forked from osmocom/wireshark
2152 lines
68 KiB
C
2152 lines
68 KiB
C
/* packet-netlink-netfilter.c
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 1998 Gerald Combs
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#include "config.h"
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#include <epan/aftypes.h>
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#include <epan/etypes.h>
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#include <epan/packet.h>
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#include "packet-netlink.h"
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void proto_register_netlink_netfilter(void);
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void proto_reg_handoff_netlink_netfilter(void);
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typedef struct {
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packet_info *pinfo;
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guint16 hw_protocol; /* protocol for NFQUEUE packet payloads. */
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} netlink_netfilter_info_t;
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static dissector_handle_t netlink_netfilter;
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static dissector_handle_t nflog_handle;
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static dissector_table_t ethertype_table;
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/* nfnetlink subsystems from <include/uapi/linux/netfilter/nfnetlink.h> */
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enum {
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WS_NFNL_SUBSYS_NONE = 0,
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WS_NFNL_SUBSYS_CTNETLINK = 1,
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WS_NFNL_SUBSYS_CTNETLINK_EXP = 2,
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WS_NFNL_SUBSYS_QUEUE = 3,
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WS_NFNL_SUBSYS_ULOG = 4,
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WS_NFNL_SUBSYS_OSF = 5,
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WS_NFNL_SUBSYS_IPSET = 6,
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WS_NFNL_SUBSYS_ACCT = 7,
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WS_NFNL_SUBSYS_CTNETLINK_TIMEOUT = 8,
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WS_NFNL_SUBSYS_CTHELPER = 9,
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WS_NFNL_SUBSYS_NFTABLES = 10,
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WS_NFNL_SUBSYS_NFT_COMPAT = 11,
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WS_NFNL_SUBSYS_COUNT = 12,
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};
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/* nfnetlink ULOG subsystem types from <include/uapi/linux/netfilter/nfnetlink_log.h> */
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enum ws_nfulnl_msg_types {
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WS_NFULNL_MSG_PACKET = 0,
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WS_NFULNL_MSG_CONFIG = 1
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};
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/* Macros for "hook function responses" from <include/uapi/linux/netfilter.h> */
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enum ws_verdict_types {
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WS_NF_DROP = 0,
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WS_NF_ACCEPT = 1,
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WS_NF_STOLEN = 2,
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WS_NF_QUEUE = 3,
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WS_NF_REPEAT = 4,
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WS_NF_STOP = 5,
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};
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enum ws_nf_inet_hooks {
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WS_NF_INET_PRE_ROUTING = 0,
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WS_NF_INET_LOCAL_IN = 1,
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WS_NF_INET_FORWARD = 2,
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WS_NF_INET_LOCAL_OUT = 3,
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WS_NF_INET_POST_ROUTING = 4,
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};
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/* from <include/uapi/linux/netfilter/nf_conntrack_common.h> */
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enum ws_ip_conntrack_info {
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WS_IP_CT_ESTABLISHED,
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WS_IP_CT_RELATED,
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WS_IP_CT_NEW,
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WS_IP_CT_IS_REPLY,
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WS_IP_CT_ESTABLISHED_REPLY = WS_IP_CT_ESTABLISHED + WS_IP_CT_IS_REPLY,
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WS_IP_CT_RELATED_REPLY = WS_IP_CT_RELATED + WS_IP_CT_IS_REPLY,
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WS_IP_CT_NUMBER,
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};
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enum ws_ip_conntrack_status {
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WS_IPS_EXPECTED_BIT = 0,
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WS_IPS_EXPECTED = (1 << WS_IPS_EXPECTED_BIT),
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WS_IPS_SEEN_REPLY_BIT = 1,
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WS_IPS_SEEN_REPLY = (1 << WS_IPS_SEEN_REPLY_BIT),
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WS_IPS_ASSURED_BIT = 2,
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WS_IPS_ASSURED = (1 << WS_IPS_ASSURED_BIT),
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WS_IPS_CONFIRMED_BIT = 3,
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WS_IPS_CONFIRMED = (1 << WS_IPS_CONFIRMED_BIT),
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WS_IPS_SRC_NAT_BIT = 4,
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WS_IPS_SRC_NAT = (1 << WS_IPS_SRC_NAT_BIT),
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WS_IPS_DST_NAT_BIT = 5,
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WS_IPS_DST_NAT = (1 << WS_IPS_DST_NAT_BIT),
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WS_IPS_SEQ_ADJUST_BIT = 6,
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WS_IPS_SEQ_ADJUST = (1 << WS_IPS_SEQ_ADJUST_BIT),
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WS_IPS_SRC_NAT_DONE_BIT = 7,
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WS_IPS_SRC_NAT_DONE = (1 << WS_IPS_SRC_NAT_DONE_BIT),
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WS_IPS_DST_NAT_DONE_BIT = 8,
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WS_IPS_DST_NAT_DONE = (1 << WS_IPS_DST_NAT_DONE_BIT),
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WS_IPS_DYING_BIT = 9,
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WS_IPS_DYING = (1 << WS_IPS_DYING_BIT),
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WS_IPS_FIXED_TIMEOUT_BIT = 10,
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WS_IPS_FIXED_TIMEOUT = (1 << WS_IPS_FIXED_TIMEOUT_BIT),
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WS_IPS_TEMPLATE_BIT = 11,
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WS_IPS_TEMPLATE = (1 << WS_IPS_TEMPLATE_BIT),
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WS_IPS_UNTRACKED_BIT = 12,
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WS_IPS_UNTRACKED = (1 << WS_IPS_UNTRACKED_BIT),
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WS_IPS_HELPER_BIT = 13,
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WS_IPS_HELPER = (1 << WS_IPS_HELPER_BIT),
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WS_IPS_OFFLOAD_BIT = 14,
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WS_IPS_OFFLOAD = (1 << WS_IPS_OFFLOAD_BIT),
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};
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enum nfexp_flags {
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WS_NF_CT_EXPECT_PERMANENT = (1 << 0),
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WS_NF_CT_EXPECT_INACTIVE = (1 << 1),
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WS_NF_CT_EXPECT_USERSPACE = (1 << 2),
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};
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/* from <include/uapi/linux/netfilter/nf_conntrack_tuple_common.h> */
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enum ws_ip_conntrack_dir {
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WS_IP_CT_DIR_ORIGINAL = 0,
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WS_IP_CT_DIR_REPLY = 1,
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};
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/* nfnetlink QUEUE subsystem types from <include/uapi/linux/netfilter/nfnetlink_queue.h> */
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enum ws_nfqnl_msg_types {
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WS_NFQNL_MSG_PACKET = 0,
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WS_NFQNL_MSG_VERDICT = 1,
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WS_NFQNL_MSG_CONFIG = 2,
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WS_NFQNL_MSG_VERDICT_BATCH = 3
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};
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enum ws_nfqnl_attr_type {
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WS_NFQA_UNSPEC = 0,
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WS_NFQA_PACKET_HDR = 1,
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WS_NFQA_VERDICT_HDR = 2,
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WS_NFQA_MARK = 3,
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WS_NFQA_TIMESTAMP = 4,
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WS_NFQA_IFINDEX_INDEV = 5,
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WS_NFQA_IFINDEX_OUTDEV = 6,
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WS_NFQA_IFINDEX_PHYSINDEV = 7,
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WS_NFQA_IFINDEX_PHYSOUTDEV = 8,
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WS_NFQA_HWADDR = 9,
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WS_NFQA_PAYLOAD = 10,
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WS_NFQA_CT = 11,
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WS_NFQA_CT_INFO = 12,
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WS_NFQA_CAP_LEN = 13,
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WS_NFQA_SKB_INFO = 14,
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WS_NFQA_EXP = 15,
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WS_NFQA_UID = 16,
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WS_NFQA_GID = 17,
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WS_NFQA_SECCTX = 18,
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WS_NFQA_VLAN = 19,
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WS_NFQA_L2HDR = 20,
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};
