/*
- * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 1995-2017 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the OpenSSL license (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
#include <openssl/rand.h>
#define SSL3_NUM_CIPHERS OSSL_NELEM(ssl3_ciphers)
+#define SSL3_NUM_SCSVS OSSL_NELEM(ssl3_scsvs)
+
+/* TLSv1.3 downgrade protection sentinel values */
+const unsigned char tls11downgrade[] = {
+ 0x44, 0x4f, 0x57, 0x4e, 0x47, 0x52, 0x44, 0x00
+};
+const unsigned char tls12downgrade[] = {
+ 0x44, 0x4f, 0x57, 0x4e, 0x47, 0x52, 0x44, 0x01
+};
/*
* The list of available ciphers, mostly organized into the following
* EC
* PSK
* SRP (within that: RSA EC PSK)
- * Cipher families: Chacha/poly, Camellila, Gost, IDEA, SEED
+ * Cipher families: Chacha/poly, Camellia, Gost, IDEA, SEED
* Weak ciphers
*/
static SSL_CIPHER ssl3_ciphers[] = {
1,
TLS1_3_TXT_AES_128_GCM_SHA256,
TLS1_3_CK_AES_128_GCM_SHA256,
- SSL_kRSA,
- SSL_aRSA,
+ 0, 0,
SSL_AES128GCM,
SSL_AEAD,
TLS1_3_VERSION, TLS1_3_VERSION,
+ SSL_kANY,
+ SSL_aANY,
+ SSL_HIGH,
+ SSL_HANDSHAKE_MAC_SHA256,
+ 128,
+ 128,
+ },
+ {
+ 1,
+ TLS1_3_TXT_AES_256_GCM_SHA384,
+ TLS1_3_CK_AES_256_GCM_SHA384,
+ SSL_kANY,
+ SSL_aANY,
+ SSL_AES256GCM,
+ SSL_AEAD,
+ TLS1_3_VERSION, TLS1_3_VERSION,
0, 0,
SSL_HIGH,
- SSL_HANDSHAKE_MAC_SHA256 | TLS1_PRF_SHA256,
+ SSL_HANDSHAKE_MAC_SHA384,
+ 256,
+ 256,
+ },
+#if !defined(OPENSSL_NO_CHACHA) && !defined(OPENSSL_NO_POLY1305)
+ {
+ 1,
+ TLS1_3_TXT_CHACHA20_POLY1305_SHA256,
+ TLS1_3_CK_CHACHA20_POLY1305_SHA256,
+ SSL_kANY,
+ SSL_aANY,
+ SSL_CHACHA20POLY1305,
+ SSL_AEAD,
+ TLS1_3_VERSION, TLS1_3_VERSION,
+ 0, 0,
+ SSL_HIGH,
+ SSL_HANDSHAKE_MAC_SHA256,
+ 256,
+ 256,
+ },
+#endif
+ {
+ 1,
+ TLS1_3_TXT_AES_128_CCM_SHA256,
+ TLS1_3_CK_AES_128_CCM_SHA256,
+ SSL_kANY,
+ SSL_aANY,
+ SSL_AES128CCM,
+ SSL_AEAD,
+ TLS1_3_VERSION, TLS1_3_VERSION,
+ 0, 0,
+ SSL_NOT_DEFAULT | SSL_HIGH,
+ SSL_HANDSHAKE_MAC_SHA256,
+ 128,
+ 128,
+ },
+ {
+ 1,
+ TLS1_3_TXT_AES_128_CCM_8_SHA256,
+ TLS1_3_CK_AES_128_CCM_8_SHA256,
+ SSL_kANY,
+ SSL_aANY,
+ SSL_AES128CCM8,
