diff options
author | Gilbert Ramirez <gram@alumni.rice.edu> | 2004-07-18 18:06:47 +0000 |
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committer | Gilbert Ramirez <gram@alumni.rice.edu> | 2004-07-18 18:06:47 +0000 |
commit | 669db206cb1f270046ad400fff7655e20c63e723 (patch) | |
tree | 4eff24a2e16c8963e497e1fc575f35e6af59bd26 /epan/dissectors/packet-h1.c | |
parent | ae46c27a38700af669ef907491081f09df6f6b2c (diff) |
Move dissectors to epan/dissectors directory.
Also move ncp222.py, x11-fields, process-x11-fields.pl,
make-reg-dotc, and make-reg-dotc.py.
Adjust #include lines in files that include packet-*.h
files.
svn path=/trunk/; revision=11410
Diffstat (limited to 'epan/dissectors/packet-h1.c')
-rw-r--r-- | epan/dissectors/packet-h1.c | 320 |
1 files changed, 320 insertions, 0 deletions
diff --git a/epan/dissectors/packet-h1.c b/epan/dissectors/packet-h1.c new file mode 100644 index 0000000000..245dff7c16 --- /dev/null +++ b/epan/dissectors/packet-h1.c @@ -0,0 +1,320 @@ +/* packet-h1.c + * Routines for Sinec H1 packet disassembly + * Gerrit Gehnen <G.Gehnen@atrie.de> + * + * $Id$ + * + * 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. + */ + +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif + +#include <string.h> + +#include <glib.h> +#include <epan/packet.h> + +static int proto_h1 = -1; +static int hf_h1_header = -1; +static int hf_h1_len = -1; +static int hf_h1_opfield = -1; +static int hf_h1_oplen = -1; +static int hf_h1_opcode = -1; +static int hf_h1_requestblock = -1; +static int hf_h1_requestlen = -1; +static int hf_h1_dbnr = -1; +static int hf_h1_dwnr = -1; +static int hf_h1_dlen = -1; +static int hf_h1_org = -1; +static int hf_h1_response = -1; +static int hf_h1_response_len = -1; +static int hf_h1_response_value = -1; +static int hf_h1_empty_len = -1; +static int hf_h1_empty = -1; + +static dissector_handle_t data_handle; + +#define EMPTY_BLOCK 0xFF +#define OPCODE_BLOCK 0x01 +#define REQUEST_BLOCK 0x03 +#define RESPONSE_BLOCK 0x0F + +static const value_string opcode_vals[] = { + {3, "Write Request"}, + {4, "Write Response"}, + {5, "Read Request"}, + {6, "Read Response"}, + {0, NULL} +}; + +static const value_string org_vals[] = { + {0x01, "DB"}, + {0x02, "MB"}, + {0x03, "EB"}, + {0x04, "AB"}, + {0x05, "PB"}, + {0x06, "ZB"}, + {0x07, "TB"}, + {0x08, "BS"}, + {0x09, "AS"}, + {0x0a, "DX"}, + {0x10, "DE"}, + {0x11, "QB"}, + {0, NULL} +}; + +static const value_string returncode_vals[] = { + {0x00, "No error"}, + {0x02, "Requested block does not exist"}, + {0x03, "Requested block too small"}, + {0xFF, "Error, reason unknown"}, + {0, NULL} +}; + +static gint ett_h1 = -1; +static gint ett_opcode = -1; +static gint ett_org = -1; +static gint ett_response = -1; +static gint ett_empty = -1; + +static gboolean dissect_h1(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree) +{ + tvbuff_t *next_tvb; + + proto_tree *h1_tree = NULL; + + proto_item *ti; + proto_tree *opcode_tree = NULL; + proto_tree *org_tree = NULL; + proto_tree *response_tree = NULL; + proto_tree *empty_tree = NULL; + + unsigned int position = 3; + unsigned int offset=0; + + if (tvb_length_remaining(tvb, 0) < 2) + { + /* Not enough data captured to hold the "S5" header; don't try + to interpret it as H1. */ + return FALSE; + } + + if (!