u8 next_frag_id;
unsigned int wait_comeback:1;
unsigned int offchannel_tx_started:1;
+ unsigned int retry:1;
int freq;
u16 status_code;
struct wpabuf *req;
static void gas_query_tx_comeback_timeout(void *eloop_data, void *user_ctx);
static void gas_query_timeout(void *eloop_data, void *user_ctx);
+static void gas_query_rx_comeback_timeout(void *eloop_data, void *user_ctx);
+static void gas_query_tx_initial_req(struct gas_query *gas,
+ struct gas_query_pending *query);
+static int gas_query_new_dialog_token(struct gas_query *gas, const u8 *dst);
static int ms_from_time(struct os_reltime *last)
offchannel_send_action_done(gas->wpa_s);
eloop_cancel_timeout(gas_query_tx_comeback_timeout, gas, query);
eloop_cancel_timeout(gas_query_timeout, gas, query);
+ eloop_cancel_timeout(gas_query_rx_comeback_timeout, gas, query);
dl_list_del(&query->list);
query->cb(query->ctx, query->addr, query->dialog_token, result,
query->adv_proto, query->resp, query->status_code);
eloop_cancel_timeout(gas_query_timeout, gas, query);
eloop_register_timeout(GAS_QUERY_TIMEOUT_PERIOD, 0,
gas_query_timeout, gas, query);
+ if (query->wait_comeback && !query->retry) {
+ eloop_cancel_timeout(gas_query_rx_comeback_timeout,
+ gas, query);
+ eloop_register_timeout(
+ 0, (GAS_QUERY_WAIT_TIME_COMEBACK + 10) * 1000,
+ gas_query_rx_comeback_timeout, gas, query);
+ }
}
if (result == OFFCHANNEL_SEND_ACTION_FAILED) {
eloop_cancel_timeout(gas_query_timeout, gas, query);
return;
}
- wait_time = !query->offchannel_tx_started ?
+ wait_time = (query->retry || !query->offchannel_tx_started) ?
GAS_QUERY_WAIT_TIME_INITIAL : GAS_QUERY_WAIT_TIME_COMEBACK;
if (gas_query_tx(gas, query, req, wait_time) < 0) {
}
+static void gas_query_rx_comeback_timeout(void *eloop_data, void *user_ctx)
+{
+ struct gas_query *gas = eloop_data;
+ struct gas_query_pending *query = user_ctx;
+ int dialog_token;
+
+ wpa_printf(MSG_DEBUG,
+ "GAS: No response to comeback request received (retry=%u)",
+ query->retry);
+ if (gas->current != query || query->retry)
+ return;
+ dialog_token = gas_query_new_dialog_token(gas, query->addr);
+ if (dialog_token < 0)
+ return;
+ wpa_printf(MSG_DEBUG,
+ "GAS: Retry GAS query due to comeback response timeout");
+ query->retry = 1;
+ query->dialog_token = dialog_token;
+ *(wpabuf_mhead_u8(query->req) + 2) = dialog_token;
+ query->wait_comeback = 0;
+ query->next_frag_id = 0;
+ wpabuf_free(query->adv_proto);
+ query->adv_proto = NULL;
+ eloop_cancel_timeout(gas_query_tx_comeback_timeout, gas, query);
+ eloop_cancel_timeout(gas_query_timeout, gas, query);
+ gas_query_tx_initial_req(gas, query);
+}
+
+
static void gas_query_tx_comeback_timeout(void *eloop_data, void *user_ctx)
{
struct gas_query *gas = eloop_data;
"comeback_delay=%u)",
MAC2STR(query->addr), query->dialog_token, frag_id,
more_frags, comeback_delay);
+ eloop_cancel_timeout(gas_query_rx_comeback_timeout, gas, query);
if ((size_t) 2 + adv_proto[1] != wpabuf_len(query->adv_proto) ||
os_memcmp(adv_proto, wpabuf_head(query->adv_proto),
}
gas->work = work;
+ gas_query_tx_initial_req(gas, query);
+}
+
+static void gas_query_tx_initial_req(struct gas_query *gas,
+ struct gas_query_pending *query)
+{
if (gas_query_tx(gas, query, query->req,
GAS_QUERY_WAIT_TIME_INITIAL) < 0) {
wpa_printf(MSG_DEBUG, "GAS: Failed to send Action frame to "
query->dialog_token);
eloop_register_timeout(GAS_QUERY_TIMEOUT_PERIOD, 0,
gas_query_timeout, gas, query);
+}
+
+static int gas_query_new_dialog_token(struct gas_query *gas, const u8 *dst)
+{
+ static int next_start = 0;
+ int dialog_token;
+
+ for (dialog_token = 0; dialog_token < 256; dialog_token++) {
+ if (gas_query_dialog_token_available(
+ gas, dst, (next_start + dialog_token) % 256))
+ break;
+ }
+ if (dialog_token == 256)
+ return -1; /* Too many pending queries */
+ dialog_token = (next_start + dialog_token) % 256;
+ next_start = (dialog_token + 1) % 256;
+ return dialog_token;
}
{
struct gas_query_pending *query;
int dialog_token;
- static int next_start = 0;
if (wpabuf_len(req) < 3)
return -1;
- for (dialog_token = 0; dialog_token < 256; dialog_token++) {
- if (gas_query_dialog_token_available(
- gas, dst, (next_start + dialog_token) % 256))
- break;
- }
- if (dialog_token == 256)
- return -1; /* Too many pending queries */
- dialog_token = (next_start + dialog_token) % 256;
- next_start = (dialog_token + 1) % 256;
+ dialog_token = gas_query_new_dialog_token(gas, dst);
+ if (dialog_token < 0)
+ return -1;
query = os_zalloc(sizeof(*query));
if (query == NULL)