Implemented HCD IMC and IMV

This commit is contained in:
Andreas Steffen 2015-05-21 22:01:32 +02:00
parent 92a9c99c38
commit b48ffcb1b3
12 changed files with 1956 additions and 1 deletions

View File

@ -240,6 +240,8 @@ ARG_ENABL_SET([imc-attestation],[enable IMC attestation module.])
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-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])
ARG_ENABL_SET([tnc-imc], [enable TNC IMC module.])
ARG_ENABL_SET([tnc-imv], [enable TNC IMV module.])
@ -405,7 +407,7 @@ 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; 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$imc_hcd = xtrue -o x$imv_hcd = xtrue; then
imcv=true;
fi
@ -1547,6 +1549,8 @@ AM_CONDITIONAL(USE_IMC_ATTESTATION, test x$imc_attestation = xtrue)
AM_CONDITIONAL(USE_IMV_ATTESTATION, test x$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_HCD, test x$imc_hcd = xtrue)
AM_CONDITIONAL(USE_IMV_HCD, test x$imv_hcd = xtrue)
AM_CONDITIONAL(USE_SOCKET_DEFAULT, test x$socket_default = xtrue)
AM_CONDITIONAL(USE_SOCKET_DYNAMIC, test x$socket_dynamic = xtrue)
AM_CONDITIONAL(USE_SOCKET_WIN, test x$socket_win = xtrue)
@ -1758,6 +1762,8 @@ AC_CONFIG_FILES([
src/libimcv/plugins/imv_attestation/Makefile
src/libimcv/plugins/imc_swid/Makefile
src/libimcv/plugins/imv_swid/Makefile
src/libimcv/plugins/imc_hcd/Makefile
src/libimcv/plugins/imv_hcd/Makefile
src/charon/Makefile
src/charon-nm/Makefile
src/charon-tkm/Makefile

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@ -175,6 +175,14 @@ if USE_IMV_SWID
SUBDIRS += plugins/imv_swid
endif
if USE_IMC_HCD
SUBDIRS += plugins/imc_hcd
endif
if USE_IMV_HCD
SUBDIRS += plugins/imv_hcd
endif
TESTS = imcv_tests
check_PROGRAMS = $(TESTS)

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@ -0,0 +1,16 @@
AM_CPPFLAGS = \
-I$(top_srcdir)/src/libstrongswan \
-I$(top_srcdir)/src/libtncif \
-I$(top_srcdir)/src/libimcv
AM_CFLAGS = \
$(PLUGIN_CFLAGS)
imcv_LTLIBRARIES = imc-hcd.la
imc_hcd_la_LIBADD = $(top_builddir)/src/libimcv/libimcv.la \
$(top_builddir)/src/libstrongswan/libstrongswan.la
imc_hcd_la_SOURCES = imc_hcd.c imc_hcd_state.h imc_hcd_state.c
imc_hcd_la_LDFLAGS = -module -avoid-version -no-undefined

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@ -0,0 +1,714 @@
/*
* Copyright (C) 2015 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_hcd_state.h"
#include <imc/imc_agent.h>
#include <imc/imc_msg.h>
#include <generic/generic_attr_bool.h>
#include <generic/generic_attr_chunk.h>
#include <generic/generic_attr_string.h>
#include <ietf/ietf_attr.h>
#include <ietf/ietf_attr_attr_request.h>
#include <pwg/pwg_attr.h>
#include <pwg/pwg_attr_vendor_smi_code.h>
#include <tncif_pa_subtypes.h>
#include <pen/pen.h>
#include <utils/debug.h>
/* IMC definitions */
static const char imc_name[] = "HCD";
static pen_type_t msg_types[] = {
{ PEN_PWG, PA_SUBTYPE_PWG_HCD }
};
static imc_agent_t *imc_hcd;
typedef struct quadruple_t quadruple_t;
struct quadruple_t {
char *section;
pwg_attr_t name_attr;
pwg_attr_t patches_attr;
pwg_attr_t string_version_attr;
pwg_attr_t version_attr;
};
static quadruple_t quadruples[] = {
{ "firmware",
PWG_HCD_FIRMWARE_NAME, PWG_HCD_FIRMWARE_PATCHES,
PWG_HCD_FIRMWARE_STRING_VERSION, PWG_HCD_FIRMWARE_VERSION },
{ "resident_application",
PWG_HCD_RESIDENT_APP_NAME, PWG_HCD_RESIDENT_APP_PATCHES,
PWG_HCD_RESIDENT_APP_STRING_VERSION, PWG_HCD_RESIDENT_APP_VERSION },
{ "user_application",
PWG_HCD_USER_APP_NAME, PWG_HCD_USER_APP_PATCHES,
PWG_HCD_USER_APP_STRING_VERSION, PWG_HCD_USER_APP_VERSION }
};
/**
* see section 3.8.1 of TCG TNC IF-IMC Specification 1.3
*/
TNC_Result TNC_IMC_API TNC_IMC_Initialize(TNC_IMCID imc_id,
TNC_Version min_version,
TNC_Version max_version,
TNC_Version *actual_version)
{
if (imc_hcd)
{
DBG1(DBG_IMC, "IMC \"%s\" has already been initialized", imc_name);
return TNC_RESULT_ALREADY_INITIALIZED;
}
imc_hcd = imc_agent_create(imc_name, msg_types, countof(msg_types),
imc_id, actual_version);
if (!imc_hcd)
{
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_API TNC_IMC_NotifyConnectionChange(TNC_IMCID imc_id,
TNC_ConnectionID connection_id, TNC_ConnectionState new_state)
{
imc_state_t *state;
if (!imc_hcd)
{
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_hcd_state_create(connection_id);
return imc_hcd->create_state(imc_hcd, state);
case TNC_CONNECTION_STATE_HANDSHAKE:
if (imc_hcd->change_state(imc_hcd, 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_hcd->delete_state(imc_hcd, connection_id);
default:
return imc_hcd->change_state(imc_hcd, connection_id,
new_state, NULL);
}
}
/**
* Add AttributesNaturalLanguage attribute to send queue
*/
static void add_attrs_natural_lang(imc_msg_t *msg)
