created OS IMC/IMV pair
authorAndreas Steffen <andreas.steffen@strongswan.org>
Tue, 9 Oct 2012 21:58:17 +0000 (23:58 +0200)
committerAndreas Steffen <andreas.steffen@strongswan.org>
Tue, 9 Oct 2012 21:58:36 +0000 (23:58 +0200)
12 files changed:
configure.in
src/libimcv/Makefile.am
src/libimcv/plugins/imc_os/Makefile.am [new file with mode: 0644]
src/libimcv/plugins/imc_os/imc_os.c [new file with mode: 0644]
src/libimcv/plugins/imc_os/imc_os_state.c [new file with mode: 0644]
src/libimcv/plugins/imc_os/imc_os_state.h [new file with mode: 0644]
src/libimcv/plugins/imv_os/Makefile.am [new file with mode: 0644]
src/libimcv/plugins/imv_os/imv_os.c [new file with mode: 0644]
src/libimcv/plugins/imv_os/imv_os_state.c [new file with mode: 0644]
src/libimcv/plugins/imv_os/imv_os_state.h [new file with mode: 0644]
testing/scripts/build-umlrootfs
testing/testing.conf

index d4d54e3..52beaf2 100644 (file)
@@ -170,6 +170,8 @@ ARG_ENABL_SET([imc-test],       [enable IMC test module.])
 ARG_ENABL_SET([imv-test],       [enable IMV test module.])
 ARG_ENABL_SET([imc-scanner],    [enable IMC port scanner module.])
 ARG_ENABL_SET([imv-scanner],    [enable IMV port scanner module.])
+ARG_ENABL_SET([imc-os],         [enable IMC operating system module.])
+ARG_ENABL_SET([imv-os],         [enable IMV operating system module.])
 ARG_ENABL_SET([imc-attestation],[enable IMC attestation module.])
 ARG_ENABL_SET([imv-attestation],[enable IMV attestation module.])
 ARG_DISBL_SET([kernel-netlink], [disable the netlink kernel interface.])
@@ -293,7 +295,7 @@ if test x$tnc_imc = xtrue -o x$tnc_imv = xtrue -o x$tnccs_11 = xtrue -o x$tnccs_
        tnc_tnccs=true;
 fi
 
-if test x$imc_test = xtrue -o x$imv_test = xtrue -o x$imc_scanner = xtrue -o x$imv_scanner = xtrue -o x$imc_attestation = xtrue -o x$imv_attestation = xtrue; then
+if test x$imc_test = xtrue -o x$imv_test = xtrue -o x$imc_scanner = xtrue -o x$imv_scanner = xtrue -o x$imc_os = xtrue -o x$imv_os = xtrue -o x$imc_attestation = xtrue -o x$imv_attestation = xtrue; then
        imcv=true;
 fi
 
@@ -1074,6 +1076,8 @@ AM_CONDITIONAL(USE_IMC_TEST, test x$imc_test = xtrue)
 AM_CONDITIONAL(USE_IMV_TEST, test x$imv_test = xtrue)
 AM_CONDITIONAL(USE_IMC_SCANNER, test x$imc_scanner = xtrue)
 AM_CONDITIONAL(USE_IMV_SCANNER, test x$imv_scanner = xtrue)
+AM_CONDITIONAL(USE_IMC_OS, test x$imc_os = xtrue)
+AM_CONDITIONAL(USE_IMV_OS, test x$imv_os = xtrue)
 AM_CONDITIONAL(USE_IMC_ATTESTATION, test x$imc_attestation = xtrue)
 AM_CONDITIONAL(USE_IMV_ATTESTATION, test x$imv_attestation = xtrue)
 AM_CONDITIONAL(USE_SOCKET_DEFAULT, test x$socket_default = xtrue)
@@ -1220,6 +1224,8 @@ AC_OUTPUT(
        src/libimcv/plugins/imv_test/Makefile
        src/libimcv/plugins/imc_scanner/Makefile
        src/libimcv/plugins/imv_scanner/Makefile
+       src/libimcv/plugins/imc_os/Makefile
+       src/libimcv/plugins/imv_os/Makefile
        src/charon/Makefile
        src/charon-nm/Makefile
        src/libcharon/Makefile
index d8ef5e3..b871862 100644 (file)
@@ -39,4 +39,12 @@ endif
 
 if USE_IMV_SCANNER
   SUBDIRS += plugins/imv_scanner
-endif 
+endif
+
+if USE_IMC_OS
+  SUBDIRS += plugins/imc_os
+endif
+
+if USE_IMV_OS
+  SUBDIRS += plugins/imv_os
+endif
diff --git a/src/libimcv/plugins/imc_os/Makefile.am b/src/libimcv/plugins/imc_os/Makefile.am
new file mode 100644 (file)
index 0000000..0bfe776
--- /dev/null
@@ -0,0 +1,15 @@
+
+INCLUDES = -I$(top_srcdir)/src/libstrongswan -I$(top_srcdir)/src/libtncif \
+       -I$(top_srcdir)/src/libimcv
+
+AM_CFLAGS = -rdynamic
+
+imcv_LTLIBRARIES = imc-os.la
+
+imc_os_la_LIBADD = $(top_builddir)/src/libimcv/libimcv.la \
+       $(top_builddir)/src/libstrongswan/libstrongswan.la
+
+imc_os_la_SOURCES = imc_os.c imc_os_state.h imc_os_state.c
+
+imc_os_la_LDFLAGS = -module -avoid-version
+
diff --git a/src/libimcv/plugins/imc_os/imc_os.c b/src/libimcv/plugins/imc_os/imc_os.c
new file mode 100644 (file)
index 0000000..8c0aadb
--- /dev/null
@@ -0,0 +1,362 @@
+/*
+ * Copyright (C) 2011-2012 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 "imc_os_state.h"
+
+#include <imc/imc_agent.h>
+#include <pa_tnc/pa_tnc_msg.h>
+#include <ietf/ietf_attr.h>
+#include <ietf/ietf_attr_attr_request.h>
+#include <ietf/ietf_attr_product_info.h>
+#include <ietf/ietf_attr_installed_packages.h>
+#include <ietf/ietf_attr_pa_tnc_error.h>
+#include <ietf/ietf_attr_assess_result.h>
+
+#include <tncif_pa_subtypes.h>
+
+#include <pen/pen.h>
+#include <debug.h>
+
+#include <stdio.h>
+
+/* IMC definitions */
+
+static const char imc_name[] = "OS";
+
+#define IMC_VENDOR_ID  PEN_IETF
+#define IMC_SUBTYPE            PA_SUBTYPE_IETF_OPERATING_SYSTEM
+
+static imc_agent_t *imc_os;
+
+/**
+ * see section 3.8.1 of TCG TNC IF-IMC Specification 1.3
+ */
+TNC_Result TNC_IMC_Initialize(TNC_IMCID imc_id,
+                                                         TNC_Version min_version,
+                                                         TNC_Version max_version,
+                                                         TNC_Version *actual_version)
+{
+       if (imc_os)
+       {
