/* vms.c
- *
- * $Id$
*
* Wiretap Library
* Copyright (c) 2001 by Marc Milgram <ethereal@mmilgram.NOSPAMmail.net>
*
* 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.
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
/* Notes:
* TCPIPTRACE_FRAGMENTS_HAVE_HEADER_LINE to expect the first line to be
* at the start of every packet.
*/
-#ifdef HAVE_CONFIG_H
#include "config.h"
-#endif
#include "wtap-int.h"
-#include "buffer.h"
+#include <wsutil/buffer.h>
#include "vms.h"
#include "file_wrappers.h"
Example UCX$TRACE output data:
- UCX INTERnet trace RCV packet seq # = 1 at 14-MAY-2003 11:32:10.93
+ UCX INTERnet trace RCV packet seq # = 1 at 14-MAY-2003 11:32:10.93
- IP Version = 4, IHL = 5, TOS = 00, Total Length = 583 = ^x0247
- IP Identifier = ^x702E, Flags (0=0,DF=0,MF=0),
- Fragment Offset = 0 = ^x0000, Calculated Offset = 0 = ^x0000
- IP TTL = 128 = ^x80, Protocol = 17 = ^x11, Header Checksum = ^x70EC
- IP Source Address = 10.20.4.159
- IP Destination Address = 10.20.4.255
+ IP Version = 4, IHL = 5, TOS = 00, Total Length = 583 = ^x0247
+ IP Identifier = ^x702E, Flags (0=0,DF=0,MF=0),
+ Fragment Offset = 0 = ^x0000, Calculated Offset = 0 = ^x0000
+ IP TTL = 128 = ^x80, Protocol = 17 = ^x11, Header Checksum = ^x70EC
+ IP Source Address = 10.20.4.159
+ IP Destination Address = 10.20.4.255
- UDP Source Port = 138, UDP Destination Port = 138
- UDP Header and Datagram Length = 563 = ^x0233, Checksum = ^xB913
+ UDP Source Port = 138, UDP Destination Port = 138
+ UDP Header and Datagram Length = 563 = ^x0233, Checksum = ^xB913
9F04140A 70EC1180 0000702E 47020045 0000 E..G.p.....p....
B1B80E11 | B9133302 8A008A00 | FF04140A 0010 .........3......
... packet seq # = nn at DD-MMM-YYYY hh:mm:ss.ss
-If there are other formats then code will have to be written in parse_vms_rec_hdr()
+If there are other formats then code will have to be written in parse_vms_packet()
to handle them.
--------------------------------------------------------------------------------
static gboolean vms_read(wtap *wth, int *err, gchar **err_info,
gint64 *data_offset);
static gboolean vms_seek_read(wtap *wth, gint64 seek_off,
- union wtap_pseudo_header *pseudo_header, guint8 *pd, int len,
- int *err, gchar **err_info);
+ struct wtap_pkthdr *phdr, Buffer *buf, int *err, gchar **err_info);
static gboolean parse_single_hex_dump_line(char* rec, guint8 *buf,
long byte_offset, int in_off, int remaining_bytes);
-static gboolean parse_vms_hex_dump(FILE_T fh, int pkt_len, guint8* buf,
- int *err, gchar **err_info);
-static int parse_vms_rec_hdr(wtap *wth, FILE_T fh, int *err, gchar **err_info);
+static gboolean parse_vms_packet(FILE_T fh, struct wtap_pkthdr *phdr,
+ Buffer *buf, int *err, gchar **err_info);
#ifdef TCPIPTRACE_FRAGMENTS_HAVE_HEADER_LINE
/* Seeks to the beginning of the next packet, and returns the
- byte offset. Returns -1 on failure, and sets "*err" to the error. */
-static long vms_seek_next_packet(wtap *wth, int *err)
+ byte offset. Returns -1 on failure, and sets "*err" to the error
+ and sets "*err_info" to null or an additional error string. */
+static long vms_seek_next_packet(wtap *wth, int *err, gchar **err_info)
{
- long cur_off;
- char buf[VMS_LINE_LENGTH];
-
- while (1) {
- cur_off = file_tell(wth->fh);
