IPv6: Add dontfrag argument to relevant functions

Add dontfrag argument to relevant functions for
IPV6_DONTFRAG support, as well as allowing the value
to be passed-in via ancillary cmsg data.

Signed-off-by: Brian Haley <brian.haley@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 4 insertions, 2 deletions

diff --git a/include/net/ipv6.h b/include/net/ipv6.h
index b1d8db90b214..7ab6323e631e 100644
--- a/include/net/ipv6.h
+++ b/include/net/ipv6.h
@@ -503,7 +503,8 @@ extern int			ip6_append_data(struct sock *sk,
                                                 struct ipv6_txoptions *opt,
                                                 struct flowi *fl,
                                                 struct rt6_info *rt,
-                                                unsigned int flags);
+                                                unsigned int flags,
+                                                int dontfrag);
 
 extern int                      ip6_push_pending_frames(struct sock *sk);
 
diff --git a/include/net/transp_v6.h b/include/net/transp_v6.h
index d65381cad0fc..42a0eb68b7b6 100644
--- a/include/net/transp_v6.h
+++ b/include/net/transp_v6.h
@@ -44,7 +44,8 @@ extern int			datagram_send_ctl(struct net *net,
                                                   struct msghdr *msg,
                                                   struct flowi *fl,
                                                   struct ipv6_txoptions *opt,
-                                                  int *hlimit, int *tclass);
+                                                  int *hlimit, int *tclass,
+                                                  int *dontfrag);
 
 #define         LOOPBACK4_IPV6          cpu_to_be32(0x7f000006)