diff options
Diffstat (limited to 'ssl/statem/statem_clnt.c')
| -rw-r--r-- | ssl/statem/statem_clnt.c | 75 |
1 files changed, 61 insertions, 14 deletions
diff --git a/ssl/statem/statem_clnt.c b/ssl/statem/statem_clnt.c index e79bd7b9c0..5050233866 100644 --- a/ssl/statem/statem_clnt.c +++ b/ssl/statem/statem_clnt.c @@ -1,5 +1,5 @@ /* - * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved. + * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved. * Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved * Copyright 2005 Nokia. All rights reserved. * @@ -160,6 +160,26 @@ static int ossl_statem_client13_read_transition(SSL *s, int mt) st->hand_state = TLS_ST_CR_KEY_UPDATE; return 1; } + if (mt == SSL3_MT_CERTIFICATE_REQUEST) { +#if DTLS_MAX_VERSION != DTLS1_2_VERSION +# error TODO(DTLS1.3): Restore digest for PHA before adding message. +#endif + if (!SSL_IS_DTLS(s) && s->post_handshake_auth == SSL_PHA_EXT_SENT) { + s->post_handshake_auth = SSL_PHA_REQUESTED; + /* + * In TLS, this is called before the message is added to the + * digest. In DTLS, this is expected to be called after adding + * to the digest. Either move the digest restore, or add the + * message here after the swap, or do it after the clientFinished? + */ + if (!tls13_restore_handshake_digest_for_pha(s)) { + /* SSLfatal() already called */ + return 0; + } + st->hand_state = TLS_ST_CR_CERT_REQ; + return 1; + } + } break; } @@ -375,6 +395,13 @@ static WRITE_TRAN ossl_statem_client13_write_transition(SSL *s) * ossl_statem_client_write_transition(). */ switch (st->hand_state) { + case TLS_ST_CR_CERT_REQ: + if (s->post_handshake_auth == SSL_PHA_REQUESTED) { + st->hand_state = TLS_ST_CW_CERT; + return WRITE_TRAN_CONTINUE; + } + /* Fall through */ + default: /* Shouldn't happen */ SSLfatal(s, SSL_AD_INTERNAL_ERROR, @@ -798,11 +825,17 @@ WORK_STATE ossl_statem_client_post_work(SSL *s, WORK_STATE wst) return WORK_MORE_B; if (SSL_IS_TLS13(s)) { - if (!s->method->ssl3_enc->change_cipher_state(s, - SSL3_CC_APPLICATION | SSL3_CHANGE_CIPHER_CLIENT_WRITE)) { + if (!tls13_save_handshake_digest_for_pha(s)) { /* SSLfatal() already called */ return WORK_ERROR; } + if (s->post_handshake_auth != SSL_PHA_REQUESTED) { + if (!s->method->ssl3_enc->change_cipher_state(s, + SSL3_CC_APPLICATION | SSL3_CHANGE_CIPHER_CLIENT_WRITE)) { + /* SSLfatal() already called */ + return WORK_ERROR; + } + } } break; @@ -2399,9 +2432,11 @@ MSG_PROCESS_RETURN tls_process_certificate_request(SSL *s, PACKET *pkt) OPENSSL_free(s->s3->tmp.ctype); s->s3->tmp.ctype = NULL; s->s3->tmp.ctype_len = 0; + OPENSSL_free(s->pha_context); + s->pha_context = NULL; - /* TODO(TLS1.3) need to process request context, for now ignore */ - if (!PACKET_get_length_prefixed_1(pkt, &reqctx)) { + if (!PACKET_get_length_prefixed_1(pkt, &reqctx) || + !PACKET_memdup(&reqctx, &s->pha_context, &s->pha_context_len)) { SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_TLS_PROCESS_CERTIFICATE_REQUEST, SSL_R_LENGTH_MISMATCH); @@ -3332,6 +3367,7 @@ static int ssl3_check_client_certificate(SSL *s) if (s->cert->cert_flags & SSL_CERT_FLAGS_CHECK_TLS_STRICT && !tls1_check_chain(s, NULL, NULL, NULL, -2)) return 0; + return 1; } @@ -3357,8 +3393,12 @@ WORK_STATE tls_prepare_client_certificate(SSL *s, WORK_STATE wst) } s->rwstate = SSL_NOTHING; } - if (ssl3_check_client_certificate(s)) + if (ssl3_check_client_certificate(s)) { + if (s->post_handshake_auth == SSL_PHA_REQUESTED) { + return WORK_FINISHED_STOP; + } return WORK_FINISHED_CONTINUE; + } /* Fall through to WORK_MORE_B */ wst = WORK_MORE_B; @@ -3403,6 +3443,8 @@ WORK_STATE tls_prepare_client_certificate(SSL *s, WORK_STATE wst) } } + if (s->post_handshake_auth == SSL_PHA_REQUESTED) + return WORK_FINISHED_STOP; return WORK_FINISHED_CONTINUE; } @@ -3414,14 +3456,19 @@ WORK_STATE tls_prepare_client_certificate(SSL *s, WORK_STATE wst) int tls_construct_client_certificate(SSL *s, WPACKET *pkt) { - /* - * TODO(TLS1.3): For now we must put an empty context. Needs to be filled in - * later - */ - if (SSL_IS_TLS13(s) && !WPACKET_put_bytes_u8(pkt, 0)) { - SSLfatal(s, SSL_AD_INTERNAL_ERROR, - SSL_F_TLS_CONSTRUCT_CLIENT_CERTIFICATE, ERR_R_INTERNAL_ERROR); - return 0; + if (SSL_IS_TLS13(s)) { + if (s->pha_context == NULL) { + /* no context available, add 0-length context */ + if (!WPACKET_put_bytes_u8(pkt, 0)) { + SSLfatal(s, SSL_AD_INTERNAL_ERROR, + SSL_F_TLS_CONSTRUCT_CLIENT_CERTIFICATE, ERR_R_INTERNAL_ERROR); + return 0; + } + } else if (!WPACKET_sub_memcpy_u8(pkt, s->pha_context, s->pha_context_len)) { + SSLfatal(s, SSL_AD_INTERNAL_ERROR, + SSL_F_TLS_CONSTRUCT_CLIENT_CERTIFICATE, ERR_R_INTERNAL_ERROR); + return 0; + } } if (!ssl3_output_cert_chain(s, pkt, (s->s3->tmp.cert_req == 2) ? NULL |