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enum ws_nfqnl_msg_config_cmds {
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WS_NFQNL_CFG_CMD_NONE = 0,
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WS_NFQNL_CFG_CMD_BIND = 1,
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WS_NFQNL_CFG_CMD_UNBIND = 2,
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WS_NFQNL_CFG_CMD_PF_BIND = 3,
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WS_NFQNL_CFG_CMD_PF_UNBIND = 4,
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};
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enum ws_nfqnl_config_mode {
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WS_NFQNL_COPY_NONE = 0,
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WS_NFQNL_COPY_META = 1,
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WS_NFQNL_COPY_PACKET = 2,
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};
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enum ws_nfqnl_attr_config {
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WS_NFQA_CFG_UNSPEC = 0,
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WS_NFQA_CFG_CMD = 1,
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WS_NFQA_CFG_PARAMS = 2,
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WS_NFQA_CFG_QUEUE_MAXLEN = 3,
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WS_NFQA_CFG_MASK = 4,
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WS_NFQA_CFG_FLAGS = 5,
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};
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/* from <include/uapi/linux/netfilter/nfnetlink_conntrack.h> */
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enum ws_ctattr_tuple {
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WS_CTA_TUPLE_UNSPEC = 0,
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WS_CTA_TUPLE_IP = 1,
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WS_CTA_TUPLE_PROTO = 2,
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WS_CTA_TUPLE_ZONE = 3,
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};
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enum ws_ctattr_ip {
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WS_CTA_IP_UNSPEC = 0,
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WS_CTA_IP_V4_SRC = 1,
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WS_CTA_IP_V4_DST = 2,
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WS_CTA_IP_V6_SRC = 3,
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WS_CTA_IP_V6_DST = 4,
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};
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enum ws_ctattr_l4proto {
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WS_CTA_PROTO_UNSPEC = 0,
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WS_CTA_PROTO_NUM = 1,
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WS_CTA_PROTO_SRC_PORT = 2,
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WS_CTA_PROTO_DST_PORT = 3,
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WS_CTA_PROTO_ICMP_ID = 4,
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WS_CTA_PROTO_ICMP_TYPE = 5,
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WS_CTA_PROTO_ICMP_CODE = 6,
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WS_CTA_PROTO_ICMPV6_ID = 7,
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WS_CTA_PROTO_ICMPV6_TYPE = 8,
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WS_CTA_PROTO_ICMPV6_CODE = 9,
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};
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enum ws_ctnl_exp_msg_types {
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WS_IPCTNL_MSG_EXP_NEW = 0,
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WS_IPCTNL_MSG_EXP_GET = 1,
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WS_IPCTNL_MSG_EXP_DELETE = 2,
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WS_IPCTNL_MSG_EXP_GET_STATS_CPU = 3,
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};
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enum ws_ctattr_expect {
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WS_CTA_EXPECT_UNSPEC = 0,
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WS_CTA_EXPECT_MASTER = 1,
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WS_CTA_EXPECT_TUPLE = 2,
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WS_CTA_EXPECT_MASK = 3,
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WS_CTA_EXPECT_TIMEOUT = 4,
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WS_CTA_EXPECT_ID = 5,
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WS_CTA_EXPECT_HELP_NAME = 6,
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WS_CTA_EXPECT_ZONE = 7,
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WS_CTA_EXPECT_FLAGS = 8,
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WS_CTA_EXPECT_CLASS = 9,
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WS_CTA_EXPECT_NAT = 10,
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WS_CTA_EXPECT_FN = 11,
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};
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enum ws_ctattr_expect_nat {
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WS_CTA_EXPECT_NAT_UNSPEC = 0,
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WS_CTA_EXPECT_NAT_DIR = 1,
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WS_CTA_EXPECT_NAT_TUPLE = 2,
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};
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enum ws_ctattr_type {
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WS_CTA_UNSPEC = 0,
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WS_CTA_TUPLE_ORIG = 1,
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WS_CTA_TUPLE_REPLY = 2,
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WS_CTA_STATUS = 3,
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WS_CTA_PROTOINFO = 4,
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WS_CTA_HELP = 5,
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WS_CTA_NAT_SRC = 6,
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WS_CTA_TIMEOUT = 7,
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WS_CTA_MARK = 8,
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WS_CTA_COUNTERS_ORIG = 9,
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WS_CTA_COUNTERS_REPLY = 10,
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WS_CTA_USE = 11,
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WS_CTA_ID = 12,
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WS_CTA_NAT_DST = 13,
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WS_CTA_TUPLE_MASTER = 14,
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WS_CTA_SEQ_ADJ_ORIG = 15,
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WS_CTA_SEQ_ADJ_REPLY = 16,
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WS_CTA_SECMARK = 17,
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WS_CTA_ZONE = 18,
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WS_CTA_SECCTX = 19,
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WS_CTA_TIMESTAMP = 20,
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WS_CTA_MARK_MASK = 21,
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WS_CTA_LABELS = 22,
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WS_CTA_LABELS_MASK = 23,
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WS_CTA_SYNPROXY = 24,
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};
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enum ws_ctattr_help {
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WS_CTA_HELP_UNSPEC = 0,
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WS_CTA_HELP_NAME = 1,
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WS_CTA_HELP_INFO = 2,
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};
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enum ws_ctattr_seqadj {
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WS_CTA_SEQADJ_UNSPEC = 0,
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WS_CTA_SEQADJ_CORRECTION_POS = 1,
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WS_CTA_SEQADJ_OFFSET_BEFORE = 2,
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WS_CTA_SEQADJ_OFFSET_AFTER = 3,
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};
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/* from <include/uapi/linux/netfilter/ipset/ip_set.h> */
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enum ws_ipset_cmd {
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WS_IPSET_CMD_NONE = 0,
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WS_IPSET_CMD_PROTOCOL = 1,
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WS_IPSET_CMD_CREATE = 2,
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WS_IPSET_CMD_DESTROY = 3,
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WS_IPSET_CMD_FLUSH = 4,
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WS_IPSET_CMD_RENAME = 5,
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WS_IPSET_CMD_SWAP = 6,
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WS_IPSET_CMD_LIST = 7,
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WS_IPSET_CMD_SAVE = 8,
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WS_IPSET_CMD_ADD = 9,
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WS_IPSET_CMD_DEL = 10,
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WS_IPSET_CMD_TEST = 11,
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WS_IPSET_CMD_HEADER = 12,
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WS_IPSET_CMD_TYPE = 13,
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WS_IPSET_CMD_GET_BYNAME = 14,
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WS_IPSET_CMD_GET_BYINDEX = 15,
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};
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/* Attributes at command level */
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enum ws_ipset_attr {
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WS_IPSET_ATTR_PROTOCOL = 1,
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WS_IPSET_ATTR_SETNAME = 2,
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WS_IPSET_ATTR_TYPENAME = 3,
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WS_IPSET_ATTR_REVISION = 4,
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WS_IPSET_ATTR_FAMILY = 5,
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WS_IPSET_ATTR_FLAGS = 6,
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WS_IPSET_ATTR_DATA = 7,
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WS_IPSET_ATTR_ADT = 8,
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WS_IPSET_ATTR_LINENO = 9,
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WS_IPSET_ATTR_PROTOCOL_MIN = 10,
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WS_IPSET_ATTR_INDEX = 11,
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};
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/* CADT-specific attributes (Create/Abstract Data Type) */
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enum ws_ipset_cadt_attr {
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WS_IPSET_ATTR_IP_FROM = 1,
