add support for the text export format of textronix k1[25]

svn path=/trunk/; revision=21651

1 files changed, 310 insertions, 0 deletions

diff --git a/wiretap/k12text.l b/wiretap/k12text.l
new file mode 100644
index 0000000000..f3e9c94d42
--- /dev/null
+++ b/wiretap/k12text.l
@@ -0,0 +1,310 @@
+%option noyywrap

+%option nounput 

+%option outfile="k12text.c"

+%option prefix="K12Text_"

+%option never-interactive

+%{

+/* k12text.l

+ *

+ * $Id: $

+ *

+ * 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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

+ */

+ 

+ /* 

+  * TODO:

+  *   - fix timestamps after midnight

+  *   - verify encapsulations

+  */

+

+#ifdef HAVE_CONFIG_H

+#include "config.h"

+#endif

+#include <stdlib.h>

+#include <string.h>

+#include <errno.h>

+#include <time.h>

+#include "wtap-int.h"

+#include "wtap.h"

+#include "file_wrappers.h"

+#include "buffer.h"

+

+static guint h;

+static guint m;

+static guint s;

+static guint ms;

+static guint ns;

+static gint encap;

+static guint8 b[65536];

+static guint i;

+static gboolean is_k12text;

+static gboolean at_eof;

+static guint junk_chars = 0;

+static void finalize_frame(void);

+static gchar* error_str;

+static gint64 cum_offset;

+static gboolean ok_frame;

+static FILE_T yy_fh;

+

+#define RESET() do { ok_frame = FALSE; h=0; m=0; s=0; ns=0; ms=0; i=0; is_k12text=FALSE; junk_chars = 0; error_str = NULL; } while(0)

+

+#define KERROR(text) do { error_str = (text); yyterminate(); } while(0)

+#define START_PACKET RESET

+#define SET_HOURS(text) h = strtoul(text,NULL,10)

+#define SET_MINUTES(text) m = strtoul(text,NULL,10)

+#define SET_SECONDS(text) s = strtoul(text,NULL,10)

+#define SET_MS(text) ms = strtoul(text,NULL,10)

+#define SET_NS(text) ns = strtoul(text,NULL,10)

+#define SET_ENCAP(text) set_encap(text)

+#define ADD_BYTE(text) do {if (i >= 65536) {KERROR("frame too large");} b[i++] = (guint8)strtoul(text,NULL,16); } while(0)

+#define FINALIZE_FRAME() finalize_frame()

+//~ #define ECHO

+#define YY_USER_ACTION cum_offset += yyleng;

+#define YY_INPUT(buf,result,max_size) { int c = file_getc(yy_fh);  result = (c==EOF) ? YY_NULL : (buf[0] = c, 1); } 

+

+#define MAX_JUNK 400000

+#define ECHO

+%}

+start_timestamp \053[\055]{9}\053[\055]{15,100}\053[\055]{10,100}\053

+oneormoredigits [0-9]+:

+twodigits [0-9][0-9]

+colon :

+comma ,

+threedigits [0-9][0-9][0-9]

+start_bytes \174\060\040\040\040\174

+bytes_junk \174[A-F0-9][A-F0-9\040][A-F0-9\040][A-F0-9\040]\174

+byte [a-f0-9][a-f0-9]\174

+end_bytes \015\012\015\012

+eth ETHER

+mtp2 MTP-L2

+sscop SSCOP

+sscfnni SSCF

+hdlc HDLC

+

+%START NEXT_FRAME HOURS H2M MINUTES M2S S2M MS M2N NS ENCAP STARTBYTES BYTE ENDBYTES MAGIC SECONDS

+%%

+<MAGIC>{start_timestamp}  { is_k12text = TRUE; yyterminate(); }

+

+<MAGIC>. { if (++ junk_chars > MAX_JUNK) { is_k12text = FALSE;  yyterminate(); } }

