#include <linux/slab.h>
#include <linux/tcp.h>
#include <linux/types.h>
-#include <linux/version.h>
#include <linux/wireless.h>
#include <linux/etherdevice.h>
#include <asm/uaccess.h>
#include <net/ieee80211.h>
-static inline void ieee80211_monitor_rx(struct ieee80211_device *ieee,
+static void ieee80211_monitor_rx(struct ieee80211_device *ieee,
struct sk_buff *skb,
struct ieee80211_rx_stats *rx_stats)
{
if (entry->skb != NULL && entry->seq == seq &&
(entry->last_frag + 1 == frag || frag == -1) &&
- memcmp(entry->src_addr, src, ETH_ALEN) == 0 &&
- memcmp(entry->dst_addr, dst, ETH_ALEN) == 0)
+ !compare_ether_addr(entry->src_addr, src) &&
+ !compare_ether_addr(entry->dst_addr, dst))
return entry;
}
* Responsible for handling management control frames
*
* Called by ieee80211_rx */
-static inline int
+static int
ieee80211_rx_frame_mgmt(struct ieee80211_device *ieee, struct sk_buff *skb,
struct ieee80211_rx_stats *rx_stats, u16 type,
u16 stype)
/* check that the frame is unicast frame to us */
if ((fc & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) ==
IEEE80211_FCTL_TODS &&
- memcmp(hdr->addr1, dev->dev_addr, ETH_ALEN) == 0 &&
- memcmp(hdr->addr3, dev->dev_addr, ETH_ALEN) == 0) {
+ !compare_ether_addr(hdr->addr1, dev->dev_addr) &&
+ !compare_ether_addr(hdr->addr3, dev->dev_addr)) {
/* ToDS frame with own addr BSSID and DA */
} else if ((fc & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) ==
IEEE80211_FCTL_FROMDS &&
- memcmp(hdr->addr1, dev->dev_addr, ETH_ALEN) == 0) {
+ !compare_ether_addr(hdr->addr1, dev->dev_addr)) {
/* FromDS frame with own addr as DA */
} else
return 0;
}
/* Called only as a tasklet (software IRQ), by ieee80211_rx */
-static inline int
+static int
ieee80211_rx_frame_decrypt(struct ieee80211_device *ieee, struct sk_buff *skb,
struct ieee80211_crypt_data *crypt)
{
}
/* Called only as a tasklet (software IRQ), by ieee80211_rx */
-static inline int
+static int
ieee80211_rx_frame_decrypt_msdu(struct ieee80211_device *ieee,
struct sk_buff *skb, int keyidx,
struct ieee80211_crypt_data *crypt)
u8 src[ETH_ALEN];
struct ieee80211_crypt_data *crypt = NULL;
int keyidx = 0;
+ int can_be_decrypted = 0;
hdr = (struct ieee80211_hdr_4addr *)skb->data;
stats = &ieee->stats;
/* Put this code here so that we avoid duplicating it in all
* Rx paths. - Jean II */
+#ifdef CONFIG_WIRELESS_EXT
#ifdef IW_WIRELESS_SPY /* defined in iw_handler.h */
/* If spy monitoring on */
if (ieee->spy_data.spy_number > 0) {
wireless_spy_update(ieee->dev, hdr->addr2, &wstats);
}
#endif /* IW_WIRELESS_SPY */
+#endif /* CONFIG_WIRELESS_EXT */
#ifdef NOT_YET
hostap_update_rx_stats(local->ap, hdr, rx_stats);
return 1;
}
- if (is_multicast_ether_addr(hdr->addr1) ? ieee->host_mc_decrypt :
- ieee->host_decrypt) {
+ can_be_decrypted = (is_multicast_ether_addr(hdr->addr1) ||
+ is_broadcast_ether_addr(hdr->addr2)) ?