+ SSL_AEAD,
+ TLS1_3_VERSION, TLS1_3_VERSION,
+ 0, 0,
+ SSL_NOT_DEFAULT | SSL_HIGH,
+ SSL_HANDSHAKE_MAC_SHA256,
128,
128,
},
SSL_aECDSA,
SSL_eNULL,
SSL_SHA1,
- SSL3_VERSION, TLS1_2_VERSION,
+ TLS1_VERSION, TLS1_2_VERSION,
DTLS1_BAD_VER, DTLS1_2_VERSION,
SSL_STRONG_NONE | SSL_FIPS,
SSL_HANDSHAKE_MAC_DEFAULT | TLS1_PRF,
SSL_aECDSA,
SSL_3DES,
SSL_SHA1,
- SSL3_VERSION, TLS1_2_VERSION,
+ TLS1_VERSION, TLS1_2_VERSION,
DTLS1_BAD_VER, DTLS1_2_VERSION,
SSL_NOT_DEFAULT | SSL_MEDIUM | SSL_FIPS,
SSL_HANDSHAKE_MAC_DEFAULT | TLS1_PRF,
SSL_aECDSA,
SSL_AES128,
SSL_SHA1,
- SSL3_VERSION, TLS1_2_VERSION,
+ TLS1_VERSION, TLS1_2_VERSION,
DTLS1_BAD_VER, DTLS1_2_VERSION,
SSL_HIGH | SSL_FIPS,
SSL_HANDSHAKE_MAC_DEFAULT | TLS1_PRF,
SSL_aECDSA,
SSL_AES256,
SSL_SHA1,
- SSL3_VERSION, TLS1_2_VERSION,
+ TLS1_VERSION, TLS1_2_VERSION,
DTLS1_BAD_VER, DTLS1_2_VERSION,
SSL_HIGH | SSL_FIPS,
SSL_HANDSHAKE_MAC_DEFAULT | TLS1_PRF,
SSL_aRSA,
SSL_eNULL,
SSL_SHA1,
- SSL3_VERSION, TLS1_2_VERSION,
+ TLS1_VERSION, TLS1_2_VERSION,
DTLS1_BAD_VER, DTLS1_2_VERSION,
SSL_STRONG_NONE | SSL_FIPS,
SSL_HANDSHAKE_MAC_DEFAULT | TLS1_PRF,
SSL_aRSA,
SSL_3DES,
SSL_SHA1,
- SSL3_VERSION, TLS1_2_VERSION,
+ TLS1_VERSION, TLS1_2_VERSION,
DTLS1_BAD_VER, DTLS1_2_VERSION,
SSL_NOT_DEFAULT | SSL_MEDIUM | SSL_FIPS,
SSL_HANDSHAKE_MAC_DEFAULT | TLS1_PRF,
SSL_aRSA,
SSL_AES128,
SSL_SHA1,
- SSL3_VERSION, TLS1_2_VERSION,
+ TLS1_VERSION, TLS1_2_VERSION,
DTLS1_BAD_VER, DTLS1_2_VERSION,
SSL_HIGH | SSL_FIPS,
SSL_HANDSHAKE_MAC_DEFAULT | TLS1_PRF,
SSL_aRSA,
SSL_AES256,
SSL_SHA1,
- SSL3_VERSION, TLS1_2_VERSION,
+ TLS1_VERSION, TLS1_2_VERSION,
DTLS1_BAD_VER, DTLS1_2_VERSION,
SSL_HIGH | SSL_FIPS,
SSL_HANDSHAKE_MAC_DEFAULT | TLS1_PRF,
SSL_aNULL,
SSL_eNULL,
SSL_SHA1,
- SSL3_VERSION, TLS1_2_VERSION,
+ TLS1_VERSION, TLS1_2_VERSION,
DTLS1_BAD_VER, DTLS1_2_VERSION,
SSL_STRONG_NONE | SSL_FIPS,
SSL_HANDSHAKE_MAC_DEFAULT | TLS1_PRF,
SSL_aNULL,
SSL_3DES,
SSL_SHA1,
- SSL3_VERSION, TLS1_2_VERSION,
+ TLS1_VERSION, TLS1_2_VERSION,
DTLS1_BAD_VER, DTLS1_2_VERSION,
SSL_NOT_DEFAULT | SSL_MEDIUM | SSL_FIPS,
