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wireless: restrict to 32 legacy rates 

Since the standards only define 12 legacy rates, 32 is certainly
a sane upper limit and we don't need to use u64 everywhere. Add
sanity checking that no more than 32 rates are registered and
change the variables to u32 throughout.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Johannes Berg 2009-01-21 15:13:48 +01:00 committed by John W. Linville
parent 369391db1a
commit 881d948c23
14 changed files with 35 additions and 29 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/net/wireless/b43/main.c
View File

@ -3398,7 +3398,7 @@ out_unlock_mutex:
return err; return err;
} }
static void b43_update_basic_rates(struct b43_wldev *dev, u64 brates) static void b43_update_basic_rates(struct b43_wldev *dev, u32 brates)
{ {
struct ieee80211_supported_band *sband = struct ieee80211_supported_band *sband =
dev->wl->hw->wiphy->bands[b43_current_band(dev->wl)]; dev->wl->hw->wiphy->bands[b43_current_band(dev->wl)];

2
drivers/net/wireless/b43legacy/main.c
View File

@ -2650,7 +2650,7 @@ out_unlock_mutex:
return err; return err;
} }
static void b43legacy_update_basic_rates(struct b43legacy_wldev *dev, u64 brates) static void b43legacy_update_basic_rates(struct b43legacy_wldev *dev, u32 brates)
{ {
struct ieee80211_supported_band *sband = struct ieee80211_supported_band *sband =
dev->wl->hw->wiphy->bands[IEEE80211_BAND_2GHZ]; dev->wl->hw->wiphy->bands[IEEE80211_BAND_2GHZ];

2
drivers/net/wireless/p54/p54.h
View File

@ -144,7 +144,7 @@ struct p54_common {
unsigned int output_power; unsigned int output_power;
u32 tsf_low32; u32 tsf_low32;
u32 tsf_high32; u32 tsf_high32;
u64 basic_rate_mask; u32 basic_rate_mask;
u16 wakeup_timer; u16 wakeup_timer;
u16 aid; u16 aid;
struct ieee80211_tx_queue_stats tx_stats[8]; struct ieee80211_tx_queue_stats tx_stats[8];

2
drivers/net/wireless/rt2x00/rt2x00.h
View File

@ -396,7 +396,7 @@ struct rt2x00lib_erp {
int ack_timeout; int ack_timeout;
int ack_consume_time; int ack_consume_time;
u64 basic_rates; u32 basic_rates;
int slot_time; int slot_time;

4
include/net/mac80211.h
View File

@ -207,7 +207,7 @@ struct ieee80211_bss_conf {
u16 beacon_int; u16 beacon_int;
u16 assoc_capability; u16 assoc_capability;
u64 timestamp; u64 timestamp;
u64 basic_rates; u32 basic_rates;
struct ieee80211_bss_ht_conf ht; struct ieee80211_bss_ht_conf ht;
}; };
@ -761,7 +761,7 @@ enum set_key_cmd {
* sizeof(void *), size is determined in hw information. * sizeof(void *), size is determined in hw information.
*/ */
struct ieee80211_sta { struct ieee80211_sta {
u64 supp_rates[IEEE80211_NUM_BANDS]; u32 supp_rates[IEEE80211_NUM_BANDS];
u8 addr[ETH_ALEN]; u8 addr[ETH_ALEN];
u16 aid; u16 aid;
struct ieee80211_sta_ht_cap ht_cap; struct ieee80211_sta_ht_cap ht_cap;

2
include/net/wireless.h
View File

@ -367,7 +367,7 @@ ieee80211_get_channel(struct wiphy *wiphy, int freq)
*/ */
struct ieee80211_rate * struct ieee80211_rate *
ieee80211_get_response_rate(struct ieee80211_supported_band *sband, ieee80211_get_response_rate(struct ieee80211_supported_band *sband,
u64 basic_rates, int bitrate); u32 basic_rates, int bitrate);
/** /**
* regulatory_hint - driver hint to the wireless core a regulatory domain * regulatory_hint - driver hint to the wireless core a regulatory domain

