tls1_change_cipher_state,
tls1_final_finish_mac,
TLS1_FINISH_MAC_LENGTH,
- tls1_cert_verify_mac,
TLS_MD_CLIENT_FINISH_CONST, TLS_MD_CLIENT_FINISH_CONST_SIZE,
TLS_MD_SERVER_FINISH_CONST, TLS_MD_SERVER_FINISH_CONST_SIZE,
tls1_alert_code,
tls1_change_cipher_state,
tls1_final_finish_mac,
TLS1_FINISH_MAC_LENGTH,
- tls1_cert_verify_mac,
TLS_MD_CLIENT_FINISH_CONST, TLS_MD_CLIENT_FINISH_CONST_SIZE,
TLS_MD_SERVER_FINISH_CONST, TLS_MD_SERVER_FINISH_CONST_SIZE,
tls1_alert_code,
tls1_change_cipher_state,
tls1_final_finish_mac,
TLS1_FINISH_MAC_LENGTH,
- tls1_cert_verify_mac,
TLS_MD_CLIENT_FINISH_CONST, TLS_MD_CLIENT_FINISH_CONST_SIZE,
TLS_MD_SERVER_FINISH_CONST, TLS_MD_SERVER_FINISH_CONST_SIZE,
tls1_alert_code,
void tls1_clear(SSL *s)
{
ssl3_clear(s);
- s->version = s->method->version;
+ if (s->method->version == TLS_ANY_VERSION)
+ s->version = TLS_MAX_VERSION;
+ else
+ s->version = s->method->version;
}
#ifndef OPENSSL_NO_EC
TLSEXT_ECPOINTFORMAT_ansiX962_compressed_char2
};
-/* The client's default curves / the server's 'auto' curves. */
-static const unsigned char eccurves_auto[] = {
+/* The default curves */
+static const unsigned char eccurves_default[] = {
/* Prefer P-256 which has the fastest and most secure implementations. */
0, 23, /* secp256r1 (23) */
/* Other >= 256-bit prime curves. */
pcurveslen = s->tlsext_ellipticcurvelist_length;
}
if (!*pcurves) {
- if (!s->server || (s->cert && s->cert->ecdh_tmp_auto)) {
- *pcurves = eccurves_auto;
- pcurveslen = sizeof(eccurves_auto);
- } else {
- *pcurves = eccurves_all;
- pcurveslen = sizeof(eccurves_all);
- }
+ *pcurves = eccurves_default;
+ pcurveslen = sizeof(eccurves_default);
}
}
}
/*-
- * Return |nmatch|th shared curve or NID_undef if there is no match.
- * For nmatch == -1, return number of matches
+ * For nmatch >= 0, return the NID of the |nmatch|th shared curve or NID_undef
+ * if there is no match.
+ * For nmatch == -1, return number of matches
* For nmatch == -2, return the NID of the curve to use for
* an EC tmp key, or NID_undef if there is no match.
*/
*/
unsigned long dup_list = 0;
clist = OPENSSL_malloc(ncurves * 2);
- if (!clist)
+ if (clist == NULL)
return 0;
for (i = 0, p = clist; i < ncurves; i++) {
unsigned long idmask;
unsigned char comp_id, curve_id[2];
EVP_PKEY *pkey;
int rv;
- pkey = X509_get_pubkey(x);
+ pkey = X509_get0_pubkey(x);
if (!pkey)
return 0;
/* If not EC nothing to do */
- if (pkey->type != EVP_PKEY_EC) {
- EVP_PKEY_free(pkey);
+ if (pkey->type != EVP_PKEY_EC)
return 1;
- }
rv = tls1_set_ec_id(curve_id, &comp_id, pkey->pkey.ec);
- EVP_PKEY_free(pkey);
if (!rv)
return 0;
/*
}
# ifndef OPENSSL_NO_EC
-/* Check EC temporary key is compatible with client extensions */
+/*
+ * tls1_check_ec_tmp_key - Check EC temporary key compatiblity
+ * @s: SSL connection
+ * @cid: Cipher ID we're considering using
+ *
+ * Checks that the kECDHE cipher suite we're considering using
+ * is compatible with the client extensions.
+ *
+ * Returns 0 when the cipher can't be used or 1 when it can.
+ */
int tls1_check_ec_tmp_key(SSL *s, unsigned long cid)
{
- unsigned char curve_id[2];
- EC_KEY *ec = s->cert->ecdh_tmp;
# ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
/* Allow any curve: not just those peer supports */
if (s->cert->cert_flags & SSL_CERT_FLAG_BROKEN_PROTOCOL)
* curves permitted.
