*/
#define P2P_GO_FREQ_CHANGE_TIME 5
+/**
+ * Defines CSA parameters which are used when GO evacuates the no longer valid
+ * channel (and if the driver supports channel switch).
+ */
+#define P2P_GO_CSA_COUNT 7
+#define P2P_GO_CSA_BLOCK_TX 0
+
#ifndef P2P_MAX_CLIENT_IDLE
/*
* How many seconds to try to reconnect to the GO when connection in P2P client
int go);
static int wpas_p2p_join_start(struct wpa_supplicant *wpa_s, int freq,
const u8 *ssid, size_t ssid_len);
+static int wpas_p2p_setup_freqs(struct wpa_supplicant *wpa_s, int freq,
+ int *force_freq, int *pref_freq, int go,
+ unsigned int *pref_freq_list,
+ unsigned int *num_pref_freq);
static void wpas_p2p_join_scan_req(struct wpa_supplicant *wpa_s, int freq,
const u8 *ssid, size_t ssid_len);
static void wpas_p2p_join_scan(void *eloop_ctx, void *timeout_ctx);
}
+static unsigned int p2p_is_active_persistent_group(struct wpa_supplicant *wpa_s)
+{
+ return !wpa_s->p2p_mgmt && wpa_s->current_ssid &&
+ !wpa_s->current_ssid->disabled &&
+ wpa_s->current_ssid->p2p_group &&
+ wpa_s->current_ssid->p2p_persistent_group;
+}
+
+
+static unsigned int p2p_is_active_persistent_go(struct wpa_supplicant *wpa_s)
+{
+ return p2p_is_active_persistent_group(wpa_s) &&
+ wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO;
+}
+
+
/* Find an interface for a P2P group where we are the GO */
static struct wpa_supplicant *
wpas_p2p_get_go_group(struct wpa_supplicant *wpa_s)
{
struct wpa_supplicant *save = NULL;
- struct wpa_ssid *s;
if (!wpa_s)
return NULL;
for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
- for (s = wpa_s->conf->ssid; s; s = s->next) {
- if (s->disabled || !s->p2p_group ||
- s->mode != WPAS_MODE_P2P_GO)
- continue;
+ if (!p2p_is_active_persistent_go(wpa_s))
+ continue;
- /* Prefer a group with connected clients */
- if (p2p_get_group_num_members(wpa_s->p2p_group))
- return wpa_s;
- save = wpa_s;
- }
+ /* Prefer a group with connected clients */
+ if (p2p_get_group_num_members(wpa_s->p2p_group))
+ return wpa_s;
+ save = wpa_s;
}
/* No group with connected clients, so pick the one without (if any) */
}
-/* Find an active P2P group where we are the GO */
-static struct wpa_ssid * wpas_p2p_group_go_ssid(struct wpa_supplicant *wpa_s,
- u8 *bssid)
+static unsigned int p2p_is_active_persistent_cli(struct wpa_supplicant *wpa_s)
{
- struct wpa_ssid *s, *empty = NULL;
+ return p2p_is_active_persistent_group(wpa_s) &&
+ wpa_s->current_ssid->mode == WPAS_MODE_INFRA;
+}
- if (!wpa_s)
- return 0;
+/* Find an interface for a P2P group where we are the P2P Client */
+static struct wpa_supplicant *
+wpas_p2p_get_cli_group(struct wpa_supplicant *wpa_s)
+{
for (wpa_s = wpa_s->global->ifaces; wpa_s; wpa_s = wpa_s->next) {
- for (s = wpa_s->conf->ssid; s; s = s->next) {
- if (s->disabled || !s->p2p_group ||
- s->mode != WPAS_MODE_P2P_GO)
- continue;
-
- os_memcpy(bssid, wpa_s->own_addr, ETH_ALEN);
- if (p2p_get_group_num_members(wpa_s->p2p_group))
- return s;
- empty = s;
- }
+ if (p2p_is_active_persistent_cli(wpa_s))
+ return wpa_s;
}
- return empty;
+ return NULL;
}
