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|
/*
* Check decoding of sched_getattr and sched_setattr syscalls.
*
* Copyright (c) 2015-2017 Dmitry V. Levin <ldv@strace.io>
* Copyright (c) 2015-2021 The strace developers.
* All rights reserved.
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "tests.h"
#include "scno.h"
#include <inttypes.h>
#include <stdio.h>
#include <sched.h>
#include <unistd.h>
#include "pidns.h"
#include "sched_attr.h"
#include "xlat.h"
#include "xlat/schedulers.h"
static const char *errstr;
static long
sys_sched_getattr(kernel_ulong_t pid, kernel_ulong_t attr,
kernel_ulong_t size, kernel_ulong_t flags)
{
long rc = syscall(__NR_sched_getattr, pid, attr, size, flags);
errstr = sprintrc(rc);
return rc;
}
static long
sys_sched_setattr(kernel_ulong_t pid, kernel_ulong_t attr, kernel_ulong_t flags)
{
long rc = syscall(__NR_sched_setattr, pid, attr, flags);
errstr = sprintrc(rc);
return rc;
}
int
main(void)
{
PIDNS_TEST_INIT;
static const kernel_ulong_t bogus_pid =
(kernel_ulong_t) 0xdefacedfacefeedULL;
static const kernel_ulong_t bogus_size =
(kernel_ulong_t) 0xdefacedcafef00dULL;
static const kernel_ulong_t bogus_flags =
(kernel_ulong_t) 0xdefaceddeadc0deULL;
const int pid = getpid();
const char *pid_str = pidns_pid2str(PT_TGID);
TAIL_ALLOC_OBJECT_CONST_PTR(struct sched_attr, attr);
TAIL_ALLOC_OBJECT_CONST_PTR(unsigned int, psize);
void *const efault = attr + 1;
sys_sched_getattr(pid, 0, 0, 0);
pidns_print_leader();
printf("sched_getattr(%d%s, NULL, 0, 0) = %s\n",
pid, pid_str, errstr);
sys_sched_getattr(0, (unsigned long) attr, 0, 0);
pidns_print_leader();
printf("sched_getattr(0, %p, 0, 0) = %s\n", attr, errstr);
sys_sched_getattr(bogus_pid, 0, 0, 0);
pidns_print_leader();
printf("sched_getattr(%d, NULL, 0, 0) = %s\n", (int) bogus_pid, errstr);
sys_sched_getattr(-1U, (unsigned long) attr, bogus_size, bogus_flags);
pidns_print_leader();
printf("sched_getattr(-1, %p, %s%u, %u) = %s\n",
attr,
#if defined __arm64__ || defined __aarch64__
"0xdefaced<<32|",
#else
"",
#endif
(unsigned) bogus_size, (unsigned) bogus_flags, errstr);
sys_sched_getattr(0, (unsigned long) efault, SCHED_ATTR_MIN_SIZE, 0);
pidns_print_leader();
printf("sched_getattr(0, %p, %u, 0) = %s\n",
efault, (unsigned) SCHED_ATTR_MIN_SIZE, errstr);
if (sys_sched_getattr(0, (unsigned long) attr, SCHED_ATTR_MIN_SIZE, 0))
perror_msg_and_skip("sched_getattr");
pidns_print_leader();
printf("sched_getattr(0, {size=%u, sched_policy=", attr->size);
printxval(schedulers, attr->sched_policy, NULL);
printf(", sched_flags=%s, sched_nice=%d, sched_priority=%u"
", sched_runtime=%" PRIu64 ", sched_deadline=%" PRIu64
", sched_period=%" PRIu64 "}, %u, 0) = 0\n",
attr->sched_flags ? "SCHED_FLAG_RESET_ON_FORK" : "0",
attr->sched_nice,
attr->sched_priority,
attr->sched_runtime,
attr->sched_deadline,
attr->sched_period,
(unsigned) SCHED_ATTR_MIN_SIZE);
sys_sched_getattr(0, (unsigned long) efault, sizeof(*attr), 0);
pidns_print_leader();
printf("sched_getattr(0, %p, %u, 0) = %s\n",
efault, (unsigned) sizeof(*attr), errstr);
if (sys_sched_getattr(0, (unsigned long) attr, sizeof(*attr), 0))
perror_msg_and_skip("sched_getattr");
pidns_print_leader();
printf("sched_getattr(0, {size=%u, sched_policy=", attr->size);
