case TLS_ST_SR_CHANGE:
#ifndef OPENSSL_NO_NEXTPROTONEG
- if (s->s3->next_proto_neg_seen) {
+ if (s->s3->npn_seen) {
if (mt == SSL3_MT_NEXT_PROTO) {
st->hand_state = TLS_ST_SR_NEXT_PROTO;
return 1;
return WRITE_TRAN_CONTINUE;
case TLS_ST_SW_CERT:
- st->hand_state = s->tlsext_status_expected ? TLS_ST_SW_CERT_STATUS
- : TLS_ST_SW_FINISHED;
+ st->hand_state = TLS_ST_SW_CERT_VRFY;
return WRITE_TRAN_CONTINUE;
- case TLS_ST_SW_CERT_STATUS:
+ case TLS_ST_SW_CERT_VRFY:
st->hand_state = TLS_ST_SW_FINISHED;
return WRITE_TRAN_CONTINUE;
case TLS_ST_SW_SRVR_HELLO:
if (s->hit) {
- if (s->tlsext_ticket_expected)
+ if (s->ext.ticket_expected)
st->hand_state = TLS_ST_SW_SESSION_TICKET;
else
st->hand_state = TLS_ST_SW_CHANGE;
return WRITE_TRAN_CONTINUE;
case TLS_ST_SW_CERT:
- if (s->tlsext_status_expected) {
+ if (s->ext.status_expected) {
st->hand_state = TLS_ST_SW_CERT_STATUS;
return WRITE_TRAN_CONTINUE;
}
st->hand_state = TLS_ST_OK;
ossl_statem_set_in_init(s, 0);
return WRITE_TRAN_CONTINUE;
- } else if (s->tlsext_ticket_expected) {
+ } else if (s->ext.ticket_expected) {
st->hand_state = TLS_ST_SW_SESSION_TICKET;
} else {
st->hand_state = TLS_ST_SW_CHANGE;
*mt = SSL3_MT_CERTIFICATE;
break;
+ case TLS_ST_SW_CERT_VRFY:
+ *confunc = tls_construct_cert_verify;
+ *mt = SSL3_MT_CERTIFICATE_VERIFY;
+ break;
+
+
case TLS_ST_SW_KEY_EXCH:
*confunc = tls_construct_server_key_exchange;
*mt = SSL3_MT_SERVER_KEY_EXCHANGE;
*/
static void ssl_check_for_safari(SSL *s, const CLIENTHELLO_MSG *hello)
{
- unsigned int type;
- PACKET sni, tmppkt;
- size_t ext_len;
-
static const unsigned char kSafariExtensionsBlock[] = {
0x00, 0x0a, /* elliptic_curves extension */
0x00, 0x08, /* 8 bytes */
0x04, 0x03, /* SHA-256/ECDSA */
0x02, 0x03, /* SHA-1/ECDSA */
};
-
/* Length of the common prefix (first two extensions). */
static const size_t kSafariCommonExtensionsLength = 18;
+ unsigned int type;
+ PACKET sni, tmppkt;
+ size_t ext_len;
tmppkt = hello->extensions;
/* Preserve the raw extensions PACKET for later use */
extensions = clienthello.extensions;
if (!tls_collect_extensions(s, &extensions, EXT_CLIENT_HELLO,
- &clienthello.pre_proc_exts,
- &clienthello.num_extensions, &al)) {
+ &clienthello.pre_proc_exts, &al)) {
/* SSLerr already been called */
goto f_err;
}
s->hit = 0;
/* We need to do this before getting the session */
- if (!tls_parse_extension(s, TLSEXT_TYPE_extended_master_secret,
+ if (!tls_parse_extension(s, TLSEXT_IDX_extended_master_secret,
EXT_CLIENT_HELLO,
- clienthello.pre_proc_exts,
- clienthello.num_extensions, &al)) {
+ clienthello.pre_proc_exts, NULL, 0, &al)) {
SSLerr(SSL_F_TLS_PROCESS_CLIENT_HELLO, SSL_R_CLIENTHELLO_TLSEXT);
