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tipc: add ioctl to fetch link names

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We add a new ioctl for AF_TIPC that can be used to fetch the
logical name for a link to a remote node on a given bearer. This
should be used in combination with link state subscriptions.
The logical name size limit definitions are moved to tipc.h, as
they are now also needed by the new ioctl.

Signed-off-by: Erik Hugne <erik.hugne@ericsson.com>
Reviewed-by: Ying Xue <ying.xue@windriver.com>
Reviewed-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Erik Hugne 2014-04-24 16:26:47 +02:00 • committed by David S. Miller
parent a89778d8ba
commit 78acb1f9b8
5 changed files with 77 additions and 12 deletions
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22
include/uapi/linux/tipc.h
View file

@ -38,6 +38,7 @@
#define _LINUX_TIPC_H_
#include <linux/types.h>
#include <linux/sockios.h>
/*
* TIPC addressing primitives
@ -207,4 +208,25 @@ struct sockaddr_tipc {
#define TIPC_NODE_RECVQ_DEPTH 131 /* Default: none (read only) */
#define TIPC_SOCK_RECVQ_DEPTH 132 /* Default: none (read only) */
/*
* Maximum sizes of TIPC bearer-related names (including terminating NULL)
* The string formatting for each name element is:
* media: media
* interface: media:interface name
* link: Z.C.N:interface-Z.C.N:interface
*
*/
#define TIPC_MAX_MEDIA_NAME 16
#define TIPC_MAX_IF_NAME 16
#define TIPC_MAX_BEARER_NAME 32
#define TIPC_MAX_LINK_NAME 60
#define SIOCGETLINKNAME SIOCPROTOPRIVATE
struct tipc_sioc_ln_req {
__u32 peer;
__u32 bearer_id;
char linkname[TIPC_MAX_LINK_NAME];
};
#endif