diff options
author | Tomas Mraz <tomas@openssl.org> | 2022-08-29 12:27:27 +0200 |
---|---|---|
committer | Pauli <pauli@openssl.org> | 2022-09-01 18:07:27 +1000 |
commit | 3d623896eb50f5b15d3ef8f53b9f1e5c7546695a (patch) | |
tree | ca3046c67e95d1c20c1eba2dd69f732be175f314 /ssl | |
parent | 664e096cf94b1a2f72b3c562dd93db7e13b235f4 (diff) |
Remove unused dtls1_bitmap.c
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19088)
Diffstat (limited to 'ssl')
-rw-r--r-- | ssl/record/dtls1_bitmap.c | 78 |
1 files changed, 0 insertions, 78 deletions
diff --git a/ssl/record/dtls1_bitmap.c b/ssl/record/dtls1_bitmap.c deleted file mode 100644 index e94ce91384..0000000000 --- a/ssl/record/dtls1_bitmap.c +++ /dev/null @@ -1,78 +0,0 @@ -/* - * Copyright 2005-2016 The OpenSSL Project Authors. All Rights Reserved. - * - * Licensed under the Apache License 2.0 (the "License"). You may not use - * this file except in compliance with the License. You can obtain a copy - * in the file LICENSE in the source distribution or at - * https://www.openssl.org/source/license.html - */ - -#include "../ssl_local.h" -#include "record_local.h" - -/* mod 128 saturating subtract of two 64-bit values in big-endian order */ -static int satsub64be(const unsigned char *v1, const unsigned char *v2) -{ - int64_t ret; - uint64_t l1, l2; - - n2l8(v1, l1); - n2l8(v2, l2); - - ret = l1 - l2; - - /* We do not permit wrap-around */ - if (l1 > l2 && ret < 0) - return 128; - else if (l2 > l1 && ret > 0) - return -128; - - if (ret > 128) - return 128; - else if (ret < -128) - return -128; - else - return (int)ret; -} - -int dtls1_record_replay_check(SSL_CONNECTION *s, DTLS1_BITMAP *bitmap) -{ - int cmp; - unsigned int shift; - const unsigned char *seq = s->rlayer.read_sequence; - - cmp = satsub64be(seq, bitmap->max_seq_num); - if (cmp > 0) { - SSL3_RECORD_set_seq_num(RECORD_LAYER_get_rrec(&s->rlayer), seq); - return 1; /* this record in new */ - } - shift = -cmp; - if (shift >= sizeof(bitmap->map) * 8) - return 0; /* stale, outside the window */ - else if (bitmap->map & (1UL << shift)) - return 0; /* record previously received */ - - SSL3_RECORD_set_seq_num(RECORD_LAYER_get_rrec(&s->rlayer), seq); - return 1; -} - -void dtls1_record_bitmap_update(SSL_CONNECTION *s, DTLS1_BITMAP *bitmap) -{ - int cmp; - unsigned int shift; - const unsigned char *seq = RECORD_LAYER_get_read_sequence(&s->rlayer); - - cmp = satsub64be(seq, bitmap->max_seq_num); - if (cmp > 0) { - shift = cmp; - if (shift < sizeof(bitmap->map) * 8) - bitmap->map <<= shift, bitmap->map |= 1UL; - else - bitmap->map = 1UL; - memcpy(bitmap->max_seq_num, seq, SEQ_NUM_SIZE); - } else { - shift = -cmp; - if (shift < sizeof(bitmap->map) * 8) - bitmap->map |= 1UL << shift; - } -} |