1085 lines
22 KiB
C
1085 lines
22 KiB
C
/* Copyright (C) 2004 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Jakub Jelinek <jaku@redhat.com>, 2004.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <pthread.h>
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#include <pwd.h>
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#include <grp.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <sys/wait.h>
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#include <unistd.h>
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static pthread_barrier_t b3, b4;
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static uid_t prev_ruid, prev_euid, prev_suid, nobody_uid;
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static gid_t prev_rgid, prev_egid, prev_sgid, nobody_gid;
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enum ACTION { PREPARE, SET, CHECK_BEFORE, CHECK_AFTER };
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#define TESTNO(arg) ((long int) (arg) & 0xff)
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#define THREADNO(arg) ((long int) (arg) >> 8)
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static void
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check_prev_uid (int tno)
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{
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uid_t ruid, euid, suid;
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if (getresuid (&ruid, &euid, &suid) < 0)
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{
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printf ("getresuid failed: %d %m\n", tno);
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exit (1);
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}
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if (ruid != prev_ruid || euid != prev_euid || suid != prev_suid)
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{
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printf ("uids before in %d (%d %d %d) != (%d %d %d)\n", tno,
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ruid, euid, suid, prev_ruid, prev_euid, prev_suid);
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exit (1);
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}
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}
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static void
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check_prev_gid (int tno)
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{
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gid_t rgid, egid, sgid;
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if (getresgid (&rgid, &egid, &sgid) < 0)
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{
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printf ("getresgid failed: %d %m\n", tno);
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exit (1);
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}
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if (rgid != prev_rgid || egid != prev_egid || sgid != prev_sgid)
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{
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printf ("gids before in %d (%d %d %d) != (%d %d %d)\n", tno,
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rgid, egid, sgid, prev_rgid, prev_egid, prev_sgid);
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exit (1);
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}
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}
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static void
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test_setuid1 (enum ACTION action, int tno)
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{
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if (action == PREPARE)
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return;
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if (action != CHECK_AFTER)
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check_prev_uid (tno);
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if (action == SET && setuid (nobody_uid) < 0)
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{
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printf ("setuid failed: %m\n");
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exit (1);
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}
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if (action != CHECK_BEFORE)
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{
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uid_t ruid, euid, suid;
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if (getresuid (&ruid, &euid, &suid) < 0)
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{
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printf ("getresuid failed: %d %m\n", tno);
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exit (1);
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}
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if (ruid != nobody_uid || euid != nobody_uid || suid != nobody_uid)
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{
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printf ("after setuid %d (%d %d %d) != (%d %d %d)\n", tno,
