* Wi-Fi Direct - P2P Invitation procedure
* Copyright (c) 2010, Atheros Communications
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * Alternatively, this software may be distributed under the terms of BSD
- * license.
- *
- * See README and COPYING for more details.
+ * This software may be distributed under the terms of the BSD license.
+ * See README for more details.
*/
#include "includes.h"
#include "common.h"
#include "common/ieee802_11_defs.h"
+#include "common/wpa_ctrl.h"
#include "p2p_i.h"
#include "p2p.h"
static struct wpabuf * p2p_build_invitation_req(struct p2p_data *p2p,
struct p2p_device *peer,
- const u8 *go_dev_addr)
+ const u8 *go_dev_addr,
+ int dev_pw_id)
{
struct wpabuf *buf;
u8 *len;
const u8 *dev_addr;
+ size_t extra = 0;
+
+#ifdef CONFIG_WIFI_DISPLAY
+ struct wpabuf *wfd_ie = p2p->wfd_ie_invitation;
+ if (wfd_ie && p2p->inv_role == P2P_INVITE_ROLE_ACTIVE_GO) {
+ size_t i;
+ for (i = 0; i < p2p->num_groups; i++) {
+ struct p2p_group *g = p2p->groups[i];
+ struct wpabuf *ie;
+ if (os_memcmp(p2p_group_get_interface_addr(g),
+ p2p->inv_bssid, ETH_ALEN) != 0)
+ continue;
+ ie = p2p_group_get_wfd_ie(g);
+ if (ie) {
+ wfd_ie = ie;
+ break;
+ }
+ }
+ }
+ if (wfd_ie)
+ extra = wpabuf_len(wfd_ie);
+#endif /* CONFIG_WIFI_DISPLAY */
+
+ if (p2p->vendor_elem && p2p->vendor_elem[VENDOR_ELEM_P2P_INV_REQ])
+ extra += wpabuf_len(p2p->vendor_elem[VENDOR_ELEM_P2P_INV_REQ]);
- buf = wpabuf_alloc(1000);
+ buf = wpabuf_alloc(1000 + extra);
if (buf == NULL)
return NULL;
if (p2p->inv_role == P2P_INVITE_ROLE_ACTIVE_GO || !p2p->inv_persistent)
p2p_buf_add_config_timeout(buf, 0, 0);
else
- p2p_buf_add_config_timeout(buf, 100, 20);
+ p2p_buf_add_config_timeout(buf, p2p->go_timeout,
+ p2p->client_timeout);
p2p_buf_add_invitation_flags(buf, p2p->inv_persistent ?
P2P_INVITATION_FLAGS_TYPE : 0);
- p2p_buf_add_operating_channel(buf, p2p->cfg->country,
- p2p->op_reg_class, p2p->op_channel);
+ if (p2p->inv_role != P2P_INVITE_ROLE_CLIENT ||
+ !(peer->flags & P2P_DEV_NO_PREF_CHAN))
+ p2p_buf_add_operating_channel(buf, p2p->cfg->country,
+ p2p->op_reg_class,
+ p2p->op_channel);
if (p2p->inv_bssid_set)
p2p_buf_add_group_bssid(buf, p2p->inv_bssid);
p2p_buf_add_channel_list(buf, p2p->cfg->country, &p2p->channels);
if (go_dev_addr)
dev_addr = go_dev_addr;
else if (p2p->inv_role == P2P_INVITE_ROLE_CLIENT)
- dev_addr = peer->p2p_device_addr;
+ dev_addr = peer->info.p2p_device_addr;
else
dev_addr = p2p->cfg->dev_addr;
p2p_buf_add_group_id(buf, dev_addr, p2p->inv_ssid, p2p->inv_ssid_len);
p2p_buf_add_device_info(buf, p2p, peer);
p2p_buf_update_ie_hdr(buf, len);
+ p2p_buf_add_pref_channel_list(buf, p2p->pref_freq_list,
+ p2p->num_pref_freq);
+
+#ifdef CONFIG_WIFI_DISPLAY
+ if (wfd_ie)
+ wpabuf_put_buf(buf, wfd_ie);
+#endif /* CONFIG_WIFI_DISPLAY */
+
+ if (p2p->vendor_elem && p2p->vendor_elem[VENDOR_ELEM_P2P_INV_REQ])
+ wpabuf_put_buf(buf, p2p->vendor_elem[VENDOR_ELEM_P2P_INV_REQ]);
+
+ if (dev_pw_id >= 0) {
+ /* WSC IE in Invitation Request for NFC static handover */
+ p2p_build_wps_ie(p2p, buf, dev_pw_id, 0);
+ }
+
return buf;
}
{