6
net/mac80211/ieee80211_i.h
View File

@ -909,11 +909,11 @@ int ieee80211_sta_set_bssid(struct ieee80211_sub_if_data *sdata, u8 *bssid);
void ieee80211_sta_req_auth(struct ieee80211_sub_if_data *sdata, void ieee80211_sta_req_auth(struct ieee80211_sub_if_data *sdata,
struct ieee80211_if_sta *ifsta); struct ieee80211_if_sta *ifsta);
struct sta_info *ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata, struct sta_info *ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata,
u8 *bssid, u8 *addr, u64 supp_rates); u8 *bssid, u8 *addr, u32 supp_rates);
int ieee80211_sta_deauthenticate(struct ieee80211_sub_if_data *sdata, u16 reason); int ieee80211_sta_deauthenticate(struct ieee80211_sub_if_data *sdata, u16 reason);
int ieee80211_sta_disassociate(struct ieee80211_sub_if_data *sdata, u16 reason); int ieee80211_sta_disassociate(struct ieee80211_sub_if_data *sdata, u16 reason);
u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata); u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
u64 ieee80211_sta_get_rates(struct ieee80211_local *local, u32 ieee80211_sta_get_rates(struct ieee80211_local *local,
struct ieee802_11_elems *elems, struct ieee802_11_elems *elems,
enum ieee80211_band band); enum ieee80211_band band);
void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst, void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
@ -1026,7 +1026,7 @@ void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
void ieee802_11_parse_elems(u8 *start, size_t len, void ieee802_11_parse_elems(u8 *start, size_t len,
struct ieee802_11_elems *elems); struct ieee802_11_elems *elems);
int ieee80211_set_freq(struct ieee80211_sub_if_data *sdata, int freq); int ieee80211_set_freq(struct ieee80211_sub_if_data *sdata, int freq);
u64 ieee80211_mandatory_rates(struct ieee80211_local *local, u32 ieee80211_mandatory_rates(struct ieee80211_local *local,
enum ieee80211_band band); enum ieee80211_band band);
void ieee80211_dynamic_ps_enable_work(struct work_struct *work); void ieee80211_dynamic_ps_enable_work(struct work_struct *work);

2
net/mac80211/mesh.c
View File

@ -476,7 +476,7 @@ static void ieee80211_mesh_rx_bcn_presp(struct ieee80211_sub_if_data *sdata,
struct ieee80211_local *local = sdata->local; struct ieee80211_local *local = sdata->local;
struct ieee802_11_elems elems; struct ieee802_11_elems elems;
struct ieee80211_channel *channel; struct ieee80211_channel *channel;
u64 supp_rates = 0; u32 supp_rates = 0;
size_t baselen; size_t baselen;
int freq; int freq;
enum ieee80211_band band = rx_status->band; enum ieee80211_band band = rx_status->band;

2
net/mac80211/mesh.h
View File

@ -236,7 +236,7 @@ void mesh_rx_path_sel_frame(struct ieee80211_sub_if_data *sdata,
struct ieee80211_mgmt *mgmt, size_t len); struct ieee80211_mgmt *mgmt, size_t len);
int mesh_path_add(u8 *dst, struct ieee80211_sub_if_data *sdata); int mesh_path_add(u8 *dst, struct ieee80211_sub_if_data *sdata);
/* Mesh plinks */ /* Mesh plinks */
void mesh_neighbour_update(u8 *hw_addr, u64 rates, void mesh_neighbour_update(u8 *hw_addr, u32 rates,
struct ieee80211_sub_if_data *sdata, bool add); struct ieee80211_sub_if_data *sdata, bool add);
bool mesh_peer_accepts_plinks(struct ieee802_11_elems *ie); bool mesh_peer_accepts_plinks(struct ieee802_11_elems *ie);
void mesh_accept_plinks_update(struct ieee80211_sub_if_data *sdata); void mesh_accept_plinks_update(struct ieee80211_sub_if_data *sdata);

