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sock_diag: define destruction multicast groups

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These groups will contain socket-destruction events for
AF_INET/AF_INET6, IPPROTO_TCP/IPPROTO_UDP.

Near the end of socket destruction, a check for listeners is
performed.  In the presence of a listener, rather than completely
cleanup the socket, a unit of work will be added to a private
work queue which will first broadcast information about the socket
and then finish the cleanup operation.

Signed-off-by: Craig Gallek <kraig@google.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Craig Gallek 2015-06-15 11:26:18 -04:00 • committed by David S. Miller
parent 916035ddd3
commit eb4cb00852
5 changed files with 148 additions and 1 deletions
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10
include/uapi/linux/sock_diag.h
View file

@ -23,4 +23,14 @@ enum {
SK_MEMINFO_VARS,
};
enum sknetlink_groups {
SKNLGRP_NONE,
SKNLGRP_INET_TCP_DESTROY,
SKNLGRP_INET_UDP_DESTROY,
SKNLGRP_INET6_TCP_DESTROY,
SKNLGRP_INET6_UDP_DESTROY,
__SKNLGRP_MAX,
};
#define SKNLGRP_MAX (__SKNLGRP_MAX - 1)
#endif /* _UAPI__SOCK_DIAG_H__ */