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mac80211: clean up mesh code 

Various cleanups, reducing the #ifdef mess and other things.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Johannes Berg 2008-02-23 15:17:19 +01:00 committed by John W. Linville
parent f7a9214437
commit 902acc7896
15 changed files with 276 additions and 271 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
include/net/mac80211.h
View File

@ -465,6 +465,14 @@ struct ieee80211_vif {
u8 drv_priv[0] __attribute__((__aligned__(sizeof(void *))));
};
static inline bool ieee80211_vif_is_mesh(struct ieee80211_vif *vif)
{
#ifdef CONFIG_MAC80211_MESH
return vif->type == IEEE80211_IF_TYPE_MESH_POINT;
#endif
return false;
}
/**
* struct ieee80211_if_init_conf - initial configuration of an interface
*

32
net/mac80211/cfg.c
View File

@ -15,9 +15,7 @@
#include "ieee80211_i.h"
#include "cfg.h"
#include "ieee80211_rate.h"
#ifdef CONFIG_MAC80211_MESH
#include "mesh.h"
#endif
#define DEFAULT_RATES 0
@ -119,14 +117,10 @@ static int ieee80211_change_iface(struct wiphy *wiphy, int ifindex,
ieee80211_if_reinit(dev);
ieee80211_if_set_type(dev, itype);
#ifdef CONFIG_MAC80211_MESH
if (sdata->vif.type == IEEE80211_IF_TYPE_MESH_POINT &&
params->mesh_id_len) {
sdata->u.sta.mesh_id_len = params->mesh_id_len;
memcpy(sdata->u.sta.mesh_id, params->mesh_id,
params->mesh_id_len);
}
#endif
if (ieee80211_vif_is_mesh(&sdata->vif) && params->mesh_id_len)
ieee80211_if_sta_set_mesh_id(&sdata->u.sta,
params->mesh_id_len,
params->mesh_id);
if (sdata->vif.type != IEEE80211_IF_TYPE_MNTR || !flags)
return 0;
@ -317,9 +311,7 @@ static int ieee80211_config_default_key(struct wiphy *wiphy,
static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
{
#ifdef CONFIG_MAC80211_MESH
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev);
#endif
sinfo->filled = STATION_INFO_INACTIVE_TIME |
STATION_INFO_RX_BYTES |
@ -329,8 +321,8 @@ static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
sinfo->rx_bytes = sta->rx_bytes;
sinfo->tx_bytes = sta->tx_bytes;
if (ieee80211_vif_is_mesh(&sdata->vif)) {
#ifdef CONFIG_MAC80211_MESH
if (sdata->vif.type == IEEE80211_IF_TYPE_MESH_POINT) {
sinfo->filled |= STATION_INFO_LLID |
STATION_INFO_PLID |
STATION_INFO_PLINK_STATE;
@ -338,8 +330,8 @@ static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
sinfo->llid = le16_to_cpu(sta->llid);
sinfo->plid = le16_to_cpu(sta->plid);
sinfo->plink_state = sta->plink_state;
}
#endif
}
}
@ -580,9 +572,7 @@ static void sta_apply_parameters(struct ieee80211_local *local,
u32 rates;
int i, j;
struct ieee80211_supported_band *sband;
#ifdef CONFIG_MAC80211_MESH
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev);
#endif
if (params->station_flags & STATION_FLAG_CHANGED) {
sta->flags &= ~WLAN_STA_AUTHORIZED;
@ -621,9 +611,7 @@ static void sta_apply_parameters(struct ieee80211_local *local,
sta->supp_rates[local->oper_channel->band] = rates;
}
#ifdef CONFIG_MAC80211_MESH
if (sdata->vif.type == IEEE80211_IF_TYPE_MESH_POINT &&
params->plink_action)
if (ieee80211_vif_is_mesh(&sdata->vif) && params->plink_action) {
switch (params->plink_action) {
case PLINK_ACTION_OPEN:
mesh_plink_open(sta);
@ -632,7 +620,7 @@ static void sta_apply_parameters(struct ieee80211_local *local,
mesh_plink_block(sta);
break;
}
#endif
}
}
static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
@ -655,11 +643,9 @@ static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
} else
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
#ifdef CONFIG_MAC80211_MESH
if (sdata->vif.type == IEEE80211_IF_TYPE_MESH_POINT)
if (ieee80211_vif_is_mesh(&sdata->vif))
sta = mesh_plink_add(mac, DEFAULT_RATES, dev);
else
#endif
sta = sta_info_add(local, dev, mac, GFP_KERNEL);
if (IS_ERR(sta))

9
net/mac80211/ieee80211.c
View File

@ -26,9 +26,7 @@
#include "ieee80211_i.h"
#include "ieee80211_rate.h"
#ifdef CONFIG_MAC80211_MESH
#include "mesh.h"
#endif
#include "wep.h"
#include "wme.h"
#include "aes_ccm.h"
@ -938,11 +936,9 @@ static int __ieee80211_if_config(struct net_device *dev,
conf.bssid = sdata->u.sta.bssid;
conf.ssid = sdata->u.sta.ssid;
conf.ssid_len = sdata->u.sta.ssid_len;
#ifdef CONFIG_MAC80211_MESH
} else if (sdata->vif.type == IEEE80211_IF_TYPE_MESH_POINT) {
} else if (ieee80211_vif_is_mesh(&sdata->vif)) {
conf.beacon = beacon;
ieee80211_start_mesh(dev);
#endif
} else if (sdata->vif.type == IEEE80211_IF_TYPE_AP) {
conf.ssid = sdata->u.ap.ssid;
conf.ssid_len = sdata->u.ap.ssid_len;
@ -1824,10 +1820,9 @@ static void __exit ieee80211_exit(void)
rc80211_simple_exit();
rc80211_pid_exit();
#ifdef CONFIG_MAC80211_MESH
if (mesh_allocated)
ieee80211s_stop();
#endif
ieee80211_wme_unregister();
ieee80211_debugfs_netdev_exit();
}