+

+<NEXT_FRAME>{start_timestamp} { START_PACKET(); BEGIN(HOURS); }

+<HOURS>{oneormoredigits} { SET_HOURS(yytext); BEGIN(MINUTES); }

+<MINUTES>{twodigits} { SET_MINUTES(yytext); BEGIN(M2S);}

+<M2S>{colon} { BEGIN(SECONDS);}

+<SECONDS>{twodigits} { SET_SECONDS(yytext); BEGIN(S2M); }

+<S2M>{comma}  { BEGIN(MS); }

+<MS>{threedigits} { SET_MS(yytext); BEGIN(M2N);  }

+<M2N>{comma}  { BEGIN(NS); }

+<NS>{threedigits} { SET_NS(yytext); BEGIN(ENCAP);}

+<ENCAP>{eth} {encap = WTAP_ENCAP_ETHERNET; BEGIN(STARTBYTES); }

+<ENCAP>{mtp2} {encap = WTAP_ENCAP_MTP2; BEGIN(STARTBYTES); }

+<ENCAP>{sscop} {encap = WTAP_ENCAP_ATM_PDUS; BEGIN(STARTBYTES); }

+<ENCAP>{sscfnni} {encap = WTAP_ENCAP_MTP3; BEGIN(STARTBYTES); }

+<ENCAP>{hdlc} {encap = WTAP_ENCAP_CHDLC; BEGIN(STARTBYTES); }

+<ENCAP,STARTBYTES>{start_bytes} { BEGIN(BYTE); }

+<BYTE>{byte} { ADD_BYTE(yytext); }

+<BYTE>{bytes_junk} ;

+<BYTE>{end_bytes} { FINALIZE_FRAME(); yyterminate(); }

+

+. {  if (++junk_chars > MAX_JUNK) { KERROR("too much junk");  } }

+<<EOF>> { at_eof = TRUE; yyterminate(); }

+

+%%

+

+static void finalize_frame(void) {

+	ok_frame = TRUE;

+}

+

+static gboolean k12text_read(wtap *wth, int *err, gchar **err_info _U_, gint64 *data_offset) {

+	gint64 start_offset = cum_offset;

+	

+	encap = WTAP_ENCAP_UNKNOWN;

+	ok_frame = FALSE;

+	

+	BEGIN(NEXT_FRAME);

+	yylex();

+	

+	if (ok_frame == FALSE) {

+		if (at_eof) {

+			*err_info = NULL;

+			*err = 0;

+		} else {

+			*err_info = error_str;

+			*err = WTAP_ERR_BAD_RECORD;

+		}

+		return FALSE;

+	}

+	

+	wth->data_offset = *data_offset = start_offset ;

+	

+	

+	wth->phdr.ts.secs = 946681200 + (3600*h) + (60*m) + s;

+	wth->phdr.ts.nsecs = 1000000*ms + 1000*ns;

+	

+	wth->phdr.caplen = wth->phdr.len = i;

+	

+	wth->phdr.pkt_encap = encap;

+	

+	buffer_assure_space(wth->frame_buffer, wth->phdr.caplen);

+	memcpy(buffer_start_ptr(wth->frame_buffer), b, wth->phdr.caplen);

+

+	return TRUE;

+}

+

+static gboolean k12text_seek_read(wtap *wth, gint64 seek_off, union wtap_pseudo_header *pseudo_header, guchar *pd, int length, int *err, gchar **err_info) {

+	gint64 save_offset = cum_offset;

+

+	ok_frame = FALSE;

+	RESET();

+

+	yy_fh = wth->random_fh;

+

+

+	if ( file_seek(yy_fh, seek_off, SEEK_SET, err) == -1) {

+		return FALSE;

+	}

+	

+	BEGIN(NEXT_FRAME);

+	yylex();

+

+	if (ok_frame == FALSE) {

+		*err_info = error_str;

+		*err = WTAP_ERR_BAD_RECORD;

+		return FALSE;

+	}

+		

+	memcpy(pd, b, length);

+

+	cum_offset = save_offset ;

+	return TRUE;

+}

+

+static void k12text_close(wtap *wth _U_) {

+	(void)0;

