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Permission is granted to anyone to use this software for any purpose on any computer system, and to alter it and redistribute it, subject to the following restrictions: 1. The origin of this software must not be misrepresented, either by explicit claim or by omission. 2. Altered versions must be plainly marked as such, and must not be misrepresented as being the original software. Any altered version must clearly and properly represent the origin of this software in any accompanying documentation. 3. All advertising materials which relate specifically to derivate works of this software must display the following acknowledgement: This product includes software developed by Jordan Ritter. 4. The name of the Author may not be used to endorse or promote products derived from this software without specific prior written permission. 5. This notice, and any references to this notice, in any original or derived source distribution of or documentation for this software, may not be removed or altered. THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. Portions were copied from tcpkill (part of dsniff), which has the following copyright: Copyright (c) 1999, 2000 Dug Song All rights reserved, all wrongs reversed. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. 3. The name of author may not be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. ngrep-1_47/configure.in0000644000175000017500000003366313154335003014516 0ustar romainromaindnl dnl Copyright (c) 2017 Jordan Ritter dnl dnl Please refer to the LICENSE file for more information. dnl dnl NOTE: configure.in requires autoconf 2.57 or more recent. AC_INIT(ngrep.c) AC_MSG_RESULT AC_MSG_RESULT(Configuring System ...) AC_MSG_RESULT AC_CANONICAL_SYSTEM AC_PROG_CC AC_HEADER_STDC AC_PREFIX_DEFAULT(/usr/local) if test -n "`which tcpdump 2> /dev/null`"; then AC_PREFIX_PROGRAM(tcpdump) fi EXTRA_DEFINES="" EXTRA_INCLUDES="" EXTRA_LDFLAGS="" EXTRA_OBJS="" EXTRA_LIBS="" dnl dnl Define the arguments that we accept. Parse them first. dnl dnl dnl Allow user to specify alternate ``nobody'' user. dnl AC_ARG_WITH(dropprivs-user, [ --with-dropprivs-user[=user] use different user for dropprivs], [ DROPPRIVS_USER="$withval" ], [ DROPPRIVS_USER="nobody" ]) dnl dnl Enable or disable the drop privileges logic. dnl AC_ARG_ENABLE(dropprivs, [ --disable-dropprivs disable privilege dropping logic], [ use_dropprivs="$enableval" ], [ use_dropprivs="yes" ]) if test $use_dropprivs = yes; then USE_DROPPRIVS="1" else USE_DROPPRIVS="0" fi dnl dnl IPv6 (and ICMPv6) support dnl AC_ARG_ENABLE(ipv6, [ --enable-ipv6 enable IPv6 (and ICMPv6) support], [ use_ipv6="$enableval" ], [ use_ipv6="no" ]) if test $use_ipv6 = yes; then USE_IPv6="1" else USE_IPv6="0" fi dnl dnl PCAP BPF filter expression lexer bugfix dnl dnl Typically ngrep is invoked with a (optional) search string plus a BPF dnl filter. However, ngrep doesn't semantically understand BPF filter terms dnl itself, so it assumes the first non-option parameter is the search string, dnl and attempts to compile the remainder as the BPF filter expression. If the dnl compilation fails, it probably means that no search string was specified, so dnl it restarts the BPF filter expression lexer and attempts to compile the dnl entire non-option parameter string as the expression. If that fails, then dnl the specified BPF filter expression is definitely bogus and ngrep errors dnl out. dnl dnl I favored this approach because it made invocation simpler & more fluid. In dnl order to make it work however, I had to solve for a bug in older versions of dnl libpcap where the library would segfault if the BPF filter compilation dnl function was invoked more than once. The workaround turned out to be a dnl simple invocation of the lexer's restart function in between compilation dnl invocations, however that function wasn't normally exposed in the header dnl since it was an internal built-in of whatever grammar lexer libpcap had dnl compiled with (bison/yacc/etc). dnl dnl The default behavior has long been to restart the lexer (keeping invocation dnl simpler) and provide a compile-time option to disable the mechanism, if dnl anyone cared to. Based on a more recent bug report however[1], it seems dnl that the newer libpcap breaks when the lexer restart function is called. dnl So, given the choice between old platforms working by default (always call dnl restart/allow disablement at compile-time) vs. newer platforms working by dnl default (never call restart/allow enablement at compile-time), the default dnl behavior now is to do the latter. dnl dnl For versions of libpcap that require restart function invocation in between dnl multiple lexer passes, allow them to enable it here. dnl dnl [1] https://github.com/jpr5/ngrep/issues/2 dnl AC_ARG_ENABLE(pcap-restart, [ --enable-pcap-restart enable BPF lexer restart bugfix for older versions of PCAP (default off)], [ use_pcap_restart="$enableval" ], [ use_pcap_restart="no" ]) if test $use_pcap_restart = yes; then USE_PCAP_RESTART="1" else USE_PCAP_RESTART="0" fi dnl dnl Configure the regular expression library. dnl REGEX_DIR='' REGEX_OBJS='' AC_ARG_ENABLE(pcre, [ --enable-pcre use PCRE instead of GNU regex (default GNU)], [ use_pcre="$enableval" ], [ use_pcre="no" ]) if test use_pcre = yes; then USE_PCRE="1" EXTRA_LIBS="$EXTRA_LIBS -lpcre" else USE_PCRE="0" AC_MSG_RESULT AC_MSG_RESULT(Configuring GNU Regular Expression library ...) AC_MSG_RESULT REGEX_DIR='regex-0.12' REGEX_OBJS="$REGEX_DIR/regex.o" ( cd $REGEX_DIR && ./configure ) EXTRA_INCLUDES="$EXTRA_INCLUDES -I$REGEX_DIR" fi AC_SUBST(REGEX_DIR) AC_SUBST(REGEX_OBJS) dnl dnl tcpkill/libnet support (from Debian patch) dnl AC_ARG_ENABLE(tcpkill, [ --enable-tcpkill enable connection killing support (default off)], [ AC_CHECK_LIB(net, libnet_init_packet,,echo !!! error: tcpkill feature enabled but no libnet found; exit) use_tcpkill="$enableval" ], [ use_tcpkill="no" ]) if test $use_tcpkill = yes; then USE_TCPKILL="1" EXTRA_OBJS="$EXTRA_OBJS tcpkill.o" EXTRA_DEFINES="$EXTRA_DEFINES $(libnet-config --defines)" EXTRA_LIBS="$EXTRA_LIBS $(libnet-config --libs)" else USE_TCPKILL="0" fi AC_ARG_ENABLE(vlan-hack, [ --disable-vlan-hack disable automatic inclusion of VLAN frames (default on)], [use_vlan_hack="$enableval"], [use_vlan_hack="yes"]) if test $use_vlan_hack = yes; then USE_VLAN_HACK="1" else USE_VLAN_HACK="0" fi AC_ARG_WITH(pcap-includes, [ --with-pcap-includes=dir specify the pcap include directory], [PCAP_DIR=$withval], [ PCAP_DIR="`eval echo -n ${includedir}` \ /usr/include /usr/include/pcap \ /usr/local/include /usr/local/include/pcap \ /opt/local/include /opt/local/include/pcap \ /usr/share/include /usr/share/include/pcap" ]) AC_MSG_RESULT AC_MSG_RESULT(Configuring Network Grep ...) AC_MSG_RESULT dnl dnl OS-specific options dnl STRIPFLAG="-s" case "$target_os" in *linux*) AC_SUBST(OS, LINUX) ;; *bsd*) AC_SUBST(OS, BSD) ;; *solaris*) AC_SUBST(OS, SOLARIS) AC_CHECK_LIB(socket, socket,, [AC_MSG_ERROR(no socket in -lsocket)]) AC_CHECK_LIB(nsl, gethostbyname,, [AC_MSG_ERROR(no gethostbyname in -lnsl)]) EXTRA_LIBS="$EXTRA_LIBS -lnsl -lsocket" ;; *osf*) AC_SUBST(OS, OSF1) EXTRA_DEFINES="$EXTRA_DEFINES -D__STDC__=2" ;; *hpux11*) AC_SUBST(OS, BSD) ;; *aix*) AC_SUBST(OS, AIX) ;; *darwin*) AC_SUBST(OS, MACOSX) STRIPFLAG="" ;; *) AC_SUBST(OS, UNKNOWN_OS) AC_MSG_WARN( Your OS ($target_os) is not supported yet. Try playing with the build host and target options. ) sleep 3 ;; esac AC_SUBST(STRIPFLAG) EXTRA_DEFINES="$EXTRA_DEFINES -D_BSD_SOURCE=1 -D__FAVOR_BSD=1" dnl dnl Quick Background: dnl dnl A long time ago, the libpcap team decided to change the functionality split dnl and installation location of their header files. Consequently, installing dnl the prior version's headers, followed by the newer version's, would result dnl in two sets of different but similarly-named headers. This broke a lot of dnl packages, since most developers just included in their programs. dnl Many (including ngrep) addressed the problem by detecting this condition and dnl alerting the user to fix it manually. Eventually the libpcap team decided dnl to add back in the top-level pcap.h, presumably to rectify the hassle. dnl dnl On modern Linux distros, checking for this condition likely doesn't matter dnl anymore. However, ngrep targets a much broader range of (older) OSes, so dnl it's still a possibility. The re-addition of a top-level pcap.h confounds dnl the old header presence check, so I've updated it to search for the version, dnl PCAP_VERSION_MAJOR. Maybe I'll delete it in another 5 years. ;-) dnl AC_MSG_CHECKING(for a complete set of pcap headers) pcap_base="" for dir in $PCAP_DIR ; do if test -d $dir -a -r "$dir/pcap.h"; then AC_EGREP_HEADER([PCAP_VERSION_MAJOR], [$dir/pcap.h], [found=$dir], [found=""]) if test -n "$found" -a "$found" != "$pcap_base"; then AC_MSG_RESULT AC_MSG_RESULT AC_MSG_RESULT(more than one set found in:) AC_MSG_RESULT( $pcap_base) AC_MSG_RESULT( $found) AC_MSG_RESULT AC_MSG_ERROR(please wipe out all unused pcap installations) else pcap_base="$dir" fi fi done if test -z "$pcap_base" ; then AC_MSG_RESULT(no) AC_MSG_ERROR(could not find a complete set of pcap headers) else AC_MSG_RESULT(found $pcap_base) EXTRA_INCLUDES="$EXTRA_INCLUDES -I$pcap_base" dnl Best-effort; newer ld warns on missing dirs. DIR="`dirname $pcap_base`/lib" if test -d $DIR; then EXTRA_LDFLAGS="$EXTRA_LDFLAGS -L$DIR" fi fi dnl dnl Check for a working PCAP library we can link against.. dnl AC_CHECK_LIB(pcap, pcap_open_live,,[AC_MSG_ERROR(a viable pcap lib is required)]) dnl dnl And the PCAP restart function. dnl if test "$USE_PCAP_RESTART" = "1"; then PCAP_RESTART_FUNC="unused" for func in pcap_restart pcap_yyrestart yyrestart; do AC_CHECK_LIB(pcap, $func, found="$func") if test -n "$found"; then USE_PCAP_RESTART="1" PCAP_RESTART_FUNC="$found" break fi done if test "$PCAP_RESTART_FUNC" = "unused"; then AC_MSG_ERROR(BPF lexer restart fix requested, but no restart function found) fi fi dnl dnl Next figure out which bpf header file to look at. dnl AC_MSG_CHECKING(for BPF include path) BPF=`/usr/bin/perl -ne '/include\s+<(.*bpf\.h)>/ && print "$1\n"' $pcap_base/pcap.h` AC_MSG_RESULT($BPF) dnl dnl Check for DLT_* types that might not have existed in older dnl libpcap's dnl present="" AC_MSG_CHECKING(for DLT_LINUX_SLL in $BPF) AC_EGREP_CPP(yes, [ #include <$BPF> #ifdef DLT_LINUX_SLL yes #endif ], [HAVE_DLT_LINUX_SLL="1" && AC_MSG_RESULT(yes)], [HAVE_DLT_LINUX_SLL="0" && AC_MSG_RESULT(no)]) present="" AC_MSG_CHECKING(for DLT_LOOP in $BPF) AC_EGREP_CPP(yes, [ #include <$BPF> #ifdef DLT_LOOP yes #endif ], [HAVE_DLT_LOOP="1" && AC_MSG_RESULT(yes)], [HAVE_DLT_LOOP="0" && AC_MSG_RESULT(no)]) present="" AC_MSG_CHECKING(for DLT_IEEE802_11 in $BPF) AC_EGREP_CPP(yes, [ #include <$BPF> #ifdef DLT_IEEE802_11 yes #endif ], [HAVE_DLT_IEEE802_11="1" && AC_MSG_RESULT(yes)], [HAVE_DLT_IEEE802_11="0" && AC_MSG_RESULT(no)]) present="" AC_MSG_CHECKING(for DLT_IEEE802_11_RADIO in $BPF) AC_EGREP_CPP(yes, [ #include <$BPF> #ifdef DLT_IEEE802_11_RADIO yes #endif ], [HAVE_DLT_IEEE802_11_RADIO="1" && AC_MSG_RESULT(yes)], [HAVE_DLT_IEEE802_11_RADIO="0" && AC_MSG_RESULT(no)]) present="" AC_MSG_CHECKING(for DLT_RAW in $BPF) AC_EGREP_CPP(yes, [ #include <$BPF> #ifdef DLT_RAW yes #endif ], [HAVE_DLT_RAW="1" && AC_MSG_RESULT(yes)], [HAVE_DLT_RAW="0" && AC_MSG_RESULT(no)]) present="" AC_MSG_CHECKING(for DLT_PFLOG in $BPF) AC_EGREP_CPP(yes, [ #include <$BPF> #ifdef DLT_PFLOG yes #endif ], [HAVE_DLT_PFLOG="1" && AC_MSG_RESULT(yes)], [HAVE_DLT_PFLOG="0" && AC_MSG_RESULT(no)]) present="" AC_MSG_CHECKING(for DLT_IPNET in $BPF) AC_EGREP_CPP(yes, [ #include <$BPF> #ifdef DLT_IPNET yes #endif ], [HAVE_DLT_IPNET="1" && AC_MSG_RESULT(yes)], [HAVE_DLT_IPNET="0" && AC_MSG_RESULT(no)]) dnl dnl Now that we're past the OS-specific stuff, which could have dnl modified our USE_* and other defines, define them all now. dnl AC_DEFINE_UNQUOTED(USE_PCAP_RESTART, $USE_PCAP_RESTART, [whether to call the BPF lexer restart function between multiple BPF filter compilation attempts (default no)]) AC_DEFINE_UNQUOTED(PCAP_RESTART_FUNC, $PCAP_RESTART_FUNC, [routine used for restarting the BPF lexer]) AC_DEFINE_UNQUOTED(USE_PCRE, $USE_PCRE, [whether to use PCRE (default GNU Regex)]) AC_DEFINE_UNQUOTED(USE_IPv6, $USE_IPv6, [whether to use IPv6 (default off)]) AC_DEFINE_UNQUOTED(USE_TCPKILL, $USE_TCPKILL, [whether to enable tcpkill functionality (default off)]) AC_DEFINE_UNQUOTED(USE_VLAN_HACK, $USE_VLAN_HACK, [whether to automatically include VLAN frames (default on)]) AC_DEFINE_UNQUOTED(USE_DROPPRIVS, $USE_DROPPRIVS, [whether to use privileges dropping (default yes)]) AC_DEFINE_UNQUOTED(DROPPRIVS_USER, "$DROPPRIVS_USER", [pseudo-user for running ngrep (default "nobody")]) AC_DEFINE_UNQUOTED(HAVE_DLT_RAW, $HAVE_DLT_RAW, [presence of DLT_RAW in bpf.h]) AC_DEFINE_UNQUOTED(HAVE_DLT_PFLOG, $HAVE_DLT_PFLOG, [presence of DLT_PFLOG in $BPF]) AC_DEFINE_UNQUOTED(HAVE_DLT_IEEE802_11, $HAVE_DLT_IEEE802_11, [presence of DLT_IEEE802_11 in bpf.h]) AC_DEFINE_UNQUOTED(HAVE_DLT_IEEE802_11_RADIO, $HAVE_DLT_IEEE802_11_RADIO, [presence of DLT_IEEE802_11_RADIO in bpf.h]) AC_DEFINE_UNQUOTED(HAVE_DLT_LOOP, $HAVE_DLT_LOOP, [presence of DLT_LOOP in bpf.h]) AC_DEFINE_UNQUOTED(HAVE_DLT_LINUX_SLL, $HAVE_DLT_LINUX_SLL, [presence of DLT_LINUX_SLL in bpf.h]) AC_DEFINE_UNQUOTED(HAVE_DLT_IPNET, $HAVE_DLT_IPNET, [presence of DLT_IPNET in bpf.h]) dnl dnl Merge our global tack-ons with autoconf's. dnl AC_SUBST(EXTRA_DEFINES) AC_SUBST(EXTRA_INCLUDES) AC_SUBST(EXTRA_LDFLAGS) AC_SUBST(EXTRA_OBJS) AC_SUBST(EXTRA_LIBS) dnl dnl Emit configuration messages about any flags specified. dnl AC_MSG_RESULT if test "$USE_PCAP_RESTART" = "1"; then AC_MSG_RESULT([CONFIG: BPF filter lexer restart enabled (using $PCAP_RESTART_FUNC)]) fi if test "$USE_IPv6" = "1"; then AC_MSG_RESULT(CONFIG: IPv6 support enabled) else AC_MSG_RESULT(CONFIG: IPv6 support disabled) fi if test "$USE_DROPPRIVS" = "1"; then AC_MSG_RESULT([CONFIG: privilege dropping enabled (using $DROPPRIVS_USER)]) else AC_MSG_RESULT(CONFIG: privilege dropping DISABLED) fi if test "$USE_PCRE" = "1"; then AC_MSG_RESULT(CONFIG: using PCRE regex library) else AC_MSG_RESULT(CONFIG: using GNU regex library) fi if test "$USE_TCPKILL" = "1"; then AC_MSG_RESULT(CONFIG: tcpkill feature enabled) else AC_MSG_RESULT(CONFIG: tcpkill feature disabled) fi if test "$USE_VLAN_HACK" = "1"; then AC_MSG_RESULT(CONFIG: automatically including VLAN frames) else AC_MSG_RESULT(CONFIG: NOT automatically including VLAN frames) fi dnl dnl And we're done. ALL YOUR BASE. Don't forget. dnl AC_MSG_RESULT AC_CONFIG_HEADERS(config.h) AC_CONFIG_FILES(Makefile) AC_OUTPUT ngrep-1_47/README.md0000644000175000017500000000626113154335003013456 0ustar romainromain## ngrep 1.47 (9.7.2017) ngrep is like GNU grep applied to the network layer. It's a PCAP-based tool that allows you to specify an extended regular or hexadecimal expression to match against data payloads of packets. It understands many kinds of protocols, including IPv4/6, TCP, UDP, ICMPv4/6, IGMP and Raw, across a wide variety of interface types, and understands BPF filter logic in the same fashion as more common packet sniffing tools, such as tcpdump and snoop. ## What's New * Fix "no VLAN support for XXX"-related problems * Fix truncated/garbled output (e.g. SIP over SLL/Linux cooked sockets) * Change exit behavior to match BSD & GNU grep (see manpage) * Add Solaris IPnet support * Update to use 32bit values where relevant * Emit frame # in header, useful for reference/analysis * Emit total received, matched upon exit (dropped unreliable PCAP stats) * Import debian patches related to autotools, manpage, and compilation * on other platforms * Fix build clean/distclean when not linked against provided GNU regex * Fix build --enable/--disable flag processing * Fix building under MS VS2012 / Win32 * Update to latest autotools (2017) ## How to use ngrep was originally developed to: * debug plaintext protocol interactions such as HTTP, IMAP, DNS, SIP, etc. * identify and analyze anomalous network communications such as those between malware, zombies and viruses * store, read and reprocess pcap dump files while looking for specific data patterns As well, it could be used to do plaintext credential collection, as with HTTP Basic Authentication, FTP or POP3 authentication. Like all useful tools, it can be used for good and for bad. Visit [EXAMPLES](EXAMPLES.md) to learn more about how ngrep works and can be leveraged to see all sorts of neat things. ## Support, Feedback, & Patches If you need help, have constructive feedback, or would like to submit a patch, please visit ngrep's project at GitHub and use the online tools there. It will help the author better manage the various requests and patches so that nothing is lost or missed (as has been the case in the past, unfortunately). * Issues: https://github.com/jpr5/ngrep/issues * Patches: https://github.com/jpr5/ngrep/pulls ## Confirmed Working Platforms * Linux 2.0+ (RH6+, SuSE, TurboLinux, Debian, Gentoo, Ubuntu, Mandrake, Slackware)/x86, RedHat/alpha Cobalt, (Qube2) Linux/MIPS * Solaris 2.5.1, 2.6/SPARC, Solaris 7, Solaris 8/SPARC, Solaris 9/SPARC * FreeBSD 2.2.5, 3.1, 3.2, 3.4-RC, 3.4-RELEASE, 4.0, 5.0 * OpenBSD 2.4 (after upgrading pcap from 0.2), 2.9, 3.0, 3.1+ * NetBSD 1.5/SPARC * Digital Unix V4.0D (OSF/1), Tru64 5.0, Tru64 5.1A * HPUX 11 * IRIX * AIX 4.3.3.0/PowerPC * BeOS R5 * Mac OS X 10+ * GNU HURD * Windows 95, 98, NT, 2000, XP, 2003/x86, 7, 8, 8.1, 10 ## Miscellany Please see [CREDITS](CREDITS) for a partial list of the many people who helped make ngrep what it is today. Also, please note that ngrep is released under a simple BSD-style license, though depending on which regex library you compile against, you'll either get the GPL (GNU regex) or Artistic (PCRE). * Unix libpcap: http://www.tcpdump.org/release/ * Windows libpcap: http://www.winpcap.org/install/ * PCRE: http://www.pcre.org/ ngrep-1_47/CREDITS0000644000175000017500000000235713154335003013221 0ustar romainromainAuthor of ngrep: Jordan Ritter Use of couch whilst conceiving of the concept: Dave Goldsmith and Window Snyder Original (old) porting of ngrep to Win32: Mike 64-bit clean regex.c patch: Jeff Hexdump patch: Andrew W. Flury Elite ideas and loads of licensing advice: Dan Frasnelli and cstone Use of OSF/1 box and DDoS research: Dave Dittrich Compilation patches: dugsong Joerg Dorchain Tokenring Patch vacuum HPUX and Config Updates Patch Kevin Steves AIX patch "Joseph N. Wilson" TCP ECN patch Maik Pfeil Real RPM Packaging Dag Wieers Excellent patch for adding IPv6 support to ngrep Bernard Massot Assistance with IPv6 testing Ralph Logan Arrigo Triulzi Timestamp diff from first match patch Joseph Heenan And many others. ngrep-1_47/scripts/0000755000175000017500000000000013154335003013661 5ustar romainromainngrep-1_47/scripts/multi.pl0000755000175000017500000000465513154335003015365 0ustar romainromain#!