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/*-
* Copyright (c) 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/types.h>
#include <sys/sysctl.h>
#include <bsm/audit.h>
#include <machine/sysarch.h>
#include <atf-c.h>
#include <unistd.h>
#include "utils.h"
static pid_t pid;
static char miscreg[80];
static struct pollfd fds[1];
static const char *auclass = "ot";
/*
* Success case of audit(2) is skipped for now as the behaviour is quite
* undeterministic. It will be added when the intermittency is resolved.
*/
ATF_TC_WITH_CLEANUP(audit_failure);
ATF_TC_HEAD(audit_failure, tc)
{
atf_tc_set_md_var(tc, "descr", "Tests the audit of an unsuccessful "
"audit(2) call");
}
ATF_TC_BODY(audit_failure, tc)
{
pid = getpid();
snprintf(miscreg, sizeof(miscreg), "audit.*%d.*return,failure", pid);
FILE *pipefd = setup(fds, auclass);
/* Failure reason: Invalid argument */
ATF_REQUIRE_EQ(-1, audit(NULL, -1));
check_audit(fds, miscreg, pipefd);
}
ATF_TC_CLEANUP(audit_failure, tc)
{
cleanup();
}
ATF_TC_WITH_CLEANUP(sysarch_success);
ATF_TC_HEAD(sysarch_success, tc)
{
atf_tc_set_md_var(tc, "descr", "Tests the audit of a successful "
"sysarch(2) call");
}
ATF_TC_BODY(sysarch_success, tc)
{
pid = getpid();
snprintf(miscreg, sizeof(miscreg), "sysarch.*%d.*return,success", pid);
/* Set sysnum to the syscall corresponding to the system architecture */
#if defined(I386_GET_IOPERM) /* i386 */
struct i386_ioperm_args i3sysarg;
bzero(&i3sysarg, sizeof(i3sysarg));
#elif defined(AMD64_GET_FSBASE) /* amd64 */
register_t amd64arg;
#elif defined(MIPS_GET_TLS) /* MIPS */
char *mipsarg;
#elif defined(ARM_SYNC_ICACHE) /* ARM */
struct arm_sync_icache_args armsysarg;
bzero(&armsysarg, sizeof(armsysarg));
#elif defined(SPARC_UTRAP_INSTALL) /* Sparc64 */
struct sparc_utrap_args handler = {
.type = UT_DIVISION_BY_ZERO,
/* We don't want to change the previous handlers */
.new_precise = (void *)UTH_NOCHANGE,
.new_deferred = (void *)UTH_NOCHANGE,
.old_precise = NULL,
.old_deferred = NULL
};
struct sparc_utrap_install_args sparc64arg = {
.num = ST_DIVISION_BY_ZERO,
.handlers = &handler
};
#else
/* For PowerPC, ARM64, RISCV archs, sysarch(2) is not supported */
atf_tc_skip("sysarch(2) is not supported for the system architecture");
#endif
FILE *pipefd = setup(fds, auclass);
#if defined(I386_GET_IOPERM)
ATF_REQUIRE_EQ(0, sysarch(I386_GET_IOPERM, &i3sysarg));
#elif defined(AMD64_GET_FSBASE)
ATF_REQUIRE_EQ(0, sysarch(AMD64_GET_FSBASE, &amd64arg));
#elif defined(MIPS_GET_TLS)
ATF_REQUIRE_EQ(0, sysarch(MIPS_GET_TLS, &mipsarg));
#elif defined(ARM_SYNC_ICACHE)
ATF_REQUIRE_EQ(0, sysarch(ARM_SYNC_ICACHE, &armsysarg));
#elif defined(SPARC_UTRAP_INSTALL)
ATF_REQUIRE_EQ(0, sysarch(SPARC_UTRAP_INSTALL, &sparc64arg));
#endif
check_audit(fds, miscreg, pipefd);
}
ATF_TC_CLEANUP(sysarch_success, tc)
{
cleanup();
}
ATF_TC_WITH_CLEANUP(sysarch_failure);
ATF_TC_HEAD(sysarch_failure, tc)
{
atf_tc_set_md_var(tc, "descr", "Tests the audit of an unsuccessful "
"sysarch(2) call for any architecture");
}
ATF_TC_BODY(sysarch_failure, tc)
{
pid = getpid();
snprintf(miscreg, sizeof(miscreg), "sysarch.*%d.*return,failure", pid);
FILE *pipefd = setup(fds, auclass);
/* Failure reason: Invalid argument and Bad address */
ATF_REQUIRE_EQ(-1, sysarch(-1, NULL));
check_audit(fds, miscreg, pipefd);
}
ATF_TC_CLEANUP(sysarch_failure, tc)
{
cleanup();
}
ATF_TC_WITH_CLEANUP(sysctl_success);
ATF_TC_HEAD(sysctl_success, tc)
{
atf_tc_set_md_var(tc, "descr", "Tests the audit of a successful "
"sysctl(3) call");
}
ATF_TC_BODY(sysctl_success, tc)
{
int mib[2], maxproc;
size_t proclen;
/* Set mib to retrieve the maximum number of allowed processes */
mib[0] = CTL_KERN;
mib[1] = KERN_MAXPROC;
proclen = sizeof(maxproc);
pid = getpid();
snprintf(miscreg, sizeof(miscreg), "sysctl.*%d.*return,success", pid);
FILE *pipefd = setup(fds, auclass);
ATF_REQUIRE_EQ(0, sysctl(mib, 2, &maxproc, &proclen, NULL, 0));
check_audit(fds, miscreg, pipefd);
}
ATF_TC_CLEANUP(sysctl_success, tc)
{
cleanup();
}
ATF_TC_WITH_CLEANUP(sysctl_failure);
ATF_TC_HEAD(sysctl_failure, tc)
{
atf_tc_set_md_var(tc, "descr", "Tests the audit of an unsuccessful "
"sysctl(3) call");
}
ATF_TC_BODY(sysctl_failure, tc)
{
pid = getpid();
snprintf(miscreg, sizeof(miscreg), "sysctl.*%d.*return,failure", pid);
FILE *pipefd = setup(fds, auclass);
/* Failure reason: Invalid arguments */
ATF_REQUIRE_EQ(-1, sysctl(NULL, 0, NULL, NULL, NULL, 0));
check_audit(fds, miscreg, pipefd);
}
ATF_TC_CLEANUP(sysctl_failure, tc)
{
cleanup();
}
ATF_TP_ADD_TCS(tp)
{
ATF_TP_ADD_TC(tp, audit_failure);
ATF_TP_ADD_TC(tp, sysarch_success);
ATF_TP_ADD_TC(tp, sysarch_failure);
ATF_TP_ADD_TC(tp, sysctl_success);
ATF_TP_ADD_TC(tp, sysctl_failure);
return (atf_no_error());
}
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