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ruid, euid, suid, nobody_uid, nobody_uid, nobody_uid);
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exit (1);
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}
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}
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}
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static void
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test_setuid2 (enum ACTION action, int tno)
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{
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if (action == PREPARE)
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{
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if (setresuid (nobody_uid, nobody_uid, -1) < 0)
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{
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printf ("setresuid failed: %m\n");
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exit (1);
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}
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prev_ruid = nobody_uid;
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prev_euid = nobody_uid;
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return;
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}
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if (action != CHECK_AFTER)
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check_prev_uid (tno);
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if (action == SET && setuid (prev_suid) < 0)
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{
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printf ("setuid failed: %m\n");
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exit (1);
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}
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if (action != CHECK_BEFORE)
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{
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uid_t ruid, euid, suid;
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if (getresuid (&ruid, &euid, &suid) < 0)
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{
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printf ("getresuid failed: %d %m\n", tno);
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exit (1);
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}
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if (ruid != nobody_uid || euid != prev_suid || suid != prev_suid)
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{
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printf ("after setuid %d (%d %d %d) != (%d %d %d)\n", tno,
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ruid, euid, suid, nobody_uid, prev_suid, prev_suid);
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exit (1);
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}
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}
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}
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static void
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test_seteuid1 (enum ACTION action, int tno)
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{
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if (action == PREPARE)
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return;
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if (action != CHECK_AFTER)
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check_prev_uid (tno);
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if (action == SET && seteuid (nobody_uid) < 0)
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{
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printf ("seteuid failed: %m\n");
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exit (1);
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}
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if (action != CHECK_BEFORE)
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{
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uid_t ruid, euid, suid;
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if (getresuid (&ruid, &euid, &suid) < 0)
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{
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printf ("getresuid failed: %d %m\n", tno);
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exit (1);
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}
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if (ruid != prev_ruid || euid != nobody_uid || suid != prev_suid)
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{
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printf ("after seteuid %d (%d %d %d) != (%d %d %d)\n", tno,
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ruid, euid, suid, prev_ruid, nobody_uid, prev_suid);
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exit (1);
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}
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}
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}
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static void
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test_seteuid2 (enum ACTION action, int tno)
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{