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WS_IPSET_ATTR_IP_TO = 2,
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WS_IPSET_ATTR_CIDR = 3,
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WS_IPSET_ATTR_PORT_FROM = 4,
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WS_IPSET_ATTR_PORT_TO = 5,
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WS_IPSET_ATTR_TIMEOUT = 6,
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WS_IPSET_ATTR_PROTO = 7,
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WS_IPSET_ATTR_CADT_FLAGS = 8,
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WS_IPSET_ATTR_CADT_LINENO = 9,
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WS_IPSET_ATTR_MARK = 10,
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WS_IPSET_ATTR_MARKMASK = 11,
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/* (reserved up to 16) */
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#define WS_IPSET_ATTR_CADT_MAX 16
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WS_IPSET_ATTR_GC = 17,
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WS_IPSET_ATTR_HASHSIZE = 18,
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WS_IPSET_ATTR_MAXELEM = 19,
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WS_IPSET_ATTR_NETMASK = 20,
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WS_IPSET_ATTR_PROBES = 21,
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WS_IPSET_ATTR_RESIZE = 22,
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WS_IPSET_ATTR_SIZE = 23,
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WS_IPSET_ATTR_ELEMENTS = 24,
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WS_IPSET_ATTR_REFERENCES = 25,
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WS_IPSET_ATTR_MEMSIZE = 26,
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};
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/* ADT-specific attrivutes */
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enum ws_ipset_adt_attr {
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WS_IPSET_ATTR_ETHER = 17,
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WS_IPSET_ATTR_NAME = 18,
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WS_IPSET_ATTR_NAMEREF = 19,
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WS_IPSET_ATTR_IP2 = 20,
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WS_IPSET_ATTR_CIDR2 = 21,
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WS_IPSET_ATTR_IP2_TO = 22,
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WS_IPSET_ATTR_IFACE = 23,
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WS_IPSET_ATTR_BYTES = 24,
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WS_IPSET_ATTR_PACKETS = 25,
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WS_IPSET_ATTR_COMMENT = 26,
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WS_IPSET_ATTR_SKBMARK = 27,
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WS_IPSET_ATTR_SKBPRIO = 28,
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WS_IPSET_ATTR_SKBQUEUE = 29,
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WS_IPSET_ATTR_PAD = 30,
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};
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/* IP specific attributes */
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enum ws_ipset_ip_attr {
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WS_IPSET_ATTR_IPADDR_IPV4 = 1,
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WS_IPSET_ATTR_IPADDR_IPV6 = 2,
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};
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static int proto_netlink_netfilter;
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static int hf_ipset_adt_attr = -1;
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static int hf_ipset_adt_attr_comment = -1;
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static int hf_ipset_attr = -1;
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static int hf_ipset_attr_family = -1;
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static int hf_ipset_attr_flags = -1;
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static int hf_ipset_attr_setname = -1;
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static int hf_ipset_attr_typename = -1;
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static int hf_ipset_cadt_attr = -1;
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static int hf_ipset_cadt_attr_cadt_flags = -1;
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static int hf_ipset_cadt_attr_cidr = -1;
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static int hf_ipset_cadt_attr_timeout = -1;
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static int hf_ipset_command = -1;
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static int hf_ipset_ip_attr = -1;
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static int hf_ipset_ip_attr_ipv4 = -1;
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static int hf_ipset_ip_attr_ipv6 = -1;
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static int hf_netlink_netfilter_family = -1;
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static int hf_netlink_netfilter_resid = -1;
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static int hf_netlink_netfilter_subsys = -1;
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static int hf_netlink_netfilter_ulog_type = -1;
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static int hf_netlink_netfilter_version = -1;
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static int hf_nfct_attr = -1;
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static int hf_nfct_attr_id = -1;
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static int hf_nfct_attr_status = -1;
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static int hf_nfct_attr_status_flag_assured = -1;
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static int hf_nfct_attr_status_flag_confirmed = -1;
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static int hf_nfct_attr_status_flag_dst_nat = -1;
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static int hf_nfct_attr_status_flag_dst_nat_done = -1;
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static int hf_nfct_attr_status_flag_dying = -1;
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static int hf_nfct_attr_status_flag_expected = -1;
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static int hf_nfct_attr_status_flag_fixed_timeout = -1;
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static int hf_nfct_attr_status_flag_helper = -1;
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static int hf_nfct_attr_status_flag_offload = -1;
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static int hf_nfct_attr_status_flag_seen_reply = -1;
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static int hf_nfct_attr_status_flag_seq_adjust = -1;
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static int hf_nfct_attr_status_flag_src_nat = -1;
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static int hf_nfct_attr_status_flag_src_nat_done = -1;
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static int hf_nfct_attr_status_flag_template = -1;
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static int hf_nfct_attr_status_flag_untracked = -1;
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static int hf_nfct_attr_timeout = -1;
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static int hf_nfct_help_attr = -1;
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static int hf_nfct_help_attr_help_name = -1;
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static int hf_nfct_seqadj_attr = -1;
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static int hf_nfct_seqadj_attr_correction_pos = -1;
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static int hf_nfct_seqadj_attr_offset_after = -1;
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static int hf_nfct_seqadj_attr_offset_before = -1;
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static int hf_nfct_tuple_attr = -1;
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static int hf_nfct_tuple_ip_attr = -1;
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static int hf_nfct_tuple_ip_attr_ipv4 = -1;
|
|
static int hf_nfct_tuple_ip_attr_ipv6 = -1;
|
|
static int hf_nfct_tuple_proto_attr = -1;
|
|
static int hf_nfct_tuple_proto_dst_port_attr = -1;
|
|
static int hf_nfct_tuple_proto_num_attr = -1;
|
|
static int hf_nfct_tuple_proto_src_port_attr = -1;
|
|
static int hf_nfct_tuple_zone_attr = -1;
|
|
static int hf_nfexp_attr = -1;
|
|
static int hf_nfexp_attr_class = -1;
|
|
static int hf_nfexp_attr_flag_inactive = -1;
|
|
static int hf_nfexp_attr_flag_permanent = -1;
|
|
static int hf_nfexp_attr_flag_userspace = -1;
|
|
static int hf_nfexp_attr_flags = -1;
|
|
static int hf_nfexp_attr_fn = -1;
|
|
static int hf_nfexp_attr_id = -1;
|
|
static int hf_nfexp_attr_timeout = -1;
|
|
static int hf_nfexp_attr_zone = -1;
|
|
static int hf_nfexp_nat_attr = -1;
|
|
static int hf_nfexp_nat_attr_dir = -1;
|
|
static int hf_nfexp_type = -1;
|
|
static int hf_nfq_attr = -1;
|
|
static int hf_nfq_caplen = -1;
|
|
static int hf_nfq_config_attr = -1;
|
|
static int hf_nfq_config_command_command = -1;
|
|
static int hf_nfq_config_command_pf = -1;
|
|
static int hf_nfq_config_flags = -1;
|
|
static int hf_nfq_config_mask = -1;
|
|
static int hf_nfq_config_params_copymode = -1;
|
|
static int hf_nfq_config_params_copyrange = -1;
|
|
static int hf_nfq_config_queue_maxlen = -1;
|
|
static int hf_nfq_ctinfo = -1;
|
|
static int hf_nfq_gid = -1;
|
|
static int hf_nfq_hwaddr_addr = -1;
|
|
static int hf_nfq_hwaddr_len = -1;
|
|
static int hf_nfq_ifindex_indev = -1;
|
|
static int hf_nfq_ifindex_outdev = -1;
|
|
static int hf_nfq_ifindex_physindev = -1;
|
|
static int hf_nfq_ifindex_physoutdev = -1;
|
|
static int hf_nfq_nfmark = -1;
|
|
static int hf_nfq_packet_hook = -1;
|
|
static int hf_nfq_packet_hwprotocol = -1;
|
|
static int hf_nfq_packet_id = -1;
|
|
static int hf_nfq_timestamp = -1;
|
|
static int hf_nfq_type = -1;
|
|
static int hf_nfq_uid = -1;
|
|
static int hf_nfq_verdict_id = -1;
|
|
static int hf_nfq_verdict_verdict = -1;
|
|
|
|
static int ett_netlink_netfilter = -1;
|
|
static int ett_nfct_attr = -1;
|
|
static int ett_nfct_help_attr = -1;
|
|
static int ett_nfct_seqadj_attr = -1;
|
|
static int ett_nfct_status_attr = -1;
|
|
static int ett_nfct_tuple_attr = -1;
|
|
static int ett_nfct_tuple_ip_attr = -1;
|
|
static int ett_nfct_tuple_proto_attr = -1;
|
|
static int ett_nfq_config_attr = -1;
|
|
static int ett_nfq_attr = -1;
|
|
static int ett_nfexp_attr = -1;
|
|
static int ett_nfexp_flags_attr = -1;
|
|
static int ett_nfexp_nat_attr = -1;
|
|
static int ett_ipset_attr = -1;
|
|
static int ett_ipset_cadt_attr = -1;
|
|
static int ett_ipset_adt_attr = -1;
|
|
static int ett_ipset_ip_attr = -1;
|
|
|
|
static int dissect_netlink_netfilter_header(tvbuff_t *tvb, proto_tree *tree, int offset)
|
|
{
|
|
proto_tree_add_item(tree, hf_netlink_netfilter_family, tvb, offset, 1, ENC_NA);
|
|
offset++;
