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sd-ipv4{acd,ll}: add simple test programs

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These programs should be run manually, typically two instances on a
veth pair to check conflict detection.

Both test programs take the ifname as input, the ACD also takes the
IP address to check, whereas LL (optionally) takes the seed, which
determines the sequence of IP addresses to try.
This commit is contained in:
Tom Gundersen 2015-08-21 23:04:14 +02:00
parent e3dca0089b
commit 7b713b81c2
3 changed files with 265 additions and 1 deletions
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20
Makefile.am
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@ -1367,7 +1367,9 @@ manual_tests += \
test-watchdog \
test-log \
test-ipcrm \
test-btrfs
test-btrfs \
test-acd \
test-ipv4ll-manual
if HAVE_LIBIPTC
manual_tests += \
@ -3281,6 +3283,22 @@ test_ipv4ll_LDADD = \
libsystemd-network.la \
libshared.la
test_ipv4ll_manual_SOURCES = \
src/systemd/sd-ipv4ll.h \
src/libsystemd-network/test-ipv4ll-manual.c
test_ipv4ll_manual_LDADD = \
libsystemd-network.la \
libshared.la
test_acd_SOURCES = \
src/systemd/sd-ipv4acd.h \
src/libsystemd-network/test-acd.c
test_acd_LDADD = \
libsystemd-network.la \
libshared.la
test_pppoe_SOURCES = \
src/systemd/sd-pppoe.h \
src/libsystemd-network/test-pppoe.c

117
src/libsystemd-network/test-acd.c Normal file
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@ -0,0 +1,117 @@
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
/***
This file is part of systemd.
Copyright (C) 2014 Tom Gundersen <teg@jklm.no>
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 <stdlib.h>
#include <errno.h>
#include <unistd.h>
#include <linux/veth.h>
#include <net/if.h>
#include "sd-event.h"
#include "sd-netlink.h"
#include "sd-ipv4acd.h"
#include "util.h"
#include "event-util.h"
#include "netlink-util.h"
#include "in-addr-util.h"
static void acd_handler(sd_ipv4acd *acd, int event, void *userdata) {
assert_se(acd);
switch (event) {
case IPV4ACD_EVENT_BIND:
log_info("bound");
break;
case IPV4ACD_EVENT_CONFLICT:
log_info("conflict");
break;
case IPV4ACD_EVENT_STOP:
log_error("the client was stopped");
break;
default:
assert_not_reached("invalid ACD event");
}
}
static int client_run(int ifindex, const struct in_addr *pa, const struct ether_addr *ha, sd_event *e) {
sd_ipv4acd *acd;
assert_se(sd_ipv4acd_new(&acd) >= 0);
assert_se(sd_ipv4acd_attach_event(acd, e, 0) >= 0);
assert_se(sd_ipv4acd_set_index(acd, ifindex) >= 0);
assert_se(sd_ipv4acd_set_mac(acd, ha) >= 0);
assert_se(sd_ipv4acd_set_address(acd, pa) >= 0);
assert_se(sd_ipv4acd_set_callback(acd, acd_handler, NULL) >= 0);
log_info("starting IPv4ACD client");
assert_se(sd_ipv4acd_start(acd) >= 0);
assert_se(sd_event_loop(e) >= 0);
assert_se(!sd_ipv4acd_unref(acd));
return EXIT_SUCCESS;
}
static int test_acd(const char *ifname, const char *address) {
_cleanup_event_unref_ sd_event *e = NULL;
_cleanup_netlink_unref_ sd_netlink *rtnl = NULL;
_cleanup_netlink_message_unref_ sd_netlink_message *m = NULL, *reply = NULL;
union in_addr_union pa;
struct ether_addr ha;
int ifindex;
assert_se(in_addr_from_string(AF_INET, address, &pa) >= 0);
assert_se(sd_event_new(&e) >= 0);
assert_se(sd_netlink_open(&rtnl) >= 0);
assert_se(sd_netlink_attach_event(rtnl, e, 0) >= 0);
assert_se(sd_rtnl_message_new_link(rtnl, &m, RTM_GETLINK, 0) >= 0);
assert_se(sd_netlink_message_append_string(m, IFLA_IFNAME, ifname) >= 0);
assert_se(sd_netlink_call(rtnl, m, 0, &reply) >= 0);
assert_se(sd_rtnl_message_link_get_ifindex(reply, &ifindex) >= 0);
assert_se(sd_netlink_message_read_ether_addr(reply, IFLA_ADDRESS, &ha) >= 0);
client_run(ifindex, &pa.in, &ha, e);
return EXIT_SUCCESS;
}
int main(int argc, char *argv[]) {
log_set_max_level(LOG_DEBUG);
log_parse_environment();
log_open();
if (argc == 3)
return test_acd(argv[1], argv[2]);
else {
log_error("This program takes two arguments.\n"
"\t %s <ifname> <IPv4 address>", program_invocation_short_name);
return EXIT_FAILURE;
}
}

