/*
* Handles one Auto-RP map entry. Returns the new offset.
*/
static int do_auto_rp_map(tvbuff_t *tvb, int offset, proto_tree *auto_rp_tree)
{
proto_item *ti;
proto_tree *map_tree;
guint8 group_count;
guint32 rp_addr; /* In network byte order */
int i;
rp_addr = tvb_get_ipv4(tvb, offset);
group_count = tvb_get_guint8(tvb, offset + 5);
/* sizeof map header + n * sizeof encoded group addresses */
ti = proto_tree_add_text(auto_rp_tree, tvb, offset, 6 + group_count * 6,
"RP %s: %u group%s", ip_to_str((void *)&rp_addr),
group_count, plurality(group_count, "", "s"));
map_tree = proto_item_add_subtree(ti, ett_auto_rp_map);
proto_tree_add_ipv4(map_tree, hf_auto_rp_rp_addr, tvb, offset, 4, rp_addr);
offset += 4;
proto_tree_add_uint(map_tree, hf_auto_rp_pim_ver, tvb, offset, 1, tvb_get_guint8(tvb, offset));
offset++;
proto_tree_add_text(map_tree, tvb, offset, 1, "Number of groups this RP maps to: %u", group_count);
offset++;
for (i = 0; i < group_count; i++) {
proto_item *gi;
proto_tree *grp_tree;
guint8 sign, mask_len;
guint32 group_addr; /* In network byte order */
sign = tvb_get_guint8(tvb, offset);
mask_len = tvb_get_guint8(tvb, offset + 1);
group_addr = tvb_get_ipv4(tvb, offset + 2);
gi = proto_tree_add_text(map_tree, tvb, offset, 6, "Group %s/%u (%s)",
ip_to_str((void *)&group_addr), mask_len,
val_to_str(sign&AUTO_RP_SIGN_MASK, auto_rp_mask_sign_vals, ""));
grp_tree = proto_item_add_subtree(gi, ett_auto_rp_group);
proto_tree_add_uint(grp_tree, hf_auto_rp_prefix_sgn, tvb, offset, 1, sign);
offset++;
proto_tree_add_uint(grp_tree, hf_auto_rp_mask_len, tvb, offset, 1, mask_len);
offset++;
proto_tree_add_ipv4(grp_tree, hf_auto_rp_group_prefix, tvb, offset, 4, group_addr);
offset += 4;
}
return offset;
}
static int
dissect_bp_address(tvbuff_t *tvb, int offset, proto_tree *tree, int hfindex)
{
guint32 type;
guint32 ipaddr;
type = tvb_get_ntohl(tvb, offset);
offset = dissect_rpc_uint32(tvb, tree, hf_bootparams_addresstype, offset);
switch(type){
case 1:
ipaddr = ((tvb_get_guint8(tvb, offset+3 )&0xff)<<24)
|((tvb_get_guint8(tvb, offset+7 )&0xff)<<16)
|((tvb_get_guint8(tvb, offset+11)&0xff)<<8 )
|((tvb_get_guint8(tvb, offset+15)&0xff) );
proto_tree_add_ipv4(tree, hfindex, tvb,
offset, 16, g_ntohl(ipaddr));
offset += 16;
break;
default:
break;
}
return offset;
}
static void msproxy_sub_dissector( tvbuff_t *tvb, packet_info *pinfo,
proto_tree *tree) {
/* Conversation dissector called from TCP or UDP dissector. Decode and */
/* display the msproxy header, the pass the rest of the data to the tcp */
/* or udp port decode routine to handle the payload. */
guint32 *ptr;
redirect_entry_t *redirect_info;
conversation_t *conversation;
proto_tree *msp_tree;
proto_item *ti;
conversation = find_conversation( pinfo->fd->num, &pinfo->src, &pinfo->dst,
pinfo->ptype, pinfo->srcport, pinfo->destport, 0);
DISSECTOR_ASSERT( conversation); /* should always find a conversation */
redirect_info = conversation_get_proto_data(conversation,
proto_msproxy);
col_set_str(pinfo->cinfo, COL_PROTOCOL, "MS Proxy");
if (check_col(pinfo->cinfo, COL_INFO))
col_set_str(pinfo->cinfo, COL_INFO,
(( redirect_info->proto == PT_TCP) ? "TCP stream" :
"UDP packets"));
if ( tree) {
ti = proto_tree_add_item( tree, proto_msproxy, tvb, 0, 0,
FALSE );
msp_tree = proto_item_add_subtree(ti, ett_msproxy);
proto_tree_add_uint( msp_tree, hf_msproxy_dstport, tvb, 0, 0,
redirect_info->remote_port);
proto_tree_add_ipv4( msp_tree, hf_msproxy_dstaddr, tvb, 0, 0,
redirect_info->remote_addr);
}
/* set pinfo->{src/dst port} and call the UDP sub-dissector lookup */
if ( pinfo->srcport == redirect_info->clnt_port)
ptr = &pinfo->destport;
else
ptr = &pinfo->srcport;
*ptr = redirect_info->remote_port;
if ( redirect_info->proto == PT_TCP)
decode_tcp_ports( tvb, 0, pinfo, tree, pinfo->srcport,
pinfo->destport, NULL);
else
decode_udp_ports( tvb, 0, pinfo, tree, pinfo->srcport,
pinfo->destport, -1);
*ptr = redirect_info->server_int_port;
}
static void
decode_iei_ip_address(nsip_ie_t *ie, build_info_t *bi, int ie_start_offset) {
guint8 addr_type;
guint32 ip4_addr;
struct e_in6_addr ip6_addr;
addr_type = tvb_get_guint8(bi->tvb, bi->offset);
proto_tree_add_item(bi->nsip_tree, hf_nsip_ip_address_type,
bi->tvb, bi->offset, 1, ENC_BIG_ENDIAN);
switch (addr_type) {
case NSIP_IP_ADDRESS_TYPE_IPV4:
ie->total_length = 2 + ipv4_element.address_length;
ip4_addr = tvb_get_ipv4(bi->tvb, bi->offset+1);
proto_tree_add_ipv4(bi->nsip_tree, hf_nsip_ip_address_ipv4,
bi->tvb, ie_start_offset, ie->total_length,
ip4_addr);
break;
case NSIP_IP_ADDRESS_TYPE_IPV6:
ie->total_length = 2 + ipv6_element.address_length;
tvb_get_ipv6(bi->tvb, bi->offset+1, &ip6_addr);
proto_tree_add_ipv6(bi->nsip_tree, hf_nsip_ip_address_ipv4,
bi->tvb, ie_start_offset, ie->total_length,
(guint8 *)&ip6_addr);
break;
default:
return; /* error */
}
bi->offset += ie->value_length;
}
static void dissect_vektor_igrp (tvbuff_t *tvb, proto_tree *igrp_vektor_tree, guint8 network)
{
