-/* packet-gsm_bsslap.c\r
- * Routines for Location Services (LCS) Serving Mobile Location Centre - Base Station System (SMLC-BSS) dissection\r
- * Copyright 2008, Anders Broman <anders.broman[at]ericsson.com>\r
- *\r
- * $Id: packet-amr.c 24022 2008-01-07 19:16:26Z etxrab $\r
- *\r
- * Wireshark - Network traffic analyzer\r
- * By Gerald Combs <gerald@wireshark.org>\r
- * Copyright 1998 Gerald Combs\r
- * \r
- * This program is free software; you can redistribute it and/or\r
- * modify it under the terms of the GNU General Public License\r
- * as published by the Free Software Foundation; either version 2\r
- * of the License, or (at your option) any later version.\r
- * \r
- * This program is distributed in the hope that it will be useful,\r
- * but WITHOUT ANY WARRANTY; without even the implied warranty of\r
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\r
- * GNU General Public License for more details.\r
- * \r
- * You should have received a copy of the GNU General Public License\r
- * along with this program; if not, write to the Free Software\r
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.\r
- *\r
- * References: 3GPP TS 48.071 version 7.2.0 Release 7\r
- */\r
-\r
-#ifdef HAVE_CONFIG_H\r
-# include "config.h"\r
-#endif\r
-\r
-#include <stdio.h>\r
-#include <stdlib.h>\r
-#include <string.h>\r
-\r
-#include <glib.h>\r
-\r
-#include <epan/packet.h>\r
-\r
-#include "packet-gsm_a.h"\r
-\r
-/* Initialize the protocol and registered fields */\r
-static int proto_gsm_bsslap = -1;\r
-static int hf_gsm_bsslap_msg_type = -1;\r
-static int hf_gsm_bsslap_ie = -1;\r
-static int hf_gsm_bsslap_cell_id = -1;\r
-static int hf_gsm_bsslap_ta = -1;\r
-static int hf_gsm_bsslap_length = -1;\r
-\r
-/* Initialize the subtree pointers */\r
-static int ett_gsm_bsslap = -1;\r
-static int ett_gsm_bsslap_ie = -1;\r
-static int ett_gsm_bsslap_ta = -1;\r
-static int ett_gsm_bsslap_meas_rep = -1;\r
-static int ett_gsm_bsslap_enh_meas_rep = -1;\r
-static int ett_gsm_bsslap_cell_id = -1;\r
-\r
-/* Table 5.1: Element Indentifier codes */\r
-\r
-static const value_string gsm_bsslap_ie_code_vals[] = {\r
- { 0x00, "Reserved" },\r
- { 0x01, "Timing Advance" },\r
- { 0x08, "Reserved" }, /* (note) */\r
- { 0x09, "Cell Identity" }, \r
- { 0x0a, "Reserved" }, /* (note) */\r
- { 0x0b, "Reserved" }, /* (note) */\r
- { 0x0c, "Reserved" }, /* (note) */\r
- { 0x10, "Channel Description" },\r
- { 0x11, "Reserved" }, /* (note) */\r
- { 0x12, "Reserved" }, /* (note) */\r
- { 0x13, "Reserved" }, /* (note) */\r
- { 0x14, "Measurement Report" },\r
- { 0x15, "Reserved" }, /* (note) */\r
- { 0x18, "Cause" },\r
- { 0x19, "RRLP Flag" },\r
- { 0x1b, "RRLP IE" },\r
- { 0x1c, "Cell Identity List" },\r
- { 0x1d, "Enhanced Measurement Report" },\r
- { 0x1e, "Location Area Code" },\r
- { 0x21, "Frequency List" },\r
- { 0x22, "MS Power" },\r
- { 0x23, "Delta Timer" },\r
- { 0x24, "Serving Cell Identifier" },\r
- { 0x25, "Encryption Key (Kc)" },\r
- { 0x26, "Cipher Mode Setting" },\r
- { 0x27, "Channel Mode" },\r
- { 0x28, "MultiRate Configuration" },\r
- { 0x29, "Polling Repetition" },\r
- { 0x2a, "Packet Channel Description" },\r
- { 0x2b, "TLLI" },\r
- { 0x2c, "TFI" },\r
- { 0x2d, "Starting Time" },\r
- { 0, NULL },\r
-};\r
-\r
-/*\r
