/* packet-fc.c * Routines for Fibre Channel Decoding (FC Header, Link Ctl & Basic Link Svc) * Copyright 2001, Dinesh G Dutt * * $Id: packet-fc.c,v 1.2 2002/12/10 02:49:31 guy 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 "etypes.h" #include "packet-fc.h" #include "packet-fclctl.h" #include "packet-fcbls.h" #define FC_HEADER_SIZE 24 #define FC_RCTL_EISL 0x50 /* 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_rctl = -1; static int hf_fc_did = -1; static int hf_fc_csctl = -1; static int hf_fc_sid = -1; static int hf_fc_type = -1; static int hf_fc_fctl = -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_exchg_orig = -1; static int hf_fc_exchg_resp = -1; static int hf_fc_reassembled = -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_fcbls = -1; static dissector_table_t fcftype_dissector_table; static dissector_handle_t data_handle; /* Reassembly stuff */ static gboolean fc_reassemble = TRUE; static guint32 fc_max_frame_size = 1024; static GHashTable *fc_fragment_table = NULL; 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"}, {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"}, {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_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[0] & 0x80) { strcpy (str, "Exchange Responder, "); stroff += 20; } else { strcpy (str, "Exchange Originator, "); stroff += 21; } if (fctl[0] & 0x40) { strcpy (&str[stroff], "Seq Recipient, "); stroff += 15; } else { strcpy (&str[stroff], "Seq Initiator, "); stroff += 15; } if (fctl[0] & 0x20) { strcpy (&str[stroff], "Exchg First, "); stroff += 13; } if (fctl[0] & 0x10) { strcpy (&str[stroff], "Exchg Last, "); stroff += 12; } if (fctl[0] & 0x8) { strcpy (&str[stroff], "Seq Last, "); stroff += 10; } if (fctl[0] & 0x2) { strcpy (&str[stroff], "Priority, "); stroff += 10; } else { strcpy (&str[stroff], "CS_CTL, "); stroff += 8; } if (fctl[0] & 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[2] & 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[2] & 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 - 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[2] & 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; 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; } } /* 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; proto_tree *fc_tree = NULL; tvbuff_t *next_tvb; int offset = 0, next_offset; gboolean is_lastframe_inseq; gboolean is_exchg_resp = 0; fragment_data *fcfrag_head; guint32 frag_id; guint32 frag_size; guint8 r_ctl, type, df_ctl; gchar str[256]; guint32 param; guint16 seqcnt; guint8 ftype; gboolean is_ack; /* 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"); 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 (r_ctl == FC_RCTL_EISL) { offset += 8; r_ctl = tvb_get_guint8 (tvb, offset); } type = tvb_get_guint8 (tvb, offset+8); seqcnt = tvb_get_ntohs (tvb, offset+14); param = tvb_get_ntohl (tvb, offset+20); SET_ADDRESS (&pinfo->dst, AT_FC, 3, tvb_get_ptr (tvb, 1, 3)); SET_ADDRESS (&pinfo->src, AT_FC, 3, tvb_get_ptr (tvb, 5, 3)); pinfo->oxid = tvb_get_ntohs (tvb, offset+16); pinfo->rxid = tvb_get_ntohs (tvb, offset+18); pinfo->ptype = PT_EXCHG; pinfo->r_ctl = r_ctl; is_ack = ((r_ctl == 0xC0) || (r_ctl == 0xC1)); ftype = fc_get_ftype (r_ctl, 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 ((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); if (ftype == FC_FTYPE_LINKCTL) { /* 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, r_ctl, "R_CTL: 0x%x(%s)", r_ctl, val_to_str ((r_ctl & 0x0F), fc_lctl_proto_val, "0x%x")); } else if (ftype == FC_FTYPE_BLS) { /* 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, r_ctl, "R_CTL: 