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wireshark/wiretap/ascend-grammar.y
Guy Harris d6cd61061e Have the Wiretap open, read, and seek-and-read routines return, in 
addition to an error code, an error info string, for
WTAP_ERR_UNSUPPORTED, WTAP_ERR_UNSUPPORTED_ENCAP, and
WTAP_ERR_BAD_RECORD errors.  Replace the error messages logged with
"g_message()" for those errors with g_strdup()ed or g_strdup_printf()ed
strings returned as the error info string, and change the callers of
those routines to, for those errors, put the info string into the
printed message or alert box for the error.

Add messages for cases where those errors were returned without printing
an additional message.

Nobody uses the error code from "cf_read()" - "cf_read()" puts up the
alert box itself for failures; get rid of the error code, so it just
returns a success/failure indication.

Rename "file_read_error_message()" to "cf_read_error_message()", as it
handles read errors from Wiretap, and have it take an error info string
as an argument.  (That handles a lot of the work of putting the info
string into the error message.)

Make some variables in "ascend-grammar.y" static.

Check the return value of "erf_read_header()" in "erf_seek_read()".

Get rid of an unused #define in "i4btrace.c".

svn path=/trunk/; revision=9852
2004-01-25 21:55:17 +00:00

416 lines
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%{
/* ascend-grammar.y
*
* $Id: ascend-grammar.y,v 1.26 2004/01/25 21:55:12 guy Exp $
*
* Wiretap Library
* Copyright (c) 1998 by Gilbert Ramirez <gram@alumni.rice.edu>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
*/
/*
Example 'wandsess' output data:
RECV-iguana:241:(task: B02614C0, time: 1975432.85) 49 octets @ 8003BD94
[0000]: FF 03 00 3D C0 06 CA 22 2F 45 00 00 28 6A 3B 40
[0010]: 00 3F 03 D7 37 CE 41 62 12 CF 00 FB 08 20 27 00
[0020]: 50 E4 08 DD D7 7C 4C 71 92 50 10 7D 78 67 C8 00
[0030]: 00
XMIT-iguana:241:(task: B04E12C0, time: 1975432.85) 53 octets @ 8009EB16
[0000]: FF 03 00 3D C0 09 1E 31 21 45 00 00 2C 2D BD 40
[0010]: 00 7A 06 D8 B1 CF 00 FB 08 CE 41 62 12 00 50 20
[0020]: 29 7C 4C 71 9C 9A 6A 93 A4 60 12 22 38 3F 10 00
[0030]: 00 02 04 05 B4
Example 'wdd' output data:
Date: 01/12/1990. Time: 12:22:33
Cause an attempt to place call to 14082750382
WD_DIALOUT_DISP: chunk 2515EE type IP.
(task: 251790, time: 994953.28) 44 octets @ 2782B8
[0000]: 00 C0 7B 71 45 6C 00 60 08 16 AA 51 08 00 45 00
[0010]: 00 2C 66 1C 40 00 80 06 53 F6 AC 14 00 18 CC 47
[0020]: C8 45 0A 31 00 50 3B D9 5B 75 00 00
The following output comes from a MAX with Software 7.2.3:
RECV-187:(task: B050B480, time: 18042248.03) 100 octets @ 800012C0
[0000]: FF 03 00 21 45 00 00 60 E3 49 00 00 7F 11 FD 7B
[0010]: C0 A8 F7 05 8A C8 18 51 00 89 00 89 00 4C C7 C1
[0020]: CC 8E 40 00 00 01 00 00 00 00 00 01 20 45 4A 45
[0030]: 42 45 43 45 48 43 4E 46 43 46 41 43 41 43 41 43
[0040]: 41 43 41 43 41 43 41 43 41 43 41 42 4E 00 00 20
[0050]: 00 01 C0 0C 00 20 00 01 00 04 93 E0 00 06 60 00
[0060]: C0 A8 F7 05
XMIT-187:(task: B0292CA0, time: 18042248.04) 60 octets @ 800AD576
[0000]: FF 03 00 21 45 00 00 38 D7 EE 00 00 0F 01 11 2B
[0010]: 0A FF FF FE C0 A8 F7 05 03 0D 33 D3 00 00 00 00