- * NOTE: These values of the codepoints shall not be used as they were used in an earlier version of the\r
- * protocol.\r
- * All unassigned codes are spare.\r
- */\r
-\r
-\r
-#define BSSLAP_TA_REQUEST 1\r
-#define BSSLAP_TA_RESPONSE 2\r
-#define BSSLAP_REJECT 10\r
-#define BSSLAP_RESET 11\r
-#define BSSLAP_ABORT 12\r
-#define BSSLAP_TA_LAYER3 13\r
-#define BSSLAP_MS_POS_CMD 15\r
-#define BSSLAP_MS_POS_RES 16\r
-#define BSSLAP_U_TDOA_REQ 17\r
-#define BSSLAP_U_TDOA_RES 18\r
-\r
-/* Table 5.1.1: Message Type codes */\r
-static const value_string gsm_bsslap_msg_type_vals[] = {\r
- { 0x00, "Reserved" },\r
- { BSSLAP_TA_REQUEST, "TA REQUEST" },\r
- { BSSLAP_TA_RESPONSE, "TA RESPONSE" },\r
- { 0x04, "Reserved" },\r
- { 0x05, "Reserved" },\r
- { BSSLAP_REJECT, "REJECT" },\r
- { BSSLAP_RESET, "RESET" },\r
- { BSSLAP_ABORT, "ABORT" },\r
- { BSSLAP_TA_LAYER3, "TA LAYER3" },\r
- { BSSLAP_MS_POS_CMD, "MS Position Command" },\r
- { BSSLAP_MS_POS_RES, "MS Position Response" },\r
- { BSSLAP_U_TDOA_REQ, "U-TDOA Request" },\r
- { BSSLAP_U_TDOA_RES, "U-TDOA Response" },\r
- { 0, NULL }\r
-};\r
-\r
-/* 4.2.1 TA Request ETSI TS 148 071 V7.2.0 (2007-06) */\r
-static int\r
-dissect_gsm_bsslap_ta(tvbuff_t *tvb, proto_tree *tree, int offset)\r
-{\r
- /* Message Type IE / 5.1 M V 1 */\r
- proto_tree_add_item(tree, hf_gsm_bsslap_msg_type, tvb, offset, 1, FALSE);\r
- offset++;\r
- return offset;\r
-}\r
-\r
-/* 4.2.2 TA Response ETSI TS 148 071 V7.2.0 (2007-06) */\r
-static int\r
-dissect_gsm_bsslap_ta_res(tvbuff_t *tvb, proto_tree *tree, int offset)\r
-{\r
- proto_item *item = NULL;\r
- proto_tree *subtree = NULL;\r
- guint16 value;\r
- guint8 octet;\r
- guint8 length;\r
-\r
- /* Message Type IE / 5.1 M V 1 */\r
- proto_tree_add_item(tree, hf_gsm_bsslap_msg_type, tvb, offset, 1, FALSE);\r
- offset++;\r
-\r
- /* Cell Identity IE / 5.4 M TV 3 */\r
- item = proto_tree_add_text(tree,tvb, offset, 3,"Serving Cell Identity - ");\r
- subtree = proto_item_add_subtree(item, ett_gsm_bsslap_ie);\r
- proto_tree_add_item(subtree, hf_gsm_bsslap_ie, tvb, offset, 1, FALSE);\r
- offset++;\r
- value = tvb_get_ntohs(tvb, offset);\r
- proto_item_append_text(item ,"0x%x(%u)",value,value);\r
- proto_tree_add_item(subtree, hf_gsm_bsslap_cell_id, tvb, offset, 2, FALSE);\r
- offset = offset + 2;\r
-\r
- /* Timing Advance IE / 5.2 M TV 2 */\r
- item = proto_tree_add_text(tree,tvb, offset, 2,"Timing Advance - ");\r
- subtree = proto_item_add_subtree(item, ett_gsm_bsslap_ta);\r
- proto_tree_add_item(subtree, hf_gsm_bsslap_ie, tvb, offset, 1, FALSE);\r
- offset++;\r
- octet = tvb_get_guint8(tvb,offset);\r
- proto_tree_add_item(subtree, hf_gsm_bsslap_ta, tvb, offset, 1, FALSE);\r
- proto_item_append_text(item ,"%u",octet);\r
- offset++;\r
-\r
- if(tvb_reported_length_remaining(tvb,offset)==0){\r
- return offset;\r
- }\r
- /* Measurement Report IE / 5.12 O TLV 18 */\r
- item = proto_tree_add_text(tree,tvb, offset, 18,"Measurement Report");\r
- subtree = proto_item_add_subtree(item, ett_gsm_bsslap_meas_rep);\r
- proto_tree_add_item(subtree, hf_gsm_bsslap_ie, tvb, offset, 1, FALSE);\r
- offset++;\r
- length = tvb_get_guint8(tvb,offset);\r
- proto_tree_add_item(subtree, hf_gsm_bsslap_length, tvb, offset, 1, FALSE);\r
- offset++;\r
- /*TODO: Check this, may not give correct decoding */\r
- de_rr_meas_res(tvb, subtree, offset, length, NULL, 0);\r
