mirror of
https://github.com/open5gs/open5gs.git
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799103257b
* [AMF] Fix UE context transfer when only NRF is client If UE context transfer is initiated and the new AMF does not get the old AMF from NRF or no UE context is retrieved from the old AMF, we do not want to reject UE registration. Send identity request instead. Test "transfer-error-case" is added into the commit. * [tests] Unite tests for UE context transfer All tests for UE context transfer with different configs are placed into test folder transfer. * [tests] Make two binaries for UE context transfer tests For each test config a different test binary is created.
453 lines
12 KiB
C
453 lines
12 KiB
C
/*
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* Copyright (C) 2019-2020 by Sukchan Lee <acetcom@gmail.com>
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*
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* The code is stolen from process.h
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* https://github.com/sheredom/process.h
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*
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* This is free and unencumbered software released into the public domain.
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*
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* Anyone is free to copy, modify, publish, use, compile, sell, or
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* distribute this software, either in source code form or as a compiled
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* binary, for any purpose, commercial or non-commercial, and by any
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* means.
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*
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* In jurisdictions that recognize copyright laws, the author or authors
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* of this software dedicate any and all copyright interest in the
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* software to the public domain. We make this dedication for the benefit
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* of the public at large and to the detriment of our heirs and
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* successors. We intend this dedication to be an overt act of
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* relinquishment in perpetuity of all present and future rights to this
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* software under copyright law.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* For more information, please refer to <http://unlicense.org/>
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*/
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#include "core-config-private.h"
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#if HAVE_SYS_WAIT_H
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#include <sys/wait.h>
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#endif
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#if HAVE_FCNTL_H
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#include <fcntl.h>
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#endif
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#if HAVE_SIGNAL_H
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#include <signal.h>
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#endif
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#if HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#include "ogs-core.h"
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int ogs_proc_create(const char *const commandLine[], int options,
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ogs_proc_t *const out_process)
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{
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#if defined(_WIN32)
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struct process_process_information_s {
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void *hProcess;
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void *hThread;
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unsigned long dwProcessId;
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unsigned long dwThreadId;
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};
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ogs_proc_tecurity_attributes_s {
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unsigned long nLength;
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void *lpSecurityDescriptor;
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int bInheritHandle;
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};
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ogs_proc_ttartup_info_s {
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unsigned long cb;
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char *lpReserved;
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char *lpDesktop;
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char *lpTitle;
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unsigned long dwX;
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unsigned long dwY;
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unsigned long dwXSize;
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unsigned long dwYSize;
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unsigned long dwXCountChars;
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unsigned long dwYCountChars;
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unsigned long dwFillAttribute;
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unsigned long dwFlags;
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unsigned short wShowWindow;
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unsigned short cbReserved2;
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unsigned char *lpReserved2;
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void *hStdInput;
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void *hStdOutput;
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void *hStdError;
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};
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int fd;
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void *rd, *wr;
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char *commandLineCombined;
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size_t len;
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int i, j;
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const unsigned long startFUseStdHandles = 0x00000100;
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const unsigned long handleFlagInherit = 0x00000001;
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struct process_process_information_s processInfo;
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ogs_proc_tecurity_attributes_s saAttr = {sizeof(saAttr), 0, 1};
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char *environment = 0;
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ogs_proc_ttartup_info_s startInfo = { 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0 };
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ogs_assert(out_process);
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startInfo.cb = sizeof(startInfo);
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startInfo.dwFlags = startFUseStdHandles;
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if (ogs_proc_option_inherit_environment !=
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(options & ogs_proc_option_inherit_environment)) {
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environment = "\0\0";
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}
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if (!CreatePipe(&rd, &wr, (LPSECURITY_ATTRIBUTES)&saAttr, 0)) {
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return OGS_ERROR;
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}
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if (!SetHandleInformation(wr, handleFlagInherit, 0)) {
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return OGS_ERROR;
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}
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fd = _open_osfhandle((intptr_t)wr, 0);
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if (-1 != fd) {
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out_process->stdin_file = _fdopen(fd, "wb");
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if (0 == out_process->stdin_file) {
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return OGS_ERROR;
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}
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}
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startInfo.hStdInput = rd;
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if (!CreatePipe(&rd, &wr, (LPSECURITY_ATTRIBUTES)&saAttr, 0)) {
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return OGS_ERROR;
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}
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if (!SetHandleInformation(rd, handleFlagInherit, 0)) {
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return OGS_ERROR;
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}
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fd = _open_osfhandle((intptr_t)rd, 0);
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if (-1 != fd) {
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out_process->stdout_file = _fdopen(fd, "rb");
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if (0 == out_process->stdout_file) {