SSL_HANDSHAKE_MAC_DEFAULT | TLS1_PRF,
SSL_aNULL,
SSL_AES128,
SSL_SHA1,
- SSL3_VERSION, TLS1_2_VERSION,
+ TLS1_VERSION, TLS1_2_VERSION,
DTLS1_BAD_VER, DTLS1_2_VERSION,
SSL_NOT_DEFAULT | SSL_HIGH | SSL_FIPS,
SSL_HANDSHAKE_MAC_DEFAULT | TLS1_PRF,
SSL_aNULL,
SSL_AES256,
SSL_SHA1,
- SSL3_VERSION, TLS1_2_VERSION,
+ TLS1_VERSION, TLS1_2_VERSION,
DTLS1_BAD_VER, DTLS1_2_VERSION,
SSL_NOT_DEFAULT | SSL_HIGH | SSL_FIPS,
SSL_HANDSHAKE_MAC_DEFAULT | TLS1_PRF,
SSL_aPSK,
SSL_3DES,
SSL_SHA1,
- SSL3_VERSION, TLS1_2_VERSION,
+ TLS1_VERSION, TLS1_2_VERSION,
DTLS1_BAD_VER, DTLS1_2_VERSION,
SSL_NOT_DEFAULT | SSL_MEDIUM | SSL_FIPS,
SSL_HANDSHAKE_MAC_DEFAULT | TLS1_PRF,
SSL_aPSK,
SSL_AES128,
SSL_SHA1,
- SSL3_VERSION, TLS1_2_VERSION,
+ TLS1_VERSION, TLS1_2_VERSION,
DTLS1_BAD_VER, DTLS1_2_VERSION,
SSL_HIGH | SSL_FIPS,
SSL_HANDSHAKE_MAC_DEFAULT | TLS1_PRF,
SSL_aPSK,
SSL_AES256,
SSL_SHA1,
- SSL3_VERSION, TLS1_2_VERSION,
+ TLS1_VERSION, TLS1_2_VERSION,
DTLS1_BAD_VER, DTLS1_2_VERSION,
SSL_HIGH | SSL_FIPS,
SSL_HANDSHAKE_MAC_DEFAULT | TLS1_PRF,
SSL_aPSK,
SSL_eNULL,
SSL_SHA1,
- SSL3_VERSION, TLS1_2_VERSION,
+ TLS1_VERSION, TLS1_2_VERSION,
DTLS1_BAD_VER, DTLS1_2_VERSION,
SSL_STRONG_NONE | SSL_FIPS,
SSL_HANDSHAKE_MAC_DEFAULT | TLS1_PRF,
SSL_aPSK,
SSL_RC4,
SSL_SHA1,
- SSL3_VERSION, TLS1_2_VERSION,
+ TLS1_VERSION, TLS1_2_VERSION,
0, 0,
SSL_NOT_DEFAULT | SSL_MEDIUM,
SSL_HANDSHAKE_MAC_DEFAULT | TLS1_PRF,
SSL_aNULL,
SSL_RC4,
SSL_SHA1,
- SSL3_VERSION, TLS1_2_VERSION,
+ TLS1_VERSION, TLS1_2_VERSION,
0, 0,
SSL_NOT_DEFAULT | SSL_MEDIUM,
SSL_HANDSHAKE_MAC_DEFAULT | TLS1_PRF,
SSL_aECDSA,
SSL_RC4,
SSL_SHA1,
- SSL3_VERSION, TLS1_2_VERSION,
+ TLS1_VERSION, TLS1_2_VERSION,
0, 0,
SSL_NOT_DEFAULT | SSL_MEDIUM,
SSL_HANDSHAKE_MAC_DEFAULT | TLS1_PRF,
SSL_aRSA,
SSL_RC4,
SSL_SHA1,
- SSL3_VERSION, TLS1_2_VERSION,
+ TLS1_VERSION, TLS1_2_VERSION,
0, 0,
SSL_NOT_DEFAULT | SSL_MEDIUM,
SSL_HANDSHAKE_MAC_DEFAULT | TLS1_PRF,
};
+/*
+ * The list of known Signalling Cipher-Suite Value "ciphers", non-valid
+ * values stuffed into the ciphers field of the wire protocol for signalling
+ * purposes.
