os_free(p2p->cfg->serial_number);
os_free(p2p->cfg->pref_chan);
os_free(p2p->groups);
+ os_free(p2p->p2ps_prov);
wpabuf_free(p2p->sd_resp);
os_free(p2p->after_scan_tx);
p2p_remove_wps_vendor_extensions(p2p);
unsigned int peer_config_timeout;
};
+struct p2ps_provision {
+ /**
+ * status - Remote returned provisioning status code
+ */
+ int status;
+
+ /**
+ * adv_id - P2PS Advertisement ID
+ */
+ u32 adv_id;
+
+ /**
+ * session_id - P2PS Session ID
+ */
+ u32 session_id;
+
+ /**
+ * method - WPS Method (to be) used to establish session
+ */
+ u16 method;
+
+ /**
+ * conncap - Connection Capabilities negotiated between P2P peers
+ */
+ u8 conncap;
+
+ /**
+ * role - Info about the roles to be used for this connection
+ */
+ u8 role;
+
+ /**
+ * session_mac - MAC address of the peer that started the session
+ */
+ u8 session_mac[ETH_ALEN];
+
+ /**
+ * adv_mac - MAC address of the peer advertised the service
+ */
+ u8 adv_mac[ETH_ALEN];
+
+ /**
+ * info - Vendor defined extra Provisioning information
+ */
+ char info[0];
+};
+
struct p2ps_advertisement {
struct p2ps_advertisement *next;
* or 0 if not.
*/
int (*is_p2p_in_progress)(void *ctx);
+
+ /**
+ * Determine if we have a persistent group we share with remote peer
+ * @ctx: Callback context from cb_ctx
+ * @addr: Peer device address to search for
+ * @ssid: Persistent group SSID or %NULL if any
+ * @ssid_len: Length of @ssid
+ * @go_dev_addr: Buffer for returning intended GO P2P Device Address
+ * @ret_ssid: Buffer for returning group SSID
+ * @ret_ssid_len: Buffer for returning length of @ssid
+ * Returns: 1 if a matching persistent group was found, 0 otherwise
+ */
+ int (*get_persistent_group)(void *ctx, const u8 *addr, const u8 *ssid,
+ size_t ssid_len, u8 *go_dev_addr,
+ u8 *ret_ssid, size_t *ret_ssid_len);
+
+ /**
+ * Get information about a possible local GO role
+ * @ctx: Callback context from cb_ctx
+ * @intended_addr: Buffer for returning intended GO interface address
+ * @ssid: Buffer for returning group SSID
+ * @ssid_len: Buffer for returning length of @ssid
+ * @group_iface: Buffer for returning whether a separate group interface
+ * would be used
+ * Returns: 1 if GO info found, 0 otherwise
+ *
+ * This is used to compose New Group settings (SSID, and intended
+ * address) during P2PS provisioning if results of provisioning *might*
+ * result in our being an autonomous GO.
+ */
+ int (*get_go_info)(void *ctx, u8 *intended_addr,
+ u8 *ssid, size_t *ssid_len, int *group_iface);
};
* p2p_prov_disc_req - Send Provision Discovery Request
* @p2p: P2P module context from p2p_init()
* @peer_addr: MAC address of the peer P2P client
+ * @p2ps_prov: Provisioning info for P2PS
* @config_methods: WPS Config Methods value (only one bit set)
* @join: Whether this is used by a client joining an active group
* @force_freq: Forced TX frequency for the frame (mainly for the join case)
* indicated with the p2p_config::prov_disc_resp() callback.
*/
int p2p_prov_disc_req(struct p2p_data *p2p, const u8 *peer_addr,
- u16 config_methods, int join, int force_freq,
+ struct p2ps_provision *p2ps_prov, u16 config_methods,
+ int join, int force_freq,
int user_initiated_pd);
/**
else
return -1;
return p2p_prov_disc_req(p2p, dev->info.p2p_device_addr,
- config_method, 0, 0, 1);
+ NULL, config_method, 0, 0, 1);
}
freq = dev->listen_freq > 0 ? dev->listen_freq : dev->oper_freq;
}
-static int p2p_go_select_channel(struct p2p_data *p2p, struct p2p_device *dev,
- u8 *status)
+int p2p_go_select_channel(struct p2p_data *p2p, struct p2p_device *dev,
+ u8 *status)
{
struct p2p_channels tmp, intersection;
/* ASP Support */
struct p2ps_advertisement *p2ps_adv_list;
+ struct p2ps_provision *p2ps_prov;
u8 wild_card_hash[P2PS_HASH_LEN];
u8 query_hash[P2P_MAX_QUERY_HASH * P2PS_HASH_LEN];
u8 query_count;
unsigned int force_freq, unsigned int pref_freq,
int go);
void p2p_go_neg_wait_timeout(void *eloop_ctx, void *timeout_ctx);
+int p2p_go_select_channel(struct p2p_data *p2p, struct p2p_device *dev,
+ u8 *status);
void p2p_dbg(struct p2p_data *p2p, const char *fmt, ...)
