diff options
Diffstat (limited to 'recipes/linux/linux-omap-2.6.37/linus/0064-ipv4-route.c-respect-prefsrc-for-local-routes.patch')
| -rw-r--r-- | recipes/linux/linux-omap-2.6.37/linus/0064-ipv4-route.c-respect-prefsrc-for-local-routes.patch | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/recipes/linux/linux-omap-2.6.37/linus/0064-ipv4-route.c-respect-prefsrc-for-local-routes.patch b/recipes/linux/linux-omap-2.6.37/linus/0064-ipv4-route.c-respect-prefsrc-for-local-routes.patch new file mode 100644 index 0000000000..56e00911ae --- /dev/null +++ b/recipes/linux/linux-omap-2.6.37/linus/0064-ipv4-route.c-respect-prefsrc-for-local-routes.patch @@ -0,0 +1,57 @@ +From 1e3d23ed2eae8473568b34fdc323d2fec679616b Mon Sep 17 00:00:00 2001 +From: Joel Sing <jsing@google.com> +Date: Mon, 3 Jan 2011 20:24:20 +0000 +Subject: [PATCH 64/65] ipv4/route.c: respect prefsrc for local routes + +The preferred source address is currently ignored for local routes, +which results in all local connections having a src address that is the +same as the local dst address. Fix this by respecting the preferred source +address when it is provided for local routes. + +This bug can be demonstrated as follows: + + # ifconfig dummy0 192.168.0.1 + # ip route show table local | grep local.*dummy0 + local 192.168.0.1 dev dummy0 proto kernel scope host src 192.168.0.1 + # ip route change table local local 192.168.0.1 dev dummy0 \ + proto kernel scope host src 127.0.0.1 + # ip route show table local | grep local.*dummy0 + local 192.168.0.1 dev dummy0 proto kernel scope host src 127.0.0.1 + +We now establish a local connection and verify the source IP +address selection: + + # nc -l 192.168.0.1 3128 & + # nc 192.168.0.1 3128 & + # netstat -ant | grep 192.168.0.1:3128.*EST + tcp 0 0 192.168.0.1:3128 192.168.0.1:33228 ESTABLISHED + tcp 0 0 192.168.0.1:33228 192.168.0.1:3128 ESTABLISHED + +Signed-off-by: Joel Sing <jsing@google.com> +Signed-off-by: David S. Miller <davem@davemloft.net> +--- + net/ipv4/route.c | 8 ++++++-- + 1 files changed, 6 insertions(+), 2 deletions(-) + +diff --git a/net/ipv4/route.c b/net/ipv4/route.c +index df948b0..93bfd95 100644 +--- a/net/ipv4/route.c ++++ b/net/ipv4/route.c +@@ -2649,8 +2649,12 @@ static int ip_route_output_slow(struct net *net, struct rtable **rp, + } + + if (res.type == RTN_LOCAL) { +- if (!fl.fl4_src) +- fl.fl4_src = fl.fl4_dst; ++ if (!fl.fl4_src) { ++ if (res.fi->fib_prefsrc) ++ fl.fl4_src = res.fi->fib_prefsrc; ++ else ++ fl.fl4_src = fl.fl4_dst; ++ } + dev_out = net->loopback_dev; + fl.oif = dev_out->ifindex; + res.fi = NULL; +-- +1.6.6.1 + |