execute an _imv_policy script
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b8db66de15
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@ -39,6 +39,9 @@ libimcv_la_SOURCES = \
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pa_tnc/pa_tnc_msg.h pa_tnc/pa_tnc_msg.c \
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pa_tnc/pa_tnc_attr_manager.h pa_tnc/pa_tnc_attr_manager.c
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ipsec_SCRIPTS = imv/_imv_policy
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EXTRA_DIST = imv/_imv_policy
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SUBDIRS = .
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if USE_IMC_TEST
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@ -0,0 +1,39 @@
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#! /bin/sh
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# default TNC policy command script
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#
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# Copyright 2013 Andreas Steffen
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# 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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# CAUTION: Installing a new version of strongSwan will install a new
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# copy of this script, wiping out any custom changes you make. If
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# you need changes, make a copy of this under another name, and customize
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# that, and use the "libimcv.policy_script = " option in strongswan.conf
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# to make strongSwan use yours instead of this default one.
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# Environment variables that this script gets
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#
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# TNC_SESSION_ID
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# unique session ID used as a reference by the policy
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# manager.
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#
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case "$1" in
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start)
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echo "start session $TNC_SESSION_ID"
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;;
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stop)
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echo "stop session $TNC_SESSION_ID"
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;;
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*) echo "$0: unknown command '$1'"
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exit 1
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;;
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esac
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@ -13,17 +13,22 @@
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* for more details.
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*/
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#define _GNU_SOURCE
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#include <stdio.h>
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#include <string.h>
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#include <time.h>
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#include "imv_database.h"
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#include <utils/debug.h>
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#include <string.h>
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#include <time.h>
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typedef struct private_imv_database_t private_imv_database_t;
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#define SESSION_TIME_DELTA_MAX 2 /* seconds */
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#define DEFAULT_POLICY_SCRIPT "ipsec _imv_policy"
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/**
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* Private data of a imv_database_t object.
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*
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@ -40,6 +45,11 @@ struct private_imv_database_t {
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*/
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database_t *db;
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/**
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* policy script
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*/
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char *script;
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};
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METHOD(imv_database_t, get_session_id, int,
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@ -165,6 +175,49 @@ METHOD(imv_database_t, add_device, int,
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return did;
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}
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METHOD(imv_database_t, policy_script, bool,
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private_imv_database_t *this, int session_id, bool start)
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{
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char command[512], resp[128], *last;
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FILE *shell;
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snprintf(command, sizeof(command), "2>&1 TNC_SESSION_ID='%d' %s %s",
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session_id, this->script, start ? "start" : "stop");
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DBG3(DBG_IMV, "running policy script: %s", command);
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shell = popen(command, "r");
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if (shell == NULL)
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{
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DBG1(DBG_IMV, "could not execute policy script '%s'",
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this->script);
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return FALSE;
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}
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while (TRUE)
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{
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if (fgets(resp, sizeof(resp), shell) == NULL)
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{
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if (ferror(shell))
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{
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DBG1(DBG_IMV, "error reading output from policy script");
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}
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break;
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}
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else
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{
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last = resp + strlen(resp) - 1;
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if (last >= resp && *last == '\n')
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{
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/* replace trailing '\n' */
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*last = '\0';
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}
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DBG1(DBG_IMV, "policy: %s", resp);
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}
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}
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pclose(shell);
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return TRUE;
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}
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METHOD(imv_database_t, get_database, database_t*,
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private_imv_database_t *this)
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{
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@ -190,10 +243,13 @@ imv_database_t *imv_database_create(char *uri)
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.get_session_id = _get_session_id,
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.add_product = _add_product,
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.add_device = _add_device,
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.policy_script = _policy_script,
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.get_database = _get_database,
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.destroy = _destroy,
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},
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.db = lib->db->create(lib->db, uri),
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.script = lib->settings->get_str(lib->settings,
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"libimcv.policy_script", DEFAULT_POLICY_SCRIPT),
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);
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if (!this->db)
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@ -56,12 +56,21 @@ struct imv_database_t {
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/**
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* Add device identification to a session
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*
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* @param session_id Sessiion ID
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* @param session_id Session ID
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* @param device Device identification
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* @return Device ID or 0 if not available
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*/
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int (*add_device)(imv_database_t *this, int session_id, chunk_t device);
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/**
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* Announce session start/stop to policy script
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*
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* @param session_id Session ID
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* @param start TRUE if session start, FALSE if session stop
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* @return TRUE if command successful, FALSE otherwise
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*/
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bool (*policy_script)(imv_database_t *this, int session_id, bool start);
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/**
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* Get database handle
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*
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@ -96,6 +96,8 @@ TNC_Result TNC_IMV_NotifyConnectionChange(TNC_IMVID imv_id,
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TNC_ConnectionState new_state)
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{
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imv_state_t *state;
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imv_database_t *imv_db;
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int session_id;
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if (!imv_os)
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{
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@ -108,6 +110,12 @@ TNC_Result TNC_IMV_NotifyConnectionChange(TNC_IMVID imv_id,
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state = imv_os_state_create(connection_id);
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return imv_os->create_state(imv_os, state);
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case TNC_CONNECTION_STATE_DELETE:
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imv_db = imv_os->get_database(imv_os);
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if (imv_db && imv_os->get_state(imv_os, connection_id, &state))
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{
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session_id = state->get_session_id(state);
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imv_db->policy_script(imv_db, session_id, FALSE);
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}
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return imv_os->delete_state(imv_os, connection_id);
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default:
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return imv_os->change_state(imv_os, connection_id,
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@ -284,7 +292,7 @@ static TNC_Result receive_message(imv_state_t *state, imv_msg_t *in_msg)
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ita_attr_settings_t *attr_cast;
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imv_database_t *imv_db;
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enumerator_t *e;
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int did;
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int session_id, device_id;
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char *name;
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chunk_t value;
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@ -304,9 +312,13 @@ static TNC_Result receive_message(imv_state_t *state, imv_msg_t *in_msg)
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imv_db = imv_os->get_database(imv_os);
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if (imv_db)
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{
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did = imv_db->add_device(imv_db,
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state->get_session_id(state), value);
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os_state->set_device_id(os_state, did);
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session_id = state->get_session_id(state);
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device_id = imv_db->add_device(imv_db,
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session_id, value);
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os_state->set_device_id(os_state, device_id);
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/* trigger the policy manager */
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imv_db->policy_script(imv_db, session_id, TRUE);
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}
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}
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DBG1(DBG_IMV, "setting '%s'\n %.*s",
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@ -191,8 +191,6 @@ METHOD(imv_os_database_t, set_device_info, void,
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private_imv_os_database_t *this, int session_id, int count,
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int count_update, int count_blacklist, u_int flags)
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{
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enumerator_t *e;
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this->db->execute(this->db, NULL,
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"INSERT INTO device_infos (session, count, count_update, "
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"count_blacklist, flags) VALUES (?, ?, ?, ?, ?)",
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