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if (action == PREPARE)
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{
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if (setresuid (nobody_uid, nobody_uid, -1) < 0)
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{
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printf ("setresuid failed: %m\n");
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exit (1);
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}
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prev_ruid = nobody_uid;
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prev_euid = nobody_uid;
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nobody_uid = prev_suid;
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return;
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}
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test_seteuid1 (action, tno);
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}
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static void
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test_setreuid1 (enum ACTION action, int tno)
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{
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if (action == PREPARE)
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return;
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if (action != CHECK_AFTER)
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check_prev_uid (tno);
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if (action == SET && setreuid (-1, nobody_uid) < 0)
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{
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printf ("setreuid failed: %m\n");
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exit (1);
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}
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if (action != CHECK_BEFORE)
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{
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uid_t ruid, euid, suid, esuid;
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if (getresuid (&ruid, &euid, &suid) < 0)
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{
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printf ("getresuid failed: %d %m\n", tno);
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exit (1);
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}
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if (prev_ruid != nobody_uid)
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esuid = nobody_uid;
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else
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esuid = prev_suid;
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if (ruid != prev_ruid || euid != nobody_uid || suid != esuid)
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{
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printf ("after setreuid %d (%d %d %d) != (%d %d %d)\n", tno,
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ruid, euid, suid, prev_ruid, nobody_uid, esuid);
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exit (1);
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}
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}
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}
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static void
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test_setreuid2 (enum ACTION action, int tno)
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{
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if (action == PREPARE)
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return;
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if (action != CHECK_AFTER)
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check_prev_uid (tno);
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if (action == SET && setreuid (nobody_uid, -1) < 0)
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{
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printf ("setreuid failed: %m\n");
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exit (1);
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}
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if (action != CHECK_BEFORE)
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{
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uid_t ruid, euid, suid;
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if (getresuid (&ruid, &euid, &suid) < 0)
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{
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printf ("getresuid failed: %d %m\n", tno);
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exit (1);
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}
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if (ruid != nobody_uid || euid != prev_euid || suid != prev_euid)
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{
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printf ("after setreuid %d (%d %d %d) != (%d %d %d)\n", tno,
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ruid, euid, suid, nobody_uid, prev_euid, prev_euid);
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exit (1);
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}
