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/* packet-ipv6.c
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* Routines for IPv6 packet disassembly
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*
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* $ Id $
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*
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* Wireshark - Network traffic analyzer
* By Gerald Combs < gerald @ wireshark . org >
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* Copyright 1998 Gerald Combs
*
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* SHIM6 support added by Matthijs Mekking < matthijs @ NLnetLabs . nl >
*
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* MobileIPv6 support added by Tomislav Borosa < tomislav . borosa @ siemens . hr >
*
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* This program is free software ; you can redistribute it and / or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation ; either version 2
* of the License , or ( at your option ) any later version .
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*
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* 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 .
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*
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* You should have received a copy of the GNU General Public License
* along with this program ; if not , write to the Free Software
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* Foundation , Inc . , 51 Franklin Street , Fifth Floor , Boston , MA 02110 - 1301 USA .
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*/
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# include "config.h"
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# include <math.h>
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# include <glib.h>
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# include <epan/packet.h>
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# include <epan/expert.h>
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# include <epan/ip_opts.h>
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# include <epan/addr_resolv.h>
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# include <epan/prefs.h>
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# include <epan/reassemble.h>
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# include <epan/ipproto.h>
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# include <epan/ipv6-utils.h>
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# include <epan/etypes.h>
# include <epan/ppptypes.h>
# include <epan/aftypes.h>
# include <epan/nlpid.h>
# include <epan/arcnet_pids.h>
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# include <epan/in_cksum.h>
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# include <epan/expert.h>
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# include <epan/wmem/wmem.h>
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# include <epan/decode_as.h>
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# include <epan/tap.h>
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# include "packet-ipsec.h"
# include "packet-ipv6.h"
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# include "packet-ip.h"
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# ifdef HAVE_GEOIP_V6
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# include <GeoIP.h>
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# include <epan/geoip_db.h>
# endif /* HAVE_GEOIP_V6 */
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void proto_register_ipv6 ( void ) ;
void proto_reg_handoff_ipv6 ( void ) ;
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/* Option types and related macros */
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# define IP6OPT_PAD1 0x00 /* 00 0 00000 */
# define IP6OPT_PADN 0x01 /* 00 0 00001 */
# define IP6OPT_TEL 0x04 /* 00 0 00100 */
# define IP6OPT_RTALERT 0x05 /* 00 0 00101 */
# define IP6OPT_CALIPSO 0x07 /* 00 0 00111 */
# define IP6OPT_QUICKSTART 0x26 /* 00 1 00110 */
# define IP6OPT_ENDI 0x8A /* 10 0 01010 */
# define IP6OPT_EXP_1E 0x1E /* 00 0 11110 */
# define IP6OPT_EXP_3E 0x3E /* 00 1 11110 */
# define IP6OPT_EXP_5E 0x5E /* 01 0 11110 */
# define IP6OPT_RPL 0x63 /* 01 1 00011 */
# define IP6OPT_EXP_7E 0x7E /* 01 1 11110 */
# define IP6OPT_EXP_9E 0x9E /* 10 0 11110 */
# define IP6OPT_EXP_BE 0xBE /* 10 1 11110 */
# define IP6OPT_JUMBO 0xC2 /* 11 0 00010 = 194 */
# define IP6OPT_HOME_ADDRESS 0xC9 /* 11 0 01001 */
# define IP6OPT_EXP_DE 0xDE /* 11 0 11110 */
# define IP6OPT_EXP_FE 0xFE /* 11 1 11110 */
# define IP6OPT_RTALERT_MLD 0 /* Datagram contains MLD msg */
# define IP6OPT_RTALERT_RSVP 1 /* Datagram contains RSVP msg */
# define IP6OPT_RTALERT_ACTNET 2 /* Datagram contains ACTNET msg */
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/* Differentiated Services Field. See RFCs 2474, 2597 and 2598. */
# define IPDSFIELD_DSCP_MASK 0xFC
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# define IPDSFIELD_ECN_MASK 0x03
# define IPDSFIELD_DSCP_SHIFT 2
# define IPDSFIELD_DSCP(dsfield) (((dsfield)&IPDSFIELD_DSCP_MASK)>>IPDSFIELD_DSCP_SHIFT)
# define IPDSFIELD_ECN(dsfield) ((dsfield)&IPDSFIELD_ECN_MASK)
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# define IPDSFIELD_DSCP_DEFAULT 0x00
# define IPDSFIELD_DSCP_CS1 0x08
# define IPDSFIELD_DSCP_CS2 0x10
# define IPDSFIELD_DSCP_CS3 0x18
# define IPDSFIELD_DSCP_CS4 0x20
# define IPDSFIELD_DSCP_CS5 0x28
# define IPDSFIELD_DSCP_CS6 0x30
# define IPDSFIELD_DSCP_CS7 0x38
# define IPDSFIELD_DSCP_AF11 0x0A
# define IPDSFIELD_DSCP_AF12 0x0C
# define IPDSFIELD_DSCP_AF13 0x0E
# define IPDSFIELD_DSCP_AF21 0x12
# define IPDSFIELD_DSCP_AF22 0x14
# define IPDSFIELD_DSCP_AF23 0x16
# define IPDSFIELD_DSCP_AF31 0x1A
# define IPDSFIELD_DSCP_AF32 0x1C
# define IPDSFIELD_DSCP_AF33 0x1E
# define IPDSFIELD_DSCP_AF41 0x22
# define IPDSFIELD_DSCP_AF42 0x24
# define IPDSFIELD_DSCP_AF43 0x26
# define IPDSFIELD_DSCP_EF 0x2E
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# define IPDSFIELD_ECT_MASK 0x02
# define IPDSFIELD_CE_MASK 0x01
/* RPL Routing header */
# define IP6RRPL_BITMASK_CMPRI 0xF0000000
# define IP6RRPL_BITMASK_CMPRE 0x0F000000
# define IP6RRPL_BITMASK_PAD 0x00F00000
# define IP6RRPL_BITMASK_RESERVED 0x000FFFFF
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static int ipv6_tap = - 1 ;
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static int proto_ipv6 = - 1 ;
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static int hf_ipv6_version = - 1 ;
static int hf_ip_version = - 1 ;
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static int hf_ipv6_class = - 1 ;
static int hf_ipv6_flow = - 1 ;
static int hf_ipv6_plen = - 1 ;
static int hf_ipv6_nxt = - 1 ;
static int hf_ipv6_hlim = - 1 ;
static int hf_ipv6_src = - 1 ;
static int hf_ipv6_src_host = - 1 ;
static int hf_ipv6_src_sa_mac = - 1 ;
static int hf_ipv6_src_isatap_ipv4 = - 1 ;
static int hf_ipv6_src_6to4_gateway_ipv4 = - 1 ;
static int hf_ipv6_src_6to4_sla_id = - 1 ;
static int hf_ipv6_src_teredo_server_ipv4 = - 1 ;
static int hf_ipv6_src_teredo_port = - 1 ;
static int hf_ipv6_src_teredo_client_ipv4 = - 1 ;
static int hf_ipv6_dst = - 1 ;
static int hf_ipv6_dst_host = - 1 ;
static int hf_ipv6_dst_sa_mac = - 1 ;
static int hf_ipv6_dst_isatap_ipv4 = - 1 ;
static int hf_ipv6_dst_6to4_gateway_ipv4 = - 1 ;
static int hf_ipv6_dst_6to4_sla_id = - 1 ;
static int hf_ipv6_dst_teredo_server_ipv4 = - 1 ;
static int hf_ipv6_dst_teredo_port = - 1 ;
static int hf_ipv6_dst_teredo_client_ipv4 = - 1 ;
static int hf_ipv6_addr = - 1 ;
static int hf_ipv6_host = - 1 ;
static int hf_ipv6_sa_mac = - 1 ;
static int hf_ipv6_isatap_ipv4 = - 1 ;
static int hf_ipv6_6to4_gateway_ipv4 = - 1 ;
static int hf_ipv6_6to4_sla_id = - 1 ;
static int hf_ipv6_teredo_server_ipv4 = - 1 ;
static int hf_ipv6_teredo_port = - 1 ;
static int hf_ipv6_teredo_client_ipv4 = - 1 ;
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static int hf_ipv6_opt = - 1 ;
static int hf_ipv6_opt_type = - 1 ;
static int hf_ipv6_opt_length = - 1 ;
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static int hf_ipv6_opt_pad1 = - 1 ;
static int hf_ipv6_opt_padn = - 1 ;
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static int hf_ipv6_opt_tel = - 1 ;
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static int hf_ipv6_opt_rtalert = - 1 ;
static int hf_ipv6_opt_jumbo = - 1 ;
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static int hf_ipv6_opt_calipso_doi = - 1 ;
static int hf_ipv6_opt_calipso_cmpt_length = - 1 ;
static int hf_ipv6_opt_calipso_sens_level = - 1 ;
static int hf_ipv6_opt_calipso_checksum = - 1 ;
static int hf_ipv6_opt_calipso_cmpt_bitmap = - 1 ;
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static int hf_ipv6_opt_qs_func = - 1 ;
static int hf_ipv6_opt_qs_rate = - 1 ;
static int hf_ipv6_opt_qs_ttl = - 1 ;
static int hf_ipv6_opt_qs_ttl_diff = - 1 ;
static int hf_ipv6_opt_qs_unused = - 1 ;
static int hf_ipv6_opt_qs_nonce = - 1 ;
static int hf_ipv6_opt_qs_reserved = - 1 ;
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static int hf_ipv6_opt_rpl_flag = - 1 ;
static int hf_ipv6_opt_rpl_flag_o = - 1 ;
static int hf_ipv6_opt_rpl_flag_r = - 1 ;
static int hf_ipv6_opt_rpl_flag_f = - 1 ;
static int hf_ipv6_opt_rpl_flag_rsv = - 1 ;
static int hf_ipv6_opt_rpl_instance_id = - 1 ;
static int hf_ipv6_opt_rpl_senderrank = - 1 ;
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static int hf_ipv6_opt_experimental = - 1 ;
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static int hf_ipv6_opt_unknown = - 1 ;
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static int hf_ipv6_dst_opt = - 1 ;
static int hf_ipv6_hop_opt = - 1 ;
static int hf_ipv6_unk_hdr = - 1 ;
static int hf_ipv6_routing_hdr_opt = - 1 ;
static int hf_ipv6_routing_hdr_type = - 1 ;
static int hf_ipv6_routing_hdr_left = - 1 ;
static int hf_ipv6_routing_hdr_addr = - 1 ;
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static int hf_ipv6_frag_nxt = - 1 ;
static int hf_ipv6_frag_reserved = - 1 ;
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static int hf_ipv6_frag_offset = - 1 ;
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static int hf_ipv6_frag_reserved_bits = - 1 ;
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static int hf_ipv6_frag_more = - 1 ;
static int hf_ipv6_frag_id = - 1 ;
static int hf_ipv6_fragments = - 1 ;
static int hf_ipv6_fragment = - 1 ;
static int hf_ipv6_fragment_overlap = - 1 ;
static int hf_ipv6_fragment_overlap_conflict = - 1 ;
static int hf_ipv6_fragment_multiple_tails = - 1 ;
static int hf_ipv6_fragment_too_long_fragment = - 1 ;
static int hf_ipv6_fragment_error = - 1 ;
static int hf_ipv6_fragment_count = - 1 ;
static int hf_ipv6_reassembled_in = - 1 ;
static int hf_ipv6_reassembled_length = - 1 ;
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static int hf_ipv6_reassembled_data = - 1 ;
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static int hf_ipv6_mipv6_home_address = - 1 ;
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static int hf_ipv6_routing_hdr_rpl_cmprI = - 1 ;
static int hf_ipv6_routing_hdr_rpl_cmprE = - 1 ;
static int hf_ipv6_routing_hdr_rpl_pad = - 1 ;
static int hf_ipv6_routing_hdr_rpl_reserved = - 1 ;
static int hf_ipv6_routing_hdr_rpl_segments = - 1 ;
static int hf_ipv6_routing_hdr_rpl_addr = - 1 ;
static int hf_ipv6_routing_hdr_rpl_fulladdr = - 1 ;
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static int hf_ipv6_shim6 = - 1 ;
static int hf_ipv6_shim6_nxt = - 1 ;
static int hf_ipv6_shim6_len = - 1 ;
static int hf_ipv6_shim6_p = - 1 ;
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/* context tag is 49 bits, cannot be used for filter yet */
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static int hf_ipv6_shim6_ct = - 1 ;
static int hf_ipv6_shim6_type = - 1 ;
static int hf_ipv6_shim6_proto = - 1 ;
static int hf_ipv6_shim6_checksum = - 1 ;
static int hf_ipv6_shim6_checksum_bad = - 1 ;
static int hf_ipv6_shim6_checksum_good = - 1 ;
static int hf_ipv6_shim6_inonce = - 1 ; /* also for request nonce */
static int hf_ipv6_shim6_rnonce = - 1 ;
static int hf_ipv6_shim6_precvd = - 1 ;
static int hf_ipv6_shim6_psent = - 1 ;
static int hf_ipv6_shim6_psrc = - 1 ;
static int hf_ipv6_shim6_pdst = - 1 ;
static int hf_ipv6_shim6_pnonce = - 1 ;
static int hf_ipv6_shim6_pdata = - 1 ;
static int hf_ipv6_shim6_sulid = - 1 ;
static int hf_ipv6_shim6_rulid = - 1 ;
static int hf_ipv6_shim6_reap = - 1 ;
static int hf_ipv6_shim6_opt_type = - 1 ;
static int hf_ipv6_shim6_opt_len = - 1 ;
static int hf_ipv6_shim6_opt_total_len = - 1 ;
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static int hf_ipv6_shim6_opt_loc_verif_methods = - 1 ;
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static int hf_ipv6_shim6_opt_critical = - 1 ;
static int hf_ipv6_shim6_opt_loclist = - 1 ;
static int hf_ipv6_shim6_locator = - 1 ;
static int hf_ipv6_shim6_loc_flag = - 1 ;
static int hf_ipv6_shim6_loc_prio = - 1 ;
static int hf_ipv6_shim6_loc_weight = - 1 ;
static int hf_ipv6_shim6_opt_locnum = - 1 ;
static int hf_ipv6_shim6_opt_elemlen = - 1 ;
static int hf_ipv6_shim6_opt_fii = - 1 ;
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static int hf_ipv6_traffic_class_dscp = - 1 ;
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static int hf_ipv6_traffic_class_ect = - 1 ;
static int hf_ipv6_traffic_class_ce = - 1 ;
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# ifdef HAVE_GEOIP_V6
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static int hf_geoip_country = - 1 ;
static int hf_geoip_city = - 1 ;
static int hf_geoip_org = - 1 ;
static int hf_geoip_isp = - 1 ;
static int hf_geoip_asnum = - 1 ;
static int hf_geoip_lat = - 1 ;
static int hf_geoip_lon = - 1 ;
static int hf_geoip_src_country = - 1 ;
static int hf_geoip_src_city = - 1 ;
static int hf_geoip_src_org = - 1 ;
static int hf_geoip_src_isp = - 1 ;
static int hf_geoip_src_asnum = - 1 ;
static int hf_geoip_src_lat = - 1 ;
static int hf_geoip_src_lon = - 1 ;
static int hf_geoip_dst_country = - 1 ;
static int hf_geoip_dst_city = - 1 ;
static int hf_geoip_dst_org = - 1 ;
static int hf_geoip_dst_isp = - 1 ;
static int hf_geoip_dst_asnum = - 1 ;
static int hf_geoip_dst_lat = - 1 ;
static int hf_geoip_dst_lon = - 1 ;
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# endif /* HAVE_GEOIP_V6 */
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static gint ett_ipv6 = - 1 ;
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static gint ett_ipv6_opt = - 1 ;
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static gint ett_ipv6_opt_flag = - 1 ;
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static gint ett_ipv6_version = - 1 ;
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static gint ett_ipv6_shim6 = - 1 ;
static gint ett_ipv6_shim6_option = - 1 ;
static gint ett_ipv6_shim6_locators = - 1 ;
static gint ett_ipv6_shim6_verif_methods = - 1 ;
static gint ett_ipv6_shim6_loc_pref = - 1 ;
static gint ett_ipv6_shim6_probes_sent = - 1 ;
static gint ett_ipv6_shim6_probe_sent = - 1 ;
static gint ett_ipv6_shim6_probes_rcvd = - 1 ;
static gint ett_ipv6_shim6_probe_rcvd = - 1 ;
static gint ett_ipv6_shim6_cksum = - 1 ;
static gint ett_ipv6_fragments = - 1 ;
static gint ett_ipv6_fragment = - 1 ;
static gint ett_ipv6_traffic_class = - 1 ;
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# ifdef HAVE_GEOIP_V6
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static gint ett_geoip_info = - 1 ;
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# endif /* HAVE_GEOIP_V6 */
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static expert_field ei_ipv6_dst_addr_not_multicast = EI_INIT ;
static expert_field ei_ipv6_src_route_list_mult_inst_same_addr = EI_INIT ;
static expert_field ei_ipv6_src_route_list_src_addr = EI_INIT ;
static expert_field ei_ipv6_src_route_list_dst_addr = EI_INIT ;
static expert_field ei_ipv6_src_route_list_multicast_addr = EI_INIT ;
static expert_field ei_ipv6_cmpri_cmpre_pad = EI_INIT ;
static expert_field ei_ipv6_routing_hdr_rpl_reserved = EI_INIT ;
static expert_field ei_ipv6_opt_tel_invalid_len = EI_INIT ;
static expert_field ei_ipv6_opt_jumbo_invalid_len = EI_INIT ;
static expert_field ei_ipv6_opt_rtalert_invalid_len = EI_INIT ;
static expert_field ei_ipv6_mipv6_home_address_invalid_len = EI_INIT ;
static expert_field ei_ipv6_shim6_opt_elemlen_invalid = EI_INIT ;
static expert_field ei_ipv6_shim6_checksum_bad = EI_INIT ;
static expert_field ei_ipv6_routing_hdr_rpl_segments_ge0 = EI_INIT ;
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static void ipv6_prompt ( packet_info * pinfo , gchar * result )
{
g_snprintf ( result , MAX_DECODE_AS_PROMPT_LEN , " IP protocol %u as " , pinfo - > ipproto ) ;
}
static gpointer ipv6_value ( packet_info * pinfo )
{
return GUINT_TO_POINTER ( pinfo - > ipproto ) ;
}
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static const fragment_items ipv6_frag_items = {
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& ett_ipv6_fragment ,
& ett_ipv6_fragments ,
& hf_ipv6_fragments ,
& hf_ipv6_fragment ,
& hf_ipv6_fragment_overlap ,
& hf_ipv6_fragment_overlap_conflict ,
& hf_ipv6_fragment_multiple_tails ,
& hf_ipv6_fragment_too_long_fragment ,
& hf_ipv6_fragment_error ,
& hf_ipv6_fragment_count ,
& hf_ipv6_reassembled_in ,
& hf_ipv6_reassembled_length ,
& hf_ipv6_reassembled_data ,
" IPv6 fragments "
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} ;
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static dissector_handle_t data_handle ;
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static dissector_table_t ip_dissector_table ;
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/* Reassemble fragmented datagrams */
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static gboolean ipv6_reassemble = TRUE ;
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/* Place IPv6 summary in proto tree */
static gboolean ipv6_summary_in_tree = TRUE ;
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# ifdef HAVE_GEOIP_V6
/* Look up addresses in GeoIP */
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static gboolean ipv6_use_geoip = TRUE ;
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# endif /* HAVE_GEOIP_V6 */
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/* Perform strict RFC adherence checking */
static gboolean g_ipv6_rpl_srh_strict_rfc_checking = FALSE ;
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# ifndef offsetof
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# define offsetof(type, member) ((size_t)(&((type *)0)->member))
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# endif
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/*
* defragmentation of IPv6
*/
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static reassembly_table ipv6_reassembly_table ;
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/* http://www.iana.org/assignments/icmpv6-parameters (last updated 2012-12-22) */
static const value_string ipv6_opt_vals [ ] = {
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{ IP6OPT_PAD1 , " Pad1 " } ,
{ IP6OPT_PADN , " PadN " } ,
{ IP6OPT_TEL , " Tunnel Encapsulation Limit " } ,
{ IP6OPT_RTALERT , " Router Alert " } ,
{ IP6OPT_CALIPSO , " Calipso " } ,
{ IP6OPT_QUICKSTART , " Quick Start " } ,
{ IP6OPT_ENDI , " Endpoint Identification " } ,
{ IP6OPT_EXP_1E , " Experimental (0x1E) " } ,
{ IP6OPT_EXP_3E , " Experimental (0x3E) " } ,
{ IP6OPT_EXP_5E , " Experimental (0x5E) " } ,
{ IP6OPT_RPL , " RPL Option " } ,
{ IP6OPT_EXP_7E , " Experimental (0x7E) " } ,
{ IP6OPT_EXP_9E , " Experimental (0x9E) " } ,
{ IP6OPT_EXP_BE , " Experimental (0xBE) " } ,
{ IP6OPT_JUMBO , " Jumbo " } ,
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{ IP6OPT_HOME_ADDRESS , " Home Address " } ,
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{ IP6OPT_EXP_DE , " Experimental (0xDE) " } ,
{ IP6OPT_EXP_FE , " Experimental (0xFE) " } ,
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{ 0 , NULL }
} ;
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void
capture_ipv6 ( const guchar * pd , int offset , int len , packet_counts * ld )
{
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guint8 nxt ;
int advance ;
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if ( ! BYTES_ARE_IN_FRAME ( offset , len , 4 + 4 + 16 + 16 ) ) {
ld - > other + + ;
return ;
}
nxt = pd [ offset + 6 ] ; /* get the "next header" value */
offset + = 4 + 4 + 16 + 16 ; /* skip past the IPv6 header */
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again :
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switch ( nxt ) {
case IP_PROTO_HOPOPTS :
case IP_PROTO_ROUTING :
case IP_PROTO_DSTOPTS :
if ( ! BYTES_ARE_IN_FRAME ( offset , len , 2 ) ) {
ld - > other + + ;
return ;
}
nxt = pd [ offset ] ;
advance = ( pd [ offset + 1 ] + 1 ) < < 3 ;
if ( ! BYTES_ARE_IN_FRAME ( offset , len , advance ) ) {
ld - > other + + ;
return ;
}
offset + = advance ;
goto again ;
case IP_PROTO_FRAGMENT :
if ( ! BYTES_ARE_IN_FRAME ( offset , len , 2 ) ) {
ld - > other + + ;
return ;
}
nxt = pd [ offset ] ;
advance = 8 ;
if ( ! BYTES_ARE_IN_FRAME ( offset , len , advance ) ) {
ld - > other + + ;
return ;
}
offset + = advance ;
goto again ;
case IP_PROTO_AH :
if ( ! BYTES_ARE_IN_FRAME ( offset , len , 2 ) ) {
ld - > other + + ;
return ;
}
nxt = pd [ offset ] ;
advance = 8 + ( ( pd [ offset + 1 ] - 1 ) < < 2 ) ;
if ( ! BYTES_ARE_IN_FRAME ( offset , len , advance ) ) {
ld - > other + + ;
return ;
}
offset + = advance ;
goto again ;
case IP_PROTO_SHIM6 :
case IP_PROTO_SHIM6_OLD :
if ( ! BYTES_ARE_IN_FRAME ( offset , len , 2 ) ) {
ld - > other + + ;
return ;
}
nxt = pd [ offset ] ;
advance = ( pd [ offset + 1 ] + 1 ) < < 3 ;
if ( ! BYTES_ARE_IN_FRAME ( offset , len , advance ) ) {
ld - > other + + ;
return ;
}
offset + = advance ;
goto again ;
}
switch ( nxt ) {
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case IP_PROTO_SCTP :
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ld - > sctp + + ;
break ;
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case IP_PROTO_TCP :
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ld - > tcp + + ;
break ;
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case IP_PROTO_UDP :
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case IP_PROTO_UDPLITE :
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ld - > udp + + ;
break ;
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case IP_PROTO_ICMP :
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case IP_PROTO_ICMPV6 : /* XXX - separate counters? */
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ld - > icmp + + ;
break ;
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case IP_PROTO_OSPF :
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ld - > ospf + + ;
break ;
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case IP_PROTO_GRE :
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ld - > gre + + ;
break ;
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case IP_PROTO_VINES :
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ld - > vines + + ;
break ;
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default :
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ld - > other + + ;
}
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}
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/**
* Unicast Scope
* Note that we must check topmost 10 bits only , not 16 bits ( see RFC2373 ) .
