static int init_npn(SSL *s, unsigned int context);
#endif
static int init_alpn(SSL *s, unsigned int context);
-static int final_alpn(SSL *s, unsigned int context, int sent, int *al);
static int init_sig_algs(SSL *s, unsigned int context);
static int init_certificate_authorities(SSL *s, unsigned int context);
static EXT_RETURN tls_construct_certificate_authorities(SSL *s, WPACKET *pkt,
/*
* Definitions of all built-in extensions. NOTE: Changes in the number or order
- * of these extensions should be mirrored with equivalent changes to the
+ * of these extensions should be mirrored with equivalent changes to the
* indexes ( TLSEXT_IDX_* ) defined in ssl_locl.h.
* Each extension has an initialiser, a client and
* server side parser and a finaliser. The initialiser is called (if the
* extension is relevant to a particular protocol or protocol version.
*
* TODO(TLS1.3): Make sure we have a test to check the consistency of these
+ *
+ * NOTE: WebSphere Application Server 7+ cannot handle empty extensions at
+ * the end, keep these extensions before signature_algorithm.
*/
#define INVALID_EXTENSION { 0x10000, 0, NULL, NULL, NULL, NULL, NULL, NULL }
static const EXTENSION_DEFINITION ext_defs[] = {
tls_parse_stoc_session_ticket, tls_construct_stoc_session_ticket,
tls_construct_ctos_session_ticket, NULL
},
- {
- TLSEXT_TYPE_signature_algorithms,
- SSL_EXT_CLIENT_HELLO | SSL_EXT_TLS1_3_CERTIFICATE_REQUEST,
- init_sig_algs, tls_parse_ctos_sig_algs,
- tls_parse_ctos_sig_algs, tls_construct_ctos_sig_algs,
- tls_construct_ctos_sig_algs, final_sig_algs
- },
#ifndef OPENSSL_NO_OCSP
{
TLSEXT_TYPE_status_request,
SSL_EXT_CLIENT_HELLO | SSL_EXT_TLS1_2_SERVER_HELLO
| SSL_EXT_TLS1_3_ENCRYPTED_EXTENSIONS,
init_alpn, tls_parse_ctos_alpn, tls_parse_stoc_alpn,
- tls_construct_stoc_alpn, tls_construct_ctos_alpn, final_alpn
+ tls_construct_stoc_alpn, tls_construct_ctos_alpn, NULL
},
#ifndef OPENSSL_NO_SRTP
{
init_ems, tls_parse_ctos_ems, tls_parse_stoc_ems,
tls_construct_stoc_ems, tls_construct_ctos_ems, final_ems
},
+ {
+ TLSEXT_TYPE_signature_algorithms,
+ SSL_EXT_CLIENT_HELLO | SSL_EXT_TLS1_3_CERTIFICATE_REQUEST,
+ init_sig_algs, tls_parse_ctos_sig_algs,
+ tls_parse_ctos_sig_algs, tls_construct_ctos_sig_algs,
+ tls_construct_ctos_sig_algs, final_sig_algs
+ },
{
TLSEXT_TYPE_supported_versions,
SSL_EXT_CLIENT_HELLO | SSL_EXT_TLS_IMPLEMENTATION_ONLY
return 0;
}
+ i = 0;
while (PACKET_remaining(&extensions) > 0) {
unsigned int type, idx;
PACKET extension;
&& type != TLSEXT_TYPE_renegotiate
&& type != TLSEXT_TYPE_signed_certificate_timestamp
&& (s->ext.extflags[idx] & SSL_EXT_FLAG_SENT) == 0) {
- SSLerr(SSL_F_TLS_COLLECT_EXTENSIONS, SSL_R_BAD_EXTENSION);
+ SSLerr(SSL_F_TLS_COLLECT_EXTENSIONS, SSL_R_UNSOLICITED_EXTENSION);
*al = SSL_AD_UNSUPPORTED_EXTENSION;
goto err;
}
thisex->data = extension;
thisex->present = 1;
thisex->type = type;
+ thisex->received_order = i++;
+ if (s->ext.debug_cb)
+ s->ext.debug_cb(s, !s->server, thisex->type,
+ PACKET_data(&thisex->data),
+ PACKET_remaining(&thisex->data),
+ s->ext.debug_arg);
}
}
if (!currext->present)
return 1;
- if (s->ext.debug_cb)
- s->ext.debug_cb(s, !s->server, currext->type,
- PACKET_data(&currext->data),
- PACKET_remaining(&currext->data),
- s->ext.debug_arg);
-
/* Skip if we've already parsed this extension */
if (currext->parsed)
return 1;
/* Add custom extensions first */
if ((context & SSL_EXT_CLIENT_HELLO) != 0) {
- /* On the server side with initiase during ClientHello parsing */
+ /* On the server side with initialise during ClientHello parsing */
custom_ext_init(&s->cert->custext);
}
if (!custom_ext_add(s, context, pkt, x, chainidx, max_version, &tmpal)) {
return 1;
}
-static int final_alpn(SSL *s, unsigned int context, int sent, int *al)
-{
- const unsigned char *selected = NULL;
- unsigned char selected_len = 0;
-
- if (!s->server)
- return 1;
-
- if (s->ctx->ext.alpn_select_cb != NULL && s->s3->alpn_proposed != NULL) {
