added ITA Scanner IMC/IMV pair which detects open server ports on TNC clients
This commit is contained in:
parent
956759533f
commit
d9cdab9249
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@ -134,6 +134,8 @@ ARG_ENABL_SET([tnccs-20], [enable TNCCS 2.0 protocol module.])
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ARG_ENABL_SET([tnccs-dynamic], [enable dynamic TNCCS protocol discovery module.])
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ARG_ENABL_SET([imc-test], [enable IMC test module.])
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ARG_ENABL_SET([imv-test], [enable IMV test module.])
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ARG_ENABL_SET([imc-scanner], [enable IMC port scanner module.])
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ARG_ENABL_SET([imv-scanner], [enable IMV port scanner module.])
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ARG_DISBL_SET([kernel-netlink], [disable the netlink kernel interface.])
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ARG_ENABL_SET([kernel-pfkey], [enable the PF_KEY kernel interface.])
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ARG_ENABL_SET([kernel-pfroute], [enable the PF_ROUTE kernel interface.])
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@ -242,7 +244,7 @@ if test x$eap_tls = xtrue -o x$eap_ttls = xtrue -o x$eap_peap = xtrue; then
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tls=true;
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fi
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if test x$imc_test = xtrue -o x$imv_test = xtrue; then
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if test x$imc_test = xtrue -o x$imv_test = xtrue -o x$imc_scanner = xtrue -o x$imv_scanner = xtrue; then
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imcv=true;
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fi
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@ -910,6 +912,8 @@ AM_CONDITIONAL(USE_TNCCS_20, test x$tnccs_20 = xtrue)
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AM_CONDITIONAL(USE_TNCCS_DYNAMIC, test x$tnccs_dynamic = xtrue)
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AM_CONDITIONAL(USE_IMC_TEST, test x$imc_test = xtrue)
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AM_CONDITIONAL(USE_IMV_TEST, test x$imv_test = xtrue)
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AM_CONDITIONAL(USE_IMC_SCANNER, test x$imc_scanner = xtrue)
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AM_CONDITIONAL(USE_IMV_SCANNER, test x$imv_scanner = xtrue)
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AM_CONDITIONAL(USE_SOCKET_DEFAULT, test x$socket_default = xtrue)
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AM_CONDITIONAL(USE_SOCKET_RAW, test x$socket_raw = xtrue)
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AM_CONDITIONAL(USE_SOCKET_DYNAMIC, test x$socket_dynamic = xtrue)
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@ -1041,6 +1045,8 @@ AC_OUTPUT(
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src/libimcv/Makefile
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src/libimcv/plugins/imc_test/Makefile
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src/libimcv/plugins/imv_test/Makefile
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src/libimcv/plugins/imc_scanner/Makefile
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src/libimcv/plugins/imv_scanner/Makefile
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src/pluto/Makefile
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src/pluto/plugins/xauth/Makefile
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src/whack/Makefile
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@ -26,3 +26,10 @@ if USE_IMV_TEST
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SUBDIRS += plugins/imv_test
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endif
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if USE_IMC_SCANNER
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SUBDIRS += plugins/imc_scanner
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endif
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if USE_IMV_SCANNER
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SUBDIRS += plugins/imv_scanner
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endif
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@ -0,0 +1,16 @@
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INCLUDES = -I$(top_srcdir)/src/libstrongswan -I$(top_srcdir)/src/libtncif \
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-I$(top_srcdir)/src/libimcv
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AM_CFLAGS = -rdynamic
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plugin_LTLIBRARIES = libstrongswan-imc-scanner.la
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libstrongswan_imc_scanner_la_LIBADD = $(top_builddir)/src/libimcv/libimcv.la \
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$(top_builddir)/src/libstrongswan/libstrongswan.la
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libstrongswan_imc_scanner_la_SOURCES = imc_scanner.c \
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imc_scanner_state.h imc_scanner_state.c
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libstrongswan_imc_scanner_la_LDFLAGS = -module -avoid-version
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@ -0,0 +1,361 @@
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/*
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* Copyright (C) 2011 Andreas Steffen, HSR Hochschule fuer Technik Rapperswil
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*/
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#include "imc_scanner_state.h"
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#include <imc/imc_agent.h>
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#include <pa_tnc/pa_tnc_msg.h>
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#include <ietf/ietf_attr.h>
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#include <ietf/ietf_attr_pa_tnc_error.h>
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#include <ietf/ietf_attr_port_filter.h>
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#include <tncif_names.h>
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#include <tncif_pa_subtypes.h>
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#include <pen/pen.h>
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#include <utils/lexparser.h>
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#include <debug.h>
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#include <stdio.h>
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/* IMC definitions */
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static const char imc_name[] = "Scanner";
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#define IMC_VENDOR_ID PEN_ITA
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#define IMC_SUBTYPE PA_SUBTYPE_ITA_SCANNER
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static imc_agent_t *imc_scanner;
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/**
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* see section 3.7.1 of TCG TNC IF-IMC Specification 1.2
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*/
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TNC_Result TNC_IMC_Initialize(TNC_IMCID imc_id,
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TNC_Version min_version,
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TNC_Version max_version,
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TNC_Version *actual_version)
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{
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if (imc_scanner)
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{
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DBG1(DBG_IMC, "IMC \"%s\" has already been initialized", imc_name);
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return TNC_RESULT_ALREADY_INITIALIZED;
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}
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imc_scanner = imc_agent_create(imc_name, IMC_VENDOR_ID, IMC_SUBTYPE,
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imc_id, actual_version);
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if (!imc_scanner)
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{
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return TNC_RESULT_FATAL;
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}
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if (min_version > TNC_IFIMC_VERSION_1 || max_version < TNC_IFIMC_VERSION_1)
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{
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DBG1(DBG_IMC, "no common IF-IMC version");
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return TNC_RESULT_NO_COMMON_VERSION;
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}
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return TNC_RESULT_SUCCESS;
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}
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/**
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* see section 3.7.2 of TCG TNC IF-IMC Specification 1.2
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*/
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TNC_Result TNC_IMC_NotifyConnectionChange(TNC_IMCID imc_id,
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TNC_ConnectionID connection_id,
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TNC_ConnectionState new_state)
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{
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imc_state_t *state;
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if (!imc_scanner)
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{
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DBG1(DBG_IMC, "IMC \"%s\" has not been initialized", imc_name);
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return TNC_RESULT_NOT_INITIALIZED;
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}
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switch (new_state)
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{
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case TNC_CONNECTION_STATE_CREATE:
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state = imc_scanner_state_create(connection_id);
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return imc_scanner->create_state(imc_scanner, state);
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case TNC_CONNECTION_STATE_DELETE:
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return imc_scanner->delete_state(imc_scanner, connection_id);
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default:
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return imc_scanner->change_state(imc_scanner, connection_id,
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new_state, NULL);
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}
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}
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/**
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* Determine all TCP and UDP server sockets listening on physical interfaces
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*/
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static bool do_netstat(ietf_attr_port_filter_t *attr)
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{
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FILE *file;
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char buf[BUF_LEN];
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chunk_t line, token;
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int n = 0;
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bool success = FALSE;
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/* Open a pipe stream for reading the output of the netstat commmand */
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file = popen("/bin/netstat -n -l -4 -6 --inet", "r");
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if (!file)
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{
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DBG1(DBG_IMC, "Failed to run netstat command");
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return FALSE;
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}
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/* Read the output a line at a time */
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while (fgets(buf, BUF_LEN-1, file))
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{
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u_char *pos;
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u_int8_t new_protocol, protocol;
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u_int16_t new_port, port;
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int i;
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enumerator_t *enumerator;
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bool allowed, found = FALSE;
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DBG2(DBG_IMC, "%.*s", strlen(buf)-1, buf);
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if (n++ < 2)
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{
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/* skip the first two header lines */
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continue;
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}
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line = chunk_create(buf, strlen(buf));
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/* Extract the IP protocol type */
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if (!extract_token(&token, ' ', &line))
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{
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DBG1(DBG_IMC, "Protocol field in netstat output not found");
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goto end;
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}
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if (match("tcp", &token) || match("tcp6", &token))
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{
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new_protocol = IPPROTO_TCP;
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}
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else if (match("udp", &token) || match("udp6", &token))
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{
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new_protocol = IPPROTO_UDP;
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}
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else
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{
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DBG1(DBG_IMC, "Skipped unknown IP protocol in netstat output");
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continue;
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}
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/* Skip the Recv-Q and Send-Q fields */
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for (i = 0; i < 3; i++)
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{
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if (!eat_whitespace(&line) || !extract_token(&token, ' ', &line))