+ ieee->host_mc_decrypt : ieee->host_decrypt;
+
+ if (can_be_decrypted) {
int idx = 0;
- if (skb->len >= hdrlen + 3)
+ if (skb->len >= hdrlen + 3) {
+ /* Top two-bits of byte 3 are the key index */
idx = skb->data[hdrlen + 3] >> 6;
+ }
+
+ /* ieee->crypt[] is WEP_KEY (4) in length. Given that idx
+ * is only allowed 2-bits of storage, no value of idx can
+ * be provided via above code that would result in idx
+ * being out of range */
crypt = ieee->crypt[idx];
+
#ifdef NOT_YET
sta = NULL;
if (ieee->iw_mode == IW_MODE_MASTER && !wds &&
(fc & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) ==
IEEE80211_FCTL_FROMDS && ieee->stadev
- && memcmp(hdr->addr2, ieee->assoc_ap_addr, ETH_ALEN) == 0) {
+ && !compare_ether_addr(hdr->addr2, ieee->assoc_ap_addr)) {
/* Frame from BSSID of the AP for which we are a client */
skb->dev = dev = ieee->stadev;
stats = hostap_get_stats(dev);
/* skb: hdr + (possibly fragmented, possibly encrypted) payload */
- if (ieee->host_decrypt && (fc & IEEE80211_FCTL_PROTECTED) &&
+ if ((fc & IEEE80211_FCTL_PROTECTED) && can_be_decrypted &&
(keyidx = ieee80211_rx_frame_decrypt(ieee, skb, crypt)) < 0)
goto rx_dropped;
/* skb: hdr + (possibly fragmented) plaintext payload */
// PR: FIXME: hostap has additional conditions in the "if" below:
// ieee->host_decrypt && (fc & IEEE80211_FCTL_PROTECTED) &&
- if ((frag != 0 || (fc & IEEE80211_FCTL_MOREFRAGS))) {
+ if ((frag != 0) || (fc & IEEE80211_FCTL_MOREFRAGS)) {
int flen;
struct sk_buff *frag_skb = ieee80211_frag_cache_get(ieee, hdr);
IEEE80211_DEBUG_FRAG("Rx Fragment received (%u)\n", frag);
/* skb: hdr + (possible reassembled) full MSDU payload; possibly still
* encrypted/authenticated */
- if (ieee->host_decrypt && (fc & IEEE80211_FCTL_PROTECTED) &&
+ if ((fc & IEEE80211_FCTL_PROTECTED) && can_be_decrypted &&
ieee80211_rx_frame_decrypt_msdu(ieee, skb, keyidx, crypt))
goto rx_dropped;
memset(skb->cb, 0, sizeof(skb->cb));
skb->dev = dev;
skb->ip_summed = CHECKSUM_NONE; /* 802.11 crc not sufficient */
- netif_rx(skb);
+ if (netif_rx(skb) == NET_RX_DROP) {
+ /* netif_rx always succeeds, but it might drop
+ * the packet. If it drops the packet, we log that
+ * in our stats. */
+ IEEE80211_DEBUG_DROP
+ ("RX: netif_rx dropped the packet\n");
+ stats->rx_dropped++;
+ }
}
rx_exit:
return 0;
}
+/* Filter out unrelated packets, call ieee80211_rx[_mgt] */
+int ieee80211_rx_any(struct ieee80211_device *ieee,
+ struct sk_buff *skb, struct ieee80211_rx_stats *stats)
+{
+ struct ieee80211_hdr_4addr *hdr;
+ int is_packet_for_us;
+ u16 fc;
+
+ if (ieee->iw_mode == IW_MODE_MONITOR)
+ return ieee80211_rx(ieee, skb, stats) ? 0 : -EINVAL;
+
+ hdr = (struct ieee80211_hdr_4addr *)skb->data;
+ fc = le16_to_cpu(hdr->frame_ctl);
+
+ if ((fc & IEEE80211_FCTL_VERS) != 0)
+ return -EINVAL;
+
+ switch (fc & IEEE80211_FCTL_FTYPE) {
+ case IEEE80211_FTYPE_MGMT:
+ ieee80211_rx_mgt(ieee, hdr, stats);
+ return 0;
+ case IEEE80211_FTYPE_DATA:
+ break;
+ case IEEE80211_FTYPE_CTL:
+ return 0;
+ default:
+ return -EINVAL;
+ }
+
+ is_packet_for_us = 0;
+ switch (ieee->iw_mode) {
+ case IW_MODE_ADHOC:
+ /* our BSS and not from/to DS */
+ if (memcmp(hdr->addr3, ieee->bssid, ETH_ALEN) == 0)
+ if ((fc & (IEEE80211_FCTL_TODS+IEEE80211_FCTL_FROMDS)) == 0) {
