#include <openssl/objects.h>
#include <openssl/evp.h>
#include <openssl/hmac.h>
+#include <openssl/ocsp.h>
#include "ssl_locl.h"
const char tls1_version_str[]="TLSv1" OPENSSL_VERSION_PTEXT;
}
#endif
+ if (s->tlsext_status_type == TLSEXT_STATUSTYPE_ocsp)
+ {
+ int i;
+ long extlen, idlen, itmp;
+ OCSP_RESPID *id;
+
+ idlen = 0;
+ for (i = 0; i < sk_OCSP_RESPID_num(s->tlsext_ocsp_ids); i++)
+ {
+ id = sk_OCSP_RESPID_value(s->tlsext_ocsp_ids, i);
+ itmp = i2d_OCSP_RESPID(id, NULL);
+ if (itmp <= 0)
+ return NULL;
+ idlen += itmp + 2;
+ }
+
+ if (s->tlsext_ocsp_exts)
+ {
+ extlen = i2d_X509_EXTENSIONS(s->tlsext_ocsp_exts, NULL);
+ if (extlen < 0)
+ return NULL;
+ }
+ else
+ extlen = 0;
+
+ if ((long)(limit - ret - 7 - extlen - idlen) < 0) return NULL;
+ s2n(TLSEXT_TYPE_status_request, ret);
+ if (extlen + idlen > 0xFFF0)
+ return NULL;
+ s2n(extlen + idlen + 5, ret);
+ *(ret++) = TLSEXT_STATUSTYPE_ocsp;
+ s2n(idlen, ret);
+ for (i = 0; i < sk_OCSP_RESPID_num(s->tlsext_ocsp_ids); i++)
+ {
+ /* save position of id len */
+ unsigned char *q = ret;
+ id = sk_OCSP_RESPID_value(s->tlsext_ocsp_ids, i);
+ /* skip over id len */
+ ret += 2;
+ itmp = i2d_OCSP_RESPID(id, &ret);
+ /* write id len */
+ s2n(itmp, q);
+ }
+ s2n(extlen, ret);
+ if (extlen > 0)
+ i2d_X509_EXTENSIONS(s->tlsext_ocsp_exts, &ret);
+ }
+
if ((extdatalen = ret-p-2)== 0)
return p;
}
/* Currently the server should not respond with a SupportedCurves extension */
#endif /* OPENSSL_NO_EC */
-
+
if (s->tlsext_ticket_expected
&& !(SSL_get_options(s) & SSL_OP_NO_TICKET))
{
s2n(0,ret);
}
+ if (s->tlsext_status_expected)
+ {
+ if ((long)(limit - ret - 4) < 0) return NULL;
+ s2n(TLSEXT_TYPE_status_request,ret);
+ s2n(0,ret);
+ }
+
#ifdef TLSEXT_TYPE_opaque_prf_input
if (s->s3->server_opaque_prf_input != NULL)
{
unsigned short len;
unsigned char *data = *p;
s->servername_done = 0;
+ s->tlsext_status_type = -1;
if (data >= (d+n-2))
return 1;
}
}
#endif
+ else if (type == TLSEXT_TYPE_status_request
+ && s->ctx->tlsext_status_cb)
+ {
+
+ if (size < 5)
+ {
+ *al = SSL_AD_DECODE_ERROR;
+ return 0;
+ }
+
+ s->tlsext_status_type = *data++;
+ size--;
+ if (s->tlsext_status_type == TLSEXT_STATUSTYPE_ocsp)
+ {
+ const unsigned char *sdata;
+ int dsize;
+ /* Read in responder_id_list */
+ n2s(data,dsize);
+ size -= 2;
+ if (dsize > size )
+ {
+ *al = SSL_AD_DECODE_ERROR;
+ return 0;
+ }
+ while (dsize > 0)
+ {
+ OCSP_RESPID *id;
+ int idsize;
+ if (dsize < 4)
+ {
+ *al = SSL_AD_DECODE_ERROR;
+ return 0;
+ }
+ n2s(data, idsize);
+ dsize -= 2 + idsize;
+ if (dsize < 0)
+ {
+ *al = SSL_AD_DECODE_ERROR;
+ return 0;
+ }
+ sdata = data;
+ data += idsize;
+ id = d2i_OCSP_RESPID(NULL,
+ &sdata, idsize);
+ if (!id)
+ {
+ *al = SSL_AD_DECODE_ERROR;
+ return 0;
+ }
+ if (data != sdata)
+ {
+ OCSP_RESPID_free(id);
+ *al = SSL_AD_DECODE_ERROR;
+ return 0;
+ }
+ if (!s->tlsext_ocsp_ids
+ && !(s->tlsext_ocsp_ids =
+ sk_OCSP_RESPID_new_null()))
+ {
+ OCSP_RESPID_free(id);
+ *al = SSL_AD_INTERNAL_ERROR;
+ return 0;
+ }
+ if (!sk_OCSP_RESPID_push(
+ s->tlsext_ocsp_ids, id))
+ {
+ OCSP_RESPID_free(id);
+ *al = SSL_AD_INTERNAL_ERROR;
+ return 0;
+ }
+ }
+
+ /* Read in request_extensions */
+ n2s(data,dsize);
+ size -= 2;
+ if (dsize > size)
+ {
+ *al = SSL_AD_DECODE_ERROR;
+ return 0;
+ }
+ sdata = data;
+ if (dsize > 0)
+ {
+ s->tlsext_ocsp_exts =
+ d2i_X509_EXTENSIONS(NULL,
+ &sdata, dsize);
+ if (!s->tlsext_ocsp_exts
+ || (data + dsize != sdata))
+ {
+ *al = SSL_AD_DECODE_ERROR;
+ return 0;
+ }
+ }
+ }
+ /* We don't know what to do with any other type
+ * so ignore it.