|
|
|
|
proto_tree_add_item(tree, hf_netlink_netfilter_version, tvb, offset, 1, ENC_NA);
|
|
offset++;
|
|
|
|
proto_tree_add_item(tree, hf_netlink_netfilter_resid, tvb, offset, 2, ENC_BIG_ENDIAN);
|
|
offset += 2;
|
|
|
|
return offset;
|
|
}
|
|
|
|
/* tuple attribute, used by EXP and QUEUE */
|
|
|
|
static const value_string nfct_tuple_attr_vals[] = {
|
|
{ WS_CTA_TUPLE_IP, "IP address" },
|
|
{ WS_CTA_TUPLE_PROTO, "L4 protocol info" },
|
|
{ WS_CTA_TUPLE_ZONE, "Zone" },
|
|
{ 0, NULL }
|
|
};
|
|
|
|
static const value_string nfct_tuple_ip_attr_vals[] = {
|
|
{ WS_CTA_IP_V4_SRC, "IPv4 source address" },
|
|
{ WS_CTA_IP_V4_DST, "IPv4 destination address" },
|
|
{ WS_CTA_IP_V6_SRC, "IPv6 source address" },
|
|
{ WS_CTA_IP_V6_DST, "IPv6 destination address" },
|
|
{ 0, NULL }
|
|
};
|
|
|
|
static const value_string nfct_tuple_l4proto_attr_vals[] = {
|
|
{ WS_CTA_PROTO_NUM, "IP protocol number" },
|
|
{ WS_CTA_PROTO_SRC_PORT, "Source port" },
|
|
{ WS_CTA_PROTO_DST_PORT, "Destination port" },
|
|
{ WS_CTA_PROTO_ICMP_ID, "ICMPv4 ID" },
|
|
{ WS_CTA_PROTO_ICMP_TYPE, "ICMPv4 type" },
|
|
{ WS_CTA_PROTO_ICMP_CODE, "ICMPv4 code" },
|
|
{ WS_CTA_PROTO_ICMPV6_ID, "ICMPv6 ID" },
|
|
{ WS_CTA_PROTO_ICMPV6_TYPE, "ICMPv6 type" },
|
|
{ WS_CTA_PROTO_ICMPV6_CODE, "ICMPv6 code" },
|
|
{ 0, NULL }
|
|
};
|
|
|
|
static int
|
|
dissect_nfct_tuple_proto_attrs(tvbuff_t *tvb, void *data _U_, struct packet_netlink_data *nl_data _U_, proto_tree *tree, int nla_type, int offset, int len)
|
|
{
|
|
enum ws_ctattr_ip type = (enum ws_ctattr_ip) nla_type & NLA_TYPE_MASK;
|
|
|
|
switch (type) {
|
|
case WS_CTA_PROTO_NUM:
|
|
proto_tree_add_item(tree, hf_nfct_tuple_proto_num_attr, tvb, offset, len, ENC_BIG_ENDIAN);
|
|
return 1;
|
|
|
|
case WS_CTA_PROTO_SRC_PORT:
|
|
proto_tree_add_item(tree, hf_nfct_tuple_proto_src_port_attr, tvb, offset, len, ENC_BIG_ENDIAN);
|
|
return 1;
|
|
|
|
case WS_CTA_PROTO_DST_PORT:
|
|
proto_tree_add_item(tree, hf_nfct_tuple_proto_dst_port_attr, tvb, offset, len, ENC_BIG_ENDIAN);
|
|
return 1;
|
|
|
|
default:
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
static int
|
|
dissect_nfct_tuple_ip_attrs(tvbuff_t *tvb, void *data _U_, struct packet_netlink_data *nl_data _U_, proto_tree *tree, int nla_type, int offset, int len)
|
|
{
|
|
enum ws_ctattr_ip type = (enum ws_ctattr_ip) nla_type & NLA_TYPE_MASK;
|
|
|
|
switch (type) {
|
|
case WS_CTA_IP_V4_SRC:
|
|
case WS_CTA_IP_V4_DST:
|
|
proto_tree_add_item(tree, hf_nfct_tuple_ip_attr_ipv4, tvb, offset, len, ENC_BIG_ENDIAN);
|
|
return 1;
|
|
|
|
case WS_CTA_IP_V6_SRC:
|
|
case WS_CTA_IP_V6_DST:
|
|
proto_tree_add_item(tree, hf_nfct_tuple_ip_attr_ipv6, tvb, offset, len, ENC_NA);
|
|
return 1;
|
|
|
|
default:
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
static int
|
|
dissect_nfct_tuple_attrs(tvbuff_t *tvb, void *data, struct packet_netlink_data *nl_data, proto_tree *tree, int nla_type, int offset, int len)
|
|
{
|
|
enum ws_ctattr_tuple type = (enum ws_ctattr_tuple) nla_type & NLA_TYPE_MASK;
|
|
netlink_netfilter_info_t *info = (netlink_netfilter_info_t *) data;
|
|
|
|
switch (type) {
|
|
case WS_CTA_TUPLE_IP:
|
|
if (nla_type & NLA_F_NESTED)
|
|
return dissect_netlink_attributes(tvb, hf_nfct_tuple_ip_attr, ett_nfct_tuple_ip_attr, info, nl_data,
|
|
tree, offset, len, dissect_nfct_tuple_ip_attrs);
|
|
return 0;
|
|
|
|
case WS_CTA_TUPLE_PROTO:
|
|
if (nla_type & NLA_F_NESTED)
|
|
return dissect_netlink_attributes(tvb, hf_nfct_tuple_proto_attr, ett_nfct_tuple_proto_attr, info, nl_data,
|
|
tree, offset, len, dissect_nfct_tuple_proto_attrs);
|
|
return 0;
|
|
|
|
case WS_CTA_TUPLE_ZONE:
|
|
proto_tree_add_item(tree, hf_nfct_tuple_zone_attr, tvb, offset, len, ENC_BIG_ENDIAN);
|
|
return 1;
|
|
|
|
default:
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
/* conntrack attributes, used by QUEUE and CT */
|
|
|
|
static const value_string nfct_attr_vals[] = {
|
|
{ WS_CTA_TUPLE_ORIG, "Original IP tuple" },
|
|
{ WS_CTA_TUPLE_REPLY, "Reply IP tuple" },
|
|
{ WS_CTA_STATUS, "Connection status" },
|
|
{ WS_CTA_PROTOINFO, "Protocol-specific info" },
|
|
{ WS_CTA_HELP, "Helper" },
|
|
{ WS_CTA_NAT_SRC, "SNAT setup" },
|
|
{ WS_CTA_TIMEOUT, "Timeout" },
|
|
{ WS_CTA_MARK, "Mark" },
|
|
{ WS_CTA_COUNTERS_ORIG, "COUNTERS_ORIG" },
|
|
{ WS_CTA_COUNTERS_REPLY, "COUNTERS_REPLY" },
|
|
{ WS_CTA_USE, "Use count" },
|
|
{ WS_CTA_ID, "ID" },
|
|
{ WS_CTA_NAT_DST, "DNAT setup" },
|
|
{ WS_CTA_TUPLE_MASTER, "Master IP tuple" },
|
|
{ WS_CTA_SEQ_ADJ_ORIG, "Sequence number adjustment (original direction)" },
|
|
{ WS_CTA_SEQ_ADJ_REPLY, "Sequence number adjustment (reply direction)" },
|
|
{ WS_CTA_SECMARK, "Security mark" },
|
|
{ WS_CTA_ZONE, "Zone" },
|
|
{ WS_CTA_SECCTX, "Security context" },
|
|
{ WS_CTA_TIMESTAMP, "Timestamp" },
|
|
{ WS_CTA_MARK_MASK, "Mark mask" },
|
|
{ WS_CTA_LABELS, "LABELS" },
|
|
{ WS_CTA_LABELS_MASK, "LABELS_MASK" },
|
|
{ WS_CTA_SYNPROXY, "SYNPROXY" },
|
|
{ 0, NULL }
|
|
};
|
|
|
|
static const value_string nfct_help_attr_vals[] = {
|
|
{ WS_CTA_HELP_NAME, "Helper name" },
|
|
{ WS_CTA_HELP_INFO, "Helper info" },
|
|
{ 0, NULL }
|
|
};
|
|
|
|
static const value_string nfct_seqadj_attr_vals[] = {
|
|
{ WS_CTA_SEQADJ_UNSPEC, "Unspecified" },
|
|
{ WS_CTA_SEQADJ_CORRECTION_POS, "Correction position" },
|
|
{ WS_CTA_SEQADJ_OFFSET_BEFORE, "Offset before" },
|
|
{ WS_CTA_SEQADJ_OFFSET_AFTER, "Offset after" },
|
|
{ 0, NULL }
|
|
};
|
|
|
|
static int * const hf_nfct_attr_status_flags[] = {
|
|
&hf_nfct_attr_status_flag_offload,
|
|
&hf_nfct_attr_status_flag_helper,
|
|
&hf_nfct_attr_status_flag_untracked,
|
|
&hf_nfct_attr_status_flag_template,
|
|
&hf_nfct_attr_status_flag_fixed_timeout,
|
|
&hf_nfct_attr_status_flag_dying,
|
|
&hf_nfct_attr_status_flag_dst_nat_done,
|
|
&hf_nfct_attr_status_flag_src_nat_done,
|
|
&hf_nfct_attr_status_flag_seq_adjust,
|
|
&hf_nfct_attr_status_flag_dst_nat,
|
|
&hf_nfct_attr_status_flag_src_nat,
|
|
&hf_nfct_attr_status_flag_confirmed,
|
|
&hf_nfct_attr_status_flag_assured,
|
|
&hf_nfct_attr_status_flag_seen_reply,
|
|
&hf_nfct_attr_status_flag_expected,
|
|
NULL
|
|
};
|
|
|
|
static int
|
|
dissect_nfct_help_attrs(tvbuff_t *tvb, void *data _U_, struct packet_netlink_data *nl_data _U_, proto_tree *tree, int nla_type, int offset, int len)
|
|
{
|
|
enum ws_ctattr_help type = (enum ws_ctattr_help) nla_type & NLA_TYPE_MASK;
|
|
|
|
switch (type) {
|
|
case WS_CTA_HELP_NAME:
|
|
proto_tree_add_item(tree, hf_nfct_help_attr_help_name, tvb, offset, len, ENC_UTF_8);
|
|
return 1;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
dissect_nfct_seqadj_attrs(tvbuff_t *tvb, void *data _U_, struct packet_netlink_data *nl_data _U_, proto_tree *tree, int nla_type, int offset, int len)
|
|
{
|
|
enum ws_ctattr_seqadj type = (enum ws_ctattr_seqadj) nla_type & NLA_TYPE_MASK;
|
|
|
|
switch (type) {
|
|
case WS_CTA_SEQADJ_CORRECTION_POS:
|
|
proto_tree_add_item(tree, hf_nfct_seqadj_attr_correction_pos, tvb, offset, len, ENC_BIG_ENDIAN);
|
|
return 1;
|
|
|
|
case WS_CTA_SEQADJ_OFFSET_BEFORE:
|
|
proto_tree_add_item(tree, hf_nfct_seqadj_attr_offset_before, tvb, offset, len, ENC_BIG_ENDIAN);
|
|
return 1;
|
|
|
|
case WS_CTA_SEQADJ_OFFSET_AFTER:
|
|
proto_tree_add_item(tree, hf_nfct_seqadj_attr_offset_after, tvb, offset, len, ENC_BIG_ENDIAN);
|
|
return 1;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
dissect_nfct_attrs(tvbuff_t *tvb, void *data, struct packet_netlink_data *nl_data, proto_tree *tree, int nla_type, int offset, int len)
|
|
{
|
|
enum ws_ctattr_type type = (enum ws_ctattr_type) nla_type & NLA_TYPE_MASK;
|
|
netlink_netfilter_info_t *info = (netlink_netfilter_info_t *) data;
|
|
|
|
switch (type) {
|
|
case WS_CTA_STATUS:
|
|
proto_tree_add_bitmask(tree, tvb, offset, hf_nfct_attr_status,
|
|
ett_nfct_status_attr, hf_nfct_attr_status_flags, ENC_BIG_ENDIAN);
|
|
return 1;
|
|
|
|
case WS_CTA_TIMEOUT:
|
|
proto_tree_add_item(tree, hf_nfct_attr_timeout, tvb, offset, len, ENC_BIG_ENDIAN);
|
|
return 1;
|
|
|
|
case WS_CTA_ID:
|
|
proto_tree_add_item(tree, hf_nfct_attr_id, tvb, offset, len, ENC_BIG_ENDIAN);
|
|
return 1;
|
|
|
|
case WS_CTA_HELP:
|
|
if (nla_type & NLA_F_NESTED)
|
|
return dissect_netlink_attributes(tvb, hf_nfct_help_attr, ett_nfct_help_attr, info, nl_data,
|
|
tree, offset, len, dissect_nfct_help_attrs);
|
|
return 0;
|
|
|
|
case WS_CTA_SEQ_ADJ_ORIG:
|
|
case WS_CTA_SEQ_ADJ_REPLY:
|
|
if (nla_type & NLA_F_NESTED)
|
|
return dissect_netlink_attributes(tvb, hf_nfct_seqadj_attr, ett_nfct_seqadj_attr, info, nl_data,
|
|
tree, offset, len, dissect_nfct_seqadj_attrs);
|
|
return 0;
|
|
|
|
case WS_CTA_TUPLE_ORIG:
|
|
case WS_CTA_TUPLE_REPLY:
|
|
case WS_CTA_TUPLE_MASTER:
|
|
if (nla_type & NLA_F_NESTED)
|
|
return dissect_netlink_attributes(tvb, hf_nfct_tuple_attr, ett_nfct_tuple_attr, info, nl_data,
|
|
tree, offset, len, dissect_nfct_tuple_attrs);
|
|
return 0;
|
|
|
|
default:
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
/* CT - main */
|
|
|
|
static int
|
|
dissect_netfilter_ct(tvbuff_t *tvb, netlink_netfilter_info_t *info, struct packet_netlink_data *nl_data, proto_tree *tree, int offset)
|
|
{
|
|
offset = dissect_netlink_netfilter_header(tvb, tree, offset);
|
|
return dissect_netlink_attributes_to_end(tvb, hf_nfct_attr, ett_nfct_attr, info, nl_data,
|
|
tree, offset, dissect_nfct_attrs);
|
|
}
|
|
|
|
/* EXP */
|
|
|
|
static const value_string nfexp_type_vals[] = {
|
|
{ WS_IPCTNL_MSG_EXP_NEW, "New" },
|
|
{ WS_IPCTNL_MSG_EXP_GET, "Get" },
|
|
{ WS_IPCTNL_MSG_EXP_DELETE, "Delete" },
|
|
{ WS_IPCTNL_MSG_EXP_GET_STATS_CPU, "Get CPU stats" },
|
|
{ 0, NULL }
|
|
};
|
|
|
|
static const value_string nfexp_attr_vals[] = {
|
|
{ WS_CTA_EXPECT_MASTER, "Master IP tuple" },
|
|
{ WS_CTA_EXPECT_TUPLE, "IP tuple" },
|
|
{ WS_CTA_EXPECT_MASK, "IP mask tuple" },
|
|
{ WS_CTA_EXPECT_TIMEOUT, "Timeout" },
|
|
{ WS_CTA_EXPECT_ID, "ID" },
|
|
{ WS_CTA_EXPECT_HELP_NAME, "Helper name" },
|
|
{ WS_CTA_EXPECT_ZONE, "Zone" },
|
|
{ WS_CTA_EXPECT_FLAGS, "Flags" },
|
|
{ WS_CTA_EXPECT_CLASS, "Class" },
|
|
{ WS_CTA_EXPECT_NAT, "NAT" },
|
|
{ WS_CTA_EXPECT_FN, "Expect function" },
|
|
{ 0, NULL }
|
|
};
|
|
|
|
static const value_string nfexp_nat_attr_vals[] = {
|
|
{ WS_CTA_EXPECT_NAT_DIR, "Direction" },
|
|
{ WS_CTA_EXPECT_NAT_TUPLE, "IP tuple" },
|
|
{ 0, NULL }
|
|
};
|
|
|
|
static const value_string nfexp_conntrack_dir_vals[] = {
|
|
{ WS_IP_CT_DIR_ORIGINAL, "Original direction" },
|
|
{ WS_IP_CT_DIR_REPLY, "Reply direction" },
|
|
{ 0, NULL }
|
|
};
|
|
|
|
static int
|
|
dissect_nfexp_nat_attrs(tvbuff_t *tvb, void *data, struct packet_netlink_data *nl_data, proto_tree *tree, int nla_type, int offset, int len)
|
|
{
|
|
enum ws_ctattr_expect type = (enum ws_ctattr_expect) nla_type & NLA_TYPE_MASK;
|
|
netlink_netfilter_info_t *info = (netlink_netfilter_info_t *) data;
|
|
|
|
switch (type) {
|
|
case WS_CTA_EXPECT_NAT_DIR:
|
|
proto_tree_add_item(tree, hf_nfexp_nat_attr_dir, tvb, offset, len, ENC_BIG_ENDIAN);
|
|
return 1;
|
|
|
|
case WS_CTA_EXPECT_NAT_TUPLE:
|
|
if (nla_type & NLA_F_NESTED)
|
|
return dissect_netlink_attributes(tvb, hf_nfct_tuple_attr, ett_nfct_tuple_attr, info, nl_data,
|
|