goto f_err;
}
/* TLS extensions */
if (!tls_parse_all_extensions(s, EXT_CLIENT_HELLO,
- clienthello.pre_proc_exts,
- clienthello.num_extensions, &al)) {
+ clienthello.pre_proc_exts, NULL, 0, &al)) {
SSLerr(SSL_F_TLS_PROCESS_CLIENT_HELLO, SSL_R_PARSE_TLSEXT);
goto f_err;
}
}
}
- if (!s->hit && s->version >= TLS1_VERSION && s->tls_session_secret_cb) {
+ if (!s->hit && s->version >= TLS1_VERSION && s->ext.session_secret_cb) {
const SSL_CIPHER *pref_cipher = NULL;
/*
* s->session->master_key_length is a size_t, but this is an int for
int master_key_length;
master_key_length = sizeof(s->session->master_key);
- if (s->tls_session_secret_cb(s, s->session->master_key,
+ if (s->ext.session_secret_cb(s, s->session->master_key,
&master_key_length, ciphers,
&pref_cipher,
- s->tls_session_secret_cb_arg)
+ s->ext.session_secret_cb_arg)
&& master_key_length > 0) {
s->session->master_key_length = master_key_length;
s->hit = 1;
/*
* Call the status request callback if needed. Upon success, returns 1.
- * Upon failure, returns 0 and sets |al| to the appropriate fatal alert.
+ * Upon failure, returns 0 and sets |*al| to the appropriate fatal alert.
*/
static int tls_handle_status_request(SSL *s, int *al)
{
- s->tlsext_status_expected = 0;
+ s->ext.status_expected = 0;
/*
* If status request then ask callback what to do. Note: this must be
* and must be called after the cipher has been chosen because this may
* influence which certificate is sent
*/
- if ((s->tlsext_status_type != -1) && s->ctx && s->ctx->tlsext_status_cb) {
+ if (s->ext.status_type != TLSEXT_STATUSTYPE_nothing && s->ctx != NULL
+ && s->ctx->ext.status_cb != NULL) {
int ret;
- CERT_PKEY *certpkey;
- certpkey = ssl_get_server_send_pkey(s);
+ CERT_PKEY *certpkey = ssl_get_server_send_pkey(s);
+
/* If no certificate can't return certificate status */
if (certpkey != NULL) {
/*
* et al can pick it up.
*/
s->cert->key = certpkey;
- ret = s->ctx->tlsext_status_cb(s, s->ctx->tlsext_status_arg);
+ ret = s->ctx->ext.status_cb(s, s->ctx->ext.status_arg);
switch (ret) {
/* We don't want to send a status request response */
case SSL_TLSEXT_ERR_NOACK:
- s->tlsext_status_expected = 0;
+ s->ext.status_expected = 0;
break;
/* status request response should be sent */
case SSL_TLSEXT_ERR_OK:
- if (s->tlsext_ocsp_resp)
- s->tlsext_status_expected = 1;
+ if (s->ext.ocsp.resp)
+ s->ext.status_expected = 1;
break;
/* something bad happened */
case SSL_TLSEXT_ERR_ALERT_FATAL:
!= 0));
if (s->session->not_resumable)
/* do not send a session ticket */
- s->tlsext_ticket_expected = 0;
+ s->ext.ticket_expected = 0;
} else {
/* Session-id reuse */
s->s3->tmp.new_cipher = s->session->cipher;
