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P2PS: Add service hash to Probe Request frames

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Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This commit is contained in:
Brian Gix 2014-09-05 17:20:18 +03:00 committed by Jouni Malinen
parent 5177509657
commit 1a94b0adcc
3 changed files with 30 additions and 2 deletions
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16
src/p2p/p2p.c
View file

@ -3074,6 +3074,7 @@ void p2p_scan_res_handled(struct p2p_data *p2p)
void p2p_scan_ie(struct p2p_data *p2p, struct wpabuf *ies, const u8 *dev_id)
{
u8 dev_capab;
u8 *len;
#ifdef CONFIG_WIFI_DISPLAY
@ -3086,8 +3087,15 @@ void p2p_scan_ie(struct p2p_data *p2p, struct wpabuf *ies, const u8 *dev_id)
p2p->vendor_elem[VENDOR_ELEM_PROBE_REQ_P2P]);
len = p2p_buf_add_ie_hdr(ies);
p2p_buf_add_capability(ies, p2p->dev_capab &
~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY, 0);
dev_capab = p2p->dev_capab & ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY;
/* P2PS requires Probe Request frames to include SD bit */
if (p2p->p2ps_seek && p2p->p2ps_seek_count)
dev_capab |= P2P_DEV_CAPAB_SERVICE_DISCOVERY;
p2p_buf_add_capability(ies, dev_capab, 0);
if (dev_id)
p2p_buf_add_device_id(ies, dev_id);
if (p2p->cfg->reg_class && p2p->cfg->channel)
@ -3097,6 +3105,10 @@ void p2p_scan_ie(struct p2p_data *p2p, struct wpabuf *ies, const u8 *dev_id)
if (p2p->ext_listen_interval)
p2p_buf_add_ext_listen_timing(ies, p2p->ext_listen_period,
p2p->ext_listen_interval);
if (p2p->p2ps_seek && p2p->p2ps_seek_count)
p2p_buf_add_service_hash(ies, p2p);
/* TODO: p2p_buf_add_operating_channel() if GO */
p2p_buf_update_ie_hdr(ies, len);
}

15
src/p2p/p2p_build.c
View file

@ -342,6 +342,21 @@ void p2p_buf_add_oob_go_neg_channel(struct wpabuf *buf, const char *country,
}
void p2p_buf_add_service_hash(struct wpabuf *buf, struct p2p_data *p2p)
{
if (!p2p)
return;
/* Service Hash */
wpabuf_put_u8(buf, P2P_ATTR_SERVICE_HASH);
wpabuf_put_le16(buf, p2p->p2ps_seek_count * P2PS_HASH_LEN);
wpabuf_put_data(buf, p2p->query_hash,
p2p->p2ps_seek_count * P2PS_HASH_LEN);
wpa_hexdump(MSG_DEBUG, "P2P: * Service Hash",
p2p->query_hash, p2p->p2ps_seek_count * P2PS_HASH_LEN);
}
void p2p_buf_add_session_info(struct wpabuf *buf, const char *info)
{
size_t info_len = 0;

1
src/p2p/p2p_i.h
View file

@ -729,6 +729,7 @@ void p2p_buf_add_p2p_interface(struct wpabuf *buf, struct p2p_data *p2p);
void p2p_buf_add_oob_go_neg_channel(struct wpabuf *buf, const char *country,
u8 oper_class, u8 channel,
enum p2p_role_indication role);
void p2p_buf_add_service_hash(struct wpabuf *buf, struct p2p_data *p2p);
void p2p_buf_add_session_info(struct wpabuf *buf, const char *info);
void p2p_buf_add_connection_capability(struct wpabuf *buf, u8 connection_cap);
void p2p_buf_add_advertisement_id(struct wpabuf *buf, u32 id, const u8 *mac);