*
* 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.
*
*/
-#ifdef HAVE_CONFIG_H
#include "config.h"
-#endif
#include <stdlib.h>
#include <errno.h>
#include <string.h>
#include "atm.h"
#include "iptrace.h"
+#define IPTRACE_IFT_HF 0x3d /* Support for PERCS IP-HFI*/
+#define IPTRACE_IFT_IB 0xc7 /* IP over Infiniband. Number by IANA */
+
static gboolean iptrace_read_1_0(wtap *wth, int *err, gchar **err_info,
- long *data_offset);
-static gboolean iptrace_seek_read_1_0(wtap *wth, long seek_off,
- union wtap_pseudo_header *pseudo_header, guchar *pd, int packet_size,
+ gint64 *data_offset);
+static gboolean iptrace_seek_read_1_0(wtap *wth, gint64 seek_off,
+ struct wtap_pkthdr *phdr, guint8 *pd, int packet_size,
int *err, gchar **err_info);
static gboolean iptrace_read_2_0(wtap *wth, int *err, gchar **err_info,
- long *data_offset);
-static gboolean iptrace_seek_read_2_0(wtap *wth, long seek_off,
- union wtap_pseudo_header *pseudo_header, guchar *pd, int packet_size,
+ gint64 *data_offset);
+static gboolean iptrace_seek_read_2_0(wtap *wth, gint64 seek_off,
+ struct wtap_pkthdr *phdr, guint8 *pd, int packet_size,
int *err, gchar **err_info);
static int iptrace_read_rec_header(FILE_T fh, guint8 *header, int header_len,
- int *err);
+ int *err, gchar **err_info);
static gboolean iptrace_read_rec_data(FILE_T fh, guint8 *data_ptr,
- int packet_size, int *err);
+ int packet_size, int *err, gchar **err_info);
static void fill_in_pseudo_header(int encap, const guint8 *pd, guint32 len,
union wtap_pseudo_header *pseudo_header, guint8 *header);
static int wtap_encap_ift(unsigned int ift);
-int iptrace_open(wtap *wth, int *err, gchar **err_info _U_)
+int iptrace_open(wtap *wth, int *err, gchar **err_info)
{
int bytes_read;
char name[12];
errno = WTAP_ERR_CANT_READ;
- bytes_read = file_read(name, 1, 11, wth->fh);
+ bytes_read = file_read(name, 11, wth->fh);
if (bytes_read != 11) {
- *err = file_error(wth->fh);
- if (*err != 0)
+ *err = file_error(wth->fh, err_info);
+ if (*err != 0 && *err != WTAP_ERR_SHORT_READ)
return -1;
return 0;
}
- wth->data_offset += 11;
- name[11] = 0;
+ name[11] = '\0';
if (strcmp(name, "iptrace 1.0") == 0) {
wth->file_type = WTAP_FILE_IPTRACE_1_0;
wth->subtype_read = iptrace_read_1_0;
wth->subtype_seek_read = iptrace_seek_read_1_0;
+ wth->tsprecision = WTAP_FILE_TSPREC_SEC;
}
else if (strcmp(name, "iptrace 2.0") == 0) {
wth->file_type = WTAP_FILE_IPTRACE_2_0;
wth->subtype_read = iptrace_read_2_0;
wth->subtype_seek_read = iptrace_seek_read_2_0;
+ wth->tsprecision = WTAP_FILE_TSPREC_NSEC;
}
else {
return 0;
#define IPTRACE_1_0_PDATA_SIZE 22 /* packet data */
/* Read the next packet */
-static gboolean iptrace_read_1_0(wtap *wth, int *err, gchar **err_info _U_,
- long *data_offset)
+static gboolean iptrace_read_1_0(wtap *wth, int *err, gchar **err_info,
+ gint64 *data_offset)
{
int ret;
guint32 packet_size;
guint8 header[IPTRACE_1_0_PHDR_SIZE];
guint8 *data_ptr;
iptrace_1_0_phdr pkt_hdr;
- guchar fddi_padding[3];
+ guint8 fddi_padding[3];
/* Read the descriptor data */
- *data_offset = wth->data_offset;
+ *data_offset = file_tell(wth->fh);
ret = iptrace_read_rec_header(wth->fh, header, IPTRACE_1_0_PHDR_SIZE,
- err);
+ err, err_info);
if (ret <= 0) {
/* Read error or EOF */
return FALSE;
}
- wth->data_offset += IPTRACE_1_0_PHDR_SIZE;
/*
* Byte 28 of the frame header appears to be a BSD-style IFT_xxx
wth->phdr.pkt_encap = wtap_encap_ift(pkt_hdr.if_type);
/* Read the packet data */
- packet_size = pntohl(&header[0]) - IPTRACE_1_0_PDATA_SIZE;
+ packet_size = pntohl(&header[0]);
+ if (packet_size < IPTRACE_1_0_PDATA_SIZE) {
+ /*
+ * Uh-oh, the record isn't big enough to even have a
+ * packet meta-data header.
