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更改编码为UTF-8
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更改文件编码为UTF-8
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@XieMaster
XieMaster committed Oct 10, 2020
1 parent a3ab0e6 commit d071942
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Showing 14 changed files with 393 additions and 393 deletions.
188 changes: 94 additions & 94 deletions BSP/Ethernet/Internet/dhcp.c
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Original file line number Diff line number Diff line change
Expand Up @@ -5,7 +5,7 @@
* @version V1.0
* @date 2015-02-14
* @brief DHCP Client
* @attention 使用DHCP配置IP地址需要定义
* @attention 使用DHCP配置IP地址需要定义
******************************************************************************
*/
#include <stdio.h>
Expand All @@ -22,44 +22,44 @@

DHCP_Get DHCP_GET;

uint8* SRC_MAC_ADDR = EXTERN_DHCP_MAC; /*本地MAC地址*/
uint8* GET_SN_MASK = EXTERN_DHCP_SN; /*从DHCP服务器获取到的子网掩码*/
uint8* GET_GW_IP = EXTERN_DHCP_GW; /*从DHCP服务器获取到的网关地址*/
uint8* GET_DNS_IP = EXTERN_DHCP_DNS; /*从DHCP服务器获取到的DNS服务器地址*/
uint8* DHCP_HOST_NAME = EXTERN_DHCP_NAME; /*主机名*/
uint8* GET_SIP = EXTERN_DHCP_SIP; /*从DHCP服务器获取到的本机IP*/
uint8 DHCP_SIP[4] = {0,}; /*已发现的DNS服务器地址*/
uint8 DHCP_REAL_SIP[4] = {0,}; /*从DHCP列表中选择使用的DHCP服务器*/
uint8 OLD_SIP[4]; /*最初获取到的IP地址*/
uint8* SRC_MAC_ADDR = EXTERN_DHCP_MAC; /*本地MAC地址*/
uint8* GET_SN_MASK = EXTERN_DHCP_SN; /*从DHCP服务器获取到的子网掩码*/
uint8* GET_GW_IP = EXTERN_DHCP_GW; /*从DHCP服务器获取到的网关地址*/
uint8* GET_DNS_IP = EXTERN_DHCP_DNS; /*从DHCP服务器获取到的DNS服务器地址*/
uint8* DHCP_HOST_NAME = EXTERN_DHCP_NAME; /*主机名*/
uint8* GET_SIP = EXTERN_DHCP_SIP; /*从DHCP服务器获取到的本机IP*/
uint8 DHCP_SIP[4] = {0,}; /*已发现的DNS服务器地址*/
uint8 DHCP_REAL_SIP[4] = {0,}; /*从DHCP列表中选择使用的DHCP服务器*/
uint8 OLD_SIP[4]; /*最初获取到的IP地址*/

uint8 dhcp_state = STATE_DHCP_READY; /*DHCP客户端状态*/
uint8 dhcp_retry_count = 0; /*DHCP重试次数*/
uint8 DHCP_timeout = 0; /*DHCP超时标志位*/
uint32 dhcp_lease_time; /*租约时间*/
uint32 next_dhcp_time = 0; /*DHCP超时时间*/
uint8 dhcp_state = STATE_DHCP_READY; /*DHCP客户端状态*/
uint8 dhcp_retry_count = 0; /*DHCP重试次数*/
uint8 DHCP_timeout = 0; /*DHCP超时标志位*/
uint32 dhcp_lease_time; /*租约时间*/
uint32 next_dhcp_time = 0; /*DHCP超时时间*/
uint32 dhcp_tick_cnt = 0;
uint8 DHCP_timer;

uint8 Conflict_flag = 0;
uint32 DHCP_XID = DEFAULT_XID;
uint8 EXTERN_DHCPBUF[1024];
RIP_MSG* pRIPMSG = (RIP_MSG*)EXTERN_DHCPBUF; /*DHCP消息指针*/
RIP_MSG* pRIPMSG = (RIP_MSG*)EXTERN_DHCPBUF; /*DHCP消息指针*/


