/* packet-fc.c * Routines for Fibre Channel Decoding (FC Header, Link Ctl & Basic Link Svc) * Copyright 2001, Dinesh G Dutt * Copyright 2003 Ronnie Sahlberg, exchange first/last matching and * tap listener and misc updates * * $Id: packet-fc.c,v 1.18 2004/02/19 00:29:15 gerald Exp $ * * Ethereal - Network traffic analyzer * By Gerald Combs * Copyright 1998 Gerald Combs * * 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #ifdef HAVE_CONFIG_H # include "config.h" #endif #include #include #include #ifdef HAVE_SYS_TYPES_H # include #endif #ifdef HAVE_NETINET_IN_H # include #endif #include #ifdef NEED_SNPRINTF_H # include "snprintf.h" #endif #include #include "prefs.h" #include "reassemble.h" #include #include "etypes.h" #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 #define MDSHDR_TRAILER_SIZE 6 /* Size of various fields in FC header in bytes */ #define FC_RCTL_SIZE 1 #define FC_DID_SIZE 3 #define FC_CSCTL_SIZE 1 #define FC_SID_SIZE 3 #define FC_TYPE_SIZE 1 #define FC_FCTL_SIZE 3 #define FC_SEQID_SIZE 1 #define FC_DFCTL_SIZE 1 #define FC_SEQCNT_SIZE 2 #define FC_OXID_SIZE 2 #define FC_RXID_SIZE 2 #define FC_PARAM_SIZE 4 /* Initialize the protocol and registered fields */ static int proto_fc = -1; static int hf_fc_time = -1; static int hf_fc_exchange_first_frame = -1; static int hf_fc_exchange_last_frame = -1; static int hf_fc_rctl = -1; static int hf_fc_did = -1; static int hf_fc_csctl = -1; static int hf_fc_sid = -1; static int hf_fc_id = -1; static int hf_fc_type = -1; static int hf_fc_fctl = -1; static int hf_fc_fctl_exchange_responder = -1; static int hf_fc_fctl_seq_recipient = -1; static int hf_fc_fctl_exchange_first = -1; static int hf_fc_fctl_exchange_last = -1; static int hf_fc_fctl_seq_last = -1; static int hf_fc_fctl_priority = -1; static int hf_fc_fctl_transfer_seq_initiative = -1; static int hf_fc_fctl_rexmitted_seq = -1; static int hf_fc_fctl_rel_offset = -1; static int hf_fc_fctl_abts_ack = -1; static int hf_fc_fctl_abts_not_ack = -1; static int hf_fc_fctl_last_data_frame = -1; static int hf_fc_fctl_ack_0_1 = -1; static int hf_fc_seqid = -1; static int hf_fc_dfctl = -1; static int hf_fc_seqcnt = -1; static int hf_fc_oxid = -1; static int hf_fc_rxid = -1; static int hf_fc_param = -1; static int hf_fc_ftype = -1; /* Derived field, non-existent in FC hdr */ static int hf_fc_reassembled = -1; static int hf_fc_eisl = -1; /* Network_Header fields */ static int hf_fc_nh_da = -1; static int hf_fc_nh_sa = -1; /* For Basic Link Svc */ static int hf_fc_bls_seqid_vld = -1; static int hf_fc_bls_lastvld_seqid = -1; static int hf_fc_bls_oxid = -1; static int hf_fc_bls_rxid = -1; static int hf_fc_bls_lowseqcnt = -1; static int hf_fc_bls_hiseqcnt = -1; static int hf_fc_bls_rjtcode = -1; static int hf_fc_bls_rjtdetail = -1; static int hf_fc_bls_vendor = -1; /* Initialize the subtree pointers */ static gint ett_fc = -1; static gint ett_fctl = -1; static gint ett_fcbls = -1; static dissector_table_t fcftype_dissector_table; static dissector_handle_t data_handle; static int fc_tap = -1; /* Reassembly stuff */ static gboolean fc_reassemble = TRUE; static guint32 fc_max_frame_size = 1024; static GHashTable *fc_fragment_table = NULL; typedef struct _fcseq_conv_key { guint32 conv_idx; } fcseq_conv_key_t; typedef struct _fcseq_conv_data { guint32 seq_cnt; } fcseq_conv_data_t; GHashTable *fcseq_req_hash = NULL; GMemChunk *fcseq_req_keys = NULL; GMemChunk *fcseq_req_vals = NULL; guint32 fcseq_init_count = 25; static GHashTable *fc_exchange_unmatched = NULL; static GHashTable *fc_exchange_matched = NULL; static GMemChunk *fc_exchange_vals = NULL; static guint32 fc_exchange_init_count = 200; /* * Hash Functions */ static gint fcseq_equal(gconstpointer v, gconstpointer w) { fcseq_conv_key_t *v1 = (fcseq_conv_key_t *)v; fcseq_conv_key_t *v2 = (fcseq_conv_key_t *)w; return (v1->conv_idx == v2->conv_idx); } static guint fcseq_hash (gconstpointer v) { fcseq_conv_key_t *key = (fcseq_conv_key_t *)v; guint val; val = key->conv_idx; return val; } static guint fc_exchange_hash_unmatched(gconstpointer v) { const fc_exchange_data *fced=(const fc_exchange_data *)v; return fced->oxid; } static gint fc_exchange_equal_unmatched(gconstpointer v1, gconstpointer v2) { const fc_exchange_data *fced1=(const fc_exchange_data *)v1; const fc_exchange_data *fced2=(const fc_exchange_data *)v2; /* oxid must match */ if(fced1->oxid!=fced2->oxid){ return 0; } /* compare s_id, d_id and treat the fc address s_id==00.00.00 as a wildcard matching anything */ if( ((fced1->s_id.data[0]!=0)||(fced1->s_id.data[1]!=0)||(fced1->s_id.data[2]!