56
net/mac80211/ieee80211_i.h
View File

@ -93,9 +93,8 @@ struct ieee80211_sta_bss {
#ifdef CONFIG_MAC80211_MESH
u8 *mesh_id;
size_t mesh_id_len;
#endif
/* mesh_cfg left out the ifdef to reduce clutter on bss handling */
u8 *mesh_cfg;
#endif
#define IEEE80211_MAX_SUPP_RATES 32
u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
size_t supp_rates_len;
@ -113,6 +112,30 @@ struct ieee80211_sta_bss {
u8 erp_value;
};
static inline u8 *bss_mesh_cfg(struct ieee80211_sta_bss *bss)
{
#ifdef CONFIG_MAC80211_MESH
return bss->mesh_cfg;
#endif
return NULL;
}
static inline u8 *bss_mesh_id(struct ieee80211_sta_bss *bss)
{
#ifdef CONFIG_MAC80211_MESH
return bss->mesh_id;
#endif
return NULL;
}
static inline u8 bss_mesh_id_len(struct ieee80211_sta_bss *bss)
{
#ifdef CONFIG_MAC80211_MESH
return bss->mesh_id_len;
#endif
return 0;
}
typedef unsigned __bitwise__ ieee80211_tx_result;
#define TX_CONTINUE ((__force ieee80211_tx_result) 0u)
@ -233,7 +256,6 @@ struct ieee80211_if_vlan {
struct list_head list;
};
#ifdef CONFIG_MAC80211_MESH
struct mesh_stats {
__u32 fwded_frames; /* Mesh forwarded frames */
__u32 dropped_frames_ttl; /* Not transmitted since mesh_ttl == 0*/
@ -249,7 +271,6 @@ struct mesh_preq_queue {
u8 flags;
};
struct mesh_config {
/* Timeouts in ms */
/* Mesh plink management parameters */
@ -268,7 +289,7 @@ struct mesh_config {
u32 path_refresh_time;
u16 min_discovery_timeout;
};
#endif
/* flags used in struct ieee80211_if_sta.flags */
#define IEEE80211_STA_SSID_SET BIT(0)
@ -361,6 +382,22 @@ struct ieee80211_if_sta {
int num_beacons; /* number of TXed beacon frames by this STA */
};
static inline void ieee80211_if_sta_set_mesh_id(struct ieee80211_if_sta *ifsta,
u8 mesh_id_len, u8 *mesh_id)
{
#ifdef CONFIG_MAC80211_MESH
ifsta->mesh_id_len = mesh_id_len;
memcpy(ifsta->mesh_id, mesh_id, mesh_id_len);
#endif
}
#ifdef CONFIG_MAC80211_MESH
#define IEEE80211_IFSTA_MESH_CTR_INC(sta, name) \
do { (sta)->mshstats.name++; } while (0)
#else
#define IEEE80211_IFSTA_MESH_CTR_INC(sta, name) \
do { } while (0)
#endif
/* flags used in struct ieee80211_sub_if_data.flags */
#define IEEE80211_SDATA_ALLMULTI BIT(0)
@ -472,7 +509,7 @@ struct ieee80211_sub_if_data {
struct dentry *dropped_frames_ttl;
struct dentry *dropped_frames_no_route;
struct dentry *estab_plinks;
struct timer_list mesh_path_timer;
struct timer_list mesh_path_timer;
} mesh_stats;
struct dentry *mesh_config_dir;
@ -884,12 +921,17 @@ void sta_addba_resp_timer_expired(unsigned long data);
u64 ieee80211_sta_get_rates(struct ieee80211_local *local,
struct ieee802_11_elems *elems,
enum ieee80211_band band);
void ieee80211_start_mesh(struct net_device *dev);
void ieee80211_sta_tx(struct net_device *dev, struct sk_buff *skb,
int encrypt);
void ieee802_11_parse_elems(u8 *start, size_t len,
struct ieee802_11_elems *elems);
#ifdef CONFIG_MAC80211_MESH
void ieee80211_start_mesh(struct net_device *dev);
#else
static inline void ieee80211_start_mesh(struct net_device *dev)
{}
#endif
/* ieee80211_iface.c */
int ieee80211_if_add(struct net_device *dev, const char *name,

