#define PENDING_PN_EXHAUSTION 0xC0000000
+#define MKA_ALIGN_LENGTH(len) (((len) + 0x3) & ~0x3)
+
/* IEEE Std 802.1X-2010, Table 9-1 - MKA Algorithm Agility */
#define MKA_ALGO_AGILITY_2009 { 0x00, 0x80, 0xC2, 0x01 }
static u8 mka_algo_agility[4] = MKA_ALGO_AGILITY_2009;
static struct macsec_ciphersuite cipher_suite_tbl[] = {
/* GCM-AES-128 */
{
- CS_ID_GCM_AES_128,
- CS_NAME_GCM_AES_128,
- MACSEC_CAP_INTEG_AND_CONF_0_30_50,
- 16,
-
- 0 /* index */
+ .id = CS_ID_GCM_AES_128,
+ .name = CS_NAME_GCM_AES_128,
+ .capable = MACSEC_CAP_INTEG_AND_CONF_0_30_50,
+ .sak_len = DEFAULT_SA_KEY_LEN,
+ .index = 0,
},
};
#define CS_TABLE_SIZE (ARRAY_SIZE(cipher_suite_tbl))
static struct mka_alg mka_alg_tbl[] = {
{
- MKA_ALGO_AGILITY_2009,
+ .parameter = MKA_ALGO_AGILITY_2009,
+
/* 128-bit CAK, KEK, ICK, ICV */
- 16, 16, 16, 16,
- ieee802_1x_cak_128bits_aes_cmac,
- ieee802_1x_ckn_128bits_aes_cmac,
- ieee802_1x_kek_128bits_aes_cmac,
- ieee802_1x_ick_128bits_aes_cmac,
- ieee802_1x_icv_128bits_aes_cmac,
-
- 1, /* index */
+ .cak_len = DEFAULT_ICV_LEN,
+ .kek_len = DEFAULT_ICV_LEN,
+ .ick_len = DEFAULT_ICV_LEN,
+ .icv_len = DEFAULT_ICV_LEN,
+
+ .cak_trfm = ieee802_1x_cak_128bits_aes_cmac,
+ .ckn_trfm = ieee802_1x_ckn_128bits_aes_cmac,
+ .kek_trfm = ieee802_1x_kek_128bits_aes_cmac,
+ .ick_trfm = ieee802_1x_ick_128bits_aes_cmac,
+ .icv_hash = ieee802_1x_icv_128bits_aes_cmac,
+
+ .index = 1,
},
};
#define MKA_ALG_TABLE_SIZE (ARRAY_SIZE(mka_alg_tbl))
}
-struct mka_param_body_handler {
- int (*body_tx)(struct ieee802_1x_mka_participant *participant,
- struct wpabuf *buf);
- int (*body_rx)(struct ieee802_1x_mka_participant *participant,
- const u8 *mka_msg, size_t msg_len);
- int (*body_length)(struct ieee802_1x_mka_participant *participant);
- Boolean (*body_present)(struct ieee802_1x_mka_participant *participant);
-};
-
-
static void set_mka_param_body_len(void *body, unsigned int len)
{
struct ieee802_1x_mka_hdr *hdr = body;
wpa_printf(MSG_DEBUG, "\tPriority......: %d", body->priority);
wpa_printf(MSG_DEBUG, "\tKeySvr........: %d", body->key_server);
wpa_printf(MSG_DEBUG, "\tMACSecDesired.: %d", body->macsec_desired);
- wpa_printf(MSG_DEBUG, "\tMACSecCapable.: %d", body->macsec_capbility);
- wpa_printf(MSG_DEBUG, "\tBody Length...: %d", (int) body_len);
+ wpa_printf(MSG_DEBUG, "\tMACSecCapable.: %d", body->macsec_capability);
+ wpa_printf(MSG_DEBUG, "\tBody Length...: %zu", body_len);
wpa_printf(MSG_DEBUG, "\tSCI MAC.......: " MACSTR,
MAC2STR(body->actor_sci.addr));
wpa_printf(MSG_DEBUG, "\tSCI Port .....: %d",
body_len = get_mka_param_body_len(body);
if (body->type == MKA_LIVE_PEER_LIST) {
wpa_printf(MSG_DEBUG, "*** Live Peer List ***");
- wpa_printf(MSG_DEBUG, "\tBody Length...: %d", (int) body_len);
+ wpa_printf(MSG_DEBUG, "\tBody Length...: %zu", body_len);
} else if (body->type == MKA_POTENTIAL_PEER_LIST) {
wpa_printf(MSG_DEBUG, "*** Potential Live Peer List ***");
- wpa_printf(MSG_DEBUG, "\tBody Length...: %d", (int) body_len);
+ wpa_printf(MSG_DEBUG, "\tBody Length...: %zu", body_len);
}
for (i = 0; i < body_len; i += MI_LEN + sizeof(mn)) {
wpa_printf(MSG_INFO, "\tDistributed AN........: %d", body->dan);
wpa_printf(MSG_INFO, "\tConfidentiality Offset: %d",
body->confid_offset);
- wpa_printf(MSG_INFO, "\tBody Length...........: %d", (int) body_len);
+ wpa_printf(MSG_INFO, "\tBody Length...........: %zu", body_len);
if (!body_len)
return;
return participant;
}
- wpa_printf(MSG_DEBUG, "KaY: principal participant is not founded");
+ wpa_printf(MSG_DEBUG, "KaY: principal participant is not found");
return NULL;
}
/**
- * ieee802_1x_kay_is_in_potential_peer
+ * ieee802_1x_kay_get_potential_peer
*/
-static Boolean
-ieee802_1x_kay_is_in_potential_peer(
+static struct ieee802_1x_kay_peer *
+ieee802_1x_kay_get_potential_peer(
struct ieee802_1x_mka_participant *participant, const u8 *mi)
{
- return get_peer_mi(&participant->potential_peers, mi) != NULL;
+ return get_peer_mi(&participant->potential_peers, mi);
}
/**
- * ieee802_1x_kay_is_in_live_peer
+ * ieee802_1x_kay_get_live_peer
+ */
+static struct ieee802_1x_kay_peer *
+ieee802_1x_kay_get_live_peer(struct ieee802_1x_mka_participant *participant,
+ const u8 *mi)
+{
+ return get_peer_mi(&participant->live_peers, mi);
+}
+
+
+/**
+ * ieee802_1x_kay_is_in_potential_peer
*/
static Boolean
-ieee802_1x_kay_is_in_live_peer(
+ieee802_1x_kay_is_in_potential_peer(
struct ieee802_1x_mka_participant *participant, const u8 *mi)
{
- return get_peer_mi(&participant->live_peers, mi) != NULL;
+ return ieee802_1x_kay_get_potential_peer(participant, mi) != NULL;
}
/**
- * ieee802_1x_kay_is_in_peer
+ * ieee802_1x_kay_is_in_live_peer
*/
static Boolean
-ieee802_1x_kay_is_in_peer(struct ieee802_1x_mka_participant *participant,
- const u8 *mi)
+ieee802_1x_kay_is_in_live_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);
+ return ieee802_1x_kay_get_live_peer(participant, mi) != NULL;
}
{
struct ieee802_1x_kay_peer *peer;
- peer = get_peer_mi(&participant->live_peers, mi);
+ peer = ieee802_1x_kay_get_live_peer(participant, mi);
if (peer)
return peer;
- return get_peer_mi(&participant->potential_peers, mi);
-}
-
-
-/**
- * ieee802_1x_kay_get_live_peer