- if (cur_off == -1) {
- /* Error */
- *err = file_error(wth->fh);
- hdr = NULL;
- return -1;
- }
- if (file_gets(buf, sizeof(buf), wth->fh) != NULL) {
- if (strstr(buf, VMS_REC_MAGIC_STR1) ||
- strstr(buf, VMS_REC_MAGIC_STR2) ||
- strstr(buf, VMS_REC_MAGIC_STR2)) {
- g_strlcpy(hdr, buf,VMS_LINE_LENGTH);
- return cur_off;
- }
- } else {
- if (file_eof(wth->fh)) {
- /* We got an EOF. */
- *err = 0;
- } else {
- /* We (presumably) got an error (there's no
- equivalent to "ferror()" in zlib, alas,
- so we don't have a wrapper to check for
- an error). */
- *err = file_error(wth->fh);
- }
- break;
+ long cur_off;
+ char buf[VMS_LINE_LENGTH];
+
+ while (1) {
+ cur_off = file_tell(wth->fh);
+ if (cur_off == -1) {
+ /* Error */
+ *err = file_error(wth->fh, err_info);
+ return -1;
+ }
+ if (file_gets(buf, sizeof(buf), wth->fh) == NULL) {
+ /* EOF or error. */
+ *err = file_error(wth->fh, err_info);
+ break;
+ }
+ if (strstr(buf, VMS_REC_MAGIC_STR1) ||
+ strstr(buf, VMS_REC_MAGIC_STR2) ||
+ strstr(buf, VMS_REC_MAGIC_STR2)) {
+ g_strlcpy(hdr, buf,VMS_LINE_LENGTH);
+ return cur_off;
+ }
}
- }
- hdr = NULL;
- return -1;
+ return -1;
}
#endif /* TCPIPTRACE_FRAGMENTS_HAVE_HEADER_LINE */
* a VMS trace file.
*
* Returns TRUE if it is, FALSE if it isn't or if we get an I/O error;
- * if we get an I/O error, "*err" will be set to a non-zero value.
+ * if we get an I/O error, "*err" will be set to a non-zero value and
+ * "*err_info will be set to null or an additional error string.
*
- * Leaves file handle at begining of line that contains the VMS Magic
+ * Leaves file handle at beginning of line that contains the VMS Magic
* identifier.
*/
-static gboolean vms_check_file_type(wtap *wth, int *err)
+static gboolean vms_check_file_type(wtap *wth, int *err, gchar **err_info)
{
- char buf[VMS_LINE_LENGTH];
- guint reclen, line;
- gint64 mpos;
-
- buf[VMS_LINE_LENGTH-1] = '\0';
-
- for (line = 0; line < VMS_HEADER_LINES_TO_CHECK; line++) {
- mpos = file_tell(wth->fh);
- if (mpos == -1) {
- /* Error. */
- *err = file_error(wth->fh);
- return FALSE;
- }
- if (file_gets(buf, VMS_LINE_LENGTH, wth->fh) != NULL) {
-
- reclen = (guint) strlen(buf);
- if (reclen < strlen(VMS_HDR_MAGIC_STR1) ||
- reclen < strlen(VMS_HDR_MAGIC_STR2) ||
- reclen < strlen(VMS_HDR_MAGIC_STR3)) {
- continue;
- }
-
- if (strstr(buf, VMS_HDR_MAGIC_STR1) ||
- strstr(buf, VMS_HDR_MAGIC_STR2) ||
- strstr(buf, VMS_HDR_MAGIC_STR3)) {
- /* Go back to the beginning of this line, so we will
- * re-read it. */
- if (file_seek(wth->fh, mpos, SEEK_SET, err) == -1) {
- /* Error. */
- return FALSE;
- }
- return TRUE;
- }
- } else {
- /* EOF or error. */
- if (file_eof(wth->fh))
- *err = 0;
- else
- *err = file_error(wth->fh);
- return FALSE;
+ char buf[VMS_LINE_LENGTH];
+ guint reclen, line;
+ gint64 mpos;
+
+ buf[VMS_LINE_LENGTH-1] = '\0';
+
+ for (line = 0; line < VMS_HEADER_LINES_TO_CHECK; line++) {
+ mpos = file_tell(wth->fh);
+ if (mpos == -1) {
+ /* Error. */
+ *err = file_error(wth->fh, err_info);
+ return FALSE;
+ }
+ if (file_gets(buf, VMS_LINE_LENGTH, wth->fh) == NULL) {
+ /* EOF or error. */
+ *err = file_error(wth->fh, err_info);
+ return FALSE;
+ }
+
+ reclen = (guint) strlen(buf);
+ if (reclen < strlen(VMS_HDR_MAGIC_STR1) ||
