95c29f3cd1
Initial fork from f2d678e6e89b6508147086610e985d4e8416e867 (1.0.2 beta). (This change contains substantial changes from the original and effectively starts a new history.)
412 lines
11 KiB
C
412 lines
11 KiB
C
/* Copyright (c) 2014, Google Inc.
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
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* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
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#include <stdio.h>
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#include <stdlib.h>
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#include <openssl/bytestring.h>
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static int test_skip() {
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static const uint8_t kData[] = {1, 2, 3};
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CBS data;
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CBS_init(&data, kData, sizeof(kData));
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return CBS_len(&data) == 3 &&
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CBS_skip(&data, 1) &&
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CBS_len(&data) == 2 &&
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CBS_skip(&data, 2) &&
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CBS_len(&data) == 0 &&
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!CBS_skip(&data, 1);
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}
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static int test_get_u() {
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static const uint8_t kData[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
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uint8_t u8;
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uint16_t u16;
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uint32_t u32;
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CBS data;
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CBS_init(&data, kData, sizeof(kData));
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return CBS_get_u8(&data, &u8) &&
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u8 == 1 &&
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CBS_get_u16(&data, &u16) &&
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u16 == 0x203 &&
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CBS_get_u24(&data, &u32) &&
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u32 == 0x40506 &&
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CBS_get_u32(&data, &u32) &&
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u32 == 0x708090a &&
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!CBS_get_u8(&data, &u8);
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}
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static int test_get_prefixed() {
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static const uint8_t kData[] = {1, 2, 0, 2, 3, 4, 0, 0, 3, 3, 2, 1};
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uint8_t u8;
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uint16_t u16;
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uint32_t u32;
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CBS data, prefixed;
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CBS_init(&data, kData, sizeof(kData));
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return CBS_get_u8_length_prefixed(&data, &prefixed) &&
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CBS_len(&prefixed) == 1 &&
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CBS_get_u8(&prefixed, &u8) &&
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u8 == 2 &&
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CBS_get_u16_length_prefixed(&data, &prefixed) &&
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CBS_len(&prefixed) == 2 &&
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CBS_get_u16(&prefixed, &u16) &&
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u16 == 0x304 &&
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CBS_get_u24_length_prefixed(&data, &prefixed) &&
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CBS_len(&prefixed) == 3 &&
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CBS_get_u24(&prefixed, &u32) &&
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u32 == 0x30201;
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}
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static int test_get_prefixed_bad() {
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static const uint8_t kData1[] = {2, 1};
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static const uint8_t kData2[] = {0, 2, 1};
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static const uint8_t kData3[] = {0, 0, 2, 1};
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CBS data, prefixed;
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CBS_init(&data, kData1, sizeof(kData1));
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if (CBS_get_u8_length_prefixed(&data, &prefixed)) {
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return 0;
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}
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CBS_init(&data, kData2, sizeof(kData2));
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if (CBS_get_u16_length_prefixed(&data, &prefixed)) {
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return 0;
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}
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CBS_init(&data, kData3, sizeof(kData3));
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if (CBS_get_u24_length_prefixed(&data, &prefixed)) {
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return 0;
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}
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return 1;
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}
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static int test_get_asn1() {
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static const uint8_t kData1[] = {0x30, 2, 1, 2};
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static const uint8_t kData2[] = {0x30, 3, 1, 2};
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static const uint8_t kData3[] = {0x30, 0x80};
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static const uint8_t kData4[] = {0x30, 0x81, 1, 1};
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static const uint8_t kData5[] = {0x30, 0x82, 0, 1, 1};
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CBS data, contents;
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CBS_init(&data, kData1, sizeof(kData1));
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if (!CBS_get_asn1(&data, &contents, 0x30) ||
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CBS_len(&contents) != 2 ||
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memcmp(CBS_data(&contents), "\x01\x02", 2) != 0) {
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return 0;
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}
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CBS_init(&data, kData2, sizeof(kData2));
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/* data is truncated */
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if (CBS_get_asn1(&data, &contents, 0x30)) {
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return 0;
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}
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CBS_init(&data, kData3, sizeof(kData3));
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/* zero byte length of length */
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if (CBS_get_asn1(&data, &contents, 0x30)) {
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return 0;
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}
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CBS_init(&data, kData4, sizeof(kData4));
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/* long form mistakenly used. */
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if (CBS_get_asn1(&data, &contents, 0x30)) {
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return 0;
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}
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CBS_init(&data, kData5, sizeof(kData5));
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/* length takes too many bytes. */
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if (CBS_get_asn1(&data, &contents, 0x30)) {
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return 0;
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}
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CBS_init(&data, kData1, sizeof(kData1));
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/* wrong tag. */
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if (CBS_get_asn1(&data, &contents, 0x31)) {
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return 0;
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}