void send_DHCP_DISCOVER(void); /*向DHCP服务器发送发现报文*/
void send_DHCP_REQUEST(void); /*向DHCP服务器发送请求报文*/
void send_DHCP_RELEASE_DECLINE(char msgtype); /*向DHCP服务器发送释放报文*/
void send_DHCP_DISCOVER(void); /*向DHCP服务器发送发现报文*/
void send_DHCP_REQUEST(void); /*向DHCP服务器发送请求报文*/
void send_DHCP_RELEASE_DECLINE(char msgtype); /*向DHCP服务器发送释放报文*/

void reset_DHCP_time(void); /*初始化DHCP计时器*/
void DHCP_timer_handler(void); /*DHCP计时器*/
void check_DHCP_Timeout(void); /*检查是否超时*/
uint8 check_leasedIP(void); /*检查获取的IP是否冲突*/
uint8 parseDHCPMSG(uint16 length); /*从DHCP服务器接收消息并解析*/
void reset_DHCP_time(void); /*初始化DHCP计时器*/
void DHCP_timer_handler(void); /*DHCP计时器*/
void check_DHCP_Timeout(void); /*检查是否超时*/
uint8 check_leasedIP(void); /*检查获取的IP是否冲突*/
uint8 parseDHCPMSG(uint16 length); /*从DHCP服务器接收消息并解析*/

/**
*@brief DHCP定时初始化
*@param 无
*@return 无
*@brief DHCP定时初始化
*@param 无
*@return 无
*/
void reset_DHCP_time(void)
{
Expand All @@ -70,9 +70,9 @@ void reset_DHCP_time(void)
}

/**
*@brief 发送DISCOVER信息给DHCP服务器
*@param 无
*@return 无
*@brief 发送DISCOVER信息给DHCP服务器
*@param 无
*@return 无
*/
void send_DHCP_DISCOVER(void)
{
Expand All @@ -82,7 +82,7 @@ void send_DHCP_DISCOVER(void)
uint8 host_name[12];
//*((uint32*)DHCP_SIP)=0;
//*((uint32*)DHCP_REAL_SIP)=0;
memset((void*)pRIPMSG,0,sizeof(RIP_MSG)); /*清空pRIPMSG的 sizeof(RIP_MSG) 个空间*/
memset((void*)pRIPMSG,0,sizeof(RIP_MSG)); /*清空pRIPMSG的 sizeof(RIP_MSG) 个空间*/

pRIPMSG->op = DHCP_BOOTREQUEST;
pRIPMSG->htype = DHCP_HTYPE10MB;
Expand Down Expand Up @@ -156,9 +156,9 @@ void send_DHCP_DISCOVER(void)
}

/**
*@brief 将请求消息发送到DHCP服务器
*@param 无
*@return 无
*@brief 将请求消息发送到DHCP服务器
*@param 无
*@return 无
*/
void send_DHCP_REQUEST(void)
{
Expand Down Expand Up @@ -256,9 +256,9 @@ void send_DHCP_REQUEST(void)
}

/**
*@brief 发送释放消息
*@param msgtype:是否为7
*@return 无
*@brief 发送释放消息
*@param msgtype:是否为7
*@return 无
*/
void send_DHCP_RELEASE_DECLINE(char msgtype)
{
Expand Down Expand Up @@ -335,9 +335,9 @@ void send_DHCP_RELEASE_DECLINE(char msgtype)
}

/**
*@brief 解析获得的DHCP消息
*@param length:解析消息长度
*@return 0：解析失败 其他：解析成功
*@brief 解析获得的DHCP消息
*@param length:解析消息长度
*@return 0：解析失败 其他：解析成功
*/
uint8 parseDHCPMSG(uint16 length)
{
Expand Down Expand Up @@ -493,28 +493,28 @@ uint8 parseDHCPMSG(uint16 length)
}

