pax_global_header00006660000000000000000000000064141643011760014515gustar00rootroot0000000000000052 comment=3ad093d738e8b78f79b7691a801f09ddceb24c78 vdeplug_agno-0.1.1/000077500000000000000000000000001416430117600141665ustar00rootroot00000000000000vdeplug_agno-0.1.1/CMakeLists.txt000066400000000000000000000024451416430117600167330ustar00rootroot00000000000000cmake_minimum_required(VERSION 3.1) project("vdeplug_agno" DESCRIPTION "libvdeplug plugin module for agno" HOMEPAGE_URL "https://github.com/rd235/vdeplug_agno" VERSION 0.1.1 LANGUAGES C) include(GNUInstallDirs) include(CheckIncludeFile) set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -D_FORTIFY_SOURCE=2 -O2 -pedantic -Wall -Wextra") set(CMAKE_REQUIRED_QUIET TRUE) set(LIBS_REQUIRED vdeplug_mod wolfssl) set(HEADERS_REQUIRED strcase.h libvdeplug.h strcase.h wolfssl/options.h wolfssl/wolfcrypt/aes.h wolfssl/wolfcrypt/random.h) foreach(THISLIB IN LISTS LIBS_REQUIRED) find_library(LIB${THISLIB}_OK ${THISLIB}) if(NOT LIB${THISLIB}_OK) message(FATAL_ERROR "library lib${THISLIB} not found") endif() endforeach(THISLIB) foreach(HEADER IN LISTS HEADERS_REQUIRED) check_include_file(${HEADER} ${HEADER}_OK) if(NOT ${HEADER}_OK) message(FATAL_ERROR "header file ${HEADER} not found") endif() endforeach(HEADER) add_definitions(-D_GNU_SOURCE) include_directories(${CMAKE_CURRENT_SOURCE_DIR}) add_library(vdeplug_agno SHARED libvdeplug_agno.c) target_link_libraries(vdeplug_agno vdeplug_mod wolfssl) install(TARGETS vdeplug_agno DESTINATION ${CMAKE_INSTALL_LIBDIR}/vdeplug) add_subdirectory(man) add_custom_target(uninstall "${CMAKE_COMMAND}" -P "${PROJECT_SOURCE_DIR}/Uninstall.cmake") vdeplug_agno-0.1.1/COPYING000066400000000000000000000636421416430117600152340ustar00rootroot00000000000000 GNU LESSER GENERAL PUBLIC LICENSE Version 2.1, February 1999 Copyright (C) 1991, 1999 Free Software Foundation, Inc. 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed. 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You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA Also add information on how to contact you by electronic and paper mail. You should also get your employer (if you work as a programmer) or your school, if any, to sign a "copyright disclaimer" for the library, if necessary. Here is a sample; alter the names: Yoyodyne, Inc., hereby disclaims all copyright interest in the library `Frob' (a library for tweaking knobs) written by James Random Hacker. , 1 April 1990 Ty Coon, President of Vice That's all there is to it! vdeplug_agno-0.1.1/README.md000066400000000000000000000025641416430117600154540ustar00rootroot00000000000000# vdeplug\_agno This is a libvdeplug plugin module to add encryption to a vde connection. It is based on the libwolfssl-dev library. This module of libvdeplug4 can be used in any program supporting VDE like vde\_plug, kvm, qemu, user-mode-linux and virtualbox. ## install vdeplug\_agno Requirements: [vdeplug4](https://github.com/rd235/vdeplug4) and libwolfssl-dev. vdeplug\_agno uses cmake, so the standard procedure to build and install this vdeplug plugin module is the following: ``` $ mkdir build $ cd build $ cmake .. $ make $ sudo make install ``` ## usage examples The following examples are VNLs (Virtual Network Locator) to be used with programs supporting vde as specified by the syntax of those programs. ### Encrypt connection to the switch ```agno://{vde:///tmp/myswitch}``` ### Encrypt connection using the specified key