+ reclen < strlen(VMS_HDR_MAGIC_STR2) ||
+ reclen < strlen(VMS_HDR_MAGIC_STR3)) {
+ continue;
+ }
+
+ if (strstr(buf, VMS_HDR_MAGIC_STR1) ||
+ strstr(buf, VMS_HDR_MAGIC_STR2) ||
+ strstr(buf, VMS_HDR_MAGIC_STR3)) {
+ /* Go back to the beginning of this line, so we will
+ * re-read it. */
+ if (file_seek(wth->fh, mpos, SEEK_SET, err) == -1) {
+ /* Error. */
+ return FALSE;
+ }
+ return TRUE;
+ }
}
- }
- *err = 0;
- return FALSE;
+ *err = 0;
+ return FALSE;
}
-int vms_open(wtap *wth, int *err, gchar **err_info _U_)
+wtap_open_return_val vms_open(wtap *wth, int *err, gchar **err_info)
{
/* Look for VMS header */
- if (!vms_check_file_type(wth, err)) {
- if (*err == 0)
- return 0;
- else
- return -1;
+ if (!vms_check_file_type(wth, err, err_info)) {
+ if (*err != 0 && *err != WTAP_ERR_SHORT_READ)
+ return WTAP_OPEN_ERROR;
+ return WTAP_OPEN_NOT_MINE;
}
- wth->data_offset = 0;
wth->file_encap = WTAP_ENCAP_RAW_IP;
- wth->file_type = WTAP_FILE_VMS;
+ wth->file_type_subtype = WTAP_FILE_TYPE_SUBTYPE_VMS;
wth->snapshot_length = 0; /* not known */
wth->subtype_read = vms_read;
wth->subtype_seek_read = vms_seek_read;
- wth->tsprecision = WTAP_FILE_TSPREC_CSEC;
+ wth->file_tsprec = WTAP_TSPREC_CSEC;
- return 1;
+ return WTAP_OPEN_MINE;
}
/* Find the next packet and parse it; called from wtap_read(). */
gint64 *data_offset)
{
gint64 offset = 0;
- guint8 *buf;
- int pkt_len;
/* Find the next packet */
#ifdef TCPIPTRACE_FRAGMENTS_HAVE_HEADER_LINE
- offset = vms_seek_next_packet(wth, err);
+ offset = vms_seek_next_packet(wth, err, err_info);
#else
offset = file_tell(wth->fh);
#endif
- if (offset < 1)
+ if (offset < 1) {
+ *err = file_error(wth->fh, err_info);
return FALSE;
-
- /* Parse the header */
- pkt_len = parse_vms_rec_hdr(wth, wth->fh, err, err_info);
- if (pkt_len == -1)
- return FALSE;
-
- /* Make sure we have enough room for the packet */
- buffer_assure_space(wth->frame_buffer, pkt_len);
- buf = buffer_start_ptr(wth->frame_buffer);
-
- /* Convert the ASCII hex dump to binary data */
- if (!parse_vms_hex_dump(wth->fh, pkt_len, buf, err, err_info))
- return FALSE;
-
- wth->data_offset = offset;
+ }
*data_offset = offset;
- return TRUE;
+
+ /* Parse the packet */
+ return parse_vms_packet(wth->fh, &wth->phdr, wth->frame_buffer, err, err_info);
}
/* Used to read packets in random-access fashion */
static gboolean
-vms_seek_read (wtap *wth, gint64 seek_off,
- union wtap_pseudo_header *pseudo_header _U_,
- guint8 *pd, int len, int *err, gchar **err_info)
+vms_seek_read(wtap *wth, gint64 seek_off, struct wtap_pkthdr *phdr,
+ Buffer *buf, int *err, gchar **err_info)
{
- int pkt_len;
-
if (file_seek(wth->random_fh, seek_off - 1, SEEK_SET, err) == -1)
return FALSE;
- pkt_len = parse_vms_rec_hdr(NULL, wth->random_fh, err, err_info);
-
- if (pkt_len != len) {
- if (pkt_len != -1) {
- *err = WTAP_ERR_BAD_RECORD;
- *err_info = g_strdup_printf("vms: requested length %d doesn't match length %d",
- len, pkt_len);
- }
+ if (!parse_vms_packet(wth->random_fh, phdr, buf, err, err_info)) {
+ if (*err == 0)
+ *err = WTAP_ERR_SHORT_READ;
return FALSE;
}
-
- return parse_vms_hex_dump(wth->random_fh, pkt_len, pd, err, err_info);
+ return TRUE;
}
/* isdumpline assumes that dump lines start with some non-alphanumerics
