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path: root/drivers/net/wireless/hostap/hostap_ap.c
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Diffstat (limited to 'drivers/net/wireless/hostap/hostap_ap.c')
-rw-r--r--drivers/net/wireless/hostap/hostap_ap.c146
1 files changed, 68 insertions, 78 deletions
diff --git a/drivers/net/wireless/hostap/hostap_ap.c b/drivers/net/wireless/hostap/hostap_ap.c
index 0903db786d5f..a2a203c90ba3 100644
--- a/drivers/net/wireless/hostap/hostap_ap.c
+++ b/drivers/net/wireless/hostap/hostap_ap.c
@@ -19,6 +19,7 @@
#include <linux/proc_fs.h>
#include <linux/delay.h>
#include <linux/random.h>
+#include <linux/if_arp.h>
#include "hostap_wlan.h"
#include "hostap.h"
@@ -588,28 +589,24 @@ void hostap_check_sta_fw_version(struct ap_data *ap, int sta_fw_ver)
static void hostap_ap_tx_cb(struct sk_buff *skb, int ok, void *data)
{
struct ap_data *ap = data;
- u16 fc;
- struct ieee80211_hdr_4addr *hdr;
+ struct ieee80211_hdr *hdr;
if (!ap->local->hostapd || !ap->local->apdev) {
dev_kfree_skb(skb);
return;
}
- hdr = (struct ieee80211_hdr_4addr *) skb->data;
- fc = le16_to_cpu(hdr->frame_ctl);
-
/* Pass the TX callback frame to the hostapd; use 802.11 header version
* 1 to indicate failure (no ACK) and 2 success (frame ACKed) */
- fc &= ~IEEE80211_FCTL_VERS;
- fc |= ok ? BIT(1) : BIT(0);
- hdr->frame_ctl = cpu_to_le16(fc);
+ hdr = (struct ieee80211_hdr *) skb->data;
+ hdr->frame_control &= cpu_to_le16(~IEEE80211_FCTL_VERS);
+ hdr->frame_control |= cpu_to_le16(ok ? BIT(1) : BIT(0));
skb->dev = ap->local->apdev;
- skb_pull(skb, hostap_80211_get_hdrlen(fc));
+ skb_pull(skb, hostap_80211_get_hdrlen(hdr->frame_control));
skb->pkt_type = PACKET_OTHERHOST;
- skb->protocol = __constant_htons(ETH_P_802_2);
+ skb->protocol = cpu_to_be16(ETH_P_802_2);
memset(skb->cb, 0, sizeof(skb->cb));
netif_rx(skb);
}
@@ -621,8 +618,8 @@ static void hostap_ap_tx_cb_auth(struct sk_buff *skb, int ok, void *data)
{
struct ap_data *ap = data;
struct net_device *dev = ap->local->dev;
- struct ieee80211_hdr_4addr *hdr;
- u16 fc, auth_alg, auth_transaction, status;
+ struct ieee80211_hdr *hdr;
+ u16 auth_alg, auth_transaction, status;
__le16 *pos;
struct sta_info *sta = NULL;
char *txt = NULL;
@@ -632,10 +629,8 @@ static void hostap_ap_tx_cb_auth(struct sk_buff *skb, int ok, void *data)
return;
}
- hdr = (struct ieee80211_hdr_4addr *) skb->data;
- fc = le16_to_cpu(hdr->frame_ctl);
- if (WLAN_FC_GET_TYPE(fc) != IEEE80211_FTYPE_MGMT ||
- WLAN_FC_GET_STYPE(fc) != IEEE80211_STYPE_AUTH ||
+ hdr = (struct ieee80211_hdr *) skb->data;
+ if (!ieee80211_is_auth(hdr->frame_control) ||
skb->len < IEEE80211_MGMT_HDR_LEN + 6) {
printk(KERN_DEBUG "%s: hostap_ap_tx_cb_auth received invalid "
