| David Howells | 607ca46 | 2012-10-13 10:46:48 +0100 | [diff] [blame^] | 1 | /* |
| 2 | * cn_proc.h - process events connector |
| 3 | * |
| 4 | * Copyright (C) Matt Helsley, IBM Corp. 2005 |
| 5 | * Based on cn_fork.h by Nguyen Anh Quynh and Guillaume Thouvenin |
| 6 | * Copyright (C) 2005 Nguyen Anh Quynh <aquynh@gmail.com> |
| 7 | * Copyright (C) 2005 Guillaume Thouvenin <guillaume.thouvenin@bull.net> |
| 8 | * |
| 9 | * This program is free software; you can redistribute it and/or modify it |
| 10 | * under the terms of version 2.1 of the GNU Lesser General Public License |
| 11 | * as published by the Free Software Foundation. |
| 12 | * |
| 13 | * This program is distributed in the hope that it would be useful, but |
| 14 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
| 16 | */ |
| 17 | |
| 18 | #ifndef _UAPICN_PROC_H |
| 19 | #define _UAPICN_PROC_H |
| 20 | |
| 21 | #include <linux/types.h> |
| 22 | |
| 23 | /* |
| 24 | * Userspace sends this enum to register with the kernel that it is listening |
| 25 | * for events on the connector. |
| 26 | */ |
| 27 | enum proc_cn_mcast_op { |
| 28 | PROC_CN_MCAST_LISTEN = 1, |
| 29 | PROC_CN_MCAST_IGNORE = 2 |
| 30 | }; |
| 31 | |
| 32 | /* |
| 33 | * From the user's point of view, the process |
| 34 | * ID is the thread group ID and thread ID is the internal |
| 35 | * kernel "pid". So, fields are assigned as follow: |
| 36 | * |
| 37 | * In user space - In kernel space |
| 38 | * |
| 39 | * parent process ID = parent->tgid |
| 40 | * parent thread ID = parent->pid |
| 41 | * child process ID = child->tgid |
| 42 | * child thread ID = child->pid |
| 43 | */ |
| 44 | |
| 45 | struct proc_event { |
| 46 | enum what { |
| 47 | /* Use successive bits so the enums can be used to record |
| 48 | * sets of events as well |
| 49 | */ |
| 50 | PROC_EVENT_NONE = 0x00000000, |
| 51 | PROC_EVENT_FORK = 0x00000001, |
| 52 | PROC_EVENT_EXEC = 0x00000002, |
| 53 | PROC_EVENT_UID = 0x00000004, |
| 54 | PROC_EVENT_GID = 0x00000040, |
| 55 | PROC_EVENT_SID = 0x00000080, |
| 56 | PROC_EVENT_PTRACE = 0x00000100, |
| 57 | PROC_EVENT_COMM = 0x00000200, |
| 58 | /* "next" should be 0x00000400 */ |
| 59 | /* "last" is the last process event: exit */ |
| 60 | PROC_EVENT_EXIT = 0x80000000 |
| 61 | } what; |
| 62 | __u32 cpu; |
| 63 | __u64 __attribute__((aligned(8))) timestamp_ns; |
| 64 | /* Number of nano seconds since system boot */ |
| 65 | union { /* must be last field of proc_event struct */ |
| 66 | struct { |
| 67 | __u32 err; |
| 68 | } ack; |
| 69 | |
| 70 | struct fork_proc_event { |
| 71 | __kernel_pid_t parent_pid; |
| 72 | __kernel_pid_t parent_tgid; |
| 73 | __kernel_pid_t child_pid; |
| 74 | __kernel_pid_t child_tgid; |
| 75 | } fork; |
| 76 | |
| 77 | struct exec_proc_event { |
| 78 | __kernel_pid_t process_pid; |
| 79 | __kernel_pid_t process_tgid; |
| 80 | } exec; |
| 81 | |
| 82 | struct id_proc_event { |
| 83 | __kernel_pid_t process_pid; |
| 84 | __kernel_pid_t process_tgid; |
| 85 | union { |
| 86 | __u32 ruid; /* task uid */ |
| 87 | __u32 rgid; /* task gid */ |
| 88 | } r; |
| 89 | union { |
| 90 | __u32 euid; |
| 91 | __u32 egid; |
| 92 | } e; |
| 93 | } id; |
| 94 | |
| 95 | struct sid_proc_event { |
| 96 | __kernel_pid_t process_pid; |
| 97 | __kernel_pid_t process_tgid; |
| 98 | } sid; |
| 99 | |
| 100 | struct ptrace_proc_event { |
| 101 | __kernel_pid_t process_pid; |
| 102 | __kernel_pid_t process_tgid; |
| 103 | __kernel_pid_t tracer_pid; |
| 104 | __kernel_pid_t tracer_tgid; |
| 105 | } ptrace; |
| 106 | |
| 107 | struct comm_proc_event { |
| 108 | __kernel_pid_t process_pid; |
| 109 | __kernel_pid_t process_tgid; |
| 110 | char comm[16]; |
| 111 | } comm; |
| 112 | |
| 113 | struct exit_proc_event { |
| 114 | __kernel_pid_t process_pid; |
| 115 | __kernel_pid_t process_tgid; |
| 116 | __u32 exit_code, exit_signal; |
| 117 | } exit; |
| 118 | } event_data; |
| 119 | }; |
| 120 | |
| 121 | #endif /* _UAPICN_PROC_H */ |