+ /* promisc: get all */
+ if (ieee->dev->flags & IFF_PROMISC)
+ is_packet_for_us = 1;
+ /* to us */
+ else if (memcmp(hdr->addr1, ieee->dev->dev_addr, ETH_ALEN) == 0)
+ is_packet_for_us = 1;
+ /* mcast */
+ else if (is_multicast_ether_addr(hdr->addr1))
+ is_packet_for_us = 1;
+ }
+ break;
+ case IW_MODE_INFRA:
+ /* our BSS (== from our AP) and from DS */
+ if (memcmp(hdr->addr2, ieee->bssid, ETH_ALEN) == 0)
+ if ((fc & (IEEE80211_FCTL_TODS+IEEE80211_FCTL_FROMDS)) == IEEE80211_FCTL_FROMDS) {
+ /* promisc: get all */
+ if (ieee->dev->flags & IFF_PROMISC)
+ is_packet_for_us = 1;
+ /* to us */
+ else if (memcmp(hdr->addr1, ieee->dev->dev_addr, ETH_ALEN) == 0)
+ is_packet_for_us = 1;
+ /* mcast */
+ else if (is_multicast_ether_addr(hdr->addr1)) {
+ /* not our own packet bcasted from AP */
+ if (memcmp(hdr->addr3, ieee->dev->dev_addr, ETH_ALEN))
+ is_packet_for_us = 1;
+ }
+ }
+ break;
+ default:
+ /* ? */
+ break;
+ }
+
+ if (is_packet_for_us)
+ return (ieee80211_rx(ieee, skb, stats) ? 0 : -EINVAL);
+ return 0;
+}
+
#define MGMT_FRAME_FIXED_PART_LENGTH 0x24
static u8 qos_oui[QOS_OUI_LEN] = { 0x00, 0x50, 0xF2 };
return rc;
}
-static int ieee80211_handle_assoc_resp(struct ieee80211_device *ieee, struct ieee80211_assoc_response
- *frame, struct ieee80211_rx_stats *stats)
-{
- struct ieee80211_network network_resp;
- struct ieee80211_network *network = &network_resp;
- struct ieee80211_info_element *info_element;
- struct net_device *dev = ieee->dev;
- u16 left;
-
- network->flags = 0;
- network->qos_data.active = 0;
- network->qos_data.supported = 0;
- network->qos_data.param_count = 0;
- network->qos_data.old_param_count = 0;
-
- //network->atim_window = le16_to_cpu(frame->aid) & (0x3FFF);
- network->atim_window = le16_to_cpu(frame->aid);
- network->listen_interval = le16_to_cpu(frame->status);
-
- info_element = frame->info_element;
- left = stats->len - sizeof(*frame);
-
- while (left >= sizeof(struct ieee80211_info_element)) {
- if (sizeof(struct ieee80211_info_element) +
- info_element->len > left) {
- IEEE80211_DEBUG_QOS("ASSOC RESP: parse failed: "
- "info_element->len + 2 > left : "
- "info_element->len+2=%zd left=%d, id=%d.\n",
- info_element->len +
- sizeof(struct
- ieee80211_info_element),
- left, info_element->id);
- return 1;
- }
-
- switch (info_element->id) {
- case MFIE_TYPE_SSID:
- if (ieee80211_is_empty_essid(info_element->data,
- info_element->len)) {
- network->flags |= NETWORK_EMPTY_ESSID;
- break;
- }
-
- network->ssid_len = min(info_element->len,
- (u8) IW_ESSID_MAX_SIZE);
- memcpy(network->ssid, info_element->data,
- network->ssid_len);
- if (network->ssid_len < IW_ESSID_MAX_SIZE)
- memset(network->ssid + network->ssid_len, 0,
- IW_ESSID_MAX_SIZE - network->ssid_len);
-
- IEEE80211_DEBUG_QOS("MFIE_TYPE_SSID: '%s' len=%d.\n",
- network->ssid, network->ssid_len);
- break;
-
- case MFIE_TYPE_TIM:
- IEEE80211_DEBUG_QOS("MFIE_TYPE_TIM: ignored\n");
- break;
-
- case MFIE_TYPE_IBSS_SET:
- IEEE80211_DEBUG_QOS("MFIE_TYPE_IBSS_SET: ignored\n");
- break;
-
- case MFIE_TYPE_CHALLENGE:
- IEEE80211_DEBUG_QOS("MFIE_TYPE_CHALLENGE: ignored\n");
- break;
-
- case MFIE_TYPE_GENERIC:
- IEEE80211_DEBUG_QOS("MFIE_TYPE_GENERIC: %d bytes\n",
- info_element->len);
