Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
73 lines
1.6 KiB
C
73 lines
1.6 KiB
C
// SPDX-License-Identifier: GPL-2.0
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#define _GNU_SOURCE
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#include "kselftest_harness.h"
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#include <stdio.h>
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#include <string.h>
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#include <errno.h>
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#include <sys/wait.h>
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#include <sys/syscall.h>
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#include <sys/prctl.h>
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#include "linux/ptrace.h"
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static int sys_ptrace(int request, pid_t pid, void *addr, void *data)
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{
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return syscall(SYS_ptrace, request, pid, addr, data);
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}
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TEST(get_set_sud)
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{
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struct ptrace_sud_config config;
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pid_t child;
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int ret = 0;
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int status;
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child = fork();
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ASSERT_GE(child, 0);
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if (child == 0) {
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ASSERT_EQ(0, sys_ptrace(PTRACE_TRACEME, 0, 0, 0)) {
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TH_LOG("PTRACE_TRACEME: %m");
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}
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kill(getpid(), SIGSTOP);
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_exit(1);
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}
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waitpid(child, &status, 0);
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memset(&config, 0xff, sizeof(config));
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config.mode = PR_SYS_DISPATCH_ON;
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ret = sys_ptrace(PTRACE_GET_SYSCALL_USER_DISPATCH_CONFIG, child,
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(void *)sizeof(config), &config);
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ASSERT_EQ(ret, 0);
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ASSERT_EQ(config.mode, PR_SYS_DISPATCH_OFF);
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ASSERT_EQ(config.selector, 0);
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ASSERT_EQ(config.offset, 0);
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ASSERT_EQ(config.len, 0);
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config.mode = PR_SYS_DISPATCH_ON;
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config.selector = 0;
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config.offset = 0x400000;
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config.len = 0x1000;
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ret = sys_ptrace(PTRACE_SET_SYSCALL_USER_DISPATCH_CONFIG, child,
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(void *)sizeof(config), &config);
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ASSERT_EQ(ret, 0);
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memset(&config, 1, sizeof(config));
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ret = sys_ptrace(PTRACE_GET_SYSCALL_USER_DISPATCH_CONFIG, child,
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(void *)sizeof(config), &config);
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ASSERT_EQ(ret, 0);
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ASSERT_EQ(config.mode, PR_SYS_DISPATCH_ON);
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ASSERT_EQ(config.selector, 0);
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ASSERT_EQ(config.offset, 0x400000);
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ASSERT_EQ(config.len, 0x1000);
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kill(child, SIGKILL);
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}
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TEST_HARNESS_MAIN
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