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}
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}
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static void
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test_setreuid3 (enum ACTION action, int tno)
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{
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if (action == PREPARE)
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return;
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if (action != CHECK_AFTER)
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check_prev_uid (tno);
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if (action == SET && setreuid (nobody_uid, nobody_uid) < 0)
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{
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printf ("setreuid failed: %m\n");
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exit (1);
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}
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if (action != CHECK_BEFORE)
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{
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uid_t ruid, euid, suid;
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if (getresuid (&ruid, &euid, &suid) < 0)
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{
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printf ("getresuid failed: %d %m\n", tno);
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exit (1);
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}
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if (ruid != nobody_uid || euid != nobody_uid || suid != nobody_uid)
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{
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printf ("after setreuid %d (%d %d %d) != (%d %d %d)\n", tno,
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ruid, euid, suid, nobody_uid, nobody_uid, nobody_uid);
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exit (1);
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}
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}
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}
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static void
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test_setreuid4 (enum ACTION action, int tno)
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{
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if (action == PREPARE)
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{
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if (setresuid (nobody_uid, nobody_uid, -1) < 0)
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{
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printf ("setresuid failed: %m\n");
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exit (1);
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}
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prev_ruid = nobody_uid;
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prev_euid = nobody_uid;
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nobody_uid = prev_suid;
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return;
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}
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test_setreuid1 (action, tno);
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}
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static void
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test_setresuid1 (enum ACTION action, int tno)
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{
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if (action == PREPARE)
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return;
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if (action != CHECK_AFTER)
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check_prev_uid (tno);
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if (action == SET && setresuid (-1, nobody_uid, -1) < 0)
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{
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printf ("setresuid failed: %m\n");
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exit (1);
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}
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if (action != CHECK_BEFORE)
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{
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uid_t ruid, euid, suid;
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if (getresuid (&ruid, &euid, &suid) < 0)
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{
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printf ("getresuid failed: %d %m\n", tno);
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exit (1);
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}
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if (ruid != prev_ruid || euid != nobody_uid || suid != prev_suid)
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{
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printf ("after setresuid %d (%d %d %d) != (%d %d %d)\n", tno,
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ruid, euid, suid, prev_ruid, nobody_uid, prev_suid);
