imv-swima: Created SWIMA IMV plugin
authorAndreas Steffen <andreas.steffen@strongswan.org>
Sat, 10 Jun 2017 08:23:28 +0000 (10:23 +0200)
committerAndreas Steffen <andreas.steffen@strongswan.org>
Sat, 8 Jul 2017 21:19:51 +0000 (23:19 +0200)
12 files changed:
conf/Makefile.am
conf/plugins/imv-swima.opt [new file with mode: 0644]
configure.ac
src/libimcv/Makefile.am
src/libimcv/plugins/imv_swima/Makefile.am [new file with mode: 0644]
src/libimcv/plugins/imv_swima/imv_swima.c [new file with mode: 0644]
src/libimcv/plugins/imv_swima/imv_swima_agent.c [new file with mode: 0644]
src/libimcv/plugins/imv_swima/imv_swima_agent.h [new file with mode: 0644]
src/libimcv/plugins/imv_swima/imv_swima_rest.c [new file with mode: 0644]
src/libimcv/plugins/imv_swima/imv_swima_rest.h [new file with mode: 0644]
src/libimcv/plugins/imv_swima/imv_swima_state.c [new file with mode: 0644]
src/libimcv/plugins/imv_swima/imv_swima_state.h [new file with mode: 0644]

index 6133a9c..4ded990 100644 (file)
@@ -66,6 +66,7 @@ plugins = \
        plugins/imv-os.opt \
        plugins/imv-scanner.opt \
        plugins/imv-swid.opt \
+       plugins/imv-swima.opt \
        plugins/imv-test.opt \
        plugins/ipseckey.opt \
        plugins/led.opt \
diff --git a/conf/plugins/imv-swima.opt b/conf/plugins/imv-swima.opt
new file mode 100644 (file)
index 0000000..1185bd3
--- /dev/null
@@ -0,0 +1,5 @@
+libimcv.plugins.imv-swima.rest_api_uri = 
+       HTTP URI of the SWID REST API.
+
+libimcv.plugins.imv-swima.rest_api_timeout = 120
+       Timeout of SWID REST API HTTP POST transaction.
index 6460b2e..e6e0402 100644 (file)
@@ -248,6 +248,7 @@ ARG_ENABL_SET([imv-attestation],[enable IMV attestation module.])
 ARG_ENABL_SET([imc-swid],       [enable IMC swid module.])
 ARG_ENABL_SET([imv-swid],       [enable IMV swid module.])
 ARG_ENABL_SET([imc-swima],      [enable IMC swima module.])
+ARG_ENABL_SET([imv-swima],      [enable IMV swima module.])
 ARG_ENABL_SET([imc-hcd],        [enable IMC hcd module.])
 ARG_ENABL_SET([imv-hcd],        [enable IMV hcd module.])
 ARG_ENABL_SET([tnc-ifmap],      [enable TNC IF-MAP module. Requires libxml])
@@ -423,7 +424,7 @@ if test x$eap_tls = xtrue -o x$eap_ttls = xtrue -o x$eap_peap = xtrue -o x$tnc_t
        tls=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$imc_os = xtrue -o x$imv_os = xtrue -o x$imc_attestation = xtrue -o x$imv_attestation = xtrue -o x$imc_swid = xtrue -o x$imv_swid = xtrue -o x$imc_swima = xtrue -o x$imc_hcd = xtrue -o x$imv_hcd = xtrue; then
+if test x$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$imv_attestation = xtrue -o x$imc_swid = xtrue -o x$imv_swid = xtrue -o x$imc_swima = xtrue -o x$imv_swima = xtrue -o x$imc_hcd = xtrue -o x$imv_hcd = xtrue; then
        imcv=true;
 fi
 
@@ -1002,7 +1003,7 @@ if test x$tss_tss2 = xtrue; then
        AC_SUBST(tss2_LIBS)
 fi
 
-if test x$imv_swid = xtrue; then
+if test x$imv_swid = xtrue -o x$imv_swima = xtrue; then
        PKG_CHECK_MODULES(json, [json-c], [],
                [PKG_CHECK_MODULES(json, [json])])
        AC_SUBST(json_CFLAGS)
@@ -1609,6 +1610,7 @@ AM_CONDITIONAL(USE_IMV_ATTESTATION, test x$imv_attestation = xtrue)
 AM_CONDITIONAL(USE_IMC_SWID, test x$imc_swid = xtrue)
 AM_CONDITIONAL(USE_IMV_SWID, test x$imv_swid = xtrue)
 AM_CONDITIONAL(USE_IMC_SWIMA, test x$imc_swima = xtrue)
+AM_CONDITIONAL(USE_IMV_SWIMA, test x$imv_swima = xtrue)
 AM_CONDITIONAL(USE_IMC_HCD, test x$imc_hcd = xtrue)
 AM_CONDITIONAL(USE_IMV_HCD, test x$imv_hcd = xtrue)
 AM_CONDITIONAL(USE_SOCKET_DEFAULT, test x$socket_default = xtrue)
@@ -1836,6 +1838,7 @@ AC_CONFIG_FILES([
        src/libimcv/plugins/imc_swid/Makefile
        src/libimcv/plugins/imv_swid/Makefile
        src/libimcv/plugins/imc_swima/Makefile
+       src/libimcv/plugins/imv_swima/Makefile
        src/libimcv/plugins/imc_hcd/Makefile
        src/libimcv/plugins/imv_hcd/Makefile
        src/charon/Makefile
index 9c34620..ab66bcc 100644 (file)
@@ -188,6 +188,10 @@ if USE_IMC_SWIMA
   SUBDIRS += plugins/imc_swima
 endif
 
+if USE_IMV_SWIMA
+  SUBDIRS += plugins/imv_swima
+endif
+
 if USE_IMC_HCD
   SUBDIRS += plugins/imc_hcd
 endif
diff --git a/src/libimcv/plugins/imv_swima/Makefile.am b/src/libimcv/plugins/imv_swima/Makefile.am
new file mode 100644 (file)
index 0000000..0c54841
--- /dev/null
@@ -0,0 +1,22 @@
+AM_CPPFLAGS = \
+       -I$(top_srcdir)/src/libstrongswan \
+       -I$(top_srcdir)/src/libtncif \
+       -I$(top_srcdir)/src/libtpmtss \
+       -I$(top_srcdir)/src/libimcv
+
+AM_CFLAGS = \
+       $(PLUGIN_CFLAGS) $(json_CFLAGS)
+
+imcv_LTLIBRARIES = imv-swima.la
+
+imv_swima_la_LIBADD = \
+       $(top_builddir)/src/libimcv/libimcv.la \
+       $(top_builddir)/src/libstrongswan/libstrongswan.la \
+       $(json_LIBS)
+
+imv_swima_la_SOURCES = \
+       imv_swima.c imv_swima_state.h imv_swima_state.c \
+       imv_swima_agent.h imv_swima_agent.c \
+       imv_swima_rest.h imv_swima_rest.c
+
+imv_swima_la_LDFLAGS = -module -avoid-version -no-undefined
diff --git a/src/libimcv/plugins/imv_swima/imv_swima.c b/src/libimcv/plugins/imv_swima/imv_swima.c
new file mode 100644 (file)
index 0000000..0d78ea0
--- /dev/null
@@ -0,0 +1,24 @@
+/*
+ * Copyright (C) 2017 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_swima_agent.h"
+
+static const char imv_name[] = "SWIMA";
+static const imv_agent_create_t imv_agent_create = imv_swima_agent_create;
+
+/* include generic TGC TNC IF-IMV API code below */
+
+#include <imv/imv_if.h>
+
diff --git a/src/libimcv/plugins/imv_swima/imv_swima_agent.c b/src/libimcv/plugins/imv_swima/imv_swima_agent.c
new file mode 100644 (file)
index 0000000..5d653ff
--- /dev/null
@@ -0,0 +1,778 @@
+/*
+ * Copyright (C) 2017 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.
