Line data    Source code

       1             : /* SPDX-License-Identifier: LGPL-2.1+ */
       2             : 
       3             : #include "device-util.h"
       4             : #include "alloc-util.h"
       5             : #include "link-config.h"
       6             : #include "log.h"
       7             : #include "string-util.h"
       8             : #include "udev-builtin.h"
       9             : 
      10             : static link_config_ctx *ctx = NULL;
      11             : 
      12           0 : static int builtin_net_setup_link(sd_device *dev, int argc, char **argv, bool test) {
      13           0 :         _cleanup_free_ char *driver = NULL;
      14           0 :         const char *name = NULL;
      15             :         link_config *link;
      16             :         int r;
      17             : 
      18           0 :         if (argc > 1)
      19           0 :                 return log_device_error_errno(dev, SYNTHETIC_ERRNO(EINVAL), "This program takes no arguments.");
      20             : 
      21           0 :         r = link_get_driver(ctx, dev, &driver);
      22           0 :         if (r >= 0)
      23           0 :                 udev_builtin_add_property(dev, test, "ID_NET_DRIVER", driver);
      24             : 
      25           0 :         r = link_config_get(ctx, dev, &link);
      26           0 :         if (r < 0) {
      27           0 :                 if (r == -ENOENT)
      28           0 :                         return log_device_debug_errno(dev, r, "No matching link configuration found.");
      29             : 
      30           0 :                 return log_device_error_errno(dev, r, "Failed to get link config: %m");
      31             :         }
      32             : 
      33           0 :         r = link_config_apply(ctx, link, dev, &name);
      34           0 :         if (r < 0)
      35           0 :                 log_device_warning_errno(dev, r, "Could not apply link config, ignoring: %m");
      36             : 
      37           0 :         udev_builtin_add_property(dev, test, "ID_NET_LINK_FILE", link->filename);
      38             : 
      39           0 :         if (name)
      40           0 :                 udev_builtin_add_property(dev, test, "ID_NET_NAME", name);
      41             : 
      42           0 :         return 0;
      43             : }
      44             : 
      45           0 : static int builtin_net_setup_link_init(void) {
      46             :         int r;
      47             : 
      48           0 :         if (ctx)
      49           0 :                 return 0;
      50             : 
      51           0 :         r = link_config_ctx_new(&ctx);
      52           0 :         if (r < 0)
      53           0 :                 return r;
      54             : 
      55           0 :         r = link_config_load(ctx);
      56           0 :         if (r < 0)
      57           0 :                 return r;
      58             : 
      59           0 :         log_debug("Created link configuration context.");
      60           0 :         return 0;
      61             : }
      62             : 
      63           0 : static void builtin_net_setup_link_exit(void) {
      64           0 :         link_config_ctx_free(ctx);
      65           0 :         ctx = NULL;
      66           0 :         log_debug("Unloaded link configuration context.");
      67           0 : }
      68             : 
      69           0 : static bool builtin_net_setup_link_validate(void) {
      70           0 :         log_debug("Check if link configuration needs reloading.");
      71           0 :         if (!ctx)
      72           0 :                 return false;
      73             : 
      74           0 :         return link_config_should_reload(ctx);
      75             : }
      76             : 
      77             : const UdevBuiltin udev_builtin_net_setup_link = {
      78             :         .name = "net_setup_link",
      79             :         .cmd = builtin_net_setup_link,
      80             :         .init = builtin_net_setup_link_init,
      81             :         .exit = builtin_net_setup_link_exit,
      82             :         .validate = builtin_net_setup_link_validate,
      83             :         .help = "Configure network link",
      84             :         .run_once = false,
      85             : };