return rv;
}
+static inline int nl80211_readint(const char *path)
+{
+ int fd;
+ int rv = -1;
+ char buffer[16];
+
+ if( (fd = open(path, O_RDONLY)) > -1 )
+ {
+ if( read(fd, buffer, sizeof(buffer)) > 0 )
+ rv = atoi(buffer);
+
+ close(fd);
+ }
+
+ return rv;
+}
+
static char * nl80211_phy2ifname(const char *ifname)
{
- int fd, phyidx = -1;
+ int fd, ifidx = -1, cifidx = -1, phyidx = -1;
char buffer[64];
static char nif[IFNAMSIZ] = { 0 };
DIR *d;
struct dirent *e;
- if( !strncmp(ifname, "phy", 3) )
+ if( !ifname )
+ return NULL;
+ else if( !strncmp(ifname, "phy", 3) )
phyidx = atoi(&ifname[3]);
else if( !strncmp(ifname, "radio", 5) )
phyidx = atoi(&ifname[5]);
snprintf(buffer, sizeof(buffer),
"/sys/class/net/%s/phy80211/index", e->d_name);
- if( (fd = open(buffer, O_RDONLY)) > 0 )
+ if( nl80211_readint(buffer) == phyidx )
{
- if( (read(fd, buffer, sizeof(buffer)) > 0) &&
- (atoi(buffer) == phyidx) )
+ snprintf(buffer, sizeof(buffer),
+ "/sys/class/net/%s/ifindex", e->d_name);
+
+ if( (cifidx = nl80211_readint(buffer)) >= 0 &&
+ ((ifidx < 0) || (cifidx < ifidx)) )
{
+ ifidx = cifidx;
strncpy(nif, e->d_name, sizeof(nif));
}
-
- close(fd);
}
-
- if( nif[0] )
- break;
}
closedir(d);
int nl80211_get_channel(const char *ifname, int *buf)
{
- return wext_get_channel(ifname, buf);
+ char *first;
+
+ if( !wext_get_channel(ifname, buf) )
+ return 0;
+
+ else if( (first = nl80211_phy2ifname(nl80211_ifname2phy(ifname))) != NULL )
+ return wext_get_channel(first, buf);
+
+ return -1;
}
int nl80211_get_frequency(const char *ifname, int *buf)
{
- return wext_get_frequency(ifname, buf);
+ char *first;
+
+ if( !wext_get_frequency(ifname, buf) )
+ return 0;
+
+ else if( (first = nl80211_phy2ifname(nl80211_ifname2phy(ifname))) != NULL )
+ return wext_get_frequency(first, buf);
+
+ return -1;
}
int nl80211_get_txpower(const char *ifname, int *buf)
return -1;
}
-int nl80211_get_noise(const char *ifname, int *buf)
+static int nl80211_get_noise_cb(struct nl_msg *msg, void *arg)
{
- int rv = -1;
- struct nl80211_msg_conveyor *req, *res;
+ int8_t *noise = arg;
+ struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
+ struct nlattr *tb[NL80211_ATTR_MAX + 1];
struct nlattr *si[NL80211_SURVEY_INFO_MAX + 1];
static struct nla_policy sp[NL80211_SURVEY_INFO_MAX + 1] = {
[NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 },
};
+ nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
+ genlmsg_attrlen(gnlh, 0), NULL);
+
+ if (!tb[NL80211_ATTR_SURVEY_INFO])
+ return NL_SKIP;
+
+ if (nla_parse_nested(si, NL80211_SURVEY_INFO_MAX,
+ tb[NL80211_ATTR_SURVEY_INFO], sp))
+ return NL_SKIP;
+
+ if (!si[NL80211_SURVEY_INFO_NOISE])
+ return NL_SKIP;
+
+ if (!*noise || si[NL80211_SURVEY_INFO_IN_USE])
+ *noise = (int8_t)nla_get_u8(si[NL80211_SURVEY_INFO_NOISE]);
+
+ return NL_SKIP;
+}
+
+
+int nl80211_get_noise(const char *ifname, int *buf)
+{
+ int8_t noise;