struct wpabuf *buf;
u8 *len;
+ size_t extra = 0;
+
+#ifdef CONFIG_WIFI_DISPLAY
+ struct wpabuf *wfd_ie = p2p->wfd_ie_invitation;
+ if (wfd_ie && group_bssid) {
+ size_t i;
+ for (i = 0; i < p2p->num_groups; i++) {
+ struct p2p_group *g = p2p->groups[i];
+ struct wpabuf *ie;
+ if (os_memcmp(p2p_group_get_interface_addr(g),
+ group_bssid, ETH_ALEN) != 0)
+ continue;
+ ie = p2p_group_get_wfd_ie(g);
+ if (ie) {
+ wfd_ie = ie;
+ break;
+ }
+ }
+ }
+ if (wfd_ie)
+ extra = wpabuf_len(wfd_ie);
+#endif /* CONFIG_WIFI_DISPLAY */
+
+ if (p2p->vendor_elem && p2p->vendor_elem[VENDOR_ELEM_P2P_INV_RESP])
+ extra += wpabuf_len(p2p->vendor_elem[VENDOR_ELEM_P2P_INV_RESP]);
- buf = wpabuf_alloc(1000);
+ buf = wpabuf_alloc(1000 + extra);
if (buf == NULL)
return NULL;
p2p_buf_add_channel_list(buf, p2p->cfg->country, channels);
p2p_buf_update_ie_hdr(buf, len);
+#ifdef CONFIG_WIFI_DISPLAY
+ if (wfd_ie)
+ wpabuf_put_buf(buf, wfd_ie);
+#endif /* CONFIG_WIFI_DISPLAY */
+
+ if (p2p->vendor_elem && p2p->vendor_elem[VENDOR_ELEM_P2P_INV_RESP])
+ wpabuf_put_buf(buf, p2p->vendor_elem[VENDOR_ELEM_P2P_INV_RESP]);
+
return buf;
}
u8 group_bssid[ETH_ALEN], *bssid;
int op_freq = 0;
u8 reg_class = 0, channel = 0;
- struct p2p_channels intersection, *channels = NULL;
+ struct p2p_channels all_channels, intersection, *channels = NULL;
int persistent;
os_memset(group_bssid, 0, sizeof(group_bssid));
- wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
- "P2P: Received Invitation Request from " MACSTR " (freq=%d)",
+ p2p_dbg(p2p, "Received Invitation Request from " MACSTR " (freq=%d)",
MAC2STR(sa), rx_freq);
if (p2p_parse(data, len, &msg))
dev = p2p_get_device(p2p, sa);
if (dev == NULL || (dev->flags & P2P_DEV_PROBE_REQ_ONLY)) {
- wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
- "P2P: Invitation Request from unknown peer "
- MACSTR, MAC2STR(sa));
+ p2p_dbg(p2p, "Invitation Request from unknown peer " MACSTR,
+ MAC2STR(sa));
- if (p2p_add_device(p2p, sa, rx_freq, 0, data + 1, len - 1)) {
- wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
- "P2P: Invitation Request add device failed "
+ if (p2p_add_device(p2p, sa, rx_freq, NULL, 0, data + 1, len - 1,
+ 0)) {
+ p2p_dbg(p2p, "Invitation Request add device failed "
MACSTR, MAC2STR(sa));
status = P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
goto fail;
dev = p2p_get_device(p2p, sa);
if (dev == NULL) {
- wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
- "P2P: Reject Invitation Request from unknown "
- "peer " MACSTR, MAC2STR(sa));
+ p2p_dbg(p2p, "Reject Invitation Request from unknown peer "
+ MACSTR, MAC2STR(sa));
status = P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE;
goto fail;
}
}
if (!msg.group_id || !msg.channel_list) {
- wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
- "P2P: Mandatory attribute missing in Invitation "
- "Request from " MACSTR, MAC2STR(sa));
+ p2p_dbg(p2p, "Mandatory attribute missing in Invitation Request from "
+ MACSTR, MAC2STR(sa));
status = P2P_SC_FAIL_INVALID_PARAMS;
goto fail;
}
* the request was for a persistent group if the attribute is
* missing.