{
pa_tnc_attr_t *attr;
char *string;
string = lib->settings->get_str(lib->settings,
"%s.plugins.imc-hcd.attributes_natural_language", "en",
lib->ns);
DBG2(DBG_IMC, "%N: %s", pwg_attr_names, PWG_HCD_ATTRS_NATURAL_LANG,
string);
attr = generic_attr_string_create(chunk_from_str(string),
pen_type_create(PEN_PWG, PWG_HCD_ATTRS_NATURAL_LANG));
msg->add_attribute(msg, attr);
}
/**
* Add DefaultPasswordEnabled attribute to send queue
*/
static void add_default_pwd_enabled(imc_msg_t *msg)
{
pa_tnc_attr_t *attr;
bool status;
status = lib->settings->get_bool(lib->settings,
"%s.plugins.imc-hcd.default_password_enabled", FALSE,
lib->ns);
DBG2(DBG_IMC, "%N: %s", pwg_attr_names, PWG_HCD_DEFAULT_PWD_ENABLED,
status ? "yes" : "no");
attr = generic_attr_bool_create(status,
pen_type_create(PEN_PWG, PWG_HCD_DEFAULT_PWD_ENABLED));
msg->add_attribute(msg, attr);
}
/**
* Add ForwardingEnabled attribute to send queue
*/
static void add_forwarding_enabled(imc_msg_t *msg)
{
pa_tnc_attr_t *attr;
bool status;
status = lib->settings->get_bool(lib->settings,
"%s.plugins.imc-hcd.forwarding_enabled", FALSE, lib->ns);
DBG2(DBG_IMC, "%N: %s", pwg_attr_names, PWG_HCD_FORWARDING_ENABLED,
status ? "yes" : "no");
attr = generic_attr_bool_create(status,
pen_type_create(PEN_PWG, PWG_HCD_FORWARDING_ENABLED));
msg->add_attribute(msg, attr);
}
/**
* Add MachineTypeModel attribute to send queue
*/
static void add_machine_type_model(imc_msg_t *msg)
{
pa_tnc_attr_t *attr;
char *string;
string = lib->settings->get_str(lib->settings,
"%s.plugins.imc-hcd.machine_type_model", "", lib->ns);
DBG2(DBG_IMC, "%N: %s", pwg_attr_names, PWG_HCD_MACHINE_TYPE_MODEL,
string);
attr = generic_attr_string_create(chunk_from_str(string),
pen_type_create(PEN_PWG, PWG_HCD_MACHINE_TYPE_MODEL));
msg->add_attribute(msg, attr);
}
/**
* Add PSTNFaxEnabled attribute to send queue
*/
static void add_pstn_fax_enabled(imc_msg_t *msg)
{
pa_tnc_attr_t *attr;
bool status;
status = lib->settings->get_bool(lib->settings,
"%s.plugins.imc-hcd.pstn_fax_enabled", FALSE, lib->ns);
DBG2(DBG_IMC, "%N: %s", pwg_attr_names, PWG_HCD_PSTN_FAX_ENABLED,
status ? "yes" : "no");
attr = generic_attr_bool_create(status,
pen_type_create(PEN_PWG, PWG_HCD_PSTN_FAX_ENABLED));
msg->add_attribute(msg, attr);
}
/**
* Add TimeSource attribute to send queue
*/
static void add_time_source(imc_msg_t *msg)
{
pa_tnc_attr_t *attr;
char *string;
string = lib->settings->get_str(lib->settings,
"%s.plugins.imc-hcd.time_source", "", lib->ns);
DBG2(DBG_IMC, "%N: %s", pwg_attr_names, PWG_HCD_TIME_SOURCE,
string);
attr = generic_attr_string_create(chunk_from_str(string),
pen_type_create(PEN_PWG, PWG_HCD_TIME_SOURCE));
msg->add_attribute(msg, attr);
}
/**
* Add UserApplicationEnabled attribute to send queue
*/
static void add_user_app_enabled(imc_msg_t *msg)
{
pa_tnc_attr_t *attr;
bool status;
status = lib->settings->get_bool(lib->settings,
"%s.plugins.imc-hcd.user_application_enabled", FALSE,
lib->ns);
DBG2(DBG_IMC, "%N: %s", pwg_attr_names, PWG_HCD_USER_APP_ENABLED,
status ? "yes" : "no");
attr = generic_attr_bool_create(status,
pen_type_create(PEN_PWG, PWG_HCD_USER_APP_ENABLED));
msg->add_attribute(msg, attr);
}
/**
* Add UserApplicationPersistenceEnabled attribute to send queue
*/
static void add_user_app_persist_enabled(imc_msg_t *msg)
{
pa_tnc_attr_t *attr;
bool status;
status = lib->settings->get_bool(lib->settings,
"%s.plugins.imc-hcd.user_application_persistenc.enabled",
FALSE, lib->ns);
DBG2(DBG_IMC, "%N: %s", pwg_attr_names, PWG_HCD_USER_APP_PERSIST_ENABLED,
status ? "yes" : "no");
attr = generic_attr_bool_create(status,
pen_type_create(PEN_PWG, PWG_HCD_USER_APP_PERSIST_ENABLED));
msg->add_attribute(msg, attr);
}
/**
* Add VendorName attribute to send queue
*/
static void add_vendor_name(imc_msg_t *msg)
{
pa_tnc_attr_t *attr;
char *string;
string = lib->settings->get_str(lib->settings,
"%s.plugins.imc-hcd.vendor_name", "", lib->ns);
DBG2(DBG_IMC, "%N: %s", pwg_attr_names, PWG_HCD_VENDOR_NAME,
string);
attr = generic_attr_string_create(chunk_from_str(string),
pen_type_create(PEN_PWG, PWG_HCD_VENDOR_NAME));
msg->add_attribute(msg, attr);
}
/**
* Add VendorSMICode attribute to send queue
*/
static void add_vendor_smi_code(imc_msg_t *msg)
{
pa_tnc_attr_t *attr;
int smi_code;
smi_code = lib->settings->get_int(lib->settings,
"%s.plugins.imc-hcd.vendor_smi_code", 0, lib->ns);
DBG2(DBG_IMC, "%N: 0x%06x (%d)", pwg_attr_names, PWG_HCD_VENDOR_SMI_CODE,
smi_code, smi_code);
attr = pwg_attr_vendor_smi_code_create(smi_code);
msg->add_attribute(msg, attr);
}
/**
* Add CertificationState attribute to send queue
*/
static void add_certification_state(imc_msg_t *msg)