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return 1;
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}
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static int test_get_indef() {
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static const uint8_t kData1[] = {0x30, 0x80, 0x00, 0x00};
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static const uint8_t kDataWithoutEOC[] = {0x30, 0x80, 0x01, 0x00};
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static const uint8_t kDataWithBadInternalLength[] = {0x30, 0x80, 0x01, 0x01};
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static const uint8_t kDataNested[] = {0x30, 0x80, 0x30, 0x80, 0x30, 0x80,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
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CBS data, contents;
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CBS_init(&data, kData1, sizeof(kData1));
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if (CBS_get_asn1(&data, &contents, 0x30)) {
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/* Indefinite lengths should not be supported in DER mode. */
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fprintf(stderr, "Indefinite length parsed by CBS_get_asn1.\n");
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return 0;
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}
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if (!CBS_get_asn1_ber(&data, &contents, 0x30) ||
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CBS_len(&contents) != 0 ||
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CBS_len(&data) != 0) {
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fprintf(stderr, "Simple indefinite length failed.\n");
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return 0;
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}
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CBS_init(&data, kDataWithoutEOC, sizeof(kDataWithoutEOC));
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if (CBS_get_asn1_ber(&data, &contents, 0x30)) {
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fprintf(stderr, "Parsed without EOC.\n");
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return 0;
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}
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CBS_init(&data, kDataWithBadInternalLength,
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sizeof(kDataWithBadInternalLength));
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if (CBS_get_asn1_ber(&data, &contents, 0x30)) {
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fprintf(stderr, "Parsed with internal length.\n");
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return 0;
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}
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CBS_init(&data, kDataNested, sizeof(kDataNested));
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if (!CBS_get_asn1_ber(&data, &contents, 0x30) ||
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CBS_len(&contents) != 8 ||
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CBS_len(&data) != 0) {
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fprintf(stderr, "Nested indefinite lengths failed.\n");
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return 0;
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}
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return 1;
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}
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static int test_cbb_basic() {
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static const uint8_t kExpected[] = {1, 2, 3, 4, 5, 6, 7, 8};
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uint8_t *buf;
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size_t buf_len;
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int ok;
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CBB cbb;
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if (!CBB_init(&cbb, 100)) {
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return 0;
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}
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CBB_cleanup(&cbb);
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if (!CBB_init(&cbb, 0) ||
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!CBB_add_u8(&cbb, 1) ||
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!CBB_add_u16(&cbb, 0x203) ||
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!CBB_add_u24(&cbb, 0x40506) ||
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!CBB_add_bytes(&cbb, (const uint8_t*) "\x07\x08", 2) ||
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!CBB_finish(&cbb, &buf, &buf_len)) {
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return 0;
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}
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ok = buf_len == sizeof(kExpected) && memcmp(buf, kExpected, buf_len) == 0;
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free(buf);
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return ok;
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}
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static int test_cbb_fixed() {
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CBB cbb;
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uint8_t buf[1];
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uint8_t *out_buf;
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size_t out_size;
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if (!CBB_init_fixed(&cbb, NULL, 0) ||
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CBB_add_u8(&cbb, 1) ||
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!CBB_finish(&cbb, &out_buf, &out_size) ||
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out_buf != NULL ||
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out_size != 0) {
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return 0;
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}
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if (!CBB_init_fixed(&cbb, buf, 1) ||
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!CBB_add_u8(&cbb, 1) ||
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CBB_add_u8(&cbb, 2) ||
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!CBB_finish(&cbb, &out_buf, &out_size) ||
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out_buf != buf ||
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out_size != 1 ||
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buf[0] != 1) {
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return 0;
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}
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return 1;
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}
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static int test_cbb_finish_child() {
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CBB cbb, child;
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uint8_t *out_buf;
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size_t out_size;
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if (!CBB_init(&cbb, 16) ||
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!CBB_add_u8_length_prefixed(&cbb, &child) ||
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CBB_finish(&child, &out_buf, &out_size) ||
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!CBB_finish(&cbb, &out_buf, &out_size) ||
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out_size != 1 ||
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out_buf[0] != 0) {
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return 0;
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}
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free(out_buf);
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return 1;
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}
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static int test_cbb_prefixed() {
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static const uint8_t kExpected[] = {0, 1, 1, 0, 2, 2, 3, 0, 0, 3,
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4, 5, 6, 5, 4, 1, 0, 1, 2};
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uint8_t *buf;
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size_t buf_len;
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CBB cbb, contents, inner_contents, inner_inner_contents;
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int ok;
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if (!CBB_init(&cbb, 0) ||
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!CBB_add_u8_length_prefixed(&cbb, &contents) ||
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!CBB_add_u8_length_prefixed(&cbb, &contents) ||
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!CBB_add_u8(&contents, 1) ||
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!CBB_add_u16_length_prefixed(&cbb, &contents) ||
