diff options
Diffstat (limited to 'framework/src/suricata/src/decode-ipv6.h')
| -rw-r--r-- | framework/src/suricata/src/decode-ipv6.h | 334 |
1 files changed, 0 insertions, 334 deletions
diff --git a/framework/src/suricata/src/decode-ipv6.h b/framework/src/suricata/src/decode-ipv6.h deleted file mode 100644 index da58d9e2..00000000 --- a/framework/src/suricata/src/decode-ipv6.h +++ /dev/null @@ -1,334 +0,0 @@ -/* Copyright (C) 2007-2013 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 Victor Julien <victor@inliniac.net> - */ - -#ifndef __DECODE_IPV6_H__ -#define __DECODE_IPV6_H__ - -#define IPV6_HEADER_LEN 40 -#define IPV6_MAXPACKET 65535 /* maximum packet size */ -#define IPV6_MAX_OPT 40 - -typedef struct IPV6Hdr_ -{ - union { - struct ip6_un1_ { - uint32_t ip6_un1_flow; /* 20 bits of flow-ID */ - uint16_t ip6_un1_plen; /* payload length */ - uint8_t ip6_un1_nxt; /* next header */ - uint8_t ip6_un1_hlim; /* hop limit */ - } ip6_un1; - uint8_t ip6_un2_vfc; /* 4 bits version, top 4 bits class */ - } ip6_hdrun; - - union { - struct { - uint32_t ip6_src[4]; - uint32_t ip6_dst[4]; - } ip6_un2; - uint16_t ip6_addrs[16]; - } ip6_hdrun2; -} __attribute__((__packed__)) IPV6Hdr; - -#define s_ip6_src ip6_hdrun2.ip6_un2.ip6_src -#define s_ip6_dst ip6_hdrun2.ip6_un2.ip6_dst -#define s_ip6_addrs ip6_hdrun2.ip6_addrs - -#define s_ip6_vfc ip6_hdrun.ip6_un2_vfc -#define s_ip6_flow ip6_hdrun.ip6_un1.ip6_un1_flow -#define s_ip6_plen ip6_hdrun.ip6_un1.ip6_un1_plen -#define s_ip6_nxt ip6_hdrun.ip6_un1.ip6_un1_nxt -#define s_ip6_hlim ip6_hdrun.ip6_un1.ip6_un1_hlim - -#define IPV6_GET_RAW_VER(ip6h) (((ip6h)->s_ip6_vfc & 0xf0) >> 4) -#define IPV6_GET_RAW_CLASS(ip6h) ((ntohl((ip6h)->s_ip6_flow) & 0x0FF00000) >> 20) -#define IPV6_GET_RAW_FLOW(ip6h) (ntohl((ip6h)->s_ip6_flow) & 0x000FFFFF) -#define IPV6_GET_RAW_NH(ip6h) ((ip6h)->s_ip6_nxt) -#define IPV6_GET_RAW_PLEN(ip6h) (ntohs((ip6h)->s_ip6_plen)) -#define IPV6_GET_RAW_HLIM(ip6h) ((ip6h)->s_ip6_hlim) - -#define IPV6_SET_RAW_VER(ip6h, value) ((ip6h)->s_ip6_vfc = (((ip6h)->s_ip6_vfc & 0x0f) | (value << 4))) -#define IPV6_SET_RAW_NH(ip6h, value) ((ip6h)->s_ip6_nxt = (value)) - -#define IPV6_SET_L4PROTO(p,proto) (p)->ip6vars.l4proto = proto - - -/* ONLY call these functions after making sure that: - * 1. p->ip6h is set - * 2. p->ip6h is valid (len is correct) - */ -#define IPV6_GET_VER(p) \ - IPV6_GET_RAW_VER((p)->ip6h) -#define IPV6_GET_CLASS(p) \ - IPV6_GET_RAW_CLASS((p)->ip6h) -#define IPV6_GET_FLOW(p) \ - IPV6_GET_RAW_FLOW((p)->ip6h) -#define IPV6_GET_NH(p) \ - (IPV6_GET_RAW_NH((p)->ip6h)) -#define IPV6_GET_PLEN(p) \ - IPV6_GET_RAW_PLEN((p)->ip6h) -#define IPV6_GET_HLIM(p) \ - (IPV6_GET_RAW_HLIM((p)->ip6h)) -/* XXX */ -#define IPV6_GET_L4PROTO(p) \ - ((p)->ip6vars.l4proto) - -/** \brief get the highest proto/next header field we know */ -//#define