[0020]: 45 00 00 60 E3 49 00 00 7E 11 FE 7B C0 A8 F7 05
[0030]: 8A C8 18 51 00 89 00 89 00 4C C7 C1
RECV-187:(task: B0292CA0, time: 18042251.92) 16 octets @ 800018E8
[0000]: FF 03 C0 21 09 01 00 0C DE 61 96 4B 00 30 94 92
In TAOS 8.0, Lucent slightly changed the format as follows:
Example 'wandisp' output data (TAOS 8.0.3): (same format is used
for 'wanopen' and 'wannext' command)
RECV-14: (task "idle task" at 0xb05e6e00, time: 1279.01) 29 octets @ 0x8000e0fc
[0000]: ff 03 c0 21 01 01 00 19 01 04 05 f4 11 04 05 f4 ...!.... ........
[0010]: 13 09 03 00 c0 7b 9a 9f 2d 17 04 10 00 .....{.. -....
XMIT-14: (task "idle task" at 0xb05e6e00, time: 1279.02) 38 octets @ 0x8007fd56
[0000]: ff 03 c0 21 01 01 00 22 00 04 00 00 01 04 05 f4 ...!..." ........
[0010]: 03 05 c2 23 05 11 04 05 f4 13 09 03 00 c0 7b 80 ...#.... ......{.
[0020]: 7c ef 17 04 0e 00 |.....
XMIT-14: (task "idle task" at 0xb05e6e00, time: 1279.02) 29 octets @ 0x8007fa36
[0000]: ff 03 c0 21 02 01 00 19 01 04 05 f4 11 04 05 f4 ...!.... ........
[0010]: 13 09 03 00 c0 7b 9a 9f 2d 17 04 10 00 .....{.. -....
Example 'wandsess' output data (TAOS 8.0.3):
RECV-Max7:20: (task "_brouterControlTask" at 0xb094ac20, time: 1481.50) 20 octets @ 0x8000d198
[0000]: ff 03 00 3d c0 00 00 04 80 fd 02 01 00 0a 11 06 ...=.... ........
[0010]: 00 01 01 03 ....
XMIT-Max7:20: (task "_brouterControlTask" at 0xb094ac20, time: 1481.51) 26 octets @ 0x800806b6
[0000]: ff 03 00 3d c0 00 00 00 80 21 01 01 00 10 02 06 ...=.... .!......
[0010]: 00 2d 0f 01 03 06 89 64 03 08 .-.....d ..
XMIT-Max7:20: (task "_brouterControlTask" at 0xb094ac20, time: 1481.51) 20 octets @ 0x8007f716
[0000]: ff 03 00 3d c0 00 00 01 80 fd 01 01 00 0a 11 06 ...=.... ........
[0010]: 00 01 01 03 ....
The changes since TAOS 7.X are:
1) White space is added before "(task".
2) Task has a name, indicated by a subsequent string surrounded by a
double-quote.
3) Address expressed in hex number has a preceeding "0x".
4) Hex numbers are in lower case.
5) There is a character display corresponding to hex data in each line.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdio.h>
#include <stdlib.h>
#include "wtap-int.h"
#include "buffer.h"
#include "ascend.h"
#include "ascend-int.h"
#define NO_USER "<none>"
int yyparse(void);
void yyerror(char *);
gchar *ascend_parse_error;
static unsigned int bcur = 0, bcount;
static guint32 start_time, secs, usecs, caplen, wirelen;
static ascend_pkthdr *header;
struct ascend_phdr *pseudo_header;
static guint8 *pkt_data;
%}
%union {
gchar *s;
guint32 d;
guint8 b;
}
%token <s> STRING KEYWORD WDD_DATE WDD_CHUNK COUNTER
%token <d> WDS_PREFIX DECNUM HEXNUM
%token <b> HEXBYTE
%type <s> string dataln datagroup
%type <d> wds_prefix decnum hexnum
%type <b> byte bytegroup
%%
data_packet:
| wds_hdr datagroup
| wds8_hdr datagroup
| wdp7_hdr datagroup
| wdp8_hdr datagroup
| wdd_date wdd_hdr datagroup
| wdd_hdr datagroup
;
wds_prefix: WDS_PREFIX;
string: STRING;
decnum: DECNUM;
hexnum: HEXNUM;
/* RECV-iguana:241:(task: B02614C0, time: 1975432.85) 49 octets @ 8003BD94 */
/* 1 2 3 4 5 6 7 8 9 10 11 */
wds_hdr: wds_prefix string decnum KEYWORD hexnum KEYWORD decnum decnum decnum KEYWORD HEXNUM {
wirelen = $9;
