uacme-1.0.22/0000755000000000000000000000000013615246553007647 500000000000000uacme-1.0.22/uacme.1.txt0000644000000000000000000002345413615245174011567 00000000000000UACME(1) ======== :doctype: manpage :man source: uacme :man version: {revision} :man manual: User Commands NAME ---- uacme - ACMEv2 client written in plain C code with minimal dependencies SYNOPSIS -------- *uacme* [*-a*|*--acme-url* 'URL'] [*-b*|*--bits* 'BITS'] [*-c*|*--confdir* 'DIR'] [*-d*|*--days* 'DAYS'] [*-f*|*--force*] [*-h*|*--hook* 'PROGRAM'] [*-m*|*--must-staple*] [*-n*|*--never*] [*-s*|*--staging*] [*-t*|*--type* *RSA*|*EC*] [*-v*|*--verbose* ...] [*-V*|*--version*] [*-y*|*--yes*] [*-?*|*--help*] *new* ['EMAIL'] | *update* ['EMAIL'] | *deactivate* | *newkey* | *issue* 'DOMAIN' ['ALTNAME' ...]] | *revoke* 'CERTFILE' DESCRIPTION ----------- *uacme* is a client for the ACMEv2 protocol described in RFC8555, written in plain C code with minimal dependencies (libcurl and one of GnuTLS, OpenSSL or mbedTLS). The ACMEv2 protocol allows a Certificate Authority ( is a popular one) and an applicant to automate the process of verification and certificate issuance. The protocol also provides facilities for other certificate management functions, such as certificate revocation. For more information see OPTIONS ------- *-a, --acme-url*='URL':: ACMEv2 server directory object 'URL'. If not specified *uacme* uses one of the following: 'https://acme-v02.api.letsencrypt.org/directory'::: production URL 'https://acme-staging-v02.api.letsencrypt.org/directory'::: staging URL (see *-s, --staging* below) *-b, --bits*='BITS':: key bit length (default 2048 for RSA, 256 for EC). Only applies to newly generated keys. RSA key length must be a multiple of 8 between 2048 and 8192. EC key length must be either 256 (*NID_X9_62_prime256v1* curve) or 384 (*NID_secp384r1* curve). *-c, --confdir*='CONFDIR':: Use configuration directory 'CONFDIR' (default '/etc/ssl/uacme'). The structure is as follows (multiple 'DOMAINs' allowed) 'CONFDIR/private/key.pem'::: ACME account private key 'CONFDIR/private/DOMAIN/key.pem'::: certificate key for 'DOMAIN' 'CONFDIR/DOMAIN/cert.pem'::: certificate for 'DOMAIN' *-d, --days*='DAYS':: Do not reissue certificates that are still valid for longer than 'DAYS' (default 30). *-f, --force*:: Force certificate reissuance regardless of expiration date. *-h, --hook*='PROGRAM':: Challenge hook program. If not specified *uacme* interacts with the user for every ACME challenge, printing information about the challenge type, token and authorization on stderr. If specified *uacme* executes 'PROGRAM' (a binary, a shell script or any file that can be executed by the operating system) for every challenge with the following 5 string arguments: 'METHOD'::: one of *begin*, *done* or *failed*. *begin*:::: is called at the beginning of the challenge. 'PROGRAM' must return 0 to accept it. Any other return code declines the challenge. Neither *done* nor *failed* method calls are made for declined challenges. *done*:::: is called upon successful completion of an accepted challenge. *failed*:::: is called upon failure of an accepted challenge. 'TYPE'::: challenge type (for example *dns-01* or *http-01*) 'IDENT'::: The identifier the challenge refers to 'TOKEN'::: The challenge token 'AUTH'::: The key authorization (for *dns-01* and *tls-alpn-01* already converted to the base64-encoded SHA256 digest format) *-m, --must-staple*:: Request certificates with the RFC7633 Certificate Status Request TLS Feature Extension, informally also known as "OCSP Must-Staple". *-n, --never-create*:: By default *uacme* creates directories/keys if they do not exist. When this option is specified *uacme* never does so and instead exits with an error if anything required is missing. *-s, --staging*:: Use Let's Encrypt staging URL for testing. This only works if *-a, --acme-url* is *NOT* specified. *-t, --type*=*RSA* | *EC*:: Key type, either RSA or EC. Only applies to newly generated keys. The bit length can be specified with *-b, --bits*. *-v, --verbose*:: By default *uacme* only produces output upon errors or when user interaction is required. When this option is specified *uacme* prints information about what is going on on stderr. This option can be specified more than once to increase verbosity. *-V, --version*:: Print program version on stderr and exit. *-y, --yes*:: Autoaccept ACME server terms (if any) upon new account creation. *-?, --help*:: Print a brief usage text on stderr and exit. USAGE ----- *uacme* ['OPTIONS' ...] *new* ['EMAIL']:: Create a new ACME account with optional 'EMAIL' contact. If the account private key does not exist at 'CONFDIR/private/key.pem' a new key is generated unless *-n, --never-create* is specified. A valid account must be created *before* any other operation can succeed. Any certificate issued by the ACME server is associated with a single account. An account can be associated with multiple certificates, subject of course to the rate limits imposed by the ACME server. *uacme* ['OPTIONS' ...] *update* ['EMAIL']:: Update the 'EMAIL' associated with the ACME account corresponding to the account private key. If 'EMAIL' is not specified the account contact email is removed. *uacme* ['OPTIONS' ...] *deactivate*:: Deactivate the ACME account corresponding to the account private key. *WARNING* this action is irreversible. Users may wish to do this when the account key is compromised or decommissioned. A deactivated account can no longer request certificate issuances and revocations or access resources related to the account. *uacme* ['OPTIONS' ...] *newkey*:: Change the ACME account private key. If the new account private key does not exist at 'CONFDIR/private/newkey.pem' it is generated unless *-n, --never-create* is specified. The new key is then submitted to the server and if the operation succeeds the old key is hardlinked to 'CONFDIR/private/key-TIMESTAMP.pem' before renaming 'CONFDIR/private/newkey.pem' to 'CONFDIR/private/key.pem'. *uacme* ['OPTIONS' ...] *issue* 'DOMAIN' ['ALTNAME' ...]:: Issue a certificate for 'DOMAIN' with zero or more 'ALTNAMEs'. If a certificate is already available at 'CONFDIR/DOMAIN/cert.pem' for the specified 'DOMAIN' and 'ALTNAMEs' and is still valid for longer than 'DAYS' no action is taken unless *-f, --force* is specified. The new certificate is saved to 'CONFDIR/DOMAIN/cert.pem'. If the certificate file already exists it is hardlinked to 'CONFDIR/DOMAIN/cert-TIMESTAMP.pem' before overwriting. The private key for the certificate is loaded from 'CONFDIR/private/DOMAIN/key.pem'. If no such file exists, a new key is generated unless *-n, --never-create* is specified. Wildcard DOMAINs or ALTNAMEs are dealt with correctly, as long as the ACME server supports them; note that any such wildcards are automatically removed from the configuration subdirectory name: for example a certificate for '*.test.com' is saved to 'CONFDIR/test.com/cert.pem'. *uacme* ['OPTIONS' ...] *revoke* 'CERTFILE':: Revoke the certificate stored in 'CERTFILE'. Only certificates associated with the account can be revoked. If successful 'CERTFILE' is renamed to 'revoked-TIMESTAMP.pem'. EXIT STATUS ----------- *0*:: Success *1*:: Certificate not reissued because it is still current *2*:: Failure (syntax or usage error; configuration error; processing failure; unexpected error). EXAMPLE HOOK SCRIPT ------------------- The 'uacme.sh' hook script included in the distribution can be used to automate the certificate issuance with 'http-01' challenges, provided a web server for the domain being validated runs on the same machine, with webroot at /var/www #!/bin/sh CHALLENGE_PATH=/var/www/.well-known/acme-challenge ARGS=5 E_BADARGS=85 if test $# -ne "$ARGS" then echo "Usage: $(basename "$0") method type ident token auth" 1>&2 exit $E_BADARGS fi METHOD=$1 TYPE=$2 IDENT=$3 TOKEN=$4 AUTH=$5 case "$METHOD" in "begin") case "$TYPE" in http-01) echo -n "${AUTH}" > "${CHALLENGE_PATH}/${TOKEN}" exit $? ;; *) exit 1 ;; esac ;; "done"|"failed") case "$TYPE" in http-01) rm "${CHALLENGE_PATH}/${TOKEN}" exit $? ;; *) exit 1 ;; esac ;; *) echo "$0: invalid method" 1>&2 exit 1 esac BUGS ---- If you believe you have found a bug, please create a new issue at https://github.com/ndilieto/uacme/issues with any applicable information. AUTHOR ------ *uacme* was written by Nicola Di Lieto COPYRIGHT --------- Copyright (C) 2019,2020 Nicola Di Lieto This file is part of *uacme*. *uacme* is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. *uacme* is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . uacme-1.0.22/ChangeLog0000644000000000000000000001056713615245311011341 000000000000002020-02-01 Nicola Di Lieto * Release 1.0.22 - relax account status check (compatibility with buypass.no) - allow client challenge retry requests (RFC8555 sec. 7.1.6) - pass -L flag to a2x in order to avoid depending on xmllint - add wildcard clarification in manpage 2020-01-12 Nicola Di Lieto * Release 1.0.21 - Fixed uacme.sh: https://github.com/ndilieto/uacme/pull/12 - Added LFS support (AC_SYS_LARGEFILE) 2019-10-03 Nicola Di Lieto * Release 1.0.20 - improved HTTP header parsing to fix problem that can happen when retrieving directory over HTTP/2 2019-09-30 Nicola Di Lieto * Release 1.0.19 - Fix configure script bug when using explicit PKG_CONFIG environment variable - explicitly set key usage in certificate request 2019-08-29 Nicola Di Lieto * Release 1.0.18 - support for OCSP Must-Staple (-m, --must-staple) - explicitly set key usage constraints with mbedTLS - fix compilation warning with gcc7 on solaris 2019-07-03 Nicola Di Lieto * Release 1.0.17 - fix pedantic compilation warning - configure fails if pkg-config isn't found 2019-06-17 Nicola Di Lieto * Release 1.0.16 - Configure script checks for libcurl HTTPS support - Minor man page corrections 2019-06-15 Nicola Di Lieto * Release 1.0.15 - Exit with error if both -a and -s are specified - Avoid depending on libtasn1 if gnutls_decode_rs_value is available 2019-06-12 Nicola Di Lieto * Release 1.0.14 - Fix deprecated API when building with OpenSSL v1.1.1c 2019-06-05 Nicola Di Lieto * Release 1.0.13 - Disable mbedTLS runtime version check if not available 2019-05-18 Nicola Di Lieto * Release 1.0.12 - Ensure EC key params are always properly padded - Improved hook_run error checking 2019-05-17 Nicola Di Lieto * Release 1.0.11 - Key rollover (https://tools.ietf.org/html/rfc8555#section-7.3.5) - Revoked cert files now renamed to 'revoked-TIMESTAMP.pem' - Key auth contains SHA256 digest for tls-alpn-01 (like dns-01) - Minor logging improvements 2019-05-12 Nicola Di Lieto * Release 1.0.10 - added secp384r1 EC key support - -b, --bits option accepts 256 or 384 for EC keys - enforce multiple of 8 RSA key size - improved acme_get and acme_post verbose logging - retry upon badNonce response according to RFC8555 6.5 - mbedtls: fixed incorrect size of EC signature 2019-05-09 Nicola Di Lieto * Release 1.0.9 - added EC key/cert support (-t, --type=EC, default RSA) - added RSA key length option (-b, --bits=BITS, default 2048) 2019-05-04 Nicola Di Lieto * Release 1.0.8 - added OpenSSL support (./configure --with-openssl) - check libraries versions at both compile and run time - exit codes: 0=success, 1=cert issuance skipped, 2=error - mbedtls: dynamically grow buffers when needed 2019-04-29 Nicola Di Lieto * Release 1.0.7 - added HTTP User-Agent: header to all requests - added --disable-docs configure option - manpage version now updated automatically 2019-04-27 Nicola Di Lieto * Release 1.0.6 - fix uninitialized variable in authorize() 2019-04-27 Nicola Di Lieto * Release 1.0.5 - add AM_MAINTAINER_MODE to configure.ac - minor cosmetic change to json primitive dump 2019-04-26 Nicola Di Lieto * Release 1.0.4 - debian packaging - fix potential uninitialized var access in acme_get() - fix fprintf format string in _json_dump() - copy doc/index.html on demand only 2019-04-25 Nicola Di Lieto * Release 1.0.3 - fixed more -pedantic gcc warnings - html manpage in html5; copy as doc/html for github hosting 2019-04-24 Nicola Di Lieto * Release 1.0.2 - allow choosing between GnuTLS and mbedTLS at compile time - improved directory existence check - fixed -Wall -pedantic gcc warnings 2019-04-21 Nicola Di Lieto * Release 1.0.1 - fix acme challenge web server path - fix spelling in help text 2019-04-21 Nicola Di Lieto * First public release (1.0) uacme-1.0.22/json.c0000644000000000000000000002000113606613667010701 00000000000000/* * Copyright (C) 2019,2020 Nicola Di Lieto * * This file is part of uacme. * * uacme is free software: you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * uacme is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see * . */ #include #include #include #include #include #include "json.h" #include "jsmn.h" static int json_build(const char *js, jsmntok_t *t, size_t count, json_value_t *value) { int i, j, k; if (count <= 0) { return 0; } switch (t->type) { case JSMN_PRIMITIVE: value->type = JSON_PRIMITIVE; value->v.value = strndup(js+t->start, t->end - t->start); if (!value->v.value) { warn("json_build: strndup failed"); return -1; } return 1; case JSMN_STRING: value->type = JSON_STRING; value->v.value = strndup(js+t->start, t->end - t->start); if (!value->v.value) { warn("json_build: strndup failed"); return -1; } return 1; case JSMN_OBJECT: value->type = JSON_OBJECT; value->v.object.size = t->size; value->v.object.names = calloc(t->size, sizeof(json_value_t)); value->v.object.values = calloc(t->size, sizeof(json_value_t)); if (!value->v.object.names || !value->v.object.values) { warn("json_build: calloc failed"); return -1; } for (j = i = 0; i < t->size; i++) { value->v.object.names[i].parent = value; value->v.object.values[i].parent = value; k = json_build(js, t+1+j, count-j, value->v.object.names+i); if (k < 0) return k; else j += k; k = json_build(js, t+1+j, count-j, value->v.object.values+i); if (k < 0) return k; else j += k; } return j+1; case JSMN_ARRAY: value->type = JSON_ARRAY; value->v.array.size = t->size; value->v.array.values = calloc(t->size, sizeof(json_value_t)); if (!value->v.array.values) { warn("json_build: calloc failed"); return -1; } for (j = i = 0; i < t->size; i++) { value->v.array.values[i].parent = value; k = json_build(js, t+1+j, count-j, value->v.array.values+i); if (k < 0) return k; else j += k; } return j+1; default: value->type = JSON_UNDEFINED; return 0; } } static void _json_dump(FILE *f, const json_value_t *value, size_t indent) { size_t i,j; if (!value) return; switch (value->type) { case JSON_PRIMITIVE: fprintf(f, "%s", value->v.value); return; case JSON_STRING: fprintf(f, "\"%s\"", value->v.value); return; case JSON_OBJECT: fprintf(f, "{\n"); for (i = 0; i < value->v.object.size; i++) { for (j=0; j<4*(indent+1); j++) fputc(' ', f); _json_dump(f, value->v.object.names+i, indent + 1); fprintf(f, ": "); _json_dump(f, value->v.object.values+i, indent + 1); if (i < value->v.object.size - 1) fputc(',', f); fputc('\n', f); } for (j=0; j<4*indent; j++) fputc(' ', f); fputc('}', f); if (indent == 0) { fputc('\n', f); } return; case JSON_ARRAY: fprintf(f, "[\n"); for (i = 0; i < value->v.array.size; i++) { for (j=0; j<4*(indent+1); j++) fputc(' ', f); _json_dump(f, value->v.array.values+i, indent + 1); if (i < value->v.array.size - 1) fputc(',', f); fputc('\n', f); } for (j=0; j<4*indent; j++) fputc(' ', f); fputc(']', f); if (indent == 0) { fputc('\n', f); } return; default: return; } } void json_dump(FILE *f, const json_value_t *value) { _json_dump(f, value, 0); } void json_free(json_value_t *value) { size_t i; if (!value) return; switch (value->type) { case JSON_PRIMITIVE: case JSON_STRING: free(value->v.value); break; case JSON_OBJECT: for (i = 0; i < value->v.object.size; i++) { json_free(value->v.object.names+i); json_free(value->v.object.values+i); } free(value->v.object.names); free(value->v.object.values); break; case JSON_ARRAY: for (i = 0; i < value->v.array.size; i++) { json_free(value->v.array.values+i); } free(value->v.array.values); break; default: break; } if (!value->parent) { free(value); } } const json_value_t *json_find(const json_value_t *haystack, const char *needle) { if (!haystack || haystack->type != JSON_OBJECT) { return NULL; } for (size_t i=0; iv.object.size; i++) { if (strcmp(haystack->v.object.names[i].v.value, needle) == 0) { return haystack->v.object.values + i; } } return NULL; } const char *json_find_string(const json_value_t *haystack, const char *needle) { if (!haystack || haystack->type != JSON_OBJECT) { return NULL; } for (size_t i=0; iv.object.size; i++) { if (haystack->v.object.values[i].type == JSON_STRING && strcmp(haystack->v.object.names[i].v.value, needle) == 0) { return haystack->v.object.values[i].v.value; } } return NULL; } int json_compare_string(const json_value_t *haystack, const char *name, const char *value) { const char *tmp = json_find_string(haystack, name); if (tmp) { return strcmp(tmp, value); } else { return INT_MIN; } } json_value_t *json_parse(const char *body, size_t body_len) { json_value_t *ret = NULL; jsmn_parser parser; unsigned int tok_len = 2; jsmntok_t *tok = calloc(tok_len, sizeof(*tok)); if (!tok) { warn("json_parse: calloc failed"); return NULL; } jsmn_init(&parser); while (1) { int r = jsmn_parse(&parser, body, body_len, tok, tok_len); if (r < 0) { if (r == JSMN_ERROR_NOMEM) { void *p = realloc(tok, sizeof(*tok) * tok_len * 2); if (!p) { warn("json_parse: realloc failed"); break; } tok_len *= 2; tok = p; } else { warnx("json_parse: jsmn_parse failed with code %d", r); break; } } else { ret = calloc(1, sizeof(json_value_t)); if (!ret) { warn("json_parse: calloc failed"); break; } json_build(body, tok, parser.toknext, ret); break; } } free(tok); return ret; } uacme-1.0.22/uacme.sh0000755000000000000000000000304413615245550011215 00000000000000#!/bin/sh # Copyright (C) 2019,2020 Nicola Di Lieto # # This file is part of uacme. # # uacme is free software: you can redistribute it and/or modify it # under the terms of the GNU General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # # uacme is distributed in the hope that it will be useful, but # WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. If not, see . CHALLENGE_PATH="${UACME_CHALLENGE_PATH:-/var/www/.well-known/acme-challenge}" ARGS=5 E_BADARGS=85 if test $# -ne "$ARGS" then echo "Usage: $(basename "$0") method type ident token auth" 1>&2 exit $E_BADARGS fi METHOD=$1 TYPE=$2 IDENT=$3 TOKEN=$4 AUTH=$5 case "$METHOD" in "begin") case "$TYPE" in http-01) echo -n "${AUTH}" > "${CHALLENGE_PATH}/${TOKEN}" exit $? ;; *) exit 1 ;; esac ;; "done"|"failed") case "$TYPE" in http-01) rm "${CHALLENGE_PATH}/${TOKEN}" exit $? ;; *) exit 1 ;; esac ;; *) echo "$0: invalid method" 1>&2 exit 1 esac uacme-1.0.22/curlwrap.c0000644000000000000000000001312513606613667011600 00000000000000/* * Copyright (C) 2019,2020 Nicola Di Lieto * * This file is part of uacme. * * uacme is free software: you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * uacme is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see * . */ #include #include #include #include #include "curlwrap.h" curldata_t *curldata_calloc(void) { curldata_t *c = calloc(1, sizeof(curldata_t)); if (!c) { warn("curldata_calloc: calloc failed"); return NULL; } c->body = strdup(""); if (!c->body) { warn("curldata_calloc: strdup failed"); free(c); return NULL; } c->headers = strdup(""); if (!c->headers) { warn("curldata_calloc: strdup failed"); free(c->body); free(c); return NULL; } return c; } void curldata_free(curldata_t *c) { if (!c) return; free(c->body); free(c->headers); free(c); } static size_t curl_hcb(char *buf, size_t size, size_t n, void *userdata) { curldata_t *c = (curldata_t *)userdata; void *p = realloc(c->headers, c->headers_len + size * n + 1); if (!p) { warn("curl_hcb: realloc failed"); return 0; } c->headers = p; memcpy(c->headers + c->headers_len, buf, size * n); c->headers_len += size * n; c->headers[c->headers_len] = 0; return size * n; } static size_t curl_wcb(void *ptr, size_t size, size_t n, void *userdata) { curldata_t *c = (curldata_t *)userdata; void *p = realloc(c->body, c->body_len + size * n + 1); if (!p) { warn("curl_wcb: realloc failed"); return 0; } c->body = p; memcpy(c->body + c->body_len, ptr, size * n); c->body_len += size * n; c->body[c->body_len] = 0; return size * n; } curldata_t *curl_get(const char *url) { curldata_t *c = NULL; for (int retry = 0; retry < 3; retry++) { CURL *curl; CURLcode res; curl = curl_easy_init(); if (!curl) { warnx("curl_get: curl_easy_init failed"); return NULL; } c = curldata_calloc(); if (!c) { warnx("curl_get: curldata_calloc failed"); curl_easy_cleanup(curl); return NULL; } curl_easy_setopt(curl, CURLOPT_URL, url); curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, curl_wcb); curl_easy_setopt(curl, CURLOPT_WRITEDATA, c); curl_easy_setopt(curl, CURLOPT_HEADERFUNCTION, curl_hcb); curl_easy_setopt(curl, CURLOPT_HEADERDATA, c); curl_easy_setopt(curl, CURLOPT_USERAGENT, "uacme/" VERSION " (https://github.com/ndilieto/uacme)"); res = curl_easy_perform(curl); if (res != CURLE_OK) { warnx("curl_get: GET %s failed: %s", url, curl_easy_strerror(res)); curldata_free(c); c = NULL; } else { long code = -1; curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &code); c->code = code; } curl_easy_cleanup(curl); if (c) { break; } else if (retry < 3) { warnx("curl_get: waiting 5 seconds before retrying"); sleep(5); } } return c; } curldata_t *curl_post(const char *url, const char *post) { curldata_t *c = NULL; for (int retry = 0; retry < 3; retry++) { CURL *curl; CURLcode res; struct curl_slist *list = NULL; curl = curl_easy_init(); if (!curl) { warnx("curl_post: curl_easy_init failed"); return NULL; } c = curldata_calloc(); if (!c) { warnx("curl_post: curldata_calloc failed"); curl_easy_cleanup(curl); return NULL; } curl_easy_setopt(curl, CURLOPT_URL, url); curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, curl_wcb); curl_easy_setopt(curl, CURLOPT_WRITEDATA, c); curl_easy_setopt(curl, CURLOPT_HEADERFUNCTION, curl_hcb); curl_easy_setopt(curl, CURLOPT_HEADERDATA, c); curl_easy_setopt(curl, CURLOPT_USERAGENT, "uacme/" VERSION " (https://github.com/ndilieto/uacme)"); curl_easy_setopt(curl, CURLOPT_POSTFIELDS, post); list = curl_slist_append(list, "Content-Type: application/jose+json"); curl_easy_setopt(curl, CURLOPT_HTTPHEADER, list); res = curl_easy_perform(curl); curl_slist_free_all(list); if (res != CURLE_OK) { warnx("curl_post: POST %s failed: %s", url, curl_easy_strerror(res)); curldata_free(c); c = NULL; } else { long code = -1; curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &code); c->code = code; } curl_easy_cleanup(curl); if (c) { break; } else if (retry < 3) { warnx("curl_post: waiting 5 seconds before retrying"); sleep(5); } } return c; } uacme-1.0.22/Makefile.am0000644000000000000000000000345613615245113011622 00000000000000# Copyright (C) 2019,2020 Nicola Di Lieto # # This file is part of uacme. # # uacme is free software: you can redistribute it and/or modify it # under the terms of the GNU General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # # uacme is distributed in the hope that it will be useful, but # WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. If not, see . bin_PROGRAMS = uacme uacme_SOURCES = uacme.c base64.c base64.h crypto.c crypto.h \ curlwrap.c curlwrap.h json.c json.h jsmn.h \ msg.c msg.h if ENABLE_READFILE uacme_SOURCES += read-file.c read-file.h endif BUILT_SOURCES = $(top_srcdir)/.version $(top_srcdir)/.version: echo $(VERSION) > $@-t && mv $@-t $@ dist-hook: echo $(VERSION) > $(distdir)/.tarball-version dist_pkgdata_SCRIPTS = uacme.sh if ENABLE_DOCS dist_man1_MANS = uacme.1 dist_html_DATA = uacme.1.html uacme.1: uacme.1.txt $(top_srcdir)/.version $(A2X) -L -d manpage -f manpage -a revision=$(VERSION) $< uacme.1.html: uacme.1.txt $(top_srcdir)/.version $(ASCIIDOC) -d manpage -b html5 -a revision=$(VERSION) $< $(top_srcdir)/docs/index.html: uacme.1.html mkdir -p docs cp uacme.1.html $@ endif .PHONY: valgrind valgrind: uacme valgrind --tool=memcheck --leak-check=yes --show-reachable=yes \ --num-callers=20 --track-fds=yes --log-file=valgrind.log \ $(builddir)/uacme $(VALGRIND_UACME_ARGS) EXTRA_DIST = GNUmakefile build-aux/git-version-gen uacme.sh uacme.1.txt \ uacme.1 uacme.1.html CLEANFILES = valgrind.log uacme-1.0.22/INSTALL0000644000000000000000000003661013532041502010607 00000000000000Installation Instructions ************************* Copyright (C) 1994-1996, 1999-2002, 2004-2013 Free Software Foundation, Inc. Copying and distribution of this file, with or without modification, are permitted in any medium without royalty provided the copyright notice and this notice are preserved. This file is offered as-is, without warranty of any kind. Basic Installation ================== Briefly, the shell command `./configure && make && make install' should configure, build, and install this package. The following more-detailed instructions are generic; see the `README' file for instructions specific to this package. Some packages provide this `INSTALL' file but do not implement all of the features documented below. The lack of an optional feature in a given package is not necessarily a bug. More recommendations for GNU packages can be found in *note Makefile Conventions: (standards)Makefile Conventions. The `configure' shell script attempts to guess correct values for various system-dependent variables used during compilation. It uses those values to create a `Makefile' in each directory of the package. It may also create one or more `.h' files containing system-dependent definitions. Finally, it creates a shell script `config.status' that you can run in the future to recreate the current configuration, and a file `config.log' containing compiler output (useful mainly for debugging `configure'). It can also use an optional file (typically called `config.cache' and enabled with `--cache-file=config.cache' or simply `-C') that saves the results of its tests to speed up reconfiguring. Caching is disabled by default to prevent problems with accidental use of stale cache files. If you need to do unusual things to compile the package, please try to figure out how `configure' could check whether to do them, and mail diffs or instructions to the address given in the `README' so they can be considered for the next release. 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Defining Variables ================== Variables not defined in a site shell script can be set in the environment passed to `configure'. However, some packages may run configure again during the build, and the customized values of these variables may be lost. In order to avoid this problem, you should set them in the `configure' command line, using `VAR=value'. For example: ./configure CC=/usr/local2/bin/gcc causes the specified `gcc' to be used as the C compiler (unless it is overridden in the site shell script). Unfortunately, this technique does not work for `CONFIG_SHELL' due to an Autoconf limitation. Until the limitation is lifted, you can use this workaround: CONFIG_SHELL=/bin/bash ./configure CONFIG_SHELL=/bin/bash `configure' Invocation ====================== `configure' recognizes the following options to control how it operates. `--help' `-h' Print a summary of all of the options to `configure', and exit. `--help=short' `--help=recursive' Print a summary of the options unique to this package's `configure', and exit. The `short' variant lists options used only in the top level, while the `recursive' variant lists options also present in any nested packages. `--version' `-V' Print the version of Autoconf used to generate the `configure' script, and exit. `--cache-file=FILE' Enable the cache: use and save the results of the tests in FILE, traditionally `config.cache'. FILE defaults to `/dev/null' to disable caching. `--config-cache' `-C' Alias for `--cache-file=config.cache'. `--quiet' `--silent' `-q' Do not print messages saying which checks are being made. To suppress all normal output, redirect it to `/dev/null' (any error messages will still be shown). `--srcdir=DIR' Look for the package's source code in directory DIR. Usually `configure' can determine that directory automatically. `--prefix=DIR' Use DIR as the installation prefix. *note Installation Names:: for more details, including other options available for fine-tuning the installation locations. `--no-create' `-n' Run the configure checks, but stop before creating any output files. `configure' also accepts some other, not widely useful, options. Run `configure --help' for more details. uacme-1.0.22/read-file.h0000644000000000000000000000213513532041502011552 00000000000000/* read-file.h -- read file contents into a string Copyright (C) 2006, 2009-2015 Free Software Foundation, Inc. Written by Simon Josefsson. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, see . */ #ifndef READ_FILE_H #define READ_FILE_H /* Get size_t. */ #include /* Get FILE. */ #include extern char *fread_file (FILE * stream, size_t * length); extern char *read_file (const char *filename, size_t * length); extern char *read_binary_file (const char *filename, size_t * length); #endif /* READ_FILE_H */ uacme-1.0.22/AUTHORS0000644000000000000000000000011513532041502010615 00000000000000Nicola Di Lieto * Original program author uacme-1.0.22/configure.ac0000644000000000000000000003066313606613667012071 00000000000000# Copyright (C) 2019,2020 Nicola Di Lieto # # This file is part of uacme. # # uacme is free software: you can redistribute it and/or modify it # under the terms of the GNU General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # # uacme is distributed in the hope that it will be useful, but # WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. If not, see . AC_PREREQ(2.53) AC_INIT([uacme], [m4_esyscmd([build-aux/git-version-gen .tarball-version])]) AC_CONFIG_SRCDIR([uacme.c]) AC_CONFIG_MACRO_DIRS([build-aux/m4]) AC_CONFIG_AUX_DIR([build-aux]) AM_INIT_AUTOMAKE([subdir-objects]) AM_MAINTAINER_MODE([enable]) AM_SILENT_RULES([yes]) AX_IS_RELEASE([git-directory]) AX_CHECK_ENABLE_DEBUG([yes]) if test -z "$SED"; then AC_PATH_PROG([SED], [sed], [not_found], [$PATH:/usr/bin:/usr/local/bin]) if test -z "$SED" || test "$SED" = "not_found"; then AC_MSG_ERROR([sed not found in PATH. Cannot continue without sed.]) fi fi AC_SUBST([SED]) AC_USE_SYSTEM_EXTENSIONS AC_PROG_CC AC_PROG_CC_C99 if test "x$ac_cv_prog_cc_c99" = "xno"; then AC_MSG_ERROR([Could not find a C99 compatible compiler]) fi AC_CHECK_FUNCS([asprintf vasprintf], [], AC_MSG_ERROR([(v)asprintf not found])) AX_CHECK_COMPILE_FLAG([$CFLAGS -Wall], [CFLAGS="$CFLAGS -Wall"]) AX_CHECK_COMPILE_FLAG([$CFLAGS -Wextra], [CFLAGS="$CFLAGS -Wextra"]) AX_CHECK_COMPILE_FLAG([$CFLAGS -pedantic], [CFLAGS="$CFLAGS -pedantic"]) AC_SYS_LARGEFILE if test -n "$PKG_CONFIG"; then PKGCONFIG="$PKG_CONFIG" if test -z "`$PKGCONFIG --version`"; then AC_MSG_ERROR([PKG_CONFIG is invalid]) fi else PKG_PROG_PKG_CONFIG([0.28]) if test "x$PKG_CONFIG" = "x"; then AC_MSG_ERROR([Could not find pkg-config]) else PKGCONFIG="$PKG_CONFIG" fi fi OPT_LIBCURL=yes AC_ARG_WITH([libcurl], [AS_HELP_STRING([--with-libcurl=PATH],[PATH is libcurl installation root])], OPT_LIBCURL=$withval) if test "x$OPT_LIBCURL" = "xno"; then AC_MSG_ERROR([libcurl must be enabled]) fi if test "x$OPT_LIBCURL" = "xyes"; then AC_MSG_CHECKING([for libcurl >= 7.38.0]) itexists=`$PKGCONFIG --exists 'libcurl >= 7.38.0' >/dev/null 2>&1 && echo 1` if test -z "$itexists"; then AC_MSG_RESULT([no]) AC_MSG_ERROR([libcurl not found]) else addlib=`$PKGCONFIG --libs-only-l libcurl` addld=`$PKGCONFIG --libs-only-L libcurl` addcflags=`$PKGCONFIG --cflags-only-I libcurl` version=`$PKGCONFIG --modversion libcurl` curllib=`echo $addld | $SED -e 's/-L//'` AC_MSG_RESULT([found $version]) AC_MSG_CHECKING([for libcurl https support]) https=`$PKGCONFIG --variable=supported_protocols libcurl 2>/dev/null | grep -q HTTPS && echo 1` if test -z "$https"; then AC_MSG_RESULT([no]) AC_MSG_ERROR([libcurl does not support https]) fi AC_MSG_RESULT([yes]) fi else addlib=-lcurl addld=-L$OPT_LIBCURL/lib$libsuff addcflags=-I$OPT_LIBCURL/include curllib=$OPT_LIBCURL/lib$libsuff fi LIBS="$addlib $LIBS" LDFLAGS="$LDFLAGS $addld" if test "$addcflags" != "-I/usr/include"; then CPPFLAGS="$CPPFLAGS $addcflags" fi AC_CHECK_LIB(curl, curl_global_init, [CURL_ENABLED=1], [AC_MSG_ERROR([libcurl check failed])]) if test -n "$curllib"; then if test "x$cross_compiling" != "xyes"; then UACME_LIBRARY_PATH="$UACME_LIBRARY_PATH:$curllib" export UACME_LIBRARY_PATH AC_MSG_NOTICE([Added $curllib to UACME_LIBRARY_PATH]) fi fi OPT_MBEDTLS=no AC_ARG_WITH([mbedtls], [AS_HELP_STRING([--with-mbedtls=PATH],[enable mbedTLS, PATH is installation root]) AS_HELP_STRING([--without-mbedtls], [disable mbedTLS detection])], OPT_MBEDTLS=$withval) OPT_OPENSSL=no AC_ARG_WITH([openssl], [AS_HELP_STRING([--with-openssl=PATH],[enable OpenSSL, PATH is installation root]) AS_HELP_STRING([--without-openssl], [disable OpenSSL detection])], OPT_OPENSSL=$withval) if test "x$OPT_MBEDTLS" = "xno" -a "x$OPT_OPENSSL" = "xno"; then OPT_GNUTLS=yes else OPT_GNUTLS=no fi AC_ARG_WITH([gnutls], [AS_HELP_STRING([--with-gnutls=PATH], [enable GnuTLS, PATH is installation root]) AS_HELP_STRING([--without-gnutls], [disable GnuTLS detection])], OPT_GNUTLS=$withval) if test "x$OPT_GNUTLS" = "xno" -a "x$OPT_MBEDTLS" = "xno" -a "x$OPT_OPENSSL" = "xno"; then AC_MSG_ERROR([One of GnuTLS, OpenSSL or mbedTLS must be enabled]) fi if test "x$OPT_GNUTLS" != "xno" -a "x$OPT_MBEDTLS" != "xno"; then AC_MSG_ERROR([GnuTLS and mbedTLS cannot be both enabled]) fi if test "x$OPT_GNUTLS" != "xno" -a "x$OPT_OPENSSL" != "xno"; then AC_MSG_ERROR([GnuTLS and OpenSSL cannot be both enabled]) fi if test "x$OPT_OPENSSL" != "xno" -a "x$OPT_MBEDTLS" != "xno"; then AC_MSG_ERROR([OpenSSL and mbedTLS cannot be both enabled]) fi if test "x$OPT_GNUTLS" != "xno"; then addlib="" if test "x$OPT_GNUTLS" = "xyes"; then AC_MSG_CHECKING([for GnuTLS >= 3.3.30]) itexists=`$PKGCONFIG --exists 'gnutls >= 3.3.30' >/dev/null 2>&1 && echo 1` if test -z "$itexists"; then AC_MSG_RESULT([no]) AC_MSG_ERROR([gnutls not found]) else addlib=`$PKGCONFIG --libs-only-l gnutls` addld=`$PKGCONFIG --libs-only-L gnutls` addcflags=`$PKGCONFIG --cflags-only-I gnutls` version=`$PKGCONFIG --modversion gnutls` gtlslib=`echo $addld | $SED -e 's/-L//'` AC_MSG_RESULT([found $version]) fi else addlib=-lgnutls addld=-L$OPT_GNUTLS/lib$libsuff addcflags=-I$OPT_GNUTLS/include gtlslib=$OPT_GNUTLS/lib$libsuff fi if test -n "$addlib"; then LIBS="$addlib $LIBS" LDFLAGS="$LDFLAGS $addld" if test "$addcflags" != "-I/usr/include"; then CPPFLAGS="$CPPFLAGS $addcflags" fi AC_CHECK_LIB(gnutls, gnutls_global_init, [AC_DEFINE(USE_GNUTLS, 1, [if GnuTLS is enabled]) AC_SUBST(USE_GNUTLS, [1]) GNUTLS_ENABLED=1 USE_GNUTLS="yes"], [AC_MSG_ERROR([gnutls check failed])]) AC_CHECK_FUNCS([gnutls_decode_rs_value], [], [NEED_LIBTASN1="yes"]) AC_CHECK_FUNCS([gnutls_x509_crq_set_tlsfeatures], [], [AC_MSG_NOTICE([--must-staple requires GnuTLS 3.5.1 or later])]) if test "x$USE_GNUTLS" = "xyes"; then if test -n "$gtlslib"; then if test "x$cross_compiling" != "xyes"; then UACME_LIBRARY_PATH="$UACME_LIBRARY_PATH:$gtlslib" export UACME_LIBRARY_PATH AC_MSG_NOTICE([Added $gtlslib to UACME_LIBRARY_PATH]) fi fi fi fi fi if test "x$NEED_LIBTASN1" = "xyes"; then addlib="" AC_MSG_CHECKING([for libtasn1 >= 4.2]) itexists=`$PKGCONFIG --exists 'libtasn1 >= 4.2' >/dev/null 2>&1 && echo 1` if test -z "$itexists"; then AC_MSG_RESULT([no]) AC_MSG_ERROR([libtasn1 not found]) else addlib=`$PKGCONFIG --libs-only-l libtasn1` addld=`$PKGCONFIG --libs-only-L libtasn1` addcflags=`$PKGCONFIG --cflags-only-I libtasn1` version=`$PKGCONFIG --modversion libtasn1` tasn1lib=`echo $addld | $SED -e 's/-L//'` AC_MSG_RESULT([found $version]) fi if test -n "$addlib"; then LIBS="$addlib $LIBS" LDFLAGS="$LDFLAGS $addld" if test "$addcflags" != "-I/usr/include"; then CPPFLAGS="$CPPFLAGS $addcflags" fi AC_CHECK_LIB(tasn1, asn1_get_tag_der, [AC_DEFINE(USE_LIBTASN1, 1, [if libtasn1 is enabled]) AC_SUBST(USE_LIBTASN1, [1]) LIBTASN1_ENABLED=1 USE_LIBTASN1="yes"], [AC_MSG_ERROR([libtasn1 check failed])]) if test "x$USE_LIBTASN1" = "xyes"; then if test -n "$tasn1lib"; then if test "x$cross_compiling" != "xyes"; then UACME_LIBRARY_PATH="$UACME_LIBRARY_PATH:$tasn1lib" export UACME_LIBRARY_PATH AC_MSG_NOTICE([Added $tasn1lib to UACME_LIBRARY_PATH]) fi fi fi fi fi if test "x$OPT_OPENSSL" != "xno"; then addlib="" if test "x$OPT_OPENSSL" = "xyes"; then AC_MSG_CHECKING([for OpenSSL >= 1.1.1]) itexists=`$PKGCONFIG --exists 'openssl >= 1.1.1' >/dev/null 2>&1 && echo 1` if test -z "$itexists"; then AC_MSG_RESULT([no]) AC_MSG_ERROR([openssl not found]) else addlib=`$PKGCONFIG --libs-only-l openssl` addld=`$PKGCONFIG --libs-only-L openssl` addcflags=`$PKGCONFIG --cflags-only-I openssl` version=`$PKGCONFIG --modversion openssl` openssllib=`echo $addld | $SED -e 's/-L//'` AC_MSG_RESULT([found $version]) fi else addlib="-lssl -lcrypto" addld=-L$OPT_OPENSSL/lib$libsuff addcflags=-I$OPT_OPENSSL/include openssllib=$OPT_OPENSSL/lib$libsuff fi if test -n "$addlib"; then LIBS="$addlib $LIBS" LDFLAGS="$LDFLAGS $addld" if test "$addcflags" != "-I/usr/include"; then CPPFLAGS="$CPPFLAGS $addcflags" fi AC_CHECK_LIB(ssl, OpenSSL_version_num, [AC_DEFINE(USE_OPENSSL, 1, [if OpenSSL is enabled]) AC_SUBST(USE_OPENSSL, [1]) OPENSSL_ENABLED=1 USE_OPENSSL="yes"], [AC_MSG_ERROR([openssl check failed])]) if test "x$USE_OPENSSL" = "xyes"; then if test -n "$openssllib"; then if test "x$cross_compiling" != "xyes"; then UACME_LIBRARY_PATH="$UACME_LIBRARY_PATH:$openssllib" export UACME_LIBRARY_PATH AC_MSG_NOTICE([Added $openssllib to UACME_LIBRARY_PATH]) fi fi fi fi fi AM_CONDITIONAL(ENABLE_READFILE, test "x$USE_OPENSSL" != "xyes") if test "x$OPT_MBEDTLS" != "xno"; then if test "x$OPT_MBEDTLS" = "xyes"; then OPT_MBEDTLS="" fi if test -z "$OPT_MBEDTLS" ; then AC_CHECK_LIB(mbedtls, mbedtls_entropy_init, [AC_DEFINE(USE_MBEDTLS, 1, [if mbedTLS is enabled]) AC_SUBST(USE_MBEDTLS, [1]) MBEDTLS_ENABLED=1 USE_MBEDTLS="yes"], [], -lmbedtls -lmbedx509 -lmbedcrypto) fi addld="" addlib="" addcflags="" mbedtlslib="" if test "x$USE_MBEDTLS" != "xyes"; then addld=-L$OPT_MBEDTLS/lib$libsuff addcflags=-I$OPT_MBEDTLS/include mbedtlslib=$OPT_MBEDTLS/lib$libsuff LDFLAGS="$LDFLAGS $addld" if test "$addcflags" != "-I/usr/include"; then CPPFLAGS="$CPPFLAGS $addcflags" fi AC_CHECK_LIB(mbedtls, mbedtls_entropy_init, [AC_DEFINE(USE_MBEDTLS, 1, [if mbedTLS is enabled]) AC_SUBST(USE_MBEDTLS, [1]) MBEDTLS_ENABLED=1 USE_MBEDTLS="yes"], [AC_MSG_ERROR([mbedtls check failed])], -lmbedtls -lmbedx509 -lmbedcrypto) fi if test "x$USE_MBEDTLS" = "xyes"; then AC_MSG_NOTICE([detected mbedTLS]) LIBS="-lmbedtls -lmbedx509 -lmbedcrypto $LIBS" if test -n "$mbedtlslib"; then if test "x$cross_compiling" != "xyes"; then UACME_LIBRARY_PATH="$UACME_LIBRARY_PATH:$mbedtlslib" export UACME_LIBRARY_PATH AC_MSG_NOTICE([Added $mbedtlslib to UACME_LIBRARY_PATH]) fi fi fi fi default_docs="yes" AC_ARG_ENABLE(docs, [AC_HELP_STRING([--disable-docs], [do not build and install documentation])], [],enable_docs=$default_docs) AM_CONDITIONAL(ENABLE_DOCS, test "x$enable_docs" = "xyes") if test "x$enable_docs" = "xyes"; then AC_PATH_PROG(A2X, a2x, no) AC_PATH_PROG(ASCIIDOC, asciidoc, no) AS_IF([test "x$A2X" = "xno"], [AC_MSG_ERROR([Could not find a2x.])]) AS_IF([test "x$ASCIIDOC" = "xno"], [AC_MSG_ERROR([Could not find asciidoc.])]) fi AC_CONFIG_FILES([Makefile]) AC_OUTPUT uacme-1.0.22/msg.c0000644000000000000000000000174313606613667010532 00000000000000/* * Copyright (C) 2019,2020 Nicola Di Lieto * * This file is part of uacme. * * uacme is free software: you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * uacme is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see * . */ #include #include #include "msg.h" int g_loglevel = 0; void msg(int level, const char *format, ...) { va_list ap; if (level > g_loglevel) return; va_start(ap, format); vwarnx(format, ap); va_end(ap); } uacme-1.0.22/.tarball-version0000644000000000000000000000000713615246553012671 000000000000001.0.22 uacme-1.0.22/uacme.1.html0000644000000000000000000007670713615246553011727 00000000000000 UACME(1)