- */
-static struct ieee802_1x_kay_peer *
-ieee802_1x_kay_get_live_peer(struct ieee802_1x_mka_participant *participant,
- const u8 *mi)
-{
- return get_peer_mi(&participant->live_peers, mi);
+ return ieee802_1x_kay_get_potential_peer(participant, mi);
}
*/
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)
- break;
+ if (cipher_suite_tbl[i].id == cs)
+ return &cipher_suite_tbl[i];
}
- if (i >= CS_TABLE_SIZE)
- return NULL;
- return &cipher_suite_tbl[i];
+ return NULL;
+}
+
+
+static Boolean sci_equal(const struct ieee802_1x_mka_sci *a,
+ const struct ieee802_1x_mka_sci *b)
+{
+ return os_memcmp(a, b, sizeof(struct ieee802_1x_mka_sci)) == 0;
}
dl_list_for_each(peer, &participant->live_peers,
struct ieee802_1x_kay_peer, list) {
- if (os_memcmp(&peer->sci, sci, sizeof(peer->sci)) == 0)
+ if (sci_equal(&peer->sci, sci))
return peer;
}
dl_list_for_each(peer, &participant->potential_peers,
struct ieee802_1x_kay_peer, list) {
- if (os_memcmp(&peer->sci, sci, sizeof(peer->sci)) == 0)
+ if (sci_equal(&peer->sci, sci))
return peer;
}
dl_list_add(&psc->sa_list, &psa->list);
wpa_printf(MSG_DEBUG,
- "KaY: Create receive SA(AN: %d lowest_pn: %u of SC(channel: %d)",
- (int) an, lowest_pn, psc->channel);
+ "KaY: Create receive SA(AN: %hhu lowest_pn: %u of SC(channel: %d)",
+ an, lowest_pn, psc->channel);
return psa;
}
{
psa->pkey = NULL;
wpa_printf(MSG_DEBUG,
- "KaY: Delete receive SA(an: %d) of SC(channel: %d)",
- psa->an, psa->sc->channel);
+ "KaY: Delete receive SA(an: %hhu) of SC",
+ psa->an);
dl_list_del(&psa->list);
os_free(psa);
}
}
-/**
- * ieee802_1x_kay_create_live_peer
- */
+static void ieee802_1x_kay_dump_peer(struct ieee802_1x_kay_peer *peer)
+{
+ wpa_hexdump(MSG_DEBUG, "\tMI: ", peer->mi, sizeof(peer->mi));
+ wpa_printf(MSG_DEBUG, "\tMN: %d", peer->mn);
+ wpa_hexdump(MSG_DEBUG, "\tSCI Addr: ", peer->sci.addr, ETH_ALEN);
+ wpa_printf(MSG_DEBUG, "\tPort: %d", peer->sci.port);
+}
+
+
static struct ieee802_1x_kay_peer *
-ieee802_1x_kay_create_live_peer(struct ieee802_1x_mka_participant *participant,
- u8 *mi, u32 mn)
+ieee802_1x_kay_create_peer(const u8 *mi, u32 mn)
{
struct ieee802_1x_kay_peer *peer;
- struct receive_sc *rxsc;
- u32 sc_ch = 0;
peer = os_zalloc(sizeof(*peer));
- if (peer == NULL) {
+ if (!peer) {
wpa_printf(MSG_ERROR, "KaY-%s: out of memory", __func__);
return NULL;
}
peer->mn = mn;
peer->expire = time(NULL) + MKA_LIFE_TIME / 1000;
peer->sak_used = FALSE;
+
+ return peer;
+}
+
+
+/**
+ * ieee802_1x_kay_create_live_peer
+ */
+static struct ieee802_1x_kay_peer *
+ieee802_1x_kay_create_live_peer(struct ieee802_1x_mka_participant *participant,
+ const u8 *mi, u32 mn)
+{
+ struct ieee802_1x_kay_peer *peer;
+ struct receive_sc *rxsc;
+ u32 sc_ch = 0;
+
+ peer = ieee802_1x_kay_create_peer(mi, mn);
+ if (!peer)
+ return NULL;
+
os_memcpy(&peer->sci, &participant->current_peer_sci,
sizeof(peer->sci));
secy_create_receive_sc(participant->kay, rxsc);
wpa_printf(MSG_DEBUG, "KaY: Live peer created");
- wpa_hexdump(MSG_DEBUG, "\tMI: ", peer->mi, sizeof(peer->mi));
- wpa_printf(MSG_DEBUG, "\tMN: %d", peer->mn);
- wpa_hexdump(MSG_DEBUG, "\tSCI Addr: ", peer->sci.addr, ETH_ALEN);
- wpa_printf(MSG_DEBUG, "\tPort: %d", peer->sci.port);
+ ieee802_1x_kay_dump_peer(peer);
return peer;
}
{
struct ieee802_1x_kay_peer *peer;
- peer = os_zalloc(sizeof(*peer));
- if (peer == NULL) {
- wpa_printf(MSG_ERROR, "KaY-%s: out of memory", __func__);
+ peer = ieee802_1x_kay_create_peer(mi, mn);
+ if (!peer)
return NULL;
- }
-
- os_memcpy(peer->mi, mi, MI_LEN);
- peer->mn = mn;
- peer->expire = time(NULL) + MKA_LIFE_TIME / 1000;
- peer->sak_used = FALSE;
dl_list_add(&participant->potential_peers, &peer->list);
wpa_printf(MSG_DEBUG, "KaY: potential peer created");
- wpa_hexdump(MSG_DEBUG, "\tMI: ", peer->mi, sizeof(peer->mi));
- wpa_printf(MSG_DEBUG, "\tMN: %d", peer->mn);
- wpa_hexdump(MSG_DEBUG, "\tSCI Addr: ", peer->sci.addr, ETH_ALEN);
- wpa_printf(MSG_DEBUG, "\tPort: %d", peer->sci.port);
+ ieee802_1x_kay_dump_peer(peer);
return peer;
}
struct receive_sc *rxsc;
u32 sc_ch = 0;
- dl_list_for_each(peer, &participant->potential_peers,
- struct ieee802_1x_kay_peer, list) {
- if (os_memcmp(peer->mi, mi, MI_LEN) == 0)
- break;
- }
+ peer = ieee802_1x_kay_get_potential_peer(participant, mi);
rxsc = ieee802_1x_kay_init_receive_sc(&participant->current_peer_sci,
sc_ch);
peer->expire = time(NULL) + MKA_LIFE_TIME / 1000;
wpa_printf(MSG_DEBUG, "KaY: move potential peer to live peer");
- wpa_hexdump(MSG_DEBUG, "\tMI: ", peer->mi, sizeof(peer->mi));
- wpa_printf(MSG_DEBUG, "\tMN: %d", peer->mn);
- wpa_hexdump(MSG_DEBUG, "\tSCI Addr: ", peer->sci.addr, ETH_ALEN);
- wpa_printf(MSG_DEBUG, "\tPort: %d", peer->sci.port);
+ ieee802_1x_kay_dump_peer(peer);
dl_list_del(&peer->list);
dl_list_add_tail(&participant->live_peers, &peer->list);
length = sizeof(struct ieee802_1x_mka_basic_body);
length += participant->ckn.len;
- return (length + 0x3) & ~0x3;
+ return MKA_ALIGN_LENGTH(length);
}
body->key_server = participant->can_be_key_server;
body->macsec_desired = kay->macsec_desired;
- body->macsec_capbility = kay->macsec_capable;
+ body->macsec_capability = kay->macsec_capable;
