From 7da3abe71131c3a1d238461bb76abc2aadbbed99 Mon Sep 17 00:00:00 2001 From: Jouni Malinen Date: Tue, 14 Apr 2009 15:35:03 +0300 Subject: [PATCH] nl80211: Merge handle_frame() implementations --- src/drivers/driver_nl80211.c | 209 ++++++++++++----------------------- 1 file changed, 69 insertions(+), 140 deletions(-) diff --git a/src/drivers/driver_nl80211.c b/src/drivers/driver_nl80211.c index 5993c97ad..073494ad9 100644 --- a/src/drivers/driver_nl80211.c +++ b/src/drivers/driver_nl80211.c @@ -111,25 +111,25 @@ struct wpa_driver_nl80211_data { u8 ssid[32]; size_t ssid_len; -#ifdef CONFIG_AP +#if defined(CONFIG_AP) || defined(HOSTAPD) int beacon_int; - unsigned int beacon_set:1; int monitor_sock; int monitor_ifidx; +#endif /* CONFIG_AP || HOSTAPD */ + +#ifdef CONFIG_AP + unsigned int beacon_set:1; #endif /* CONFIG_AP */ #ifdef HOSTAPD struct hostapd_data *hapd; int eapol_sock; /* socket for EAPOL frames */ - int monitor_sock; /* socket for monitor */ - int monitor_ifidx; int default_if_indices[16]; int *if_indices; int num_if_indices; - int beacon_int; struct i802_bss bss; unsigned int ht_40mhz_scan:1; @@ -154,10 +154,6 @@ static void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv, #endif /* CONFIG_AP */ #ifdef HOSTAPD -static void handle_frame(struct wpa_driver_nl80211_data *drv, - u8 *buf, size_t len, - struct hostapd_frame_info *hfi, - enum ieee80211_msg_type msg_type); static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx); static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx); static struct i802_bss * get_bss(struct wpa_driver_nl80211_data *drv, @@ -338,13 +334,13 @@ static int wpa_driver_nl80211_send_oper_ifla( RTA_LENGTH(sizeof(char)); } - wpa_printf(MSG_DEBUG, "WEXT: Operstate: linkmode=%d, operstate=%d", + wpa_printf(MSG_DEBUG, "nl80211: Operstate: linkmode=%d, operstate=%d", linkmode, operstate); ret = send(drv->link_event_sock, &req, req.hdr.nlmsg_len, 0); if (ret < 0) { - wpa_printf(MSG_DEBUG, "WEXT: Sending operstate IFLA failed: " - "%s (assume operstate is not supported)", + wpa_printf(MSG_DEBUG, "nl80211: Sending operstate IFLA failed:" + " %s (assume operstate is not supported)", strerror(errno)); } @@ -2330,9 +2326,6 @@ static void handle_tx_callback(void *ctx, u8 *buf, size_t len, int ok) } } -#endif /* CONFIG_AP || HOSTAPD */ - -#ifdef CONFIG_AP static void handle_frame(struct wpa_driver_nl80211_data *drv, u8 *buf, size_t len, @@ -2342,6 +2335,14 @@ static void handle_frame(struct wpa_driver_nl80211_data *drv, struct ieee80211_hdr *hdr; u16 fc, type, stype; size_t data_len = len; + u8 *bssid; + void *ctx = drv->ctx; +#ifdef HOSTAPD + struct hostapd_iface *iface = drv->hapd->iface; + struct hostapd_data *hapd = NULL; + int broadcast_bssid = 0; + size_t i; +#endif /* HOSTAPD */ /* * PS-Poll frames are 16 bytes. All other frames are @@ -2362,8 +2363,10 @@ static void handle_frame(struct wpa_driver_nl80211_data *drv, return; switch (fc & (WLAN_FC_FROMDS | WLAN_FC_TODS)) { case WLAN_FC_TODS: + bssid = hdr->addr1; break; case WLAN_FC_FROMDS: + bssid = hdr->addr2; break; default: /* discard */ @@ -2374,23 +2377,55 @@ static void handle_frame(struct wpa_driver_nl80211_data *drv, /* discard non-ps-poll frames */ if (stype != WLAN_FC_STYPE_PSPOLL) return; + bssid = hdr->addr1; break; case WLAN_FC_TYPE_MGMT: + bssid = hdr->addr3; break; default: /* discard */ return; } +#ifdef HOSTAPD + /* find interface frame belongs to */ + for (i = 0; i < iface->num_bss; i++) { + if (memcmp(bssid, iface->bss[i]->own_addr, ETH_ALEN) == 0) { + hapd = iface->bss[i]; + break; + } + } + + if (hapd == NULL) { + hapd = iface->bss[0]; + + if (bssid[0] != 0xff || bssid[1] != 0xff || + bssid[2] != 0xff || bssid[3] != 0xff || + bssid[4] != 0xff || bssid[5] != 0xff) { + /* + * Unknown BSSID - drop frame if this is not from + * passive scanning or a beacon (at least ProbeReq + * frames to other APs may be allowed through RX + * filtering in the wlan hw/driver) + */ + if ((type != WLAN_FC_TYPE_MGMT || + stype != WLAN_FC_STYPE_BEACON)) + return; + } else + broadcast_bssid = 1; + } + ctx = hapd; +#endif /* HOSTAPD */ + switch (msg_type) { case ieee80211_msg_normal: /* continue processing */ break; case ieee80211_msg_tx_callback_ack: - handle_tx_callback(drv->ctx, buf, data_len, 