242 lines
8.0 KiB
C
242 lines
8.0 KiB
C
/*
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* Check decoding of ppoll syscall.
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*
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* Copyright (c) 2015-2018 Dmitry V. Levin <ldv@altlinux.org>
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* All rights reserved.
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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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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "tests.h"
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#include <asm/unistd.h>
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#ifdef __NR_ppoll
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# include <errno.h>
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# include <poll.h>
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# include <signal.h>
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# include <stdio.h>
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# include <string.h>
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# include <unistd.h>
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static const char *errstr;
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static long
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sys_ppoll(const kernel_ulong_t ufds,
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const kernel_ulong_t nfds,
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const kernel_ulong_t tsp,
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const kernel_ulong_t sigmask,
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const kernel_ulong_t sigsetsize)
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{
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long rc = syscall(__NR_ppoll, ufds, nfds, tsp, sigmask, sigsetsize);
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errstr = sprintrc(rc);
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return rc;
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}
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int
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main(void)
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{
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# ifdef PATH_TRACING_FD
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skip_if_unavailable("/proc/self/fd/");
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# endif
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static const kernel_ulong_t bogus_nfds =
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(kernel_ulong_t) 0xdeadbeeffacefeedULL;
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static const kernel_ulong_t bogus_sigsetsize =
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(kernel_ulong_t) 0xdeadbeefbadc0dedULL;
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static const char *const POLLWRNORM_str =
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(POLLWRNORM == POLLOUT) ? "" : "|POLLWRNORM";
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static const char *const USR2_CHLD_str =
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(SIGUSR2 < SIGCHLD) ? "USR2 CHLD" : "CHLD USR2";
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void *const efault = tail_alloc(1024) + 1024;
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TAIL_ALLOC_OBJECT_CONST_PTR(struct timespec, ts);
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const unsigned int sigset_size = get_sigset_size();
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void *const sigmask = tail_alloc(sigset_size);
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struct pollfd *fds;
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sigset_t mask;
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int pipe_fd[4];
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long rc;
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sys_ppoll(0, bogus_nfds, 0, 0, bogus_sigsetsize);
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if (ENOSYS == errno)
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perror_msg_and_skip("ppoll");
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# ifndef PATH_TRACING_FD
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printf("ppoll(NULL, %u, NULL, NULL, %llu) = %s\n",
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(unsigned) bogus_nfds, (unsigned long long) bogus_sigsetsize,
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errstr);
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# endif
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sys_ppoll((unsigned long) efault, 42, (unsigned long) efault + 8,
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(unsigned long) efault + 16, sigset_size);
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# ifndef PATH_TRACING_FD
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printf("ppoll(%p, %u, %p, %p, %u) = %s\n",
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efault, 42, efault + 8, efault + 16, sigset_size, errstr);
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# endif
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ts->tv_sec = 0xdeadbeefU;
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ts->tv_nsec = 0xfacefeedU;
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sys_ppoll(0, 0, (unsigned long) ts, 0, sigset_size);
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# ifndef PATH_TRACING_FD
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printf("ppoll(NULL, 0, {tv_sec=%lld, tv_nsec=%llu}, NULL, %u) = %s\n",
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(long long) ts->tv_sec, zero_extend_signed_to_ull(ts->tv_nsec),
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sigset_size, errstr);
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# endif
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ts->tv_sec = (time_t) 0xcafef00ddeadbeefLL;
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ts->tv_nsec = (long) 0xbadc0dedfacefeedL;
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sys_ppoll(0, 0, (unsigned long) ts, 0, sigset_size);
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# ifndef PATH_TRACING_FD
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printf("ppoll(NULL, 0, {tv_sec=%lld, tv_nsec=%llu}, NULL, %u) = %s\n",
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(long long) ts->tv_sec, zero_extend_signed_to_ull(ts->tv_nsec),
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sigset_size, errstr);
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# endif
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if (pipe(pipe_fd) || pipe(pipe_fd + 2))
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perror_msg_and_fail("pipe");
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ts->tv_sec = 42;
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ts->tv_nsec = 999999999;
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const struct pollfd fds1[] = {
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{ .fd = pipe_fd[0], .events = POLLIN | POLLPRI | POLLRDNORM | POLLRDBAND },
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{ .fd = pipe_fd[1], .events = POLLOUT | POLLWRNORM | POLLWRBAND },
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{ .fd = pipe_fd[2], .events = POLLIN | POLLPRI },
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{ .fd = pipe_fd[3], .events = POLLOUT }
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};
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fds = efault - sizeof(fds1);
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memcpy(fds, fds1, sizeof(fds1));
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sigemptyset(&mask);
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sigaddset(&mask, SIGUSR2);
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sigaddset(&mask, SIGCHLD);
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memcpy(sigmask, &mask, sigset_size);
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rc = sys_ppoll((unsigned long) fds,
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F8ILL_KULONG_MASK | ARRAY_SIZE(fds1), (unsigned long) ts,
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(unsigned long) sigmask, sigset_size);
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if (rc != 2)
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perror_msg_and_fail("ppoll 1");
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# ifndef PATH_TRACING_FD
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printf("ppoll([{fd=%d, events=POLLIN|POLLPRI|POLLRDNORM|POLLRDBAND}"
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", {fd=%d, events=POLLOUT%s|POLLWRBAND}"
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# if VERBOSE
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", {fd=%d, events=POLLIN|POLLPRI}, {fd=%d, events=POLLOUT}]"
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# else
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", ...]"
