/* packet-sna.c
* Routines for SNA
* Gilbert Ramirez <gram@alumni.rice.edu>
+ * Jochen Friedrich <jochen@scram.de>
*
- * $Id: packet-sna.c,v 1.33 2001/11/15 21:11:01 gram Exp $
+ * $Id: packet-sna.c,v 1.51 2004/02/27 09:02:36 guy Exp $
*
* Ethereal - Network traffic analyzer
* By Gerald Combs <gerald@ethereal.com>
* Copyright 1998 Gerald Combs
- *
+ *
* 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.
# include "config.h"
#endif
-#ifdef HAVE_SYS_TYPES_H
-# include <sys/types.h>
-#endif
-
#include <glib.h>
-#include "packet.h"
+#include <epan/packet.h>
#include "llcsaps.h"
-#include "sna-utils.h"
+#include "ppptypes.h"
+#include <epan/sna-utils.h>
+#include "prefs.h"
+#include "reassemble.h"
+#include "util.h"
/*
* http://www.wanresources.com/snacell.html
+ * ftp://ftp.software.ibm.com/networking/pub/standards/aiw/formats/
*
*/
static int proto_sna = -1;
+static int proto_sna_xid = -1;
static int hf_sna_th = -1;
static int hf_sna_th_0 = -1;
static int hf_sna_th_fid = -1;
static int hf_sna_th_cmd_type = -1;
static int hf_sna_th_cmd_sn = -1;
+static int hf_sna_nlp_nhdr = -1;
+static int hf_sna_nlp_nhdr_0 = -1;
+static int hf_sna_nlp_sm = -1;
+static int hf_sna_nlp_tpf = -1;
+static int hf_sna_nlp_nhdr_1 = -1;
+static int hf_sna_nlp_ft = -1;
+static int hf_sna_nlp_tspi = -1;
+static int hf_sna_nlp_slowdn1 = -1;
+static int hf_sna_nlp_slowdn2 = -1;
+static int hf_sna_nlp_fra = -1;
+static int hf_sna_nlp_anr = -1;
+static int hf_sna_nlp_frh = -1;
+static int hf_sna_nlp_thdr = -1;
+static int hf_sna_nlp_tcid = -1;
+static int hf_sna_nlp_thdr_8 = -1;
+static int hf_sna_nlp_setupi = -1;
+static int hf_sna_nlp_somi = -1;
+static int hf_sna_nlp_eomi = -1;
+static int hf_sna_nlp_sri = -1;
+static int hf_sna_nlp_rasapi = -1;
+static int hf_sna_nlp_retryi = -1;
+static int hf_sna_nlp_thdr_9 = -1;
+static int hf_sna_nlp_lmi = -1;
+static int hf_sna_nlp_cqfi = -1;
+static int hf_sna_nlp_osi = -1;
+static int hf_sna_nlp_offset = -1;
+static int hf_sna_nlp_dlf = -1;
+static int hf_sna_nlp_bsn = -1;
+static int hf_sna_nlp_opti_len = -1;
+static int hf_sna_nlp_opti_type = -1;
+static int hf_sna_nlp_opti_0d_version = -1;
+static int hf_sna_nlp_opti_0d_4 = -1;
+static int hf_sna_nlp_opti_0d_target = -1;
+static int hf_sna_nlp_opti_0d_arb = -1;
+static int hf_sna_nlp_opti_0d_reliable = -1;
+static int hf_sna_nlp_opti_0d_dedicated = -1;
+static int hf_sna_nlp_opti_0e_stat = -1;
+static int hf_sna_nlp_opti_0e_gap = -1;
+static int hf_sna_nlp_opti_0e_idle = -1;
+static int hf_sna_nlp_opti_0e_nabsp = -1;
+static int hf_sna_nlp_opti_0e_sync = -1;
+static int hf_sna_nlp_opti_0e_echo = -1;
+static int hf_sna_nlp_opti_0e_rseq = -1;
+static int hf_sna_nlp_opti_0e_abspbeg = -1;
+static int hf_sna_nlp_opti_0e_abspend = -1;
+static int hf_sna_nlp_opti_0f_bits = -1;
+static int hf_sna_nlp_opti_10_tcid = -1;
+static int hf_sna_nlp_opti_12_sense = -1;
+static int hf_sna_nlp_opti_14_si_len = -1;
+static int hf_sna_nlp_opti_14_si_key = -1;
+static int hf_sna_nlp_opti_14_si_2 = -1;
+static int hf_sna_nlp_opti_14_si_refifo = -1;
+static int hf_sna_nlp_opti_14_si_mobility = -1;
+static int hf_sna_nlp_opti_14_si_dirsearch = -1;
+static int hf_sna_nlp_opti_14_si_limitres = -1;
+static int hf_sna_nlp_opti_14_si_ncescope = -1;
+static int hf_sna_nlp_opti_14_si_mnpsrscv = -1;
+static int hf_sna_nlp_opti_14_si_maxpsize = -1;
+static int hf_sna_nlp_opti_14_si_switch = -1;
+static int hf_sna_nlp_opti_14_si_alive = -1;
+static int hf_sna_nlp_opti_14_rr_len = -1;
+static int hf_sna_nlp_opti_14_rr_key = -1;
+static int hf_sna_nlp_opti_14_rr_2 = -1;
+static int hf_sna_nlp_opti_14_rr_bfe = -1;
+static int hf_sna_nlp_opti_14_rr_num = -1;
+static int hf_sna_nlp_opti_22_2 = -1;
+static int hf_sna_nlp_opti_22_type = -1;
+static int hf_sna_nlp_opti_22_raa = -1;
+static int hf_sna_nlp_opti_22_parity = -1;
+static int hf_sna_nlp_opti_22_arb = -1;
+static int hf_sna_nlp_opti_22_3 = -1;
+static int hf_sna_nlp_opti_22_ratereq = -1;
+static int hf_sna_nlp_opti_22_raterep = -1;
+static int hf_sna_nlp_opti_22_field1 = -1;
+static int hf_sna_nlp_opti_22_field2 = -1;
+static int hf_sna_nlp_opti_22_field3 = -1;
+static int hf_sna_nlp_opti_22_field4 = -1;
+
static int hf_sna_rh = -1;
static int hf_sna_rh_0 = -1;
static int hf_sna_rh_1 = -1;
static int hf_sna_rh_cebi = -1;
/*static int hf_sna_ru = -1;*/
+static int hf_sna_gds = -1;
+static int hf_sna_gds_len = -1;
+static int hf_sna_gds_type = -1;
+static int hf_sna_gds_cont = -1;
+
+static int hf_sna_xid = -1;
+static int hf_sna_xid_0 = -1;
+static int hf_sna_xid_id = -1;
+static int hf_sna_xid_format = -1;
+static int hf_sna_xid_type = -1;
+static int hf_sna_xid_len = -1;
+static int hf_sna_xid_idblock = -1;
+static int hf_sna_xid_idnum = -1;
+static int hf_sna_xid_3_8 = -1;
+static int hf_sna_xid_3_init_self = -1;
+static int hf_sna_xid_3_stand_bind = -1;
+static int hf_sna_xid_3_gener_bind = -1;
+static int hf_sna_xid_3_recve_bind = -1;
+static int hf_sna_xid_3_actpu = -1;
+static int hf_sna_xid_3_nwnode = -1;
+static int hf_sna_xid_3_cp = -1;
+static int hf_sna_xid_3_cpcp = -1;
+static int hf_sna_xid_3_state = -1;
+static int hf_sna_xid_3_nonact = -1;
+static int hf_sna_xid_3_cpchange = -1;
+static int hf_sna_xid_3_10 = -1;
+static int hf_sna_xid_3_asend_bind = -1;
+static int hf_sna_xid_3_arecv_bind = -1;
+static int hf_sna_xid_3_quiesce = -1;
+static int hf_sna_xid_3_pucap = -1;
+static int hf_sna_xid_3_pbn = -1;
+static int hf_sna_xid_3_pacing = -1;
+static int hf_sna_xid_3_11 = -1;
+static int hf_sna_xid_3_tgshare = -1;
+static int hf_sna_xid_3_dedsvc = -1;
+static int hf_sna_xid_3_12 = -1;
+static int hf_sna_xid_3_negcsup = -1;
+static int hf_sna_xid_3_negcomp = -1;
+static int hf_sna_xid_3_15 = -1;
+static int hf_sna_xid_3_partg = -1;
+static int hf_sna_xid_3_dlur = -1;
+static int hf_sna_xid_3_dlus = -1;
+static int hf_sna_xid_3_exbn = -1;
+static int hf_sna_xid_3_genodai = -1;
+static int hf_sna_xid_3_branch = -1;
+static int hf_sna_xid_3_brnn = -1;
+static int hf_sna_xid_3_tg = -1;
+static int hf_sna_xid_3_dlc = -1;
+static int hf_sna_xid_3_dlen = -1;
+
+static int hf_sna_control_len = -1;
+static int hf_sna_control_key = -1;
+static int hf_sna_control_hprkey = -1;
+static int hf_sna_control_05_delay = -1;
+static int hf_sna_control_05_type = -1;
+static int hf_sna_control_05_ptp = -1;
+static int hf_sna_control_0e_type = -1;
+static int hf_sna_control_0e_value = -1;
+
static gint ett_sna = -1;
static gint ett_sna_th = -1;
static gint ett_sna_th_fid = -1;
+static gint ett_sna_nlp_nhdr = -1;
+static gint ett_sna_nlp_nhdr_0 = -1;
+static gint ett_sna_nlp_nhdr_1 = -1;
+static gint ett_sna_nlp_thdr = -1;
+static gint ett_sna_nlp_thdr_8 = -1;
+static gint ett_sna_nlp_thdr_9 = -1;
+static gint ett_sna_nlp_opti_un = -1;
+static gint ett_sna_nlp_opti_0d = -1;
+static gint ett_sna_nlp_opti_0d_4 = -1;
+static gint ett_sna_nlp_opti_0e = -1;
+static gint ett_sna_nlp_opti_0e_stat = -1;
+static gint ett_sna_nlp_opti_0e_absp = -1;
+static gint ett_sna_nlp_opti_0f = -1;
+static gint ett_sna_nlp_opti_10 = -1;
+static gint ett_sna_nlp_opti_12 = -1;
+static gint ett_sna_nlp_opti_14 = -1;
+static gint ett_sna_nlp_opti_14_si = -1;
+static gint ett_sna_nlp_opti_14_si_2 = -1;
+static gint ett_sna_nlp_opti_14_rr = -1;
+static gint ett_sna_nlp_opti_14_rr_2 = -1;
+static gint ett_sna_nlp_opti_22 = -1;
+static gint ett_sna_nlp_opti_22_2 = -1;
+static gint ett_sna_nlp_opti_22_3 = -1;
static gint ett_sna_rh = -1;
static gint ett_sna_rh_0 = -1;
static gint ett_sna_rh_1 = -1;
static gint ett_sna_rh_2 = -1;
+static gint ett_sna_gds = -1;
+static gint ett_sna_xid_0 = -1;
+static gint ett_sna_xid_id = -1;
+static gint ett_sna_xid_3_8 = -1;
+static gint ett_sna_xid_3_10 = -1;
+static gint ett_sna_xid_3_11 = -1;
+static gint ett_sna_xid_3_12 = -1;
+static gint ett_sna_xid_3_15 = -1;
+static gint ett_sna_control_un = -1;
+static gint ett_sna_control_05 = -1;
+static gint ett_sna_control_05hpr = -1;
+static gint ett_sna_control_05hpr_type = -1;
+static gint ett_sna_control_0e = -1;
+
+static dissector_handle_t data_handle;
+
+/* Defragment fragmented SNA BIUs*/
+static gboolean sna_defragment = FALSE;
+static GHashTable *sna_fragment_table = NULL;
+static GHashTable *sna_reassembled_table = NULL;
/* Format Identifier */
static const value_string sna_th_fid_vals[] = {
{ 0x3, "Subarea Node or SNA host <--> Subarea Node" },
{ 0x4, "Subarea Nodes, supporting ER and VR" },
{ 0x5, "HPR RTP endpoint nodes" },
+ { 0xa, "HPR NLP Frame Routing" },
+ { 0xb, "HPR NLP Frame Routing" },
+ { 0xc, "HPR NLP Automatic Network Routing" },
+ { 0xd, "HPR NLP Automatic Network Routing" },
{ 0xf, "Adjaced Subarea Nodes, supporting ER and VR" },
{ 0x0, NULL }
};
/* Mapping Field */
+#define MPF_MIDDLE_SEGMENT 0
+#define MPF_LAST_SEGMENT 1
+#define MPF_FIRST_SEGMENT 2
+#define MPF_WHOLE_BIU 3
+
static const value_string sna_th_mpf_vals[] = {
- { 0, "Middle segment of a BIU" },
- { 1, "Last segment of a BIU" },
- { 2, "First segment of a BIU" },
- { 3 , "Whole BIU" },
+ { MPF_MIDDLE_SEGMENT, "Middle segment of a BIU" },
+ { MPF_LAST_SEGMENT, "Last segment of a BIU" },
+ { MPF_FIRST_SEGMENT, "First segment of a BIU" },
+ { MPF_WHOLE_BIU, "Whole BIU" },
{ 0, NULL }
};
static const true_false_string sna_rh_rti_truth =
{ "Negative", "Positive" };
-/* Exception Response Indicator */
-static const true_false_string sna_rh_eri_truth =
- { "Exception", "Definite" };
-
/* Queued Response Indicator */
static const true_false_string sna_rh_qri_truth =
{ "Enqueue response in TC queues", "Response bypasses TC queues" };
/* ER_VR_SUPP_IND */
static const value_string sna_th_er_vr_supp_ind_vals[] = {
{ 0, "Each node supports ER and VR protocols" },
- { 1, "Includes at least one node that does not support ER and VR protocols" },
+ { 1, "Includes at least one node that does not support ER and VR"
+ " protocols" },
{ 0x0, NULL }
};
{ 0, "Low Priority" },
{ 1, "Medium Priority" },
{ 2, "High Priority" },
+ { 3, "Network Priority" },
{ 0x0, NULL }
};
"Do not reset window size",
};
-static int dissect_fid0_1 (tvbuff_t*, packet_info*, proto_tree*);
-static int dissect_fid2 (tvbuff_t*, packet_info*, proto_tree*);
-static int dissect_fid3 (tvbuff_t*, proto_tree*);
-static int dissect_fid4 (tvbuff_t*, packet_info*, proto_tree*);
-static int dissect_fid5 (tvbuff_t*, proto_tree*);
-static int dissect_fidf (tvbuff_t*, proto_tree*);
+/* Switching Mode */
+static const value_string sna_nlp_sm_vals[] = {
+ { 5, "Function routing" },
+ { 6, "Automatic network routing" },
+ { 0x0, NULL }
+};
+
+static const true_false_string sna_nlp_tspi_truth =
+ { "Time sensitive", "Not time sensitive" };
+
+static const true_false_string sna_nlp_slowdn1_truth =
+ { "Minor congestion", "No minor congestion" };
+
+static const true_false_string sna_nlp_slowdn2_truth =
+ { "Major congestion", "No major congestion" };
+
+/* Function Type */
+static const value_string sna_nlp_ft_vals[] = {
+ { 0x10, "LDLC" },
+ { 0x0, NULL }
+};
+
+static const value_string sna_nlp_frh_vals[] = {
+ { 0x03, "XID complete request" },
+ { 0x04, "XID complete response" },
+ { 0x0, NULL }
+};
+
+static const true_false_string sna_nlp_setupi_truth =
+ { "Connection setup segment present", "Connection setup segment not"
+ " present" };
+
+static const true_false_string sna_nlp_somi_truth =
+ { "Start of message", "Not start of message" };
+
+static const true_false_string sna_nlp_eomi_truth =
+ { "End of message", "Not end of message" };
+
+static const true_false_string sna_nlp_sri_truth =
+ { "Status requested", "No status requested" };
+
+static const true_false_string sna_nlp_rasapi_truth =
+ { "Reply as soon as possible", "No need to reply as soon as possible" };
+
+static const true_false_string sna_nlp_retryi_truth =
+ { "Undefined", "Sender will retransmit" };
+
+static const true_false_string sna_nlp_lmi_truth =
+ { "Last message", "Not last message" };
+
+static const true_false_string sna_nlp_cqfi_truth =
+ { "CQFI included", "CQFI not included" };
+
+static const true_false_string sna_nlp_osi_truth =
+ { "Optional segments present", "No optional segments present" };
+
+static const value_string sna_xid_3_state_vals[] = {
+ { 0x00, "Exchange state indicators not supported" },
+ { 0x01, "Negotiation-proceeding exchange" },
+ { 0x02, "Prenegotiation exchange" },
+ { 0x03, "Nonactivation exchange" },
+ { 0x0, NULL }
+};
+
+static const value_string sna_xid_3_branch_vals[] = {
+ { 0x00, "Sender does not support branch extender" },
+ { 0x01, "TG is branch uplink" },
+ { 0x02, "TG is branch downlink" },
+ { 0x03, "TG is neither uplink nor downlink" },
+ { 0x0, NULL }
+};
+
+static const value_string sna_xid_type_vals[] = {
+ { 0x01, "T1 node" },
+ { 0x02, "T2.0 or T2.1 node" },
+ { 0x03, "Reserved" },
+ { 0x04, "T4 or T5 node" },
+ { 0x0, NULL }
+};
+
+static const value_string sna_nlp_opti_vals[] = {
+ { 0x0d, "Connection Setup Segment" },
+ { 0x0e, "Status Segment" },
+ { 0x0f, "Client Out Of Band Bits Segment" },
+ { 0x10, "Connection Identifier Exchange Segment" },
+ { 0x12, "Connection Fault Segment" },
+ { 0x14, "Switching Information Segment" },
+ { 0x22, "Adaptive Rate-Based Segment" },
+ { 0x0, NULL }
+};
+
+static const value_string sna_nlp_opti_0d_version_vals[] = {
+ { 0x0101, "Version 1.1" },
+ { 0x0, NULL }
+};
+
+static const value_string sna_nlp_opti_0f_bits_vals[] = {
+ { 0x0001, "Request Deactivation" },
+ { 0x8000, "Reply - OK" },
+ { 0x8004, "Reply - Reject" },
+ { 0x0, NULL }
+};
+
+static const value_string sna_nlp_opti_22_type_vals[] = {
+ { 0x00, "Setup" },
+ { 0x01, "Rate Reply" },
+ { 0x02, "Rate Request" },
+ { 0x03, "Rate Request/Rate Reply" },
+ { 0x0, NULL }
+};
+
+static const value_string sna_nlp_opti_22_raa_vals[] = {
+ { 0x00, "Normal" },
+ { 0x01, "Restraint" },
+ { 0x02, "Slowdown1" },
+ { 0x03, "Slowdown2" },
+ { 0x04, "Critical" },
+ { 0x0, NULL }
+};
+
+static const value_string sna_nlp_opti_22_arb_vals[] = {
+ { 0x00, "Base Mode ARB" },
+ { 0x01, "Responsive Mode ARB" },
+ { 0x0, NULL }
+};
+
+/* GDS Variable Type */
+static const value_string sna_gds_var_vals[] = {
+ { 0x1210, "Change Number Of Sessions" },
+ { 0x1211, "Exchange Log Name" },
+ { 0x1212, "Control Point Management Services Unit" },
+ { 0x1213, "Compare States" },
+ { 0x1214, "LU Names Position" },
+ { 0x1215, "LU Name" },
+ { 0x1217, "Do Know" },
+ { 0x1218, "Partner Restart" },
+ { 0x1219, "Don't Know" },
+ { 0x1220, "Sign-Off" },
+ { 0x1221, "Sign-On" },
+ { 0x1222, "SNMP-over-SNA" },
+ { 0x1223, "Node Address Service" },
+ { 0x12C1, "CP Capabilities" },
+ { 0x12C2, "Topology Database Update" },
+ { 0x12C3, "Register Resource" },
+ { 0x12C4, "Locate" },
+ { 0x12C5, "Cross-Domain Initiate" },
+ { 0x12C9, "Delete Resource" },
+ { 0x12CA, "Find Resource" },
+ { 0x12CB, "Found Resource" },
+ { 0x12CC, "Notify" },
+ { 0x12CD, "Initiate-Other Cross-Domain" },
+ { 0x12CE, "Route Setup" },
+ { 0x12E1, "Error Log" },
+ { 0x12F1, "Null Data" },
+ { 0x12F2, "User Control Date" },
+ { 0x12F3, "Map Name" },
+ { 0x12F4, "Error Data" },
+ { 0x12F6, "Authentication Token Data" },
+ { 0x12F8, "Service Flow Authentication Token Data" },
+ { 0x12FF, "Application Data" },
+ { 0x1310, "MDS Message Unit" },
+ { 0x1311, "MDS Routing Information" },
+ { 0x1500, "FID2 Encapsulation" },
+ { 0x0, NULL }
+};
+
+/* Control Vector Type */
+static const value_string sna_control_vals[] = {
+ { 0x00, "SSCP-LU Session Capabilities Control Vector" },
+ { 0x01, "Date-Time Control Vector" },
+ { 0x02, "Subarea Routing Control Vector" },
+ { 0x03, "SDLC Secondary Station Control Vector" },
+ { 0x04, "LU Control Vector" },
+ { 0x05, "Channel Control Vector" },
+ { 0x06, "Cross-Domain Resource Manager (CDRM) Control Vector" },
+ { 0x07, "PU FMD-RU-Usage Control Vector" },
+ { 0x08, "Intensive Mode Control Vector" },
+ { 0x09, "Activation Request / Response Sequence Identifier Control"
+ " Vector" },
+ { 0x0a, "User Request Correlator Control Vector" },