SYNOPSIS

uacme [-a|--acme-url URL] [-b|--bits BITS] [-c|--confdir DIR] [-d|--days DAYS] [-f|--force] [-h|--hook PROGRAM] [-m|--must-staple] [-n|--never] [-s|--staging] [-t|--type RSA|EC] [-v|--verbose …] [-V|--version] [-y|--yes] [-?|--help] new [EMAIL] | update [EMAIL] | deactivate | newkey | issue DOMAIN [ALTNAME …]] | revoke CERTFILE

DESCRIPTION

uacme is a client for the ACMEv2 protocol described in RFC8555, written in plain C code with minimal dependencies (libcurl and one of GnuTLS, OpenSSL or mbedTLS). The ACMEv2 protocol allows a Certificate Authority (https://letsencrypt.org is a popular one) and an applicant to automate the process of verification and certificate issuance. The protocol also provides facilities for other certificate management functions, such as certificate revocation. For more information see https://tools.ietf.org/html/rfc8555

OPTIONS

-a, --acme-url=URL

ACMEv2 server directory object URL. If not specified uacme uses one of the following:

https://acme-v02.api.letsencrypt.org/directory

production URL

https://acme-staging-v02.api.letsencrypt.org/directory

staging URL (see -s, --staging below)

-b, --bits=BITS

key bit length (default 2048 for RSA, 256 for EC). Only applies to newly generated keys. RSA key length must be a multiple of 8 between 2048 and 8192. EC key length must be either 256 (NID_X9_62_prime256v1 curve) or 384 (NID_secp384r1 curve).

-c, --confdir=CONFDIR

Use configuration directory CONFDIR (default /etc/ssl/uacme). The structure is as follows (multiple DOMAINs allowed)

CONFDIR/private/key.pem

ACME account private key

CONFDIR/private/DOMAIN/key.pem

certificate key for DOMAIN

CONFDIR/DOMAIN/cert.pem

certificate for DOMAIN

-d, --days=DAYS

Do not reissue certificates that are still valid for longer than DAYS (default 30).

-f, --force

Force certificate reissuance regardless of expiration date.

-h, --hook=PROGRAM

Challenge hook program. If not specified uacme interacts with the user for every ACME challenge, printing information about the challenge type, token and authorization on stderr. If specified uacme executes PROGRAM (a binary, a shell script or any file that can be executed by the operating system) for every challenge with the following 5 string arguments:

METHOD

one of begin, done or failed.

begin

is called at the beginning of the challenge. PROGRAM must return 0 to accept it. Any other return code declines the challenge. Neither done nor failed method calls are made for declined challenges.

done

is called upon successful completion of an accepted challenge.

failed

is called upon failure of an accepted challenge.

TYPE

challenge type (for example dns-01 or http-01)

IDENT

The identifier the challenge refers to

TOKEN

The challenge token

AUTH

The key authorization (for dns-01 and tls-alpn-01 already converted to the base64-encoded SHA256 digest format)

-m, --must-staple

Request certificates with the RFC7633 Certificate Status Request TLS Feature Extension, informally also known as "OCSP Must-Staple".

-n, --never-create

By default uacme creates directories/keys if they do not exist. When this option is specified uacme never does so and instead exits with an error if anything required is missing.

-s, --staging

Use Let’s Encrypt staging URL for testing. This only works if -a, --acme-url is NOT specified.

-t, --type=RSA | EC

Key type, either RSA or EC. Only applies to newly generated keys. The bit length can be specified with -b, --bits.

-v, --verbose

By default uacme only produces output upon errors or when user interaction is required. When this option is specified uacme prints information about what is going on on stderr. This option can be specified more than once to increase verbosity.

-V, --version

Print program version on stderr and exit.

-y, --yes

Autoaccept ACME server terms (if any) upon new account creation.

-?, --help

Print a brief usage text on stderr and exit.

USAGE

uacme [OPTIONS …] new [EMAIL]

Create a new ACME account with optional EMAIL contact. If the account private key does not exist at CONFDIR/private/key.pem a new key is generated unless -n, --never-create is specified. A valid account must be created before any other operation can succeed. Any certificate issued by the ACME server is associated with a single account. An account can be associated with multiple certificates, subject of course to the rate limits imposed by the ACME server.

uacme [OPTIONS …] update [EMAIL]

Update the EMAIL associated with the ACME account corresponding to the account private key. If EMAIL is not specified the account contact email is removed.

uacme [OPTIONS …] deactivate

Deactivate the ACME account corresponding to the account private key. WARNING this action is irreversible. Users may wish to do this when the account key is compromised or decommissioned. A deactivated account can no longer request certificate issuances and revocations or access resources related to the account.

uacme [OPTIONS …] newkey

Change the ACME account private key. If the new account private key does not exist at CONFDIR/private/newkey.pem it is generated unless -n, --never-create is specified. The new key is then submitted to the server and if the operation succeeds the old key is hardlinked to CONFDIR/private/key-TIMESTAMP.pem before renaming CONFDIR/private/newkey.pem to CONFDIR/private/key.pem.

uacme [OPTIONS …] issue DOMAIN [ALTNAME …]

Issue a certificate for DOMAIN with zero or more ALTNAMEs. If a certificate is already available at CONFDIR/DOMAIN/cert.pem for the specified DOMAIN and ALTNAMEs and is still valid for longer than DAYS no action is taken unless -f, --force is specified. The new certificate is saved to CONFDIR/DOMAIN/cert.pem. If the certificate file already exists it is hardlinked to CONFDIR/DOMAIN/cert-TIMESTAMP.pem before overwriting. The private key for the certificate is loaded from CONFDIR/private/DOMAIN/key.pem. If no such file exists, a new key is generated unless -n, --never-create is specified. Wildcard DOMAINs or ALTNAMEs are dealt with correctly, as long as the ACME server supports them; note that any such wildcards are automatically removed from the configuration subdirectory name: for example a certificate for *.test.com is saved to CONFDIR/test.com/cert.pem.

uacme [OPTIONS …] revoke CERTFILE

Revoke the certificate stored in CERTFILE. Only certificates associated with the account can be revoked. If successful CERTFILE is renamed to revoked-TIMESTAMP.pem.

EXIT STATUS

0

Success

1

Certificate not reissued because it is still current

2

Failure (syntax or usage error; configuration error; processing failure; unexpected error).

EXAMPLE HOOK SCRIPT

The uacme.sh hook script included in the distribution can be used to automate the certificate issuance with http-01 challenges, provided a web server for the domain being validated runs on the same machine, with webroot at /var/www

#!/bin/sh
CHALLENGE_PATH=/var/www/.well-known/acme-challenge
ARGS=5
E_BADARGS=85
if test $# -ne "$ARGS"
then
    echo "Usage: $(basename "$0") method type ident token auth" 1>&2
    exit $E_BADARGS
fi
METHOD=$1
TYPE=$2
IDENT=$3
TOKEN=$4
AUTH=$5
case "$METHOD" in
    "begin")
        case "$TYPE" in
            http-01)
                echo -n "${AUTH}" > "${CHALLENGE_PATH}/${TOKEN}"
                exit $?
                ;;
            *)
                exit 1
                ;;
        esac
        ;;
"done"|"failed")
    case "$TYPE" in
        http-01)
            rm "${CHALLENGE_PATH}/${TOKEN}"
            exit $?
            ;;
        *)
            exit 1
            ;;
    esac
    ;;
    *)
        echo "$0: invalid method" 1>&2
        exit 1
esac

BUGS

If you believe you have found a bug, please create a new issue at https://github.com/ndilieto/uacme/issues with any applicable information.

AUTHOR

uacme was written by Nicola Di Lieto

COPYRIGHT

Copyright © 2019,2020 Nicola Di Lieto <nicola.dilieto@gmail.com>

This file is part of uacme.

uacme is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

uacme is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see http://www.gnu.org/licenses/.

