packages: sort network related packages into package/network/

[openwrt.git] / package / network / services / ppp / patches / 207-lcp_mtu_max.patch

diff --git a/package/network/services/ppp/patches/207-lcp_mtu_max.patch b/package/network/services/ppp/patches/207-lcp_mtu_max.patch
new file mode 100644 (file)
index 0000000..1ebcf41
--- /dev/null
+++ b/package/network/services/ppp/patches/207-lcp_mtu_max.patch
@@ -0,0 +1,25 @@
+pppd: Cap MTU to the user configured value
+
+This patchs caps the calculated MTU value in lcp.c to the user specified "mru"
+option value. Without this patch pppd would advertise a different MTU value
+compared to what is set on the local interface in some cases.
+
+Signed-off-by: Jo-Philipp Wich <jow@openwrt.org>
+
+--- a/pppd/lcp.c
++++ b/pppd/lcp.c
+@@ -1904,12 +1904,12 @@ lcp_up(f)
+      * 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);