/usr/bin/perl # # Author: Jordan Ritter # Date: Thu Jul 5 17:08:18 PDT 2001 # # Input file format: # # Rulename1 file1.gz rule1 bpf_filter1 # Rulename2 file2.gz rule2 bpf_filter2 # Rulename3 file3.gz rule3 bpf_filter3 # # Output: # # ./ngrepped.Rulename1 # ./ngrepped.Rulename2 # ./ngrepped.Rulename3 # # Considerations: # # 1. Not sure how previous script was able to get the pcap filters with spaces using split... # 2. Don't forget to tweak $max_procs in CONFIG section. # 3. Blank lines in rule file are bad bad bad. # 4. Assumes bash. # ########## # CONFIG # ########## require 5.004; use POSIX qw(:signal_h); my($sig_set) = POSIX::SigSet->new(SIGINT); my($old_sig_set) = POSIX::SigSet->new(); my($max_procs) = 10; my($rules_file,%rules, @rules); my($fork_level); my($loops); $|++; ############# # FUNCTIONS # ############# sub go { my($rule_name) = shift @_; return unless $rule_name; my(%rule) = %{$rules{$rule_name}}; $fork_level++; sigprocmask(SIG_BLOCK, $sig_set, $old_sig_set); my($pipe) = "pipe-$rule-$fork_level"; my($daddy) = open($pipe, "-|"); if (not defined $daddy) { warn "[$rule_name] fork() error: $!\n"; sigprocmask(SIG_UNBLOCK, $old_sig_set); sleep(1); } elsif (not $daddy) { my(@args); $SIG{INT} = 'IGNORE'; sigprocmask(SIG_UNBLOCK, $old_sig_set); system("zcat $rule{'file'} | " . "ngrep -qtI - $rule{'regex'} $rule{'filter'} 2&>1 > " . "ngrepped.$rule_name"); exit; } else { sigprocmask(SIG_UNBLOCK, $old_sig_set); } &go(@_); close($pipe); print "[$rule_name] finished\n"; } ######## # MAIN # ######## $rules_file = $ARGV[0]; open(RULES, $rules_file) || die "Couldn't open rules file $rules_file: $!.\n"; my(@lines) = ; close(RULES); if (($loops = scalar(@lines)) == 0) { die "Rules file $rules_file empty, exiting.\n"; } %rules = map { chomp(local(@fields) = split / /, $_); $fields[0] => { "file" => $fields[1], "regex" => $fields[2], "filter" => $fields[3] }; } @lines; @rules = keys %rules; print "Hi, I'm ngrepper, and here we go.\n"; for ( 0 .. int($loops / $max_procs) ) { $fork_level = 1; @rules_for_this_pass = splice(@rules, 0, $max_procs); &go(@rules_for_this_pass); } print "Welp, I'm done.\n"; exit; ngrep-1_47/ngrep.h0000644000175000017500000001126513154335003013463 0ustar romainromain/* * Copyright (c) 2017 Jordan Ritter * * Please refer to the LICENSE file for more information. * */ #define VERSION "1.47.1-git" /* * We cache the standard frame sizes here to save us time and * additional dependencies on more operating system include files. */ #define ETHHDR_SIZE 14 #define TOKENRING_SIZE 22 #define PPPHDR_SIZE 4 #define SLIPHDR_SIZE 16 #define RAWHDR_SIZE 0 #define LOOPHDR_SIZE 4 #define FDDIHDR_SIZE 21 #define ISDNHDR_SIZE 16 #define IEEE80211HDR_SIZE 32 #define PFLOGHDR_SIZE 48 #define VLANHDR_SIZE 4 #define IPNETHDR_SIZE 24 #ifndef ETHERTYPE_IP #define ETHERTYPE_IP 0x0800 #endif #ifndef ETHERTYPE_IPV6 #define ETHERTYPE_IPV6 0x86dd #endif #define EXTRACT_16BITS(p) \ ((uint16_t)((uint16_t)*((const uint8_t *)(p) + 0) << 8 | \ (uint16_t)*((const uint8_t *)(p) + 1))) #define _atoui32(p) \ ((uint32_t)strtoul((p), (char **)NULL, 10)) /* * Default patterns for BPF and regular expression filters. * * When targeting IP frames with a BPF filter, optionally-present VLAN frames * will be excluded by default, thus any IP traffic on a VLAN'd network is * invisible to ngrep by default. This requires the user to specify "vlan" * every time they are on a VLAN'd network, which gets irritating fast. * * In turn, this leads to a surprising behavior when working with pcap dump * files created from a "vlan" filter: reading and re-processing them requires * the same "vlan" filter to be specified, otherwise the traffic will be * invisible. IOW, when the dump reader is targeting IP traffic in the dump but * doesn't know (or remember) the "vlan" filter was specified, they will see * nothing -- and mistakenly blame ngrep. * * While the behavior is technically consistent, to the user it can be * surprising, confusing, and therefore Dumb As Shit. For convenience' sake, we * fix this for them by including VLAN (optionally) back into the stream * targeting IP traffic, and compensating for the variable offset in the packet * decoder. */ #if USE_IPv6 #define BPF_FILTER_IP_TYPE "(ip || ip6)" #else #define BPF_FILTER_IP_TYPE "(ip)" #endif #define BPF_TEMPLATE_IP BPF_FILTER_IP_TYPE #define BPF_TEMPLATE_IP_VLAN "(" BPF_FILTER_IP_TYPE " || (vlan && " BPF_FILTER_IP_TYPE "))" #define BPF_TEMPLATE_USERSPEC_IP "( %s) and " BPF_TEMPLATE_IP #define BPF_TEMPLATE_USERSPEC_IP_VLAN "( %s) and " BPF_TEMPLATE_IP_VLAN #define WORD_REGEX "((^%s\\W)|(\\W%s$)|(\\W%s\\W))" /* * For retarded operating systems like Solaris that don't have this, * when everyone else does. Good job, Sun! */ #ifndef IP_OFFMASK #define IP_OFFMASK 0x1fff #endif /* * "Newer" flags that older operating systems don't yet recognize. */ #ifndef TH_ECE #define TH_ECE 0x40 #endif #ifndef TH_CWR #define TH_CWR 0x80 #endif /* * Single-char packet "ident" flags. */ typedef enum { TCP = 'T', UDP = 'U', ICMP = 'I', ICMPv6 = 'I', IGMP = 'G', UNKNOWN = '?' } netident_t; /* * Prototypes function signatures. */ int setup_pcap_source(void); int setup_bpf_filter(char **); int setup_matcher(void); void process(u_char *, struct pcap_pkthdr *, u_char *); void version(void); void usage(); void update_windowsize(int32_t); void clean_exit(int32_t); void dump_packet(struct pcap_pkthdr *, u_char *, uint8_t, unsigned char *, uint32_t, const char *, const char *, uint16_t, uint16_t, uint8_t, uint16_t, uint8_t, uint16_t, uint32_t); void dump_unwrapped(unsigned char *, uint32_t, uint16_t, uint16_t); void dump_formatted(unsigned char *, uint32_t, uint16_t, uint16_t); void dump_byline (unsigned char *, uint32_t, uint16_t, uint16_t); void dump_delay_proc_init(struct pcap_pkthdr *); void dump_delay_proc (struct pcap_pkthdr *); int8_t re_match_func (unsigned char *, uint32_t, uint16_t *, uint16_t *); int8_t bin_match_func (unsigned char *, uint32_t, uint16_t *, uint16_t *); int8_t blank_match_func(unsigned char *, uint32_t, uint16_t *, uint16_t *); void print_time_absolute(struct pcap_pkthdr *); void print_time_diff (struct pcap_pkthdr *); void print_time_offset (struct pcap_pkthdr *); char *get_filter_from_string(char *); char *get_filter_from_argv (char **); uint8_t strishex(char *); #if !defined(_WIN32) void drop_privs(void); #endif #if defined(_WIN32) int8_t win32_initwinsock(void); void win32_listdevices(void); char *win32_usedevice(const char *); char *win32_choosedevice(void); #endif struct NGREP_rtaphdr_t { uint8_t it_version; uint8_t it_pad; uint16_t it_len; uint32_t it_present; }; /* * ANSI color/hilite stuff. */ const char ANSI_red[] = "\33[01;31m"; const char ANSI_bold[] = "\33[01m"; const char *ANSI_hilite = ANSI_red; const char ANSI_off[] = "\33[00m"; ngrep-1_47/EXAMPLES.md0000644000175000017500000004166113154335003013742 0ustar romainromainSome helpful tips: * When the intention is to match all packets (i.e. blank regex), it is technically faster to use an empty regex (`''`) than to use a wildcard (e.g. `'.*'`, `'*'`). * When sniffing interfaces that are very busy or are seeing large amounts of packet traffic, make sure to craft a BPF filter to limit what PCAP has to deliver to ngrep. The ngrep parser takes a certain amount of time and while negligible on a slow interface, it can add up very quickly on a busy one. * Hexadecimal expressions can be in straight numeric form, 'DEADBEEF', or in symbolic form, '0xDEADBEEF'. A byte is the smallest unit of measure you can match against. * As of v1.28, ngrep doesn't require a match expression. However, there are cases where ngrep can be confused and think part of your bpf filter is the match expression, as in: ``` % ngrep not port 80 interface: eth0 (192.168.1.0/255.255.255.0) filter: ip and ( port 80 ) match: not ``` In cases like this, you will need to specify a blank match expression: ``` % ngrep '' not port 80 interface: eth0 (192.168.1.0/255.255.255.0) filter: ip and ( not port 80 ) ``` ## Basic Packet Sniffing Basic packet sniffing is easy with ngrep. It supports BPF filter logic, which means to say constraining what ngrep sees and displays is as easy as saying something like `ngrep host foo.bar.com and port 25`. Following are a few examples of common invocations of ngrep to do basic packet sniffing. Please note the usage of `any' as the specified ethernet adaptor to attach to; in most recent UNIX libpcap implementations this will instruct ngrep to attach to all interfaces at once, local (lo) and all external interfaces that may be active. * `ngrep -d any port 25` Monitor all activity crossing source or destination port 25 (SMTP). * `ngrep -d any 'error' port syslog` Monitor any network-based syslog traffic for the occurrence of the word "error". ngrep knows how to convert service port names (on UNIX, located in `/etc/services`) to port numbers. * `ngrep -wi -d any 'user|pass' port 21` Monitor any traffic crossing source or destination port 21 (FTP), looking case-insensitively for the words "user" or "pass", matched as word-expressions (the match term(s) must have non-alphanumeric, delimiting characters surrounding them). ## Debugging HTTP interactions In certain scenarios it is desirous to see how web browsers communicate with web servers, and to inspect the HTTP headers and possibly cookie values that they are exchanging. In this example, we run an ngrep on a webserver. Since it only has one interface, eth0, we omit specifying the interface manually on the command line and allow ngrep to choose the default interface for us, for convenience. ``` # ngrep port 80 interface: eth0 (64.90.164.72/255.255.255.252) filter: ip and ( port 80 ) #### T 67.169.59.38:42167 -> 64.90.164.74:80 [AP] GET / HTTP/1.1..User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; X11; Linux i 686) Opera 7.21 [en]..Host: www.darkridge.com..Accept: text/html, applicat ion/xml;q=0.9, application/xhtml+xml;q=0.9, image/png, image/jpeg, image/gi f, image/x-xbitmap, */*;q=0.1..Accept-Charset: iso-8859-1, utf-8, utf-16, * ;q=0.1..Accept-Encoding: deflate, gzip, x-gzip, identity, *;q=0..Cookie: SQ MSESSID=5272f9ae21c07eca4dfd75f9a3cda22e..Cookie2: $Version=1..Connection: Keep-Alive, TE..TE: deflate, gzip, chunked, identity, trailers.... ## T 64.90.164.74:80 -> 67.169.59.38:42167 [AP] HTTP/1.1 200 OK..Date: Mon, 29 Mar 2004 00:44:40 GMT..Server: Apache/2.0.49 (Unix)..Last-Modified: Tue, 04 Nov 2003 12:09:41 GMT..ETag: "210e23-326-f8 200b40"..Accept-Ranges: bytes..Vary: Accept-Encoding,User-Agent..Content-En coding: gzip..Content-Length: 476..Keep-Alive: timeout=15, max=100..Connect ion: Keep-Alive..Content-Type: text/html; charset=ISO-8859-1..Content-Langu age: en..............}S]..0.|...........H...8........@..\....(.....Dw.%.,.. ;.k.....Y>q<........d ...........3.i..kdm.u@d{.Q..\....@..B1.0.2YI^..R..... ....X......X..y...\.....,..(........1...g.......*...j..a.`._@.W....0.....?. .R.K.j..Y.....>...;kw*U.j.<...\0Tn.l.:......>Fs....'....h.'...u.H4..'.6.vID I.......N.r.O...}...I.w. ...mX...L.s..{.L.R..-...e....~nu..t.3...H..#..J... .u.?..]....^..2.....e8v/gP.....].48...qD!..........#y...m}..>/?..#........I ..I..4.P......2:...n8l.......!.Yr&... ## ``` As you can see, all headers and aspects of the HTTP transmission are exposed in their gory detail. It's a little hard to parse though, so let's see what happens when `-W byline` mode is used: ``` # ngrep -W byline port 80 interface: eth0 (64.90.164.72/255.255.255.252) filter: ip and ( port 80 ) #### T 67.169.59.38:42177 -> 64.90.164.74:80 [AP] GET / HTTP/1.1. User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; X11; Linux i686) Opera ... Host: www.darkridge.com. Accept: text/html, application/xml;q=0.9, application/xhtml+xml;q=0.9 ... Accept-Charset: iso-8859-1, utf-8, utf-16, *;q=0.1. Accept-Encoding: deflate, gzip, x-gzip, identity, *;q=0. Cookie: SQMSESSID=5272f9ae21c07eca4dfd75f9a3cda22e. Cookie2: $Version=1. Cache-Control: no-cache. Connection: Keep-Alive, TE. TE: deflate, gzip, chunked, identity, trailers. . ## T 64.90.164.74:80 -> 67.169.59.38:42177 [AP] HTTP/1.1 200 OK. Date: Mon, 29 Mar 2004 00:47:25 GMT. Server: Apache/2.0.49 (Unix). Last-Modified: Tue, 04 Nov 2003 12:09:41 GMT. ETag: "210e23-326-f8200b40". Accept-Ranges: bytes. Vary: Accept-Encoding,User-Agent. Content-Encoding: gzip. Content-Length: 476. Keep-Alive: timeout=15, max=100. Connection: Keep-Alive. Content-Type: text/html; charset=ISO-8859-1. Content-Language: en. . ..........}S]..0.|...........H...8........@..\....(.....Dw.%.,..;.k.. ... .;kw*U.j.<...\0Tn.l.:......>Fs....'....h.'...u.H4..'.6.vIDI.......N.r ... ..H..#..J....u.?..]....^..2.....e8v/gP.....].48...qD!..........#y...m ... #### ``` (Content visually truncated for display purposes.) `-W byline` mode tells ngrep to respect embedded line feeds when they occur. You'll note from the output above that there is still a trailing dot (".") on each line, which is the carriage-return portion of the CRLF pair. Using this mode, now the output has become much easier to visually parse. ## Processing PCAP dump files, looking for patterns I had a friend who worked at Network Solutions and among the things he did was analyze huge 500M+ PCAP dump files of DNS traffic, looking for patterns and anomalies. ngrep was an invaluable tool for this purpose; it allowed him to take one instance of a network dump and search it quickly and repeatedly for patterns in the data packets. To save a PCAP dump file from ngrep is very easy; simply run ngrep as you normally would but add one more command line option: `-O some.file.dump` (the name of the file is largely irrelevant). To illustrate another feature of ngrep, we will use the `-T` option (print time differential information). ``` # ngrep -O /tmp/dns.dump -d any -T port domain interface: any filter: ip and ( port domain ) output: /tmp/dns.dump # U +0.000000 203.115.225.24:53 -> 64.90.164.74:53 .............m.razor2.cloudmark.com.......)........ # U +0.000281 64.90.164.74:53 -> 203.115.225.24:53 .............m.razor2.cloudmark.com................'.ns1...hostmaster..ws.. ..p.... ..:.......)........ # U +0.078184 195.113.155.7:2949 -> 64.90.164.74:53 .............a.razor2.cloudmark.com..... # U +0.000351 64.90.164.74:53 -> 195.113.155.7:2949 .............a.razor2.cloudmark.com..................agony...4..........B.. ..............ns1...............ns2...............ns3...X..........@Z.J.j.. ........@Z...|..........B..; ^Cexit 6 received, 0 dropped ``` Note the `output:` indicator and timestamp information. Now we have a PCAP dump file, and so let's search it for some patterns: ``` # ngrep -w 'm' -I /tmp/dns.dump input: /tmp/dns.dump match: ((^m\W)|(\Wm$)|(\Wm\W)) # U 203.115.225.24:53 -> 64.90.164.74:53 .............m.razor2.cloudmark.com.......)........ # U 64.90.164.74:53 -> 203.115.225.24:53 .............m.razor2.cloudmark.com................'.ns1...hostmaster..ws.. ..p.... ..:.......)........ ##exit ``` Above we searched for the letter "m", matched as a word (`-w`). This yields two packets. ``` # ngrep -tD ns3 -I /tmp/dns.dump input: /tmp/dns.dump match: ns3 #### U 2004/03/28 20:32:37.088525 64.90.164.74:53 -> 195.113.155.7:2949 .............a.razor2.cloudmark.com..................agony...4..........B.. ..............ns1...............ns2...............ns3...X..........@Z.J.j.. ........@Z...|..........B..; exit ``` Here we've added `-t` which means print the absolute timestamp on the packet, and `-D` which means replay the packets by the time interval at which they were recorded. The latter is a neat little feature for observing the traffic at the rates/times they originally seen, though in this example it's not terribly effective as there is only one packet being matched. ``` # ngrep -I /tmp/dns.dump port 80 input: /tmp/dns.dump filter: ip and ( port 80 ) exit ``` There's no port 80 traffic in the dump, so of course the BPF filter yields us no results. ## Observing binary being transferred across the wire One interesting feature of ngrep is its ability to take a hexademical (binary) expression and search for that in lieu of a regular expression. ngrep can also display the packets it observes in a hexadecimal format, which is more effective for inspecting binary content patterns. In this example, we will simply look for a binary pattern in a web stream, but the more obvious usage is to look for a DDoS Zombie's unique binary signature (say, from a command packet), or even a Worm/Virus being transferred across the wire as it propogates itself. For this test, let's assume we have a GIF on a web server that has the data pattern "0xc5d5e5f55666768696a6b6c6d6e6" (hexademical) in it. Once `-X` is specified, the expression will be interpreted as a hexademical pattern instead of a regular expression, and the "0x" prefix is optional. To see a packet like this cross the wire: ``` # ngrep -xX '0xc5d5e5f55666768696a6b6c6d6e6' port 80 interface: eth0 (64.90.164.72/255.255.255.252) filter: ip and ( port 80 ) match: 0xc5d5e5f55666768696a6b6c6d6e6 ### T 64.90.164.74:80 -> 67.169.59.38:42306 [A] ff d8 ff e0 00 10 4a 46 49 46 00 01 02 01 00 48 ......JFIF.....H 00 48 00 00 ff ed 13 ba 50 68 6f 74 6f 73 68 6f .H......Photosho 70 20 33 2e 30 00 38 42 49 4d 03 ed 00 00 00 00 p 3.0.8BIM...... 00 10 00 48 00 00 00 01 00 01 00 48 00 00 00 01 ...H.......H.... 00 01 38 42 49 4d 04 0d 00 00 00 00 00 04 00 00 ..8BIM.......... 00 78 38 42 49 4d 03 f3 00 00 00 00 00 08 00 00 .x8BIM.......... 00 00 00 00 00 00 38 42 49 4d 04 0a 00 00 00 00 ......8BIM...... 00 01 00 00 38 42 49 4d 27 10 00 00 00 00 00 0a ....8BIM'....... 00 01 00 00 00 00 00 00 00 02 38 42 49 4d 03 f5 ..........8BIM.. 00 00 00 00 00 48 00 2f 66 66 00 01 00 6c 66 66 .....H./ff...lff 00 06 00 00 00 00 00 01 00 2f 66 66 00 01 00 a1 ........./ff.... 99 9a 00 06 00 00 00 00 00 01 00 32 00 00 00 01 ...........2.... 00 5a 00 00 00 06 00 00 00 00 00 01 00 35 00 00 .Z...........5.. 00 01 00 2d 00 00 00 06 00 00 00 00 00 01 38 42 ...-..........8B 49 4d 03 f8 00 00 00 00 00 70 00 00 ff ff ff ff IM.......p...... ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ ff ff 03 e8 00 00 00 00 ff ff ff ff ff ff ff ff ................ ff ff ff ff ff ff ff ff ff ff ff ff ff ff 03 e8 ................ 00 00 00 00 ff ff ff ff ff ff ff ff ff ff ff ff ................ ff ff ff ff ff ff ff ff ff ff 03 e8 00 00 00 00 ................ ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ ff ff ff ff ff ff 03 e8 00 00 38 42 49 4d 04 08 ..........8BIM.. 00 00 00 00 00 10 00 00 00 01 00 00 02 40 00 00 .............@.. 02 40 00 00 00 00 38 42 49 4d 04 14 00 00 00 00 .@....8BIM...... 00 04 00 00 00 06 38 42 49 4d 04 0c 00 00 00 00 ......8BIM...... 12 2a 00 00 00 01 00 00 00 70 00 00 00 57 00 00 .*.......p...W.. 01 50 00 00 72 30 00 00 12 0e 00 18 00 01 ff d8 .P..r0.......... ff e0 00 10 4a 46 49 46 00 01 02 01 00 48 00 48 ....JFIF.....H.H 00 00 ff fe 00 26 46 69 6c 65 20 77 72 69 74 74 .....&File writt 65 6e 20 62 79 20 41 64 6f 62 65 20 50 68 6f 74 en by Adobe Phot 6f 73 68 6f 70 a8 20 35 2e 30 ff ee 00 0e 41 64 oshop. 5.0....Ad 6f 62 65 00 64 80 00 00 00 01 ff db 00 84 00 0c obe.d........... 08 08 08 09 08 0c 09 09 0c 11 0b 0a 0b 11 15 0f ................ 0c 0c 0f 15 18 13 13 15 13 13 18 11 0c 0c 0c 0c ................ 0c 0c 11 0c 0c 0c 0c 0c 0c 0c 0c 0c 0c 0c 0c 0c ................ 0c 0c 0c 0c 0c 0c 0c 0c 0c 0c 0c 0c 0c 0c 0c 01 ................ 0d 0b 0b 0d 0e 0d 10 0e 0e 10 14 0e 0e 0e 14 14 ................ 0e 0e 0e 0e 14 11 0c 0c 0c 0c 0c 11 11 0c 0c 0c ................ 0c 0c 0c 11 0c 0c 0c 0c 0c 0c 0c 0c 0c 0c 0c 0c ................ 0c 0c 0c 0c 0c 0c 0c 0c 0c 0c 0c 0c 0c 0c 0c 0c ................ ff c0 00 11 08 00 57 00 70 03 01 22 00 02 11 01 ......W.p..".... 