uacme-1.0.22/uacme.c0000644000000000000000000013713713611643512011031 00000000000000/* * Copyright (C) 2019,2020 Nicola Di Lieto * * This file is part of uacme. * * uacme is free software: you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * uacme is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see * . */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "base64.h" #include "curlwrap.h" #include "crypto.h" #include "json.h" #include "msg.h" #define PRODUCTION_URL "https://acme-v02.api.letsencrypt.org/directory" #define STAGING_URL "https://acme-staging-v02.api.letsencrypt.org/directory" #define DEFAULT_CONFDIR "/etc/ssl/uacme" typedef struct acme { privkey_t key; privkey_t dkey; json_value_t *json; json_value_t *account; json_value_t *dir; json_value_t *order; char *nonce; char *kid; char *headers; char *body; char *type; const char *directory; const char *hook; const char *email; const char *domain; const char * const *names; const char *confdir; char *keydir; char *dkeydir; char *certdir; } acme_t; char *find_header(const char *headers, const char *name) { char *regex = NULL; if (asprintf(®ex, "^%s:[ \t]*(.*)\r\n", name) < 0) { warnx("find_header: asprintf failed"); return NULL; } char *ret = NULL; regex_t reg; if (regcomp(®, regex, REG_EXTENDED | REG_ICASE | REG_NEWLINE)) { warnx("find_header: regcomp failed"); } else { regmatch_t m[2]; if (regexec(®, headers, 2, m, 0) == 0) { ret = strndup(headers + m[1].rm_so, m[1].rm_eo - m[1].rm_so); if (!ret) { warn("find_header: strndup failed"); } } } free(regex); regfree(®); return ret; } int acme_get(acme_t *a, const char *url) { int ret = 0; json_free(a->json); a->json = NULL; free(a->headers); a->headers = NULL; free(a->body); a->body = NULL; free(a->type); a->type = NULL; if (!url) { warnx("acme_get: invalid URL"); goto out; } if (g_loglevel > 1) { warnx("acme_get: url=%s", url); } curldata_t *c = curl_get(url); if (!c) { warnx("acme_get: curl_get failed"); goto out; } free(a->nonce); a->nonce = find_header(c->headers, "Replay-Nonce"); a->type = find_header(c->headers, "Content-Type"); if (a->type && strstr(a->type, "json")) { a->json = json_parse(c->body, c->body_len); } a->headers = c->headers; c->headers = NULL; a->body = c->body; c->body = NULL; ret = c->code; curldata_free(c); out: if (g_loglevel > 2) { if (a->headers) { warnx("acme_get: HTTP headers\n%s", a->headers); } if (a->body) { warnx("acme_get: HTTP body\n%s", a->body); } } if (g_loglevel > 1) { if (a->json) { warnx("acme_get: return code %d, json=", ret); json_dump(stderr, a->json); } else { warnx("acme_get: return code %d", ret); } } if (!a->headers) a->headers = strdup(""); if (!a->body) a->body = strdup(""); if (!a->type) a->type = strdup(""); return ret; } int acme_post(acme_t *a, const char *url, const char *format, ...) { int ret = 0; char *payload = NULL; char *protected = NULL; char *jws = NULL; if (!url) { warnx("acme_post: invalid URL"); return 0; } if (!a->nonce) { warnx("acme_post: need a nonce first"); return 0; } va_list ap; va_start(ap, format); if (vasprintf(&payload, format, ap) < 0) { payload = NULL; } va_end(ap); if (!payload) { warnx("acme_post: vasprintf failed"); return 0; } for (int retry = 0; a->nonce && retry < 3; retry++) { if (retry > 0) { msg(1, "acme_post: server rejected nonce, retrying"); } json_free(a->json); a->json = NULL; free(a->headers); a->headers = NULL; free(a->body); a->body = NULL; free(a->type); a->type = NULL; protected = (a->kid && *a->kid) ? jws_protected_kid(a->nonce, url, a->kid, a->key) : jws_protected_jwk(a->nonce, url, a->key); if (!protected) { warnx("acme_post: jws_protected_xxx failed"); goto out; } jws = jws_encode(protected, payload, a->key); if (!jws) { warnx("acme_post: jws_encode failed"); goto out; } if (g_loglevel > 2) { warnx("acme_post: url=%s payload=%s " "protected=%s jws=%s", url, payload, protected, jws); } else if (g_loglevel > 1) { warnx("acme_post: url=%s payload=%s", url, payload); } curldata_t *c = curl_post(url, jws); if (!c) { warnx("acme_post: curl_post failed"); goto out; } free(a->nonce); a->nonce = find_header(c->headers, "Replay-Nonce"); a->type = find_header(c->headers, "Content-Type"); if (a->type && strstr(a->type, "json")) { a->json = json_parse(c->body, c->body_len); } a->headers = c->headers; c->headers = NULL; a->body = c->body; c->body = NULL; ret = c->code; curldata_free(c); if (g_loglevel > 2) { if (a->headers) { warnx("acme_post: HTTP headers:\n%s", a->headers); } if (a->body) { warnx("acme_post: HTTP body:\n%s", a->body); } } if (g_loglevel > 1) { if (a->json) { warnx("acme_post: return code %d, json=", ret); json_dump(stderr, a->json); } else { warnx("acme_post: return code %d", ret); } } if (ret != 400 || !a->type || !a->nonce || !a->json || 0 != strcasecmp(a->type, "application/problem+json") || 0 != json_compare_string(a->json, "type", "urn:ietf:params:acme:error:badNonce")) { break; } } out: free(payload); free(protected); free(jws); if (!a->headers) a->headers = strdup(""); if (!a->body) a->body = strdup(""); if (!a->type) a->type = strdup(""); return ret; } int hook_run(const char *prog, const char *method, const char *type, const char *ident, const char *token, const char *auth) { int ret = -1; pid_t pid = fork(); if (pid < 0) { warn("hook_run: fork failed"); } else if (pid > 0) // parent { int status; if (waitpid(pid, &status, 0) < 0) { warn("hook_run: waitpid failed"); } else if (WIFEXITED(status)) { ret = WEXITSTATUS(status); } else { warnx("hook_run: %s terminated abnormally", prog); } } else // child { if (execl(prog, prog, method, type, ident, token, auth, (char *)NULL) < 0) { warn("hook_run: failed to execute %s", prog); abort(); } } return ret; } bool check_or_mkdir(bool allow_create, const char *dir, mode_t mode) { if (access(dir, F_OK) < 0) { if (!allow_create) { warnx("failed to access %s", dir); return false; } if (mkdir(dir, mode) < 0) { warn("failed to create %s", dir); return false; } msg(1, "created directory %s", dir); } struct stat st; if (stat(dir, &st) != 0) { warn("failed to stat %s", dir); return false; } if (!S_ISDIR(st.st_mode)) { warnx("%s is not a directory", dir); return false; } return true; } char *identifiers(const char * const *names) { char *ids = NULL; char *tmp = NULL; if (asprintf(&tmp, "{\"identifiers\":[") < 0) { warnx("identifiers: asprintf failed"); return NULL; } while (names && *names) { if (asprintf(&ids, "%s{\"type\":\"dns\",\"value\":\"%s\"},", tmp, *(names++)) < 0) { warnx("identifiers: asprintf failed"); free(tmp); return NULL; } free(tmp); tmp = ids; ids = NULL; } tmp[strlen(tmp)-1] = 0; if (asprintf(&ids, "%s]}", tmp) < 0) { warnx("identifiers: asprintf failed"); ids = NULL; } free(tmp); return ids; } bool acme_error(acme_t *a) { if (!a->json) return false; if (a->type && strcasecmp(a->type, "application/problem+json") == 0) { warnx("the server reported the following error:"); json_dump(stderr, a->json); return true; } const json_value_t *e = json_find(a->json, "error"); if (e && e->type == JSON_OBJECT) { warnx("the server reported the following error:"); json_dump(stderr, e); return true; } return false; } bool acme_bootstrap(acme_t *a) { msg(1, "fetching directory at %s", a->directory); if (200 != acme_get(a, a->directory)) { warnx("failed to fetch directory at %s", a->directory); acme_error(a); return false; } else if (acme_error(a)) { return false; } a->dir = a->json; a->json = NULL; const char *url = json_find_string(a->dir, "newNonce"); if (!url) { warnx("failed to find newNonce URL in directory"); return false; } msg(2, "fetching new nonce at %s", url); if (204 != acme_get(a, url)) { warnx("failed to fetch new nonce at %s", url); acme_error(a); return false; } else if (acme_error(a)) { return false; } return true; } bool account_new(acme_t *a, bool yes) { const char *url = json_find_string(a->dir, "newAccount"); if (!url) { warnx("failed to find newAccount URL in directory"); return false; } msg(1, "creating new account at %s", url); switch (acme_post(a, url, "{\"onlyReturnExisting\":true}")) { case 200: if (!(a->kid = find_header(a->headers, "Location"))) { warnx("account exists but location not found"); return false; } warnx("Account already exists at %s", a->kid); return false; case 400: if (a->json && a->type && 0 == strcasecmp(a->type, "application/problem+json") && 0 == json_compare_string(a->json, "type", "urn:ietf:params:acme:error:accountDoesNotExist")) { const json_value_t *meta = json_find(a->dir, "meta"); const char *terms = json_find_string(meta, "termsOfService"); if (terms) { if (yes) { msg(0, "terms at %s autoaccepted (-y)", terms); } else { char c = 0; msg(0, "type 'y' to accept the terms at %s", terms); if (scanf(" %c", &c) != 1 || tolower(c) != 'y') { warnx("terms not agreed to, aborted"); return false; } } } int r = 0; if (a->email && strlen(a->email)) { r = acme_post(a, url, "{\"termsOfServiceAgreed\":true" ",\"contact\": [\"mailto:%s\"]}", a->email); } else { r = acme_post(a, url, "{\"termsOfServiceAgreed\":true}"); } if (r == 201) { if (acme_error(a)) { return false; } if (json_compare_string(a->json, "status", "valid")) { const char* status = json_find_string(a->json, "status"); warnx("account created but status is not valid (%s)", status ? status : "unknown"); return false; } if (!(a->kid = find_header(a->headers, "Location"))) { warnx("account created but location not found"); return false; } msg(1, "account created at %s", a->kid); return true; } } // intentional fallthrough default: warnx("failed to create account at %s", url); acme_error(a); return false; } } bool account_retrieve(acme_t *a) { const char *url = json_find_string(a->dir, "newAccount"); if (!url) { warnx("failed to find newAccount URL in directory"); return false; } msg(1, "retrieving account at %s", url); switch (acme_post(a, url, "{\"onlyReturnExisting\":true}")) { case 200: if (acme_error(a)) { return false; } break; case 400: if (a->json && a->type && 0 == strcasecmp(a->type, "application/problem+json") && 0 == json_compare_string(a->json, "type", "urn:ietf:params:acme:error:accountDoesNotExist")) { warnx("no account associated with %s/key.pem found at %s. " "Consider trying 'new'", a->keydir, url); return false; } // intentional fallthrough default: warnx("failed to retrieve account at %s", url); acme_error(a); return false; } const char* status = json_find_string(a->json, "status"); if (status && strcmp(status, "valid")) { warnx("invalid account status (%s)", status); return false; } if (!(a->kid = find_header(a->headers, "Location"))) { warnx("account location not found"); return false; } msg(1, "account location: %s", a->kid); a->account = a->json; a->json = NULL; return true; } bool account_update(acme_t *a) { bool email_update = false; const json_value_t *contacts = json_find(a->account, "contact"); if (contacts && contacts->type != JSON_ARRAY) { warnx("failed to parse account contacts"); return false; } if (a->email && strlen(a->email) > 0) { if (!contacts || contacts->v.array.size == 0) { email_update = true; } else for (size_t i=0; iv.array.size; i++) { if (contacts->v.array.values[i].type != JSON_STRING || contacts->v.array.values[i].v.value != strcasestr(contacts->v.array.values[i].v.value, "mailto:")) { warnx("failed to parse account contacts"); return false; } if (strcasecmp(contacts->v.array.values[i].v.value + strlen("mailto:"), a->email)) { email_update = true; } } } else if (contacts && contacts->v.array.size > 0) { email_update = true; } if (email_update) { int ret = 0; if (a->email && strlen(a->email) > 0) { msg(1, "updating account email to %s at %s", a->email, a->kid); ret = acme_post(a, a->kid, "{\"contact\": [\"mailto:%s\"]}", a->email); } else { msg(1, "removing account email at %s", a->kid); ret = acme_post(a, a->kid, "{\"contact\": []}"); } if (ret != 200) { warnx("failed to update account email at %s", a->kid); acme_error(a); return false; } else if (acme_error(a)) { return false; } msg(1, "account at %s updated", a->kid); } else { msg(1, "email is already up to date for account at %s", a->kid); } return true; } bool account_keychange(acme_t *a, bool never, keytype_t type, int bits) { bool success = false; privkey_t newkey = NULL; char *newkeyfile = NULL; char *keyfile = NULL; char *bakfile = NULL; char *protected = NULL; char *payload = NULL; char *jwk = NULL; char *jws = NULL; const char *url = json_find_string(a->dir, "keyChange"); if (!url) { warnx("account_keychange: failed to find keyChange URL in directory"); goto out; } if (asprintf(&keyfile, "%s/key.pem", a->keydir) < 0) { warnx("account_keychange: asprintf failed"); keyfile = NULL; goto out; } if (asprintf(&bakfile, "%s/key-%llu.pem", a->keydir, (unsigned long long)time(NULL)) < 0) { warnx("account_keychange: asprintf failed"); bakfile = NULL; goto out; } if (asprintf(&newkeyfile, "%s/newkey.pem", a->keydir) < 0) { warnx("account_keychange: asprintf failed"); newkeyfile = NULL; goto out; } newkey = key_load(never ? PK_NONE : type, bits, newkeyfile); if (!newkey) { goto out; } protected = jws_protected_jwk(NULL, url, newkey); if (!protected) { warnx("account_keychange: jws_protected_jwk failed"); goto out; } jwk = jws_jwk(a->key, NULL, NULL); if (!jwk) { warnx("account_keychange: jws_jwk failed"); goto out; } if (asprintf(&payload, "{\"account\":\"%s\",\"oldKey\":%s}", a->kid, jwk) < 0) { warnx("account_keychange: jws_jwk failed"); goto out; } jws = jws_encode(protected, payload, newkey); if (!jws) { warnx("account_keychange: jws_encode failed"); goto out; } if (g_loglevel > 2) { warnx("account_keychange: url=%s payload=%s protected=%s jws=%s", url, payload, protected, jws); } else if (g_loglevel > 1) { warnx("account_keychange: url=%s payload=%s", url, payload); } msg(1, "changing account key at %s", url); if (200 != acme_post(a, url, jws)) { warnx("failed to change account key at %s", url); acme_error(a); goto out; } else if (acme_error(a)) { goto out; } msg(1, "backing up %s as %s", keyfile, bakfile); if (link(keyfile, bakfile) < 0) { warn("failed to link %s to %s", bakfile, keyfile); } else { msg(1, "renaming %s to %s", newkeyfile, keyfile); if (rename(newkeyfile, keyfile) < 0) { warn("failed to rename %s to %s", newkeyfile, keyfile); unlink(bakfile); } else { msg(1, "account key changed"); success = true; } } if (!success) { warnx("WARNING: account key changed but %s NOT replaced by %s", keyfile, newkeyfile); goto out; } out: if (newkey) privkey_deinit(newkey); free(newkeyfile); free(keyfile); free(bakfile); free(protected); free(payload); free(jwk); free(jws); return success; } bool account_deactivate(acme_t *a) { msg(1, "deactivating account at %s", a->kid); if (200 != acme_post(a, a->kid, "{\"status\": \"deactivated\"}")) { warnx("failed to deactivate account at %s", a->kid); acme_error(a); return false; } else if (acme_error(a)) { return false; } msg(1, "account at %s deactivated", a->kid); return true; } bool authorize(acme_t *a) { bool success = false; char *thumbprint = NULL; json_value_t *auth = NULL; const json_value_t *auths = json_find(a->order, "authorizations"); if (!auths || auths->type != JSON_ARRAY) { warnx("failed to parse authorizations URL"); goto out; } thumbprint = jws_thumbprint(a->key); if (!thumbprint) { goto out; } for (size_t i=0; iv.array.size; i++) { if (auths->v.array.values[i].type != JSON_STRING) { warnx("failed to parse authorizations URL"); goto out; } msg(1, "retrieving authorization at %s", auths->v.array.values[i].v.value); if (200 != acme_post(a, auths->v.array.values[i].v.value, "")) { warnx("failed to retrieve auth %s", auths->v.array.values[i].v.value); acme_error(a); goto out; } const char *status = json_find_string(a->json, "status"); if (status && strcmp(status, "valid") == 0) { continue; } if (!status || strcmp(status, "pending") != 0) { warnx("unexpected auth status (%s) at %s", status ? status : "unknown", auths->v.array.values[i].v.value); acme_error(a); goto out; } const json_value_t *ident = json_find(a->json, "identifier"); if (json_compare_string(ident, "type", "dns") != 0) { warnx("no valid identifier in auth %s", auths->v.array.values[i].v.value); goto out; } const char *ident_value = json_find_string(ident, "value"); if (!ident_value || strlen(ident_value) <= 0) { warnx("no valid identifier in auth %s", auths->v.array.values[i].v.value); goto out; } const json_value_t *chlgs = json_find(a->json, "challenges"); if (!chlgs || chlgs->type != JSON_ARRAY) { warnx("no challenges in auth %s", auths->v.array.values[i].v.value); goto out; } json_free(auth); auth = a->json; a->json = NULL; bool chlg_done = false; for (size_t j=0; jv.array.size && !chlg_done; j++) { const char *status = json_find_string( chlgs->v.array.values+j, "status"); if (status && (strcmp(status, "pending") == 0 || strcmp(status, "processing") == 0)) { const char *url = json_find_string( chlgs->v.array.values+j, "url"); const char *type = json_find_string( chlgs->v.array.values+j, "type"); const char *token = json_find_string( chlgs->v.array.values+j, "token"); char *key_auth = NULL; if (!type || !url || !token) { warnx("failed to parse challenge"); goto out; } if (strcmp(type, "dns-01") == 0 || strcmp(type, "tls-alpn-01") == 0) { key_auth = sha2_base64url(256, "%s.%s", token, thumbprint); } else if (asprintf(&key_auth, "%s.%s", token, thumbprint) < 0) { key_auth = NULL; } if (!key_auth) { warnx("failed to generate authorization key"); goto out; } if (a->hook && strlen(a->hook) > 0) { msg(2, "type=%s", type); msg(2, "ident=%s", ident_value); msg(2, "token=%s", token); msg(2, "key_auth=%s", key_auth); msg(1, "running %s %s %s %s %s %s", a->hook, "begin", type, ident_value, token, key_auth); int r = hook_run(a->hook, "begin", type, ident_value, token, key_auth); msg(2, "hook returned %d", r); if (r < 0) { free(key_auth); goto out; } else if (r > 0) { msg(1, "challenge %s declined", type); free(key_auth); continue; } } else { char c = 0; msg(0, "challenge=%s ident=%s token=%s key_auth=%s", type, ident_value, token, key_auth); msg(0, "type 'y' to accept challenge, anything else to skip"); if (scanf(" %c", &c) != 1 || tolower(c) != 'y') { free(key_auth); continue; } } msg(1, "starting challenge at %s", url); if (200 != acme_post(a, url, "{}")) { warnx("failed to start challenge at %s", url); acme_error(a); } else while (!chlg_done) { msg(1, "polling challenge status at %s", url); if (200 != acme_post(a, url, "")) { warnx("failed to poll challenge status at %s", url); acme_error(a); break; } const char *status = json_find_string(a->json, "status"); if (status && strcmp(status, "valid") == 0) { chlg_done = true; } else if (!status || (strcmp(status, "processing") != 0 && strcmp(status, "pending") != 0)) { warnx("challenge %s failed with status %s", url, status ? status : "unknown"); acme_error(a); break; } else { msg(2, "challenge %s, waiting 5 seconds", status); sleep(5); } } if (a->hook && strlen(a->hook) > 0) { const char *method = chlg_done ? "done" : "failed"; msg(1, "running %s %s %s %s %s %s", a->hook, method, type, ident_value, token, key_auth); hook_run(a->hook, method, type, ident_value, token, key_auth); } free(key_auth); if (!chlg_done) { goto out; } } } if (!chlg_done) { warnx("no challenge completed"); goto out; } } success = true; out: json_free(auth); free(thumbprint); return success; } bool cert_issue(acme_t *a, bool status_req) { bool success = false; char *csr = NULL; char *orderurl = NULL; char *certfile = NULL; char *bakfile = NULL; char *tmpfile = NULL; time_t t = time(NULL); int fd = -1; char *ids = identifiers(a->names); if (!ids) { warnx("failed to process alternate names"); goto out; } const char *url = json_find_string(a->dir, "newOrder"); if (!url) { warnx("failed to find newOrder URL in directory"); goto out; } msg(1, "creating new order for %s at %s", a->domain, url); if (201 != acme_post(a, url, ids)) { warnx("failed to create new order at %s", url); acme_error(a); goto out; } const char *status = json_find_string(a->json, "status"); if (!status || (strcmp(status, "pending") && strcmp(status, "ready"))) { warnx("invalid order status (%s)", status ? status : "unknown"); acme_error(a); goto out; } orderurl = find_header(a->headers, "Location"); if (!orderurl) { warnx("order location not found"); goto out; } msg(1, "order URL: %s", orderurl); a->order = a->json; a->json = NULL; if (strcmp(status, "ready") != 0) { if (!authorize(a)) { warnx("failed to authorize order at %s", orderurl); goto out; } while (1) { msg(1, "polling order status at %s", orderurl); if (200 != acme_post(a, orderurl, "")) { warnx("failed to poll order status at %s", orderurl); acme_error(a); goto out; } status = json_find_string(a->json, "status"); if (status && strcmp(status, "ready") == 0) { json_free(a->order); a->order = a->json; a->json = NULL; break; } else if (!status || strcmp(status, "pending") != 0) { warnx("unexpected order status (%s) at %s", status ? status : "unknown", orderurl); acme_error(a); goto out; } else { msg(2, "order pending, waiting 5 seconds"); sleep(5); } } } msg(1, "generating certificate request"); csr = csr_gen(a->names, status_req, a->dkey); if (!csr) { warnx("failed to generate certificate signing request"); goto out; } const char *finalize = json_find_string(a->order, "finalize"); if (!finalize) { warnx("failed to find finalize URL"); goto out; } msg(1, "finalizing order at %s", finalize); if (200 != acme_post(a, finalize, "{\"csr\": \"%s\"}", csr)) { warnx("failed to finalize order at %s", finalize); acme_error(a); goto out; } else if (acme_error(a)) { goto out; } while (1) { msg(1, "polling order status at %s", orderurl); if (200 != acme_post(a, orderurl, "")) { warnx("failed to poll order status at %s", orderurl); acme_error(a); goto out; } status = json_find_string(a->json, "status"); if (status && strcmp(status, "valid") == 0) { json_free(a->order); a->order = a->json; a->json = NULL; break; } else if (!status || strcmp(status, "processing") != 0) { warnx("unexpected order status (%s) at %s", status ? status : "unknown", orderurl); acme_error(a); goto out; } else { msg(2, "order processing, waiting 5 seconds"); sleep(5); } } const char *certurl = json_find_string(a->order, "certificate"); if (!certurl) { warnx("failed to parse certificate url"); goto out; } msg(1, "retrieving certificate at %s", certurl); if (200 != acme_post(a, certurl, "")) { warnx("failed to retrieve certificate at %s", certurl); acme_error(a); goto out; } else if (acme_error(a)) { goto out; } if (asprintf(&certfile, "%s/cert.pem", a->certdir) < 0) { certfile = NULL; warnx("cert_issue: vasprintf failed"); goto out; } if (asprintf(&tmpfile, "%s/cert.pem.tmp", a->certdir) < 0) { tmpfile = NULL; warnx("cert_issue: vasprintf failed"); goto out; } if (asprintf(&bakfile, "%s/cert-%llu.pem", a->certdir, (unsigned long long)t) < 0) { bakfile = NULL; warnx("cert_issue: vasprintf failed"); goto out; } msg(1, "saving certificate to %s", tmpfile); fd = open(tmpfile, O_WRONLY|O_CREAT|O_TRUNC, S_IRUSR|S_IRGRP|S_IROTH); if (fd < 0) { warn("failed to create %s", tmpfile); goto out; } if (write(fd, a->body, strlen(a->body)) != (ssize_t)strlen(a->body)) { warn("failed to write to %s", tmpfile); goto out; } if (close(fd) < 0) { warn("failed to close %s", tmpfile); goto out; } else { fd = -1; } if (link(certfile, bakfile) < 0) { if (errno != ENOENT) { warn("failed to link %s to %s", bakfile, certfile); goto out; } } else { msg(1, "backed up %s as %s", certfile, bakfile); } msg(1, "renaming %s to %s", tmpfile, certfile); if (rename(tmpfile, certfile) < 0) { warn("failed to rename %s to %s", tmpfile, certfile); unlink(bakfile); goto out; } success = true; out: if (fd >= 0) close(fd); free(bakfile); free(tmpfile); free(certfile); free(csr); free(ids); free(orderurl); return success; } bool cert_revoke(acme_t *a, const char *certfile, int reason_code) { bool success = false; char *certfiledup = NULL; char *revokedfile = NULL; const char *url = NULL; char *crt = cert_der_base64url(certfile); if (!crt) { warnx("failed to load %s", certfile); goto out; } url = json_find_string(a->dir, "revokeCert"); if (!url) { warnx("failed to find revokeCert URL in directory"); goto out; } msg(1, "revoking %s at %s", certfile, url); if (200 != acme_post(a, url, "{\"certificate\":\"%s\",\"reason\":%d}", crt, reason_code)) { warnx("failed to revoke %s at %s", certfile, url); acme_error(a); goto out; } else if (acme_error(a)) { goto out; } msg(1, "revoked %s", certfile); certfiledup = strdup(certfile); if (!certfiledup) { warnx("strdup failed"); certfiledup = NULL; goto out; } if (asprintf(&revokedfile, "%s/revoked-%llu.pem", dirname(certfiledup), (unsigned long long)time(NULL)) < 0) { warnx("asprintf failed"); revokedfile = NULL; goto out; } msg(1, "renaming %s to %s", certfile, revokedfile); if (rename(certfile, revokedfile) < 0) { warn("failed to rename %s to %s", certfile, revokedfile); } success = true; out: free(crt); free(revokedfile); free(certfiledup); return success; } bool validate_domain_str(const char *s) { size_t len = 0; for (size_t j = 0; j < strlen(s); j++) { switch (s[j]) { case '.': if (j == 0) { warnx("'.' not allowed at beginning in %s", s); return false; } // intentional fallthrough case '_': case '-': len++; continue; case '*': if (j != 0 || s[1] != '.') { warnx("'*.' only allowed at beginning in %s", s); return false; } break; default: if (!isupper(s[j]) && !islower(s[j]) && !isdigit(s[j])) { warnx("invalid character '%c' in %s", s[j], s); return false; } len++; } } if (len == 0) { warnx("empty name is not allowed"); return false; } return true; } void usage(const char *progname) { fprintf(stderr, "usage: %s [-a|--acme-url URL] [-b|--bits BITS] [-c|--confdir DIR]\n" "\t[-d|--days DAYS] [-f|--force] [-h|--hook PROGRAM] [-m|--must-staple]\n" "\t[-n|--never-create] [-s|--staging] [-t|--type RSA | EC]\n" "\t[-v|--verbose ...] [-V|--version] [-y|--yes] [-?|--help]\n" "\tnew [EMAIL] | update [EMAIL] | deactivate | newkey |\n" "\tissue DOMAIN [ALTNAME ...]] | revoke CERTFILE\n", progname); } int main(int argc, char **argv) { static struct option options[] = { {"acme-url", required_argument, NULL, 'a'}, {"bits", required_argument, NULL, 'b'}, {"confdir", required_argument, NULL, 'c'}, {"days", required_argument, NULL, 'd'}, {"force", no_argument, NULL, 'f'}, {"help", no_argument, NULL, '?'