PRINTF_FORMAT(2, 3);
void p2p_info(struct p2p_data *p2p, const char *fmt, ...)
}
+static void p2ps_add_new_group_info(struct p2p_data *p2p, struct wpabuf *buf)
+{
+ int found;
+ u8 intended_addr[ETH_ALEN];
+ u8 ssid[32];
+ size_t ssid_len;
+ int group_iface;
+
+ if (!p2p->cfg->get_go_info)
+ return;
+
+ found = p2p->cfg->get_go_info(
+ p2p->cfg->cb_ctx, intended_addr, ssid,
+ &ssid_len, &group_iface);
+ if (found) {
+ p2p_buf_add_group_id(buf, p2p->cfg->dev_addr,
+ ssid, ssid_len);
+ p2p_buf_add_intended_addr(buf, intended_addr);
+ } else {
+ if (!p2p->ssid_set) {
+ p2p_build_ssid(p2p, p2p->ssid, &p2p->ssid_len);
+ p2p->ssid_set = 1;
+ }
+
+ /* Add pre-composed P2P Group ID */
+ p2p_buf_add_group_id(buf, p2p->cfg->dev_addr,
+ p2p->ssid, p2p->ssid_len);
+
+ if (group_iface)
+ p2p_buf_add_intended_addr(
+ buf, p2p->intended_addr);
+ else
+ p2p_buf_add_intended_addr(
+ buf, p2p->cfg->dev_addr);
+ }
+}
+
+
+static void p2ps_add_pd_req_attrs(struct p2p_data *p2p, struct p2p_device *dev,
+ struct wpabuf *buf, u16 config_methods)
+{
+ struct p2ps_provision *prov = p2p->p2ps_prov;
+ u8 feat_cap_mask[] = { 1, 0 };
+ int shared_group = 0;
+ u8 ssid[32];
+ size_t ssid_len;
+ u8 go_dev_addr[ETH_ALEN];
+
+ /* If we might be explicite group owner, add GO details */
+ if (prov->conncap & (P2PS_SETUP_GROUP_OWNER |
+ P2PS_SETUP_NEW))
+ p2ps_add_new_group_info(p2p, buf);
+
+ if (prov->status >= 0)
+ p2p_buf_add_status(buf, (u8) prov->status);
+ else
+ prov->method = config_methods;
+
+ if (p2p->cfg->get_persistent_group) {
+ shared_group = p2p->cfg->get_persistent_group(
+ p2p->cfg->cb_ctx, dev->info.p2p_device_addr, NULL, 0,
+ go_dev_addr, ssid, &ssid_len);
+ }
+
+ /* Add Operating Channel if conncap includes GO */
+ if (shared_group ||
+ (prov->conncap & (P2PS_SETUP_GROUP_OWNER |
+ P2PS_SETUP_NEW))) {
+ u8 tmp;
+
+ p2p_go_select_channel(p2p, dev, &tmp);
+
+ if (p2p->op_reg_class && p2p->op_channel)
+ p2p_buf_add_operating_channel(buf, p2p->cfg->country,
+ p2p->op_reg_class,
+ p2p->op_channel);
+ else
+ p2p_buf_add_operating_channel(buf, p2p->cfg->country,
+ p2p->cfg->op_reg_class,
+ p2p->cfg->op_channel);
+ }
+
+ p2p_buf_add_channel_list(buf, p2p->cfg->country, &p2p->cfg->channels);
+
+ if (prov->info[0])
+ p2p_buf_add_session_info(buf, prov->info);
+
+ p2p_buf_add_connection_capability(buf, prov->conncap);
+
+ p2p_buf_add_advertisement_id(buf, prov->adv_id, prov->adv_mac);
+
+ if (shared_group || prov->conncap == P2PS_SETUP_NEW ||
+ prov->conncap ==
+ (P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_NEW) ||
+ prov->conncap ==
+ (P2PS_SETUP_GROUP_OWNER | P2PS_SETUP_CLIENT)) {
+ /* Add Config Timeout */
+ p2p_buf_add_config_timeout(buf, p2p->go_timeout,
+ p2p->client_timeout);
+ }
+
+ p2p_buf_add_listen_channel(buf, p2p->cfg->country, p2p->cfg->reg_class,
+ p2p->cfg->channel);
+
+ p2p_buf_add_session_id(buf, prov->session_id, prov->session_mac);
+
+ p2p_buf_add_feature_capability(buf, sizeof(feat_cap_mask),
+ feat_cap_mask);
+
+ if (shared_group)
+ p2p_buf_add_persistent_group_info(buf, go_dev_addr,
+ ssid, ssid_len);
+}
+
+
