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gerrit-public.fairphone.software / kernel / msm-4.9 / 95e2106f46702f720b80a22b3c79be25362e02be / . / arch / um / drivers / mconsole.h
blob: 44af7379ea19c3da2cc4eb261287d8cab3ddfa16 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]1/*
2 * Copyright (C) 2001 Lennert Buytenhek (buytenh@gnu.org)
Jeff Dike8ca842c2007-10-16 01:27:08 -0700[diff] [blame]3 * Copyright (C) 2001 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]4 * Licensed under the GPL
5 */
6
7#ifndef __MCONSOLE_H__
8#define __MCONSOLE_H__
9
Richard Weinberger298e20b2015-05-31 19:50:57 +0200[diff] [blame]10#ifdef __UM_HOST__
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]11#include <stdint.h>
12#define u32 uint32_t
13#endif
14
Al Viro37185b32012-10-08 03:27:32 +0100[diff] [blame]15#include <sysdep/ptrace.h>
Jeff Dike622e6962007-03-29 01:20:32 -0700[diff] [blame]16
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]17#define MCONSOLE_MAGIC (0xcafebabe)
18#define MCONSOLE_MAX_DATA (512)
19#define MCONSOLE_VERSION 2
20
21struct mconsole_request {
22 u32 magic;
23 u32 version;
24 u32 len;
25 char data[MCONSOLE_MAX_DATA];
26};
27
28struct mconsole_reply {
29 u32 err;
30 u32 more;
31 u32 len;
32 char data[MCONSOLE_MAX_DATA];
33};
34
35struct mconsole_notify {
36 u32 magic;
Jeff Dike7b033e12006-01-06 00:19:03 -0800[diff] [blame]37 u32 version;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]38 enum { MCONSOLE_SOCKET, MCONSOLE_PANIC, MCONSOLE_HANG,
39 MCONSOLE_USER_NOTIFY } type;
40 u32 len;
41 char data[MCONSOLE_MAX_DATA];
42};
43
44struct mc_request;
45
46enum mc_context { MCONSOLE_INTR, MCONSOLE_PROC };
47
48struct mconsole_command
49{
50 char *command;
51 void (*handler)(struct mc_request *req);
52 enum mc_context context;
53};
54
55struct mc_request
56{
57 int len;
58 int as_interrupt;
59
60 int originating_fd;
Jeff Dikeda00d9a2005-06-08 15:48:01 -0700[diff] [blame]61 unsigned int originlen;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]62 unsigned char origin[128]; /* sockaddr_un */
63
64 struct mconsole_request request;
65 struct mconsole_command *cmd;
Jeff Dike77bf4402007-10-16 01:26:58 -0700[diff] [blame]66 struct uml_pt_regs regs;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]67};
68
69extern char mconsole_socket_name[];
70
71extern int mconsole_unlink_socket(void);
Jeff Dike7b033e12006-01-06 00:19:03 -0800[diff] [blame]72extern int mconsole_reply_len(struct mc_request *req, const char *reply,
73 int len, int err, int more);
74extern int mconsole_reply(struct mc_request *req, const char *str, int err,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]75 int more);
76
77extern void mconsole_version(struct mc_request *req);
78extern void mconsole_help(struct mc_request *req);
79extern void mconsole_halt(struct mc_request *req);
80extern void mconsole_reboot(struct mc_request *req);
81extern void mconsole_config(struct mc_request *req);
82extern void mconsole_remove(struct mc_request *req);
83extern void mconsole_sysrq(struct mc_request *req);
84extern void mconsole_cad(struct mc_request *req);
85extern void mconsole_stop(struct mc_request *req);
86extern void mconsole_go(struct mc_request *req);
87extern void mconsole_log(struct mc_request *req);
88extern void mconsole_proc(struct mc_request *req);
Jeff Dike3eddddc2005-09-16 19:27:46 -0700[diff] [blame]89extern void mconsole_stack(struct mc_request *req);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]90
91extern int mconsole_get_request(int fd, struct mc_request *req);
Jeff Dike7b033e12006-01-06 00:19:03 -0800[diff] [blame]92extern int mconsole_notify(char *sock_name, int type, const void *data,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]93 int len);
94extern char *mconsole_notify_socket(void);
95extern void lock_notify(void);
96extern void unlock_notify(void);
97
98#endif