}, {"hook", required_argument, NULL, 'h'}, {"must-staple", no_argument, NULL, 'm'}, {"never-create", no_argument, NULL, 'n'}, {"staging", no_argument, NULL, 's'}, {"type", required_argument, NULL, 't'}, {"verbose", no_argument, NULL, 'v'}, {"version", no_argument, NULL, 'V'}, {"yes", no_argument, NULL, 'y'}, {NULL, 0, NULL, 0} }; int ret = 2; bool never = false; bool force = false; bool version = false; bool yes = false; bool staging = false; bool custom_directory = false; bool status_req = false; int days = 30; int bits = 0; keytype_t type = PK_RSA; const char *filename = NULL; acme_t a; memset(&a, 0, sizeof(a)); a.directory = PRODUCTION_URL; a.confdir = DEFAULT_CONFDIR; if (argc < 2) { usage(basename(argv[0])); return ret; } #if LIBCURL_VERSION_NUM < 0x072600 #error libcurl version 7.38.0 or later is required #endif const curl_version_info_data *cvid = curl_version_info(CURLVERSION_NOW); if (!cvid || cvid->version_num < 0x072600) { warnx("libcurl version 7.38.0 or later is required"); return ret; } if (curl_global_init(CURL_GLOBAL_DEFAULT) != CURLE_OK) { warnx("failed to initialize libcurl"); return ret; } if (!crypto_init()) { warnx("failed to initialize crypto library"); curl_global_cleanup(); return ret; } while (1) { char *endptr; int option_index; int c = getopt_long(argc, argv, "a:b:c:d:f?h:mnst:vVy", options, &option_index); if (c == -1) break; switch (c) { case 'a': if (staging) { warnx("-a,--acme-url is incompatible with -s,--staging"); goto out; } custom_directory = true; a.directory = optarg; break; case 'b': bits = strtol(optarg, &endptr, 10); if (*endptr != 0 || bits <= 0) { warnx("BITS must be a positive integer"); goto out; } break; case 'c': a.confdir = optarg; break; case 'd': days = strtol(optarg, &endptr, 10); if (*endptr != 0 || days <= 0) { warnx("DAYS must be a positive integer"); goto out; } break; case 'f': force = true; break; case 'h': a.hook = optarg; break; case 'm': status_req = true; break; case 'n': never = true; break; case 'v': g_loglevel++; break; case 's': if (custom_directory) { warnx("-s,--staging is incompatible with -a,--acme-url"); goto out; } staging = true; a.directory = STAGING_URL; break; case 't': if (strcasecmp(optarg, "RSA") == 0) { type = PK_RSA; } else if (strcasecmp(optarg, "EC") == 0) { type = PK_EC; } else { warnx("type must be either RSA or EC"); goto out; } break; case 'V': version = true; break; case 'y': yes = true; break; default: usage(basename(argv[0])); goto out; } } if (version) { msg(0, "version " VERSION); goto out; } switch (type) { case PK_RSA: if (bits == 0) { bits = 2048; } else if (bits < 2048 || bits > 8192) { warnx("BITS must be between 2048 and 8192 for RSA keys"); goto out; } else if (bits & 7) { warnx("BITS must be a multiple of 8 for RSA keys"); goto out; } break; case PK_EC: switch (bits) { case 0: bits = 256; break; case 256: case 384: break; default: warnx("BITS must be either 256 or 384 for EC keys"); goto out; } break; default: warnx("key type must be either RSA or EC"); goto out; } if (optind == argc) { usage(basename(argv[0])); goto out; } const char *action = argv[optind++]; if (strcmp(action, "new") == 0 || strcmp(action, "update") == 0) { if (optind < argc) { a.email = argv[optind++]; } if (optind < argc) { usage(basename(argv[0])); goto out; } } else if (strcmp(action, "newkey") == 0 || strcmp(action, "deactivate") == 0) { if (optind < argc) { usage(basename(argv[0])); goto out; } } else if (strcmp(action, "issue") == 0) { if (optind == argc) { usage(basename(argv[0])); goto out; } a.names = (const char * const *)argv + optind; for (const char * const *name = a.names; *name; name++) { if (!validate_domain_str(*name)) { goto out; } } a.domain = a.names[0]; if (a.domain[0] == '*' && a.domain[1] == '.') { a.domain += 2; } } else if (strcmp(action, "revoke") == 0) { if (optind == argc) { usage(basename(argv[0])); goto out; } filename = argv[optind++]; if (optind < argc) { usage(basename(argv[0])); goto out; } if (access(filename, R_OK)) { warn("failed to read %s", filename); goto out; } } else { usage(basename(argv[0])); goto out; } time_t now = time(NULL); char buf[0x100]; setlocale(LC_TIME, "C"); strftime(buf, sizeof(buf), "%a, %d %b %Y %H:%M:%S %z", localtime(&now)); msg(1, "version " PACKAGE_VERSION " starting on %s", buf); if (a.hook && access(a.hook, R_OK | X_OK) < 0) { warn("%s", a.hook); goto out; } if (asprintf(&a.keydir, "%s/private", a.confdir) < 0) { a.keydir = NULL; warnx("asprintf failed"); goto out; } if (a.domain) { if (asprintf(&a.dkeydir, "%s/private/%s", a.confdir, a.domain) < 0) { a.dkeydir = NULL; warnx("asprintf failed"); goto out; } if (asprintf(&a.certdir, "%s/%s", a.confdir, a.domain) < 0) { a.certdir = NULL; warnx("asprintf failed"); goto out; } } bool is_new = strcmp(action, "new") == 0; if (!check_or_mkdir(is_new && !never, a.confdir, S_IRWXU|S_IRGRP|S_IXGRP|S_IROTH|S_IXOTH)) { goto out; } if (!check_or_mkdir(is_new && !never, a.keydir, S_IRWXU)) { goto out; } if (!(a.key = key_load((!is_new || never) ? PK_NONE : type, bits, "%s/key.pem", a.keydir))) { goto out; } if (strcmp(action, "new") == 0) { if (acme_bootstrap(&a) && account_new(&a, yes)) { ret = 0; } } else if (strcmp(action, "update") == 0) { if (acme_bootstrap(&a) && account_retrieve(&a) && account_update(&a)) { ret = 0; } } else if (strcmp(action, "newkey") == 0) { if (acme_bootstrap(&a) && account_retrieve(&a) && account_keychange(&a, never, type, bits)) { ret = 0; } } else if (strcmp(action, "deactivate") == 0) { if (acme_bootstrap(&a) && account_retrieve(&a) && account_deactivate(&a)) { ret = 0; } } else if (strcmp(action, "issue") == 0) { if (!check_or_mkdir(!never, a.dkeydir, S_IRWXU)) { goto out; } if (!check_or_mkdir(!never, a.certdir, S_IRWXU|S_IRGRP|S_IXGRP|S_IROTH|S_IXOTH)) { goto out; } if (!(a.dkey = key_load(never ? PK_NONE : type, bits, "%s/key.pem", a.dkeydir))) { goto out; } msg(1, "checking existence and expiration of %s/cert.pem", a.certdir); if (cert_valid(a.certdir, a.names, days)) { if (force) { msg(1, "forcing reissue of %s/cert.pem", a.certdir); } else { msg(1, "skipping %s/cert.pem", a.certdir); ret = 1; goto out; } } if (acme_bootstrap(&a) && account_retrieve(&a) && cert_issue(&a, status_req)) { ret = 0; } } else if (strcmp(action, "revoke") == 0) { if (acme_bootstrap(&a) && account_retrieve(&a) && cert_revoke(&a, filename, 0)) { ret = 0; } } out: if (a.key) privkey_deinit(a.key); if (a.dkey) privkey_deinit(a.dkey); json_free(a.json); json_free(a.account); json_free(a.dir); json_free(a.order); free(a.nonce); free(a.kid); free(a.headers); free(a.body); free(a.type); free(a.keydir); free(a.dkeydir); free(a.certdir); crypto_deinit(); curl_global_cleanup(); exit(ret); } uacme-1.0.22/configure0000755000000000000000000070516613615240514011504 00000000000000#! /bin/sh # Guess values for system-dependent variables and create Makefiles. # Generated by GNU Autoconf 2.69 for uacme 1.0.22. # # # Copyright (C) 1992-1996, 1998-2012 Free Software Foundation, Inc. # # # This configure script is free software; the Free Software Foundation # gives unlimited permission to copy, distribute and modify it. ## -------------------- ## ## M4sh Initialization. ## ## -------------------- ## # Be more Bourne compatible DUALCASE=1; export DUALCASE # for MKS sh if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then : emulate sh NULLCMD=: # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which # is contrary to our usage. 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See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see * . */ #ifndef base64_H #define base64_H #include /* Base64 routines adapted from https://www.libsodium.org */ /* * ISC License * * Copyright (c) 2013-2017 * Frank Denis * * Permission to use, copy, modify, and/or distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ char *bin2hex(char * const hex, const size_t hex_maxlen, const unsigned char * const bin, const size_t bin_len) __attribute__ ((nonnull(1))); int hex2bin(unsigned char * const bin, const size_t bin_maxlen, const char * const hex, const size_t hex_len, const char * const ignore, size_t * const bin_len, const char ** const hex_end) __attribute__ ((nonnull(1))); #define base64_VARIANT_ORIGINAL 1 #define base64_VARIANT_ORIGINAL_NO_PADDING 3 #define base64_VARIANT_URLSAFE 5 #define base64_VARIANT_URLSAFE_NO_PADDING 7 /* * Computes the required length to encode BIN_LEN bytes as a base64 string * using the given variant. The computed length includes a trailing \0. */ #define base64_ENCODED_LEN(BIN_LEN, VARIANT) \ (((BIN_LEN) / 3U) * 4U + \ ((((BIN_LEN) - ((BIN_LEN) / 3U) * 3U) | (((BIN_LEN) - ((BIN_LEN) / 3U) * 3U) >> 1)) & 1U) * \ (4U - (~((((VARIANT) & 2U) >> 1) - 1U) & (3U - ((BIN_LEN) - ((BIN_LEN) / 3U) * 3U)))) + 1U) size_t base64_encoded_len(const size_t bin_len, const int variant); char *bin2base64(char * const b64, const size_t b64_maxlen, const unsigned char * const bin, const size_t bin_len, const int variant) __attribute__ ((nonnull(1))); int base642bin(unsigned char * const bin, const size_t bin_maxlen, const char * const b64, const size_t b64_len, const char * const ignore, size_t * const bin_len, const char ** const b64_end, const int variant) __attribute__ ((nonnull(1))); char *encode_base64url(const char *str); #endif uacme-1.0.22/uacme.10000644000000000000000000002750113615246552010747 00000000000000'\" t .\" Title: uacme .\" Author: [see the "AUTHOR" section] .\" Generator: DocBook XSL Stylesheets v1.79.1 .\" Date: 02/01/2020 .\" Manual: User Commands .\" Source: uacme 1.0.22 .\" Language: English .\" .TH "UACME" "1" "02/01/2020" "uacme 1\&.0\&.22" "User Commands" .\" ----------------------------------------------------------------- .\" * Define some portability stuff .\" ----------------------------------------------------------------- .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .\" http://bugs.debian.org/507673 .\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .ie \n(.g .ds Aq \(aq .el .ds Aq ' .\" ----------------------------------------------------------------- .\" * set default formatting .\" ----------------------------------------------------------------- .\" disable hyphenation .nh .\" disable justification (adjust text to left margin only) .ad l .\" ----------------------------------------------------------------- .\" * MAIN CONTENT STARTS HERE * .\" ----------------------------------------------------------------- .SH "NAME" uacme \- ACMEv2 client written in plain C code with minimal dependencies .SH "SYNOPSIS" .sp \fBuacme\fR [\fB\-a\fR|\fB\-\-acme\-url\fR \fIURL\fR] [\fB\-b\fR|\fB\-\-bits\fR \fIBITS\fR] [\fB\-c\fR|\fB\-\-confdir\fR \fIDIR\fR] [\fB\-d\fR|\fB\-\-days\fR \fIDAYS\fR] [\fB\-f\fR|\fB\-\-force\fR] [\fB\-h\fR|\fB\-\-hook\fR \fIPROGRAM\fR] [\fB\-m\fR|\fB\-\-must\-staple\fR] [\fB\-n\fR|\fB\-\-never\fR] [\fB\-s\fR|\fB\-\-staging\fR] [\fB\-t\fR|\fB\-\-type\fR \fBRSA\fR|\fBEC\fR] [\fB\-v\fR|\fB\-\-verbose\fR \&...] [\fB\-V\fR|\fB\-\-version\fR] [\fB\-y\fR|\fB\-\-yes\fR] [\fB\-?\fR|\fB\-\-help\fR] \fBnew\fR [\fIEMAIL\fR] | \fBupdate\fR [\fIEMAIL\fR] | \fBdeactivate\fR | \fBnewkey\fR | \fBissue\fR \fIDOMAIN\fR [\fIALTNAME\fR \&...]] | \fBrevoke\fR \fICERTFILE\fR .SH "DESCRIPTION" .sp \fBuacme\fR is a client for the ACMEv2 protocol described in RFC8555, written in plain C code with minimal dependencies (libcurl and one of GnuTLS, OpenSSL or mbedTLS)\&. The ACMEv2 protocol allows a Certificate Authority (https://letsencrypt\&.org is a popular one) and an applicant to automate the process of verification and certificate issuance\&. The protocol also provides facilities for other certificate management functions, such as certificate revocation\&. For more information see https://tools\&.ietf\&.org/html/rfc8555 .SH "OPTIONS" .PP \fB\-a, \-\-acme\-url\fR=\fIURL\fR .RS 4 ACMEv2 server directory object \fIURL\fR\&. If not specified \fBuacme\fR uses one of the following: .PP \fIhttps://acme\-v02\&.api\&.letsencrypt\&.org/directory\fR .RS 4 production URL .RE .PP \fIhttps://acme\-staging\-v02\&.api\&.letsencrypt\&.org/directory\fR .RS 4 staging URL (see \fB\-s, \-\-staging\fR below) .RE .RE .PP \fB\-b, \-\-bits\fR=\fIBITS\fR .RS 4 key bit length (default 2048 for RSA, 256 for EC)\&. Only applies to newly generated keys\&. RSA key length must be a multiple of 8 between 2048 and 8192\&. EC key length must be either 256 (\fBNID_X9_62_prime256v1\fR curve) or 384 (\fBNID_secp384r1\fR curve)\&. .RE .PP \fB\-c, \-\-confdir\fR=\fICONFDIR\fR .RS 4 Use configuration directory \fICONFDIR\fR (default \fI/etc/ssl/uacme\fR)\&. The structure is as follows (multiple \fIDOMAINs\fR allowed) .PP \fICONFDIR/private/key\&.pem\fR .RS 4 ACME account private key .RE .PP \fICONFDIR/private/DOMAIN/key\&.pem\fR .RS 4 certificate key for \fIDOMAIN\fR .RE .PP \fICONFDIR/DOMAIN/cert\&.pem\fR .RS 4 certificate for \fIDOMAIN\fR .RE .RE .PP \fB\-d, \-\-days\fR=\fIDAYS\fR .RS 4 Do not reissue certificates that are still valid for longer than \fIDAYS\fR (default 30)\&. .RE .PP \fB\-f, \-\-force\fR .RS 4 Force certificate reissuance regardless of expiration date\&. .RE .PP \fB\-h, \-\-hook\fR=\fIPROGRAM\fR .RS 4 Challenge hook program\&. If not specified \fBuacme\fR interacts with the user for every ACME challenge, printing information about the challenge type, token and authorization on stderr\&. If specified \fBuacme\fR executes \fIPROGRAM\fR (a binary, a shell script or any file that can be executed by the operating system) for every challenge with the following 5 string arguments: .PP \fIMETHOD\fR .RS 4 one of \fBbegin\fR, \fBdone\fR or \fBfailed\fR\&. .PP \fBbegin\fR .RS 4 is called at the beginning of the challenge\&. \fIPROGRAM\fR must return 0 to accept it\&. Any other return code declines the challenge\&. Neither \fBdone\fR nor \fBfailed\fR method calls are made for declined challenges\&. .RE .PP \fBdone\fR .RS 4 is called upon successful completion of an accepted challenge\&. .RE .PP \fBfailed\fR .RS 4 is called upon failure of an accepted challenge\&. .RE .RE .PP \fITYPE\fR .RS 4 challenge type (for example \fBdns\-01\fR or \fBhttp\-01\fR) .RE .PP \fIIDENT\fR .RS 4 The identifier the challenge refers to .RE .PP \fITOKEN\fR .RS 4 The challenge token .RE .PP \fIAUTH\fR .RS 4 The key authorization (for \fBdns\-01\fR and \fBtls\-alpn\-01\fR already converted to the base64\-encoded SHA256 digest format) .RE .RE .PP \fB\-m, \-\-must\-staple\fR .RS 4 Request certificates with the RFC7633 Certificate Status Request TLS Feature Extension, informally also known as "OCSP Must\-Staple"\&. .RE .PP \fB\-n, \-\-never\-create\fR .RS 4 By default \fBuacme\fR creates directories/keys if they do not exist\&. When this option is specified \fBuacme\fR never does so and instead exits with an error if anything required is missing\&. .RE .PP \fB\-s, \-\-staging\fR .RS 4 Use Let\(cqs Encrypt staging URL for testing\&. This only works if \fB\-a, \-\-acme\-url\fR is \fBNOT\fR specified\&. .RE .PP \fB\-t, \-\-type\fR=\fBRSA\fR | \fBEC\fR .RS 4 Key type, either RSA or EC\&. Only applies to newly generated keys\&. The bit length can be specified with \fB\-b, \-\-bits\fR\&. .RE .PP \fB\-v, \-\-verbose\fR .RS 4 By default \fBuacme\fR only produces output upon errors or when user interaction is required\&. When this option is specified \fBuacme\fR prints information about what is going on on stderr\&. This option can be specified more than once to increase verbosity\&. .RE .PP \fB\-V, \-\-version\fR .RS 4 Print program version on stderr and exit\&. .RE .PP \fB\-y, \-\-yes\fR .RS 4 Autoaccept ACME server terms (if any) upon new account creation\&. .RE .PP \fB\-?, \-\-help\fR .RS 4 Print a brief usage text on stderr and exit\&. .RE .SH "USAGE" .PP \fBuacme\fR [\fIOPTIONS\fR \&...] \fBnew\fR [\fIEMAIL\fR] .RS 4 Create a new ACME account with optional \fIEMAIL\fR contact\&. If the account private key does not exist at \fICONFDIR/private/key\&.pem\fR a new key is generated unless \fB\-n, \-\-never\-create\fR is specified\&. A valid account must be created \fBbefore\fR any other operation can succeed\&. Any certificate issued by the ACME server is associated with a single account\&. An account can be associated with multiple certificates, subject of course to the rate limits imposed by the ACME server\&. .RE .PP \fBuacme\fR [\fIOPTIONS\fR \&...] \fBupdate\fR [\fIEMAIL\fR] .RS 4 Update the \fIEMAIL\fR associated with the ACME account corresponding to the account private key\&. If \fIEMAIL\fR is not specified the account contact email is removed\&. .RE .PP \fBuacme\fR [\fIOPTIONS\fR \&...] \fBdeactivate\fR .RS 4 Deactivate the ACME account corresponding to the account private key\&. \fBWARNING\fR this action is irreversible\&. Users may wish to do this when the account key is compromised or decommissioned\&. A deactivated account can no longer request certificate issuances and revocations or access resources related to the account\&. .RE .PP \fBuacme\fR [\fIOPTIONS\fR \&...] \fBnewkey\fR .RS 4 Change the ACME account private key\&. If the new account private key does not exist at \fICONFDIR/private/newkey\&.pem\fR it is generated unless \fB\-n, \-\-never\-create\fR is specified\&. The new key is then submitted to the server and if the operation succeeds the old key is hardlinked to \fICONFDIR/private/key\-TIMESTAMP\&.pem\fR before renaming \fICONFDIR/private/newkey\&.pem\fR to \fICONFDIR/private/key\&.pem\fR\&. .RE .PP \fBuacme\fR [\fIOPTIONS\fR \&...] \fBissue\fR \fIDOMAIN\fR [\fIALTNAME\fR \&...] .RS 4 Issue a certificate for \fIDOMAIN\fR with zero or more \fIALTNAMEs\fR\&. If a certificate is already available at \fICONFDIR/DOMAIN/cert\&.pem\fR for the specified \fIDOMAIN\fR and \fIALTNAMEs\fR and is still valid for longer than \fIDAYS\fR no action is taken unless \fB\-f, \-\-force\fR is specified\&. The new certificate is saved to \fICONFDIR/DOMAIN/cert\&.pem\fR\&. If the certificate file already exists it is hardlinked to \fICONFDIR/DOMAIN/cert\-TIMESTAMP\&.pem\fR before overwriting\&. The private key for the certificate is loaded from \fICONFDIR/private/DOMAIN/key\&.pem\fR\&. If no such file exists, a new key is generated unless \fB\-n, \-\-never\-create\fR is specified\&. Wildcard DOMAINs or ALTNAMEs are dealt with correctly, as long as the ACME server supports them; note that any such wildcards are automatically removed from the configuration subdirectory name: for example a certificate for \fI*\&.test\&.com\fR is saved to \fICONFDIR/test\&.com/cert\&.pem\fR\&. .RE .PP \fBuacme\fR [\fIOPTIONS\fR \&...] \fBrevoke\fR \fICERTFILE\fR .RS 4 Revoke the certificate stored in \fICERTFILE\fR\&. Only certificates associated with the account can be revoked\&. If successful \fICERTFILE\fR is renamed to \fIrevoked\-TIMESTAMP\&.pem\fR\&. .RE .SH "EXIT STATUS" .PP \fB0\fR .RS 4 Success .RE .PP \fB1\fR .RS 4 Certificate not reissued because it is still current .RE .PP \fB2\fR .RS 4 Failure (syntax or usage error; configuration error; processing failure; unexpected error)\&. .RE .SH "EXAMPLE HOOK SCRIPT" .sp The \fIuacme\&.sh\fR hook script included in the distribution can be used to automate the certificate issuance with \fIhttp\-01\fR challenges, provided a web server for the domain being validated runs on the same machine, with webroot at /var/www .sp .if n \{\ .RS 4 .\} .nf #!/bin/sh CHALLENGE_PATH=/var/www/\&.well\-known/acme\-challenge ARGS=5 E_BADARGS=85 .fi .if n \{\ .RE .\} .sp .if n \{\ .RS 4 .\} .nf if test $# \-ne "$ARGS" then echo "Usage: $(basename "$0") method type ident token auth" 1>&2 exit $E_BADARGS fi .fi .if n \{\ .RE .\} .sp .if n \{\ .RS 4 .\} .nf METHOD=$1 TYPE=$2 IDENT=$3 TOKEN=$4 AUTH=$5 .fi .if n \{\ .RE .\} .sp .if n \{\ .RS 4 .\} .nf case "$METHOD" in "begin") case "$TYPE" in http\-01) echo \-n "${AUTH}" > "${CHALLENGE_PATH}/${TOKEN}" exit $? ;; *) exit 1 ;; esac ;; .fi .if n \{\ .RE .\} .sp .if n \{\ .RS 4 .\} .nf "done"|"failed") case "$TYPE" in http\-01) rm "${CHALLENGE_PATH}/${TOKEN}" exit $? ;; *) exit 1 ;; esac ;; .fi .if n \{\ .RE .\} .sp .if n \{\ .RS 4 .\} .nf *) echo "$0: invalid method" 1>&2 exit 1 esac .fi .if n \{\ .RE .\} .SH "BUGS" .sp If you believe you have found a bug, please create a new issue at https://github\&.com/ndilieto/uacme/issues with any applicable information\&. .SH "AUTHOR" .sp \fBuacme\fR was written by Nicola Di Lieto .SH "COPYRIGHT" .sp Copyright \(co 2019,2020 Nicola Di Lieto .sp This file is part of \fBuacme\fR\&. .sp \fBuacme\fR is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version\&. .sp \fBuacme\fR is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE\&. See the GNU General Public License for more details\&. .sp You should have received a copy of the GNU General Public License along with this program\&. If not, see http://www\&.gnu\&.org/licenses/\&. uacme-1.0.22/json.h0000644000000000000000000000341513606613667010720 00000000000000/* * Copyright (C) 2019,2020 Nicola Di Lieto * * This file is part of uacme. * * uacme is free software: you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * uacme is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see * . */ #ifndef __JSON_H__ #define __JSON_H__ typedef enum { JSON_UNDEFINED = 0, JSON_OBJECT = 1, JSON_ARRAY = 2, JSON_STRING = 3, JSON_PRIMITIVE = 4 } json_type_t; struct json_value; typedef struct json_object { size_t size; struct json_value *names; struct json_value *values; } json_object_t; typedef struct json_array { size_t size; struct json_value *values; } json_array_t; typedef struct json_value { json_type_t type; union { json_object_t object; json_array_t array; char *value; } v; struct json_value *parent; } json_value_t; json_value_t *json_parse(const char *body, size_t body_len); void json_dump(FILE *f, const json_value_t *value); void json_free(json_value_t *value); const json_value_t *json_find(const json_value_t *haystack, const char *needle); const char *json_find_string(const json_value_t *haystack, const char *needle); int json_compare_string(const json_value_t *haystack, const char *name, const char *value); #endif uacme-1.0.22/GNUmakefile0000644000000000000000000001001213606615532011630 00000000000000# This makefile is used only if you run GNU Make. # It is necessary if you want to build targets usually of interest # only to the maintainer. # Copyright (C) 2001, 2003, 2006-2012 Free Software Foundation, Inc. # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 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Yay! Note: for some reason libtool 1.4 doesn't like ## it if -MD -MP comes after the -MF stuff. Hmm. ## Unfortunately, FreeBSD c89 acceptance of flags depends upon ## the command line argument order; so add the flags where they ## appear in depend2.am. Note that the slowdown incurred here ## affects only configure: in makefiles, %FASTDEP% shortcuts this. for arg do case $arg in -c) set fnord "$@" -MT "$object" -MD -MP -MF "$tmpdepfile" "$arg" ;; *) set fnord "$@" "$arg" ;; esac shift # fnord shift # $arg done "$@" stat=$? if test $stat -ne 0; then rm -f "$tmpdepfile" exit $stat fi mv "$tmpdepfile" "$depfile" ;; gcc) ## Note that this doesn't just cater to obsosete pre-3.x GCC compilers. ## but also to in-use compilers like IMB xlc/xlC and the HP C compiler. ## (see the conditional assignment to $gccflag above). ## There are various ways to get dependency output from gcc. Here's ## why we pick this rather obscure method: ## - Don't want to use -MD because we'd like the dependencies to end ## up in a subdir. Having to rename by hand is ugly. ## (We might end up doing this anyway to support other compilers.) ## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like ## -MM, not -M (despite what the docs say). Also, it might not be ## supported by the other compilers which use the 'gcc' depmode. ## - Using -M directly means running the compiler twice (even worse ## than renaming). if test -z "$gccflag"; then gccflag=-MD, fi "$@" -Wp,"$gccflag$tmpdepfile" stat=$? if test $stat -ne 0; then rm -f "$tmpdepfile" exit $stat fi rm -f "$depfile" echo "$object : \\" > "$depfile" # The second -e expression handles DOS-style file names with drive # letters. sed -e 's/^[^:]*: / /' \ -e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile" ## This next piece of magic avoids the "deleted header file" problem. ## The problem is that when a header file which appears in a .P file ## is deleted, the dependency causes make to die (because there is ## typically no way to rebuild the header). We avoid this by adding ## dummy dependencies for each header file. Too bad gcc doesn't do ## this for us directly. ## Some versions of gcc put a space before the ':'. On the theory ## that the space means something, we add a space to the output as ## well. hp depmode also adds that space, but also prefixes the VPATH ## to the object. Take care to not repeat it in the output. ## Some versions of the HPUX 10.20 sed can't process this invocation ## correctly. Breaking it into two sed invocations is a workaround. tr ' ' "$nl" < "$tmpdepfile" \ | sed -e 's/^\\$//' -e '/^$/d' -e "s|.*$object$||" -e '/:$/d' \ | sed -e 's/$/ :/' >> "$depfile" rm -f "$tmpdepfile" ;; hp) # This case exists only to let depend.m4 do its work. It works by # looking at the text of this script. This case will never be run, # since it is checked for above. exit 1 ;; sgi) if test "$libtool" = yes; then "$@" "-Wp,-MDupdate,$tmpdepfile" else "$@" -MDupdate "$tmpdepfile" fi stat=$? if test $stat -ne 0; then rm -f "$tmpdepfile" exit $stat fi rm -f "$depfile" if test -f "$tmpdepfile"; then # yes, the sourcefile depend on other files echo "$object : \\" > "$depfile" # Clip off the initial element (the dependent). Don't try to be # clever and replace this with sed code, as IRIX sed won't handle # lines with more than a fixed number of characters (4096 in # IRIX 6.2 sed, 8192 in IRIX 6.5). We also remove comment lines; # the IRIX cc adds comments like '#:fec' to the end of the # dependency line. tr ' ' "$nl" < "$tmpdepfile" \ | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' \ | tr "$nl" ' ' >> "$depfile" echo >> "$depfile" # The second pass generates a dummy entry for each header file. tr ' ' "$nl" < "$tmpdepfile" \ | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \ >> "$depfile" else make_dummy_depfile fi rm -f "$tmpdepfile" ;; xlc) # This case exists only to let depend.m4 do its work. It works by # looking at the text of this script. This case will never be run, # since it is checked for above. exit 1 ;; aix) # The C for AIX Compiler uses -M and outputs the dependencies # in a .u file. In older versions, this file always lives in the # current directory. Also, the AIX compiler puts '$object:' at the # start of each line; $object doesn't have directory information. # Version 6 uses the directory in both cases. set_dir_from "$object" set_base_from "$object" if test "$libtool" = yes; then tmpdepfile1=$dir$base.u tmpdepfile2=$base.u tmpdepfile3=$dir.libs/$base.u "$@" -Wc,-M else tmpdepfile1=$dir$base.u tmpdepfile2=$dir$base.u tmpdepfile3=$dir$base.u "$@" -M fi stat=$? if test $stat -ne 0; then rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" exit $stat fi for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" do test -f "$tmpdepfile" && break done aix_post_process_depfile ;; tcc) # tcc (Tiny C Compiler) understand '-MD -MF file' since version 0.9.26 # FIXME: That version still under development at the moment of writing. # Make that this statement remains true also for stable, released # versions. # It will wrap lines (doesn't matter whether long or short) with a # trailing '\', as in: # # foo.o : \ # foo.c \ # foo.h \ # # It will put a trailing '\' even on the last line, and will use leading # spaces rather than leading tabs (at least since its commit 0394caf7 # "Emit spaces for -MD"). "$@" -MD -MF "$tmpdepfile" stat=$? if test $stat -ne 0; then rm -f "$tmpdepfile" exit $stat fi rm -f "$depfile" # Each non-empty line is of the form 'foo.o : \' or ' dep.h \'. # We have to change lines of the first kind to '$object: \'. sed -e "s|.