{
pa_tnc_attr_t *attr;
char *hex_string;
chunk_t blob;
hex_string = lib->settings->get_str(lib->settings,
"%s.plugins.imc-hcd.certification_state", NULL, lib->ns);
if (hex_string)
{
blob = chunk_from_hex(chunk_from_str(hex_string), NULL);
DBG2(DBG_IMC, "%N: %B", pwg_attr_names, PWG_HCD_CERTIFICATION_STATE,
&blob);
attr = generic_attr_chunk_create(blob,
pen_type_create(PEN_PWG, PWG_HCD_CERTIFICATION_STATE));
msg->add_attribute(msg, attr);
chunk_free(&blob);
}
}
/**
* Add CertificationState attribute to send queue
*/
static void add_configuration_state(imc_msg_t *msg)
{
pa_tnc_attr_t *attr;
char *hex_string;
chunk_t blob;
hex_string = lib->settings->get_str(lib->settings,
"%s.plugins.imc-hcd.configuration_state", NULL, lib->ns);
if (hex_string)
{
blob = chunk_from_hex(chunk_from_str(hex_string), NULL);
DBG2(DBG_IMC, "%N: %B", pwg_attr_names, PWG_HCD_CONFIGURATION_STATE,
&blob);
attr = generic_attr_chunk_create(blob,
pen_type_create(PEN_PWG, PWG_HCD_CONFIGURATION_STATE));
msg->add_attribute(msg, attr);
chunk_free(&blob);
}
}
/**
* Add Correlated Attributes to send queue
*/
static void add_quadruple(imc_msg_t *msg, quadruple_t *quad)
{
pa_tnc_attr_t *attr;
const size_t version_len = 16;
char version[version_len];
char hex_version_default[] = "00000000000000000000000000000000";
char *app, *name, *patches, *pos, *string_version, *hex_version;
chunk_t num_version;
enumerator_t *enumerator;
enumerator = lib->settings->create_section_enumerator(lib->settings,
"%s.plugins.imc-hcd.%s", lib->ns, quad->section);
while (enumerator->enumerate(enumerator, &app))
{
name = lib->settings->get_str(lib->settings,
"%s.plugins.imc-hcd.%s.%s.name", "",
lib->ns, quad->section, app);
patches = lib->settings->get_str(lib->settings,
"%s.plugins.imc-hcd.%s.%s.patches", "",
lib->ns, quad->section, app);
string_version = lib->settings->get_str(lib->settings,
"%s.plugins.imc-hcd.%s.%s.string_version", "",
lib->ns, quad->section, app);
hex_version = lib->settings->get_str(lib->settings,
"%s.plugins.imc-hcd.%s.%s.version", hex_version_default,
lib->ns, quad->section, app);
/* replace \n escape character by CRLF */
pos = patches;
while (TRUE)
{
pos = strchr(pos, '\\');
if (pos == NULL)
{
break;
}
if (pos[1] == 'n')
{
pos[0] = '\r';
pos[1] = '\n';
pos++;
}
pos++;
}
/* convert hex string into binary chunk */
if (strlen(hex_version) > 2 * version_len)
{
hex_version = hex_version_default;
}
num_version = chunk_from_hex(chunk_from_str(hex_version), version);
DBG2(DBG_IMC, "--- %s ---", app);
DBG2(DBG_IMC, "%N: %s", pwg_attr_names, quad->name_attr, name);
attr = generic_attr_string_create(chunk_from_str(name),
pen_type_create(PEN_PWG, quad->name_attr));
msg->add_attribute(msg, attr);
DBG2(DBG_IMC, "%N: %s", pwg_attr_names, quad->patches_attr, patches);
attr = generic_attr_string_create(chunk_from_str(patches),
pen_type_create(PEN_PWG, quad->patches_attr));
msg->add_attribute(msg, attr);
DBG2(DBG_IMC, "%N: %s", pwg_attr_names, quad->string_version_attr,
string_version);
attr = generic_attr_string_create(chunk_from_str(string_version),
pen_type_create(PEN_PWG, quad->string_version_attr));
msg->add_attribute(msg, attr);
DBG2(DBG_IMC, "%N: %#B", pwg_attr_names, quad->version_attr, &num_version);
attr = generic_attr_chunk_create(num_version,
pen_type_create(PEN_PWG, quad->version_attr));
msg->add_attribute(msg, attr);
}
enumerator->destroy(enumerator);
}
/**
* see section 3.8.3 of TCG TNC IF-IMC Specification 1.3
*/
TNC_Result TNC_IMC_API TNC_IMC_BeginHandshake(TNC_IMCID imc_id,
TNC_ConnectionID connection_id)
{
imc_state_t *state;
imc_msg_t *out_msg;
TNC_Result result = TNC_RESULT_SUCCESS;
int i;
if (!imc_hcd)
{
DBG1(DBG_IMC, "IMC \"%s\" has not been initialized", imc_name);
return TNC_RESULT_NOT_INITIALIZED;
}
if (!imc_hcd->get_state(imc_hcd, connection_id, &state))
{
return TNC_RESULT_FATAL;
}
out_msg = imc_msg_create(imc_hcd, state, connection_id, imc_id,
TNC_IMVID_ANY, msg_types[0]);
/* mandatory attributes that are always sent without request */
add_attrs_natural_lang(out_msg);
add_default_pwd_enabled(out_msg);
add_forwarding_enabled(out_msg);
add_machine_type_model(out_msg);
add_pstn_fax_enabled(out_msg);
add_time_source(out_msg);
add_vendor_name(out_msg);
add_vendor_smi_code(out_msg);
add_user_app_enabled(out_msg);
add_user_app_persist_enabled(out_msg);
if (lib->settings->get_bool(lib->settings,
"%s.plugins.imc-hcd.push_info", FALSE, lib->ns))
{
/* correlated attributes */
for (i = 0; i < countof(quadruples); i++)
{
add_quadruple(out_msg, &quadruples[i]);
}
}
/* send PA-TNC message with the excl flag not set */
result = out_msg->send(out_msg, FALSE);
out_msg->destroy(out_msg);
