diff options
Diffstat (limited to 'epan/dissectors/packet-srvloc.c')
| -rw-r--r-- | epan/dissectors/packet-srvloc.c | 1699 |
1 files changed, 1699 insertions, 0 deletions
diff --git a/epan/dissectors/packet-srvloc.c b/epan/dissectors/packet-srvloc.c new file mode 100644 index 0000000000..a5a099b249 --- /dev/null +++ b/epan/dissectors/packet-srvloc.c @@ -0,0 +1,1699 @@ +/* packet-srvloc.c + * Routines for SRVLOC (Service Location Protocol) packet dissection + * Copyright 1999, James Coe <jammer@cin.net> + * Copyright 2002, Brad Hards + * Updated for TCP segments by Greg Morris <gmorris@novell.com> + * Copyright 2003, Greg Morris + * + * NOTE: This is Alpha software not all features have been verified yet. + * In particular I have not had an opportunity to see how it + * responds to SRVLOC over TCP. + * + * $Id$ + * + * Ethereal - Network traffic analyzer + * By Gerald Combs <gerald@ethereal.com> + * Copyright 1998 Gerald Combs + * + * Service Location Protocol is RFC 2165 + * Service Location Protocol Version 2 is RFC 2608 + * - partial support by Brad Hards <bradh@frogmouth.net> + * + * 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. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ + +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif + +#include <stdio.h> +#include <stdlib.h> + +#include <string.h> +#include <time.h> +#include <glib.h> + +#include <epan/packet.h> +#include <epan/strutil.h> +#include "prefs.h" +#include "packet-tcp.h" +#include "reassemble.h" + +static gboolean srvloc_desegment = TRUE; +static int proto_srvloc = -1; +static int hf_srvloc_version = -1; +static int hf_srvloc_function = -1; +static int hf_srvloc_pktlen = -1; +static int hf_srvloc_xid = -1; +static int hf_srvloc_langtaglen = -1; +static int hf_srvloc_langtag = -1; +static int hf_srvloc_nextextoff = -1; +static int hf_srvloc_flags_v1 = -1; +static int hf_srvloc_flags_v1_overflow = -1; +static int hf_srvloc_flags_v1_monolingual = -1; +static int hf_srvloc_flags_v1_url_auth = -1; +static int hf_srvloc_flags_v1_attribute_auth = -1; +static int hf_srvloc_flags_v1_fresh = -1; +static int hf_srvloc_error = -1; +static int hf_srvloc_flags_v2 = -1; +static int hf_srvloc_flags_v2_overflow = -1; +static int hf_srvloc_flags_v2_fresh = -1; +static int hf_srvloc_flags_v2_reqmulti = -1; +static int hf_srvloc_error_v2 = -1; +static int hf_srvloc_daadvert_timestamp = -1; +static int hf_srvloc_daadvert_urllen = -1; +static int hf_srvloc_daadvert_url = -1; +static int hf_srvloc_daadvert_scopelistlen = -1; +static int hf_srvloc_daadvert_scopelist = -1; +static int hf_srvloc_daadvert_attrlistlen = -1; +static int hf_srvloc_daadvert_attrlist = -1; +static int hf_srvloc_daadvert_slpspilen = -1; +static int hf_srvloc_daadvert_slpspi = -1; +static int hf_srvloc_daadvert_authcount = -1; +static int hf_srvloc_srvreq_prlistlen = -1; +static int hf_srvloc_srvreq_prlist = -1; +static int hf_srvloc_srvreq_srvtypelen = -1; +static int hf_srvloc_srvreq_srvtypelist = -1; +static int hf_srvloc_srvreq_scopelistlen = -1; +static int hf_srvloc_srvreq_scopelist = -1; +static int hf_srvloc_srvreq_predicatelen = -1; +static int hf_srvloc_srvreq_predicate = -1; +static int hf_srvloc_srvreq_slpspilen = -1; +static int hf_srvloc_srvreq_slpspi = -1; +static int hf_srvloc_srvrply_urlcount = -1; +static int hf_srvloc_srvreg_attrlistlen = -1; +static int hf_srvloc_srvreg_attrlist = -1; +static int hf_srvloc_srvreg_attrauthcount = -1; +static int hf_srvloc_srvreg_srvtypelen = -1; +static int hf_srvloc_srvreg_srvtype = -1; +static int hf_srvloc_srvreg_scopelistlen = -1; +static int hf_srvloc_srvreg_scopelist = -1; +static int hf_srvloc_srvdereg_scopelistlen = -1; +static int hf_srvloc_srvdereg_scopelist = -1; +static int hf_srvloc_srvdereg_taglistlen = -1; +static int hf_srvloc_srvdereg_taglist = -1; +static int hf_srvloc_attrreq_prlistlen = -1; +static int hf_srvloc_attrreq_prlist = -1; +static int hf_srvloc_attrreq_urllen = -1; +static int hf_srvloc_attrreq_url = -1; +static int hf_srvloc_attrreq_scopelistlen = -1; +static int hf_srvloc_attrreq_scopelist = -1; +static int hf_srvloc_attrreq_attrlistlen = -1; +static int hf_srvloc_attrreq_attrlist = -1; +static int hf_srvloc_attrreq_taglistlen = -1; +static int hf_srvloc_attrreq_taglist = -1; +static int hf_srvloc_attrreq_slpspilen = -1; +static int hf_srvloc_attrreq_slpspi = -1; +static int hf_srvloc_attrrply_attrlistlen = -1; +static int hf_srvloc_attrrply_attrlist = -1; +static int hf_srvloc_attrrply_attrauthcount = -1; +static int hf_srvloc_srvtypereq_prlistlen = -1; +static int hf_srvloc_srvtypereq_prlist = -1; +static int hf_srvloc_srvtypereq_nameauthlistlen = -1; +static int hf_srvloc_srvtypereq_nameauthlistlenall = -1; +static int hf_srvloc_srvtypereq_nameauthlist = -1; +static int hf_srvloc_srvtypereq_scopelistlen = -1; +static int hf_srvloc_srvtypereq_scopelist = -1; +static int hf_srvloc_srvtyperply_srvtypelen = -1; +static int hf_srvloc_srvtyperply_srvtype = -1; +static int hf_srvloc_srvtyperply_srvtypelistlen = -1; +static int hf_srvloc_srvtyperply_srvtypelist = -1; +static int hf_srvloc_saadvert_urllen = -1; +static int hf_srvloc_saadvert_url = -1; +static int hf_srvloc_saadvert_scopelistlen = -1; +static int hf_srvloc_saadvert_scopelist = -1; +static int hf_srvloc_saadvert_attrlistlen = -1; +static int hf_srvloc_saadvert_attrlist = -1; +static int hf_srvloc_saadvert_authcount = -1; +static int hf_srvloc_authblkv2_bsd = -1; +static int hf_srvloc_authblkv2_len = -1; +static int hf_srvloc_authblkv2_timestamp = -1; +static int hf_srvloc_authblkv2_slpspilen = -1; +static int hf_srvloc_authblkv2_slpspi = -1; +static int hf_srvloc_url_reserved = -1; +static int hf_srvloc_url_lifetime = -1; +static int hf_srvloc_url_urllen = -1; +static int hf_srvloc_url_url = -1; +static int hf_srvloc_url_numauths = -1; +static int hf_srvloc_add_ref_ip = -1; + + +static gint ett_srvloc = -1; +static gint ett_srvloc_flags = -1; + + +static const true_false_string tfs_srvloc_flags_overflow = { + "Message will not fit in datagram", + "Message will fit in a datagram" +}; +static const true_false_string tfs_srvloc_flags_v1_monolingual = { + "Only responses in specified language will be accepted", + "Responses in any language will be accepted" +}; +static const true_false_string tfs_srvloc_flags_v1_url_auth = { + "URL Authentication Block is present", + "URL Authentication Block is absent" +}; +static const true_false_string tfs_srvloc_flags_v1_attribute_auth = { + "Attribute Authentication Block is present", + "Attribute Authentication Block is absent" +}; +static const true_false_string tfs_srvloc_flags_fresh = { + "New Service Registration", + "Not a new Service Registration" +}; +static const true_false_string tfs_srvloc_flags_v2_reqmulti = { + "Multicast (or broadcast) request", + "Not multicast or broadcast" +}; + +#define TCP_PORT_SRVLOC 427 +#define UDP_PORT_SRVLOC 427 + +/* Define function types */ + +#define SRVREQ 1 +#define SRVRPLY 2 +#define SRVREG 3 +#define SRVDEREG 4 +#define SRVACK 5 +#define ATTRRQST 6 +#define ATTRRPLY 7 +#define DAADVERT 8 +#define SRVTYPERQST 9 +#define SRVTYPERPLY 10 +#define SAADVERT 11 /* SLPv2, section 8 */ + +/* Create protocol header structure */ + +/* bradh: looks like never used. */ +/* bradh: comment it out for now since it doesn't work for v2 +struct srvloc_hdr { + guint8 version; + guint8 function; + guint16 length; + guint8 flags; + guint8 dialect; + guchar language[2]; + guint16 