1); + handle_tx_callback(ctx, buf, data_len, 1); return; case ieee80211_msg_tx_callback_fail: - handle_tx_callback(drv->ctx, buf, data_len, 0); + handle_tx_callback(ctx, buf, data_len, 0); return; } @@ -2399,22 +2434,36 @@ static void handle_frame(struct wpa_driver_nl80211_data *drv, if (stype != WLAN_FC_STYPE_BEACON && stype != WLAN_FC_STYPE_PROBE_REQ) wpa_printf(MSG_MSGDUMP, "MGMT"); +#ifdef HOSTAPD + if (broadcast_bssid) { + for (i = 0; i < iface->num_bss; i++) + hostapd_mgmt_rx(iface->bss[i], buf, data_len, + stype, hfi); + } else + hostapd_mgmt_rx(hapd, buf, data_len, stype, hfi); +#else /* HOSTAPD */ ap_mgmt_rx(drv->ctx, buf, data_len, stype, hfi); +#endif /* HOSTAPD */ break; case WLAN_FC_TYPE_CTRL: /* can only get here with PS-Poll frames */ wpa_printf(MSG_DEBUG, "CTRL"); +#ifdef HOSTAPD + hostapd_rx_from_unknown_sta(drv->hapd, hdr->addr2); +#else /* HOSTAPD */ ap_rx_from_unknown_sta(drv->ctx, hdr->addr2); +#endif /* HOSTAPD */ break; case WLAN_FC_TYPE_DATA: +#ifdef HOSTAPD + hostapd_rx_from_unknown_sta(drv->hapd, hdr->addr2); +#else /* HOSTAPD */ ap_rx_from_unknown_sta(drv->ctx, hdr->addr2); +#endif /* HOSTAPD */ break; } } -#endif /* CONFIG_AP */ - -#if defined(CONFIG_AP) || defined(HOSTAPD) static void handle_monitor_read(int sock, void *eloop_ctx, void *sock_ctx) { @@ -3651,126 +3700,6 @@ static int i802_set_sta_vlan(void *priv, const u8 *addr, } -static void handle_frame(struct wpa_driver_nl80211_data *drv, - u8 *buf, size_t len, - struct hostapd_frame_info *hfi, - enum ieee80211_msg_type msg_type) -{ - struct hostapd_iface *iface = drv->hapd->iface; - struct ieee80211_hdr *hdr; - u16 fc, type, stype; - size_t data_len = len; - struct hostapd_data *hapd = NULL; - int broadcast_bssid = 0; - size_t i; - u8 *bssid; - - /* - * PS-Poll frames are 16 bytes. All other frames are - * 24 bytes or longer. - */ - if (len < 16) - return; - - hdr = (struct ieee80211_hdr *) buf; - fc = le_to_host16(hdr->frame_control); - - type = WLAN_FC_GET_TYPE(fc); - stype = WLAN_FC_GET_STYPE(fc); - - switch (type) { - case WLAN_FC_TYPE_DATA: - if (len < 24) - return; - switch (fc & (WLAN_FC_FROMDS | WLAN_FC_TODS)) { - case WLAN_FC_TODS: - bssid = hdr->addr1; - break; - case WLAN_FC_FROMDS: - bssid = hdr->addr2; - break; - default: - /* discard */ - return; - } - break; - case WLAN_FC_TYPE_CTRL: - /* discard non-ps-poll frames */ - if (stype != WLAN_FC_STYPE_PSPOLL) - return; - bssid = hdr->addr1; - break; - case WLAN_FC_TYPE_MGMT: - bssid = hdr->addr3; - break; - default: - /* discard */ - return; - } - - /* find interface frame belongs to */ - for (i = 0; i < iface->num_bss; i++) { - if (memcmp(bssid, iface->bss[i]->own_addr, ETH_ALEN) == 0) { - hapd = iface->bss[i]; - break; - } - } - - if (hapd == NULL) { - hapd = iface->bss[0]; - - if (bssid[0] != 0xff || bssid[1] != 0xff || - bssid[2] != 0xff || bssid[3] != 0xff || - bssid[4] != 0xff || bssid[5] != 0xff) { - /* - * Unknown BSSID - drop frame if this is not from - * passive scanning or a beacon (at least ProbeReq - * frames to other APs may be allowed through RX - * filtering in the wlan hw/driver) - */ - if ((type != WLAN_FC_TYPE_MGMT || - stype != WLAN_FC_STYPE_BEACON)) - return; - } else - broadcast_bssid = 1; - } - - switch (msg_type) { - case ieee80211_msg_normal: - /* continue processing */ - break; - case ieee80211_msg_tx_callback_ack: - handle_tx_callback(hapd, buf, data_len, 1); - return; - case ieee80211_msg_tx_callback_fail: - handle_tx_callback(hapd, buf, data_len, 0); - return; - } - - switch (type) { - case WLAN_FC_TYPE_MGMT: - if (stype != WLAN_FC_STYPE_BEACON && - stype != WLAN_FC_STYPE_PROBE_REQ) - wpa_printf(MSG_MSGDUMP, "MGMT"); - if (broadcast_bssid) { - for (i = 0; i < iface->num_bss; i++) - hostapd_mgmt_rx(iface->bss[i], buf, data_len, - stype, hfi); - } else - hostapd_mgmt_rx(hapd, buf, data_len, stype, hfi); - break; - case WLAN_FC_TYPE_CTRL: - /* can only get here with PS-Poll frames */ - wpa_printf(MSG_DEBUG, "CTRL"); - hostapd_rx_from_unknown_sta(drv->hapd, hdr->addr2); - break; - case WLAN_FC_TYPE_DATA: - hostapd_rx_from_unknown_sta(drv->hapd, hdr->addr2); - break; - } -} - - static void handle_eapol(int sock, void *eloop_ctx, void *sock_ctx) { struct wpa_driver_nl80211_data *drv = eloop_ctx;