static int ssl_set_cert(CERT *c, X509 *x509);
static int ssl_set_pkey(CERT *c, EVP_PKEY *pkey);
-#ifndef OPENSSL_NO_TLSEXT
-static int ssl_set_authz(CERT *c, unsigned char *authz,
- size_t authz_length);
-#endif
int SSL_use_certificate(SSL *ssl, X509 *x)
{
if (x == NULL)
X509_free(c->pkeys[i].x509);
CRYPTO_add(&x->references,1,CRYPTO_LOCK_X509);
c->pkeys[i].x509=x;
-#ifndef OPENSSL_NO_TLSEXT
- /* Free the old authz data, if it exists. */
- if (c->pkeys[i].authz != NULL)
- {
- OPENSSL_free(c->pkeys[i].authz);
- c->pkeys[i].authz = NULL;
- c->pkeys[i].authz_length = 0;
- }
-#endif
c->key= &(c->pkeys[i]);
c->valid=0;
#endif
#ifndef OPENSSL_NO_TLSEXT
-/* authz_validate returns true iff authz is well formed, i.e. that it meets the
- * wire format as documented in the CERT_PKEY structure and that there are no
- * duplicate entries. */
-static char authz_validate(const unsigned char *authz, size_t length)
+static int serverinfo_find_extension(const unsigned char *serverinfo,
+ size_t serverinfo_length,
+ unsigned short extension_type,
+ const unsigned char **extension_data,
+ unsigned short *extension_length)
{
- unsigned char types_seen_bitmap[32];
+ *extension_data = NULL;
+ *extension_length = 0;
+ if (serverinfo == NULL || serverinfo_length == 0)
+ return 0;
+ for (;;)
+ {
+ unsigned short type = 0; /* uint16 */
+ unsigned short len = 0; /* uint16 */
+
+ /* end of serverinfo */
+ if (serverinfo_length == 0)
+ return -1; /* Extension not found */
- if (!authz)
- return 1;
+ /* read 2-byte type field */
+ if (serverinfo_length < 2)
+ return 0; /* Error */
+ type = (serverinfo[0] << 8) + serverinfo[1];
+ serverinfo += 2;
+ serverinfo_length -= 2;
- memset(types_seen_bitmap, 0, sizeof(types_seen_bitmap));
+ /* read 2-byte len field */
+ if (serverinfo_length < 2)
+ return 0; /* Error */
+ len = (serverinfo[0] << 8) + serverinfo[1];
+ serverinfo += 2;
+ serverinfo_length -= 2;
+ if (len > serverinfo_length)
+ return 0; /* Error */
+
+ if (type == extension_type)
+ {
+ *extension_data = serverinfo;
+ *extension_length = len;
+ return 1; /* Success */
+ }
+
+ serverinfo += len;
+ serverinfo_length -= len;
+ }
+ return 0; /* Error */
+ }
+
+static int serverinfo_srv_first_cb(SSL *s, unsigned short ext_type,
+ const unsigned char *in,
+ unsigned short inlen, int *al,
+ void *arg)
+ {
+ if (inlen != 0)
+ {
+ *al = SSL_AD_DECODE_ERROR;
+ return 0;
+ }
+ 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 *serverinfo = NULL;
+ size_t serverinfo_length = 0;
+
+ /* Is there serverinfo data for the chosen server cert? */
+ if ((ssl_get_server_cert_serverinfo(s, &serverinfo,
+ &serverinfo_length)) != 0)
+ {
+ /* Find the relevant extension from the serverinfo */
+ int retval = serverinfo_find_extension(serverinfo, serverinfo_length,
+ ext_type, out, outlen);
+ if (retval == 0)
+ return 0; /* Error */
+ if (retval == -1)
+ return -1; /* No extension found, don't send extension */
+ return 1; /* Send extension */
+ }
+ return -1; /* No serverinfo data found, don't send extension */
+ }
+
+/* With a NULL context, this function just checks that the serverinfo data
