Author: gordon Date: Tue Oct 17 17:22:36 2017 New Revision: 324696 URL: https://svnweb.freebsd.org/changeset/base/324696
Log: Update wpa_supplicant/hostapd for 2017-01 vulnerability release. hostapd: Avoid key reinstallation in FT handshake Prevent reinstallation of an already in-use group key Extend protection of GTK/IGTK reinstallation of WNM-Sleep Mode cases Fix TK configuration to the driver in EAPOL-Key 3/4 retry case Prevent installation of an all-zero TK Fix PTK rekeying to generate a new ANonce TDLS: Reject TPK-TK reconfiguration WNM: Ignore Key Data in WNM Sleep Mode Response frame if no PMF in use WNM: Ignore WNM-Sleep Mode Response if WNM-Sleep Mode has not been used WNM: Ignore WNM-Sleep Mode Response without pending request FT: Do not allow multiple Reassociation Response frames TDLS: Ignore incoming TDLS Setup Response retries Submitted by: jhb Obtained from: https://w1.fi/security/2017-01/ (against later version) Security: FreeBSD-SA-17:07 Security: CERT VU#228519 Security: CVE-2017-13077 Security: CVE-2017-13078 Security: CVE-2017-13079 Security: CVE-2017-13080 Security: CVE-2017-13081 Security: CVE-2017-13082 Security: CVE-2017-13086 Security: CVE-2017-13087 Security: CVE-2017-13088 Differential Revision: https://reviews.freebsd.org/D12693 Modified: head/contrib/wpa/src/ap/wpa_auth.c head/contrib/wpa/src/ap/wpa_auth.h head/contrib/wpa/src/ap/wpa_auth_ft.c head/contrib/wpa/src/ap/wpa_auth_i.h head/contrib/wpa/src/common/wpa_common.h head/contrib/wpa/src/rsn_supp/tdls.c head/contrib/wpa/src/rsn_supp/wpa.c head/contrib/wpa/src/rsn_supp/wpa_ft.c head/contrib/wpa/src/rsn_supp/wpa_i.h head/contrib/wpa/wpa_supplicant/ctrl_iface.c head/contrib/wpa/wpa_supplicant/events.c head/contrib/wpa/wpa_supplicant/wnm_sta.c head/contrib/wpa/wpa_supplicant/wpa_supplicant_i.h Modified: head/contrib/wpa/src/ap/wpa_auth.c ============================================================================== --- head/contrib/wpa/src/ap/wpa_auth.c Tue Oct 17 16:29:50 2017 (r324695) +++ head/contrib/wpa/src/ap/wpa_auth.c Tue Oct 17 17:22:36 2017 (r324696) @@ -1893,6 +1893,21 @@ SM_STATE(WPA_PTK, AUTHENTICATION2) } +static int wpa_auth_sm_ptk_update(struct wpa_state_machine *sm) +{ + if (random_get_bytes(sm->ANonce, WPA_NONCE_LEN)) { + wpa_printf(MSG_ERROR, + "WPA: Failed to get random data for ANonce"); + sm->Disconnect = TRUE; + return -1; + } + wpa_hexdump(MSG_DEBUG, "WPA: Assign new ANonce", sm->ANonce, + WPA_NONCE_LEN); + sm->TimeoutCtr = 0; + return 0; +} + + SM_STATE(WPA_PTK, INITPMK) { u8 msk[2 * PMK_LEN]; @@ -2414,9 +2429,12 @@ SM_STEP(WPA_PTK) SM_ENTER(WPA_PTK, AUTHENTICATION); else if (sm->ReAuthenticationRequest) SM_ENTER(WPA_PTK, AUTHENTICATION2); - else if (sm->PTKRequest) - SM_ENTER(WPA_PTK, PTKSTART); - else switch (sm->wpa_ptk_state) { + else if (sm->PTKRequest) { + if (wpa_auth_sm_ptk_update(sm) < 0) + SM_ENTER(WPA_PTK, DISCONNECTED); + else + SM_ENTER(WPA_PTK, PTKSTART); + } else switch (sm->wpa_ptk_state) { case WPA_PTK_INITIALIZE: break; case