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{
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token = chunk_empty;
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break;
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}
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}
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if (token.len == 0)
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{
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DBG1(DBG_IMC, "Local Address field in netstat output not found");
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goto end;
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}
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/* Find the local port appended to the local address */
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pos = token.ptr + token.len;
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while (*--pos != ':' && --token.len);
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if (*pos != ':')
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{
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DBG1(DBG_IMC, "Local port field in netstat output not found");
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goto end;
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}
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/* convert the port string to an integer */
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new_port = atoi(pos+1);
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/* check if the there is already a port entry */
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enumerator = attr->create_port_enumerator(attr);
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while (enumerator->enumerate(enumerator, &allowed, &protocol, &port))
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{
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if (new_port == port && new_protocol == protocol)
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{
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found = TRUE;
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}
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}
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enumerator->destroy(enumerator);
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/* Skip the duplicate port entry */
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if (found)
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{
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continue;
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}
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/* Add new port entry */
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attr->add_port(attr, FALSE, new_protocol, new_port);
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}
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/* Successfully completed the parsing of the netstat output */
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success = TRUE;
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end:
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/* Close the pipe stream */
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pclose(file);
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return success;
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}
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static TNC_Result send_message(TNC_ConnectionID connection_id)
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{
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pa_tnc_msg_t *msg;
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pa_tnc_attr_t *attr;
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ietf_attr_port_filter_t *attr_port_filter;
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TNC_Result result;
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attr = ietf_attr_port_filter_create();
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attr->set_noskip_flag(attr, TRUE);
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attr_port_filter = (ietf_attr_port_filter_t*)attr;
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if (!do_netstat(attr_port_filter))
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{
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attr->destroy(attr);
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return TNC_RESULT_FATAL;
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}
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msg = pa_tnc_msg_create();
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msg->add_attribute(msg, attr);
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msg->build(msg);
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result = imc_scanner->send_message(imc_scanner, connection_id,
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msg->get_encoding(msg));
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msg->destroy(msg);
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return result;
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}
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/**
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* see section 3.7.3 of TCG TNC IF-IMC Specification 1.2
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*/
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TNC_Result TNC_IMC_BeginHandshake(TNC_IMCID imc_id,
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TNC_ConnectionID connection_id)
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{
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if (!imc_scanner)
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{
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DBG1(DBG_IMC, "IMC \"%s\" has not been initialized", imc_name);
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return TNC_RESULT_NOT_INITIALIZED;
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}
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return send_message(connection_id);
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}
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/**
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* see section 3.7.4 of TCG TNC IF-IMC Specification 1.2
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*/
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TNC_Result TNC_IMC_ReceiveMessage(TNC_IMCID imc_id,
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TNC_ConnectionID connection_id,
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TNC_BufferReference msg,
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TNC_UInt32 msg_len,
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TNC_MessageType msg_type)
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{
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pa_tnc_msg_t *pa_tnc_msg;
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pa_tnc_attr_t *attr;
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enumerator_t *enumerator;
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TNC_Result result;
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bool fatal_error = FALSE;
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if (!imc_scanner)
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{
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DBG1(DBG_IMC, "IMC \"%s\" has not been initialized", imc_name);
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return TNC_RESULT_NOT_INITIALIZED;
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}
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/* parse received PA-TNC message and automatically handle any errors */
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result = imc_scanner->receive_message(imc_scanner, connection_id,
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chunk_create(msg, msg_len), msg_type,
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&pa_tnc_msg);
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/* no parsed PA-TNC attributes available if an error occurred */
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if (!pa_tnc_msg)
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{
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return result;
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}
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/* analyze PA-TNC attributes */
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enumerator = pa_tnc_msg->create_attribute_enumerator(pa_tnc_msg);
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while (enumerator->enumerate(enumerator, &attr))
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{
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ietf_attr_pa_tnc_error_t *error_attr;
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pa_tnc_error_code_t error_code;
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chunk_t msg_info, attr_info;
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if (attr->get_vendor_id(attr) != PEN_IETF &&
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attr->get_type(attr) != IETF_ATTR_PA_TNC_ERROR)
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{
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continue;
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}
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error_attr = (ietf_attr_pa_tnc_error_t*)attr;
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error_code = error_attr->get_error_code(error_attr);
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msg_info = error_attr->get_msg_info(error_attr);
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DBG1(DBG_IMC, "received PA-TNC error '%N' concerning message %#B",
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pa_tnc_error_code_names, error_code, &msg_info);
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switch (error_code)
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{
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case PA_ERROR_ATTR_TYPE_NOT_SUPPORTED:
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attr_info = error_attr->get_attr_info(error_attr);
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DBG1(DBG_IMC, " unsupported attribute %#B", &attr_info);
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break;
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default:
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break;
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}
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fatal_error = TRUE;
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}
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enumerator->destroy(enumerator);
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pa_tnc_msg->destroy(pa_tnc_msg);
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/* if no error occurred then always return the same response */
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return fatal_error ? TNC_RESULT_FATAL : send_message(connection_id);
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}
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/**
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* see section 3.7.5 of TCG TNC IF-IMC Specification 1.2
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*/
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TNC_Result TNC_IMC_BatchEnding(TNC_IMCID imc_id,
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TNC_ConnectionID connection_id)
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{
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if (!imc_scanner)
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{
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DBG1(DBG_IMC, "IMC \"%s\" has not been initialized", imc_name);
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return TNC_RESULT_NOT_INITIALIZED;
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}
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return TNC_RESULT_SUCCESS;
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}
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/**
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* see section 3.7.6 of TCG TNC IF-IMC Specification 1.2
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*/
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TNC_Result TNC_IMC_Terminate(TNC_IMCID imc_id)
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{
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if (!imc_scanner)
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{
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DBG1(DBG_IMC, "IMC \"%s\" has not been initialized", imc_name);
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return TNC_RESULT_NOT_INITIALIZED;
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}
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imc_scanner->destroy(imc_scanner);
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imc_scanner = NULL;
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return TNC_RESULT_SUCCESS;
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}
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/**
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* see section 4.2.8.1 of TCG TNC IF-IMC Specification 1.2
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*/
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TNC_Result TNC_IMC_ProvideBindFunction(TNC_IMCID imc_id,
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TNC_TNCC_BindFunctionPointer bind_function)
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{
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if (!imc_scanner)
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{
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DBG1(DBG_IMC, "IMC \"%s\" has not been initialized", imc_name);
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return TNC_RESULT_NOT_INITIALIZED;
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}
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return imc_scanner->bind_functions(imc_scanner, bind_function);
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}
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@ -0,0 +1,82 @@
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/*
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* Copyright (C) 2011 Andreas Steffen, HSR Hochschule fuer Technik Rapperswil
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
|
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
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*
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* This program is distributed in the hope that it will be useful, but
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* 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.
|
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*/
|
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#include "imc_scanner_state.h"
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#include <debug.h>
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typedef struct private_imc_scanner_state_t private_imc_scanner_state_t;
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/**
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* Private data of an imc_scanner_state_t object.
