978 lines
32 KiB
C
978 lines
32 KiB
C
/*
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* k12.c
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*
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* routines for importing tektronix k12xx *.rf5 files
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*
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* Copyright (c) 2005, Luis E. Garia Ontanon <luis.ontanon@gmail.com>
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*
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* $Id$
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*
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* Wiretap Library
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* Copyright (c) 1998 by Gilbert Ramirez <gram@alumni.rice.edu>
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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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/* #define DEBUG_K12 */
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include "wtap-int.h"
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#include "wtap.h"
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#include "file_wrappers.h"
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#include "buffer.h"
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#include "k12.h"
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/*#define DEBUG_K12*/
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#ifdef DEBUG_K12
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#include <stdio.h>
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#include <ctype.h>
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#include <stdarg.h>
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FILE* dbg_out = NULL;
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char* env_file = NULL;
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static unsigned debug_level = 0;
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void k12_fprintf(char* fmt, ...) {
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va_list ap;
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va_start(ap,fmt);
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vfprintf(dbg_out, fmt, ap);
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va_end(ap);
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}
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#define CAT(a,b) a##b
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#define K12_DBG(level,args) do { if (level <= debug_level) { \
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fprintf(dbg_out,"%s:%d: ",CAT(__FI,LE__),CAT(__LI,NE__)); \
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k12_fprintf args ; \
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fprintf(dbg_out,"\n"); \
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} } while(0)
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void k12_hexdump(guint level, gint64 offset, char* label, unsigned char* b, unsigned len) {
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static const char* c2t[] = {
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"00","01","02","03","04","05","06","07","08","09","0a","0b","0c","0d","0e","0f",
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"10","11","12","13","14","15","16","17","18","19","1a","1b","1c","1d","1e","1f",
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"20","21","22","23","24","25","26","27","28","29","2a","2b","2c","2d","2e","2f",
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"30","31","32","33","34","35","36","37","38","39","3a","3b","3c","3d","3e","3f",
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"40","41","42","43","44","45","46","47","48","49","4a","4b","4c","4d","4e","4f",
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"50","51","52","53","54","55","56","57","58","59","5a","5b","5c","5d","5e","5f",
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"60","61","62","63","64","65","66","67","68","69","6a","6b","6c","6d","6e","6f",
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"70","71","72","73","74","75","76","77","78","79","7a","7b","7c","7d","7e","7f",
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"80","81","82","83","84","85","86","87","88","89","8a","8b","8c","8d","8e","8f",
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"90","91","92","93","94","95","96","97","98","99","9a","9b","9c","9d","9e","9f",
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"a0","a1","a2","a3","a4","a5","a6","a7","a8","a9","aa","ab","ac","ad","ae","af",
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"b0","b1","b2","b3","b4","b5","b6","b7","b8","b9","ba","bb","bc","bd","be","bf",
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"c0","c1","c2","c3","c4","c5","c6","c7","c8","c9","ca","cb","cc","cd","ce","cf",
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"d0","d1","d2","d3","d4","d5","d6","d7","d8","d9","da","db","dc","dd","de","df",
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"e0","e1","e2","e3","e4","e5","e6","e7","e8","e9","ea","eb","ec","ed","ee","ef",
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"f0","f1","f2","f3","f4","f5","f6","f7","f8","f9","fa","fb","fc","fd","fe","ff"
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};
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unsigned i;
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if (debug_level < level) return;
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fprintf(dbg_out,"%s(%.8llx,%.4x): ",label,offset,len);
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for (i=0 ; i<len ; i++) {
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if (!(i%32))
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fprintf(dbg_out,"\n");
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else if (!(i%4))
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fprintf(dbg_out," ");
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fprintf(dbg_out,c2t[b[i]]);
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}
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fprintf(dbg_out,"\n");
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}
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#define K12_HEXDMP(x,a,b,c,d) k12_hexdump(x,a,b,c,d)
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#else
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#define K12_DBG(level,args) (void)0
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#define K12_HEXDMP(x,a,b,c,d)
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#endif
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/*
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* the 32 bits .rf5 file contains:
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* an 8 byte magic number
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* 32bit length
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* 32bit number of records
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* other 0x200 bytes bytes of uncharted territory
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* 1 or more copies of the num_of_records in there
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* the records whose first 32bits word is the length
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* they are stuffed by one to four words every 0x2000 bytes
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* and a 2 byte terminator FFFF
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*/
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static const guint8 k12_file_magic[] = { 0x00, 0x00, 0x02, 0x00 ,0x12, 0x05, 0x00, 0x10 };
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struct _k12_t {
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guint32 file_len;
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guint32 num_of_records; /* XXX: not sure about this */
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GHashTable* src_by_id; /* k12_srcdsc_recs by input */
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GHashTable* src_by_name; /* k12_srcdsc_recs by stack_name */
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Buffer extra_info; /* Buffer to hold per packet extra information */
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};
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typedef struct _k12_src_desc_t {
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guint32 input;
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guint32 input_type;
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gchar* input_name;
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gchar* stack_file;
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k12_input_info_t input_info;
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} k12_src_desc_t;
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/* so far we've seen these types of records */
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#define K12_REC_PACKET 0x00010020 /* an actual packet */
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#define K12_REC_SRCDSC 0x00070041 /* port-stack mapping + more, the key of the whole thing */
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#define K12_REC_SCENARIO 0x00070040 /* what appears as the window's title */
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#define K12_REC_STK_FILE 0x00070042 /* a dump of an stk file */
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#define K12_REC_SRCDSC2 0x00070043 /* another port-stack mapping */
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#define K12_REC_TEXT 0x00070044 /* a string containing something with a grammar (conditions/responses?) */
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#define K12_REC_START 0x00020030 /* a string containing human readable start time */
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#define K12_REC_STOP 0x00020031 /* a string containing human readable stop time */
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#define K12_MASK_PACKET 0xfffffff0 /* the last nibble in packet records somentimes change (not yet understood why) */
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/* offsets of elements in the records */
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#define K12_RECORD_LEN 0x0 /* uint32, in bytes */
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#define K12_RECORD_TYPE 0x4 /* uint32, see above */
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#define K12_RECORD_FRAME_LEN 0x8 /* uint32, in bytes */
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#define K12_RECORD_SRC_ID 0xc /* uint32 */
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/*
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* Some records from K15 files have a port ID of an undeclared
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* interface which happens to be the only one with the first byte changed.