+}

+

+int k12text_open(wtap *wth, int *err, gchar **err_info _U_) {

+	

+	cum_offset = 0;

+	

+	RESET();

+	yy_fh = wth->fh;

+	BEGIN(MAGIC);

+	yylex();

+

+	if (! is_k12text) return 0;

+	

+	if ( file_seek(yy_fh, 0, SEEK_SET, err) == -1) {

+		return -1;

+	}

+

+	cum_offset = 0;

+

+	wth->data_offset = 0;

+	wth->file_type = WTAP_FILE_K12TEXT;

+	wth->file_encap = WTAP_ENCAP_PER_PACKET;

+	wth->snapshot_length = 0;

+	wth->subtype_read = k12text_read;

+	wth->subtype_seek_read = k12text_seek_read;

+	wth->subtype_close = k12text_close;

+	wth->capture.generic  = NULL;

+	wth->tsprecision = WTAP_FILE_TSPREC_NSEC;    

+

+	return 1;

+}

+

+

+static const struct { int e; const char* s; } encaps[] = {

+	{ WTAP_ENCAP_ETHERNET, "ETHER" },

+	{ WTAP_ENCAP_MTP2, "MTP-L2" },

+	{ WTAP_ENCAP_ATM_PDUS, "SSCOP" },

+	{ WTAP_ENCAP_MTP3, "SSCF" },

+	{ WTAP_ENCAP_CHDLC, "HDLC" },

+	/* ... */

+	{ WTAP_ENCAP_UNKNOWN, "UNKNOWN" },

+	{ 0, NULL }

+};

+

+static gboolean k12text_dump(wtap_dumper *wdh _U_, const struct wtap_pkthdr *phdr,

+                         const union wtap_pseudo_header *pseudo_header _U_,

+                         const guchar *pd, int *err _U_) {

+	char buf[196808];

+	char* p=buf;

+	const char* str_enc;

+	guint i;

+	guint ns;

+	guint ms;

+	

+	ms = phdr->ts.nsecs / 1000000;

+	ns = (phdr->ts.nsecs - (1000000*ms))/1000;

+

+	for(i=0; encaps[i].s; i++) {

+		str_enc = encaps[i].s;

+		if (phdr->pkt_encap == encaps[i].e) break;

+	}

+	

+	strftime(p,90,"+---------+---------------+----------+\r\n%H:%M:%S,",gmtime(&phdr->ts.secs));

+	p+= strlen(p);

+	sprintf(p,"%.3d,%.3d   %s\r\n|0   |",ms,ns,str_enc);

+	p+= strlen(p);

+

+	for(i=0;i < phdr->caplen; i++) {

+		sprintf(p,"%.2x|",pd[i]);

+		p+= 3;

+	}

+	

+	sprintf(p,"\r\n\r\n");

+	

+	fwrite(buf, 1, strlen(buf), wdh->fh);

+	

+	return TRUE;

+}

+

+

+static gboolean k12text_dump_close(wtap_dumper *wdh, int *err) {

+	(void)0;

+	return TRUE;

+}

+

+gboolean k12text_dump_open(wtap_dumper *wdh, gboolean cant_seek, int *err) {

+    

+    if (cant_seek) {

+        *err = WTAP_ERR_CANT_WRITE_TO_PIPE;

+        return FALSE;

+    }

+    

+    wdh->subtype_write = k12text_dump;

+    wdh->subtype_close = k12text_dump_close;

+

+    return TRUE;

+}

+

+int k12text_dump_can_write_encap(int encap) {

+    switch (encap) {

+	case WTAP_ENCAP_PER_PACKET:

+	case WTAP_ENCAP_ETHERNET:

+	case WTAP_ENCAP_MTP2:

+	case WTAP_ENCAP_ATM_PDUS:

+	case WTAP_ENCAP_MTP3:

+	case WTAP_ENCAP_CHDLC:

+	case WTAP_ENCAP_UNKNOWN:

+		return 0;

+	default:

+		return WTAP_ERR_UNSUPPORTED_ENCAP;

+    }

+}
\ No newline at end of file