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wiphy: Keep track of supported freqs & bands

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This commit is contained in:
Denis Kenzior 2015-10-06 15:23:32 -05:00
parent 22ab0e73a2
commit 5f55c07da9
1 changed files with 99 additions and 17 deletions
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116
src/wiphy.c
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@ -96,6 +96,7 @@ struct wiphy {
bool support_scheduled_scan:1;
bool support_rekey_offload:1;
uint16_t pairwise_ciphers;
struct scan_freq_set *supported_freqs;
};
struct autoconnect_entry {
@ -1004,6 +1005,7 @@ static void wiphy_free(void *data)
l_debug("Freeing wiphy %s", wiphy->name);
scan_freq_set_free(wiphy->supported_freqs);
l_queue_destroy(wiphy->netdev_list, netdev_free);
l_free(wiphy);
}
@ -1976,6 +1978,66 @@ static void parse_supported_ciphers(struct wiphy *wiphy, const void *data,
l_info("Wiphy supports TKIP: %s", s ? "true" : "false");
}
static void parse_supported_frequencies(struct wiphy *wiphy,
struct l_genl_attr *freqs)
{
uint16_t type, len;
const void *data;
struct l_genl_attr attr;
l_debug("");
while (l_genl_attr_next(freqs, NULL, NULL, NULL)) {
if (!l_genl_attr_recurse(freqs, &attr))
continue;
while (l_genl_attr_next(&attr, &type, &len, &data)) {
uint32_t u32;
switch (type) {
case NL80211_FREQUENCY_ATTR_FREQ:
u32 = *((uint32_t *) data);
scan_freq_set_add(wiphy->supported_freqs, u32);
break;
}
}
}
}
static void parse_supported_bands(struct wiphy *wiphy,
struct l_genl_attr *bands)
{
uint16_t type, len;
const void *data;
struct l_genl_attr attr;
l_debug("");
while (l_genl_attr_next(bands, NULL, NULL, NULL)) {
if (!l_genl_attr_recurse(bands, &attr))
continue;
while (l_genl_attr_next(&attr, &type, &len, &data)) {
struct l_genl_attr freqs;
switch (type) {
case NL80211_BAND_ATTR_FREQS:
if (!l_genl_attr_recurse(&attr, &freqs))
continue;
parse_supported_frequencies(wiphy, &freqs);
break;
}
}
}
}
#define FAIL_NO_WIPHY() \
if (!wiphy) { \
l_warn("No wiphy structure found"); \
return; \
} \
static void wiphy_dump_callback(struct l_genl_msg *msg, void *user_data)
{
struct wiphy *wiphy = NULL;
@ -2017,15 +2079,13 @@ static void wiphy_dump_callback(struct l_genl_msg *msg, void *user_data)
wiphy = l_new(struct wiphy, 1);
wiphy->id = id;
wiphy->netdev_list = l_queue_new();
wiphy->supported_freqs = scan_freq_set_new();
l_queue_push_head(wiphy_list, wiphy);
}
break;
case NL80211_ATTR_WIPHY_NAME:
if (!wiphy) {
l_warn("No wiphy structure found");
return;
}
FAIL_NO_WIPHY();
if (len > sizeof(wiphy->name)) {
l_warn("Invalid wiphy name attribute");
@ -2036,10 +2096,7 @@ static void wiphy_dump_callback(struct l_genl_msg *msg, void *user_data)
break;
case NL80211_ATTR_FEATURE_FLAGS:
if (!wiphy) {
l_warn("No wiphy structure found");
return;
}
FAIL_NO_WIPHY();
if (len != sizeof(uint32_t)) {
l_warn("Invalid feature flags attribute");
@ -2049,10 +2106,7 @@ static void wiphy_dump_callback(struct l_genl_msg *msg, void *user_data)
wiphy->feature_flags = *((uint32_t *) data);
break;
case NL80211_ATTR_SUPPORTED_COMMANDS:
if (!wiphy) {
l_warn("No wiphy structure found");
return;
}
FAIL_NO_WIPHY();
if (!l_genl_attr_recurse(&attr, &nested))
return;
@ -2060,17 +2114,44 @@ static void wiphy_dump_callback(struct l_genl_msg *msg, void *user_data)
parse_supported_commands(wiphy, &nested);
break;
case NL80211_ATTR_CIPHER_SUITES:
if (!wiphy) {
l_warn("No wiphy structure found");
return;
}
FAIL_NO_WIPHY();
parse_supported_ciphers(wiphy, data, len);
break;
case NL80211_ATTR_WIPHY_BANDS:
FAIL_NO_WIPHY();
if (!l_genl_attr_recurse(&attr, &nested))
return;
parse_supported_bands(wiphy, &nested);
break;
}
}
}
static void wiphy_dump_done(void *user)
{
const struct l_queue_entry *wiphy_entry;
for (wiphy_entry = l_queue_get_entries(wiphy_list); wiphy_entry;
wiphy_entry = wiphy_entry->next) {
struct wiphy *wiphy = wiphy_entry->data;
uint32_t bands;
l_info("Wiphy: %d, Name: %s", wiphy->id, wiphy->name);
l_info("Bands:");
bands = scan_freq_set_get_bands(wiphy->supported_freqs);
if (bands & SCAN_BAND_2_4_GHZ)
l_info("\t2.4 Ghz");
if (bands & SCAN_BAND_5_GHZ)
l_info("\t5.0 Ghz");
}
}
static void wiphy_config_notify(struct l_genl_msg *msg, void *user_data)
{
struct l_genl_attr attr;
@ -2284,7 +2365,8 @@ bool wiphy_init(struct l_genl_family *in)
l_error("Getting regulatory info failed");
msg = l_genl_msg_new(NL80211_CMD_GET_WIPHY);
if (!l_genl_family_dump(nl80211, msg, wiphy_dump_callback, NULL, NULL))
if (!l_genl_family_dump(nl80211, msg, wiphy_dump_callback,
NULL, wiphy_dump_done))
l_error("Getting all wiphy devices failed");
msg = l_genl_msg_new(NL80211_CMD_GET_INTERFACE);