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DPP: Add the crypto suite field to the frames 

This additional field was added to DPP Public Action frames in DPP tech
spec v0.2.3 to support cryptographic agility in the future.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This commit is contained in:
Jouni Malinen 2017-10-10 01:30:08 +03:00 committed by Jouni Malinen
parent 22a0147557
commit 8c19ea3f21
3 changed files with 26 additions and 13 deletions
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18
src/ap/dpp_hostapd.c
View File

@ -1204,18 +1204,24 @@ hostapd_dpp_rx_pkex_commit_reveal_resp(struct hostapd_data *hapd, const u8 *src,
void hostapd_dpp_rx_action(struct hostapd_data *hapd, const u8 *src,
const u8 *buf, size_t len, unsigned int freq)
{
u8 crypto_suite;
enum dpp_public_action_frame_type type;
if (len < 1)
if (len < 2)
return;
type = buf[0];
buf++;
len--;
crypto_suite = *buf++;
type = *buf++;
len -= 2;
wpa_printf(MSG_DEBUG,
"DPP: Received DPP Public Action frame type %d from "
"DPP: Received DPP Public Action frame crypto suite %u type %d from "
MACSTR " freq=%u",
type, MAC2STR(src), freq);
crypto_suite, type, MAC2STR(src), freq);
if (crypto_suite != 1) {
wpa_printf(MSG_DEBUG, "DPP: Unsupported crypto suite %u",
crypto_suite);
return;
}
wpa_hexdump(MSG_MSGDUMP, "DPP: Received message attributes", buf, len);
if (dpp_check_attrs(buf, len) < 0)
return;

3
src/common/dpp.c
View File

@ -484,13 +484,14 @@ struct wpabuf * dpp_alloc_msg(enum dpp_public_action_frame_type type,
{
struct wpabuf *msg;
msg = wpabuf_alloc(7 + len);
msg = wpabuf_alloc(8 + len);
if (!msg)
return NULL;
wpabuf_put_u8(msg, WLAN_ACTION_PUBLIC);
wpabuf_put_u8(msg, WLAN_PA_VENDOR_SPECIFIC);
wpabuf_put_be24(msg, OUI_WFA);
wpabuf_put_u8(msg, DPP_OUI_TYPE);
wpabuf_put_u8(msg, 1); /* Crypto Suite */
wpabuf_put_u8(msg, type);
return msg;
}

18
wpa_supplicant/dpp_supplicant.c
View File

@ -1587,18 +1587,24 @@ wpas_dpp_rx_pkex_commit_reveal_resp(struct wpa_supplicant *wpa_s, const u8 *src,
void wpas_dpp_rx_action(struct wpa_supplicant *wpa_s, const u8 *src,
const u8 *buf, size_t len, unsigned int freq)
{
u8 crypto_suite;
enum dpp_public_action_frame_type type;
if (len < 1)
if (len < 2)
return;
type = buf[0];
buf++;
len--;
crypto_suite = *buf++;
type = *buf++;
len -= 2;
wpa_printf(MSG_DEBUG,
"DPP: Received DPP Public Action frame type %d from "
"DPP: Received DPP Public Action frame crypto suite %u type %d from "
MACSTR " freq=%u",
type, MAC2STR(src), freq);
crypto_suite, type, MAC2STR(src), freq);
if (crypto_suite != 1) {
wpa_printf(MSG_DEBUG, "DPP: Unsupported crypto suite %u",
crypto_suite);
return;
}
wpa_hexdump(MSG_MSGDUMP, "DPP: Received message attributes", buf, len);
if (dpp_check_attrs(buf, len) < 0)
return;