*/
- wpa_printf(MSG_DEBUG, "P2P: Mandatory Invitation Flags "
- "attribute missing from Invitation Request");
+ p2p_dbg(p2p, "Mandatory Invitation Flags attribute missing from Invitation Request");
persistent = 1;
}
- if (p2p_peer_channels_check(p2p, &p2p->cfg->channels, dev,
+ p2p_channels_union(&p2p->cfg->channels, &p2p->cfg->cli_channels,
+ &all_channels);
+
+ if (p2p_peer_channels_check(p2p, &all_channels, dev,
msg.channel_list, msg.channel_list_len) <
0) {
- wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
- "P2P: No common channels found");
+ p2p_dbg(p2p, "No common channels found");
status = P2P_SC_FAIL_NO_COMMON_CHANNELS;
goto fail;
}
+ p2p_channels_dump(p2p, "own channels", &p2p->cfg->channels);
+ p2p_channels_dump(p2p, "own client channels", &all_channels);
+ p2p_channels_dump(p2p, "peer channels", &dev->channels);
+ p2p_channels_intersect(&all_channels, &dev->channels,
+ &intersection);
+ p2p_channels_dump(p2p, "intersection", &intersection);
+
if (p2p->cfg->invitation_process) {
status = p2p->cfg->invitation_process(
p2p->cfg->cb_ctx, sa, msg.group_bssid, msg.group_id,
msg.group_id + ETH_ALEN, msg.group_id_len - ETH_ALEN,
- &go, group_bssid, &op_freq, persistent);
+ &go, group_bssid, &op_freq, persistent, &intersection,
+ msg.dev_password_id_present ? msg.dev_password_id : -1);
+ }
+
+ if (go) {
+ p2p_channels_intersect(&p2p->cfg->channels, &dev->channels,
+ &intersection);
+ p2p_channels_dump(p2p, "intersection(GO)", &intersection);
+ if (intersection.reg_classes == 0) {
+ p2p_dbg(p2p, "No common channels found (GO)");
+ status = P2P_SC_FAIL_NO_COMMON_CHANNELS;
+ goto fail;
+ }
}
if (op_freq) {
- if (p2p_freq_to_channel(p2p->cfg->country, op_freq,
- ®_class, &channel) < 0) {
- wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
- "P2P: Unknown forced freq %d MHz from "
- "invitation_process()", op_freq);
+ p2p_dbg(p2p, "Invitation processing forced frequency %d MHz",
+ op_freq);
+ if (p2p_freq_to_channel(op_freq, ®_class, &channel) < 0) {
+ p2p_dbg(p2p, "Unknown forced freq %d MHz from invitation_process()",
+ op_freq);
status = P2P_SC_FAIL_NO_COMMON_CHANNELS;
goto fail;
}
- p2p_channels_intersect(&p2p->cfg->channels, &dev->channels,
- &intersection);
if (!p2p_channels_includes(&intersection, reg_class, channel))
{
- wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
- "P2P: forced freq %d MHz not in the supported "
- "channels interaction", op_freq);