03 11 01 ff dd 00 04 00 07 ff c4 01 3f 00 00 01 ............?... 05 01 01 01 01 01 01 00 00 00 00 00 00 00 03 00 ................ 01 02 04 05 06 07 08 09 0a 0b 01 00 01 05 01 01 ................ 01 01 01 01 00 00 00 00 00 00 00 01 00 02 03 04 ................ 05 06 07 08 09 0a 0b 10 00 01 04 01 03 02 04 02 ................ 05 07 06 08 05 03 0c 33 01 00 02 11 03 04 21 12 .......3......!. 31 05 41 51 61 13 22 71 81 32 06 14 91 a1 b1 42 1.AQa."q.2.....B 23 24 15 52 c1 62 33 34 72 82 d1 43 07 25 92 53 #$.R.b34r..C.%.S f0 e1 f1 63 73 35 16 a2 b2 83 26 44 93 54 64 45 ...cs5....&D.TdE c2 a3 74 36 17 d2 55 e2 65 f2 b3 84 c3 d3 75 e3 ..t6..U.e.....u. f3 46 27 94 a4 85 b4 95 c4 d4 e4 f4 a5 b5 c5 d5 .F'............. e5 f5 56 66 76 86 96 a6 b6 c6 d6 e6 f6 37 47 57 ..Vfv........7GW 67 77 87 97 a7 b7 c7 d7 e7 f7 11 00 02 02 01 02 gw.............. 04 04 03 04 05 06 07 07 06 05 35 01 00 02 11 03 ..........5..... 21 31 12 04 41 51 61 71 22 13 05 32 81 91 14 a1 !1..AQaq"..2.... b1 42 23 c1 52 d1 f0 33 24 62 e1 72 82 92 43 53 .B#.R..3$b.r..CS 15 63 73 34 f1 25 06 16 a2 b2 83 07 26 35 c2 d2 .cs4.%......&5.. 44 93 54 a3 17 64 45 55 36 74 65 e2 f2 b3 84 c3 D.T..dEU6te..... d3 75 e3 f3 46 94 a4 85 b4 95 c4 d4 e4 f4 a5 b5 .u..F........... c5 d5 e5 f5 56 66 76 86 96 a6 b6 c6 d6 e6 f6 27 ....Vfv........' 37 47 57 67 77 87 97 a7 b7 c7 ff da 00 0c 03 01 7GWgw........... 00 02 11 03 11 00 3f 00 f2 a5 3a ad 35 ba 40 0e ......?...:.5.@. 04 16 90 78 20 a8 25 07 94 aa d3 19 18 90 41 a2 ...x .%.......A. 13 9a 4b 9b b9 a0 91 c8 3d c8 ef a7 f2 14 46 35 ..K.....=.....F5 af fe 6c 6f f8 73 e3 3b 7e 92 6a ad 2c 30 75 64 ..lo.s.;~.j.,0ud 82 47 fd f9 a7 f3 5c 8a ec d7 b5 e4 d2 4b 79 0d .G....\......Ky. 73 a0 ba 3f f2 49 87 8b 61 4d 88 fd de 40 4a 66 s..?.I..aM...@Jf 51 fd e8 c7 e6 ff 00 03 f4 5a ee 63 d8 76 bd a5 Q........Z.c.v.. a4 76 22 13 29 d9 75 b6 99 b1 ee 7c 71 b8 ca 82 .v".).u....|q... 78 be ad 79 70 f1 1e 1b e1 e9 c5 f3 29 24 92 49 x..yp.......)$.I 0a 49 24 92 52 92 45 c7 c4 bf 25 c5 b4 b7 76 d1 .I$.R.E...%...v. 2e 3c 00 3f 94 ef a2 d5 6f 33 a3 64 e1 63 7a f9 .<.?....o3.d.cz. 0f a9 85 c5 bb 29 f5 18 eb 1c 1c 1d b9 e2 ba 9c .....).......... ff 00 63 36 fe 7a 69 c9 00 44 4c 87 11 da 3d 57 ..c6.zi..DL...=W 8c 59 0c 4c c4 4f 08 fd 2e 8d 3a da e7 1d 8d 11 .Y.L.O....:..... 22 75 47 ca fb 35 78 d5 d2 c2 1f 7c 87 58 f6 ea "uG..5x....|.X.. 06 91 e9 ef fc e4 1b 5f 4c 33 d1 05 a7 68 0f 27 ......._L3...h.' b9 fc e8 42 4a ac 83 a8 ae 8c 9e e0 84 65 00 23 ...BJ........e.# 23 21 5c 7f 37 0c 7e 6f 47 f5 9f ff d0 f2 ae ca #!\.7.~oG....... 62 36 c1 3a 1f c0 84 cd 69 71 81 c9 47 a6 f6 e3 b6.:....iq..G... 3f 75 41 af 78 e1 ef 12 27 fe 0d bf f9 24 f1 3e ?uA.x...'....$.> 0d 40 e2 24 55 7f 15 f0 80 91 1c 52 e0 85 eb 2a .@.$U......R...* e2 ff 00 16 3f a4 c2 fc 5c 8a 1a c7 da c2 c6 d9 ....?...\....... f4 67 c9 05 5f ca ea 37 3c fa 77 1a b2 1b e2 01 .g.._..7<.w..... 81 3d 83 bd 8a 2e a8 67 39 b5 e0 63 90 e6 34 9b .=.....g9..c..4. 00 20 ff 00 68 f1 ec 67 ef a8 63 29 50 e3 00 5f . ..h..g..c)P.._ 51 f2 b3 f3 18 79 70 66 70 e5 26 30 e1 a8 65 1f Q....ypfp.&0..e. ad 9c bf 4e 8e 3e 2c 5f f3 d8 62 f4 dc ac a6 ef ...N.>,_..b..... a8 02 c0 40 73 8b 86 93 fb df 9c b6 3a 66 36 0d ...@s.......:f6. 6c 73 18 45 b7 6a 2c de ls.E.j,. ######### ``` Above we specified `-X` to tell ngrep to treat the match expression as hexadecimal, and `-x` to tell ngrep to print out the patterns it matches in hexadecimal form. As it turns out, several other packets also matched this pattern, but this should give you a good idea of how to use hexadecimal patterns and the hex output mode. ngrep-1_47/tcpkill.c0000644000175000017500000000401113154335003013774 0ustar romainromain/* * tcpkill.c * * Kill TCP connections already in progress. * * Copyright (c) 2000 Dug Song * * $Id: tcpkill.c,v 1.17 2001/03/17 08:10:43 dugsong Exp $ */ #include #include #include #include #include #include #include #include "tcpkill.h" libnet_t *l; void tcpkill_kill(const struct pcap_pkthdr *pcap, const u_char *pkt, uint32_t pcap_off, uint32_t kill_count) { struct libnet_ipv4_hdr *ip; struct libnet_tcp_hdr *tcp; u_char ctext[64]; uint32_t seq, win, i, len; pkt += pcap_off; len = pcap->caplen - pcap_off; ip = (struct libnet_ipv4_hdr *)pkt; if (ip->ip_p != IPPROTO_TCP) return; tcp = (struct libnet_tcp_hdr *)(pkt + (ip->ip_hl << 2)); if (tcp->th_flags & (TH_SYN|TH_FIN|TH_RST)) return; seq = ntohl(tcp->th_ack); win = ntohs(tcp->th_win); snprintf(ctext, sizeof(ctext), "%s:%d > %s:%d:", libnet_addr2name4(ip->ip_src.s_addr, LIBNET_DONT_RESOLVE), ntohs(tcp->th_sport), libnet_addr2name4(ip->ip_dst.s_addr, LIBNET_DONT_RESOLVE), ntohs(tcp->th_dport)); for (i = 0; i < kill_count; i++) { seq += (i * win); libnet_clear_packet(l); libnet_build_tcp(ntohs(tcp->th_dport), ntohs(tcp->th_sport), seq, 0, TH_RST, 0, 0, 0, LIBNET_TCP_H, NULL, 0, l, 0); libnet_build_ipv4(LIBNET_IPV4_H + LIBNET_TCP_H, 0, libnet_get_prand(LIBNET_PRu16), 0, 64, IPPROTO_TCP, 0, ip->ip_dst.s_addr, ip->ip_src.s_addr, NULL, 0, l, 0); if (libnet_write(l) < 0) warn("write"); fprintf(stderr, "%s R %lu:%lu(0) win 0\n", ctext, seq, seq); } } void tcpkill_init(void) { char *intf, ebuf[PCAP_ERRBUF_SIZE]; char libnet_ebuf[LIBNET_ERRBUF_SIZE]; if ((intf = pcap_lookupdev(ebuf)) == NULL) errx(1, "%s", ebuf); if ((l = libnet_init(LIBNET_RAW4, intf, libnet_ebuf)) == NULL) errx(1, "couldn't initialize sending"); libnet_seed_prand(l); } ngrep-1_47/ngrep.c0000644000175000017500000012164413154335003013461 0ustar romainromain/* * Copyright (c) 2017 Jordan Ritter * * Please refer to the LICENSE file for more information. * */ #if defined(BSD) || defined(SOLARIS) || defined(MACOSX) #include #include #include #include #include #include #include #include #include #include #endif #if defined(OSF1) #include #include #include #include #include #include #include #include #include #endif #if defined(LINUX) || defined(__GLIBC__) || defined(__GNU__) #include #include #include #include #include #include #include #endif #if defined(AIX) #include #include #include #include #include #include #endif #if defined(_WIN32) #include #include #include #include #include #include #define strcasecmp stricmp #define strncasecmp strnicmp #else #include #include #include #include #include #endif #include #include #include #include #if !defined(_WIN32) #include #include #endif #include #ifdef HAVE_CONFIG_H #include "config.h" #endif #if USE_IPv6 && !defined(_WIN32) #include #include #endif #if USE_PCRE #include #else #include #endif #include "ngrep.h" /* * Configuration Options */ uint32_t snaplen = 65535, limitlen = 65535, promisc = 1, to = 100; uint32_t match_after = 0, keep_matching = 0, matches = 0, max_matches = 0; uint32_t seen_frames = 0; #if USE_TCPKILL uint32_t tcpkill_active = 0; #endif uint8_t re_match_word = 0, re_ignore_case = 0, re_multiline_match = 1; uint8_t show_empty = 0, show_hex = 0, show_proto = 0, quiet = 0; uint8_t invert_match = 0, bin_match = 0; uint8_t live_read = 1, want_delay = 0; uint8_t dont_dropprivs = 0; uint8_t enable_hilite = 0; char *read_file = NULL, *dump_file = NULL; char *usedev = NULL; char nonprint_char = '.'; /* * GNU Regex/PCRE */ #if USE_PCRE int32_t err_offset; char *re_err = NULL; pcre *pattern = NULL; pcre_extra *pattern_extra = NULL; #else const char *re_err = NULL; struct re_pattern_buffer pattern; #endif /* * Matching */ char *match_data = NULL, *bin_data = NULL; uint16_t match_len = 0; int8_t (*match_func)() = &blank_match_func; int8_t dump_single = 0; void (*dump_func)(unsigned char *, uint32_t, uint16_t, uint16_t) = &dump_formatted; /* * BPF/Network */ char *filter = NULL, *filter_file = NULL; char pc_err[PCAP_ERRBUF_SIZE]; uint8_t link_offset; uint8_t radiotap_present = 0; uint8_t include_vlan = USE_VLAN_HACK; pcap_t *pd = NULL, *pd_dumppcap = NULL; pcap_dumper_t *pd_dump = NULL; struct bpf_program pcapfilter; struct in_addr net, mask; /* * Timestamp/delay functionality */ struct timeval prev_ts = {0, 0}, prev_delay_ts = {0,0}; #if defined(_WIN32) struct timeval delay_tv; FD_SET delay_fds; SOCKET delay_socket = 0; #endif void (*print_time)() = NULL, (*dump_delay)() = dump_delay_proc_init; /* * Window-size functionality (adjust output based on width of console display) */ uint32_t ws_row, ws_col = 80, ws_col_forced = 0; int main(int argc, char **argv) { int32_t c; signal(SIGINT, clean_exit); signal(SIGABRT, clean_exit); #if !defined(_WIN32) signal(SIGQUIT, clean_exit); signal(SIGPIPE, clean_exit); signal(SIGWINCH, update_windowsize); #endif setlocale(LC_ALL, ""); #if !defined(_WIN32) { char const *locale = getenv("LANG"); if (locale == NULL) locale = "en_US"; setlocale(LC_CTYPE, locale); } #endif while ((c = getopt(argc, argv, "LNhXViwqpevxlDtTRMK:Cs:n:c:d:A:I:O:S:P:F:W:")) != EOF) { switch (c) { case 'W': { if (!strcasecmp(optarg, "normal")) dump_func = &dump_formatted; else if (!strcasecmp(optarg, "byline")) dump_func = &dump_byline; else if (!strcasecmp(optarg, "none")) dump_func = &dump_unwrapped; else if (!strcasecmp(optarg, "single")) { dump_func = &dump_unwrapped; dump_single = 1; } else { printf("fatal: unknown wrap method '%s'\n", optarg); usage(); } } break; case 'F': filter_file = optarg; break; case 'P': nonprint_char = *optarg; break; case 'S': { limitlen = _atoui32(optarg); break; } case 'O': dump_file = optarg; break; case 'I': read_file = optarg; break; case 'A': match_after = _atoui32(optarg); if (match_after < UINT32_MAX) match_after++; break; #if defined(_WIN32) case 'L': win32_listdevices(); clean_exit(2); case 'd': usedev = win32_usedevice(optarg); break; #else case 'L': perror("-L is a Win32-only option"); clean_exit(2); case 'd': usedev = optarg; /* Linux: any = DLT_LINUX_SLL, pcap says incompatible with VLAN */ if (!strncasecmp(usedev, "any", 3)) include_vlan = 0; break; #endif case 'c': ws_col_forced = atoi(optarg); break; case 'n': max_matches = _atoui32(optarg); break; case 's': { uint16_t value = _atoui32(optarg); if (value > 0) snaplen = value; } break; case 'C': enable_hilite = 1; break; case 'M': re_multiline_match = 0; break; case 'R': dont_dropprivs = 1; break; case 'T': if (print_time == &print_time_diff) { print_time = print_time_offset; memset(&prev_ts, 0, sizeof(prev_ts)); } else { print_time = &print_time_diff; #if defined(_WIN32) prev_ts.tv_sec = (uint32_t)time(NULL); prev_ts.tv_usec = 0; #else gettimeofday(&prev_ts, NULL); #endif } break; case 't': print_time = &print_time_absolute; break; case 'D': want_delay = 1; break; case 'l': setvbuf(stdout, NULL, _IOLBF, 0); break; case 'x': show_hex++; break; case 'v': invert_match++; break; case 'e': show_empty++; break; case 'p': promisc = 0; break; case 'q': quiet++; break; case 'w': re_match_word++; break; case 'i': re_ignore_case++; break; case 'V': version(); case 'X': bin_match++; break; case 'N': show_proto++; break; #if USE_TCPKILL case 'K': tcpkill_active = _atoui32(optarg); break; #endif case 'h': usage(); default: usage(); } } if (show_hex && dump_func != &dump_formatted) { printf("fatal: -x (hex dump) is incompatible with -W (alternate format)\n"); usage(); } if (argv[optind]) match_data = argv[optind++]; #if USE_TCPKILL if (tcpkill_active) tcpkill_init(); #endif /* Setup PCAP input */ if (setup_pcap_source()) clean_exit(2); /* Setup BPF filter */ if (setup_bpf_filter(argv)) { include_vlan = 0; if (filter) { free(filter); filter = NULL; } if (setup_bpf_filter(argv)) { pcap_perror(pd, "pcap"); clean_exit(2); } } if (filter) { if (quiet < 2) printf("filter: %s\n", filter); free(filter); } /* Setup matcher */ if (match_data) { if (setup_matcher()) clean_exit(2); if (quiet < 2 && strlen(match_data)) printf("%smatch: %s%s\n", invert_match?"don't ":"", (bin_data && !strchr(match_data, 'x'))?"0x":"", match_data); if (re_match_word) free(match_data); } /* Misc */ if (dump_file) { pd_dump = pcap_dump_open(pd, dump_file); if (!pd_dump) { fprintf(stderr, "fatal: %s\n", pcap_geterr(pd)); clean_exit(2); } else printf("output: %s\n", dump_file); } update_windowsize(0); #if defined(_WIN32) win32_initwinsock(); #endif #if !defined(_WIN32) && USE_DROPPRIVS drop_privs(); #endif while (pcap_loop(pd, -1, (pcap_handler)process, 0)); clean_exit(0); /* NOT REACHED */ return 0; } int setup_pcap_source(void) { if (read_file) { if (!(pd = pcap_open_offline(read_file, pc_err))) { perror(pc_err); return 1; } live_read = 0; printf("input: %s\n", read_file); } else { char *dev = usedev ? usedev : #if defined(_WIN32) win32_choosedevice(); #else pcap_lookupdev(pc_err); #endif if (!dev) { perror(pc_err); return 1; } if ((pd = pcap_open_live(dev, snaplen, promisc, to, pc_err)) == NULL) { perror(pc_err); return 1; } if (pcap_lookupnet(dev, &net.s_addr, &mask.s_addr, pc_err) == -1) { perror(pc_err); memset(&net, 0, sizeof(net)); memset(&mask, 0, sizeof(mask)); } if (quiet < 2) { printf("interface: %s", dev); if (net.s_addr && mask.s_addr) { printf(" (%s/", inet_ntoa(net)); printf("%s)", inet_ntoa(mask)); } printf("\n"); } } switch(pcap_datalink(pd)) { case DLT_EN10MB: link_offset = ETHHDR_SIZE; break; case DLT_IEEE802: link_offset = TOKENRING_SIZE; break; case DLT_FDDI: link_offset = FDDIHDR_SIZE; break; case DLT_SLIP: link_offset = SLIPHDR_SIZE; break; case DLT_PPP: link_offset = PPPHDR_SIZE; break; #if HAVE_DLT_LOOP case DLT_LOOP: #endif case DLT_NULL: link_offset = LOOPHDR_SIZE; break; #if HAVE_DLT_RAW case DLT_RAW: link_offset = RAWHDR_SIZE; break; #endif #if HAVE_DLT_LINUX_SLL case DLT_LINUX_SLL: link_offset = ISDNHDR_SIZE; include_vlan = 0; break; #endif #if HAVE_DLT_IEEE802_11_RADIO case DLT_IEEE802_11_RADIO: radiotap_present = 1; #endif #if HAVE_DLT_IEEE802_11 case DLT_IEEE802_11: link_offset = IEEE80211HDR_SIZE; break; #endif #if HAVE_DLT_PFLOG case DLT_PFLOG: link_offset = PFLOGHDR_SIZE; break; #endif #if HAVE_DLT_IPNET case DLT_IPNET: link_offset = IPNETHDR_SIZE; include_vlan = 0; break; #endif default: fprintf(stderr, "fatal: unsupported interface type %u\n", pcap_datalink(pd)); return 1; } return 0; } int setup_bpf_filter(char **argv) { if (filter_file) { char buf[1024] = {0}; FILE *f = fopen(filter_file, "r"); if (!f || !fgets(buf, sizeof(buf)-1, f)) { fprintf(stderr, "fatal: unable to get filter from %s: %s\n", filter_file, strerror(errno)); usage(); } fclose(f); filter = get_filter_from_string(buf); if (pcap_compile(pd, &pcapfilter, filter, 0, mask.s_addr)) return 1; } else if (argv[optind]) { filter = get_filter_from_argv(&argv[optind]); if (pcap_compile(pd, &pcapfilter, filter, 0, mask.s_addr)) { free(filter); filter = get_filter_from_argv(&argv[optind-1]); #if USE_PCAP_RESTART PCAP_RESTART_FUNC(); #endif if (pcap_compile(pd, &pcapfilter, filter, 0, mask.s_addr)) return 1; match_data = NULL; } } else { filter = include_vlan ? strdup(BPF_TEMPLATE_IP_VLAN) : strdup(BPF_TEMPLATE_IP); if (pcap_compile(pd, &pcapfilter, filter, 0, mask.s_addr)) return 1; } if (pcap_setfilter(pd, &pcapfilter)) return 1; return 0; } int setup_matcher(void) { if (bin_match) { uint32_t i = 0, n; uint32_t len; char *s, *d; if (re_match_word || re_ignore_case) { fprintf(stderr, "fatal: regex switches are incompatible with binary matching\n"); return 1; } len = (uint32_t)strlen(match_data); if (len % 2 != 0 || !strishex(match_data)) { fprintf(stderr, "fatal: invalid hex string specified\n"); return 1; } bin_data = (char*)malloc(len / 2); memset(bin_data, 0, len / 2); d = bin_data; if ((s = strchr(match_data, 'x'))) len -= (uint32_t)(++s - match_data - 1); else s = match_data; while (i <= len) { sscanf(s+i, "%2x", &n); *d++ = n; i += 2; } match_len = len / 2; match_func = &bin_match_func; } else { #if USE_PCRE uint32_t pcre_options = PCRE_UNGREEDY; if (re_ignore_case) pcre_options |= PCRE_CASELESS; if (re_multiline_match) pcre_options |= PCRE_DOTALL; #else re_syntax_options = RE_CHAR_CLASSES | RE_NO_BK_PARENS | RE_NO_BK_VBAR | RE_CONTEXT_INDEP_ANCHORS | RE_CONTEXT_INDEP_OPS; if (re_multiline_match) re_syntax_options |= RE_DOT_NEWLINE; if (re_ignore_case) { uint32_t i; char *s; pattern.translate = (char*)malloc(256); s = pattern.translate; for (i = 0; i < 256; i++) s[i] = i; for (i = 'A'; i <= 'Z'; i++) s[i] = i + 32; s = match_data; while (*s) { *s = tolower(*s); s++; } } else pattern.translate = NULL; #endif if (re_match_word) { char *word_regex = (char*)malloc(strlen(match_data) * 3 + strlen(WORD_REGEX)); sprintf(word_regex, WORD_REGEX, match_data, match_data, match_data); match_data = word_regex; } #if USE_PCRE pattern = pcre_compile(match_data, pcre_options, (const char **)&re_err, &err_offset, 0); if (!pattern) { fprintf(stderr, "compile failed: %s\n", re_err); return 1; } pattern_extra = pcre_study(pattern, 0, (const char **)&re_err); #else re_err = re_compile_pattern(match_data, strlen(match_data), &pattern); if (re_err) { fprintf(stderr, "regex compile: %s\n", re_err); return 1; } pattern.fastmap = (char*)malloc(256); if (re_compile_fastmap(&pattern)) { perror("fastmap compile failed"); return 1; } #endif match_func = &re_match_func; } return 0; } static inline uint8_t vlan_frame_count(u_char *p, uint16_t limit) { uint8_t *et = (uint8_t*)(p + 12); uint16_t ether_type = EXTRACT_16BITS(et); uint8_t count = 0; while ((void*)et < (void*)(p + limit) && ether_type != ETHERTYPE_IP && ether_type != ETHERTYPE_IPV6) { count++; et += VLANHDR_SIZE; ether_type = EXTRACT_16BITS(et); } return count; } void process(u_char *d, struct pcap_pkthdr *h, u_char *p) { uint8_t vlan_offset = include_vlan ? vlan_frame_count(p, h->caplen) * VLANHDR_SIZE : 0; struct ip *ip4_pkt = (struct ip *) (p + link_offset + vlan_offset); #if USE_IPv6 struct ip6_hdr *ip6_pkt = (struct ip6_hdr*)(p + link_offset + vlan_offset); #endif uint32_t ip_ver; uint8_t ip_proto = 0; uint32_t ip_hl = 0; uint32_t ip_off = 0; uint8_t fragmented = 0; uint16_t frag_offset = 0; uint32_t frag_id = 0; char ip_src[INET6_ADDRSTRLEN + 1], ip_dst[INET6_ADDRSTRLEN + 1]; unsigned char *data; uint32_t len = h->caplen - vlan_offset; seen_frames++; #if HAVE_DLT_IEEE802_11_RADIO if (radiotap_present) { uint16_t radio_len = ((struct NGREP_rtaphdr_t *)(p))->it_len; ip4_pkt = (struct ip *)(p + link_offset + radio_len); len -= radio_len; } #endif ip_ver = ip4_pkt->ip_v; switch (ip_ver) { case 4: { #if defined(AIX) #undef ip_hl ip_hl = ip4_pkt->ip_ff.ip_fhl * 4; #else ip_hl = ip4_pkt->ip_hl * 4; #endif ip_proto = ip4_pkt->ip_p; ip_off = ntohs(ip4_pkt->ip_off); fragmented = ip_off & (IP_MF | IP_OFFMASK); frag_offset = (fragmented) ? (ip_off & IP_OFFMASK) * 8 : 0; frag_id = ntohs(ip4_pkt->ip_id); inet_ntop(AF_INET, (const void *)&ip4_pkt->ip_src, ip_src, sizeof(ip_src)); inet_ntop(AF_INET, (const void *)&ip4_pkt->ip_dst, ip_dst, sizeof(ip_dst)); } break; #if USE_IPv6 case 6: { ip_hl = sizeof(struct ip6_hdr); ip_proto = ip6_pkt->ip6_nxt; if (ip_proto == IPPROTO_FRAGMENT) { struct ip6_frag *ip6_fraghdr; ip6_fraghdr = (struct ip6_frag *)((unsigned char *)(ip6_pkt) + ip_hl); ip_hl += sizeof(struct ip6_frag); ip_proto = ip6_fraghdr->ip6f_nxt; fragmented = 1; frag_offset = ntohs(ip6_fraghdr->ip6f_offlg & IP6F_OFF_MASK); frag_id = ntohl(ip6_fraghdr->ip6f_ident); } inet_ntop(AF_INET6, (const void *)&ip6_pkt->ip6_src, ip_src, sizeof(ip_src)); inet_ntop(AF_INET6, (const void *)&ip6_pkt->ip6_dst, ip_dst, sizeof(ip_dst)); } break; #endif } if (quiet < 1) { printf("#"); fflush(stdout); } switch (ip_proto) { case IPPROTO_TCP: { struct tcphdr *tcp_pkt = (struct tcphdr *)((unsigned char *)(ip4_pkt) + ip_hl); uint16_t tcphdr_offset = (frag_offset) ? 