Adding upstream version 4.2.2.upstream/4.2.2

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 572 insertions, 0 deletions

diff --git a/epan/dissectors/packet-netlink-generic.c b/epan/dissectors/packet-netlink-generic.c
new file mode 100644
index 00000000..7c3ca322
--- /dev/null
+++ b/epan/dissectors/packet-netlink-generic.c
@@ -0,0 +1,572 @@
+/* packet-netlink-generic.c
+ * Dissector for Linux Generic Netlink.
+ *
+ * Copyright (c) 2017, Peter Wu <peter@lekensteyn.nl>
+ *
+ * Wireshark - Network traffic analyzer
+ * By Gerald Combs <gerald@wireshark.org>
+ * Copyright 1998 Gerald Combs
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+#include "config.h"
+
+#include <epan/packet.h>
+#include "packet-netlink.h"
+
+/*
+ * Documentation:
+ * https://wiki.linuxfoundation.org/networking/generic_netlink_howto#message-format
+ * include/uapi/linux/netlink.h
+ * include/uapi/linux/genetlink.h
+ *
+ * For the meaning of fields in genlmsghdr, see genlmsg_put in
+ * net/netlink/genetlink.c, note that it has no user-specific message header
+ * (genl_ctrl.hdr_size==0).
+ */
+
+void proto_register_netlink_generic(void);
+void proto_reg_handoff_netlink_generic(void);
+
+typedef struct {
+	/* Values parsed from the attributes (only valid in this packet). */
+	guint16         family_id;
+	const guint8   *family_name;
+} genl_ctrl_info_t;
+
+/* from include/uapi/linux/genetlink.h */
+enum {
+	WS_CTRL_CMD_UNSPEC,
+	WS_CTRL_CMD_NEWFAMILY,
+	WS_CTRL_CMD_DELFAMILY,
+	WS_CTRL_CMD_GETFAMILY,
+	WS_CTRL_CMD_NEWOPS,
+	WS_CTRL_CMD_DELOPS,
+	WS_CTRL_CMD_GETOPS,
+	WS_CTRL_CMD_NEWMCAST_GRP,
+	WS_CTRL_CMD_DELMCAST_GRP,
+	WS_CTRL_CMD_GETMCAST_GRP,
+	WS_CTRL_CMD_GETPOLICY,
+};
+
+enum ws_genl_ctrl_attr {
+	WS_CTRL_ATTR_UNSPEC,
+	WS_CTRL_ATTR_FAMILY_ID,
+	WS_CTRL_ATTR_FAMILY_NAME,
+	WS_CTRL_ATTR_VERSION,
+	WS_CTRL_ATTR_HDRSIZE,
+	WS_CTRL_ATTR_MAXATTR,
+	WS_CTRL_ATTR_OPS,
+	WS_CTRL_ATTR_MCAST_GROUPS,
+	WS_CTRL_ATTR_POLICY,
+	WS_CTRL_ATTR_OP_POLICY,
+	WS_CTRL_ATTR_OP,
+};
+
+enum ws_genl_ctrl_op_attr {
+	WS_CTRL_ATTR_OP_UNSPEC,
+	WS_CTRL_ATTR_OP_ID,
+	WS_CTRL_ATTR_OP_FLAGS,
+};
+
+enum ws_genl_ctrl_group_attr {
+	WS_CTRL_ATTR_MCAST_GRP_UNSPEC,
+	WS_CTRL_ATTR_MCAST_GRP_NAME,
+	WS_CTRL_ATTR_MCAST_GRP_ID,
+};
+
+#define WS_GENL_ID_CTRL 0x10
+#define GENL_CTRL_NAME "nlctrl"
+
+static const value_string genl_ctrl_cmds[] = {
+	{ WS_CTRL_CMD_UNSPEC,           "CTRL_CMD_UNSPEC" },
+	{ WS_CTRL_CMD_NEWFAMILY,        "CTRL_CMD_NEWFAMILY" },
+	{ WS_CTRL_CMD_DELFAMILY,        "CTRL_CMD_DELFAMILY" },
+	{ WS_CTRL_CMD_GETFAMILY,        "CTRL_CMD_GETFAMILY" },
+	{ WS_CTRL_CMD_NEWOPS,           "CTRL_CMD_NEWOPS" },
+	{ WS_CTRL_CMD_DELOPS,           "CTRL_CMD_DELOPS" },
+	{ WS_CTRL_CMD_GETOPS,           "CTRL_CMD_GETOPS" },
+	{ WS_CTRL_CMD_NEWMCAST_GRP,     "CTRL_CMD_NEWMCAST_GRP" },
+	{ WS_CTRL_CMD_DELMCAST_GRP,     "CTRL_CMD_DELMCAST_GRP" },
