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suricata/src/decode-events.c

846 lines
19 KiB
C

/* Copyright (C) 2007-2022 Open Information Security Foundation
*
* You can copy, redistribute or modify this Program under the terms of
* the GNU General Public License version 2 as published by the Free
* Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* version 2 along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/
/**
* \file
*
* \author Anoop Saldanha <anoopsaldanha@gmail.com>
*/
#include "suricata-common.h"
#include "decode-events.h"
/* code moved to app-layer-events */
const struct DecodeEvents_ DEvents[] = {
/* IPV4 EVENTS */
{
"decoder.ipv4.pkt_too_small",
IPV4_PKT_TOO_SMALL,
},
{
"decoder.ipv4.hlen_too_small",
IPV4_HLEN_TOO_SMALL,
},
{
"decoder.ipv4.iplen_smaller_than_hlen",
IPV4_IPLEN_SMALLER_THAN_HLEN,
},
{
"decoder.ipv4.trunc_pkt",
IPV4_TRUNC_PKT,
},
/* IPV4 OPTIONS */
{
"decoder.ipv4.opt_invalid",
IPV4_OPT_INVALID,
},
{
"decoder.ipv4.opt_invalid_len",
IPV4_OPT_INVALID_LEN,
},
{
"decoder.ipv4.opt_malformed",
IPV4_OPT_MALFORMED,
},
{
"decoder.ipv4.opt_pad_required",
IPV4_OPT_PAD_REQUIRED,
},
{
"decoder.ipv4.opt_eol_required",
IPV4_OPT_EOL_REQUIRED,
},
{
"decoder.ipv4.opt_duplicate",
IPV4_OPT_DUPLICATE,
},
{
"decoder.ipv4.opt_unknown",
IPV4_OPT_UNKNOWN,
},
{
"decoder.ipv4.wrong_ip_version",
IPV4_WRONG_IP_VER,
},
{
"decoder.ipv4.icmpv6",
IPV4_WITH_ICMPV6,
},
/* ICMP EVENTS */
{
"decoder.icmpv4.pkt_too_small",
ICMPV4_PKT_TOO_SMALL,
},
{
"decoder.icmpv4.unknown_type",
ICMPV4_UNKNOWN_TYPE,
},
{
"decoder.icmpv4.unknown_code",
ICMPV4_UNKNOWN_CODE,
},
{
"decoder.icmpv4.ipv4_trunc_pkt",
ICMPV4_IPV4_TRUNC_PKT,
},
{
"decoder.icmpv4.ipv4_unknown_ver",
ICMPV4_IPV4_UNKNOWN_VER,
},
/* ICMPv6 EVENTS */
{
"decoder.icmpv6.unknown_type",
ICMPV6_UNKNOWN_TYPE,
},
{
"decoder.icmpv6.unknown_code",
ICMPV6_UNKNOWN_CODE,
},
{
"decoder.icmpv6.pkt_too_small",
ICMPV6_PKT_TOO_SMALL,
},
{
"decoder.icmpv6.ipv6_unknown_version",
ICMPV6_IPV6_UNKNOWN_VER,
},
{
"decoder.icmpv6.ipv6_trunc_pkt",
ICMPV6_IPV6_TRUNC_PKT,
},
{
"decoder.icmpv6.mld_message_with_invalid_hl",
ICMPV6_MLD_MESSAGE_WITH_INVALID_HL,
},
{
"decoder.icmpv6.unassigned_type",
ICMPV6_UNASSIGNED_TYPE,
},
{
"decoder.icmpv6.experimentation_type",
ICMPV6_EXPERIMENTATION_TYPE,
},
/* IPV6 EVENTS */
{
"decoder.ipv6.pkt_too_small",
IPV6_PKT_TOO_SMALL,
},
{
"decoder.ipv6.trunc_pkt",
IPV6_TRUNC_PKT,
},
{
"decoder.ipv6.trunc_exthdr",
IPV6_TRUNC_EXTHDR,
},
{
"decoder.ipv6.exthdr_dupl_fh",
IPV6_EXTHDR_DUPL_FH,
},
{
"decoder.ipv6.exthdr_useless_fh",
IPV6_EXTHDR_USELESS_FH,
},
{
"decoder.ipv6.exthdr_dupl_rh",
IPV6_EXTHDR_DUPL_RH,
},
{
"decoder.ipv6.exthdr_dupl_hh",