+ parses correctly. With a non-NULL context, it registers callbacks for
+ the included extensions. */
+static int serverinfo_process_buffer(const unsigned char *serverinfo,
+ size_t serverinfo_length, SSL_CTX *ctx)
+ {
+ if (serverinfo == NULL || serverinfo_length == 0)
+ return 0;
for (;;)
{
- unsigned char type, byte, bit;
- unsigned short len;
+ unsigned short ext_type = 0; /* uint16 */
+ unsigned short len = 0; /* uint16 */
- if (!length)
+ /* end of serverinfo */
+ if (serverinfo_length == 0)
return 1;
- type = *(authz++);
- length--;
+ /* read 2-byte type field */
+ if (serverinfo_length < 2)
+ return 0;
+ /* FIXME: check for types we understand explicitly? */
- byte = type / 8;
- bit = type & 7;
- if (types_seen_bitmap[byte] & (1 << bit))
+ /* Register callbacks for extensions */
+ ext_type = (serverinfo[0] << 8) + serverinfo[1];
+ if (ctx && !SSL_CTX_set_custom_srv_ext(ctx, ext_type,
+ serverinfo_srv_first_cb,
+ serverinfo_srv_second_cb, NULL))
return 0;
- types_seen_bitmap[byte] |= (1 << bit);
- if (length < 2)
+ serverinfo += 2;
+ serverinfo_length -= 2;
+
+ /* read 2-byte len field */
+ if (serverinfo_length < 2)
return 0;
- len = ((unsigned short) authz[0]) << 8 |
- ((unsigned short) authz[1]);
- authz += 2;
- length -= 2;
+ len = (serverinfo[0] << 8) + serverinfo[1];
+ serverinfo += 2;
+ serverinfo_length -= 2;
- if (length < len)
+ if (len > serverinfo_length)
return 0;
- authz += len;
- length -= len;
+ serverinfo += len;
+ serverinfo_length -= len;
}
}
-static int ssl_set_authz(CERT *c, unsigned char *authz, size_t authz_length)
+int SSL_CTX_use_serverinfo(SSL_CTX *ctx, const unsigned char *serverinfo,
+ size_t serverinfo_length)
{
- CERT_PKEY *current_key = c->key;
- if (current_key == NULL)
- return 0;
- if (!authz_validate(authz, authz_length))
+ if (ctx == NULL || serverinfo == NULL || serverinfo_length == 0)
{
- SSLerr(SSL_F_SSL_SET_AUTHZ,SSL_R_INVALID_AUTHZ_DATA);
- return(0);
+ SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO,ERR_R_PASSED_NULL_PARAMETER);
+ return 0;
}
- current_key->authz = OPENSSL_realloc(current_key->authz, authz_length);
- current_key->authz_length = authz_length;
- memcpy(current_key->authz, authz, authz_length);
- return 1;
- }
-
-int SSL_CTX_use_authz(SSL_CTX *ctx, unsigned char *authz,
- size_t authz_length)
- {
- if (authz == NULL)
+ if (!serverinfo_process_buffer(serverinfo, serverinfo_length, NULL))
{
- SSLerr(SSL_F_SSL_CTX_USE_AUTHZ,ERR_R_PASSED_NULL_PARAMETER);
+ SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO,SSL_R_INVALID_SERVERINFO_DATA);
return 0;
}
if (!ssl_cert_inst(&ctx->cert))
{
- SSLerr(SSL_F_SSL_CTX_USE_AUTHZ,ERR_R_MALLOC_FAILURE);
+ SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO,ERR_R_MALLOC_FAILURE);
+ return 0;
+ }
+ if (ctx->cert->key == NULL)
+ {
+ SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO,ERR_R_INTERNAL_ERROR);
+ return 0;
+ }
+ ctx->cert->key->serverinfo = OPENSSL_realloc(ctx->cert->key->serverinfo,
+ serverinfo_length);
+ if (ctx->cert->key->serverinfo == NULL)
+ {
+ SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO,ERR_R_MALLOC_FAILURE);
return 0;
