1 /*
2 * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
3 * Copyright (c) 2020-2022 Huawei Device Co., Ltd. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without modification,
6 * are permitted provided that the following conditions are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright notice, this list of
9 * conditions and the following disclaimer.
10 *
11 * 2. Redistributions in binary form must reproduce the above copyright notice, this list
12 * of conditions and the following disclaimer in the documentation and/or other materials
13 * provided with the distribution.
14 *
15 * 3. Neither the name of the copyright holder nor the names of its contributors may be used
16 * to endorse or promote products derived from this software without specific prior written
17 * permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
21 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
23 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
24 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
25 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
26 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
27 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
28 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
29 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 */
31
32 #include "los_magickey.h"
33 #include "console.h"
34 #include "los_task_pri.h"
35 #include "los_process_pri.h"
36
37 #ifdef LOSCFG_ENABLE_MAGICKEY
38
39 #define MAGIC_KEY_NUM 5
40 STATIC VOID OsMagicHelp(VOID);
41 STATIC VOID OsMagicTaskShow(VOID);
42 STATIC VOID OsMagicPanic(VOID);
43 STATIC VOID OsMagicMemCheck(VOID);
44
45 STATIC MagicKeyOp g_magicMemCheckOp = {
46 .opHandler = OsMagicMemCheck,
47 .helpMsg = "Check system memory(ctrl+e) ",
48 .magicKey = 0x05 /* ctrl + e */
49 };
50
51 STATIC MagicKeyOp g_magicPanicOp = {
52 .opHandler = OsMagicPanic,
53 .helpMsg = "System panic(ctrl+p) ",
54 .magicKey = 0x10 /* ctrl + p */
55 };
56
57 STATIC MagicKeyOp g_magicTaskShowOp = {
58 .opHandler = OsMagicTaskShow,
59 .helpMsg = "Show task information(ctrl+t) ",
60 .magicKey = 0x14 /* ctrl + t */
61 };
62
63 STATIC MagicKeyOp g_magicHelpOp = {
64 .opHandler = OsMagicHelp,
65 .helpMsg = "Show all magic op key(ctrl+z) ",
66 .magicKey = 0x1a /* ctrl + z */
67 };
68
69 /*
70 * NOTICE:Suggest don't use
71 * ctrl+h/backspace=0x8,
72 * ctrl+i/tab=0x9,
73 * ctrl+m/enter=0xd,
74 * ctrl+n/shift out=0xe,
75 * ctrl+o/shift in=0xf,
76 * ctrl+[/esc=0x1b,
77 * ctrl+] used for telnet command mode;
78 */
79 STATIC MagicKeyOp *g_magicOpTable[MAGIC_KEY_NUM] = {
80 &g_magicMemCheckOp, /* ctrl + e */
81 &g_magicPanicOp, /* ctrl + p */
82 &g_magicTaskShowOp, /* ctrl + t */
83 &g_magicHelpOp, /* ctrl + z */
84 NULL
85 };
86
OsMagicHelpnull87 STATIC VOID OsMagicHelp(VOID)
88 {
89 INT32 i;
90 PRINTK("HELP: ");
91 for (i = 0; g_magicOpTable[i] != NULL; ++i) {
92 PRINTK("%s ", g_magicOpTable[i]->helpMsg);
93 }
94 PRINTK("\n");
95 return;
96 }
97
OsMagicTaskShownull98 STATIC VOID OsMagicTaskShow(VOID)
99 {
100 (VOID)OsShellCmdTskInfoGet(OS_ALL_TASK_MASK, NULL, OS_PROCESS_INFO_ALL);
101 return;
102 }
103
OsMagicPanicnull104 STATIC VOID OsMagicPanic(VOID)
105 {
106 LOS_Panic("Magic key :\n");
107 return;
108 }
109
OsMagicMemChecknull110 STATIC VOID OsMagicMemCheck(VOID)
111 {
112 if (LOS_MemIntegrityCheck(m_aucSysMem1) == LOS_OK) {
113 PrintExcInfo("system memcheck over, all passed!\n");
114 }
115 return;
116 }
117 #endif
118
CheckMagicKey(CHAR key, UINT16 consoleId)119 INT32 CheckMagicKey(CHAR key, UINT16 consoleId)
120 {
121 #ifdef LOSCFG_ENABLE_MAGICKEY
122 INT32 i;
123 STATIC UINT32 magicKeySwitch = 0;
124
125 if (key == 0x03) { /* ctrl + c */
126 KillPgrp(consoleId);
127 return 0;
128 } else if (key == 0x12) { /* ctrl + r */
129 magicKeySwitch = ~magicKeySwitch;
130 if (magicKeySwitch != 0) {
131 PrintExcInfo("Magic key on\n");
132 } else {
133 PrintExcInfo("Magic key off\n");
134 }
135 return 1;
136 }
137 if (magicKeySwitch != 0) {
138 for (i = 0; i < MAGIC_KEY_NUM; i++) {
139 if (g_magicOpTable[i] != NULL && key == g_magicOpTable[i]->magicKey) {
140 (g_magicOpTable[i])->opHandler();
141 return 1;
142 }
143 }
144 }
145 #endif
146 return 0;
147 }
148