+ { 0x0b, "SSCP-PU Session Capabilities Control Vector" },
+ { 0x0c, "LU-LU Session Capabilities Control Vector" },
+ { 0x0d, "Mode / Class-of-Service / Virtual-Route-Identifier List"
+ " Control Vector" },
+ { 0x0e, "Network Name Control Vector" },
+ { 0x0f, "Link Capabilities and Status Control Vector" },
+ { 0x10, "Product Set ID Control Vector" },
+ { 0x11, "Load Module Correlation Control Vector" },
+ { 0x12, "Network Identifier Control Vector" },
+ { 0x13, "Gateway Support Capabilities Control Vector" },
+ { 0x14, "Session Initiation Control Vector" },
+ { 0x15, "Network-Qualified Address Pair Control Vector" },
+ { 0x16, "Names Substitution Control Vector" },
+ { 0x17, "SSCP Identifier Control Vector" },
+ { 0x18, "SSCP Name Control Vector" },
+ { 0x19, "Resource Identifier Control Vector" },
+ { 0x1a, "NAU Address Control Vector" },
+ { 0x1b, "VRID List Control Vector" },
+ { 0x1c, "Network-Qualified Name Pair Control Vector" },
+ { 0x1e, "VR-ER Mapping Data Control Vector" },
+ { 0x1f, "ER Configuration Control Vector" },
+ { 0x23, "Local-Form Session Identifier Control Vector" },
+ { 0x24, "IPL Load Module Request Control Vector" },
+ { 0x25, "Security ID Control Control Vector" },
+ { 0x26, "Network Connection Endpoint Identifier Control Vector" },
+ { 0x27, "XRF Session Activation Control Vector" },
+ { 0x28, "Related Session Identifier Control Vector" },
+ { 0x29, "Session State Data Control Vector" },
+ { 0x2a, "Session Information Control Vector" },
+ { 0x2b, "Route Selection Control Vector" },
+ { 0x2c, "COS/TPF Control Vector" },
+ { 0x2d, "Mode Control Vector" },
+ { 0x2f, "LU Definition Control Vector" },
+ { 0x30, "Assign LU Characteristics Control Vector" },
+ { 0x31, "BIND Image Control Vector" },
+ { 0x32, "Short-Hold Mode Control Vector" },
+ { 0x33, "ENCP Search Control Control Vector" },
+ { 0x34, "LU Definition Override Control Vector" },
+ { 0x35, "Extended Sense Data Control Vector" },
+ { 0x36, "Directory Error Control Vector" },
+ { 0x37, "Directory Entry Correlator Control Vector" },
+ { 0x38, "Short-Hold Mode Emulation Control Vector" },
+ { 0x39, "Network Connection Endpoint (NCE) Instance Identifier"
+ " Control Vector" },
+ { 0x3a, "Route Status Data Control Vector" },
+ { 0x3b, "VR Congestion Data Control Vector" },
+ { 0x3c, "Associated Resource Entry Control Vector" },
+ { 0x3d, "Directory Entry Control Vector" },
+ { 0x3e, "Directory Entry Characteristic Control Vector" },
+ { 0x3f, "SSCP (SLU) Capabilities Control Vector" },
+ { 0x40, "Real Associated Resource Control Vector" },
+ { 0x41, "Station Parameters Control Vector" },
+ { 0x42, "Dynamic Path Update Data Control Vector" },
+ { 0x43, "Extended SDLC Station Control Vector" },
+ { 0x44, "Node Descriptor Control Vector" },
+ { 0x45, "Node Characteristics Control Vector" },
+ { 0x46, "TG Descriptor Control Vector" },
+ { 0x47, "TG Characteristics Control Vector" },
+ { 0x48, "Topology Resource Descriptor Control Vector" },
+ { 0x49, "Multinode Persistent Sessions (MNPS) LU Names Control"
+ " Vector" },
+ { 0x4a, "Real Owning Control Point Control Vector" },
+ { 0x4b, "RTP Transport Connection Identifier Control Vector" },
+ { 0x51, "DLUR/S Capabilities Control Vector" },
+ { 0x52, "Primary Send Pacing Window Size Control Vector" },
+ { 0x56, "Call Security Verification Control Vector" },
+ { 0x57, "DLC Connection Data Control Vector" },
+ { 0x59, "Installation-Defined CDINIT Data Control Vector" },
+ { 0x5a, "Session Services Extension Support Control Vector" },
+ { 0x5b, "Interchange Node Support Control Vector" },
+ { 0x5c, "APPN Message Transport Control Vector" },
+ { 0x5d, "Subarea Message Transport Control Vector" },
+ { 0x5e, "Related Request Control Vector" },
+ { 0x5f, "Extended Fully Qualified PCID Control Vector" },
+ { 0x60, "Fully Qualified PCID Control Vector" },
+ { 0x61, "HPR Capabilities Control Vector" },
+ { 0x62, "Session Address Control Vector" },
+ { 0x63, "Cryptographic Key Distribution Control Vector" },
+ { 0x64, "TCP/IP Information Control Vector" },
+ { 0x65, "Device Characteristics Control Vector" },
+ { 0x66, "Length-Checked Compression Control Vector" },
+ { 0x67, "Automatic Network Routing (ANR) Path Control Vector" },
+ { 0x68, "XRF/Session Cryptography Control Vector" },
+ { 0x69, "Switched Parameters Control Vector" },
+ { 0x6a, "ER Congestion Data Control Vector" },
+ { 0x71, "Triple DES Cryptography Key Continuation Control Vector" },
+ { 0xfe, "Control Vector Keys Not Recognized" },
+ { 0x0, NULL }
+};
+
+static const value_string sna_control_hpr_vals[] = {
+ { 0x00, "Node Identifier Control Vector" },
+ { 0x03, "Network ID Control Vector" },
+ { 0x05, "Network Address Control Vector" },
+ { 0x0, NULL }
+};
+
+static const value_string sna_control_0e_type_vals[] = {
+ { 0xF1, "PU Name" },
+ { 0xF3, "LU Name" },
+ { 0xF4, "CP Name" },
+ { 0xF5, "SSCP Name" },
+ { 0xF6, "NNCP Name" },
+ { 0xF7, "Link Station Name" },
+ { 0xF8, "CP Name of CP(PLU)" },
+ { 0xF9, "CP Name of CP(SLU)" },
+ { 0xFA, "Generic Name" },
+ { 0x0, NULL }
+};
+
+/* Values to direct the top-most dissector what to dissect
+ * after the TH. */
+enum next_dissection_enum {
+ stop_here,
+ rh_only,
+ everything
+};
+
+enum parse {
+ LT,
+ KL
+};
+
+typedef enum next_dissection_enum next_dissection_t;
+
+static void dissect_xid (tvbuff_t*, packet_info*, proto_tree*, proto_tree*);
+static void dissect_fid (tvbuff_t*, packet_info*, proto_tree*, proto_tree*);
+static void dissect_nlp (tvbuff_t*, packet_info*, proto_tree*, proto_tree*);
+static void dissect_gds (tvbuff_t*, packet_info*, proto_tree*, proto_tree*);
static void dissect_rh (tvbuff_t*, int, proto_tree*);
+static void dissect_control(tvbuff_t*, int, int, proto_tree*, int, enum parse);
+
+/* --------------------------------------------------------------------
+ * Chapter 2 High-Performance Routing (HPR) Headers
+ * --------------------------------------------------------------------
+ */
static void
-dissect_sna(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
+dissect_optional_0d(tvbuff_t *tvb, proto_tree *tree)
{
+ int bits, offset, len, pad;
+ proto_tree *sub_tree;
+ proto_item *sub_ti = NULL;
+
+ if (!tree)
+ return;
+
+ proto_tree_add_item(tree, hf_sna_nlp_opti_0d_version, tvb, 2, 2, FALSE);
+ bits = tvb_get_guint8(tvb, 4);
+
+ sub_ti = proto_tree_add_uint(tree, hf_sna_nlp_opti_0d_4,
+ tvb, 4, 1, bits);
+ sub_tree = proto_item_add_subtree(sub_ti,
+ ett_sna_nlp_opti_0d_4);
+
+ proto_tree_add_boolean(sub_tree, hf_sna_nlp_opti_0d_target,
+ tvb, 4, 1, bits);
+ proto_tree_add_boolean(sub_tree, hf_sna_nlp_opti_0d_arb,
+ tvb, 4, 1, bits);
+ proto_tree_add_boolean(sub_tree, hf_sna_nlp_opti_0d_reliable,
+ tvb, 4, 1, bits);
+ proto_tree_add_boolean(sub_tree, hf_sna_nlp_opti_0d_dedicated,
+ tvb, 4, 1, bits);
+
+ proto_tree_add_text(tree, tvb, 5, 3, "Reserved");
+
+ offset = 8;
+
+ while (tvb_offset_exists(tvb, offset)) {
+ len = tvb_get_guint8(tvb, offset+0);
+ if (len) {
+ dissect_control(tvb, offset, len, tree, 1, LT);
+ pad = (len+3) & 0xfffc;
+ if (pad > len)
+ proto_tree_add_text(tree, tvb, offset+len,
+ pad-len, "Padding");
+ offset += pad;
+ } else {
+ /* Avoid endless loop */
+ return;
+ }
+ }
+}
- proto_tree *sna_tree = NULL, *th_tree = NULL, *rh_tree = NULL;
- proto_item *sna_ti = NULL, *th_ti = NULL, *rh_ti = NULL;
- guint8 th_fid;
- int sna_header_len = 0, th_header_len = 0;
- int offset;
+static void
+dissect_optional_0e(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
+{
+ int bits, offset;
+ proto_tree *sub_tree;
+ proto_item *sub_ti = NULL;
- if (check_col(pinfo->fd, COL_PROTOCOL))
- col_set_str(pinfo->fd, COL_PROTOCOL, "SNA");
- if (check_col(pinfo->fd, COL_INFO))
- col_clear(pinfo->fd, COL_INFO);
+ bits = tvb_get_guint8(tvb, 2);
+ offset = 20;
- /* SNA data should be printed in EBCDIC, not ASCII */
- pinfo->fd->flags.encoding = CHAR_EBCDIC;
+ if (tree) {
+ sub_ti = proto_tree_add_item(tree, hf_sna_nlp_opti_0e_stat,
+ tvb, 2, 1, FALSE);
+ sub_tree = proto_item_add_subtree(sub_ti,
+ ett_sna_nlp_opti_0e_stat);
+
+ proto_tree_add_boolean(sub_tree, hf_sna_nlp_opti_0e_gap,
+ tvb, 2, 1, bits);
+ proto_tree_add_boolean(sub_tree, hf_sna_nlp_opti_0e_idle,
+ tvb, 2, 1, bits);
+ proto_tree_add_item(tree, hf_sna_nlp_opti_0e_nabsp,
+ tvb, 3, 1, FALSE);
+ proto_tree_add_item(tree, hf_sna_nlp_opti_0e_sync,
+ tvb, 4, 2, FALSE);
+ proto_tree_add_item(tree, hf_sna_nlp_opti_0e_echo,
+ tvb, 6, 2, FALSE);
+ proto_tree_add_item(tree, hf_sna_nlp_opti_0e_rseq,
+ tvb, 8, 4, FALSE);
+ proto_tree_add_text(tree, tvb, 12, 8, "Reserved");
+
+ if (tvb_offset_exists(tvb, offset))
+ call_dissector(data_handle,
+ tvb_new_subset(tvb, 4, -1, -1), pinfo, tree);
+ }
+ if (bits & 0x40) {
+ if (check_col(pinfo->cinfo, COL_INFO))
+ col_add_str(pinfo->cinfo, COL_INFO,
+ "HPR Idle Message");
+ } else {
+ if (check_col(pinfo->cinfo, COL_INFO))
+ col_add_str(pinfo->cinfo, COL_INFO,
+ "HPR Status Message");
+ }
+}
- /* Transmission Header Format Identifier */
- th_fid = hi_nibble(tvb_get_guint8(tvb, 0));
+static void
+dissect_optional_0f(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
+{
+ if (!tree)
+ return;
- /* Summary information */
- if (check_col(pinfo->fd, COL_INFO))
- col_add_str(pinfo->fd, COL_INFO,
- val_to_str(th_fid, sna_th_fid_vals, "Unknown FID: %01x"));
+ proto_tree_add_item(tree, hf_sna_nlp_opti_0f_bits, tvb, 2, 2, FALSE);
+ if (tvb_offset_exists(tvb, 4))
+ call_dissector(data_handle,
+ tvb_new_subset(tvb, 4, -1, -1), pinfo, tree);
+}
- if (tree) {
+static void
+dissect_optional_10(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
+{
+ if (!tree)
+ return;
+
+ proto_tree_add_text(tree, tvb, 2, 2, "Reserved");
+ proto_tree_add_item(tree, hf_sna_nlp_opti_10_tcid, tvb, 4, 8, FALSE);
+ if (tvb_offset_exists(tvb, 12))
+ call_dissector(data_handle,
+ tvb_new_subset(tvb, 12, -1, -1), pinfo, tree);
+}
- /* Don't bother setting length. We'll set it later after we find
- * the lengths of TH/RH/RU */
- sna_ti = proto_tree_add_item(tree, proto_sna, tvb, 0, 0, FALSE);
- sna_tree = proto_item_add_subtree(sna_ti, ett_sna);
+static void
+dissect_optional_12(tvbuff_t *tvb, proto_tree *tree)
+{
+ if (!tree)
+ return;
- /* --- TH --- */
- /* Don't bother setting length. We'll set it later after we find
- * the length of TH */
- th_ti = proto_tree_add_item(sna_tree, hf_sna_th, tvb, 0, 0, FALSE);
- th_tree = proto_item_add_subtree(th_ti, ett_sna_th);
+ proto_tree_add_text(tree, tvb, 2, 2, "Reserved");
+ proto_tree_add_item(tree, hf_sna_nlp_opti_12_sense, tvb, 4, -1, FALSE);
+}
+
+static void
+dissect_optional_14(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
+{
+ proto_tree *sub_tree, *bf_tree;
+ proto_item *sub_item, *bf_item;
+ int len, pad, type, bits, offset, num, sublen;
+
+ if (!tree)
+ return;
+
+ proto_tree_add_text(tree, tvb, 2, 2, "Reserved");
+
+ offset = 4;
+
+ len = tvb_get_guint8(tvb, offset);
+ type = tvb_get_guint8(tvb, offset+1);
+
+ if ((type != 0x83) || (len <= 16)) {
+ /* Invalid */
+ call_dissector(data_handle,
+ tvb_new_subset(tvb, offset, -1, -1), pinfo, tree);
+ return;
+ }
+ sub_item = proto_tree_add_text(tree, tvb, offset, len,
+ "Switching Information Control Vector");
+ sub_tree = proto_item_add_subtree(sub_item, ett_sna_nlp_opti_14_si);
+
+ proto_tree_add_uint(sub_tree, hf_sna_nlp_opti_14_si_len,
+ tvb, offset, 1, len);
+ proto_tree_add_uint(sub_tree, hf_sna_nlp_opti_14_si_key,
+ tvb, offset+1, 1, type);
+
+ bits = tvb_get_guint8(tvb, offset+2);
+ bf_item = proto_tree_add_uint(sub_tree, hf_sna_nlp_opti_14_si_2,
+ tvb, offset+2, 1, bits);
+ bf_tree = proto_item_add_subtree(bf_item, ett_sna_nlp_opti_14_si_2);
+
+ proto_tree_add_boolean(bf_tree, hf_sna_nlp_opti_14_si_refifo,
+ tvb, offset+2, 1, bits);
+ proto_tree_add_boolean(bf_tree, hf_sna_nlp_opti_14_si_mobility,
+ tvb, offset+2, 1, bits);
+ proto_tree_add_boolean(bf_tree, hf_sna_nlp_opti_14_si_dirsearch,
+ tvb, offset+2, 1, bits);
+ proto_tree_add_boolean(bf_tree, hf_sna_nlp_opti_14_si_limitres,
+ tvb, offset+2, 1, bits);
+ proto_tree_add_boolean(bf_tree, hf_sna_nlp_opti_14_si_ncescope,
+ tvb, offset+2, 1, bits);
+ proto_tree_add_boolean(bf_tree, hf_sna_nlp_opti_14_si_mnpsrscv,
+ tvb, offset+2, 1, bits);
+
+ proto_tree_add_text(sub_tree, tvb, offset+3, 1, "Reserved");
+ proto_tree_add_item(sub_tree, hf_sna_nlp_opti_14_si_maxpsize,
+ tvb, offset+4, 4, FALSE);
+ proto_tree_add_item(sub_tree, hf_sna_nlp_opti_14_si_switch,
+ tvb, offset+8, 4, FALSE);
+ proto_tree_add_item(sub_tree, hf_sna_nlp_opti_14_si_alive,
+ tvb, offset+12, 4, FALSE);
+
+ dissect_control(tvb, offset+16, len-16, sub_tree, 1, LT);
+
+ pad = (len+3) & 0xfffc;
+ if (pad > len)
+ proto_tree_add_text(sub_tree, tvb, offset+len, pad-len,
+ "Padding");
+ offset += pad;
+
+ len = tvb_get_guint8(tvb, offset);
+ type = tvb_get_guint8(tvb, offset+1);
+
+ if ((type != 0x85) || ( len < 4)) {
+ /* Invalid */
+ call_dissector(data_handle,
+ tvb_new_subset(tvb, offset, -1, -1), pinfo, tree);
+ return;
}
+ sub_item = proto_tree_add_text(tree, tvb, offset, len,
+ "Return Route TG Descriptor Control Vector");
+ sub_tree = proto_item_add_subtree(sub_item, ett_sna_nlp_opti_14_rr);
+
+ proto_tree_add_uint(sub_tree, hf_sna_nlp_opti_14_rr_len,
+ tvb, offset, 1, len);
+ proto_tree_add_uint(sub_tree, hf_sna_nlp_opti_14_rr_key,
+ tvb, offset+1, 1, type);
+
+ bits = tvb_get_guint8(tvb, offset+2);
+ bf_item = proto_tree_add_uint(sub_tree, hf_sna_nlp_opti_14_rr_2,
+ tvb, offset+2, 1, bits);
+ bf_tree = proto_item_add_subtree(bf_item, ett_sna_nlp_opti_14_rr_2);
+
+ proto_tree_add_boolean(bf_tree, hf_sna_nlp_opti_14_rr_bfe,
+ tvb, offset+2, 1, bits);
+
+ num = tvb_get_guint8(tvb, offset+3);
+
+ proto_tree_add_uint(sub_tree, hf_sna_nlp_opti_14_rr_num,
+ tvb, offset+3, 1, num);
+
+ offset += 4;
+
+ while (num) {
+ sublen = tvb_get_guint8(tvb, offset);
+ if (sublen) {
+ dissect_control(tvb, offset, sublen, sub_tree, 1, LT);
+ } else {
+ /* Invalid */
+ call_dissector(data_handle,
+ tvb_new_subset(tvb, offset, -1, -1), pinfo, tree);
+ return;
+ }
+ /* No padding here */
+ offset += sublen;
+ num--;
+ }
+}
- /* Get size of TH */
- switch(th_fid) {
- case 0x0:
- case 0x1:
- th_header_len = dissect_fid0_1(tvb, pinfo, th_tree);
- break;
- case 0x2:
- th_header_len = dissect_fid2(tvb, pinfo, th_tree);
- break;
- case 0x3:
- th_header_len = dissect_fid3(tvb, th_tree);
- break;
- case 0x4:
- th_header_len = dissect_fid4(tvb, pinfo, th_tree);
- break;
- case 0x5:
- th_header_len = dissect_fid5(tvb, th_tree);
- break;
- case 0xf:
- th_header_len = dissect_fidf(tvb, th_tree);
- break;
- default:
- dissect_data(tvb, 1, pinfo, tree);
+static void
+dissect_optional_22(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
+{
+ proto_tree *bf_tree;
+ proto_item *bf_item;
+ int bits, type;
+
+ if (!tree)
+ return;
+
+ bits = tvb_get_guint8(tvb, 2);
+ type = (bits & 0xc0) >> 6;
+
+ bf_item = proto_tree_add_uint(tree, hf_sna_nlp_opti_22_2,
+ tvb, 2, 1, bits);
+ bf_tree = proto_item_add_subtree(bf_item, ett_sna_nlp_opti_22_2);
+
+ proto_tree_add_uint(bf_tree, hf_sna_nlp_opti_22_type,
+ tvb, 2, 1, bits);
+ proto_tree_add_uint(bf_tree, hf_sna_nlp_opti_22_raa,
+ tvb, 2, 1, bits);
+ proto_tree_add_boolean(bf_tree, hf_sna_nlp_opti_22_parity,
+ tvb, 2, 1, bits);
+ proto_tree_add_uint(bf_tree, hf_sna_nlp_opti_22_arb,
+ tvb, 2, 1, bits);
+
+ bits = tvb_get_guint8(tvb, 3);
+
+ bf_item = proto_tree_add_uint(tree, hf_sna_nlp_opti_22_3,
+ tvb, 3, 1, bits);
+ bf_tree = proto_item_add_subtree(bf_item, ett_sna_nlp_opti_22_3);
+
+ proto_tree_add_uint(bf_tree, hf_sna_nlp_opti_22_ratereq,
+ tvb, 3, 1, bits);
+ proto_tree_add_uint(bf_tree, hf_sna_nlp_opti_22_raterep,
+ tvb, 3, 1, bits);
+
+ proto_tree_add_item(tree, hf_sna_nlp_opti_22_field1,
+ tvb, 4, 4, FALSE);
+ proto_tree_add_item(tree, hf_sna_nlp_opti_22_field2,
+ tvb, 8, 4, FALSE);
+
+ if (type == 0) {
+ proto_tree_add_item(tree, hf_sna_nlp_opti_22_field3,
+ tvb, 12, 4, FALSE);
