/* packet-fc.c
* Routines for Fibre Channel Decoding (FC Header, Link Ctl & Basic Link Svc)
* Copyright 2001, Dinesh G Dutt <ddutt@cisco.com>
+ * Copyright 2003 Ronnie Sahlberg, exchange first/last matching and
+ * tap listener and misc updates
*
- * $Id: packet-fc.c,v 1.9 2003/06/24 15:37:29 sahlberg Exp $
+ * $Id: packet-fc.c,v 1.10 2003/06/25 10:21:44 sahlberg Exp $
*
* Ethereal - Network traffic analyzer
* By Gerald Combs <gerald@ethereal.com>
#include "packet-fc.h"
#include "packet-fclctl.h"
#include "packet-fcbls.h"
+#include "tap.h"
#define FC_HEADER_SIZE 24
#define FC_RCTL_EISL 0x50
static dissector_table_t fcftype_dissector_table;
static dissector_handle_t data_handle;
-
-#define FC_FCTL_EXCHANGE_RESPONDER 0x800000
-#define FC_FCTL_SEQ_RECIPIENT 0x400000
-#define FC_FCTL_EXCHANGE_FIRST 0x200000
-#define FC_FCTL_EXCHANGE_LAST 0x100000
-#define FC_FCTL_SEQ_LAST 0x080000
-#define FC_FCTL_PRIORITY 0x020000
-#define FC_FCTL_TRANSFER_SEQ_INITIATIVE 0x010000
-#define FC_FCTL_LAST_DATA_FRAME_MASK 0x00c000
-#define FC_FCTL_ACK_0_1_MASK 0x003000
-#define FC_FCTL_REXMITTED_SEQ 0x000200
-#define FC_FCTL_ABTS_MASK 0x000030
-#define FC_FCTL_REL_OFFSET 0x000008
-
+static int fc_tap = -1;
/* Reassembly stuff */
static gboolean fc_reassemble = TRUE;
static GHashTable *fc_fragment_table = NULL;
-/* structure and functions to keep track of first/last exchange
- frames and time deltas
-*/
-typedef struct _fc_exchange_data {
- guint32 s_id;
- guint32 d_id;
- guint16 oxid;
- guint32 first_exchange_frame;
- guint32 last_exchange_frame;
- nstime_t fc_time;
-} fc_exchange_data;
static GHashTable *fc_exchange_unmatched = NULL;
static GHashTable *fc_exchange_matched = NULL;
static GMemChunk *fc_exchange_vals = NULL;
{0, NULL},
};
-typedef struct _fc_hdr {
- guint32 s_id;
- guint32 d_id;
- guint32 fctl;
- guint8 type;
- guint16 seqcnt;
- guint16 oxid;
- guint16 rxid;
- guint8 r_ctl;
- guint8 cs_ctl;
-} fc_hdr;
static void fc_defragment_init(void)
{
fc_hdr fchdr;
fc_exchange_data *fc_ex=NULL;
+ fchdr.fced=NULL;
+
/* Make entries in Protocol column and Info column on summary display */
if (check_col(pinfo->cinfo, COL_PROTOCOL))
col_set_str(pinfo->cinfo, COL_PROTOCOL, "FC");
proto_tree_add_time(ti, hf_fc_time, tvb, 0, 0, &delta_time);
}
}
+ fchdr.fced=fc_ex;
if (ftype == FC_FTYPE_LINKCTL) {
/* the lower 4 bits of R_CTL indicate the type of link ctl frame */
proto_tree_add_item (fc_tree, hf_fc_seqid, tvb, offset+12, 1, FALSE);
df_ctl = tvb_get_guint8(tvb, offset+13);
- if (tree) {
- proto_tree_add_uint (fc_tree, hf_fc_dfctl, tvb, offset+13, 1, df_ctl);
- proto_tree_add_uint (fc_tree, hf_fc_seqcnt, tvb, offset+14, 2, fchdr.seqcnt);
- proto_tree_add_uint (fc_tree, hf_fc_oxid, tvb, offset+16, 2, fchdr.oxid);
- proto_tree_add_uint (fc_tree, hf_fc_rxid, tvb, offset+18, 2, fchdr.rxid);
-
- if (ftype == FC_FTYPE_LINKCTL) {
- if (((fchdr.r_ctl & 0x0F) == FC_LCTL_FRJT) ||
- ((fchdr.r_ctl & 0x0F) == FC_LCTL_PRJT) ||
- ((fchdr.r_ctl & 0x0F) == FC_LCTL_PBSY)) {
- /* In all these cases of Link Ctl frame, the parameter field
- * encodes the detailed error message
- */
- proto_tree_add_uint_format (fc_tree, hf_fc_param, tvb,
- offset+20, 4, param,
- "Parameter: 0x%x(%s)", param,
- fclctl_get_paramstr ((fchdr.r_ctl & 0x0F),
- param));
- }
- else {