66
net/mac80211/ieee80211_iface.c
View File

@ -15,9 +15,7 @@
#include "ieee80211_i.h"
#include "sta_info.h"
#include "debugfs_netdev.h"
#ifdef CONFIG_MAC80211_MESH
#include "mesh.h"
#endif
void ieee80211_if_sdata_init(struct ieee80211_sub_if_data *sdata)
{
@ -82,14 +80,11 @@ int ieee80211_if_add(struct net_device *dev, const char *name,
ieee80211_debugfs_add_netdev(sdata);
ieee80211_if_set_type(ndev, type);
#ifdef CONFIG_MAC80211_MESH
if (sdata->vif.type == IEEE80211_IF_TYPE_MESH_POINT &&
params && params->mesh_id_len) {
sdata->u.sta.mesh_id_len = params->mesh_id_len;
memcpy(sdata->u.sta.mesh_id, params->mesh_id,
params->mesh_id_len);
}
#endif
if (ieee80211_vif_is_mesh(&sdata->vif) &&
params && params->mesh_id_len)
ieee80211_if_sta_set_mesh_id(&sdata->u.sta,
params->mesh_id_len,
params->mesh_id);
/* we're under RTNL so all this is fine */
if (unlikely(local->reg_state == IEEE80211_DEV_UNREGISTERED)) {
@ -170,47 +165,8 @@ void ieee80211_if_set_type(struct net_device *dev, int type)
msdata = IEEE80211_DEV_TO_SUB_IF(sdata->local->mdev);
sdata->bss = &msdata->u.ap;
#ifdef CONFIG_MAC80211_MESH
if (type == IEEE80211_IF_TYPE_MESH_POINT) {
ifsta->mshcfg.dot11MeshRetryTimeout = MESH_RET_T;
ifsta->mshcfg.dot11MeshConfirmTimeout = MESH_CONF_T;
ifsta->mshcfg.dot11MeshHoldingTimeout = MESH_HOLD_T;
ifsta->mshcfg.dot11MeshMaxRetries = MESH_MAX_RETR;
ifsta->mshcfg.dot11MeshTTL = MESH_TTL;
ifsta->mshcfg.auto_open_plinks = true;
ifsta->mshcfg.dot11MeshMaxPeerLinks =
MESH_MAX_ESTAB_PLINKS;
ifsta->mshcfg.dot11MeshHWMPactivePathTimeout =
MESH_PATH_TIMEOUT;
ifsta->mshcfg.dot11MeshHWMPpreqMinInterval =
MESH_PREQ_MIN_INT;
ifsta->mshcfg.dot11MeshHWMPnetDiameterTraversalTime =
MESH_DIAM_TRAVERSAL_TIME;
ifsta->mshcfg.dot11MeshHWMPmaxPREQretries =
MESH_MAX_PREQ_RETRIES;
ifsta->mshcfg.path_refresh_time =
MESH_PATH_REFRESH_TIME;
ifsta->mshcfg.min_discovery_timeout =
MESH_MIN_DISCOVERY_TIMEOUT;
ifsta->accepting_plinks = true;
ifsta->preq_id = 0;
ifsta->dsn = 0;
atomic_set(&ifsta->mpaths, 0);
mesh_rmc_init(dev);
ifsta->last_preq = jiffies;
/* Allocate all mesh structures when creating the first
* mesh interface.
*/
if (!mesh_allocated)
ieee80211s_init();
mesh_ids_set_default(ifsta);
setup_timer(&ifsta->mesh_path_timer,
ieee80211_mesh_path_timer,
(unsigned long) sdata);
INIT_LIST_HEAD(&ifsta->preq_queue.list);
spin_lock_init(&ifsta->mesh_preq_queue_lock);
}
#endif
if (ieee80211_vif_is_mesh(&sdata->vif))
ieee80211_mesh_init_sdata(sdata);
break;
}
case IEEE80211_IF_TYPE_MNTR:
@ -240,6 +196,10 @@ void ieee80211_if_reinit(struct net_device *dev)
ieee80211_if_sdata_deinit(sdata);
/* Need to handle mesh specially to allow eliding the function call */
if (ieee80211_vif_is_mesh(&sdata->vif))
mesh_rmc_free(dev);
switch (sdata->vif.type) {
case IEEE80211_IF_TYPE_INVALID:
/* cannot happen */
@ -292,10 +252,6 @@ void ieee80211_if_reinit(struct net_device *dev)
}
break;
case IEEE80211_IF_TYPE_MESH_POINT:
#ifdef CONFIG_MAC80211_MESH
mesh_rmc_free(dev);
#endif
/* fall through */
case IEEE80211_IF_TYPE_STA:
case IEEE80211_IF_TYPE_IBSS:
kfree(sdata->u.sta.extra_ie);