/**
*@brief 检查DHCP状态
*@param s: socket数
*@return 返回得到的DHCP状态
DHCP_RET_NONE: 未获取到IP地址
DHCP_RET_TIMEOUT:超时
DHCP_RET_UPDATE: 获取成功
DHCP_RET_CONFLICT:IP地址冲突
*@brief 检查DHCP状态
*@param s: socket数
*@return 返回得到的DHCP状态
DHCP_RET_NONE: 未获取到IP地址
DHCP_RET_TIMEOUT:超时
DHCP_RET_UPDATE: 获取成功
DHCP_RET_CONFLICT:IP地址冲突
*/
uint8 check_DHCP_state(SOCKET s)
{
uint16 len; /*定义一个表示接收数据大小变量*/
uint8 type; /*定义一个表示接收封包类型变量*/
uint16 len; /*定义一个表示接收数据大小变量*/
uint8 type; /*定义一个表示接收封包类型变量*/

type = 0;
if(getSn_SR(s)!=SOCK_CLOSED) /*socket处于打开状态*/
if(getSn_SR(s)!=SOCK_CLOSED) /*socket处于打开状态*/
{
if ((len = getSn_RX_RSR(s)) > 0) /*接收到数据*/
if ((len = getSn_RX_RSR(s)) > 0) /*接收到数据*/
{
type = parseDHCPMSG(len); /*解析收到的封包类型*/
type = parseDHCPMSG(len); /*解析收到的封包类型*/
}
}
else /*socket处于关闭状态，重新初始化socket*/
else /*socket处于关闭状态，重新初始化socket*/
{
if(dhcp_state == STATE_DHCP_READY)
{
Expand All @@ -523,41 +523,41 @@ uint8 check_DHCP_state(SOCKET s)
printf("state : STATE_DHCP_READY\r\n");
#endif
}
if(!socket(SOCK_DHCP,Sn_MR_UDP,DHCP_CLIENT_PORT,0x00))/*初始化socket和端口*/
if(!socket(SOCK_DHCP,Sn_MR_UDP,DHCP_CLIENT_PORT,0x00))/*初始化socket和端口*/
{
#ifdef DHCP_DEBUG
printf("Fail to create the DHCPC_SOCK(%u)\r\n",SOCK_DHCP);
#endif
return DHCP_RET_ERR; /*socket初始化错误*/
return DHCP_RET_ERR; /*socket初始化错误*/
}
}
switch ( dhcp_state )
{
case STATE_DHCP_READY: /*DHCP初始化状态*/
DHCP_timeout = 0; /*DHCP超时标志设置为1*/
reset_DHCP_time(); /*复位超时时间*/
send_DHCP_DISCOVER(); /*发送DISCOVER包*/
case STATE_DHCP_READY: /*DHCP初始化状态*/
DHCP_timeout = 0; /*DHCP超时标志设置为1*/
reset_DHCP_time(); /*复位超时时间*/
send_DHCP_DISCOVER(); /*发送DISCOVER包*/

DHCP_timer = 0; /*set_timer0(DHCP_timer_handler); */
dhcp_state = STATE_DHCP_DISCOVER; /*DHCP的DISCOVER状态*/
dhcp_state = STATE_DHCP_DISCOVER; /*DHCP的DISCOVER状态*/
break;

case STATE_DHCP_DISCOVER:
if (type == DHCP_OFFER)
{
reset_DHCP_time(); /*复位超时时间*/
send_DHCP_REQUEST(); /*发送REQUEST包*/
reset_DHCP_time(); /*复位超时时间*/
send_DHCP_REQUEST(); /*发送REQUEST包*/
dhcp_state = STATE_DHCP_REQUEST;
#ifdef DHCP_DEBUG
printf("state : STATE_DHCP_REQUEST\r\n");
#endif
}
else
check_DHCP_Timeout(); /*检查是否超时*/
check_DHCP_Timeout(); /*检查是否超时*/
break;

