From 621677154f39f2e0b698a558b8b795db84a8e014 Mon Sep 17 00:00:00 2001 From: Jonas Gorski Date: Wed, 2 Dec 2015 22:23:22 +0000 Subject: kernel: add linux 4.4 support Based on 4.4-rc3. Runtime tested on MIPS. Signed-off-by: Jonas Gorski SVN-Revision: 47701 --- .../613-netfilter_optional_tcp_window_check.patch | 36 ++++++++++++++++++++++ 1 file changed, 36 insertions(+) create mode 100644 target/linux/generic/patches-4.4/613-netfilter_optional_tcp_window_check.patch (limited to 'target/linux/generic/patches-4.4/613-netfilter_optional_tcp_window_check.patch') diff --git a/target/linux/generic/patches-4.4/613-netfilter_optional_tcp_window_check.patch b/target/linux/generic/patches-4.4/613-netfilter_optional_tcp_window_check.patch new file mode 100644 index 0000000000..3740dd74e5 --- /dev/null +++ b/target/linux/generic/patches-4.4/613-netfilter_optional_tcp_window_check.patch @@ -0,0 +1,36 @@ +--- a/net/netfilter/nf_conntrack_proto_tcp.c ++++ b/net/netfilter/nf_conntrack_proto_tcp.c +@@ -33,6 +33,9 @@ + #include + #include + ++/* Do not check the TCP window for incoming packets */ ++static int nf_ct_tcp_no_window_check __read_mostly = 1; ++ + /* "Be conservative in what you do, + be liberal in what you accept from others." + If it's non-zero, we mark only out of window RST segments as INVALID. */ +@@ -515,6 +518,9 @@ static bool tcp_in_window(const struct n + s32 receiver_offset; + bool res, in_recv_win; + ++ if (nf_ct_tcp_no_window_check) ++ return true; ++ + /* + * Get the required data from the packet. + */ +@@ -1481,6 +1487,13 @@ static struct ctl_table tcp_sysctl_table + .mode = 0644, + .proc_handler = proc_dointvec, + }, ++ { ++ .procname = "nf_conntrack_tcp_no_window_check", ++ .data = &nf_ct_tcp_no_window_check, ++ .maxlen = sizeof(unsigned int), ++ .mode = 0644, ++ .proc_handler = proc_dointvec, ++ }, + { } + }; + -- cgit v1.2.3