0x%x(%s)", r_ctl, val_to_str ((r_ctl & 0x0F), fc_bls_proto_val, "0x%x")); } else { proto_tree_add_item (fc_tree, hf_fc_rctl, tvb, offset, 1, FALSE); } proto_tree_add_uint_hidden (fc_tree, hf_fc_ftype, tvb, offset, 1, ftype); proto_tree_add_string (fc_tree, hf_fc_did, tvb, offset+1, 3, fc_to_str ((guint8 *)tvb_get_ptr (tvb, offset+1, 3))); proto_tree_add_item (fc_tree, hf_fc_csctl, tvb, offset+4, 1, FALSE); proto_tree_add_string (fc_tree, hf_fc_sid, tvb, offset+5, 3, fc_to_str ((guint8 *)tvb_get_ptr (tvb, offset+5, 3))); if (ftype == FC_FTYPE_LINKCTL) { if (((r_ctl & 0x0F) == FC_LCTL_FBSYB) || ((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, type, "Type: 0x%x(%s)", type, fclctl_get_typestr (r_ctl & 0x0F, 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); } proto_tree_add_uint_format (fc_tree, hf_fc_fctl, tvb, offset+9, 3, tvb_get_ntoh24 (tvb, offset+9), "F_CTL: 0x%x (%s)", tvb_get_ntoh24 (tvb, offset+9), fctl_to_str (tvb_get_ptr (tvb, offset+9, 3), str, is_ack)); /* Bit 23 if set => this frame is from the exchange originator */ if (tvb_get_guint8 (tvb, offset+9) & 0x80) { proto_tree_add_boolean_hidden (fc_tree, hf_fc_exchg_orig, tvb, offset+9, 1, 0); proto_tree_add_boolean_hidden (fc_tree, hf_fc_exchg_resp, tvb, offset+9, 1, 1); } else { proto_tree_add_boolean_hidden (fc_tree, hf_fc_exchg_orig, tvb, offset+9, 1, 1); proto_tree_add_boolean_hidden (fc_tree, hf_fc_exchg_resp, tvb, offset+9, 1, 0); } 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_item (fc_tree, hf_fc_seqcnt, tvb, offset+14, 2, FALSE); proto_tree_add_item (fc_tree, hf_fc_oxid, tvb, offset+16, 2, FALSE); proto_tree_add_item (fc_tree, hf_fc_rxid, tvb, offset+18, 2, FALSE); if (ftype == FC_FTYPE_LINKCTL) { if (((r_ctl & 0x0F) == FC_LCTL_FRJT) || ((r_ctl & 0x0F) == FC_LCTL_PRJT) || ((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 ((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 ((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 { is_lastframe_inseq = tvb_get_guint8 (tvb, offset+9) & 0x08; is_exchg_resp = ((tvb_get_guint8 (tvb, offset+20) & 0x80) == 0x80); } frag_size = tvb_reported_length (tvb)-FC_HEADER_SIZE; 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) && seqcnt && fc_reassemble) { /* Add this to the list of fragments */ frag_id = (pinfo->oxid << 16) | 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, seqcnt * fc_max_frame_size, frag_size, TRUE); 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 ((r_ctl & 0x0F) == FC_BLS_BAACC) { dissect_fc_ba_acc (next_tvb, pinfo, tree); } else if ((r_ctl & 0x0F) == FC_BLS_BARJT) { dissect_fc_ba_rjt (next_tvb, pinfo, tree); } } } /* 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_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_exchg_orig, {"Exchange Originator", "fc.xchg_orig", FT_BOOLEAN, BASE_HEX, NULL, 0x0, "", HFILL}}, { &hf_fc_exchg_resp, {"Exchange Responder", "fc.xchg_resp", FT_BOOLEAN, BASE_HEX, NULL, 0x0, "", 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}}, }; /* Setup protocol subtree array */ static gint *ett[] = { &ett_fc, &ett_fcbls, }; 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); /* 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_fc", "Reassemble FC", "If enabled, reassembly of multi-frame " "sequences is done", &fc_reassemble); prefs_register_uint_preference (fc_module, "fc_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); } /* 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) { dissector_handle_t fc_handle; fc_handle = create_dissector_handle (dissect_fc, proto_fc); data_handle = find_dissector("data"); }