diff options
| author | Jeremy Kerr <jk@codeconstruct.com.au> | 2021-10-26 09:57:28 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-10-26 14:58:45 +0100 |
| commit | 99ce45d5e7dbde399997a630f45ac9f654fa4bcc (patch) | |
| tree | 90da8fa27361a3ff0eba69e8a074a921d99f049f /include/linux/socket.h | |
| parent | 971f5c4079ed46a131ad3ac6e684ed056a7777da (diff) | |
mctp: Implement extended addressing
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>
Diffstat (limited to 'include/linux/socket.h')
| -rw-r--r-- | include/linux/socket.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/socket.h b/include/linux/socket.h index 7612d760b6a9..8ef26d89ef49 100644 --- a/include/linux/socket.h +++ b/include/linux/socket.h @@ -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 |