*/
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#if 0 /* XXX Currently unused */
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static inline gboolean in6_is_addr_link_local ( struct e_in6_addr * a ) {
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if ( ( a - > bytes [ 0 ] = = 0xfe ) & & ( ( a - > bytes [ 1 ] & 0xc0 ) = = 0x80 ) ) {
return TRUE ;
}
return FALSE ;
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}
static inline gboolean in6_is_addr_sitelocal ( struct e_in6_addr * a ) {
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if ( ( a - > bytes [ 0 ] = = 0xfe ) & & ( ( a - > bytes [ 1 ] & 0xc0 ) = = 0xc0 ) ) {
return TRUE ;
}
return FALSE ;
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}
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# endif
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/**
* Multicast
*/
static inline gboolean in6_is_addr_multicast ( struct e_in6_addr * a ) {
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if ( a - > bytes [ 0 ] = = 0xff ) {
return TRUE ;
}
return FALSE ;
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}
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# ifdef HAVE_GEOIP_V6
static void
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add_geoip_info_entry ( proto_tree * geoip_info_item , tvbuff_t * tvb , gint offset , const struct e_in6_addr * ip , int isdst )
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{
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proto_tree * geoip_info_tree ;
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guint num_dbs = geoip_db_num_dbs ( ) ;
guint item_cnt = 0 ;
guint dbnum ;
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geoip_info_tree = proto_item_add_subtree ( geoip_info_item , ett_geoip_info ) ;
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for ( dbnum = 0 ; dbnum < num_dbs ; dbnum + + ) {
const char * geoip_str = geoip_db_lookup_ipv6 ( dbnum , * ip , NULL ) ;
int db_type = geoip_db_type ( dbnum ) ;
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int geoip_hf , geoip_local_hf ;
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switch ( db_type ) {
case GEOIP_COUNTRY_EDITION_V6 :
geoip_hf = hf_geoip_country ;
geoip_local_hf = ( isdst ) ? hf_geoip_dst_country : hf_geoip_src_country ;
break ;
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# if NUM_DB_TYPES > 31
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case GEOIP_CITY_EDITION_REV0_V6 :
case GEOIP_CITY_EDITION_REV1_V6 :
geoip_hf = hf_geoip_city ;
geoip_local_hf = ( isdst ) ? hf_geoip_dst_city : hf_geoip_src_city ;
break ;
case GEOIP_ORG_EDITION_V6 :
geoip_hf = hf_geoip_org ;
geoip_local_hf = ( isdst ) ? hf_geoip_dst_org : hf_geoip_src_org ;
break ;
case GEOIP_ISP_EDITION_V6 :
geoip_hf = hf_geoip_isp ;
geoip_local_hf = ( isdst ) ? hf_geoip_dst_isp : hf_geoip_src_isp ;
break ;
case GEOIP_ASNUM_EDITION_V6 :
geoip_hf = hf_geoip_asnum ;
geoip_local_hf = ( isdst ) ? hf_geoip_dst_asnum : hf_geoip_src_asnum ;
break ;
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# endif /* DB_NUM_TYPES */
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case WS_LAT_FAKE_EDITION :
geoip_hf = hf_geoip_lat ;
geoip_local_hf = ( isdst ) ? hf_geoip_dst_lat : hf_geoip_src_lat ;
break ;
case WS_LON_FAKE_EDITION :
geoip_hf = hf_geoip_lon ;
geoip_local_hf = ( isdst ) ? hf_geoip_dst_lon : hf_geoip_src_lon ;
break ;
default :
continue ;
break ;
}
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if ( geoip_str ) {
proto_item * item ;
if ( db_type = = WS_LAT_FAKE_EDITION | | db_type = = WS_LON_FAKE_EDITION ) {
/* Convert latitude, longitude to double. Fix bug #5077 */
item = proto_tree_add_double_format_value ( geoip_info_tree , geoip_local_hf , tvb ,
offset , 16 , g_ascii_strtod ( geoip_str , NULL ) , " %s " , geoip_str ) ;
PROTO_ITEM_SET_GENERATED ( item ) ;
item = proto_tree_add_double_format_value ( geoip_info_tree , geoip_hf , tvb ,
offset , 16 , g_ascii_strtod ( geoip_str , NULL ) , " %s " , geoip_str ) ;
PROTO_ITEM_SET_GENERATED ( item ) ;
PROTO_ITEM_SET_HIDDEN ( item ) ;
} else {
item = proto_tree_add_string ( geoip_info_tree , geoip_local_hf , tvb ,
offset , 16 , geoip_str ) ;
PROTO_ITEM_SET_GENERATED ( item ) ;
item = proto_tree_add_string ( geoip_info_tree , geoip_hf , tvb ,
offset , 16 , geoip_str ) ;
PROTO_ITEM_SET_GENERATED ( item ) ;
PROTO_ITEM_SET_HIDDEN ( item ) ;
}
item_cnt + + ;
proto_item_append_text ( geoip_info_item , " %s%s " , plurality ( item_cnt , " " , " , " ) , geoip_str ) ;
}
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}
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if ( item_cnt = = 0 )
proto_item_append_text ( geoip_info_item , " Unknown " ) ;
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}
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static void
add_geoip_info ( proto_tree * tree , tvbuff_t * tvb , gint offset , const struct e_in6_addr * src , const struct e_in6_addr * dst )
{
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guint num_dbs ;
proto_item * geoip_info_item ;
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num_dbs = geoip_db_num_dbs ( ) ;
if ( num_dbs < 1 )
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return ;
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geoip_info_item = proto_tree_add_text ( tree , tvb , offset + IP6H_SRC , 16 , " Source GeoIP: " ) ;
PROTO_ITEM_SET_GENERATED ( geoip_info_item ) ;
add_geoip_info_entry ( geoip_info_item , tvb , offset + IP6H_SRC , src , 0 ) ;
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geoip_info_item = proto_tree_add_text ( tree , tvb , offset + IP6H_DST , 16 , " Destination GeoIP: " ) ;
PROTO_ITEM_SET_GENERATED ( geoip_info_item ) ;
add_geoip_info_entry ( geoip_info_item , tvb , offset + IP6H_DST , dst , 1 ) ;
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}
# endif /* HAVE_GEOIP_V6 */
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static void
ipv6_reassemble_init ( void )
{
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reassembly_table_init ( & ipv6_reassembly_table ,
& addresses_reassembly_table_functions ) ;
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}
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enum {
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IPv6_RT_HEADER_SOURCE_ROUTING = 0 ,
IPv6_RT_HEADER_NIMROD ,
IPv6_RT_HEADER_MobileIP ,
IPv6_RT_HEADER_RPL
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} ;
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/* Routing Header Types */
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static const value_string routing_header_type [ ] = {
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{ IPv6_RT_HEADER_SOURCE_ROUTING , " IPv6 Source Routing " } ,
{ IPv6_RT_HEADER_NIMROD , " Nimrod " } ,
{ IPv6_RT_HEADER_MobileIP , " Mobile IP " } ,
{ IPv6_RT_HEADER_RPL , " RPL " } ,
{ 0 , NULL }
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} ;
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static int
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dissect_routing6 ( tvbuff_t * tvb , int offset , proto_tree * tree , packet_info * pinfo ) {
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struct ip6_rthdr rt ;
guint len , seg_left ;
proto_tree * rthdr_tree ;
proto_item * ti ;
guint8 buf [ sizeof ( struct ip6_rthdr0 ) + sizeof ( struct e_in6_addr ) * 23 ] ;
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tvb_memcpy ( tvb , ( guint8 * ) & rt , offset , sizeof ( rt ) ) ;
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len = ( rt . ip6r_len + 1 ) < < 3 ;
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/* Assigning seg_left and the if (seg_left) {} blocks of code that follow,
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* along with any expert_add_info ( ) calls , all need to execute when
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* appropriate , regardless of whether the tree is NULL or not . */
if ( 1 ) {
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/* !!! specify length */
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ti = proto_tree_add_uint_format ( tree , hf_ipv6_routing_hdr_opt , tvb ,
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offset , len , rt . ip6r_type ,
" Routing Header, Type : %s (%u) " ,
val_to_str_const ( rt . ip6r_type , routing_header_type , " Unknown " ) ,
rt . ip6r_type ) ;
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rthdr_tree = proto_item_add_subtree ( ti , ett_ipv6 ) ;
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proto_tree_add_text ( rthdr_tree , tvb ,
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offset + ( int ) offsetof ( struct ip6_rthdr , ip6r_nxt ) , 1 ,
" Next header: %s (%u) " , ipprotostr ( rt . ip6r_nxt ) , rt . ip6r_nxt ) ;
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proto_tree_add_text ( rthdr_tree , tvb ,
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offset + ( int ) offsetof ( struct ip6_rthdr , ip6r_len ) , 1 ,
" Length: %u (%d bytes) " , rt . ip6r_len , len ) ;
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proto_tree_add_item ( rthdr_tree , hf_ipv6_routing_hdr_type , tvb ,
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offset + ( int ) offsetof ( struct ip6_rthdr , ip6r_type ) , 1 , ENC_BIG_ENDIAN ) ;
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proto_tree_add_item ( rthdr_tree , hf_ipv6_routing_hdr_left , tvb ,
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offset + ( int ) offsetof ( struct ip6_rthdr , ip6r_segleft ) , 1 , ENC_BIG_ENDIAN ) ;
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seg_left = tvb_get_guint8 ( tvb , offset + ( int ) offsetof ( struct ip6_rthdr , ip6r_segleft ) ) ;
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if ( rt . ip6r_type = = IPv6_RT_HEADER_SOURCE_ROUTING & & len < = sizeof ( buf ) ) {
struct e_in6_addr * a ;
int n ;
struct ip6_rthdr0 * rt0 ;
tvb_memcpy ( tvb , buf , offset , len ) ;
rt0 = ( struct ip6_rthdr0 * ) buf ;
for ( a = rt0 - > ip6r0_addr , n = 0 ;
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a < ( struct e_in6_addr * ) ( buf + len ) ; a + + , n + + ) {
proto_tree_add_item ( rthdr_tree , hf_ipv6_routing_hdr_addr , tvb ,
offset + ( int ) ( offsetof ( struct ip6_rthdr0 , ip6r0_addr )
+ n * sizeof ( struct e_in6_addr ) ) ,
( int ) sizeof ( struct e_in6_addr ) , ENC_NA ) ;
if ( seg_left )
TVB_SET_ADDRESS ( & pinfo - > dst , AT_IPv6 , tvb ,
offset + ( int ) offsetof ( struct ip6_rthdr0 , ip6r0_addr ) + n * ( int ) sizeof ( struct e_in6_addr ) , 16 ) ;
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}
}
if ( rt . ip6r_type = = IPv6_RT_HEADER_MobileIP ) {
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proto_tree_add_item ( rthdr_tree , hf_ipv6_mipv6_home_address , tvb ,
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offset + 8 , 16 , ENC_NA ) ;
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if ( seg_left )
Introduce, and start using, TVB_SET_ADDRESS() and TVB_SET_ADDRESS_HF(). They
are like the non-TVB versions except that they take a TVB and an offset
instead of (frequently) a pointer into the TVB.
Calling tvb_get_ptr() before modifying the rest of the fields should help fix
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=7960 (though I can't
reproduce that problem).
Replace a bunch of calls like:
SET_ADDRESS(..., AT_XXX, length, tvb_get_ptr(tvb, offset, length));
with:
TVB_SET_ADDRESS(..., AT_XXX, tvb, offset, length);
svn path=/trunk/; revision=46324
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TVB_SET_ADDRESS ( & pinfo - > dst , AT_IPv6 , tvb , offset + 8 , 16 ) ;
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}
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if ( rt . ip6r_type = = IPv6_RT_HEADER_RPL ) {
guint8 cmprI ;
guint8 cmprE ;
guint8 pad ;
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guint32 reserved ;
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gint segments ;
/* IPv6 destination address used for elided bytes */
struct e_in6_addr dstAddr ;
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/* IPv6 source address used for strict checking */
struct e_in6_addr srcAddr ;
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offset + = 4 ;
memcpy ( ( guint8 * ) & dstAddr , ( guint8 * ) pinfo - > dst . data , pinfo - > dst . len ) ;
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memcpy ( ( guint8 * ) & srcAddr , ( guint8 * ) pinfo - > src . data , pinfo - > src . len ) ;
/* from RFC6554: Multicast addresses MUST NOT appear in the IPv6 Destination Address field */
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if ( g_ipv6_rpl_srh_strict_rfc_checking & & in6_is_addr_multicast ( & dstAddr ) ) {
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expert_add_info ( pinfo , ti , & ei_ipv6_dst_addr_not_multicast ) ;
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}
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proto_tree_add_item ( rthdr_tree , hf_ipv6_routing_hdr_rpl_cmprI , tvb , offset , 4 , ENC_BIG_ENDIAN ) ;
proto_tree_add_item ( rthdr_tree , hf_ipv6_routing_hdr_rpl_cmprE , tvb , offset , 4 , ENC_BIG_ENDIAN ) ;
proto_tree_add_item ( rthdr_tree , hf_ipv6_routing_hdr_rpl_pad , tvb , offset , 4 , ENC_BIG_ENDIAN ) ;
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cmprI = tvb_get_guint8 ( tvb , offset ) & 0xF0 ;
cmprE = tvb_get_guint8 ( tvb , offset ) & 0x0F ;
pad = tvb_get_guint8 ( tvb , offset + 1 ) & 0xF0 ;
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/* Shift bytes over */
cmprI > > = 4 ;
pad > > = 4 ;
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/* from RFC6554: when CmprI and CmprE are both 0, Pad MUST carry a value of 0 */
if ( g_ipv6_rpl_srh_strict_rfc_checking & & ( cmprI = = 0 & & cmprE = = 0 & & pad ! = 0 ) ) {
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expert_add_info_format ( pinfo , ti , & ei_ipv6_cmpri_cmpre_pad , " When cmprI equals 0 and cmprE equals 0, pad MUST equal 0 but instead was %d " , pad ) ;
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}
proto_tree_add_item ( rthdr_tree , hf_ipv6_routing_hdr_rpl_reserved , tvb , offset , 4 , ENC_BIG_ENDIAN ) ;
reserved = tvb_get_bits32 ( tvb , ( ( offset + 1 ) * 8 ) + 4 , 20 , ENC_BIG_ENDIAN ) ;
if ( g_ipv6_rpl_srh_strict_rfc_checking & & reserved ! = 0 ) {
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expert_add_info_format ( pinfo , ti , & ei_ipv6_routing_hdr_rpl_reserved , " Reserved field must equal 0 but instead was %d " , reserved ) ;
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}