- offset = offset + length;\r
- if(tvb_reported_length_remaining(tvb,offset)==0){\r
- return offset;\r
- }\r
-\r
- /* Enhanced Measurement Report IE / 5.18 O TLV 4-n */\r
- item = proto_tree_add_text(tree,tvb, offset, -1,"Enhanced Measurement Report");\r
- subtree = proto_item_add_subtree(item, ett_gsm_bsslap_enh_meas_rep);\r
- proto_tree_add_item(subtree, hf_gsm_bsslap_ie, tvb, offset, 1, FALSE);\r
- offset++;\r
- length = tvb_get_guint8(tvb,offset);\r
- proto_item_set_len(item, length+2);\r
- proto_tree_add_item(subtree, hf_gsm_bsslap_length, tvb, offset, 1, FALSE);\r
- offset++;\r
- proto_tree_add_text(tree,tvb, offset, length,"Data not decoded(yet)");\r
- offset = offset + length;\r
- if(tvb_reported_length_remaining(tvb,offset)==0){\r
- return offset;\r
- }\r
-\r
- /* Cell Identity List IE / 5.17 O TLV 6-n */\r
- item = proto_tree_add_text(tree,tvb, offset, -1,"Enhanced Measurement Report");\r
- subtree = proto_item_add_subtree(item, ett_gsm_bsslap_cell_id);\r
- proto_tree_add_item(subtree, hf_gsm_bsslap_ie, tvb, offset, 1, FALSE);\r
- offset++;\r
- length = tvb_get_guint8(tvb,offset);\r
- proto_item_set_len(item, length+2);\r
- proto_tree_add_item(subtree, hf_gsm_bsslap_length, tvb, offset, 1, FALSE);\r
- offset++;\r
- proto_tree_add_text(tree,tvb, offset, length,"Data not decoded(yet)");\r
- offset = offset + length;\r
-\r
- return offset;\r
-\r
-}\r
-\r
-\r
-/* 4.2.3 (void) ETSI TS 148 071 V7.2.0 (2007-06) */\r
-/* 4.2.4 (void) ETSI TS 148 071 V7.2.0 (2007-06) */\r
-/* 4.2.5 Reject ETSI TS 148 071 V7.2.0 (2007-06) */\r
-static int\r
-dissect_gsm_bsslap_reject(tvbuff_t *tvb, proto_tree *tree, int offset)\r
-{\r
- /* Message Type IE / 5.1 M V 1 */\r
- proto_tree_add_item(tree, hf_gsm_bsslap_msg_type, tvb, offset, 1, FALSE);\r
- offset++;\r
- return offset;\r
-}\r
-\r
-/* 4.2.6 Reset ETSI TS 148 071 V7.2.0 (2007-06) */\r
-static int\r
-dissect_gsm_bsslap_reset(tvbuff_t *tvb, proto_tree *tree, int offset)\r
-{\r
- /* Message Type IE / 5.1 M V 1 */\r
- proto_tree_add_item(tree, hf_gsm_bsslap_msg_type, tvb, offset, 1, FALSE);\r
- offset++;\r
- return offset;\r
-}\r
-\r
-/* 4.2.7 Abort ETSI TS 148 071 V7.2.0 (2007-06) */\r
-static int\r
-dissect_gsm_bsslap_abort(tvbuff_t *tvb, proto_tree *tree, int offset)\r
-{\r
- /* Message Type IE / 5.1 M V 1 */\r
- proto_tree_add_item(tree, hf_gsm_bsslap_msg_type, tvb, offset, 1, FALSE);\r
- offset++;\r
- return offset;\r
-}\r
-/* 4.2.8 TA Layer3 ETSI TS 148 071 V7.2.0 (2007-06) */\r
-static int\r
-dissect_gsm_bsslap_ta_layer3(tvbuff_t *tvb, proto_tree *tree, int offset)\r
-{\r
- /* Message Type IE / 5.1 M V 1 */\r
- proto_tree_add_item(tree, hf_gsm_bsslap_msg_type, tvb, offset, 1, FALSE);\r
- offset++;\r
- return offset;\r
-}\r
-/* 4.2.9 MS Position Command ETSI TS 148 071 V7.2.0 (2007-06) */\r
-static int\r
-dissect_gsm_bsslap_ms_pos_cmd(tvbuff_t *tvb, proto_tree *tree, int offset)\r
-{\r
- /* Message Type IE / 5.1 M V 1 */\r
- proto_tree_add_item(tree, hf_gsm_bsslap_msg_type, tvb, offset, 1, FALSE);\r
- offset++;\r
- return offset;\r
-}\r
-/* 4.2.10 MS Position Response ETSI TS 148 071 V7.2.0 (2007-06) */\r
-static int\r
-dissect_gsm_bsslap_ms_pos_res(tvbuff_t *tvb, proto_tree *tree, int offset)\r
-{\r
- /* Message Type IE / 5.1 M V 1 */\r
- proto_tree_add_item(tree, hf_gsm_bsslap_msg_type, tvb, offset, 1, FALSE);\r