+ */
+static SSL_CIPHER ssl3_scsvs[] = {
+ {
+ 0,
+ "TLS_EMPTY_RENEGOTIATION_INFO_SCSV",
+ SSL3_CK_SCSV,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ },
+ {
+ 0,
+ "TLS_FALLBACK_SCSV",
+ SSL3_CK_FALLBACK_SCSV,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ },
+};
+
static int cipher_compare(const void *a, const void *b)
{
const SSL_CIPHER *ap = (const SSL_CIPHER *)a;
void ssl_sort_cipher_list(void)
{
- qsort(ssl3_ciphers, OSSL_NELEM(ssl3_ciphers), sizeof ssl3_ciphers[0],
+ qsort(ssl3_ciphers, SSL3_NUM_CIPHERS, sizeof ssl3_ciphers[0],
cipher_compare);
+ qsort(ssl3_scsvs, SSL3_NUM_SCSVS, sizeof ssl3_scsvs[0], cipher_compare);
}
const SSL3_ENC_METHOD SSLv3_enc_data = {
if (!SSL_SRP_CTX_init(s))
goto err;
#endif
- s->method->ssl_clear(s);
- return (1);
+
+ if (!s->method->ssl_clear(s))
+ return 0;
+
+ return 1;
err:
- return (0);
+ return 0;
}
void ssl3_free(SSL *s)
s->s3->tmp.pkey = NULL;
#endif
- sk_X509_NAME_pop_free(s->s3->tmp.ca_names, X509_NAME_free);
+ OPENSSL_free(s->s3->tmp.ctype);
+ sk_X509_NAME_pop_free(s->s3->tmp.peer_ca_names, X509_NAME_free);
OPENSSL_free(s->s3->tmp.ciphers_raw);
OPENSSL_clear_free(s->s3->tmp.pms, s->s3->tmp.pmslen);
OPENSSL_free(s->s3->tmp.peer_sigalgs);
s->s3 = NULL;
}
-void ssl3_clear(SSL *s)
+int ssl3_clear(SSL *s)
{
ssl3_cleanup_key_block(s);
- sk_X509_NAME_pop_free(s->s3->tmp.ca_names, X509_NAME_free);
+ OPENSSL_free(s->s3->tmp.ctype);
+ sk_X509_NAME_pop_free(s->s3->tmp.peer_ca_names, X509_NAME_free);
OPENSSL_free(s->s3->tmp.ciphers_raw);
OPENSSL_clear_free(s->s3->tmp.pms, s->s3->tmp.pmslen);
OPENSSL_free(s->s3->tmp.peer_sigalgs);
/* NULL/zero-out everything in the s3 struct */
memset(s->s3, 0, sizeof(*s->s3));
- ssl_free_wbio_buffer(s);
+ if (!ssl_free_wbio_buffer(s))
+ return 0;
s->version = SSL3_VERSION;
s->ext.npn = NULL;
s->ext.npn_len = 0;
#endif
+
+ return 1;
}
#ifndef OPENSSL_NO_SRP
case SSL_CTRL_SET_CURRENT_CERT:
if (larg == SSL_CERT_SET_SERVER) {
- CERT_PKEY *cpk;
const SSL_CIPHER *cipher;
if (!s->server)
return 0;
cipher = s->s3->tmp.new_cipher;
- if (!cipher)
+ if (cipher == NULL)
return 0;
/*
* No certificate for unauthenticated ciphersuites or using SRP
*/
if (cipher->algorithm_auth & (SSL_aNULL | SSL_aSRP))
return 2;
- cpk = ssl_get_server_send_pkey(s);
- if (!cpk)
+ if (s->s3->tmp.cert == NULL)
return 0;
- s->cert->key = cpk;
+ s->cert->key = s->s3->tmp.cert;
return 1;
}
return ssl_cert_set_current(s->cert, larg);
const unsigned char **pctype = parg;
if (s->server || !s->s3->tmp.cert_req)
return 0;
- if (s->cert->ctypes) {
- if (pctype)
- *pctype = s->cert->ctypes;
- return (int)s->cert->ctype_num;
- }
if (pctype)
- *pctype = (unsigned char *)s->s3->tmp.ctype;
- return s->s3->tmp.ctype_num;
+ *pctype = s->s3->tmp.ctype;
+ return s->s3->tmp.ctype_len;
}
case SSL_CTRL_SET_CLIENT_CERT_TYPES:
return ssl_cert_set_cert_store(s->cert, parg, 1, larg);
case SSL_CTRL_GET_PEER_SIGNATURE_NID:
- if (SSL_USE_SIGALGS(s)) {
- if (s->session) {
- const EVP_MD *sig;
- sig = s->s3->tmp.peer_md;
- if (sig) {
- *(int *)parg = EVP_MD_type(sig);