guint8 *ptr_addr,addr[5];
address ip_addr;
addr[0]=network;
addr[1]=tvb_get_guint8(tvb,0);
addr[2]=tvb_get_guint8(tvb,1);
addr[3]=tvb_get_guint8(tvb,2);
addr[4]=0;
ptr_addr=addr;
if (network==0) ptr_addr=&addr[1];
SET_ADDRESS(&ip_addr, AT_IPv4, 4, ptr_addr);
igrp_vektor_tree = proto_tree_add_subtree_format(igrp_vektor_tree, tvb, 0 ,14,
ett_igrp_net, NULL, "Entry for network %s", address_to_str(wmem_packet_scope(), &ip_addr));
proto_tree_add_ipv4(igrp_vektor_tree, hf_igrp_network, tvb, 0, 3, *((guint32*)ptr_addr));
proto_tree_add_item(igrp_vektor_tree, hf_igrp_delay, tvb, 3, 3, ENC_BIG_ENDIAN);
proto_tree_add_item(igrp_vektor_tree, hf_igrp_bandwidth, tvb, 6, 3, ENC_BIG_ENDIAN);
proto_tree_add_uint_format_value(igrp_vektor_tree, hf_igrp_mtu, tvb, 9, 2, tvb_get_ntohs(tvb,9), "%d bytes", tvb_get_ntohs(tvb,9));
proto_tree_add_item(igrp_vektor_tree, hf_igrp_reliability, tvb, 11, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(igrp_vektor_tree, hf_igrp_load, tvb, 12, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(igrp_vektor_tree, hf_igrp_hop_count, tvb, 13, 1, ENC_BIG_ENDIAN);
}
static int
zebra_route(proto_tree *tree, tvbuff_t *tvb, int offset, guint16 len,
guint8 family)
{
guint32 prefix4;
guint8 message, prefixlen, buffer6[16];
proto_tree_add_item(tree, hf_zebra_type, tvb,
offset, 1, ENC_BIG_ENDIAN);
offset += 1;
proto_tree_add_item(tree, hf_zebra_rtflags, tvb,
offset, 1, ENC_BIG_ENDIAN);
offset += 1;
message = tvb_get_guint8(tvb, offset);
offset = zebra_route_message(tree, tvb, offset, message);
prefixlen = tvb_get_guint8(tvb, offset);
proto_tree_add_uint(tree, hf_zebra_prefixlen, tvb,
offset, 1, prefixlen);
offset += 1;
if (family == ZEBRA_FAMILY_IPV6) {
memset(buffer6, '\0', sizeof buffer6);
tvb_memcpy(tvb, buffer6, offset,
MIN((unsigned) PSIZE(prefixlen), sizeof buffer6));
proto_tree_add_ipv6(tree, hf_zebra_prefix6,
tvb, offset, PSIZE(prefixlen), buffer6);
}else {
prefix4 = 0;
tvb_memcpy(tvb, (guint8 *)&prefix4, offset,
MIN((unsigned) PSIZE(prefixlen), sizeof prefix4));
proto_tree_add_ipv4(tree, hf_zebra_prefix4,
tvb, offset, PSIZE(prefixlen), prefix4);
}
offset += PSIZE(prefixlen);
if (message & ZEBRA_ZAPI_MESSAGE_NEXTHOP) {
offset = zebra_route_nexthop(tree, tvb, offset, len);
}
if (message & ZEBRA_ZAPI_MESSAGE_IFINDEX) {
offset = zebra_route_ifindex(tree, tvb, offset, len);
}
if (message & ZEBRA_ZAPI_MESSAGE_DISTANCE) {
proto_tree_add_item(tree, hf_zebra_distance,
tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
}
if (message & ZEBRA_ZAPI_MESSAGE_METRIC) {
proto_tree_add_item(tree, hf_zebra_metric,
tvb, offset, 4, ENC_BIG_ENDIAN);
offset += 4;
}
return offset;
}
static void
decode_ipv4_attribute(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item, int* hfValue, int offset, int length)
{
guint32 ip_address;
if (length < 8) {
expert_add_info(pinfo, item, &ei_opsi_short_attribute);
return;
}
ip_address = tvb_get_ipv4(tvb, offset+4);
proto_tree_add_ipv4(tree, *hfValue, tvb, offset+4, 4, ip_address);
}
static int
dissect_msnip_gm(tvbuff_t *tvb, packet_info *pinfo, proto_tree *parent_tree, int offset)
{
guint8 count;
/* group count */
count = tvb_get_guint8(tvb, offset);
proto_tree_add_uint(parent_tree, hf_count, tvb, offset, 1, count);
offset += 1;
/* checksum */
igmp_checksum(parent_tree, tvb, hf_checksum, hf_checksum_bad, pinfo, 0);
offset += 2;
/* holdtime */
proto_tree_add_uint(parent_tree, hf_holdtime, tvb, offset, 4, count);
offset += 4;
while (count--) {
proto_tree *tree;
proto_item *item;
guint32 maddr;
guint8 masklen;
int old_offset = offset;
item = proto_tree_add_item(parent_tree, hf_groups,
tvb, offset, -1, ENC_NA);
tree = proto_item_add_subtree(item, ett_groups);
/* multicast group */
maddr = tvb_get_ipv4(tvb, offset);
proto_tree_add_ipv4(tree, hf_maddr, tvb, offset, 4,
maddr);
offset += 4;
/* mask length */
masklen = tvb_get_guint8(tvb, offset);
proto_tree_add_uint(tree, hf_mask, tvb,
offset, 1, masklen);
offset += 1;
/* skip 3 unused bytes */
offset += 3;
if (item) {
proto_item_set_text(item,"Group: %s/%d",
ip_to_str((guint8 *)&maddr), masklen);
proto_item_set_len(item, offset-old_offset);
}
}
return offset;
}
static int
dissect_msnip_rmr(tvbuff_t *tvb, packet_info *pinfo, proto_tree *parent_tree, int offset)
{
guint8 count;
/* group count */
count = tvb_get_guint8(tvb, offset);
proto_tree_add_uint(parent_tree, hf_count, tvb, offset, 1, count);
offset += 1;
/* checksum */
igmp_checksum(parent_tree, tvb, hf_checksum, hf_checksum_bad, pinfo, 0);
offset += 2;
while (count--) {
proto_tree *tree;
proto_item *item;
guint8 rec_type;
guint32 maddr;
int old_offset = offset;
item = proto_tree_add_item(parent_tree, hf_groups,
tvb, offset, -1, ENC_NA);
tree = proto_item_add_subtree(item, ett_groups);
/* record type */
rec_type = tvb_get_guint8(tvb, offset);
proto_tree_add_uint(tree, hf_rec_type, tvb, offset, 1, rec_type);
offset += 1;
/* skip 3 unused bytes */
offset += 3;
/* multicast group */
maddr = tvb_get_ipv4(tvb, offset);
