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authortb <tb@openbsd.org>2020-09-01 05:32:11 +0000
committertb <tb@openbsd.org>2020-09-01 05:32:11 +0000
commit9a6864026c29fd1cdd96f6e673b2ced46dbc03cc (patch)
treedb8e6b9fe356245c7d5dae96ebb5ee4a81a8713a
parentUse sysctl_bounded_args for simple cases in cpu_sysctl on loongson (diff)
downloadwireguard-openbsd-9a6864026c29fd1cdd96f6e673b2ced46dbc03cc.tar.xz
wireguard-openbsd-9a6864026c29fd1cdd96f6e673b2ced46dbc03cc.zip
simplify tls1_process_ticket() exit path
tls1_process_ticket() - the only caller of tls_decrypt_ticket() - ends in a switch over the return value of tls_decrypt_ticket() to decide whether or not to set s->internal->tlsext_ticket_expected = 1. Since tls_decrypt_ticket() already knows what it will return and partly bases its decision on what to return on whether or not the ticket needs to be renewed, it can also take care of setting this flag. This way we don't need to have a confusing switch that conflates some return values and sets this flag. Moreover, we can get rid of the ugly TLS1_TICKET_DECRYPTED_RENEW whose only purpose is to signal that the flag should be set. ok jsing
-rw-r--r--lib/libssl/ssl_locl.h3
-rw-r--r--lib/libssl/t1_lib.c23
2 files changed, 7 insertions, 19 deletions
diff --git a/lib/libssl/ssl_locl.h b/lib/libssl/ssl_locl.h
index 18ff5b0c30d..2f8ba1fc091 100644
--- a/lib/libssl/ssl_locl.h
+++ b/lib/libssl/ssl_locl.h
@@ -1,4 +1,4 @@
-/* $OpenBSD: ssl_locl.h,v 1.286 2020/08/31 14:34:01 tb Exp $ */
+/* $OpenBSD: ssl_locl.h,v 1.287 2020/09/01 05:32:11 tb Exp $ */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
@@ -1402,7 +1402,6 @@ int ssl_check_serverhello_tlsext(SSL *s);
#define TLS1_TICKET_EMPTY 1
#define TLS1_TICKET_NOT_DECRYPTED 2
#define TLS1_TICKET_DECRYPTED 3
-#define TLS1_TICKET_DECRYPTED_RENEW 4
int tls1_process_ticket(SSL *s, CBS *session_id, CBS *ext_block,
int *alert, SSL_SESSION **ret);
diff --git a/lib/libssl/t1_lib.c b/lib/libssl/t1_lib.c
index b0fc630236b..64e64bf9023 100644
--- a/lib/libssl/t1_lib.c
+++ b/lib/libssl/t1_lib.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: t1_lib.c,v 1.171 2020/08/31 14:34:01 tb Exp $ */
+/* $OpenBSD: t1_lib.c,v 1.172 2020/09/01 05:32:11 tb Exp $ */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
@@ -844,18 +844,7 @@ tls1_process_ticket(SSL *s, CBS *session_id, CBS *ext_block, int *alert,
return TLS1_TICKET_NOT_DECRYPTED;
}
- switch (tls_decrypt_ticket(s, session_id, &ext_data, alert, ret)) {
- case TLS1_TICKET_NOT_DECRYPTED:
- s->internal->tlsext_ticket_expected = 1;
- return TLS1_TICKET_NOT_DECRYPTED;
- case TLS1_TICKET_DECRYPTED:
- return TLS1_TICKET_DECRYPTED;
- case TLS1_TICKET_DECRYPTED_RENEW:
- s->internal->tlsext_ticket_expected = 1;
- return TLS1_TICKET_DECRYPTED;
- default:
- return TLS1_TICKET_FATAL_ERROR;
- }
+ return tls_decrypt_ticket(s, session_id, &ext_data, alert, ret);
}
/* tls_decrypt_ticket attempts to decrypt a session ticket.
@@ -869,7 +858,6 @@ tls1_process_ticket(SSL *s, CBS *session_id, CBS *ext_block, int *alert,
* TLS1_TICKET_FATAL_ERROR: error from parsing or decrypting the ticket.
* TLS1_TICKET_NOT_DECRYPTED: the ticket couldn't be decrypted.
* TLS1_TICKET_DECRYPTED: a ticket was decrypted and *psess was set.
- * TLS1_TICKET_DECRYPTED_RENEW: same as 3, but the ticket needs to be renewed.
*/
static int
tls_decrypt_ticket(SSL *s, CBS *session_id, CBS *ticket, int *alert,
@@ -1017,13 +1005,14 @@ tls_decrypt_ticket(SSL *s, CBS *session_id, CBS *ticket, int *alert,
sess = NULL;
if (renew_ticket)
- ret = TLS1_TICKET_DECRYPTED_RENEW;
- else
- ret = TLS1_TICKET_DECRYPTED;
+ s->internal->tlsext_ticket_expected = 1;
+
+ ret = TLS1_TICKET_DECRYPTED;
goto done;
derr:
+ s->internal->tlsext_ticket_expected = 1;
ret = TLS1_TICKET_NOT_DECRYPTED;
goto done;