static struct wpabuf * p2p_build_prov_disc_req(struct p2p_data *p2p,
- u8 dialog_token,
- u16 config_methods,
- struct p2p_device *go)
+ struct p2p_device *dev,
+ int join)
{
struct wpabuf *buf;
u8 *len;
size_t extra = 0;
+ u8 dialog_token = dev->dialog_token;
+ u16 config_methods = dev->req_config_methods;
+ struct p2p_device *go = join ? dev : NULL;
#ifdef CONFIG_WIFI_DISPLAY
if (p2p->wfd_ie_prov_disc_req)
if (p2p->vendor_elem && p2p->vendor_elem[VENDOR_ELEM_P2P_PD_REQ])
extra += wpabuf_len(p2p->vendor_elem[VENDOR_ELEM_P2P_PD_REQ]);
+ if (p2p->p2ps_prov)
+ extra += os_strlen(p2p->p2ps_prov->info) + 1 +
+ sizeof(struct p2ps_provision);
+
buf = wpabuf_alloc(1000 + extra);
if (buf == NULL)
return NULL;
p2p_buf_add_capability(buf, p2p->dev_capab &
~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY, 0);
p2p_buf_add_device_info(buf, p2p, NULL);
- if (go) {
+ if (p2p->p2ps_prov) {
+ p2ps_add_pd_req_attrs(p2p, dev, buf, config_methods);
+ } else if (go) {
p2p_buf_add_group_id(buf, go->info.p2p_device_addr,
go->oper_ssid, go->oper_ssid_len);
}
/* TODO: use device discoverability request through GO */
}
- req = p2p_build_prov_disc_req(p2p, dev->dialog_token,
- dev->req_config_methods,
- join ? dev : NULL);
+ if (p2p->p2ps_prov) {
+ if (p2p->p2ps_prov->status == P2P_SC_SUCCESS_DEFERRED) {
+ if (p2p->p2ps_prov->method == WPS_CONFIG_DISPLAY)
+ dev->req_config_methods = WPS_CONFIG_KEYPAD;
+ else if (p2p->p2ps_prov->method == WPS_CONFIG_KEYPAD)
+ dev->req_config_methods = WPS_CONFIG_DISPLAY;
+ else
+ dev->req_config_methods = WPS_CONFIG_P2PS;
+ } else {
+ /* Order of preference, based on peer's capabilities */
+ if (p2p->p2ps_prov->method)
+ dev->req_config_methods =
+ p2p->p2ps_prov->method;
+ else if (dev->info.config_methods & WPS_CONFIG_P2PS)
+ dev->req_config_methods = WPS_CONFIG_P2PS;
+ else if (dev->info.config_methods & WPS_CONFIG_DISPLAY)
+ dev->req_config_methods = WPS_CONFIG_DISPLAY;
+ else
+ dev->req_config_methods = WPS_CONFIG_KEYPAD;
+ }
+ p2p_dbg(p2p,
+ "Building PD Request based on P2PS config method 0x%x status %d --> req_config_methods 0x%x",
+ p2p->p2ps_prov->method, p2p->p2ps_prov->status,
+ dev->req_config_methods);
+ }
+
+ req = p2p_build_prov_disc_req(p2p, dev, join);
if (req == NULL)
return -1;
int p2p_prov_disc_req(struct p2p_data *p2p, const u8 *peer_addr,
+ struct p2ps_provision *p2ps_prov,
u16 config_methods, int join, int force_freq,
int user_initiated_pd)
{
if (dev == NULL || (dev->flags & P2P_DEV_PROBE_REQ_ONLY)) {
p2p_dbg(p2p, "Provision Discovery Request destination " MACSTR
" not yet known", MAC2STR(peer_addr));
+ os_free(p2ps_prov);
return -1;
}
p2p_dbg(p2p, "Provision Discovery Request with " MACSTR
" (config methods 0x%x)",
MAC2STR(peer_addr), config_methods);
- if (config_methods == 0)
+ if (config_methods == 0 && !p2ps_prov) {
+ os_free(p2ps_prov);
return -1;
+ }
+
+ if (p2ps_prov && p2ps_prov->status == P2P_SC_SUCCESS_DEFERRED &&
+ p2p->p2ps_prov) {
+ /* Use cached method from deferred provisioning */
+ p2ps_prov->method = p2p->p2ps_prov->method;
+ }
/* Reset provisioning info */
dev->wps_prov_info = 0;
+ os_free(p2p->p2ps_prov);
