#include <openssl/bn.h>
#include <openssl/engine.h>
+static MSG_PROCESS_RETURN tls_process_hello_retry_request(SSL *s, PACKET *pkt);
static MSG_PROCESS_RETURN tls_process_encrypted_extensions(SSL *s, PACKET *pkt);
static ossl_inline int cert_req_allowed(SSL *s);
default:
break;
+ case TLS_ST_CW_CLNT_HELLO:
+ /*
+ * This must a ClientHello following a HelloRetryRequest, so the only
+ * thing we can get now is a ServerHello.
+ */
+ if (mt == SSL3_MT_SERVER_HELLO) {
+ st->hand_state = TLS_ST_CR_SRVR_HELLO;
+ return 1;
+ }
+ break;
+
case TLS_ST_CR_SRVR_HELLO:
if (mt == SSL3_MT_ENCRYPTED_EXTENSIONS) {
st->hand_state = TLS_ST_CR_ENCRYPTED_EXTENSIONS;
int ske_expected;
/*
- * Note that after a ClientHello we don't know what version we are going
- * to negotiate yet, so we don't take this branch until later
+ * Note that after writing the first ClientHello we don't know what version
+ * we are going to negotiate yet, so we don't take this branch until later.
*/
if (SSL_IS_TLS13(s)) {
if (!ossl_statem_client13_read_transition(s, mt))
st->hand_state = DTLS_ST_CR_HELLO_VERIFY_REQUEST;
return 1;
}
+ } else {
+ if (mt == SSL3_MT_HELLO_RETRY_REQUEST) {
+ st->hand_state = TLS_ST_CR_HELLO_RETRY_REQUEST;
+ return 1;
+ }
}
break;
*/
/*
- * Note: There are no cases for TLS_ST_BEFORE or TLS_ST_CW_CLNT_HELLO,
- * because we haven't negotiated TLSv1.3 yet at that point. They are
- * handled by ossl_statem_client_write_transition().
+ * Note: There are no cases for TLS_ST_BEFORE because we haven't negotiated
+ * TLSv1.3 yet at that point. They are handled by
+ * ossl_statem_client_write_transition().
*/
switch (st->hand_state) {
default:
/* Shouldn't happen */
return WRITE_TRAN_ERROR;
+ case TLS_ST_CW_CLNT_HELLO:
+ /* We only hit this in the case of HelloRetryRequest */
+ return WRITE_TRAN_FINISHED;
+
+ case TLS_ST_CR_HELLO_RETRY_REQUEST:
+ st->hand_state = TLS_ST_CW_CLNT_HELLO;
+ return WRITE_TRAN_CONTINUE;
+
case TLS_ST_CR_FINISHED:
st->hand_state = (s->s3->tmp.cert_req != 0) ? TLS_ST_CW_CERT
: TLS_ST_CW_FINISHED;
case DTLS_ST_CR_HELLO_VERIFY_REQUEST:
return HELLO_VERIFY_REQUEST_MAX_LENGTH;
+ case TLS_ST_CR_HELLO_RETRY_REQUEST:
+ return HELLO_RETRY_REQUEST_MAX_LENGTH;
+
case TLS_ST_CR_CERT:
return s->max_cert_list;
case DTLS_ST_CR_HELLO_VERIFY_REQUEST:
return dtls_process_hello_verify(s, pkt);
+ case TLS_ST_CR_HELLO_RETRY_REQUEST:
+ return tls_process_hello_retry_request(s, pkt);
+
case TLS_ST_CR_CERT:
return tls_process_server_certificate(s, pkt);
return MSG_PROCESS_ERROR;
}
+static MSG_PROCESS_RETURN tls_process_hello_retry_request(SSL *s, PACKET *pkt)
+{
+ unsigned int sversion;
+ int errorcode;
+ RAW_EXTENSION *extensions = NULL;
+ int al;