+ proto_tree_add_item(tree, hf_sna_nlp_opti_22_field4,
+ tvb, 16, 4, FALSE);
+
+ if (tvb_offset_exists(tvb, 20))
+ call_dissector(data_handle,
+ tvb_new_subset(tvb, 20, -1, -1), pinfo, tree);
+ } else {
+ if (tvb_offset_exists(tvb, 12))
+ call_dissector(data_handle,
+ tvb_new_subset(tvb, 12, -1, -1), pinfo, tree);
}
+}
- sna_header_len += th_header_len;
- offset = th_header_len;
+static void
+dissect_optional(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
+{
+ proto_tree *sub_tree;
+ proto_item *sub_item;
+ int offset, type, len;
+ gint ett;
+
+ sub_tree = NULL;
+
+ offset = 0;
+
+ while (tvb_offset_exists(tvb, offset)) {
+ len = tvb_get_guint8(tvb, offset);
+ type = tvb_get_guint8(tvb, offset+1);
+
+ /* Prevent loop for invalid crap in packet */
+ if (len == 0) {
+ if (tree)
+ call_dissector(data_handle,
+ tvb_new_subset(tvb, offset,
+ -1, -1), pinfo, tree);
+ return;
+ }
+
+ ett = ett_sna_nlp_opti_un;
+ if(type == 0x0d) ett = ett_sna_nlp_opti_0d;
+ if(type == 0x0e) ett = ett_sna_nlp_opti_0e;
+ if(type == 0x0f) ett = ett_sna_nlp_opti_0f;
+ if(type == 0x10) ett = ett_sna_nlp_opti_10;
+ if(type == 0x12) ett = ett_sna_nlp_opti_12;
+ if(type == 0x14) ett = ett_sna_nlp_opti_14;
+ if(type == 0x22) ett = ett_sna_nlp_opti_22;
+ if (tree) {
+ sub_item = proto_tree_add_text(tree, tvb,
+ offset, len << 2,
+ val_to_str(type, sna_nlp_opti_vals,
+ "Unknown Segment Type"));
+ sub_tree = proto_item_add_subtree(sub_item, ett);
+ proto_tree_add_uint(sub_tree, hf_sna_nlp_opti_len,
+ tvb, offset, 1, len);
+ proto_tree_add_uint(sub_tree, hf_sna_nlp_opti_type,
+ tvb, offset+1, 1, type);
+ }
+ switch(type) {
+ case 0x0d:
+ dissect_optional_0d(tvb_new_subset(tvb, offset,
+ len << 2, -1), sub_tree);
+ break;
+ case 0x0e:
+ dissect_optional_0e(tvb_new_subset(tvb, offset,
+ len << 2, -1), pinfo, sub_tree);
+ break;
+ case 0x0f:
+ dissect_optional_0f(tvb_new_subset(tvb, offset,
+ len << 2, -1), pinfo, sub_tree);
+ break;
+ case 0x10:
+ dissect_optional_10(tvb_new_subset(tvb, offset,
+ len << 2, -1), pinfo, sub_tree);
+ break;
+ case 0x12:
+ dissect_optional_12(tvb_new_subset(tvb, offset,
+ len << 2, -1), sub_tree);
+ break;
+ case 0x14:
+ dissect_optional_14(tvb_new_subset(tvb, offset,
+ len << 2, -1), pinfo, sub_tree);
+ break;
+ case 0x22:
+ dissect_optional_22(tvb_new_subset(tvb, offset,
+ len << 2, -1), pinfo, sub_tree);
+ break;
+ default:
+ call_dissector(data_handle,
+ tvb_new_subset(tvb, offset,
+ len << 2, -1), pinfo, sub_tree);
+ }
+ offset += (len << 2);
+ }
+}
+
+static void
+dissect_nlp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree,
+ proto_tree *parent_tree)
+{
+ proto_tree *nlp_tree, *bf_tree;
+ proto_item *nlp_item, *bf_item, *h_item;
+ guint8 nhdr_0, nhdr_1, nhdr_x, thdr_8, thdr_9, fid;
+ guint32 thdr_len, thdr_dlf;
+ guint16 subindex;
+
+ int index = 0, counter = 0;
+
+ nlp_tree = NULL;
+ nlp_item = NULL;
+
+ nhdr_0 = tvb_get_guint8(tvb, index);
+ nhdr_1 = tvb_get_guint8(tvb, index+1);
+
+ if (check_col(pinfo->cinfo, COL_INFO))
+ col_add_str(pinfo->cinfo, COL_INFO, "HPR NLP Packet");
if (tree) {
- proto_item_set_len(th_ti, th_header_len);
+ /* Don't bother setting length. We'll set it later after we
+ * find the lengths of NHDR */
+ nlp_item = proto_tree_add_item(tree, hf_sna_nlp_nhdr, tvb,
+ index, -1, FALSE);
+ nlp_tree = proto_item_add_subtree(nlp_item, ett_sna_nlp_nhdr);
+
+ bf_item = proto_tree_add_uint(nlp_tree, hf_sna_nlp_nhdr_0, tvb,
+ index, 1, nhdr_0);
+ bf_tree = proto_item_add_subtree(bf_item, ett_sna_nlp_nhdr_0);
+
+ proto_tree_add_uint(bf_tree, hf_sna_nlp_sm, tvb, index, 1,
+ nhdr_0);
+ proto_tree_add_uint(bf_tree, hf_sna_nlp_tpf, tvb, index, 1,
+ nhdr_0);
+
+ bf_item = proto_tree_add_uint(nlp_tree, hf_sna_nlp_nhdr_1, tvb,
+ index+1, 1, nhdr_1);
+ bf_tree = proto_item_add_subtree(bf_item, ett_sna_nlp_nhdr_1);
+
+ proto_tree_add_uint(bf_tree, hf_sna_nlp_ft, tvb,
+ index+1, 1, nhdr_1);
+ proto_tree_add_boolean(bf_tree, hf_sna_nlp_tspi, tvb,
+ index+1, 1, nhdr_1);
+ proto_tree_add_boolean(bf_tree, hf_sna_nlp_slowdn1, tvb,
+ index+1, 1, nhdr_1);
+ proto_tree_add_boolean(bf_tree, hf_sna_nlp_slowdn2, tvb,
+ index+1, 1, nhdr_1);
+ }
+ /* ANR or FR lists */
+
+ index += 2;
+ counter = 0;
+
+ if ((nhdr_0 & 0xe0) == 0xa0) {
+ do {
+ nhdr_x = tvb_get_guint8(tvb, index + counter);
+ counter ++;
+ } while (nhdr_x != 0xff);
+ if (tree)
+ h_item = proto_tree_add_item(nlp_tree,
+ hf_sna_nlp_fra, tvb, index, counter, FALSE);
+ index += counter;
+ if (tree)
+ proto_tree_add_text(nlp_tree, tvb, index, 1,
+ "Reserved");
+ index++;
+
+ if (tree)
+ proto_item_set_len(nlp_item, index);
+
+ if ((nhdr_1 & 0xf0) == 0x10) {
+ nhdr_x = tvb_get_guint8(tvb, index);
+ if (tree)
+ proto_tree_add_uint(tree, hf_sna_nlp_frh,
+ tvb, index, 1, nhdr_x);
+ index ++;
+
+ if (tvb_offset_exists(tvb, index))
+ call_dissector(data_handle,
+ tvb_new_subset(tvb, index, -1, -1),
+ pinfo, parent_tree);
+ return;
+ }
+ }
+ if ((nhdr_0 & 0xe0) == 0xc0) {
+ do {
+ nhdr_x = tvb_get_guint8(tvb, index + counter);
+ counter ++;
+ } while (nhdr_x != 0xff);
+ if (tree)
+ h_item = proto_tree_add_item(nlp_tree, hf_sna_nlp_anr,
+ tvb, index, counter, FALSE);
+ index += counter;
+
+ if (tree)
+ proto_tree_add_text(nlp_tree, tvb, index, 1,
+ "Reserved");
+ index++;
+
+ if (tree)
+ proto_item_set_len(nlp_item, index);
+ }
- /* --- RH --- */
- rh_ti = proto_tree_add_item(sna_tree, hf_sna_rh, tvb, offset, 3, FALSE);
- rh_tree = proto_item_add_subtree(rh_ti, ett_sna_rh);
- dissect_rh(tvb, offset, rh_tree);
+ thdr_8 = tvb_get_guint8(tvb, index+8);
+ thdr_9 = tvb_get_guint8(tvb, index+9);
+ thdr_len = tvb_get_ntohs(tvb, index+10);
+ thdr_dlf = tvb_get_ntohl(tvb, index+12);
+
+ if (tree) {
+ nlp_item = proto_tree_add_item(tree, hf_sna_nlp_thdr, tvb,
+ index, thdr_len << 2, FALSE);
+ nlp_tree = proto_item_add_subtree(nlp_item, ett_sna_nlp_thdr);
+
+ proto_tree_add_item(nlp_tree, hf_sna_nlp_tcid, tvb,
+ index, 8, FALSE);
+ bf_item = proto_tree_add_uint(nlp_tree, hf_sna_nlp_thdr_8, tvb,
+ index+8, 1, thdr_8);
+ bf_tree = proto_item_add_subtree(bf_item, ett_sna_nlp_thdr_8);
+
+ proto_tree_add_boolean(bf_tree, hf_sna_nlp_setupi, tvb,
+ index+8, 1, thdr_8);
+ proto_tree_add_boolean(bf_tree, hf_sna_nlp_somi, tvb, index+8,
+ 1, thdr_8);
+ proto_tree_add_boolean(bf_tree, hf_sna_nlp_eomi, tvb, index+8,
+ 1, thdr_8);
+ proto_tree_add_boolean(bf_tree, hf_sna_nlp_sri, tvb, index+8,
+ 1, thdr_8);
+ proto_tree_add_boolean(bf_tree, hf_sna_nlp_rasapi, tvb,
+ index+8, 1, thdr_8);
+ proto_tree_add_boolean(bf_tree, hf_sna_nlp_retryi, tvb,
+ index+8, 1, thdr_8);
+
+ bf_item = proto_tree_add_uint(nlp_tree, hf_sna_nlp_thdr_9, tvb,
+ index+9, 1, thdr_9);
+ bf_tree = proto_item_add_subtree(bf_item, ett_sna_nlp_thdr_9);
+
+ proto_tree_add_boolean(bf_tree, hf_sna_nlp_lmi, tvb, index+9,
+ 1, thdr_9);
+ proto_tree_add_boolean(bf_tree, hf_sna_nlp_cqfi, tvb, index+9,
+ 1, thdr_9);
+ proto_tree_add_boolean(bf_tree, hf_sna_nlp_osi, tvb, index+9,
+ 1, thdr_9);
+
+ proto_tree_add_uint(nlp_tree, hf_sna_nlp_offset, tvb, index+10,
+ 2, thdr_len);
+ proto_tree_add_uint(nlp_tree, hf_sna_nlp_dlf, tvb, index+12,
+ 4, thdr_dlf);
+ proto_tree_add_item(nlp_tree, hf_sna_nlp_bsn, tvb, index+16,
+ 4, FALSE);
+ }
+ subindex = 20;
+
+ if (((thdr_9 & 0x18) == 0x08) && ((thdr_len << 2) > subindex)) {
+ counter = tvb_get_guint8(tvb, index + subindex);
+ if (tvb_get_guint8(tvb, index+subindex+1) == 5)
+ dissect_control(tvb, index + subindex, counter+2, nlp_tree, 1, LT);
+ else
+ call_dissector(data_handle,
+ tvb_new_subset(tvb, index + subindex, counter+2,
+ -1), pinfo, nlp_tree);
+
+ subindex += (counter+2);
+ }
+ if ((thdr_9 & 0x04) && ((thdr_len << 2) > subindex))
+ dissect_optional(
+ tvb_new_subset(tvb, index + subindex,
+ (thdr_len << 2) - subindex, -1),
+ pinfo, nlp_tree);
+
+ index += (thdr_len << 2);
+ if (((thdr_8 & 0x20) == 0) && thdr_dlf) {
+ if (check_col(pinfo->cinfo, COL_INFO))
+ col_add_str(pinfo->cinfo, COL_INFO, "HPR Fragment");
+ if (tvb_offset_exists(tvb, index)) {
+ call_dissector(data_handle,
+ tvb_new_subset(tvb, index, -1, -1), pinfo,
+ parent_tree);
+ }
+ return;
+ }
+ if (tvb_offset_exists(tvb, index)) {
+ /* Transmission Header Format Identifier */
+ fid = hi_nibble(tvb_get_guint8(tvb, index));
+ if (fid == 5) /* Only FID5 allowed for HPR */
+ dissect_fid(tvb_new_subset(tvb, index, -1, -1), pinfo,
+ tree, parent_tree);
+ else {
+ if (tvb_get_ntohs(tvb, index+2) == 0x12ce) {
+ /* Route Setup */
+ if (check_col(pinfo->cinfo, COL_INFO))
+ col_add_str(pinfo->cinfo, COL_INFO,
+ "HPR Route Setup");
+ dissect_gds(tvb_new_subset(tvb, index, -1, -1),
+ pinfo, tree, parent_tree);
+ } else
+ call_dissector(data_handle,
+ tvb_new_subset(tvb, index, -1, -1),
+ pinfo, parent_tree);
+ }
+ }
+}
+
+/* --------------------------------------------------------------------
+ * Chapter 3 Exchange Identification (XID) Information Fields
+ * --------------------------------------------------------------------
+ */
+
+static void
+dissect_xid1(tvbuff_t *tvb, proto_tree *tree)
+{
+ if (!tree)
+ return;
+
+ proto_tree_add_text(tree, tvb, 0, 2, "Reserved");
+
+}
+
+static void
+dissect_xid2(tvbuff_t *tvb, proto_tree *tree)
+{
+ guint dlen, offset;
+
+ if (!tree)
+ return;
+
+ dlen = tvb_get_guint8(tvb, 0);
+
+ offset = dlen;
+
+ while (tvb_offset_exists(tvb, offset)) {
+ dlen = tvb_get_guint8(tvb, offset+1);
+ dissect_control(tvb, offset, dlen+2, tree, 0, KL);
+ offset += (dlen + 2);
+ }
+}
+
+static void
+dissect_xid3(tvbuff_t *tvb, proto_tree *tree)
+{
+ proto_tree *sub_tree;
+ proto_item *sub_ti = NULL;
+ guint val, dlen, offset;
+
+ if (!tree)
+ return;
+
+ proto_tree_add_text(tree, tvb, 0, 2, "Reserved");
+
+ val = tvb_get_ntohs(tvb, 2);
+
+ sub_ti = proto_tree_add_uint(tree, hf_sna_xid_3_8, tvb,
+ 2, 2, val);
+ sub_tree = proto_item_add_subtree(sub_ti, ett_sna_xid_3_8);
+
+ proto_tree_add_boolean(sub_tree, hf_sna_xid_3_init_self, tvb, 2, 2,
+ val);
+ proto_tree_add_boolean(sub_tree, hf_sna_xid_3_stand_bind, tvb, 2, 2,
+ val);
+ proto_tree_add_boolean(sub_tree, hf_sna_xid_3_gener_bind, tvb, 2, 2,
+ val);
+ proto_tree_add_boolean(sub_tree, hf_sna_xid_3_recve_bind, tvb, 2, 2,
+ val);
+ proto_tree_add_boolean(sub_tree, hf_sna_xid_3_actpu, tvb, 2, 2, val);
+ proto_tree_add_boolean(sub_tree, hf_sna_xid_3_nwnode, tvb, 2, 2, val);
+ proto_tree_add_boolean(sub_tree, hf_sna_xid_3_cp, tvb, 2, 2, val);
+ proto_tree_add_boolean(sub_tree, hf_sna_xid_3_cpcp, tvb, 2, 2, val);
+ proto_tree_add_uint(sub_tree, hf_sna_xid_3_state, tvb, 2, 2, val);
+ proto_tree_add_boolean(sub_tree, hf_sna_xid_3_nonact, tvb, 2, 2, val);
+ proto_tree_add_boolean(sub_tree, hf_sna_xid_3_cpchange, tvb, 2, 2,
+ val);
+
+ val = tvb_get_guint8(tvb, 4);
+
+ sub_ti = proto_tree_add_uint(tree, hf_sna_xid_3_10, tvb,
+ 4, 1, val);
+ sub_tree = proto_item_add_subtree(sub_ti, ett_sna_xid_3_10);
+
+ proto_tree_add_boolean(sub_tree, hf_sna_xid_3_asend_bind, tvb, 4, 1,
+ val);
+ proto_tree_add_boolean(sub_tree, hf_sna_xid_3_arecv_bind, tvb, 4, 1,
+ val);
+ proto_tree_add_boolean(sub_tree, hf_sna_xid_3_quiesce, tvb, 4, 1, val);
+ proto_tree_add_boolean(sub_tree, hf_sna_xid_3_pucap, tvb, 4, 1, val);
+ proto_tree_add_boolean(sub_tree, hf_sna_xid_3_pbn, tvb, 4, 1, val);
+ proto_tree_add_uint(sub_tree, hf_sna_xid_3_pacing, tvb, 4, 1, val);
+
+ val = tvb_get_guint8(tvb, 5);
+
+ sub_ti = proto_tree_add_uint(tree, hf_sna_xid_3_11, tvb,
+ 5, 1, val);
+ sub_tree = proto_item_add_subtree(sub_ti, ett_sna_xid_3_11);
+
+ proto_tree_add_boolean(sub_tree, hf_sna_xid_3_tgshare, tvb, 5, 1, val);
+ proto_tree_add_boolean(sub_tree, hf_sna_xid_3_dedsvc, tvb, 5, 1, val);
+
+ val = tvb_get_guint8(tvb, 6);
+
+ sub_ti = proto_tree_add_item(tree, hf_sna_xid_3_12, tvb,
+ 6, 1, FALSE);
+ sub_tree = proto_item_add_subtree(sub_ti, ett_sna_xid_3_12);
+
+ proto_tree_add_boolean(sub_tree, hf_sna_xid_3_negcsup, tvb, 6, 1, val);
+ proto_tree_add_boolean(sub_tree, hf_sna_xid_3_negcomp, tvb, 6, 1, val);
+
+ proto_tree_add_text(tree, tvb, 7, 2, "Reserved");
+
+ val = tvb_get_guint8(tvb, 9);
+
+ sub_ti = proto_tree_add_item(tree, hf_sna_xid_3_15, tvb,
+ 9, 1, FALSE);
+ sub_tree = proto_item_add_subtree(sub_ti, ett_sna_xid_3_15);
+
+ proto_tree_add_boolean(sub_tree, hf_sna_xid_3_partg, tvb, 9, 1, val);
+ proto_tree_add_boolean(sub_tree, hf_sna_xid_3_dlur, tvb, 9, 1, val);
+ proto_tree_add_boolean(sub_tree, hf_sna_xid_3_dlus, tvb, 9, 1, val);
+ proto_tree_add_boolean(sub_tree, hf_sna_xid_3_exbn, tvb, 9, 1, val);
+ proto_tree_add_boolean(sub_tree, hf_sna_xid_3_genodai, tvb, 9, 1, val);
+ proto_tree_add_uint(sub_tree, hf_sna_xid_3_branch, tvb, 9, 1, val);
+ proto_tree_add_boolean(sub_tree, hf_sna_xid_3_brnn, tvb, 9, 1, val);
+
+ proto_tree_add_item(tree, hf_sna_xid_3_tg, tvb, 10, 1, FALSE);
+ proto_tree_add_item(tree, hf_sna_xid_3_dlc, tvb, 11, 1, FALSE);
+
+ dlen = tvb_get_guint8(tvb, 12);
+
+ proto_tree_add_uint(tree, hf_sna_xid_3_dlen, tvb, 12, 1, dlen);
+
+ /* FIXME: DLC Dependent Data Go Here */
+
+ offset = 12 + dlen;
+
+ while (tvb_offset_exists(tvb, offset)) {
+ dlen = tvb_get_guint8(tvb, offset+1);
+ dissect_control(tvb, offset, dlen+2, tree, 0, KL);
+ offset += (dlen+2);
+ }
+}
+
+static void
+dissect_xid(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree,
+ proto_tree *parent_tree)
+{
+ proto_tree *sub_tree;
+ proto_item *sub_ti = NULL;
+ int format, type, len;
+ guint32 id;
+
+ len = tvb_get_guint8(tvb, 1);
+ type = tvb_get_guint8(tvb, 0);
+ id = tvb_get_ntohl(tvb, 2);
+ format = hi_nibble(type);
- sna_header_len += 3;
- offset += 3;
- proto_item_set_len(sna_ti, sna_header_len);
+ /* Summary information */
+ if (check_col(pinfo->cinfo, COL_INFO))
+ col_add_fstr(pinfo->cinfo, COL_INFO,
+ "SNA XID Format:%d Type:%s", format,
+ val_to_str(lo_nibble(type), sna_xid_type_vals,
+ "Unknown Type"));
+
+ if (tree) {
+ sub_ti = proto_tree_add_item(tree, hf_sna_xid_0, tvb,
+ 0, 1, FALSE);
+ sub_tree = proto_item_add_subtree(sub_ti, ett_sna_xid_0);
+
+ proto_tree_add_uint(sub_tree, hf_sna_xid_format, tvb, 0, 1,
+ type);
+ proto_tree_add_uint(sub_tree, hf_sna_xid_type, tvb, 0, 1,
+ type);
+
+ proto_tree_add_uint(tree, hf_sna_xid_len, tvb, 1, 1, len);
+
+ sub_ti = proto_tree_add_item(tree, hf_sna_xid_id, tvb,
+ 2, 4, FALSE);
+ sub_tree = proto_item_add_subtree(sub_ti, ett_sna_xid_id);
+
+ proto_tree_add_uint(sub_tree, hf_sna_xid_idblock, tvb, 2, 4,
+ id);
+ proto_tree_add_uint(sub_tree, hf_sna_xid_idnum, tvb, 2, 4,
+ id);
+
+ switch(format) {
+ case 0:
+ break;
+ case 1:
+ dissect_xid1(tvb_new_subset(tvb, 6, len-6, -1),
+ tree);
+ break;
+ case 2:
+ dissect_xid2(tvb_new_subset(tvb, 6, len-6, -1),
+ tree);
+ break;
+ case 3:
+ dissect_xid3(tvb_new_subset(tvb, 6, len-6, -1),
+ tree);
+ break;
+ default:
+ /* external standards organizations */
+ call_dissector(data_handle,
+ tvb_new_subset(tvb, 6, len-6, -1),
+ pinfo, tree);
+ }
}
- else {
- sna_header_len += 3;
- offset += 3;
+
+ if (format == 0)
+ len = 6;
+
+ if (tvb_offset_exists(tvb, len))
+ call_dissector(data_handle,
+ tvb_new_subset(tvb, len, -1, -1), pinfo, parent_tree);
+}
+
+/* --------------------------------------------------------------------
+ * Chapter 4 Transmission Headers (THs)
+ * --------------------------------------------------------------------
+ */
+
+#define RH_LEN 3
+
+static unsigned int
+mpf_value(guint8 th_byte)
+{
+ return (th_byte & 0x0c) >> 2;
+}
+
+#define FIRST_FRAG_NUMBER 0
+#define MIDDLE_FRAG_NUMBER 1
+#define LAST_FRAG_NUMBER 2
+
+/* FID2 is defragged by sequence. The weird thing is that we have neither
+ * absolute sequence numbers, nor byte offets. Other FIDs have byte offsets
+ * (the DCF field), but not FID2. The only thing we have to go with is "FIRST",
+ * "MIDDLE", or "LAST". If the BIU is split into 3 frames, then everything is
+ * fine, * "FIRST", "MIDDLE", and "LAST" map nicely onto frag-number 0, 1,
+ * and 2. However, if the BIU is split into 2 frames, then we only have
+ * "FIRST" and "LAST", and the mapping *should* be frag-number 0 and 1,
+ * *NOT* 0 and 2.
