From 9a8afc8d3962f3ed26fd6b56db34133860ed1e72 Mon Sep 17 00:00:00 2001 From: Neil Horman Date: Wed, 11 Mar 2009 09:51:26 +0000 Subject: Network Drop Monitor: Adding drop monitor implementation & Netlink protocol Signed-off-by: Neil Horman include/linux/net_dropmon.h | 56 +++++++++ net/core/drop_monitor.c | 263 ++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 319 insertions(+) Signed-off-by: David S. Miller --- include/linux/net_dropmon.h | 56 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 56 insertions(+) create mode 100644 include/linux/net_dropmon.h (limited to 'include/linux/net_dropmon.h') diff --git a/include/linux/net_dropmon.h b/include/linux/net_dropmon.h new file mode 100644 index 000000000000..0217fb81a630 --- /dev/null +++ b/include/linux/net_dropmon.h @@ -0,0 +1,56 @@ +#ifndef __NET_DROPMON_H +#define __NET_DROPMON_H + +#include + +struct net_dm_drop_point { + __u8 pc[8]; + __u32 count; +}; + +#define NET_DM_CFG_VERSION 0 +#define NET_DM_CFG_ALERT_COUNT 1 +#define NET_DM_CFG_ALERT_DELAY 2 +#define NET_DM_CFG_MAX 3 + +struct net_dm_config_entry { + __u32 type; + __u64 data __attribute__((aligned(8))); +}; + +struct net_dm_config_msg { + __u32 entries; + struct net_dm_config_entry options[0]; +}; + +struct net_dm_alert_msg { + __u32 entries; + struct net_dm_drop_point points[0]; +}; + +struct net_dm_user_msg { + union { + struct net_dm_config_msg user; + struct net_dm_alert_msg alert; + } u; +}; + + +/* These are the netlink message types for this protocol */ + +enum { + NET_DM_CMD_UNSPEC = 0, + NET_DM_CMD_ALERT, + NET_DM_CMD_CONFIG, + NET_DM_CMD_START, + NET_DM_CMD_STOP, + _NET_DM_CMD_MAX, +}; + +#define NET_DM_CMD_MAX (_NET_DM_CMD_MAX - 1) + +/* + * Our group identifiers + */ +#define NET_DM_GRP_ALERT 1 +#endif -- cgit v1.2.3