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*/
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struct private_imc_scanner_state_t {
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/**
|
||||
* Public members of imc_scanner_state_t
|
||||
*/
|
||||
imc_scanner_state_t public;
|
||||
|
||||
/**
|
||||
* TNCCS connection ID
|
||||
*/
|
||||
TNC_ConnectionID connection_id;
|
||||
|
||||
/**
|
||||
* TNCCS connection state
|
||||
*/
|
||||
TNC_ConnectionState state;
|
||||
};
|
||||
|
||||
METHOD(imc_state_t, get_connection_id, TNC_ConnectionID,
|
||||
private_imc_scanner_state_t *this)
|
||||
{
|
||||
return this->connection_id;
|
||||
}
|
||||
|
||||
METHOD(imc_state_t, change_state, void,
|
||||
private_imc_scanner_state_t *this, TNC_ConnectionState new_state)
|
||||
{
|
||||
this->state = new_state;
|
||||
}
|
||||
|
||||
METHOD(imc_state_t, destroy, void,
|
||||
private_imc_scanner_state_t *this)
|
||||
{
|
||||
free(this);
|
||||
}
|
||||
|
||||
/**
|
||||
* Described in header.
|
||||
*/
|
||||
imc_state_t *imc_scanner_state_create(TNC_ConnectionID connection_id)
|
||||
{
|
||||
private_imc_scanner_state_t *this;
|
||||
|
||||
INIT(this,
|
||||
.public = {
|
||||
.interface = {
|
||||
.get_connection_id = _get_connection_id,
|
||||
.change_state = _change_state,
|
||||
.destroy = _destroy,
|
||||
},
|
||||
},
|
||||
.state = TNC_CONNECTION_STATE_CREATE,
|
||||
.connection_id = connection_id,
|
||||
);
|
||||
|
||||
return &this->public.interface;
|
||||
}
|
||||
|
||||
|
|
@ -0,0 +1,47 @@
|
|||
/*
|
||||
* Copyright (C) 2011 Andreas Steffen, HSR Hochschule fuer Technik Rapperswil
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify it
|
||||
* under the terms of the GNU General Public License as published by the
|
||||
* Free Software Foundation; either version 2 of the License, or (at your
|
||||
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
|
||||
*
|
||||
* 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.
|
||||
*/
|
||||
|
||||
/**
|
||||
*
|
||||
* @defgroup imc_scanner_state_t imc_scanner_state
|
||||
* @{ @ingroup imc_scanner_state
|
||||
*/
|
||||
|
||||
#ifndef IMC_SCANNER_STATE_H_
|
||||
#define IMC_SCANNER_STATE_H_
|
||||
|
||||
#include <imc/imc_state.h>
|
||||
#include <library.h>
|
||||
|
||||
typedef struct imc_scanner_state_t imc_scanner_state_t;
|
||||
|
||||
/**
|
||||
* Internal state of an imc_scanner_t connection instance
|
||||
*/
|
||||
struct imc_scanner_state_t {
|
||||
|
||||
/**
|
||||
* imc_state_t interface
|
||||
*/
|
||||
imc_state_t interface;
|
||||
};
|
||||
|
||||
/**
|
||||
* Create an imc_scanner_state_t instance
|
||||
*
|
||||
* @param id connection ID
|
||||
*/
|
||||
imc_state_t* imc_scanner_state_create(TNC_ConnectionID id);
|
||||
|
||||
#endif /** IMC_SCANNER_STATE_H_ @}*/
|
|
@ -0,0 +1,266 @@
|
|||
/*
|
||||
* Copyright (C) 2011 Andreas Steffen, HSR Hochschule fuer Technik Rapperswil
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify it
|
||||
* under the terms of the GNU General Public License as published by the
|
||||
* Free Software Foundation; either version 2 of the License, or (at your
|
||||
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
|
||||
*
|
||||
* 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.
|
||||
*/
|
||||
|
||||
#include "imv_scanner_state.h"
|
||||
|
||||
#include <imv/imv_agent.h>
|
||||
#include <pa_tnc/pa_tnc_msg.h>
|
||||
#include <ietf/ietf_attr.h>
|
||||
#include <ietf/ietf_attr_pa_tnc_error.h>
|
||||
#include <ietf/ietf_attr_port_filter.h>
|
||||
|
||||
#include <tncif_names.h>
|
||||
#include <tncif_pa_subtypes.h>
|
||||
|
||||
#include <pen/pen.h>
|
||||
#include <debug.h>
|
||||
|
||||
/* IMV definitions */
|
||||
|
||||
static const char imv_name[] = "Scanner";
|
||||
|
||||
#define IMV_VENDOR_ID PEN_ITA
|
||||
#define IMV_SUBTYPE PA_SUBTYPE_ITA_SCANNER
|
||||
|
||||
static imv_agent_t *imv_scanner;
|
||||
|
||||
/**
|
||||
* see section 3.7.1 of TCG TNC IF-IMV Specification 1.2
|
||||
*/
|
||||
TNC_Result TNC_IMV_Initialize(TNC_IMVID imv_id,
|
||||
TNC_Version min_version,
|
||||
TNC_Version max_version,
|
||||
TNC_Version *actual_version)
|
||||
{
|
||||
if (imv_scanner)
|
||||
{
|
||||
DBG1(DBG_IMV, "IMV \"%s\" has already been initialized", imv_name);
|
||||
return TNC_RESULT_ALREADY_INITIALIZED;
|
||||
}
|
||||
imv_scanner = imv_agent_create(imv_name, IMV_VENDOR_ID, IMV_SUBTYPE,
|
||||
imv_id, actual_version);
|
||||
if (!imv_scanner)
|
||||
{
|
||||
return TNC_RESULT_FATAL;
|
||||
}
|
||||
if (min_version > TNC_IFIMV_VERSION_1 || max_version < TNC_IFIMV_VERSION_1)
|
||||
{
|
||||
DBG1(DBG_IMV, "no common IF-IMV version");
|
||||
return TNC_RESULT_NO_COMMON_VERSION;
|
||||
}
|
||||
return TNC_RESULT_SUCCESS;
|
||||
}
|
||||
|
||||
/**
|
||||
* see section 3.7.2 of TCG TNC IF-IMV Specification 1.2
|
||||
*/
|
||||
TNC_Result TNC_IMV_NotifyConnectionChange(TNC_IMVID imv_id,
|
||||
TNC_ConnectionID connection_id,
|
||||
TNC_ConnectionState new_state)
|
||||
{
|
||||
imv_state_t *state;
|
||||
|
||||
if (!imv_scanner)
|
||||
{
|
||||
DBG1(DBG_IMV, "IMV \"%s\" has not been initialized", imv_name);
|
||||
return TNC_RESULT_NOT_INITIALIZED;
|
||||
}
|
||||
switch (new_state)
|
||||
{
|
||||
case TNC_CONNECTION_STATE_CREATE:
|
||||
state = imv_scanner_state_create(connection_id);
|
||||
return imv_scanner->create_state(imv_scanner, state);
|
||||
case TNC_CONNECTION_STATE_DELETE:
|
||||
return imv_scanner->delete_state(imv_scanner, connection_id);
|
||||
default:
|
||||
return imv_scanner->change_state(imv_scanner, connection_id,
|
||||
new_state, NULL);
|
||||
}
|
||||
}
|
||||
|
||||
static TNC_Result send_message(TNC_ConnectionID connection_id)
|
||||
{
|
||||
pa_tnc_msg_t *msg;
|
||||
pa_tnc_attr_t *attr;
|
||||
TNC_Result result;
|
||||
|
||||
msg = pa_tnc_msg_create();
|
||||
msg->build(msg);
|
||||
result = imv_scanner->send_message(imv_scanner, connection_id,
|
||||
msg->get_encoding(msg));
|
||||
msg->destroy(msg);
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
/**
|
||||