proto_tree_add_ipv4(tree, hf_maddr, tvb, offset, 4,
maddr);
offset += 4;
if (item) {
proto_item_set_text(item,"Group: %s %s",
ip_to_str((guint8 *)&maddr),
val_to_str(rec_type, msnip_rec_types,
"Unknown Type:0x%02x"));
proto_item_set_len(item, offset-old_offset);
}
}
return offset;
}
/*
* dissect the description of link in roofnet
*/
static void dissect_roofnet_link(proto_tree *tree, tvbuff_t *tvb, guint *offset, guint link)
{
proto_item *it= NULL;
proto_tree *subtree= NULL;
ptvcursor_t *cursor= NULL;
guint32 addr_src= 0;
guint32 addr_dst= 0;
addr_src= tvb_get_ipv4(tvb, *offset + ROOFNET_LINK_OFFSET_SRC);
addr_dst= tvb_get_ipv4(tvb, *offset + ROOFNET_LINK_OFFSET_DST);
it = proto_tree_add_text(tree, tvb, *offset, ROOFNET_LINK_LEN,
"link: %u, src: %s, dst: %s",
link,
(char*)get_hostname(addr_src),
(char*)get_hostname(addr_dst));
subtree= proto_item_add_subtree(it, ett_roofnet_link);
proto_tree_add_ipv4(subtree, hf_roofnet_link_src, tvb, *offset, 4, addr_src);
*offset += 4;
cursor = ptvcursor_new(subtree, tvb, *offset);
ptvcursor_add(cursor, hf_roofnet_link_forward, 4, FALSE);
ptvcursor_add(cursor, hf_roofnet_link_rev, 4, FALSE);
ptvcursor_add(cursor, hf_roofnet_link_seq, 4, FALSE);
ptvcursor_add(cursor, hf_roofnet_link_age, 4, FALSE);
ptvcursor_free(cursor);
*offset = ptvcursor_current_offset(cursor);
proto_tree_add_ipv4(subtree, hf_roofnet_link_dst, tvb, *offset, 4, addr_dst);
/* don't increment offset here because the dst of this link is the src of the next one */
}
static int
parse_teredo_orig(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree,
int offset, e_teredohdr *teredoh)
{
proto_item *ti = NULL;
col_append_sep_str (pinfo->cinfo, COL_INFO, ", ",
"Origin indication");
if (tree) {
ti = proto_tree_add_item(tree, hf_teredo_orig, tvb, offset,
8, ENC_NA);
tree = proto_item_add_subtree(ti, ett_teredo_orig);
}
offset += 2;
teredoh->th_orgport = tvb_get_ntohs(tvb, offset);
if (tree) {
/*
* The "usual arithmetic conversions" will convert
* "teredoh->th_orgport" to an "int" (because all
* "unsigned short" values will fit in an "int"),
* which will zero-extend it. This means that
* complementing it will turn all the zeroes in
* the upper 16 bits into ones; we just want the
* lower 16 bits (containing the port number)
* complemented, with the result zero-extended.
*
* That's what the cast is for.
*/
proto_tree_add_uint(tree, hf_teredo_orig_port, tvb,
offset, 2,
(guint16)~teredoh->th_orgport);
}
offset += 2;
teredoh->th_iporgaddr = tvb_get_ipv4(tvb, offset);
if (tree) {
proto_tree_add_ipv4(tree, hf_teredo_orig_addr, tvb,
offset, 4, ~teredoh->th_iporgaddr);
}
offset += 4;
return offset;
}
static void dissect_vektor_igrp (tvbuff_t *tvb, proto_tree *igrp_vektor_tree, guint8 network)
{
union {
guint8 addr_bytes[4];
guint32 addr_word;
} addr;
address ip_addr;
if (network != 0) {
/*
* Interior route; network is the high-order byte, and the three
* bytes in the vector are the lower 3 bytes.
*/
addr.addr_bytes[0]=network;
addr.addr_bytes[1]=tvb_get_guint8(tvb,0);
addr.addr_bytes[2]=tvb_get_guint8(tvb,1);
addr.addr_bytes[3]=tvb_get_guint8(tvb,2);
} else {
/*
* System or exterior route; the three bytes in the vector are
* the three high-order bytes, and the low-order byte is 0.
*/
addr.addr_bytes[0]=tvb_get_guint8(tvb,0);
addr.addr_bytes[1]=tvb_get_guint8(tvb,1);
addr.addr_bytes[2]=tvb_get_guint8(tvb,2);
addr.addr_bytes[3]=0;
}
set_address(&ip_addr, AT_IPv4, 4, &addr);
igrp_vektor_tree = proto_tree_add_subtree_format(igrp_vektor_tree, tvb, 0 ,14,
ett_igrp_net, NULL, "Entry for network %s", address_to_str(wmem_packet_scope(), &ip_addr));
proto_tree_add_ipv4(igrp_vektor_tree, hf_igrp_network, tvb, 0, 3, addr.addr_word);
proto_tree_add_item(igrp_vektor_tree, hf_igrp_delay, tvb, 3, 3, ENC_BIG_ENDIAN);
proto_tree_add_item(igrp_vektor_tree, hf_igrp_bandwidth, tvb, 6, 3, ENC_BIG_ENDIAN);
proto_tree_add_uint_format_value(igrp_vektor_tree, hf_igrp_mtu, tvb, 9, 2, tvb_get_ntohs(tvb,9), "%d bytes", tvb_get_ntohs(tvb,9));
proto_tree_add_item(igrp_vektor_tree, hf_igrp_reliability, tvb, 11, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(igrp_vektor_tree, hf_igrp_load, tvb, 12, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(igrp_vektor_tree, hf_igrp_hop_count, tvb, 13, 1, ENC_BIG_ENDIAN);
}
static guint
dissect_s5066_address(tvbuff_t *tvb, guint offset, proto_tree *tree, gint source)
{
proto_item *ti = NULL;
proto_tree *s5066_tree_address = NULL;
guint32 addr;
if (source) {
ti = proto_tree_add_text(tree, tvb, offset, 4, "Source Address");
}
else {
ti = proto_tree_add_text(tree, tvb, offset, 4, "Destination Address");
}
s5066_tree_address = proto_item_add_subtree(ti, ett_s5066_address);
proto_tree_add_item(s5066_tree_address, hf_s5066_ad_size, tvb, offset, 1, FALSE);
proto_tree_add_item(s5066_tree_address, hf_s5066_ad_group, tvb, offset, 1, FALSE);
addr = tvb_get_ntohl(tvb, offset);
addr = addr & 0x1FFFFFFF;
proto_tree_add_ipv4(s5066_tree_address, hf_s5066_ad_address, tvb, offset, 4, g_htonl(addr));