tree, offset, len, dissect_nfct_tuple_attrs);
|
|
return 0;
|
|
|
|
default:
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
/* CTA_EXPECT_FLAGS bitfield */
|
|
static int * const hf_nfexp_attr_flags_bitfield[] = {
|
|
&hf_nfexp_attr_flag_userspace,
|
|
&hf_nfexp_attr_flag_inactive,
|
|
&hf_nfexp_attr_flag_permanent,
|
|
NULL
|
|
};
|
|
|
|
static int
|
|
dissect_nfexp_attrs(tvbuff_t *tvb, void *data, struct packet_netlink_data *nl_data, proto_tree *tree, int nla_type, int offset, int len)
|
|
{
|
|
enum ws_ctattr_expect type = (enum ws_ctattr_expect) nla_type & NLA_TYPE_MASK;
|
|
netlink_netfilter_info_t *info = (netlink_netfilter_info_t *) data;
|
|
|
|
switch (type) {
|
|
case WS_CTA_EXPECT_TUPLE:
|
|
case WS_CTA_EXPECT_MASK:
|
|
case WS_CTA_EXPECT_MASTER:
|
|
if (nla_type & NLA_F_NESTED)
|
|
return dissect_netlink_attributes(tvb, hf_nfct_tuple_attr, ett_nfct_tuple_attr, info, nl_data,
|
|
tree, offset, len, dissect_nfct_tuple_attrs);
|
|
return 0;
|
|
|
|
case WS_CTA_EXPECT_NAT:
|
|
if (nla_type & NLA_F_NESTED)
|
|
return dissect_netlink_attributes(tvb, hf_nfexp_nat_attr, ett_nfexp_nat_attr, info, nl_data,
|
|
tree, offset, len, dissect_nfexp_nat_attrs);
|
|
return 0;
|
|
|
|
case WS_CTA_EXPECT_TIMEOUT:
|
|
proto_tree_add_item(tree, hf_nfexp_attr_timeout, tvb, offset, len, ENC_BIG_ENDIAN);
|
|
return 1;
|
|
|
|
case WS_CTA_EXPECT_ID:
|
|
proto_tree_add_item(tree, hf_nfexp_attr_id, tvb, offset, len, ENC_BIG_ENDIAN);
|
|
return 1;
|
|
|
|
case WS_CTA_EXPECT_CLASS:
|
|
proto_tree_add_item(tree, hf_nfexp_attr_class, tvb, offset, len, ENC_BIG_ENDIAN);
|
|
return 1;
|
|
|
|
case WS_CTA_EXPECT_ZONE:
|
|
proto_tree_add_item(tree, hf_nfexp_attr_zone, tvb, offset, len, ENC_BIG_ENDIAN);
|
|
return 1;
|
|
|
|
case WS_CTA_EXPECT_FN:
|
|
proto_tree_add_item(tree, hf_nfexp_attr_fn, tvb, offset, len, ENC_UTF_8);
|
|
return 1;
|
|
|
|
case WS_CTA_EXPECT_FLAGS:
|
|
proto_tree_add_bitmask(tree, tvb, offset, hf_nfexp_attr_flags,
|
|
ett_nfexp_flags_attr, hf_nfexp_attr_flags_bitfield, ENC_BIG_ENDIAN);
|
|
return 1;
|
|
|
|
default:
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
/* EXP - main */
|
|
|
|
static int
|
|
dissect_netfilter_exp(tvbuff_t *tvb, netlink_netfilter_info_t *info, struct packet_netlink_data *nl_data, proto_tree *tree, int offset)
|
|
{
|
|
//enum ws_ctnl_exp_msg_types type = (enum ws_ctnl_exp_msg_types) (info->data->type & 0xff);
|
|
|
|
offset = dissect_netlink_netfilter_header(tvb, tree, offset);
|
|
return dissect_netlink_attributes_to_end(tvb, hf_nfexp_attr, ett_nfexp_attr, info, nl_data,
|
|
tree, offset, dissect_nfexp_attrs);
|
|
}
|
|
|
|
/* QUEUE */
|
|
|
|
/* QUEUE - Config */
|
|
|
|
static const value_string nfq_type_vals[] = {
|
|
{ WS_NFQNL_MSG_PACKET, "Packet" },
|
|
{ WS_NFQNL_MSG_VERDICT, "Verdict" },
|
|
{ WS_NFQNL_MSG_CONFIG, "Config" },
|
|
{ WS_NFQNL_MSG_VERDICT_BATCH, "Verdict (batch)" },
|
|
{ 0, NULL }
|
|
};
|
|
|
|
static const value_string nfq_config_command_vals[] = {
|
|
{ WS_NFQNL_CFG_CMD_NONE, "None" },
|
|
{ WS_NFQNL_CFG_CMD_BIND, "Bind" },
|
|
{ WS_NFQNL_CFG_CMD_UNBIND, "Unbind" },
|
|
{ WS_NFQNL_CFG_CMD_PF_BIND, "PF bind" },
|
|
{ WS_NFQNL_CFG_CMD_PF_UNBIND, "PF unbind" },
|
|
{ 0, NULL }
|
|
};
|
|
|
|
static const value_string nfq_config_attr_vals[] = {
|
|
{ WS_NFQA_CFG_UNSPEC, "Unspecified" },
|
|
{ WS_NFQA_CFG_CMD, "Command" },
|
|
{ WS_NFQA_CFG_PARAMS, "Parameters" },
|
|
{ WS_NFQA_CFG_QUEUE_MAXLEN, "Maximum queue length" },
|
|
{ WS_NFQA_CFG_MASK, "Mask" },
|
|
{ WS_NFQA_CFG_FLAGS, "Flags" },
|
|
{ 0, NULL }
|
|
};
|
|
|
|
static const value_string nfq_config_mode_vals[] = {
|
|
{ WS_NFQNL_COPY_NONE, "None" },
|
|
{ WS_NFQNL_COPY_META, "Meta" },
|
|
{ WS_NFQNL_COPY_PACKET, "Packet" },
|
|
{ 0, NULL }
|
|
};
|
|
|
|
static int
|
|
dissect_nfq_config_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_nfqnl_attr_config type = (enum ws_nfqnl_attr_config) nla_type;
|
|
|
|
switch (type) {
|
|
case WS_NFQA_CFG_UNSPEC:
|
|
break;
|
|
|
|
case WS_NFQA_CFG_CMD:
|
|
if (len == 4) {
|
|
proto_tree_add_item(tree, hf_nfq_config_command_command, tvb, offset, 1, ENC_NA);
|
|
offset += 2; /* skip command and 1 byte padding. */
|
|
|
|
proto_tree_add_item(tree, hf_nfq_config_command_pf, tvb, offset, 2, ENC_BIG_ENDIAN);
|
|
offset += 2;
|
|
}
|
|
break;
|
|
|
|
case WS_NFQA_CFG_PARAMS:
|
|
if (len == 5) {
|
|
proto_tree_add_item(tree, hf_nfq_config_params_copyrange, tvb, offset, 4, ENC_BIG_ENDIAN);
|
|
offset += 4;
|
|
|
|
proto_tree_add_item(tree, hf_nfq_config_params_copymode, tvb, offset, 1, ENC_NA);
|
|
offset++;
|
|
}
|
|
break;
|
|
|
|
case WS_NFQA_CFG_QUEUE_MAXLEN:
|
|
if (len == 4) {
|
|
proto_tree_add_item(tree, hf_nfq_config_queue_maxlen, tvb, offset, 4, nl_data->encoding);
|
|
offset += 4;
|
|
}
|
|
break;
|
|
|
|
case WS_NFQA_CFG_MASK:
|
|
if (len == 4) {
|
|
proto_tree_add_item(tree, hf_nfq_config_mask, tvb, offset, 4, nl_data->encoding);
|
|
offset += 4;
|
|
}
|
|
break;
|
|
|
|
case WS_NFQA_CFG_FLAGS:
|
|
if (len == 4) {
|
|
proto_tree_add_item(tree, hf_nfq_config_flags, tvb, offset, 4, nl_data->encoding);
|
|
offset += 4;
|
|
}
|
|
break;
|
|
}
|
|
|
|
return offset;
|
|
}
|
|
|
|
/* QUEUE - Packet and verdict */
|
|
|
|
static const value_string nfq_attr_vals[] = {
|
|
{ WS_NFQA_UNSPEC, "Unspecified" },
|
|
{ WS_NFQA_PACKET_HDR, "Packet header" },
|
|
{ WS_NFQA_VERDICT_HDR, "Verdict header" },
|
|
{ WS_NFQA_MARK, "Mark" },
|
|
{ WS_NFQA_TIMESTAMP, "Timestamp" },
|
|
{ WS_NFQA_IFINDEX_INDEV, "NFQA_IFINDEX_INDEV" },
|
|
{ WS_NFQA_IFINDEX_OUTDEV, "NFQA_IFINDEX_OUTDEV" },
|
|
{ WS_NFQA_IFINDEX_PHYSINDEV, "NFQA_IFINDEX_PHYSINDEV" },
|
|
{ WS_NFQA_IFINDEX_PHYSOUTDEV, "NFQA_IFINDEX_PHYSOUTDEV" },
|
|
{ WS_NFQA_HWADDR, "Hardware address" },
|
|
{ WS_NFQA_PAYLOAD, "Payload" },
|
|
{ WS_NFQA_CT, "NFQA_CT" },
|
|
{ WS_NFQA_CT_INFO, "Conntrack info" },
|
|
{ WS_NFQA_CAP_LEN, "Length of captured packet" },
|
|
{ WS_NFQA_SKB_INFO, "SKB meta information" },
|
|
{ WS_NFQA_EXP, "Conntrack expectation" },
|
|
{ WS_NFQA_UID, "SK UID" },
|
|
{ WS_NFQA_GID, "SK GID" },
|
|
{ WS_NFQA_SECCTX, "Security context string" },
|
|
{ WS_NFQA_VLAN, "Packet VLAN info" },
|
|
{ WS_NFQA_L2HDR, "Full L2 header" },
|
|
{ 0, NULL }
|
|
};
|
|
|
|
static const value_string nfq_verdict_vals[] = {
|
|
{ WS_NF_DROP, "DROP" },
|
|
{ WS_NF_ACCEPT, "ACCEPT" },
|
|
{ WS_NF_STOLEN, "STOLEN" },
|
|
{ WS_NF_QUEUE, "QUEUE" },
|
|
{ WS_NF_REPEAT, "REPEAT" },
|
|
{ WS_NF_STOP, "STOP" },
|
|
{ 0, NULL }
|
|
};
|
|
|
|
const value_string netfilter_hooks_vals[] = {
|
|
{ WS_NF_INET_PRE_ROUTING, "Pre-routing" },
|
|
{ WS_NF_INET_LOCAL_IN, "Local in" },
|
|
{ WS_NF_INET_FORWARD, "Forward" },
|
|
{ WS_NF_INET_LOCAL_OUT, "Local out" },
|
|
{ WS_NF_INET_POST_ROUTING, "Post-routing" },
|
|
{ 0, NULL }
|
|
};
|
|
|
|
const value_string nfproto_family_vals[] = {
|
|
{ WS_NFPROTO_UNSPEC, "Unspecified" },
|
|
{ WS_NFPROTO_INET, "IPv4/IPv6" },
|
|
{ WS_NFPROTO_IPV4, "IPv4" },
|
|
{ WS_NFPROTO_ARP, "ARP" },
|
|
{ WS_NFPROTO_NETDEV, "Netdev" },
|
|
{ WS_NFPROTO_BRIDGE, "Bridge" },
|
|
{ WS_NFPROTO_IPV6, "IPv6" },
|
|
{ WS_NFPROTO_DECNET, "DECNET" },
|
|
{ 0, NULL }
|
|
};
|
|
|
|
static const value_string nfq_ctinfo_vals[] = {
|
|
{ WS_IP_CT_ESTABLISHED, "ESTABLISHED" },
|
|
{ WS_IP_CT_RELATED, "RELATED" },
|
|
{ WS_IP_CT_NEW, "NEW" },
|
|
{ WS_IP_CT_IS_REPLY, "IS_REPLY" },
|
|
/* { WS_IP_CT_ESTABLISHED_REPLY, "ESTABLISHED_REPLY" }, XXX - duplicate of WS_IP_CT_ESTABLISHED */
|
|
{ WS_IP_CT_RELATED_REPLY, "RELATED_REPLY" },
|
|
{ WS_IP_CT_NUMBER, "NUMBER" },
|
|
{ 0, NULL }
|
|
};
|
|
|
|
static int
|
|
dissect_nfq_attrs(tvbuff_t *tvb, void *data, struct packet_netlink_data *nl_data, proto_tree *tree, int nla_type, int offset, int len)
|
|
{
|
|
enum ws_nfqnl_attr_type type = (enum ws_nfqnl_attr_type) nla_type & NLA_TYPE_MASK;
|
|
netlink_netfilter_info_t *info = (netlink_netfilter_info_t *) data;
|
|
|
|
switch (type) {
|
|
case WS_NFQA_UNSPEC:
|
|
break;
|
|
|
|
case WS_NFQA_PACKET_HDR:
|
|
if (len == 7) {
|
|
proto_tree_add_item(tree, hf_nfq_packet_id, tvb, offset, 4, ENC_BIG_ENDIAN);
|
|
offset += 4;
|
|
|
|
proto_tree_add_item(tree, hf_nfq_packet_hwprotocol, tvb, offset, 2, ENC_BIG_ENDIAN);
|
|
info->hw_protocol = tvb_get_ntohs(tvb, offset);
|
|
offset += 2;
|
|
|
|
proto_tree_add_item(tree, hf_nfq_packet_hook, tvb, offset, 1, ENC_NA);
|
|
offset++;
|
|
}
|
|
break;
|
|
|
|
case WS_NFQA_VERDICT_HDR:
|
|
if (len == 8) {
|
|
proto_tree_add_item(tree, hf_nfq_verdict_verdict, tvb, offset, 4, ENC_BIG_ENDIAN);
|
|
offset += 4;
|
|
|
|
proto_tree_add_item(tree, hf_nfq_verdict_id, tvb, offset, 4, ENC_BIG_ENDIAN);
|
|
offset += 4;
|
|
}
|
|
break;
|
|
|
|
case WS_NFQA_MARK:
|
|
if (len == 4) {
|
|
proto_tree_add_item(tree, hf_nfq_nfmark, tvb, offset, 4, ENC_BIG_ENDIAN);
|
|
offset += 4;
|
|
}
|
|
break;
|
|
|
|
case WS_NFQA_TIMESTAMP:
|
|
if (len == 16) {
|
|
proto_tree_add_item(tree, hf_nfq_timestamp, tvb, offset, 16, ENC_TIME_SECS_NSECS|ENC_BIG_ENDIAN);
|
|
offset += 16;
|
|
}
|
|
break;
|
|
|
|
case WS_NFQA_IFINDEX_INDEV:
|
|
if (len == 4) {
|
|
proto_tree_add_item(tree, hf_nfq_ifindex_indev, tvb, offset, 4, ENC_BIG_ENDIAN);
|
|
offset += 4;
|
|
}
|
|
break;
|
|
|
|
case WS_NFQA_IFINDEX_OUTDEV:
|
|
if (len == 4) {
|
|
proto_tree_add_item(tree, hf_nfq_ifindex_outdev, tvb, offset, 4, ENC_BIG_ENDIAN);
|
|
offset += 4;
|
|
}
|
|
break;
|
|
|
|
case WS_NFQA_IFINDEX_PHYSINDEV:
|
|
if (len == 4) {
|
|
proto_tree_add_item(tree, hf_nfq_ifindex_physindev, tvb, offset, 4, ENC_BIG_ENDIAN);
|
|
offset += 4;
|
|
}
|
|
break;
|
|
|
|
case WS_NFQA_IFINDEX_PHYSOUTDEV:
|
|
if (len == 4) {
|
|
proto_tree_add_item(tree, hf_nfq_ifindex_physoutdev, tvb, offset, 4, ENC_BIG_ENDIAN);
|
|
offset += 4;
|
|
}
|
|
break;
|
|
|
|
case WS_NFQA_HWADDR:
|
|
if (len >= 4) {
|
|
guint16 addrlen;
|
|
|
|
proto_tree_add_item(tree, hf_nfq_hwaddr_len, tvb, offset, 2, ENC_BIG_ENDIAN);
|
|
addrlen = tvb_get_ntohs(tvb, offset);
|
|
offset += 4; /* skip len and padding */
|
|
|
|
/* XXX expert info if 4 + addrlen > len. */
|
|
addrlen = MIN(addrlen, len - 4);
|
|
proto_tree_add_item(tree, hf_nfq_hwaddr_addr, tvb, offset, addrlen, ENC_NA);
|
|
offset += addrlen;
|
|
}
|
|
break;
|
|
|
|
case WS_NFQA_PAYLOAD:
|
|
if (len > 0) {
|
|
tvbuff_t *next_tvb = tvb_new_subset_length(tvb, offset, len);
|
|
proto_tree *parent_tree = proto_item_get_parent(tree);
|
|
|
|
if (!dissector_try_uint(ethertype_table, info->hw_protocol, next_tvb, info->pinfo, parent_tree))
|
|
call_data_dissector(next_tvb, info->pinfo, parent_tree);
|
|
offset += len;
|
|
}
|
|
break;
|
|
|
|
case WS_NFQA_CT:
|
|
if (nla_type & NLA_F_NESTED)
|
|
return dissect_netlink_attributes(tvb, hf_nfct_attr, ett_nfct_attr, info, nl_data,
|
|
tree, offset, len, dissect_nfct_attrs);
|
|
break;
|
|
|
|
case WS_NFQA_CT_INFO:
|
|
if (len == 4) {
|
|
proto_tree_add_item(tree, hf_nfq_ctinfo, tvb, offset, 4, ENC_BIG_ENDIAN);
|
|
offset += 4;
|
|
}
|
|
break;
|
|
|
|
case WS_NFQA_CAP_LEN:
|
|
if (len == 4) {
|
|
proto_tree_add_item(tree, hf_nfq_caplen, tvb, offset, 4, ENC_BIG_ENDIAN);
|
|
offset += 4;
|
|
}
|
|
break;
|
|
|
|
case WS_NFQA_SKB_INFO:
|
|
case WS_NFQA_EXP:
|
|
/* TODO */
|
|
break;
|
|
|
|
case WS_NFQA_UID:
|
|
