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Systemd/src/libsystemd-network/test-ndisc-ra.c
Zbigniew Jędrzejewski-Szmek 11a1589223 tree-wide: drop license boilerplate 
Files which are installed as-is (any .service and other unit files, .conf
files, .policy files, etc), are left as is. My assumption is that SPDX
identifiers are not yet that well known, so it's better to retain the
extended header to avoid any doubt.

I also kept any copyright lines. We can probably remove them, but it'd nice to
obtain explicit acks from all involved authors before doing that.
2018-04-06 18:58:55 +02:00

373 lines
14 KiB
C
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/* SPDX-License-Identifier: LGPL-2.1+ */
/***
This file is part of systemd.
Copyright (C) 2017 Intel Corporation. All rights reserved.
***/
#include <netinet/icmp6.h>
#include <arpa/inet.h>
#include "sd-radv.h"
#include "alloc-util.h"
#include "hexdecoct.h"
#include "icmp6-util.h"
#include "socket-util.h"
#include "strv.h"
static struct ether_addr mac_addr = {
.ether_addr_octet = { 0x78, 0x2b, 0xcb, 0xb3, 0x6d, 0x53 }
};
static uint8_t advertisement[] = {
/* ICMPv6 Router Advertisement, no checksum */
0x86, 0x00, 0x00, 0x00, 0x40, 0xc0, 0x00, 0xb4,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/* Source Link Layer Address Option */
0x01, 0x01, 0x78, 0x2b, 0xcb, 0xb3, 0x6d, 0x53,
/* Prefix Information Option */
0x03, 0x04, 0x40, 0xc0, 0x00, 0x00, 0x01, 0xf4,
0x00, 0x00, 0x01, 0xb8, 0x00, 0x00, 0x00, 0x00,
0x20, 0x01, 0x0d, 0xb8, 0xde, 0xad, 0xbe, 0xef,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/* Prefix Information Option */
0x03, 0x04, 0x40, 0xc0, 0x00, 0x27, 0x8d, 0x00,
0x00, 0x09, 0x3a, 0x80, 0x00, 0x00, 0x00, 0x00,
0x20, 0x01, 0x0d, 0xb8, 0x0b, 0x16, 0xd0, 0x0d,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/* Prefix Information Option */
0x03, 0x04, 0x30, 0xc0, 0x00, 0x27, 0x8d, 0x00,
0x00, 0x09, 0x3a, 0x80, 0x00, 0x00, 0x00, 0x00,
0x20, 0x01, 0x0d, 0xb8, 0xc0, 0x01, 0x0d, 0xad,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/* Recursive DNS Server Option */
0x19, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3c,
0x20, 0x01, 0x0d, 0xb8, 0xde, 0xad, 0xbe, 0xef,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
/* DNS Search List Option */
0x1f, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3c,
0x03, 0x6c, 0x61, 0x62, 0x05, 0x69, 0x6e, 0x74,
0x72, 0x61, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
};
static sd_event_source *test_hangcheck;
static bool test_stopped;
static int test_fd[2];
static sd_event_source *recv_router_advertisement;
static struct {
struct in6_addr address;
unsigned char prefixlen;
uint32_t valid;
uint32_t preferred;
bool succesful;
} prefix[] = {
{ { { { 0x20, 0x01, 0x0d, 0xb8, 0xde, 0xad, 0xbe, 0xef,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } } }, 64,
500, 440, true },
{ { { { 0x20, 0x01, 0x0d, 0xb8, 0x0b, 0x16, 0xd0, 0x0d,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } } }, 64,
