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| author |   Jon Maloy <jon.maloy@ericsson.com> | 2018-09-28 20:23:21 +0200 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2018-09-29 11:24:22 -0700 |
| commit | 25b9221b959483f17c2964d0922869e16caa86b5 (patch) | |
| tree | efe153ded226c9b0046ff7612fa90fb0883e93b2 /net/tipc/node.h | |
| parent | tipc: refactor function tipc_sk_filter_connect() (diff) | |
| download | linux-dev-25b9221b959483f17c2964d0922869e16caa86b5.tar.xz linux-dev-25b9221b959483f17c2964d0922869e16caa86b5.zip | |
tipc: add SYN bit to connection setup messages
Messages intended for intitating a connection are currently
indistinguishable from regular datagram messages. The TIPC
protocol specification defines bit 17 in word 0 as a SYN bit
to allow sanity check of such messages in the listening socket,
but this has so far never been implemented.
We do that in this commit.
Acked-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/tipc/node.h')
| -rw-r--r-- | net/tipc/node.h | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/net/tipc/node.h b/net/tipc/node.h index 48b3298a248d..03f5efb62cfb 100644 --- a/net/tipc/node.h +++ b/net/tipc/node.h @@ -45,6 +45,7 @@ /* Optional capabilities supported by this code version */ enum { + TIPC_SYN_BIT = (1), TIPC_BCAST_SYNCH = (1 << 1), TIPC_BCAST_STATE_NACK = (1 << 2), TIPC_BLOCK_FLOWCTL = (1 << 3), @@ -53,11 +54,12 @@ enum { TIPC_LINK_PROTO_SEQNO = (1 << 6) }; -#define TIPC_NODE_CAPABILITIES (TIPC_BCAST_SYNCH | \ - TIPC_BCAST_STATE_NACK | \ - TIPC_BCAST_RCAST | \ - TIPC_BLOCK_FLOWCTL | \ - TIPC_NODE_ID128 | \ +#define TIPC_NODE_CAPABILITIES (TIPC_SYN_BIT | \ + TIPC_BCAST_SYNCH | \ + TIPC_BCAST_STATE_NACK | \ + TIPC_BCAST_RCAST | \ + TIPC_BLOCK_FLOWCTL | \ + TIPC_NODE_ID128 | \ TIPC_LINK_PROTO_SEQNO) #define INVALID_BEARER_ID -1 |