*/
if (tls1_suiteb(s)) {
+ unsigned char curve_id[2];
/* Curve to check determined by ciphersuite */
if (cid == TLS1_CK_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256)
curve_id[1] = TLSEXT_curve_P_256;
/* Check this curve is acceptable */
if (!tls1_check_ec_key(s, curve_id, NULL))
return 0;
- /* If auto or setting curve from callback assume OK */
- if (s->cert->ecdh_tmp_auto || s->cert->ecdh_tmp_cb)
- return 1;
- /* Otherwise check curve is acceptable */
- else {
- unsigned char curve_tmp[2];
- if (!ec)
- return 0;
- if (!tls1_set_ec_id(curve_tmp, NULL, ec))
- return 0;
- if (!curve_tmp[0] || curve_tmp[1] == curve_id[1])
- return 1;
- return 0;
- }
-
- }
- if (s->cert->ecdh_tmp_auto) {
- /* Need a shared curve */
- if (tls1_shared_curve(s, 0))
- return 1;
- else
- return 0;
- }
- if (!ec) {
- if (s->cert->ecdh_tmp_cb)
- return 1;
- else
- return 0;
+ return 1;
}
- if (!tls1_set_ec_id(curve_id, NULL, ec))
- return 0;
-/* Set this to allow use of invalid curves for testing */
-# if 0
- return 1;
-# else
- return tls1_check_ec_key(s, curve_id, NULL);
-# endif
+ /* Need a shared curve */
+ if (tls1_shared_curve(s, 0))
+ return 1;
+ return 0;
}
# endif /* OPENSSL_NO_EC */
tlsext_sigalg(TLSEXT_hash_sha256)
tlsext_sigalg(TLSEXT_hash_sha224)
tlsext_sigalg(TLSEXT_hash_sha1)
+#ifndef OPENSSL_NO_GOST
+ TLSEXT_hash_gostr3411, TLSEXT_signature_gostr34102001,
+ TLSEXT_hash_gostr34112012_256, TLSEXT_signature_gostr34102012_256,
+ TLSEXT_hash_gostr34112012_512, TLSEXT_signature_gostr34102012_512
+#endif
};
#ifndef OPENSSL_NO_EC
s->s3->tmp.mask_ssl = SSL_TLSV1_2;
else
s->s3->tmp.mask_ssl = 0;
+ /* Disable TLS 1.0 ciphers if using SSL v3 */
+ if (s->client_version == SSL3_VERSION)
+ s->s3->tmp.mask_ssl |= SSL_TLSV1;
ssl_set_sig_mask(&s->s3->tmp.mask_a, s, SSL_SECOP_SIGALG_MASK);
/*
* Disable static DH if we don't include any appropriate signature
* algorithms.
*/
if (s->s3->tmp.mask_a & SSL_aRSA)
- s->s3->tmp.mask_k |= SSL_kDHr | SSL_kECDHr;
- if (s->s3->tmp.mask_a & SSL_aDSS)
- s->s3->tmp.mask_k |= SSL_kDHd;
+ s->s3->tmp.mask_k |= SSL_kECDHr;
if (s->s3->tmp.mask_a & SSL_aECDSA)
s->s3->tmp.mask_k |= SSL_kECDHe;
# ifndef OPENSSL_NO_PSK
STACK_OF(SSL_CIPHER) *cipher_stack = SSL_get_ciphers(s);
for (i = 0; i < sk_SSL_CIPHER_num(cipher_stack); i++) {
- SSL_CIPHER *c = sk_SSL_CIPHER_value(cipher_stack, i);
+ const SSL_CIPHER *c = sk_SSL_CIPHER_value(cipher_stack, i);
alg_k = c->algorithm_mkey;
alg_a = c->algorithm_auth;
s->tlsext_session_ticket->data) {
ticklen = s->tlsext_session_ticket->length;
s->session->tlsext_tick = OPENSSL_malloc(ticklen);
- if (!s->session->tlsext_tick)
+ if (s->session->tlsext_tick == NULL)
return NULL;
memcpy(s->session->tlsext_tick,
s->tlsext_session_ticket->data, ticklen);
* for other cases too.
*/
if (s->s3->tmp.new_cipher->algorithm_mac == SSL_AEAD
- || s->s3->tmp.new_cipher->algorithm_enc == SSL_RC4)
+ || s->s3->tmp.new_cipher->algorithm_enc == SSL_RC4
+ || s->s3->tmp.new_cipher->algorithm_enc == SSL_eGOST2814789CNT
+ || s->s3->tmp.new_cipher->algorithm_enc == SSL_eGOST2814789CNT12)
s->s3->flags &= ~TLS1_FLAGS_ENCRYPT_THEN_MAC;
else {
s2n(TLSEXT_TYPE_encrypt_then_mac, ret);
}
}
#endif
- if (!s->hit && s->session->flags & SSL_SESS_FLAG_EXTMS) {
+ if (s->s3->flags & TLS1_FLAGS_RECEIVED_EXTMS) {
s2n(TLSEXT_TYPE_extended_master_secret, ret);
s2n(0, ret);
}
if (r == SSL_TLSEXT_ERR_OK) {
OPENSSL_free(s->s3->alpn_selected);
s->s3->alpn_selected = OPENSSL_malloc(selected_len);
- if (!s->s3->alpn_selected) {
+ if (s->s3->alpn_selected == NULL) {
*al = SSL_AD_INTERNAL_ERROR;
return -1;
}
* Sadly we cannot differentiate 10.6, 10.7 and 10.8.4 (which work), from
* 10.8..10.8.3 (which don't work).
