From eb4cb008529ca08e0d8c0fa54e8f739520197a65 Mon Sep 17 00:00:00 2001 From: Craig Gallek Date: Mon, 15 Jun 2015 11:26:18 -0400 Subject: sock_diag: define destruction multicast groups 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 Acked-by: Eric Dumazet Signed-off-by: David S. Miller --- include/uapi/linux/sock_diag.h | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'include/uapi/linux') diff --git a/include/uapi/linux/sock_diag.h b/include/uapi/linux/sock_diag.h index b00e29efb161..49230d36f9ce 100644 --- a/include/uapi/linux/sock_diag.h +++ b/include/uapi/linux/sock_diag.h @@ -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__ */ -- cgit v1.2.3 From 35ac838a9b96470f999db04320f53a2033642bfb Mon Sep 17 00:00:00 2001 From: Craig Gallek Date: Mon, 15 Jun 2015 11:26:20 -0400 Subject: sock_diag: implement a get_info handler for inet This get_info handler will simply dispatch to the appropriate existing inet protocol handler. This patch also includes a new netlink attribute (INET_DIAG_PROTOCOL). This attribute is currently only used for multicast messages. Without this attribute, there is no way of knowing the IP protocol used by the socket information being broadcast. This attribute is not necessary in the 'dump' variant of this protocol (though it could easily be added) because dump requests are issued for specific family/protocol pairs. Tested: ss -E (note, the -E option has not yet been merged into the upstream version of ss). Signed-off-by: Craig Gallek Acked-by: Eric Dumazet Signed-off-by: David S. Miller --- include/uapi/linux/inet_diag.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'include/uapi/linux') diff --git a/include/uapi/linux/inet_diag.h b/include/uapi/linux/inet_diag.h index c7093c75bdd6..b629fc53b109 100644 --- a/include/uapi/linux/inet_diag.h +++ b/include/uapi/linux/inet_diag.h @@ -111,9 +111,10 @@ enum { INET_DIAG_SKMEMINFO, INET_DIAG_SHUTDOWN, INET_DIAG_DCTCPINFO, + INET_DIAG_PROTOCOL, /* response attribute only */ }; -#define INET_DIAG_MAX INET_DIAG_DCTCPINFO +#define INET_DIAG_MAX INET_DIAG_PROTOCOL /* INET_DIAG_MEM */ -- cgit v1.2.3