/* * WPA Supplicant - driver interaction with BSD net80211 layer * Copyright (c) 2004, Sam Leffler * Copyright (c) 2004, 2Wire, Inc * * This software may be distributed under the terms of the BSD license. * See README for more details. */ #include "includes.h" #include #include "common.h" #include "driver.h" #include "eloop.h" #include "common/ieee802_11_defs.h" #include "common/ieee802_11_common.h" #include "common/wpa_common.h" #include #include #include #include #ifdef __NetBSD__ #include #else #include #endif #include #ifdef __DragonFly__ #include #include #else /* __DragonFly__ */ #ifdef __GLIBC__ #include #endif /* __GLIBC__ */ #include #include #include #endif /* __DragonFly__ || __GLIBC__ */ #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) #include #endif #if __NetBSD__ #include #endif #include "l2_packet/l2_packet.h" struct bsd_driver_global { void *ctx; int sock; /* socket for 802.11 ioctls */ int route; /* routing socket for events */ struct dl_list ifaces; /* list of interfaces */ }; struct bsd_driver_data { struct dl_list list; struct bsd_driver_global *global; void *ctx; struct l2_packet_data *sock_xmit;/* raw packet xmit socket */ char ifname[IFNAMSIZ+1]; /* interface name */ int flags; unsigned int ifindex; /* interface index */ int if_removed; /* has the interface been removed? */ struct wpa_driver_capa capa; /* driver capability */ int is_ap; /* Access point mode */ int prev_roaming; /* roaming state to restore on deinit */ int prev_privacy; /* privacy state to restore on deinit */ int prev_wpa; /* wpa state to restore on deinit */ enum ieee80211_opmode opmode; /* operation mode */ }; /* Generic functions for hostapd and wpa_supplicant */ static struct bsd_driver_data * bsd_get_drvindex(void *priv, unsigned int ifindex) { struct bsd_driver_global *global = priv; struct bsd_driver_data *drv; dl_list_for_each(drv, &global->ifaces, struct bsd_driver_data, list) { if (drv->ifindex == ifindex) return drv; } return NULL; } static struct bsd_driver_data * bsd_get_drvname(void *priv, const char *ifname) { struct bsd_driver_global *global = priv; struct bsd_driver_data *drv; dl_list_for_each(drv, &global->ifaces, struct bsd_driver_data, list) { if (os_strcmp(drv->ifname, ifname) == 0) return drv; } return NULL; } static int bsd_set80211(void *priv, int op, int val, const void *arg, int arg_len) { struct bsd_driver_data *drv = priv; struct ieee80211req ireq; if (drv->ifindex == 0 || drv->if_removed) return -1; os_memset(&ireq, 0, sizeof(ireq)); os_strlcpy(ireq.i_name, drv->ifname, sizeof(ireq.i_name)); ireq.i_type = op; ireq.i_val = val; ireq.i_data = (void *) arg; ireq.i_len = arg_len; if (ioctl(drv->global->sock, SIOCS80211, &ireq) < 0) { wpa_printf(MSG_ERROR, "ioctl[SIOCS80211, op=%u, val=%u, " "arg_len=%u]: %s", op, val, arg_len, strerror(errno)); return -1; } return 0; } static int bsd_get80211(void *priv, struct ieee80211req *ireq, int op, void *arg, int arg_len) { struct bsd_driver_data *drv = priv; os_memset(ireq, 0, sizeof(*ireq)); os_strlcpy(ireq->i_name, drv->ifname, sizeof(ireq->i_name)); ireq->i_type = op; ireq->i_len = arg_len; ireq->i_data = arg; if (ioctl(drv->global->sock, SIOCG80211, ireq) < 0) { int level = drv->if_removed ? MSG_DEBUG : MSG_ERROR; wpa_printf(level, "ioctl[SIOCG80211, op=%u, " "arg_len=%u]: %s", op, arg_len, strerror(errno)); return -1; } return 0; } static int get80211var(struct bsd_driver_data *drv, int op, void *arg, int arg_len) { struct ieee80211req ireq; if (bsd_get80211(drv, &ireq, op, arg, arg_len) < 0) return -1; return ireq.i_len; } static int set80211var(struct bsd_driver_data *drv, int op, const void *arg, int arg_len) { return bsd_set80211(drv, op, 0, arg, arg_len); } static int set80211param(struct bsd_driver_data *drv, int op, int arg) { return bsd_set80211(drv, op, arg, NULL, 0); } static int bsd_get_ssid(void *priv, u8 *ssid, int len) { struct bsd_driver_data *drv = priv; #ifdef SIOCG80211NWID struct ieee80211_nwid nwid; struct ifreq ifr; os_memset(&ifr, 0, sizeof(ifr)); os_strlcpy(ifr.ifr_name, drv->ifname, sizeof(ifr.ifr_name)); ifr.ifr_data = (void *)&nwid; if (ioctl(drv->global->sock, SIOCG80211NWID, &ifr) < 0 || nwid.i_len > IEEE80211_NWID_LEN) return -1; os_memcpy(ssid, nwid.i_nwid, nwid.i_len); return nwid.i_len; #else return get80211var(drv, IEEE80211_IOC_SSID, ssid, IEEE80211_NWID_LEN); #endif } static int bsd_set_ssid(void *priv, const u8 *ssid, int ssid_len) { struct bsd_driver_data *drv = priv; #ifdef SIOCS80211NWID struct ieee80211_nwid nwid; struct ifreq ifr; os_memcpy(nwid.i_nwid, ssid, ssid_len); nwid.i_len = ssid_len; os_memset(&ifr, 0, sizeof(ifr)); os_strlcpy(ifr.ifr_name, drv->ifname, sizeof(ifr.ifr_name)); ifr.ifr_data = (void *)&nwid; return ioctl(drv->global->sock, SIOCS80211NWID, &ifr); #else return set80211var(drv, IEEE80211_IOC_SSID, ssid, ssid_len); #endif } static int bsd_get_if_media(void *priv) { struct bsd_driver_data *drv = priv; struct ifmediareq ifmr; os_memset(&ifmr, 0, sizeof(ifmr)); os_strlcpy(ifmr.ifm_name, drv->ifname, sizeof(ifmr.ifm_name)); if (ioctl(drv->global->sock, SIOCGIFMEDIA, &ifmr) < 0) { wpa_printf(MSG_ERROR, "%s: SIOCGIFMEDIA %s", __func__, strerror(errno)); return -1; } return ifmr.ifm_current; } static int bsd_set_if_media(void *priv, int media) { struct bsd_driver_data *drv = priv; struct ifreq ifr; os_memset(&ifr, 0, sizeof(ifr)); os_strlcpy(ifr.ifr_name, drv->ifname, sizeof(ifr.ifr_name)); ifr.ifr_media = media; if (ioctl(drv->global->sock, SIOCSIFMEDIA, &ifr) < 0) { wpa_printf(MSG_ERROR, "%s: SIOCSIFMEDIA %s", __func__, strerror(errno)); return -1; } return 0; } static