static const SSL_METHOD *dtls1_get_server_method(int ver)
{
- if (ver == DTLS1_VERSION)
- return (DTLSv1_server_method());
+ if (ver == DTLS_ANY_VERSION)
+ return DTLS_server_method();
+ else if (ver == DTLS1_VERSION)
+ return DTLSv1_server_method();
else if (ver == DTLS1_2_VERSION)
- return (DTLSv1_2_server_method());
+ return DTLSv1_2_server_method();
else
- return (NULL);
+ return NULL;
}
IMPLEMENT_dtls1_meth_func(DTLS1_VERSION,
ssl_undefined_function,
dtls1_get_server_method, DTLSv1_enc_data)
- IMPLEMENT_dtls1_meth_func(DTLS1_2_VERSION,
+IMPLEMENT_dtls1_meth_func(DTLS1_2_VERSION,
DTLSv1_2_server_method,
dtls1_accept,
ssl_undefined_function,
dtls1_get_server_method, DTLSv1_2_enc_data)
- IMPLEMENT_dtls1_meth_func(DTLS_ANY_VERSION,
+IMPLEMENT_dtls1_meth_func(DTLS_ANY_VERSION,
DTLS_server_method,
dtls1_accept,
ssl_undefined_function,
if (s->init_buf == NULL) {
if ((buf = BUF_MEM_new()) == NULL) {
ret = -1;
+ s->state = SSL_ST_ERR;
goto end;
}
if (!BUF_MEM_grow(buf, SSL3_RT_MAX_PLAIN_LENGTH)) {
BUF_MEM_free(buf);
ret = -1;
+ s->state = SSL_ST_ERR;
goto end;
}
s->init_buf = buf;
if (!ssl3_setup_buffers(s)) {
ret = -1;
+ s->state = SSL_ST_ERR;
goto end;
}
#endif
if (!ssl_init_wbio_buffer(s, 1)) {
ret = -1;
+ s->state = SSL_ST_ERR;
goto end;
}
- ssl3_init_finished_mac(s);
+ if (!ssl3_init_finished_mac(s)) {
+ ret = -1;
+ s->state = SSL_ST_ERR;
+ goto end;
+ }
+
s->state = SSL3_ST_SR_CLNT_HELLO_A;
s->ctx->stats.sess_accept++;
+ } else if (!s->s3->send_connection_binding &&
+ !(s->options &
+ SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION)) {
+ /*
+ * Server attempting to renegotiate with client that doesn't
+ * support secure renegotiation.
+ */
+ SSLerr(SSL_F_DTLS1_ACCEPT,
+ SSL_R_UNSAFE_LEGACY_RENEGOTIATION_DISABLED);
+ ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_HANDSHAKE_FAILURE);
+ ret = -1;
+ s->state = SSL_ST_ERR;
+ goto end;
} else {
/*
* s->state == SSL_ST_RENEGOTIATE, we will just send a
case SSL3_ST_SW_HELLO_REQ_B:
s->shutdown = 0;
- dtls1_clear_record_buffer(s);
+ dtls1_clear_sent_buffer(s);
dtls1_start_timer(s);
ret = ssl3_send_hello_request(s);
if (ret <= 0)
s->state = SSL3_ST_SW_FLUSH;
s->init_num = 0;
- ssl3_init_finished_mac(s);
+ if (!ssl3_init_finished_mac(s)) {
+ ret = -1;
+ s->state = SSL_ST_ERR;
+ goto end;
+ }
break;
case SSL3_ST_SW_HELLO_REQ_C:
/* HelloVerifyRequest resets Finished MAC */
if (s->version != DTLS1_BAD_VER)
- ssl3_init_finished_mac(s);
+ if (!ssl3_init_finished_mac(s)) {
+ ret = -1;
+ s->state = SSL_ST_ERR;
+ goto end;
+ }
break;
#ifndef OPENSSL_NO_SCTP
snprintf((char *)labelbuffer, sizeof(DTLS1_SCTP_AUTH_LABEL),
DTLS1_SCTP_AUTH_LABEL);
- SSL_export_keying_material(s, sctpauthkey,
- sizeof(sctpauthkey), labelbuffer,
- sizeof(labelbuffer), NULL, 0, 0);
+ if (SSL_export_keying_material(s, sctpauthkey,
