![Guy Harris](/assets/img/avatar_default.png)
corresponding to a named field, by matching stuff at a particular offset in the frame, don't treat a length of 1 byte specially - the syntax for a one-byte byte string is the same as for longer byte strings, with no leading "0x" allowed. Clean up white space. svn path=/trunk/; revision=3406
2959 lines
69 KiB
C
2959 lines
69 KiB
C
/* proto.c
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* Routines for protocol tree
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*
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* $Id: proto.c,v 1.27 2001/05/09 01:22:46 guy Exp $
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*
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* Ethereal - Network traffic analyzer
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* By Gerald Combs <gerald@zing.org>
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* Copyright 1998 Gerald Combs
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*
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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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#ifdef HAVE_SYS_TYPES_H
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# include <sys/types.h>
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#endif
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#include <stdio.h>
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#include <string.h>
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#include <glib.h>
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#ifdef NEED_SNPRINTF_H
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# include "snprintf.h"
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#endif
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#include "packet.h"
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#include "strutil.h"
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#include "resolv.h"
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#include "plugins.h"
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#include "ipv6-utils.h"
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#include "proto.h"
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#define cVALS(x) (const value_string*)(x)
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static gboolean
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proto_tree_free_node(GNode *node, gpointer data);
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static void fill_label_boolean(field_info *fi, gchar *label_str);
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static void fill_label_uint(field_info *fi, gchar *label_str);
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static void fill_label_enumerated_uint(field_info *fi, gchar *label_str);
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static void fill_label_enumerated_bitfield(field_info *fi, gchar *label_str);
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static void fill_label_numeric_bitfield(field_info *fi, gchar *label_str);
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static void fill_label_int(field_info *fi, gchar *label_str);
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static void fill_label_enumerated_int(field_info *fi, gchar *label_str);
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int hfinfo_bitwidth(header_field_info *hfinfo);
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static char* hfinfo_uint_vals_format(header_field_info *hfinfo);
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static char* hfinfo_uint_format(header_field_info *hfinfo);
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static char* hfinfo_int_vals_format(header_field_info *hfinfo);
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static char* hfinfo_int_format(header_field_info *hfinfo);
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static gboolean check_for_protocol_or_field_id(GNode *node, gpointer data);
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static proto_item*
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proto_tree_add_node(proto_tree *tree, field_info *fi);
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static field_info *
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alloc_field_info(int hfindex, tvbuff_t *tvb, gint start, gint length);
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static proto_item *
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proto_tree_add_pi(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start, gint length,
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field_info **pfi);
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static void
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proto_tree_set_representation(proto_item *pi, const char *format, va_list ap);
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static void
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proto_tree_set_protocol_tvb(field_info *fi, tvbuff_t *tvb);
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static void
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proto_tree_set_bytes(field_info *fi, const guint8* start_ptr, gint length);
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static void
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proto_tree_set_bytes_tvb(field_info *fi, tvbuff_t *tvb, gint offset, gint length);
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static void
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proto_tree_set_time(field_info *fi, struct timeval *value_ptr);
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static void
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proto_tree_set_string(field_info *fi, const char* value);
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static void
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proto_tree_set_string_tvb(field_info *fi, tvbuff_t *tvb, gint start, gint length);
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static void
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proto_tree_set_ether(field_info *fi, const guint8* value);
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static void
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proto_tree_set_ether_tvb(field_info *fi, tvbuff_t *tvb, gint start);
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static void
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proto_tree_set_ipxnet(field_info *fi, guint32 value);
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static void
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proto_tree_set_ipv4(field_info *fi, guint32 value);
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static void
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proto_tree_set_ipv6(field_info *fi, const guint8* value_ptr);
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static void
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proto_tree_set_ipv6_tvb(field_info *fi, tvbuff_t *tvb, gint start);
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static void
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proto_tree_set_boolean(field_info *fi, guint32 value);
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static void
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proto_tree_set_double(field_info *fi, double value);
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static void
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proto_tree_set_uint(field_info *fi, guint32 value);
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static void
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proto_tree_set_int(field_info *fi, gint32 value);
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static int proto_register_field_init(header_field_info *hfinfo, int parent);
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/* special-case header field used within proto.c */
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int hf_text_only = 1;
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/* Structure for information about a protocol */
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typedef struct {
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char *name; /* long description */
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char *short_name; /* short description */
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char *filter_name; /* name of this protocol in filters */
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int proto_id; /* field ID for this protocol */
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GList *fields; /* fields for this protocol */
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GList *last_field; /* pointer to end of list of fields */
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gboolean is_enabled; /* TRUE if protocol is enabled */
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gboolean can_disable; /* TRUE if protocol can be disabled */
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gpointer dissector;
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} protocol_t;
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/* List of all protocols */
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static GList *protocols;
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/* Contains information about protocols and header fields. Used when
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* dissectors register their data */
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static GMemChunk *gmc_hfinfo = NULL;
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/* Contains information about a field when a dissector calls
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* proto_tree_add_item. */
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static GMemChunk *gmc_field_info = NULL;
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/* String space for protocol and field items for the GUI */
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static GMemChunk *gmc_item_labels = NULL;
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/* List which stores protocols and fields that have been registered */
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static GPtrArray *gpa_hfinfo = NULL;
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/* Points to the first element of an array of Booleans, indexed by
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a subtree item type; that array element is TRUE if subtrees of
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an item of that type are to be expanded. */
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gboolean *tree_is_expanded;
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/* Number of elements in that array. */
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int num_tree_types;
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/* Is the parsing being done for a visible proto_tree or an invisible one?
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* By setting this correctly, the proto_tree creation is sped up by not
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* having to call vsnprintf and copy strings around.
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*/
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gboolean proto_tree_is_visible = FALSE;
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/* initialize data structures and register protocols and fields */
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void
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proto_init(const char *plugin_dir,void (register_all_protocols)(void),
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void (register_all_protocol_handoffs)(void))
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{
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static hf_register_info hf[] = {
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{ &hf_text_only,
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{ "", "", FT_NONE, BASE_NONE, NULL, 0x0,
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NULL }},
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};
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if (gmc_hfinfo)
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g_mem_chunk_destroy(gmc_hfinfo);
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if (gmc_field_info)
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g_mem_chunk_destroy(gmc_field_info);
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if (gmc_item_labels)
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g_mem_chunk_destroy(gmc_item_labels);
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if (gpa_hfinfo)
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g_ptr_array_free(gpa_hfinfo, FALSE);
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if (tree_is_expanded != NULL)
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g_free(tree_is_expanded);
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gmc_hfinfo = g_mem_chunk_new("gmc_hfinfo",
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sizeof(header_field_info), 50 * sizeof(header_field_info), G_ALLOC_ONLY);
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gmc_field_info = g_mem_chunk_new("gmc_field_info",
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sizeof(struct field_info), 200 * sizeof(struct field_info),
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G_ALLOC_AND_FREE);
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gmc_item_labels = g_mem_chunk_new("gmc_item_labels",
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ITEM_LABEL_LENGTH, 20 * ITEM_LABEL_LENGTH,
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G_ALLOC_AND_FREE);
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gpa_hfinfo = g_ptr_array_new();
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/* Allocate "tree_is_expanded", with one element for ETT_NONE,
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and initialize that element to FALSE. */
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tree_is_expanded = g_malloc(sizeof (gint));
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tree_is_expanded[0] = FALSE;
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num_tree_types = 1;
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/* Initialize the ftype subsystem */
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ftypes_initialize();
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/* Have each built-in dissector register its protocols, fields,
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dissector tables, and dissectors to be called through a
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handle, and do whatever one-time initialization it needs to
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do. */
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register_all_protocols();
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#ifdef HAVE_PLUGINS
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/* Now scan for plugins and load all the ones we find, calling
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their register routines to do the stuff described above. */
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init_plugins(plugin_dir);
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#endif
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/* Now call the "handoff registration" routines of all built-in
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dissectors; those routines register the dissector in other
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dissectors' handoff tables, and fetch any dissector handles
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they need. */
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register_all_protocol_handoffs();
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#ifdef HAVE_PLUGINS
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/* Now do the same with plugins. */
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register_all_plugin_handoffs();
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#endif
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/* Register one special-case FT_TEXT_ONLY field for use when
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converting ethereal to new-style proto_tree. These fields
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are merely strings on the GUI tree; they are not filterable */
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proto_register_field_array(-1, hf, array_length(hf));
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/* We've assigned all the subtree type values; allocate the array
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for them, and zero it out. */
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tree_is_expanded = g_malloc(num_tree_types*sizeof (gint *));
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memset(tree_is_expanded, '\0', num_tree_types*sizeof (gint *));
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}
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void
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proto_cleanup(void)
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{
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if (gmc_hfinfo)
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g_mem_chunk_destroy(gmc_hfinfo);
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if (gmc_field_info)
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g_mem_chunk_destroy(gmc_field_info);
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if (gmc_item_labels)
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g_mem_chunk_destroy(gmc_item_labels);
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if (gpa_hfinfo)
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g_ptr_array_free(gpa_hfinfo, FALSE);
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/* Cleanup the ftype subsystem */
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ftypes_cleanup();
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}
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/* frees the resources that the dissection a proto_tree uses */
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void
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proto_tree_free(proto_tree *tree)
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{
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g_node_traverse((GNode*)tree, G_IN_ORDER, G_TRAVERSE_ALL, -1,
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proto_tree_free_node, NULL);
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g_node_destroy((GNode*)tree);
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}
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/* We accept a void* instead of a field_info* to satisfy CLEANUP_POP */
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static void
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free_field_info(void *fi)
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{
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g_mem_chunk_free(gmc_field_info, (field_info*)fi);
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}
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static gboolean
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proto_tree_free_node(GNode *node, gpointer data)
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{
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field_info *fi = (field_info*) (node->data);
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if (fi != NULL) {
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if (fi->representation) {
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g_mem_chunk_free(gmc_item_labels, fi->representation);
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}
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fvalue_free(fi->value);
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free_field_info(fi);
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}
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return FALSE; /* FALSE = do not end traversal of GNode tree */
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}
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/* Finds a record in the hf_info_records array by id. */
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header_field_info*
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proto_registrar_get_nth(int hfindex)
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{
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g_assert(hfindex >= 0 && hfindex < gpa_hfinfo->len);
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return g_ptr_array_index(gpa_hfinfo, hfindex);
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}
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/* Add a node with no text */
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proto_item *
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proto_tree_add_notext(proto_tree *tree, tvbuff_t *tvb, gint start, gint length)
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{
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proto_item *pi;
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pi = proto_tree_add_pi(tree, hf_text_only, tvb, start, length, NULL);
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if (pi == NULL)
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return(NULL);
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return pi;
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}
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/* Add a text-only node to the proto_tree */
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proto_item *
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proto_tree_add_text(proto_tree *tree, tvbuff_t *tvb, gint start, gint length,
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const char *format, ...)
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{
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proto_item *pi;
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va_list ap;
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pi = proto_tree_add_notext(tree, tvb, start, length);
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if (pi == NULL)
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return(NULL);
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va_start(ap, format);
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proto_tree_set_representation(pi, format, ap);
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va_end(ap);
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return pi;
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}
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/* Add a text-only node to the proto_tree (va_list version) */
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proto_item *
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proto_tree_add_text_valist(proto_tree *tree, tvbuff_t *tvb, gint start,
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gint length, const char *format, va_list ap)
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{
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proto_item *pi;
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pi = proto_tree_add_notext(tree, tvb, start, length);
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if (pi == NULL)
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return(NULL);
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proto_tree_set_representation(pi, format, ap);
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return pi;
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}
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/* Add a text-only node for debugging purposes. The caller doesn't need
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* to worry about tvbuff, start, or length. Debug message gets sent to
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* STDOUT, too */
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proto_item *
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proto_tree_add_debug_text(proto_tree *tree, const char *format, ...)