set_mka_param_body_len(body, length - MKA_HDR_LEN);
os_memcpy(body->actor_sci.addr, kay->actor_sci.addr,
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);
}
+static Boolean
+reset_participant_mi(struct ieee802_1x_mka_participant *participant)
+{
+ if (os_get_random(participant->mi, sizeof(participant->mi)) < 0)
+ return FALSE;
+ participant->mn = 0;
+
+ return TRUE;
+}
+
+
/**
* ieee802_1x_mka_decode_basic_body -
*/
/* If the peer's MI is my MI, I will choose new MI */
if (os_memcmp(body->actor_mi, participant->mi, MI_LEN) == 0) {
- if (os_get_random(participant->mi, sizeof(participant->mi)) < 0)
+ if (!reset_participant_mi(participant))
return NULL;
- participant->mn = 0;
}
os_memcpy(participant->current_peer_id.mi, body->actor_mi, MI_LEN);
return NULL;
peer->macsec_desired = body->macsec_desired;
- peer->macsec_capbility = body->macsec_capbility;
+ peer->macsec_capability = body->macsec_capability;
peer->is_key_server = (Boolean) body->key_server;
peer->key_server_priority = body->priority;
} else if (peer->mn < be_to_host32(body->actor_mn)) {
peer->mn = be_to_host32(body->actor_mn);
peer->expire = time(NULL) + MKA_LIFE_TIME / 1000;
peer->macsec_desired = body->macsec_desired;
- peer->macsec_capbility = body->macsec_capbility;
+ peer->macsec_capability = body->macsec_capability;
peer->is_key_server = (Boolean) body->key_server;
peer->key_server_priority = body->priority;
} else {
struct ieee802_1x_kay_peer, list)
len += sizeof(struct ieee802_1x_mka_peer_id);
- return (len + 0x3) & ~0x3;
+ return MKA_ALIGN_LENGTH(len);
}
sizeof(struct ieee802_1x_mka_peer_id));
os_memcpy(body_peer->mi, peer->mi, MI_LEN);
body_peer->mn = host_to_be32(peer->mn);
- body_peer++;
}
ieee802_1x_mka_dump_peer_body(body);
struct ieee802_1x_kay_peer, list)
len += sizeof(struct ieee802_1x_mka_peer_id);
- return (len + 0x3) & ~0x3;
+ return MKA_ALIGN_LENGTH(len);
}
sizeof(struct ieee802_1x_mka_peer_id));
os_memcpy(body_peer->mi, peer->mi, MI_LEN);
body_peer->mn = host_to_be32(peer->mn);
- body_peer++;
}
ieee802_1x_mka_dump_peer_body(body);
ieee802_1x_mka_i_in_peerlist(struct ieee802_1x_mka_participant *participant,
const u8 *mka_msg, size_t msg_len)
{
- Boolean included = FALSE;
struct ieee802_1x_mka_hdr *hdr;
size_t body_len;
size_t left_len;
u8 body_type;
- u32 peer_mn;
- be32 _peer_mn;
- const u8 *peer_mi;
const u8 *pos;
size_t i;
- pos = mka_msg;
- left_len = msg_len;
- while (left_len > (MKA_HDR_LEN + DEFAULT_ICV_LEN)) {
+ for (pos = mka_msg, left_len = msg_len;
+ left_len > MKA_HDR_LEN + DEFAULT_ICV_LEN;
+ left_len -= body_len + MKA_HDR_LEN,
+ pos += body_len + MKA_HDR_LEN) {
hdr = (struct ieee802_1x_mka_hdr *) pos;
body_len = get_mka_param_body_len(hdr);
body_type = get_mka_param_body_type(hdr);
if (body_type != MKA_LIVE_PEER_LIST &&
body_type != MKA_POTENTIAL_PEER_LIST)
- goto SKIP_PEER;
+ continue;
ieee802_1x_mka_dump_peer_body(
(struct ieee802_1x_mka_peer_body *)pos);
if (left_len < (MKA_HDR_LEN + body_len + DEFAULT_ICV_LEN)) {
wpa_printf(MSG_ERROR,
- "KaY: MKA Peer Packet Body Length (%d bytes) is less than the Parameter Set Header Length (%d bytes) + the Parameter Set Body Length (%d bytes) + %d bytes of ICV",
- (int) left_len, (int) MKA_HDR_LEN,
- (int) body_len, DEFAULT_ICV_LEN);
- goto SKIP_PEER;
+ "KaY: MKA Peer Packet Body Length (%zu bytes) is less than the Parameter Set Header Length (%zu bytes) + the Parameter Set Body Length (%zu bytes) + %d bytes of ICV",
+ left_len, MKA_HDR_LEN,
+ body_len, DEFAULT_ICV_LEN);
+ continue;
}
if ((body_len % 16) != 0) {
wpa_printf(MSG_ERROR,
- "KaY: MKA Peer Packet Body Length (%d bytes) should multiple of 16 octets",
- (int) body_len);
- goto SKIP_PEER;
- }
-
- for (i = 0; i < body_len; i += MI_LEN + sizeof(peer_mn)) {
- peer_mi = MKA_HDR_LEN + pos + i;
- os_memcpy(&_peer_mn, peer_mi + MI_LEN,
- sizeof(_peer_mn));
- peer_mn = be_to_host32(_peer_mn);
- if (os_memcmp(peer_mi, participant->mi, MI_LEN) == 0 &&
- peer_mn == participant->mn) {
- included = TRUE;
- break;
- }
+ "KaY: MKA Peer Packet Body Length (%zu bytes) should be a multiple of 16 octets",
+ body_len);
+ continue;
}
- if (included)
- return TRUE;
+ for (i = 0; i < body_len;
+ i += sizeof(struct ieee802_1x_mka_peer_id)) {
+ const struct ieee802_1x_mka_peer_id *peer_mi;
-SKIP_PEER:
- left_len -= body_len + MKA_HDR_LEN;
- pos += body_len + MKA_HDR_LEN;
+ peer_mi = (const struct ieee802_1x_mka_peer_id *)
+ (pos + MKA_HDR_LEN + i);
+ if (os_memcmp(peer_mi->mi, participant->mi,
+ MI_LEN) == 0 &&
+ be_to_host32(peer_mi->mn) == participant->mn)
+ return TRUE;
+ }
}
return FALSE;
const struct ieee802_1x_mka_hdr *hdr;
struct ieee802_1x_kay_peer *peer;
size_t body_len;
- u32 peer_mn;
- be32 _peer_mn;
- const u8 *peer_mi;
size_t i;
Boolean is_included;
hdr = (const struct ieee802_1x_mka_hdr *) peer_msg;
body_len = get_mka_param_body_len(hdr);
+ if (body_len % 16 != 0) {
+ wpa_printf(MSG_ERROR,
+ "KaY: MKA Peer Packet Body Length (%zu bytes) should be a multiple of 16 octets",
+ body_len);
+ return -1;
+ }
+
+ for (i = 0; i < body_len; i += sizeof(struct ieee802_1x_mka_peer_id)) {
+ const struct ieee802_1x_mka_peer_id *peer_mi;
+ u32 peer_mn;
- for (i = 0; i < body_len; i += MI_LEN + sizeof(peer_mn)) {