IPV6_EXTHDR_DUPL_HH,
},
{
"decoder.ipv6.exthdr_dupl_dh",
IPV6_EXTHDR_DUPL_DH,
},
{
"decoder.ipv6.exthdr_dupl_ah",
IPV6_EXTHDR_DUPL_AH,
},
{
"decoder.ipv6.exthdr_dupl_eh",
IPV6_EXTHDR_DUPL_EH,
},
{
"decoder.ipv6.exthdr_invalid_optlen",
IPV6_EXTHDR_INVALID_OPTLEN,
},
{
"decoder.ipv6.wrong_ip_version",
IPV6_WRONG_IP_VER,
},
{
"decoder.ipv6.exthdr_ah_res_not_null",
IPV6_EXTHDR_AH_RES_NOT_NULL,
},
{
"decoder.ipv6.hopopts_unknown_opt",
IPV6_HOPOPTS_UNKNOWN_OPT,
},
{
"decoder.ipv6.hopopts_only_padding",
IPV6_HOPOPTS_ONLY_PADDING,
},
{
"decoder.ipv6.dstopts_unknown_opt",
IPV6_DSTOPTS_UNKNOWN_OPT,
},
{
"decoder.ipv6.dstopts_only_padding",
IPV6_DSTOPTS_ONLY_PADDING,
},
{
"decoder.ipv6.rh_type_0",
IPV6_EXTHDR_RH_TYPE_0,
},
{
"decoder.ipv6.zero_len_padn",
IPV6_EXTHDR_ZERO_LEN_PADN,
},
{
"decoder.ipv6.fh_non_zero_reserved_field",
IPV6_FH_NON_ZERO_RES_FIELD,
},
{
"decoder.ipv6.data_after_none_header",
IPV6_DATA_AFTER_NONE_HEADER,
},
{
"decoder.ipv6.unknown_next_header",
IPV6_UNKNOWN_NEXT_HEADER,
},
{
"decoder.ipv6.icmpv4",
IPV6_WITH_ICMPV4,
},
/* TCP EVENTS */
{
"decoder.tcp.pkt_too_small",
TCP_PKT_TOO_SMALL,
},
{
"decoder.tcp.hlen_too_small",
TCP_HLEN_TOO_SMALL,
},
{
"decoder.tcp.invalid_optlen",
TCP_INVALID_OPTLEN,
},
/* TCP OPTIONS */
{
"decoder.tcp.opt_invalid_len",
TCP_OPT_INVALID_LEN,
},
{
"decoder.tcp.opt_duplicate",
TCP_OPT_DUPLICATE,
},
/* UDP EVENTS */
{
"decoder.udp.pkt_too_small",
UDP_PKT_TOO_SMALL,
},
{
"decoder.udp.hlen_too_small",
UDP_HLEN_TOO_SMALL,
},
{
"decoder.udp.hlen_invalid",
UDP_HLEN_INVALID,
},
/* SLL EVENTS */
{
"decoder.sll.pkt_too_small",
SLL_PKT_TOO_SMALL,
},
/* ETHERNET EVENTS */
{
"decoder.ethernet.pkt_too_small",
ETHERNET_PKT_TOO_SMALL,
},
/* PPP EVENTS */
{
"decoder.ppp.pkt_too_small",
PPP_PKT_TOO_SMALL,
},
{
"decoder.ppp.vju_pkt_too_small",
PPPVJU_PKT_TOO_SMALL,
},
{
"decoder.ppp.ip4_pkt_too_small",
PPPIPV4_PKT_TOO_SMALL,
},
{
"decoder.ppp.ip6_pkt_too_small",
PPPIPV6_PKT_TOO_SMALL,
},
{
"decoder.ppp.wrong_type",
PPP_WRONG_TYPE,
}, /** unknown & invalid protocol */
{
"decoder.ppp.unsup_proto",
PPP_UNSUP_PROTO,
}, /** unsupported but valid protocol */
/* PPPOE EVENTS */
{
"decoder.pppoe.pkt_too_small",
PPPOE_PKT_TOO_SMALL,
},
{
"decoder.pppoe.wrong_code",
PPPOE_WRONG_CODE,
},
{
"decoder.pppoe.malformed_tags",
PPPOE_MALFORMED_TAGS,
},
/* GRE EVENTS */
{
"decoder.gre.pkt_too_small",
GRE_PKT_TOO_SMALL,
},
{
"decoder.gre.wrong_version",
GRE_WRONG_VERSION,
},
{
"decoder.gre.version0_recur",
GRE_VERSION0_RECUR,
},
{
"decoder.gre.version0_flags",
GRE_VERSION0_FLAGS,
},
{
"decoder.gre.version0_hdr_too_big",
GRE_VERSION0_HDR_TOO_BIG,
},
{
"decoder.gre.version0_malformed_sre_hdr",
GRE_VERSION0_MALFORMED_SRE_HDR,