/* indicate default valid and preferred lifetimes for the test code */
0, 0, true },
{ { { { 0x20, 0x01, 0x0d, 0xb8, 0x0b, 0x16, 0xd0, 0x0d,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } } }, 58,
0, 0,
/* indicate that this prefix already exists */
false },
{ { { { 0x20, 0x01, 0x0d, 0xb8, 0x0b, 0x16, 0xd0, 0x0d,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } } }, 120,
0, 0,
/* indicate that this prefix already exists */
false },
{ { { { 0x20, 0x01, 0x0d, 0xb8, 0x0b, 0x16, 0xd0, 0x0d,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } } }, 12,
0, 0,
/* indicate that this prefix already exists */
false },
{ { { { 0x20, 0x01, 0x0d, 0xb8, 0xc0, 0x01, 0x0d, 0xad,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } } }, 48,
0, 0, true },
{ { { { 0x20, 0x01, 0x0d, 0xb8, 0xc0, 0x01, 0x0d, 0xad,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } } }, 60,
0, 0,
/* indicate that this prefix already exists */
false },
};
static const struct in6_addr test_rdnss = { { { 0x20, 0x01, 0x0d, 0xb8,
0xde, 0xad, 0xbe, 0xef,
0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x01 } } };
static const char *test_dnssl[] = { "lab.intra",
NULL };
static int test_rs_hangcheck(sd_event_source *s, uint64_t usec,
void *userdata) {
assert_se(false);
return 0;
}
static void test_radv_prefix(void) {
sd_radv_prefix *p;
printf("* %s\n", __FUNCTION__);
assert_se(sd_radv_prefix_new(&p) >= 0);
assert_se(sd_radv_prefix_set_onlink(NULL, true) < 0);
assert_se(sd_radv_prefix_set_onlink(p, true) >= 0);
assert_se(sd_radv_prefix_set_onlink(p, false) >= 0);
assert_se(sd_radv_prefix_set_address_autoconfiguration(NULL, true) < 0);
assert_se(sd_radv_prefix_set_address_autoconfiguration(p, true) >= 0);
assert_se(sd_radv_prefix_set_address_autoconfiguration(p, false) >= 0);
assert_se(sd_radv_prefix_set_valid_lifetime(NULL, true) < 0);
assert_se(sd_radv_prefix_set_valid_lifetime(p, ~0) >= 0);
assert_se(sd_radv_prefix_set_valid_lifetime(p, 42) >= 0);
assert_se(sd_radv_prefix_set_valid_lifetime(p, 0) >= 0);
assert_se(sd_radv_prefix_set_preferred_lifetime(NULL, true) < 0);
assert_se(sd_radv_prefix_set_preferred_lifetime(p, ~0) >= 0);
assert_se(sd_radv_prefix_set_preferred_lifetime(p, 42) >= 0);
assert_se(sd_radv_prefix_set_preferred_lifetime(p, 0) >= 0);
assert_se(sd_radv_prefix_set_prefix(NULL, NULL, 0) < 0);
assert_se(sd_radv_prefix_set_prefix(p, NULL, 0) < 0);
assert_se(sd_radv_prefix_set_prefix(p, &prefix[0].address, 64) >= 0);
assert_se(sd_radv_prefix_set_prefix(p, &prefix[0].address, 0) < 0);
assert_se(sd_radv_prefix_set_prefix(p, &prefix[0].address, 1) < 0);
assert_se(sd_radv_prefix_set_prefix(p, &prefix[0].address, 2) < 0);
assert_se(sd_radv_prefix_set_prefix(p, &prefix[0].address, 3) >= 0);
assert_se(sd_radv_prefix_set_prefix(p, &prefix[0].address, 125) >= 0);
assert_se(sd_radv_prefix_set_prefix(p, &prefix[0].address, 128) >= 0);
assert_se(sd_radv_prefix_set_prefix(p, &prefix[0].address, 129) < 0);
assert_se(sd_radv_prefix_set_prefix(p, &prefix[0].address, 255) < 0);