encoding; + guint16 xid; +}; +*/ + +/* List to resolve function numbers to names */ + +static const value_string srvloc_functions[] = { + { SRVREQ, "Service Request" }, + { SRVRPLY, "Service Reply" }, + { SRVREG, "Service Registration" }, + { SRVDEREG, "Service Deregister" }, + { SRVACK, "Service Acknowledge" }, + { ATTRRQST, "Attribute Request" }, + { ATTRRPLY, "Attribute Reply" }, + { DAADVERT, "DA Advertisement" }, + { SRVTYPERQST, "Service Type Request" }, + { SRVTYPERPLY, "Service Type Reply" }, + { SAADVERT, "SA Advertisement" }, /* v2 only */ + { 0, NULL } +}; + +/* List to resolve flag values to names */ + + +/* Define flag masks */ + +#define FLAG_O 0x80 +#define FLAG_M 0x40 +#define FLAG_U 0x20 +#define FLAG_A 0x10 +#define FLAG_F 0x08 + +/* it all changes for Version 2 */ +#define FLAG_O_V2 0x8000 +#define FLAG_F_V2 0x4000 +#define FLAG_R_V2 0x2000 + +/* Define Error Codes - Version 1*/ + +#define SUCCESS 0 +#define LANG_NOT_SPTD 1 +#define PROT_PARSE_ERR 2 +#define INVLD_REG 3 +#define SCOPE_NOT_SPTD 4 +#define CHRSET_NOT_UND 5 +#define AUTH_ABSENT 6 +#define AUTH_FAILED 7 + +/* List to resolve error codes to names */ + +static const value_string srvloc_errs[] = { + { SUCCESS, "No Error" }, + { LANG_NOT_SPTD, "Language not supported" }, + { PROT_PARSE_ERR, "Protocol parse error" }, + { INVLD_REG, "Invalid registration" }, + { SCOPE_NOT_SPTD, "Scope not supported" }, + { CHRSET_NOT_UND, "Character set not understood" }, + { AUTH_ABSENT, "Authentication absent" }, + { AUTH_FAILED, "Authentication failed" }, + { 0, NULL } +}; + +/* Define Error Codes for Version 2 */ + +#define LANGUAGE_NOT_SUPPORTED 1 +#define PARSE_ERROR 2 +#define INVALID_REGISTRATION 3 +#define SCOPE_NOT_SUPPORTED 4 +#define AUTHENTICATION_UNKNOWN 5 +#define AUTHENTICATION_ABSENT 6 +#define AUTHENTICATION_FAILED 7 +#define VER_NOT_SUPPORTED 9 +#define INTERNAL_ERROR 10 +#define DA_BUSY_NOW 11 +#define OPTION_NOT_UNDERSTOOD 12 +#define INVALID_UPDATE 13 +#define MSG_NOT_SUPPORTED 14 +#define REFRESH_REJECTED 15 + +static const value_string srvloc_errs_v2[] = { + { SUCCESS, "No Error" }, + { LANGUAGE_NOT_SUPPORTED, "No data in the requested language" }, + { PARSE_ERROR, "The message fails to obey SLP syntax." }, + { INVALID_REGISTRATION, "The SrvReg has problems" }, + { SCOPE_NOT_SUPPORTED, "Scope list not supported" }, + { AUTHENTICATION_UNKNOWN, "Unsupported SLP SPI." }, + { AUTHENTICATION_ABSENT, "URL and ATTR authentication not provided"}, + { AUTHENTICATION_FAILED, "Authentication error"}, + { VER_NOT_SUPPORTED, "Unsupported version number in message header" }, + { INTERNAL_ERROR, "The DA (or SA) is too sick to respond" }, + { DA_BUSY_NOW, "UA or SA SHOULD retry" }, + { OPTION_NOT_UNDERSTOOD, "Unknown option from the mandatory range"}, + { INVALID_UPDATE, "Invalid SrvReg" }, + { MSG_NOT_SUPPORTED, "No support for AttrRqst or SrvTypeRqst" }, + { REFRESH_REJECTED, "SrvReg sent too soon"}, + { 0, NULL } +}; + +/* + * Character encodings. + * This is a small subset of what's in + * + * http://www.iana.org/assignments/character-sets + * + * XXX - we should do something useful with this, i.e. properly + * handle strings based on the character set they're in. + * + * XXX - what does "properly handle strings" mean? How do we know + * what character set the terminal can handle (for tty-based code) + * or the GUI can handle (for GUI code)? + * + * XXX - the Ethereal core really should be what does all the + * character set handling for strings, and it should be stuck with + * the task of figuring out how to properly handle them. + */ +#define CHARSET_ASCII 3 +#define CHARSET_ISO_10646_UTF_1 27 +#define CHARSET_ISO_646_BASIC 28 +#define CHARSET_ISO_646_IRV 30 +#define CHARSET_ISO_8859_1 4 +#define CHARSET_ISO_10646_UCS_2 1000 /* a/k/a Unicode */ +#define CHARSET_UTF_7 1012 +#define CHARSET_UTF_8 106 + +static const value_string charsets[] = { + { CHARSET_ASCII, "US-ASCII" }, + { CHARSET_ISO_10646_UTF_1, "ISO 10646 UTF-1" }, + { CHARSET_ISO_646_BASIC, "ISO 646 basic:1983" }, + { CHARSET_ISO_646_IRV, "ISO 646 IRV:1983" }, + { CHARSET_ISO_8859_1, "ISO 8859-1" }, + { CHARSET_ISO_10646_UCS_2, "Unicode" }, + { CHARSET_UTF_7, "UTF-7" }, + { CHARSET_UTF_8, "UTF-8" }, + { 0, NULL } +}; + +static int +dissect_authblk(tvbuff_t *tvb, int offset, proto_tree *tree) +{ + struct tm *stamp; + time_t seconds; + double floatsec; + guint16 length; + + seconds = tvb_get_ntohl(tvb, offset) - 2208988800ul; + stamp = gmtime(&seconds); + if (stamp != NULL) { + floatsec = stamp->tm_sec + tvb_get_ntohl(tvb, offset + 4) / 4294967296.0; + proto_tree_add_text(tree, tvb, offset, 8, + "Timestamp: %04d-%02d-%02d %02d:%02d:%07.4f UTC", + stamp->tm_year + 1900, stamp->tm_mon + 1, + stamp->tm_mday, stamp->tm_hour, stamp->tm_min, + floatsec); + } else { + proto_tree_add_text(tree, tvb, offset, 8, "Timestamp not representable"); + } + proto_tree_add_text(tree, tvb, offset + 8, 2, "Block Structure Desciptor: %u", + tvb_get_ntohs(tvb, offset + 8)); + length = tvb_get_ntohs(tvb, offset + 10); + proto_tree_add_text(tree, tvb, offset + 10, 2, "Authenticator length: %u", + length); + offset += 12; + proto_tree_add_text(tree, tvb, offset, length, "Authentication block: %s", + tvb_format_text(tvb, offset, length)); + offset += length; + return offset; +} + +/* SLPv2 version - Needs to be fixed to match RFC2608 sect 9.2*/ +static int +dissect_authblk_v2(tvbuff_t *tvb, int offset, proto_tree *tree) +{ + guint16 length; + + proto_tree_add_item(tree, hf_srvloc_authblkv2_bsd, tvb, offset, 2, FALSE); + proto_tree_add_item(tree, hf_srvloc_authblkv2_len, tvb, offset+2, 2, FALSE); + proto_tree_add_item(tree, hf_srvloc_authblkv2_timestamp, tvb, offset+4, 4, FALSE); + length = tvb_get_ntohs(tvb, offset + 8); + proto_tree_add_uint(tree, hf_srvloc_authblkv2_slpspilen, tvb, offset + 8, 2, length); + offset += 10; + proto_tree_add_item(tree, hf_srvloc_authblkv2_slpspi, tvb, offset, length, TRUE); + offset += length; + /* add code in here to handle Structured Authentication Block */ + return offset; +} + +static int +dissect_attrauthblk_v2(tvbuff_t *tvb, int offset, proto_tree *tree) +{ + tvb=tvb; tree=tree; /* silence gcc for now */ + /* add code in here to handle attribute authentication */ + return offset; +} + +static void +add_v1_string(proto_tree *tree, int hf, tvbuff_t *tvb, int offset, int length, + guint16 encoding) +{ + char *unicode_str; + + switch (encoding) { + + case CHARSET_ISO_10646_UCS_2: + unicode_str = tvb_fake_unicode(tvb, offset, length/2, FALSE); + proto_tree_add_string(tree, hf, tvb, offset, length, + unicode_str); + g_free(unicode_str); + break; + + default: + proto_tree_add_item(tree, hf, tvb, offset, length, TRUE); + break; + } +} + +static guint8* +unicode_to_bytes(tvbuff_t *tvb, int offset, int length, gboolean endianness) +{ + const char *ascii_text = tvb_get_ptr(tvb, offset, length); + guint8 i, j=0; + guint8 c_char, c_char1; + static guint8 byte_array[255]; + + if (endianness) { + for (i = length; i > 0; i--) { + c_char = ascii_text[i]; + if (c_char != 0) { + i--; + c_char1 = ascii_text[i]; + if (c_char1 == 0) { + i--; + c_char1 = ascii_text[i]; + } + byte_array[j] = c_char1; + j++; + byte_array[j] = c_char; + j++; + } + } + } + else + { + for (i = 0; i < length; i++) { + c_char = ascii_text[i]; + if (c_char != 0) { + byte_array[j] = c_char; + j++; + } + } + } + + byte_array[j]=0; + return byte_array; +} + +/* + * Format of x-x-x-xxxxxxxx. Each of these