/* from RFC6554:
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n = ( ( ( Hdr Ext Len * 8 ) - Pad - ( 16 - CmprE ) ) / ( 16 - CmprI ) ) + 1 */
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segments = ( ( ( rt . ip6r_len * 8 ) - pad - ( 16 - cmprE ) ) / ( 16 - cmprI ) ) + 1 ;
ti = proto_tree_add_int ( rthdr_tree , hf_ipv6_routing_hdr_rpl_segments , tvb , offset , 2 , segments ) ;
PROTO_ITEM_SET_GENERATED ( ti ) ;
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if ( segments < 0 ) {
/* This error should always be reported */
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expert_add_info_format ( pinfo , ti , & ei_ipv6_routing_hdr_rpl_segments_ge0 , " Calculated total segments must be greater than or equal to 0, instead was %d " , segments ) ;
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} else {
2011-10-05 22:27:51 +00:00
2012-05-15 19:11:08 +00:00
offset + = 4 ;
/* We use cmprI for internal (e.g.: not last) address for how many bytes to elide, so actual bytes present = 16-CmprI */
while ( segments > 1 ) {
struct e_in6_addr addr ;
proto_tree_add_item ( rthdr_tree , hf_ipv6_routing_hdr_rpl_addr , tvb , offset , ( 16 - cmprI ) , ENC_NA ) ;
/* Display Full Address */
memcpy ( ( guint8 * ) & addr , ( guint8 * ) & dstAddr , sizeof ( dstAddr ) ) ;
tvb_memcpy ( tvb , ( guint8 * ) & addr + cmprI , offset , ( 16 - cmprI ) ) ;
ti = proto_tree_add_ipv6 ( rthdr_tree , hf_ipv6_routing_hdr_rpl_fulladdr , tvb , offset , ( 16 - cmprI ) , ( guint8 * ) & addr ) ;
PROTO_ITEM_SET_GENERATED ( ti ) ;
offset + = ( 16 - cmprI ) ;
segments - - ;
2012-05-31 07:25:11 +00:00
if ( g_ipv6_rpl_srh_strict_rfc_checking ) {
/* from RFC6554: */
/* The SRH MUST NOT specify a path that visits a node more than once. */
/* To do this, we will just check the current 'addr' against the next addresses */
gint tempSegments ;
gint tempOffset ;
tempSegments = segments ; /* Has already been decremented above */
tempOffset = offset ; /* Has already been moved */
while ( tempSegments > 1 ) {
struct e_in6_addr tempAddr ;
memcpy ( ( guint8 * ) & tempAddr , ( guint8 * ) & dstAddr , sizeof ( dstAddr ) ) ;
tvb_memcpy ( tvb , ( guint8 * ) & tempAddr + cmprI , tempOffset , ( 16 - cmprI ) ) ;
/* Compare the addresses */
if ( memcmp ( addr . bytes , tempAddr . bytes , 16 ) = = 0 ) {
/* Found a later address that is the same */
2013-06-08 02:06:24 +00:00
expert_add_info ( pinfo , ti , & ei_ipv6_src_route_list_mult_inst_same_addr ) ;
2012-05-31 07:25:11 +00:00
break ;
}
tempOffset + = ( 16 - cmprI ) ;
tempSegments - - ;
}
if ( tempSegments = = 1 ) {
struct e_in6_addr tempAddr ;
memcpy ( ( guint8 * ) & tempAddr , ( guint8 * ) & dstAddr , sizeof ( dstAddr ) ) ;
tvb_memcpy ( tvb , ( guint8 * ) & tempAddr + cmprE , tempOffset , ( 16 - cmprE ) ) ;
/* Compare the addresses */
if ( memcmp ( addr . bytes , tempAddr . bytes , 16 ) = = 0 ) {
/* Found a later address that is the same */
2013-06-08 02:06:24 +00:00
expert_add_info ( pinfo , ti , & ei_ipv6_src_route_list_mult_inst_same_addr ) ;
2012-05-31 07:25:11 +00:00
}
}
/* IPv6 Source and Destination addresses of the encapsulating datagram (MUST) not appear in the SRH*/
if ( memcmp ( addr . bytes , srcAddr . bytes , 16 ) = = 0 ) {
2013-06-08 02:06:24 +00:00
expert_add_info ( pinfo , ti , & ei_ipv6_src_route_list_src_addr ) ;
2012-05-31 07:25:11 +00:00
}
if ( memcmp ( addr . bytes , dstAddr . bytes , 16 ) = = 0 ) {
2013-06-08 02:06:24 +00:00
expert_add_info ( pinfo , ti , & ei_ipv6_src_route_list_dst_addr ) ;
2012-05-31 07:25:11 +00:00
}
/* Multicast addresses MUST NOT appear in the in SRH */
2013-10-16 17:19:59 +00:00
if ( in6_is_addr_multicast ( & addr ) ) {
2013-06-08 02:06:24 +00:00
expert_add_info ( pinfo , ti , & ei_ipv6_src_route_list_multicast_addr ) ;
2012-05-31 07:25:11 +00:00
}
}
2012-05-15 19:11:08 +00:00
}
/* We use cmprE for last address for how many bytes to elide, so actual bytes present = 16-CmprE */
if ( segments = = 1 ) {
struct e_in6_addr addr ;
proto_tree_add_item ( rthdr_tree , hf_ipv6_routing_hdr_rpl_addr , tvb , offset , ( 16 - cmprI ) , ENC_NA ) ;
/* Display Full Address */
memcpy ( ( guint8 * ) & addr , ( guint8 * ) & dstAddr , sizeof ( dstAddr ) ) ;
tvb_memcpy ( tvb , ( guint8 * ) & addr + cmprE , offset , ( 16 - cmprE ) ) ;
ti = proto_tree_add_ipv6 ( rthdr_tree , hf_ipv6_routing_hdr_rpl_fulladdr , tvb , offset , ( 16 - cmprE ) , ( guint8 * ) & addr ) ;
PROTO_ITEM_SET_GENERATED ( ti ) ;
/* offset += (16-cmprE); */
2012-05-31 07:25:11 +00:00
if ( g_ipv6_rpl_srh_strict_rfc_checking ) {
/* IPv6 Source and Destination addresses of the encapsulating datagram (MUST) not appear in the SRH*/
if ( memcmp ( addr . bytes , srcAddr . bytes , 16 ) = = 0 ) {
2013-06-08 02:06:24 +00:00
expert_add_info ( pinfo , ti , & ei_ipv6_src_route_list_src_addr ) ;
2012-05-31 07:25:11 +00:00
}
if ( memcmp ( addr . bytes , dstAddr . bytes , 16 ) = = 0 ) {
2013-06-08 02:06:24 +00:00
expert_add_info ( pinfo , ti , & ei_ipv6_src_route_list_dst_addr ) ;
2012-05-31 07:25:11 +00:00
}
/* Multicast addresses MUST NOT appear in the in SRH */
2013-10-16 17:19:59 +00:00
if ( in6_is_addr_multicast ( & addr ) ) {
2013-06-08 02:06:24 +00:00
expert_add_info ( pinfo , ti , & ei_ipv6_src_route_list_multicast_addr ) ;
2012-05-31 07:25:11 +00:00
}
}
2012-05-15 19:11:08 +00:00
}
}
}
1999-10-12 23:12:06 +00:00
}
return len ;
1999-03-28 18:32:03 +00:00
}
static int
2001-06-26 17:31:36 +00:00
dissect_frag6 ( tvbuff_t * tvb , int offset , packet_info * pinfo , proto_tree * tree ,
2013-12-12 20:39:11 +00:00
guint16 * offlg , guint32 * ident ) {
struct ip6_frag frag ;
int len ;
proto_item * ti ;
proto_tree * rthdr_tree ;
1999-10-12 23:12:06 +00:00
2001-04-23 03:37:31 +00:00
tvb_memcpy ( tvb , ( guint8 * ) & frag , offset , sizeof ( frag ) ) ;
1999-10-12 23:12:06 +00:00
len = sizeof ( frag ) ;
2002-08-02 23:36:07 +00:00
frag . ip6f_offlg = g_ntohs ( frag . ip6f_offlg ) ;
2004-01-21 08:39:29 +00:00
frag . ip6f_ident = g_ntohl ( frag . ip6f_ident ) ;
2001-06-08 08:30:42 +00:00
* offlg = frag . ip6f_offlg ;
* ident = frag . ip6f_ident ;
2013-06-14 01:02:11 +00:00
col_add_fstr ( pinfo - > cinfo , COL_INFO ,
2013-12-12 20:39:11 +00:00
" IPv6 fragment (nxt=%s (%u) off=%u id=0x%x) " ,
ipprotostr ( frag . ip6f_nxt ) , frag . ip6f_nxt ,
( frag . ip6f_offlg & IP6F_OFF_MASK ) > > IP6F_OFF_SHIFT , frag . ip6f_ident ) ;
2013-06-14 01:02:11 +00:00
2000-08-08 21:49:13 +00:00
if ( tree ) {
2013-12-12 20:39:11 +00:00
ti = proto_tree_add_text ( tree , tvb , offset , len ,
" Fragmentation Header " ) ;
rthdr_tree = proto_item_add_subtree ( ti , ett_ipv6 ) ;
proto_tree_add_item ( rthdr_tree , hf_ipv6_frag_nxt , tvb ,
offset + ( int ) offsetof ( struct ip6_frag , ip6f_nxt ) , 1 ,
ENC_BIG_ENDIAN ) ;
proto_tree_add_item ( rthdr_tree , hf_ipv6_frag_reserved , tvb ,
offset + ( int ) offsetof ( struct ip6_frag , ip6f_reserved ) , 1 ,
ENC_BIG_ENDIAN ) ;
proto_tree_add_item ( rthdr_tree , hf_ipv6_frag_offset , tvb ,
offset + ( int ) offsetof ( struct ip6_frag , ip6f_offlg ) , 2 , ENC_BIG_ENDIAN ) ;
proto_tree_add_item ( rthdr_tree , hf_ipv6_frag_reserved_bits , tvb ,
offset + ( int ) offsetof ( struct ip6_frag , ip6f_offlg ) , 2 , ENC_BIG_ENDIAN ) ;
proto_tree_add_item ( rthdr_tree , hf_ipv6_frag_more , tvb ,
offset + ( int ) offsetof ( struct ip6_frag , ip6f_offlg ) , 2 , ENC_BIG_ENDIAN ) ;
proto_tree_add_item ( rthdr_tree , hf_ipv6_frag_id , tvb ,
offset + ( int ) offsetof ( struct ip6_frag , ip6f_ident ) , 4 , ENC_BIG_ENDIAN ) ;
2000-08-08 21:49:13 +00:00
}
1999-10-12 23:12:06 +00:00
return len ;
1999-03-28 18:32:03 +00:00
}
2012-06-19 20:20:18 +00:00
2001-06-26 17:31:36 +00:00
static const value_string rtalertvals [ ] = {
{ IP6OPT_RTALERT_MLD , " MLD " } ,
{ IP6OPT_RTALERT_RSVP , " RSVP " } ,
2012-03-12 23:13:03 +00:00
{ IP6OPT_RTALERT_ACTNET , " Active Network " } ,
2007-05-08 22:25:03 +00:00
{ 0 , NULL }
2001-06-26 17:31:36 +00:00
} ;
2001-01-23 02:49:55 +00:00
2008-11-07 00:45:22 +00:00
static int
dissect_unknown_option ( tvbuff_t * tvb , int offset , proto_tree * tree )
{
2013-12-12 20:39:11 +00:00
int len ;
2008-11-07 00:45:22 +00:00
proto_tree * unkopt_tree ;
2012-05-08 17:34:46 +00:00
proto_item * ti , * ti_len ;
2008-11-07 00:45:22 +00:00
2012-05-08 17:34:46 +00:00
len = ( tvb_get_guint8 ( tvb , offset + 1 ) + 1 ) < < 3 ;
2008-11-07 00:45:22 +00:00
if ( tree ) {
2011-12-21 14:18:28 +00:00
/* !!! specify length */
ti = proto_tree_add_item ( tree , hf_ipv6_unk_hdr , tvb , offset , len , ENC_NA ) ;
2008-11-07 00:45:22 +00:00
2011-12-21 14:18:28 +00:00
unkopt_tree = proto_item_add_subtree ( ti , ett_ipv6 ) ;
2008-11-07 00:45:22 +00:00
2012-05-08 17:34:46 +00:00
proto_tree_add_item ( unkopt_tree , hf_ipv6_nxt , tvb , offset , 1 , ENC_NA ) ;
offset + = 1 ;
2008-11-07 00:45:22 +00:00
2012-05-08 17:34:46 +00:00
ti_len = proto_tree_add_item ( unkopt_tree , hf_ipv6_opt_length , tvb , offset , 1 , ENC_NA ) ;
proto_item_append_text ( ti_len , " (%d byte%s) " , len , plurality ( len , " " , " s " ) ) ;
/* offset += 1; */
2008-11-07 00:45:22 +00:00
}
return len ;
}
2001-06-26 17:31:36 +00:00
static int
2013-11-23 19:16:05 +00:00
dissect_opts ( tvbuff_t * tvb , int offset , proto_tree * tree , packet_info * pinfo , const int hf_option_item , ws_ip * iph )
2001-06-26 17:31:36 +00:00
{
2013-12-12 20:39:11 +00:00
int len ;
int offset_end ;
2012-03-12 23:13:03 +00:00
proto_tree * dstopt_tree , * opt_tree ;
proto_item * ti , * ti_len , * ti_opt , * ti_opt_len ;
2013-12-12 20:39:11 +00:00
guint8 opt_len , opt_type ;
1999-03-28 18:32:03 +00:00
2012-03-12 23:13:03 +00:00
len = ( tvb_get_guint8 ( tvb , offset + 1 ) + 1 ) < < 3 ;
offset_end = offset + len ;
2001-01-23 02:49:55 +00:00
2001-06-26 17:31:36 +00:00
if ( tree ) {
2011-12-21 14:18:28 +00:00
/* !!! specify length */
ti = proto_tree_add_item ( tree , hf_option_item , tvb , offset , len , ENC_NA ) ;
dstopt_tree = proto_item_add_subtree ( ti , ett_ipv6 ) ;
2012-03-12 23:13:03 +00:00
proto_tree_add_item ( dstopt_tree , hf_ipv6_nxt , tvb , offset , 1 , ENC_NA ) ;
offset + = 1 ;
2011-12-21 14:18:28 +00:00
2012-03-12 23:13:03 +00:00
ti_len = proto_tree_add_item ( dstopt_tree , hf_ipv6_opt_length , tvb , offset , 1 , ENC_NA ) ;
proto_item_append_text ( ti_len , " (%d byte%s) " , len , plurality ( len , " " , " s " ) ) ;
offset + = 1 ;
2011-12-21 14:18:28 +00:00
2012-03-12 23:13:03 +00:00
while ( offset_end > offset ) {
/* there are more options */
2011-12-21 14:18:28 +00:00
2012-03-12 23:13:03 +00:00
/* IPv6 Option */
2012-10-31 08:35:20 +00:00
ti_opt = proto_tree_add_item ( dstopt_tree , hf_ipv6_opt , tvb , offset , 1 , ENC_NA ) ;
2012-03-12 23:13:03 +00:00
opt_tree = proto_item_add_subtree ( ti_opt , ett_ipv6_opt ) ;
2011-12-21 14:18:28 +00:00
2012-03-12 23:13:03 +00:00
/* Option type */
proto_tree_add_item ( opt_tree , hf_ipv6_opt_type , tvb , offset , 1 , ENC_BIG_ENDIAN ) ;
opt_type = tvb_get_guint8 ( tvb , offset ) ;
/* Add option name to option root label */
proto_item_append_text ( ti_opt , " (%s " , val_to_str ( opt_type , ipv6_opt_vals , " Unknown %d " ) ) ;
/* The Pad1 option is a special case, and contains no data. */
if ( opt_type = = IP6OPT_PAD1 ) {
proto_tree_add_item ( opt_tree , hf_ipv6_opt_pad1 , tvb , offset , 1 , ENC_NA ) ;
offset + = 1 ;
2012-03-18 11:54:23 +00:00
proto_item_append_text ( ti_opt , " ) " ) ;
2012-03-12 23:13:03 +00:00
continue ;
}
2012-10-31 08:35:20 +00:00
offset + = 1 ;
2012-03-12 23:13:03 +00:00
/* Option length */
ti_opt_len = proto_tree_add_item ( opt_tree , hf_ipv6_opt_length , tvb , offset , 1 , ENC_BIG_ENDIAN ) ;
opt_len = tvb_get_guint8 ( tvb , offset ) ;
proto_item_set_len ( ti_opt , opt_len + 2 ) ;
offset + = 1 ;
switch ( opt_type ) {
2011-12-21 14:18:28 +00:00
case IP6OPT_PADN :
/* RFC 2460 states :
* " The PadN option is used to insert two or more octets of
* padding into the Options area of a header . For N octets of
* padding , the Opt Data Len field contains the value N - 2 , and
* the Option Data consists of N - 2 zero - valued octets . "
*/
2012-03-12 23:13:03 +00:00
proto_tree_add_item ( opt_tree , hf_ipv6_opt_padn , tvb ,
2013-12-12 20:39:11 +00:00
offset , opt_len , ENC_NA ) ;
2012-03-12 23:13:03 +00:00
offset + = opt_len ;
2011-12-21 14:18:28 +00:00
break ;
2012-03-27 13:42:54 +00:00
case IP6OPT_TEL :
if ( opt_len ! = 1 ) {
2013-09-09 00:44:09 +00:00
expert_add_info_format ( pinfo , ti_opt_len , & ei_ipv6_opt_tel_invalid_len ,
2013-12-12 20:39:11 +00:00
" Tunnel Encapsulation Limit: Invalid length (%u bytes) " , opt_len ) ;
2012-03-27 13:42:54 +00:00
}
proto_tree_add_item ( opt_tree , hf_ipv6_opt_tel , tvb ,
2013-12-12 20:39:11 +00:00
offset , 1 , ENC_BIG_ENDIAN ) ;
2012-03-27 13:42:54 +00:00
offset + = 1 ;
break ;
2011-12-21 14:18:28 +00:00
case IP6OPT_JUMBO :
2012-03-12 23:13:03 +00:00
if ( opt_len ! = 4 ) {
2013-09-09 00:44:09 +00:00
expert_add_info_format ( pinfo , ti_opt_len , & ei_ipv6_opt_jumbo_invalid_len ,
2013-12-12 20:39:11 +00:00
" Jumbo payload: Invalid length (%u bytes) " , opt_len ) ;
2011-12-21 14:18:28 +00:00
}
2012-03-12 23:13:03 +00:00
proto_tree_add_item ( opt_tree , hf_ipv6_opt_jumbo , tvb ,
2013-12-12 20:39:11 +00:00
offset , 4 , ENC_BIG_ENDIAN ) ;
2012-03-27 13:42:54 +00:00
offset + = 4 ;
2011-12-21 14:18:28 +00:00
break ;
case IP6OPT_RTALERT :
2013-12-12 20:39:11 +00:00
{
2012-03-12 23:13:03 +00:00
if ( opt_len ! = 2 ) {
2013-09-09 00:44:09 +00:00
expert_add_info_format ( pinfo , ti_opt_len , & ei_ipv6_opt_rtalert_invalid_len ,
2013-12-12 20:39:11 +00:00
" Router alert: Invalid Length (%u bytes) " ,
opt_len + 2 ) ;
2011-12-21 14:18:28 +00:00
}
2012-03-12 23:13:03 +00:00
proto_tree_add_item ( opt_tree , hf_ipv6_opt_rtalert , tvb ,
2013-12-12 20:39:11 +00:00
offset , 2 , ENC_BIG_ENDIAN ) ;
2012-03-27 13:42:54 +00:00
offset + = 2 ;
2011-12-21 14:18:28 +00:00
break ;
2013-12-12 20:39:11 +00:00
}
2011-12-21 14:18:28 +00:00
case IP6OPT_HOME_ADDRESS :
2012-03-12 23:13:03 +00:00
if ( opt_len ! = 16 ) {
2013-09-09 00:44:09 +00:00
expert_add_info_format ( pinfo , ti_opt_len , & ei_ipv6_mipv6_home_address_invalid_len ,
2013-12-12 20:39:11 +00:00
" Home Address: Invalid length (%u bytes) " , opt_len ) ;
2012-03-12 23:13:03 +00:00
}
proto_tree_add_item ( opt_tree , hf_ipv6_mipv6_home_address , tvb ,
offset , 16 , ENC_NA ) ;
Introduce, and start using, TVB_SET_ADDRESS() and TVB_SET_ADDRESS_HF(). They
are like the non-TVB versions except that they take a TVB and an offset
instead of (frequently) a pointer into the TVB.
Calling tvb_get_ptr() before modifying the rest of the fields should help fix
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=7960 (though I can't
reproduce that problem).