+ *
+ * The SNA docs say "FID2 PIUs cannot be blocked because there is no DCF in the
+ * TH format for deblocking" (note on Figure 4-2 in the IBM SNA documention,
+ * see the FTP URL in the comment near the top of this file). I *think*
+ * this means that the fragmented frames cannot arrive out of order.
+ * Well, I *want* it to mean this, because w/o this limitation, if you
+ * get a "FIRST" frame and a "LAST" frame, how long should you wait to
+ * see if a "MIDDLE" frame every arrives????? Thus, if frames *have* to
+ * arrive in order, then we're saved.
+ *
+ * The problem then boils down to figuring out if "LAST" means frag-number 1
+ * (in the case of a BIU split into 2 frames) or frag-number 2
+ * (in the case of a BIU split into 3 frames).
+ *
+ * Assuming fragmented FID2 BIU frames *do* arrive in order, the obvious
+ * way to handle the mapping of "LAST" to either frag-number 1 or
+ * frag-number 2 is to keep a hash which tracks the frames seen, etc.
+ * This consumes resources. A trickier way, but a way which works, is to
+ * always map the "LAST" BIU segment to frag-number 2. Here's the trickery:
+ * if we add frag-number 2, which we know to be the "LAST" BIU segment,
+ * and the reassembly code tells us that the the BIU is still not reassmebled,
+ * then, owing to the, ahem, /fact/, that fragmented BIU segments arrive
+ * in order :), we know that 1) "FIRST" did come, and 2) there's no "MIDDLE",
+ * because this BIU was fragmented into 2 frames, not 3. So, we'll be
+ * tricky and add a zero-length "MIDDLE" BIU frame (i.e, frag-number 1)
+ * to complete the reassembly.
+ */
+static tvbuff_t*
+defragment_by_sequence(packet_info *pinfo, tvbuff_t *tvb, int offset, int mpf,
+ int id)
+{
+ fragment_data *fd_head;
+ int frag_number = -1;
+ int more_frags = TRUE;
+ tvbuff_t *rh_tvb = NULL;
+ gint frag_len;
+
+ /* Determine frag_number and more_frags */
+ switch(mpf) {
+ case MPF_WHOLE_BIU:
+ /* nothing */
+ break;
+ case MPF_FIRST_SEGMENT:
+ frag_number = FIRST_FRAG_NUMBER;
+ break;
+ case MPF_MIDDLE_SEGMENT:
+ frag_number = MIDDLE_FRAG_NUMBER;
+ break;
+ case MPF_LAST_SEGMENT:
+ frag_number = LAST_FRAG_NUMBER;
+ more_frags = FALSE;
+ break;
+ default:
+ g_assert_not_reached();
}
- if (tvb_offset_exists(tvb, offset+1)) {
- dissect_data(tvb, offset, pinfo, tree);
+ /* If sna_defragment is on, and this is a fragment.. */
+ if (frag_number > -1) {
+ /* XXX - check length ??? */
+ frag_len = tvb_reported_length_remaining(tvb, offset);
+ if (tvb_bytes_exist(tvb, offset, frag_len)) {
+ fd_head = fragment_add_seq(tvb, offset, pinfo, id,
+ sna_fragment_table, frag_number, frag_len,
+ more_frags);
+
+ /* We added the LAST segment and reassembly didn't
+ * complete. Insert a zero-length MIDDLE segment to
+ * turn a 2-frame BIU-fragmentation into a 3-frame
+ * BIU-fragmentation (empty middle frag).
+ * See above long comment about this trickery. */
+
+ if (mpf == MPF_LAST_SEGMENT && !fd_head) {
+ fd_head = fragment_add_seq(tvb, offset, pinfo,
+ id, sna_fragment_table,
+ MIDDLE_FRAG_NUMBER, 0, TRUE);
+ }
+
+ if (fd_head != NULL) {
+ /* We have the complete reassembled payload. */
+ rh_tvb = tvb_new_real_data(fd_head->data,
+ fd_head->len, fd_head->len);
+
+ /* Add the tvbuff to the chain of tvbuffs
+ * so that it will get cleaned up too. */
+ tvb_set_child_real_data_tvbuff(tvb, rh_tvb);
+
+ /* Add the defragmented data to the data
+ * source list. */
+ add_new_data_source(pinfo, rh_tvb,
+ "Reassembled SNA BIU");
+ }
+ }
}
+ return rh_tvb;
}
#define SNA_FID01_ADDR_LEN 2
if (tree) {
/* Byte 0 */
th_0 = tvb_get_guint8(tvb, 0);
- bf_item = proto_tree_add_uint(tree, hf_sna_th_0, tvb, 0, 1, th_0);
+ bf_item = proto_tree_add_uint(tree, hf_sna_th_0, tvb, 0, 1,
+ th_0);
bf_tree = proto_item_add_subtree(bf_item, ett_sna_th_fid);
proto_tree_add_uint(bf_tree, hf_sna_th_fid, tvb, 0, 1, th_0);
SET_ADDRESS(&pinfo->net_dst, AT_SNA, SNA_FID01_ADDR_LEN, ptr);
SET_ADDRESS(&pinfo->dst, AT_SNA, SNA_FID01_ADDR_LEN, ptr);
- if (tree) {
+ if (tree)
proto_tree_add_item(tree, hf_sna_th_oaf, tvb, 4, 2, FALSE);
- }
/* Set SRC addr */
ptr = tvb_get_ptr(tvb, 4, SNA_FID01_ADDR_LEN);
SET_ADDRESS(&pinfo->src, AT_SNA, SNA_FID01_ADDR_LEN, ptr);
/* If we're not filling a proto_tree, return now */
- if (tree) {
+ if (tree)
return bytes_in_header;
- }
proto_tree_add_item(tree, hf_sna_th_snf, tvb, 6, 2, FALSE);
proto_tree_add_item(tree, hf_sna_th_dcf, tvb, 8, 2, FALSE);
/* FID Type 2 */
static int
-dissect_fid2(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
+dissect_fid2(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree,
+ tvbuff_t **rh_tvb_ptr, next_dissection_t *continue_dissecting)
{
proto_tree *bf_tree;
proto_item *bf_item;
guint8 th_0=0, daf=0, oaf=0;
const guint8 *ptr;
+ unsigned int mpf, id;
const int bytes_in_header = 6;
+ th_0 = tvb_get_guint8(tvb, 0);
+ mpf = mpf_value(th_0);
+
if (tree) {
- th_0 = tvb_get_guint8(tvb, 0);
daf = tvb_get_guint8(tvb, 2);
oaf = tvb_get_guint8(tvb, 3);
/* Byte 0 */
- bf_item = proto_tree_add_uint(tree, hf_sna_th_0, tvb, 0, 1, th_0);
+ bf_item = proto_tree_add_uint(tree, hf_sna_th_0, tvb, 0, 1,
+ th_0);
bf_tree = proto_item_add_subtree(bf_item, ett_sna_th_fid);
proto_tree_add_uint(bf_tree, hf_sna_th_fid, tvb, 0, 1, th_0);
proto_tree_add_uint(bf_tree, hf_sna_th_odai,tvb, 0, 1, th_0);
proto_tree_add_uint(bf_tree, hf_sna_th_efi, tvb, 0, 1, th_0);
+
/* Byte 1 */
proto_tree_add_text(tree, tvb, 1, 1, "Reserved");
/* Byte 2 */
proto_tree_add_uint_format(tree, hf_sna_th_daf, tvb, 2, 1, daf,
- "Destination Address Field: 0x%02x", daf);
+ "Destination Address Field: 0x%02x", daf);
}
/* Set DST addr */
if (tree) {
/* Byte 3 */
proto_tree_add_uint_format(tree, hf_sna_th_oaf, tvb, 3, 1, oaf,
- "Origin Address Field: 0x%02x", oaf);
+ "Origin Address Field: 0x%02x", oaf);
}
/* Set SRC addr */
SET_ADDRESS(&pinfo->net_src, AT_SNA, SNA_FID2_ADDR_LEN, ptr);
SET_ADDRESS(&pinfo->src, AT_SNA, SNA_FID2_ADDR_LEN, ptr);
- if (tree) {
- proto_tree_add_item(tree, hf_sna_th_snf, tvb, 4, 2, FALSE);
+ id = tvb_get_ntohs(tvb, 4);
+ if (tree)
+ proto_tree_add_uint(tree, hf_sna_th_snf, tvb, 4, 2, id);
+
+ if (mpf != MPF_WHOLE_BIU && !sna_defragment) {
+ if (mpf == MPF_FIRST_SEGMENT) {
+ *continue_dissecting = rh_only;
+ } else {
+ *continue_dissecting = stop_here;
+ }
+
+ }
+ else if (sna_defragment) {
+ *rh_tvb_ptr = defragment_by_sequence(pinfo, tvb,
+ bytes_in_header, mpf, id);
}
return bytes_in_header;
const int bytes_in_header = 2;
/* If we're not filling a proto_tree, return now */
- if (!tree) {
+ if (!tree)
return bytes_in_header;
- }
th_0 = tvb_get_guint8(tvb, 0);
return bytes_in_header;
}
-
static int
dissect_fid4(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
{
const int bytes_in_header = 26;
/* If we're not filling a proto_tree, return now */
- if (!tree) {
+ if (!tree)
return bytes_in_header;
- }
- if (tree) {
- th_byte = tvb_get_guint8(tvb, offset);
+ th_byte = tvb_get_guint8(tvb, offset);
- /* Create the bitfield tree */
- bf_item = proto_tree_add_uint(tree, hf_sna_th_0, tvb, offset, 1, th_byte);
- bf_tree = proto_item_add_subtree(bf_item, ett_sna_th_fid);
+ /* Create the bitfield tree */
+ bf_item = proto_tree_add_uint(tree, hf_sna_th_0, tvb, offset,
+ 1, th_byte);
+ bf_tree = proto_item_add_subtree(bf_item, ett_sna_th_fid);
- /* Byte 0 */
- proto_tree_add_uint(bf_tree, hf_sna_th_fid, tvb, offset, 1, th_byte);
- proto_tree_add_uint(bf_tree, hf_sna_th_tg_sweep, tvb, offset, 1, th_byte);
- proto_tree_add_uint(bf_tree, hf_sna_th_er_vr_supp_ind, tvb, offset, 1, th_byte);
- proto_tree_add_uint(bf_tree, hf_sna_th_vr_pac_cnt_ind, tvb, offset, 1, th_byte);
- proto_tree_add_uint(bf_tree, hf_sna_th_ntwk_prty, tvb, offset, 1, th_byte);
+ /* Byte 0 */
+ proto_tree_add_uint(bf_tree, hf_sna_th_fid, tvb,
+ offset, 1, th_byte);
+ proto_tree_add_uint(bf_tree, hf_sna_th_tg_sweep, tvb,
+ offset, 1, th_byte);
+ proto_tree_add_uint(bf_tree, hf_sna_th_er_vr_supp_ind, tvb,
+ offset, 1, th_byte);
+ proto_tree_add_uint(bf_tree, hf_sna_th_vr_pac_cnt_ind, tvb,
+ offset, 1, th_byte);
+ proto_tree_add_uint(bf_tree, hf_sna_th_ntwk_prty, tvb,
+ offset, 1, th_byte);
- offset += 1;
- th_byte = tvb_get_guint8(tvb, offset);
+ offset += 1;
+ th_byte = tvb_get_guint8(tvb, offset);
- /* Create the bitfield tree */
- bf_item = proto_tree_add_text(tree, tvb, offset, 1, "Transmision Header Byte 1");
- bf_tree = proto_item_add_subtree(bf_item, ett_sna_th_fid);
+ /* Create the bitfield tree */
+ bf_item = proto_tree_add_text(tree, tvb, offset, 1,
+ "Transmision Header Byte 1");
+ bf_tree = proto_item_add_subtree(bf_item, ett_sna_th_fid);
- /* Byte 1 */
- proto_tree_add_uint(bf_tree, hf_sna_th_tgsf, tvb, offset, 1, th_byte);
- proto_tree_add_boolean(bf_tree, hf_sna_th_mft, tvb, offset, 1, th_byte);
- proto_tree_add_uint(bf_tree, hf_sna_th_piubf, tvb, offset, 1, th_byte);
+ /* Byte 1 */
+ proto_tree_add_uint(bf_tree, hf_sna_th_tgsf, tvb, offset, 1,
+ th_byte);
+ proto_tree_add_boolean(bf_tree, hf_sna_th_mft, tvb, offset, 1,
+ th_byte);
+ proto_tree_add_uint(bf_tree, hf_sna_th_piubf, tvb, offset, 1,
+ th_byte);
- mft = th_byte & 0x04;
- offset += 1;
- th_byte = tvb_get_guint8(tvb, offset);
+ mft = th_byte & 0x04;
+ offset += 1;
+ th_byte = tvb_get_guint8(tvb, offset);
- /* Create the bitfield tree */
- bf_item = proto_tree_add_text(tree, tvb, offset, 1, "Transmision Header Byte 2");
- bf_tree = proto_item_add_subtree(bf_item, ett_sna_th_fid);
+ /* Create the bitfield tree */
+ bf_item = proto_tree_add_text(tree, tvb, offset, 1,
+ "Transmision Header Byte 2");
+ bf_tree = proto_item_add_subtree(bf_item, ett_sna_th_fid);
- /* Byte 2 */
- if (mft) {
- proto_tree_add_uint(bf_tree, hf_sna_th_nlpoi, tvb, offset, 1, th_byte);
- proto_tree_add_uint(bf_tree, hf_sna_th_nlp_cp, tvb, offset, 1, th_byte);
- }
- else {
- proto_tree_add_uint(bf_tree, hf_sna_th_iern, tvb, offset, 1, th_byte);
- }
- proto_tree_add_uint(bf_tree, hf_sna_th_ern, tvb, offset, 1, th_byte);
+ /* Byte 2 */
+ if (mft) {
+ proto_tree_add_uint(bf_tree, hf_sna_th_nlpoi, tvb,
+ offset, 1, th_byte);
+ proto_tree_add_uint(bf_tree, hf_sna_th_nlp_cp, tvb,
+ offset, 1, th_byte);
+ } else {
+ proto_tree_add_uint(bf_tree, hf_sna_th_iern, tvb,
+ offset, 1, th_byte);
+ }
+ proto_tree_add_uint(bf_tree, hf_sna_th_ern, tvb, offset, 1,
+ th_byte);
- offset += 1;
- th_byte = tvb_get_guint8(tvb, offset);
+ offset += 1;
+ th_byte = tvb_get_guint8(tvb, offset);
- /* Create the bitfield tree */
- bf_item = proto_tree_add_text(tree, tvb, offset, 1, "Transmision Header Byte 3");
- bf_tree = proto_item_add_subtree(bf_item, ett_sna_th_fid);
+ /* Create the bitfield tree */
+ bf_item = proto_tree_add_text(tree, tvb, offset, 1,
+ "Transmision Header Byte 3");
+ bf_tree = proto_item_add_subtree(bf_item, ett_sna_th_fid);
- /* Byte 3 */
- proto_tree_add_uint(bf_tree, hf_sna_th_vrn, tvb, offset, 1, th_byte);
- proto_tree_add_uint(bf_tree, hf_sna_th_tpf, tvb, offset, 1, th_byte);
+ /* Byte 3 */
+ proto_tree_add_uint(bf_tree, hf_sna_th_vrn, tvb, offset, 1,
+ th_byte);
+ proto_tree_add_uint(bf_tree, hf_sna_th_tpf, tvb, offset, 1,
+ th_byte);
- offset += 1;
- th_word = tvb_get_ntohs(tvb, offset);
+ offset += 1;
+ th_word = tvb_get_ntohs(tvb, offset);
- /* Create the bitfield tree */
- bf_item = proto_tree_add_text(tree, tvb, offset, 2, "Transmision Header Bytes 4-5");
- bf_tree = proto_item_add_subtree(bf_item, ett_sna_th_fid);
+ /* Create the bitfield tree */
+ bf_item = proto_tree_add_text(tree, tvb, offset, 2,
+ "Transmision Header Bytes 4-5");
+ bf_tree = proto_item_add_subtree(bf_item, ett_sna_th_fid);
- /* Bytes 4-5 */
- proto_tree_add_uint(bf_tree, hf_sna_th_vr_cwi, tvb, offset, 2, th_word);
- proto_tree_add_boolean(bf_tree, hf_sna_th_tg_nonfifo_ind, tvb, offset, 2, th_word);
- proto_tree_add_uint(bf_tree, hf_sna_th_vr_sqti, tvb, offset, 2, th_word);
+ /* Bytes 4-5 */
+ proto_tree_add_uint(bf_tree, hf_sna_th_vr_cwi, tvb,
+ offset, 2, th_word);
+ proto_tree_add_boolean(bf_tree, hf_sna_th_tg_nonfifo_ind, tvb,
+ offset, 2, th_word);
+ proto_tree_add_uint(bf_tree, hf_sna_th_vr_sqti, tvb,
+ offset, 2, th_word);
- /* I'm not sure about byte-order on this one... */
- proto_tree_add_uint(bf_tree, hf_sna_th_tg_snf, tvb, offset, 2, th_word);
+ /* I'm not sure about byte-order on this one... */
+ proto_tree_add_uint(bf_tree, hf_sna_th_tg_snf, tvb,
+ offset, 2, th_word);
- offset += 2;
- th_word = tvb_get_ntohs(tvb, offset);
+ offset += 2;
+ th_word = tvb_get_ntohs(tvb, offset);
- /* Create the bitfield tree */
- bf_item = proto_tree_add_text(tree, tvb, offset, 2, "Transmision Header Bytes 6-7");
- bf_tree = proto_item_add_subtree(bf_item, ett_sna_th_fid);
+ /* Create the bitfield tree */
+ bf_item = proto_tree_add_text(tree, tvb, offset, 2,
+ "Transmision Header Bytes 6-7");
+ bf_tree = proto_item_add_subtree(bf_item, ett_sna_th_fid);
- /* Bytes 6-7 */
- proto_tree_add_boolean(bf_tree, hf_sna_th_vrprq, tvb, offset, 2, th_word);
- proto_tree_add_boolean(bf_tree, hf_sna_th_vrprs, tvb, offset, 2, th_word);
- proto_tree_add_uint(bf_tree, hf_sna_th_vr_cwri, tvb, offset, 2, th_word);
- proto_tree_add_boolean(bf_tree, hf_sna_th_vr_rwi, tvb, offset, 2, th_word);
+ /* Bytes 6-7 */
+ proto_tree_add_boolean(bf_tree, hf_sna_th_vrprq, tvb, offset,
+ 2, th_word);
+ proto_tree_add_boolean(bf_tree, hf_sna_th_vrprs, tvb, offset,
+ 2, th_word);
+ proto_tree_add_uint(bf_tree, hf_sna_th_vr_cwri, tvb, offset,
+ 2, th_word);
+ proto_tree_add_boolean(bf_tree, hf_sna_th_vr_rwi, tvb, offset,
+ 2, th_word);
- /* I'm not sure about byte-order on this one... */
- proto_tree_add_uint(bf_tree, hf_sna_th_vr_snf_send, tvb, offset, 2, th_word);
+ /* I'm not sure about byte-order on this one... */
+ proto_tree_add_uint(bf_tree, hf_sna_th_vr_snf_send, tvb,
+ offset, 2, th_word);
- offset += 2;
- }
+ offset += 2;
dsaf = tvb_get_ntohl(tvb, 8);
- if (tree) {
- /* Bytes 8-11 */
- proto_tree_add_uint(tree, hf_sna_th_dsaf, tvb, offset, 4, dsaf);
+ /* Bytes 8-11 */
+ proto_tree_add_uint(tree, hf_sna_th_dsaf, tvb, offset, 4, dsaf);
- offset += 4;
- }
+ offset += 4;
osaf = tvb_get_ntohl(tvb, 12);
- if (tree) {
- /* Bytes 12-15 */
- proto_tree_add_uint(tree, hf_sna_th_osaf, tvb, offset, 4, osaf);
+ /* Bytes 12-15 */
+ proto_tree_add_uint(tree, hf_sna_th_osaf, tvb, offset, 4, osaf);
- offset += 4;
- th_byte = tvb_get_guint8(tvb, offset);
-
- /* Create the bitfield tree */
- bf_item = proto_tree_add_text(tree, tvb, offset, 2, "Transmision Header Byte 16");
- bf_tree = proto_item_add_subtree(bf_item, ett_sna_th_fid);
+ offset += 4;
+ th_byte = tvb_get_guint8(tvb, offset);
- /* Byte 16 */
- proto_tree_add_boolean(tree, hf_sna_th_snai, tvb, offset, 1, th_byte);
+ /* Create the bitfield tree */
+ bf_item = proto_tree_add_text(tree, tvb, offset, 2,
+ "Transmision Header Byte 16");
+ bf_tree = proto_item_add_subtree(bf_item, ett_sna_th_fid);
- /* We luck out here because in their infinite wisdom the SNA
- * architects placed the MPF and EFI fields in the same bitfield
- * locations, even though for FID4 they're not in byte 0.