"frame\n", dev->name);
@@ -691,7 +686,7 @@ static void hostap_ap_tx_cb_assoc(struct sk_buff *skb, int ok, void *data)
{
struct ap_data *ap = data;
struct net_device *dev = ap->local->dev;
- struct ieee80211_hdr_4addr *hdr;
+ struct ieee80211_hdr *hdr;
u16 fc, status;
__le16 *pos;
struct sta_info *sta = NULL;
@@ -702,11 +697,10 @@ static void hostap_ap_tx_cb_assoc(struct sk_buff *skb, int ok, void *data)
return;
}
- hdr = (struct ieee80211_hdr_4addr *) skb->data;
- fc = le16_to_cpu(hdr->frame_ctl);
- if (WLAN_FC_GET_TYPE(fc) != IEEE80211_FTYPE_MGMT ||
- (WLAN_FC_GET_STYPE(fc) != IEEE80211_STYPE_ASSOC_RESP &&
- WLAN_FC_GET_STYPE(fc) != IEEE80211_STYPE_REASSOC_RESP) ||
+ hdr = (struct ieee80211_hdr *) skb->data;
+ fc = le16_to_cpu(hdr->frame_control);
+ if ((!ieee80211_is_assoc_resp(hdr->frame_control) &&
+ !ieee80211_is_reassoc_resp(hdr->frame_control)) ||
skb->len < IEEE80211_MGMT_HDR_LEN + 4) {
printk(KERN_DEBUG "%s: hostap_ap_tx_cb_assoc received invalid "
"frame\n", dev->name);
@@ -757,12 +751,12 @@ static void hostap_ap_tx_cb_assoc(struct sk_buff *skb, int ok, void *data)
static void hostap_ap_tx_cb_poll(struct sk_buff *skb, int ok, void *data)
{
struct ap_data *ap = data;
- struct ieee80211_hdr_4addr *hdr;
+ struct ieee80211_hdr *hdr;
struct sta_info *sta;
if (skb->len < 24)
goto fail;
- hdr = (struct ieee80211_hdr_4addr *) skb->data;
+ hdr = (struct ieee80211_hdr *) skb->data;
if (ok) {
spin_lock(&ap->sta_table_lock);
sta = ap_get_sta(ap, hdr->addr1);
@@ -917,7 +911,7 @@ static void prism2_send_mgmt(struct net_device *dev,
{
struct hostap_interface *iface;
local_info_t *local;
- struct ieee80211_hdr_4addr *hdr;
+ struct ieee80211_hdr *hdr;
u16 fc;
struct sk_buff *skb;
struct hostap_skb_tx_data *meta;
@@ -942,8 +936,8 @@ static void prism2_send_mgmt(struct net_device *dev,
}
fc = type_subtype;
- hdrlen = hostap_80211_get_hdrlen(fc);
- hdr = (struct ieee80211_hdr_4addr *) skb_put(skb, hdrlen);
+ hdrlen = hostap_80211_get_hdrlen(cpu_to_le16(type_subtype));
+ hdr = (struct ieee80211_hdr *) skb_put(skb, hdrlen);
if (body)
memcpy(skb_put(skb, body_len), body, body_len);
@@ -954,11 +948,11 @@ static void prism2_send_mgmt(struct net_device *dev,
memcpy(hdr->addr1, addr, ETH_ALEN); /* DA / RA */
- if (WLAN_FC_GET_TYPE(fc) == IEEE80211_FTYPE_DATA) {
+ if (ieee80211_is_data(hdr->frame_control)) {
fc |= IEEE80211_FCTL_FROMDS;
memcpy(hdr->addr2, dev->dev_addr, ETH_ALEN); /* BSSID */
memcpy(hdr->addr3, dev->dev_addr, ETH_ALEN); /* SA */
- } else if (WLAN_FC_GET_TYPE(fc) == IEEE80211_FTYPE_CTL) {
+ } else if (ieee80211_is_ctl(hdr->frame_control)) {
/* control:ACK does not have addr2 or addr3 */
memset(hdr->addr2, 0, ETH_ALEN);
memset(hdr->addr3, 0, ETH_ALEN);
