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Diffstat (limited to 'src/libsystemd-network/test-ndisc-rs.c')
-rw-r--r--src/libsystemd-network/test-ndisc-rs.c357
1 files changed, 357 insertions, 0 deletions
diff --git a/src/libsystemd-network/test-ndisc-rs.c b/src/libsystemd-network/test-ndisc-rs.c
new file mode 100644
index 0000000000..49305e297b
--- /dev/null
+++ b/src/libsystemd-network/test-ndisc-rs.c
@@ -0,0 +1,357 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+ This file is part of systemd.
+
+ Copyright (C) 2014 Intel Corporation. All rights reserved.
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <netinet/icmp6.h>
+
+#include "socket-util.h"
+
+#include "dhcp6-internal.h"
+#include "sd-ndisc.h"
+
+static struct ether_addr mac_addr = {
+ .ether_addr_octet = {'A', 'B', 'C', '1', '2', '3'}
+};
+
+static bool verbose = false;
+static sd_event_source *test_hangcheck;
+static int test_fd[2];
+
+typedef int (*send_ra_t)(uint8_t flags);
+static send_ra_t send_ra_function;
+
+static int test_rs_hangcheck(sd_event_source *s, uint64_t usec,
+ void *userdata) {
+ assert_se(false);
+
+ return 0;
+}
+
+int dhcp_network_icmp6_bind_router_solicitation(int index) {
+ assert_se(index == 42);
+
+ if (socketpair(AF_UNIX, SOCK_DGRAM, 0, test_fd) < 0)
+ return -errno;
+
+ return test_fd[0];
+}
+
+static int send_ra_short_prefix(uint8_t flags) {
+ uint8_t advertisement[] = {
+ 0x86, 0x00, 0xbe, 0xd7, 0x40, 0xc0, 0x00, 0xb4,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+
+ 0x03, 0x04, 0x34, 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
+ };
+
+ assert_se(write(test_fd[1], advertisement, sizeof(advertisement)) ==
+ sizeof(advertisement));
+
+ return 0;
+}
+
+static void test_short_prefix_cb(sd_icmp6_nd *nd, int event, void *userdata) {
+ sd_event *e = userdata;
+ struct {
+ struct in6_addr addr;
+ uint8_t prefixlen;
+ bool success;
+ } addrs[] = {
+ { { { { 0x20, 0x01, 0x0d, 0xb8, 0xde, 0xad, 0xbe, 0xef,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } } },
+ 52, true },
+ { { { { 0x20, 0x01, 0x0d, 0xb8, 0xde, 0xad, 0x0d, 0xad,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } } },
+ 64, false },
+ { { { { 0x20, 0x01, 0x0d, 0xb8, 0x0b, 0x16, 0xd0, 0x0d,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } } },
+ 60, true },
+ { { { { 0x20, 0x01, 0x0d, 0xb8, 0x00, 0x9d, 0xab, 0xcd,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } } },
+ 64, true },
+ { { { { 0x20, 0x01, 0x0d, 0xb8, 0xde, 0xad, 0xbe, 0xed,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 } } },
+ 52, true },
+ };
+ uint8_t prefixlen;
+ unsigned int i;
+
+ for (i = 0; i < ELEMENTSOF(addrs); i++) {
+ printf(" %s prefix %02x%02x:%02x%02x:%02x%02x:%02x%02x",
+ __FUNCTION__,
+ addrs[i].addr.s6_addr[0], addrs[i].addr.s6_addr[1],
+ addrs[i].addr.s6_addr[2], addrs[i].addr.s6_addr[3],
+ addrs[i].addr.s6_addr[4], addrs[i].addr.s6_addr[5],
+ addrs[i].addr.s6_addr[6], addrs[i].addr.s6_addr[7]);
+
+ if (addrs[i].success) {
+ assert_se(sd_icmp6_ra_get_prefixlen(nd, &addrs[i].addr,
+ &prefixlen) >= 0);
+ assert_se(addrs[i].prefixlen == prefixlen);
+ printf("/%d onlink\n", prefixlen);
+ } else {
+ assert_se(sd_icmp6_ra_get_prefixlen(nd, &addrs[i].addr,
+ &prefixlen) == -EADDRNOTAVAIL);
+ printf("/128 offlink\n");
+ }
+ }
+
+ sd_event_exit(e, 0);
+}
+