IPV6_GET_UPPER_PROTO(p) (p)->ip6eh.ip6_exthdrs_cnt ? -// (p)->ip6eh.ip6_exthdrs[(p)->ip6eh.ip6_exthdrs_cnt - 1].next : IPV6_GET_NH((p)) - -/* helper structure with parsed ipv6 info */ -typedef struct IPV6Vars_ -{ - uint8_t ip_opts_len; - uint8_t l4proto; /* the proto after the extension headers - * store while decoding so we don't have - * to loop through the exthdrs all the time */ -} IPV6Vars; - -#define CLEAR_IPV6_PACKET(p) do { \ - (p)->ip6h = NULL; \ - (p)->ip6vars.ip_opts_len = 0; \ - (p)->ip6vars.l4proto = 0; \ - (p)->ip6eh.ip6fh = NULL; \ - (p)->ip6eh.fh_offset = 0; \ - (p)->ip6eh.ip6rh = NULL; \ - (p)->ip6eh.ip6eh = NULL; \ - (p)->ip6eh.ip6dh1 = NULL; \ - (p)->ip6eh.ip6dh2 = NULL; \ - (p)->ip6eh.ip6hh = NULL; \ - (p)->ip6eh.ip6_exthdrs_cnt = 0; \ -} while (0) - -/* Fragment header */ -typedef struct IPV6FragHdr_ -{ - uint8_t ip6fh_nxt; /* next header */ - uint8_t ip6fh_reserved; /* reserved field */ - uint16_t ip6fh_offlg; /* offset, reserved, and flag */ - uint32_t ip6fh_ident; /* identification */ -} __attribute__((__packed__)) IPV6FragHdr; - -#define IPV6_EXTHDR_GET_RAW_FH_NH(p) ((p)->ip6eh.ip6fh->ip6fh_nxt) -#define IPV6_EXTHDR_GET_RAW_FH_HDRLEN(p) sizeof(IPV6FragHdr) -#define IPV6_EXTHDR_GET_RAW_FH_OFFSET(p) (ntohs((p)->ip6eh.ip6fh->ip6fh_offlg) & 0xFFF8) -#define IPV6_EXTHDR_GET_RAW_FH_FLAG(p) (ntohs((p)->ip6eh.ip6fh->ip6fh_offlg) & 0x0001) -#define IPV6_EXTHDR_GET_RAW_FH_ID(p) (ntohl((p)->ip6eh.ip6fh->ip6fh_ident)) - -#define IPV6_EXTHDR_GET_FH_NH(p) IPV6_EXTHDR_GET_RAW_FH_NH((p)) -#define IPV6_EXTHDR_GET_FH_HDRLEN(p) IPV6_EXTHDR_GET_RAW_FH_HDRLEN((p)) -#define IPV6_EXTHDR_GET_FH_OFFSET(p) IPV6_EXTHDR_GET_RAW_FH_OFFSET((p)) -#define IPV6_EXTHDR_GET_FH_FLAG(p) IPV6_EXTHDR_GET_RAW_FH_FLAG((p)) -#define IPV6_EXTHDR_GET_FH_ID(p) IPV6_EXTHDR_GET_RAW_FH_ID((p)) - -/* rfc 1826 */ -typedef struct IPV6AuthHdr_ -{ - uint8_t ip6ah_nxt; /* next header */ - uint8_t ip6ah_len; /* header length in units of 8 bytes, not - including first 8 bytes. */ - uint16_t ip6ah_reserved; /* reserved for future use */ - uint32_t ip6ah_spi; /* SECURITY PARAMETERS INDEX (SPI) */ - uint32_t ip6ah_seq; /* sequence number */ -} __attribute__((__packed__)) IPV6AuthHdr; - -typedef struct IPV6EspHdr_ -{ - uint32_t ip6esph_spi; /* SECURITY PARAMETERS INDEX (SPI) */ - uint32_t ip6esph_seq; /* sequence number */ -} __attribute__((__packed__)) IPV6EspHdr; - -typedef struct IPV6RouteHdr_ -{ - uint8_t ip6rh_nxt; /* next header */ - uint8_t ip6rh_len; /* header length in units of 8 bytes, not - including first 8 bytes. */ - uint8_t ip6rh_type; /* routing type */ - uint8_t ip6rh_segsleft; /* segments left */ -#if 0 - struct in6_addr ip6rh0_addr[23]; /* type 0 addresses */ - uint8_t ip6rh0_num_addrs; /* number of actual addresses in the - array/packet. The array is guarranteed - to be filled up to this number. */ -#endif -} __attribute__((__packed__)) IPV6RouteHdr; - -#define IPV6_EXTHDR_GET_RAW_RH_NH(p) ((p)->ip6eh.ip6rh->ip6rh_nxt) -#define IPV6_EXTHDR_GET_RAW_RH_HDRLEN(p) ((p)->ip6eh.ip6rh->ip6rh_len) -#define IPV6_EXTHDR_GET_RAW_RH_TYPE(p) (ntohs((p)->ip6eh.ip6rh->ip6rh_type)) -/* XXX */ - -#define IPV6_EXTHDR_GET_RH_NH(p) IPV6_EXTHDR_GET_RAW_RH_NH((p)) -#define IPV6_EXTHDR_GET_RH_HDRLEN(p) IPV6_EXTHDR_GET_RAW_RH_HDRLEN((p)) -#define IPV6_EXTHDR_GET_RH_TYPE(p) IPV6_EXTHDR_GET_RAW_RH_TYPE((p)) -/* XXX */ - - -/* Hop-by-Hop header and Destination Options header use options that are - * defined here. */ - -#define IPV6OPT_PAD1 0x00 -#define IPV6OPT_PADN 0x01 -#define IPV6OPT_RA 0x05 -#define IPV6OPT_JUMBO 0xC2 -#define IPV6OPT_HAO 0xC9 - -/* Home Address Option */ -typedef struct IPV6OptHAO_ -{ - uint8_t ip6hao_type; /* Option type */ - uint8_t ip6hao_len; /* Option Data len (excludes type and len) */ - struct in6_addr ip6hao_hoa; /* Home address. */ -} IPV6OptHAO; - -/* Router Alert Option */ -typedef struct IPV6OptRA_ -{ - uint8_t ip6ra_type; /* Option type */ - uint8_t ip6ra_len; /* Option Data len (excludes type and len) */ - uint16_t ip6ra_value; /* Router Alert value */ -} IPV6OptRA; - -/* Jumbo Option */ -typedef struct IPV6OptJumbo_ -{ - uint8_t ip6j_type; /* Option type */ - uint8_t ip6j_len; /* Option Data len (excludes type and len) */ - uint32_t ip6j_payload_len; /* Jumbo Payload Length */ -} IPV6OptJumbo; - -typedef struct IPV6HopOptsHdr_ -{ - uint8_t ip6hh_nxt; /* next header */ - uint8_t ip6hh_len; /* header length in units of 8 bytes, not - including first 8 bytes. */ -} __attribute__((__packed__)) IPV6HopOptsHdr; - -#define IPV6_EXTHDR_GET_RAW_HH_NH(p) ((p)->ip6eh.ip6hh->ip6hh_nxt) -#define IPV6_EXTHDR_GET_RAW_HH_HDRLEN(p) ((p)->ip6eh.ip6hh->ip6hh_len) -/* XXX */ - -#define IPV6_EXTHDR_GET_HH_NH(p) IPV6_EXTHDR_GET_RAW_HH_NH((p)) -#define IPV6_EXTHDR_GET_HH_HDRLEN(p) IPV6_EXTHDR_GET_RAW_HH_HDRLEN((p)) -/* XXX */ - -typedef struct IPV6DstOptsHdr_ -{ - uint8_t ip6dh_nxt; /* next header */ - uint8_t ip6dh_len; /* header length in units of 8 bytes, not - including first 8 bytes. */ -} __attribute__((__packed__)) IPV6DstOptsHdr; - -#define IPV6_EXTHDR_GET_RAW_DH1_NH(p) ((p)->ip6eh.ip6dh1->ip6dh_nxt) -#define IPV6_EXTHDR_GET_RAW_DH1_HDRLEN(p) ((p)->ip6eh.ip6dh1->ip6dh_len) -/* XXX */ - -#define IPV6_EXTHDR_GET_DH1_NH(p) IPV6_EXTHDR_GET_RAW_DH1_NH((p)) -#define IPV6_EXTHDR_GET_DH1_HDRLEN(p) IPV6_EXTHDR_GET_RAW_DH1_HDRLEN((p)) -/* XXX */ - -#define IPV6_EXTHDR_GET_RAW_DH2_NH(p) ((p)->ip6eh.ip6dh2->ip6dh_nxt) -#define IPV6_EXTHDR_GET_RAW_DH2_HDRLEN(p) ((p)->ip6eh.ip6dh2->ip6dh_len) -/* XXX */ - -#define IPV6_EXTHDR_GET_DH2_NH(p) IPV6_EXTHDR_GET_RAW_DH2_NH((p)) -#define IPV6_EXTHDR_GET_DH2_HDRLEN(p) IPV6_EXTHDR_GET_RAW_DH2_HDRLEN((p)) -/* XXX */ - -typedef struct IPV6GenOptHdr_ -{ - uint8_t type; - uint8_t