return result;
}
static TNC_Result receive_message(imc_state_t *state, imc_msg_t *in_msg)
{
imc_msg_t *out_msg;
enumerator_t *enumerator;
pa_tnc_attr_t *attr;
pen_type_t type;
TNC_Result result;
bool fatal_error = FALSE, pushed_info;
/* generate an outgoing PA-TNC message - we might need it */
out_msg = imc_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;
}
pushed_info = lib->settings->get_bool(lib->settings,
"%s.plugins.imc-hcd.push_info", FALSE, lib->ns);
/* analyze PA-TNC attributes */
enumerator = in_msg->create_attribute_enumerator(in_msg);
while (enumerator->enumerate(enumerator, &attr))
{
type = attr->get_type(attr);
if (type.vendor_id == PEN_IETF)
{
if (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_PWG)
{
switch (entry->type)
{
case PWG_HCD_ATTRS_NATURAL_LANG:
add_attrs_natural_lang(out_msg);
break;
case PWG_HCD_DEFAULT_PWD_ENABLED:
add_default_pwd_enabled(out_msg);
break;
case PWG_HCD_FORWARDING_ENABLED:
add_forwarding_enabled(out_msg);
break;
case PWG_HCD_MACHINE_TYPE_MODEL:
add_machine_type_model(out_msg);
break;
case PWG_HCD_PSTN_FAX_ENABLED:
add_pstn_fax_enabled(out_msg);
break;
case PWG_HCD_TIME_SOURCE:
add_time_source(out_msg);
break;
case PWG_HCD_USER_APP_ENABLED:
add_user_app_enabled(out_msg);
break;
case PWG_HCD_USER_APP_PERSIST_ENABLED:
add_user_app_persist_enabled(out_msg);
break;
case PWG_HCD_VENDOR_NAME:
add_vendor_name(out_msg);
break;
case PWG_HCD_VENDOR_SMI_CODE:
add_vendor_smi_code(out_msg);
break;
case PWG_HCD_CERTIFICATION_STATE:
add_certification_state(out_msg);
break;
case PWG_HCD_CONFIGURATION_STATE:
add_configuration_state(out_msg);
break;
default:
if (pushed_info)
{
continue;
}
}
/* if not pushed, deliver on request */
switch (entry->type)
{
case PWG_HCD_FIRMWARE_NAME:
add_quadruple(out_msg, &quadruples[0]);
break;
case PWG_HCD_RESIDENT_APP_NAME:
add_quadruple(out_msg, &quadruples[1]);
break;
case PWG_HCD_USER_APP_NAME:
add_quadruple(out_msg, &quadruples[2]);
break;
default:
break;
}
}
}
e->destroy(e);
}
}
}
enumerator->destroy(enumerator);
if (fatal_error)
{
result = TNC_RESULT_FATAL;
}
else
{
/* send PA-TNC message with the EXCL flag set */
result = out_msg->send(out_msg, TRUE);
}
out_msg->destroy(out_msg);
return result;
}
/**
* see section 3.8.4 of TCG TNC IF-IMC Specification 1.3
*/
TNC_Result TNC_IMC_API TNC_IMC_ReceiveMessage(TNC_IMCID imc_id,
TNC_ConnectionID connection_id,
TNC_BufferReference msg,
TNC_UInt32 msg_len,
TNC_MessageType msg_type)
{
imc_state_t *state;
imc_msg_t *in_msg;
TNC_Result result;
if (!imc_hcd)
{
DBG1(DBG_IMC, "IMC \"%s\" has not been initialized", imc_name);
return TNC_RESULT_NOT_INITIALIZED;
}
if (!imc_hcd->get_state(imc_hcd, connection_id, &state))
{
return TNC_RESULT_FATAL;
}
in_msg = imc_msg_create_from_data(imc_hcd, state, connection_id, msg_type,
chunk_create(msg, msg_len));
result = receive_message(state, in_msg);
in_msg->destroy(in_msg);
return result;
}
/**
* see section 3.8.6 of TCG TNC IF-IMV Specification 1.3
*/
TNC_Result TNC_IMC_API 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)
{
imc_state_t *state;
imc_msg_t *in_msg;
TNC_Result result;
if (!imc_hcd)
{
DBG1(DBG_IMC, "IMC \"%s\" has not been initialized", imc_name);
return TNC_RESULT_NOT_INITIALIZED;
}
if (!imc_hcd->get_state(imc_hcd, connection_id, &state))
{
return TNC_RESULT_FATAL;
}
in_msg = imc_msg_create_from_long_data(imc_hcd, state, connection_id,
src_imv_id, dst_imc_id,msg_vid, msg_subtype,
chunk_create(msg, msg_len));
result =receive_message(state, in_msg);
in_msg->destroy(in_msg);
return result;
}
/**
* see section 3.8.7 of TCG TNC IF-IMC Specification 1.3
*/
TNC_Result TNC_IMC_API TNC_IMC_BatchEnding(TNC_IMCID imc_id,
TNC_ConnectionID connection_id)
{
if (!imc_hcd)
{
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_API TNC_IMC_Terminate(TNC_IMCID imc_id)
{
if (!imc_hcd)
{
DBG1(DBG_IMC, "IMC \"%s\" has not been initialized", imc_name);
return TNC_RESULT_NOT_INITIALIZED;
}
imc_hcd->destroy(imc_hcd);
imc_hcd = NULL;
return TNC_RESULT_SUCCESS;
}
/**
* see section 4.2.8.1 of TCG TNC IF-IMC Specification 1.3
*/
TNC_Result TNC_IMC_API TNC_IMC_ProvideBindFunction(TNC_IMCID imc_id,
TNC_TNCC_BindFunctionPointer bind_function)
{
if (!imc_hcd)
{
DBG1(DBG_IMC, "IMC \"%s\" has not been initialized", imc_name);
return TNC_RESULT_NOT_INITIALIZED;
}
return imc_hcd->bind_functions(imc_hcd, bind_function);
}

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/*
* Copyright (C) 2015 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_hcd_state.h"
#include <tncif_names.h>
#include <utils/debug.h>
typedef struct private_imc_hcd_state_t private_imc_hcd_state_t;
/**
* Private data of an imc_hcd_state_t object.
