diff options
Diffstat (limited to 'src/libsystemd-network/test-ndisc-rs.c')
| -rw-r--r-- | src/libsystemd-network/test-ndisc-rs.c | 170 |
1 files changed, 170 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..a485be704e --- /dev/null +++ b/src/libsystemd-network/test-ndisc-rs.c @@ -0,0 +1,170 @@ +/*-*- 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; +} |