=0)) && CMP_ADDRESS(&fced1->s_id, &fced2->s_id) ){ return 0; } if(CMP_ADDRESS(&fced1->d_id, &fced2->d_id)){ return 0; } return 1; } static guint fc_exchange_hash_matched(gconstpointer v) { const fc_exchange_data *fced=(const fc_exchange_data *)v; return fced->oxid; } static gint fc_exchange_equal_matched(gconstpointer v1, gconstpointer v2) { const fc_exchange_data *fced1=(const fc_exchange_data *)v1; const fc_exchange_data *fced2=(const fc_exchange_data *)v2; guint32 fef1, fef2, lef1, lef2; /* oxid must match */ if(fced1->oxid!=fced2->oxid){ return 0; } fef1=fced1->first_exchange_frame; fef2=fced2->first_exchange_frame; lef1=fced1->last_exchange_frame; lef2=fced2->last_exchange_frame; if(!fef1)fef1=fef2; if(!fef2)fef2=fef1; if(!lef1)lef1=lef2; if(!lef2)lef2=lef1; if(fef1!=fef2){ return 0; } if(lef1!=lef2){ return 0; } return 1; } static void fc_exchange_init_protocol(void) { if(fc_exchange_vals){ g_mem_chunk_destroy(fc_exchange_vals); fc_exchange_vals=NULL; } if(fc_exchange_unmatched){ g_hash_table_destroy(fc_exchange_unmatched); fc_exchange_unmatched=NULL; } if(fc_exchange_matched){ g_hash_table_destroy(fc_exchange_matched); fc_exchange_matched=NULL; } fc_exchange_unmatched=g_hash_table_new(fc_exchange_hash_unmatched, fc_exchange_equal_unmatched); fc_exchange_matched=g_hash_table_new(fc_exchange_hash_matched, fc_exchange_equal_matched); fc_exchange_vals=g_mem_chunk_new("fc_exchange_vals", sizeof(fc_exchange_data), fc_exchange_init_count*sizeof(fc_exchange_data), G_ALLOC_AND_FREE); fragment_table_init(&fc_fragment_table); if (fcseq_req_keys) g_mem_chunk_destroy (fcseq_req_keys); if (fcseq_req_vals) g_mem_chunk_destroy (fcseq_req_vals); if (fcseq_req_hash) g_hash_table_destroy(fcseq_req_hash); fcseq_req_hash = g_hash_table_new(fcseq_hash, fcseq_equal); fcseq_req_keys = g_mem_chunk_new ("fcseq_req_keys", sizeof(fcseq_conv_key_t), fcseq_init_count * sizeof(fcseq_conv_key_t), G_ALLOC_AND_FREE); fcseq_req_vals = g_mem_chunk_new ("fcseq_req_vals", sizeof(fcseq_conv_data_t), fcseq_init_count * sizeof(fcseq_conv_data_t), G_ALLOC_AND_FREE); } const value_string fc_fc4_val[] = { {FC_TYPE_ELS, "Ext Link Svc"}, {FC_TYPE_LLCSNAP, "LLC_SNAP"}, {FC_TYPE_IP, "IP/FC"}, {FC_TYPE_SCSI, "FCP"}, {FC_TYPE_FCCT, "FC_CT"}, {FC_TYPE_SWILS, "SW_ILS"}, {FC_TYPE_AL, "AL"}, {FC_TYPE_SNMP, "SNMP"}, {FC_TYPE_SB_FROM_CU, "SB-3(CU->Channel)"}, {FC_TYPE_SB_TO_CU, "SB-3(Channel->CU)"}, {0, NULL}, }; static const value_string fc_ftype_vals [] = { {FC_FTYPE_UNDEF , "Unknown frame"}, {FC_FTYPE_SWILS, "SW_ILS"}, {FC_FTYPE_IP , "IP/FC"}, {FC_FTYPE_SCSI , "FCP"}, {FC_FTYPE_BLS , "Basic Link Svc"}, {FC_FTYPE_ELS , "ELS"}, {FC_FTYPE_FCCT , "FC_CT"}, {FC_FTYPE_LINKDATA, "Link Data"}, {FC_FTYPE_VDO, "Video Data"}, {FC_FTYPE_LINKCTL, "Link Ctl"}, {FC_FTYPE_SBCCS, "SBCCS"}, {0, NULL}, }; static const value_string fc_wka_vals[] = { {FC_WKA_MULTICAST, "Multicast Server"}, {FC_WKA_CLKSYNC, "Clock Sync Server"}, {FC_WKA_KEYDIST, "Key Distribution Server"}, {FC_WKA_ALIAS, "Alias Server"}, {FC_WKA_QOSF, "QoS Facilitator"}, {FC_WKA_MGMT, "Management Server"}, {FC_WKA_TIME, "Time Server"}, {FC_WKA_DNS, "Directory Server"}, {FC_WKA_FABRIC_CTRLR, "Fabric Ctlr"}, {FC_WKA_FPORT, "F_Port Server"}, {FC_WKA_BCAST, "Broadcast ID"}, {0, NULL}, }; static const value_string fc_routing_val[] = { {FC_RCTL_DEV_DATA, "Device_Data"}, {FC_RCTL_ELS, "Extended Link Services"}, {FC_RCTL_LINK_DATA, "FC-4 Link_Data"}, {FC_RCTL_VIDEO, "Video_Data"}, {FC_RCTL_BLS, "Basic Link Services"}, {FC_RCTL_LINK_CTL, "Link_Control Frame"}, {0, NULL}, }; static const value_string fc_iu_val[] = { {FC_IU_UNCATEGORIZED , "Uncategorized Data"}, {FC_IU_SOLICITED_DATA , "Solicited Data"}, {FC_IU_UNSOLICITED_CTL , "Unsolicited Control"}, {FC_IU_SOLICITED_CTL , "Solicited Control"}, {FC_IU_UNSOLICITED_DATA, "Solicited Data"}, {FC_IU_DATA_DESCRIPTOR , "Data Descriptor"}, {FC_IU_UNSOLICITED_CMD , "Unsolicited Command"}, {FC_IU_CMD_STATUS , "Command Status"}, {0, NULL}, }; static void fc_defragment_init(void) { fragment_table_init(&fc_fragment_table); } static gchar * fctl_to_str (const guint8 *fctl, gchar *str, gboolean is_ack) { int stroff = 0; guint8 tmp = 0; if (str == NULL) return (str); if (fctl[2] & 0x80) { strcpy (str, "Exchange Responder, "); stroff += 20; } else { strcpy (str, "Exchange Originator, "); stroff += 21; } if (fctl[2] & 0x40) { strcpy (&str[stroff], "Seq Recipient, "); stroff += 15; } else { strcpy (&str[stroff], "Seq Initiator, "); stroff += 15; } if (fctl[2] & 0x20) { strcpy (&str[stroff], "Exchg First, "); stroff += 13; } if (fctl[2] & 0x10) { strcpy (&str[stroff], "Exchg Last, "); stroff += 12; } if (fctl[2] & 0x8) { strcpy (&str[stroff], "Seq Last, "); stroff += 10; } if (fctl[2] & 0x2) { strcpy (&str[stroff], "Priority, "); stroff += 10; } else { strcpy (&str[stroff], "CS_CTL, "); stroff += 8; } if (fctl[2] & 0x1) { strcpy (&str[stroff], "Transfer Seq Initiative, "); stroff += 25; } if (fctl[1] & 0x30) { strcpy (&str[stroff], "ACK_0 Reqd, "); stroff += 12; } else if (fctl[1] & 0x10) { strcpy (&str[stroff], "ACK_1 Reqd, "); stroff += 12; } if (fctl[1] & 0x2) { strcpy (&str[stroff], "Rexmitted Seq, "); stroff += 15; } tmp = fctl[0] & 0xC0; switch (tmp) { case 0: strcpy (&str[stroff], "Last Data Frame - No Info, "); stroff += 27; break; case 1: strcpy (&str[stroff], "Last Data Frame - Seq Imm, "); stroff += 27; break; case 2: strcpy (&str[stroff], "Last Data Frame - Seq Soon, "); stroff += 28; break; case 3: strcpy (&str[stroff], "Last Data Frame - Seq Delyd, "); stroff += 29; break; } tmp = fctl[0] & 0x30; switch (tmp) { case 0: if (is_ack) { strcpy (&str[stroff], "ABTS - Cont, "); stroff += 13; } else { strcpy (&str[stroff], "ABTS - Abort/MS, "); stroff += 17; } break; case 0x10: if (is_ack) { strcpy (&str[stroff], "ABTS - AbortABTS - Abort, "); stroff += 14; } else { strcpy (&str[stroff], "ABTS - Abort/SS, "); stroff += 17; } break; case 0x20: if (is_ack) { strcpy (&str[stroff], "ABTS - Stop, "); stroff += 13; } else { strcpy (&str[stroff], "ABTS - Process/IB, "); stroff += 19; } break; case 0x30: if (is_ack) { strcpy (&str[stroff], "ABTS - Imm Seq Retx, "); stroff += 21; } else { strcpy (&str[stroff], "ABTS - Discard/MS/Imm Retx, "); stroff += 28; } break; } if (fctl[0] & 0x8) { strcpy (&str[stroff], "Rel Offset = 1"); stroff += 14; } return (str); } /* BA_ACC & BA_RJT are decoded in this file itself instead of a traditional * dedicated file and dissector format because the dissector would require some * fields of the FC_HDR such as param in some cases, type in some others, the * lower 4 bits of r_ctl in some other cases etc. So, we decode BLS & Link Ctl * in this file itself. */ static void dissect_fc_ba_acc (tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree) { /* Set up structures needed to add the protocol subtree and manage it */ proto_item *ti; proto_tree *acc_tree; int offset = 0; /* 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, "BLS"); if (check_col(pinfo->cinfo, COL_INFO)) col_set_str(pinfo->cinfo, COL_INFO, "BA_ACC"); if (tree) { ti = proto_tree_add_text (tree, tvb, 0, tvb_length (tvb), "Basic Link Svc"); acc_tree = proto_item_add_subtree (ti, ett_fcbls); proto_tree_add_item (acc_tree, hf_fc_bls_seqid_vld, tvb, offset++, 1, FALSE); proto_tree_add_item (acc_tree, hf_fc_bls_lastvld_seqid, tvb, offset++, 1, FALSE); offset += 2; /* Skip reserved field */ proto_tree_add_item (acc_tree, hf_fc_bls_oxid, tvb, offset, 2, FALSE); offset += 2; proto_tree_add_item (acc_tree, hf_fc_bls_rxid, tvb, offset, 2, FALSE); offset += 2; proto_tree_add_item (acc_tree, hf_fc_bls_lowseqcnt, tvb, offset, 2, FALSE); offset += 2; proto_tree_add_item (acc_tree, hf_fc_bls_hiseqcnt, tvb, offset, 2, FALSE); } } static void dissect_fc_ba_rjt (tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree) { /* Set up structures needed to add the protocol subtree and manage it */ proto_item *ti; proto_tree *rjt_tree; int offset = 0; /* 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, "BLS"); if (check_col(pinfo->cinfo, COL_INFO)) col_set_str(pinfo->cinfo, COL_INFO, "BA_RJT"); if (tree) { ti = proto_tree_add_text (tree, tvb, 0, tvb_length (tvb), "Basic Link Svc"); rjt_tree = proto_item_add_subtree (ti, ett_fcbls); proto_tree_add_item (rjt_tree, hf_fc_bls_rjtcode, tvb, offset+1, 1, FALSE); proto_tree_add_item (rjt_tree, hf_fc_bls_rjtdetail, tvb, offset+2, 1, FALSE); proto_tree_add_item (rjt_tree, hf_fc_bls_vendor, tvb, offset+3, 1, FALSE); } } static guint8 fc_get_ftype (guint8 r_ctl, guint8 type) { /* A simple attempt to determine the upper level protocol based on the * r_ctl & type fields. */ switch (r_ctl & 0xF0) { case FC_RCTL_DEV_DATA: switch (type) { case FC_TYPE_SWILS: if ((r_ctl == 0x2) || (r_ctl == 0x3)) return FC_FTYPE_SWILS; else return FC_FTYPE_UNDEF; case FC_TYPE_IP: return FC_FTYPE_IP; case FC_TYPE_SCSI: return FC_FTYPE_SCSI; case FC_TYPE_FCCT: return FC_FTYPE_FCCT; case FC_TYPE_SB_FROM_CU: case FC_TYPE_SB_TO_CU: return FC_FTYPE_SBCCS; default: return FC_FTYPE_UNDEF; } break; case FC_RCTL_ELS: if (((r_ctl & 0x0F) == 0x2) || ((r_ctl & 0x0F) == 0x3)) return FC_FTYPE_ELS; else return FC_FTYPE_UNDEF; break; case FC_RCTL_LINK_DATA: return FC_FTYPE_LINKDATA; break; case FC_RCTL_VIDEO: return FC_FTYPE_VDO; break; case FC_RCTL_BLS: if (type == 0) return FC_FTYPE_BLS; else return FC_FTYPE_UNDEF; break; case FC_RCTL_LINK_CTL: return FC_FTYPE_LINKCTL; break; default: return FC_FTYPE_UNDEF; break; } } static const value_string abts_ack_vals[] = { {0x000000, "ABTS - Cont"}, {0x000010, "ABTS - Abort"}, {0x000020, "ABTS - Stop"}, {0x000030, "ABTS - Imm Seq Retx"}, {0,NULL} }; static const value_string abts_not_ack_vals[] = { {0x000000, "ABTS - Abort/MS"}, {0x000010, "ABTS - Abort/SS"}, {0x000020, "ABTS - Process/IB"}, {0x000030, "ABTS - Discard/MS/Imm Retx"}, {0,NULL} }; static const value_string last_data_frame_vals[] = { {0x000000, "Last Data Frame - No Info"}, {0x004000, "Last Data Frame - Seq Imm"}, {0x008000, "Last Data Frame - Seq Soon"}, {0x00c000, "Last Data Frame - Seq Delyd"}, {0,NULL} }; static const value_string ack_0_1_vals[] = { {0x003000, "ACK_0 Required"}, {0x002000, "ACK_0 Required"}, {0x001000, "ACK_1 Required"}, {0x000000, "no ack required"}, {0,NULL} }; static const true_false_string tfs_fc_fctl_exchange_responder = { "Exchange Responder", "Exchange Originator" }; static const true_false_string tfs_fc_fctl_seq_recipient = { "Seq Recipient", "Seq Initiator" }; static const true_false_string tfs_fc_fctl_exchange_first = { "Exchg First", "NOT exchg first" }; static const true_false_string tfs_fc_fctl_exchange_last = { "Exchg Last", "NOT exchg last" }; static const true_false_string tfs_fc_fctl_seq_last = { "Seq Last", "NOT seq last" }; static const true_false_string tfs_fc_fctl_priority = { "Priority", "CS_CTL" }; static const true_false_string tfs_fc_fctl_transfer_seq_initiative = { "Transfer Seq Initiative", "NOT transfer seq initiative" }; static const true_false_string tfs_fc_fctl_rexmitted_seq = { "Retransmitted Sequence", "NOT retransmitted sequence" }; static const true_false_string tfs_fc_fctl_rel_offset = { "Rel Offset SET", "rel offset NOT set" }; /* code to dissect the F_CTL bitmask */ static void dissect_fc_fctl(packet_info *pinfo _U_, proto_tree *parent_tree, tvbuff_t *tvb, int offset, gboolean is_ack, guint32 fctl) { proto_item *item; proto_tree *tree; gchar str[256]; item=proto_tree_add_uint(parent_tree, hf_fc_fctl, tvb, offset, 3, fctl); tree=proto_item_add_subtree(item, ett_fctl); proto_tree_add_boolean(tree, hf_fc_fctl_exchange_responder, tvb, offset, 3, fctl); proto_tree_add_boolean(tree, hf_fc_fctl_seq_recipient, tvb, offset, 3, fctl); proto_tree_add_boolean(tree, hf_fc_fctl_exchange_first, tvb, offset, 3, fctl); proto_tree_add_boolean(tree, hf_fc_fctl_exchange_last, tvb, offset, 3, fctl); proto_tree_add_boolean(tree, hf_fc_fctl_seq_last, tvb, offset, 3, fctl); proto_tree_add_boolean(tree, hf_fc_fctl_priority, tvb, offset, 3, fctl); proto_tree_add_boolean(tree, hf_fc_fctl_transfer_seq_initiative, tvb, offset, 3, fctl); proto_tree_add_uint(tree, hf_fc_fctl_last_data_frame, tvb, offset, 3, fctl); proto_tree_add_uint(tree, hf_fc_fctl_ack_0_1, tvb, offset, 3, fctl); proto_tree_add_boolean(tree, hf_fc_fctl_rexmitted_seq, tvb, offset, 3, fctl); if(is_ack){ proto_tree_add_uint(tree, hf_fc_fctl_abts_ack, tvb, offset, 3, fctl); } else { proto_tree_add_uint(tree, hf_fc_fctl_abts_ack, tvb, offset, 3, fctl); } proto_tree_add_boolean(tree, hf_fc_fctl_rel_offset, tvb, offset, 3, fctl); fctl_to_str( ((guint8 *)&fctl), str, is_ack); proto_item_append_text(item, " %s", str); } static const value_string fc_bls_proto_val[] = { {FC_BLS_NOP , "NOP"}, {FC_BLS_ABTS , "ABTS"}, {FC_BLS_RMC , "RMC"}, {FC_BLS_BAACC , "BA_ACC"}, {FC_BLS_BARJT , "BA_RJT"}, {FC_BLS_PRMT , "PRMT"}, {0, NULL}, }; static const value_string fc_els_proto_val[] = { {0x01 , "Solicited Data"}, {0x02 , "Request"}, {0x03 , "Reply"}, {0, NULL}, }; /* Code to actually dissect the packets */ static void dissect_fc (tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree) { /* Set up structures needed to add the protocol subtree and manage it */ proto_item *ti=NULL; proto_tree *fc_tree = NULL; tvbuff_t *next_tvb; int offset = 0, next_offset, eisl_offset = -1; gboolean is_lastframe_inseq, is_1frame_inseq, is_valid_frame; gboolean is_exchg_resp = 0; fragment_data *fcfrag_head; guint32 frag_id; guint32 frag_size; guint8 df_ctl, seq_id; guint32 param; guint16 real_seqcnt; guint8 ftype; gboolean is_ack; static fc_hdr fchdr; fc_exchange_data *fc_ex=NULL; conversation_t *conversation; fcseq_conv_data_t *cdata; fcseq_conv_key_t ckey, *req_key; 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"); fchdr.r_ctl = tvb_get_guint8 (tvb, offset); /* If the R_CTL is the EISL field, skip the first 8 bytes to retrieve the * real FC header. EISL is Cisco-proprietary and is not decoded. */ if (fchdr.r_ctl == FC_RCTL_EISL) { eisl_offset = offset; offset += 8; fchdr.r_ctl = tvb_get_guint8 (tvb, offset); } SET_ADDRESS (&pinfo->dst, AT_FC, 3, tvb_get_ptr(tvb,offset+1,3)); SET_ADDRESS (&fchdr.d_id, AT_FC, 3, tvb_get_ptr(tvb,offset+1,3)); SET_ADDRESS (&pinfo->src, AT_FC, 3, tvb_get_ptr(tvb,offset+5,3)); SET_ADDRESS (&fchdr.s_id, AT_FC, 3, tvb_get_ptr(tvb,offset+5,3)); fchdr.cs_ctl = tvb_get_guint8 (tvb, offset+4); fchdr.type = tvb_get_guint8 (tvb, offset+8); fchdr.fctl=tvb_get_ntoh24(tvb,offset+9); fchdr.seqcnt = tvb_get_ntohs (tvb, offset+14); fchdr.oxid=tvb_get_ntohs(tvb,offset+16); fchdr.rxid=tvb_get_ntohs(tvb,offset+18); param = tvb_get_ntohl (tvb, offset+20); seq_id = tvb_get_guint8 (tvb, offset+12); pinfo->oxid = fchdr.oxid; pinfo->rxid = fchdr.rxid; pinfo->ptype = PT_EXCHG; pinfo->r_ctl = fchdr.r_ctl; is_ack = ((fchdr.r_ctl == 0xC0) || (fchdr.r_ctl == 0xC1)); /* There are two ways to determine if this is the first frame of a * sequence. Either: * (i) The SOF bits indicate that this is the first frame OR * (ii) This is an SOFf frame and seqcnt is 0. */ is_1frame_inseq = (((pinfo->sof_eof & PINFO_SOF_FIRST_FRAME) == PINFO_SOF_FIRST_FRAME) || (((pinfo->sof_eof & PINFO_SOF_SOFF) == PINFO_SOF_SOFF) && (fchdr.seqcnt == 0))); is_lastframe_inseq = ((pinfo->sof_eof & PINFO_EOF_LAST_FRAME) == PINFO_EOF_LAST_FRAME); if ((pinfo->sof_eof & PINFO_SOF_SOFF) == PINFO_SOF_SOFF) { is_lastframe_inseq = fchdr.fctl & FC_FCTL_SEQ_LAST; } is_valid_frame = ((pinfo->sof_eof & 0x40) == 0x40); ftype = fc_get_ftype (fchdr.r_ctl, fchdr.type); if (check_col (pinfo->cinfo, COL_INFO)) { col_add_str (pinfo->cinfo, COL_INFO, match_strval (ftype, fc_ftype_vals)); if (ftype == FC_FTYPE_LINKCTL) col_append_fstr (pinfo->cinfo, COL_INFO, ", %s", match_strval ((fchdr.r_ctl & 0x0F), fc_lctl_proto_val)); } /* In the interest of speed, if "tree" is NULL, don't do any work not necessary to generate protocol tree items. */ if (tree) { ti = proto_tree_add_protocol_format (tree, proto_fc, tvb, offset, FC_HEADER_SIZE, "Fibre Channel"); fc_tree = proto_item_add_subtree (ti, ett_fc); } /* Highlight EISL header, if present */ if (eisl_offset != -1) { proto_tree_add_item (fc_tree, hf_fc_eisl, tvb, eisl_offset, 8, 0); } /* match first exchange with last exchange */ if(fchdr.fctl&FC_FCTL_EXCHANGE_FIRST){ if(!pinfo->fd->flags.visited){ fc_exchange_data fced, *old_fced; /* first check if we already have seen this exchange and it is still open/unmatched. */ fced.oxid=fchdr.oxid; SET_ADDRESS(&fced.s_id, fchdr.s_id.type, fchdr.s_id.len, fchdr.s_id.data); SET_ADDRESS(&fced.d_id, fchdr.d_id.type, fchdr.d_id.len, fchdr.d_id.data); old_fced=g_hash_table_lookup(fc_exchange_unmatched, &fced); if(old_fced){ g_hash_table_remove(fc_exchange_unmatched, old_fced); } old_fced=g_mem_chunk_alloc(fc_exchange_vals); old_fced->oxid=fchdr.oxid; COPY_ADDRESS(&old_fced->s_id, &fchdr.s_id); COPY_ADDRESS(&old_fced->d_id, &fchdr.d_id); old_fced->first_exchange_frame=pinfo->fd->num; old_fced->fc_time.nsecs = pinfo->fd->abs_usecs*1000; old_fced->fc_time.secs = pinfo->fd->abs_secs; g_hash_table_insert(fc_exchange_unmatched, old_fced, old_fced); fc_ex=old_fced; } else { fc_exchange_data fced, *old_fced; fced.oxid=fchdr.oxid; fced.first_exchange_frame=pinfo->fd->num; fced.last_exchange_frame=0; old_fced=g_hash_table_lookup(fc_exchange_matched, &fced); fc_ex=old_fced; } } if(fchdr.fctl&FC_FCTL_EXCHANGE_LAST){ if(!pinfo->fd->flags.visited){ fc_exchange_data fced, *old_fced; fced.oxid=fchdr.oxid; SET_ADDRESS(&fced.s_id, fchdr.d_id.type, fchdr.d_id.len, fchdr.d_id.data); SET_ADDRESS(&fced.d_id, fchdr.s_id.type, fchdr.s_id.len, fchdr.s_id.data); old_fced=g_hash_table_lookup(fc_exchange_unmatched, &fced); if(old_fced){ g_hash_table_remove(fc_exchange_unmatched, old_fced); old_fced->last_exchange_frame=pinfo->fd->num; g_hash_table_insert(fc_exchange_matched, old_fced, old_fced); } fc_ex=old_fced; } else { fc_exchange_data fced, *old_fced; fced.oxid=fchdr.oxid; fced.first_exchange_frame=0; fced.last_exchange_frame=pinfo->fd->num; old_fced=g_hash_table_lookup(fc_exchange_matched, &fced); fc_ex=old_fced; } } if(fc_ex){ if(fchdr.fctl&FC_FCTL_EXCHANGE_FIRST){ proto_tree_add_uint(fc_tree, hf_fc_exchange_last_frame, tvb, 0, 0, fc_ex->last_exchange_frame); } if(fchdr.fctl&FC_FCTL_EXCHANGE_LAST){ nstime_t delta_time; proto_tree_add_uint(fc_tree, hf_fc_exchange_first_frame, tvb, 0, 0, fc_ex->first_exchange_frame); delta_time.secs = pinfo->fd->abs_secs - fc_ex->fc_time.secs; delta_time.nsecs = pinfo->fd->abs_usecs*1000 - fc_ex->fc_time.nsecs; if (delta_time.nsecs<0){ delta_time.nsecs+=1000000000; delta_time.secs--; } proto_tree_add_time(ti, hf_fc_time, tvb, 0, 0, &delta_time); } } fchdr.fced=fc_ex; switch (fchdr.r_ctl & 0xF0) { case FC_RCTL_DEV_DATA: case FC_RCTL_LINK_DATA: case FC_RCTL_VIDEO: /* the lower 4 bits of R_CTL are the information category */ proto_tree_add_uint_format (fc_tree, hf_fc_rctl, tvb, offset, FC_RCTL_SIZE, fchdr.r_ctl, "R_CTL: 0x%x(%s/%s)", fchdr.r_ctl, val_to_str ((fchdr.r_ctl & 0xF0), fc_routing_val, "0x%x"), val_to_str ((fchdr.r_ctl & 