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eaaa313926
The netlink_diag can be built as a module, just like it's done in unix sockets. The core dumping message carries the basic info about netlink sockets: family, type and protocol, portis, dst_group, dst_portid, state. Groups can be received as an optional parameter NETLINK_DIAG_GROUPS. Netlink sockets cab be filtered by protocols. The socket inode number and cookie is reserved for future per-socket info retrieving. The per-protocol filtering is also reserved for future by requiring the sdiag_protocol to be zero. The file /proc/net/netlink doesn't provide enough information for dumping netlink sockets. It doesn't provide dst_group, dst_portid, groups above 32. v2: fix NETLINK_DIAG_MAX. Now it's equal to the last constant. Acked-by: Pavel Emelyanov <xemul@parallels.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Eric Dumazet <edumazet@google.com> Cc: Pablo Neira Ayuso <pablo@netfilter.org> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Gao feng <gaofeng@cn.fujitsu.com> Cc: Thomas Graf <tgraf@suug.ch> Signed-off-by: Andrey Vagin <avagin@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
43 lines
771 B
C
43 lines
771 B
C
#ifndef __NETLINK_DIAG_H__
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#define __NETLINK_DIAG_H__
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#include <linux/types.h>
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struct netlink_diag_req {
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__u8 sdiag_family;
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__u8 sdiag_protocol;
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__u16 pad;
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__u32 ndiag_ino;
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__u32 ndiag_show;
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__u32 ndiag_cookie[2];
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};
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struct netlink_diag_msg {
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__u8 ndiag_family;
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__u8 ndiag_type;
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__u8 ndiag_protocol;
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__u8 ndiag_state;
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__u32 ndiag_portid;
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__u32 ndiag_dst_portid;
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__u32 ndiag_dst_group;
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__u32 ndiag_ino;
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__u32 ndiag_cookie[2];
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};
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enum {
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NETLINK_DIAG_MEMINFO,
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NETLINK_DIAG_GROUPS,
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__NETLINK_DIAG_MAX,
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};
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#define NETLINK_DIAG_MAX (__NETLINK_DIAG_MAX - 1)
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#define NDIAG_PROTO_ALL ((__u8) ~0)
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#define NDIAG_SHOW_MEMINFO 0x00000001 /* show memory info of a socket */
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#define NDIAG_SHOW_GROUPS 0x00000002 /* show groups of a netlink socket */
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#endif
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