and type of the non encrypted packet ```agno:///tmp/my_keyfile[ethtype=copy]{vde:///tmp/myswitch}``` ### Encrypt connection using random packets types ```agno://[ethtype=rand]{vxvde://234.0.0.1}``` ### Create a vde namespace connected to a vxvde network with encrypted traffic ```vdens agno:///tmp/my_keyfile{vxvde://}``` See the man page (libvdeplug_agno) for further information. ## License GNU Lesser General Public License v 2.1 or later. It uses libwolfssl: see the [wolfssl FLOSS exception](https://www.wolfssl.com/docs/floss-exception/). vdeplug_agno-0.1.1/TODO000066400000000000000000000002561416430117600146610ustar00rootroot00000000000000* READ/negotiate THE KEY * ENCRYPT (encapsulated) ETHERNET HEADERS or not? It would be possible to implement agnostic switches able to forward traffic they cannot decode. vdeplug_agno-0.1.1/Uninstall.cmake000066400000000000000000000010361416430117600171410ustar00rootroot00000000000000cmake_minimum_required(VERSION 3.13) set(MANIFEST "${CMAKE_CURRENT_BINARY_DIR}/install_manifest.txt") if(NOT EXISTS ${MANIFEST}) message(FATAL_ERROR "Cannot find install manifest: '${MANIFEST}'") endif() file(STRINGS ${MANIFEST} files) foreach(file ${files}) if(EXISTS ${file} OR IS_SYMLINK ${file}) message(STATUS "Removing: ${file}") execute_process( COMMAND rm -f ${file} RESULT_VARIABLE retcode ) if(NOT "${retcode}" STREQUAL "0") message(WARNING "Failed to remove: ${file}") endif() endif() endforeach(file) vdeplug_agno-0.1.1/libvdeplug_agno.c000066400000000000000000000311241416430117600174740ustar00rootroot00000000000000/* * VDE - libvdeplug_agno agnostic encrypted vde net (aes encoded) * Copyright (C) 2017-2020 Renzo Davoli VirtualSquare * contributions by Michele Nalli * * This library is free software; you can redistribute it and/or modify it * under the terms of the GNU Lesser General Public License as published by * the Free Software Foundation version 2.1 of the License, or (at * your option) any later version. * * This library 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 Lesser * General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA */ //#define DEBUG_DISABLE_ENCRYPTION #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifndef DEBUG_DISABLE_ENCRYPTION #include #include #include #endif #include #include #include // 128-bit key // e.g. echo secret | md5sum #define DEFAULT_KEYFILE ".vde_agno_key" static VDECONN *vde_agno_open(char *vde_url, char *descr, int interface_version, struct vde_open_args *open_args); static ssize_t vde_agno_recv(VDECONN *conn, void *buf, size_t len, int flags); static ssize_t vde_agno_send(VDECONN *conn, const void *buf, size_t len, int flags); static int vde_agno_datafd(VDECONN *conn); static int vde_agno_ctlfd(VDECONN *conn); static int vde_agno_close(VDECONN *conn); #define _AGNO_TAG 0x61676e6f #define AGNO_TYPE 0xa6de #if __BYTE_ORDER == __LITTLE_ENDIAN #define AGNO_TAG __bswap_constant_32(_AGNO_TAG) #else #define AGNO_TAG _AGNO_TAG #endif #define ETH_HEADER_SIZE sizeof(struct ether_header) /* Structure of the header added by the module */ struct agno_hdr { uint16_t ether_type; unsigned char flags; /* Size of padding */ unsigned char unused; uint32_t tag; uint32_t time; /* Time used to avoid record & playback */ unsigned char rand[4]; /* Salt */ }; /* Declaration of the connection sructure of the module */ struct vde_agno_conn { void *handle; struct vdeplug_module *module; VDECONN *conn; uint16_t ether_type; Aes ekey; /* Encryption