+ p2p_dbg(p2p, "forced freq %d MHz not in the supported channels interaction",
+ op_freq);
status = P2P_SC_FAIL_NO_COMMON_CHANNELS;
goto fail;
}
if (status == P2P_SC_SUCCESS)
channels = &intersection;
} else {
- op_freq = p2p_channel_to_freq(p2p->cfg->country,
- p2p->cfg->op_reg_class,
- p2p->cfg->op_channel);
+ p2p_dbg(p2p, "No forced channel from invitation processing - figure out best one to use");
+
+ /* Default to own configuration as a starting point */
+ p2p->op_reg_class = p2p->cfg->op_reg_class;
+ p2p->op_channel = p2p->cfg->op_channel;
+ p2p_dbg(p2p, "Own default op_class %d channel %d",
+ p2p->op_reg_class, p2p->op_channel);
+
+ /* Use peer preference if specified and compatible */
+ if (msg.operating_channel) {
+ int req_freq;
+ req_freq = p2p_channel_to_freq(
+ msg.operating_channel[3],
+ msg.operating_channel[4]);
+ p2p_dbg(p2p, "Peer operating channel preference: %d MHz",
+ req_freq);
+ if (req_freq > 0 &&
+ p2p_channels_includes(&intersection,
+ msg.operating_channel[3],
+ msg.operating_channel[4])) {
+ p2p->op_reg_class = msg.operating_channel[3];
+ p2p->op_channel = msg.operating_channel[4];
+ p2p_dbg(p2p, "Use peer preference op_class %d channel %d",
+ p2p->op_reg_class, p2p->op_channel);
+ } else {
+ p2p_dbg(p2p, "Cannot use peer channel preference");
+ }
+ }
+
+ /* Reselect the channel only for the case of the GO */
+ if (go &&
+ !p2p_channels_includes(&intersection, p2p->op_reg_class,
+ p2p->op_channel)) {
+ p2p_dbg(p2p, "Initially selected channel (op_class %d channel %d) not in channel intersection - try to reselect",
+ p2p->op_reg_class, p2p->op_channel);
+ p2p_reselect_channel(p2p, &intersection);
+ p2p_dbg(p2p, "Re-selection result: op_class %d channel %d",
+ p2p->op_reg_class, p2p->op_channel);
+ if (!p2p_channels_includes(&intersection,
+ p2p->op_reg_class,
+ p2p->op_channel)) {
+ p2p_dbg(p2p, "Peer does not support selected operating channel (reg_class=%u channel=%u)",
+ p2p->op_reg_class, p2p->op_channel);
+ status = P2P_SC_FAIL_NO_COMMON_CHANNELS;
+ goto fail;
+ }
+ } else if (go && !(dev->flags & P2P_DEV_FORCE_FREQ) &&
+ !p2p->cfg->cfg_op_channel) {
+ p2p_dbg(p2p, "Try to reselect channel selection with peer information received; previously selected op_class %u channel %u",
+ p2p->op_reg_class, p2p->op_channel);
+ p2p_reselect_channel(p2p, &intersection);
+ }
+
+ /*
+ * Use the driver preferred frequency list extension if
+ * supported.