+	{ WS_CTRL_CMD_GETMCAST_GRP,     "CTRL_CMD_GETMCAST_GRP" },
+	{ WS_CTRL_CMD_GETPOLICY,        "CTRL_CMD_GETPOLICY" },
+	{ 0, NULL }
+};
+
+static const value_string genl_ctrl_attr_vals[] = {
+	{ WS_CTRL_ATTR_UNSPEC,          "CTRL_ATTR_UNSPEC" },
+	{ WS_CTRL_ATTR_FAMILY_ID,       "CTRL_ATTR_FAMILY_ID" },
+	{ WS_CTRL_ATTR_FAMILY_NAME,     "CTRL_ATTR_FAMILY_NAME" },
+	{ WS_CTRL_ATTR_VERSION,         "CTRL_ATTR_VERSION" },
+	{ WS_CTRL_ATTR_HDRSIZE,         "CTRL_ATTR_HDRSIZE" },
+	{ WS_CTRL_ATTR_MAXATTR,         "CTRL_ATTR_MAXATTR" },
+	{ WS_CTRL_ATTR_OPS,             "CTRL_ATTR_OPS" },
+	{ WS_CTRL_ATTR_MCAST_GROUPS,    "CTRL_ATTR_MCAST_GROUPS" },
+	{ WS_CTRL_ATTR_POLICY,          "CTRL_ATTR_POLICY" },
+	{ WS_CTRL_ATTR_OP_POLICY,       "CTRL_ATTR_OP_POLICY" },
+	{ WS_CTRL_ATTR_OP,              "CTRL_ATTR_OP" },
+	{ 0, NULL }
+};
+
+static const value_string genl_ctrl_op_attr_vals[] = {
+	{ WS_CTRL_ATTR_OP_UNSPEC,       "CTRL_ATTR_OP_UNSPEC" },
+	{ WS_CTRL_ATTR_OP_ID,           "CTRL_ATTR_OP_ID" },
+	{ WS_CTRL_ATTR_OP_FLAGS,        "CTRL_ATTR_OP_FLAGS" },
+	{ 0, NULL }
+};
+
+static const value_string genl_ctrl_group_attr_vals[] = {
+	{ WS_CTRL_ATTR_MCAST_GRP_UNSPEC, "CTRL_ATTR_MCAST_GRP_UNSPEC" },
+	{ WS_CTRL_ATTR_MCAST_GRP_NAME,  "CTRL_ATTR_MCAST_GRP_NAME" },
+	{ WS_CTRL_ATTR_MCAST_GRP_ID,    "CTRL_ATTR_MCAST_GRP_ID" },
+	{ 0, NULL }
+};
+
+static dissector_handle_t netlink_generic;
+static dissector_handle_t netlink_generic_ctrl;
+static dissector_table_t genl_dissector_table;
+
+static int proto_netlink_generic;
+
+static int hf_genl_cmd = -1;
+static int hf_genl_ctrl_attr = -1;
+static int hf_genl_ctrl_cmd = -1;
+static int hf_genl_ctrl_family_id = -1;
+static int hf_genl_ctrl_family_name = -1;
+static int hf_genl_ctrl_group_id = -1;
+static int hf_genl_ctrl_group_name = -1;
+static int hf_genl_ctrl_groups_attr = -1;
+static int hf_genl_ctrl_hdrsize = -1;
+static int hf_genl_ctrl_maxattr = -1;
+static int hf_genl_ctrl_op_flags = -1;
+static int hf_genl_ctrl_op_flags_admin_perm = -1;
+static int hf_genl_ctrl_op_flags_cmd_cap_do = -1;
+static int hf_genl_ctrl_op_flags_cmd_cap_dump = -1;
+static int hf_genl_ctrl_op_flags_cmd_cap_haspol = -1;
+static int hf_genl_ctrl_op_flags_uns_admin_perm = -1;
+static int hf_genl_ctrl_op_id = -1;
+static int hf_genl_ctrl_ops_attr = -1;
+static int hf_genl_ctrl_version = -1;
+static int hf_genl_family_id = -1;
+static int hf_genl_reserved = -1;
+static int hf_genl_version = -1;
+
+static gint ett_netlink_generic = -1;
+static gint ett_genl_ctrl_attr = -1;
+static gint ett_genl_ctrl_ops = -1;
+static gint ett_genl_ctrl_ops_attr = -1;
+static gint ett_genl_ctrl_op_flags = -1;
+static gint ett_genl_ctrl_groups = -1;
+static gint ett_genl_ctrl_groups_attr = -1;
+static gint ett_genl_nested_attr = -1;
+
+/*
+ * Maps family IDs (integers) to family names (strings) within a capture file.
