Reorganize local header files

[thirdparty/openssl.git] / ssl / statem / extensions_clnt.c

diff --git a/ssl/statem/extensions_clnt.c b/ssl/statem/extensions_clnt.c
index 979954ff76ca3e7cc3b8ddf13c31189dd52e7337..75fecdeaa650cbbdd931a0f30fd8ef272be0c63b 100644 (file)
--- a/ssl/statem/extensions_clnt.c
+++ b/ssl/statem/extensions_clnt.c
@@ -8,9 +8,9 @@
  */
 
 #include <openssl/ocsp.h>
-#include "../ssl_locl.h"
+#include "../ssl_local.h"
 #include "internal/cryptlib.h"
-#include "statem_locl.h"
+#include "statem_local.h"
 
 EXT_RETURN tls_construct_ctos_renegotiate(SSL *s, WPACKET *pkt,
                                           unsigned int context, X509 *x,
@@ -113,11 +113,13 @@ EXT_RETURN tls_construct_ctos_srp(SSL *s, WPACKET *pkt, unsigned int context,
 #endif
 
 #ifndef OPENSSL_NO_EC
-static int use_ecc(SSL *s)
+static int use_ecc(SSL *s, int max_version)
 {
     int i, end, ret = 0;
     unsigned long alg_k, alg_a;
     STACK_OF(SSL_CIPHER) *cipher_stack = NULL;
+    const uint16_t *pgroups = NULL;
+    size_t num_groups, j;
 
     /* See if we support any ECC ciphersuites */
     if (s->version == SSL3_VERSION)
@@ -137,9 +139,21 @@ static int use_ecc(SSL *s)
             break;
         }
     }
-
     sk_SSL_CIPHER_free(cipher_stack);
-    return ret;
+    if (!ret)
+        return 0;
+
+    /* Check we have at least one EC supported group */
+    tls1_get_supported_groups(s, &pgroups, &num_groups);
+    for (j = 0; j < num_groups; j++) {
+        uint16_t ctmp = pgroups[j];
+
+        if (tls_valid_group(s, ctmp, max_version)
+                && tls_group_allowed(s, ctmp, SSL_SECOP_CURVE_SUPPORTED))
+            return 1;
+    }
+
+    return 0;
 }
 
 EXT_RETURN tls_construct_ctos_ec_pt_formats(SSL *s, WPACKET *pkt,
@@ -148,8 +162,15 @@ EXT_RETURN tls_construct_ctos_ec_pt_formats(SSL *s, WPACKET *pkt,
 {
     const unsigned char *pformats;
     size_t num_formats;
+    int reason, min_version, max_version;
 
-    if (!use_ecc(s))
+    reason = ssl_get_min_max_version(s, &min_version, &max_version, NULL);
+    if (reason != 0) {
+        SSLfatal(s, SSL_AD_INTERNAL_ERROR,
+                 SSL_F_TLS_CONSTRUCT_CTOS_EC_PT_FORMATS, reason);
+        return EXT_RETURN_FAIL;
+    }
+    if (!use_ecc(s, max_version))
         return EXT_RETURN_NOT_SENT;
 
     /* Add TLS extension ECPointFormats to the ClientHello message */
@@ -167,43 +188,59 @@ EXT_RETURN tls_construct_ctos_ec_pt_formats(SSL *s, WPACKET *pkt,
 
     return EXT_RETURN_SENT;
 }
+#endif
 
+#if !defined(OPENSSL_NO_DH) || !defined(OPENSSL_NO_EC)
 EXT_RETURN tls_construct_ctos_supported_groups(SSL *s, WPACKET *pkt,
                                                unsigned int context, X509 *x,
                                                size_t chainidx)
 {
     const uint16_t *pgroups = NULL;
     size_t num_groups = 0, i;
+    int min_version, max_version, reason;
 
-    if (!use_ecc(s))
+    reason = ssl_get_min_max_version(s, &min_version, &max_version, NULL);
+    if (reason != 0) {
+        SSLfatal(s, SSL_AD_INTERNAL_ERROR,
+                 SSL_F_TLS_CONSTRUCT_CTOS_SUPPORTED_GROUPS, reason);
+        return EXT_RETURN_FAIL;
+    }
+
+#if defined(OPENSSL_NO_EC)
+    if (max_version < TLS1_3_VERSION)
+        return EXT_RETURN_NOT_SENT;
+#else
+    if (!use_ecc(s, max_version) && max_version < TLS1_3_VERSION)
         return EXT_RETURN_NOT_SENT;
+#endif
 