}
-static u8 p2ps_group_capability(void *ctx, u8 incoming, u8 role)
+static u8 p2ps_group_capability(void *ctx, u8 incoming, u8 role,
+ unsigned int *force_freq,
+ unsigned int *pref_freq)
{
- struct wpa_supplicant *wpa_s = ctx, *tmp_wpa_s;
+ struct wpa_supplicant *wpa_s = ctx;
struct wpa_ssid *s;
u8 conncap = P2PS_SETUP_NONE;
unsigned int owned_members = 0;
- unsigned int owner = 0;
- unsigned int client = 0;
- struct wpa_supplicant *go_wpa_s;
+ struct wpa_supplicant *go_wpa_s, *cli_wpa_s;
struct wpa_ssid *persistent_go;
int p2p_no_group_iface;
+ unsigned int pref_freq_list[P2P_MAX_PREF_CHANNELS], size;
wpa_printf(MSG_DEBUG, "P2P: Conncap - in:%d role:%d", incoming, role);
+ if (force_freq)
+ *force_freq = 0;
+ if (pref_freq)
+ *pref_freq = 0;
+
+ size = P2P_MAX_PREF_CHANNELS;
+ if (force_freq && pref_freq &&
+ !wpas_p2p_setup_freqs(wpa_s, 0, (int *) force_freq,
+ (int *) pref_freq, 0, pref_freq_list, &size))
+ wpas_p2p_set_own_freq_preference(wpa_s,
+ *force_freq ? *force_freq :
+ *pref_freq);
+
/*
* For non-concurrent capable devices:
* If persistent_go, then no new.
* If client, then no GO.
*/
go_wpa_s = wpas_p2p_get_go_group(wpa_s);
+ if (go_wpa_s)
+ owned_members = p2p_get_group_num_members(go_wpa_s->p2p_group);
persistent_go = wpas_p2p_get_persistent_go(wpa_s);
p2p_no_group_iface = !wpas_p2p_create_iface(wpa_s);
+ cli_wpa_s = wpas_p2p_get_cli_group(wpa_s);
- wpa_printf(MSG_DEBUG, "P2P: GO(iface)=%p persistent(ssid)=%p",
- go_wpa_s, persistent_go);
-
- for (tmp_wpa_s = wpa_s->global->ifaces; tmp_wpa_s;
- tmp_wpa_s = tmp_wpa_s->next) {
- for (s = tmp_wpa_s->conf->ssid; s; s = s->next) {
- wpa_printf(MSG_DEBUG,
- "P2P: sup:%p ssid:%p disabled:%d p2p:%d mode:%d",
- tmp_wpa_s, s, s->disabled,
- s->p2p_group, s->mode);
- if (!s->disabled && s->p2p_group) {
- if (s->mode == WPAS_MODE_P2P_GO) {
- owned_members +=
- p2p_get_group_num_members(
- tmp_wpa_s->p2p_group);
- owner++;
- } else
- client++;
- }
- }
- }
+ wpa_printf(MSG_DEBUG,
+ "P2P: GO(iface)=%p members=%u CLI(iface)=%p persistent(ssid)=%p",
+ go_wpa_s, owned_members, cli_wpa_s, persistent_go);
/* If not concurrent, restrict our choices */
if (p2p_no_group_iface) {
wpa_printf(MSG_DEBUG, "P2P: p2p_no_group_iface");
- if (client)
+ if (cli_wpa_s)
return P2PS_SETUP_NONE;
if (go_wpa_s) {
/* If a required role has been specified, handle it here */
if (role && role != P2PS_SETUP_NEW) {
switch (incoming) {
+ case P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_NEW:
+ case P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_CLIENT:
+ /*
+ * Peer has an active GO, so if the role allows it and
+ * we do not have any active roles, become client.
+ */
+ if ((role & P2PS_SETUP_CLIENT) && !go_wpa_s &&
+ !cli_wpa_s)
+ return P2PS_SETUP_CLIENT;
+
+ /* fall through */
+
case P2PS_SETUP_NONE:
case P2PS_SETUP_NEW:
- case P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_CLIENT:
- case P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_NEW:
conncap = role;
goto grp_owner;
* Must be a complimentary role - cannot be a client to
* more than one peer.