if (len == 4) {
|
|
proto_tree_add_item(tree, hf_nfq_uid, tvb, offset, 4, ENC_BIG_ENDIAN);
|
|
offset += 4;
|
|
}
|
|
break;
|
|
|
|
case WS_NFQA_GID:
|
|
if (len == 4) {
|
|
proto_tree_add_item(tree, hf_nfq_gid, tvb, offset, 4, ENC_BIG_ENDIAN);
|
|
offset += 4;
|
|
}
|
|
break;
|
|
|
|
case WS_NFQA_SECCTX:
|
|
case WS_NFQA_VLAN:
|
|
case WS_NFQA_L2HDR:
|
|
/* TODO */
|
|
break;
|
|
}
|
|
|
|
return offset;
|
|
}
|
|
|
|
/* QUEUE - main */
|
|
|
|
static int
|
|
dissect_netfilter_queue(tvbuff_t *tvb, netlink_netfilter_info_t *info, struct packet_netlink_data *nl_data, proto_tree *tree, int offset)
|
|
{
|
|
enum ws_nfqnl_msg_types type = (enum ws_nfqnl_msg_types) (nl_data->type & 0xff);
|
|
|
|
offset = dissect_netlink_netfilter_header(tvb, tree, offset);
|
|
|
|
switch (type) {
|
|
case WS_NFQNL_MSG_CONFIG:
|
|
return dissect_netlink_attributes_to_end(tvb, hf_nfq_config_attr, ett_nfq_config_attr, info, nl_data, tree, offset, dissect_nfq_config_attrs);
|
|
|
|
case WS_NFQNL_MSG_PACKET:
|
|
case WS_NFQNL_MSG_VERDICT:
|
|
return dissect_netlink_attributes_to_end(tvb, hf_nfq_attr, ett_nfq_attr, info, nl_data, tree, offset, dissect_nfq_attrs);
|
|
|
|
case WS_NFQNL_MSG_VERDICT_BATCH:
|
|
/* TODO */
|
|
break;
|
|
}
|
|
|
|
return offset;
|
|
}
|
|
|
|
/* ULOG */
|
|
|
|
static const value_string netlink_netfilter_ulog_type_vals[] = {
|
|
{ WS_NFULNL_MSG_PACKET, "Packet" },
|
|
{ WS_NFULNL_MSG_CONFIG, "Config" },
|
|
{ 0, NULL }
|
|
};
|
|
|
|
static int
|
|
dissect_netfilter_ulog(tvbuff_t *tvb, netlink_netfilter_info_t *info, struct packet_netlink_data *nl_data, proto_tree *tree, int offset)
|
|
{
|
|
enum ws_nfulnl_msg_types type = (enum ws_nfulnl_msg_types) (nl_data->type & 0xff);
|
|
tvbuff_t *next_tvb;
|
|
|
|
switch (type) {
|
|
case WS_NFULNL_MSG_PACKET:
|
|
/* Note that NFLOG dissects the nfgenmsg header */
|
|
next_tvb = tvb_new_subset_remaining(tvb, offset);
|
|
call_dissector(nflog_handle, next_tvb, info->pinfo, tree);
|
|
offset = tvb_reported_length(tvb);
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return offset;
|
|
}
|
|
|
|
/* IPSET */
|
|
|
|
static const value_string ipset_command_vals[] = {
|
|
{ WS_IPSET_CMD_NONE, "None" },
|
|
{ WS_IPSET_CMD_PROTOCOL, "Return protocol version" },
|
|
{ WS_IPSET_CMD_CREATE, "Create a new (empty) set" },
|
|
{ WS_IPSET_CMD_DESTROY, "Destroy a (empty) set" },
|
|
{ WS_IPSET_CMD_FLUSH, "Remove all elements from a set" },
|
|
{ WS_IPSET_CMD_RENAME, "Rename a set" },
|
|
{ WS_IPSET_CMD_SWAP, "Swap two sets" },
|
|
{ WS_IPSET_CMD_LIST, "List sets" },
|
|
{ WS_IPSET_CMD_SAVE, "Save sets" },
|
|
{ WS_IPSET_CMD_ADD, "Add an element to a set" },
|
|
{ WS_IPSET_CMD_DEL, "Delete an element from a set" },
|
|
{ WS_IPSET_CMD_TEST, "Test an element in a set" },
|
|
{ WS_IPSET_CMD_HEADER, "Get set header data only" },
|
|
{ WS_IPSET_CMD_TYPE, "Get set type" },
|
|
{ WS_IPSET_CMD_GET_BYNAME, "Get set by name" },
|
|
{ WS_IPSET_CMD_GET_BYINDEX, "Get set by index" },
|
|
{ 0, NULL }
|
|
};
|
|
|
|
static const value_string ipset_attr_vals[] = {
|
|
{ WS_IPSET_ATTR_PROTOCOL, "Protocol version" },
|
|
{ WS_IPSET_ATTR_SETNAME, "Name of the set" },
|
|
{ WS_IPSET_ATTR_TYPENAME, "Typename" },
|
|
{ WS_IPSET_ATTR_REVISION, "Settype revision" },
|
|
{ WS_IPSET_ATTR_FAMILY, "Settype family" },
|
|
{ WS_IPSET_ATTR_FLAGS, "Flags at command level" },
|
|
{ WS_IPSET_ATTR_DATA, "Nested attributes" },
|
|
{ WS_IPSET_ATTR_ADT, "Multiple data containers" },
|
|
{ WS_IPSET_ATTR_LINENO, "Restore lineno" },
|
|
{ WS_IPSET_ATTR_PROTOCOL_MIN, "Minimal supported version number" },
|
|
{ WS_IPSET_ATTR_INDEX, "Index" },
|
|
{ 0, NULL }
|
|
};
|
|
|
|
static const value_string ipset_cadt_attr_vals[] = {
|
|
{ WS_IPSET_ATTR_IP_FROM, "IP_FROM" },
|
|
{ WS_IPSET_ATTR_IP_TO, "IP_TO" },
|
|
{ WS_IPSET_ATTR_CIDR, "CIDR" },
|
|
{ WS_IPSET_ATTR_PORT_FROM, "PORT_FROM" },
|
|
{ WS_IPSET_ATTR_PORT_TO, "PORT_TO" },
|
|
{ WS_IPSET_ATTR_TIMEOUT, "TIMEOUT" },
|
|
{ WS_IPSET_ATTR_PROTO, "PROTO" },
|
|
{ WS_IPSET_ATTR_CADT_FLAGS, "CADT_FLAGS" },
|
|
{ WS_IPSET_ATTR_CADT_LINENO, "CADT_LINENO" },
|
|
{ WS_IPSET_ATTR_MARK, "MARK" },
|
|
{ WS_IPSET_ATTR_MARKMASK, "MARKMASK" },
|
|
/* up to 16 is reserved. */
|
|
{ WS_IPSET_ATTR_GC, "GC" },
|
|
{ WS_IPSET_ATTR_HASHSIZE, "HASHSIZE" },
|
|
{ WS_IPSET_ATTR_MAXELEM, "MAXELEM" },
|
|
{ WS_IPSET_ATTR_NETMASK, "NETMASK" },
|
|
{ WS_IPSET_ATTR_PROBES, "PROBES" },
|
|
{ WS_IPSET_ATTR_RESIZE, "RESIZE" },
|
|
{ WS_IPSET_ATTR_SIZE, "SIZE" },
|
|
{ WS_IPSET_ATTR_ELEMENTS, "ELEMENTS" },
|
|
{ WS_IPSET_ATTR_REFERENCES, "REFERENCES" },
|
|
{ WS_IPSET_ATTR_MEMSIZE, "MEMSIZE" },
|
|
{ 0, NULL }
|
|
};
|
|
|
|
static const value_string ipset_adt_attr_vals[] = {
|
|
/* Nasty! Duplication from CADT above... */
|
|
{ WS_IPSET_ATTR_IP_FROM, "IP_FROM" },
|
|
{ WS_IPSET_ATTR_IP_TO, "IP_TO" },
|
|
{ WS_IPSET_ATTR_CIDR, "CIDR" },
|
|
{ WS_IPSET_ATTR_PORT_FROM, "PORT_FROM" },
|
|
{ WS_IPSET_ATTR_PORT_TO, "PORT_TO" },
|
|
{ WS_IPSET_ATTR_TIMEOUT, "TIMEOUT" },
|
|
{ WS_IPSET_ATTR_PROTO, "PROTO" },
|
|
{ WS_IPSET_ATTR_CADT_FLAGS, "CADT_FLAGS" },
|
|
{ WS_IPSET_ATTR_CADT_LINENO, "CADT_LINENO" },
|
|
{ WS_IPSET_ATTR_MARK, "MARK" },
|
|
{ WS_IPSET_ATTR_MARKMASK, "MARKMASK" },
|
|
/* End of duplication, other attributes follow. */
|
|
{ WS_IPSET_ATTR_ETHER, "ETHER" },
|
|
{ WS_IPSET_ATTR_NAME, "NAME" },
|
|
{ WS_IPSET_ATTR_NAMEREF, "NAMEREF" },
|
|
{ WS_IPSET_ATTR_IP2, "IP2" },
|
|
{ WS_IPSET_ATTR_CIDR2, "CIDR2" },
|
|
{ WS_IPSET_ATTR_IP2_TO, "IP2_TO" },
|
|
{ WS_IPSET_ATTR_IFACE, "IFACE" },
|
|
{ WS_IPSET_ATTR_BYTES, "BYTES" },
|
|
{ WS_IPSET_ATTR_PACKETS, "PACKETS" },
|
|
{ WS_IPSET_ATTR_COMMENT, "COMMENT" },
|
|
{ WS_IPSET_ATTR_SKBMARK, "SKBMARK" },
|
|
{ WS_IPSET_ATTR_SKBPRIO, "SKBPRIO" },
|
|
{ WS_IPSET_ATTR_SKBQUEUE, "SKBQUEUE" },
|
|
{ WS_IPSET_ATTR_PAD, "PAD" },
|
|
{ 0, NULL }
|
|
};
|
|
|
|
static const value_string ipset_ip_attr_vals[] = {
|
|
{ WS_IPSET_ATTR_IPADDR_IPV4, "IPv4 address" },
|
|
{ WS_IPSET_ATTR_IPADDR_IPV6, "IPv6 address" },
|
|
{ 0, NULL }
|
|
};
|
|
|
|
static int
|
|
dissect_ipset_ip_attrs(tvbuff_t *tvb, void *data _U_, struct packet_netlink_data *nl_data _U_, proto_tree *tree, int nla_type, int offset, int len)
|
|
{
|
|
enum ws_ipset_ip_attr type = (enum ws_ipset_ip_attr) nla_type & NLA_TYPE_MASK;
|
|
|
|
switch (type) {
|
|
case WS_IPSET_ATTR_IPADDR_IPV4:
|
|
proto_tree_add_item(tree, hf_ipset_ip_attr_ipv4, tvb, offset, len, ENC_BIG_ENDIAN);
|
|
return 1;
|
|
|
|
case WS_IPSET_ATTR_IPADDR_IPV6:
|
|
proto_tree_add_item(tree, hf_ipset_ip_attr_ipv6, tvb, offset, len, ENC_NA);
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
dissect_ipset_cadt_attrs(tvbuff_t *tvb, void *data, struct packet_netlink_data *nl_data, proto_tree *tree, int nla_type, int offset, int len)
|
|
{
|
|
enum ws_ipset_cadt_attr type = (enum ws_ipset_cadt_attr) nla_type & NLA_TYPE_MASK;
|
|
netlink_netfilter_info_t *info = (netlink_netfilter_info_t *) data;
|
|
|
|
switch (type) {
|
|
case WS_IPSET_ATTR_IP_FROM:
|
|
case WS_IPSET_ATTR_IP_TO:
|
|
if (nla_type & NLA_F_NESTED)
|
|
return dissect_netlink_attributes(tvb, hf_ipset_ip_attr, ett_ipset_ip_attr, info, nl_data, tree, offset, len, dissect_ipset_ip_attrs);
|
|
return 0;
|
|
|
|
case WS_IPSET_ATTR_CIDR:
|
|
if (len == 1) {
|
|
proto_tree_add_item(tree, hf_ipset_cadt_attr_cidr, tvb, offset, len, ENC_NA);
|
|
return 1;
|
|
}
|
|
return 0;
|
|
|
|
case WS_IPSET_ATTR_PORT_FROM:
|
|
case WS_IPSET_ATTR_PORT_TO:
|
|
/* TODO */
|
|
return 0;
|
|
|
|
case WS_IPSET_ATTR_TIMEOUT:
|
|
if (len == 4) {
|
|
proto_tree_add_item(tree, hf_ipset_cadt_attr_timeout, tvb, offset, len, ENC_BIG_ENDIAN);
|
|
return 1;
|
|
}
|
|
return 0;
|
|
|
|
case WS_IPSET_ATTR_PROTO:
|
|
/* TODO */
|
|
return 0;
|
|
|
|
case WS_IPSET_ATTR_CADT_FLAGS:
|
|
if (len == 4) {
|
|
proto_tree_add_item(tree, hf_ipset_cadt_attr_cadt_flags, tvb, offset, len, ENC_BIG_ENDIAN);
|
|
/* TODO show bits from enum ipset_cadt_flags */
|
|
return 1;
|
|
}
|
|
return 0;
|
|
|
|
case WS_IPSET_ATTR_CADT_LINENO:
|
|
case WS_IPSET_ATTR_MARK:
|
|
case WS_IPSET_ATTR_MARKMASK:
|
|
case WS_IPSET_ATTR_GC:
|
|
case WS_IPSET_ATTR_HASHSIZE:
|
|
case WS_IPSET_ATTR_MAXELEM:
|
|
case WS_IPSET_ATTR_NETMASK:
|
|
case WS_IPSET_ATTR_PROBES:
|
|
case WS_IPSET_ATTR_RESIZE:
|
|
case WS_IPSET_ATTR_SIZE:
|
|
case WS_IPSET_ATTR_ELEMENTS:
|
|
case WS_IPSET_ATTR_REFERENCES:
|
|
case WS_IPSET_ATTR_MEMSIZE:
|
|
/* TODO */
|
|
return 0;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
dissect_ipset_adt_data_attrs(tvbuff_t *tvb, void *data, struct packet_netlink_data *nl_data, proto_tree *tree, int nla_type, int offset, int len)
|
|
{
|
|
enum ws_ipset_adt_attr type = (enum ws_ipset_adt_attr) nla_type & NLA_TYPE_MASK;
|
|
|
|
if ((nla_type & NLA_TYPE_MASK) <= WS_IPSET_ATTR_CADT_MAX)
|
|
return dissect_ipset_cadt_attrs(tvb, data, nl_data, tree, nla_type, offset, len);
|
|
|
|
switch (type) {
|
|
case WS_IPSET_ATTR_COMMENT:
|
|
proto_tree_add_item(tree, hf_ipset_adt_attr_comment, tvb, offset, len, ENC_UTF_8);
|
|
return 1;
|
|
|
|
default:
|
|
return 0;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
dissect_ipset_adt_attrs(tvbuff_t *tvb, void *data, struct packet_netlink_data *nl_data, proto_tree *tree, int nla_type, int offset, int len)
|
|
{
|
|
netlink_netfilter_info_t *info = (netlink_netfilter_info_t *) data;
|
|
|
|
if (nla_type & NLA_F_NESTED)
|
|
return dissect_netlink_attributes(tvb, hf_ipset_adt_attr, ett_ipset_adt_attr, info, nl_data, tree, offset, len, dissect_ipset_adt_data_attrs);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
dissect_ipset_attrs(tvbuff_t *tvb, void *data, struct packet_netlink_data *nl_data, proto_tree *tree, int nla_type, int offset, int len)
|
|
{
|
|
enum ws_ipset_attr type = (enum ws_ipset_attr) nla_type & NLA_TYPE_MASK;
|
|
netlink_netfilter_info_t *info = (netlink_netfilter_info_t *) data;
|
|
|
|
switch (type) {
|
|
case WS_IPSET_ATTR_PROTOCOL:
|
|
/* TODO */
|
|
return 0;
|
|
|
|
case WS_IPSET_ATTR_SETNAME:
|
|
proto_tree_add_item(tree, hf_ipset_attr_setname, tvb, offset, len, ENC_UTF_8);
|
|
return 1;
|
|
|
|
case WS_IPSET_ATTR_TYPENAME:
|
|
proto_tree_add_item(tree, hf_ipset_attr_typename, tvb, offset, len, ENC_UTF_8);
|
|
return 1;
|
|
|
|
case WS_IPSET_ATTR_REVISION:
|
|
/* TODO */
|
|
return 0;
|
|
|
|
case WS_IPSET_ATTR_FAMILY:
|
|
proto_tree_add_item(tree, hf_ipset_attr_family, tvb, offset, len, ENC_BIG_ENDIAN);
|
|
return 1;
|
|
|
|
case WS_IPSET_ATTR_FLAGS:
|
|
if (len == 4) {
|
|
proto_tree_add_item(tree, hf_ipset_attr_flags, tvb, offset, len, ENC_BIG_ENDIAN);
|
|
/* TODO show bits from enum ipset_cmd_flags */
|
|
return 1;
|
|
}
|
|
return 0;
|
|
|
|
case WS_IPSET_ATTR_DATA:
|
|
/* See ipset lib/PROTOCOL, CADT attributes only follow for some commands */
|
|
if (nla_type & NLA_F_NESTED) {
|
|
guint16 command = nl_data->type & 0xffff;
|
|
|
|
if (command == WS_IPSET_CMD_CREATE ||
|
|
command == WS_IPSET_CMD_LIST ||
|
|
command == WS_IPSET_CMD_SAVE)
|
|
return dissect_netlink_attributes(tvb, hf_ipset_cadt_attr, ett_ipset_cadt_attr, info, nl_data, tree, offset, len, dissect_ipset_cadt_attrs);
|
|
else
|
|
return dissect_netlink_attributes(tvb, hf_ipset_adt_attr, ett_ipset_adt_attr, info, nl_data, tree, offset, len, dissect_ipset_adt_data_attrs);
