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e16a7d8f3b
`et` means `expandtab`. ```sh rg 'vi: .* :vi' -l -0 | \ xargs -0 sed -i '' 's/vi: \(.*\) et\(.*\) :vi/vi: \1 xoet\2:vi/' rg 'vi: .* :vi' -l -0 | \ xargs -0 sed -i '' 's/vi: \(.*\)noet\(.*\):vi/vi: \1et\2 :vi/' rg 'vi: .* :vi' -l -0 | \ xargs -0 sed -i '' 's/vi: \(.*\)xoet\(.*\):vi/vi: \1noet\2:vi/' ```
120 lines
4.6 KiB
C
120 lines
4.6 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│ vi: set et ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi │
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2022 Justine Alexandra Roberts Tunney │
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│ │
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│ Permission to use, copy, modify, and/or distribute this software for │
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│ any purpose with or without fee is hereby granted, provided that the │
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│ above copyright notice and this permission notice appear in all copies. │
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│ │
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│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
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│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
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│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
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│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
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│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
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│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
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│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
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│ PERFORMANCE OF THIS SOFTWARE. │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/calls/calls.h"
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#include "libc/calls/pledge.internal.h"
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#include "libc/calls/struct/seccomp.internal.h"
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#include "libc/calls/syscall_support-sysv.internal.h"
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#include "libc/dce.h"
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#include "libc/errno.h"
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#include "libc/intrin/promises.internal.h"
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#include "libc/runtime/runtime.h"
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#include "libc/sock/sock.h"
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#include "libc/stdio/stdio.h"
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#include "libc/sysv/consts/af.h"
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#include "libc/sysv/consts/ipproto.h"
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#include "libc/sysv/consts/sig.h"
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#include "libc/sysv/consts/sock.h"
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#include "libc/testlib/subprocess.h"
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#include "libc/testlib/testlib.h"
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void SetUp(void) {
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if (pledge(0, 0) == -1) {
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fprintf(stderr, "warning: pledge() not supported on this system\n");
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exit(0);
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}
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}
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TEST(pledge, testSoftError) {
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if (IsOpenbsd()) return;
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SPAWN(fork);
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__pledge_mode = PLEDGE_PENALTY_RETURN_EPERM;
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ASSERT_SYS(0, 0, pledge("stdio", 0));
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ASSERT_SYS(EPERM, -1, socket(AF_INET, SOCK_STREAM, IPPROTO_TCP));
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_Exit(7);
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EXITS(7);
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}
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TEST(pledge, testKillThreadMode) {
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SPAWN(fork);
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__pledge_mode = PLEDGE_PENALTY_KILL_THREAD | PLEDGE_STDERR_LOGGING;
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ASSERT_SYS(0, 0, pledge("stdio", 0));
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socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
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TERMS(SIGABRT);
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}
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TEST(pledge, testKillProcessMode) {
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SPAWN(fork);
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__pledge_mode = PLEDGE_PENALTY_KILL_PROCESS | PLEDGE_STDERR_LOGGING;
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ASSERT_SYS(0, 0, pledge("stdio", 0));
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socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
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TERMS(SIGABRT);
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}
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TEST(pledge, testLogMessage_inSoftyMode) {
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if (IsOpenbsd()) return;
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int fds[2];
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char msg[256] = {0};
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ASSERT_SYS(0, 0, pipe(fds));
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SPAWN(fork);
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__pledge_mode = PLEDGE_PENALTY_RETURN_EPERM | PLEDGE_STDERR_LOGGING;
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ASSERT_SYS(0, 2, dup2(fds[1], 2));
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ASSERT_SYS(0, 0, pledge("stdio", 0));
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ASSERT_SYS(EPERM, -1, socket(AF_INET, SOCK_STREAM, IPPROTO_TCP));
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EXITS(0);
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close(fds[1]);
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read(fds[0], msg, sizeof(msg) - 1);
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close(fds[0]);
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if (IsLinux()) {
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ASSERT_STARTSWITH("error: protected syscall socket", msg);
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}
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}
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TEST(pledge, testLogMessage_onKillProcess) {
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int fds[2];
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char msg[256] = {0};
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ASSERT_SYS(0, 0, pipe(fds));
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SPAWN(fork);
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__pledge_mode = PLEDGE_PENALTY_KILL_THREAD | PLEDGE_STDERR_LOGGING;
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ASSERT_SYS(0, 2, dup2(fds[1], 2));
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ASSERT_SYS(0, 0, pledge("stdio", 0));
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socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
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TERMS(SIGABRT);
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close(fds[1]);
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read(fds[0], msg, sizeof(msg));
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close(fds[0]);
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if (IsLinux()) {
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ASSERT_STARTSWITH("error: protected syscall socket", msg);
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}
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}
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TEST(pledge, testDoublePledge_isFine) {
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SPAWN(fork);
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__pledge_mode = PLEDGE_PENALTY_KILL_THREAD;
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ASSERT_SYS(0, 0, pledge("stdio", 0));
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ASSERT_SYS(0, 0, pledge("stdio", 0));
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EXITS(0);
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}
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TEST(pledge, testEmptyPledge_doesntUseTrapping) {
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SPAWN(fork);
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__pledge_mode = PLEDGE_PENALTY_KILL_PROCESS;
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ASSERT_SYS(0, 0, pledge("", 0));
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socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
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TERMS(IsOpenbsd() ? SIGABRT : SIGSYS);
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}
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