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exit (1);
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}
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}
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}
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static void
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test_setresuid2 (enum ACTION action, int tno)
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{
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if (action == PREPARE)
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return;
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if (action != CHECK_AFTER)
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check_prev_uid (tno);
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if (action == SET && setresuid (prev_euid, nobody_uid, nobody_uid) < 0)
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{
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printf ("setresuid failed: %m\n");
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exit (1);
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}
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if (action != CHECK_BEFORE)
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{
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uid_t ruid, euid, suid;
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if (getresuid (&ruid, &euid, &suid) < 0)
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{
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printf ("getresuid failed: %d %m\n", tno);
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exit (1);
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}
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if (ruid != prev_euid || euid != nobody_uid || suid != nobody_uid)
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{
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printf ("after setresuid %d (%d %d %d) != (%d %d %d)\n", tno,
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ruid, euid, suid, prev_euid, nobody_uid, nobody_uid);
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exit (1);
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}
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}
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}
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static void
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test_setresuid3 (enum ACTION action, int tno)
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{
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if (action == PREPARE)
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return;
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if (action != CHECK_AFTER)
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check_prev_uid (tno);
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if (action == SET && setresuid (nobody_uid, nobody_uid, nobody_uid) < 0)
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{
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printf ("setresuid failed: %m\n");
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exit (1);
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}
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if (action != CHECK_BEFORE)
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{
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uid_t ruid, euid, suid;
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if (getresuid (&ruid, &euid, &suid) < 0)
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{
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printf ("getresuid failed: %d %m\n", tno);
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exit (1);
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}
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if (ruid != nobody_uid || euid != nobody_uid || suid != nobody_uid)
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{
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printf ("after setresuid %d (%d %d %d) != (%d %d %d)\n", tno,
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ruid, euid, suid, nobody_uid, nobody_uid, nobody_uid);
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exit (1);
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}
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}
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}
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static void
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test_setresuid4 (enum ACTION action, int tno)
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{
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if (action == PREPARE)
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{
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if (setresuid (nobody_uid, nobody_uid, -1) < 0)
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{
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printf ("setresuid failed: %m\n");
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exit (1);
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}
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prev_ruid = nobody_uid;
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prev_euid = nobody_uid;