int bsd_set_mediaopt(void *priv, uint32_t mask, uint32_t mode) { int media = bsd_get_if_media(priv); if (media < 0) return -1; media &= ~mask; media |= mode; if (bsd_set_if_media(priv, media) < 0) return -1; return 0; } static int bsd_del_key(void *priv, const u8 *addr, int key_idx) { struct ieee80211req_del_key wk; os_memset(&wk, 0, sizeof(wk)); if (addr == NULL) { wpa_printf(MSG_DEBUG, "%s: key_idx=%d", __func__, key_idx); wk.idk_keyix = key_idx; } else { wpa_printf(MSG_DEBUG, "%s: addr=" MACSTR, __func__, MAC2STR(addr)); os_memcpy(wk.idk_macaddr, addr, IEEE80211_ADDR_LEN); wk.idk_keyix = (u_int8_t) IEEE80211_KEYIX_NONE; /* XXX */ } return set80211var(priv, IEEE80211_IOC_DELKEY, &wk, sizeof(wk)); } static int bsd_send_mlme_param(void *priv, const u8 op, const u16 reason, const u8 *addr) { struct ieee80211req_mlme mlme; os_memset(&mlme, 0, sizeof(mlme)); mlme.im_op = op; mlme.im_reason = reason; os_memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN); return set80211var(priv, IEEE80211_IOC_MLME, &mlme, sizeof(mlme)); } static int bsd_ctrl_iface(void *priv, int enable) { struct bsd_driver_data *drv = priv; struct ifreq ifr; os_memset(&ifr, 0, sizeof(ifr)); os_strlcpy(ifr.ifr_name, drv->ifname, sizeof(ifr.ifr_name)); if (ioctl(drv->global->sock, SIOCGIFFLAGS, &ifr) < 0) { wpa_printf(MSG_ERROR, "ioctl[SIOCGIFFLAGS]: %s", strerror(errno)); return -1; } drv->flags = ifr.ifr_flags; if (enable) { if (ifr.ifr_flags & IFF_UP) goto nochange; ifr.ifr_flags |= IFF_UP; } else { if (!(ifr.ifr_flags & IFF_UP)) goto nochange; ifr.ifr_flags &= ~IFF_UP; } if (ioctl(drv->global->sock, SIOCSIFFLAGS, &ifr) < 0) { wpa_printf(MSG_ERROR, "ioctl[SIOCSIFFLAGS]: %s", strerror(errno)); return -1; } wpa_printf(MSG_DEBUG, "%s: if %s (changed) enable %d IFF_UP %d ", __func__, drv->ifname, enable, ((ifr.ifr_flags & IFF_UP) != 0)); drv->flags = ifr.ifr_flags; return 0; nochange: wpa_printf(MSG_DEBUG, "%s: if %s (no change) enable %d IFF_UP %d ", __func__, drv->ifname, enable, ((ifr.ifr_flags & IFF_UP) != 0)); return 0; } static int bsd_set_key(void *priv, struct wpa_driver_set_key_params *params) { struct ieee80211req_key wk; #ifdef IEEE80211_KEY_NOREPLAY struct bsd_driver_data *drv = priv; #endif /* IEEE80211_KEY_NOREPLAY */ enum wpa_alg alg = params->alg; const u8 *addr = params->addr; int key_idx = params->key_idx; int set_tx = params->set_tx; const u8 *seq = params->seq; size_t seq_len = params->seq_len; const u8 *key = params->key; size_t key_len = params->key_len; wpa_printf(MSG_DEBUG, "%s: alg=%d addr=%p key_idx=%d set_tx=%d " "seq_len=%zu key_len=%zu", __func__, alg, addr, key_idx, set_tx, seq_len, key_len); if (alg == WPA_ALG_NONE) { #ifndef HOSTAPD if (addr == NULL || is_broadcast_ether_addr(addr)) return bsd_del_key(priv, NULL, key_idx); else #endif /* HOSTAPD */ return bsd_del_key(priv, addr, key_idx); } os_memset(&wk, 0, sizeof(wk)); switch (alg) { case WPA_ALG_WEP: wk.ik_type = IEEE80211_CIPHER_WEP; break; case WPA_ALG_TKIP: wk.ik_type = IEEE80211_CIPHER_TKIP; break; case WPA_ALG_CCMP: wk.ik_type = IEEE80211_CIPHER_AES_CCM; break; default: wpa_printf(MSG_ERROR, "%s: unknown alg=%d", __func__, alg); return -1; } wk.ik_flags = IEEE80211_KEY_RECV; if (set_tx) wk.ik_flags |= IEEE80211_KEY_XMIT; if (addr == NULL) { os_memset(wk.ik_macaddr, 0xff, IEEE80211_ADDR_LEN); wk.ik_keyix = key_idx; } else { os_memcpy(wk.ik_macaddr, addr, IEEE80211_ADDR_LEN); /* * Deduce whether group/global or unicast key by checking * the address (yech). Note also that we can only mark global * keys default; doing this for a unicast key is an error. */ if (is_broadcast_ether_addr(addr)) { wk.ik_flags |= IEEE80211_KEY_GROUP; wk.ik_keyix = key_idx; } else { wk.ik_keyix = key_idx == 0 ? IEEE80211_KEYIX_NONE : key_idx; } } if (wk.ik_keyix != IEEE80211_KEYIX_NONE && set_tx) wk.ik_flags |= IEEE80211_KEY_DEFAULT; #ifndef HOSTAPD #ifdef IEEE80211_KEY_NOREPLAY /* * Ignore replay failures in IBSS and AHDEMO mode. */ if (drv->opmode == IEEE80211_M_IBSS || drv->opmode == IEEE80211_M_AHDEMO) wk.ik_flags |= IEEE80211_KEY_NOREPLAY; #endif /* IEEE80211_KEY_NOREPLAY */ #endif /* HOSTAPD */ wk.ik_keylen = key_len; if (seq) { #ifdef WORDS_BIGENDIAN /* * wk.ik_keyrsc is in host byte order (big endian), need to * swap it to match with the byte order used in WPA. */ int i; u8 *keyrsc = (u8 *) &wk.ik_keyrsc; for (i = 0; i < seq_len; i++) keyrsc[WPA_KEY_RSC_LEN - i - 1] = seq[i]; #else /* WORDS_BIGENDIAN */ os_memcpy(&wk.ik_keyrsc, seq, seq_len); #endif /* WORDS_BIGENDIAN */ } os_memcpy(wk.ik_keydata, key, key_len); return set80211var(priv, IEEE80211_IOC_WPAKEY, &wk, sizeof(wk)); } static int bsd_configure_wpa(void *priv, struct wpa_bss_params *params) { #ifndef IEEE80211_IOC_APPIE static const char *ciphernames[] = { "WEP", "TKIP", "AES-OCB", "AES-CCM", "CKIP", "NONE" }; int v; switch (params->wpa_group) { case WPA_CIPHER_CCMP: v = IEEE80211_CIPHER_AES_CCM; break; case WPA_CIPHER_TKIP: v = IEEE80211_CIPHER_TKIP; break; case WPA_CIPHER_WEP104: v = IEEE80211_CIPHER_WEP; break; case WPA_CIPHER_WEP40: v = IEEE80211_CIPHER_WEP; break; case WPA_CIPHER_NONE: v = IEEE80211_CIPHER_NONE; break; default: wpa_printf(MSG_INFO, "Unknown group key cipher %u", params->wpa_group); return -1; } wpa_printf(MSG_DEBUG, "%s: group key cipher=%s (%u)", __func__, ciphernames[v], v); if (set80211param(priv, IEEE80211_IOC_MCASTCIPHER, v)) { wpa_printf(MSG_INFO, "Unable to set group key cipher to %u (%s)", v, ciphernames[v]); return -1; } if (v == IEEE80211_CIPHER_WEP) { /* key length is done only for specific ciphers */ v = (params->wpa_group == WPA_CIPHER_WEP104 ? 