return isspace((guchar)*line);
}
-/* Parses a packet record header. */
-static int
-parse_vms_rec_hdr(wtap *wth, FILE_T fh, int *err, gchar **err_info)
+/* Parses a packet record. */
+static gboolean
+parse_vms_packet(FILE_T fh, struct wtap_pkthdr *phdr, Buffer *buf, int *err, gchar **err_info)
{
char line[VMS_LINE_LENGTH + 1];
int num_items_scanned;
struct tm tm;
char mon[4] = {'J', 'A', 'N', 0};
gchar *p;
- static gchar months[] = "JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC";
+ static const gchar months[] = "JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC";
+ int i;
+ int offset = 0;
+ guint8 *pd;
tm.tm_year = 1970;
+ tm.tm_mon = 0;
+ tm.tm_mday = 1;
tm.tm_hour = 1;
tm.tm_min = 1;
tm.tm_sec = 1;
/* Skip lines until one starts with a hex number */
do {
if (file_gets(line, VMS_LINE_LENGTH, fh) == NULL) {
- *err = file_error(fh);
+ *err = file_error(fh, err_info);
if ((*err == 0) && (csec != 101)) {
*err = WTAP_ERR_SHORT_READ;
}
- return -1;
+ return FALSE;
}
line[VMS_LINE_LENGTH] = '\0';
- if ((csec == 101) && (p = strstr(line, "packet "))
+ if ((csec == 101) && (p = strstr(line, "packet ")) != NULL
&& (! strstr(line, "could not save "))) {
/* Find text in line starting with "packet ". */
/* First look for the Format 1 type sequencing */
- num_items_scanned = sscanf(p,
- "packet %d at %d-%3s-%d %d:%d:%d.%d",
- &pktnum, &tm.tm_mday, mon,
+ num_items_scanned = sscanf(p,
+ "packet %9d at %2d-%3s-%4d %2d:%2d:%2d.%9d",
+ &pktnum, &tm.tm_mday, mon,
&tm.tm_year, &tm.tm_hour,
&tm.tm_min, &tm.tm_sec, &csec);
/* Next look for the Format 2 type sequencing */
if (num_items_scanned != 8) {
num_items_scanned = sscanf(p,
- "packet seq # = %d at %d-%3s-%d %d:%d:%d.%d",
- &pktnum, &tm.tm_mday, mon,
- &tm.tm_year, &tm.tm_hour,
- &tm.tm_min, &tm.tm_sec, &csec);
+ "packet seq # = %9d at %2d-%3s-%4d %2d:%2d:%2d.%9d",
+ &pktnum, &tm.tm_mday, mon,
+ &tm.tm_year, &tm.tm_hour,
+ &tm.tm_min, &tm.tm_sec, &csec);
}
/* if unknown format then exit with error */
/* We will need to add code to handle new format */
if (num_items_scanned != 8) {
- *err = WTAP_ERR_BAD_RECORD;
- *err_info = g_strdup_printf("vms: header line not valid");
- return -1;
+ *err = WTAP_ERR_BAD_FILE;
+ *err_info = g_strdup_printf("vms: header line not valid");
+ return FALSE;
}
}
- if ( (! pkt_len) && (p = strstr(line, "Length"))) {
- p += sizeof("Length ");
- while (*p && ! isdigit((guchar)*p))
- p++;
-
- if ( !*p ) {
- *err = WTAP_ERR_BAD_RECORD;
- *err_info = g_strdup_printf("vms: Length field not valid");
- return -1;
- }
+ if ( (! pkt_len) && (p = strstr(line, "Length"))) {
+ p += sizeof("Length ");
+ while (*p && ! isdigit((guchar)*p))
+ p++;
+
+ if ( !*p ) {
+ *err = WTAP_ERR_BAD_FILE;
+ *err_info = g_strdup_printf("vms: Length field not valid");
+ return FALSE;
+ }
- pkt_len = atoi(p);
+ pkt_len = atoi(p);
break;
- }
+ }
} while (! isdumpline(line));
- if (wth) {
- p = strstr(months, mon);
- if (p)
- tm.tm_mon = (int) (p - months) / 3;
- tm.tm_year -= 1900;
-
- tm.tm_isdst = -1;
- wth->phdr.ts.secs = mktime(&tm);
- wth->phdr.ts.nsecs = csec * 10000000;
- wth->phdr.caplen = pkt_len;
- wth->phdr.len = pkt_len;
- }
+ p = strstr(months, mon);
+ if (p)
+ tm.tm_mon = (int) (p - months) / 3;