caplen = ($9 < ASCEND_MAX_PKT_LEN) ? $9 : ASCEND_MAX_PKT_LEN;
/* If we don't have as many bytes of data as the octet count in
the header, make the capture length the number of bytes we
actually have. */
if (bcount > 0 && bcount <= caplen)
caplen = bcount;
secs = $7;
usecs = $8;
if (pseudo_header != NULL) {
/* pseudo_header->user is set in ascend-scanner.l */
pseudo_header->type = $1;
pseudo_header->sess = $3;
pseudo_header->call_num[0] = '\0';
pseudo_header->chunk = 0;
pseudo_header->task = $5;
}
bcur = 0;
}
;
/* RECV-Max7:20: (task "_brouterControlTask" at 0xb094ac20, time: 1481.50) 20 octets @ 0x8000d198 */
/* 1 2 3 4 5 6 7 8 9 10 11 12 13 */
wds8_hdr: wds_prefix string decnum KEYWORD string KEYWORD hexnum KEYWORD decnum decnum decnum KEYWORD HEXNUM {
wirelen = $11;
caplen = ($11 < ASCEND_MAX_PKT_LEN) ? $11 : ASCEND_MAX_PKT_LEN;
/* If we don't have as many bytes of data as the octet count in
the header, make the capture length the number of bytes we
actually have. */
if (bcount > 0 && bcount <= caplen)
caplen = bcount;
secs = $9;
usecs = $10;
if (pseudo_header != NULL) {
/* pseudo_header->user is set in ascend-scanner.l */
pseudo_header->type = $1;
pseudo_header->sess = $3;
pseudo_header->call_num[0] = '\0';
pseudo_header->chunk = 0;
pseudo_header->task = $7;
}
bcur = 0;
}
;
/* RECV-187:(task: B050B480, time: 18042248.03) 100 octets @ 800012C0 */
/* 1 2 3 4 5 6 7 8 9 10 */
wdp7_hdr: wds_prefix decnum KEYWORD hexnum KEYWORD decnum decnum decnum KEYWORD HEXNUM {
wirelen = $8;
caplen = ($8 < ASCEND_MAX_PKT_LEN) ? $8 : ASCEND_MAX_PKT_LEN;
/* If we don't have as many bytes of data as the octet count in
the header, make the capture length the number of bytes we
actually have. */
if (bcount > 0 && bcount <= caplen)
caplen = bcount;
secs = $6;
usecs = $7;
if (pseudo_header != NULL) {
/* pseudo_header->user is set in ascend-scanner.l */
pseudo_header->type = $1;
pseudo_header->sess = $2;
pseudo_header->call_num[0] = '\0';
pseudo_header->chunk = 0;
pseudo_header->task = $4;
}
bcur = 0;
}
;
/* XMIT-44: (task "freedm_task" at 0xe051fd10, time: 6258.66) 29 octets @ 0x606d1f00 */
/* 1 2 3 4 5 6 7 8 9 10 11 12 */
wdp8_hdr: wds_prefix decnum KEYWORD string KEYWORD hexnum KEYWORD decnum decnum decnum KEYWORD HEXNUM {
wirelen = $10;
caplen = ($10 < ASCEND_MAX_PKT_LEN) ? $10 : ASCEND_MAX_PKT_LEN;
/* If we don't have as many bytes of data as the octet count in
the header, make the capture length the number of bytes we
actually have. */
if (bcount > 0 && bcount <= caplen)
caplen = bcount;
secs = $8;
usecs = $9;
if (pseudo_header != NULL) {
/* pseudo_header->user is set in ascend-scanner.l */
pseudo_header->type = $1;
pseudo_header->sess = $2;
pseudo_header->call_num[0] = '\0';
pseudo_header->chunk = 0;
pseudo_header->task = $6;
}
bcur = 0;
}
;
/*
Date: 01/12/1990. Time: 12:22:33
Cause an attempt to place call to 14082750382
*/
/* 1 2 3 4 5 6 7 8 9 10*/
wdd_date: WDD_DATE decnum decnum decnum KEYWORD decnum decnum decnum KEYWORD string {
/*
* Supply the date/time value to the code above us; it will use the
* first date/time value supplied as the capture start date/time.
*/
struct tm wddt;
wddt.tm_sec = $8;
wddt.tm_min = $7;
wddt.tm_hour = $6;
wddt.tm_mday = $3;
wddt.tm_mon = $2 - 1;
