1 /* 2 * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved. 3 * Copyright (c) 2020-2021 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 #ifndef _TELNET_DEV_H 33 #define _TELNET_DEV_H 34 35 #include "los_config.h" 36 #include "linux/wait.h" 37 38 #ifdef __cplusplus 39 #if __cplusplus 40 extern "C" { 41 #endif /* __cplusplus */ 42 #endif /* __cplusplus */ 43 44 #ifdef LOSCFG_NET_TELNET 45 46 #define TELNET "/dev/telnet" 47 48 #define FIFO_MAX 1024 49 #define TELNET_IOC_MAGIC 't' 50 #define CFG_TELNET_SET_FD _IO(TELNET_IOC_MAGIC, 1) 51 #define CFG_TELNET_EVENT_PEND CONSOLE_CMD_RD_BLOCK_TELNET 52 #define BLOCK_DISABLE 0 53 #define BLOCK_ENABLE 1 54 55 typedef struct { 56 UINT32 rxIndex; /* index for receiving user's commands */ 57 UINT32 rxOutIndex; /* index for taking out commands by a shell task to run */ 58 UINT32 fifoNum; /* unused size of the cmdBuf */ 59 UINT32 lock; 60 CHAR rxBuf[FIFO_MAX]; /* the real buffer to store user's commands */ 61 } TELNTE_FIFO_S; 62 63 typedef struct { 64 INT32 clientFd; 65 UINT32 id; 66 BOOL eventPend; 67 EVENT_CB_S eventTelnet; 68 wait_queue_head_t wait; 69 TELNTE_FIFO_S *cmdFifo; /* use a FIFO to store user's commands */ 70 } TELNET_DEV_S; 71 72 extern INT32 TelnetTx(const CHAR *buf, UINT32 len); 73 extern INT32 TelnetDevInit(INT32 fd); 74 extern INT32 TelnetDevDeinit(VOID); 75 extern INT32 TelnetedRegister(VOID); 76 extern INT32 TelnetedUnregister(VOID); 77 #endif 78 79 #ifdef __cplusplus 80 #if __cplusplus 81 } 82 #endif /* __cplusplus */ 83 #endif /* __cplusplus */ 84 85 #endif 86