+ */
+static wmem_map_t *genl_family_map;
+
+static int * const genl_ctrl_op_flags_fields[] = {
+	&hf_genl_ctrl_op_flags_admin_perm,
+	&hf_genl_ctrl_op_flags_cmd_cap_do,
+	&hf_genl_ctrl_op_flags_cmd_cap_dump,
+	&hf_genl_ctrl_op_flags_cmd_cap_haspol,
+	&hf_genl_ctrl_op_flags_uns_admin_perm,
+	NULL
+};
+
+static int
+dissect_genl_ctrl_ops_attrs(tvbuff_t *tvb, void *data _U_, struct packet_netlink_data *nl_data, proto_tree *tree, int nla_type, int offset, int len)
+{
+	enum ws_genl_ctrl_op_attr type = (enum ws_genl_ctrl_op_attr) nla_type;
+	proto_tree *ptree = proto_tree_get_parent_tree(tree);
+	guint32 value;
+
+	switch (type) {
+	case WS_CTRL_ATTR_OP_UNSPEC:
+		break;
+	case WS_CTRL_ATTR_OP_ID:
+		if (len == 4) {
+			proto_tree_add_item_ret_uint(tree, hf_genl_ctrl_op_id, tvb, offset, 4, nl_data->encoding, &value);
+			proto_item_append_text(tree, ": %u", value);
+			proto_item_append_text(ptree, ", id=%u", value);
+			offset += 4;
+		}
+		break;
+	case WS_CTRL_ATTR_OP_FLAGS:
+		if (len == 4) {
+			guint64 op_flags;
+			/* XXX it would be nice if the flag names are appended to the tree */
+			proto_tree_add_bitmask_with_flags_ret_uint64(tree, tvb, offset, hf_genl_ctrl_op_flags,
+				ett_genl_ctrl_op_flags, genl_ctrl_op_flags_fields, nl_data->encoding, BMT_NO_FALSE, &op_flags);
+			proto_item_append_text(tree, ": 0x%08x", (guint32)op_flags);
+			proto_item_append_text(ptree, ", flags=0x%08x", (guint32)op_flags);
+			offset += 4;
+		}
+		break;
+	}
+
+	return offset;
+}
+
+static int
+dissect_genl_ctrl_groups_attrs(tvbuff_t *tvb, void *data _U_, struct packet_netlink_data *nl_data, proto_tree *tree, int nla_type, int offset, int len)
+{
+	enum ws_genl_ctrl_group_attr type = (enum ws_genl_ctrl_group_attr) nla_type;
+	proto_tree *ptree = proto_tree_get_parent_tree(tree);
+	guint32 value;
+	const guint8 *strval;
+
+	switch (type) {
+	case WS_CTRL_ATTR_MCAST_GRP_UNSPEC:
+		break;
+	case WS_CTRL_ATTR_MCAST_GRP_NAME:
+		proto_tree_add_item_ret_string(tree, hf_genl_ctrl_group_name, tvb, offset, len, ENC_ASCII, wmem_packet_scope(), &strval);
+		proto_item_append_text(tree, ": %s", strval);
+		proto_item_append_text(ptree, ", name=%s", strval);
+		offset += len;
+		break;
+	case WS_CTRL_ATTR_MCAST_GRP_ID:
+		if (len == 4) {
+			proto_tree_add_item_ret_uint(tree, hf_genl_ctrl_group_id, tvb, offset, 4, nl_data->encoding, &value);
+			proto_item_append_text(tree, ": %u", value);
+			proto_item_append_text(ptree, ", id=%u", value);
+			offset += 4;
+		}
+		break;
+	}
+
+	return offset;
+}
+
+static int
+dissect_genl_ctrl_attrs(tvbuff_t *tvb, void *data, struct packet_netlink_data *nl_data, proto_tree *tree, int nla_type, int offset, int len)
+{
+	enum ws_genl_ctrl_attr type = (enum ws_genl_ctrl_attr) nla_type;
