+{
+ return use_certificate_chain_file(ctx, NULL, file);
+}
+
+int SSL_use_certificate_chain_file(SSL *ssl, const char *file)
+{
+ return use_certificate_chain_file(NULL, ssl, file);
+}
+
+static int serverinfo_find_extension(const unsigned char *serverinfo,
+ size_t serverinfo_length,
+ unsigned int extension_type,
+ const unsigned char **extension_data,
+ size_t *extension_length)
+{
+ PACKET pkt, data;
+
+ *extension_data = NULL;
+ *extension_length = 0;
+ if (serverinfo == NULL || serverinfo_length == 0)
+ return -1;
+
+ if (!PACKET_buf_init(&pkt, serverinfo, serverinfo_length))
+ return -1;
+
+ for (;;) {
+ unsigned int type = 0;
+ unsigned long context = 0;
+
+ /* end of serverinfo */
+ if (PACKET_remaining(&pkt) == 0)
+ return 0; /* Extension not found */
+
+ if (!PACKET_get_net_4(&pkt, &context)
+ || !PACKET_get_net_2(&pkt, &type)
+ || !PACKET_get_length_prefixed_2(&pkt, &data))
+ return -1;
+
+ if (type == extension_type) {
+ *extension_data = PACKET_data(&data);
+ *extension_length = PACKET_remaining(&data);;
+ return 1; /* Success */
+ }
+ }
+ /* Unreachable */
+}
+
+static int serverinfoex_srv_parse_cb(SSL *s, unsigned int ext_type,
+ unsigned int context,
+ const unsigned char *in,
+ size_t inlen, X509 *x, size_t chainidx,
+ int *al, void *arg)
+{
+
+ if (inlen != 0) {
+ *al = SSL_AD_DECODE_ERROR;
+ return 0;
+ }
+
+ return 1;
+}
+
+static int serverinfo_srv_parse_cb(SSL *s, unsigned int ext_type,
+ const unsigned char *in,
+ size_t inlen, int *al, void *arg)
+{
+ return serverinfoex_srv_parse_cb(s, ext_type, 0, in, inlen, NULL, 0, al,
+ arg);
+}
+
+static int serverinfoex_srv_add_cb(SSL *s, unsigned int ext_type,
+ unsigned int context,
+ const unsigned char **out,
+ size_t *outlen, X509 *x, size_t chainidx,
+ int *al, void *arg)
+{
+ const unsigned char *serverinfo = NULL;
+ size_t serverinfo_length = 0;
+
+ /* We only support extensions for the first Certificate */
+ if ((context & SSL_EXT_TLS1_3_CERTIFICATE) != 0 && chainidx > 0)
+ return 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 == -1) {
+ *al = SSL_AD_INTERNAL_ERROR;
+ return -1; /* Error */
+ }
+ if (retval == 0)
+ return 0; /* No extension found, don't send extension */
+ return 1; /* Send extension */
+ }
+ return 0; /* No serverinfo data found, don't send
+ * extension */
+}
+
+static int serverinfo_srv_add_cb(SSL *s, unsigned int ext_type,
+ const unsigned char **out, size_t *outlen,
+ int *al, void *arg)
+{
+ return serverinfoex_srv_add_cb(s, ext_type, 0, out, outlen, NULL, 0, al,
+ arg);
+}
+
+/*
+ * 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(unsigned int version,
+ const unsigned char *serverinfo,
+ size_t serverinfo_length, SSL_CTX *ctx)
+{
+ PACKET pkt;
+
+ if (serverinfo == NULL || serverinfo_length == 0)
+ return 0;
+
+ if (version != SSL_SERVERINFOV1 && version != SSL_SERVERINFOV2)
+ return 0;
+
+ if (!PACKET_buf_init(&pkt, serverinfo, serverinfo_length))
+ return 0;
+
+ while (PACKET_remaining(&pkt)) {
+ unsigned long context = 0;
+ unsigned int ext_type = 0;
+ PACKET data;
+
+ if ((version == SSL_SERVERINFOV2 && !PACKET_get_net_4(&pkt, &context))
+ || !PACKET_get_net_2(&pkt, &ext_type)
+ || !PACKET_get_length_prefixed_2(&pkt, &data))
+ return 0;
+
+ if (ctx == NULL)
+ continue;
+
+ /*
+ * The old style custom extensions API could be set separately for
+ * server/client, i.e. you could set one custom extension for a client,
+ * and *for the same extension in the same SSL_CTX* you could set a
+ * custom extension for the server as well. It seems quite weird to be
+ * setting a custom extension for both client and server in a single
+ * SSL_CTX - but theoretically possible. This isn't possible in the
+ * new API. Therefore, if we have V1 serverinfo we use the old API. We
+ * also use the old API even if we have V2 serverinfo but the context
+ * looks like an old style <= TLSv1.2 extension.