@@ -967,7 +961,7 @@ static void prism2_send_mgmt(struct net_device *dev,
memcpy(hdr->addr3, dev->dev_addr, ETH_ALEN); /* BSSID */
}
- hdr->frame_ctl = cpu_to_le16(fc);
+ hdr->frame_control = cpu_to_le16(fc);
meta = (struct hostap_skb_tx_data *) skb->cb;
memset(meta, 0, sizeof(*meta));
@@ -1284,22 +1278,21 @@ static void handle_authen(local_info_t *local, struct sk_buff *skb,
struct hostap_80211_rx_status *rx_stats)
{
struct net_device *dev = local->dev;
- struct ieee80211_hdr_4addr *hdr = (struct ieee80211_hdr_4addr *) skb->data;
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
size_t hdrlen;
struct ap_data *ap = local->ap;
char body[8 + WLAN_AUTH_CHALLENGE_LEN], *challenge = NULL;
int len, olen;
u16 auth_alg, auth_transaction, status_code;
__le16 *pos;
- u16 resp = WLAN_STATUS_SUCCESS, fc;
+ u16 resp = WLAN_STATUS_SUCCESS;
struct sta_info *sta = NULL;
struct lib80211_crypt_data *crypt;
char *txt = "";
len = skb->len - IEEE80211_MGMT_HDR_LEN;
- fc = le16_to_cpu(hdr->frame_ctl);
- hdrlen = hostap_80211_get_hdrlen(fc);
+ hdrlen = hostap_80211_get_hdrlen(hdr->frame_control);
if (len < 6) {
PDEBUG(DEBUG_AP, "%s: handle_authen - too short payload "
@@ -1435,7 +1428,7 @@ static void handle_authen(local_info_t *local, struct sk_buff *skb,
challenge == NULL ||
memcmp(sta->u.sta.challenge, challenge,
WLAN_AUTH_CHALLENGE_LEN) != 0 ||
- !(fc & IEEE80211_FCTL_PROTECTED)) {
+ !ieee80211_has_protected(hdr->frame_control)) {
txt = "challenge response incorrect";
resp = WLAN_STATUS_CHALLENGE_FAIL;
goto fail;
@@ -1488,7 +1481,7 @@ static void handle_authen(local_info_t *local, struct sk_buff *skb,
"trans#=%d stat=%d len=%d fc=%04x) ==> %d (%s)\n",
dev->name, hdr->addr2,
auth_alg, auth_transaction, status_code, len,
- fc, resp, txt);
+ le16_to_cpu(hdr->frame_control), resp, txt);
}
}
@@ -1498,7 +1491,7 @@ static void handle_assoc(local_info_t *local, struct sk_buff *skb,
struct hostap_80211_rx_status *rx_stats, int reassoc)
{
struct net_device *dev = local->dev;
- struct ieee80211_hdr_4addr *hdr = (struct ieee80211_hdr_4addr *) skb->data;
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
char body[12], *p, *lpos;
int len, left;
__le16 *pos;
@@ -1707,7 +1700,7 @@ static void handle_deauth(local_info_t *local, struct sk_buff *skb,
struct hostap_80211_rx_status *rx_stats)
{
struct net_device *dev = local->dev;
- struct ieee80211_hdr_4addr *hdr = (struct ieee80211_hdr_4addr *) skb->data;
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
char *body = (char *) (skb->data + IEEE80211_MGMT_HDR_LEN);
int len;
u16 reason_code;
@@ -1749,7 +1742,7 @@ static void handle_disassoc(local_info_t *local, struct sk_buff *skb,
struct hostap_80211_rx_status *rx_stats)
{
struct net_device *dev = local->dev;