13 : 5); if (set80211param(priv, IEEE80211_IOC_MCASTKEYLEN, v)) { wpa_printf(MSG_INFO, "Unable to set group key length to %u", v); return -1; } } v = 0; if (params->wpa_pairwise & WPA_CIPHER_CCMP) v |= 1<wpa_pairwise & WPA_CIPHER_TKIP) v |= 1<wpa_pairwise & WPA_CIPHER_NONE) v |= 1<wpa_key_mgmt); if (set80211param(priv, IEEE80211_IOC_KEYMGTALGS, params->wpa_key_mgmt)) { wpa_printf(MSG_INFO, "Unable to set key management algorithms to 0x%x", params->wpa_key_mgmt); return -1; } v = 0; if (params->rsn_preauth) v |= BIT(0); wpa_printf(MSG_DEBUG, "%s: rsn capabilities=0x%x", __func__, params->rsn_preauth); if (set80211param(priv, IEEE80211_IOC_RSNCAPS, v)) { wpa_printf(MSG_INFO, "Unable to set RSN capabilities to 0x%x", v); return -1; } #endif /* IEEE80211_IOC_APPIE */ wpa_printf(MSG_DEBUG, "%s: enable WPA= 0x%x", __func__, params->wpa); if (set80211param(priv, IEEE80211_IOC_WPA, params->wpa)) { wpa_printf(MSG_INFO, "Unable to set WPA to %u", params->wpa); return -1; } return 0; } static int bsd_set_ieee8021x(void *priv, struct wpa_bss_params *params) { wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, params->enabled); if (!params->enabled) { /* XXX restore state */ return set80211param(priv, IEEE80211_IOC_AUTHMODE, IEEE80211_AUTH_AUTO); } if (!params->wpa && !params->ieee802_1x) { wpa_printf(MSG_ERROR, "%s: No 802.1X or WPA enabled", __func__); return -1; } if (params->wpa && bsd_configure_wpa(priv, params) != 0) { wpa_printf(MSG_ERROR, "%s: Failed to configure WPA state", __func__); return -1; } if (set80211param(priv, IEEE80211_IOC_AUTHMODE, (params->wpa ? IEEE80211_AUTH_WPA : IEEE80211_AUTH_8021X))) { wpa_printf(MSG_ERROR, "%s: Failed to enable WPA/802.1X", __func__); return -1; } return bsd_ctrl_iface(priv, 1); } static void bsd_new_sta(void *priv, void *ctx, u8 addr[IEEE80211_ADDR_LEN]) { struct ieee80211req_wpaie ie; int ielen = 0; u8 *iebuf = NULL; /* * Fetch and validate any negotiated WPA/RSN parameters. */ memset(&ie, 0, sizeof(ie)); memcpy(ie.wpa_macaddr, addr, IEEE80211_ADDR_LEN); if (get80211var(priv, IEEE80211_IOC_WPAIE, &ie, sizeof(ie)) < 0) { wpa_printf(MSG_INFO, "Failed to get WPA/RSN information element"); goto no_ie; } iebuf = ie.wpa_ie; ielen = ie.wpa_ie[1]; if (ielen == 0) iebuf = NULL; else ielen += 2; no_ie: drv_event_assoc(ctx, addr, iebuf, ielen, 0); } static int bsd_send_eapol(void *priv, const u8 *addr, const u8 *data, size_t data_len, int encrypt, const u8 *own_addr, u32 flags) { struct bsd_driver_data *drv = priv; wpa_hexdump(MSG_MSGDUMP, "TX EAPOL", data, data_len); return l2_packet_send(drv->sock_xmit, addr, ETH_P_EAPOL, data, data_len); } static int bsd_set_freq(void *priv, struct hostapd_freq_params *freq) { struct bsd_driver_data *drv = priv; #ifdef SIOCS80211CHANNEL struct ieee80211chanreq creq; #endif /* SIOCS80211CHANNEL */ u32 mode; int channel = freq->channel; if (channel < 14) { mode = freq->ht_enabled ? IFM_IEEE80211_11NG : IFM_IEEE80211_11G; } else if (channel == 14) { mode = IFM_IEEE80211_11B; } else { mode = freq->ht_enabled ? IFM_IEEE80211_11NA : IFM_IEEE80211_11A; } if (bsd_set_mediaopt(drv, IFM_MMASK, mode) < 0) { wpa_printf(MSG_ERROR, "%s: failed to set modulation mode", __func__); return -1; } #ifdef SIOCS80211CHANNEL os_memset(&creq, 0, sizeof(creq)); os_strlcpy(creq.i_name, drv->ifname, sizeof(creq.i_name)); creq.i_channel = (u_int16_t)channel; return ioctl(drv->global->sock, SIOCS80211CHANNEL, &creq); #else /* SIOCS80211CHANNEL */ return set80211param(priv, IEEE80211_IOC_CHANNEL, channel); #endif /* SIOCS80211CHANNEL */ } static int bsd_set_opt_ie(void *priv, const u8 *ie, size_t ie_len) { #ifdef IEEE80211_IOC_APPIE wpa_printf(MSG_DEBUG, "%s: set WPA+RSN ie (len %lu)", __func__, (unsigned long)ie_len); return bsd_set80211(priv, IEEE80211_IOC_APPIE, IEEE80211_APPIE_WPA, ie, ie_len); #endif /* IEEE80211_IOC_APPIE */ return 0; } #ifdef SO_RERROR static void bsd_route_overflow(int sock, void *ctx, struct bsd_driver_global *global) { char event_buf[2048]; /* max size of a single route(4) msg */ int n; struct ifaddrs *ifaddrs, *ifa; struct bsd_driver_data *drv; struct sockaddr_dl *sdl; union wpa_event_data event; /* We need to match the system state, so drain the route * socket to avoid stale messages. */ do { n = read(sock, event_buf, sizeof(event_buf)); } while (n != -1 || errno == ENOBUFS); if (getifaddrs(&ifaddrs) == -1) { wpa_printf(MSG_ERROR, "%s getifaddrs() failed: %s", __func__, strerror(errno)); return; } /* add or update existing interfaces */ for (ifa = ifaddrs; ifa != NULL; ifa = ifa->ifa_next) { if (ifa->ifa_addr == NULL || ifa->ifa_addr->sa_family != AF_LINK) continue; sdl = (struct sockaddr_dl *) (void *) ifa->ifa_addr; drv = bsd_get_drvname(global, ifa->ifa_name); if (drv != NULL && (drv->ifindex != sdl->sdl_index || drv->if_removed)) { wpa_printf(MSG_DEBUG, "RTM_IFANNOUNCE: Interface '%s' added", drv->ifname); drv->ifindex = sdl->sdl_index; drv->if_removed = 0; event.interface_status.ievent = EVENT_INTERFACE_ADDED; os_strlcpy(event.interface_status.ifname, ifa->ifa_name, sizeof(event.interface_status.ifname)); wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_STATUS, &event); } if (!drv && (drv = bsd_get_drvindex(global, sdl->sdl_index)) != NULL) { /* Driver name is invalid */ wpa_printf(MSG_DEBUG, "RTM_IFANNOUNCE: Interface '%s' removed", drv->ifname); drv->if_removed = 1; event.interface_status.ievent = EVENT_INTERFACE_REMOVED; os_strlcpy(event.interface_status.ifname, drv->ifname, sizeof(event.interface_status.ifname)); wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_STATUS, &event); } } /* punt missing interfaces and update