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authorJon Maloy <jon.maloy@ericsson.com>2017-10-13 11:04:24 +0200
committerDavid S. Miller <davem@davemloft.net>2017-10-13 17:46:00 +0200
commit31c82a2d9d51fccbb85cbd2be983eb115225301c (patch)
treea6681b56dfea5bdae4c6d1459abf6c04131aebec /net/tipc/msg.h
parenttipc: introduce communication groups (diff)
downloadlinux-31c82a2d9d51fccbb85cbd2be983eb115225301c.tar.xz
linux-31c82a2d9d51fccbb85cbd2be983eb115225301c.zip
tipc: add second source address to recvmsg()/recvfrom()
With group communication, it becomes important for a message receiver to identify not only from which socket (identfied by a node:port tuple) the message was sent, but also the logical identity (type:instance) of the sending member. We fix this by adding a second instance of struct sockaddr_tipc to the source address area when a message is read. The extra address struct is filled in with data found in the received message header (type,) and in the local member representation struct (instance.) Signed-off-by: Jon Maloy <jon.maloy@ericsson.com> Acked-by: Ying Xue <ying.xue@windriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/tipc/msg.h')
-rw-r--r--net/tipc/msg.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/net/tipc/msg.h b/net/tipc/msg.h
index dad400935405..e438716d2372 100644
--- a/net/tipc/msg.h
+++ b/net/tipc/msg.h
@@ -100,6 +100,7 @@ struct plist;
struct tipc_skb_cb {
u32 bytes_read;
+ u32 orig_member;
struct sk_buff *tail;
bool validated;
u16 chain_imp;