*/
struct private_imc_hcd_state_t {
/**
* Public members of imc_hcd_state_t
*/
imc_hcd_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;
/**
* PA-TNC attribute segmentation contracts associated with TNCCS connection
*/
seg_contract_manager_t *contracts;
};
METHOD(imc_state_t, get_connection_id, TNC_ConnectionID,
private_imc_hcd_state_t *this)
{
return this->connection_id;
}
METHOD(imc_state_t, has_long, bool,
private_imc_hcd_state_t *this)
{
return this->has_long;
}
METHOD(imc_state_t, has_excl, bool,
private_imc_hcd_state_t *this)
{
return this->has_excl;
}
METHOD(imc_state_t, set_flags, void,
private_imc_hcd_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_hcd_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_hcd_state_t *this)
{
return this->max_msg_len;
}
METHOD(imc_state_t, get_contracts, seg_contract_manager_t*,
private_imc_hcd_state_t *this)
{
return this->contracts;
}
METHOD(imc_state_t, change_state, void,
private_imc_hcd_state_t *this, TNC_ConnectionState new_state)
{
this->state = new_state;
}
METHOD(imc_state_t, set_result, void,
private_imc_hcd_state_t *this, TNC_IMCID id,
TNC_IMV_Evaluation_Result result)
{
this->result = result;
}
METHOD(imc_state_t, get_result, bool,
private_imc_hcd_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_hcd_state_t *this)
{
this->contracts->destroy(this->contracts);
free(this);
}
/**
* Described in header.
*/
imc_state_t *imc_hcd_state_create(TNC_ConnectionID connection_id)
{
private_imc_hcd_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,
.get_contracts = _get_contracts,
.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,
.contracts = seg_contract_manager_create(),
);
return &this->public.interface;
}

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/*
* Copyright (C) 2015 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_hcd imc_hcd
* @ingroup libimcv_plugins
*
* @defgroup imc_hcd_state_t imc_hcd_state
* @{ @ingroup imc_hcd
*/
#ifndef IMC_HCD_STATE_H_
#define IMC_HCD_STATE_H_
#include <imc/imc_state.h>
#include <library.h>
typedef struct imc_hcd_state_t imc_hcd_state_t;
/**
* Internal state of an imc_hcd_t connection instance
*/
struct imc_hcd_state_t {
/**
* imc_state_t interface
*/
imc_state_t interface;
};
/**
* Create an imc_hcd_state_t instance
*
* @param id connection ID
*/
imc_state_t* imc_hcd_state_create(TNC_ConnectionID id);
#endif /** IMC_HCD_STATE_H_ @}*/

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AM_CPPFLAGS = \
-I$(top_srcdir)/src/libstrongswan \
-I$(top_srcdir)/src/libtncif \
-I$(top_srcdir)/src/libimcv
AM_CFLAGS = \
$(PLUGIN_CFLAGS)
imcv_LTLIBRARIES = imv-hcd.la
imv_hcd_la_LIBADD = $(top_builddir)/src/libimcv/libimcv.la \
$(top_builddir)/src/libstrongswan/libstrongswan.la
imv_hcd_la_SOURCES = \
imv_hcd.c imv_hcd_state.h imv_hcd_state.c \
imv_hcd_agent.h imv_hcd_agent.c
imv_hcd_la_LDFLAGS = -module -avoid-version -no-undefined

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/*
* Copyright (C) 2015 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_hcd_agent.h"
static const char imv_name[] = "HCD";
static const imv_agent_create_t imv_agent_create = imv_hcd_agent_create;
/* include generic TGC TNC IF-IMV API code below */
#include <imv/imv_if.h>

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/*
* Copyright (C) 2015 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_hcd_agent.h"
#include "imv_hcd_state.h"
#include <imcv.h>
#include <imv/imv_agent.h>
#include <imv/imv_msg.h>
#include <generic/generic_attr_bool.h>
#include <generic/generic_attr_chunk.h>
#include <generic/generic_attr_string.h>
#include <ietf/ietf_attr.h>
#include <ietf/ietf_attr_attr_request.h>
#include <pwg/pwg_attr.h>
#include <pwg/pwg_attr_vendor_smi_code.h>
#include "tcg/seg/tcg_seg_attr_max_size.h"
#include "tcg/seg/tcg_seg_attr_seg_env.h"
#include <tncif_names.h>
#include <tncif_pa_subtypes.h>
#include <pen/pen.h>
#include <utils/debug.h>
#define HCD_MAX_ATTR_SIZE 10000000
typedef struct private_imv_hcd_agent_t private_imv_hcd_agent_t;
typedef enum imv_hcd_attr_t imv_hcd_attr_t;
/* Subscribed PA-TNC message subtypes */
static pen_type_t msg_types[] = {
{ PEN_PWG, PA_SUBTYPE_PWG_HCD }
};
/**
* Flag set when corresponding attribute has been received
*/
enum imv_hcd_attr_t {
IMV_HCD_ATTR_NONE = 0,
IMV_HCD_ATTR_NATURAL_LANG = (1<<0),
IMV_HCD_ATTR_DEFAULT_PWD_ENABLED = (1<<1),
IMV_HCD_ATTR_FIREWALL_SETTING = (1<<2),
IMV_HCD_ATTR_FIRMWARE_NAME = (1<<3),
IMV_HCD_ATTR_FORWARDING_ENABLED = (1<<4),
IMV_HCD_ATTR_MACHINE_TYPE_MODEL = (1<<5),
IMV_HCD_ATTR_PSTN_FAX_ENABLED = (1<<6),
IMV_HCD_ATTR_RESIDENT_APP_NAME = (1<<7),
IMV_HCD_ATTR_TIME_SOURCE = (1<<8),
IMV_HCD_ATTR_USER_APP_ENABLED = (1<<9),