(tvb_get_guint8(tvb,offset) == 'S' && tvb_get_guint8(tvb,offset+1) == '5')) + { + return FALSE; + } + + if (check_col (pinfo->cinfo, COL_PROTOCOL)) + col_set_str (pinfo->cinfo, COL_PROTOCOL, "H1"); + if (check_col (pinfo->cinfo, COL_INFO)) + col_add_str (pinfo->cinfo, COL_INFO, "S5: "); + if (tree) + { + ti = proto_tree_add_item (tree, proto_h1, tvb, offset, 16, FALSE); + h1_tree = proto_item_add_subtree (ti, ett_h1); + proto_tree_add_uint (h1_tree, hf_h1_header, tvb, offset, 2, + tvb_get_ntohs(tvb,offset)); + proto_tree_add_uint (h1_tree, hf_h1_len, tvb, offset + 2, 1, + tvb_get_guint8(tvb,offset+2)); + } + + while (position < tvb_get_guint8(tvb,offset+2)) + { + switch (tvb_get_guint8(tvb,offset + position)) + { + case OPCODE_BLOCK: + if (h1_tree) + { + ti = proto_tree_add_uint (h1_tree, hf_h1_opfield, tvb, + offset + position, + tvb_get_guint8(tvb,offset+position+1), + tvb_get_guint8(tvb,offset+position)); + opcode_tree = proto_item_add_subtree (ti, ett_opcode); + proto_tree_add_uint (opcode_tree, hf_h1_oplen, tvb, + offset + position + 1, 1, + tvb_get_guint8(tvb,offset + position + 1)); + proto_tree_add_uint (opcode_tree, hf_h1_opcode, tvb, + offset + position + 2, 1, + tvb_get_guint8(tvb,offset + position + 2)); + } + if (check_col (pinfo->cinfo, COL_INFO)) + { + col_append_str (pinfo->cinfo, COL_INFO, + val_to_str (tvb_get_guint8(tvb,offset + position + 2), + opcode_vals,"Unknown Opcode (0x%2.2x)")); + } + break; + case REQUEST_BLOCK: + if (h1_tree) + { + ti = proto_tree_add_uint (h1_tree, hf_h1_requestblock, tvb, + offset + position, + tvb_get_guint8(tvb,offset + position + 1), + tvb_get_guint8(tvb,offset + position)); + org_tree = proto_item_add_subtree (ti, ett_org); + proto_tree_add_uint (org_tree, hf_h1_requestlen, tvb, + offset + position + 1, 1, + tvb_get_guint8(tvb,offset + position+1)); + proto_tree_add_uint (org_tree, hf_h1_org, tvb, + offset + position + 2, 1, + tvb_get_guint8(tvb,offset + position+2)); + proto_tree_add_uint (org_tree, hf_h1_dbnr, tvb, + offset + position + 3, 1, + tvb_get_guint8(tvb,offset + position+3)); + proto_tree_add_uint (org_tree, hf_h1_dwnr, tvb, + offset + position + 4, 2, + tvb_get_ntohs(tvb,offset+position+4)); + proto_tree_add_int (org_tree, hf_h1_dlen, tvb, + offset + position + 6, 2, + tvb_get_ntohs(tvb,offset+position+6)); + } + if (check_col (pinfo->cinfo, COL_INFO)) + { + col_append_fstr (pinfo->cinfo, COL_INFO, " %s %d", + val_to_str (tvb_get_guint8(tvb,offset + position + 2), + org_vals,"Unknown Type (0x%2.2x)"), + tvb_get_guint8(tvb,offset + position + 3)); + col_append_fstr (pinfo->cinfo, COL_INFO, " DW %d", + tvb_get_ntohs(tvb,offset+position+4)); + col_append_fstr (pinfo->cinfo, COL_INFO, " Count %d", + tvb_get_ntohs(tvb,offset+position+6)); + } + break; + case RESPONSE_BLOCK: + if (h1_tree) + { + ti = proto_tree_add_uint (h1_tree, hf_h1_response, tvb, + offset + position, + tvb_get_guint8(tvb,offset + position + 1), + tvb_get_guint8(tvb,offset + position)); + response_tree = proto_item_add_subtree (ti, ett_response); + proto_tree_add_uint (response_tree, hf_h1_response_len, tvb, + offset + position + 1, 1, + tvb_get_guint8(tvb,offset + position+1)); + proto_tree_add_uint (response_tree, hf_h1_response_value, tvb, + offset + position + 2, 1, + tvb_get_guint8(tvb,offset + position+2)); + } + if (check_col (pinfo->cinfo, COL_INFO)) + { + col_append_fstr (pinfo->cinfo, COL_INFO, " %s", + val_to_str (tvb_get_guint8(tvb,offset + position + 2), + returncode_vals,"Unknown Returcode (0x%2.2x")); + } + break; + case EMPTY_BLOCK: + if (h1_tree) + { + ti = proto_tree_add_uint (h1_tree, hf_h1_empty, tvb, + offset + position, + tvb_get_guint8(tvb,offset + position + 1), + tvb_get_guint8(tvb,offset + position)); + empty_tree = proto_item_add_subtree (ti, ett_empty); + + proto_tree_add_uint (empty_tree, hf_h1_empty_len, tvb, + offset + position + 1, 1, + tvb_get_guint8(tvb,offset + position+1)); + } + break; + default: + /* This is not a valid telegram. So cancel dissection + and try the next dissector */ + return FALSE; + break; + } + position += tvb_get_guint8(tvb,offset + position + 1); /* Goto next section */ + } /* ..while */ + next_tvb = tvb_new_subset(tvb, offset+tvb_get_guint8(tvb,offset+2), -1, -1); + call_dissector(data_handle,next_tvb, pinfo, tree); + + return TRUE; +} + + +void +proto_register_h1 (void) +{ + static hf_register_info hf[] = { + {&hf_h1_header, + {"H1-Header", "h1.header", FT_UINT16, BASE_HEX, NULL, 0x0, + "", HFILL }}, + {&hf_h1_len, + {"Length indicator", "h1.len", FT_UINT16, BASE_DEC, NULL, 0x0, + "", HFILL }}, + {&hf_h1_opfield, + {"Operation identifier", "h1.opfield", FT_UINT8, BASE_HEX, NULL, 0x0, + "", HFILL }}, + {&hf_h1_oplen, + {"Operation length", "h1.oplen", FT_UINT8, BASE_HEX, NULL, 0x0, "", HFILL }}, + {&hf_h1_opcode, + {"Opcode", "h1.opcode", FT_UINT8, BASE_HEX, VALS (opcode_vals), 0x0, + "", HFILL }}, + {&hf_h1_requestblock, + {"Request identifier", "h1.request", FT_UINT8, BASE_HEX, NULL, 0x0, + "", HFILL }}, + {&hf_h1_requestlen, + {"Request length", "h1.reqlen", FT_UINT8, BASE_HEX, NULL, 0x0, + "", HFILL }}, + {&hf_h1_org, + {"Memory type", "h1.org", FT_UINT8, BASE_HEX, VALS (org_vals), 0x0, + "", HFILL }}, + {&hf_h1_dbnr, + {"Memory block number", "h1.dbnr", FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL }}, + {&hf_h1_dwnr, + {"Address within memory block", "h1.dwnr", FT_UINT16, BASE_DEC, NULL, 0x0, + "", HFILL }}, + {&hf_h1_dlen, + {"Length in words", "h1.dlen", FT_INT16, BASE_DEC, NULL, 0x0, "", HFILL }}, + {&hf_h1_response, + {"Response identifier", "h1.response", FT_UINT8, BASE_HEX, NULL, 0x0, "", HFILL }}, + {&hf_h1_response_len, + {"Response length", "h1.reslen", FT_UINT8, BASE_DEC, NULL, 0x0, + "", HFILL }}, + {&hf_h1_response_value, + {"Response value", "h1.resvalue", FT_UINT8, BASE_DEC, + VALS (returncode_vals), 0x0, "", HFILL }}, + {&hf_h1_empty, + {"Empty field", "h1.empty", FT_UINT8, BASE_HEX, NULL, 0x0, + "", HFILL }}, + {&hf_h1_empty_len, + {"Empty field length", "h1.empty_len", FT_UINT8, BASE_DEC, NULL, 0x0, + "", HFILL }} + }; + + static gint *ett[] = { + &ett_h1, + &ett_opcode, + &ett_response, + &ett_org, + &ett_empty + }; + + proto_h1 = proto_register_protocol ("Sinec H1 Protocol", "H1", "h1"); + proto_register_field_array (proto_h1, hf, array_length (hf)); + proto_register_subtree_array (ett, array_length (ett)); +} + +void +proto_reg_handoff_h1(void) +{ + heur_dissector_add("cotp_is", dissect_h1, proto_h1); + data_handle = find_dissector("data"); +} |