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Merge branch 'fixes-davem' of master.kernel.org:/pub/scm/linux/kernel/git/linville/wireless-2.6

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This commit is contained in:
David S. Miller 2007-10-18 21:57:27 -07:00
commit 70180659a4
1 changed files with 9 additions and 46 deletions
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55
net/mac80211/ieee80211_sta.c
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@ -108,14 +108,11 @@ struct ieee802_11_elems {
u8 wmm_param_len;
};
enum ParseRes { ParseOK = 0, ParseUnknown = 1, ParseFailed = -1 };
static enum ParseRes ieee802_11_parse_elems(u8 *start, size_t len,
struct ieee802_11_elems *elems)
static void ieee802_11_parse_elems(u8 *start, size_t len,
struct ieee802_11_elems *elems)
{
size_t left = len;
u8 *pos = start;
int unknown = 0;
memset(elems, 0, sizeof(*elems));
@ -126,15 +123,8 @@ static enum ParseRes ieee802_11_parse_elems(u8 *start, size_t len,
elen = *pos++;
left -= 2;
if (elen > left) {
#if 0
if (net_ratelimit())
printk(KERN_DEBUG "IEEE 802.11 element parse "
"failed (id=%d elen=%d left=%d)\n",
id, elen, left);
#endif
return ParseFailed;
}
if (elen > left)
return;
switch (id) {
case WLAN_EID_SSID:
@ -201,28 +191,15 @@ static enum ParseRes ieee802_11_parse_elems(u8 *start, size_t len,
elems->ext_supp_rates_len = elen;
break;
default:
#if 0
printk(KERN_DEBUG "IEEE 802.11 element parse ignored "
"unknown element (id=%d elen=%d)\n",
id, elen);
#endif
unknown++;
break;
}
left -= elen;
pos += elen;
}
/* Do not trigger error if left == 1 as Apple Airport base stations
* send AssocResps that are one spurious byte too long. */
return unknown ? ParseUnknown : ParseOK;
}
static int ecw2cw(int ecw)
{
int cw = 1;
@ -931,12 +908,7 @@ static void ieee80211_auth_challenge(struct net_device *dev,
printk(KERN_DEBUG "%s: replying to auth challenge\n", dev->name);
pos = mgmt->u.auth.variable;
if (ieee802_11_parse_elems(pos, len - (pos - (u8 *) mgmt), &elems)
== ParseFailed) {
printk(KERN_DEBUG "%s: failed to parse Auth(challenge)\n",
dev->name);
return;
}
ieee802_11_parse_elems(pos, len - (pos - (u8 *) mgmt), &elems);
if (!elems.challenge) {
printk(KERN_DEBUG "%s: no challenge IE in shared key auth "
"frame\n", dev->name);
@ -1230,12 +1202,7 @@ static void ieee80211_rx_mgmt_assoc_resp(struct net_device *dev,
aid &= ~(BIT(15) | BIT(14));
pos = mgmt->u.assoc_resp.variable;
if (ieee802_11_parse_elems(pos, len - (pos - (u8 *) mgmt), &elems)
== ParseFailed) {
printk(KERN_DEBUG "%s: failed to parse AssocResp\n",
dev->name);
return;
}
ieee802_11_parse_elems(pos, len - (pos - (u8 *) mgmt), &elems);
if (!elems.supp_rates) {
printk(KERN_DEBUG "%s: no SuppRates element in AssocResp\n",
@ -1459,7 +1426,7 @@ static void ieee80211_rx_bss_info(struct net_device *dev,
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
struct ieee802_11_elems elems;
size_t baselen;
int channel, invalid = 0, clen;
int channel, clen;
struct ieee80211_sta_bss *bss;
struct sta_info *sta;
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
@ -1505,9 +1472,7 @@ static void ieee80211_rx_bss_info(struct net_device *dev,
#endif /* CONFIG_MAC80211_IBSS_DEBUG */
}
if (ieee802_11_parse_elems(mgmt->u.beacon.variable, len - baselen,
&elems) == ParseFailed)
invalid = 1;
ieee802_11_parse_elems(mgmt->u.beacon.variable, len - baselen, &elems);
if (sdata->type == IEEE80211_IF_TYPE_IBSS && elems.supp_rates &&
memcmp(mgmt->bssid, sdata->u.sta.bssid, ETH_ALEN) == 0 &&
@ -1724,9 +1689,7 @@ static void ieee80211_rx_mgmt_beacon(struct net_device *dev,
if (baselen > len)
return;
if (ieee802_11_parse_elems(mgmt->u.beacon.variable, len - baselen,
&elems) == ParseFailed)
return;
ieee802_11_parse_elems(mgmt->u.beacon.variable, len - baselen, &elems);
if (elems.erp_info && elems.erp_info_len >= 1)
ieee80211_handle_erp_ie(dev, elems.erp_info[0]);