- int r = s->ctx->ext.alpn_select_cb(s, &selected, &selected_len,
- s->s3->alpn_proposed,
- (unsigned int)s->s3->alpn_proposed_len,
- s->ctx->ext.alpn_select_cb_arg);
-
- if (r == SSL_TLSEXT_ERR_OK) {
- OPENSSL_free(s->s3->alpn_selected);
- s->s3->alpn_selected = OPENSSL_memdup(selected, selected_len);
- if (s->s3->alpn_selected == NULL) {
- *al = SSL_AD_INTERNAL_ERROR;
- return 0;
- }
- s->s3->alpn_selected_len = selected_len;
-#ifndef OPENSSL_NO_NEXTPROTONEG
- /* ALPN takes precedence over NPN. */
- s->s3->npn_seen = 0;
-#endif
- } else if (r == SSL_TLSEXT_ERR_NOACK) {
- /* Behave as if no callback was present. */
- return 1;
- } else {
- *al = SSL_AD_NO_APPLICATION_PROTOCOL;
- return 0;
- }
- }
-
- return 1;
-}
-
static int init_sig_algs(SSL *s, unsigned int context)
{
/* Clear any signature algorithms extension received */
static int final_sig_algs(SSL *s, unsigned int context, int sent, int *al)
{
- if (!sent && SSL_IS_TLS13(s)) {
+ if (!sent && SSL_IS_TLS13(s) && !s->hit) {
*al = TLS13_AD_MISSING_EXTENSION;
SSLerr(SSL_F_FINAL_SIG_ALGS, SSL_R_MISSING_SIGALGS_EXTENSION);
return 0;
&& (!s->hit
|| (s->ext.psk_kex_mode & TLSEXT_KEX_MODE_FLAG_KE) == 0)) {
/* Nothing left we can do - just fail */
- *al = SSL_AD_HANDSHAKE_FAILURE;
+ *al = SSL_AD_MISSING_EXTENSION;
SSLerr(SSL_F_FINAL_KEY_SHARE, SSL_R_NO_SUITABLE_KEY_SHARE);
return 0;
}
int tls_psk_do_binder(SSL *s, const EVP_MD *md, const unsigned char *msgstart,
size_t binderoffset, const unsigned char *binderin,
- unsigned char *binderout,
- SSL_SESSION *sess, int sign)
+ unsigned char *binderout, SSL_SESSION *sess, int sign,
+ int external)
{
EVP_PKEY *mackey = NULL;
EVP_MD_CTX *mctx = NULL;
unsigned char hash[EVP_MAX_MD_SIZE], binderkey[EVP_MAX_MD_SIZE];
unsigned char finishedkey[EVP_MAX_MD_SIZE], tmpbinder[EVP_MAX_MD_SIZE];
+ unsigned char tmppsk[EVP_MAX_MD_SIZE];
+ unsigned char *early_secret, *psk;
const char resumption_label[] = "res binder";
- size_t bindersize, hashsize = EVP_MD_size(md);
+ const char external_label[] = "ext binder";
+ const char nonce_label[] = "resumption";
+ const char *label;
+ size_t bindersize, labelsize, hashsize = EVP_MD_size(md);
int ret = -1;
- /* Generate the early_secret */
- if (!tls13_generate_secret(s, md, NULL, sess->master_key,
- sess->master_key_length,
- (unsigned char *)&s->early_secret)) {
+ if (external) {
+ label = external_label;
+ labelsize = sizeof(external_label) - 1;
+ } else {
+ label = resumption_label;
+ labelsize = sizeof(resumption_label) - 1;
+ }
+
+ if (sess->master_key_length != hashsize) {
+ SSLerr(SSL_F_TLS_PSK_DO_BINDER, SSL_R_BAD_PSK);
+ goto err;
+ }
+
+ if (external) {
+ psk = sess->master_key;
+ } else {
+ psk = tmppsk;
+ if (!tls13_hkdf_expand(s, md, sess->master_key,
+ (const unsigned char *)nonce_label,
+ sizeof(nonce_label) - 1, sess->ext.tick_nonce,
+ sess->ext.tick_nonce_len, psk, hashsize)) {
+ SSLerr(SSL_F_TLS_PSK_DO_BINDER, ERR_R_INTERNAL_ERROR);
+ goto err;
+ }
+ }
+
+ /*
+ * Generate the early_secret. On the server side we've selected a PSK to
+ * resume with (internal or external) so we always do this. On the client
+ * side we do this for a non-external (i.e. resumption) PSK so that it
+ * is in place for sending early data. For client side external PSK we
+ * generate it but store it away for later use.
+ */
+ if (s->server || !external)
+ early_secret = (unsigned char *)s->early_secret;
+ else
+ early_secret = (unsigned char *)sess->early_secret;
+ if (!tls13_generate_secret(s, md, NULL, psk, hashsize, early_secret)) {
SSLerr(SSL_F_TLS_PSK_DO_BINDER, ERR_R_INTERNAL_ERROR);
goto err;
}
}
/* Generate the binder key */
- if (!tls13_hkdf_expand(s, md, s->early_secret,
- (unsigned char *)resumption_label,
- sizeof(resumption_label) - 1, hash, binderkey,
- hashsize)) {
+ if (!tls13_hkdf_expand(s, md, early_secret, (unsigned char *)label,
+ labelsize, hash, hashsize, binderkey, hashsize)) {
SSLerr(SSL_F_TLS_PSK_DO_BINDER, ERR_R_INTERNAL_ERROR);
goto err;
}
projects / openssl.git / blobdiff