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nobody_uid = prev_suid;
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return;
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}
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test_setresuid1 (action, tno);
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}
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|
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static void
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test_setgid1 (enum ACTION action, int tno)
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{
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if (action == PREPARE)
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return;
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if (action != CHECK_AFTER)
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check_prev_gid (tno);
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if (action == SET && setgid (nobody_gid) < 0)
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{
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printf ("setgid failed: %m\n");
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exit (1);
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}
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|
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if (action != CHECK_BEFORE)
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{
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gid_t rgid, egid, sgid;
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if (getresgid (&rgid, &egid, &sgid) < 0)
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{
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printf ("getresgid failed: %d %m\n", tno);
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exit (1);
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}
|
|
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if (rgid != nobody_gid || egid != nobody_gid || sgid != nobody_gid)
|
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{
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printf ("after setgid %d (%d %d %d) != (%d %d %d)\n", tno,
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rgid, egid, sgid, nobody_gid, nobody_gid, nobody_gid);
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exit (1);
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}
|
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}
|
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}
|
|
|
|
|
|
static void
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test_setgid2 (enum ACTION action, int tno)
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|
{
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if (action == PREPARE)
|
|
{
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if (setresgid (nobody_gid, nobody_gid, -1) < 0)
|
|
{
|
|
printf ("setresgid failed: %m\n");
|
|
exit (1);
|
|
}
|
|
|
|
prev_rgid = nobody_gid;
|
|
prev_egid = nobody_gid;
|
|
|
|
if (setresuid (nobody_uid, nobody_uid, -1) < 0)
|
|
{
|
|
printf ("setresuid failed: %m\n");
|
|
exit (1);
|
|
}
|
|
|
|
prev_ruid = nobody_uid;
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prev_euid = nobody_uid;
|
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return;
|
|
}
|
|
|
|
if (action != CHECK_AFTER)
|
|
check_prev_gid (tno);
|
|
|
|
if (action == SET && setgid (prev_sgid) < 0)
|
|
{
|
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printf ("setgid failed: %m\n");
|
|
exit (1);
|
|
}
|
|
|
|
if (action != CHECK_BEFORE)
|
|
{
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|
gid_t rgid, egid, sgid;
|
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if (getresgid (&rgid, &egid, &sgid) < 0)
|
|
{
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|
printf ("getresgid failed: %d %m\n", tno);
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|
exit (1);
|
|
}
|
|
|
|
if (rgid != nobody_gid || egid != prev_sgid || sgid != prev_sgid)
|
|
{
|
|
printf ("after setgid %d (%d %d %d) != (%d %d %d)\n", tno,
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|
rgid, egid, sgid, nobody_gid, prev_sgid, prev_sgid);
|
|
exit (1);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
static void
|
|
test_setegid1 (enum ACTION action, int tno)
|
|
{
|
|
if (action == PREPARE)
|
|
return;
|
|
|
|
if (action != CHECK_AFTER)
|
|
check_prev_gid (tno);
|
|
|
|
if (action == SET && setegid (nobody_gid) < 0)
|
|
{
|
|
printf ("setegid failed: %m\n");
|
|
exit (1);
|
|
}
|
|
|
|
if (action != CHECK_BEFORE)
|
|
{
|
|
gid_t rgid, egid, sgid;
|
|
if (getresgid (&rgid, &egid, &sgid) < 0)
|
|
{
|
|
printf ("getresgid failed: %d %m\n", tno);
|
|
exit (1);
|
|
}
|
|
|
|
if (rgid != prev_rgid || egid != nobody_gid || sgid != prev_sgid)
|
|
{
|
|
printf ("after setegid %d (%d %d %d) != (%d %d %d)\n", tno,
|
|
rgid, egid, sgid, prev_rgid, nobody_gid, prev_sgid);
|
|
exit (1);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
static void
|
|
test_setegid2 (enum ACTION action, int tno)
|
|
{
|
|
if (action == PREPARE)
|
|
{
|
|
if (setresgid (nobody_gid, nobody_gid, -1) < 0)
|
|
{
|
|
printf ("setresgid failed: %m\n");
|
|
exit (1);
|
|
}
|
|
|
|
prev_rgid = nobody_gid;
|
|
prev_egid = nobody_gid;
|