*/
-static void ssl_check_for_safari(SSL *s, PACKET *pkt)
+static void ssl_check_for_safari(SSL *s, const PACKET *pkt)
{
unsigned int type, size;
unsigned char *eblock1, *eblock2;
+ PACKET tmppkt;
static const unsigned char kSafariExtensionsBlock[] = {
0x00, 0x0a, /* elliptic_curves extension */
0x02, 0x03, /* SHA-1/ECDSA */
};
- if (!PACKET_forward(pkt, 2)
- || !PACKET_get_net_2(pkt, &type)
- || !PACKET_get_net_2(pkt, &size)
- || !PACKET_forward(pkt, size))
+ tmppkt = *pkt;
+
+ if (!PACKET_forward(&tmppkt, 2)
+ || !PACKET_get_net_2(&tmppkt, &type)
+ || !PACKET_get_net_2(&tmppkt, &size)
+ || !PACKET_forward(&tmppkt, size))
return;
if (type != TLSEXT_TYPE_server_name)
const size_t len1 = sizeof(kSafariExtensionsBlock);
const size_t len2 = sizeof(kSafariTLS12ExtensionsBlock);
- if (!PACKET_get_bytes(pkt, &eblock1, len1)
- || !PACKET_get_bytes(pkt, &eblock2, len2)
- || PACKET_remaining(pkt))
+ if (!PACKET_get_bytes(&tmppkt, &eblock1, len1)
+ || !PACKET_get_bytes(&tmppkt, &eblock2, len2)
+ || PACKET_remaining(&tmppkt))
return;
if (memcmp(eblock1, kSafariExtensionsBlock, len1) != 0)
return;
} else {
const size_t len = sizeof(kSafariExtensionsBlock);
- if (!PACKET_get_bytes(pkt, &eblock1, len)
- || PACKET_remaining(pkt))
+ if (!PACKET_get_bytes(&tmppkt, &eblock1, len)
+ || PACKET_remaining(&tmppkt))
return;
if (memcmp(eblock1, kSafariExtensionsBlock, len) != 0)
return;
if (!PACKET_get_net_2(pkt, &len))
goto err;
+ if (PACKET_remaining(pkt) != len)
+ goto err;
+
while (PACKET_get_net_2(pkt, &type) && PACKET_get_net_2(pkt, &size)) {
PACKET subpkt;
}
}
/* We shouldn't have any bytes left */
- if (PACKET_remaining(&ssubpkt))
+ if (PACKET_remaining(&ssubpkt) != 0)
goto err;
}
|| (dsize & 1) != 0
|| (dsize == 0)
|| !PACKET_get_bytes(&subpkt, &data, dsize)
- || PACKET_remaining(&subpkt)
+ || PACKET_remaining(&subpkt) != 0
|| !tls1_save_sigalgs(s, data, dsize)) {
goto err;
}
else if (type == TLSEXT_TYPE_encrypt_then_mac)
s->s3->flags |= TLS1_FLAGS_ENCRYPT_THEN_MAC;
#endif
- else if (type == TLSEXT_TYPE_extended_master_secret) {
- if (!s->hit)
- s->session->flags |= SSL_SESS_FLAG_EXTMS;
- }
+ /*
+ * Note: extended master secret extension handled in
+ * tls_check_serverhello_tlsext_early()
+ */
+
/*
* If this ClientHello extension was unhandled and this is a
* nonresumed connection, check whether the extension is a custom
* elements of zero length are allowed and the set of elements must exactly
* fill the length of the block.
*/
-static char ssl_next_proto_validate(unsigned char *d, unsigned len)
+static char ssl_next_proto_validate(PACKET *pkt)
{
- unsigned int off = 0;
+ unsigned int len;
- while (off < len) {
- if (d[off] == 0)
+ while (PACKET_remaining(pkt)) {
+ if (!PACKET_get_1(pkt, &len)
+ || !PACKET_forward(pkt, len))
return 0;
- off += d[off];
- off++;
}
- return off == len;
+ return 1;
}
#endif
-static int ssl_scan_serverhello_tlsext(SSL *s, unsigned char **p,
- unsigned char *d, int n, int *al)
+static int ssl_scan_serverhello_tlsext(SSL *s, PACKET *pkt, int *al)
{
- unsigned short length;
- unsigned short type;
- unsigned short size;
- unsigned char *data = *p;
+ unsigned int length, type, size;
int tlsext_servername = 0;
int renegotiate_seen = 0;
s->s3->flags &= ~TLS1_FLAGS_ENCRYPT_THEN_MAC;
#endif
- if (data >= (d + n - 2))
+ s->s3->flags &= ~TLS1_FLAGS_RECEIVED_EXTMS;
+
+ if (!PACKET_get_net_2(pkt, &length))
goto ri_check;
- n2s(data, length);
- if (data + length != d + n) {
+ if (PACKET_remaining(pkt) != length) {
*al = SSL_AD_DECODE_ERROR;
return 0;
}
- while (data <= (d + n - 4)) {
- n2s(data, type);
- n2s(data, size);
+ while (PACKET_get_net_2(pkt, &type) && PACKET_get_net_2(pkt, &size)) {
+ unsigned char *data;
+ PACKET spkt;
- if (data + size > (d + n))
+ if (!PACKET_get_sub_packet(pkt, &spkt, size)
+ || !PACKET_peek_bytes(&spkt, &data, size))
goto ri_check;
if (s->tlsext_debug_cb)
s->tlsext_debug_cb(s, 1, type, data, size, s->tlsext_debug_arg);
if (type == TLSEXT_TYPE_renegotiate) {
- if (!ssl_parse_serverhello_renegotiate_ext(s, data, size, al))
+ if (!ssl_parse_serverhello_renegotiate_ext(s, &spkt, al))
return 0;
renegotiate_seen = 1;
} else if (s->version == SSL3_VERSION) {
}
#ifndef OPENSSL_NO_EC
else if (type == TLSEXT_TYPE_ec_point_formats) {
- unsigned char *sdata = data;
- int ecpointformatlist_length = *(sdata++);
-
- if (ecpointformatlist_length != size - 1) {
+ unsigned int ecpointformatlist_length;
+ if (!PACKET_get_1(&spkt, &ecpointformatlist_length)
+ || ecpointformatlist_length != size - 1) {
*al = TLS1_AD_DECODE_ERROR;
return 0;
}
}
s->session->tlsext_ecpointformatlist_length =
ecpointformatlist_length;
- memcpy(s->session->tlsext_ecpointformatlist, sdata,
- ecpointformatlist_length);
+ if (!PACKET_copy_bytes(&spkt,
+ s->session->tlsext_ecpointformatlist,