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* It is still unknown how to recognize when this happens.
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* If the lookup of the interface record fails we'll mask it
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* and retry.
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*/
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#define K12_RECORD_SRC_ID_MASK 0x00ffffff
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/* elements of packet records */
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#define K12_PACKET_TIMESTAMP 0x18 /* int64 (8b) representing 1/2us since 01-01-1990 Z00:00:00 */
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#define K12_PACKET_FRAME 0x20 /* start of the actual frame in the record */
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#define K12_PACKET_OFFSET_VP 0x08 /* 2 bytes, big endian */
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#define K12_PACKET_OFFSET_VC 0x0a /* 2 bytes, big endian */
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#define K12_PACKET_OFFSET_CID 0x0c /* 1 byte */
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/* elements of the source description records */
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#define K12_SRCDESC_COLOR_FOREGROUND 0x12 /* 1 byte */
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#define K12_SRCDESC_COLOR_BACKGROUND 0x13 /* 1 byte */
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#define K12_SRCDESC_PORT_TYPE 0x1a /* 1 byte */
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#define K12_SRCDESC_EXTRALEN 0x1e /* uint16, big endian */
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#define K12_SRCDESC_NAMELEN 0x20 /* uint16, big endian */
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#define K12_SRCDESC_STACKLEN 0x22 /* uint16, big endian */
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#define K12_SRCDESC_EXTRATYPE 0x24 /* uint32, big endian */
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#define K12_SRCDESC_ATM_VPI 0x38 /* uint16, big endian */
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#define K12_SRCDESC_ATM_VCI 0x3a /* uint16, big endian */
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#define K12_SRCDESC_ATM_AAL 0x3c /* 1 byte */
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#define K12_SRCDESC_DS0_MASK 0x3c /* 1 byte */
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/*
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* get_record: Get the next record into a buffer
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* Every about 0x2000 bytes 0x10 bytes are inserted in the file,
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* even in the middle of a record.
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* This reads the next record without the eventual 0x10 bytes.
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* returns the length of the record + the stuffing (if any)
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*
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* XXX: works at most with 0x1FFF bytes per record
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*/
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static gint get_record(guint8** bufferp, FILE* fh, gint64 file_offset) {
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static guint8* buffer = NULL;
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static guint buffer_len = 0x2000 ;
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guint read;
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guint last_read;
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guint actual_len, left;
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guint8 junk[0x14];
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guint8* writep;
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/* where the next unknown 0x10 bytes are stuffed to the file */
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guint junky_offset = 0x2000 - (gint) ( (file_offset - 0x200) % 0x2000 );
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K12_DBG(6,("get_record: ENTER: junky_offset=%" G_GINT64_MODIFIER "d, file_offset=%" G_GINT64_MODIFIER "d",junky_offset,file_offset));
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/* no buffer is given, lets create it */
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if (buffer == NULL) {
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buffer = g_malloc(0x2000);
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buffer_len = 0x2000;
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}
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*bufferp = buffer;
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if ( junky_offset == 0x2000 ) {
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/* the length of the record is 0x10 bytes ahead from we are reading */
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read = file_read(junk,1,0x14,fh);
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if (read == 2 && junk[0] == 0xff && junk[1] == 0xff) {
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K12_DBG(1,("get_record: EOF"));
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return 0;
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} else if ( read < 0x14 ){
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K12_DBG(1,("get_record: SHORT READ"));
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return -1;
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}
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memcpy(buffer,&(junk[0x10]),4);
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} else {
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/* the length of the record is right where we are reading */
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read = file_read(buffer,1, 0x4, fh);
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if (read == 2 && buffer[0] == 0xff && buffer[1] == 0xff) {
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K12_DBG(1,("get_record: EOF"));
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return 0;
