audit(4): add tests for sysctl(3) and sysarch(2)
Submitted by: aniketp MFC after: 2 weeks Sponsored by: Google, Inc. (GSoC 2018) Differential Revision: https://reviews.freebsd.org/D16116
This commit is contained in:
Alan Somers
parent
9dea3ac8c2
commit
70eaeb3622
@ -15,6 +15,7 @@ ATF_TESTS_C+= network
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ATF_TESTS_C+= inter-process
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ATF_TESTS_C+= administrative
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ATF_TESTS_C+= process-control
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ATF_TESTS_C+= miscellaneous
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SRCS.file-attribute-access+= file-attribute-access.c
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SRCS.file-attribute-access+= utils.c
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@ -42,6 +43,8 @@ SRCS.administrative+= administrative.c
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SRCS.administrative+= utils.c
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SRCS.process-control+= process-control.c
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SRCS.process-control+= utils.c
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SRCS.miscellaneous+= miscellaneous.c
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SRCS.miscellaneous+= utils.c
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TEST_METADATA+= timeout="30"
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TEST_METADATA+= required_user="root"
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232
tests/sys/audit/miscellaneous.c
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232
tests/sys/audit/miscellaneous.c
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@ -0,0 +1,232 @@
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/*-
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* Copyright (c) 2018 Aniket Pandey
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include <sys/types.h>
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#include <sys/sysctl.h>
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#include <bsm/audit.h>
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#include <machine/sysarch.h>
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#include <atf-c.h>
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#include <unistd.h>
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#include "utils.h"
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static pid_t pid;
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static char miscreg[80];
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static struct pollfd fds[1];
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static const char *auclass = "ot";
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/*
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* Success case of audit(2) is skipped for now as the behaviour is quite
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* undeterministic. It will be added when the intermittency is resolved.
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*/
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ATF_TC_WITH_CLEANUP(audit_failure);
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ATF_TC_HEAD(audit_failure, tc)
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{
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atf_tc_set_md_var(tc, "descr", "Tests the audit of an unsuccessful "
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"audit(2) call");
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}
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ATF_TC_BODY(audit_failure, tc)
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{
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pid = getpid();
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snprintf(miscreg, sizeof(miscreg), "audit.*%d.*return,failure", pid);
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FILE *pipefd = setup(fds, auclass);
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/* Failure reason: Invalid argument */
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ATF_REQUIRE_EQ(-1, audit(NULL, -1));
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check_audit(fds, miscreg, pipefd);
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}
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ATF_TC_CLEANUP(audit_failure, tc)
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{
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cleanup();
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}
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ATF_TC_WITH_CLEANUP(sysarch_success);
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ATF_TC_HEAD(sysarch_success, tc)
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{
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atf_tc_set_md_var(tc, "descr", "Tests the audit of a successful "
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"sysarch(2) call");
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}
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ATF_TC_BODY(sysarch_success, tc)
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{
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pid = getpid();
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snprintf(miscreg, sizeof(miscreg), "sysarch.*%d.*return,success", pid);
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/* Set sysnum to the syscall corresponding to the system architecture */
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#if defined(I386_GET_IOPERM) /* i386 */
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struct i386_ioperm_args i3sysarg;
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bzero(&i3sysarg, sizeof(i3sysarg));
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#elif defined(AMD64_GET_FSBASE) /* amd64 */
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register_t amd64arg;
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#elif defined(MIPS_GET_TLS) /* MIPS */
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char *mipsarg;
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#elif defined(ARM_SYNC_ICACHE) /* ARM */
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struct arm_sync_icache_args armsysarg;
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bzero(&armsysarg, sizeof(armsysarg));
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#elif defined(SPARC_UTRAP_INSTALL) /* Sparc64 */
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struct sparc_utrap_args handler = {
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.type = UT_DIVISION_BY_ZERO,
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/* We don't want to change the previous handlers */
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.new_precise = (void *)UTH_NOCHANGE,
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.new_deferred = (void *)UTH_NOCHANGE,
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.old_precise = NULL,
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.old_deferred = NULL
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};
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struct sparc_utrap_install_args sparc64arg = {
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.num = ST_DIVISION_BY_ZERO,
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.handlers = &handler
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};
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#else