entries represents the service binding to UDP, TCP, or IPX. + * The first digit is the protocol family: 2 for TCP/UPD, 6 for IPX. + * The second digit is the socket type: 1 for socket stream (TCP), 2 for datagram (UDP and IPX). + * The third is the protocol: 6 for TCP, 17 for UDP, and 1000 for IPX. + * Last is the IP address, in hex, of the interface that is registered (or, in the case of IPX, an IPX network number). +*/ +static void +attr_list(proto_tree *tree, int hf, tvbuff_t *tvb, int offset, int length, + guint16 encoding) +{ + char *attr_type; + int i, svc, ss, type_len, foffset=offset; + guint32 prot; + guint8 *byte_value; + proto_item *ti; + proto_tree *srvloc_tree; + + static const value_string srvloc_svc[] = { + { 50, "TCP/UDP" }, + { 54, "IPX" }, + { 0, NULL } + }; + + static const value_string srvloc_ss[] = { + { 49, "Socket" }, + { 50, "Datagram" }, + { 0, NULL } + }; + + static const value_string srvloc_prot[] = { + { 54, "TCP" }, + { 17, "UDP" }, + { 1000, "IPX" }, + { 0, NULL } + }; + + switch (encoding) { + + case CHARSET_ISO_10646_UCS_2: + + type_len = strcspn(tvb_fake_unicode(tvb, offset, length/2, FALSE), "="); + attr_type = tvb_fake_unicode(tvb, offset+2, type_len-1, FALSE); + proto_tree_add_string(tree, hf, tvb, offset, type_len*2, attr_type); + i=1; + for (foffset = offset + ((type_len*2)+2); foffset<length; foffset += 2) { + + ti = proto_tree_add_text(tree, tvb, foffset, -1, "Item %d", i); + srvloc_tree = proto_item_add_subtree(ti, ett_srvloc); + + svc = tvb_get_guint8(tvb, foffset+1); + proto_tree_add_text(srvloc_tree, tvb, foffset+1, 1, + "Service Type: %s", val_to_str(svc, srvloc_svc, "Unknown")); + ss = tvb_get_guint8(tvb, foffset+5); + proto_tree_add_text(srvloc_tree, tvb, foffset+5, 1, + "Communication Type: %s", val_to_str(ss, srvloc_ss, "Unknown")); + foffset += 9; + if (svc == 50) { + if (tvb_get_guint8(tvb, foffset)==54) { /* TCP */ + prot = tvb_get_guint8(tvb, foffset); + proto_tree_add_text(srvloc_tree, tvb, foffset, 1, + "Protocol: %s", val_to_str(prot, srvloc_prot, "Unknown")); + foffset += 2; + } + else + { + byte_value = unicode_to_bytes(tvb, foffset, 4, FALSE); /* UDP */ + prot = atol(byte_value); + proto_tree_add_text(srvloc_tree, tvb, foffset, 4, + "Protocol: %s", val_to_str(prot, srvloc_prot, "Unknown")); + foffset += 4; + } + } + else + { + byte_value = unicode_to_bytes(tvb, foffset, 8, FALSE); /* IPX */ + prot = atol(byte_value); + proto_tree_add_text(srvloc_tree, tvb, foffset, 8, + "Protocol: %s", val_to_str(prot, srvloc_prot, "Unknown")); + foffset += 8; + } + if (svc == 50) { + byte_value = unicode_to_bytes(tvb, foffset, 16, TRUE); /* IP Address */ + sscanf(byte_value,"%x",&prot); + proto_tree_add_ipv4(srvloc_tree, hf_srvloc_add_ref_ip, tvb, foffset+2, 16, prot); + byte_value = unicode_to_bytes(tvb, foffset+18, 8, FALSE); /* Port */ + sscanf(byte_value,"%x",&prot); + proto_tree_add_text(srvloc_tree, tvb, foffset+18, 8, "Port: %d", prot); + } + else + { + byte_value = unicode_to_bytes(tvb, foffset+2, 16, FALSE); /* IPX Network Address */ + sscanf(byte_value,"%x",&prot); + proto_tree_add_text(srvloc_tree, tvb, foffset+2, 16, "Network: %s", byte_value); + byte_value = unicode_to_bytes(tvb, foffset+18, 24, FALSE); /* IPX Node Address */ + sscanf(byte_value,"%x",&prot); + proto_tree_add_text(srvloc_tree, tvb, foffset+18, 24, "Node: %s", byte_value); + byte_value = unicode_to_bytes(tvb, foffset+42, 8, FALSE); /* Socket */ + sscanf(byte_value,"%x",&prot); + proto_tree_add_text(srvloc_tree, tvb, foffset+42, 8, "Socket: %s", byte_value); + } + i++; + foffset += 57; + } + break; + + case CHARSET_UTF_8: + type_len = strcspn(tvb_get_ptr(tvb, offset, length), "="); + attr_type = unicode_to_bytes(tvb, offset+1, type_len-1, FALSE); + proto_tree_add_string(tree, hf, tvb, offset+1, type_len-1, attr_type); + i=1; + for (foffset = offset + (type_len); foffset<length; foffset++) { + + ti = proto_tree_add_text(tree, tvb, foffset, -1, "Item %d", i); + srvloc_tree = proto_item_add_subtree(ti, ett_srvloc); + + svc = tvb_get_guint8(tvb, foffset+1); + proto_tree_add_text(srvloc_tree, tvb, foffset+1, 1, + "Service Type: %s", val_to_str(svc, srvloc_svc, "Unknown")); + ss = tvb_get_guint8(tvb, foffset+3); + proto_tree_add_text(srvloc_tree, tvb, foffset+3, 1, + "Communication Type: %s", val_to_str(ss, srvloc_ss, "Unknown")); + foffset += 5; + if (svc == 50) { + if (tvb_get_guint8(tvb, foffset)==54) { /* TCP */ + prot = tvb_get_guint8(tvb, foffset); + proto_tree_add_text(srvloc_tree, tvb, foffset, 1, + "Protocol: %s", val_to_str(prot, srvloc_prot, "Unknown")); + foffset += 1; + } + else + { + /* UDP */ + byte_value = unicode_to_bytes(tvb, foffset, 2, FALSE); /* UDP */ + prot = atol(byte_value); + proto_tree_add_text(srvloc_tree, tvb, foffset, 2, + "Protocol: %s", val_to_str(prot, srvloc_prot, "Unknown")); + foffset += 2; + } + } + else + { + byte_value = unicode_to_bytes(tvb, foffset, 4, FALSE); /* IPX */ + prot = atol(byte_value); + proto_tree_add_text(srvloc_tree, tvb, foffset, 4, + "Protocol: %s", val_to_str(prot, srvloc_prot, "Unknown")); + foffset += 4; + } + if (svc == 50) { + byte_value = unicode_to_bytes(tvb, foffset, 8, TRUE); /* IP Address */ + sscanf(byte_value,"%x",&prot); + proto_tree_add_ipv4(srvloc_tree, hf_srvloc_add_ref_ip, tvb, foffset+1, 8, prot); + byte_value = unicode_to_bytes(tvb, foffset+9, 4, FALSE); /* Port */ + sscanf(byte_value,"%x",&prot); + proto_tree_add_text(srvloc_tree, tvb, foffset+9, 4, "Port: %d", prot); + } + else + { + byte_value = unicode_to_bytes(tvb, foffset+1, 8, FALSE); /* IPX Network Address */ + sscanf(byte_value,"%x",&prot); + proto_tree_add_text(srvloc_tree, tvb, foffset+1, 8, "Network: %s", byte_value); + byte_value = unicode_to_bytes(tvb, foffset+9, 12, FALSE); /* IPX Node Address */ + sscanf(byte_value,"%x",&prot); + proto_tree_add_text(srvloc_tree, tvb, foffset+9, 12, "Node: %s", byte_value); + byte_value = unicode_to_bytes(tvb, foffset+21, 4, FALSE); /* Socket */ + sscanf(byte_value,"%x",&prot); + proto_tree_add_text(srvloc_tree, tvb, foffset+21, 4, "Socket: %s", byte_value); + } + i++; + foffset += 28; + } + break; + + + default: + proto_tree_add_item(tree, hf, tvb, offset, length, TRUE); + break; + } +} + +static int +dissect_url_entry_v1(tvbuff_t *tvb, int offset, proto_tree *tree, + guint16 encoding, guint16 flags) +{ + guint16 url_len; + + proto_tree_add_item(tree, hf_srvloc_url_lifetime, tvb, offset, 2, + FALSE); + offset += 2; + url_len = tvb_get_ntohs(tvb, offset); + proto_tree_add_uint(tree, hf_srvloc_url_urllen, tvb, offset, 2, + url_len); + offset += 2; + add_v1_string(tree, hf_srvloc_url_url, tvb, offset, url_len, encoding); + offset += url_len; + if ( (flags & FLAG_U) == FLAG_U ) + offset = dissect_authblk(tvb, offset, tree); + return offset; +} + +static int +dissect_url_entry_v2(tvbuff_t *tvb, int offset, proto_tree *tree) +{ + guint8 reserved; + guint16 url_len; + guint8 num_auths; + + reserved = tvb_get_guint8(tvb, offset); + proto_tree_add_uint(tree, hf_srvloc_url_reserved, tvb, offset, 1, + reserved); + offset += 1; + proto_tree_add_item(tree, hf_srvloc_url_lifetime, tvb, offset, 2, + FALSE); + offset += 2; + url_len = tvb_get_ntohs(tvb, offset); + proto_tree_add_uint(tree, hf_srvloc_url_urllen, tvb, offset, 2, + url_len); + offset += 2; + proto_tree_add_item(tree, hf_srvloc_url_url, tvb, offset, url_len, TRUE); + offset += url_len; + num_auths = tvb_get_guint8(tvb, offset); + proto_tree_add_uint(tree, hf_srvloc_url_numauths, tvb, offset, 