6
net/mac80211/mesh_plink.c
View File

@ -93,7 +93,7 @@ static inline void mesh_plink_fsm_restart(struct sta_info *sta)
* on it in the lifecycle management section! * on it in the lifecycle management section!
*/ */
static struct sta_info *mesh_plink_alloc(struct ieee80211_sub_if_data *sdata, static struct sta_info *mesh_plink_alloc(struct ieee80211_sub_if_data *sdata,
u8 *hw_addr, u64 rates) u8 *hw_addr, u32 rates)
{ {
struct ieee80211_local *local = sdata->local; struct ieee80211_local *local = sdata->local;
struct sta_info *sta; struct sta_info *sta;
@ -222,7 +222,7 @@ static int mesh_plink_frame_tx(struct ieee80211_sub_if_data *sdata,
return 0; return 0;
} }
void mesh_neighbour_update(u8 *hw_addr, u64 rates, struct ieee80211_sub_if_data *sdata, void mesh_neighbour_update(u8 *hw_addr, u32 rates, struct ieee80211_sub_if_data *sdata,
bool peer_accepting_plinks) bool peer_accepting_plinks)
{ {
struct ieee80211_local *local = sdata->local; struct ieee80211_local *local = sdata->local;
@ -447,7 +447,7 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m
spin_lock_bh(&sta->lock); spin_lock_bh(&sta->lock);
} else if (!sta) { } else if (!sta) {
/* ftype == PLINK_OPEN */ /* ftype == PLINK_OPEN */
u64 rates; u32 rates;
if (!mesh_plink_free_count(sdata)) { if (!mesh_plink_free_count(sdata)) {
mpl_dbg("Mesh plink error: no more free plinks\n"); mpl_dbg("Mesh plink error: no more free plinks\n");
rcu_read_unlock(); rcu_read_unlock();

16
net/mac80211/mlme.c
View File

@ -73,7 +73,7 @@ static u8 *ieee80211_bss_get_ie(struct ieee80211_bss *bss, u8 ie)
static int ieee80211_compatible_rates(struct ieee80211_bss *bss, static int ieee80211_compatible_rates(struct ieee80211_bss *bss,
struct ieee80211_supported_band *sband, struct ieee80211_supported_band *sband,
u64 *rates) u32 *rates)
{ {
int i, j, count; int i, j, count;
*rates = 0; *rates = 0;
@ -93,14 +93,14 @@ static int ieee80211_compatible_rates(struct ieee80211_bss *bss,
} }
/* also used by mesh code */ /* also used by mesh code */
u64 ieee80211_sta_get_rates(struct ieee80211_local *local, u32 ieee80211_sta_get_rates(struct ieee80211_local *local,
struct ieee802_11_elems *elems, struct ieee802_11_elems *elems,
enum ieee80211_band band) enum ieee80211_band band)
{ {
struct ieee80211_supported_band *sband; struct ieee80211_supported_band *sband;
struct ieee80211_rate *bitrates; struct ieee80211_rate *bitrates;
size_t num_rates; size_t num_rates;
u64 supp_rates; u32 supp_rates;
int i, j; int i, j;
sband = local->hw.wiphy->bands[band]; sband = local->hw.wiphy->bands[band];
@ -253,7 +253,7 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata,
struct ieee80211_bss *bss; struct ieee80211_bss *bss;
int wmm = 0; int wmm = 0;
struct ieee80211_supported_band *sband; struct ieee80211_supported_band *sband;
u64 rates = 0; u32 rates = 0;
size_t e_ies_len; size_t e_ies_len;
if (ifsta->flags & IEEE80211_STA_PREV_BSSID_SET) { if (ifsta->flags & IEEE80211_STA_PREV_BSSID_SET) {
@ -1282,7 +1282,7 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
struct ieee80211_local *local = sdata->local; struct ieee80211_local *local = sdata->local;
struct ieee80211_supported_band *sband; struct ieee80211_supported_band *sband;
struct sta_info *sta; struct sta_info *sta;
u64 rates, basic_rates; u32 rates, basic_rates;
u16 capab_info, status_code, aid; u16 capab_info, status_code, aid;
struct ieee802_11_elems elems; struct ieee802_11_elems elems;
struct ieee80211_bss_conf *bss_conf = &sdata->vif.bss_conf; struct ieee80211_bss_conf *bss_conf = &sdata->vif.bss_conf;
@ -1639,7 +1639,7 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
struct sta_info *sta; struct sta_info *sta;
struct ieee80211_channel *channel; struct ieee80211_channel *channel;
u64 beacon_timestamp, rx_timestamp; u64 beacon_timestamp, rx_timestamp;
u64 supp_rates = 0; u32 supp_rates = 0;
enum ieee80211_band band = rx_status->band; enum ieee80211_band band = rx_status->band;
if (elems->ds_params && elems->ds_params_len == 1) if (elems->ds_params && elems->ds_params_len == 1)
@ -1660,7 +1660,7 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
sta = sta_info_get(local, mgmt->sa); sta = sta_info_get(local, mgmt->sa);
if (sta) { if (sta) {
u64 prev_rates; u32 prev_rates;
prev_rates = sta->sta.supp_rates[band]; prev_rates = sta->sta.supp_rates[band];
/* make sure mandatory rates are always added */ /* make sure mandatory rates are always added */
@ -2526,7 +2526,7 @@ void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata)
* must be callable in atomic context. * must be callable in atomic context.
*/ */
struct sta_info *ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata, struct sta_info *ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata,
u8 *bssid,u8 *addr, u64 supp_rates) u8 *bssid,u8 *addr, u32 supp_rates)
{ {
struct ieee80211_local *local = sdata->local; struct ieee80211_local *local = sdata->local;
struct sta_info *sta; struct sta_info *sta;

