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/* Copyright (C) CZ.NIC, z.s.p.o. and contributors
* SPDX-License-Identifier: GPL-2.0-or-later
* For more information, see <https://www.knot-dns.cz/>
*/
#include <tap/basic.h>
#include <assert.h>
#include <stdbool.h>
#include <string.h>
#include <unistd.h>
#include "libknot/errcode.h"
#include "libknot/tsig.h"
static bool key_is_eq(const knot_tsig_key_t *a, const knot_tsig_key_t *b)
{
if (a == NULL && b == NULL) {
return true;
}
if (a == NULL || b == NULL) {
return false;
}
return a->algorithm == b->algorithm &&
knot_dname_is_equal(a->name, b->name) &&
dnssec_binary_cmp(&a->secret, &b->secret) == 0;
}
#define test_function(function, msg, expected, ...) \
knot_tsig_key_t key = { 0 }; \
int r = function(&key, __VA_ARGS__); \
ok((r != KNOT_EOK && expected == NULL) || \
(r == KNOT_EOK && key_is_eq(&key, expected)), \
"%s: %s", #function, msg); \
knot_tsig_key_deinit(&key);
static void test_init(const char *msg, const knot_tsig_key_t *expected,
const char *algo, const char *name, const char *secret)
{
test_function(knot_tsig_key_init, msg, expected, algo, name, secret);
}
static void test_init_str(const char *msg, const knot_tsig_key_t *expected,
const char *params)
{
test_function(knot_tsig_key_init_str, msg, expected, params);
}
static void test_init_file(const char *msg, const knot_tsig_key_t *expected,
const char *filename)
{
test_function(knot_tsig_key_init_file, msg, expected, filename);
}
static void test_init_file_content(const char *msg,
const knot_tsig_key_t *expected,
const char *content)
{
char filename[] = "testkey.XXXXXX";
int fd = mkstemp(filename);
if (fd == -1) {
bail("failed to create temporary file");
return;
}
ok(write(fd, content, strlen(content)) != -1, "file write");
close(fd);
test_init_file(msg, expected, filename);
unlink(filename);
}
int main(int argc, char *argv[])
{
plan_lazy();
// initialization from parameters
test_init("missing name", NULL, "hmac-md5", NULL, "Wg==");
test_init("missing secret", NULL, "hmac-md5", "name", NULL);
test_init("invalid HMAC", NULL, "hmac-sha11", "name", "Wg==");
{
static const knot_tsig_key_t key = {
.algorithm = DNSSEC_TSIG_HMAC_SHA256,
.name = (uint8_t *)"\x3""key""\x4""name",
.secret.size = 1,
.secret.data = (uint8_t *)"\x5a"
};
test_init("default algorithm", &key, NULL, "key.name", "Wg==");
}
{
static const knot_tsig_key_t key = {
.algorithm = DNSSEC_TSIG_HMAC_SHA1,
.name = (uint8_t *)"\x4""knot""\x3""dns",
.secret.size = 6,
.secret.data = (uint8_t *)"secret"
};
test_init("sha1", &key, "hmac-sha1", "knot.dns.", "c2VjcmV0");
}
// initialization from string
test_init_str("missing value", NULL, NULL);
test_init_str("malformed", NULL, "this is malformed");
test_init_str("invalid HMAC", NULL, "hmac-sha51299:key:Wg==");
{
static const knot_tsig_key_t key = {
.algorithm = DNSSEC_TSIG_HMAC_SHA256,
.name = (uint8_t *)"\x4""tsig""\x3""key",
.secret.size = 9,
.secret.data = (uint8_t *)"bananakey"
};
test_init_str("default algorithm", &key, "tsig.key:YmFuYW5ha2V5");
}
{
static const knot_tsig_key_t key = {
.algorithm = DNSSEC_TSIG_HMAC_SHA384,
.name = (uint8_t *)"\x6""strong""\x3""key",
.secret.size = 8,
.secret.data = (uint8_t *)"applekey"
};
test_init_str("sha384", &key, "hmac-sha384:strong.KEY:YXBwbGVrZXk=");
}
// initialization from a file
test_init_file("no filename", NULL, NULL);
test_init_file("not-existing", NULL, "/this-really-should-not-exist");
test_init_file_content("malformed content", NULL, "malformed\n");
{
static const knot_tsig_key_t key = {
.algorithm = DNSSEC_TSIG_HMAC_SHA512,
.name = (uint8_t *)"\x6""django""\x3""one",
.secret.size = 40,
.secret.data = (uint8_t *)"Who's that stumbling around in the dark?"
};
test_init_file_content("sha512", &key,
"hmac-sha512:django.one:V2hvJ3MgdGhhdCB"
"zdHVtYmxpbmcgYXJvdW5kIGluIHRoZSBkYXJrP"
"w==\n\n\n");
}
{
static const knot_tsig_key_t key = {
.algorithm = DNSSEC_TSIG_HMAC_SHA512,
.name = (uint8_t *)"\x6""django""\x3""two",
.secret.size = 22,
.secret.data = (uint8_t *)"Prepare to get winged!"
};
test_init_file_content("sha512 without newline", &key,
"hmac-sha512:django.two:UHJlcGFyZSB0byB"
"nZXQgd2luZ2VkIQ==");
}
{
static const knot_tsig_key_t key = {
.algorithm = DNSSEC_TSIG_HMAC_SHA1,
.name = (uint8_t *)"\x4""test",
.secret.size = 1,
.secret.data = (uint8_t *)"\x5a"
};
test_init_file_content("leading and trailing white spaces", &key,
"\thmac-sha1:test:Wg== \n");
}
// tsig key duplication
{
static const knot_tsig_key_t key = {
.algorithm = DNSSEC_TSIG_HMAC_SHA1,
.name = (uint8_t *)"\x4""copy""\x2""me",
.secret.size = 6,
.secret.data = (uint8_t *)"orange"
};
knot_tsig_key_t copy = { 0 };
int r;
r = knot_tsig_key_copy(NULL, &key);
ok(r != KNOT_EOK, "knot_tsig_key_copy: no destination");
r = knot_tsig_key_copy(©, NULL);
ok(r != KNOT_EOK, "knot_tsig_key_copy: no source");
r = knot_tsig_key_copy(©, &key);
ok(r == KNOT_EOK && key_is_eq(©, &key) &&
copy.secret.data != key.secret.data && copy.name != key.name,
"knot_tsig_key_copy: simple copy");
knot_tsig_key_deinit(©);
}
return 0;
}
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