static int start_loopback(sd_netlink *rtnl) { _cleanup_netlink_message_unref_ sd_netlink_message *req = NULL; int r; r = sd_rtnl_message_new_link(rtnl, &req, RTM_SETLINK, LOOPBACK_IFINDEX); if (r < 0) return r; r = sd_rtnl_message_link_set_flags(req, IFF_UP, IFF_UP); if (r < 0) return r; r = sd_netlink_call(rtnl, req, 0, NULL); if (r < 0) return r; return 0; }
static int test_pppoe_server(sd_event *e) { sd_netlink *rtnl; sd_netlink_message *m; pid_t pid; int r, client_ifindex, server_ifindex; r = unshare(CLONE_NEWNET); if (r < 0 && errno == EPERM) return EXIT_TEST_SKIP; assert_se(r >= 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_NEWLINK, 0) >= 0); assert_se(sd_netlink_message_append_string(m, IFLA_IFNAME, "pppoe-server") >= 0); assert_se(sd_netlink_message_open_container(m, IFLA_LINKINFO) >= 0); assert_se(sd_netlink_message_open_container_union(m, IFLA_INFO_DATA, "veth") >= 0); assert_se(sd_netlink_message_open_container(m, VETH_INFO_PEER) >= 0); assert_se(sd_netlink_message_append_string(m, IFLA_IFNAME, "pppoe-client") >= 0); assert_se(sd_netlink_message_close_container(m) >= 0); assert_se(sd_netlink_message_close_container(m) >= 0); assert_se(sd_netlink_message_close_container(m) >= 0); assert_se(sd_netlink_call(rtnl, m, 0, NULL) >= 0); client_ifindex = (int) if_nametoindex("pppoe-client"); assert_se(client_ifindex > 0); server_ifindex = (int) if_nametoindex("pppoe-server"); assert_se(server_ifindex > 0); m = sd_netlink_message_unref(m); assert_se(sd_rtnl_message_new_link(rtnl, &m, RTM_SETLINK, client_ifindex) >= 0); assert_se(sd_rtnl_message_link_set_flags(m, IFF_UP, IFF_UP) >= 0); assert_se(sd_netlink_call(rtnl, m, 0, NULL) >= 0); m = sd_netlink_message_unref(m); assert_se(sd_rtnl_message_new_link(rtnl, &m, RTM_SETLINK, server_ifindex) >= 0); assert_se(sd_rtnl_message_link_set_flags(m, IFF_UP, IFF_UP) >= 0); assert_se(sd_netlink_call(rtnl, m, 0, NULL) >= 0); pid = fork(); assert_se(pid >= 0); if (pid == 0) { /* let the client send some discover messages before the server is started */ sleep(2); /* TODO: manage pppoe-server-options */ execlp("pppoe-server", "pppoe-server", "-F", "-I", "pppoe-server", "-C", "Test-AC", "-S", "Service-Default", "-S", "Service-First-Auxiliary", "-S", "Service-Second-Auxiliary", NULL); assert_not_reached("failed to execute pppoe-server. not installed?"); } client_run("pppoe-client", e); assert_se(kill(pid, SIGTERM) >= 0); assert_se(wait_for_terminate(pid, NULL) >= 0); assert_se(!sd_netlink_message_unref(m)); assert_se(!sd_netlink_unref(rtnl)); return EXIT_SUCCESS; }