IMV_HCD_ATTR_USER_APP_PERSIST_ENABLED = (1<<10),
IMV_HCD_ATTR_USER_APP_NAME = (1<<11),
IMV_HCD_ATTR_VENDOR_NAME = (1<<12),
IMV_HCD_ATTR_VENDOR_SMI_CODE = (1<<13),
IMV_HCD_ATTR_MUST = (1<<14)-1
};
static imv_hcd_attr_t attr_type_to_flag(pwg_attr_t attr_type)
{
switch (attr_type)
{
case PWG_HCD_ATTRS_NATURAL_LANG:
return IMV_HCD_ATTR_NATURAL_LANG;
case PWG_HCD_DEFAULT_PWD_ENABLED:
return IMV_HCD_ATTR_DEFAULT_PWD_ENABLED;
case PWG_HCD_FIREWALL_SETTING:
return IMV_HCD_ATTR_FIREWALL_SETTING;
case PWG_HCD_FIRMWARE_NAME:
return IMV_HCD_ATTR_FIRMWARE_NAME;
case PWG_HCD_FORWARDING_ENABLED:
return IMV_HCD_ATTR_FORWARDING_ENABLED;
case PWG_HCD_MACHINE_TYPE_MODEL:
return IMV_HCD_ATTR_MACHINE_TYPE_MODEL;
case PWG_HCD_PSTN_FAX_ENABLED:
return IMV_HCD_ATTR_PSTN_FAX_ENABLED;
case PWG_HCD_RESIDENT_APP_NAME:
return IMV_HCD_ATTR_RESIDENT_APP_NAME;
case PWG_HCD_TIME_SOURCE:
return IMV_HCD_ATTR_TIME_SOURCE;
case PWG_HCD_USER_APP_ENABLED:
return IMV_HCD_ATTR_USER_APP_ENABLED;
case PWG_HCD_USER_APP_PERSIST_ENABLED:
return IMV_HCD_ATTR_USER_APP_PERSIST_ENABLED;
case PWG_HCD_USER_APP_NAME:
return IMV_HCD_ATTR_USER_APP_NAME;
case PWG_HCD_VENDOR_NAME:
return IMV_HCD_ATTR_VENDOR_NAME;
case PWG_HCD_VENDOR_SMI_CODE:
return IMV_HCD_ATTR_VENDOR_SMI_CODE;
default:
return IMV_HCD_ATTR_NONE;
}
}
/**
* Private data of an imv_hcd_agent_t object.
*/
struct private_imv_hcd_agent_t {
/**
* Public members of imv_hcd_agent_t
*/
imv_agent_if_t public;
/**
* IMV agent responsible for generic functions
*/
imv_agent_t *agent;
};
METHOD(imv_agent_if_t, bind_functions, TNC_Result,
private_imv_hcd_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_hcd_agent_t *this, TNC_ConnectionID id,
TNC_ConnectionState new_state)
{
TNC_IMV_Action_Recommendation rec;
imv_state_t *state;
imv_session_t *session;
switch (new_state)
{
case TNC_CONNECTION_STATE_CREATE:
state = imv_hcd_state_create(id);
return this->agent->create_state(this->agent, state);
case TNC_CONNECTION_STATE_DELETE:
return this->agent->delete_state(this->agent, id);
case TNC_CONNECTION_STATE_ACCESS_ALLOWED:
case TNC_CONNECTION_STATE_ACCESS_ISOLATED:
case TNC_CONNECTION_STATE_ACCESS_NONE:
if (this->agent->get_state(this->agent, id, &state) && imcv_db)
{
session = state->get_session(state);
if (session->get_policy_started(session))
{
switch (new_state)
{
case TNC_CONNECTION_STATE_ACCESS_ALLOWED:
rec = TNC_IMV_ACTION_RECOMMENDATION_ALLOW;
break;
case TNC_CONNECTION_STATE_ACCESS_ISOLATED:
rec = TNC_IMV_ACTION_RECOMMENDATION_ISOLATE;
break;
case TNC_CONNECTION_STATE_ACCESS_NONE:
default:
rec = TNC_IMV_ACTION_RECOMMENDATION_NO_ACCESS;
}
imcv_db->add_recommendation(imcv_db, session, rec);
if (!imcv_db->policy_script(imcv_db, session, FALSE))
{
DBG1(DBG_IMV, "error in policy script stop");
}
}
}
/* fall through to default state */
default:
return this->agent->change_state(this->agent, id, new_state, NULL);
}
}
/**
* Process a received message
*/
static TNC_Result receive_msg(private_imv_hcd_agent_t *this, imv_state_t *state,
imv_msg_t *in_msg)
{
imv_msg_t *out_msg;
imv_hcd_state_t *hcd_state;
pa_tnc_attr_t *attr;
pen_type_t type;
TNC_Result result;
bool fatal_error = FALSE, assessment = FALSE;
enumerator_t *enumerator;
hcd_state = (imv_hcd_state_t*)state;
/* 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;
}
/* analyze PA-TNC attributes */
enumerator = in_msg->create_attribute_enumerator(in_msg);
while (enumerator->enumerate(enumerator, &attr))
{
type = attr->get_type(attr);
if (type.vendor_id == PEN_PWG)
{
state->set_action_flags(state, attr_type_to_flag(type.type));
switch (type.type)
{
case PWG_HCD_ATTRS_NATURAL_LANG:
case PWG_HCD_MACHINE_TYPE_MODEL:
case PWG_HCD_VENDOR_NAME:
case PWG_HCD_TIME_SOURCE:
case PWG_HCD_FIRMWARE_NAME:
case PWG_HCD_FIRMWARE_PATCHES:
case PWG_HCD_FIRMWARE_STRING_VERSION:
case PWG_HCD_RESIDENT_APP_NAME:
case PWG_HCD_RESIDENT_APP_PATCHES:
case PWG_HCD_RESIDENT_APP_STRING_VERSION:
case PWG_HCD_USER_APP_NAME:
case PWG_HCD_USER_APP_PATCHES:
case PWG_HCD_USER_APP_STRING_VERSION:
{
chunk_t value;
value = attr->get_value(attr);
DBG2(DBG_IMV, "%N: %.*s", pwg_attr_names, type.type,
value.len, value.ptr);
break;
}
case PWG_HCD_FIRMWARE_VERSION:
case PWG_HCD_RESIDENT_APP_VERSION:
case PWG_HCD_USER_APP_VERSION:
{
chunk_t value;
value = attr->get_value(attr);
DBG2(DBG_IMV, "%N: %#B", pwg_attr_names, type.type, &value);
break;
}
case PWG_HCD_CERTIFICATION_STATE:
case PWG_HCD_CONFIGURATION_STATE:
{
chunk_t value;
value = attr->get_value(attr);
DBG2(DBG_IMV, "%N: %B", pwg_attr_names, type.type, &value);
break;
}
case PWG_HCD_DEFAULT_PWD_ENABLED:
case PWG_HCD_FORWARDING_ENABLED:
case PWG_HCD_PSTN_FAX_ENABLED:
case PWG_HCD_USER_APP_ENABLED:
case PWG_HCD_USER_APP_PERSIST_ENABLED:
