64 lines
1.2 KiB
C
64 lines
1.2 KiB
C
#include <string.h>
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#include "lwapp.h"
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#include "lwapp_cisco.h"
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int lw_addelem(uint8_t*dst, uint8_t type, uint8_t *msgelem, uint16_t len)
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{
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*dst = type;
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*((uint16_t*)(dst+1)) = htons(len);
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memcpy(dst,msgelem,len);
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return len+3;
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}
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int lw_addelem_vendor_specific(uint8_t *dst,uint32_t vendor_id,uint16_t elem_id, uint8_t *value, int len)
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{
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lw_put_dword(dst+3,vendor_id);
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lw_put_word(dst+7,elem_id);
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memcpy(dst+9,value,len);
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int l = len+9;
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*dst=LW_ELEM_VENDOR_SPECIFIC;
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lw_put_word(dst+1,l);
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return l;
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}
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/**
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* Add the vendor specific elem Cisco Padding
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* @param dst destination
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*/
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int lw_addelem_cisco_padding(uint8_t *dst, int len)
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{
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lw_put_dword(dst+3,LW_VENDOR_CISCO);
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lw_put_word(dst+7,LW_CISCO_PATH_MTU);
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lw_put_word(dst+9,len);
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memset(dst+11,0,len);
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return lw_put_elem_hdr(dst,LW_ELEM_VENDOR_SPECIFIC,11+len);
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}
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/*
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int lw_put_cisco_path_mtu(uint8_t *dst, uint16_t max, uint16_t padding)
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{
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lw_put_dword(dst,LW_VENDOR_CISCO);
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lw_put_word(dst+4,LW_ELEM_CISCO_PATH_MTU);
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lw_put_word(dst+6,max);
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lw_put_word(dst+8,padding+4);
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memset(dst+10,0,padding);
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return padding+10;
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}
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*/
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/*
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int lw_addelem_cisco_path_mtu(uint8_t *dst,uint16_t max, uint16_t padding)
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{
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lw_put_cisco_path_mtu(dst+3,max,padding);
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}
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*/
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