key */ Aes dkey; /* Decryption key */ WC_RNG rng; }; /* Declaration of the module sructure */ struct vdeplug_module vdeplug_ops={ /* .flags is not initialized */ .vde_open_real=vde_agno_open, .vde_recv=vde_agno_recv, .vde_send=vde_agno_send, .vde_datafd=vde_agno_datafd, .vde_ctlfd=vde_agno_ctlfd, .vde_close=vde_agno_close }; /* keyfile - path of the keyfile cryptkey - buffer where the decrypted key will be placed; it should contain 16 bytes. Returns 0 on success, -1 on error. */ static int getcryptkey(char *keyfile, unsigned char *cryptkey) { /* passwd file entry */ struct passwd pwd; /* passwd file entry pointer */ struct passwd *result; /* The maximum size needed for the user information buffer to be filled in by getpwuid_r(). */ /* returns either -1, without changing errno, or an initial suggested size for buf. */ ssize_t sc_bufsize = sysconf(_SC_GETPW_R_SIZE_MAX); /* set a large default sc_bufsize in the unlikely case sysconf fails */ size_t bufsize = sc_bufsize < 0 ? 16384 : sc_bufsize; /* buffer used in getpwuid_r */ char buf[bufsize]; /* buffer for absolute path of the keyfile */ char path[PATH_MAX+1]; /* File pointer for reading from keyfile */ FILE *fd; int i=0; /* Get password file from uid */ /* result is initialized by getpwuid_r */ if (getpwuid_r(geteuid(), &pwd, buf, bufsize, &result) != 0 || result == NULL) { return -1; } /* Get absolute path of keyfile */ if (keyfile == NULL || *keyfile == 0) /* keyfile not specified */ snprintf(path, PATH_MAX, "%s/" DEFAULT_KEYFILE, result->pw_dir); else if (*keyfile == '~') /* keyfile based on home directory */ snprintf(path, PATH_MAX, "%s/%s", result->pw_dir, keyfile+1); else if (*keyfile == '/') /* keyfile is an absolute path */ snprintf(path, PATH_MAX, "%s", keyfile); else { /* No other formats available */ errno = EINVAL; return -1; } path[PATH_MAX]=0; memset(cryptkey, 0, 16); /* Open the keyfile */ if ((fd = fopen(path, "r")) == NULL) { errno = ENOENT; return -1; } /* Change the key from string content to an array of bytes */ for (; i < 32;) { int c; /* Get next char or break */ if ((c = getc(fd)) == EOF) break; if (isxdigit(c)) { int val = c & 0xf; if (c > 'A') val += 9; if (i & 1) cryptkey[i >> 1] |= val; else cryptkey[i >> 1] = (val << 4); i++; } } fclose(fd); if (i<2) { errno = EINVAL; return -1; } return 0; } static VDECONN *vde_agno_open(char *vde_url, char *descr, int interface_version, struct vde_open_args *open_args) { (void) descr; (void) interface_version; (void) open_args; /* Return value on success; dynamically allocated */ struct vde_agno_conn *newconn=NULL; char *nested_url; char *ethtype=""; /* NULL-terminating array of struct vdeparms */ struct vdeparms parms[] = { {"ethtype", ðtype}, {NULL, NULL}}; unsigned char cryptkey[16]; VDECONN *conn; nested_url = vde_parsenestparms(vde_url); if (vde_parsepathparms(vde_url, parms) != 0) return NULL; if (getcryptkey(vde_url, cryptkey) != 0) return NULL; /* Open connection with nested url */ conn = vde_open(nested_url, descr, open_args); if (conn == NULL) return NULL; if ((newconn=calloc(1, sizeof(struct vde_agno_conn)))==NULL) { errno = ENOMEM; goto error; } newconn->conn=conn; switch (strcase(ethtype)) { case STRCASE(c,o,p,y): /* Mantain the type of the non-encrypted packet */ newconn->ether_type = 0x0; /* htons() converts the unsigned short integer hostshort from host byte order to network byte order. */ break; case STRCASE(i,p,v,4): /* Set ipv4 type */ newconn->ether_type = htons(ETHERTYPE_IP); /* 0x0800 */ break; case STRCASE(i,p,v,6): /* Set ipv6 type */ newconn->ether_type = htons(ETHERTYPE_IPV6); /* 0x86dd */ break; case STRCASE(r,a,n,d): /* Generates random number as type */ newconn->ether_type = htons(0xffff); break; default: { char *endptr; unsigned long type = strtoul(ethtype, &endptr, 0); if (ethtype == endptr && strcmp(ethtype, "") != 0) { /* ethtype doesn't contain a number */ errno = EINVAL; goto error; } if (type == 0) newconn->ether_type = htons(AGNO_TYPE); else if (type >= 0x600 && type < 0xffff) /* The input tag is valid */ newconn->ether_type = htons(type); else { errno = EINVAL; goto error; } } } /* Set key as encryption and decryption key */ #ifndef DEBUG_DISABLE_ENCRYPTION wc_AesSetKey(&newconn->ekey, cryptkey, sizeof(cryptkey), NULL, AES_ENCRYPTION); wc_AesSetKey(&newconn->dkey, cryptkey, sizeof(cryptkey), NULL, AES_DECRYPTION); wc_InitRng(&newconn->rng); #endif return (VDECONN *) newconn; error: vde_close(conn); return NULL; } /* wc_AesCbcEncrypt + padding */ static inline int pad_AesCbcEncrypt(Aes* aes, byte* out, const byte* in, word32 sz) { int rv; word32 szcomplete = sz & ~(AES_BLOCK_SIZE - 1); rv = wc_AesCbcEncrypt(aes, out, in, szcomplete); if (szcomplete != sz && rv == 0) { word32 i; byte buf[AES_BLOCK_SIZE]; for (i = 0; szcomplete + i < sz; i++) buf[i] = in[szcomplete + i]; for( ; i < AES_BLOCK_SIZE; i++) buf[i] = 0; rv = wc_AesCbcEncrypt(aes, out + szcomplete, buf, AES_BLOCK_SIZE); } return rv; } /* pad_AesCbcDecrypt + padding */ static inline int pad_AesCbcDecrypt(Aes* aes, byte* out, const byte* in, word32 sz) { int rv; word32 szcomplete = sz & ~(AES_BLOCK_SIZE - 1); rv = wc_AesCbcDecrypt(aes, out, in, szcomplete); if (szcomplete != sz && rv == 0) { word32 i; byte buf[AES_BLOCK_SIZE]; rv = pad_AesCbcDecrypt(aes, buf, in + szcomplete, AES_BLOCK_SIZE); for (i = 0; szcomplete + i < sz; i++) out[szcomplete + i] = buf[i]; } return rv; } static ssize_t vde_agno_recv(VDECONN *conn, void *buf, size_t len, int flags) { struct vde_agno_conn *vde_conn = (struct vde_agno_conn *)conn; /* */ size_t enclen = len + 30; struct ether_header *ehdr=(struct ether_header *) buf; /* Array of bytes where receiving and decryption are done */ unsigned char encbuf[enclen]; struct agno_hdr ahdr; /* Initialization Vector */ unsigned char iv_dec[AES_BLOCK_SIZE]; ssize_t retval = vde_recv(vde_conn->conn, encbuf, enclen, flags); if (retval < 0) return retval; if (len < ETH_HEADER_SIZE || retval < (ssize_t) ETH_HEADER_SIZE) goto error; /* The Ethernet header is not encrypted, we can already copy it. */ memcpy(ehdr, encbuf, sizeof(*ehdr)); /* Get decrypted agno header */ #ifdef DEBUG_DISABLE_ENCRYPTION memcpy(&ahdr, encbuf + sizeof(*ehdr), sizeof(ahdr)); #else wc_AesEcbDecrypt(&vde_conn->dkey, (unsigned char *)&ahdr, encbuf + sizeof(*ehdr), AES_BLOCK_SIZE); #endif /* Tag check */ if (ahdr.tag != AGNO_TAG) goto error; if ((time(NULL) - ntohl(ahdr.time) + 1) & ~3) /* avoid record_playback */ goto error; memcpy(iv_dec, &ahdr, sizeof(iv_dec)); ehdr->ether_type = ahdr.ether_type; retval -= sizeof(ahdr) + (ahdr.flags & 0xf); /* Decrypt payload */ #ifdef DEBUG_DISABLE_ENCRYPTION memcpy(((unsigned char *) buf) + ETH_HEADER_SIZE, encbuf + sizeof(*ehdr) + sizeof(ahdr), retval - ETH_HEADER_SIZE); //Decrypt 2 #else wc_AesSetIV(&vde_conn->dkey, iv_dec); pad_AesCbcDecrypt(&vde_conn->dkey, ((unsigned char *) buf) + ETH_HEADER_SIZE, encbuf + sizeof(*ehdr) + sizeof(ahdr), retval - ETH_HEADER_SIZE); #endif return retval; error: errno = EAGAIN; return 1; } static ssize_t vde_agno_send(VDECONN *conn, const void *buf, size_t len, int flags) { struct vde_agno_conn *vde_conn = (struct vde_agno_conn *)conn; struct ether_header *ehdr=(struct ether_header *) buf; /* AES works with 16 byte blocks; 16 == header + padding */ size_t newlen = len + 16; /* */ ssize_t enclen = (((newlen - ETH_HEADER_SIZE) + (AES_BLOCK_SIZE - 1)) & ~(AES_BLOCK_SIZE - 1)) + ETH_HEADER_SIZE; /* This will contain the encrypted packet */ unsigned char encbuf[enclen]; struct ether_header *newehdr=(struct ether_header *) encbuf; /* Init of agno header, except for .rand */ struct agno_hdr ahdr = { .ether_type = ehdr->ether_type, .flags = enclen - newlen, .unused = 0, .time = htonl(time(NULL)), .tag = AGNO_TAG }; /* Initialization Vector */ unsigned char iv_enc[AES_BLOCK_SIZE]; ssize_t retval; if (len < ETH_HEADER_SIZE) return len; memcpy(encbuf, ehdr, sizeof(*ehdr)); *newehdr = *ehdr; switch (vde_conn->ether_type) { case 0: newehdr->ether_type = ehdr->ether_type; break; case 0xffff: /* 0x600 <= random number < 0xffff */ /* if type <= 0x600 many systems think it is the lenght */ newehdr->ether_type = ntohs(0x600 + (rand() % 0xf9ff)); break; default: newehdr->ether_type = vde_conn->ether_type; } /* Complete initialization of agno header */ #ifndef DEBUG_DISABLE_ENCRYPTION wc_RNG_GenerateBlock(&vde_conn->rng, ahdr.rand, 4); #endif /* Encrypt agno header */ #ifdef DEBUG_DISABLE_ENCRYPTION memcpy(encbuf + sizeof(*ehdr), &ahdr, sizeof(ahdr)); #else wc_AesEcbEncrypt(&vde_conn->ekey, encbuf + sizeof(*ehdr), (unsigned char *)&ahdr, AES_BLOCK_SIZE); #endif memcpy(iv_enc, &ahdr, sizeof(iv_enc)); /* Encrypt payload */ #ifdef DEBUG_DISABLE_ENCRYPTION memcpy(encbuf + sizeof(*ehdr) + sizeof(ahdr), ((const unsigned char *) buf) + ETH_HEADER_SIZE, len - ETH_HEADER_SIZE); #else wc_AesSetIV(&vde_conn->ekey, iv_enc); pad_AesCbcEncrypt(&vde_conn->ekey, encbuf + sizeof(*ehdr) + sizeof(ahdr), ((unsigned char *) buf) + ETH_HEADER_SIZE, len - ETH_HEADER_SIZE); #endif retval = vde_send(vde_conn->conn, encbuf, enclen, flags); if (retval == enclen) return len; else return retval; } static int vde_agno_datafd(VDECONN *conn) { struct vde_agno_conn *vde_conn = (struct vde_agno_conn *)conn; return vde_datafd(vde_conn->conn); } static int vde_agno_ctlfd(VDECONN *conn) { struct vde_agno_conn *vde_conn = (struct vde_agno_conn *)conn; return vde_ctlfd(vde_conn->conn); } static int vde_agno_close(VDECONN *conn) { struct vde_agno_conn *vde_conn = (struct vde_agno_conn *)conn; int rv; #ifndef DEBUG_DISABLE_ENCRYPTION wc_FreeRng(&vde_conn->rng); #endif rv = vde_close(vde_conn->conn); free(vde_conn); return rv; } vdeplug_agno-0.1.1/man/000077500000000000000000000000001416430117600147415ustar00rootroot00000000000000vdeplug_agno-0.1.1/man/CMakeLists.txt000066400000000000000000000020101416430117600174720ustar00rootroot00000000000000cmake_minimum_required(VERSION 3.7) set(RONN_ORGANIZATION "VirtualSquare") set(RONN_ARGS --organization=${RONN_ORGANIZATION}) # ### ronn pages file(GLOB VU_RONN_PAGES ${CMAKE_CURRENT_SOURCE_DIR}/*.[1-8].ronn) set(VU_MAN_FILES) foreach(VU_RONN_PATH IN LISTS VU_RONN_PAGES) # VU_RONNPAGE: basename of VU_RONN_PATH get_filename_component(VU_RONNPAGE ${VU_RONN_PATH} NAME) # VU_MANPAGE: VU_RONNPAGE without the suffix string(REGEX REPLACE "\.ronn$" "" VU_MANPAGE ${VU_RONNPAGE}) list(APPEND VU_MAN_FILES ${VU_MANPAGE}) endforeach(VU_RONN_PATH) add_custom_target(${PROJECT_NAME}_manpages ALL make RONN_ARGS="${RONN_ARGS}" ${VU_MAN_FILES} WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}) ### man pages file(GLOB VU_MAN_PAGES ${CMAKE_CURRENT_SOURCE_DIR}/*.