*:|$object :|" < "$tmpdepfile" > "$depfile" # And for each line of the second kind, we have to emit a 'dep.h:' # dummy dependency, to avoid the deleted-header problem. sed -n -e 's|^ *\(.*\) *\\$|\1:|p' < "$tmpdepfile" >> "$depfile" rm -f "$tmpdepfile" ;; ## The order of this option in the case statement is important, since the ## shell code in configure will try each of these formats in the order ## listed in this file. A plain '-MD' option would be understood by many ## compilers, so we must ensure this comes after the gcc and icc options. pgcc) # Portland's C compiler understands '-MD'. # Will always output deps to 'file.d' where file is the root name of the # source file under compilation, even if file resides in a subdirectory. # The object file name does not affect the name of the '.d' file. # pgcc 10.2 will output # foo.o: sub/foo.c sub/foo.h # and will wrap long lines using '\' : # foo.o: sub/foo.c ... \ # sub/foo.h ... \ # ... set_dir_from "$object" # Use the source, not the object, to determine the base name, since # that's sadly what pgcc will do too. set_base_from "$source" tmpdepfile=$base.d # For projects that build the same source file twice into different object # files, the pgcc approach of using the *source* file root name can cause # problems in parallel builds. Use a locking strategy to avoid stomping on # the same $tmpdepfile. lockdir=$base.d-lock trap " echo '$0: caught signal, cleaning up...' >&2 rmdir '$lockdir' exit 1 " 1 2 13 15 numtries=100 i=$numtries while test $i -gt 0; do # mkdir is a portable test-and-set. if mkdir "$lockdir" 2>/dev/null; then # This process acquired the lock. "$@" -MD stat=$? # Release the lock. rmdir "$lockdir" break else # If the lock is being held by a different process, wait # until the winning process is done or we timeout. while test -d "$lockdir" && test $i -gt 0; do sleep 1 i=`expr $i - 1` done fi i=`expr $i - 1` done trap - 1 2 13 15 if test $i -le 0; then echo "$0: failed to acquire lock after $numtries attempts" >&2 echo "$0: check lockdir '$lockdir'" >&2 exit 1 fi if test $stat -ne 0; then rm -f "$tmpdepfile" exit $stat fi rm -f "$depfile" # Each line is of the form `foo.o: dependent.h', # or `foo.o: dep1.h dep2.h \', or ` dep3.h dep4.h \'. # Do two passes, one to just change these to # `$object: dependent.h' and one to simply `dependent.h:'. sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile" # Some versions of the HPUX 10.20 sed can't process this invocation # correctly. Breaking it into two sed invocations is a workaround. sed 's,^[^:]*: \(.*\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" \ | sed -e 's/$/ :/' >> "$depfile" rm -f "$tmpdepfile" ;; hp2) # The "hp" stanza above does not work with aCC (C++) and HP's ia64 # compilers, which have integrated preprocessors. The correct option # to use with these is +Maked; it writes dependencies to a file named # 'foo.d', which lands next to the object file, wherever that # happens to be. # Much of this is similar to the tru64 case; see comments there. set_dir_from "$object" set_base_from "$object" if test "$libtool" = yes; then tmpdepfile1=$dir$base.d tmpdepfile2=$dir.libs/$base.d "$@" -Wc,+Maked else tmpdepfile1=$dir$base.d tmpdepfile2=$dir$base.d "$@" +Maked fi stat=$? if test $stat -ne 0; then rm -f "$tmpdepfile1" "$tmpdepfile2" exit $stat fi for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" do test -f "$tmpdepfile" && break done if test -f "$tmpdepfile"; then sed -e "s,^.*\.[$lower]*:,$object:," "$tmpdepfile" > "$depfile" # Add 'dependent.h:' lines. sed -ne '2,${ s/^ *// s/ \\*$// s/$/:/ p }' "$tmpdepfile" >> "$depfile" else make_dummy_depfile fi rm -f "$tmpdepfile" "$tmpdepfile2" ;; tru64) # The Tru64 compiler uses -MD to generate dependencies as a side # effect. 'cc -MD -o foo.o ...' puts the dependencies into 'foo.o.d'. # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put # dependencies in 'foo.d' instead, so we check for that too. # Subdirectories are respected. set_dir_from "$object" set_base_from "$object" if test "$libtool" = yes; then # Libtool generates 2 separate objects for the 2 libraries. These # two compilations output dependencies in $dir.libs/$base.o.d and # in $dir$base.o.d. We have to check for both files, because # one of the two compilations can be disabled. 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The second sed program outputs the file # name when reading, but also accumulates all include files in the # hold buffer in order to output them again at the end. This only # works with sed implementations that can handle large buffers. sed < "$tmpdepfile" -n ' /^Note: including file: *\(.*\)/ { s//\1/ s/\\/\\\\/g p }' | $cygpath_u | sort -u | sed -n ' s/ /\\ /g s/\(.*\)/'"$tab"'\1 \\/p s/.\(.*\) \\/\1:/ H $ { s/.*/'"$tab"'/ G p }' >> "$depfile" echo >> "$depfile" # make sure the fragment doesn't end with a backslash rm -f "$tmpdepfile" ;; msvc7msys) # This case exists only to let depend.m4 do its work. It works by # looking at the text of this script. This case will never be run, # since it is checked for above. exit 1 ;; #nosideeffect) # This comment above is used by automake to tell side-effect # dependency tracking mechanisms from slower ones. dashmstdout) # Important note: in order to support this mode, a compiler *must* # always write the preprocessed file to stdout, regardless of -o. "$@" || exit $? # Remove the call to Libtool. if test "$libtool" = yes; then while test "X$1" != 'X--mode=compile'; do shift done shift fi # Remove '-o $object'. IFS=" " for arg do case $arg in -o) shift ;; $object) shift ;; *) set fnord "$@" "$arg" shift # fnord shift # $arg ;; esac done test -z "$dashmflag" && dashmflag=-M # Require at least two characters before searching for ':' # in the target name. This is to cope with DOS-style filenames: # a dependency such as 'c:/foo/bar' could be seen as target 'c' otherwise. "$@" $dashmflag | sed "s|^[$tab ]*[^:$tab ][^:][^:]*:[$tab ]*|$object: |" > "$tmpdepfile" rm -f "$depfile" cat < "$tmpdepfile" > "$depfile" # Some versions of the HPUX 10.20 sed can't process this sed invocation # correctly. Breaking it into two sed invocations is a workaround. tr ' ' "$nl" < "$tmpdepfile" \ | sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' \ | sed -e 's/$/ :/' >> "$depfile" rm -f "$tmpdepfile" ;; dashXmstdout) # This case only exists to satisfy depend.m4. It is never actually # run, as this mode is specially recognized in the preamble. exit 1 ;; makedepend) "$@" || exit $? # Remove any Libtool call if test "$libtool" = yes; then while test "X$1" != 'X--mode=compile'; do shift done shift fi # X makedepend shift cleared=no eat=no for arg do case $cleared in no) set ""; shift cleared=yes ;; esac if test $eat = yes; then eat=no continue fi case "$arg" in -D*|-I*) set fnord "$@" "$arg"; shift ;; # Strip any option that makedepend may not understand. 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"$@" || exit $? # Remove the call to Libtool. if test "$libtool" = yes; then while test "X$1" != 'X--mode=compile'; do shift done shift fi # Remove '-o $object'. IFS=" " for arg do case $arg in -o) shift ;; $object) shift ;; *) set fnord "$@" "$arg" shift # fnord shift # $arg ;; esac done "$@" -E \ | sed -n -e '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \ -e '/^#line [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \ | sed '$ s: \\$::' > "$tmpdepfile" rm -f "$depfile" echo "$object : \\" > "$depfile" cat < "$tmpdepfile" >> "$depfile" sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile" rm -f "$tmpdepfile" ;; msvisualcpp) # Important note: in order to support this mode, a compiler *must* # always write the preprocessed file to stdout. "$@" || exit $? # Remove the call to Libtool. if test "$libtool" = yes; then while test "X$1" != 'X--mode=compile'; do shift done shift fi IFS=" " for arg do case "$arg" in -o) shift ;; $object) shift ;; "-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI") set fnord "$@" shift shift ;; *) set fnord "$@" "$arg" shift shift ;; esac done "$@" -E 2>/dev/null | sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::\1:p' | $cygpath_u | sort -u > "$tmpdepfile" rm -f "$depfile" echo "$object : \\" > "$depfile" sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::'"$tab"'\1 \\:p' >> "$depfile" echo "$tab" >> "$depfile" sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::\1\::p' >> "$depfile" rm -f "$tmpdepfile" ;; msvcmsys) # This case exists only to let depend.m4 do its work. It works by # looking at the text of this script. This case will never be run, # since it is checked for above. exit 1 ;; none) exec "$@" ;; *) echo "Unknown depmode $depmode" 1>&2 exit 1 ;; esac exit 0 # Local Variables: # mode: shell-script # sh-indentation: 2 # eval: (add-hook 'write-file-hooks 'time-stamp) # time-stamp-start: "scriptversion=" # time-stamp-format: "%:y-%02m-%02d.%02H" # time-stamp-time-zone: "UTC" # time-stamp-end: "; # UTC" # End: uacme-1.0.22/build-aux/m4/0000755000000000000000000000000013615246553012061 500000000000000uacme-1.0.22/build-aux/m4/ax_check_enable_debug.m40000644000000000000000000001131413532041502016445 00000000000000# =========================================================================== # https://www.gnu.org/software/autoconf-archive/ax_check_enable_debug.html # =========================================================================== # # SYNOPSIS # # AX_CHECK_ENABLE_DEBUG([enable by default=yes/info/profile/no], [ENABLE DEBUG VARIABLES ...], [DISABLE DEBUG VARIABLES NDEBUG ...], [IS-RELEASE]) # # DESCRIPTION # # Check for the presence of an --enable-debug option to configure, with # the specified default value used when the option is not present. Return # the value in the variable $ax_enable_debug. # # Specifying 'yes' adds '-g -O0' to the compilation flags for all # languages. Specifying 'info' adds '-g' to the compilation flags. # Specifying 'profile' adds '-g -pg' to the compilation flags and '-pg' to # the linking flags. Otherwise, nothing is added. # # Define the variables listed in the second argument if debug is enabled, # defaulting to no variables. Defines the variables listed in the third # argument if debug is disabled, defaulting to NDEBUG. All lists of # variables should be space-separated. # # If debug is not enabled, ensure AC_PROG_* will not add debugging flags. # Should be invoked prior to any AC_PROG_* compiler checks. # # IS-RELEASE can be used to change the default to 'no' when making a # release. Set IS-RELEASE to 'yes' or 'no' as appropriate. By default, it # uses the value of $ax_is_release, so if you are using the AX_IS_RELEASE # macro, there is no need to pass this parameter. # # AX_IS_RELEASE([git-directory]) # AX_CHECK_ENABLE_DEBUG() # # LICENSE # # Copyright (c) 2011 Rhys Ulerich # Copyright (c) 2014, 2015 Philip Withnall # # Copying and distribution of this file, with or without modification, are # permitted in any medium without royalty provided the copyright notice # and this notice are preserved. #serial 9 AC_DEFUN([AX_CHECK_ENABLE_DEBUG],[ AC_BEFORE([$0],[AC_PROG_CC])dnl AC_BEFORE([$0],[AC_PROG_CXX])dnl AC_BEFORE([$0],[AC_PROG_F77])dnl AC_BEFORE([$0],[AC_PROG_FC])dnl AC_MSG_CHECKING(whether to enable debugging) ax_enable_debug_default=m4_tolower(m4_normalize(ifelse([$1],,[no],[$1]))) ax_enable_debug_is_release=m4_tolower(m4_normalize(ifelse([$4],, [$ax_is_release], [$4]))) # If this is a release, override the default. AS_IF([test "$ax_enable_debug_is_release" = "yes"], [ax_enable_debug_default="no"]) m4_define(ax_enable_debug_vars,[m4_normalize(ifelse([$2],,,[$2]))]) m4_define(ax_disable_debug_vars,[m4_normalize(ifelse([$3],,[NDEBUG],[$3]))]) AC_ARG_ENABLE(debug, [AS_HELP_STRING([--enable-debug=]@<:@yes/info/profile/no@:>@,[compile with debugging])], [],enable_debug=$ax_enable_debug_default) # empty mean debug yes AS_IF([test "x$enable_debug" = "x"], [enable_debug="yes"]) # case of debug AS_CASE([$enable_debug], [yes],[ AC_MSG_RESULT(yes) CFLAGS="${CFLAGS} -g -O0" CXXFLAGS="${CXXFLAGS} -g -O0" FFLAGS="${FFLAGS} -g -O0" FCFLAGS="${FCFLAGS} -g -O0" OBJCFLAGS="${OBJCFLAGS} -g -O0" ], [info],[ AC_MSG_RESULT(info) CFLAGS="${CFLAGS} -g" CXXFLAGS="${CXXFLAGS} -g" FFLAGS="${FFLAGS} -g" FCFLAGS="${FCFLAGS} -g" OBJCFLAGS="${OBJCFLAGS} -g" ], [profile],[ AC_MSG_RESULT(profile) CFLAGS="${CFLAGS} -g -pg" CXXFLAGS="${CXXFLAGS} -g -pg" FFLAGS="${FFLAGS} -g -pg" FCFLAGS="${FCFLAGS} -g -pg" OBJCFLAGS="${OBJCFLAGS} -g -pg" LDFLAGS="${LDFLAGS} -pg" ], [ AC_MSG_RESULT(no) dnl Ensure AC_PROG_CC/CXX/F77/FC/OBJC will not enable debug flags dnl by setting any unset environment flag variables AS_IF([test "x${CFLAGS+set}" != "xset"], [CFLAGS=""]) AS_IF([test "x${CXXFLAGS+set}" != "xset"], [CXXFLAGS=""]) AS_IF([test "x${FFLAGS+set}" != "xset"], [FFLAGS=""]) AS_IF([test "x${FCFLAGS+set}" != "xset"], [FCFLAGS=""]) AS_IF([test "x${OBJCFLAGS+set}" != "xset"], [OBJCFLAGS=""]) ]) dnl Define various variables if debugging is disabled. dnl assert.h is a NOP if NDEBUG is defined, so define it by default. AS_IF([test "x$enable_debug" = "xyes"], [m4_map_args_w(ax_enable_debug_vars, [AC_DEFINE(], [,[1],[Define if debugging is enabled])])], [m4_map_args_w(ax_disable_debug_vars, [AC_DEFINE(], [,[1],[Define if debugging is disabled])])]) ax_enable_debug=$enable_debug ]) uacme-1.0.22/build-aux/m4/ax_is_release.m40000644000000000000000000000650613532041502015036 00000000000000# =========================================================================== # https://www.gnu.org/software/autoconf-archive/ax_is_release.html # =========================================================================== # # SYNOPSIS # # AX_IS_RELEASE(POLICY) # # DESCRIPTION # # Determine whether the code is being configured as a release, or from # git. Set the ax_is_release variable to 'yes' or 'no'. # # If building a release version, it is recommended that the configure # script disable compiler errors and debug features, by conditionalising # them on the ax_is_release variable. If building from git, these # features should be enabled. # # The POLICY parameter specifies how ax_is_release is determined. 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Valid policies: git-directory, minor-version, micro-version, dash-version, always, never.]) ]) ]) uacme-1.0.22/README0000644000000000000000000000444713606613667010464 00000000000000uacme README Copyright (C) 2019,2020 Nicola Di Lieto uacme is a client for the RFC8555 ACMEv2 protocol. Additional information can be found at and the manual page at README ------ This README is targeted for users of the software who build from sources but do not necessarily develop. COMPILATION ----------- A typical command sequence for building uacme is shown below. A complete list of options available for configure can be found by running './configure --help'. cd uacme- ./configure --disable-maintainer-mode make sudo make install The software depends on libcurl and one of GnuTLS, OpenSSL or mbedTLS * libcurl: the multiprotocol file transfer library https://curl.haxx.se/libcurl * GnuTLS: for cryptographic algorithms https://gnutls.org * OpenSSL: alternative to GnuTLS https://www.openssl.org * mbedTLS: lightweight alternative to GnuTLS https://tls.mbed.org DOCUMENTATION ------------- See the documentation in the manual page included in the distribution (uacme.1 or uacme.1.html) LICENSING --------- See the COPYING file for licensing information BUGS ---- If you believe you have found a bug, please create a new issue at https://github.com/ndilieto/uacme/issues with any applicable information. Applicable information would include why the issue is a uacme bug (if not readily apparent), output from 'uname -a', the version of uacme being used, a stack trace if available ('bt full' if under gdb or valgrind output), and perhaps a network trace. Vague queries or piecemeal messages are difficult to act upon and don't help the development effort. PATCHES ------- Patches are welcome and encouraged. Patches can be submitted by creating a pull request at https://github.com/ndilieto/uacme/pulls When submitting patches, please be sure to use sources from the git repository, and preferrably from the master branch. To create a patch for the project from a local git repository, please use the following commands. 'uacme' should be the local directory of a previous git clone. cd uacme git add the-file-you-modified.c another-file.c git commit the-file-you-modified.c another-file.c For more information on use of Git, visit http://git-scm.com/ uacme-1.0.22/crypto.h0000644000000000000000000000461113606613667011266 00000000000000/* * Copyright (C) 2019,2020 Nicola Di Lieto * * This file is part of uacme. * * uacme is free software: you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * uacme is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see * . */ #ifndef __CRYPTO_H__ #define __CRYPTO_H__ #include #if defined(USE_GNUTLS) #if defined(USE_OPENSSL) || defined(USE_MBEDTLS) #error only one of USE_GNUTLS, USE_MBEDTLS or USE_OPENSSL must be defined #endif #include typedef gnutls_privkey_t privkey_t; #define privkey_deinit gnutls_privkey_deinit #elif defined(USE_OPENSSL) #if defined(USE_GNUTLS) || defined(USE_MBEDTLS) #error only one of USE_GNUTLS, USE_MBEDTLS or USE_OPENSSL must be defined #endif #include typedef EVP_PKEY *privkey_t; #define privkey_deinit EVP_PKEY_free #elif defined(USE_MBEDTLS) #if defined(USE_OPENSSL) || defined(USE_GNUTLS) #error only one of USE_GNUTLS, USE_MBEDTLS or USE_OPENSSL must be defined #endif #include typedef mbedtls_pk_context *privkey_t; static inline void privkey_deinit(privkey_t key) { mbedtls_pk_free(key); free(key); } #else #error either USE_GNUTLS or USE_MBEDTLS or USE_OPENSSL must be defined #endif typedef enum { PK_NONE = 0, PK_RSA, PK_EC } keytype_t; bool crypto_init(void); void crypto_deinit(void); char *sha2_base64url(size_t, const char *, ...); char *jws_jwk(privkey_t key, const char **, const char **); char *jws_protected_jwk(const char *, const char *, privkey_t); char *jws_protected_kid(const char *, const char *, const char *, privkey_t); char *jws_thumbprint(privkey_t); char *jws_encode(const char *, const char *, privkey_t); keytype_t key_type(privkey_t); privkey_t key_load(keytype_t, int bits, const char *, ...); char *csr_gen(const char * const *, bool, privkey_t); char *cert_der_base64url(const char *); bool cert_valid(const char *, const char * const *, int); #endif uacme-1.0.22/read-file.c0000644000000000000000000001162713532042600011553 00000000000000/* read-file.c -- read file contents into a string Copyright (C) 2006, 2009-2015 Free Software Foundation, Inc. Written by Simon Josefsson and Bruno Haible. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, see . */ #include "read-file.h" /* Get fstat. */ #include /* Get ftello. */ #include /* Get SIZE_MAX. */ #include /* Get malloc, realloc, free. */ #include /* Get errno. */ #include /* Read a STREAM and return a newly allocated string with the content, and set *LENGTH to the length of the string. The string is zero-terminated, but the terminating zero byte is not counted in *LENGTH. On errors, *LENGTH is undefined, errno preserves the values set by system functions (if any), and NULL is returned. */ char * fread_file (FILE *stream, size_t *length) { char *buf = NULL; size_t alloc = BUFSIZ; /* For a regular file, allocate a buffer that has exactly the right size. This avoids the need to do dynamic reallocations later. */ { struct stat st; if (fstat (fileno (stream), &st) >= 0 && S_ISREG (st.st_mode)) { off_t pos = ftello (stream); if (pos >= 0 && pos < st.st_size) { size_t alloc_off = st.st_size - pos; /* '1' below, accounts for the trailing NUL. */ if (SIZE_MAX/2 - 1 < alloc_off) { errno = ENOMEM; return NULL; } alloc = alloc_off + 1; } } } if (!(buf = malloc (alloc))) return NULL; /* errno is ENOMEM. */ { size_t size = 0; /* number of bytes read so far */ int save_errno; for (;;) { /* This reads 1 more than the size of a regular file so that we get eof immediately. */ size_t requested = alloc - size; size_t count = fread (buf + size, 1, requested, stream); size += count; if (count != requested) { save_errno = errno; if (ferror (stream)) break; /* Shrink the allocated memory if possible. */ if (size < alloc - 1) { char *smaller_buf = realloc (buf, size + 1); if (smaller_buf != NULL) buf = smaller_buf; } buf[size] = '\0'; *length = size; return buf; } { char *new_buf; if (alloc >= SIZE_MAX/2) { save_errno = ENOMEM; break; } if (alloc < SIZE_MAX/2 - alloc / 2) alloc = alloc + alloc / 2; else alloc = SIZE_MAX/2; if (!(new_buf = realloc (buf, alloc))) { save_errno = errno; break; } buf = new_buf; } } free (buf); errno = save_errno; return NULL; } } static char * internal_read_file (const char *filename, size_t *length, const char *mode) { FILE *stream = fopen (filename, mode); char *out; int save_errno; if (!stream) return NULL; out = fread_file (stream, length); save_errno = errno; if (fclose (stream) != 0) { if (out) { save_errno = errno; free (out); } errno = save_errno; return NULL; } return out; } /* Open and read the contents of FILENAME, and return a newly allocated string with the content, and set *LENGTH to the length of the string. The string is zero-terminated, but the terminating zero byte is not counted in *LENGTH. On errors, *LENGTH is undefined, errno preserves the values set by system functions (if any), and NULL is returned. */ char * read_file (const char *filename, size_t *length) { return internal_read_file (filename, length, "r"); } /* Open (on non-POSIX systems, in binary mode) and read the contents of FILENAME, and return a newly allocated string with the content, and set LENGTH to the length of the string. The string is zero-terminated, but the terminating zero byte is not counted in the LENGTH variable. 