- return 1;
- }
- }
- return 0;
- }
- /* Might want to do something here for other versions */
- else
+ if (s->s3->tmp.peer_sigalg == NULL)
return 0;
+ *(int *)parg = s->s3->tmp.peer_sigalg->hash;
+ return 1;
case SSL_CTRL_GET_SERVER_TMP_KEY:
#if !defined(OPENSSL_NO_DH) || !defined(OPENSSL_NO_EC)
ctx->cert->dh_tmp = pkdh;
return 1;
}
- /*
- * break;
- */
case SSL_CTRL_SET_TMP_DH_CB:
{
SSLerr(SSL_F_SSL3_CTX_CTRL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
&ctx->ext.supportedgroups_len,
&nid, 1);
}
- /* break; */
#endif /* !OPENSSL_NO_EC */
case SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG:
ctx->ext.servername_arg = parg;
case SSL_CTRL_SET_TLS_EXT_SRP_PASSWORD:
ctx->srp_ctx.SRP_give_srp_client_pwd_callback =
srp_password_from_info_cb;
- ctx->srp_ctx.info = parg;
+ if (ctx->srp_ctx.info != NULL)
+ OPENSSL_free(ctx->srp_ctx.info);
+ if ((ctx->srp_ctx.info = BUF_strdup((char *)parg)) == NULL) {
+ SSLerr(SSL_F_SSL3_CTX_CTRL, ERR_R_INTERNAL_ERROR);
+ return 0;
+ }
break;
case SSL_CTRL_SET_SRP_ARG:
ctx->srp_ctx.srp_Mask |= SSL_kSRP;
return (1);
}
-/*
- * This function needs to check if the ciphers required are actually
- * available
- */
-const SSL_CIPHER *ssl3_get_cipher_by_char(const unsigned char *p)
+const SSL_CIPHER *ssl3_get_cipher_by_id(uint32_t id)
{
SSL_CIPHER c;
const SSL_CIPHER *cp;
- uint32_t id;
- id = 0x03000000 | ((uint32_t)p[0] << 8L) | (uint32_t)p[1];
c.id = id;
cp = OBJ_bsearch_ssl_cipher_id(&c, ssl3_ciphers, SSL3_NUM_CIPHERS);
- return cp;
+ if (cp != NULL)
+ return cp;
+ return OBJ_bsearch_ssl_cipher_id(&c, ssl3_scsvs, SSL3_NUM_SCSVS);
+}
+
+/*
+ * This function needs to check if the ciphers required are actually
+ * available
+ */
+const SSL_CIPHER *ssl3_get_cipher_by_char(const unsigned char *p)
+{
+ return ssl3_get_cipher_by_id(SSL3_CK_CIPHERSUITE_FLAG
+ | ((uint32_t)p[0] << 8L)
+ | (uint32_t)p[1]);
}
int ssl3_put_cipher_by_char(const SSL_CIPHER *c, WPACKET *pkt, size_t *len)
{
- if ((c->id & 0xff000000) != 0x03000000) {
+ if ((c->id & 0xff000000) != SSL3_CK_CIPHERSUITE_FLAG) {
*len = 0;
return 1;
}
const SSL_CIPHER *c, *ret = NULL;
STACK_OF(SSL_CIPHER) *prio, *allow;
int i, ii, ok;
- unsigned long alg_k, alg_a, mask_k, mask_a;
+ unsigned long alg_k = 0, alg_a = 0, mask_k, mask_a;
/* Let's see which ciphers we can support */
-#if 0
/*
* Do not set the compare functions, because this may lead to a
* reordering by "id". We want to keep the original ordering. We may pay
* a price in performance during sk_SSL_CIPHER_find(), but would have to
* pay with the price of sk_SSL_CIPHER_dup().
*/
- sk_SSL_CIPHER_set_cmp_func(srvr, ssl_cipher_ptr_id_cmp);
- sk_SSL_CIPHER_set_cmp_func(clnt, ssl_cipher_ptr_id_cmp);
-#endif
#ifdef CIPHER_DEBUG
fprintf(stderr, "Server has %d from %p:\n", sk_SSL_CIPHER_num(srvr),
(DTLS_VERSION_LT(s->version, c->min_dtls) ||
DTLS_VERSION_GT(s->version, c->max_dtls)))
continue;
-
- mask_k = s->s3->tmp.mask_k;
- mask_a = s->s3->tmp.mask_a;
+ /*
+ * Since TLS 1.3 ciphersuites can be used with any auth or
+ * key exchange scheme skip tests.
