/**
- * ieee802_1x_kay_is_in_peer
- */
-static Boolean
-ieee802_1x_kay_is_in_peer(struct ieee802_1x_mka_participant *participant,
- const u8 *mi)
-{
- return ieee802_1x_kay_is_in_live_peer(participant, mi) ||
- ieee802_1x_kay_is_in_potential_peer(participant, mi);
-}
-
-
-/**
* ieee802_1x_kay_get_peer
*/
static struct ieee802_1x_kay_peer *
*/
static struct macsec_ciphersuite *
ieee802_1x_kay_get_cipher_suite(struct ieee802_1x_mka_participant *participant,
- u8 *cs_id)
+ const u8 *cs_id)
{
unsigned int i;
+ u64 cs;
+ be64 _cs;
+
+ os_memcpy(&_cs, cs_id, CS_ID_LEN);
+ cs = be_to_host64(_cs);
for (i = 0; i < CS_TABLE_SIZE; i++) {
- if (os_memcmp(cipher_suite_tbl[i].id, cs_id, CS_ID_LEN) == 0)
+ if (cipher_suite_tbl[i].id == cs)
return &cipher_suite_tbl[i];
}
os_memcpy(body->actor_mi, participant->mi, sizeof(body->actor_mi));
participant->mn = participant->mn + 1;
body->actor_mn = host_to_be32(participant->mn);
- os_memcpy(body->algo_agility, participant->kay->algo_agility,
+ os_memcpy(body->algo_agility, kay->algo_agility,
sizeof(body->algo_agility));
os_memcpy(body->ckn, participant->ckn.name, participant->ckn.len);
struct wpabuf *buf)
{
struct ieee802_1x_mka_sak_use_body *body;
+ struct ieee802_1x_kay *kay = participant->kay;
unsigned int length;
u32 pn = 1;
}
/* data protect, lowest accept packet number */
- body->delay_protect = participant->kay->macsec_replay_protect;
+ body->delay_protect = kay->macsec_replay_protect;
pn = ieee802_1x_mka_get_lpn(participant, &participant->lki);
- if (pn > participant->kay->pn_exhaustion) {
+ if (pn > kay->pn_exhaustion) {
wpa_printf(MSG_WARNING, "KaY: My LPN exhaustion");
if (participant->is_key_server)
participant->new_sak = TRUE;
body->olpn = host_to_be32(pn);
/* plain tx, plain rx */
- if (participant->kay->macsec_protect)
- body->ptx = FALSE;
- else
- body->ptx = TRUE;
-
- if (participant->kay->macsec_validate == Strict)
- body->prx = FALSE;
- else
- body->prx = TRUE;
+ body->ptx = !kay->macsec_protect;
+ body->prx = kay->macsec_validate != Strict;
/* latest key: rx, tx, key server member identifier key number */
body->lan = participant->lan;
- os_memcpy(body->lsrv_mi, participant->lki.mi,
- sizeof(body->lsrv_mi));
+ os_memcpy(body->lsrv_mi, participant->lki.mi, sizeof(body->lsrv_mi));
body->lkn = host_to_be32(participant->lki.kn);
body->lrx = participant->lrx;
body->ltx = participant->ltx;
/* set CP's variable */
if (body->ltx) {
- if (!participant->kay->tx_enable)
- participant->kay->tx_enable = TRUE;
-
- if (!participant->kay->port_enable)
- participant->kay->port_enable = TRUE;
- }
- if (body->lrx) {
- if (!participant->kay->rx_enable)
- participant->kay->rx_enable = TRUE;
+ kay->tx_enable = TRUE;
+ kay->port_enable = TRUE;
}
+ if (body->lrx)
+ kay->rx_enable = TRUE;
ieee802_1x_mka_dump_sak_use_body(body);
return 0;
u32 lpn;
Boolean all_receiving;
Boolean found;
+ struct ieee802_1x_kay *kay = participant->kay;
