LwIP
PBUF_LINK_ENCAPSULATION_HLEN is only used within LwIP.
 
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CodeScopeSTM32 Libraries and SamplesLwIPPBUF_LINK_ENCAPSULATION_HLEN

PBUF_LINK_ENCAPSULATION_HLEN macro

PBUF_LINK_ENCAPSULATION_HLEN: the number of bytes that should be allocated for an additional encapsulation header before ethernet headers (e.g. 802.11)

Syntax

#define PBUF_LINK_ENCAPSULATION_HLEN 0

References

LocationText
opt.h:1539
#define PBUF_LINK_ENCAPSULATION_HLEN 0
icmp.c:157
if (pbuf_add_header(p, hlen + PBUF_LINK_HLEN + PBUF_LINK_ENCAPSULATION_HLEN)) {
icmp.c:198
if (pbuf_remove_header(p, hlen + PBUF_LINK_HLEN + PBUF_LINK_ENCAPSULATION_HLEN)) {
init.c:314
#if !MEMP_MEM_MALLOC && PBUF_POOL_SIZE && (PBUF_POOL_BUFSIZE <= (PBUF_LINK_ENCAPSULATION_HLEN + PBUF_LINK_HLEN + PBUF_IP_HLEN + PBUF_TRANSPORT_HLEN))
init.c:317
#if !MEMP_MEM_MALLOC && PBUF_POOL_SIZE && (TCP_WND > (PBUF_POOL_SIZE * (PBUF_POOL_BUFSIZE - (PBUF_LINK_ENCAPSULATION_HLEN + PBUF_LINK_HLEN + PBUF_IP_HLEN + PBUF_TRANSPORT_HLEN))))
pbuf.h:93
PBUF_TRANSPORT = PBUF_LINK_ENCAPSULATION_HLEN + PBUF_LINK_HLEN + PBUF_IP_HLEN + PBUF_TRANSPORT_HLEN,
pbuf.h:97
PBUF_IP = PBUF_LINK_ENCAPSULATION_HLEN + PBUF_LINK_HLEN + PBUF_IP_HLEN,
pbuf.h:102
PBUF_LINK = PBUF_LINK_ENCAPSULATION_HLEN + PBUF_LINK_HLEN,
pbuf.h:108
PBUF_RAW_TX = PBUF_LINK_ENCAPSULATION_HLEN,