* see section 3.7.3 of TCG TNC IF-IMV Specification 1.2
|
||||
*/
|
||||
TNC_Result TNC_IMV_ReceiveMessage(TNC_IMVID imv_id,
|
||||
TNC_ConnectionID connection_id,
|
||||
TNC_BufferReference msg,
|
||||
TNC_UInt32 msg_len,
|
||||
TNC_MessageType msg_type)
|
||||
{
|
||||
pa_tnc_msg_t *pa_tnc_msg;
|
||||
pa_tnc_attr_t *attr;
|
||||
imv_state_t *state;
|
||||
enumerator_t *enumerator;
|
||||
TNC_Result result;
|
||||
bool fatal_error = FALSE;
|
||||
|
||||
if (!imv_scanner)
|
||||
{
|
||||
DBG1(DBG_IMV, "IMV \"%s\" has not been initialized", imv_name);
|
||||
return TNC_RESULT_NOT_INITIALIZED;
|
||||
}
|
||||
|
||||
/* get current IMV state */
|
||||
if (!imv_scanner->get_state(imv_scanner, connection_id, &state))
|
||||
{
|
||||
return TNC_RESULT_FATAL;
|
||||
}
|
||||
|
||||
/* parse received PA-TNC message and automatically handle any errors */
|
||||
result = imv_scanner->receive_message(imv_scanner, connection_id,
|
||||
chunk_create(msg, msg_len), msg_type,
|
||||
&pa_tnc_msg);
|
||||
|
||||
/* no parsed PA-TNC attributes available if an error occurred */
|
||||
if (!pa_tnc_msg)
|
||||
{
|
||||
return result;
|
||||
}
|
||||
|
||||
/* analyze PA-TNC attributes */
|
||||
enumerator = pa_tnc_msg->create_attribute_enumerator(pa_tnc_msg);
|
||||
while (enumerator->enumerate(enumerator, &attr))
|
||||
{
|
||||
if (attr->get_vendor_id(attr) != PEN_IETF)
|
||||
{
|
||||
continue;
|
||||
}
|
||||
|
||||
if (attr->get_type(attr) == IETF_ATTR_PA_TNC_ERROR)
|
||||
{
|
||||
ietf_attr_pa_tnc_error_t *error_attr;
|
||||
pa_tnc_error_code_t error_code;
|
||||
chunk_t msg_info, attr_info;
|
||||
|
||||
error_attr = (ietf_attr_pa_tnc_error_t*)attr;
|
||||
error_code = error_attr->get_error_code(error_attr);
|
||||
msg_info = error_attr->get_msg_info(error_attr);
|
||||
|
||||
DBG1(DBG_IMV, "received PA-TNC error '%N' concerning message %#B",
|
||||
pa_tnc_error_code_names, error_code, &msg_info);
|
||||
switch (error_code)
|
||||
{
|
||||
case PA_ERROR_ATTR_TYPE_NOT_SUPPORTED:
|
||||
attr_info = error_attr->get_attr_info(error_attr);
|
||||
DBG1(DBG_IMV, " unsupported attribute %#B", &attr_info);
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
fatal_error = TRUE;
|
||||
}
|
||||
else if (attr->get_type(attr) == IETF_ATTR_PORT_FILTER)
|
||||
{
|
||||
ietf_attr_port_filter_t *attr_port_filter;
|
||||
enumerator_t *enumerator;
|
||||
bool blocked;
|
||||
u_int8_t protocol;
|
||||
u_int16_t port;
|
||||
|
||||
attr_port_filter = (ietf_attr_port_filter_t*)attr;
|
||||
enumerator = attr_port_filter->create_port_enumerator(attr_port_filter);
|
||||
while (enumerator->enumerate(enumerator, &blocked, &protocol, &port))
|
||||
{
|
||||
DBG2(DBG_IMV, "%s: %s %5u", blocked ? "blocked" : "allowed",
|
||||
(protocol == IPPROTO_TCP) ? "tcp" : "udp", port);
|
||||
}
|
||||
enumerator->destroy(enumerator);
|
||||
}
|
||||
}
|
||||
enumerator->destroy(enumerator);
|
||||
pa_tnc_msg->destroy(pa_tnc_msg);
|
||||
|
||||
if (fatal_error)
|
||||
{
|
||||
state->set_recommendation(state,
|
||||
TNC_IMV_ACTION_RECOMMENDATION_NO_RECOMMENDATION,
|
||||
TNC_IMV_EVALUATION_RESULT_ERROR);
|
||||
return imv_scanner->provide_recommendation(imv_scanner, connection_id);
|
||||
}
|
||||
|
||||
return imv_scanner->provide_recommendation(imv_scanner, connection_id);
|
||||
}
|
||||
|
||||
/**
|
||||
* see section 3.7.4 of TCG TNC IF-IMV Specification 1.2
|
||||
*/
|
||||
TNC_Result TNC_IMV_SolicitRecommendation(TNC_IMVID imv_id,
|
||||
TNC_ConnectionID connection_id)
|
||||
{
|
||||
if (!imv_scanner)
|
||||
{
|
||||
DBG1(DBG_IMV, "IMV \"%s\" has not been initialized", imv_name);
|
||||
return TNC_RESULT_NOT_INITIALIZED;
|
||||
}
|
||||
return imv_scanner->provide_recommendation(imv_scanner, connection_id);
|
||||
}
|
||||
|
||||
/**
|
||||
* see section 3.7.5 of TCG TNC IF-IMV Specification 1.2
|
||||
*/
|
||||
TNC_Result TNC_IMV_BatchEnding(TNC_IMVID imv_id,
|
||||
TNC_ConnectionID connection_id)
|
||||
{
|
||||
if (!imv_scanner)
|
||||
{
|
||||
DBG1(DBG_IMV, "IMV \"%s\" has not been initialized", imv_name);
|
||||
return TNC_RESULT_NOT_INITIALIZED;
|
||||
}
|
||||
return TNC_RESULT_SUCCESS;
|
||||
}
|
||||
|
||||
/**
|
||||
* see section 3.7.6 of TCG TNC IF-IMV Specification 1.2
|
||||
*/
|
||||
TNC_Result TNC_IMV_Terminate(TNC_IMVID imv_id)
|
||||
{
|
||||
if (!imv_scanner)
|
||||
{
|
||||
DBG1(DBG_IMV, "IMV \"%s\" has not been initialized", imv_name);
|
||||
return TNC_RESULT_NOT_INITIALIZED;
|
||||
}
|
||||
imv_scanner->destroy(imv_scanner);
|
||||
imv_scanner = NULL;
|
||||
|
||||
return TNC_RESULT_SUCCESS;
|
||||
}
|
||||
|
||||
/**
|
||||
* see section 4.2.8.1 of TCG TNC IF-IMV Specification 1.2
|
||||
*/
|
||||
TNC_Result TNC_IMV_ProvideBindFunction(TNC_IMVID imv_id,
|
||||
TNC_TNCS_BindFunctionPointer bind_function)
|
||||
{
|
||||
if (!imv_scanner)
|
||||
{
|
||||
DBG1(DBG_IMV, "IMV \"%s\" has not been initialized", imv_name);
|
||||
return TNC_RESULT_NOT_INITIALIZED;
|
||||
}
|
||||
return imv_scanner->bind_functions(imv_scanner, bind_function);
|
||||
}
|
|
@ -0,0 +1,16 @@
|
|||
|
||||
INCLUDES = -I$(top_srcdir)/src/libstrongswan -I$(top_srcdir)/src/libtncif \
|
||||
-I$(top_srcdir)/src/libimcv
|
||||
|
||||
AM_CFLAGS = -rdynamic
|
||||
|
||||
plugin_LTLIBRARIES = libstrongswan-imv-scanner.la
|
||||
|
||||
libstrongswan_imv_scanner_la_LIBADD = $(top_builddir)/src/libimcv/libimcv.la \
|
||||
$(top_builddir)/src/libstrongswan/libstrongswan.la
|
||||
|
||||
libstrongswan_imv_scanner_la_SOURCES = imv_scanner.c \
|
||||
imv_scanner_state.h imv_scanner_state.c
|
||||
|
||||
libstrongswan_imv_scanner_la_LDFLAGS = -module -avoid-version
|
||||
|
|
@ -0,0 +1,397 @@
|
|||
/*
|
||||
* Copyright (C) 2011 Andreas Steffen, HSR Hochschule fuer Technik Rapperswil
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify it
|
||||
* under the terms of the GNU General Public License as published by the
|
||||
* Free Software Foundation; either version 2 of the License, or (at your
|
||||
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
|
||||
*
|
||||
* 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.
