mirror of https://github.com/sudo-project/sudo.git
130 lines
4.1 KiB
C
130 lines
4.1 KiB
C
/*
|
|
* SPDX-License-Identifier: ISC
|
|
*
|
|
* Copyright (c) 2019-2020 Todd C. Miller <Todd.Miller@sudo.ws>
|
|
*
|
|
* Permission to use, copy, modify, and distribute this software for any
|
|
* purpose with or without fee is hereby granted, provided that the above
|
|
* copyright notice and this permission notice appear in all copies.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
|
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
|
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
|
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
|
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
|
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
|
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
*/
|
|
|
|
/*
|
|
* This is an open source non-commercial project. Dear PVS-Studio, please check it.
|
|
* PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com
|
|
*/
|
|
|
|
#include <config.h>
|
|
#include <string.h>
|
|
|
|
#include <ctype.h>
|
|
#include <stdlib.h>
|
|
|
|
#include <sudo_gettext.h>
|
|
#include <sudo_compat.h>
|
|
#include "sudo_python_debug.h"
|
|
#include <sudo_queue.h>
|
|
#include <sudo_conf.h>
|
|
#include <sudo_fatal.h>
|
|
|
|
|
|
static int python_debug_instance = SUDO_DEBUG_INSTANCE_INITIALIZER;
|
|
static unsigned int python_debug_refcnt;
|
|
|
|
static const char *const python_subsystem_names[] = {
|
|
"py_calls", // logs c -> py calls
|
|
"c_calls", // logs py -> c calls
|
|
"load", // logs python plugin loading / unloading
|
|
"sudo_cb", // logs sudo callback calls
|
|
"internal", // logs internal functions of the language wrapper plugin
|
|
"plugin", // logs whatever log the python module would like to log through sudo.debug API
|
|
NULL
|
|
};
|
|
|
|
#define NUM_SUBSYSTEMS sizeof(python_subsystem_names) / sizeof(*python_subsystem_names) - 1
|
|
|
|
/* Subsystem IDs assigned at registration time. */
|
|
unsigned int python_subsystem_ids[NUM_SUBSYSTEMS];
|
|
|
|
/*
|
|
* Parse the "filename flags,..." debug_flags entry and insert a new
|
|
* sudo_debug_file struct into debug_files.
|
|
*/
|
|
bool
|
|
python_debug_parse_flags(struct sudo_conf_debug_file_list *debug_files,
|
|
const char *entry)
|
|
{
|
|
/* Already initialized? */
|
|
if (python_debug_instance != SUDO_DEBUG_INSTANCE_INITIALIZER)
|
|
return true;
|
|
|
|
return sudo_debug_parse_flags(debug_files, entry) != -1;
|
|
}
|
|
|
|
/*
|
|
* Register the specified debug files and program with the
|
|
* debug subsystem, freeing the debug list when done.
|
|
* Sets the active debug instance as a side effect.
|
|
*/
|
|
bool
|
|
python_debug_register(const char *program,
|
|
struct sudo_conf_debug_file_list *debug_files)
|
|
{
|
|
int instance = python_debug_instance;
|
|
struct sudo_debug_file *debug_file, *debug_next;
|
|
|
|
/* Setup debugging if indicated. */
|
|
if (debug_files != NULL && !TAILQ_EMPTY(debug_files)) {
|
|
if (program != NULL) {
|
|
instance = sudo_debug_register(program, python_subsystem_names,
|
|
python_subsystem_ids, debug_files, -1);
|
|
}
|
|
TAILQ_FOREACH_SAFE(debug_file, debug_files, entries, debug_next) {
|
|
TAILQ_REMOVE(debug_files, debug_file, entries);
|
|
free(debug_file->debug_file);
|
|
free(debug_file->debug_flags);
|
|
free(debug_file);
|
|
}
|
|
}
|
|
|
|
switch (instance) {
|
|
case SUDO_DEBUG_INSTANCE_ERROR:
|
|
return false;
|
|
case SUDO_DEBUG_INSTANCE_INITIALIZER:
|
|
/* Nothing to do */
|
|
break;
|
|
default:
|
|
/* New debug instance or additional reference on existing one. */
|
|
python_debug_instance = instance;
|
|
sudo_debug_set_active_instance(python_debug_instance);
|
|
python_debug_refcnt++;
|
|
break;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/*
|
|
* Deregister python_debug_instance if it is registered.
|
|
*/
|
|
void
|
|
python_debug_deregister(void)
|
|
{
|
|
debug_decl(python_debug_deregister, PYTHON_DEBUG_INTERNAL);
|
|
|
|
if (python_debug_refcnt != 0) {
|
|
sudo_debug_exit(__func__, __FILE__, __LINE__, sudo_debug_subsys);
|
|
if (--python_debug_refcnt == 0) {
|
|
if (sudo_debug_deregister(python_debug_instance) < 1)
|
|
python_debug_instance = SUDO_DEBUG_INSTANCE_INITIALIZER;
|
|
}
|
|
}
|
|
}
|