p = sd_radv_prefix_unref(p);
assert_se(!p);
}
static void test_radv(void) {
sd_radv *ra;
printf("* %s\n", __FUNCTION__);
assert_se(sd_radv_new(&ra) >= 0);
assert_se(ra);
assert_se(sd_radv_set_ifindex(NULL, 0) < 0);
assert_se(sd_radv_set_ifindex(ra, 0) >= 0);
assert_se(sd_radv_set_ifindex(ra, -1) >= 0);
assert_se(sd_radv_set_ifindex(ra, -2) < 0);
assert_se(sd_radv_set_ifindex(ra, 42) >= 0);
assert_se(sd_radv_set_mac(NULL, NULL) < 0);
assert_se(sd_radv_set_mac(ra, NULL) >= 0);
assert_se(sd_radv_set_mac(ra, &mac_addr) >= 0);
assert_se(sd_radv_set_mtu(NULL, 0) < 0);
assert_se(sd_radv_set_mtu(ra, 0) < 0);
assert_se(sd_radv_set_mtu(ra, 1279) < 0);
assert_se(sd_radv_set_mtu(ra, 1280) >= 0);
assert_se(sd_radv_set_mtu(ra, ~0) >= 0);
assert_se(sd_radv_set_hop_limit(NULL, 0) < 0);
assert_se(sd_radv_set_hop_limit(ra, 0) >= 0);
assert_se(sd_radv_set_hop_limit(ra, ~0) >= 0);
assert_se(sd_radv_set_router_lifetime(NULL, 0) < 0);
assert_se(sd_radv_set_router_lifetime(ra, 0) >= 0);
assert_se(sd_radv_set_router_lifetime(ra, ~0) >= 0);
assert_se(sd_radv_set_preference(NULL, 0) < 0);
assert_se(sd_radv_set_preference(ra, SD_NDISC_PREFERENCE_LOW) >= 0);
assert_se(sd_radv_set_preference(ra, SD_NDISC_PREFERENCE_MEDIUM) >= 0);
assert_se(sd_radv_set_preference(ra, SD_NDISC_PREFERENCE_HIGH) >= 0);
assert_se(sd_radv_set_preference(ra, ~0) < 0);
assert_se(sd_radv_set_preference(ra, SD_NDISC_PREFERENCE_HIGH) >= 0);
assert_se(sd_radv_set_router_lifetime(ra, 42000) >= 0);
assert_se(sd_radv_set_router_lifetime(ra, 0) < 0);
assert_se(sd_radv_set_preference(ra, SD_NDISC_PREFERENCE_MEDIUM) >= 0);
assert_se(sd_radv_set_router_lifetime(ra, 0) >= 0);
assert_se(sd_radv_set_managed_information(NULL, true) < 0);
assert_se(sd_radv_set_managed_information(ra, true) >= 0);
assert_se(sd_radv_set_managed_information(ra, false) >= 0);
assert_se(sd_radv_set_other_information(NULL, true) < 0);
assert_se(sd_radv_set_other_information(ra, true) >= 0);
assert_se(sd_radv_set_other_information(ra, false) >= 0);
assert_se(sd_radv_set_rdnss(NULL, 0, NULL, 0) < 0);
assert_se(sd_radv_set_rdnss(ra, 0, NULL, 0) >= 0);
assert_se(sd_radv_set_rdnss(ra, 0, NULL, 128) < 0);
assert_se(sd_radv_set_rdnss(ra, 600, &test_rdnss, 0) >= 0);
assert_se(sd_radv_set_rdnss(ra, 600, &test_rdnss, 1) >= 0);
assert_se(sd_radv_set_rdnss(ra, 0, &test_rdnss, 1) >= 0);
assert_se(sd_radv_set_rdnss(ra, 0, NULL, 0) >= 0);
assert_se(sd_radv_set_dnssl(ra, 0, NULL) >= 0);
assert_se(sd_radv_set_dnssl(ra, 600, NULL) >= 0);
assert_se(sd_radv_set_dnssl(ra, 0, (char **)test_dnssl) >= 0);
assert_se(sd_radv_set_dnssl(ra, 600, (char **)test_dnssl) >= 0);
ra = sd_radv_unref(ra);
assert_se(!ra);
}
int icmp6_bind_router_solicitation(int index) {
return -ENOSYS;
}
int icmp6_bind_router_advertisement(int index) {
assert_se(index == 42);
return test_fd[1];
}
int icmp6_send_router_solicitation(int s, const struct ether_addr *ether_addr) {
return 0;
}
int icmp6_receive(int fd, void *iov_base, size_t iov_len,
struct in6_addr *dst, triple_timestamp *timestamp) {
