691 lines
24 KiB
C
691 lines
24 KiB
C
/* SPDX-License-Identifier: LGPL-2.1+ */
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#include <poll.h>
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#include <sched.h>
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#include <stdlib.h>
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#include <sys/eventfd.h>
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#include <sys/mman.h>
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#include <sys/personality.h>
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#include <sys/shm.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include "alloc-util.h"
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#include "fd-util.h"
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#include "macro.h"
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#include "missing.h"
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#include "nsflags.h"
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#include "process-util.h"
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#include "raw-clone.h"
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#include "seccomp-util.h"
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#include "set.h"
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#include "string-util.h"
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#include "tests.h"
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#include "util.h"
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#include "virt.h"
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#if SCMP_SYS(socket) < 0 || defined(__i386__) || defined(__s390x__) || defined(__s390__)
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/* On these archs, socket() is implemented via the socketcall() syscall multiplexer,
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* and we can't restrict it hence via seccomp. */
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# define SECCOMP_RESTRICT_ADDRESS_FAMILIES_BROKEN 1
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#else
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# define SECCOMP_RESTRICT_ADDRESS_FAMILIES_BROKEN 0
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#endif
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static void test_seccomp_arch_to_string(void) {
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uint32_t a, b;
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const char *name;
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a = seccomp_arch_native();
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assert_se(a > 0);
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name = seccomp_arch_to_string(a);
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assert_se(name);
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assert_se(seccomp_arch_from_string(name, &b) >= 0);
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assert_se(a == b);
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}
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static void test_architecture_table(void) {
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const char *n, *n2;
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NULSTR_FOREACH(n,
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"native\0"
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"x86\0"
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"x86-64\0"
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"x32\0"
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"arm\0"
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"arm64\0"
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"mips\0"
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"mips64\0"
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"mips64-n32\0"
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"mips-le\0"
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"mips64-le\0"
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"mips64-le-n32\0"
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"ppc\0"
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"ppc64\0"
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"ppc64-le\0"
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"s390\0"
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"s390x\0") {
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uint32_t c;
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assert_se(seccomp_arch_from_string(n, &c) >= 0);
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n2 = seccomp_arch_to_string(c);
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log_info("seccomp-arch: %s → 0x%"PRIx32" → %s", n, c, n2);
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assert_se(streq_ptr(n, n2));
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}
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}
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static void test_syscall_filter_set_find(void) {
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assert_se(!syscall_filter_set_find(NULL));
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assert_se(!syscall_filter_set_find(""));
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assert_se(!syscall_filter_set_find("quux"));
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assert_se(!syscall_filter_set_find("@quux"));
