diff options
Diffstat (limited to 'packet-vines.c')
| -rw-r--r-- | packet-vines.c | 251 |
1 files changed, 167 insertions, 84 deletions
diff --git a/packet-vines.c b/packet-vines.c index a174902949..7a0ffe34ea 100644 --- a/packet-vines.c +++ b/packet-vines.c @@ -1,13 +1,14 @@ /* packet-vines.c * Routines for Banyan VINES protocol packet disassembly * - * $Id: packet-vines.c,v 1.4 1998/11/17 04:29:08 gerald Exp $ + * $Id: packet-vines.c,v 1.5 1998/12/29 04:05:36 gerald Exp $ * * Don Lafontaine <lafont02@cn.ca> * * Ethereal - Network traffic analyzer * By Gerald Combs <gerald@zing.org> * Copyright 1998 Gerald Combs + * Joerg Mayer <jmayer@telemation.de> * * * This program is free software; you can redistribute it and/or @@ -44,55 +45,137 @@ #include "etypes.h" #include "packet-vines.h" -#define VINES_VSPP 2 -#define VINES_DATA 1 + +/* AFAIK Vines FRP (Fragmentation Protocol) is used on all media except Ethernet + * and TR (and probably FDDI) - Fragmentation on these media types is not possible + * FIXME: Do we need to use this header with PPP too? + */ + +void +dissect_vines_frp(const u_char *pd, int offset, frame_data *fd, GtkTree *tree) { + guint8 vines_frp_ctrl, vines_frp_seqno; + GtkWidget *vines_frp_tree, *ti; + gchar frp_flags_str[32]; + + /* To do: Check for {cap len,pkt len} < struct len */ + /* Avoids alignment problems on many architectures. */ + vines_frp_ctrl = pd[offset]; + vines_frp_seqno = pd[offset+1]; + + if (check_col(fd, COL_PROTOCOL)) + col_add_str(fd, COL_PROTOCOL, "Vines FRP"); + /* + * 1: first fragment of vines packet + * 2: last fragment of vines packet + * 4 ... 80: unused + */ + switch (vines_frp_ctrl) { + case 0: + strcpy(frp_flags_str, "middle"); + break; + case 1: + strcpy(frp_flags_str, "first"); + break; + case 2: + strcpy(frp_flags_str, "last"); + break; + case 3: + strcpy(frp_flags_str, "only"); + break; + default: + strcpy(frp_flags_str, "please report: unknown"); + break; + } + + if (tree) { + ti = add_item_to_tree(GTK_WIDGET(tree), offset, 2, + "Vines Fragmentation Protocol"); + vines_frp_tree = gtk_tree_new(); + add_subtree(ti, vines_frp_tree, ETT_VINES_FRP); + add_item_to_tree(vines_frp_tree, offset, 1, "Control Flags: 0x%02x = %s fragment", vines_frp_ctrl, frp_flags_str); + add_item_to_tree(vines_frp_tree, offset + 1, 1, "Sequence Number: 0x%02x", vines_frp_seqno); + } + + /* Skip over header */ + offset += 2; + + /* Decode the "real" Vines now */ + dissect_vines(pd, offset, fd, tree); +} void dissect_vines(const u_char *pd, int offset, frame_data *fd, GtkTree *tree) { - e_vip iph; + e_vip viph; GtkWidget *vip_tree, *ti; /* gchar tos_str[32]; */ + int is_broadcast = 0; + int hops = 0; /* To do: check for runts, errs, etc. */ /* Avoids alignment problems on many architectures. */ - memcpy(&iph, &pd[offset], sizeof(e_vip)); - - iph.vip_sum = pntohs(&pd[offset]); - iph.vip_len = pntohs(&pd[offset+2]); - iph.vip_dnet = pntohl(&pd[offset+6]); - iph.vip_snet = pntohl(&pd[offset+12]); - iph.vip_dsub = pntohs(&pd[offset+10]); - iph.vip_ssub = pntohs(&pd[offset+16]); - - switch (iph.vip_proto) - { - case VINES_VSPP: - if (check_col(fd, COL_PROTOCOL)) - col_add_str(fd, COL_PROTOCOL, "Vines"); - if (check_col(fd, COL_INFO)) - col_add_fstr(fd, COL_INFO, "VSPP (%02x)", iph.vip_proto); - break; - case VINES_DATA: - if (check_col(fd, COL_PROTOCOL)) - col_add_str(fd, COL_PROTOCOL, "Vines IP"); - if (check_col(fd, COL_INFO)) - col_add_fstr(fd, COL_INFO, "DATA (%02x)", iph.vip_proto); - break; - default: - if (check_col(fd, COL_PROTOCOL)) - col_add_str(fd, COL_PROTOCOL, "Vines IP"); - if (check_col(fd, COL_INFO)) - col_add_fstr(fd, COL_INFO, "Unknown VIP protocol (%02x)", iph.vip_proto); - } + memcpy(&viph, &pd[offset], sizeof(e_vip)); + + viph.vip_chksum = pntohs(&pd[offset]); + viph.vip_pktlen = pntohs(&pd[offset+2]); + viph.vip_dnet = pntohl(&pd[offset+6]); + viph.vip_snet = pntohl(&pd[offset+12]); + viph.vip_dsub = pntohs(&pd[offset+10]); + viph.vip_ssub = pntohs(&pd[offset+16]); + + switch (viph.vip_proto) { + case VIP_PROTO_IPC: + if (check_col(fd, COL_PROTOCOL)) + col_add_str(fd, COL_PROTOCOL, "Vines IPC"); + if (check_col(fd, COL_INFO)) + col_add_fstr(fd, COL_INFO, "IPC (%02x)", viph.vip_proto); + break; + case VIP_PROTO_SPP: + if (check_col(fd, COL_PROTOCOL)) + col_add_str(fd, COL_PROTOCOL, "Vines SPP"); + if (check_col(fd, COL_INFO)) + col_add_fstr(fd, COL_INFO, "SPP (%02x)", viph.vip_proto); + break; + case VIP_PROTO_ARP: + if (check_col(fd, COL_PROTOCOL)) + col_add_str(fd, COL_PROTOCOL, "Vines ARP"); + if (check_col(fd, COL_INFO)) + col_add_fstr(fd, COL_INFO, "ARP (%02x)", viph.vip_proto); + break; + case VIP_PROTO_RTP: + if (check_col(fd, COL_PROTOCOL)) + col_add_str(fd, COL_PROTOCOL, "Vines RTP"); + if (check_col(fd, COL_INFO)) + col_add_fstr(fd, COL_INFO, "RTP (%02x)", viph.vip_proto); + break; + case VIP_PROTO_ICP: + if (check_col(fd, COL_PROTOCOL)) + col_add_str(fd, COL_PROTOCOL, "Vines ICP"); + if (check_col(fd, COL_INFO)) + col_add_fstr(fd, COL_INFO, "ICP (%02x)", viph.vip_proto); + break; + default: + if (check_col(fd, COL_PROTOCOL)) + col_add_str(fd, COL_PROTOCOL, "Vines IP"); + if (check_col(fd, COL_INFO)) + col_add_fstr(fd, COL_INFO, "Unknown VIP protocol (%02x)", viph.vip_proto); + } if (check_col(fd, COL_RES_NET_SRC)) - col_add_fstr(fd, COL_RES_NET_SRC, "%08x.%04x", iph.vip_snet, iph.vip_ssub); + col_add_fstr(fd, COL_RES_NET_SRC, "%08x.%04x", viph.vip_snet, viph.vip_ssub); if (check_col(fd, COL_RES_NET_DST)) - col_add_fstr(fd, COL_RES_NET_DST, "%08x.%04x", iph.vip_dnet, iph.vip_dsub); + col_add_fstr(fd, COL_RES_NET_DST, "%08x.