nl80211: Send EAPOL frames as QoS data frames for QoS aware clients
[mech_eap.git] / src / drivers / driver_bsd.c
index afaacc7..5348d09 100644 (file)
 
 #include "includes.h"
 #include <sys/ioctl.h>
+#include <sys/sysctl.h>
 
 #include "common.h"
 #include "driver.h"
 #include "eloop.h"
 #include "common/ieee802_11_defs.h"
+#include "common/wpa_common.h"
 
 #include <net/if.h>
 #include <net/if_media.h>
 #include <netproto/802_11/ieee80211_ioctl.h>
 #include <netproto/802_11/ieee80211_dragonfly.h>
 #else /* __DragonFly__ */
+#ifdef __GLIBC__
+#include <netinet/ether.h>
+#endif /* __GLIBC__ */
 #include <net80211/ieee80211.h>
 #include <net80211/ieee80211_ioctl.h>
 #include <net80211/ieee80211_crypto.h>
-#endif /* __DragonFly__ */
-#if __FreeBSD__
+#endif /* __DragonFly__ || __GLIBC__ */
+#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
 #include <net80211/ieee80211_freebsd.h>
 #endif
 #if __NetBSD__
@@ -131,7 +136,7 @@ set80211param(struct bsd_driver_data *drv, int op, int arg)
 }
 
 static int
-bsd_get_ssid(const char *ifname, void *priv, u8 *ssid, int len)
+bsd_get_ssid(void *priv, u8 *ssid, int len)
 {
        struct bsd_driver_data *drv = priv;
 #ifdef SIOCG80211NWID
@@ -152,7 +157,7 @@ bsd_get_ssid(const char *ifname, void *priv, u8 *ssid, int len)
 }
 
 static int
-bsd_set_ssid(const char *ifname, void *priv, const u8 *ssid, int ssid_len)
+bsd_set_ssid(void *priv, const u8 *ssid, int ssid_len)
 {
        struct bsd_driver_data *drv = priv;
 #ifdef SIOCS80211NWID
@@ -292,9 +297,7 @@ bsd_set_key(const char *ifname, void *priv, enum wpa_alg alg,
 
        if (alg == WPA_ALG_NONE) {
 #ifndef HOSTAPD
-               if (addr == NULL ||
-                   os_memcmp(addr, "\xff\xff\xff\xff\xff\xff",
-                             IEEE80211_ADDR_LEN) == 0)
+               if (addr == NULL || is_broadcast_ether_addr(addr))
                        return bsd_del_key(priv, NULL, key_idx);
                else
 #endif /* HOSTAPD */
@@ -331,8 +334,7 @@ bsd_set_key(const char *ifname, void *priv, enum wpa_alg alg,
                 * the address (yech).  Note also that we can only mark global
                 * keys default; doing this for a unicast key is an error.
                 */
-               if (os_memcmp(addr, "\xff\xff\xff\xff\xff\xff",
-                             IEEE80211_ADDR_LEN) == 0) {
+               if (is_broadcast_ether_addr(addr)) {
                        wk.ik_flags |= IEEE80211_KEY_GROUP;
                        wk.ik_keyix = key_idx;
                } else {
@@ -343,7 +345,8 @@ bsd_set_key(const char *ifname, void *priv, enum wpa_alg alg,
        if (wk.ik_keyix != IEEE80211_KEYIX_NONE && set_tx)
                wk.ik_flags |= IEEE80211_KEY_DEFAULT;
        wk.ik_keylen = key_len;
-       os_memcpy(&wk.ik_keyrsc, seq, seq_len);
+       if (seq)
+               os_memcpy(&wk.ik_keyrsc, seq, seq_len);
        os_memcpy(wk.ik_keydata, key, key_len);
 
        return set80211var(priv, IEEE80211_IOC_WPAKEY, &wk, sizeof(wk));
@@ -465,8 +468,8 @@ bsd_set_ieee8021x(void *priv, struct wpa_bss_params *params)
 }
 
 static int
-bsd_set_sta_authorized(void *priv, const u8 *addr, int total_flags,
-                      int flags_or, int flags_and)
+bsd_set_sta_authorized(void *priv, const u8 *addr,
+                      int total_flags, int flags_or, int flags_and)
 {
        int authorized = -1;
 
