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netlink/diag: report flags for netlink sockets

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cb_running is reported in /proc/self/net/netlink and it is reported by
the ss tool, when it gets information from the proc files.

sock_diag is a new interface which is used instead of proc files, so it
looks reasonable that this interface has to report no less information
about sockets than proc files.

We use these flags to dump and restore netlink sockets.

Signed-off-by: Andrei Vagin <avagin@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Andrey Vagin
2017-04-03 18:13:32 -07:00
committed by David S. Miller
parent c800460086
commit 457c79e544
4 changed files with 43 additions and 8 deletions
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10
include/uapi/linux/netlink_diag.h
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@@ -38,6 +38,7 @@ enum {
NETLINK_DIAG_GROUPS,
NETLINK_DIAG_RX_RING,
NETLINK_DIAG_TX_RING,
NETLINK_DIAG_FLAGS,
__NETLINK_DIAG_MAX,
};
@@ -52,5 +53,14 @@ enum {
/* deprecated since 4.6 */
#define NDIAG_SHOW_RING_CFG 0x00000004 /* show ring configuration */
#endif
#define NDIAG_SHOW_FLAGS 0x00000008 /* show flags of a netlink socket */
/* flags */
#define NDIAG_FLAG_CB_RUNNING 0x00000001
#define NDIAG_FLAG_PKTINFO 0x00000002
#define NDIAG_FLAG_BROADCAST_ERROR 0x00000004
#define NDIAG_FLAG_NO_ENOBUFS 0x00000008
#define NDIAG_FLAG_LISTEN_ALL_NSID 0x00000010
#define NDIAG_FLAG_CAP_ACK 0x00000020
#endif