+ */
+ if (version == SSL_SERVERINFOV1 || context == SYNTHV1CONTEXT) {
+ if (!SSL_CTX_add_server_custom_ext(ctx, ext_type,
+ serverinfo_srv_add_cb,
+ NULL, NULL,
+ serverinfo_srv_parse_cb,
+ NULL))
+ return 0;
+ } else {
+ if (!SSL_CTX_add_custom_ext(ctx, ext_type, context,
+ serverinfoex_srv_add_cb,
+ NULL, NULL,
+ serverinfoex_srv_parse_cb,
+ NULL))
+ return 0;
+ }
+ }
+
+ return 1;
+}
+
+int SSL_CTX_use_serverinfo_ex(SSL_CTX *ctx, unsigned int version,
+ const unsigned char *serverinfo,
+ size_t serverinfo_length)
+{
+ unsigned char *new_serverinfo;
+
+ if (ctx == NULL || serverinfo == NULL || serverinfo_length == 0) {
+ SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO_EX, ERR_R_PASSED_NULL_PARAMETER);
+ return 0;
+ }
+ if (!serverinfo_process_buffer(version, serverinfo, serverinfo_length,
+ NULL)) {
+ SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO_EX, SSL_R_INVALID_SERVERINFO_DATA);
+ return 0;
+ }
+ if (ctx->cert->key == NULL) {
+ SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO_EX, ERR_R_INTERNAL_ERROR);
+ return 0;
+ }
+ new_serverinfo = OPENSSL_realloc(ctx->cert->key->serverinfo,
+ serverinfo_length);
+ if (new_serverinfo == NULL) {
+ SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO_EX, ERR_R_MALLOC_FAILURE);
+ return 0;
+ }
+ ctx->cert->key->serverinfo = new_serverinfo;
+ 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(version, serverinfo, serverinfo_length,
+ ctx)) {
+ SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO_EX, SSL_R_INVALID_SERVERINFO_DATA);
+ return 0;
+ }
+ return 1;
+}
+
+int SSL_CTX_use_serverinfo(SSL_CTX *ctx, const unsigned char *serverinfo,
+ size_t serverinfo_length)
+{
+ return SSL_CTX_use_serverinfo_ex(ctx, SSL_SERVERINFOV1, serverinfo,
+ serverinfo_length);
+}
+
+int SSL_CTX_use_serverinfo_file(SSL_CTX *ctx, const char *file)
+{
+ unsigned char *serverinfo = NULL;
+ unsigned char *tmp;
+ size_t serverinfo_length = 0;
+ unsigned char *extension = 0;
+ long extension_length = 0;
+ char *name = NULL;
+ char *header = NULL;
+ char namePrefix1[] = "SERVERINFO FOR ";
+ char namePrefix2[] = "SERVERINFOV2 FOR ";
+ int ret = 0;
+ BIO *bin = NULL;
+ size_t num_extensions = 0, contextoff = 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());
+ if (bin == NULL) {
+ SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO_FILE, ERR_R_BUF_LIB);
+ goto end;
+ }
+ if (BIO_read_filename(bin, file) <= 0) {
+ SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO_FILE, ERR_R_SYS_LIB);
+ goto end;
+ }
+
+ for (num_extensions = 0;; num_extensions++) {
+ unsigned int version;
+
+ 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,
+ SSL_R_NO_PEM_EXTENSIONS);
+ goto end;
+ } else /* End of file, we're done */
+ break;
+ }
+ /* Check that PEM name starts with "BEGIN SERVERINFO FOR " */
+ if (strlen(name) < strlen(namePrefix1)) {
+ SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO_FILE, SSL_R_PEM_NAME_TOO_SHORT);
+ goto end;
+ }
+ if (strncmp(name, namePrefix1, strlen(namePrefix1)) == 0) {
+ version = SSL_SERVERINFOV1;
+ } else {
+ if (strlen(name) < strlen(namePrefix2)) {
+ SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO_FILE,
+ SSL_R_PEM_NAME_TOO_SHORT);
+ goto end;
+ }
+ if (strncmp(name, namePrefix2, strlen(namePrefix2)) != 0) {
+ SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO_FILE,
+ SSL_R_PEM_NAME_BAD_PREFIX);
+ goto end;
+ }
+ version = SSL_SERVERINFOV2;
+ }
+ /*
+ * Check that the decoded PEM data is plausible (valid length field)
+ */
+ if (version == SSL_SERVERINFOV1) {
+ /* 4 byte header: 2 bytes type, 2 bytes len */
+ if (extension_length < 4
+ || (extension[2] << 8) + extension[3]
+ != extension_length - 4) {
+ SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO_FILE, SSL_R_BAD_DATA);
+ goto end;
+ }
+ /*
+ * File does not have a context value so we must take account of
+ * this later.
