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Request IF-M segmentation contract for TCG/PTS subtype

This commit is contained in:
Andreas Steffen 2014-10-16 07:49:14 +02:00
parent cbb86a2df3
commit 08385de6e2
1 changed files with 27 additions and 0 deletions
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27
src/libimcv/plugins/imv_attestation/imv_attestation_agent.c
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@ -39,6 +39,8 @@
#include <tcg/pts/tcg_pts_attr_proto_caps.h>
#include <tcg/pts/tcg_pts_attr_req_file_meas.h>
#include <tcg/pts/tcg_pts_attr_req_file_meta.h>
#include "tcg/seg/tcg_seg_attr_max_size.h"
#include "tcg/seg/tcg_seg_attr_seg_env.h"
#include <pts/pts.h>
#include <pts/pts_database.h>
#include <pts/pts_creds.h>
@ -51,6 +53,8 @@
#include <credentials/credential_manager.h>
#include <collections/linked_list.h>
#define FILE_MEAS_MAX_ATTR_SIZE 100000000
typedef struct private_imv_attestation_agent_t private_imv_attestation_agent_t;
/* Subscribed PA-TNC message subtypes */
@ -465,12 +469,35 @@ METHOD(imv_agent_if_t, batch_ending, TNC_Result,
if (handshake_state == IMV_ATTESTATION_STATE_INIT)
{
size_t max_attr_size = FILE_MEAS_MAX_ATTR_SIZE;
size_t max_seg_size;
seg_contract_t *contract;
seg_contract_manager_t *contracts;
pa_tnc_attr_t *attr;
pts_proto_caps_flag_t flags;
char buf[BUF_LEN];
out_msg = imv_msg_create(this->agent, state, id, imv_id, TNC_IMCID_ANY,
msg_types[0]);
/* 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);
/* Send Request Protocol Capabilities attribute */
flags = pts->get_proto_caps(pts);
attr = tcg_pts_attr_proto_caps_create(flags, TRUE);