Replace a bunch of calls like:
SET_ADDRESS(..., AT_XXX, length, tvb_get_ptr(tvb, offset, length));
with:
TVB_SET_ADDRESS(..., AT_XXX, tvb, offset, length);
svn path=/trunk/; revision=46324
2012-12-02 04:49:13 +00:00
TVB_SET_ADDRESS ( & pinfo - > src , AT_IPv6 , tvb , offset , 16 ) ;
2012-03-27 13:42:54 +00:00
offset + = 16 ;
2011-12-21 14:18:28 +00:00
break ;
2012-03-27 13:42:54 +00:00
case IP6OPT_CALIPSO :
2013-12-12 20:39:11 +00:00
{
2012-03-27 13:42:54 +00:00
guint8 cmpt_length ;
proto_tree_add_item ( opt_tree , hf_ipv6_opt_calipso_doi , tvb ,
2013-12-12 20:39:11 +00:00
offset , 4 , ENC_BIG_ENDIAN ) ;
2012-03-27 13:42:54 +00:00
offset + = 4 ;
proto_tree_add_item ( opt_tree , hf_ipv6_opt_calipso_cmpt_length , tvb ,
2013-12-12 20:39:11 +00:00
offset , 1 , ENC_BIG_ENDIAN ) ;
2012-03-27 13:42:54 +00:00
cmpt_length = tvb_get_guint8 ( tvb , offset ) ;
offset + = 1 ;
proto_tree_add_item ( opt_tree , hf_ipv6_opt_calipso_sens_level , tvb ,
2013-12-12 20:39:11 +00:00
offset , 1 , ENC_BIG_ENDIAN ) ;
2012-03-27 13:42:54 +00:00
offset + = 1 ;
/* Need to add Check Checksum..*/
proto_tree_add_item ( opt_tree , hf_ipv6_opt_calipso_checksum , tvb ,
2013-12-12 20:39:11 +00:00
offset , 2 , ENC_BIG_ENDIAN ) ;
2012-03-27 13:42:54 +00:00
offset + = 2 ;
proto_tree_add_item ( opt_tree , hf_ipv6_opt_calipso_cmpt_bitmap , tvb ,
2013-12-12 20:39:11 +00:00
offset , cmpt_length , ENC_NA ) ;
2012-03-27 13:42:54 +00:00
offset + = cmpt_length ;
break ;
2013-12-12 20:39:11 +00:00
}
2012-03-20 08:51:05 +00:00
case IP6OPT_QUICKSTART :
2013-12-12 20:39:11 +00:00
{
2012-03-20 08:51:05 +00:00
guint8 command = tvb_get_guint8 ( tvb , offset ) ;
guint8 function = command > > 4 ;
guint8 rate = command & QS_RATE_MASK ;
guint8 ttl_diff ;
proto_tree_add_item ( opt_tree , hf_ipv6_opt_qs_func , tvb , offset , 1 , ENC_NA ) ;
if ( function = = QS_RATE_REQUEST ) {
2013-12-12 20:39:11 +00:00
proto_tree_add_item ( opt_tree , hf_ipv6_opt_qs_rate , tvb , offset , 1 , ENC_NA ) ;
offset + = 1 ;
proto_tree_add_item ( opt_tree , hf_ipv6_opt_qs_ttl , tvb , offset , 1 , ENC_NA ) ;
ttl_diff = ( iph - > ip_ttl - tvb_get_guint8 ( tvb , offset ) % 256 ) ;
offset + = 1 ;
ti = proto_tree_add_uint_format_value ( opt_tree , hf_ipv6_opt_qs_ttl_diff ,
tvb , offset , 1 , ttl_diff ,
" %u " , ttl_diff ) ;
PROTO_ITEM_SET_GENERATED ( ti ) ;
proto_item_append_text ( ti_opt , " , %s, QS TTL %u, QS TTL diff %u " ,
val_to_str_ext ( rate , & qs_rate_vals_ext , " Unknown (%u) " ) ,
tvb_get_guint8 ( tvb , offset ) , ttl_diff ) ;
offset + = 1 ;
proto_tree_add_item ( opt_tree , hf_ipv6_opt_qs_nonce , tvb , offset , 4 , ENC_NA ) ;
proto_tree_add_item ( opt_tree , hf_ipv6_opt_qs_reserved , tvb , offset , 4 , ENC_NA ) ;
offset + = 4 ;
2012-03-20 08:51:05 +00:00
} else if ( function = = QS_RATE_REPORT ) {
2013-12-12 20:39:11 +00:00
proto_tree_add_item ( opt_tree , hf_ipv6_opt_qs_rate , tvb , offset , 1 , ENC_NA ) ;
offset + = 1 ;
proto_item_append_text ( ti_opt , " , %s " ,
val_to_str_ext ( rate , & qs_rate_vals_ext , " Unknown (%u) " ) ) ;
proto_tree_add_item ( opt_tree , hf_ipv6_opt_qs_unused , tvb , offset , 1 , ENC_NA ) ;
offset + = 1 ;
proto_tree_add_item ( opt_tree , hf_ipv6_opt_qs_nonce , tvb , offset , 4 , ENC_NA ) ;
proto_tree_add_item ( opt_tree , hf_ipv6_opt_qs_reserved , tvb , offset , 4 , ENC_NA ) ;
offset + = 4 ;
2012-03-20 08:51:05 +00:00
}
2013-12-12 20:39:11 +00:00
}
break ;
2012-03-27 13:50:50 +00:00
case IP6OPT_RPL :
2013-12-12 20:39:11 +00:00
{
2012-03-27 13:50:50 +00:00
proto_tree * flag_tree ;
proto_item * ti_flag ;
ti_flag = proto_tree_add_item ( opt_tree , hf_ipv6_opt_rpl_flag , tvb , offset , 1 , ENC_BIG_ENDIAN ) ;
flag_tree = proto_item_add_subtree ( ti_flag , ett_ipv6_opt_flag ) ;
proto_tree_add_item ( flag_tree , hf_ipv6_opt_rpl_flag_o , tvb , offset , 1 , ENC_BIG_ENDIAN ) ;
proto_tree_add_item ( flag_tree , hf_ipv6_opt_rpl_flag_r , tvb , offset , 1 , ENC_BIG_ENDIAN ) ;
proto_tree_add_item ( flag_tree , hf_ipv6_opt_rpl_flag_f , tvb , offset , 1 , ENC_BIG_ENDIAN ) ;
proto_tree_add_item ( flag_tree , hf_ipv6_opt_rpl_flag_rsv , tvb , offset , 1 , ENC_BIG_ENDIAN ) ;
offset + = 1 ;
proto_tree_add_item ( flag_tree , hf_ipv6_opt_rpl_instance_id , tvb , offset , 1 , ENC_BIG_ENDIAN ) ;
offset + = 1 ;
proto_tree_add_item ( flag_tree , hf_ipv6_opt_rpl_senderrank , tvb , offset , 2 , ENC_BIG_ENDIAN ) ;
offset + = 2 ;
/* TODO: Add dissector of sub TLV */
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}
break ;
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case IP6OPT_EXP_1E :
case IP6OPT_EXP_3E :
case IP6OPT_EXP_5E :
case IP6OPT_EXP_7E :
case IP6OPT_EXP_9E :
case IP6OPT_EXP_BE :
case IP6OPT_EXP_DE :
case IP6OPT_EXP_FE :
proto_tree_add_item ( opt_tree , hf_ipv6_opt_experimental , tvb ,
offset , opt_len , ENC_NA ) ;
offset + = opt_len ;
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break ;
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default :
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proto_tree_add_item ( opt_tree , hf_ipv6_opt_unknown , tvb ,
offset , opt_len , ENC_NA ) ;
offset + = opt_len ;
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break ;
}
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/* Close the ) to option root label */
proto_item_append_text ( ti_opt , " ) " ) ;
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}
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}
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return len ;
}
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static int
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dissect_hopopts ( tvbuff_t * tvb , int offset , proto_tree * tree , packet_info * pinfo , ws_ip * iph )
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{
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return dissect_opts ( tvb , offset , tree , pinfo , hf_ipv6_hop_opt , iph ) ;
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}
static int
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dissect_dstopts ( tvbuff_t * tvb , int offset , proto_tree * tree , packet_info * pinfo , ws_ip * iph )
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{
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return dissect_opts ( tvb , offset , tree , pinfo , hf_ipv6_dst_opt , iph ) ;
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}
1998-09-16 02:39:15 +00:00
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/* START SHIM6 PART */
static guint16 shim_checksum ( const guint8 * ptr , int len )
{
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vec_t cksum_vec [ 1 ] ;
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cksum_vec [ 0 ] . ptr = ptr ;
cksum_vec [ 0 ] . len = len ;
return in_cksum ( & cksum_vec [ 0 ] , 1 ) ;
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}
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static int
dissect_shim_hex ( tvbuff_t * tvb , int offset , int len , const char * itemname , guint8 bitmask , proto_tree * tree )
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{
proto_item * ti ;
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int count ;
gint p ;
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p = offset ;
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ti = proto_tree_add_text ( tree , tvb , offset , len , " %s " , itemname ) ;
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proto_item_append_text ( ti , " 0x%02x " , tvb_get_guint8 ( tvb , p ) & bitmask ) ;
for ( count = 1 ; count < len ; count + + )
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proto_item_append_text ( ti , " %02x " , tvb_get_guint8 ( tvb , p + count ) ) ;
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return len ;
}
static const value_string shimoptvals [ ] = {
{ SHIM6_OPT_RESPVAL , " Responder Validator Option " } ,
{ SHIM6_OPT_LOCLIST , " Locator List Option " } ,
{ SHIM6_OPT_LOCPREF , " Locator Preferences Option " } ,
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{ SHIM6_OPT_CGAPDM , " CGA Parameter Data Structure Option " } ,
{ SHIM6_OPT_CGASIG , " CGA Signature Option " } ,
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{ SHIM6_OPT_ULIDPAIR , " ULID Pair Option " } ,
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{ SHIM6_OPT_FII , " Forked Instance Identifier Option " } ,
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{ 0 , NULL }
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} ;
static const value_string shimverifmethods [ ] = {
{ SHIM6_VERIF_HBA , " HBA " } ,
{ SHIM6_VERIF_CGA , " CGA " } ,
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{ 0 , NULL }
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} ;
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static const value_string shimflags [ ] _U_ = {
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{ SHIM6_FLAG_BROKEN , " BROKEN " } ,
{ SHIM6_FLAG_TEMPORARY , " TEMPORARY " } ,
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{ 0 , NULL }
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} ;
static const value_string shimreapstates [ ] = {
{ SHIM6_REAP_OPERATIONAL , " Operational " } ,
{ SHIM6_REAP_EXPLORING , " Exploring " } ,
{ SHIM6_REAP_INBOUNDOK , " InboundOK " } ,
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{ 0 , NULL }
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} ;
static const value_string shim6_protocol [ ] = {
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{ 0 , " SHIM6 " } ,
{ 1 , " HIP " } ,
{ 0 , NULL }
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} ;
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static void
dissect_shim6_opt_loclist ( proto_tree * opt_tree , tvbuff_t * tvb , gint * offset )
{
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proto_item * it ;
proto_tree * subtree ;
guint count ;
guint optlen ;
int p = * offset ;
proto_tree_add_item ( opt_tree , hf_ipv6_shim6_opt_loclist , tvb , p , 4 , ENC_BIG_ENDIAN ) ;
p + = 4 ;
optlen = tvb_get_guint8 ( tvb , p ) ;
proto_tree_add_item ( opt_tree , hf_ipv6_shim6_opt_locnum , tvb , p , 1 , ENC_BIG_ENDIAN ) ;
p + + ;
/* Verification Methods */
it = proto_tree_add_text ( opt_tree , tvb , p , optlen ,
" Locator Verification Methods " ) ;
subtree = proto_item_add_subtree ( it , ett_ipv6_shim6_verif_methods ) ;
for ( count = 0 ; count < optlen ; count + + )
proto_tree_add_item ( subtree , hf_ipv6_shim6_opt_loc_verif_methods , tvb ,
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p + count , 1 , ENC_BIG_ENDIAN ) ;
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p + = optlen ;
/* Padding, included in length field */
if ( ( 7 - optlen % 8 ) > 0 ) {
proto_tree_add_text ( opt_tree , tvb , p , ( 7 - optlen % 8 ) , " Padding " ) ;
p + = ( 7 - optlen % 8 ) ;
}
/* Locators */
it = proto_tree_add_text ( opt_tree , tvb , p , 16 * optlen , " Locators " ) ;
subtree = proto_item_add_subtree ( it , ett_ipv6_shim6_locators ) ;
for ( count = 0 ; count < optlen ; count + + ) {
proto_tree_add_item ( subtree , hf_ipv6_shim6_locator , tvb , p , 16 , ENC_NA ) ;
p + = 16 ;
}
* offset = p ;
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}
static void
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dissect_shim6_opt_loc_pref ( proto_tree * opt_tree , tvbuff_t * tvb , gint * offset , gint len , packet_info * pinfo )
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{
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proto_tree * subtree ;
proto_item * it ;
gint p ;
gint optlen ;
gint count ;
p = * offset ;
proto_tree_add_item ( opt_tree , hf_ipv6_shim6_opt_loclist , tvb , p , 4 , ENC_BIG_ENDIAN ) ;
p + = 4 ;
optlen = tvb_get_guint8 ( tvb , p ) ;
proto_tree_add_item ( opt_tree , hf_ipv6_shim6_opt_elemlen , tvb , p , 1 , ENC_BIG_ENDIAN ) ;
if ( optlen < 1 | | optlen > 3 ) {
proto_tree_add_expert_format ( opt_tree , pinfo , & ei_ipv6_shim6_opt_elemlen_invalid , tvb , p , 1 ,
" Invalid element length: %u " , optlen ) ;
return ;
}
p + + ;
/* Locator Preferences */
count = 1 ;
while ( p < len ) {
it = proto_tree_add_text ( opt_tree , tvb , p , optlen , " Locator Preferences %u " , count ) ;
subtree = proto_item_add_subtree ( it , ett_ipv6_shim6_loc_pref ) ;
/* Flags */
if ( optlen > = 1 )
proto_tree_add_item ( subtree , hf_ipv6_shim6_loc_flag , tvb , p , 1 , ENC_BIG_ENDIAN ) ;
/* Priority */
if ( optlen > = 2 )
proto_tree_add_item ( subtree , hf_ipv6_shim6_loc_prio , tvb , p + 1 , 1 , ENC_BIG_ENDIAN ) ;
/* Weight */
if ( optlen > = 3 )
proto_tree_add_item ( subtree , hf_ipv6_shim6_loc_weight , tvb , p + 2 , 1 , ENC_BIG_ENDIAN ) ;
/*
* Shim6 Draft 08 doesn ' t specify the format when the Element length is
* more than three , except that any such formats MUST be defined so that
* the first three octets are the same as in the above case , that is , a
* of a 1 octet flags field followed by a 1 octet priority field , and a
* 1 octet weight field .
*/
p + = optlen ;
count + + ;
}
* offset = p ;
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}
static int
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dissect_shimopts ( tvbuff_t * tvb , int offset , proto_tree * tree , packet_info * pinfo )
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{
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int len , total_len ;
gint p ;
gint padding ;
proto_tree * opt_tree ;
proto_item * ti ;
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const gchar * ctype ;
p = offset ;
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p + = 4 ;
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len = tvb_get_ntohs ( tvb , offset + 2 ) ;
padding = 7 - ( ( len + 3 ) % 8 ) ;
total_len = 4 + len + padding ;
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if ( tree )
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{
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/* Option Type */
2012-08-10 22:55:02 +00:00
ctype = val_to_str_const ( ( tvb_get_ntohs ( tvb , offset ) & SHIM6_BITMASK_OPT_TYPE ) > > 1 , shimoptvals , " Unknown Option Type " ) ;
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ti = proto_tree_add_text ( tree , tvb , offset , total_len , " %s " , ctype ) ;
opt_tree = proto_item_add_subtree ( ti , ett_ipv6_shim6_option ) ;
proto_tree_add_item ( opt_tree , hf_ipv6_shim6_opt_type , tvb , offset , 2 , ENC_BIG_ENDIAN ) ;
/* Critical */
proto_tree_add_item ( opt_tree , hf_ipv6_shim6_opt_critical , tvb , offset + 1 , 1 , ENC_BIG_ENDIAN ) ;
/* Content Length */
proto_tree_add_item ( opt_tree , hf_ipv6_shim6_opt_len , tvb , offset + 2 , 2 , ENC_BIG_ENDIAN ) ;
2013-09-15 01:48:30 +00:00
ti = proto_tree_add_uint ( opt_tree , hf_ipv6_shim6_opt_total_len , tvb , offset + 2 , 2 , total_len ) ;
2011-12-21 14:18:28 +00:00
PROTO_ITEM_SET_GENERATED ( ti ) ;
/* Option Type Specific */
switch ( tvb_get_ntohs ( tvb , offset ) > > 1 )
{
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case SHIM6_OPT_RESPVAL :
p + = dissect_shim_hex ( tvb , p , len , " Validator: " , 0xff , opt_tree ) ;
if ( total_len - ( len + 4 ) > 0 )
proto_tree_add_text ( opt_tree , tvb , p , total_len - ( len + 4 ) , " Padding " ) ;
break ;
case SHIM6_OPT_LOCLIST :
dissect_shim6_opt_loclist ( opt_tree , tvb , & p ) ;
break ;
case SHIM6_OPT_LOCPREF :
dissect_shim6_opt_loc_pref ( opt_tree , tvb , & p , offset + len + 4 , pinfo ) ;
if ( total_len - ( len + 4 ) > 0 )
proto_tree_add_text ( opt_tree , tvb , p , total_len - ( len + 4 ) , " Padding " ) ;
break ;
case SHIM6_OPT_CGAPDM :
p + = dissect_shim_hex ( tvb , p , len , " CGA Parameter Data Structure: " , 0xff , opt_tree ) ;
if ( total_len - ( len + 4 ) > 0 )
proto_tree_add_text ( opt_tree , tvb , p , total_len - ( len + 4 ) , " Padding " ) ;
break ;
case SHIM6_OPT_CGASIG :
p + = dissect_shim_hex ( tvb , p , len , " CGA Signature: " , 0xff , opt_tree ) ;
if ( total_len - ( len + 4 ) > 0 )
proto_tree_add_text ( opt_tree , tvb , p , total_len - ( len + 4 ) , " Padding " ) ;
break ;
case SHIM6_OPT_ULIDPAIR :
proto_tree_add_text ( opt_tree , tvb , p , 4 , " Reserved " ) ;
p + = 4 ;
proto_tree_add_item ( opt_tree , hf_ipv6_shim6_sulid , tvb , p , 16 , ENC_NA ) ;
p + = 16 ;
proto_tree_add_item ( opt_tree , hf_ipv6_shim6_rulid , tvb , p , 16 , ENC_NA ) ;
p + = 16 ;
break ;
case SHIM6_OPT_FII :
proto_tree_add_item ( opt_tree , hf_ipv6_shim6_opt_fii , tvb , p , 4 , ENC_BIG_ENDIAN ) ;
p + = 4 ;
break ;
default :
break ;
2011-12-21 14:18:28 +00:00
}
2007-04-12 17:34:30 +00:00
}
return total_len ;
}
static void
2008-06-25 09:12:35 +00:00
dissect_shim6_ct ( proto_tree * shim_tree , gint hf_item , tvbuff_t * tvb , gint offset , const guchar * label )