},
{
"decoder.gre.version1_chksum",
GRE_VERSION1_CHKSUM,
},
{
"decoder.gre.version1_route",
GRE_VERSION1_ROUTE,
},
{
"decoder.gre.version1_ssr",
GRE_VERSION1_SSR,
},
{
"decoder.gre.version1_recur",
GRE_VERSION1_RECUR,
},
{
"decoder.gre.version1_flags",
GRE_VERSION1_FLAGS,
},
{
"decoder.gre.version1_no_key",
GRE_VERSION1_NO_KEY,
},
{
"decoder.gre.version1_wrong_protocol",
GRE_VERSION1_WRONG_PROTOCOL,
},
{
"decoder.gre.version1_malformed_sre_hdr",
GRE_VERSION1_MALFORMED_SRE_HDR,
},
{
"decoder.gre.version1_hdr_too_big",
GRE_VERSION1_HDR_TOO_BIG,
},
/* VLAN EVENTS */
{
"decoder.vlan.header_too_small",
VLAN_HEADER_TOO_SMALL,
},
{
"decoder.vlan.unknown_type",
VLAN_UNKNOWN_TYPE,
},
{
"decoder.vlan.too_many_layers",
VLAN_HEADER_TOO_MANY_LAYERS,
},
{
"decoder.ieee8021ah.header_too_small",
IEEE8021AH_HEADER_TOO_SMALL,
},
/* VNTAG EVENTS */
{
"decoder.vntag.header_too_small",
VNTAG_HEADER_TOO_SMALL,
},
{
"decoder.vntag.unknown_type",
VNTAG_UNKNOWN_TYPE,
},
/* RAW EVENTS */
{
"decoder.ipraw.invalid_ip_version",
IPRAW_INVALID_IPV,
},
/* LINKTYPE NULL EVENTS */
{
"decoder.ltnull.pkt_too_small",
LTNULL_PKT_TOO_SMALL,
},
{
"decoder.ltnull.unsupported_type",
LTNULL_UNSUPPORTED_TYPE,
},
/* SCTP EVENTS */
{
"decoder.sctp.pkt_too_small",
SCTP_PKT_TOO_SMALL,
},
/* ESP EVENTS */
{
"decoder.esp.pkt_too_small",
ESP_PKT_TOO_SMALL,
},
/* Fragmentation reasembly events. */
{
"decoder.ipv4.frag_pkt_too_large",
IPV4_FRAG_PKT_TOO_LARGE,
},
{
"decoder.ipv6.frag_pkt_too_large",
IPV6_FRAG_PKT_TOO_LARGE,
},
{
"decoder.ipv4.frag_overlap",
IPV4_FRAG_OVERLAP,
},
{
"decoder.ipv6.frag_overlap",
IPV6_FRAG_OVERLAP,
},
{
"decoder.ipv6.frag_invalid_length",
IPV6_FRAG_INVALID_LENGTH,
},
/* Fragment ignored due to internal error */
{
"decoder.ipv4.frag_ignored",
IPV4_FRAG_IGNORED,
},
{
"decoder.ipv6.frag_ignored",
IPV6_FRAG_IGNORED,
},
/* IPv4 in IPv6 events */
{
"decoder.ipv6.ipv4_in_ipv6_too_small",
IPV4_IN_IPV6_PKT_TOO_SMALL,
},
{
"decoder.ipv6.ipv4_in_ipv6_wrong_version",
IPV4_IN_IPV6_WRONG_IP_VER,
},
/* IPv6 in IPv6 events */
{
"decoder.ipv6.ipv6_in_ipv6_too_small",
IPV6_IN_IPV6_PKT_TOO_SMALL,
},
{
"decoder.ipv6.ipv6_in_ipv6_wrong_version",
IPV6_IN_IPV6_WRONG_IP_VER,
},
/* MPLS events */
{
"decoder.mpls.header_too_small",
MPLS_HEADER_TOO_SMALL,
},
{
"decoder.mpls.pkt_too_small",
MPLS_PKT_TOO_SMALL,
},
{
"decoder.mpls.bad_label_router_alert",
MPLS_BAD_LABEL_ROUTER_ALERT,
},
{
"decoder.mpls.bad_label_implicit_null",
MPLS_BAD_LABEL_IMPLICIT_NULL,
},
{
"decoder.mpls.bad_label_reserved",
MPLS_BAD_LABEL_RESERVED,
},
{
"decoder.mpls.unknown_payload_type",
MPLS_UNKNOWN_PAYLOAD_TYPE,
},
/* VXLAN events */
{
"decoder.vxlan.unknown_payload_type",