+               DBG1(DBG_IMC, "IMC \"%s\" has already been initialized", imc_name);
+               return TNC_RESULT_ALREADY_INITIALIZED;
+       }
+       imc_os = imc_agent_create(imc_name, IMC_VENDOR_ID, IMC_SUBTYPE,
+                                                               imc_id, actual_version);
+       if (!imc_os)
+       {
+               return TNC_RESULT_FATAL;
+       }
+       if (min_version > TNC_IFIMC_VERSION_1 || max_version < TNC_IFIMC_VERSION_1)
+       {
+               DBG1(DBG_IMC, "no common IF-IMC version");
+               return TNC_RESULT_NO_COMMON_VERSION;
+       }
+       return TNC_RESULT_SUCCESS;
+}
+
+/**
+ * see section 3.8.2 of TCG TNC IF-IMC Specification 1.3
+ */
+TNC_Result TNC_IMC_NotifyConnectionChange(TNC_IMCID imc_id,
+                                                                                 TNC_ConnectionID connection_id,
+                                                                                 TNC_ConnectionState new_state)
+{
+       imc_state_t *state;
+
+       if (!imc_os)
+       {
+               DBG1(DBG_IMC, "IMC \"%s\" has not been initialized", imc_name);
+               return TNC_RESULT_NOT_INITIALIZED;
+       }
+       switch (new_state)
+       {
+               case TNC_CONNECTION_STATE_CREATE:
+                       state = imc_os_state_create(connection_id);
+                       return imc_os->create_state(imc_os, state);
+               case TNC_CONNECTION_STATE_HANDSHAKE:
+                       if (imc_os->change_state(imc_os, connection_id, new_state,
+                               &state) != TNC_RESULT_SUCCESS)
+                       {
+                               return TNC_RESULT_FATAL;
+                       }
+                       state->set_result(state, imc_id,
+                                                         TNC_IMV_EVALUATION_RESULT_DONT_KNOW);
+                       return TNC_RESULT_SUCCESS;
+               case TNC_CONNECTION_STATE_DELETE:
+                       return imc_os->delete_state(imc_os, connection_id);
+               default:
+                       return imc_os->change_state(imc_os, connection_id,
+                                                                                        new_state, NULL);
+       }
+}
+
+/**
+ * Add an IETF Product Information attribute to the send queue
+ */
+static void add_product_info(linked_list_t *attr_list)
+{
+       pa_tnc_attr_t *attr;
+
+       attr = ietf_attr_product_info_create(PEN_IETF, 0, "Ubuntu 12.04 LTS i686");
+       attr_list->insert_last(attr_list, attr);
+}
+
+/**
+ * Add an IETF Installed Packages attribute to the send queue
+ */
+static void add_installed_packages(linked_list_t *attr_list)
+{
+       pa_tnc_attr_t *attr;
+       ietf_attr_installed_packages_t *attr_cast;
+       chunk_t libc_name = { "libc-bin", 8 };
+       chunk_t libc_version = { "2.15-0ubuntu10.2", 16 };
+       chunk_t selinux_name =  { "selinux", 7 };
+       chunk_t selinux_version = { "1:0.11", 6 };
+
+       attr = ietf_attr_installed_packages_create();
+       attr_cast = (ietf_attr_installed_packages_t*)attr;
+       attr_cast->add(attr_cast, libc_name, libc_version);
+       attr_cast->add(attr_cast, selinux_name, selinux_version);
+       attr_list->insert_last(attr_list, attr);
+}
+
+/**
+ * see section 3.8.3 of TCG TNC IF-IMC Specification 1.3
+ */
+TNC_Result TNC_IMC_BeginHandshake(TNC_IMCID imc_id,
+                                                                 TNC_ConnectionID connection_id)
+{
+       TNC_Result result = TNC_RESULT_SUCCESS;
+
+       if (!imc_os)
+       {
+               DBG1(DBG_IMC, "IMC \"%s\" has not been initialized", imc_name);
+               return TNC_RESULT_NOT_INITIALIZED;
+       }
+
+       if (lib->settings->get_bool(lib->settings,
+                                                       "libimcv.plugins.imc-os.send_product_info", TRUE))
+       {
+               linked_list_t *attr_list;
+
+               attr_list = linked_list_create();
+               add_product_info(attr_list);
+               result = imc_os->send_message(imc_os, connection_id, FALSE, 0,
+                                                                         TNC_IMVID_ANY, attr_list);
+               attr_list->destroy(attr_list);
+       }
+
+       return result;
+}
+
+static TNC_Result receive_message(TNC_IMCID imc_id,
+                                                                 TNC_ConnectionID connection_id,
+                                                                 TNC_UInt32 msg_flags,
+                                                                 chunk_t msg,
+                                                                 TNC_VendorID msg_vid,
+                                                                 TNC_MessageSubtype msg_subtype,
+                                                                 TNC_UInt32 src_imv_id,
+                                                                 TNC_UInt32 dst_imc_id)
+{
+       pa_tnc_msg_t *pa_tnc_msg;
+       pa_tnc_attr_t *attr;
+       pen_type_t attr_type;
+       linked_list_t *attr_list;
