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path: root/drivers/net/wireless/hostap/hostap_80211_tx.c
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Diffstat (limited to 'drivers/net/wireless/hostap/hostap_80211_tx.c')
-rw-r--r--drivers/net/wireless/hostap/hostap_80211_tx.c111
1 files changed, 58 insertions, 53 deletions
diff --git a/drivers/net/wireless/hostap/hostap_80211_tx.c b/drivers/net/wireless/hostap/hostap_80211_tx.c
index 078a010f39a..8bde7768946 100644
--- a/drivers/net/wireless/hostap/hostap_80211_tx.c
+++ b/drivers/net/wireless/hostap/hostap_80211_tx.c
@@ -1,3 +1,7 @@
+#include <linux/slab.h>
+#include <linux/export.h>
+#include <linux/etherdevice.h>
+
#include "hostap_80211.h"
#include "hostap_common.h"
#include "hostap_wlan.h"
@@ -15,10 +19,10 @@ static unsigned char bridge_tunnel_header[] =
void hostap_dump_tx_80211(const char *name, struct sk_buff *skb)
{
- struct ieee80211_hdr_4addr *hdr;
+ struct ieee80211_hdr *hdr;
u16 fc;
- hdr = (struct ieee80211_hdr_4addr *) skb->data;
+ hdr = (struct ieee80211_hdr *) skb->data;
printk(KERN_DEBUG "%s: TX len=%d jiffies=%ld\n",
name, skb->len, jiffies);
@@ -26,9 +30,10 @@ void hostap_dump_tx_80211(const char *name, struct sk_buff *skb)
if (skb->len < 2)
return;
- fc = le16_to_cpu(hdr->frame_ctl);
+ fc = le16_to_cpu(hdr->frame_control);
printk(KERN_DEBUG " FC=0x%04x (type=%d:%d)%s%s",
- fc, WLAN_FC_GET_TYPE(fc) >> 2, WLAN_FC_GET_STYPE(fc) >> 4,
+ fc, (fc & IEEE80211_FCTL_FTYPE) >> 2,
+ (fc & IEEE80211_FCTL_STYPE) >> 4,
fc & IEEE80211_FCTL_TODS ? " [ToDS]" : "",
fc & IEEE80211_FCTL_FROMDS ? " [FromDS]" : "");
@@ -38,7 +43,7 @@ void hostap_dump_tx_80211(const char *name, struct sk_buff *skb)
}
printk(" dur=0x%04x seq=0x%04x\n", le16_to_cpu(hdr->duration_id),
- le16_to_cpu(hdr->seq_ctl));
+ le16_to_cpu(hdr->seq_ctrl));
printk(KERN_DEBUG " A1=%pM", hdr->addr1);
printk(" A2=%pM", hdr->addr2);
@@ -52,12 +57,13 @@ void hostap_dump_tx_80211(const char *name, struct sk_buff *skb)
/* hard_start_xmit function for data interfaces (wlan#, wlan#wds#, wlan#sta)
* Convert Ethernet header into a suitable IEEE 802.11 header depending on
* device configuration. */
-int hostap_data_start_xmit(struct sk_buff *skb, struct net_device *dev)
+netdev_tx_t hostap_data_start_xmit(struct sk_buff *skb,
+ struct net_device *dev)
{
struct hostap_interface *iface;
local_info_t *local;
int need_headroom, need_tailroom = 0;
- struct ieee80211_hdr_4addr hdr;
+ struct ieee80211_hdr hdr;
u16 fc, ethertype = 0;
enum {
WDS_NO = 0, WDS_OWN_FRAME, WDS_COMPLIANT_FRAME
@@ -74,7 +80,7 @@ int hostap_data_start_xmit(struct sk_buff *skb, struct net_device *dev)
printk(KERN_DEBUG "%s: hostap_data_start_xmit: short skb "
"(len=%d)\n", dev->name, skb->len);
kfree_skb(skb);
- return 0;
+ return NETDEV_TX_OK;
}
if (local->ddev != dev) {
@@ -88,18 +94,17 @@ int hostap_data_start_xmit(struct sk_buff *skb, struct net_device *dev)
printk(KERN_DEBUG "%s: prism2_tx: trying to use "
"AP device with Ethernet net dev\n", dev->name);
kfree_skb(skb);
- return 0;
+ return NETDEV_TX_OK;
}
} else {
