2b5faa4c55
Process connector can now also detect coredumping events. Main aim of patch is get notified at start of coredumping, instead of having to wait for it to finish and then being notified through EXIT event. Could be used for instance by process-managers that want to get notified as soon as possible about process failures, and not necessarily beeing notified after coredump, which could be in the order of minutes depending on size of coredump, piping and so on. Signed-off-by: Jesper Derehag <jderehag@hotmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
130 lines
3.2 KiB
C
130 lines
3.2 KiB
C
/*
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* cn_proc.h - process events connector
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*
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* Copyright (C) Matt Helsley, IBM Corp. 2005
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* Based on cn_fork.h by Nguyen Anh Quynh and Guillaume Thouvenin
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* Copyright (C) 2005 Nguyen Anh Quynh <aquynh@gmail.com>
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* Copyright (C) 2005 Guillaume Thouvenin <guillaume.thouvenin@bull.net>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of version 2.1 of the GNU Lesser General Public License
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* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it would be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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*/
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#ifndef _UAPICN_PROC_H
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#define _UAPICN_PROC_H
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#include <linux/types.h>
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/*
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* Userspace sends this enum to register with the kernel that it is listening
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* for events on the connector.
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*/
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enum proc_cn_mcast_op {
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PROC_CN_MCAST_LISTEN = 1,
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PROC_CN_MCAST_IGNORE = 2
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};
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/*
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* From the user's point of view, the process
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* ID is the thread group ID and thread ID is the internal
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* kernel "pid". So, fields are assigned as follow:
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*
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* In user space - In kernel space
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*
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* parent process ID = parent->tgid
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* parent thread ID = parent->pid
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* child process ID = child->tgid
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* child thread ID = child->pid
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*/
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struct proc_event {
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enum what {
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/* Use successive bits so the enums can be used to record
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* sets of events as well
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*/
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PROC_EVENT_NONE = 0x00000000,
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PROC_EVENT_FORK = 0x00000001,
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PROC_EVENT_EXEC = 0x00000002,
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PROC_EVENT_UID = 0x00000004,
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PROC_EVENT_GID = 0x00000040,
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PROC_EVENT_SID = 0x00000080,
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PROC_EVENT_PTRACE = 0x00000100,
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PROC_EVENT_COMM = 0x00000200,
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/* "next" should be 0x00000400 */
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/* "last" is the last process event: exit,
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* while "next to last" is coredumping event */
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PROC_EVENT_COREDUMP = 0x40000000,
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PROC_EVENT_EXIT = 0x80000000
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} what;
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__u32 cpu;
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__u64 __attribute__((aligned(8))) timestamp_ns;
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/* Number of nano seconds since system boot */
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union { /* must be last field of proc_event struct */
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struct {
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__u32 err;
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} ack;
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struct fork_proc_event {
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__kernel_pid_t parent_pid;
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__kernel_pid_t parent_tgid;
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__kernel_pid_t child_pid;
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__kernel_pid_t child_tgid;
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} fork;
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struct exec_proc_event {
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__kernel_pid_t process_pid;
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__kernel_pid_t process_tgid;
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} exec;
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struct id_proc_event {
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__kernel_pid_t process_pid;
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__kernel_pid_t process_tgid;
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union {
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__u32 ruid; /* task uid */
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__u32 rgid; /* task gid */
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} r;
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union {
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__u32 euid;
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__u32 egid;
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} e;
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} id;
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struct sid_proc_event {
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__kernel_pid_t process_pid;
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__kernel_pid_t process_tgid;
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} sid;
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struct ptrace_proc_event {
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__kernel_pid_t process_pid;
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__kernel_pid_t process_tgid;
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__kernel_pid_t tracer_pid;
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__kernel_pid_t tracer_tgid;
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} ptrace;
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struct comm_proc_event {
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__kernel_pid_t process_pid;
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__kernel_pid_t process_tgid;
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char comm[16];
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} comm;
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struct coredump_proc_event {
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__kernel_pid_t process_pid;
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__kernel_pid_t process_tgid;
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} coredump;
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struct exit_proc_event {
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__kernel_pid_t process_pid;
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__kernel_pid_t process_tgid;
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__u32 exit_code, exit_signal;
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} exit;
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} event_data;
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};
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#endif /* _UAPICN_PROC_H */
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