void wpa_pmk_to_ptk(u8 * pmk, u8 * addr1, u8 * addr2,
u8 * nonce1, u8 * nonce2, u8 * ptk, size_t ptk_len)
{
u8 data[2 * ETH_ALEN + 2 * 32];
memset(&data, 0, sizeof(data));
/* PTK = PRF-X(PMK, "Pairwise key expansion",
* Min(AA, SA) || Max(AA, SA) ||
* Min(ANonce, SNonce) || Max(ANonce, SNonce)) */
if (memcmp(addr1, addr2, ETH_ALEN) < 0) {
memcpy(data, addr1, ETH_ALEN);
memcpy(data + ETH_ALEN, addr2, ETH_ALEN);
} else {
memcpy(data, addr2, ETH_ALEN);
memcpy(data + ETH_ALEN, addr1, ETH_ALEN);
}
if (memcmp(nonce1, nonce2, 32) < 0) {
memcpy(data + 2 * ETH_ALEN, nonce1, 32);
memcpy(data + 2 * ETH_ALEN + 32, nonce2, 32);
} else {
memcpy(data + 2 * ETH_ALEN, nonce2, 32);
memcpy(data + 2 * ETH_ALEN + 32, nonce1, 32);
}
sha1_prf(pmk, 32, "Pairwise key expansion", data, sizeof(data),
ptk, ptk_len);
}
static void * wpa_driver_test_init(void *ctx, const char *ifname)
{
struct wpa_driver_test_data *drv;
drv = malloc(sizeof(*drv));
if (drv == NULL)
return NULL;
memset(drv, 0, sizeof(*drv));
drv->ctx = ctx;
drv->test_socket = -1;
/* Set dummy BSSID and SSID for testing. */
drv->bssid[0] = 0x02;
drv->bssid[1] = 0x00;
drv->bssid[2] = 0x00;
drv->bssid[3] = 0x00;
drv->bssid[4] = 0x00;
drv->bssid[5] = 0x01;
memcpy(drv->ssid, "test", 5);
drv->ssid_len = 4;
/* Generate a MAC address to help testing with multiple STAs */
drv->own_addr[0] = 0x02; /* locally administered */
sha1_prf(ifname, strlen(ifname),
"wpa_supplicant test mac addr generation",
NULL, 0, drv->own_addr + 1, ETH_ALEN - 1);
return drv;
}
/**
* wpa_pmk_to_ptk - Calculate PTK from PMK, addresses, and nonces
* @pmk: Pairwise master key
* @pmk_len: Length of PMK
* @label: Label to use in derivation
* @addr1: AA or SA
* @addr2: SA or AA
* @nonce1: ANonce or SNonce
* @nonce2: SNonce or ANonce
* @ptk: Buffer for pairwise transient key
* @ptk_len: Length of PTK
*
* IEEE Std 802.11i-2004 - 8.5.1.2 Pairwise key hierarchy
* PTK = PRF-X(PMK, "Pairwise key expansion",
* Min(AA, SA) || Max(AA, SA) ||
* Min(ANonce, SNonce) || Max(ANonce, SNonce))
*
* STK = PRF-X(SMK, "Peer key expansion",
* Min(MAC_I, MAC_P) || Max(MAC_I, MAC_P) ||
* Min(INonce, PNonce) || Max(INonce, PNonce))
*/
void wpa_pmk_to_ptk(const u8 *pmk, size_t pmk_len,
const u8 *addr1, const u8 *addr2,
const u8 *nonce1, const u8 *nonce2,
u8 *ptk, size_t ptk_len)
{
u8 data[2 * ETH_ALEN + 2 * 32];
if (os_memcmp(addr1, addr2, ETH_ALEN) < 0) {
os_memcpy(data, addr1, ETH_ALEN);
os_memcpy(data + ETH_ALEN, addr2, ETH_ALEN);
} else {
os_memcpy(data, addr2, ETH_ALEN);
os_memcpy(data + ETH_ALEN, addr1, ETH_ALEN);
}
if (os_memcmp(nonce1, nonce2, 32) < 0) {
os_memcpy(data + 2 * ETH_ALEN, nonce1, 32);
os_memcpy(data + 2 * ETH_ALEN + 32, nonce2, 32);
} else {
os_memcpy(data + 2 * ETH_ALEN, nonce2, 32);
os_memcpy(data + 2 * ETH_ALEN + 32, nonce1, 32);
}