*/
- if (incoming == role || client)
+ if (incoming == role || cli_wpa_s)
return P2PS_SETUP_NONE;
return P2PS_SETUP_CLIENT;
switch (incoming) {
case P2PS_SETUP_NONE:
case P2PS_SETUP_NEW:
- if (client)
+ if (cli_wpa_s)
conncap = P2PS_SETUP_GROUP_OWNER;
else if (!owned_members)
conncap = P2PS_SETUP_NEW;
break;
case P2PS_SETUP_GROUP_OWNER:
- if (!client)
+ if (!cli_wpa_s)
conncap = P2PS_SETUP_CLIENT;
break;
case P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_NEW:
case P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_CLIENT:
- if (client)
+ /*
+ * Peer has an active GO, so if the role allows it and
+ * we do not have any active roles, become client.
+ */
+ if ((role & P2PS_SETUP_CLIENT) && !go_wpa_s && !cli_wpa_s)
+ return P2PS_SETUP_CLIENT;
+
+ if (cli_wpa_s)
conncap = P2PS_SETUP_GROUP_OWNER;
else {
u8 r;
(!incoming && (conncap & P2PS_SETUP_NEW))) {
if (go_wpa_s && p2p_client_limit_reached(go_wpa_s->p2p_group))
conncap &= ~P2PS_SETUP_GROUP_OWNER;
- wpa_printf(MSG_DEBUG, "P2P: GOs:%d members:%d conncap:%d",
- owner, owned_members, conncap);
s = wpas_p2p_get_persistent_go(wpa_s);
-
- if (!s && !owner && p2p_no_group_iface) {
+ if (!s && !go_wpa_s && p2p_no_group_iface) {
p2p_set_intended_addr(wpa_s->global->p2p,
wpa_s->own_addr);
- } else if (!s && !owner) {
+ } else if (!s && !go_wpa_s) {
if (wpas_p2p_add_group_interface(wpa_s,
WPA_IF_P2P_GO) < 0) {
wpa_printf(MSG_ERROR,
};
+static void wpas_p2p_free_send_action_work(struct wpa_supplicant *wpa_s)
+{
+ struct send_action_work *awork = wpa_s->p2p_send_action_work->ctx;
+
+ wpa_printf(MSG_DEBUG,
+ "P2P: Free Action frame radio work @%p (freq=%u dst="
+ MACSTR " src=" MACSTR " bssid=" MACSTR " wait_time=%u)",
+ wpa_s->p2p_send_action_work, awork->freq,
+ MAC2STR(awork->dst), MAC2STR(awork->src),
+ MAC2STR(awork->bssid), awork->wait_time);
+ wpa_hexdump(MSG_DEBUG, "P2P: Freeing pending Action frame",
+ awork->buf, awork->len);
+ os_free(awork);
+ wpa_s->p2p_send_action_work->ctx = NULL;
+ radio_work_done(wpa_s->p2p_send_action_work);
+ wpa_s->p2p_send_action_work = NULL;
+}
+
+
static void wpas_p2p_send_action_work_timeout(void *eloop_ctx,
void *timeout_ctx)
{
return;
wpa_printf(MSG_DEBUG, "P2P: Send Action frame radio work timed out");
- os_free(wpa_s->p2p_send_action_work->ctx);
- radio_work_done(wpa_s->p2p_send_action_work);
- wpa_s->p2p_send_action_work = NULL;
+ wpas_p2p_free_send_action_work(wpa_s);
}
{
if (wpa_s->p2p_send_action_work) {
struct send_action_work *awork;
+
awork = wpa_s->p2p_send_action_work->ctx;
+ wpa_printf(MSG_DEBUG,
+ "P2P: Clear Action TX work @%p (wait_time=%u)",
+ wpa_s->p2p_send_action_work, awork->wait_time);
if (awork->wait_time == 0) {
- os_free(awork);
- radio_work_done(wpa_s->p2p_send_action_work);
- wpa_s->p2p_send_action_work = NULL;
+ wpas_p2p_free_send_action_work(wpa_s);
} else {
/*
* In theory, this should not be needed, but number of
}
+static int wpas_sta_check_ecsa(struct hostapd_data *hapd,
+ struct sta_info *sta, void *ctx)
+{
+ int *ecsa_support = ctx;
+
+ *ecsa_support &= sta->ecsa_supported;
+
+ return 0;
+}
+
+
+/* Check if all the peers support eCSA */
+static int wpas_p2p_go_clients_support_ecsa(struct wpa_supplicant *wpa_s)
+{
+ int ecsa_support = 1;
+
+ ap_for_each_sta(wpa_s->ap_iface->bss[0], wpas_sta_check_ecsa,
+ &ecsa_support);
+
+ return ecsa_support;
+}
+
+
/**
* Pick the best frequency to use from all the currently used frequencies.