1, + num_auths); + offset += 1; + while (num_auths > 0) { + offset = dissect_authblk_v2(tvb, offset, tree); + num_auths--; + } + return offset; +} + +/* Packet dissection routine called by tcp & udp when port 427 detected */ + +static void +dissect_srvloc(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree) +{ + int offset = 0; + proto_item *ti, *tf; + proto_tree *srvloc_tree, *srvloc_flags; + guint8 version; + guint8 function; + guint16 encoding; + guint32 length; /* three bytes needed for v2 */ + guint16 flags; /* two byes needed for v2 */ + guint32 count; + guint32 next_ext_off; /* three bytes, v2 only */ + guint16 lang_tag_len; + nstime_t ts; + + if (check_col(pinfo->cinfo, COL_PROTOCOL)) + col_set_str(pinfo->cinfo, COL_PROTOCOL, "SRVLOC"); + + if (check_col(pinfo->cinfo, COL_INFO)) + col_clear(pinfo->cinfo, COL_INFO); + + version = tvb_get_guint8(tvb, offset); + function = tvb_get_guint8(tvb, offset + 1); + + if (check_col(pinfo->cinfo, COL_INFO)) + col_add_str(pinfo->cinfo, COL_INFO, + val_to_str(function, srvloc_functions, "Unknown Function (%u)")); + + if (tree) { + ti = proto_tree_add_item(tree, proto_srvloc, tvb, offset, -1, FALSE); + srvloc_tree = proto_item_add_subtree(ti, ett_srvloc); + + proto_tree_add_uint(srvloc_tree, hf_srvloc_version, tvb, offset, 1, + version); + proto_tree_add_uint(srvloc_tree, hf_srvloc_function, tvb, offset + 1, 1, + function); + if (version < 2) { + length = tvb_get_ntohs(tvb, offset + 2); + proto_tree_add_uint(srvloc_tree, hf_srvloc_pktlen, tvb, offset + 2, 2, + length); + flags = tvb_get_guint8(tvb, offset + 4); + tf = proto_tree_add_uint(srvloc_tree, hf_srvloc_flags_v1, tvb, offset + 4, 1, + flags); + srvloc_flags = proto_item_add_subtree(tf, ett_srvloc_flags); + proto_tree_add_boolean(srvloc_flags, hf_srvloc_flags_v1_overflow, + tvb, offset+4, 1, flags); + proto_tree_add_boolean(srvloc_flags, hf_srvloc_flags_v1_monolingual, + tvb, offset+4, 1, flags); + proto_tree_add_boolean(srvloc_flags, hf_srvloc_flags_v1_url_auth, + tvb, offset+4, 1, flags); + proto_tree_add_boolean(srvloc_flags, hf_srvloc_flags_v1_attribute_auth, + tvb, offset+4, 1, flags); + proto_tree_add_boolean(srvloc_flags, hf_srvloc_flags_v1_fresh, + tvb, offset+4, 1, flags); + proto_tree_add_text(srvloc_tree, tvb, offset + 5, 1, "Dialect: %u", + tvb_get_guint8(tvb, offset + 5)); + proto_tree_add_text(srvloc_tree, tvb, offset + 6, 2, "Language: %s", + tvb_format_text(tvb, offset + 6, 2)); + encoding = tvb_get_ntohs(tvb, offset + 8); + proto_tree_add_text(srvloc_tree, tvb, offset + 8, 2, "Encoding: %u (%s)", + encoding, + val_to_str(encoding, charsets, "Unknown")); + proto_tree_add_text(srvloc_tree, tvb, offset + 10, 2, "Transaction ID: %u", + tvb_get_ntohs(tvb, offset + 10)); + offset += 12; + + switch (function) { + case SRVREQ: + length = tvb_get_ntohs(tvb, offset); + proto_tree_add_uint(srvloc_tree, hf_srvloc_srvreq_prlistlen, tvb, offset, 2, length); + offset += 2; + add_v1_string(srvloc_tree, hf_srvloc_srvreq_prlist, tvb, offset, length, encoding); + offset += length; + length = tvb_get_ntohs(tvb, offset); + proto_tree_add_uint(srvloc_tree, hf_srvloc_srvreq_predicatelen, tvb, offset, 2, length); + offset += 2; + add_v1_string(srvloc_tree, hf_srvloc_srvreq_predicate, tvb, offset, length, encoding); + offset += length; + break; + + case SRVRPLY: + proto_tree_add_item(srvloc_tree, hf_srvloc_error, tvb, offset, 2, FALSE); + offset += 2; + count = tvb_get_ntohs(tvb, offset); + proto_tree_add_uint(srvloc_tree, hf_srvloc_srvrply_urlcount, tvb, offset, 2, count); + offset += 2; + while (count > 0) { + offset = dissect_url_entry_v1(tvb, offset, srvloc_tree, + encoding, flags); + count--; + }; + break; + + case SRVREG: + offset = dissect_url_entry_v1(tvb, offset, srvloc_tree, encoding, + flags); + length = tvb_get_ntohs(tvb, offset); + proto_tree_add_uint(srvloc_tree, hf_srvloc_srvreg_attrlistlen, tvb, offset, 2, length); + offset += 2; + add_v1_string(srvloc_tree, hf_srvloc_srvreg_attrlist, tvb, offset, length, encoding); + offset += length; + if ( (flags & FLAG_A) == FLAG_A ) + offset = dissect_authblk(tvb, offset, srvloc_tree); + break; + + case SRVDEREG: + length = tvb_get_ntohs(tvb, offset); + proto_tree_add_uint(tree, hf_srvloc_url_urllen, tvb, offset, 2, length); + offset += 2; + add_v1_string(tree, hf_srvloc_url_url, tvb, offset, length, encoding); + offset += length; + if ( (flags & FLAG_U) == FLAG_U ) + offset = dissect_authblk(tvb, offset, srvloc_tree); + length = tvb_get_ntohs(tvb, offset); + proto_tree_add_uint(srvloc_tree, hf_srvloc_srvdereg_taglistlen, tvb, offset, 2, length); + offset += 2; + add_v1_string(srvloc_tree, hf_srvloc_srvdereg_taglist, tvb, offset, length, encoding); + offset += length; + /* + * XXX - this was there before, but RFC 2165 doesn't speak + * of there being an attribute authentication block in + * a Service Deregister message. Is that a post-RFC-2165 + * addition? + */ + if ( (flags & FLAG_A) == FLAG_A ) + offset = dissect_authblk(tvb, offset, srvloc_tree); + break; + + case SRVACK: + proto_tree_add_item(srvloc_tree, hf_srvloc_error, tvb, offset, 2, FALSE); + offset += 2; + break; + + case ATTRRQST: + length = tvb_get_ntohs(tvb, offset); + proto_tree_add_uint(srvloc_tree, hf_srvloc_attrreq_prlistlen, tvb, offset, 2, length); + offset += 2; + add_v1_string(srvloc_tree, hf_srvloc_attrreq_prlist, tvb, offset, length, encoding); + offset += length; + length = tvb_get_ntohs(tvb, offset); + proto_tree_add_uint(srvloc_tree, hf_srvloc_attrreq_urllen, tvb, offset, 2, length); + offset += 2; + add_v1_string(srvloc_tree, hf_srvloc_attrreq_url, tvb, offset, length, encoding); + offset += length; + length = tvb_get_ntohs(tvb, offset); + proto_tree_add_uint(srvloc_tree, hf_srvloc_attrreq_scopelistlen, tvb, offset, 2, length); + offset += 2; + add_v1_string(srvloc_tree, hf_srvloc_attrreq_scopelist, tvb, offset, length, encoding); + offset += length; + length = tvb_get_ntohs(tvb, offset); + proto_tree_add_uint(srvloc_tree, hf_srvloc_attrreq_attrlistlen, tvb, offset, 2, length); + offset += 2; + add_v1_string(srvloc_tree, hf_srvloc_attrreq_attrlist, tvb, offset, length, encoding); + offset += length; + break; + + case ATTRRPLY: + proto_tree_add_item(srvloc_tree, hf_srvloc_error_v2, tvb, offset, 2, FALSE); + offset += 2; + length = tvb_get_ntohs(tvb, offset); + proto_tree_add_uint(srvloc_tree, hf_srvloc_attrrply_attrlistlen, tvb, offset, 2, length); + if (length > 0) { + offset += 2; + attr_list(srvloc_tree, hf_srvloc_attrrply_attrlist, tvb, offset, length, encoding); + offset += length; + if ( (flags & FLAG_A) == FLAG_A ) + offset = dissect_authblk(tvb, offset, srvloc_tree); + } + break; + + case DAADVERT: + proto_tree_add_item(srvloc_tree, hf_srvloc_error, tvb, offset, 2, FALSE); + offset += 2; + length = tvb_get_ntohs(tvb, offset); + proto_tree_add_uint(srvloc_tree, hf_srvloc_daadvert_urllen, tvb, offset, 2, length); + offset += 2; + add_v1_string(srvloc_tree, hf_srvloc_daadvert_url, tvb, offset, length, encoding); + offset += length; + length = tvb_get_ntohs(tvb, offset); + proto_tree_add_uint(srvloc_tree, hf_srvloc_daadvert_scopelistlen, tvb, offset, 2, length); + offset += 2; + add_v1_string(srvloc_tree, hf_srvloc_daadvert_scopelist, tvb, offset, length, encoding); + offset += length; + break; + + case SRVTYPERQST: + length = tvb_get_ntohs(tvb, offset); + proto_tree_add_uint(srvloc_tree, hf_srvloc_srvtypereq_prlistlen, tvb, offset, 2, length); + offset += 2; + add_v1_string(srvloc_tree, hf_srvloc_srvtypereq_prlist, tvb, offset, length, encoding); + offset += length; + length = tvb_get_ntohs(tvb, offset); + /* Updated by Greg Morris on 1-30-04 */ + if (0xFFFF == length) { + proto_tree_add_uint(srvloc_tree, hf_srvloc_srvtypereq_nameauthlistlenall, tvb, offset, 2, length); + offset += 2; + } + else + { + proto_tree_add_uint(srvloc_tree, hf_srvloc_srvtypereq_nameauthlistlen, tvb, offset, 2, length); + offset += 2; + add_v1_string(srvloc_tree, hf_srvloc_srvtypereq_nameauthlist, tvb, offset, length, encoding); + offset += length; + } + length = tvb_get_ntohs(tvb, offset); + proto_tree_add_uint(srvloc_tree, hf_srvloc_srvtypereq_scopelistlen, tvb, offset, 2, length); + offset += 2; + add_v1_string(srvloc_tree, hf_srvloc_srvtypereq_scopelist, tvb, offset, length, encoding); + offset += length; + break; + + case SRVTYPERPLY: + proto_tree_add_item(srvloc_tree, hf_srvloc_error, tvb, offset, 2, FALSE); + offset += 2; + count = tvb_get_ntohs(tvb, offset); + proto_tree_add_text(srvloc_tree, tvb, offset, 2, "Service Type Count: %u", + count); + offset += 2; + while (count > 0) { + length = tvb_get_ntohs(tvb, offset); + proto_tree_add_uint(srvloc_tree, hf_srvloc_srvtyperply_srvtypelen, tvb, offset, 2, length); + offset += 2; + add_v1_string(srvloc_tree, hf_srvloc_srvtyperply_srvtype, tvb, offset, length, encoding); + offset += length; + count--; + }; + break; + + default: + proto_tree_add_text(srvloc_tree, tvb, offset, -1, "Unknown Function Type"); + }; + } + else { /* Version 2 */ + length = tvb_get_ntoh24(tvb, offset + 2); + proto_tree_add_uint(srvloc_tree, hf_srvloc_pktlen, tvb, offset + 2, 3, + length); + flags = tvb_get_ntohs(tvb, offset + 5); + tf = proto_tree_add_uint(srvloc_tree, hf_srvloc_flags_v2, tvb, offset + 5, 2, + flags); + srvloc_flags = proto_item_add_subtree(tf, ett_srvloc_flags); + proto_tree_add_boolean(srvloc_flags, hf_srvloc_flags_v2_overflow, + tvb, offset+5, 1, flags); + proto_tree_add_boolean(srvloc_flags, hf_srvloc_flags_v2_fresh, + tvb, offset+5, 1, flags); + proto_tree_add_boolean(srvloc_flags, hf_srvloc_flags_v2_reqmulti, + tvb, offset+5, 1, flags); + + next_ext_off = tvb_get_ntoh24(tvb, offset + 7); + proto_tree_add_uint(srvloc_tree, hf_srvloc_nextextoff, tvb, offset + 7, 3, + next_ext_off); + proto_tree_add_uint(srvloc_tree, hf_srvloc_xid, tvb, offset + 10, 2, + tvb_get_ntohs(tvb, offset + 10)); + lang_tag_len = tvb_get_ntohs(tvb, offset + 12); + proto_tree_add_uint(srvloc_tree, hf_srvloc_langtaglen, tvb, offset + 12, 2, lang_tag_len); + proto_tree_add_item(srvloc_tree, hf_srvloc_langtag, tvb, offset + 14, lang_tag_len, TRUE); + offset += 14+lang_tag_len; + + switch (function) { + case SRVREQ: /* RFC2608 8.1 */ + length = tvb_get_ntohs(tvb, offset); + proto_tree_add_uint(srvloc_tree, hf_srvloc_srvreq_prlistlen, tvb, offset, 2, length); + offset += 2; + proto_tree_add_item(srvloc_tree, hf_srvloc_srvreq_prlist, tvb, offset, length, TRUE); + offset += length; + length = tvb_get_ntohs(tvb, offset); + proto_tree_add_uint(srvloc_tree, hf_srvloc_srvreq_srvtypelen, tvb, offset, 2, length); + offset += 2; + proto_tree_add_item(srvloc_tree, hf_srvloc_srvreq_srvtypelist, tvb, offset, length, TRUE); + offset += length; + length = tvb_get_ntohs(tvb, offset); + proto_tree_add_uint(srvloc_tree, hf_srvloc_srvreq_scopelistlen, tvb, offset, 2, length); + offset += 2; + proto_tree_add_item(srvloc_tree, hf_srvloc_srvreq_scopelist, tvb, offset, length, TRUE); + offset += length; + length = tvb_get_ntohs(tvb, offset); + proto_tree_add_uint(srvloc_tree, hf_srvloc_srvreq_predicatelen, tvb, offset, 2, length); + offset += 2; + proto_tree_add_item(srvloc_tree, hf_srvloc_srvreq_predicate, tvb, offset, length, TRUE); + offset += length; + length = tvb_get_ntohs(tvb, offset); + proto_tree_add_uint(srvloc_tree, hf_srvloc_srvreq_slpspilen, tvb, offset, 2, length); + offset += 2; + proto_tree_add_item(srvloc_tree, hf_srvloc_srvreq_slpspi, tvb, offset, length, TRUE); + offset += length; + break; + + case SRVRPLY: /* RFC2608 8.2 */ + proto_tree_add_item(srvloc_tree, hf_srvloc_error_v2, tvb, offset, 2, FALSE); + offset += 2; + count = tvb_get_ntohs(tvb, offset); + proto_tree_add_uint(srvloc_tree, hf_srvloc_srvrply_urlcount, tvb, offset, 2, count); + offset += 2; + while (count > 0) { + offset = dissect_url_entry_v2(tvb, offset, srvloc_tree); + count--; + }; + break; + + case SRVREG: /* RFC2608 8.3 */ + offset = dissect_url_entry_v2(tvb, offset, srvloc_tree); + length = tvb_get_ntohs(tvb, offset); + proto_tree_add_uint(srvloc_tree, hf_srvloc_srvreg_srvtypelen, tvb, offset, 2, length); + offset += 2; + proto_tree_add_item(srvloc_tree, hf_srvloc_srvreg_srvtype, tvb, offset, length, TRUE); + offset += length; + length = tvb_get_ntohs(tvb, offset); + proto_tree_add_uint(srvloc_tree, hf_srvloc_srvreg_scopelistlen, tvb, offset, 2, length); + offset += 2; + proto_tree_add_item(srvloc_tree, hf_srvloc_srvreg_scopelist, tvb, offset, length, TRUE); + offset += length; + length = tvb_get_ntohs(tvb, offset); + proto_tree_add_uint(srvloc_tree, hf_srvloc_srvreg_attrlistlen, tvb, offset, 2, length); + offset += 2; + proto_tree_add_item(srvloc_tree, hf_srvloc_srvreg_attrlist, tvb, offset, length, TRUE); + offset += length; + count = tvb_get_guint8(tvb, offset); + proto_tree_add_uint(srvloc_tree, hf_srvloc_srvreg_attrauthcount, tvb, offset, 1, count); + offset += 1; + while (count > 0) { + offset = dissect_attrauthblk_v2(tvb, offset, srvloc_tree); + count--; + } + break; + + case SRVDEREG: /* RFC2608 10.6 */ + length = tvb_get_ntohs(tvb, offset); + proto_tree_add_uint(srvloc_tree, hf_srvloc_srvdereg_scopelistlen, tvb, offset, 2, length); + offset += 2; + proto_tree_add_item(srvloc_tree, hf_srvloc_srvdereg_scopelist, tvb, offset, length, TRUE); + offset += length; + offset = dissect_url_entry_v2(tvb, offset, srvloc_tree); + length = tvb_get_ntohs(tvb, offset); + proto_tree_add_uint(srvloc_tree, hf_srvloc_srvdereg_taglistlen, tvb, offset, 2, length); + offset += 2; + proto_tree_add_item(srvloc_tree, hf_srvloc_srvdereg_taglist, tvb, offset, length, TRUE); + offset += length; + break; + + case SRVACK: /* RFC2608 8.4 */ + proto_tree_add_item(srvloc_tree, hf_srvloc_error_v2, tvb, offset, 2, FALSE); + offset += 2; + break; + + case ATTRRQST: /* RFC2608 10.3*/ + length = tvb_get_ntohs(tvb, offset); + proto_tree_add_uint(srvloc_tree, hf_srvloc_attrreq_prlistlen, tvb, offset, 2, length); + offset += 2; + proto_tree_add_item(srvloc_tree, hf_srvloc_attrreq_prlist, tvb, offset, length, TRUE); + offset += length; + length = tvb_get_ntohs(tvb, offset); + proto_tree_add_uint(srvloc_tree, hf_srvloc_attrreq_urllen, tvb, offset, 2, length); + offset += 2; + proto_tree_add_item(srvloc_tree, hf_srvloc_attrreq_url, tvb, offset, length, TRUE); + offset += length; + length = tvb_get_ntohs(tvb, offset); + proto_tree_add_uint(srvloc_tree, hf_srvloc_attrreq_scopelistlen, tvb, offset, 2, length); + offset += 2; + proto_tree_add_item(srvloc_tree, hf_srvloc_attrreq_scopelist, tvb, offset, length, TRUE); + offset += length; + length = tvb_get_ntohs(tvb, offset); + proto_tree_add_uint(srvloc_tree, hf_srvloc_attrreq_taglistlen, tvb, offset, 2, length); + offset += 2; + proto_tree_add_item(srvloc_tree, hf_srvloc_attrreq_taglist, tvb, offset, length, TRUE); + offset += length; + length = tvb_get_ntohs(tvb, offset); + proto_tree_add_uint(srvloc_tree, hf_srvloc_attrreq_slpspilen, tvb, offset, 2, length); + offset += 