1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
|
/* SPDX-License-Identifier: LGPL-2.1+ */
/***
Copyright © 2016 Zbigniew Jędrzejewski-Szmek
***/
#include <net/if.h>
#include <glob.h>
#include "sd-id128.h"
#include "alloc-util.h"
#include "fileio.h"
#include "glob-util.h"
#include "log.h"
#include "macro.h"
#include "resolved-dns-packet.h"
#include "resolved-dns-rr.h"
#include "string-util.h"
#include "strv.h"
#include "tests.h"
#include "unaligned.h"
#define HASH_KEY SD_ID128_MAKE(d3,1e,48,90,4b,fa,4c,fe,af,9d,d5,a1,d7,2e,8a,b1)
static void verify_rr_copy(DnsResourceRecord *rr) {
_cleanup_(dns_resource_record_unrefp) DnsResourceRecord *copy = NULL;
const char *a, *b;
assert_se(copy = dns_resource_record_copy(rr));
assert_se(dns_resource_record_equal(copy, rr) > 0);
assert_se(a = dns_resource_record_to_string(rr));
assert_se(b = dns_resource_record_to_string(copy));
assert_se(streq(a, b));
}
static uint64_t hash(DnsResourceRecord *rr) {
struct siphash state;
siphash24_init(&state, HASH_KEY.bytes);
dns_resource_record_hash_func(rr, &state);
return siphash24_finalize(&state);
}
static void test_packet_from_file(const char* filename, bool canonical) {
_cleanup_free_ char *data = NULL;
size_t data_size, packet_size, offset;
assert_se(read_full_file(filename, &data, &data_size) >= 0);
assert_se(data);
assert_se(data_size > 8);
log_info("============== %s %s==============", filename, canonical ? "canonical " : "");
for (offset = 0; offset < data_size; offset += 8 + packet_size) {
_cleanup_(dns_packet_unrefp) DnsPacket *p = NULL, *p2 = NULL;
_cleanup_(dns_resource_record_unrefp) DnsResourceRecord *rr = NULL, *rr2 = NULL;
const char *s, *s2;
uint64_t hash1, hash2;
packet_size = unaligned_read_le64(data + offset);
assert_se(packet_size > 0);
assert_se(offset + 8 + packet_size <= data_size);
assert_se(dns_packet_new(&p, DNS_PROTOCOL_DNS, 0, DNS_PACKET_SIZE_MAX) >= 0);
assert_se(dns_packet_append_blob(p, data + offset + 8, packet_size, NULL) >= 0);
assert_se(dns_packet_read_rr(p, &rr, NULL, NULL) >= 0);
verify_rr_copy(rr);
s = dns_resource_record_to_string(rr);
assert_se(s);
puts(s);
hash1 = hash(rr);
assert_se(dns_resource_record_to_wire_format(rr, canonical) >= 0);
assert_se(dns_packet_new(&p2, DNS_PROTOCOL_DNS, 0, DNS_PACKET_SIZE_MAX) >= 0);
assert_se(dns_packet_append_blob(p2, rr->wire_format, rr->wire_format_size, NULL) >= 0);
assert_se(dns_packet_read_rr(p2, &rr2, NULL, NULL) >= 0);
verify_rr_copy(rr);
s2 = dns_resource_record_to_string(rr);
assert_se(s2);
assert_se(streq(s, s2));
hash2 = hash(rr);
assert_se(hash1 == hash2);
}
}
int main(int argc, char **argv) {
int i, N;
_cleanup_globfree_ glob_t g = {};
char **fnames;
log_parse_environment();
if (argc >= 2) {
N = argc - 1;
fnames = argv + 1;
} else {
assert_se(glob(get_testdata_dir("/test-resolve/*.pkts"), GLOB_NOSORT, NULL, &g) == 0);
N = g.gl_pathc;
fnames = g.gl_pathv;
}
for (i = 0; i < N; i++) {
test_packet_from_file(fnames[i], false);
puts("");
test_packet_from_file(fnames[i], true);
if (i + 1 < N)
puts("");
}
return EXIT_SUCCESS;
}
|
