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-rw-r--r--net/ipv6/datagram.c5
-rw-r--r--net/ipv6/ipv6_sockglue.c8
2 files changed, 13 insertions, 0 deletions
diff --git a/net/ipv6/datagram.c b/net/ipv6/datagram.c
index 37874e2..620c79a 100644
--- a/net/ipv6/datagram.c
+++ b/net/ipv6/datagram.c
@@ -715,6 +715,11 @@ void ip6_datagram_recv_specific_ctl(struct sock *sk, struct msghdr *msg,
put_cmsg(msg, SOL_IPV6, IPV6_ORIGDSTADDR, sizeof(sin6), &sin6);
}
}
+ if (np->rxopt.bits.recvfragsize && opt->frag_max_size) {
+ int val = opt->frag_max_size;
+
+ put_cmsg(msg, SOL_IPV6, IPV6_RECVFRAGSIZE, sizeof(val), &val);
+ }
}
void ip6_datagram_recv_ctl(struct sock *sk, struct msghdr *msg,
diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c
index 636ec56..6c12678 100644
--- a/net/ipv6/ipv6_sockglue.c
+++ b/net/ipv6/ipv6_sockglue.c
@@ -868,6 +868,10 @@ pref_skip_coa:
np->autoflowlabel = valbool;
retv = 0;
break;
+ case IPV6_RECVFRAGSIZE:
+ np->rxopt.bits.recvfragsize = valbool;
+ retv = 0;
+ break;
}
release_sock(sk);
@@ -1310,6 +1314,10 @@ static int do_ipv6_getsockopt(struct sock *sk, int level, int optname,
val = np->autoflowlabel;
break;
+ case IPV6_RECVFRAGSIZE:
+ val = np->rxopt.bits.recvfragsize;
+ break;
+
default:
return -ENOPROTOOPT;
}
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