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{
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proto_item *pi;
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va_list ap;
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pi = proto_tree_add_notext(tree, NULL, 0, 0);
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if (pi == NULL)
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return(NULL);
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va_start(ap, format);
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proto_tree_set_representation(pi, format, ap);
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vprintf(format, ap);
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va_end(ap);
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printf("\n");
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return pi;
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}
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static guint32
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get_uint_value(tvbuff_t *tvb, gint offset, gint length, gboolean little_endian)
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{
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guint32 value;
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switch (length) {
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case 1:
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value = tvb_get_guint8(tvb, offset);
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break;
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case 2:
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value = little_endian ? tvb_get_letohs(tvb, offset)
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: tvb_get_ntohs(tvb, offset);
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break;
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case 3:
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value = little_endian ? tvb_get_letoh24(tvb, offset)
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: tvb_get_ntoh24(tvb, offset);
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break;
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case 4:
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value = little_endian ? tvb_get_letohl(tvb, offset)
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: tvb_get_ntohl(tvb, offset);
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break;
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default:
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g_assert_not_reached();
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value = 0;
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break;
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}
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return value;
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}
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static gint32
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get_int_value(tvbuff_t *tvb, gint offset, gint length, gboolean little_endian)
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{
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gint32 value;
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switch (length) {
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case 1:
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value = (gint8)tvb_get_guint8(tvb, offset);
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break;
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case 2:
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value = (gint16) (little_endian ? tvb_get_letohs(tvb, offset)
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: tvb_get_ntohs(tvb, offset));
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break;
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case 3:
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value = little_endian ? tvb_get_letoh24(tvb, offset)
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: tvb_get_ntoh24(tvb, offset);
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if (value & 0x00800000) {
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/* Sign bit is set; sign-extend it. */
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value |= 0xFF000000;
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}
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break;
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case 4:
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value = little_endian ? tvb_get_letohl(tvb, offset)
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: tvb_get_ntohl(tvb, offset);
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break;
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default:
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g_assert_not_reached();
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value = 0;
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break;
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}
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return value;
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}
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/* Add an item to a proto_tree, using the text label registered to that item;
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the item is extracted from the tvbuff handed to it. */
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proto_item *
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proto_tree_add_item(proto_tree *tree, int hfindex, tvbuff_t *tvb,
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gint start, gint length, gboolean little_endian)
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{
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field_info *new_fi;
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proto_item *pi;
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guint32 value, n;
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char *string;
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int found_length;
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if (!tree)
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return(NULL);
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new_fi = alloc_field_info(hfindex, tvb, start, length);
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if (new_fi == NULL)
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return(NULL);
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/* Register a cleanup function in case on of our tvbuff accesses
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* throws an exception. We need to clean up new_fi. */
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CLEANUP_PUSH(free_field_info, new_fi);
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switch(new_fi->hfinfo->type) {
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case FT_NONE:
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/* no value to set for FT_NONE */
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break;
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case FT_PROTOCOL:
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proto_tree_set_protocol_tvb(new_fi, tvb);
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break;
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case FT_BYTES:
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proto_tree_set_bytes_tvb(new_fi, tvb, start, length);
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break;
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case FT_BOOLEAN:
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proto_tree_set_boolean(new_fi,
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get_uint_value(tvb, start, length, little_endian));
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break;
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/* XXX - make these just FT_UINT? */
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case FT_UINT8:
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case FT_UINT16:
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case FT_UINT24:
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case FT_UINT32:
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proto_tree_set_uint(new_fi,
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get_uint_value(tvb, start, length, little_endian));
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break;
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/* XXX - make these just FT_INT? */
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case FT_INT8:
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case FT_INT16:
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case FT_INT24:
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case FT_INT32:
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proto_tree_set_int(new_fi,
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get_int_value(tvb, start, length, little_endian));
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break;
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case FT_IPv4:
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g_assert(length == 4);
|
|
tvb_memcpy(tvb, (guint8 *)&value, start, 4);
|
|
proto_tree_set_ipv4(new_fi, value);
|
|
break;
|
|
|
|
case FT_IPXNET:
|
|
g_assert(length == 4);
|
|
proto_tree_set_ipxnet(new_fi,
|
|
get_uint_value(tvb, start, 4, FALSE));
|
|
break;
|
|
|
|
case FT_IPv6:
|
|
g_assert(length == 16);
|
|
proto_tree_set_ipv6_tvb(new_fi, tvb, start);
|
|
break;
|
|
|
|
case FT_ETHER:
|
|
g_assert(length == 6);
|
|
proto_tree_set_ether_tvb(new_fi, tvb, start);
|
|
break;
|
|
|
|
case FT_STRING:
|
|
/* This g_strdup'ed memory is freed in proto_tree_free_node() */
|
|
proto_tree_set_string_tvb(new_fi, tvb, start, length);
|
|
break;
|
|
|
|
case FT_STRINGZ:
|
|
/* This g_strdup'ed memory is freed in proto_tree_free_node() */
|
|
string = g_malloc(length);
|
|
|
|
CLEANUP_PUSH(g_free, string);
|
|
|
|
found_length = tvb_get_nstringz(tvb, start, length, string);
|
|
if (found_length < 1) {
|
|
found_length = tvb_get_nstringz0(tvb, start, length, string);
|
|
}
|
|
|
|
CLEANUP_POP;
|
|
|
|
proto_tree_set_string(new_fi, string);
|
|
new_fi->length = found_length + 1;
|
|
|
|
break;
|
|
|
|
case FT_UINT_STRING:
|
|
/* This g_strdup'ed memory is freed in proto_tree_free_node() */
|
|
n = get_uint_value(tvb, start, length, little_endian);
|
|
proto_tree_set_string_tvb(new_fi, tvb, start + 1, n);
|
|
|
|
/* Instead of calling proto_item_set_len(), since we don't yet
|
|
* have a proto_item, we set the field_info's length ourselves. */
|
|
new_fi->length = n + 1;
|
|
break;
|
|
default:
|
|
g_error("new_fi->hfinfo->type %d (%s) not handled\n",
|
|
new_fi->hfinfo->type,
|
|
ftype_name(new_fi->hfinfo->type));
|
|
g_assert_not_reached();
|
|
break;
|
|
|
|
}
|
|
CLEANUP_POP;
|
|
|
|
/* Don't add to proto_item to proto_tree until now so that any exceptions
|
|
* raised by a tvbuff access method doesn't leave junk in the proto_tree. */
|
|
pi = proto_tree_add_node(tree, new_fi);
|
|
|
|
return pi;
|
|
}
|
|
|
|
proto_item *
|
|
proto_tree_add_item_hidden(proto_tree *tree, int hfindex, tvbuff_t *tvb,
|
|
gint start, gint length, gboolean little_endian)
|
|
{
|
|
proto_item *pi;
|
|
field_info *fi;
|
|
|
|
pi = proto_tree_add_item(tree, hfindex, tvb, start, length, little_endian);
|
|
if (pi == NULL)
|
|
return(NULL);
|
|
|
|
fi = (field_info*) (((GNode*)pi)->data);
|
|
fi->visible = FALSE;
|
|
|
|
return pi;
|
|
}
|
|
|
|
|
|
/* Add a FT_NONE to a proto_tree */
|
|
proto_item *
|
|
proto_tree_add_none_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
|
|
gint length, const char *format, ...)
|
|
{
|
|
proto_item *pi;
|
|
va_list ap;
|
|
header_field_info *hfinfo;
|
|
|
|
if (!tree)
|
|
return (NULL);
|
|
|
|
hfinfo = proto_registrar_get_nth(hfindex);
|
|
g_assert(hfinfo->type == FT_NONE);
|
|
|
|
pi = proto_tree_add_pi(tree, hfindex, tvb, start, length, NULL);
|
|
|
|
va_start(ap, format);
|
|
proto_tree_set_representation(pi, format, ap);
|
|
va_end(ap);
|
|
|
|
/* no value to set for FT_NONE */
|
|
return pi;
|
|
}
|
|
|
|
|
|
static void
|
|
proto_tree_set_protocol_tvb(field_info *fi, tvbuff_t *tvb)
|
|
{
|
|
fvalue_set(fi->value, tvb, TRUE);
|
|
}
|
|
|
|
/* Add a FT_PROTOCOL to a proto_tree */
|
|
proto_item *
|
|
proto_tree_add_protocol_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
|
|
gint length, const char *format, ...)
|
|
{
|
|
proto_item *pi;
|
|
va_list ap;
|
|
header_field_info *hfinfo;
|
|
field_info *new_fi;
|
|
|
|
if (!tree)
|
|
return (NULL);
|
|
|
|
hfinfo = proto_registrar_get_nth(hfindex);
|
|
g_assert(hfinfo->type == FT_PROTOCOL);
|
|
|
|
pi = proto_tree_add_pi(tree, hfindex, tvb, start, length, &new_fi);
|
|
|
|
va_start(ap, format);
|
|
proto_tree_set_representation(pi, format, ap);
|
|
va_end(ap);
|
|
|
|
if (start == 0) {
|
|
proto_tree_set_protocol_tvb(new_fi, tvb);
|
|
}
|
|
else {
|
|
proto_tree_set_protocol_tvb(new_fi, NULL);
|
|
}
|
|
return pi;
|
|
}
|
|
|
|
|
|
/* Add a FT_BYTES to a proto_tree */
|
|
proto_item *
|
|
proto_tree_add_bytes(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
|
|
gint length, const guint8 *start_ptr)
|
|
{
|
|
proto_item *pi;
|
|
field_info *new_fi;
|
|
header_field_info *hfinfo;
|
|
|
|
if (!tree)
|
|
return (NULL);
|
|
|
|
hfinfo = proto_registrar_get_nth(hfindex);
|
|
g_assert(hfinfo->type == FT_BYTES);
|
|
|
|
pi = proto_tree_add_pi(tree, hfindex, tvb, start, length, &new_fi);
|
|
proto_tree_set_bytes(new_fi, start_ptr, length);
|
|
|
|
return pi;
|
|
}
|
|
|
|
proto_item *
|
|
proto_tree_add_bytes_hidden(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
|
|
gint length, const guint8 *start_ptr)
|
|
{
|
|
proto_item *pi;
|
|
field_info *fi;
|
|
|
|
pi = proto_tree_add_bytes(tree, hfindex, tvb, start, length, start_ptr);
|
|
if (pi == NULL)
|
|
return (NULL);
|
|
|
|
fi = (field_info*) (((GNode*)pi)->data);
|
|
fi->visible = FALSE;
|
|
|
|
return pi;
|
|
}
|
|
|
|
proto_item *
|
|
proto_tree_add_bytes_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
|
|
gint length, const guint8 *start_ptr, const char *format, ...)
|
|
{
|
|
proto_item *pi;
|
|
va_list ap;
|
|
|
|
pi = proto_tree_add_bytes(tree, hfindex, tvb, start, length, start_ptr);
|
|
if (pi == NULL)
|
|
return (NULL);
|
|
|
|
va_start(ap, format);
|
|
proto_tree_set_representation(pi, format, ap);
|
|
va_end(ap);
|
|
|
|
return pi;
|
|
}
|
|
|
|
static void
|
|
proto_tree_set_bytes(field_info *fi, const guint8* start_ptr, gint length)
|
|
{
|
|
GByteArray *bytes;
|
|
|
|
bytes = g_byte_array_new();
|
|
if (length > 0) {
|
|
g_byte_array_append(bytes, start_ptr, length);
|
|
}
|
|
fvalue_set(fi->value, bytes, TRUE);
|
|
}
|
|
|
|
|
|
static void
|
|
proto_tree_set_bytes_tvb(field_info *fi, tvbuff_t *tvb, gint offset, gint length)
|
|
{
|
|
proto_tree_set_bytes(fi, tvb_get_ptr(tvb, offset, length), length);
|
|
}
|
|
|
|
/* Add a FT_*TIME to a proto_tree */
|
|
proto_item *
|
|
proto_tree_add_time(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start, gint length,
|
|
struct timeval *value_ptr)
|
|
{
|
|
proto_item *pi;
|
|
field_info *new_fi;
|
|
header_field_info *hfinfo;
|
|
|
|
if (!tree)
|
|
return (NULL);
|
|
|
|
hfinfo = proto_registrar_get_nth(hfindex);
|
|
g_assert(hfinfo->type == FT_ABSOLUTE_TIME ||
|
|
hfinfo->type == FT_RELATIVE_TIME);
|
|
|
|
pi = proto_tree_add_pi(tree, hfindex, tvb, start, length, &new_fi);
|
|
proto_tree_set_time(new_fi, value_ptr);
|
|
|
|
return pi;
|
|
}
|
|
|
|
proto_item *
|
|
proto_tree_add_time_hidden(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start, gint length,
|
|
struct timeval *value_ptr)
|
|
{
|
|
proto_item *pi;
|
|
field_info *fi;
|
|
|
|
pi = proto_tree_add_time(tree, hfindex, tvb, start, length, value_ptr);
|
|
if (pi == NULL)
|
|
return (NULL);
|
|
|
|
fi = (field_info*) (((GNode*)pi)->data);
|
|
fi->visible = FALSE;
|
|
|
|
return pi;
|
|
}
|
|
|
|
proto_item *
|
|
proto_tree_add_time_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start, gint length,
|
|
struct timeval *value_ptr, const char *format, ...)