+static int send_ra_prefixes(uint8_t flags) {
+ uint8_t advertisement[] = {
+ 0x86, 0x00, 0xbe, 0xd7, 0x40, 0xc0, 0x00, 0xb4,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x03, 0x04, 0x3f, 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,
+ 0x03, 0x04, 0x40, 0x00, 0x00, 0x00, 0x02, 0x58,
+ 0x00, 0x00, 0x02, 0x1c, 0x00, 0x00, 0x00, 0x00,
+ 0x20, 0x01, 0x0d, 0xb8, 0xde, 0xad, 0x0d, 0xad,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x03, 0x04, 0x3c, 0x80, 0x00, 0x00, 0x03, 0x84,
+ 0x00, 0x00, 0x03, 0x20, 0x00, 0x00, 0x00, 0x00,
+ 0x20, 0x01, 0x0d, 0xb8, 0x0b, 0x16, 0xd0, 0x0d,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x03, 0x04, 0x40, 0xc0, 0x00, 0x00, 0x03, 0x84,
+ 0x00, 0x00, 0x03, 0x20, 0x00, 0x00, 0x00, 0x00,
+ 0x20, 0x01, 0x0d, 0xb8, 0x00, 0x9d, 0xab, 0xcd,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x19, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3c,
+ 0x20, 0x01, 0x0d, 0xb8, 0xde, 0xad, 0xbe, 0xef,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
+ 0x1f, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3c,
+ 0x03, 0x6c, 0x61, 0x62, 0x05, 0x69, 0x6e, 0x74,
+ 0x72, 0x61, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x01, 0x01, 0x78, 0x2b, 0xcb, 0xb3, 0x6d, 0x53
+ };
+
+ assert_se(write(test_fd[1], advertisement, sizeof(advertisement)) ==
+ sizeof(advertisement));
+
+ return 0;
+}
+
+static void test_prefixes_cb(sd_icmp6_nd *nd, int event, void *userdata) {
+ sd_event *e = userdata;
+ struct {
+ struct in6_addr addr;
+ uint8_t prefixlen;
+ bool success;
+ } addrs[] = {
+ { { { { 0x20, 0x01, 0x0d, 0xb8, 0xde, 0xad, 0xbe, 0xef,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } } },
+ 63, true },
+ { { { { 0x20, 0x01, 0x0d, 0xb8, 0xde, 0xad, 0x0d, 0xad,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } } },
+ 64, false },
+ { { { { 0x20, 0x01, 0x0d, 0xb8, 0x0b, 0x16, 0xd0, 0x0d,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } } },
+ 60, true },
+ { { { { 0x20, 0x01, 0x0d, 0xb8, 0x00, 0x9d, 0xab, 0xcd,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } } },
+ 64, true },
+ { { { { 0x20, 0x01, 0x0d, 0xb8, 0xde, 0xad, 0xbe, 0xed,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 } } },
+ 63, false },
+ };
+ uint8_t prefixlen;
+ unsigned int i;
+
+ for (i = 0; i < ELEMENTSOF(addrs); i++) {
+ printf(" %s prefix %02x%02x:%02x%02x:%02x%02x:%02x%02x",
+ __FUNCTION__,
+ addrs[i].addr.s6_addr[0], addrs[i].addr.s6_addr[1],
+ addrs[i].addr.s6_addr[2], addrs[i].addr.s6_addr[3],
+ addrs[i].addr.s6_addr[4], addrs[i].addr.s6_addr[5],
+ addrs[i].addr.s6_addr[6], addrs[i].addr.s6_addr[7]);
+
+ if (addrs[i].success) {
+ assert_se(sd_icmp6_ra_get_prefixlen(nd, &addrs[i].addr,
+ &prefixlen) >= 0);
+ assert_se(addrs[i].prefixlen == prefixlen);
+ printf("/%d onlink\n", prefixlen);
+ } else {
+ assert_se(sd_icmp6_ra_get_prefixlen(nd, &addrs[i].addr,
+ &prefixlen) == -EADDRNOTAVAIL);
+ printf("/128 offlink\n");
+ }
+ }
+
+ send_ra_function = send_ra_short_prefix;
+ assert_se(sd_icmp6_nd_set_callback(nd, test_short_prefix_cb, e) >= 0);
+ assert_se(sd_icmp6_nd_stop(nd) >= 0);
+ assert_se(sd_icmp6_router_solicitation_start(nd) >= 0);
+}
+
+static void test_prefixes(void) {
+ sd_event *e;
+ sd_icmp6_nd *nd;
+
+ if (verbose)
+ printf("* %s\n", __FUNCTION__);
+
+ send_ra_function = send_ra_prefixes;
+
+ assert_se(sd_event_new(&e) >= 0);