|
nobody_gid = prev_sgid;
|
|
return;
|
|
}
|
|
|
|
test_setegid1 (action, tno);
|
|
}
|
|
|
|
|
|
static void
|
|
test_setregid1 (enum ACTION action, int tno)
|
|
{
|
|
if (action == PREPARE)
|
|
return;
|
|
|
|
if (action != CHECK_AFTER)
|
|
check_prev_gid (tno);
|
|
|
|
if (action == SET && setregid (-1, nobody_gid) < 0)
|
|
{
|
|
printf ("setregid failed: %m\n");
|
|
exit (1);
|
|
}
|
|
|
|
if (action != CHECK_BEFORE)
|
|
{
|
|
gid_t rgid, egid, sgid, esgid;
|
|
if (getresgid (&rgid, &egid, &sgid) < 0)
|
|
{
|
|
printf ("getresgid failed: %d %m\n", tno);
|
|
exit (1);
|
|
}
|
|
|
|
if (prev_rgid != nobody_gid)
|
|
esgid = nobody_gid;
|
|
else
|
|
esgid = prev_sgid;
|
|
|
|
if (rgid != prev_rgid || egid != nobody_gid || sgid != esgid)
|
|
{
|
|
printf ("after setregid %d (%d %d %d) != (%d %d %d)\n", tno,
|
|
rgid, egid, sgid, prev_rgid, nobody_gid, esgid);
|
|
exit (1);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
static void
|
|
test_setregid2 (enum ACTION action, int tno)
|
|
{
|
|
if (action == PREPARE)
|
|
return;
|
|
|
|
if (action != CHECK_AFTER)
|
|
check_prev_gid (tno);
|
|
|
|
if (action == SET && setregid (nobody_gid, -1) < 0)
|
|
{
|
|
printf ("setregid failed: %m\n");
|
|
exit (1);
|
|
}
|
|
|
|
if (action != CHECK_BEFORE)
|
|
{
|
|
gid_t rgid, egid, sgid;
|
|
if (getresgid (&rgid, &egid, &sgid) < 0)
|
|
{
|
|
printf ("getresgid failed: %d %m\n", tno);
|
|
exit (1);
|
|
}
|
|
|
|
if (rgid != nobody_gid || egid != prev_egid || sgid != prev_egid)
|
|
{
|
|
printf ("after setregid %d (%d %d %d) != (%d %d %d)\n", tno,
|
|
rgid, egid, sgid, nobody_gid, prev_egid, prev_egid);
|
|
exit (1);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
static void
|
|
test_setregid3 (enum ACTION action, int tno)
|
|
{
|
|
if (action == PREPARE)
|
|
return;
|
|
|
|
if (action != CHECK_AFTER)
|
|
check_prev_gid (tno);
|
|
|
|
if (action == SET && setregid (nobody_gid, nobody_gid) < 0)
|
|
{
|
|
printf ("setregid failed: %m\n");
|
|
exit (1);
|
|
}
|
|
|
|
if (action != CHECK_BEFORE)
|
|
{
|
|
gid_t rgid, egid, sgid;
|
|
if (getresgid (&rgid, &egid, &sgid) < 0)
|
|
{
|
|
printf ("getresgid failed: %d %m\n", tno);
|
|
exit (1);
|
|
}
|
|
|
|
if (rgid != nobody_gid || egid != nobody_gid || sgid != nobody_gid)
|
|
{
|
|
printf ("after setregid %d (%d %d %d) != (%d %d %d)\n", tno,
|
|
rgid, egid, sgid, nobody_gid, nobody_gid, nobody_gid);
|
|
exit (1);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
static void
|
|
test_setregid4 (enum ACTION action, int tno)
|
|
{
|
|
if (action == PREPARE)
|
|
{
|
|
if (setresgid (nobody_gid, nobody_gid, -1) < 0)
|
|
{
|
|
printf ("setresgid failed: %m\n");
|
|
exit (1);
|
|
}
|
|
|
|
prev_rgid = nobody_gid;
|
|
prev_egid = nobody_gid;
|
|
nobody_gid = prev_sgid;
|
|
return;
|
|
}
|
|
|
|
test_setregid1 (action, tno);
|
|
}
|
|
|
|
|
|
static void
|
|
test_setresgid1 (enum ACTION action, int tno)
|
|
{
|
|
if (action == PREPARE)
|
|
return;
|
|
|
|
if (action != CHECK_AFTER)
|
|
check_prev_gid (tno);
|
|
|
|
if (action == SET && setresgid (-1, nobody_gid, -1) < 0)
|
|
{
|
|
printf ("setresgid failed: %m\n");
|
|
exit (1);
|
|
}
|
|
|
|
if (action != CHECK_BEFORE)
|
|
{
|
|
gid_t rgid, egid, sgid;
|
|
if (getresgid (&rgid, &egid, &sgid) < 0)
|
|
{
|
|
printf ("getresgid failed: %d %m\n", tno);
|
|
exit (1);
|
|
}
|
|
|
|
if (rgid != prev_rgid || egid != nobody_gid || sgid != prev_sgid)
|
|
{
|
|
printf ("after setresgid %d (%d %d %d) != (%d %d %d)\n", tno,
|
|
rgid, egid, sgid, prev_rgid, nobody_gid, prev_sgid);
|
|
exit (1);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
static void
|
|
test_setresgid2 (enum ACTION action, int tno)
|
|
{
|
|
if (action == PREPARE)
|
|
return;
|
|
|
|
if (action != CHECK_AFTER)
|
|
check_prev_gid (tno);
|
|
|
|
if (action == SET && setresgid (prev_egid, nobody_gid, nobody_gid) < 0)
|
|
{
|
|
printf ("setresgid failed: %m\n");
|
|
exit (1);
|
|
}
|
|
|
|
if (action != CHECK_BEFORE)
|
|
{
|
|
gid_t rgid, egid, sgid;
|
|
if (getresgid (&rgid, &egid, &sgid) < 0)
|
|
{
|
|
printf ("getresgid failed: %d %m\n", tno);
|
|
exit (1);
|
|
}
|
|
|
|
if (rgid != prev_egid || egid != nobody_gid || sgid != nobody_gid)
|
|
{
|
|
printf ("after setresgid %d (%d %d %d) != (%d %d %d)\n", tno,
|
|
rgid, egid, sgid, prev_egid, nobody_gid, nobody_gid);
|
|
exit (1);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
static void
|
|
test_setresgid3 (enum ACTION action, int tno)
|
|
{
|
|
if (action == PREPARE)
|
|
return;
|
|
|
|
if (action != CHECK_AFTER)
|
|
check_prev_gid (tno);
|
|
|
|
if (action == SET && setresgid (nobody_gid, nobody_gid, nobody_gid) < 0)
|
|
{
|
|
printf ("setresgid failed: %m\n");
|
|
exit (1);
|
|
}
|
|
|
|
if (action != CHECK_BEFORE)
|
|
{
|
|
gid_t rgid, egid, sgid;
|
|
if (getresgid (&rgid, &egid, &sgid) < 0)
|
|
{
|
|
printf ("getresgid failed: %d %m\n", tno);
|
|
exit (1);
|
|
}
|
|
|
|
if (rgid != nobody_gid || egid != nobody_gid || sgid != nobody_gid)
|
|
{
|
|
printf ("after setresgid %d (%d %d %d) != (%d %d %d)\n", tno,
|
|
rgid, egid, sgid, nobody_gid, nobody_gid, nobody_gid);
|
|
exit (1);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
static void
|
|
test_setresgid4 (enum ACTION action, int tno)
|
|
{
|
|
if (action == PREPARE)
|
|
{
|
|
if (setresgid (nobody_gid, nobody_gid, -1) < 0)
