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PPP, L2TP, added configurable L2TP MRU using opt.h

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This commit is contained in:
Sylvain Rochet 2015-05-01 00:49:19 +02:00
parent 29ba3df717
commit fa44cef27b
2 changed files with 13 additions and 2 deletions
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11
src/include/lwip/opt.h
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@ -2316,6 +2316,17 @@
#define PPP_MINMRU 128 /* No MRUs below this */
#endif
/**
* Default MTU and MRU for L2TP
* Default = 1500 - PPPoE(6) - PPP Protocol(2) - IPv4 header(20) - UDP Header(8)
* - L2TP Header(6) - HDLC Header(2) - PPP Protocol(2) - MPPE Header(2) - PPP Protocol(2)
*/
#if PPPOL2TP_SUPPORT
#ifndef PPPOL2TP_DEFMRU
#define PPPOL2TP_DEFMRU 1450
#endif
#endif /* PPPOL2TP_SUPPORT */
#ifndef MAXNAMELEN
#define MAXNAMELEN 256 /* max length of hostname or name for auth */
#endif

4
src/netif/ppp/pppol2tp.c
View File

@ -285,13 +285,13 @@ static err_t pppol2tp_connect(ppp_pcb *ppp, void *ctx) {
ppp_clear(ppp);
lcp_wo = &ppp->lcp_wantoptions;
lcp_wo->mru = 1500; /* FIXME: MTU depends if we support IP fragmentation or not */
lcp_wo->mru = PPPOL2TP_DEFMRU;
lcp_wo->neg_asyncmap = 0;
lcp_wo->neg_pcompression = 0;
lcp_wo->neg_accompression = 0;
lcp_ao = &ppp->lcp_allowoptions;
lcp_ao->mru = 1500; /* FIXME: MTU depends if we support IP fragmentation or not */
lcp_ao->mru = PPPOL2TP_DEFMRU;
lcp_ao->neg_asyncmap = 0;
lcp_ao->neg_pcompression = 0;
lcp_ao->neg_accompression = 0;