/* iseries.c
+ *
+ * $Id$
*
* Wiretap Library
* Copyright (c) 2005 by Martin Warnes <Martin_Warnes@Stercomm.com>
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
-/*
+/*
* This module will read the contents of the iSeries (OS/400) Communication trace
* Both ASCII & Unicode formatted traces are supported.
*
*
* 1. Object protocol = ETHERNET (Default)
* 2. ASCII or UNICODE file formats.
- *
+ *
* The above can be acheived by passing option ASCII(*YES) with the trace command
*
*/
-/* iSeries header page
+/* iSeries header page
COMMUNICATIONS TRACE Title: OS400 - OS400 trace 10/28/05 11:44:50 Page: 1
Trace Description . . . . . : OS400 - OS400 trace
* Thereafter there will be a formated display of the IP and TCP headers as well as a hex string dump
* of the headers themselves displayed in the the "IP Header" and "TCP header" fields.
*
- * If the packet contains data this is displayed as 4 groups of 16 hex digits followed by an ASCII
+ * If the packet contains data this is displayed as 4 groups of 16 hex digits followed by an ASCII
* representaion of the data line.
*
* Information from the header line, IP header, TCP header and if available data lines are extracted
* by the module for displaying.
- *
*
- Record Data Record Controller Destination Source Frame
- Number S/R Length Timer Name MAC Address MAC Address Format
- ------ --- ------ --------------- ---------- ------------ ------------ ------
+ *
+ Record Data Record Controller Destination Source Frame
+ Number S/R Length Timer Name MAC Address MAC Address Format
+ ------ --- ------ --------------- ---------- ------------ ------------ ------
8 S 145 11:43:59.82956 0006299C14AE 0006299C14FE ETHV2 Type: 0800
Frame Type : IP DSCP: 0 ECN: 00-NECT Length: 145 Protocol: TCP Datagram ID: 388B
Src Addr: 10.20.144.150 Dest Addr: 10.20.144.151 Fragment Flags: DON'T,LAST
FC276228786B3EB0 EF34F5F1D27EF8DF 20926820E7B322AA 739F1FB20D **'B(XK>**4***.** *H **"*S*.*. *
*/
-/* iSeries unformatted packet record consist of the same header record as the formatted trace but all
+/* iSeries unformatted packet record consist of the same header record as the formatted trace but all
* other records are simply unformatted data containing IP, TCP and packet data combined.
*
Record Data Record Controller Destination Source Frame Number Number Poll/
/* UNICODE identification */
char unicodemagic[ISERIES_HDR_MAGIC_LEN] =
{ '\xFF', '\xFE', '\x20', '\x00', '\x43', '\x00', '\x4F', '\x00', '\x4D',
- '\x00', '\x4D', '\x00', '\x55', '\x00', '\x4E', '\x00', '\x49', '\x00',
+ '\x00', '\x4D', '\x00', '\x55', '\x00', '\x4E', '\x00', '\x49', '\x00',
'\x43', '\x00', '\x41'
};
/*
- * Check that file starts with a valid iSeries COMMS TRACE header
+ * Check that file starts with a valid iSeries COMMS TRACE header
*/
errno = WTAP_ERR_CANT_READ;
bytes_read = file_read (&magic, 1, sizeof magic, wth->fh);
return 0;
}
/*
- * Do some basic sanity checking to ensure we can handle the
- * contents of this trace
+ * Do some basic sanity checking to ensure we can handle the
+ * contents of this trace
*/
if (!iseries_check_file_type (wth, err, ISERIES_FORMAT_ASCII))
{
return 0;
}
/*
- * Do some basic sanity checking to ensure we can handle the
- * contents of this trace
+ * Do some basic sanity checking to ensure we can handle the
+ * contents of this trace
*/
if (!iseries_check_file_type (wth, err, ISERIES_FORMAT_UNICODE))
{
}
/*
- * Do some basic sanity checking to ensure we can handle the
+ * Do some basic sanity checking to ensure we can handle the
* contents of this trace by checking the header page for
- * requisit requirements and additional information.
+ * requisit requirements and additional information.
*/
static gboolean
iseries_check_file_type (wtap * wth, int *err, int format)
}
if (file_gets (buf, bytes_to_read, wth->fh) != NULL)
{
- /*
- * Check that we are dealing with an ETHERNET trace
+ /*
+ * Check that we are dealing with an ETHERNET trace
*/
if (wth->capture.iseries->format == ISERIES_FORMAT_UNICODE)
{
return FALSE;
}
- /*
+ /*
* Determine if the data has been formatted or not
*/
num_items_scanned = sscanf (buf,
}
}
- /*
+ /*
* The header is the only place where the date part of the timestamp is held, so
* extract it here and store for all packets to access
*/
return TRUE;
}
-/*
- * Find the next packet and parse it; called from wtap_read().
+/*
+ * Find the next packet and parse it; called from wtap_read().