+ ecpointformatlist_length)) {
+ *al = TLS1_AD_DECODE_ERROR;
+ return 0;
+ }
+
}
}
#endif /* OPENSSL_NO_EC */
s->s3->tmp.finish_md_len == 0) {
unsigned char *selected;
unsigned char selected_len;
-
/* We must have requested it. */
if (s->ctx->next_proto_select_cb == NULL) {
*al = TLS1_AD_UNSUPPORTED_EXTENSION;
return 0;
}
/* The data must be valid */
- if (!ssl_next_proto_validate(data, size)) {
+ if (!ssl_next_proto_validate(&spkt)) {
*al = TLS1_AD_DECODE_ERROR;
return 0;
}
return 0;
}
s->next_proto_negotiated = OPENSSL_malloc(selected_len);
- if (!s->next_proto_negotiated) {
+ if (s->next_proto_negotiated == NULL) {
*al = TLS1_AD_INTERNAL_ERROR;
return 0;
}
else if (type == TLSEXT_TYPE_application_layer_protocol_negotiation) {
unsigned len;
-
/* We must have requested it. */
if (s->alpn_client_proto_list == NULL) {
*al = TLS1_AD_UNSUPPORTED_EXTENSION;
return 0;
}
- if (size < 4) {
- *al = TLS1_AD_DECODE_ERROR;
- return 0;
- }
/*-
* The extension data consists of:
* uint16 list_length
* uint8 proto_length;
* uint8 proto[proto_length];
*/
- len = data[0];
- len <<= 8;
- len |= data[1];
- if (len != (unsigned)size - 2) {
- *al = TLS1_AD_DECODE_ERROR;
- return 0;
- }
- len = data[2];
- if (len != (unsigned)size - 3) {
+ if (!PACKET_get_net_2(&spkt, &len)
+ || PACKET_remaining(&spkt) != len
+ || !PACKET_get_1(&spkt, &len)
+ || PACKET_remaining(&spkt) != len) {
*al = TLS1_AD_DECODE_ERROR;
return 0;
}
OPENSSL_free(s->s3->alpn_selected);
s->s3->alpn_selected = OPENSSL_malloc(len);
- if (!s->s3->alpn_selected) {
+ if (s->s3->alpn_selected == NULL) {
*al = TLS1_AD_INTERNAL_ERROR;
return 0;
}
- memcpy(s->s3->alpn_selected, data + 3, len);
+ if (!PACKET_copy_bytes(&spkt, s->s3->alpn_selected, len)) {
+ *al = TLS1_AD_DECODE_ERROR;
+ return 0;
+ }
s->s3->alpn_selected_len = len;
}
#ifndef OPENSSL_NO_HEARTBEATS
else if (type == TLSEXT_TYPE_heartbeat) {
- switch (data[0]) {
+ unsigned int hbtype;
+ if (!PACKET_get_1(&spkt, &hbtype)) {
+ *al = SSL_AD_DECODE_ERROR;
+ return 0;
+ }
+ switch (hbtype) {
case 0x01: /* Server allows us to send HB requests */
s->tlsext_heartbeat |= SSL_TLSEXT_HB_ENABLED;
break;
#endif
#ifndef OPENSSL_NO_SRTP
else if (SSL_IS_DTLS(s) && type == TLSEXT_TYPE_use_srtp) {
- if (ssl_parse_serverhello_use_srtp_ext(s, data, size, al))
+ if (ssl_parse_serverhello_use_srtp_ext(s, &spkt, al))
return 0;
}
#endif
}
#endif
else if (type == TLSEXT_TYPE_extended_master_secret) {
+ s->s3->flags |= TLS1_FLAGS_RECEIVED_EXTMS;
if (!s->hit)
s->session->flags |= SSL_SESS_FLAG_EXTMS;
}
*/
else if (custom_ext_parse(s, 0, type, data, size, al) <= 0)
return 0;
-
- data += size;
}
- if (data != d + n) {
+ if (PACKET_remaining(pkt) != 0) {
*al = SSL_AD_DECODE_ERROR;
return 0;
}
if (!s->hit && tlsext_servername == 1) {
if (s->tlsext_hostname) {
if (s->session->tlsext_hostname == NULL) {
- s->session->tlsext_hostname = BUF_strdup(s->tlsext_hostname);
+ s->session->tlsext_hostname = OPENSSL_strdup(s->tlsext_hostname);
if (!s->session->tlsext_hostname) {
*al = SSL_AD_UNRECOGNIZED_NAME;
return 0;
}
}
- *p = data;
-
ri_check:
/*
return 0;
}
+ if (s->hit) {
+ /*
+ * Check extended master secret extension is consistent with
+ * original session.
+ */
+ if (!(s->s3->flags & TLS1_FLAGS_RECEIVED_EXTMS) !=
+ !(s->session->flags & SSL_SESS_FLAG_EXTMS)) {
+ *al = SSL_AD_HANDSHAKE_FAILURE;
+ SSLerr(SSL_F_SSL_SCAN_SERVERHELLO_TLSEXT, SSL_R_INCONSISTENT_EXTMS);
+ return 0;
+ }
+ }
+
return 1;
}
}
}
/* Initialise digests to default values */
-static void ssl_set_default_md(SSL *s)
+void ssl_set_default_md(SSL *s)
{
const EVP_MD **pmd = s->s3->tmp.md;
#ifndef OPENSSL_NO_DSA
- pmd[SSL_PKEY_DSA_SIGN] = EVP_sha1();
+ pmd[SSL_PKEY_DSA_SIGN] = ssl_md(SSL_MD_SHA1_IDX);
#endif
#ifndef OPENSSL_NO_RSA
- pmd[SSL_PKEY_RSA_SIGN] = EVP_sha1();
- pmd[SSL_PKEY_RSA_ENC] = EVP_sha1();
+ if (SSL_USE_SIGALGS(s))
+ pmd[SSL_PKEY_RSA_SIGN] = ssl_md(SSL_MD_SHA1_IDX);
+ else
+ pmd[SSL_PKEY_RSA_SIGN] = ssl_md(SSL_MD_MD5_SHA1_IDX);
+ pmd[SSL_PKEY_RSA_ENC] = pmd[SSL_PKEY_RSA_SIGN];
#endif
#ifndef OPENSSL_NO_EC
- pmd[SSL_PKEY_ECC] = EVP_sha1();
+ pmd[SSL_PKEY_ECC] = ssl_md(SSL_MD_SHA1_IDX);
+#endif
+#ifndef OPENSSL_NO_GOST
+ pmd[SSL_PKEY_GOST01] = ssl_md(SSL_MD_GOST94_IDX);
+ pmd[SSL_PKEY_GOST12_256] = ssl_md(SSL_MD_GOST12_256_IDX);
+ pmd[SSL_PKEY_GOST12_512] = ssl_md(SSL_MD_GOST12_512_IDX);
#endif
}
initial_ctx->tlsext_servername_arg);
/*
- * If we've requested certificate status and we wont get one tell the
- * callback
+ * Ensure we get sensible values passed to tlsext_status_cb in the event
+ * that we don't receive a status message
*/
- if ((s->tlsext_status_type != -1) && !(s->tlsext_status_expected)
- && s->ctx && s->ctx->tlsext_status_cb) {
- int r;
- /*
- * Set resp to NULL, resplen to -1 so callback knows there is no
- * response.