flags */ dl_list_for_each(drv, &global->ifaces, struct bsd_driver_data, list) { for (ifa = ifaddrs; ifa != NULL; ifa = ifa->ifa_next) { if (ifa->ifa_addr == NULL || ifa->ifa_addr->sa_family != AF_LINK) continue; sdl = (struct sockaddr_dl *) (void *) ifa->ifa_addr; if (os_strcmp(drv->ifname, ifa->ifa_name) == 0) break; } if (ifa == NULL && !drv->if_removed) { wpa_printf(MSG_DEBUG, "RTM_IFANNOUNCE: Interface '%s' removed", drv->ifname); drv->if_removed = 1; event.interface_status.ievent = EVENT_INTERFACE_REMOVED; os_strlcpy(event.interface_status.ifname, drv->ifname, sizeof(event.interface_status.ifname)); wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_STATUS, &event); } if (!ifa) continue; if ((ifa->ifa_flags & IFF_UP) == 0 && (drv->flags & IFF_UP) != 0) { wpa_printf(MSG_DEBUG, "RTM_IFINFO: Interface '%s' DOWN", drv->ifname); wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_DISABLED, NULL); } else if ((ifa->ifa_flags & IFF_UP) != 0 && (drv->flags & IFF_UP) == 0) { wpa_printf(MSG_DEBUG, "RTM_IFINFO: Interface '%s' UP", drv->ifname); wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_ENABLED, NULL); } drv->flags = ifa->ifa_flags; } freeifaddrs(ifaddrs); } #endif /* SO_RERROR */ static void bsd_wireless_event_receive(int sock, void *ctx, void *sock_ctx) { char event_buf[2048]; /* max size of a single route(4) msg */ struct bsd_driver_global *global = sock_ctx; struct bsd_driver_data *drv; struct if_announcemsghdr *ifan; struct if_msghdr *ifm; struct rt_msghdr *rtm; union wpa_event_data event; struct ieee80211_michael_event *mic; struct ieee80211_leave_event *leave; struct ieee80211_join_event *join; int n; n = read(sock, event_buf, sizeof(event_buf)); if (n < 0) { if (errno != EINTR && errno != EAGAIN) wpa_printf(MSG_ERROR, "%s read() failed: %s", __func__, strerror(errno)); #ifdef SO_RERROR if (errno == ENOBUFS) bsd_route_overflow(sock, ctx, sock_ctx); #endif /* SO_RERROR */ return; } rtm = (struct rt_msghdr *) event_buf; if (rtm->rtm_version != RTM_VERSION) { wpa_printf(MSG_DEBUG, "Invalid routing message version=%d", rtm->rtm_version); return; } os_memset(&event, 0, sizeof(event)); switch (rtm->rtm_type) { case RTM_IEEE80211: ifan = (struct if_announcemsghdr *) rtm; drv = bsd_get_drvindex(global, ifan->ifan_index); if (drv == NULL) return; switch (ifan->ifan_what) { case RTM_IEEE80211_ASSOC: case RTM_IEEE80211_REASSOC: if (drv->is_ap) break; wpa_supplicant_event(drv->ctx, EVENT_ASSOC, NULL); break; case RTM_IEEE80211_DISASSOC: if (drv->is_ap) break; wpa_supplicant_event(drv->ctx, EVENT_DISASSOC, NULL); break; case RTM_IEEE80211_SCAN: if (drv->is_ap) break; wpa_supplicant_event(drv->ctx, EVENT_SCAN_RESULTS, NULL); break; case RTM_IEEE80211_LEAVE: leave = (struct ieee80211_leave_event *) &ifan[1]; drv_event_disassoc(drv->ctx, leave->iev_addr); break; case RTM_IEEE80211_JOIN: #ifdef RTM_IEEE80211_REJOIN case RTM_IEEE80211_REJOIN: #endif join = (struct ieee80211_join_event *) &ifan[1]; bsd_new_sta(drv, drv->ctx, join->iev_addr); break; case RTM_IEEE80211_REPLAY: /* ignore */ break; case RTM_IEEE80211_MICHAEL: mic = (struct ieee80211_michael_event *) &ifan[1]; wpa_printf(MSG_DEBUG, "Michael MIC failure wireless event: " "keyix=%u src_addr=" MACSTR, mic->iev_keyix, MAC2STR(mic->iev_src)); os_memset(&event, 0, sizeof(event)); event.michael_mic_failure.unicast = !IEEE80211_IS_MULTICAST(mic->iev_dst); event.michael_mic_failure.src = mic->iev_src; wpa_supplicant_event(drv->ctx, EVENT_MICHAEL_MIC_FAILURE, &event); break; } break; case RTM_IFANNOUNCE: ifan = (struct if_announcemsghdr *) rtm; switch (ifan->ifan_what) { case IFAN_DEPARTURE: drv = bsd_get_drvindex(global, ifan->ifan_index); if (drv) drv->if_removed = 1; event.interface_status.ievent = EVENT_INTERFACE_REMOVED; break; case IFAN_ARRIVAL: drv = bsd_get_drvname(global, ifan->ifan_name); if (drv) { drv->ifindex = ifan->ifan_index; drv->if_removed = 0; } event.interface_status.ievent = EVENT_INTERFACE_ADDED; break; default: wpa_printf(MSG_DEBUG, "RTM_IFANNOUNCE: unknown action"); return; } wpa_printf(MSG_DEBUG, "RTM_IFANNOUNCE: Interface '%s' %s", ifan->ifan_name, ifan->ifan_what == IFAN_DEPARTURE ? "removed" : "added"); os_strlcpy(event.interface_status.ifname, ifan->ifan_name, sizeof(event.interface_status.ifname)); if (drv) { wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_STATUS, &event); /* * Set ifindex to zero after sending the event as the * event might query the driver to ensure a match. */ if (ifan->ifan_what == IFAN_DEPARTURE) drv->ifindex = 0; } else { wpa_supplicant_event_global(global->ctx, EVENT_INTERFACE_STATUS, &event); } break; case RTM_IFINFO: ifm = (struct if_msghdr *) rtm; drv = bsd_get_drvindex(global, ifm->ifm_index); if (drv == NULL) return; if (((ifm->ifm_flags & IFF_UP) == 0 || (ifm->ifm_flags & IFF_RUNNING) == 0) && (drv->flags & IFF_UP) != 0 && (drv->flags & IFF_RUNNING) != 0) { wpa_printf(MSG_DEBUG, "RTM_IFINFO: Interface '%s' DOWN", drv->ifname); wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_DISABLED, NULL); } else if ((ifm->ifm_flags & IFF_UP) != 0 && (ifm->ifm_flags & IFF_RUNNING) != 0 && ((drv->flags & IFF_UP) == 0 || (drv->flags & IFF_RUNNING) == 0)) { wpa_printf(MSG_DEBUG, "RTM_IFINFO: Interface '%s' UP", drv->ifname); wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_ENABLED, NULL); } drv->flags = ifm->ifm_flags; break; } } #ifdef HOSTAPD /* * Avoid conflicts with hostapd definitions by undefining couple of defines * from net80211 header files. */ #undef RSN_VERSION #undef WPA_VERSION #undef WPA_OUI_TYPE static int bsd_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr, u16 