+ */
+
+#define _GNU_SOURCE
+#include <stdio.h>
+
+#include "imv_swima_agent.h"
+#include "imv_swima_state.h"
+#include "imv_swima_rest.h"
+
+#include <imcv.h>
+#include <imv/imv_agent.h>
+#include <imv/imv_msg.h>
+#include "tcg/seg/tcg_seg_attr_max_size.h"
+#include "tcg/seg/tcg_seg_attr_seg_env.h"
+#include "ietf/swima/ietf_swima_attr_req.h"
+#include "ietf/swima/ietf_swima_attr_sw_inv.h"
+#include "ietf/swima/ietf_swima_attr_sw_ev.h"
+#include "swima/swima_error.h"
+#include "swima/swima_inventory.h"
+#include "swima/swima_events.h"
+#include "swima/swima_data_model.h"
+
+#include <tncif_names.h>
+#include <tncif_pa_subtypes.h>
+
+#include <pen/pen.h>
+#include <utils/debug.h>
+#include <bio/bio_reader.h>
+
+typedef struct private_imv_swima_agent_t private_imv_swima_agent_t;
+
+/* Subscribed PA-TNC message subtypes */
+static pen_type_t msg_types[] = {
+       { PEN_IETF, PA_SUBTYPE_IETF_SW }
+};
+
+/**
+ * Flag set when corresponding attribute has been received
+ */
+enum imv_swima_attr_t {
+       IMV_SWIMA_ATTR_SW_INV =    (1<<0),
+       IMV_SWIMA_ATTR_SW_ID_INV = (1<<1)
+};
+
+/**
+ * Private data of an imv_swima_agent_t object.
+ */
+struct private_imv_swima_agent_t {
+
+       /**
+        * Public members of imv_swima_agent_t
+        */
+       imv_agent_if_t public;
+
+       /**
+        * IMV agent responsible for generic functions
+        */
+       imv_agent_t *agent;
+
+       /**
+        * REST API to strongTNC manager
+        */
+       imv_swima_rest_t *rest_api;
+
+};
+
+METHOD(imv_agent_if_t, bind_functions, TNC_Result,
+       private_imv_swima_agent_t *this, TNC_TNCS_BindFunctionPointer bind_function)
+{
+       return this->agent->bind_functions(this->agent, bind_function);
+}
+
+METHOD(imv_agent_if_t, notify_connection_change, TNC_Result,
+       private_imv_swima_agent_t *this, TNC_ConnectionID id,
+       TNC_ConnectionState new_state)
+{
+       imv_state_t *state;
+
+       switch (new_state)
+       {
+               case TNC_CONNECTION_STATE_CREATE:
+                       state = imv_swima_state_create(id);
+                       return this->agent->create_state(this->agent, state);
+               case TNC_CONNECTION_STATE_DELETE:
+                       return this->agent->delete_state(this->agent, id);
+               default:
+                       return this->agent->change_state(this->agent, id, new_state, NULL);
+       }
+}
+
+/**
+ * Process a received message
+ */
+static TNC_Result receive_msg(private_imv_swima_agent_t *this,
+                                                         imv_state_t *state, imv_msg_t *in_msg)
+{
+       imv_swima_state_t *swima_state;
+       imv_msg_t *out_msg;
+       enumerator_t *enumerator;
+       pa_tnc_attr_t *attr;
+       TNC_Result result;
+       bool fatal_error = FALSE;
+
+       /* generate an outgoing PA-TNC message - we might need it */
+       out_msg = imv_msg_create_as_reply(in_msg);
+
+       /* parse received PA-TNC message and handle local and remote errors */
+       result = in_msg->receive(in_msg, out_msg, &fatal_error);
+       if (result != TNC_RESULT_SUCCESS)
+       {
+               out_msg->destroy(out_msg);
+               return result;
+       }
+
+       swima_state = (imv_swima_state_t*)state;
+
+       /* analyze PA-TNC attributes */
+       enumerator = in_msg->create_attribute_enumerator(in_msg);
+       while (enumerator->enumerate(enumerator, &attr))
+       {
+               uint32_t request_id = 0, last_eid, eid_epoch;
+               swima_inventory_t *inventory;
+               swima_events_t *events;
+               pen_type_t type;
+
+               type = attr->get_type(attr);
+
+        if (type.vendor_id != PEN_IETF)
+        {
+            continue;
+        }
+
+               switch (type.type)
+               {
+                       case IETF_ATTR_PA_TNC_ERROR:
+                       {
+                               ietf_attr_pa_tnc_error_t *error_attr;
+                               pen_type_t error_code;
+                               chunk_t msg_info, description;
+                               bio_reader_t *reader;
+                               uint32_t max_attr_size;
+                               bool success;
+
+                               error_attr = (ietf_attr_pa_tnc_error_t*)attr;
+                               error_code = error_attr->get_error_code(error_attr);
+
+                               if (error_code.vendor_id != PEN_IETF ||
+                                       error_code.type <= PA_ERROR_PA_TNC_MSG_ROOF)
+                               {
+                                       continue;
+                               }
+                               msg_info = error_attr->get_msg_info(error_attr);
+                               reader = bio_reader_create(msg_info);
+                               success = reader->read_uint32(reader, &request_id);
+
+                               DBG1(DBG_IMV, "received PA-TNC error '%N' for request %d",
+                                        pa_tnc_error_code_names, error_code.type, request_id);
+                               if (!success)
+                               {
+                                       reader->destroy(reader);
+                                       continue;
+                               }
+                               if (error_code.type == PA_ERROR_SW_RESPONSE_TOO_LARGE)
+                               {
+                                       if (!reader->read_uint32(reader, &max_attr_size))
+                                       {
+                                               reader->destroy(reader);
+                                               continue;
+                                       }
+                                       DBG1(DBG_IMV, "  maximum PA-TNC attribute size is %u bytes",
+                                               max_attr_size);
+                               }
+                               description = reader->peek(reader);
+                               if (description.len)
+                               { 
+                                       DBG1(DBG_IMV, "  description: %.*s", description.len,
+                                                                                                                description.ptr);
+                               }
+                               reader->destroy(reader);
+                               break;
+                       }
+                       case IETF_ATTR_SW_ID_INVENTORY:
+                       {
+                               ietf_swima_attr_sw_inv_t *attr_cast;
+                               uint32_t missing;
+                               int sw_id_count;
+
+                               state->set_action_flags(state, IMV_SWIMA_ATTR_SW_ID_INV);
+
+                               attr_cast = (ietf_swima_attr_sw_inv_t*)attr;
+                               request_id = attr_cast->get_request_id(attr_cast);
+                               inventory = attr_cast->get_inventory(attr_cast);
+                               last_eid = inventory->get_eid(inventory, &eid_epoch);
+                               sw_id_count = inventory->get_count(inventory);
+                               missing = attr_cast->get_record_count(attr_cast);
+                               swima_state->set_missing(swima_state, missing);
+
+                               DBG2(DBG_IMV, "received software identity inventory with "
+                                        "%d item%s for request %d at eid %d of epoch 0x%08x, "
+                                        "%d item%s to follow", sw_id_count,
+                                        (sw_id_count == 1) ? "" : "s", request_id, last_eid,
+                                        eid_epoch, missing, (missing == 1) ? "" : "s");
+
+                               if (request_id == swima_state->get_request_id(swima_state))
+                               {
+                                       swima_state->set_inventory(swima_state, inventory);
+                                       swima_state->set_count(swima_state, sw_id_count, 0,
+                                                                                  in_msg->get_src_id(in_msg));
+                               }
+                               else
+                               {
+                                       DBG1(DBG_IMV, "no workitem found for software identity "
+                                                                 "inventory with request ID %d", request_id);
+                               }
+                               attr_cast->clear_inventory(attr_cast);
+                               break;
+                        }
+                       case IETF_ATTR_SW_INVENTORY:
+                       {
+                               ietf_swima_attr_sw_inv_t *attr_cast;
+                               swima_record_t *sw_record;
+                               json_object *jobj, *jarray, *jstring;
+                               pen_type_t data_model;
+                               chunk_t tag;
+                               char *tag_str;
+                               uint32_t missing;
+                               int sw_count;
+                               enumerator_t *e;
+
+                               state->set_action_flags(state, IMV_SWIMA_ATTR_SW_INV);