+	genl_ctrl_info_t *info = (genl_ctrl_info_t *) data;
+	guint32 value;
+
+	switch (type) {
+	case WS_CTRL_CMD_UNSPEC:
+		break;
+	case WS_CTRL_ATTR_FAMILY_ID:
+		if (len == 2) {
+			proto_tree_add_item_ret_uint(tree, hf_genl_ctrl_family_id, tvb, offset, 2, nl_data->encoding, &value);
+			proto_item_append_text(tree, ": %#x", value);
+			info->family_id = value;
+			offset += 2;
+		}
+		break;
+	case WS_CTRL_ATTR_FAMILY_NAME:
+		proto_tree_add_item_ret_string(tree, hf_genl_ctrl_family_name, tvb, offset, len, ENC_ASCII, wmem_packet_scope(), &info->family_name);
+		proto_item_append_text(tree, ": %s", info->family_name);
+		offset += len;
+		break;
+	case WS_CTRL_ATTR_VERSION:
+		if (len == 4) {
+			proto_tree_add_item_ret_uint(tree, hf_genl_ctrl_version, tvb, offset, 4, nl_data->encoding, &value);
+			proto_item_append_text(tree, ": %u", value);
+			offset += 4;
+		}
+		break;
+	case WS_CTRL_ATTR_HDRSIZE:
+		if (len == 4) {
+			proto_tree_add_item_ret_uint(tree, hf_genl_ctrl_hdrsize, tvb, offset, 4, nl_data->encoding, &value);
+			proto_item_append_text(tree, ": %u", value);
+			offset += 4;
+		}
+		break;
+	case WS_CTRL_ATTR_MAXATTR:
+		if (len == 4) {
+			proto_tree_add_item_ret_uint(tree, hf_genl_ctrl_maxattr, tvb, offset, 4, nl_data->encoding, &value);
+			proto_item_append_text(tree, ": %u", value);
+			offset += 4;
+		}
+		break;
+	case WS_CTRL_ATTR_OPS:
+		offset = dissect_netlink_attributes_array(tvb, hf_genl_ctrl_ops_attr, ett_genl_ctrl_ops, ett_genl_ctrl_ops_attr, info, nl_data, tree, offset, len, dissect_genl_ctrl_ops_attrs);
+		break;
+	case WS_CTRL_ATTR_MCAST_GROUPS:
+		offset = dissect_netlink_attributes_array(tvb, hf_genl_ctrl_groups_attr, ett_genl_ctrl_groups, ett_genl_ctrl_groups_attr, info, nl_data, tree, offset, len, dissect_genl_ctrl_groups_attrs);
+		break;
+	case WS_CTRL_ATTR_POLICY:
+	case WS_CTRL_ATTR_OP_POLICY:
+	case WS_CTRL_ATTR_OP:
+		break;
+	}
+
+	return offset;
+}
+
+static int
+dissect_genl_ctrl(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree _U_, void *data)
+{
+	genl_info_t *genl_info = (genl_info_t *) data;
+	genl_ctrl_info_t info;
+	int offset;
+
+	if (!genl_info) {
+		return 0;
+	}
+
+	info.family_id = 0;
+	info.family_name = NULL;
+
+	offset = dissect_genl_header(tvb, genl_info, genl_info->nl_data, hf_genl_ctrl_cmd);
+
+	/* Return if command has no payload */
+	if (!tvb_reported_length_remaining(tvb, offset))
+	    return offset;
+
+	dissect_netlink_attributes_to_end(tvb, hf_genl_ctrl_attr, ett_genl_ctrl_attr, &info, genl_info->nl_data, genl_info->genl_tree, offset, dissect_genl_ctrl_attrs);
+
+	/*
+	 * Remember association of dynamic ID with the family name such that
+	 * future packets can be linked to a protocol.
