testsuite/test-blacklist.c

   1 /*
   2  * Copyright (C) 2011-2013  ProFUSION embedded systems
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (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 GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
  16  */
  17
  18 #include <errno.h>
  19 #include <inttypes.h>
  20 #include <stddef.h>
  21 #include <stdio.h>
  22 #include <stdlib.h>
  23 #include <string.h>
  24 #include <unistd.h>
  25
  26 #include <shared/util.h>
  27
  28 #include <libkmod/libkmod.h>
  29
  30 /* good luck bulding a kmod_list outside of the library... makes this blacklist
  31  * function rather pointless */
  32 #include <libkmod/libkmod-internal.h>
  33
  34 /* FIXME: hack, change name so we don't clash */
  35 #undef ERR
  36 #include "testsuite.h"
  37
  38 static int blacklist_1(const struct test *t)
  39 {
  40         struct kmod_ctx *ctx;
  41         struct kmod_list *list = NULL, *l, *filtered;
  42         struct kmod_module *mod;
  43         int err;
  44         size_t len = 0;
  45
  46         const char *names[] = { "pcspkr", "pcspkr2", "floppy", "ext4", NULL };
  47         const char **name;
  48
  49         ctx = kmod_new(NULL, NULL);
  50         if (ctx == NULL)
  51                 exit(EXIT_FAILURE);
  52
  53         for(name = names; *name; name++) {
  54                 err = kmod_module_new_from_name(ctx, *name, &mod);
  55                 if (err < 0)
  56                         goto fail_lookup;
  57                 list = kmod_list_append(list, mod);
  58         }
  59
  60         err = kmod_module_apply_filter(ctx, KMOD_FILTER_BLACKLIST, list,
  61                                                                 &filtered);
  62         if (err < 0) {
  63                 ERR("Could not filter: %s\n", strerror(-err));
  64                 goto fail;
  65         }
  66         if (filtered == NULL) {
  67                 ERR("All modules were filtered out!\n");
  68                 goto fail;
  69         }
  70
  71         kmod_list_foreach(l, filtered) {
  72                 const char *modname;
  73                 mod = kmod_module_get_module(l);
  74                 modname = kmod_module_get_name(mod);
  75                 if (streq("pcspkr", modname) || streq("floppy", modname))
  76                         goto fail;
  77                 len++;
  78                 kmod_module_unref(mod);
  79         }
  80
  81         if (len != 2)
  82                 goto fail;
  83
  84         kmod_module_unref_list(filtered);
  85         kmod_module_unref_list(list);
  86         kmod_unref(ctx);
  87
  88         return EXIT_SUCCESS;
  89
  90 fail:
  91         kmod_module_unref_list(list);
  92 fail_lookup:
  93         kmod_unref(ctx);
  94         return EXIT_FAILURE;
  95 }
  96 static const struct test sblacklist_1 = {
  97         .name = "blacklist_1",
  98         .description = "check if modules are correctly blacklisted",
  99         .func = blacklist_1,
 100         .config = {
 101                 [TC_ROOTFS] = TESTSUITE_ROOTFS "test-blacklist/",
 102         },
 103         .need_spawn = true,
 104 };
 105
 106 TESTSUITE_MAIN();