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correctly handle endianess when parseing RSNE 

The length fields in the RSN elements are little endian. We
need to convert then to host order when reading.
This commit is contained in:
Andreas Schultz 2016-09-22 10:36:01 +02:00
parent cee735bf62
commit 247a65c7d5
2 changed files with 7 additions and 3 deletions
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6
src/binding/ieee80211/wifi_nl80211.c
View File

@ -1,3 +1,5 @@
#include <endian.h>
#include "wtp.h"
#include "array.h"
#include "list.h"
@ -903,7 +905,7 @@ static int nl80211_wlan_setbeacon(struct wifi_wlan* wlan) {
nla_put_u32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, ntohl(*(uint32_t *)data));
data += sizeof(uint32_t);
suites_num = *(uint16_t *)data;
suites_num = le16toh(*(uint16_t *)data);
data += 2;
suites = alloca(suites_num * sizeof(uint32_t));
@ -914,7 +916,7 @@ static int nl80211_wlan_setbeacon(struct wifi_wlan* wlan) {
}
nla_put(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, suites_num * sizeof(uint32_t), suites);
suites_num = *(uint16_t *)data;
suites_num = le16toh(*(uint16_t *)data);
data += 2;
suites = alloca(suites_num * sizeof(uint32_t));

4
src/radio.c
View File

@ -1,3 +1,5 @@
#include <endian.h>
#include "wtp.h"
#include "hash.h"
#include "list.h"
@ -970,7 +972,7 @@ uint32_t wtp_radio_add_station(struct capwap_parsed_packet* packet) {
data = (uint8_t *)(rsn + 1);
data += 2; // RSN Version
data += 4; // Group Chipher Suite
if (*(uint16_t *)data != 1) {
if (le16toh(*(uint16_t *)data) != 1) {
log_printf(LOG_DEBUG, "add_station: RSNE IE, wrong Pairwise Cipher Suite Count (%d)",
*(uint16_t *)data);
return CAPWAP_RESULTCODE_FAILURE;