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P2P: Include P2P IE in (Re)AssocReq to infra AP if it uses P2P IE

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While this is not strictly speaking required by the P2P specification
for a not-P2P Managed Device, this can provide useful information for
the P2P manager AP and may be needed to pass certification tests.
This commit is contained in:
Jouni Malinen 2010-07-06 21:37:20 -07:00 committed by Jouni Malinen
parent 5be5305b7e
commit 4c08c0bd57
6 changed files with 24 additions and 16 deletions
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16
src/p2p/p2p.c
View File

@ -1606,20 +1606,21 @@ int p2p_probe_req_rx(struct p2p_data *p2p, const u8 *addr, const u8 *ie,
static int p2p_assoc_req_ie_wlan_ap(struct p2p_data *p2p, const u8 *bssid,
u8 *buf, size_t len)
u8 *buf, size_t len, struct wpabuf *p2p_ie)
{
struct wpabuf *tmp;
u8 *lpos;
size_t tmplen;
int res;
if (!(p2p->dev_capab & P2P_DEV_CAPAB_INFRA_MANAGED))
return 0;
if (p2p_ie == NULL)
return 0; /* WLAN AP is not a P2P manager */
/*
* (Re)Association Request - P2P IE
* P2P Capability attribute (shall be present)
* P2P Interface attribute (present if concurrent device)
* P2P Interface attribute (present if concurrent device and
* P2P Management is enabled)
*/
tmp = wpabuf_alloc(200);
if (tmp == NULL)
@ -1627,7 +1628,8 @@ static int p2p_assoc_req_ie_wlan_ap(struct p2p_data *p2p, const u8 *bssid,
lpos = p2p_buf_add_ie_hdr(tmp);
p2p_buf_add_capability(tmp, p2p->dev_capab, 0);
if (p2p->dev_capab & P2P_DEV_CAPAB_CONCURRENT_OPER)
if ((p2p->dev_capab & P2P_DEV_CAPAB_CONCURRENT_OPER) &&
(p2p->dev_capab & P2P_DEV_CAPAB_INFRA_MANAGED))
p2p_buf_add_p2p_interface(tmp, p2p);
p2p_buf_update_ie_hdr(tmp, lpos);
@ -1645,7 +1647,7 @@ static int p2p_assoc_req_ie_wlan_ap(struct p2p_data *p2p, const u8 *bssid,
int p2p_assoc_req_ie(struct p2p_data *p2p, const u8 *bssid, u8 *buf,
size_t len, int p2p_group)
size_t len, int p2p_group, struct wpabuf *p2p_ie)
{
struct wpabuf *tmp;
u8 *lpos;
@ -1654,7 +1656,7 @@ int p2p_assoc_req_ie(struct p2p_data *p2p, const u8 *bssid, u8 *buf,
int res;
if (!p2p_group)
return p2p_assoc_req_ie_wlan_ap(p2p, bssid, buf, len);
return p2p_assoc_req_ie_wlan_ap(p2p, bssid, buf, len, p2p_ie);
/*
* (Re)Association Request - P2P IE

3
src/p2p/p2p.h
View File

@ -1142,10 +1142,11 @@ int p2p_scan_result_text(const u8 *ies, size_t ies_len, char *buf, char *end);
* @buf: Buffer for writing the P2P IE
* @len: Maximum buf length in octets
* @p2p_group: Whether this is for association with a P2P GO
* @p2p_ie: Reassembled P2P IE data from scan results or %NULL if none
* Returns: Number of octets written into buf or -1 on failure
*/
int p2p_assoc_req_ie(struct p2p_data *p2p, const u8 *bssid, u8 *buf,
size_t len, int p2p_group);
size_t len, int p2p_group, struct wpabuf *p2p_ie);
/**
* p2p_scan_ie - Build P2P IE for Probe Request

13
wpa_supplicant/p2p_supplicant.c
View File

@ -2994,16 +2994,23 @@ int wpas_p2p_listen(struct wpa_supplicant *wpa_s, unsigned int timeout)
}
int wpas_p2p_assoc_req_ie(struct wpa_supplicant *wpa_s, const u8 *bssid,
int wpas_p2p_assoc_req_ie(struct wpa_supplicant *wpa_s, struct wpa_bss *bss,
u8 *buf, size_t len, int p2p_group)
{
struct wpabuf *p2p_ie;
int ret;
if (wpa_s->global->p2p_disabled)
return -1;
if (wpa_s->global->p2p == NULL)
return -1;
return p2p_assoc_req_ie(wpa_s->global->p2p, bssid, buf, len,
p2p_group);
p2p_ie = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
ret = p2p_assoc_req_ie(wpa_s->global->p2p, bss->bssid, buf, len,
p2p_group, p2p_ie);
wpabuf_free(p2p_ie);
return ret;
}

2
wpa_supplicant/p2p_supplicant.h
View File

@ -50,7 +50,7 @@ int wpas_p2p_find(struct wpa_supplicant *wpa_s, unsigned int timeout,
enum p2p_discovery_type type);
void wpas_p2p_stop_find(struct wpa_supplicant *wpa_s);
int wpas_p2p_listen(struct wpa_supplicant *wpa_s, unsigned int timeout);
int wpas_p2p_assoc_req_ie(struct wpa_supplicant *wpa_s, const u8 *bssid,
int wpas_p2p_assoc_req_ie(struct wpa_supplicant *wpa_s, struct wpa_bss *bss,
u8 *buf, size_t len, int p2p_group);
int wpas_p2p_probe_req_rx(struct wpa_supplicant *wpa_s, const u8 *addr,
const u8 *ie, size_t ie_len);

3
wpa_supplicant/sme.c
View File

@ -220,8 +220,7 @@ void sme_authenticate(struct wpa_supplicant *wpa_s,
pos = wpa_s->sme.assoc_req_ie + wpa_s->sme.assoc_req_ie_len;
len = sizeof(wpa_s->sme.assoc_req_ie) -
wpa_s->sme.assoc_req_ie_len;
res = wpas_p2p_assoc_req_ie(wpa_s, bss->bssid, pos, len,
p2p_group);
res = wpas_p2p_assoc_req_ie(wpa_s, bss, pos, len, p2p_group);
if (res >= 0)
wpa_s->sme.assoc_req_ie_len += res;
}

3
wpa_supplicant/wpa_supplicant.c
View File

@ -1165,8 +1165,7 @@ void wpa_supplicant_associate(struct wpa_supplicant *wpa_s,
p2p_group = wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE;
pos = wpa_ie + wpa_ie_len;
len = sizeof(wpa_ie) - wpa_ie_len;
res = wpas_p2p_assoc_req_ie(wpa_s, bss->bssid, pos, len,
p2p_group);
res = wpas_p2p_assoc_req_ie(wpa_s, bss, pos, len, p2p_group);
if (res >= 0)
wpa_ie_len += res;
}