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/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
/***
This file is part of systemd.
Copyright 2013 Tom Gundersen
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 "link-config.h"
#include "udev.h"
#include "log.h"
static link_config_ctx *ctx = NULL;
static int builtin_net_setup_link(struct udev_device *dev, int argc, char **argv, bool test) {
_cleanup_free_ char *driver = NULL;
const char *name = NULL;
link_config *link;
int r;
if (argc > 1) {
log_error("This program takes no arguments.");
return EXIT_FAILURE;
}
r = link_get_driver(ctx, dev, &driver);
if (r >= 0)
udev_builtin_add_property(dev, test, "ID_NET_DRIVER", driver);
r = link_config_get(ctx, dev, &link);
if (r < 0) {
if (r == -ENOENT) {
log_debug("No matching link configuration found.");
return EXIT_SUCCESS;
} else {
log_error_errno(r, "Could not get link config: %m");
return EXIT_FAILURE;
}
}
r = link_config_apply(ctx, link, dev, &name);
if (r < 0) {
log_error_errno(r, "Could not apply link config to %s: %m", udev_device_get_sysname(dev));
return EXIT_FAILURE;
}
udev_builtin_add_property(dev, test, "ID_NET_LINK_FILE", link->filename);
if (name)
udev_builtin_add_property(dev, test, "ID_NET_NAME", name);
return EXIT_SUCCESS;
}
static int builtin_net_setup_link_init(struct udev *udev) {
int r;
if (ctx)
return 0;
r = link_config_ctx_new(&ctx);
if (r < 0)
return r;
r = link_config_load(ctx);
if (r < 0)
return r;
log_debug("Created link configuration context.");
return 0;
}
static void builtin_net_setup_link_exit(struct udev *udev) {
link_config_ctx_free(ctx);
ctx = NULL;
log_debug("Unloaded link configuration context.");
}
static bool builtin_net_setup_link_validate(struct udev *udev) {
log_debug("Check if link configuration needs reloading.");
if (!ctx)
return false;
return link_config_should_reload(ctx);
}
const struct udev_builtin udev_builtin_net_setup_link = {
.name = "net_setup_link",
.cmd = builtin_net_setup_link,
.init = builtin_net_setup_link_init,
.exit = builtin_net_setup_link_exit,
.validate = builtin_net_setup_link_validate,
.help = "Configure network link",
.run_once = false,
};
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