- peer_mi = MKA_HDR_LEN + peer_msg + i;
- os_memcpy(&_peer_mn, peer_mi + MI_LEN, sizeof(_peer_mn));
- peer_mn = be_to_host32(_peer_mn);
+ peer_mi = (const struct ieee802_1x_mka_peer_id *)
+ (peer_msg + MKA_HDR_LEN + i);
+ peer_mn = be_to_host32(peer_mi->mn);
/* it is myself */
if (os_memcmp(peer_mi, participant->mi, MI_LEN) == 0) {
/* My message id is used by other participant */
- if (peer_mn > participant->mn) {
- if (os_get_random(participant->mi,
- sizeof(participant->mi)) < 0)
- wpa_printf(MSG_DEBUG,
- "KaY: Could not update mi");
- participant->mn = 0;
- }
+ if (peer_mn > participant->mn &&
+ !reset_participant_mi(participant))
+ wpa_printf(MSG_DEBUG, "KaY: Could not update mi");
continue;
}
+
if (!is_included)
continue;
- peer = ieee802_1x_kay_get_peer(participant, peer_mi);
- if (NULL != peer) {
+ peer = ieee802_1x_kay_get_peer(participant, peer_mi->mi);
+ if (peer) {
peer->mn = peer_mn;
peer->expire = time(NULL) + MKA_LIFE_TIME / 1000;
- } else {
- if (!ieee802_1x_kay_create_potential_peer(
- participant, peer_mi, peer_mn)) {
- return -1;
- }
+ } else if (!ieee802_1x_kay_create_potential_peer(
+ participant, peer_mi->mi, peer_mn)) {
+ return -1;
}
}
struct ieee802_1x_mka_participant *participant,
const u8 *peer_msg, size_t msg_len)
{
- struct ieee802_1x_mka_hdr *hdr;
+ const struct ieee802_1x_mka_hdr *hdr;
size_t body_len;
- u32 peer_mn;
- be32 _peer_mn;
- const u8 *peer_mi;
size_t i;
- hdr = (struct ieee802_1x_mka_hdr *) peer_msg;
+ hdr = (const struct ieee802_1x_mka_hdr *) peer_msg;
body_len = get_mka_param_body_len(hdr);
+ if (body_len % 16 != 0) {
+ wpa_printf(MSG_ERROR,
+ "KaY: MKA Peer Packet Body Length (%zu bytes) should be a multiple of 16 octets",
+ body_len);
+ return -1;
+ }
+
+ for (i = 0; i < body_len; i += sizeof(struct ieee802_1x_mka_peer_id)) {
+ const struct ieee802_1x_mka_peer_id *peer_mi;
+ u32 peer_mn;
- for (i = 0; i < body_len; i += MI_LEN + sizeof(peer_mn)) {
- peer_mi = MKA_HDR_LEN + peer_msg + i;
- os_memcpy(&_peer_mn, peer_mi + MI_LEN, sizeof(_peer_mn));
- peer_mn = be_to_host32(_peer_mn);
+ peer_mi = (struct ieee802_1x_mka_peer_id *)
+ (peer_msg + MKA_HDR_LEN + i);
+ peer_mn = be_to_host32(peer_mi->mn);
/* it is myself */
if (os_memcmp(peer_mi, participant->mi, MI_LEN) == 0) {
/* My message id is used by other participant */
- if (peer_mn > participant->mn) {
- if (os_get_random(participant->mi,
- sizeof(participant->mi)) < 0)
- wpa_printf(MSG_DEBUG,
- "KaY: Could not update mi");
- participant->mn = 0;
- }
+ if (peer_mn > participant->mn &&
+ !reset_participant_mi(participant))
+ wpa_printf(MSG_DEBUG, "KaY: Could not update mi");
continue;
}
}
ieee802_1x_mka_sak_use_body_present(
struct ieee802_1x_mka_participant *participant)
{
- if (participant->to_use_sak)
- return TRUE;
- else
- return FALSE;
+ return participant->to_use_sak;
}
if (participant->kay->macsec_desired && participant->advised_desired)
length = sizeof(struct ieee802_1x_mka_sak_use_body);
- else
- length = MKA_HDR_LEN;
-
- length = (length + 0x3) & ~0x3;
- return length;
+ return MKA_ALIGN_LENGTH(length);
}
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;
struct ieee802_1x_mka_ki ki;
u32 lpn;
Boolean all_receiving;
- Boolean founded;
+ Boolean found;
+ struct ieee802_1x_kay *kay = participant->kay;
if (!participant->principal) {
wpa_printf(MSG_WARNING, "KaY: Participant is not principal");
if ((body_len != 0) && (body_len < 40)) {
wpa_printf(MSG_ERROR,
- "KaY: MKA Use SAK Packet Body Length (%d bytes) should be 0, 40, or more octets",
- (int) body_len);
+ "KaY: MKA Use SAK Packet Body Length (%zu bytes) should be 0, 40, or more octets",
+ body_len);
return -1;
}
/* check latest key is valid */
if (body->ltx || body->lrx) {
- founded = FALSE;
+ found = FALSE;
os_memcpy(ki.mi, body->lsrv_mi, sizeof(ki.mi));
ki.kn = be_to_host32(body->lkn);
dl_list_for_each(sa_key, &participant->sak_list,
struct data_key, list) {
if (is_ki_equal(&sa_key->key_identifier, &ki)) {
- founded = TRUE;
+ found = TRUE;
break;
}
}
- if (!founded) {
+ if (!found) {
wpa_printf(MSG_WARNING, "KaY: Latest key is invalid");
return -1;
}
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");
}
}
- founded = FALSE;
+ found = FALSE;
dl_list_for_each(txsa, &participant->txsc->sa_list,
struct transmit_sa, list) {
if (sa_key != NULL && txsa->pkey == sa_key) {
- founded = TRUE;
+ found = TRUE;
break;
}
}
- if (!founded) {
+ if (!found) {
wpa_printf(MSG_WARNING, "KaY: Can't find txsa");
return -1;
}
/* 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;
}
ieee802_1x_mka_get_dist_sak_length(
struct ieee802_1x_mka_participant *participant)
{
- int length;
- int cs_index = participant->kay->macsec_csindex;
+ int length = MKA_HDR_LEN;
+ unsigned int cs_index = participant->kay->macsec_csindex;
- if (participant->advised_desired) {
+ if (participant->advised_desired && cs_index < CS_TABLE_SIZE) {
length = sizeof(struct ieee802_1x_mka_dist_sak_body);
if (cs_index != DEFAULT_CS_INDEX)
length += CS_ID_LEN;
length += cipher_suite_tbl[cs_index].sak_len + 8;
- } else {
- length = MKA_HDR_LEN;
}
- length = (length + 0x3) & ~0x3;
- return length;
+ return MKA_ALIGN_LENGTH(length);
