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authorNeil Horman <nhorman@tuxdriver.com>2009-03-11 05:51:26 -0400
committerDavid S. Miller <davem@davemloft.net>2009-03-13 15:09:29 -0400
commit9a8afc8d3962f3ed26fd6b56db34133860ed1e72 (patch)
treefb2cd994dc04e632e9af4fb2c9f6dba056e837fb /include
parentead2ceb0ec9f85cff19c43b5cdb2f8a054484431 (diff)
Network Drop Monitor: Adding drop monitor implementation & Netlink protocol
Signed-off-by: Neil Horman <nhorman@tuxdriver.com> include/linux/net_dropmon.h | 56 +++++++++ net/core/drop_monitor.c | 263 ++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 319 insertions(+) Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
-rw-r--r--include/linux/net_dropmon.h56
1 files changed, 56 insertions, 0 deletions
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 @@
1#ifndef __NET_DROPMON_H
2#define __NET_DROPMON_H
3
4#include <linux/netlink.h>
5
6struct net_dm_drop_point {
7 __u8 pc[8];
8 __u32 count;
9};
10
11#define NET_DM_CFG_VERSION 0
12#define NET_DM_CFG_ALERT_COUNT 1
13#define NET_DM_CFG_ALERT_DELAY 2
14#define NET_DM_CFG_MAX 3
15
16struct net_dm_config_entry {
17 __u32 type;
18 __u64 data __attribute__((aligned(8)));
19};
20
21struct net_dm_config_msg {
22 __u32 entries;
23 struct net_dm_config_entry options[0];
24};
25
26struct net_dm_alert_msg {
27 __u32 entries;
28 struct net_dm_drop_point points[0];
29};
30
31struct net_dm_user_msg {
32 union {
33 struct net_dm_config_msg user;
34 struct net_dm_alert_msg alert;
35 } u;
36};
37
38
39/* These are the netlink message types for this protocol */
40
41enum {
42 NET_DM_CMD_UNSPEC = 0,
43 NET_DM_CMD_ALERT,
44 NET_DM_CMD_CONFIG,
45 NET_DM_CMD_START,
46 NET_DM_CMD_STOP,
47 _NET_DM_CMD_MAX,
48};
49
50#define NET_DM_CMD_MAX (_NET_DM_CMD_MAX - 1)
51
52/*
53 * Our group identifiers
54 */
55#define NET_DM_GRP_ALERT 1
56#endif