- * Thank you IBM! */
- proto_tree_add_uint(tree, hf_sna_th_mpf, tvb, offset, 1, th_byte);
- proto_tree_add_uint(tree, hf_sna_th_efi, tvb, offset, 1, th_byte);
+ /* Byte 16 */
+ proto_tree_add_boolean(tree, hf_sna_th_snai, tvb, offset, 1, th_byte);
- offset += 2; /* 1 for byte 16, 1 for byte 17 which is reserved */
- }
+ /* We luck out here because in their infinite wisdom the SNA
+ * architects placed the MPF and EFI fields in the same bitfield
+ * locations, even though for FID4 they're not in byte 0.
+ * Thank you IBM! */
+ proto_tree_add_uint(tree, hf_sna_th_mpf, tvb, offset, 1, th_byte);
+ proto_tree_add_uint(tree, hf_sna_th_efi, tvb, offset, 1, th_byte);
+ offset += 2;
+ /* 1 for byte 16, 1 for byte 17 which is reserved */
def = tvb_get_ntohs(tvb, 18);
- if (tree) {
- /* Bytes 18-25 */
- proto_tree_add_uint(tree, hf_sna_th_def, tvb, offset, 2, def);
- }
+ /* Bytes 18-25 */
+ proto_tree_add_uint(tree, hf_sna_th_def, tvb, offset, 2, def);
/* Addresses in FID 4 are discontiguous, sigh */
dst.saf = dsaf;
dst.ef = def;
- SET_ADDRESS(&pinfo->net_dst, AT_SNA, SNA_FID_TYPE_4_ADDR_LEN, (guint8* )&dst);
- SET_ADDRESS(&pinfo->dst, AT_SNA, SNA_FID_TYPE_4_ADDR_LEN, (guint8 *)&dst);
-
+ SET_ADDRESS(&pinfo->net_dst, AT_SNA, SNA_FID_TYPE_4_ADDR_LEN,
+ (guint8* )&dst);
+ SET_ADDRESS(&pinfo->dst, AT_SNA, SNA_FID_TYPE_4_ADDR_LEN,
+ (guint8 *)&dst);
oef = tvb_get_ntohs(tvb, 20);
- if (tree) {
- proto_tree_add_uint(tree, hf_sna_th_oef, tvb, offset+2, 2, oef);
- }
+ proto_tree_add_uint(tree, hf_sna_th_oef, tvb, offset+2, 2, oef);
/* Addresses in FID 4 are discontiguous, sigh */
src.saf = osaf;
src.ef = oef;
- SET_ADDRESS(&pinfo->net_src, AT_SNA, SNA_FID_TYPE_4_ADDR_LEN, (guint8 *)&src);
- SET_ADDRESS(&pinfo->src, AT_SNA, SNA_FID_TYPE_4_ADDR_LEN, (guint8 *)&src);
+ SET_ADDRESS(&pinfo->net_src, AT_SNA, SNA_FID_TYPE_4_ADDR_LEN,
+ (guint8 *)&src);
+ SET_ADDRESS(&pinfo->src, AT_SNA, SNA_FID_TYPE_4_ADDR_LEN,
+ (guint8 *)&src);
- if (tree) {
- proto_tree_add_item(tree, hf_sna_th_snf, tvb, offset+4, 2, FALSE);
- proto_tree_add_item(tree, hf_sna_th_dcf, tvb, offset+6, 2, FALSE);
- }
+ proto_tree_add_item(tree, hf_sna_th_snf, tvb, offset+4, 2, FALSE);
+ proto_tree_add_item(tree, hf_sna_th_dcf, tvb, offset+6, 2, FALSE);
return bytes_in_header;
}
const int bytes_in_header = 12;
/* If we're not filling a proto_tree, return now */
- if (!tree) {
+ if (!tree)
return bytes_in_header;
- }
th_0 = tvb_get_guint8(tvb, 0);
proto_tree *bf_tree;
proto_item *bf_item;
guint8 th_0;
-
+
const int bytes_in_header = 26;
/* If we're not filling a proto_tree, return now */
- if (!tree) {
+ if (!tree)
return bytes_in_header;
- }
th_0 = tvb_get_guint8(tvb, 0);
return bytes_in_header;
}
+static void
+dissect_fid(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree,
+ proto_tree *parent_tree)
+{
+
+ proto_tree *th_tree = NULL, *rh_tree = NULL;
+ proto_item *th_ti = NULL, *rh_ti = NULL;
+ guint8 th_fid;
+ int th_header_len = 0;
+ int offset, rh_offset;
+ tvbuff_t *rh_tvb = NULL;
+ next_dissection_t continue_dissecting = everything;
+
+ /* Transmission Header Format Identifier */
+ th_fid = hi_nibble(tvb_get_guint8(tvb, 0));
+
+ /* Summary information */
+ if (check_col(pinfo->cinfo, COL_INFO))
+ col_add_str(pinfo->cinfo, COL_INFO,
+ val_to_str(th_fid, sna_th_fid_vals, "Unknown FID: %01x"));
+
+ if (tree) {
+ /* --- TH --- */
+ /* Don't bother setting length. We'll set it later after we
+ * find the length of TH */
+ th_ti = proto_tree_add_item(tree, hf_sna_th, tvb, 0, -1,
+ FALSE);
+ th_tree = proto_item_add_subtree(th_ti, ett_sna_th);
+ }
+
+ /* Get size of TH */
+ switch(th_fid) {
+ case 0x0:
+ case 0x1:
+ th_header_len = dissect_fid0_1(tvb, pinfo, th_tree);
+ break;
+ case 0x2:
+ th_header_len = dissect_fid2(tvb, pinfo, th_tree,
+ &rh_tvb, &continue_dissecting);
+ break;
+ case 0x3:
+ th_header_len = dissect_fid3(tvb, th_tree);
+ break;
+ case 0x4:
+ th_header_len = dissect_fid4(tvb, pinfo, th_tree);
+ break;
+ case 0x5:
+ th_header_len = dissect_fid5(tvb, th_tree);
+ break;
+ case 0xf:
+ th_header_len = dissect_fidf(tvb, th_tree);
+ break;
+ default:
+ call_dissector(data_handle,
+ tvb_new_subset(tvb, 1, -1, -1), pinfo, parent_tree);
+ return;
+ }
+
+ offset = th_header_len;
+
+ /* Short-circuit ? */
+ if (continue_dissecting == stop_here) {
+ if (tree) {
+ proto_tree_add_text(tree, tvb, offset, -1,
+ "BIU segment data");
+ }
+ return;
+ }
+
+ /* If the FID dissector function didn't create an rh_tvb, then we just
+ * use the rest of our tvbuff as the rh_tvb. */
+ if (!rh_tvb)
+ rh_tvb = tvb_new_subset(tvb, offset, -1, -1);
+ rh_offset = 0;
+
+ /* Process the rest of the SNA packet, starting with RH */
+ if (tree) {
+ proto_item_set_len(th_ti, th_header_len);
+
+ /* --- RH --- */
+ rh_ti = proto_tree_add_item(tree, hf_sna_rh, rh_tvb, rh_offset,
+ RH_LEN, FALSE);
+ rh_tree = proto_item_add_subtree(rh_ti, ett_sna_rh);
+ dissect_rh(rh_tvb, rh_offset, rh_tree);
+ }
+
+ rh_offset += RH_LEN;
+
+ if (tvb_offset_exists(rh_tvb, rh_offset)) {
+ /* Short-circuit ? */
+ if (continue_dissecting == rh_only) {
+ if (tree)
+ proto_tree_add_text(tree, rh_tvb, rh_offset, -1,
+ "BIU segment data");
+ return;
+ }
+
+ call_dissector(data_handle,
+ tvb_new_subset(rh_tvb, rh_offset, -1, -1),
+ pinfo, parent_tree);
+ }
+}
+
+/* --------------------------------------------------------------------
+ * Chapter 5 Request/Response Headers (RHs)
+ * --------------------------------------------------------------------
+ */
-/* RH */
static void
dissect_rh(tvbuff_t *tvb, int offset, proto_tree *tree)
{
gboolean is_response;
guint8 rh_0, rh_1, rh_2;
+ if (!tree)
+ return;
/* Create the bitfield tree for byte 0*/
rh_0 = tvb_get_guint8(tvb, offset);
bf_tree = proto_item_add_subtree(bf_item, ett_sna_rh_0);
proto_tree_add_uint(bf_tree, hf_sna_rh_rri, tvb, offset, 1, rh_0);
- proto_tree_add_uint(bf_tree, hf_sna_rh_ru_category, tvb, offset, 1, rh_0);
+ proto_tree_add_uint(bf_tree, hf_sna_rh_ru_category, tvb, offset, 1,
+ rh_0);
proto_tree_add_boolean(bf_tree, hf_sna_rh_fi, tvb, offset, 1, rh_0);
proto_tree_add_boolean(bf_tree, hf_sna_rh_sdi, tvb, offset, 1, rh_0);
proto_tree_add_boolean(bf_tree, hf_sna_rh_bci, tvb, offset, 1, rh_0);
proto_tree_add_boolean(bf_tree, hf_sna_rh_dr1, tvb, offset, 1, rh_1);
- if (!is_response) {
- proto_tree_add_boolean(bf_tree, hf_sna_rh_lcci, tvb, offset, 1, rh_1);
- }
+ if (!is_response)
+ proto_tree_add_boolean(bf_tree, hf_sna_rh_lcci, tvb, offset, 1,
+ rh_1);
proto_tree_add_boolean(bf_tree, hf_sna_rh_dr2, tvb, offset, 1, rh_1);
if (is_response) {
- proto_tree_add_boolean(bf_tree, hf_sna_rh_rti, tvb, offset, 1, rh_1);
- }
- else {
- proto_tree_add_boolean(bf_tree, hf_sna_rh_eri, tvb, offset, 1, rh_1);
- proto_tree_add_boolean(bf_tree, hf_sna_rh_rlwi, tvb, offset, 1, rh_1);
+ proto_tree_add_boolean(bf_tree, hf_sna_rh_rti, tvb, offset, 1,
+ rh_1);
+ } else {
+ proto_tree_add_boolean(bf_tree, hf_sna_rh_eri, tvb, offset, 1,
+ rh_1);
+ proto_tree_add_boolean(bf_tree, hf_sna_rh_rlwi, tvb, offset, 1,
+ rh_1);
}
proto_tree_add_boolean(bf_tree, hf_sna_rh_qri, tvb, offset, 1, rh_1);
if (!is_response) {
bf_tree = proto_item_add_subtree(bf_item, ett_sna_rh_2);
- proto_tree_add_boolean(bf_tree, hf_sna_rh_bbi, tvb, offset, 1, rh_2);
- proto_tree_add_boolean(bf_tree, hf_sna_rh_ebi, tvb, offset, 1, rh_2);
- proto_tree_add_boolean(bf_tree, hf_sna_rh_cdi, tvb, offset, 1, rh_2);
- proto_tree_add_uint(bf_tree, hf_sna_rh_csi, tvb, offset, 1, rh_2);
- proto_tree_add_boolean(bf_tree, hf_sna_rh_edi, tvb, offset, 1, rh_2);
- proto_tree_add_boolean(bf_tree, hf_sna_rh_pdi, tvb, offset, 1, rh_2);
- proto_tree_add_boolean(bf_tree, hf_sna_rh_cebi, tvb, offset, 1, rh_2);
+ proto_tree_add_boolean(bf_tree, hf_sna_rh_bbi, tvb, offset, 1,
+ rh_2);
+ proto_tree_add_boolean(bf_tree, hf_sna_rh_ebi, tvb, offset, 1,
+ rh_2);
+ proto_tree_add_boolean(bf_tree, hf_sna_rh_cdi, tvb, offset, 1,
+ rh_2);
+ proto_tree_add_uint(bf_tree, hf_sna_rh_csi, tvb, offset, 1,
+ rh_2);
+ proto_tree_add_boolean(bf_tree, hf_sna_rh_edi, tvb, offset, 1,
+ rh_2);
+ proto_tree_add_boolean(bf_tree, hf_sna_rh_pdi, tvb, offset, 1,
+ rh_2);
+ proto_tree_add_boolean(bf_tree, hf_sna_rh_cebi, tvb, offset, 1,
+ rh_2);
}
/* XXX - check for sdi. If TRUE, the next 4 bytes will be sense data */
}
+/* --------------------------------------------------------------------
+ * Chapter 6 Request/Response Units (RUs)
+ * --------------------------------------------------------------------
+ */
+
+/* --------------------------------------------------------------------
+ * Chapter 9 Common Fields
+ * --------------------------------------------------------------------
+ */
+
+static void
+dissect_control_05hpr(tvbuff_t *tvb, proto_tree *tree, int hpr,
+ enum parse parse)
+{
+ proto_tree *bf_tree;
+ proto_item *bf_item;
+ guint8 type;
+ guint16 offset, len, pad;
+
+ if (!tree)
+ return;
+
+ type = tvb_get_guint8(tvb, 2);
+
+ bf_item = proto_tree_add_uint(tree, hf_sna_control_05_type, tvb,
+ 2, 1, type);
+ bf_tree = proto_item_add_subtree(bf_item, ett_sna_control_05hpr_type);
+
+ proto_tree_add_boolean(bf_tree, hf_sna_control_05_ptp, tvb, 2, 1, type);
+ proto_tree_add_text(tree, tvb, 3, 1, "Reserved");
+
+ offset = 4;
+
+ while (tvb_offset_exists(tvb, offset)) {
+ if (parse == LT) {
+ len = tvb_get_guint8(tvb, offset+0);
+ } else {
+ len = tvb_get_guint8(tvb, offset+1);
+ }
+ if (len) {
+ dissect_control(tvb, offset, len, tree, hpr, parse);
+ pad = (len+3) & 0xfffc;
+ if (pad > len)
+ proto_tree_add_text(tree, tvb, offset+len,
+ pad-len, "Padding");
+ offset += pad;
+ } else {
+ return;
+ }
+ }
+}
+
+static void
+dissect_control_05(tvbuff_t *tvb, proto_tree *tree)
+{
+ if(!tree)
+ return;
+
+ proto_tree_add_item(tree, hf_sna_control_05_delay, tvb, 2, 2, FALSE);
+}
+
+static void
+dissect_control_0e(tvbuff_t *tvb, proto_tree *tree)
+{
+ gint len;
+ guint8 *buf;
+
+ if (!tree)
+ return;
+
+ proto_tree_add_item(tree, hf_sna_control_0e_type, tvb, 2, 1, FALSE);
+
+ len = tvb_reported_length_remaining(tvb, 3);
+ if (len <= 0)
+ return;
+
+ buf = tvb_get_string(tvb, 3, len);
+ EBCDIC_to_ASCII(buf, len);
+ proto_tree_add_string(tree, hf_sna_control_0e_value, tvb, 3, len, buf);
+ g_free(buf);
+}
+
+static void
+dissect_control(tvbuff_t *parent_tvb, int offset, int control_len,
+ proto_tree *tree, int hpr, enum parse parse)
+{
+ tvbuff_t *tvb;
+ gint length, reported_length;
+ proto_tree *sub_tree;
+ proto_item *sub_item;
+ int len, key;
+ gint ett;
+
+ length = tvb_length_remaining(parent_tvb, offset);
+ reported_length = tvb_reported_length_remaining(parent_tvb, offset);
+ if (control_len < length)
+ length = control_len;
+ if (control_len < reported_length)
+ reported_length = control_len;
+ tvb = tvb_new_subset(parent_tvb, offset, length, reported_length);
+
+ sub_tree = NULL;
+
+ if (parse == LT) {
+ len = tvb_get_guint8(tvb, 0);
+ key = tvb_get_guint8(tvb, 1);
+ } else {
+ key = tvb_get_guint8(tvb, 0);
+ len = tvb_get_guint8(tvb, 1);
+ }
+ ett = ett_sna_control_un;
+
+ if (tree) {
+ if (key == 5) {
+ if (hpr) ett = ett_sna_control_05hpr;
+ else ett = ett_sna_control_05;
+ }
+ if (key == 0x0e) ett = ett_sna_control_0e;
+
+ if (((key == 0) || (key == 3) || (key == 5)) && hpr)
+ sub_item = proto_tree_add_text(tree, tvb, 0, -1,
+ val_to_str(key, sna_control_hpr_vals,
+ "Unknown Control Vector"));
+ else
+ sub_item = proto_tree_add_text(tree, tvb, 0, -1,
+ val_to_str(key, sna_control_vals,
+ "Unknown Control Vector"));
+ sub_tree = proto_item_add_subtree(sub_item, ett);
+ if (parse == LT) {
+ proto_tree_add_uint(sub_tree, hf_sna_control_len,
+ tvb, 0, 1, len);
+ if (((key == 0) || (key == 3) || (key == 5)) && hpr)
+ proto_tree_add_uint(sub_tree,
+ hf_sna_control_hprkey, tvb, 1, 1, key);
+ else
+ proto_tree_add_uint(sub_tree,
+ hf_sna_control_key, tvb, 1, 1, key);
+ } else {
+ if (((key == 0) || (key == 3) || (key == 5)) && hpr)
+ proto_tree_add_uint(sub_tree,
+ hf_sna_control_hprkey, tvb, 0, 1, key);
+ else
+ proto_tree_add_uint(sub_tree,
+ hf_sna_control_key, tvb, 0, 1, key);
+ proto_tree_add_uint(sub_tree, hf_sna_control_len,
+ tvb, 1, 1, len);
+ }
+ }
+ switch(key) {
+ case 0x05:
+ if (hpr)
+ dissect_control_05hpr(tvb, sub_tree, hpr,
+ parse);
+ else
+ dissect_control_05(tvb, sub_tree);
+ break;
+ case 0x0e:
+ dissect_control_0e(tvb, sub_tree);
+ break;
+ }
+}
+
+/* --------------------------------------------------------------------
+ * Chapter 11 Function Management (FM) Headers
+ * --------------------------------------------------------------------
+ */
+
+/* --------------------------------------------------------------------
+ * Chapter 12 Presentation Services (PS) Headers
+ * --------------------------------------------------------------------
+ */
+
+/* --------------------------------------------------------------------
+ * Chapter 13 GDS Variables
+ * --------------------------------------------------------------------
+ */
+
+static void
+dissect_gds(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree,
+ proto_tree *parent_tree)
+{
+ guint16 length;
+ guint16 type;
+ int cont;
+ int offset;
+ proto_tree *gds_tree;
+ proto_item *gds_item;
+
+ offset = 0;
+ cont = 1;
+ type = tvb_get_ntohs(tvb, offset+2);
+
+ while (cont) {
+ length = tvb_get_ntohs(tvb, offset) & 0x7fff;
+ cont = (tvb_get_ntohs(tvb, offset) & 0x8000) ? 1 : 0;
+ type = tvb_get_ntohs(tvb, offset+2);
+
+ if (length < 2 ) /* escape sequence ? */
+ return;
+ if (tree) {
+ gds_item = proto_tree_add_item(tree, hf_sna_gds, tvb,
+ offset, length, FALSE);
+ gds_tree = proto_item_add_subtree(gds_item,
+ ett_sna_gds);
+
+ proto_tree_add_uint(gds_tree, hf_sna_gds_len, tvb,
+ offset, 2, length);