}
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);
body->kn = host_to_be32(sak->key_identifier.kn);
cs_index = participant->kay->macsec_csindex;
sak_pos = 0;
+ if (cs_index >= CS_TABLE_SIZE)
+ return -1;
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,
/**
* ieee802_1x_kay_init_data_key -
*/
-static struct data_key *
-ieee802_1x_kay_init_data_key(const struct key_conf *conf)
+static void ieee802_1x_kay_init_data_key(struct data_key *pkey)
{
- struct data_key *pkey;
-
- if (!conf)
- return NULL;
-
- pkey = os_zalloc(sizeof(*pkey));
- if (pkey == NULL) {
- wpa_printf(MSG_ERROR, "%s: out of memory", __func__);
- return NULL;
- }
-
- pkey->key = os_zalloc(conf->key_len);
- if (pkey->key == NULL) {
- wpa_printf(MSG_ERROR, "%s: out of memory", __func__);
- os_free(pkey);
- return NULL;
- }
-
- os_memcpy(pkey->key, conf->key, conf->key_len);
- os_memcpy(&pkey->key_identifier, &conf->ki,
- sizeof(pkey->key_identifier));
- pkey->confidentiality_offset = conf->offset;
- pkey->an = conf->an;
- pkey->transmits = conf->tx;
- pkey->receives = conf->rx;
+ pkey->transmits = TRUE;
+ pkey->receives = TRUE;
os_get_time(&pkey->created_time);
pkey->user = 1;
-
- return pkey;
}
struct ieee802_1x_kay_peer *peer;
struct macsec_ciphersuite *cs;
size_t body_len;
- struct key_conf *conf;
struct data_key *sa_key = NULL;
- struct ieee802_1x_mka_ki sak_ki;
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);
if ((body_len != 0) && (body_len != 28) && (body_len < 36)) {
wpa_printf(MSG_ERROR,
- "KaY: MKA Use SAK Packet Body Length (%d bytes) should be 0, 28, 36, or more octets",
- (int) body_len);
+ "KaY: MKA Use SAK Packet Body Length (%zu bytes) should be 0, 28, 36, or more octets",
+ body_len);
return -1;
}
"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 (os_memcmp(&participant->kay->key_server_sci,
- &peer->sci, sizeof(struct ieee802_1x_mka_sci)) != 0) {
+ 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;
+ cs = &cipher_suite_tbl[kay->macsec_csindex];
} 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);
}
wpa_hexdump(MSG_DEBUG, "\tAES Key Unwrap of SAK:", unwrap_sak, sak_len);
- conf = os_zalloc(sizeof(*conf));
- if (!conf) {
- wpa_printf(MSG_ERROR, "KaY-%s: Out of memory", __func__);
- os_free(unwrap_sak);
- return -1;
- }
- conf->key_len = sak_len;
-
- conf->key = os_zalloc(conf->key_len);
- if (!conf->key) {
- wpa_printf(MSG_ERROR, "KaY-%s: Out of memory", __func__);
+ sa_key = os_zalloc(sizeof(*sa_key));
+ if (!sa_key) {
os_free(unwrap_sak);
- os_free(conf);
return -1;
}
- os_memcpy(conf->key, unwrap_sak, conf->key_len);
+ os_memcpy(&sa_key->key_identifier.mi, &participant->current_peer_id.mi,
+ MI_LEN);
+ sa_key->key_identifier.kn = be_to_host32(body->kn);
- os_memcpy(&sak_ki.mi, &participant->current_peer_id.mi,
- sizeof(sak_ki.mi));
- sak_ki.kn = be_to_host32(body->kn);
+ sa_key->key = unwrap_sak;
+ sa_key->key_len = sak_len;
- os_memcpy(conf->ki.mi, sak_ki.mi, MI_LEN);
- conf->ki.kn = sak_ki.kn;
- conf->an = body->dan;
- conf->offset = body->confid_offset;
- conf->rx = TRUE;
- conf->tx = TRUE;
-
- sa_key = ieee802_1x_kay_init_data_key(conf);
- if (!sa_key) {
- os_free(unwrap_sak);
- os_free(conf->key);
- os_free(conf);
- return -1;
- }
+ sa_key->confidentiality_offset = body->confid_offset;
+ sa_key->an = body->dan;
+ ieee802_1x_kay_init_data_key(sa_key);
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, cs->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, &sa_key->key_identifier);
+ 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;
- os_free(unwrap_sak);
- os_free(conf->key);
- os_free(conf);
-
return 0;
}
length = sizeof(struct ieee802_1x_mka_icv_body);
length += mka_alg_tbl[participant->kay->mka_algindex].icv_len;
- return (length + 0x3) & ~0x3;
+ return MKA_ALIGN_LENGTH(length);
}
return -1;
}
- if (length != DEFAULT_ICV_LEN) {
- os_memcpy(wpabuf_put(buf, length - MKA_HDR_LEN), cmac,
- length - MKA_HDR_LEN);
- } else {
- os_memcpy(wpabuf_put(buf, length), cmac, length);
- }
+ if (length != DEFAULT_ICV_LEN)
+ length -= MKA_HDR_LEN;
+ os_memcpy(wpabuf_put(buf, length), cmac, length);
return 0;
}
body_len = get_mka_param_body_len(hdr);
if (body_len < 28) {
wpa_printf(MSG_ERROR,
- "KaY: MKA Use SAK Packet Body Length (%d bytes) should be 28 or more octets",
- (int) body_len);
+ "KaY: MKA Use SAK Packet Body Length (%zu bytes) should be 28 or more octets",
+ body_len);
return -1;
}
body_len = get_mka_param_body_len(hdr);
if (body_len < 5) {
wpa_printf(MSG_ERROR,
- "KaY: MKA Use SAK Packet Body Length (%d bytes) should be 5 or more octets",
- (int) body_len);
+ "KaY: MKA Use SAK Packet Body Length (%zu bytes) should be 5 or more octets",
+ body_len);
return -1;
}
}
-static struct mka_param_body_handler mak_body_handler[] = {
+struct mka_param_body_handler {
+ int (*body_tx)(struct ieee802_1x_mka_participant *participant,
+ struct wpabuf *buf);
+ int (*body_rx)(struct ieee802_1x_mka_participant *participant,
+ const u8 *mka_msg, size_t msg_len);
+ int (*body_length)(struct ieee802_1x_mka_participant *participant);
+ Boolean (*body_present)(struct ieee802_1x_mka_participant *participant);
+};
+
+