reason_code); static const char * ether_sprintf(const u8 *addr) { static char buf[sizeof(MACSTR)]; if (addr != NULL) snprintf(buf, sizeof(buf), MACSTR, MAC2STR(addr)); else snprintf(buf, sizeof(buf), MACSTR, 0,0,0,0,0,0); return buf; } static int bsd_set_privacy(void *priv, int enabled) { wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, enabled); return set80211param(priv, IEEE80211_IOC_PRIVACY, enabled); } static int bsd_get_seqnum(const char *ifname, void *priv, const u8 *addr, int idx, u8 *seq) { struct ieee80211req_key wk; wpa_printf(MSG_DEBUG, "%s: addr=%s idx=%d", __func__, ether_sprintf(addr), idx); memset(&wk, 0, sizeof(wk)); if (addr == NULL) memset(wk.ik_macaddr, 0xff, IEEE80211_ADDR_LEN); else memcpy(wk.ik_macaddr, addr, IEEE80211_ADDR_LEN); wk.ik_keyix = idx; if (get80211var(priv, IEEE80211_IOC_WPAKEY, &wk, sizeof(wk)) < 0) { wpa_printf(MSG_INFO, "Failed to get encryption"); return -1; } #ifdef WORDS_BIGENDIAN { /* * wk.ik_keytsc is in host byte order (big endian), need to * swap it to match with the byte order used in WPA. */ int i; u8 tmp[WPA_KEY_RSC_LEN]; memcpy(tmp, &wk.ik_keytsc, sizeof(wk.ik_keytsc)); for (i = 0; i < WPA_KEY_RSC_LEN; i++) { seq[i] = tmp[WPA_KEY_RSC_LEN - i - 1]; } } #else /* WORDS_BIGENDIAN */ memcpy(seq, &wk.ik_keytsc, sizeof(wk.ik_keytsc)); #endif /* WORDS_BIGENDIAN */ return 0; } static int bsd_flush(void *priv) { u8 allsta[IEEE80211_ADDR_LEN]; memset(allsta, 0xff, IEEE80211_ADDR_LEN); return bsd_sta_deauth(priv, NULL, allsta, IEEE80211_REASON_AUTH_LEAVE); } static int bsd_read_sta_driver_data(void *priv, struct hostap_sta_driver_data *data, const u8 *addr) { struct ieee80211req_sta_stats stats; memcpy(stats.is_u.macaddr, addr, IEEE80211_ADDR_LEN); if (get80211var(priv, IEEE80211_IOC_STA_STATS, &stats, sizeof(stats)) > 0) { /* XXX? do packets counts include non-data frames? */ data->rx_packets = stats.is_stats.ns_rx_data; data->rx_bytes = stats.is_stats.ns_rx_bytes; data->tx_packets = stats.is_stats.ns_tx_data; data->tx_bytes = stats.is_stats.ns_tx_bytes; } return 0; } static int bsd_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr, u16 reason_code) { return bsd_send_mlme_param(priv, IEEE80211_MLME_DEAUTH, reason_code, addr); } static int bsd_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr, u16 reason_code) { return bsd_send_mlme_param(priv, IEEE80211_MLME_DISASSOC, reason_code, addr); } static void handle_read(void *ctx, const u8 *src_addr, const u8 *buf, size_t len) { struct bsd_driver_data *drv = ctx; drv_event_eapol_rx(drv->ctx, src_addr, buf, len); } static void * bsd_init(struct hostapd_data *hapd, struct wpa_init_params *params) { struct bsd_driver_data *drv; drv = os_zalloc(sizeof(struct bsd_driver_data)); if (drv == NULL) { wpa_printf(MSG_ERROR, "Could not allocate memory for bsd driver data"); return NULL; } drv->ifindex = if_nametoindex(params->ifname); if (drv->ifindex == 0) { wpa_printf(MSG_DEBUG, "%s: interface %s does not exist", __func__, params->ifname); goto bad; } drv->ctx = hapd; drv->is_ap = 1; drv->global = params->global_priv; os_strlcpy(drv->ifname, params->ifname, sizeof(drv->ifname)); drv->sock_xmit = l2_packet_init(drv->ifname, NULL, ETH_P_EAPOL, handle_read, drv, 0); if (drv->sock_xmit == NULL) goto bad; if (l2_packet_get_own_addr(drv->sock_xmit, params->own_addr)) goto bad; /* mark down during setup */ if (bsd_ctrl_iface(drv, 0) < 0) goto bad; if (bsd_set_mediaopt(drv, IFM_OMASK, IFM_IEEE80211_HOSTAP) < 0) { wpa_printf(MSG_ERROR, "%s: failed to set operation mode", __func__); goto bad; } dl_list_add(&drv->global->ifaces, &drv->list); return drv; bad: if (drv->sock_xmit != NULL) l2_packet_deinit(drv->sock_xmit); os_free(drv); return NULL; } static void bsd_deinit(void *priv) { struct bsd_driver_data *drv = priv; if (drv->ifindex != 0) bsd_ctrl_iface(drv, 0); if (drv->sock_xmit != NULL) l2_packet_deinit(drv->sock_xmit); os_free(drv); } static int bsd_set_sta_authorized(void *priv, const u8 *addr, unsigned int total_flags, unsigned int flags_or, unsigned int flags_and) { int authorized = -1; /* For now, only support setting Authorized flag */ if (flags_or & WPA_STA_AUTHORIZED) authorized = 1; if (!(flags_and & WPA_STA_AUTHORIZED)) authorized = 0; if (authorized < 0) return 0; return bsd_send_mlme_param(priv, authorized ? IEEE80211_MLME_AUTHORIZE : IEEE80211_MLME_UNAUTHORIZE, 0, addr); } #else /* HOSTAPD */ static int get80211param(struct bsd_driver_data *drv, int op) { struct ieee80211req ireq; if (bsd_get80211(drv, &ireq, op, NULL, 0) < 0) return -1; return ireq.i_val; } static int wpa_driver_bsd_get_bssid(void *priv, u8 *bssid) { struct bsd_driver_data *drv = priv; #ifdef SIOCG80211BSSID struct ieee80211_bssid bs; os_strlcpy(bs.i_name, drv->ifname, sizeof(bs.i_name)); if (ioctl(drv->global->sock, SIOCG80211BSSID, &bs) < 0) return -1; os_memcpy(bssid, bs.i_bssid, sizeof(bs.i_bssid)); return 0; #else return get80211var(drv, IEEE80211_IOC_BSSID, bssid, IEEE80211_ADDR_LEN) < 0 ? -1 : 0; #endif } static int wpa_driver_bsd_get_ssid(void *priv, u8 *ssid) { struct bsd_driver_data *drv = priv; return bsd_get_ssid(drv, ssid, 0); } static int wpa_driver_bsd_set_wpa_ie(struct bsd_driver_data *drv, const u8 *wpa_ie, size_t wpa_ie_len) { #ifdef IEEE80211_IOC_APPIE return bsd_set_opt_ie(drv, wpa_ie, wpa_ie_len); #else /* IEEE80211_IOC_APPIE */ return set80211var(drv, IEEE80211_IOC_OPTIE, wpa_ie, wpa_ie_len); #endif /* IEEE80211_IOC_APPIE */ } static int wpa_driver_bsd_set_wpa_internal(void *priv, int wpa, int privacy) { int ret = 0; wpa_printf(MSG_DEBUG, "%s: wpa=%d privacy=%d", __func__, wpa, privacy); if (!wpa && wpa_driver_bsd_set_wpa_ie(priv, NULL, 0) < 0) ret = -1; if (set80211param(priv, IEEE80211_IOC_PRIVACY, privacy) < 0) ret = -1; if (set80211param(priv, IEEE80211_IOC_WPA, wpa) < 0) ret = -1; return ret; } static int wpa_driver_bsd_set_wpa(void *priv, int enabled) { wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, enabled); return wpa_driver_bsd_set_wpa_internal(priv, enabled ? 