if (!participant->principal) {
wpa_printf(MSG_WARNING, "KaY: Participant is not principal");
peer->sak_used = TRUE;
}
if (body->ltx && peer->is_key_server) {
- ieee802_1x_cp_set_servertransmitting(
- participant->kay->cp, TRUE);
- ieee802_1x_cp_sm_step(participant->kay->cp);
+ ieee802_1x_cp_set_servertransmitting(kay->cp, TRUE);
+ ieee802_1x_cp_sm_step(kay->cp);
}
}
}
if (all_receiving) {
participant->to_dist_sak = FALSE;
- ieee802_1x_cp_set_allreceiving(participant->kay->cp, TRUE);
- ieee802_1x_cp_sm_step(participant->kay->cp);
+ ieee802_1x_cp_set_allreceiving(kay->cp, TRUE);
+ ieee802_1x_cp_sm_step(kay->cp);
}
/* if i'm key server, and detects peer member pn exhaustion, rekey.*/
lpn = be_to_host32(body->llpn);
- if (lpn > participant->kay->pn_exhaustion) {
+ if (lpn > kay->pn_exhaustion) {
if (participant->is_key_server) {
participant->new_sak = TRUE;
wpa_printf(MSG_WARNING, "KaY: Peer LPN exhaustion");
/* FIXME: Secy creates txsa with default npn. If MKA detected Latest Key
* npn is larger than txsa's npn, set it to txsa.
*/
- secy_get_transmit_next_pn(participant->kay, txsa);
+ secy_get_transmit_next_pn(kay, txsa);
if (lpn > txsa->next_pn) {
- secy_set_transmit_next_pn(participant->kay, txsa);
+ secy_set_transmit_next_pn(kay, txsa);
wpa_printf(MSG_INFO, "KaY: update lpn =0x%x", lpn);
}
ieee802_1x_mka_dist_sak_body_present(
struct ieee802_1x_mka_participant *participant)
{
- if (!participant->to_dist_sak || !participant->new_key)
- return FALSE;
-
- return TRUE;
+ return participant->to_dist_sak && participant->new_key;
}
struct ieee802_1x_mka_participant *participant)
{
int length = MKA_HDR_LEN;
- int cs_index = participant->kay->macsec_csindex;
+ unsigned int cs_index = participant->kay->macsec_csindex;
if (participant->advised_desired) {
length = sizeof(struct ieee802_1x_mka_dist_sak_body);
struct ieee802_1x_mka_dist_sak_body *body;
struct data_key *sak;
unsigned int length;
- int cs_index;
+ unsigned int cs_index;
int sak_pos;
length = ieee802_1x_mka_get_dist_sak_length(participant);
cs_index = participant->kay->macsec_csindex;
sak_pos = 0;
if (cs_index != DEFAULT_CS_INDEX) {
- os_memcpy(body->sak, cipher_suite_tbl[cs_index].id, CS_ID_LEN);
+ be64 cs;
+
+ cs = host_to_be64(cipher_suite_tbl[cs_index].id);
+ os_memcpy(body->sak, &cs, CS_ID_LEN);
sak_pos = CS_ID_LEN;
}
if (aes_wrap(participant->kek.key, 16,
int sak_len;
u8 *wrap_sak;
u8 *unwrap_sak;
+ struct ieee802_1x_kay *kay = participant->kay;
hdr = (struct ieee802_1x_mka_hdr *) mka_msg;
body_len = get_mka_param_body_len(hdr);
"KaY: I can't accept the distributed SAK as myself is key server ");
return -1;
}
- if (!participant->kay->macsec_desired ||
- participant->kay->macsec_capable == MACSEC_CAP_NOT_IMPLEMENTED) {
+ if (!kay->macsec_desired ||
+ kay->macsec_capable == MACSEC_CAP_NOT_IMPLEMENTED) {
wpa_printf(MSG_ERROR,
"KaY: I am not MACsec-desired or without MACsec capable");
return -1;