|
|
}
|
|
return 0;
|
|
|
|
case WS_IPSET_ATTR_ADT:
|
|
/* Following this, there will be an IPSET_ATTR_DATA with regular ADT attributes, not CADT */
|
|
if (nla_type & NLA_F_NESTED)
|
|
return dissect_netlink_attributes(tvb, hf_ipset_attr, ett_ipset_attr, info, nl_data, tree, offset, len, dissect_ipset_adt_attrs);
|
|
return 0;
|
|
|
|
case WS_IPSET_ATTR_LINENO:
|
|
case WS_IPSET_ATTR_PROTOCOL_MIN:
|
|
case WS_IPSET_ATTR_INDEX:
|
|
/* TODO */
|
|
return 0;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
dissect_netfilter_ipset(tvbuff_t *tvb, netlink_netfilter_info_t *info, struct packet_netlink_data *nl_data, proto_tree *tree, int offset)
|
|
{
|
|
offset = dissect_netlink_netfilter_header(tvb, tree, offset);
|
|
return dissect_netlink_attributes_to_end(tvb, hf_ipset_attr, ett_ipset_attr, info, nl_data, tree, offset, dissect_ipset_attrs);
|
|
}
|
|
|
|
|
|
static const value_string netlink_netfilter_subsystem_vals[] = {
|
|
{ WS_NFNL_SUBSYS_NONE, "None" },
|
|
{ WS_NFNL_SUBSYS_CTNETLINK, "Conntrack" },
|
|
{ WS_NFNL_SUBSYS_CTNETLINK_EXP, "Conntrack expect" },
|
|
{ WS_NFNL_SUBSYS_QUEUE, "Netfilter packet queue" },
|
|
{ WS_NFNL_SUBSYS_ULOG, "Netfilter userspace logging" },
|
|
{ WS_NFNL_SUBSYS_OSF, "OS fingerprint" },
|
|
{ WS_NFNL_SUBSYS_IPSET, "IP set" },
|
|
{ WS_NFNL_SUBSYS_ACCT, "Extended Netfilter accounting infrastructure" },
|
|
{ WS_NFNL_SUBSYS_CTNETLINK_TIMEOUT, "Extended Netfilter Connection Tracking timeout tuning" },
|
|
{ WS_NFNL_SUBSYS_CTHELPER, "Connection Tracking Helpers" },
|
|
{ WS_NFNL_SUBSYS_NFTABLES, "Netfilter tables" },
|
|
{ WS_NFNL_SUBSYS_NFT_COMPAT, "x_tables compatibility layer for nf_tables" },
|
|
{ WS_NFNL_SUBSYS_COUNT, "Count" },
|
|
{ 0, NULL }
|
|
};
|
|
|
|
static int
|
|
dissect_netlink_netfilter(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data)
|
|
{
|
|
struct packet_netlink_data *nl_data = (struct packet_netlink_data *)data;
|
|
netlink_netfilter_info_t info;
|
|
proto_tree *nlmsg_tree;
|
|
proto_item *pi;
|
|
int offset = 0;
|
|
|
|
DISSECTOR_ASSERT(nl_data && nl_data->magic == PACKET_NETLINK_MAGIC);
|
|
|
|
col_set_str(pinfo->cinfo, COL_PROTOCOL, "Netlink netfilter");
|
|
col_clear(pinfo->cinfo, COL_INFO);
|
|
|
|
pi = proto_tree_add_item(tree, proto_netlink_netfilter, tvb, 0, -1, ENC_NA);
|
|
nlmsg_tree = proto_item_add_subtree(pi, ett_netlink_netfilter);
|
|
|
|
/* Netlink message header (nlmsghdr) */
|
|
offset = dissect_netlink_header(tvb, nlmsg_tree, offset, nl_data->encoding, -1, NULL);
|
|
proto_tree_add_item(nlmsg_tree, hf_netlink_netfilter_subsys, tvb, 4, 2, nl_data->encoding);
|
|
switch (nl_data->type >> 8) {
|
|
case WS_NFNL_SUBSYS_CTNETLINK_EXP:
|
|
proto_tree_add_item(nlmsg_tree, hf_nfexp_type, tvb, 4, 2, nl_data->encoding);
|
|
break;
|
|
|
|
case WS_NFNL_SUBSYS_QUEUE:
|
|
proto_tree_add_item(nlmsg_tree, hf_nfq_type, tvb, 4, 2, nl_data->encoding);
|
|
break;
|
|
|
|
case WS_NFNL_SUBSYS_ULOG:
|
|
proto_tree_add_item(nlmsg_tree, hf_netlink_netfilter_ulog_type, tvb, 4, 2, nl_data->encoding);
|
|
break;
|
|
|
|
case WS_NFNL_SUBSYS_IPSET:
|
|
proto_tree_add_item(nlmsg_tree, hf_ipset_command, tvb, 4, 2, nl_data->encoding);
|
|
break;
|
|
}
|
|
|
|
info.pinfo = pinfo;
|
|
info.hw_protocol = 0;
|
|
|
|
switch (nl_data->type >> 8) {
|
|
case WS_NFNL_SUBSYS_CTNETLINK:
|
|
offset = dissect_netfilter_ct(tvb, &info, nl_data, nlmsg_tree, offset);
|
|
break;
|
|
|
|
case WS_NFNL_SUBSYS_CTNETLINK_EXP:
|
|
offset = dissect_netfilter_exp(tvb, &info, nl_data, nlmsg_tree, offset);
|
|
break;
|
|
|
|
case WS_NFNL_SUBSYS_QUEUE:
|
|
offset = dissect_netfilter_queue(tvb, &info, nl_data, nlmsg_tree, offset);
|
|
break;
|
|
|
|
case WS_NFNL_SUBSYS_ULOG:
|
|
offset = dissect_netfilter_ulog(tvb, &info, nl_data, nlmsg_tree, offset);
|
|
break;
|
|
|
|
case WS_NFNL_SUBSYS_IPSET:
|
|
offset = dissect_netfilter_ipset(tvb, &info, nl_data, nlmsg_tree, offset);
|
|
break;
|
|
|
|
default:
|
|
call_data_dissector(tvb_new_subset_remaining(tvb, offset), pinfo, nlmsg_tree);
|
|
offset = tvb_reported_length(tvb);
|
|
break;
|
|
}
|
|
|
|
return offset;
|
|
}
|
|
|
|
void
|
|
proto_register_netlink_netfilter(void)
|
|
{
|
|
static hf_register_info hf[] = {
|
|
{ &hf_netlink_netfilter_family,
|
|
{ "Address family", "netlink-netfilter.family",
|
|
FT_UINT8, BASE_DEC | BASE_EXT_STRING, &linux_af_vals_ext, 0x00,
|
|
"nfnetlink address family", HFILL }
|
|
},
|
|
{ &hf_netlink_netfilter_version,
|
|
{ "Version", "netlink-netfilter.version",
|
|
FT_UINT8, BASE_DEC, NULL, 0x00,
|
|
"nfnetlink version", HFILL }
|
|
},
|
|
{ &hf_netlink_netfilter_resid,
|
|
{ "Resource id", "netlink-netfilter.res_id",
|
|
FT_UINT16, BASE_DEC, NULL, 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_nfct_tuple_proto_num_attr,
|
|
{ "Protocol", "netlink-netfilter.nfct_tuple.proto.num",
|
|
FT_UINT8, BASE_DEC, NULL, 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_nfct_tuple_proto_src_port_attr,
|
|
{ "Port", "netlink-netfilter.nfct_tuple.proto.src_port",
|
|
FT_UINT16, BASE_DEC, NULL, 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_nfct_tuple_proto_dst_port_attr,
|
|
{ "Port", "netlink-netfilter.nfct_tuple.proto.dst_port",
|
|
FT_UINT16, BASE_DEC, NULL, 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_nfct_tuple_proto_attr,
|
|
{ "Type", "netlink-netfilter.nfct_tuple.proto",
|
|
FT_UINT16, BASE_DEC, VALS(nfct_tuple_l4proto_attr_vals), NLA_TYPE_MASK,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_nfct_tuple_ip_attr_ipv4,
|
|
{ "IPv4 address", "netlink-netfilter.nfct_tuple.ip.ip_addr",
|
|
FT_IPv4, BASE_NONE, NULL, 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_nfct_tuple_ip_attr_ipv6,
|
|
{ "IPv6 address", "netlink-netfilter.nfct_tuple.ip.ip6_addr",
|
|
FT_IPv6, BASE_NONE, NULL, 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_nfct_tuple_ip_attr,
|
|
{ "Type", "netlink-netfilter.nfct_tuple.ip",
|
|
FT_UINT16, BASE_DEC, VALS(nfct_tuple_ip_attr_vals), NLA_TYPE_MASK,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_nfct_tuple_zone_attr,
|
|
{ "Zone", "netlink-netfilter.nfct_tuple.zone",
|
|
FT_UINT16, BASE_DEC, NULL, 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_nfct_tuple_attr,
|
|
{ "Type", "netlink-netfilter.nfct_tuple",
|
|
FT_UINT16, BASE_DEC, VALS(nfct_tuple_attr_vals), NLA_TYPE_MASK,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_nfct_attr_timeout,
|
|
{ "Timeout", "netlink-netfilter.ct_attr.timeout",
|
|
FT_UINT32, BASE_DEC, NULL, 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_nfct_attr_id,
|
|
{ "ID", "netlink-netfilter.ct_attr.id",
|
|
FT_UINT32, BASE_HEX, NULL, 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_nfct_attr_status_flag_expected,
|
|
{ "Expected", "netlink-netfilter.ct_attr.status.expected",
|
|
FT_UINT32, BASE_DEC, NULL, WS_IPS_EXPECTED,
|
|
"It is an expected connection", HFILL }
|
|
},
|
|
{ &hf_nfct_attr_status_flag_seen_reply,
|
|
{ "Seen reply", "netlink-netfilter.ct_attr.status.seen_reply",
|
|
FT_UINT32, BASE_DEC, NULL, WS_IPS_SEEN_REPLY,
|
|
"Packets going in both directions have been seen", HFILL }
|
|
},
|
|
{ &hf_nfct_attr_status_flag_assured,
|
|
{ "Assured", "netlink-netfilter.ct_attr.status.assured",
|
|
FT_UINT32, BASE_DEC, NULL, WS_IPS_ASSURED,
|
|
"Conntrack should never be early-expired", HFILL }
|
|
},
|
|
{ &hf_nfct_attr_status_flag_confirmed,
|
|
{ "Confirmed", "netlink-netfilter.ct_attr.status.confirmed",
|
|
FT_UINT32, BASE_DEC, NULL, WS_IPS_CONFIRMED,
|
|
"Connection is confirmed: originating packet has left box", HFILL }
|
|
},
|
|
{ &hf_nfct_attr_status_flag_src_nat,
|
|
{ "Source NAT", "netlink-netfilter.ct_attr.status.src_nat",
|
|
FT_UINT32, BASE_DEC, NULL, WS_IPS_SRC_NAT,
|
|
"Connection needs source NAT in orig dir.", HFILL }
|
|
},
|
|
{ &hf_nfct_attr_status_flag_dst_nat,
|
|
{ "Destination NAT", "netlink-netfilter.ct_attr.status.dst_nat",
|
|
FT_UINT32, BASE_DEC, NULL, WS_IPS_DST_NAT,
|
|
"Connection needs destination NAT in orig dir.", HFILL }
|
|
},
|
|
{ &hf_nfct_attr_status_flag_seq_adjust,
|
|
{ "Sequence adjust", "netlink-netfilter.ct_attr.status.seq_adjust",
|
|
FT_UINT32, BASE_DEC, NULL, WS_IPS_SEQ_ADJUST,
|
|
"Connection needs TCP sequence adjusted", HFILL }
|
|
},
|
|
{ &hf_nfct_attr_status_flag_src_nat_done,
|
|
{ "Source NAT done", "netlink-netfilter.ct_attr.status.src_nat_done",
|
|
FT_UINT32, BASE_DEC, NULL, WS_IPS_SRC_NAT_DONE,
|
|
"Source NAT has been initialized", HFILL }
|
|
},
|
|
{ &hf_nfct_attr_status_flag_dst_nat_done,
|
|
{ "Destination NAT done", "netlink-netfilter.ct_attr.status.dst_nat_done",
|
|
FT_UINT32, BASE_DEC, NULL, WS_IPS_DST_NAT_DONE,
|
|
"Destination NAT has been initialized", HFILL }
|
|
},
|
|
{ &hf_nfct_attr_status_flag_dying,
|
|
{ "Dying", "netlink-netfilter.ct_attr.status.dying",
|
|
FT_UINT32, BASE_DEC, NULL, WS_IPS_DYING,
|
|
"Connection is dying (removed from lists)", HFILL }
|
|
},
|
|
{ &hf_nfct_attr_status_flag_fixed_timeout,
|
|
{ "Fixed timeout", "netlink-netfilter.ct_attr.status.fixed_timeout",
|
|
FT_UINT32, BASE_DEC, NULL, WS_IPS_FIXED_TIMEOUT,
|
|
"Connection has fixed timeout", HFILL }
|
|
},
|
|
{ &hf_nfct_attr_status_flag_template,
|
|
{ "Template", "netlink-netfilter.ct_attr.status.template",
|
|
FT_UINT32, BASE_DEC, NULL, WS_IPS_TEMPLATE,
|
|
"Conntrack is a template", HFILL }
|
|
},
|
|
{ &hf_nfct_attr_status_flag_untracked,
|
|
{ "Untracked", "netlink-netfilter.ct_attr.status.untracked",
|
|
FT_UINT32, BASE_DEC, NULL, WS_IPS_UNTRACKED,
|
|
"Conntrack is a fake untracked entry. Obsolete and not used anymore", HFILL }
|
|
},
|
|
{ &hf_nfct_attr_status_flag_helper,
|
|
{ "Helper", "netlink-netfilter.ct_attr.status.helper",
|
|
FT_UINT32, BASE_DEC, NULL, WS_IPS_HELPER,
|
|
"Conntrack got a helper explicitly attached via CT target", HFILL }
|
|
},
|
|
{ &hf_nfct_attr_status_flag_offload,
|
|
{ "Offload", "netlink-netfilter.ct_attr.status.offload",
|
|
FT_UINT32, BASE_DEC, NULL, WS_IPS_OFFLOAD,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_nfct_attr_status,
|
|
{ "Status", "netlink-netfilter.ct_attr.status",
|
|
FT_UINT32, BASE_HEX, NULL, 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_nfct_help_attr_help_name,
|
|
{ "Helper name", "netlink-netfilter.ct_help_attr.help_name",
|
|
FT_STRINGZ, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_nfct_help_attr,
|
|
{ "Helper", "netlink-netfilter.ct_help_attr",
|
|
FT_UINT16, BASE_DEC, VALS(nfct_help_attr_vals), NLA_TYPE_MASK,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_nfct_seqadj_attr_correction_pos,
|
|
{ "Position", "netlink-netfilter.ct_seqadj_correction_pos",
|
|
FT_UINT32, BASE_DEC, NULL, 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_nfct_seqadj_attr_offset_before,
|
|
{ "Offset", "netlink-netfilter.ct_seqadj_offset_before",
|
|
FT_INT32, BASE_DEC, NULL, 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_nfct_seqadj_attr_offset_after,
|
|
{ "Offset", "netlink-netfilter.ct_seqadj_offset_after",
|
|
FT_INT32, BASE_DEC, NULL, 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_nfct_seqadj_attr,
|
|
{ "Adjustment", "netlink-netfilter.ct_seqadj_attr",
|
|