|
|
{
|
|
proto_item *pi;
|
|
va_list ap;
|
|
|
|
pi = proto_tree_add_time(tree, hfindex, tvb, start, length, value_ptr);
|
|
if (pi == NULL)
|
|
return (NULL);
|
|
|
|
va_start(ap, format);
|
|
proto_tree_set_representation(pi, format, ap);
|
|
va_end(ap);
|
|
|
|
return pi;
|
|
}
|
|
|
|
/* Set the FT_*TIME value */
|
|
static void
|
|
proto_tree_set_time(field_info *fi, struct timeval *value_ptr)
|
|
{
|
|
fvalue_set(fi->value, value_ptr, FALSE);
|
|
}
|
|
|
|
/* Add a FT_IPXNET to a proto_tree */
|
|
proto_item *
|
|
proto_tree_add_ipxnet(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start, gint length,
|
|
guint32 value)
|
|
{
|
|
proto_item *pi;
|
|
field_info *new_fi;
|
|
header_field_info *hfinfo;
|
|
|
|
if (!tree)
|
|
return (NULL);
|
|
|
|
hfinfo = proto_registrar_get_nth(hfindex);
|
|
g_assert(hfinfo->type == FT_IPXNET);
|
|
|
|
pi = proto_tree_add_pi(tree, hfindex, tvb, start, length, &new_fi);
|
|
proto_tree_set_ipxnet(new_fi, value);
|
|
|
|
return pi;
|
|
}
|
|
|
|
proto_item *
|
|
proto_tree_add_ipxnet_hidden(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start, gint length,
|
|
guint32 value)
|
|
{
|
|
proto_item *pi;
|
|
field_info *fi;
|
|
|
|
pi = proto_tree_add_ipxnet(tree, hfindex, tvb, start, length, value);
|
|
if (pi == NULL)
|
|
return (NULL);
|
|
|
|
fi = (field_info*) (((GNode*)pi)->data);
|
|
fi->visible = FALSE;
|
|
|
|
return pi;
|
|
}
|
|
|
|
proto_item *
|
|
proto_tree_add_ipxnet_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start, gint length,
|
|
guint32 value, const char *format, ...)
|
|
{
|
|
proto_item *pi;
|
|
va_list ap;
|
|
|
|
pi = proto_tree_add_ipxnet(tree, hfindex, tvb, start, length, value);
|
|
if (pi == NULL)
|
|
return (NULL);
|
|
|
|
va_start(ap, format);
|
|
proto_tree_set_representation(pi, format, ap);
|
|
va_end(ap);
|
|
|
|
return pi;
|
|
}
|
|
|
|
/* Set the FT_IPXNET value */
|
|
static void
|
|
proto_tree_set_ipxnet(field_info *fi, guint32 value)
|
|
{
|
|
fvalue_set_integer(fi->value, value);
|
|
}
|
|
|
|
/* Add a FT_IPv4 to a proto_tree */
|
|
proto_item *
|
|
proto_tree_add_ipv4(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start, gint length,
|
|
guint32 value)
|
|
{
|
|
proto_item *pi;
|
|
field_info *new_fi;
|
|
header_field_info *hfinfo;
|
|
|
|
if (!tree)
|
|
return (NULL);
|
|
|
|
hfinfo = proto_registrar_get_nth(hfindex);
|
|
g_assert(hfinfo->type == FT_IPv4);
|
|
|
|
pi = proto_tree_add_pi(tree, hfindex, tvb, start, length, &new_fi);
|
|
proto_tree_set_ipv4(new_fi, value);
|
|
|
|
return pi;
|
|
}
|
|
|
|
proto_item *
|
|
proto_tree_add_ipv4_hidden(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start, gint length,
|
|
guint32 value)
|
|
{
|
|
proto_item *pi;
|
|
field_info *fi;
|
|
|
|
pi = proto_tree_add_ipv4(tree, hfindex, tvb, start, length, value);
|
|
if (pi == NULL)
|
|
return (NULL);
|
|
|
|
fi = (field_info*) (((GNode*)pi)->data);
|
|
fi->visible = FALSE;
|
|
|
|
return pi;
|
|
}
|
|
|
|
proto_item *
|
|
proto_tree_add_ipv4_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start, gint length,
|
|
guint32 value, const char *format, ...)
|
|
{
|
|
proto_item *pi;
|
|
va_list ap;
|
|
|
|
pi = proto_tree_add_ipv4(tree, hfindex, tvb, start, length, value);
|
|
if (pi == NULL)
|
|
return (NULL);
|
|
|
|
va_start(ap, format);
|
|
proto_tree_set_representation(pi, format, ap);
|
|
va_end(ap);
|
|
|
|
return pi;
|
|
}
|
|
|
|
/* Set the FT_IPv4 value */
|
|
static void
|
|
proto_tree_set_ipv4(field_info *fi, guint32 value)
|
|
{
|
|
fvalue_set_integer(fi->value, value);
|
|
}
|
|
|
|
/* Add a FT_IPv6 to a proto_tree */
|
|
proto_item *
|
|
proto_tree_add_ipv6(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start, gint length,
|
|
const guint8* value_ptr)
|
|
{
|
|
proto_item *pi;
|
|
field_info *new_fi;
|
|
header_field_info *hfinfo;
|
|
|
|
if (!tree)
|
|
return (NULL);
|
|
|
|
hfinfo = proto_registrar_get_nth(hfindex);
|
|
g_assert(hfinfo->type == FT_IPv6);
|
|
|
|
pi = proto_tree_add_pi(tree, hfindex, tvb, start, length, &new_fi);
|
|
proto_tree_set_ipv6(new_fi, value_ptr);
|
|
|
|
return pi;
|
|
}
|
|
|
|
proto_item *
|
|
proto_tree_add_ipv6_hidden(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start, gint length,
|
|
const guint8* value_ptr)
|
|
{
|
|
proto_item *pi;
|
|
field_info *fi;
|
|
|
|
pi = proto_tree_add_ipv6(tree, hfindex, tvb, start, length, value_ptr);
|
|
if (pi == NULL)
|
|
return (NULL);
|
|
|
|
fi = (field_info*) (((GNode*)pi)->data);
|
|
fi->visible = FALSE;
|
|
|
|
return pi;
|
|
}
|
|
|
|
proto_item *
|
|
proto_tree_add_ipv6_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start, gint length,
|
|
const guint8* value_ptr, const char *format, ...)
|
|
{
|
|
proto_item *pi;
|
|
va_list ap;
|
|
|
|
pi = proto_tree_add_ipv6(tree, hfindex, tvb, start, length, value_ptr);
|
|
if (pi == NULL)
|
|
return (NULL);
|
|
|
|
va_start(ap, format);
|
|
proto_tree_set_representation(pi, format, ap);
|
|
va_end(ap);
|
|
|
|
return pi;
|
|
}
|
|
|
|
/* Set the FT_IPv6 value */
|
|
static void
|
|
proto_tree_set_ipv6(field_info *fi, const guint8* value_ptr)
|
|
{
|
|
fvalue_set(fi->value, (gpointer) value_ptr, FALSE);
|
|
}
|
|
|
|
static void
|
|
proto_tree_set_ipv6_tvb(field_info *fi, tvbuff_t *tvb, gint start)
|
|
{
|
|
proto_tree_set_ipv6(fi, tvb_get_ptr(tvb, start, 16));
|
|
}
|
|
|
|
/* Add a FT_STRING to a proto_tree */
|
|
proto_item *
|
|
proto_tree_add_string(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
|
|
gint length, const char* value)
|
|
{
|
|
proto_item *pi;
|
|
field_info *new_fi;
|
|
header_field_info *hfinfo;
|
|
|
|
if (!tree)
|
|
return (NULL);
|
|
|
|
hfinfo = proto_registrar_get_nth(hfindex);
|
|
g_assert(hfinfo->type == FT_STRING);
|
|
|
|
pi = proto_tree_add_pi(tree, hfindex, tvb, start, length, &new_fi);
|
|
proto_tree_set_string(new_fi, value);
|
|
|
|
return pi;
|
|
}
|
|
|
|
proto_item *
|
|
proto_tree_add_string_hidden(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
|
|
gint length, const char* value)
|
|
{
|
|
proto_item *pi;
|
|
field_info *fi;
|
|
|
|
pi = proto_tree_add_string(tree, hfindex, tvb, start, length, value);
|
|
if (pi == NULL)
|
|
return (NULL);
|
|
|
|
fi = (field_info*) (((GNode*)pi)->data);
|
|
fi->visible = FALSE;
|
|
|
|
return pi;
|
|
}
|
|
|
|
proto_item *
|
|
proto_tree_add_string_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
|
|
gint length, const char* value, const char *format, ...)
|
|
{
|
|
proto_item *pi;
|
|
va_list ap;
|
|
|
|
pi = proto_tree_add_string(tree, hfindex, tvb, start, length, value);
|
|
if (pi == NULL)
|
|
return (NULL);
|
|
|
|
va_start(ap, format);
|
|
proto_tree_set_representation(pi, format, ap);
|
|
va_end(ap);
|
|
|
|
return pi;
|
|
}
|
|
|
|
/* Set the FT_STRING value */
|
|
static void
|
|
proto_tree_set_string(field_info *fi, const char* value)
|
|
{
|
|
fvalue_set(fi->value, (gpointer) value, FALSE);
|
|
}
|
|
|
|
static void
|
|
proto_tree_set_string_tvb(field_info *fi, tvbuff_t *tvb, gint start, gint length)
|
|
{
|
|
gchar *string;
|
|
|
|
/* This memory is freed in proto_tree_free_node() */
|
|
string = g_malloc(length + 1);
|
|
tvb_memcpy(tvb, string, start, length);
|
|
string[length] = '\0';
|
|
fvalue_set(fi->value, string, TRUE);
|
|
}
|
|
|
|
/* Add a FT_ETHER to a proto_tree */
|
|
proto_item *
|
|
proto_tree_add_ether(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start, gint length,
|
|
const guint8* value)
|
|
{
|
|
proto_item *pi;
|
|
field_info *new_fi;
|
|
header_field_info *hfinfo;
|
|
|
|
if (!tree)
|
|
return (NULL);
|
|
|
|
hfinfo = proto_registrar_get_nth(hfindex);
|
|
g_assert(hfinfo->type == FT_ETHER);
|
|
|
|
pi = proto_tree_add_pi(tree, hfindex, tvb, start, length, &new_fi);
|
|
proto_tree_set_ether(new_fi, value);
|
|
|
|
return pi;
|
|
}
|
|
|
|
proto_item *
|
|
proto_tree_add_ether_hidden(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start, gint length,
|
|
const guint8* value)
|
|
{
|
|
proto_item *pi;
|
|
field_info *fi;
|
|
|
|
pi = proto_tree_add_ether(tree, hfindex, tvb, start, length, value);
|
|
if (pi == NULL)
|
|
return (NULL);
|
|
|
|
fi = (field_info*) (((GNode*)pi)->data);
|
|
fi->visible = FALSE;
|
|
|
|
return pi;
|
|
}
|
|
|
|
proto_item *
|
|
proto_tree_add_ether_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start, gint length,
|
|
const guint8* value, const char *format, ...)
|
|
{
|
|
proto_item *pi;
|
|
va_list ap;
|
|
|
|
pi = proto_tree_add_ether(tree, hfindex, tvb, start, length, value);
|
|
if (pi == NULL)
|
|
return (NULL);
|
|
|
|
va_start(ap, format);
|
|
proto_tree_set_representation(pi, format, ap);
|
|
va_end(ap);
|
|
|
|
return pi;
|
|
}
|
|
|
|
/* Set the FT_ETHER value */
|
|
static void
|
|
proto_tree_set_ether(field_info *fi, const guint8* value)
|
|
{
|
|
fvalue_set(fi->value, (gpointer) value, FALSE);
|
|
}
|
|
|
|
static void
|
|
proto_tree_set_ether_tvb(field_info *fi, tvbuff_t *tvb, gint start)
|
|
{
|
|
proto_tree_set_ether(fi, tvb_get_ptr(tvb, start, 6));
|
|
}
|
|
|
|
/* Add a FT_BOOLEAN to a proto_tree */
|
|
proto_item *
|
|
proto_tree_add_boolean(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start, gint length,
|
|
guint32 value)
|
|
{
|
|
proto_item *pi;
|
|
field_info *new_fi;
|
|
header_field_info *hfinfo;
|
|
|
|
if (!tree)
|
|
return (NULL);
|
|
|
|
hfinfo = proto_registrar_get_nth(hfindex);
|
|
g_assert(hfinfo->type == FT_BOOLEAN);
|
|
|
|
pi = proto_tree_add_pi(tree, hfindex, tvb, start, length, &new_fi);
|
|
proto_tree_set_boolean(new_fi, value);
|
|
|
|
return pi;
|
|
}
|
|
|
|
proto_item *
|
|
proto_tree_add_boolean_hidden(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start, gint length,
|
|
guint32 value)
|
|
{
|
|
proto_item *pi;
|
|
field_info *fi;
|
|
|
|
pi = proto_tree_add_boolean(tree, hfindex, tvb, start, length, value);
|
|
if (pi == NULL)
|
|
return (NULL);
|
|
|
|
fi = (field_info*) (((GNode*)pi)->data);
|
|
fi->visible = FALSE;
|
|
|
|
return pi;
|
|
}
|
|
|
|
proto_item *
|
|
proto_tree_add_boolean_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start, gint length,
|
|
guint32 value, const char *format, ...)