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assert_se(syscall_filter_set_find("@clock") == syscall_filter_sets + SYSCALL_FILTER_SET_CLOCK);
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assert_se(syscall_filter_set_find("@default") == syscall_filter_sets + SYSCALL_FILTER_SET_DEFAULT);
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assert_se(syscall_filter_set_find("@raw-io") == syscall_filter_sets + SYSCALL_FILTER_SET_RAW_IO);
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}
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static void test_filter_sets(void) {
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unsigned i;
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int r;
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if (!is_seccomp_available())
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return;
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if (geteuid() != 0)
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return;
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for (i = 0; i < _SYSCALL_FILTER_SET_MAX; i++) {
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pid_t pid;
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log_info("Testing %s", syscall_filter_sets[i].name);
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pid = fork();
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assert_se(pid >= 0);
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if (pid == 0) { /* Child? */
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int fd;
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/* if we look at the default set (or one that includes it), whitelist instead of blacklist */
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if (IN_SET(i, SYSCALL_FILTER_SET_DEFAULT, SYSCALL_FILTER_SET_SYSTEM_SERVICE))
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r = seccomp_load_syscall_filter_set(SCMP_ACT_ERRNO(EUCLEAN), syscall_filter_sets + i, SCMP_ACT_ALLOW);
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else
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r = seccomp_load_syscall_filter_set(SCMP_ACT_ALLOW, syscall_filter_sets + i, SCMP_ACT_ERRNO(EUCLEAN));
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if (r < 0)
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_exit(EXIT_FAILURE);
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/* Test the sycall filter with one random system call */
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fd = eventfd(0, EFD_NONBLOCK|EFD_CLOEXEC);
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if (IN_SET(i, SYSCALL_FILTER_SET_IO_EVENT, SYSCALL_FILTER_SET_DEFAULT))
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assert_se(fd < 0 && errno == EUCLEAN);
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else {
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assert_se(fd >= 0);
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safe_close(fd);
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}
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_exit(EXIT_SUCCESS);
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}
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assert_se(wait_for_terminate_and_check(syscall_filter_sets[i].name, pid, WAIT_LOG) == EXIT_SUCCESS);
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}
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}
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static void test_restrict_namespace(void) {
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char *s = NULL;
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unsigned long ul;
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pid_t pid;
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assert_se(namespace_flags_to_string(0, &s) == 0 && streq(s, ""));
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s = mfree(s);
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assert_se(namespace_flags_to_string(CLONE_NEWNS, &s) == 0 && streq(s, "mnt"));
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s = mfree(s);
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assert_se(namespace_flags_to_string(CLONE_NEWNS|CLONE_NEWIPC, &s) == 0 && streq(s, "ipc mnt"));
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s = mfree(s);
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assert_se(namespace_flags_to_string(CLONE_NEWCGROUP, &s) == 0 && streq(s, "cgroup"));
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s = mfree(s);
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assert_se(namespace_flags_from_string("mnt", &ul) == 0 && ul == CLONE_NEWNS);
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assert_se(namespace_flags_from_string(NULL, &ul) == 0 && ul == 0);
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assert_se(namespace_flags_from_string("", &ul) == 0 && ul == 0);
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assert_se(namespace_flags_from_string("uts", &ul) == 0 && ul == CLONE_NEWUTS);
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assert_se(namespace_flags_from_string("mnt uts ipc", &ul) == 0 && ul == (CLONE_NEWNS|CLONE_NEWUTS|CLONE_NEWIPC));
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assert_se(namespace_flags_to_string(CLONE_NEWUTS, &s) == 0 && streq(s, "uts"));
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assert_se(namespace_flags_from_string(s, &ul) == 0 && ul == CLONE_NEWUTS);
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s = mfree(s);