wddt.tm_year = ($4 > 1970) ? $4 - 1900 : 70;
wddt.tm_isdst = -1;
start_time = mktime(&wddt);
}
;
/*
WD_DIALOUT_DISP: chunk 2515EE type IP.
(task: 251790, time: 994953.28) 44 octets @ 2782B8
*/
/* 1 2 3 4 5 6 7 8 9 10 11*/
wdd_hdr: WDD_CHUNK hexnum KEYWORD KEYWORD hexnum KEYWORD decnum decnum decnum KEYWORD HEXNUM {
wirelen = $9;
caplen = ($9 < ASCEND_MAX_PKT_LEN) ? $9 : ASCEND_MAX_PKT_LEN;
/* If we don't have as many bytes of data as the octet count in
the header, make the capture length the number of bytes we
actually have. */
if (bcount > 0 && bcount <= caplen)
caplen = bcount;
secs = $7;
usecs = $8;
if (pseudo_header != NULL) {
/* pseudo_header->call_num is set in ascend-scanner.l */
pseudo_header->type = ASCEND_PFX_WDD;
pseudo_header->user[0] = '\0';
pseudo_header->sess = 0;
pseudo_header->chunk = $2;
pseudo_header->task = $5;
}
bcur = 0;
}
;
byte: HEXBYTE {
if (bcur < caplen) {
pkt_data[bcur] = $1;
bcur++;
}
if (bcur >= caplen) {
if (header != NULL) {
header->start_time = start_time;
header->secs = secs;
header->usecs = usecs;
header->caplen = caplen;
header->len = wirelen;
}
YYACCEPT;
}
}
;
/* XXX There must be a better way to do this... */
bytegroup: byte
| byte byte
| byte byte byte
| byte byte byte byte
| byte byte byte byte byte
| byte byte byte byte byte byte
| byte byte byte byte byte byte byte
| byte byte byte byte byte byte byte byte
| byte byte byte byte byte byte byte byte byte
| byte byte byte byte byte byte byte byte byte byte
| byte byte byte byte byte byte byte byte byte byte byte
| byte byte byte byte byte byte byte byte byte byte byte byte
| byte byte byte byte byte byte byte byte byte byte byte byte byte
| byte byte byte byte byte byte byte byte byte byte byte byte byte byte
| byte byte byte byte byte byte byte byte byte byte byte byte byte byte byte
| byte byte byte byte byte byte byte byte byte byte byte byte byte byte byte byte
;
dataln: COUNTER bytegroup;
datagroup: dataln
| dataln dataln
| dataln dataln dataln
| dataln dataln dataln dataln
| dataln dataln dataln dataln dataln
| dataln dataln dataln dataln dataln dataln
| dataln dataln dataln dataln dataln dataln dataln
| dataln dataln dataln dataln dataln dataln dataln dataln
;
%%
void
init_parse_ascend()
{
bcur = 0;
at_eof = 0;
start_time = 0; /* we haven't see a date/time yet */
}
/* Parse the capture file. Return the offset of the next packet, or zero
if there is none. */
int
parse_ascend(FILE_T fh, guint8 *pd, struct ascend_phdr *phdr,
ascend_pkthdr *hdr, int len)
{
/* yydebug = 1; */
ascend_init_lexer(fh);
pkt_data = pd;
pseudo_header = phdr;
header = hdr;
bcount = len;
/*
* Not all packets in a "wdd" dump necessarily have a "Cause an
* attempt to place call to" header (I presume this can happen if
* there was a call in progress when the packet was sent or
* received), so we won't necessarily have the phone number for
* the packet.
*
* XXX - we could assume, in the sequential pass, that it's the
* phone number from the last call, and remember that for use
* when doing random access.
*/
pseudo_header->call_num[0] = '\0';
if (yyparse())
return 0;
else
return 1;
}
void
yyerror (char *s)
{
ascend_parse_error = s;
}
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