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See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see * . */ #ifndef __MSG_H__ #define __MSG_H__ extern int g_loglevel; void msg(int level, const char *format, ...); #endif uacme-1.0.22/NEWS0000644000000000000000000000623013615244724010265 00000000000000uacme NEWS Copyright (C) 2019,2020 Nicola Di Lieto ## [1.0.22] - 2020-02-01 ### Changed - relax account status check (compatibility with buypass.no) - allow client challenge retry requests (RFC8555 section 7.1.6) - add wildcard clarification in manpage ## [1.0.21] - 2020-01-12 ### Changed - Quote variables in uacme.sh - Added LFS support (AC_SYS_LARGEFILE) ## [1.0.20] - 2019-10-03 ### Changed - improved HTTP header parsing to fix problem that can happen when retrieving directory over HTTP/2 ## [1.0.19] - 2019-09-30 ### Changed - fix configure script bug when using explicit PKG_CONFIG environment variable - explicitly set key usage in certificate request ## [1.0.18] - 2019-08-29 ### Added - support for OCSP Must-Staple (-m, --must-staple) ### Changed - explicitly set key usage constraints with mbedTLS - fix compilation warning with gcc7 on solaris ## [1.0.17] - 2019-07-03 ### Changed - fix pedantic compilation warning - configure fails if pkg-config isn't found ## [1.0.16] - 2019-06-17 ### Changed - configure script checks for libcurl HTTPS support - minor manpage corrections ## [1.0.15] - 2019-06-15 ### Changed - exit with error if both -a and -s are specified - avoid depending on libtasn1 if gnutls_decode_rs_value is available (requires gnutls 3.6.0 or later) ## [1.0.14] - 2019-06-12 ### Changed - Fix deprecated API when building with OpenSSL v1.1.1c ## [1.0.13] - 2019-06-05 ### Changed - Disable mbedTLS runtime version check if not available ## [1.0.12] - 2019-05-18 ### Changed - Ensure EC key params are always properly padded - Improved hook_run error checking ## [1.0.11] - 2019-05-17 ### Added - Key rollover (https://tools.ietf.org/html/rfc8555#section-7.3.5) ### Changed - Revoked cert files now renamed to 'revoked-TIMESTAMP.pem' - Key auth contains SHA256 digest for tls-alpn-01 (like dns-01) - Minor logging improvements ## [1.0.10] - 2019-05-12 ### Added - secp384r1 EC key support ### Changed - -b, --bits option accepts 256 or 384 for EC keys - enforce multiple of 8 RSA key size - improved acme_get and acme_post verbose logging - retry upon badNonce response according to RFC8555 6.5 ## [1.0.9] - 2019-05-09 ### Added - EC key/cert support (-t, --type=EC, default RSA) - RSA key length option (-b, --bits=BITS, default 2048) ## [1.0.8] - 2019-05-05 ### Added - OpenSSL support (./configure --with-openssl) ### Changed - exit codes: 0=success, 1=cert issuance skipped, 2=error - mbedtls: dynamically grow buffers when needed ## [1.0.7] - 2019-04-29 ### Added - HTTP User-Agent: header in all requests - --disable-docs configure option ### Changed - manpage version now updated automatically ## [1.0.6] - 2019-04-27 ### Changed - fixed uninitialized variable in authorize() function ## [1.0.5] - 2019-04-27 ### Changed - autoconf maintainer mode - cosmetic change to json primitive dump ## [1.0.4] - 2019-04-26 ### Added - debian packaging ## [1.0.3] - 2019-04-25 ### Changed - fixed gcc -pedantic warnings ## [1.0.2] - 2019-04-24 ### Added - support for mbedTLS (./configure --with-mbedtls) ## [1.0.1] - 2019-04-21 ### Changed - minor fixes to links in documentation ## [1.0] - 2019-04-21 ### Added - first public release uacme-1.0.22/jsmn.h0000644000000000000000000002736713532041502010707 00000000000000/* * MIT License * * Copyright (c) 2010 Serge Zaitsev * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #ifndef JSMN_H #define JSMN_H #include #ifdef __cplusplus extern "C" { #endif #ifdef JSMN_STATIC #define JSMN_API static #else #define JSMN_API extern #endif /** * JSON type identifier. Basic types are: * o Object * o Array * o String * o Other primitive: number, boolean (true/false) or null */ typedef enum { JSMN_UNDEFINED = 0, JSMN_OBJECT = 1, JSMN_ARRAY = 2, JSMN_STRING = 3, JSMN_PRIMITIVE = 4 } jsmntype_t; enum jsmnerr { /* Not enough tokens were provided */ JSMN_ERROR_NOMEM = -1, /* Invalid character inside JSON string */ JSMN_ERROR_INVAL = -2, /* The string is not a full JSON packet, more bytes expected */ JSMN_ERROR_PART = -3 }; /** * JSON token description. * type type (object, array, string etc.) * start start position in JSON data string * end end position in JSON data string */ typedef struct { jsmntype_t type; int start; int end; int size; #ifdef JSMN_PARENT_LINKS int parent; #endif } jsmntok_t; /** * JSON parser. Contains an array of token blocks available. Also stores * the string being parsed now and current position in that string. */ typedef struct { unsigned int pos; /* offset in the JSON string */ unsigned int toknext; /* next token to allocate */ int toksuper; /* superior token node, e.g. parent object or array */ } jsmn_parser; /** * Create JSON parser over an array of tokens */ JSMN_API void jsmn_init(jsmn_parser *parser); /** * Run JSON parser. It parses a JSON data string into and array of tokens, each * describing * a single JSON object. */ JSMN_API int jsmn_parse(jsmn_parser *parser, const char *js, const size_t len, jsmntok_t *tokens, const unsigned int num_tokens); #ifndef JSMN_HEADER /** * Allocates a fresh unused token from the token pool. */ static jsmntok_t *jsmn_alloc_token(jsmn_parser *parser, jsmntok_t *tokens, const size_t num_tokens) { jsmntok_t *tok; if (parser->toknext >= num_tokens) { return NULL; } tok = &tokens[parser->toknext++]; tok->start = tok->end = -1; tok->size = 0; #ifdef JSMN_PARENT_LINKS tok->parent = -1; #endif return tok; } /** * Fills token type and boundaries. */ static void jsmn_fill_token(jsmntok_t *token, const jsmntype_t type, const int start, const int end) { token->type = type; token->start = start; token->end = end; token->size = 0; } /** * Fills next available token with JSON primitive. */ static int jsmn_parse_primitive(jsmn_parser *parser, const char *js, const size_t len, jsmntok_t *tokens, const size_t num_tokens) { jsmntok_t *token; int start; start = parser->pos; for (; parser->pos < len && js[parser->pos] != '\0'; parser->pos++) { switch (js[parser->pos]) { #ifndef JSMN_STRICT /* In strict mode primitive must be followed by "," or "}" or "]" */ case ':': #endif case '\t': case '\r': case '\n': case ' ': case ',': case ']': case '}': goto found; } if (js[parser->pos] < 32 || js[parser->pos] >= 127) { parser->pos = start; return JSMN_ERROR_INVAL; } } #ifdef JSMN_STRICT /* In strict mode primitive must be followed by a comma/object/array */ parser->pos = start; return JSMN_ERROR_PART; #endif found: if (tokens == NULL) { parser->pos--; return 0; } token = jsmn_alloc_token(parser, tokens, num_tokens); if (token == NULL) { parser->pos = start; return JSMN_ERROR_NOMEM; } jsmn_fill_token(token, JSMN_PRIMITIVE, start, parser->pos); #ifdef JSMN_PARENT_LINKS token->parent = parser->toksuper; #endif parser->pos--; return 0; } /** * Fills next token with JSON string. */ static int jsmn_parse_string(jsmn_parser *parser, const char *js, const size_t len, jsmntok_t *tokens, const size_t num_tokens) { jsmntok_t *token; int start = parser->pos; parser->pos++; /* Skip starting quote */ for (; parser->pos < len && js[parser->pos] != '\0'; parser->pos++) { char c = js[parser->pos]; /* Quote: end of string */ if (c == '\"') { if (tokens == NULL) { return 0; } token = jsmn_alloc_token(parser, tokens, num_tokens); if (token == NULL) { parser->pos = start; return JSMN_ERROR_NOMEM; } jsmn_fill_token(token, JSMN_STRING, start + 1, parser->pos); #ifdef JSMN_PARENT_LINKS token->parent = parser->toksuper; #endif return 0; } /* Backslash: Quoted symbol expected */ if (c == '\\' && parser->pos + 1 < len) { int i; parser->pos++; switch (js[parser->pos]) { /* Allowed escaped symbols */ case '\"': case '/': case '\\': case 'b': case 'f': case 'r': case 'n': case 't': break; /* Allows escaped symbol \uXXXX */ case 'u': parser->pos++; for (i = 0; i < 4 && parser->pos < len && js[parser->pos] != '\0'; i++) { /* If it isn't a hex character we have an error */ if (!((js[parser->pos] >= 48 && js[parser->pos] <= 57) || /* 0-9 */ (js[parser->pos] >= 65 && js[parser->pos] <= 70) || /* A-F */ (js[parser->pos] >= 97 && js[parser->pos] <= 102))) { /* a-f */ parser->pos = start; return JSMN_ERROR_INVAL; } parser->pos++; } parser->pos--; break; /* Unexpected symbol */ default: parser->pos = start; return JSMN_ERROR_INVAL; } } } parser->pos = start; return JSMN_ERROR_PART; } /** * Parse JSON string and fill tokens. */ JSMN_API int jsmn_parse(jsmn_parser *parser, const char *js, const size_t len, jsmntok_t *tokens, const unsigned int num_tokens) { int r; int i; jsmntok_t *token; int count = parser->toknext; for (; parser->pos < len && js[parser->pos] != '\0'; parser->pos++) { char c; jsmntype_t type; c = js[parser->pos]; switch (c) { case '{': case '[': count++; if (tokens == NULL) { break; } token = jsmn_alloc_token(parser, tokens, num_tokens); if (token == NULL) { return JSMN_ERROR_NOMEM; } if (parser->toksuper != -1) { jsmntok_t *t = &tokens[parser->toksuper]; #ifdef JSMN_STRICT /* In strict mode an object or array can't become a key */ if (t->type == JSMN_OBJECT) { return JSMN_ERROR_INVAL; } #endif t->size++; #ifdef JSMN_PARENT_LINKS token->parent = parser->toksuper; #endif } token->type = (c == '{' ? JSMN_OBJECT : JSMN_ARRAY); token->start = parser->pos; parser->toksuper = parser->toknext - 1; break; case '}': case ']': if (tokens == NULL) { break; } type = (c == '}' ? JSMN_OBJECT : JSMN_ARRAY); #ifdef JSMN_PARENT_LINKS if (parser->toknext < 1) { return JSMN_ERROR_INVAL; } token = &tokens[parser->toknext - 1]; for (;;) { if (token->start != -1 && token->end == -1) { if (token->type != type) { return JSMN_ERROR_INVAL; } token->end = parser->pos + 1; parser->toksuper = token->parent; break; } if (token->parent == -1) { if (token->type != type || parser->toksuper == -1) { return JSMN_ERROR_INVAL; } break; } token = &tokens[token->parent]; } #else for (i = parser->toknext - 1; i >= 0; i--) { token = &tokens[i]; if (token->start != -1 && token->end == -1) { if (token->type != type) { return JSMN_ERROR_INVAL; } parser->toksuper = -1; token->end = parser->pos + 1; break; } } /* Error if unmatched closing bracket */ if (i == -1) { return JSMN_ERROR_INVAL; } for (; i >= 0; i--) { token = &tokens[i]; if (token->start != -1 && token->end == -1) { parser->toksuper = i; break; } } #endif break; case '\"': r = jsmn_parse_string(parser, js, len, tokens, num_tokens); if (r < 0) { return r; } count++; if (parser->toksuper != -1 && tokens != NULL) { tokens[parser->toksuper].size++; } break; case '\t': case '\r': case '\n': case ' ': break; case ':': parser->toksuper = parser->toknext - 1; break; case ',': if (tokens != NULL && parser->toksuper != -1 && tokens[parser->toksuper].type != JSMN_ARRAY && tokens[parser->toksuper].type != JSMN_OBJECT) { #ifdef JSMN_PARENT_LINKS parser->toksuper = tokens[parser->toksuper].parent; #else for (i = parser->toknext - 1; i >= 0; i--) { if (tokens[i].type == JSMN_ARRAY || tokens[i].type == JSMN_OBJECT) { if (tokens[i].start != -1 && tokens[i].end == -1) { parser->toksuper = i; break; } } } #endif } break; #ifdef JSMN_STRICT /* In strict mode primitives are: numbers and booleans */ case '-': case '0': case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': case 't': case 'f': case 'n': /* And they must not be keys of the object */ if (tokens != NULL && parser->toksuper != -1) { const jsmntok_t *t = &tokens[parser->toksuper]; if (t->type == JSMN_OBJECT || (t->type == JSMN_STRING && t->size != 0)) { return JSMN_ERROR_INVAL; } } #else /* In non-strict mode every unquoted value is a primitive */ default: #endif r = jsmn_parse_primitive(parser, js, len, tokens, num_tokens); if (r < 0) { return r; } count++; if (parser->toksuper != -1 && tokens != NULL) { tokens[parser->toksuper].size++; } break; #ifdef JSMN_STRICT /* Unexpected char in strict mode */ default: return JSMN_ERROR_INVAL; #endif } } if (tokens != NULL) { for (i = parser->toknext - 1; i >= 0; i--) { /* Unmatched opened object or array */ if (tokens[i].start != -1 && tokens[i].end == -1) { return JSMN_ERROR_PART; } } } return count; } /** * Creates a new parser based over a given buffer with an array of tokens * available. */ JSMN_API void jsmn_init(jsmn_parser *parser) { parser->pos = 0; parser->toknext = 0; parser->toksuper = -1; } #endif /* JSMN_HEADER */ #ifdef __cplusplus } #endif #endif /* JSMN_H */ uacme-1.0.22/curlwrap.h0000644000000000000000000000214113606613667011601 00000000000000/* * Copyright (C) 2019,2020 Nicola Di Lieto * * This file is part of uacme. * * uacme is free software: you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * uacme is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see * . */ #ifndef __CURLWRAP_H__ #define __CURLWRAP_H__ #include typedef struct { char *body; size_t body_len; char *headers; size_t headers_len; int code; } curldata_t; curldata_t *curldata_calloc(void); void curldata_free(curldata_t *c); curldata_t *curl_get(const char *url); curldata_t *curl_post(const char *url, const char *post); #endif uacme-1.0.22/crypto.c0000644000000000000000000022350613606613667011267 00000000000000/* * Copyright (C) 2019,2020 Nicola Di Lieto * * This file is part of uacme. * * uacme is free software: you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * uacme is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see * . */ #include #include #include #include #include #include #include #include #include "base64.h" #include "crypto.h" #include "msg.h" #if !defined(USE_OPENSSL) #include "read-file.h" #endif #if defined(USE_GNUTLS) #include #if HAVE_GNUTLS_X509_CRQ_SET_TLSFEATURES #include #endif #if !HAVE_GNUTLS_DECODE_RS_VALUE #include #endif #elif defined(USE_OPENSSL) #include #include #include #include #include #include #include #include #include #include #include #include #elif defined(USE_MBEDTLS) #include #include #include #include #include #include #include #include #include #include #include #include #endif #if defined(USE_GNUTLS) #if GNUTLS_VERSION_NUMBER < 0x03031e #error GnuTLS version 3.3.30 or later is required #endif bool crypto_init(void) { #if HAVE_GNUTLS_DECODE_RS_VALUE if (!gnutls_check_version("3.6.0")) { warnx("crypto_init: GnuTLS version 3.6.0 or later is required"); #elif HAVE_GNUTLS_X509_CRQ_SET_TLSFEATURES if (!gnutls_check_version("3.5.1")) { warnx("crypto_init: GnuTLS version 3.5.1 or later is required"); #else if (!gnutls_check_version("3.3.30")) { warnx("crypto_init: GnuTLS version 3.3.30 or later is required"); #endif return false; } gnutls_global_init(); return true; } void crypto_deinit(void) { gnutls_global_deinit(); } #elif defined(USE_OPENSSL) #if OPENSSL_VERSION_NUMBER < 0x1010100fL #error OpenSSL version 1.1.1 or later is required #endif bool crypto_init(void) { if (OpenSSL_version_num() < 0x1010100fL) { warnx("crypto_init: openssl version 1.1.1 or later is required"); return false; } return true; } void crypto_deinit(void) { } static void openssl_error(const char *prefix) { unsigned long e; while ((e = ERR_get_error()) != 0) { warnx("%s: openssl %s", prefix, ERR_error_string(e, NULL)); return; } } static bool openssl_hash_fast(const EVP_MD *type, const void *input, size_t len, unsigned char *output) { bool success = false; EVP_MD_CTX *emc = EVP_MD_CTX_create(); if (!emc) { openssl_error("openssl_hash_fast"); goto out; } if (!EVP_DigestInit_ex(emc, type, NULL)) { openssl_error("openssl_hash_fast"); goto out; } if (!EVP_DigestUpdate(emc, input, len)) { openssl_error("openssl_hash_fast"); goto out; } if (!EVP_DigestFinal_ex(emc, output, NULL)) { openssl_error("openssl_hash_fast"); goto out; } success = true; out: if (emc) EVP_MD_CTX_destroy(emc); return success; } #elif defined(USE_MBEDTLS) #if MBEDTLS_VERSION_NUMBER < 0x02100000 #error mbedTLS version 2.16 or later is required #endif static mbedtls_entropy_context entropy; static mbedtls_ctr_drbg_context ctr_drbg; static const char *_mbedtls_strerror(int code) { static char buf[0x100]; mbedtls_strerror(code, buf, sizeof(buf)); return buf; } bool crypto_init(void) { #ifdef MBEDTLS_VERSION_C if (mbedtls_version_get_number() < 0x02100000) { warnx("crypto_init: mbedTLS version 2.16 or later is required"); return false; } #endif mbedtls_entropy_init(&entropy); mbedtls_ctr_drbg_init(&ctr_drbg); int r = mbedtls_ctr_drbg_seed(&ctr_drbg, mbedtls_entropy_func, &entropy, NULL, 0); if (r) { warnx("crypto_init: mbedtls_ctr_dbg_seed failed: %s", _mbedtls_strerror(r)); return false; } return true; } void crypto_deinit(void) { mbedtls_ctr_drbg_free(&ctr_drbg); mbedtls_entropy_free(&entropy); } static int mbedtls_hash_fast(mbedtls_md_type_t md_type, const void *input, size_t len, unsigned char *output) { const mbedtls_md_info_t *mdi = mbedtls_md_info_from_type(md_type); if (!mdi) { warnx("mbedtls_hash_get_len: md_info not found"); return MBEDTLS_ERR_MD_FEATURE_UNAVAILABLE; } return mbedtls_md(mdi, input, len, output); } #endif char *sha2_base64url(size_t bits, const char *format, ...) { char *input = NULL; size_t encoded_hash_len; char *encoded_hash = NULL; const unsigned int hash_len = (bits+7)/8; unsigned char *hash = NULL; va_list ap; va_start(ap, format); if (vasprintf(&input, format, ap) < 0) { warnx("sha2_base64url: vasprintf failed"); input = NULL; goto out; } hash = calloc(1, hash_len); if (!hash) { warnx("sha2_base64url: calloc failed"); goto out; } #if defined(USE_GNUTLS) gnutls_digest_algorithm_t type; #elif defined(USE_OPENSSL) const EVP_MD *type; #elif defined(USE_MBEDTLS) mbedtls_md_type_t type; #endif switch (bits) { case 256: #if defined(USE_GNUTLS) type = GNUTLS_DIG_SHA256; #elif defined(USE_OPENSSL) type = EVP_sha256(); #elif defined(USE_MBEDTLS) type = MBEDTLS_MD_SHA256; #endif break; case 384: #if defined(USE_GNUTLS) type = GNUTLS_DIG_SHA384; #elif defined(USE_OPENSSL) type = EVP_sha384(); #elif defined(USE_MBEDTLS) type = MBEDTLS_MD_SHA384; #endif break; default: warnx("sha2_base64url: invalid hash bit length"); goto out; } #if defined(USE_GNUTLS) int r = gnutls_hash_fast(type, input, strlen(input), hash); if (r != GNUTLS_E_SUCCESS) { warnx("sha2_base64url: gnutls_hash_fast failed: %s", gnutls_strerror(r)); goto out; } #elif defined(USE_OPENSSL) if (!openssl_hash_fast(type, input, strlen(input), hash)) { warnx("sha2_base64url: openssl_hash_fast failed"); goto out; } #elif defined(USE_MBEDTLS) int r = mbedtls_hash_fast(type, input, strlen(input), hash); if (r != 0) { warnx("sha2_base64url: mbedtls_hash_fast failed: %s", _mbedtls_strerror(r)); goto out; } #endif encoded_hash_len = base64_ENCODED_LEN(hash_len, base64_VARIANT_URLSAFE_NO_PADDING); encoded_hash = calloc(1, encoded_hash_len); if (!encoded_hash) { warn("sha2_base64url: calloc failed"); goto out; } if (!bin2base64(encoded_hash, encoded_hash_len, hash, hash_len, base64_VARIANT_URLSAFE_NO_PADDING)) { warnx("sha2_base64url: bin2base64 failed"); free(encoded_hash); encoded_hash = NULL; goto out; } out: va_end(ap); free(input); free(hash); return encoded_hash; } static char *bn2str(const unsigned char *data, size_t data_len, size_t pad_len) { char *ret = NULL; unsigned char *buf = NULL; while (data_len && !*data) { data++; data_len--; } if (pad_len == 0) { pad_len = data_len; } else if (pad_len < data_len) { warnx("bn2str: insufficient pad_len"); goto out; } buf = calloc(1, pad_len); if (!buf) { warn("bn2str: calloc failed"); goto out; } memcpy(buf + pad_len - data_len, data, data_len); size_t encoded_len = base64_ENCODED_LEN(pad_len, base64_VARIANT_URLSAFE_NO_PADDING); ret = calloc(1, encoded_len); if (!ret) { warn("bn2str: calloc failed"); goto out; } if (!bin2base64(ret, encoded_len, buf, pad_len, base64_VARIANT_URLSAFE_NO_PADDING)) { free(ret); ret = NULL; } out: free(buf); return ret; } static bool rsa_params(privkey_t key, char **m, char **e) { int r; char *_m = NULL; char *_e = NULL; #if defined(USE_GNUTLS) gnutls_datum_t mod = {NULL, 0}; gnutls_datum_t exp = {NULL, 0}; if (gnutls_privkey_get_pk_algorithm(key, NULL) != GNUTLS_PK_RSA) { warnx("rsa_params: not a RSA key"); goto out; } r = gnutls_privkey_export_rsa_raw(key, &mod, &exp, NULL, NULL, NULL, NULL, NULL, NULL); if (r < 0) { warnx("rsa_params: gnutls_privkey_export_rsa_raw: %s", gnutls_strerror(r)); goto out; } _m = bn2str(mod.data, mod.size, 0); if (!_m) { warnx("rsa_params: bn2str failed"); goto out; } _e = bn2str(exp.data, exp.size, 0); if (!_e) { warnx("rsa_params: bn2str failed"); goto out; } #elif defined(USE_OPENSSL) unsigned char *data = NULL; RSA *rsa = EVP_PKEY_get0_RSA(key); if (!rsa) { openssl_error("rsa_params"); goto out; } r = BN_num_bytes(RSA_get0_n(rsa)); data = calloc(1, r); if (!data) { warn("rsa_params: calloc failed"); goto out; } if (BN_bn2bin(RSA_get0_n(rsa), data) != r) { openssl_error("rsa_params"); goto out; } _m = bn2str(data, r, 0); if (!_m) { warnx("rsa_params: bn2str failed"); goto out; } free(data); r = BN_num_bytes(RSA_get0_e(rsa)); data = calloc(1, r); if (!data) { warn("rsa_params: calloc failed"); goto out; } if (BN_bn2bin(RSA_get0_e(rsa), data) != r) { openssl_error("rsa_params"); goto out; } _e = bn2str(data, r, 0); if (!_e) { warnx("rsa_params: bn2str failed"); goto out; } #elif defined(USE_MBEDTLS) unsigned char *data = NULL; size_t len; if (!mbedtls_pk_can_do(key, MBEDTLS_PK_RSA)) { warnx("rsa_params: not a RSA key"); goto out; } const mbedtls_rsa_context *rsa = mbedtls_pk_rsa(*key); len = mbedtls_mpi_size(&rsa->N); data = calloc(1, len); if (!data) { warnx("rsa_params: calloc failed"); goto out; } r = mbedtls_mpi_write_binary(&rsa->N, data, len); if (r) { warnx("rsa_params: mbedtls_mpi_write_binary failed: %s", _mbedtls_strerror(r)); goto out; } _m = bn2str(data, len, 0); if (!_m) { warnx("rsa_params: bn2str failed"); goto out; } free(data); len = mbedtls_mpi_size(&rsa->E); data = calloc(1, len); if (!data) { warnx("rsa_params: calloc failed"); goto out; } r = mbedtls_mpi_write_binary(&rsa->E, data, len); if (r) { warnx("rsa_params: mbedtls_mpi_write_binary failed: %s", _mbedtls_strerror(r)); goto out; } _e = bn2str(data, len, 0); if (!_e) { warnx("rsa_params: bn2str failed"); goto out; } #endif out: #if defined(USE_GNUTLS) free(mod.data); free(exp.data); #elif defined(USE_OPENSSL) free(data); #elif defined(USE_MBEDTLS) free(data); #endif if (_e && _m) { if (e) { *e = _e; } else { free(_e); } if (m) { *m = _m; } else { free(_m); } return true; } else { free(_e); free(_m); return false; } } static size_t ec_params(privkey_t key, char **x, char **y) { int r; size_t bits = 0; char *_x = NULL; char *_y = NULL; #if defined(USE_GNUTLS) gnutls_ecc_curve_t curve; gnutls_datum_t dx = {NULL, 0}; gnutls_datum_t dy = {NULL, 0}; if (gnutls_privkey_get_pk_algorithm(key, NULL) != GNUTLS_PK_EC) { warnx("ec_params: not a EC key"); goto out; } r = gnutls_privkey_export_ecc_raw(key, &curve, &dx, &dy, NULL); if (r < 0) { warnx("ec_params: gnutls_privkey_export_ecc_raw: %s", gnutls_strerror(r)); goto out; } switch (curve) { case GNUTLS_ECC_CURVE_SECP256R1: bits = 256; break; case GNUTLS_ECC_CURVE_SECP384R1: bits = 384; break; default: warnx("ec_params: only \"prime256v1\" and \"secp384r1\" " "Elliptic Curves supported"); goto out; } _x = bn2str(dx.data, dx.size, (bits+7)/8); if (!_x) { warnx("ec_params: bn2str failed"); goto out; } _y = bn2str(dy.data, dy.size, (bits+7)/8); if (!_y) { warnx("ec_params: bn2str failed"); goto out; } #elif defined(USE_OPENSSL) unsigned char *data = NULL; BIGNUM *bx = BN_new(); BIGNUM *by = BN_new(); if (!bx || !by) { openssl_error("ec_params"); goto out; } EC_KEY *ec = EVP_PKEY_get0_EC_KEY(key); if (!ec) { openssl_error("ec_params"); goto out; } const EC_GROUP *g = EC_KEY_get0_group(ec); if (!g) { openssl_error("ec_params"); } switch (EC_GROUP_get_curve_name(g)) { case NID_X9_62_prime256v1: bits = 256; break; case NID_secp384r1: bits = 384; break; default: warnx("ec_params: only \"prime256v1\" and \"secp384r1\" " "Elliptic Curves supported"); goto out; } const EC_POINT *pubkey = EC_KEY_get0_public_key(ec); if (!pubkey) { openssl_error("ec_params"); goto out; } if (!EC_POINT_get_affine_coordinates(g, pubkey, bx, by, NULL)) { openssl_error("ec_params"); goto out; } r = BN_num_bytes(bx); data = calloc(1, r); if (!data) { warn("ec_params: calloc failed"); goto out; } if (BN_bn2bin(bx, data) != r) { openssl_error("ec_params"); goto out; } _x = bn2str(data, r, (bits+7)/8); if (!_x) { warnx("ec_params: bn2str failed"); goto out; } free(data); r = BN_num_bytes(by); data = calloc(1, r); if (!data) { warn("ec_params: calloc failed"); goto out; } if (BN_bn2bin(by, data) != r) { openssl_error("ec_params"); goto out; } _y = bn2str(data, r, (bits+7)/8); if (!_y) { warnx("ec_params: bn2str failed"); goto out; } #elif defined(USE_MBEDTLS) unsigned char *data = NULL; size_t len; if (!mbedtls_pk_can_do(key, MBEDTLS_PK_ECKEY)) { warnx("ec_params: not a EC key"); goto out; } const mbedtls_ecp_keypair *ec = mbedtls_pk_ec(*key); switch (ec->grp.id) { case MBEDTLS_ECP_DP_SECP256R1: bits = 256; break; case MBEDTLS_ECP_DP_SECP384R1: bits = 384; break; default: warnx("ec_params: only \"prime256v1\" and \"secp384r1\" " "Elliptic Curves supported"); goto out; } len = mbedtls_mpi_size(&ec->Q.X); data = calloc(1, len); if (!data) { warnx("ec_params: calloc failed"); goto out; } r = mbedtls_mpi_write_binary(&ec->Q.X, data, len); if (r) { warnx("ec_params: mbedtls_mpi_write_binary failed: %s", _mbedtls_strerror(r)); goto out; } _x = bn2str(data, len, (bits+7)/8); if (!_x) { warnx("ec_params: bn2str failed"); goto out; } free(data); len = mbedtls_mpi_size(&ec->Q.Y); data = calloc(1, len); if (!data) { warnx("ec_params: calloc failed"); goto out; } r = mbedtls_mpi_write_binary(&ec->Q.Y, data, len); if (r) { warnx("ec_params: mbedtls_mpi_write_binary failed: %s", _mbedtls_strerror(r)); goto out; } _y = bn2str(data, len, (bits+7)/8); if (!_y) { warnx("ec_params: bn2str failed"); goto out; } #endif out: #if defined(USE_GNUTLS) free(dx.data); free(dy.data); #elif defined(USE_OPENSSL) if (bx) BN_free(bx); if (by) BN_free(by); free(data); #elif defined(USE_MBEDTLS) free(data); #endif if (_x && _y) { if (x) { *x = _x; } else { free(_x); } if (y) { *y = _y; } else { free(_y); } return bits; } else { free(_x); free(_y); return 0; } } keytype_t key_type(privkey_t key) { #if defined(USE_GNUTLS) switch (gnutls_privkey_get_pk_algorithm(key, NULL)) { case GNUTLS_PK_RSA: return PK_RSA; case GNUTLS_PK_EC: return PK_EC; #elif defined(USE_OPENSSL) switch (EVP_PKEY_base_id(key)) { case EVP_PKEY_RSA: return PK_RSA; case EVP_PKEY_EC: return PK_EC; #elif defined(USE_MBEDTLS) switch (mbedtls_pk_get_type(key)) { case MBEDTLS_PK_RSA: return PK_RSA; case MBEDTLS_PK_ECKEY: return PK_EC; #endif default: return PK_NONE; } } char *jws_jwk(privkey_t key, const char **crv, const char **alg) { char *ret = NULL; char *p1 = NULL; char *p2 = NULL; const char *_crv = NULL; switch (key_type(key)) { case PK_RSA: if (!rsa_params(key, &p1, &p2)) { warnx("jws_jwk: rsa_params failed"); goto out; } if (asprintf(&ret, "{\"kty\":\"RSA\",\"n\":\"%s\",\"e\":\"%s\"}", p1, p2) < 0) { warnx("jws_jwk: asprintf failed"); ret = NULL; goto out; } if (alg) *alg = "RS256"; break; case PK_EC: switch (ec_params(key, &p1, &p2)) { case 0: warnx("jws_jwk: ec_params failed"); goto out; case 256: _crv = "P-256"; if (crv) *crv = _crv; if (alg) *alg = "ES256"; break; case 384: _crv = "P-384"; if (crv) *crv = _crv; if (alg) *alg = "ES384"; break; default: warnx("jws_jwk: unsupported EC curve"); goto out; } if (asprintf(&ret, "{\"kty\":\"EC\",\"crv\":\"%s\"," "\"x\":\"%s\",\"y\":\"%s\"}", _crv, p1, p2) < 0) { warnx("jws_jwk: asprintf failed"); ret = NULL; goto out; } break; default: warnx("jws_jwk: only RSA/EC keys are supported"); goto out; } out: free(p1); free(p2); return ret; } char *jws_protected_jwk(const char *nonce, const char *url, privkey_t key) { char *ret = NULL; const char *crv = NULL; const char *alg = NULL; char *jwk = jws_jwk(key, &crv, &alg); if (!jwk) { warnx("jws_protected_jwk: jws_jwk failed"); goto out; } if (nonce) { if (asprintf(&ret, "{\"alg\":\"%s\",\"nonce\":\"%s\"," "\"url\":\"%s\",\"jwk\":%s}", alg, nonce, url, jwk) < 0) { warnx("jws_protected_jwk: asprintf failed"); ret = NULL; } } else { if (asprintf(&ret, "{\"alg\":\"%s\",\"url\":\"%s\",\"jwk\":%s}", alg, url, jwk) < 0) { warnx("jws_protected_jwk: asprintf failed"); ret = NULL; } } out: free(jwk); return ret; } char *jws_protected_kid(const char *nonce, const char *url, const char *kid, privkey_t key) { char *ret = NULL; const char *alg = NULL; switch (key_type(key)) { case PK_RSA: alg = "RS256"; break; case PK_EC: switch (ec_params(key, NULL, NULL)) { case 0: warnx("jws_protected_kid: ec_params failed"); goto out; case 256: alg = "ES256"; break; case 384: alg = "ES384"; break; default: warnx("jws_protected_kid: unsupported EC curve"); goto out; } break; default: warnx("jws_protected_kid: only RSA/EC keys are supported"); goto out; } if (asprintf(&ret, "{\"alg\":\"%s\",\"nonce\":\"%s\"," "\"url\":\"%s\",\"kid\":\"%s\"}", alg, nonce, url, kid) < 0) { warnx("jws_protected_kid: asprintf failed"); ret = NULL; } out: return ret; } char *jws_thumbprint(privkey_t key) { char *ret = NULL; char *p1 = NULL; char *p2 = NULL; const char *crv = NULL; switch (key_type(key)) { case PK_RSA: if (!rsa_params(key, &p1, &p2)) { warnx("jws_thumbprint: rsa_params failed"); goto out; } ret = sha2_base64url(256, "{\"e\":\"%s\",\"kty\":\"RSA\"," "\"n\":\"%s\"}", p2, p1); if (!ret) { warnx("jws_thumbprint: sha2_base64url failed"); } break; case PK_EC: switch (ec_params(key, &p1, &p2)) { case 0: warnx("jws_thumbprint: ec_params failed"); goto out; case 256: crv = "P-256"; break; case 384: crv = "P-384"; break; default: warnx("jws_thumbprint: unsupported EC curve"); goto out; } ret = sha2_base64url(256, "{\"crv\":\"%s\",\"kty\":\"EC\"," "\"x\":\"%s\",\"y\":\"%s\"}", crv, p1, p2); if (!ret) { warnx("jws_thumbprint: sha2_base64url failed"); } break; default: warnx("jws_thumbprint: only RSA/EC keys are supported"); goto out; } out: free(p1); free(p2); return ret; } #if defined(USE_GNUTLS) static unsigned char *gnutls_datum_data(gnutls_datum_t *d, bool free) { unsigned char *ret = malloc(d->size); if (!ret) { warn("gnutls_datum2mem: malloc failed"); goto