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p2putil: Extract WFD IE payloads from P2P Action frames

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This commit is contained in:
Andrew Zaborowski 2020-07-11 03:00:44 +02:00 committed by Denis Kenzior
parent 75e014f72b
commit b924b1da61
2 changed files with 68 additions and 21 deletions
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75
src/p2putil.c
View File

@ -984,6 +984,8 @@ int p2p_parse_go_negotiation_req(const uint8_t *pdu, size_t len,
d.go_intent = go_intent.intent;
d.go_tie_breaker = go_intent.tie_breaker;
d.wfd = ie_tlv_extract_wfd_payload(pdu + 1, len - 1, &d.wfd_size);
memcpy(out, &d, sizeof(d));
return 0;
@ -1043,6 +1045,8 @@ int p2p_parse_go_negotiation_resp(const uint8_t *pdu, size_t len,
d.go_intent = go_intent.intent;
d.go_tie_breaker = go_intent.tie_breaker;
d.wfd = ie_tlv_extract_wfd_payload(pdu + 1, len - 1, &d.wfd_size);
memcpy(out, &d, sizeof(d));
return 0;
@ -1072,12 +1076,16 @@ int p2p_parse_go_negotiation_confirmation(const uint8_t *pdu, size_t len,
REQUIRED(CHANNEL_LIST, &d.channel_list),
OPTIONAL(P2P_GROUP_ID, &d.group_id),
-1);
if (r < 0)
goto error;
if (r >= 0)
memcpy(out, &d, sizeof(d));
else
p2p_clear_go_negotiation_confirmation(&d);
d.wfd = ie_tlv_extract_wfd_payload(pdu + 1, len - 1, &d.wfd_size);
memcpy(out, &d, sizeof(d));
return 0;
error:
p2p_clear_go_negotiation_confirmation(&d);
return r;
}
@ -1109,27 +1117,30 @@ int p2p_parse_invitation_req(const uint8_t *pdu, size_t len,
REQUIRED(P2P_DEVICE_INFO, &d.device_info),
-1);
if (r < 0)
goto done;
goto error;
/* A WSC IE is optional */
wsc_data = ie_tlv_extract_wsc_payload(pdu + 1, len - 1, &wsc_len);
if (!wsc_data)
goto done;
r = wsc_parse_attrs(wsc_data, wsc_len, &wsc_version2, NULL, 0, NULL,
if (wsc_data) {
r = wsc_parse_attrs(
wsc_data, wsc_len, &wsc_version2, NULL, 0, NULL,
WSC_REQUIRED(DEVICE_PASSWORD_ID, &d.device_password_id),
WSC_ATTR_INVALID);
l_free(wsc_data);
l_free(wsc_data);
if (r >= 0 && !wsc_version2)
r = -EINVAL;
if (r >= 0 && !wsc_version2) {
r = -EINVAL;
goto error;
}
}
done:
if (r >= 0)
memcpy(out, &d, sizeof(d));
else
p2p_clear_invitation_req(&d);
d.wfd = ie_tlv_extract_wfd_payload(pdu + 1, len - 1, &d.wfd_size);
memcpy(out, &d, sizeof(d));
return 0;
error:
p2p_clear_invitation_req(&d);
return r;
}
@ -1154,12 +1165,16 @@ int p2p_parse_invitation_resp(const uint8_t *pdu, size_t len,
OPTIONAL(P2P_GROUP_BSSID, &d.group_bssid),
OPTIONAL(CHANNEL_LIST, &d.channel_list),
-1);
if (r < 0)
goto error;
if (r >= 0)
memcpy(out, &d, sizeof(d));
else
p2p_clear_invitation_resp(&d);
d.wfd = ie_tlv_extract_wfd_payload(pdu + 1, len - 1, &d.wfd_size);
memcpy(out, &d, sizeof(d));
return 0;
error:
p2p_clear_invitation_resp(&d);
return r;
}
@ -1277,6 +1292,8 @@ int p2p_parse_provision_disc_req(const uint8_t *pdu, size_t len,
goto error;
}
d.wfd = ie_tlv_extract_wfd_payload(pdu + 1, len - 1, &d.wfd_size);
memcpy(out, &d, sizeof(d));
return 0;
@ -1355,6 +1372,8 @@ int p2p_parse_provision_disc_resp(const uint8_t *pdu, size_t len,
goto error;
}
d.wfd = ie_tlv_extract_wfd_payload(pdu + 1, len - 1, &d.wfd_size);
memcpy(out, &d, sizeof(d));
return 0;
@ -1523,41 +1542,55 @@ void p2p_clear_go_negotiation_req(struct p2p_go_negotiation_req *data)
{
p2p_clear_channel_list_attr(&data->channel_list);
p2p_clear_device_info_attr(&data->device_info);
l_free(data->wfd);
data->wfd = NULL;
}
void p2p_clear_go_negotiation_resp(struct p2p_go_negotiation_resp *data)
{
p2p_clear_channel_list_attr(&data->channel_list);
p2p_clear_device_info_attr(&data->device_info);
l_free(data->wfd);
data->wfd = NULL;
}
void p2p_clear_go_negotiation_confirmation(
struct p2p_go_negotiation_confirmation *data)
{
p2p_clear_channel_list_attr(&data->channel_list);
l_free(data->wfd);
data->wfd = NULL;
}
void p2p_clear_invitation_req(struct p2p_invitation_req *data)
{
p2p_clear_channel_list_attr(&data->channel_list);
p2p_clear_device_info_attr(&data->device_info);
l_free(data->wfd);
data->wfd = NULL;
}
void p2p_clear_invitation_resp(struct p2p_invitation_resp *data)
{
p2p_clear_channel_list_attr(&data->channel_list);
l_free(data->wfd);
data->wfd = NULL;
}
void p2p_clear_provision_disc_req(struct p2p_provision_discovery_req *data)
{
p2p_clear_channel_list_attr(&data->channel_list);
p2p_clear_device_info_attr(&data->device_info);
l_free(data->wfd);
data->wfd = NULL;
}
void p2p_clear_provision_disc_resp(struct p2p_provision_discovery_resp *data)
{
p2p_clear_channel_list_attr(&data->channel_list);
p2p_clear_device_info_attr(&data->device_info);
l_free(data->wfd);
data->wfd = NULL;
}
void p2p_clear_notice_of_absence(struct p2p_notice_of_absence *data)