- proto_tree_add_item (fc_tree, hf_fc_param, tvb, offset+20, 4, FALSE);
- }
- }
- else if (ftype == FC_FTYPE_BLS) {
- if ((fchdr.r_ctl & 0x0F) == FC_BLS_ABTS) {
- proto_tree_add_uint_format (fc_tree, hf_fc_param, tvb,
- offset+20, 4, param,
- "Parameter: 0x%x(%s)", param,
- ((param & 0x0F) == 1 ? "Abort Sequence" :
- "Abort Exchange"));
- }
- else {
- proto_tree_add_item (fc_tree, hf_fc_param, tvb, offset+20,
- 4, FALSE);
- }
- }
- else {
+
+ proto_tree_add_uint (fc_tree, hf_fc_dfctl, tvb, offset+13, 1, df_ctl);
+ proto_tree_add_uint (fc_tree, hf_fc_seqcnt, tvb, offset+14, 2, fchdr.seqcnt);
+ proto_tree_add_uint (fc_tree, hf_fc_oxid, tvb, offset+16, 2, fchdr.oxid);
+ proto_tree_add_uint (fc_tree, hf_fc_rxid, tvb, offset+18, 2, fchdr.rxid);
+
+ if (ftype == FC_FTYPE_LINKCTL) {
+ if (((fchdr.r_ctl & 0x0F) == FC_LCTL_FRJT) ||
+ ((fchdr.r_ctl & 0x0F) == FC_LCTL_PRJT) ||
+ ((fchdr.r_ctl & 0x0F) == FC_LCTL_PBSY)) {
+ /* In all these cases of Link Ctl frame, the parameter field
+ * encodes the detailed error message
+ */
+ proto_tree_add_uint_format (fc_tree, hf_fc_param, tvb,
+ offset+20, 4, param,
+ "Parameter: 0x%x(%s)", param,
+ fclctl_get_paramstr ((fchdr.r_ctl & 0x0F),
+ param));
+ } else {
proto_tree_add_item (fc_tree, hf_fc_param, tvb, offset+20, 4, FALSE);
}
+ } else if (ftype == FC_FTYPE_BLS) {
+ if ((fchdr.r_ctl & 0x0F) == FC_BLS_ABTS) {
+ proto_tree_add_uint_format (fc_tree, hf_fc_param, tvb,
+ offset+20, 4, param,
+ "Parameter: 0x%x(%s)", param,
+ ((param & 0x0F) == 1 ? "Abort Sequence" :
+ "Abort Exchange"));
+ } else {
+ proto_tree_add_item (fc_tree, hf_fc_param, tvb, offset+20,
+ 4, FALSE);
+ }
+ } else {
+ proto_tree_add_item (fc_tree, hf_fc_param, tvb, offset+20, 4, FALSE);
}
/* Skip the Frame_Header */
/* If there is an MDS header, we need to subtract the MDS trailer size */
if ((pinfo->ethertype == ETHERTYPE_UNK) || (pinfo->ethertype == ETHERTYPE_FCFT)) {
frag_size -= MDSHDR_TRAILER_SIZE;
- }
- else if (pinfo->ethertype == ETHERTYPE_BRDWALK) {
+ } else if (pinfo->ethertype == ETHERTYPE_BRDWALK) {
frag_size -= 8; /* 4 byte of FC CRC +
4 bytes of error+EOF = 8 bytes */
}
proto_tree_add_boolean_hidden (fc_tree, hf_fc_reassembled,
tvb, offset+9, 1, 1);
}
- }
- else {
+ } else {
if (tree) {
proto_tree_add_boolean_hidden (fc_tree, hf_fc_reassembled,
tvb, offset+9, 1, 0);
call_dissector (data_handle, next_tvb, pinfo, tree);
return;
}
- }
- else {
+ } else {
if (tree) {
proto_tree_add_boolean_hidden (fc_tree, hf_fc_reassembled,
tvb, offset+9, 1, 0);
pinfo, tree)) {
call_dissector (data_handle, next_tvb, pinfo, tree);
}
- }
- else if (ftype == FC_FTYPE_BLS) {
+ } else if (ftype == FC_FTYPE_BLS) {
if ((fchdr.r_ctl & 0x0F) == FC_BLS_BAACC) {
dissect_fc_ba_acc (next_tvb, pinfo, tree);
- }
- else if ((fchdr.r_ctl & 0x0F) == FC_BLS_BARJT) {
+ } else if ((fchdr.r_ctl & 0x0F) == FC_BLS_BARJT) {
dissect_fc_ba_rjt (next_tvb, pinfo, tree);
}
}
+
+ tap_queue_packet(fc_tap, pinfo, &fchdr);
}
/* Register the protocol name and description */
proto_fc = proto_register_protocol ("Fibre Channel", "FC", "fc");
register_dissector ("fc", dissect_fc, proto_fc);
+ fc_tap = register_tap("fc");
/* Required function calls to register the header fields and subtrees used */
proto_register_field_array(proto_fc, hf, array_length(hf));
git.samba.org / obnox / wireshark / wip.git / blobdiff