0 : (tcp_pkt->th_off * 4); data = (unsigned char *)(tcp_pkt) + tcphdr_offset; len -= link_offset + ip_hl + tcphdr_offset; if ((int32_t)len < 0) len = 0; dump_packet(h, p, ip_proto, data, len, ip_src, ip_dst, ntohs(tcp_pkt->th_sport), ntohs(tcp_pkt->th_dport), tcp_pkt->th_flags, tcphdr_offset, fragmented, frag_offset, frag_id); } break; case IPPROTO_UDP: { struct udphdr *udp_pkt = (struct udphdr *)((unsigned char *)(ip4_pkt) + ip_hl); uint16_t udphdr_offset = (frag_offset) ? 0 : sizeof(*udp_pkt); data = (unsigned char *)(udp_pkt) + udphdr_offset; len -= link_offset + ip_hl + udphdr_offset; if ((int32_t)len < 0) len = 0; dump_packet(h, p, ip_proto, data, len, ip_src, ip_dst, ntohs(udp_pkt->uh_sport), ntohs(udp_pkt->uh_dport), 0, udphdr_offset, fragmented, frag_offset, frag_id); } break; case IPPROTO_ICMP: { struct icmp *icmp4_pkt = (struct icmp *)((unsigned char *)(ip4_pkt) + ip_hl); uint16_t icmp4hdr_offset = (frag_offset) ? 0 : 4; data = (unsigned char *)(icmp4_pkt) + icmp4hdr_offset; len -= link_offset + ip_hl + icmp4hdr_offset; if ((int32_t)len < 0) len = 0; dump_packet(h, p, ip_proto, data, len, ip_src, ip_dst, icmp4_pkt->icmp_type, icmp4_pkt->icmp_code, 0, icmp4hdr_offset, fragmented, frag_offset, frag_id); } break; #if USE_IPv6 case IPPROTO_ICMPV6: { struct icmp6_hdr *icmp6_pkt = (struct icmp6_hdr *)((unsigned char *)(ip6_pkt) + ip_hl); uint16_t icmp6hdr_offset = (frag_offset) ? 0 : 4; data = (unsigned char *)(icmp6_pkt) + icmp6hdr_offset; len -= link_offset + ip_hl + icmp6hdr_offset; if ((int32_t)len < 0) len = 0; dump_packet(h, p, ip_proto, data, len, ip_src, ip_dst, icmp6_pkt->icmp6_type, icmp6_pkt->icmp6_code, 0, icmp6hdr_offset, fragmented, frag_offset, frag_id); } break; #endif case IPPROTO_IGMP: { struct igmp *igmp_pkt = (struct igmp *)((unsigned char *)(ip4_pkt) + ip_hl); uint16_t igmphdr_offset = (frag_offset) ? 0 : 4; data = (unsigned char *)(igmp_pkt) + igmphdr_offset; len -= link_offset + ip_hl + igmphdr_offset; if ((int32_t)len < 0) len = 0; dump_packet(h, p, ip_proto, data, len, ip_src, ip_dst, igmp_pkt->igmp_type, igmp_pkt->igmp_code, 0, igmphdr_offset, fragmented, frag_offset, frag_id); } break; default: { data = (unsigned char *)(ip4_pkt) + ip_hl; len -= link_offset + ip_hl; if ((int32_t)len < 0) len = 0; dump_packet(h, p, ip_proto, data, len, ip_src, ip_dst, 0, 0, 0, 0, fragmented, frag_offset, frag_id); } break; } if (max_matches && matches >= max_matches) clean_exit(0); if (match_after && keep_matching) keep_matching--; } void dump_packet(struct pcap_pkthdr *h, u_char *p, uint8_t proto, unsigned char *data, uint32_t len, const char *ip_src, const char *ip_dst, uint16_t sport, uint16_t dport, uint8_t flags, uint16_t hdr_offset, uint8_t frag, uint16_t frag_offset, uint32_t frag_id) { uint16_t match_size, match_index; if (!show_empty && len == 0) return; if (len > limitlen) len = limitlen; if ((len > 0 && match_func(data, len, &match_index, &match_size) == invert_match) && !keep_matching) return; if (!live_read && want_delay) dump_delay(h); { char ident; switch (proto) { case IPPROTO_TCP: ident = TCP; break; case IPPROTO_UDP: ident = UDP; break; case IPPROTO_ICMP: ident = ICMP; break; case IPPROTO_ICMPV6: ident = ICMPv6; break; case IPPROTO_IGMP: ident = IGMP; break; default: ident = UNKNOWN; break; } printf("\n%c", ident); } if (show_proto) printf("(%u)", proto); printf(" "); if (print_time) print_time(h); if ((proto == IPPROTO_TCP || proto == IPPROTO_UDP) && (sport || dport) && (hdr_offset || frag_offset == 0)) printf("%s:%u -> %s:%u", ip_src, sport, ip_dst, dport); else printf("%s -> %s", ip_src, ip_dst); if (proto == IPPROTO_TCP && flags) printf(" [%s%s%s%s%s%s%s%s]", (flags & TH_ACK) ? "A" : "", (flags & TH_SYN) ? "S" : "", (flags & TH_RST) ? "R" : "", (flags & TH_FIN) ? "F" : "", (flags & TH_URG) ? "U" : "", (flags & TH_PUSH)? "P" : "", (flags & TH_ECE) ? "E" : "", (flags & TH_CWR) ? "C" : ""); switch (proto) { case IPPROTO_ICMP: case IPPROTO_ICMPV6: case IPPROTO_IGMP: printf(" %u:%u", sport, dport); } if (frag) printf(" %s%u@%u:%u", frag_offset?"+":"", frag_id, frag_offset, len); if (dump_single) printf(" "); else printf(" #%u\n", seen_frames); if (quiet < 3) dump_func(data, len, match_index, match_size); if (pd_dump) pcap_dump((u_char*)pd_dump, h, p); #if USE_TCPKILL if (tcpkill_active) tcpkill_kill(h, p, link_offset, tcpkill_active); #endif } int8_t re_match_func(unsigned char *data, uint32_t len, uint16_t *mindex, uint16_t *msize) { #if USE_PCRE static int sub[2]; switch(pcre_exec(pattern, 0, (char const *)data, (int32_t)len, 0, 0, 0, 0)) { case PCRE_ERROR_NULL: case PCRE_ERROR_BADOPTION: case PCRE_ERROR_BADMAGIC: case PCRE_ERROR_UNKNOWN_NODE: case PCRE_ERROR_NOMEMORY: perror("she's dead, jim\n"); clean_exit(2); case PCRE_ERROR_NOMATCH: return 0; default: *mindex = sub[0]; *msize = sub[1] - sub[0]; } #else static struct re_registers regs; switch (re_search(&pattern, (char const *)data, (int32_t)len, 0, len, ®s)) { case -2: perror("she's dead, jim\n"); clean_exit(2); case -1: return 0; default: *mindex = regs.start[0]; *msize = regs.end[0] - regs.start[0]; } #endif matches++; if (match_after && keep_matching != match_after) keep_matching = match_after; return 1; } int8_t bin_match_func(unsigned char *data, uint32_t len, uint16_t *mindex, uint16_t *msize) { int32_t stop = len - match_len; int32_t i = 0; if (stop < 0) return 0; while (i <= stop) if (!memcmp(data+(i++), bin_data, match_len)) { matches++; if (match_after && keep_matching != match_after) keep_matching = match_after; *mindex = i - 1; *msize = match_len; return 1; } return 0; } int8_t blank_match_func(unsigned char *data, uint32_t len, uint16_t *mindex, uint16_t *msize) { matches++; *mindex = 0; *msize = 0; return 1; } void dump_byline(unsigned char *data, uint32_t len, uint16_t mindex, uint16_t msize) { if (len > 0) { const unsigned char *s = data; uint8_t should_hilite = (msize && enable_hilite); unsigned char *hilite_start = data + mindex; unsigned char *hilite_end = hilite_start + msize; while (s < data + len) { if (should_hilite && s == hilite_start) printf("%s", ANSI_hilite); printf("%c", (*s == '\n' || isprint(*s)) ? *s : nonprint_char); s++; if (should_hilite && s == hilite_end) printf("%s", ANSI_off); } printf("\n"); } } void dump_unwrapped(unsigned char *data, uint32_t len, uint16_t mindex, uint16_t msize) { if (len > 0) { const unsigned char *s = data; uint8_t should_hilite = (msize && enable_hilite); unsigned char *hilite_start = data + mindex; unsigned char *hilite_end = hilite_start + msize; while (s < data + len) { if (should_hilite && s == hilite_start) printf("%s", ANSI_hilite); printf("%c", isprint(*s) ? *s : nonprint_char); s++; if (should_hilite && s == hilite_end) printf("%s", ANSI_off); } printf("\n"); } } void dump_formatted(unsigned char *data, uint32_t len, uint16_t mindex, uint16_t msize) { if (len > 0) { uint8_t should_hilite = (msize && enable_hilite); unsigned char *str = data; uint8_t hiliting = 0; uint8_t width = show_hex ? 16 : (ws_col-5); uint32_t i = 0, j = 0; while (i < len) { printf(" "); if (show_hex) { for (j = 0; j < width; j++) { if (should_hilite && (mindex <= (i+j) && (i+j) < mindex + msize)) { hiliting = 1; printf("%s", ANSI_hilite); } if (i + j < len) printf("%02x ", str[j]); else printf(" "); if ((j+1) % (width/2) == 0) printf(" "); if (hiliting) { hiliting = 0; printf("%s", ANSI_off); } } } for (j = 0; j < width; j++) { if (should_hilite && mindex <= (i+j) && (i+j) < mindex + msize) { hiliting = 1; printf("%s", ANSI_hilite); } if (i + j < len) printf("%c", isprint(str[j]) ? str[j] : nonprint_char); else printf(" "); if (hiliting) { hiliting = 0; printf("%s", ANSI_off); } } str += width; i += j; printf("\n"); } } } char *get_filter_from_string(char *str) { const char *template = include_vlan ? BPF_TEMPLATE_USERSPEC_IP_VLAN : BPF_TEMPLATE_USERSPEC_IP; char *mine, *s; uint32_t len; if (!str || !*str) return NULL; len = (uint32_t)strlen(str); for (s = str; *s; s++) if (*s == '\r' || *s == '\n') *s = ' '; if (!(mine = (char*)malloc(len + strlen(template) + 1))) return NULL; memset(mine, 0, len + strlen(template) + 1); sprintf(mine, template, str); return mine; } char *get_filter_from_argv(char **argv) { const char *template = include_vlan ? BPF_TEMPLATE_USERSPEC_IP_VLAN : BPF_TEMPLATE_USERSPEC_IP; char **arg = argv, *theirs, *mine; char *from, *to; uint32_t len = 0; if (!*arg) return NULL; while (*arg) len += (uint32_t)strlen(*arg++) + 1; if (!(theirs = (char*)malloc(len + 1)) || !(mine = (char*)malloc(len + strlen(template) + 1))) return NULL; memset(theirs, 0, len + 1); memset(mine, 0, len + strlen(template) + 1); arg = argv; to = theirs; while ((from = *arg++)) { while ((*to++ = *from++)); *(to-1) = ' '; } sprintf(mine, template, theirs); free(theirs); return mine; } uint8_t strishex(char *str) { char *s; if ((s = strchr(str, 'x'))) s++; else s = str; while (*s) if (!isxdigit(*s++)) return 0; return 1; } void print_time_absolute(struct pcap_pkthdr *h) { struct tm *t = localtime((const time_t *)&h->ts.tv_sec); printf("%02u/%02u/%02u %02u:%02u:%02u.%06u ", t->tm_year+1900, t->tm_mon+1, t->tm_mday, t->tm_hour, t->tm_min, t->tm_sec, (uint32_t)h->ts.tv_usec); } void print_time_diff(struct pcap_pkthdr *h) { uint32_t secs, usecs; secs = h->ts.tv_sec - prev_ts.tv_sec; if (h->ts.tv_usec >= prev_ts.tv_usec) usecs = h->ts.tv_usec - prev_ts.tv_usec; else { secs--; usecs = 1000000 - (prev_ts.tv_usec - h->ts.tv_usec); } printf("+%u.%06u ", secs, usecs); prev_ts.tv_sec = h->ts.tv_sec; prev_ts.tv_usec = h->ts.tv_usec; } void print_time_offset(struct pcap_pkthdr *h) { uint32_t secs, usecs; secs = h->ts.tv_sec - prev_ts.tv_sec; if (h->ts.tv_usec >= prev_ts.tv_usec) usecs = h->ts.tv_usec - prev_ts.tv_usec; else { secs--; usecs = 1000000 - (prev_ts.tv_usec - h->ts.tv_usec); } if (prev_ts.tv_sec == 0 && prev_ts.tv_usec == 0) { prev_ts.tv_sec = h->ts.tv_sec; prev_ts.tv_usec = h->ts.tv_usec; secs = 0; usecs = 0; } printf("+%u.%06u ", secs, usecs); } void dump_delay_proc_init(struct pcap_pkthdr *h) { dump_delay = &dump_delay_proc; prev_delay_ts.tv_sec = h->ts.tv_sec; prev_delay_ts.tv_usec = h->ts.tv_usec; dump_delay(h); } void dump_delay_proc(struct pcap_pkthdr *h) { uint32_t secs, usecs; secs = h->ts.tv_sec - prev_delay_ts.tv_sec; if (h->ts.tv_usec >= prev_delay_ts.tv_usec) usecs = h->ts.tv_usec - prev_delay_ts.tv_usec; else { secs--; usecs = 1000000 - (prev_delay_ts.tv_usec - h->ts.tv_usec); } #ifdef _WIN32 { // grevious hack, yes, but windows sucks. sorry. :( --jordan if ((delay_socket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)) == -1) { perror("delay socket creation failed, disabling -D"); Sleep(3000); // give them time to read the message want_delay = 0; return; } FD_ZERO(&delay_fds); FD_SET(delay_socket, &delay_fds); delay_tv.tv_sec = secs; delay_tv.tv_usec = usecs; if (select(0, &delay_fds, 0, 0, &delay_tv) == -1) fprintf(stderr, "WSAGetLastError = %u\n", WSAGetLastError()); closesocket(delay_socket); delay_socket = 0; // in case someone ^C's out of me } #else sleep(secs); usleep(usecs); #endif prev_delay_ts.tv_sec = h->ts.tv_sec; prev_delay_ts.tv_usec = h->ts.tv_usec; } void update_windowsize(int32_t e) { if (e == 0 && ws_col_forced) ws_col = ws_col_forced; else if (!ws_col_forced) { #if !defined(_WIN32) const struct winsize ws; if (!ioctl(0, TIOCGWINSZ, &ws)) { ws_row = ws.ws_row; ws_col = ws.ws_col; } #else CONSOLE_SCREEN_BUFFER_INFO csbi; if (GetConsoleScreenBufferInfo(GetStdHandle(STD_OUTPUT_HANDLE), &csbi)) { ws_row = csbi.dwSize.Y; ws_col = csbi.dwSize.X; } #endif else { ws_row = 24; ws_col = 80; } } } #if !defined(_WIN32) && USE_DROPPRIVS void drop_privs(void) { struct passwd *pw; uid_t newuid; gid_t newgid; if ((getuid() || geteuid()) || dont_dropprivs) return; pw = getpwnam(DROPPRIVS_USER); if (!pw) { perror("attempt to drop privileges failed: getpwnam failed"); clean_exit(2); } newgid = pw->pw_gid; newuid = pw->pw_uid; if (getgroups(0, NULL) > 0) if (setgroups(1, &newgid) == -1) { perror("attempt to drop privileges failed"); clean_exit(2); } if (((getgid() != newgid) && (setgid(newgid) == -1)) || ((getegid() != newgid) && (setegid(newgid) == -1)) || ((getuid() != newuid) && (setuid(newuid) == -1)) || ((geteuid() != newuid) && (seteuid(newuid) == -1))) { perror("attempt to drop privileges failed"); clean_exit(2); } } #endif void usage(void) { printf("usage: ngrep <-" #if defined(_WIN32) "L" #endif "hNXViwqpevxlDtTRM> <-IO pcap_dump> <-n num> <-d dev> <-A num>\n" " <-s snaplen> <-S limitlen> <-W normal|byline|single|none> <-c cols>\n" " <-P char> <-F file>" #if USE_TCPKILL " <-K count>" #endif "\n" " \n" " -h is help/usage\n" " -V is version information\n" " -q is be quiet (don't print packet reception hash marks)\n" " -e is show empty packets\n" " -i is ignore case\n" " -v is invert match\n" " -R is don't do privilege revocation logic\n" " -x is print in alternate hexdump format\n" " -X is interpret match expression as hexadecimal\n" " -w is word-regex (expression must match as a word)\n" " -p is don't go into promiscuous mode\n" " -l is make stdout line buffered\n" " -D is replay pcap_dumps with their recorded time intervals\n" " -t is print timestamp every time a packet is matched\n" " -T is print delta timestamp every time a packet is matched\n" " specify twice for delta from first match\n" " -M is don't do multi-line match (do single-line match instead)\n" " -I is read packet stream from pcap format file pcap_dump\n" " -O is dump matched packets in pcap format to pcap_dump\n" " -n is look at only num packets\n" " -A is dump num packets after a match\n" " -s is set the bpf caplen\n" " -S is set the limitlen on matched packets\n" " -W is set the dump format (normal, byline, single, none)\n" " -c is force the column width to the specified size\n" " -P is set the non-printable display char to what is specified\n" " -F is read the bpf filter from the specified file\n" " -N is show sub protocol number\n" #if defined(_WIN32) " -d is use specified device (index) instead of the pcap default\n" " -L is show the winpcap device list index\n" #else " -d is use specified device instead of the pcap default\n" #endif #if USE_TCPKILL " -K is send N packets to kill observed connections\n" #endif ""); exit(2); } void version(void) { printf("ngrep: V%s, %s\n", VERSION, pcap_lib_version()); exit(0); } void clean_exit(int32_t sig) { struct pcap_stat s; signal(SIGINT, SIG_IGN); signal(SIGABRT, SIG_IGN); #if !defined(_WIN32) signal(SIGQUIT, SIG_IGN); signal(SIGPIPE, SIG_IGN); signal(SIGWINCH, SIG_IGN); #endif if (quiet < 1 && sig >= 0) printf("exit\n"); #if USE_PCRE if (pattern) pcre_free(pattern); if (pattern_extra) pcre_free(pattern_extra); #else if (pattern.translate) free(pattern.translate); if (pattern.fastmap) free(pattern.fastmap); #endif if (bin_data) free(bin_data); /* We used to report pcap_stats; but PCAP manpage says pcap_stats "may or may not" be accurate. So useless. :-( And confusing for a user to see counts not match what ngrep thinks. */ if (quiet < 1 && sig >= 0 && !read_file) printf("%u received, %u matched\n", seen_frames, matches); if (pd) pcap_close(pd); if (pd_dumppcap) pcap_close(pd_dumppcap); if (pd_dump) pcap_dump_close(pd_dump); #if defined(_WIN32) if (delay_socket) closesocket(delay_socket); if (want_delay) WSACleanup(); if (usedev) free(usedev); #endif exit(matches ? 0 : 1); } #if defined(_WIN32) int8_t win32_initwinsock(void) { WORD wVersionRequested = MAKEWORD(2, 0); WSADATA wsaData; if (WSAStartup(wVersionRequested, &wsaData)) { perror("unable to initialize winsock"); return 0; } // we want at least major version 2 if (LOBYTE(wsaData.wVersion) < 2) { fprintf(stderr, "unable to find winsock 2.0 or greater (found %u.%u)\n", LOBYTE(wsaData.wVersion), HIBYTE(wsaData.wVersion)); WSACleanup(); return 0; } return 1; } void win32_listdevices(void) { uint32_t i = 0; pcap_if_t *alldevs, *d; char errbuf[PCAP_ERRBUF_SIZE]; if (pcap_findalldevs(&alldevs, errbuf) == -1) { perror("unable to enumerate device list"); clean_exit(2); } printf("idx\tdev\n"); printf("---\t---\n"); for (d = alldevs; d != NULL; d = d->next) { printf("%2u:\t%s", ++i, d->name); if (d->description) printf(" (%s)\n", d->description); } pcap_freealldevs(alldevs); } char *win32_usedevice(const char *index) { int32_t idx = atoi(index), i = 0; pcap_if_t *alldevs, *d; char errbuf[PCAP_ERRBUF_SIZE]; char *dev = NULL; if (idx <= 0) { perror("invalid device index"); clean_exit(2); } if (pcap_findalldevs(&alldevs, errbuf) == -1) { perror("unable to enumerate devices"); clean_exit(2); } for (d = alldevs; d != NULL && i != idx; d = d->next) if (++i == idx) dev = _strdup(d->name); if (i <= 0) { perror("no known devices"); clean_exit(2); } if (i != idx) { perror("unknown device specified"); clean_exit(2); } pcap_freealldevs(alldevs); return dev; } char *win32_choosedevice(void) { pcap_if_t *alldevs, *d; char errbuf[PCAP_ERRBUF_SIZE]; char *dev = NULL; if (pcap_findalldevs(&alldevs, errbuf) == -1) { perror("unable to enumerate devices"); clean_exit(2); } for (d = alldevs; d != NULL; d = d->next) if ((d->addresses) && (d->addresses->addr)) dev = _strdup(d->name); pcap_freealldevs(alldevs); if (!dev) dev = pcap_lookupdev(errbuf); return dev; } #endif ngrep-1_47/Makefile.in0000644000175000017500000000571413154335003014246 0ustar romainromain# # Copyright (c) 2017 Jordan Ritter # # Please refer to the LICENSE file for more information. CC=@CC@ CPPFLAGS = @DEFS@ -D@OS@ @EXTRA_DEFINES@ @CPPFLAGS@ CFLAGS = @EXTRA_INCLUDES@ @CFLAGS@ LDFLAGS = @EXTRA_LDFLAGS@ @LDFLAGS@ LIBS = @LIBS@ @EXTRA_LIBS@ STRIPFLAG=@STRIPFLAG@ OBJS=ngrep.o @EXTRA_OBJS@ TARGET=ngrep MANPAGE=ngrep.8 prefix = @prefix@ exec_prefix = @exec_prefix@ bindir = $(prefix)/bin datadir = $(prefix)/share mandir = $(datadir)/man BINDIR_INSTALL = $(prefix)/bin MANDIR_INSTALL = $(mandir)/man8 INSTALL = ./install-sh REGEX_OBJS=@REGEX_OBJS@ REGEX_DIR=@REGEX_DIR@ all: $(TARGET) $(TARGET): $(REGEX_OBJS) $(OBJS) $(CC) $(STRIPFLAG) -o $(TARGET) $(OBJS) $(REGEX_OBJS) $(LDFLAGS) $(LIBS) debug: $(REGEX_OBJS) $(OBJS) $(CC) -g -o $(TARGET) $(OBJS) $(REGEX_OBJS) $(LDFLAGS) $(LIBS) static: $(REGEX_OBJS) $(OBJS) $(CC) $(STRIPFLAG) -static -o $(TARGET).static $(OBJS) $(REGEX_OBJS) $(LDFLAGS) $(LIBS) install: $(TARGET) $(INSTALL) -c -m 0755 $(TARGET) $(DESTDIR)/$(BINDIR_INSTALL)/$(TARGET) $(INSTALL) -c -m 0644 $(MANPAGE) $(DESTDIR)/$(MANDIR_INSTALL)/$(MANPAGE) .c.o: $(CC) $(CPPFLAGS) $(CFLAGS) -g -c $< clean: test -n "$(REGEX_DIR)" && $(MAKE) -C $(REGEX_DIR) clean || exit 0 rm -f *~ $(OBJS) $(REGEX_OBJS) $(TARGET) $(TARGET).static distclean: clean test -n "$(REGEX_DIR)" && $(MAKE) -C $(REGEX_DIR) distclean || exit 0 rm -f config.status config.cache config.log config.h Makefile $(REGEX_OBJS): $(REGEX_OBJS:.o=.c) $(REGEX_DIR)/*.h $(MAKE) $(MAKEFLAGS) -C $(REGEX_DIR) $(notdir $(REGEX_OBJS)) $(OBJS): Makefile $(OBJS:.o=.c) $(OBJS:.o=.h) tardist: @( VERSION=`perl -ne '/VERSION\s+"(.*)"/ && print "$$1\n"' ngrep.h` ; \ PKG="ngrep-$$VERSION" ; \ TMPDIR="/tmp" ; \ DESTDIR="$$TMPDIR/$$PKG" ; \ echo ; \ echo "Building package $$PKG ... " ; \ echo ; \ sleep 2 ; \ rm -rf $$DESTDIR && mkdir $$DESTDIR && \ make distclean && \ tar --exclude "CVS" -cf - . | tar xf - -C $$DESTDIR && \ find $$DESTDIR -name "*~" -o -name ".