+ PACKET extpkt;
+
+ if (!PACKET_get_net_2(pkt, &sversion)) {
+ al = SSL_AD_DECODE_ERROR;
+ SSLerr(SSL_F_TLS_PROCESS_HELLO_RETRY_REQUEST, SSL_R_LENGTH_MISMATCH);
+ goto f_err;
+ }
+
+ s->hello_retry_request = 1;
+
+ /* This will fail if it doesn't choose TLSv1.3+ */
+ errorcode = ssl_choose_client_version(s, sversion);
+ if (errorcode != 0) {
+ al = SSL_AD_PROTOCOL_VERSION;
+ SSLerr(SSL_F_TLS_PROCESS_HELLO_RETRY_REQUEST, errorcode);
+ goto f_err;
+ }
+
+ if (!PACKET_as_length_prefixed_2(pkt, &extpkt)) {
+ al = SSL_AD_DECODE_ERROR;
+ SSLerr(SSL_F_TLS_PROCESS_HELLO_RETRY_REQUEST, SSL_R_BAD_LENGTH);
+ goto f_err;
+ }
+
+ if (!tls_collect_extensions(s, &extpkt, EXT_TLS1_3_HELLO_RETRY_REQUEST,
+ &extensions, &al)
+ || !tls_parse_all_extensions(s, EXT_TLS1_3_HELLO_RETRY_REQUEST,
+ extensions, NULL, 0, &al))
+ goto f_err;
+
+ OPENSSL_free(extensions);
+
+ return MSG_PROCESS_FINISHED_READING;
+ f_err:
+ ssl3_send_alert(s, SSL3_AL_FATAL, al);
+ ossl_statem_set_error(s);
+ OPENSSL_free(extensions);
+ return MSG_PROCESS_ERROR;
+}
+
MSG_PROCESS_RETURN tls_process_server_certificate(SSL *s, PACKET *pkt)
{
int al, i, ret = MSG_PROCESS_ERROR, exp_idx;
SSL_R_UNKNOWN_CERTIFICATE_TYPE);
goto f_err;
}
-
- exp_idx = ssl_cipher_get_cert_index(s->s3->tmp.new_cipher);
- if (exp_idx >= 0 && i != exp_idx
- && (exp_idx != SSL_PKEY_GOST_EC ||
- (i != SSL_PKEY_GOST12_512 && i != SSL_PKEY_GOST12_256
- && i != SSL_PKEY_GOST01))) {
- x = NULL;
- al = SSL_AD_ILLEGAL_PARAMETER;
- SSLerr(SSL_F_TLS_PROCESS_SERVER_CERTIFICATE,
- SSL_R_WRONG_CERTIFICATE_TYPE);
- goto f_err;
+ /*
+ * Check certificate type is consistent with ciphersuite. For TLS 1.3
+ * skip check since TLS 1.3 ciphersuites can be used with any certificate
+ * type.
+ */
+ if (!SSL_IS_TLS13(s)) {
+ exp_idx = ssl_cipher_get_cert_index(s->s3->tmp.new_cipher);
+ if (exp_idx >= 0 && i != exp_idx
+ && (exp_idx != SSL_PKEY_GOST_EC ||
+ (i != SSL_PKEY_GOST12_512 && i != SSL_PKEY_GOST12_256
+ && i != SSL_PKEY_GOST01))) {
+ x = NULL;
+ al = SSL_AD_ILLEGAL_PARAMETER;
+ SSLerr(SSL_F_TLS_PROCESS_SERVER_CERTIFICATE,
+ SSL_R_WRONG_CERTIFICATE_TYPE);
+ goto f_err;
+ }
}
s->session->peer_type = i;
MSG_PROCESS_RETURN tls_process_key_exchange(SSL *s, PACKET *pkt)
{
- int al = -1, ispss = 0;
+ int al = -1;
long alg_k;
EVP_PKEY *pkey = NULL;
EVP_MD_CTX *md_ctx = NULL;
SSLerr(SSL_F_TLS_PROCESS_KEY_EXCHANGE, SSL_R_LENGTH_TOO_SHORT);
goto err;
}
- rv = tls12_check_peer_sigalg(&md, s, sigalg, pkey);
+ rv = tls12_check_peer_sigalg(s, sigalg, pkey);
if (rv == -1) {
al = SSL_AD_INTERNAL_ERROR;
goto err;
al = SSL_AD_DECODE_ERROR;
goto err;
}
- ispss = SIGID_IS_PSS(sigalg);
#ifdef SSL_DEBUG