+       imc_state_t *state;
+       enumerator_t *enumerator;
+       TNC_Result result;
+       TNC_UInt32 target_imc_id;
+       bool fatal_error;
+
+       if (!imc_os)
+       {
+               DBG1(DBG_IMC, "IMC \"%s\" has not been initialized", imc_name);
+               return TNC_RESULT_NOT_INITIALIZED;
+       }
+
+       /* get current IMC state */
+       if (!imc_os->get_state(imc_os, connection_id, &state))
+       {
+               return TNC_RESULT_FATAL;
+       }
+
+       /* parse received PA-TNC message and automatically handle any errors */
+       result = imc_os->receive_message(imc_os, state, msg, msg_vid,
+                                                       msg_subtype, src_imv_id, dst_imc_id, &pa_tnc_msg);
+
+       /* no parsed PA-TNC attributes available if an error occurred */
+       if (!pa_tnc_msg)
+       {
+               return result;
+       }
+       target_imc_id = (dst_imc_id == TNC_IMCID_ANY) ? imc_id : dst_imc_id;
+
+       /* preprocess any IETF standard error attributes */
+       fatal_error = pa_tnc_msg->process_ietf_std_errors(pa_tnc_msg);
+
+       /* analyze PA-TNC attributes */
+       attr_list = linked_list_create();
+       enumerator = pa_tnc_msg->create_attribute_enumerator(pa_tnc_msg);
+       while (enumerator->enumerate(enumerator, &attr))
+       {
+               attr_type = attr->get_type(attr);
+
+               if (attr_type.vendor_id != PEN_IETF)
+               {
+                       continue;
+               }
+               if (attr_type.type == IETF_ATTR_ATTRIBUTE_REQUEST)
+               {
+                       ietf_attr_attr_request_t *attr_cast;
+                       pen_type_t *entry;
+                       enumerator_t *e;
+
+                       attr_cast = (ietf_attr_attr_request_t*)attr;
+
+                       e = attr_cast->create_enumerator(attr_cast);
+                       while (e->enumerate(e, &entry))
+                       {
+                               if (entry->vendor_id != PEN_IETF)
+                               {
+                                       continue;
+                               }
+                               switch (entry->type)
+                               {
+                                       case IETF_ATTR_PRODUCT_INFORMATION:
+                                               add_product_info(attr_list);
+                                               break;
+                                       case IETF_ATTR_INSTALLED_PACKAGES:
+                                               add_installed_packages(attr_list);
+                                               break;
+                                       default:
+                                               break;
+                               }
+                       }
+                       e->destroy(e); 
+               }
+               else if (attr_type.type == IETF_ATTR_ASSESSMENT_RESULT)
+               {
+                       ietf_attr_assess_result_t *attr_cast;
+
+                       attr_cast = (ietf_attr_assess_result_t*)attr;
+                       state->set_result(state, target_imc_id,
+                                                         attr_cast->get_result(attr_cast));
+               }
+       }
+       enumerator->destroy(enumerator);
+       pa_tnc_msg->destroy(pa_tnc_msg);
+
+       if (fatal_error)
+       {
+               attr_list->destroy_offset(attr_list, offsetof(pa_tnc_attr_t, destroy));
+               return TNC_RESULT_FATAL;
+       }
+
+       if (attr_list->get_count(attr_list))
+       {
+               result = imc_os->send_message(imc_os, connection_id, TRUE, imc_id,
+                                                                         src_imv_id, attr_list);
+       }
+       else
+       {
+               result = TNC_RESULT_SUCCESS;
+       }
+       attr_list->destroy(attr_list);
+
+       return result;
+}
+
+/**
+ * see section 3.8.4 of TCG TNC IF-IMC Specification 1.3
+
+ */
+TNC_Result TNC_IMC_ReceiveMessage(TNC_IMCID imc_id,
+                                                                 TNC_ConnectionID connection_id,
+                                                                 TNC_BufferReference msg,
+                                                                 TNC_UInt32 msg_len,
+                                                                 TNC_MessageType msg_type)
+{
+       TNC_VendorID msg_vid;
+       TNC_MessageSubtype msg_subtype;
+
+       msg_vid = msg_type >> 8;
+       msg_subtype = msg_type & TNC_SUBTYPE_ANY;
+
+       return receive_message(imc_id, connection_id, 0, chunk_create(msg, msg_len),
+                                                  msg_vid,     msg_subtype, 0, TNC_IMCID_ANY);
+}
+
+/**
+ * see section 3.8.6 of TCG TNC IF-IMV Specification 1.3
+ */
+TNC_Result TNC_IMC_ReceiveMessageLong(TNC_IMCID imc_id,
+                                                                         TNC_ConnectionID connection_id,
+                                                                         TNC_UInt32 msg_flags,