- */
- OPENSSL_free(s->tlsext_ocsp_resp);
- s->tlsext_ocsp_resp = NULL;
- s->tlsext_ocsp_resplen = -1;
- r = s->ctx->tlsext_status_cb(s, s->ctx->tlsext_status_arg);
- if (r == 0) {
- al = SSL_AD_BAD_CERTIFICATE_STATUS_RESPONSE;
- ret = SSL_TLSEXT_ERR_ALERT_FATAL;
- }
- if (r < 0) {
- al = SSL_AD_INTERNAL_ERROR;
- ret = SSL_TLSEXT_ERR_ALERT_FATAL;
- }
- }
+ OPENSSL_free(s->tlsext_ocsp_resp);
+ s->tlsext_ocsp_resp = NULL;
+ s->tlsext_ocsp_resplen = -1;
switch (ret) {
case SSL_TLSEXT_ERR_ALERT_FATAL:
}
}
-int ssl_parse_serverhello_tlsext(SSL *s, unsigned char **p, unsigned char *d,
- int n)
+int ssl_parse_serverhello_tlsext(SSL *s, PACKET *pkt)
{
int al = -1;
if (s->version < SSL3_VERSION)
return 1;
- if (ssl_scan_serverhello_tlsext(s, p, d, n, &al) <= 0) {
+ if (ssl_scan_serverhello_tlsext(s, pkt, &al) <= 0) {
ssl3_send_alert(s, SSL3_AL_FATAL, al);
return 0;
}
/*-
* Since the server cache lookup is done early on in the processing of the
- * ClientHello, and other operations depend on the result, we need to handle
- * any TLS session ticket extension at the same time.
+ * ClientHello and other operations depend on the result some extensions
+ * need to be handled at the same time.
*
- * session_id: points at the session ID in the ClientHello. This code will
- * read past the end of this in order to parse out the session ticket
- * extension, if any.
- * len: the length of the session ID.
- * limit: a pointer to the first byte after the ClientHello.
+ * Two extensions are currently handled, session ticket and extended master
+ * secret.
+ *
+ * session_id: ClientHello session ID.
+ * ext: ClientHello extensions (including length prefix)
* ret: (output) on return, if a ticket was decrypted, then this is set to
* point to the resulting session.
*
* a session ticket or we couldn't use the one it gave us, or if
* s->ctx->tlsext_ticket_key_cb asked to renew the client's ticket.
* Otherwise, s->tlsext_ticket_expected is set to 0.
+ *
+ * For extended master secret flag is set if the extension is present.
+ *
*/
-int tls1_process_ticket(SSL *s, PACKET *pkt, unsigned char *session_id,
- int len, SSL_SESSION **ret)
+int tls_check_serverhello_tlsext_early(SSL *s, const PACKET *ext,
+ const PACKET *session_id,
+ SSL_SESSION **ret)
{
unsigned int i;
- size_t bookmark = 0;
+ PACKET local_ext = *ext;
int retv = -1;
+ int have_ticket = 0;
+ int use_ticket = tls_use_ticket(s);
+
*ret = NULL;
s->tlsext_ticket_expected = 0;
+ s->s3->flags &= ~TLS1_FLAGS_RECEIVED_EXTMS;
/*
* If tickets disabled behave as if no ticket present to permit stateful
* resumption.
*/
- if (!tls_use_ticket(s))
- return 0;
if ((s->version <= SSL3_VERSION))
return 0;
- if (!PACKET_get_bookmark(pkt, &bookmark)) {
- return -1;
- }
-
- /* Skip past DTLS cookie */
- if (SSL_IS_DTLS(s)) {
- if (!PACKET_get_1(pkt, &i)
- || !PACKET_forward(pkt, i)) {
- retv = -1;
- goto end;
- }
- }
- /* Skip past cipher list and compression algorithm list */
- if (!PACKET_get_net_2(pkt, &i)
- || !PACKET_forward(pkt, i)
- || !PACKET_get_1(pkt, &i)
- || !PACKET_forward(pkt, i)) {
- retv = -1;
- goto end;
- }
-
- /* Now at start of extensions */
- if (!PACKET_get_net_2(pkt, &i)) {
+ if (!PACKET_get_net_2(&local_ext, &i)) {
retv = 0;
goto end;
}
- while (PACKET_remaining (pkt) >= 4) {
+ while (PACKET_remaining(&local_ext) >= 4) {
unsigned int type, size;
- if (!PACKET_get_net_2(pkt, &type)
- || !PACKET_get_net_2(pkt, &size)) {
+ if (!PACKET_get_net_2(&local_ext, &type)
+ || !PACKET_get_net_2(&local_ext, &size)) {
/* Shouldn't ever happen */
retv = -1;
goto end;
}
- if (PACKET_remaining(pkt) < size) {
+ if (PACKET_remaining(&local_ext) < size) {
retv = 0;
goto end;
}
- if (type == TLSEXT_TYPE_session_ticket) {
+ if (type == TLSEXT_TYPE_session_ticket && use_ticket) {
int r;
unsigned char *etick;
+ /* Duplicate extension */
+ if (have_ticket != 0) {
+ retv = -1;
+ goto end;
+ }
+ have_ticket = 1;
+
if (size == 0) {
/*
* The client will accept a ticket but doesn't currently have
*/
s->tlsext_ticket_expected = 1;
retv = 1;
- goto end;
+ continue;
}
if (s->tls_session_secret_cb) {
/*
* calculate the master secret later.