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{
2013-12-12 20:39:11 +00:00
guint8 tmp [ 6 ] ;
guchar * ct_str ;
tmp [ 0 ] = tvb_get_guint8 ( tvb , offset + + ) ;
tmp [ 1 ] = tvb_get_guint8 ( tvb , offset + + ) ;
tmp [ 2 ] = tvb_get_guint8 ( tvb , offset + + ) ;
tmp [ 3 ] = tvb_get_guint8 ( tvb , offset + + ) ;
tmp [ 4 ] = tvb_get_guint8 ( tvb , offset + + ) ;
tmp [ 5 ] = tvb_get_guint8 ( tvb , offset + + ) ;
ct_str = wmem_strdup_printf ( wmem_packet_scope ( ) ,
" %s: %02X %02X %02X %02X %02X %02X " , label ,
tmp [ 0 ] & SHIM6_BITMASK_CT , tmp [ 1 ] , tmp [ 2 ] ,
tmp [ 3 ] , tmp [ 4 ] , tmp [ 5 ]
) ;
proto_tree_add_none_format ( shim_tree , hf_item , tvb , offset - 6 , 6 , " %s " , ct_str ) ;
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}
static void
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dissect_shim6_probes ( proto_tree * shim_tree , tvbuff_t * tvb , gint offset ,
2008-06-25 09:12:35 +00:00
const guchar * label , guint nbr_probe ,
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gboolean probes_rcvd )
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{
2013-12-12 20:39:11 +00:00
proto_tree * probes_tree ;
proto_tree * probe_tree ;
proto_item * it ;
gint ett_probes ;
gint ett_probe ;
guint count ;
if ( probes_rcvd ) {
ett_probes = ett_ipv6_shim6_probes_rcvd ;
ett_probe = ett_ipv6_shim6_probe_rcvd ;
} else {
ett_probes = ett_ipv6_shim6_probes_sent ;
ett_probe = ett_ipv6_shim6_probe_sent ;
}
it = proto_tree_add_text ( shim_tree , tvb , offset , 40 * nbr_probe , " %s " , label ) ;
probes_tree = proto_item_add_subtree ( it , ett_probes ) ;
for ( count = 0 ; count < nbr_probe ; count + + ) {
it = proto_tree_add_text ( probes_tree , tvb , offset , 40 , " Probe %u " , count + 1 ) ;
probe_tree = proto_item_add_subtree ( it , ett_probe ) ;
proto_tree_add_item ( probe_tree , hf_ipv6_shim6_psrc , tvb , offset , 16 , ENC_NA ) ;
offset + = 16 ;
proto_tree_add_item ( probe_tree , hf_ipv6_shim6_pdst , tvb , offset , 16 , ENC_NA ) ;
offset + = 16 ;
proto_tree_add_item ( probe_tree , hf_ipv6_shim6_pnonce , tvb , offset , 4 , ENC_BIG_ENDIAN ) ;
offset + = 4 ;
proto_tree_add_item ( probe_tree , hf_ipv6_shim6_pdata , tvb , offset , 4 , ENC_BIG_ENDIAN ) ;
offset + = 4 ;
}
2007-04-12 17:34:30 +00:00
}
/* Dissect SHIM6 data: control messages */
static int
dissect_shimctrl ( tvbuff_t * tvb , gint offset , guint type , proto_tree * shim_tree )
{
2013-12-12 20:39:11 +00:00
gint p ;
guint8 tmp ;
const gchar * sta ;
guint probes_sent ;
guint probes_rcvd ;
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2007-11-23 20:15:28 +00:00
p = offset ;
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2007-11-23 20:15:28 +00:00
switch ( type )
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{
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case SHIM6_TYPE_I1 :
dissect_shim6_ct ( shim_tree , hf_ipv6_shim6_ct , tvb , p , " Initiator Context Tag " ) ;
p + = 6 ;
proto_tree_add_item ( shim_tree , hf_ipv6_shim6_inonce , tvb , p , 4 , ENC_BIG_ENDIAN ) ;
p + = 4 ;
break ;
case SHIM6_TYPE_R1 :
proto_tree_add_text ( shim_tree , tvb , p , 2 , " Reserved2 " ) ;
p + = 2 ;
proto_tree_add_item ( shim_tree , hf_ipv6_shim6_inonce , tvb , p , 4 , ENC_BIG_ENDIAN ) ;
p + = 4 ;
proto_tree_add_item ( shim_tree , hf_ipv6_shim6_rnonce , tvb , p , 4 , ENC_BIG_ENDIAN ) ;
p + = 4 ;
break ;
case SHIM6_TYPE_I2 :
dissect_shim6_ct ( shim_tree , hf_ipv6_shim6_ct , tvb , p , " Initiator Context Tag " ) ;
p + = 6 ;
proto_tree_add_item ( shim_tree , hf_ipv6_shim6_inonce , tvb , p , 4 , ENC_BIG_ENDIAN ) ;
p + = 4 ;
proto_tree_add_item ( shim_tree , hf_ipv6_shim6_rnonce , tvb , p , 4 , ENC_BIG_ENDIAN ) ;
p + = 4 ;
proto_tree_add_text ( shim_tree , tvb , p , 4 , " Reserved2 " ) ;
p + = 4 ;
break ;
case SHIM6_TYPE_R2 :
dissect_shim6_ct ( shim_tree , hf_ipv6_shim6_ct , tvb , p , " Responder Context Tag " ) ;
p + = 6 ;
proto_tree_add_item ( shim_tree , hf_ipv6_shim6_inonce , tvb , p , 4 , ENC_BIG_ENDIAN ) ;
p + = 4 ;
break ;
case SHIM6_TYPE_R1BIS :
dissect_shim6_ct ( shim_tree , hf_ipv6_shim6_ct , tvb , p , " Packet Context Tag " ) ;
p + = 6 ;
proto_tree_add_item ( shim_tree , hf_ipv6_shim6_rnonce , tvb , p , 4 , ENC_BIG_ENDIAN ) ;
p + = 4 ;
break ;
case SHIM6_TYPE_I2BIS :
dissect_shim6_ct ( shim_tree , hf_ipv6_shim6_ct , tvb , p , " Initiator Context Tag " ) ;
p + = 6 ;
proto_tree_add_item ( shim_tree , hf_ipv6_shim6_inonce , tvb , p , 4 , ENC_BIG_ENDIAN ) ;
p + = 4 ;
proto_tree_add_item ( shim_tree , hf_ipv6_shim6_rnonce , tvb , p , 4 , ENC_BIG_ENDIAN ) ;
p + = 4 ;
proto_tree_add_text ( shim_tree , tvb , p , 6 , " Reserved2 " ) ;
p + = 6 ;
dissect_shim6_ct ( shim_tree , hf_ipv6_shim6_ct , tvb , p , " Initiator Context Tag " ) ;
p + = 6 ;
break ;
case SHIM6_TYPE_UPD_REQ :
case SHIM6_TYPE_UPD_ACK :
dissect_shim6_ct ( shim_tree , hf_ipv6_shim6_ct , tvb , p , " Receiver Context Tag " ) ;
p + = 6 ;
proto_tree_add_item ( shim_tree , hf_ipv6_shim6_rnonce , tvb , p , 4 , ENC_BIG_ENDIAN ) ;
p + = 4 ;
break ;
case SHIM6_TYPE_KEEPALIVE :
dissect_shim6_ct ( shim_tree , hf_ipv6_shim6_ct , tvb , p , " Receiver Context Tag " ) ;
p + = 6 ;
proto_tree_add_text ( shim_tree , tvb , p , 4 , " Reserved2 " ) ;
p + = 4 ;
break ;
case SHIM6_TYPE_PROBE :
dissect_shim6_ct ( shim_tree , hf_ipv6_shim6_ct , tvb , p , " Receiver Context Tag " ) ;
p + = 6 ;
tmp = tvb_get_guint8 ( tvb , p ) ;
probes_sent = tmp & SHIM6_BITMASK_PSENT ;
probes_rcvd = ( tmp & SHIM6_BITMASK_PRECVD ) > > 4 ;
proto_tree_add_item ( shim_tree , hf_ipv6_shim6_psent , tvb ,
p , 1 , ENC_BIG_ENDIAN ) ;
proto_tree_add_item ( shim_tree , hf_ipv6_shim6_precvd , tvb ,
p , 1 , ENC_BIG_ENDIAN ) ;
p + + ;
sta = val_to_str_const ( ( tvb_get_guint8 ( tvb , p ) & SHIM6_BITMASK_STA ) > > 6 ,
shimreapstates , " Unknown REAP State " ) ;
proto_tree_add_uint_format_value ( shim_tree , hf_ipv6_shim6_reap , tvb ,
p , 1 , ( tvb_get_guint8 ( tvb , p ) & SHIM6_BITMASK_STA ) > > 6 ,
" %s " , sta ) ;
proto_tree_add_text ( shim_tree , tvb , p , 3 , " Reserved2 " ) ;
p + = 3 ;
/* Probes Sent */
if ( probes_sent ) {
dissect_shim6_probes ( shim_tree , tvb , p , " Probes Sent " ,
probes_sent , FALSE ) ;
p + = 40 * probes_sent ;
}
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/* Probes Received */
if ( probes_rcvd ) {
dissect_shim6_probes ( shim_tree , tvb , p , " Probes Received " ,
probes_rcvd , TRUE ) ;
p + = 40 * probes_rcvd ;
}
break ;
default :
break ;
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}
return p - offset ;
}
/* Dissect SHIM6 data: payload, common part, options */
static const value_string shimctrlvals [ ] = {
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{ SHIM6_TYPE_I1 , " I1 " } ,
{ SHIM6_TYPE_R1 , " R1 " } ,
{ SHIM6_TYPE_I2 , " I2 " } ,
{ SHIM6_TYPE_R2 , " R2 " } ,
{ SHIM6_TYPE_R1BIS , " R1bis " } ,
{ SHIM6_TYPE_I2BIS , " I2bis " } ,
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{ SHIM6_TYPE_UPD_REQ , " Update Request " } ,
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{ SHIM6_TYPE_UPD_ACK , " Update Acknowledgment " } ,
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{ SHIM6_TYPE_KEEPALIVE , " Keepalive " } ,
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{ SHIM6_TYPE_PROBE , " Probe " } ,
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{ 0 , NULL }
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} ;
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static void ipv6_shim6_checkum_additional_info ( tvbuff_t * tvb , packet_info * pinfo ,
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proto_item * it_cksum , int offset , gboolean is_cksum_correct )
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{
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proto_tree * checksum_tree ;
proto_item * item ;
checksum_tree = proto_item_add_subtree ( it_cksum , ett_ipv6_shim6_cksum ) ;
item = proto_tree_add_boolean ( checksum_tree , hf_ipv6_shim6_checksum_good , tvb ,
offset , 2 , is_cksum_correct ) ;
PROTO_ITEM_SET_GENERATED ( item ) ;
item = proto_tree_add_boolean ( checksum_tree , hf_ipv6_shim6_checksum_bad , tvb ,
offset , 2 , ! is_cksum_correct ) ;
PROTO_ITEM_SET_GENERATED ( item ) ;
if ( ! is_cksum_correct ) {
expert_add_info ( pinfo , item , & ei_ipv6_shim6_checksum_bad ) ;
col_append_str ( pinfo - > cinfo , COL_INFO , " [Shim6 CHECKSUM INCORRECT] " ) ;
}
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}
static int
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dissect_shim6 ( tvbuff_t * tvb , int offset , proto_tree * tree , packet_info * pinfo )
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{
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struct ip6_shim shim ;
int len ;
gint p ;
proto_tree * shim_tree ;
proto_item * ti ;
guint8 tmp [ 5 ] ;
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tvb_memcpy ( tvb , ( guint8 * ) & shim , offset , sizeof ( shim ) ) ;
len = ( shim . ip6s_len + 1 ) < < 3 ;
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if ( tree )
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{
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ti = proto_tree_add_item ( tree , hf_ipv6_shim6 , tvb , offset , len , ENC_NA ) ;
shim_tree = proto_item_add_subtree ( ti , ett_ipv6_shim6 ) ;
/* Next Header */
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proto_tree_add_uint_format_value ( shim_tree , hf_ipv6_shim6_nxt , tvb ,
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offset + ( int ) offsetof ( struct ip6_shim , ip6s_nxt ) , 1 , shim . ip6s_nxt ,
" %s (%u) " , ipprotostr ( shim . ip6s_nxt ) , shim . ip6s_nxt ) ;
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/* Header Extension Length */
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proto_tree_add_uint_format_value ( shim_tree , hf_ipv6_shim6_len , tvb ,
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offset + ( int ) offsetof ( struct ip6_shim , ip6s_len ) , 1 , shim . ip6s_len ,
" %u (%d bytes) " , shim . ip6s_len , len ) ;
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/* P Field */
proto_tree_add_item ( shim_tree , hf_ipv6_shim6_p , tvb ,
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offset + ( int ) offsetof ( struct ip6_shim , ip6s_p ) , 1 , ENC_BIG_ENDIAN ) ;
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/* skip the first 2 bytes (nxt hdr, hdr ext len, p+7bits) */
p = offset + 3 ;
if ( shim . ip6s_p & SHIM6_BITMASK_P )
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{
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tmp [ 0 ] = tvb_get_guint8 ( tvb , p + + ) ;
tmp [ 1 ] = tvb_get_guint8 ( tvb , p + + ) ;
tmp [ 2 ] = tvb_get_guint8 ( tvb , p + + ) ;
tmp [ 3 ] = tvb_get_guint8 ( tvb , p + + ) ;
tmp [ 4 ] = tvb_get_guint8 ( tvb , p + + ) ;
/* Payload Extension Header */
proto_tree_add_none_format ( shim_tree , hf_ipv6_shim6_ct , tvb ,
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offset + ( int ) offsetof ( struct ip6_shim , ip6s_p ) , 6 ,
" Receiver Context Tag: %02x %02x %02x %02x %02x %02x " ,
shim . ip6s_p & SHIM6_BITMASK_CT , tmp [ 0 ] , tmp [ 1 ] , tmp [ 2 ] , tmp [ 3 ] , tmp [ 4 ] ) ;
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}
else
{
/* Control Message */
guint16 csum ;
int advance ;
/* Message Type */
proto_tree_add_item ( shim_tree , hf_ipv6_shim6_type , tvb ,
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offset + ( int ) offsetof ( struct ip6_shim , ip6s_p ) , 1 ,
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ENC_BIG_ENDIAN
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) ;
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/* Protocol bit (Must be zero for SHIM6) */
proto_tree_add_item ( shim_tree , hf_ipv6_shim6_proto , tvb , p , 1 , ENC_BIG_ENDIAN ) ;
p + + ;
/* Checksum */
csum = shim_checksum ( tvb_get_ptr ( tvb , offset , len ) , len ) ;
if ( csum = = 0 ) {
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ti = proto_tree_add_uint_format_value ( shim_tree , hf_ipv6_shim6_checksum , tvb , p , 2 ,
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tvb_get_ntohs ( tvb , p ) , " 0x%04x [correct] " , tvb_get_ntohs ( tvb , p ) ) ;
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ipv6_shim6_checkum_additional_info ( tvb , pinfo , ti , p , TRUE ) ;
} else {
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ti = proto_tree_add_uint_format_value ( shim_tree , hf_ipv6_shim6_checksum , tvb , p , 2 ,
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tvb_get_ntohs ( tvb , p ) , " 0x%04x [incorrect: should be 0x%04x] " ,
tvb_get_ntohs ( tvb , p ) , in_cksum_shouldbe ( tvb_get_ntohs ( tvb , p ) , csum ) ) ;
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ipv6_shim6_checkum_additional_info ( tvb , pinfo , ti , p , FALSE ) ;
}
p + = 2 ;
/* Type specific data */
advance = dissect_shimctrl ( tvb , p , shim . ip6s_p & SHIM6_BITMASK_TYPE , shim_tree ) ;
p + = advance ;
/* Options */
while ( p < offset + len ) {
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p + = dissect_shimopts ( tvb , p , shim_tree , pinfo ) ;
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}
}
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}
return len ;
}
/* END SHIM6 PART */
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static void
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dissect_ipv6 ( tvbuff_t * tvb , packet_info * pinfo , proto_tree * tree )
{
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proto_tree * ipv6_tree , * ipv6_tc_tree , * pt ;
proto_item * ipv6_item , * ipv6_tc , * ti , * pi ;
guint8 nxt ;
guint8 stype = 0 ;
int advance ;
guint16 plen ;
gboolean hopopts , routing , frag , ah , shim6 , dstopts ;
guint16 offlg ;
guint32 ident ;
int offset ;
fragment_head * ipfd_head ;
tvbuff_t * next_tvb ;
gboolean update_col_info = TRUE ;
gboolean save_fragmented = FALSE ;
const char * sep = " IPv6 " ;
guint8 * mac_addr ;
const char * name ;
/* Provide as much IPv4 header information as possible as some dissectors
in the ip . proto dissector table may need it */
ws_ip iph ;
struct ip6_hdr ipv6 ;
col_set_str ( pinfo - > cinfo , COL_PROTOCOL , " IPv6 " ) ;
col_clear ( pinfo - > cinfo , COL_INFO ) ;
offset = 0 ;
memset ( & iph , 0 , sizeof ( iph ) ) ;
tvb_memcpy ( tvb , ( guint8 * ) & ipv6 , offset , sizeof ( ipv6 ) ) ;
/* Get extension header and payload length */
plen = g_ntohs ( ipv6 . ip6_plen ) ;
/* Adjust the length of this tvbuff to include only the IPv6 datagram. */
set_actual_length ( tvb , plen + ( guint ) sizeof ( struct ip6_hdr ) ) ;
TVB_SET_ADDRESS ( & pinfo - > net_src , AT_IPv6 , tvb , offset + IP6H_SRC , 16 ) ;
TVB_SET_ADDRESS ( & pinfo - > src , AT_IPv6 , tvb , offset + IP6H_SRC , 16 ) ;
TVB_SET_ADDRESS ( & pinfo - > net_dst , AT_IPv6 , tvb , offset + IP6H_DST , 16 ) ;
TVB_SET_ADDRESS ( & pinfo - > dst , AT_IPv6 , tvb , offset + IP6H_DST , 16 ) ;
ipv6_item = proto_tree_add_item ( tree , proto_ipv6 , tvb , offset , - 1 , ENC_NA ) ;
ipv6_tree = proto_item_add_subtree ( ipv6_item , ett_ipv6 ) ;
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if ( tree ) {
/* !!! warning: (4-bit) version, (6-bit) DSCP, (1-bit) ECN-ECT, (1-bit) ECN-CE and (20-bit) Flow */
pi = proto_tree_add_item ( ipv6_tree , hf_ipv6_version , tvb ,
offset + ( int ) offsetof ( struct ip6_hdr , ip6_vfc ) , 1 , ENC_BIG_ENDIAN ) ;
pt = proto_item_add_subtree ( pi , ett_ipv6_version ) ;
pi = proto_tree_add_item ( pt , hf_ip_version , tvb ,
offset + ( int ) offsetof ( struct ip6_hdr , ip6_vfc ) , 1 , ENC_BIG_ENDIAN ) ;
PROTO_ITEM_SET_GENERATED ( pi ) ;
ipv6_tc = proto_tree_add_item ( ipv6_tree , hf_ipv6_class , tvb ,
offset + ( int ) offsetof ( struct ip6_hdr , ip6_flow ) , 4 , ENC_BIG_ENDIAN ) ;
ipv6_tc_tree = proto_item_add_subtree ( ipv6_tc , ett_ipv6_traffic_class ) ;
proto_tree_add_item ( ipv6_tc_tree , hf_ipv6_traffic_class_dscp , tvb ,
offset + ( int ) offsetof ( struct ip6_hdr , ip6_flow ) , 4 , ENC_BIG_ENDIAN ) ;
proto_tree_add_item ( ipv6_tc_tree , hf_ipv6_traffic_class_ect , tvb ,
offset + ( int ) offsetof ( struct ip6_hdr , ip6_flow ) , 4 , ENC_BIG_ENDIAN ) ;
proto_tree_add_item ( ipv6_tc_tree , hf_ipv6_traffic_class_ce , tvb ,
offset + ( int ) offsetof ( struct ip6_hdr , ip6_flow ) , 4 , ENC_BIG_ENDIAN ) ;
proto_tree_add_item ( ipv6_tree , hf_ipv6_flow , tvb ,
offset + ( int ) offsetof ( struct ip6_hdr , ip6_flow ) , 4 , ENC_BIG_ENDIAN ) ;
proto_tree_add_item ( ipv6_tree , hf_ipv6_plen , tvb ,
offset + ( int ) offsetof ( struct ip6_hdr , ip6_plen ) , 2 , ENC_BIG_ENDIAN ) ;
proto_tree_add_uint_format_value ( ipv6_tree , hf_ipv6_nxt , tvb ,
offset + ( int ) offsetof ( struct ip6_hdr , ip6_nxt ) , 1 ,
ipv6 . ip6_nxt ,