+
+ assert_se(sd_icmp6_nd_new(&nd) >= 0);
+ assert_se(nd);
+
+ assert_se(sd_icmp6_nd_attach_event(nd, e, 0) >= 0);
+
+ assert_se(sd_icmp6_nd_set_index(nd, 42) >= 0);
+ assert_se(sd_icmp6_nd_set_mac(nd, &mac_addr) >= 0);
+ assert_se(sd_icmp6_nd_set_callback(nd, test_prefixes_cb, e) >= 0);
+
+ assert_se(sd_icmp6_router_solicitation_start(nd) >= 0);
+
+ sd_event_loop(e);
+
+ nd = sd_icmp6_nd_unref(nd);
+ assert_se(!nd);
+
+ close(test_fd[1]);
+
+ sd_event_unref(e);
+}
+
+static int send_ra(uint8_t flags) {
+ uint8_t advertisement[] = {
+ 0x86, 0x00, 0xde, 0x83, 0x40, 0xc0, 0x00, 0xb4,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 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,
+ 0x19, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3c,
+ 0x20, 0x01, 0x0d, 0xb8, 0xde, 0xad, 0xbe, 0xef,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
+ 0x1f, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3c,
+ 0x03, 0x6c, 0x61, 0x62, 0x05, 0x69, 0x6e, 0x74,
+ 0x72, 0x61, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x01, 0x01, 0x78, 0x2b, 0xcb, 0xb3, 0x6d, 0x53,
+ };
+
+ advertisement[5] = flags;
+
+ assert_se(write(test_fd[1], advertisement, sizeof(advertisement)) ==
+ sizeof(advertisement));
+
+ if (verbose)
+ printf(" sent RA with flag 0x%02x\n", flags);
+
+ return 0;
+}
+
+int dhcp_network_icmp6_send_router_solicitation(int s, const struct ether_addr *ether_addr) {
+ return send_ra_function(0);
+}
+
+static void test_rs_done(sd_icmp6_nd *nd, int event, void *userdata) {
+ sd_event *e = userdata;
+ static int idx = 0;
+ struct {
+ uint8_t flag;
+ int event;
+ } flag_event[] = {
+ { 0, SD_ICMP6_ND_EVENT_ROUTER_ADVERTISMENT_NONE },
+ { ND_RA_FLAG_OTHER, SD_ICMP6_ND_EVENT_ROUTER_ADVERTISMENT_OTHER },
+ { ND_RA_FLAG_MANAGED, SD_ICMP6_ND_EVENT_ROUTER_ADVERTISMENT_MANAGED }
+ };
+ uint32_t mtu;
+
+ assert_se(nd);
+
+ assert_se(event == flag_event[idx].event);
+ idx++;
+
+ if (verbose)
+ printf(" got event %d\n", event);
+
+ if (idx < 3) {
+ send_ra(flag_event[idx].flag);
+ return;
+ }
+
+ assert_se(sd_icmp6_ra_get_mtu(nd, &mtu) == -ENOMSG);
+
+ sd_event_exit(e, 0);
+}
+
+static void test_rs(void) {
+ sd_event *e;
+ sd_icmp6_nd *nd;
+ usec_t time_now = now(clock_boottime_or_monotonic());
+
+ if (verbose)
+ printf("* %s\n", __FUNCTION__);
+
+ send_ra_function = send_ra;
+
+ assert_se(sd_event_new(&e) >= 0);
+
+ assert_se(sd_icmp6_nd_new(&nd) >= 0);
+ assert_se(nd);
+
+ assert_se(sd_icmp6_nd_attach_event(nd, e, 0) >= 0);
+
+ assert_se(sd_icmp6_nd_set_index(nd, 42) >= 0);
+ assert_se(sd_icmp6_nd_set_mac(nd, &mac_addr) >= 0);
+ assert_se(sd_icmp6_nd_set_callback(nd, test_rs_done, e) >= 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_icmp6_nd_stop(nd) >= 0);
+ assert_se(sd_icmp6_router_solicitation_start(nd) >= 0);
+ assert_se(sd_icmp6_nd_stop(nd) >= 0);
+
+ assert_se(sd_icmp6_router_solicitation_start(nd) >= 0);
+
+ sd_event_loop(e);
+
+ test_hangcheck = sd_event_source_unref(test_hangcheck);
+
+ nd = sd_icmp6_nd_unref(nd);
+ assert_se(!nd);
+
+ close(test_fd[1]);
+
+ sd_event_unref(e);
+}
+
+int main(int argc, char *argv[]) {
+
+ log_set_max_level(LOG_DEBUG);
+ log_parse_environment();
+ log_open();
+
+ test_rs();
+ test_prefixes();
+
+ return 0;
+}
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-07-24 20:33:55 +0000