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# endif
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", %u, {tv_sec=42, tv_nsec=999999999}, [%s], %u) = %ld"
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" ([{fd=%d, revents=POLLOUT%s}, {fd=%d, revents=POLLOUT}]"
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", left {tv_sec=%u, tv_nsec=%u})\n",
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pipe_fd[0], pipe_fd[1], POLLWRNORM_str,
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# if VERBOSE
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pipe_fd[2], pipe_fd[3],
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# endif
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(unsigned int) ARRAY_SIZE(fds1), USR2_CHLD_str,
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(unsigned int) sigset_size, rc, pipe_fd[1], POLLWRNORM_str,
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pipe_fd[3], (unsigned int) ts->tv_sec,
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(unsigned int) ts->tv_nsec);
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# endif /* !PATH_TRACING_FD */
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# ifdef PATH_TRACING_FD
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ts->tv_sec = 123;
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ts->tv_nsec = 987654321;
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fds[3].fd = PATH_TRACING_FD;
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rc = sys_ppoll((unsigned long) fds,
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F8ILL_KULONG_MASK | ARRAY_SIZE(fds1), (unsigned long) ts,
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(unsigned long) sigmask, sigset_size);
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if (rc != 2)
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perror_msg_and_fail("ppoll -P");
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printf("ppoll([{fd=%d, events=POLLIN|POLLPRI|POLLRDNORM|POLLRDBAND}"
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", {fd=%d, events=POLLOUT%s|POLLWRBAND}"
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# if VERBOSE
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", {fd=%d, events=POLLIN|POLLPRI}, {fd=%d, events=POLLOUT}]"
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# else
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", ...]"
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# endif
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", %u, {tv_sec=123, tv_nsec=987654321}, [%s], %u) = %ld"
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" ([{fd=%d, revents=POLLOUT%s}, {fd=%d, revents=POLLOUT}]"
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", left {tv_sec=%u, tv_nsec=%u})\n",
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pipe_fd[0], pipe_fd[1], POLLWRNORM_str,
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# if VERBOSE
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pipe_fd[2], PATH_TRACING_FD,
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# endif
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(unsigned int) ARRAY_SIZE(fds1), USR2_CHLD_str,
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(unsigned int) sigset_size, rc, pipe_fd[1], POLLWRNORM_str,
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PATH_TRACING_FD, (unsigned int) ts->tv_sec,
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(unsigned int) ts->tv_nsec);
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# endif /* PATH_TRACING_FD */
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ts->tv_sec = 0;
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ts->tv_nsec = 999;
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const struct pollfd fds2[] = {
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{ .fd = pipe_fd[1], .events = POLLIN | POLLPRI | POLLRDNORM | POLLRDBAND },
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{ .fd = pipe_fd[0], .events = POLLOUT | POLLWRNORM | POLLWRBAND }
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};
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fds = efault - sizeof(fds2);
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memcpy(fds, fds2, sizeof(fds2));
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memset(&mask, -1, sizeof(mask));
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sigdelset(&mask, SIGHUP);
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sigdelset(&mask, SIGKILL);
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sigdelset(&mask, SIGSTOP);
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memcpy(sigmask, &mask, sigset_size);
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rc = sys_ppoll((unsigned long) fds,
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F8ILL_KULONG_MASK | ARRAY_SIZE(fds2), (unsigned long) ts,
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(unsigned long) sigmask, sigset_size);
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if (rc != 0)
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perror_msg_and_fail("ppoll 2");
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# ifndef PATH_TRACING_FD
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printf("ppoll([{fd=%d, events=POLLIN|POLLPRI|POLLRDNORM|POLLRDBAND}"
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", {fd=%d, events=POLLOUT%s|POLLWRBAND}], %u"
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", {tv_sec=0, tv_nsec=999}, ~[HUP KILL STOP], %u)"
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" = %ld (Timeout)\n",
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pipe_fd[1], pipe_fd[0], POLLWRNORM_str,
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(unsigned) ARRAY_SIZE(fds2), sigset_size, rc);
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# endif /* !PATH_TRACING_FD */
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if (F8ILL_KULONG_SUPPORTED) {
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sys_ppoll(f8ill_ptr_to_kulong(fds), ARRAY_SIZE(fds2),
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f8ill_ptr_to_kulong(ts), f8ill_ptr_to_kulong(sigmask),
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sigset_size);
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# ifndef PATH_TRACING_FD
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printf("ppoll(%#llx, %u, %#llx, %#llx, %u) = %s\n",
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(unsigned long long) f8ill_ptr_to_kulong(fds),
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(unsigned) ARRAY_SIZE(fds2),
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(unsigned long long) f8ill_ptr_to_kulong(ts),
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(unsigned long long) f8ill_ptr_to_kulong(sigmask),
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(unsigned) sigset_size, errstr);
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# endif /* !PATH_TRACING_FD */
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}
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puts("+++ exited with 0 +++");
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return 0;
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}
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#else
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SKIP_MAIN_UNDEFINED("__NR_ppoll")
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#endif
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