+ */
+ *err = WTAP_ERR_BAD_FILE;
+ *err_info = g_strdup_printf("iptrace: file has a %u-byte record, too small to have even a packet meta-data header",
+ packet_size);
+ return FALSE;
+ }
+ packet_size -= IPTRACE_1_0_PDATA_SIZE;
/*
* AIX appears to put 3 bytes of padding in front of FDDI
* The packet size is really a record size and includes
* the padding.
*/
+ if (packet_size < 3) {
+ /*
+ * Uh-oh, the record isn't big enough to even have
+ * the padding.
+ */
+ *err = WTAP_ERR_BAD_FILE;
+ *err_info = g_strdup_printf("iptrace: file has a %u-byte record, too small to have even a packet meta-data header",
+ packet_size + IPTRACE_1_0_PDATA_SIZE);
+ return FALSE;
+ }
packet_size -= 3;
- wth->data_offset += 3;
/*
* Read the padding.
*/
- if (!iptrace_read_rec_data(wth->fh, fddi_padding, 3, err))
+ if (!iptrace_read_rec_data(wth->fh, fddi_padding, 3, err,
+ err_info))
return FALSE; /* Read error */
}
+ if (packet_size > WTAP_MAX_PACKET_SIZE) {
+ /*
+ * Probably a corrupt capture file; don't blow up trying
+ * to allocate space for an immensely-large packet.
+ */
+ *err = WTAP_ERR_BAD_FILE;
+ *err_info = g_strdup_printf("iptrace: File has %u-byte packet, bigger than maximum of %u",
+ packet_size, WTAP_MAX_PACKET_SIZE);
+ return FALSE;
+ }
buffer_assure_space( wth->frame_buffer, packet_size );
data_ptr = buffer_start_ptr( wth->frame_buffer );
- if (!iptrace_read_rec_data(wth->fh, data_ptr, packet_size, err))
+ if (!iptrace_read_rec_data(wth->fh, data_ptr, packet_size, err,
+ err_info))
return FALSE; /* Read error */
- wth->data_offset += packet_size;
+ wth->phdr.presence_flags = WTAP_HAS_TS;
wth->phdr.len = packet_size;
wth->phdr.caplen = packet_size;
wth->phdr.ts.secs = pntohl(&header[4]);
/* Fill in the pseudo-header. */
fill_in_pseudo_header(wth->phdr.pkt_encap, data_ptr, wth->phdr.caplen,
- &wth->pseudo_header, header);
+ &wth->phdr.pseudo_header, header);
/* If the per-file encapsulation isn't known, set it to this
packet's encapsulation.
return TRUE;
}
-static gboolean iptrace_seek_read_1_0(wtap *wth, long seek_off,
- union wtap_pseudo_header *pseudo_header, guchar *pd, int packet_size,
- int *err, gchar **err_info _U_)
+static gboolean iptrace_seek_read_1_0(wtap *wth, gint64 seek_off,
+ struct wtap_pkthdr *phdr, guint8 *pd, int packet_size,
+ int *err, gchar **err_info)
{
+ union wtap_pseudo_header *pseudo_header = &phdr->pseudo_header;
int ret;
guint8 header[IPTRACE_1_0_PHDR_SIZE];
int pkt_encap;
- guchar fddi_padding[3];
+ guint8 fddi_padding[3];
if (file_seek(wth->random_fh, seek_off, SEEK_SET, err) == -1)
return FALSE;
/* Read the descriptor data */
ret = iptrace_read_rec_header(wth->random_fh, header,
- IPTRACE_1_0_PHDR_SIZE, err);
+ IPTRACE_1_0_PHDR_SIZE, err, err_info);
if (ret <= 0) {
/* Read error or EOF */
if (ret == 0) {
/*
* Read the padding.