+                                                                         TNC_BufferReference msg,
+                                                                         TNC_UInt32 msg_len,
+                                                                         TNC_VendorID msg_vid,
+                                                                         TNC_MessageSubtype msg_subtype,
+                                                                         TNC_UInt32 src_imv_id,
+                                                                         TNC_UInt32 dst_imc_id)
+{
+       return receive_message(imc_id, connection_id, msg_flags,
+                                                  chunk_create(msg, msg_len), msg_vid, msg_subtype,
+                                                  src_imv_id, dst_imc_id);
+}
+
+/**
+ * see section 3.8.7 of TCG TNC IF-IMC Specification 1.3
+ */
+TNC_Result TNC_IMC_BatchEnding(TNC_IMCID imc_id,
+                                                          TNC_ConnectionID connection_id)
+{
+       if (!imc_os)
+       {
+               DBG1(DBG_IMC, "IMC \"%s\" has not been initialized", imc_name);
+               return TNC_RESULT_NOT_INITIALIZED;
+       }
+       return TNC_RESULT_SUCCESS;
+}
+
+/**
+ * see section 3.8.8 of TCG TNC IF-IMC Specification 1.3
+ */
+TNC_Result TNC_IMC_Terminate(TNC_IMCID imc_id)
+{
+       if (!imc_os)
+       {
+               DBG1(DBG_IMC, "IMC \"%s\" has not been initialized", imc_name);
+               return TNC_RESULT_NOT_INITIALIZED;
+       }
+       imc_os->destroy(imc_os);
+       imc_os = NULL;
+
+       return TNC_RESULT_SUCCESS;
+}
+
+/**
+ * see section 4.2.8.1 of TCG TNC IF-IMC Specification 1.3
+ */
+TNC_Result TNC_IMC_ProvideBindFunction(TNC_IMCID imc_id,
+                                                                          TNC_TNCC_BindFunctionPointer bind_function)
+{
+       if (!imc_os)
+       {
+               DBG1(DBG_IMC, "IMC \"%s\" has not been initialized", imc_name);
+               return TNC_RESULT_NOT_INITIALIZED;
+       }
+       return imc_os->bind_functions(imc_os, bind_function);
+}
diff --git a/src/libimcv/plugins/imc_os/imc_os_state.c b/src/libimcv/plugins/imc_os/imc_os_state.c
new file mode 100644 (file)
index 0000000..5ad7379
--- /dev/null
@@ -0,0 +1,164 @@
+/*
+ * Copyright (C) 2012 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 "imc_os_state.h"
+
+#include <tncif_names.h>
+
+#include <debug.h>
+
+typedef struct private_imc_os_state_t private_imc_os_state_t;
+
+/**
+ * Private data of an imc_os_state_t object.
+ */
+struct private_imc_os_state_t {
+
+       /**
+        * Public members of imc_os_state_t
+        */
+       imc_os_state_t public;
+
+       /**
+        * TNCCS connection ID
+        */
+       TNC_ConnectionID connection_id;
+
+       /**
+        * TNCCS connection state
+        */
+       TNC_ConnectionState state;
+
+       /**
+        * Assessment/Evaluation Result
+        */
+       TNC_IMV_Evaluation_Result result;
+
+       /**
+        * Does the TNCCS connection support long message types?
+        */
+       bool has_long;
+
+       /**
+        * Does the TNCCS connection support exclusive delivery?
+        */
+       bool has_excl;
+
+       /**
+        * Maximum PA-TNC message size for this TNCCS connection
+        */
+       u_int32_t max_msg_len;
+};
+
+METHOD(imc_state_t, get_connection_id, TNC_ConnectionID,
+       private_imc_os_state_t *this)
+{
+       return this->connection_id;
+}
+
+METHOD(imc_state_t, has_long, bool,
+       private_imc_os_state_t *this)
+{
+       return this->has_long;
+}
+
+METHOD(imc_state_t, has_excl, bool,
+       private_imc_os_state_t *this)
+{
+       return this->has_excl;
+}
+
+METHOD(imc_state_t, set_flags, void,
+       private_imc_os_state_t *this, bool has_long, bool has_excl)
+{
+       this->has_long = has_long;
+       this->has_excl = has_excl;
+}
+
+METHOD(imc_state_t, set_max_msg_len, void,
+       private_imc_os_state_t *this, u_int32_t max_msg_len)
+{
+       this->max_msg_len = max_msg_len;
+}
+
+METHOD(imc_state_t, get_max_msg_len, u_int32_t,
+       private_imc_os_state_t *this)
+{
+       return this->max_msg_len;
+}
+
+METHOD(imc_state_t, change_state, void,
+       private_imc_os_state_t *this, TNC_ConnectionState new_state)
+{
+       this->state = new_state;
+}
+
+METHOD(imc_state_t, set_result, void,
+       private_imc_os_state_t *this, TNC_IMCID id,
+       TNC_IMV_Evaluation_Result result)
+{
+       DBG1(DBG_IMC, "set assessment result for IMC %u to '%N'",
+                id, TNC_IMV_Evaluation_Result_names, result);
+       this->result = result;
+}
+
+METHOD(imc_state_t, get_result, bool,
+       private_imc_os_state_t *this, TNC_IMCID id,
+       TNC_IMV_Evaluation_Result *result)
+{
+       if (result)
+       {
+               *result = this->result;
+       }
+       return this->result != TNC_IMV_EVALUATION_RESULT_DONT_KNOW;
+}
+
+METHOD(imc_state_t, destroy, void,
+       private_imc_os_state_t *this)
+{
+       free(this);
+}
+
+/**
+ * Described in header.