|| !s->method->put_cipher_by_char(s->s3->tmp.new_cipher, pkt, &len)
|| (!SSL_IS_TLS13(s)
&& !WPACKET_put_bytes_u8(pkt, compm))
- /*
- * TODO(TLS1.3): For now we add all 1.2 and 1.3 extensions. Later
- * we will do this based on the actual protocol
- */
|| !tls_construct_extensions(s, pkt,
- EXT_TLS1_2_SERVER_HELLO
- | EXT_TLS1_3_SERVER_HELLO
- | EXT_TLS1_3_ENCRYPTED_EXTENSIONS
- | EXT_TLS1_3_CERTIFICATE, &al)) {
+ SSL_IS_TLS13(s)
+ ? EXT_TLS1_3_SERVER_HELLO
+ : EXT_TLS1_2_SERVER_HELLO,
+ NULL, 0, &al)) {
SSLerr(SSL_F_TLS_CONSTRUCT_SERVER_HELLO, ERR_R_INTERNAL_ERROR);
goto err;
}
}
/* send signature algorithm */
if (SSL_USE_SIGALGS(s)) {
- if (!tls12_get_sigandhash(pkt, pkey, md)) {
+ if (!tls12_get_sigandhash(s, pkt, pkey, md)) {
/* Should never happen */
SSLerr(SSL_F_TLS_CONSTRUCT_SERVER_KEY_EXCHANGE,
ERR_R_INTERNAL_ERROR);
}
if (SSL_USE_SIGALGS(s)) {
- const unsigned char *psigs;
+ const unsigned int *psigs;
size_t nl = tls12_get_psigalgs(s, &psigs);
+
if (!WPACKET_start_sub_packet_u16(pkt)
|| !tls12_copy_sigalgs(s, pkt, psigs, nl)
|| !WPACKET_close(pkt)) {
return WORK_FINISHED_CONTINUE;
}
-MSG_PROCESS_RETURN tls_process_cert_verify(SSL *s, PACKET *pkt)
-{
- EVP_PKEY *pkey = NULL;
- const unsigned char *sig, *data;
-#ifndef OPENSSL_NO_GOST
- unsigned char *gost_data = NULL;
-#endif
- int al, ret = MSG_PROCESS_ERROR;
- int type = 0, j;
- unsigned int len;
- X509 *peer;
- const EVP_MD *md = NULL;
- long hdatalen = 0;
- void *hdata;
-
- EVP_MD_CTX *mctx = EVP_MD_CTX_new();
-
- if (mctx == NULL) {
- SSLerr(SSL_F_TLS_PROCESS_CERT_VERIFY, ERR_R_MALLOC_FAILURE);
- al = SSL_AD_INTERNAL_ERROR;
- goto f_err;
- }
-
- peer = s->session->peer;
- pkey = X509_get0_pubkey(peer);
- type = X509_certificate_type(peer, pkey);
-
- if (!(type & EVP_PKT_SIGN)) {
- SSLerr(SSL_F_TLS_PROCESS_CERT_VERIFY,
- SSL_R_SIGNATURE_FOR_NON_SIGNING_CERTIFICATE);
- al = SSL_AD_ILLEGAL_PARAMETER;
- goto f_err;
- }
-
- /* Check for broken implementations of GOST ciphersuites */
- /*
- * If key is GOST and n is exactly 64, it is bare signature without
- * length field (CryptoPro implementations at least till CSP 4.0)
- */
-#ifndef OPENSSL_NO_GOST
- if (PACKET_remaining(pkt) == 64
- && EVP_PKEY_id(pkey) == NID_id_GostR3410_2001) {
- len = 64;
- } else
-#endif
- {
- if (SSL_USE_SIGALGS(s)) {
- int rv;
-
- if (!PACKET_get_bytes(pkt, &sig, 2)) {
- al = SSL_AD_DECODE_ERROR;
- goto f_err;
- }
- rv = tls12_check_peer_sigalg(&md, s, sig, pkey);
- if (rv == -1) {
- al = SSL_AD_INTERNAL_ERROR;
- goto f_err;
- } else if (rv == 0) {
- al = SSL_AD_DECODE_ERROR;
- goto f_err;
- }
-#ifdef SSL_DEBUG
- fprintf(stderr, "USING TLSv1.2 HASH %s\n", EVP_MD_name(md));
