162306a36Sopenharmony_ci// SPDX-License-Identifier: GPL-2.0 262306a36Sopenharmony_ci#define _GNU_SOURCE 362306a36Sopenharmony_ci#include "../kselftest_harness.h" 462306a36Sopenharmony_ci#include <stdio.h> 562306a36Sopenharmony_ci#include <string.h> 662306a36Sopenharmony_ci#include <errno.h> 762306a36Sopenharmony_ci#include <sys/wait.h> 862306a36Sopenharmony_ci#include <sys/syscall.h> 962306a36Sopenharmony_ci#include <sys/prctl.h> 1062306a36Sopenharmony_ci 1162306a36Sopenharmony_ci#include "linux/ptrace.h" 1262306a36Sopenharmony_ci 1362306a36Sopenharmony_cistatic int sys_ptrace(int request, pid_t pid, void *addr, void *data) 1462306a36Sopenharmony_ci{ 1562306a36Sopenharmony_ci return syscall(SYS_ptrace, request, pid, addr, data); 1662306a36Sopenharmony_ci} 1762306a36Sopenharmony_ci 1862306a36Sopenharmony_ciTEST(get_set_sud) 1962306a36Sopenharmony_ci{ 2062306a36Sopenharmony_ci struct ptrace_sud_config config; 2162306a36Sopenharmony_ci pid_t child; 2262306a36Sopenharmony_ci int ret = 0; 2362306a36Sopenharmony_ci int status; 2462306a36Sopenharmony_ci 2562306a36Sopenharmony_ci child = fork(); 2662306a36Sopenharmony_ci ASSERT_GE(child, 0); 2762306a36Sopenharmony_ci if (child == 0) { 2862306a36Sopenharmony_ci ASSERT_EQ(0, sys_ptrace(PTRACE_TRACEME, 0, 0, 0)) { 2962306a36Sopenharmony_ci TH_LOG("PTRACE_TRACEME: %m"); 3062306a36Sopenharmony_ci } 3162306a36Sopenharmony_ci kill(getpid(), SIGSTOP); 3262306a36Sopenharmony_ci _exit(1); 3362306a36Sopenharmony_ci } 3462306a36Sopenharmony_ci 3562306a36Sopenharmony_ci waitpid(child, &status, 0); 3662306a36Sopenharmony_ci 3762306a36Sopenharmony_ci memset(&config, 0xff, sizeof(config)); 3862306a36Sopenharmony_ci config.mode = PR_SYS_DISPATCH_ON; 3962306a36Sopenharmony_ci 4062306a36Sopenharmony_ci ret = sys_ptrace(PTRACE_GET_SYSCALL_USER_DISPATCH_CONFIG, child, 4162306a36Sopenharmony_ci (void *)sizeof(config), &config); 4262306a36Sopenharmony_ci 4362306a36Sopenharmony_ci ASSERT_EQ(ret, 0); 4462306a36Sopenharmony_ci ASSERT_EQ(config.mode, PR_SYS_DISPATCH_OFF); 4562306a36Sopenharmony_ci ASSERT_EQ(config.selector, 0); 4662306a36Sopenharmony_ci ASSERT_EQ(config.offset, 0); 4762306a36Sopenharmony_ci ASSERT_EQ(config.len, 0); 4862306a36Sopenharmony_ci 4962306a36Sopenharmony_ci config.mode = PR_SYS_DISPATCH_ON; 5062306a36Sopenharmony_ci config.selector = 0; 5162306a36Sopenharmony_ci config.offset = 0x400000; 5262306a36Sopenharmony_ci config.len = 0x1000; 5362306a36Sopenharmony_ci 5462306a36Sopenharmony_ci ret = sys_ptrace(PTRACE_SET_SYSCALL_USER_DISPATCH_CONFIG, child, 5562306a36Sopenharmony_ci (void *)sizeof(config), &config); 5662306a36Sopenharmony_ci 5762306a36Sopenharmony_ci ASSERT_EQ(ret, 0); 5862306a36Sopenharmony_ci 5962306a36Sopenharmony_ci memset(&config, 1, sizeof(config)); 6062306a36Sopenharmony_ci ret = sys_ptrace(PTRACE_GET_SYSCALL_USER_DISPATCH_CONFIG, child, 6162306a36Sopenharmony_ci (void *)sizeof(config), &config); 6262306a36Sopenharmony_ci 6362306a36Sopenharmony_ci ASSERT_EQ(ret, 0); 6462306a36Sopenharmony_ci ASSERT_EQ(config.mode, PR_SYS_DISPATCH_ON); 6562306a36Sopenharmony_ci ASSERT_EQ(config.selector, 0); 6662306a36Sopenharmony_ci ASSERT_EQ(config.offset, 0x400000); 6762306a36Sopenharmony_ci ASSERT_EQ(config.len, 0x1000); 6862306a36Sopenharmony_ci 6962306a36Sopenharmony_ci kill(child, SIGKILL); 7062306a36Sopenharmony_ci} 7162306a36Sopenharmony_ci 7262306a36Sopenharmony_ciTEST_HARNESS_MAIN 73