fprintf(stderr, "USING TLSv1.2 HASH %s\n", EVP_MD_name(md));
#endif
- } else if (EVP_PKEY_id(pkey) == EVP_PKEY_RSA) {
- md = EVP_md5_sha1();
- } else {
- md = EVP_sha1();
+ } else if (!tls1_set_peer_legacy_sigalg(s, pkey)) {
+ al = SSL_AD_INTERNAL_ERROR;
+ goto err;
}
+ md = ssl_md(s->s3->tmp.peer_sigalg->hash_idx);
+
if (!PACKET_get_length_prefixed_2(pkt, &signature)
|| PACKET_remaining(pkt) != 0) {
al = SSL_AD_DECODE_ERROR;
SSLerr(SSL_F_TLS_PROCESS_KEY_EXCHANGE, ERR_R_EVP_LIB);
goto err;
}
- if (ispss) {
+ if (SSL_USE_PSS(s)) {
if (EVP_PKEY_CTX_set_rsa_padding(pctx, RSA_PKCS1_PSS_PADDING) <= 0
- /* -1 here means set saltlen to the digest len */
- || EVP_PKEY_CTX_set_rsa_pss_saltlen(pctx, -1) <= 0) {
+ || EVP_PKEY_CTX_set_rsa_pss_saltlen(pctx,
+ RSA_PSS_SALTLEN_DIGEST) <= 0) {
al = SSL_AD_INTERNAL_ERROR;
SSLerr(SSL_F_TLS_PROCESS_KEY_EXCHANGE, ERR_R_EVP_LIB);
goto err;
|| (SSL_IS_TLS13(s) && !PACKET_get_net_4(pkt, &age_add))
|| !PACKET_get_net_2(pkt, &ticklen)
|| (!SSL_IS_TLS13(s) && PACKET_remaining(pkt) != ticklen)
- || (SSL_IS_TLS13(s) && (ticklen == 0
- || PACKET_remaining(pkt) < ticklen))) {
+ || (SSL_IS_TLS13(s)
+ && (ticklen == 0 || PACKET_remaining(pkt) < ticklen))) {
SSLerr(SSL_F_TLS_PROCESS_NEW_SESSION_TICKET, SSL_R_LENGTH_MISMATCH);
goto f_err;
}
/* This is a standalone message in TLSv1.3, so there is no more to read */
if (SSL_IS_TLS13(s)) {
+ OPENSSL_free(exts);
ssl_update_cache(s, SSL_SESS_CACHE_CLIENT);
return MSG_PROCESS_FINISHED_READING;
}
ssl3_send_alert(s, SSL3_AL_FATAL, al);
err:
ossl_statem_set_error(s);
+ OPENSSL_free(exts);
return MSG_PROCESS_ERROR;
}
*/
static int ssl3_check_client_certificate(SSL *s)
{
- if (!s->cert || !s->cert->key->x509 || !s->cert->key->privatekey)
- return 0;
/* If no suitable signature algorithm can't use certificate */
- if (SSL_USE_SIGALGS(s) && !s->s3->tmp.md[s->cert->key - s->cert->pkeys])
+ if (!tls_choose_sigalg(s, NULL) || s->s3->tmp.sigalg == NULL)
return 0;
/*
* If strict mode check suitability of chain before using it. This also
}
/*
- * This is a historical discrepancy maintained for compatibility
- * reasons. If a TLS client receives a HelloRequest it will attempt
- * an abbreviated handshake. However if a DTLS client receives a
- * HelloRequest it will do a full handshake.
+ * This is a historical discrepancy (not in the RFC) maintained for
+ * compatibility reasons. If a TLS client receives a HelloRequest it will
+ * attempt an abbreviated handshake. However if a DTLS client receives a
+ * HelloRequest it will do a full handshake. Either behaviour is reasonable
+ * but doing one for TLS and another for DTLS is odd.
*/
if (SSL_IS_DTLS(s))
SSL_renegotiate(s);
projects / openssl.git / blobdiff