-#endif
- } else {
- /* Use default digest for this key type */
- int idx = ssl_cert_type(NULL, pkey);
- if (idx >= 0)
- md = s->s3->tmp.md[idx];
- if (md == NULL) {
- al = SSL_AD_INTERNAL_ERROR;
- goto f_err;
- }
- }
-
- if (!PACKET_get_net_2(pkt, &len)) {
- SSLerr(SSL_F_TLS_PROCESS_CERT_VERIFY, SSL_R_LENGTH_MISMATCH);
- al = SSL_AD_DECODE_ERROR;
- goto f_err;
- }
- }
- j = EVP_PKEY_size(pkey);
- if (((int)len > j) || ((int)PACKET_remaining(pkt) > j)
- || (PACKET_remaining(pkt) == 0)) {
- SSLerr(SSL_F_TLS_PROCESS_CERT_VERIFY, SSL_R_WRONG_SIGNATURE_SIZE);
- al = SSL_AD_DECODE_ERROR;
- goto f_err;
- }
- if (!PACKET_get_bytes(pkt, &data, len)) {
- SSLerr(SSL_F_TLS_PROCESS_CERT_VERIFY, SSL_R_LENGTH_MISMATCH);
- al = SSL_AD_DECODE_ERROR;
- goto f_err;
- }
-
- hdatalen = BIO_get_mem_data(s->s3->handshake_buffer, &hdata);
- if (hdatalen <= 0) {
- SSLerr(SSL_F_TLS_PROCESS_CERT_VERIFY, ERR_R_INTERNAL_ERROR);
- al = SSL_AD_INTERNAL_ERROR;
- goto f_err;
- }
-
-#ifdef SSL_DEBUG
- fprintf(stderr, "Using client verify alg %s\n", EVP_MD_name(md));
-#endif
- if (!EVP_VerifyInit_ex(mctx, md, NULL)
- || !EVP_VerifyUpdate(mctx, hdata, hdatalen)) {
- SSLerr(SSL_F_TLS_PROCESS_CERT_VERIFY, ERR_R_EVP_LIB);
- al = SSL_AD_INTERNAL_ERROR;
- goto f_err;
- }
-#ifndef OPENSSL_NO_GOST
- {
- int pktype = EVP_PKEY_id(pkey);
- if (pktype == NID_id_GostR3410_2001
- || pktype == NID_id_GostR3410_2012_256
- || pktype == NID_id_GostR3410_2012_512) {
- if ((gost_data = OPENSSL_malloc(len)) == NULL) {
- SSLerr(SSL_F_TLS_PROCESS_CERT_VERIFY, ERR_R_MALLOC_FAILURE);
- al = SSL_AD_INTERNAL_ERROR;
- goto f_err;
- }
- BUF_reverse(gost_data, data, len);
- data = gost_data;
- }
- }
-#endif
-
- if (s->version == SSL3_VERSION
- && !EVP_MD_CTX_ctrl(mctx, EVP_CTRL_SSL3_MASTER_SECRET,
- (int)s->session->master_key_length,
- s->session->master_key)) {
- SSLerr(SSL_F_TLS_PROCESS_CERT_VERIFY, ERR_R_EVP_LIB);
- al = SSL_AD_INTERNAL_ERROR;
- goto f_err;
- }
-
- if (EVP_VerifyFinal(mctx, data, len, pkey) <= 0) {
- al = SSL_AD_DECRYPT_ERROR;
- SSLerr(SSL_F_TLS_PROCESS_CERT_VERIFY, SSL_R_BAD_SIGNATURE);
- goto f_err;
- }
-
- ret = MSG_PROCESS_CONTINUE_PROCESSING;
- if (0) {
- f_err:
- ssl3_send_alert(s, SSL3_AL_FATAL, al);
- ossl_statem_set_error(s);
- }
- BIO_free(s->s3->handshake_buffer);
- s->s3->handshake_buffer = NULL;
- EVP_MD_CTX_free(mctx);
-#ifndef OPENSSL_NO_GOST
- OPENSSL_free(gost_data);
-#endif
- return ret;
-}
-
MSG_PROCESS_RETURN tls_process_client_certificate(SSL *s, PACKET *pkt)
{
int i, al = SSL_AD_INTERNAL_ERROR, ret = MSG_PROCESS_ERROR;
unsigned long l, llen;
const unsigned char *certstart, *certbytes;
STACK_OF(X509) *sk = NULL;