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return OGS_ERROR;
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}
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}
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startInfo.hStdOutput = wr;
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if (ogs_proc_option_combined_stdout_stderr ==
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(options & ogs_proc_option_combined_stdout_stderr)) {
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out_process->stderr_file = out_process->stdout_file;
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startInfo.hStdError = startInfo.hStdOutput;
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} else {
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if (!CreatePipe(&rd, &wr, (LPSECURITY_ATTRIBUTES)&saAttr, 0)) {
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return OGS_ERROR;
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}
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if (!SetHandleInformation(rd, handleFlagInherit, 0)) {
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return OGS_ERROR;
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}
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fd = _open_osfhandle((intptr_t)rd, 0);
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if (-1 != fd) {
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out_process->stderr_file = _fdopen(fd, "rb");
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if (0 == out_process->stderr_file) {
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return OGS_ERROR;
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}
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}
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startInfo.hStdError = wr;
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}
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// Combine commandLine together into a single string
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len = 0;
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for (i = 0; commandLine[i]; i++) {
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// For the ' ' between items and trailing '\0'
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len++;
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for (j = 0; '\0' != commandLine[i][j]; j++) {
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len++;
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}
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}
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commandLineCombined = (char *)_alloca(len);
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if (!commandLineCombined) {
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return OGS_ERROR;
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}
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// Gonna re-use len to store the write index into commandLineCombined
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len = 0;
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for (i = 0; commandLine[i]; i++) {
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if (0 != i) {
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commandLineCombined[len++] = ' ';
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}
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for (j = 0; '\0' != commandLine[i][j]; j++) {
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commandLineCombined[len++] = commandLine[i][j];
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}
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}
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commandLineCombined[len] = '\0';
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if (!CreateProcessA(NULL,
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commandLineCombined, // command line
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NULL, // process security attributes
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NULL, // primary thread security attributes
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1, // handles are inherited
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0, // creation flags
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environment, // use parent's environment
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NULL, // use parent's current directory
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(LPSTARTUPINFOA)&startInfo, // STARTUPINFO pointer
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(LPPROCESS_INFORMATION)&processInfo)) {
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return OGS_ERROR;
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}
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out_process->hProcess = processInfo.hProcess;
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out_process->dwProcessId = processInfo.dwProcessId;
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// We don't need the handle of the primary thread in the called process.
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CloseHandle(processInfo.hThread);
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return OGS_OK;
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#else
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int stdinfd[2];
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int stdoutfd[2];
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int stderrfd[2];
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pid_t child;
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ogs_assert(out_process);
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if (0 != pipe(stdinfd)) {
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return OGS_ERROR;
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}
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if (0 != pipe(stdoutfd)) {
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return OGS_ERROR;
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}
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if (ogs_proc_option_combined_stdout_stderr !=
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(options & ogs_proc_option_combined_stdout_stderr)) {
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if (0 != pipe(stderrfd)) {
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return OGS_ERROR;
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}
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}
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child = fork();
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if (-1 == child) {
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return OGS_ERROR;
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}
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if (0 == child) {
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// Close the stdin write end
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close(stdinfd[1]);
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// Map the read end to stdin
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dup2(stdinfd[0], STDIN_FILENO);
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// Close the stdout read end
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close(stdoutfd[0]);
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// Map the write end to stdout
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dup2(stdoutfd[1], STDOUT_FILENO);
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if (ogs_proc_option_combined_stdout_stderr ==
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(options & ogs_proc_option_combined_stdout_stderr)) {
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dup2(STDOUT_FILENO, STDERR_FILENO);
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} else {
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// Close the stderr read end
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close(stderrfd[0]);
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// Map the write end to stdout
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dup2(stderrfd[1], STDERR_FILENO);
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}
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if (ogs_proc_option_inherit_environment !=
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(options & ogs_proc_option_inherit_environment)) {
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char *const environment[1] = {0};
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exit(execve(commandLine[0], (char *const *)commandLine, environment));
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} else {
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exit(execvp(commandLine[0], (char *const *)commandLine));
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}
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} else {
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// Close the stdin read end
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close(stdinfd[0]);
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// Store the stdin write end
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out_process->stdin_file = fdopen(stdinfd[1], "wb");
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// Close the stdout write end
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close(stdoutfd[1]);
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// Store the stdout read end
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out_process->stdout_file = fdopen(stdoutfd[0], "rb");
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if (ogs_proc_option_combined_stdout_stderr ==