@@ -508,12 +511,12 @@ bsd_new_sta(void *priv, void *ctx, u8 addr[IEEE80211_ADDR_LEN])
                ielen += 2;
 
 no_ie:
-       drv_event_assoc(ctx, addr, iebuf, ielen);
+       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)
+              int encrypt, const u8 *own_addr, u32 flags)
 {
        struct bsd_driver_data *drv = priv;
 
@@ -524,13 +527,14 @@ bsd_send_eapol(void *priv, const u8 *addr, const u8 *data, size_t data_len,
 }
 
 static int
-bsd_set_freq(void *priv, u16 channel)
+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 = IFM_IEEE80211_11G;
@@ -547,7 +551,7 @@ bsd_set_freq(void *priv, u16 channel)
 #ifdef SIOCS80211CHANNEL
        os_memset(&creq, 0, sizeof(creq));
        os_strlcpy(creq.i_name, drv->ifname, sizeof(creq.i_name));
-       creq.i_channel = channel;
+       creq.i_channel = (u_int16_t)channel;
        return ioctl(drv->sock, SIOCS80211CHANNEL, &creq);
 #else /* SIOCS80211CHANNEL */
        return set80211param(priv, IEEE80211_IOC_CHANNEL, channel);
@@ -555,7 +559,7 @@ bsd_set_freq(void *priv, u16 channel)
 }
 
 static int
-bsd_set_opt_ie(const char *ifname, void *priv, const u8 *ie, size_t ie_len)
+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__,
@@ -566,6 +570,21 @@ bsd_set_opt_ie(const char *ifname, void *priv, const u8 *ie, size_t ie_len)
        return 0;
 }
 
+static int
+rtbuf_len(void)
+{
+       size_t len;
+
+       int mib[6] = {CTL_NET, AF_ROUTE, 0, AF_INET6, NET_RT_DUMP, 0};
+
+       if (sysctl(mib, 6, NULL, &len, NULL, 0) < 0) {
+               wpa_printf(MSG_ERROR, "%s failed: %s\n", __func__,
+                          strerror(errno));
+               return -1;
+       }
+
+       return len;
+}
 
 #ifdef HOSTAPD
 
@@ -593,7 +612,7 @@ ether_sprintf(const u8 *addr)
 }
 
 static int
-bsd_set_privacy(const char *ifname, void *priv, int enabled)
+bsd_set_privacy(void *priv, int enabled)
 {
        wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, enabled);
 
@@ -688,26 +707,39 @@ static void
 bsd_wireless_event_receive(int sock, void *ctx, void *sock_ctx)
 {
        struct bsd_driver_data *drv = ctx;
-       char buf[2048];
+       char *buf;
        struct if_announcemsghdr *ifan;
        struct rt_msghdr *rtm;
        struct ieee80211_michael_event *mic;
        struct ieee80211_join_event *join;
        struct ieee80211_leave_event *leave;
-       int n;
+       int n, len;
        union wpa_event_data data;
 
-       n = read(sock, buf, sizeof(buf));
+       len = rtbuf_len();
+       if (len < 0)
+               return;
+
+       buf = os_malloc(len);
+       if (buf == NULL) {
+               wpa_printf(MSG_ERROR, "%s os_malloc() failed\n", __func__);
+               return;
+       }
+
+       n = read(sock, buf, len);
        if (n < 0) {
                if (errno != EINTR && errno != EAGAIN)
-                       perror("read(PF_ROUTE)");
+                       wpa_printf(MSG_ERROR, "%s read() failed: %s\n",
+                                  __func__, strerror(errno));
+               os_free(buf);
                return;
        }
 
        rtm = (struct rt_msghdr *) buf;
        if (rtm->rtm_version != RTM_VERSION) {
-               wpa_printf(MSG_DEBUG, "Routing message version %d not "
-                       "understood\n", rtm->rtm_version);
+               wpa_printf(MSG_DEBUG, "Invalid routing message version=%d",
+                          rtm->rtm_version);
+               os_free(buf);
                return;
        }
        ifan = (struct if_announcemsghdr *) rtm;
@@ -748,6 +780,7 @@ bsd_wireless_event_receive(int sock, void *ctx, void *sock_ctx)
                }
                break;
        }
+       os_free(buf);
 }
 
 static void
@@ -757,12 +790,6 @@ handle_read(void *ctx, const u8 *src_addr, const u8 *buf, size_t len)
        drv_event_eapol_rx(drv->hapd, src_addr, buf, len);
 }
 