VXLAN_UNKNOWN_PAYLOAD_TYPE,
},
/* Geneve events */
{
"decoder.geneve.unknown_payload_type",
GENEVE_UNKNOWN_PAYLOAD_TYPE,
},
/* ERSPAN events */
{
"decoder.erspan.header_too_small",
ERSPAN_HEADER_TOO_SMALL,
},
{
"decoder.erspan.unsupported_version",
ERSPAN_UNSUPPORTED_VERSION,
},
{
"decoder.erspan.too_many_vlan_layers",
ERSPAN_TOO_MANY_VLAN_LAYERS,
},
/* Cisco Fabric Path/DCE events. */
{
"decoder.dce.pkt_too_small",
DCE_PKT_TOO_SMALL,
},
/* Cisco HDLC events. */
{
"decoder.chdlc.pkt_too_small",
CHDLC_PKT_TOO_SMALL,
},
/* NSH events */
{
"decoder.nsh.header_too_small",
NSH_HEADER_TOO_SMALL,
},
{
"decoder.nsh.unsupported_version",
NSH_UNSUPPORTED_VERSION,
},
{
"decoder.nsh.bad_header_length",
NSH_BAD_HEADER_LENGTH,
},
{
"decoder.nsh.reserved_type",
NSH_RESERVED_TYPE,
},
{
"decoder.nsh.unsupported_type",
NSH_UNSUPPORTED_TYPE,
},
{
"decoder.nsh.unknown_payload",
NSH_UNKNOWN_PAYLOAD,
},
{
"decoder.too_many_layers",
GENERIC_TOO_MANY_LAYERS,
},
/* STREAM EVENTS */
{
"stream.3whs_ack_in_wrong_dir",
STREAM_3WHS_ACK_IN_WRONG_DIR,
},
{
"stream.3whs_async_wrong_seq",
STREAM_3WHS_ASYNC_WRONG_SEQ,
},
{
"stream.3whs_right_seq_wrong_ack_evasion",
STREAM_3WHS_RIGHT_SEQ_WRONG_ACK_EVASION,
},
{
"stream.3whs_synack_in_wrong_direction",
STREAM_3WHS_SYNACK_IN_WRONG_DIRECTION,
},
{
"stream.3whs_synack_resend_with_diff_ack",
STREAM_3WHS_SYNACK_RESEND_WITH_DIFFERENT_ACK,
},
{
"stream.3whs_synack_resend_with_diff_seq",
STREAM_3WHS_SYNACK_RESEND_WITH_DIFF_SEQ,
},
{
"stream.3whs_synack_toserver_on_syn_recv",
STREAM_3WHS_SYNACK_TOSERVER_ON_SYN_RECV,
},
{
"stream.3whs_synack_with_wrong_ack",
STREAM_3WHS_SYNACK_WITH_WRONG_ACK,
},
{
"stream.3whs_synack_flood",
STREAM_3WHS_SYNACK_FLOOD,
},
{
"stream.3whs_syn_resend_diff_seq_on_syn_recv",
STREAM_3WHS_SYN_RESEND_DIFF_SEQ_ON_SYN_RECV,
},
{
"stream.3whs_syn_toclient_on_syn_recv",
STREAM_3WHS_SYN_TOCLIENT_ON_SYN_RECV,
},
{
"stream.3whs_wrong_seq_wrong_ack",
STREAM_3WHS_WRONG_SEQ_WRONG_ACK,
},
{
"stream.3whs_ack_data_inject",
STREAM_3WHS_ACK_DATA_INJECT,
},
{
"stream.4whs_synack_with_wrong_ack",
STREAM_4WHS_SYNACK_WITH_WRONG_ACK,
},
{
"stream.4whs_synack_with_wrong_syn",
STREAM_4WHS_SYNACK_WITH_WRONG_SYN,
},
{
"stream.4whs_wrong_seq",
STREAM_4WHS_WRONG_SEQ,
},
{
"stream.4whs_invalid_ack",
STREAM_4WHS_INVALID_ACK,
},
{
"stream.closewait_ack_out_of_window",
STREAM_CLOSEWAIT_ACK_OUT_OF_WINDOW,
},
{
"stream.closewait_fin_out_of_window",
STREAM_CLOSEWAIT_FIN_OUT_OF_WINDOW,
},
{
"stream.closewait_pkt_before_last_ack",
STREAM_CLOSEWAIT_PKT_BEFORE_LAST_ACK,
},
{
"stream.closewait_invalid_ack",
STREAM_CLOSEWAIT_INVALID_ACK,
},
{
"stream.closing_ack_wrong_seq",
STREAM_CLOSING_ACK_WRONG_SEQ,
},
{