|
|
{
|
|
printf ("setresgid failed: %m\n");
|
|
exit (1);
|
|
}
|
|
|
|
prev_rgid = nobody_gid;
|
|
prev_egid = nobody_gid;
|
|
nobody_gid = prev_sgid;
|
|
return;
|
|
}
|
|
|
|
test_setresgid1 (action, tno);
|
|
}
|
|
|
|
|
|
static struct setuid_test
|
|
{
|
|
const char *name;
|
|
void (*test) (enum ACTION, int tno);
|
|
} setuid_tests[] =
|
|
{
|
|
{ "setuid1", test_setuid1 },
|
|
{ "setuid2", test_setuid2 },
|
|
{ "seteuid1", test_seteuid1 },
|
|
{ "seteuid2", test_seteuid2 },
|
|
{ "setreuid1", test_setreuid1 },
|
|
{ "setreuid2", test_setreuid2 },
|
|
{ "setreuid3", test_setreuid3 },
|
|
{ "setreuid4", test_setreuid4 },
|
|
{ "setresuid1", test_setresuid1 },
|
|
{ "setresuid2", test_setresuid2 },
|
|
{ "setresuid3", test_setresuid3 },
|
|
{ "setresuid4", test_setresuid4 },
|
|
{ "setgid1", test_setgid1 },
|
|
{ "setgid2", test_setgid2 },
|
|
{ "setegid1", test_setegid1 },
|
|
{ "setegid2", test_setegid2 },
|
|
{ "setregid1", test_setregid1 },
|
|
{ "setregid2", test_setregid2 },
|
|
{ "setregid3", test_setregid3 },
|
|
{ "setregid4", test_setregid4 },
|
|
{ "setresgid1", test_setresgid1 },
|
|
{ "setresgid2", test_setresgid2 },
|
|
{ "setresgid3", test_setresgid3 },
|
|
{ "setresgid4", test_setresgid4 }
|
|
};
|
|
|
|
|
|
static void *
|
|
tf2 (void *arg)
|
|
{
|
|
int e = pthread_barrier_wait (&b4);
|
|
if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
|
|
{
|
|
puts ("barrier_wait failed");
|
|
exit (1);
|
|
}
|
|
|
|
setuid_tests[TESTNO (arg)].test (CHECK_AFTER, THREADNO (arg));
|
|
return NULL;
|
|
}
|
|
|
|
|
|
static void *
|
|
tf (void *arg)
|
|
{
|
|
setuid_tests[TESTNO (arg)].test (CHECK_BEFORE, THREADNO (arg));
|
|
|
|
int e = pthread_barrier_wait (&b3);
|
|
if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
|
|
{
|
|
puts ("barrier_wait failed");
|
|
exit (1);
|
|
}
|
|
|
|
return tf2 (arg);
|
|
}
|
|
|
|
|
|
static int
|
|
do_one_test (long int testno)
|
|
{
|
|
printf ("%s test\n", setuid_tests[testno].name);
|
|
|
|
pid_t pid = fork ();
|
|
if (pid == 0)
|
|
{
|
|
setuid_tests[testno].test (PREPARE, 0);
|
|
setuid_tests[testno].test (SET, 0);
|
|
exit (0);
|
|
}
|
|
|
|
if (pid < 0)
|
|
{
|
|
printf ("fork failed: %m\n");
|
|
exit (1);
|
|
}
|
|
|
|
int status;
|
|
if (waitpid (pid, &status, 0) < 0)
|
|
{
|
|
printf ("waitpid failed: %m\n");
|
|
exit (1);
|
|
}
|
|
|
|
if (!WIFEXITED (status))
|
|
{
|
|
puts ("child did not exit");
|
|
exit (1);
|
|
}
|
|
|
|
if (WEXITSTATUS (status))
|
|
{
|
|
printf ("skipping %s test\n", setuid_tests[testno].name);
|
|
return 0;
|
|
}
|
|
|
|
pid = fork ();
|
|
if (pid == 0)
|
|
{
|
|
setuid_tests[testno].test (PREPARE, 0);
|
|
|
|
pthread_t th;
|
|
int e = pthread_create (&th, NULL, tf, (void *) (testno | 0x100L));
|
|
if (e != 0)
|
|
{
|
|
printf ("create failed: %m\n");
|
|
exit (1);
|
|
}
|
|
|
|
pthread_t th2;
|
|
e = pthread_create (&th2, NULL, tf, (void *) (testno | 0x200L));
|
|
if (e != 0)
|
|
{
|
|
printf ("create failed: %m\n");
|
|
exit (1);
|
|
}
|
|
|
|
e = pthread_barrier_wait (&b3);
|
|
if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
|
|
{
|
|
puts ("barrier_wait failed");
|
|
exit (1);
|
|
}
|
|
|
|
setuid_tests[testno].test (SET, 0);
|
|
|
|
pthread_t th3;
|
|
e = pthread_create (&th3, NULL, tf2, (void *) (testno | 0x300L));
|
|
if (e != 0)
|
|
{
|
|
printf ("create failed: %m\n");
|
|
exit (1);
|
|
}
|
|
|
|
e = pthread_barrier_wait (&b4);
|
|
if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
|
|
{
|
|
puts ("barrier_wait failed");
|
|
exit (1);
|
|
}
|
|
|
|
exit (0);
|
|
}
|
|
|
|
if (pid < 0)
|
|
{
|
|
printf ("fork failed: %m\n");
|
|
exit (1);
|
|
}
|
|
|
|
if (waitpid (pid, &status, 0) < 0)
|
|
{
|
|
printf ("waitpid failed: %m\n");
|
|
exit (1);
|
|
}
|
|
|
|
if (!WIFEXITED (status))
|
|
{
|
|
puts ("second child did not exit");
|
|
exit (1);
|
|
}
|
|
|
|
if (WEXITSTATUS (status))
|
|
exit (WEXITSTATUS (status));
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int
|
|
do_test (void)
|
|
{
|
|
struct passwd *pwd = getpwnam ("nobody");
|
|
if (pwd == NULL)
|
|
{
|
|
puts ("User nobody doesn't exist");
|
|
return 0;
|
|
}
|
|
nobody_uid = pwd->pw_uid;
|
|
nobody_gid = pwd->pw_gid;
|
|
|
|
if (getresuid (&prev_ruid, &prev_euid, &prev_suid) < 0)
|
|
{
|
|
printf ("getresuid failed: %m\n");
|
|
exit (1);
|
|
}
|
|
|
|
if (getresgid (&prev_rgid, &prev_egid, &prev_sgid) < 0)
|
|
{
|
|
printf ("getresgid failed: %m\n");
|
|
exit (1);
|
|
}
|
|
|
|
if (prev_ruid == nobody_uid || prev_euid == nobody_uid
|
|
|| prev_suid == nobody_uid)
|
|
{
|
|
puts ("already running as user nobody, skipping tests");
|
|
exit (0);
|
|
}
|
|
|
|
if (prev_rgid == nobody_gid || prev_egid == nobody_gid
|
|
|| prev_sgid == nobody_gid)
|
|
{
|
|
puts ("already running as group nobody, skipping tests");
|
|
exit (0);
|
|
}
|
|
|
|
if (pthread_barrier_init (&b3, NULL, 3) != 0)
|
|
{
|
|
puts ("barrier_init failed");
|
|
exit (1);
|
|
}
|
|
|
|
if (pthread_barrier_init (&b4, NULL, 4) != 0)
|
|
{
|
|
puts ("barrier_init failed");
|
|
exit (1);
|
|
}
|
|
|
|
for (unsigned long int testno = 0;
|
|
testno < sizeof (setuid_tests) / sizeof (setuid_tests[0]);
|
|
++testno)
|
|
do_one_test (testno);
|
|
return 0;
|
|
}
|
|
|
|
#define TEST_FUNCTION do_test ()
|
|
#include "../test-skeleton.c"
|