sha1_prf(pmk, pmk_len, "Pairwise key expansion", data, sizeof(data),
ptk, ptk_len);
wpa_hexdump_key(MSG_DEBUG, "WPA: PMK", pmk, pmk_len);
wpa_hexdump_key(MSG_DEBUG, "WPA: PTK", ptk, ptk_len);
}
/**
* wpa_pmk_to_ptk - Calculate PTK from PMK, addresses, and nonces
* @pmk: Pairwise master key
* @pmk_len: Length of PMK
* @label: Label to use in derivation
* @addr1: AA or SA
* @addr2: SA or AA
* @nonce1: ANonce or SNonce
* @nonce2: SNonce or ANonce
* @ptk: Buffer for pairwise transient key
* @ptk_len: Length of PTK
*
* IEEE Std 802.11i-2004 - 8.5.1.2 Pairwise key hierarchy
* PTK = PRF-X(PMK, "Pairwise key expansion",
* Min(AA, SA) || Max(AA, SA) ||
* Min(ANonce, SNonce) || Max(ANonce, SNonce))
*
* STK = PRF-X(SMK, "Peer key expansion",
* Min(MAC_I, MAC_P) || Max(MAC_I, MAC_P) ||
* Min(INonce, PNonce) || Max(INonce, PNonce))
*/
void wpa_pmk_to_ptk(const u8 *pmk, size_t pmk_len, const char *label,
const u8 *addr1, const u8 *addr2,
const u8 *nonce1, const u8 *nonce2,
u8 *ptk, size_t ptk_len)
{
u8 data[2 * ETH_ALEN + 2 * WPA_NONCE_LEN];
if (os_memcmp(addr1, addr2, ETH_ALEN) < 0) {
os_memcpy(data, addr1, ETH_ALEN);
os_memcpy(data + ETH_ALEN, addr2, ETH_ALEN);
} else {
os_memcpy(data, addr2, ETH_ALEN);
os_memcpy(data + ETH_ALEN, addr1, ETH_ALEN);
}
if (os_memcmp(nonce1, nonce2, WPA_NONCE_LEN) < 0) {
os_memcpy(data + 2 * ETH_ALEN, nonce1, WPA_NONCE_LEN);
os_memcpy(data + 2 * ETH_ALEN + WPA_NONCE_LEN, nonce2,
WPA_NONCE_LEN);
} else {
os_memcpy(data + 2 * ETH_ALEN, nonce2, WPA_NONCE_LEN);
os_memcpy(data + 2 * ETH_ALEN + WPA_NONCE_LEN, nonce1,
WPA_NONCE_LEN);
}
sha1_prf(pmk, pmk_len, label, data, sizeof(data), ptk, ptk_len);
wpa_printf(MSG_DEBUG, "WPA: PTK derivation - A1=" MACSTR " A2=" MACSTR,
MAC2STR(addr1), MAC2STR(addr2));
wpa_hexdump_key(MSG_DEBUG, "WPA: PMK", pmk, pmk_len);
wpa_hexdump_key(MSG_DEBUG, "WPA: PTK", ptk, ptk_len);
}
/**
* wpa_pmk_to_ptk - Calculate PTK from PMK, addresses, and nonces
* @pmk: Pairwise master key
* @pmk_len: Length of PMK
* @label: Label to use in derivation
* @addr1: AA or SA
* @addr2: SA or AA
* @nonce1: ANonce or SNonce
* @nonce2: SNonce or ANonce
* @ptk: Buffer for pairwise transient key
* @akmp: Negotiated AKM
* @cipher: Negotiated pairwise cipher
* Returns: 0 on success, -1 on failure
*
* IEEE Std 802.11i-2004 - 8.5.1.2 Pairwise key hierarchy
* PTK = PRF-X(PMK, "Pairwise key expansion",
* Min(AA, SA) || Max(AA, SA) ||
* Min(ANonce, SNonce) || Max(ANonce, SNonce))
*
* STK = PRF-X(SMK, "Peer key expansion",
* Min(MAC_I, MAC_P) || Max(MAC_I, MAC_P) ||
* Min(INonce, PNonce) || Max(INonce, PNonce))
*/
int wpa_pmk_to_ptk(const u8 *pmk, size_t pmk_len, const char *label,
const u8 *addr1, const u8 *addr2,
const u8 *nonce1, const u8 *nonce2,
struct wpa_ptk *ptk, int akmp, int cipher)
{
u8 data[2 * ETH_ALEN + 2 * WPA_NONCE_LEN];
