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libiwinfo: correctly map BSS vars when parsing hostapd config

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This commit is contained in:
Jo-Philipp Wich 2010-10-21 16:28:12 +00:00
parent 5e45e4107b
commit 0d3fc50989
1 changed files with 25 additions and 15 deletions
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38
contrib/package/iwinfo/src/iwinfo_nl80211.c
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@ -236,13 +236,16 @@ static int nl80211_freq2channel(int freq)
return (freq / 5) - 1000; return (freq / 5) - 1000;
} }
static char * nl80211_getval(const char *buf, const char *key) static char * nl80211_getval(const char *ifname, const char *buf, const char *key)
{ {
int i, len; int i, len;
char lkey[64] = { 0 }; char lkey[64] = { 0 };
const char *ln = buf; const char *ln = buf;
static char lval[256] = { 0 }; static char lval[256] = { 0 };
int matched_if = ifname ? 0 : 1;
for( i = 0, len = strlen(buf); i < len; i++ ) for( i = 0, len = strlen(buf); i < len; i++ )
{ {
if( !lkey[0] && (buf[i] == ' ' || buf[i] == '\t') ) if( !lkey[0] && (buf[i] == ' ' || buf[i] == '\t') )
@ -256,13 +259,21 @@ static char * nl80211_getval(const char *buf, const char *key)
} }
else if( buf[i] == '\n' ) else if( buf[i] == '\n' )
{ {
if( lkey[0] && !strcmp(lkey, key) ) if( lkey[0] )
{ {
memcpy(lval, ln + strlen(lkey) + 1, memcpy(lval, ln + strlen(lkey) + 1,
min(sizeof(lval) - 1, &buf[i] - ln - strlen(lkey) - 1)); min(sizeof(lval) - 1, &buf[i] - ln - strlen(lkey) - 1));
if( (ifname != NULL ) &&
(!strcmp(lkey, "interface") || !strcmp(lkey, "bss")) )
{
matched_if = !strcmp(lval, ifname);
}
else if( matched_if && !strcmp(lkey, key) )
{
return lval; return lval;
} }
}
ln = &buf[i+1]; ln = &buf[i+1];
memset(lkey, 0, sizeof(lkey)); memset(lkey, 0, sizeof(lkey));
@ -507,7 +518,7 @@ int nl80211_get_ssid(const char *ifname, char *buf)
return 0; return 0;
} }
else if( (ssid = nl80211_hostapd_info(ifname)) && else if( (ssid = nl80211_hostapd_info(ifname)) &&
(ssid = nl80211_getval(ssid, "ssid")) ) (ssid = nl80211_getval(ifname, ssid, "ssid")) )
{ {
memcpy(buf, ssid, strlen(ssid)); memcpy(buf, ssid, strlen(ssid));
return 0; return 0;
@ -526,7 +537,7 @@ int nl80211_get_bssid(const char *ifname, char *buf)
return 0; return 0;
} }
else if( (bssid = nl80211_hostapd_info(ifname)) && else if( (bssid = nl80211_hostapd_info(ifname)) &&
(bssid = nl80211_getval(bssid, "bssid")) ) (bssid = nl80211_getval(ifname, bssid, "bssid")) )
{ {
mac[0] = strtol(&bssid[0], NULL, 16); mac[0] = strtol(&bssid[0], NULL, 16);
mac[1] = strtol(&bssid[3], NULL, 16); mac[1] = strtol(&bssid[3], NULL, 16);
@ -768,10 +779,9 @@ int nl80211_get_encryption(const char *ifname, char *buf)
struct iwinfo_crypto_entry *c = (struct iwinfo_crypto_entry *)buf; struct iwinfo_crypto_entry *c = (struct iwinfo_crypto_entry *)buf;
