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DPP: Allow protocol key to be overridden for testing purposes

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This can be used for various testing needs.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This commit is contained in:
Jouni Malinen 2017-12-05 23:49:55 +02:00 committed by Jouni Malinen
parent 33cddd7fe9
commit f55269753c
3 changed files with 43 additions and 0 deletions
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30
src/common/dpp.c
View file

@ -34,6 +34,8 @@ u8 dpp_pkex_own_mac_override[ETH_ALEN] = { 0, 0, 0, 0, 0, 0 };
u8 dpp_pkex_peer_mac_override[ETH_ALEN] = { 0, 0, 0, 0, 0, 0 };
u8 dpp_pkex_ephemeral_key_override[600];
size_t dpp_pkex_ephemeral_key_override_len = 0;
u8 dpp_protocol_key_override[600];
size_t dpp_protocol_key_override_len = 0;
static int dpp_test_gen_invalid_key(struct wpabuf *msg,
const struct dpp_curve_params *curve);
@ -2091,7 +2093,21 @@ struct dpp_authentication * dpp_auth_init(void *msg_ctx,
}
wpa_hexdump(MSG_DEBUG, "DPP: I-nonce", auth->i_nonce, nonce_len);
#ifdef CONFIG_TESTING_OPTIONS
if (dpp_protocol_key_override_len) {
const struct dpp_curve_params *tmp_curve;
wpa_printf(MSG_INFO,
"DPP: TESTING - override protocol key");
auth->own_protocol_key = dpp_set_keypair(
&tmp_curve, dpp_protocol_key_override,
dpp_protocol_key_override_len);
} else {
auth->own_protocol_key = dpp_gen_keypair(auth->curve);
}
#else /* CONFIG_TESTING_OPTIONS */
auth->own_protocol_key = dpp_gen_keypair(auth->curve);
#endif /* CONFIG_TESTING_OPTIONS */
if (!auth->own_protocol_key)
goto fail;
@ -2607,7 +2623,21 @@ static int dpp_auth_build_resp_ok(struct dpp_authentication *auth)
}
wpa_hexdump(MSG_DEBUG, "DPP: R-nonce", auth->r_nonce, nonce_len);
#ifdef CONFIG_TESTING_OPTIONS
if (dpp_protocol_key_override_len) {
const struct dpp_curve_params *tmp_curve;
wpa_printf(MSG_INFO,
"DPP: TESTING - override protocol key");
auth->own_protocol_key = dpp_set_keypair(
&tmp_curve, dpp_protocol_key_override,
dpp_protocol_key_override_len);
} else {
auth->own_protocol_key = dpp_gen_keypair(auth->curve);
}
#else /* CONFIG_TESTING_OPTIONS */
auth->own_protocol_key = dpp_gen_keypair(auth->curve);
#endif /* CONFIG_TESTING_OPTIONS */
if (!auth->own_protocol_key)
goto fail;

2
src/common/dpp.h
View file

@ -339,6 +339,8 @@ extern u8 dpp_pkex_own_mac_override[ETH_ALEN];
extern u8 dpp_pkex_peer_mac_override[ETH_ALEN];
extern u8 dpp_pkex_ephemeral_key_override[600];
extern size_t dpp_pkex_ephemeral_key_override_len;
extern u8 dpp_protocol_key_override[600];
extern size_t dpp_protocol_key_override_len;
#endif /* CONFIG_TESTING_OPTIONS */
void dpp_bootstrap_info_free(struct dpp_bootstrap_info *info);

11
wpa_supplicant/ctrl_iface.c
View file

@ -633,6 +633,16 @@ static int wpa_supplicant_ctrl_iface_set(struct wpa_supplicant *wpa_s,
ret = -1;
else
dpp_pkex_ephemeral_key_override_len = hex_len / 2;
} else if (os_strcasecmp(cmd, "dpp_protocol_key_override") == 0) {
size_t hex_len = os_strlen(value);
if (hex_len > 2 * sizeof(dpp_protocol_key_override))
ret = -1;
else if (hexstr2bin(value, dpp_protocol_key_override,
hex_len / 2))
ret = -1;
else
dpp_protocol_key_override_len = hex_len / 2;
#endif /* CONFIG_TESTING_OPTIONS */
#endif /* CONFIG_DPP */
#ifdef CONFIG_TESTING_OPTIONS
@ -7784,6 +7794,7 @@ static void wpa_supplicant_ctrl_iface_flush(struct wpa_supplicant *wpa_s)
os_memset(dpp_pkex_own_mac_override, 0, ETH_ALEN);
os_memset(dpp_pkex_peer_mac_override, 0, ETH_ALEN);
dpp_pkex_ephemeral_key_override_len = 0;
dpp_protocol_key_override_len = 0;
#endif /* CONFIG_TESTING_OPTIONS */
#endif /* CONFIG_DPP */