+	 * Do not allow overwriting our control protocol.
+	 */
+	if (info.family_id && info.family_id != WS_GENL_ID_CTRL && info.family_name) {
+		wmem_map_insert(genl_family_map, GUINT_TO_POINTER(info.family_id), wmem_strdup(wmem_file_scope(), info.family_name));
+	}
+
+	return tvb_captured_length(tvb);
+}
+
+int dissect_genl_header(tvbuff_t *tvb, genl_info_t *genl_info, struct packet_netlink_data *nl_data, int hf_cmd)
+{
+	int offset = 0;
+
+	if (hf_cmd < 0) {
+		hf_cmd = hf_genl_cmd;
+	}
+	proto_tree_add_item(genl_info->genl_tree, hf_cmd, tvb, offset, 1, ENC_NA);
+	offset++;
+	/* XXX Family dissectors may want to know this */
+	proto_tree_add_item(genl_info->genl_tree, hf_genl_version, tvb, offset, 1, ENC_NA);
+	offset++;
+	proto_tree_add_item(genl_info->genl_tree, hf_genl_reserved, tvb, offset, 2, nl_data->encoding);
+	offset += 2;
+	return offset;
+}
+
+static int
+dissect_netlink_generic(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data)
+{
+	struct packet_netlink_data *nl_data = (struct packet_netlink_data *) data;
+	genl_info_t info;
+	proto_tree *nlmsg_tree;
+	proto_item *pi, *pi_type;
+	const char *family_name;
+	tvbuff_t *next_tvb;
+	int offset = 0;
+
+	DISSECTOR_ASSERT(nl_data && nl_data->magic == PACKET_NETLINK_MAGIC);
+
+	col_set_str(pinfo->cinfo, COL_PROTOCOL, "Netlink generic");
+	col_clear(pinfo->cinfo, COL_INFO);
+
+	pi = proto_tree_add_item(tree, proto_netlink_generic, tvb, 0, -1, ENC_NA);
+	nlmsg_tree = proto_item_add_subtree(pi, ett_netlink_generic);
+
+	/* Netlink message header (nlmsghdr) */
+	offset = dissect_netlink_header(tvb, nlmsg_tree, offset, nl_data->encoding, hf_genl_family_id, &pi_type);
+	family_name = (const char *)wmem_map_lookup(genl_family_map, GUINT_TO_POINTER(nl_data->type));
+	proto_item_append_text(pi_type, " (%s)", family_name ? family_name : "Unknown");
+
+	/* Populate info from Generic Netlink message header (genlmsghdr) */
+	info.nl_data = nl_data;
+	info.genl_tree = nlmsg_tree;
+	info.cmd = tvb_get_guint8(tvb, offset);
+
+	/* Optional user-specific message header and optional message payload. */
+	next_tvb = tvb_new_subset_remaining(tvb, offset);
+	if (family_name) {
+		int ret;
+		/* Invoke subdissector with genlmsghdr present. */
+		ret = dissector_try_string(genl_dissector_table, family_name, next_tvb, pinfo, tree, &info);
+		if (ret) {
+			return ret;
+		}
+	}
+
+	/* No subdissector added the genl header, do it now. */
+	offset = dissect_genl_header(next_tvb, &info, nl_data, -1);
+	if (tvb_reported_length_remaining(tvb, offset)) {
+		next_tvb = tvb_new_subset_remaining(tvb, offset);