"KaY: The key server is not in my live peers list");
return -1;
}
- if (!sci_equal(&participant->kay->key_server_sci, &peer->sci)) {
+ if (!sci_equal(&kay->key_server_sci, &peer->sci)) {
wpa_printf(MSG_ERROR, "KaY: The key server is not elected");
return -1;
}
+
if (body_len == 0) {
- participant->kay->authenticated = TRUE;
- participant->kay->secured = FALSE;
- participant->kay->failed = FALSE;
+ kay->authenticated = TRUE;
+ kay->secured = FALSE;
+ kay->failed = FALSE;
participant->advised_desired = FALSE;
- ieee802_1x_cp_connect_authenticated(participant->kay->cp);
- ieee802_1x_cp_sm_step(participant->kay->cp);
+ ieee802_1x_cp_connect_authenticated(kay->cp);
+ ieee802_1x_cp_sm_step(kay->cp);
wpa_printf(MSG_WARNING, "KaY:The Key server advise no MACsec");
participant->to_use_sak = TRUE;
return 0;
}
+
participant->advised_desired = TRUE;
- participant->kay->authenticated = FALSE;
- participant->kay->secured = TRUE;
- participant->kay->failed = FALSE;
- ieee802_1x_cp_connect_secure(participant->kay->cp);
- ieee802_1x_cp_sm_step(participant->kay->cp);
+ kay->authenticated = FALSE;
+ kay->secured = TRUE;
+ kay->failed = FALSE;
+ ieee802_1x_cp_connect_secure(kay->cp);
+ ieee802_1x_cp_sm_step(kay->cp);
body = (struct ieee802_1x_mka_dist_sak_body *)mka_msg;
ieee802_1x_mka_dump_dist_sak_body(body);
return 0;
}
}
+
if (body_len == 28) {
sak_len = DEFAULT_SA_KEY_LEN;
wrap_sak = body->sak;
- participant->kay->macsec_csindex = DEFAULT_CS_INDEX;
+ kay->macsec_csindex = DEFAULT_CS_INDEX;
} else {
cs = ieee802_1x_kay_get_cipher_suite(participant, body->sak);
if (!cs) {
}
sak_len = cs->sak_len;
wrap_sak = body->sak + CS_ID_LEN;
- participant->kay->macsec_csindex = cs->index;
+ kay->macsec_csindex = cs->index;
}
unwrap_sak = os_zalloc(sak_len);
dl_list_add(&participant->sak_list, &sa_key->list);
- ieee802_1x_cp_set_ciphersuite(
- participant->kay->cp,
- cipher_suite_tbl[participant->kay->macsec_csindex].id);
- ieee802_1x_cp_sm_step(participant->kay->cp);
- ieee802_1x_cp_set_offset(participant->kay->cp, body->confid_offset);
- ieee802_1x_cp_sm_step(participant->kay->cp);
- ieee802_1x_cp_set_distributedki(participant->kay->cp, &sak_ki);
- ieee802_1x_cp_set_distributedan(participant->kay->cp, body->dan);
- ieee802_1x_cp_signal_newsak(participant->kay->cp);
- ieee802_1x_cp_sm_step(participant->kay->cp);
+ ieee802_1x_cp_set_ciphersuite(kay->cp,
+ cipher_suite_tbl[kay->macsec_csindex].id);
+ ieee802_1x_cp_sm_step(kay->cp);
+ ieee802_1x_cp_set_offset(kay->cp, body->confid_offset);
+ ieee802_1x_cp_sm_step(kay->cp);
+ ieee802_1x_cp_set_distributedki(kay->cp, &sak_ki);
+ ieee802_1x_cp_set_distributedan(kay->cp, body->dan);
+ ieee802_1x_cp_signal_newsak(kay->cp);
+ ieee802_1x_cp_sm_step(kay->cp);
participant->to_use_sak = TRUE;
conf->key, conf->key_len);
os_memcpy(conf->ki.mi, participant->mi, MI_LEN);
- conf->ki.kn = participant->kay->dist_kn;
- conf->an = participant->kay->dist_an;
+ conf->ki.kn = kay->dist_kn;