     /*
      * Add TLS extension supported_groups to the ClientHello message
      */
-    /* TODO(TLS1.3): Add support for DHE groups */
     tls1_get_supported_groups(s, &pgroups, &num_groups);
 
     if (!WPACKET_put_bytes_u16(pkt, TLSEXT_TYPE_supported_groups)
                /* Sub-packet for supported_groups extension */
             || !WPACKET_start_sub_packet_u16(pkt)
-            || !WPACKET_start_sub_packet_u16(pkt)) {
+            || !WPACKET_start_sub_packet_u16(pkt)
+            || !WPACKET_set_flags(pkt, WPACKET_FLAGS_NON_ZERO_LENGTH)) {
         SSLfatal(s, SSL_AD_INTERNAL_ERROR,
                  SSL_F_TLS_CONSTRUCT_CTOS_SUPPORTED_GROUPS,
                  ERR_R_INTERNAL_ERROR);
         return EXT_RETURN_FAIL;
     }
-    /* Copy curve ID if supported */
+    /* Copy group ID if supported */
     for (i = 0; i < num_groups; i++) {
         uint16_t ctmp = pgroups[i];
 
-        if (tls_curve_allowed(s, ctmp, SSL_SECOP_CURVE_SUPPORTED)) {
+        if (tls_valid_group(s, ctmp, max_version)
+                && tls_group_allowed(s, ctmp, SSL_SECOP_CURVE_SUPPORTED)) {
             if (!WPACKET_put_bytes_u16(pkt, ctmp)) {
-                    SSLfatal(s, SSL_AD_INTERNAL_ERROR,
-                             SSL_F_TLS_CONSTRUCT_CTOS_SUPPORTED_GROUPS,
-                             ERR_R_INTERNAL_ERROR);
-                    return EXT_RETURN_FAIL;
-                }
+                SSLfatal(s, SSL_AD_INTERNAL_ERROR,
+                         SSL_F_TLS_CONSTRUCT_CTOS_SUPPORTED_GROUPS,
+                         ERR_R_INTERNAL_ERROR);
+                return EXT_RETURN_FAIL;
+            }
         }
     }
     if (!WPACKET_close(pkt) || !WPACKET_close(pkt)) {
@@ -674,7 +711,7 @@ EXT_RETURN tls_construct_ctos_key_share(SSL *s, WPACKET *pkt,
     } else {
         for (i = 0; i < num_groups; i++) {
 
-            if (!tls_curve_allowed(s, pgroups[i], SSL_SECOP_CURVE_SUPPORTED))
+            if (!tls_group_allowed(s, pgroups[i], SSL_SECOP_CURVE_SUPPORTED))
                 continue;
 
             curve_id = pgroups[i];
@@ -1374,19 +1411,19 @@ int tls_parse_stoc_ec_pt_formats(SSL *s, PACKET *pkt, unsigned int context,
             return 0;
         }
 
-        s->session->ext.ecpointformats_len = 0;
-        OPENSSL_free(s->session->ext.ecpointformats);
-        s->session->ext.ecpointformats = OPENSSL_malloc(ecpointformats_len);
-        if (s->session->ext.ecpointformats == NULL) {
+        s->ext.peer_ecpointformats_len = 0;
+        OPENSSL_free(s->ext.peer_ecpointformats);
+        s->ext.peer_ecpointformats = OPENSSL_malloc(ecpointformats_len);
+        if (s->ext.peer_ecpointformats == NULL) {
             SSLfatal(s, SSL_AD_INTERNAL_ERROR,
                      SSL_F_TLS_PARSE_STOC_EC_PT_FORMATS, ERR_R_INTERNAL_ERROR);
             return 0;
         }
 
-        s->session->ext.ecpointformats_len = ecpointformats_len;
+        s->ext.peer_ecpointformats_len = ecpointformats_len;
 
         if (!PACKET_copy_bytes(&ecptformatlist,
-                               s->session->ext.ecpointformats,
+                               s->ext.peer_ecpointformats,
                                ecpointformats_len)) {
             SSLfatal(s, SSL_AD_INTERNAL_ERROR,
                      SSL_F_TLS_PARSE_STOC_EC_PT_FORMATS, ERR_R_INTERNAL_ERROR);
@@ -1834,7 +1871,7 @@ int tls_parse_stoc_key_share(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
                 break;
         }
         if (i >= num_groups
-                || !tls_curve_allowed(s, group_id, SSL_SECOP_CURVE_SUPPORTED)) {
+                || !tls_group_allowed(s, group_id, SSL_SECOP_CURVE_SUPPORTED)) {
             SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER,
                      SSL_F_TLS_PARSE_STOC_KEY_SHARE, SSL_R_BAD_KEY_SHARE);
             return 0;
@@ -1863,8 +1900,8 @@ int tls_parse_stoc_key_share(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
         return 0;
     }
 
-    skey = ssl_generate_pkey(ckey);
-    if (skey == NULL) {
+    skey = EVP_PKEY_new();
+    if (skey == NULL || EVP_PKEY_copy_parameters(skey, ckey) <= 0) {
         SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_PARSE_STOC_KEY_SHARE,
                  ERR_R_MALLOC_FAILURE);
         return 0;