+
+                               attr_cast = (ietf_swima_attr_sw_inv_t*)attr;
+                               request_id = attr_cast->get_request_id(attr_cast);
+                               inventory = attr_cast->get_inventory(attr_cast);
+                               last_eid = inventory->get_eid(inventory, &eid_epoch);
+                               sw_count = inventory->get_count(inventory);
+                               missing = attr_cast->get_record_count(attr_cast);
+                               swima_state->set_missing(swima_state, missing);
+
+                               DBG2(DBG_IMV, "received software inventory with %d item%s for "
+                                        "request %d at eid %d of epoch 0x%08x, %d item%s to follow",
+                                        sw_count, (sw_count == 1) ? "" : "s", request_id,
+                                        last_eid, eid_epoch, missing, (missing == 1) ? "" : "s");
+
+                               if (request_id == swima_state->get_request_id(swima_state))
+                               {
+                                       swima_state->set_count(swima_state, 0, sw_count,
+                                                                                 in_msg->get_src_id(in_msg));
+
+                                       if (this->rest_api)
+                                       {
+                                               jobj = json_object_new_object();
+                                               jarray = json_object_new_array();
+                                               json_object_object_add(jobj, "data", jarray);
+
+                                               e = inventory->create_enumerator(inventory);
+                                               while (e->enumerate(e, &sw_record))
+                                               {
+                                                       tag = sw_record->get_record(sw_record);
+                                                       DBG3(DBG_IMV, "%.*s", tag.len, tag.ptr);
+
+                                                       data_model = sw_record->get_data_model(sw_record);
+                                                       if (!pen_type_equals(data_model,
+                                                                               swima_data_model_iso_2015_swid_xml))
+                                                       {
+                                                               DBG1(DBG_IMV, "only ISO/IEC 19770-2-2015 XML "
+                                                                                         "data model supported");
+                                                               continue;
+                                                       }
+
+                                                       tag_str = strndup(tag.ptr, tag.len);
+                                                       jstring = json_object_new_string(tag_str);
+                                                       json_object_array_add(jarray, jstring);
+                                                       free(tag_str);
+                                               }
+                                               e->destroy(e);
+
+                                               if (this->rest_api->post(this->rest_api,
+                                                               "swid/add-tags/", jobj, NULL) != SUCCESS)
+                                               {
+                                                       DBG1(DBG_IMV, "error in REST API add-tags request");
+                                               }
+                                               json_object_put(jobj);
+                                       }
+                               }
+                               else
+                               {
+                                       DBG1(DBG_IMV, "no workitem found for SWID tag inventory "
+                                                                 "with request ID %d", request_id);
+                               }
+                               attr_cast->clear_inventory(attr_cast);
+                               break;
+                       }
+                       case IETF_ATTR_SW_ID_EVENTS:
+                       {
+                               ietf_swima_attr_sw_ev_t *attr_cast;
+                               uint32_t missing;
+                               int sw_ev_count;
+
+                               state->set_action_flags(state, IMV_SWIMA_ATTR_SW_ID_INV);
+
+                               attr_cast = (ietf_swima_attr_sw_ev_t*)attr;
+                               request_id = attr_cast->get_request_id(attr_cast);
+                               events = attr_cast->get_events(attr_cast);
+                               last_eid = events->get_eid(events, &eid_epoch, NULL);
+                               sw_ev_count = events->get_count(events);
+                               missing = attr_cast->get_event_count(attr_cast);
+                               swima_state->set_missing(swima_state, missing);
+
+                               DBG2(DBG_IMV, "received software identity events with "
+                                        "%d item%s for request %d at eid %d of epoch 0x%08x, "
+                                        "%d item%s to follow", sw_ev_count,
+                                        (sw_ev_count == 1) ? "" : "s", request_id, last_eid,
+                                        eid_epoch, missing, (missing == 1) ? "" : "s");
+
+                               if (request_id == swima_state->get_request_id(swima_state))
+                               {
+                                       swima_state->set_events(swima_state, events);
+                                       swima_state->set_count(swima_state, sw_ev_count, 0,
+                                                                                  in_msg->get_src_id(in_msg));
+                               }
+                               else
+                               {
+                                       DBG1(DBG_IMV, "no workitem found for software identity "
+                                                                 "evemts with request ID %d", request_id);
+                               }
+                               attr_cast->clear_events(attr_cast);
+                               break;
+
+                       }
+                       default:
+                               break;
+                }
+       }
+       enumerator->destroy(enumerator);
+
+       if (fatal_error)
+       {
+               state->set_recommendation(state,
+                                                               TNC_IMV_ACTION_RECOMMENDATION_NO_RECOMMENDATION,
+                                                               TNC_IMV_EVALUATION_RESULT_ERROR);
+               result = out_msg->send_assessment(out_msg);
+               if (result == TNC_RESULT_SUCCESS)
+               {
+                       result = this->agent->provide_recommendation(this->agent, state);
+               }
+       }
+       else
+       {
+               /* send PA-TNC message with the EXCL flag set */
+               result = out_msg->send(out_msg, TRUE);
+       }
+       out_msg->destroy(out_msg);
+
+       return result;
+}
+
+METHOD(imv_agent_if_t, receive_message, TNC_Result,
+       private_imv_swima_agent_t *this, TNC_ConnectionID id,
+       TNC_MessageType msg_type, chunk_t msg)
+{
+       imv_state_t *state;
+       imv_msg_t *in_msg;
+       TNC_Result result;
+
+       if (!this->agent->get_state(this->agent, id, &state))
+       {
+               return TNC_RESULT_FATAL;
+       }
+       in_msg = imv_msg_create_from_data(this->agent, state, id, msg_type, msg);
+       result = receive_msg(this, state, in_msg);
+       in_msg->destroy(in_msg);
+
+       return result;
+}
+
+METHOD(imv_agent_if_t, receive_message_long, TNC_Result,
+       private_imv_swima_agent_t *this, TNC_ConnectionID id,
+       TNC_UInt32 src_imc_id, TNC_UInt32 dst_imv_id,
+       TNC_VendorID msg_vid, TNC_MessageSubtype msg_subtype, chunk_t msg)
+{
+       imv_state_t *state;
+       imv_msg_t *in_msg;
+       TNC_Result result;
+
+       if (!this->agent->get_state(this->agent, id, &state))
+       {
+               return TNC_RESULT_FATAL;
+       }
+       in_msg = imv_msg_create_from_long_data(this->agent, state, id,
+                                       src_imc_id, dst_imv_id, msg_vid, msg_subtype, msg);
+       result = receive_msg(this, state, in_msg);
+       in_msg->destroy(in_msg);
+
+       return result;
+
+}
+
+METHOD(imv_agent_if_t, batch_ending, TNC_Result,
+       private_imv_swima_agent_t *this, TNC_ConnectionID id)
+{
+       imv_msg_t *out_msg;
+       imv_state_t *state;
+       imv_session_t *session;
+       imv_workitem_t *workitem;
+       imv_swima_state_t *swima_state;
+       imv_swima_handshake_state_t handshake_state;
+       pa_tnc_attr_t *attr;
+       TNC_IMVID imv_id;
+       TNC_Result result = TNC_RESULT_SUCCESS;
+       bool no_workitems = TRUE;
+       uint32_t request_id, received;
+       uint8_t flags;
+       enumerator_t *enumerator;
+
+       if (!this->agent->get_state(this->agent, id, &state))