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} else if ( read != 0x4 ) {
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K12_DBG(1,("get_record: SHORT READ"));
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return -1;
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}
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}
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actual_len = left = pntohl(buffer);
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junky_offset -= 0x4;
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K12_DBG(5,("get_record: GET length=%d",left));
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g_assert(left >= 4);
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while (left > buffer_len) *bufferp = buffer = g_realloc(buffer,buffer_len*=2);
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writep = buffer + 4;
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left -= 4;
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do {
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K12_DBG(6,("get_record: looping left=%d junky_offset=%" G_GINT64_MODIFIER "d",left,junky_offset));
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if (junky_offset > left) {
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read += last_read = file_read(writep,1, left, fh);
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if ( last_read != left ) {
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K12_DBG(1,("get_record: SHORT READ"));
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return -1;
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} else {
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K12_HEXDMP(5,file_offset, "GOT record", buffer, actual_len);
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return read;
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}
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} else {
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read += last_read = file_read(writep,1, junky_offset, fh);
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if ( last_read != junky_offset ) {
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K12_DBG(1,("get_record: SHORT READ, read=%d expected=%d",last_read, junky_offset));
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return -1;
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}
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writep += last_read;
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read += last_read = file_read(junk,1, 0x10, fh);
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if ( last_read != 0x10 ) {
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K12_DBG(1,("get_record: SHORT READ"));
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return -1;
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}
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left -= junky_offset;
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junky_offset = 0x2000;
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}
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} while(left);
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K12_HEXDMP(5,file_offset, "GOT record", buffer, actual_len);
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return read;
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}
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static gboolean k12_read(wtap *wth, int *err, gchar **err_info _U_, gint64 *data_offset) {
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k12_src_desc_t* src_desc;
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guint8* buffer = NULL;
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gint64 offset;
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long len;
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guint32 type;
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guint32 src_id;
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guint64 ts;
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guint32 extra_len;
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offset = wth->data_offset;
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/* ignore the record if it isn't a packet */
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do {
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K12_DBG(5,("k12_read: offset=%i",offset));
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*data_offset = offset;
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len = get_record(&buffer, wth->fh, offset);
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if (len < 0) {
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*err = WTAP_ERR_SHORT_READ;
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return FALSE;
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} else if (len == 0) {
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*err = 0;
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return FALSE;
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}
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type = pntohl(buffer + K12_RECORD_TYPE);
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src_id = pntohl(buffer + K12_RECORD_SRC_ID);
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if ( ! (src_desc = g_hash_table_lookup(wth->capture.k12->src_by_id,GUINT_TO_POINTER(src_id))) ) {
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/*
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* Some records from K15 files have a port ID of an undeclared
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* interface which happens to be the only one with the first byte changed.
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* It is still unknown how to recognize when this happens.
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* If the lookup of the interface record fails we'll mask it
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* and retry.
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*/
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src_desc = g_hash_table_lookup(wth->capture.k12->src_by_id,GUINT_TO_POINTER(src_id&K12_RECORD_SRC_ID_MASK));