return offset + 4;
}
static void
dissect_tpcp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
{
tpcpdu_t tpcph;
proto_tree *tpcp_tree = NULL, *field_tree = NULL;
proto_item *ti, *tf;
guint8 length = TPCP_VER_1_LENGTH;
col_set_str(pinfo->cinfo, COL_PROTOCOL, "TPCP");
col_clear(pinfo->cinfo, COL_INFO);
/* need to find out which version!! */
tpcph.version = tvb_get_guint8(tvb, 0);
/* as version 1 and 2 are so similar use the same structure, just don't use as much for version 1*/
if (tpcph.version == TPCP_VER_1) {
length = TPCP_VER_1_LENGTH;
tvb_memcpy(tvb, (guint8 *) &tpcph, 0, length);
} else if (tpcph.version == TPCP_VER_2){
length = TPCP_VER_2_LENGTH;
tvb_memcpy(tvb, (guint8 *) &tpcph, 0, length);
}
tpcph.id = g_ntohs(tpcph.id);
tpcph.flags = g_ntohs(tpcph.flags);
tpcph.cport = g_ntohs(tpcph.cport);
if (check_col(pinfo->cinfo, COL_INFO))
col_add_fstr(pinfo->cinfo, COL_INFO,"%s id %d CPort %s CIP %s SIP %s",
val_to_str(tpcph.type, type_vals, "Unknown"),
tpcph.id,
get_udp_port(tpcph.cport),
ip_to_str((guint8 *)&tpcph.caddr),
ip_to_str((guint8 *)&tpcph.saddr));
if (tree) {
ti = proto_tree_add_protocol_format(tree, proto_tpcp, tvb, 0, length,
"Alteon WebSystems - Transparent Proxy Cache Protocol");
tpcp_tree = proto_item_add_subtree(ti, ett_tpcp);
proto_tree_add_item(tpcp_tree, hf_tpcp_version, tvb, 0, 1, tpcph.version);
proto_tree_add_uint_format(tpcp_tree, hf_tpcp_type, tvb, 1, 1, tpcph.type,
"Type: %s (%d)",
val_to_str(tpcph.type, type_vals, "Unknown"), tpcph.type);
/* flags next , i'll do that when I can work out how to do it :-( */
tf = proto_tree_add_text(tpcp_tree, tvb, 2, 2, "Flags: 0x%04x",tpcph.flags);
field_tree = proto_item_add_subtree(tf, ett_tpcp_flags);
proto_tree_add_boolean(field_tree, hf_tpcp_flags_tcp, tvb, 2, 2, tpcph.flags);
proto_tree_add_boolean(field_tree, hf_tpcp_flags_redir, tvb, 2,2, tpcph.flags);
proto_tree_add_boolean(field_tree, hf_tpcp_flags_xon, tvb, 2, 2, tpcph.flags);
proto_tree_add_boolean(field_tree, hf_tpcp_flags_xoff, tvb, 2, 2, tpcph.flags);
proto_tree_add_uint(tpcp_tree, hf_tpcp_id, tvb, 4, 2, tpcph.id);
proto_tree_add_uint_format(tpcp_tree, hf_tpcp_cport, tvb, 6, 2, tpcph.cport,
"Client Source port: %s", get_udp_port(tpcph.cport));
proto_tree_add_ipv4(tpcp_tree, hf_tpcp_caddr, tvb, 8, 4, tpcph.caddr);
proto_tree_add_ipv4(tpcp_tree, hf_tpcp_saddr, tvb, 12, 4, tpcph.saddr);
if (tpcph.version == TPCP_VER_2) {
proto_tree_add_ipv4(tpcp_tree, hf_tpcp_vaddr, tvb, 16, 4, tpcph.vaddr);
proto_tree_add_ipv4(tpcp_tree, hf_tpcp_rasaddr, tvb, 20, 4, tpcph.rasaddr);
proto_tree_add_text(tpcp_tree, tvb, 24, 4, "Signature: %u", tpcph.signature);
}
}
}
static int
dissect_zebra_request(proto_tree *tree, gboolean request, tvbuff_t *tvb,
int offset, guint16 len, guint8 command)
{
guint32 prefix4;
guint16 i;
guint8 buffer6[16], prefixlen, message;
proto_item *ti;
proto_tree *msg_tree;
proto_tree_add_uint(tree, hf_zebra_len, tvb, offset, 2, len);
offset += 2;
proto_tree_add_uint(tree, hf_zebra_command, tvb, offset, 1,
command);
offset += 1;
switch(command) {
case ZEBRA_INTERFACE_ADD:
case ZEBRA_INTERFACE_UP:
case ZEBRA_INTERFACE_DOWN:
if (request) break;
/* Request just subscribes to messages */
proto_tree_add_item(tree, hf_zebra_interface,
tvb, offset, INTERFACE_NAMSIZ, ENC_ASCII|ENC_NA);
offset += INTERFACE_NAMSIZ;
proto_tree_add_item(tree, hf_zebra_index, tvb,
offset, 4, ENC_BIG_ENDIAN);
offset += 4;
proto_tree_add_item(tree, hf_zebra_intflags, tvb,
offset, 4, ENC_BIG_ENDIAN);
offset += 4;
proto_tree_add_item(tree, hf_zebra_metric, tvb,
offset, 4, ENC_BIG_ENDIAN);
offset += 4;
proto_tree_add_item(tree, hf_zebra_mtu, tvb,
offset, 4, ENC_BIG_ENDIAN);
offset += 4;
proto_tree_add_item(tree, hf_zebra_bandwidth, tvb,
offset, 4, ENC_BIG_ENDIAN);
offset += 4;
break;
case ZEBRA_INTERFACE_DELETE:
proto_tree_add_item(tree, hf_zebra_interface,
tvb, offset, INTERFACE_NAMSIZ, ENC_ASCII|ENC_NA);
offset += INTERFACE_NAMSIZ;
proto_tree_add_item(tree, hf_zebra_index, tvb,
offset, 4, ENC_BIG_ENDIAN);
offset += 4;
break;
case ZEBRA_INTERFACE_ADDRESS_ADD:
case ZEBRA_INTERFACE_ADDRESS_DELETE:
proto_tree_add_item(tree, hf_zebra_index, tvb,
offset, 4, ENC_BIG_ENDIAN);
offset += 4;
proto_tree_add_item(tree, hf_zebra_family, tvb,
offset, 1, ENC_BIG_ENDIAN);
offset += 1;
/* XXX - switch on the address family here, instead? */
if (len == 17) { /* IPv4 */
proto_tree_add_item(tree, hf_zebra_prefix4,
tvb, offset, 4, ENC_BIG_ENDIAN);
offset += 4;
}
else if (len == 41) { /* IPv6 */
proto_tree_add_item(tree, hf_zebra_prefix6,
tvb, offset, 16, ENC_NA);
offset += 16;
}
else break;
proto_tree_add_item(tree, hf_zebra_prefixlen, tvb,
offset, 1, ENC_BIG_ENDIAN);
offset += 1;
if (len == 17) { /* IPv4 */
proto_tree_add_item(tree, hf_zebra_dest4,
tvb, offset, 4, ENC_BIG_ENDIAN);
offset += 4;
}
else if (len == 41) { /* IPv6 */
proto_tree_add_item(tree, hf_zebra_dest6,
tvb, offset, 16, ENC_NA);
offset += 16;
}
break;
case ZEBRA_IPV4_ROUTE_ADD:
