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audit(4): add tests for the fd audit class

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The only syscalls in this class are rmdir, unlink, unlinkat, rename, and
renameat.  Also, set is_exclusive for all audit(4) tests, because they can
start and stop auditd.

Submitted by:	aniketp
MFC after:	2 weeks
Sponsored by:	Google, Inc. (GSoC 2018)
Differential Revision:	https://reviews.freebsd.org/D15647
This commit is contained in:
Alan Somers 2018-06-01 21:24:10 +00:00
parent 0de58b3f46
commit a19dca2dfd
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=334496
2 changed files with 274 additions and 0 deletions
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4
tests/sys/audit/Makefile
View File

@ -3,11 +3,14 @@
TESTSDIR= ${TESTSBASE}/sys/audit
ATF_TESTS_C= file-create
ATF_TESTS_C+= file-delete
ATF_TESTS_C+= file-write
ATF_TESTS_C+= file-read
SRCS.file-create+= file-create.c
SRCS.file-create+= utils.c
SRCS.file-delete+= file-delete.c
SRCS.file-delete+= utils.c
SRCS.file-write+= file-write.c
SRCS.file-write+= utils.c
SRCS.file-read+= file-read.c
@ -15,6 +18,7 @@ SRCS.file-read+= utils.c
TEST_METADATA+= timeout="30"
TEST_METADATA+= required_user="root"
TEST_METADATA+= is_exclusive="true"
WARNS?= 6

