net: Add __icmp_send helper.

BugLink: https://bugs.launchpad.net/bugs/1837813
[ Upstream commit 9ef6b42ad6fd7929dd1b6092cb02014e382c6a91 ]

Add __icmp_send function having ip_options struct parameter

Signed-off-by: Sergey Nazarov <s-nazarov@yandex.ru>
Reviewed-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Khalid Elmously <khalid.elmously@canonical.com>

diff --git a/include/net/icmp.h b/include/net/icmp.h
index 3ef2743a8eecc742d05b369914af22111122af4f..8665bf24e3b7a90964e5a66dddad0c1afb64b701 100644 (file)
--- 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);

diff --git a/net/ipv4/icmp.c b/net/ipv4/icmp.c
index 1617604c92847d5b0d058fac40dc3707f22348a5..bd77778ca183723f747d58856ac175001e8c83d9 100644 (file)
--- a/net/ipv4/icmp.c
+++ b/net/ipv4/icmp.c
@@ -573,7 +573,8 @@ 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;
@@ -694,7 +695,7 @@ void icmp_send(struct sk_buff *skb_in, int type, int code, __be32 info)
                                          iph->tos;
        mark = IP4_REPLY_MARK(net, skb_in->mark);
 
-       if (ip_options_echo(net, &icmp_param.replyopts.opt.opt, skb_in))
+       if (__ip_options_echo(net, &icmp_param.replyopts.opt.opt, skb_in, opt))
                goto out_unlock;
 
 
@@ -747,7 +748,7 @@ out_bh_enable:
        local_bh_enable();
 out:;
 }
-EXPORT_SYMBOL(icmp_send);
+EXPORT_SYMBOL(__icmp_send);
 
 
 static void icmp_socket_deliver(struct sk_buff *skb, u32 info)