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pppd: pass on the configured upper limit for mtu to the channel that ppp uses

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git-svn-id: svn://svn.openwrt.org/openwrt/branches/buildroot-ng/openwrt@5010 3c298f89-4303-0410-b956-a3cf2f4a3e73
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nbd 2006-10-10 12:30:14 +00:00
parent 56a341a5b9
commit dec7e982a9
1 changed files with 17 additions and 0 deletions
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17
package/ppp/patches/210-lcp_mtu_max.patch Normal file
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@ -0,0 +1,17 @@
--- ppp-2.4.3/pppd/lcp.c.old 2006-10-10 14:19:11.000000000 +0200
+++ ppp-2.4.3/pppd/lcp.c 2006-10-10 14:19:55.000000000 +0200
@@ -1891,12 +1891,12 @@
* the interface MTU is set to the lowest of that, the
* MTU we want to use, and our link MRU.
*/
- mtu = ho->neg_mru? ho->mru: PPP_MRU;
+ mtu = MIN(ho->neg_mru? ho->mru: PPP_MRU, ao->mru);
mru = go->neg_mru? MAX(wo->mru, go->mru): PPP_MRU;
#ifdef HAVE_MULTILINK
if (!(multilink && go->neg_mrru && ho->neg_mrru))
#endif /* HAVE_MULTILINK */
- netif_set_mtu(f->unit, MIN(MIN(mtu, mru), ao->mru));
+ netif_set_mtu(f->unit, MIN(mtu, mru));
ppp_send_config(f->unit, mtu,
(ho->neg_asyncmap? ho->asyncmap: 0xffffffff),
ho->neg_pcompression, ho->neg_accompression);