+       {
+               return TNC_RESULT_FATAL;
+       }
+       swima_state = (imv_swima_state_t*)state;
+       handshake_state = swima_state->get_handshake_state(swima_state);
+       session = state->get_session(state);
+       imv_id = this->agent->get_id(this->agent);
+
+       if (handshake_state == IMV_SWIMA_STATE_END)
+       {
+               return TNC_RESULT_SUCCESS;
+       }
+
+       /* Create an empty out message - we might need it */
+       out_msg = imv_msg_create(this->agent, state, id, imv_id,
+                                                        swima_state->get_imc_id(swima_state),
+                                                        msg_types[0]);
+
+       if (!imcv_db)
+       {
+               DBG2(DBG_IMV, "no workitems available - no evaluation possible");
+               state->set_recommendation(state,
+                                                       TNC_IMV_ACTION_RECOMMENDATION_ALLOW,
+                                                       TNC_IMV_EVALUATION_RESULT_DONT_KNOW);
+               result = out_msg->send_assessment(out_msg);
+               out_msg->destroy(out_msg);
+               swima_state->set_handshake_state(swima_state, IMV_SWIMA_STATE_END);
+
+               if (result != TNC_RESULT_SUCCESS)
+               {
+                       return result;
+               }
+               return this->agent->provide_recommendation(this->agent, state);
+       }
+
+       /* Look for SWID tag workitem and create SWID tag request */
+       if (handshake_state == IMV_SWIMA_STATE_INIT &&
+               session->get_policy_started(session))
+       {
+               size_t max_attr_size = SWIMA_MAX_ATTR_SIZE;
+               size_t max_seg_size;
+               ietf_swima_attr_req_t *cast_attr;
+               seg_contract_t *contract;
+               seg_contract_manager_t *contracts;
+               swima_inventory_t *targets;
+               uint32_t earliest_eid = 0;
+               char buf[BUF_LEN];
+
+               enumerator = session->create_workitem_enumerator(session);
+               if (enumerator)
+               {
+                       while (enumerator->enumerate(enumerator, &workitem))
+                       {
+                               if (workitem->get_imv_id(workitem) != TNC_IMVID_ANY ||
+                                       workitem->get_type(workitem) != IMV_WORKITEM_SWID_TAGS)
+                               {
+                                       continue;
+                               }
+                               
+                               flags = IETF_SWIMA_ATTR_REQ_FLAG_NONE;
+                               if (strchr(workitem->get_arg_str(workitem), 'R'))
+                               {
+                                       flags |= IETF_SWIMA_ATTR_REQ_FLAG_R;
+                               }
+                               if (strchr(workitem->get_arg_str(workitem), 'S'))
+                               {
+                                       flags |= IETF_SWIMA_ATTR_REQ_FLAG_S;
+                               }
+                               if (strchr(workitem->get_arg_str(workitem), 'C'))
+                               {
+                                       flags |= IETF_SWIMA_ATTR_REQ_FLAG_C;
+                               }
+
+                               /* Determine maximum PA-TNC attribute segment size */
+                               max_seg_size = state->get_max_msg_len(state)
+                                                               - PA_TNC_HEADER_SIZE 
+                                                               - PA_TNC_ATTR_HEADER_SIZE
+                                                               - TCG_SEG_ATTR_SEG_ENV_HEADER;
+
+                               /* Announce support of PA-TNC segmentation to IMC */
+                               contract = seg_contract_create(msg_types[0], max_attr_size,
+                                                                       max_seg_size, TRUE, imv_id, FALSE);
+                               contract->get_info_string(contract, buf, BUF_LEN, TRUE);
+                               DBG2(DBG_IMV, "%s", buf);
+                               contracts = state->get_contracts(state);
+                               contracts->add_contract(contracts, contract);
+                               attr = tcg_seg_attr_max_size_create(max_attr_size,
+                                                                                                       max_seg_size, TRUE);
+                               out_msg->add_attribute(out_msg, attr);
+
+                               /* Issue a SWID request */
+                               request_id = workitem->get_id(workitem);
+                               swima_state->set_request_id(swima_state, request_id);
+                               attr = ietf_swima_attr_req_create(flags, request_id);
+
+                               /* Request software identifier events */
+                               targets = swima_inventory_create();
+                               targets->set_eid(targets, earliest_eid, 0);
+                               cast_attr = (ietf_swima_attr_req_t*)attr;
+                               cast_attr->set_targets(cast_attr, targets);
+
+                               out_msg->add_attribute(out_msg, attr);
+                               workitem->set_imv_id(workitem, imv_id);
+                               no_workitems = FALSE;
+                               DBG2(DBG_IMV, "IMV %d issues sw request %d", imv_id, request_id);
+                               break;
+                       }
+                       enumerator->destroy(enumerator);
+
+                       if (no_workitems)
+                       {
+                               DBG2(DBG_IMV, "IMV %d has no workitems - "
+                                                         "no evaluation requested", imv_id);
+                               state->set_recommendation(state,
+                                                               TNC_IMV_ACTION_RECOMMENDATION_ALLOW,
+                                                               TNC_IMV_EVALUATION_RESULT_DONT_KNOW);
+                       }
+                       handshake_state = IMV_SWIMA_STATE_WORKITEMS;
+                       swima_state->set_handshake_state(swima_state, handshake_state);
+               }
+       }
+
+       received = state->get_action_flags(state);
+
+       if (handshake_state == IMV_SWIMA_STATE_WORKITEMS &&
+          (received & (IMV_SWIMA_ATTR_SW_INV|IMV_SWIMA_ATTR_SW_ID_INV)) &&
+               swima_state->get_missing(swima_state) == 0)
+       {
+               TNC_IMV_Evaluation_Result eval;
+               TNC_IMV_Action_Recommendation rec;
+               char result_str[BUF_LEN], *error_str = "", *command;
+               char *target_str;
+               int tag_id_count, tag_count, i;
+               json_object *jrequest, *jresponse, *jvalue;
+               ietf_swima_attr_req_t *cast_attr;
+               swima_inventory_t *targets;
+               swima_record_t *target;
+               status_t status = SUCCESS;
+
+               if (this->rest_api && (received & IMV_SWIMA_ATTR_SW_ID_INV))
+               {
+                       if (asprintf(&command, "sessions/%d/swid-measurement/",
+                                                session->get_session_id(session, NULL, NULL)) < 0)
+                       {
+                               error_str = "allocation of command string failed";
+                               status = FAILED;
+                       }
+                       else
+                       {
+                               jrequest = swima_state->get_inventory(swima_state);
+                               status = this->rest_api->post(this->rest_api, command,
+                                                                                         jrequest, &jresponse);
+                               if (status == FAILED)
+                               {
+                                       error_str = "error in REST API swid-measurement request";
+                               }
+                               free(command);
+                       }
+               }
+
+               switch (status)
+               {
+                       case SUCCESS:
+                               enumerator = session->create_workitem_enumerator(session);
+                               while (enumerator->enumerate(enumerator, &workitem))
+                               {
+                                       if (workitem->get_type(workitem) == IMV_WORKITEM_SWID_TAGS)
+                                       {
+                                               swima_state->get_count(swima_state, &tag_id_count,
+                                                                                                                 &tag_count);
+                                               snprintf(result_str, BUF_LEN, "received inventory of "
+                                                                "%d SWID tag ID%s and %d SWID tag%s",
+                                                                tag_id_count, (tag_id_count == 1) ? "" : "s",
+                                                                tag_count, (tag_count == 1) ? "" : "s");