*/
retv = 2;
- goto end;
+ continue;
}
- if (!PACKET_get_bytes(pkt, &etick, size)) {
+ if (!PACKET_get_bytes(&local_ext, &etick, size)) {
/* Shouldn't ever happen */
retv = -1;
goto end;
}
- r = tls_decrypt_ticket(s, etick, size, session_id, len, ret);
+ r = tls_decrypt_ticket(s, etick, size, PACKET_data(session_id),
+ PACKET_remaining(session_id), ret);
switch (r) {
case 2: /* ticket couldn't be decrypted */
s->tlsext_ticket_expected = 1;
retv = -1;
break;
}
- goto end;
+ continue;
+ } else {
+ if (type == TLSEXT_TYPE_extended_master_secret)
+ s->s3->flags |= TLS1_FLAGS_RECEIVED_EXTMS;
+ if (!PACKET_forward(&local_ext, size)) {
+ retv = -1;
+ goto end;
+ }
}
}
- retv = 0;
+ if (have_ticket == 0)
+ retv = 0;
end:
- if (!PACKET_goto_bookmark(pkt, bookmark))
- return -1;
return retv;
}
* point to the resulting session.
*
* Returns:
+ * -2: fatal error, malloc failure.
* -1: fatal error, either from parsing or decrypting the ticket.
* 2: the ticket couldn't be decrypted.
* 3: a ticket was successfully decrypted and *psess was set.
const unsigned char *p;
int slen, mlen, renew_ticket = 0;
unsigned char tick_hmac[EVP_MAX_MD_SIZE];
- HMAC_CTX hctx;
+ HMAC_CTX *hctx = NULL;
EVP_CIPHER_CTX ctx;
SSL_CTX *tctx = s->initial_ctx;
/* Need at least keyname + iv + some encrypted data */
if (eticklen < 48)
return 2;
/* Initialize session ticket encryption and HMAC contexts */
- HMAC_CTX_init(&hctx);
+ hctx = HMAC_CTX_new();
+ if (hctx == NULL)
+ return -2;
EVP_CIPHER_CTX_init(&ctx);
if (tctx->tlsext_ticket_key_cb) {
unsigned char *nctick = (unsigned char *)etick;
int rv = tctx->tlsext_ticket_key_cb(s, nctick, nctick + 16,
- &ctx, &hctx, 0);
+ &ctx, hctx, 0);
if (rv < 0)
return -1;
if (rv == 0)
/* Check key name matches */
if (memcmp(etick, tctx->tlsext_tick_key_name, 16))
return 2;
- HMAC_Init_ex(&hctx, tctx->tlsext_tick_hmac_key, 16,
- EVP_sha256(), NULL);
- EVP_DecryptInit_ex(&ctx, EVP_aes_128_cbc(), NULL,
- tctx->tlsext_tick_aes_key, etick + 16);
+ if (HMAC_Init_ex(hctx, tctx->tlsext_tick_hmac_key, 16,
+ EVP_sha256(), NULL) <= 0
+ || EVP_DecryptInit_ex(&ctx, EVP_aes_128_cbc(), NULL,
+ tctx->tlsext_tick_aes_key,
+ etick + 16) <= 0) {
+ goto err;
+ }
}
/*
* Attempt to process session ticket, first conduct sanity and integrity
* checks on ticket.
*/
- mlen = HMAC_size(&hctx);
+ mlen = HMAC_size(hctx);
if (mlen < 0) {
- EVP_CIPHER_CTX_cleanup(&ctx);
- return -1;
+ goto err;
}
eticklen -= mlen;
/* Check HMAC of encrypted ticket */
- HMAC_Update(&hctx, etick, eticklen);
- HMAC_Final(&hctx, tick_hmac, NULL);
- HMAC_CTX_cleanup(&hctx);
+ if (HMAC_Update(hctx, etick, eticklen) <= 0
+ || HMAC_Final(hctx, tick_hmac, NULL) <= 0) {
+ goto err;
+ }
+ HMAC_CTX_free(hctx);
if (CRYPTO_memcmp(tick_hmac, etick + eticklen, mlen)) {
EVP_CIPHER_CTX_cleanup(&ctx);
return 2;
p = etick + 16 + EVP_CIPHER_CTX_iv_length(&ctx);
eticklen -= 16 + EVP_CIPHER_CTX_iv_length(&ctx);
sdec = OPENSSL_malloc(eticklen);
- if (!sdec) {
+ if (sdec == NULL
+ || EVP_DecryptUpdate(&ctx, sdec, &slen, p, eticklen) <= 0) {
EVP_CIPHER_CTX_cleanup(&ctx);
return -1;
}
- EVP_DecryptUpdate(&ctx, sdec, &slen, p, eticklen);
if (EVP_DecryptFinal(&ctx, sdec + slen, &mlen) <= 0) {
EVP_CIPHER_CTX_cleanup(&ctx);
OPENSSL_free(sdec);
* For session parse failure, indicate that we need to send a new ticket.