*/
wpa_printf(MSG_DEBUG, "P2P: Invitation result - status=%d peer=" MACSTR,
status, MAC2STR(peer));
if (wpa_s->pending_invite_ssid_id == -1) {
+ struct wpa_supplicant *group_if =
+ wpa_s->global->p2p_invite_group;
+
if (status == P2P_SC_FAIL_UNKNOWN_GROUP)
wpas_remove_persistent_client(wpa_s, peer);
- return; /* Invitation to active group */
+
+ /*
+ * Invitation to an active group. If this is successful and we
+ * are the GO, set the client wait to postpone some concurrent
+ * operations and to allow provisioning and connection to happen
+ * more quickly.
+ */
+ if (status == P2P_SC_SUCCESS &&
+ group_if && group_if->current_ssid &&
+ group_if->current_ssid->mode == WPAS_MODE_P2P_GO)
+ os_get_reltime(&wpa_s->global->p2p_go_wait_client);
+ return;
}
if (status == P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE) {
static int wpas_get_go_info(void *ctx, u8 *intended_addr,
- u8 *ssid, size_t *ssid_len, int *group_iface)
+ u8 *ssid, size_t *ssid_len, int *group_iface,
+ unsigned int *freq)
{
struct wpa_supplicant *wpa_s = ctx;
+ struct wpa_supplicant *go;
struct wpa_ssid *s;
- u8 bssid[ETH_ALEN];
/*
* group_iface will be set to 1 only if a dedicated interface for P2P
* that the pending interface should be used.
*/
*group_iface = 0;
- s = wpas_p2p_group_go_ssid(wpa_s, bssid);
- if (!s) {
+
+ if (freq)
+ *freq = 0;
+
+ go = wpas_p2p_get_go_group(wpa_s);
+ if (!go) {
s = wpas_p2p_get_persistent_go(wpa_s);
*group_iface = wpas_p2p_create_iface(wpa_s);
if (s)
- os_memcpy(bssid, s->bssid, ETH_ALEN);
+ os_memcpy(intended_addr, s->bssid, ETH_ALEN);
else
return 0;
+ } else {
+ s = go->current_ssid;
+ os_memcpy(intended_addr, go->own_addr, ETH_ALEN);
+ if (freq)
+ *freq = go->assoc_freq;
}
- os_memcpy(intended_addr, bssid, ETH_ALEN);
os_memcpy(ssid, s->ssid, s->ssid_len);
*ssid_len = s->ssid_len;
const u8 *persist_ssid,
size_t persist_ssid_size, int response_done,
int prov_start, const char *session_info,
- const u8 *feat_cap, size_t feat_cap_len)
+ const u8 *feat_cap, size_t feat_cap_len,
+ unsigned int freq)
{
struct wpa_supplicant *wpa_s = ctx;
u8 mac[ETH_ALEN];
- struct wpa_ssid *persistent_go, *stale, *s;
+ struct wpa_ssid *persistent_go, *stale, *s = NULL;
int save_config = 0;
struct wpa_supplicant *go_wpa_s;
char feat_cap_str[256];
}
/* Clean up stale persistent groups with this device */
- s = wpas_p2p_get_persistent(wpa_s, dev, persist_ssid,
- persist_ssid_size);
+ if (persist_ssid && persist_ssid_size)
+ s = wpas_p2p_get_persistent(wpa_s, dev, persist_ssid,
+ persist_ssid_size);
if (persist_ssid && s && s->mode != WPAS_MODE_P2P_GO &&
is_zero_ether_addr(grp_mac)) {
go_ifname[0] = '\0';
if (!go_wpa_s) {
wpa_s->global->pending_p2ps_group = 1;
+ wpa_s->global->pending_p2ps_group_freq = freq;
if (!wpas_p2p_create_iface(wpa_s))
os_memcpy(go_ifname, wpa_s->ifname,
wpa_s, P2P_SC_FAIL_UNKNOWN_GROUP,
dev, adv_mac, ses_mac,
grp_mac, adv_id, ses_id, 0, 0,
- NULL, 0, 0, 0, NULL, NULL, 0);
+ NULL, 0, 0, 0, NULL, NULL, 0, 0);
return;
}
if (response_done && persistent_go) {
wpas_p2p_group_add_persistent(
wpa_s, persistent_go,
- 0, 0, 0, 0, 0, NULL,
+ 0, 0, freq, 0, 0, NULL,
persistent_go->mode ==
WPAS_MODE_P2P_GO ?