[1-8]) foreach(VU_MAN_PATH IN LISTS VU_MAN_PAGES) get_filename_component(VU_MANPAGE ${VU_MAN_PATH} NAME) string(REGEX REPLACE ".*\\." "" MAN_CHAPTER ${VU_MANPAGE}) install(FILES ${VU_MAN_PATH} DESTINATION ${CMAKE_INSTALL_MANDIR}/man${MAN_CHAPTER}) endforeach(VU_MAN_PATH) vdeplug_agno-0.1.1/man/Makefile000066400000000000000000000005551416430117600164060ustar00rootroot00000000000000RONN=ronn RONNOK := $(shell command -v ${RONN} 2> /dev/null) none: % : %.ronn ifdef RONNOK # copy copyright notice grep "^\.\\\\\"" $< > $@ || true # run ronn $(RONN) -r ${RONN_ARGS} --pipe $< >> $@ # delete useless trailing "" in .TH sed -i '/^\.TH /s/ ""$$//' $@ else echo "${RONN} is not available. Manpage $@ cannot be updated" >/dev/stderr >&2 endif vdeplug_agno-0.1.1/man/libvdeplug_agno.1000066400000000000000000000072411416430117600201700ustar00rootroot00000000000000.\" Copyright (C) 2020 VirtualSquare. Project Leader: Renzo Davoli .\" .\" This is free documentation; 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 2 .\" of the License, or (at your option) any later version. .\" .\" The GNU General Public License's references to "object code" .\" and "executables" are to be interpreted as the output of any .\" document formatting or typesetting system, including .\" intermediate and printed output. .\" .\" This manual 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 manual; if not, write to the Free .\" Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, .\" MA 02110-1301 USA. .\" .\" generated with Ronn-NG/v0.10.0 .\" http://github.com/apjanke/ronn-ng/tree/0.10.0-SNAPSHOT .TH "LIBVDEPLUG_AGNO" "1" "November 2020" "VirtualSquare" .SH "NAME" \fBlibvdeplug_agno\fR \- vdeplug module: add encryption to ethernet link plug .SH "SYNOPSIS" libvdeplug_agno\.so .SH "DESCRIPTION" This is a libvdeplug cryptographic module that implements agnostic encryption over layer 2\. Agnostic encryption is an encryption method that doesn't need information about the vde network implementation\. .P This module of libvdeplug4 can be used in any program supporting vde like \fBvde_plug\fR, \fBvdens\fR, \fBkvm\fR, \fBqemu\fR, \fBuser\-mode\-linux\fR and \fBvirtualbox\fR\. .P The vde_plug_url syntax of this module is the following: .P \~ \~ \~ \fBagno://\fR[\fI/path/of/keyfile\fR][\fB[\fR\fIOPTIONS\fR\fB]\fR]\fB{\fR\fIvde nested url\fR\fB}\fR .P \fI/path/of/keyfile\fR, if present, must be an absolute path or a path relative to the user's home (e\.g\. \fB~/example/path\fR)\. If omitted the default path of the keyfile is \fB~/\.vde_agno_key\fR\. The keyfile must contain a 128\-bit key in hexadecimal format\. Only hexadecimal characters are considered in both uppercase and lowercase, all the others are ignored (e\.g\. white\-spaces, newline characters, non\-hexadecimal letters)\. .SH "OPTIONS" .TP \fBethtype=\fR\fITYPE\fR define the type of the Ethernet frame of the encrypted packet\. TYPE can be the an exadecimal number or: .IP \fBcopy\fR: same type of the non\-encrypted packet .IP \fBipv4\fR: ipv4 type (0x0800) .IP \fBipv6\fR: ipv6 type (0x86dd) .IP \fBrand\fR: random number as type\. The random number will be generated for every Ethernet packet sent\. .SH "EXAMPLES" \fBagno://{vde:///tmp/myswitch}\fR .P agno uses the key stored in the default keyfile (~/\.vde_agno_key) location to encrypt the traffic sent to the switch\. The Ethernet frames have agno specific type (0xa6de) as type\. .P \fBagno:///tmp/my_keyfile[ethtype=copy]{vde:///tmp/myswitch}\fR .P agno uses the key stored in file /tmp/my_keyfile to encrypt the traffic sent to the switch\. The Ethernet frames will have the same type of the non\-encrypted packet\. .P \fBvdens agno://[ethtype=rand]{vxvde://234\.0\.0\.1}\fR .P create a nanespace connected to a vxvde local area cloud\. agno uses the key stored in the default keyfile (~/\.vde_agno_key) location to encrypt the traffic sent to vxvde\. .SH "NOTICE" Virtual Distributed Ethernet is not related in any way with www\.vde\.com ("Verband der Elektrotechnik, Elektronik und Informationstechnik" i\.e\. the German "Association for Electrical, Electronic & Information Technologies")\. .SH "SEE ALSO" \fBvde_plug\fR(1) .SH "AUTHOR" VirtualSquare\. Project leader: Renzo Davoli vdeplug_agno-0.1.1/man/libvdeplug_agno.1.ronn000066400000000000000000000066011416430117600211420ustar00rootroot00000000000000libvdeplug_agno(1) -- vdeplug module: add encryption to ethernet link plug ==== ## SYNOPSIS libvdeplug_agno.so ## DESCRIPTION This is a libvdeplug cryptographic module that implements agnostic encryption over layer 2. Agnostic encryption is an encryption method that doesn't need information about the vde network implementation. This module of libvdeplug4 can be used in any program supporting vde like `vde_plug`, `vdens`, `kvm`, `qemu`, `user-mode-linux` and `virtualbox`. The vde_plug_url syntax of this module is the following:       `agno://`[*/path/of/keyfile*][`[`*OPTIONS*`]`]`{`*vde nested url*`}` */path/of/keyfile*, if present, must be an absolute path or a path relative to the user's home (e.g. `~/example/path`). If omitted the default path of the keyfile is `~/.vde_agno_key`. The keyfile must contain a 128-bit key in hexadecimal format. Only hexadecimal characters are considered in both uppercase and lowercase, all the others are ignored (e.g. white-spaces, newline characters, non-hexadecimal letters). ## OPTIONS * `ethtype=`_TYPE_: define the type of the Ethernet frame of the encrypted packet. TYPE can be the an exadecimal number or: `copy`: same type of the non-encrypted packet `ipv4`: ipv4 type (0x0800) `ipv6`: ipv6 type (0x86dd) `rand`: random number as type. The random number will be generated for every Ethernet packet sent. ## EXAMPLES `agno://{vde:///tmp/myswitch}` agno uses the key stored in the default keyfile (~/.vde_agno_key) location to encrypt the traffic sent to the switch. The Ethernet frames have agno specific type (0xa6de) as type. `agno:///tmp/my_keyfile[ethtype=copy]{vde:///tmp/myswitch}` agno uses the key stored in file /tmp/my_keyfile to encrypt the traffic sent to the switch. The Ethernet frames will have the same type of the non-encrypted packet. `vdens agno://[ethtype=rand]{vxvde://234.0.0.1}` create a nanespace connected to a vxvde local area cloud. agno uses the key stored in the default keyfile (~/.vde_agno_key) location to encrypt the traffic sent to vxvde. ## NOTICE Virtual Distributed Ethernet is not related in any way with www.vde.com ("Verband der Elektrotechnik, Elektronik und Informationstechnik" i.e. the German "Association for Electrical, Electronic & Information Technologies"). ## SEE ALSO `vde_plug`(1) ## AUTHOR VirtualSquare. Project leader: Renzo Davoli