|
|
{
|
|
proto_item *pi;
|
|
va_list ap;
|
|
|
|
pi = proto_tree_add_boolean(tree, hfindex, tvb, start, length, value);
|
|
if (pi == NULL)
|
|
return (NULL);
|
|
|
|
va_start(ap, format);
|
|
proto_tree_set_representation(pi, format, ap);
|
|
va_end(ap);
|
|
|
|
return pi;
|
|
}
|
|
|
|
/* Set the FT_BOOLEAN value */
|
|
static void
|
|
proto_tree_set_boolean(field_info *fi, guint32 value)
|
|
{
|
|
proto_tree_set_uint(fi, value);
|
|
}
|
|
|
|
/* Add a FT_DOUBLE to a proto_tree */
|
|
proto_item *
|
|
proto_tree_add_double(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start, gint length,
|
|
double value)
|
|
{
|
|
proto_item *pi;
|
|
field_info *new_fi;
|
|
header_field_info *hfinfo;
|
|
|
|
if (!tree)
|
|
return (NULL);
|
|
|
|
hfinfo = proto_registrar_get_nth(hfindex);
|
|
g_assert(hfinfo->type == FT_DOUBLE);
|
|
|
|
pi = proto_tree_add_pi(tree, hfindex, tvb, start, length, &new_fi);
|
|
proto_tree_set_double(new_fi, value);
|
|
|
|
return pi;
|
|
}
|
|
|
|
proto_item *
|
|
proto_tree_add_double_hidden(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start, gint length,
|
|
double value)
|
|
{
|
|
proto_item *pi;
|
|
field_info *fi;
|
|
|
|
pi = proto_tree_add_double(tree, hfindex, tvb, start, length, value);
|
|
if (pi == NULL)
|
|
return (NULL);
|
|
|
|
fi = (field_info*) (((GNode*)pi)->data);
|
|
fi->visible = FALSE;
|
|
|
|
return pi;
|
|
}
|
|
|
|
proto_item *
|
|
proto_tree_add_double_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start, gint length,
|
|
double value, const char *format, ...)
|
|
{
|
|
proto_item *pi;
|
|
va_list ap;
|
|
|
|
pi = proto_tree_add_double(tree, hfindex, tvb, start, length, value);
|
|
if (pi == NULL)
|
|
return (NULL);
|
|
|
|
va_start(ap, format);
|
|
proto_tree_set_representation(pi, format, ap);
|
|
va_end(ap);
|
|
|
|
return pi;
|
|
}
|
|
|
|
/* Set the FT_DOUBLE value */
|
|
static void
|
|
proto_tree_set_double(field_info *fi, double value)
|
|
{
|
|
fvalue_set_floating(fi->value, value);
|
|
}
|
|
|
|
/* Add any FT_UINT* to a proto_tree */
|
|
proto_item *
|
|
proto_tree_add_uint(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start, gint length,
|
|
guint32 value)
|
|
{
|
|
proto_item *pi = NULL;
|
|
field_info *new_fi;
|
|
header_field_info *hfinfo;
|
|
|
|
if (!tree)
|
|
return (NULL);
|
|
|
|
hfinfo = proto_registrar_get_nth(hfindex);
|
|
switch(hfinfo->type) {
|
|
case FT_UINT8:
|
|
case FT_UINT16:
|
|
case FT_UINT24:
|
|
case FT_UINT32:
|
|
pi = proto_tree_add_pi(tree, hfindex, tvb, start, length,
|
|
&new_fi);
|
|
proto_tree_set_uint(new_fi, value);
|
|
break;
|
|
|
|
default:
|
|
g_assert_not_reached();
|
|
}
|
|
|
|
return pi;
|
|
}
|
|
|
|
proto_item *
|
|
proto_tree_add_uint_hidden(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start, gint length,
|
|
guint32 value)
|
|
{
|
|
proto_item *pi;
|
|
field_info *fi;
|
|
|
|
pi = proto_tree_add_uint(tree, hfindex, tvb, start, length, value);
|
|
if (pi == NULL)
|
|
return (NULL);
|
|
|
|
fi = (field_info*) (((GNode*)pi)->data);
|
|
fi->visible = FALSE;
|
|
|
|
return pi;
|
|
}
|
|
|
|
proto_item *
|
|
proto_tree_add_uint_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start, gint length,
|
|
guint32 value, const char *format, ...)
|
|
{
|
|
proto_item *pi;
|
|
va_list ap;
|
|
|
|
pi = proto_tree_add_uint(tree, hfindex, tvb, start, length, value);
|
|
if (pi == NULL)
|
|
return (NULL);
|
|
|
|
va_start(ap, format);
|
|
proto_tree_set_representation(pi, format, ap);
|
|
va_end(ap);
|
|
|
|
return pi;
|
|
}
|
|
|
|
/* Set the FT_UINT* value */
|
|
static void
|
|
proto_tree_set_uint(field_info *fi, guint32 value)
|
|
{
|
|
header_field_info *hfinfo;
|
|
guint32 integer;
|
|
|
|
hfinfo = fi->hfinfo;
|
|
integer = value;
|
|
|
|
if (hfinfo->bitmask) {
|
|
/* Mask out irrelevant portions */
|
|
integer &= hfinfo->bitmask;
|
|
|
|
/* Shift bits */
|
|
if (hfinfo->bitshift > 0) {
|
|
integer >>= hfinfo->bitshift;
|
|
}
|
|
}
|
|
fvalue_set_integer(fi->value, integer);
|
|
}
|
|
|
|
/* Add any FT_INT* to a proto_tree */
|
|
proto_item *
|
|
proto_tree_add_int(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start, gint length,
|
|
gint32 value)
|
|
{
|
|
proto_item *pi = NULL;
|
|
field_info *new_fi;
|
|
header_field_info *hfinfo;
|
|
|
|
if (!tree)
|
|
return (NULL);
|
|
|
|
hfinfo = proto_registrar_get_nth(hfindex);
|
|
switch(hfinfo->type) {
|
|
case FT_INT8:
|
|
case FT_INT16:
|
|
case FT_INT24:
|
|
case FT_INT32:
|
|
pi = proto_tree_add_pi(tree, hfindex, tvb, start, length,
|
|
&new_fi);
|
|
proto_tree_set_int(new_fi, value);
|
|
break;
|
|
|
|
default:
|
|
g_assert_not_reached();
|
|
}
|
|
|
|
return pi;
|
|
}
|
|
|
|
proto_item *
|
|
proto_tree_add_int_hidden(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start, gint length,
|
|
gint32 value)
|
|
{
|
|
proto_item *pi;
|
|
field_info *fi;
|
|
|
|
pi = proto_tree_add_int(tree, hfindex, tvb, start, length, value);
|
|
if (pi == NULL)
|
|
return (NULL);
|
|
|
|
fi = (field_info*) (((GNode*)pi)->data);
|
|
fi->visible = FALSE;
|
|
|
|
return pi;
|
|
}
|
|
|
|
proto_item *
|
|
proto_tree_add_int_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start, gint length,
|
|
gint32 value, const char *format, ...)
|
|
{
|
|
proto_item *pi = NULL;
|
|
va_list ap;
|
|
|
|
pi = proto_tree_add_int(tree, hfindex, tvb, start, length, value);
|
|
if (pi == NULL)
|
|
return (NULL);
|
|
|
|
va_start(ap, format);
|
|
proto_tree_set_representation(pi, format, ap);
|
|
va_end(ap);
|
|
|
|
return pi;
|
|
}
|
|
|
|
/* Set the FT_INT* value */
|
|
static void
|
|
proto_tree_set_int(field_info *fi, gint32 value)
|
|
{
|
|
header_field_info *hfinfo;
|
|
guint32 integer;
|
|
|
|
hfinfo = fi->hfinfo;
|
|
integer = (guint32) value;
|
|
|
|
if (hfinfo->bitmask) {
|
|
/* Mask out irrelevant portions */
|
|
integer &= hfinfo->bitmask;
|
|
|
|
/* Shift bits */
|
|
if (hfinfo->bitshift > 0) {
|
|
integer >>= hfinfo->bitshift;
|
|
}
|
|
}
|
|
fvalue_set_integer(fi->value, integer);
|
|
}
|
|
|
|
|
|
/* Add a field_info struct to the proto_tree, encapsulating it in a GNode (proto_item) */
|
|
static proto_item *
|
|
proto_tree_add_node(proto_tree *tree, field_info *fi)
|
|
{
|
|
proto_item *pi;
|
|
|
|
pi = (proto_item*) g_node_new(fi);
|
|
g_node_append((GNode*)tree, (GNode*)pi);
|
|
|
|
return pi;
|
|
}
|
|
|
|
|
|
/* Generic way to allocate field_info and add to proto_tree.
|
|
* Sets *pfi to address of newly-allocated field_info struct, if pfi is non-NULL. */
|
|
static proto_item *
|
|
proto_tree_add_pi(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start, gint length,
|
|
field_info **pfi)
|
|
{
|
|
proto_item *pi;
|
|
field_info *fi;
|
|
|
|
if (!tree)
|
|
return(NULL);
|
|
|
|
fi = alloc_field_info(hfindex, tvb, start, length);
|
|
pi = proto_tree_add_node(tree, fi);
|
|
|
|
if (pfi) {
|
|
*pfi = fi;
|
|
}
|
|
|
|
return pi;
|
|
}
|
|
|
|
static field_info *
|
|
alloc_field_info(int hfindex, tvbuff_t *tvb, gint start, gint length)
|
|
{
|
|
field_info *fi;
|
|
|
|
fi = g_mem_chunk_alloc(gmc_field_info);
|
|
|
|
g_assert(hfindex >= 0 && hfindex < gpa_hfinfo->len);
|
|
fi->hfinfo = proto_registrar_get_nth(hfindex);
|
|
g_assert(fi->hfinfo != NULL);
|
|
fi->start = start;
|
|
if (tvb) {
|
|
fi->start += tvb_raw_offset(tvb);
|
|
}
|
|
fi->length = length;
|
|
fi->tree_type = ETT_NONE;
|
|
fi->visible = proto_tree_is_visible;
|
|
fi->representation = NULL;
|
|
|
|
fi->value = fvalue_new(fi->hfinfo->type);
|
|
|
|
/* add the data source name */
|
|
/* This has the hack to return a default name for NullTVB. This */
|
|
/* hack can be removed when all dissectors use tvbuffs */
|
|
if ( tvb)
|
|
fi->ds_name = tvb_get_name(tvb);
|
|
else
|
|
fi->ds_name = tvb_get_name(pi.compat_top_tvb);
|
|
|
|
return fi;
|
|
}
|
|
|
|
/* Set representation of a proto_tree entry, if the protocol tree is to
|
|
be visible. */
|
|
static void
|
|
proto_tree_set_representation(proto_item *pi, const char *format, va_list ap)
|
|
{
|
|
field_info *fi = (field_info*) (((GNode*)pi)->data);
|
|
|
|
if (fi->visible) {
|
|
fi->representation = g_mem_chunk_alloc(gmc_item_labels);
|
|
vsnprintf(fi->representation, ITEM_LABEL_LENGTH, format, ap);
|
|
}
|
|
}
|
|
|
|
void
|
|
proto_item_set_text(proto_item *pi, const char *format, ...)