WPA_PTK_DISCONNECT: @@ -3206,6 +3224,14 @@ int wpa_auth_sta_wpa_version(struct wpa_state_machine if (sm == NULL) return 0; return sm->wpa; +} + + +int wpa_auth_sta_ft_tk_already_set(struct wpa_state_machine *sm) +{ + if (!sm || !wpa_key_mgmt_ft(sm->wpa_key_mgmt)) + return 0; + return sm->tk_already_set; } Modified: head/contrib/wpa/src/ap/wpa_auth.h ============================================================================== --- head/contrib/wpa/src/ap/wpa_auth.h Tue Oct 17 16:29:50 2017 (r324695) +++ head/contrib/wpa/src/ap/wpa_auth.h Tue Oct 17 17:22:36 2017 (r324696) @@ -271,6 +271,7 @@ int wpa_auth_pairwise_set(struct wpa_state_machine *sm int wpa_auth_get_pairwise(struct wpa_state_machine *sm); int wpa_auth_sta_key_mgmt(struct wpa_state_machine *sm); int wpa_auth_sta_wpa_version(struct wpa_state_machine *sm); +int wpa_auth_sta_ft_tk_already_set(struct wpa_state_machine *sm); int wpa_auth_sta_clear_pmksa(struct wpa_state_machine *sm, struct rsn_pmksa_cache_entry *entry); struct rsn_pmksa_cache_entry * Modified: head/contrib/wpa/src/ap/wpa_auth_ft.c ============================================================================== --- head/contrib/wpa/src/ap/wpa_auth_ft.c Tue Oct 17 16:29:50 2017 (r324695) +++ head/contrib/wpa/src/ap/wpa_auth_ft.c Tue Oct 17 17:22:36 2017 (r324696) @@ -780,6 +780,14 @@ void wpa_ft_install_ptk(struct wpa_state_machine *sm) return; } + if (sm->tk_already_set) { + /* Must avoid TK reconfiguration to prevent clearing of TX/RX + * PN in the driver */ + wpa_printf(MSG_DEBUG, + "FT: Do not re-install same PTK to the driver"); + return; + } + /* FIX: add STA entry to kernel/driver here? The set_key will fail * most likely without this.. At the moment, STA entry is added only * after association has been completed. This function will be called @@ -792,6 +800,7 @@ void wpa_ft_install_ptk(struct wpa_state_machine *sm) /* FIX: MLME-SetProtection.Request(TA, Tx_Rx) */ sm->pairwise_set = TRUE; + sm->tk_already_set = TRUE; } @@ -898,6 +907,7 @@ static int wpa_ft_process_auth_req(struct wpa_state_ma sm->pairwise = pairwise; sm->PTK_valid = TRUE; + sm->tk_already_set = FALSE; wpa_ft_install_ptk(sm); buflen = 2 + sizeof(struct rsn_mdie) + 2 + sizeof(struct rsn_ftie) + Modified: head/contrib/wpa/src/ap/wpa_auth_i.h ============================================================================== --- head/contrib/wpa/src/ap/wpa_auth_i.h Tue Oct 17 16:29:50 2017 (r324695) +++ head/contrib/wpa/src/ap/wpa_auth_i.h Tue Oct 17 17:22:36 2017 (r324696) @@ -64,6 +64,7 @@ struct wpa_state_machine { struct wpa_ptk PTK; Boolean PTK_valid; Boolean pairwise_set; + Boolean tk_already_set; int keycount; Boolean Pair; struct wpa_key_replay_counter { Modified: head/contrib/wpa/src/common/wpa_common.h ============================================================================== --- head/contrib/wpa/src/common/wpa_common.h Tue Oct 17 16:29:50 2017 (r324695) +++ head/contrib/wpa/src/common/wpa_common.h Tue Oct 17 17:22:36 2017 (r324696) @@ -213,8 +213,20 @@ struct