diff options
Diffstat (limited to 'src/grp-network/systemd-networkd/networkd.c')
| -rw-r--r-- | src/grp-network/systemd-networkd/networkd.c | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/src/grp-network/systemd-networkd/networkd.c b/src/grp-network/systemd-networkd/networkd.c new file mode 100644 index 0000000000..369cf91221 --- /dev/null +++ b/src/grp-network/systemd-networkd/networkd.c @@ -0,0 +1,139 @@ +/*** + 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 <systemd/sd-daemon.h> + +#include "networkd-conf.h" +#include "networkd.h" +#include "systemd-basic/capability-util.h" +#include "systemd-basic/signal-util.h" +#include "systemd-basic/user-util.h" + +int main(int argc, char *argv[]) { + _cleanup_manager_free_ Manager *m = NULL; + const char *user = "systemd-network"; + uid_t uid; + gid_t gid; + int r; + + 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 = get_user_creds(&user, &uid, &gid, NULL, NULL); + if (r < 0) { + log_error_errno(r, "Cannot resolve user name %s: %m", user); + goto out; + } + + /* Always create the directories people can create inotify + * watches in. */ + r = mkdir_safe_label("/run/systemd/netif", 0755, uid, gid); + if (r < 0) + log_warning_errno(r, "Could not create runtime directory: %m"); + + r = mkdir_safe_label("/run/systemd/netif/links", 0755, uid, gid); + if (r < 0) + log_warning_errno(r, "Could not create runtime directory 'links': %m"); + + r = mkdir_safe_label("/run/systemd/netif/leases", 0755, uid, gid); + if (r < 0) + log_warning_errno(r, "Could not create runtime directory 'leases': %m"); + + r = mkdir_safe_label("/run/systemd/netif/lldp", 0755, uid, gid); + if (r < 0) + log_warning_errno(r, "Could not create runtime directory 'lldp': %m"); + + r = drop_privileges(uid, gid, + (1ULL << CAP_NET_ADMIN) | + (1ULL << CAP_NET_BIND_SERVICE) | + (1ULL << CAP_NET_BROADCAST) | + (1ULL << CAP_NET_RAW)); + if (r < 0) + goto out; + + assert_se(sigprocmask_many(SIG_BLOCK, NULL, SIGTERM, SIGINT, -1) >= 0); + + r = manager_new(&m); + if (r < 0) { + log_error_errno(r, "Could not create manager: %m"); + goto out; + } + + r = manager_connect_bus(m); + if (r < 0) { + log_error_errno(r, "Could not connect to bus: %m"); + goto out; + } + + r = manager_parse_config_file(m); + if (r < 0) + log_warning_errno(r, "Failed to parse configuration file: %m"); + + r = manager_load_config(m); + if (r < 0) { + log_error_errno(r, "Could not load configuration files: %m"); + goto out; + } + + r = manager_rtnl_enumerate_links(m); + if (r < 0) { + log_error_errno(r, "Could not enumerate links: %m"); + goto out; + } + + r = manager_rtnl_enumerate_addresses(m); + if (r < 0) { + log_error_errno(r, "Could not enumerate addresses: %m"); + goto out; + } + + r = manager_rtnl_enumerate_routes(m); + if (r < 0) { + log_error_errno(r, "Could not enumerate routes: %m"); + goto out; + } + + log_info("Enumeration completed"); + + sd_notify(false, + "READY=1\n" + "STATUS=Processing requests..."); + + r = manager_run(m); + if (r < 0) { + log_error_errno(r, "Event loop failed: %m"); + goto out; + } + +out: + sd_notify(false, + "STOPPING=1\n" + "STATUS=Shutting down..."); + + return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; +} |