667 lines
21 KiB
C
667 lines
21 KiB
C
/*
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* sf_snort_packet.h
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License Version 2 as
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* published by the Free Software Foundation. You may not use, modify or
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* distribute this program under any other version of the GNU General
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* Public License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* Copyright (C) 2005-2010 Sourcefire, Inc.
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*
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* Author: Steve Sturges
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* Andy Mullican
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*
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* Date: 5/2005
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*
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* Sourcefire Black-box Plugin API for rules
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*
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*/
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#ifndef _SF_SNORT_PACKET_H_
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#define _SF_SNORT_PACKET_H_
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#ifndef WIN32
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#include <sys/types.h>
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#include <netinet/in.h>
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#else
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#include <winsock2.h>
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#include <windows.h>
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#endif
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#include "sf_ip.h"
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#define VLAN_HDR_LEN 4
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typedef struct _VlanHeader
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{
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u_int16_t vth_pri_cfi_vlan;
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u_int16_t vth_proto; /* protocol field... */
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} VlanHeader;
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//#define NO_NON_ETHER_DECODER
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#define ETHER_HDR_LEN 14
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#define ETHERNET_TYPE_IP 0x0800
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#define ETHERNET_TYPE_8021Q 0x8100
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typedef struct _EtherHeader
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{
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u_int8_t ether_destination[6];
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u_int8_t ether_source[6];
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u_int16_t ethernet_type;
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} EtherHeader;
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/* We must twiddle to align the offset the ethernet header and align
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* the IP header on solaris -- maybe this will work on HPUX too.
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*/
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#if defined (SOLARIS) || defined (SUNOS) || defined (__sparc__) || defined(__sparc64__) || defined (HPUX)
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#define SUN_SPARC_TWIDDLE 2
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#else
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#define SUN_SPARC_TWIDDLE 0
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#endif
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#define IP_RESBIT 0x8000
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#ifdef IP_DONTFRAG
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#undef IP_DONTFRAG
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#endif
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#define IP_DONTFRAG 0x4000
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#define IP_MOREFRAGS 0x2000
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#ifndef IP_MAXPKT
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#define IP_MAXPKT 65535 /* maximum packet size */
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#endif /* IP_MAXPACKET */
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#define IP_HDR_LEN 20
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typedef struct _IPV4Header
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{
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u_int8_t version_headerlength;
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u_int8_t type_service;
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u_int16_t data_length;
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u_int16_t identifier;
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u_int16_t offset;
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u_int8_t time_to_live;
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u_int8_t proto;
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u_int16_t checksum;
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struct in_addr source;
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struct in_addr destination;
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} IPV4Header;
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#define MAX_IP_OPTIONS 40