- struct ieee80211_hdr_4addr *hdr = (struct ieee80211_hdr_4addr *) skb->data;
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
char *body = skb->data + IEEE80211_MGMT_HDR_LEN;
int len;
u16 reason_code;
@@ -1788,7 +1781,7 @@ static void handle_disassoc(local_info_t *local, struct sk_buff *skb,
/* Called only as a scheduled task for pending AP frames. */
static void ap_handle_data_nullfunc(local_info_t *local,
- struct ieee80211_hdr_4addr *hdr)
+ struct ieee80211_hdr *hdr)
{
struct net_device *dev = local->dev;
@@ -1805,7 +1798,7 @@ static void ap_handle_data_nullfunc(local_info_t *local,
/* Called only as a scheduled task for pending AP frames. */
static void ap_handle_dropped_data(local_info_t *local,
- struct ieee80211_hdr_4addr *hdr)
+ struct ieee80211_hdr *hdr)
{
struct net_device *dev = local->dev;
struct sta_info *sta;
@@ -1863,7 +1856,7 @@ static void pspoll_send_buffered(local_info_t *local, struct sta_info *sta,
/* Called only as a scheduled task for pending AP frames. */
static void handle_pspoll(local_info_t *local,
- struct ieee80211_hdr_4addr *hdr,
+ struct ieee80211_hdr *hdr,
struct hostap_80211_rx_status *rx_stats)
{
struct net_device *dev = local->dev;
@@ -1872,8 +1865,7 @@ static void handle_pspoll(local_info_t *local,
struct sk_buff *skb;
PDEBUG(DEBUG_PS2, "handle_pspoll: BSSID=%pM, TA=%pM PWRMGT=%d\n",
- hdr->addr1, hdr->addr2,
- !!(le16_to_cpu(hdr->frame_ctl) & IEEE80211_FCTL_PM));
+ hdr->addr1, hdr->addr2, !!ieee80211_has_pm(hdr->frame_control));
if (memcmp(hdr->addr1, dev->dev_addr, ETH_ALEN)) {
PDEBUG(DEBUG_AP,
@@ -1984,7 +1976,7 @@ static void handle_wds_oper_queue(struct work_struct *work)
static void handle_beacon(local_info_t *local, struct sk_buff *skb,
struct hostap_80211_rx_status *rx_stats)
{
- struct ieee80211_hdr_4addr *hdr = (struct ieee80211_hdr_4addr *) skb->data;
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
char *body = skb->data + IEEE80211_MGMT_HDR_LEN;
int len, left;
u16 beacon_int, capability;
@@ -2143,14 +2135,14 @@ static void handle_ap_item(local_info_t *local, struct sk_buff *skb,
struct net_device *dev = local->dev;
#endif /* PRISM2_NO_KERNEL_IEEE80211_MGMT */
u16 fc, type, stype;
- struct ieee80211_hdr_4addr *hdr;
+ struct ieee80211_hdr *hdr;
/* FIX: should give skb->len to handler functions and check that the
* buffer is long enough */
- hdr = (struct ieee80211_hdr_4addr *) skb->data;
- fc = le16_to_cpu(hdr->frame_ctl);
- type = WLAN_FC_GET_TYPE(fc);
- stype = WLAN_FC_GET_STYPE(fc);
+ hdr = (struct ieee80211_hdr *) skb->data;
+ fc = le16_to_cpu(hdr->frame_control);
+ type = fc & IEEE80211_FCTL_FTYPE;
+ stype = fc & IEEE80211_FCTL_STYPE;
#ifndef PRISM2_NO_KERNEL_IEEE80211_MGMT
if (!local->hostapd && type == IEEE80211_FTYPE_DATA) {