+ p2p->p2ps_prov = p2ps_prov;
dev->req_config_methods = config_methods;
if (join)
}
+/* 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)
+{
+ struct wpa_ssid *s, *empty = NULL;
+
+ if (!wpa_s)
+ return 0;
+
+ 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;
+ }
+ }
+
+ return empty;
+}
+
+
+/* Find a persistent group where we are the GO */
+static struct wpa_ssid *
+wpas_p2p_get_persistent_go(struct wpa_supplicant *wpa_s)
+{
+ struct wpa_ssid *s;
+
+ for (s = wpa_s->conf->ssid; s; s = s->next) {
+ if (s->disabled == 2 && s->mode == WPAS_MODE_P2P_GO)
+ return s;
+ }
+
+ return NULL;
+}
+
+
static int wpas_p2p_group_delete(struct wpa_supplicant *wpa_s,
enum p2p_group_removal_reason removal_reason)
{
}
+static int wpas_get_persistent_group(void *ctx, const u8 *addr, const u8 *ssid,
+ size_t ssid_len, u8 *go_dev_addr,
+ u8 *ret_ssid, size_t *ret_ssid_len)
+{
+ struct wpa_supplicant *wpa_s = ctx;
+ struct wpa_ssid *s;
+
+ s = wpas_p2p_get_persistent(wpa_s, addr, ssid, ssid_len);
+ if (s) {
+ os_memcpy(ret_ssid, s->ssid, s->ssid_len);
+ *ret_ssid_len = s->ssid_len;
+ os_memcpy(go_dev_addr, s->bssid, ETH_ALEN);
+ return 1;
+ }
+
+ return 0;
+}
+
+
+static int wpas_get_go_info(void *ctx, u8 *intended_addr,
+ u8 *ssid, size_t *ssid_len, int *group_iface)
+{
+ struct wpa_supplicant *wpa_s = ctx;
+ struct wpa_ssid *s;
+ u8 bssid[ETH_ALEN];
+
+ s = wpas_p2p_group_go_ssid(wpa_s, bssid);
+ if (!s) {
+ s = wpas_p2p_get_persistent_go(wpa_s);
+ if (s)
+ os_memcpy(bssid, s->bssid, ETH_ALEN);
+ }
+
+ *group_iface = wpas_p2p_create_iface(wpa_s);
+ if (!s)
+ return 0;
+
+ os_memcpy(intended_addr, bssid, ETH_ALEN);
+ os_memcpy(ssid, s->ssid, s->ssid_len);
+ *ssid_len = s->ssid_len;
+
+ return 1;
+}
+
+
static int _wpas_p2p_in_progress(void *ctx)
{
struct wpa_supplicant *wpa_s = ctx;
p2p.presence_resp = wpas_presence_resp;
p2p.is_concurrent_session_active = wpas_is_concurrent_session_active;
p2p.is_p2p_in_progress = _wpas_p2p_in_progress;
+ p2p.get_persistent_group = wpas_get_persistent_group;
+ p2p.get_go_info = wpas_get_go_info;
os_memcpy(wpa_s->global->p2p_dev_addr, wpa_s->own_addr, ETH_ALEN);
os_memcpy(p2p.dev_addr, wpa_s->global->p2p_dev_addr, ETH_ALEN);
wpa_printf(MSG_DEBUG, "P2P: Auto PD with " MACSTR " join=%d",
MAC2STR(wpa_s->pending_join_dev_addr), join);
if (p2p_prov_disc_req(wpa_s->global->p2p,
- wpa_s->pending_join_dev_addr,
+ wpa_s->pending_join_dev_addr, NULL,
wpa_s->pending_pd_config_methods, join,
0, wpa_s->user_initiated_pd) < 0) {
wpa_s->p2p_auto_pd = 0;
}
if (p2p_prov_disc_req(wpa_s->global->p2p,
- wpa_s->pending_join_dev_addr, method, 1,
+ wpa_s->pending_join_dev_addr,
+ NULL, method, 1,
freq, wpa_s->user_initiated_pd) < 0) {
wpa_printf(MSG_DEBUG, "P2P: Failed to send Provision "
"Discovery Request before joining an "
if (wpa_s->global->p2p == NULL || wpa_s->global->p2p_disabled)
return -1;
- return p2p_prov_disc_req(wpa_s->global->p2p, peer_addr,
+ return p2p_prov_disc_req(wpa_s->global->p2p, peer_addr, NULL,
config_methods, use == WPAS_P2P_PD_FOR_JOIN,
0, 1);
}
projects / thirdparty / hostap.git / commitdiff