printxval(schedulers, attr->sched_policy, NULL);
printf(", sched_flags=%s, sched_nice=%d, sched_priority=%u"
", sched_runtime=%" PRIu64 ", sched_deadline=%" PRIu64
", sched_period=%" PRIu64,
attr->sched_flags ? "SCHED_FLAG_RESET_ON_FORK" : "0",
attr->sched_nice,
attr->sched_priority,
attr->sched_runtime,
attr->sched_deadline,
attr->sched_period);
if (attr->size >= SCHED_ATTR_SIZE_VER1) {
printf(", sched_util_min=%u, sched_util_max=%u",
attr->sched_util_min,
attr->sched_util_max);
}
printf("}, %u, 0) = 0\n", (unsigned) sizeof(*attr));
#if defined __arm64__ || defined __aarch64__
long rc =
#endif
sys_sched_getattr(F8ILL_KULONG_MASK, (unsigned long) attr,
F8ILL_KULONG_MASK | sizeof(*attr), F8ILL_KULONG_MASK);
#if defined __arm64__ || defined __aarch64__
if (rc) {
pidns_print_leader();
printf("sched_getattr(0, %p, 0xffffffff<<32|%u, 0) = %s\n",
attr, (unsigned) sizeof(*attr), errstr);
} else
#endif
{
pidns_print_leader();
printf("sched_getattr(0, {size=%u, sched_policy=", attr->size);
printxval(schedulers, attr->sched_policy, NULL);
printf(", sched_flags=%s, sched_nice=%d, sched_priority=%u"
", sched_runtime=%" PRIu64 ", sched_deadline=%" PRIu64
", sched_period=%" PRIu64,
attr->sched_flags ? "SCHED_FLAG_RESET_ON_FORK" : "0",
attr->sched_nice,
attr->sched_priority,
attr->sched_runtime,
attr->sched_deadline,
attr->sched_period);
if (attr->size >= SCHED_ATTR_SIZE_VER1) {
printf(", sched_util_min=%u, sched_util_max=%u",
attr->sched_util_min,
attr->sched_util_max);
}
printf("}, %u, 0) = 0\n", (unsigned) sizeof(*attr));
}
sys_sched_setattr(bogus_pid, 0, 0);
pidns_print_leader();
printf("sched_setattr(%d, NULL, 0) = %s\n", (int) bogus_pid, errstr);
attr->sched_flags |= 1;
if (sys_sched_setattr(pid, (unsigned long) attr, 0))
perror_msg_and_skip("sched_setattr");
pidns_print_leader();
printf("sched_setattr(%d%s, {size=%u, sched_policy=",
pid, pid_str, attr->size);
printxval(schedulers, attr->sched_policy, NULL);
printf(", sched_flags=%s, sched_nice=%d, sched_priority=%u"
", sched_runtime=%" PRIu64 ", sched_deadline=%" PRIu64
", sched_period=%" PRIu64,
"SCHED_FLAG_RESET_ON_FORK",
attr->sched_nice,
attr->sched_priority,
attr->sched_runtime,
attr->sched_deadline,
attr->sched_period);
if (attr->size >= SCHED_ATTR_SIZE_VER1) {
printf(", sched_util_min=%u, sched_util_max=%u",
attr->sched_util_min,
attr->sched_util_max);
}
printf("}, 0) = 0\n");
sys_sched_setattr(F8ILL_KULONG_MASK, (unsigned long) attr,
F8ILL_KULONG_MASK);
pidns_print_leader();
printf("sched_setattr(0, {size=%u, sched_policy=", attr->size);
printxval(schedulers, attr->sched_policy, NULL);
printf(", sched_flags=%s, sched_nice=%d, sched_priority=%u"
", sched_runtime=%" PRIu64 ", sched_deadline=%" PRIu64
", sched_period=%" PRIu64,
"SCHED_FLAG_RESET_ON_FORK",
attr->sched_nice,
attr->sched_priority,
attr->sched_runtime,
attr->sched_deadline,
attr->sched_period);
if (attr->size >= SCHED_ATTR_SIZE_VER1) {
printf(", sched_util_min=%u, sched_util_max=%u",
attr->sched_util_min,
attr->sched_util_max);
}
printf("}, 0) = 0\n");
*psize = attr->size;
sys_sched_setattr(0, (unsigned long) psize, 0);
pidns_print_leader();
printf("sched_setattr(0, %p, 0) = %s\n", psize, errstr);
attr->size = 0;
sys_sched_setattr(0, (unsigned long) attr, 0);