+                                               session->remove_workitem(session, enumerator);
+
+                                               eval = TNC_IMV_EVALUATION_RESULT_COMPLIANT;
+                                               rec = workitem->set_result(workitem, result_str, eval);
+                                               state->update_recommendation(state, rec, eval);
+                                               imcv_db->finalize_workitem(imcv_db, workitem);
+                                               workitem->destroy(workitem);
+                                               break;
+                                       }
+                               }
+                               enumerator->destroy(enumerator);
+                               break;
+                       case NEED_MORE:
+                               if (received & IMV_SWIMA_ATTR_SW_INV)
+                               {
+                                       error_str = "not all requested SWID tags were received";
+                                       status = FAILED;
+                                       json_object_put(jresponse);
+                                       break;
+                               }
+                               if (json_object_get_type(jresponse) != json_type_array)
+                               {
+                                       error_str = "response was not a json_array";
+                                       status = FAILED;
+                                       json_object_put(jresponse);
+                                       break;
+                               }
+
+                               /* Create an IETF SW Request attribute */
+                               attr = ietf_swima_attr_req_create(IETF_SWIMA_ATTR_REQ_FLAG_NONE,
+                                                               swima_state->get_request_id(swima_state));
+                               tag_id_count = json_object_array_length(jresponse);
+                               DBG1(DBG_IMV, "%d SWID tag target%s", tag_id_count,
+                                                         (tag_id_count == 1) ? "" : "s");
+                               swima_state->set_missing(swima_state, tag_id_count);
+                               targets = swima_inventory_create();
+
+                               for (i = 0; i < tag_id_count; i++)
+                               {
+                                       jvalue = json_object_array_get_idx(jresponse, i);
+                                       if (json_object_get_type(jvalue) != json_type_string)
+                                       {
+                                               error_str = "json_string element expected in json_array";
+                                               status = FAILED;
+                                               json_object_put(jresponse);
+                                               break;
+                                       }
+                                       target_str = (char*)json_object_get_string(jvalue);
+                                       DBG1(DBG_IMV, "  %s", target_str);
+                                       target = swima_record_create(0, chunk_from_str(target_str),
+                                                                                                       chunk_empty);
+                                       targets->add(targets, target);
+                               }
+                               json_object_put(jresponse);
+
+                               cast_attr = (ietf_swima_attr_req_t*)attr;
+                               cast_attr->set_targets(cast_attr, targets);
+                               targets->destroy(targets);
+                               out_msg->add_attribute(out_msg, attr);
+                               break;
+                       case FAILED:
+                       default:
+                               break;
+               }
+
+               if (status == FAILED)
+               {
+                       enumerator = session->create_workitem_enumerator(session);
+                       while (enumerator->enumerate(enumerator, &workitem))
+                       {
+                               if (workitem->get_type(workitem) == IMV_WORKITEM_SWID_TAGS)
+                               {
+                                       session->remove_workitem(session, enumerator);
+                                       eval = TNC_IMV_EVALUATION_RESULT_ERROR;
+                                       rec = workitem->set_result(workitem, error_str, eval);
+                                       state->update_recommendation(state, rec, eval);
+                                       imcv_db->finalize_workitem(imcv_db, workitem);
+                                       workitem->destroy(workitem);
+                                       break;
+                               }
+                       }
+                       enumerator->destroy(enumerator);
+               }
+       }
+
+       /* finalized all workitems ? */
+       if (handshake_state == IMV_SWIMA_STATE_WORKITEMS &&
+               session->get_workitem_count(session, imv_id) == 0)
+       {
+               result = out_msg->send_assessment(out_msg);
+               out_msg->destroy(out_msg);
+               swima_state->set_handshake_state(swima_state, IMV_SWIMA_STATE_END);
+
+               if (result != TNC_RESULT_SUCCESS)
+               {
+                       return result;
+               }
+               return this->agent->provide_recommendation(this->agent, state);
+       }
+
+       /* send non-empty PA-TNC message with excl flag not set */
+       if (out_msg->get_attribute_count(out_msg))
+       {
+               result = out_msg->send(out_msg, FALSE);
+       }
+       out_msg->destroy(out_msg);
+
+       return result;
+}
+
+METHOD(imv_agent_if_t, solicit_recommendation, TNC_Result,
+       private_imv_swima_agent_t *this, TNC_ConnectionID id)
+{
+       imv_state_t *state;
+
+       if (!this->agent->get_state(this->agent, id, &state))
+       {
+               return TNC_RESULT_FATAL;
+       }
+       return this->agent->provide_recommendation(this->agent, state);
+}
+
+METHOD(imv_agent_if_t, destroy, void,
+       private_imv_swima_agent_t *this)
+{
+       DESTROY_IF(this->rest_api);
+       this->agent->destroy(this->agent);
+       free(this);
+}
+
+/**
+ * Described in header.
+ */
+imv_agent_if_t *imv_swima_agent_create(const char *name, TNC_IMVID id,
+                                                                                TNC_Version *actual_version)
+{
+       private_imv_swima_agent_t *this;
+       imv_agent_t *agent;
+       char *rest_api_uri;
+       u_int rest_api_timeout;
+
+       agent = imv_agent_create(name, msg_types, countof(msg_types), id,
+                                                        actual_version);
+       if (!agent)
+       {
+               return NULL;
+       }
+       agent->add_non_fatal_attr_type(agent,
+                               pen_type_create(PEN_TCG, TCG_SEG_MAX_ATTR_SIZE_REQ));
+
+       INIT(this,
+               .public = {
+                       .bind_functions = _bind_functions,
+                       .notify_connection_change = _notify_connection_change,
+                       .receive_message = _receive_message,
+                       .receive_message_long = _receive_message_long,
+                       .batch_ending = _batch_ending,
+                       .solicit_recommendation = _solicit_recommendation,
+                       .destroy = _destroy,
+               },
+               .agent = agent,
+       );
+
+       rest_api_uri = lib->settings->get_str(lib->settings,
+                                               "%s.plugins.imv-swima.rest_api_uri", NULL, lib->ns);
+       rest_api_timeout = lib->settings->get_int(lib->settings,
+                                               "%s.plugins.imv-swima.rest_api_timeout", 120, lib->ns);
+       if (rest_api_uri)
+       {
+               this->rest_api = imv_swima_rest_create(rest_api_uri, rest_api_timeout);
+       }
+
+       return &this->public;
+}
+
diff --git a/src/libimcv/plugins/imv_swima/imv_swima_agent.h b/src/libimcv/plugins/imv_swima/imv_swima_agent.h
new file mode 100644 (file)
index 0000000..d07c774
--- /dev/null
@@ -0,0 +1,36 @@
+/*
+ * Copyright (C) 2017 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_swima_agent_t imv_swima_agent
+ * @{ @ingroup imv_swima
+ */
+
+#ifndef IMV_SWIMA_AGENT_H_
+#define IMV_SWIMA_AGENT_H_
+
+#include <imv/imv_agent_if.h>
+
+/**
+ * Creates an SWID IMV agent
+ *
+ * @param name                                 Name of the IMV
+ * @param id                                   ID of the IMV
+ * @param actual_version               TNC IF-IMV version
+ */
+imv_agent_if_t* imv_swima_agent_create(const char* name, TNC_IMVID id,
+                                                                          TNC_Version *actual_version);
+
+#endif /** IMV_SWIMA_AGENT_H_ @}*/
diff --git a/src/libimcv/plugins/imv_swima/imv_swima_rest.c b/src/libimcv/plugins/imv_swima/imv_swima_rest.c
new file mode 100644 (file)
index 0000000..b82e38a
--- /dev/null
@@ -0,0 +1,124 @@
+/*
+ * Copyright (C) 2017 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.