72
net/mac80211/ieee80211_sta.c
View File

@ -31,9 +31,7 @@
#include "ieee80211_i.h"
#include "ieee80211_rate.h"
#include "ieee80211_led.h"
#ifdef CONFIG_MAC80211_MESH
#include "mesh.h"
#endif
#define IEEE80211_AUTH_TIMEOUT (HZ / 5)
#define IEEE80211_AUTH_MAX_TRIES 3
@ -1897,12 +1895,13 @@ static void __ieee80211_rx_bss_hash_add(struct net_device *dev,
{
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
u8 hash_idx;
#ifdef CONFIG_MAC80211_MESH
if (bss->mesh_cfg)
hash_idx = mesh_id_hash(bss->mesh_id, bss->mesh_id_len);
if (bss_mesh_cfg(bss))
hash_idx = mesh_id_hash(bss_mesh_id(bss),
bss_mesh_id_len(bss));
else
#endif
hash_idx = STA_HASH(bss->bssid);
bss->hnext = local->sta_bss_hash[hash_idx];
local->sta_bss_hash[hash_idx] = bss;
}
@ -1967,7 +1966,8 @@ ieee80211_rx_bss_get(struct net_device *dev, u8 *bssid, int freq,
spin_lock_bh(&local->sta_bss_lock);
bss = local->sta_bss_hash[STA_HASH(bssid)];
while (bss) {
if (!bss->mesh_cfg && !memcmp(bss->bssid, bssid, ETH_ALEN) &&
if (!bss_mesh_cfg(bss) &&
!memcmp(bss->bssid, bssid, ETH_ALEN) &&
bss->freq == freq &&
bss->ssid_len == ssid_len &&
(ssid_len == 0 || !memcmp(bss->ssid, ssid, ssid_len))) {
@ -1991,8 +1991,8 @@ ieee80211_rx_mesh_bss_get(struct net_device *dev, u8 *mesh_id, int mesh_id_len,
spin_lock_bh(&local->sta_bss_lock);
bss = local->sta_bss_hash[mesh_id_hash(mesh_id, mesh_id_len)];
while (bss) {
if (bss->mesh_cfg &&
!memcmp(bss->mesh_cfg, mesh_cfg, MESH_CFG_CMP_LEN) &&
if (bss_mesh_cfg(bss) &&
!memcmp(bss_mesh_cfg(bss), mesh_cfg, MESH_CFG_CMP_LEN) &&
bss->freq == freq &&
mesh_id_len == bss->mesh_id_len &&
(mesh_id_len == 0 || !memcmp(bss->mesh_id, mesh_id,
@ -2053,10 +2053,8 @@ static void ieee80211_rx_bss_free(struct ieee80211_sta_bss *bss)
kfree(bss->rsn_ie);
kfree(bss->wmm_ie);
kfree(bss->ht_ie);
#ifdef CONFIG_MAC80211_MESH
kfree(bss->mesh_id);
kfree(bss->mesh_cfg);
#endif
kfree(bss_mesh_id(bss));
kfree(bss_mesh_cfg(bss));
kfree(bss);
}
@ -2322,16 +2320,14 @@ static void ieee80211_rx_bss_info(struct net_device *dev,
beacon_timestamp = le64_to_cpu(mgmt->u.beacon.timestamp);
ieee802_11_parse_elems(mgmt->u.beacon.variable, len - baselen, &elems);
#ifdef CONFIG_MAC80211_MESH
if (sdata->vif.type == IEEE80211_IF_TYPE_MESH_POINT && elems.mesh_id
&& elems.mesh_config)
if (mesh_matches_local(&elems, dev)) {
u64 rates = ieee80211_sta_get_rates(local, &elems,
rx_status->band);
mesh_neighbour_update(mgmt->sa, rates, dev,
mesh_peer_accepts_plinks(&elems, dev));
}
#endif
if (ieee80211_vif_is_mesh(&sdata->vif) && elems.mesh_id &&
elems.mesh_config && mesh_matches_local(&elems, dev)) {
u64 rates = ieee80211_sta_get_rates(local, &elems,
rx_status->band);
mesh_neighbour_update(mgmt->sa, rates, dev,
mesh_peer_accepts_plinks(&elems, dev));
}
if (sdata->vif.type == IEEE80211_IF_TYPE_IBSS && elems.supp_rates &&
memcmp(mgmt->bssid, sdata->u.sta.bssid, ETH_ALEN) == 0 &&
@ -2712,9 +2708,7 @@ static void ieee80211_rx_mgmt_action(struct net_device *dev,
size_t len,
struct ieee80211_rx_status *rx_status)
{
#ifdef CONFIG_MAC80211_MESH
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
#endif
if (len < IEEE80211_MIN_ACTION_SIZE)
return;
@ -2747,17 +2741,14 @@ static void ieee80211_rx_mgmt_action(struct net_device *dev,
break;
}
break;
#ifdef CONFIG_MAC80211_MESH
case PLINK_CATEGORY:
if (sdata->vif.type == IEEE80211_IF_TYPE_MESH_POINT)
if (ieee80211_vif_is_mesh(&sdata->vif))
mesh_rx_plink_frame(dev, mgmt, len, rx_status);
break;
case MESH_PATH_SEL_CATEGORY:
if (sdata->vif.type == IEEE80211_IF_TYPE_MESH_POINT)
if (ieee80211_vif_is_mesh(&sdata->vif))
mesh_rx_path_sel_frame(dev, mgmt, len);
break;
#endif
default:
if (net_ratelimit())
printk(KERN_DEBUG "%s: Rx unknown action frame - "
@ -3027,8 +3018,9 @@ void ieee80211_sta_work(struct work_struct *work)
ieee80211_sta_rx_queued_mgmt(dev, skb);
#ifdef CONFIG_MAC80211_MESH
if (ifsta->preq_queue_len && time_after(jiffies, ifsta->last_preq +
msecs_to_jiffies(ifsta->mshcfg.dot11MeshHWMPpreqMinInterval)))
if (ifsta->preq_queue_len &&
time_after(jiffies,
ifsta->last_preq + msecs_to_jiffies(ifsta->mshcfg.dot11MeshHWMPpreqMinInterval)))
mesh_path_start_discovery(dev);
#endif
@ -3810,13 +3802,11 @@ ieee80211_sta_scan_result(struct net_device *dev,
memset(&iwe, 0, sizeof(iwe));
iwe.cmd = SIOCGIWESSID;
if (bss->mesh_cfg) {
#ifdef CONFIG_MAC80211_MESH
iwe.u.data.length = bss->mesh_id_len;
if (bss_mesh_cfg(bss)) {
iwe.u.data.length = bss_mesh_id_len(bss);
iwe.u.data.flags = 1;
current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe,
bss->mesh_id);
#endif
bss_mesh_id(bss));
} else {
iwe.u.data.length = bss->ssid_len;
iwe.u.data.flags = 1;
@ -3825,10 +3815,10 @@ ieee80211_sta_scan_result(struct net_device *dev,
}
if (bss->capability & (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS
|| bss->mesh_cfg)) {
|| bss_mesh_cfg(bss))) {
memset(&iwe, 0, sizeof(iwe));
iwe.cmd = SIOCGIWMODE;
if (bss->mesh_cfg)
if (bss_mesh_cfg(bss))
iwe.u.mode = IW_MODE_MESH;
else if (bss->capability & WLAN_CAPABILITY_ESS)
iwe.u.mode = IW_MODE_MASTER;
@ -3919,9 +3909,9 @@ ieee80211_sta_scan_result(struct net_device *dev,
}
}
if (bss->mesh_cfg) {
if (bss_mesh_cfg(bss)) {
char *buf;
u8 *cfg = bss->mesh_cfg;
u8 *cfg = bss_mesh_cfg(bss);
buf = kmalloc(200, GFP_ATOMIC);
if (buf) {
memset(&iwe, 0, sizeof(iwe));