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#define MAX_IP6_EXTENSIONS 40
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/* ip option codes */
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#define IPOPTION_EOL 0x00
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#define IPOPTION_NOP 0x01
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#define IPOPTION_RR 0x07
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#define IPOPTION_RTRALT 0x94
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#define IPOPTION_TS 0x44
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#define IPOPTION_SECURITY 0x82
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#define IPOPTION_LSRR 0x83
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#define IPOPTION_LSRR_E 0x84
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#define IPOPTION_SATID 0x88
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#define IPOPTION_SSRR 0x89
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typedef struct _IPOptions
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{
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u_int8_t option_code;
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u_int8_t length;
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u_int8_t *option_data;
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} IPOptions;
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#define TCP_HDR_LEN 20
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typedef struct _TCPHeader
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{
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u_int16_t source_port;
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u_int16_t destination_port;
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u_int32_t sequence;
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u_int32_t acknowledgement;
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u_int8_t offset_reserved;
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u_int8_t flags;
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u_int16_t window;
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u_int16_t checksum;
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u_int16_t urgent_pointer;
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} TCPHeader;
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#define TCPHEADER_FIN 0x01
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#define TCPHEADER_SYN 0x02
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#define TCPHEADER_RST 0x04
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#define TCPHEADER_PUSH 0x08
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#define TCPHEADER_ACK 0x10
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#define TCPHEADER_URG 0x20
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#define TCPHEADER_RES2 0x40
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#define TCPHEADER_RES1 0x80
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#define TCPHEADER_NORESERVED (TCPHEADER_FIN|TCPHEADER_SYN|TCPHEADER_RST \
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|TCPHEADER_PUSH|TCPHEADER_ACK|TCPHEADER_URG)
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#define MAX_TCP_OPTIONS 40
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/* tcp option codes */
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#define TCPOPT_EOL 0x00
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#define TCPOPT_NOP 0x01
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#define TCPOPT_MSS 0x02
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#define TCPOPT_WSCALE 0x03 /* window scale factor (rfc1072) */
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#define TCPOPT_SACKOK 0x04 /* selective ack ok (rfc1072) */
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#define TCPOPT_SACK 0x05 /* selective ack (rfc1072) */
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#define TCPOPT_ECHO 0x06 /* echo (rfc1072) */
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#define TCPOPT_ECHOREPLY 0x07 /* echo (rfc1072) */
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#define TCPOPT_TIMESTAMP 0x08 /* timestamps (rfc1323) */
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#define TCPOPT_CC 0x11 /* T/TCP CC options (rfc1644) */
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#define TCPOPT_CCNEW 0x12 /* T/TCP CC options (rfc1644) */
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#define TCPOPT_CCECHO 0x13 /* T/TCP CC options (rfc1644) */
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typedef IPOptions TCPOptions;
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#define UDP_HDR_LEN 8
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typedef struct _UDPHeader
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{
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u_int16_t source_port;
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u_int16_t destination_port;
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u_int16_t data_length;
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u_int16_t checksum;
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} UDPHeader;
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typedef struct _ICMPSequenceID
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{
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u_int16_t id;
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u_int16_t seq;
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} ICMPSequenceID;
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typedef struct _ICMPHeader
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{