+ proto_tree_add_boolean(gds_tree, hf_sna_gds_cont, tvb,
+ offset, 2, cont);
+ proto_tree_add_uint(gds_tree, hf_sna_gds_type, tvb,
+ offset+2, 2, type);
+ }
+ offset += length;
+ }
+ if (tvb_offset_exists(tvb, offset))
+ call_dissector(data_handle,
+ tvb_new_subset(tvb, offset, -1, -1), pinfo, parent_tree);
+}
+
+/* --------------------------------------------------------------------
+ * General stuff
+ * --------------------------------------------------------------------
+ */
+
+static void
+dissect_sna(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
+{
+ guint8 fid;
+ proto_tree *sna_tree = NULL;
+ proto_item *sna_ti = NULL;
+
+ if (check_col(pinfo->cinfo, COL_PROTOCOL))
+ col_set_str(pinfo->cinfo, COL_PROTOCOL, "SNA");
+ if (check_col(pinfo->cinfo, COL_INFO))
+ col_clear(pinfo->cinfo, COL_INFO);
+
+ /* SNA data should be printed in EBCDIC, not ASCII */
+ pinfo->fd->flags.encoding = CHAR_EBCDIC;
+
+ if (tree) {
+
+ /* Don't bother setting length. We'll set it later after we find
+ * the lengths of TH/RH/RU */
+ sna_ti = proto_tree_add_item(tree, proto_sna, tvb, 0, -1,
+ FALSE);
+ sna_tree = proto_item_add_subtree(sna_ti, ett_sna);
+ }
+
+ /* Transmission Header Format Identifier */
+ fid = hi_nibble(tvb_get_guint8(tvb, 0));
+ switch(fid) {
+ case 0xa: /* HPR Network Layer Packet */
+ case 0xb:
+ case 0xc:
+ case 0xd:
+ dissect_nlp(tvb, pinfo, sna_tree, tree);
+ break;
+ default:
+ dissect_fid(tvb, pinfo, sna_tree, tree);
+ }
+}
+
+static void
+dissect_sna_xid(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
+{
+ proto_tree *sna_tree = NULL;
+ proto_item *sna_ti = NULL;
+
+ if (check_col(pinfo->cinfo, COL_PROTOCOL))
+ col_set_str(pinfo->cinfo, COL_PROTOCOL, "SNA");
+ if (check_col(pinfo->cinfo, COL_INFO))
+ col_clear(pinfo->cinfo, COL_INFO);
+
+ /* SNA data should be printed in EBCDIC, not ASCII */
+ pinfo->fd->flags.encoding = CHAR_EBCDIC;
+
+ if (tree) {
+
+ /* Don't bother setting length. We'll set it later after we find
+ * the lengths of XID */
+ sna_ti = proto_tree_add_item(tree, proto_sna_xid, tvb, 0, -1,
+ FALSE);
+ sna_tree = proto_item_add_subtree(sna_ti, ett_sna);
+ }
+ dissect_xid(tvb, pinfo, sna_tree, tree);
+}
+
+static void
+sna_init(void)
+{
+ fragment_table_init(&sna_fragment_table);
+ reassembled_table_init(&sna_reassembled_table);
+}
+
+
void
proto_register_sna(void)
{
static hf_register_info hf[] = {
{ &hf_sna_th,
- { "Transmission Header", "sna.th", FT_NONE, BASE_NONE, NULL, 0x0,
- "", HFILL }},
+ { "Transmission Header", "sna.th", FT_NONE, BASE_NONE,
+ NULL, 0x0, "", HFILL }},
{ &hf_sna_th_0,
- { "Transmission Header Byte 0", "sna.th.0", FT_UINT8, BASE_HEX, NULL, 0x0,
- "Byte 0 of Tranmission Header contains FID, MPF, ODAI,"
- " and EFI as bitfields.", HFILL }},
+ { "Transmission Header Byte 0", "sna.th.0", FT_UINT8, BASE_HEX,
+ NULL, 0x0,
+ "TH Byte 0", HFILL }},
{ &hf_sna_th_fid,
- { "Format Identifer", "sna.th.fid", FT_UINT8, BASE_HEX, VALS(sna_th_fid_vals), 0xf0,
- "Format Identification", HFILL }},
+ { "Format Identifer", "sna.th.fid", FT_UINT8, BASE_HEX,
+ VALS(sna_th_fid_vals), 0xf0, "", HFILL }},
{ &hf_sna_th_mpf,
- { "Mapping Field", "sna.th.mpf", FT_UINT8, BASE_DEC, VALS(sna_th_mpf_vals), 0x0c,
- "The Mapping Field specifies whether the information field"
- " associated with the TH is a complete or partial BIU.", HFILL }},
+ { "Mapping Field", "sna.th.mpf", FT_UINT8,
+ BASE_DEC, VALS(sna_th_mpf_vals), 0x0c, "", HFILL }},
{ &hf_sna_th_odai,
- { "ODAI Assignment Indicator", "sna.th.odai", FT_UINT8, BASE_DEC, NULL, 0x02,
- "The ODAI indicates which node assigned the OAF'-DAF' values"
- " carried in the TH.", HFILL }},
+ { "ODAI Assignment Indicator", "sna.th.odai", FT_UINT8,
+ BASE_DEC, NULL, 0x02, "", HFILL }},
{ &hf_sna_th_efi,
- { "Expedited Flow Indicator", "sna.th.efi", FT_UINT8, BASE_DEC, VALS(sna_th_efi_vals), 0x01,
- "The EFI designates whether the PIU belongs to the normal"
- " or expedited flow.", HFILL }},
+ { "Expedited Flow Indicator", "sna.th.efi", FT_UINT8,
+ BASE_DEC, VALS(sna_th_efi_vals), 0x01, "", HFILL }},
{ &hf_sna_th_daf,
- { "Destination Address Field", "sna.th.daf", FT_UINT16, BASE_HEX, NULL, 0x0,
- "", HFILL }},
+ { "Destination Address Field", "sna.th.daf", FT_UINT16,
+ BASE_HEX, NULL, 0x0, "", HFILL }},
{ &hf_sna_th_oaf,
- { "Origin Address Field", "sna.th.oaf", FT_UINT16, BASE_HEX, NULL, 0x0,
- "", HFILL }},
+ { "Origin Address Field", "sna.th.oaf", FT_UINT16, BASE_HEX,
+ NULL, 0x0, "", HFILL }},
{ &hf_sna_th_snf,
- { "Sequence Number Field", "sna.th.snf", FT_UINT16, BASE_DEC, NULL, 0x0,
- "The Sequence Number Field contains a numerical identifier for"
- " the associated BIU.", HFILL }},
+ { "Sequence Number Field", "sna.th.snf", FT_UINT16, BASE_DEC,
+ NULL, 0x0, "", HFILL }},
{ &hf_sna_th_dcf,
- { "Data Count Field", "sna.th.dcf", FT_UINT16, BASE_DEC, NULL, 0x0,
- "A binary count of the number of bytes in the BIU or BIU segment associated "
- "with the tranmission header. The count does not include any of the bytes "
- "in the transmission header.", HFILL }},
+ { "Data Count Field", "sna.th.dcf", FT_UINT16, BASE_DEC,
+ NULL, 0x0, "", HFILL }},
{ &hf_sna_th_lsid,
- { "Local Session Identification", "sna.th.lsid", FT_UINT8, BASE_HEX, NULL, 0x0,
- "", HFILL }},
+ { "Local Session Identification", "sna.th.lsid", FT_UINT8,
+ BASE_HEX, NULL, 0x0, "", HFILL }},
{ &hf_sna_th_tg_sweep,
- { "Transmission Group Sweep", "sna.th.tg_sweep", FT_UINT8, BASE_DEC,
- VALS(sna_th_tg_sweep_vals), 0x08,
- "", HFILL }},
+ { "Transmission Group Sweep", "sna.th.tg_sweep", FT_UINT8,
+ BASE_DEC, VALS(sna_th_tg_sweep_vals), 0x08, "", HFILL }},
{ &hf_sna_th_er_vr_supp_ind,
- { "ER and VR Support Indicator", "sna.th.er_vr_supp_ind", FT_UINT8, BASE_DEC,
- VALS(sna_th_er_vr_supp_ind_vals), 0x04,
- "", HFILL }},
+ { "ER and VR Support Indicator", "sna.th.er_vr_supp_ind",
+ FT_UINT8, BASE_DEC, VALS(sna_th_er_vr_supp_ind_vals),
+ 0x04, "", HFILL }},
{ &hf_sna_th_vr_pac_cnt_ind,
- { "Virtual Route Pacing Count Indicator", "sna.th.vr_pac_cnt_ind",
- FT_UINT8, BASE_DEC, VALS(sna_th_vr_pac_cnt_ind_vals), 0x02,
- "", HFILL }},
+ { "Virtual Route Pacing Count Indicator",
+ "sna.th.vr_pac_cnt_ind", FT_UINT8, BASE_DEC,
+ VALS(sna_th_vr_pac_cnt_ind_vals), 0x02, "", HFILL }},
{ &hf_sna_th_ntwk_prty,
- { "Network Priority", "sna.th.ntwk_prty",
- FT_UINT8, BASE_DEC, VALS(sna_th_ntwk_prty_vals), 0x01,
- "", HFILL }},
+ { "Network Priority", "sna.th.ntwk_prty", FT_UINT8, BASE_DEC,
+ VALS(sna_th_ntwk_prty_vals), 0x01, "", HFILL }},
{ &hf_sna_th_tgsf,
- { "Transmission Group Segmenting Field", "sna.th.tgsf",
- FT_UINT8, BASE_HEX, VALS(sna_th_tgsf_vals), 0xc0,
- "", HFILL }},
+ { "Transmission Group Segmenting Field", "sna.th.tgsf",
+ FT_UINT8, BASE_HEX, VALS(sna_th_tgsf_vals), 0xc0,
+ "", HFILL }},
{ &hf_sna_th_mft,
- { "MPR FID4 Type", "sna.th.mft", FT_BOOLEAN, BASE_NONE, NULL, 0x04,
- "", HFILL }},
+ { "MPR FID4 Type", "sna.th.mft", FT_BOOLEAN, BASE_NONE,
+ NULL, 0x04, "", HFILL }},
{ &hf_sna_th_piubf,
- { "PIU Blocking Field", "sna.th.piubf", FT_UINT8, BASE_HEX,
- VALS(sna_th_piubf_vals), 0x03,
- "Specifies whether this frame contains a single PIU or multiple PIUs.", HFILL }},
+ { "PIU Blocking Field", "sna.th.piubf", FT_UINT8, BASE_HEX,
+ VALS(sna_th_piubf_vals), 0x03, "", HFILL }},
{ &hf_sna_th_iern,
- { "Initial Explicit Route Number", "sna.th.iern", FT_UINT8, BASE_DEC, NULL, 0xf0,
- "", HFILL }},
+ { "Initial Explicit Route Number", "sna.th.iern", FT_UINT8,
+ BASE_DEC, NULL, 0xf0, "", HFILL }},
{ &hf_sna_th_nlpoi,
- { "NLP Offset Indicator", "sna.th.nlpoi", FT_UINT8, BASE_DEC,
- VALS(sna_th_nlpoi_vals), 0x80,
- "", HFILL }},
+ { "NLP Offset Indicator", "sna.th.nlpoi", FT_UINT8, BASE_DEC,
+ VALS(sna_th_nlpoi_vals), 0x80, "", HFILL }},
{ &hf_sna_th_nlp_cp,
- { "NLP Count or Padding", "sna.th.nlp_cp", FT_UINT8, BASE_DEC, NULL, 0x70,
- "", HFILL }},
+ { "NLP Count or Padding", "sna.th.nlp_cp", FT_UINT8, BASE_DEC,
+ NULL, 0x70, "", HFILL }},
{ &hf_sna_th_ern,
- { "Explicit Route Number", "sna.th.ern", FT_UINT8, BASE_DEC, NULL, 0x0f,
- "The ERN in a TH identifies an explicit route direction of flow.", HFILL }},
+ { "Explicit Route Number", "sna.th.ern", FT_UINT8, BASE_DEC,
+ NULL, 0x0f, "", HFILL }},
{ &hf_sna_th_vrn,
- { "Virtual Route Number", "sna.th.vrn", FT_UINT8, BASE_DEC, NULL, 0xf0,
- "", HFILL }},
+ { "Virtual Route Number", "sna.th.vrn", FT_UINT8, BASE_DEC,
+ NULL, 0xf0, "", HFILL }},
{ &hf_sna_th_tpf,
- { "Transmission Priority Field", "sna.th.tpf", FT_UINT8, BASE_HEX,
- VALS(sna_th_tpf_vals), 0x03,
- "", HFILL }},
+ { "Transmission Priority Field", "sna.th.tpf", FT_UINT8,
+ BASE_HEX, VALS(sna_th_tpf_vals), 0x03, "", HFILL }},
{ &hf_sna_th_vr_cwi,
- { "Virtual Route Change Window Indicator", "sna.th.vr_cwi", FT_UINT16, BASE_DEC,
- VALS(sna_th_vr_cwi_vals), 0x8000,
- "Used to change the window size of the virtual route by 1.", HFILL }},
+ { "Virtual Route Change Window Indicator", "sna.th.vr_cwi",
+ FT_UINT16, BASE_DEC, VALS(sna_th_vr_cwi_vals), 0x8000,
+ "Change Window Indicator", HFILL }},
{ &hf_sna_th_tg_nonfifo_ind,
- { "Transmission Group Non-FIFO Indicator", "sna.th.tg_nonfifo_ind", FT_BOOLEAN, 16,
- TFS(&sna_th_tg_nonfifo_ind_truth), 0x4000,
- "Indicates whether or not FIFO discipline is to enforced in "
- "transmitting PIUs through the tranmission groups to prevent the PIUs "
- "getting out of sequence during transmission over the TGs.", HFILL }},
+ { "Transmission Group Non-FIFO Indicator",
+ "sna.th.tg_nonfifo_ind", FT_BOOLEAN, 16,
+ TFS(&sna_th_tg_nonfifo_ind_truth), 0x4000, "", HFILL }},
{ &hf_sna_th_vr_sqti,
- { "Virtual Route Sequence and Type Indicator", "sna.th.vr_sqti", FT_UINT16, BASE_HEX,
- VALS(sna_th_vr_sqti_vals), 0x3000,
- "Specifies the PIU type.", HFILL }},
+ { "Virtual Route Sequence and Type Indicator", "sna.th.vr_sqti",
+ FT_UINT16, BASE_HEX, VALS(sna_th_vr_sqti_vals), 0x3000,
+ "Route Sequence and Type", HFILL }},
{ &hf_sna_th_tg_snf,
- { "Transmission Group Sequence Number Field", "sna.th.tg_snf", FT_UINT16, BASE_DEC,
- NULL, 0x0fff,
- "", HFILL }},
+ { "Transmission Group Sequence Number Field", "sna.th.tg_snf",
+ FT_UINT16, BASE_DEC, NULL, 0x0fff, "", HFILL }},
{ &hf_sna_th_vrprq,
- { "Virtual Route Pacing Request", "sna.th.vrprq", FT_BOOLEAN, 16,
- TFS(&sna_th_vrprq_truth), 0x8000,
- "", HFILL }},
+ { "Virtual Route Pacing Request", "sna.th.vrprq", FT_BOOLEAN,
+ 16, TFS(&sna_th_vrprq_truth), 0x8000, "", HFILL }},
{ &hf_sna_th_vrprs,
- { "Virtual Route Pacing Response", "sna.th.vrprs", FT_BOOLEAN, 16,
- TFS(&sna_th_vrprs_truth), 0x4000,
- "", HFILL }},
+ { "Virtual Route Pacing Response", "sna.th.vrprs", FT_BOOLEAN,
+ 16, TFS(&sna_th_vrprs_truth), 0x4000, "", HFILL }},
{ &hf_sna_th_vr_cwri,
- { "Virtual Route Change Window Reply Indicator", "sna.th.vr_cwri", FT_UINT16, BASE_DEC,
- VALS(sna_th_vr_cwri_vals), 0x2000,
- "Permits changing of the window size by 1 for PIUs received by the "
- "sender of this bit.", HFILL }},
+ { "Virtual Route Change Window Reply Indicator",
+ "sna.th.vr_cwri", FT_UINT16, BASE_DEC,
+ VALS(sna_th_vr_cwri_vals), 0x2000, "", HFILL }},
{ &hf_sna_th_vr_rwi,
- { "Virtual Route Reset Window Indicator", "sna.th.vr_rwi", FT_BOOLEAN, 16,
- TFS(&sna_th_vr_rwi_truth), 0x1000,
- "Indicates severe congestion in a node on the virtual route.", HFILL }},
+ { "Virtual Route Reset Window Indicator", "sna.th.vr_rwi",
+ FT_BOOLEAN, 16, TFS(&sna_th_vr_rwi_truth), 0x1000,
+ "", HFILL }},
{ &hf_sna_th_vr_snf_send,
- { "Virtual Route Send Sequence Number Field", "sna.th.vr_snf_send", FT_UINT16, BASE_DEC,
- NULL, 0x0fff,
- "", HFILL }},
+ { "Virtual Route Send Sequence Number Field",
+ "sna.th.vr_snf_send", FT_UINT16, BASE_DEC, NULL, 0x0fff,
+ "Send Sequence Number Field", HFILL }},
{ &hf_sna_th_dsaf,
- { "Destination Subarea Address Field", "sna.th.dsaf", FT_UINT32, BASE_HEX, NULL, 0x0,
- "", HFILL }},
+ { "Destination Subarea Address Field", "sna.th.dsaf",
+ FT_UINT32, BASE_HEX, NULL, 0x0, "", HFILL }},
{ &hf_sna_th_osaf,
- { "Origin Subarea Address Field", "sna.th.osaf", FT_UINT32, BASE_HEX, NULL, 0x0,
- "", HFILL }},
+ { "Origin Subarea Address Field", "sna.th.osaf", FT_UINT32,
+ BASE_HEX, NULL, 0x0, "", HFILL }},
{ &hf_sna_th_snai,
- { "SNA Indicator", "sna.th.snai", FT_BOOLEAN, 8, NULL, 0x10,
- "Used to identify whether the PIU originated or is destined for "
- "an SNA or non-SNA device.", HFILL }},
+ { "SNA Indicator", "sna.th.snai", FT_BOOLEAN, 8, NULL, 0x10,
+ "Used to identify whether the PIU originated or is destined"
+ " for an SNA or non-SNA device.", HFILL }},
{ &hf_sna_th_def,
- { "Destination Element Field", "sna.th.def", FT_UINT16, BASE_HEX, NULL, 0x0,
- "", HFILL }},
+ { "Destination Element Field", "sna.th.def", FT_UINT16,
+ BASE_HEX, NULL, 0x0, "", HFILL }},
{ &hf_sna_th_oef,
- { "Origin Element Field", "sna.th.oef", FT_UINT16, BASE_HEX, NULL, 0x0,
- "", HFILL }},
+ { "Origin Element Field", "sna.th.oef", FT_UINT16, BASE_HEX,
+ NULL, 0x0, "", HFILL }},
{ &hf_sna_th_sa,
- { "Session Address", "sna.th.sa", FT_BYTES, BASE_HEX, NULL, 0x0,
- "", HFILL }},
+ { "Session Address", "sna.th.sa", FT_BYTES, BASE_HEX,
+ NULL, 0x0, "", HFILL }},
{ &hf_sna_th_cmd_fmt,
- { "Command Format", "sna.th.cmd_fmt", FT_UINT8, BASE_HEX, NULL, 0x0,
- "", HFILL }},
+ { "Command Format", "sna.th.cmd_fmt", FT_UINT8, BASE_HEX,
+ NULL, 0x0, "", HFILL }},
{ &hf_sna_th_cmd_type,
- { "Command Type", "sna.th.cmd_type", FT_UINT8, BASE_HEX, NULL, 0x0,
- "", HFILL }},
+ { "Command Type", "sna.th.cmd_type", FT_UINT8, BASE_HEX,
+ NULL, 0x0, "", HFILL }},
{ &hf_sna_th_cmd_sn,
- { "Command Sequence Number", "sna.th.cmd_sn", FT_UINT16, BASE_DEC, NULL, 0x0,
- "", HFILL }},
+ { "Command Sequence Number", "sna.th.cmd_sn", FT_UINT16,
