/* * Copyright (c) 2015-2017 Dmitry V. Levin * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "tests.h" #include #if defined __NR_sched_getattr && defined __NR_sched_setattr # include # include # include # include # 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) { 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; 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(0, 0, 0, 0); printf("sched_getattr(0, NULL, 0, 0) = %s\n", errstr); sys_sched_getattr(0, (unsigned long) attr, 0, 0); printf("sched_getattr(0, %p, 0, 0) = %s\n", attr, errstr); sys_sched_getattr(bogus_pid, 0, 0, 0); printf("sched_getattr(%d, NULL, 0, 0) = %s\n", (int) bogus_pid, errstr); sys_sched_getattr(-1U, (unsigned long) attr, bogus_size, bogus_flags); 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, sizeof(*attr), 0); 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"); 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) 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) { printf("sched_getattr(0, %p, 0xffffffff<<32|%u, 0) = %s\n", attr, (unsigned) sizeof(*attr), errstr); } else # endif { 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) sizeof(*attr)); } sys_sched_setattr(bogus_pid, 0, 0); printf("sched_setattr(%d, NULL, 0) = %s\n", (int) bogus_pid, errstr); attr->sched_flags |= 1; if (sys_sched_setattr(0, (unsigned long) attr, 0)) perror_msg_and_skip("sched_setattr"); 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); sys_sched_setattr(F8ILL_KULONG_MASK, (unsigned long) attr, F8ILL_KULONG_MASK); 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); *psize = attr->size; sys_sched_setattr(0, (unsigned long) psize, 0); printf("sched_setattr(0, %p, 0) = %s\n", psize, errstr); attr->size = 0; sys_sched_setattr(0, (unsigned long) attr, 0); 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); 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); 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 = 0xbadc0ded1057da7aULL; 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); 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 ", ...}, %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, (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); } puts("+++ exited with 0 +++"); return 0; } #else SKIP_MAIN_UNDEFINED("__NR_sched_getattr && __NR_sched_setattr") #endif