*#*" | xargs rm -f && \ cd $$TMPDIR && tar zcf $$PKG.tar.gz $$PKG ; \ rm -rf $$DESTDIR ; \ cd $$TMPDIR && gpg -ba $$PKG.tar.gz ; \ echo ; \ ls -l $$TMPDIR/$$PKG.tar.gz $$TMPDIR/$$PKG.tar.gz.asc ; \ echo ; \ ) ngrep-1_47/tcpkill.h0000644000175000017500000000026413154335003014007 0ustar romainromain#ifndef TCPKILL_H #define TCPKILL_H void tcpkill_init(void); void tcpkill_kill(const struct pcap_pkthdr *pcap, const u_char *pkt, uint32_t pcap_off, uint32_t kill_count); #endif ngrep-1_47/config.sub0000644000175000017500000012764513154335003014171 0ustar romainromain#! /bin/sh if [ -x /usr/share/misc/config.sub ]; then exec /usr/share/misc/config.sub "$@" fi # Configuration validation subroutine script. # Copyright 1992-2017 Free Software Foundation, Inc. timestamp='2017-04-02' # This file 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 . # # As a special exception to the GNU General Public License, if you # distribute this file as part of a program that contains a # configuration script generated by Autoconf, you may include it under # the same distribution terms that you use for the rest of that # program. This Exception is an additional permission under section 7 # of the GNU General Public License, version 3 ("GPLv3"). # Please send patches to . # # Configuration subroutine to validate and canonicalize a configuration type. # Supply the specified configuration type as an argument. # If it is invalid, we print an error message on stderr and exit with code 1. # Otherwise, we print the canonical config type on stdout and succeed. # You can get the latest version of this script from: # http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub # This file is supposed to be the same for all GNU packages # and recognize all the CPU types, system types and aliases # that are meaningful with *any* GNU software. # Each package is responsible for reporting which valid configurations # it does not support. The user should be able to distinguish # a failure to support a valid configuration from a meaningless # configuration. # The goal of this file is to map all the various variations of a given # machine specification into a single specification in the form: # CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM # or in some cases, the newer four-part form: # CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM # It is wrong to echo any other type of specification. me=`echo "$0" | sed -e 's,.*/,,'` usage="\ Usage: $0 [OPTION] CPU-MFR-OPSYS or ALIAS Canonicalize a configuration name. Operation modes: -h, --help print this help, then exit -t, --time-stamp print date of last modification, then exit -v, --version print version number, then exit Report bugs and patches to ." version="\ GNU config.sub ($timestamp) Copyright 1992-2017 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE." help=" Try \`$me --help' for more information." # Parse command line while test $# -gt 0 ; do case $1 in --time-stamp | --time* | -t ) echo "$timestamp" ; exit ;; --version | -v ) echo "$version" ; exit ;; --help | --h* | -h ) echo "$usage"; exit ;; -- ) # Stop option processing shift; break ;; - ) # Use stdin as input. break ;; -* ) echo "$me: invalid option $1$help" exit 1 ;; *local*) # First pass through any local machine types. echo $1 exit ;; * ) break ;; esac done case $# in 0) echo "$me: missing argument$help" >&2 exit 1;; 1) ;; *) echo "$me: too many arguments$help" >&2 exit 1;; esac # Separate what the user gave into CPU-COMPANY and OS or KERNEL-OS (if any). # Here we must recognize all the valid KERNEL-OS combinations. maybe_os=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\2/'` case $maybe_os in nto-qnx* | linux-gnu* | linux-android* | linux-dietlibc | linux-newlib* | \ linux-musl* | linux-uclibc* | uclinux-uclibc* | uclinux-gnu* | kfreebsd*-gnu* | \ knetbsd*-gnu* | netbsd*-gnu* | netbsd*-eabi* | \ kopensolaris*-gnu* | cloudabi*-eabi* | \ storm-chaos* | os2-emx* | rtmk-nova*) os=-$maybe_os basic_machine=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\1/'` ;; android-linux) os=-linux-android basic_machine=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\1/'`-unknown ;; *) basic_machine=`echo $1 | sed 's/-[^-]*$//'` if [ $basic_machine != $1 ] then os=`echo $1 | sed 's/.*-/-/'` else os=; fi ;; esac ### Let's recognize common machines as not being operating systems so ### that things like config.sub decstation-3100 work. We also ### recognize some manufacturers as not being operating systems, so we ### can provide default operating systems below. case $os in -sun*os*) # Prevent following clause from handling this invalid input. ;; -dec* | -mips* | -sequent* | -encore* | -pc532* | -sgi* | -sony* | \ -att* | -7300* | -3300* | -delta* | -motorola* | -sun[234]* | \ -unicom* | -ibm* | -next | -hp | -isi* | -apollo | -altos* | \ -convergent* | -ncr* | -news | -32* | -3600* | -3100* | -hitachi* |\ -c[123]* | -convex* | -sun | -crds | -omron* | -dg | -ultra | -tti* | \ -harris | -dolphin | -highlevel | -gould | -cbm | -ns | -masscomp | \ -apple | -axis | -knuth | -cray | -microblaze*) os= basic_machine=$1 ;; -bluegene*) os=-cnk ;; -sim | -cisco | -oki | -wec | -winbond) os= basic_machine=$1 ;; -scout) ;; -wrs) os=-vxworks basic_machine=$1 ;; -chorusos*) os=-chorusos basic_machine=$1 ;; -chorusrdb) os=-chorusrdb basic_machine=$1 ;; -hiux*) os=-hiuxwe2 ;; -sco6) os=-sco5v6 basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` ;; -sco5) os=-sco3.2v5 basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` ;; -sco4) os=-sco3.2v4 basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` ;; -sco3.2.[4-9]*) os=`echo $os | sed -e 's/sco3.2./sco3.2v/'` basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` ;; -sco3.2v[4-9]*) # Don't forget version if it is 3.2v4 or newer. basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` ;; -sco5v6*) # Don't forget version if it is 3.2v4 or newer. basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` ;; -sco*) os=-sco3.2v2 basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` ;; -udk*) basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` ;; -isc) os=-isc2.2 basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` ;; -clix*) basic_machine=clipper-intergraph ;; -isc*) basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` ;; -lynx*178) os=-lynxos178 ;; -lynx*5) os=-lynxos5 ;; -lynx*) os=-lynxos ;; -ptx*) basic_machine=`echo $1 | sed -e 's/86-.*/86-sequent/'` ;; -windowsnt*) os=`echo $os | sed -e 's/windowsnt/winnt/'` ;; -psos*) os=-psos ;; -mint | -mint[0-9]*) basic_machine=m68k-atari os=-mint ;; esac # Decode aliases for certain CPU-COMPANY combinations. case $basic_machine in # Recognize the basic CPU types without company name. # Some are omitted here because they have special meanings below. 1750a | 580 \ | a29k \ | aarch64 | aarch64_be \ | alpha | alphaev[4-8] | alphaev56 | alphaev6[78] | alphapca5[67] \ | alpha64 | alpha64ev[4-8] | alpha64ev56 | alpha64ev6[78] | alpha64pca5[67] \ | am33_2.0 \ | arc | arceb \ | arm | arm[bl]e | arme[lb] | armv[2-8] | armv[3-8][lb] | armv7[arm] \ | avr | avr32 \ | ba \ | be32 | be64 \ | bfin \ | c4x | c8051 | clipper \ | d10v | d30v | dlx | dsp16xx \ | e2k | epiphany \ | fido | fr30 | frv | ft32 \ | h8300 | h8500 | hppa | hppa1.[01] | hppa2.0 | hppa2.0[nw] | hppa64 \ | hexagon \ | i370 | i860 | i960 | ia16 | ia64 \ | ip2k | iq2000 \ | k1om \ | le32 | le64 \ | lm32 \ | m32c | m32r | m32rle | m68000 | m68k | m88k \ | maxq | mb | microblaze | microblazeel | mcore | mep | metag \ | mips | mipsbe | mipseb | mipsel | mipsle \ | mips16 \ | mips64 | mips64el \ | mips64octeon | mips64octeonel \ | mips64orion | mips64orionel \ | mips64r5900 | mips64r5900el \ | mips64vr | mips64vrel \ | mips64vr4100 | mips64vr4100el \ | mips64vr4300 | mips64vr4300el \ | mips64vr5000 | mips64vr5000el \ | mips64vr5900 | mips64vr5900el \ | mipsisa32 | mipsisa32el \ | mipsisa32r2 | mipsisa32r2el \ | mipsisa32r6 | mipsisa32r6el \ | mipsisa64 | mipsisa64el \ | mipsisa64r2 | mipsisa64r2el \ | mipsisa64r6 | mipsisa64r6el \ | mipsisa64sb1 | mipsisa64sb1el \ | mipsisa64sr71k | mipsisa64sr71kel \ | mipsr5900 | mipsr5900el \ | mipstx39 | mipstx39el \ | mn10200 | mn10300 \ | moxie \ | mt \ | msp430 \ | nds32 | nds32le | nds32be \ | nios | nios2 | nios2eb | nios2el \ | ns16k | ns32k \ | open8 | or1k | or1knd | or32 \ | pdp10 | pdp11 | pj | pjl \ | powerpc | powerpc64 | powerpc64le | powerpcle \ | pru \ | pyramid \ | riscv32 | riscv64 \ | rl78 | rx \ | score \ | sh | sh[1234] | sh[24]a | sh[24]aeb | sh[23]e | sh[234]eb | sheb | shbe | shle | sh[1234]le | sh3ele \ | sh64 | sh64le \ | sparc | sparc64 | sparc64b | sparc64v | sparc86x | sparclet | sparclite \ | sparcv8 | sparcv9 | sparcv9b | sparcv9v \ | spu \ | tahoe | tic4x | tic54x | tic55x | tic6x | tic80 | tron \ | ubicom32 \ | v850 | v850e | v850e1 | v850e2 | v850es | v850e2v3 \ | visium \ | wasm32 \ | we32k \ | x86 | xc16x | xstormy16 | xtensa \ | z8k | z80) basic_machine=$basic_machine-unknown ;; c54x) basic_machine=tic54x-unknown ;; c55x) basic_machine=tic55x-unknown ;; c6x) basic_machine=tic6x-unknown ;; leon|leon[3-9]) basic_machine=sparc-$basic_machine ;; m6811 | m68hc11 | m6812 | m68hc12 | m68hcs12x | nvptx | picochip) basic_machine=$basic_machine-unknown os=-none ;; m88110 | m680[12346]0 | m683?2 | m68360 | m5200 | v70 | w65 | z8k) ;; ms1) basic_machine=mt-unknown ;; strongarm | thumb | xscale) basic_machine=arm-unknown ;; xgate) basic_machine=$basic_machine-unknown os=-none ;; xscaleeb) basic_machine=armeb-unknown ;; xscaleel) basic_machine=armel-unknown ;; # We use `pc' rather than `unknown' # because (1) that's what they normally are, and # (2) the word "unknown" tends to confuse beginning users. i*86 | x86_64) basic_machine=$basic_machine-pc ;; # Object if more than one company name word. *-*-*) echo Invalid configuration \`$1\': machine \`$basic_machine\' not recognized 1>&2 exit 1 ;; # Recognize the basic CPU types with company name. 580-* \ | a29k-* \ | aarch64-* | aarch64_be-* \ | alpha-* | alphaev[4-8]-* | alphaev56-* | alphaev6[78]-* \ | alpha64-* | alpha64ev[4-8]-* | alpha64ev56-* | alpha64ev6[78]-* \ | alphapca5[67]-* | alpha64pca5[67]-* | arc-* | arceb-* \ | arm-* | armbe-* | armle-* | armeb-* | armv*-* \ | avr-* | avr32-* \ | ba-* \ | be32-* | be64-* \ | bfin-* | bs2000-* \ | c[123]* | c30-* | [cjt]90-* | c4x-* \ | c8051-* | clipper-* | craynv-* | cydra-* \ | d10v-* | d30v-* | dlx-* \ | e2k-* | elxsi-* \ | f30[01]-* | f700-* | fido-* | fr30-* | frv-* | fx80-* \ | h8300-* | h8500-* \ | hppa-* | hppa1.[01]-* | hppa2.0-* | hppa2.0[nw]-* | hppa64-* \ | hexagon-* \ | i*86-* | i860-* | i960-* | ia16-* | ia64-* \ | ip2k-* | iq2000-* \ | k1om-* \ | le32-* | le64-* \ | lm32-* \ | m32c-* | m32r-* | m32rle-* \ | m68000-* | m680[012346]0-* | m68360-* | m683?2-* | m68k-* \ | m88110-* | m88k-* | maxq-* | mcore-* | metag-* \ | microblaze-* | microblazeel-* \ | mips-* | mipsbe-* | mipseb-* | mipsel-* | mipsle-* \ | mips16-* \ | mips64-* | mips64el-* \ | mips64octeon-* | mips64octeonel-* \ | mips64orion-* | mips64orionel-* \ | mips64r5900-* | mips64r5900el-* \ | mips64vr-* | mips64vrel-* \ | mips64vr4100-* | mips64vr4100el-* \ | mips64vr4300-* | mips64vr4300el-* \ | mips64vr5000-* | mips64vr5000el-* \ | mips64vr5900-* | mips64vr5900el-* \ | mipsisa32-* | mipsisa32el-* \ | mipsisa32r2-* | mipsisa32r2el-* \ | mipsisa32r6-* | mipsisa32r6el-* \ | mipsisa64-* | mipsisa64el-* \ | mipsisa64r2-* | mipsisa64r2el-* \ | mipsisa64r6-* | mipsisa64r6el-* \ | mipsisa64sb1-* | mipsisa64sb1el-* \ | mipsisa64sr71k-* | mipsisa64sr71kel-* \ | mipsr5900-* | mipsr5900el-* \ | mipstx39-* | mipstx39el-* \ | mmix-* \ | mt-* \ | msp430-* \ | nds32-* | nds32le-* | nds32be-* \ | nios-* | nios2-* | nios2eb-* | nios2el-* \ | none-* | np1-* | ns16k-* | ns32k-* \ | open8-* \ | or1k*-* \ | orion-* \ | pdp10-* | pdp11-* | pj-* | pjl-* | pn-* | power-* \ | powerpc-* | powerpc64-* | powerpc64le-* | powerpcle-* \ | pru-* \ | pyramid-* \ | riscv32-* | riscv64-* \ | rl78-* | romp-* | rs6000-* | rx-* \ | sh-* | sh[1234]-* | sh[24]a-* | sh[24]aeb-* | sh[23]e-* | sh[34]eb-* | sheb-* | shbe-* \ | shle-* | sh[1234]le-* | sh3ele-* | sh64-* | sh64le-* \ | sparc-* | sparc64-* | sparc64b-* | sparc64v-* | sparc86x-* | sparclet-* \ | sparclite-* \ | sparcv8-* | sparcv9-* | sparcv9b-* | sparcv9v-* | sv1-* | sx*-* \ | tahoe-* \ | tic30-* | tic4x-* | tic54x-* | tic55x-* | tic6x-* | tic80-* \ | tile*-* \ | tron-* \ | ubicom32-* \ | v850-* | v850e-* | v850e1-* | v850es-* | v850e2-* | v850e2v3-* \ | vax-* \ | visium-* \ | wasm32-* \ | we32k-* \ | x86-* | x86_64-* | xc16x-* | xps100-* \ | xstormy16-* | xtensa*-* \ | ymp-* \ | z8k-* | z80-*) ;; # Recognize the basic CPU types without company name, with glob match. xtensa*) basic_machine=$basic_machine-unknown ;; # Recognize the various machine names and aliases which stand # for a CPU type and a company and sometimes even an OS. 386bsd) basic_machine=i386-unknown os=-bsd ;; 3b1 | 7300 | 7300-att | att-7300 | pc7300 | safari | unixpc) basic_machine=m68000-att ;; 3b*) basic_machine=we32k-att ;; a29khif) basic_machine=a29k-amd os=-udi ;; abacus) basic_machine=abacus-unknown ;; adobe68k) basic_machine=m68010-adobe os=-scout ;; alliant | fx80) basic_machine=fx80-alliant ;; altos | altos3068) basic_machine=m68k-altos ;; am29k) basic_machine=a29k-none os=-bsd ;; amd64) basic_machine=x86_64-pc ;; amd64-*) basic_machine=x86_64-`echo $basic_machine | sed 's/^[^-]*-//'` ;; amdahl) basic_machine=580-amdahl os=-sysv ;; amiga | amiga-*) basic_machine=m68k-unknown ;; amigaos | amigados) basic_machine=m68k-unknown os=-amigaos ;; amigaunix | amix) basic_machine=m68k-unknown os=-sysv4 ;; apollo68) basic_machine=m68k-apollo os=-sysv ;; apollo68bsd) basic_machine=m68k-apollo os=-bsd ;; aros) basic_machine=i386-pc os=-aros ;; asmjs) basic_machine=asmjs-unknown ;; aux) basic_machine=m68k-apple os=-aux ;; balance) basic_machine=ns32k-sequent os=-dynix ;; blackfin) basic_machine=bfin-unknown os=-linux ;; blackfin-*) basic_machine=bfin-`echo $basic_machine | sed 's/^[^-]*-//'` os=-linux ;; bluegene*) basic_machine=powerpc-ibm os=-cnk ;; c54x-*) basic_machine=tic54x-`echo $basic_machine | sed 's/^[^-]*-//'` ;; c55x-*) basic_machine=tic55x-`echo $basic_machine | sed 's/^[^-]*-//'` ;; c6x-*) basic_machine=tic6x-`echo $basic_machine | sed 's/^[^-]*-//'` ;; c90) basic_machine=c90-cray os=-unicos ;; cegcc) basic_machine=arm-unknown os=-cegcc ;; convex-c1) basic_machine=c1-convex os=-bsd ;; convex-c2) basic_machine=c2-convex os=-bsd ;; convex-c32) basic_machine=c32-convex os=-bsd ;; convex-c34) basic_machine=c34-convex os=-bsd ;; convex-c38) basic_machine=c38-convex os=-bsd ;; cray | j90) basic_machine=j90-cray os=-unicos ;; craynv) basic_machine=craynv-cray os=-unicosmp ;; cr16 | cr16-*) basic_machine=cr16-unknown os=-elf ;; crds | unos) basic_machine=m68k-crds ;; crisv32 | crisv32-* | etraxfs*) basic_machine=crisv32-axis ;; cris | cris-* | etrax*) basic_machine=cris-axis ;; crx) basic_machine=crx-unknown os=-elf ;; da30 | da30-*) basic_machine=m68k-da30 ;; decstation | decstation-3100 | pmax | pmax-* | pmin | dec3100 | decstatn) basic_machine=mips-dec ;; decsystem10* | dec10*) basic_machine=pdp10-dec os=-tops10 ;; decsystem20* | dec20*) basic_machine=pdp10-dec os=-tops20 ;; delta | 3300 | motorola-3300 | motorola-delta \ | 3300-motorola | delta-motorola) basic_machine=m68k-motorola ;; delta88) basic_machine=m88k-motorola os=-sysv3 ;; dicos) basic_machine=i686-pc os=-dicos ;; djgpp) basic_machine=i586-pc os=-msdosdjgpp ;; dpx20 | dpx20-*) basic_machine=rs6000-bull os=-bosx ;; dpx2* | dpx2*-bull) basic_machine=m68k-bull os=-sysv3 ;; e500v[12]) basic_machine=powerpc-unknown os=$os"spe" ;; e500v[12]-*) basic_machine=powerpc-`echo $basic_machine | sed 's/^[^-]*-//'` os=$os"spe" ;; 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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 . # # As a special exception to the GNU General Public License, if you # distribute this file as part of a program that contains a # configuration script generated by Autoconf, you may include it under # the same distribution terms that you use for the rest of that # program. This Exception is an additional permission under section 7 # of the GNU General Public License, version 3 ("GPLv3"). # # Originally written by Per Bothner; maintained since 2000 by Ben Elliston. # # You can get the latest version of this script from: # http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess # # Please send patches to . me=`echo "$0" | sed -e 's,.*/,,'` usage="\ Usage: $0 [OPTION] Output the configuration name of the system \`$me' is run on. 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The system name ranges from "MiNT" over "FreeMiNT" # to the lowercase version "mint" (or "freemint"). Finally # the system name "TOS" denotes a system which is actually not # MiNT. But MiNT is downward compatible to TOS, so this should # be no problem. atarist[e]:*MiNT:*:* | atarist[e]:*mint:*:* | atarist[e]:*TOS:*:*) echo m68k-atari-mint${UNAME_RELEASE} exit ;; atari*:*MiNT:*:* | atari*:*mint:*:* | atarist[e]:*TOS:*:*) echo m68k-atari-mint${UNAME_RELEASE} exit ;; *falcon*:*MiNT:*:* | *falcon*:*mint:*:* | *falcon*:*TOS:*:*) echo m68k-atari-mint${UNAME_RELEASE} exit ;; milan*:*MiNT:*:* | milan*:*mint:*:* | *milan*:*TOS:*:*) echo m68k-milan-mint${UNAME_RELEASE} exit ;; hades*:*MiNT:*:* | hades*:*mint:*:* | *hades*:*TOS:*:*) echo m68k-hades-mint${UNAME_RELEASE} exit ;; *:*MiNT:*:* | *:*mint:*:* | *:*TOS:*:*) echo m68k-unknown-mint${UNAME_RELEASE} exit ;; m68k:machten:*:*) echo m68k-apple-machten${UNAME_RELEASE} exit ;; powerpc:machten:*:*) echo powerpc-apple-machten${UNAME_RELEASE} exit ;; RISC*:Mach:*:*) echo mips-dec-mach_bsd4.3 exit ;; RISC*:ULTRIX:*:*) echo mips-dec-ultrix${UNAME_RELEASE} exit ;; VAX*:ULTRIX*:*:*) echo vax-dec-ultrix${UNAME_RELEASE} exit ;; 2020:CLIX:*:* | 2430:CLIX:*:*) echo clipper-intergraph-clix${UNAME_RELEASE} exit ;; mips:*:*:UMIPS | mips:*:*:RISCos) eval $set_cc_for_build sed 's/^ //' << EOF >$dummy.c #ifdef __cplusplus #include /* for printf() prototype */ int main (int argc, char *argv[]) { #else int main (argc, argv) int argc; char *argv[]; { #endif #if defined (host_mips) && defined (MIPSEB) #if defined (SYSTYPE_SYSV) printf ("mips-mips-riscos%ssysv\n", argv[1]); exit (0); #endif #if defined (SYSTYPE_SVR4) printf ("mips-mips-riscos%ssvr4\n", argv[1]); exit (0); #endif #if defined (SYSTYPE_BSD43) || defined(SYSTYPE_BSD) printf ("mips-mips-riscos%sbsd\n", argv[1]); exit (0); #endif #endif exit (-1); } EOF $CC_FOR_BUILD -o $dummy $dummy.c && dummyarg=`echo "${UNAME_RELEASE}" | sed -n 's/\([0-9]*\).