+static struct mka_param_body_handler mka_body_handler[] = {
/* basic parameter set */
{
- ieee802_1x_mka_encode_basic_body,
- NULL,
- ieee802_1x_mka_basic_body_length,
- ieee802_1x_mka_basic_body_present
+ .body_tx = ieee802_1x_mka_encode_basic_body,
+ .body_rx = NULL,
+ .body_length = ieee802_1x_mka_basic_body_length,
+ .body_present = ieee802_1x_mka_basic_body_present
},
/* live peer list parameter set */
{
- ieee802_1x_mka_encode_live_peer_body,
- ieee802_1x_mka_decode_live_peer_body,
- ieee802_1x_mka_get_live_peer_length,
- ieee802_1x_mka_live_peer_body_present
+ .body_tx = ieee802_1x_mka_encode_live_peer_body,
+ .body_rx = ieee802_1x_mka_decode_live_peer_body,
+ .body_length = ieee802_1x_mka_get_live_peer_length,
+ .body_present = ieee802_1x_mka_live_peer_body_present
},
/* potential peer list parameter set */
{
- ieee802_1x_mka_encode_potential_peer_body,
- ieee802_1x_mka_decode_potential_peer_body,
- ieee802_1x_mka_get_potential_peer_length,
- ieee802_1x_mka_potential_peer_body_present
+ .body_tx = ieee802_1x_mka_encode_potential_peer_body,
+ .body_rx = ieee802_1x_mka_decode_potential_peer_body,
+ .body_length = ieee802_1x_mka_get_potential_peer_length,
+ .body_present = ieee802_1x_mka_potential_peer_body_present
},
/* sak use parameter set */
{
- ieee802_1x_mka_encode_sak_use_body,
- ieee802_1x_mka_decode_sak_use_body,
- ieee802_1x_mka_get_sak_use_length,
- ieee802_1x_mka_sak_use_body_present
+ .body_tx = ieee802_1x_mka_encode_sak_use_body,
+ .body_rx = ieee802_1x_mka_decode_sak_use_body,
+ .body_length = ieee802_1x_mka_get_sak_use_length,
+ .body_present = ieee802_1x_mka_sak_use_body_present
},
/* distribute sak parameter set */
{
- ieee802_1x_mka_encode_dist_sak_body,
- ieee802_1x_mka_decode_dist_sak_body,
- ieee802_1x_mka_get_dist_sak_length,
- ieee802_1x_mka_dist_sak_body_present
+ .body_tx = ieee802_1x_mka_encode_dist_sak_body,
+ .body_rx = ieee802_1x_mka_decode_dist_sak_body,
+ .body_length = ieee802_1x_mka_get_dist_sak_length,
+ .body_present = ieee802_1x_mka_dist_sak_body_present
},
/* distribute cak parameter set */
{
- NULL,
- ieee802_1x_mka_decode_dist_cak_body,
- NULL,
- NULL
+ .body_tx = NULL,
+ .body_rx = ieee802_1x_mka_decode_dist_cak_body,
+ .body_length = NULL,
+ .body_present = NULL
},
/* kmd parameter set */
{
- NULL,
- ieee802_1x_mka_decode_kmd_body,
- NULL,
- NULL
+ .body_tx = NULL,
+ .body_rx = ieee802_1x_mka_decode_kmd_body,
+ .body_length = NULL,
+ .body_present = NULL
},
/* announce parameter set */
{
- NULL,
- ieee802_1x_mka_decode_announce_body,
- NULL,
- NULL
+ .body_tx = NULL,
+ .body_rx = ieee802_1x_mka_decode_announce_body,
+ .body_length = NULL,
+ .body_present = NULL
},
/* icv parameter set */
{
- ieee802_1x_mka_encode_icv_body,
- NULL,
- ieee802_1x_mka_get_icv_length,
- ieee802_1x_mka_icv_body_present
+ .body_tx = ieee802_1x_mka_encode_icv_body,
+ .body_rx = NULL,
+ .body_length = ieee802_1x_mka_get_icv_length,
+ .body_present = ieee802_1x_mka_icv_body_present
},
};
ieee802_1x_kay_generate_new_sak(struct ieee802_1x_mka_participant *participant)
{
struct data_key *sa_key = NULL;
- struct key_conf *conf;
struct ieee802_1x_kay_peer *peer;
struct ieee802_1x_kay *kay = participant->kay;
int ctx_len, ctx_offset;
u8 *context;
+ unsigned int key_len;
+ u8 *key;
+ struct macsec_ciphersuite *cs;
/* check condition for generating a fresh SAK:
* must have one live peer
return -1;
}
- conf = os_zalloc(sizeof(*conf));
- if (!conf) {
- wpa_printf(MSG_ERROR, "KaY-%s: Out of memory", __func__);
- return -1;
- }
- conf->key_len = cipher_suite_tbl[kay->macsec_csindex].sak_len;
-
- conf->key = os_zalloc(conf->key_len);
- if (!conf->key) {
- os_free(conf);
+ cs = &cipher_suite_tbl[kay->macsec_csindex];
+ key_len = cs->sak_len;
+ key = os_zalloc(key_len);
+ if (!key) {
wpa_printf(MSG_ERROR, "KaY-%s: Out of memory", __func__);
return -1;
}
- ctx_len = conf->key_len + sizeof(kay->dist_kn);
+ ctx_len = key_len + sizeof(kay->dist_kn);
dl_list_for_each(peer, &participant->live_peers,
struct ieee802_1x_kay_peer, list)
ctx_len += sizeof(peer->mi);
ctx_len += sizeof(participant->mi);
context = os_zalloc(ctx_len);
- if (!context) {
- os_free(conf->key);
- os_free(conf);
- return -1;
- }
+ if (!context)
+ goto fail;
+
ctx_offset = 0;
- if (os_get_random(context + ctx_offset, conf->key_len) < 0) {
- os_free(context);
- os_free(conf->key);
- os_free(conf);
- return -1;
- }
- ctx_offset += conf->key_len;
+ if (os_get_random(context + ctx_offset, key_len) < 0)
+ goto fail;
+
+ ctx_offset += key_len;
dl_list_for_each(peer, &participant->live_peers,
struct ieee802_1x_kay_peer, list) {
os_memcpy(context + ctx_offset, peer->mi, sizeof(peer->mi));
ctx_offset += sizeof(participant->mi);
os_memcpy(context + ctx_offset, &kay->dist_kn, sizeof(kay->dist_kn));
- if (conf->key_len == 16) {
+ if (key_len == 16) {
ieee802_1x_sak_128bits_aes_cmac(participant->cak.key,
- context, ctx_len, conf->key);
- } else if (conf->key_len == 32) {
+ context, ctx_len, key);
+ } else if (key_len == 32) {
ieee802_1x_sak_128bits_aes_cmac(participant->cak.key,
- context, ctx_len, conf->key);
+ context, ctx_len, key);
} else {
wpa_printf(MSG_ERROR, "KaY: SAK Length not support");
