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-rw-r--r--package/network/utils/iwinfo/src/iwinfo_nl80211.c63
1 files changed, 47 insertions, 16 deletions
diff --git a/package/network/utils/iwinfo/src/iwinfo_nl80211.c b/package/network/utils/iwinfo/src/iwinfo_nl80211.c
index 700410939d..051d34dd1c 100644
--- a/package/network/utils/iwinfo/src/iwinfo_nl80211.c
+++ b/package/network/utils/iwinfo/src/iwinfo_nl80211.c
@@ -540,16 +540,21 @@ static char * nl80211_wpactl_info(const char *ifname, const char *cmd,
{
send(sock, "ATTACH", 6, 0);
- if (nl80211_wpactl_recv(sock, buffer, sizeof(buffer)) <= 0)
+ if (nl80211_wpactl_recv(sock, buffer, sizeof(buffer)-1) <= 0)
goto out;
}
send(sock, cmd, strlen(cmd), 0);
- while( numtry++ < 5 )
+ /* we might have to scan up to 72 channels / 256ms per channel */
+ /* this makes up to 18.5s hence 10 tries */
+ while( numtry++ < 10 )
{
- if (nl80211_wpactl_recv(sock, buffer, sizeof(buffer)) <= 0)
+ char *bracket;
+
+ /* make sure there is a terminating nul byte */
+ if (nl80211_wpactl_recv(sock, buffer, sizeof(buffer)-1) <= 0)
{
if (event)
continue;
@@ -559,6 +564,13 @@ static char * nl80211_wpactl_info(const char *ifname, const char *cmd,
if ((!event && buffer[0] != '<') || (event && strstr(buffer, event)))
break;
+
+ /* there may be more than max(numtry) BSS-ADDED events */
+ /* ignore them similar to wpa_cli */
+ if (buffer[0] == '<' &&
+ (bracket=strchr(buffer,'>')) != NULL &&
+ strncmp(bracket+1,"CTRL-EVENT-BSS-ADDED",20) == 0)
+ numtry--;
}
rv = buffer;
@@ -1751,8 +1763,10 @@ static int nl80211_get_scanlist_cb(struct nl_msg *msg, void *arg)
if (caps & (1<<1))
sl->e->mode = IWINFO_OPMODE_ADHOC;
- else
+ else if (caps & (1<<0))
sl->e->mode = IWINFO_OPMODE_MASTER;
+ else
+ sl->e->mode = IWINFO_OPMODE_MESHPOINT;
if (caps & (1<<4))
sl->e->crypto.enabled = 1;
@@ -1852,14 +1866,26 @@ int nl80211_get_scanlist(const char *ifname, char *buf, int *len)
{
nl80211_get_quality_max(ifname, &qmax);
- /* skip header line */
- while (*res++ != '\n');
-
- count = 0;
+ count = -1;
- while (sscanf(res, "%17s %d %d %255s%*[ \t]%127[^\n]\n",
- bssid, &freq, &rssi, cipher, ssid) > 0)
- {
+ do {
+ if (res[0] == '<')
+ {
+ /* skip log lines */
+ goto nextline;
+ }
+ if (count < 0)
+ {
+ /* skip header line */
+ count++;
+ goto nextline;
+ }
+ if (sscanf(res, "%17s %d %d %255s%*[ \t]%127[^\n]\n",
+ bssid, &freq, &rssi, cipher, ssid) < 5)
+ {
+ /* skip malformed lines */
+ goto nextline;
+ }
/* BSSID */
e->mac[0] = strtol(&bssid[0], NULL, 16);
e->mac[1] = strtol(&bssid[3], NULL, 16);
@@ -1872,7 +1898,10 @@ int nl80211_get_scanlist(const char *ifname, char *buf, int *len)
memcpy(e->ssid, ssid, min(strlen(ssid), sizeof(e->ssid) - 1));
/* Mode (assume master) */
- e->mode = IWINFO_OPMODE_MASTER;
+ if (strstr(cipher,"[MESH]"))
+ e->mode = IWINFO_OPMODE_MESHPOINT;
+ else
+ e->mode = IWINFO_OPMODE_MASTER;
/* Channel */
e->channel = nl80211_freq2channel(freq);
@@ -1904,16 +1933,18 @@ int nl80211_get_scanlist(const char *ifname, char *buf, int *len)
/* Crypto */
nl80211_get_scancrypto(cipher, &e->crypto);
- /* advance to next line */
- while (*res && *res++ != '\n');
-
count++;
e++;
memset(ssid, 0, sizeof(ssid));
memset(bssid, 0, sizeof(bssid));
memset(cipher, 0, sizeof(cipher));
- }
+
+ nextline:
+ /* advance to next line */
+ while( *res && *res++ != '\n' );
+ }
+ while( *res );
*len = count * sizeof(struct iwinfo_scanlist_entry);
return 0;