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/*
* Check decoding of io_pgetevents syscall.
*
* Copyright (c) 2015-2016 Dmitry V. Levin <ldv@altlinux.org>
* Copyright (c) 2015-2018 The strace developers.
* All rights reserved.
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "tests.h"
#include <unistd.h>
#include <asm/unistd.h>
#include "scno.h"
#if defined __NR_io_setup && defined __NR_io_pgetevents
# include <fcntl.h>
# include <inttypes.h>
# include <stdio.h>
# include <time.h>
# include "nsig.h"
# include <linux/aio_abi.h>
# if !HAVE_STRUCT___AIO_SIGSET
struct __aio_sigset {
sigset_t *sigmask;
size_t sigsetsize;
};
# endif
static const char *errstr;
static long
sys_io_pgetevents(const kernel_ulong_t ctx_id,
const kernel_long_t min_nr,
const kernel_long_t nr,
const kernel_ulong_t events,
const kernel_ulong_t timeout,
const kernel_ulong_t usig)
{
long rc = syscall(__NR_io_pgetevents, ctx_id, min_nr, nr,
events, timeout, usig);
errstr = sprintrc(rc);
return rc;
}
int
main(void)
{
static const kernel_ulong_t bogus_ctx =
(kernel_ulong_t) 0xface1e55deadbeefLL;
static const kernel_long_t bogus_min_nr =
(kernel_long_t) 0xca7faceddeadf00dLL;
static const kernel_long_t bogus_nr =
(kernel_long_t) 0xba5e1e505ca571e0LL;
static const size_t bogus_sigsetsize =
(size_t) 0xdeadbeefbadcaffeULL;
const unsigned int sizeof_data0 = 4096;
const unsigned int sizeof_data1 = 8192;
void *data0 = tail_alloc(sizeof_data0);
void *data1 = tail_alloc(sizeof_data1);
const struct iocb proto_cb[] = {
{
.aio_data = (unsigned long) 0xfeedface11111111ULL,
.aio_reqprio = 11,
.aio_buf = (unsigned long) data0,
.aio_offset = (unsigned long) 0xdeface1facefeedULL,
.aio_nbytes = sizeof_data0
},
{
.aio_data = (unsigned long) 0xfeedface22222222ULL,
.aio_reqprio = 22,
.aio_buf = (unsigned long) data1,
.aio_offset = (unsigned long) 0xdeface2cafef00dULL,
.aio_nbytes = sizeof_data1
}
};
const struct iocb *cb = tail_memdup(proto_cb, sizeof(proto_cb));
const long proto_cbs[] = {
(long) &cb[0], (long) &cb[1]
};
const long *cbs = tail_memdup(proto_cbs, sizeof(proto_cbs));
TAIL_ALLOC_OBJECT_CONST_PTR(unsigned long, ctx);
*ctx = 0;
const unsigned int nr = ARRAY_SIZE(proto_cb);
const struct io_event *ev = tail_alloc(nr * sizeof(struct io_event));
TAIL_ALLOC_OBJECT_CONST_PTR(struct timespec, ts);
TAIL_ALLOC_OBJECT_CONST_PTR(struct __aio_sigset, ss);
TAIL_ALLOC_OBJECT_CONST_PTR(sigset_t, sigs);
(void) close(0);
if (open("/dev/zero", O_RDONLY))
perror_msg_and_skip("open: %s", "/dev/zero");
if (syscall(__NR_io_setup, nr, ctx))
perror_msg_and_skip("io_setup");
if (syscall(__NR_io_submit, *ctx, nr, cbs) != (long) nr)
perror_msg_and_skip("io_submit");
sys_io_pgetevents(bogus_ctx, bogus_min_nr, bogus_nr,
(uintptr_t) (ev + 1), 0, 0);
printf("io_pgetevents(%#jx, %ld, %ld, %p, NULL, NULL) = %s\n",
(uintmax_t) bogus_ctx, (long) bogus_min_nr,
(long) bogus_nr, ev + 1, errstr);
sys_io_pgetevents(bogus_ctx, bogus_min_nr, bogus_nr,
0, (uintptr_t) (ts + 1), 0);
printf("io_pgetevents(%#jx, %ld, %ld, NULL, %p, NULL) = %s\n",
(uintmax_t) bogus_ctx, (long) bogus_min_nr,
(long) bogus_nr, ts + 1, errstr);
sys_io_pgetevents(bogus_ctx, bogus_min_nr, bogus_nr,
0, 0, (uintptr_t) (ss + 1));
printf("io_pgetevents(%#jx, %ld, %ld, NULL, NULL, %p) = %s\n",
(uintmax_t) bogus_ctx, (long) bogus_min_nr,
(long) bogus_nr, ss + 1, errstr);
ss->sigmask = sigs + 1;
ss->sigsetsize = bogus_sigsetsize;
sys_io_pgetevents(bogus_ctx, bogus_min_nr, bogus_nr,
0, 0, (uintptr_t) ss);
printf("io_pgetevents(%#jx, %ld, %ld, NULL, NULL"
", {sigmask=%p, sigsetsize=%zu}) = %s\n",
(uintmax_t) bogus_ctx, (long) bogus_min_nr,
(long) bogus_nr, sigs + 1, bogus_sigsetsize, errstr);
ts->tv_sec = 0xdeadbeefU;
ts->tv_nsec = 0xfacefeedU;
ss->sigmask = sigs;
ss->sigsetsize = NSIG_BYTES;
sys_io_pgetevents(bogus_ctx, 0, 0, 0, (uintptr_t) ts, (uintptr_t) ss);
printf("io_pgetevents(%#jx, 0, 0, NULL"
", {tv_sec=%lld, tv_nsec=%llu}"
", {sigmask=~[], sigsetsize=%u}) = %s\n",
(uintmax_t) bogus_ctx, (long long) ts->tv_sec,
zero_extend_signed_to_ull(ts->tv_nsec), NSIG_BYTES,
errstr);
sigemptyset(sigs);
sigaddset(sigs, SIGSYS);
ts->tv_sec = (time_t) 0xcafef00ddeadbeefLL;
ts->tv_nsec = (long) 0xbadc0dedfacefeedLL;
sys_io_pgetevents(bogus_ctx, 0, 0, 0, (uintptr_t) ts, (uintptr_t) ss);
printf("io_pgetevents(%#jx, 0, 0, NULL"
", {tv_sec=%lld, tv_nsec=%llu}"
", {sigmask=[SYS], sigsetsize=%u}) = %s\n",
(uintmax_t) bogus_ctx, (long long) ts->tv_sec,
zero_extend_signed_to_ull(ts->tv_nsec), NSIG_BYTES,
errstr);
puts("+++ exited with 0 +++");
return 0;
}
#else
SKIP_MAIN_UNDEFINED("__NR_io_setup && __NR_io_pgetevents")
#endif
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