FT_UINT16, BASE_DEC, VALS(nfct_seqadj_attr_vals), NLA_TYPE_MASK,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_nfct_attr,
|
|
{ "Type", "netlink-netfilter.ct.attr",
|
|
FT_UINT16, BASE_DEC, VALS(nfct_attr_vals), NLA_TYPE_MASK,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_nfexp_nat_attr_dir,
|
|
{ "Direction", "netlink-netfilter.nfexp.nat.dir",
|
|
FT_UINT32, BASE_DEC, VALS(nfexp_conntrack_dir_vals), 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_nfexp_nat_attr,
|
|
{ "Type", "netlink-netfilter.nfexp.nat",
|
|
FT_UINT16, BASE_DEC, VALS(nfexp_nat_attr_vals), NLA_TYPE_MASK,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_nfexp_attr_timeout,
|
|
{ "Timeout", "netlink-netfilter.nfexp.timeout",
|
|
FT_UINT32, BASE_DEC, NULL, 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_nfexp_attr_id,
|
|
{ "ID", "netlink-netfilter.nfexp.id",
|
|
FT_UINT32, BASE_HEX, NULL, 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_nfexp_attr_class,
|
|
{ "Class", "netlink-netfilter.nfexp.class",
|
|
FT_UINT32, BASE_DEC, NULL, 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_nfexp_attr_zone,
|
|
{ "Zone", "netlink-netfilter.nfexp.zone",
|
|
FT_UINT16, BASE_DEC, NULL, 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_nfexp_attr_fn,
|
|
{ "Name", "netlink-netfilter.nfexp.fn",
|
|
FT_STRINGZ, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_nfexp_attr_flag_permanent,
|
|
{ "Permanent", "netlink-netfilter.nfexp.flags.permanent",
|
|
FT_UINT32, BASE_DEC, NULL, WS_NF_CT_EXPECT_PERMANENT,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_nfexp_attr_flag_inactive,
|
|
{ "Inactive", "netlink-netfilter.nfexp.flags.inactive",
|
|
FT_UINT32, BASE_DEC, NULL, WS_NF_CT_EXPECT_INACTIVE,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_nfexp_attr_flag_userspace,
|
|
{ "Userspace", "netlink-netfilter.nfexp.flags.userspace",
|
|
FT_UINT32, BASE_DEC, NULL, WS_NF_CT_EXPECT_USERSPACE,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_nfexp_attr_flags,
|
|
{ "Flags", "netlink-netfilter.nfexp.flags",
|
|
FT_UINT32, BASE_HEX, NULL, 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_nfexp_attr,
|
|
{ "Type", "netlink-netfilter.exp.attr",
|
|
FT_UINT16, BASE_DEC, VALS(nfexp_attr_vals), NLA_TYPE_MASK,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_nfq_config_command_command,
|
|
{ "Command", "netlink-netfilter.queue.config.command.command",
|
|
FT_UINT8, BASE_DEC, VALS(nfq_config_command_vals), 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_nfq_config_command_pf,
|
|
{ "Protocol family", "netlink-netfilter.queue.config.command.pf",
|
|
FT_UINT16, BASE_DEC, VALS(nfproto_family_vals), 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_nfq_config_params_copyrange,
|
|
{ "Copy range", "netlink-netfilter.queue.config.params.copy_range",
|
|
FT_UINT32, BASE_HEX, NULL, 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_nfq_config_params_copymode,
|
|
{ "Copy mode", "netlink-netfilter.queue.config.params.copy_mode",
|
|
FT_UINT8, BASE_DEC, VALS(nfq_config_mode_vals), 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_nfq_config_queue_maxlen,
|
|
{ "Maximum queue length", "netlink-netfilter.queue.config.queue_maxlen",
|
|
FT_UINT32, BASE_DEC, NULL, 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_nfq_config_mask,
|
|
{ "Flags mask", "netlink-netfilter.queue.config.mask",
|
|
FT_UINT32, BASE_HEX, NULL, 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_nfq_config_flags,
|
|
{ "Flags", "netlink-netfilter.queue.config.flags",
|
|
FT_UINT32, BASE_HEX, NULL, 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_nfq_config_attr,
|
|
{ "Type", "netlink-netfilter.queue.config_attr",
|
|
FT_UINT16, BASE_DEC, VALS(nfq_config_attr_vals), NLA_TYPE_MASK,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_nfq_verdict_verdict,
|
|
{ "Verdict", "netlink-netfilter.queue.verdict.verdict",
|
|
FT_UINT32, BASE_DEC, VALS(nfq_verdict_vals), 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_nfq_verdict_id,
|
|
{ "Verdict ID", "netlink-netfilter.queue.verdict.id",
|
|
FT_UINT32, BASE_DEC, NULL, 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_nfq_packet_id,
|
|
{ "Packet ID", "netlink-netfilter.queue.packet.id",
|
|
FT_UINT32, BASE_DEC, NULL, 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_nfq_packet_hwprotocol,
|
|
{ "HW protocol", "netlink-netfilter.queue.packet.protocol",
|
|
FT_UINT16, BASE_HEX, VALS(etype_vals), 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_nfq_packet_hook,
|
|
{ "Netfilter hook", "netlink-netfilter.queue.packet.hook",
|
|
FT_UINT8, BASE_DEC, VALS(netfilter_hooks_vals), 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_nfq_nfmark,
|
|
{ "Mark", "netlink-netfilter.queue.nfmark",
|
|
FT_UINT32, BASE_DEC, NULL, 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_nfq_timestamp,
|
|
{ "Timestamp", "netlink-netfilter.queue.timestamp",
|
|
FT_ABSOLUTE_TIME, ABSOLUTE_TIME_LOCAL, NULL, 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_nfq_ifindex_indev,
|
|
{ "IFINDEX_INDEV", "netlink-netfilter.queue.ifindex_indev",
|
|
FT_UINT32, BASE_DEC, NULL, 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_nfq_ifindex_outdev,
|
|
{ "IFINDEX_OUTDEV", "netlink-netfilter.queue.ifindex_outdev",
|
|
FT_UINT32, BASE_DEC, NULL, 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_nfq_ifindex_physindev,
|
|
{ "IFINDEX_PHYSINDEV", "netlink-netfilter.queue.ifindex_physindev",
|
|
FT_UINT32, BASE_DEC, NULL, 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_nfq_ifindex_physoutdev,
|
|
{ "IFINDEX_PHYSOUTDEV", "netlink-netfilter.queue.ifindex_physoutdev",
|
|
FT_UINT32, BASE_DEC, NULL, 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_nfq_hwaddr_len,
|
|
{ "Address length", "netlink-netfilter.queue.hwaddr.len",
|
|
FT_UINT16, BASE_DEC, NULL, 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_nfq_hwaddr_addr,
|
|
{ "Address", "netlink-netfilter.queue.hwaddr.addr",
|
|
FT_ETHER, BASE_NONE, NULL, 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_nfq_ctinfo,
|
|
{ "Conntrack info", "netlink-netfilter.queue.ct_info",
|
|
FT_UINT32, BASE_DEC, VALS(nfq_ctinfo_vals), 0x00,
|
|
"Connection state tracking info", HFILL }
|
|
},
|
|
{ &hf_nfq_caplen,
|
|
{ "Length of captured packet", "netlink-netfilter.queue.caplen",
|
|
FT_UINT32, BASE_DEC, NULL, 0x00,
|
|
"Length of captured, untruncated packet", HFILL }
|
|
},
|
|
{ &hf_nfq_uid,
|
|
{ "UID", "netlink-netfilter.queue.uid",
|
|
FT_UINT32, BASE_DEC, NULL, 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_nfq_gid,
|
|
{ "GID", "netlink-netfilter.queue.gid",
|
|
FT_UINT32, BASE_DEC, NULL, 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_nfq_attr,
|
|
{ "Type", "netlink-netfilter.queue.attr",
|
|
FT_UINT16, BASE_DEC, VALS(nfq_attr_vals), NLA_TYPE_MASK,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_netlink_netfilter_ulog_type,
|
|
{ "Type", "netlink-netfilter.ulog_type",
|
|
FT_UINT16, BASE_DEC, VALS(netlink_netfilter_ulog_type_vals), 0x00FF,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_ipset_attr,
|
|
{ "Type", "netlink-netfilter.ipset_attr",
|
|
FT_UINT16, BASE_DEC, VALS(ipset_attr_vals), NLA_TYPE_MASK,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_ipset_cadt_attr,
|
|
{ "Type", "netlink-netfilter.ipset_cadt_attr",
|
|
FT_UINT16, BASE_DEC, VALS(ipset_cadt_attr_vals), NLA_TYPE_MASK,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_ipset_cadt_attr_cidr,
|
|
{ "CIDR", "netlink-netfilter.ipset.cidr",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_ipset_cadt_attr_timeout,
|
|
{ "Timeout", "netlink-netfilter.ipset.timeout",
|
|
FT_UINT32, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_ipset_cadt_attr_cadt_flags,
|
|
{ "Flags", "netlink-netfilter.ipset.cadt_flags",
|
|
FT_UINT32, BASE_HEX, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_ipset_attr_setname,
|
|
{ "Setname", "netlink-netfilter.ipset.setname",
|
|
FT_STRINGZ, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_ipset_attr_typename,
|
|
{ "Typename", "netlink-netfilter.ipset.typename",
|
|
FT_STRINGZ, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_ipset_attr_family,
|
|
{ "Settype family", "netlink-netfilter.ipset.family",
|
|
FT_UINT8, BASE_DEC, VALS(nfproto_family_vals), 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_ipset_attr_flags,
|
|
{ "Flags", "netlink-netfilter.ipset.flags",
|
|
FT_UINT32, BASE_HEX, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_ipset_adt_attr,
|
|
{ "Type", "netlink-netfilter.ipset_adt_attr",
|
|
FT_UINT16, BASE_DEC, VALS(ipset_adt_attr_vals), NLA_TYPE_MASK,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_ipset_adt_attr_comment,
|
|
{ "Comment", "netlink-netfilter.ipset.comment",
|
|
FT_STRINGZ, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_ipset_ip_attr,
|
|
{ "Type", "netlink-netfilter.ipset_ip_attr",
|
|
FT_UINT16, BASE_DEC, VALS(ipset_ip_attr_vals), NLA_TYPE_MASK,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_ipset_ip_attr_ipv4,
|
|
{ "IPv4 address", "netlink-netfilter.ipset.ip_addr",
|
|
FT_IPv4, BASE_NONE, NULL, 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_ipset_ip_attr_ipv6,
|
|
{ "IPv6 address", "netlink-netfilter.ipset.ip6_addr",
|
|
FT_IPv6, BASE_NONE, NULL, 0x00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_nfexp_type,
|
|
{ "Type", "netlink-netfilter.exp_type",
|
|
FT_UINT16, BASE_DEC, VALS(nfexp_type_vals), 0x00FF,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_nfq_type,
|
|
{ "Type", "netlink-netfilter.queue_type",
|
|
FT_UINT16, BASE_DEC, VALS(nfq_type_vals), 0x00FF,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_ipset_command,
|
|
{ "Command", "netlink-netfilter.ipset_command",
|
|
FT_UINT16, BASE_DEC, VALS(ipset_command_vals), 0x00FF,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_netlink_netfilter_subsys,
|
|
{ "Subsystem", "netlink-netfilter.subsys",
|
|
FT_UINT16, BASE_DEC, VALS(netlink_netfilter_subsystem_vals), 0xFF00,
|
|
NULL, HFILL }
|
|
},
|
|
};
|
|
|
|
static gint *ett[] = {
|
|
&ett_netlink_netfilter,
|
|
&ett_nfct_attr,
|
|
&ett_nfct_help_attr,
|
|
&ett_nfct_seqadj_attr,
|
|
&ett_nfct_status_attr,
|
|
&ett_nfct_tuple_attr,
|
|
&ett_nfct_tuple_ip_attr,
|
|
&ett_nfct_tuple_proto_attr,
|
|
&ett_nfq_config_attr,
|
|
&ett_nfq_attr,
|
|
&ett_nfexp_attr,
|
|
&ett_nfexp_flags_attr,
|
|
&ett_nfexp_nat_attr,
|
|
&ett_ipset_attr,
|
|
&ett_ipset_cadt_attr,
|
|
&ett_ipset_adt_attr,
|
|
&ett_ipset_ip_attr,
|
|
};
|
|
|
|
proto_netlink_netfilter = proto_register_protocol("Linux netlink netfilter protocol", "netfilter", "netlink-netfilter" );
|
|
proto_register_field_array(proto_netlink_netfilter, hf, array_length(hf));
|
|
proto_register_subtree_array(ett, array_length(ett));
|
|
|
|
netlink_netfilter = create_dissector_handle(dissect_netlink_netfilter, proto_netlink_netfilter);
|
|
}
|
|
|
|
void
|
|
proto_reg_handoff_netlink_netfilter(void)
|
|
{
|
|
dissector_add_uint("netlink.protocol", WS_NETLINK_NETFILTER, netlink_netfilter);
|
|
|
|
nflog_handle = find_dissector_add_dependency("nflog", proto_netlink_netfilter);
|
|
ethertype_table = find_dissector_table("ethertype");
|
|
}
|
|
|
|
/*
|
|
* 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:
|
|
*/
|