forked from osmocom/wireshark
![Anders Broman](/assets/img/avatar_default.png)
optimizations patch http://wiki.wireshark.org/Development/Optimization 'patch.29854.diff.gz" - ei->protocol is a constant. - Don't setup expert tap data if there's no tap. svn path=/trunk/; revision=29873
221 lines
5.5 KiB
C
221 lines
5.5 KiB
C
/* expert.c
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* Collecting Expert information.
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*
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* Implemented as a tap named "expert".
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*
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* $Id$
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 1998 Gerald Combs
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include "packet.h"
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#include "expert.h"
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#include "emem.h"
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#include "tap.h"
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static int expert_tap = -1;
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static int proto_expert = -1;
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static int highest_severity = 0;
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static int ett_expert = -1;
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static int ett_subexpert = -1;
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static int hf_expert_msg = -1;
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static int hf_expert_group = -1;
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static int hf_expert_severity = -1;
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const value_string expert_group_vals[] = {
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{ PI_CHECKSUM, "Checksum" },
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{ PI_SEQUENCE, "Sequence" },
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{ PI_RESPONSE_CODE, "Response" },
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{ PI_REQUEST_CODE, "Request" },
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{ PI_UNDECODED, "Undecoded" },
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{ PI_REASSEMBLE, "Reassemble" },
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{ PI_MALFORMED, "Malformed" },
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{ PI_DEBUG, "Debug" },
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/* { PI_SECURITY, "Security" },*/
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{ 0, NULL }
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};
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const value_string expert_severity_vals[] = {
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{ PI_ERROR, "Error" },
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{ PI_WARN, "Warn" },
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{ PI_NOTE, "Note" },
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{ PI_CHAT, "Chat" },
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{ 0, "Ok" },
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{ 0, NULL }
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};
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void
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expert_init(void)
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{
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static hf_register_info hf[] = {
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{ &hf_expert_msg,
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{ "Message", "expert.message", FT_STRING, BASE_NONE, NULL, 0, "Wireshark expert information", HFILL }
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},
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{ &hf_expert_group,
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{ "Group", "expert.group", FT_UINT32, BASE_NONE, VALS(expert_group_vals), 0, "Wireshark expert group", HFILL }
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},
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{ &hf_expert_severity,
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{ "Severity level", "expert.severity", FT_UINT32, BASE_NONE, VALS(expert_severity_vals), 0, "Wireshark expert severity level", HFILL }
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}
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};
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static gint *ett[] = {
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&ett_expert,
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&ett_subexpert
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};
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if(expert_tap == -1) {
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expert_tap = register_tap("expert");
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}
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if (proto_expert == -1) {
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proto_expert = proto_register_protocol("Expert Info", "Expert", "expert");
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proto_register_field_array(proto_expert, hf, array_length(hf));
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proto_register_subtree_array(ett, array_length(ett));
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proto_set_cant_toggle(proto_expert);
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}
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highest_severity = 0;
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}
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void
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expert_cleanup(void)
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{
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/* memory cleanup will be done by se_... */
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}
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int
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expert_get_highest_severity(void)
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{
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return highest_severity;
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}
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/* set's the PI_ flags to a protocol item
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* (and it's parent items till the toplevel) */
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static void
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expert_set_item_flags(proto_item *pi, int group, int severity)
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{
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if(proto_item_set_expert_flags(pi, group, severity)) {
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/* propagate till toplevel item */
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pi = proto_item_get_parent(pi);
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expert_set_item_flags(pi, group, severity);
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}
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}
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static proto_tree*
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expert_create_tree(proto_item *pi, int group, int severity, const char *msg)
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{
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proto_tree *tree;
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proto_item *ti;
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tree = proto_item_add_subtree(pi, ett_expert);
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ti = proto_tree_add_protocol_format(tree, proto_expert, NULL, 0, 0, "Expert Info (%s/%s): %s",
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val_to_str(severity, expert_severity_vals, "?%u?"),
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val_to_str(group, expert_group_vals, "?%u?"),
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msg);
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PROTO_ITEM_SET_GENERATED(ti);
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return proto_item_add_subtree(ti, ett_subexpert);
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}
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static void
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expert_set_info_vformat(
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packet_info *pinfo, proto_item *pi, int group, int severity, const char *format, va_list ap)
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{
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char formatted[300];
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int tap;
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expert_info_t *ei;
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proto_tree *tree;
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proto_item *ti;
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/* if this packet isn't loaded because of a read filter, don't output anything */
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if(pinfo == NULL || pinfo->fd->num == 0) {
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return;
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}
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if(severity > highest_severity) {
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highest_severity = severity;
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}
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if(pi != NULL && pi->finfo != NULL) {
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expert_set_item_flags(pi, group, severity);
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}
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if (check_col(pinfo->cinfo, COL_EXPERT))
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col_add_str(pinfo->cinfo, COL_EXPERT, val_to_str(severity, expert_severity_vals, "?%u?"));
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tap = have_tap_listener(expert_tap);
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/* XXX - use currently nonexistant se_vsnprintf instead */
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g_vsnprintf(formatted, sizeof(formatted), format, ap);
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tree = expert_create_tree(pi, group, severity, formatted);
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ti = proto_tree_add_string(tree, hf_expert_msg, NULL, 0, 0, formatted);
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PROTO_ITEM_SET_GENERATED(ti);
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ti = proto_tree_add_uint(tree, hf_expert_severity, NULL, 0, 0, severity);
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PROTO_ITEM_SET_GENERATED(ti);
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ti = proto_tree_add_uint(tree, hf_expert_group, NULL, 0, 0, group);
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PROTO_ITEM_SET_GENERATED(ti);
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if (!tap)
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return;
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ei = ep_alloc(sizeof(expert_info_t));
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ei->packet_num = pinfo->fd->num;
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ei->group = group;
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ei->severity = severity;
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ei->protocol = pinfo->current_proto; /* ep_strdup(pinfo->current_proto); it's a const */
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ei->summary = ep_strdup(formatted);
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ei->pitem = NULL;
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/* if we have a proto_item (not a faked item), set expert attributes to it */
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if(pi != NULL && PITEM_FINFO(pi) != NULL) {
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ei->pitem = pi;
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}
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tap_queue_packet(expert_tap, pinfo, ei);
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}
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void
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expert_add_info_format(
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packet_info *pinfo, proto_item *pi, int group, int severity, const char *format, ...)
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{
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va_list ap;
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va_start(ap, format);
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expert_set_info_vformat(pinfo, pi, group, severity, format, ap);
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va_end(ap);
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}
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