*/
- if (!iptrace_read_rec_data(wth->random_fh, fddi_padding, 3, err))
+ if (!iptrace_read_rec_data(wth->random_fh, fddi_padding, 3,
+ err, err_info))
return FALSE; /* Read error */
}
/* Get the packet data */
- if (!iptrace_read_rec_data(wth->random_fh, pd, packet_size, err))
+ if (!iptrace_read_rec_data(wth->random_fh, pd, packet_size, err,
+ err_info))
return FALSE;
/* Fill in the pseudo_header. */
#define IPTRACE_2_0_PDATA_SIZE 32 /* packet data */
/* Read the next packet */
-static gboolean iptrace_read_2_0(wtap *wth, int *err, gchar **err_info _U_,
- long *data_offset)
+static gboolean iptrace_read_2_0(wtap *wth, int *err, gchar **err_info,
+ gint64 *data_offset)
{
int ret;
guint32 packet_size;
guint8 header[IPTRACE_2_0_PHDR_SIZE];
guint8 *data_ptr;
iptrace_2_0_phdr pkt_hdr;
- guchar fddi_padding[3];
+ guint8 fddi_padding[3];
/* Read the descriptor data */
- *data_offset = wth->data_offset;
+ *data_offset = file_tell(wth->fh);
ret = iptrace_read_rec_header(wth->fh, header, IPTRACE_2_0_PHDR_SIZE,
- err);
+ err, err_info);
if (ret <= 0) {
/* Read error or EOF */
return FALSE;
}
- wth->data_offset += IPTRACE_2_0_PHDR_SIZE;
/*
* Byte 28 of the frame header appears to be a BSD-style IFT_xxx
wth->phdr.pkt_encap = wtap_encap_ift(pkt_hdr.if_type);
/* Read the packet data */
- packet_size = pntohl(&header[0]) - IPTRACE_2_0_PDATA_SIZE;
+ packet_size = pntohl(&header[0]);
+ if (packet_size < IPTRACE_2_0_PDATA_SIZE) {
+ /*
+ * Uh-oh, the record isn't big enough to even have a
+ * packet meta-data header.
+ */
+ *err = WTAP_ERR_BAD_FILE;
+ *err_info = g_strdup_printf("iptrace: file has a %u-byte record, too small to have even a packet meta-data header",
+ packet_size);
+ return FALSE;
+ }
+ packet_size -= IPTRACE_2_0_PDATA_SIZE;
/*
* AIX appears to put 3 bytes of padding in front of FDDI
* The packet size is really a record size and includes
* the padding.
*/
+ if (packet_size < 3) {
+ /*
+ * Uh-oh, the record isn't big enough to even have
+ * the padding.
+ */
+ *err = WTAP_ERR_BAD_FILE;
+ *err_info = g_strdup_printf("iptrace: file has a %u-byte record, too small to have even a packet meta-data header",
+ packet_size + IPTRACE_2_0_PDATA_SIZE);
+ return FALSE;
+ }
packet_size -= 3;
- wth->data_offset += 3;
/*
* Read the padding.
*/
- if (!iptrace_read_rec_data(wth->fh, fddi_padding, 3, err))
+ if (!iptrace_read_rec_data(wth->fh, fddi_padding, 3, err,
+ err_info))
return FALSE; /* Read error */
}
+ if (packet_size > WTAP_MAX_PACKET_SIZE) {
+ /*
+ * Probably a corrupt capture file; don't blow up trying
+ * to allocate space for an immensely-large packet.
+ */
+ *err = WTAP_ERR_BAD_FILE;
+ *err_info = g_strdup_printf("iptrace: File has %u-byte packet, bigger than maximum of %u",
+ packet_size, WTAP_MAX_PACKET_SIZE);
+ return FALSE;
+ }
buffer_assure_space( wth->frame_buffer, packet_size );
data_ptr = buffer_start_ptr( wth->frame_buffer );
- if (!iptrace_read_rec_data(wth->fh, data_ptr, packet_size, err))
+ if (!iptrace_read_rec_data(wth->fh, data_ptr, packet_size, err,
+ err_info))
return FALSE; /* Read error */
- wth->data_offset += packet_size;
-
- /* AIX saves time in nsec, not usec. It's easier to make iptrace
- * files more Unix-compliant here than try to get the calling
- * program to know when to use nsec or usec */
+ wth->phdr.presence_flags = WTAP_HAS_TS;
wth->phdr.len = packet_size;
wth->phdr.caplen = packet_size;
wth->phdr.ts.secs = pntohl(&header[32]);
wth->phdr.ts.nsecs = pntohl(&header[36]);
+/* We used to error out if the interface in iptrace was unknown/unhandled,
+ * but an iptrace may contain packets from a variety of interfaces, ome known,
+ * and others unknown. It is better to display the data even for unknown interface
+ * types, isntead of erroring out. In the future, it would be nice to be able to
+ * flag which frames are shown as data because their interface type is unknown,
+ * and also preset the interface type number to the user so that it can be
+ * reported easily back to the Wireshark develoer.