" %s (%u) " ,
ipprotostr ( ipv6 . ip6_nxt ) , ipv6 . ip6_nxt ) ;
proto_tree_add_item ( ipv6_tree , hf_ipv6_hlim , tvb ,
offset + ( int ) offsetof ( struct ip6_hdr , ip6_hlim ) , 1 , ENC_BIG_ENDIAN ) ;
/* Add the different items for the source address */
proto_tree_add_item ( ipv6_tree , hf_ipv6_src , tvb ,
offset + ( int ) offsetof ( struct ip6_hdr , ip6_src ) , 16 , ENC_NA ) ;
ti = proto_tree_add_ipv6 ( ipv6_tree , hf_ipv6_addr , tvb ,
offset + ( int ) offsetof ( struct ip6_hdr , ip6_src ) ,
16 , ( guint8 * ) & ipv6 . ip6_src ) ;
PROTO_ITEM_SET_HIDDEN ( ti ) ;
name = get_addr_name ( & pinfo - > src ) ;
if ( ipv6_summary_in_tree ) {
proto_item_append_text ( ipv6_item , " , Src: %s (%s) " , name , ip6_to_str ( & ipv6 . ip6_src ) ) ;
}
ti = proto_tree_add_string ( ipv6_tree , hf_ipv6_src_host , tvb ,
offset + ( int ) offsetof ( struct ip6_hdr , ip6_src ) ,
16 , name ) ;
PROTO_ITEM_SET_GENERATED ( ti ) ;
PROTO_ITEM_SET_HIDDEN ( ti ) ;
ti = proto_tree_add_string ( ipv6_tree , hf_ipv6_host , tvb ,
offset + ( int ) offsetof ( struct ip6_hdr , ip6_src ) ,
16 , name ) ;
PROTO_ITEM_SET_GENERATED ( ti ) ;
PROTO_ITEM_SET_HIDDEN ( ti ) ;
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/* Extract embedded (IPv6 and MAC) address information */
if ( tvb_get_ntohs ( tvb , offset + IP6H_SRC ) = = 0x2002 ) { /* RFC 3056 section 2 */
ti = proto_tree_add_item ( ipv6_tree , hf_ipv6_src_6to4_gateway_ipv4 , tvb ,
offset + IP6H_SRC + 2 , 4 , ENC_BIG_ENDIAN ) ;
PROTO_ITEM_SET_GENERATED ( ti ) ;
ti = proto_tree_add_item ( ipv6_tree , hf_ipv6_src_6to4_sla_id , tvb ,
offset + IP6H_SRC + 6 , 2 , ENC_BIG_ENDIAN ) ;
PROTO_ITEM_SET_GENERATED ( ti ) ;
ti = proto_tree_add_item ( ipv6_tree , hf_ipv6_6to4_gateway_ipv4 , tvb ,
offset + IP6H_SRC + 2 , 4 , ENC_BIG_ENDIAN ) ;
PROTO_ITEM_SET_GENERATED ( ti ) ;
PROTO_ITEM_SET_HIDDEN ( ti ) ;
ti = proto_tree_add_item ( ipv6_tree , hf_ipv6_6to4_sla_id , tvb ,
offset + IP6H_SRC + 6 , 2 , ENC_BIG_ENDIAN ) ;
PROTO_ITEM_SET_GENERATED ( ti ) ;
PROTO_ITEM_SET_HIDDEN ( ti ) ;
} else if ( tvb_get_ntohl ( tvb , offset + IP6H_SRC ) = = 0x20010000 ) { /* RFC 4380 section 4 */
guint16 mapped_port = tvb_get_ntohs ( tvb , offset + IP6H_SRC + 10 ) ^ 0xffff ;
guint32 client_v4 = tvb_get_ipv4 ( tvb , offset + IP6H_SRC + 12 ) ^ 0xffffffff ;
ti = proto_tree_add_item ( ipv6_tree , hf_ipv6_src_teredo_server_ipv4 , tvb ,
offset + IP6H_SRC + 4 , 4 , ENC_BIG_ENDIAN ) ;
PROTO_ITEM_SET_GENERATED ( ti ) ;
ti = proto_tree_add_uint ( ipv6_tree , hf_ipv6_src_teredo_port , tvb ,
offset + IP6H_SRC + 10 , 2 , mapped_port ) ;
PROTO_ITEM_SET_GENERATED ( ti ) ;
ti = proto_tree_add_ipv4 ( ipv6_tree , hf_ipv6_src_teredo_client_ipv4 , tvb ,
offset + IP6H_SRC + 12 , 4 , client_v4 ) ;
PROTO_ITEM_SET_GENERATED ( ti ) ;
ti = proto_tree_add_item ( ipv6_tree , hf_ipv6_teredo_server_ipv4 , tvb ,
offset + IP6H_SRC + 4 , 4 , ENC_BIG_ENDIAN ) ;
PROTO_ITEM_SET_GENERATED ( ti ) ;
PROTO_ITEM_SET_HIDDEN ( ti ) ;
ti = proto_tree_add_uint ( ipv6_tree , hf_ipv6_teredo_port , tvb ,
offset + IP6H_SRC + 10 , 2 , mapped_port ) ;
PROTO_ITEM_SET_GENERATED ( ti ) ;
PROTO_ITEM_SET_HIDDEN ( ti ) ;
ti = proto_tree_add_ipv4 ( ipv6_tree , hf_ipv6_teredo_client_ipv4 , tvb ,
offset + IP6H_SRC + 12 , 4 , client_v4 ) ;
PROTO_ITEM_SET_GENERATED ( ti ) ;
PROTO_ITEM_SET_HIDDEN ( ti ) ;
}
if ( tvb_get_guint8 ( tvb , offset + IP6H_SRC + 8 ) & 0x02 & & tvb_get_ntohs ( tvb , offset + IP6H_SRC + 11 ) = = 0xfffe ) { /* RFC 4291 appendix A */
mac_addr = ( guint8 * ) wmem_alloc ( wmem_packet_scope ( ) , 6 ) ;
tvb_memcpy ( tvb , mac_addr , offset + IP6H_SRC + 8 , 3 ) ;
tvb_memcpy ( tvb , mac_addr + 3 , offset + IP6H_SRC + 13 , 3 ) ;
mac_addr [ 0 ] & = ~ 0x02 ;
ti = proto_tree_add_ether ( ipv6_tree , hf_ipv6_src_sa_mac , tvb ,
offset + IP6H_SRC + 8 , 6 , mac_addr ) ;
PROTO_ITEM_SET_GENERATED ( ti ) ;
ti = proto_tree_add_ether ( ipv6_tree , hf_ipv6_sa_mac , tvb ,
offset + IP6H_SRC + 8 , 6 , mac_addr ) ;
PROTO_ITEM_SET_GENERATED ( ti ) ;
PROTO_ITEM_SET_HIDDEN ( ti ) ;
} else if ( ( tvb_get_ntohl ( tvb , offset + IP6H_SRC + 8 ) & 0xfcffffff ) = = 0x00005efe ) { /* RFC 5214 section 6.1 */
ti = proto_tree_add_item ( ipv6_tree , hf_ipv6_src_isatap_ipv4 , tvb ,
offset + IP6H_SRC + 12 , 4 , ENC_BIG_ENDIAN ) ;
PROTO_ITEM_SET_GENERATED ( ti ) ;
ti = proto_tree_add_item ( ipv6_tree , hf_ipv6_isatap_ipv4 , tvb ,
offset + IP6H_SRC + 12 , 4 , ENC_BIG_ENDIAN ) ;
PROTO_ITEM_SET_GENERATED ( ti ) ;
PROTO_ITEM_SET_HIDDEN ( ti ) ;
}
/* Add different items for the destination address */
proto_tree_add_item ( ipv6_tree , hf_ipv6_dst , tvb ,
offset + ( int ) offsetof ( struct ip6_hdr , ip6_dst ) , 16 , ENC_NA ) ;
ti = proto_tree_add_ipv6 ( ipv6_tree , hf_ipv6_addr , tvb ,
offset + ( int ) offsetof ( struct ip6_hdr , ip6_dst ) ,
16 , ( guint8 * ) & ipv6 . ip6_dst ) ;
PROTO_ITEM_SET_HIDDEN ( ti ) ;
name = get_addr_name ( & pinfo - > dst ) ;
if ( ipv6_summary_in_tree ) {
proto_item_append_text ( ipv6_item , " , Dst: %s (%s) " , name , ip6_to_str ( & ipv6 . ip6_dst ) ) ;
}
ti = proto_tree_add_string ( ipv6_tree , hf_ipv6_dst_host , tvb ,
offset + ( int ) offsetof ( struct ip6_hdr , ip6_dst ) ,
16 , name ) ;
PROTO_ITEM_SET_GENERATED ( ti ) ;
PROTO_ITEM_SET_HIDDEN ( ti ) ;
ti = proto_tree_add_string ( ipv6_tree , hf_ipv6_host , tvb ,
offset + ( int ) offsetof ( struct ip6_hdr , ip6_dst ) ,
16 , name ) ;
PROTO_ITEM_SET_GENERATED ( ti ) ;
PROTO_ITEM_SET_HIDDEN ( ti ) ;
/* Extract embedded (IPv6 and MAC) address information */
if ( tvb_get_ntohs ( tvb , offset + IP6H_DST ) = = 0x2002 ) { /* RFC 3056 section 2 */
ti = proto_tree_add_item ( ipv6_tree , hf_ipv6_dst_6to4_gateway_ipv4 , tvb ,
offset + IP6H_DST + 2 , 4 , ENC_BIG_ENDIAN ) ;
PROTO_ITEM_SET_GENERATED ( ti ) ;
ti = proto_tree_add_item ( ipv6_tree , hf_ipv6_dst_6to4_sla_id , tvb ,
offset + IP6H_DST + 6 , 2 , ENC_BIG_ENDIAN ) ;
PROTO_ITEM_SET_GENERATED ( ti ) ;
ti = proto_tree_add_item ( ipv6_tree , hf_ipv6_6to4_gateway_ipv4 , tvb ,
offset + IP6H_DST + 2 , 4 , ENC_BIG_ENDIAN ) ;
PROTO_ITEM_SET_GENERATED ( ti ) ;
PROTO_ITEM_SET_HIDDEN ( ti ) ;
ti = proto_tree_add_item ( ipv6_tree , hf_ipv6_6to4_sla_id , tvb ,
offset + IP6H_DST + 6 , 2 , ENC_BIG_ENDIAN ) ;
PROTO_ITEM_SET_GENERATED ( ti ) ;
PROTO_ITEM_SET_HIDDEN ( ti ) ;
} else if ( tvb_get_ntohl ( tvb , offset + IP6H_DST ) = = 0x20010000 ) { /* RFC 4380 section 4 */
guint16 mapped_port = tvb_get_ntohs ( tvb , offset + IP6H_DST + 10 ) ^ 0xffff ;
guint32 client_v4 = tvb_get_ipv4 ( tvb , offset + IP6H_DST + 12 ) ^ 0xffffffff ;
ti = proto_tree_add_item ( ipv6_tree , hf_ipv6_dst_teredo_server_ipv4 , tvb ,
offset + IP6H_DST + 4 , 4 , ENC_BIG_ENDIAN ) ;
PROTO_ITEM_SET_GENERATED ( ti ) ;
ti = proto_tree_add_uint ( ipv6_tree , hf_ipv6_dst_teredo_port , tvb ,
offset + IP6H_DST + 10 , 2 , mapped_port ) ;
PROTO_ITEM_SET_GENERATED ( ti ) ;
ti = proto_tree_add_ipv4 ( ipv6_tree , hf_ipv6_dst_teredo_client_ipv4 , tvb ,
offset + IP6H_DST + 12 , 4 , client_v4 ) ;
PROTO_ITEM_SET_GENERATED ( ti ) ;
ti = proto_tree_add_item ( ipv6_tree , hf_ipv6_teredo_server_ipv4 , tvb ,
offset + IP6H_DST + 4 , 4 , ENC_BIG_ENDIAN ) ;
PROTO_ITEM_SET_GENERATED ( ti ) ;
PROTO_ITEM_SET_HIDDEN ( ti ) ;
ti = proto_tree_add_uint ( ipv6_tree , hf_ipv6_teredo_port , tvb ,
offset + IP6H_DST + 10 , 2 , mapped_port ) ;
PROTO_ITEM_SET_GENERATED ( ti ) ;
PROTO_ITEM_SET_HIDDEN ( ti ) ;
ti = proto_tree_add_ipv4 ( ipv6_tree , hf_ipv6_teredo_client_ipv4 , tvb ,
offset + IP6H_DST + 12 , 4 , client_v4 ) ;
PROTO_ITEM_SET_GENERATED ( ti ) ;
PROTO_ITEM_SET_HIDDEN ( ti ) ;
}
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if ( tvb_get_guint8 ( tvb , offset + IP6H_DST + 8 ) & 0x02 & & tvb_get_ntohs ( tvb , offset + IP6H_DST + 11 ) = = 0xfffe ) { /* RFC 4291 appendix A */
mac_addr = ( guint8 * ) wmem_alloc ( wmem_packet_scope ( ) , 6 ) ;
tvb_memcpy ( tvb , mac_addr , offset + IP6H_DST + 8 , 3 ) ;
tvb_memcpy ( tvb , mac_addr + 3 , offset + IP6H_DST + 13 , 3 ) ;
mac_addr [ 0 ] & = ~ 0x02 ;
ti = proto_tree_add_ether ( ipv6_tree , hf_ipv6_dst_sa_mac , tvb ,
offset + IP6H_DST + 8 , 6 , mac_addr ) ;
PROTO_ITEM_SET_GENERATED ( ti ) ;
ti = proto_tree_add_ether ( ipv6_tree , hf_ipv6_sa_mac , tvb ,
offset + IP6H_DST + 8 , 6 , mac_addr ) ;
PROTO_ITEM_SET_GENERATED ( ti ) ;
PROTO_ITEM_SET_HIDDEN ( ti ) ;
} else if ( ( tvb_get_ntohl ( tvb , offset + IP6H_DST + 8 ) & 0xfcffffff ) = = 0x00005efe ) { /* RFC 5214 section 6.1 */
ti = proto_tree_add_item ( ipv6_tree , hf_ipv6_dst_isatap_ipv4 , tvb ,
offset + IP6H_DST + 12 , 4 , ENC_BIG_ENDIAN ) ;
PROTO_ITEM_SET_GENERATED ( ti ) ;
ti = proto_tree_add_item ( ipv6_tree , hf_ipv6_isatap_ipv4 , tvb ,
offset + IP6H_DST + 12 , 4 , ENC_BIG_ENDIAN ) ;
PROTO_ITEM_SET_GENERATED ( ti ) ;
PROTO_ITEM_SET_HIDDEN ( ti ) ;
}
2010-08-21 00:19:32 +00:00
}
1998-09-16 02:39:15 +00:00
2011-10-05 22:37:00 +00:00
# ifdef HAVE_GEOIP_V6
2013-12-12 20:39:11 +00:00
if ( tree & & ipv6_use_geoip ) {
add_geoip_info ( ipv6_tree , tvb , offset , & ipv6 . ip6_src , & ipv6 . ip6_dst ) ;
}
2011-10-05 22:27:51 +00:00
# endif
2013-12-12 20:39:11 +00:00
/* Fill in IPv4 fields for potential subdissectors */
iph . ip_v_hl = ( tvb_get_guint8 ( tvb , offset + ( int ) offsetof ( struct ip6_hdr , ip6_vfc ) ) > > 4 ) & 0x0F ;
iph . ip_tos = ( guint8 ) ( ( tvb_get_ntohl ( tvb , offset + ( int ) offsetof ( struct ip6_hdr , ip6_flow ) ) > > 20 ) & 0xFF ) ;
iph . ip_len = tvb_get_ntohs ( tvb , offset + ( int ) offsetof ( struct ip6_hdr , ip6_plen ) ) ;
/* Yes, there is not TTL in IPv6 Header... but it is the same of Hop Limit...*/
iph . ip_ttl = tvb_get_guint8 ( tvb , offset + ( int ) offsetof ( struct ip6_hdr , ip6_hlim ) ) ;
/* start of the new header (could be a extension header) */
nxt = tvb_get_guint8 ( tvb , offset + 6 ) ;
offset + = ( int ) sizeof ( struct ip6_hdr ) ;
offlg = 0 ;
ident = 0 ;
1999-03-28 18:32:03 +00:00
2002-05-02 08:55:52 +00:00
/* start out assuming this isn't fragmented, and has none of the other
non - final headers */
2013-12-12 20:39:11 +00:00
hopopts = FALSE ;
routing = FALSE ;
ah = FALSE ;
shim6 = FALSE ;
dstopts = FALSE ;
2000-12-14 18:56:22 +00:00
1999-03-28 18:32:03 +00:00
again :
2013-12-12 20:39:11 +00:00
switch ( nxt ) {
2008-11-07 01:54:08 +00:00
2013-12-12 20:39:11 +00:00
case IP_PROTO_HOPOPTS :
hopopts = TRUE ;
advance = dissect_hopopts ( tvb , offset , ipv6_tree , pinfo , & iph ) ;
nxt = tvb_get_guint8 ( tvb , offset ) ;
offset + = advance ;
plen - = advance ;
goto again ;
2008-11-07 01:54:08 +00:00
1999-03-28 18:32:03 +00:00
case IP_PROTO_ROUTING :
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routing = TRUE ;
advance = dissect_routing6 ( tvb , offset , ipv6_tree , pinfo ) ;
nxt = tvb_get_guint8 ( tvb , offset ) ;
offset + = advance ;
plen - = advance ;
goto again ;
2008-11-07 01:54:08 +00:00
2010-09-21 03:14:49 +00:00
case IP_PROTO_FRAGMENT :
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advance = dissect_frag6 ( tvb , offset , pinfo , ipv6_tree ,
& offlg , & ident ) ;
nxt = tvb_get_guint8 ( tvb , offset ) ;
offset + = advance ;
plen - = advance ;
frag = offlg & ( IP6F_OFF_MASK | IP6F_MORE_FRAG ) ;
save_fragmented | = frag ;
if ( ipv6_reassemble & & frag & & tvb_bytes_exist ( tvb , offset , plen ) ) {
ipfd_head = fragment_add_check ( & ipv6_reassembly_table ,
tvb , offset , pinfo , ident , NULL ,
offlg & IP6F_OFF_MASK ,
plen ,
offlg & IP6F_MORE_FRAG ) ;
next_tvb = process_reassembled_data ( tvb , offset , pinfo , " Reassembled IPv6 " ,
ipfd_head , & ipv6_frag_items , & update_col_info , ipv6_tree ) ;
if ( next_tvb ) { /* Process post-fragment headers after reassembly... */
offset = 0 ;
offlg = 0 ;
tvb = next_tvb ;
goto again ;
}
2008-11-07 01:54:08 +00:00
}
2013-12-12 20:39:11 +00:00
if ( ! ( offlg & IP6F_OFF_MASK ) ) /*...or in the first fragment */
goto again ;
break ;
2008-11-07 01:54:08 +00:00
1999-03-28 18:32:03 +00:00
case IP_PROTO_AH :
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ah = TRUE ;
advance = dissect_ah_header ( tvb_new_subset_remaining ( tvb , offset ) ,
pinfo , ipv6_tree , NULL , NULL ) ;
nxt = tvb_get_guint8 ( tvb , offset ) ;
offset + = advance ;
plen - = advance ;
goto again ;
2008-11-07 01:54:08 +00:00
2007-04-12 17:34:30 +00:00
case IP_PROTO_SHIM6 :
2009-05-19 07:34:33 +00:00
case IP_PROTO_SHIM6_OLD :
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shim6 = TRUE ;
advance = dissect_shim6 ( tvb , offset , ipv6_tree , pinfo ) ;
nxt = tvb_get_guint8 ( tvb , offset ) ;
stype = tvb_get_guint8 ( tvb , offset + 2 ) ;
offset + = advance ;
plen - = advance ;
goto again ;
2008-11-07 01:54:08 +00:00
1999-03-28 18:32:03 +00:00
case IP_PROTO_DSTOPTS :
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dstopts = TRUE ;
advance = dissect_dstopts ( tvb , offset , ipv6_tree , pinfo , & iph ) ;
2008-11-07 01:54:08 +00:00
nxt = tvb_get_guint8 ( tvb , offset ) ;
offset + = advance ;
plen - = advance ;
goto again ;
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case IP_PROTO_NONE :
break ;
default :
/* Since we did not recognize this IPv6 option, check
* whether it is a known protocol . If not , then it
* is an unknown IPv6 option
*/
if ( ! dissector_get_uint_handle ( ip_dissector_table , nxt ) ) {
advance = dissect_unknown_option ( tvb , offset , ipv6_tree ) ;
nxt = tvb_get_guint8 ( tvb , offset ) ;
offset + = advance ;
plen - = advance ;
goto again ;
}
2000-04-20 07:05:58 +00:00
}
2013-12-12 20:39:11 +00:00
proto_item_set_len ( ipv6_item , offset ) ;
2009-12-10 23:15:12 +00:00
2013-12-12 20:39:11 +00:00
/* collect packet info */
pinfo - > ipproto = nxt ;
tap_queue_packet ( ipv6_tap , pinfo , & ipv6 ) ;
2006-06-25 12:15:35 +00:00
2013-12-12 20:39:11 +00:00
if ( offlg & IP6F_OFF_MASK | | ( ipv6_reassemble & & offlg & IP6F_MORE_FRAG ) ) {
/* Not the first fragment, or the first when we are reassembling and there are more. */
/* Don't dissect it; just show this as a fragment. */
/* COL_INFO was filled in by "dissect_frag6()" */
call_dissector ( data_handle , tvb_new_subset_remaining ( tvb , offset ) , pinfo , tree ) ;
return ;
}
2013-11-23 19:16:05 +00:00
2013-12-12 20:39:11 +00:00
/* First fragment, not fragmented, or already reassembled. Dissect what we have here. */
/* Get a tvbuff for the payload. */
next_tvb = tvb_new_subset_remaining ( tvb , offset ) ;
/*
* If this is the first fragment , but not the only fragment ,
* tell the next protocol that .
*/
if ( offlg & IP6F_MORE_FRAG )
pinfo - > fragmented = TRUE ;
else
pinfo - > fragmented = FALSE ;
/* do lookup with the subdissector table */
if ( ! dissector_try_uint_new ( ip_dissector_table , nxt , next_tvb , pinfo , tree , TRUE , & iph ) ) {
/* Unknown protocol.
Handle " no next header " specially . */
if ( nxt = = IP_PROTO_NONE ) {
/* If we had an Authentication Header, the AH dissector already
put something in the Info column ; leave it there . */
if ( ! ah ) {
if ( hopopts | | routing | | dstopts | | shim6 ) {
if ( hopopts ) {
col_append_fstr ( pinfo - > cinfo , COL_INFO , " %shop-by-hop options " ,
sep ) ;
sep = " , " ;
}
if ( routing ) {
col_append_fstr ( pinfo - > cinfo , COL_INFO , " %srouting " , sep ) ;
sep = " , " ;
}
if ( dstopts ) {
col_append_fstr ( pinfo - > cinfo , COL_INFO , " %sdestination options " ,
sep ) ;
}
if ( shim6 ) {
if ( stype & SHIM6_BITMASK_P ) {
col_append_str ( pinfo - > cinfo , COL_INFO , " Shim6 (Payload) " ) ;
}
else {
col_append_fstr ( pinfo - > cinfo , COL_INFO , " Shim6 (%s) " ,
val_to_str_const ( stype & SHIM6_BITMASK_TYPE , shimctrlvals , " Unknown " ) ) ;
}
}
} else
col_set_str ( pinfo - > cinfo , COL_INFO , " IPv6 no next header " ) ;
2007-04-12 17:34:30 +00:00
}
2013-12-12 20:39:11 +00:00
} else {
col_add_fstr ( pinfo - > cinfo , COL_INFO , " %s (%u) " , ipprotostr ( nxt ) , nxt ) ;
2011-12-21 14:18:28 +00:00
}
2013-12-12 20:39:11 +00:00
call_dissector ( data_handle , next_tvb , pinfo , tree ) ;
2001-06-26 17:31:36 +00:00
}
2013-12-12 20:39:11 +00:00
pinfo - > fragmented = save_fragmented ;
1999-03-28 18:32:03 +00:00
}
1999-07-29 05:47:07 +00:00
void
proto_register_ipv6 ( void )
{
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static hf_register_info hf [ ] = {
{ & hf_ipv6_version ,
{ " Version " , " ipv6.version " ,
FT_UINT8 , BASE_DEC , NULL , 0xF0 , NULL , HFILL } } ,
{ & hf_ip_version ,
{ " This field makes the filter \" ip.version == 6 \" possible " , " ip.version " ,
FT_UINT8 , BASE_DEC , NULL , 0xF0 , NULL , HFILL } } ,
{ & hf_ipv6_class ,
{ " Traffic class " , " ipv6.class " ,
FT_UINT32 , BASE_HEX , NULL , 0x0FF00000 , NULL , HFILL } } ,
{ & hf_ipv6_flow ,
{ " Flowlabel " , " ipv6.flow " ,
FT_UINT32 , BASE_HEX , NULL , 0x000FFFFF , NULL , HFILL } } ,
{ & hf_ipv6_plen ,