+ */
+ p2p_check_pref_chan(p2p, go, dev, &msg);
+
+ op_freq = p2p_channel_to_freq(p2p->op_reg_class,
+ p2p->op_channel);
if (op_freq < 0) {
- wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
- "P2P: Unknown operational channel "
- "(country=%c%c reg_class=%u channel=%u)",
+ p2p_dbg(p2p, "Unknown operational channel (country=%c%c reg_class=%u channel=%u)",
p2p->cfg->country[0], p2p->cfg->country[1],
- p2p->cfg->op_reg_class, p2p->cfg->op_channel);
+ p2p->op_reg_class, p2p->op_channel);
status = P2P_SC_FAIL_NO_COMMON_CHANNELS;
goto fail;
}
+ p2p_dbg(p2p, "Selected operating channel - %d MHz", op_freq);
- p2p_channels_intersect(&p2p->cfg->channels, &dev->channels,
- &intersection);
if (status == P2P_SC_SUCCESS) {
- reg_class = p2p->cfg->op_reg_class;
- channel = p2p->cfg->op_channel;
+ reg_class = p2p->op_reg_class;
+ channel = p2p->op_channel;
channels = &intersection;
}
}
if (rx_freq > 0)
freq = rx_freq;
else
- freq = p2p_channel_to_freq(p2p->cfg->country,
- p2p->cfg->reg_class,
+ freq = p2p_channel_to_freq(p2p->cfg->reg_class,
p2p->cfg->channel);
if (freq < 0) {
- wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
- "P2P: Unknown regulatory class/channel");
+ p2p_dbg(p2p, "Unknown regulatory class/channel");
goto out;
}
p2p->inv_group_bssid_ptr = p2p->inv_group_bssid;
} else
p2p->inv_group_bssid_ptr = NULL;
- if (msg.group_id_len - ETH_ALEN <= 32) {
- os_memcpy(p2p->inv_ssid, msg.group_id + ETH_ALEN,
- msg.group_id_len - ETH_ALEN);
- p2p->inv_ssid_len = msg.group_id_len - ETH_ALEN;
+ if (msg.group_id) {
+ if (msg.group_id_len - ETH_ALEN <= SSID_MAX_LEN) {
+ os_memcpy(p2p->inv_ssid, msg.group_id + ETH_ALEN,
+ msg.group_id_len - ETH_ALEN);
+ p2p->inv_ssid_len = msg.group_id_len - ETH_ALEN;
+ }
+ os_memcpy(p2p->inv_go_dev_addr, msg.group_id, ETH_ALEN);
+ } else {
+ p2p->inv_ssid_len = 0;
+ os_memset(p2p->inv_go_dev_addr, 0, ETH_ALEN);
}
- os_memcpy(p2p->inv_go_dev_addr, msg.group_id, ETH_ALEN);
p2p->inv_status = status;
p2p->inv_op_freq = op_freq;
p2p->pending_action_state = P2P_PENDING_INVITATION_RESPONSE;
- if (p2p->cfg->send_action(p2p->cfg->cb_ctx, freq, sa,
- p2p->cfg->dev_addr, p2p->cfg->dev_addr,
- wpabuf_head(resp), wpabuf_len(resp), 200) <
- 0) {
- wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
- "P2P: Failed to send Action frame");
+ if (p2p_send_action(p2p, freq, sa, p2p->cfg->dev_addr,
+ p2p->cfg->dev_addr,
+ wpabuf_head(resp), wpabuf_len(resp), 200) < 0) {
+ p2p_dbg(p2p, "Failed to send Action frame");
}
out:
{
struct p2p_device *dev;
struct p2p_message msg;
+ struct p2p_channels intersection, *channels = NULL;
- wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
- "P2P: Received Invitation Response from " MACSTR,
+ p2p_dbg(p2p, "Received Invitation Response from " MACSTR,
MAC2STR(sa));
dev = p2p_get_device(p2p, sa);
if (dev == NULL) {
- wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
- "P2P: Ignore Invitation Response from unknown peer "
+ p2p_dbg(p2p, "Ignore Invitation Response from unknown peer "
MACSTR, MAC2STR(sa));
+ p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
return;
}
if (dev != p2p->invite_peer) {
- wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
- "P2P: Ignore unexpected Invitation Response from peer "
+ p2p_dbg(p2p, "Ignore unexpected Invitation Response from peer "
MACSTR, MAC2STR(sa));
+ p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
return;
}
- if (p2p_parse(data, len, &msg))
+ if (p2p_parse(data, len, &msg)) {
+ p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
return;
+ }
if (!msg.status) {
- wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
- "P2P: Mandatory Status attribute missing in "
- "Invitation Response from " MACSTR, MAC2STR(sa));
+ p2p_dbg(p2p, "Mandatory Status attribute missing in Invitation Response from "
+ MACSTR, MAC2STR(sa));
+ p2p_parse_free(&msg);
+ p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
+ return;
+ }
+
+ /*
+ * We should not really receive a replayed response twice since
+ * duplicate frames are supposed to be dropped. However, not all drivers
+ * do that for pre-association frames. We did not use to verify dialog
+ * token matches for invitation response frames, but that check can be
+ * safely used to drop a replayed response to the previous Invitation
+ * Request in case the suggested operating channel was changed. This
+ * allows a duplicated reject frame to be dropped with the assumption
+ * that the real response follows after it.
