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Date:   Fri, 22 Mar 2019 12:13:27 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Sergey Nazarov <s-nazarov@...dex.ru>,
        Paul Moore <paul@...l-moore.com>,
        "David S. Miller" <davem@...emloft.net>
Subject: [PATCH 4.4 069/230] net: Add __icmp_send helper.

4.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Nazarov Sergey <s-nazarov@...dex.ru>

[ Upstream commit 9ef6b42ad6fd7929dd1b6092cb02014e382c6a91 ]

Add __icmp_send function having ip_options struct parameter

Signed-off-by: Sergey Nazarov <s-nazarov@...dex.ru>
Reviewed-by: Paul Moore <paul@...l-moore.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 include/net/icmp.h |    9 ++++++++-
 net/ipv4/icmp.c    |    7 ++++---
 2 files changed, 12 insertions(+), 4 deletions(-)

--- a/include/net/icmp.h
+++ b/include/net/icmp.h
@@ -22,6 +22,7 @@
 
 #include <net/inet_sock.h>
 #include <net/snmp.h>
+#include <net/ip.h>
 
 struct icmp_err {
   int		errno;
@@ -39,7 +40,13 @@ struct net_proto_family;
 struct sk_buff;
 struct net;
 
-void icmp_send(struct sk_buff *skb_in, int type, int code, __be32 info);
+void __icmp_send(struct sk_buff *skb_in, int type, int code, __be32 info,
+		 const struct ip_options *opt);
+static inline void icmp_send(struct sk_buff *skb_in, int type, int code, __be32 info)
+{
+	__icmp_send(skb_in, type, code, info, &IPCB(skb_in)->opt);
+}
+
 int icmp_rcv(struct sk_buff *skb);
 void icmp_err(struct sk_buff *skb, u32 info);
 int icmp_init(void);
--- a/net/ipv4/icmp.c
+++ b/net/ipv4/icmp.c
@@ -565,7 +565,8 @@ relookup_failed:
  *			MUST reply to only the first fragment.
  */
 
-void icmp_send(struct sk_buff *skb_in, int type, int code, __be32 info)
+void __icmp_send(struct sk_buff *skb_in, int type, int code, __be32 info,
+		 const struct ip_options *opt)
 {
 	struct iphdr *iph;
 	int room;
@@ -679,7 +680,7 @@ void icmp_send(struct sk_buff *skb_in, i
 					  iph->tos;
 	mark = IP4_REPLY_MARK(net, skb_in->mark);
 
-	if (ip_options_echo(&icmp_param->replyopts.opt.opt, skb_in))
+	if (__ip_options_echo(&icmp_param->replyopts.opt.opt, skb_in, opt))
 		goto out_unlock;
 
 
@@ -731,7 +732,7 @@ out_free:
 	kfree(icmp_param);
 out:;
 }
-EXPORT_SYMBOL(icmp_send);
+EXPORT_SYMBOL(__icmp_send);
 
 
 static void icmp_socket_deliver(struct sk_buff *skb, u32 info)


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