98 lines
2.3 KiB
C
98 lines
2.3 KiB
C
/*
|
|
* Copyright 2012, Samsung Telecommunications of America
|
|
* Copyright (C) 2014 The Android Open Source Project
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*
|
|
* Written by William Roberts <w.roberts@sta.samsung.com>
|
|
*/
|
|
|
|
#ifndef _LIBAUDIT_H_
|
|
#define _LIBAUDIT_H_
|
|
|
|
#include <stdint.h>
|
|
#include <sys/cdefs.h>
|
|
#include <sys/socket.h>
|
|
#include <sys/types.h>
|
|
|
|
#include <linux/netlink.h>
|
|
#include <linux/audit.h>
|
|
|
|
__BEGIN_DECLS
|
|
|
|
#define MAX_AUDIT_MESSAGE_LENGTH 8970
|
|
|
|
typedef enum {
|
|
GET_REPLY_BLOCKING=0,
|
|
GET_REPLY_NONBLOCKING
|
|
} reply_t;
|
|
|
|
/* type == AUDIT_SIGNAL_INFO */
|
|
struct audit_sig_info {
|
|
uid_t uid;
|
|
pid_t pid;
|
|
char ctx[0];
|
|
};
|
|
|
|
struct audit_message {
|
|
struct nlmsghdr nlh;
|
|
char data[MAX_AUDIT_MESSAGE_LENGTH];
|
|
};
|
|
|
|
/**
|
|
* Opens a connection to the Audit netlink socket
|
|
* @return
|
|
* A valid fd on success or < 0 on error with errno set.
|
|
* Returns the same errors as man 2 socket.
|
|
*/
|
|
extern int audit_open(void);
|
|
|
|
/**
|
|
* Closes the fd returned from audit_open()
|
|
* @param fd
|
|
* The fd to close
|
|
*/
|
|
extern void audit_close(int fd);
|
|
|
|
/**
|
|
*
|
|
* @param fd
|
|
* The fd returned by a call to audit_open()
|
|
* @param rep
|
|
* The response struct to store the response in.
|
|
* @param block
|
|
* Whether or not to block on IO
|
|
* @param peek
|
|
* Whether or not we are to remove the message from
|
|
* the queue when we do a read on the netlink socket.
|
|
* @return
|
|
* This function returns 0 on success, else -errno.
|
|
*/
|
|
extern int audit_get_reply(int fd, struct audit_message *rep, reply_t block,
|
|
int peek);
|
|
|
|
/**
|
|
* Sets a pid to recieve audit netlink events from the kernel
|
|
* @param fd
|
|
* The fd returned by a call to audit_open()
|
|
* @param pid
|
|
* The pid whom to set as the reciever of audit messages
|
|
* @return
|
|
* This function returns 0 on success, -errno on error.
|
|
*/
|
|
extern int audit_setup(int fd, uint32_t pid);
|
|
|
|
__END_DECLS
|
|
|
|
#endif
|