*/\1/p'` && SYSTEM_NAME=`$dummy $dummyarg` && { echo "$SYSTEM_NAME"; exit; } echo mips-mips-riscos${UNAME_RELEASE} exit ;; Motorola:PowerMAX_OS:*:*) echo powerpc-motorola-powermax exit ;; Motorola:*:4.3:PL8-*) echo powerpc-harris-powermax exit ;; Night_Hawk:*:*:PowerMAX_OS | Synergy:PowerMAX_OS:*:*) echo powerpc-harris-powermax exit ;; Night_Hawk:Power_UNIX:*:*) echo powerpc-harris-powerunix exit ;; m88k:CX/UX:7*:*) echo m88k-harris-cxux7 exit ;; m88k:*:4*:R4*) echo m88k-motorola-sysv4 exit ;; m88k:*:3*:R3*) echo m88k-motorola-sysv3 exit ;; AViiON:dgux:*:*) # DG/UX returns AViiON for all architectures UNAME_PROCESSOR=`/usr/bin/uname -p` if [ $UNAME_PROCESSOR = mc88100 ] || [ $UNAME_PROCESSOR = mc88110 ] then if [ ${TARGET_BINARY_INTERFACE}x = m88kdguxelfx ] || \ [ ${TARGET_BINARY_INTERFACE}x = x ] then echo m88k-dg-dgux${UNAME_RELEASE} else echo m88k-dg-dguxbcs${UNAME_RELEASE} fi else echo i586-dg-dgux${UNAME_RELEASE} fi exit ;; M88*:DolphinOS:*:*) # DolphinOS (SVR3) echo m88k-dolphin-sysv3 exit ;; M88*:*:R3*:*) # Delta 88k system running SVR3 echo m88k-motorola-sysv3 exit ;; XD88*:*:*:*) # Tektronix XD88 system running UTekV (SVR3) echo m88k-tektronix-sysv3 exit ;; Tek43[0-9][0-9]:UTek:*:*) # Tektronix 4300 system running UTek (BSD) echo m68k-tektronix-bsd exit ;; *:IRIX*:*:*) echo mips-sgi-irix`echo ${UNAME_RELEASE}|sed -e 's/-/_/g'` exit ;; ????????:AIX?:[12].1:2) # AIX 2.2.1 or AIX 2.1.1 is RT/PC AIX. echo romp-ibm-aix # uname -m gives an 8 hex-code CPU id exit ;; # Note that: echo "'`uname -s`'" gives 'AIX ' i*86:AIX:*:*) echo i386-ibm-aix exit ;; ia64:AIX:*:*) if [ -x /usr/bin/oslevel ] ; then IBM_REV=`/usr/bin/oslevel` else IBM_REV=${UNAME_VERSION}.${UNAME_RELEASE} fi echo ${UNAME_MACHINE}-ibm-aix${IBM_REV} exit ;; *:AIX:2:3) if grep bos325 /usr/include/stdio.h >/dev/null 2>&1; then eval $set_cc_for_build sed 's/^ //' << EOF >$dummy.c #include main() { if (!__power_pc()) exit(1); puts("powerpc-ibm-aix3.2.5"); exit(0); } EOF if $CC_FOR_BUILD -o $dummy $dummy.c && SYSTEM_NAME=`$dummy` then echo "$SYSTEM_NAME" else echo rs6000-ibm-aix3.2.5 fi elif grep bos324 /usr/include/stdio.h >/dev/null 2>&1; then echo rs6000-ibm-aix3.2.4 else echo rs6000-ibm-aix3.2 fi exit ;; *:AIX:*:[4567]) IBM_CPU_ID=`/usr/sbin/lsdev -C -c processor -S available | sed 1q | awk '{ print $1 }'` if /usr/sbin/lsattr -El ${IBM_CPU_ID} | grep ' POWER' >/dev/null 2>&1; then IBM_ARCH=rs6000 else IBM_ARCH=powerpc fi if [ -x /usr/bin/lslpp ] ; then IBM_REV=`/usr/bin/lslpp -Lqc bos.rte.libc | awk -F: '{ print $3 }' | sed s/[0-9]*$/0/` else IBM_REV=${UNAME_VERSION}.${UNAME_RELEASE} fi echo ${IBM_ARCH}-ibm-aix${IBM_REV} exit ;; *:AIX:*:*) echo rs6000-ibm-aix exit ;; ibmrt:4.4BSD:*|romp-ibm:BSD:*) echo romp-ibm-bsd4.4 exit ;; ibmrt:*BSD:*|romp-ibm:BSD:*) # covers RT/PC BSD and echo romp-ibm-bsd${UNAME_RELEASE} # 4.3 with uname added to exit ;; # report: romp-ibm BSD 4.3 *:BOSX:*:*) echo rs6000-bull-bosx exit ;; DPX/2?00:B.O.S.:*:*) echo m68k-bull-sysv3 exit ;; 9000/[34]??:4.3bsd:1.*:*) echo m68k-hp-bsd exit ;; hp300:4.4BSD:*:* | 9000/[34]??:4.3bsd:2.*:*) echo m68k-hp-bsd4.4 exit ;; 9000/[34678]??:HP-UX:*:*) HPUX_REV=`echo ${UNAME_RELEASE}|sed -e 's/[^.]*.[0B]*//'` case "${UNAME_MACHINE}" in 9000/31? ) HP_ARCH=m68000 ;; 9000/[34]?? ) HP_ARCH=m68k ;; 9000/[678][0-9][0-9]) if [ -x /usr/bin/getconf ]; then sc_cpu_version=`/usr/bin/getconf SC_CPU_VERSION 2>/dev/null` sc_kernel_bits=`/usr/bin/getconf SC_KERNEL_BITS 2>/dev/null` case "${sc_cpu_version}" in 523) HP_ARCH=hppa1.0 ;; # CPU_PA_RISC1_0 528) HP_ARCH=hppa1.1 ;; # CPU_PA_RISC1_1 532) # CPU_PA_RISC2_0 case "${sc_kernel_bits}" in 32) HP_ARCH=hppa2.0n ;; 64) HP_ARCH=hppa2.0w ;; '') HP_ARCH=hppa2.0 ;; # HP-UX 10.20 esac ;; esac fi if [ "${HP_ARCH}" = "" ]; then eval $set_cc_for_build sed 's/^ //' << EOF >$dummy.c #define _HPUX_SOURCE #include #include int main () { #if defined(_SC_KERNEL_BITS) long bits = sysconf(_SC_KERNEL_BITS); #endif long cpu = sysconf (_SC_CPU_VERSION); switch (cpu) { case CPU_PA_RISC1_0: puts ("hppa1.0"); break; case CPU_PA_RISC1_1: puts ("hppa1.1"); break; case CPU_PA_RISC2_0: #if defined(_SC_KERNEL_BITS) switch (bits) { case 64: puts ("hppa2.0w"); break; case 32: puts ("hppa2.0n"); break; default: puts ("hppa2.0"); break; } break; #else /* !defined(_SC_KERNEL_BITS) */ puts ("hppa2.0"); break; #endif default: puts ("hppa1.0"); break; } exit (0); } EOF (CCOPTS="" $CC_FOR_BUILD -o $dummy $dummy.c 2>/dev/null) && HP_ARCH=`$dummy` test -z "$HP_ARCH" && HP_ARCH=hppa fi ;; esac if [ ${HP_ARCH} = hppa2.0w ] then eval $set_cc_for_build # hppa2.0w-hp-hpux* has a 64-bit kernel and a compiler generating # 32-bit code. hppa64-hp-hpux* has the same kernel and a compiler # generating 64-bit code. GNU and HP use different nomenclature: # # $ CC_FOR_BUILD=cc ./config.guess # => hppa2.0w-hp-hpux11.23 # $ CC_FOR_BUILD="cc +DA2.0w" ./config.guess # => hppa64-hp-hpux11.23 if echo __LP64__ | (CCOPTS="" $CC_FOR_BUILD -E - 2>/dev/null) | grep -q __LP64__ then HP_ARCH=hppa2.0w else HP_ARCH=hppa64 fi fi echo ${HP_ARCH}-hp-hpux${HPUX_REV} exit ;; ia64:HP-UX:*:*) HPUX_REV=`echo ${UNAME_RELEASE}|sed -e 's/[^.]*.[0B]*//'` echo ia64-hp-hpux${HPUX_REV} exit ;; 3050*:HI-UX:*:*) eval $set_cc_for_build sed 's/^ //' << EOF >$dummy.c #include int main () { long cpu = sysconf (_SC_CPU_VERSION); /* The order matters, because CPU_IS_HP_MC68K erroneously returns true for CPU_PA_RISC1_0. CPU_IS_PA_RISC returns correct results, however. */ if (CPU_IS_PA_RISC (cpu)) { switch (cpu) { case CPU_PA_RISC1_0: puts ("hppa1.0-hitachi-hiuxwe2"); break; case CPU_PA_RISC1_1: puts ("hppa1.1-hitachi-hiuxwe2"); break; case CPU_PA_RISC2_0: puts ("hppa2.0-hitachi-hiuxwe2"); break; default: puts ("hppa-hitachi-hiuxwe2"); break; } } else if (CPU_IS_HP_MC68K (cpu)) puts ("m68k-hitachi-hiuxwe2"); else puts ("unknown-hitachi-hiuxwe2"); exit (0); } EOF $CC_FOR_BUILD -o $dummy $dummy.c && SYSTEM_NAME=`$dummy` && { echo "$SYSTEM_NAME"; exit; } echo unknown-hitachi-hiuxwe2 exit ;; 9000/7??:4.3bsd:*:* | 9000/8?[79]:4.3bsd:*:* ) echo hppa1.1-hp-bsd exit ;; 9000/8??:4.3bsd:*:*) echo hppa1.0-hp-bsd exit ;; *9??*:MPE/iX:*:* | *3000*:MPE/iX:*:*) echo hppa1.0-hp-mpeix exit ;; hp7??:OSF1:*:* | hp8?[79]:OSF1:*:* ) echo hppa1.1-hp-osf exit ;; hp8??:OSF1:*:*) echo hppa1.0-hp-osf exit ;; i*86:OSF1:*:*) if [ -x /usr/sbin/sysversion ] ; then echo ${UNAME_MACHINE}-unknown-osf1mk else echo ${UNAME_MACHINE}-unknown-osf1 fi exit ;; parisc*:Lites*:*:*) echo hppa1.1-hp-lites exit ;; C1*:ConvexOS:*:* | convex:ConvexOS:C1*:*) echo c1-convex-bsd exit ;; C2*:ConvexOS:*:* | convex:ConvexOS:C2*:*) if getsysinfo -f scalar_acc then echo c32-convex-bsd else echo c2-convex-bsd fi exit ;; C34*:ConvexOS:*:* | convex:ConvexOS:C34*:*) echo c34-convex-bsd exit ;; C38*:ConvexOS:*:* | convex:ConvexOS:C38*:*) echo c38-convex-bsd exit ;; C4*:ConvexOS:*:* | convex:ConvexOS:C4*:*) echo c4-convex-bsd exit ;; CRAY*Y-MP:*:*:*) echo ymp-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/' exit ;; CRAY*[A-Z]90:*:*:*) echo ${UNAME_MACHINE}-cray-unicos${UNAME_RELEASE} \ | sed -e 's/CRAY.*\([A-Z]90\)/\1/' \ -e y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/ \ -e 's/\.[^.]*$/.X/' exit ;; CRAY*TS:*:*:*) echo t90-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/' exit ;; CRAY*T3E:*:*:*) echo alphaev5-cray-unicosmk${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/' exit ;; CRAY*SV1:*:*:*) echo sv1-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/' exit ;; *:UNICOS/mp:*:*) echo craynv-cray-unicosmp${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/' exit ;; F30[01]:UNIX_System_V:*:* | F700:UNIX_System_V:*:*) FUJITSU_PROC=`uname -m | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz` FUJITSU_SYS=`uname -p | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz | sed -e 's/\///'` FUJITSU_REL=`echo ${UNAME_RELEASE} | sed -e 's/ /_/'` echo "${FUJITSU_PROC}-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}" exit ;; 5000:UNIX_System_V:4.*:*) FUJITSU_SYS=`uname -p | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz | sed -e 's/\///'` FUJITSU_REL=`echo ${UNAME_RELEASE} | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz | sed -e 's/ /_/'` echo "sparc-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}" exit ;; i*86:BSD/386:*:* | i*86:BSD/OS:*:* | *:Ascend\ Embedded/OS:*:*) echo ${UNAME_MACHINE}-pc-bsdi${UNAME_RELEASE} exit ;; sparc*:BSD/OS:*:*) echo sparc-unknown-bsdi${UNAME_RELEASE} exit ;; *:BSD/OS:*:*) echo ${UNAME_MACHINE}-unknown-bsdi${UNAME_RELEASE} exit ;; *:FreeBSD:*:*) UNAME_PROCESSOR=`/usr/bin/uname -p` case ${UNAME_PROCESSOR} in amd64) UNAME_PROCESSOR=x86_64 ;; i386) UNAME_PROCESSOR=i586 ;; esac echo ${UNAME_PROCESSOR}-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` exit ;; i*:CYGWIN*:*) echo ${UNAME_MACHINE}-pc-cygwin exit ;; *:MINGW64*:*) echo ${UNAME_MACHINE}-pc-mingw64 exit ;; *:MINGW*:*) echo ${UNAME_MACHINE}-pc-mingw32 exit ;; *:MSYS*:*) echo ${UNAME_MACHINE}-pc-msys exit ;; i*:windows32*:*) # uname -m includes "-pc" on this system. echo ${UNAME_MACHINE}-mingw32 exit ;; i*:PW*:*) echo ${UNAME_MACHINE}-pc-pw32 exit ;; *:Interix*:*) case ${UNAME_MACHINE} in x86) echo i586-pc-interix${UNAME_RELEASE} exit ;; authenticamd | genuineintel | EM64T) echo x86_64-unknown-interix${UNAME_RELEASE} exit ;; IA64) echo ia64-unknown-interix${UNAME_RELEASE} exit ;; esac ;; [345]86:Windows_95:* | [345]86:Windows_98:* | [345]86:Windows_NT:*) echo i${UNAME_MACHINE}-pc-mks exit ;; 8664:Windows_NT:*) echo x86_64-pc-mks exit ;; i*:Windows_NT*:* | Pentium*:Windows_NT*:*) # How do we know it's Interix rather than the generic POSIX subsystem? # It also conflicts with pre-2.0 versions of AT&T UWIN. Should we # UNAME_MACHINE based on the output of uname instead of i386? echo i586-pc-interix exit ;; i*:UWIN*:*) echo ${UNAME_MACHINE}-pc-uwin exit ;; amd64:CYGWIN*:*:* | x86_64:CYGWIN*:*:*) echo x86_64-unknown-cygwin exit ;; p*:CYGWIN*:*) echo powerpcle-unknown-cygwin exit ;; prep*:SunOS:5.*:*) echo powerpcle-unknown-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'` exit ;; *:GNU:*:*) # the GNU system echo `echo ${UNAME_MACHINE}|sed -e 's,[-/].*$,,'`-unknown-${LIBC}`echo ${UNAME_RELEASE}|sed -e 's,/.*$,,'` exit ;; *:GNU/*:*:*) # other systems with GNU libc and userland echo ${UNAME_MACHINE}-unknown-`echo ${UNAME_SYSTEM} | sed 's,^[^/]*/,,' | tr "[:upper:]" "[:lower:]"``echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`-${LIBC} exit ;; i*86:Minix:*:*) echo ${UNAME_MACHINE}-pc-minix exit ;; aarch64:Linux:*:*) echo ${UNAME_MACHINE}-unknown-linux-${LIBC} exit ;; aarch64_be:Linux:*:*) UNAME_MACHINE=aarch64_be echo ${UNAME_MACHINE}-unknown-linux-${LIBC} exit ;; alpha:Linux:*:*) case `sed -n '/^cpu model/s/^.*: \(.*\)/\1/p' < /proc/cpuinfo` in EV5) UNAME_MACHINE=alphaev5 ;; EV56) UNAME_MACHINE=alphaev56 ;; PCA56) UNAME_MACHINE=alphapca56 ;; PCA57) UNAME_MACHINE=alphapca56 ;; EV6) UNAME_MACHINE=alphaev6 ;; EV67) UNAME_MACHINE=alphaev67 ;; EV68*) UNAME_MACHINE=alphaev68 ;; esac objdump --private-headers /bin/sh | grep -q ld.so.1 if test "$?" = 0 ; then LIBC=gnulibc1 ; fi echo ${UNAME_MACHINE}-unknown-linux-${LIBC} exit ;; arc:Linux:*:* | arceb:Linux:*:*) echo ${UNAME_MACHINE}-unknown-linux-${LIBC} exit ;; arm*:Linux:*:*) eval $set_cc_for_build if echo __ARM_EABI__ | $CC_FOR_BUILD -E - 2>/dev/null \ | grep -q __ARM_EABI__ then echo ${UNAME_MACHINE}-unknown-linux-${LIBC} else if echo __ARM_PCS_VFP | $CC_FOR_BUILD -E - 2>/dev/null \ | grep -q __ARM_PCS_VFP then echo ${UNAME_MACHINE}-unknown-linux-${LIBC}eabi else echo ${UNAME_MACHINE}-unknown-linux-${LIBC}eabihf fi fi exit ;; avr32*:Linux:*:*) echo ${UNAME_MACHINE}-unknown-linux-${LIBC} exit ;; cris:Linux:*:*) echo ${UNAME_MACHINE}-axis-linux-${LIBC} exit ;; crisv32:Linux:*:*) echo ${UNAME_MACHINE}-axis-linux-${LIBC} exit ;; e2k:Linux:*:*) echo ${UNAME_MACHINE}-unknown-linux-${LIBC} exit ;; frv:Linux:*:*) echo ${UNAME_MACHINE}-unknown-linux-${LIBC} exit ;; hexagon:Linux:*:*) echo ${UNAME_MACHINE}-unknown-linux-${LIBC} exit ;; i*86:Linux:*:*) echo ${UNAME_MACHINE}-pc-linux-${LIBC} exit ;; ia64:Linux:*:*) echo ${UNAME_MACHINE}-unknown-linux-${LIBC} exit ;; k1om:Linux:*:*) echo ${UNAME_MACHINE}-unknown-linux-${LIBC} exit ;; m32r*:Linux:*:*) echo ${UNAME_MACHINE}-unknown-linux-${LIBC} exit ;; m68*:Linux:*:*) echo ${UNAME_MACHINE}-unknown-linux-${LIBC} exit ;; mips:Linux:*:* | mips64:Linux:*:*) eval $set_cc_for_build sed 's/^ //' << EOF >$dummy.c #undef CPU #undef ${UNAME_MACHINE} #undef ${UNAME_MACHINE}el #if defined(__MIPSEL__) || defined(__MIPSEL) || defined(_MIPSEL) || defined(MIPSEL) CPU=${UNAME_MACHINE}el #else #if defined(__MIPSEB__) || defined(__MIPSEB) || defined(_MIPSEB) || defined(MIPSEB) CPU=${UNAME_MACHINE} #else CPU= #endif #endif EOF eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep '^CPU'` test x"${CPU}" != x && { echo "${CPU}-unknown-linux-${LIBC}"; exit; } ;; mips64el:Linux:*:*) echo ${UNAME_MACHINE}-unknown-linux-${LIBC} exit ;; openrisc*:Linux:*:*) echo or1k-unknown-linux-${LIBC} exit ;; or32:Linux:*:* | or1k*:Linux:*:*) echo ${UNAME_MACHINE}-unknown-linux-${LIBC} exit ;; padre:Linux:*:*) echo sparc-unknown-linux-${LIBC} exit ;; parisc64:Linux:*:* | hppa64:Linux:*:*) echo hppa64-unknown-linux-${LIBC} exit ;; parisc:Linux:*:* | hppa:Linux:*:*) # Look for CPU level case `grep '^cpu[^a-z]*:' /proc/cpuinfo 2>/dev/null | cut -d' ' -f2` in PA7*) echo hppa1.1-unknown-linux-${LIBC} ;; PA8*) echo hppa2.0-unknown-linux-${LIBC} ;; *) echo hppa-unknown-linux-${LIBC} ;; esac exit ;; ppc64:Linux:*:*) echo powerpc64-unknown-linux-${LIBC} exit ;; ppc:Linux:*:*) echo powerpc-unknown-linux-${LIBC} exit ;; ppc64le:Linux:*:*) echo powerpc64le-unknown-linux-${LIBC} exit ;; ppcle:Linux:*:*) echo powerpcle-unknown-linux-${LIBC} exit ;; riscv32:Linux:*:* | riscv64:Linux:*:*) echo ${UNAME_MACHINE}-unknown-linux-${LIBC} exit ;; s390:Linux:*:* | s390x:Linux:*:*) echo ${UNAME_MACHINE}-ibm-linux-${LIBC} exit ;; sh64*:Linux:*:*) echo ${UNAME_MACHINE}-unknown-linux-${LIBC} exit ;; sh*:Linux:*:*) echo ${UNAME_MACHINE}-unknown-linux-${LIBC} exit ;; sparc:Linux:*:* | sparc64:Linux:*:*) echo ${UNAME_MACHINE}-unknown-linux-${LIBC} exit ;; tile*:Linux:*:*) echo ${UNAME_MACHINE}-unknown-linux-${LIBC} exit ;; vax:Linux:*:*) echo ${UNAME_MACHINE}-dec-linux-${LIBC} exit ;; x86_64:Linux:*:*) echo ${UNAME_MACHINE}-pc-linux-${LIBC} exit ;; xtensa*:Linux:*:*) echo ${UNAME_MACHINE}-unknown-linux-${LIBC} exit ;; i*86:DYNIX/ptx:4*:*) # ptx 4.0 does uname -s correctly, with DYNIX/ptx in there. # earlier versions are messed up and put the nodename in both # sysname and nodename. echo i386-sequent-sysv4 exit ;; i*86:UNIX_SV:4.2MP:2.*) # Unixware is an offshoot of SVR4, but it has its own version # number series starting with 2... # I am not positive that other SVR4 systems won't match this, # I just have to hope. -- rms. # Use sysv4.2uw... so that sysv4* matches it. echo ${UNAME_MACHINE}-pc-sysv4.2uw${UNAME_VERSION} exit ;; i*86:OS/2:*:*) # If we were able to find `uname', then EMX Unix compatibility # is probably installed. echo ${UNAME_MACHINE}-pc-os2-emx exit ;; i*86:XTS-300:*:STOP) echo ${UNAME_MACHINE}-unknown-stop exit ;; i*86:atheos:*:*) echo ${UNAME_MACHINE}-unknown-atheos exit ;; i*86:syllable:*:*) echo ${UNAME_MACHINE}-pc-syllable exit ;; i*86:LynxOS:2.*:* | i*86:LynxOS:3.[01]*:* | i*86:LynxOS:4.[02]*:*) echo i386-unknown-lynxos${UNAME_RELEASE} exit ;; i*86:*DOS:*:*) echo ${UNAME_MACHINE}-pc-msdosdjgpp exit ;; i*86:*:4.*:* | i*86:SYSTEM_V:4.*:*) UNAME_REL=`echo ${UNAME_RELEASE} | sed 's/\/MP$//'` if grep Novell /usr/include/link.h >/dev/null 2>/dev/null; then echo ${UNAME_MACHINE}-univel-sysv${UNAME_REL} else echo ${UNAME_MACHINE}-pc-sysv${UNAME_REL} fi exit ;; i*86:*:5:[678]*) # UnixWare 7.x, OpenUNIX and OpenServer 6. case `/bin/uname -X | grep "^Machine"` in *486*) UNAME_MACHINE=i486 ;; *Pentium) UNAME_MACHINE=i586 ;; *Pent*|*Celeron) UNAME_MACHINE=i686 ;; esac echo ${UNAME_MACHINE}-unknown-sysv${UNAME_RELEASE}${UNAME_SYSTEM}${UNAME_VERSION} exit ;; i*86:*:3.2:*) if test -f /usr/options/cb.name; then UNAME_REL=`sed -n 's/.*Version //p' /dev/null >/dev/null ; then UNAME_REL=`(/bin/uname -X|grep Release|sed -e 's/.*= //')` (/bin/uname -X|grep i80486 >/dev/null) && UNAME_MACHINE=i486 (/bin/uname -X|grep '^Machine.*Pentium' >/dev/null) \ && UNAME_MACHINE=i586 (/bin/uname -X|grep '^Machine.*Pent *II' >/dev/null) \ && UNAME_MACHINE=i686 (/bin/uname -X|grep '^Machine.*Pentium Pro' >/dev/null) \ && UNAME_MACHINE=i686 echo ${UNAME_MACHINE}-pc-sco$UNAME_REL else echo ${UNAME_MACHINE}-pc-sysv32 fi exit ;; pc:*:*:*) # Left here for compatibility: # uname -m prints for DJGPP always 'pc', but it prints nothing about # the processor, so we play safe by assuming i586. # Note: whatever this is, it MUST be the same as what config.sub # prints for the "djgpp" host, or else GDB configure will decide that # this is a cross-build. echo i586-pc-msdosdjgpp exit ;; Intel:Mach:3*:*) echo i386-pc-mach3 exit ;; paragon:*:*:*) echo i860-intel-osf1 exit ;; i860:*:4.*:*) # i860-SVR4 if grep Stardent /usr/include/sys/uadmin.h >/dev/null 2>&1 ; then echo i860-stardent-sysv${UNAME_RELEASE} # Stardent Vistra i860-SVR4 else # Add other i860-SVR4 vendors below as they are discovered. echo i860-unknown-sysv${UNAME_RELEASE} # Unknown i860-SVR4 fi exit ;; mini*:CTIX:SYS*5:*) # "miniframe" echo m68010-convergent-sysv exit ;; mc68k:UNIX:SYSTEM5:3.51m) echo m68k-convergent-sysv exit ;; M680?0:D-NIX:5.3:*) echo m68k-diab-dnix exit ;; M68*:*:R3V[5678]*:*) test -r /sysV68 && { echo 'm68k-motorola-sysv'; exit; } ;; 3[345]??:*:4.0:3.0 | 3[34]??A:*:4.0:3.0 | 3[34]??,*:*:4.0:3.0 | 3[34]??/*:*:4.0:3.0 | 4400:*:4.0:3.0 | 4850:*:4.0:3.0 | SKA40:*:4.0:3.0 | SDS2:*:4.0:3.0 | SHG2:*:4.0:3.0 | S7501*:*:4.0:3.0) OS_REL='' test -r /etc/.relid \ && OS_REL=.`sed -n 's/[^ ]* [^ ]* \([0-9][0-9]\).*/\1/p' < /etc/.relid` /bin/uname -p 2>/dev/null | grep 86 >/dev/null \ && { echo i486-ncr-sysv4.3${OS_REL}; exit; } /bin/uname -p 2>/dev/null | /bin/grep entium >/dev/null \ && { echo i586-ncr-sysv4.3${OS_REL}; exit; } ;; 3[34]??:*:4.0:* | 3[34]??,*:*:4.0:*) /bin/uname -p 2>/dev/null | grep 86 >/dev/null \ && { echo i486-ncr-sysv4; exit; } ;; NCR*:*:4.2:* | MPRAS*:*:4.2:*) OS_REL='.3' test -r /etc/.relid \ && OS_REL=.`sed -n 's/[^ ]* [^ ]* \([0-9][0-9]\).*/\1/p' < /etc/.relid` /bin/uname -p 2>/dev/null | grep 86 >/dev/null \ && { echo i486-ncr-sysv4.3${OS_REL}; exit; } /bin/uname -p 2>/dev/null | /bin/grep entium >/dev/null \ && { echo i586-ncr-sysv4.3${OS_REL}; exit; } /bin/uname -p 2>/dev/null | /bin/grep pteron >/dev/null \ && { echo i586-ncr-sysv4.3${OS_REL}; exit; } ;; m68*:LynxOS:2.*:* | m68*:LynxOS:3.0*:*) echo m68k-unknown-lynxos${UNAME_RELEASE} exit ;; mc68030:UNIX_System_V:4.*:*) echo m68k-atari-sysv4 exit ;; TSUNAMI:LynxOS:2.*:*) echo sparc-unknown-lynxos${UNAME_RELEASE} exit ;; rs6000:LynxOS:2.*:*) echo rs6000-unknown-lynxos${UNAME_RELEASE} exit ;; PowerPC:LynxOS:2.*:* | PowerPC:LynxOS:3.[01]*:* | PowerPC:LynxOS:4.[02]*:*) echo powerpc-unknown-lynxos${UNAME_RELEASE} exit ;; SM[BE]S:UNIX_SV:*:*) echo mips-dde-sysv${UNAME_RELEASE} exit ;; RM*:ReliantUNIX-*:*:*) echo mips-sni-sysv4 exit ;; RM*:SINIX-*:*:*) echo mips-sni-sysv4 exit ;; *:SINIX-*:*:*) if uname -p 2>/dev/null >/dev/null ; then UNAME_MACHINE=`(uname -p) 2>/dev/null` echo ${UNAME_MACHINE}-sni-sysv4 else echo ns32k-sni-sysv fi exit ;; PENTIUM:*:4.0*:*) # Unisys `ClearPath HMP IX 4000' SVR4/MP effort # says echo i586-unisys-sysv4 exit ;; *:UNIX_System_V:4*:FTX*) # From Gerald Hewes . # How about differentiating between stratus architectures? -djm echo hppa1.1-stratus-sysv4 exit ;; *:*:*:FTX*) # From seanf@swdc.stratus.com. echo i860-stratus-sysv4 exit ;; i*86:VOS:*:*) # From Paul.Green@stratus.com. echo ${UNAME_MACHINE}-stratus-vos exit ;; *:VOS:*:*) # From Paul.Green@stratus.com. echo hppa1.1-stratus-vos exit ;; mc68*:A/UX:*:*) echo m68k-apple-aux${UNAME_RELEASE} exit ;; news*:NEWS-OS:6*:*) echo mips-sony-newsos6 exit ;; R[34]000:*System_V*:*:* | R4000:UNIX_SYSV:*:* | R*000:UNIX_SV:*:*) if [ -d /usr/nec ]; then echo mips-nec-sysv${UNAME_RELEASE} else echo mips-unknown-sysv${UNAME_RELEASE} fi exit ;; BeBox:BeOS:*:*) # BeOS running on hardware made by Be, PPC only. echo powerpc-be-beos exit ;; BeMac:BeOS:*:*) # BeOS running on Mac or Mac clone, PPC only. echo powerpc-apple-beos exit ;; BePC:BeOS:*:*) # BeOS running on Intel PC compatible. echo i586-pc-beos exit ;; BePC:Haiku:*:*) # Haiku running on Intel PC compatible. echo i586-pc-haiku exit ;; x86_64:Haiku:*:*) echo x86_64-unknown-haiku exit ;; SX-4:SUPER-UX:*:*) echo sx4-nec-superux${UNAME_RELEASE} exit ;; SX-5:SUPER-UX:*:*) echo sx5-nec-superux${UNAME_RELEASE} exit ;; SX-6:SUPER-UX:*:*) echo sx6-nec-superux${UNAME_RELEASE} exit ;; SX-7:SUPER-UX:*:*) echo sx7-nec-superux${UNAME_RELEASE} exit ;; SX-8:SUPER-UX:*:*) echo sx8-nec-superux${UNAME_RELEASE} exit ;; SX-8R:SUPER-UX:*:*) echo sx8r-nec-superux${UNAME_RELEASE} exit ;; SX-ACE:SUPER-UX:*:*) echo sxace-nec-superux${UNAME_RELEASE} exit ;; Power*:Rhapsody:*:*) echo powerpc-apple-rhapsody${UNAME_RELEASE} exit ;; *:Rhapsody:*:*) echo ${UNAME_MACHINE}-apple-rhapsody${UNAME_RELEASE} exit ;; *:Darwin:*:*) UNAME_PROCESSOR=`uname -p` || UNAME_PROCESSOR=unknown eval $set_cc_for_build if test "$UNAME_PROCESSOR" = unknown ; then UNAME_PROCESSOR=powerpc fi if test `echo "$UNAME_RELEASE" | sed -e 's/\..