+ tm.tm_year -= 1900;
+ tm.tm_isdst = -1;
- return pkt_len;
-}
+ phdr->rec_type = REC_TYPE_PACKET;
+ phdr->presence_flags = WTAP_HAS_TS;
+ phdr->ts.secs = mktime(&tm);
+ phdr->ts.nsecs = csec * 10000000;
+ phdr->caplen = pkt_len;
+ phdr->len = pkt_len;
-/* Converts ASCII hex dump to binary data */
-static gboolean
-parse_vms_hex_dump(FILE_T fh, int pkt_len, guint8* buf, int *err,
- gchar **err_info)
-{
- gchar line[VMS_LINE_LENGTH + 1];
- int i;
- int offset = 0;
+ /* Make sure we have enough room for the packet */
+ ws_buffer_assure_space(buf, pkt_len);
+ pd = ws_buffer_start_ptr(buf);
+ /* Convert the ASCII hex dump to binary data */
for (i = 0; i < pkt_len; i += 16) {
- if (file_gets(line, VMS_LINE_LENGTH, fh) == NULL) {
- *err = file_error(fh);
- if (*err == 0) {
- *err = WTAP_ERR_SHORT_READ;
- }
- return FALSE;
- }
+ if (file_gets(line, VMS_LINE_LENGTH, fh) == NULL) {
+ *err = file_error(fh, err_info);
+ if (*err == 0) {
+ *err = WTAP_ERR_SHORT_READ;
+ }
+ return FALSE;
+ }
line[VMS_LINE_LENGTH] = '\0';
- if (i == 0) {
+ if (i == 0) {
while (! isdumpline(line)) { /* advance to start of hex data */
- if (file_gets(line, VMS_LINE_LENGTH, fh) == NULL) {
- *err = file_error(fh);
+ if (file_gets(line, VMS_LINE_LENGTH, fh) == NULL) {
+ *err = file_error(fh, err_info);
if (*err == 0) {
- *err = WTAP_ERR_SHORT_READ;
+ *err = WTAP_ERR_SHORT_READ;
}
return FALSE;
}
line[VMS_LINE_LENGTH] = '\0';
}
- while (line[offset] && !isxdigit((guchar)line[offset]))
- offset++;
+ while (line[offset] && !isxdigit((guchar)line[offset]))
+ offset++;
}
- if (!parse_single_hex_dump_line(line, buf, i,
+ if (!parse_single_hex_dump_line(line, pd, i,
offset, pkt_len - i)) {
- *err = WTAP_ERR_BAD_RECORD;
+ *err = WTAP_ERR_BAD_FILE;
*err_info = g_strdup_printf("vms: hex dump not valid");
- return FALSE;
- }
+ return FALSE;
+ }
}
/* Avoid TCPIPTRACE-W-BUFFERSFUL, TCPIPtrace could not save n packets.
- * errors. */
- file_gets(line, VMS_LINE_LENGTH, fh);
+ * errors.
+ *
+ * XXX - when we support packet drop report information in the
+ * Wiretap API, we should parse those lines and return "n" as
+ * a packet drop count. */
+ if (!file_gets(line, VMS_LINE_LENGTH, fh)) {
+ *err = file_error(fh, err_info);
+ if (*err == 0) {
+ /* There is no next line, so there's no "TCPIPtrace could not
+ * save n packets" line; not an error. */
+ return TRUE;
+ }
+ return FALSE;
+ }
return TRUE;
}
int i;
char *s;
int value;
- static int offsets[16] = {39,37,35,33,28,26,24,22,17,15,13,11,6,4,2,0};
+ static const int offsets[16] = {39,37,35,33,28,26,24,22,17,15,13,11,6,4,2,0};
char lbuf[3] = {0,0,0};
/* Get the byte_offset directly from the record */
s = rec;
- value = strtoul(s + 45 + in_off, NULL, 16);
+ value = (int)strtoul(s + 45 + in_off, NULL, 16); /* XXX - error check? */
if (value != byte_offset) {
- return FALSE;
+ return FALSE;
}
if (remaining > 16)
*/
for (i = 0; i < remaining; i++) {
- lbuf[0] = rec[offsets[i] + in_off];
- lbuf[1] = rec[offsets[i] + 1 + in_off];
+ lbuf[0] = rec[offsets[i] + in_off];
+ lbuf[1] = rec[offsets[i] + 1 + in_off];
- buf[byte_offset + i] = (guint8) strtoul(lbuf, NULL, 16);
+ buf[byte_offset + i] = (guint8) strtoul(lbuf, NULL, 16);
}
return TRUE;
git.samba.org / metze / wireshark / wip.git / blobdiff