|
|
{
|
|
field_info *fi = (field_info*) (((GNode*)pi)->data);
|
|
va_list ap;
|
|
|
|
if (fi->representation)
|
|
g_mem_chunk_free(gmc_item_labels, fi->representation);
|
|
|
|
va_start(ap, format);
|
|
proto_tree_set_representation(pi, format, ap);
|
|
va_end(ap);
|
|
}
|
|
|
|
void
|
|
proto_item_set_len(proto_item *pi, gint length)
|
|
{
|
|
field_info *fi;
|
|
|
|
if (pi == NULL)
|
|
return;
|
|
fi = (field_info*) (((GNode*)pi)->data);
|
|
fi->length = length;
|
|
}
|
|
|
|
int
|
|
proto_item_get_len(proto_item *pi)
|
|
{
|
|
field_info *fi = (field_info*) (((GNode*)pi)->data);
|
|
return fi->length;
|
|
}
|
|
|
|
proto_tree*
|
|
proto_tree_create_root(void)
|
|
{
|
|
return (proto_tree*) g_node_new(NULL);
|
|
}
|
|
|
|
proto_tree*
|
|
proto_item_add_subtree(proto_item *pi, gint idx) {
|
|
field_info *fi;
|
|
|
|
if (!pi)
|
|
return(NULL);
|
|
|
|
fi = (field_info*) (((GNode*)pi)->data);
|
|
g_assert(idx >= 0 && idx < num_tree_types);
|
|
fi->tree_type = idx;
|
|
return (proto_tree*) pi;
|
|
}
|
|
|
|
static gint
|
|
proto_compare_name(gconstpointer p1_arg, gconstpointer p2_arg)
|
|
{
|
|
const protocol_t *p1 = p1_arg;
|
|
const protocol_t *p2 = p2_arg;
|
|
|
|
return strcmp(p1->short_name, p2->short_name);
|
|
}
|
|
|
|
int
|
|
proto_register_protocol(char *name, char *short_name, char *filter_name)
|
|
{
|
|
protocol_t *protocol;
|
|
header_field_info *hfinfo;
|
|
int proto_id;
|
|
|
|
/* Add this protocol to the list of known protocols; the list
|
|
is sorted by protocol short name. */
|
|
protocol = g_malloc(sizeof (protocol_t));
|
|
protocol->name = name;
|
|
protocol->short_name = short_name;
|
|
protocol->filter_name = filter_name;
|
|
protocol->fields = NULL;
|
|
protocol->is_enabled = TRUE; /* protocol is enabled by default */
|
|
protocol->can_disable = TRUE;
|
|
protocol->dissector = NULL;
|
|
protocols = g_list_insert_sorted(protocols, protocol,
|
|
proto_compare_name);
|
|
|
|
/* Here we do allocate a new header_field_info struct */
|
|
hfinfo = g_mem_chunk_alloc(gmc_hfinfo);
|
|
hfinfo->name = name;
|
|
hfinfo->abbrev = filter_name;
|
|
hfinfo->type = FT_PROTOCOL;
|
|
hfinfo->strings = NULL;
|
|
hfinfo->bitmask = 0;
|
|
hfinfo->bitshift = 0;
|
|
hfinfo->blurb = "";
|
|
hfinfo->parent = -1; /* this field differentiates protos and fields */
|
|
|
|
proto_id = proto_register_field_init(hfinfo, hfinfo->parent);
|
|
protocol->proto_id = proto_id;
|
|
return proto_id;
|
|
}
|
|
|
|
/*
|
|
* Routines to use to iterate over the protocols.
|
|
* The argument passed to the iterator routines is an opaque cookie to
|
|
* their callers; it's the GList pointer for the current element in
|
|
* the list.
|
|
* The ID of the protocol is returned, or -1 if there is no protocol.
|
|
*/
|
|
int
|
|
proto_get_first_protocol(void **cookie)
|
|
{
|
|
protocol_t *protocol;
|
|
|
|
if (protocols == NULL)
|
|
return -1;
|
|
*cookie = protocols;
|
|
protocol = protocols->data;
|
|
return protocol->proto_id;
|
|
}
|
|
|
|
int
|
|
proto_get_next_protocol(void **cookie)
|
|
{
|
|
GList *list_item = *cookie;
|
|
protocol_t *protocol;
|
|
|
|
list_item = g_list_next(list_item);
|
|
if (list_item == NULL)
|
|
return -1;
|
|
*cookie = list_item;
|
|
protocol = list_item->data;
|
|
return protocol->proto_id;
|
|
}
|
|
|
|
/*
|
|
* Find the protocol list entry for a protocol given its field ID.
|
|
*/
|
|
static gint
|
|
compare_proto_id(gconstpointer proto_arg, gconstpointer id_arg)
|
|
{
|
|
const protocol_t *protocol = proto_arg;
|
|
const int *id_ptr = id_arg;
|
|
|
|
return (protocol->proto_id == *id_ptr) ? 0 : 1;
|
|
}
|
|
|
|
static protocol_t *
|
|
find_protocol_by_id(int proto_id)
|
|
{
|
|
GList *list_entry;
|
|
|
|
list_entry = g_list_find_custom(protocols, &proto_id, compare_proto_id);
|
|
if (list_entry == NULL)
|
|
return NULL;
|
|
return list_entry->data;
|
|
}
|
|
|
|
static gint compare_filter_name(gconstpointer proto_arg,
|
|
gconstpointer filter_name)
|
|
{
|
|
const protocol_t *protocol = proto_arg;
|
|
const gchar* f_name = filter_name;
|
|
return (strcmp(protocol->filter_name, f_name));
|
|
}
|
|
|
|
int proto_get_id_by_filter_name(gchar* filter_name)
|
|
{
|
|
GList *list_entry;
|
|
protocol_t *protocol;
|
|
list_entry = g_list_find_custom(protocols,filter_name,compare_filter_name);
|
|
if(list_entry == NULL)
|
|
return -1;
|
|
protocol = list_entry->data;
|
|
return(protocol->proto_id);
|
|
}
|
|
|
|
char *
|
|
proto_get_protocol_name(int proto_id)
|
|
{
|
|
protocol_t *protocol;
|
|
|
|
protocol = find_protocol_by_id(proto_id);
|
|
return protocol->name;
|
|
}
|
|
|
|
char *
|
|
proto_get_protocol_short_name(int proto_id)
|
|
{
|
|
protocol_t *protocol;
|
|
|
|
if (proto_id == -1)
|
|
return "(none)";
|
|
protocol = find_protocol_by_id(proto_id);
|
|
return protocol->short_name;
|
|
}
|
|
|
|
char *
|
|
proto_get_protocol_filter_name(int proto_id)
|
|
{
|
|
protocol_t *protocol;
|
|
|
|
protocol = find_protocol_by_id(proto_id);
|
|
return protocol->filter_name;
|
|
}
|
|
|
|
gboolean
|
|
proto_is_protocol_enabled(int proto_id)
|
|
{
|
|
protocol_t *protocol;
|
|
|
|
protocol = find_protocol_by_id(proto_id);
|
|
return protocol->is_enabled;
|
|
}
|
|
|
|
gboolean
|
|
proto_can_disable_protocol(int proto_id)
|
|
{
|
|
protocol_t *protocol;
|
|
|
|
protocol = find_protocol_by_id(proto_id);
|
|
return protocol->can_disable;
|
|
}
|
|
|
|
void
|
|
proto_set_decoding(int proto_id, gboolean enabled)
|
|
{
|
|
protocol_t *protocol;
|
|
|
|
protocol = find_protocol_by_id(proto_id);
|
|
g_assert(enabled || protocol->can_disable);
|
|
protocol->is_enabled = enabled;
|
|
}
|
|
|
|
void
|
|
proto_set_cant_disable(int proto_id)
|
|
{
|
|
protocol_t *protocol;
|
|
|
|
protocol = find_protocol_by_id(proto_id);
|
|
protocol->can_disable = FALSE;
|
|
}
|
|
|
|
gpointer
|
|
proto_get_protocol_dissector(int proto_id)
|
|
{
|
|
protocol_t *protocol;
|
|
|
|
protocol = find_protocol_by_id(proto_id);
|
|
if (protocol == NULL)
|
|
return(NULL);
|
|
return protocol->dissector;
|
|
}
|
|
|
|
void
|
|
proto_set_protocol_dissector(int proto_id, gpointer dissector)
|
|
{
|
|
protocol_t *protocol;
|
|
|
|
protocol = find_protocol_by_id(proto_id);
|
|
if (protocol != NULL) {
|
|
if (protocol->dissector != NULL) {
|
|
/* Already set */
|
|
return;
|
|
}
|
|
protocol->dissector = dissector;
|
|
}
|
|
}
|
|
|
|
/* for use with static arrays only, since we don't allocate our own copies
|
|
of the header_field_info struct contained withing the hf_register_info struct */
|
|
void
|
|
proto_register_field_array(int parent, hf_register_info *hf, int num_records)
|
|
{
|
|
int field_id, i;
|
|
hf_register_info *ptr = hf;
|
|
protocol_t *proto;
|
|
|
|
proto = find_protocol_by_id(parent);
|
|
for (i = 0; i < num_records; i++, ptr++) {
|
|
if (proto != NULL) {
|
|
if (proto->fields == NULL) {
|
|
proto->fields = g_list_append(NULL, ptr);
|
|
proto->last_field = proto->fields;
|
|
} else {
|
|
proto->last_field =
|
|
g_list_append(proto->last_field, ptr)->next;
|
|
}
|
|
}
|
|
field_id = proto_register_field_init(&ptr->hfinfo, parent);
|
|
*ptr->p_id = field_id;
|
|
}
|
|
}
|
|
|
|
static int
|
|
proto_register_field_init(header_field_info *hfinfo, int parent)
|
|
{
|
|
/* These types of fields are allowed to have value_strings or true_false_strings */
|
|
g_assert((hfinfo->strings == NULL) || (
|
|
(hfinfo->type == FT_UINT8) ||
|
|
(hfinfo->type == FT_UINT16) ||
|
|
(hfinfo->type == FT_UINT24) ||
|
|
(hfinfo->type == FT_UINT32) ||
|
|
(hfinfo->type == FT_INT8) ||
|
|
(hfinfo->type == FT_INT16) ||
|
|
(hfinfo->type == FT_INT24) ||
|
|
(hfinfo->type == FT_INT32) ||
|
|
(hfinfo->type == FT_BOOLEAN) ));
|
|
|
|
/* Require integral types to have a number base */
|
|
switch (hfinfo->type) {
|
|
|
|
case FT_UINT8:
|
|
case FT_UINT16:
|
|
case FT_UINT24:
|
|
case FT_UINT32:
|
|
case FT_INT8:
|
|
case FT_INT16:
|
|
case FT_INT24:
|
|
case FT_INT32:
|
|
g_assert(hfinfo->display != BASE_NONE);
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
/* if this is a bitfield, compure bitshift */
|
|
if (hfinfo->bitmask) {
|
|
while ((hfinfo->bitmask & (1 << hfinfo->bitshift)) == 0)
|
|
hfinfo->bitshift++;
|
|
}
|
|
|
|
hfinfo->parent = parent;
|
|
hfinfo->same_name_next = NULL;
|
|
hfinfo->same_name_prev = NULL;
|
|
|
|
/* if we always add and never delete, then id == len - 1 is correct */
|
|
g_ptr_array_add(gpa_hfinfo, hfinfo);
|
|
hfinfo->id = gpa_hfinfo->len - 1;
|
|
return hfinfo->id;
|
|
}
|
|
|
|
void
|
|
proto_register_subtree_array(gint **indices, int num_indices)
|
|
{
|
|
int i;
|
|
gint **ptr = indices;
|
|
|
|
/*
|
|
* Add "num_indices" elements to "tree_is_expanded".
|
|
*/
|
|
tree_is_expanded = g_realloc(tree_is_expanded,
|
|
(num_tree_types + num_indices)*sizeof (gint));
|
|
|
|
/*
|
|
* Assign "num_indices" subtree numbers starting at "num_tree_types",
|
|
* returning the indices through the pointers in the array whose
|
|
* first element is pointed to by "indices", set to FALSE the
|
|
* elements to which those subtree numbers refer, and update
|
|
* "num_tree_types" appropriately.
