diff options
author | gram <gram@f5534014-38df-0310-8fa8-9805f1628bb7> | 2004-07-18 18:06:47 +0000 |
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committer | gram <gram@f5534014-38df-0310-8fa8-9805f1628bb7> | 2004-07-18 18:06:47 +0000 |
commit | 35a6e092c3153cc7fbd1337c2230d596b0f7abcb (patch) | |
tree | 4eff24a2e16c8963e497e1fc575f35e6af59bd26 /epan/dissectors/packet-clip.c | |
parent | 8dd1ee5ef22a787f4035d68e8e2ec8371fd23266 (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.
git-svn-id: http://anonsvn.wireshark.org/wireshark/trunk@11410 f5534014-38df-0310-8fa8-9805f1628bb7
Diffstat (limited to 'epan/dissectors/packet-clip.c')
-rw-r--r-- | epan/dissectors/packet-clip.c | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/epan/dissectors/packet-clip.c b/epan/dissectors/packet-clip.c new file mode 100644 index 0000000000..cae6dd1982 --- /dev/null +++ b/epan/dissectors/packet-clip.c @@ -0,0 +1,120 @@ +/* packet-clip.c + * Routines for clip packet disassembly + * + * $Id$ + * + * Ethereal - Network traffic analyzer + * By Gerald Combs <gerald@ethereal.com> + * + * This file created by Thierry Andry <Thierry.Andry@advalvas.be> + * from nearly-the-same packet-raw.c created by Mike Hall <mlh@io.com> + * Copyright 1999 + * + * 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 <glib.h> +#include <epan/packet.h> +#include "packet-clip.h" +#include "packet-ip.h" + +static gint ett_clip = -1; + +static dissector_handle_t ip_handle; + +void +capture_clip( const guchar *pd, int len, packet_counts *ld ) { + + capture_ip(pd, 0, len, ld); +} + +static void +dissect_clip(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree) +{ + proto_tree *fh_tree; + proto_item *ti; + + pinfo->current_proto = "CLIP"; + + /* load the top pane info. This should be overwritten by + the next protocol in the stack */ + if(check_col(pinfo->cinfo, COL_RES_DL_SRC)) + col_set_str(pinfo->cinfo, COL_RES_DL_SRC, "N/A" ); + if(check_col(pinfo->cinfo, COL_RES_DL_DST)) + col_set_str(pinfo->cinfo, COL_RES_DL_DST, "N/A" ); + if(check_col(pinfo->cinfo, COL_PROTOCOL)) + col_set_str(pinfo->cinfo, COL_PROTOCOL, "CLIP" ); + if(check_col(pinfo->cinfo, COL_INFO)) + col_set_str(pinfo->cinfo, COL_INFO, "Classical IP frame" ); + + /* populate a tree in the second pane with the status of the link + layer (ie none) + + XXX - the Linux Classical IP code supports both LLC Encapsulation, + which puts an LLC header and possibly a SNAP header in front of + the network-layer header, and VC Based Multiplexing, which puts + no headers in front of the network-layer header. + + The ATM on Linux code includes a patch to "tcpdump" + that compares the first few bytes of the packet with the + LLC header that Classical IP frames may have and, if there's + a SNAP LLC header at the beginning of the packet, it gets + the packet type from that header and uses that, otherwise + it treats the packet as being raw IP with no link-level + header, in order to handle both of those. + + This code, however, won't handle LLC Encapsulation. We've + not yet seen a capture taken on a machine using LLC Encapsulation, + however. If we see one, we can modify the code. + + A future version of libpcap, however, will probably use DLT_LINUX_SLL + for both of those cases, to avoid the headache of having to + generate capture-filter code to handle both of those cases. */ + if(tree) { + ti = proto_tree_add_text(tree, tvb, 0, 0, "Classical IP frame" ); + fh_tree = proto_item_add_subtree(ti, ett_clip); + proto_tree_add_text(fh_tree, tvb, 0, 0, "No link information available"); + } + call_dissector(ip_handle, tvb, pinfo, tree); +} + +void +proto_register_clip(void) +{ + static gint *ett[] = { + &ett_clip, + }; + + proto_register_subtree_array(ett, array_length(ett)); +} + +void +proto_reg_handoff_clip(void) +{ + dissector_handle_t clip_handle; + + /* + * Get a handle for the IP dissector. + */ + ip_handle = find_dissector("ip"); + + clip_handle = create_dissector_handle(dissect_clip, -1); + /* XXX - no protocol, can't be disabled */ + dissector_add("wtap_encap", WTAP_ENCAP_LINUX_ATM_CLIP, clip_handle); +} |