}
static int serverinfo_srv_first_cb(SSL *s, unsigned short ext_type,
- const unsigned char *in,
- unsigned short inlen, int *al,
- void *arg)
+ const unsigned char *in,
+ unsigned short inlen, int *al,
+ void *arg)
{
+ size_t i = 0;
if (inlen != 0)
{
*al = SSL_AD_DECODE_ERROR;
return 0;
}
+ //if already in list, error out
+ for (i = 0; i < s->s3->serverinfo_client_tlsext_custom_types_count; i++)
+ {
+ if (s->s3->serverinfo_client_tlsext_custom_types[i] == ext_type)
+ {
+ *al = SSL_AD_DECODE_ERROR;
+ return 0;
+ }
+ }
+ s->s3->serverinfo_client_tlsext_custom_types_count++;
+ s->s3->serverinfo_client_tlsext_custom_types = OPENSSL_realloc(
+ s->s3->serverinfo_client_tlsext_custom_types,
+ s->s3->serverinfo_client_tlsext_custom_types_count * 2);
+ if (s->s3->serverinfo_client_tlsext_custom_types == NULL)
+ {
+ s->s3->serverinfo_client_tlsext_custom_types_count = 0;
+ *al = TLS1_AD_INTERNAL_ERROR;
+ return 0;
+ }
+ s->s3->serverinfo_client_tlsext_custom_types[
+ s->s3->serverinfo_client_tlsext_custom_types_count - 1] = ext_type;
+
return 1;
}
static int serverinfo_srv_second_cb(SSL *s, unsigned short ext_type,
- const unsigned char **out, unsigned short *outlen,
- void *arg)
+ const unsigned char **out, unsigned short *outlen,
+ int *al, void *arg)
{
const unsigned char *serverinfo = NULL;
size_t serverinfo_length = 0;
+ size_t i = 0;
+ unsigned int match = 0;
+ /* Did the client send a TLS extension for this type? */
+ for (i = 0; i < s->s3->serverinfo_client_tlsext_custom_types_count; i++)
+ {
+ if (s->s3->serverinfo_client_tlsext_custom_types[i] == ext_type)
+ {
+ match = 1;
+ break;
+ }
+ }
+ if (!match)
+ {
+ //extension not sent by client...don't send extension
+ return -1;
+ }
/* Is there serverinfo data for the chosen server cert? */
if ((ssl_get_server_cert_serverinfo(s, &serverinfo,
- &serverinfo_length)) != 0)
+ &serverinfo_length)) != 0)
{
/* Find the relevant extension from the serverinfo */
int retval = serverinfo_find_extension(serverinfo, serverinfo_length,
- ext_type, out, outlen);
+ ext_type, out, outlen);
if (retval == 0)
return 0; /* Error */
if (retval == -1)