+ */
+
+#define _GNU_SOURCE
+#include <stdio.h>
+
+#include "imv_swima_rest.h"
+
+typedef struct private_imv_swima_rest_t private_imv_swima_rest_t;
+
+/**
+ * Private data of an imv_swima_rest_t object.
+ */
+struct private_imv_swima_rest_t {
+
+       /**
+        * Public members of imv_swima_rest_t
+        */
+       imv_swima_rest_t public;
+
+       /**
+        * URI of REST API
+        */
+       char *uri;
+
+       /**
+        * Timeout of REST API connection
+        */
+       u_int timeout;
+
+};
+
+#define HTTP_STATUS_CODE_PRECONDITION_FAILED   412
+
+METHOD(imv_swima_rest_t, post, status_t,
+       private_imv_swima_rest_t *this, char *command, json_object *jrequest,
+       json_object **jresponse)
+{
+       struct json_tokener *tokener;
+       chunk_t data, response = chunk_empty;
+       status_t status;
+       char *uri;
+       int code;
+
+       if (asprintf(&uri, "%s%s",this->uri, command) < 0)
+       {
+               return FAILED;
+       }
+       data = chunk_from_str((char*)json_object_to_json_string(jrequest));
+
+       status = lib->fetcher->fetch(lib->fetcher, uri, &response,
+                               FETCH_TIMEOUT, this->timeout,
+                               FETCH_REQUEST_DATA, data,
+                               FETCH_REQUEST_TYPE, "application/json; charset=utf-8",
+                               FETCH_REQUEST_HEADER, "Accept: application/json",
+                               FETCH_REQUEST_HEADER, "Expect:",
+                               FETCH_RESPONSE_CODE, &code,
+                               FETCH_END);
+       free(uri);
+
+       if (status != SUCCESS)
+       {
+               if (code != HTTP_STATUS_CODE_PRECONDITION_FAILED || !response.ptr)
+               {
+                       DBG2(DBG_IMV, "REST http request failed with status code: %d", code);
+                       status = FAILED;
+               }
+               else
+               {
+                       if (jresponse)
+                       {
+                               /* Parse HTTP response into a JSON object */
+                               tokener = json_tokener_new();
+                               *jresponse = json_tokener_parse_ex(tokener, response.ptr,
+                                                                                                                       response.len);
+                               json_tokener_free(tokener);
+                       }
+                       status = NEED_MORE;
+               }
+       }
+       free(response.ptr);
+
+       return status;
+}
+
+METHOD(imv_swima_rest_t, destroy, void,
+       private_imv_swima_rest_t *this)
+{
+       free(this->uri);
+       free(this);
+}
+
+/**
+ * Described in header.
+ */
+imv_swima_rest_t *imv_swima_rest_create(char *uri, u_int timeout)
+{
+       private_imv_swima_rest_t *this;
+
+       INIT(this,
+               .public = {
+                       .post = _post,
+                       .destroy = _destroy,
+               },
+               .uri = strdup(uri),
+               .timeout = timeout,
+       );
+
+       return &this->public;
+}
+
+
diff --git a/src/libimcv/plugins/imv_swima/imv_swima_rest.h b/src/libimcv/plugins/imv_swima/imv_swima_rest.h
new file mode 100644 (file)
index 0000000..55266dd
--- /dev/null
@@ -0,0 +1,63 @@
+/*
+ * Copyright (C) 2017 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_swima imv_swima
+ * @ingroup libimcv_plugins
+ *
+ * @defgroup imv_swima_rest_t imv_swima_rest
+ * @{ @ingroup imv_swima
+ */
+
+#ifndef IMV_SWIMA_REST_H_
+#define IMV_SWIMA_REST_H_
+
+#include <library.h>
+
+#include <json.h>
+
+typedef struct imv_swima_rest_t imv_swima_rest_t;
+
+/**
+ * Public REST interface
+ */
+struct imv_swima_rest_t {
+
+       /**
+        * Post a HTTP request including a JSON object
+        *
+        * @param jreq          JSON object in HTTP request
+        * @param jresp         JSON object in HTTP response if NEED_MORE
+        * @return                      Status (SUCCESS, NEED_MORE or FAILED)
+        */
+       status_t (*post)(imv_swima_rest_t *this, char *command, json_object *jreq,
+                                        json_object **jresp);
+
+       /**
+        * Destroy imv_swima_rest_t object
+        */
+       void (*destroy)(imv_swima_rest_t *this);
+
+};
+
+/**
+ * Create an imv_swima_rest_t instance
+ *
+ * @param uri                  REST URI (http://username:password@hostname[:port]/api/)
+ * @param timeout              Timeout of the REST connection
+ */
+imv_swima_rest_t* imv_swima_rest_create(char *uri, u_int timeout);
+
+#endif /** IMV_SWIMA_REST_H_ @}*/
diff --git a/src/libimcv/plugins/imv_swima/imv_swima_state.c b/src/libimcv/plugins/imv_swima/imv_swima_state.c
new file mode 100644 (file)
index 0000000..04defae
--- /dev/null
@@ -0,0 +1,460 @@
+/*
+ * Copyright (C) 2017 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_swima_state.h"
+
+#include <imv/imv_lang_string.h>
+#include <imv/imv_reason_string.h>
+#include <imv/imv_remediation_string.h>
+
+#include <tncif_policy.h>
+
+#include <utils/debug.h>
+
+typedef struct private_imv_swima_state_t private_imv_swima_state_t;
+
+/**
+ * Private data of an imv_swima_state_t object.