67
net/mac80211/mesh.c
View File

@ -381,3 +381,70 @@ endgrow:
else
return newtbl;
}
/**
* ieee80211_new_mesh_header - create a new mesh header
* @meshhdr: uninitialized mesh header
* @sdata: mesh interface to be used
*
* Return the header length.
*/
int ieee80211_new_mesh_header(struct ieee80211s_hdr *meshhdr,
struct ieee80211_sub_if_data *sdata)
{
meshhdr->flags = 0;
meshhdr->ttl = sdata->u.sta.mshcfg.dot11MeshTTL;
meshhdr->seqnum[0] = sdata->u.sta.mesh_seqnum[0]++;
meshhdr->seqnum[1] = sdata->u.sta.mesh_seqnum[1];
meshhdr->seqnum[2] = sdata->u.sta.mesh_seqnum[2];
if (sdata->u.sta.mesh_seqnum[0] == 0) {
sdata->u.sta.mesh_seqnum[1]++;
if (sdata->u.sta.mesh_seqnum[1] == 0)
sdata->u.sta.mesh_seqnum[2]++;
}
return 5;
}
void ieee80211_mesh_init_sdata(struct ieee80211_sub_if_data *sdata)
{
struct ieee80211_if_sta *ifsta = &sdata->u.sta;
ifsta->mshcfg.dot11MeshRetryTimeout = MESH_RET_T;
ifsta->mshcfg.dot11MeshConfirmTimeout = MESH_CONF_T;
ifsta->mshcfg.dot11MeshHoldingTimeout = MESH_HOLD_T;
ifsta->mshcfg.dot11MeshMaxRetries = MESH_MAX_RETR;
ifsta->mshcfg.dot11MeshTTL = MESH_TTL;
ifsta->mshcfg.auto_open_plinks = true;
ifsta->mshcfg.dot11MeshMaxPeerLinks =
MESH_MAX_ESTAB_PLINKS;
ifsta->mshcfg.dot11MeshHWMPactivePathTimeout =
MESH_PATH_TIMEOUT;
ifsta->mshcfg.dot11MeshHWMPpreqMinInterval =
MESH_PREQ_MIN_INT;
ifsta->mshcfg.dot11MeshHWMPnetDiameterTraversalTime =
MESH_DIAM_TRAVERSAL_TIME;
ifsta->mshcfg.dot11MeshHWMPmaxPREQretries =
MESH_MAX_PREQ_RETRIES;
ifsta->mshcfg.path_refresh_time =
MESH_PATH_REFRESH_TIME;
ifsta->mshcfg.min_discovery_timeout =
MESH_MIN_DISCOVERY_TIMEOUT;
ifsta->accepting_plinks = true;
ifsta->preq_id = 0;
ifsta->dsn = 0;
atomic_set(&ifsta->mpaths, 0);
mesh_rmc_init(sdata->dev);
ifsta->last_preq = jiffies;
/* Allocate all mesh structures when creating the first mesh interface. */
if (!mesh_allocated)
ieee80211s_init();
mesh_ids_set_default(ifsta);
setup_timer(&ifsta->mesh_path_timer,
ieee80211_mesh_path_timer,
(unsigned long) sdata);
INIT_LIST_HEAD(&ifsta->preq_queue.list);
spin_lock_init(&ifsta->mesh_preq_queue_lock);
}

13
net/mac80211/mesh.h
View File

@ -11,10 +11,10 @@
#ifndef IEEE80211S_H
#define IEEE80211S_H
#include "ieee80211_i.h"
#include <linux/types.h>
#include <linux/jhash.h>
#include "ieee80211_i.h"
extern int mesh_allocated;
/* Data structures */
@ -211,6 +211,8 @@ void mesh_rmc_free(struct net_device *dev);
int mesh_rmc_init(struct net_device *dev);
void ieee80211s_init(void);
void ieee80211s_stop(void);
void ieee80211_mesh_init_sdata(struct ieee80211_sub_if_data *sdata);
/* Mesh paths */
int mesh_nexthop_lookup(u8 *next_hop, struct sk_buff *skb,
struct net_device *dev);
@ -257,6 +259,9 @@ void mesh_path_timer(unsigned long data);
void mesh_path_flush_by_nexthop(struct sta_info *sta);
void mesh_path_discard_frame(struct sk_buff *skb, struct net_device *dev);
#ifdef CONFIG_MAC80211_MESH
extern int mesh_allocated;
static inline int mesh_plink_free_count(struct ieee80211_sub_if_data *sdata)
{
return sdata->u.sta.mshcfg.dot11MeshMaxPeerLinks -
@ -278,6 +283,10 @@ static inline void mesh_path_activate(struct mesh_path *mpath)
for (i = 0; i <= x->hash_mask; i++) \
hlist_for_each_entry_rcu(node, p, &x->hash_buckets[i], list)
#else
#define mesh_allocated 0
#endif
#define MESH_PREQ(skb) (skb->cb + 30)
#endif /* IEEE80211S_H */

