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test: add tests for reading unaligned data

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This commit is contained in:
Yu Watanabe
2021-09-29 15:18:59 +09:00
parent b89a3758e9
commit e620104956
1 changed files with 21 additions and 8 deletions
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src/libsystemd-network/test-dhcp6-client.c
+21 -8
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@@ -156,7 +156,7 @@ static int test_parse_domain(sd_event *e) {
static int test_option(sd_event *e) {
uint8_t packet[] = {
'F', 'O', 'O',
'F', 'O', 'O', 'H', 'O', 'G', 'E',
0x00, SD_DHCP6_OPTION_ORO, 0x00, 0x07,
'A', 'B', 'C', 'D', 'E', 'F', 'G',
0x00, SD_DHCP6_OPTION_VENDOR_CLASS, 0x00, 0x09,
@@ -164,12 +164,13 @@ static int test_option(sd_event *e) {
'B', 'A', 'R',
};
uint8_t result[] = {
'F', 'O', 'O',
'F', 'O', 'O', 'H', 'O', 'G', 'E',
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
'B', 'A', 'R',
};
_cleanup_free_ uint8_t *buf = NULL;
size_t offset, pos, optlen, outlen = sizeof(result);
const uint8_t *optval;
uint16_t optcode;
@@ -185,16 +186,28 @@ static int test_option(sd_event *e) {
offset = 3;
assert_se(dhcp6_option_parse(packet, 0, &offset, &optcode, &optlen, &optval) == -EBADMSG);
offset = 3;
/* Tests for reading unaligned data. */
assert_se(buf = new(uint8_t, sizeof(packet)));
for (size_t i = 0; i <= 7; i++) {
memcpy(buf, packet + i, sizeof(packet) - i);
offset = 7 - i;
assert_se(dhcp6_option_parse(buf, sizeof(packet), &offset, &optcode, &optlen, &optval) >= 0);
assert_se(optcode == SD_DHCP6_OPTION_ORO);
assert_se(optlen == 7);
assert_se(optval == buf + 11 - i);
}
offset = 7;
assert_se(dhcp6_option_parse(packet, sizeof(packet), &offset, &optcode, &optlen, &optval) >= 0);
assert_se(optcode == SD_DHCP6_OPTION_ORO);
assert_se(optlen == 7);
assert_se(optval == packet + 7);
assert_se(optval == packet + 11);
pos = 3;
outlen -= 3;
out = &result[3];
pos = 7;
outlen -= 7;
out = &result[pos];
assert_se(dhcp6_option_append(&out, &outlen, optcode, optlen, optval) >= 0);
@@ -206,7 +219,7 @@ static int test_option(sd_event *e) {
assert_se(optcode == SD_DHCP6_OPTION_VENDOR_CLASS);
assert_se(optlen == 9);
assert_se(optval == packet + 18);
assert_se(optval == packet + 22);
assert_se(dhcp6_option_append(&out, &outlen, optcode, optlen, optval) >= 0);