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P2P NFC: Add GO info into handover message when in client role

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P2P Group ID can optionally be included in the connection handover
messages when acting as a P2P Client in a group. Add this information
and show it in the P2P-NFC-PEER-CLIENT event message.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
master
Jouni Malinen 11 years ago committed by Jouni Malinen
parent 23318bea94
commit abe44e3ca2
3 changed files with 69 additions and 15 deletions
Show Stats Download Patch File Download Diff File

30
src/p2p/p2p.c
Unescape Escape View File

@ -4380,7 +4380,9 @@ void p2p_err(struct p2p_data *p2p, const char *fmt, ...)
#ifdef CONFIG_WPS_NFC
static struct wpabuf * p2p_build_nfc_handover(struct p2p_data *p2p,
int client_freq)
int client_freq,
const u8 *go_dev_addr,
const u8 *ssid, size_t ssid_len)
{
struct wpabuf *buf;
u8 op_class, channel;
@ -4413,6 +4415,14 @@ static struct wpabuf * p2p_build_nfc_handover(struct p2p_data *p2p,
/* Limit number of clients to avoid very long message */
p2p_buf_add_group_info(p2p->groups[0], buf, 5);
p2p_group_buf_add_id(p2p->groups[0], buf);
} else if (client_freq > 0 &&
go_dev_addr && !is_zero_ether_addr(go_dev_addr) &&
ssid && ssid_len > 0) {
/*
* Add the optional P2P Group ID to indicate in which group this
* device is a P2P Client.
*/
p2p_buf_add_group_id(buf, go_dev_addr, ssid, ssid_len);
}
return buf;
@ -4420,16 +4430,22 @@ static struct wpabuf * p2p_build_nfc_handover(struct p2p_data *p2p,
struct wpabuf * p2p_build_nfc_handover_req(struct p2p_data *p2p,
int client_freq)
int client_freq,
const u8 *go_dev_addr,
const u8 *ssid, size_t ssid_len)
{
return p2p_build_nfc_handover(p2p, client_freq);
return p2p_build_nfc_handover(p2p, client_freq, go_dev_addr, ssid,
ssid_len);
}
struct wpabuf * p2p_build_nfc_handover_sel(struct p2p_data *p2p,
int client_freq)
int client_freq,
const u8 *go_dev_addr,
const u8 *ssid, size_t ssid_len)
{
return p2p_build_nfc_handover(p2p, client_freq);
return p2p_build_nfc_handover(p2p, client_freq, go_dev_addr, ssid,
ssid_len);
}
@ -4499,6 +4515,10 @@ int p2p_process_nfc_connection_handover(struct p2p_data *p2p,
if (role == P2P_GO_IN_A_GROUP) {
p2p_dbg(p2p, "Peer OOB GO operating channel: %u MHz", freq);
params->go_freq = freq;
} else if (role == P2P_CLIENT_IN_A_GROUP) {
p2p_dbg(p2p, "Peer (client) OOB GO operating channel: %u MHz",
freq);
params->go_freq = freq;
} else
p2p_dbg(p2p, "Peer OOB GO Neg channel: %u MHz", freq);
dev->oob_go_neg_freq = freq;

8
src/p2p/p2p.h
Unescape Escape View File

@ -1900,9 +1900,13 @@ int p2p_set_disc_int(struct p2p_data *p2p, int min_disc_int, int max_disc_int,
const char * p2p_get_state_txt(struct p2p_data *p2p);
struct wpabuf * p2p_build_nfc_handover_req(struct p2p_data *p2p,
int client_freq);
int client_freq,
const u8 *go_dev_addr,
const u8 *ssid, size_t ssid_len);
struct wpabuf * p2p_build_nfc_handover_sel(struct p2p_data *p2p,
int client_freq);
int client_freq,
const u8 *go_dev_addr,
const u8 *ssid, size_t ssid_len);
struct p2p_nfc_params {
int sel;