case ZEBRA_IPV4_ROUTE_DELETE:
proto_tree_add_item(tree, hf_zebra_type, tvb,
offset, 1, ENC_BIG_ENDIAN);
offset += 1;
proto_tree_add_item(tree, hf_zebra_rtflags, tvb,
offset, 1, ENC_BIG_ENDIAN);
offset += 1;
message = tvb_get_guint8(tvb, offset);
ti = proto_tree_add_uint(tree, hf_zebra_message, tvb,
offset, 1, message);
msg_tree = proto_item_add_subtree(ti, ett_message);
proto_tree_add_boolean(msg_tree, hf_zebra_msg_nexthop,
tvb, offset, 1, message);
proto_tree_add_boolean(msg_tree, hf_zebra_msg_index,
tvb, offset, 1, message);
proto_tree_add_boolean(msg_tree, hf_zebra_msg_distance,
tvb, offset, 1, message);
proto_tree_add_boolean(msg_tree, hf_zebra_msg_metric,
tvb, offset, 1, message);
offset += 1;
prefixlen = tvb_get_guint8(tvb, offset);
proto_tree_add_uint(tree, hf_zebra_prefixlen, tvb,
offset, 1, prefixlen);
offset += 1;
prefix4 = 0;
tvb_memcpy(tvb, (guint8 *)&prefix4, offset,
MIN((unsigned) PSIZE(prefixlen), sizeof prefix4));
proto_tree_add_ipv4(tree, hf_zebra_prefix4,
tvb, offset, PSIZE(prefixlen), prefix4);
offset += PSIZE(prefixlen);
if (message & ZEBRA_ZAPI_MESSAGE_NEXTHOP) {
i = tvb_get_guint8(tvb, offset);
proto_tree_add_uint(tree, hf_zebra_nexthopnum,
tvb, offset, 1, i);
offset += 1;
if (i>len) break; /* Sanity */
while (i--) {
proto_tree_add_item(tree,
hf_zebra_nexthop4, tvb,
offset, 4, ENC_BIG_ENDIAN);
offset += 4;
}
}
if (message & ZEBRA_ZAPI_MESSAGE_IFINDEX) {
i = tvb_get_guint8(tvb, offset);
proto_tree_add_uint(tree, hf_zebra_indexnum,
tvb, offset, 1, i);
offset += 1;
if (i>len) break; /* Sanity */
while (i--) {
proto_tree_add_item(tree,
hf_zebra_index, tvb,
offset, 4, ENC_BIG_ENDIAN);
offset += 4;
}
}
if (message & ZEBRA_ZAPI_MESSAGE_DISTANCE) {
proto_tree_add_item(tree, hf_zebra_distance,
tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
}
if (message & ZEBRA_ZAPI_MESSAGE_METRIC) {
proto_tree_add_item(tree, hf_zebra_metric,
tvb, offset, 4, ENC_BIG_ENDIAN);
offset += 4;
}
break;
case ZEBRA_IPV6_ROUTE_ADD:
case ZEBRA_IPV6_ROUTE_DELETE:
proto_tree_add_item(tree, hf_zebra_type, tvb,
offset, 1, ENC_BIG_ENDIAN);
offset += 1;
proto_tree_add_item(tree, hf_zebra_rtflags, tvb,
offset, 1, ENC_BIG_ENDIAN);
offset += 1;
message = tvb_get_guint8(tvb, offset);
ti = proto_tree_add_uint(tree, hf_zebra_message, tvb,
offset, 1, message);
msg_tree = proto_item_add_subtree(ti, ett_message);
proto_tree_add_boolean(msg_tree, hf_zebra_msg_nexthop,
tvb, offset, 1, message);
proto_tree_add_boolean(msg_tree, hf_zebra_msg_index,
tvb, offset, 1, message);
proto_tree_add_boolean(msg_tree, hf_zebra_msg_distance,
tvb, offset, 1, message);
proto_tree_add_boolean(msg_tree, hf_zebra_msg_metric,
tvb, offset, 1, message);
offset += 1;
prefixlen = tvb_get_guint8(tvb, offset);
proto_tree_add_uint(tree, hf_zebra_prefixlen, tvb,
offset, 1, prefixlen);
offset += 1;
memset(buffer6, '\0', sizeof buffer6);
tvb_memcpy(tvb, buffer6, offset,
MIN((unsigned) PSIZE(prefixlen), sizeof buffer6));
proto_tree_add_ipv6(tree, hf_zebra_prefix6,
tvb, offset, PSIZE(prefixlen), buffer6);
offset += PSIZE(prefixlen);
if (message & ZEBRA_ZAPI_MESSAGE_NEXTHOP) {
i = tvb_get_guint8(tvb, offset);
proto_tree_add_uint(tree, hf_zebra_nexthopnum,
tvb, offset, 1, i);
offset += 1;
if (i>len) break; /* Sanity */
while (i--) {
proto_tree_add_item(tree,
hf_zebra_nexthop6, tvb,
offset, 16, ENC_NA);
offset += 16;
}
}
if (message & ZEBRA_ZAPI_MESSAGE_IFINDEX) {
i = tvb_get_guint8(tvb, offset);
proto_tree_add_uint(tree, hf_zebra_indexnum,
tvb, offset, 1, i);
offset += 1;
if (i>len) break; /* Sanity */
while (i--) {
proto_tree_add_item(tree,
hf_zebra_index, tvb,
offset, 4, ENC_BIG_ENDIAN);
offset += 4;
}
}
if (message & ZEBRA_ZAPI_MESSAGE_DISTANCE) {
proto_tree_add_item(tree, hf_zebra_distance,
tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
}
if (message & ZEBRA_ZAPI_MESSAGE_METRIC) {
proto_tree_add_item(tree, hf_zebra_metric,
tvb, offset, 4, ENC_BIG_ENDIAN);
offset += 4;
}
break;
case ZEBRA_REDISTRIBUTE_ADD:
case ZEBRA_REDISTRIBUTE_DELETE:
proto_tree_add_item(tree, hf_zebra_type, tvb,
offset, 1, ENC_BIG_ENDIAN);
offset += 1;
break;
case ZEBRA_REDISTRIBUTE_DEFAULT_ADD:
case ZEBRA_REDISTRIBUTE_DEFAULT_DELETE:
break;
case ZEBRA_IPV4_NEXTHOP_LOOKUP:
proto_tree_add_item(tree, hf_zebra_nexthop4,
tvb, offset, 4, ENC_BIG_ENDIAN);
offset += 4;
proto_tree_add_item(tree, hf_zebra_metric,
tvb, offset, 4, ENC_BIG_ENDIAN);
offset += 4;
break;
case ZEBRA_IPV6_NEXTHOP_LOOKUP:
/* Not yet implemeted in ZEBRA */
break;
}
return offset;
}
static void
dissect_aodv_rreq(tvbuff_t *tvb, packet_info *pinfo, proto_tree *aodv_tree,
proto_item *ti, gboolean is_ipv6)
{
int offset = 1;
proto_item *tj;
proto_tree *aodv_flags_tree;
guint8 flags;
guint8 hop_count;
guint32 rreq_id;
guint32 dest_addr_v4;
struct e_in6_addr dest_addr_v6;
guint32 dest_seqno;
guint32 orig_addr_v4;
struct e_in6_addr orig_addr_v6;
guint32 orig_seqno;
int extlen;
flags = tvb_get_guint8(tvb, offset);
if (aodv_tree) {
tj = proto_tree_add_text(aodv_tree, tvb, offset, 1, "Flags:");
