1 files changed, 133 insertions, 0 deletions
diff --git a/include/uapi/linux/net_dropmon.h b/include/uapi/linux/net_dropmon.h
new file mode 100644
index 000000000..84f622a66
--- /dev/null
+++ b/include/uapi/linux/net_dropmon.h
@@ -0,0 +1,133 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef __NET_DROPMON_H
+#define __NET_DROPMON_H
+
+#include <linux/types.h>
+#include <linux/netlink.h>
+
+struct net_dm_drop_point {
+	__u8 pc[8];
+	__u32 count;
+};
+
+#define is_drop_point_hw(x) do {\
+	int ____i, ____j;\
+	for (____i = 0; ____i < 8; i ____i++)\
+		____j |= x[____i];\
+	____j;\
+} while (0)
+
+#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[];
+};
+
+struct net_dm_alert_msg {
+	__u32 entries;
+	struct net_dm_drop_point points[];
+};
+
+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_PACKET_ALERT,
+	NET_DM_CMD_CONFIG_GET,
+	NET_DM_CMD_CONFIG_NEW,
+	NET_DM_CMD_STATS_GET,
+	NET_DM_CMD_STATS_NEW,
+	_NET_DM_CMD_MAX,
+};
+
+#define NET_DM_CMD_MAX (_NET_DM_CMD_MAX - 1)
+
+/*
+ * Our group identifiers
+ */
+#define NET_DM_GRP_ALERT 1
+
+enum net_dm_attr {
+	NET_DM_ATTR_UNSPEC,
+
+	NET_DM_ATTR_ALERT_MODE,			/* u8 */
+	NET_DM_ATTR_PC,				/* u64 */
+	NET_DM_ATTR_SYMBOL,			/* string */
+	NET_DM_ATTR_IN_PORT,			/* nested */
+	NET_DM_ATTR_TIMESTAMP,			/* u64 */
+	NET_DM_ATTR_PROTO,			/* u16 */
+	NET_DM_ATTR_PAYLOAD,			/* binary */
+	NET_DM_ATTR_PAD,
+	NET_DM_ATTR_TRUNC_LEN,			/* u32 */
+	NET_DM_ATTR_ORIG_LEN,			/* u32 */
+	NET_DM_ATTR_QUEUE_LEN,			/* u32 */
+	NET_DM_ATTR_STATS,			/* nested */
+	NET_DM_ATTR_HW_STATS,			/* nested */
+	NET_DM_ATTR_ORIGIN,			/* u16 */
+	NET_DM_ATTR_HW_TRAP_GROUP_NAME,		/* string */
+	NET_DM_ATTR_HW_TRAP_NAME,		/* string */
+	NET_DM_ATTR_HW_ENTRIES,			/* nested */
+	NET_DM_ATTR_HW_ENTRY,			/* nested */
+	NET_DM_ATTR_HW_TRAP_COUNT,		/* u32 */
+	NET_DM_ATTR_SW_DROPS,			/* flag */
+	NET_DM_ATTR_HW_DROPS,			/* flag */
+	NET_DM_ATTR_FLOW_ACTION_COOKIE,		/* binary */
+	NET_DM_ATTR_REASON,			/* string */
+
+	__NET_DM_ATTR_MAX,
+	NET_DM_ATTR_MAX = __NET_DM_ATTR_MAX - 1
+};
+
+/**
+ * enum net_dm_alert_mode - Alert mode.
+ * @NET_DM_ALERT_MODE_SUMMARY: A summary of recent drops is sent to user space.
+ * @NET_DM_ALERT_MODE_PACKET: Each dropped packet is sent to user space along
+ *                            with metadata.
+ */
+enum net_dm_alert_mode {
+	NET_DM_ALERT_MODE_SUMMARY,
+	NET_DM_ALERT_MODE_PACKET,
+};
+
+enum {
+	NET_DM_ATTR_PORT_NETDEV_IFINDEX,	/* u32 */
+	NET_DM_ATTR_PORT_NETDEV_NAME,		/* string */
+
+	__NET_DM_ATTR_PORT_MAX,
+	NET_DM_ATTR_PORT_MAX = __NET_DM_ATTR_PORT_MAX - 1
+};
+
+enum {
+	NET_DM_ATTR_STATS_DROPPED,		/* u64 */
+
+	__NET_DM_ATTR_STATS_MAX,
+	NET_DM_ATTR_STATS_MAX = __NET_DM_ATTR_STATS_MAX - 1
+};
+
+enum net_dm_origin {
+	NET_DM_ORIGIN_SW,
+	NET_DM_ORIGIN_HW,
+};
+
+#endif