14
src/p2putil.h
View File

@ -377,6 +377,8 @@ struct p2p_go_negotiation_req {
struct p2p_device_info_attr device_info;
struct p2p_channel_attr operating_channel;
enum wsc_device_password_id device_password_id;
uint8_t *wfd;
ssize_t wfd_size;
};
struct p2p_go_negotiation_resp {
@ -392,6 +394,8 @@ struct p2p_go_negotiation_resp {
struct p2p_device_info_attr device_info;
struct p2p_group_id_attr group_id;
enum wsc_device_password_id device_password_id;
uint8_t *wfd;
ssize_t wfd_size;
};
struct p2p_go_negotiation_confirmation {
@ -401,6 +405,8 @@ struct p2p_go_negotiation_confirmation {
struct p2p_channel_attr operating_channel;
struct p2p_channel_list_attr channel_list;
struct p2p_group_id_attr group_id;
uint8_t *wfd;
ssize_t wfd_size;
};
struct p2p_invitation_req {
@ -413,6 +419,8 @@ struct p2p_invitation_req {
struct p2p_group_id_attr group_id;
struct p2p_device_info_attr device_info;
enum wsc_device_password_id device_password_id;
uint8_t *wfd;
ssize_t wfd_size;
};
struct p2p_invitation_resp {
@ -422,6 +430,8 @@ struct p2p_invitation_resp {
struct p2p_channel_attr operating_channel;
uint8_t group_bssid[6];
struct p2p_channel_list_attr channel_list;
uint8_t *wfd;
ssize_t wfd_size;
};
struct p2p_device_discoverability_req {
@ -453,6 +463,8 @@ struct p2p_provision_discovery_req {
enum p2p_asp_coordination_transport_protocol transport_protocol;
struct p2p_group_id_attr persistent_group_info;
uint16_t wsc_config_method;
uint8_t *wfd;
ssize_t wfd_size;
};
struct p2p_provision_discovery_resp {
@ -472,6 +484,8 @@ struct p2p_provision_discovery_resp {
struct p2p_group_id_attr persistent_group_info;
struct p2p_session_info_data_attr session_info;
uint16_t wsc_config_method;
uint8_t *wfd;
ssize_t wfd_size;
};
struct p2p_notice_of_absence {