aodv_flags_tree = proto_item_add_subtree(tj, ett_aodv_flags);
proto_tree_add_boolean(aodv_flags_tree, hf_aodv_flags_rreq_join,
tvb, offset, 1, flags);
proto_tree_add_boolean(aodv_flags_tree, hf_aodv_flags_rreq_repair,
tvb, offset, 1, flags);
proto_tree_add_boolean(aodv_flags_tree, hf_aodv_flags_rreq_gratuitous,
tvb, offset, 1, flags);
proto_tree_add_boolean(aodv_flags_tree, hf_aodv_flags_rreq_destinationonly,
tvb, offset, 1, flags);
proto_tree_add_boolean(aodv_flags_tree, hf_aodv_flags_rreq_unknown,
tvb, offset, 1, flags);
if (flags & RREQ_JOIN)
proto_item_append_text(tj, " J");
if (flags & RREQ_REP)
proto_item_append_text(tj, " R");
if (flags & RREQ_GRATRREP)
proto_item_append_text(tj, " G");
if (flags & RREQ_DESTONLY)
proto_item_append_text(tj, " D");
if (flags & RREQ_UNKNSEQ)
proto_item_append_text(tj, " U");
}
offset += 2; /* skip reserved byte */
hop_count = tvb_get_guint8(tvb, offset);
if (aodv_tree)
proto_tree_add_uint(aodv_tree, hf_aodv_hopcount, tvb, offset, 1,
hop_count);
offset += 1;
rreq_id = tvb_get_ntohl(tvb, offset);
if (aodv_tree)
proto_tree_add_uint(aodv_tree, hf_aodv_rreq_id, tvb, offset, 4,
rreq_id);
offset += 4;
if (is_ipv6) {
tvb_get_ipv6(tvb, offset, &dest_addr_v6);
if (aodv_tree) {
proto_tree_add_ipv6(aodv_tree, hf_aodv_dest_ipv6, tvb, offset,
INET6_ADDRLEN, (guint8 *)&dest_addr_v6);
proto_item_append_text(ti, ", Dest IP: %s",
ip6_to_str(&dest_addr_v6));
}
col_append_fstr(pinfo->cinfo, COL_INFO, ", D: %s",
ip6_to_str(&dest_addr_v6));
offset += INET6_ADDRLEN;
} else {
dest_addr_v4 = tvb_get_ipv4(tvb, offset);
if (aodv_tree) {
proto_tree_add_ipv4(aodv_tree, hf_aodv_dest_ip, tvb, offset, 4,
dest_addr_v4);
proto_item_append_text(ti, ", Dest IP: %s",
ip_to_str((guint8 *)&dest_addr_v4));
}
col_append_fstr(pinfo->cinfo, COL_INFO, ", D: %s",
ip_to_str((guint8 *)&dest_addr_v4));
offset += 4;
}
dest_seqno = tvb_get_ntohl(tvb, offset);
if (aodv_tree)
proto_tree_add_uint(aodv_tree, hf_aodv_dest_seqno, tvb, offset, 4,
dest_seqno);
offset += 4;
if (is_ipv6) {
tvb_get_ipv6(tvb, offset, &orig_addr_v6);
if (aodv_tree) {
proto_tree_add_ipv6(aodv_tree, hf_aodv_orig_ipv6, tvb, offset,
INET6_ADDRLEN, (guint8 *)&orig_addr_v6);
proto_item_append_text(ti, ", Orig IP: %s",
ip6_to_str(&orig_addr_v6));
}
col_append_fstr(pinfo->cinfo, COL_INFO, ", O: %s",
ip6_to_str(&orig_addr_v6));
offset += INET6_ADDRLEN;
} else {
orig_addr_v4 = tvb_get_ipv4(tvb, offset);
if (aodv_tree) {
proto_tree_add_ipv4(aodv_tree, hf_aodv_orig_ip, tvb, offset, 4,
orig_addr_v4);
proto_item_append_text(ti, ", Orig IP: %s",
ip_to_str((guint8 *)&orig_addr_v4));
}
col_append_fstr(pinfo->cinfo, COL_INFO, ", O: %s",
ip_to_str((guint8 *)&orig_addr_v4));
offset += 4;
}
orig_seqno = tvb_get_ntohl(tvb, offset);
if (aodv_tree)
proto_tree_add_uint(aodv_tree, hf_aodv_orig_seqno, tvb, offset, 4,
orig_seqno);
col_append_fstr(pinfo->cinfo, COL_INFO, " Id=%u Hcnt=%u DSN=%u OSN=%u",
rreq_id,
hop_count,
dest_seqno,
orig_seqno);
offset += 4;
if (aodv_tree) {
extlen = tvb_reported_length_remaining(tvb, offset);
if (extlen > 0)
dissect_aodv_ext(tvb, offset, aodv_tree);
}
}
static int
dissect_dtpt_sockaddr(tvbuff_t *tvb, guint offset, proto_tree *tree, int hfindex, int sockaddr_type)
{
guint32 sockaddr_length = 0;
proto_item *sockaddr_item = NULL;
proto_tree *sockaddr_tree = NULL;
guint32 sockaddr_len1 = 0;
guint32 sockaddr_len2 = 0;
switch (sockaddr_type) {
case SOCKADDR_WITH_LEN:
sockaddr_len1=4;
sockaddr_len2=16;
break;
case SOCKADDR_CONNECT:
sockaddr_len1=0;
sockaddr_len2=30;
break;
}
if (sockaddr_type == SOCKADDR_WITH_LEN)
sockaddr_length = tvb_get_letohl(tvb, offset + 0);
if (tree) {
sockaddr_item = proto_tree_add_text(tree,
tvb, offset, sockaddr_len1+sockaddr_len2, "%s", proto_registrar_get_name(hfindex));
if (sockaddr_item)
sockaddr_tree = proto_item_add_subtree(sockaddr_item, ett_dtpt_sockaddr);
if (sockaddr_tree) {
if (sockaddr_type == SOCKADDR_WITH_LEN)
proto_tree_add_uint(sockaddr_tree, hf_dtpt_sockaddr_length,
tvb, offset+0, 4, sockaddr_length);
}
}
offset += sockaddr_len1;
if (sockaddr_tree) {
switch (sockaddr_type) {
case SOCKADDR_WITH_LEN: {
guint16 family;
family = tvb_get_letohs(tvb, offset);
proto_tree_add_uint(sockaddr_tree, hf_dtpt_sockaddr_family,
tvb, offset, 2, family);
switch (family) {
case WINSOCK_AF_INET: {
guint16 port;
guint32 addr;
port = tvb_get_ntohs(tvb,offset+2);
proto_tree_add_uint(sockaddr_tree, hf_dtpt_sockaddr_port,
tvb, offset+2,2,port);
addr = tvb_get_ipv4(tvb,offset+4);
proto_tree_add_ipv4(sockaddr_tree, hf_dtpt_sockaddr_address,
tvb, offset+4,4,addr);
proto_tree_add_text(sockaddr_tree, tvb, offset+8, 8, "Padding");
proto_item_append_text(sockaddr_item, ": %s:%d", ip_to_str((guint8*)&addr), port);
}
break;
}
}
break;
case SOCKADDR_CONNECT: {
guint32 family;
family = tvb_get_letohl(tvb, offset+0);
proto_tree_add_uint(sockaddr_tree, hf_dtpt_sockaddr_family,
tvb, offset+0, 4, family);
switch (family) {
case WINSOCK_AF_INET: {
guint16 port;
guint32 addr;
