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tipc: introduce ioctl for fetching node identity

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After the introduction of a 128-bit node identity it may be difficult
for a user to correlate between this identity and the generated node
hash address.

We now try to make this easier by introducing a new ioctl() call for
fetching a node identity by using the hash value as key. This will
be particularly useful when we extend some of the commands in the
'tipc' tool, but we also expect regular user applications to need
this feature.

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>
This commit is contained in:
Jon Maloy
2018-04-25 19:29:36 +02:00
committed by David S. Miller
parent 79741a38b4
commit 3e5cf362c3
4 changed files with 41 additions and 6 deletions
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12
include/uapi/linux/tipc.h
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@@ -209,16 +209,16 @@ struct tipc_group_req {
* The string formatting for each name element is:
* media: media
* interface: media:interface name
* link: Z.C.N:interface-Z.C.N:interface
*
* link: node:interface-node:interface
*/
#define TIPC_NODEID_LEN 16
#define TIPC_MAX_MEDIA_NAME 16
#define TIPC_MAX_IF_NAME 16
#define TIPC_MAX_BEARER_NAME 32
#define TIPC_MAX_LINK_NAME 68
#define SIOCGETLINKNAME SIOCPROTOPRIVATE
#define SIOCGETLINKNAME SIOCPROTOPRIVATE
#define SIOCGETNODEID (SIOCPROTOPRIVATE + 1)
struct tipc_sioc_ln_req {
__u32 peer;
@@ -226,6 +226,10 @@ struct tipc_sioc_ln_req {
char linkname[TIPC_MAX_LINK_NAME];
};
struct tipc_sioc_nodeid_req {
__u32 peer;
char node_id[TIPC_NODEID_LEN];
};
/* The macros and functions below are deprecated:
*/