%04x", viph.vip_dnet, viph.vip_dsub); + + /* helpers to decode flags */ + /* FIXME: Not used yet */ + if ((viph.vip_dnet == 0xffffffff) && (viph.vip_dsub == 0xffff)) { + is_broadcast = 1; + } + hops = viph.vip_tctl & 0xf; + /* - iph.ip_tos = IPTOS_TOS(iph.ip_tos); - switch (iph.ip_tos) + viph.ip_tos = IPTOS_TOS(viph.ip_tos); + switch (viph.ip_tos) { case IPTOS_NONE: strcpy(tos_str, "None"); @@ -116,71 +199,71 @@ dissect_vines(const u_char *pd, int offset, frame_data *fd, GtkTree *tree) */ if (tree) { - ti = add_item_to_tree(GTK_WIDGET(tree), offset, (iph.vip_len), + ti = add_item_to_tree(GTK_WIDGET(tree), offset, (viph.vip_pktlen), "Vines IP"); vip_tree = gtk_tree_new(); add_subtree(ti, vip_tree, ETT_VINES); - add_item_to_tree(vip_tree, offset, 2, "Header checksum: 0x%04x", iph.vip_sum); - add_item_to_tree(vip_tree, offset + 2, 2, "Header length: 0x%02x (%d)", iph.vip_len, iph.vip_len); + add_item_to_tree(vip_tree, offset, 2, "Packet checksum: 0x%04x", viph.vip_chksum); + add_item_to_tree(vip_tree, offset + 2, 2, "Packet length: 0x%04x (%d)", viph.vip_pktlen, viph.vip_pktlen); add_item_to_tree(vip_tree, offset + 4, 1, "Transport control: 0x%02x", - iph.vip_tos); - add_item_to_tree(vip_tree, offset + 5, 1, "Protocol: 0x%02x", iph.vip_proto); + viph.vip_tctl); + add_item_to_tree(vip_tree, offset + 5, 1, "Protocol: 0x%02x", viph.vip_proto); } offset += 18; - switch (iph.vip_proto) + switch (viph.vip_proto) { - case VINES_VSPP: - dissect_vspp(pd, offset, fd, tree); + case VIP_PROTO_SPP: + dissect_vines_spp(pd, offset, fd, tree); break; } } #define VINES_VSPP_DATA 1 #define VINES_VSPP_ACK 5 -void dissect_vspp(const u_char *pd, int offset, frame_data *fd, GtkTree *tree) +void dissect_vines_spp(const u_char *pd, int offset, frame_data *fd, GtkTree *tree) { - e_vspp iph; + e_vspp viph; GtkWidget *vspp_tree, *ti; -/* gchar tos_str[32];*/ /* To do: check for runts, errs, etc. */ /* Avoids alignment problems on many architectures. */ - memcpy(&iph, &pd[offset], sizeof(e_vspp)); + memcpy(&viph, &pd[offset], sizeof(e_vspp)); - iph.vspp_sport = ntohs(iph.vspp_sport); - iph.vspp_dport = ntohs(iph.vspp_dport); - iph.vspp_lclid = ntohs(iph.vspp_lclid); - iph.vspp_rmtid = ntohs(iph.vspp_rmtid); + viph.vspp_sport = ntohs(viph.vspp_sport); + viph.vspp_dport = ntohs(viph.vspp_dport); + viph.vspp_lclid = ntohs(viph.vspp_lclid); + viph.vspp_rmtid = ntohs(viph.vspp_rmtid); - switch (iph.vspp_pkttype) + switch (viph.vspp_pkttype) { - case VINES_VSPP_DATA: + case VSPP_PKTTYPE_DATA: if (check_col(fd, COL_PROTOCOL)) - col_add_str(fd, COL_PROTOCOL, "Vines"); - if (check_col(fd, COL_INFO)) - col_add_fstr(fd, COL_INFO, "VSPP Data Port=%04x(Transient) NS=%04x NR=%04x Window=%04x RID=%04x LID=%04x D=%04x S=%04x", - iph.vspp_sport, iph.vspp_seq, iph.vspp_ack, iph.vspp_win, iph.vspp_rmtid, - iph.vspp_lclid, iph.vspp_dport, iph.vspp_sport); + col_add_str(fd, COL_PROTOCOL, "VSPP Data"); break; - case VINES_VSPP_ACK: + case VSPP_PKTTYPE_DISC: if (check_col(fd, COL_PROTOCOL)) - col_add_str(fd, COL_PROTOCOL, "Vines"); - if (check_col(fd, COL_INFO)) - col_add_fstr(fd, COL_INFO, "VSPP Ack Port=%04x(Transient) NS=%04x NR=%04x Window=%04x RID=%04x