u8 tmp[WPA_KCK_MAX_LEN + WPA_KEK_MAX_LEN + WPA_TK_MAX_LEN];
size_t ptk_len;
if (os_memcmp(addr1, addr2, ETH_ALEN) < 0) {
os_memcpy(data, addr1, ETH_ALEN);
os_memcpy(data + ETH_ALEN, addr2, ETH_ALEN);
} else {
os_memcpy(data, addr2, ETH_ALEN);
os_memcpy(data + ETH_ALEN, addr1, ETH_ALEN);
}
if (os_memcmp(nonce1, nonce2, WPA_NONCE_LEN) < 0) {
os_memcpy(data + 2 * ETH_ALEN, nonce1, WPA_NONCE_LEN);
os_memcpy(data + 2 * ETH_ALEN + WPA_NONCE_LEN, nonce2,
WPA_NONCE_LEN);
} else {
os_memcpy(data + 2 * ETH_ALEN, nonce2, WPA_NONCE_LEN);
os_memcpy(data + 2 * ETH_ALEN + WPA_NONCE_LEN, nonce1,
WPA_NONCE_LEN);
}
ptk->kck_len = wpa_kck_len(akmp);
ptk->kek_len = wpa_kek_len(akmp);
ptk->tk_len = wpa_cipher_key_len(cipher);
ptk_len = ptk->kck_len + ptk->kek_len + ptk->tk_len;
#ifdef CONFIG_IEEE80211W
if (wpa_key_mgmt_sha256(akmp))
sha256_prf(pmk, pmk_len, label, data, sizeof(data),
tmp, ptk_len);
else
#endif /* CONFIG_IEEE80211W */
sha1_prf(pmk, pmk_len, label, data, sizeof(data), tmp, ptk_len);
wpa_printf(MSG_DEBUG, "WPA: PTK derivation - A1=" MACSTR " A2=" MACSTR,
MAC2STR(addr1), MAC2STR(addr2));
wpa_hexdump(MSG_DEBUG, "WPA: Nonce1", nonce1, WPA_NONCE_LEN);
wpa_hexdump(MSG_DEBUG, "WPA: Nonce2", nonce2, WPA_NONCE_LEN);
wpa_hexdump_key(MSG_DEBUG, "WPA: PMK", pmk, pmk_len);
wpa_hexdump_key(MSG_DEBUG, "WPA: PTK", tmp, ptk_len);
os_memcpy(ptk->kck, tmp, ptk->kck_len);
wpa_hexdump_key(MSG_DEBUG, "WPA: KCK", ptk->kck, ptk->kck_len);
os_memcpy(ptk->kek, tmp + ptk->kck_len, ptk->kek_len);
wpa_hexdump_key(MSG_DEBUG, "WPA: KEK", ptk->kek, ptk->kek_len);
os_memcpy(ptk->tk, tmp + ptk->kck_len + ptk->kek_len, ptk->tk_len);
wpa_hexdump_key(MSG_DEBUG, "WPA: TK", ptk->tk, ptk->tk_len);
os_memset(tmp, 0, sizeof(tmp));
return 0;
}
/**
* wpa_btk_to_ptk - Calculate PTK from BTK, address, and Replay Counter
* @btk: Base Transient Key
* @btk_len: Length of BTK
* @bssid: BSSID / AP ID
* @ptk: Buffer for Pairwise Transient Key
* @ptk_len: Length of PTK
*
* PTK = PRF-512(BTK, "", RN || AP_ID)
*/
void wpa_btk_to_ptk(const u8 *btk, size_t btk_len, const u8 *bssid,
u32 cckm_rn, u8 *ptk, size_t ptk_len)
{
u8 data[ETH_ALEN + 4];
WPA_PUT_LE32(data, cckm_rn);
os_memcpy(data + 4, bssid, ETH_ALEN);
sha1_prf(btk, btk_len, NULL, data, sizeof(data), ptk, ptk_len);
wpa_hexdump_key(MSG_DEBUG, "WPA: BTK-PTK", ptk, ptk_len);
}
void wpa_gmk_to_gtk(u8 *gmk, u8 *addr, u8 *gnonce, u8 *gtk, size_t gtk_len)
{
u8 data[ETH_ALEN + WPA_NONCE_LEN];
/* GTK = PRF-X(GMK, "Group key expansion", AA || GNonce) */
memcpy(data, addr, ETH_ALEN);
memcpy(data + ETH_ALEN, gnonce, WPA_NONCE_LEN);
sha1_prf(gmk, WPA_GMK_LEN, "Group key expansion",
data, sizeof(data), gtk, gtk_len);
//wpa_hexdump_key(MSG_DEBUG, "WPA: GMK", gmk, gmk_len);
//wpa_hexdump_key(MSG_DEBUG, "WPA: GTK", gtk, gtk_len);
}
/**
* wpa_nsk_to_cgk - Calculate CCMP Keys from NSK, addresses, and nonces