if (local->iw_mode == IW_MODE_REPEAT) {
printk(KERN_DEBUG "%s: prism2_tx: trying to use "
"non-WDS link in Repeater mode\n", dev->name);
kfree_skb(skb);
- return 0;
+ return NETDEV_TX_OK;
} else if (local->iw_mode == IW_MODE_INFRA &&
(local->wds_type & HOSTAP_WDS_AP_CLIENT) &&
- memcmp(skb->data + ETH_ALEN, dev->dev_addr,
- ETH_ALEN) != 0) {
+ !ether_addr_equal(skb->data + ETH_ALEN, dev->dev_addr)) {
/* AP client mode: send frames with foreign src addr
* using 4-addr WDS frames */
use_wds = WDS_COMPLIANT_FRAME;
@@ -201,7 +206,7 @@ int hostap_data_start_xmit(struct sk_buff *skb, struct net_device *dev)
memcpy(&hdr.addr3, local->bssid, ETH_ALEN);
}
- hdr.frame_ctl = cpu_to_le16(fc);
+ hdr.frame_control = cpu_to_le16(fc);
skb_pull(skb, skip_header_bytes);
need_headroom = local->func->need_tx_headroom + hdr_len + encaps_len;
@@ -209,13 +214,13 @@ int hostap_data_start_xmit(struct sk_buff *skb, struct net_device *dev)
skb = skb_unshare(skb, GFP_ATOMIC);
if (skb == NULL) {
iface->stats.tx_dropped++;
- return 0;
+ return NETDEV_TX_OK;
}
if (pskb_expand_head(skb, need_headroom, need_tailroom,
GFP_ATOMIC)) {
kfree_skb(skb);
iface->stats.tx_dropped++;
- return 0;
+ return NETDEV_TX_OK;
}
} else if (skb_headroom(skb) < need_headroom) {
struct sk_buff *tmp = skb;
@@ -223,13 +228,13 @@ int hostap_data_start_xmit(struct sk_buff *skb, struct net_device *dev)
kfree_skb(tmp);
if (skb == NULL) {
iface->stats.tx_dropped++;
- return 0;
+ return NETDEV_TX_OK;
}
} else {
skb = skb_unshare(skb, GFP_ATOMIC);
if (skb == NULL) {
iface->stats.tx_dropped++;
- return 0;
+ return NETDEV_TX_OK;
}
}
@@ -255,17 +260,18 @@ int hostap_data_start_xmit(struct sk_buff *skb, struct net_device *dev)
/* Send IEEE 802.11 encapsulated frame using the master radio device */
skb->dev = local->dev;
dev_queue_xmit(skb);
- return 0;
+ return NETDEV_TX_OK;
}
/* hard_start_xmit function for hostapd wlan#ap interfaces */
-int hostap_mgmt_start_xmit(struct sk_buff *skb, struct net_device *dev)
+netdev_tx_t hostap_mgmt_start_xmit(struct sk_buff *skb,
+ struct net_device *dev)
{
struct hostap_interface *iface;
local_info_t *local;
struct hostap_skb_tx_data *meta;
- struct ieee80211_hdr_4addr *hdr;
+ struct ieee80211_hdr *hdr;
u16 fc;
iface = netdev_priv(dev);
@@ -275,7 +281,7 @@ int hostap_mgmt_start_xmit(struct sk_buff *skb, struct net_device *dev)
printk(KERN_DEBUG "%s: hostap_mgmt_start_xmit: short skb "
"(len=%d)\n", dev->name, skb->len);
kfree_skb(skb);
- return 0;
+ return NETDEV_TX_OK;
}
iface->stats.tx_packets++;
@@ -287,10 +293,10 @@ int hostap_mgmt_start_xmit(struct sk_buff *skb, struct net_device *dev)
meta->iface = iface;
if (skb->len >= IEEE80211_DATA_HDR3_LEN + sizeof(rfc1042_header) + 2) {
- hdr = (struct ieee80211_hdr_4addr *) skb->data;
- fc = le16_to_cpu(hdr->frame_ctl);
- if (WLAN_FC_GET_TYPE(fc) == IEEE80211_FTYPE_DATA &&
- WLAN_FC_GET_STYPE(fc) == IEEE80211_STYPE_DATA) {
+ hdr = (struct ieee80211_hdr *) skb->data;
+ fc = le16_to_cpu(hdr->frame_control);
+ if (ieee80211_is_data(hdr->frame_control) &&
+ (fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_DATA) {