LID=%04x", - iph.vspp_sport, iph.vspp_seq, iph.vspp_ack, iph.vspp_win, iph.vspp_rmtid, - iph.vspp_lclid); - - break; + col_add_str(fd, COL_PROTOCOL, "VSPP Disconnect"); + break; + case VSPP_PKTTYPE_PROBE: + if (check_col(fd, COL_PROTOCOL)) + col_add_str(fd, COL_PROTOCOL, "VSPP Probe"); + break; + case VSPP_PKTTYPE_ACK: + if (check_col(fd, COL_PROTOCOL)) + col_add_str(fd, COL_PROTOCOL, "VSPP Ack"); + break; default: if (check_col(fd, COL_PROTOCOL)) - col_add_str(fd, COL_PROTOCOL, "Vines IP"); - if (check_col(fd, COL_INFO)) - col_add_fstr(fd, COL_INFO, "Unknown VSPP packet type (%02x)", iph.vspp_pkttype); + col_add_str(fd, COL_PROTOCOL, "VSPP Unknown"); } + if (check_col(fd, COL_INFO)) + col_add_fstr(fd, COL_INFO, "NS=%04x NR=%04x Window=%04x RID=%04x LID=%04x D=%04x S=%04x", + viph.vspp_seqno, viph.vspp_ack, viph.vspp_win, viph.vspp_rmtid, + viph.vspp_lclid, viph.vspp_dport, viph.vspp_sport); /* - iph.ip_tos = IPTOS_TOS(iph.ip_tos); - switch (iph.ip_tos) + iph.ip_tos = IPTOS_TOS(iph.ip_tos); + switch (iph.ip_tos) { case IPTOS_NONE: strcpy(tos_str, "None"); @@ -204,19 +287,19 @@ void dissect_vspp(const u_char *pd, int offset, frame_data *fd, GtkTree *tree) */ if (tree) { - ti = add_item_to_tree(GTK_WIDGET(tree), offset, sizeof(iph), + ti = add_item_to_tree(GTK_WIDGET(tree), offset, sizeof(viph), "Vines SPP"); vspp_tree = gtk_tree_new(); - add_subtree(ti, vspp_tree, ETT_VSPP); - add_item_to_tree(vspp_tree, offset, 2, "Source port: 0x%04x", iph.vspp_sport); - add_item_to_tree(vspp_tree, offset+2, 2, "Destination port: 0x%04x", iph.vspp_dport); - add_item_to_tree(vspp_tree, offset+4, 1, "Packet type: 0x%02x", iph.vspp_pkttype); - add_item_to_tree(vspp_tree, offset+5, 1, "Control: 0x%02x", iph.vspp_tos); - add_item_to_tree(vspp_tree, offset+6, 2, "Local Connection ID: 0x%04x", iph.vspp_lclid); - add_item_to_tree(vspp_tree, offset+8, 2, "Remote Connection ID: 0x%04x", iph.vspp_rmtid); - add_item_to_tree(vspp_tree, offset+10, 2, "Sequence number: 0x%04x", iph.vspp_seq); - add_item_to_tree(vspp_tree, offset+12, 2, "Ack number: 0x%04x", iph.vspp_ack); - add_item_to_tree(vspp_tree, offset+14, 2, "Window: 0x%04x", iph.vspp_win); + add_subtree(ti, vspp_tree, ETT_VINES_SPP); + add_item_to_tree(vspp_tree, offset, 2, "Source port: 0x%04x", viph.vspp_sport); + add_item_to_tree(vspp_tree, offset+2, 2, "Destination port: 0x%04x", viph.vspp_dport); + add_item_to_tree(vspp_tree, offset+4, 1, "Packet type: 0x%02x", viph.vspp_pkttype); + add_item_to_tree(vspp_tree, offset+5, 1, "Control: 0x%02x", viph.vspp_control); + add_item_to_tree(vspp_tree, offset+6, 2, "Local Connection ID: 0x%04x", viph.vspp_lclid); + add_item_to_tree(vspp_tree, offset+8, 2, "Remote Connection ID: 0x%04x", viph.vspp_rmtid); + add_item_to_tree(vspp_tree, offset+10, 2, "Sequence number: 0x%04x", viph.vspp_seqno); + add_item_to_tree(vspp_tree, offset+12, 2, "Ack number: 0x%04x", viph.vspp_ack); + add_item_to_tree(vspp_tree, offset+14, 2, "Window: 0x%04x", viph.vspp_win); } } |