+ */
+struct private_imv_swima_state_t {
+
+       /**
+        * Public members of imv_swima_state_t
+        */
+       imv_swima_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
+        */
+       uint32_t max_msg_len;
+
+       /**
+        * Flags set for completed actions
+        */
+       uint32_t action_flags;
+
+       /**
+        * IMV database session associated with TNCCS connection
+        */
+       imv_session_t *session;
+
+       /**
+        * PA-TNC attribute segmentation contracts associated with TNCCS connection
+        */
+       seg_contract_manager_t *contracts;
+
+       /**
+        * IMV action recommendation
+        */
+       TNC_IMV_Action_Recommendation rec;
+
+       /**
+        * IMV evaluation result
+        */
+       TNC_IMV_Evaluation_Result eval;
+
+       /**
+        * IMV Scanner handshake state
+        */
+       imv_swima_handshake_state_t handshake_state;
+
+       /**
+        * TNC Reason String
+        */
+       imv_reason_string_t *reason_string;
+
+       /**
+        * IETF Remediation Instructions String
+        */
+       imv_remediation_string_t *remediation_string;
+
+       /**
+        * SWID Tag Request ID
+        */
+       uint32_t request_id;
+
+       /**
+        * Number of processed SWID Tag IDs
+        */
+       int tag_id_count;
+
+       /**
+        * Number of processed SWID Tags
+        */
+       int tag_count;
+
+       /**
+        * Number of missing SWID Tags or Tag IDs
+        */
+       uint32_t missing;
+
+       /**
+        * SWID IMC ID
+        */
+       TNC_UInt32 imc_id;
+
+       /**
+        * Top level JSON object
+        */
+       json_object *jobj;
+
+       /**
+        * JSON array containing an inventory of SWID Tag IDs
+        */
+       json_object *jarray;
+
+};
+
+METHOD(imv_state_t, get_connection_id, TNC_ConnectionID,
+       private_imv_swima_state_t *this)
+{
+       return this->connection_id;
+}
+
+METHOD(imv_state_t, has_long, bool,
+       private_imv_swima_state_t *this)
+{
+       return this->has_long;
+}
+
+METHOD(imv_state_t, has_excl, bool,
+       private_imv_swima_state_t *this)
+{
+       return this->has_excl;
+}
+
+METHOD(imv_state_t, set_flags, void,
+       private_imv_swima_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_swima_state_t *this, uint32_t max_msg_len)
+{
+       this->max_msg_len = max_msg_len;
+}
+
+METHOD(imv_state_t, get_max_msg_len, uint32_t,
+       private_imv_swima_state_t *this)
+{
+       return this->max_msg_len;
+}
+
+METHOD(imv_state_t, set_action_flags, void,
+       private_imv_swima_state_t *this, uint32_t flags)
+{
+       this->action_flags |= flags;
+}
+
+METHOD(imv_state_t, get_action_flags, uint32_t,
+       private_imv_swima_state_t *this)
+{
+       return this->action_flags;
+}
+
+METHOD(imv_state_t, set_session, void,
+       private_imv_swima_state_t *this, imv_session_t *session)
+{
+       this->session = session;
+}
+
+METHOD(imv_state_t, get_session, imv_session_t*,
+       private_imv_swima_state_t *this)
+{
+       return this->session;
+}
+
+METHOD(imv_state_t, get_contracts, seg_contract_manager_t*,
+       private_imv_swima_state_t *this)
+{
+       return this->contracts;
+}
+
+METHOD(imv_state_t, change_state, void,
+       private_imv_swima_state_t *this, TNC_ConnectionState new_state)
+{
+       this->state = new_state;
+}
+
+METHOD(imv_state_t, get_recommendation, void,
+       private_imv_swima_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_swima_state_t *this, TNC_IMV_Action_Recommendation rec,
+                                                                          TNC_IMV_Evaluation_Result eval)
+{
+       this->rec = rec;
+       this->eval = eval;
+}
+
+METHOD(imv_state_t, update_recommendation, void,
+       private_imv_swima_state_t *this, TNC_IMV_Action_Recommendation rec,
+                                                                          TNC_IMV_Evaluation_Result eval)
+{
+       this->rec  = tncif_policy_update_recommendation(this->rec, rec);
+       this->eval = tncif_policy_update_evaluation(this->eval, eval);
+}
+
+METHOD(imv_state_t, get_reason_string, bool,
+       private_imv_swima_state_t *this, enumerator_t *language_enumerator,
+       chunk_t *reason_string, char **reason_language)
+{
+       return FALSE;
+}
+
+METHOD(imv_state_t, get_remediation_instructions, bool,
+       private_imv_swima_state_t *this, enumerator_t *language_enumerator,
+       chunk_t *string, char **lang_code, char **uri)
+{
+       return FALSE;
+}
+
+METHOD(imv_state_t, destroy, void,
+       private_imv_swima_state_t *this)
+{
+       json_object_put(this->jobj);
+       DESTROY_IF(this->session);
+       DESTROY_IF(this->reason_string);
+       DESTROY_IF(this->remediation_string);
+       this->contracts->destroy(this->contracts);
+       free(this);
+}
+
+METHOD(imv_swima_state_t, set_handshake_state, void,
+       private_imv_swima_state_t *this, imv_swima_handshake_state_t new_state)
+{
+       this->handshake_state = new_state;
+}
+
+METHOD(imv_swima_state_t, get_handshake_state, imv_swima_handshake_state_t,
+       private_imv_swima_state_t *this)
+{
+       return this->handshake_state;
+}
+
+METHOD(imv_swima_state_t, set_request_id, void,
+       private_imv_swima_state_t *this, uint32_t request_id)
+{
+       this->request_id = request_id;
+}
+
+METHOD(imv_swima_state_t, get_request_id, uint32_t,
+       private_imv_swima_state_t *this)
+{
+       return this->request_id;
+}
+
+METHOD(imv_swima_state_t, set_inventory, void,
+    private_imv_swima_state_t *this, swima_inventory_t *inventory)
+{
+       chunk_t sw_id, sw_locator;
+       uint32_t record_id;
+       char *sw_id_str;
+       json_object *jstring;
+       swima_record_t *sw_record;
+       enumerator_t *enumerator;
+
+       enumerator = inventory->create_enumerator(inventory);
+       while (enumerator->enumerate(enumerator, &sw_record))
+       {
+               record_id = sw_record->get_record_id(sw_record);
+               sw_id = sw_record->get_sw_id(sw_record, &sw_locator);
+               sw_id_str = strndup(sw_id.ptr, sw_id.len);
+               if (sw_locator.len)
+               {
+                       DBG3(DBG_IMV, "%6u: %s @ %.*s", record_id, sw_id_str,
+                                                  sw_locator.len, sw_locator.ptr);
+               }
+               else
+               {
+                       DBG3(DBG_IMV, "%6u: %s", record_id, sw_id_str);
+               }
+
+               /* Add software identity to JSON array */
+               jstring = json_object_new_string(sw_id_str);
+               json_object_array_add(this->jarray, jstring);
+               free(sw_id_str);
+       }
+       enumerator->destroy(enumerator);
+}
+
+METHOD(imv_swima_state_t, get_inventory, json_object*,
+       private_imv_swima_state_t *this)
+{
+       return this->jobj;
+}
+
+METHOD(imv_swima_state_t, set_events, void,
+    private_imv_swima_state_t *this, swima_events_t *events)
+{
+       chunk_t sw_id, timestamp;
+       uint32_t record_id, eid;
+       char *sw_id_str;
+       json_object *jstring;
+       swima_event_t *sw_event;
+       swima_record_t *sw_record;
+       enumerator_t *enumerator;
+
+       enumerator = events->create_enumerator(events);
+       while (enumerator->enumerate(enumerator, &sw_event))
+       {
+               eid = sw_event->get_eid(sw_event, &timestamp);
+               sw_record = sw_event->get_sw_record(sw_event);
+               record_id = sw_record->get_record_id(sw_record);
+               sw_id = sw_record->get_sw_id(sw_record, NULL);
+               sw_id_str = strndup(sw_id.ptr, sw_id.len);
+               DBG3(DBG_IMV, "%3u %.*s %6u: %s", eid, timestamp.len, timestamp.ptr,
+                                                                                 record_id, sw_id_str);
+
+               /* Add software identity to JSON array */
+               jstring = json_object_new_string(sw_id_str);
+               json_object_array_add(this->jarray, jstring);
+               free(sw_id_str);
+       }
+       enumerator->destroy(enumerator);
+}
+
+METHOD(imv_swima_state_t, get_events, json_object*,
+       private_imv_swima_state_t *this)
+{
+       return this->jobj;
+}
+
+METHOD(imv_swima_state_t, set_missing, void,
+       private_imv_swima_state_t *this, uint32_t count)
+{
+       this->missing = count;
+}
+
+METHOD(imv_swima_state_t, get_missing, uint32_t,
+       private_imv_swima_state_t *this)
+{
+       return this->missing;
+}
+
+METHOD(imv_swima_state_t, set_count, void,
+       private_imv_swima_state_t *this, int tag_id_count, int tag_count,
+       TNC_UInt32 imc_id)
+{
+       this->tag_id_count += tag_id_count;
+       this->tag_count += tag_count;
+       this->imc_id = imc_id;
+}
+
+METHOD(imv_swima_state_t, get_count, void,
+       private_imv_swima_state_t *this, int *tag_id_count, int *tag_count)
+{
+       if (tag_id_count)
+       {
+               *tag_id_count = this->tag_id_count;
+       }
+       if (tag_count)
+       {
+               *tag_count = this->tag_count;
+       }
+}
+
+METHOD(imv_swima_state_t, get_imc_id, TNC_UInt32,
+       private_imv_swima_state_t *this)
+{
+       return this->imc_id;
+}
+
+/**
+ * Described in header.