* @nsk: Network Session Key
* @nsk_len: Length of NSK
* @addr1: AA
* @addr2: SA
* @nonce1: SNonce
* @nonce2: ANonce
* @cgk: Buffer for CCKM Common Keys
* @cgk_len: Length of CGK
*
*/
void wpa_nsk_to_cgk(const u8 *nsk, size_t nsk_len,
const u8 *addr1, const u8 *addr2,
const u8 *nonce1, const u8 *nonce2,
u8 *cgk, size_t cgk_len)
{
u8 data[2 * ETH_ALEN + 2 * WPA_NONCE_LEN];
const char *label = "Fast-Roam Generate Base Key";
os_memcpy(data, addr1, ETH_ALEN);
os_memcpy(data + ETH_ALEN, addr2, ETH_ALEN);
os_memcpy(data + 2 * ETH_ALEN, nonce1, WPA_NONCE_LEN);
os_memcpy(data + 2 * ETH_ALEN + WPA_NONCE_LEN, nonce2, WPA_NONCE_LEN);
sha1_prf(nsk, nsk_len, label, data, sizeof(data), cgk, cgk_len);
wpa_hexdump_key(MSG_DEBUG, "WPA: NSK", nsk, nsk_len);
wpa_hexdump_key(MSG_DEBUG, "WPA: CGK", cgk, cgk_len);
}
/**
* wpa_pmk_to_ptk - Calculate PTK from PMK, addresses, and nonces
* @pmk: Pairwise master key
* @pmk_len: Length of PMK
* @label: Label to use in derivation
* @addr1: AA or SA
* @addr2: SA or AA
* @nonce1: ANonce or SNonce
* @nonce2: SNonce or ANonce
* @ptk: Buffer for pairwise transient key
* @ptk_len: Length of PTK
* @use_sha256: Whether to use SHA256-based KDF
*
* IEEE Std 802.11i-2004 - 8.5.1.2 Pairwise key hierarchy
* PTK = PRF-X(PMK, "Pairwise key expansion",
* Min(AA, SA) || Max(AA, SA) ||
* Min(ANonce, SNonce) || Max(ANonce, SNonce))
*
* STK = PRF-X(SMK, "Peer key expansion",
* Min(MAC_I, MAC_P) || Max(MAC_I, MAC_P) ||
* Min(INonce, PNonce) || Max(INonce, PNonce))
*/
void wpa_pmk_to_ptk(const u8 *pmk, size_t pmk_len, const char *label,
const u8 *addr1, const u8 *addr2,
const u8 *nonce1, const u8 *nonce2,
u8 *ptk, size_t ptk_len, int use_sha256)
{
u8 data[2 * ETH_ALEN + 2 * WPA_NONCE_LEN];
if (os_memcmp(addr1, addr2, ETH_ALEN) < 0) {
os_memcpy(data, addr1, ETH_ALEN);
os_memcpy(data + ETH_ALEN, addr2, ETH_ALEN);
} else {
os_memcpy(data, addr2, ETH_ALEN);
os_memcpy(data + ETH_ALEN, addr1, ETH_ALEN);
}
if (os_memcmp(nonce1, nonce2, WPA_NONCE_LEN) < 0) {
os_memcpy(data + 2 * ETH_ALEN, nonce1, WPA_NONCE_LEN);
os_memcpy(data + 2 * ETH_ALEN + WPA_NONCE_LEN, nonce2,
WPA_NONCE_LEN);
} else {
os_memcpy(data + 2 * ETH_ALEN, nonce2, WPA_NONCE_LEN);
os_memcpy(data + 2 * ETH_ALEN + WPA_NONCE_LEN, nonce1,
WPA_NONCE_LEN);
}
#ifdef CONFIG_IEEE80211W
if (use_sha256)
sha256_prf(pmk, pmk_len, label, data, sizeof(data),
ptk, ptk_len);
else
#endif /* CONFIG_IEEE80211W */
sha1_prf(pmk, pmk_len, label, data, sizeof(data), ptk,
ptk_len);
wpa_printf(MSG_DEBUG, "WPA: PTK derivation - A1=" MACSTR " A2=" MACSTR,
MAC2STR(addr1), MAC2STR(addr2));
wpa_hexdump(MSG_DEBUG, "WPA: Nonce1", nonce1, WPA_NONCE_LEN);
wpa_hexdump(MSG_DEBUG, "WPA: Nonce2", nonce2, WPA_NONCE_LEN);
wpa_hexdump_key(MSG_DEBUG, "WPA: PMK", pmk, pmk_len);
wpa_hexdump_key(MSG_DEBUG, "WPA: PTK", ptk, ptk_len);