*//'` -le 10 ; then if [ "$CC_FOR_BUILD" != no_compiler_found ]; then if (echo '#ifdef __LP64__'; echo IS_64BIT_ARCH; echo '#endif') | \ (CCOPTS="" $CC_FOR_BUILD -E - 2>/dev/null) | \ grep IS_64BIT_ARCH >/dev/null then case $UNAME_PROCESSOR in i386) UNAME_PROCESSOR=x86_64 ;; powerpc) UNAME_PROCESSOR=powerpc64 ;; esac fi # On 10.4-10.6 one might compile for PowerPC via gcc -arch ppc if (echo '#ifdef __POWERPC__'; echo IS_PPC; echo '#endif') | \ (CCOPTS="" $CC_FOR_BUILD -E - 2>/dev/null) | \ grep IS_PPC >/dev/null then UNAME_PROCESSOR=powerpc fi fi elif test "$UNAME_PROCESSOR" = i386 ; then # Avoid executing cc on OS X 10.9, as it ships with a stub # that puts up a graphical alert prompting to install # developer tools. Any system running Mac OS X 10.7 or # later (Darwin 11 and later) is required to have a 64-bit # processor. This is not true of the ARM version of Darwin # that Apple uses in portable devices. UNAME_PROCESSOR=x86_64 fi echo ${UNAME_PROCESSOR}-apple-darwin${UNAME_RELEASE} exit ;; *:procnto*:*:* | *:QNX:[0123456789]*:*) UNAME_PROCESSOR=`uname -p` if test "$UNAME_PROCESSOR" = x86; then UNAME_PROCESSOR=i386 UNAME_MACHINE=pc fi echo ${UNAME_PROCESSOR}-${UNAME_MACHINE}-nto-qnx${UNAME_RELEASE} exit ;; *:QNX:*:4*) echo i386-pc-qnx exit ;; NEO-*:NONSTOP_KERNEL:*:*) echo neo-tandem-nsk${UNAME_RELEASE} exit ;; NSE-*:NONSTOP_KERNEL:*:*) echo nse-tandem-nsk${UNAME_RELEASE} exit ;; NSR-*:NONSTOP_KERNEL:*:*) echo nsr-tandem-nsk${UNAME_RELEASE} exit ;; NSX-*:NONSTOP_KERNEL:*:*) echo nsx-tandem-nsk${UNAME_RELEASE} exit ;; *:NonStop-UX:*:*) echo mips-compaq-nonstopux exit ;; BS2000:POSIX*:*:*) echo bs2000-siemens-sysv exit ;; DS/*:UNIX_System_V:*:*) echo ${UNAME_MACHINE}-${UNAME_SYSTEM}-${UNAME_RELEASE} exit ;; *:Plan9:*:*) # "uname -m" is not consistent, so use $cputype instead. 386 # is converted to i386 for consistency with other x86 # operating systems. if test "$cputype" = 386; then UNAME_MACHINE=i386 else UNAME_MACHINE="$cputype" fi echo ${UNAME_MACHINE}-unknown-plan9 exit ;; *:TOPS-10:*:*) echo pdp10-unknown-tops10 exit ;; *:TENEX:*:*) echo pdp10-unknown-tenex exit ;; KS10:TOPS-20:*:* | KL10:TOPS-20:*:* | TYPE4:TOPS-20:*:*) echo pdp10-dec-tops20 exit ;; XKL-1:TOPS-20:*:* | TYPE5:TOPS-20:*:*) echo pdp10-xkl-tops20 exit ;; *:TOPS-20:*:*) echo pdp10-unknown-tops20 exit ;; *:ITS:*:*) echo pdp10-unknown-its exit ;; SEI:*:*:SEIUX) echo mips-sei-seiux${UNAME_RELEASE} exit ;; *:DragonFly:*:*) echo ${UNAME_MACHINE}-unknown-dragonfly`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` exit ;; *:*VMS:*:*) UNAME_MACHINE=`(uname -p) 2>/dev/null` case "${UNAME_MACHINE}" in A*) echo alpha-dec-vms ; exit ;; I*) echo ia64-dec-vms ; exit ;; V*) echo vax-dec-vms ; exit ;; esac ;; *:XENIX:*:SysV) echo i386-pc-xenix exit ;; i*86:skyos:*:*) echo ${UNAME_MACHINE}-pc-skyos`echo ${UNAME_RELEASE} | sed -e 's/ .*$//'` exit ;; i*86:rdos:*:*) echo ${UNAME_MACHINE}-pc-rdos exit ;; i*86:AROS:*:*) echo ${UNAME_MACHINE}-pc-aros exit ;; x86_64:VMkernel:*:*) echo ${UNAME_MACHINE}-unknown-esx exit ;; amd64:Isilon\ OneFS:*:*) echo x86_64-unknown-onefs exit ;; esac cat >&2 </dev/null || echo unknown` uname -r = `(uname -r) 2>/dev/null || echo unknown` uname -s = `(uname -s) 2>/dev/null || echo unknown` uname -v = `(uname -v) 2>/dev/null || echo unknown` /usr/bin/uname -p = `(/usr/bin/uname -p) 2>/dev/null` /bin/uname -X = `(/bin/uname -X) 2>/dev/null` hostinfo = `(hostinfo) 2>/dev/null` /bin/universe = `(/bin/universe) 2>/dev/null` /usr/bin/arch -k = `(/usr/bin/arch -k) 2>/dev/null` /bin/arch = `(/bin/arch) 2>/dev/null` /usr/bin/oslevel = `(/usr/bin/oslevel) 2>/dev/null` /usr/convex/getsysinfo = `(/usr/convex/getsysinfo) 2>/dev/null` UNAME_MACHINE = ${UNAME_MACHINE} UNAME_RELEASE = ${UNAME_RELEASE} UNAME_SYSTEM = ${UNAME_SYSTEM} UNAME_VERSION = ${UNAME_VERSION} EOF exit 1 # Local variables: # eval: (add-hook 'write-file-hooks 'time-stamp) # time-stamp-start: "timestamp='" # time-stamp-format: "%:y-%02m-%02d" # time-stamp-end: "'" # End: ngrep-1_47/ngrep.80000644000175000017500000003575113154335003013411 0ustar romainromain.\" All content, except portions of the bpf filter explanation, are: .\" .\" Copyright (c) 2017 Jordan Ritter .\" .\" Please refer to the LICENSE file for more information. .TH NGREP 8 "September 2017" *nux "User Manuals" .SH NAME ngrep \- network grep .SH SYNOPSIS .B ngrep <-hNXViwqpevxlDtTRM> <-IO .I pcap_dump .B > < -n .I num .B > < -d .I dev .B > < -A .I num .B > < -s .I snaplen .B > < -S .I limitlen .B > < -W .I normal|byline|single|none .B > < -c .I cols .B > < -P .I char .B > < -F .I file .B > < .I match expression .B > < .I bpf filter .B > .SH DESCRIPTION ngrep strives to provide most of GNU grep's common features, applying them to the network layer. ngrep is a pcap-aware tool that will allow you to specify extended regular expressions to match against data payloads of packets. It currently recognizes TCP, UDP and ICMP across Ethernet, PPP, SLIP, FDDI and null interfaces, and understands bpf filter logic in the same fashion as more common packet sniffing tools, such as .BR tcpdump (8) and .BR snoop (1). .SH OPTIONS .IP -h Display help/usage information. .IP -N Show sub-protocol number along with single-character identifier (useful when observing raw or unknown protocols). .IP -X Treat the match expression as a hexadecimal string. See the explanation of \fImatch expression\fP below. .IP -V Display version information. .IP -i Ignore case for the regex expression. .IP -w Match the regex expression as a word. .IP -q Be quiet; don't output any information other than packet headers and their payloads (if relevant). .IP -p Don't put the interface into promiscuous mode. .IP -e Show empty packets. Normally empty packets are discarded because they have no payload to search. If specified, empty packets will be shown, regardless of the specified regex expression. .IP -v Invert the match; only display packets that don't match. .IP -x Dump packet contents as hexadecimal as well as ASCII. .IP -l Make stdout line buffered. .IP -D When reading pcap_dump files, replay them at their recorded time intervals (mimic realtime). .IP -t Print a timestamp in the form of YYYY/MM/DD HH:MM:SS.UUUUUU everytime a packet is matched. .IP -T Print a timestamp in the form of +S.UUUUUU, indicating the delta between packet matches. Specify a second time to indicate the delta since the first packet match. .IP -R Do not try to drop privileges to the DROPPRIVS_USER. ngrep makes no effort to validate input from live or offline sources as it is focused more on performance and handling large amounts of data than protocol correctness, which is most often a fair assumption to make. However, sometimes it matters and thus as a rule ngrep will try to be defensive and drop any root privileges it might have. There exist scenarios where this behaviour can become an obstacle, so this option is provided to end-users who want to disable this feature, but must do so with an understanding of the risks. Packets can be randomly malformed or even specifically designed to overflow sniffers and take control of them, and revoking root privileges is currently the only risk mitigation ngrep employs against such an attack. Use this option and turn it off at your own risk. .IP "-c cols" Explicitly set the console width to ``cols''. Note that this is the console width, and not the full width of what ngrep prints out as payloads; depending on the output mode ngrep may print less than ``cols'' bytes per line (indentation). .IP "-F file" Read in the bpf filter from the specified filename. This is a compatibility option for users familiar with tcpdump. Please note that specifying ``-F'' will override any bpf filter specified on the command-line. .IP "-P char" Specify an alternate character to signify non-printable characters when displayed. The default is ``.''. .IP "-K num" Kill matching TCP connections (like tcpkill). The numeric argument controls how many RST segments are sent. .IP "-W normal|byline|single|none" Specify an alternate manner for displaying packets, when not in hexadecimal mode. The ``byline'' mode honors embedded linefeeds, wrapping text only when a linefeed is encountered (useful for observing HTTP transactions, for instance). The ``none'' mode doesn't wrap under any circumstance (entire payload is displayed on one line). The ``single'' mode is conceptually the same as ``none'', except that everything including IP and source/destination header information is all on one line. ``normal'' is the default mode and is only included for completeness. This option is incompatible with ``-x''. .IP "-s snaplen" Set the bpf caplen to snaplen (default 65536). .IP "-S limitlen" Set the upper limit on the size of packets that ngrep will look at. Useful for looking at only the first N bytes of packets without changing the BPF snaplen. .IP "-I pcap_dump" Input file pcap_dump into ngrep. Works with any pcap-compatible dump file format. This option is useful for searching for a wide range of different patterns over the same packet stream. .IP "-O pcap_dump" Output matched packets to a pcap-compatible dump file. This feature does not interfere with normal output to stdout. .IP "-n num" Match only .I \fInum\fP packets total, then exit. .IP "-d dev" By default ngrep will select a default interface to listen on. Use this option to force ngrep to listen on interface \fIdev\fP. .IP "-A num" Dump \fInum\fP packets of trailing context after matching a packet. .IP "\fI match expression\fP" A match expression is either an extended regular expression, or if the \fI-X\fP option is specified, a string signifying a hexadecimal value. An extended regular expression follows the rules as implemented by the .B GNU regex .BR library . Hexadecimal expressions can optionally be preceded by `0x'. E.g., `DEADBEEF', `0xDEADBEEF'. .IP "\fI bpf filter\fP" Selects a filter that specifies what packets will be dumped. If no \fIbpf filter\fP is given, all IP packets seen on the selected interface will be dumped. Otherwise, only packets for which \fIbpf filter\fP is `true' will be dumped. .LP The \fIbpf filter\fP consists of one or more .I primitives. Primitives usually consist of an .I id (name or number) preceded by one or more qualifiers. There are three different kinds of qualifier: .IP \fItype\fP qualifiers say what kind of thing the id name or number refers to. Possible types are .BR host , .B net and .BR port . E.g., `host blort', `net 1.2.3', `port 80'. If there is no type qualifier, .B host is assumed. .IP \fIdir\fP qualifiers specify a particular transfer direction to and/or from .I id. Possible directions are .BR src , .BR dst , .B "src or dst" and .B "src and" .BR dst . E.g., `src foo', `dst net 1.2.3', `src or dst port ftp-data'. If there is no dir qualifier, .B "src or dst" is assumed. For `null' link layers (i.e. point to point protocols such as slip) the .B inbound and .B outbound qualifiers can be used to specify a desired direction. .IP \fIproto\fP qualifiers are restricted to ip-only protocols. Possible protos are: .B tcp , .B udp and .BR icmp . e.g., `udp src foo' or `tcp port 21'. If there is no proto qualifier, all protocols consistent with the type are assumed. E.g., `src foo' means `ip and ((tcp or udp) src foo)', `net bar' means `ip and (net bar)', and `port 53' means `ip and ((tcp or udp) port 53)'. .LP In addition to the above, there are some special `primitive' keywords that don't follow the pattern: .BR gateway , .BR broadcast , .BR less , .B greater and arithmetic expressions. All of these are described below. .LP More complex filter expressions are built up by using the words .BR and , .B or and .B not to combine primitives. E.g., `host blort and not port ftp and not port ftp-data'. To save typing, identical qualifier lists can be omitted. E.g., `tcp dst port ftp or ftp-data or domain' is exactly the same as `tcp dst port ftp or tcp dst port ftp-data or tcp dst port domain'. .LP Allowable primitives are: .IP "\fBdst host \fIhost\fR" True if the IP destination field of the packet is \fIhost\fP, which may be either an address or a name. .IP "\fBsrc host \fIhost\fR" True if the IP source field of the packet is \fIhost\fP. .IP "\fBhost \fIhost\fP" True if either the IP source or destination of the packet is \fIhost\fP. Any of the above host expressions can be prepended with the keywords, \fBip\fP, \fBarp\fP, or \fBrarp\fP as in: .in +.5i .nf \fBip host \fIhost\fR .fi .in -.5i which is equivalent to: .in +.5i .IP "\fBether dst \fIehost\fP" True if the ethernet destination address is \fIehost\fP. \fIEhost\fP may be either a name from /etc/ethers or a number (see .IR ethers (3N) for numeric format). .IP "\fBether src \fIehost\fP" True if the ethernet source address is \fIehost\fP. .IP "\fBether host \fIehost\fP" True if either the ethernet source or destination address is \fIehost\fP. .IP "\fBgateway\fP \fIhost\fP" True if the packet used \fIhost\fP as a gateway. I.e., the ethernet source or destination address was \fIhost\fP but neither the IP source nor the IP destination was \fIhost\fP. \fIHost\fP must be a name and must be found in both /etc/hosts and /etc/ethers. (An equivalent expression is .in +.5i .nf \fBether host \fIehost \fBand not host \fIhost\fR .fi .in -.5i which can be used with either names or numbers for \fIhost / ehost\fP.) .IP "\fBdst net \fInet\fR" True if the IP destination address of the packet has a network number of \fInet\fP. \fINet\fP may be either a name from /etc/networks or a network number (see \fInetworks(4)\fP for details). .IP "\fBsrc net \fInet\fR" True if the IP source address of the packet has a network number of \fInet\fP. .IP "\fBnet \fInet\fR" True if either the IP source or destination address of the packet has a network number of \fInet\fP. .IP "\fBnet \fInet\fR \fBmask \fImask\fR" True if the IP address matches \fInet\fR with the specific netmask. May be qualified with \fBsrc\fR or \fBdst\fR. .IP "\fBnet \fInet\fR/\fIlen\fR" True if the IP address matches \fInet\fR a netmask \fIlen\fR bits wide. May be qualified with \fBsrc\fR or \fBdst\fR. .IP "\fBdst port \fIport\fR" True if the packet is ip/tcp or ip/udp and has a destination port value of \fIport\fP. The \fIport\fP can be a number or a name used in /etc/services (see .IR tcp (4P) and .IR udp (4P)). If a name is used, both the port number and protocol are checked. If a number or ambiguous name is used, only the port number is checked (e.g., \fBdst port 513\fR will print both tcp/login traffic and udp/who traffic, and \fBport domain\fR will print both tcp/domain and udp/domain traffic). .IP "\fBsrc port \fIport\fR" True if the packet has a source port value of \fIport\fP. .IP "\fBport \fIport\fR" True if either the source or destination port of the packet is \fIport\fP. Any of the above port expressions can be prepended with the keywords, \fBtcp\fP or \fBudp\fP, as in: .in +.5i .nf \fBtcp src port \fIport\fR .fi .in -.5i which matches only tcp packets whose source port is \fIport\fP. .IP "\fBless \fIlength\fR" True if the packet has a length less than or equal to \fIlength\fP. This is equivalent to: .in +.5i .nf \fBlen <= \fIlength\fP. .fi .in -.5i .IP "\fBgreater \fIlength\fR" True if the packet has a length greater than or equal to \fIlength\fP. This is equivalent to: .in +.5i .nf \fBlen >= \fIlength\fP. .fi .in -.5i .IP "\fBip proto \fIprotocol\fR" True if the packet is an ip packet (see .IR ip (4P)) of protocol type \fIprotocol\fP. \fIProtocol\fP can be a number or one of the names \fItcp\fP, \fIudp\fP or \fIicmp\fP. Note that the identifiers \fItcp\fP and \fIudp\fP are also keywords and must be escaped via backslash (\\), which is \\\\ in the C-shell. .IP "\fBip broadcast\fR" True if the packet is an IP broadcast packet. It checks for both the all-zeroes and all-ones broadcast conventions, and looks up the local subnet mask. .IP "\fBip multicast\fR" True if the packet is an IP multicast packet. .IP "\fBip\fR" Abbreviation for: .in +.5i .nf \fBether proto ip\fR .fi .IP "\fBtcp\fR, \fBudp\fR, \fBicmp\fR" Abbreviations for: .in +.5i .nf \fBip proto \fIp\fR .fi .in -.5i where \fIp\fR is one of the above protocols. .IP "\fIexpr relop expr\fR" True if the relation holds, where \fIrelop\fR is one of >, <, >=, <=, =, !=, and \fIexpr\fR is an arithmetic expression composed of integer constants (expressed in standard C syntax), the normal binary operators [+, -, *, /, &, |], a length operator, and special packet data accessors. To access data inside the packet, use the following syntax: .in +.5i .nf \fIproto\fB [ \fIexpr\fB : \fIsize\fB ]\fR .fi .in -.5i \fIProto\fR is one of \fBip, tcp, udp \fRor \fBicmp\fR, and indicates the protocol layer for the index operation. The byte offset, relative to the indicated protocol layer, is given by \fIexpr\fR. \fISize\fR is optional and indicates the number of bytes in the field of interest; it can be either one, two, or four, and defaults to one. The length operator, indicated by the keyword \fBlen\fP, gives the length of the packet. For example, `\fBether[0] & 1 != 0\fP' catches all multicast traffic. The expression `\fBip[0] & 0xf != 5\fP' catches all IP packets with options. The expression `\fBip[6:2] & 0x1fff = 0\fP' catches only unfragmented datagrams and frag zero of fragmented datagrams. This check is implicitly applied to the \fBtcp\fP and \fBudp\fP index operations. For instance, \fBtcp[0]\fP always means the first byte of the TCP \fIheader\fP, and never means the first byte of an intervening fragment. .LP Primitives may be combined using: .IP A parenthesized group of primitives and operators (parentheses are special to the Shell and must be escaped). .IP Negation (`\fB!