{
generic_attr_bool_t *attr_cast;
bool status;
attr_cast = (generic_attr_bool_t*)attr;
status = attr_cast->get_status(attr_cast);
DBG2(DBG_IMV, "%N: %s", pwg_attr_names, type.type,
status ? "yes" : "no");
if (type.type == PWG_HCD_USER_APP_ENABLED && !status)
{
/* do not request user applications */
state->set_action_flags(state,
IMV_HCD_ATTR_USER_APP_NAME);
}
break;
}
case PWG_HCD_VENDOR_SMI_CODE:
{
pwg_attr_vendor_smi_code_t *attr_cast;
uint32_t smi_code;
attr_cast = (pwg_attr_vendor_smi_code_t*)attr;
smi_code = attr_cast->get_vendor_smi_code(attr_cast);
DBG2(DBG_IMV, "%N: 0x%06x (%u)", pwg_attr_names, type.type,
smi_code, smi_code);
break;
}
default:
break;
}
}
}
enumerator->destroy(enumerator);
if (fatal_error)
{
state->set_recommendation(state,
TNC_IMV_ACTION_RECOMMENDATION_NO_RECOMMENDATION,
TNC_IMV_EVALUATION_RESULT_ERROR);
assessment = TRUE;
}
if (assessment)
{
hcd_state->set_handshake_state(hcd_state, IMV_HCD_STATE_END);
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_hcd_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_hcd_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;
}
/**
* Build an IETF Attribute Request attribute for missing attributes
*/
static pa_tnc_attr_t* build_attr_request(uint32_t received)
{
pa_tnc_attr_t *attr;
ietf_attr_attr_request_t *attr_cast;
attr = ietf_attr_attr_request_create(PEN_RESERVED, 0);
attr_cast = (ietf_attr_attr_request_t*)attr;
if (!(received & IMV_HCD_ATTR_NATURAL_LANG))
{
attr_cast->add(attr_cast, PEN_PWG, PWG_HCD_ATTRS_NATURAL_LANG);
}
if (!(received & IMV_HCD_ATTR_DEFAULT_PWD_ENABLED))
{
attr_cast->add(attr_cast, PEN_PWG, PWG_HCD_DEFAULT_PWD_ENABLED);
}
if (!(received & IMV_HCD_ATTR_FIREWALL_SETTING))
{
attr_cast->add(attr_cast, PEN_PWG, PWG_HCD_FIREWALL_SETTING);
}
if (!(received & IMV_HCD_ATTR_FIRMWARE_NAME))
{
attr_cast->add(attr_cast, PEN_PWG, PWG_HCD_FIRMWARE_NAME);
}
if (!(received & IMV_HCD_ATTR_FORWARDING_ENABLED))
{
attr_cast->add(attr_cast, PEN_PWG, PWG_HCD_FORWARDING_ENABLED);
}
if (!(received & IMV_HCD_ATTR_MACHINE_TYPE_MODEL))
{
attr_cast->add(attr_cast, PEN_PWG, PWG_HCD_MACHINE_TYPE_MODEL);
}
if (!(received & IMV_HCD_ATTR_PSTN_FAX_ENABLED))
{
attr_cast->add(attr_cast, PEN_PWG, PWG_HCD_PSTN_FAX_ENABLED);
}
if (!(received & IMV_HCD_ATTR_RESIDENT_APP_NAME))
{
attr_cast->add(attr_cast, PEN_PWG, PWG_HCD_RESIDENT_APP_NAME);
}
if (!(received & IMV_HCD_ATTR_TIME_SOURCE))
{
attr_cast->add(attr_cast, PEN_PWG, PWG_HCD_TIME_SOURCE);
}
if (!(received & IMV_HCD_ATTR_USER_APP_ENABLED))
{
attr_cast->add(attr_cast, PEN_PWG, PWG_HCD_USER_APP_ENABLED);
}
if (!(received & IMV_HCD_ATTR_USER_APP_PERSIST_ENABLED))
{
attr_cast->add(attr_cast, PEN_PWG, PWG_HCD_USER_APP_PERSIST_ENABLED);
}
if (!(received & IMV_HCD_ATTR_USER_APP_NAME))
{
attr_cast->add(attr_cast, PEN_PWG, PWG_HCD_USER_APP_NAME);
}
if (!(received & IMV_HCD_ATTR_VENDOR_NAME))
{
attr_cast->add(attr_cast, PEN_PWG, PWG_HCD_VENDOR_NAME);
}
if (!(received & IMV_HCD_ATTR_VENDOR_SMI_CODE))
{
attr_cast->add(attr_cast, PEN_PWG, PWG_HCD_VENDOR_SMI_CODE);
}
attr_cast->add(attr_cast, PEN_PWG, PWG_HCD_CERTIFICATION_STATE);
attr_cast->add(attr_cast, PEN_PWG, PWG_HCD_CONFIGURATION_STATE);
return attr;
}
METHOD(imv_agent_if_t, batch_ending, TNC_Result,
private_imv_hcd_agent_t *this, TNC_ConnectionID id)
{
imv_msg_t *out_msg;
imv_state_t *state;
imv_hcd_state_t *hcd_state;
imv_hcd_handshake_state_t handshake_state;
pa_tnc_attr_t *attr;
TNC_IMVID imv_id;
TNC_Result result = TNC_RESULT_SUCCESS;
uint32_t received;
if (!this->agent->get_state(this->agent, id, &state))
{
return TNC_RESULT_FATAL;
}
hcd_state = (imv_hcd_state_t*)state;
handshake_state = hcd_state->get_handshake_state(hcd_state);
received = state->get_action_flags(state);
imv_id = this->agent->get_id(this->agent);
if (handshake_state == IMV_HCD_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, TNC_IMCID_ANY,
msg_types[0]);
if (handshake_state == IMV_HCD_STATE_INIT)
{
size_t max_attr_size = HCD_MAX_ATTR_SIZE;
size_t max_seg_size;
seg_contract_t *contract;
seg_contract_manager_t *contracts;
char buf[BUF_LEN];
/* 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
- PA_TNC_ATTR_HEADER_SIZE
- TCG_SEG_ATTR_MAX_SIZE_SIZE;
/* 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);
if ((received & IMV_HCD_ATTR_MUST) != IMV_HCD_ATTR_MUST)
{
/* create attribute request for missing mandatory attributes */
out_msg->add_attribute(out_msg, build_attr_request(received));
}
hcd_state->set_handshake_state(hcd_state, IMV_HCD_STATE_ATTR_REQ);
}
/* 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_hcd_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_hcd_agent_t *this)
{
DESTROY_IF(this->agent);
free(this);
}
/**
* Described in header.