- PACKET spkt;
+ PACKET spkt, context;
+ size_t chainidx;
if ((sk = sk_X509_new_null()) == NULL) {
SSLerr(SSL_F_TLS_PROCESS_CLIENT_CERTIFICATE, ERR_R_MALLOC_FAILURE);
goto f_err;
}
- if (!PACKET_get_net_3(pkt, &llen)
- || !PACKET_get_sub_packet(pkt, &spkt, llen)
- || PACKET_remaining(pkt) != 0) {
+ /* TODO(TLS1.3): For now we ignore the context. We need to verify this */
+ if ((SSL_IS_TLS13(s) && !PACKET_get_length_prefixed_1(pkt, &context))
+ || !PACKET_get_net_3(pkt, &llen)
+ || !PACKET_get_sub_packet(pkt, &spkt, llen)
+ || PACKET_remaining(pkt) != 0) {
al = SSL_AD_DECODE_ERROR;
SSLerr(SSL_F_TLS_PROCESS_CLIENT_CERTIFICATE, SSL_R_LENGTH_MISMATCH);
goto f_err;
}
- while (PACKET_remaining(&spkt) > 0) {
+ for (chainidx = 0; PACKET_remaining(&spkt) > 0; chainidx++) {
if (!PACKET_get_net_3(&spkt, &l)
|| !PACKET_get_bytes(&spkt, &certbytes, l)) {
al = SSL_AD_DECODE_ERROR;
SSL_R_CERT_LENGTH_MISMATCH);
goto f_err;
}
+
+ if (SSL_IS_TLS13(s)) {
+ RAW_EXTENSION *rawexts = NULL;
+ PACKET extensions;
+
+ if (!PACKET_get_length_prefixed_2(&spkt, &extensions)) {
+ al = SSL_AD_DECODE_ERROR;
+ SSLerr(SSL_F_TLS_PROCESS_CLIENT_CERTIFICATE, SSL_R_BAD_LENGTH);
+ goto f_err;
+ }
+ if (!tls_collect_extensions(s, &extensions, EXT_TLS1_3_CERTIFICATE,
+ &rawexts, &al)
+ || !tls_parse_all_extensions(s, EXT_TLS1_3_CERTIFICATE,
+ rawexts, x, chainidx, &al))
+ goto f_err;
+ }
+
if (!sk_X509_push(sk, x)) {
SSLerr(SSL_F_TLS_PROCESS_CLIENT_CERTIFICATE, ERR_R_MALLOC_FAILURE);
goto f_err;
* certificate, while we do include it in statem_clnt.c
*/
sk = NULL;
+
+ /* Save the current hash state for when we receive the CertificateVerify */
+ if (SSL_IS_TLS13(s)
+ && !ssl_handshake_hash(s, s->cert_verify_hash,
+ sizeof(s->cert_verify_hash),
+ &s->cert_verify_hash_len)) {
+ al = SSL_AD_INTERNAL_ERROR;
+ SSLerr(SSL_F_TLS_PROCESS_CLIENT_CERTIFICATE, ERR_R_INTERNAL_ERROR);
+ goto f_err;
+ }
+
ret = MSG_PROCESS_CONTINUE_READING;
goto done;
int tls_construct_server_certificate(SSL *s, WPACKET *pkt)
{
CERT_PKEY *cpk;
+ int al = SSL_AD_INTERNAL_ERROR;
cpk = ssl_get_server_send_pkey(s);
if (cpk == NULL) {
return 0;
}
- if (!ssl3_output_cert_chain(s, pkt, cpk)) {
+ /*
+ * In TLSv1.3 the certificate chain is always preceded by a 0 length context
+ * for the server Certificate message
+ */
+ if ((SSL_IS_TLS13(s) && !WPACKET_put_bytes_u8(pkt, 0))
+ || !ssl3_output_cert_chain(s, pkt, cpk, &al)) {
SSLerr(SSL_F_TLS_CONSTRUCT_SERVER_CERTIFICATE, ERR_R_INTERNAL_ERROR);
+ ssl3_send_alert(s, SSL3_AL_FATAL, al);
return 0;
}
* Initialize HMAC and cipher contexts. If callback present it does
* all the work otherwise use generated values from parent ctx.