{ " Payload length " , " ipv6.plen " ,
FT_UINT16 , BASE_DEC , NULL , 0x0 , NULL , HFILL } } ,
{ & hf_ipv6_nxt ,
{ " Next header " , " ipv6.nxt " ,
FT_UINT8 , BASE_DEC | BASE_EXT_STRING , & ipproto_val_ext , 0x0 , NULL , HFILL } } ,
{ & hf_ipv6_hlim ,
{ " Hop limit " , " ipv6.hlim " ,
FT_UINT8 , BASE_DEC , NULL , 0x0 , NULL , HFILL } } ,
{ & hf_ipv6_src ,
{ " Source " , " ipv6.src " ,
FT_IPv6 , BASE_NONE , NULL , 0x0 ,
" Source IPv6 Address " , HFILL } } ,
{ & hf_ipv6_src_host ,
{ " Source Host " , " ipv6.src_host " ,
FT_STRING , BASE_NONE , NULL , 0x0 ,
" Source IPv6 Host " , HFILL } } ,
{ & hf_ipv6_src_sa_mac ,
{ " Source SA MAC " , " ipv6.src_sa_mac " ,
FT_ETHER , BASE_NONE , NULL , 0x0 ,
" Source IPv6 Stateless Autoconfiguration MAC Address " , HFILL } } ,
{ & hf_ipv6_src_isatap_ipv4 ,
{ " Source ISATAP IPv4 " , " ipv6.src_isatap_ipv4 " ,
FT_IPv4 , BASE_NONE , NULL , 0x0 ,
" Source IPv6 ISATAP Encapsulated IPv4 Address " , HFILL } } ,
{ & hf_ipv6_src_6to4_gateway_ipv4 ,
{ " Source 6to4 Gateway IPv4 " , " ipv6.src_6to4_gw_ipv4 " ,
FT_IPv4 , BASE_NONE , NULL , 0x0 ,
" Source IPv6 6to4 Gateway IPv4 Address " , HFILL } } ,
{ & hf_ipv6_src_6to4_sla_id ,
{ " Source 6to4 SLA ID " , " ipv6.src_6to4_sla_id " ,
FT_UINT16 , BASE_DEC , NULL , 0x0 ,
" Source IPv6 6to4 SLA ID " , HFILL } } ,
{ & hf_ipv6_src_teredo_server_ipv4 ,
{ " Source Teredo Server IPv4 " , " ipv6.src_ts_ipv4 " ,
FT_IPv4 , BASE_NONE , NULL , 0x0 ,
" Source IPv6 Teredo Server Encapsulated IPv4 Address " , HFILL } } ,
{ & hf_ipv6_src_teredo_port ,
{ " Source Teredo Port " , " ipv6.src_tc_port " ,
FT_UINT16 , BASE_DEC , NULL , 0x0 ,
" Source IPv6 Teredo Client Mapped Port " , HFILL } } ,
{ & hf_ipv6_src_teredo_client_ipv4 ,
{ " Source Teredo Client IPv4 " , " ipv6.src_tc_ipv4 " ,
FT_IPv4 , BASE_NONE , NULL , 0x0 ,
" Source IPv6 Teredo Client Encapsulated IPv4 Address " , HFILL } } ,
{ & hf_ipv6_dst ,
{ " Destination " , " ipv6.dst " ,
FT_IPv6 , BASE_NONE , NULL , 0x0 ,
" Destination IPv6 Address " , HFILL } } ,
{ & hf_ipv6_dst_host ,
{ " Destination Host " , " ipv6.dst_host " ,
FT_STRING , BASE_NONE , NULL , 0x0 ,
" Destination IPv6 Host " , HFILL } } ,
{ & hf_ipv6_dst_sa_mac ,
{ " Destination SA MAC " , " ipv6.dst_sa_mac " ,
FT_ETHER , BASE_NONE , NULL , 0x0 ,
" Destination IPv6 Stateless Autoconfiguration MAC Address " , HFILL } } ,
{ & hf_ipv6_dst_isatap_ipv4 ,
{ " Destination ISATAP IPv4 " , " ipv6.dst_isatap_ipv4 " ,
FT_IPv4 , BASE_NONE , NULL , 0x0 ,
" Destination IPv6 ISATAP Encapsulated IPv4 Address " , HFILL } } ,
{ & hf_ipv6_dst_6to4_gateway_ipv4 ,
{ " Destination 6to4 Gateway IPv4 " , " ipv6.dst_6to4_gw_ipv4 " ,
FT_IPv4 , BASE_NONE , NULL , 0x0 ,
" Destination IPv6 6to4 Gateway IPv4 Address " , HFILL } } ,
{ & hf_ipv6_dst_6to4_sla_id ,
{ " Destination 6to4 SLA ID " , " ipv6.dst_6to4_sla_id " ,
FT_UINT16 , BASE_DEC , NULL , 0x0 ,
" Destination IPv6 6to4 SLA ID " , HFILL } } ,
{ & hf_ipv6_dst_teredo_server_ipv4 ,
{ " Destination Teredo Server IPv4 " , " ipv6.dst_ts_ipv4 " ,
FT_IPv4 , BASE_NONE , NULL , 0x0 ,
" Destination IPv6 Teredo Server Encapsulated IPv4 Address " , HFILL } } ,
{ & hf_ipv6_dst_teredo_port ,
{ " Destination Teredo Port " , " ipv6.dst_tc_port " ,
FT_UINT16 , BASE_DEC , NULL , 0x0 ,
" Destination IPv6 Teredo Client Mapped Port " , HFILL } } ,
{ & hf_ipv6_dst_teredo_client_ipv4 ,
{ " Destination Teredo Client IPv4 " , " ipv6.dst_tc_ipv4 " ,
FT_IPv4 , BASE_NONE , NULL , 0x0 ,
" Destination IPv6 Teredo Client Encapsulated IPv4 Address " , HFILL } } ,
{ & hf_ipv6_addr ,
{ " Source or Destination Address " , " ipv6.addr " ,
FT_IPv6 , BASE_NONE , NULL , 0x0 ,
NULL , HFILL } } ,
{ & hf_ipv6_host ,
{ " Source or Destination Host " , " ipv6.host " ,
FT_STRING , BASE_NONE , NULL , 0x0 ,
NULL , HFILL } } ,
{ & hf_ipv6_sa_mac ,
{ " SA MAC " , " ipv6.sa_mac " ,
FT_ETHER , BASE_NONE , NULL , 0x0 ,
" IPv6 Stateless Autoconfiguration MAC Address " , HFILL } } ,
{ & hf_ipv6_isatap_ipv4 ,
{ " ISATAP IPv4 " , " ipv6.isatap_ipv4 " ,
FT_IPv4 , BASE_NONE , NULL , 0x0 ,
" IPv6 ISATAP Encapsulated IPv4 Address " , HFILL } } ,
{ & hf_ipv6_6to4_gateway_ipv4 ,
{ " 6to4 Gateway IPv4 " , " ipv6.6to4_gw_ipv4 " ,
FT_IPv4 , BASE_NONE , NULL , 0x0 ,
" IPv6 6to4 Gateway IPv4 Address " , HFILL } } ,
{ & hf_ipv6_6to4_sla_id ,
{ " 6to4 SLA ID " , " ipv6.6to4_sla_id " ,
FT_UINT16 , BASE_DEC , NULL , 0x0 ,
" IPv6 6to4 SLA ID " , HFILL } } ,
{ & hf_ipv6_teredo_server_ipv4 ,
{ " Teredo Server IPv4 " , " ipv6.ts_ipv4 " ,
FT_IPv4 , BASE_NONE , NULL , 0x0 ,
" IPv6 Teredo Server Encapsulated IPv4 Address " , HFILL } } ,
{ & hf_ipv6_teredo_port ,
{ " Teredo Port " , " ipv6.tc_port " ,
FT_UINT16 , BASE_DEC , NULL , 0x0 ,
" IPv6 Teredo Client Mapped Port " , HFILL } } ,
{ & hf_ipv6_teredo_client_ipv4 ,
{ " Teredo Client IPv4 " , " ipv6.tc_ipv4 " ,
FT_IPv4 , BASE_NONE , NULL , 0x0 ,
" IPv6 Teredo Client Encapsulated IPv4 Address " , HFILL } } ,
2011-10-05 22:27:51 +00:00
# ifdef HAVE_GEOIP_V6
2013-12-12 20:39:11 +00:00
{ & hf_geoip_country ,
{ " Source or Destination GeoIP Country " , " ipv6.geoip.country " ,
FT_STRING , STR_UNICODE , NULL , 0x0 ,
NULL , HFILL } } ,
{ & hf_geoip_city ,
{ " Source or Destination GeoIP City " , " ipv6.geoip.city " ,
FT_STRING , STR_UNICODE , NULL , 0x0 ,
NULL , HFILL } } ,
{ & hf_geoip_org ,
{ " Source or Destination GeoIP Organization " , " ipv6.geoip.org " ,
FT_STRING , STR_UNICODE , NULL , 0x0 ,
NULL , HFILL } } ,
{ & hf_geoip_isp ,
{ " Source or Destination GeoIP ISP " , " ipv6.geoip.isp " ,
FT_STRING , STR_UNICODE , NULL , 0x0 ,
NULL , HFILL } } ,
{ & hf_geoip_asnum ,
{ " Source or Destination GeoIP AS Number " , " ipv6.geoip.asnum " ,
FT_STRING , STR_UNICODE , NULL , 0x0 ,
NULL , HFILL } } ,
{ & hf_geoip_lat ,
{ " Source or Destination GeoIP Latitude " , " ipv6.geoip.lat " ,
FT_DOUBLE , BASE_NONE , NULL , 0x0 ,
NULL , HFILL } } ,
{ & hf_geoip_lon ,
{ " Source or Destination GeoIP Longitude " , " ipv6.geoip.lon " ,
FT_DOUBLE , BASE_NONE , NULL , 0x0 ,
NULL , HFILL } } ,
{ & hf_geoip_src_country ,
{ " Source GeoIP Country " , " ipv6.geoip.src_country " ,
FT_STRING , STR_UNICODE , NULL , 0x0 ,
NULL , HFILL } } ,
{ & hf_geoip_src_city ,
{ " Source GeoIP City " , " ipv6.geoip.src_city " ,
FT_STRING , STR_UNICODE , NULL , 0x0 ,
NULL , HFILL } } ,
{ & hf_geoip_src_org ,
{ " Source GeoIP Organization " , " ipv6.geoip.src_org " ,
FT_STRING , STR_UNICODE , NULL , 0x0 ,
NULL , HFILL } } ,
{ & hf_geoip_src_isp ,
{ " Source GeoIP ISP " , " ipv6.geoip.src_isp " ,
FT_STRING , STR_UNICODE , NULL , 0x0 ,
NULL , HFILL } } ,
{ & hf_geoip_src_asnum ,
{ " Source GeoIP AS Number " , " ipv6.geoip.src_asnum " ,
FT_STRING , STR_UNICODE , NULL , 0x0 ,
NULL , HFILL } } ,
{ & hf_geoip_src_lat ,
{ " Source GeoIP Latitude " , " ipv6.geoip.src_lat " ,
FT_DOUBLE , BASE_NONE , NULL , 0x0 ,
NULL , HFILL } } ,
{ & hf_geoip_src_lon ,
{ " Source GeoIP Longitude " , " ipv6.geoip.src_lon " ,
FT_DOUBLE , BASE_NONE , NULL , 0x0 ,
NULL , HFILL } } ,
{ & hf_geoip_dst_country ,
{ " Destination GeoIP Country " , " ipv6.geoip.dst_country " ,
FT_STRING , STR_UNICODE , NULL , 0x0 ,
NULL , HFILL } } ,
{ & hf_geoip_dst_city ,
{ " Destination GeoIP City " , " ipv6.geoip.dst_city " ,
FT_STRING , STR_UNICODE , NULL , 0x0 ,
NULL , HFILL } } ,
{ & hf_geoip_dst_org ,
{ " Destination GeoIP Organization " , " ipv6.geoip.dst_org " ,
FT_STRING , STR_UNICODE , NULL , 0x0 ,
NULL , HFILL } } ,
{ & hf_geoip_dst_isp ,
{ " Destination GeoIP ISP " , " ipv6.geoip.dst_isp " ,
FT_STRING , STR_UNICODE , NULL , 0x0 ,
NULL , HFILL } } ,
{ & hf_geoip_dst_asnum ,
{ " Destination GeoIP AS Number " , " ipv6.geoip.dst_asnum " ,
FT_STRING , STR_UNICODE , NULL , 0x0 ,
NULL , HFILL } } ,
{ & hf_geoip_dst_lat ,
{ " Destination GeoIP Latitude " , " ipv6.geoip.dst_lat " ,
FT_DOUBLE , BASE_NONE , NULL , 0x0 ,
NULL , HFILL } } ,
{ & hf_geoip_dst_lon ,
{ " Destination GeoIP Longitude " , " ipv6.geoip.dst_lon " ,
FT_DOUBLE , BASE_NONE , NULL , 0x0 ,
NULL , HFILL } } ,
2011-10-05 22:27:51 +00:00
# endif /* HAVE_GEOIP_V6 */
2013-12-12 20:39:11 +00:00
{ & hf_ipv6_dst_opt ,
{ " Destination Option " , " ipv6.dst_opt " ,
FT_NONE , BASE_NONE , NULL , 0x0 ,
NULL , HFILL } } ,
{ & hf_ipv6_hop_opt ,
{ " Hop-by-Hop Option " , " ipv6.hop_opt " ,
FT_NONE , BASE_NONE , NULL , 0x0 ,
NULL , HFILL } } ,
{ & hf_ipv6_unk_hdr ,
{ " Unknown Extension Header " , " ipv6.unknown_hdr " ,
FT_NONE , BASE_NONE , NULL , 0x0 ,
NULL , HFILL } } ,
{ & hf_ipv6_opt ,
{ " IPv6 Option " , " ipv6.opt " ,
FT_NONE , BASE_NONE , NULL , 0x0 ,
" Option " , HFILL } } ,
{ & hf_ipv6_opt_type ,
{ " Type " , " ipv6.opt.type " ,
FT_UINT8 , BASE_DEC , VALS ( ipv6_opt_vals ) , 0x0 ,
" Options type " , HFILL } } ,
{ & hf_ipv6_opt_length ,
{ " Length " , " ipv6.opt.length " ,
FT_UINT8 , BASE_DEC , NULL , 0x0 ,
" Length in units of 8 octets " , HFILL } } ,
{ & hf_ipv6_opt_pad1 ,
{ " Pad1 " , " ipv6.opt.pad1 " ,
FT_NONE , BASE_NONE , NULL , 0x0 ,
" Pad1 Option " , HFILL } } ,
{ & hf_ipv6_opt_padn ,
{ " PadN " , " ipv6.opt.padn " ,
FT_BYTES , BASE_NONE , NULL , 0x0 ,
" PadN Option " , HFILL } } ,
{ & hf_ipv6_opt_rtalert ,
{ " Router Alert " , " ipv6.opt.router_alert " ,
FT_UINT16 , BASE_DEC , VALS ( rtalertvals ) , 0x0 ,
NULL , HFILL } } ,
{ & hf_ipv6_opt_tel ,
{ " Tunnel Encapsulation Limit " , " ipv6.opt.tel " ,
FT_UINT8 , BASE_DEC , NULL , 0x0 ,
" How many further levels of encapsulation are permitted " , HFILL } } ,
{ & hf_ipv6_opt_jumbo ,
{ " Jumbo " , " ipv6.opt.jumbo " ,
FT_UINT32 , BASE_DEC , NULL , 0x0 ,
" Length of the IPv6 packet in octets " , HFILL } } ,
{ & hf_ipv6_opt_calipso_doi ,
{ " CALIPSO Domain of Interpretation " , " ipv6.opt.calipso.doi " ,
FT_UINT8 , BASE_DEC , NULL , 0x0 ,
NULL , HFILL } } ,
{ & hf_ipv6_opt_calipso_cmpt_length ,
{ " Compartment Length " , " ipv6.opt.calipso.cmpt.length " ,
FT_UINT8 , BASE_DEC , NULL , 0x0 ,
NULL , HFILL } } ,
{ & hf_ipv6_opt_calipso_sens_level ,
{ " Sensitivity Level " , " ipv6.opt.calipso.sens_level " ,
FT_UINT8 , BASE_DEC , NULL , 0x0 ,
NULL , HFILL } } ,
{ & hf_ipv6_opt_calipso_checksum ,
{ " Checksum " , " ipv6.opt.calipso.checksum " ,
FT_UINT16 , BASE_HEX , NULL , 0x0 ,
NULL , HFILL } } ,
{ & hf_ipv6_opt_calipso_cmpt_bitmap ,
{ " Compartment Bitmap " , " ipv6.opt.calipso.cmpt_bitmap " ,
FT_BYTES , BASE_NONE , NULL , 0x0 ,
NULL , HFILL } } ,
{ & hf_ipv6_opt_qs_func ,
{ " Function " , " ipv6.opt.qs_func " ,
FT_UINT8 , BASE_DEC , VALS ( qs_func_vals ) , QS_FUNC_MASK ,
NULL , HFILL } } ,
{ & hf_ipv6_opt_qs_rate ,
{ " Rate " , " ipv6.opt.qs_rate " ,
FT_UINT8 , BASE_DEC | BASE_EXT_STRING , & qs_rate_vals_ext , QS_RATE_MASK ,
NULL , HFILL } } ,
{ & hf_ipv6_opt_qs_ttl ,
{ " QS TTL " , " ipv6.opt.qs_ttl " ,
FT_UINT8 , BASE_DEC , NULL , 0x0 ,
NULL , HFILL } } ,
{ & hf_ipv6_opt_qs_ttl_diff ,
{ " TTL Diff " , " ipv6.opt.qs_ttl_diff " ,
FT_UINT8 , BASE_DEC , NULL , 0x0 ,
NULL , HFILL } } ,
{ & hf_ipv6_opt_qs_unused ,
{ " Not Used " , " ipv6.opt.qs_unused " ,
FT_UINT8 , BASE_DEC , NULL , 0x0 ,
NULL , HFILL } } ,
{ & hf_ipv6_opt_qs_nonce ,
{ " QS Nonce " , " ipv6.opt.qs_nonce " ,
FT_UINT32 , BASE_HEX , NULL , 0xFFFFFFFC ,
NULL , HFILL } } ,
{ & hf_ipv6_opt_qs_reserved ,
{ " Reserved " , " ipv6.opt.qs_reserved " ,
FT_UINT32 , BASE_HEX , NULL , 0x0003 ,
NULL , HFILL } } ,
{ & hf_ipv6_opt_rpl_flag ,
{ " Flag " , " ipv6.opt.rpl.flag " ,
FT_UINT8 , BASE_DEC , NULL , 0x0 ,
NULL , HFILL } } ,
{ & hf_ipv6_opt_rpl_flag_o ,
{ " Down " , " ipv6.opt.rpl.flag.o " ,
FT_BOOLEAN , 8 , NULL , 0x80 ,
" The packet is expected to progress Up or Down " , HFILL } } ,
{ & hf_ipv6_opt_rpl_flag_r ,
{ " Rank Error " , " ipv6.opt.rpl.flag.r " ,
FT_BOOLEAN , 8 , NULL , 0x40 ,
" Indicating whether a rank error was detected " , HFILL } } ,
{ & hf_ipv6_opt_rpl_flag_f ,
{ " Forwarding Error " , " ipv6.opt.rpl.flag.f " ,
FT_BOOLEAN , 8 , NULL , 0x20 ,
" Indicating that this node can not forward the packet further towards the destination " , HFILL } } ,
{ & hf_ipv6_opt_rpl_flag_rsv ,
{ " Reserved " , " ipv6.opt.rpl.flag.rsv " ,
FT_UINT8 , BASE_HEX , NULL , 0x1F ,
" Reserved (Must Be Zero) " , HFILL } } ,
{ & hf_ipv6_opt_rpl_instance_id ,
{ " RPLInstanceID " , " ipv6.opt.rpl.instance_id " ,
FT_UINT8 , BASE_HEX , NULL , 0x0 ,
" Indicating the DODAG instance along which the packet is sent " , HFILL } } ,
{ & hf_ipv6_opt_rpl_senderrank ,
{ " Sender Rank " , " ipv6.opt.rpl.sender_rank " ,
FT_UINT16 , BASE_HEX , NULL , 0x0 ,
" Set to zero by the source and to DAGRank(rank) by a router that forwards inside the RPL network " , HFILL } } ,
{ & hf_ipv6_opt_experimental ,
{ " Experimental Option " , " ipv6.opt.experimental " ,
FT_BYTES , BASE_NONE , NULL , 0x0 ,
NULL , HFILL } } ,
{ & hf_ipv6_opt_unknown ,
{ " Unknown Option Payload " , " ipv6.opt.unknown " ,
FT_BYTES , BASE_NONE , NULL , 0x0 ,
NULL , HFILL } } ,
{ & hf_ipv6_routing_hdr_opt ,
{ " Routing Header, Type " , " ipv6.routing_hdr " ,
FT_UINT8 , BASE_DEC , NULL , 0x0 ,
" Routing Header Option " , HFILL } } ,
{ & hf_ipv6_routing_hdr_type ,
{ " Type " , " ipv6.routing_hdr.type " ,
FT_UINT8 , BASE_DEC , VALS ( routing_header_type ) , 0x0 ,
" Routing Header Type " , HFILL } } ,
{ & hf_ipv6_routing_hdr_left ,
{ " Segments Left " , " ipv6.routing_hdr.left " ,
FT_UINT8 , BASE_DEC , NULL , 0x0 ,
" Routing Header Segments Left " , HFILL } } ,
{ & hf_ipv6_routing_hdr_addr ,
{ " Address " , " ipv6.routing_hdr.addr " ,
FT_IPv6 , BASE_NONE , NULL , 0x0 ,
" Routing Header Address " , HFILL } } ,
{ & hf_ipv6_frag_nxt ,
{ " Next header " , " ipv6.fragment.nxt " ,
FT_UINT16 , BASE_DEC | BASE_EXT_STRING , & ipproto_val_ext , 0x0 ,
" Fragment next header " , HFILL } } ,
{ & hf_ipv6_frag_reserved ,
{ " Reserved octet " , " ipv6.fragment.reserved_octet " ,
FT_UINT16 , BASE_HEX , NULL , 0x0 ,
" Should always be 0 " , HFILL } } ,
{ & hf_ipv6_frag_offset ,
{ " Offset " , " ipv6.fragment.offset " ,
FT_UINT16 , BASE_DEC_HEX , NULL , IP6F_OFF_MASK ,
" Fragment Offset " , HFILL } } ,
{ & hf_ipv6_frag_reserved_bits ,
{ " Reserved bits " , " ipv6.fragment.reserved_bits " ,
FT_UINT16 , BASE_DEC_HEX , NULL , IP6F_RESERVED_MASK ,
NULL , HFILL } } ,
{ & hf_ipv6_frag_more ,
{ " More Fragment " , " ipv6.fragment.more " ,
FT_BOOLEAN , 16 , TFS ( & tfs_yes_no ) , IP6F_MORE_FRAG ,
" More Fragments " , HFILL } } ,
{ & hf_ipv6_frag_id ,
{ " Identification " , " ipv6.fragment.id " ,
FT_UINT32 , BASE_HEX , NULL , 0x0 ,
" Fragment Identification " , HFILL } } ,
{ & hf_ipv6_fragment_overlap ,
{ " Fragment overlap " , " ipv6.fragment.overlap " ,
FT_BOOLEAN , BASE_NONE , NULL , 0x0 ,
" Fragment overlaps with other fragments " , HFILL } } ,
{ & hf_ipv6_fragment_overlap_conflict ,
{ " Conflicting data in fragment overlap " , " ipv6.fragment.overlap.conflict " ,
FT_BOOLEAN , BASE_NONE , NULL , 0x0 ,
" Overlapping fragments contained conflicting data " , HFILL } } ,
{ & hf_ipv6_fragment_multiple_tails ,
{ " Multiple tail fragments found " , " ipv6.fragment.multipletails " ,
FT_BOOLEAN , BASE_NONE , NULL , 0x0 ,
" Several tails were found when defragmenting the packet " , HFILL } } ,
{ & hf_ipv6_fragment_too_long_fragment ,
{ " Fragment too long " , " ipv6.fragment.toolongfragment " ,
FT_BOOLEAN , BASE_NONE , NULL , 0x0 ,
" Fragment contained data past end of packet " , HFILL } } ,
{ & hf_ipv6_fragment_error ,
{ " Defragmentation error " , " ipv6.fragment.error " ,
FT_FRAMENUM , BASE_NONE , NULL , 0x0 ,
" Defragmentation error due to illegal fragments " , HFILL } } ,
{ & hf_ipv6_fragment_count ,
{ " Fragment count " , " ipv6.fragment.count " ,
FT_UINT32 , BASE_DEC , NULL , 0x0 ,
NULL , HFILL } } ,
{ & hf_ipv6_fragment ,
{ " IPv6 Fragment " , " ipv6.fragment " ,
FT_FRAMENUM , BASE_NONE , NULL , 0x0 ,
NULL , HFILL } } ,
{ & hf_ipv6_fragments ,
{ " IPv6 Fragments " , " ipv6.fragments " ,
FT_NONE , BASE_NONE , NULL , 0x0 ,
NULL , HFILL } } ,
{ & hf_ipv6_reassembled_in ,
{ " Reassembled IPv6 in frame " , " ipv6.reassembled_in " ,
FT_FRAMENUM , BASE_NONE , NULL , 0x0 ,
" This IPv6 packet is reassembled in this frame " , HFILL } } ,
{ & hf_ipv6_reassembled_length ,
{ " Reassembled IPv6 length " , " ipv6.reassembled.length " ,
FT_UINT32 , BASE_DEC , NULL , 0x0 ,
" The total length of the reassembled payload " , HFILL } } ,
{ & hf_ipv6_reassembled_data ,
{ " Reassembled IPv6 data " , " ipv6.reassembled.data " ,
FT_BYTES , BASE_NONE , NULL , 0x0 ,
" The reassembled payload " , HFILL } } ,
/* RPL Routing Header */
{ & hf_ipv6_routing_hdr_rpl_cmprI ,
{ " Compressed Internal Octets (CmprI) " , " ipv6.routing_hdr.rpl.cmprI " ,
FT_UINT32 , BASE_DEC , NULL , IP6RRPL_BITMASK_CMPRI ,
" Elided octets from all but last segment " , HFILL } } ,
