src/udev/udev-builtin.c

   1 /*
   2  * Copyright (C) 2007-2009 Kay Sievers <kay.sievers@vrfy.org>
   3  *
   4  * This program is free software: you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation, either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  */
  17
  18 #include <unistd.h>
  19 #include <stdio.h>
  20 #include <stdlib.h>
  21 #include <stddef.h>
  22 #include <string.h>
  23 #include <errno.h>
  24 #include <getopt.h>
  25
  26 #include "udev.h"
  27
  28 static const struct udev_builtin *builtins[] = {
  29         [UDEV_BUILTIN_BLKID] = &udev_builtin_blkid,
  30         [UDEV_BUILTIN_FIRMWARE] = &udev_builtin_firmware,
  31         [UDEV_BUILTIN_INPUT_ID] = &udev_builtin_input_id,
  32         [UDEV_BUILTIN_KMOD] = &udev_builtin_kmod,
  33         [UDEV_BUILTIN_PATH_ID] = &udev_builtin_path_id,
  34         [UDEV_BUILTIN_PCI_DB] = &udev_builtin_pci_db,
  35         [UDEV_BUILTIN_USB_DB] = &udev_builtin_usb_db,
  36         [UDEV_BUILTIN_USB_ID] = &udev_builtin_usb_id,
  37 #ifdef HAVE_ACL
  38         [UDEV_BUILTIN_UACCESS] = &udev_builtin_uaccess,
  39 #endif
  40 };
  41
  42 int udev_builtin_init(struct udev *udev)
  43 {
  44         unsigned int i;
  45         int err;
  46
  47         for (i = 0; i < ARRAY_SIZE(builtins); i++) {
  48                 if (builtins[i]->init) {
  49                         err = builtins[i]->init(udev);
  50                         if (err < 0)
  51                                 break;
  52                 }
  53         }
  54         return err;
  55 }
  56
  57 void udev_builtin_exit(struct udev *udev)
  58 {
  59         unsigned int i;
  60
  61         for (i = 0; i < ARRAY_SIZE(builtins); i++)
  62                 if (builtins[i]->exit)
  63                         builtins[i]->exit(udev);
  64 }
  65
  66 bool udev_builtin_validate(struct udev *udev)
  67 {
  68         unsigned int i;
  69         bool change = false;
  70
  71         for (i = 0; i < ARRAY_SIZE(builtins); i++)
  72                 if (builtins[i]->validate)
  73                         if (builtins[i]->validate(udev))
  74                                 change = true;
  75         return change;
  76 }
  77
  78 void udev_builtin_list(struct udev *udev)
  79 {
  80         unsigned int i;
  81
  82         for (i = 0; i < ARRAY_SIZE(builtins); i++)
  83                 fprintf(stderr, "  %-12s %s\n", builtins[i]->name, builtins[i]->help);
  84 }
  85
  86 const char *udev_builtin_name(enum udev_builtin_cmd cmd)
  87 {
  88         return builtins[cmd]->name;
  89 }
  90
  91 bool udev_builtin_run_once(enum udev_builtin_cmd cmd)
  92 {
  93         return builtins[cmd]->run_once;
  94 }
  95
  96 enum udev_builtin_cmd udev_builtin_lookup(const char *command)
  97 {
  98         char name[UTIL_PATH_SIZE];
  99         enum udev_builtin_cmd i;
 100         char *pos;
 101
 102         util_strscpy(name, sizeof(name), command);
 103         pos = strchr(name, ' ');
 104         if (pos)
 105                 pos[0] = '\0';
 106         for (i = 0; i < ARRAY_SIZE(builtins); i++)
 107                 if (strcmp(builtins[i]->name, name) == 0)
 108                         return i;
 109         return UDEV_BUILTIN_MAX;
 110 }
 111
 112 int udev_builtin_run(struct udev_device *dev, enum udev_builtin_cmd cmd, const char *command, bool test)
 113 {
 114         char arg[UTIL_PATH_SIZE];
 115         int argc;
 116         char *argv[128];
 117
 118         optind = 0;
 119         util_strscpy(arg, sizeof(arg), command);
 120         udev_build_argv(udev_device_get_udev(dev), arg, &argc, argv);
 121         return builtins[cmd]->cmd(dev, argc, argv, test);
 122 }
 123
 124 int udev_builtin_add_property(struct udev_device *dev, bool test, const char *key, const char *val)
 125 {
 126         struct udev_list_entry *entry;
 127
 128         entry = udev_device_add_property(dev, key, val);
 129         /* store in db, skip private keys */
 130         if (key[0] != '.')
 131                 udev_list_entry_set_num(entry, true);
 132
 133         log_debug("%s=%s\n", key, val);
 134         if (test)
 135                 printf("%s=%s\n", key, val);
 136         return 0;
 137 }