+		call_data_dissector(next_tvb, pinfo, tree);
+	}
+
+	return offset;
+}
+
+static void
+genl_init(void)
+{
+	/* Add fixed family entry (0x10 maps to "nlctrl"). */
+	wmem_map_insert(genl_family_map, GUINT_TO_POINTER(WS_GENL_ID_CTRL), GENL_CTRL_NAME);
+}
+
+void
+proto_register_netlink_generic(void)
+{
+	static hf_register_info hf[] = {
+		{ &hf_genl_ctrl_op_id,
+			{ "Operation ID", "genl.ctrl.op_id",
+			  FT_UINT32, BASE_DEC, NULL, 0x00,
+			  NULL, HFILL }
+		},
+		{ &hf_genl_ctrl_op_flags,
+			{ "Operation Flags", "genl.ctrl.op_flags",
+			  FT_UINT32, BASE_HEX, NULL, 0x00,
+			  NULL, HFILL }
+		},
+		{ &hf_genl_ctrl_op_flags_admin_perm,
+			{ "GENL_ADMIN_PERM", "genl.ctrl.op_flags.admin_perm",
+			  FT_BOOLEAN, 32, NULL, 0x00000001,
+			  NULL, HFILL }
+		},
+		{ &hf_genl_ctrl_op_flags_cmd_cap_do,
+			{ "GENL_CMD_CAP_DO", "genl.ctrl.op_flags.cmd_cap_do",
+			  FT_BOOLEAN, 32, NULL, 0x00000002,
+			  NULL, HFILL }
+		},
+		{ &hf_genl_ctrl_op_flags_cmd_cap_dump,
+			{ "GENL_CMD_CAP_DUMP", "genl.ctrl.op_flags.cmd_cap_dump",
+			  FT_BOOLEAN, 32, NULL, 0x00000004,
+			  NULL, HFILL }
+		},
+		{ &hf_genl_ctrl_op_flags_cmd_cap_haspol,
+			{ "GENL_CMD_CAP_HASPOL", "genl.ctrl.op_flags.cmd_cap_haspol",
+			  FT_BOOLEAN, 32, NULL, 0x00000008,
+			  NULL, HFILL }
+		},
+		{ &hf_genl_ctrl_op_flags_uns_admin_perm,
+			{ "GENL_UNS_ADMIN_PERM", "genl.ctrl.op_flags.uns_admin_perm",
+			  FT_BOOLEAN, 32, NULL, 0x00000010,
+			  NULL, HFILL }
+		},
+		{ &hf_genl_ctrl_group_name,
+			{ "Group Name", "genl.ctrl.group_name",
+			  FT_STRINGZ, BASE_NONE, NULL, 0x0,
+			  NULL, HFILL }
+		},
+		{ &hf_genl_ctrl_group_id,
+			{ "Group ID", "genl.ctrl.group_id",
+			  FT_UINT32, BASE_HEX, NULL, 0x0,
+			  NULL, HFILL }
+		},
+		{ &hf_genl_ctrl_family_id,
+			{ "Family ID", "genl.ctrl.family_id",
+			  FT_UINT16, BASE_HEX, NULL, 0x0,
+			  NULL, HFILL }
+		},
+		{ &hf_genl_ctrl_family_name,
+			{ "Family Name", "genl.ctrl.family_name",
+			  FT_STRINGZ, BASE_NONE, NULL, 0x0,
+			  NULL, HFILL }
+		},
+		{ &hf_genl_ctrl_version,
+			{ "Version", "genl.ctrl.version",
+			  FT_UINT32, BASE_DEC, NULL, 0x0,
+			  "Family-specific version number", HFILL }
+		},
+		{ &hf_genl_ctrl_hdrsize,
+			{ "Header Size", "genl.ctrl.hdrsize",
+			  FT_UINT32, BASE_DEC, NULL, 0x0,
+			  "Size of family-specific header", HFILL }
+		},
+		{ &hf_genl_ctrl_maxattr,
+			{ "Maximum Attributes", "genl.ctrl.maxattr",
+			  FT_UINT32, BASE_DEC, NULL, 0x0,
+			  "Maximum number of attributes", HFILL }
+		},
+		{ &hf_genl_ctrl_ops_attr,
+			{ "Type", "genl.ctrl.ops_attr",