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u_int8_t type;
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u_int8_t code;
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u_int16_t checksum;
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union
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{
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/* type 12 */
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u_int8_t parameter_problem_ptr;
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/* type 5 */
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struct in_addr gateway_addr;
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/* type 8, 0 */
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ICMPSequenceID echo;
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/* type 13, 14 */
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ICMPSequenceID timestamp;
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/* type 15, 16 */
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ICMPSequenceID info;
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int voidInfo;
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/* type 3/code=4 (Path MTU, RFC 1191) */
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struct path_mtu
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{
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u_int16_t voidInfo;
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u_int16_t next_mtu;
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} path_mtu;
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/* type 9 */
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struct router_advertisement
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{
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u_int8_t number_addrs;
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u_int8_t entry_size;
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u_int16_t lifetime;
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} router_advertisement;
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} icmp_header_union;
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#define icmp_parameter_ptr icmp_header_union.parameter_problem_ptr
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#define icmp_gateway_addr icmp_header_union.gateway_waddr
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#define icmp_echo_id icmp_header_union.echo.id
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#define icmp_echo_seq icmp_header_union.echo.seq
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#define icmp_timestamp_id icmp_header_union.timestamp.id
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#define icmp_timestamp_seq icmp_header_union.timestamp.seq
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#define icmp_info_id icmp_header_union.info.id
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#define icmp_info_seq icmp_header_union.info.seq
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#define icmp_void icmp_header_union.void
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#define icmp_nextmtu icmp_header_union.path_mtu.nextmtu
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#define icmp_ra_num_addrs icmp_header_union.router_advertisement.number_addrs
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#define icmp_ra_entry_size icmp_header_union.router_advertisement.entry_size
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#define icmp_ra_lifetime icmp_header_union.router_advertisement.lifetime
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union
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{
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/* timestamp */
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struct timestamp
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{
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u_int32_t orig;
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u_int32_t receive;
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u_int32_t transmit;
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} timestamp;
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/* IP header for unreach */
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struct ipv4_header
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{
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IPV4Header *ip;
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/* options and then 64 bits of data */
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} ipv4_header;
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/* Router Advertisement */
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struct router_address
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{
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u_int32_t addr;
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u_int32_t preference;
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} router_address;
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/* type 17, 18 */
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u_int32_t mask;
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char data[1];
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} icmp_data_union;
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#define icmp_orig_timestamp icmp_data_union.timestamp.orig
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#define icmp_recv_timestamp icmp_data_union.timestamp.receive
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#define icmp_xmit_timestamp icmp_data_union.timestamp.transmit
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#define icmp_ipheader icmp_data_union.ip_header
