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fix hostapd/madwifi crash (#247)

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SVN-Revision: 3102
This commit is contained in:
Felix Fietkau 2006-01-31 21:45:23 +00:00
parent 9b6ad4ad9e
commit 752413e7f0
2 changed files with 85 additions and 0 deletions
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58
openwrt/package/hostapd/patches/100-wpa_fix.patch Normal file
View file

@ -0,0 +1,58 @@
--- hostapd-0.4.7/driver_madwifi.c 2006-01-30 10:00:44.199096000 -0800
+++ hostapd-0.4.7-new/driver_madwifi.c 2006-01-30 10:05:55.925511000 -0800
@@ -692,6 +692,7 @@
struct hostapd_data *hapd = drv->hapd;
struct ieee80211req_wpaie ie;
int ielen, res;
+ int rsn = 0;
/*
* Fetch negotiated WPA/RSN parameters from the system.
@@ -702,26 +703,37 @@
printf("Failed to get WPA/RSN information element.\n");
return -1; /* XXX not right */
}
- ielen = ie.wpa_ie[1];
- if (ielen == 0) {
+ if ((ie.wpa_ie[1] == 0) && (ie.rsn_ie[1] == 0)){
printf("No WPA/RSN information element for station!?\n");
return -1; /* XXX not right */
}
+ ielen = ie.rsn_ie[1];
ielen += 2;
- res = wpa_validate_wpa_ie(hapd, sta, ie.wpa_ie, ielen,
- ie.wpa_ie[0] == WLAN_EID_RSN ?
- HOSTAPD_WPA_VERSION_WPA2 : HOSTAPD_WPA_VERSION_WPA);
- if (res != WPA_IE_OK) {
- printf("WPA/RSN information element rejected? (res %u)\n", res);
- return -1;
- }
+ res = wpa_validate_wpa_ie(hapd, sta, ie.rsn_ie, ielen,
+ HOSTAPD_WPA_VERSION_WPA2);
+ if (res != WPA_IE_OK){
+ // now look for WPA IE
+ ielen = ie.wpa_ie[1];
+ ielen += 2;
+ res = wpa_validate_wpa_ie(hapd, sta, ie.wpa_ie, ielen,
+ HOSTAPD_WPA_VERSION_WPA);
+ if (res != WPA_IE_OK) {
+ printf("WPA/RSN information element rejected? (res %u)\n", res);
+ return -1;
+ }
+ } else {
+ rsn = 1;
+ }
free(sta->wpa_ie);
sta->wpa_ie = malloc(ielen);
if (sta->wpa_ie == NULL) {
printf("No memory to save WPA/RSN information element!\n");
return -1;
}
- memcpy(sta->wpa_ie, ie.wpa_ie, ielen);
+ if (rsn)
+ memcpy(sta->wpa_ie, ie.rsn_ie, ielen);
+ else
+ memcpy(sta->wpa_ie, ie.wpa_ie, ielen);
sta->wpa_ie_len = ielen;
return 0;
}

27
openwrt/target/linux/package/madwifi/patches/103-wpa_crash.patch Normal file
View file

@ -0,0 +1,27 @@
diff -urN madwifi.old/net80211/ieee80211_ioctl.h madwifi.dev/net80211/ieee80211_ioctl.h
--- madwifi.old/net80211/ieee80211_ioctl.h 2005-12-07 03:53:07.000000000 +0100
+++ madwifi.dev/net80211/ieee80211_ioctl.h 2006-01-31 22:33:21.282491500 +0100
@@ -277,6 +277,7 @@
struct ieee80211req_wpaie {
u_int8_t wpa_macaddr[IEEE80211_ADDR_LEN];
u_int8_t wpa_ie[IEEE80211_MAX_OPT_IE];
+ u_int8_t rsn_ie[IEEE80211_MAX_OPT_IE];
};
/*
diff -urN madwifi.old/net80211/ieee80211_wireless.c madwifi.dev/net80211/ieee80211_wireless.c
--- madwifi.old/net80211/ieee80211_wireless.c 2006-01-23 08:07:51.000000000 +0100
+++ madwifi.dev/net80211/ieee80211_wireless.c 2006-01-31 22:33:21.286491750 +0100
@@ -3160,6 +3160,12 @@
ielen = sizeof(wpaie.wpa_ie);
memcpy(wpaie.wpa_ie, ni->ni_wpa_ie, ielen);
}
+ if (ni->ni_rsn_ie != NULL) {
+ int ielen = ni->ni_rsn_ie[1] + 2;
+ if (ielen > sizeof(wpaie.rsn_ie))
+ ielen = sizeof(wpaie.rsn_ie);
+ memcpy(wpaie.rsn_ie, ni->ni_rsn_ie, ielen);
+ }
ieee80211_free_node(ni);
return (copy_to_user(iwr->u.data.pointer, &wpaie, sizeof(wpaie)) ?
-EFAULT : 0);