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author | Jon Maloy <jon.maloy@ericsson.com> | 2017-10-13 11:04:24 +0200 |
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committer | David S. Miller <davem@davemloft.net> | 2017-10-13 17:46:00 +0200 |
commit | 31c82a2d9d51fccbb85cbd2be983eb115225301c (patch) | |
tree | a6681b56dfea5bdae4c6d1459abf6c04131aebec /net/tipc/msg.h | |
parent | tipc: introduce communication groups (diff) | |
download | linux-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.h | 1 |
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; |