0x0F), fc_iu_val, "0x%x")); break; case FC_RCTL_LINK_CTL: /* the lower 4 bits of R_CTL indicate the type of link ctl frame */ proto_tree_add_uint_format (fc_tree, hf_fc_rctl, tvb, offset, FC_RCTL_SIZE, fchdr.r_ctl, "R_CTL: 0x%x(%s/%s)", fchdr.r_ctl, val_to_str ((fchdr.r_ctl & 0xF0), fc_routing_val, "0x%x"), val_to_str ((fchdr.r_ctl & 0x0F), fc_lctl_proto_val, "0x%x")); break; case FC_RCTL_BLS: switch (fchdr.type) { case 0x00: /* the lower 4 bits of R_CTL indicate the type of BLS frame */ proto_tree_add_uint_format (fc_tree, hf_fc_rctl, tvb, offset, FC_RCTL_SIZE, fchdr.r_ctl, "R_CTL: 0x%x(%s/%s)", fchdr.r_ctl, val_to_str ((fchdr.r_ctl & 0xF0), fc_routing_val, "0x%x"), val_to_str ((fchdr.r_ctl & 0x0F), fc_bls_proto_val, "0x%x")); break; default: proto_tree_add_uint_format (fc_tree, hf_fc_rctl, tvb, offset, FC_RCTL_SIZE, fchdr.r_ctl, "R_CTL: 0x%x(%s/0x%x)", fchdr.r_ctl, val_to_str ((fchdr.r_ctl & 0xF0), fc_routing_val, "0x%x"), fchdr.r_ctl & 0x0F); break; } break; case FC_RCTL_ELS: switch (fchdr.type) { case 0x01: /* the lower 4 bits of R_CTL indicate the type of ELS frame */ proto_tree_add_uint_format (fc_tree, hf_fc_rctl, tvb, offset, FC_RCTL_SIZE, fchdr.r_ctl, "R_CTL: 0x%x(%s/%s)", fchdr.r_ctl, val_to_str ((fchdr.r_ctl & 0xF0), fc_routing_val, "0x%x"), val_to_str ((fchdr.r_ctl & 0x0F), fc_els_proto_val, "0x%x")); break; default: proto_tree_add_uint_format (fc_tree, hf_fc_rctl, tvb, offset, FC_RCTL_SIZE, fchdr.r_ctl, "R_CTL: 0x%x(%s/0x%x)", fchdr.r_ctl, val_to_str ((fchdr.r_ctl & 0xF0), fc_routing_val, "0x%x"), fchdr.r_ctl & 0x0F); break; } break; default: proto_tree_add_uint_format (fc_tree, hf_fc_rctl, tvb, offset, FC_RCTL_SIZE, fchdr.r_ctl, "R_CTL: 0x%x(%s/0x%x)", fchdr.r_ctl, val_to_str ((fchdr.r_ctl & 0xF0), fc_routing_val, "0x%x"), fchdr.r_ctl & 0x0F); break; } proto_tree_add_uint_hidden (fc_tree, hf_fc_ftype, tvb, offset, 1, ftype); /* XXX - use "fc_wka_vals[]" on this? */ proto_tree_add_string (fc_tree, hf_fc_did, tvb, offset+1, 3, fc_to_str (fchdr.d_id.data)); proto_tree_add_string_hidden (fc_tree, hf_fc_id, tvb, offset+1, 3, fc_to_str (fchdr.d_id.data)); proto_tree_add_uint (fc_tree, hf_fc_csctl, tvb, offset+4, 1, fchdr.cs_ctl); /* XXX - use "fc_wka_vals[]" on this? */ proto_tree_add_string (fc_tree, hf_fc_sid, tvb, offset+5, 3, fc_to_str (fchdr.s_id.data)); proto_tree_add_string_hidden (fc_tree, hf_fc_id, tvb, offset+5, 3, fc_to_str (fchdr.s_id.data)); if (ftype == FC_FTYPE_LINKCTL) { if (((fchdr.r_ctl & 0x0F) == FC_LCTL_FBSYB) || ((fchdr.r_ctl & 0x0F) == FC_LCTL_FBSYL)) { /* for F_BSY frames, the upper 4 bits of the type field specify the * reason for the BSY. */ proto_tree_add_uint_format (fc_tree, hf_fc_type, tvb, offset+8, FC_TYPE_SIZE, fchdr.type,"Type: 0x%x(%s)", fchdr.type, fclctl_get_typestr ((guint8) (fchdr.r_ctl & 0x0F), fchdr.type)); } else { proto_tree_add_item (fc_tree, hf_fc_type, tvb, offset+8, 1, FALSE); } } else { proto_tree_add_item (fc_tree, hf_fc_type, tvb, offset+8, 1, FALSE); } dissect_fc_fctl(pinfo, fc_tree, tvb, offset+9, is_ack, fchdr.fctl); proto_tree_add_item (fc_tree, hf_fc_seqid, tvb, offset+12, 1, FALSE); df_ctl = tvb_get_guint8(tvb, offset+13); 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 */ next_offset = offset + FC_HEADER_SIZE; /* Network_Header present? */ if (df_ctl & FC_DFCTL_NH) { /* Yes - dissect it. */ if (tree) { proto_tree_add_string (fc_tree, hf_fc_nh_da, tvb, next_offset, 8, fcwwn_to_str (tvb_get_ptr (tvb, offset, 8))); proto_tree_add_string (fc_tree, hf_fc_nh_sa, tvb, offset+8, 8, fcwwn_to_str (tvb_get_ptr (tvb, offset+8, 8))); } next_offset += 16; } /* XXX - handle Association_Header and Device_Header here */ if (ftype == FC_FTYPE_LINKCTL) { /* ACK_1 frames and other LINK_CTL frames echo the last seq bit if the * packet they're ack'ing did not have it set. So, we'll incorrectly * flag them as being fragmented when they're not. This fixes the * problem */ is_lastframe_inseq = TRUE; } else { /* XXX is this right? offset 20, shouldnt it be offset 9? */ is_exchg_resp = ((tvb_get_guint8 (tvb, offset+20) & 0x80) == 0x80); } frag_size = tvb_reported_length (tvb)-FC_HEADER_SIZE; /* 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) { frag_size -= 8; /* 4 byte of FC CRC + 4 bytes of error+EOF = 8 bytes */ } if (!is_lastframe_inseq) { /* Show this only as a fragmented FC frame */ if (check_col (pinfo->cinfo, COL_INFO)) { col_append_str (pinfo->cinfo, COL_INFO, " (Fragmented)"); } } /* If this is a fragment, attempt to check if fully reassembled frame is * present, if we're configured to reassemble. */ if ((ftype != FC_FTYPE_LINKCTL) && (ftype != FC_FTYPE_BLS) && (!is_lastframe_inseq || !is_1frame_inseq) && fc_reassemble && tvb_bytes_exist(tvb, FC_HEADER_SIZE, frag_size) && tree) { /* Add