+ conf->an = kay->dist_an;
conf->offset = kay->macsec_confidentiality;
conf->rx = TRUE;
conf->tx = TRUE;
participant->new_key = sa_key;
dl_list_add(&participant->sak_list, &sa_key->list);
- ieee802_1x_cp_set_ciphersuite(participant->kay->cp,
+ ieee802_1x_cp_set_ciphersuite(kay->cp,
cipher_suite_tbl[kay->macsec_csindex].id);
ieee802_1x_cp_sm_step(kay->cp);
ieee802_1x_cp_set_offset(kay->cp, conf->offset);
struct ieee802_1x_kay_peer, list)
peer->sak_used = FALSE;
- participant->kay->dist_kn++;
- participant->kay->dist_an++;
- if (participant->kay->dist_an > 3)
- participant->kay->dist_an = 0;
+ kay->dist_kn++;
+ kay->dist_an++;
+ if (kay->dist_an > 3)
+ kay->dist_an = 0;
- participant->kay->dist_time = time(NULL);
+ kay->dist_time = time(NULL);
os_free(conf->key);
os_free(conf);
}
+static int compare_priorities(const struct ieee802_1x_kay_peer *peer,
+ const struct ieee802_1x_kay_peer *other)
+{
+ if (peer->key_server_priority < other->key_server_priority)
+ return -1;
+ if (other->key_server_priority < peer->key_server_priority)
+ return 1;
+
+ return os_memcmp(peer->sci.addr, other->sci.addr, ETH_ALEN);
+}
+
+
/**
* ieee802_1x_kay_elect_key_server - elect the key server
* when to elect: whenever the live peers list changes
continue;
}
- if (peer->key_server_priority <
- key_server->key_server_priority) {
+ if (compare_priorities(peer, key_server) < 0)
key_server = peer;
- } else if (peer->key_server_priority ==
- key_server->key_server_priority) {
- if (os_memcmp(peer->sci.addr, key_server->sci.addr,
- ETH_ALEN) < 0)
- key_server = peer;
- }
}
/* elect the key server between me and the above elected peer */
i_is_key_server = FALSE;
if (key_server && participant->can_be_key_server) {
- if (kay->actor_priority
- < key_server->key_server_priority) {
+ struct ieee802_1x_kay_peer tmp;
+
+ tmp.key_server_priority = kay->actor_priority;
+ os_memcpy(&tmp.sci, &kay->actor_sci, sizeof(tmp.sci));
+ if (compare_priorities(&tmp, key_server) < 0)
i_is_key_server = TRUE;
- } else if (kay->actor_priority
- == key_server->key_server_priority) {
- if (os_memcmp(kay->actor_sci.addr, key_server->sci.addr,
- ETH_ALEN) < 0)
- i_is_key_server = TRUE;
- }
} else if (participant->can_be_key_server) {
i_is_key_server = TRUE;
}
participant = (struct ieee802_1x_mka_participant *)eloop_ctx;
kay = participant->kay;
if (participant->cak_life) {
- if (now > participant->cak_life) {
- kay->authenticated = FALSE;
- kay->secured = FALSE;
- kay->failed = TRUE;
- ieee802_1x_kay_delete_mka(kay, &participant->ckn);
- return;
- }
+ if (now > participant->cak_life)
+ goto delete_mka;
}
/* should delete MKA instance if there are not live peers
* when the MKA life elapsed since its creating */
if (participant->mka_life) {
if (dl_list_empty(&participant->live_peers)) {
- if (now > participant->mka_life) {
- kay->authenticated = FALSE;
- kay->secured = FALSE;
- kay->failed = TRUE;