*/
static gboolean
iseries_read (wtap * wth, int *err, gchar ** err_info, long *data_offset)
long offset;
int pkt_len;
- /*
- * Locate the next packet
+ /*
+ * Locate the next packet
*/
offset = iseries_seek_next_packet (wth, err);
if (offset < 1)
return FALSE;
- /*
- * Parse the packet and extract the various fields
+ /*
+ * Parse the packet and extract the various fields
*/
pkt_len =
iseries_parse_packet (wth, wth->fh, &wth->pseudo_header, NULL, err,
return TRUE;
}
-/*
+/*
* Seeks to the beginning of the next packet, and returns the
- * byte offset. Returns -1 on failure, and sets "*err" to the error.
+ * byte offset. Returns -1 on failure, and sets "*err" to the error.
*/
static long
iseries_seek_next_packet (wtap * wth, int *err)
{
return -1;
}
- /*
+ /*
* Seeks to the beginning of the next packet, and returns the
- * byte offset. Returns -1 on failure, and sets "*err" to the error.
+ * byte offset. Returns -1 on failure, and sets "*err" to the error.
*/
for (line = 0; line < ISERIES_MAX_TRACE_LEN; line++)
{
return -1;
}
-/*
- * Read packets in random-access fashion
+/*
+ * Read packets in random-access fashion
*/
static gboolean
iseries_seek_read (wtap * wth, long seek_off,
if (file_seek (wth->random_fh, seek_off - 1, SEEK_SET, err) == -1)
return FALSE;
- /*
- * Parse the packet and extract the various fields
+ /*
+ * Parse the packet and extract the various fields
*/
pkt_len = iseries_parse_packet (wth, wth->random_fh, pseudo_header, pd,
err, err_info);
{
return -1;
}
-
- /*
- * Check for packet headers in first 3 lines this should handle page breaks
+
+ /*
+ * Check for packet headers in first 3 lines this should handle page breaks
* situations and the header lines output at each page throw and ensure we
* read both the captured and packet lengths.
*/
{
/* OK! We found the packet header line */
isValid = TRUE;
- /*
+ /*
* XXX - The Capture length returned by the iSeries trace doesn't seem to include the src/dest MAC
* addresses or the packet type. So we add them here.
*/
}
}
- /*
+ /*
* If no packet header found we exit at this point and inform the user.
*/
if (!isValid)
return -1;
}
- /*
+ /*
* If we have Wiretap Header then populate it here
*
- * XXX - Timer resolution on the iSeries is hardware dependant, the value for csec may be
+ * XXX - Timer resolution on the iSeries is hardware dependant, the value for csec may be
* different on other platforms though all the traces I've seen seem so show resolution
* to 5 digits (i.e HH:MM:SS.nnnnn) so hopefully this will not require special handling
*/
pseudo_header->eth.fcs_len = -1;
}
- /*
+ /*
* Start Reading packet contents
*/
isCurrentPacket = TRUE;
TCPread = TRUE;
}
- /*
+ /*
* If there is data in the packet handle it here.
*
* The data header line will have the "Data . . " identifier, subsequent lines don't
* Scan the data line for data blocks, depending on the number of blocks scanned
* add them along with current tcpdata buffer to the work buffer and then copy
* work buffer to tcpdata buffer to continue building up tcpdata buffer to contain
- * a single hex string.
+ * a single hex string.
*/
switch (num_items_scanned)
{
memcpy (tcpdatabuf, workbuf, ISERIES_PKT_ALLOC_SIZE);
}
- /*
- * If we see the identifier for the next packet then rewind and set
- * isCurrentPacket FALSE
+ /*
+ * If we see the identifier for the next packet then rewind and set
+ * isCurrentPacket FALSE
*/
if ((strncmp (data + 80, ISERIES_PKT_MAGIC_STR, ISERIES_PKT_MAGIC_LEN)
== 0) && pktline > 1)
}
/*
- * For a formated trace ensure we have read at least the IP and TCP headers otherwise
+ * For a formated trace ensure we have read at least the IP and TCP headers otherwise
* exit and pass error message to user.
*/
if (wth->capture.iseries->tcp_formatted)
}
}
- /*
+ /*
* Create a buffer to hold all the ASCII Hex data and populate with all the
* extracted data.
*/
srcmac, type, ipheader, tcpheader);
}
- /*
- * Extract the packet length from the actual IP header, this may differ from the capture length
+ /*
+ * Extract the packet length from the actual IP header, this may differ from the capture length
* reported by the formatted trace
*/
num_items_scanned = sscanf (asciibuf + 32, "%4x", &pkt_len);
/*
* Return number of bytes to read from file based on Trace type
- *
+ *
*/
static int
iseries_bytes_to_read (wtap * wth)
{
int bytes_to_read = 0;
+ if (wth == NULL)
+ return -1;
+
/* Determine number of bytes to read from file based on trace format */
switch (wth->capture.iseries->format)
{
/*
* Simple routine to convert an UNICODE buffer to ASCII
- *
+ *
* XXX - This may be possible with iconv or similar
*/
static int
git.samba.org / obnox / wireshark / wip.git / commitdiff