diff options
Diffstat (limited to 'epan/dissectors/packet-text-media.c')
| -rw-r--r-- | epan/dissectors/packet-text-media.c | 164 |
1 files changed, 164 insertions, 0 deletions
diff --git a/epan/dissectors/packet-text-media.c b/epan/dissectors/packet-text-media.c new file mode 100644 index 0000000000..7e4d9516bf --- /dev/null +++ b/epan/dissectors/packet-text-media.c @@ -0,0 +1,164 @@ +/* packet-text-media.c + * Routines for text-based media dissection. + * + * NOTE - The media type is either found in pinfo->match_string + * or in pinfo->private_data. + * + * (C) Olivier Biot, 2004. + * + * $Id$ + * + * Refer to the AUTHORS file or the AUTHORS section in the man page + * for contacting the author(s) of this file. + * + * 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. + */ + +/* Edit this file with 4-space tabs */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include <string.h> +#include <ctype.h> + +#include <glib.h> +#include <epan/packet.h> +#include <epan/strutil.h> + + +/* + * Media dissector for line-based text media like text/plain, message/http. + * + * TODO - character set and chunked transfer-coding + */ + +/* Filterable header fields */ +static gint proto_text_lines = -1; + +/* Subtrees */ +static gint ett_text_lines = -1; + +/* Dissector handles */ +static dissector_handle_t text_lines_handle; + +static void +dissect_text_lines(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree) +{ + proto_tree *subtree; + proto_item *ti; + gint offset = 0, next_offset; + gint len; + const char *data_name; + + data_name = pinfo->match_string; + if (! (data_name && data_name[0])) { + /* + * No information from "match_string" + */ + data_name = (char *)(pinfo->private_data); + if (! (data_name && data_name[0])) { + /* + * No information from "private_data" + */ + data_name = NULL; + } + } + + if (data_name && check_col(pinfo->cinfo, COL_INFO)) + col_append_sep_fstr(pinfo->cinfo, COL_INFO, " ", "(%s)", + data_name); + + if (tree) { + ti = proto_tree_add_item(tree, proto_text_lines, + tvb, 0, -1, FALSE); + if (data_name) + proto_item_append_text(ti, ": %s", data_name); + subtree = proto_item_add_subtree(ti, ett_text_lines); + /* Read the media line by line */ + while (tvb_reported_length_remaining(tvb, offset) != 0) { + /* + * XXX - we need to be passed the parameters + * of the content type via "pinfo->private_data", + * so that we know the character set. We'd + * have to handle that character set, which + * might be a multibyte character set such + * as "iso-10646-ucs-2", or might require other + * special processing. + */ + len = tvb_find_line_end(tvb, offset, + tvb_ensure_length_remaining(tvb, offset), + &next_offset, FALSE); + if (len == -1) + break; + proto_tree_add_text(subtree, tvb, offset, next_offset - offset, + "%s", tvb_format_text(tvb, offset, len)); + offset = next_offset; + } + } +} + +void +proto_register_text_lines(void) +{ + static gint *ett[] = { + &ett_text_lines, + }; + + proto_register_subtree_array(ett, array_length(ett)); + + proto_text_lines = proto_register_protocol( + "Line-based text data", /* Long name */ + "Line-based text data", /* Short name */ + "data-text-lines"); /* Filter name */ + register_dissector("data-text-lines", dissect_text_lines, proto_text_lines); +} + +void +proto_reg_handoff_text_lines(void) +{ + text_lines_handle = create_dissector_handle( + dissect_text_lines, proto_text_lines); + + dissector_add_string("media_type", "text/plain", text_lines_handle); + /* W3C line-based textual media */ + dissector_add_string("media_type", "text/html", text_lines_handle); + dissector_add_string("media_type", "text/xml", text_lines_handle); + dissector_add_string("media_type", "text/xml-external-parsed-entity", text_lines_handle); + dissector_add_string("media_type", "text/css", text_lines_handle); + dissector_add_string("media_type", "application/xml", text_lines_handle); + dissector_add_string("media_type", "application/xml-external-parsed-entity", text_lines_handle); + dissector_add_string("media_type", "application/xml-dtd", text_lines_handle); + dissector_add_string("media_type", "application/x-javascript", text_lines_handle); + dissector_add_string("media_type", "application/x-www-form-urlencoded", text_lines_handle); + dissector_add_string("media_type", "application/x-ns-proxy-autoconfig", text_lines_handle); + /* WAP and OMA line-based textual media */ + dissector_add_string("media_type", "text/vnd.wap.wml", text_lines_handle); + dissector_add_string("media_type", "text/vnd.wap.si", text_lines_handle); + dissector_add_string("media_type", "text/vnd.wap.sl", text_lines_handle); + dissector_add_string("media_type", "text/vnd.wap.co", text_lines_handle); + dissector_add_string("media_type", "text/vnd.wap.emn", text_lines_handle); + dissector_add_string("media_type", "application/vnd.wv.csp+xml", text_lines_handle); + /* Other */ + dissector_add_string("media_type", "text/vnd.sun.j2me.app-descriptor", text_lines_handle); + dissector_add_string("media_type", "application/smil", text_lines_handle); + dissector_add_string("media_type", "application/vnd.poc.refer-to", text_lines_handle); + dissector_add_string("media_type", "application/cpim-pidf+xml", text_lines_handle); +} |