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}
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K12_DBG(5,("k12_read: record type=%x src_id=%x",type,src_id));
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offset += len;
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} while ( ((type & K12_MASK_PACKET) != K12_REC_PACKET) || !src_id || !src_desc );
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wth->data_offset = offset;
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ts = pntohll(buffer + K12_PACKET_TIMESTAMP);
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wth->phdr.ts.secs = (guint32) ((ts / 2000000) + 631152000);
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wth->phdr.ts.nsecs = (guint32) ( (ts % 2000000) * 500 );
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K12_DBG(3,("k12_read: PACKET RECORD type=%x src_id=%x secs=%u nsecs=%u",type,src_id, wth->phdr.ts.secs,wth->phdr.ts.nsecs));
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wth->phdr.len = wth->phdr.caplen = pntohl(buffer + K12_RECORD_FRAME_LEN) & 0x00001FFF;
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extra_len = len - K12_PACKET_FRAME - wth->phdr.caplen;
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/* the frame */
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buffer_assure_space(wth->frame_buffer, wth->phdr.caplen);
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memcpy(buffer_start_ptr(wth->frame_buffer), buffer + K12_PACKET_FRAME, wth->phdr.caplen);
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/* extra information need by some protocols */
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buffer_assure_space(&(wth->capture.k12->extra_info), extra_len);
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memcpy(buffer_start_ptr(&(wth->capture.k12->extra_info)),
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buffer + K12_PACKET_FRAME + wth->phdr.caplen, extra_len);
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wth->pseudo_header.k12.extra_info = (void*)buffer_start_ptr(&(wth->capture.k12->extra_info));
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wth->pseudo_header.k12.extra_length = extra_len;
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wth->pseudo_header.k12.input = src_id;
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K12_DBG(5,("k12_read: wth->pseudo_header.k12.input=%x wth->phdr.len=%i input_name='%s' stack_file='%s' type=%x",
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wth->pseudo_header.k12.input,wth->phdr.len,src_desc->input_name,src_desc->stack_file,src_desc->input_type));\
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wth->pseudo_header.k12.input_name = src_desc->input_name;
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wth->pseudo_header.k12.stack_file = src_desc->stack_file;
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wth->pseudo_header.k12.input_type = src_desc->input_type;
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switch(src_desc->input_type) {
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case K12_PORT_ATMPVC:
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if ((long)(K12_PACKET_FRAME + wth->phdr.len + K12_PACKET_OFFSET_CID) < len) {
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wth->pseudo_header.k12.input_info.atm.vp = pntohs(buffer + (K12_PACKET_FRAME + wth->phdr.caplen + K12_PACKET_OFFSET_VP));
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wth->pseudo_header.k12.input_info.atm.vc = pntohs(buffer + (K12_PACKET_FRAME + wth->phdr.caplen + K12_PACKET_OFFSET_VC));
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wth->pseudo_header.k12.input_info.atm.cid = *((unsigned char*)(buffer + K12_PACKET_FRAME + wth->phdr.len + K12_PACKET_OFFSET_CID));
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break;
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}
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/* Fall through */
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default:
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memcpy(&(wth->pseudo_header.k12.input_info),&(src_desc->input_info),sizeof(src_desc->input_info));
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break;
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}
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wth->pseudo_header.k12.stuff = wth->capture.k12;
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return TRUE;
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}
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static gboolean k12_seek_read(wtap *wth, gint64 seek_off, union wtap_pseudo_header *pseudo_header, guchar *pd, int length, int *err _U_, gchar **err_info _U_) {
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k12_src_desc_t* src_desc;
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guint8* buffer;
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long len;
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guint32 extra_len;
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guint32 input;
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K12_DBG(5,("k12_seek_read: ENTER"));
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if ( file_seek(wth->random_fh, seek_off, SEEK_SET, err) == -1) {
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K12_DBG(5,("k12_seek_read: SEEK ERROR"));
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return FALSE;
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}
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|
|
if ((len = get_record(&buffer, wth->random_fh, seek_off)) < 1) {
|
|
K12_DBG(5,("k12_seek_read: READ ERROR"));
|
|
return FALSE;
|
|
}
|
|
|
|
memcpy(pd, buffer + K12_PACKET_FRAME, length);
|
|
|
|
extra_len = len - K12_PACKET_FRAME - length;
|
|
buffer_assure_space(&(wth->capture.k12->extra_info), extra_len);
|
|
memcpy(buffer_start_ptr(&(wth->capture.k12->extra_info)),
|
|
buffer + K12_PACKET_FRAME + length, extra_len);
|
|
wth->pseudo_header.k12.extra_info = (void*)buffer_start_ptr(&(wth->capture.k12->extra_info));
|
|
wth->pseudo_header.k12.extra_length = extra_len;
|
|
if (pseudo_header) {
|
|
