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authorJo-Philipp Wich <jow@openwrt.org>2010-11-30 01:52:51 +0000
committerJo-Philipp Wich <jow@openwrt.org>2010-11-30 01:52:51 +0000
commit2fe5c1d12470049c95b2c9c7f6dc22ddbc343b9c (patch)
tree0cb98f29164e7e2f0f2b7b369d16a5164d6d1c1a /target/linux/generic/patches-2.6.32
parentca829e805baccb4e9549ed18c1dd622cdefa8bc6 (diff)
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backport two changes from kernel.org: 65e9b62d4503849b10bedfc29bff0473760cc597 ipv6: add special mode accept_ra=2 to accept RA while configured as router
c3bccac2fa76f1619dfe4fb7b9bee69de7f066d8 ipv6: add special mode forwarding=2 to send RS while configured as router SVN-Revision: 24195
Diffstat (limited to 'target/linux/generic/patches-2.6.32')
-rw-r--r--target/linux/generic/patches-2.6.32/300-ipv6_accept_ra_when_forwarding.patch41
-rw-r--r--target/linux/generic/patches-2.6.32/301-ipv6_send_rs_when_forwarding.patch12
2 files changed, 53 insertions, 0 deletions
diff --git a/target/linux/generic/patches-2.6.32/300-ipv6_accept_ra_when_forwarding.patch b/target/linux/generic/patches-2.6.32/300-ipv6_accept_ra_when_forwarding.patch
new file mode 100644
index 0000000000..e9c95cf9dc
--- /dev/null
+++ b/target/linux/generic/patches-2.6.32/300-ipv6_accept_ra_when_forwarding.patch
@@ -0,0 +1,41 @@
+--- a/net/ipv6/ndisc.c
++++ b/net/ipv6/ndisc.c
+@@ -1105,6 +1105,18 @@ errout:
+ rtnl_set_sk_err(net, RTNLGRP_ND_USEROPT, err);
+ }
+
++static inline int accept_ra(struct inet6_dev *in6_dev)
++{
++ /*
++ * If forwarding is enabled, RA are not accepted unless the special
++ * hybrid mode (accept_ra=2) is enabled.
++ */
++ if (in6_dev->cnf.forwarding && in6_dev->cnf.accept_ra < 2)
++ return 0;
++
++ return in6_dev->cnf.accept_ra;
++}
++
+ static void ndisc_router_discovery(struct sk_buff *skb)
+ {
+ struct ra_msg *ra_msg = (struct ra_msg *)skb_transport_header(skb);
+@@ -1158,8 +1170,7 @@ static void ndisc_router_discovery(struc
+ return;
+ }
+
+- /* skip route and link configuration on routers */
+- if (in6_dev->cnf.forwarding || !in6_dev->cnf.accept_ra)
++ if (!accept_ra(in6_dev))
+ goto skip_linkparms;
+
+ #ifdef CONFIG_IPV6_NDISC_NODETYPE
+@@ -1309,8 +1320,7 @@ skip_linkparms:
+ NEIGH_UPDATE_F_ISROUTER);
+ }
+
+- /* skip route and link configuration on routers */
+- if (in6_dev->cnf.forwarding || !in6_dev->cnf.accept_ra)
++ if (!accept_ra(in6_dev))
+ goto out;
+
+ #ifdef CONFIG_IPV6_ROUTE_INFO
diff --git a/target/linux/generic/patches-2.6.32/301-ipv6_send_rs_when_forwarding.patch b/target/linux/generic/patches-2.6.32/301-ipv6_send_rs_when_forwarding.patch
new file mode 100644
index 0000000000..fab7f89f49
--- /dev/null
+++ b/target/linux/generic/patches-2.6.32/301-ipv6_send_rs_when_forwarding.patch
@@ -0,0 +1,12 @@
+--- a/net/ipv6/addrconf.c
++++ b/net/ipv6/addrconf.c
+@@ -2888,7 +2888,8 @@ static void addrconf_dad_completed(struc
+ start sending router solicitations.
+ */
+
+- if (ifp->idev->cnf.forwarding == 0 &&
++ if ((ifp->idev->cnf.forwarding == 0 ||
++ ifp->idev->cnf.forwarding == 2) &&
+ ifp->idev->cnf.rtr_solicits > 0 &&
+ (dev->flags&IFF_LOOPBACK) == 0 &&
+ (ipv6_addr_type(&ifp->addr) & IPV6_ADDR_LINKLOCAL)) {