+ struct nl80211_msg_conveyor *req;
+
req = nl80211_msg(ifname, NL80211_CMD_GET_SURVEY, NLM_F_DUMP);
- if( req )
+ if (req)
{
- res = nl80211_send(req);
- if( res )
+ noise = 0;
+
+ nl80211_cb(req, nl80211_get_noise_cb, &noise);
+ nl80211_send(req);
+ nl80211_free(req);
+
+ if (noise)
{
- if( res->attr[NL80211_ATTR_SURVEY_INFO] )
- {
- if( !nla_parse_nested(si, NL80211_SURVEY_INFO_MAX,
- res->attr[NL80211_ATTR_SURVEY_INFO], sp) &&
- si[NL80211_SURVEY_INFO_NOISE] )
- {
- *buf = (int8_t)nla_get_u8(si[NL80211_SURVEY_INFO_NOISE]);
- rv = 0;
- }
- }
- nl80211_free(res);
+ *buf = noise;
+ return 0;
}
- nl80211_free(req);
}
- return rv;
+ return -1;
}
int nl80211_get_quality(const char *ifname, int *buf)
/* Hostapd */
if( (res = nl80211_hostapd_info(ifname)) )
{
- if( (val = nl80211_getval(ifname, res, "auth_algs")) && (val > 0) )
- {
+ if( (val = nl80211_getval(ifname, res, "wpa")) != NULL )
+ c->wpa_version = atoi(val);
+
+ val = nl80211_getval(ifname, res, "wpa_key_mgmt");
+
+ if( !val || strstr(val, "PSK") )
+ c->auth_suites |= IWINFO_KMGMT_PSK;
+
+ if( val && strstr(val, "EAP") )
+ c->auth_suites |= IWINFO_KMGMT_8021x;
+
+ if( val && strstr(val, "NONE") )
c->auth_suites |= IWINFO_KMGMT_NONE;
+ if( (val = nl80211_getval(ifname, res, "wpa_pairwise")) != NULL )
+ {
+ if( strstr(val, "TKIP") )
+ c->pair_ciphers |= IWINFO_CIPHER_TKIP;
+
+ if( strstr(val, "CCMP") )
+ c->pair_ciphers |= IWINFO_CIPHER_CCMP;
+
+ if( strstr(val, "NONE") )
+ c->pair_ciphers |= IWINFO_CIPHER_NONE;
+ }
+
+ if( (val = nl80211_getval(ifname, res, "auth_algs")) != NULL )
+ {
switch(atoi(val)) {
case 1:
c->auth_algs |= IWINFO_AUTH_OPEN;
c->pair_ciphers |= IWINFO_CIPHER_WEP104;
}
}
-
- c->group_ciphers = c->pair_ciphers;
-
- return 0;
- }
-
-
- if( (val = nl80211_getval(ifname, res, "wpa")) != NULL )
- c->wpa_version = atoi(val);
-
-
- val = nl80211_getval(ifname, res, "wpa_key_mgmt");
-
- if( !val || strstr(val, "PSK") )
- c->auth_suites |= IWINFO_KMGMT_PSK;
-
- if( val && strstr(val, "EAP") )
- c->auth_suites |= IWINFO_KMGMT_8021x;
-
- if( val && strstr(val, "NONE") )
- c->auth_suites |= IWINFO_KMGMT_NONE;
-
-
- if( (val = nl80211_getval(ifname, res, "wpa_pairwise")) != NULL )
- {
- if( strstr(val, "TKIP") )
- c->pair_ciphers |= IWINFO_CIPHER_TKIP;
-
- if( strstr(val, "CCMP") )
- c->pair_ciphers |= IWINFO_CIPHER_CCMP;
-
- if( strstr(val, "NONE") )
- c->pair_ciphers |= IWINFO_CIPHER_NONE;
}
-
c->group_ciphers = c->pair_ciphers;
c->enabled = (c->auth_algs || c->auth_suites) ? 1 : 0;
static void nl80211_get_scancrypto(const char *spec,
struct iwinfo_crypto_entry *c)
{
- if( strstr(spec, "OPEN") )
- {
- c->enabled = 0;
- }
- else
+ if( strstr(spec, "WPA") || strstr(spec, "WEP") )
{
c->enabled = 1;
c->group_ciphers = c->pair_ciphers;
}
+ else
+ {
+ c->enabled = 0;
+ }
}
int nl80211_get_scanlist(const char *ifname, char *buf, int *len)
projects / project / luci.git / blobdiff