*/
imv_agent_if_t *imv_hcd_agent_create(const char *name, TNC_IMVID id,
TNC_Version *actual_version)
{
private_imv_hcd_agent_t *this;
imv_agent_t *agent;
agent = imv_agent_create(name, msg_types, countof(msg_types), id,
actual_version);
if (!agent)
{
return NULL;
}
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,
);
return &this->public;
}

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/*
* Copyright (C) 2015 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_hcd_agent_t imv_hcd_agent
* @{ @ingroup imv_hcd
*/
#ifndef IMV_HCD_AGENT_H_
#define IMV_HCD_AGENT_H_
#include <imv/imv_agent_if.h>
/**
* Creates a HCD 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_hcd_agent_create(const char* name, TNC_IMVID id,
TNC_Version *actual_version);
#endif /** IMV_HCD_AGENT_H_ @}*/

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/*
* Copyright (C) 2015 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_hcd_state.h"
#include <tncif_policy.h>
#include <utils/debug.h>
typedef struct private_imv_hcd_state_t private_imv_hcd_state_t;
/**
* Private data of an imv_hcd_state_t object.
*/
struct private_imv_hcd_state_t {
/**
* Public members of imv_hcd_state_t
*/
imv_hcd_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 OS handshake state
*/
imv_hcd_handshake_state_t handshake_state;
};
METHOD(imv_state_t, get_connection_id, TNC_ConnectionID,
private_imv_hcd_state_t *this)
{
return this->connection_id;
}
METHOD(imv_state_t, has_long, bool,
private_imv_hcd_state_t *this)
{
return this->has_long;
}
METHOD(imv_state_t, has_excl, bool,
private_imv_hcd_state_t *this)
{
return this->has_excl;
}
METHOD(imv_state_t, set_flags, void,
private_imv_hcd_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_hcd_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_hcd_state_t *this)
{
return this->max_msg_len;
}
METHOD(imv_state_t, set_action_flags, void,
private_imv_hcd_state_t *this, uint32_t flags)
{
this->action_flags |= flags;
}
METHOD(imv_state_t, get_action_flags, uint32_t,
private_imv_hcd_state_t *this)
{
return this->action_flags;
}
METHOD(imv_state_t, set_session, void,
private_imv_hcd_state_t *this, imv_session_t *session)
{
this->session = session;
}
METHOD(imv_state_t, get_session, imv_session_t*,
private_imv_hcd_state_t *this)
{
return this->session;
}
METHOD(imv_state_t, get_contracts, seg_contract_manager_t*,
private_imv_hcd_state_t *this)
{
return this->contracts;
}
METHOD(imv_state_t, get_recommendation, void,
private_imv_hcd_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_hcd_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_hcd_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, change_state, void,
private_imv_hcd_state_t *this, TNC_ConnectionState new_state)
{
this->state = new_state;
}
METHOD(imv_state_t, get_reason_string, bool,
private_imv_hcd_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_hcd_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_hcd_state_t *this)
{
DESTROY_IF(this->session);
this->contracts->destroy(this->contracts);
free(this);
}
METHOD(imv_hcd_state_t, set_handshake_state, void,
private_imv_hcd_state_t *this, imv_hcd_handshake_state_t new_state)
{
this->handshake_state = new_state;
}
METHOD(imv_hcd_state_t, get_handshake_state, imv_hcd_handshake_state_t,
private_imv_hcd_state_t *this)
{
return this->handshake_state;
}
/**
* Described in header.
*/
imv_state_t *imv_hcd_state_create(TNC_ConnectionID connection_id)
{
private_imv_hcd_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,
},
.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(),
);
return &this->public.interface;
}

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/*
* Copyright (C) 2015 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_hcd imv_hcd
* @ingroup libimcv_plugins
*
* @defgroup imv_hcd_state_t imv_hcd_state
* @{ @ingroup imv_hcd
*/
#ifndef IMV_HCD_STATE_H_
#define IMV_HCD_STATE_H_
#include <imv/imv_state.h>
#include <library.h>
typedef struct imv_hcd_state_t imv_hcd_state_t;
typedef enum imv_hcd_handshake_state_t imv_hcd_handshake_state_t;
typedef enum os_settings_t os_settings_t;
/**
* IMV OS Handshake States (state machine)
*/
enum imv_hcd_handshake_state_t {
IMV_HCD_STATE_INIT,
IMV_HCD_STATE_ATTR_REQ,
IMV_HCD_STATE_END
};
/**
* Internal state of an imv_hcd_t connection instance
*/
struct imv_hcd_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_hcd_state_t *this,
imv_hcd_handshake_state_t new_state);
/**
* Get state of the handshake
*
* @return the handshake state of IMV
*/
imv_hcd_handshake_state_t (*get_handshake_state)(imv_hcd_state_t *this);
};
/**
* Create an imv_hcd_state_t instance
*
* @param id connection ID
*/
imv_state_t* imv_hcd_state_create(TNC_ConnectionID id);
#endif /** IMV_HCD_STATE_H_ @}*/