28
net/mac80211/mesh_plink.c
View File

@ -6,11 +6,11 @@
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/kernel.h>
#include <linux/random.h>
#include "ieee80211_i.h"
#include "ieee80211_rate.h"
#include "mesh.h"
#include <linux/random.h>
#ifdef CONFIG_MAC80211_VERBOSE_MPL_DEBUG
#define mpl_dbg(fmt, args...) printk(KERN_DEBUG fmt, ##args)
@ -131,7 +131,7 @@ struct sta_info *mesh_plink_add(u8 *hw_addr, u64 rates, struct net_device *dev)
}
/**
* mesh_plink_deactivate - deactivate mesh peer link
* __mesh_plink_deactivate - deactivate mesh peer link
*
* @sta: mesh peer link to deactivate
*
@ -139,7 +139,7 @@ struct sta_info *mesh_plink_add(u8 *hw_addr, u64 rates, struct net_device *dev)
*
* Locking: the caller must hold sta->plink_lock
*/
void mesh_plink_deactivate(struct sta_info *sta)
static void __mesh_plink_deactivate(struct sta_info *sta)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev);
if (sta->plink_state == ESTAB)
@ -148,6 +148,20 @@ void mesh_plink_deactivate(struct sta_info *sta)
mesh_path_flush_by_nexthop(sta);
}
/**
* __mesh_plink_deactivate - deactivate mesh peer link
*
* @sta: mesh peer link to deactivate
*
* All mesh paths with this peer as next hop will be flushed
*/
void mesh_plink_deactivate(struct sta_info *sta)
{
spin_lock_bh(&sta->plink_lock);
__mesh_plink_deactivate(sta);
spin_unlock_bh(&sta->plink_lock);
}
static int mesh_plink_frame_tx(struct net_device *dev,
enum plink_frame_type action, u8 *da, __le16 llid, __le16 plid,
__le16 reason) {
@ -365,7 +379,7 @@ void mesh_plink_block(struct sta_info *sta)
#endif
spin_lock_bh(&sta->plink_lock);
mesh_plink_deactivate(sta);
__mesh_plink_deactivate(sta);
sta->plink_state = BLOCKED;
spin_unlock_bh(&sta->plink_lock);
}
@ -390,7 +404,7 @@ int mesh_plink_close(struct sta_info *sta)
sta_info_put(sta);
return 0;
} else if (sta->plink_state == ESTAB) {
mesh_plink_deactivate(sta);
__mesh_plink_deactivate(sta);
/* The timer should not be running */
if (!mod_plink_timer(sta, dot11MeshHoldingTimeout(sdata)))
__sta_info_get(sta);
@ -699,7 +713,7 @@ void mesh_rx_plink_frame(struct net_device *dev, struct ieee80211_mgmt *mgmt,
case CLS_ACPT:
reason = cpu_to_le16(MESH_CLOSE_RCVD);
sta->reason = reason;
mesh_plink_deactivate(sta);
__mesh_plink_deactivate(sta);
sta->plink_state = HOLDING;
llid = sta->llid;
if (!mod_plink_timer(sta,

3
net/mac80211/rc80211_pid_algo.c
View File

@ -15,10 +15,7 @@
#include <linux/debugfs.h>
#include <net/mac80211.h>
#include "ieee80211_rate.h"
#ifdef CONFIG_MAC80211_MESH
#include "mesh.h"
#endif
#include "rc80211_pid.h"

28
net/mac80211/rx.c
View File

@ -20,9 +20,7 @@
#include "ieee80211_i.h"
#include "ieee80211_led.h"
#ifdef CONFIG_MAC80211_MESH
#include "mesh.h"
#endif
#include "wep.h"
#include "wpa.h"
#include "tkip.h"
@ -439,6 +437,13 @@ ieee80211_rx_mesh_check(struct ieee80211_txrx_data *rx)
else
return RX_CONTINUE;
}
#undef msh_h_get
#else
static inline ieee80211_rx_result
ieee80211_rx_mesh_check(struct ieee80211_txrx_data *rx)
{
return RX_CONTINUE;
}
#endif
@ -477,10 +482,8 @@ ieee80211_rx_h_check(struct ieee80211_txrx_data *rx)
* responsible for filtering on both auth and assoc states.
*/
#ifdef CONFIG_MAC80211_MESH
if (rx->sdata->vif.type == IEEE80211_IF_TYPE_MESH_POINT)
if (ieee80211_vif_is_mesh(&rx->sdata->vif))
return ieee80211_rx_mesh_check(rx);
#endif
if (unlikely(((rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA ||
((rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_CTL &&
@ -1111,8 +1114,7 @@ ieee80211_data_to_8023(struct ieee80211_txrx_data *rx)
hdrlen = ieee80211_get_hdrlen(fc);
#ifdef CONFIG_MAC80211_MESH
if (sdata->vif.type == IEEE80211_IF_TYPE_MESH_POINT) {
if (ieee80211_vif_is_mesh(&sdata->vif)) {
int meshhdrlen = ieee80211_get_mesh_hdrlen(
(struct ieee80211s_hdr *) (skb->data + hdrlen));
/* Copy on cb:
@ -1126,7 +1128,6 @@ ieee80211_data_to_8023(struct ieee80211_txrx_data *rx)
memcpy(MESH_PREQ(skb), hdr->addr2, ETH_ALEN);
hdrlen += meshhdrlen;
}
#endif
/* convert IEEE 802.11 header + possible LLC headers into Ethernet
* header
@ -1306,9 +1307,8 @@ ieee80211_deliver_skb(struct ieee80211_txrx_data *rx)
}
}
#ifdef CONFIG_MAC80211_MESH
/* Mesh forwarding */
if (sdata->vif.type == IEEE80211_IF_TYPE_MESH_POINT) {
if (ieee80211_vif_is_mesh(&sdata->vif)) {
u8 *mesh_ttl = &((struct ieee80211s_hdr *)skb->cb)->ttl;
(*mesh_ttl)--;
@ -1321,12 +1321,13 @@ ieee80211_deliver_skb(struct ieee80211_txrx_data *rx)
else
xmit_skb->pkt_type = PACKET_OTHERHOST;
} else
sdata->u.sta.mshstats.dropped_frames_ttl++;
IEEE80211_IFSTA_MESH_CTR_INC(&sdata->u.sta,
dropped_frames_ttl);
} else if (skb->pkt_type != PACKET_OTHERHOST &&
compare_ether_addr(dev->dev_addr, skb->data) != 0) {
if (*mesh_ttl == 0) {
sdata->u.sta.mshstats.dropped_frames_ttl++;
IEEE80211_IFSTA_MESH_CTR_INC(&sdata->u.sta,
dropped_frames_ttl);
dev_kfree_skb(skb);
skb = NULL;
} else {
@ -1337,7 +1338,6 @@ ieee80211_deliver_skb(struct ieee80211_txrx_data *rx)
}
}
}
#endif
if (skb) {
/* deliver to local stack */