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assert_se(namespace_flags_from_string("ipc", &ul) == 0 && ul == CLONE_NEWIPC);
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assert_se(namespace_flags_to_string(ul, &s) == 0 && streq(s, "ipc"));
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s = mfree(s);
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assert_se(namespace_flags_to_string(NAMESPACE_FLAGS_ALL, &s) == 0);
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assert_se(streq(s, "cgroup ipc net mnt pid user uts"));
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assert_se(namespace_flags_from_string(s, &ul) == 0 && ul == NAMESPACE_FLAGS_ALL);
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s = mfree(s);
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if (!is_seccomp_available())
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return;
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if (geteuid() != 0)
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return;
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pid = fork();
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assert_se(pid >= 0);
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if (pid == 0) {
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assert_se(seccomp_restrict_namespaces(CLONE_NEWNS|CLONE_NEWNET) >= 0);
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assert_se(unshare(CLONE_NEWNS) == 0);
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assert_se(unshare(CLONE_NEWNET) == 0);
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assert_se(unshare(CLONE_NEWUTS) == -1);
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assert_se(errno == EPERM);
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assert_se(unshare(CLONE_NEWIPC) == -1);
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assert_se(errno == EPERM);
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assert_se(unshare(CLONE_NEWNET|CLONE_NEWUTS) == -1);
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assert_se(errno == EPERM);
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/* We use fd 0 (stdin) here, which of course will fail with EINVAL on setns(). Except of course our
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* seccomp filter worked, and hits first and makes it return EPERM */
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assert_se(setns(0, CLONE_NEWNS) == -1);
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assert_se(errno == EINVAL);
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assert_se(setns(0, CLONE_NEWNET) == -1);
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assert_se(errno == EINVAL);
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assert_se(setns(0, CLONE_NEWUTS) == -1);
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assert_se(errno == EPERM);
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assert_se(setns(0, CLONE_NEWIPC) == -1);
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assert_se(errno == EPERM);
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assert_se(setns(0, CLONE_NEWNET|CLONE_NEWUTS) == -1);
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assert_se(errno == EPERM);
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assert_se(setns(0, 0) == -1);
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assert_se(errno == EPERM);
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pid = raw_clone(CLONE_NEWNS);
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assert_se(pid >= 0);
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if (pid == 0)
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_exit(EXIT_SUCCESS);
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pid = raw_clone(CLONE_NEWNET);
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assert_se(pid >= 0);
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if (pid == 0)
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_exit(EXIT_SUCCESS);
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pid = raw_clone(CLONE_NEWUTS);
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assert_se(pid < 0);
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assert_se(errno == EPERM);
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pid = raw_clone(CLONE_NEWIPC);
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assert_se(pid < 0);
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assert_se(errno == EPERM);
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pid = raw_clone(CLONE_NEWNET|CLONE_NEWUTS);
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assert_se(pid < 0);
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assert_se(errno == EPERM);
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_exit(EXIT_SUCCESS);
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}
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assert_se(wait_for_terminate_and_check("nsseccomp", pid, WAIT_LOG) == EXIT_SUCCESS);
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}
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static void test_protect_sysctl(void) {
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pid_t pid;
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if (!is_seccomp_available())
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return;
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if (geteuid() != 0)
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return;