}
void wpa_smk_m3(struct wpa_authenticator *wpa_auth,
struct wpa_state_machine *sm, struct wpa_eapol_key *key)
{
struct wpa_eapol_ie_parse kde;
struct wpa_stsl_search search;
u8 smk[32], buf[ETH_ALEN + 8 + 2 * WPA_NONCE_LEN], *pos;
if (wpa_parse_kde_ies((const u8 *) (key + 1),
WPA_GET_BE16(key->key_data_length), &kde) < 0) {
wpa_printf(MSG_INFO, "RSN: Failed to parse KDEs in SMK M3");
return;
}
if (kde.rsn_ie == NULL ||
kde.mac_addr == NULL || kde.mac_addr_len < ETH_ALEN ||
kde.nonce == NULL || kde.nonce_len < WPA_NONCE_LEN) {
wpa_printf(MSG_INFO, "RSN: No RSN IE, MAC address KDE, or "
"Nonce KDE in SMK M3");
return;
}
/* Peer = sm->addr; Initiator = kde.mac_addr;
* Peer Nonce = key->key_nonce; Initiator Nonce = kde.nonce */
search.addr = kde.mac_addr;
search.sm = NULL;
if (wpa_auth_for_each_sta(wpa_auth, wpa_stsl_select_sta, &search) ==
0 || search.sm == NULL) {
wpa_printf(MSG_DEBUG, "RSN: SMK handshake with " MACSTR
" aborted - STA not associated anymore",
MAC2STR(kde.mac_addr));
wpa_smk_send_error(wpa_auth, sm, kde.mac_addr, STK_MUI_SMK,
STK_ERR_STA_NR);
/* FIX: wpa_stsl_remove(wpa_auth, neg); */
return;
}
if (os_get_random(smk, PMK_LEN)) {
wpa_printf(MSG_DEBUG, "RSN: Failed to generate SMK");
return;
}
/* SMK = PRF-256(Random number, "SMK Derivation",
* AA || Time || INonce || PNonce)
*/
os_memcpy(buf, wpa_auth->addr, ETH_ALEN);
pos = buf + ETH_ALEN;
wpa_get_ntp_timestamp(pos);
pos += 8;
os_memcpy(pos, kde.nonce, WPA_NONCE_LEN);
pos += WPA_NONCE_LEN;
os_memcpy(pos, key->key_nonce, WPA_NONCE_LEN);
sha1_prf(smk, PMK_LEN, "SMK Derivation", buf, sizeof(buf),
smk, PMK_LEN);
wpa_hexdump_key(MSG_DEBUG, "RSN: SMK", smk, PMK_LEN);
wpa_send_smk_m4(wpa_auth, sm, key, &kde, smk);
wpa_send_smk_m5(wpa_auth, search.sm, key, &kde, smk, sm->addr);
/* Authenticator does not need SMK anymore and it is required to forget
* it. */
os_memset(smk, 0, sizeof(*smk));
}
int main(int argc, char *argv[])
{
u8 res[512];
int ret = 0;
unsigned int i;
printf("PRF-SHA1 test cases:\n");
sha1_prf(key0, sizeof(key0), "prefix", data0, sizeof(data0) - 1,
res, sizeof(prf0));
if (memcmp(res, prf0, sizeof(prf0)) == 0)
printf("Test case 0 - OK\n");
else {
printf("Test case 0 - FAILED!\n");
ret++;
}
sha1_prf(key1, sizeof(key1) - 1, "prefix", data1, sizeof(data1) - 1,
res, sizeof(prf1));
if (memcmp(res, prf1, sizeof(prf1)) == 0)
printf("Test case 1 - OK\n");
else {
printf("Test case 1 - FAILED!\n");
ret++;
}
sha1_prf(key2, sizeof(key2), "prefix", data2, sizeof(data2),
res, sizeof(prf2));
if (memcmp(res, prf2, sizeof(prf2)) == 0)
printf("Test case 2 - OK\n");
else {
printf("Test case 2 - FAILED!\n");
ret++;
}
ret += test_eap_fast();
printf("PBKDF2-SHA1 Passphrase test cases:\n");
for (i = 0; i < NUM_PASSPHRASE_TESTS; i++) {
u8 psk[32];