this to the list of fragments */ /* In certain cases such as FICON, the SEQ_CNT is streaming * i.e. continuously increasing. So, zero does not signify the * first frame of the sequence. To fix this, we need to save the * SEQ_CNT of the first frame in sequence and use this value to * determine the actual offset into a frame. */ conversation = find_conversation (&pinfo->src, &pinfo->dst, pinfo->ptype, pinfo->oxid, pinfo->rxid, NO_PORT2); if (!conversation) { conversation = conversation_new (&pinfo->src, &pinfo->dst, pinfo->ptype, pinfo->oxid, pinfo->rxid, NO_PORT2); } ckey.conv_idx = conversation->index; cdata = (fcseq_conv_data_t *)g_hash_table_lookup (fcseq_req_hash, &ckey); if (is_1frame_inseq) { if (cdata) { /* Since we never free the memory used by an exchange, this maybe a * case of another request using the same exchange as a previous * req. */ cdata->seq_cnt = fchdr.seqcnt; } else { req_key = g_mem_chunk_alloc (fcseq_req_keys); req_key->conv_idx = conversation->index; cdata = g_mem_chunk_alloc (fcseq_req_vals); cdata->seq_cnt = fchdr.seqcnt; g_hash_table_insert (fcseq_req_hash, req_key, cdata); } real_seqcnt = 0; } else if (cdata != NULL) { real_seqcnt = fchdr.seqcnt - cdata->seq_cnt ; } else { real_seqcnt = fchdr.seqcnt; } frag_id = ((pinfo->oxid << 16) ^ seq_id) | is_exchg_resp ; /* We assume that all frames are of the same max size */ fcfrag_head = fragment_add (tvb, FC_HEADER_SIZE, pinfo, frag_id, fc_fragment_table, real_seqcnt * fc_max_frame_size, frag_size, !is_lastframe_inseq); if (fcfrag_head) { next_tvb = tvb_new_real_data (fcfrag_head->data, fcfrag_head->datalen, fcfrag_head->datalen); tvb_set_child_real_data_tvbuff(tvb, next_tvb); /* Add the defragmented data to the data source list. */ add_new_data_source(pinfo, next_tvb, "Reassembled FC"); if (tree) { proto_tree_add_boolean_hidden (fc_tree, hf_fc_reassembled, tvb, offset+9, 1, 1); } } else { if (tree) { proto_tree_add_boolean_hidden (fc_tree, hf_fc_reassembled, tvb, offset+9, 1, 0); } next_tvb = tvb_new_subset (tvb, next_offset, -1, -1); call_dissector (data_handle, next_tvb, pinfo, tree); return; } } else { if (tree) { proto_tree_add_boolean_hidden (fc_tree, hf_fc_reassembled, tvb, offset+9, 1, 0); } next_tvb = tvb_new_subset (tvb, next_offset, -1, -1); } if ((ftype != FC_FTYPE_LINKCTL) && (ftype != FC_FTYPE_BLS)) { if (!dissector_try_port (fcftype_dissector_table, ftype, next_tvb, pinfo, tree)) { call_dissector (data_handle, next_tvb, pinfo, tree); } } 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) { dissect_fc_ba_rjt (next_tvb, pinfo, tree); } } tap_queue_packet(fc_tap, pinfo, &fchdr); } /* Register the protocol with Ethereal */ /* this format is require because a script is used to build the C function that calls all the protocol registration. */ void proto_register_fc(void) { /* Setup list of header fields See Section 1.6.1 for details*/ static hf_register_info hf[] = { { &hf_fc_rctl, { "R_CTL", "fc.r_ctl", FT_UINT8, BASE_HEX, NULL, 0x0, "R_CTL", HFILL }}, { &hf_fc_ftype, {"Frame type", "fc.ftype", FT_UINT8, BASE_HEX, VALS(fc_ftype_vals), 0x0, "Derived Type", HFILL}}, { &hf_fc_did, { "Dest Addr", "fc.d_id", FT_STRING, BASE_HEX, NULL, 0x0, "Destination Address", HFILL}}, { &hf_fc_csctl, {"CS_CTL", "fc.cs_ctl", FT_UINT8, BASE_HEX, NULL, 0x0, "CS_CTL", HFILL}}, { &hf_fc_sid, {"Src Addr", "fc.s_id", FT_STRING, BASE_HEX, NULL, 0x0, "Source Address", HFILL}}, { &hf_fc_id, {"Addr", "fc.id", FT_STRING, BASE_HEX, NULL, 0x0, "Source or Destination Address", HFILL}}, { &hf_fc_type, {"Type", "fc.type", FT_UINT8, BASE_HEX, VALS (fc_fc4_val), 0x0, "", HFILL}}, { &hf_fc_fctl, {"F_CTL", "fc.f_ctl", FT_UINT24, BASE_HEX, NULL, 0x0, "", HFILL}}, { &hf_fc_seqid, {"SEQ_ID", "fc.seq_id", FT_UINT8, BASE_HEX, NULL, 0x0, "Sequence ID", HFILL}}, { &hf_fc_dfctl, {"DF_CTL", "fc.df_ctl", FT_UINT8, BASE_HEX, NULL, 0x0, "", HFILL}}, { &hf_fc_seqcnt, {"SEQ_CNT", "fc.seq_cnt", FT_UINT16, BASE_DEC, NULL, 0x0, "Sequence Count", HFILL}}, { &hf_fc_oxid, {"OX_ID", "fc.ox_id", FT_UINT16, BASE_HEX, NULL, 0x0, "Originator ID", HFILL}}, { &hf_fc_rxid, {"RX_ID", "fc.rx_id", FT_UINT16, BASE_HEX, NULL, 0x0, "Receiver ID", HFILL}}, { &hf_fc_param, {"Parameter", "fc.parameter", FT_UINT32, BASE_HEX, NULL, 0x0, "Parameter", HFILL}}, { &hf_fc_reassembled, {"Reassembled Frame", "fc.reassembled", FT_BOOLEAN, BASE_HEX, NULL, 0x0, "", HFILL}}, { &hf_fc_nh_da, {"Network DA", "fc.nethdr.da", FT_STRING, BASE_HEX, NULL, 0x0, "", HFILL}}, { &hf_fc_nh_sa, {"Network SA", "fc.nethdr.sa", FT_STRING, BASE_HEX, NULL, 0x0, "", HFILL}}, /* Basic Link Svc field definitions */ { &hf_fc_bls_seqid_vld, {"SEQID Valid", "fc.bls_seqidvld", FT_UINT8, BASE_HEX, VALS (fc_bls_seqid_val), 