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authornbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73>2012-10-10 12:32:29 +0000
committernbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73>2012-10-10 12:32:29 +0000
commit9c8997d54dc9df184bfcedeabf0b3c85cf5e6753 (patch)
tree46b83031a0da1b4458317413c00d13c252c72afa /package/network/services/ppp/patches/207-lcp_mtu_max.patch
parenteecf5b17520f6b3b6ffb45ac7dca298d93b27501 (diff)
packages: sort network related packages into package/network/
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@33688 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'package/network/services/ppp/patches/207-lcp_mtu_max.patch')
-rw-r--r--package/network/services/ppp/patches/207-lcp_mtu_max.patch25
1 files changed, 25 insertions, 0 deletions
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
index 000000000..1ebcf412f
--- /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);