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#define icmp_ra_addr0 icmp_data_union.router_address
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#define icmp_mask icmp_data_union.mask
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#define icmp_data icmp_data_union.data
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} ICMPHeader;
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#define ICMP_ECHO_REPLY 0 /* Echo Reply */
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#define ICMP_DEST_UNREACHABLE 3 /* Destination Unreachable */
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#define ICMP_SOURCE_QUENCH 4 /* Source Quench */
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#define ICMP_REDIRECT 5 /* Redirect (change route) */
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#define ICMP_ECHO_REQUEST 8 /* Echo Request */
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#define ICMP_ROUTER_ADVERTISEMENT 9 /* Router Advertisement */
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#define ICMP_ROUTER_SOLICITATION 10 /* Router Solicitation */
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#define ICMP_TIME_EXCEEDED 11 /* Time Exceeded */
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#define ICMP_PARAMETER_PROBLEM 12 /* Parameter Problem */
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#define ICMP_TIMESTAMP_REQUEST 13 /* Timestamp Request */
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#define ICMP_TIMESTAMP_REPLY 14 /* Timestamp Reply */
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#define ICMP_INFO_REQUEST 15 /* Information Request */
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#define ICMP_INFO_REPLY 16 /* Information Reply */
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#define ICMP_ADDRESS_REQUEST 17 /* Address Mask Request */
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#define ICMP_ADDRESS_REPLY 18 /* Address Mask Reply */
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#define CHECKSUM_INVALID_IP 0x01
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#define CHECKSUM_INVALID_TCP 0x02
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#define CHECKSUM_INVALID_UDP 0x04
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#define CHECKSUM_INVALID_ICMP 0x08
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#define CHECKSUM_INVALID_IGMP 0x10
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typedef struct _IPv6Extension
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{
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u_int8_t option_type;
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const u_int8_t *option_data;
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} IP6Extension;
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typedef struct _IPv4Hdr
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{
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u_int8_t ip_verhl; /* version & header length */
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u_int8_t ip_tos; /* type of service */
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u_int16_t ip_len; /* datagram length */
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u_int16_t ip_id; /* identification */
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u_int16_t ip_off; /* fragment offset */
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u_int8_t ip_ttl; /* time to live field */
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u_int8_t ip_proto; /* datagram protocol */
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u_int16_t ip_csum; /* checksum */
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sfip_t ip_src; /* source IP */
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sfip_t ip_dst; /* dest IP */
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} IP4Hdr;
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typedef struct _IPv6Hdr
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{
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u_int32_t vcl; /* version, class, and label */
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u_int16_t len; /* length of the payload */
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u_int8_t next; /* next header
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* Uses the same flags as
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* the IPv4 protocol field */
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u_int8_t hop_lmt; /* hop limit */
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sfip_t ip_src;
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sfip_t ip_dst;
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} IP6Hdr;
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typedef struct _IP6FragHdr
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{
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u_int8_t ip6f_nxt; /* next header */
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u_int8_t ip6f_reserved; /* reserved field */
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u_int16_t ip6f_offlg; /* offset, reserved, and flag */
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u_int32_t ip6f_ident; /* identification */
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} IP6FragHdr;
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typedef struct _ICMP6
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{
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u_int8_t type;
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u_int8_t code;
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u_int16_t csum;
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} ICMP6Hdr;