next; - uint8_t len; - uint8_t *data; -} IPV6GenOptHdr; - -typedef struct IPV6ExtHdrs_ -{ - const IPV6FragHdr *ip6fh; - /* In fh_offset we store the offset of this extension into the packet past - * the ipv6 header. We use it in defrag for creating a defragmented packet - * without the frag header */ - uint16_t fh_offset; - - const IPV6RouteHdr *ip6rh; - const IPV6AuthHdr *ip6ah; - const IPV6EspHdr *ip6eh; - const IPV6DstOptsHdr *ip6dh1; - const IPV6DstOptsHdr *ip6dh2; - const IPV6HopOptsHdr *ip6hh; - - /* Hop-By-Hop options */ - IPV6OptHAO ip6hh_opt_hao; - IPV6OptRA ip6hh_opt_ra; - IPV6OptJumbo ip6hh_opt_jumbo; - /* Dest Options 1 */ - IPV6OptHAO ip6dh1_opt_hao; - IPV6OptRA ip6dh1_opt_ra; - IPV6OptJumbo ip6dh1_opt_jumbo; - /* Dest Options 2 */ - IPV6OptHAO ip6dh2_opt_hao; - IPV6OptRA ip6dh2_opt_ra; - IPV6OptJumbo ip6dh2_opt_jumbo; - - IPV6GenOptHdr ip6_exthdrs[IPV6_MAX_OPT]; - uint8_t ip6_exthdrs_cnt; - -} IPV6ExtHdrs; - -#define IPV6_EXTHDR_FH(p) (p)->ip6eh.ip6fh -#define IPV6_EXTHDR_RH(p) (p)->ip6eh.ip6rh -#define IPV6_EXTHDR_AH(p) (p)->ip6eh.ip6ah -#define IPV6_EXTHDR_EH(p) (p)->ip6eh.ip6eh -#define IPV6_EXTHDR_DH1(p) (p)->ip6eh.ip6dh1 -#define IPV6_EXTHDR_DH2(p) (p)->ip6eh.ip6dh2 -#define IPV6_EXTHDR_HH(p) (p)->ip6eh.ip6hh - -#define IPV6_EXTHDR_HH_HAO(p) (p)->ip6eh.ip6hh_opt_hao -#define IPV6_EXTHDR_DH1_HAO(p) (p)->ip6eh.ip6dh1_opt_hao -#define IPV6_EXTHDR_DH2_HAO(p) (p)->ip6eh.ip6dh2_opt_hao -#define IPV6_EXTHDR_HH_RA(p) (p)->ip6eh.ip6hh_opt_ra -#define IPV6_EXTHDR_DH1_RA(p) (p)->ip6eh.ip6dh1_opt_ra -#define IPV6_EXTHDR_DH2_RA(p) (p)->ip6eh.ip6dh2_opt_ra -#define IPV6_EXTHDR_HH_JUMBO(p) (p)->ip6eh.ip6hh_opt_jumbo -#define IPV6_EXTHDR_DH1_JUMBO(p) (p)->ip6eh.ip6dh1_opt_jumbo -#define IPV6_EXTHDR_DH2_JUMBO(p) (p)->ip6eh.ip6dh2_opt_jumbo - -#define IPV6_EXTHDR_SET_FH(p,pkt) IPV6_EXTHDR_FH((p)) = (IPV6FragHdr *)pkt -#define IPV6_EXTHDR_ISSET_FH(p) (IPV6_EXTHDR_FH((p)) != NULL) -#define IPV6_EXTHDR_SET_RH(p,pkt) IPV6_EXTHDR_RH((p)) = (IPV6RouteHdr *)pkt -#define IPV6_EXTHDR_ISSET_RH(p) (IPV6_EXTHDR_RH((p)) != NULL) -#define IPV6_EXTHDR_SET_AH(p,pkt) IPV6_EXTHDR_AH((p)) = (IPV6AuthHdr *)pkt -#define IPV6_EXTHDR_ISSET_AH(p) (IPV6_EXTHDR_AH((p)) != NULL) -#define IPV6_EXTHDR_SET_EH(p,pkt) IPV6_EXTHDR_EH((p)) = (IPV6EspHdr *)pkt -#define IPV6_EXTHDR_ISSET_EH(p) (IPV6_EXTHDR_EH((p)) != NULL) -#define IPV6_EXTHDR_SET_DH1(p,pkt) IPV6_EXTHDR_DH1((p)) = (IPV6DstOptsHdr *)pkt -#define IPV6_EXTHDR_ISSET_DH1(p) (IPV6_EXTHDR_DH1((p)) != NULL) -#define IPV6_EXTHDR_SET_DH2(p,pkt) IPV6_EXTHDR_DH2((p)) = (IPV6DstOptsHdr *)pkt -#define IPV6_EXTHDR_ISSET_DH2(p) (IPV6_EXTHDR_DH2((p)) != NULL) -#define IPV6_EXTHDR_SET_HH(p,pkt) IPV6_EXTHDR_HH((p)) = (IPV6HopOptsHdr *)pkt -#define IPV6_EXTHDR_ISSET_HH(p) (IPV6_EXTHDR_HH((p)) != NULL) - -void DecodeIPV6RegisterTests(void); - -#endif /* __DECODE_IPV6_H__ */ - |