-static int
-hostapd_bsd_set_freq(void *priv, struct hostapd_freq_params *freq)
-{
-       return bsd_set_freq(priv, freq->channel);
-}
-
 static void *
 bsd_init(struct hostapd_data *hapd, struct wpa_init_params *params)
 {
@@ -870,7 +897,7 @@ static int
 wpa_driver_bsd_get_ssid(void *priv, u8 *ssid)
 {
        struct bsd_driver_data *drv = priv;
-       return bsd_get_ssid(drv->ifname, drv, ssid, 0);
+       return bsd_get_ssid(drv, ssid, 0);
 }
 
 static int
@@ -878,7 +905,7 @@ 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->ifname, drv, wpa_ie, wpa_ie_len);
+       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 */
@@ -969,7 +996,6 @@ wpa_driver_bsd_associate(void *priv, struct wpa_driver_associate_params *params)
        struct bsd_driver_data *drv = priv;
        struct ieee80211req_mlme mlme;
        u32 mode;
-       u16 channel;
        int privacy;
        int ret = 0;
 
@@ -1004,18 +1030,6 @@ wpa_driver_bsd_associate(void *priv, struct wpa_driver_associate_params *params)
        }
 
        if (params->mode == IEEE80211_MODE_AP) {
-               if (params->freq >= 2412 && params->freq <= 2472)
-                       channel = (params->freq - 2407) / 5;
-               else if (params->freq == 2484)
-                       channel = 14;
-               else if ((params->freq >= 5180 && params->freq <= 5240) ||
-                        (params->freq >= 5745 && params->freq <= 5825))
-                       channel = (params->freq - 5000) / 5;
-               else
-                       channel = 0;
-               if (bsd_set_freq(drv, channel) < 0)
-                       return -1;
-
                drv->sock_xmit = l2_packet_init(drv->ifname, NULL, ETH_P_EAPOL,
                                                handle_read, drv, 0);
                if (drv->sock_xmit == NULL)
@@ -1118,7 +1132,7 @@ wpa_driver_bsd_scan(void *priv, struct wpa_driver_scan_params *params)
        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->ifname, drv, params->ssids[0].ssid,
+       if (bsd_set_ssid(drv, params->ssids[0].ssid,
                         params->ssids[0].ssid_len) < 0)
                return -1;
 
@@ -1131,7 +1145,7 @@ static void
 wpa_driver_bsd_event_receive(int sock, void *ctx, void *sock_ctx)
 {
        struct bsd_driver_data *drv = sock_ctx;
-       char buf[2048];
+       char *buf;
        struct if_announcemsghdr *ifan;
        struct if_msghdr *ifm;
        struct rt_msghdr *rtm;
@@ -1139,19 +1153,32 @@ wpa_driver_bsd_event_receive(int sock, void *ctx, void *sock_ctx)
        struct ieee80211_michael_event *mic;
        struct ieee80211_leave_event *leave;
        struct ieee80211_join_event *join;
-       int n;
+       int n, len;
+
+       len = rtbuf_len();
+       if (len < 0)
+               return;
 
-       n = read(sock, buf, sizeof(buf));
+       buf = os_malloc(len);
+       if (buf == NULL) {
+               wpa_printf(MSG_ERROR, "%s os_malloc() failed\n", __func__);
+               return;
+       }
+
+       n = read(sock, buf, len);
        if (n < 0) {
                if (errno != EINTR && errno != EAGAIN)
-                       perror("read(PF_ROUTE)");
+                       wpa_printf(MSG_ERROR, "%s read() failed: %s\n",
+                                  __func__, strerror(errno));
+               os_free(buf);
                return;
        }
 