P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE :
0, 0);
} else if (response_done) {
- wpas_p2p_group_add(wpa_s, 1, 0, 0, 0);
+ wpas_p2p_group_add(wpa_s, 1, freq, 0, 0);
}
if (passwd_id == DEV_PW_P2PS_DEFAULT) {
{
struct wpa_supplicant *wpa_s = ctx;
struct wpa_ssid *persistent_go;
+ unsigned int freq;
if (!wpa_s->global->pending_p2ps_group)
return 0;
+ freq = wpa_s->global->pending_p2ps_group_freq;
+ wpa_s->global->pending_p2ps_group_freq = 0;
wpa_s->global->pending_p2ps_group = 0;
if (wpas_p2p_get_go_group(wpa_s))
persistent_go->mode == WPAS_MODE_P2P_GO ?
P2P_MAX_INITIAL_CONN_WAIT_GO_REINVOKE : 0, 0);
} else {
- wpas_p2p_group_add(wpa_s, 1, 0, 0, 0);
+ wpas_p2p_group_add(wpa_s, 1, freq, 0, 0);
}
return 1;
wpa_s->global->p2p_fail_on_wps_complete = 0;
wpa_s->global->pending_p2ps_group = 0;
+ wpa_s->global->pending_p2ps_group_freq = 0;
wpa_s->p2ps_method_config_any = 0;
if (go_intent < 0)
struct wpa_used_freq_data *freqs;
unsigned int cand;
unsigned int num, i;
+ int ignore_no_freqs = 0;
os_memset(params, 0, sizeof(*params));
params->role_go = 1;
params->ht40 = ht40;
params->vht = vht;
- if (wpa_s->p2p_group_common_freqs_num)
- wpa_printf(MSG_DEBUG, "P2P: %s called for an active GO",
- __func__);
-
freqs = os_calloc(wpa_s->num_multichan_concurrent,
sizeof(struct wpa_used_freq_data));
if (!freqs)
return -1;
- num = wpas_p2p_valid_oper_freqs(wpa_s, freqs,
- wpa_s->num_multichan_concurrent);
+ num = get_shared_radio_freqs_data(wpa_s, freqs,
+ wpa_s->num_multichan_concurrent);
+
+ if (wpa_s->current_ssid &&
+ wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO &&
+ wpa_s->wpa_state == WPA_COMPLETED) {
+ wpa_printf(MSG_DEBUG, "P2P: %s called for an active GO",
+ __func__);
+
+ /*
+ * If the frequency selection is done for an active P2P GO that
+ * is not sharing a frequency, allow to select a new frequency
+ * even if there are no unused frequencies as we are about to
+ * move the P2P GO so its frequency can be re-used.