{ & hf_ipv6_routing_hdr_rpl_cmprE ,
{ " Compressed Final Octets (CmprE) " , " ipv6.routing_hdr.rpl.cmprE " ,
FT_UINT32 , BASE_DEC , NULL , IP6RRPL_BITMASK_CMPRE ,
" Elided octets from last segment address " , HFILL } } ,
{ & hf_ipv6_routing_hdr_rpl_pad ,
{ " Padding Bytes " , " ipv6.routing_hdr.rpl.pad " ,
FT_UINT32 , BASE_DEC , NULL , IP6RRPL_BITMASK_PAD ,
NULL , HFILL } } ,
{ & hf_ipv6_routing_hdr_rpl_reserved ,
{ " Reserved " , " ipv6.routing_hdr.rpl.reserved " ,
FT_UINT32 , BASE_DEC , NULL , IP6RRPL_BITMASK_RESERVED ,
" Must be Zero " , HFILL } } ,
{ & hf_ipv6_routing_hdr_rpl_segments ,
{ " Total Segments " , " ipv6.routing_hdr.rpl.segments " ,
FT_INT32 , BASE_DEC , NULL , 0 ,
NULL , HFILL } } ,
{ & hf_ipv6_routing_hdr_rpl_addr ,
{ " Address " , " ipv6.routing_hdr.rpl.address " ,
FT_BYTES , BASE_NONE , NULL , 0 ,
NULL , HFILL } } ,
{ & hf_ipv6_routing_hdr_rpl_fulladdr ,
{ " Full Address " , " ipv6.routing_hdr.rpl.full_address " ,
FT_IPv6 , BASE_NONE , NULL , 0 ,
" Uncompressed IPv6 Address " , HFILL } } ,
/* Mobile IPv6 */
{ & hf_ipv6_mipv6_home_address ,
{ " Home Address " , " ipv6.mipv6_home_address " ,
FT_IPv6 , BASE_NONE , NULL , 0x0 ,
NULL , HFILL } } ,
/* SHIM6 */
{ & hf_ipv6_shim6 ,
{ " SHIM6 " , " ipv6.shim6 " ,
FT_NONE , BASE_NONE , NULL , 0x0 ,
NULL , HFILL } } ,
{ & hf_ipv6_shim6_nxt ,
{ " Next Header " , " ipv6.shim6.nxt " ,
FT_UINT8 , BASE_DEC , NULL , 0x0 ,
NULL , HFILL } } ,
{ & hf_ipv6_shim6_len ,
{ " Header Ext Length " , " ipv6.shim6.len " ,
FT_UINT8 , BASE_DEC , NULL , 0x0 ,
NULL , HFILL } } ,
{ & hf_ipv6_shim6_p ,
{ " P Bit " , " ipv6.shim6.p " ,
FT_BOOLEAN , 8 , NULL , SHIM6_BITMASK_P ,
NULL , HFILL } } ,
{ & hf_ipv6_shim6_ct ,
{ " Context Tag " , " ipv6.shim6.ct " ,
FT_NONE , BASE_NONE , NULL , 0x0 ,
NULL , HFILL } } ,
{ & hf_ipv6_shim6_type ,
{ " Message Type " , " ipv6.shim6.type " ,
FT_UINT8 , BASE_DEC ,
VALS ( shimctrlvals ) , SHIM6_BITMASK_TYPE ,
NULL , HFILL } } ,
{ & hf_ipv6_shim6_proto ,
{ " Protocol " , " ipv6.shim6.proto " ,
FT_UINT8 , BASE_DEC ,
VALS ( shim6_protocol ) , SHIM6_BITMASK_PROTOCOL ,
NULL , HFILL } } ,
{ & hf_ipv6_shim6_checksum ,
{ " Checksum " , " ipv6.shim6.checksum " ,
FT_UINT16 , BASE_HEX , NULL , 0x0 ,
" Shim6 Checksum " , HFILL } } ,
{ & hf_ipv6_shim6_checksum_bad ,
{ " Bad Checksum " , " ipv6.shim6.checksum_bad " ,
FT_BOOLEAN , BASE_NONE , NULL , 0x0 ,
" Shim6 Bad Checksum " , HFILL } } ,
{ & hf_ipv6_shim6_checksum_good ,
{ " Good Checksum " , " ipv6.shim6.checksum_good " ,
FT_BOOLEAN , BASE_NONE , NULL , 0x0 ,
NULL , HFILL } } ,
{ & hf_ipv6_shim6_inonce ,
{ " Initiator Nonce " , " ipv6.shim6.inonce " ,
FT_UINT32 , BASE_DEC_HEX , NULL , 0x0 ,
NULL , HFILL } } ,
{ & hf_ipv6_shim6_rnonce ,
{ " Responder Nonce " , " ipv6.shim6.rnonce " ,
FT_UINT32 , BASE_DEC_HEX , NULL , 0x0 ,
NULL , HFILL } } ,
{ & hf_ipv6_shim6_precvd ,
{ " Probes Received " , " ipv6.shim6.precvd " ,
FT_UINT8 , BASE_DEC , NULL , SHIM6_BITMASK_PRECVD ,
NULL , HFILL } } ,
{ & hf_ipv6_shim6_psent ,
{ " Probes Sent " , " ipv6.shim6.psent " ,
FT_UINT8 , BASE_DEC , NULL , SHIM6_BITMASK_PSENT ,
NULL , HFILL } } ,
{ & hf_ipv6_shim6_psrc ,
{ " Source Address " , " ipv6.shim6.psrc " ,
FT_IPv6 , BASE_NONE , NULL , 0x0 ,
" Shim6 Probe Source Address " , HFILL } } ,
{ & hf_ipv6_shim6_pdst ,
{ " Destination Address " , " ipv6.shim6.pdst " ,
FT_IPv6 , BASE_NONE , NULL , 0x0 ,
" Shim6 Probe Destination Address " , HFILL } } ,
{ & hf_ipv6_shim6_pnonce ,
{ " Nonce " , " ipv6.shim6.pnonce " ,
FT_UINT32 , BASE_DEC_HEX , NULL , 0x0 ,
" Shim6 Probe Nonce " , HFILL } } ,
{ & hf_ipv6_shim6_pdata ,
{ " Data " , " ipv6.shim6.pdata " ,
FT_UINT32 , BASE_HEX , NULL , 0x0 ,
" Shim6 Probe Data " , HFILL } } ,
{ & hf_ipv6_shim6_sulid ,
{ " Sender ULID " , " ipv6.shim6.sulid " ,
FT_IPv6 , BASE_NONE , NULL , 0x0 ,
" Shim6 Sender ULID " , HFILL } } ,
{ & hf_ipv6_shim6_rulid ,
{ " Receiver ULID " , " ipv6.shim6.rulid " ,
FT_IPv6 , BASE_NONE , NULL , 0x0 ,
" Shim6 Receiver ULID " , HFILL } } ,
{ & hf_ipv6_shim6_reap ,
{ " REAP State " , " ipv6.shim6.reap " ,
FT_UINT8 , BASE_DEC , NULL , 0x0 ,
NULL , HFILL } } ,
{ & hf_ipv6_shim6_opt_type ,
{ " Option Type " , " ipv6.shim6.opt.type " ,
FT_UINT16 , BASE_DEC ,
VALS ( shimoptvals ) , SHIM6_BITMASK_OPT_TYPE ,
" Shim6 Option Type " , HFILL } } ,
{ & hf_ipv6_shim6_opt_critical ,
{ " Option Critical Bit " , " ipv6.shim6.opt.critical " ,
FT_BOOLEAN , 8 ,
TFS ( & tfs_yes_no ) ,
SHIM6_BITMASK_CRITICAL ,
" TRUE : option is critical, FALSE: option is not critical " ,
HFILL } } ,
{ & hf_ipv6_shim6_opt_len ,
{ " Content Length " , " ipv6.shim6.opt.len " ,
FT_UINT16 , BASE_DEC , NULL , 0x0 ,
" Content Length Option " , HFILL } } ,
{ & hf_ipv6_shim6_opt_total_len ,
{ " Total Length " , " ipv6.shim6.opt.total_len " ,
FT_UINT16 , BASE_DEC , NULL , 0x0 ,
" Total Option Length " , HFILL } } ,
{ & hf_ipv6_shim6_opt_loc_verif_methods ,
{ " Verification Method " , " ipv6.shim6.opt.verif_method " ,
FT_UINT8 , BASE_DEC ,
VALS ( shimverifmethods ) , 0x0 ,
" Locator Verification Method " , HFILL } } ,
{ & hf_ipv6_shim6_opt_loclist ,
{ " Locator List Generation " , " ipv6.shim6.opt.loclist " ,
FT_UINT32 , BASE_DEC_HEX , NULL , 0x0 ,
NULL , HFILL } } ,
{ & hf_ipv6_shim6_locator ,
{ " Locator " , " ipv6.shim6.locator " ,
FT_IPv6 , BASE_NONE , NULL , 0x0 ,
" Shim6 Locator " , HFILL } } ,
{ & hf_ipv6_shim6_opt_locnum ,
{ " Num Locators " , " ipv6.shim6.opt.locnum " ,
FT_UINT8 , BASE_DEC , NULL , 0x0 ,
" Number of Locators in Locator List " , HFILL } } ,
{ & hf_ipv6_shim6_opt_elemlen ,
{ " Element Length " , " ipv6.shim6.opt.elemlen " ,
FT_UINT8 , BASE_DEC , NULL , 0x0 ,
" Length of Elements in Locator Preferences Option " , HFILL } } ,
{ & hf_ipv6_shim6_loc_flag ,
{ " Flags " , " ipv6.shim6.loc.flags " ,
FT_UINT8 , BASE_DEC , NULL , 0x0 ,
" Locator Preferences Flags " , HFILL } } ,
{ & hf_ipv6_shim6_loc_prio ,
{ " Priority " , " ipv6.shim6.loc.prio " ,
FT_UINT8 , BASE_DEC , NULL , 0x0 ,
" Locator Preferences Priority " , HFILL } } ,
{ & hf_ipv6_shim6_loc_weight ,
{ " Weight " , " ipv6.shim6.loc.weight " ,
FT_UINT8 , BASE_DEC , NULL , 0x0 ,
" Locator Preferences Weight " , HFILL } } ,
{ & hf_ipv6_shim6_opt_fii ,
{ " Forked Instance Identifier " , " ipv6.shim6.opt.fii " ,
FT_UINT32 , BASE_DEC_HEX , NULL , 0x0 ,
NULL , HFILL } } ,
{ & hf_ipv6_traffic_class_dscp ,
{ " Differentiated Services Field " , " ipv6.traffic_class.dscp " ,
FT_UINT32 , BASE_HEX | BASE_EXT_STRING , & dscp_vals_ext , 0x0FC00000 , NULL , HFILL } } ,
{ & hf_ipv6_traffic_class_ect ,
{ " ECN-Capable Transport (ECT) " , " ipv6.traffic_class.ect " ,
FT_BOOLEAN , 32 , TFS ( & tfs_set_notset ) , 0x0200000 , NULL , HFILL } } ,
{ & hf_ipv6_traffic_class_ce ,
{ " ECN-CE " , " ipv6.traffic_class.ce " ,
FT_BOOLEAN , 32 , TFS ( & tfs_set_notset ) , 0x0100000 , NULL , HFILL } } ,
} ;
static gint * ett [ ] = {
& ett_ipv6 ,
& ett_ipv6_opt ,
& ett_ipv6_opt_flag ,
& ett_ipv6_version ,
& ett_ipv6_shim6 ,
& ett_ipv6_shim6_option ,
& ett_ipv6_shim6_locators ,
& ett_ipv6_shim6_verif_methods ,
& ett_ipv6_shim6_loc_pref ,
& ett_ipv6_shim6_probes_sent ,
& ett_ipv6_shim6_probes_rcvd ,
& ett_ipv6_shim6_probe_sent ,
& ett_ipv6_shim6_probe_rcvd ,
& ett_ipv6_shim6_cksum ,
& ett_ipv6_fragments ,
& ett_ipv6_fragment ,
& ett_ipv6_traffic_class ,
2011-10-05 22:27:51 +00:00
# ifdef HAVE_GEOIP_V6
2013-12-12 20:39:11 +00:00
& ett_geoip_info
2011-10-05 22:27:51 +00:00
# endif /* HAVE_GEOIP_V6 */
2013-12-12 20:39:11 +00:00
} ;
static ei_register_info ei [ ] = {
{ & ei_ipv6_dst_addr_not_multicast , { " ipv6.dst_addr.not_multicast " , PI_PROTOCOL , PI_WARN , " Destination address must not be a multicast address " , EXPFILL } } ,
{ & ei_ipv6_src_route_list_mult_inst_same_addr , { " ipv6.src_route_list.mult_inst_same_addr " , PI_PROTOCOL , PI_ERROR , " Multiple instances of the same address must not appear in the source route list " , EXPFILL } } ,
{ & ei_ipv6_src_route_list_src_addr , { " ipv6.src_route_list.src_addr " , PI_PROTOCOL , PI_ERROR , " Source address must not appear in the source route list " , EXPFILL } } ,
{ & ei_ipv6_src_route_list_dst_addr , { " ipv6.src_route_list.dst_addr " , PI_PROTOCOL , PI_ERROR , " Destination address must not appear in the source route list " , EXPFILL } } ,
{ & ei_ipv6_src_route_list_multicast_addr , { " ipv6.src_route_list.multicast_addr " , PI_PROTOCOL , PI_ERROR , " Multicast addresses must not appear in the source route list " , EXPFILL } } ,
{ & ei_ipv6_cmpri_cmpre_pad , { " ipv6.routing_hdr.rpl.cmprI.cmprE.pad " , PI_PROTOCOL , PI_WARN , " When cmprI equals 0 and cmprE equals 0, pad MUST equal 0 but instead was X " , EXPFILL } } ,
{ & ei_ipv6_routing_hdr_rpl_reserved , { " ipv6.routing_hdr.rpl.reserved.not0 " , PI_PROTOCOL , PI_WARN , " Reserved field must equal 0 but instead was X " , EXPFILL } } ,
{ & ei_ipv6_opt_tel_invalid_len , { " ipv6.opt.tel.invalid_len " , PI_MALFORMED , PI_ERROR , " Tunnel Encapsulation Limit: Invalid length " , EXPFILL } } ,
{ & ei_ipv6_opt_jumbo_invalid_len , { " ipv6.opt.jumbo.invalid_len " , PI_MALFORMED , PI_ERROR , " Jumbo payload: Invalid length " , EXPFILL } } ,
{ & ei_ipv6_opt_rtalert_invalid_len , { " ipv6.opt.router_alert.invalid_len " , PI_MALFORMED , PI_ERROR , " Router alert: Invalid Length " , EXPFILL } } ,
{ & ei_ipv6_mipv6_home_address_invalid_len , { " ipv6.mipv6_home_address.invalid_len " , PI_MALFORMED , PI_ERROR , " Home Address: Invalid length " , EXPFILL } } ,
{ & ei_ipv6_shim6_opt_elemlen_invalid , { " ipv6.shim6.opt.elemlen.invalid " , PI_MALFORMED , PI_ERROR , " Invalid element length " , EXPFILL } } ,
{ & ei_ipv6_shim6_checksum_bad , { " ipv6.shim6.checksum_bad.expert " , PI_CHECKSUM , PI_ERROR , " Bad checksum " , EXPFILL } } ,
{ & ei_ipv6_routing_hdr_rpl_segments_ge0 , { " ipv6.routing_hdr.rpl.segments.ge0 " , PI_MALFORMED , PI_ERROR , " Calculated total segments must be greater than or equal to 0, instead was X " , EXPFILL } } ,
} ;
/* Decode As handling */
static build_valid_func ipv6_da_build_value [ 1 ] = { ipv6_value } ;
static decode_as_value_t ipv6_da_values = { ipv6_prompt , 1 , ipv6_da_build_value } ;
static decode_as_t ipv6_da = { " ipv6 " , " Network " , " ip.proto " , 1 , 0 , & ipv6_da_values , NULL , NULL ,
decode_as_default_populate_list , decode_as_default_reset , decode_as_default_change , NULL } ;
module_t * ipv6_module ;
expert_module_t * expert_ipv6 ;
proto_ipv6 = proto_register_protocol ( " Internet Protocol Version 6 " , " IPv6 " , " ipv6 " ) ;
proto_register_field_array ( proto_ipv6 , hf , array_length ( hf ) ) ;
proto_register_subtree_array ( ett , array_length ( ett ) ) ;
expert_ipv6 = expert_register_protocol ( proto_ipv6 ) ;
expert_register_field_array ( expert_ipv6 , ei , array_length ( ei ) ) ;
/* Register configuration options */
ipv6_module = prefs_register_protocol ( proto_ipv6 , NULL ) ;
prefs_register_bool_preference ( ipv6_module , " defragment " ,
" Reassemble fragmented IPv6 datagrams " ,
" Whether fragmented IPv6 datagrams should be reassembled " ,
& ipv6_reassemble ) ;
prefs_register_bool_preference ( ipv6_module , " summary_in_tree " ,
" Show IPv6 summary in protocol tree " ,
" Whether the IPv6 summary line should be shown in the protocol tree " ,
& ipv6_summary_in_tree ) ;
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# ifdef HAVE_GEOIP_V6
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prefs_register_bool_preference ( ipv6_module , " use_geoip " ,
" Enable GeoIP lookups " ,
" Whether to look up IPv6 addresses in each GeoIP database we have loaded " ,
& ipv6_use_geoip ) ;
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# endif /* HAVE_GEOIP_V6 */
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/* RPL Strict Header Checking */
prefs_register_bool_preference ( ipv6_module , " perform_strict_rpl_srh_rfc_checking " ,
" Perform strict checking for adherence to the RFC for RPL Source Routing Headers (RFC 6554) " ,
" Whether to check that all RPL Source Routing Headers adhere to RFC 6554 " ,
& g_ipv6_rpl_srh_strict_rfc_checking ) ;
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register_dissector ( " ipv6 " , dissect_ipv6 , proto_ipv6 ) ;
register_init_routine ( ipv6_reassemble_init ) ;
ipv6_tap = register_tap ( " ipv6 " ) ;
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register_decode_as ( & ipv6_da ) ;
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}
Change the sub-dissector handoff registration routines so that the
sub-dissector table is not stored in the header_field_info struct, but
in a separate namespace. Dissector tables are now registered by name
and not by field ID. For example:
udp_dissector_table = register_dissector_table("udp.port");
Because of this different namespace, dissector tables can have names
that are not field names. This is useful for ethertype, since multiple
fields are "ethertypes".
packet-ethertype.c replaces ethertype.c (the name was changed so that it
would be named in the same fashion as all the filenames passed to make-reg-dotc)
Although it registers no protocol or field, it registers one dissector table:
ethertype_dissector_table = register_dissector_table("ethertype");
All protocols that can be called because of an ethertype field now register
that fact with dissector_add() calls.
In this way, one dissector_table services all ethertype fields
(hf_eth_type, hf_llc_type, hf_null_etype, hf_vlan_etype)
Furthermore, the code allows for names of protocols to exist in the
etype_vals, yet a dissector for that protocol doesn't exist. The name
of the dissector is printed in COL_INFO. You're welcome, Richard. :-)
svn path=/trunk/; revision=1848
2000-04-13 18:18:56 +00:00
void
proto_reg_handoff_ipv6 ( void )
{
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dissector_handle_t ipv6_handle ;
data_handle = find_dissector ( " data " ) ;
ipv6_handle = find_dissector ( " ipv6 " ) ;
dissector_add_uint ( " ethertype " , ETHERTYPE_IPv6 , ipv6_handle ) ;
dissector_add_uint ( " ppp.protocol " , PPP_IPV6 , ipv6_handle ) ;
dissector_add_uint ( " ppp.protocol " , ETHERTYPE_IPv6 , ipv6_handle ) ;
dissector_add_uint ( " gre.proto " , ETHERTYPE_IPv6 , ipv6_handle ) ;
dissector_add_uint ( " ip.proto " , IP_PROTO_IPV6 , ipv6_handle ) ;
dissector_add_uint ( " null.type " , BSD_AF_INET6_BSD , ipv6_handle ) ;
dissector_add_uint ( " null.type " , BSD_AF_INET6_FREEBSD , ipv6_handle ) ;
dissector_add_uint ( " null.type " , BSD_AF_INET6_DARWIN , ipv6_handle ) ;
dissector_add_uint ( " chdlc.protocol " , ETHERTYPE_IPv6 , ipv6_handle ) ;
dissector_add_uint ( " fr.nlpid " , NLPID_IP6 , ipv6_handle ) ;
dissector_add_uint ( " osinl.excl " , NLPID_IP6 , ipv6_handle ) ;
dissector_add_uint ( " x.25.spi " , NLPID_IP6 , ipv6_handle ) ;
dissector_add_uint ( " arcnet.protocol_id " , ARCNET_PROTO_IPv6 , ipv6_handle ) ;
ip_dissector_table = find_dissector_table ( " ip.proto " ) ;
Change the sub-dissector handoff registration routines so that the
sub-dissector table is not stored in the header_field_info struct, but
in a separate namespace. Dissector tables are now registered by name
and not by field ID. For example:
udp_dissector_table = register_dissector_table("udp.port");
Because of this different namespace, dissector tables can have names
that are not field names. This is useful for ethertype, since multiple
fields are "ethertypes".
packet-ethertype.c replaces ethertype.c (the name was changed so that it
would be named in the same fashion as all the filenames passed to make-reg-dotc)
Although it registers no protocol or field, it registers one dissector table:
ethertype_dissector_table = register_dissector_table("ethertype");
All protocols that can be called because of an ethertype field now register
that fact with dissector_add() calls.
In this way, one dissector_table services all ethertype fields
(hf_eth_type, hf_llc_type, hf_null_etype, hf_vlan_etype)
Furthermore, the code allows for names of protocols to exist in the
etype_vals, yet a dissector for that protocol doesn't exist. The name
of the dissector is printed in COL_INFO. You're welcome, Richard. :-)
svn path=/trunk/; revision=1848
2000-04-13 18:18:56 +00:00
}
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/*
* Editor modelines
*
* Local Variables :
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* c - basic - offset : 4
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* tab - width : 8
* indent - tabs - mode : nil
* End :
*
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* ex : set shiftwidth = 4 tabstop = 8 expandtab :
* : indentSize = 4 : tabSize = 8 : noTabs = true :
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*/