+
if (wth->phdr.pkt_encap == WTAP_ENCAP_UNKNOWN) {
*err = WTAP_ERR_UNSUPPORTED_ENCAP;
*err_info = g_strdup_printf("iptrace: interface type IFT=0x%02x unknown or unsupported",
pkt_hdr.if_type);
return FALSE;
}
+*/
/* Fill in the pseudo-header. */
fill_in_pseudo_header(wth->phdr.pkt_encap, data_ptr, wth->phdr.caplen,
- &wth->pseudo_header, header);
+ &wth->phdr.pseudo_header, header);
/* If the per-file encapsulation isn't known, set it to this
packet's encapsulation.
return TRUE;
}
-static gboolean iptrace_seek_read_2_0(wtap *wth, long seek_off,
- union wtap_pseudo_header *pseudo_header, guchar *pd, int packet_size,
- int *err, gchar **err_info _U_)
+static gboolean iptrace_seek_read_2_0(wtap *wth, gint64 seek_off,
+ struct wtap_pkthdr *phdr, guint8 *pd, int packet_size,
+ int *err, gchar **err_info)
{
+ union wtap_pseudo_header *pseudo_header = &phdr->pseudo_header;
int ret;
guint8 header[IPTRACE_2_0_PHDR_SIZE];
int pkt_encap;
- guchar fddi_padding[3];
+ guint8 fddi_padding[3];
if (file_seek(wth->random_fh, seek_off, SEEK_SET, err) == -1)
return FALSE;
/* Read the descriptor data */
ret = iptrace_read_rec_header(wth->random_fh, header,
- IPTRACE_2_0_PHDR_SIZE, err);
+ IPTRACE_2_0_PHDR_SIZE, err, err_info);
if (ret <= 0) {
/* Read error or EOF */
if (ret == 0) {
/*
* Read the padding.
*/
- if (!iptrace_read_rec_data(wth->random_fh, fddi_padding, 3, err))
+ if (!iptrace_read_rec_data(wth->random_fh, fddi_padding, 3,
+ err, err_info))
return FALSE; /* Read error */
}
/* Get the packet data */
- if (!iptrace_read_rec_data(wth->random_fh, pd, packet_size, err))
+ if (!iptrace_read_rec_data(wth->random_fh, pd, packet_size, err,
+ err_info))
return FALSE;
/* Fill in the pseudo-header. */
}
static int
-iptrace_read_rec_header(FILE_T fh, guint8 *header, int header_len, int *err)
+iptrace_read_rec_header(FILE_T fh, guint8 *header, int header_len, int *err,
+ gchar **err_info)
{
int bytes_read;
errno = WTAP_ERR_CANT_READ;
- bytes_read = file_read(header, 1, header_len, fh);
+ bytes_read = file_read(header, header_len, fh);
if (bytes_read != header_len) {
- *err = file_error(fh);
+ *err = file_error(fh, err_info);
if (*err != 0)
return -1;
if (bytes_read != 0) {
}
static gboolean
-iptrace_read_rec_data(FILE_T fh, guint8 *data_ptr, int packet_size, int *err)
+iptrace_read_rec_data(FILE_T fh, guint8 *data_ptr, int packet_size, int *err,
+ gchar **err_info)
{
int bytes_read;
errno = WTAP_ERR_CANT_READ;
- bytes_read = file_read( data_ptr, 1, packet_size, fh );
+ bytes_read = file_read( data_ptr, packet_size, fh );
if (bytes_read != packet_size) {
- *err = file_error(fh);
+ *err = file_error(fh, err_info);
if (*err == 0)
*err = WTAP_ERR_SHORT_READ;
return FALSE;
decimal = strchr(if_text, '.');
if (decimal) {
*decimal = '\0';
- Vpi = strtoul(if_text, NULL, 10);
+ Vpi = (int)strtoul(if_text, NULL, 10);
decimal++;
- Vci = strtoul(decimal, NULL, 10);
+ Vci = (int)strtoul(decimal, NULL, 10);
}
/*
return ift_encap[ift];
}
else {
- return WTAP_ENCAP_UNKNOWN;
+ switch(ift) {
+ /* Infiniband*/
+ case IPTRACE_IFT_IB:
+ return WTAP_ENCAP_INFINIBAND;
+ break;
+
+ /* Host Fabric Interface */
+ case IPTRACE_IFT_HF:
+ /* The HFI interface on AIX provides raw IP
+ in the packet trace. It's unclear if the HFI
+ can be configured for any other protocol, and if
+ any field in the iptrace header indicates what
+ that protocol is. For now, we are hard-coding
+ this as RAW_IP, but if we find another iptrace file
+ using HFI that provides another protocol, we will
+ have to figure out which field in the iptrace file
+ encodes it. */
+ return WTAP_ENCAP_RAW_IP;
+ break;
+
+ default:
+ return WTAP_ENCAP_UNKNOWN;
+ }
}
}
git.samba.org / metze / wireshark / wip.git / blobdiff