pidns_print_leader();
printf("sched_setattr(0, {size=%u, sched_policy=", attr->size);
printxval(schedulers, attr->sched_policy, NULL);
printf(", sched_flags=%s, sched_nice=%d, sched_priority=%u"
", sched_runtime=%" PRIu64 ", sched_deadline=%" PRIu64
", sched_period=%" PRIu64 "}, 0) = 0\n",
"SCHED_FLAG_RESET_ON_FORK",
attr->sched_nice,
attr->sched_priority,
attr->sched_runtime,
attr->sched_deadline,
attr->sched_period);
attr->size = 1;
sys_sched_setattr(0, (unsigned long) attr, 0);
pidns_print_leader();
printf("sched_setattr(0, {size=%u} => {size=%u}, 0) = %s\n",
1, attr->size, errstr);
attr->size = SCHED_ATTR_MIN_SIZE - 1;
sys_sched_setattr(0, (unsigned long) attr, 0);
pidns_print_leader();
printf("sched_setattr(0, {size=%u} => {size=%u}, 0) = %s\n",
SCHED_ATTR_MIN_SIZE - 1, attr->size, errstr);
attr->size = 0x90807060;
attr->sched_policy = 0xca7faced;
attr->sched_flags = 0xbadc0ded1057da80ULL;
attr->sched_nice = 0xafbfcfdf;
attr->sched_priority = 0xb8c8d8e8;
attr->sched_runtime = 0xbadcaffedeadf157ULL;
attr->sched_deadline = 0xc0de70a57badac75ULL;
attr->sched_period = 0xded1ca7edda7aca7ULL;
sys_sched_setattr(bogus_pid, (unsigned long) attr, bogus_flags);
pidns_print_leader();
printf("sched_setattr(%d, {size=%u, sched_policy=%#x /* SCHED_??? */, "
"sched_flags=%#" PRIx64 " /* SCHED_FLAG_??? */, "
"sched_nice=%d, sched_priority=%u, sched_runtime=%" PRIu64 ", "
"sched_deadline=%" PRIu64 ", sched_period=%" PRIu64 ", "
"sched_util_min=%u, sched_util_max=%u, ...}, %u) = %s\n",
(int) bogus_pid,
attr->size,
attr->sched_policy,
attr->sched_flags,
attr->sched_nice,
attr->sched_priority,
attr->sched_runtime,
attr->sched_deadline,
attr->sched_period,
attr->sched_util_min,
attr->sched_util_max,
(unsigned) bogus_flags, errstr);
if (F8ILL_KULONG_SUPPORTED) {
const kernel_ulong_t ill = f8ill_ptr_to_kulong(attr);
sys_sched_getattr(0, ill, sizeof(*attr), 0);
printf("sched_getattr(0, %#llx, %u, 0) = %s\n",
(unsigned long long) ill, (unsigned) sizeof(*attr),
errstr);
sys_sched_setattr(0, ill, 0);
printf("sched_setattr(0, %#llx, 0) = %s\n",
(unsigned long long) ill, errstr);
}
attr->size = 0x90807060;
attr->sched_policy = 0xca7faced;
attr->sched_flags = 0x87ULL;
attr->sched_nice = 0xafbfcfdf;
attr->sched_priority = 0xb8c8d8e8;
attr->sched_runtime = 0xbadcaffedeadf157ULL;
attr->sched_deadline = 0xc0de70a57badac75ULL;
attr->sched_period = 0xded1ca7edda7aca7ULL;
sys_sched_setattr(bogus_pid, (unsigned long) attr, bogus_flags);
pidns_print_leader();
printf("sched_setattr(%d, {size=%u, sched_policy=%#x /* SCHED_??? */, "
"sched_flags=SCHED_FLAG_RESET_ON_FORK|SCHED_FLAG_RECLAIM|"
"SCHED_FLAG_DL_OVERRUN|0x80, "
"sched_nice=%d, sched_priority=%u, sched_runtime=%" PRIu64 ", "
"sched_deadline=%" PRIu64 ", sched_period=%" PRIu64 ", "
"sched_util_min=%u, sched_util_max=%u, ...}, %u) = %s\n",
(int) bogus_pid,
attr->size,
attr->sched_policy,
attr->sched_nice,
attr->sched_priority,
attr->sched_runtime,
attr->sched_deadline,
attr->sched_period,
attr->sched_util_min,
attr->sched_util_max,
(unsigned) bogus_flags, errstr);
if (F8ILL_KULONG_SUPPORTED) {
const kernel_ulong_t ill = f8ill_ptr_to_kulong(attr);
sys_sched_getattr(0, ill, sizeof(*attr), 0);
pidns_print_leader();
printf("sched_getattr(0, %#llx, %u, 0) = %s\n",