13
net/mac80211/sta_info.c
View File

@ -21,9 +21,7 @@
#include "ieee80211_rate.h"
#include "sta_info.h"
#include "debugfs_sta.h"
#ifdef CONFIG_MAC80211_MESH
#include "mesh.h"
#endif
/* Caller must hold local->sta_lock */
static void sta_info_hash_add(struct ieee80211_local *local,
@ -309,10 +307,8 @@ void sta_info_remove(struct sta_info *sta)
}
local->num_sta--;
#ifdef CONFIG_MAC80211_MESH
if (sdata->vif.type == IEEE80211_IF_TYPE_MESH_POINT)
if (ieee80211_vif_is_mesh(&sdata->vif))
mesh_accept_plinks_update(sdata->dev);
#endif
}
void sta_info_free(struct sta_info *sta)
@ -329,13 +325,8 @@ void sta_info_free(struct sta_info *sta)
sta_info_remove(sta);
write_unlock_bh(&local->sta_lock);
#ifdef CONFIG_MAC80211_MESH
if (sdata->vif.type == IEEE80211_IF_TYPE_MESH_POINT) {
spin_lock_bh(&sta->plink_lock);
if (ieee80211_vif_is_mesh(&sdata->vif))
mesh_plink_deactivate(sta);
spin_unlock_bh(&sta->plink_lock);
}
#endif
while ((skb = skb_dequeue(&sta->ps_tx_buf)) != NULL) {
local->total_ps_buffered--;

2
net/mac80211/sta_info.h
View File

@ -107,7 +107,6 @@ struct tid_ampdu_rx {
struct timer_list session_timer;
};
#ifdef CONFIG_MAC80211_MESH
enum plink_state {
LISTEN,
OPN_SNT,
@ -117,7 +116,6 @@ enum plink_state {
HOLDING,
BLOCKED
};
#endif
/**
* struct sta_ampdu_mlme - STA aggregation information.