- offset++;\r
- return offset;\r
-}\r
-/* 4.2.11 U-TDOA Request ETSI TS 148 071 V7.2.0 (2007-06) */\r
-static int\r
-dissect_gsm_bsslap_u_tdoa_req(tvbuff_t *tvb, proto_tree *tree, int offset)\r
-{\r
- /* Message Type IE / 5.1 M V 1 */\r
- proto_tree_add_item(tree, hf_gsm_bsslap_msg_type, tvb, offset, 1, FALSE);\r
- offset++;\r
- return offset;\r
-}\r
-/* 4.2.12 U-TDOA Response ETSI TS 148 071 V7.2.0 (2007-06) */\r
-static int\r
-dissect_gsm_bsslap_u_tdoa_res(tvbuff_t *tvb, proto_tree *tree, int offset)\r
-{\r
- /* Message Type IE / 5.1 M V 1 */\r
- proto_tree_add_item(tree, hf_gsm_bsslap_msg_type, tvb, offset, 1, FALSE);\r
- offset++;\r
- return offset;\r
-}\r
-\r
-\r
-static void\r
-dissect_gsm_bsslap_apdu(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)\r
-{\r
- proto_item *item;\r
- proto_tree *sub_tree;\r
- int offset=0;\r
- guint8 octet;\r
-\r
-/* Make entries in Protocol column and Info column on summary display */\r
- if (check_col(pinfo->cinfo, COL_PROTOCOL))\r
- col_append_str(pinfo->cinfo, COL_PROTOCOL, "/BSSLAP");\r
- if (tree) {\r
- octet = tvb_get_guint8(tvb, offset);\r
- item = proto_tree_add_item(tree, proto_gsm_bsslap, tvb, 0, -1, FALSE);\r
- sub_tree = proto_item_add_subtree(item, ett_gsm_bsslap);\r
-\r
- switch (octet){\r
- case BSSLAP_TA_REQUEST:\r
- offset = dissect_gsm_bsslap_ta(tvb, sub_tree, offset);\r
- break;\r
- case BSSLAP_TA_RESPONSE:\r
- offset = dissect_gsm_bsslap_ta_res(tvb, sub_tree, offset); \r
- break;\r
- case BSSLAP_REJECT:\r
- offset = dissect_gsm_bsslap_reject(tvb, sub_tree, offset);\r
- break;\r
- case BSSLAP_RESET:\r
- offset = dissect_gsm_bsslap_reset(tvb, sub_tree, offset);\r
- break;\r
- case BSSLAP_ABORT: \r
- offset = dissect_gsm_bsslap_abort(tvb, sub_tree, offset);\r
- break;\r
- case BSSLAP_TA_LAYER3:\r
- offset = dissect_gsm_bsslap_ta_layer3(tvb, sub_tree, offset);\r
- break;\r
- case BSSLAP_MS_POS_CMD:\r
- offset = dissect_gsm_bsslap_ms_pos_cmd(tvb, sub_tree, offset);\r
- break;\r
- case BSSLAP_MS_POS_RES:\r
- offset = dissect_gsm_bsslap_ms_pos_res(tvb, sub_tree, offset);\r
- break;\r
- case BSSLAP_U_TDOA_REQ:\r
- offset = dissect_gsm_bsslap_u_tdoa_req(tvb, sub_tree, offset);\r
- break;\r
- case BSSLAP_U_TDOA_RES:\r
- offset = dissect_gsm_bsslap_u_tdoa_res(tvb, sub_tree, offset);\r
- break;\r
- default:\r
- break;\r
- }\r
- }\r
-\r
-\r
-}\r
-\r
-void\r
-proto_reg_handoff_gsm_bsslap(void)\r
-{\r
- dissector_handle_t gsm_bsslap_handle;\r
- \r
- gsm_bsslap_handle = create_dissector_handle(dissect_gsm_bsslap_apdu, proto_gsm_bsslap);\r
-\r
-}\r
-\r
-void\r
-proto_register_gsm_bsslap(void)\r
-{ \r
-\r
-\r
-/* Setup list of header fields See Section 1.6.1 for details*/\r
- static hf_register_info hf[] = {\r
- { &hf_gsm_bsslap_msg_type,\r
- { "Message Type IE", "gsm_bsslap.msg_type",\r
- FT_UINT8, BASE_DEC, VALS(gsm_bsslap_msg_type_vals), 0x0, \r
- "Message Type IE", HFILL }\r
- },\r
- { &hf_gsm_bsslap_ie,\r
- { "Element identifier", "gsm_bsslap.ie",\r
- FT_UINT8, BASE_DEC, VALS(gsm_bsslap_ie_code_vals), 0x0, \r
- "Message Type IE", HFILL }\r
- },\r
- { &hf_gsm_bsslap_cell_id,\r
- { "Cell ID", "gsm_bsslap.cell_id",\r
- FT_UINT16, BASE_HEX_DEC, 0, 0x0,\r
- "", HFILL }\r
- },\r
- { &hf_gsm_bsslap_ta,\r
- { "Timing Advance", "gsm_bsslap.ta",\r
- FT_UINT8, BASE_HEX, NULL, 0x0, \r
- "Timing Advance", HFILL }\r