pseudo_header->k12.extra_info = (void*)buffer_start_ptr(&(wth->capture.k12->extra_info));
|
|
pseudo_header->k12.extra_length = extra_len;
|
|
}
|
|
|
|
input = pntohl(buffer + K12_RECORD_SRC_ID);
|
|
K12_DBG(5,("k12_seek_read: input=%.8x",input));
|
|
|
|
if ( ! (src_desc = g_hash_table_lookup(wth->capture.k12->src_by_id,GUINT_TO_POINTER(input))) ) {
|
|
/*
|
|
* Some records from K15 files have a port ID of an undeclared
|
|
* interface which happens to be the only one with the first byte changed.
|
|
* It is still unknown how to recognize when this happens.
|
|
* If the lookup of the interface record fails we'll mask it
|
|
* and retry.
|
|
*/
|
|
src_desc = g_hash_table_lookup(wth->capture.k12->src_by_id,GUINT_TO_POINTER(input&K12_RECORD_SRC_ID_MASK));
|
|
}
|
|
|
|
if (src_desc) {
|
|
K12_DBG(5,("k12_seek_read: input_name='%s' stack_file='%s' type=%x",src_desc->input_name,src_desc->stack_file,src_desc->input_type));
|
|
if (pseudo_header) {
|
|
pseudo_header->k12.input_name = src_desc->input_name;
|
|
pseudo_header->k12.stack_file = src_desc->stack_file;
|
|
pseudo_header->k12.input_type = src_desc->input_type;
|
|
|
|
switch(src_desc->input_type) {
|
|
case K12_PORT_ATMPVC:
|
|
if ((long)(K12_PACKET_FRAME + length + K12_PACKET_OFFSET_CID) < len) {
|
|
pseudo_header->k12.input_info.atm.vp = pntohs(buffer + K12_PACKET_FRAME + length + K12_PACKET_OFFSET_VP);
|
|
pseudo_header->k12.input_info.atm.vc = pntohs(buffer + K12_PACKET_FRAME + length + K12_PACKET_OFFSET_VC);
|
|
pseudo_header->k12.input_info.atm.cid = *((unsigned char*)(buffer + K12_PACKET_FRAME + length + K12_PACKET_OFFSET_CID));
|
|
break;
|
|
}
|
|
/* Fall through */
|
|
default:
|
|
memcpy(&(pseudo_header->k12.input_info),&(src_desc->input_info),sizeof(src_desc->input_info));
|
|
break;
|
|
}
|
|
}
|
|
|
|
wth->pseudo_header.k12.input_name = src_desc->input_name;
|
|
wth->pseudo_header.k12.stack_file = src_desc->stack_file;
|
|
wth->pseudo_header.k12.input_type = src_desc->input_type;
|
|
|
|
switch(src_desc->input_type) {
|
|
case K12_PORT_ATMPVC:
|
|
if ((long)(K12_PACKET_FRAME + length + K12_PACKET_OFFSET_CID) < len) {
|
|
wth->pseudo_header.k12.input_info.atm.vp = pntohs(buffer + K12_PACKET_FRAME + length + K12_PACKET_OFFSET_VP);
|
|
wth->pseudo_header.k12.input_info.atm.vc = pntohs(buffer + K12_PACKET_FRAME + length + K12_PACKET_OFFSET_VC);
|
|
wth->pseudo_header.k12.input_info.atm.cid = *((unsigned char*)(buffer + K12_PACKET_FRAME + length + K12_PACKET_OFFSET_CID));
|
|
}
|
|
break;
|
|
/* Fall through */
|
|
default:
|
|
memcpy(&(wth->pseudo_header.k12.input_info),&(src_desc->input_info),sizeof(src_desc->input_info));
|
|
break;
|
|
}
|
|
|
|
} else {
|
|
K12_DBG(5,("k12_seek_read: NO SRC_RECORD FOUND"));
|
|
|
|
if (pseudo_header) {
|
|
memset(&(pseudo_header->k12),0,sizeof(pseudo_header->k12));
|
|
pseudo_header->k12.input_name = "unknown port";
|
|
pseudo_header->k12.stack_file = "unknown stack file";
|
|
}
|
|
|
|
memset(&(wth->pseudo_header.k12),0,sizeof(wth->pseudo_header.k12));
|
|
wth->pseudo_header.k12.input_name = "unknown port";
|
|
wth->pseudo_header.k12.stack_file = "unknown stack file";
|
|
|
|
}
|
|
|
|
if (pseudo_header) {
|
|
pseudo_header->k12.input = input;
|
|
pseudo_header->k12.stuff = wth->capture.k12;
|
|
}
|
|
|
|
wth->pseudo_header.k12.input = input;
|
|
wth->pseudo_header.k12.stuff = wth->capture.k12;
|
|
|
|
K12_DBG(5,("k12_seek_read: DONE OK"));
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
static k12_t* new_k12_file_data(void) {
|
|
k12_t* fd = g_malloc(sizeof(k12_t));
|
|
|
|
fd->file_len = 0;
|
|
fd->num_of_records = 0;
|
|
fd->src_by_name = g_hash_table_new(g_str_hash,g_str_equal);
|
|
fd->src_by_id = g_hash_table_new(g_direct_hash,g_direct_equal);
|
|
|
|
buffer_init(&(fd->extra_info), 100);
|
|
|
|
return fd;
|
|
}
|
|
|
|
static gboolean destroy_srcdsc(gpointer k _U_, gpointer v, gpointer p _U_) {
|
|
k12_src_desc_t* rec = v;
|
|
|
|
if(rec->input_name)
|
|
g_free(rec->input_name);
|
|
|
|
if(rec->stack_file)
|
|
g_free(rec->stack_file);
|
|
|
|
g_free(rec);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static void destroy_k12_file_data(k12_t* fd) {
|
|
g_hash_table_destroy(fd->src_by_id);
|
|
g_hash_table_foreach_remove(fd->src_by_name,destroy_srcdsc,NULL);
|
|
g_hash_table_destroy(fd->src_by_name);
|
|
buffer_free(&(fd->extra_info));
|
|
g_free(fd);
|
|
}
|
|
|
|
static void k12_close(wtap *wth) {
|
|
destroy_k12_file_data(wth->capture.k12);
|
|
#ifdef DEBUG_K12
|
|
K12_DBG(5,("k12_close: CLOSED"));
|
|
if (env_file) fclose(dbg_out);
|
|
#endif
|
|
}
|
|
|
|
|
|
int k12_open(wtap *wth, int *err, gchar **err_info _U_) {
|
|
k12_src_desc_t* rec;
|
|
guint8 header_buffer[0x200];
|
|
guint8* read_buffer;
|
|
guint32 type;
|
|
long offset;
|
|
long len;
|
|
guint32 rec_len;
|
|
guint32 extra_len;
|
|
guint32 name_len;
|
|
guint32 stack_len;
|
|
guint i;
|
|
k12_t* file_data;
|
|
|
|
#ifdef DEBUG_K12
|
|
gchar* env_level = getenv("K12_DEBUG_LEVEL");
|
|
env_file = getenv("K12_DEBUG_FILENAME");
|
|
if ( env_file ) dbg_out = eth_fopen(env_file,"w");
|
|
else dbg_out = stderr;
|
|
if ( env_level ) debug_level = strtoul(env_level,NULL,10);
|
|
K12_DBG(1,("k12_open: ENTER debug_level=%u",debug_level));
|
|
#endif
|
|
|
|
if ( file_read(header_buffer,1,0x200,wth->fh) != 0x200 ) {
|
|
K12_DBG(1,("k12_open: FILE HEADER TOO SHORT"));
|
|
return 0;
|
|
} else {
|
|
if ( memcmp(header_buffer,k12_file_magic,8) != 0 ) {
|
|
K12_DBG(1,("k12_open: BAD MAGIC"));
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
offset = 0x200;
|
|
|
|
file_data = new_k12_file_data();
|
|
|
|
file_data->file_len = pntohl( header_buffer + 0x8);
|
|
file_data->num_of_records = pntohl( header_buffer + 0xC );
|
|
|
|
K12_DBG(5,("k12_open: FILE_HEADER OK: offset=%x file_len=%i records=%i",
|
|
offset,
|
|
file_data->file_len,
|
|
file_data->num_of_records ));
|
|
|
|
do {
|
|
|
|
len = get_record(&read_buffer, wth->fh, offset);
|
|
|
|
if ( len <= 0 ) {
|
|
K12_DBG(1,("k12_open: BAD HEADER RECORD",len));
|
|
return -1;
|
|
}
|
|
|
|
|
|
type = pntohl( read_buffer + K12_RECORD_TYPE );
|
|
|
|
if ( (type & K12_MASK_PACKET) == K12_REC_PACKET) {
|
|
/*
|
|
* we are at the first packet record, rewind and leave.