*/
return 2;
+err:
+ EVP_CIPHER_CTX_cleanup(&ctx);
+ HMAC_CTX_free(hctx);
+ return -1;
}
/* Tables to translate from NIDs to TLS v1.2 ids */
{NID_sha224, TLSEXT_hash_sha224},
{NID_sha256, TLSEXT_hash_sha256},
{NID_sha384, TLSEXT_hash_sha384},
- {NID_sha512, TLSEXT_hash_sha512}
+ {NID_sha512, TLSEXT_hash_sha512},
+ {NID_id_GostR3411_94, TLSEXT_hash_gostr3411},
+ {NID_id_GostR3411_2012_256, TLSEXT_hash_gostr34112012_256},
+ {NID_id_GostR3411_2012_512, TLSEXT_hash_gostr34112012_512},
};
static const tls12_lookup tls12_sig[] = {
{EVP_PKEY_RSA, TLSEXT_signature_rsa},
{EVP_PKEY_DSA, TLSEXT_signature_dsa},
- {EVP_PKEY_EC, TLSEXT_signature_ecdsa}
+ {EVP_PKEY_EC, TLSEXT_signature_ecdsa},
+ {NID_id_GostR3410_2001, TLSEXT_signature_gostr34102001},
+ {NID_id_GostR3410_2012_256, TLSEXT_signature_gostr34102012_256},
+ {NID_id_GostR3410_2012_512, TLSEXT_signature_gostr34102012_512}
};
static int tls12_find_id(int nid, const tls12_lookup *table, size_t tlen)
typedef struct {
int nid;
int secbits;
- const EVP_MD *(*mfunc) (void);
+ int md_idx;
+ unsigned char tlsext_hash;
} tls12_hash_info;
static const tls12_hash_info tls12_md_info[] = {
-#ifdef OPENSSL_NO_MD5
- {NID_md5, 64, 0},
-#else
- {NID_md5, 64, EVP_md5},
-#endif
- {NID_sha1, 80, EVP_sha1},
- {NID_sha224, 112, EVP_sha224},
- {NID_sha256, 128, EVP_sha256},
- {NID_sha384, 192, EVP_sha384},
- {NID_sha512, 256, EVP_sha512}
+ {NID_md5, 64, SSL_MD_MD5_IDX, TLSEXT_hash_md5},
+ {NID_sha1, 80, SSL_MD_SHA1_IDX, TLSEXT_hash_sha1},
+ {NID_sha224, 112, SSL_MD_SHA224_IDX, TLSEXT_hash_sha224},
+ {NID_sha256, 128, SSL_MD_SHA256_IDX, TLSEXT_hash_sha256},
+ {NID_sha384, 192, SSL_MD_SHA384_IDX, TLSEXT_hash_sha384},
+ {NID_sha512, 256, SSL_MD_SHA512_IDX, TLSEXT_hash_sha512},
+ {NID_id_GostR3411_94, 128, SSL_MD_GOST94_IDX, TLSEXT_hash_gostr3411},
+ {NID_id_GostR3411_2012_256, 128, SSL_MD_GOST12_256_IDX, TLSEXT_hash_gostr34112012_256},
+ {NID_id_GostR3411_2012_512, 256, SSL_MD_GOST12_512_IDX, TLSEXT_hash_gostr34112012_512},
};
static const tls12_hash_info *tls12_get_hash_info(unsigned char hash_alg)
{
+ unsigned int i;
if (hash_alg == 0)
return NULL;
- if (hash_alg > OSSL_NELEM(tls12_md_info))
- return NULL;
- return tls12_md_info + hash_alg - 1;
+
+ for (i=0; i < OSSL_NELEM(tls12_md_info); i++)
+ {
+ if (tls12_md_info[i].tlsext_hash == hash_alg)
+ return tls12_md_info + i;
+ }
+
+ return NULL;
}
const EVP_MD *tls12_get_hash(unsigned char hash_alg)
if (hash_alg == TLSEXT_hash_md5 && FIPS_mode())
return NULL;
inf = tls12_get_hash_info(hash_alg);
- if (!inf || !inf->mfunc)
+ if (!inf)
return NULL;
- return inf->mfunc();
+ return ssl_md(inf->md_idx);
}
static int tls12_get_pkey_idx(unsigned char sig_alg)
case TLSEXT_signature_ecdsa:
return SSL_PKEY_ECC;
#endif
+# ifndef OPENSSL_NO_GOST
+ case TLSEXT_signature_gostr34102001:
+ return SSL_PKEY_GOST01;
+
+ case TLSEXT_signature_gostr34102012_256:
+ return SSL_PKEY_GOST12_256;
+
+ case TLSEXT_signature_gostr34102012_512:
+ return SSL_PKEY_GOST12_512;
+# endif
}
return -1;
}
static void tls1_lookup_sigalg(int *phash_nid, int *psign_nid,
int *psignhash_nid, const unsigned char *data)
{
- int sign_nid = 0, hash_nid = 0;
+ int sign_nid = NID_undef, hash_nid = NID_undef;
if (!phash_nid && !psign_nid && !psignhash_nid)
return;
if (phash_nid || psignhash_nid) {
*psign_nid = sign_nid;
}
if (psignhash_nid) {
- if (sign_nid && hash_nid)
- OBJ_find_sigid_by_algs(psignhash_nid, hash_nid, sign_nid);
- else
+ if (sign_nid == NID_undef || hash_nid == NID_undef
+ || OBJ_find_sigid_by_algs(psignhash_nid, hash_nid,
+ sign_nid) <= 0)
*psignhash_nid = NID_undef;
}
}
{
/* See if we have an entry in the hash table and it is enabled */
const tls12_hash_info *hinf = tls12_get_hash_info(ptmp[0]);
- if (!hinf || !hinf->mfunc)
+ if (hinf == NULL || ssl_md(hinf->md_idx) == NULL)
return 0;
/* See if public key algorithm allowed */
if (tls12_get_pkey_idx(ptmp[1]) == -1)
* disabled.
