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@ -11,7 +11,7 @@
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//! <2012/12/20> V1.1.0
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//! 1. Optimize code
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//! 2. Add reg_dhcp_cbfunc()
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//! 3. Add DHCP_stop()
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//! 3. Add DHCP_stop()
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//! 4. Integrate check_DHCP_state() & DHCP_run() to DHCP_run()
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//! 5. Don't care system endian
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//! 6. Add comments
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@ -22,30 +22,30 @@
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//!
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//! Copyright (c) 2013, WIZnet Co., LTD.
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//! All rights reserved.
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//!
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//! Redistribution and use in source and binary forms, with or without
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//! modification, are permitted provided that the following conditions
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//! are met:
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//!
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//! * Redistributions of source code must retain the above copyright
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//! notice, this list of conditions and the following disclaimer.
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//!
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//! Redistribution and use in source and binary forms, with or without
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//! modification, are permitted provided that the following conditions
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//! are met:
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//!
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//! * Redistributions of source code must retain the above copyright
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//! notice, this list of conditions and the following disclaimer.
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//! * Redistributions in binary form must reproduce the above copyright
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//! notice, this list of conditions and the following disclaimer in the
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//! documentation and/or other materials provided with the distribution.
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//! * Neither the name of the <ORGANIZATION> nor the names of its
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//! contributors may be used to endorse or promote products derived
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//! from this software without specific prior written permission.
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//!
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//! documentation and/or other materials provided with the distribution.
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//! * Neither the name of the <ORGANIZATION> nor the names of its
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//! contributors may be used to endorse or promote products derived
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//! from this software without specific prior written permission.
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//!
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//! THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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//! AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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//! AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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//! IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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//! ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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//! LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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//! CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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//! ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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//! LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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//! CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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//! SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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//! INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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//! CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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//! ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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//! INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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//! CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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//! ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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//! THE POSSIBILITY OF SUCH DAMAGE.
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//
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//*****************************************************************************
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@ -59,7 +59,7 @@
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#ifdef _DHCP_DEBUG_
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#include <stdio.h>
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#endif
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#endif
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/* DHCP state machine. */
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#define STATE_DHCP_INIT 0 ///< Initialize
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@ -70,7 +70,7 @@
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#define STATE_DHCP_RELEASE 5 ///< No use
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#define STATE_DHCP_STOP 6 ///< Stop processing DHCP
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#define DHCP_FLAGSBROADCAST 0x8000 ///< The broadcast value of flags in @ref RIP_MSG
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#define DHCP_FLAGSBROADCAST 0x8000 ///< The broadcast value of flags in @ref RIP_MSG
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#define DHCP_FLAGSUNICAST 0x0000 ///< The unicast value of flags in @ref RIP_MSG
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/* DHCP message OP code */
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@ -99,7 +99,7 @@
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#define OPT_SIZE 312 /// Max OPT size of @ref RIP_MSG
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#define RIP_MSG_SIZE (236+OPT_SIZE) /// Max size of @ref RIP_MSG
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/*
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/*
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* @brief DHCP option and value (cf. RFC1533)
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*/
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enum
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@ -171,7 +171,7 @@ enum
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/*
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* @brief DHCP message format
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*/
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*/
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typedef struct {
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uint8_t op; ///< @ref DHCP_BOOTREQUEST or @ref DHCP_BOOTREPLY
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uint8_t htype; ///< @ref DHCP_HTYPE10MB or @ref DHCP_HTYPE100MB
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@ -182,7 +182,7 @@ typedef struct {
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uint16_t flags; ///< @ref DHCP_FLAGSBROADCAST or @ref DHCP_FLAGSUNICAST
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uint8_t ciaddr[4]; ///< @ref Request IP to DHCP sever
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uint8_t yiaddr[4]; ///< @ref Offered IP from DHCP server
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uint8_t siaddr[4]; ///< No use
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uint8_t siaddr[4]; ///< No use
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uint8_t giaddr[4]; ///< No use
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uint8_t chaddr[16]; ///< DHCP client 6bytes MAC address. Others is filled to zero
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uint8_t sname[64]; ///< No use
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@ -205,7 +205,7 @@ uint8_t DHCP_allocated_dns[4] = {0, }; // DNS address from DHCP
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int8_t dhcp_state = STATE_DHCP_INIT; // DHCP state
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int8_t dhcp_retry_count = 0;
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int8_t dhcp_retry_count = 0;
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uint32_t dhcp_lease_time = INFINITE_LEASETIME;
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volatile uint32_t dhcp_tick_1s = 0; // unit 1 second
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@ -215,7 +215,7 @@ uint32_t DHCP_XID; // Any number
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RIP_MSG* pDHCPMSG; // Buffer pointer for DHCP processing
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uint8_t HOST_NAME[] = DCHP_HOST_NAME;
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uint8_t HOST_NAME[] = DCHP_HOST_NAME;
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uint8_t DHCP_CHADDR[6]; // DHCP Client MAC address.