2; + proto_tree_add_item(srvloc_tree, hf_srvloc_attrreq_slpspi, tvb, offset, length, TRUE); + offset += length; + break; + + case ATTRRPLY: /* RFC2608 10.4 */ + proto_tree_add_item(srvloc_tree, hf_srvloc_error_v2, tvb, offset, 2, FALSE); + offset += 2; + length = tvb_get_ntohs(tvb, offset); + proto_tree_add_uint(srvloc_tree, hf_srvloc_attrrply_attrlistlen, tvb, offset, 2, length); + if (length > 0) { + offset += 2; + attr_list(srvloc_tree, hf_srvloc_attrrply_attrlist, tvb, offset, length, CHARSET_UTF_8); + offset += length; + count = tvb_get_guint8(tvb, offset); + proto_tree_add_uint(srvloc_tree, hf_srvloc_attrrply_attrauthcount, tvb, offset, 1, count); + offset += 1; + while (count > 0) { + offset = dissect_attrauthblk_v2(tvb, offset, srvloc_tree); + count--; + } + } + break; + + case DAADVERT: /* RCC 2608 8.5 */ + proto_tree_add_item(srvloc_tree, hf_srvloc_error_v2, tvb, offset, 2, FALSE); + offset += 2; + ts.nsecs = 0; + ts.secs = tvb_get_ntohl(tvb, offset); + proto_tree_add_time(srvloc_tree, hf_srvloc_daadvert_timestamp, tvb, offset, 4, + &ts); + offset += 4; + length = tvb_get_ntohs(tvb, offset); + proto_tree_add_uint(srvloc_tree, hf_srvloc_daadvert_urllen, tvb, offset, 2, length); + offset += 2; + proto_tree_add_item(srvloc_tree, hf_srvloc_daadvert_url, tvb, offset, length, TRUE); + offset += length; + length = tvb_get_ntohs(tvb, offset); + proto_tree_add_uint(srvloc_tree, hf_srvloc_daadvert_scopelistlen, tvb, offset, 2, length); + offset += 2; + proto_tree_add_item(srvloc_tree, hf_srvloc_daadvert_scopelist, tvb, offset, length, TRUE); + offset += length; + length = tvb_get_ntohs(tvb, offset); + proto_tree_add_uint(srvloc_tree, hf_srvloc_daadvert_attrlistlen, tvb, offset, 2, length); + offset += 2; + proto_tree_add_item(srvloc_tree, hf_srvloc_daadvert_attrlist, tvb, offset, length, TRUE); + offset += length; + length = tvb_get_ntohs(tvb, offset); + proto_tree_add_uint(srvloc_tree, hf_srvloc_daadvert_slpspilen, tvb, offset, 2, length); + offset += 2; + proto_tree_add_item(srvloc_tree, hf_srvloc_daadvert_slpspi, tvb, offset, length, TRUE); + offset += length; + count = tvb_get_guint8(tvb, offset); + proto_tree_add_uint(srvloc_tree, hf_srvloc_daadvert_authcount, tvb, offset, 1, count); + offset += 1; + while (count > 0) { + offset = dissect_authblk_v2(tvb, offset, srvloc_tree); + count--; + } + break; + + case SRVTYPERQST: /* RFC2608 10.1 */ + length = tvb_get_ntohs(tvb, offset); + proto_tree_add_uint(srvloc_tree, hf_srvloc_srvtypereq_prlistlen, tvb, offset, 2, length); + offset += 2; + proto_tree_add_item(srvloc_tree, hf_srvloc_srvtypereq_prlist, tvb, offset, length, TRUE); + offset += length; + length = tvb_get_ntohs(tvb, offset); + if (0xFFFF == length) { + proto_tree_add_uint(srvloc_tree, hf_srvloc_srvtypereq_nameauthlistlenall, tvb, offset, 2, length); + offset += 2; + } else { + proto_tree_add_uint(srvloc_tree, hf_srvloc_srvtypereq_nameauthlistlen, tvb, offset, 2, length); + offset += 2; + proto_tree_add_item(srvloc_tree, hf_srvloc_srvtypereq_nameauthlist, tvb, offset, length, TRUE); + offset += length; + } + length = tvb_get_ntohs(tvb, offset); + proto_tree_add_uint(srvloc_tree, hf_srvloc_srvtypereq_scopelistlen, tvb, offset, 2, length); + offset += 2; + proto_tree_add_item(srvloc_tree, hf_srvloc_srvtypereq_scopelist, tvb, offset, length, TRUE); + offset += length; + break; + + case SRVTYPERPLY: /* rfc2608 10.2 */ + proto_tree_add_item(srvloc_tree, hf_srvloc_error_v2, tvb, offset, 2, FALSE); + offset += 2; + length = tvb_get_ntohs(tvb, offset); + proto_tree_add_uint(srvloc_tree, hf_srvloc_srvtyperply_srvtypelistlen, tvb, offset, 2, length); + offset += 2; + proto_tree_add_item(srvloc_tree, hf_srvloc_srvtyperply_srvtypelist, tvb, offset, length, TRUE); + break; + + case SAADVERT: /* rfc2608 10.2 */ + length = tvb_get_ntohs(tvb, offset); + proto_tree_add_uint(srvloc_tree, hf_srvloc_saadvert_urllen, tvb, offset, 2, + length); + offset += 2; + proto_tree_add_item(srvloc_tree, hf_srvloc_saadvert_url, tvb, offset, length, TRUE); + offset += length; + length = tvb_get_ntohs(tvb, offset); + proto_tree_add_uint(srvloc_tree, hf_srvloc_saadvert_scopelistlen, tvb, offset, 2, length); + offset += 2; + proto_tree_add_item(srvloc_tree, hf_srvloc_saadvert_scopelist, tvb, offset, length, TRUE); + offset += length; + length = tvb_get_ntohs(tvb, offset); + proto_tree_add_uint(srvloc_tree, hf_srvloc_saadvert_attrlistlen, tvb, offset, 2, length); + offset += 2; + proto_tree_add_item(srvloc_tree, hf_srvloc_saadvert_attrlist, tvb, offset, length, TRUE); + offset += length; + count = tvb_get_guint8(tvb, offset); + proto_tree_add_uint(srvloc_tree, hf_srvloc_saadvert_authcount, tvb, offset, 1, length); + offset += 1; + while (count > 0) { + offset = dissect_authblk_v2(tvb, offset, srvloc_tree); + count--; + } + break; + + default: + proto_tree_add_text(srvloc_tree, tvb, offset, -1, "Unknown Function Type"); + }; + }; + } +} + +static guint +get_srvloc_pdu_len(tvbuff_t *tvb, int offset) +{ + /* + * Get the length of the SRVLOC packet. + * It starts at offset+2, but it's 2 bytes in SLPv1 and 3 bytes + * in SLPv2. + */ + if (tvb_get_guint8(tvb, offset) == 2) + return tvb_get_ntoh24(tvb, offset + 2); + else + return tvb_get_ntohs(tvb, offset + 2); +} + +static void +dissect_srvloc_pdu(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree) +{ + proto_tree *srvloc_tree = NULL; + proto_item *ti; + + if (check_col(pinfo->cinfo, COL_PROTOCOL)) + col_set_str(pinfo->cinfo, COL_PROTOCOL, "SRVLOC"); + + if (check_col(pinfo->cinfo, COL_INFO)) + col_clear(pinfo->cinfo, COL_INFO); + + if (tree) { + ti = proto_tree_add_item(tree, proto_srvloc, tvb, 0, -1, FALSE); + srvloc_tree = proto_item_add_subtree(ti, ett_srvloc); + } + dissect_srvloc(tvb, pinfo, srvloc_tree); +} + +static void +dissect_srvloc_tcp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree) +{ + /* + * XXX - in SLPv1, the fixed length need only be 4, as the length + * is 2 bytes long; however, it must be 5 for SLPv2, as the length + * is 3 bytes long, and there's probably no harm in asking for 5 + * bytes, as even SLPv1 packets start with a 12-byte header, + * and if the packet has a length that's 4 or less, it's bogus, + * and we can't handle a length < 4 anyway. + */ + tcp_dissect_pdus(tvb, pinfo, tree, srvloc_desegment, 5, get_srvloc_pdu_len, + dissect_srvloc_pdu); +} + +/* Register protocol with Ethereal. */ + +void +proto_register_srvloc(void) +{ + static hf_register_info hf[] = { + /* Helper functions for the Version 1 Header*/ + {&hf_srvloc_error, + {"Error Code", "srvloc.err", + FT_UINT16, BASE_DEC, VALS(srvloc_errs), 0x0, + "", HFILL } + }, + + /* Helper function for the Version 2 Header */ + {&hf_srvloc_error_v2, + {"Error Code", "srvloc.errv2", + FT_UINT16, BASE_DEC, VALS(srvloc_errs_v2), 0x0, + "", HFILL } + }, + {&hf_srvloc_xid, + {"XID", "srvloc.xid", + FT_UINT24, BASE_DEC, NULL, 0x0, + "Transaction ID", HFILL } + }, + {&hf_srvloc_langtag, + {"Lang Tag", "srvloc.langtag", + FT_STRING, BASE_NONE, NULL, 0x0, + "", HFILL } + }, + {&hf_srvloc_langtaglen, + {"Lang Tag Len", "srvloc.langtaglen", + FT_UINT16, BASE_DEC, NULL, 0x0, + "", HFILL } + }, + {&hf_srvloc_nextextoff, + {"Next Extension Offset", "srvloc.nextextoff", + FT_UINT24, BASE_DEC, NULL, 0x0, + "", HFILL } + }, + + /* Helper functions for URL and URL Entry parsing - both versions */ + {&hf_srvloc_url_reserved, + {"Reserved", "srvloc.url.reserved", + FT_UINT8, BASE_HEX, NULL, 0x0, "", HFILL } + }, + {&hf_srvloc_url_lifetime, + {"URL lifetime", "srvloc.url.lifetime", + FT_UINT16, BASE_DEC, NULL, 0x0, "", HFILL } + }, + {&hf_srvloc_url_urllen, + {"URL Length", "srvloc.url.urllen", + FT_UINT16, BASE_DEC, NULL, 0x0, "", HFILL } + }, + {&hf_srvloc_url_url, + {"URL", "srvloc.url.url", + FT_STRING, BASE_NONE, NULL, 0x0, "", HFILL } + }, + {&hf_srvloc_url_numauths, + {"Num Auths", "srvloc.url.numauths", + FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL } + }, + + /* Helper functions for the common header fields */ + {&hf_srvloc_function, + {"Function", "srvloc.function", + FT_UINT8, BASE_DEC, VALS(srvloc_functions), 0x0, + "", HFILL } + }, + + {&hf_srvloc_pktlen, + {"Packet Length", "srvloc.pktlen", + FT_UINT24, BASE_DEC, NULL, 0x0, + "", HFILL } + }, + + { &hf_srvloc_version, + { "Version", "srvloc.version", + FT_UINT8, BASE_DEC, NULL, 0x0, + "", HFILL } + }, + + {&hf_srvloc_flags_v1, + {"Flags", "srvloc.flags_v1", + FT_UINT8, BASE_HEX, NULL, 0x0, + "", HFILL } + }, + + { &hf_srvloc_flags_v1_overflow, + { "Overflow", "srvloc.flags_v1.overflow.", FT_BOOLEAN, 8, + TFS(&tfs_srvloc_flags_overflow), FLAG_O, "Can whole packet fit into a datagram?", HFILL }}, + + { &hf_srvloc_flags_v1_monolingual, + { "Monolingual", "srvloc.flags_v1.monolingual", FT_BOOLEAN, 8, + TFS(&tfs_srvloc_flags_v1_monolingual), FLAG_M, "Can whole packet fit into a datagram?", HFILL }}, + + { &hf_srvloc_flags_v1_url_auth, + { "URL Authentication", "srvloc.flags_v1.url_auth", FT_BOOLEAN, 8, + TFS(&tfs_srvloc_flags_v1_url_auth), FLAG_U, "Can whole packet fit into a datagram?", HFILL }}, + + { &hf_srvloc_flags_v1_attribute_auth, + { "Attribute Authentication", "srvloc.flags_v1.attribute_auth", FT_BOOLEAN, 8, + TFS(&tfs_srvloc_flags_v1_attribute_auth), FLAG_A, "Can whole packet fit into a datagram?", HFILL }}, + + { &hf_srvloc_flags_v1_fresh, + { "Fresh Registration", "srvloc.flags_v1.fresh", FT_BOOLEAN, 8, + TFS(&tfs_srvloc_flags_fresh), FLAG_F, "Is this a new registration?", HFILL }}, + + {&hf_srvloc_flags_v2, + {"Flags", "srvloc.flags_v2", + FT_UINT16, BASE_HEX, NULL, 0x0, + "", HFILL } + }, + + { &hf_srvloc_flags_v2_overflow, + { "Overflow", "srvloc.flags_v2.overflow", FT_BOOLEAN, 16, + TFS(&tfs_srvloc_flags_overflow), FLAG_O_V2, "Can whole packet fit into a datagram?", HFILL }}, + + { &hf_srvloc_flags_v2_fresh, + { "Fresh Registration", "srvloc.flags_v2.fresh", FT_BOOLEAN, 16, + TFS(&tfs_srvloc_flags_fresh), FLAG_F_V2, "Is this a new registration?", HFILL }}, + + { &hf_srvloc_flags_v2_reqmulti, + { "Multicast requested", "srvloc.flags_v2.reqmulti", FT_BOOLEAN, 16, + TFS(&tfs_srvloc_flags_v2_reqmulti), FLAG_R_V2, "Do we want multicast?", HFILL }}, + + /* collection of helper functions for dissect_authblk_v2 */ + { &hf_srvloc_authblkv2_bsd, + { "BSD", "srvloc.authblkv2_bsd", FT_UINT16, BASE_HEX, NULL, 0x0, + "Block Structure Descriptor", HFILL} + }, + { &hf_srvloc_authblkv2_len, + { "Length", "srvloc.authblkv2_len", FT_UINT16, BASE_DEC, NULL, 0x0, + "Length of Authentication Block", HFILL} + }, + { &hf_srvloc_authblkv2_timestamp, + { "Timestamp", "srvloc.authblkv2.timestamp", FT_ABSOLUTE_TIME, BASE_NONE, + NULL, 0, "Timestamp on Authentication Block", HFILL } + }, + { &hf_srvloc_authblkv2_slpspilen, + { "SLP SPI Length", "srvloc.authblkv2.slpspilen", FT_UINT16, BASE_DEC, NULL, 0x0, + "Length of the SLP SPI", HFILL} + }, + { &hf_srvloc_authblkv2_slpspi, + { "SLP SPI", "srvloc.authblkv2.slpspi", FT_STRING, BASE_NONE, NULL, 0x0, + "", HFILL} + }, + + /* collection of helper functions for Service Request */ + { &hf_srvloc_srvreq_prlistlen, + { "Previous Response List Length", "srvloc.srvreq.prlistlen", FT_UINT16, BASE_DEC, NULL, 0x0, + "Length of Previous Response List", HFILL} + }, + { &hf_srvloc_srvreq_prlist, + { "Previous Response List", "srvloc.srvreq.prlist", FT_STRING, BASE_NONE, NULL, 0x0, + "Previous Response List", HFILL} + }, + { &hf_srvloc_srvreq_srvtypelen, + { "Service Type Length", "srvloc.srvreq.srvtypelen", FT_UINT16, BASE_DEC, NULL, 0x0, + "Length of Service Type List", HFILL} + }, + { &hf_srvloc_srvreq_srvtypelist, + { "Service Type List", "srvloc.srvreq.srvtypelist", FT_STRING, BASE_NONE, NULL, 0x0, + "", HFILL} + }, + { &hf_srvloc_srvreq_scopelistlen, + { "Scope List Length", "srvloc.srvreq.scopelistlen", FT_UINT16, BASE_DEC, NULL, 0x0, + "Length of the Scope List", HFILL} + }, + { &hf_srvloc_srvreq_scopelist, + { "Scope List", "srvloc.srvreq.scopelist", FT_STRING, BASE_NONE, NULL, 0x0, + "", HFILL} + }, + { &hf_srvloc_srvreq_predicatelen, + { "Predicate Length", "srvloc.srvreq.predicatelen", FT_UINT16, BASE_DEC, NULL, 0x0, + "Length of the Predicate", HFILL} + }, + { &hf_srvloc_srvreq_predicate, + { "Predicate", "srvloc.srvreq.predicate", FT_STRING, BASE_NONE, NULL, 0x0, + "", HFILL} + }, + { &hf_srvloc_srvreq_slpspilen, + { "SLP SPI Length", "srvloc.srvreq.slpspilen", FT_UINT16, BASE_DEC, NULL, 0x0, + "Length of the SLP SPI", HFILL} + }, + { &hf_srvloc_srvreq_slpspi, + { "SLP SPI", "srvloc.srvreq.slpspi", FT_STRING, BASE_NONE, NULL, 0x0, + "", HFILL} + }, + + /* Helper function for Service Request */ + { &hf_srvloc_srvrply_urlcount, + { "Number of URLs", "srvloc.srvreq.urlcount", FT_UINT16, BASE_DEC, NULL, 0x0, + "", HFILL} + }, + + /* Helper functions for Service Registration */ + { &hf_srvloc_srvreg_srvtypelen, + { "Service Type Length", "srvloc.srvreq.srvtypelen", FT_UINT16, BASE_DEC, NULL, 0x0, + "", HFILL} + }, + { &hf_srvloc_srvreg_srvtype, + { "Service Type", "srvloc.srvreq.srvtype", FT_STRING, BASE_NONE, NULL, 0x0, + "", HFILL} + }, + { &hf_srvloc_srvreg_scopelistlen, + { "Scope List Length", "srvloc.srvreq.scopelistlen", FT_UINT16, BASE_DEC, NULL, 0x0, + "", HFILL} + }, + { &hf_srvloc_srvreg_scopelist, + { "Scope List", "srvloc.srvreq.scopelist", FT_STRING, BASE_NONE, NULL, 0x0, + "", HFILL} + }, + { &hf_srvloc_srvreg_attrlistlen, + { "Attribute List Length", "srvloc.srvreq.attrlistlen", FT_UINT16, BASE_DEC, NULL, 0x0, + "", HFILL} + }, + { &hf_srvloc_srvreg_attrlist, + { "Attribute List", "srvloc.srvreq.attrlist", FT_STRING, BASE_NONE, NULL, 0x0, + "", HFILL} + }, + { &hf_srvloc_srvreg_attrauthcount, + { "Attr Auths", "srvloc.srvreq.attrauthcount", FT_UINT8, BASE_DEC, NULL, 0x0, + "Number of Attribute Authentication Blocks", HFILL} + }, + + /* Helper functions for Service Deregistration */ + { &hf_srvloc_srvdereg_scopelistlen, + { "Scope List Length", "srvloc.srvdereq.scopelistlen", FT_UINT16, BASE_DEC, NULL, 0x0, + "", HFILL} + }, + { &hf_srvloc_srvdereg_scopelist, + { "Scope List", "srvloc.srvdereq.scopelist", FT_STRING, BASE_NONE, NULL, 0x0, + "", HFILL} + }, + { &hf_srvloc_srvdereg_taglistlen, + { "Tag List Length", "srvloc.srvdereq.taglistlen", FT_UINT16, BASE_DEC, NULL, 0x0, + "", HFILL} + }, + { &hf_srvloc_srvdereg_taglist, + { "Tag List", "srvloc.srvdereq.taglist", FT_STRING, BASE_NONE, NULL, 0x0, + "", HFILL} + }, + + + /* collection of helper functions for Attribute Request */ + { &hf_srvloc_attrreq_prlistlen, + { "Previous Response List Length", "srvloc.attrreq.prlistlen", FT_UINT16, BASE_DEC, NULL, 0x0, + "Length of Previous Response List", HFILL} + }, + { &hf_srvloc_attrreq_prlist, + { "Previous Response List", "srvloc.attrreq.prlist", FT_STRING, BASE_NONE, NULL, 0x0, + "Previous Response List", HFILL} + }, + { &hf_srvloc_attrreq_urllen, + { "URL Length", "srvloc.attrreq.urllen", FT_UINT16, BASE_DEC, NULL, 0x0, + "", HFILL} + }, + { &hf_srvloc_attrreq_url, + { "Service URL", "srvloc.attrreq.url", FT_STRING, BASE_NONE, NULL, 