+ */
+ contextoff = 4;
+ } else {
+ /* 8 byte header: 4 bytes context, 2 bytes type, 2 bytes len */
+ if (extension_length < 8
+ || (extension[6] << 8) + extension[7]
+ != extension_length - 8) {
+ SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO_FILE, SSL_R_BAD_DATA);
+ goto end;
+ }
+ }
+ /* Append the decoded extension to the serverinfo buffer */
+ tmp = OPENSSL_realloc(serverinfo, serverinfo_length + extension_length
+ + contextoff);
+ if (tmp == NULL) {
+ SSLerr(SSL_F_SSL_CTX_USE_SERVERINFO_FILE, ERR_R_MALLOC_FAILURE);
+ goto end;
+ }
+ serverinfo = tmp;
+ if (contextoff > 0) {
+ unsigned char *sinfo = serverinfo + serverinfo_length;
+
+ /* We know this only uses the last 2 bytes */
+ sinfo[0] = 0;
+ sinfo[1] = 0;
+ sinfo[2] = (SYNTHV1CONTEXT >> 8) & 0xff;
+ sinfo[3] = SYNTHV1CONTEXT & 0xff;
+ }
+ memcpy(serverinfo + serverinfo_length + contextoff,
+ extension, extension_length);
+ serverinfo_length += extension_length + contextoff;
+
+ OPENSSL_free(name);
+ name = NULL;
+ OPENSSL_free(header);
+ header = NULL;
+ OPENSSL_free(extension);
+ extension = NULL;
+ }
+
+ ret = SSL_CTX_use_serverinfo_ex(ctx, SSL_SERVERINFOV2, 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);
+ BIO_free(bin);
+ return ret;
+}
+
+static int ssl_set_cert_and_key(SSL *ssl, SSL_CTX *ctx, X509 *x509, EVP_PKEY *privatekey,
+ STACK_OF(X509) *chain, int override)
+{
+ int ret = 0;
+ size_t i;
+ int j;
+ int rv;
+ CERT *c = ssl != NULL ? ssl->cert : ctx->cert;
+ STACK_OF(X509) *dup_chain = NULL;
+ EVP_PKEY *pubkey = NULL;
+
+ /* Do all security checks before anything else */
+ rv = ssl_security_cert(ssl, ctx, x509, 0, 1);
+ if (rv != 1) {
+ SSLerr(SSL_F_SSL_SET_CERT_AND_KEY, rv);
+ goto out;
+ }
+ for (j = 0; j < sk_X509_num(chain); j++) {
+ rv = ssl_security_cert(ssl, ctx, sk_X509_value(chain, j), 0, 0);
+ if (rv != 1) {
+ SSLerr(SSL_F_SSL_SET_CERT_AND_KEY, rv);
+ goto out;
+ }
+ }
+
+ pubkey = X509_get_pubkey(x509); /* bumps reference */
+ if (pubkey == NULL)
+ goto out;
+ if (privatekey == NULL) {
+ privatekey = pubkey;
+ } else {
+ /* For RSA, which has no parameters, missing returns 0 */
+ if (EVP_PKEY_missing_parameters(privatekey)) {
+ if (EVP_PKEY_missing_parameters(pubkey)) {
+ /* nobody has parameters? - error */
+ SSLerr(SSL_F_SSL_SET_CERT_AND_KEY, SSL_R_MISSING_PARAMETERS);
+ goto out;
+ } else {
+ /* copy to privatekey from pubkey */
+ EVP_PKEY_copy_parameters(privatekey, pubkey);
+ }
+ } else if (EVP_PKEY_missing_parameters(pubkey)) {
+ /* copy to pubkey from privatekey */
+ EVP_PKEY_copy_parameters(pubkey, privatekey);
+ } /* else both have parameters */
+
+ /* Copied from ssl_set_cert/pkey */
+#ifndef OPENSSL_NO_RSA
+ if ((EVP_PKEY_id(privatekey) == EVP_PKEY_RSA) &&
+ ((RSA_flags(EVP_PKEY_get0_RSA(privatekey)) & RSA_METHOD_FLAG_NO_CHECK)))
+ /* no-op */ ;
+ else