+ */
+ for (i = 0; i < num; i++) {
+ if (freqs[i].freq == wpa_s->current_ssid->frequency &&
+ freqs[i].flags == 0) {
+ ignore_no_freqs = 1;
+ break;
+ }
+ }
+ }
/* try using the forced freq */
if (freq) {
}
}
- if (wpas_p2p_num_unused_channels(wpa_s) <= 0) {
+ if (!ignore_no_freqs &&
+ wpas_p2p_num_unused_channels(wpa_s) <= 0) {
wpa_printf(MSG_DEBUG,
"P2P: Cannot force GO on freq (%d MHz) as all the channels are in use",
freq);
}
}
- if (wpas_p2p_num_unused_channels(wpa_s) <= 0) {
+ if (!ignore_no_freqs &&
+ wpas_p2p_num_unused_channels(wpa_s) <= 0) {
wpa_printf(MSG_DEBUG,
"P2P: Cannot force GO on any of the channels we are already using");
goto fail;
u16 config_methods;
wpa_s->global->pending_p2ps_group = 0;
+ wpa_s->global->pending_p2ps_group_freq = 0;
wpa_s->p2p_fallback_to_go_neg = 0;
wpa_s->pending_pd_use = NORMAL_PD;
if (p2ps_prov && use == WPAS_P2P_PD_FOR_ASP) {
p2ps_prov->conncap = p2ps_group_capability(
- wpa_s, P2PS_SETUP_NONE, p2ps_prov->role);
+ wpa_s, P2PS_SETUP_NONE, p2ps_prov->role,
+ &p2ps_prov->force_freq, &p2ps_prov->pref_freq);
+
wpa_printf(MSG_DEBUG,
"P2P: %s conncap: %d - ASP parsed: %x %x %d %s",
__func__, p2ps_prov->conncap,
if (!offchannel_pending_action_tx(wpa_s))
return;
- wpas_p2p_action_tx_clear(wpa_s);
+ if (wpa_s->p2p_send_action_work)
+ wpas_p2p_free_send_action_work(wpa_s);
wpa_printf(MSG_DEBUG, "P2P: Drop pending Action TX due to new "
"operation request");
static int wpas_p2p_move_go_csa(struct wpa_supplicant *wpa_s)
{
+ struct hostapd_config *conf;
+ struct p2p_go_neg_results params;
+ struct csa_settings csa_settings;
+ struct wpa_ssid *current_ssid = wpa_s->current_ssid;
+ int old_freq = current_ssid->frequency;
+ int ret;
+
if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_AP_CSA)) {
wpa_dbg(wpa_s, MSG_DEBUG, "CSA is not enabled");
return -1;
}
- /* TODO: Add CSA support */
- wpa_dbg(wpa_s, MSG_DEBUG, "Moving GO with CSA is not implemented");
- return -1;
+ /*
+ * TODO: This function may not always work correctly. For example,
+ * when we have a running GO and a BSS on a DFS channel.
+ */
+ if (wpas_p2p_init_go_params(wpa_s, ¶ms, 0, 0, 0, NULL)) {
+ wpa_dbg(wpa_s, MSG_DEBUG,
+ "P2P CSA: Failed to select new frequency for GO");
+ return -1;
+ }
+
+ if (current_ssid->frequency == params.freq) {
+ wpa_dbg(wpa_s, MSG_DEBUG,
+ "P2P CSA: Selected same frequency - not moving GO");
+ return 0;
+ }
+
+ conf = hostapd_config_defaults();
+ if (!conf) {
+ wpa_dbg(wpa_s, MSG_DEBUG,
+ "P2P CSA: Failed to allocate default config");
+ return -1;
+ }
+
+ current_ssid->frequency = params.freq;
+ if (wpa_supplicant_conf_ap_ht(wpa_s, current_ssid, conf)) {
+ wpa_dbg(wpa_s, MSG_DEBUG,
+ "P2P CSA: Failed to create new GO config");
+ ret = -1;
+ goto out;
+ }
+
+ if (conf->hw_mode != wpa_s->ap_iface->current_mode->mode) {
+ wpa_dbg(wpa_s, MSG_DEBUG,
+ "P2P CSA: CSA to a different band is not supported");
+ ret = -1;
+ goto out;
+ }
+
+ os_memset(&csa_settings, 0, sizeof(csa_settings));
+ csa_settings.cs_count = P2P_GO_CSA_COUNT;