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(options & ogs_proc_option_combined_stdout_stderr)) {
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out_process->stderr_file = out_process->stdout_file;
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} else {
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// Close the stderr write end
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close(stderrfd[1]);
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// Store the stderr read end
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out_process->stderr_file = fdopen(stderrfd[0], "rb");
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}
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// Store the child's pid
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out_process->child = child;
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return OGS_OK;
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}
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#endif
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}
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FILE *ogs_proc_stdin(const ogs_proc_t *const process)
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{
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ogs_assert(process);
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return process->stdin_file;
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}
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FILE *ogs_proc_stdout(const ogs_proc_t *const process)
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{
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ogs_assert(process);
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return process->stdout_file;
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}
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FILE *ogs_proc_stderr(const ogs_proc_t *const process)
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{
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ogs_assert(process);
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if (process->stdout_file != process->stderr_file) {
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return process->stderr_file;
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} else {
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return OGS_OK;
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}
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}
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int ogs_proc_join(ogs_proc_t *const process, int *const out_return_code)
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{
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#if defined(_WIN32)
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const unsigned long infinite = 0xFFFFFFFF;
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ogs_assert(process);
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ogs_assert(out_return_code);
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if (0 != process->stdin_file) {
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fclose(process->stdin_file);
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process->stdin_file = 0;
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}
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WaitForSingleObject(process->hProcess, infinite);
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if (out_return_code) {
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if (!GetExitCodeProcess(process->hProcess,
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(unsigned long *)out_return_code)) {
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return OGS_ERROR;
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}
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}
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return OGS_OK;
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#else
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int status;
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ogs_assert(process);
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ogs_assert(out_return_code);
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if (0 != process->stdin_file) {
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fclose(process->stdin_file);
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process->stdin_file = 0;
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}
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if (process->child != waitpid(process->child, &status, 0)) {
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process->child = 0;
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ogs_fatal("waitpid failed: %d", status);
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return OGS_ERROR;
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}
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process->child = 0;
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if (process->nf_name)
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ogs_free(process->nf_name);
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if (out_return_code) {
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if (WIFEXITED(status)) {
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*out_return_code = WEXITSTATUS(status);
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} else {
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*out_return_code = 0;
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}
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}
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return OGS_OK;
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#endif
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}
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int ogs_proc_destroy(ogs_proc_t *const process)
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{
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ogs_assert(process);
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if (0 != process->stdin_file) {
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fclose(process->stdin_file);
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}
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fclose(process->stdout_file);
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if (process->stdout_file != process->stderr_file) {
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fclose(process->stderr_file);
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}
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#if defined(_WIN32)
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CloseHandle(process->hProcess);
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#endif
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return OGS_OK;
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}
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int ogs_proc_terminate(ogs_proc_t *const process)
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{
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ogs_assert(process);
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#if defined(_WIN32)
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// `GenerateConsoleCtrlEvent` can only be called on a process group. To call
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// `GenerateConsoleCtrlEvent` on a single child process it has to be put in
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// its own process group (which we did when starting the child process).
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if (!GenerateConsoleCtrlEvent(CTRL_BREAK_EVENT, process->dwProcessId)) {
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return OGS_ERROR;
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}
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#else
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if (process->child) {
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if (kill(process->child, SIGTERM) == -1) {
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return OGS_ERROR;
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}
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}
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#endif
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return OGS_OK;
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}
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int ogs_proc_kill(ogs_proc_t *const process)
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{
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ogs_assert(process);
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#if defined(_WIN32)
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// We use 137 as the exit status because it is the same exit status as a
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// process that is stopped with the `SIGKILL` signal on POSIX systems.
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if (!TerminateProcess(process->hProcess, 137)) {
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return OGS_ERROR;
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}
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#else
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if (kill(process->child, SIGKILL) == -1) {
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return OGS_ERROR;
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}
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#endif
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return OGS_OK;
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}
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