0x0, "", HFILL}}, { &hf_fc_bls_lastvld_seqid, {"Last Valid SEQID", "fc.bls_lastseqid", FT_UINT8, BASE_HEX, NULL, 0x0, "", HFILL}}, { &hf_fc_bls_oxid, {"OXID", "fc.bls_oxid", FT_UINT16, BASE_HEX, NULL, 0x0, "", HFILL}}, { &hf_fc_bls_rxid, {"RXID", "fc.bls_rxid", FT_UINT16, BASE_HEX, NULL, 0x0, "", HFILL}}, { &hf_fc_bls_lowseqcnt, {"Low SEQCNT", "fc.bls_lseqcnt", FT_UINT16, BASE_HEX, NULL, 0x0, "", HFILL}}, { &hf_fc_bls_hiseqcnt, {"High SEQCNT", "fc.bls_hseqcnt", FT_UINT16, BASE_HEX, NULL, 0x0, "", HFILL}}, { &hf_fc_bls_rjtcode, {"Reason", "fc.bls_reason", FT_UINT8, BASE_HEX, VALS(fc_bls_barjt_val), 0x0, "", HFILL}}, { &hf_fc_bls_rjtdetail, {"Reason Explanantion", "fc.bls_rjtdetail", FT_UINT8, BASE_HEX, VALS (fc_bls_barjt_det_val), 0x0, "", HFILL}}, { &hf_fc_bls_vendor, {"Vendor Unique Reason", "fc.bls_vnduniq", FT_UINT8, BASE_HEX, NULL, 0x0, "", HFILL}}, { &hf_fc_fctl_exchange_responder, {"ExgRpd", "fc.fctl.exchange_responder", FT_BOOLEAN, 24, TFS(&tfs_fc_fctl_exchange_responder), FC_FCTL_EXCHANGE_RESPONDER, "Exchange Responder?", HFILL}}, { &hf_fc_fctl_seq_recipient, {"SeqRec", "fc.fctl.seq_recipient", FT_BOOLEAN, 24, TFS(&tfs_fc_fctl_seq_recipient), FC_FCTL_SEQ_RECIPIENT, "Seq Recipient?", HFILL}}, { &hf_fc_fctl_exchange_first, {"ExgFst", "fc.fctl.exchange_first", FT_BOOLEAN, 24, TFS(&tfs_fc_fctl_exchange_first), FC_FCTL_EXCHANGE_FIRST, "First Exchange?", HFILL}}, { &hf_fc_fctl_exchange_last, {"ExgLst", "fc.fctl.exchange_last", FT_BOOLEAN, 24, TFS(&tfs_fc_fctl_exchange_last), FC_FCTL_EXCHANGE_LAST, "Last Exchange?", HFILL}}, { &hf_fc_fctl_seq_last, {"SeqLst", "fc.fctl.seq_last", FT_BOOLEAN, 24, TFS(&tfs_fc_fctl_seq_last), FC_FCTL_SEQ_LAST, "Last Sequence?", HFILL}}, { &hf_fc_fctl_priority, {"Pri", "fc.fctl.priority", FT_BOOLEAN, 24, TFS(&tfs_fc_fctl_priority), FC_FCTL_PRIORITY, "Priority", HFILL}}, { &hf_fc_fctl_transfer_seq_initiative, {"TSI", "fc.fctl.transfer_seq_initiative", FT_BOOLEAN, 24, TFS(&tfs_fc_fctl_transfer_seq_initiative), FC_FCTL_TRANSFER_SEQ_INITIATIVE, "Transfer Seq Initiative", HFILL}}, { &hf_fc_fctl_rexmitted_seq, {"RetSeq", "fc.fctl.rexmitted_seq", FT_BOOLEAN, 24, TFS(&tfs_fc_fctl_rexmitted_seq), FC_FCTL_REXMITTED_SEQ, "Retransmitted Sequence", HFILL}}, { &hf_fc_fctl_rel_offset, {"RelOff", "fc.fctl.rel_offset", FT_BOOLEAN, 24, TFS(&tfs_fc_fctl_rel_offset), FC_FCTL_REL_OFFSET, "rel offset", HFILL}}, { &hf_fc_fctl_last_data_frame, {"LDF", "fc.fctl.last_data_frame", FT_UINT24, BASE_HEX, VALS(last_data_frame_vals), FC_FCTL_LAST_DATA_FRAME_MASK, "Last Data Frame?", HFILL}}, { &hf_fc_fctl_ack_0_1, {"A01", "fc.fctl.ack_0_1", FT_UINT24, BASE_HEX, VALS(ack_0_1_vals), FC_FCTL_ACK_0_1_MASK, "Ack 0/1 value", HFILL}}, { &hf_fc_fctl_abts_ack, {"AA", "fc.fctl.abts_ack", FT_UINT24, BASE_HEX, VALS(abts_ack_vals), FC_FCTL_ABTS_MASK, "ABTS ACK values", HFILL}}, { &hf_fc_fctl_abts_not_ack, {"AnA", "fc.fctl.abts_not_ack", FT_UINT24, BASE_HEX, VALS(abts_not_ack_vals), FC_FCTL_ABTS_MASK, "ABTS not ACK vals", HFILL}}, { &hf_fc_exchange_first_frame, { "Exchange First In", "fc.exchange_first_frame", FT_FRAMENUM, BASE_NONE, NULL, 0, "The first frame of this exchange is in this frame", HFILL }}, { &hf_fc_exchange_last_frame, { "Exchange Last In", "fc.exchange_last_frame", FT_FRAMENUM, BASE_NONE, NULL, 0, "The last frame of this exchange is in this frame", HFILL }}, { &hf_fc_time, { "Time from Exchange First", "fc.time", FT_RELATIVE_TIME, BASE_NONE, NULL, 0, "Time since the first frame of the Exchange", HFILL }}, { &hf_fc_eisl, {"EISL Header", "fc.eisl", FT_BYTES, BASE_HEX, NULL, 0, "EISL Header", HFILL}}, }; /* Setup protocol subtree array */ static gint *ett[] = { &ett_fc, &ett_fcbls, &ett_fctl }; module_t *fc_module; /* 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)); proto_register_subtree_array(ett, array_length(ett)); fcftype_dissector_table = register_dissector_table ("fc.ftype", "FC Frame Type", FT_UINT8, BASE_HEX); /* Register preferences */ fc_module = prefs_register_protocol (proto_fc, NULL); prefs_register_bool_preference (fc_module, "reassemble", "Reassemble multi-frame sequences", "If enabled, reassembly of multi-frame " "sequences is done", &fc_reassemble); prefs_register_uint_preference (fc_module, "max_frame_size", "Max FC Frame Size", "This is the size of non-last frames in a " "multi-frame sequence", 10, &fc_max_frame_size); register_init_routine(fc_defragment_init); register_init_routine (fc_exchange_init_protocol); } /* If this dissector uses sub-dissector registration add a registration routine. This format is required because a script is used to find these routines and create the code that calls these routines. */ void proto_reg_handoff_fc (void) { data_handle = find_dissector("data"); }