- },\r
- { &hf_gsm_bsslap_length,\r
- { "Length", "gsm_bsslap.length",\r
- FT_UINT8, BASE_DEC, NULL, 0x0, \r
- "Length", HFILL }\r
- },\r
- };\r
-\r
-/* Setup protocol subtree array */\r
- static gint *ett[] = {\r
- &ett_gsm_bsslap,\r
- &ett_gsm_bsslap_ie,\r
- &ett_gsm_bsslap_ta,\r
- &ett_gsm_bsslap_meas_rep,\r
- &ett_gsm_bsslap_enh_meas_rep,\r
- &ett_gsm_bsslap_cell_id,\r
- };\r
-\r
-/* Register the protocol name and description */\r
- proto_gsm_bsslap = \r
- proto_register_protocol("BSS LCS Assistance Protocol",\r
- "BSSLAP", "bsslap");\r
-\r
-/* Required function calls to register the header fields and subtrees used */\r
- proto_register_field_array(proto_gsm_bsslap, hf, array_length(hf));\r
- proto_register_subtree_array(ett, array_length(ett));\r
-\r
- register_dissector("gsm_bsslap", dissect_gsm_bsslap_apdu, proto_gsm_bsslap);\r
-}
\ No newline at end of file
+/* packet-gsm_bsslap.c
+ * Routines for Location Services (LCS) Serving Mobile Location Centre - Base Station System (SMLC-BSS) dissection
+ * Copyright 2008, Anders Broman <anders.broman[at]ericsson.com>
+ *
+ * $Id$
+ *
+ * Wireshark - Network traffic analyzer
+ * By Gerald Combs <gerald@wireshark.org>
+ * 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.
+ *
+ * References: 3GPP TS 48.071 version 7.2.0 Release 7
+ */
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <glib.h>
+
+#include <epan/packet.h>
+
+#include "packet-gsm_a.h"
+
+/* Initialize the protocol and registered fields */
+static int proto_gsm_bsslap = -1;
+static int hf_gsm_bsslap_msg_type = -1;
+static int hf_gsm_bsslap_ie = -1;
+static int hf_gsm_bsslap_cell_id = -1;
+static int hf_gsm_bsslap_ta = -1;
+static int hf_gsm_bsslap_length = -1;
+
+/* Initialize the subtree pointers */
+static int ett_gsm_bsslap = -1;
+static int ett_gsm_bsslap_ie = -1;
+static int ett_gsm_bsslap_ta = -1;
+static int ett_gsm_bsslap_meas_rep = -1;
+static int ett_gsm_bsslap_enh_meas_rep = -1;
+static int ett_gsm_bsslap_cell_id = -1;
+
+/* Table 5.1: Element Indentifier codes */
+
+static const value_string gsm_bsslap_ie_code_vals[] = {
+ { 0x00, "Reserved" },
+ { 0x01, "Timing Advance" },
+ { 0x08, "Reserved" }, /* (note) */
+ { 0x09, "Cell Identity" },
+ { 0x0a, "Reserved" }, /* (note) */
+ { 0x0b, "Reserved" }, /* (note) */
+ { 0x0c, "Reserved" }, /* (note) */
+ { 0x10, "Channel Description" },
+ { 0x11, "Reserved" }, /* (note) */
+ { 0x12, "Reserved" }, /* (note) */
+ { 0x13, "Reserved" }, /* (note) */
+ { 0x14, "Measurement Report" },
+ { 0x15, "Reserved" }, /* (note) */
+ { 0x18, "Cause" },
+ { 0x19, "RRLP Flag" },
+ { 0x1b, "RRLP IE" },
+ { 0x1c, "Cell Identity List" },
+ { 0x1d, "Enhanced Measurement Report" },
+ { 0x1e, "Location Area Code" },
+ { 0x21, "Frequency List" },
+ { 0x22, "MS Power" },
+ { 0x23, "Delta Timer" },
+ { 0x24, "Serving Cell Identifier" },
+ { 0x25, "Encryption Key (Kc)" },
+ { 0x26, "Cipher Mode Setting" },
+ { 0x27, "Channel Mode" },
+ { 0x28, "MultiRate Configuration" },
+ { 0x29, "Polling Repetition" },
+ { 0x2a, "Packet Channel Description" },
+ { 0x2b, "TLLI" },
+ { 0x2c, "TFI" },
+ { 0x2d, "Starting Time" },
+ { 0, NULL },
+};
+
+/*
+ * NOTE: These values of the codepoints shall not be used as they were used in an earlier version of the
+ * protocol.
+ * All unassigned codes are spare.