46
wpa_supplicant/p2p_supplicant.c
Unescape Escape View File

@ -7041,16 +7041,25 @@ static struct wpabuf * wpas_p2p_nfc_handover(int ndef, struct wpabuf *wsc,
}
static int wpas_p2p_cli_freq(struct wpa_supplicant *wpa_s)
static int wpas_p2p_cli_freq(struct wpa_supplicant *wpa_s,
struct wpa_ssid **ssid, u8 *go_dev_addr)
{
struct wpa_supplicant *iface;
if (go_dev_addr)
os_memset(go_dev_addr, 0, ETH_ALEN);
if (ssid)
*ssid = NULL;
for (iface = wpa_s->global->ifaces; iface; iface = iface->next) {
if (iface->wpa_state < WPA_ASSOCIATING ||
iface->current_ssid == NULL || iface->assoc_freq == 0 ||
!iface->current_ssid->p2p_group ||
iface->current_ssid->mode != WPAS_MODE_INFRA)
continue;
if (ssid)
*ssid = iface->current_ssid;
if (go_dev_addr)
os_memcpy(go_dev_addr, iface->go_dev_addr, ETH_ALEN);
return iface->assoc_freq;
}
return 0;
@ -7061,7 +7070,9 @@ struct wpabuf * wpas_p2p_nfc_handover_req(struct wpa_supplicant *wpa_s,
int ndef)
{
struct wpabuf *wsc, *p2p;
int cli_freq = wpas_p2p_cli_freq(wpa_s);
struct wpa_ssid *ssid;
u8 go_dev_addr[ETH_ALEN];
int cli_freq = wpas_p2p_cli_freq(wpa_s, &ssid, go_dev_addr);
if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL) {
wpa_printf(MSG_DEBUG, "P2P: P2P disabled - cannot build handover request");
@ -7080,7 +7091,9 @@ struct wpabuf * wpas_p2p_nfc_handover_req(struct wpa_supplicant *wpa_s,
wpa_s->parent->wps, wpa_s->conf->wps_nfc_dh_pubkey);
} else
wsc = NULL;
p2p = p2p_build_nfc_handover_req(wpa_s->global->p2p, cli_freq);
p2p = p2p_build_nfc_handover_req(wpa_s->global->p2p, cli_freq,
go_dev_addr, ssid ? ssid->ssid : NULL,
ssid ? ssid->ssid_len : 0);
return wpas_p2p_nfc_handover(ndef, wsc, p2p);
}
@ -7090,7 +7103,9 @@ struct wpabuf * wpas_p2p_nfc_handover_sel(struct wpa_supplicant *wpa_s,
int ndef, int tag)
{
struct wpabuf *wsc, *p2p;
int cli_freq = wpas_p2p_cli_freq(wpa_s);
struct wpa_ssid *ssid;
u8 go_dev_addr[ETH_ALEN];
int cli_freq = wpas_p2p_cli_freq(wpa_s, &ssid, go_dev_addr);
if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL)
return NULL;
@ -7109,7 +7124,9 @@ struct wpabuf * wpas_p2p_nfc_handover_sel(struct wpa_supplicant *wpa_s,
tag ? wpa_s->conf->wps_nfc_dev_pw : NULL);
} else
wsc = NULL;
p2p = p2p_build_nfc_handover_sel(wpa_s->global->p2p, cli_freq);
p2p = p2p_build_nfc_handover_sel(wpa_s->global->p2p, cli_freq,
go_dev_addr, ssid ? ssid->ssid : NULL,
ssid ? ssid->ssid_len : 0);
return wpas_p2p_nfc_handover(ndef, wsc, p2p);
}
@ -7280,12 +7297,25 @@ static int wpas_p2p_nfc_connection_handover(struct wpa_supplicant *wpa_s,
}
if (params.next_step == PEER_CLIENT) {
wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_PEER_CLIENT "peer="
MACSTR, MAC2STR(params.peer->p2p_device_addr));
if (!is_zero_ether_addr(params.go_dev_addr)) {
wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_PEER_CLIENT
"peer=" MACSTR " freq=%d go_dev_addr=" MACSTR
" ssid=\"%s\"",
MAC2STR(params.peer->p2p_device_addr),
params.go_freq,
MAC2STR(params.go_dev_addr),
wpa_ssid_txt(params.go_ssid,
params.go_ssid_len));
} else {
wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_PEER_CLIENT
"peer=" MACSTR " freq=%d",
MAC2STR(params.peer->p2p_device_addr),
params.go_freq);
}
return 0;
}
if (wpas_p2p_cli_freq(wpa_s)) {
if (wpas_p2p_cli_freq(wpa_s, NULL, NULL)) {
wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_NFC_WHILE_CLIENT "peer="
MACSTR, MAC2STR(params.peer->p2p_device_addr));
return 0;

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