- os_free(conf->key);
- os_free(conf);
- os_free(context);
- return -1;
+ goto fail;
}
- wpa_hexdump(MSG_DEBUG, "KaY: generated new SAK",
- 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->offset = kay->macsec_confidentiality;
- conf->rx = TRUE;
- conf->tx = TRUE;
+ wpa_hexdump(MSG_DEBUG, "KaY: generated new SAK", key, key_len);
+ os_free(context);
+ context = NULL;
- sa_key = ieee802_1x_kay_init_data_key(conf);
+ sa_key = os_zalloc(sizeof(*sa_key));
if (!sa_key) {
- os_free(conf->key);
- os_free(conf);
- os_free(context);
- return -1;
+ wpa_printf(MSG_ERROR, "KaY-%s: Out of memory", __func__);
+ goto fail;
}
+
+ sa_key->key = key;
+ sa_key->key_len = key_len;
+ os_memcpy(sa_key->key_identifier.mi, participant->mi, MI_LEN);
+ sa_key->key_identifier.kn = kay->dist_kn;
+
+ sa_key->confidentiality_offset = kay->macsec_confidentiality;
+ sa_key->an = kay->dist_an;
+ ieee802_1x_kay_init_data_key(sa_key);
+
participant->new_key = sa_key;
dl_list_add(&participant->sak_list, &sa_key->list);
- ieee802_1x_cp_set_ciphersuite(participant->kay->cp,
- cipher_suite_tbl[kay->macsec_csindex].id);
+ ieee802_1x_cp_set_ciphersuite(kay->cp, cs->id);
ieee802_1x_cp_sm_step(kay->cp);
- ieee802_1x_cp_set_offset(kay->cp, conf->offset);
+ ieee802_1x_cp_set_offset(kay->cp, kay->macsec_confidentiality);
ieee802_1x_cp_sm_step(kay->cp);
- ieee802_1x_cp_set_distributedki(kay->cp, &conf->ki);
- ieee802_1x_cp_set_distributedan(kay->cp, conf->an);
+ ieee802_1x_cp_set_distributedki(kay->cp, &sa_key->key_identifier);
+ ieee802_1x_cp_set_distributedan(kay->cp, sa_key->an);
ieee802_1x_cp_signal_newsak(kay->cp);
ieee802_1x_cp_sm_step(kay->cp);
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);
- os_free(context);
return 0;
+
+fail:
+ os_free(key);
+ os_free(context);
+ return -1;
+}
+
+
+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);
}
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;
}
if (i_is_key_server) {
ieee802_1x_cp_set_electedself(kay->cp, TRUE);
- if (os_memcmp(&kay->key_server_sci, &kay->actor_sci,
- sizeof(kay->key_server_sci))) {
+ if (!sci_equal(&kay->key_server_sci, &kay->actor_sci)) {
ieee802_1x_cp_signal_chgdserver(kay->cp);
ieee802_1x_cp_sm_step(kay->cp);
}
kay->key_server_priority = kay->actor_priority;
} else if (key_server) {
ieee802_1x_cp_set_electedself(kay->cp, FALSE);
- if (os_memcmp(&kay->key_server_sci, &key_server->sci,
- sizeof(kay->key_server_sci))) {
+ if (!sci_equal(&kay->key_server_sci, &key_server->sci)) {
ieee802_1x_cp_signal_chgdserver(kay->cp);
ieee802_1x_cp_sm_step(kay->cp);
}
if (!peer->macsec_desired)
continue;
- if (peer->macsec_capbility == MACSEC_CAP_NOT_IMPLEMENTED)
+ if (peer->macsec_capability == MACSEC_CAP_NOT_IMPLEMENTED)
continue;
- less_capability = (less_capability < peer->macsec_capbility) ?
- less_capability : peer->macsec_capbility;
+ less_capability = (less_capability < peer->macsec_capability) ?
+ less_capability : peer->macsec_capability;
has_peer = TRUE;
}
eapol_hdr->type = IEEE802_1X_TYPE_EAPOL_MKA;
eapol_hdr->length = host_to_be16(pbuf->size - pbuf->used);
- for (i = 0; i < ARRAY_SIZE(mak_body_handler); i++) {
- if (mak_body_handler[i].body_present &&
- mak_body_handler[i].body_present(participant)) {
- if (mak_body_handler[i].body_tx(participant, pbuf))
+ for (i = 0; i < ARRAY_SIZE(mka_body_handler); i++) {
+ if (mka_body_handler[i].body_present &&
+ mka_body_handler[i].body_present(participant)) {
+ if (mka_body_handler[i].body_tx(participant, pbuf))
return -1;
}
}
wpa_printf(MSG_DEBUG, "KaY: to enpacket and send the MKPDU");
length += sizeof(struct ieee802_1x_hdr) + sizeof(struct ieee8023_hdr);
- for (i = 0; i < ARRAY_SIZE(mak_body_handler); i++) {
- if (mak_body_handler[i].body_present &&
- mak_body_handler[i].body_present(participant))
- length += mak_body_handler[i].body_length(participant);
+ for (i = 0; i < ARRAY_SIZE(mka_body_handler); i++) {
+ if (mka_body_handler[i].body_present &&
+ mka_body_handler[i].body_present(participant))
+ length += mka_body_handler[i].body_length(participant);
}
buf = wpabuf_alloc(length);
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;
}
dl_list_for_each_safe(rxsc, pre_rxsc,
&participant->rxsc_list,
struct receive_sc, list) {
- if (os_memcmp(&rxsc->sci, &peer->sci,
- sizeof(rxsc->sci)) == 0) {
+ if (sci_equal(&rxsc->sci, &peer->sci)) {
secy_delete_receive_sc(kay, rxsc);
ieee802_1x_kay_deinit_receive_sc(
participant, rxsc);
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);
}
dl_list_add(&psc->sa_list, &psa->list);
wpa_printf(MSG_DEBUG,
- "KaY: Create transmit SA(an: %d, next_PN: %u) of SC(channel: %d)",
- (int) an, next_PN, psc->channel);
+ "KaY: Create transmit SA(an: %hhu, next_PN: %u) of SC(channel: %d)",
+ an, next_PN, psc->channel);
return psa;
}
{
psa->pkey = NULL;
wpa_printf(MSG_DEBUG,
- "KaY: Delete transmit SA(an: %d) of SC(channel: %d)",
- psa->an, psa->sc->channel);
+ "KaY: Delete transmit SA(an: %hhu) of SC",
+ psa->an);
dl_list_del(&psa->list);
os_free(psa);
}
}
-/**
- * ieee802_1x_kay_cp_conf -
- */
-int ieee802_1x_kay_cp_conf(struct ieee802_1x_kay *kay,
- struct ieee802_1x_cp_conf *pconf)
-{
- pconf->protect = kay->macsec_protect;