+ */
+ if (*msg.status == P2P_SC_FAIL_NO_COMMON_CHANNELS &&
+ p2p->retry_invite_req_sent &&
+ msg.dialog_token != dev->dialog_token) {
+ p2p_dbg(p2p, "Unexpected Dialog Token %u (expected %u)",
+ msg.dialog_token, dev->dialog_token);
+ p2p_parse_free(&msg);
+ return;
+ }
+
+ if (*msg.status == P2P_SC_FAIL_NO_COMMON_CHANNELS &&
+ p2p->retry_invite_req &&
+ p2p_channel_random_social(&p2p->cfg->channels, &p2p->op_reg_class,
+ &p2p->op_channel) == 0) {
+ p2p->retry_invite_req = 0;
+ p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
+ p2p->cfg->stop_listen(p2p->cfg->cb_ctx);
+ p2p_set_state(p2p, P2P_INVITE);
+ p2p_dbg(p2p, "Resend Invitation Request setting op_class %u channel %u as operating channel",
+ p2p->op_reg_class, p2p->op_channel);
+ p2p->retry_invite_req_sent = 1;
+ p2p_invite_send(p2p, p2p->invite_peer, p2p->invite_go_dev_addr,
+ p2p->invite_dev_pw_id);
+ p2p_parse_free(&msg);
+ return;
+ }
+ p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
+ p2p->retry_invite_req = 0;
+
+ if (!msg.channel_list && *msg.status == P2P_SC_SUCCESS) {
+ p2p_dbg(p2p, "Mandatory Channel List attribute missing in Invitation Response from "
+ MACSTR, MAC2STR(sa));
+#ifdef CONFIG_P2P_STRICT
+ p2p_parse_free(&msg);
+ return;
+#endif /* CONFIG_P2P_STRICT */
+ /* Try to survive without peer channel list */
+ channels = &p2p->channels;
+ } else if (!msg.channel_list) {
+ /* Non-success cases are not required to include Channel List */
+ channels = &p2p->channels;
+ } else if (p2p_peer_channels_check(p2p, &p2p->channels, dev,
+ msg.channel_list,
+ msg.channel_list_len) < 0) {
+ p2p_dbg(p2p, "No common channels found");
p2p_parse_free(&msg);
return;
+ } else {
+ p2p_channels_intersect(&p2p->channels, &dev->channels,
+ &intersection);
+ channels = &intersection;
}
- if (p2p->cfg->invitation_result)
+ if (p2p->cfg->invitation_result) {
+ int peer_oper_freq = 0;
+ int freq = p2p_channel_to_freq(p2p->op_reg_class,
+ p2p->op_channel);
+ if (freq < 0)
+ freq = 0;
+
+ if (msg.operating_channel) {
+ peer_oper_freq = p2p_channel_to_freq(
+ msg.operating_channel[3],
+ msg.operating_channel[4]);
+ if (peer_oper_freq < 0)
+ peer_oper_freq = 0;
+ }
+
+ /*
+ * Use the driver preferred frequency list extension if
+ * supported.