(unsigned long long) ill, (unsigned) sizeof(*attr),
errstr);
sys_sched_setattr(0, ill, 0);
pidns_print_leader();
printf("sched_setattr(0, %#llx, 0) = %s\n",
(unsigned long long) ill, errstr);
}
attr->size = SCHED_ATTR_MIN_SIZE;
attr->sched_policy = 0xdefaced;
attr->sched_flags = 0x8fULL;
sys_sched_setattr(bogus_pid, (unsigned long) attr, bogus_flags);
pidns_print_leader();
printf("sched_setattr(%d, {size=%u, "
"sched_flags=SCHED_FLAG_RESET_ON_FORK|SCHED_FLAG_RECLAIM|"
"SCHED_FLAG_DL_OVERRUN|SCHED_FLAG_KEEP_POLICY|0x80, "
"sched_nice=%d, sched_priority=%u, sched_runtime=%" PRIu64 ", "
"sched_deadline=%" PRIu64 ", sched_period=%" PRIu64 "}, %u)"
" = %s\n",
(int) bogus_pid,
attr->size,
attr->sched_nice,
attr->sched_priority,
attr->sched_runtime,
attr->sched_deadline,
attr->sched_period,
(unsigned) bogus_flags, errstr);
if (F8ILL_KULONG_SUPPORTED) {
const kernel_ulong_t ill = f8ill_ptr_to_kulong(attr);
sys_sched_getattr(0, ill, sizeof(*attr), 0);
pidns_print_leader();
printf("sched_getattr(0, %#llx, %u, 0) = %s\n",
(unsigned long long) ill, (unsigned) sizeof(*attr),
errstr);
sys_sched_setattr(0, ill, 0);
pidns_print_leader();
printf("sched_setattr(0, %#llx, 0) = %s\n",
(unsigned long long) ill, errstr);
}
attr->size = SCHED_ATTR_SIZE_VER1;
attr->sched_flags = 0xe7ULL;
sys_sched_setattr(bogus_pid, (unsigned long) attr, bogus_flags);
pidns_print_leader();
printf("sched_setattr(%d, {size=%u, sched_policy=%#x /* SCHED_??? */, "
"sched_flags=SCHED_FLAG_RESET_ON_FORK|SCHED_FLAG_RECLAIM|"
"SCHED_FLAG_DL_OVERRUN|SCHED_FLAG_UTIL_CLAMP_MIN"
"|SCHED_FLAG_UTIL_CLAMP_MAX|0x80, "
"sched_nice=%d, sched_priority=%u, sched_runtime=%" PRIu64 ", "
"sched_deadline=%" PRIu64 ", sched_period=%" PRIu64 ", "
"sched_util_min=%u, sched_util_max=%u}, %u) = %s\n",
(int) bogus_pid,
attr->size,
attr->sched_policy,
attr->sched_nice,
attr->sched_priority,
attr->sched_runtime,
attr->sched_deadline,
attr->sched_period,
attr->sched_util_min,
attr->sched_util_max,
(unsigned) bogus_flags, errstr);
if (F8ILL_KULONG_SUPPORTED) {
const kernel_ulong_t ill = f8ill_ptr_to_kulong(attr);
sys_sched_getattr(0, ill, sizeof(*attr), 0);
pidns_print_leader();
printf("sched_getattr(0, %#llx, %u, 0) = %s\n",
(unsigned long long) ill, (unsigned) sizeof(*attr),
errstr);
sys_sched_setattr(0, ill, 0);
pidns_print_leader();
printf("sched_setattr(0, %#llx, 0) = %s\n",
(unsigned long long) ill, errstr);
}
attr->sched_flags = 0xcaffee90LL;
sys_sched_setattr(bogus_pid, (unsigned long) attr, bogus_flags);
pidns_print_leader();
printf("sched_setattr(%d, {size=%u, sched_flags=SCHED_FLAG_KEEP_PARAMS"
"|0xcaffee80, sched_util_min=%u, sched_util_max=%u}, %u) = %s\n",
(int) bogus_pid,
attr->size,
attr->sched_util_min,
attr->sched_util_max,
(unsigned) bogus_flags, errstr);
if (F8ILL_KULONG_SUPPORTED) {
const kernel_ulong_t ill = f8ill_ptr_to_kulong(attr);
sys_sched_getattr(0, ill, sizeof(*attr), 0);
pidns_print_leader();
printf("sched_getattr(0, %#llx, %u, 0) = %s\n",
(unsigned long long) ill, (unsigned) sizeof(*attr),
errstr);
sys_sched_setattr(0, ill, 0);
pidns_print_leader();
printf("sched_setattr(0, %#llx, 0) = %s\n",
(unsigned long long) ill, errstr);
}
pidns_print_leader();
puts("+++ exited with 0 +++");
return 0;
}
|
