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libs/iwinfo: find/autocreate madwifi vap if scan on wifi0 is requested

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This commit is contained in:
Jo-Philipp Wich 2009-09-23 18:04:29 +00:00
parent 79022dcc63
commit 48465cebab
1 changed files with 95 additions and 9 deletions
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98
libs/iwinfo/src/iwinfo_madwifi.c
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@ -59,27 +59,62 @@ static int get80211priv(const char *ifname, int op, void *data, size_t len)
return iwr.u.data.length;
}
int madwifi_probe(const char *ifname)
static int madwifi_isvap(const char *ifname, const char *wifiname)
{
int fd, ret;
char path[32];
char name[5];
char name[IFNAMSIZ];
sprintf(path, "/proc/sys/net/%s/%%parent", ifname);
ret = 0;
if( strlen(ifname) <= 9 )
{
sprintf(path, "/proc/sys/net/%s/%%parent", ifname);
if( (fd = open(path, O_RDONLY)) > -1 )
{
if( read(fd, name, 4) == 4 )
if( wifiname != NULL )
{
if( read(fd, name, strlen(wifiname)) == strlen(wifiname) )
ret = strncmp(name, wifiname, strlen(wifiname)) ? 0 : 1;
}
else if( read(fd, name, 4) == 4 )
{
ret = strncmp(name, "wifi", 4) ? 0 : 1;
}
(void) close(fd);
}
}
return ret;
}
static int madwifi_iswifi(const char *ifname)
{
int ret;
char path[32];
struct stat s;
ret = 0;
if( strlen(ifname) <= 7 )
{
sprintf(path, "/proc/sys/dev/%s/diversity", ifname);
if( ! stat(path, &s) )
ret = (s.st_mode & S_IFREG);
}
return ret;
}
int madwifi_probe(const char *ifname)
{
return ( madwifi_isvap(ifname, NULL) || madwifi_iswifi(ifname) );
}
int madwifi_get_mode(const char *ifname, char *buf)
{
return wext_get_mode(ifname, buf);
@ -405,7 +440,58 @@ int madwifi_get_txpwrlist(const char *ifname, char *buf, int *len)
int madwifi_get_scanlist(const char *ifname, char *buf, int *len)
{
return wext_get_scanlist(ifname, buf, len);
int ret;
char cmd[256];
DIR *proc;
struct dirent *e;
ret = -1;
/* We got a wifiX device passed, try to lookup a vap on it */
if( madwifi_iswifi(ifname) )
{
if( (proc = opendir("/proc/sys/net/")) != NULL )
{
while( (e = readdir(proc)) != NULL )
{
if( madwifi_isvap(e->d_name, ifname) )
{
sprintf(cmd, "ifconfig %s up", e->d_name);
if( ! WEXITSTATUS(system(cmd)) )
{
ret = wext_get_scanlist(e->d_name, buf, len);
break;
}
}
}
closedir(proc);
}
/* Still nothing found, try to create a vap */
if( ret == -1 )
{
sprintf(cmd, "wlanconfig ath-scan create nounit "
"wlandev %s wlanmode sta >/dev/null", ifname);
if( ! WEXITSTATUS(system(cmd)) && ! WEXITSTATUS(system("ifconfig ath-scan up")) )
{
ret = wext_get_scanlist("ath-scan", buf, len);
(void) WEXITSTATUS(system("ifconfig ath-scan down"));
(void) WEXITSTATUS(system("wlanconfig ath-scan destroy"));
}
}
}
/* Got athX device? */
else if( madwifi_isvap(ifname, NULL) )
{
ret = wext_get_scanlist(ifname, buf, len);
}
return ret;
}
int madwifi_get_mbssid_support(const char *ifname, int *buf)