2 This file is part of systemd.
4 Copyright (C) 2014 Tom Gundersen <teg@jklm.no>
6 systemd is free software; you can redistribute it and/or modify it
7 under the terms of the GNU Lesser General Public License as published by
8 the Free Software Foundation; either version 2.1 of the License, or
9 (at your option) any later version.
11 systemd is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
16 You should have received a copy of the GNU Lesser General Public License
17 along with systemd; If not, see <http://www.gnu.org/licenses/>.
24 #include <linux/veth.h>
28 #include "sd-ipv4acd.h"
29 #include "sd-netlink.h"
31 #include "in-addr-util.h"
32 #include "netlink-util.h"
35 static void acd_handler(sd_ipv4acd
*acd
, int event
, void *userdata
) {
39 case SD_IPV4ACD_EVENT_BIND
:
42 case SD_IPV4ACD_EVENT_CONFLICT
:
45 case SD_IPV4ACD_EVENT_STOP
:
46 log_error("the client was stopped");
49 assert_not_reached("invalid ACD event");
53 static int client_run(int ifindex
, const struct in_addr
*pa
, const struct ether_addr
*ha
, sd_event
*e
) {
56 assert_se(sd_ipv4acd_new(&acd
) >= 0);
57 assert_se(sd_ipv4acd_attach_event(acd
, e
, 0) >= 0);
59 assert_se(sd_ipv4acd_set_index(acd
, ifindex
) >= 0);
60 assert_se(sd_ipv4acd_set_mac(acd
, ha
) >= 0);
61 assert_se(sd_ipv4acd_set_address(acd
, pa
) >= 0);
62 assert_se(sd_ipv4acd_set_callback(acd
, acd_handler
, NULL
) >= 0);
64 log_info("starting IPv4ACD client");
66 assert_se(sd_ipv4acd_start(acd
) >= 0);
68 assert_se(sd_event_loop(e
) >= 0);
70 assert_se(!sd_ipv4acd_unref(acd
));
75 static int test_acd(const char *ifname
, const char *address
) {
76 _cleanup_(sd_event_unrefp
) sd_event
*e
= NULL
;
77 _cleanup_(sd_netlink_unrefp
) sd_netlink
*rtnl
= NULL
;
78 _cleanup_(sd_netlink_message_unrefp
) sd_netlink_message
*m
= NULL
, *reply
= NULL
;
79 union in_addr_union pa
;
83 assert_se(in_addr_from_string(AF_INET
, address
, &pa
) >= 0);
85 assert_se(sd_event_new(&e
) >= 0);
87 assert_se(sd_netlink_open(&rtnl
) >= 0);
88 assert_se(sd_netlink_attach_event(rtnl
, e
, 0) >= 0);
90 assert_se(sd_rtnl_message_new_link(rtnl
, &m
, RTM_GETLINK
, 0) >= 0);
91 assert_se(sd_netlink_message_append_string(m
, IFLA_IFNAME
, ifname
) >= 0);
92 assert_se(sd_netlink_call(rtnl
, m
, 0, &reply
) >= 0);
94 assert_se(sd_rtnl_message_link_get_ifindex(reply
, &ifindex
) >= 0);
95 assert_se(sd_netlink_message_read_ether_addr(reply
, IFLA_ADDRESS
, &ha
) >= 0);
97 client_run(ifindex
, &pa
.in
, &ha
, e
);
102 int main(int argc
, char *argv
[]) {
103 log_set_max_level(LOG_DEBUG
);
104 log_parse_environment();
108 return test_acd(argv
[1], argv
[2]);
110 log_error("This program takes two arguments.\n"
111 "\t %s <ifname> <IPv4 address>", program_invocation_short_name
);