|
||||
*/
|
||||
|
||||
#include "imv_scanner_state.h"
|
||||
|
||||
#include <imv/imv_agent.h>
|
||||
#include <pa_tnc/pa_tnc_msg.h>
|
||||
#include <ietf/ietf_attr.h>
|
||||
#include <ietf/ietf_attr_pa_tnc_error.h>
|
||||
#include <ietf/ietf_attr_port_filter.h>
|
||||
|
||||
#include <tncif_names.h>
|
||||
#include <tncif_pa_subtypes.h>
|
||||
|
||||
#include <pen/pen.h>
|
||||
#include <utils/linked_list.h>
|
||||
#include <utils/lexparser.h>
|
||||
#include <debug.h>
|
||||
|
||||
/* IMV definitions */
|
||||
|
||||
static const char imv_name[] = "Scanner";
|
||||
|
||||
#define IMV_VENDOR_ID PEN_ITA
|
||||
#define IMV_SUBTYPE PA_SUBTYPE_ITA_SCANNER
|
||||
|
||||
static imv_agent_t *imv_scanner;
|
||||
|
||||
typedef struct port_range_t port_range_t;
|
||||
|
||||
struct port_range_t {
|
||||
u_int16_t start, stop;
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* Default port policy
|
||||
*
|
||||
* TRUE: all server ports on the TNC client must be closed
|
||||
* FALSE: any server port on the TNC client is allowed to be open
|
||||
*/
|
||||
static bool closed_port_policy = TRUE;
|
||||
|
||||
/**
|
||||
* List of TCP and UDP port ranges
|
||||
*
|
||||
* TRUE: server ports on the TNC client that are allowed to be open
|
||||
* FALSE: server ports on the TNC client that must be closed
|
||||
*/
|
||||
static linked_list_t *tcp_ports, *udp_ports;
|
||||
|
||||
/**
|
||||
* Get a TCP or UDP port list from strongswan.conf
|
||||
*/
|
||||
static linked_list_t* get_port_list(char *label)
|
||||
{
|
||||
char key[40], *value;
|
||||
linked_list_t *list;
|
||||
chunk_t port_list, port_item, port_stop;
|
||||
port_range_t *port_range;
|
||||
|
||||
list = linked_list_create();
|
||||
|
||||
snprintf(key, sizeof(key), "libimcv.plugins.imv-scanner.%s_ports", label);
|
||||
value = lib->settings->get_str(lib->settings, key, NULL);
|
||||
if (!value)
|
||||
{
|
||||
DBG1(DBG_IMV, "% not defined", key);
|
||||
return list;
|
||||
}
|
||||
port_list = chunk_create(value, strlen(value));
|
||||
DBG2(DBG_IMV, "list of %s ports that %s:", label,
|
||||
closed_port_policy ? "are allowed to be open" : "must be closed");
|
||||
|
||||
while (eat_whitespace(&port_list))
|
||||
{
|
||||
if (!extract_token(&port_item, ' ', &port_list))
|
||||
{
|
||||
/* reached last port item */
|
||||
port_item = port_list;
|
||||
port_list = chunk_empty;
|
||||
}
|
||||
port_range = malloc_thing(port_range_t);
|
||||
port_range->start = atoi(port_item.ptr);;
|
||||
|
||||
if (extract_token(&port_stop, '-', &port_item))
|
||||
{
|
||||
port_range->stop = atoi(port_stop.ptr);
|
||||
}
|
||||
else
|
||||
{
|
||||
port_range->stop = port_range->start;
|
||||
}
|
||||
DBG2(DBG_IMV, "%5u - %5u", port_range->start, port_range->stop);
|
||||
list->insert_last(list, port_range);
|
||||
}
|
||||
|
||||
return list;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* see section 3.7.1 of TCG TNC IF-IMV Specification 1.2
|
||||
*/
|
||||
TNC_Result TNC_IMV_Initialize(TNC_IMVID imv_id,
|
||||
TNC_Version min_version,
|
||||
TNC_Version max_version,
|
||||
TNC_Version *actual_version)
|
||||
{
|
||||
if (imv_scanner)
|
||||
{
|
||||
DBG1(DBG_IMV, "IMV \"%s\" has already been initialized", imv_name);
|
||||
return TNC_RESULT_ALREADY_INITIALIZED;
|
||||
}
|
||||
imv_scanner = imv_agent_create(imv_name, IMV_VENDOR_ID, IMV_SUBTYPE,
|
||||
imv_id, actual_version);
|
||||
if (!imv_scanner)
|
||||
{
|
||||
return TNC_RESULT_FATAL;
|
||||
}
|
||||
if (min_version > TNC_IFIMV_VERSION_1 || max_version < TNC_IFIMV_VERSION_1)
|
||||
{
|
||||
DBG1(DBG_IMV, "no common IF-IMV version");
|
||||
return TNC_RESULT_NO_COMMON_VERSION;
|
||||
}
|
||||
|
||||
/* set the default port policy to closed (TRUE) or open (FALSE) */
|
||||
closed_port_policy = lib->settings->get_bool(lib->settings,
|
||||
"libimcv.plugins.imv-scanner.closed_port_policy", TRUE);
|
||||
DBG2(DBG_IMV, "default port policy is %s ports",
|
||||
closed_port_policy ? "closed" : "open");
|
||||
|
||||
/* get the list of open|closed ports */
|
||||
tcp_ports = get_port_list("tcp");
|
||||
udp_ports = get_port_list("udp");
|
||||
|
||||
return TNC_RESULT_SUCCESS;
|
||||
}
|
||||
|
||||
/**
|
||||
* see section 3.7.2 of TCG TNC IF-IMV Specification 1.2
|
||||
*/
|
||||
TNC_Result TNC_IMV_NotifyConnectionChange(TNC_IMVID imv_id,
|
||||
TNC_ConnectionID connection_id,
|
||||
TNC_ConnectionState new_state)
|
||||
{
|
||||
imv_state_t *state;
|
||||
|
||||
if (!imv_scanner)
|
||||
{
|
||||
DBG1(DBG_IMV, "IMV \"%s\" has not been initialized", imv_name);
|
||||
return TNC_RESULT_NOT_INITIALIZED;
|
||||
}
|
||||
switch (new_state)
|
||||
{
|
||||
case TNC_CONNECTION_STATE_CREATE:
|
||||
state = imv_scanner_state_create(connection_id);
|
||||
return imv_scanner->create_state(imv_scanner, state);
|
||||
case TNC_CONNECTION_STATE_DELETE:
|
||||
return imv_scanner->delete_state(imv_scanner, connection_id);
|
||||
default:
|
||||
return imv_scanner->change_state(imv_scanner, connection_id,
|
||||
new_state, NULL);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* see section 3.7.3 of TCG TNC IF-IMV Specification 1.2
|
||||
*/
|
||||
TNC_Result TNC_IMV_ReceiveMessage(TNC_IMVID imv_id,
|
||||
TNC_ConnectionID connection_id,
|
||||
TNC_BufferReference msg,
|
||||
TNC_UInt32 msg_len,
|
||||
TNC_MessageType msg_type)
|
||||
{
|
||||
pa_tnc_msg_t *pa_tnc_msg;
|
||||
pa_tnc_attr_t *attr;
|
||||
imv_state_t *state;
|
||||
enumerator_t *enumerator;
|
||||
TNC_Result result;
|
||||
bool fatal_error = FALSE;
|
||||
|
||||
if (!imv_scanner)
|
||||
{
|
||||
DBG1(DBG_IMV, "IMV \"%s\" has not been initialized", imv_name);
|
||||
return TNC_RESULT_NOT_INITIALIZED;
|
||||
}
|
||||
|
||||
/* get current IMV state */
|
||||
if (!imv_scanner->get_state(imv_scanner, connection_id, &state))
|
||||
{
|
||||
return TNC_RESULT_FATAL;
|
||||
}
|
||||
|
||||
/* parse received PA-TNC message and automatically handle any errors */
|
||||
result = imv_scanner->receive_message(imv_scanner, connection_id,
|
||||
chunk_create(msg, msg_len), msg_type,
|
||||
&pa_tnc_msg);
|
||||
|
||||
/* no parsed PA-TNC attributes available if an error occurred */
|
||||
if (!pa_tnc_msg)
|
||||
{
|
||||
return result;
|
||||
}
|
||||
|
||||
/* analyze PA-TNC attributes */
|
||||
enumerator = pa_tnc_msg->create_attribute_enumerator(pa_tnc_msg);
|
||||
while (enumerator->enumerate(enumerator, &attr))
|
||||
{
|
||||
if (attr->get_vendor_id(attr) != PEN_IETF)
|
||||
{
|
||||
continue;
|
||||
}
|
||||
|
||||
if (attr->get_type(attr) == IETF_ATTR_PA_TNC_ERROR)
|
||||
{
|
||||
ietf_attr_pa_tnc_error_t *error_attr;
|
||||
pa_tnc_error_code_t error_code;
|
||||
chunk_t msg_info, attr_info;
|
||||
|
||||
error_attr = (ietf_attr_pa_tnc_error_t*)attr;
|
||||
error_code = error_attr->get_error_code(error_attr);
|
||||
msg_info = error_attr->get_msg_info(error_attr);
|
||||
DBG1(DBG_IMV, "received PA-TNC error '%N' concerning message %#B",
|
||||
pa_tnc_error_code_names, error_code, &msg_info);
|
||||
|
||||
switch (error_code)
|
||||
{
|
||||
case PA_ERROR_ATTR_TYPE_NOT_SUPPORTED:
|
||||
attr_info = error_attr->get_attr_info(error_attr);
|
||||
DBG1(DBG_IMV, " unsupported attribute %#B", &attr_info);
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
fatal_error = TRUE;
|
||||
}
|
||||
else if (attr->get_type(attr) == IETF_ATTR_PORT_FILTER)
|
||||
{
|
||||
ietf_attr_port_filter_t *attr_port_filter;
|
||||
enumerator_t *enumerator;
|
||||
u_int8_t protocol;
|
||||
u_int16_t port;
|
||||
char buf[BUF_LEN], *pos = buf;
|
||||
size_t len = BUF_LEN;
|
||||
bool blocked, compliant = TRUE;
|
||||
|
||||
attr_port_filter = (ietf_attr_port_filter_t*)attr;
|
||||
enumerator = attr_port_filter->create_port_enumerator(attr_port_filter);
|
||||
while (enumerator->enumerate(enumerator, &blocked, &protocol, &port))
|
||||
{
|
||||
enumerator_t *e;
|
||||
port_range_t *port_range;
|
||||
bool passed, found = FALSE;
|
||||
int written = 0;
|
||||
|
||||
if (blocked)
|
||||
{
|
||||
/* ignore closed ports */
|
||||
continue;
|
||||
}
|
||||
|
||||
e = (protocol == IPPROTO_TCP) ?