|
|
*/
|
|
for (i = 0; i < num_indices; i++, ptr++, num_tree_types++) {
|
|
tree_is_expanded[num_tree_types] = FALSE;
|
|
**ptr = num_tree_types;
|
|
}
|
|
}
|
|
|
|
void
|
|
proto_item_fill_label(field_info *fi, gchar *label_str)
|
|
{
|
|
header_field_info *hfinfo = fi->hfinfo;
|
|
|
|
guint8 *bytes;
|
|
guint32 integer;
|
|
ipv4_addr *ipv4;
|
|
guint32 n_addr; /* network-order IPv4 address */
|
|
|
|
switch(hfinfo->type) {
|
|
case FT_NONE:
|
|
case FT_PROTOCOL:
|
|
snprintf(label_str, ITEM_LABEL_LENGTH,
|
|
"%s", hfinfo->name);
|
|
break;
|
|
|
|
case FT_BOOLEAN:
|
|
fill_label_boolean(fi, label_str);
|
|
break;
|
|
|
|
case FT_BYTES:
|
|
bytes = fvalue_get(fi->value);
|
|
if (bytes) {
|
|
snprintf(label_str, ITEM_LABEL_LENGTH,
|
|
"%s: %s", hfinfo->name,
|
|
bytes_to_str(bytes, fi->length));
|
|
}
|
|
else {
|
|
snprintf(label_str, ITEM_LABEL_LENGTH,
|
|
"%s: <MISSING>", hfinfo->name);
|
|
}
|
|
break;
|
|
|
|
/* Four types of integers to take care of:
|
|
* Bitfield, with val_string
|
|
* Bitfield, w/o val_string
|
|
* Non-bitfield, with val_string
|
|
* Non-bitfield, w/o val_string
|
|
*/
|
|
case FT_UINT8:
|
|
case FT_UINT16:
|
|
case FT_UINT24:
|
|
case FT_UINT32:
|
|
if (hfinfo->bitmask) {
|
|
if (hfinfo->strings) {
|
|
fill_label_enumerated_bitfield(fi, label_str);
|
|
}
|
|
else {
|
|
fill_label_numeric_bitfield(fi, label_str);
|
|
}
|
|
}
|
|
else {
|
|
if (hfinfo->strings) {
|
|
fill_label_enumerated_uint(fi, label_str);
|
|
}
|
|
else {
|
|
fill_label_uint(fi, label_str);
|
|
}
|
|
}
|
|
break;
|
|
|
|
case FT_INT8:
|
|
case FT_INT16:
|
|
case FT_INT24:
|
|
case FT_INT32:
|
|
g_assert(!hfinfo->bitmask);
|
|
if (hfinfo->strings) {
|
|
fill_label_enumerated_int(fi, label_str);
|
|
}
|
|
else {
|
|
fill_label_int(fi, label_str);
|
|
}
|
|
break;
|
|
|
|
case FT_DOUBLE:
|
|
snprintf(label_str, ITEM_LABEL_LENGTH,
|
|
"%s: %g", hfinfo->name, fvalue_get_floating(fi->value));
|
|
break;
|
|
|
|
case FT_ABSOLUTE_TIME:
|
|
snprintf(label_str, ITEM_LABEL_LENGTH,
|
|
"%s: %s", hfinfo->name,
|
|
abs_time_to_str(fvalue_get(fi->value)));
|
|
break;
|
|
|
|
case FT_RELATIVE_TIME:
|
|
snprintf(label_str, ITEM_LABEL_LENGTH,
|
|
"%s: %s seconds", hfinfo->name,
|
|
rel_time_to_str(fvalue_get(fi->value)));
|
|
break;
|
|
|
|
case FT_IPXNET:
|
|
integer = fvalue_get_integer(fi->value);
|
|
snprintf(label_str, ITEM_LABEL_LENGTH,
|
|
"%s: 0x%08X (%s)", hfinfo->name,
|
|
integer, get_ipxnet_name(integer));
|
|
break;
|
|
|
|
case FT_ETHER:
|
|
bytes = fvalue_get(fi->value);
|
|
snprintf(label_str, ITEM_LABEL_LENGTH,
|
|
"%s: %s (%s)", hfinfo->name,
|
|
ether_to_str(bytes),
|
|
get_ether_name(bytes));
|
|
break;
|
|
|
|
case FT_IPv4:
|
|
ipv4 = fvalue_get(fi->value);
|
|
n_addr = ipv4_get_net_order_addr(ipv4);
|
|
snprintf(label_str, ITEM_LABEL_LENGTH,
|
|
"%s: %s (%s)", hfinfo->name,
|
|
get_hostname(n_addr),
|
|
ip_to_str((guint8*)&n_addr));
|
|
break;
|
|
|
|
case FT_IPv6:
|
|
bytes = fvalue_get(fi->value);
|
|
snprintf(label_str, ITEM_LABEL_LENGTH,
|
|
"%s: %s (%s)", hfinfo->name,
|
|
get_hostname6((struct e_in6_addr *)bytes),
|
|
ip6_to_str((struct e_in6_addr*)bytes));
|
|
break;
|
|
|
|
case FT_STRING:
|
|
case FT_STRINGZ:
|
|
case FT_UINT_STRING:
|
|
snprintf(label_str, ITEM_LABEL_LENGTH,
|
|
"%s: %s", hfinfo->name, (char*) fvalue_get(fi->value));
|
|
break;
|
|
|
|
default:
|
|
g_error("hfinfo->type %d (%s) not handled\n",
|
|
hfinfo->type,
|
|
ftype_name(hfinfo->type));
|
|
g_assert_not_reached();
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
fill_label_boolean(field_info *fi, gchar *label_str)
|
|
{
|
|
char *p = label_str;
|
|
int bitfield_byte_length = 0, bitwidth;
|
|
guint32 unshifted_value;
|
|
guint32 value;
|
|
|
|
header_field_info *hfinfo = fi->hfinfo;
|
|
static true_false_string default_tf = { "True", "False" };
|
|
true_false_string *tfstring = &default_tf;
|
|
|
|
if (hfinfo->strings) {
|
|
tfstring = (struct true_false_string*) hfinfo->strings;
|
|
}
|
|
|
|
value = fvalue_get_integer(fi->value);
|
|
if (hfinfo->bitmask) {
|
|
/* Figure out the bit width */
|
|
bitwidth = hfinfo_bitwidth(hfinfo);
|
|
|
|
/* Un-shift bits */
|
|
unshifted_value = value;
|
|
if (hfinfo->bitshift > 0) {
|
|
unshifted_value <<= hfinfo->bitshift;
|
|
}
|
|
|
|
/* Create the bitfield first */
|
|
p = decode_bitfield_value(label_str, unshifted_value, hfinfo->bitmask, bitwidth);
|
|
bitfield_byte_length = p - label_str;
|
|
}
|
|
|
|
/* Fill in the textual info */
|
|
snprintf(p, ITEM_LABEL_LENGTH - bitfield_byte_length,
|
|
"%s: %s", hfinfo->name,
|
|
value ? tfstring->true_string : tfstring->false_string);
|
|
}
|
|
|
|
|
|
/* Fills data for bitfield ints with val_strings */
|
|
static void
|
|
fill_label_enumerated_bitfield(field_info *fi, gchar *label_str)
|
|
{
|
|
char *format = NULL, *p;
|
|
int bitfield_byte_length, bitwidth;
|
|
guint32 unshifted_value;
|
|
guint32 value;
|
|
|
|
header_field_info *hfinfo = fi->hfinfo;
|
|
|
|
/* Figure out the bit width */
|
|
bitwidth = hfinfo_bitwidth(hfinfo);
|
|
|
|
/* Pick the proper format string */
|
|
format = hfinfo_uint_vals_format(hfinfo);
|
|
|
|
/* Un-shift bits */
|
|
unshifted_value = fvalue_get_integer(fi->value);
|
|
value = unshifted_value;
|
|
if (hfinfo->bitshift > 0) {
|
|
unshifted_value <<= hfinfo->bitshift;
|
|
}
|
|
|
|
/* Create the bitfield first */
|
|
p = decode_bitfield_value(label_str, unshifted_value, hfinfo->bitmask, bitwidth);
|
|
bitfield_byte_length = p - label_str;
|
|
|
|
/* Fill in the textual info using stored (shifted) value */
|
|
snprintf(p, ITEM_LABEL_LENGTH - bitfield_byte_length,
|
|
format, hfinfo->name,
|
|
val_to_str(value, cVALS(hfinfo->strings), "Unknown"), value);
|
|
}
|
|
|
|
static void
|
|
fill_label_numeric_bitfield(field_info *fi, gchar *label_str)
|
|
{
|
|
char *format = NULL, *p;
|
|
int bitfield_byte_length, bitwidth;
|
|
guint32 unshifted_value;
|
|
guint32 value;
|
|
|
|
header_field_info *hfinfo = fi->hfinfo;
|
|
|
|
/* Figure out the bit width */
|
|
bitwidth = hfinfo_bitwidth(hfinfo);
|
|
|
|
/* Pick the proper format string */
|
|
format = hfinfo_uint_format(hfinfo);
|
|
|
|
/* Un-shift bits */
|
|
unshifted_value = fvalue_get_integer(fi->value);
|
|
value = unshifted_value;
|
|
if (hfinfo->bitshift > 0) {
|
|
unshifted_value <<= hfinfo->bitshift;
|
|
}
|
|
|
|
/* Create the bitfield using */
|
|
p = decode_bitfield_value(label_str, unshifted_value, hfinfo->bitmask, bitwidth);
|
|
bitfield_byte_length = p - label_str;
|
|
|
|
/* Fill in the textual info using stored (shifted) value */
|
|
snprintf(p, ITEM_LABEL_LENGTH - bitfield_byte_length,
|
|
format, hfinfo->name, value);
|
|
}
|
|
|
|
static void
|
|
fill_label_enumerated_uint(field_info *fi, gchar *label_str)
|
|
{
|
|
char *format = NULL;
|
|
header_field_info *hfinfo = fi->hfinfo;
|
|
guint32 value;
|
|
|
|
/* Pick the proper format string */
|
|
format = hfinfo_uint_vals_format(hfinfo);
|
|
|
|
value = fvalue_get_integer(fi->value);
|
|
|
|
/* Fill in the textual info */
|
|
snprintf(label_str, ITEM_LABEL_LENGTH,
|
|
format, hfinfo->name,
|
|
val_to_str(value, cVALS(hfinfo->strings), "Unknown"), value);
|
|
}
|
|
|
|
static void
|
|
fill_label_uint(field_info *fi, gchar *label_str)
|
|
{
|
|
char *format = NULL;
|
|
header_field_info *hfinfo = fi->hfinfo;
|
|
guint32 value;
|
|
|
|
/* Pick the proper format string */
|
|
format = hfinfo_uint_format(hfinfo);
|
|
value = fvalue_get_integer(fi->value);
|
|
|
|
/* Fill in the textual info */
|
|
snprintf(label_str, ITEM_LABEL_LENGTH,
|
|
format, hfinfo->name, value);
|
|
}
|
|
|
|
static void
|
|
fill_label_enumerated_int(field_info *fi, gchar *label_str)
|
|
{
|
|
char *format = NULL;
|
|
header_field_info *hfinfo = fi->hfinfo;
|
|
guint32 value;
|
|
|
|
/* Pick the proper format string */
|
|
format = hfinfo_int_vals_format(hfinfo);
|
|
value = fvalue_get_integer(fi->value);
|
|
|
|
/* Fill in the textual info */
|
|
snprintf(label_str, ITEM_LABEL_LENGTH,
|
|
format, hfinfo->name,
|
|
val_to_str(value, cVALS(hfinfo->strings), "Unknown"), value);
|
|
}
|
|
|
|
static void
|
|
fill_label_int(field_info *fi, gchar *label_str)
|
|
{
|
|
char *format = NULL;
|
|
header_field_info *hfinfo = fi->hfinfo;
|
|
guint32 value;
|
|
|
|
/* Pick the proper format string */
|
|
format = hfinfo_int_format(hfinfo);
|
|
value = fvalue_get_integer(fi->value);
|
|
|
|
/* Fill in the textual info */
|
|
snprintf(label_str, ITEM_LABEL_LENGTH,
|
|
format, hfinfo->name, value);
|
|
}
|
|
|
|
int
|
|
hfinfo_bitwidth(header_field_info *hfinfo)
|
|
{
|
|
int bitwidth = 0;
|
|
|
|
if (!hfinfo->bitmask) {
|
|
return 0;
|
|
}
|
|
|
|
switch(hfinfo->type) {
|
|
case FT_UINT8:
|
|
case FT_INT8:
|
|
bitwidth = 8;
|
|
break;
|
|
case FT_UINT16:
|
|
case FT_INT16:
|
|
bitwidth = 16;
|
|
break;
|
|
case FT_UINT24:
|
|
case FT_INT24:
|
|
bitwidth = 24;
|
|
break;
|
|
case FT_UINT32:
|
|
case FT_INT32:
|
|
bitwidth = 32;
|
|
break;
|
|
case FT_BOOLEAN:
|
|
bitwidth = hfinfo->display; /* hacky? :) */
|
|
break;
|
|
default:
|
|
g_assert_not_reached();
|
|
;
|
|
}
|
|
return bitwidth;
|
|
}
|
|
|
|
static char*
|
|
hfinfo_uint_vals_format(header_field_info *hfinfo)
|
|
{
|
|
char *format = NULL;
|
|
|
|
switch(hfinfo->display) {
|
|
case BASE_DEC:
|
|
case BASE_BIN: /* I'm lazy */
|
|
format = "%s: %s (%u)";
|
|
break;
|
|
case BASE_OCT: /* I'm lazy */
|
|
format = "%s: %s (%o)";
|
|
break;
|
|
case BASE_HEX:
|
|
switch(hfinfo->type) {
|
|
case FT_UINT8:
|
|
format = "%s: %s (0x%02x)";
|
|
break;
|
|
case FT_UINT16:
|
|
format = "%s: %s (0x%04x)";
|
|
break;
|
|
case FT_UINT24:
|
|
format = "%s: %s (0x%06x)";
|
|
break;
|
|
case FT_UINT32:
|
|
format = "%s: %s (0x%08x)";
|
|
break;
|
|
default:
|
|
g_assert_not_reached();
|
|
;
|
|
}
|
|
break;
|
|
default:
|
|
g_assert_not_reached();
|
|
;