+ */
+imc_state_t *imc_os_state_create(TNC_ConnectionID connection_id)
+{
+       private_imc_os_state_t *this;
+
+       INIT(this,
+               .public = {
+                       .interface = {
+                               .get_connection_id = _get_connection_id,
+                               .has_long = _has_long,
+                               .has_excl = _has_excl,
+                               .set_flags = _set_flags,
+                               .set_max_msg_len = _set_max_msg_len,
+                               .get_max_msg_len = _get_max_msg_len,
+                               .change_state = _change_state,
+                               .set_result = _set_result,
+                               .get_result = _get_result,
+                               .destroy = _destroy,
+                       },
+               },
+               .state = TNC_CONNECTION_STATE_CREATE,
+               .result = TNC_IMV_EVALUATION_RESULT_DONT_KNOW,
+               .connection_id = connection_id,
+       );
+       
+       return &this->public.interface;
+}
+
+
diff --git a/src/libimcv/plugins/imc_os/imc_os_state.h b/src/libimcv/plugins/imc_os/imc_os_state.h
new file mode 100644 (file)
index 0000000..1fe2317
--- /dev/null
@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2012 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_os_state_t imc_os_state
+ * @{ @ingroup imc_os_state
+ */
+
+#ifndef IMC_OS_STATE_H_
+#define IMC_OS_STATE_H_
+
+#include <imc/imc_state.h>
+#include <library.h>
+
+typedef struct imc_os_state_t imc_os_state_t;
+
+/**
+ * Internal state of an imc_os_t connection instance
+ */
+struct imc_os_state_t {
+
+       /**
+        * imc_state_t interface
+        */
+       imc_state_t interface;
+};
+
+/**
+ * Create an imc_os_state_t instance
+ *
+ * @param id           connection ID
+ */
+imc_state_t* imc_os_state_create(TNC_ConnectionID id);
+
+#endif /** IMC_OS_STATE_H_ @}*/
diff --git a/src/libimcv/plugins/imv_os/Makefile.am b/src/libimcv/plugins/imv_os/Makefile.am
new file mode 100644 (file)
index 0000000..a01ec1b
--- /dev/null
@@ -0,0 +1,15 @@
+
+INCLUDES = -I$(top_srcdir)/src/libstrongswan -I$(top_srcdir)/src/libtncif \
+       -I$(top_srcdir)/src/libimcv
+
+AM_CFLAGS = -rdynamic
+
+imcv_LTLIBRARIES = imv-os.la
+
+imv_os_la_LIBADD = $(top_builddir)/src/libimcv/libimcv.la \
+       $(top_builddir)/src/libstrongswan/libstrongswan.la
+
+imv_os_la_SOURCES = imv_os.c imv_os_state.h imv_os_state.c
+
+imv_os_la_LDFLAGS = -module -avoid-version
+
diff --git a/src/libimcv/plugins/imv_os/imv_os.c b/src/libimcv/plugins/imv_os/imv_os.c
new file mode 100644 (file)
index 0000000..b094e10
--- /dev/null
@@ -0,0 +1,339 @@
+/*
+ * Copyright (C) 2012 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_os_state.h"
+
+#include <imv/imv_agent.h>
+#include <pa_tnc/pa_tnc_msg.h>
+#include <ietf/ietf_attr.h>
+#include <ietf/ietf_attr_attr_request.h>
+#include <ietf/ietf_attr_product_info.h>
+#include <ietf/ietf_attr_installed_packages.h>
+#include <ietf/ietf_attr_pa_tnc_error.h>
+
+#include <tncif_names.h>
+#include <tncif_pa_subtypes.h>
+
+#include <pen/pen.h>
+#include <utils/linked_list.h>
+#include <debug.h>
+
+/* IMV definitions */
+
+static const char imv_name[] = "OS";
+
+#define IMV_VENDOR_ID  PEN_IETF
+#define IMV_SUBTYPE            PA_SUBTYPE_IETF_OPERATING_SYSTEM
+
+static imv_agent_t *imv_os;
+
+/*
+ * see section 3.8.1 of TCG TNC IF-IMV Specification 1.3
+ */
+TNC_Result TNC_IMV_Initialize(TNC_IMVID imv_id,
+                                                         TNC_Version min_version,
+                                                         TNC_Version max_version,
+                                                         TNC_Version *actual_version)
+{
+       if (imv_os)
+       {
+               DBG1(DBG_IMV, "IMV \"%s\" has already been initialized", imv_name);
+               return TNC_RESULT_ALREADY_INITIALIZED;
+       }
+       imv_os = imv_agent_create(imv_name, IMV_VENDOR_ID, IMV_SUBTYPE,
+                                                               imv_id, actual_version);
+       if (!imv_os)
+       {
+               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 3.8.2 of TCG TNC IF-IMV Specification 1.3
+ */
+TNC_Result TNC_IMV_NotifyConnectionChange(TNC_IMVID imv_id,
+                                                                                 TNC_ConnectionID connection_id,
+                                                                                 TNC_ConnectionState new_state)
+{
+       imv_state_t *state;
+
+       if (!imv_os)
+       {
+               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_os_state_create(connection_id);
+                       return imv_os->create_state(imv_os, state);
+               case TNC_CONNECTION_STATE_DELETE:
+                       return imv_os->delete_state(imv_os, connection_id);
+               default:
+                       return imv_os->change_state(imv_os, connection_id,
+                                                                                        new_state, NULL);
+       }
+}
+
+static TNC_Result receive_message(TNC_IMVID imv_id,
+                                                                 TNC_ConnectionID connection_id,
+                                                                 TNC_UInt32 msg_flags,