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/* For PowerPC, ARM64, RISCV archs, sysarch(2) is not supported */
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atf_tc_skip("sysarch(2) is not supported for the system architecture");
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#endif
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FILE *pipefd = setup(fds, auclass);
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#if defined(I386_GET_IOPERM)
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ATF_REQUIRE_EQ(0, sysarch(I386_GET_IOPERM, &i3sysarg));
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#elif defined(AMD64_GET_FSBASE)
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ATF_REQUIRE_EQ(0, sysarch(AMD64_GET_FSBASE, &amd64arg));
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#elif defined(MIPS_GET_TLS)
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ATF_REQUIRE_EQ(0, sysarch(MIPS_GET_TLS, &mipsarg));
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#elif defined(ARM_SYNC_ICACHE)
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ATF_REQUIRE_EQ(0, sysarch(ARM_SYNC_ICACHE, &armsysarg));
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#elif defined(SPARC_UTRAP_INSTALL)
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ATF_REQUIRE_EQ(0, sysarch(SPARC_UTRAP_INSTALL, &sparc64arg));
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#endif
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check_audit(fds, miscreg, pipefd);
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}
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ATF_TC_CLEANUP(sysarch_success, tc)
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{
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cleanup();
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}
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ATF_TC_WITH_CLEANUP(sysarch_failure);
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ATF_TC_HEAD(sysarch_failure, tc)
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{
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atf_tc_set_md_var(tc, "descr", "Tests the audit of an unsuccessful "
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"sysarch(2) call for any architecture");
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}
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ATF_TC_BODY(sysarch_failure, tc)
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{
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pid = getpid();
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snprintf(miscreg, sizeof(miscreg), "sysarch.*%d.*return,failure", pid);
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FILE *pipefd = setup(fds, auclass);
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/* Failure reason: Invalid argument and Bad address */
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ATF_REQUIRE_EQ(-1, sysarch(-1, NULL));
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check_audit(fds, miscreg, pipefd);
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}
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ATF_TC_CLEANUP(sysarch_failure, tc)
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{
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cleanup();
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}
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ATF_TC_WITH_CLEANUP(sysctl_success);
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ATF_TC_HEAD(sysctl_success, tc)
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{
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atf_tc_set_md_var(tc, "descr", "Tests the audit of a successful "
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"sysctl(3) call");
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}
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ATF_TC_BODY(sysctl_success, tc)
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{
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int mib[2], maxproc;
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size_t proclen;
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/* Set mib to retrieve the maximum number of allowed processes */
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mib[0] = CTL_KERN;
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mib[1] = KERN_MAXPROC;
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proclen = sizeof(maxproc);
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pid = getpid();
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snprintf(miscreg, sizeof(miscreg), "sysctl.*%d.*return,success", pid);
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FILE *pipefd = setup(fds, auclass);
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ATF_REQUIRE_EQ(0, sysctl(mib, 2, &maxproc, &proclen, NULL, 0));
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check_audit(fds, miscreg, pipefd);
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}
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ATF_TC_CLEANUP(sysctl_success, tc)
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{
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cleanup();
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}
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ATF_TC_WITH_CLEANUP(sysctl_failure);
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ATF_TC_HEAD(sysctl_failure, tc)
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{
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atf_tc_set_md_var(tc, "descr", "Tests the audit of an unsuccessful "
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"sysctl(3) call");
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}
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ATF_TC_BODY(sysctl_failure, tc)
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{
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pid = getpid();
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snprintf(miscreg, sizeof(miscreg), "sysctl.*%d.*return,failure", pid);
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FILE *pipefd = setup(fds, auclass);
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/* Failure reason: Invalid arguments */
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ATF_REQUIRE_EQ(-1, sysctl(NULL, 0, NULL, NULL, NULL, 0));
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check_audit(fds, miscreg, pipefd);
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}
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ATF_TC_CLEANUP(sysctl_failure, tc)
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{
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cleanup();
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}
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ATF_TP_ADD_TCS(tp)
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{
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ATF_TP_ADD_TC(tp, audit_failure);
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ATF_TP_ADD_TC(tp, sysarch_success);
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ATF_TP_ADD_TC(tp, sysarch_failure);
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ATF_TP_ADD_TC(tp, sysctl_success);
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ATF_TP_ADD_TC(tp, sysctl_failure);
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return (atf_no_error());
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}
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