213 lines
5.6 KiB
C
213 lines
5.6 KiB
C
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/*
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* airkiss.h
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*
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* Created on: 2015-1-26
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* Author: peterfan
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*/
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#ifndef AIRKISS_H_
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#define AIRKISS_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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* 定义AIRKISS_ENABLE_CRYPT为1以启用AirKiss加密功能
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*/
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#ifndef AIRKISS_ENABLE_CRYPT
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#define AIRKISS_ENABLE_CRYPT 0
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#endif
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typedef void *(*airkiss_memset_fn)(void *ptr, int value, unsigned int num);
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typedef void *(*airkiss_memcpy_fn)(void *dst, const void *src, unsigned int num);
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typedef int (*airkiss_memcmp_fn)(const void *ptr1, const void *ptr2, unsigned int num);
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typedef int (*airkiss_printf_fn)(const char *format, ...);
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/*
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* 对AirKiss库进行配置，目前仅定义了一些回调函数
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*/
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typedef struct {
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/*
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* 为尽量减少库文件体积，如下c标准库函数需要上层使用者提供
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* 其中printf可以为NULL
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*/
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airkiss_memset_fn memset;
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airkiss_memcpy_fn memcpy;
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airkiss_memcmp_fn memcmp;
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airkiss_printf_fn printf;
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} airkiss_config_t;
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/*
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* AirKiss API工作需要的结构体，必须为全局变量或者通过malloc动态分配
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*/
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typedef struct {
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int dummyap[26];
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int dummy[32];
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} airkiss_context_t;
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/*
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* AirKiss解码成功后的结果
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*/
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typedef struct {
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char *pwd; /* wifi密码，以'\0'结尾 */
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char *ssid; /* wifi ssid，以'\0'结尾 */
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unsigned char pwd_length; /* wifi密码长度 */
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unsigned char ssid_length; /* wifi ssid长度 */
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unsigned char random; /* 随机值，根据AirKiss协议，当wifi连接成功后，需要通过udp向10000端口广播这个随机值，这样AirKiss发送端（微信客户端或者AirKissDebugger）就能知道AirKiss已配置成功 */
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unsigned char reserved; /* 保留值 */
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} airkiss_result_t;
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/*
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* airkiss_recv()正常情况下的返回值
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*/
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typedef enum {
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/* 解码正常，无需特殊处理，继续调用airkiss_recv()直到解码成功 */
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AIRKISS_STATUS_CONTINUE = 0,
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/* wifi信道已经锁定，上层应该立即停止切换信道 */
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AIRKISS_STATUS_CHANNEL_LOCKED = 1,
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/* 解码成功，可以调用airkiss_get_result()取得结果 */
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AIRKISS_STATUS_COMPLETE = 2
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} airkiss_status_t;
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#if AIRKISS_ENABLE_CRYPT
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/*
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* 设置解密key，最长可以为128bit，若传入的key不足128bit，则默认用0填充
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*
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* 返回值
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* < 0：出错，通常是参数错误
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* 0：成功
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*/
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int airkiss_set_key(airkiss_context_t *context, const unsigned char *key, unsigned int length);
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#endif
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/*
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* 获取AirKiss库版本信息
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*/
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const char *airkiss_version(void);
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/*
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* 初始化AirKiss库，如要复用context，可以多次调用
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*
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* 返回值
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* < 0：出错，通常是参数错误
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* 0：成功
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*/
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int airkiss_init(airkiss_context_t *context, const airkiss_config_t *config);
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/*
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* 开启WiFi Promiscuous Mode后，将收到的包传给airkiss_recv以进行解码
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*
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* 参数说明
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* frame：802.11 frame mac header(must contain at least first 24 bytes)
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* length：total frame length
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*
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* 返回值
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* < 0：出错，通常是参数错误
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* >= 0：成功，请参考airkiss_status_t
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*/
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int airkiss_recv(airkiss_context_t *context, const void *frame, unsigned short length);
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/*
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* 当airkiss_recv()返回AIRKISS_STATUS_COMPLETE后，调用此函数来获取AirKiss解码结果
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*
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* 返回值
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* < 0：出错，解码状态还不是AIRKISS_STATUS_COMPLETE
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* 0：成功
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*/
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int airkiss_get_result(airkiss_context_t *context, airkiss_result_t *result);
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/*
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* 上层切换信道以后，可以调用一下本接口清缓存，降低锁定错信道的概率，注意调用的逻辑是在airkiss_init之后
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*
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* 返回值
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* < 0：出错，通常是参数错误
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* 0：成功
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*/
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int airkiss_change_channel(airkiss_context_t *context);
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/*
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*
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* 以上是实现智能配置网络的相关API，以下是微信内网发现相关API
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*
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*/
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/*
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* airkiss_lan_recv()的返回值
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*/
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typedef enum {
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/* 提供的数据缓冲区长度不足 */
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AIRKISS_LAN_ERR_OVERFLOW = -5,
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/* 当前版本不支持的指令类型 */
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AIRKISS_LAN_ERR_CMD = -4,
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/* 打包数据出错 */
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AIRKISS_LAN_ERR_PAKE = -3,
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/* 函数传递参数出错 */
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AIRKISS_LAN_ERR_PARA = -2,
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/* 报文数据错误 */
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AIRKISS_LAN_ERR_PKG = -1,
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/* 报文格式正确，但是不需要设备处理的数据包 */
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AIRKISS_LAN_CONTINUE = 0,
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/* 接收到发现设备请求数据包 */
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AIRKISS_LAN_SSDP_REQ = 1,
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/* 数据包打包完成 */
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AIRKISS_LAN_PAKE_READY = 2
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} airkiss_lan_ret_t;
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typedef enum {
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AIRKISS_LAN_SSDP_REQ_CMD = 0x1,
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AIRKISS_LAN_SSDP_RESP_CMD = 0x1001,
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AIRKISS_LAN_SSDP_NOTIFY_CMD = 0x1002
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} airkiss_lan_cmdid_t;
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/*
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* 设备进入内网发现模式后，将收到的包传给airkiss_lan_recv以进行解析
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*
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* 参数说明
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* body：802.11 frame mac header(must contain at least first 24 bytes)
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* length：total frame length
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* config：AirKiss回调函数
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*
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* 返回值
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* < 0：出错，请参考airkiss_lan_ret_t，通常是报文数据出错
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* >= 0：成功，请参考airkiss_lan_ret_t
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*/
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int airkiss_lan_recv(const void *body, unsigned short length, const airkiss_config_t *config);
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/*
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* 设备要发送内网协议包时，调用本接口完成数据包打包
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*
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* 参数说明
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* body：802.11 frame mac header(must contain at least first 24 bytes)
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* length：total frame length
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* config：AirKiss回调函数
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*
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* 返回值
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* < 0：出错，请参考airkiss_lan_ret_t，通常是报文数据出错
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* >= 0：成功，请参考airkiss_lan_ret_t
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*/
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int airkiss_lan_pack(airkiss_lan_cmdid_t ak_lan_cmdid, void *appid, void *deviceid, void *_datain, unsigned short inlength, void *_dataout, unsigned short *outlength, const airkiss_config_t *config);
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#ifdef __cplusplus
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}
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#endif
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#endif /* AIRKISS_H_ */
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