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EAP-MSCHAPv2 server: Check ms_funcs results more consistently 

This makes the code more consistent by checking the somewhat theoretical
error cases more consistently (CID 72685).

Signed-off-by: Jouni Malinen <j@w1.fi>
This commit is contained in:
Jouni Malinen 2014-10-11 19:31:48 +03:00
parent 8e3e0b3f57
commit 8c5dfc79a5
1 changed files with 10 additions and 7 deletions
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17
src/eap_server/eap_server_mschapv2.c
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@ -414,13 +414,16 @@ static void eap_mschapv2_process_response(struct eap_sm *sm,
}
pw_hash = pw_hash_buf;
}
generate_authenticator_response_pwhash(
pw_hash, peer_challenge, data->auth_challenge,
username, username_len, nt_response,
data->auth_response);
hash_nt_password_hash(pw_hash, pw_hash_hash);
get_master_key(pw_hash_hash, nt_response, data->master_key);
if (generate_authenticator_response_pwhash(
pw_hash, peer_challenge, data->auth_challenge,
username, username_len, nt_response,
data->auth_response) < 0 ||
hash_nt_password_hash(pw_hash, pw_hash_hash) < 0 ||
get_master_key(pw_hash_hash, nt_response,
data->master_key)) {
data->state = FAILURE;
return;
}
data->master_key_valid = 1;
wpa_hexdump_key(MSG_DEBUG, "EAP-MSCHAPV2: Derived Master Key",
data->master_key, MSCHAPV2_KEY_LEN);