linux/security/tomoyo/environ.c

// SPDX-License-Identifier: GPL-2.0
/*
 * security/tomoyo/environ.c
 *
 * Copyright (C) 2005-2011  NTT DATA CORPORATION
 */

#include "common.h"

/**
 * tomoyo_check_env_acl - Check permission for environment variable's name.
 *
 * @r:   Pointer to "struct tomoyo_request_info".
 * @ptr: Pointer to "struct tomoyo_acl_info".
 *
 * Returns true if granted, false otherwise.
 */
static bool tomoyo_check_env_acl(struct tomoyo_request_info *r,
				 const struct tomoyo_acl_info *ptr)
{ … }

/**
 * tomoyo_audit_env_log - Audit environment variable name log.
 *
 * @r: Pointer to "struct tomoyo_request_info".
 *
 * Returns 0 on success, negative value otherwise.
 */
static int tomoyo_audit_env_log(struct tomoyo_request_info *r)
{ … }

/**
 * tomoyo_env_perm - Check permission for environment variable's name.
 *
 * @r:   Pointer to "struct tomoyo_request_info".
 * @env: The name of environment variable.
 *
 * Returns 0 on success, negative value otherwise.
 *
 * Caller holds tomoyo_read_lock().
 */
int tomoyo_env_perm(struct tomoyo_request_info *r, const char *env)
{ … }

/**
 * tomoyo_same_env_acl - Check for duplicated "struct tomoyo_env_acl" entry.
 *
 * @a: Pointer to "struct tomoyo_acl_info".
 * @b: Pointer to "struct tomoyo_acl_info".
 *
 * Returns true if @a == @b, false otherwise.
 */
static bool tomoyo_same_env_acl(const struct tomoyo_acl_info *a,
				const struct tomoyo_acl_info *b)
{ … }

/**
 * tomoyo_write_env - Write "struct tomoyo_env_acl" list.
 *
 * @param: Pointer to "struct tomoyo_acl_param".
 *
 * Returns 0 on success, negative value otherwise.
 *
 * Caller holds tomoyo_read_lock().
 */
static int tomoyo_write_env(struct tomoyo_acl_param *param)
{ … }

/**
 * tomoyo_write_misc - Update environment variable list.
 *
 * @param: Pointer to "struct tomoyo_acl_param".
 *
 * Returns 0 on success, negative value otherwise.
 */
int tomoyo_write_misc(struct tomoyo_acl_param *param)
{ … }