1 /* SPDX-License-Identifier: LGPL-2.1+ */
3 This file is part of systemd.
5 Copyright (C) 2014 Tom Gundersen <teg@jklm.no>
7 systemd is free software; you can redistribute it and/or modify it
8 under the terms of the GNU Lesser General Public License as published by
9 the Free Software Foundation; either version 2.1 of the License, or
10 (at your option) any later version.
12 systemd is distributed in the hope that it will be useful, but
13 WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 Lesser General Public License for more details.
17 You should have received a copy of the GNU Lesser General Public License
18 along with systemd; If not, see <http://www.gnu.org/licenses/>.
25 #include <linux/veth.h>
29 #include "sd-ipv4acd.h"
30 #include "sd-netlink.h"
32 #include "in-addr-util.h"
33 #include "netlink-util.h"
36 static void acd_handler(sd_ipv4acd
*acd
, int event
, void *userdata
) {
40 case SD_IPV4ACD_EVENT_BIND
:
43 case SD_IPV4ACD_EVENT_CONFLICT
:
46 case SD_IPV4ACD_EVENT_STOP
:
47 log_error("the client was stopped");
50 assert_not_reached("invalid ACD event");
54 static int client_run(int ifindex
, const struct in_addr
*pa
, const struct ether_addr
*ha
, sd_event
*e
) {
57 assert_se(sd_ipv4acd_new(&acd
) >= 0);
58 assert_se(sd_ipv4acd_attach_event(acd
, e
, 0) >= 0);
60 assert_se(sd_ipv4acd_set_ifindex(acd
, ifindex
) >= 0);
61 assert_se(sd_ipv4acd_set_mac(acd
, ha
) >= 0);
62 assert_se(sd_ipv4acd_set_address(acd
, pa
) >= 0);
63 assert_se(sd_ipv4acd_set_callback(acd
, acd_handler
, NULL
) >= 0);
65 log_info("starting IPv4ACD client");
67 assert_se(sd_ipv4acd_start(acd
) >= 0);
69 assert_se(sd_event_loop(e
) >= 0);
71 assert_se(!sd_ipv4acd_unref(acd
));
76 static int test_acd(const char *ifname
, const char *address
) {
77 _cleanup_(sd_event_unrefp
) sd_event
*e
= NULL
;
78 _cleanup_(sd_netlink_unrefp
) sd_netlink
*rtnl
= NULL
;
79 _cleanup_(sd_netlink_message_unrefp
) sd_netlink_message
*m
= NULL
, *reply
= NULL
;
80 union in_addr_union pa
;
84 assert_se(in_addr_from_string(AF_INET
, address
, &pa
) >= 0);
86 assert_se(sd_event_new(&e
) >= 0);
88 assert_se(sd_netlink_open(&rtnl
) >= 0);
89 assert_se(sd_netlink_attach_event(rtnl
, e
, 0) >= 0);
91 assert_se(sd_rtnl_message_new_link(rtnl
, &m
, RTM_GETLINK
, 0) >= 0);
92 assert_se(sd_netlink_message_append_string(m
, IFLA_IFNAME
, ifname
) >= 0);
93 assert_se(sd_netlink_call(rtnl
, m
, 0, &reply
) >= 0);
95 assert_se(sd_rtnl_message_link_get_ifindex(reply
, &ifindex
) >= 0);
96 assert_se(sd_netlink_message_read_ether_addr(reply
, IFLA_ADDRESS
, &ha
) >= 0);
98 client_run(ifindex
, &pa
.in
, &ha
, e
);
103 int main(int argc
, char *argv
[]) {
104 log_set_max_level(LOG_DEBUG
);
105 log_parse_environment();
109 return test_acd(argv
[1], argv
[2]);
111 log_error("This program takes two arguments.\n"
112 "\t %s <ifname> <IPv4 address>", program_invocation_short_name
);