+ */
+ if (!SSL_IS_TLS13(s)) {
+ mask_k = s->s3->tmp.mask_k;
+ mask_a = s->s3->tmp.mask_a;
#ifndef OPENSSL_NO_SRP
- if (s->srp_ctx.srp_Mask & SSL_kSRP) {
- mask_k |= SSL_kSRP;
- mask_a |= SSL_aSRP;
- }
+ if (s->srp_ctx.srp_Mask & SSL_kSRP) {
+ mask_k |= SSL_kSRP;
+ mask_a |= SSL_aSRP;
+ }
#endif
- alg_k = c->algorithm_mkey;
- alg_a = c->algorithm_auth;
+ alg_k = c->algorithm_mkey;
+ alg_a = c->algorithm_auth;
#ifndef OPENSSL_NO_PSK
- /* with PSK there must be server callback set */
- if ((alg_k & SSL_PSK) && s->psk_server_callback == NULL)
- continue;
+ /* with PSK there must be server callback set */
+ if ((alg_k & SSL_PSK) && s->psk_server_callback == NULL)
+ continue;
#endif /* OPENSSL_NO_PSK */
- ok = (alg_k & mask_k) && (alg_a & mask_a);
+ ok = (alg_k & mask_k) && (alg_a & mask_a);
#ifdef CIPHER_DEBUG
- fprintf(stderr, "%d:[%08lX:%08lX:%08lX:%08lX]%p:%s\n", ok, alg_k,
- alg_a, mask_k, mask_a, (void *)c, c->name);
+ fprintf(stderr, "%d:[%08lX:%08lX:%08lX:%08lX]%p:%s\n", ok, alg_k,
+ alg_a, mask_k, mask_a, (void *)c, c->name);
#endif
#ifndef OPENSSL_NO_EC
- /*
- * if we are considering an ECC cipher suite that uses an ephemeral
- * EC key check it
- */
- if (alg_k & SSL_kECDHE)
- ok = ok && tls1_check_ec_tmp_key(s, c->id);
+ /*
+ * if we are considering an ECC cipher suite that uses an ephemeral
+ * EC key check it
+ */
+ if (alg_k & SSL_kECDHE)
+ ok = ok && tls1_check_ec_tmp_key(s, c->id);
#endif /* OPENSSL_NO_EC */
- if (!ok)
- continue;
+ if (!ok)
+ continue;
+ }
ii = sk_SSL_CIPHER_find(allow, c);
if (ii >= 0) {
/* Check security callback permits this cipher */
uint32_t alg_k, alg_a = 0;
/* If we have custom certificate types set, use them */
- if (s->cert->ctypes) {
- return WPACKET_memcpy(pkt, s->cert->ctypes, s->cert->ctype_num);
- }
+ if (s->cert->ctype)
+ return WPACKET_memcpy(pkt, s->cert->ctype, s->cert->ctype_len);
/* Get mask of algorithms disabled by signature list */
ssl_set_sig_mask(&alg_a, s, SSL_SECOP_SIGALG_MASK);
static int ssl3_set_req_cert_type(CERT *c, const unsigned char *p, size_t len)
{
- OPENSSL_free(c->ctypes);
- c->ctypes = NULL;
- if (!p || !len)
+ OPENSSL_free(c->ctype);
+ c->ctype = NULL;
+ c->ctype_len = 0;
+ if (p == NULL || len == 0)
return 1;
if (len > 0xff)
return 0;
- c->ctypes = OPENSSL_malloc(len);
- if (c->ctypes == NULL)
+ c->ctype = OPENSSL_memdup(p, len);
+ if (c->ctype == NULL)
return 0;
- memcpy(c->ctypes, p, len);
- c->ctype_num = len;
+ c->ctype_len = len;
return 1;
}
{
clear_sys_error();
if (s->s3->renegotiate)
- ssl3_renegotiate_check(s);
+ ssl3_renegotiate_check(s, 0);
return s->method->ssl_write_bytes(s, SSL3_RT_APPLICATION_DATA, buf, len,
written);
clear_sys_error();
if (s->s3->renegotiate)
- ssl3_renegotiate_check(s);
+ ssl3_renegotiate_check(s, 0);
s->s3->in_read_app_data = 1;
ret =
s->method->ssl_read_bytes(s, SSL3_RT_APPLICATION_DATA, NULL, buf, len,
return (1);
}
-int ssl3_renegotiate_check(SSL *s)
+/*
+ * Check if we are waiting to do a renegotiation and if so whether now is a
+ * good time to do it. If |initok| is true then we are being called from inside
+ * the state machine so ignore the result of SSL_in_init(s). Otherwise we
+ * should not do a renegotiation if SSL_in_init(s) is true. Returns 1 if we
+ * should do a renegotiation now and sets up the state machine for it. Otherwise
+ * returns 0.