proto_tree_add_text(sockaddr_tree, tvb, offset+4, 4, "Padding");
port = tvb_get_ntohs(tvb,offset+8);
proto_tree_add_uint(sockaddr_tree, hf_dtpt_sockaddr_port,
tvb, offset+8,2,port);
addr = tvb_get_ipv4(tvb,offset+10);
proto_tree_add_ipv4(sockaddr_tree, hf_dtpt_sockaddr_address,
tvb, offset+10,4,addr);
proto_tree_add_text(sockaddr_tree, tvb, offset+14, 16, "Padding");
proto_item_append_text(sockaddr_item, ": %s:%d", ip_to_str((guint8*)&addr), port);
}
break;
}
}
break;
}
}
offset += sockaddr_len2;
return offset;
}
/* dissector of each payload */
static int
dissect_xtp_aseg(tvbuff_t *tvb, proto_tree *tree, guint32 offset) {
guint32 len = tvb_length_remaining(tvb, offset);
guint32 start = offset;
proto_item *ti, *ti2, *top_ti;
proto_tree *xtp_subtree;
struct xtp_ip_addr_seg aseg[1];
int error = 0;
top_ti = proto_tree_add_text(tree, tvb, offset, len, "Address Segment");
xtp_subtree = proto_item_add_subtree(top_ti, ett_xtp_aseg);
if (len < XTP_NULL_ADDR_SEG_LEN) {
proto_item_append_text(top_ti, ", bogus length(%u, must be at least %u)",
len, XTP_NULL_ADDR_SEG_LEN);
return 0;
}
/** parse common fields **/
/* alen(2) */
aseg->alen = tvb_get_ntohs(tvb, offset);
offset += 2;
/* adomain(1) */
aseg->adomain = tvb_get_guint8(tvb, offset);
offset++;
/* aformat(1) */
aseg->aformat = tvb_get_guint8(tvb, offset);
/** display common fields **/
offset = start;
/* alen(2) */
ti = proto_tree_add_uint(xtp_subtree, hf_xtp_aseg_alen,
tvb, offset, 2, aseg->alen);
offset += 2;
if (aseg->alen > len) {
proto_item_append_text(ti, ", bogus length(%u, must be at most %u)",
aseg->alen, len);
error = 1;
}
/* adomain(1) */
proto_tree_add_uint(xtp_subtree, hf_xtp_aseg_adomain,
tvb, offset, 1, aseg->adomain);
offset++;
/* aformat(1) */
ti2 = proto_tree_add_uint(xtp_subtree, hf_xtp_aseg_aformat,
tvb, offset, 1, aseg->aformat);
offset++;
switch (aseg->aformat) {
case 0:
if (aseg->alen != XTP_NULL_ADDR_SEG_LEN) {
proto_item_append_text(ti, ", bogus length(%u, must be %u)",
aseg->alen, XTP_NULL_ADDR_SEG_LEN);
error = 1;
}
break;
case 1:
if (aseg->alen != XTP_IP_ADDR_SEG_LEN) {
proto_item_append_text(ti, ", bogus length(%u, must be %u)",
aseg->alen, XTP_IP_ADDR_SEG_LEN);
error = 1;
}
break;
default:
if (aseg->aformat < 128) {
proto_item_append_text(ti2,
", Unsupported aformat(%u)", aseg->aformat);
error = 1;
}
break;
}
if (error)
return (offset - start);
/** parse and display each address fileds */
switch (aseg->aformat) {
case 0:
/* address(4) */
aseg->dsthost = tvb_get_ntohl(tvb, offset);
proto_tree_add_uint(xtp_subtree, hf_xtp_aseg_address,
tvb, offset, 4, aseg->dsthost);
offset += 4;
break;
case 1:
/* dsthost(4) */
aseg->dsthost = tvb_get_ipv4(tvb, offset);
proto_tree_add_ipv4(xtp_subtree, hf_xtp_aseg_dsthost,
tvb, offset, 4, aseg->dsthost);
offset += 4;
/* srchost(4) */
aseg->srchost = tvb_get_ipv4(tvb, offset);
proto_tree_add_ipv4(xtp_subtree, hf_xtp_aseg_srchost,
tvb, offset, 4, aseg->srchost);
offset += 4;
/* dstport(2) */
aseg->dstport = tvb_get_ntohs(tvb, offset);
proto_tree_add_uint(xtp_subtree, hf_xtp_aseg_dstport,
tvb, offset, 2, aseg->dstport);
offset += 2;
/* srcport(2) */
aseg->srcport = tvb_get_ntohs(tvb, offset);
proto_tree_add_uint(xtp_subtree, hf_xtp_aseg_srcport,
tvb, offset, 2, aseg->srcport);
offset += 2;
/** add summary **/
proto_item_append_text(top_ti, ", Dst Port: %u", aseg->dstport);
proto_item_append_text(top_ti, ", Src Port: %u", aseg->srcport);
break;
default:
break;
}
return (offset - start);
}
static int
dissect_ppcap_source_address(tvbuff_t *tvb, packet_info *pinfo, proto_tree * ppcap_tree1, int offset)
{
int key1;
guint16 msg_len;
msg_len = tvb_get_ntohs(tvb, offset);
proto_tree_add_item( ppcap_tree1, hf_ppcap_length, tvb, offset, 2, ENC_BIG_ENDIAN);
offset = offset + 2;
proto_tree_add_item(ppcap_tree1, hf_ppcap_reserved, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
key1 = tvb_get_ntohs(tvb, offset);
proto_tree_add_item(ppcap_tree1, hf_ppcap_address_type, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
if (key1 == 1)
{
proto_tree_add_item(ppcap_tree1, hf_ppcap_ssn, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
proto_tree_add_item(ppcap_tree1, hf_ppcap_spc, tvb, offset, 3, ENC_BIG_ENDIAN);
/*src_addr1 = (guint32 )tvb_get_ntoh24(tvb, offset);*/
mtp3_addr_opc = wmem_new0(wmem_packet_scope(), mtp3_addr_pc_t);
mtp3_addr_opc->pc = (guint32 )tvb_get_ntoh24(tvb, offset);
mtp3_addr_opc->type = ITU_STANDARD;
mtp3_addr_opc->ni = 0;
/*SET_ADDRESS(&pinfo->net_src, AT_SS7PC, sizeof(mtp3_addr_pc_t), (guint8 *) mtp3_addr_opc);*/
SET_ADDRESS(&pinfo->src, AT_SS7PC, sizeof(mtp3_addr_pc_t), (guint8 *) mtp3_addr_opc);
if (msg_len%4)
msg_len = msg_len + (4 - (msg_len%4));
offset += msg_len-1;
return offset;
}
else if (key1 == 2)
{
proto_tree_add_item(ppcap_tree1, hf_ppcap_opc, tvb, offset, msg_len, ENC_BIG_ENDIAN);
/*src_addr1 = (guint32 )tvb_get_ntoh24(tvb, offset);*/
mtp3_addr_opc = wmem_new0(wmem_packet_scope(), mtp3_addr_pc_t);
mtp3_addr_opc->pc = tvb_get_ntohl(tvb, offset);