|
|
*/
|
|
if (file_seek(wth->fh, offset, SEEK_SET, err) == -1) {
|
|
destroy_k12_file_data(file_data);
|
|
return -1;
|
|
}
|
|
K12_DBG(5,("k12_open: FIRST PACKET offset=%x",offset));
|
|
break;
|
|
} else if (type == K12_REC_SRCDSC || type == K12_REC_SRCDSC2 ) {
|
|
rec = g_malloc0(sizeof(k12_src_desc_t));
|
|
|
|
rec_len = pntohl( read_buffer + K12_RECORD_LEN );
|
|
extra_len = pntohs( read_buffer + K12_SRCDESC_EXTRALEN );
|
|
name_len = pntohs( read_buffer + K12_SRCDESC_NAMELEN );
|
|
stack_len = pntohs( read_buffer + K12_SRCDESC_STACKLEN );
|
|
|
|
rec->input = pntohl( read_buffer + K12_RECORD_SRC_ID );
|
|
|
|
K12_DBG(5,("k12_open: INTERFACE RECORD offset=%x interface=%x",offset,rec->input));
|
|
|
|
if (name_len == 0 || stack_len == 0
|
|
|| 0x20 + extra_len + name_len + stack_len > rec_len ) {
|
|
g_free(rec);
|
|
K12_DBG(5,("k12_open: failed (name_len == 0 || stack_len == 0 "
|
|
"|| 0x20 + extra_len + name_len + stack_len > rec_len) extra_len=%i name_len=%i stack_len=%i"));
|
|
return 0;
|
|
}
|
|
|
|
if (extra_len)
|
|
switch(( rec->input_type = pntohl( read_buffer + K12_SRCDESC_EXTRATYPE ) )) {
|
|
case K12_PORT_DS0S:
|
|
rec->input_info.ds0mask = 0x00000000;
|
|
|
|
for (i = 0; i < 32; i++) {
|
|
rec->input_info.ds0mask |= ( *(read_buffer + K12_SRCDESC_DS0_MASK + i) == 0xff ) ? 0x1<<(31-i) : 0x0;
|
|
}
|
|
|
|
break;
|
|
case K12_PORT_ATMPVC:
|
|
rec->input_info.atm.vp = pntohs( read_buffer + K12_SRCDESC_ATM_VPI );
|
|
rec->input_info.atm.vc = pntohs( read_buffer + K12_SRCDESC_ATM_VCI );
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
else { /* Record viewer generated files
|
|
don't have this information */
|
|
if (read_buffer[K12_SRCDESC_PORT_TYPE] >= 0x14
|
|
&& read_buffer[K12_SRCDESC_PORT_TYPE] <= 0x17)
|
|
/* For ATM2_E1DS1, ATM2_E3DS3,
|
|
ATM2_STM1EL and ATM2_STM1OP */
|
|
rec->input_type = K12_PORT_ATMPVC;
|
|
}
|
|
|
|
rec->input_name = g_memdup(read_buffer + K12_SRCDESC_EXTRATYPE + extra_len, name_len);
|
|
rec->stack_file = g_memdup(read_buffer + K12_SRCDESC_EXTRATYPE + extra_len + name_len, stack_len);
|
|
|
|
g_ascii_strdown (rec->stack_file,stack_len);
|
|
|
|
g_hash_table_insert(file_data->src_by_id,GUINT_TO_POINTER(rec->input),rec);
|
|
g_hash_table_insert(file_data->src_by_name,rec->stack_file,rec);
|
|
|
|
offset += len;
|
|
continue;
|
|
} else {
|
|
offset += len;
|
|
continue;
|
|
}
|
|
} while(1);
|
|
|
|
wth->data_offset = offset;
|
|
wth->file_type = WTAP_FILE_K12;
|
|
wth->file_encap = WTAP_ENCAP_K12;
|
|
wth->snapshot_length = 0;
|
|
wth->subtype_read = k12_read;
|
|
wth->subtype_seek_read = k12_seek_read;
|
|
wth->subtype_close = k12_close;
|
|
wth->capture.k12 = file_data;
|
|
wth->tsprecision = WTAP_FILE_TSPREC_NSEC;
|
|
|
|
return 1;
|
|
}
|
|
|
|
int k12_dump_can_write_encap(int encap) {
|
|
|
|
if (encap == WTAP_ENCAP_PER_PACKET)
|
|
return WTAP_ERR_ENCAP_PER_PACKET_UNSUPPORTED;
|
|
|
|
if (encap != WTAP_ENCAP_K12)
|
|
return WTAP_ERR_UNSUPPORTED_ENCAP;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const gchar dumpy_junk[] = { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 };
|
|
|
|
static gboolean do_fwrite(const void *data, size_t size, size_t count, FILE *stream, int *err_p) {
|
|
size_t nwritten;
|
|
|
|