"stream.closing_invalid_ack",
STREAM_CLOSING_INVALID_ACK,
},
{
"stream.est_packet_out_of_window",
STREAM_EST_PACKET_OUT_OF_WINDOW,
},
{
"stream.est_pkt_before_last_ack",
STREAM_EST_PKT_BEFORE_LAST_ACK,
},
{
"stream.est_synack_resend",
STREAM_EST_SYNACK_RESEND,
},
{
"stream.est_synack_resend_with_diff_ack",
STREAM_EST_SYNACK_RESEND_WITH_DIFFERENT_ACK,
},
{
"stream.est_synack_resend_with_diff_seq",
STREAM_EST_SYNACK_RESEND_WITH_DIFF_SEQ,
},
{
"stream.est_synack_toserver",
STREAM_EST_SYNACK_TOSERVER,
},
{
"stream.est_syn_resend",
STREAM_EST_SYN_RESEND,
},
{
"stream.est_syn_resend_diff_seq",
STREAM_EST_SYN_RESEND_DIFF_SEQ,
},
{
"stream.est_syn_toclient",
STREAM_EST_SYN_TOCLIENT,
},
{
"stream.est_invalid_ack",
STREAM_EST_INVALID_ACK,
},
{
"stream.fin_invalid_ack",
STREAM_FIN_INVALID_ACK,
},
{
"stream.fin1_ack_wrong_seq",
STREAM_FIN1_ACK_WRONG_SEQ,
},
{
"stream.fin1_fin_wrong_seq",
STREAM_FIN1_FIN_WRONG_SEQ,
},
{
"stream.fin1_invalid_ack",
STREAM_FIN1_INVALID_ACK,
},
{
"stream.fin2_ack_wrong_seq",
STREAM_FIN2_ACK_WRONG_SEQ,
},
{
"stream.fin2_fin_wrong_seq",
STREAM_FIN2_FIN_WRONG_SEQ,
},
{
"stream.fin2_invalid_ack",
STREAM_FIN2_INVALID_ACK,
},
{
"stream.fin_but_no_session",
STREAM_FIN_BUT_NO_SESSION,
},
{
"stream.fin_out_of_window",
STREAM_FIN_OUT_OF_WINDOW,
},
{
"stream.fin_syn",
STREAM_FIN_SYN,
},
{
"stream.lastack_ack_wrong_seq",
STREAM_LASTACK_ACK_WRONG_SEQ,
},
{
"stream.lastack_invalid_ack",
STREAM_LASTACK_INVALID_ACK,
},
{
"stream.rst_but_no_session",
STREAM_RST_BUT_NO_SESSION,
},
{
"stream.timewait_ack_wrong_seq",
STREAM_TIMEWAIT_ACK_WRONG_SEQ,
},
{
"stream.timewait_invalid_ack",
STREAM_TIMEWAIT_INVALID_ACK,
},
{
"stream.shutdown_syn_resend",
STREAM_SHUTDOWN_SYN_RESEND,
},
{
"stream.pkt_invalid_timestamp",
STREAM_PKT_INVALID_TIMESTAMP,
},
{
"stream.pkt_invalid_ack",
STREAM_PKT_INVALID_ACK,
},
{
"stream.pkt_broken_ack",
STREAM_PKT_BROKEN_ACK,
},
{
"stream.rst_invalid_ack",
STREAM_RST_INVALID_ACK,
},
{
"stream.pkt_retransmission",
STREAM_PKT_RETRANSMISSION,
},
{
"stream.pkt_spurious_retransmission",
STREAM_PKT_SPURIOUS_RETRANSMISSION,
},
{
"stream.pkt_bad_window_update",
STREAM_PKT_BAD_WINDOW_UPDATE,
},
{
"stream.suspected_rst_inject",
STREAM_SUSPECTED_RST_INJECT,
},
{
"stream.wrong_thread",
STREAM_WRONG_THREAD,
},
{
"stream.reassembly_segment_before_base_seq",
STREAM_REASSEMBLY_SEGMENT_BEFORE_BASE_SEQ,
},
{
"stream.reassembly_no_segment",
STREAM_REASSEMBLY_NO_SEGMENT,
},
{
"stream.reassembly_seq_gap",
STREAM_REASSEMBLY_SEQ_GAP,
},
{
"stream.reassembly_overlap_different_data",
STREAM_REASSEMBLY_OVERLAP_DIFFERENT_DATA,
},
{
"stream.reassembly_depth_reached",
STREAM_REASSEMBLY_DEPTH_REACHED,
},
{ NULL, 0 },
};