        rtm = (struct rt_msghdr *) buf;
        if (rtm->rtm_version != RTM_VERSION) {
-               wpa_printf(MSG_DEBUG, "Routing message version %d not "
-                       "understood\n", rtm->rtm_version);
+               wpa_printf(MSG_DEBUG, "Invalid routing message version=%d",
+                          rtm->rtm_version);
+               os_free(buf);
                return;
        }
        os_memset(&event, 0, sizeof(event));
@@ -1160,12 +1187,13 @@ wpa_driver_bsd_event_receive(int sock, void *ctx, void *sock_ctx)
                ifan = (struct if_announcemsghdr *) rtm;
                if (ifan->ifan_index != drv->ifindex)
                        break;
-               strlcpy(event.interface_status.ifname, drv->ifname,
-                       sizeof(event.interface_status.ifname));
+               os_strlcpy(event.interface_status.ifname, drv->ifname,
+                          sizeof(event.interface_status.ifname));
                switch (ifan->ifan_what) {
                case IFAN_DEPARTURE:
                        event.interface_status.ievent = EVENT_INTERFACE_REMOVED;
                default:
+                       os_free(buf);
                        return;
                }
                wpa_printf(MSG_DEBUG, "RTM_IFANNOUNCE: Interface '%s' %s",
@@ -1229,8 +1257,8 @@ wpa_driver_bsd_event_receive(int sock, void *ctx, void *sock_ctx)
                if (ifm->ifm_index != drv->ifindex)
                        break;
                if ((rtm->rtm_flags & RTF_UP) == 0) {
-                       strlcpy(event.interface_status.ifname, drv->ifname,
-                               sizeof(event.interface_status.ifname));
+                       os_strlcpy(event.interface_status.ifname, drv->ifname,
+                                  sizeof(event.interface_status.ifname));
                        event.interface_status.ievent = EVENT_INTERFACE_REMOVED;
                        wpa_printf(MSG_DEBUG, "RTM_IFINFO: Interface '%s' DOWN",
                                   event.interface_status.ifname);
@@ -1238,6 +1266,7 @@ wpa_driver_bsd_event_receive(int sock, void *ctx, void *sock_ctx)
                }
                break;
        }
+       os_free(buf);
 }
 
 static void
@@ -1331,6 +1360,56 @@ wpa_driver_bsd_get_scan_results2(void *priv)
 
 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<<IEEE80211_CIPHER_WEP)
+#define IEEE80211_CRYPTO_TKIP           (1<<IEEE80211_CIPHER_TKIP)
+#define IEEE80211_CRYPTO_AES_CCM        (1<<IEEE80211_CIPHER_AES_CCM)
+#define IEEE80211_C_HOSTAP      0x00000400      /* CAPABILITY: HOSTAP avail */
+#define IEEE80211_C_WPA1        0x00800000      /* CAPABILITY: WPA1 avail */
+#define IEEE80211_C_WPA2        0x01000000      /* CAPABILITY: WPA2 avail */
+       struct ieee80211_devcaps_req devcaps;
+
+       if (get80211var(drv, IEEE80211_IOC_DEVCAPS, &devcaps,
+                       sizeof(devcaps)) < 0) {
+               wpa_printf(MSG_ERROR, "failed to IEEE80211_IOC_DEVCAPS: %s",
+                          strerror(errno));
+               return -1;
+       }
+
+       wpa_printf(MSG_DEBUG, "%s: drivercaps=0x%08x,cryptocaps=0x%08x",
+                  __func__, devcaps.dc_drivercaps, devcaps.dc_cryptocaps);
+
+       if (devcaps.dc_drivercaps & IEEE80211_C_WPA1)
+               drv->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;
+
+       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;
+
+       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 |
@@ -1340,14 +1419,16 @@ static int wpa_driver_bsd_capa(struct bsd_driver_data *drv)
                WPA_DRIVER_CAPA_ENC_WEP104 |
                WPA_DRIVER_CAPA_ENC_TKIP |
                WPA_DRIVER_CAPA_ENC_CCMP;
-       drv->capa.auth = WPA_DRIVER_AUTH_OPEN |
-               WPA_DRIVER_AUTH_SHARED |
-               WPA_DRIVER_AUTH_LEAP;
+       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.flags |= WPA_DRIVER_FLAGS_AP;
-
+       drv->capa.auth = WPA_DRIVER_AUTH_OPEN |
+               WPA_DRIVER_AUTH_SHARED |
+               WPA_DRIVER_AUTH_LEAP;
        return 0;
 }
 
@@ -1463,7 +1544,6 @@ const struct wpa_driver_ops wpa_driver_bsd_ops = {
        .read_sta_data          = bsd_read_sta_driver_data,
        .sta_disassoc           = bsd_sta_disassoc,
        .sta_deauth             = bsd_sta_deauth,
-       .set_freq               = hostapd_bsd_set_freq,
 #else /* HOSTAPD */
        .init                   = wpa_driver_bsd_init,
        .deinit                 = wpa_driver_bsd_deinit,
@@ -1477,6 +1557,7 @@ const struct wpa_driver_ops wpa_driver_bsd_ops = {
        .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,