}
- return ssl_set_authz(ctx->cert, authz, authz_length);
+ memcpy(ctx->cert->key->serverinfo, serverinfo, serverinfo_length);
+ ctx->cert->key->serverinfo_length = serverinfo_length;
+
+ /* Now that the serverinfo is validated and stored, go ahead and
+ * register callbacks. */
+ if (!serverinfo_process_buffer(serverinfo, serverinfo_length, ctx))
+ {
+ SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO,SSL_R_INVALID_SERVERINFO_DATA);
+ return 0;
+ }
+ return 1;
}
-int SSL_use_authz(SSL *ssl, unsigned char *authz, size_t authz_length)
+#ifndef OPENSSL_NO_STDIO
+int SSL_CTX_use_serverinfo_file(SSL_CTX *ctx, const char *file)
{
- if (authz == NULL)
+ unsigned char *serverinfo = NULL;
+ size_t serverinfo_length = 0;
+ unsigned char* extension = 0;
+ long extension_length = 0;
+ char* name = NULL;
+ char* header = NULL;
+ int ret = 0;
+ BIO *bin = NULL;
+ size_t num_extensions = 0;
+
+ if (ctx == NULL || file == NULL)
+ {
+ SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO_FILE,ERR_R_PASSED_NULL_PARAMETER);
+ goto end;
+ }
+
+ bin = BIO_new(BIO_s_file_internal());
+ if (bin == NULL)
{
- SSLerr(SSL_F_SSL_USE_AUTHZ,ERR_R_PASSED_NULL_PARAMETER);
- return 0;
+ SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO_FILE, ERR_R_BUF_LIB);
+ goto end;
}
- if (!ssl_cert_inst(&ssl->cert))
+ if (BIO_read_filename(bin, file) <= 0)
{
- SSLerr(SSL_F_SSL_USE_AUTHZ,ERR_R_MALLOC_FAILURE);
- return 0;
+ SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO_FILE, ERR_R_SYS_LIB);
+ goto end;
+ }
+
+ for (num_extensions=0;; num_extensions++)
+ {
+ if (PEM_read_bio(bin, &name, &header, &extension, &extension_length) == 0)
+ {
+ /* There must be at least one extension in this file */
+ if (num_extensions == 0)
+ {
+ SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO_FILE, ERR_R_PEM_LIB);
+ goto end;
+ }
+ else /* End of file, we're done */
+ break;
+ }
+ /* Check that the decoded PEM data is plausible (valid length field) */
+ if (extension_length < 4 || (extension[2] << 8) + extension[3] != extension_length - 4)
+ {
+ SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO_FILE, ERR_R_PEM_LIB);
+ goto end;
+ }
+ /* Append the decoded extension to the serverinfo buffer */
+ serverinfo = OPENSSL_realloc(serverinfo, serverinfo_length + extension_length);
+ if (serverinfo == NULL)
+ {
+ SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO_FILE, ERR_R_MALLOC_FAILURE);
+ goto end;
+ }
+ memcpy(serverinfo + serverinfo_length, extension, extension_length);
+ serverinfo_length += extension_length;
+
+ OPENSSL_free(name); name = NULL;
+ OPENSSL_free(header); header = NULL;
+ OPENSSL_free(extension); extension = NULL;
}
- return ssl_set_authz(ssl->cert, authz, authz_length);
+
+ ret = SSL_CTX_use_serverinfo(ctx, serverinfo, serverinfo_length);
+end:
+ /* SSL_CTX_use_serverinfo makes a local copy of the serverinfo. */
+ OPENSSL_free(name);
+ OPENSSL_free(header);
+ OPENSSL_free(extension);
+ OPENSSL_free(serverinfo);
+ if (bin != NULL)
+ BIO_free(bin);
+ return ret;
}
+#endif /* OPENSSL_NO_STDIO */
#endif /* OPENSSL_NO_TLSEXT */
projects / openssl.git / blobdiff