+ BASE_DEC, NULL, 0x0, "", HFILL }},
+ { &hf_sna_nlp_nhdr,
+ { "Network Layer Packet Header", "sna.nlp.nhdr", FT_NONE,
+ BASE_NONE, NULL, 0x0, "NHDR", HFILL }},
+
+ { &hf_sna_nlp_nhdr_0,
+ { "Network Layer Packet Header Byte 0", "sna.nlp.nhdr.0",
+ FT_UINT8, BASE_HEX, NULL, 0x0, "", HFILL }},
+
+ { &hf_sna_nlp_nhdr_1,
+ { "Network Layer Packet Header Byte 1", "sna.nlp.nhdr.1",
+ FT_UINT8, BASE_HEX, NULL, 0x0, "", HFILL }},
+
+ { &hf_sna_nlp_sm,
+ { "Switching Mode Field", "sna.nlp.nhdr.sm", FT_UINT8,
+ BASE_HEX, VALS(sna_nlp_sm_vals), 0xe0, "", HFILL }},
+
+ { &hf_sna_nlp_tpf,
+ { "Transmission Priority Field", "sna.nlp.nhdr.tpf", FT_UINT8,
+ BASE_HEX, VALS(sna_th_tpf_vals), 0x06, "", HFILL }},
+
+ { &hf_sna_nlp_ft,
+ { "Function Type", "sna.nlp.nhdr.ft", FT_UINT8, BASE_HEX,
+ VALS(sna_nlp_ft_vals), 0xF0, "", HFILL }},
+
+ { &hf_sna_nlp_tspi,
+ { "Time Sensitive Packet Indicator", "sna.nlp.nhdr.tspi",
+ FT_BOOLEAN, 8, TFS(&sna_nlp_tspi_truth), 0x08, "", HFILL }},
+
+ { &hf_sna_nlp_slowdn1,
+ { "Slowdown 1", "sna.nlp.nhdr.slowdn1", FT_BOOLEAN, 8,
+ TFS(&sna_nlp_slowdn1_truth), 0x04, "", HFILL }},
+
+ { &hf_sna_nlp_slowdn2,
+ { "Slowdown 2", "sna.nlp.nhdr.slowdn2", FT_BOOLEAN, 8,
+ TFS(&sna_nlp_slowdn2_truth), 0x02, "", HFILL }},
+
+ { &hf_sna_nlp_fra,
+ { "Function Routing Address Entry", "sna.nlp.nhdr.fra",
+ FT_BYTES, BASE_NONE, NULL, 0, "", HFILL }},
+
+ { &hf_sna_nlp_anr,
+ { "Automatic Network Routing Entry", "sna.nlp.nhdr.anr",
+ FT_BYTES, BASE_HEX, NULL, 0, "", HFILL }},
+
+ { &hf_sna_nlp_frh,
+ { "Transmission Priority Field", "sna.nlp.frh", FT_UINT8,
+ BASE_HEX, VALS(sna_nlp_frh_vals), 0, "", HFILL }},
+
+ { &hf_sna_nlp_thdr,
+ { "RTP Transport Header", "sna.nlp.thdr", FT_NONE, BASE_NONE,
+ NULL, 0x0, "THDR", HFILL }},
+
+ { &hf_sna_nlp_tcid,
+ { "Transport Connection Identifier", "sna.nlp.thdr.tcid",
+ FT_BYTES, BASE_HEX, NULL, 0x0, "TCID", HFILL }},
+
+ { &hf_sna_nlp_thdr_8,
+ { "RTP Transport Packet Header Byte 8", "sna.nlp.thdr.8",
+ FT_UINT8, BASE_HEX, NULL, 0x0, "", HFILL }},
+
+ { &hf_sna_nlp_setupi,
+ { "Setup Indicator", "sna.nlp.thdr.setupi", FT_BOOLEAN, 8,
+ TFS(&sna_nlp_setupi_truth), 0x40, "", HFILL }},
+
+ { &hf_sna_nlp_somi,
+ { "Start Of Message Indicator", "sna.nlp.thdr.somi",
+ FT_BOOLEAN, 8, TFS(&sna_nlp_somi_truth), 0x20, "", HFILL }},
+
+ { &hf_sna_nlp_eomi,
+ { "End Of Message Indicator", "sna.nlp.thdr.eomi", FT_BOOLEAN,
+ 8, TFS(&sna_nlp_eomi_truth), 0x10, "", HFILL }},
+
+ { &hf_sna_nlp_sri,
+ { "Session Request Indicator", "sna.nlp.thdr.sri", FT_BOOLEAN,
+ 8, TFS(&sna_nlp_sri_truth), 0x08, "", HFILL }},
+
+ { &hf_sna_nlp_rasapi,
+ { "Reply ASAP Indicator", "sna.nlp.thdr.rasapi", FT_BOOLEAN,
+ 8, TFS(&sna_nlp_rasapi_truth), 0x04, "", HFILL }},
+
+ { &hf_sna_nlp_retryi,
+ { "Retry Indicator", "sna.nlp.thdr.retryi", FT_BOOLEAN,
+ 8, TFS(&sna_nlp_retryi_truth), 0x02, "", HFILL }},
+
+ { &hf_sna_nlp_thdr_9,
+ { "RTP Transport Packet Header Byte 9", "sna.nlp.thdr.9",
+ FT_UINT8, BASE_HEX, NULL, 0x0, "", HFILL }},
+
+ { &hf_sna_nlp_lmi,
+ { "Last Message Indicator", "sna.nlp.thdr.lmi", FT_BOOLEAN,
+ 8, TFS(&sna_nlp_lmi_truth), 0x80, "", HFILL }},
+
+ { &hf_sna_nlp_cqfi,
+ { "Connection Qualifyer Field Indicator", "sna.nlp.thdr.cqfi",
+ FT_BOOLEAN, 8, TFS(&sna_nlp_cqfi_truth), 0x08, "", HFILL }},
+
+ { &hf_sna_nlp_osi,
+ { "Optional Segments Present Indicator", "sna.nlp.thdr.osi",
+ FT_BOOLEAN, 8, TFS(&sna_nlp_osi_truth), 0x04, "", HFILL }},
+
+ { &hf_sna_nlp_offset,
+ { "Data Offset/4", "sna.nlp.thdr.offset", FT_UINT16, BASE_HEX,
+ NULL, 0x0, "Data Offset in Words", HFILL }},
+
+ { &hf_sna_nlp_dlf,
+ { "Data Length Field", "sna.nlp.thdr.dlf", FT_UINT32, BASE_HEX,
+ NULL, 0x0, "", HFILL }},
+
+ { &hf_sna_nlp_bsn,
+ { "Byte Sequence Number", "sna.nlp.thdr.bsn", FT_UINT32,
+ BASE_HEX, NULL, 0x0, "", HFILL }},
+
+ { &hf_sna_nlp_opti_len,
+ { "Optional Segment Length/4", "sna.nlp.thdr.optional.len",
+ FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL }},
+
+ { &hf_sna_nlp_opti_type,
+ { "Optional Segment Type", "sna.nlp.thdr.optional.type",
+ FT_UINT8, BASE_HEX, VALS(sna_nlp_opti_vals), 0x0, "",
+ HFILL }},
+
+ { &hf_sna_nlp_opti_0d_version,
+ { "Version", "sna.nlp.thdr.optional.0d.version",
+ FT_UINT16, BASE_HEX, VALS(sna_nlp_opti_0d_version_vals),
+ 0, "", HFILL }},
+
+ { &hf_sna_nlp_opti_0d_4,
+ { "Connection Setup Byte 4", "sna.nlp.thdr.optional.0e.4",
+ FT_UINT8, BASE_HEX, NULL, 0, "", HFILL }},
+
+ { &hf_sna_nlp_opti_0d_target,
+ { "Target Resource ID Present",
+ "sna.nlp.thdr.optional.0d.target",
+ FT_BOOLEAN, 8, NULL, 0x80, "", HFILL }},
+
+ { &hf_sna_nlp_opti_0d_arb,
+ { "ARB Flow Control", "sna.nlp.thdr.optional.0d.arb",
+ FT_BOOLEAN, 8, NULL, 0x10, "", HFILL }},
+
+ { &hf_sna_nlp_opti_0d_reliable,
+ { "Reliable Connection", "sna.nlp.thdr.optional.0d.reliable",
+ FT_BOOLEAN, 8, NULL, 0x08, "", HFILL }},
+
+ { &hf_sna_nlp_opti_0d_dedicated,
+ { "Dedicated RTP Connection",
+ "sna.nlp.thdr.optional.0d.dedicated",
+ FT_BOOLEAN, 8, NULL, 0x04, "", HFILL }},
+
+ { &hf_sna_nlp_opti_0e_stat,
+ { "Status", "sna.nlp.thdr.optional.0e.stat",
+ FT_UINT8, BASE_HEX, NULL, 0, "", HFILL }},
+
+ { &hf_sna_nlp_opti_0e_gap,
+ { "Gap Detected", "sna.nlp.thdr.optional.0e.gap",
+ FT_BOOLEAN, 8, NULL, 0x80, "", HFILL }},
+
+ { &hf_sna_nlp_opti_0e_idle,
+ { "RTP Idle Packet", "sna.nlp.thdr.optional.0e.idle",
+ FT_BOOLEAN, 8, NULL, 0x40, "", HFILL }},
+
+ { &hf_sna_nlp_opti_0e_nabsp,
+ { "Number Of ABSP", "sna.nlp.thdr.optional.0e.nabsp",
+ FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL }},
+
+ { &hf_sna_nlp_opti_0e_sync,
+ { "Status Report Number", "sna.nlp.thdr.optional.0e.sync",
+ FT_UINT16, BASE_HEX, NULL, 0x0, "", HFILL }},
+
+ { &hf_sna_nlp_opti_0e_echo,
+ { "Status Acknowledge Number", "sna.nlp.thdr.optional.0e.echo",
+ FT_UINT16, BASE_HEX, NULL, 0x0, "", HFILL }},
+
+ { &hf_sna_nlp_opti_0e_rseq,
+ { "Received Sequence Number", "sna.nlp.thdr.optional.0e.rseq",
+ FT_UINT32, BASE_HEX, NULL, 0x0, "", HFILL }},
+
+ { &hf_sna_nlp_opti_0e_abspbeg,
+ { "ABSP Begin", "sna.nlp.thdr.optional.0e.abspbeg",
+ FT_UINT32, BASE_HEX, NULL, 0x0, "", HFILL }},
+
+ { &hf_sna_nlp_opti_0e_abspend,
+ { "ABSP End", "sna.nlp.thdr.optional.0e.abspend",
+ FT_UINT32, BASE_HEX, NULL, 0x0, "", HFILL }},
+
+ { &hf_sna_nlp_opti_0f_bits,
+ { "Client Bits", "sna.nlp.thdr.optional.0f.bits",
+ FT_UINT8, BASE_HEX, VALS(sna_nlp_opti_0f_bits_vals),
+ 0x0, "", HFILL }},
+
+ { &hf_sna_nlp_opti_10_tcid,
+ { "Transport Connection Identifier",
+ "sna.nlp.thdr.optional.10.tcid",
+ FT_BYTES, BASE_HEX, NULL, 0x0, "TCID", HFILL }},
+
+ { &hf_sna_nlp_opti_12_sense,
+ { "Sense Data", "sna.nlp.thdr.optional.12.sense",
+ FT_BYTES, BASE_HEX, NULL, 0x0, "", HFILL }},
+
+ { &hf_sna_nlp_opti_14_si_len,
+ { "Length", "sna.nlp.thdr.optional.14.si.len",
+ FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL }},
+
+ { &hf_sna_nlp_opti_14_si_key,
+ { "Key", "sna.nlp.thdr.optional.14.si.key",
+ FT_UINT8, BASE_HEX, NULL, 0x0, "", HFILL }},
+
+ { &hf_sna_nlp_opti_14_si_2,
+ { "Switching Information Byte 2",
+ "sna.nlp.thdr.optional.14.si.2",
+ FT_UINT8, BASE_HEX, NULL, 0x0, "", HFILL }},
+
+ { &hf_sna_nlp_opti_14_si_refifo,
+ { "Resequencing (REFIFO) Indicator",
+ "sna.nlp.thdr.optional.14.si.refifo",
+ FT_BOOLEAN, 8, NULL, 0x80, "", HFILL }},
+
+ { &hf_sna_nlp_opti_14_si_mobility,
+ { "Mobility Indicator",
+ "sna.nlp.thdr.optional.14.si.mobility",
+ FT_BOOLEAN, 8, NULL, 0x40, "", HFILL }},
+
+ { &hf_sna_nlp_opti_14_si_dirsearch,
+ { "Directory Search Required on Path Switch Indicator",
+ "sna.nlp.thdr.optional.14.si.dirsearch",
+ FT_BOOLEAN, 8, NULL, 0x20, "", HFILL }},
+
+ { &hf_sna_nlp_opti_14_si_limitres,
+ { "Limited Resource Link Indicator",
+ "sna.nlp.thdr.optional.14.si.limitres",
+ FT_BOOLEAN, 8, NULL, 0x10, "", HFILL }},
+
+ { &hf_sna_nlp_opti_14_si_ncescope,
+ { "NCE Scope Indicator",
+ "sna.nlp.thdr.optional.14.si.ncescope",
+ FT_BOOLEAN, 8, NULL, 0x08, "", HFILL }},
+
+ { &hf_sna_nlp_opti_14_si_mnpsrscv,
+ { "MNPS RSCV Retention Indicator",
+ "sna.nlp.thdr.optional.14.si.mnpsrscv",
+ FT_BOOLEAN, 8, NULL, 0x04, "", HFILL }},
+
+ { &hf_sna_nlp_opti_14_si_maxpsize,
+ { "Maximum Packet Size On Return Path",
+ "sna.nlp.thdr.optional.14.si.maxpsize",
+ FT_UINT32, BASE_DEC, NULL, 0x0, "", HFILL }},
+
+ { &hf_sna_nlp_opti_14_si_switch,
+ { "Path Switch Time", "sna.nlp.thdr.optional.14.si.switch",
+ FT_UINT32, BASE_DEC, NULL, 0x0, "", HFILL }},
+
+ { &hf_sna_nlp_opti_14_si_alive,
+ { "RTP Alive Timer", "sna.nlp.thdr.optional.14.si.alive",
+ FT_UINT32, BASE_DEC, NULL, 0x0, "", HFILL }},
+
+ { &hf_sna_nlp_opti_14_rr_len,
+ { "Length", "sna.nlp.thdr.optional.14.rr.len",
+ FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL }},
+
+ { &hf_sna_nlp_opti_14_rr_key,
+ { "Key", "sna.nlp.thdr.optional.14.rr.key",
+ FT_UINT8, BASE_HEX, NULL, 0x0, "", HFILL }},
+
+ { &hf_sna_nlp_opti_14_rr_2,
+ { "Return Route TG Descriptor Byte 2",
+ "sna.nlp.thdr.optional.14.rr.2",
+ FT_UINT8, BASE_HEX, NULL, 0x0, "", HFILL }},
+
+ { &hf_sna_nlp_opti_14_rr_bfe,
+ { "BF Entry Indicator",
+ "sna.nlp.thdr.optional.14.rr.bfe",
+ FT_BOOLEAN, 8, NULL, 0x80, "", HFILL }},
+
+ { &hf_sna_nlp_opti_14_rr_num,
+ { "Number Of TG Control Vectors",
+ "sna.nlp.thdr.optional.14.rr.num",
+ FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL }},
+
+ { &hf_sna_nlp_opti_22_2,
+ { "Adaptive Rate Based Segment Byte 2",
+ "sna.nlp.thdr.optional.22.2",
+ FT_UINT8, BASE_HEX, NULL, 0x0, "", HFILL }},
+
+ { &hf_sna_nlp_opti_22_type,
+ { "Message Type",
+ "sna.nlp.thdr.optional.22.type",
+ FT_UINT8, BASE_HEX,
+ VALS(sna_nlp_opti_22_type_vals), 0xc0, "", HFILL }},
+
+ { &hf_sna_nlp_opti_22_raa,
+ { "Rate Adjustment Action",
+ "sna.nlp.thdr.optional.22.raa",
+ FT_UINT8, BASE_HEX,
+ VALS(sna_nlp_opti_22_raa_vals), 0x38, "", HFILL }},
+
+ { &hf_sna_nlp_opti_22_parity,
+ { "Parity Indicator",
+ "sna.nlp.thdr.optional.22.parity",
+ FT_BOOLEAN, 8, NULL, 0x04, "", HFILL }},
+
+ { &hf_sna_nlp_opti_22_arb,
+ { "ARB Mode",
+ "sna.nlp.thdr.optional.22.arb",
+ FT_UINT8, BASE_HEX,
+ VALS(sna_nlp_opti_22_arb_vals), 0x03, "", HFILL }},
+
+ { &hf_sna_nlp_opti_22_3,
+ { "Adaptive Rate Based Segment Byte 3",
+ "sna.nlp.thdr.optional.22.3",
+ FT_UINT8, BASE_HEX, NULL, 0x0, "", HFILL }},
+
+ { &hf_sna_nlp_opti_22_ratereq,
+ { "Rate Request Correlator",
+ "sna.nlp.thdr.optional.22.ratereq",
+ FT_UINT8, BASE_DEC, NULL, 0xf0, "", HFILL }},
+
+ { &hf_sna_nlp_opti_22_raterep,
+ { "Rate Reply Correlator",
+ "sna.nlp.thdr.optional.22.raterep",
+ FT_UINT8, BASE_DEC, NULL, 0x0f, "", HFILL }},
+
+ { &hf_sna_nlp_opti_22_field1,
+ { "Field 1", "sna.nlp.thdr.optional.22.field1",
+ FT_UINT32, BASE_DEC, NULL, 0x0, "", HFILL }},
+
+ { &hf_sna_nlp_opti_22_field2,
+ { "Field 2", "sna.nlp.thdr.optional.22.field2",
+ FT_UINT32, BASE_DEC, NULL, 0x0, "", HFILL }},
+
+ { &hf_sna_nlp_opti_22_field3,
+ { "Field 3", "sna.nlp.thdr.optional.22.field3",
+ FT_UINT32, BASE_DEC, NULL, 0x0, "", HFILL }},
+
+ { &hf_sna_nlp_opti_22_field4,
+ { "Field 4", "sna.nlp.thdr.optional.22.field4",
+ FT_UINT32, BASE_DEC, NULL, 0x0, "", HFILL }},
{ &hf_sna_rh,
- { "Request/Response Header", "sna.rh", FT_NONE, BASE_NONE, NULL, 0x0,
- "", HFILL }},
+ { "Request/Response Header", "sna.rh", FT_NONE, BASE_NONE,
+ NULL, 0x0, "", HFILL }},
{ &hf_sna_rh_0,
- { "Request/Response Header Byte 0", "sna.rh.0", FT_UINT8, BASE_HEX, NULL, 0x0,
- "", HFILL }},
+ { "Request/Response Header Byte 0", "sna.rh.0", FT_UINT8,
+ BASE_HEX, NULL, 0x0, "", HFILL }},
{ &hf_sna_rh_1,
- { "Request/Response Header Byte 1", "sna.rh.1", FT_UINT8, BASE_HEX, NULL, 0x0,
- "", HFILL }},
+ { "Request/Response Header Byte 1", "sna.rh.1", FT_UINT8,
+ BASE_HEX, NULL, 0x0, "", HFILL }},
{ &hf_sna_rh_2,
- { "Request/Response Header Byte 2", "sna.rh.2", FT_UINT8, BASE_HEX, NULL, 0x0,
- "", HFILL }},
+ { "Request/Response Header Byte 2", "sna.rh.2", FT_UINT8,
+ BASE_HEX, NULL, 0x0, "", HFILL }},
{ &hf_sna_rh_rri,
- { "Request/Response Indicator", "sna.rh.rri", FT_UINT8, BASE_DEC, VALS(sna_rh_rri_vals), 0x80,
- "Denotes whether this is a request or a response.", HFILL }},
+ { "Request/Response Indicator", "sna.rh.rri", FT_UINT8,
+ BASE_DEC, VALS(sna_rh_rri_vals), 0x80, "", HFILL }},
{ &hf_sna_rh_ru_category,
- { "Request/Response Unit Category", "sna.rh.ru_category", FT_UINT8, BASE_HEX,
- VALS(sna_rh_ru_category_vals), 0x60,
- "", HFILL }},
+ { "Request/Response Unit Category", "sna.rh.ru_category",
+ FT_UINT8, BASE_HEX, VALS(sna_rh_ru_category_vals), 0x60,
+ "", HFILL }},
{ &hf_sna_rh_fi,
- { "Format Indicator", "sna.rh.fi", FT_BOOLEAN, 8, TFS(&sna_rh_fi_truth), 0x08,
- "", HFILL }},
+ { "Format Indicator", "sna.rh.fi", FT_BOOLEAN, 8,
+ TFS(&sna_rh_fi_truth), 0x08, "", HFILL }},
{ &hf_sna_rh_sdi,
- { "Sense Data Included", "sna.rh.sdi", FT_BOOLEAN, 8, TFS(&sna_rh_sdi_truth), 0x04,
- "Indicates that a 4-byte sense data field is included in the associated RU.", HFILL }},
+ { "Sense Data Included", "sna.rh.sdi", FT_BOOLEAN, 8,
+ TFS(&sna_rh_sdi_truth), 0x04, "", HFILL }},
{ &hf_sna_rh_bci,
- { "Begin Chain Indicator", "sna.rh.bci", FT_BOOLEAN, 8, TFS(&sna_rh_bci_truth), 0x02,
- "", HFILL }},
+ { "Begin Chain Indicator", "sna.rh.bci", FT_BOOLEAN, 8,
+ TFS(&sna_rh_bci_truth), 0x02, "", HFILL }},
{ &hf_sna_rh_eci,
- { "End Chain Indicator", "sna.rh.eci", FT_BOOLEAN, 8, TFS(&sna_rh_eci_truth), 0x01,
- "", HFILL }},
+ { "End Chain Indicator", "sna.rh.eci", FT_BOOLEAN, 8,
+ TFS(&sna_rh_eci_truth), 0x01, "", HFILL }},
{ &hf_sna_rh_dr1,
- { "Definite Response 1 Indicator", "sna.rh.dr1", FT_BOOLEAN, 8, NULL, 0x80,
- "", HFILL }},
+ { "Definite Response 1 Indicator", "sna.rh.dr1", FT_BOOLEAN,
+ 8, NULL, 0x80, "", HFILL }},