u8 *pos = &skb->data[IEEE80211_DATA_HDR3_LEN +
sizeof(rfc1042_header)];
meta->ethertype = (pos[0] << 8) | pos[1];
@@ -300,7 +306,7 @@ int hostap_mgmt_start_xmit(struct sk_buff *skb, struct net_device *dev)
/* Send IEEE 802.11 encapsulated frame using the master radio device */
skb->dev = local->dev;
dev_queue_xmit(skb);
- return 0;
+ return NETDEV_TX_OK;
}
@@ -310,8 +316,7 @@ static struct sk_buff * hostap_tx_encrypt(struct sk_buff *skb,
{
struct hostap_interface *iface;
local_info_t *local;
- struct ieee80211_hdr_4addr *hdr;
- u16 fc;
+ struct ieee80211_hdr *hdr;
int prefix_len, postfix_len, hdr_len, res;
iface = netdev_priv(skb->dev);
@@ -324,7 +329,7 @@ static struct sk_buff * hostap_tx_encrypt(struct sk_buff *skb,
if (local->tkip_countermeasures &&
strcmp(crypt->ops->name, "TKIP") == 0) {
- hdr = (struct ieee80211_hdr_4addr *) skb->data;
+ hdr = (struct ieee80211_hdr *) skb->data;
if (net_ratelimit()) {
printk(KERN_DEBUG "%s: TKIP countermeasures: dropped "
"TX packet to %pM\n",
@@ -349,9 +354,8 @@ static struct sk_buff * hostap_tx_encrypt(struct sk_buff *skb,
return NULL;
}
- hdr = (struct ieee80211_hdr_4addr *) skb->data;
- fc = le16_to_cpu(hdr->frame_ctl);
- hdr_len = hostap_80211_get_hdrlen(fc);
+ hdr = (struct ieee80211_hdr *) skb->data;
+ hdr_len = hostap_80211_get_hdrlen(hdr->frame_control);
/* Host-based IEEE 802.11 fragmentation for TX is not yet supported, so
* call both MSDU and MPDU encryption functions from here. */
@@ -374,17 +378,18 @@ static struct sk_buff * hostap_tx_encrypt(struct sk_buff *skb,
/* hard_start_xmit function for master radio interface wifi#.
* AP processing (TX rate control, power save buffering, etc.).
* Use hardware TX function to send the frame. */
-int hostap_master_start_xmit(struct sk_buff *skb, struct net_device *dev)
+netdev_tx_t hostap_master_start_xmit(struct sk_buff *skb,
+ struct net_device *dev)
{
struct hostap_interface *iface;
local_info_t *local;
- int ret = 1;
+ netdev_tx_t ret = NETDEV_TX_BUSY;
u16 fc;
struct hostap_tx_data tx;
ap_tx_ret tx_ret;
struct hostap_skb_tx_data *meta;
int no_encrypt = 0;
- struct ieee80211_hdr_4addr *hdr;
+ struct ieee80211_hdr *hdr;
iface = netdev_priv(dev);
local = iface->local;
@@ -397,7 +402,7 @@ int hostap_master_start_xmit(struct sk_buff *skb, struct net_device *dev)
printk(KERN_DEBUG "%s: invalid skb->cb magic (0x%08x, "
"expected 0x%08x)\n",
dev->name, meta->magic, HOSTAP_SKB_TX_DATA_MAGIC);
- ret = 0;
+ ret = NETDEV_TX_OK;
iface->stats.tx_dropped++;
goto fail;
}
@@ -415,7 +420,7 @@ int hostap_master_start_xmit(struct sk_buff *skb, struct net_device *dev)
if (skb->len < 24) {
printk(KERN_DEBUG "%s: hostap_master_start_xmit: short skb "
"(len=%d)\n", dev->name, skb->len);
- ret = 0;
+ ret = NETDEV_TX_OK;
iface->stats.tx_dropped++;
goto fail;
}
@@ -427,14 +432,14 @@ int hostap_master_start_xmit(struct sk_buff *skb, struct net_device *dev)
tx_ret = hostap_handle_sta_tx(local, &tx);
skb = tx.skb;
meta = (struct hostap_skb_tx_data *) skb->cb;
- hdr = (struct ieee80211_hdr_4addr *) skb->data;