- ieee80211_parse_qos_info_param_IE(info_element,
- network);
- break;
-
- case MFIE_TYPE_RSN:
- IEEE80211_DEBUG_QOS("MFIE_TYPE_RSN: %d bytes\n",
- info_element->len);
- break;
-
- case MFIE_TYPE_QOS_PARAMETER:
- printk("QoS Error need to parse QOS_PARAMETER IE\n");
- break;
-
- default:
- IEEE80211_DEBUG_QOS("unsupported IE %d\n",
- info_element->id);
- break;
- }
-
- left -= sizeof(struct ieee80211_info_element) +
- info_element->len;
- info_element = (struct ieee80211_info_element *)
- &info_element->data[info_element->len];
- }
-
- if (ieee->handle_assoc_response != NULL)
- ieee->handle_assoc_response(dev, frame, network);
-
- return 0;
-}
-
-/***************************************************/
+#ifdef CONFIG_IEEE80211_DEBUG
+#define MFIE_STRING(x) case MFIE_TYPE_ ##x: return #x
-static inline int ieee80211_is_ofdm_rate(u8 rate)
+static const char *get_info_element_string(u16 id)
{
- switch (rate & ~IEEE80211_BASIC_RATE_MASK) {
- case IEEE80211_OFDM_RATE_6MB:
- case IEEE80211_OFDM_RATE_9MB:
- case IEEE80211_OFDM_RATE_12MB:
- case IEEE80211_OFDM_RATE_18MB:
- case IEEE80211_OFDM_RATE_24MB:
- case IEEE80211_OFDM_RATE_36MB:
- case IEEE80211_OFDM_RATE_48MB:
- case IEEE80211_OFDM_RATE_54MB:
- return 1;
+ switch (id) {
+ MFIE_STRING(SSID);
+ MFIE_STRING(RATES);
+ MFIE_STRING(FH_SET);
+ MFIE_STRING(DS_SET);
+ MFIE_STRING(CF_SET);
+ MFIE_STRING(TIM);
+ MFIE_STRING(IBSS_SET);
+ MFIE_STRING(COUNTRY);
+ MFIE_STRING(HOP_PARAMS);
+ MFIE_STRING(HOP_TABLE);
+ MFIE_STRING(REQUEST);
+ MFIE_STRING(CHALLENGE);
+ MFIE_STRING(POWER_CONSTRAINT);
+ MFIE_STRING(POWER_CAPABILITY);
+ MFIE_STRING(TPC_REQUEST);
+ MFIE_STRING(TPC_REPORT);
+ MFIE_STRING(SUPP_CHANNELS);
+ MFIE_STRING(CSA);
+ MFIE_STRING(MEASURE_REQUEST);
+ MFIE_STRING(MEASURE_REPORT);
+ MFIE_STRING(QUIET);
+ MFIE_STRING(IBSS_DFS);
+ MFIE_STRING(ERP_INFO);
+ MFIE_STRING(RSN);
+ MFIE_STRING(RATES_EX);
+ MFIE_STRING(GENERIC);
+ MFIE_STRING(QOS_PARAMETER);
+ default:
+ return "UNKNOWN";
}
- return 0;
}
+#endif
-static inline int ieee80211_network_init(struct ieee80211_device *ieee, struct ieee80211_probe_response
- *beacon,
- struct ieee80211_network *network,
- struct ieee80211_rx_stats *stats)
+static int ieee80211_parse_info_param(struct ieee80211_info_element
+ *info_element, u16 length,
+ struct ieee80211_network *network)
{
+ u8 i;
#ifdef CONFIG_IEEE80211_DEBUG
char rates_str[64];
char *p;
#endif
- struct ieee80211_info_element *info_element;
- u16 left;
- u8 i;
- network->qos_data.active = 0;
- network->qos_data.supported = 0;
- network->qos_data.param_count = 0;
-
- /* Pull out fixed field data */
- memcpy(network->bssid, beacon->header.addr3, ETH_ALEN);
- network->capability = le16_to_cpu(beacon->capability);
- network->last_scanned = jiffies;
- network->time_stamp[0] = le32_to_cpu(beacon->time_stamp[0]);
- network->time_stamp[1] = le32_to_cpu(beacon->time_stamp[1]);
- network->beacon_interval = le16_to_cpu(beacon->beacon_interval);
- /* Where to pull this? beacon->listen_interval; */
- network->listen_interval = 0x0A;
- network->rates_len = network->rates_ex_len = 0;
- network->last_associate = 0;
- network->ssid_len = 0;
- network->flags = 0;
- network->atim_window = 0;
- network->erp_value = (network->capability & WLAN_CAPABILITY_IBSS) ?