+			  FT_UINT16, BASE_DEC, VALS(genl_ctrl_op_attr_vals), NLA_TYPE_MASK,
+			  NULL, HFILL }
+		},
+		{ &hf_genl_ctrl_groups_attr,
+			{ "Type", "genl.ctrl.groups_attr",
+			  FT_UINT16, BASE_DEC, VALS(genl_ctrl_group_attr_vals), NLA_TYPE_MASK,
+			  NULL, HFILL }
+		},
+		{ &hf_genl_ctrl_cmd,
+			{ "Command", "genl.ctrl.cmd",
+			  FT_UINT8, BASE_DEC, VALS(genl_ctrl_cmds), 0x0,
+			  "Generic Netlink command", HFILL }
+		},
+		{ &hf_genl_ctrl_attr,
+			{ "Type", "genl.ctrl_attr",
+			  FT_UINT16, BASE_DEC, VALS(genl_ctrl_attr_vals), NLA_TYPE_MASK,
+			  NULL, HFILL }
+		},
+		{ &hf_genl_family_id,
+			{ "Family ID", "genl.family_id",
+			  FT_UINT8, BASE_HEX, NULL, 0x00,
+			  NULL, HFILL }
+		},
+		{ &hf_genl_cmd,
+			{ "Command", "genl.cmd",
+			  FT_UINT8, BASE_DEC, NULL, 0x00,
+			  "Generic Netlink command", HFILL }
+		},
+		{ &hf_genl_version,
+			{ "Family Version", "genl.version",
+			  FT_UINT8, BASE_DEC, NULL, 0x00,
+			  "Family-specific version", HFILL }
+		},
+		{ &hf_genl_reserved,
+			{ "Reserved", "genl.reserved",
+			  FT_NONE, BASE_NONE, NULL, 0x00,
+			  NULL, HFILL }
+		},
+	};
+
+	static gint *ett[] = {
+		&ett_netlink_generic,
+		&ett_genl_ctrl_attr,
+		&ett_genl_ctrl_ops,
+		&ett_genl_ctrl_ops_attr,
+		&ett_genl_ctrl_op_flags,
+		&ett_genl_ctrl_groups,
+		&ett_genl_ctrl_groups_attr,
+		&ett_genl_nested_attr,
+	};
+
+	proto_netlink_generic = proto_register_protocol("Linux Generic Netlink protocol", "genl", "genl");
+	proto_register_field_array(proto_netlink_generic, hf, array_length(hf));
+	proto_register_subtree_array(ett, array_length(ett));
+
+	netlink_generic = register_dissector("genl", dissect_netlink_generic, proto_netlink_generic);
+	netlink_generic_ctrl = register_dissector("genl_ctrl", dissect_genl_ctrl, proto_netlink_generic);
+	genl_dissector_table = register_dissector_table(
+		"genl.family",
+		"Linux Generic Netlink family name",
+		proto_netlink_generic, FT_STRING,
+		STRING_CASE_SENSITIVE
+	);
+
+	genl_family_map = wmem_map_new_autoreset(wmem_epan_scope(), wmem_file_scope(), g_direct_hash, g_direct_equal);
+
+	register_init_routine(genl_init);
+}
+
+void
+proto_reg_handoff_netlink_generic(void)
+{
+	dissector_add_string("genl.family", GENL_CTRL_NAME, netlink_generic_ctrl);
+	dissector_add_uint("netlink.protocol", WS_NETLINK_GENERIC, netlink_generic);
+}
+
+/*
+ * Editor modelines  -  https://www.wireshark.org/tools/modelines.html
+ *
+ * Local variables:
+ * c-basic-offset: 8
+ * tab-width: 8
+ * indent-tabs-mode: t
+ * End:
+ *
+ * vi: set shiftwidth=8 tabstop=8 noexpandtab:
+ * :indentSize=8:tabSize=8:noTabs=false:
+ */