out; } memcpy(ret, d->data, d->size); if (free) { gnutls_free(d->data); d->data = NULL; } out: return ret; } #endif bool ec_decode(size_t hash_size, unsigned char **sig, size_t *sig_size) { int r; #if defined(USE_GNUTLS) #if HAVE_GNUTLS_DECODE_RS_VALUE gnutls_datum_t dr = {NULL, 0}; gnutls_datum_t ds = {NULL, 0}; gnutls_datum_t dsig = {*sig, *sig_size}; r = gnutls_decode_rs_value(&dsig, &dr, &ds); if (r < 0) { warnx("ec_decode: gnutls_decode_rs_value: %s", gnutls_strerror(r)); return false; } unsigned char *tmp = calloc(1, 2*hash_size); if (!tmp) { warn("ec_decode: calloc failed"); gnutls_free(dr.data); gnutls_free(ds.data); return false; } if (dr.size >= hash_size) { memcpy(tmp, dr.data + dr.size - hash_size, hash_size); } else { memcpy(tmp + hash_size - dr.size, dr.data, dr.size); } if (ds.size >= hash_size) { memcpy(tmp + hash_size, ds.data + ds.size - hash_size, hash_size); } else { memcpy(tmp + 2*hash_size - ds.size, ds.data, ds.size); } gnutls_free(dr.data); gnutls_free(ds.data); #else int len; const unsigned char *p = *sig; int ps = *sig_size; unsigned long tag; unsigned char cls; r = asn1_get_tag_der(p, ps, &cls, &len, &tag); if (r != ASN1_SUCCESS) { warnx("ec_decode: asn1_get_tag_der: %s", asn1_strerror(r)); return false; } if (cls != ASN1_CLASS_STRUCTURED || tag != ASN1_TAG_SEQUENCE) { warnx("ec_decode: unexpected ASN1 tag"); return false; } p += len; ps -= len; r = asn1_get_length_der(p, ps, &len); if (r < 0) { warnx("ec_decode: asn1_get_length_der: %d", r); return false; } p += len; ps -= len; if (p + r != *sig + *sig_size) { warnx("ec_decode: signature lenght mismatch"); return false; } unsigned char *tmp = calloc(1, 2*hash_size); if (!tmp) { warn("ec_decode: calloc failed"); return false; } r = asn1_get_tag_der(p, ps, &cls, &len, &tag); if (r != ASN1_SUCCESS) { warnx("ec_decode: asn1_get_tag_der: %s", asn1_strerror(r)); free(tmp); return false; } if (cls != ASN1_CLASS_UNIVERSAL || tag != ASN1_TAG_INTEGER) { warnx("ec_decode: unexpected ASN1 tag"); free(tmp); return false; } p += len; ps -= len; r = asn1_get_length_der(p, ps, &len); if (r < 0) { warnx("ec_decode: asn1_get_length_der: %d", r); free(tmp); return false; } p += len; ps -= len; if (r >= (int)hash_size) { memcpy(tmp, p + r - hash_size, hash_size); } else { memcpy(tmp + hash_size - r, p, r); } p += r; ps -= r; r = asn1_get_tag_der(p, ps, &cls, &len, &tag); if (r != ASN1_SUCCESS) { warnx("ec_decode: asn1_get_tag_der: %s", asn1_strerror(r)); free(tmp); return false; } if (cls != ASN1_CLASS_UNIVERSAL || tag != ASN1_TAG_INTEGER) { warnx("ec_decode: unexpected ASN1 tag"); free(tmp); return false; } p += len; ps -= len; r = asn1_get_length_der(p, ps, &len); if (r < 0) { warnx("ec_decode: asn1_get_length_der: %d", r); free(tmp); return false; } p += len; ps -= len; if (r >= (int)hash_size) { memcpy(tmp + hash_size, p + r - hash_size, hash_size); } else { memcpy(tmp + 2*hash_size - r, p, r); } p += r; ps -= r; if (ps != 0) { warnx("ec_decode: signature lenght mismatch"); free(tmp); return false; } #endif #elif defined(USE_OPENSSL) const unsigned char *p = *sig; ECDSA_SIG *s = d2i_ECDSA_SIG(NULL, &p, *sig_size); if (!s) { openssl_error("ec_decode"); return false; } unsigned char *tmp = calloc(1, 2*hash_size); if (!tmp) { warn("ec_decode: calloc failed"); ECDSA_SIG_free(s); return false; } r = BN_num_bytes(ECDSA_SIG_get0_r(s)); unsigned char *data = calloc(1, r); if (!data) { warn("ec_decode: calloc failed"); ECDSA_SIG_free(s); free(tmp); return false; } if (BN_bn2bin(ECDSA_SIG_get0_r(s), data) != r) { openssl_error("ec_decode"); ECDSA_SIG_free(s); free(data); free(tmp); return false; } if (r >= (int)hash_size) { memcpy(tmp, data + r - hash_size, hash_size); } else { memcpy(tmp + hash_size - r, data, r); } free(data); r = BN_num_bytes(ECDSA_SIG_get0_s(s)); data = calloc(1, r); if (!data) { warn("ec_decode: calloc failed"); ECDSA_SIG_free(s); free(tmp); return false; } if (BN_bn2bin(ECDSA_SIG_get0_s(s), data) != r) { openssl_error("ec_decode"); ECDSA_SIG_free(s); free(data); free(tmp); return false; } if (r >= (int)hash_size) { memcpy(tmp + hash_size, data + r - hash_size, hash_size); } else { memcpy(tmp + 2*hash_size - r, data, r); } ECDSA_SIG_free(s); free(data); #elif defined(USE_MBEDTLS) unsigned char *p = *sig; const unsigned char *end = p + *sig_size; size_t len; r = mbedtls_asn1_get_tag(&p, end, &len, MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE); if (r != 0) { warnx("ec_decode: mbedtls_asn1_get_tag failed: %s", _mbedtls_strerror(r)); return false; } if (p + len != end) { warnx("ec_decode: signature lenght mismatch"); return false; } unsigned char *tmp = calloc(1, 2*hash_size); if (!tmp) { warn("ec_decode: calloc failed"); return false; } r = mbedtls_asn1_get_tag(&p, end, &len, MBEDTLS_ASN1_INTEGER); if (r != 0) { warnx("ec_decode: mbedtls_asn1_get_tag failed: %s", _mbedtls_strerror(r)); free(tmp); return false; } if (len >= hash_size) { memcpy(tmp, p + len - hash_size, hash_size); } else { memcpy(tmp + hash_size - len, p, len); } p += len; r = mbedtls_asn1_get_tag(&p, end, &len, MBEDTLS_ASN1_INTEGER); if (r != 0) { warnx("ec_decode: mbedtls_asn1_get_tag failed: %s", _mbedtls_strerror(r)); free(tmp); return false; } if (len >= hash_size) { memcpy(tmp + hash_size, p + len - hash_size, hash_size); } else { memcpy(tmp + 2*hash_size - len, p, len); } #endif free(*sig); *sig = tmp; *sig_size = 2*hash_size; return true; } char *jws_encode(const char *protected, const char *payload, privkey_t key) { char *jws = NULL; char *encoded_payload = encode_base64url(payload); char *encoded_protected = encode_base64url(protected); char *encoded_combined = NULL; unsigned char *signature = NULL; size_t signature_size = 0; char *encoded_signature = NULL; size_t hash_size = 0; #if defined(USE_GNUTLS) gnutls_digest_algorithm_t hash_type; #elif defined(USE_OPENSSL) EVP_MD_CTX *emc = NULL; const EVP_MD *hash_type; unsigned int len; #elif defined(USE_MBEDTLS) mbedtls_md_type_t hash_type; unsigned char *hash = NULL; #endif if (!encoded_payload || !encoded_protected) { warnx("jws_encode: encode_base64url failed"); goto out; } if (asprintf(&encoded_combined, "%s.%s", encoded_protected, encoded_payload) < 0) { warnx("jws_encode: asprintf failed"); encoded_combined = NULL; goto out; } switch (key_type(key)) { case PK_RSA: hash_size = 32; #if defined(USE_GNUTLS) hash_type = GNUTLS_DIG_SHA256; #elif defined(USE_OPENSSL) hash_type = EVP_sha256(); #elif defined(USE_MBEDTLS) hash_type = MBEDTLS_MD_SHA256; #endif break; case PK_EC: switch (ec_params(key, NULL, NULL)) { case 0: warnx("jws_encode: ec_params failed"); goto out; case 256: hash_size = 32; #if defined(USE_GNUTLS) hash_type = GNUTLS_DIG_SHA256; #elif defined(USE_OPENSSL) hash_type = EVP_sha256(); #elif defined(USE_MBEDTLS) hash_type = MBEDTLS_MD_SHA256; #endif break; case 384: hash_size = 48; #if defined(USE_GNUTLS) hash_type = GNUTLS_DIG_SHA384; #elif defined(USE_OPENSSL) hash_type = EVP_sha384(); #elif defined(USE_MBEDTLS) hash_type = MBEDTLS_MD_SHA384; #endif break; default: warnx("jws_encode: unsupported EC curve"); goto out; } break; default: warnx("jws_encode: only RSA/EC keys are supported"); goto out; } #if defined(USE_GNUTLS) gnutls_datum_t data = { (unsigned char *)encoded_combined, strlen(encoded_combined)}; gnutls_datum_t sign = {NULL, 0}; int r = gnutls_privkey_sign_data(key, hash_type, 0, &data, &sign); if (r != GNUTLS_E_SUCCESS) { warnx("jws_encode: gnutls_privkey_sign_data: %s", gnutls_strerror(r)); goto out; } signature_size = sign.size; signature = gnutls_datum_data(&sign, true); if (!signature) { warnx("jws_encode: gnutls_datum_data failed"); goto out; } #elif defined(USE_OPENSSL) emc = EVP_MD_CTX_create(); if (!emc) { openssl_error("jws_encode"); goto out; } signature = calloc(1, EVP_PKEY_size(key)); if (!signature) { warn("jws_encode: calloc failed"); goto out; } if (!EVP_SignInit_ex(emc, hash_type, NULL)) { openssl_error("jws_encode"); goto out; } if (!EVP_SignUpdate(emc, encoded_combined, strlen(encoded_combined))) { openssl_error("jws_encode"); goto out; } if (!EVP_SignFinal(emc, signature, &len, key)) { openssl_error("jws_encode"); goto out; } signature_size = len; #elif defined(USE_MBEDTLS) hash = calloc(1, hash_size); if (!hash) { warn("jws_encode: calloc failed"); goto out; } int r = mbedtls_hash_fast(hash_type, encoded_combined, strlen(encoded_combined), hash); if (r != 0) { warnx("jws_encode: mbedtls_hash_fast failed: %s", _mbedtls_strerror(r)); goto out; } switch (mbedtls_pk_get_type(key)) { case MBEDTLS_PK_RSA: signature = calloc(1, mbedtls_pk_get_len(key)); break; case MBEDTLS_PK_ECKEY: signature = calloc(1, 9+2*mbedtls_pk_get_len(key)); break; default: warnx("jws_encode: only RSA/EC keys are supported"); goto out; } if (!signature) { warn("jws_encode: calloc failed"); goto out; } r = mbedtls_pk_sign(key, hash_type, hash, hash_size, signature, &signature_size, mbedtls_ctr_drbg_random, &ctr_drbg); if (r != 0) { warnx("jws_encode: mbedtls_pk_sign failed: %s", _mbedtls_strerror(r)); goto out; } #endif if (key_type(key) == PK_EC && !ec_decode(hash_size, &signature, &signature_size)) { warnx("jws_encode: ec_decode failed"); goto out; } size_t encoded_signature_len = base64_ENCODED_LEN(signature_size, base64_VARIANT_URLSAFE_NO_PADDING); encoded_signature = calloc(1, encoded_signature_len); if (!encoded_signature) { warn("jws_encode: calloc failed"); goto out; } if (!bin2base64(encoded_signature, encoded_signature_len, signature, signature_size, base64_VARIANT_URLSAFE_NO_PADDING)) { warnx("jws_encode: bin2base64 failed"); goto out; } if (asprintf(&jws, "{\"protected\":\"%s\"," "\"payload\":\"%s\"," "\"signature\":\"%s\"}", encoded_protected, encoded_payload, encoded_signature) < 0) { warnx("jws_encode: asprintf failed"); jws = NULL; } out: #if defined(USE_OPENSSL) if (emc) EVP_MD_CTX_destroy(emc); #elif defined(USE_MBEDTLS) free(hash); #endif free(encoded_payload); free(encoded_protected); free(encoded_combined); free(encoded_signature); free(signature); return jws; } static bool key_gen(keytype_t type, int bits, const char *keyfile) { bool success = false; int r; #if !defined(USE_OPENSSL) void *pem_data = NULL; size_t pem_size = 0; #endif #if defined(USE_GNUTLS) gnutls_x509_privkey_t key = NULL; r = gnutls_x509_privkey_init(&key); if (r != GNUTLS_E_SUCCESS) { warnx("key_gen: gnutls_x509_privkey_init: %s", gnutls_strerror(r)); goto out; } switch (type) { case PK_RSA: msg(1, "generating new %d-bit RSA key", bits); r = gnutls_x509_privkey_generate(key, GNUTLS_PK_RSA, bits, 0); break; case PK_EC: switch (bits) { case 256: msg(1, "generating new %d-bit EC key", bits); r = gnutls_x509_privkey_generate(key, GNUTLS_PK_EC, GNUTLS_CURVE_TO_BITS(GNUTLS_ECC_CURVE_SECP256R1), 0); break; case 384: msg(1, "generating new %d-bit EC key", bits); r = gnutls_x509_privkey_generate(key, GNUTLS_PK_EC, GNUTLS_CURVE_TO_BITS(GNUTLS_ECC_CURVE_SECP384R1), 0); break; default: warnx("key_gen: EC key size must be either 256 or 384"); goto out; } break; default: warnx("key_gen: only RSA/EC keys are supported"); goto out; } if (r != GNUTLS_E_SUCCESS) { warnx("key_gen: gnutls_x509_privkey_generate: %s", gnutls_strerror(r)); goto out; } gnutls_datum_t data = {NULL, 0}; r = gnutls_x509_privkey_export2(key, GNUTLS_X509_FMT_PEM, &data); if (r != GNUTLS_E_SUCCESS) { warnx("key_gen: gnutls_x509_privkey_export2: %s", gnutls_strerror(r)); goto out; } pem_size = data.size; pem_data = gnutls_datum_data(&data, true); if (!pem_data) { warnx("key_gen: gnutls_datum_data failed"); goto out; } #elif defined(USE_OPENSSL) EVP_PKEY *key = NULL; EVP_PKEY_CTX *epc = NULL; switch (type) { case PK_RSA: epc = EVP_PKEY_CTX_new_id(EVP_PKEY_RSA, NULL); break; case PK_EC: epc = EVP_PKEY_CTX_new_id(EVP_PKEY_EC, NULL); break; default: warnx("key_gen: only RSA/EC keys are supported"); goto out; } if (!epc) { openssl_error("key_gen"); goto out; } if (!EVP_PKEY_keygen_init(epc)) { openssl_error("key_gen"); goto out; } switch (type) { case PK_RSA: msg(1, "generating new %d-bit RSA key", bits); if (!EVP_PKEY_CTX_set_rsa_keygen_bits(epc, bits)) { openssl_error("key_gen"); goto out; } break; case PK_EC: switch (bits) { case 256: msg(1, "generating new %d-bit EC key", bits); if (!EVP_PKEY_CTX_set_ec_paramgen_curve_nid(epc, NID_X9_62_prime256v1)) { openssl_error("key_gen"); goto out; } break; case 384: msg(1, "generating new %d-bit EC key", bits); if (!EVP_PKEY_CTX_set_ec_paramgen_curve_nid(epc, NID_secp384r1)) { openssl_error("key_gen"); goto out; } break; default: warnx("key_gen: EC key size must be either 256 or 384"); goto out; } break; default: warnx("key_gen: only RSA/EC keys are supported"); goto out; } if (!EVP_PKEY_keygen(epc, &key)) { openssl_error("key_gen"); goto out; } #elif defined(USE_MBEDTLS) mbedtls_pk_context key; mbedtls_pk_init(&key); const mbedtls_pk_info_t *pki; switch (type) { case PK_RSA: pki = mbedtls_pk_info_from_type(MBEDTLS_PK_RSA); break; case PK_EC: pki = mbedtls_pk_info_from_type(MBEDTLS_PK_ECKEY); break; default: warnx("key_gen: only RSA/EC keys are supported"); goto out; } if (!pki) { warnx("key_gen: mbedtls_pk_info_from_type failed"); goto out; } r = mbedtls_pk_setup(&key, pki); if (r) { warnx("key_gen: mbedtls_pk_setup failed: %s", _mbedtls_strerror(r)); goto out; } switch (type) { case PK_RSA: msg(1, "generating new %d-bit RSA key", bits); r = mbedtls_rsa_gen_key(mbedtls_pk_rsa(key), mbedtls_ctr_drbg_random, &ctr_drbg, bits, 65537); if (r) { warnx("key_gen: mbedtls_rsa_gen_key failed: %s", _mbedtls_strerror(r)); goto out; } break; case PK_EC: switch (bits) { case 256: msg(1, "generating new %d-bit EC key", bits); r = mbedtls_ecp_gen_key(MBEDTLS_ECP_DP_SECP256R1, mbedtls_pk_ec(key), mbedtls_ctr_drbg_random, &ctr_drbg); break; case 384: msg(1, "generating new %d-bit EC key", bits); r = mbedtls_ecp_gen_key(MBEDTLS_ECP_DP_SECP384R1, mbedtls_pk_ec(key), mbedtls_ctr_drbg_random, &ctr_drbg); break; default: warnx("key_gen: EC key size must be either 256 or 384"); goto out; } if (r) { warnx("key_gen: mbedtls_ecp_gen_key failed: %s", _mbedtls_strerror(r)); goto out; } break; default: warnx("key_gen: only RSA/EC keys are supported"); goto out; } pem_size = 4096; while (1) { pem_data = calloc(1, pem_size); if (!pem_data) { warn("key_gen: calloc failed"); goto out; } r = mbedtls_pk_write_key_pem(&key, pem_data, pem_size); if (r == 0) { break; } else if (r == MBEDTLS_ERR_BASE64_BUFFER_TOO_SMALL) { free(pem_data); pem_size *= 2; } else { warnx("key_gen: mbedtls_pk_write_key_pem failed: %s", _mbedtls_strerror(r)); goto out; } } pem_size = strlen(pem_data); #endif mode_t prev = umask((S_IWUSR | S_IXUSR) | S_IRWXG | S_IRWXO); FILE *f = fopen(keyfile, "w"); if (!f) { warn("key_gen: failed to create %s", keyfile); umask(prev); goto out; } umask(prev); #if defined(USE_OPENSSL) r = PEM_write_PrivateKey(f, key, NULL, NULL, 0, NULL, NULL); fclose(f); if (!r) { openssl_error("key_gen"); warnx("key_gen: failed to write %s", keyfile); unlink(keyfile); goto out; } #else r = fwrite(pem_data, 1, pem_size, f); fclose(f); if (r != (int)pem_size) { warn("key_gen: failed to write to %s", keyfile); unlink(keyfile); goto out; } #endif msg(1, "key saved to %s", keyfile); success = true; out: #if defined(USE_GNUTLS) gnutls_x509_privkey_deinit(key); free(pem_data); #elif defined(USE_OPENSSL) if (key) EVP_PKEY_free(key); if (epc) EVP_PKEY_CTX_free(epc); #elif defined(USE_MBEDTLS) mbedtls_pk_free(&key); free(pem_data); #endif return success; } privkey_t key_load(keytype_t type, int bits, const char *format, ...) { privkey_t key = NULL; char *keyfile = NULL; #if !defined(USE_OPENSSL) int r; void *keydata = NULL; size_t keysize = 0; #endif va_list ap; va_start(ap, format); if (vasprintf(&keyfile, format, ap) < 0) { keyfile = NULL; } va_end(ap); if (!keyfile) { warnx("key_load: vasprintf failed"); goto out; } msg(1, "loading key from %s", keyfile); #if defined(USE_OPENSSL) while (!key) { FILE *f = fopen(keyfile, "r"); if (!f) { if (errno != ENOENT) { warn("key_load: failed to open %s", keyfile); goto out; } else { msg(1, "%s not found", keyfile); if (type == PK_NONE) { warnx("key_load: %s does not exist", keyfile); goto out; } if (!key_gen(type, bits, keyfile)) { warnx("key_load: key_gen failed"); goto out; } } } else { key = PEM_read_PrivateKey(f, NULL, NULL, NULL); fclose(f); if (!key) { openssl_error("key_load"); warnx("key_load: failed to read %s", keyfile); goto out; } } } #else while (!(keydata = read_file(keyfile, &keysize))) { if (errno != ENOENT) { warn("key_load: failed to read %s", keyfile); goto out; } else { msg(1, "%s not found", keyfile); if (type == PK_NONE) { warnx("key_load: %s does not exist", keyfile); goto out; } if (!key_gen(type, bits, keyfile)) { warnx("key_load: key_gen failed"); goto out; } } } #endif #if defined(USE_GNUTLS) r = gnutls_privkey_init(&key); if (r != GNUTLS_E_SUCCESS) { warnx("key_load: gnutls_privkey_import_x509_raw: %s", gnutls_strerror(r)); goto out; } gnutls_datum_t data = {keydata, keysize}; r = gnutls_privkey_import_x509_raw(key, &data, GNUTLS_X509_FMT_PEM, NULL, 0); if (r != GNUTLS_E_SUCCESS) { warnx("key_load: gnutls_privkey_import_x509_raw: %s", gnutls_strerror(r)); gnutls_privkey_deinit(key); key = NULL; goto out; } r = gnutls_privkey_verify_params(key); if (r != GNUTLS_E_SUCCESS) { warnx("key_load: gnutls_privkey_verify_params: %s", gnutls_strerror(r)); gnutls_privkey_deinit(key); key = NULL; goto out; } #elif defined(USE_MBEDTLS) key = calloc(1, sizeof(*key)); if (!key) { warn("key_load: calloc failed"); goto out; } mbedtls_pk_init(key); r = mbedtls_pk_parse_key(key, keydata, keysize+1, NULL, 0); if (r) { warnx("key_load: mbedtls_pk_parse failed: %s", _mbedtls_strerror(r)); free(key); key = NULL; goto out; } #endif switch (key_type(key)) { case PK_RSA: if (!rsa_params(key, NULL, NULL)) { warnx("key_load: invalid key"); privkey_deinit(key); key = NULL; } break; case PK_EC: if (!ec_params(key, NULL, NULL)) { warnx("key_load: invalid key"); privkey_deinit(key); key = NULL; } break; default: warnx("key_load: only RSA/EC keys are supported"); privkey_deinit(key); key = NULL; } out: free(keyfile); #if !defined(USE_OPENSSL) free(keydata); #endif return key; } char *csr_gen(const char * const *names, bool status_req, privkey_t key) { char *req = NULL; unsigned char *csrdata = NULL; size_t csrsize = 0; int r; #if defined(USE_GNUTLS) unsigned int key_usage = 0; gnutls_digest_algorithm_t hash_type; gnutls_pubkey_t pubkey = NULL; gnutls_x509_crq_t crq = NULL; #if HAVE_GNUTLS_X509_CRQ_SET_TLSFEATURES gnutls_x509_tlsfeatures_t tls_features = NULL; #endif #elif defined(USE_OPENSSL) const char *key_usage = NULL; const EVP_MD *hash_type; X509_REQ *crq = NULL; X509_NAME *name = NULL; STACK_OF(X509_EXTENSION) *exts = NULL; char *san = NULL; #elif defined(USE_MBEDTLS) unsigned int key_usage = 0; mbedtls_md_type_t hash_type; size_t buflen = 1024; unsigned char *buf = NULL; char *cn = NULL; mbedtls_x509write_csr csr; mbedtls_x509write_csr_init(&csr); #endif switch (key_type(key)) { case PK_RSA: #if defined(USE_GNUTLS) key_usage = GNUTLS_KEY_DIGITAL_SIGNATURE | GNUTLS_KEY_KEY_ENCIPHERMENT; hash_type = GNUTLS_DIG_SHA256; #elif defined(USE_OPENSSL) key_usage = "critical, digitalSignature, keyEncipherment"; hash_type = EVP_sha256(); #elif defined(USE_MBEDTLS) key_usage = MBEDTLS_X509_KU_DIGITAL_SIGNATURE | MBEDTLS_X509_KU_KEY_ENCIPHERMENT; hash_type = MBEDTLS_MD_SHA256; #endif break; case PK_EC: #if defined(USE_GNUTLS) key_usage = GNUTLS_KEY_DIGITAL_SIGNATURE; #elif defined(USE_OPENSSL) key_usage = "critical, digitalSignature"; #elif defined(USE_MBEDTLS) key_usage = MBEDTLS_X509_KU_DIGITAL_SIGNATURE; #endif switch (ec_params(key, NULL, NULL)) { case 0: warnx("csr_gen: ec_params failed"); goto out; case 256: #if defined(USE_GNUTLS) hash_type = GNUTLS_DIG_SHA256; #elif defined(USE_OPENSSL) hash_type = EVP_sha256(); #elif defined(USE_MBEDTLS) hash_type = MBEDTLS_MD_SHA256; #endif break; case 384: #if defined(USE_GNUTLS) hash_type = GNUTLS_DIG_SHA384; #elif defined(USE_OPENSSL) hash_type = EVP_sha384(); #elif defined(USE_MBEDTLS) hash_type = MBEDTLS_MD_SHA384; #endif break; default: warnx("csr_gen: unsupported EC curve"); goto out; } break; default: warnx("csr_gen: only RSA/EC keys are supported"); goto out; } #if defined(USE_GNUTLS) r = gnutls_x509_crq_init(&crq); if (r != GNUTLS_E_SUCCESS) { warnx("csr_gen: gnutls_x509_crq_init: %s", gnutls_strerror(r)); goto out; } r = gnutls_x509_crq_set_dn_by_oid(crq, GNUTLS_OID_X520_COMMON_NAME, 0, *names, strlen(*names)); if (r != GNUTLS_E_SUCCESS) { warnx("csr_gen: gnutls_x509_crq_set_dn_by_oid: %s", gnutls_strerror(r)); goto out; } while (*names) { r = gnutls_x509_crq_set_subject_alt_name(crq, GNUTLS_SAN_DNSNAME, *names, strlen(*names), GNUTLS_FSAN_APPEND); if (r != GNUTLS_E_SUCCESS) { warnx("csr_gen: gnutls_x509_set_subject_alt_name: %s", gnutls_strerror(r)); goto out; } names++; } r = gnutls_x509_crq_set_key_usage(crq, key_usage); if (r != GNUTLS_E_SUCCESS) { warnx("csr_gen: gnutls_x509_crq_set_key_usage: %s", gnutls_strerror(r)); goto out; } if (status_req) { #if HAVE_GNUTLS_X509_CRQ_SET_TLSFEATURES r = gnutls_x509_tlsfeatures_init(&tls_features); if (r != GNUTLS_E_SUCCESS) { warnx("csr_gen: gnutls_x509_tlsfeatures_init: %s", gnutls_strerror(r)); goto out; } // status_request TLS feature (OCSP Must-Staple) r = gnutls_x509_tlsfeatures_add(tls_features, 5); if (r != GNUTLS_E_SUCCESS) { warnx("csr_gen: gnutls_x509_tlsfeatures_add: %s", gnutls_strerror(r)); goto out; } r = gnutls_x509_crq_set_tlsfeatures(crq, tls_features); if (r != GNUTLS_E_SUCCESS) { warnx("csr_gen: gnutls_x509_set_tlsfeatures: %s", gnutls_strerror(r)); goto out; } #else warnx("csr_gen: -m, --must-staple disabled at compile time " "- consider recompiling with GnuTLS 3.5.1 or later"); goto out; #endif } r = gnutls_pubkey_init(&pubkey); if (r != GNUTLS_E_SUCCESS) { warnx("csr_gen: gnutls_pubkey_init: %s", gnutls_strerror(r)); goto out; } r = gnutls_pubkey_import_privkey(pubkey, key, 0, 0); if (r != GNUTLS_E_SUCCESS) { warnx("csr_gen: gnutls_pubkey_import_privkey: %s", gnutls_strerror(r)); goto out; } r = gnutls_x509_crq_set_pubkey(crq, pubkey); if (r != GNUTLS_E_SUCCESS) { warnx("csr_gen: gnutls_x509_crq_set_pubkey: %s", gnutls_strerror(r)); goto out; } gnutls_digest_algorithm_t dig; unsigned int mand; r = gnutls_pubkey_get_preferred_hash_algorithm(pubkey, &dig, &mand); if (r != GNUTLS_E_SUCCESS) { warnx("csr_gen: gnutls_pubkey_get_preferred_hash_algorithm: %s", gnutls_strerror(r)); goto out; } if (mand == 0) { dig = hash_type; } else if (dig != hash_type) { warnx("csr_gen: unsupported message digest"); goto out; } r = gnutls_x509_crq_privkey_sign(crq, key, dig, 0); if (r != GNUTLS_E_SUCCESS) { warnx("csr_gen: gnutls_crq_privkey_sign: %s", gnutls_strerror(r)); goto out; } gnutls_datum_t data = {NULL, 0}; r = gnutls_x509_crq_export2(crq, GNUTLS_X509_FMT_DER, &data); if (r != GNUTLS_E_SUCCESS) { warnx("csr_gen: gnutls_x509_crq_export2: %s", gnutls_strerror(r)); goto out; } csrsize = data.size; csrdata = gnutls_datum_data(&data, true); if (!csrdata) { warnx("csr_gen: gnutls_datum_data failed"); goto out; } #elif defined(USE_OPENSSL) if (!(crq = X509_REQ_new())) { openssl_error("csr_gen"); goto out; } if (!(name = X509_NAME_new())) { openssl_error("csr_gen"); goto out; } if (!X509_REQ_set_pubkey(crq, key)) { openssl_error("csr_gen"); goto out; } if (!X509_NAME_add_entry_by_txt(name, "CN", MBSTRING_ASC, (unsigned char *)*names, -1, -1, 0)) { openssl_error("csr_gen"); goto out; } if (!X509_REQ_set_subject_name(crq, name)) { openssl_error("csr_gen"); goto out; } if (asprintf(&san, "DNS:%s", *names++) < 0) { warnx("csr_gen: asprintf failed"); san = NULL; goto out; } while (*names) { char *tmp = NULL; if (asprintf(&tmp, "%s,DNS:%s", san, *names) < 0) { warnx("csr_gen: asprintf failed"); goto out; } free(san); san = tmp; names++; } exts = sk_X509_EXTENSION_new_null(); if (!exts) { openssl_error("csr_gen"); goto out; } X509_EXTENSION *ext = X509V3_EXT_conf_nid(NULL, NULL, NID_subject_alt_name, san); if (!ext) { openssl_error("csr_gen"); goto out; } sk_X509_EXTENSION_push(exts, ext); ext = X509V3_EXT_conf_nid(NULL, NULL, NID_key_usage, key_usage); if (!ext) { openssl_error("csr_gen"); goto out; } sk_X509_EXTENSION_push(exts, ext); if (status_req) { ext = X509V3_EXT_conf_nid(NULL, NULL, NID_tlsfeature, "status_request"); if (!ext) { openssl_error("csr_gen"); goto out; } sk_X509_EXTENSION_push(exts, ext); } if (!X509_REQ_add_extensions(crq, exts)) { openssl_error("csr_gen"); goto out; } if (!X509_REQ_sign(crq, key, hash_type)) { openssl_error("csr_gen"); goto out; } r = i2d_X509_REQ(crq, NULL); if (r < 0) { openssl_error("csr_gen"); goto out; } csrsize = r; csrdata = calloc(1, csrsize); if (!csrdata) { warn("csr_gen: calloc failed"); goto out; } unsigned char *tmp = csrdata; if (i2d_X509_REQ(crq, &tmp) != (int)csrsize) { openssl_error("csr_gen"); goto out; } #elif defined(USE_MBEDTLS) mbedtls_x509write_csr_set_key(&csr, key); mbedtls_x509write_csr_set_md_alg(&csr, hash_type); if (asprintf(&cn, "CN=%s", *names) < 0) { warnx("csr_gen: asprintf failed"); cn = NULL; goto out; } r = mbedtls_x509write_csr_set_key_usage(&csr, key_usage); if (r) { warnx("csr_gen: mbedtls_x509write_csr_set_key_usage failed: %s", _mbedtls_strerror(r)); goto out; } r = mbedtls_x509write_csr_set_subject_name(&csr, cn); if (r) { warnx("csr_gen: mbedtls_x509write_csr_set_subject_name failed: %s", _mbedtls_strerror(r)); goto out; } while (1) { buflen *= 2; free(buf); buf = calloc(1, buflen); if (!buf) { warn("csr_gen: calloc failed"); goto out; } unsigned char *p = buf + buflen; size_t len = 0; size_t count = 0; while (names[count]) count++; while (count) { count--; r = mbedtls_asn1_write_raw_buffer(&p, buf, (const unsigned char *)names[count], strlen(names[count])); if (r >= 0) { len += r; } else if (r == MBEDTLS_ERR_ASN1_BUF_TOO_SMALL) { break; } else { warnx("csr_gen: mbedtls_asn1_write_raw_buffer failed: %s", _mbedtls_strerror(r)); goto out; } r = mbedtls_asn1_write_len(&p, buf, strlen(names[count])); if (r >= 0) { len += r; } else if (r == MBEDTLS_ERR_ASN1_BUF_TOO_SMALL) { break; } else { warnx("csr_gen: mbedtls_asn1_write_len failed: %s", _mbedtls_strerror(r)); goto out; } r = mbedtls_asn1_write_tag(&p, buf, MBEDTLS_ASN1_CONTEXT_SPECIFIC|2); if (r >= 0) { len += r; } else if (r == MBEDTLS_ERR_ASN1_BUF_TOO_SMALL) { break; } else { warnx("csr_gen: mbedtls_asn1_write_tag failed: %s", _mbedtls_strerror(r)); goto out; } } if (r == MBEDTLS_ERR_ASN1_BUF_TOO_SMALL) { continue; } r = mbedtls_asn1_write_len(&p, buf, len); if (r >= 0) { len += r; } else if (r == MBEDTLS_ERR_ASN1_BUF_TOO_SMALL) { continue; } else { warnx("csr_gen: mbedtls_asn1_write_len failed: %s", _mbedtls_strerror(r)); goto out; } r = mbedtls_asn1_write_tag(&p, buf, MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE); if (r >= 0) { len += r; } else if (r == MBEDTLS_ERR_ASN1_BUF_TOO_SMALL) { continue; } else { warnx("csr_gen: mbedtls_asn1_write_tag failed: %s", _mbedtls_strerror(r)); goto out; } r = mbedtls_x509write_csr_set_extension(&csr, MBEDTLS_OID_SUBJECT_ALT_NAME, MBEDTLS_OID_SIZE(MBEDTLS_OID_SUBJECT_ALT_NAME), buf + buflen - len, len); if (r) { warnx("csr_gen: mbedtls_x509write_csr_set_extension failed: %s", _mbedtls_strerror(r)); goto out; } if (!status_req) { break; } p = buf + buflen; len = 0; // status_request TLS feature (OCSP Must-Staple) r = mbedtls_asn1_write_int(&p, buf, 5); if (r >= 0) { len += r; } else if (r == MBEDTLS_ERR_ASN1_BUF_TOO_SMALL) { continue; } else { warnx("csr_gen: mbedtls_asn1_write_int failed: %s", _mbedtls_strerror(r)); goto out; } r = mbedtls_asn1_write_len(&p, buf, len); if (r >= 0) { len += r; } else if (r == MBEDTLS_ERR_ASN1_BUF_TOO_SMALL) { continue; } else { warnx("csr_gen: mbedtls_asn1_write_len failed: %s", _mbedtls_strerror(r)); goto out; } r = mbedtls_asn1_write_tag(&p, buf, MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE); if (r >= 0) { len += r; } else if (r == MBEDTLS_ERR_ASN1_BUF_TOO_SMALL) { continue; } else { warnx("csr_gen: mbedtls_asn1_write_tag failed: %s", _mbedtls_strerror(r)); goto out; } r = mbedtls_x509write_csr_set_extension(&csr, // http://oid-info.com/get/1.3.6.1.5.5.7.1.24 // pe(1) id-pe-tlsfeature(24) MBEDTLS_OID_PKIX "\x01\x18", MBEDTLS_OID_SIZE(MBEDTLS_OID_PKIX "\x01\x18"), buf + buflen - len, len); if (r) { warnx("csr_gen: mbedtls_x509write_csr_set_extension failed: %s", _mbedtls_strerror(r)); goto out; } break; } while (1) { r = mbedtls_x509write_csr_der(&csr, buf, buflen, mbedtls_ctr_drbg_random, &ctr_drbg); if (r > 0) { break; } else if (r == MBEDTLS_ERR_ASN1_BUF_TOO_SMALL) { free(buf); buflen *= 2; buf = calloc(1, buflen); if (!buf) { warn("csr_gen: calloc failed"); goto out; } } else { warnx("csr_gen: mbedtls_x509write_csr_der failed: %s", _mbedtls_strerror(r)); goto out; } } csrsize = r; csrdata = calloc(1, csrsize); if (!csrdata) { warn("csr_gen: calloc failed"); goto out; } memcpy(csrdata, buf + buflen - csrsize, csrsize); #endif r = base64_ENCODED_LEN(csrsize, base64_VARIANT_URLSAFE_NO_PADDING); if (!