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109 lines
3.3 KiB
C
109 lines
3.3 KiB
C
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
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/***
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This file is part of systemd.
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Copyright 2013 Tom Gundersen
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include "link-config.h"
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#include "udev.h"
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#include "log.h"
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static link_config_ctx *ctx = NULL;
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static int builtin_net_setup_link(struct udev_device *dev, int argc, char **argv, bool test) {
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_cleanup_free_ char *driver = NULL;
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const char *name = NULL;
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link_config *link;
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int r;
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if (argc > 1) {
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log_error("This program takes no arguments.");
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return EXIT_FAILURE;
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}
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r = link_get_driver(ctx, dev, &driver);
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if (r >= 0)
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udev_builtin_add_property(dev, test, "ID_NET_DRIVER", driver);
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r = link_config_get(ctx, dev, &link);
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if (r < 0) {
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if (r == -ENOENT) {
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log_debug("No matching link configuration found.");
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return EXIT_SUCCESS;
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} else {
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log_error_errno(r, "Could not get link config: %m");
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return EXIT_FAILURE;
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}
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}
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r = link_config_apply(ctx, link, dev, &name);
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if (r < 0) {
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log_error_errno(r, "Could not apply link config to %s: %m", udev_device_get_sysname(dev));
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return EXIT_FAILURE;
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}
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udev_builtin_add_property(dev, test, "ID_NET_LINK_FILE", link->filename);
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if (name)
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udev_builtin_add_property(dev, test, "ID_NET_NAME", name);
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return EXIT_SUCCESS;
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}
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static int builtin_net_setup_link_init(struct udev *udev) {
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int r;
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if (ctx)
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return 0;
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r = link_config_ctx_new(&ctx);
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if (r < 0)
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return r;
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r = link_config_load(ctx);
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if (r < 0)
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return r;
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log_debug("Created link configuration context.");
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return 0;
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}
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static void builtin_net_setup_link_exit(struct udev *udev) {
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link_config_ctx_free(ctx);
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ctx = NULL;
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log_debug("Unloaded link configuration context.");
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}
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static bool builtin_net_setup_link_validate(struct udev *udev) {
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log_debug("Check if link configuration needs reloading.");
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if (!ctx)
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return false;
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return link_config_should_reload(ctx);
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}
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const struct udev_builtin udev_builtin_net_setup_link = {
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.name = "net_setup_link",
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.cmd = builtin_net_setup_link,
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.init = builtin_net_setup_link_init,
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.exit = builtin_net_setup_link_exit,
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.validate = builtin_net_setup_link_validate,
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.help = "Configure network link",
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.run_once = false,
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};
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