- ieee802_1x_kay_delete_mka(kay,
- &participant->ckn);
- return;
- }
+ if (now > participant->mka_life)
+ goto delete_mka;
} else {
participant->mka_life = 0;
}
eloop_register_timeout(MKA_HELLO_TIME / 1000, 0,
ieee802_1x_participant_timer,
participant, NULL);
+
+ return;
+
+delete_mka:
+ kay->authenticated = FALSE;
+ kay->secured = FALSE;
+ kay->failed = TRUE;
+ ieee802_1x_kay_delete_mka(kay, &participant->ckn);
}
wpa_printf(MSG_ERROR, "KaY: omac1_aes_128 failed");
return -1;
}
+
msg_icv = ieee802_1x_mka_decode_icv_body(participant, (u8 *) mka_hdr,
mka_msg_len);
-
- if (msg_icv) {
- if (os_memcmp_const(msg_icv, icv,
- mka_alg_tbl[kay->mka_algindex].icv_len) !=
- 0) {
- wpa_printf(MSG_ERROR,
- "KaY: Computed ICV is not equal to Received ICV");
- return -1;
- }
- } else {
+ if (!msg_icv) {
wpa_printf(MSG_ERROR, "KaY: No ICV");
return -1;
}
+ if (os_memcmp_const(msg_icv, icv,
+ mka_alg_tbl[kay->mka_algindex].icv_len) != 0) {
+ wpa_printf(MSG_ERROR,
+ "KaY: Computed ICV is not equal to Received ICV");
+ return -1;
+ }
return 0;
}
u8 body_type;
int i;
const u8 *pos;
- Boolean my_included;
Boolean handled[256];
if (ieee802_1x_kay_mkpdu_sanity_check(kay, buf, len))
left_len -= body_len + MKA_HDR_LEN;
/* check i am in the peer's peer list */
- my_included = ieee802_1x_mka_i_in_peerlist(participant, pos, left_len);
- if (my_included) {
+ if (ieee802_1x_mka_i_in_peerlist(participant, pos, left_len) &&
+ !ieee802_1x_kay_is_in_live_peer(participant,
+ participant->current_peer_id.mi)) {
/* accept the peer as live peer */
- if (!ieee802_1x_kay_is_in_peer(
- participant,
- participant->current_peer_id.mi)) {
- if (!ieee802_1x_kay_create_live_peer(
- participant,
- participant->current_peer_id.mi,
- be_to_host32(
- participant->current_peer_id.mn)))
- return -1;
- ieee802_1x_kay_elect_key_server(participant);
- ieee802_1x_kay_decide_macsec_use(participant);
- }
if (ieee802_1x_kay_is_in_potential_peer(
participant, participant->current_peer_id.mi)) {
if (!ieee802_1x_kay_move_live_peer(
be_to_host32(participant->
current_peer_id.mn)))
return -1;
- ieee802_1x_kay_elect_key_server(participant);
- ieee802_1x_kay_decide_macsec_use(participant);
+ } else if (!ieee802_1x_kay_create_live_peer(
+ participant, participant->current_peer_id.mi,
+ be_to_host32(participant->
+ current_peer_id.mn))) {
+ return -1;
}
+
+ ieee802_1x_kay_elect_key_server(participant);
+ ieee802_1x_kay_decide_macsec_use(participant);
}
/*
* ieee802_1x_kay_change_cipher_suite -
*/
int
-ieee802_1x_kay_change_cipher_suite(struct ieee802_1x_kay *kay, int cs_index)
+ieee802_1x_kay_change_cipher_suite(struct ieee802_1x_kay *kay,
+ unsigned int cs_index)
{
struct ieee802_1x_mka_participant *participant;
if (!kay)
return -1;
- if ((unsigned int) cs_index >= CS_TABLE_SIZE) {
+ if (cs_index >= CS_TABLE_SIZE) {
wpa_printf(MSG_ERROR,
"KaY: Configured cipher suite index is out of range");
return -1;
projects / mech_eap.git / blobdiff