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authorGreg Kroah-Hartman <gregkh@google.com>2019-06-17 20:30:38 +0200
committerGreg Kroah-Hartman <gregkh@google.com>2019-06-17 20:30:38 +0200
commit15b29f5df10905a71491d2737ea423cd4458bc3b (patch)
tree579ee36abd7dd2a222ced3aac1a4cf33a327a832 /include
parent7b41aee921e20b15fb9f12d5042386ed2416f786 (diff)
parent33790f2eda7393d422927078597a33475792c82c (diff)
Merge 4.4.182 into android-4.4-p
Changes in 4.4.182 tcp: limit payload size of sacked skbs tcp: tcp_fragment() should apply sane memory limits tcp: add tcp_min_snd_mss sysctl tcp: enforce tcp_min_snd_mss in tcp_mtu_probing() Linux 4.4.182 Change-Id: Idb237d729dbdbfc2d0e41544b19f0d5d6547644b Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Diffstat (limited to 'include')
-rw-r--r--include/linux/tcp.h3
-rw-r--r--include/net/netns/ipv4.h1
-rw-r--r--include/net/tcp.h2
-rw-r--r--include/uapi/linux/snmp.h1
4 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/tcp.h b/include/linux/tcp.h
index 747404dbe506..085da1707cea 100644
--- a/include/linux/tcp.h
+++ b/include/linux/tcp.h
@@ -419,4 +419,7 @@ static inline void tcp_saved_syn_free(struct tcp_sock *tp)
tp->saved_syn = NULL;
}
+int tcp_skb_shift(struct sk_buff *to, struct sk_buff *from, int pcount,
+ int shiftlen);
+
#endif /* _LINUX_TCP_H */
diff --git a/include/net/netns/ipv4.h b/include/net/netns/ipv4.h
index c68926b4899c..61c38f87ea07 100644
--- a/include/net/netns/ipv4.h
+++ b/include/net/netns/ipv4.h
@@ -88,6 +88,7 @@ struct netns_ipv4 {
int sysctl_tcp_fwmark_accept;
int sysctl_tcp_mtu_probing;
int sysctl_tcp_base_mss;
+ int sysctl_tcp_min_snd_mss;
int sysctl_tcp_probe_threshold;
u32 sysctl_tcp_probe_interval;
diff --git a/include/net/tcp.h b/include/net/tcp.h
index 5bd96455ddbd..daf611b5a49e 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -54,6 +54,8 @@ void tcp_time_wait(struct sock *sk, int state, int timeo);
#define MAX_TCP_HEADER (128 + MAX_HEADER)
#define MAX_TCP_OPTION_SPACE 40
+#define TCP_MIN_SND_MSS 48
+#define TCP_MIN_GSO_SIZE (TCP_MIN_SND_MSS - MAX_TCP_OPTION_SPACE)
/*
* Never offer a window over 32767 without using window scaling. Some
diff --git a/include/uapi/linux/snmp.h b/include/uapi/linux/snmp.h
index 9de808ebce05..422183f396d5 100644
--- a/include/uapi/linux/snmp.h
+++ b/include/uapi/linux/snmp.h
@@ -281,6 +281,7 @@ enum
LINUX_MIB_TCPKEEPALIVE, /* TCPKeepAlive */
LINUX_MIB_TCPMTUPFAIL, /* TCPMTUPFail */
LINUX_MIB_TCPMTUPSUCCESS, /* TCPMTUPSuccess */
+ LINUX_MIB_TCPWQUEUETOOBIG, /* TCPWqueueTooBig */
__LINUX_MIB_MAX
};