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@ -306,9 +306,9 @@ void makeDHCPMSG(void)
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*(ptmp+0) = (uint8_t)((DHCP_XID & 0xFF000000) >> 24);
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*(ptmp+1) = (uint8_t)((DHCP_XID & 0x00FF0000) >> 16);
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*(ptmp+2) = (uint8_t)((DHCP_XID & 0x0000FF00) >> 8);
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*(ptmp+3) = (uint8_t)((DHCP_XID & 0x000000FF) >> 0);
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*(ptmp+3) = (uint8_t)((DHCP_XID & 0x000000FF) >> 0);
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pDHCPMSG->secs = DHCP_SECS;
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ptmp = (uint8_t*)(&pDHCPMSG->flags);
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ptmp = (uint8_t*)(&pDHCPMSG->flags);
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*(ptmp+0) = (uint8_t)((DHCP_FLAGSBROADCAST & 0xFF00) >> 8);
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*(ptmp+1) = (uint8_t)((DHCP_FLAGSBROADCAST & 0x00FF) >> 0);
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@ -356,16 +356,16 @@ void send_DHCP_DISCOVER(void)
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uint16_t i;
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uint8_t ip[4];
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uint16_t k = 0;
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makeDHCPMSG();
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k = 4; // because MAGIC_COOKIE already made by makeDHCPMSG()
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// Option Request Param
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pDHCPMSG->OPT[k++] = dhcpMessageType;
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pDHCPMSG->OPT[k++] = 0x01;
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pDHCPMSG->OPT[k++] = DHCP_DISCOVER;
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// Client identifier
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pDHCPMSG->OPT[k++] = dhcpClientIdentifier;
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pDHCPMSG->OPT[k++] = 0x07;
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@ -376,10 +376,10 @@ void send_DHCP_DISCOVER(void)
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pDHCPMSG->OPT[k++] = DHCP_CHADDR[3];
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pDHCPMSG->OPT[k++] = DHCP_CHADDR[4];
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pDHCPMSG->OPT[k++] = DHCP_CHADDR[5];
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// host name
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pDHCPMSG->OPT[k++] = hostName;
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pDHCPMSG->OPT[k++] = 0; // fill zero length of hostname
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pDHCPMSG->OPT[k++] = 0; // fill zero length of hostname
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for(i = 0 ; HOST_NAME[i] != 0; i++)
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pDHCPMSG->OPT[k++] = HOST_NAME[i];
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pDHCPMSG->OPT[k++] = DHCP_CHADDR[3];
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@ -432,18 +432,18 @@ void send_DHCP_REQUEST(void)
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ip[0] = DHCP_SIP[0];
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ip[1] = DHCP_SIP[1];
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ip[2] = DHCP_SIP[2];
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ip[3] = DHCP_SIP[3];
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ip[3] = DHCP_SIP[3];
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}
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else
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{
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ip[0] = 255;
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ip[1] = 255;
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ip[2] = 255;
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ip[3] = 255;
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ip[3] = 255;
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}
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k = 4; // because MAGIC_COOKIE already made by makeDHCPMSG()
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// Option Request Param.
