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/*-
* Copyright 2018 Aniket Pandey
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#include <sys/mman.h>
#include <sys/stat.h>
#include <atf-c.h>
#include <fcntl.h>
#include <limits.h>
#include <stdint.h>
#include <stdlib.h>
#include <unistd.h>
#include "utils.h"
static pid_t pid;
static struct pollfd fds[1];
static mode_t mode = 0777;
static int filedesc;
static char extregex[80];
static struct stat statbuff;
static const char *auclass = "cl";
static const char *path = "fileforaudit";
static const char *errpath = "dirdoesnotexist/fileforaudit";
static const char *failurereg = "fileforaudit.*return,failure";
ATF_TC_WITH_CLEANUP(munmap_success);
ATF_TC_HEAD(munmap_success, tc)
{
atf_tc_set_md_var(tc, "descr", "Tests the audit of a successful "
"munmap(2) call");
}
ATF_TC_BODY(munmap_success, tc)
{
pid = getpid();
snprintf(extregex, sizeof(extregex), "munmap.*%d.*return,success", pid);
/* Allocate sample memory, to be removed by munmap(2) */
char *addr = mmap(NULL, sizeof(char), PROT_READ , MAP_ANONYMOUS, -1, 0);
FILE *pipefd = setup(fds, auclass);
ATF_REQUIRE_EQ(0, munmap(addr, sizeof(char)));
check_audit(fds, extregex, pipefd);
}
ATF_TC_CLEANUP(munmap_success, tc)
{
cleanup();
}
ATF_TC_WITH_CLEANUP(munmap_failure);
ATF_TC_HEAD(munmap_failure, tc)
{
atf_tc_set_md_var(tc, "descr", "Tests the audit of an unsuccessful "
"munmap(2) call");
}
ATF_TC_BODY(munmap_failure, tc)
{
const char *regex = "munmap.*return,failure : Invalid argument";
FILE *pipefd = setup(fds, auclass);
ATF_REQUIRE_EQ(-1, munmap((void *)SIZE_MAX, -1));
check_audit(fds, regex, pipefd);
}
ATF_TC_CLEANUP(munmap_failure, tc)
{
cleanup();
}
ATF_TC_WITH_CLEANUP(close_success);
ATF_TC_HEAD(close_success, tc)
{
atf_tc_set_md_var(tc, "descr", "Tests the audit of a successful "
"close(2) call");
}
ATF_TC_BODY(close_success, tc)
{
/* File needs to exist to call close(2) */
ATF_REQUIRE((filedesc = open(path, O_CREAT | O_RDWR, mode)) != -1);
/* Call stat(2) to store the Inode number of 'path' */
ATF_REQUIRE_EQ(0, stat(path, &statbuff));
FILE *pipefd = setup(fds, auclass);
ATF_REQUIRE_EQ(0, close(filedesc));
/* intmax_t to support all architectures */
snprintf(extregex, sizeof(extregex), "close.*%jd.*return,succes",
(intmax_t)statbuff.st_ino);
check_audit(fds, extregex, pipefd);
}
ATF_TC_CLEANUP(close_success, tc)
{
cleanup();
}
ATF_TC_WITH_CLEANUP(close_failure);
ATF_TC_HEAD(close_failure, tc)
{
atf_tc_set_md_var(tc, "descr", "Tests the audit of an unsuccessful "
"close(2) call");
}
ATF_TC_BODY(close_failure, tc)
{
const char *regex = "close.*return,failure";
FILE *pipefd = setup(fds, auclass);
/* Failure reason: file does not exist */
ATF_REQUIRE_EQ(-1, close(-1));
check_audit(fds, regex, pipefd);
}
ATF_TC_CLEANUP(close_failure, tc)
{
cleanup();
}
ATF_TC_WITH_CLEANUP(closefrom_success);
ATF_TC_HEAD(closefrom_success, tc)
{
atf_tc_set_md_var(tc, "descr", "Tests the audit of a successful "
"closefrom(2) call");
}
ATF_TC_BODY(closefrom_success, tc)
{
const char *regex = "closefrom.*return,success";
FILE *pipefd = setup(fds, auclass);
atf_tc_expect_fail("closefrom was converted to close_range");
/* closefrom(2) returns 'void' */
closefrom(INT_MAX);
check_audit(fds, regex, pipefd);
}
ATF_TC_CLEANUP(closefrom_success, tc)
{
cleanup();
}
ATF_TC_WITH_CLEANUP(revoke_success);
ATF_TC_HEAD(revoke_success, tc)
{
atf_tc_set_md_var(tc, "descr", "Tests the audit of a successful "
"revoke(2) call");
}
ATF_TC_BODY(revoke_success, tc)
{
char *ptyname;
pid = getpid();
snprintf(extregex, sizeof(extregex), "revoke.*%d.*return,success", pid);
/* Obtain a pseudo terminal and get the path to slave device */
ATF_REQUIRE((filedesc = posix_openpt(O_RDWR | O_NOCTTY)) != -1);
ATF_REQUIRE((ptyname = ptsname(filedesc)) != NULL);
FILE *pipefd = setup(fds, auclass);
ATF_REQUIRE_EQ(0, revoke(ptyname));
check_audit(fds, extregex, pipefd);
close(filedesc);
}
ATF_TC_CLEANUP(revoke_success, tc)
{
cleanup();
}
ATF_TC_WITH_CLEANUP(revoke_failure);
ATF_TC_HEAD(revoke_failure, tc)
{
atf_tc_set_md_var(tc, "descr", "Tests the audit of an unsuccessful "
"revoke(2) call");
}
ATF_TC_BODY(revoke_failure, tc)
{
FILE *pipefd = setup(fds, auclass);
/* Failure reason: file does not exist */
ATF_REQUIRE_EQ(-1, revoke(errpath));
check_audit(fds, failurereg, pipefd);
}
ATF_TC_CLEANUP(revoke_failure, tc)
{
cleanup();
}
ATF_TP_ADD_TCS(tp)
{
ATF_TP_ADD_TC(tp, munmap_success);
ATF_TP_ADD_TC(tp, munmap_failure);
ATF_TP_ADD_TC(tp, close_success);
ATF_TP_ADD_TC(tp, close_failure);
ATF_TP_ADD_TC(tp, closefrom_success);
ATF_TP_ADD_TC(tp, revoke_success);
ATF_TP_ADD_TC(tp, revoke_failure);
return (atf_no_error());
}
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