assert_se(read (fd, iov_base, iov_len) == (ssize_t)iov_len);
if (timestamp)
triple_timestamp_get(timestamp);
return 0;
}
static int radv_recv(sd_event_source *s, int fd, uint32_t revents, void *userdata) {
sd_radv *ra = userdata;
unsigned char buf[168];
size_t i;
assert_se(read(test_fd[0], &buf, sizeof(buf)) == sizeof(buf));
/* router lifetime must be zero when test is stopped */
if (test_stopped) {
advertisement[6] = 0x00;
advertisement[7] = 0x00;
}
printf ("Received Router Advertisement with lifetime %u\n",
(advertisement[6] << 8) + advertisement[7]);
/* test only up to buf size, rest is not yet implemented */
for (i = 0; i < sizeof(buf); i++) {
if (!(i % 8))
printf("%3zd: ", i);
printf("0x%02x", buf[i]);
assert_se(buf[i] == advertisement[i]);
if ((i + 1) % 8)
printf(", ");
else
printf("\n");
}
if (test_stopped) {
sd_event *e;
e = sd_radv_get_event(ra);
sd_event_exit(e, 0);
return 0;
}
assert_se(sd_radv_stop(ra) >= 0);
test_stopped = true;
return 0;
}
static void test_ra(void) {
sd_event *e;
sd_radv *ra;
usec_t time_now = now(clock_boottime_or_monotonic());
unsigned int i;
printf("* %s\n", __FUNCTION__);
assert_se(socketpair(AF_UNIX, SOCK_SEQPACKET, 0, test_fd) >= 0);
assert_se(sd_event_new(&e) >= 0);
assert_se(sd_radv_new(&ra) >= 0);
assert_se(ra);
assert_se(sd_radv_attach_event(ra, e, 0) >= 0);
assert_se(sd_radv_set_ifindex(ra, 42) >= 0);
assert_se(sd_radv_set_mac(ra, &mac_addr) >= 0);
assert_se(sd_radv_set_router_lifetime(ra, 180) >= 0);
assert_se(sd_radv_set_hop_limit(ra, 64) >= 0);
assert_se(sd_radv_set_managed_information(ra, true) >= 0);
assert_se(sd_radv_set_other_information(ra, true) >= 0);
assert_se(sd_radv_set_rdnss(ra, 60, &test_rdnss, 1) >= 0);
assert_se(sd_radv_set_dnssl(ra, 60, (char **)test_dnssl) >= 0);
for (i = 0; i < ELEMENTSOF(prefix); i++) {
sd_radv_prefix *p;
printf("Test prefix %u\n", i);
assert_se(sd_radv_prefix_new(&p) >= 0);
assert_se(sd_radv_prefix_set_prefix(p, &prefix[i].address,
prefix[i].prefixlen) >= 0);
if (prefix[i].valid)
assert_se(sd_radv_prefix_set_valid_lifetime(p, prefix[i].valid) >= 0);
if (prefix[i].preferred)
assert_se(sd_radv_prefix_set_preferred_lifetime(p, prefix[i].preferred) >= 0);
assert_se((sd_radv_add_prefix(ra, p, false) >= 0) == prefix[i].succesful);
assert_se(sd_radv_add_prefix(ra, p, false) < 0);
p = sd_radv_prefix_unref(p);
assert_se(!p);
}
assert_se(sd_event_add_io(e, &recv_router_advertisement, test_fd[0],
EPOLLIN, radv_recv, ra) >= 0);
assert_se(sd_event_add_time(e, &test_hangcheck, clock_boottime_or_monotonic(),
time_now + 2 *USEC_PER_SEC, 0,
test_rs_hangcheck, NULL) >= 0);
assert_se(sd_radv_start(ra) >= 0);
sd_event_loop(e);
test_hangcheck = sd_event_source_unref(test_hangcheck);
ra = sd_radv_unref(ra);
assert_se(!ra);
close(test_fd[0]);
sd_event_unref(e);
}
int main(int argc, char *argv[]) {
log_set_max_level(LOG_DEBUG);
log_parse_environment();
log_open();
test_radv_prefix();
test_radv();
test_ra();
printf("* done\n");
return 0;
}
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