|
||||
tcp_ports->create_enumerator(tcp_ports) :
|
||||
udp_ports->create_enumerator(udp_ports);
|
||||
while (e->enumerate(e, &port_range))
|
||||
{
|
||||
if (port >= port_range->start && port <= port_range->stop)
|
||||
{
|
||||
found = TRUE;
|
||||
break;
|
||||
}
|
||||
}
|
||||
e->destroy(e);
|
||||
|
||||
passed = (closed_port_policy == found);
|
||||
DBG2(DBG_IMV, "%s port %5u %s: %s",
|
||||
(protocol == IPPROTO_TCP) ? "tcp" : "udp", port,
|
||||
blocked ? "closed" : "open", passed ? "ok" : "fatal");
|
||||
if (!passed)
|
||||
{
|
||||
compliant = FALSE;
|
||||
written = snprintf(pos, len, " %s/%u",
|
||||
(protocol == IPPROTO_TCP) ? "tcp" : "udp",
|
||||
port);
|
||||
if (written < 0 || written >= len)
|
||||
{
|
||||
break;
|
||||
}
|
||||
pos += written;
|
||||
len -= written;
|
||||
}
|
||||
}
|
||||
enumerator->destroy(enumerator);
|
||||
|
||||
if (compliant)
|
||||
{
|
||||
state->set_recommendation(state,
|
||||
TNC_IMV_ACTION_RECOMMENDATION_ALLOW,
|
||||
TNC_IMV_EVALUATION_RESULT_COMPLIANT);
|
||||
}
|
||||
else
|
||||
{
|
||||
imv_scanner_state_t *imv_scanner_state;
|
||||
|
||||
imv_scanner_state = (imv_scanner_state_t*)state;
|
||||
imv_scanner_state->set_violating_ports(imv_scanner_state, buf);
|
||||
state->set_recommendation(state,
|
||||
TNC_IMV_ACTION_RECOMMENDATION_NO_ACCESS,
|
||||
TNC_IMV_EVALUATION_RESULT_NONCOMPLIANT_MAJOR);
|
||||
}
|
||||
}
|
||||
}
|
||||
enumerator->destroy(enumerator);
|
||||
pa_tnc_msg->destroy(pa_tnc_msg);
|
||||
|
||||
if (fatal_error)
|
||||
{
|
||||
state->set_recommendation(state,
|
||||
TNC_IMV_ACTION_RECOMMENDATION_NO_RECOMMENDATION,
|
||||
TNC_IMV_EVALUATION_RESULT_ERROR);
|
||||
return imv_scanner->provide_recommendation(imv_scanner, connection_id);
|
||||
}
|
||||
|
||||
return imv_scanner->provide_recommendation(imv_scanner, connection_id);
|
||||
}
|
||||
|
||||
/**
|
||||
* see section 3.7.4 of TCG TNC IF-IMV Specification 1.2
|
||||
*/
|
||||
TNC_Result TNC_IMV_SolicitRecommendation(TNC_IMVID imv_id,
|
||||
TNC_ConnectionID connection_id)
|
||||
{
|
||||
if (!imv_scanner)
|
||||
{
|
||||
DBG1(DBG_IMV, "IMV \"%s\" has not been initialized", imv_name);
|
||||
return TNC_RESULT_NOT_INITIALIZED;
|
||||
}
|
||||
return imv_scanner->provide_recommendation(imv_scanner, connection_id);
|
||||
}
|
||||
|
||||
/**
|
||||
* see section 3.7.5 of TCG TNC IF-IMV Specification 1.2
|
||||
*/
|
||||
TNC_Result TNC_IMV_BatchEnding(TNC_IMVID imv_id,
|
||||
TNC_ConnectionID connection_id)
|
||||
{
|
||||
if (!imv_scanner)
|
||||
{
|
||||
DBG1(DBG_IMV, "IMV \"%s\" has not been initialized", imv_name);
|
||||
return TNC_RESULT_NOT_INITIALIZED;
|
||||
}
|
||||
return TNC_RESULT_SUCCESS;
|
||||
}
|
||||
|
||||
/**
|
||||
* see section 3.7.6 of TCG TNC IF-IMV Specification 1.2
|
||||
*/
|
||||
TNC_Result TNC_IMV_Terminate(TNC_IMVID imv_id)
|
||||
{
|
||||
if (!imv_scanner)
|
||||
{
|
||||
DBG1(DBG_IMV, "IMV \"%s\" has not been initialized", imv_name);
|
||||
return TNC_RESULT_NOT_INITIALIZED;
|
||||
}
|
||||
tcp_ports->destroy_function(tcp_ports, free);
|
||||
udp_ports->destroy_function(udp_ports, free);
|
||||
imv_scanner->destroy(imv_scanner);
|
||||
imv_scanner = NULL;
|
||||
|
||||
return TNC_RESULT_SUCCESS;
|
||||
}
|
||||
|
||||
/**
|
||||
* see section 4.2.8.1 of TCG TNC IF-IMV Specification 1.2
|
||||
*/
|
||||
TNC_Result TNC_IMV_ProvideBindFunction(TNC_IMVID imv_id,
|
||||
TNC_TNCS_BindFunctionPointer bind_function)
|
||||
{
|
||||
if (!imv_scanner)
|
||||
{
|
||||
DBG1(DBG_IMV, "IMV \"%s\" has not been initialized", imv_name);
|
||||
return TNC_RESULT_NOT_INITIALIZED;
|
||||
}
|
||||
return imv_scanner->bind_functions(imv_scanner, bind_function);
|
||||
}
|
|
@ -0,0 +1,206 @@
|
|||
/*
|
||||
* Copyright (C) 2011 Andreas Steffen, HSR Hochschule fuer Technik Rapperswil
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify it
|
||||
* under the terms of the GNU General Public License as published by the
|
||||
* Free Software Foundation; either version 2 of the License, or (at your
|
||||
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
|
||||
*
|
||||
* 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.
|
||||
*/
|
||||
|
||||
#include "imv_scanner_state.h"
|
||||
|
||||
#include <utils/lexparser.h>
|
||||
#include <debug.h>
|
||||
|
||||
typedef struct private_imv_scanner_state_t private_imv_scanner_state_t;