*/
- if (tctx->tlsext_ticket_key_cb) {
+ if (tctx->ext.ticket_key_cb) {
/* if 0 is returned, write an empty ticket */
- int ret = tctx->tlsext_ticket_key_cb(s, key_name, iv, ctx,
+ int ret = tctx->ext.ticket_key_cb(s, key_name, iv, ctx,
hctx, 1);
if (ret == 0) {
if (RAND_bytes(iv, iv_len) <= 0)
goto err;
if (!EVP_EncryptInit_ex(ctx, cipher, NULL,
- tctx->tlsext_tick_aes_key, iv))
+ tctx->ext.tick_aes_key, iv))
goto err;
- if (!HMAC_Init_ex(hctx, tctx->tlsext_tick_hmac_key,
- sizeof(tctx->tlsext_tick_hmac_key),
+ if (!HMAC_Init_ex(hctx, tctx->ext.tick_hmac_key,
+ sizeof(tctx->ext.tick_hmac_key),
EVP_sha256(), NULL))
goto err;
- memcpy(key_name, tctx->tlsext_tick_key_name,
- sizeof(tctx->tlsext_tick_key_name));
+ memcpy(key_name, tctx->ext.tick_key_name,
+ sizeof(tctx->ext.tick_key_name));
}
/*
return 0;
}
+/*
+ * In TLSv1.3 this is called from the extensions code, otherwise it is used to
+ * create a separate message. Returns 1 on success or 0 on failure.
+ */
+int tls_construct_cert_status_body(SSL *s, WPACKET *pkt)
+{
+ if (!WPACKET_put_bytes_u8(pkt, s->ext.status_type)
+ || !WPACKET_sub_memcpy_u24(pkt, s->ext.ocsp.resp,
+ s->ext.ocsp.resp_len)) {
+ SSLerr(SSL_F_TLS_CONSTRUCT_CERT_STATUS_BODY, ERR_R_INTERNAL_ERROR);
+ return 0;
+ }
+
+ return 1;
+}
+
int tls_construct_cert_status(SSL *s, WPACKET *pkt)
{
- if (!WPACKET_put_bytes_u8(pkt, s->tlsext_status_type)
- || !WPACKET_sub_memcpy_u24(pkt, s->tlsext_ocsp_resp,
- s->tlsext_ocsp_resplen)) {
- SSLerr(SSL_F_TLS_CONSTRUCT_CERT_STATUS, ERR_R_INTERNAL_ERROR);
+ if (!tls_construct_cert_status_body(s, pkt)) {
ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_INTERNAL_ERROR);
return 0;
}
goto err;
}
- if (!PACKET_memdup(&next_proto, &s->next_proto_negotiated, &next_proto_len)) {
- s->next_proto_negotiated_len = 0;
+ if (!PACKET_memdup(&next_proto, &s->ext.npn, &next_proto_len)) {
+ s->ext.npn_len = 0;
goto err;
}
- s->next_proto_negotiated_len = (unsigned char)next_proto_len;
+ s->ext.npn_len = (unsigned char)next_proto_len;
return MSG_PROCESS_CONTINUE_READING;
err:
static int tls_construct_encrypted_extensions(SSL *s, WPACKET *pkt)
{
- /* TODO(TLS1.3): Zero length encrypted extensions message for now */
- if (!WPACKET_put_bytes_u16(pkt, 0)) {
+ int al;
+
+ if (!tls_construct_extensions(s, pkt, EXT_TLS1_3_ENCRYPTED_EXTENSIONS,
+ NULL, 0, &al)) {
+ ssl3_send_alert(s, SSL3_AL_FATAL, al);
SSLerr(SSL_F_TLS_CONSTRUCT_ENCRYPTED_EXTENSIONS, ERR_R_INTERNAL_ERROR);
- ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_INTERNAL_ERROR);
+ ssl3_send_alert(s, SSL3_AL_FATAL, al);
return 0;
}
projects / openssl.git / blobdiff