static int
scram_start (Gsasl_session * sctx, void **mech_data, int plus)
{
struct scram_server_state *state;
char buf[MAX (SNONCE_ENTROPY_BYTES, DEFAULT_SALT_BYTES)];
const char *p;
int rc;
state = (struct scram_server_state *) calloc (sizeof (*state), 1);
if (state == NULL)
return GSASL_MALLOC_ERROR;
state->plus = plus;
rc = gsasl_nonce (buf, SNONCE_ENTROPY_BYTES);
if (rc != GSASL_OK)
goto end;
rc = gsasl_base64_to (buf, SNONCE_ENTROPY_BYTES, &state->snonce, NULL);
if (rc != GSASL_OK)
goto end;
rc = gsasl_nonce (buf, DEFAULT_SALT_BYTES);
if (rc != GSASL_OK)
goto end;
rc = gsasl_base64_to (buf, DEFAULT_SALT_BYTES, &state->sf.salt, NULL);
if (rc != GSASL_OK)
goto end;
p = gsasl_property_get (sctx, GSASL_CB_TLS_UNIQUE);
if (plus && !p)
{
rc = GSASL_NO_CB_TLS_UNIQUE;
goto end;
}
if (p)
{
rc = gsasl_base64_from (p, strlen (p), &state->cbtlsunique,
&state->cbtlsuniquelen);
if (rc != GSASL_OK)
goto end;
}
*mech_data = state;
return GSASL_OK;
end:
free (state->sf.salt);
free (state->snonce);
free (state);
return rc;
}
int
_gsasl_digest_md5_server_start (Gsasl_session * sctx, void **mech_data)
{
_Gsasl_digest_md5_server_state *state;
char nonce[NONCE_ENTROPY_BYTES];
char *p;
int rc;
rc = gsasl_nonce (nonce, NONCE_ENTROPY_BYTES);
if (rc != GSASL_OK)
return rc;
rc = gsasl_base64_to (nonce, NONCE_ENTROPY_BYTES, &p, NULL);
if (rc != GSASL_OK)
return rc;
state = calloc (1, sizeof (*state));
if (state == NULL)
{
free (p);
return GSASL_MALLOC_ERROR;
}
state->challenge.qops = DIGEST_MD5_QOP_AUTH;
state->challenge.ciphers = 0;
state->challenge.nonce = p;
state->challenge.utf8 = 1;
*mech_data = state;
return GSASL_OK;
}