\fP' or `\fBnot\fP'). .IP Concatenation (`\fB&&\fP' or `\fBand\fP'). .IP Alternation (`\fB||\fP' or `\fBor\fP'). .LP Negation has highest precedence. Alternation and concatenation have equal precedence and associate left to right. Note that explicit \fBand\fR tokens, not juxtaposition, are now required for concatenation. .LP If an identifier is given without a keyword, the most recent keyword is assumed. For example, .in +.5i .nf \fBnot host vs and ace\fR .fi .in -.5i is short for .in +.5i .nf \fBnot host vs and host ace\fR .fi .in -.5i which should not be confused with .in +.5i .nf \fBnot ( host vs or ace )\fR .fi .in -.5i .LP Expression arguments can be passed to ngrep as either a single argument or as multiple arguments, whichever is more convenient. Generally, if the expression contains Shell metacharacters, it is easier to pass it as a single, quoted argument. Multiple arguments are concatenated with spaces before being parsed. .SH DIAGNOSTICS Errors from .B ngrep, libpcap, and the .B GNU regex library are all output to stderr. .SH EXIT STATUS The ngrep utility exits with one of the following values: 0 One or more frames were matched. 1 No frames were matched. 2 An error occurred. 3+ Hell is freezing over, run! .SH AUTHOR Written by Jordan Ritter . .SH REPORTING BUGS Please report bugs to the ngrep's GitHub Issue Tracker, located at http://github.com/jpr5/ngrep/issues Non-bug, non-feature-request general feedback should be sent to the author directly by email. .SH NOTES ALL YOUR BASE ARE BELONG TO US. ngrep-1_47/install-sh0000755000175000017500000001273613154335003014207 0ustar romainromain#!/bin/sh # # install - install a program, script, or datafile # This comes from X11R5 (mit/util/scripts/install.sh). # # Copyright 1991 by the Massachusetts Institute of Technology # # Permission to use, copy, modify, distribute, and sell this software and its # documentation for any purpose is hereby granted without fee, provided that # the above copyright notice appear in all copies and that both that # copyright notice and this permission notice appear in supporting # documentation, and that the name of M.I.T. not be used in advertising or # publicity pertaining to distribution of the software without specific, # written prior permission. M.I.T. makes no representations about the # suitability of this software for any purpose. It is provided "as is" # without express or implied warranty. # # Calling this script install-sh is preferred over install.sh, to prevent # `make' implicit rules from creating a file called install from it # when there is no Makefile. # # This script is compatible with the BSD install script, but was written # from scratch. It can only install one file at a time, a restriction # shared with many OS's install programs. # set DOITPROG to echo to test this script # Don't use :- since 4.3BSD and earlier shells don't like it. doit="${DOITPROG-}" # put in absolute paths if you don't have them in your path; or use env. vars. mvprog="${MVPROG-mv}" cpprog="${CPPROG-cp}" chmodprog="${CHMODPROG-chmod}" chownprog="${CHOWNPROG-chown}" chgrpprog="${CHGRPPROG-chgrp}" stripprog="${STRIPPROG-strip}" rmprog="${RMPROG-rm}" mkdirprog="${MKDIRPROG-mkdir}" transformbasename="" transform_arg="" instcmd="$mvprog" chmodcmd="$chmodprog 0755" chowncmd="" chgrpcmd="" stripcmd="" rmcmd="$rmprog -f" mvcmd="$mvprog" src="" dst="" dir_arg="" while [ x"$1" != x ]; do case $1 in -c) instcmd="$cpprog" shift continue;; -d) dir_arg=true shift continue;; -m) chmodcmd="$chmodprog $2" shift shift continue;; -o) chowncmd="$chownprog $2" shift shift continue;; -g) chgrpcmd="$chgrpprog $2" shift shift continue;; -s) stripcmd="$stripprog" shift continue;; -t=*) transformarg=`echo $1 | sed 's/-t=//'` shift continue;; -b=*) transformbasename=`echo $1 | sed 's/-b=//'` shift continue;; *) if [ x"$src" = x ] then src=$1 else # this colon is to work around a 386BSD /bin/sh bug : dst=$1 fi shift continue;; esac done if [ x"$src" = x ] then echo "install: no input file specified" exit 1 else true fi if [ x"$dir_arg" != x ]; then dst=$src src="" if [ -d $dst ]; then instcmd=: chmodcmd="" else instcmd=mkdir fi else # Waiting for this to be detected by the "$instcmd $src $dsttmp" command # might cause directories to be created, which would be especially bad # if $src (and thus $dsttmp) contains '*'. if [ -f $src -o -d $src ] then true else echo "install: $src does not exist" exit 1 fi if [ x"$dst" = x ] then echo "install: no destination specified" exit 1 else true fi # If destination is a directory, append the input filename; if your system # does not like double slashes in filenames, you may need to add some logic if [ -d $dst ] then dst="$dst"/`basename $src` else true fi fi ## this sed command emulates the dirname command dstdir=`echo $dst | sed -e 's,[^/]*$,,;s,/$,,;s,^$,.,'` # Make sure that the destination directory exists. # this part is taken from Noah Friedman's mkinstalldirs script # Skip lots of stat calls in the usual case. if [ ! -d "$dstdir" ]; then defaultIFS=' ' IFS="${IFS-${defaultIFS}}" oIFS="${IFS}" # Some sh's can't handle IFS=/ for some reason. IFS='%' set - `echo ${dstdir} | sed -e 's@/@%@g' -e 's@^%@/@'` IFS="${oIFS}" pathcomp='' while [ $# -ne 0 ] ; do pathcomp="${pathcomp}${1}" shift if [ ! -d "${pathcomp}" ] ; then $mkdirprog "${pathcomp}" else true fi pathcomp="${pathcomp}/" done fi if [ x"$dir_arg" != x ] then $doit $instcmd $dst && if [ x"$chowncmd" != x ]; then $doit $chowncmd $dst; else true ; fi && if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd $dst; else true ; fi && if [ x"$stripcmd" != x ]; then $doit $stripcmd $dst; else true ; fi && if [ x"$chmodcmd" != x ]; then $doit $chmodcmd $dst; else true ; fi else # If we're going to rename the final executable, determine the name now. if [ x"$transformarg" = x ] then dstfile=`basename $dst` else dstfile=`basename $dst $transformbasename | sed $transformarg`$transformbasename fi # don't allow the sed command to completely eliminate the filename if [ x"$dstfile" = x ] then dstfile=`basename $dst` else true fi # Make a temp file name in the proper directory. dsttmp=$dstdir/#inst.$$# # Move or copy the file name to the temp name $doit $instcmd $src $dsttmp && trap "rm -f ${dsttmp}" 0 && # and set any options; do chmod last to preserve setuid bits # If any of these fail, we abort the whole thing. If we want to # ignore errors from any of these, just make sure not to ignore # errors from the above "$doit $instcmd $src $dsttmp" command. if [ x"$chowncmd" != x ]; then $doit $chowncmd $dsttmp; else true;fi && if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd $dsttmp; else true;fi && if [ x"$stripcmd" != x ]; then $doit $stripcmd $dsttmp; else true;fi && if [ x"$chmodcmd" != x ]; then $doit $chmodcmd $dsttmp; else true;fi && # Now rename the file to the real destination. $doit $rmcmd -f $dstdir/$dstfile && $doit $mvcmd $dsttmp $dstdir/$dstfile fi && exit 0 ngrep-1_47/INSTALL0000644000175000017500000000547613154335003013237 0ustar romainromain ================================================================= NOTE: These instructions are from the 2006 release of ngrep 1.45. They are sparse but will still give you the gist. Otherwise try ngrep from your favorite package manager! ================================================================= ngrep Installation Guide ------------------------ 1. Install the latest Packet Capture Library In orer to compile ngrep on any platform, the relevant packet capture (PCAP) client support library must be installed. On UNIX, this is called ``libpcap'' and can be installed either from source or from a distribution's particular package management system. Some distributions separate the library itself from its development headers (i.e. libpcap-devel), so make sure to install both if this is the case. On Windows, the client support library is called ``WinPcap Developer's Pack'' and should be unpacked inside the parent directory of the ngrep source tree. The latest versions can be found at: UNIX: http://tcpdump.org/release/ Win32: http://www.winpcap.org/ 2. Unpack the ngrep source Once the client packet capture client support library is installed, unpack the ngrep source to a directory. On Windows, this must be under the same parent directory as the WinPcap Developer's Pack. 3. Compile the ngrep program On UNIX, type the following from the root of the ngrep source tree: % ./configure && make On Windows, open the ``ngrep.sln'' file located in the ``win32'' subdirectory of the ngrep source tree using Visual Studio.NET. From there you should be able to Build the solution in either Debug or Release mode. Once this is done, copy the resulting ``ngrep.exe'' (located in either the ``Debug'' or ``Release'' subdirectory depending on compile configuration) into any directory in your path for easy usage (``c:\windows'', for instance). Please ignore the warnings associated with the GNU Regex library included in the ngrep source tree. 4. Install the PCAP kernel driver ngrep is a PCAP-based program and therefore requires the PCAP kernel driver to be installed before it will function properly. The PCAP Driver is already integrated into the vast majority of UNIX and Linux kernels released within the last ~20 years. The Windows Platform, however, does not come with an integrated PCAP kernel driver by default, so it is necessary to install one before ngrep will work. Getting Help ------------ On UNIX, if you still have problems compiling or are compiling on an unsupported OS, try playing with other build types -- i.e. if you have a BSD derived system, try the BSD build type. If you still have problems, please submit an issue on GitHub or feel free to email me, however please try to help yourself first and search Google for possible answers before reaching out. Jordan Ritter ngrep-1_47/CHANGES0000644000175000017500000002523013154335003013167 0ustar romainromainv1.47 o Fix "no VLAN support for XXX"-related problems o Fix truncated/garbled output (e.g. SIP over SLL/Linux cooked sockets) o Change exit behavior to match BSD & GNU grep (see manpage) o Add Solaris IPnet support o Update to use 32bit values where relevant o Emit frame # in header, useful for reference/analysis o Emit total received, matched upon exit (dropped unreliable PCAP stats) o Import debian patches related to autotools, manpage, and compilation on other platforms o Fix build clean/distclean when not linked against provided GNU regex o Fix build --enable/--disable flag processing o Fix building under MS VS2012 / Win32 o Update to latest autotools (2017) v1.46.1 o actual bugfix for the VLAN parsing issue. prior version 1.46 expanded the BPF filter to include IPv4/6 traffic, but the offset calculation forgot to account for the variable presence of VLAN headers. now ngrep detects VLAN frames in every packet and adjusts the offset on the fly. v1.46 o configure.in: re-organized, in part to sync with downstream patches (which were never sent upstream) o configure.in: removed included PCRE library, now builds against system version when specified (default is included GNU Regex) o configure.in: fixed duplicate PCAP header check, which broke with the release of libpcap 1.0 o configure.in: prefixed all tack-on autoconf variables from _FOO -> EXTRA_FOO o Makefile.in: capitulated to Debian: use tar.gz instead of tar.bz2 :-( o ngrep.c: Call setlocale to make isprint() work based on current locale. See https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=307496++ o include tcpkill functionality (-K), a long-standing downstream patch under Debian o updated to latest autoconf o updated copyrights to 2014 v1.45 o fixed bug where setting the snaplen smaller than the minimum necessary to read the full headres would cause garbage to be fed into the pattern matcher o fixed unreported bug in IPv6/TCP packet length calculation o relocated the privilege-dropping routine to be invoked right before entering the packet processing loop, to prevent interference with necessary permissions to read or write dumpfiles/etc. o fixed integer overflow with the snaplen that resulted from an implicit signed/unsigned conversion o minor change to compensate for some broken compiler optimizers o fixed double-free race condition during ngrep termination o reworked packet length calculation in the main processing loop, improving performance and readability o simplified regex build logic in configure and Makefile o updated Win32 version to use config.h for preprocessor definitions instead of the Visual Studio project files, making manual tweaking and config of ngrep for Win32 consistent with *NIX and more obvious o changed third-party Makefiles to properly clean up after themselves o added support for radiotap (IEEE802_11_RADIO) o changed ``-s 0'' invocation to mimic the equivalent of tcpdump v1.44 o added post-config section to configure: emit important config option settings that weren't previously indicated o for BSD platforms, only emit pcap_restart warning from configure if ``--disable-pcap-restart'' hasn't been specified o added IPv6 and ICMPv6 support (all platforms); disabled by default for common case where libpcap wasn't compiled with IPv6 support o added support for displaying protocol number (``-N''), useful for when observing raw packets o added support for new display method ``single'', similar to ``byline'' but both header and data occupy one single line o introduced multiple levels of quiet (``-q''); the more it is specified the more quiet ngrep becomes o reorganization of some internal support headers and core code to eliminate redundancy, improve readability and efficiency, and support new features o changed all integer types to be bit- and sign-explicit v1.43 o healed the win32 code fork: ngrep now builds from the same source tree for all platforms including Windows o re-wrote the privilege revocation logic after problems were reported with the SPC version, and removed non-root drop_privs capability altogether o fix off-by-one bug which caused ngrep to exit 1 packet early when ``-A'' as invoked o Fixed problematic configtest for old broken-redhat-glibc UDP header o ngrep now sets a pcap filter "ip" by default, if one is not specified o header offset fix to 802.11 processing o support IGMP and Raw (unknown IP protocol) type packets o support for latest versions of libpcap (0.8.3) and winpcap (3.1 beta 4) o updated configure to autoconf 2.59, and config.guess and config.sub to latest versions o updated PCRE from 3.4 to 5.0 o and various minor changes and updates to improve ngrep v1.42 o rewrote the entire configure.in/config.h.in to autoconf 2.57 to be more consistent with normal autoconf'd programs. corrects bugs around packaging impediments and typos o improved privilege dropping code and added more options to configure to govern its behaviour o added flag to turn off privilege revocation logic o added multiline match as default and ability to enforce previous default single-line match (bugfix + feature) o added ability to read bpf filter expression from file o added ability to force the column width to a certain size o added two new output modes: ``byline'', whose output respects embedded carriage returns (useful for http dumps), and ``none'', which prints out each dump as a single line no matter what o added ability to specify alternate nonprintable character (default is ``.'') o made ``-q'' effects more consistent and usable for scenarios where ``-I'' and/or ``-O'' are being employed o documentation updated v1.41 o added -S (set limitlen) o added LOOP and SLL tests for portability/old libpcap'en o added configure --safe-user and dropprivs code o added TCP ECN congestion header recognition o improved support for a few OSes o relaxed some restrictions in the license (COPYRIGHT -> LICENSE) o 802.11 support v1.40.1 o MacOS X support o ISDN (SLL) support o OpenBSD tun device support o updated configure.in to support specifying pcap directory o updated config.sub and config.guess o added scripts/multi.pl, parallel ngrep perl script o very minor change to documentation v1.40 o license change, amends the BSD advertising clause o fixed bug from not considering caplen in payload length calculations o added -s (set bpf caplen) o fixed header include for linux glibc 2.2 (time.h wasn't being included) v1.39.2 o typographical error, -p works now v1.39.1 o added in AIX includes o added BSD* includes for display updates o added -p (don't go into promiscuous mode) v1.39 o in standard match mode, the display now updates when window sizes change o configure now gives the user the option to compile with the pcre library, which is more license-friendly (albeit slower) o fixed minor bug in date printing with -t o added configure option '--without-restart', which will remove the pcap restart API call. Newer versions of libpcap don't need it, and on certain platforms the API call segfaults o win32: compiled with winpcap's pcap.h, which apparently breaks the pcap standard and introduces its own data link layer types. fixes the 'unsupported interface' error folks sometimes got when used with a 100bT adapter v1.38 o binary matching o windows compilation support o 64-bit clean patch to regex.c o dump and replay pcap_dump files o officially licensed under the BSD license o normal and diff/delta timestamps v1.37 o added FDDI support v1.36 o added -l (line buffer stdout) o a few optimizations were made to shave off some cpu cycles spent on processing each packet o fixed bug where the blank regex algorithm wasn't even being used o fixed bug in blank regex algorithm that was preventing '-n' from working o change to compile on LinuxPPC o change to nix potential warnings on other OSes o change to not exit if pcap_lookupnet fails v1.35 o appears that the release of 1.34 had only one of the match optimizations: somehow only the tcp match was updated; udp change was omitted. fixed o moved -v (version) to -V o added -v (grep -v), invert match o added -d lo (null linktype) o added ability to match proto icmp o updated configure.in to handle old installations of pcap more gracefully (i.e. continue on by adding the necessary defines and just gripe) v1.34 o merged in patch from Andrew W. Flury for hex printing, made minor modification to patch to not print off the end of the buffer o added an optimization for the case where no regex was specified; should account for a little speed up v1.33 o fragment changes, this should be it v1.32 o switched around regex -w/-i logic o fragment bugfixes v1.31 o added -A (match after) o Makefile.in changes o configure.in changes for solaris o added manpage (ngrep.8) v1.30 o bugfix: wasn't malloc'ing enough for word_regex o bugfix: case-insensitive was tolower()ing the word_regex itself v1.29 o added -e (show empty) o one or two safe, preemptive changes catching possible int overflows v1.28 o added -n o no required arguments anymore o regex's are not required anymore, can just be bpf logic o probably a bugfix or two ngrep-1_47/config.h.in0000644000175000017500000000176113154335003014222 0ustar romainromain/* * Copyright (c) 2017 Jordan Ritter * * Please refer to the LICENSE file for more information. * */ #define USE_PCRE @USE_PCRE@ #define USE_IPv6 @USE_IPv6@ #define USE_TCPKILL @USE_TCPKILL@ #define USE_VLAN_HACK @USE_VLAN_HACK@ #define HAVE_DLT_RAW @HAVE_DLT_RAW@ #define HAVE_DLT_PFLOG @HAVE_DLT_PFLOG@ #define HAVE_DLT_LOOP @HAVE_DLT_LOOP@ #define HAVE_DLT_LINUX_SLL @HAVE_DLT_LINUX_SLL@ #define HAVE_DLT_IEEE802_11 @HAVE_DLT_IEEE802_11@ #define HAVE_DLT_IEEE802_11_RADIO @HAVE_DLT_IEEE802_11_RADIO@ #define HAVE_DLT_IPNET @HAVE_DLT_IPNET@ #define USE_PCAP_RESTART @USE_PCAP_RESTART@ #if USE_PCAP_RESTART #define PCAP_RESTART_FUNC @PCAP_RESTART_FUNC@ extern void PCAP_RESTART_FUNC(); #endif #define USE_DROPPRIVS @USE_DROPPRIVS@ #define DROPPRIVS_USER @DROPPRIVS_USER@