+                                                                 chunk_t msg,
+                                                                 TNC_VendorID msg_vid,
+                                                                 TNC_MessageSubtype msg_subtype,
+                                                                 TNC_UInt32 src_imc_id,
+                                                                 TNC_UInt32 dst_imv_id)
+{
+       pa_tnc_msg_t *pa_tnc_msg;
+       pa_tnc_attr_t *attr;
+       pen_type_t type;
+       linked_list_t *attr_list;
+       imv_state_t *state;
+       imv_os_state_t *os_state;
+       enumerator_t *enumerator;
+       TNC_Result result;
+       bool fatal_error, assessment = FALSE;
+
+       if (!imv_os)
+       {
+               DBG1(DBG_IMV, "IMV \"%s\" has not been initialized", imv_name);
+               return TNC_RESULT_NOT_INITIALIZED;
+       }
+
+       /* get current IMV state */
+       if (!imv_os->get_state(imv_os, connection_id, &state))
+       {
+               return TNC_RESULT_FATAL;
+       }
+       os_state = (imv_os_state_t*)state;
+
+       /* parse received PA-TNC message and automatically handle any errors */ 
+       result = imv_os->receive_message(imv_os, state, msg, msg_vid,
+                                                       msg_subtype, src_imc_id, dst_imv_id, &pa_tnc_msg);
+
+       /* no parsed PA-TNC attributes available if an error occurred */
+       if (!pa_tnc_msg)
+       {
+               return result;
+       }
+
+       /* preprocess any IETF standard error attributes */
+       fatal_error = pa_tnc_msg->process_ietf_std_errors(pa_tnc_msg);
+
+       /* analyze PA-TNC attributes */
+       attr_list = linked_list_create();
+       enumerator = pa_tnc_msg->create_attribute_enumerator(pa_tnc_msg);
+       while (enumerator->enumerate(enumerator, &attr))
+       {
+               type = attr->get_type(attr);
+
+               if (type.vendor_id != PEN_IETF)
+               {
+                       continue;
+               }
+               switch (type.type)
+               {
+                       case IETF_ATTR_PRODUCT_INFORMATION:
+                       {
+                               ietf_attr_product_info_t *attr_cast;
+                               char *info;
+
+                               attr_cast = (ietf_attr_product_info_t*)attr;
+                               info = attr_cast->get_info(attr_cast, NULL, NULL);
+                               os_state->set_info(os_state, info);
+                               DBG1(DBG_IMV, "operating system is '%s'", info);
+                               
+                               /* request installed packages */
+                               attr = ietf_attr_attr_request_create(PEN_IETF,
+                                                                                       IETF_ATTR_INSTALLED_PACKAGES);
+                               attr_list->insert_last(attr_list, attr);
+                               break;
+                       }       
+                       case IETF_ATTR_INSTALLED_PACKAGES:
+                       { 
+                               ietf_attr_installed_packages_t *attr_cast;
+                               enumerator_t *e;
+                               chunk_t name, version;
+
+                               attr_cast = (ietf_attr_installed_packages_t*)attr;
+                               e = attr_cast->create_enumerator(attr_cast);
+                               while (e->enumerate(e, &name, &version))
+                               {
+                                       DBG1(DBG_IMV, "package '%.*s' %.*s", name.len, name.ptr,
+                                                                  version.len, version.ptr);
+                               }
+                               e->destroy(e);
+
+                               state->set_recommendation(state,
+                                                                         TNC_IMV_ACTION_RECOMMENDATION_ALLOW,
+                                                                         TNC_IMV_EVALUATION_RESULT_COMPLIANT); 
+                               assessment = TRUE;
+                               break;
+                       }
+                       default:
+                               break;
+               }               
+       }
+       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);
+               assessment = TRUE;
+       }
+       if (assessment)
+       {
+               attr_list->destroy_offset(attr_list, offsetof(pa_tnc_attr_t, destroy));
+               return imv_os->provide_recommendation(imv_os, connection_id, src_imc_id);
+       }
+
+       result = imv_os->send_message(imv_os, connection_id, TRUE, imv_id,
+                                                                 src_imc_id, attr_list);
+       attr_list->destroy(attr_list);
+
+       return result;
+ }
+
+/**
+ * see section 3.8.4 of TCG TNC IF-IMV Specification 1.3
+ */
+TNC_Result TNC_IMV_ReceiveMessage(TNC_IMVID imv_id,
+                                                                 TNC_ConnectionID connection_id,
+                                                                 TNC_BufferReference msg,
+                                                                 TNC_UInt32 msg_len,
+                                                                 TNC_MessageType msg_type)