- 0x3 : 0x0;
- if (stats->freq == IEEE80211_52GHZ_BAND) {
- /* for A band (No DS info) */
- network->channel = stats->received_channel;
- } else
- network->flags |= NETWORK_HAS_CCK;
-
- network->wpa_ie_len = 0;
- network->rsn_ie_len = 0;
-
- info_element = beacon->info_element;
- left = stats->len - sizeof(*beacon);
- while (left >= sizeof(*info_element)) {
- if (sizeof(*info_element) + info_element->len > left) {
- IEEE80211_DEBUG_SCAN
- ("SCAN: parse failed: info_element->len + 2 > left : info_element->len+2=%Zd left=%d.\n",
- info_element->len + sizeof(*info_element), left);
+ while (length >= sizeof(*info_element)) {
+ if (sizeof(*info_element) + info_element->len > length) {
+ IEEE80211_DEBUG_MGMT("Info elem: parse failed: "
+ "info_element->len + 2 > left : "
+ "info_element->len+2=%zd left=%d, id=%d.\n",
+ info_element->len +
+ sizeof(*info_element),
+ length, info_element->id);
return 1;
}
memset(network->ssid + network->ssid_len, 0,
IW_ESSID_MAX_SIZE - network->ssid_len);
- IEEE80211_DEBUG_SCAN("MFIE_TYPE_SSID: '%s' len=%d.\n",
+ IEEE80211_DEBUG_MGMT("MFIE_TYPE_SSID: '%s' len=%d.\n",
network->ssid, network->ssid_len);
break;
}
}
- IEEE80211_DEBUG_SCAN("MFIE_TYPE_RATES: '%s' (%d)\n",
+ IEEE80211_DEBUG_MGMT("MFIE_TYPE_RATES: '%s' (%d)\n",
rates_str, network->rates_len);
break;
}
}
- IEEE80211_DEBUG_SCAN("MFIE_TYPE_RATES_EX: '%s' (%d)\n",
+ IEEE80211_DEBUG_MGMT("MFIE_TYPE_RATES_EX: '%s' (%d)\n",
rates_str, network->rates_ex_len);
break;
case MFIE_TYPE_DS_SET:
- IEEE80211_DEBUG_SCAN("MFIE_TYPE_DS_SET: %d\n",
+ IEEE80211_DEBUG_MGMT("MFIE_TYPE_DS_SET: %d\n",
info_element->data[0]);
- if (stats->freq == IEEE80211_24GHZ_BAND)
- network->channel = info_element->data[0];
+ network->channel = info_element->data[0];
break;
case MFIE_TYPE_FH_SET:
- IEEE80211_DEBUG_SCAN("MFIE_TYPE_FH_SET: ignored\n");
+ IEEE80211_DEBUG_MGMT("MFIE_TYPE_FH_SET: ignored\n");
break;
case MFIE_TYPE_CF_SET:
- IEEE80211_DEBUG_SCAN("MFIE_TYPE_CF_SET: ignored\n");
+ IEEE80211_DEBUG_MGMT("MFIE_TYPE_CF_SET: ignored\n");
break;
case MFIE_TYPE_TIM:
- IEEE80211_DEBUG_SCAN("MFIE_TYPE_TIM: ignored\n");
+ network->tim.tim_count = info_element->data[0];
+ network->tim.tim_period = info_element->data[1];
+ IEEE80211_DEBUG_MGMT("MFIE_TYPE_TIM: partially ignored\n");
break;
case MFIE_TYPE_ERP_INFO:
network->erp_value = info_element->data[0];
- IEEE80211_DEBUG_SCAN("MFIE_TYPE_ERP_SET: %d\n",
+ IEEE80211_DEBUG_MGMT("MFIE_TYPE_ERP_SET: %d\n",
network->erp_value);
break;
case MFIE_TYPE_IBSS_SET:
network->atim_window = info_element->data[0];
- IEEE80211_DEBUG_SCAN("MFIE_TYPE_IBSS_SET: %d\n",
+ IEEE80211_DEBUG_MGMT("MFIE_TYPE_IBSS_SET: %d\n",
network->atim_window);
break;
case MFIE_TYPE_CHALLENGE:
- IEEE80211_DEBUG_SCAN("MFIE_TYPE_CHALLENGE: ignored\n");
+ IEEE80211_DEBUG_MGMT("MFIE_TYPE_CHALLENGE: ignored\n");
break;
case MFIE_TYPE_GENERIC:
- IEEE80211_DEBUG_SCAN("MFIE_TYPE_GENERIC: %d bytes\n",
+ IEEE80211_DEBUG_MGMT("MFIE_TYPE_GENERIC: %d bytes\n",
info_element->len);
if (!ieee80211_parse_qos_info_param_IE(info_element,
network))
break;
case MFIE_TYPE_RSN:
- IEEE80211_DEBUG_SCAN("MFIE_TYPE_RSN: %d bytes\n",
+ IEEE80211_DEBUG_MGMT("MFIE_TYPE_RSN: %d bytes\n",
info_element->len);
network->rsn_ie_len = min(info_element->len + 2,
MAX_WPA_IE_LEN);
printk(KERN_ERR
"QoS Error need to parse QOS_PARAMETER IE\n");
break;
+ /* 802.11h */
+ case MFIE_TYPE_POWER_CONSTRAINT:
+ network->power_constraint = info_element->data[0];
+ network->flags |= NETWORK_HAS_POWER_CONSTRAINT;
+ break;
+
+ case MFIE_TYPE_CSA:
+ network->power_constraint = info_element->data[0];
+ network->flags |= NETWORK_HAS_CSA;
+ break;
+
+ case MFIE_TYPE_QUIET:
+ network->quiet.count = info_element->data[0];
+ network->quiet.period = info_element->data[1];
+ network->quiet.duration = info_element->data[2];
+ network->quiet.offset = info_element->data[3];
+ network->flags |= NETWORK_HAS_QUIET;
+ break;
+
+ case MFIE_TYPE_IBSS_DFS:
+ if (network->ibss_dfs)
+ break;
+ network->ibss_dfs =
+ kmalloc(info_element->len, GFP_ATOMIC);
+ if (!network->ibss_dfs)
+ return 1;
+ memcpy(network->ibss_dfs, info_element->data,
+ info_element->len);
+ network->flags |= NETWORK_HAS_IBSS_DFS;
+ break;
+
+ case MFIE_TYPE_TPC_REPORT:
+ network->tpc_report.transmit_power =
+ info_element->data[0];
+ network->tpc_report.link_margin = info_element->data[1];
+ network->flags |= NETWORK_HAS_TPC_REPORT;
+ break;
default:
- IEEE80211_DEBUG_SCAN("unsupported IE %d\n",
- info_element->id);
+ IEEE80211_DEBUG_MGMT
+ ("Unsupported info element: %s (%d)\n",
+ get_info_element_string(info_element->id),
+ info_element->id);
break;
}
- left -= sizeof(*info_element) + info_element->len;
- info_element = (struct ieee80211_info_element *)
- &info_element->data[info_element->len];
+ length -= sizeof(*info_element) + info_element->len;
+ info_element =
+ (struct ieee80211_info_element *)&info_element->
+ data[info_element->len];
+ }
+
+ return 0;
+}
+
+static int ieee80211_handle_assoc_resp(struct ieee80211_device *ieee, struct ieee80211_assoc_response
+ *frame, struct ieee80211_rx_stats *stats)
+{
+ struct ieee80211_network network_resp = {
+ .ibss_dfs = NULL,
+ };
+ struct ieee80211_network *network = &network_resp;
+ struct net_device *dev = ieee->dev;
+
+ network->flags = 0;
+ network->qos_data.active = 0;
+ network->qos_data.supported = 0;
+ network->qos_data.param_count = 0;
+ network->qos_data.old_param_count = 0;
+
+ //network->atim_window = le16_to_cpu(frame->aid) & (0x3FFF);
+ network->atim_window = le16_to_cpu(frame->aid);
+ network->listen_interval = le16_to_cpu(frame->status);
+ memcpy(network->bssid, frame->header.addr3, ETH_ALEN);
+ network->capability = le16_to_cpu(frame->capability);
+ network->last_scanned = jiffies;
+ network->rates_len = network->rates_ex_len = 0;
+ network->last_associate = 0;
+ network->ssid_len = 0;
+ network->erp_value =
+ (network->capability & WLAN_CAPABILITY_IBSS) ? 0x3 : 0x0;
+
+ if (stats->freq == IEEE80211_52GHZ_BAND) {
+ /* for A band (No DS info) */
+ network->channel = stats->received_channel;
+ } else
+ network->flags |= NETWORK_HAS_CCK;
+
+ network->wpa_ie_len = 0;
+ network->rsn_ie_len = 0;
+
+ if (ieee80211_parse_info_param
+ (frame->info_element, stats->len - sizeof(*frame), network))
+ return 1;
+
+ network->mode = 0;
+ if (stats->freq == IEEE80211_52GHZ_BAND)
+ network->mode = IEEE_A;
+ else {
+ if (network->flags & NETWORK_HAS_OFDM)
+ network->mode |= IEEE_G;
+ if (network->flags & NETWORK_HAS_CCK)
+ network->mode |= IEEE_B;
}
+ if (ieee80211_is_empty_essid(network->ssid, network->ssid_len))
+ network->flags |= NETWORK_EMPTY_ESSID;
+
+ memcpy(&network->stats, stats, sizeof(network->stats));
+
+ if (ieee->handle_assoc_response != NULL)
+ ieee->handle_assoc_response(dev, frame, network);
+
+ return 0;
+}
+
+/***************************************************/
+
+static int ieee80211_network_init(struct ieee80211_device *ieee, struct ieee80211_probe_response
+ *beacon,
+ struct ieee80211_network *network,
+ struct ieee80211_rx_stats *stats)
+{
