From 55944e5e40b1be2afc4855d8d2baf4b73d1876b5 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 10 Apr 2024 22:49:52 +0200 Subject: Adding upstream version 255.4. Signed-off-by: Daniel Baumann --- src/udev/udev-builtin-net_setup_link.c | 113 +++++++++++++++++++++++++++++++++ 1 file changed, 113 insertions(+) create mode 100644 src/udev/udev-builtin-net_setup_link.c (limited to 'src/udev/udev-builtin-net_setup_link.c') diff --git a/src/udev/udev-builtin-net_setup_link.c b/src/udev/udev-builtin-net_setup_link.c new file mode 100644 index 0000000..a308a21 --- /dev/null +++ b/src/udev/udev-builtin-net_setup_link.c @@ -0,0 +1,113 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ + +#include "alloc-util.h" +#include "device-util.h" +#include "escape.h" +#include "errno-util.h" +#include "link-config.h" +#include "log.h" +#include "string-util.h" +#include "strv.h" +#include "udev-builtin.h" + +static LinkConfigContext *ctx = NULL; + +static int builtin_net_setup_link(UdevEvent *event, int argc, char **argv, bool test) { + sd_device *dev = ASSERT_PTR(ASSERT_PTR(event)->dev); + _cleanup_(link_freep) Link *link = NULL; + _cleanup_free_ char *joined = NULL; + int r; + + if (argc > 1) + return log_device_error_errno(dev, SYNTHETIC_ERRNO(EINVAL), "This program takes no arguments."); + + r = link_new(ctx, &event->rtnl, dev, &link); + if (r == -ENODEV) { + log_device_debug_errno(dev, r, "Link vanished while getting information, ignoring."); + return 0; + } + if (r < 0) + return log_device_warning_errno(dev, r, "Failed to get link information: %m"); + + r = link_get_config(ctx, link); + if (r < 0) { + if (r == -ENOENT) { + log_device_debug_errno(dev, r, "No matching link configuration found, ignoring device."); + return 0; + } + + return log_device_error_errno(dev, r, "Failed to get link config: %m"); + } + + r = link_apply_config(ctx, &event->rtnl, link); + if (r == -ENODEV) + log_device_debug_errno(dev, r, "Link vanished while applying configuration, ignoring."); + else if (r < 0) + log_device_warning_errno(dev, r, "Could not apply link configuration, ignoring: %m"); + + udev_builtin_add_property(dev, test, "ID_NET_LINK_FILE", link->config->filename); + if (link->new_name) + udev_builtin_add_property(dev, test, "ID_NET_NAME", link->new_name); + + event->altnames = TAKE_PTR(link->altnames); + + STRV_FOREACH(d, link->config->dropins) { + _cleanup_free_ char *escaped = NULL; + + escaped = xescape(*d, ":"); + if (!escaped) + return log_oom(); + + if (!strextend_with_separator(&joined, ":", escaped)) + return log_oom(); + } + + udev_builtin_add_property(dev, test, "ID_NET_LINK_FILE_DROPINS", joined); + + return 0; +} + +static int builtin_net_setup_link_init(void) { + 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(void) { + ctx = link_config_ctx_free(ctx); + log_debug("Unloaded link configuration context."); +} + +static bool builtin_net_setup_link_should_reload(void) { + if (!ctx) + return false; + + if (link_config_should_reload(ctx)) { + log_debug("Link configuration context needs reloading."); + return true; + } + + return false; +} + +const UdevBuiltin 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, + .should_reload = builtin_net_setup_link_should_reload, + .help = "Configure network link", + .run_once = false, +}; -- cgit v1.2.3