(req = calloc(1, r))) { warn("csr_gen: calloc failed"); goto out; } if (!bin2base64(req, r, csrdata, csrsize, base64_VARIANT_URLSAFE_NO_PADDING)) { warnx("csr_gen: bin2base64 failed"); free(req); req = NULL; goto out; } out: #if defined(USE_GNUTLS) gnutls_pubkey_deinit(pubkey); #if HAVE_GNUTLS_X509_CRQ_SET_TLSFEATURES if (tls_features) { gnutls_x509_tlsfeatures_deinit(tls_features); } #endif gnutls_x509_crq_deinit(crq); #elif defined(USE_OPENSSL) if (name) X509_NAME_free(name); if (req) X509_REQ_free(crq); if (exts) sk_X509_EXTENSION_pop_free(exts, X509_EXTENSION_free); free(san); #elif defined(USE_MBEDTLS) mbedtls_x509write_csr_free(&csr); free(buf); free(cn); #endif free(csrdata); return req; } #if defined(USE_GNUTLS) static gnutls_x509_crt_t cert_load(const char *format, ...) { gnutls_x509_crt_t crt = NULL; #elif defined(USE_OPENSSL) static X509 *cert_load(const char *format, ...) { X509 *crt = NULL; #elif defined(USE_MBEDTLS) static mbedtls_x509_crt *cert_load(const char *format, ...) { mbedtls_x509_crt *crt = NULL; #endif char *certfile = NULL; #if !defined(USE_OPENSSL) void *certdata = NULL; size_t certsize = 0; int r; #endif va_list ap; va_start(ap, format); if (vasprintf(&certfile, format, ap) < 0) { certfile = NULL; } va_end(ap); if (!certfile) { warnx("cert_load: vasprintf failed"); goto out; } #if defined(USE_OPENSSL) FILE *f = NULL; if (!(f = fopen(certfile, "r"))) { if (errno == ENOENT) { msg(1, "%s does not exist", certfile); } else { warn("cert_load: failed to open %s", certfile); } goto out; } crt = PEM_read_X509(f, NULL, NULL, NULL); fclose(f); if (!crt) { openssl_error("cert_load"); warnx("cert_load: failed to load %s", certfile); goto out; } #else certdata = read_file(certfile, &certsize); if (!certdata) { if (errno == ENOENT) { msg(1, "%s does not exist", certfile); } else { warn("cert_load: failed to read %s", certfile); } goto out; } #endif #if defined(USE_GNUTLS) gnutls_datum_t data = {certdata, certsize}; r = gnutls_x509_crt_init(&crt); if (r != GNUTLS_E_SUCCESS) { warnx("cert_load: gnutls_x509_crt_init: %s", gnutls_strerror(r)); gnutls_x509_crt_deinit(crt); crt = NULL; goto out; } r = gnutls_x509_crt_import(crt, &data, GNUTLS_X509_FMT_PEM); if (r != GNUTLS_E_SUCCESS) { warnx("cert_load: gnutls_x509_crt_import: %s", gnutls_strerror(r)); gnutls_x509_crt_deinit(crt); crt = NULL; goto out; } #elif defined(USE_MBEDTLS) crt = calloc(1, sizeof(*crt)); if (!crt) { warn("cert_load: calloc failed"); goto out; } mbedtls_x509_crt_init(crt); r = mbedtls_x509_crt_parse(crt, certdata, certsize+1); if (r < 0) { warnx("cert_load: mbedtls_x509_crt_parse failed: %s", _mbedtls_strerror(r)); mbedtls_x509_crt_free(crt); free(crt); crt = NULL; goto out; } if (r > 0) { warnx("cert_load: failed to parse %d certificates", r); mbedtls_x509_crt_free(crt); free(crt); crt = NULL; goto out; } #endif out: #if !defined(USE_OPENSSL) free(certdata); #endif free(certfile); return crt; } bool cert_valid(const char *certdir, const char * const *names, int validity) { bool valid = false; #if defined(USE_GNUTLS) gnutls_x509_crt_t crt = cert_load("%s/cert.pem", certdir); if (!crt) { goto out; } time_t expiration = gnutls_x509_crt_get_expiration_time(crt); if (expiration == (time_t)-1) { warnx("cert_valid: gnutls_x509_crt_get_expiration_time failed"); goto out; } int days_left = (expiration - time(NULL))/(24*3600); msg(1, "%s/cert.pem expires in %d days", certdir, days_left); if (days_left < validity) { msg(1, "%s/cert.pem is due for renewal", certdir); goto out; } while (names && *names) { if (!gnutls_x509_crt_check_hostname2(crt, *names, GNUTLS_VERIFY_DO_NOT_ALLOW_WILDCARDS)) { msg(1, "%s/cert.pem does not include %s", certdir, *names); goto out; } names++; } valid = true; out: if (crt) { gnutls_x509_crt_deinit(crt); } #elif defined(USE_OPENSSL) GENERAL_NAMES* san = NULL; X509 *crt = cert_load("%s/cert.pem", certdir); if (!crt) { goto out; } int days_left, sec; const ASN1_TIME *tm = X509_get0_notAfter(crt); if (!tm || !ASN1_TIME_diff(&days_left, &sec, NULL, tm)) { warnx("cert_valid: invalid expiration time format in %s/cert.pem", certdir); goto out; } msg(1, "%s/cert.pem expires in %d days", certdir, days_left); if (days_left < validity) { msg(1, "%s/cert.pem is due for renewal", certdir); goto out; } san = X509_get_ext_d2i(crt, NID_subject_alt_name, NULL, NULL); if (!san) { openssl_error("cert_valid"); goto out; } while (names && *names) { bool found = false; int count = sk_GENERAL_NAME_num(san); while (count-- && !found) { GENERAL_NAME* name = sk_GENERAL_NAME_value(san, count); if (name && name->type == GEN_DNS) { unsigned char *s = NULL; int len = ASN1_STRING_to_UTF8(&s, name->d.dNSName); if (s) { char *ss = (char *)s; if ((int)strlen(ss) == len && strcasecmp(ss, *names) == 0) { found = true; } OPENSSL_free(s); } } } if (!found) { msg(1, "%s/cert.pem does not include %s", certdir, *names); goto out; } names++; } valid = true; out: if (crt) X509_free(crt); if (san) GENERAL_NAMES_free(san); #elif defined(USE_MBEDTLS) mbedtls_x509_crt *crt = cert_load("%s/cert.pem", certdir); if (!crt) { goto out; } struct tm texp = { .tm_sec = crt->valid_to.sec, .tm_min = crt->valid_to.min, .tm_hour = crt->valid_to.hour, .tm_mday = crt->valid_to.day, .tm_mon = crt->valid_to.mon - 1, .tm_year = crt->valid_to.year - 1900, .tm_isdst = -1 }; time_t expiration = mktime(&texp); if (expiration == (time_t)-1) { warnx("cert_valid: failed to determine expiration time"); goto out; } int days_left = (expiration - time(NULL))/(24*3600); msg(1, "%s/cert.pem expires in %d days", certdir, days_left); if (days_left < validity) { msg(1, "%s/cert.pem is due for renewal", certdir); goto out; } while (names && *names) { const mbedtls_x509_name *name = NULL; const mbedtls_x509_sequence *cur = NULL; if (crt->ext_types & MBEDTLS_X509_EXT_SUBJECT_ALT_NAME) { for (cur = &crt->subject_alt_names; cur; cur = cur->next) { if (strncasecmp(*names, (const char *)cur->buf.p, strlen(*names)) == 0) { break; } } } else for (name = &crt->subject; name != NULL; name = name->next) { if (MBEDTLS_OID_CMP(MBEDTLS_OID_AT_CN, &name->oid) == 0 && strncasecmp(*names, (const char *)name->val.p, strlen(*names)) == 0) { break; } } if (cur == NULL && name == NULL) { msg(1, "%s/cert.pem does not include %s", certdir, *names); goto out; } names++; } valid = true; out: if (crt) { mbedtls_x509_crt_free(crt); free(crt); } #endif return valid; } char *cert_der_base64url(const char *certfile) { char *ret = NULL; void *certdata = NULL; size_t certsize = 0; int r; #if defined(USE_GNUTLS) gnutls_x509_crt_t crt = cert_load(certfile); if (!crt) { warnx("cert_der_base64url: cert_load failed"); goto out; } gnutls_datum_t data = {NULL, 0}; r = gnutls_x509_crt_export2(crt, GNUTLS_X509_FMT_DER, &data); gnutls_x509_crt_deinit(crt); if (r != GNUTLS_E_SUCCESS) { warnx("cert_der_base64url: gnutls_x509_crt_export2: %s", gnutls_strerror(r)); goto out; } certsize = data.size; certdata = gnutls_datum_data(&data, true); if (!certdata) { goto out; } #elif defined(USE_OPENSSL) X509 *crt = cert_load(certfile); if (!crt) { warnx("cert_der_base64url: cert_load failed"); goto out; } r = i2d_X509(crt, NULL); if (r < 0) { openssl_error("cert_der_base64url"); X509_free(crt); goto out; } certsize = r; certdata = calloc(1, certsize); if (!certdata) { warn("cert_der_base64url: calloc failed"); X509_free(crt); goto out; } unsigned char *tmp = certdata; r = i2d_X509(crt, &tmp); X509_free(crt); if (r != (int)certsize) { openssl_error("cert_der_base64url"); goto out; } #elif defined(USE_MBEDTLS) certdata = read_file(certfile, &certsize); if (!certdata) { warn("cert_der_base64url: error reading %s", certfile); goto out; } mbedtls_pem_context ctx; mbedtls_pem_init(&ctx); size_t len; r = mbedtls_pem_read_buffer(&ctx, "-----BEGIN CERTIFICATE-----", "-----END CERTIFICATE-----", certdata, NULL, 0, &len); if (r) { warnx("cert_der_base64url: mbedtls_pem_read_buffer failed: %s", _mbedtls_strerror(r)); mbedtls_pem_free(&ctx); goto out; } free(certdata); certdata = calloc(1, certsize); if (!certdata) { warn("cert_der_base64url: calloc failed"); mbedtls_pem_free(&ctx); goto out; } memcpy(certdata, ctx.buf, ctx.buflen); certsize = ctx.buflen; mbedtls_pem_free(&ctx); #endif r = base64_ENCODED_LEN(certsize, base64_VARIANT_URLSAFE_NO_PADDING); if (!(ret = calloc(1, r))) { warn("cert_der_base64url: calloc failed"); goto out; } if (!bin2base64(ret, r, certdata, certsize, base64_VARIANT_URLSAFE_NO_PADDING)) { warnx("cert_der_base64url: bin2base64 failed"); free(ret); ret = NULL; goto out; } out: free(certdata); return ret; } uacme-1.0.22/base64.c0000644000000000000000000002564513606613667011037 00000000000000/* * Copyright (C) 2019,2020 Nicola Di Lieto * * This file is part of uacme. * * uacme is free software: you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * uacme is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see * . */ #include #include #include #include #include #include #include #include #include "base64.h" /* Base64 routines adapted from https://www.libsodium.org */ /* * ISC License * * Copyright (c) 2013-2017 * Frank Denis * * Permission to use, copy, modify, and/or distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ /* Derived from original code by CodesInChaos */ char *bin2hex(char *const hex, const size_t hex_maxlen, const unsigned char *const bin, const size_t bin_len) { size_t i = (size_t) 0U; unsigned int x; int b; int c; if (bin_len >= SIZE_MAX / 2 || hex_maxlen <= bin_len * 2U) { errx(2, "bin2hex length wrong"); } while (i < bin_len) { c = bin[i] & 0xf; b = bin[i] >> 4; x = (unsigned char) (87U + c + (((c - 10U) >> 8) & ~38U)) << 8 | (unsigned char) (87U + b + (((b - 10U) >> 8) & ~38U)); hex[i * 2U] = (char) x; x >>= 8; hex[i * 2U + 1U] = (char) x; i++; } hex[i * 2U] = 0U; return hex; } int hex2bin(unsigned char *const bin, const size_t bin_maxlen, const char *const hex, const size_t hex_len, const char *const ignore, size_t *const bin_len, const char **const hex_end) { size_t bin_pos = (size_t) 0U; size_t hex_pos = (size_t) 0U; int ret = 0; unsigned char c; unsigned char c_acc = 0U; unsigned char c_alpha0, c_alpha; unsigned char c_num0, c_num; unsigned char c_val; unsigned char state = 0U; while (hex_pos < hex_len) { c = (unsigned char) hex[hex_pos]; c_num = c ^ 48U; c_num0 = (c_num - 10U) >> 8; c_alpha = (c & ~32U) - 55U; c_alpha0 = ((c_alpha - 10U) ^ (c_alpha - 16U)) >> 8; if ((c_num0 | c_alpha0) == 0U) { if (ignore != NULL && state == 0U && strchr(ignore, c) != NULL) { hex_pos++; continue; } break; } c_val = (c_num0 & c_num) | (c_alpha0 & c_alpha); if (bin_pos >= bin_maxlen) { ret = -1; errno = ERANGE; break; } if (state == 0U) { c_acc = c_val * 16U; } else { bin[bin_pos++] = c_acc | c_val; } state = ~state; hex_pos++; } if (state != 0U) { hex_pos--; errno = EINVAL; ret = -1; } if (ret != 0) { bin_pos = (size_t) 0U; } if (hex_end != NULL) { *hex_end = &hex[hex_pos]; } else if (hex_pos != hex_len) { errno = EINVAL; ret = -1; } if (bin_len != NULL) { *bin_len = bin_pos; } return ret; } /* * Some macros for constant-time comparisons. These work over values in * the 0..255 range. Returned value is 0x00 on "false", 0xFF on "true". * * Original code by Thomas Pornin. */ #define EQ(x, y) \ ((((0U - ((unsigned int) (x) ^ (unsigned int) (y))) >> 8) & 0xFF) ^ 0xFF) #define GT(x, y) ((((unsigned int) (y) - (unsigned int) (x)) >> 8) & 0xFF) #define GE(x, y) (GT(y, x) ^ 0xFF) #define LT(x, y) GT(y, x) #define LE(x, y) GE(y, x) static int b64_byte_to_char(unsigned int x) { return (LT(x, 26) & (x + 'A')) | (GE(x, 26) & LT(x, 52) & (x + ('a' - 26))) | (GE(x, 52) & LT(x, 62) & (x + ('0' - 52))) | (EQ(x, 62) & '+') | (EQ(x, 63) & '/'); } static unsigned int b64_char_to_byte(int c) { const unsigned int x = (GE(c, 'A') & LE(c, 'Z') & (c - 'A')) | (GE(c, 'a') & LE(c, 'z') & (c - ('a' - 26))) | (GE(c, '0') & LE(c, '9') & (c - ('0' - 52))) | (EQ(c, '+') & 62) | (EQ(c, '/') & 63); return x | (EQ(x, 0) & (EQ(c, 'A') ^ 0xFF)); } static int b64_byte_to_urlsafe_char(unsigned int x) { return (LT(x, 26) & (x + 'A')) | (GE(x, 26) & LT(x, 52) & (x + ('a' - 26))) | (GE(x, 52) & LT(x, 62) & (x + ('0' - 52))) | (EQ(x, 62) & '-') | (EQ(x, 63) & '_'); } static unsigned int b64_urlsafe_char_to_byte(int c) { const unsigned x = (GE(c, 'A') & LE(c, 'Z') & (c - 'A')) | (GE(c, 'a') & LE(c, 'z') & (c - ('a' - 26))) | (GE(c, '0') & LE(c, '9') & (c - ('0' - 52))) | (EQ(c, '-') & 62) | (EQ(c, '_') & 63); return x | (EQ(x, 0) & (EQ(c, 'A') ^ 0xFF)); } #define VARIANT_NO_PADDING_MASK 0x2U #define VARIANT_URLSAFE_MASK 0x4U static void base64_check_variant(const int variant) { if ((((unsigned int) variant) & ~ 0x6U) != 0x1U) { errx(2, "base64_check_variant: invalid variant"); } } size_t base64_encoded_len(const size_t bin_len, const int variant) { base64_check_variant(variant); return base64_ENCODED_LEN(bin_len, variant); } char *bin2base64(char * const b64, const size_t b64_maxlen, const unsigned char * const bin, const size_t bin_len, const int variant) { size_t acc_len = (size_t) 0; size_t b64_len; size_t b64_pos = (size_t) 0; size_t bin_pos = (size_t) 0; size_t nibbles; size_t remainder; unsigned int acc = 0U; base64_check_variant(variant); nibbles = bin_len / 3; remainder = bin_len - 3 * nibbles; b64_len = nibbles * 4; if (remainder != 0) { if ((((unsigned int) variant) & VARIANT_NO_PADDING_MASK) == 0U) { b64_len += 4; } else { b64_len += 2 + (remainder >> 1); } } if (b64_maxlen <= b64_len) { errx(2, "bin2base64: maxlen < len"); } if ((((unsigned int) variant) & VARIANT_URLSAFE_MASK) != 0U) { while (bin_pos < bin_len) { acc = (acc << 8) + bin[bin_pos++]; acc_len += 8; while (acc_len >= 6) { acc_len -= 6; b64[b64_pos++] = (char) b64_byte_to_urlsafe_char((acc >> acc_len) & 0x3F); } } if (acc_len > 0) { b64[b64_pos++] = (char) b64_byte_to_urlsafe_char((acc << (6 - acc_len)) & 0x3F); } } else { while (bin_pos < bin_len) { acc = (acc << 8) + bin[bin_pos++]; acc_len += 8; while (acc_len >= 6) { acc_len -= 6; b64[b64_pos++] = (char) b64_byte_to_char((acc >> acc_len) & 0x3F); } } if (acc_len > 0) { b64[b64_pos++] = (char) b64_byte_to_char((acc << (6 - acc_len)) & 0x3F); } } assert(b64_pos <= b64_len); while (b64_pos < b64_len) { b64[b64_pos++] = '='; } do { b64[b64_pos++] = 0U; } while (b64_pos < b64_maxlen); return b64; } static int _base642bin_skip_padding(const char * const b64, const size_t b64_len, size_t * const b64_pos_p, const char * const ignore, size_t padding_len) { int c; while (padding_len > 0) { if (*b64_pos_p >= b64_len) { errno = ERANGE; return -1; } c = b64[*b64_pos_p]; if (c == '=') { padding_len--; } else if (ignore == NULL || strchr(ignore, c) == NULL) { errno = EINVAL; return -1; } (*b64_pos_p)++; } return 0; } int base642bin(unsigned char * const bin, const size_t bin_maxlen, const char * const b64, const size_t b64_len, const char * const ignore, size_t * const bin_len, const char ** const b64_end, const int variant) { size_t acc_len = (size_t) 0; size_t b64_pos = (size_t) 0; size_t bin_pos = (size_t) 0; int is_urlsafe; int ret = 0; unsigned int acc = 0U; unsigned int d; char c; base64_check_variant(variant); is_urlsafe = ((unsigned int) variant) & VARIANT_URLSAFE_MASK; while (b64_pos < b64_len) { c = b64[b64_pos]; if (is_urlsafe) { d = b64_urlsafe_char_to_byte(c); } else { d = b64_char_to_byte(c); } if (d == 0xFF) { if (ignore != NULL && strchr(ignore, c) != NULL) { b64_pos++; continue; } break; } acc = (acc << 6) + d; acc_len += 6; if (acc_len >= 8) { acc_len -= 8; if (bin_pos >= bin_maxlen) { errno = ERANGE; ret = -1; break; } bin[bin_pos++] = (acc >> acc_len) & 0xFF; } b64_pos++; } if (acc_len > 4U || (acc & ((1U << acc_len) - 1U)) != 0U) { ret = -1; } else if (ret == 0 && (((unsigned int) variant) & VARIANT_NO_PADDING_MASK) == 0U) { ret = _base642bin_skip_padding(b64, b64_len, &b64_pos, ignore, acc_len / 2); } if (ret != 0) { bin_pos = (size_t) 0U; } else if (ignore != NULL) { while (b64_pos < b64_len && strchr(ignore, b64[b64_pos]) != NULL) { b64_pos++; } } if (b64_end != NULL) { *b64_end = &b64[b64_pos]; } else if (b64_pos != b64_len) { errno = EINVAL; ret = -1; } if (bin_len != NULL) { *bin_len = bin_pos; } return ret; } char *encode_base64url(const char *str) { size_t encoded_len = base64_ENCODED_LEN(strlen(str), base64_VARIANT_URLSAFE_NO_PADDING); char *encoded = calloc(1, encoded_len); if (!encoded) { return NULL; } return bin2base64(encoded, encoded_len, (const unsigned char *)str, strlen(str), base64_VARIANT_URLSAFE_NO_PADDING); } uacme-1.0.22/COPYING0000644000000000000000000010451313532041502010607 00000000000000 GNU GENERAL PUBLIC LICENSE Version 3, 29 June 2007 Copyright (C) 2007 Free Software Foundation, Inc. Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed. Preamble The GNU General Public License is a free, copyleft license for software and other kinds of works. The licenses for most software and other practical works are designed to take away your freedom to share and change the works. By contrast, the GNU General Public License is intended to guarantee your freedom to share and change all versions of a program--to make sure it remains free software for all its users. We, the Free Software Foundation, use the GNU General Public License for most of our software; it applies also to any other work released this way by its authors. You can apply it to your programs, too. When we speak of free software, we are referring to freedom, not price. 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You may not convey a covered work if you are a party to an arrangement with a third party that is in the business of distributing software, under which you make payment to the third party based on the extent of your activity of conveying the work, and under which the third party grants, to any of the parties who would receive the covered work from you, a discriminatory patent license (a) in connection with copies of the covered work conveyed by you (or copies made from those copies), or (b) primarily for and in connection with specific products or compilations that contain the covered work, unless you entered into that arrangement, or that patent license was granted, prior to 28 March 2007. Nothing in this License shall be construed as excluding or limiting any implied license or other defenses to infringement that may otherwise be available to you under applicable patent law. 12. No Surrender of Others' Freedom. If conditions are imposed on you (whether by court order, agreement or otherwise) that contradict the conditions of this License, they do not excuse you from the conditions of this License. If you cannot convey a covered work so as to satisfy simultaneously your obligations under this License and any other pertinent obligations, then as a consequence you may not convey it at all. For example, if you agree to terms that obligate you to collect a royalty for further conveying from those to whom you convey the Program, the only way you could satisfy both those terms and this License would be to refrain entirely from conveying the Program. 13. Use with the GNU Affero General Public License. Notwithstanding any other provision of this License, you have permission to link or combine any covered work with a work licensed under version 3 of the GNU Affero General Public License into a single combined work, and to convey the resulting work. The terms of this License will continue to apply to the part which is the covered work, but the special requirements of the GNU Affero General Public License, section 13, concerning interaction through a network will apply to the combination as such. 14. Revised Versions of this License. The Free Software Foundation may publish revised and/or new versions of the GNU General Public License from time to time. Such new versions will be similar in spirit to the present version, but may differ in detail to address new problems or concerns. Each version is given a distinguishing version number. If the Program specifies that a certain numbered version of the GNU General Public License "or any later version" applies to it, you have the option of following the terms and conditions either of that numbered version or of any later version published by the Free Software Foundation. If the Program does not specify a version number of the GNU General Public License, you may choose any version ever published by the Free Software Foundation. If the Program specifies that a proxy can decide which future versions of the GNU General Public License can be used, that proxy's public statement of acceptance of a version permanently authorizes you to choose that version for the Program. Later license versions may give you additional or different permissions. However, no additional obligations are imposed on any author or copyright holder as a result of your choosing to follow a later version. 15. Disclaimer of Warranty. THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION. 16. Limitation of Liability. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. 17. Interpretation of Sections 15 and 16. If the disclaimer of warranty and limitation of liability provided above cannot be given local legal effect according to their terms, reviewing courts shall apply local law that most closely approximates an absolute waiver of all civil liability in connection with the Program, unless a warranty or assumption of liability accompanies a copy of the Program in return for a fee. END OF TERMS AND CONDITIONS How to Apply These Terms to Your New Programs If you develop a new program, and you want it to be of the greatest possible use to the public, the best way to achieve this is to make it free software which everyone can redistribute and change under these terms. To do so, attach the following notices to the program. It is safest to attach them to the start of each source file to most effectively state the exclusion of warranty; and each file should have at least the "copyright" line and a pointer to where the full notice is found. Copyright (C) This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . Also add information on how to contact you by electronic and paper mail. If the program does terminal interaction, make it output a short notice like this when it starts in an interactive mode: Copyright (C) This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. This is free software, and you are welcome to redistribute it under certain conditions; type `show c' for details. The hypothetical commands `show w' and `show c' should show the appropriate parts of the General Public License. Of course, your program's commands might be different; for a GUI interface, you would use an "about box". You should also get your employer (if you work as a programmer) or school, if any, to sign a "copyright disclaimer" for the program, if necessary. For more information on this, and how to apply and follow the GNU GPL, see . The GNU General Public License does not permit incorporating your program into proprietary programs. If your program is a subroutine library, you may consider it more useful to permit linking proprietary applications with the library. If this is what you want to do, use the GNU Lesser General Public License instead of this License. But first, please read . uacme-1.0.22/Makefile.in0000644000000000000000000007766413615245147011656 00000000000000# Makefile.in generated by automake 1.14.1 from Makefile.am. # @configure_input@ # Copyright (C) 1994-2013 Free Software Foundation, Inc. # This Makefile.in is free software; the Free Software Foundation # gives unlimited permission to copy and/or distribute it, # with or without modifications, as long as this notice is preserved. # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY, to the extent permitted by law; without # even the implied warranty of MERCHANTABILITY or FITNESS FOR A # PARTICULAR PURPOSE. @SET_MAKE@ # Copyright (C) 2019,2020 Nicola Di Lieto # # This file is part of uacme. # # uacme is free software: you can redistribute it and/or modify it # under the terms of the GNU General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # # uacme is distributed in the hope that it will be useful, but # WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 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