+ network->qos_data.active = 0;
+ network->qos_data.supported = 0;
+ network->qos_data.param_count = 0;
+ network->qos_data.old_param_count = 0;
+
+ /* Pull out fixed field data */
+ memcpy(network->bssid, beacon->header.addr3, ETH_ALEN);
+ network->capability = le16_to_cpu(beacon->capability);
+ network->last_scanned = jiffies;
+ network->time_stamp[0] = le32_to_cpu(beacon->time_stamp[0]);
+ network->time_stamp[1] = le32_to_cpu(beacon->time_stamp[1]);
+ network->beacon_interval = le16_to_cpu(beacon->beacon_interval);
+ /* Where to pull this? beacon->listen_interval; */
+ network->listen_interval = 0x0A;
+ network->rates_len = network->rates_ex_len = 0;
+ network->last_associate = 0;
+ network->ssid_len = 0;
+ network->flags = 0;
+ network->atim_window = 0;
+ network->erp_value = (network->capability & WLAN_CAPABILITY_IBSS) ?
+ 0x3 : 0x0;
+
+ if (stats->freq == IEEE80211_52GHZ_BAND) {
+ /* for A band (No DS info) */
+ network->channel = stats->received_channel;
+ } else
+ network->flags |= NETWORK_HAS_CCK;
+
+ network->wpa_ie_len = 0;
+ network->rsn_ie_len = 0;
+
+ if (ieee80211_parse_info_param
+ (beacon->info_element, stats->len - sizeof(*beacon), network))
+ return 1;
+
network->mode = 0;
if (stats->freq == IEEE80211_52GHZ_BAND)
network->mode = IEEE_A;
* as one network */
return ((src->ssid_len == dst->ssid_len) &&
(src->channel == dst->channel) &&
- !memcmp(src->bssid, dst->bssid, ETH_ALEN) &&
+ !compare_ether_addr(src->bssid, dst->bssid) &&
!memcmp(src->ssid, dst->ssid, src->ssid_len));
}
-static inline void update_network(struct ieee80211_network *dst,
+static void update_network(struct ieee80211_network *dst,
struct ieee80211_network *src)
{
int qos_active;
u8 old_param;
- memcpy(&dst->stats, &src->stats, sizeof(struct ieee80211_rx_stats));
+ ieee80211_network_reset(dst);
+ dst->ibss_dfs = src->ibss_dfs;
+
+ /* We only update the statistics if they were created by receiving
+ * the network information on the actual channel the network is on.
+ *
+ * This keeps beacons received on neighbor channels from bringing
+ * down the signal level of an AP. */
+ if (dst->channel == src->stats.received_channel)
+ memcpy(&dst->stats, &src->stats,
+ sizeof(struct ieee80211_rx_stats));
+ else
+ IEEE80211_DEBUG_SCAN("Network " MAC_FMT " info received "
+ "off channel (%d vs. %d)\n", MAC_ARG(src->bssid),
+ dst->channel, src->stats.received_channel);
+
dst->capability = src->capability;
memcpy(dst->rates, src->rates, src->rates_len);
dst->rates_len = src->rates_len;
dst->listen_interval = src->listen_interval;
dst->atim_window = src->atim_window;
dst->erp_value = src->erp_value;
+ dst->tim = src->tim;
memcpy(dst->wpa_ie, src->wpa_ie, src->wpa_ie_len);
dst->wpa_ie_len = src->wpa_ie_len;
/* dst->last_associate is not overwritten */
}
-static inline int is_beacon(int fc)
+static inline int is_beacon(__le16 fc)
{
return (WLAN_FC_GET_STYPE(le16_to_cpu(fc)) == IEEE80211_STYPE_BEACON);
}
-static inline void ieee80211_process_probe_response(struct ieee80211_device
+static void ieee80211_process_probe_response(struct ieee80211_device
*ieee, struct
ieee80211_probe_response
*beacon, struct ieee80211_rx_stats
*stats)
{
struct net_device *dev = ieee->dev;
- struct ieee80211_network network;
+ struct ieee80211_network network = {
+ .ibss_dfs = NULL,
+ };
struct ieee80211_network *target;
struct ieee80211_network *oldest = NULL;
#ifdef CONFIG_IEEE80211_DEBUG
escape_essid(info_element->data,
info_element->len),
MAC_ARG(beacon->header.addr3),
- is_beacon(le16_to_cpu
- (beacon->header.