+ csa_settings.block_tx = P2P_GO_CSA_BLOCK_TX;
+ csa_settings.freq_params.freq = params.freq;
+ csa_settings.freq_params.sec_channel_offset = conf->secondary_channel;
+ csa_settings.freq_params.ht_enabled = conf->ieee80211n;
+ csa_settings.freq_params.bandwidth = conf->secondary_channel ? 40 : 20;
+
+ if (conf->ieee80211ac) {
+ int freq1 = 0, freq2 = 0;
+ u8 chan, opclass;
+
+ if (ieee80211_freq_to_channel_ext(params.freq,
+ conf->secondary_channel,
+ conf->vht_oper_chwidth,
+ &opclass, &chan) ==
+ NUM_HOSTAPD_MODES) {
+ wpa_printf(MSG_ERROR, "P2P CSA: Bad freq");
+ ret = -1;
+ goto out;
+ }
+
+ if (conf->vht_oper_centr_freq_seg0_idx)
+ freq1 = ieee80211_chan_to_freq(
+ NULL, opclass,
+ conf->vht_oper_centr_freq_seg0_idx);
+
+ if (conf->vht_oper_centr_freq_seg1_idx)
+ freq2 = ieee80211_chan_to_freq(
+ NULL, opclass,
+ conf->vht_oper_centr_freq_seg1_idx);
+
+ if (freq1 < 0 || freq2 < 0) {
+ wpa_dbg(wpa_s, MSG_DEBUG,
+ "P2P CSA: Selected invalid VHT center freqs");
+ ret = -1;
+ goto out;
+ }
+
+ csa_settings.freq_params.vht_enabled = conf->ieee80211ac;
+ csa_settings.freq_params.center_freq1 = freq1;
+ csa_settings.freq_params.center_freq2 = freq2;
+
+ switch (conf->vht_oper_chwidth) {
+ case VHT_CHANWIDTH_80MHZ:
+ case VHT_CHANWIDTH_80P80MHZ:
+ csa_settings.freq_params.bandwidth = 80;
+ break;
+ case VHT_CHANWIDTH_160MHZ:
+ csa_settings.freq_params.bandwidth = 160;
+ break;
+ }
+ }
+
+ ret = ap_switch_channel(wpa_s, &csa_settings);
+out:
+ current_ssid->frequency = old_freq;
+ hostapd_config_free(conf);
+ return ret;
}
wpas_p2p_go_update_common_freqs(wpa_s);
+ /* Do not move GO in the middle of a CSA */
+ if (hostapd_csa_in_progress(wpa_s->ap_iface)) {
+ wpa_printf(MSG_DEBUG,
+ "P2P: CSA is in progress - not moving GO");
+ return;
+ }
+
/*
* First, try a channel switch flow. If it is not supported or fails,
* take down the GO and bring it up again.
P2P_GO_FREQ_MOVE_SCM_PEER_SUPPORTS &&
wpas_p2p_go_is_peer_freq(wpa_s, freqs[i].freq)) {
policy_move = 1;
+ } else if ((wpa_s->conf->p2p_go_freq_change_policy ==
+ P2P_GO_FREQ_MOVE_SCM_ECSA) &&
+ wpas_p2p_go_is_peer_freq(wpa_s, freqs[i].freq)) {
+ if (!p2p_get_group_num_members(wpa_s->p2p_group)) {
+ policy_move = 1;
+ } else if ((wpa_s->drv_flags &
+ WPA_DRIVER_FLAGS_AP_CSA) &&
+ wpas_p2p_go_clients_support_ecsa(wpa_s)) {
+ u8 chan;
+
+ /*
+ * We do not support CSA between bands, so move
+ * GO only within the same band.
+ */
+ if (wpa_s->ap_iface->current_mode->mode ==
+ ieee80211_freq_to_chan(freqs[i].freq,
+ &chan))
+ policy_move = 1;
+ }
}
}
return;
}
+ /*
+ * Do not consider moving GO if it is in the middle of a CSA. When the
+ * CSA is finished this flow should be retriggered.
+ */
+ if (hostapd_csa_in_progress(wpa_s->ap_iface)) {
+ wpa_dbg(wpa_s, MSG_DEBUG,
+ "P2P: Not initiating a GO frequency change - CSA is in progress");
+ return;
+ }
+
if (invalid_freq && !wpas_p2p_disallowed_freq(wpa_s->global, freq))
timeout = P2P_GO_FREQ_CHANGE_TIME;
else
projects / mech_eap.git / blobdiff