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#define ICMP6_UNREACH 1
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#define ICMP6_BIG 2
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#define ICMP6_TIME 3
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#define ICMP6_PARAMS 4
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#define ICMP6_ECHO 128
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#define ICMP6_REPLY 129
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/* Minus 1 due to the 'body' field */
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#define ICMP6_MIN_HEADER_LEN (sizeof(ICMP6Hdr) )
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struct _SFSnortPacket;
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/* IPHeader access calls */
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sfip_t * ip4_ret_src(struct _SFSnortPacket *);
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sfip_t * ip4_ret_dst(struct _SFSnortPacket *);
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u_int16_t ip4_ret_tos(struct _SFSnortPacket *);
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u_int8_t ip4_ret_ttl(struct _SFSnortPacket *);
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u_int16_t ip4_ret_len(struct _SFSnortPacket *);
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u_int32_t ip4_ret_id(struct _SFSnortPacket *);
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u_int8_t ip4_ret_proto(struct _SFSnortPacket *);
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u_int16_t ip4_ret_off(struct _SFSnortPacket *);
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u_int8_t ip4_ret_ver(struct _SFSnortPacket *);
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u_int8_t ip4_ret_hlen(struct _SFSnortPacket *);
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sfip_t * orig_ip4_ret_src(struct _SFSnortPacket *);
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sfip_t * orig_ip4_ret_dst(struct _SFSnortPacket *);
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u_int16_t orig_ip4_ret_tos(struct _SFSnortPacket *);
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u_int8_t orig_ip4_ret_ttl(struct _SFSnortPacket *);
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u_int16_t orig_ip4_ret_len(struct _SFSnortPacket *);
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u_int32_t orig_ip4_ret_id(struct _SFSnortPacket *);
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u_int8_t orig_ip4_ret_proto(struct _SFSnortPacket *);
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u_int16_t orig_ip4_ret_off(struct _SFSnortPacket *);
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u_int8_t orig_ip4_ret_ver(struct _SFSnortPacket *);
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u_int8_t orig_ip4_ret_hlen(struct _SFSnortPacket *);
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sfip_t * ip6_ret_src(struct _SFSnortPacket *);
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sfip_t * ip6_ret_dst(struct _SFSnortPacket *);
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u_int16_t ip6_ret_toc(struct _SFSnortPacket *);
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u_int8_t ip6_ret_hops(struct _SFSnortPacket *);
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u_int16_t ip6_ret_len(struct _SFSnortPacket *);
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u_int32_t ip6_ret_id(struct _SFSnortPacket *);
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u_int8_t ip6_ret_next(struct _SFSnortPacket *);
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u_int16_t ip6_ret_off(struct _SFSnortPacket *);
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u_int8_t ip6_ret_ver(struct _SFSnortPacket *);
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u_int8_t ip6_ret_hlen(struct _SFSnortPacket *);
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sfip_t * orig_ip6_ret_src(struct _SFSnortPacket *);
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sfip_t * orig_ip6_ret_dst(struct _SFSnortPacket *);
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u_int16_t orig_ip6_ret_toc(struct _SFSnortPacket *);
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u_int8_t orig_ip6_ret_hops(struct _SFSnortPacket *);
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u_int16_t orig_ip6_ret_len(struct _SFSnortPacket *);
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u_int32_t orig_ip6_ret_id(struct _SFSnortPacket *);
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u_int8_t orig_ip6_ret_next(struct _SFSnortPacket *);
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u_int16_t orig_ip6_ret_off(struct _SFSnortPacket *);
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u_int8_t orig_ip6_ret_ver(struct _SFSnortPacket *);
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u_int8_t orig_ip6_ret_hlen(struct _SFSnortPacket *);
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typedef struct _IPH_API
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{
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sfip_t * (*iph_ret_src)(struct _SFSnortPacket *);
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sfip_t * (*iph_ret_dst)(struct _SFSnortPacket *);
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u_int16_t (*iph_ret_tos)(struct _SFSnortPacket *);
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u_int8_t (*iph_ret_ttl)(struct _SFSnortPacket *);
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u_int16_t (*iph_ret_len)(struct _SFSnortPacket *);
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u_int32_t (*iph_ret_id)(struct _SFSnortPacket *);