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pDHCPMSG->OPT[k++] = dhcpMessageType;
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pDHCPMSG->OPT[k++] = 0x01;
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@ -467,7 +467,7 @@ void send_DHCP_REQUEST(void)
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pDHCPMSG->OPT[k++] = DHCP_allocated_ip[1];
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pDHCPMSG->OPT[k++] = DHCP_allocated_ip[2];
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pDHCPMSG->OPT[k++] = DHCP_allocated_ip[3];
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pDHCPMSG->OPT[k++] = dhcpServerIdentifier;
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pDHCPMSG->OPT[k++] = 0x04;
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pDHCPMSG->OPT[k++] = DHCP_SIP[0];
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@ -485,7 +485,7 @@ void send_DHCP_REQUEST(void)
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pDHCPMSG->OPT[k++] = DHCP_CHADDR[4];
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pDHCPMSG->OPT[k++] = DHCP_CHADDR[5];
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pDHCPMSG->OPT[k - (i+3+1)] = i+3; // length of hostname
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pDHCPMSG->OPT[k++] = dhcpParamRequest;
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pDHCPMSG->OPT[k++] = 0x08;
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pDHCPMSG->OPT[k++] = subnetMask;
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@ -503,7 +503,7 @@ void send_DHCP_REQUEST(void)
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#ifdef _DHCP_DEBUG_
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printf("> Send DHCP_REQUEST\r\n");
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#endif
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WIZCHIP_EXPORT(sendto)(DHCP_SOCKET, (uint8_t *)pDHCPMSG, RIP_MSG_SIZE, ip, DHCP_SERVER_PORT);
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}
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@ -514,11 +514,11 @@ void send_DHCP_DECLINE(void)
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int i;
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uint8_t ip[4];
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uint16_t k = 0;
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makeDHCPMSG();
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k = 4; // because MAGIC_COOKIE already made by makeDHCPMSG()
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*((uint8_t*)(&pDHCPMSG->flags)) = ((DHCP_FLAGSUNICAST & 0xFF00)>> 8);
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*((uint8_t*)(&pDHCPMSG->flags)+1) = (DHCP_FLAGSUNICAST & 0x00FF);
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@ -577,15 +577,15 @@ int8_t parseDHCPMSG(void)
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uint8_t * p;
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uint8_t * e;
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uint8_t type;
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uint8_t type = 0;
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uint8_t opt_len;
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if((len = getSn_RX_RSR(DHCP_SOCKET)) > 0)
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{
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len = WIZCHIP_EXPORT(recvfrom)(DHCP_SOCKET, (uint8_t *)pDHCPMSG, len, svr_addr, &svr_port);
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#ifdef _DHCP_DEBUG_
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#ifdef _DHCP_DEBUG_
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printf("DHCP message : %d.%d.%d.%d(%d) %d received. \r\n",svr_addr[0],svr_addr[1],svr_addr[2], svr_addr[3],svr_port, len);
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#endif
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#endif
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}
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else return 0;
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if (svr_port == DHCP_SERVER_PORT) {
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@ -624,7 +624,7 @@ int8_t parseDHCPMSG(void)
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break;
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case routersOnSubnet :
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p++;
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opt_len = *p++;
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opt_len = *p++;
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DHCP_allocated_gw[0] = *p++;
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DHCP_allocated_gw[1] = *p++;
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DHCP_allocated_gw[2] = *p++;
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@ -632,8 +632,8 @@ int8_t parseDHCPMSG(void)
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p = p + (opt_len - 4);
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break;
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case dns :
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p++;
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opt_len = *p++;
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p++;
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opt_len = *p++;
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DHCP_allocated_dns[0] = *p++;
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DHCP_allocated_dns[1] = *p++;
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DHCP_allocated_dns[2] = *p++;
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@ -647,7 +647,7 @@ int8_t parseDHCPMSG(void)
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dhcp_lease_time = (dhcp_lease_time << 8) + *p++;
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dhcp_lease_time = (dhcp_lease_time << 8) + *p++;
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dhcp_lease_time = (dhcp_lease_time << 8) + *p++;
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#ifdef _DHCP_DEBUG_
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#ifdef _DHCP_DEBUG_
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dhcp_lease_time = 10;
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#endif
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break;
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@ -740,7 +740,7 @@ uint8_t DHCP_run(void)
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case STATE_DHCP_LEASED :
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ret = DHCP_IP_LEASED;
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if ((dhcp_lease_time != INFINITE_LEASETIME) && ((dhcp_lease_time/2) < dhcp_tick_1s)) {
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#ifdef _DHCP_DEBUG_
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printf("> Maintains the IP address \r\n");
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#endif
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@ -750,7 +750,7 @@ uint8_t DHCP_run(void)
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OLD_allocated_ip[1] = DHCP_allocated_ip[1];
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OLD_allocated_ip[2] = DHCP_allocated_ip[2];
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OLD_allocated_ip[3] = DHCP_allocated_ip[3];
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DHCP_XID++;
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send_DHCP_REQUEST();
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@ -765,21 +765,21 @@ uint8_t DHCP_run(void)
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ret = DHCP_IP_LEASED;
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if (type == DHCP_ACK) {
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dhcp_retry_count = 0;