+ */
+
+
+#define BSSLAP_TA_REQUEST 1
+#define BSSLAP_TA_RESPONSE 2
+#define BSSLAP_REJECT 10
+#define BSSLAP_RESET 11
+#define BSSLAP_ABORT 12
+#define BSSLAP_TA_LAYER3 13
+#define BSSLAP_MS_POS_CMD 15
+#define BSSLAP_MS_POS_RES 16
+#define BSSLAP_U_TDOA_REQ 17
+#define BSSLAP_U_TDOA_RES 18
+
+/* Table 5.1.1: Message Type codes */
+static const value_string gsm_bsslap_msg_type_vals[] = {
+ { 0x00, "Reserved" },
+ { BSSLAP_TA_REQUEST, "TA REQUEST" },
+ { BSSLAP_TA_RESPONSE, "TA RESPONSE" },
+ { 0x04, "Reserved" },
+ { 0x05, "Reserved" },
+ { BSSLAP_REJECT, "REJECT" },
+ { BSSLAP_RESET, "RESET" },
+ { BSSLAP_ABORT, "ABORT" },
+ { BSSLAP_TA_LAYER3, "TA LAYER3" },
+ { BSSLAP_MS_POS_CMD, "MS Position Command" },
+ { BSSLAP_MS_POS_RES, "MS Position Response" },
+ { BSSLAP_U_TDOA_REQ, "U-TDOA Request" },
+ { BSSLAP_U_TDOA_RES, "U-TDOA Response" },
+ { 0, NULL }
+};
+
+/* 4.2.1 TA Request ETSI TS 148 071 V7.2.0 (2007-06) */
+static int
+dissect_gsm_bsslap_ta(tvbuff_t *tvb, proto_tree *tree, int offset)
+{
+ /* Message Type IE / 5.1 M V 1 */
+ proto_tree_add_item(tree, hf_gsm_bsslap_msg_type, tvb, offset, 1, FALSE);
+ offset++;
+ return offset;
+}
+
+/* 4.2.2 TA Response ETSI TS 148 071 V7.2.0 (2007-06) */
+static int
+dissect_gsm_bsslap_ta_res(tvbuff_t *tvb, proto_tree *tree, int offset)
+{
+ proto_item *item = NULL;
+ proto_tree *subtree = NULL;
+ guint16 value;
+ guint8 octet;
+ guint8 length;
+
+ /* Message Type IE / 5.1 M V 1 */
+ proto_tree_add_item(tree, hf_gsm_bsslap_msg_type, tvb, offset, 1, FALSE);
+ offset++;
+
+ /* Cell Identity IE / 5.4 M TV 3 */
+ item = proto_tree_add_text(tree,tvb, offset, 3,"Serving Cell Identity - ");
+ subtree = proto_item_add_subtree(item, ett_gsm_bsslap_ie);
+ proto_tree_add_item(subtree, hf_gsm_bsslap_ie, tvb, offset, 1, FALSE);
+ offset++;
+ value = tvb_get_ntohs(tvb, offset);
+ proto_item_append_text(item ,"0x%x(%u)",value,value);
+ proto_tree_add_item(subtree, hf_gsm_bsslap_cell_id, tvb, offset, 2, FALSE);
+ offset = offset + 2;
+
+ /* Timing Advance IE / 5.2 M TV 2 */
+ item = proto_tree_add_text(tree,tvb, offset, 2,"Timing Advance - ");
+ subtree = proto_item_add_subtree(item, ett_gsm_bsslap_ta);
+ proto_tree_add_item(subtree, hf_gsm_bsslap_ie, tvb, offset, 1, FALSE);
+ offset++;
+ octet = tvb_get_guint8(tvb,offset);
+ proto_tree_add_item(subtree, hf_gsm_bsslap_ta, tvb, offset, 1, FALSE);
+ proto_item_append_text(item ,"%u",octet);
+ offset++;
+
+ if(tvb_reported_length_remaining(tvb,offset)==0){
+ return offset;
+ }
+ /* Measurement Report IE / 5.12 O TLV 18 */
+ item = proto_tree_add_text(tree,tvb, offset, 18,"Measurement Report");
+ subtree = proto_item_add_subtree(item, ett_gsm_bsslap_meas_rep);
+ proto_tree_add_item(subtree, hf_gsm_bsslap_ie, tvb, offset, 1, FALSE);
+ offset++;
+ length = tvb_get_guint8(tvb,offset);
+ proto_tree_add_item(subtree, hf_gsm_bsslap_length, tvb, offset, 1, FALSE);
+ offset++;
+ /*TODO: Check this, may not give correct decoding */
+ de_rr_meas_res(tvb, subtree, offset, length, NULL, 0);
+ offset = offset + length;
+ if(tvb_reported_length_remaining(tvb,offset)==0){
+ return offset;
+ }
+
+ /* Enhanced Measurement Report IE / 5.18 O TLV 4-n */
+ item = proto_tree_add_text(tree,tvb, offset, -1,"Enhanced Measurement Report");
+ subtree = proto_item_add_subtree(item, ett_gsm_bsslap_enh_meas_rep);