{ &hf_sna_rh_lcci,
- { "Length-Checked Compression Indicator", "sna.rh.lcci", FT_BOOLEAN, 8,
- TFS(&sna_rh_lcci_truth), 0x40,
- "", HFILL }},
+ { "Length-Checked Compression Indicator", "sna.rh.lcci",
+ FT_BOOLEAN, 8, TFS(&sna_rh_lcci_truth), 0x40, "", HFILL }},
{ &hf_sna_rh_dr2,
- { "Definite Response 2 Indicator", "sna.rh.dr2", FT_BOOLEAN, 8, NULL, 0x20,
- "", HFILL }},
+ { "Definite Response 2 Indicator", "sna.rh.dr2", FT_BOOLEAN,
+ 8, NULL, 0x20, "", HFILL }},
{ &hf_sna_rh_eri,
- { "Exception Response Indicator", "sna.rh.eri", FT_BOOLEAN, 8, NULL, 0x10,
- "Used in conjunction with DR1I and DR2I to indicate, in a request, "
- "the form of response requested.", HFILL }},
+ { "Exception Response Indicator", "sna.rh.eri", FT_BOOLEAN,
+ 8, NULL, 0x10, "", HFILL }},
{ &hf_sna_rh_rti,
- { "Response Type Indicator", "sna.rh.rti", FT_BOOLEAN, 8, TFS(&sna_rh_rti_truth), 0x10,
- "", HFILL }},
+ { "Response Type Indicator", "sna.rh.rti", FT_BOOLEAN,
+ 8, TFS(&sna_rh_rti_truth), 0x10, "", HFILL }},
{ &hf_sna_rh_rlwi,
- { "Request Larger Window Indicator", "sna.rh.rlwi", FT_BOOLEAN, 8, NULL, 0x04,
- "Indicates whether a larger pacing window was requested.", HFILL }},
+ { "Request Larger Window Indicator", "sna.rh.rlwi", FT_BOOLEAN,
+ 8, NULL, 0x04, "", HFILL }},
{ &hf_sna_rh_qri,
- { "Queued Response Indicator", "sna.rh.qri", FT_BOOLEAN, 8, TFS(&sna_rh_qri_truth), 0x02,
- "", HFILL }},
+ { "Queued Response Indicator", "sna.rh.qri", FT_BOOLEAN,
+ 8, TFS(&sna_rh_qri_truth), 0x02, "", HFILL }},
{ &hf_sna_rh_pi,
- { "Pacing Indicator", "sna.rh.pi", FT_BOOLEAN, 8, NULL, 0x01,
- "", HFILL }},
+ { "Pacing Indicator", "sna.rh.pi", FT_BOOLEAN,
+ 8, NULL, 0x01, "", HFILL }},
{ &hf_sna_rh_bbi,
- { "Begin Bracket Indicator", "sna.rh.bbi", FT_BOOLEAN, 8, NULL, 0x80,
- "", HFILL }},
+ { "Begin Bracket Indicator", "sna.rh.bbi", FT_BOOLEAN,
+ 8, NULL, 0x80, "", HFILL }},
{ &hf_sna_rh_ebi,
- { "End Bracket Indicator", "sna.rh.ebi", FT_BOOLEAN, 8, NULL, 0x40,
- "", HFILL }},
+ { "End Bracket Indicator", "sna.rh.ebi", FT_BOOLEAN,
+ 8, NULL, 0x40, "", HFILL }},
{ &hf_sna_rh_cdi,
- { "Change Direction Indicator", "sna.rh.cdi", FT_BOOLEAN, 8, NULL, 0x20,
- "", HFILL }},
+ { "Change Direction Indicator", "sna.rh.cdi", FT_BOOLEAN,
+ 8, NULL, 0x20, "", HFILL }},
{ &hf_sna_rh_csi,
- { "Code Selection Indicator", "sna.rh.csi", FT_UINT8, BASE_DEC, VALS(sna_rh_csi_vals), 0x08,
- "Specifies the encoding used for the associated FMD RU.", HFILL }},
+ { "Code Selection Indicator", "sna.rh.csi", FT_UINT8, BASE_DEC,
+ VALS(sna_rh_csi_vals), 0x08, "", HFILL }},
{ &hf_sna_rh_edi,
- { "Enciphered Data Indicator", "sna.rh.edi", FT_BOOLEAN, 8, NULL, 0x04,
- "Indicates that information in the associated RU is enciphered under "
- "session-level cryptography protocols.", HFILL }},
+ { "Enciphered Data Indicator", "sna.rh.edi", FT_BOOLEAN, 8,
+ NULL, 0x04, "", HFILL }},
{ &hf_sna_rh_pdi,
- { "Padded Data Indicator", "sna.rh.pdi", FT_BOOLEAN, 8, NULL, 0x02,
- "Indicates that the RU was padded at the end, before encipherment, to the next "
- "integral multiple of 8 bytes.", HFILL }},
+ { "Padded Data Indicator", "sna.rh.pdi", FT_BOOLEAN, 8, NULL,
+ 0x02, "", HFILL }},
{ &hf_sna_rh_cebi,
- { "Conditional End Bracket Indicator", "sna.rh.cebi", FT_BOOLEAN, 8, NULL, 0x01,
- "Used to indicate the beginning or end of a group of exchanged "
- "requests and responses called a bracket. Only used on LU-LU sessions.", HFILL }},
+ { "Conditional End Bracket Indicator", "sna.rh.cebi",
+ FT_BOOLEAN, 8, NULL, 0x01, "", HFILL }},
+
+/* { &hf_sna_ru,
+ { "Request/Response Unit", "sna.ru", FT_NONE, BASE_NONE,
+ NULL, 0x0, "", HFILL }},*/
+
+ { &hf_sna_gds,
+ { "GDS Variable", "sna.gds", FT_NONE, BASE_NONE, NULL, 0x0,
+ "", HFILL }},
+
+ { &hf_sna_gds_len,
+ { "GDS Variable Length", "sna.gds.len", FT_UINT16, BASE_DEC,
+ NULL, 0x7fff, "", HFILL }},
-/* { &hf_sna_ru,
- { "Request/Response Unit", "sna.ru", FT_NONE, BASE_NONE, NULL, 0x0,
- "", HFILL }},*/
+ { &hf_sna_gds_cont,
+ { "Continuation Flag", "sna.gds.cont", FT_BOOLEAN, 16, NULL,
+ 0x8000, "", HFILL }},
+
+ { &hf_sna_gds_type,
+ { "Type of Variable", "sna.gds.type", FT_UINT16, BASE_HEX,
+ VALS(sna_gds_var_vals), 0x0, "", HFILL }},
+
+ { &hf_sna_xid,
+ { "XID", "sna.xid", FT_NONE, BASE_NONE, NULL, 0x0,
+ "XID Frame", HFILL }},
+
+ { &hf_sna_xid_0,
+ { "XID Byte 0", "sna.xid.0", FT_UINT8, BASE_HEX, NULL, 0x0,
+ "", HFILL }},
+
+ { &hf_sna_xid_format,
+ { "XID Format", "sna.xid.format", FT_UINT8, BASE_DEC, NULL,
+ 0xf0, "", HFILL }},
+
+ { &hf_sna_xid_type,
+ { "XID Type", "sna.xid.type", FT_UINT8, BASE_DEC,
+ VALS(sna_xid_type_vals), 0x0f, "", HFILL }},
+
+ { &hf_sna_xid_len,
+ { "XID Length", "sna.xid.len", FT_UINT8, BASE_DEC, NULL, 0x0,
+ "", HFILL }},
+
+ { &hf_sna_xid_id,
+ { "Node Identification", "sna.xid.id", FT_UINT32, BASE_HEX,
+ NULL, 0x0, "", HFILL }},
+
+ { &hf_sna_xid_idblock,
+ { "ID Block", "sna.xid.idblock", FT_UINT32, BASE_HEX, NULL,
+ 0xfff00000, "", HFILL }},
+
+ { &hf_sna_xid_idnum,
+ { "ID Number", "sna.xid.idnum", FT_UINT32, BASE_HEX, NULL,
+ 0x0fffff, "", HFILL }},
+
+ { &hf_sna_xid_3_8,
+ { "Characteristics of XID sender", "sna.xid.type3.8", FT_UINT16,
+ BASE_HEX, NULL, 0x0, "", HFILL }},
+
+ { &hf_sna_xid_3_init_self,
+ { "INIT-SELF support", "sna.xid.type3.initself",
+ FT_BOOLEAN, 16, NULL, 0x8000, "", HFILL }},
+
+ { &hf_sna_xid_3_stand_bind,
+ { "Stand-Alone BIND Support", "sna.xid.type3.stand_bind",
+ FT_BOOLEAN, 16, NULL, 0x4000, "", HFILL }},
+
+ { &hf_sna_xid_3_gener_bind,
+ { "Whole BIND PIU generated indicator",
+ "sna.xid.type3.gener_bind", FT_BOOLEAN, 16, NULL, 0x2000,
+ "Whole BIND PIU generated", HFILL }},
+
+ { &hf_sna_xid_3_recve_bind,
+ { "Whole BIND PIU required indicator",
+ "sna.xid.type3.recve_bind", FT_BOOLEAN, 16, NULL, 0x1000,
+ "Whole BIND PIU required", HFILL }},
+
+ { &hf_sna_xid_3_actpu,
+ { "ACTPU suppression indicator", "sna.xid.type3.actpu",
+ FT_BOOLEAN, 16, NULL, 0x0080, "", HFILL }},
+
+ { &hf_sna_xid_3_nwnode,
+ { "Sender is network node", "sna.xid.type3.nwnode",
+ FT_BOOLEAN, 16, NULL, 0x0040, "", HFILL }},
+
+ { &hf_sna_xid_3_cp,
+ { "Control Point Services", "sna.xid.type3.cp",
+ FT_BOOLEAN, 16, NULL, 0x0020, "", HFILL }},
+
+ { &hf_sna_xid_3_cpcp,
+ { "CP-CP session support", "sna.xid.type3.cpcp",
+ FT_BOOLEAN, 16, NULL, 0x0010, "", HFILL }},
+
+ { &hf_sna_xid_3_state,
+ { "XID exchange state indicator", "sna.xid.type3.state",
+ FT_UINT16, BASE_HEX, VALS(sna_xid_3_state_vals),
+ 0x000c, "", HFILL }},
+
+ { &hf_sna_xid_3_nonact,
+ { "Nonactivation Exchange", "sna.xid.type3.nonact",
+ FT_BOOLEAN, 16, NULL, 0x0002, "", HFILL }},
+
+ { &hf_sna_xid_3_cpchange,
+ { "CP name change support", "sna.xid.type3.cpchange",
+ FT_BOOLEAN, 16, NULL, 0x0001, "", HFILL }},
+
+ { &hf_sna_xid_3_10,
+ { "XID Type 3 Byte 10", "sna.xid.type3.10", FT_UINT8, BASE_HEX,
+ NULL, 0x0, "", HFILL }},
+
+ { &hf_sna_xid_3_asend_bind,
+ { "Adaptive BIND pacing support as sender",
+ "sna.xid.type3.asend_bind", FT_BOOLEAN, 8, NULL, 0x80,
+ "Pacing support as sender", HFILL }},
+
+ { &hf_sna_xid_3_arecv_bind,
+ { "Adaptive BIND pacing support as receiver",
+ "sna.xid.type3.asend_recv", FT_BOOLEAN, 8, NULL, 0x40,
+ "Pacing support as receive", HFILL }},
+
+ { &hf_sna_xid_3_quiesce,
+ { "Quiesce TG Request",
+ "sna.xid.type3.quiesce", FT_BOOLEAN, 8, NULL, 0x20,
+ "", HFILL }},
+
+ { &hf_sna_xid_3_pucap,
+ { "PU Capabilities",
+ "sna.xid.type3.pucap", FT_BOOLEAN, 8, NULL, 0x10,
+ "", HFILL }},
+
+ { &hf_sna_xid_3_pbn,
+ { "Peripheral Border Node",
+ "sna.xid.type3.pbn", FT_BOOLEAN, 8, NULL, 0x08,
+ "", HFILL }},
+
+ { &hf_sna_xid_3_pacing,
+ { "Qualifier for adaptive BIND pacing support",
+ "sna.xid.type3.pacing", FT_UINT8, BASE_HEX, NULL, 0x03,
+ "", HFILL }},
+
+ { &hf_sna_xid_3_11,
+ { "XID Type 3 Byte 11", "sna.xid.type3.11", FT_UINT8, BASE_HEX,
+ NULL, 0x0, "", HFILL }},
+
+ { &hf_sna_xid_3_tgshare,
+ { "TG Sharing Prohibited Indicator",
+ "sna.xid.type3.tgshare", FT_BOOLEAN, 8, NULL, 0x40,
+ "", HFILL }},
+
+ { &hf_sna_xid_3_dedsvc,
+ { "Dedicated SVC Idicator",
+ "sna.xid.type3.dedsvc", FT_BOOLEAN, 8, NULL, 0x20,
+ "", HFILL }},
+
+ { &hf_sna_xid_3_12,
+ { "XID Type 3 Byte 12", "sna.xid.type3.12", FT_UINT8, BASE_HEX,
+ NULL, 0x0, "", HFILL }},
+
+ { &hf_sna_xid_3_negcsup,
+ { "Negotiation Complete Supported",
+ "sna.xid.type3.negcsup", FT_BOOLEAN, 8, NULL, 0x80,
+ "", HFILL }},
+
+ { &hf_sna_xid_3_negcomp,
+ { "Negotiation Complete",
+ "sna.xid.type3.negcomp", FT_BOOLEAN, 8, NULL, 0x40,
+ "", HFILL }},
+
+ { &hf_sna_xid_3_15,
+ { "XID Type 3 Byte 15", "sna.xid.type3.15", FT_UINT8, BASE_HEX,
+ NULL, 0x0, "", HFILL }},
+
+ { &hf_sna_xid_3_partg,
+ { "Parallel TG Support",
+ "sna.xid.type3.partg", FT_BOOLEAN, 8, NULL, 0x80,
+ "", HFILL }},
+
+ { &hf_sna_xid_3_dlur,
+ { "Dependent LU Requester Indicator",
+ "sna.xid.type3.dlur", FT_BOOLEAN, 8, NULL, 0x40,
+ "", HFILL }},
+
+ { &hf_sna_xid_3_dlus,
+ { "DLUS Served LU Registration Indicator",
+ "sna.xid.type3.dlus", FT_BOOLEAN, 8, NULL, 0x20,
+ "", HFILL }},
+
+ { &hf_sna_xid_3_exbn,
+ { "Extended HPR Border Node",
+ "sna.xid.type3.exbn", FT_BOOLEAN, 8, NULL, 0x10,
+ "", HFILL }},
+
+ { &hf_sna_xid_3_genodai,
+ { "Generalized ODAI Usage Option",
+ "sna.xid.type3.genodai", FT_BOOLEAN, 8, NULL, 0x08,
+ "", HFILL }},
+
+ { &hf_sna_xid_3_branch,
+ { "Branch Indicator", "sna.xid.type3.branch",
+ FT_UINT8, BASE_HEX, VALS(sna_xid_3_branch_vals),
+ 0x06, "", HFILL }},
+
+ { &hf_sna_xid_3_brnn,
+ { "Option Set 1123 Indicator",
+ "sna.xid.type3.brnn", FT_BOOLEAN, 8, NULL, 0x01,
+ "", HFILL }},
+
+ { &hf_sna_xid_3_tg,
+ { "XID TG", "sna.xid.type3.tg", FT_UINT8, BASE_HEX, NULL, 0x0,
+ "", HFILL }},
+
+ { &hf_sna_xid_3_dlc,
+ { "XID DLC", "sna.xid.type3.dlc", FT_UINT8, BASE_HEX, NULL, 0x0,
+ "", HFILL }},
+
+ { &hf_sna_xid_3_dlen,
+ { "DLC Dependent Section Length", "sna.xid.type3.dlen",
+ FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL }},
+
+ { &hf_sna_control_len,
+ { "Control Vector Length", "sna.control.len",
+ FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL }},
+
+ { &hf_sna_control_key,
+ { "Control Vector Key", "sna.control.key",
+ FT_UINT8, BASE_HEX, VALS(sna_control_vals), 0x0, "",
+ HFILL }},
+
+ { &hf_sna_control_hprkey,
+ { "Control Vector HPR Key", "sna.control.hprkey",
+ FT_UINT8, BASE_HEX, VALS(sna_control_hpr_vals), 0x0, "",
+ HFILL }},
+
+ { &hf_sna_control_05_delay,
+ { "Channel Delay", "sna.control.05.delay",
+ FT_UINT16, BASE_DEC, NULL, 0x0, "", HFILL }},
+
+ { &hf_sna_control_05_type,
+ { "Network Address Type", "sna.control.05.type",
+ FT_UINT8, BASE_HEX, NULL, 0x0, "", HFILL }},
+
+ { &hf_sna_control_05_ptp,
+ { "Point-to-point", "sna.control.05.ptp",
+ FT_BOOLEAN, 8, NULL, 0x80, "", HFILL }},
+
+ { &hf_sna_control_0e_type,
+ { "Type", "sna.control.0e.type",
+ FT_UINT8, BASE_HEX, VALS(sna_control_0e_type_vals),
+ 0, "", HFILL }},
+
+ { &hf_sna_control_0e_value,
+ { "Value", "sna.control.0e.value",
+ FT_STRING, BASE_NONE, NULL, 0, "", HFILL }},
};
static gint *ett[] = {
&ett_sna,
&ett_sna_th,
&ett_sna_th_fid,
+ &ett_sna_nlp_nhdr,
+ &ett_sna_nlp_nhdr_0,
+ &ett_sna_nlp_nhdr_1,
+ &ett_sna_nlp_thdr,
+ &ett_sna_nlp_thdr_8,
+ &ett_sna_nlp_thdr_9,
+ &ett_sna_nlp_opti_un,
+ &ett_sna_nlp_opti_0d,
+ &ett_sna_nlp_opti_0d_4,
+ &ett_sna_nlp_opti_0e,
+ &ett_sna_nlp_opti_0e_stat,
+ &ett_sna_nlp_opti_0e_absp,
+ &ett_sna_nlp_opti_0f,
+ &ett_sna_nlp_opti_10,
+ &ett_sna_nlp_opti_12,
+ &ett_sna_nlp_opti_14,
+ &ett_sna_nlp_opti_14_si,
+ &ett_sna_nlp_opti_14_si_2,
+ &ett_sna_nlp_opti_14_rr,
+ &ett_sna_nlp_opti_14_rr_2,
+ &ett_sna_nlp_opti_22,
+ &ett_sna_nlp_opti_22_2,
+ &ett_sna_nlp_opti_22_3,
&ett_sna_rh,
&ett_sna_rh_0,
&ett_sna_rh_1,
&ett_sna_rh_2,
+ &ett_sna_gds,
+ &ett_sna_xid_0,
+ &ett_sna_xid_id,
+ &ett_sna_xid_3_8,
+ &ett_sna_xid_3_10,
+ &ett_sna_xid_3_11,
+ &ett_sna_xid_3_12,
+ &ett_sna_xid_3_15,
+ &ett_sna_control_un,
+ &ett_sna_control_05,
+ &ett_sna_control_05hpr,
+ &ett_sna_control_05hpr_type,
+ &ett_sna_control_0e,
};
+ module_t *sna_module;
- proto_sna = proto_register_protocol("Systems Network Architecture",
+ proto_sna = proto_register_protocol("Systems Network Architecture",
"SNA", "sna");
proto_register_field_array(proto_sna, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
register_dissector("sna", dissect_sna, proto_sna);
+
+ proto_sna_xid = proto_register_protocol(
+ "Systems Network Architecture XID", "SNA XID", "sna_xid");
+ register_dissector("sna_xid", dissect_sna_xid, proto_sna_xid);
+
+ /* Register configuration options */
+ sna_module = prefs_register_protocol(proto_sna, NULL);
+ prefs_register_bool_preference(sna_module, "defragment",
+ "Reassemble fragmented BIUs",
+ "Whether fragmented BIUs should be reassembled",
+ &sna_defragment);
}
void
proto_reg_handoff_sna(void)
{
- dissector_add("llc.dsap", SAP_SNA_PATHCTRL, dissect_sna,
- proto_sna);
+ dissector_handle_t sna_handle;
+ dissector_handle_t sna_xid_handle;
+
+ sna_handle = find_dissector("sna");
+ sna_xid_handle = find_dissector("sna_xid");
+ dissector_add("llc.dsap", SAP_SNA_PATHCTRL, sna_handle);
+ dissector_add("llc.dsap", SAP_SNA1, sna_handle);
+ dissector_add("llc.dsap", SAP_SNA2, sna_handle);
+ dissector_add("llc.dsap", SAP_SNA3, sna_handle);
+ dissector_add("llc.xid_dsap", SAP_SNA_PATHCTRL, sna_xid_handle);
+ dissector_add("llc.xid_dsap", SAP_SNA1, sna_xid_handle);
+ dissector_add("llc.xid_dsap", SAP_SNA2, sna_xid_handle);
+ dissector_add("llc.xid_dsap", SAP_SNA3, sna_xid_handle);
+ /* RFC 2043 */
+ dissector_add("ppp.protocol", PPP_SNA, sna_handle);
+ data_handle = find_dissector("data");
+
+ register_init_routine(sna_init);
}
git.samba.org / obnox / wireshark / wip.git / blobdiff