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!CBB_add_u16(&contents, 0x203) ||
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!CBB_add_u24_length_prefixed(&cbb, &contents) ||
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!CBB_add_u24(&contents, 0x40506) ||
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!CBB_add_u8_length_prefixed(&cbb, &contents) ||
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!CBB_add_u8_length_prefixed(&contents, &inner_contents) ||
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!CBB_add_u8(&inner_contents, 1) ||
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!CBB_add_u16_length_prefixed(&inner_contents, &inner_inner_contents) ||
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!CBB_add_u8(&inner_inner_contents, 2) ||
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!CBB_finish(&cbb, &buf, &buf_len)) {
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return 0;
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}
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ok = buf_len == sizeof(kExpected) && memcmp(buf, kExpected, buf_len) == 0;
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free(buf);
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return ok;
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}
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static int test_cbb_misuse() {
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CBB cbb, child, contents;
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uint8_t *buf;
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size_t buf_len;
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if (!CBB_init(&cbb, 0) ||
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!CBB_add_u8_length_prefixed(&cbb, &child) ||
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!CBB_add_u8(&child, 1) ||
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!CBB_add_u8(&cbb, 2)) {
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return 0;
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}
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/* Since we wrote to |cbb|, |child| is now invalid and attempts to write to
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* it should fail. */
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if (CBB_add_u8(&child, 1) ||
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CBB_add_u16(&child, 1) ||
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CBB_add_u24(&child, 1) ||
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CBB_add_u8_length_prefixed(&child, &contents) ||
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CBB_add_u16_length_prefixed(&child, &contents) ||
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CBB_add_asn1(&child, &contents, 1) ||
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CBB_add_bytes(&child, (const uint8_t*) "a", 1)) {
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fprintf(stderr, "CBB operation on invalid CBB did not fail.\n");
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return 0;
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}
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if (!CBB_finish(&cbb, &buf, &buf_len) ||
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buf_len != 3 ||
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memcmp(buf, "\x01\x01\x02", 3) != 0) {
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return 0;
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}
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free(buf);
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return 1;
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}
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static int test_cbb_asn1() {
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static const uint8_t kExpected[] = {0x30, 3, 1, 2, 3};
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uint8_t *buf, *test_data;
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size_t buf_len;
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CBB cbb, contents, inner_contents;
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if (!CBB_init(&cbb, 0) ||
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!CBB_add_asn1(&cbb, &contents, 0x30) ||
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!CBB_add_bytes(&contents, (const uint8_t*) "\x01\x02\x03", 3) ||
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!CBB_finish(&cbb, &buf, &buf_len)) {
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return 0;
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}
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if (buf_len != sizeof(kExpected) || memcmp(buf, kExpected, buf_len) != 0) {
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return 0;
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}
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free(buf);
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test_data = calloc(1, 100000);
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if (!CBB_init(&cbb, 0) ||
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!CBB_add_asn1(&cbb, &contents, 0x30) ||
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!CBB_add_bytes(&contents, test_data, 130) ||
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!CBB_finish(&cbb, &buf, &buf_len)) {
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return 0;
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}
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if (buf_len != 3 + 130 || memcmp(buf, "\x30\x81\x82", 3) != 0) {
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return 0;
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}
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free(buf);
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if (!CBB_init(&cbb, 0) ||
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!CBB_add_asn1(&cbb, &contents, 0x30) ||
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!CBB_add_bytes(&contents, test_data, 1000) ||
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!CBB_finish(&cbb, &buf, &buf_len)) {
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return 0;
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}
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if (buf_len != 4 + 1000 || memcmp(buf, "\x30\x82\x03\xe8", 4) != 0) {
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return 0;
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}
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free(buf);
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if (!CBB_init(&cbb, 0) ||
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!CBB_add_asn1(&cbb, &contents, 0x30) ||
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!CBB_add_asn1(&contents, &inner_contents, 0x30) ||
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!CBB_add_bytes(&inner_contents, test_data, 100000) ||
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!CBB_finish(&cbb, &buf, &buf_len)) {
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return 0;
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}
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if (buf_len != 5 + 5 + 100000 ||
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memcmp(buf, "\x30\x83\x01\x86\xa5\x30\x83\x01\x86\xa0", 10) != 0) {
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return 0;
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}
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free(buf);
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free(test_data);
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return 1;
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}
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int main() {
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if (!test_skip() ||
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!test_get_u() ||
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!test_get_prefixed() ||
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!test_get_prefixed_bad() ||
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!test_get_asn1() ||
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!test_get_indef() ||
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!test_cbb_basic() ||
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!test_cbb_fixed() ||
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!test_cbb_finish_child() ||
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!test_cbb_misuse() ||
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!test_cbb_prefixed() ||
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!test_cbb_asn1()) {
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return 1;
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}
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printf("PASS\n");
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return 0;
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}
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