wpa_ptk { size_t kck_len; size_t kek_len; size_t tk_len; + int installed; /* 1 if key has already been installed to driver */ }; +struct wpa_gtk { + u8 gtk[WPA_GTK_MAX_LEN]; + size_t gtk_len; +}; + +#ifdef CONFIG_IEEE80211W +struct wpa_igtk { + u8 igtk[WPA_IGTK_MAX_LEN]; + size_t igtk_len; +}; +#endif /* CONFIG_IEEE80211W */ /* WPA IE version 1 * 00-50-f2:1 (OUI:OUI type) Modified: head/contrib/wpa/src/rsn_supp/tdls.c ============================================================================== --- head/contrib/wpa/src/rsn_supp/tdls.c Tue Oct 17 16:29:50 2017 (r324695) +++ head/contrib/wpa/src/rsn_supp/tdls.c Tue Oct 17 17:22:36 2017 (r324696) @@ -112,6 +112,7 @@ struct wpa_tdls_peer { u8 tk[16]; /* TPK-TK; assuming only CCMP will be used */ } tpk; int tpk_set; + int tk_set; /* TPK-TK configured to the driver */ int tpk_success; int tpk_in_progress; @@ -192,6 +193,20 @@ static int wpa_tdls_set_key(struct wpa_sm *sm, struct u8 rsc[6]; enum wpa_alg alg; + if (peer->tk_set) { + /* + * This same TPK-TK has already been configured to the driver + * and this new configuration attempt (likely due to an + * unexpected retransmitted frame) would result in clearing + * the TX/RX sequence number which can break security, so must + * not allow that to happen. + */ + wpa_printf(MSG_INFO, "TDLS: TPK-TK for the peer " MACSTR + " has already been configured to the driver - do not reconfigure", + MAC2STR(peer->addr)); + return -1; + } + os_memset(rsc, 0, 6); switch (peer->cipher) { @@ -209,12 +224,15 @@ static int wpa_tdls_set_key(struct wpa_sm *sm, struct return -1; } + wpa_printf(MSG_DEBUG, "TDLS: Configure pairwise key for peer " MACSTR, + MAC2STR(peer->addr)); if (wpa_sm_set_key(sm, alg, peer->addr, -1, 1, rsc, sizeof(rsc), peer->tpk.tk, key_len) < 0) { wpa_printf(MSG_WARNING, "TDLS: Failed to set TPK to the " "driver"); return -1; } + peer->tk_set = 1; return 0; } @@ -690,7 +708,7 @@ static void wpa_tdls_peer_clear(struct wpa_sm *sm, str peer->cipher = 0; peer->qos_info = 0; peer->wmm_capable = 0; - peer->tpk_set = peer->tpk_success = 0; + peer->tk_set = peer->tpk_set = peer->tpk_success = 0; peer->chan_switch_enabled = 0; os_memset(&peer->tpk, 0, sizeof(peer->tpk)); os_memset(peer->inonce, 0, WPA_NONCE_LEN); @@ -1153,6 +1171,7 @@ skip_rsnie: wpa_tdls_peer_free(sm, peer); return -1; } + peer->tk_set = 0; /* A new nonce results in a new TK */ wpa_hexdump(MSG_DEBUG, "TDLS: Initiator Nonce for TPK handshake", peer->inonce, WPA_NONCE_LEN); os_memcpy(ftie->Snonce, peer->inonce, WPA_NONCE_LEN); @@ -1745,6 +1764,19 @@ static int wpa_tdls_addset_peer(struct wpa_sm *sm, str } +static int tdls_nonce_set(const u8 *nonce) +{ + int i; + + for (i = 0; i < WPA_NONCE_LEN; i++) { + if (nonce[i]) + return 1; + } + + return 0; +} + + static int wpa_tdls_process_tpk_m1(struct wpa_sm *sm, const u8 *src_addr, const u8 *buf, size_t len) { @@ -1998,7 +2030,8 @@ skip_rsn: peer->rsnie_i_len = kde.rsn_ie_len; peer->cipher = cipher; - if (os_memcmp(peer->inonce, ftie->Snonce, WPA_NONCE_LEN) != 