|
||||
|
||||
/**
|
||||
* Private data of an imv_scanner_state_t object.
|
||||
*/
|
||||
struct private_imv_scanner_state_t {
|
||||
|
||||
/**
|
||||
* Public members of imv_scanner_state_t
|
||||
*/
|
||||
imv_scanner_state_t public;
|
||||
|
||||
/**
|
||||
* TNCCS connection ID
|
||||
*/
|
||||
TNC_ConnectionID connection_id;
|
||||
|
||||
/**
|
||||
* TNCCS connection state
|
||||
*/
|
||||
TNC_ConnectionState state;
|
||||
|
||||
/**
|
||||
* IMV action recommendation
|
||||
*/
|
||||
TNC_IMV_Action_Recommendation rec;
|
||||
|
||||
/**
|
||||
* IMV evaluation result
|
||||
*/
|
||||
TNC_IMV_Evaluation_Result eval;
|
||||
|
||||
/**
|
||||
* String with list of ports that should be closed
|
||||
*/
|
||||
char *violating_ports;
|
||||
|
||||
/**
|
||||
* Local copy of the reason string
|
||||
*/
|
||||
chunk_t reason_string;
|
||||
};
|
||||
|
||||
typedef struct entry_t entry_t;
|
||||
|
||||
/**
|
||||
* Define an internal reason string entry
|
||||
*/
|
||||
struct entry_t {
|
||||
char *lang;
|
||||
char *string;
|
||||
};
|
||||
|
||||
/**
|
||||
* Table of multi-lingual reason string entries
|
||||
*/
|
||||
static entry_t reasons[] = {
|
||||
{ "en", "The following ports are open:" },
|
||||
{ "de", "Die folgenden Ports sind offen" },
|
||||
{ "fr", "Les ports suivants sont ouverts:" },
|
||||
{ "pl", "Nastepujace porty sa otwarte:" }
|
||||
};
|
||||
|
||||
METHOD(imv_state_t, get_connection_id, TNC_ConnectionID,
|
||||
private_imv_scanner_state_t *this)
|
||||
{
|
||||
return this->connection_id;
|
||||
}
|
||||
|
||||
METHOD(imv_state_t, change_state, void,
|
||||
private_imv_scanner_state_t *this, TNC_ConnectionState new_state)
|
||||
{
|
||||
this->state = new_state;
|
||||
}
|
||||
|
||||
METHOD(imv_state_t, get_recommendation, void,
|
||||
private_imv_scanner_state_t *this, TNC_IMV_Action_Recommendation *rec,
|
||||
TNC_IMV_Evaluation_Result *eval)
|
||||
{
|
||||
*rec = this->rec;
|
||||
*eval = this->eval;
|
||||
}
|
||||
|
||||
METHOD(imv_state_t, set_recommendation, void,
|
||||
private_imv_scanner_state_t *this, TNC_IMV_Action_Recommendation rec,
|
||||
TNC_IMV_Evaluation_Result eval)
|
||||
{
|
||||
this->rec = rec;
|
||||
this->eval = eval;
|
||||
}
|
||||
|
||||
METHOD(imv_state_t, get_reason_string, bool,
|
||||
private_imv_scanner_state_t *this, chunk_t preferred_language,
|
||||
chunk_t *reason_string, chunk_t *reason_language)
|
||||
{
|
||||
chunk_t pref_lang, lang;
|
||||
u_char *pos;
|
||||
int i;
|
||||
|
||||
while (eat_whitespace(&preferred_language))
|
||||
{
|
||||
if (!extract_token(&pref_lang, ',', &preferred_language))
|
||||
{
|
||||
/* last entry in a comma-separated list or single entry */
|
||||
pref_lang = preferred_language;
|
||||
}
|
||||
|
||||
/* eat trailing whitespace */
|
||||
pos = pref_lang.ptr + pref_lang.len - 1;
|
||||
while (pref_lang.len && *pos-- == ' ')
|
||||
{
|
||||
pref_lang.len--;
|
||||
}
|
||||
|
||||
for (i = 0 ; i < countof(reasons); i++)
|
||||
{
|
||||
lang = chunk_create(reasons[i].lang, strlen(reasons[i].lang));
|
||||
if (chunk_equals(lang, pref_lang))
|
||||
{
|
||||
this->reason_string = chunk_cat("cc",
|
||||
chunk_create(reasons[i].string,
|
||||
strlen(reasons[i].string)),
|
||||
chunk_create(this->violating_ports,
|
||||
strlen(this->violating_ports)));
|
||||
*reason_string = this->reason_string;
|
||||
*reason_language = lang;
|
||||
return TRUE;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/* no preferred language match found - use the default language */
|
||||
|
||||
this->reason_string = chunk_cat("cc",
|
||||
chunk_create(reasons[0].string,
|
||||
strlen(reasons[0].string)),
|
||||
chunk_create(this->violating_ports,
|
||||
strlen(this->violating_ports)));
|
||||
*reason_string = this->reason_string;
|
||||
*reason_language = chunk_create(reasons[0].lang,
|
||||
strlen(reasons[0].lang));
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
METHOD(imv_state_t, destroy, void,
|
||||
private_imv_scanner_state_t *this)
|
||||
{
|
||||
free(this->violating_ports);
|
||||
free(this->reason_string.ptr);
|
||||
free(this);
|
||||
}
|
||||
|
||||
METHOD(imv_scanner_state_t, set_violating_ports, void,
|
||||
private_imv_scanner_state_t *this, char *ports)
|
||||
{
|
||||
this->violating_ports = strdup(ports);
|
||||
}
|
||||
|
||||
/**
|
||||
* Described in header.
