diff options
| -rw-r--r-- | Makefile.am | 10 | ||||
| -rw-r--r-- | src/network/networkd-wait-online.c | 142 |
2 files changed, 152 insertions, 0 deletions
diff --git a/Makefile.am b/Makefile.am index b7c38b6871..6be64070f4 100644 --- a/Makefile.am +++ b/Makefile.am @@ -4047,6 +4047,16 @@ nodist_systemunit_DATA += \ GENERAL_ALIASES += \ $(systemunitdir)/systemd-networkd.service $(pkgsysconfdir)/system/multi-user.target.wants/systemd-networkd.service +rootlibexec_PROGRAMS += \ + systemd-networkd-wait-online + +systemd_networkd_wait_online_SOURCES = \ + src/network/networkd-wait-online.c + +systemd_networkd_wait_online_LDADD = \ + libsystemd-internal.la \ + libsystemd-network.la + test_network_SOURCES = \ src/network/test-network.c diff --git a/src/network/networkd-wait-online.c b/src/network/networkd-wait-online.c new file mode 100644 index 0000000000..900dc05125 --- /dev/null +++ b/src/network/networkd-wait-online.c @@ -0,0 +1,142 @@ +/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ + +/*** + This file is part of systemd. + + Copyright 2013 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 "sd-event.h" +#include "sd-daemon.h" +#include "sd-network.h" + +#include "util.h" + +static bool all_configured(void) { + _cleanup_free_ unsigned *indices = NULL; + bool one_ready = false; + int r, n, i; + + n = sd_network_get_ifindices(&indices); + if (n <= 0) + return false; + + for (i = 0; i < n; i++) { + _cleanup_free_ char *state = NULL; + + r = sd_network_get_link_state(indices[i], &state); + if (r < 0) + return false; + + if (streq(state, "configured")) + one_ready = true; + + if (!streq(state, "configured") && !streq(state, "unmanaged")) + return false; + } + + if (one_ready) + return true; + + return false; +} + +static int event_handler(sd_event_source *s, int fd, uint32_t revents, + void *userdata) { + sd_event *event = userdata; + + assert(event); + + if (all_configured()) + sd_event_exit(event, 0); + + return 1; +} + +int main(int argc, char *argv[]) { + sd_event *event; + sd_event_source *event_source; + sd_network_monitor *monitor; + int r, fd, events; + + log_set_target(LOG_TARGET_AUTO); + log_parse_environment(); + log_open(); + + umask(0022); + + if (argc != 1) { + log_error("This program takes no arguments."); + r = -EINVAL; + goto out; + } + + r = sd_network_monitor_new(NULL, &monitor); + if (r < 0) { + log_error("Could not create monitor: %s", strerror(-r)); + goto out; + } + + r = sd_event_new(&event); + if (r < 0) { + log_error("Could not create event: %s", strerror(-r)); + goto out; + } + + fd = sd_network_monitor_get_fd(monitor); + if (fd < 0) { + log_error("Could not get monitor fd: %s", strerror(-r)); + goto out; + } + + events = sd_network_monitor_get_events(monitor); + if (events < 0) { + log_error("Could not get monitor events: %s", strerror(-r)); + goto out; + } + + r = sd_event_add_io(event, &event_source, fd, events, &event_handler, + event); + if (r < 0) { + log_error("Could not add io event source: %s", strerror(-r)); + goto out; + } + + if (all_configured()) { + r = 0; + goto out; + } + + sd_notify(false, + "READY=1\n" + "STATUS=Waiting for network connecitons..."); + + r = sd_event_loop(event); + if (r < 0) { + log_error("Event loop failed: %s", strerror(-r)); + goto out; + } + +out: + sd_notify(false, + "STATUS=All interfaces configured..."); + + sd_event_source_unref(event_source); + sd_event_unref(event); + sd_network_monitor_unref(monitor); + + return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; +} |