+ */
+imv_state_t *imv_swima_state_create(TNC_ConnectionID connection_id)
+{
+       private_imv_swima_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,
+                               .set_action_flags = _set_action_flags,
+                               .get_action_flags = _get_action_flags,
+                               .set_session = _set_session,
+                               .get_session= _get_session,
+                               .get_contracts = _get_contracts,
+                               .change_state = _change_state,
+                               .get_recommendation = _get_recommendation,
+                               .set_recommendation = _set_recommendation,
+                               .update_recommendation = _update_recommendation,
+                               .get_reason_string = _get_reason_string,
+                               .get_remediation_instructions = _get_remediation_instructions,
+                               .destroy = _destroy,
+                       },
+                       .set_handshake_state = _set_handshake_state,
+                       .get_handshake_state = _get_handshake_state,
+                       .set_request_id = _set_request_id,
+                       .get_request_id = _get_request_id,
+                       .set_inventory = _set_inventory,
+                       .get_inventory = _get_inventory,
+                       .set_events = _set_events,
+                       .get_events = _get_events,
+                       .set_missing = _set_missing,
+                       .get_missing = _get_missing,
+                       .set_count = _set_count,
+                       .get_count = _get_count,
+                       .get_imc_id = _get_imc_id,
+               },
+               .state = TNC_CONNECTION_STATE_CREATE,
+               .rec = TNC_IMV_ACTION_RECOMMENDATION_NO_RECOMMENDATION,
+               .eval = TNC_IMV_EVALUATION_RESULT_DONT_KNOW,
+               .connection_id = connection_id,
+               .contracts = seg_contract_manager_create(),
+               .imc_id = TNC_IMCID_ANY,
+               .jobj = json_object_new_object(),
+               .jarray = json_object_new_array(),
+       );
+
+       json_object_object_add(this->jobj, "data", this->jarray);
+
+       return &this->public.interface;
+}
+
+
diff --git a/src/libimcv/plugins/imv_swima/imv_swima_state.h b/src/libimcv/plugins/imv_swima/imv_swima_state.h
new file mode 100644 (file)
index 0000000..beade6c
--- /dev/null
@@ -0,0 +1,160 @@
+/*
+ * Copyright (C) 2017 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_swima imv_swima
+ * @ingroup libimcv_plugins
+ *
+ * @defgroup imv_swima_state_t imv_swima_state
+ * @{ @ingroup imv_swima
+ */
+
+#ifndef IMV_SWIMA_STATE_H_
+#define IMV_SWIMA_STATE_H_
+
+#include <imv/imv_state.h>
+#include <swima/swima_inventory.h>
+#include <swima/swima_events.h>
+#include <library.h>
+
+#include <json.h>
+
+typedef struct imv_swima_state_t imv_swima_state_t;
+typedef enum imv_swima_handshake_state_t imv_swima_handshake_state_t;
+
+/**
+ * IMV OS Handshake States (state machine)
+ */
+enum imv_swima_handshake_state_t {
+       IMV_SWIMA_STATE_INIT,
+       IMV_SWIMA_STATE_WORKITEMS,
+       IMV_SWIMA_STATE_END
+};
+
+/**
+ * Internal state of an imv_swima_t connection instance
+ */
+struct imv_swima_state_t {
+
+       /**
+        * imv_state_t interface
+        */
+       imv_state_t interface;
+
+       /**
+        * Set state of the handshake
+        *
+        * @param new_state                     the handshake state of IMV
+        */
+       void (*set_handshake_state)(imv_swima_state_t *this,
+                                                               imv_swima_handshake_state_t new_state);
+
+       /**
+        * Get state of the handshake
+        *
+        * @return                                      the handshake state of IMV
+        */
+       imv_swima_handshake_state_t (*get_handshake_state)(imv_swima_state_t *this);
+
+       /**
+        * Set the SWID request ID
+        *
+        * @param request_id            SWID request ID to be set
+        */
+       void (*set_request_id)(imv_swima_state_t *this, uint32_t request_id);
+
+       /**
+        * Get the SWID request ID
+        *
+        * @return                                      SWID request ID
+        */
+       uint32_t (*get_request_id)(imv_swima_state_t *this);
+
+       /**
+        * Set or extend the SWID Tag ID inventory in the state
+        *
+        * @param inventory                     SWID Tags ID inventory to be added
+        */
+       void (*set_inventory)(imv_swima_state_t *this, swima_inventory_t *inventory);
+
+       /**
+        * Get the encoding of the complete SWID Tag ID inventory
+        *
+        * @return                             SWID Tags ID inventory as a JSON array
+        */
+       json_object* (*get_inventory)(imv_swima_state_t *this);
+
+       /**
+        * Set or extend the SWID Tag ID Events in the state
+        *
+        * @param inventory                     SWID Tags ID inventory to be added
+        */
+       void (*set_events)(imv_swima_state_t *this, swima_events_t *events);
+
+       /**
+        * Get the encoding of the complete Software ID Events
+        *
+        * @return                             Software ID events as a JSON array
+        */
+       json_object* (*get_events)(imv_swima_state_t *this);
+
+       /**
+        * Set the number of still missing SW [ID] records or envents
+        *
+        * @param count                         Number of missing SW [ID] records or envents
+        */
+       void (*set_missing)(imv_swima_state_t *this, uint32_t count);
+
+       /**
+        * Get the number of still missing SWID Tags or Tag IDs
+        *
+        * @result                                      Number of missing SWID Tags or Tag IDs
+        */
+       uint32_t (*get_missing)(imv_swima_state_t *this);
+
+       /**
+        * Set [or with multiple attributes increment] SWID Tag [ID] counters
+        *
+        * @param tag_id_count          Number of received SWID Tag IDs
+        * @param tag_count                     Number of received SWID Tags
+        * @param imc_id                        SWID IMC ID
+        */
+       void (*set_count)(imv_swima_state_t *this, int tag_id_count, int tag_count,
+                                         TNC_UInt32 imc_id);
+
+       /**
+        * Set [or with multiple attributes increment] SWID Tag [ID] counters
+        *
+        * @param tag_id_count          Number of received SWID Tag IDs
+        * @param tag_count                     Number of received SWID Tags
+        */
+       void (*get_count)(imv_swima_state_t *this, int *tag_id_count, int *tag_count);
+
+       /**
+        * Get SWID IMC ID
+        *
+        * @return                                      SWID IMC ID
+        */
+       TNC_UInt32 (*get_imc_id)(imv_swima_state_t *this);
+};
+
+/**
+ * Create an imv_swima_state_t instance
+ *
+ * @param id                   connection ID
+ */
+imv_state_t* imv_swima_state_create(TNC_ConnectionID id);
+
+#endif /** IMV_SWIMA_STATE_H_ @}*/