struct passphrase_test *test = &passphrase_tests[i];
pbkdf2_sha1(test->passphrase,
test->ssid, strlen(test->ssid),
4096, psk, 32);
if (memcmp(psk, test->psk, 32) == 0)
printf("Test case %d - OK\n", i);
else {
printf("Test case %d - FAILED!\n", i);
ret++;
}
}
printf("PBKDF2-SHA1 test cases (RFC 6070):\n");
for (i = 0; i < NUM_RFC6070_TESTS; i++) {
u8 dk[25];
struct rfc6070_test *test = &rfc6070_tests[i];
pbkdf2_sha1(test->p, test->s, strlen(test->s), test->c,
dk, test->dk_len);
if (memcmp(dk, test->dk, test->dk_len) == 0)
printf("Test case %d - OK\n", i);
else {
printf("Test case %d - FAILED!\n", i);
ret++;
}
}
return ret;
}
static void * test_driver_init(struct hostapd_data *hapd)
{
struct test_driver_data *drv;
struct sockaddr_un addr_un;
struct sockaddr_in addr_in;
struct sockaddr *addr;
socklen_t alen;
drv = os_zalloc(sizeof(struct test_driver_data));
if (drv == NULL) {
printf("Could not allocate memory for test driver data\n");
return NULL;
}
drv->bss = os_zalloc(sizeof(*drv->bss));
if (drv->bss == NULL) {
printf("Could not allocate memory for test driver BSS data\n");
free(drv);
return NULL;
}
drv->hapd = hapd;
/* Generate a MAC address to help testing with multiple APs */
hapd->own_addr[0] = 0x02; /* locally administered */
sha1_prf((const u8 *) hapd->conf->iface, strlen(hapd->conf->iface),
"hostapd test bssid generation",
(const u8 *) hapd->conf->ssid.ssid, hapd->conf->ssid.ssid_len,
hapd->own_addr + 1, ETH_ALEN - 1);
os_strlcpy(drv->bss->ifname, hapd->conf->iface, IFNAMSIZ);
memcpy(drv->bss->bssid, hapd->own_addr, ETH_ALEN);
if (hapd->conf->test_socket) {
if (strlen(hapd->conf->test_socket) >=
sizeof(addr_un.sun_path)) {
printf("Too long test_socket path\n");
test_driver_free_priv(drv);
return NULL;
}
if (strncmp(hapd->conf->test_socket, "DIR:", 4) == 0) {
size_t len = strlen(hapd->conf->test_socket) + 30;
drv->socket_dir = strdup(hapd->conf->test_socket + 4);
drv->own_socket_path = malloc(len);
if (drv->own_socket_path) {
snprintf(drv->own_socket_path, len,
"%s/AP-" MACSTR,
hapd->conf->test_socket + 4,
MAC2STR(hapd->own_addr));
}
} else if (strncmp(hapd->conf->test_socket, "UDP:", 4) == 0) {
drv->udp_port = atoi(hapd->conf->test_socket + 4);
} else {
drv->own_socket_path = strdup(hapd->conf->test_socket);
}
if (drv->own_socket_path == NULL && drv->udp_port == 0) {
test_driver_free_priv(drv);
return NULL;
}
drv->test_socket = socket(drv->udp_port ? PF_INET : PF_UNIX,
SOCK_DGRAM, 0);
if (drv->test_socket < 0) {
perror("socket");
test_driver_free_priv(drv);
return NULL;
}
if (drv->udp_port) {
os_memset(&addr_in, 0, sizeof(addr_in));
addr_in.sin_family = AF_INET;
addr_in.sin_port = htons(drv->udp_port);
addr = (struct sockaddr *) &addr_in;
alen = sizeof(addr_in);
} else {
os_memset(&addr_un, 0, sizeof(addr_un));
addr_un.sun_family = AF_UNIX;