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if (detect_container() > 0) /* in containers _sysctl() is likely missing anyway */
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return;
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pid = fork();
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assert_se(pid >= 0);
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if (pid == 0) {
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#if __NR__sysctl > 0
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assert_se(syscall(__NR__sysctl, NULL) < 0);
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assert_se(errno == EFAULT);
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#endif
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assert_se(seccomp_protect_sysctl() >= 0);
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#if __NR__sysctl > 0
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assert_se(syscall(__NR__sysctl, 0, 0, 0) < 0);
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assert_se(errno == EPERM);
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#endif
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_exit(EXIT_SUCCESS);
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}
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assert_se(wait_for_terminate_and_check("sysctlseccomp", pid, WAIT_LOG) == EXIT_SUCCESS);
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}
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static void test_restrict_address_families(void) {
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pid_t pid;
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if (!is_seccomp_available())
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return;
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if (geteuid() != 0)
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return;
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pid = fork();
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assert_se(pid >= 0);
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if (pid == 0) {
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int fd;
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Set *s;
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fd = socket(AF_INET, SOCK_DGRAM, 0);
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assert_se(fd >= 0);
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safe_close(fd);
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fd = socket(AF_UNIX, SOCK_DGRAM, 0);
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assert_se(fd >= 0);
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safe_close(fd);
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fd = socket(AF_NETLINK, SOCK_DGRAM, 0);
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assert_se(fd >= 0);
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safe_close(fd);
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assert_se(s = set_new(NULL));
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assert_se(set_put(s, INT_TO_PTR(AF_UNIX)) >= 0);
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assert_se(seccomp_restrict_address_families(s, false) >= 0);
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fd = socket(AF_INET, SOCK_DGRAM, 0);
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assert_se(fd >= 0);
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safe_close(fd);
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fd = socket(AF_UNIX, SOCK_DGRAM, 0);
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#if SECCOMP_RESTRICT_ADDRESS_FAMILIES_BROKEN
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assert_se(fd >= 0);
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safe_close(fd);
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#else
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assert_se(fd < 0);
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assert_se(errno == EAFNOSUPPORT);
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#endif
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fd = socket(AF_NETLINK, SOCK_DGRAM, 0);
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assert_se(fd >= 0);
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safe_close(fd);
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set_clear(s);
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assert_se(set_put(s, INT_TO_PTR(AF_INET)) >= 0);
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assert_se(seccomp_restrict_address_families(s, true) >= 0);
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fd = socket(AF_INET, SOCK_DGRAM, 0);
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assert_se(fd >= 0);
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safe_close(fd);
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fd = socket(AF_UNIX, SOCK_DGRAM, 0);
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#if SECCOMP_RESTRICT_ADDRESS_FAMILIES_BROKEN
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assert_se(fd >= 0);
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safe_close(fd);
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#else
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assert_se(fd < 0);
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assert_se(errno == EAFNOSUPPORT);
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#endif
