net: implement a SO_DOMAIN getsockoption

This sockopt goes in line with SO_TYPE and SO_PROTOCOL. It makes it
possible for userspace programs to pass around file descriptors — I
am referring to arguments-to-functions, but it may even work for the
fd passing over UNIX sockets — without needing to also pass the
auxiliary information (PF_INET6/IPPROTO_TCP).

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jan Engelhardt
2009-08-04 07:28:29 +00:00
committed by David S. Miller
parent 49c794e946
commit 0d6038ee76
20 changed files with 24 additions and 0 deletions

View File

@ -66,5 +66,6 @@
#define SCM_TIMESTAMPING SO_TIMESTAMPING
#define SO_PROTOCOL 38
#define SO_DOMAIN 39
#endif /* _ASM_SOCKET_H */