+ sizeof(sctpauthkey), labelbuffer,
+ sizeof(labelbuffer), NULL, 0, 0) <= 0) {
+ ret = -1;
+ s->state = SSL_ST_ERR;
+ goto end;
+ }
BIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_SCTP_ADD_AUTH_KEY,
sizeof(sctpauthkey), sctpauthkey);
snprintf((char *)labelbuffer, sizeof(DTLS1_SCTP_AUTH_LABEL),
DTLS1_SCTP_AUTH_LABEL);
- SSL_export_keying_material(s, sctpauthkey,
+ if (SSL_export_keying_material(s, sctpauthkey,
sizeof(sctpauthkey), labelbuffer,
- sizeof(labelbuffer), NULL, 0, 0);
+ sizeof(labelbuffer), NULL, 0, 0) <= 0) {
+ ret = -1;
+ s->state = SSL_ST_ERR;
+ goto end;
+ }
BIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_SCTP_ADD_AUTH_KEY,
sizeof(sctpauthkey), sctpauthkey);
*/
if (!s->s3->handshake_buffer) {
SSLerr(SSL_F_DTLS1_ACCEPT, ERR_R_INTERNAL_ERROR);
+ s->state = SSL_ST_ERR;
return -1;
}
s->s3->flags |= TLS1_FLAGS_KEEP_HANDSHAKE;
- if (!ssl3_digest_cached_records(s))
+ if (!ssl3_digest_cached_records(s)) {
+ s->state = SSL_ST_ERR;
return -1;
+ }
} else {
s->state = SSL3_ST_SR_CERT_VRFY_A;
s->init_num = 0;
case SSL3_ST_SR_CERT_VRFY_A:
case SSL3_ST_SR_CERT_VRFY_B:
- /*
- * This *should* be the first time we enable CCS, but be
- * extra careful about surrounding code changes. We need
- * to set this here because we don't know if we're
- * expecting a CertificateVerify or not.
- */
- if (!s->s3->change_cipher_spec)
- s->d1->change_cipher_spec_ok = 1;
- /* we should decide if we expected this one */
ret = ssl3_get_cert_verify(s);
if (ret <= 0)
goto end;
case SSL3_ST_SR_FINISHED_A:
case SSL3_ST_SR_FINISHED_B:
/*
- * Enable CCS for resumed handshakes.
- * In a full handshake, we end up here through
- * SSL3_ST_SR_CERT_VRFY_B, so change_cipher_spec_ok was
- * already set. Receiving a CCS clears the flag, so make
- * sure not to re-enable it to ban duplicates.
+ * Enable CCS. Receiving a CCS clears the flag, so make
+ * sure not to re-enable it to ban duplicates. This *should* be the
+ * first time we have received one - but we check anyway to be
+ * cautious.
* s->s3->change_cipher_spec is set when a CCS is
* processed in d1_pkt.c, and remains set until
* the client's Finished message is read.
s->session->cipher = s->s3->tmp.new_cipher;
if (!s->method->ssl3_enc->setup_key_block(s)) {
ret = -1;
+ s->state = SSL_ST_ERR;
goto end;
}
SSL3_CHANGE_CIPHER_SERVER_WRITE))
{
ret = -1;
+ s->state = SSL_ST_ERR;
goto end;
}
/* next message is server hello */
s->d1->handshake_write_seq = 0;
s->d1->next_handshake_write_seq = 0;
+ dtls1_clear_received_buffer(s);
goto end;
/* break; */
+ case SSL_ST_ERR:
default:
SSLerr(SSL_F_DTLS1_ACCEPT, SSL_R_UNKNOWN_STATE);
ret = -1;
&(s->d1->cookie_len)) == 0) {
SSLerr(SSL_F_DTLS1_SEND_HELLO_VERIFY_REQUEST,
ERR_R_INTERNAL_ERROR);
+ s->state = SSL_ST_ERR;
return 0;
}
projects / oweals / openssl.git / blobdiff