/*-*- 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 "sd-ndisc.h" #include "icmp6-util.h" #include "socket-util.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 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(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 icmp6_send_router_solicitation(int s, const struct ether_addr *ether_addr) { return send_ra_function(0); } static void test_rs_done(sd_ndisc *nd, uint8_t flags, const struct in6_addr *gateway, unsigned lifetime, int pref, void *userdata) { sd_event *e = userdata; static unsigned idx = 0; uint8_t flags_array[] = { 0, 0, 0, ND_RA_FLAG_OTHER, ND_RA_FLAG_MANAGED }; uint32_t mtu; assert_se(nd); assert_se(flags == flags_array[idx]); idx++; if (verbose) printf(" got event 0x%02x\n", flags); if (idx < ELEMENTSOF(flags_array)) { send_ra(flags_array[idx]); return; } assert_se(sd_ndisc_get_mtu(nd, &mtu) == -ENOMSG); sd_event_exit(e, 0); } static void test_rs(void) { sd_event *e; sd_ndisc *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_ndisc_new(&nd) >= 0); assert_se(nd); assert_se(sd_ndisc_attach_event(nd, e, 0) >= 0); assert_se(sd_ndisc_set_index(nd, 42) >= 0); assert_se(sd_ndisc_set_mac(nd, &mac_addr) >= 0); assert_se(sd_ndisc_set_callback(nd, test_rs_done, NULL, NULL, NULL, 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_ndisc_stop(nd) >= 0); assert_se(sd_ndisc_router_discovery_start(nd) >= 0); assert_se(sd_ndisc_stop(nd) >= 0); assert_se(sd_ndisc_router_discovery_start(nd) >= 0); sd_event_loop(e); test_hangcheck = sd_event_source_unref(test_hangcheck); nd = sd_ndisc_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(); return 0; }