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fd = socket(AF_NETLINK, SOCK_DGRAM, 0);
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#if SECCOMP_RESTRICT_ADDRESS_FAMILIES_BROKEN
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assert_se(fd >= 0);
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safe_close(fd);
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#else
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assert_se(fd < 0);
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assert_se(errno == EAFNOSUPPORT);
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#endif
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_exit(EXIT_SUCCESS);
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}
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assert_se(wait_for_terminate_and_check("socketseccomp", pid, WAIT_LOG) == EXIT_SUCCESS);
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}
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static void test_restrict_realtime(void) {
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pid_t pid;
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if (!is_seccomp_available())
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return;
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if (geteuid() != 0)
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return;
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if (detect_container() > 0) /* in containers RT privs are likely missing anyway */
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return;
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pid = fork();
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assert_se(pid >= 0);
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if (pid == 0) {
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assert_se(sched_setscheduler(0, SCHED_FIFO, &(struct sched_param) { .sched_priority = 1 }) >= 0);
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assert_se(sched_setscheduler(0, SCHED_RR, &(struct sched_param) { .sched_priority = 1 }) >= 0);
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assert_se(sched_setscheduler(0, SCHED_IDLE, &(struct sched_param) { .sched_priority = 0 }) >= 0);
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assert_se(sched_setscheduler(0, SCHED_BATCH, &(struct sched_param) { .sched_priority = 0 }) >= 0);
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assert_se(sched_setscheduler(0, SCHED_OTHER, &(struct sched_param) {}) >= 0);
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assert_se(seccomp_restrict_realtime() >= 0);
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assert_se(sched_setscheduler(0, SCHED_IDLE, &(struct sched_param) { .sched_priority = 0 }) >= 0);
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assert_se(sched_setscheduler(0, SCHED_BATCH, &(struct sched_param) { .sched_priority = 0 }) >= 0);
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assert_se(sched_setscheduler(0, SCHED_OTHER, &(struct sched_param) {}) >= 0);
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assert_se(sched_setscheduler(0, SCHED_FIFO, &(struct sched_param) { .sched_priority = 1 }) < 0);
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assert_se(errno == EPERM);
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assert_se(sched_setscheduler(0, SCHED_RR, &(struct sched_param) { .sched_priority = 1 }) < 0);
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assert_se(errno == EPERM);
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_exit(EXIT_SUCCESS);
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}
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assert_se(wait_for_terminate_and_check("realtimeseccomp", pid, WAIT_LOG) == EXIT_SUCCESS);
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}
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static void test_memory_deny_write_execute_mmap(void) {
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pid_t pid;
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if (!is_seccomp_available())
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return;
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if (geteuid() != 0)
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return;
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pid = fork();
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assert_se(pid >= 0);
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if (pid == 0) {
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void *p;
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p = mmap(NULL, page_size(), PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_ANONYMOUS, -1,0);
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assert_se(p != MAP_FAILED);
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assert_se(munmap(p, page_size()) >= 0);
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p = mmap(NULL, page_size(), PROT_WRITE|PROT_READ, MAP_PRIVATE|MAP_ANONYMOUS, -1,0);
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assert_se(p != MAP_FAILED);
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assert_se(munmap(p, page_size()) >= 0);
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assert_se(seccomp_memory_deny_write_execute() >= 0);
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p = mmap(NULL, page_size(), PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_ANONYMOUS, -1,0);