270
tests/sys/audit/file-delete.c Normal file
View File

@ -0,0 +1,270 @@
/*-
* 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/stat.h>
#include <atf-c.h>
#include <fcntl.h>
#include <unistd.h>
#include "utils.h"
static struct pollfd fds[1];
static mode_t mode = 0777;
static const char *path = "fileforaudit";
static const char *errpath = "dirdoesnotexist/fileforaudit";
static const char *successreg = "fileforaudit.*return,success";
static const char *failurereg = "fileforaudit.*return,failure";
ATF_TC_WITH_CLEANUP(rmdir_success);
ATF_TC_HEAD(rmdir_success, tc)
{
atf_tc_set_md_var(tc, "descr", "Tests the audit of a successful "
"rmdir(2) call");
}
ATF_TC_BODY(rmdir_success, tc)
{
ATF_REQUIRE_EQ(0, mkdir(path, mode));
FILE *pipefd = setup(fds, "fd");
ATF_REQUIRE_EQ(0, rmdir(path));
check_audit(fds, successreg, pipefd);
}
ATF_TC_CLEANUP(rmdir_success, tc)
{
cleanup();
}
ATF_TC_WITH_CLEANUP(rmdir_failure);
ATF_TC_HEAD(rmdir_failure, tc)
{
atf_tc_set_md_var(tc, "descr", "Tests the audit of an unsuccessful "
"rmdir(2) call");
}
ATF_TC_BODY(rmdir_failure, tc)
{
FILE *pipefd = setup(fds, "fd");
/* Failure reason: directory does not exist */
ATF_REQUIRE_EQ(-1, rmdir(errpath));
check_audit(fds, failurereg, pipefd);
}
ATF_TC_CLEANUP(rmdir_failure, tc)
{
cleanup();
}
ATF_TC_WITH_CLEANUP(rename_success);
ATF_TC_HEAD(rename_success, tc)
{
atf_tc_set_md_var(tc, "descr", "Tests the audit of a successful "
"rename(2) call");
}
ATF_TC_BODY(rename_success, tc)
{
ATF_REQUIRE(open(path, O_CREAT, mode) != -1);
FILE *pipefd = setup(fds, "fd");
ATF_REQUIRE_EQ(0, rename(path, "renamed"));
check_audit(fds, successreg, pipefd);
}
ATF_TC_CLEANUP(rename_success, tc)
{
cleanup();
}
ATF_TC_WITH_CLEANUP(rename_failure);
ATF_TC_HEAD(rename_failure, tc)
{
atf_tc_set_md_var(tc, "descr", "Tests the audit of an unsuccessful "
"rename(2) call");
}
ATF_TC_BODY(rename_failure, tc)
{
FILE *pipefd = setup(fds, "fd");
/* Failure reason: file does not exist */
ATF_REQUIRE_EQ(-1, rename(path, "renamed"));
check_audit(fds, failurereg, pipefd);
}
ATF_TC_CLEANUP(rename_failure, tc)
{
cleanup();
}
ATF_TC_WITH_CLEANUP(renameat_success);
ATF_TC_HEAD(renameat_success, tc)
{
atf_tc_set_md_var(tc, "descr", "Tests the audit of a successful "
"renameat(2) call");
}
ATF_TC_BODY(renameat_success, tc)
{
ATF_REQUIRE(open(path, O_CREAT, mode) != -1);
FILE *pipefd = setup(fds, "fd");
ATF_REQUIRE_EQ(0, renameat(AT_FDCWD, path, AT_FDCWD, "renamed"));
check_audit(fds, successreg, pipefd);
}
ATF_TC_CLEANUP(renameat_success, tc)
{
cleanup();
}
ATF_TC_WITH_CLEANUP(renameat_failure);
ATF_TC_HEAD(renameat_failure, tc)
{
atf_tc_set_md_var(tc, "descr", "Tests the audit of an unsuccessful "
"renameat(2) call");
}
ATF_TC_BODY(renameat_failure, tc)
{
FILE *pipefd = setup(fds, "fd");
/* Failure reason: file does not exist */
ATF_REQUIRE_EQ(-1, renameat(AT_FDCWD, path, AT_FDCWD, "renamed"));
check_audit(fds, failurereg, pipefd);
}
ATF_TC_CLEANUP(renameat_failure, tc)
{
cleanup();
}
ATF_TC_WITH_CLEANUP(unlink_success);
ATF_TC_HEAD(unlink_success, tc)
{
atf_tc_set_md_var(tc, "descr", "Tests the audit of a successful "
"unlink(2) call");
}
ATF_TC_BODY(unlink_success, tc)
{
ATF_REQUIRE(open(path, O_CREAT, mode) != -1);
FILE *pipefd = setup(fds, "fd");
ATF_REQUIRE_EQ(0, unlink(path));
check_audit(fds, successreg, pipefd);
}
ATF_TC_CLEANUP(unlink_success, tc)
{
cleanup();
}
ATF_TC_WITH_CLEANUP(unlink_failure);
ATF_TC_HEAD(unlink_failure, tc)
{
atf_tc_set_md_var(tc, "descr", "Tests the audit of an unsuccessful "
"unlink(2) call");
}
ATF_TC_BODY(unlink_failure, tc)
{
FILE *pipefd = setup(fds, "fd");
/* Failure reason: file does not exist */
ATF_REQUIRE_EQ(-1, unlink(errpath));
check_audit(fds, failurereg, pipefd);
}
ATF_TC_CLEANUP(unlink_failure, tc)
{
cleanup();
}
ATF_TC_WITH_CLEANUP(unlinkat_success);
ATF_TC_HEAD(unlinkat_success, tc)
{
atf_tc_set_md_var(tc, "descr", "Tests the audit of a successful "
"unlinkat(2) call");
}
ATF_TC_BODY(unlinkat_success, tc)
{
ATF_REQUIRE_EQ(0, mkdir(path, mode));
FILE *pipefd = setup(fds, "fd");
ATF_REQUIRE_EQ(0, unlinkat(AT_FDCWD, path, AT_REMOVEDIR));
check_audit(fds, successreg, pipefd);
}
ATF_TC_CLEANUP(unlinkat_success, tc)
{
cleanup();
}
ATF_TC_WITH_CLEANUP(unlinkat_failure);
ATF_TC_HEAD(unlinkat_failure, tc)
{
atf_tc_set_md_var(tc, "descr", "Tests the audit of an unsuccessful "
"unlinkat(2) call");
}
ATF_TC_BODY(unlinkat_failure, tc)
{
FILE *pipefd = setup(fds, "fd");
/* Failure reason: directory does not exist */
ATF_REQUIRE_EQ(-1, unlinkat(AT_FDCWD, errpath, AT_REMOVEDIR));
check_audit(fds, failurereg, pipefd);
}
ATF_TC_CLEANUP(unlinkat_failure, tc)
{
cleanup();
}
ATF_TP_ADD_TCS(tp)
{
ATF_TP_ADD_TC(tp, rmdir_success);
ATF_TP_ADD_TC(tp, rmdir_failure);
ATF_TP_ADD_TC(tp, rename_success);
ATF_TP_ADD_TC(tp, rename_failure);
ATF_TP_ADD_TC(tp, renameat_success);
ATF_TP_ADD_TC(tp, renameat_failure);
ATF_TP_ADD_TC(tp, unlink_success);
ATF_TP_ADD_TC(tp, unlink_failure);
ATF_TP_ADD_TC(tp, unlinkat_success);
ATF_TP_ADD_TC(tp, unlinkat_failure);
return (atf_no_error());
}