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u_int8_t (*iph_ret_proto)(struct _SFSnortPacket *);
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u_int16_t (*iph_ret_off)(struct _SFSnortPacket *);
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u_int8_t (*iph_ret_ver)(struct _SFSnortPacket *);
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u_int8_t (*iph_ret_hlen)(struct _SFSnortPacket *);
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sfip_t * (*orig_iph_ret_src)(struct _SFSnortPacket *);
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sfip_t * (*orig_iph_ret_dst)(struct _SFSnortPacket *);
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u_int16_t (*orig_iph_ret_tos)(struct _SFSnortPacket *);
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u_int8_t (*orig_iph_ret_ttl)(struct _SFSnortPacket *);
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u_int16_t (*orig_iph_ret_len)(struct _SFSnortPacket *);
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u_int16_t (*orig_iph_ret_id)(struct _SFSnortPacket *);
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u_int8_t (*orig_iph_ret_proto)(struct _SFSnortPacket *);
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u_int16_t (*orig_iph_ret_off)(struct _SFSnortPacket *);
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u_int8_t (*orig_iph_ret_ver)(struct _SFSnortPacket *);
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u_int8_t (*orig_iph_ret_hlen)(struct _SFSnortPacket *);
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char version;
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} IPH_API;
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#ifdef SUP_IP6
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#include "ipv6_port.h"
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#define IP6_HEADER_LEN 40
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#define IPH_API_V4 4
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#define IPH_API_V6 6
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extern IPH_API ip4;
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extern IPH_API ip6;
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#define iph_is_valid(p) (p->family != NO_IP)
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#define NO_IP 0
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#define IP6_HDR_LEN 40
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#endif
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typedef struct _MplsHdr
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{
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u_int32_t label;
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u_int8_t exp;
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u_int8_t bos;
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u_int8_t ttl;
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} MplsHdr;
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typedef struct _SFSnortPacket
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{
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const struct pcap_pkthdr *pcap_header; /* Is this GPF'd? */
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const u_int8_t *pkt_data;
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void *ether_arp_header;
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const EtherHeader *ether_header;
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const void *vlan_tag_header;
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void *ether_header_llc;
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void *ether_header_other;
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const void *gre_header;
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u_int32_t *mpls;
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const IPV4Header *ip4_header, *orig_ip4_header;
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const IPV4Header *inner_ip4_header;
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const IPV4Header *outer_ip4_header;
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const TCPHeader *tcp_header, *orig_tcp_header;
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const UDPHeader *udp_header, *orig_udp_header;
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const ICMPHeader *icmp_header, *orig_icmp_header;
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|
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const u_int8_t *payload;
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const u_int8_t *ip_payload;
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const u_int8_t *outer_ip_payload;
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const u_int8_t *ip_frag_start;
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const u_int8_t *ip4_options_data;
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const u_int8_t *tcp_options_data;
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|
|
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void *stream_session_ptr;
|
|
void *fragmentation_tracking_ptr;
|
|
void *flow_ptr;
|
|
void *stream_ptr;
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|
|
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IP4Hdr *ip4h, *orig_ip4h;
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IP6Hdr *ip6h, *orig_ip6h;
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|
ICMP6Hdr *icmp6h, *orig_icmp6h;
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|
|
|
IPH_API* iph_api;
|
|
IPH_API* orig_iph_api;
|
|
IPH_API* outer_iph_api;
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|
IPH_API* outer_orig_iph_api;
|
|
|
|
IP4Hdr inner_ip4h, inner_orig_ip4h;