0) { + if (os_memcmp(peer->inonce, ftie->Snonce, WPA_NONCE_LEN) != 0 || + !tdls_nonce_set(peer->inonce)) { /* * There is no point in updating the RNonce for every obtained * TPK M1 frame (e.g., retransmission due to timeout) with the @@ -2014,6 +2047,7 @@ skip_rsn: "TDLS: Failed to get random data for responder nonce"); goto error; } + peer->tk_set = 0; /* A new nonce results in a new TK */ } #if 0 @@ -2170,6 +2204,14 @@ static int wpa_tdls_process_tpk_m2(struct wpa_sm *sm, "ignore TPK M2 from " MACSTR, MAC2STR(src_addr)); return -1; } + + if (peer->tpk_success) { + wpa_printf(MSG_INFO, "TDLS: Ignore incoming TPK M2 retry, from " + MACSTR " as TPK M3 was already sent", + MAC2STR(src_addr)); + return 0; + } + wpa_tdls_tpk_retry_timeout_cancel(sm, peer, WLAN_TDLS_SETUP_REQUEST); if (len < 3 + 2 + 1) { Modified: head/contrib/wpa/src/rsn_supp/wpa.c ============================================================================== --- head/contrib/wpa/src/rsn_supp/wpa.c Tue Oct 17 16:29:50 2017 (r324695) +++ head/contrib/wpa/src/rsn_supp/wpa.c Tue Oct 17 17:22:36 2017 (r324696) @@ -605,6 +605,12 @@ static int wpa_supplicant_install_ptk(struct wpa_sm *s const u8 *key_rsc; u8 null_rsc[8] = { 0, 0, 0, 0, 0, 0, 0, 0 }; + if (sm->ptk.installed) { + wpa_dbg(sm->ctx->msg_ctx, MSG_DEBUG, + "WPA: Do not re-install same PTK to the driver"); + return 0; + } + wpa_dbg(sm->ctx->msg_ctx, MSG_DEBUG, "WPA: Installing PTK to the driver"); @@ -643,6 +649,7 @@ static int wpa_supplicant_install_ptk(struct wpa_sm *s /* TK is not needed anymore in supplicant */ os_memset(sm->ptk.tk, 0, WPA_TK_MAX_LEN); + sm->ptk.installed = 1; if (sm->wpa_ptk_rekey) { eloop_cancel_timeout(wpa_sm_rekey_ptk, sm, NULL); @@ -692,11 +699,23 @@ struct wpa_gtk_data { static int wpa_supplicant_install_gtk(struct wpa_sm *sm, const struct wpa_gtk_data *gd, - const u8 *key_rsc) + const u8 *key_rsc, int wnm_sleep) { const u8 *_gtk = gd->gtk; u8 gtk_buf[32]; + /* Detect possible key reinstallation */ + if ((sm->gtk.gtk_len == (size_t) gd->gtk_len && + os_memcmp(sm->gtk.gtk, gd->gtk, sm->gtk.gtk_len) == 0) || + (sm->gtk_wnm_sleep.gtk_len == (size_t) gd->gtk_len && + os_memcmp(sm->gtk_wnm_sleep.gtk, gd->gtk, + sm->gtk_wnm_sleep.gtk_len) == 0)) { + wpa_dbg(sm->ctx->msg_ctx, MSG_DEBUG, + "WPA: Not reinstalling already in-use GTK to the driver (keyidx=%d tx=%d len=%d)", + gd->keyidx, gd->tx, gd->gtk_len); + return 0; + } + wpa_hexdump_key(MSG_DEBUG, "WPA: Group Key", gd->gtk, gd->gtk_len); wpa_dbg(sm->ctx->msg_ctx, MSG_DEBUG, "WPA: Installing GTK to the driver (keyidx=%d tx=%d len=%d)", @@ -731,6 +750,15 @@ static int wpa_supplicant_install_gtk(struct wpa_sm *s } os_memset(gtk_buf, 0, sizeof(gtk_buf)); + if (wnm_sleep) { + sm->gtk_wnm_sleep.gtk_len = gd->gtk_len; + os_memcpy(sm->gtk_wnm_sleep.gtk, gd->gtk, + sm->gtk_wnm_sleep.gtk_len); + } else { + sm->gtk.gtk_len = gd->gtk_len; + os_memcpy(sm->gtk.gtk, gd->gtk, sm->gtk.gtk_len); + } + return 0; } @@ -788,7 +816,7 @@ static int wpa_supplicant_pairwise_gtk(struct