- pconf->replay_protect = kay->macsec_replay_protect;
- pconf->validate = kay->macsec_validate;
-
- return 0;
-}
-
-
-/**
- * ieee802_1x_kay_alloc_cp_sm -
- */
-static struct ieee802_1x_cp_sm *
-ieee802_1x_kay_alloc_cp_sm(struct ieee802_1x_kay *kay)
-{
- struct ieee802_1x_cp_conf conf;
-
- os_memset(&conf, 0, sizeof(conf));
- conf.protect = kay->macsec_protect;
- conf.replay_protect = kay->macsec_replay_protect;
- conf.validate = kay->macsec_validate;
- conf.replay_window = kay->macsec_replay_window;
-
- return ieee802_1x_cp_sm_init(kay, &conf);
-}
-
-
/**
* ieee802_1x_kay_mkpdu_sanity_check -
* sanity check specified in clause 11.11.2 of IEEE802.1X-2010
return -1;
}
- /* MKPDU should not less than 32 octets */
+ /* MKPDU should not be less than 32 octets */
mka_msg_len = be_to_host16(eapol_hdr->length);
if (mka_msg_len < 32) {
wpa_printf(MSG_MSGDUMP, "KaY: MKPDU is less than 32 octets");
return -1;
}
- /* MKPDU should multiple 4 octets */
+ /* MKPDU should be a multiple of 4 octets */
if ((mka_msg_len % 4) != 0) {
wpa_printf(MSG_MSGDUMP,
"KaY: MKPDU is not multiple of 4 octets");
/* EAPOL-MKA body should comprise basic parameter set and ICV */
if (mka_msg_len < MKA_HDR_LEN + body_len + DEFAULT_ICV_LEN) {
wpa_printf(MSG_ERROR,
- "KaY: Received EAPOL-MKA Packet Body Length (%d bytes) is less than the Basic Parameter Set Header Length (%d bytes) + the Basic Parameter Set Body Length (%d bytes) + %d bytes of ICV",
- (int) mka_msg_len, (int) MKA_HDR_LEN,
- (int) body_len, DEFAULT_ICV_LEN);
+ "KaY: Received EAPOL-MKA Packet Body Length (%zu bytes) is less than the Basic Parameter Set Header Length (%zu bytes) + the Basic Parameter Set Body Length (%zu bytes) + %d bytes of ICV",
+ mka_msg_len, MKA_HDR_LEN,
+ body_len, DEFAULT_ICV_LEN);
return -1;
}
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);
}
/*
handled[i] = FALSE;
handled[0] = TRUE;
- while (left_len > MKA_HDR_LEN + DEFAULT_ICV_LEN) {
+ for (; left_len > MKA_HDR_LEN + DEFAULT_ICV_LEN;
+ pos += body_len + MKA_HDR_LEN,
+ left_len -= body_len + MKA_HDR_LEN) {
hdr = (struct ieee802_1x_mka_hdr *) pos;
body_len = get_mka_param_body_len(hdr);
body_type = get_mka_param_body_type(hdr);
if (left_len < (MKA_HDR_LEN + body_len + DEFAULT_ICV_LEN)) {
wpa_printf(MSG_ERROR,
- "KaY: MKA Peer Packet Body Length (%d bytes) is less than the Parameter Set Header Length (%d bytes) + the Parameter Set Body Length (%d bytes) + %d bytes of ICV",
- (int) left_len, (int) MKA_HDR_LEN,
- (int) body_len, DEFAULT_ICV_LEN);
- goto next_para_set;
+ "KaY: MKA Peer Packet Body Length (%zu bytes) is less than the Parameter Set Header Length (%zu bytes) + the Parameter Set Body Length (%zu bytes) + %d bytes of ICV",
+ left_len, MKA_HDR_LEN,
+ body_len, DEFAULT_ICV_LEN);
+ continue;
}
if (handled[body_type])
- goto next_para_set;
+ continue;
handled[body_type] = TRUE;
- if (mak_body_handler[body_type].body_rx) {
- mak_body_handler[body_type].body_rx
+ if (body_type < ARRAY_SIZE(mka_body_handler) &&
+ mka_body_handler[body_type].body_rx) {
+ mka_body_handler[body_type].body_rx
(participant, pos, left_len);
} else {
wpa_printf(MSG_ERROR,
- "The type %d not supported in this MKA version %d",
+ "The type %d is not supported in this MKA version %d",
body_type, MKA_VERSION_ID);
}
-
-next_para_set:
- pos += body_len + MKA_HDR_LEN;
- left_len -= body_len + MKA_HDR_LEN;
}
kay->active = TRUE;
kay->macsec_replay_window = 0;
kay->macsec_confidentiality = CONFIDENTIALITY_NONE;
} else {
- kay->macsec_capable = MACSEC_CAP_INTEG_AND_CONF_0_30_50;
+ if (secy_get_capability(kay, &kay->macsec_capable) < 0) {
+ os_free(kay);
+ return NULL;
+ }
+
kay->macsec_desired = TRUE;
kay->macsec_protect = TRUE;
kay->macsec_validate = Strict;
kay->macsec_replay_protect = FALSE;
kay->macsec_replay_window = 0;
- kay->macsec_confidentiality = CONFIDENTIALITY_OFFSET_0;
+ if (kay->macsec_capable >= MACSEC_CAP_INTEG_AND_CONF)
+ kay->macsec_confidentiality = CONFIDENTIALITY_OFFSET_0;
+ else
+ kay->macsec_confidentiality = MACSEC_CAP_INTEGRITY;
}
wpa_printf(MSG_DEBUG, "KaY: state machine created");
wpa_printf(MSG_DEBUG, "KaY: secy init macsec done");
/* init CP */
- kay->cp = ieee802_1x_kay_alloc_cp_sm(kay);
+ kay->cp = ieee802_1x_cp_sm_init(kay);
if (kay->cp == NULL) {
ieee802_1x_kay_deinit(kay);
return NULL;
participant->retry_count = 0;
participant->kay = kay;
- if (os_get_random(participant->mi, sizeof(participant->mi)) < 0)
+ if (!reset_participant_mi(participant))
goto fail;
- participant->mn = 0;
participant->lrx = FALSE;
participant->ltx = FALSE;
return;
}
+ eloop_cancel_timeout(ieee802_1x_participant_timer, participant, NULL);
dl_list_del(&participant->list);
/* remove live peer */
* 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;
+ enum macsec_cap secy_cap;
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;
kay->macsec_csindex = cs_index;
kay->macsec_capable = cipher_suite_tbl[kay->macsec_csindex].capable;
+ if (secy_get_capability(kay, &secy_cap) < 0)
+ return -3;
+
+ if (kay->macsec_capable > secy_cap)
+ kay->macsec_capable = secy_cap;
+
participant = ieee802_1x_kay_get_principal_participant(kay);
if (participant) {
wpa_printf(MSG_INFO, "KaY: Cipher Suite changed");