118
net/mac80211/tx.c
View File

@ -26,9 +26,7 @@
#include "ieee80211_i.h"
#include "ieee80211_led.h"
#ifdef CONFIG_MAC80211_MESH
#include "mesh.h"
#endif
#include "wep.h"
#include "wpa.h"
#include "wme.h"
@ -1460,7 +1458,7 @@ int ieee80211_subif_start_xmit(struct sk_buff *skb,
goto fail;
}
meshhdrlen = ieee80211_new_mesh_header(&mesh_hdr,
sdata);
sdata);
}
hdrlen = 30;
break;
@ -1778,40 +1776,6 @@ static void ieee80211_beacon_add_tim(struct ieee80211_local *local,
read_unlock_bh(&local->sta_lock);
}
#ifdef CONFIG_MAC80211_MESH
static struct sk_buff *ieee80211_mesh_beacon_get(struct net_device *dev)
{
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
struct sk_buff *skb = dev_alloc_skb(local->hw.extra_tx_headroom + 400);
struct ieee80211_mgmt *mgmt;
u8 *pos;
if (!skb)
return NULL;
skb_reserve(skb, local->hw.extra_tx_headroom);
mgmt = (struct ieee80211_mgmt *)
skb_put(skb, 24 + sizeof(mgmt->u.beacon));
memset(mgmt, 0, 24 + sizeof(mgmt->u.beacon));
mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT,
IEEE80211_STYPE_BEACON);
memset(mgmt->da, 0xff, ETH_ALEN);
memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN);
/* BSSID is left zeroed, wildcard value */
mgmt->u.beacon.beacon_int =
cpu_to_le16(local->hw.conf.beacon_int);
mgmt->u.beacon.capab_info = 0x0; /* 0x0 for MPs */
pos = skb_put(skb, 2);
*pos++ = WLAN_EID_SSID;
*pos++ = 0x0;
mesh_mgmt_ies_add(skb, dev);
return skb;
}
#endif
struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_tx_control *control)
@ -1824,8 +1788,10 @@ struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw,
struct rate_selection rsel;
struct beacon_data *beacon;
struct ieee80211_supported_band *sband;
struct ieee80211_mgmt *mgmt;
int *num_beacons;
int err = 0;
bool err = true;
u8 *pos;
sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
@ -1834,47 +1800,65 @@ struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw,
sdata = vif_to_sdata(vif);
bdev = sdata->dev;
switch (sdata->vif.type) {
case IEEE80211_IF_TYPE_AP:
if (sdata->vif.type == IEEE80211_IF_TYPE_AP) {
ap = &sdata->u.ap;
beacon = rcu_dereference(ap->beacon);
if (!ap || !beacon) {
err = -1;
break;
}
if (ap && beacon) {
/*
* headroom, head length,
* tail length and maximum TIM length
*/
skb = dev_alloc_skb(local->tx_headroom +
beacon->head_len +
beacon->tail_len + 256);
if (!skb)
goto out;
skb_reserve(skb, local->tx_headroom);
memcpy(skb_put(skb, beacon->head_len), beacon->head,
beacon->head_len);
ieee80211_include_sequence(sdata,
(struct ieee80211_hdr *)skb->data);
ieee80211_beacon_add_tim(local, ap, skb, beacon);
if (beacon->tail)
memcpy(skb_put(skb, beacon->tail_len),
beacon->tail, beacon->tail_len);
num_beacons = &ap->num_beacons;
err = false;
}
} else if (ieee80211_vif_is_mesh(&sdata->vif)) {
/* headroom, head length, tail length and maximum TIM length */
skb = dev_alloc_skb(local->tx_headroom + beacon->head_len +
beacon->tail_len + 256);
skb = dev_alloc_skb(local->tx_headroom + 400);
if (!skb)
goto out;
skb_reserve(skb, local->tx_headroom);
memcpy(skb_put(skb, beacon->head_len), beacon->head,
beacon->head_len);
skb_reserve(skb, local->hw.extra_tx_headroom);
mgmt = (struct ieee80211_mgmt *)
skb_put(skb, 24 + sizeof(mgmt->u.beacon));
memset(mgmt, 0, 24 + sizeof(mgmt->u.beacon));
mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT,
IEEE80211_STYPE_BEACON);
memset(mgmt->da, 0xff, ETH_ALEN);
memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN);
/* BSSID is left zeroed, wildcard value */
mgmt->u.beacon.beacon_int =
cpu_to_le16(local->hw.conf.beacon_int);
mgmt->u.beacon.capab_info = 0x0; /* 0x0 for MPs */
ieee80211_include_sequence(sdata,
(struct ieee80211_hdr *)skb->data);
pos = skb_put(skb, 2);
*pos++ = WLAN_EID_SSID;
*pos++ = 0x0;
ieee80211_beacon_add_tim(local, ap, skb, beacon);
mesh_mgmt_ies_add(skb, sdata->dev);
if (beacon->tail)
memcpy(skb_put(skb, beacon->tail_len), beacon->tail,
beacon->tail_len);
num_beacons = &ap->num_beacons;
break;
#ifdef CONFIG_MAC80211_MESH
case IEEE80211_IF_TYPE_MESH_POINT:
skb = ieee80211_mesh_beacon_get(bdev);
num_beacons = &sdata->u.sta.num_beacons;
break;
#endif
default:
err = -1;
break;
err = false;
}
if (err) {

32
net/mac80211/util.c
View File

@ -26,9 +26,7 @@
#include "ieee80211_i.h"
#include "ieee80211_rate.h"
#ifdef CONFIG_MAC80211_MESH
#include "mesh.h"
#endif
#include "wme.h"
/* privid for wiphys to determine whether they belong to us or not */
@ -149,7 +147,6 @@ int ieee80211_get_hdrlen_from_skb(const struct sk_buff *skb)
}
EXPORT_SYMBOL(ieee80211_get_hdrlen_from_skb);
#ifdef CONFIG_MAC80211_MESH
int ieee80211_get_mesh_hdrlen(struct ieee80211s_hdr *meshhdr)
{
int ae = meshhdr->flags & IEEE80211S_FLAGS_AE;
@ -167,7 +164,6 @@ int ieee80211_get_mesh_hdrlen(struct ieee80211s_hdr *meshhdr)
return 5;
}
}
#endif
void ieee80211_tx_set_iswep(struct ieee80211_txrx_data *tx)
{
@ -418,31 +414,3 @@ void ieee80211_iterate_active_interfaces(
rcu_read_unlock();
}
EXPORT_SYMBOL_GPL(ieee80211_iterate_active_interfaces);
#ifdef CONFIG_MAC80211_MESH
/**
* ieee80211_new_mesh_header - create a new mesh header
* @meshhdr: uninitialized mesh header
* @sdata: mesh interface to be used
*
* Return the header length.
*/
int ieee80211_new_mesh_header(struct ieee80211s_hdr *meshhdr,
struct ieee80211_sub_if_data *sdata)
{
meshhdr->flags = 0;
meshhdr->ttl = sdata->u.sta.mshcfg.dot11MeshTTL;
meshhdr->seqnum[0] = sdata->u.sta.mesh_seqnum[0]++;
meshhdr->seqnum[1] = sdata->u.sta.mesh_seqnum[1];
meshhdr->seqnum[2] = sdata->u.sta.mesh_seqnum[2];
if (sdata->u.sta.mesh_seqnum[0] == 0) {
sdata->u.sta.mesh_seqnum[1]++;
if (sdata->u.sta.mesh_seqnum[1] == 0)
sdata->u.sta.mesh_seqnum[2]++;
}
return 5;
}
#endif