os_strlcpy(addr_un.sun_path, drv->own_socket_path,
sizeof(addr_un.sun_path));
addr = (struct sockaddr *) &addr_un;
alen = sizeof(addr_un);
}
if (bind(drv->test_socket, addr, alen) < 0) {
perror("bind(PF_UNIX)");
close(drv->test_socket);
if (drv->own_socket_path)
unlink(drv->own_socket_path);
test_driver_free_priv(drv);
return NULL;
}
eloop_register_read_sock(drv->test_socket,
test_driver_receive_unix, drv, NULL);
} else
drv->test_socket = -1;
return drv;
}
int mrvl_sha1_prf(const u8 *key, size_t key_len, const char *label,
const u8 *data, size_t data_len, u8 *buf, size_t buf_len)
{
sha1_prf(key, key_len, label, data, data_len, buf, buf_len);
return 0;
}
static int test_driver_init(struct hostapd_data *hapd)
{
struct test_driver_data *drv;
struct sockaddr_un addr;
drv = wpa_zalloc(sizeof(struct test_driver_data));
if (drv == NULL) {
printf("Could not allocate memory for test driver data\n");
return -1;
}
drv->bss = wpa_zalloc(sizeof(*drv->bss));
if (drv->bss == NULL) {
printf("Could not allocate memory for test driver BSS data\n");
free(drv);
return -1;
}
drv->ops = test_driver_ops;
drv->hapd = hapd;
/* Generate a MAC address to help testing with multiple APs */
hapd->own_addr[0] = 0x02; /* locally administered */
sha1_prf((const u8 *) hapd->conf->iface, strlen(hapd->conf->iface),
"hostapd test bssid generation",
(const u8 *) hapd->conf->ssid.ssid, hapd->conf->ssid.ssid_len,
hapd->own_addr + 1, ETH_ALEN - 1);
strncpy(drv->bss->ifname, hapd->conf->iface, IFNAMSIZ);
memcpy(drv->bss->bssid, hapd->own_addr, ETH_ALEN);
if (hapd->conf->test_socket) {
if (strlen(hapd->conf->test_socket) >= sizeof(addr.sun_path)) {
printf("Too long test_socket path\n");
test_driver_free_priv(drv);
return -1;
}
if (strncmp(hapd->conf->test_socket, "DIR:", 4) == 0) {
size_t len = strlen(hapd->conf->test_socket) + 30;
drv->socket_dir = strdup(hapd->conf->test_socket + 4);
drv->own_socket_path = malloc(len);
if (drv->own_socket_path) {
snprintf(drv->own_socket_path, len,
"%s/AP-" MACSTR,
hapd->conf->test_socket + 4,
MAC2STR(hapd->own_addr));
}
} else {
drv->own_socket_path = strdup(hapd->conf->test_socket);
}
if (drv->own_socket_path == NULL) {
test_driver_free_priv(drv);
return -1;
}
drv->test_socket = socket(PF_UNIX, SOCK_DGRAM, 0);
if (drv->test_socket < 0) {
perror("socket(PF_UNIX)");
test_driver_free_priv(drv);
return -1;
}
memset(&addr, 0, sizeof(addr));
addr.sun_family = AF_UNIX;
strncpy(addr.sun_path, drv->own_socket_path,
sizeof(addr.sun_path));
if (bind(drv->test_socket, (struct sockaddr *) &addr,
sizeof(addr)) < 0) {
perror("bind(PF_UNIX)");
close(drv->test_socket);
unlink(drv->own_socket_path);
test_driver_free_priv(drv);
return -1;
}
eloop_register_read_sock(drv->test_socket,
test_driver_receive_unix, drv, NULL);
} else
drv->test_socket = -1;
hapd->driver = &drv->ops;
return 0;
}