+ */
+ p2p_check_pref_chan(p2p, 0, dev, &msg);
+
p2p->cfg->invitation_result(p2p->cfg->cb_ctx, *msg.status,
- msg.group_bssid);
+ msg.group_bssid, channels, sa,
+ freq, peer_oper_freq);
+ }
p2p_parse_free(&msg);
int p2p_invite_send(struct p2p_data *p2p, struct p2p_device *dev,
- const u8 *go_dev_addr)
+ const u8 *go_dev_addr, int dev_pw_id)
{
struct wpabuf *req;
int freq;
freq = dev->listen_freq > 0 ? dev->listen_freq : dev->oper_freq;
+ if (freq <= 0)
+ freq = dev->oob_go_neg_freq;
if (freq <= 0) {
- wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
- "P2P: No Listen/Operating frequency known for the "
- "peer " MACSTR " to send Invitation Request",
- MAC2STR(dev->p2p_device_addr));
+ p2p_dbg(p2p, "No Listen/Operating frequency known for the peer "
+ MACSTR " to send Invitation Request",
+ MAC2STR(dev->info.p2p_device_addr));
return -1;
}
- req = p2p_build_invitation_req(p2p, dev, go_dev_addr);
+ req = p2p_build_invitation_req(p2p, dev, go_dev_addr, dev_pw_id);
if (req == NULL)
return -1;
- wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
- "P2P: Sending Invitation Request");
+ if (p2p->state != P2P_IDLE)
+ p2p_stop_listen_for_freq(p2p, freq);
+ p2p_dbg(p2p, "Sending Invitation Request");
p2p_set_state(p2p, P2P_INVITE);
p2p->pending_action_state = P2P_PENDING_INVITATION_REQUEST;
p2p->invite_peer = dev;
dev->invitation_reqs++;
- if (p2p->cfg->send_action(p2p->cfg->cb_ctx, freq,
- dev->p2p_device_addr, p2p->cfg->dev_addr,
- dev->p2p_device_addr,
- wpabuf_head(req), wpabuf_len(req), 200) < 0)
- {
- wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
- "P2P: Failed to send Action frame");
+ if (p2p_send_action(p2p, freq, dev->info.p2p_device_addr,
+ p2p->cfg->dev_addr, dev->info.p2p_device_addr,
+ wpabuf_head(req), wpabuf_len(req), 500) < 0) {
+ p2p_dbg(p2p, "Failed to send Action frame");
/* Use P2P find to recover and retry */
p2p_set_timeout(p2p, 0, 0);
+ } else {
+ dev->flags |= P2P_DEV_WAIT_INV_REQ_ACK;
}
wpabuf_free(req);
void p2p_invitation_req_cb(struct p2p_data *p2p, int success)
{
- wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
- "P2P: Invitation Request TX callback: success=%d", success);
+ p2p_dbg(p2p, "Invitation Request TX callback: success=%d", success);
if (p2p->invite_peer == NULL) {
- wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
- "P2P: No pending Invite");
+ p2p_dbg(p2p, "No pending Invite");
return;
}
+ if (success)
+ p2p->invite_peer->flags &= ~P2P_DEV_WAIT_INV_REQ_ACK;
+
/*
* Use P2P find, if needed, to find the other device from its listen
* channel.
*/
p2p_set_state(p2p, P2P_INVITE);
- p2p_set_timeout(p2p, 0, 100000);
+ p2p_set_timeout(p2p, 0, success ? 500000 : 100000);
}
void p2p_invitation_resp_cb(struct p2p_data *p2p, int success)
{
- wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
- "P2P: Invitation Response TX callback: success=%d", success);
+ p2p_dbg(p2p, "Invitation Response TX callback: success=%d", success);
p2p->cfg->send_action_done(p2p->cfg->cb_ctx);
- if (success && p2p->cfg->invitation_received) {
+ if (!success)
+ p2p_dbg(p2p, "Assume Invitation Response was actually received by the peer even though Ack was not reported");
+
+ if (p2p->cfg->invitation_received) {
p2p->cfg->invitation_received(p2p->cfg->cb_ctx,
p2p->inv_sa,
p2p->inv_group_bssid_ptr,
int p2p_invite(struct p2p_data *p2p, const u8 *peer, enum p2p_invite_role role,
const u8 *bssid, const u8 *ssid, size_t ssid_len,
unsigned int force_freq, const u8 *go_dev_addr,
