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Diffstat (limited to 'src/libsystemd-network/test-pppoe.c')
| -rw-r--r-- | src/libsystemd-network/test-pppoe.c | 181 |
1 files changed, 181 insertions, 0 deletions
diff --git a/src/libsystemd-network/test-pppoe.c b/src/libsystemd-network/test-pppoe.c new file mode 100644 index 000000000..0d419aa17 --- /dev/null +++ b/src/libsystemd-network/test-pppoe.c @@ -0,0 +1,181 @@ +/*-*- 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 <assert.h> +#include <errno.h> +#include <stdio.h> +#include <sys/types.h> +#include <sys/socket.h> +#include <unistd.h> + +#include <linux/veth.h> +#include <net/if.h> + +#include "util.h" +#include "socket-util.h" +#include "sd-event.h" +#include "event-util.h" +#include "sd-rtnl.h" +#include "rtnl-util.h" +#include "sd-pppoe.h" + +static void pppoe_handler(sd_pppoe *ppp, int event, void *userdata) { + static int pppoe_state = -1; + sd_event *e = userdata; + + assert_se(ppp); + assert_se(e); + + switch (event) { + case PPPOE_EVENT_RUNNING: + assert_se(pppoe_state == -1); + log_info("running"); + break; + case PPPOE_EVENT_STOPPED: + assert_se(pppoe_state == PPPOE_EVENT_RUNNING); + log_info("stopped"); + assert_se(sd_event_exit(e, 0) >= 0); + break; + default: + assert_not_reached("invalid pppoe event"); + } + + pppoe_state = event; +} + +static int client_run(const char *client_name, sd_event *e) { + sd_pppoe *pppoe; + int client_ifindex; + + client_ifindex = (int) if_nametoindex(client_name); + assert_se(client_ifindex > 0); + + assert_se(sd_pppoe_new(&pppoe) >= 0); + assert_se(sd_pppoe_attach_event(pppoe, e, 0) >= 0); + + assert_se(sd_pppoe_set_ifname(pppoe, "pppoe-client") >= 0); + assert_se(sd_pppoe_set_ifindex(pppoe, client_ifindex) >= 0); + assert_se(sd_pppoe_set_callback(pppoe, pppoe_handler, e) >= 0); + + log_info("starting PPPoE client, it will exit when the server times out and sends PADT"); + + assert_se(sd_pppoe_start(pppoe) >= 0); + + assert_se(sd_event_loop(e) >= 0); + + assert_se(!sd_pppoe_unref(pppoe)); + + return EXIT_SUCCESS; +} + +static int test_pppoe_server(sd_event *e) { + sd_rtnl *rtnl; + sd_rtnl_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_rtnl_open(&rtnl, 0) >= 0); + assert_se(sd_rtnl_attach_event(rtnl, e, 0) >= 0); + + assert_se(sd_rtnl_message_new_link(rtnl, &m, RTM_NEWLINK, 0) >= 0); + assert_se(sd_rtnl_message_append_string(m, IFLA_IFNAME, "pppoe-server") >= 0); + assert_se(sd_rtnl_message_open_container(m, IFLA_LINKINFO) >= 0); + assert_se(sd_rtnl_message_open_container_union(m, IFLA_INFO_DATA, "veth") >= 0); + assert_se(sd_rtnl_message_open_container(m, VETH_INFO_PEER) >= 0); + assert_se(sd_rtnl_message_append_string(m, IFLA_IFNAME, "pppoe-client") >= 0); + assert_se(sd_rtnl_message_close_container(m) >= 0); + assert_se(sd_rtnl_message_close_container(m) >= 0); + assert_se(sd_rtnl_message_close_container(m) >= 0); + assert_se(sd_rtnl_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_rtnl_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_rtnl_call(rtnl, m, 0, NULL) >= 0); + + m = sd_rtnl_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_rtnl_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-Auxillary", + "-S", "Service-Second-Auxillary", + 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_rtnl_message_unref(m)); + assert_se(!sd_rtnl_unref(rtnl)); + + return EXIT_SUCCESS; +} + +int main(int argc, char *argv[]) { + _cleanup_event_unref_ sd_event *e = NULL; + + log_set_max_level(LOG_DEBUG); + log_parse_environment(); + log_open(); + + assert_se(sd_event_new(&e) >= 0); + + if (argc == 1) { + log_info("running PPPoE client against local server"); + + return test_pppoe_server(e); + } else if (argc == 2) { + log_info("running PPPoE client over '%s'", argv[1]); + + return client_run(argv[1], e); + } else { + log_error("This program takes one or no arguments.\n" + "\t %s [<ifname>]", program_invocation_short_name); + return EXIT_FAILURE; + } +} |