- fc = le16_to_cpu(hdr->frame_ctl);
+ hdr = (struct ieee80211_hdr *) skb->data;
+ fc = le16_to_cpu(hdr->frame_control);
switch (tx_ret) {
case AP_TX_CONTINUE:
break;
case AP_TX_CONTINUE_NOT_AUTHORIZED:
if (local->ieee_802_1x &&
- WLAN_FC_GET_TYPE(fc) == IEEE80211_FTYPE_DATA &&
+ ieee80211_is_data(hdr->frame_control) &&
meta->ethertype != ETH_P_PAE &&
!(meta->flags & HOSTAP_TX_FLAGS_WDS)) {
printk(KERN_DEBUG "%s: dropped frame to unauthorized "
@@ -442,13 +447,13 @@ int hostap_master_start_xmit(struct sk_buff *skb, struct net_device *dev)
dev->name, meta->ethertype);
hostap_dump_tx_80211(dev->name, skb);
- ret = 0; /* drop packet */
+ ret = NETDEV_TX_OK; /* drop packet */
iface->stats.tx_dropped++;
goto fail;
}
break;
case AP_TX_DROP:
- ret = 0; /* drop packet */
+ ret = NETDEV_TX_OK; /* drop packet */
iface->stats.tx_dropped++;
goto fail;
case AP_TX_RETRY:
@@ -456,7 +461,7 @@ int hostap_master_start_xmit(struct sk_buff *skb, struct net_device *dev)
case AP_TX_BUFFERED:
/* do not free skb here, it will be freed when the
* buffered frame is sent/timed out */
- ret = 0;
+ ret = NETDEV_TX_OK;
goto tx_exit;
}
@@ -469,10 +474,10 @@ int hostap_master_start_xmit(struct sk_buff *skb, struct net_device *dev)
/* remove special version from the frame header */
fc &= ~IEEE80211_FCTL_VERS;
- hdr->frame_ctl = cpu_to_le16(fc);
+ hdr->frame_control = cpu_to_le16(fc);
}
- if (WLAN_FC_GET_TYPE(fc) != IEEE80211_FTYPE_DATA) {
+ if (!ieee80211_is_data(hdr->frame_control)) {
no_encrypt = 1;
tx.crypt = NULL;
}
@@ -493,16 +498,16 @@ int hostap_master_start_xmit(struct sk_buff *skb, struct net_device *dev)
/* Add ISWEP flag both for firmware and host based encryption
*/
fc |= IEEE80211_FCTL_PROTECTED;
- hdr->frame_ctl = cpu_to_le16(fc);
+ hdr->frame_control = cpu_to_le16(fc);
} else if (local->drop_unencrypted &&
- WLAN_FC_GET_TYPE(fc) == IEEE80211_FTYPE_DATA &&
+ ieee80211_is_data(hdr->frame_control) &&
meta->ethertype != ETH_P_PAE) {
if (net_ratelimit()) {
printk(KERN_DEBUG "%s: dropped unencrypted TX data "
"frame (drop_unencrypted=1)\n", dev->name);
}
iface->stats.tx_dropped++;
- ret = 0;
+ ret = NETDEV_TX_OK;
goto fail;
}
@@ -511,7 +516,7 @@ int hostap_master_start_xmit(struct sk_buff *skb, struct net_device *dev)
if (skb == NULL) {
printk(KERN_DEBUG "%s: TX - encryption failed\n",
dev->name);
- ret = 0;
+ ret = NETDEV_TX_OK;
goto fail;
}
meta = (struct hostap_skb_tx_data *) skb->cb;
@@ -520,23 +525,23 @@ int hostap_master_start_xmit(struct sk_buff *skb, struct net_device *dev)
"expected 0x%08x) after hostap_tx_encrypt\n",
dev->name, meta->magic,
HOSTAP_SKB_TX_DATA_MAGIC);
- ret = 0;
+ ret = NETDEV_TX_OK;
iface->stats.tx_dropped++;
goto fail;
}
}
if (local->func->tx == NULL || local->func->tx(skb, dev)) {
- ret = 0;
+ ret = NETDEV_TX_OK;
iface->stats.tx_dropped++;
} else {
- ret = 0;
+ ret = NETDEV_TX_OK;
iface->stats.tx_packets++;
iface->stats.tx_bytes += skb->len;
}
fail:
- if (!ret && skb)
+ if (ret == NETDEV_TX_OK && skb)
dev_kfree_skb(skb);
tx_exit:
if (tx.sta_ptr)
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-06 15:56:52 +0000