- int persistent_group)
+ int persistent_group, unsigned int pref_freq, int dev_pw_id)
{
struct p2p_device *dev;
- wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
- "P2P: Request to invite peer " MACSTR " role=%d persistent=%d "
+ p2p_dbg(p2p, "Request to invite peer " MACSTR " role=%d persistent=%d "
"force_freq=%u",
MAC2STR(peer), role, persistent_group, force_freq);
if (bssid)
- wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
- "P2P: Invitation for BSSID " MACSTR, MAC2STR(bssid));
+ p2p_dbg(p2p, "Invitation for BSSID " MACSTR, MAC2STR(bssid));
if (go_dev_addr) {
- wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
- "P2P: Invitation for GO Device Address " MACSTR,
+ p2p_dbg(p2p, "Invitation for GO Device Address " MACSTR,
MAC2STR(go_dev_addr));
os_memcpy(p2p->invite_go_dev_addr_buf, go_dev_addr, ETH_ALEN);
p2p->invite_go_dev_addr = p2p->invite_go_dev_addr_buf;
} else
p2p->invite_go_dev_addr = NULL;
- wpa_hexdump_ascii(MSG_DEBUG, "P2P: Invitation for SSID",
+ wpa_hexdump_ascii(MSG_DEBUG, "Invitation for SSID",
ssid, ssid_len);
+ if (dev_pw_id >= 0) {
+ p2p_dbg(p2p, "Invitation to use Device Password ID %d",
+ dev_pw_id);
+ }
+ p2p->invite_dev_pw_id = dev_pw_id;
+ p2p->retry_invite_req = role == P2P_INVITE_ROLE_GO &&
+ persistent_group && !force_freq;
+ p2p->retry_invite_req_sent = 0;
dev = p2p_get_device(p2p, peer);
- if (dev == NULL || (dev->listen_freq <= 0 && dev->oper_freq <= 0)) {
- wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
- "P2P: Cannot invite unknown P2P Device " MACSTR,
+ if (dev == NULL || (dev->listen_freq <= 0 && dev->oper_freq <= 0 &&
+ dev->oob_go_neg_freq <= 0)) {
+ p2p_dbg(p2p, "Cannot invite unknown P2P Device " MACSTR,
MAC2STR(peer));
return -1;
}
+ if (p2p_prepare_channel(p2p, dev, force_freq, pref_freq,
+ role != P2P_INVITE_ROLE_CLIENT) < 0)
+ return -1;
+
+ if (persistent_group && role == P2P_INVITE_ROLE_CLIENT && !force_freq &&
+ !pref_freq)
+ dev->flags |= P2P_DEV_NO_PREF_CHAN;
+ else
+ dev->flags &= ~P2P_DEV_NO_PREF_CHAN;
+
if (dev->flags & P2P_DEV_GROUP_CLIENT_ONLY) {
- if (!(dev->dev_capab & P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY)) {
- wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
- "P2P: Cannot invite a P2P Device " MACSTR
+ if (!(dev->info.dev_capab &
+ P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY)) {
+ p2p_dbg(p2p, "Cannot invite a P2P Device " MACSTR
" that is in a group and is not discoverable",
MAC2STR(peer));
}
dev->invitation_reqs = 0;
- if (force_freq) {
- if (p2p_freq_to_channel(p2p->cfg->country, force_freq,
- &p2p->op_reg_class, &p2p->op_channel) <
- 0) {
- wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
- "P2P: Unsupported frequency %u MHz",
- force_freq);
- return -1;
- }
- p2p->channels.reg_classes = 1;
- p2p->channels.reg_class[0].channels = 1;
- p2p->channels.reg_class[0].reg_class = p2p->op_reg_class;
- p2p->channels.reg_class[0].channel[0] = p2p->op_channel;
- } else {
- p2p->op_reg_class = p2p->cfg->op_reg_class;
- p2p->op_channel = p2p->cfg->op_channel;
- os_memcpy(&p2p->channels, &p2p->cfg->channels,
- sizeof(struct p2p_channels));
- }
-
if (p2p->state != P2P_IDLE)
p2p_stop_find(p2p);
os_memcpy(p2p->inv_ssid, ssid, ssid_len);
p2p->inv_ssid_len = ssid_len;
p2p->inv_persistent = persistent_group;
- return p2p_invite_send(p2p, dev, go_dev_addr);
+ return p2p_invite_send(p2p, dev, go_dev_addr, dev_pw_id);
}
projects / mech_eap.git / blobdiff