+ proto_tree_add_item(subtree, hf_gsm_bsslap_ie, tvb, offset, 1, FALSE);
+ offset++;
+ length = tvb_get_guint8(tvb,offset);
+ proto_item_set_len(item, length+2);
+ proto_tree_add_item(subtree, hf_gsm_bsslap_length, tvb, offset, 1, FALSE);
+ offset++;
+ proto_tree_add_text(tree,tvb, offset, length,"Data not decoded(yet)");
+ offset = offset + length;
+ if(tvb_reported_length_remaining(tvb,offset)==0){
+ return offset;
+ }
+
+ /* Cell Identity List IE / 5.17 O TLV 6-n */
+ item = proto_tree_add_text(tree,tvb, offset, -1,"Enhanced Measurement Report");
+ subtree = proto_item_add_subtree(item, ett_gsm_bsslap_cell_id);
+ proto_tree_add_item(subtree, hf_gsm_bsslap_ie, tvb, offset, 1, FALSE);
+ offset++;
+ length = tvb_get_guint8(tvb,offset);
+ proto_item_set_len(item, length+2);
+ proto_tree_add_item(subtree, hf_gsm_bsslap_length, tvb, offset, 1, FALSE);
+ offset++;
+ proto_tree_add_text(tree,tvb, offset, length,"Data not decoded(yet)");
+ offset = offset + length;
+
+ return offset;
+
+}
+
+
+/* 4.2.3 (void) ETSI TS 148 071 V7.2.0 (2007-06) */
+/* 4.2.4 (void) ETSI TS 148 071 V7.2.0 (2007-06) */
+/* 4.2.5 Reject ETSI TS 148 071 V7.2.0 (2007-06) */
+static int
+dissect_gsm_bsslap_reject(tvbuff_t *tvb, proto_tree *tree, int offset)
+{
+ /* Message Type IE / 5.1 M V 1 */
+ proto_tree_add_item(tree, hf_gsm_bsslap_msg_type, tvb, offset, 1, FALSE);
+ offset++;
+ return offset;
+}
+
+/* 4.2.6 Reset ETSI TS 148 071 V7.2.0 (2007-06) */
+static int
+dissect_gsm_bsslap_reset(tvbuff_t *tvb, proto_tree *tree, int offset)
+{
+ /* Message Type IE / 5.1 M V 1 */
+ proto_tree_add_item(tree, hf_gsm_bsslap_msg_type, tvb, offset, 1, FALSE);
+ offset++;
+ return offset;
+}
+
+/* 4.2.7 Abort ETSI TS 148 071 V7.2.0 (2007-06) */
+static int
+dissect_gsm_bsslap_abort(tvbuff_t *tvb, proto_tree *tree, int offset)
+{
+ /* Message Type IE / 5.1 M V 1 */
+ proto_tree_add_item(tree, hf_gsm_bsslap_msg_type, tvb, offset, 1, FALSE);
+ offset++;
+ return offset;
+}
+/* 4.2.8 TA Layer3 ETSI TS 148 071 V7.2.0 (2007-06) */
+static int
+dissect_gsm_bsslap_ta_layer3(tvbuff_t *tvb, proto_tree *tree, int offset)
+{
+ /* Message Type IE / 5.1 M V 1 */
+ proto_tree_add_item(tree, hf_gsm_bsslap_msg_type, tvb, offset, 1, FALSE);
+ offset++;
+ return offset;
+}
+/* 4.2.9 MS Position Command ETSI TS 148 071 V7.2.0 (2007-06) */
+static int
+dissect_gsm_bsslap_ms_pos_cmd(tvbuff_t *tvb, proto_tree *tree, int offset)
+{
+ /* Message Type IE / 5.1 M V 1 */
+ proto_tree_add_item(tree, hf_gsm_bsslap_msg_type, tvb, offset, 1, FALSE);
+ offset++;
+ return offset;
+}
+/* 4.2.10 MS Position Response ETSI TS 148 071 V7.2.0 (2007-06) */
+static int
+dissect_gsm_bsslap_ms_pos_res(tvbuff_t *tvb, proto_tree *tree, int offset)
+{
+ /* Message Type IE / 5.1 M V 1 */
+ proto_tree_add_item(tree, hf_gsm_bsslap_msg_type, tvb, offset, 1, FALSE);
+ offset++;
+ return offset;
+}
+/* 4.2.11 U-TDOA Request ETSI TS 148 071 V7.2.0 (2007-06) */
+static int
+dissect_gsm_bsslap_u_tdoa_req(tvbuff_t *tvb, proto_tree *tree, int offset)
+{
+ /* Message Type IE / 5.1 M V 1 */
+ proto_tree_add_item(tree, hf_gsm_bsslap_msg_type, tvb, offset, 1, FALSE);
+ offset++;
+ return offset;
+}
+/* 4.2.12 U-TDOA Response ETSI TS 148 071 V7.2.0 (2007-06) */
+static int
+dissect_gsm_bsslap_u_tdoa_res(tvbuff_t *tvb, proto_tree *tree, int offset)
+{
+ /* Message Type IE / 5.1 M V 1 */
+ proto_tree_add_item(tree, hf_gsm_bsslap_msg_type, tvb, offset, 1, FALSE);
+ offset++;
+ return offset;
+}
+
+
+static void
+dissect_gsm_bsslap_apdu(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
+{
+ proto_item *item;
+ proto_tree *sub_tree;
+ int offset=0;
+ guint8 octet;
+
+/* Make entries in Protocol column and Info column on summary display */
+ if (check_col(pinfo->cinfo, COL_PROTOCOL))
+ col_append_str(pinfo->cinfo, COL_PROTOCOL, "/BSSLAP");
+ if (tree) {
+ octet = tvb_get_guint8(tvb, offset);
+ item = proto_tree_add_item(tree, proto_gsm_bsslap, tvb, 0, -1, FALSE);
+ sub_tree = proto_item_add_subtree(item, ett_gsm_bsslap);
+
+ switch (octet){
+ case BSSLAP_TA_REQUEST:
+ offset = dissect_gsm_bsslap_ta(tvb, sub_tree, offset);
+ break;
+ case BSSLAP_TA_RESPONSE:
+ offset = dissect_gsm_bsslap_ta_res(tvb, sub_tree, offset);
+ break;
+ case BSSLAP_REJECT:
+ offset = dissect_gsm_bsslap_reject(tvb, sub_tree, offset);
+ break;
+ case BSSLAP_RESET:
+ offset = dissect_gsm_bsslap_reset(tvb, sub_tree, offset);
+ break;
+ case BSSLAP_ABORT:
+ offset = dissect_gsm_bsslap_abort(tvb, sub_tree, offset);
+ break;
+ case BSSLAP_TA_LAYER3:
+ offset = dissect_gsm_bsslap_ta_layer3(tvb, sub_tree, offset);
+ break;
+ case BSSLAP_MS_POS_CMD:
+ offset = dissect_gsm_bsslap_ms_pos_cmd(tvb, sub_tree, offset);
+ break;
+ case BSSLAP_MS_POS_RES:
+ offset = dissect_gsm_bsslap_ms_pos_res(tvb, sub_tree, offset);
+ break;
+ case BSSLAP_U_TDOA_REQ:
+ offset = dissect_gsm_bsslap_u_tdoa_req(tvb, sub_tree, offset);
+ break;
+ case BSSLAP_U_TDOA_RES:
+ offset = dissect_gsm_bsslap_u_tdoa_res(tvb, sub_tree, offset);
+ break;
+ default:
+ break;
+ }
+ }
+
+
+}
+
+void
+proto_reg_handoff_gsm_bsslap(void)
+{
+ dissector_handle_t gsm_bsslap_handle;
+
+ gsm_bsslap_handle = create_dissector_handle(dissect_gsm_bsslap_apdu, proto_gsm_bsslap);
+
+}
+
+void
+proto_register_gsm_bsslap(void)
+{
+
+
+/* Setup list of header fields See Section 1.6.1 for details*/
+ static hf_register_info hf[] = {
+ { &hf_gsm_bsslap_msg_type,
+ { "Message Type IE", "gsm_bsslap.msg_type",
+ FT_UINT8, BASE_DEC, VALS(gsm_bsslap_msg_type_vals), 0x0,
+ "Message Type IE", HFILL }
+ },
+ { &hf_gsm_bsslap_ie,
+ { "Element identifier", "gsm_bsslap.ie",
+ FT_UINT8, BASE_DEC, VALS(gsm_bsslap_ie_code_vals), 0x0,
+ "Message Type IE", HFILL }
+ },
+ { &hf_gsm_bsslap_cell_id,
+ { "Cell ID", "gsm_bsslap.cell_id",
+ FT_UINT16, BASE_HEX_DEC, 0, 0x0,
+ "", HFILL }
+ },
+ { &hf_gsm_bsslap_ta,
+ { "Timing Advance", "gsm_bsslap.ta",
+ FT_UINT8, BASE_HEX, NULL, 0x0,
+ "Timing Advance", HFILL }
+ },
+ { &hf_gsm_bsslap_length,
+ { "Length", "gsm_bsslap.length",
+ FT_UINT8, BASE_DEC, NULL, 0x0,
+ "Length", HFILL }
+ },
+ };
+
+/* Setup protocol subtree array */
+ static gint *ett[] = {
+ &ett_gsm_bsslap,
+ &ett_gsm_bsslap_ie,
+ &ett_gsm_bsslap_ta,
+ &ett_gsm_bsslap_meas_rep,
+ &ett_gsm_bsslap_enh_meas_rep,
+ &ett_gsm_bsslap_cell_id,
+ };
+
+/* Register the protocol name and description */
+ proto_gsm_bsslap =
+ proto_register_protocol("BSS LCS Assistance Protocol",
+ "BSSLAP", "bsslap");
+
+/* Required function calls to register the header fields and subtrees used */
+ proto_register_field_array(proto_gsm_bsslap, hf, array_length(hf));
+ proto_register_subtree_array(ett, array_length(ett));
+
+ register_dissector("gsm_bsslap", dissect_gsm_bsslap_apdu, proto_gsm_bsslap);
+}
git.samba.org / obnox / wireshark / wip.git / commitdiff