|
|
}
|
|
return format;
|
|
}
|
|
|
|
static char*
|
|
hfinfo_uint_format(header_field_info *hfinfo)
|
|
{
|
|
char *format = NULL;
|
|
|
|
/* Pick the proper format string */
|
|
switch(hfinfo->display) {
|
|
case BASE_DEC:
|
|
case BASE_BIN: /* I'm lazy */
|
|
format = "%s: %u";
|
|
break;
|
|
case BASE_OCT: /* I'm lazy */
|
|
format = "%s: %o";
|
|
break;
|
|
case BASE_HEX:
|
|
switch(hfinfo->type) {
|
|
case FT_UINT8:
|
|
format = "%s: 0x%02x";
|
|
break;
|
|
case FT_UINT16:
|
|
format = "%s: 0x%04x";
|
|
break;
|
|
case FT_UINT24:
|
|
format = "%s: 0x%06x";
|
|
break;
|
|
case FT_UINT32:
|
|
format = "%s: 0x%08x";
|
|
break;
|
|
default:
|
|
g_assert_not_reached();
|
|
;
|
|
}
|
|
break;
|
|
default:
|
|
g_assert_not_reached();
|
|
;
|
|
}
|
|
return format;
|
|
}
|
|
|
|
static char*
|
|
hfinfo_int_vals_format(header_field_info *hfinfo)
|
|
{
|
|
char *format = NULL;
|
|
|
|
switch(hfinfo->display) {
|
|
case BASE_DEC:
|
|
case BASE_BIN: /* I'm lazy */
|
|
format = "%s: %s (%d)";
|
|
break;
|
|
case BASE_OCT: /* I'm lazy */
|
|
format = "%s: %s (%o)";
|
|
break;
|
|
case BASE_HEX:
|
|
switch(hfinfo->type) {
|
|
case FT_INT8:
|
|
format = "%s: %s (0x%02x)";
|
|
break;
|
|
case FT_INT16:
|
|
format = "%s: %s (0x%04x)";
|
|
break;
|
|
case FT_INT24:
|
|
format = "%s: %s (0x%06x)";
|
|
break;
|
|
case FT_INT32:
|
|
format = "%s: %s (0x%08x)";
|
|
break;
|
|
default:
|
|
g_assert_not_reached();
|
|
;
|
|
}
|
|
break;
|
|
default:
|
|
g_assert_not_reached();
|
|
;
|
|
}
|
|
return format;
|
|
}
|
|
|
|
static char*
|
|
hfinfo_int_format(header_field_info *hfinfo)
|
|
{
|
|
char *format = NULL;
|
|
|
|
/* Pick the proper format string */
|
|
switch(hfinfo->display) {
|
|
case BASE_DEC:
|
|
case BASE_BIN: /* I'm lazy */
|
|
format = "%s: %d";
|
|
break;
|
|
case BASE_OCT: /* I'm lazy */
|
|
format = "%s: %o";
|
|
break;
|
|
case BASE_HEX:
|
|
switch(hfinfo->type) {
|
|
case FT_INT8:
|
|
format = "%s: 0x%02x";
|
|
break;
|
|
case FT_INT16:
|
|
format = "%s: 0x%04x";
|
|
break;
|
|
case FT_INT24:
|
|
format = "%s: 0x%06x";
|
|
break;
|
|
case FT_INT32:
|
|
format = "%s: 0x%08x";
|
|
break;
|
|
default:
|
|
g_assert_not_reached();
|
|
;
|
|
}
|
|
break;
|
|
default:
|
|
g_assert_not_reached();
|
|
;
|
|
}
|
|
return format;
|
|
}
|
|
|
|
|
|
|
|
int
|
|
proto_registrar_n(void)
|
|
{
|
|
return gpa_hfinfo->len;
|
|
}
|
|
|
|
char*
|
|
proto_registrar_get_name(int n)
|
|
{
|
|
header_field_info *hfinfo;
|
|
|
|
hfinfo = proto_registrar_get_nth(n);
|
|
if (hfinfo)
|
|
return hfinfo->name;
|
|
else
|
|
return NULL;
|
|
}
|
|
|
|
char*
|
|
proto_registrar_get_abbrev(int n)
|
|
{
|
|
header_field_info *hfinfo;
|
|
|
|
hfinfo = proto_registrar_get_nth(n);
|
|
if (hfinfo)
|
|
return hfinfo->abbrev;
|
|
else
|
|
return NULL;
|
|
}
|
|
|
|
int
|
|
proto_registrar_get_ftype(int n)
|
|
{
|
|
header_field_info *hfinfo;
|
|
|
|
hfinfo = proto_registrar_get_nth(n);
|
|
if (hfinfo)
|
|
return hfinfo->type;
|
|
else
|
|
return -1;
|
|
}
|
|
|
|
int
|
|
proto_registrar_get_parent(int n)
|
|
{
|
|
header_field_info *hfinfo;
|
|
|
|
hfinfo = proto_registrar_get_nth(n);
|
|
if (hfinfo)
|
|
return hfinfo->parent;
|
|
else
|
|
return -2;
|
|
}
|
|
|
|
gboolean
|
|
proto_registrar_is_protocol(int n)
|
|
{
|
|
header_field_info *hfinfo;
|
|
|
|
hfinfo = proto_registrar_get_nth(n);
|
|
if (hfinfo)
|
|
return (hfinfo->parent == -1 ? TRUE : FALSE);
|
|
else
|
|
return FALSE;
|
|
}
|
|
|
|
/* Returns length of field in packet (not necessarily the length
|
|
* in our internal representation, as in the case of IPv4).
|
|
* 0 means undeterminable at time of registration
|
|
* -1 means the field is not registered. */
|
|
gint
|
|
proto_registrar_get_length(int n)
|
|
{
|
|
header_field_info *hfinfo;
|
|
|
|
hfinfo = proto_registrar_get_nth(n);
|
|
if (!hfinfo)
|
|
return -1;
|
|
|
|
return ftype_length(hfinfo->type);
|
|
}
|
|
|
|
|
|
/* =================================================================== */
|
|
/* used when calling proto search functions */
|
|
typedef struct {
|
|
header_field_info *target;
|
|
int parent;
|
|
const guint8 *packet_data;
|
|
guint packet_len;
|
|
gboolean halt_on_first_hit;
|
|
GNodeTraverseFunc traverse_func; /* for traverse_subtree_for_field() */
|
|
union {
|
|
GPtrArray *ptr_array;
|
|
GNode *node;
|
|
} result;
|
|
} proto_tree_search_info;
|
|
|
|
/* Looks for a protocol at the top layer of the tree. The protocol can occur
|
|
* more than once, for those encapsulated protocols. For each protocol subtree
|
|
* that is found, the callback function is called.
|
|
*/
|
|
static void
|
|
proto_find_protocol_multi(proto_tree* tree, GNodeTraverseFunc callback,
|
|
proto_tree_search_info *sinfo)
|
|
{
|
|
g_assert(callback != NULL);
|
|
g_node_traverse((GNode*)tree, G_IN_ORDER, G_TRAVERSE_ALL, 2, callback, (gpointer*)sinfo);
|
|
}
|
|
|
|
/* Calls a traversal function for all subtrees where:
|
|
* 1. Subtree is immediate child of root node. That is, subtree is a "protocol"
|
|
* 2. Subtree has finfo such that finfo->hfinfo->id == sinfo->parent
|
|
*/
|
|
static gboolean
|
|
traverse_subtree_for_field(GNode *node, gpointer data)
|
|
{
|
|
field_info *fi = (field_info*) (node->data);
|
|
proto_tree_search_info *sinfo = (proto_tree_search_info*) data;
|
|
|
|
if (fi) { /* !fi == the top most container node which holds nothing */
|
|
if (fi->hfinfo->id == sinfo->parent) {
|
|
g_node_traverse(node, G_IN_ORDER, G_TRAVERSE_ALL, -1,
|
|
sinfo->traverse_func, sinfo);
|
|
if (sinfo->result.node)
|
|
return sinfo->halt_on_first_hit; /* halt? continue? */
|
|
}
|
|
}
|
|
return FALSE; /* keep traversing */
|
|
}
|
|
|
|
static gboolean
|
|
check_for_protocol_or_field_id(GNode *node, gpointer data)
|
|
{
|
|
field_info *fi = (field_info*) (node->data);
|
|
proto_tree_search_info *sinfo = (proto_tree_search_info*) data;
|
|
header_field_info *hfinfo;
|
|
|
|
if (fi) { /* !fi == the top most container node which holds nothing */
|
|
/* Is this field one of the fields in the specified list
|
|
* of fields? */
|
|
for (hfinfo = sinfo->target; hfinfo != NULL;
|
|
hfinfo = hfinfo->same_name_next) {
|
|
if (fi->hfinfo == hfinfo) {
|
|
sinfo->result.node = node;
|
|
return TRUE; /* halt traversal */
|
|
}
|
|
}
|
|
}
|
|
return FALSE; /* keep traversing */
|
|
}
|
|
|
|
/* Looks for a protocol or a field in a proto_tree. Returns TRUE if
|
|
* it exists anywhere, or FALSE if it exists nowhere. */
|
|
gboolean
|
|
proto_check_for_protocol_or_field(proto_tree* tree, int id)
|
|
{
|
|
proto_tree_search_info sinfo;
|
|
header_field_info *hfinfo;
|
|
|
|
hfinfo = proto_registrar_get_nth(id);
|
|
|
|
/* Find the first entry on the list of fields with the same
|
|
* name as this field. */
|
|
while (hfinfo->same_name_prev != NULL)
|
|
hfinfo = hfinfo->same_name_prev;
|
|
|
|
sinfo.target = hfinfo;
|
|
sinfo.result.node = NULL;
|
|
sinfo.parent = -1;
|
|
sinfo.traverse_func = check_for_protocol_or_field_id;
|
|
sinfo.halt_on_first_hit = TRUE;
|
|
|
|
/* do a quicker check if target is a protocol */
|
|
if (proto_registrar_is_protocol(id) == TRUE) {
|
|
proto_find_protocol_multi(tree, check_for_protocol_or_field_id, &sinfo);
|
|
}
|
|
else {
|
|
/* find the field's parent protocol */
|
|
sinfo.parent = proto_registrar_get_parent(id);
|
|
|
|
/* Go through each protocol subtree, checking if the protocols
|
|
* is the parent protocol of the field that we're looking for.
|
|
* We may have protocols that occur more than once (e.g., IP in IP),
|
|
* so we do indeed have to check all protocol subtrees, looking
|
|
* for the parent protocol. That's why proto_find_protocol()
|
|
* is not used --- it assumes a protocol occurs only once. */
|
|
g_node_traverse((GNode*)tree, G_IN_ORDER, G_TRAVERSE_ALL, 2,
|
|
traverse_subtree_for_field, &sinfo);
|
|
}
|
|
|
|
if (sinfo.result.node)
|
|
return TRUE;
|
|
else
|
|
return FALSE;
|
|
}
|
|
|
|
|
|
|
|
static gboolean
|
|
get_finfo_ptr_array(GNode *node, gpointer data)
|
|
{
|
|
field_info *fi = (field_info*) (node->data);
|
|
proto_tree_search_info *sinfo = (proto_tree_search_info*) data;
|
|
header_field_info *hfinfo;
|
|
|
|
if (fi) { /* !fi == the top most container node which holds nothing */
|
|
/* Is this field one of the fields in the specified list
|
|
* of fields? */
|
|
for (hfinfo = sinfo->target; hfinfo != NULL;
|
|
hfinfo = hfinfo->same_name_next) {
|
|
if (fi->hfinfo == hfinfo) {
|
|
if (!sinfo->result.ptr_array) {
|
|
sinfo->result.ptr_array = g_ptr_array_new();
|
|
}
|
|
g_ptr_array_add(sinfo->result.ptr_array,
|
|
(gpointer)fi);
|
|
return FALSE; /* keep traversing */
|
|
}
|
|
}
|
|
}
|
|
return FALSE; /* keep traversing */
|
|
}
|
|
|
|
/* Return GPtrArray* of field_info pointers for all hfindex that appear in tree
|
|
* (we assume that a field will only appear under its registered parent's subtree) */
|
|
GPtrArray*
|
|
proto_get_finfo_ptr_array(proto_tree *tree, int id)
|
|
{
|
|
proto_tree_search_info sinfo;
|
|
header_field_info *hfinfo;
|
|
|
|
hfinfo = proto_registrar_get_nth(id);
|
|
|
|
/* Find the first entry on the list of fields with the same
|
|
* name as this field. */
|
|
while (hfinfo->same_name_prev != NULL)
|
|
hfinfo = hfinfo->same_name_prev;
|
|
|
|
sinfo.target = hfinfo;
|
|
sinfo.result.ptr_array = NULL;
|
|
sinfo.parent = -1;
|
|
sinfo.traverse_func = get_finfo_ptr_array;
|
|
sinfo.halt_on_first_hit = FALSE;
|
|
|
|
/* do a quicker check if target is a protocol */
|
|
if (proto_registrar_is_protocol(id) == TRUE) {
|
|
proto_find_protocol_multi(tree, get_finfo_ptr_array, &sinfo);
|
|
}
|
|
else {
|
|
/* find the field's parent protocol */
|
|
sinfo.parent = proto_registrar_get_parent(id);
|
|
|
|
/* Go through each protocol subtree, checking if the protocols
|
|
* is the parent protocol of the field that we're looking for.