+{
+       TNC_VendorID msg_vid;
+       TNC_MessageSubtype msg_subtype;
+
+       msg_vid = msg_type >> 8;
+       msg_subtype = msg_type & TNC_SUBTYPE_ANY;
+
+       return receive_message(imv_id, connection_id, 0, chunk_create(msg, msg_len),
+                                                  msg_vid,     msg_subtype, 0, TNC_IMVID_ANY);
+}
+
+/**
+ * see section 3.8.6 of TCG TNC IF-IMV Specification 1.3
+ */
+TNC_Result TNC_IMV_ReceiveMessageLong(TNC_IMVID imv_id,
+                                                                         TNC_ConnectionID connection_id,
+                                                                         TNC_UInt32 msg_flags,
+                                                                         TNC_BufferReference msg,
+                                                                         TNC_UInt32 msg_len,
+                                                                         TNC_VendorID msg_vid,
+                                                                         TNC_MessageSubtype msg_subtype,
+                                                                         TNC_UInt32 src_imc_id,
+                                                                         TNC_UInt32 dst_imv_id)
+{
+       return receive_message(imv_id, connection_id, msg_flags,
+                                                  chunk_create(msg, msg_len), msg_vid, msg_subtype,
+                                                  src_imc_id, dst_imv_id);
+}
+
+/**
+ * see section 3.8.7 of TCG TNC IF-IMV Specification 1.3
+ */
+TNC_Result TNC_IMV_SolicitRecommendation(TNC_IMVID imv_id,
+                                                                                TNC_ConnectionID connection_id)
+{
+       if (!imv_os)
+       {
+               DBG1(DBG_IMV, "IMV \"%s\" has not been initialized", imv_name);
+               return TNC_RESULT_NOT_INITIALIZED;
+       }
+       return imv_os->provide_recommendation(imv_os, connection_id,
+                                                                                          TNC_IMCID_ANY);
+}
+
+/**
+ * see section 3.8.8 of TCG TNC IF-IMV Specification 1.3
+ */
+TNC_Result TNC_IMV_BatchEnding(TNC_IMVID imv_id,
+                                                          TNC_ConnectionID connection_id)
+{
+       imv_state_t *state;
+       imv_os_state_t *os_state;
+       TNC_Result result = TNC_RESULT_SUCCESS;
+
+       if (!imv_os)
+       {
+               DBG1(DBG_IMV, "IMV \"%s\" has not been initialized", imv_name);
+               return TNC_RESULT_NOT_INITIALIZED;
+       }
+
+       /* get current IMV state */
+       if (!imv_os->get_state(imv_os, connection_id, &state))
+       {
+               return TNC_RESULT_FATAL;
+       }
+       os_state = (imv_os_state_t*)state;
+
+       if (os_state->get_info(os_state) == NULL)
+       {
+               pa_tnc_attr_t *attr;
+               linked_list_t *attr_list;
+
+               attr_list = linked_list_create();
+               attr = ietf_attr_attr_request_create(PEN_IETF,
+                                                                                        IETF_ATTR_PRODUCT_INFORMATION);
+               attr_list->insert_last(attr_list, attr);
+               result = imv_os->send_message(imv_os, connection_id, FALSE, imv_id,
+                                                                         TNC_IMCID_ANY, attr_list);
+               attr_list->destroy(attr_list);
+       }
+
+       return result;
+}
+
+/**
+ * see section 3.8.9 of TCG TNC IF-IMV Specification 1.3
+ */
+TNC_Result TNC_IMV_Terminate(TNC_IMVID imv_id)
+{
+       if (!imv_os)
+       {
+               DBG1(DBG_IMV, "IMV \"%s\" has not been initialized", imv_name);
+               return TNC_RESULT_NOT_INITIALIZED;
+       }
+       imv_os->destroy(imv_os);
+       imv_os = NULL;
+
+       return TNC_RESULT_SUCCESS;
+}
+
+/**
+ * see section 4.2.8.1 of TCG TNC IF-IMV Specification 1.3
+ */
+TNC_Result TNC_IMV_ProvideBindFunction(TNC_IMVID imv_id,
+                                                                          TNC_TNCS_BindFunctionPointer bind_function)
+{
+       if (!imv_os)
+       {
+               DBG1(DBG_IMV, "IMV \"%s\" has not been initialized", imv_name);
+               return TNC_RESULT_NOT_INITIALIZED;
+       }
+       return imv_os->bind_functions(imv_os, bind_function);
+}
diff --git a/src/libimcv/plugins/imv_os/imv_os_state.c b/src/libimcv/plugins/imv_os/imv_os_state.c
new file mode 100644 (file)
index 0000000..c367f72
--- /dev/null
@@ -0,0 +1,212 @@
+/*
+ * Copyright (C) 2012 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_os_state.h"
+
+#include <debug.h>
+
+typedef struct private_imv_os_state_t private_imv_os_state_t;
+
+/**
+ * Private data of an imv_os_state_t object.
+ */
+struct private_imv_os_state_t {
+
+       /**
+        * Public members of imv_os_state_t
+        */
+       imv_os_state_t public;
+
+       /**
+        * TNCCS connection ID
+        */
+       TNC_ConnectionID connection_id;
+
+       /**
+        * TNCCS connection state
+        */
+       TNC_ConnectionState state;
+
+       /**
+        * Does the TNCCS connection support long message types?
+        */
+       bool has_long;
+
+       /**
+        * Does the TNCCS connection support exclusive delivery?