@@ -2262,8 +2254,7 @@ void hostap_rx(struct net_device *dev, struct sk_buff *skb,
{
struct hostap_interface *iface;
local_info_t *local;
- u16 fc;
- struct ieee80211_hdr_4addr *hdr;
+ struct ieee80211_hdr *hdr;
iface = netdev_priv(dev);
local = iface->local;
@@ -2271,17 +2262,15 @@ void hostap_rx(struct net_device *dev, struct sk_buff *skb,
if (skb->len < 16)
goto drop;
- local->stats.rx_packets++;
+ dev->stats.rx_packets++;
- hdr = (struct ieee80211_hdr_4addr *) skb->data;
- fc = le16_to_cpu(hdr->frame_ctl);
+ hdr = (struct ieee80211_hdr *) skb->data;
if (local->ap->ap_policy == AP_OTHER_AP_SKIP_ALL &&
- WLAN_FC_GET_TYPE(fc) == IEEE80211_FTYPE_MGMT &&
- WLAN_FC_GET_STYPE(fc) == IEEE80211_STYPE_BEACON)
+ ieee80211_is_beacon(hdr->frame_control))
goto drop;
- skb->protocol = __constant_htons(ETH_P_HOSTAP);
+ skb->protocol = cpu_to_be16(ETH_P_HOSTAP);
handle_ap_item(local, skb, rx_stats);
return;
@@ -2294,7 +2283,7 @@ void hostap_rx(struct net_device *dev, struct sk_buff *skb,
static void schedule_packet_send(local_info_t *local, struct sta_info *sta)
{
struct sk_buff *skb;
- struct ieee80211_hdr_4addr *hdr;
+ struct ieee80211_hdr *hdr;
struct hostap_80211_rx_status rx_stats;
if (skb_queue_empty(&sta->tx_buf))
@@ -2307,10 +2296,10 @@ static void schedule_packet_send(local_info_t *local, struct sta_info *sta)
return;
}
- hdr = (struct ieee80211_hdr_4addr *) skb_put(skb, 16);
+ hdr = (struct ieee80211_hdr *) skb_put(skb, 16);
/* Generate a fake pspoll frame to start packet delivery */
- hdr->frame_ctl = __constant_cpu_to_le16(
+ hdr->frame_control = cpu_to_le16(
IEEE80211_FTYPE_CTL | IEEE80211_STYPE_PSPOLL);
memcpy(hdr->addr1, local->dev->dev_addr, ETH_ALEN);
memcpy(hdr->addr2, sta->addr, ETH_ALEN);
@@ -2689,7 +2678,7 @@ ap_tx_ret hostap_handle_sta_tx(local_info_t *local, struct hostap_tx_data *tx)
struct sta_info *sta = NULL;
struct sk_buff *skb = tx->skb;
int set_tim, ret;
- struct ieee80211_hdr_4addr *hdr;
+ struct ieee80211_hdr *hdr;
struct hostap_skb_tx_data *meta;
meta = (struct hostap_skb_tx_data *) skb->cb;
@@ -2698,7 +2687,7 @@ ap_tx_ret hostap_handle_sta_tx(local_info_t *local, struct hostap_tx_data *tx)
meta->iface->type == HOSTAP_INTERFACE_STA)
goto out;
- hdr = (struct ieee80211_hdr_4addr *) skb->data;
+ hdr = (struct ieee80211_hdr *) skb->data;
if (hdr->addr1[0] & 0x01) {
/* broadcast/multicast frame - no AP related processing */
@@ -2753,8 +2742,8 @@ ap_tx_ret hostap_handle_sta_tx(local_info_t *local, struct hostap_tx_data *tx)
if (meta->flags & HOSTAP_TX_FLAGS_ADD_MOREDATA) {
/* indicate to STA that more frames follow */
- hdr->frame_ctl |=
- __constant_cpu_to_le16(IEEE80211_FCTL_MOREDATA);
+ hdr->frame_control |=
+ cpu_to_le16(IEEE80211_FCTL_MOREDATA);
}
