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osmo-msc/wireshark/rsl-ipaccess.patch

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Index: wireshark/epan/dissectors/packet-rsl.c
===================================================================
--- wireshark.orig/epan/dissectors/packet-rsl.c 2009-02-22 15:39:34.000000000 +0100
+++ wireshark/epan/dissectors/packet-rsl.c 2009-02-22 17:27:51.000000000 +0100
@@ -2,6 +2,7 @@
* Routines for Radio Signalling Link (RSL) dissection.
*
* Copyright 2007, Anders Broman <anders.broman@ericsson.com>
+ * Copyright 2009, Harald Welte <laforge@gnumonks.org>
*
* $Id: packet-rsl.c 27065 2008-12-20 00:09:02Z wmeier $
*
@@ -116,6 +117,14 @@
static int hf_rsl_rtd = -1;
static int hf_rsl_delay_ind = -1;
static int hf_rsl_tfo = -1;
+static int hf_rsl_f4 = -1;
+static int hf_rsl_f6 = -1;
+static int hf_rsl_f8 = -1;
+static int hf_rsl_fc = -1;
+static int hf_rsl_local_port = -1;
+static int hf_rsl_remote_port = -1;
+static int hf_rsl_local_ip = -1;
+static int hf_rsl_remote_ip = -1;
/* Initialize the subtree pointers */
static int ett_rsl = -1;
@@ -173,6 +182,15 @@
static int ett_ie_meas_res_no = -1;
static int ett_ie_message_id = -1;
static int ett_ie_sys_info_type = -1;
+static int ett_ie_f4 = -1;
+static int ett_ie_f6 = -1;
+static int ett_ie_f8 = -1;
+static int ett_ie_remote_ip = -1;
+static int ett_ie_remote_port = -1;
+static int ett_ie_local_port = -1;
+static int ett_ie_local_ip = -1;
+static int ett_ie_fc = -1;
+
proto_tree *top_tree;
dissector_handle_t gsm_a_ccch_handle;
@@ -208,8 +226,11 @@
{ 0x06, "Common Channel Management messages" },
{ 0x08, "TRX Management messages" },
{ 0x16, "Location Services messages" },
+ { 0x3f, "ip.access Vendor Specific messages" },
{ 0, NULL }
};
+#define RSL_MSGDISC_IPACCESS 0x3f
+
/*
* 9.2 MESSAGE TYPE
*/
@@ -338,6 +359,14 @@
{ 0x3f, "TFO MODification REQuest" }, /* 8.4.31 */
/* 0 1 - - - - - - Location Services messages: */
{ 0x41, "Location Information" }, /* 8.7.1 */
+ /* ip.access */
+ { 0x70, "ip.access BIND" },
+ { 0x71, "ip.access BIND ACK" },
+ { 0x72, "ip.access BIND NACK" },
+ { 0x73, "ip.access CONNECT" },
+ { 0x74, "ip.access CONNECT ACK" },
+ { 0x75, "ip.access CONNECT NACK" },
+ { 0x76, "ip.access DISCONNECT INDication" },
{ 0, NULL }
};
@@ -477,6 +506,10 @@
Not used
*/
+ { 0xf0, "Remote IP Address" },
+ { 0xf1, "Remote RTP Port" },
+ { 0xf3, "Local RTP Port" },
+ { 0xf5, "Local IP Address" },
{ 0, NULL }
};
@@ -2043,7 +2076,6 @@
proto_item_set_len(ti, length+2);
proto_tree_add_item(ie_tree, hf_rsl_ie_length, tvb, offset, 1, FALSE);
- offset++;
/* Received Message */
offset = dissct_rsl_msg(tvb, pinfo, ie_tree, offset);
@@ -2907,13 +2939,320 @@
return ie_offset + length;
}
+/* Vendor-Specific messages of ip.access nanoBTS. There is no public documentation
+ * about those extensions, all information in this dissector is based on lawful
+ * protocol reverse enginering by Harald Welte <laforge@gnumonks.org> */
+#define RSL_MSG_TYPE_IPAC_BIND 0x70
+#define RSL_MSG_TYPE_IPAC_BIND_ACK 0x71
+#define RSL_MSG_TYPE_IPAC_BIND_NACK 0x72
+#define RSL_MSG_TYPE_IPAC_CONNECT 0x73
+#define RSL_MSG_TYPE_IPAC_CONNECT_ACK 0x74
+#define RSL_MSG_TYPE_IPAC_CONNECT_NACK 0x75
+#define RSL_MSG_TYPE_IPAC_DISC_IND 0x76
+#define RSL_IE_IPAC_REMOTE_IP 0xf0
+#define RSL_IE_IPAC_REMOTE_PORT 0xf1
+#define RSL_IE_IPAC_LOCAL_PORT 0xf3
+#define RSL_IE_IPAC_LOCAL_IP 0xf5
+
+static int
+dissect_rsl_ipac_ie_f8(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, gboolean is_mandatory)
+{
+ proto_item *ti;
+ proto_tree *ie_tree;
+ guint8 ie_id;
+
+ if (is_mandatory == FALSE) {
+ ie_id = tvb_get_guint8(tvb, offset);
+ if (ie_id != 0xf8)
+ return offset;
+ }
+
+ ti = proto_tree_add_text(tree, tvb, offset, 0, "Unknown 0xf8 IE");
+ ie_tree = proto_item_add_subtree(ti, ett_ie_f8);
+
+ /* Element identifier */
+ proto_tree_add_item(ie_tree, hf_rsl_ie_id, tvb, offset, 1, FALSE);
+ offset++;
+ /* Fixed Length */
+ proto_item_set_len(ti, 3);
+
+ proto_tree_add_item(ie_tree, hf_rsl_f8, tvb, offset, 2, FALSE);
+ offset += 2;
+
+ return offset;
+}
+
+static int
+dissect_rsl_ipac_ie_local_port(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, gboolean is_mandatory)
+{
+ proto_item *ti;
+ proto_tree *ie_tree;
+ guint8 ie_id;
+
+ if (is_mandatory == FALSE) {
+ ie_id = tvb_get_guint8(tvb, offset);
+ if (ie_id != RSL_IE_IPAC_LOCAL_PORT)
+ return offset;
+ }
+
+ ti = proto_tree_add_text(tree, tvb, offset, 0, "Local RTP Port IE");
+ ie_tree = proto_item_add_subtree(ti, ett_ie_local_port);
+
+ /* Element identifier */
+ proto_tree_add_item(ie_tree, hf_rsl_ie_id, tvb, offset, 1, FALSE);
+ offset++;
+ /* Fixed Length */
+ proto_item_set_len(ti, 3);
+
+ proto_tree_add_item(ie_tree, hf_rsl_local_port, tvb, offset, 2, FALSE);
+ offset += 2;
+
+ return offset;
+}
+
+static int
+dissect_rsl_ipac_ie_remote_port(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, gboolean is_mandatory)
+{
+ proto_item *ti;
+ proto_tree *ie_tree;
+ guint8 ie_id;
+
+ if (is_mandatory == FALSE) {
+ ie_id = tvb_get_guint8(tvb, offset);
+ if (ie_id != RSL_IE_IPAC_REMOTE_PORT)
+ return offset;
+ }
+
+ ti = proto_tree_add_text(tree, tvb, offset, 0, "Remote RTP Port IE");
+ ie_tree = proto_item_add_subtree(ti, ett_ie_remote_port);
+
+ /* Element identifier */
+ proto_tree_add_item(ie_tree, hf_rsl_ie_id, tvb, offset, 1, FALSE);
+ offset++;
+ /* Fixed Length */
+ proto_item_set_len(ti, 3);
+
+ proto_tree_add_uint(ie_tree, hf_rsl_remote_port, tvb, offset, 2, FALSE);
+ offset += 2;
+
+ return offset;
+}
+
+static int
+dissect_rsl_ipac_ie_local_ip(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, gboolean is_mandatory)
+{
+ proto_item *ti;
+ proto_tree *ie_tree;
+ guint8 ie_id;
+ guint32 ip;
+
+ if (is_mandatory == FALSE) {
+ ie_id = tvb_get_guint8(tvb, offset);
+ if (ie_id != RSL_IE_IPAC_LOCAL_IP)
+ return offset;
+ }
+
+ ti = proto_tree_add_text(tree, tvb, offset, 0, "Local IP Address IE");
+ ie_tree = proto_item_add_subtree(ti, ett_ie_local_ip);
+
+ /* Element identifier */
+ proto_tree_add_item(ie_tree, hf_rsl_ie_id, tvb, offset, 1, FALSE);
+ offset++;
+ /* Fixed Length */
+ proto_item_set_len(ti, 5);
+
+ ip = tvb_get_ipv4(tvb, offset);
+ proto_tree_add_ipv4(ie_tree, hf_rsl_local_ip, tvb, offset, 4, ip);
+ offset += 4;
+
+ return offset;
+}
+
+static int
+dissect_rsl_ipac_ie_remote_ip(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, gboolean is_mandatory)
+{
+ proto_item *ti;
+ proto_tree *ie_tree;
+ guint8 ie_id;
+ guint32 ip;
+
+ if (is_mandatory == FALSE) {
+ ie_id = tvb_get_guint8(tvb, offset);
+ if (ie_id != RSL_IE_IPAC_REMOTE_IP)
+ return offset;
+ }
+
+ ti = proto_tree_add_text(tree, tvb, offset, 0, "Remote IP Address IE");
+ ie_tree = proto_item_add_subtree(ti, ett_ie_remote_ip);
+
+ /* Element identifier */
+ proto_tree_add_item(ie_tree, hf_rsl_ie_id, tvb, offset, 1, FALSE);
+ offset++;
+ /* Fixed Length */
+ proto_item_set_len(ti, 5);
+
+ ip = tvb_get_ipv4(tvb, offset);
+ proto_tree_add_ipv4(ie_tree, hf_rsl_remote_ip, tvb, offset, 4, ip);
+ offset += 4;
+
+ return offset;
+}
+
+static int
+dissect_rsl_ipac_ie_f6(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, gboolean is_mandatory)
+{
+ proto_item *ti;
+ proto_tree *ie_tree;
+ guint8 length;
+ guint8 ie_id;
+
+ if (is_mandatory == FALSE) {
+ ie_id = tvb_get_guint8(tvb, offset);
+ if (ie_id != 0xf6)
+ return offset;
+ }
+
+ ti = proto_tree_add_text(tree, tvb, offset, 0, "Unknown 0xf6 IE");
+ ie_tree = proto_item_add_subtree(ti, ett_ie_f6);
+
+ /* Element identifier */
+ proto_tree_add_item(ie_tree, hf_rsl_ie_id, tvb, offset, 1, FALSE);
+ offset++;
+
+ /* Length */
+ length = tvb_get_guint8(tvb, offset);
+ offset++;
+ proto_item_set_len(ti, length+2);
+
+ proto_tree_add_bytes(ie_tree, hf_rsl_f6, tvb, offset, length,
+ tvb_get_ptr(tvb, offset, length));
+ offset += length;
+
+ return offset;
+}
+
+static int
+dissect_rsl_ipac_ie_f4(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, gboolean is_mandatory)
+{
+ proto_item *ti;
+ proto_tree *ie_tree;
+ guint8 ie_id;
+
+ if (is_mandatory == FALSE) {
+ ie_id = tvb_get_guint8(tvb, offset);
+ if (ie_id != 0xf4)
+ return offset;
+ }
+
+ ti = proto_tree_add_text(tree, tvb, offset, 0, "Unknown 0xf4 IE");
+ ie_tree = proto_item_add_subtree(ti, ett_ie_f4);
+
+ /* Element identifier */
+ proto_tree_add_item(ie_tree, hf_rsl_ie_id, tvb, offset, 1, FALSE);
+ offset++;
+ /* Fixed Length */
+ proto_item_set_len(ti, 2);
+ proto_tree_add_item(ie_tree, hf_rsl_f4, tvb, offset, 1, FALSE);
+ offset++;
+
+ return offset;
+}
+
+static int
+dissect_rsl_ipac_ie_fc(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, gboolean is_mandatory)
+{
+ proto_item *ti;
+ proto_tree *ie_tree;
+ guint8 ie_id;
+
+ if (is_mandatory == FALSE) {
+ ie_id = tvb_get_guint8(tvb, offset);
+ if (ie_id != 0xfc)
+ return offset;
+ }
+
+ ti = proto_tree_add_text(tree, tvb, offset, 0, "Unknown 0xfc IE");
+ ie_tree = proto_item_add_subtree(ti, ett_ie_fc);
+
+ /* Element identifier */
+ proto_tree_add_item(ie_tree, hf_rsl_ie_id, tvb, offset, 1, FALSE);
+ offset++;
+ /* Fixed Length */
+ proto_item_set_len(ti, 2);
+ proto_tree_add_item(ie_tree, hf_rsl_fc, tvb, offset, 1, FALSE);
+ offset++;
+
+ return offset;
+}
+
+static int
+dissct_rsl_ipaccess_msg(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
+{
+ guint8 msg_type;
+
+ msg_type = tvb_get_guint8(tvb, offset)&0x7f;
+ offset++;
+
+ switch (msg_type) {
+ case RSL_MSG_TYPE_IPAC_BIND:
+ /* Channel number 9.3.1 M TV 2 */
+ offset = dissect_rsl_ie_ch_no(tvb, pinfo, tree, offset, TRUE);
+ break;
+ case RSL_MSG_TYPE_IPAC_BIND_ACK:
+ /* Channel number 9.3.1 M TV 2 */
+ offset = dissect_rsl_ie_ch_no(tvb, pinfo, tree, offset, TRUE);
+ offset = dissect_rsl_ipac_ie_f8(tvb, pinfo, tree, offset, TRUE);
+ offset = dissect_rsl_ipac_ie_local_port(tvb, pinfo, tree, offset, TRUE);
+ offset = dissect_rsl_ipac_ie_local_ip(tvb, pinfo, tree, offset, TRUE);
+ offset = dissect_rsl_ipac_ie_fc(tvb, pinfo, tree, offset, TRUE);
+ break;
+ case RSL_MSG_TYPE_IPAC_BIND_NACK:
+ /* Channel number 9.3.1 M TV 2 */
+ offset = dissect_rsl_ie_ch_no(tvb, pinfo, tree, offset, TRUE);
+ break;
+ case RSL_MSG_TYPE_IPAC_CONNECT:
+ /* Channel number 9.3.1 M TV 2 */
+ offset = dissect_rsl_ie_ch_no(tvb, pinfo, tree, offset, TRUE);
+ offset = dissect_rsl_ipac_ie_remote_ip(tvb, pinfo, tree, offset, TRUE);
+ offset = dissect_rsl_ipac_ie_remote_port(tvb, pinfo, tree, offset, TRUE);
+ offset = dissect_rsl_ipac_ie_f4(tvb, pinfo, tree, offset, TRUE);
+ offset = dissect_rsl_ipac_ie_fc(tvb, pinfo, tree, offset, TRUE);
+ break;
+ case RSL_MSG_TYPE_IPAC_CONNECT_ACK:
+ /* Channel number 9.3.1 M TV 2 */
+ offset = dissect_rsl_ie_ch_no(tvb, pinfo, tree, offset, TRUE);
+ offset = dissect_rsl_ipac_ie_f8(tvb, pinfo, tree, offset, TRUE);
+ break;
+ case RSL_MSG_TYPE_IPAC_CONNECT_NACK:
+ /* Channel number 9.3.1 M TV 2 */
+ offset = dissect_rsl_ie_ch_no(tvb, pinfo, tree, offset, TRUE);
+ break;
+ case RSL_MSG_TYPE_IPAC_DISC_IND:
+ /* Channel number 9.3.1 M TV 2 */
+ offset = dissect_rsl_ie_ch_no(tvb, pinfo, tree, offset, TRUE);
+ offset = dissect_rsl_ipac_ie_f8(tvb, pinfo, tree, offset, TRUE);
+ offset = dissect_rsl_ipac_ie_f6(tvb, pinfo, tree, offset, TRUE);
+ /* Cause 9.3.26 M TLV >=3 */
+ offset = dissect_rsl_ie_cause(tvb, pinfo, tree, offset, TRUE);
+ break;
+ }
+
+ return offset;
+}
+
static int
dissct_rsl_msg(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
{
- guint8 msg_type;
+ guint8 msg_disc, msg_type;
+ msg_disc = tvb_get_guint8(tvb, offset++) >> 1;
msg_type = tvb_get_guint8(tvb,offset)&0x7f;
proto_tree_add_item(tree, hf_rsl_msg_type, tvb, offset, 1, FALSE);
+
+ if (msg_disc == RSL_MSGDISC_IPACCESS) {
+ offset = dissct_rsl_ipaccess_msg(tvb, pinfo, tree, offset);
+ return offset;
+ }
offset++;
switch (msg_type){
@@ -3517,7 +3856,6 @@
/* 9.1 Message discriminator */
proto_tree_add_item(rsl_tree, hf_rsl_msg_dsc, tvb, offset, 1, FALSE);
proto_tree_add_item(rsl_tree, hf_rsl_T_bit, tvb, offset, 1, FALSE);
- offset++;
offset = dissct_rsl_msg(tvb, pinfo, rsl_tree, offset);
@@ -3883,6 +4221,46 @@
FT_UINT8, BASE_DEC, VALS(rsl_emlpp_prio_vals), 0x03,
"eMLPP Priority", HFILL }
},
+ { &hf_rsl_f4,
+ { "unknown F4 IE", "rsl.ipacc.f4",
+ FT_UINT8, BASE_DEC, NULL, 0x0,
+ "unknown F4 IE", HFILL }
+ },
+ { &hf_rsl_f6,
+ { "unknown F6 IE", "rsl.ipacc.f6",
+ FT_BYTES, BASE_HEX, NULL, 0x0,
+ "unknown F6 IE", HFILL }
+ },
+ { &hf_rsl_f8,
+ { "unknown F8 IE", "rsl.ipacc.f8",
+ FT_UINT16, BASE_DEC, NULL, 0x0,
+ "unknown F8 IE", HFILL }
+ },
+ { &hf_rsl_fc,
+ { "unknown FC IE", "rsl.ipacc.fc",
+ FT_UINT8, BASE_DEC, NULL, 0x0,
+ "unknown FC IE", HFILL }
+ },
+ { &hf_rsl_local_port,
+ { "ip.access Local RTP Port", "rsl.ipacc.local_port",
+ FT_UINT16, BASE_DEC, NULL, 0x0,
+ "ip.access Local RTP Port", HFILL },
+ },
+ { &hf_rsl_remote_port,
+ { "ip.access Remote RTP Port", "rsl.ipacc.remote_port",
+ FT_UINT16, BASE_DEC, NULL, 0x0,
+ "ip.access Remote RTP Port", HFILL },
+ },
+ { &hf_rsl_local_ip,
+ { "ip.access Local IP Address", "rsl.ipacc.local_ip",
+ FT_IPv4, BASE_NONE, NULL, 0x0,
+ "ip.access Local IP Address", HFILL },
+ },
+ { &hf_rsl_remote_ip,
+ { "ip.access Remote IP Address", "rsl.ipacc.remote_ip",
+ FT_IPv4, BASE_NONE, NULL, 0x0,
+ "ip.access Remote IP Address", HFILL },
+ },
};
static gint *ett[] = {
&ett_rsl,
@@ -3941,6 +4319,14 @@
&ett_ie_meas_res_no,
&ett_ie_message_id,
&ett_ie_sys_info_type,
+ &ett_ie_f4,
+ &ett_ie_f6,
+ &ett_ie_f8,
+ &ett_ie_remote_ip,
+ &ett_ie_remote_port,
+ &ett_ie_local_port,
+ &ett_ie_local_ip,
+ &ett_ie_fc,
};
/* Register the protocol name and description */
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