+        */
+       bool has_excl;
+
+       /**
+        * Maximum PA-TNC message size for this TNCCS connection
+        */
+       u_int32_t max_msg_len;
+
+       /**
+        * IMV action recommendation
+        */
+       TNC_IMV_Action_Recommendation rec;
+
+       /**
+        * IMV evaluation result
+        */
+       TNC_IMV_Evaluation_Result eval;
+
+       /**
+        * OS Product Information
+        */
+       char *info;
+};
+
+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", "" },
+       { "de", "" },
+       { "fr", "" },
+       { "pl", "" }
+};
+
+METHOD(imv_state_t, get_connection_id, TNC_ConnectionID,
+       private_imv_os_state_t *this)
+{
+       return this->connection_id;
+}
+
+METHOD(imv_state_t, has_long, bool,
+       private_imv_os_state_t *this)
+{
+       return this->has_long;
+}
+
+METHOD(imv_state_t, has_excl, bool,
+       private_imv_os_state_t *this)
+{
+       return this->has_excl;
+}
+
+METHOD(imv_state_t, set_flags, void,
+       private_imv_os_state_t *this, bool has_long, bool has_excl)
+{
+       this->has_long = has_long;
+       this->has_excl = has_excl;
+}
+
+METHOD(imv_state_t, set_max_msg_len, void,
+       private_imv_os_state_t *this, u_int32_t max_msg_len)
+{
+       this->max_msg_len = max_msg_len;
+}
+
+METHOD(imv_state_t, get_max_msg_len, u_int32_t,
+       private_imv_os_state_t *this)
+{
+       return this->max_msg_len;
+}
+
+METHOD(imv_state_t, change_state, void,
+       private_imv_os_state_t *this, TNC_ConnectionState new_state)
+{
+       this->state = new_state;
+}
+
+METHOD(imv_state_t, get_recommendation, void,
+       private_imv_os_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_os_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_os_state_t *this, chunk_t preferred_language,
+       chunk_t *reason_string, chunk_t *reason_language)
+{
+       return FALSE;
+}
+
+METHOD(imv_state_t, destroy, void,
+       private_imv_os_state_t *this)
+{
+       free(this->info);
+       free(this);
+}
+
+METHOD(imv_os_state_t, set_info, void,
+       private_imv_os_state_t *this, char *info)
+{
+       this->info = strdup(info);
+}
+
+METHOD(imv_os_state_t, get_info, char*,
+       private_imv_os_state_t *this)
+{
+       return this->info;
+}
+
+/**
+ * Described in header.
+ */
+imv_state_t *imv_os_state_create(TNC_ConnectionID connection_id)
+{
+       private_imv_os_state_t *this;
+
+       INIT(this,
+               .public = {
+                       .interface = {
+                               .get_connection_id = _get_connection_id,
+                               .has_long = _has_long,
+                               .has_excl = _has_excl,
+                               .set_flags = _set_flags,
+                               .set_max_msg_len = _set_max_msg_len,
+                               .get_max_msg_len = _get_max_msg_len,
+                               .change_state = _change_state,
+                               .get_recommendation = _get_recommendation,
+                               .set_recommendation = _set_recommendation,
+                               .get_reason_string = _get_reason_string,
+                               .destroy = _destroy,
+                       },
+                       .set_info = _set_info,
+                       .get_info = _get_info,
+               },
+               .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;
+}
+
+
diff --git a/src/libimcv/plugins/imv_os/imv_os_state.h b/src/libimcv/plugins/imv_os/imv_os_state.h
new file mode 100644 (file)
index 0000000..14ac150
--- /dev/null
@@ -0,0 +1,59 @@
+/*
+ * Copyright (C) 2012 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_os_state_t imv_os_state
+ * @{ @ingroup imv_os_state
+ */
+
+#ifndef IMV_OS_STATE_H_
+#define IMV_OS_STATE_H_
+
+#include <imv/imv_state.h>
+#include <library.h>
+
+typedef struct imv_os_state_t imv_os_state_t;
+
+/**
+ * Internal state of an imv_os_t connection instance
+ */
+struct imv_os_state_t {
+
+       /**
+        * imv_state_t interface
+        */
+       imv_state_t interface;
+
+       /**
+        * Set OS Product Information
+        */
+       void (*set_info)(imv_os_state_t *this, char *info);
+
+       /**
+        * Get OS Product Information
+        */
+       char* (*get_info)(imv_os_state_t *this);
+
+};
+
+/**
+ * Create an imv_os_state_t instance
+ *
+ * @param id                   connection ID
+ */
+imv_state_t* imv_os_state_create(TNC_ConnectionID id);
+
+#endif /** IMV_OS_STATE_H_ @}*/
index 9259522..523a3b5 100755 (executable)
@@ -247,6 +247,16 @@ then
     echo -n " --enable-imv-scanner" >> $INSTALLSHELL
 fi
 
+if [ "$USE_IMC_OS" = "yes" ]
+then
+    echo -n " --enable-imc-os" >> $INSTALLSHELL
+fi
+
+if [ "$USE_IMV_OS" = "yes" ]
+then
+    echo -n " --enable-imv-os" >> $INSTALLSHELL
+fi
+
 if [ "$USE_IMC_ATTESTATION" = "yes" ]
 then
     echo -n " --enable-imc-attestation" >> $INSTALLSHELL
index d0c9188..5f6b0d6 100755 (executable)
@@ -58,6 +58,8 @@ USE_IMC_TEST="yes"
 USE_IMV_TEST="yes"
 USE_IMC_SCANNER="yes"
 USE_IMV_SCANNER="yes"
+USE_IMC_OS="yes"
+USE_IMV_OS="yes"
 USE_IMC_ATTESTATION="yes"
 USE_IMV_ATTESTATION="yes"
 USE_SQL="yes"