diff --git a/src/p2p/p2p.h b/src/p2p/p2p.h index 67b8bdb69..20c6429d1 100644 --- a/src/p2p/p2p.h +++ b/src/p2p/p2p.h @@ -955,18 +955,21 @@ struct p2p_config { /** * Determine if we have a persistent group we share with remote peer + * and allocate interface for this group if needed * @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 + * @go_dev_addr: Buffer for returning GO P2P Device Address * @ret_ssid: Buffer for returning group SSID * @ret_ssid_len: Buffer for returning length of @ssid + * @intended_iface_addr: Buffer for returning intended iface address * 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); + u8 *ret_ssid, size_t *ret_ssid_len, + u8 *intended_iface_addr); /** * Get information about a possible local GO role diff --git a/src/p2p/p2p_pd.c b/src/p2p/p2p_pd.c index d17921c37..33c65dc00 100644 --- a/src/p2p/p2p_pd.c +++ b/src/p2p/p2p_pd.c @@ -87,6 +87,7 @@ static void p2ps_add_pd_req_attrs(struct p2p_data *p2p, struct p2p_device *dev, u8 ssid[SSID_MAX_LEN]; size_t ssid_len; u8 go_dev_addr[ETH_ALEN]; + u8 intended_addr[ETH_ALEN]; /* If we might be explicite group owner, add GO details */ if (prov->conncap & (P2PS_SETUP_GROUP_OWNER | @@ -101,7 +102,7 @@ static void p2ps_add_pd_req_attrs(struct p2p_data *p2p, struct p2p_device *dev, 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); + go_dev_addr, ssid, &ssid_len, intended_addr); } /* Add Operating Channel if conncap includes GO */ @@ -149,9 +150,15 @@ static void p2ps_add_pd_req_attrs(struct p2p_data *p2p, struct p2p_device *dev, p2p_buf_add_feature_capability(buf, sizeof(feat_cap_mask), feat_cap_mask); - if (shared_group) + if (shared_group) { p2p_buf_add_persistent_group_info(buf, go_dev_addr, ssid, ssid_len); + /* Add intended interface address if it is not added yet */ + if ((prov->conncap == P2PS_SETUP_NONE || + prov->conncap == P2PS_SETUP_CLIENT) && + !is_zero_ether_addr(intended_addr)) + p2p_buf_add_intended_addr(buf, intended_addr); + } } @@ -296,15 +303,20 @@ static struct wpabuf * p2p_build_prov_disc_resp(struct p2p_data *p2p, u8 ssid[SSID_MAX_LEN]; size_t ssid_len; u8 go_dev_addr[ETH_ALEN]; + u8 intended_addr[ETH_ALEN]; persist = p2p->cfg->get_persistent_group( p2p->cfg->cb_ctx, dev->info.p2p_device_addr, persist_ssid, persist_ssid_len, go_dev_addr, - ssid, &ssid_len); - if (persist) + ssid, &ssid_len, intended_addr); + if (persist) { p2p_buf_add_persistent_group_info( buf, go_dev_addr, ssid, ssid_len); + if (!is_zero_ether_addr(intended_addr)) + p2p_buf_add_intended_addr( + buf, intended_addr); + } } if (!persist && (prov->conncap & P2PS_SETUP_GROUP_OWNER)) diff --git a/wpa_supplicant/p2p_supplicant.c b/wpa_supplicant/p2p_supplicant.c index c44ebfe70..220f2d7ac 100644 --- a/wpa_supplicant/p2p_supplicant.c +++ b/wpa_supplicant/p2p_supplicant.c @@ -3508,7 +3508,8 @@ static void wpas_presence_resp(void *ctx, const u8 *src, u8 status, 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) + u8 *ret_ssid, size_t *ret_ssid_len, + u8 *intended_iface_addr) { struct wpa_supplicant *wpa_s = ctx; struct wpa_ssid *s; @@ -3518,6 +3519,19 @@ static int wpas_get_persistent_group(void *ctx, const u8 *addr, const u8 *ssid, os_memcpy(ret_ssid, s->ssid, s->ssid_len); *ret_ssid_len = s->ssid_len; os_memcpy(go_dev_addr, s->bssid, ETH_ALEN); + + if (s->mode != WPAS_MODE_P2P_GO) { + os_memset(intended_iface_addr, 0, ETH_ALEN); + } else if (wpas_p2p_create_iface(wpa_s)) { + if (wpas_p2p_add_group_interface(wpa_s, WPA_IF_P2P_GO)) + return 0; + + os_memcpy(intended_iface_addr, + wpa_s->pending_interface_addr, ETH_ALEN); + } else { + os_memcpy(intended_iface_addr, wpa_s->own_addr, + ETH_ALEN); + } return 1; }