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Don't generate new challenge on bad response.

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This commit is contained in:
Fredrik Thulin 2011-03-14 12:44:57 +01:00
parent 68cdb39132
commit 71d68484f9
1 changed files with 7 additions and 2 deletions
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9
pam_yubico.c
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@ -503,10 +503,15 @@ do_challenge_response(struct cfg *cfg, const char *username)
&response_len))
goto out;
yubikey_hex_encode(response_hex, (char *)response, response_len > 20 ? 20 : response_len);
if (strcmp(response_hex, expected_response) == 0)
if (strcmp(response_hex, expected_response) == 0) {
ret = PAM_SUCCESS;
} else {
D(("Unexpected C/R response : %s", response_hex));
ret = PAM_AUTH_ERR;
goto out;
}
/* Ok, got a good validation. Generate a new challenge */
D(("Got the expected response, generating new challenge."));
if (generate_challenge(challenge_hex, 64) < 0)
goto out;