/* Hostapd */ /* Hostapd */
if( (res = nl80211_hostapd_info(ifname)) && if( (res = nl80211_hostapd_info(ifname)) )
nl80211_getval(res, "interface") )
{ {
if( (val = nl80211_getval(res, "auth_algs")) && (val > 0) ) if( (val = nl80211_getval(ifname, res, "auth_algs")) && (val > 0) )
{ {
c->auth_suites |= IWINFO_KMGMT_NONE; c->auth_suites |= IWINFO_KMGMT_NONE;
@ -797,7 +807,7 @@ int nl80211_get_encryption(const char *ifname, char *buf)
{ {
snprintf(k, sizeof(k), "wep_key%d", i); snprintf(k, sizeof(k), "wep_key%d", i);
if( (val = nl80211_getval(res, k)) ) if( (val = nl80211_getval(ifname, res, k)) )
{ {
if( (strlen(val) == 5) || (strlen(val) == 10) ) if( (strlen(val) == 5) || (strlen(val) == 10) )
c->pair_ciphers |= IWINFO_CIPHER_WEP40; c->pair_ciphers |= IWINFO_CIPHER_WEP40;
@ -813,11 +823,11 @@ int nl80211_get_encryption(const char *ifname, char *buf)
} }
if( (val = nl80211_getval(res, "wpa")) != NULL ) if( (val = nl80211_getval(ifname, res, "wpa")) != NULL )
c->wpa_version = atoi(val); c->wpa_version = atoi(val);
val = nl80211_getval(res, "wpa_key_mgmt"); val = nl80211_getval(ifname, res, "wpa_key_mgmt");
if( !val || strstr(val, "PSK") ) if( !val || strstr(val, "PSK") )
c->auth_suites |= IWINFO_KMGMT_PSK; c->auth_suites |= IWINFO_KMGMT_PSK;
@ -829,7 +839,7 @@ int nl80211_get_encryption(const char *ifname, char *buf)
c->auth_suites |= IWINFO_KMGMT_NONE; c->auth_suites |= IWINFO_KMGMT_NONE;
if( (val = nl80211_getval(res, "wpa_pairwise")) != NULL ) if( (val = nl80211_getval(ifname, res, "wpa_pairwise")) != NULL )
{ {
if( strstr(val, "TKIP") ) if( strstr(val, "TKIP") )
c->pair_ciphers |= IWINFO_CIPHER_TKIP; c->pair_ciphers |= IWINFO_CIPHER_TKIP;
@ -850,7 +860,7 @@ int nl80211_get_encryption(const char *ifname, char *buf)
/* WPA supplicant */ /* WPA supplicant */
else if( (res = nl80211_wpasupp_info(ifname, "STATUS")) && else if( (res = nl80211_wpasupp_info(ifname, "STATUS")) &&
(val = nl80211_getval(res, "pairwise_cipher")) ) (val = nl80211_getval(NULL, res, "pairwise_cipher")) )
{ {
/* WEP */ /* WEP */
if( strstr(val, "WEP") ) if( strstr(val, "WEP") )
@ -887,7 +897,7 @@ int nl80211_get_encryption(const char *ifname, char *buf)
c->pair_ciphers |= IWINFO_CIPHER_WEP104; c->pair_ciphers |= IWINFO_CIPHER_WEP104;
if( (val = nl80211_getval(res, "group_cipher")) ) if( (val = nl80211_getval(NULL, res, "group_cipher")) )
{ {
if( strstr(val, "TKIP") ) if( strstr(val, "TKIP") )
c->group_ciphers |= IWINFO_CIPHER_TKIP; c->group_ciphers |= IWINFO_CIPHER_TKIP;
@ -906,7 +916,7 @@ int nl80211_get_encryption(const char *ifname, char *buf)
} }
if( (val = nl80211_getval(res, "key_mgmt")) ) if( (val = nl80211_getval(NULL, res, "key_mgmt")) )
{ {
if( strstr(val, "WPA2") ) if( strstr(val, "WPA2") )
c->wpa_version = 2; c->wpa_version = 2;