+ */
+ else
+ s->tlsext_status_type = -1;
+ }
/* session ticket processed earlier */
data+=size;
}
}
#endif
+ else if (type == TLSEXT_TYPE_status_request)
+ {
+ /* MUST be empty and only sent if we've requested
+ * a status request message.
+ */
+ if ((s->tlsext_status_type == -1) || (size > 0))
+ {
+ *al = TLS1_AD_UNSUPPORTED_EXTENSION;
+ return 0;
+ }
+ /* Set flag to expect CertificateStatus message */
+ s->tlsext_status_expected = 1;
+ }
data+=size;
}
}
}
+ /* If we've requested certificate status and we wont get one
+ * tell the callback
+ */
+ if ((s->tlsext_status_type != -1) && !(s->tlsext_status_expected)
+ && s->ctx->tlsext_status_cb)
+ {
+ int r;
+ /* Set resp to NULL, resplen to -1 so callback knows
+ * there is no response.
+ */
+ if (s->tlsext_ocsp_resp)
+ {
+ OPENSSL_free(s->tlsext_ocsp_resp);
+ s->tlsext_ocsp_resp = NULL;
+ }
+ s->tlsext_ocsp_resplen = -1;
+ r = s->ctx->tlsext_status_cb(s, s->ctx->tlsext_status_arg);
+ if (r == 0)
+ {
+ *al = SSL_AD_BAD_CERTIFICATE_STATUS_RESPONSE;
+ return 0;
+ }
+ if (r < 0)
+ {
+ *al = SSL_AD_INTERNAL_ERROR;
+ return 0;
+ }
+ }
+
*p = data;
return 1;
}
else if (s->initial_ctx != NULL && s->initial_ctx->tlsext_servername_callback != 0)
ret = s->initial_ctx->tlsext_servername_callback(s, &al, s->initial_ctx->tlsext_servername_arg);
+ /* If status request then ask callback what to do.
+ * Note: this must be called after servername callbacks in case
+ * the certificate has changed.
+ */
+ if ((s->tlsext_status_type != -1) && s->ctx->tlsext_status_cb)
+ {
+ int r;
+ r = s->ctx->tlsext_status_cb(s, s->ctx->tlsext_status_arg);
+ switch (r)
+ {
+ /* We don't want to send a status request response */
+ case SSL_TLSEXT_ERR_NOACK:
+ s->tlsext_status_expected = 0;
+ break;
+ /* status request response should be sent */
+ case SSL_TLSEXT_ERR_OK:
+ if (s->tlsext_ocsp_resp)
+ s->tlsext_status_expected = 1;
+ else
+ s->tlsext_status_expected = 0;
+ break;
+ /* something bad happened */
+ case SSL_TLSEXT_ERR_ALERT_FATAL:
+ ret = SSL_TLSEXT_ERR_ALERT_FATAL;
+ al = SSL_AD_INTERNAL_ERROR;
+ goto err;
+ }
+ }
+ else
+ s->tlsext_status_expected = 0;
#ifdef TLSEXT_TYPE_opaque_prf_input
{
al = SSL_AD_HANDSHAKE_FAILURE;
}
}
-#endif
+#endif
err:
switch (ret)
{
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