129
src/libsystemd-network/test-ipv4ll-manual.c Normal file
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@ -0,0 +1,129 @@
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
/***
This file is part of systemd.
Copyright (C) 2014 Tom Gundersen <teg@jklm.no>
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 <stdlib.h>
#include <errno.h>
#include <unistd.h>
#include <linux/veth.h>
#include <net/if.h>
#include "sd-event.h"
#include "sd-netlink.h"
#include "sd-ipv4ll.h"
#include "util.h"
#include "event-util.h"
#include "netlink-util.h"
#include "in-addr-util.h"
static void ll_handler(sd_ipv4ll *ll, int event, void *userdata) {
_cleanup_free_ char *address = NULL;
struct in_addr addr = {};
assert_se(ll);
if (sd_ipv4ll_get_address(ll, &addr) >= 0)
assert_se(in_addr_to_string(AF_INET, (const union in_addr_union*) &addr, &address) >= 0);
switch (event) {
case IPV4LL_EVENT_BIND:
log_info("bound %s", strna(address));
break;
case IPV4LL_EVENT_CONFLICT:
log_info("conflict on %s", strna(address));
break;
case IPV4LL_EVENT_STOP:
log_error("the client was stopped with address %s", strna(address));
break;
default:
assert_not_reached("invalid LL event");
}
}
static int client_run(int ifindex, const char *seed_str, const struct ether_addr *ha, sd_event *e) {
sd_ipv4ll *ll;
assert_se(sd_ipv4ll_new(&ll) >= 0);
assert_se(sd_ipv4ll_attach_event(ll, e, 0) >= 0);
assert_se(sd_ipv4ll_set_index(ll, ifindex) >= 0);
assert_se(sd_ipv4ll_set_mac(ll, ha) >= 0);
assert_se(sd_ipv4ll_set_callback(ll, ll_handler, NULL) >= 0);
if (seed_str) {
unsigned seed;
assert_se(safe_atou(seed_str, &seed) >= 0);
assert_se(sd_ipv4ll_set_address_seed(ll, seed) >= 0);
}
log_info("starting IPv4LL client");
assert_se(sd_ipv4ll_start(ll) >= 0);
assert_se(sd_event_loop(e) >= 0);
assert_se(!sd_ipv4ll_unref(ll));
return EXIT_SUCCESS;
}
static int test_ll(const char *ifname, const char *seed) {
_cleanup_event_unref_ sd_event *e = NULL;
_cleanup_netlink_unref_ sd_netlink *rtnl = NULL;
_cleanup_netlink_message_unref_ sd_netlink_message *m = NULL, *reply = NULL;
struct ether_addr ha;
int ifindex;
assert_se(sd_event_new(&e) >= 0);
assert_se(sd_netlink_open(&rtnl) >= 0);
assert_se(sd_netlink_attach_event(rtnl, e, 0) >= 0);
assert_se(sd_rtnl_message_new_link(rtnl, &m, RTM_GETLINK, 0) >= 0);
assert_se(sd_netlink_message_append_string(m, IFLA_IFNAME, ifname) >= 0);
assert_se(sd_netlink_call(rtnl, m, 0, &reply) >= 0);
assert_se(sd_rtnl_message_link_get_ifindex(reply, &ifindex) >= 0);
assert_se(sd_netlink_message_read_ether_addr(reply, IFLA_ADDRESS, &ha) >= 0);
client_run(ifindex, seed, &ha, e);
return EXIT_SUCCESS;
}
int main(int argc, char *argv[]) {
log_set_max_level(LOG_DEBUG);
log_parse_environment();
log_open();
if (argc == 2)
return test_ll(argv[1], NULL);
else if (argc == 3)
return test_ll(argv[1], argv[2]);
else {
log_error("This program takes one or two arguments.\n"
"\t %s <ifname> [<seed>]", program_invocation_short_name);
return EXIT_FAILURE;
}
}