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|
IP6Hdr inner_ip6h, inner_orig_ip6h;
|
|
IP4Hdr outer_ip4h, outer_orig_ip4h;
|
|
IP6Hdr outer_ip6h, outer_orig_ip6h;
|
|
|
|
MplsHdr mplsHdr;
|
|
|
|
int family;
|
|
int orig_family;
|
|
int outer_family;
|
|
int number_bytes_to_check;
|
|
|
|
//int ip_payload_length;
|
|
//int ip_payload_offset;
|
|
|
|
u_int32_t preprocessor_bit_mask;
|
|
u_int32_t preproc_reassembly_pkt_bit_mask;
|
|
|
|
u_int32_t pcap_cap_len;
|
|
u_int32_t http_pipeline_count;
|
|
u_int32_t flags;
|
|
u_int16_t proto_bits;
|
|
u_int16_t data_flags;
|
|
|
|
u_int16_t payload_size;
|
|
u_int16_t ip_payload_size;
|
|
u_int16_t normalized_payload_size;
|
|
u_int16_t actual_ip_length;
|
|
u_int16_t outer_ip_payload_size;
|
|
|
|
u_int16_t ip_fragment_offset;
|
|
u_int16_t ip_frag_length;
|
|
u_int16_t ip4_options_length;
|
|
u_int16_t tcp_options_length;
|
|
|
|
u_int16_t src_port;
|
|
u_int16_t dst_port;
|
|
u_int16_t orig_src_port;
|
|
u_int16_t orig_dst_port;
|
|
|
|
int16_t application_protocol_ordinal;
|
|
|
|
u_int8_t ip_fragmented;
|
|
u_int8_t ip_more_fragments;
|
|
u_int8_t ip_dont_fragment;
|
|
u_int8_t ip_reserved;
|
|
|
|
u_int8_t num_uris;
|
|
u_int8_t checksums_invalid;
|
|
u_int8_t encapsulated;
|
|
|
|
u_int8_t num_ip_options;
|
|
u_int8_t num_tcp_options;
|
|
u_int8_t num_ip6_extensions;
|
|
u_int8_t ip6_frag_extension;
|
|
|
|
u_char ip_last_option_invalid_flag;
|
|
u_char tcp_last_option_invalid_flag;
|
|
|
|
#ifndef NO_NON_ETHER_DECODER
|
|
const void *fddi_header;
|
|
void *fddi_saps;
|
|
void *fddi_sna;
|
|
void *fddi_iparp;
|
|
void *fddi_other;
|
|
|
|
const void *tokenring_header;
|
|
void *tokenring_header_llc;
|
|
void *tokenring_header_mr;
|
|
|
|
void *pflog1_header;
|
|
void *pflog2_header;
|
|
void *pflog3_header;
|
|
|
|
const void *sll_header;
|
|
const void *wifi_header;
|
|
const void *ppp_over_ether_header;
|
|
|
|
const void *ether_eapol_header;
|
|
const void *eapol_headear;
|
|
const u_int8_t *eapol_type;
|
|
void *eapol_key;
|
|
#endif
|
|
|
|
IPOptions ip_options[MAX_IP_OPTIONS];
|
|
TCPOptions tcp_options[MAX_TCP_OPTIONS];
|
|
IP6Extension ip6_extensions[MAX_IP6_EXTENSIONS];
|
|
|
|
/**policyId provided in configuration file. Used for correlating configuration
|
|
* with event output
|
|
*/
|
|
uint16_t config_policy_id;
|
|
|
|
} SFSnortPacket;
|
|
|
|
#define PKT_ZERO_LEN offsetof(SFSnortPacket, ip_options)
|
|
|
|
#define PROTO_BIT__IP 0x0001
|
|
#define PROTO_BIT__ARP 0x0002
|
|
#define PROTO_BIT__TCP 0x0004
|
|
#define PROTO_BIT__UDP 0x0008
|
|
#define PROTO_BIT__ICMP 0x0010
|
|
#define PROTO_BIT__ALL 0xffff
|
|
|
|
#define DATA_FLAGS_GZIP 0x0002
|
|
|
|
#define IsIP(p) (IPH_IS_VALID(p))
|
|
#define IsTCP(p) (IsIP(p) && (GET_IPH_PROTO(p) == IPPROTO_TCP))
|
|
#define IsUDP(p) (IsIP(p) && (GET_IPH_PROTO(p) == IPPROTO_UDP))
|
|
#define IsICMP(p) (IsIP(p) && (GET_IPH_PROTO(p) == IPPROTO_ICMP))
|
|
|
|
#define SET_IP4_VER(ip_header, value) \
|
|
((ip_header)->version_headerlength = \
|
|
(unsigned char)(((ip_header)->version_headerlength & 0x0f) | (value << 4)))
|
|
#define SET_IP4_HLEN(ip_header, value) \
|
|
((ip_header)->version_headerlength = \
|
|
(unsigned char)(((ip_header)->version_headerlength & 0xf0) | (value & 0x0f)))
|
|
|
|
#define SET_TCP_HDR_OFFSET(tcp_header, value) \
|
|
((tcp_header)->offset_reserved = \
|
|
(unsigned char)(((tcp_header)->offset_reserved & 0x0f) | (value << 4)))
|
|
|
|
#define FLAG_REBUILT_FRAG 0x00000001
|
|
#define FLAG_REBUILT_STREAM 0x00000002
|
|
#define FLAG_STREAM_UNEST_UNI 0x00000004
|
|
#define FLAG_STREAM_UNEST_BI 0x00000008
|
|
#define FLAG_STREAM_EST 0x00000010
|
|
#define FLAG_FROM_SERVER 0x00000040
|
|
#define FLAG_FROM_CLIENT 0x00000080
|
|
#define FLAG_HTTP_DECODE 0x00000100
|
|
#define FLAG_STREAM_INSERT 0x00000400
|
|
#define FLAG_ALT_DECODE 0x00000800
|
|
#define FLAG_STREAM_TWH 0x00001000
|
|
#define FLAG_IGNORE_PORT 0x00002000 /* this packet should be ignored, based on port */
|
|
#define FLAG_PASS_RULE 0x00004000 /* this packet has matched a pass rule */
|
|
#define FLAG_NO_DETECT 0x00008000 /* this packet should not be preprocessed */
|
|
#define FLAG_PREPROC_RPKT 0x00010000 /* set in original packet to indicate a preprocessor
|
|
* has a reassembled packet */
|
|
#define FLAG_DCE_RPKT 0x00020000 /* this is a DCE/RPC reassembled packet */
|
|
#define FLAG_IP_RULE 0x00040000 /* this packet being evaluated against an ip rule */
|
|
#define FLAG_IP_RULE_2ND 0x00080000 /* this packet is being evaluated against an IP rule */
|
|
|
|
#define FLAG_SMB_SEG 0x00100000 /* this is an SMB desegmented packet */
|
|
#define FLAG_DCE_SEG 0x00200000 /* this is a DCE/RPC desegmented packet */
|
|
#define FLAG_DCE_FRAG 0x00400000 /* this is a DCE/RPC defragmented packet */
|
|
#define FLAG_SMB_TRANS 0x00800000 /* this is an SMB Transact reassembled packet */
|
|
#define FLAG_DCE_PKT 0x01000000 /* this is a DCE packet processed by DCE/RPC preprocessor */
|
|
#define FLAG_RPC_PKT 0x02000000 /* this is an ONC RPC packet processed by rpc decode preprocessor */
|
|
|
|
#define FLAG_HTTP_RESP_BODY 0x04000000 /* this packet contains non-zipped HTTP response Body */
|
|
|
|
#define FLAG_STATELESS 0x10000000 /* Packet has matched a stateless rule */
|
|
#define FLAG_INLINE_DROP 0x20000000
|
|
#define FLAG_OBFUSCATED 0x40000000 /* this packet has been obfuscated */
|
|
#define FLAG_LOGGED 0x80000000 /* this packet has been logged */
|
|
|
|
#define SFTARGET_UNKNOWN_PROTOCOL -1
|
|
|
|
/* Only include application layer reassembled data
|
|
* flags here - no PKT_REBUILT_FRAG */
|
|
#define REASSEMBLED_PACKET_FLAGS \
|
|
(FLAG_REBUILT_STREAM|FLAG_SMB_SEG|FLAG_DCE_SEG|FLAG_DCE_FRAG|FLAG_SMB_TRANS)
|
|
|
|
#endif /* _SF_SNORT_PACKET_H_ */
|
|
|