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[kernel] backport two changes from kernel.org:

Browse Source 
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


git-svn-id: svn://svn.openwrt.org/openwrt/trunk@24195 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
jow 2010-11-30 01:52:51 +00:00
parent 293671d952
commit 291a485ace
14 changed files with 349 additions and 0 deletions
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30
target/linux/generic/patches-2.6.30/300-ipv6_accept_ra_when_forwarding.patch Normal file
View File

@ -0,0 +1,30 @@
--- 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);
@@ -1150,7 +1162,7 @@ static void ndisc_router_discovery(struc
skb->dev->name);
return;
}
- if (in6_dev->cnf.forwarding || !in6_dev->cnf.accept_ra) {
+ if (!accept_ra(in6_dev)) {
in6_dev_put(in6_dev);
return;
}

12
target/linux/generic/patches-2.6.30/301-ipv6_send_rs_when_forwarding.patch Normal file
View File

@ -0,0 +1,12 @@
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -2839,7 +2839,8 @@ 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)) {

30
target/linux/generic/patches-2.6.31/300-ipv6_accept_ra_when_forwarding.patch Normal file
View File

@ -0,0 +1,30 @@
--- a/net/ipv6/ndisc.c
+++ b/net/ipv6/ndisc.c
@@ -1106,6 +1106,18 @@ 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);
@@ -1151,7 +1163,7 @@ static void ndisc_router_discovery(struc
skb->dev->name);
return;
}
- if (in6_dev->cnf.forwarding || !in6_dev->cnf.accept_ra) {
+ if (!accept_ra(in6_dev)) {
in6_dev_put(in6_dev);
return;
}

12
target/linux/generic/patches-2.6.31/301-ipv6_send_rs_when_forwarding.patch Normal file
View File

@ -0,0 +1,12 @@
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -2864,7 +2864,8 @@ 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)) {

41
target/linux/generic/patches-2.6.32/300-ipv6_accept_ra_when_forwarding.patch Normal file
View File

@ -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

12
target/linux/generic/patches-2.6.32/301-ipv6_send_rs_when_forwarding.patch Normal file
View File

@ -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)) {

41
target/linux/generic/patches-2.6.33/300-ipv6_accept_ra_when_forwarding.patch Normal file
View File

@ -0,0 +1,41 @@
--- a/net/ipv6/ndisc.c
+++ b/net/ipv6/ndisc.c
@@ -1106,6 +1106,18 @@ 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);
@@ -1159,8 +1171,7 @@ 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
@@ -1310,8 +1321,7 @@ 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

12
target/linux/generic/patches-2.6.33/301-ipv6_send_rs_when_forwarding.patch Normal file
View File

@ -0,0 +1,12 @@
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -2884,7 +2884,8 @@ 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)) {

41
target/linux/generic/patches-2.6.34/300-ipv6_accept_ra_when_forwarding.patch Normal file
View File

@ -0,0 +1,41 @@
--- a/net/ipv6/ndisc.c
+++ b/net/ipv6/ndisc.c
@@ -1107,6 +1107,18 @@ 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);
@@ -1160,8 +1172,7 @@ 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
@@ -1311,8 +1322,7 @@ 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

12
target/linux/generic/patches-2.6.34/301-ipv6_send_rs_when_forwarding.patch Normal file
View File

@ -0,0 +1,12 @@
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -2924,7 +2924,8 @@ 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)) {

41
target/linux/generic/patches-2.6.35/300-ipv6_accept_ra_when_forwarding.patch Normal file
View File

@ -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

12
target/linux/generic/patches-2.6.35/301-ipv6_send_rs_when_forwarding.patch Normal file
View File

@ -0,0 +1,12 @@
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -2961,7 +2961,8 @@ 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)) {

41
target/linux/generic/patches-2.6.36/300-ipv6_accept_ra_when_forwarding.patch Normal file
View File

@ -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

12
target/linux/generic/patches-2.6.36/301-ipv6_send_rs_when_forwarding.patch Normal file
View File

@ -0,0 +1,12 @@
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -2964,7 +2964,8 @@ 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)) {