nwritten = fwrite(data, size, count, stream);
|
|
if (nwritten != count) {
|
|
if (nwritten == 0 && ferror(stream))
|
|
*err_p = errno;
|
|
else
|
|
*err_p = WTAP_ERR_SHORT_WRITE;
|
|
return FALSE;
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean k12_dump_record(wtap_dumper *wdh, long len, guint8* buffer, int *err_p) {
|
|
long junky_offset = (0x2000 - ( (wdh->dump.k12->file_offset - 0x200) % 0x2000 )) % 0x2000;
|
|
|
|
if (len > junky_offset) {
|
|
if (junky_offset) {
|
|
if (! do_fwrite(buffer, 1, junky_offset, wdh->fh, err_p))
|
|
return FALSE;
|
|
}
|
|
if (! do_fwrite(dumpy_junk, 1, 0x10, wdh->fh, err_p))
|
|
return FALSE;
|
|
|
|
if (! do_fwrite(buffer+junky_offset, 1, len - junky_offset, wdh->fh, err_p))
|
|
return FALSE;
|
|
|
|
wdh->dump.k12->file_offset += len + 0x10;
|
|
} else {
|
|
if (! do_fwrite(buffer, 1, len, wdh->fh, err_p))
|
|
return FALSE;
|
|
wdh->dump.k12->file_offset += len;
|
|
}
|
|
|
|
wdh->dump.k12->num_of_records++;
|
|
return TRUE;
|
|
}
|
|
|
|
static void k12_dump_src_setting(gpointer k _U_, gpointer v, gpointer p) {
|
|
k12_src_desc_t* src_desc = v;
|
|
wtap_dumper *wdh = p;
|
|
guint32 len;
|
|
guint offset;
|
|
guint i;
|
|
int errxxx; /* dummy */
|
|
|
|
union {
|
|
guint8 buffer[0x2000];
|
|
|
|
struct {
|
|
guint32 len;
|
|
guint32 type;
|
|
guint32 unk32_1;
|
|
guint32 input;
|
|
|
|
guint16 unk32_2;
|
|
guint16 color;
|
|
guint32 unk32_3;
|
|
guint32 unk32_4;
|
|
guint16 unk16_1;
|
|
guint16 extra_len;
|
|
|
|
guint16 name_len;
|
|
guint16 stack_len;
|
|
|
|
struct {
|
|
guint32 type;
|
|
|
|
union {
|
|
struct {
|
|
guint32 unk32;
|
|
guint8 mask[32];
|
|
} ds0mask;
|
|
|
|
struct {
|
|
guint8 unk_data[0x10];
|
|
guint16 vp;
|
|
guint16 vc;
|
|
} atm;
|
|
|
|
guint32 unk;
|
|
} desc;
|
|
} extra;
|
|
} record;
|
|
} obj;
|
|
|
|
obj.record.type = g_htonl(K12_REC_SRCDSC);
|
|
obj.record.unk32_1 = g_htonl(0x00000001);
|
|
obj.record.input = g_htonl(src_desc->input);
|
|
|
|
obj.record.unk32_2 = g_htons(0x0000);
|
|
obj.record.color = g_htons(0x060f);
|
|
obj.record.unk32_3 = g_htonl(0x00000003);
|
|
switch (src_desc->input_type) {
|
|
case K12_PORT_ATMPVC:
|
|
obj.record.unk32_4 = g_htonl(0x01001400);
|
|
break;
|
|
default:
|
|
obj.record.unk32_4 = g_htonl(0x01000100);
|
|
}
|
|
|
|
obj.record.unk16_1 = g_htons(0x0000);
|
|
obj.record.name_len = strlen(src_desc->input_name) + 1;
|
|
obj.record.stack_len = strlen(src_desc->stack_file) + 1;
|
|
|
|
obj.record.extra.type = g_htonl(src_desc->input_type);
|
|
|
|
switch (src_desc->input_type) {
|
|
case K12_PORT_ATMPVC:
|
|
obj.record.extra_len = g_htons(0x18);
|
|
obj.record.extra.desc.atm.vp = g_htons(src_desc->input_info.atm.vp);
|
|
obj.record.extra.desc.atm.vc = g_htons(src_desc->input_info.atm.vc);
|
|
offset = 0x3c;
|
|
break;
|
|
case K12_PORT_DS0S:
|
|
obj.record.extra_len = g_htons(0x18);
|
|
for( i=0; i<32; i++ ) {
|
|
obj.record.extra.desc.ds0mask.mask[i] =
|
|
(src_desc->input_info.ds0mask & (1 << i)) ? 0xff : 0x00;
|
|
}
|
|
offset = 0x3c;
|
|
break;
|
|
default:
|
|
obj.record.extra_len = g_htons(0x08);
|
|
offset = 0x2c;
|
|
break;
|
|
}
|
|
|
|
memcpy(obj.buffer + offset,
|
|
src_desc->input_name,
|
|
obj.record.name_len);
|
|
|
|
memcpy(obj.buffer + offset + obj.record.name_len,
