tools/regression/priv/priv_cred.c

   1 /*-
   2  * Copyright (c) 2007 Robert M. M. Watson
   3  * All rights reserved.
   4  *
   5  * This software was developed by Robert N. M. Watson for the TrustedBSD
   6  * Project.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR, NCIRCLE NETWORK SECURITY,
  21  * INC., OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  22  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
  23  * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  24  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  25  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  26  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  27  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28  *
  29  * $FreeBSD$
  30  */
  31
  32 /*
  33  * Confirm that various UID/GID/etc-related system calls require root
  34  * privilege in the absense of any saved/real/etc variations in the
  35  * credential.  It would be nice to also check cases where those bits of the
  36  * credential are more interesting.
  37  *
  38  * XXXRW: Add support for testing more diverse real/saved scenarios.
  39  */
  40
  41 #include <sys/types.h>
  42
  43 #include <err.h>
  44 #include <errno.h>
  45 #include <stdio.h>
  46 #include <unistd.h>
  47
  48 #include "main.h"
  49
  50 int
  51 priv_cred_setup(int asroot, int injail, struct test *test)
  52 {
  53
  54         return (0);
  55 }
  56
  57 void
  58 priv_cred_setuid(int asroot, int injail, struct test *test)
  59 {
  60         int error;
  61
  62         error = setuid(UID_OTHER);
  63         if (asroot && injail)
  64                 expect("priv_setuid(asroot, injail)", error, 0, 0);
  65         if (asroot && !injail)
  66                 expect("priv_setuid(asroot, !injail)", error, 0, 0);
  67         if (!asroot && injail)
  68                 expect("priv_setuid(!asroot, injail)", error, -1, EPERM);
  69         if (!asroot && !injail)
  70                 expect("priv_setuid(!asroot, !injail)", error, -1, EPERM);
  71 }
  72
  73 void
  74 priv_cred_seteuid(int asroot, int injail, struct test *test)
  75 {
  76         int error;
  77
  78         error = seteuid(UID_OTHER);
  79         if (asroot && injail)
  80                 expect("priv_seteuid(asroot, injail)", error, 0, 0);
  81         if (asroot && !injail)
  82                 expect("priv_seteuid(asroot, !injail)", error, 0, 0);
  83         if (!asroot && injail)
  84                 expect("priv_seteuid(!asroot, injail)", error, -1, EPERM);
  85         if (!asroot && !injail)
  86                 expect("priv_seteuid(!asroot, !injail)", error, -1, EPERM);
  87 }
  88
  89 void
  90 priv_cred_setgid(int asroot, int injail, struct test *test)
  91 {
  92         int error;
  93
  94         error = setgid(GID_OTHER);
  95         if (asroot && injail)
  96                 expect("priv_setgid(asroot, injail)", error, 0, 0);
  97         if (asroot && !injail)
  98                 expect("priv_setgid(asroot, !injail)", error, 0, 0);
  99         if (!asroot && injail)
 100                 expect("priv_setgid(!asroot, injail)", error, -1, EPERM);
 101         if (!asroot && !injail)
 102                 expect("priv_setgid(!asroot, !injail)", error, -1, EPERM);
 103 }
 104
 105 void
 106 priv_cred_setegid(int asroot, int injail, struct test *test)
 107 {
 108         int error;
 109
 110         error = setegid(GID_OTHER);
 111         if (asroot && injail)
 112                 expect("priv_setegid(asroot, injail)", error, 0, 0);
 113         if (asroot && !injail)
 114                 expect("priv_setegid(asroot, !injail)", error, 0, 0);
 115         if (!asroot && injail)
 116                 expect("priv_setegd(!asroot, injail)", error, -1, EPERM);
 117         if (!asroot && !injail)
 118                 expect("priv_setegid(!asroot, !injail)", error, -1, EPERM);
 119 }
 120
 121 static const gid_t      gidset[] = {GID_WHEEL, GID_OTHER};
 122 static const int        gidset_len = sizeof(gidset) / sizeof(gid_t);
 123
 124 void
 125 priv_cred_setgroups(int asroot, int injail, struct test *test)
 126 {
 127         int error;
 128
 129         error = setgroups(gidset_len, gidset);
 130         if (asroot && injail)
 131                 expect("priv_setgroups(asroot, injail)", error, 0, 0);
 132         if (asroot && !injail)
 133                 expect("priv_setgroups(asroot, !injail)", error, 0, 0);
 134         if (!asroot && injail)
 135                 expect("priv_setgroups(!asroot, injail)", error, -1, EPERM);
 136         if (!asroot && !injail)
 137                 expect("priv_setgroups(!asroot, !injail)", error, -1, EPERM);
 138 }
 139
 140 void
 141 priv_cred_setreuid(int asroot, int injail, struct test *test)
 142 {
 143         int error;
 144
 145         error = setreuid(UID_OTHER, UID_OTHER);
 146         if (asroot && injail)
 147                 expect("priv_setreuid(asroot, injail)", error, 0, 0);
 148         if (asroot && !injail)
 149                 expect("priv_setreuid(asroot, !injail)", error, 0, 0);
 150         if (!asroot && injail)
 151                 expect("priv_setreuid(!asroot, injail)", error, -1, EPERM);
 152         if (!asroot && !injail)
 153                 expect("priv_setreuid(!asroot, !injail)", error, -1, EPERM);
 154 }
 155
 156 void
 157 priv_cred_setregid(int asroot, int injail, struct test *test)
 158 {
 159         int error;
 160
 161         error = setregid(GID_OTHER, GID_OTHER);
 162         if (asroot && injail)
 163                 expect("priv_setregid(asroot, injail)", error, 0, 0);
 164         if (asroot && !injail)
 165                 expect("priv_setregid(asroot, !injail)", error, 0, 0);
 166         if (!asroot && injail)
 167                 expect("priv_setregid(!asroot, injail)", error, -1, EPERM);
 168         if (!asroot && !injail)
 169                 expect("priv_setregid(!asroot, !injail)", error, -1, EPERM);
 170 }
 171
 172 void
 173 priv_cred_setresuid(int asroot, int injail, struct test *test)
 174 {
 175         int error;
 176
 177         error = setresuid(UID_OTHER, UID_OTHER, UID_OTHER);
 178         if (asroot && injail)
 179                 expect("priv_setresuid(asroot, injail)", error, 0, 0);
 180         if (asroot && !injail)
 181                 expect("priv_setresuid(asroot, !injail)", error, 0, 0);
 182         if (!asroot && injail)
 183                 expect("priv_setresuid(!asroot, injail)", error, -1, EPERM);
 184         if (!asroot && !injail)
 185                 expect("priv_setresuid(!asroot, !injail)", error, -1, EPERM);
 186 }
 187
 188 void
 189 priv_cred_setresgid(int asroot, int injail, struct test *test)
 190 {
 191         int error;
 192
 193         error = setresgid(GID_OTHER, GID_OTHER, GID_OTHER);
 194         if (asroot && injail)
 195                 expect("priv_setresgid(asroot, injail)", error, 0, 0);
 196         if (asroot && !injail)
 197                 expect("priv_setresgid(asroot, !injail)", error, 0, 0);
 198         if (!asroot && injail)
 199                 expect("priv_setresgid(!asroot, injail)", error, -1, EPERM);
 200         if (!asroot && !injail)
 201                 expect("priv_setresgid(!asroot, !injail)", error, -1, EPERM);
 202 }
 203
 204 void
 205 priv_cred_cleanup(int asroot, int injail, struct test *test)
 206 {
 207
 208 }