|
||||
*/
|
||||
imv_state_t *imv_scanner_state_create(TNC_ConnectionID connection_id)
|
||||
{
|
||||
private_imv_scanner_state_t *this;
|
||||
|
||||
INIT(this,
|
||||
.public = {
|
||||
.interface = {
|
||||
.get_connection_id = _get_connection_id,
|
||||
.change_state = _change_state,
|
||||
.get_recommendation = _get_recommendation,
|
||||
.set_recommendation = _set_recommendation,
|
||||
.get_reason_string = _get_reason_string,
|
||||
.destroy = _destroy,
|
||||
},
|
||||
.set_violating_ports = _set_violating_ports,
|
||||
},
|
||||
.state = TNC_CONNECTION_STATE_CREATE,
|
||||
.rec = TNC_IMV_ACTION_RECOMMENDATION_NO_RECOMMENDATION,
|
||||
.eval = TNC_IMV_EVALUATION_RESULT_DONT_KNOW,
|
||||
.connection_id = connection_id,
|
||||
);
|
||||
|
||||
return &this->public.interface;
|
||||
}
|
||||
|
||||
|
|
@ -0,0 +1,52 @@
|
|||
/*
|
||||
* Copyright (C) 2011 Andreas Steffen, HSR Hochschule fuer Technik Rapperswil
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify it
|
||||
* under the terms of the GNU General Public License as published by the
|
||||
* Free Software Foundation; either version 2 of the License, or (at your
|
||||
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
|
||||
*
|
||||
* 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.
|
||||
*/
|
||||
|
||||
/**
|
||||
*
|
||||
* @defgroup imv_scanner_state_t imv_scanner_state
|
||||
* @{ @ingroup imv_scanner_state
|
||||
*/
|
||||
|
||||
#ifndef IMV_SCANNER_STATE_H_
|
||||
#define IMV_SCANNER_STATE_H_
|
||||
|
||||
#include <imv/imv_state.h>
|
||||
#include <library.h>
|
||||
|
||||
typedef struct imv_scanner_state_t imv_scanner_state_t;
|
||||
|
||||
/**
|
||||
* Internal state of an imv_scanner_t connection instance
|
||||
*/
|
||||
struct imv_scanner_state_t {
|
||||
|
||||
/**
|
||||
* imv_state_t interface
|
||||
*/
|
||||
imv_state_t interface;
|
||||
|
||||
/**
|
||||
* list of violating TCP and UDP ports
|
||||
*/
|
||||
void (*set_violating_ports)(imv_scanner_state_t *this, char *ports);
|
||||
};
|
||||
|
||||
/**
|
||||
* Create an imv_scanner_state_t instance
|
||||
*
|
||||
* @param id connection ID
|
||||
*/
|
||||
imv_state_t* imv_scanner_state_create(TNC_ConnectionID id);
|
||||
|
||||
#endif /** IMV_SCANNER_STATE_H_ @}*/
|
|
@ -47,8 +47,9 @@ ENUM_NEXT(pa_subtype_fhh_names, PA_SUBTYPE_FHH_CLAMAV, PA_SUBTYPE_FHH_CLAMAV,
|
|||
);
|
||||
ENUM_END(pa_subtype_fhh_names, PA_SUBTYPE_FHH_CLAMAV);
|
||||
|
||||
ENUM(pa_subtype_ita_names, PA_SUBTYPE_ITA_TEST, PA_SUBTYPE_ITA_TEST,
|
||||
"Test"
|
||||
ENUM(pa_subtype_ita_names, PA_SUBTYPE_ITA_TEST, PA_SUBTYPE_ITA_SCANNER,
|
||||
"Test",
|
||||
"Scanner"
|
||||
);
|
||||
|
||||
/**
|
||||
|
|
|
@ -75,7 +75,8 @@ extern enum_name_t *pa_subtype_fhh_names;
|
|||
* PA-TNC ITA-HSR Subtypes
|
||||
*/
|
||||
enum pa_subtype_ita_t {
|
||||
PA_SUBTYPE_ITA_TEST = 1
|
||||
PA_SUBTYPE_ITA_TEST = 1,
|
||||
PA_SUBTYPE_ITA_SCANNER = 2
|
||||
};
|
||||
|
||||
/**
|
||||
|
|
|
@ -227,6 +227,16 @@ then
|
|||
echo -n " --enable-imv-test" >> $INSTALLSHELL
|
||||
fi
|
||||
|
||||
if [ "$USE_IMC_SCANNER" = "yes" ]
|
||||
then
|
||||
echo -n " --enable-imc-scanner" >> $INSTALLSHELL
|
||||
fi
|
||||
|
||||
if [ "$USE_IMV_SCANNER" = "yes" ]
|
||||
then
|
||||
echo -n " --enable-imv-scanner" >> $INSTALLSHELL
|
||||
fi
|
||||
|
||||
if [ "$USE_SQL" = "yes" ]
|
||||
then
|
||||
echo -n " --enable-sql --enable-sqlite" >> $INSTALLSHELL
|
||||
|
|
|
@ -53,6 +53,8 @@ USE_TNCCS_20="yes"
|
|||
USE_TNCCS_DYNAMIC="yes"
|
||||
USE_IMC_TEST="yes"
|
||||
USE_IMV_TEST="yes"
|
||||
USE_IMC_SCANNER="yes"
|
||||
USE_IMV_SCANNER="yes"
|
||||
USE_SQL="yes"
|
||||
USE_MEDIATION="yes"
|
||||
USE_OPENSSL="yes"
|
||||
|
|
Loading…
Reference in New Issue