+ */
+int ssl3_renegotiate_check(SSL *s, int initok)
{
int ret = 0;
if (s->s3->renegotiate) {
if (!RECORD_LAYER_read_pending(&s->rlayer)
&& !RECORD_LAYER_write_pending(&s->rlayer)
- && !SSL_in_init(s)) {
+ && (initok || !SSL_in_init(s))) {
/*
* if we are the server, and we have sent a 'RENEGOTIATE'
* message, we need to set the state machine into the renegotiate
ret = 1;
}
}
- return (ret);
+ return ret;
}
/*
* Fill a ClientRandom or ServerRandom field of length len. Returns <= 0 on
* failure, 1 on success.
*/
-int ssl_fill_hello_random(SSL *s, int server, unsigned char *result, size_t len)
+int ssl_fill_hello_random(SSL *s, int server, unsigned char *result, size_t len,
+ DOWNGRADE dgrd)
{
- int send_time = 0;
+ int send_time = 0, ret;
if (len < 4)
return 0;
unsigned char *p = result;
l2n(Time, p);
/* TODO(size_t): Convert this */
- return RAND_bytes(p, (int)(len - 4));
- } else
- return RAND_bytes(result, (int)len);
+ ret = RAND_bytes(p, (int)(len - 4));
+ } else {
+ ret = RAND_bytes(result, (int)len);
+ }
+#ifndef OPENSSL_NO_TLS13DOWNGRADE
+ if (ret) {
+ if (!ossl_assert(sizeof(tls11downgrade) < len)
+ || !ossl_assert(sizeof(tls12downgrade) < len))
+ return 0;
+ if (dgrd == DOWNGRADE_TO_1_2)
+ memcpy(result + len - sizeof(tls12downgrade), tls12downgrade,
+ sizeof(tls12downgrade));
+ else if (dgrd == DOWNGRADE_TO_1_1)
+ memcpy(result + len - sizeof(tls11downgrade), tls11downgrade,
+ sizeof(tls11downgrade));
+ }
+#endif
+ return ret;
}
int ssl_generate_master_secret(SSL *s, unsigned char *pms, size_t pmslen,
if (gensecret) {
if (SSL_IS_TLS13(s)) {
/*
- * TODO(TLS1.3): For now we just use the default early_secret, this
- * will need to change later when other early_secrets will be
- * possible.
+ * If we are resuming then we already generated the early secret
+ * when we created the ClientHello, so don't recreate it.
*/
- rv = tls13_generate_early_secret(s, NULL, 0)
- && tls13_generate_handshake_secret(s, pms, pmslen);
- OPENSSL_free(pms);
+ if (!s->hit)
+ rv = tls13_generate_secret(s, ssl_handshake_md(s), NULL, NULL,
+ 0,
+ (unsigned char *)&s->early_secret);
+ else
+ rv = 1;
+
+ rv = rv && tls13_generate_handshake_secret(s, pms, pmslen);
} else {
- /* Generate master secret and discard premaster */
- rv = ssl_generate_master_secret(s, pms, pmslen, 1);
+ rv = ssl_generate_master_secret(s, pms, pmslen, 0);
}
- pms = NULL;
} else {
/* Save premaster secret */
s->s3->tmp.pms = pms;
projects / openssl.git / blobdiff