wpa_sm * (wpa_supplicant_check_group_cipher(sm, sm->group_cipher, gtk_len, gtk_len, &gd.key_rsc_len, &gd.alg) || - wpa_supplicant_install_gtk(sm, &gd, key->key_rsc))) { + wpa_supplicant_install_gtk(sm, &gd, key->key_rsc, 0))) { wpa_dbg(sm->ctx->msg_ctx, MSG_DEBUG, "RSN: Failed to install GTK"); os_memset(&gd, 0, sizeof(gd)); @@ -802,6 +830,58 @@ static int wpa_supplicant_pairwise_gtk(struct wpa_sm * } +#ifdef CONFIG_IEEE80211W +static int wpa_supplicant_install_igtk(struct wpa_sm *sm, + const struct wpa_igtk_kde *igtk, + int wnm_sleep) +{ + size_t len = wpa_cipher_key_len(sm->mgmt_group_cipher); + u16 keyidx = WPA_GET_LE16(igtk->keyid); + + /* Detect possible key reinstallation */ + if ((sm->igtk.igtk_len == len && + os_memcmp(sm->igtk.igtk, igtk->igtk, sm->igtk.igtk_len) == 0) || + (sm->igtk_wnm_sleep.igtk_len == len && + os_memcmp(sm->igtk_wnm_sleep.igtk, igtk->igtk, + sm->igtk_wnm_sleep.igtk_len) == 0)) { + wpa_dbg(sm->ctx->msg_ctx, MSG_DEBUG, + "WPA: Not reinstalling already in-use IGTK to the driver (keyidx=%d)", + keyidx); + return 0; + } + + wpa_dbg(sm->ctx->msg_ctx, MSG_DEBUG, + "WPA: IGTK keyid %d pn %02x%02x%02x%02x%02x%02x", + keyidx, MAC2STR(igtk->pn)); + wpa_hexdump_key(MSG_DEBUG, "WPA: IGTK", igtk->igtk, len); + if (keyidx > 4095) { + wpa_msg(sm->ctx->msg_ctx, MSG_WARNING, + "WPA: Invalid IGTK KeyID %d", keyidx); + return -1; + } + if (wpa_sm_set_key(sm, wpa_cipher_to_alg(sm->mgmt_group_cipher), + broadcast_ether_addr, + keyidx, 0, igtk->pn, sizeof(igtk->pn), + igtk->igtk, len) < 0) { + wpa_msg(sm->ctx->msg_ctx, MSG_WARNING, + "WPA: Failed to configure IGTK to the driver"); + return -1; + } + + if (wnm_sleep) { + sm->igtk_wnm_sleep.igtk_len = len; + os_memcpy(sm->igtk_wnm_sleep.igtk, igtk->igtk, + sm->igtk_wnm_sleep.igtk_len); + } else { + sm->igtk.igtk_len = len; + os_memcpy(sm->igtk.igtk, igtk->igtk, sm->igtk.igtk_len); + } + + return 0; +} +#endif /* CONFIG_IEEE80211W */ + + static int ieee80211w_set_keys(struct wpa_sm *sm, struct wpa_eapol_ie_parse *ie) { @@ -812,30 +892,14 @@ static int ieee80211w_set_keys(struct wpa_sm *sm, if (ie->igtk) { size_t len; const struct wpa_igtk_kde *igtk; - u16 keyidx; + len = wpa_cipher_key_len(sm->mgmt_group_cipher); if (ie->igtk_len != WPA_IGTK_KDE_PREFIX_LEN + len) return -1; + igtk = (const struct wpa_igtk_kde *) ie->igtk; - keyidx = WPA_GET_LE16(igtk->keyid); - wpa_dbg(sm->ctx->msg_ctx, MSG_DEBUG, "WPA: IGTK keyid %d " - "pn %02x%02x%02x%02x%02x%02x", - keyidx, MAC2STR(igtk->pn)); - wpa_hexdump_key(MSG_DEBUG, "WPA: IGTK", - igtk->igtk, len); - if (keyidx > 4095) { - wpa_msg(sm->ctx->msg_ctx, MSG_WARNING, - "WPA: Invalid IGTK KeyID %d", keyidx); + if (wpa_supplicant_install_igtk(sm, igtk, 0) < 0) return -1; - } - if (wpa_sm_set_key(sm, wpa_cipher_to_alg(sm->mgmt_group_cipher), - broadcast_ether_addr, - keyidx, 0, igtk->pn, sizeof(igtk->pn), - igtk->igtk, len) < 0) { - wpa_msg(sm->ctx->msg_ctx, MSG_WARNING, - "WPA: Failed to configure IGTK to the driver"); - return -1; - } } return 0; @@ -1483,7 +1547,7 @@ static void wpa_supplicant_process_1_of_2(struct wpa_s if (ret) goto failed; - if (wpa_supplicant_install_gtk(sm, &gd, key->key_rsc) || + if (wpa_supplicant_install_gtk(sm, &gd, key->key_rsc, 0) || wpa_supplicant_send_2_of_2(sm, key, ver, key_info)) goto failed; os_memset(&gd, 0, sizeof(gd)); @@ -2251,7 +2315,7 @@ void wpa_sm_deinit(struct wpa_sm *sm) */ void wpa_sm_notify_assoc(struct wpa_sm *sm, const u8 *bssid) { - int clear_ptk = 1; + int clear_keys = 1; if (sm == NULL) return; @@ -2277,11 +2341,11 @@ void wpa_sm_notify_assoc(struct wpa_sm *sm, const u8 * /* Prepare for the next transition */ wpa_ft_prepare_auth_request(sm, NULL); - clear_ptk = 0; + clear_keys = 0; } #endif /* CONFIG_IEEE80211R */ - if (clear_ptk) { + if (clear_keys) { /* * IEEE 802.11, 8.4.10: Delete PTK SA on (re)association if * this is not part of a Fast BSS Transition. @@ -2291,6 +2355,12 @@ void wpa_sm_notify_assoc(struct wpa_sm *sm, const u8 * os_memset(&sm->ptk, 0, sizeof(sm->ptk)); sm->tptk_set = 0; os_memset(&sm->tptk, 0, sizeof(sm->tptk)); + os_memset(&sm->gtk, 0, sizeof(sm->gtk)); + os_memset(&sm->gtk_wnm_sleep, 0, sizeof(sm->gtk_wnm_sleep)); +#ifdef CONFIG_IEEE80211W + os_memset(&sm->igtk, 0, sizeof(sm->igtk)); + os_memset(&sm->igtk_wnm_sleep, 0, sizeof(sm->igtk_wnm_sleep)); +#endif /* CONFIG_IEEE80211W */ } #ifdef CONFIG_TDLS @@ -2322,6 +2392,9 @@ void wpa_sm_notify_disassoc(struct wpa_sm *sm) #ifdef CONFIG_TDLS wpa_tdls_disassoc(sm); #endif /* CONFIG_TDLS */ +#ifdef CONFIG_IEEE80211R + sm->ft_reassoc_completed = 0; +#endif /* CONFIG_IEEE80211R */ /* Keys are not needed in the WPA state machine anymore */ wpa_sm_drop_sa(sm); @@ -2807,6 +2880,12 @@ void wpa_sm_drop_sa(struct wpa_sm *sm) os_memset(sm->pmk, 0, sizeof(sm->pmk)); os_memset(&sm->ptk, 0, sizeof(sm->ptk)); os_memset(&sm->tptk, 0, sizeof(sm->tptk)); + os_memset(&sm->gtk, 0, sizeof(sm->gtk)); + os_memset(&sm->gtk_wnm_sleep, 0, sizeof(sm->gtk_wnm_sleep)); +#ifdef CONFIG_IEEE80211W + os_memset(&sm->igtk, 0, sizeof(sm->igtk)); + os_memset(&sm->igtk_wnm_sleep, 0, sizeof(sm->igtk_wnm_sleep)); +#endif /* CONFIG_IEEE80211W */ #ifdef CONFIG_IEEE80211R os_memset(sm->xxkey, 0, sizeof(sm->xxkey)); os_memset(sm->pmk_r0, 0, sizeof(sm->pmk_r0)); @@ -2870,7 +2949,7 @@ int wpa_wnmsleep_install_key(struct wpa_sm *sm, u8 sub wpa_hexdump_key(MSG_DEBUG, "Install GTK (WNM SLEEP)", gd.gtk, gd.gtk_len); - if (wpa_supplicant_install_gtk(sm, &gd, key_rsc)) { + if (wpa_supplicant_install_gtk(sm, &gd, key_rsc, 1)) { os_memset(&gd, 0, sizeof(gd)); wpa_printf(MSG_DEBUG, "Failed to install the GTK in " "WNM mode"); @@ -2879,29 +2958,11 @@ int wpa_wnmsleep_install_key(struct wpa_sm *sm, u8 sub os_memset(&gd, 0, sizeof(gd)); #ifdef CONFIG_IEEE80211W } else if (subelem_id == WNM_SLEEP_SUBELEM_IGTK) { - struct wpa_igtk_kde igd; - u16 keyidx; + const struct wpa_igtk_kde *igtk; - os_memset(&igd, 0, sizeof(igd)); - keylen = wpa_cipher_key_len(sm->mgmt_group_cipher); - os_memcpy(igd.keyid, buf + 2, 2); - os_memcpy(igd.pn, buf + 4, 6); - - keyidx = WPA_GET_LE16(igd.keyid); - os_memcpy(igd.igtk, buf + 10, keylen); - - wpa_hexdump_key(MSG_DEBUG, "Install IGTK (WNM SLEEP)", - igd.igtk, keylen); - if (wpa_sm_set_key(sm, wpa_cipher_to_alg(sm->mgmt_group_cipher), - broadcast_ether_addr, - keyidx, 0, igd.pn, sizeof(igd.pn), - igd.igtk, keylen) < 0) { - wpa_printf(MSG_DEBUG, "Failed to install the IGTK in " - "WNM mode"); - os_memset(&igd, 0, sizeof(igd)); + igtk = (const struct wpa_igtk_kde *) (buf + 2); + if (wpa_supplicant_install_igtk(sm, igtk, 1) < 0) return -1; - } - os_memset(&igd, 0, sizeof(igd)); #endif /* CONFIG_IEEE80211W */ } else { wpa_printf(MSG_DEBUG, "Unknown element id"); Modified: head/contrib/wpa/src/rsn_supp/wpa_ft.c ============================================================================== --- head/contrib/wpa/src/rsn_supp/wpa_ft.c Tue Oct 17 16:29:50 2017 (r324695) +++ head/contrib/wpa/src/rsn_supp/wpa_ft.c Tue Oct 17 17:22:36 2017 (r324696) @@ -153,6 +153,7 @@ static u8 * wpa_ft_gen_req_ies(struct wpa_sm *sm, size u16 capab; sm->ft_completed = 0; + sm->ft_reassoc_completed = 0; buf_len = 2 + sizeof(struct rsn_mdie) + 2 + sizeof(struct rsn_ftie) + 2 + sm->r0kh_id_len + ric_ies_len + 100; @@ -681,6 +682,11 @@ int wpa_ft_validate_reassoc_resp(struct wpa_sm *sm, co return -1; } + if (sm->ft_reassoc_completed) { + wpa_printf(MSG_DEBUG, "FT: Reassociation has already been completed for this FT protocol instance - ignore unexpected retransmission"); + return 0; + } + if (wpa_ft_parse_ies(ies, ies_len, &parse) < 0) { wpa_printf(MSG_DEBUG, "FT: Failed to parse IEs"); return -1; @@ -780,6 +786,8 @@ int wpa_ft_validate_reassoc_resp(struct wpa_sm *sm, co wpa_hexdump(MSG_MSGDUMP, "FT: Calculated MIC", mic, 16); return -1; } + + sm->ft_reassoc_completed = 1; if (wpa_ft_process_gtk_subelem(sm, parse.gtk, parse.gtk_len) < 0) return -1; Modified: head/contrib/wpa/src/rsn_supp/wpa_i.h ============================================================================== --- head/contrib/wpa/src/rsn_supp/wpa_i.h Tue Oct 17 16:29:50 2017 (r324695) +++ head/contrib/wpa/src/rsn_supp/wpa_i.h Tue Oct 17 17:22:36 2017 (r324696) @@ -30,6 +30,12 @@ struct wpa_sm { u8 rx_replay_counter[WPA_REPLAY_COUNTER_LEN]; int rx_replay_counter_set; u8 request_counter[WPA_REPLAY_COUNTER_LEN]; + struct wpa_gtk gtk; + struct wpa_gtk gtk_wnm_sleep; +#ifdef CONFIG_IEEE80211W + struct wpa_igtk igtk; + struct wpa_igtk igtk_wnm_sleep; +#endif /* CONFIG_IEEE80211W */ struct eapol_sm *eapol; /* EAPOL state machine from upper level code */ @@ -121,6 +127,7 @@ struct wpa_sm { size_t r0kh_id_len; u8 r1kh_id[FT_R1KH_ID_LEN]; int ft_completed; + int ft_reassoc_completed; int over_the_ds_in_progress; u8 target_ap[ETH_ALEN]; /* over-the-DS target AP */ int set_ptk_after_assoc; Modified: head/contrib/wpa/wpa_supplicant/ctrl_iface.c ============================================================================== --- head/contrib/wpa/wpa_supplicant/ctrl_iface.c Tue Oct 17 16:29:50 2017 (r324695) +++ head/contrib/wpa/wpa_supplicant/ctrl_iface.c