case STATE_DHCP_REQUEST : /*DHCP的REQUEST状态*/
if (type == DHCP_ACK) /*接收到DHCP服务器回应的off封包*/
case STATE_DHCP_REQUEST : /*DHCP的REQUEST状态*/
if (type == DHCP_ACK) /*接收到DHCP服务器回应的off封包*/
{
reset_DHCP_time();
if (check_leasedIP())
Expand All @@ -579,14 +579,14 @@ uint8 check_DHCP_state(SOCKET s)
}
else if (type == DHCP_NAK)
{
reset_DHCP_time(); /*复位超时时间*/
reset_DHCP_time(); /*复位超时时间*/
dhcp_state = STATE_DHCP_DISCOVER;
#ifdef DHCP_DEBUG
printf("state : STATE_DHCP_DISCOVER\r\n");
#endif
}
else
check_DHCP_Timeout(); /*检查是否超时*/
check_DHCP_Timeout(); /*检查是否超时*/
break;

case STATE_DHCP_LEASED :
Expand Down Expand Up @@ -650,9 +650,9 @@ uint8 check_DHCP_state(SOCKET s)
}

/**
*@brief 检查DHCP请求释放超时
*@param 无
*@return 无
*@brief 检查DHCP请求释放超时
*@param 无
*@return 无
*/
void check_DHCP_Timeout(void)
{
Expand Down Expand Up @@ -705,9 +705,9 @@ void check_DHCP_Timeout(void)
}

/**
*@brief 检查获取的IP是否冲突
*@param 无
*@return 无
*@brief 检查获取的IP是否冲突
*@param 无
*@return 无
*/
uint8 check_leasedIP(void)
{
Expand All @@ -731,9 +731,9 @@ void check_DHCP_Timeout(void)
}

/**
*@brief DHCP 定时器操作
*@param 无
*@return 无
*@brief DHCP 定时器操作
*@param 无
*@return 无
*/
void DHCP_timer_handler(void)
{
Expand All @@ -745,9 +745,9 @@ void DHCP_timer_handler(void)
}

/**
*@brief 初始化DHCP客户端
*@param 无
*@return 无
*@brief 初始化DHCP客户端
*@param 无
*@return 无
*/
void init_dhcp_client(void)
{
Expand All @@ -770,42 +770,42 @@ void init_dhcp_client(void)
#endif
}
/**
*@brief 执行DHCP Client
*@param 无
*@return 无
*@brief 执行DHCP Client
*@param 无
*@return 无
*/
void do_dhcp(void)
{
uint8 dhcpret=0;
ip_from=IP_FROM_DHCP; /*IP配置方法选择为DHCP*/
dhcp_timer_init(); /*初始化DHCP定时器*/
ip_from=IP_FROM_DHCP; /*IP配置方法选择为DHCP*/
dhcp_timer_init(); /*初始化DHCP定时器*/
if(Conflict_flag == 1)
{
init_dhcp_client(); /*初始化DHCP客户端*/
init_dhcp_client(); /*初始化DHCP客户端*/
Conflict_flag =0;
}

dhcpret = check_DHCP_state(SOCK_DHCP); /*获取DHCP服务状态*/
dhcpret = check_DHCP_state(SOCK_DHCP); /*获取DHCP服务状态*/

switch(dhcpret)
{
case DHCP_RET_NONE: /*IP地址获取不成功*/
case DHCP_RET_NONE: /*IP地址获取不成功*/
break;

case DHCP_RET_TIMEOUT: /*IP地址获取超时*/
case DHCP_RET_TIMEOUT: /*IP地址获取超时*/
break;

case DHCP_RET_UPDATE: /*成功获取到IP地址*/
case DHCP_RET_UPDATE: /*成功获取到IP地址*/
dhcp_ok=1;
set_w5500_ip(); /*将获取到的IP地址写入W5500寄存器*/
printf(" 已从DHCP服务器成功获得IP地址\r\n");
set_w5500_ip(); /*将获取到的IP地址写入W5500寄存器*/
printf(" 已从DHCP服务器成功获得IP地址\r\n");

break;

case DHCP_RET_CONFLICT: /*IP地址获取冲突*/
printf(" 从DHCP获取IP地址失败\r\n");
case DHCP_RET_CONFLICT: /*IP地址获取冲突*/
printf(" 从DHCP获取IP地址失败\r\n");
dhcp_state = STATE_DHCP_READY;
printf(" 重试中\r\n");
printf(" 重试中\r\n");
dhcp_ok=0;
break;

Expand Down
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