if (meta->flags & HOSTAP_TX_FLAGS_BUFFERED_FRAME) {
@@ -2828,10 +2817,10 @@ void hostap_handle_sta_release(void *ptr)
void hostap_handle_sta_tx_exc(local_info_t *local, struct sk_buff *skb)
{
struct sta_info *sta;
- struct ieee80211_hdr_4addr *hdr;
+ struct ieee80211_hdr *hdr;
struct hostap_skb_tx_data *meta;
- hdr = (struct ieee80211_hdr_4addr *) skb->data;
+ hdr = (struct ieee80211_hdr *) skb->data;
meta = (struct hostap_skb_tx_data *) skb->cb;
spin_lock(&local->ap->sta_table_lock);
@@ -2898,8 +2887,8 @@ static void hostap_update_sta_ps2(local_info_t *local, struct sta_info *sta,
/* Called only as a tasklet (software IRQ). Called for each RX frame to update
- * STA power saving state. pwrmgt is a flag from 802.11 frame_ctl field. */
-int hostap_update_sta_ps(local_info_t *local, struct ieee80211_hdr_4addr *hdr)
+ * STA power saving state. pwrmgt is a flag from 802.11 frame_control field. */
+int hostap_update_sta_ps(local_info_t *local, struct ieee80211_hdr *hdr)
{
struct sta_info *sta;
u16 fc;
@@ -2913,9 +2902,10 @@ int hostap_update_sta_ps(local_info_t *local, struct ieee80211_hdr_4addr *hdr)
if (!sta)
return -1;
- fc = le16_to_cpu(hdr->frame_ctl);
+ fc = le16_to_cpu(hdr->frame_control);
hostap_update_sta_ps2(local, sta, fc & IEEE80211_FCTL_PM,
- WLAN_FC_GET_TYPE(fc), WLAN_FC_GET_STYPE(fc));
+ fc & IEEE80211_FCTL_FTYPE,
+ fc & IEEE80211_FCTL_STYPE);
atomic_dec(&sta->users);
return 0;
@@ -2932,16 +2922,16 @@ ap_rx_ret hostap_handle_sta_rx(local_info_t *local, struct net_device *dev,
int ret;
struct sta_info *sta;
u16 fc, type, stype;
- struct ieee80211_hdr_4addr *hdr;
+ struct ieee80211_hdr *hdr;
if (local->ap == NULL)
return AP_RX_CONTINUE;
- hdr = (struct ieee80211_hdr_4addr *) skb->data;
+ hdr = (struct ieee80211_hdr *) skb->data;
- fc = le16_to_cpu(hdr->frame_ctl);
- type = WLAN_FC_GET_TYPE(fc);
- stype = WLAN_FC_GET_STYPE(fc);
+ fc = le16_to_cpu(hdr->frame_control);
+ type = fc & IEEE80211_FCTL_FTYPE;
+ stype = fc & IEEE80211_FCTL_STYPE;
spin_lock(&local->ap->sta_table_lock);
sta = ap_get_sta(local->ap, hdr->addr2);
@@ -3064,7 +3054,7 @@ ap_rx_ret hostap_handle_sta_rx(local_info_t *local, struct net_device *dev,
/* Called only as a tasklet (software IRQ) */
int hostap_handle_sta_crypto(local_info_t *local,
- struct ieee80211_hdr_4addr *hdr,
+ struct ieee80211_hdr *hdr,
struct lib80211_crypt_data **crypt,
void **sta_ptr)
{
@@ -3166,7 +3156,7 @@ int hostap_add_sta(struct ap_data *ap, u8 *sta_addr)
/* Called only as a tasklet (software IRQ) */
int hostap_update_rx_stats(struct ap_data *ap,
- struct ieee80211_hdr_4addr *hdr,
+ struct ieee80211_hdr *hdr,
struct hostap_80211_rx_status *rx_stats)
{
struct sta_info *sta;
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.