3 : 0, enabled); } static int wpa_driver_bsd_set_countermeasures(void *priv, int enabled) { wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, enabled); return set80211param(priv, IEEE80211_IOC_COUNTERMEASURES, enabled); } static int wpa_driver_bsd_set_drop_unencrypted(void *priv, int enabled) { wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, enabled); return set80211param(priv, IEEE80211_IOC_DROPUNENCRYPTED, enabled); } static int wpa_driver_bsd_deauthenticate(void *priv, const u8 *addr, u16 reason_code) { return bsd_send_mlme_param(priv, IEEE80211_MLME_DEAUTH, reason_code, addr); } static int wpa_driver_bsd_set_auth_alg(void *priv, int auth_alg) { int authmode; if ((auth_alg & WPA_AUTH_ALG_OPEN) && (auth_alg & WPA_AUTH_ALG_SHARED)) authmode = IEEE80211_AUTH_AUTO; else if (auth_alg & WPA_AUTH_ALG_SHARED) authmode = IEEE80211_AUTH_SHARED; else authmode = IEEE80211_AUTH_OPEN; return set80211param(priv, IEEE80211_IOC_AUTHMODE, authmode); } static void handle_read(void *ctx, const u8 *src_addr, const u8 *buf, size_t len) { struct bsd_driver_data *drv = ctx; drv_event_eapol_rx(drv->ctx, src_addr, buf, len); } static int wpa_driver_bsd_set_rsn_wpa_ie(struct bsd_driver_data * drv, struct wpa_driver_associate_params *params, const u8 *ie) { int privacy; size_t ie_len = ie[1] ? ie[1] + 2 : 0; /* XXX error handling is wrong but unclear what to do... */ if (wpa_driver_bsd_set_wpa_ie(drv, ie, ie_len) < 0) return -1; privacy = !(params->pairwise_suite == WPA_CIPHER_NONE && params->group_suite == WPA_CIPHER_NONE && params->key_mgmt_suite == WPA_KEY_MGMT_NONE); wpa_printf(MSG_DEBUG, "%s: set PRIVACY %u", __func__, privacy); if (set80211param(drv, IEEE80211_IOC_PRIVACY, privacy) < 0) return -1; if (ie_len && set80211param(drv, IEEE80211_IOC_WPA, ie[0] == WLAN_EID_RSN ? 2 : 1) < 0) return -1; return 0; } static int wpa_driver_bsd_associate(void *priv, struct wpa_driver_associate_params *params) { struct bsd_driver_data *drv = priv; struct ieee80211req_mlme mlme; u32 mode; int ret = 0; const u8 *wpa_ie, *rsn_ie; wpa_printf(MSG_DEBUG, "%s: ssid '%.*s' wpa ie len %u pairwise %u group %u key mgmt %u" , __func__ , (unsigned int) params->ssid_len, params->ssid , (unsigned int) params->wpa_ie_len , params->pairwise_suite , params->group_suite , params->key_mgmt_suite ); switch (params->mode) { case IEEE80211_MODE_INFRA: mode = 0 /* STA */; break; case IEEE80211_MODE_IBSS: #if 0 mode = IFM_IEEE80211_IBSS; #endif mode = IFM_IEEE80211_ADHOC; break; case IEEE80211_MODE_AP: mode = IFM_IEEE80211_HOSTAP; break; default: wpa_printf(MSG_ERROR, "%s: unknown operation mode", __func__); return -1; } if (bsd_set_mediaopt(drv, IFM_OMASK, mode) < 0) { wpa_printf(MSG_ERROR, "%s: failed to set operation mode", __func__); return -1; } if (params->mode == IEEE80211_MODE_AP) { drv->sock_xmit = l2_packet_init(drv->ifname, NULL, ETH_P_EAPOL, handle_read, drv, 0); if (drv->sock_xmit == NULL) return -1; drv->is_ap = 1; return 0; } if (wpa_driver_bsd_set_drop_unencrypted(drv, params->drop_unencrypted) < 0) ret = -1; if (wpa_driver_bsd_set_auth_alg(drv, params->auth_alg) < 0) ret = -1; if (params->wpa_ie_len) { rsn_ie = get_ie(params->wpa_ie, params->wpa_ie_len, WLAN_EID_RSN); if (rsn_ie) { if (wpa_driver_bsd_set_rsn_wpa_ie(drv, params, rsn_ie) < 0) return -1; } else { wpa_ie = get_vendor_ie(params->wpa_ie, params->wpa_ie_len, WPA_IE_VENDOR_TYPE); if (wpa_ie) { if (wpa_driver_bsd_set_rsn_wpa_ie(drv, params, wpa_ie) < 0) return -1; } } } /* * NB: interface must be marked UP for association * or scanning (ap_scan=2) */ if (bsd_ctrl_iface(drv, 1) < 0) return -1; os_memset(&mlme, 0, sizeof(mlme)); mlme.im_op = IEEE80211_MLME_ASSOC; if (params->ssid != NULL) os_memcpy(mlme.im_ssid, params->ssid, params->ssid_len); mlme.im_ssid_len = params->ssid_len; if (params->bssid != NULL) os_memcpy(mlme.im_macaddr, params->bssid, IEEE80211_ADDR_LEN); if (set80211var(drv, IEEE80211_IOC_MLME, &mlme, sizeof(mlme)) < 0) return -1; return ret; } static int wpa_driver_bsd_scan(void *priv, struct wpa_driver_scan_params *params) { struct bsd_driver_data *drv = priv; #ifdef IEEE80211_IOC_SCAN_MAX_SSID struct ieee80211_scan_req sr; int i; #endif /* IEEE80211_IOC_SCAN_MAX_SSID */ if (bsd_set_mediaopt(drv, IFM_OMASK, 0 /* STA */) < 0) { wpa_printf(MSG_ERROR, "%s: failed to set operation mode", __func__); return -1; } if (set80211param(drv, IEEE80211_IOC_ROAMING, IEEE80211_ROAMING_MANUAL) < 0) { wpa_printf(MSG_ERROR, "%s: failed to set " "wpa_supplicant-based roaming: %s", __func__, strerror(errno)); return -1; } if (wpa_driver_bsd_set_wpa(drv, 1) < 0) { wpa_printf(MSG_ERROR, "%s: failed to set wpa: %s", __func__, strerror(errno)); return -1; } /* NB: interface must be marked UP to do a scan */ if (bsd_ctrl_iface(drv, 1) < 0) return -1; #ifdef IEEE80211_IOC_SCAN_MAX_SSID os_memset(&sr, 0, sizeof(sr)); sr.sr_flags = IEEE80211_IOC_SCAN_ACTIVE | IEEE80211_IOC_SCAN_ONCE | IEEE80211_IOC_SCAN_NOJOIN; sr.sr_duration = IEEE80211_IOC_SCAN_FOREVER; if (params->num_ssids > 0) { sr.sr_nssid = params->num_ssids; #if 0 /* Boundary check is done by upper layer */ if (sr.sr_nssid > IEEE80211_IOC_SCAN_MAX_SSID) sr.sr_nssid = IEEE80211_IOC_SCAN_MAX_SSID; #endif /* NB: check scan cache first */ sr.sr_flags |= IEEE80211_IOC_SCAN_CHECK; } for (i = 0; i < sr.sr_nssid; i++) { sr.sr_ssid[i].len = params->ssids[i].ssid_len; os_memcpy(sr.sr_ssid[i].ssid, params->ssids[i].ssid, sr.sr_ssid[i].len); } /* NB: net80211 delivers a scan complete event so no need to poll */ return set80211var(drv, IEEE80211_IOC_SCAN_REQ, &sr, sizeof(sr)); #else /* IEEE80211_IOC_SCAN_MAX_SSID */ /* set desired ssid before scan */ if (bsd_set_ssid(drv, params->ssids[0].ssid, params->ssids[0].ssid_len) < 0) return -1; /* NB: net80211 delivers a scan complete event so no need to poll */ return set80211param(drv, IEEE80211_IOC_SCAN_REQ, 0); #endif /* IEEE80211_IOC_SCAN_MAX_SSID */ } static void wpa_driver_bsd_add_scan_entry(struct wpa_scan_results *res, struct ieee80211req_scan_result *sr) { struct wpa_scan_res *result, **tmp; size_t extra_len; u8 *pos; extra_len = 2 + sr->isr_ssid_len; extra_len += 2 + sr->isr_nrates; extra_len += 3; /* ERP IE */ extra_len += sr->isr_ie_len; result = os_zalloc(sizeof(*result) + extra_len); if (result == NULL) return; os_memcpy(result->bssid, sr->isr_bssid, ETH_ALEN); result->freq = sr->isr_freq; result->beacon_int = sr->isr_intval; result->caps = sr->isr_capinfo; result->qual = sr->isr_rssi; result->noise = sr->isr_noise; #ifdef __FreeBSD__ /* * the rssi value reported by the kernel is in 0.5dB steps relative to * the reported noise floor. see ieee80211_node.h for details. */ result->level = sr->isr_rssi / 2 + sr->isr_noise; #else result->level = sr->isr_rssi; #endif pos = (u8 *)(result + 1); *pos++ = WLAN_EID_SSID; *pos++ = sr->isr_ssid_len; os_memcpy(pos, sr + 1, sr->isr_ssid_len); pos += sr->isr_ssid_len; /* * Deal all rates as supported rate. * Because net80211 doesn't report extended supported rate or not. */ *pos++ = WLAN_EID_SUPP_RATES; *pos++ = sr->isr_nrates; os_memcpy(pos, sr->isr_rates, sr->isr_nrates); pos += sr->isr_nrates; *pos++ = WLAN_EID_ERP_INFO; *pos++ = 1; *pos++ = sr->isr_erp; #if defined(__DragonFly__) || defined(__FreeBSD__) || defined(__FreeBSD_kernel__) os_memcpy(pos, (u8 *)(sr + 1) + sr->isr_ssid_len + sr->isr_meshid_len, sr->isr_ie_len); #else os_memcpy(pos, (u8 *)(sr + 1) + sr->isr_ssid_len, sr->isr_ie_len); #endif pos += sr->isr_ie_len; result->ie_len = pos - (u8 *)(result + 1); tmp = os_realloc_array(res->res, res->num + 1, sizeof(struct wpa_scan_res *)); if (tmp == NULL) { os_free(result); return; } tmp[res->num++] = result; res->res = tmp; } struct wpa_scan_results * wpa_driver_bsd_get_scan_results2(void *priv) { struct ieee80211req_scan_result *sr; struct wpa_scan_results *res; int len, rest; uint8_t buf[24*1024], *pos; len = get80211var(priv, IEEE80211_IOC_SCAN_RESULTS, buf, 24*1024); if (len < 0) return NULL; res = os_zalloc(sizeof(*res)); if (res == NULL) return NULL; pos = buf; rest = len; while (rest >= sizeof(struct ieee80211req_scan_result)) { sr = (struct ieee80211req_scan_result *)pos; wpa_driver_bsd_add_scan_entry(res, sr); pos += sr->isr_len; rest -= sr->isr_len; } wpa_printf(MSG_DEBUG, "Received %d bytes of scan results (%lu BSSes)", len, (unsigned long)res->num); return res; } static int wpa_driver_bsd_capa(struct bsd_driver_data *drv) { #ifdef IEEE80211_IOC_DEVCAPS /* kernel definitions copied from net80211/ieee80211_var.h */ #define IEEE80211_CIPHER_WEP 0 #define IEEE80211_CIPHER_TKIP 1 #define IEEE80211_CIPHER_AES_CCM 3 #define IEEE80211_CRYPTO_WEP (1<capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA | WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK; if (devcaps.dc_drivercaps & IEEE80211_C_WPA2) drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA2 | WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK; #ifdef __FreeBSD__ drv->capa.enc |= WPA_DRIVER_CAPA_ENC_WEP40 | WPA_DRIVER_CAPA_ENC_WEP104 | WPA_DRIVER_CAPA_ENC_TKIP | WPA_DRIVER_CAPA_ENC_CCMP; #else /* * XXX * FreeBSD exports hardware cryptocaps. These have no meaning for wpa * since net80211 performs software crypto. */ if (devcaps.dc_cryptocaps & IEEE80211_CRYPTO_WEP) drv->capa.enc |= WPA_DRIVER_CAPA_ENC_WEP40 | WPA_DRIVER_CAPA_ENC_WEP104; if (devcaps.dc_cryptocaps & IEEE80211_CRYPTO_TKIP) drv->capa.enc |= WPA_DRIVER_CAPA_ENC_TKIP; if (devcaps.dc_cryptocaps & IEEE80211_CRYPTO_AES_CCM) drv->capa.enc |= WPA_DRIVER_CAPA_ENC_CCMP; #endif if (devcaps.dc_drivercaps & IEEE80211_C_HOSTAP) drv->capa.flags |= WPA_DRIVER_FLAGS_AP; #undef IEEE80211_CIPHER_WEP #undef IEEE80211_CIPHER_TKIP #undef IEEE80211_CIPHER_AES_CCM #undef IEEE80211_CRYPTO_WEP #undef IEEE80211_CRYPTO_TKIP #undef IEEE80211_CRYPTO_AES_CCM #undef IEEE80211_C_HOSTAP #undef IEEE80211_C_WPA1 #undef IEEE80211_C_WPA2 #else /* IEEE80211_IOC_DEVCAPS */ /* For now, assume TKIP, CCMP, WPA, WPA2 are supported */ drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA | WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK | WPA_DRIVER_CAPA_KEY_MGMT_WPA2 | WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK; drv->capa.enc = WPA_DRIVER_CAPA_ENC_WEP40 | WPA_DRIVER_CAPA_ENC_WEP104 | WPA_DRIVER_CAPA_ENC_TKIP | WPA_DRIVER_CAPA_ENC_CCMP; drv->capa.flags |= WPA_DRIVER_FLAGS_AP; #endif /* IEEE80211_IOC_DEVCAPS */ #ifdef IEEE80211_IOC_SCAN_MAX_SSID drv->capa.max_scan_ssids = IEEE80211_IOC_SCAN_MAX_SSID; #else /* IEEE80211_IOC_SCAN_MAX_SSID */ drv->capa.max_scan_ssids = 1; #endif /* IEEE80211_IOC_SCAN_MAX_SSID */ drv->capa.auth = WPA_DRIVER_AUTH_OPEN | WPA_DRIVER_AUTH_SHARED | WPA_DRIVER_AUTH_LEAP; return 0; } static enum ieee80211_opmode get80211opmode(struct bsd_driver_data *drv) { struct ifmediareq ifmr; (void) memset(&ifmr, 0, sizeof(ifmr)); (void) os_strlcpy(ifmr.ifm_name, drv->ifname, sizeof(ifmr.ifm_name)); if (ioctl(drv->global->sock, SIOCGIFMEDIA, (caddr_t)&ifmr) >= 0) { if (ifmr.ifm_current & IFM_IEEE80211_ADHOC) { if (ifmr.ifm_current & IFM_FLAG0) return IEEE80211_M_AHDEMO; else return IEEE80211_M_IBSS; } if (ifmr.ifm_current & IFM_IEEE80211_HOSTAP) return IEEE80211_M_HOSTAP; if (ifmr.ifm_current & IFM_IEEE80211_IBSS) return IEEE80211_M_IBSS; if (ifmr.ifm_current & IFM_IEEE80211_MONITOR) return IEEE80211_M_MONITOR; #ifdef IEEE80211_M_MBSS if (ifmr.ifm_current & IFM_IEEE80211_MBSS) return IEEE80211_M_MBSS; #endif /* IEEE80211_M_MBSS */ } return IEEE80211_M_STA; } static void * wpa_driver_bsd_init(void *ctx, const char *ifname, void *priv) { #define GETPARAM(drv, param, v) \ (((v) = get80211param(drv, param)) != -1) struct bsd_driver_data *drv; int i; drv = os_zalloc(sizeof(*drv)); if (drv == NULL) return NULL; drv->ifindex = if_nametoindex(ifname); if (drv->ifindex == 0) { wpa_printf(MSG_DEBUG, "%s: interface %s does not exist", __func__, ifname); goto fail; } drv->ctx = ctx; drv->global = priv; os_strlcpy(drv->ifname, ifname, sizeof(drv->ifname)); /* Set the interface as removed until proven to work. */ drv->if_removed = 1; if (!GETPARAM(drv, IEEE80211_IOC_ROAMING, drv->prev_roaming)) { wpa_printf(MSG_DEBUG, "%s: failed to get roaming state: %s", __func__, strerror(errno)); goto fail; } if (!GETPARAM(drv, IEEE80211_IOC_PRIVACY, drv->prev_privacy)) { wpa_printf(MSG_DEBUG, "%s: failed to get privacy state: %s", __func__, strerror(errno)); goto fail; } if (!GETPARAM(drv, IEEE80211_IOC_WPA, drv->prev_wpa)) { wpa_printf(MSG_DEBUG, "%s: failed to get wpa state: %s", __func__, strerror(errno)); goto fail; } if (wpa_driver_bsd_capa(drv)) goto fail; /* Update per interface supported AKMs */ for (i = 0; i < WPA_IF_MAX; i++) drv->capa.key_mgmt_iftype[i] = drv->capa.key_mgmt; /* Down interface during setup. */ if (bsd_ctrl_iface(drv, 0) < 0) goto fail; /* Proven to work, lets go! */ drv->if_removed = 0; drv->opmode = get80211opmode(drv); dl_list_add(&drv->global->ifaces, &drv->list); return drv; fail: os_free(drv); return NULL; #undef GETPARAM } static void wpa_driver_bsd_deinit(void *priv) { struct bsd_driver_data *drv = priv; if (drv->ifindex != 0 && !drv->if_removed) { wpa_driver_bsd_set_wpa(drv, 0); /* NB: mark interface down */ bsd_ctrl_iface(drv, 0); wpa_driver_bsd_set_wpa_internal(drv, drv->prev_wpa, drv->prev_privacy); if (set80211param(drv, IEEE80211_IOC_ROAMING, drv->prev_roaming) < 0) wpa_printf(MSG_DEBUG, "%s: failed to restore roaming state", __func__); } if (drv->sock_xmit != NULL) l2_packet_deinit(drv->sock_xmit); dl_list_del(&drv->list); os_free(drv); } static int wpa_driver_bsd_get_capa(void *priv, struct wpa_driver_capa *capa) { struct bsd_driver_data *drv = priv; os_memcpy(capa, &drv->capa, sizeof(*capa)); return 0; } #endif /* HOSTAPD */ static void * bsd_global_init(void *ctx) { struct bsd_driver_global *global; #if defined(RO_MSGFILTER) || defined(ROUTE_MSGFILTER) unsigned char msgfilter[] = { RTM_IEEE80211, RTM_IFINFO, RTM_IFANNOUNCE, }; #endif #ifdef ROUTE_MSGFILTER unsigned int i, msgfilter_mask; #endif global = os_zalloc(sizeof(*global)); if (global == NULL) return NULL; global->ctx = ctx; dl_list_init(&global->ifaces); global->sock = socket(PF_INET, SOCK_DGRAM | SOCK_CLOEXEC, 0); if (global->sock < 0) { wpa_printf(MSG_ERROR, "socket[PF_INET,SOCK_DGRAM]: %s", strerror(errno)); goto fail1; } global->route = socket(PF_ROUTE, SOCK_RAW | SOCK_CLOEXEC | SOCK_NONBLOCK, 0); if (global->route < 0) { wpa_printf(MSG_ERROR, "socket[PF_ROUTE,SOCK_RAW]: %s", strerror(errno)); goto fail; } #if defined(RO_MSGFILTER) if (setsockopt(global->route, PF_ROUTE, RO_MSGFILTER, &msgfilter, sizeof(msgfilter)) < 0) wpa_printf(MSG_ERROR, "socket[PF_ROUTE,RO_MSGFILTER]: %s", strerror(errno)); #elif defined(ROUTE_MSGFILTER) msgfilter_mask = 0; for (i = 0; i < (sizeof(msgfilter) / sizeof(msgfilter[0])); i++) msgfilter_mask |= ROUTE_FILTER(msgfilter[i]); if (setsockopt(global->route, PF_ROUTE, ROUTE_MSGFILTER, &msgfilter_mask, sizeof(msgfilter_mask)) < 0) wpa_printf(MSG_ERROR, "socket[PF_ROUTE,ROUTE_MSGFILTER]: %s", strerror(errno)); #endif eloop_register_read_sock(global->route, bsd_wireless_event_receive, NULL, global); return global; fail: close(global->sock); fail1: os_free(global); return NULL; } static void bsd_global_deinit(void *priv) { struct bsd_driver_global *global = priv; eloop_unregister_read_sock(global->route); (void) close(global->route); (void) close(global->sock); os_free(global); } const struct wpa_driver_ops wpa_driver_bsd_ops = { .name = "bsd", .desc = "BSD 802.11 support", .global_init = bsd_global_init, .global_deinit = bsd_global_deinit, #ifdef HOSTAPD .hapd_init = bsd_init, .hapd_deinit = bsd_deinit, .set_privacy = bsd_set_privacy, .get_seqnum = bsd_get_seqnum, .flush = bsd_flush, .read_sta_data = bsd_read_sta_driver_data, .sta_disassoc = bsd_sta_disassoc, .sta_deauth = bsd_sta_deauth, .sta_set_flags = bsd_set_sta_authorized, #else /* HOSTAPD */ .init2 = wpa_driver_bsd_init, .deinit = wpa_driver_bsd_deinit, .get_bssid = wpa_driver_bsd_get_bssid, .get_ssid = wpa_driver_bsd_get_ssid, .set_countermeasures = wpa_driver_bsd_set_countermeasures, .scan2 = wpa_driver_bsd_scan, .get_scan_results2 = wpa_driver_bsd_get_scan_results2, .deauthenticate = wpa_driver_bsd_deauthenticate, .associate = wpa_driver_bsd_associate, .get_capa = wpa_driver_bsd_get_capa, #endif /* HOSTAPD */ .set_freq = bsd_set_freq, .set_key = bsd_set_key, .set_ieee8021x = bsd_set_ieee8021x, .hapd_set_ssid = bsd_set_ssid, .hapd_get_ssid = bsd_get_ssid, .hapd_send_eapol = bsd_send_eapol, .set_generic_elem = bsd_set_opt_ie, };