bianbu-repo-mirror/bianbu-linux-6.6
1
0
Fork 0
mirror of https://gitee.com/bianbu-linux/linux-6.6 synced 2025-04-24 14:07:52 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions

mctp: Implement extended addressing

Browse source 
This change allows an extended address struct - struct sockaddr_mctp_ext
- to be passed to sendmsg/recvmsg. This allows userspace to specify
output ifindex and physical address information (for sendmsg) or receive
the input ifindex/physaddr for incoming messages (for recvmsg). This is
typically used by userspace for MCTP address discovery and assignment
operations.

The extended addressing facility is conditional on a new sockopt:
MCTP_OPT_ADDR_EXT; userspace must explicitly enable addressing before
the kernel will consume/populate the extended address data.

Includes a fix for an uninitialised var:
Reported-by: kernel test robot <lkp@intel.com>

Signed-off-by: Jeremy Kerr <jk@codeconstruct.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jeremy Kerr 2021-10-26 09:57:28 +08:00 • committed by David S. Miller
parent 971f5c4079
commit 99ce45d5e7
5 changed files with 170 additions and 39 deletions
Download patch file Download diff file Expand all files Collapse all files

1
include/linux/socket.h
View file

@ -365,6 +365,7 @@ struct ucred {
#define SOL_TLS 282
#define SOL_XDP 283
#define SOL_MPTCP 284
#define SOL_MCTP 285
/* IPX options */
#define IPX_TYPE 1