- frame_ctl)) ?
+ is_beacon(beacon->header.frame_ctl) ?
"BEACON" : "PROBE RESPONSE");
return;
}
escape_essid(target->ssid,
target->ssid_len),
MAC_ARG(target->bssid));
+ ieee80211_network_reset(target);
} else {
/* Otherwise just pull from the free list */
target = list_entry(ieee->network_free_list.next,
escape_essid(network.ssid,
network.ssid_len),
MAC_ARG(network.bssid),
- is_beacon(le16_to_cpu
- (beacon->header.
- frame_ctl)) ?
+ is_beacon(beacon->header.frame_ctl) ?
"BEACON" : "PROBE RESPONSE");
#endif
memcpy(target, &network, sizeof(*target));
+ network.ibss_dfs = NULL;
list_add_tail(&target->list, &ieee->network_list);
} else {
IEEE80211_DEBUG_SCAN("Updating '%s' (" MAC_FMT ") via %s.\n",
escape_essid(target->ssid,
target->ssid_len),
MAC_ARG(target->bssid),
- is_beacon(le16_to_cpu
- (beacon->header.
- frame_ctl)) ?
+ is_beacon(beacon->header.frame_ctl) ?
"BEACON" : "PROBE RESPONSE");
update_network(target, &network);
+ network.ibss_dfs = NULL;
}
spin_unlock_irqrestore(&ieee->lock, flags);
- if (is_beacon(le16_to_cpu(beacon->header.frame_ctl))) {
+ if (is_beacon(beacon->header.frame_ctl)) {
if (ieee->handle_beacon != NULL)
- ieee->handle_beacon(dev, beacon, &network);
+ ieee->handle_beacon(dev, beacon, target);
} else {
if (ieee->handle_probe_response != NULL)
- ieee->handle_probe_response(dev, beacon, &network);
+ ieee->handle_probe_response(dev, beacon, target);
}
}
break;
case IEEE80211_STYPE_PROBE_REQ:
- IEEE80211_DEBUG_MGMT("recieved auth (%d)\n",
+ IEEE80211_DEBUG_MGMT("received auth (%d)\n",
WLAN_FC_GET_STYPE(le16_to_cpu
(header->frame_ctl)));
break;
case IEEE80211_STYPE_AUTH:
- IEEE80211_DEBUG_MGMT("recieved auth (%d)\n",
+ IEEE80211_DEBUG_MGMT("received auth (%d)\n",
WLAN_FC_GET_STYPE(le16_to_cpu
(header->frame_ctl)));
header);
break;
+ case IEEE80211_STYPE_ACTION:
+ IEEE80211_DEBUG_MGMT("ACTION\n");
+ if (ieee->handle_action)
+ ieee->handle_action(ieee->dev,
+ (struct ieee80211_action *)
+ header, stats);
+ break;
+
+ case IEEE80211_STYPE_REASSOC_REQ:
+ IEEE80211_DEBUG_MGMT("received reassoc (%d)\n",
+ WLAN_FC_GET_STYPE(le16_to_cpu
+ (header->frame_ctl)));
+
+ IEEE80211_WARNING("%s: IEEE80211_REASSOC_REQ received\n",
+ ieee->dev->name);
+ if (ieee->handle_reassoc_request != NULL)
+ ieee->handle_reassoc_request(ieee->dev,
+ (struct ieee80211_reassoc_request *)
+ header);
+ break;
+
+ case IEEE80211_STYPE_ASSOC_REQ:
+ IEEE80211_DEBUG_MGMT("received assoc (%d)\n",
+ WLAN_FC_GET_STYPE(le16_to_cpu
+ (header->frame_ctl)));
+
+ IEEE80211_WARNING("%s: IEEE80211_ASSOC_REQ received\n",
+ ieee->dev->name);
+ if (ieee->handle_assoc_request != NULL)
+ ieee->handle_assoc_request(ieee->dev);
+ break;
+
+ case IEEE80211_STYPE_DEAUTH:
+ IEEE80211_DEBUG_MGMT("DEAUTH\n");
+ if (ieee->handle_deauth != NULL)
+ ieee->handle_deauth(ieee->dev,
+ (struct ieee80211_deauth *)
+ header);
+ break;
default:
IEEE80211_DEBUG_MGMT("received UNKNOWN (%d)\n",
WLAN_FC_GET_STYPE(le16_to_cpu
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff