diff options
Diffstat (limited to 'src/isi-gss.c')
| -rw-r--r-- | src/isi-gss.c | 142 |
1 files changed, 142 insertions, 0 deletions
diff --git a/src/isi-gss.c b/src/isi-gss.c new file mode 100644 index 0000000..e3d2a1e --- /dev/null +++ b/src/isi-gss.c @@ -0,0 +1,142 @@ +/* isi-ss.c + * Dissector for ISI's General Stack Server resource + * Copyright 2010, Sebastian Reichel <sre@ring0.de> + * Copyright 2010, Tyson Key <tyson.key@gmail.com> + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif + +#include <glib.h> +#include <epan/prefs.h> +#include <epan/packet.h> + +#include "packet-isi.h" +#include "isi-gss.h" + +static const value_string isi_gss_message_id[] = { + {0x00, "GSS_CS_SERVICE_REQ"}, + {0x01, "GSS_CS_SERVICE_RESP"}, + {0x02, "GSS_CS_SERVICE_FAIL_RESP"}, +}; + +static const value_string isi_gss_subblock[] = { + {0x0B, "GSS_RAT_INFO"}, +}; + +static const value_string isi_gss_operation[] = { + {0x0E, "GSS_SELECTED_RAT_WRITE"}, + {0x9C, "GSS_SELECTED_RAT_READ"}, +}; + +static dissector_handle_t isi_gss_handle; +static void dissect_isi_gss(tvbuff_t *tvb, packet_info *pinfo, proto_item *tree); + +static guint32 hf_isi_gss_message_id = -1; +static guint32 hf_isi_gss_subblock = -1; +static guint32 hf_isi_gss_operation = -1; +static guint32 hf_isi_gss_subblock_count = -1; + +void proto_reg_handoff_isi_gss(void) { + static gboolean initialized=FALSE; + + if (!initialized) { + isi_gss_handle = create_dissector_handle(dissect_isi_gss, proto_isi); + dissector_add("isi.resource", 0x32, isi_gss_handle); + } +} + +void proto_register_isi_gss(void) { + static hf_register_info hf[] = { + { &hf_isi_gss_message_id, + { "Message ID", "isi.gss.msg_id", FT_UINT8, BASE_HEX, isi_gss_message_id, 0x0, "Message ID", HFILL }}, + { &hf_isi_gss_subblock, + { "Subblock", "isi.gss.subblock", FT_UINT8, BASE_HEX, isi_gss_subblock, 0x0, "Subblock", HFILL }}, + { &hf_isi_gss_operation, + { "Operation", "isi.gss.operation", FT_UINT8, BASE_HEX, isi_gss_operation, 0x0, "Operation", HFILL }}, + { &hf_isi_gss_subblock_count, + { "Subblock Count", "isi.gss.subblock_count", FT_UINT8, BASE_DEC, NULL, 0x0, "Subblock Count", HFILL }}, + }; + + proto_register_field_array(proto_isi, hf, array_length(hf)); + register_dissector("isi.gss", dissect_isi_gss, proto_isi); +} + +static void dissect_isi_gss(tvbuff_t *tvb, packet_info *pinfo, proto_item *isitree) { + proto_item *item = NULL; + proto_tree *tree = NULL; + guint8 cmd, code; + + if(isitree) { + item = proto_tree_add_text(isitree, tvb, 0, -1, "Payload"); + tree = proto_item_add_subtree(item, ett_isi_msg); + + proto_tree_add_item(tree, hf_isi_gss_message_id, tvb, 0, 1, FALSE); + cmd = tvb_get_guint8(tvb, 0); + + switch(cmd) { + case 0x00: /* GSS_CS_SERVICE_REQ */ + proto_tree_add_item(tree, hf_isi_gss_operation, tvb, 1, 1, FALSE); + code = tvb_get_guint8(tvb, 1); + switch(code) { + case 0x0E: + col_set_str(pinfo->cinfo, COL_INFO, "Service Request: Radio Access Type Write"); + break; + + case 0x9C: + proto_tree_add_item(tree, hf_isi_gss_subblock_count, tvb, 2, 1, FALSE); + col_set_str(pinfo->cinfo, COL_INFO, "Service Request: Radio Access Type Read"); + break; + + default: + col_set_str(pinfo->cinfo, COL_INFO, "Service Request"); + break; + } + break; + + case 0x01: /* GSS_CS_SERVICE_RESP */ + //proto_tree_add_item(tree, hf_isi_gss_service_type, tvb, 1, 1, FALSE); + code = tvb_get_guint8(tvb, 1); + switch(code) { + //case 0x2F: + // col_set_str(pinfo->cinfo, COL_INFO, "Network Information Request: Read Home PLMN"); + // break; + default: + col_set_str(pinfo->cinfo, COL_INFO, "Service Response"); + break; + } + break; + + case 0x02: /* GSS_CS_SERVICE_FAIL_RESP */ + //proto_tree_add_item(tree, hf_isi_gss_service_type, tvb, 1, 1, FALSE); + code = tvb_get_guint8(tvb, 1); + switch(code) { + //case 0x2F: + // col_set_str(pinfo->cinfo, COL_INFO, "Network Information Request: Read Home PLMN"); + // break; + default: + col_set_str(pinfo->cinfo, COL_INFO, "Service Failed Response"); + break; + } + break; + + + default: + col_set_str(pinfo->cinfo, COL_INFO, "Unknown type"); + break; + } + } +} |