147 lines
4.5 KiB
C
147 lines
4.5 KiB
C
/***
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This file is part of systemd.
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Copyright 2014 Susant Sahani
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include <arpa/inet.h>
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#include <libkmod.h>
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#include <linux/ip.h>
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#include <net/if.h>
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#include <linux/if_tunnel.h>
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#include "sd-netlink.h"
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#include "macro.h"
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#include "util.h"
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static int load_module(const char *mod_name) {
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struct kmod_ctx *ctx;
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struct kmod_list *list = NULL, *l;
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int r;
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ctx = kmod_new(NULL, NULL);
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if (!ctx) {
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kmod_unref(ctx);
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return -ENOMEM;
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}
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r = kmod_module_new_from_lookup(ctx, mod_name, &list);
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if (r < 0)
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return -1;
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kmod_list_foreach(l, list) {
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struct kmod_module *mod = kmod_module_get_module(l);
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r = kmod_module_probe_insert_module(mod, 0, NULL, NULL, NULL, NULL);
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if (r >= 0)
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r = 0;
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else
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r = -1;
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kmod_module_unref(mod);
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}
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kmod_module_unref_list(list);
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kmod_unref(ctx);
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return r;
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}
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static int test_tunnel_configure(sd_netlink *rtnl) {
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int r;
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sd_netlink_message *m, *n;
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struct in_addr local, remote;
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/* skip test if module cannot be loaded */
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r = load_module("ipip");
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if (r < 0)
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return EXIT_TEST_SKIP;
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if (getuid() != 0)
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return EXIT_TEST_SKIP;
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/* IPIP tunnel */
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assert_se(sd_rtnl_message_new_link(rtnl, &m, RTM_NEWLINK, 0) >= 0);
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assert_se(m);
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assert_se(sd_netlink_message_append_string(m, IFLA_IFNAME, "ipip-tunnel") >= 0);
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assert_se(sd_netlink_message_append_u32(m, IFLA_MTU, 1234)>= 0);
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assert_se(sd_netlink_message_open_container(m, IFLA_LINKINFO) >= 0);
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assert_se(sd_netlink_message_open_container_union(m, IFLA_INFO_DATA, "ipip") >= 0);
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inet_pton(AF_INET, "192.168.21.1", &local.s_addr);
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assert_se(sd_netlink_message_append_u32(m, IFLA_IPTUN_LOCAL, local.s_addr) >= 0);
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inet_pton(AF_INET, "192.168.21.2", &remote.s_addr);
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assert_se(sd_netlink_message_append_u32(m, IFLA_IPTUN_REMOTE, remote.s_addr) >= 0);
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assert_se(sd_netlink_message_close_container(m) >= 0);
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assert_se(sd_netlink_message_close_container(m) >= 0);
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assert_se(sd_netlink_call(rtnl, m, -1, 0) == 1);
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assert_se((m = sd_netlink_message_unref(m)) == NULL);
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r = load_module("sit");
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if (r < 0)
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return EXIT_TEST_SKIP;
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/* sit */
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assert_se(sd_rtnl_message_new_link(rtnl, &n, RTM_NEWLINK, 0) >= 0);
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assert_se(n);
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assert_se(sd_netlink_message_append_string(n, IFLA_IFNAME, "sit-tunnel") >= 0);
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assert_se(sd_netlink_message_append_u32(n, IFLA_MTU, 1234)>= 0);
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assert_se(sd_netlink_message_open_container(n, IFLA_LINKINFO) >= 0);
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assert_se(sd_netlink_message_open_container_union(n, IFLA_INFO_DATA, "sit") >= 0);
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assert_se(sd_netlink_message_append_u8(n, IFLA_IPTUN_PROTO, IPPROTO_IPIP) >= 0);
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inet_pton(AF_INET, "192.168.21.3", &local.s_addr);
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assert_se(sd_netlink_message_append_u32(n, IFLA_IPTUN_LOCAL, local.s_addr) >= 0);
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inet_pton(AF_INET, "192.168.21.4", &remote.s_addr);
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assert_se(sd_netlink_message_append_u32(n, IFLA_IPTUN_REMOTE, remote.s_addr) >= 0);
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assert_se(sd_netlink_message_close_container(n) >= 0);
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assert_se(sd_netlink_message_close_container(n) >= 0);
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assert_se(sd_netlink_call(rtnl, n, -1, 0) == 1);
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assert_se((n = sd_netlink_message_unref(n)) == NULL);
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return EXIT_SUCCESS;
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}
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int main(int argc, char *argv[]) {
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sd_netlink *rtnl;
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int r;
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assert_se(sd_netlink_open(&rtnl) >= 0);
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assert_se(rtnl);
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r = test_tunnel_configure(rtnl);
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assert_se((rtnl = sd_netlink_unref(rtnl)) == NULL);
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return r;
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}
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