diff options
Diffstat (limited to 'src/libimcv')
| -rw-r--r-- | src/libimcv/imv/imv_agent.c | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/src/libimcv/imv/imv_agent.c b/src/libimcv/imv/imv_agent.c index 6a33e396c..99683bc72 100644 --- a/src/libimcv/imv/imv_agent.c +++ b/src/libimcv/imv/imv_agent.c @@ -18,8 +18,11 @@ #include "ietf/ietf_attr_assess_result.h" #include <tncif_names.h> +#include <tncif_identity.h> #include <utils/debug.h> +#include <collections/linked_list.h> +#include <bio/bio_reader.h> #include <threading/rwlock.h> typedef struct private_imv_agent_t private_imv_agent_t; @@ -352,12 +355,59 @@ static u_int32_t get_uint_attribute(private_imv_agent_t *this, TNC_ConnectionID return 0; } +/** + * Read a TNC identity attribute + */ +static linked_list_t* get_identity_attribute(private_imv_agent_t *this, + TNC_ConnectionID id, + TNC_AttributeID attribute_id) +{ + TNC_UInt32 len; + char buf[2048]; + u_int32_t count; + tncif_identity_t *tnc_id; + bio_reader_t *reader; + linked_list_t *list; + + list = linked_list_create(); + + if (!this->get_attribute || + this->get_attribute(this->id, id, attribute_id, sizeof(buf), buf, &len) + != TNC_RESULT_SUCCESS || len > sizeof(buf)) + { + return list; + } + + reader = bio_reader_create(chunk_create(buf, len)); + if (!reader->read_uint32(reader, &count)) + { + goto end; + } + while (count--) + { + tnc_id = tncif_identity_create_empty(); + if (!tnc_id->process(tnc_id, reader)) + { + tnc_id->destroy(tnc_id); + goto end; + } + list->insert_last(list, tnc_id); + } + +end: + reader->destroy(reader); + return list; + } + METHOD(imv_agent_t, create_state, TNC_Result, private_imv_agent_t *this, imv_state_t *state) { TNC_ConnectionID conn_id; char *tnccs_p = NULL, *tnccs_v = NULL, *t_p = NULL, *t_v = NULL; bool has_long = FALSE, has_excl = FALSE, has_soh = FALSE; + linked_list_t *ar_identities; + enumerator_t *enumerator; + tncif_identity_t *tnc_id; u_int32_t max_msg_len; conn_id = state->get_connection_id(state); @@ -378,6 +428,7 @@ METHOD(imv_agent_t, create_state, TNC_Result, t_p = get_str_attribute(this, conn_id, TNC_ATTRIBUTEID_IFT_PROTOCOL); t_v = get_str_attribute(this, conn_id, TNC_ATTRIBUTEID_IFT_VERSION); max_msg_len = get_uint_attribute(this, conn_id, TNC_ATTRIBUTEID_MAX_MESSAGE_SIZE); + ar_identities = get_identity_attribute(this, conn_id, TNC_ATTRIBUTEID_AR_IDENTITIES); state->set_flags(state, has_long, has_excl); state->set_max_msg_len(state, max_msg_len); @@ -389,6 +440,64 @@ METHOD(imv_agent_t, create_state, TNC_Result, DBG2(DBG_IMV, " over %s %s with maximum PA-TNC message size of %u bytes", t_p ? t_p:"?", t_v ? t_v :"?", max_msg_len); + enumerator = ar_identities->create_enumerator(ar_identities); + while (enumerator->enumerate(enumerator, &tnc_id)) + { + pen_type_t id_type, subject_type, auth_type; + int tcg_id_type, tcg_subject_type, tcg_auth_type; + chunk_t id_value; + id_type_t ike_type; + identification_t *id; + + id_type = tnc_id->get_identity_type(tnc_id); + id_value = tnc_id->get_identity_value(tnc_id); + subject_type = tnc_id->get_subject_type(tnc_id); + auth_type = tnc_id->get_auth_type(tnc_id); + + tcg_id_type = (id_type.vendor_id == PEN_TCG) ? + id_type.type : TNC_ID_UNKNOWN; + tcg_subject_type = (subject_type.vendor_id == PEN_TCG) ? + subject_type.type : TNC_SUBJECT_UNKNOWN; + tcg_auth_type = (auth_type.vendor_id == PEN_TCG) ? + auth_type.type : TNC_AUTH_UNKNOWN; + + switch (tcg_id_type) + { + case TNC_ID_IPV4_ADDR: + ike_type = ID_IPV4_ADDR; + break; + case TNC_ID_IPV6_ADDR: + ike_type = ID_IPV6_ADDR; + break; + case TNC_ID_FQDN: + case TNC_ID_USER_NAME: + ike_type = ID_FQDN; + break; + case TNC_ID_RFC822_ADDR: + ike_type = ID_RFC822_ADDR; + break; + case TNC_ID_DER_ASN1_DN: + ike_type = ID_DER_ASN1_DN; + break; + case TNC_ID_DER_ASN1_GN: + ike_type = ID_IPV4_ADDR; + break; + case TNC_ID_UNKNOWN: + default: + ike_type = ID_KEY_ID; + break; + } + + id = identification_create_from_encoding(ike_type, id_value); + DBG2(DBG_IMV, "%N identity '%Y' authenticated by %N", + TNC_Subject_names, tcg_subject_type, id, + TNC_Authentication_names, tcg_auth_type); + id->destroy(id); + } + enumerator->destroy(enumerator); + + ar_identities->destroy_offset(ar_identities, + offsetof(tncif_identity_t, destroy)); free(tnccs_p); free(tnccs_v); free(t_p); |