path: root/include
diff options
authorUrsula Braun <>2012-02-08 00:19:48 +0000
committerDavid S. Miller <>2012-02-08 18:50:19 -0500
commit51363b8751a673a00ad48eea895266396d53fa52 (patch)
treeea8b4278a7a5115ee848bac4b33e5f0f44369488 /include
parent800c5eb7b5eba6cb2a32738d763fd59f0fbcdde4 (diff)
af_iucv: allow retrieval of maximum message size
For HS transport the maximum message size depends on the MTU-size of the HS-device bound to the AF_IUCV socket. This patch adds a getsockopt option MSGSIZE returning the maximum message size that can be handled for this AF_IUCV socket. Signed-off-by: Ursula Braun <> Signed-off-by: Frank Blaschka <> Signed-off-by: David S. Miller <>
Diffstat (limited to 'include')
1 files changed, 1 insertions, 0 deletions
diff --git a/include/net/iucv/af_iucv.h b/include/net/iucv/af_iucv.h
index a1517887aea..2e1d5ecc2d1 100644
--- a/include/net/iucv/af_iucv.h
+++ b/include/net/iucv/af_iucv.h
@@ -132,6 +132,7 @@ struct iucv_sock {
/* iucv socket options (SOL_IUCV) */
#define SO_IPRMDATA_MSG 0x0080 /* send/recv IPRM_DATA msgs */
#define SO_MSGLIMIT 0x1000 /* get/set IUCV MSGLIMIT */
+#define SO_MSGSIZE 0x0800 /* get maximum msgsize */
/* iucv related control messages (scm) */
#define SCM_IUCV_TRGCLS 0x0001 /* target class control message */