0x0, + "URL of service", HFILL} + }, + { &hf_srvloc_attrreq_scopelistlen, + { "Scope List Length", "srvloc.attrreq.scopelistlen", FT_UINT16, BASE_DEC, NULL, 0x0, + "Length of the Scope List", HFILL} + }, + { &hf_srvloc_attrreq_scopelist, + { "Scope List", "srvloc.attrreq.scopelist", FT_STRING, BASE_NONE, NULL, 0x0, + "", HFILL} + }, + { &hf_srvloc_attrreq_attrlistlen, + { "Attribute List Length", "srvloc.attrreq.attrlistlen", FT_UINT16, BASE_DEC, NULL, 0x0, + "", HFILL} + }, + { &hf_srvloc_attrreq_attrlist, + { "Attribute List", "srvloc.attrreq.attrlist", FT_STRING, BASE_NONE, NULL, 0x0, + "", HFILL} + }, + { &hf_srvloc_attrreq_taglistlen, + { "Tag List Length", "srvloc.attrreq.taglistlen", FT_UINT16, BASE_DEC, NULL, 0x0, + "", HFILL} + }, + { &hf_srvloc_attrreq_taglist, + { "Tag List", "srvloc.attrreq.taglist", FT_STRING, BASE_NONE, NULL, 0x0, + "", HFILL} + }, + { &hf_srvloc_attrreq_slpspilen, + { "SLP SPI Length", "srvloc.attrreq.slpspilen", FT_UINT16, BASE_DEC, NULL, 0x0, + "Length of the SLP SPI", HFILL} + }, + { &hf_srvloc_attrreq_slpspi, + { "SLP SPI", "srvloc.attrreq.slpspi", FT_STRING, BASE_NONE, NULL, 0x0, + "", HFILL} + }, + + /* collection of helper functions for Attribute Reply */ + { &hf_srvloc_attrrply_attrlistlen, + { "Attribute List Length", "srvloc.attrrply.attrlistlen", FT_UINT16, BASE_DEC, NULL, 0x0, + "Length of Attribute List", HFILL} + }, + { &hf_srvloc_attrrply_attrlist, + { "Attribute List", "srvloc.attrrply.attrlist", FT_STRING, BASE_NONE, NULL, 0x0, + "", HFILL} + }, + { &hf_srvloc_attrrply_attrauthcount, + { "Attr Auths", "srvloc.srvreq.attrauthcount", FT_UINT8, BASE_DEC, NULL, 0x0, + "Number of Attribute Authentication Blocks", HFILL} + }, + + /* collection of helper functions for DA Advertisement */ + { &hf_srvloc_daadvert_timestamp, + { "DAADVERT Timestamp", "srvloc.daadvert.timestamp", FT_ABSOLUTE_TIME, BASE_NONE, + NULL, 0, "Timestamp on DA Advert", HFILL } + }, + { &hf_srvloc_daadvert_urllen, + { "URL Length", "srvloc.daadvert.urllen", FT_UINT16, BASE_DEC, NULL, 0x0, + "", HFILL} + }, + { &hf_srvloc_daadvert_url, + { "URL", "srvloc.daadvert.url", FT_STRING, BASE_NONE, NULL, 0x0, + "", HFILL} + }, + { &hf_srvloc_daadvert_scopelistlen, + { "Scope List Length", "srvloc.daadvert.scopelistlen", FT_UINT16, BASE_DEC, NULL, 0x0, + "Length of the Scope List", HFILL} + }, + { &hf_srvloc_daadvert_scopelist, + { "Scope List", "srvloc.daadvert.scopelist", FT_STRING, BASE_NONE, NULL, 0x0, + "", HFILL} + }, + { &hf_srvloc_daadvert_attrlistlen, + { "Attribute List Length", "srvloc.daadvert.attrlistlen", FT_UINT16, BASE_DEC, NULL, 0x0, + "", HFILL} + }, + { &hf_srvloc_daadvert_attrlist, + { "Attribute List", "srvloc.daadvert.attrlist", FT_STRING, BASE_NONE, NULL, 0x0, + "", HFILL} + }, + { &hf_srvloc_daadvert_slpspilen, + { "SLP SPI Length", "srvloc.daadvert.slpspilen", FT_UINT16, BASE_DEC, NULL, 0x0, + "Length of the SLP SPI", HFILL} + }, + { &hf_srvloc_daadvert_slpspi, + { "SLP SPI", "srvloc.daadvert.slpspi", FT_STRING, BASE_NONE, NULL, 0x0, + "", HFILL} + }, + { &hf_srvloc_daadvert_authcount, + { "Auths", "srvloc.daadvert.authcount", FT_UINT8, BASE_DEC, NULL, 0x0, + "Number of Authentication Blocks", HFILL} + }, + + /* collection of helper functions for Service Type Request */ + { &hf_srvloc_srvtypereq_prlistlen, + { "Previous Response List Length", "srvloc.srvtypereq.prlistlen", FT_UINT16, BASE_DEC, NULL, 0x0, + "Length of Previous Response List", HFILL} + }, + { &hf_srvloc_srvtypereq_prlist, + { "Previous Response List", "srvloc.srvtypereq.prlist", FT_STRING, BASE_NONE, NULL, 0x0, + "Previous Response List", HFILL} + }, + { &hf_srvloc_srvtypereq_nameauthlistlen, + { "Naming Authority List Length", "srvloc.srvtypereq.nameauthlistlen", FT_UINT16, BASE_DEC, NULL, 0x0, + "Length of the Naming Authority List", HFILL} + }, + { &hf_srvloc_srvtypereq_nameauthlistlenall, + { "Naming Authority List Length (All Naming Authorities)", "srvloc.srvtypereq.nameauthlistlen", FT_UINT16, BASE_DEC, NULL, 0x0, + "Length of the Naming Authority List", HFILL} + }, + { &hf_srvloc_srvtypereq_nameauthlist, + { "Naming Authority List", "srvloc.srvtypereq.nameauthlist", FT_STRING, BASE_NONE, NULL, 0x0, + "", HFILL} + }, + { &hf_srvloc_srvtypereq_scopelistlen, + { "Scope List Length", "srvloc.srvtypereq.scopelistlen", FT_UINT16, BASE_DEC, NULL, 0x0, + "Length of the Scope List", HFILL} + }, + { &hf_srvloc_srvtypereq_scopelist, + { "Scope List", "srvloc.srvtypereq.scopelist", FT_STRING, BASE_NONE, NULL, 0x0, + "", HFILL} + }, + + /* collection of helper functions for Service Type Replies */ + { &hf_srvloc_srvtyperply_srvtypelen, + { "Service Type Length", "srvloc.srvtypereq.srvtypelen", FT_UINT16, BASE_DEC, NULL, 0x0, + "Length of the Service Type", HFILL} + }, + { &hf_srvloc_srvtyperply_srvtype, + { "Service Type", "srvloc.srvtyperply.srvtype", FT_STRING, BASE_NONE, NULL, 0x0, + "", HFILL} + }, + { &hf_srvloc_srvtyperply_srvtypelistlen, + { "Service Type List Length", "srvloc.srvtypereq.srvtypelistlen", FT_UINT16, BASE_DEC, NULL, 0x0, + "Length of the Service Type List", HFILL} + }, + { &hf_srvloc_srvtyperply_srvtypelist, + { "Service Type List", "srvloc.srvtyperply.srvtypelist", FT_STRING, BASE_NONE, NULL, 0x0, + "", HFILL} + }, + + /* collection of helper functions for SA Advertisement */ + { &hf_srvloc_saadvert_urllen, + { "URL Length", "srvloc.saadvert.urllen", FT_UINT16, BASE_DEC, NULL, 0x0, + "", HFILL} + }, + { &hf_srvloc_saadvert_url, + { "URL", "srvloc.saadvert.url", FT_STRING, BASE_NONE, NULL, 0x0, + "", HFILL} + }, + { &hf_srvloc_saadvert_scopelistlen, + { "Scope List Length", "srvloc.saadvert.scopelistlen", FT_UINT16, BASE_DEC, NULL, 0x0, + "Length of the Scope List", HFILL} + }, + { &hf_srvloc_saadvert_scopelist, + { "Scope List", "srvloc.saadvert.scopelist", FT_STRING, BASE_NONE, NULL, 0x0, + "", HFILL} + }, + { &hf_srvloc_saadvert_attrlistlen, + { "Attribute List Length", "srvloc.saadvert.attrlistlen", FT_UINT16, BASE_DEC, NULL, 0x0, + "", HFILL} + }, + { &hf_srvloc_saadvert_attrlist, + { "Attribute List", "srvloc.saadvert.attrlist", FT_STRING, BASE_NONE, NULL, 0x0, + "", HFILL} + }, + { &hf_srvloc_saadvert_authcount, + { "Auths", "srvloc.saadvert.authcount", FT_UINT8, BASE_DEC, NULL, 0x0, + "Number of Authentication Blocks", HFILL} + }, + { &hf_srvloc_add_ref_ip, + { "IP Address", "srvloc.list.ipaddr", FT_IPv4, BASE_DEC, NULL, 0x0, + "IP Address of SLP server", HFILL} + } + }; + + static gint *ett[] = { + &ett_srvloc, + &ett_srvloc_flags, + }; + module_t *srvloc_module; + + proto_srvloc = proto_register_protocol("Service Location Protocol", + "SRVLOC", "srvloc"); + proto_register_field_array(proto_srvloc, hf, array_length(hf)); + proto_register_subtree_array(ett, array_length(ett)); + srvloc_module = prefs_register_protocol(proto_srvloc, NULL); + prefs_register_bool_preference(srvloc_module, "desegment_tcp", + "Desegment all SRVLOC messages spanning multiple TCP segments", + "Whether the SRVLOC dissector should desegment all messages spanning multiple TCP segments", + &srvloc_desegment); +} + +void +proto_reg_handoff_srvloc(void) +{ + dissector_handle_t srvloc_handle, srvloc_tcp_handle; + srvloc_handle = create_dissector_handle(dissect_srvloc, proto_srvloc); + dissector_add("udp.port", UDP_PORT_SRVLOC, srvloc_handle); + srvloc_tcp_handle = create_dissector_handle(dissect_srvloc_tcp, + proto_srvloc); + dissector_add("tcp.port", TCP_PORT_SRVLOC, srvloc_tcp_handle); +} |