|
|
* We may have protocols that occur more than once (e.g., IP in IP),
|
|
* so we do indeed have to check all protocol subtrees, looking
|
|
* for the parent protocol. That's why proto_find_protocol()
|
|
* is not used --- it assumes a protocol occurs only once. */
|
|
sinfo.traverse_func = get_finfo_ptr_array;
|
|
g_node_traverse((GNode*)tree, G_IN_ORDER, G_TRAVERSE_ALL, 2,
|
|
traverse_subtree_for_field, &sinfo);
|
|
}
|
|
|
|
return sinfo.result.ptr_array;
|
|
}
|
|
|
|
|
|
|
|
typedef struct {
|
|
guint offset;
|
|
field_info *finfo;
|
|
gchar *name;
|
|
} offset_search_t;
|
|
|
|
static gboolean
|
|
check_for_offset(GNode *node, gpointer data)
|
|
{
|
|
field_info *fi = node->data;
|
|
offset_search_t *offsearch = data;
|
|
|
|
/* !fi == the top most container node which holds nothing */
|
|
if (fi && fi->visible && !strcmp( offsearch->name,fi->ds_name)) {
|
|
if (offsearch->offset >= fi->start &&
|
|
offsearch->offset < (fi->start + fi->length)) {
|
|
|
|
offsearch->finfo = fi;
|
|
return FALSE; /* keep traversing */
|
|
}
|
|
}
|
|
return FALSE; /* keep traversing */
|
|
}
|
|
|
|
/* Search a proto_tree backwards (from leaves to root) looking for the field
|
|
* whose start/length occupies 'offset' */
|
|
/* XXX - I couldn't find an easy way to search backwards, so I search
|
|
* forwards, w/o stopping. Therefore, the last finfo I find will the be
|
|
* the one I want to return to the user. This algorithm is inefficient
|
|
* and could be re-done, but I'd have to handle all the children and
|
|
* siblings of each node myself. When I have more time I'll do that.
|
|
* (yeah right) */
|
|
field_info*
|
|
proto_find_field_from_offset(proto_tree *tree, guint offset, char* ds_name)
|
|
{
|
|
offset_search_t offsearch;
|
|
|
|
offsearch.offset = offset;
|
|
offsearch.finfo = NULL;
|
|
offsearch.name = ds_name;
|
|
|
|
g_node_traverse((GNode*)tree, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
|
|
check_for_offset, &offsearch);
|
|
|
|
return offsearch.finfo;
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/* Dumps the contents of the registration database to stdout. An indepedent program can take
|
|
* this output and format it into nice tables or HTML or whatever.
|
|
*
|
|
* There is one record per line. Each record is either a protocol or a header
|
|
* field, differentiated by the first field. The fields are tab-delimited.
|
|
*
|
|
* Protocols
|
|
* ---------
|
|
* Field 1 = 'P'
|
|
* Field 2 = protocol name
|
|
* Field 3 = protocol abbreviation
|
|
*
|
|
* Header Fields
|
|
* -------------
|
|
* Field 1 = 'F'
|
|
* Field 2 = field name
|
|
* Field 3 = field abbreviation
|
|
* Field 4 = type ( textual representation of the the ftenum type )
|
|
* Field 5 = parent protocol abbreviation
|
|
*/
|
|
void
|
|
proto_registrar_dump(void)
|
|
{
|
|
header_field_info *hfinfo, *parent_hfinfo;
|
|
int i, len;
|
|
const char *enum_name;
|
|
|
|
len = gpa_hfinfo->len;
|
|
for (i = 0; i < len ; i++) {
|
|
hfinfo = proto_registrar_get_nth(i);
|
|
|
|
/*
|
|
* Skip fields with zero-length names or abbreviations;
|
|
* the pseudo-field for "proto_tree_add_text()" is such
|
|
* a field, and we don't want it in the list of filterable
|
|
* fields.
|
|
*
|
|
*
|
|
* XXX - perhaps the name and abbrev field should be null
|
|
* pointers rather than null strings for that pseudo-field,
|
|
* but we'd have to add checks for null pointers in some
|
|
* places if we did that.
|
|
*
|
|
* Or perhaps protocol tree items added with
|
|
* "proto_tree_add_text()" should have -1 as the field index,
|
|
* with no pseudo-field being used, but that might also
|
|
* require special checks for -1 to be added.
|
|
*/
|
|
if (strlen(hfinfo->name) == 0 || strlen(hfinfo->abbrev) == 0)
|
|
continue;
|
|
|
|
/* format for protocols */
|
|
if (proto_registrar_is_protocol(i)) {
|
|
printf("P\t%s\t%s\n", hfinfo->name, hfinfo->abbrev);
|
|
}
|
|
/* format for header fields */
|
|
else {
|
|
/*
|
|
* If this field isn't at the head of the list of
|
|
* fields with this name, skip this field - all
|
|
* fields with the same name are really just versions
|
|
* of the same field stored in different bits, and
|
|
* should have the same type/radix/value list, and
|
|
* just differ in their bit masks. (If a field isn't
|
|
* a bitfield, but can be, say, 1 or 2 bytes long,
|
|
* it can just be made FT_UINT16, meaning the
|
|
* *maximum* length is 2 bytes, and be used
|
|
* for all lengths.)
|
|
*/
|
|
if (hfinfo->same_name_prev != NULL)
|
|
continue;
|
|
|
|
parent_hfinfo = proto_registrar_get_nth(hfinfo->parent);
|
|
g_assert(parent_hfinfo);
|
|
|
|
enum_name = ftype_name(hfinfo->type);
|
|
printf("F\t%s\t%s\t%s\t%s\n", hfinfo->name, hfinfo->abbrev,
|
|
enum_name,parent_hfinfo->abbrev);
|
|
}
|
|
}
|
|
}
|
|
|
|
static char*
|
|
hfinfo_numeric_format(header_field_info *hfinfo)
|
|
{
|
|
char *format = NULL;
|
|
|
|
/* Pick the proper format string */
|
|
switch(hfinfo->display) {
|
|
case BASE_DEC:
|
|
case BASE_OCT: /* I'm lazy */
|
|
case BASE_BIN: /* I'm lazy */
|
|
switch(hfinfo->type) {
|
|
case FT_UINT8:
|
|
case FT_UINT16:
|
|
case FT_UINT24:
|
|
case FT_UINT32:
|
|
format = "%s == %u";
|
|
break;
|
|
case FT_INT8:
|
|
case FT_INT16:
|
|
case FT_INT24:
|
|
case FT_INT32:
|
|
format = "%s == %d";
|
|
break;
|
|
default:
|
|
g_assert_not_reached();
|
|
;
|
|
}
|
|
break;
|
|
case BASE_HEX:
|
|
switch(hfinfo->type) {
|
|
case FT_UINT8:
|
|
format = "%s == 0x%02x";
|
|
break;
|
|
case FT_UINT16:
|
|
format = "%s == 0x%04x";
|
|
break;
|
|
case FT_UINT24:
|
|
format = "%s == 0x%06x";
|
|
break;
|
|
case FT_UINT32:
|
|
format = "%s == 0x%08x";
|
|
break;
|
|
default:
|
|
g_assert_not_reached();
|
|
;
|
|
}
|
|
break;
|
|
default:
|
|
g_assert_not_reached();
|
|
;
|
|
}
|
|
return format;
|
|
}
|
|
|
|
char*
|
|
proto_alloc_dfilter_string(field_info *finfo, guint8 *pd)
|
|
{
|
|
header_field_info *hfinfo;
|
|
int abbrev_len;
|
|
char *buf, *stringified, *format, *ptr;
|
|
int dfilter_len, i;
|
|
guint8 *c;
|
|
|
|
hfinfo = finfo->hfinfo;
|
|
g_assert(hfinfo);
|
|
abbrev_len = strlen(hfinfo->abbrev);
|
|
|
|
switch(hfinfo->type) {
|
|
|
|
case FT_BOOLEAN:
|
|
dfilter_len = abbrev_len + 6;
|
|
buf = g_malloc0(dfilter_len);
|
|
snprintf(buf, dfilter_len, "%s == %s",
|
|
hfinfo->abbrev,
|
|
fvalue_get_integer(finfo->value) ? "1" : "0");
|
|
break;
|
|
|
|
case FT_UINT8:
|
|
case FT_UINT16:
|
|
case FT_UINT24:
|
|
case FT_UINT32:
|
|
case FT_INT8:
|
|
case FT_INT16:
|
|
case FT_INT24:
|
|
case FT_INT32:
|
|
dfilter_len = abbrev_len + 20;
|
|
buf = g_malloc0(dfilter_len);
|
|
format = hfinfo_numeric_format(hfinfo);
|
|
snprintf(buf, dfilter_len, format, hfinfo->abbrev, fvalue_get_integer(finfo->value));
|
|
break;
|
|
|
|
case FT_IPv4:
|
|
dfilter_len = abbrev_len + 4 + 15 + 1;
|
|
buf = g_malloc0(dfilter_len);
|
|
snprintf(buf, dfilter_len, "%s == %s", hfinfo->abbrev,
|
|
ipv4_addr_str(fvalue_get(finfo->value)));
|
|
break;
|
|
|
|
case FT_IPXNET:
|
|
dfilter_len = abbrev_len + 15;
|
|
buf = g_malloc0(dfilter_len);
|
|
snprintf(buf, dfilter_len, "%s == 0x%08x", hfinfo->abbrev,
|
|
fvalue_get_integer(finfo->value));
|
|
break;
|
|
|
|
case FT_IPv6:
|
|
stringified = ip6_to_str((struct e_in6_addr*) fvalue_get(finfo->value));
|
|
dfilter_len = abbrev_len + 4 + strlen(stringified) + 1;
|
|
buf = g_malloc0(dfilter_len);
|
|
snprintf(buf, dfilter_len, "%s == %s", hfinfo->abbrev,
|
|
stringified);
|
|
break;
|
|
|
|
case FT_DOUBLE:
|
|
dfilter_len = abbrev_len + 30;
|
|
buf = g_malloc0(dfilter_len);
|
|
snprintf(buf, dfilter_len, "%s == %f", hfinfo->abbrev,
|
|
fvalue_get_floating(finfo->value));
|
|
break;
|
|
|
|
case FT_ETHER:
|
|
dfilter_len = abbrev_len + 22;
|
|
buf = g_malloc0(dfilter_len);
|
|
snprintf(buf, dfilter_len, "%s == %s",
|
|
hfinfo->abbrev,
|
|
ether_to_str(fvalue_get(finfo->value)));
|
|
break;
|
|
#if 0
|
|
|
|
case FT_ABSOLUTE_TIME:
|
|
case FT_RELATIVE_TIME:
|
|
memcpy(&fi->value.time, va_arg(ap, struct timeval*),
|
|
sizeof(struct timeval));
|
|
break;
|
|
|
|
case FT_TEXT_ONLY:
|
|
; /* nothing */
|
|
break;
|
|
#endif
|
|
|
|
case FT_STRING:
|
|
dfilter_len = abbrev_len +
|
|
strlen(fvalue_get(finfo->value)) + 7;
|
|
buf = g_malloc0(dfilter_len);
|
|
snprintf(buf, dfilter_len, "%s == \"%s\"",
|
|
hfinfo->abbrev, (char*)fvalue_get(finfo->value));
|
|
break;
|
|
|
|
case FT_BYTES:
|
|
dfilter_len = finfo->length*3 - 1;
|
|
dfilter_len += abbrev_len + 7;
|
|
buf = g_malloc0(dfilter_len);
|
|
snprintf(buf, dfilter_len, "%s == %s",
|
|
hfinfo->abbrev,
|
|
bytes_to_str_punct(fvalue_get(finfo->value), finfo->length,':'));
|
|
break;
|
|
default:
|
|
c = pd + finfo->start;
|
|
buf = g_malloc0(32 + finfo->length * 3);
|
|
ptr = buf;
|
|
|
|
sprintf(ptr, "frame[%d] == ", finfo->start);
|
|
ptr = buf+strlen(buf);
|
|
|
|
for (i=0;i<finfo->length; i++) {
|
|
if (i == 0 ) {
|
|
sprintf(ptr, "%02x", *c++);
|
|
}
|
|
else {
|
|
sprintf(ptr, ":%02x", *c++);
|
|
}
|
|
ptr = buf+strlen(buf);
|
|
}
|
|
break;
|
|
}
|
|
|
|
return buf;
|
|
}
|