*/
-void ssl_set_sig_mask(unsigned long *pmask_a, SSL *s, int op)
+void ssl_set_sig_mask(uint32_t *pmask_a, SSL *s, int op)
{
const unsigned char *sigalgs;
size_t i, sigalgslen;
nmatch = tls12_shared_sigalgs(s, NULL, pref, preflen, allow, allowlen);
if (nmatch) {
salgs = OPENSSL_malloc(nmatch * sizeof(TLS_SIGALGS));
- if (!salgs)
+ if (salgs == NULL)
return 0;
nmatch = tls12_shared_sigalgs(s, salgs, pref, preflen, allow, allowlen);
} else {
if (pmd[SSL_PKEY_ECC] == NULL)
pmd[SSL_PKEY_ECC] = EVP_sha1();
#endif
+# ifndef OPENSSL_NO_GOST
+ if (pmd[SSL_PKEY_GOST01] == NULL)
+ pmd[SSL_PKEY_GOST01] = EVP_get_digestbynid(NID_id_GostR3411_94);
+ if (pmd[SSL_PKEY_GOST12_256] == NULL)
+ pmd[SSL_PKEY_GOST12_256] = EVP_get_digestbynid(NID_id_GostR3411_2012_256);
+ if (pmd[SSL_PKEY_GOST12_512] == NULL)
+ pmd[SSL_PKEY_GOST12_512] = EVP_get_digestbynid(NID_id_GostR3411_2012_512);
+# endif
}
return 1;
}
}
/* ...and no handshake in progress. */
- if (SSL_in_init(s) || s->in_handshake) {
+ if (SSL_in_init(s) || ossl_statem_get_in_handshake(s)) {
SSLerr(SSL_F_TLS1_HEARTBEAT, SSL_R_UNEXPECTED_MESSAGE);
return -1;
}
- /*
- * Check if padding is too long, payload and padding must not exceed 2^14
- * - 3 = 16381 bytes in total.
- */
- OPENSSL_assert(payload + padding <= 16381);
-
/*-
* Create HeartBeat message, we just use a sequence number
* as payload to distuingish different messages and add
idx = ssl_cert_type(x, pk);
if (idx == -1)
return 0;
- cpk = c->pkeys + idx;
pvalid = s->s3->tmp.valid_flags + idx;
if (c->cert_flags & SSL_CERT_FLAGS_CHECK_TLS_STRICT)
switch (idx) {
case SSL_PKEY_RSA_ENC:
case SSL_PKEY_RSA_SIGN:
- case SSL_PKEY_DH_RSA:
rsign = TLSEXT_signature_rsa;
default_nid = NID_sha1WithRSAEncryption;
break;
case SSL_PKEY_DSA_SIGN:
- case SSL_PKEY_DH_DSA:
rsign = TLSEXT_signature_dsa;
default_nid = NID_dsaWithSHA1;
break;
default_nid = NID_ecdsa_with_SHA1;
break;
+ case SSL_PKEY_GOST01:
+ rsign = TLSEXT_signature_gostr34102001;
+ default_nid = NID_id_GostR3411_94_with_GostR3410_2001;
+ break;
+
+ case SSL_PKEY_GOST12_256:
+ rsign = TLSEXT_signature_gostr34102012_256;
+ default_nid = NID_id_tc26_signwithdigest_gost3410_2012_256;
+ break;
+
+ case SSL_PKEY_GOST12_512:
+ rsign = TLSEXT_signature_gostr34102012_512;
+ default_nid = NID_id_tc26_signwithdigest_gost3410_2012_512;
+ break;
+
default:
default_nid = -1;
break;
case EVP_PKEY_EC:
check_type = TLS_CT_ECDSA_SIGN;
break;
- case EVP_PKEY_DH:
- case EVP_PKEY_DHX:
- {
- int cert_type = X509_certificate_type(x, pk);
- if (cert_type & EVP_PKS_RSA)
- check_type = TLS_CT_RSA_FIXED_DH;
- if (cert_type & EVP_PKS_DSA)
- check_type = TLS_CT_DSS_FIXED_DH;
- }
}
if (check_type) {
const unsigned char *ctypes;
tls1_check_chain(s, NULL, NULL, NULL, SSL_PKEY_RSA_ENC);
tls1_check_chain(s, NULL, NULL, NULL, SSL_PKEY_RSA_SIGN);
tls1_check_chain(s, NULL, NULL, NULL, SSL_PKEY_DSA_SIGN);
- tls1_check_chain(s, NULL, NULL, NULL, SSL_PKEY_DH_RSA);
- tls1_check_chain(s, NULL, NULL, NULL, SSL_PKEY_DH_DSA);
tls1_check_chain(s, NULL, NULL, NULL, SSL_PKEY_ECC);
+ tls1_check_chain(s, NULL, NULL, NULL, SSL_PKEY_GOST01);
+ tls1_check_chain(s, NULL, NULL, NULL, SSL_PKEY_GOST12_256);
+ tls1_check_chain(s, NULL, NULL, NULL, SSL_PKEY_GOST12_512);
}
/* User level utiity function to check a chain is suitable */
if (dh_secbits >= 128) {
DH *dhp = DH_new();
- if (!dhp)
+ if (dhp == NULL)
return NULL;
dhp->g = BN_new();
- if (dhp->g)
+ if (dhp->g != NULL)
BN_set_word(dhp->g, 2);
if (dh_secbits >= 192)
dhp->p = get_rfc3526_prime_8192(NULL);
else
dhp->p = get_rfc3526_prime_3072(NULL);
- if (!dhp->p || !dhp->g) {
+ if (dhp->p == NULL || dhp->g == NULL) {
DH_free(dhp);
return NULL;
}
static int ssl_security_cert_key(SSL *s, SSL_CTX *ctx, X509 *x, int op)
{
- int secbits;
- EVP_PKEY *pkey = X509_get_pubkey(x);
+ int secbits = -1;
+ EVP_PKEY *pkey = X509_get0_pubkey(x);
if (pkey) {
+ /*
+ * If no parameters this will return -1 and fail using the default
+ * security callback for any non-zero security level. This will
+ * reject keys which omit parameters but this only affects DSA and
+ * omission of parameters is never (?) done in practice.
+ */
secbits = EVP_PKEY_security_bits(pkey);
- EVP_PKEY_free(pkey);
- } else
- secbits = -1;
+ }
if (s)
return ssl_security(s, op, secbits, 0, x);
else
projects / openssl.git / blobdiff