Tue Oct 17 17:22:36 2017 (r324696) @@ -6891,6 +6891,7 @@ static void wpa_supplicant_ctrl_iface_flush(struct wpa } eloop_cancel_timeout(wpas_network_reenabled, wpa_s, NULL); + wpa_s->wnmsleep_used = 0; } Modified: head/contrib/wpa/wpa_supplicant/events.c ============================================================================== --- head/contrib/wpa/wpa_supplicant/events.c Tue Oct 17 16:29:50 2017 (r324695) +++ head/contrib/wpa/wpa_supplicant/events.c Tue Oct 17 17:22:36 2017 (r324696) @@ -303,6 +303,7 @@ void wpa_supplicant_mark_disassoc(struct wpa_supplican wpa_s->key_mgmt = 0; wpas_rrm_reset(wpa_s); + wpa_s->wnmsleep_used = 0; } Modified: head/contrib/wpa/wpa_supplicant/wnm_sta.c ============================================================================== --- head/contrib/wpa/wpa_supplicant/wnm_sta.c Tue Oct 17 16:29:50 2017 (r324695) +++ head/contrib/wpa/wpa_supplicant/wnm_sta.c Tue Oct 17 17:22:36 2017 (r324696) @@ -137,6 +137,8 @@ int ieee802_11_send_wnmsleep_req(struct wpa_supplicant if (res < 0) wpa_printf(MSG_DEBUG, "Failed to send WNM-Sleep Request " "(action=%d, intval=%d)", action, intval); + else + wpa_s->wnmsleep_used = 1; os_free(wnmsleep_ie); os_free(wnmtfs_ie); @@ -187,6 +189,12 @@ static void wnm_sleep_mode_exit_success(struct wpa_sup end = ptr + key_len_total; wpa_hexdump_key(MSG_DEBUG, "WNM: Key Data", ptr, key_len_total); + if (key_len_total && !wpa_sm_pmf_enabled(wpa_s->wpa)) { + wpa_msg(wpa_s, MSG_INFO, + "WNM: Ignore Key Data in WNM-Sleep Mode Response - PMF not enabled"); + return; + } + while (ptr + 1 < end) { if (ptr + 2 + ptr[1] > end) { wpa_printf(MSG_DEBUG, "WNM: Invalid Key Data element " @@ -247,6 +255,12 @@ static void ieee802_11_rx_wnmsleep_resp(struct wpa_sup u8 *tfsresp_ie_end = NULL; size_t left; + if (!wpa_s->wnmsleep_used) { + wpa_printf(MSG_DEBUG, + "WNM: Ignore WNM-Sleep Mode Response frame since WNM-Sleep Mode operation has not been requested"); + return; + } + if (len < 3) return; key_len_total = WPA_GET_LE16(frm + 1); @@ -281,6 +295,8 @@ static void ieee802_11_rx_wnmsleep_resp(struct wpa_sup wpa_printf(MSG_DEBUG, "No WNM-Sleep IE found"); return; } + + wpa_s->wnmsleep_used = 0; if (wnmsleep_ie->status == WNM_STATUS_SLEEP_ACCEPT || wnmsleep_ie->status == WNM_STATUS_SLEEP_EXIT_ACCEPT_GTK_UPDATE) { Modified: head/contrib/wpa/wpa_supplicant/wpa_supplicant_i.h ============================================================================== --- head/contrib/wpa/wpa_supplicant/wpa_supplicant_i.h Tue Oct 17 16:29:50 2017 (r324695) +++ head/contrib/wpa/wpa_supplicant/wpa_supplicant_i.h Tue Oct 17 17:22:36 2017 (r324696) @@ -658,6 +658,7 @@ struct wpa_supplicant { unsigned int reattach:1; /* reassociation to the same BSS requested */ unsigned int mac_addr_changed:1; unsigned int added_vif:1; + unsigned int wnmsleep_used:1; struct os_reltime last_mac_addr_change; int last_mac_addr_style; _______________________________________________ svn-src-head@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