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#if defined(__x86_64__) || defined(__i386__) || defined(__powerpc64__) || defined(__arm__) || defined(__aarch64__)
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assert_se(p == MAP_FAILED);
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assert_se(errno == EPERM);
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#else /* unknown architectures */
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assert_se(p != MAP_FAILED);
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assert_se(munmap(p, page_size()) >= 0);
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#endif
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p = mmap(NULL, page_size(), PROT_WRITE|PROT_READ, MAP_PRIVATE|MAP_ANONYMOUS, -1,0);
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assert_se(p != MAP_FAILED);
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assert_se(munmap(p, page_size()) >= 0);
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_exit(EXIT_SUCCESS);
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}
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assert_se(wait_for_terminate_and_check("memoryseccomp-mmap", pid, WAIT_LOG) == EXIT_SUCCESS);
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}
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static void test_memory_deny_write_execute_shmat(void) {
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int shmid;
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pid_t pid;
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if (!is_seccomp_available())
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return;
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if (geteuid() != 0)
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return;
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shmid = shmget(IPC_PRIVATE, page_size(), 0);
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assert_se(shmid >= 0);
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pid = fork();
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assert_se(pid >= 0);
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if (pid == 0) {
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void *p;
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p = shmat(shmid, NULL, 0);
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assert_se(p != MAP_FAILED);
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assert_se(shmdt(p) == 0);
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p = shmat(shmid, NULL, SHM_EXEC);
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assert_se(p != MAP_FAILED);
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assert_se(shmdt(p) == 0);
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assert_se(seccomp_memory_deny_write_execute() >= 0);
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p = shmat(shmid, NULL, SHM_EXEC);
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#if defined(__x86_64__) || defined(__arm__) || defined(__aarch64__)
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assert_se(p == MAP_FAILED);
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assert_se(errno == EPERM);
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#else /* __i386__, __powerpc64__, and "unknown" architectures */
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assert_se(p != MAP_FAILED);
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assert_se(shmdt(p) == 0);
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#endif
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p = shmat(shmid, NULL, 0);
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assert_se(p != MAP_FAILED);
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assert_se(shmdt(p) == 0);
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_exit(EXIT_SUCCESS);
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}
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assert_se(wait_for_terminate_and_check("memoryseccomp-shmat", pid, WAIT_LOG) == EXIT_SUCCESS);
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}
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static void test_restrict_archs(void) {
|
|
pid_t pid;
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|
|
|
if (!is_seccomp_available())
|
|
return;
|
|
if (geteuid() != 0)
|
|
return;
|
|
|
|
pid = fork();
|
|
assert_se(pid >= 0);
|
|
|
|
if (pid == 0) {
|
|
_cleanup_set_free_ Set *s = NULL;
|
|
|
|
assert_se(access("/", F_OK) >= 0);
|
|
|
|
assert_se(s = set_new(NULL));
|
|
|
|
#ifdef __x86_64__
|
|
assert_se(set_put(s, UINT32_TO_PTR(SCMP_ARCH_X86+1)) >= 0);
|
|
#endif
|
|
assert_se(seccomp_restrict_archs(s) >= 0);
|
|
|
|
assert_se(access("/", F_OK) >= 0);
|
|
assert_se(seccomp_restrict_archs(NULL) >= 0);
|
|
|
|
assert_se(access("/", F_OK) >= 0);
|
|
|
|
_exit(EXIT_SUCCESS);
|
|
}
|
|
|
|
assert_se(wait_for_terminate_and_check("archseccomp", pid, WAIT_LOG) == EXIT_SUCCESS);
|
|
}
|
|
|
|
static void test_load_syscall_filter_set_raw(void) {
|
|
pid_t pid;
|
|
|
|
if (!is_seccomp_available())
|
|
return;
|
|
if (geteuid() != 0)
|
|
return;
|
|
|
|
pid = fork();
|
|
assert_se(pid >= 0);
|
|
|
|
if (pid == 0) {
|
|
_cleanup_hashmap_free_ Hashmap *s = NULL;
|
|
|
|
assert_se(access("/", F_OK) >= 0);
|
|
assert_se(poll(NULL, 0, 0) == 0);
|
|
|
|
assert_se(seccomp_load_syscall_filter_set_raw(SCMP_ACT_ALLOW, NULL, SCMP_ACT_KILL) >= 0);
|
|
assert_se(access("/", F_OK) >= 0);
|
|
assert_se(poll(NULL, 0, 0) == 0);