4
net/mac80211/util.c
View File

@ -731,12 +731,12 @@ int ieee80211_set_freq(struct ieee80211_sub_if_data *sdata, int freqMHz)
return ret; return ret;
} }
u64 ieee80211_mandatory_rates(struct ieee80211_local *local, u32 ieee80211_mandatory_rates(struct ieee80211_local *local,
enum ieee80211_band band) enum ieee80211_band band)
{ {
struct ieee80211_supported_band *sband; struct ieee80211_supported_band *sband;
struct ieee80211_rate *bitrates; struct ieee80211_rate *bitrates;
u64 mandatory_rates; u32 mandatory_rates;
enum ieee80211_rate_flags mandatory_flag; enum ieee80211_rate_flags mandatory_flag;
int i; int i;

12
net/wireless/core.c
View File

@ -273,10 +273,16 @@ int wiphy_register(struct wiphy *wiphy)
sband->band = band; sband->band = band;
if (!sband->n_channels || !sband->n_bitrates) { if (WARN_ON(!sband->n_channels || !sband->n_bitrates))
WARN_ON(1); return -EINVAL;
/*
* Since we use a u32 for rate bitmaps in
* ieee80211_get_response_rate, we cannot
* have more than 32 legacy rates.
*/
if (WARN_ON(sband->n_bitrates > 32))
return -EINVAL; return -EINVAL;
}
for (i = 0; i < sband->n_channels; i++) { for (i = 0; i < sband->n_channels; i++) {
sband->channels[i].orig_flags = sband->channels[i].orig_flags =

2
net/wireless/util.c
View File

@ -9,7 +9,7 @@
struct ieee80211_rate * struct ieee80211_rate *
ieee80211_get_response_rate(struct ieee80211_supported_band *sband, ieee80211_get_response_rate(struct ieee80211_supported_band *sband,
u64 basic_rates, int bitrate) u32 basic_rates, int bitrate)
{ {
struct ieee80211_rate *result = &sband->bitrates[0]; struct ieee80211_rate *result = &sband->bitrates[0];
int i; int i;