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if (OLD_allocated_ip[0] != DHCP_allocated_ip[0] ||
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if (OLD_allocated_ip[0] != DHCP_allocated_ip[0] ||
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OLD_allocated_ip[1] != DHCP_allocated_ip[1] ||
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OLD_allocated_ip[2] != DHCP_allocated_ip[2] ||
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OLD_allocated_ip[3] != DHCP_allocated_ip[3])
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OLD_allocated_ip[3] != DHCP_allocated_ip[3])
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{
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ret = DHCP_IP_CHANGED;
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dhcp_ip_update();
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#ifdef _DHCP_DEBUG_
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printf(">IP changed.\r\n");
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#endif
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}
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#ifdef _DHCP_DEBUG_
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else printf(">IP is continued.\r\n");
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#endif
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#endif
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reset_DHCP_timeout();
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dhcp_state = STATE_DHCP_LEASED;
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} else if (type == DHCP_NAK) {
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@ -809,7 +809,7 @@ void DHCP_stop(void)
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uint8_t check_DHCP_timeout(void)
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{
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uint8_t ret = DHCP_RUNNING;
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if (dhcp_retry_count < MAX_DHCP_RETRY) {
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if (dhcp_tick_next < dhcp_tick_1s) {
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@ -818,7 +818,7 @@ uint8_t check_DHCP_timeout(void)
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// printf("<<timeout>> state : STATE_DHCP_DISCOVER\r\n");
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send_DHCP_DISCOVER();
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break;
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case STATE_DHCP_REQUEST :
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// printf("<<timeout>> state : STATE_DHCP_REQUEST\r\n");
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@ -827,10 +827,10 @@ uint8_t check_DHCP_timeout(void)
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case STATE_DHCP_REREQUEST :
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// printf("<<timeout>> state : STATE_DHCP_REREQUEST\r\n");
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send_DHCP_REQUEST();
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break;
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default :
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break;
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}
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@ -892,7 +892,7 @@ int8_t check_DHCP_leasedIP(void)
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return 0;
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}
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}
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}
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void DHCP_init(uint8_t s, DHCP_INIT_BUFFER_TYPE* buf)
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{
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@ -903,11 +903,11 @@ void DHCP_init(uint8_t s, DHCP_INIT_BUFFER_TYPE* buf)
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// assign temporary mac address, you should be set SHAR before call this function.
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DHCP_CHADDR[0] = 0x00;
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DHCP_CHADDR[1] = 0x08;
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DHCP_CHADDR[2] = 0xdc;
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DHCP_CHADDR[2] = 0xdc;
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DHCP_CHADDR[3] = 0x00;
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DHCP_CHADDR[4] = 0x00;
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DHCP_CHADDR[5] = 0x00;
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setSHAR(DHCP_CHADDR);
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DHCP_CHADDR[5] = 0x00;
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setSHAR(DHCP_CHADDR);
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}
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DHCP_SOCKET = s; // SOCK_DHCP
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@ -941,7 +941,7 @@ void getIPfromDHCP(uint8_t* ip)
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{
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ip[0] = DHCP_allocated_ip[0];
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ip[1] = DHCP_allocated_ip[1];
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ip[2] = DHCP_allocated_ip[2];
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ip[2] = DHCP_allocated_ip[2];
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ip[3] = DHCP_allocated_ip[3];
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}
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@ -950,7 +950,7 @@ void getGWfromDHCP(uint8_t* ip)
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ip[0] =DHCP_allocated_gw[0];
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ip[1] =DHCP_allocated_gw[1];
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ip[2] =DHCP_allocated_gw[2];
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ip[3] =DHCP_allocated_gw[3];
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ip[3] =DHCP_allocated_gw[3];
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}
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void getSNfromDHCP(uint8_t* ip)
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@ -958,7 +958,7 @@ void getSNfromDHCP(uint8_t* ip)
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ip[0] = DHCP_allocated_sn[0];
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ip[1] = DHCP_allocated_sn[1];
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ip[2] = DHCP_allocated_sn[2];
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ip[3] = DHCP_allocated_sn[3];
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ip[3] = DHCP_allocated_sn[3];
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}
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void getDNSfromDHCP(uint8_t* ip)
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@ -966,14 +966,10 @@ void getDNSfromDHCP(uint8_t* ip)
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ip[0] = DHCP_allocated_dns[0];
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ip[1] = DHCP_allocated_dns[1];
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ip[2] = DHCP_allocated_dns[2];
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ip[3] = DHCP_allocated_dns[3];
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ip[3] = DHCP_allocated_dns[3];
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}
|
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|
uint32_t getDHCPLeasetime(void)
|
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|
|
{
|
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|
|
return dhcp_lease_time;
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|
|
}
|
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