|
|
|
|
assert_se(s = hashmap_new(NULL));
|
|
#if SCMP_SYS(access) >= 0
|
|
assert_se(hashmap_put(s, UINT32_TO_PTR(__NR_access + 1), INT_TO_PTR(-1)) >= 0);
|
|
#else
|
|
assert_se(hashmap_put(s, UINT32_TO_PTR(__NR_faccessat + 1), INT_TO_PTR(-1)) >= 0);
|
|
#endif
|
|
|
|
assert_se(seccomp_load_syscall_filter_set_raw(SCMP_ACT_ALLOW, s, SCMP_ACT_ERRNO(EUCLEAN)) >= 0);
|
|
|
|
assert_se(access("/", F_OK) < 0);
|
|
assert_se(errno == EUCLEAN);
|
|
|
|
assert_se(poll(NULL, 0, 0) == 0);
|
|
|
|
s = hashmap_free(s);
|
|
|
|
assert_se(s = hashmap_new(NULL));
|
|
#if SCMP_SYS(access) >= 0
|
|
assert_se(hashmap_put(s, UINT32_TO_PTR(__NR_access + 1), INT_TO_PTR(EILSEQ)) >= 0);
|
|
#else
|
|
assert_se(hashmap_put(s, UINT32_TO_PTR(__NR_faccessat + 1), INT_TO_PTR(EILSEQ)) >= 0);
|
|
#endif
|
|
|
|
assert_se(seccomp_load_syscall_filter_set_raw(SCMP_ACT_ALLOW, s, SCMP_ACT_ERRNO(EUCLEAN)) >= 0);
|
|
|
|
assert_se(access("/", F_OK) < 0);
|
|
assert_se(errno == EILSEQ);
|
|
|
|
assert_se(poll(NULL, 0, 0) == 0);
|
|
|
|
s = hashmap_free(s);
|
|
|
|
assert_se(s = hashmap_new(NULL));
|
|
#if SCMP_SYS(poll) >= 0
|
|
assert_se(hashmap_put(s, UINT32_TO_PTR(__NR_poll + 1), INT_TO_PTR(-1)) >= 0);
|
|
#else
|
|
assert_se(hashmap_put(s, UINT32_TO_PTR(__NR_ppoll + 1), INT_TO_PTR(-1)) >= 0);
|
|
#endif
|
|
|
|
assert_se(seccomp_load_syscall_filter_set_raw(SCMP_ACT_ALLOW, s, SCMP_ACT_ERRNO(EUNATCH)) >= 0);
|
|
|
|
assert_se(access("/", F_OK) < 0);
|
|
assert_se(errno == EILSEQ);
|
|
|
|
assert_se(poll(NULL, 0, 0) < 0);
|
|
assert_se(errno == EUNATCH);
|
|
|
|
s = hashmap_free(s);
|
|
|
|
assert_se(s = hashmap_new(NULL));
|
|
#if SCMP_SYS(poll) >= 0
|
|
assert_se(hashmap_put(s, UINT32_TO_PTR(__NR_poll + 1), INT_TO_PTR(EILSEQ)) >= 0);
|
|
#else
|
|
assert_se(hashmap_put(s, UINT32_TO_PTR(__NR_ppoll + 1), INT_TO_PTR(EILSEQ)) >= 0);
|
|
#endif
|
|
|
|
assert_se(seccomp_load_syscall_filter_set_raw(SCMP_ACT_ALLOW, s, SCMP_ACT_ERRNO(EUNATCH)) >= 0);
|
|
|
|
assert_se(access("/", F_OK) < 0);
|
|
assert_se(errno == EILSEQ);
|
|
|
|
assert_se(poll(NULL, 0, 0) < 0);
|
|
assert_se(errno == EILSEQ);
|
|
|
|
_exit(EXIT_SUCCESS);
|
|
}
|
|
|
|
assert_se(wait_for_terminate_and_check("syscallrawseccomp", pid, WAIT_LOG) == EXIT_SUCCESS);
|
|
}
|
|
|
|
static void test_lock_personality(void) {
|
|
unsigned long current;
|
|
pid_t pid;
|
|
|
|
if (!is_seccomp_available())
|
|
return;
|
|
if (geteuid() != 0)
|
|
return;
|
|
|
|
assert_se(opinionated_personality(¤t) >= 0);
|
|
|
|
log_info("current personality=%lu", current);
|
|
|
|
pid = fork();
|
|
assert_se(pid >= 0);
|
|
|
|
if (pid == 0) {
|
|
assert_se(seccomp_lock_personality(current) >= 0);
|
|
|
|
assert_se((unsigned long) safe_personality(current) == current);
|
|
|
|
/* Note, we also test that safe_personality() works correctly, by checkig whether errno is properly
|
|
* set, in addition to the return value */
|
|
errno = 0;
|
|
assert_se(safe_personality(PER_LINUX | ADDR_NO_RANDOMIZE) == -EPERM);
|
|
assert_se(errno == EPERM);
|
|
|
|
assert_se(safe_personality(PER_LINUX | MMAP_PAGE_ZERO) == -EPERM);
|
|
assert_se(safe_personality(PER_LINUX | ADDR_COMPAT_LAYOUT) == -EPERM);
|
|
assert_se(safe_personality(PER_LINUX | READ_IMPLIES_EXEC) == -EPERM);
|
|
assert_se(safe_personality(PER_LINUX_32BIT) == -EPERM);
|
|
assert_se(safe_personality(PER_SVR4) == -EPERM);
|
|
assert_se(safe_personality(PER_BSD) == -EPERM);
|
|
assert_se(safe_personality(current == PER_LINUX ? PER_LINUX32 : PER_LINUX) == -EPERM);
|
|
assert_se(safe_personality(PER_LINUX32_3GB) == -EPERM);
|
|
assert_se(safe_personality(PER_UW7) == -EPERM);
|
|
assert_se(safe_personality(0x42) == -EPERM);
|
|
|
|
assert_se(safe_personality(PERSONALITY_INVALID) == -EPERM); /* maybe remove this later */
|
|
|
|
assert_se((unsigned long) personality(current) == current);
|
|
_exit(EXIT_SUCCESS);
|
|
}
|
|
|
|
assert_se(wait_for_terminate_and_check("lockpersonalityseccomp", pid, WAIT_LOG) == EXIT_SUCCESS);
|
|
}
|
|
|
|
static void test_filter_sets_ordered(void) {
|
|
size_t i;
|
|
|
|
/* Ensure "@default" always remains at the beginning of the list */
|
|
assert_se(SYSCALL_FILTER_SET_DEFAULT == 0);
|
|
assert_se(streq(syscall_filter_sets[0].name, "@default"));
|
|
|
|
for (i = 0; i < _SYSCALL_FILTER_SET_MAX; i++) {
|
|
const char *k, *p = NULL;
|
|
|
|
/* Make sure each group has a description */
|
|
assert_se(!isempty(syscall_filter_sets[0].help));
|
|
|
|
/* Make sure the groups are ordered alphabetically, except for the first entry */
|
|
assert_se(i < 2 || strcmp(syscall_filter_sets[i-1].name, syscall_filter_sets[i].name) < 0);
|
|
|
|
NULSTR_FOREACH(k, syscall_filter_sets[i].value) {
|
|
|
|
/* Ensure each syscall list is in itself ordered, but groups before names */
|
|
assert_se(!p ||
|
|
(*p == '@' && *k != '@') ||
|
|
(((*p == '@' && *k == '@') ||
|
|
(*p != '@' && *k != '@')) &&
|
|
strcmp(p, k) < 0));
|
|
|
|
p = k;
|
|
}
|
|
}
|
|
}
|
|
|
|
int main(int argc, char *argv[]) {
|
|
|
|
test_setup_logging(LOG_DEBUG);
|
|
|
|
test_seccomp_arch_to_string();
|
|
test_architecture_table();
|
|
test_syscall_filter_set_find();
|
|
test_filter_sets();
|
|
test_restrict_namespace();
|
|
test_protect_sysctl();
|
|
test_restrict_address_families();
|
|
test_restrict_realtime();
|
|
test_memory_deny_write_execute_mmap();
|
|
test_memory_deny_write_execute_shmat();
|
|
test_restrict_archs();
|
|
test_load_syscall_filter_set_raw();
|
|
test_lock_personality();
|
|
test_filter_sets_ordered();
|
|
|
|
return 0;
|
|
}
|