|
|
src_desc->stack_file,
|
|
obj.record.stack_len);
|
|
|
|
len = offset + obj.record.name_len + obj.record.stack_len;
|
|
len += (len % 4) ? 4 - (len % 4) : 0;
|
|
|
|
obj.record.len = g_htonl(len);
|
|
obj.record.name_len = g_htons(obj.record.name_len);
|
|
obj.record.stack_len = g_htons(obj.record.stack_len);
|
|
|
|
k12_dump_record(wdh,len,obj.buffer, &errxxx); /* fwrite errs ignored: see k12_dump below */
|
|
}
|
|
|
|
static gboolean k12_dump(wtap_dumper *wdh, const struct wtap_pkthdr *phdr,
|
|
const union wtap_pseudo_header *pseudo_header,
|
|
const guchar *pd, int *err) {
|
|
long len;
|
|
union {
|
|
guint8 buffer[0x2000];
|
|
struct {
|
|
guint32 len;
|
|
guint32 type;
|
|
guint32 frame_len;
|
|
guint32 input;
|
|
|
|
guint32 datum_1;
|
|
guint32 datum_2;
|
|
guint64 ts;
|
|
|
|
guint8 frame[0x1fc0];
|
|
} record;
|
|
} obj;
|
|
|
|
if (wdh->dump.k12->num_of_records == 0) {
|
|
k12_t* file_data = pseudo_header->k12.stuff;
|
|
/* XXX: We'll assume that any fwrite errors in k12_dump_src_setting will */
|
|
/* repeat during the final k12_dump_record at the end of k12_dump */
|
|
/* (and thus cause an error return from k12_dump). */
|
|
/* (I don't see a reasonably clean way to handle any fwrite errors */
|
|
/* encountered in k12_dump_src_setting). */
|
|
g_hash_table_foreach(file_data->src_by_id,k12_dump_src_setting,wdh);
|
|
}
|
|
obj.record.len = 0x20 + phdr->len;
|
|
obj.record.len += (obj.record.len % 4) ? 4 - obj.record.len % 4 : 0;
|
|
|
|
len = obj.record.len;
|
|
|
|
obj.record.len = g_htonl(obj.record.len);
|
|
|
|
obj.record.type = g_htonl(K12_REC_PACKET);
|
|
obj.record.frame_len = g_htonl(phdr->len);
|
|
obj.record.input = g_htonl(pseudo_header->k12.input);
|
|
|
|
obj.record.ts = GUINT64_TO_BE((((guint64)phdr->ts.secs - 631152000) * 2000000) + (phdr->ts.nsecs / 1000 * 2));
|
|
|
|
memcpy(obj.record.frame,pd,phdr->len);
|
|
|
|
return k12_dump_record(wdh,len,obj.buffer, err);
|
|
}
|
|
|
|
static const guint8 k12_eof[] = {0xff,0xff};
|
|
|
|
static gboolean k12_dump_close(wtap_dumper *wdh, int *err) {
|
|
union {
|
|
guint8 b[sizeof(guint32)];
|
|
guint32 u;
|
|
} d;
|
|
|
|
if (! do_fwrite(k12_eof, 1, 2, wdh->fh, err))
|
|
return FALSE;
|
|
|
|
if (fseek(wdh->fh, 8, SEEK_SET) == -1) {
|
|
*err = errno;
|
|
return FALSE;
|
|
}
|
|
|
|
d.u = g_htonl(wdh->dump.k12->file_len);
|
|
|
|
if (! do_fwrite(d.b, 1, 4, wdh->fh, err))
|
|
return FALSE;
|
|
|
|
d.u = g_htonl(wdh->dump.k12->num_of_records);
|
|
|
|
if (! do_fwrite(d.b, 1, 4, wdh->fh, err))
|
|
return FALSE;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
gboolean k12_dump_open(wtap_dumper *wdh, gboolean cant_seek, int *err) {
|
|
|
|
if (cant_seek) {
|
|
*err = WTAP_ERR_CANT_WRITE_TO_PIPE;
|
|
return FALSE;
|
|
}
|
|
|
|
if ( ! do_fwrite(k12_file_magic, 1, 8, wdh->fh, err)) {
|
|
return FALSE;
|
|
}
|
|
|
|
if (fseek(wdh->fh, 0x200, SEEK_SET) == -1) {
|
|
*err = errno;
|
|
return FALSE;
|
|
}
|
|
|
|
wdh->subtype_write = k12_dump;
|
|
wdh->subtype_close = k12_dump_close;
|
|
|
|
wdh->dump.k12 = g_malloc(sizeof(k12_dump_t));
|
|
wdh->dump.k12->file_len = 0x200;
|
|
wdh->dump.k12->num_of_records = 0;
|
|
wdh->dump.k12->file_offset = 0x200;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
|