mtp3_addr_opc->type = ITU_STANDARD;
mtp3_addr_opc->ni = 0;
SET_ADDRESS(&pinfo->src, AT_SS7PC, sizeof(mtp3_addr_pc_t), (guint8 *) mtp3_addr_opc);
}
else if (key1 == 3)
{
if (msg_len%16 != 0)
{
proto_tree_add_ipv4(ppcap_tree1, hf_ppcap_source_ip_address1, tvb, offset, msg_len, tvb_get_ipv4(tvb, offset));
TVB_SET_ADDRESS(&pinfo->net_src, AT_IPv4, tvb, offset, 4);
COPY_ADDRESS_SHALLOW(&pinfo->src, &pinfo->net_src);
}
else
{
struct e_in6_addr value;
tvb_get_ipv6(tvb, offset, &value);
proto_tree_add_ipv6(ppcap_tree1, hf_ppcap_source_ip_address2, tvb, offset, msg_len, &value);
TVB_SET_ADDRESS(&pinfo->net_src, AT_IPv6, tvb, offset, 6);
COPY_ADDRESS_SHALLOW(&pinfo->src, &pinfo->net_src);
}
}
else if (key1 == 4)
{
proto_tree_add_item(ppcap_tree1, hf_ppcap_source_nodeid, tvb, offset, msg_len, ENC_ASCII|ENC_NA);
TVB_SET_ADDRESS(&pinfo->net_src, AT_STRINGZ, tvb, offset, msg_len);
COPY_ADDRESS_SHALLOW(&pinfo->src, &pinfo->net_src);
}
if (msg_len%4)
msg_len = msg_len + (4 - (msg_len%4));
offset += msg_len;
return offset;
}
static int
dissect_ppcap_destination_address(tvbuff_t *tvb, packet_info * pinfo, proto_tree * ppcap_tree1, int offset)
{
int key2;
guint16 msg_len;
msg_len = tvb_get_ntohs(tvb, offset);
proto_tree_add_item( ppcap_tree1, hf_ppcap_length, tvb, offset, 2, ENC_BIG_ENDIAN);
offset = offset + 2;
proto_tree_add_item(ppcap_tree1, hf_ppcap_destreserved, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
key2 = tvb_get_ntohs(tvb, offset);
proto_tree_add_item(ppcap_tree1, hf_ppcap_address_type, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
if (key2 == 1)
{
ssn = tvb_get_guint8(tvb, offset);
proto_tree_add_item(ppcap_tree1, hf_ppcap_ssn1, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
proto_tree_add_item(ppcap_tree1, hf_ppcap_spc1, tvb, offset, 3, ENC_BIG_ENDIAN);
/*dst_addr1 = (guint32 )tvb_get_ntoh24(tvb, offset);*/
mtp3_addr_dpc = wmem_new0(wmem_packet_scope(), mtp3_addr_pc_t);
mtp3_addr_dpc->pc = (guint32)tvb_get_ntoh24(tvb, offset);
mtp3_addr_dpc->type = ITU_STANDARD;
mtp3_addr_dpc->ni = 0;
SET_ADDRESS(&pinfo->dst, AT_SS7PC, sizeof(mtp3_addr_pc_t), (guint8 *) mtp3_addr_dpc);
if (msg_len%4)
msg_len = msg_len + (4 - (msg_len%4));
offset += msg_len-1;
return offset;
}
else if (key2 == 2)
{
proto_tree_add_item(ppcap_tree1, hf_ppcap_dpc, tvb, offset, 4, ENC_BIG_ENDIAN);
/*dst_addr1 = (guint32 )tvb_get_ntoh24(tvb, offset);*/
mtp3_addr_dpc = wmem_new0(wmem_packet_scope(), mtp3_addr_pc_t);
mtp3_addr_dpc->pc = tvb_get_ntohl(tvb, offset);
mtp3_addr_dpc->type = ITU_STANDARD;
mtp3_addr_dpc->ni = 0;
SET_ADDRESS(&pinfo->dst, AT_SS7PC, sizeof(mtp3_addr_pc_t), (guint8 *) mtp3_addr_dpc);
}
else if (key2 == 3)
{
if (msg_len%16 != 0)
{
proto_tree_add_ipv4(ppcap_tree1, hf_ppcap_destination_ip_address1, tvb, offset, msg_len, tvb_get_ipv4(tvb, offset));
TVB_SET_ADDRESS(&pinfo->net_dst, AT_IPv4, tvb, offset, 4);
COPY_ADDRESS_SHALLOW(&pinfo->dst, &pinfo->net_dst);
}
else
{
struct e_in6_addr value;
tvb_get_ipv6(tvb, offset,&value);
proto_tree_add_ipv6(ppcap_tree1, hf_ppcap_destination_ip_address2, tvb, offset, msg_len, &value);
TVB_SET_ADDRESS(&pinfo->net_dst, AT_IPv6, tvb, offset, 6);
COPY_ADDRESS_SHALLOW(&pinfo->dst, &pinfo->net_dst);
}
}
else if (key2 == 4)
{
char *string;
string = tvb_get_string_enc(wmem_packet_scope(), tvb, offset, msg_len, ENC_UTF_8|ENC_NA);
proto_tree_add_string(ppcap_tree1, hf_ppcap_destination_nodeid, tvb, offset, msg_len, string);
TVB_SET_ADDRESS(&pinfo->net_dst, AT_STRINGZ, tvb, offset, msg_len);
COPY_ADDRESS_SHALLOW(&pinfo->dst, &pinfo->net_dst);
}
if (msg_len%4)
msg_len = msg_len+(4-(msg_len%4));
offset += msg_len;
return offset;
}
static int
dissect_ppcap_source_address(tvbuff_t *tvb, packet_info *pinfo, proto_tree * ppcap_tree1, int offset, guint16 msg_len)
{
int key1;
const guchar *src_addr;
/*guint32 src_addr1;*/
proto_tree_add_item(ppcap_tree1, hf_ppcap_reserved, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
key1 = tvb_get_ntohs(tvb, offset);
proto_tree_add_item(ppcap_tree1, hf_ppcap_address_type, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
if (key1 == 1)
{
proto_tree_add_item(ppcap_tree1, hf_ppcap_ssn, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
proto_tree_add_item(ppcap_tree1, hf_ppcap_spc, tvb, offset, 3, ENC_BIG_ENDIAN);
/*src_addr1 = (guint32 )tvb_get_ntoh24(tvb, offset);*/
mtp3_addr_opc = ep_alloc0(sizeof(mtp3_addr_pc_t));
mtp3_addr_opc->pc = (guint32 )tvb_get_ntoh24(tvb, offset);
mtp3_addr_opc->type = 1; /* ITU_STANDARD */
mtp3_addr_opc->ni = 0;
/*SET_ADDRESS(&pinfo->net_src, AT_SS7PC, sizeof(mtp3_addr_pc_t), (guint8 *) mtp3_addr_opc);*/
SET_ADDRESS(&pinfo->src, AT_SS7PC, sizeof(mtp3_addr_pc_t), (guint8 *) mtp3_addr_opc);
if (msg_len%4)
msg_len = msg_len + (4 - (msg_len%4));
offset += msg_len-1;
return offset;
}
else if (key1 == 2)
{
proto_tree_add_item(ppcap_tree1, hf_ppcap_opc, tvb, offset, msg_len, ENC_BIG_ENDIAN);
/*src_addr1 = (guint32 )tvb_get_ntoh24(tvb, offset);*/
mtp3_addr_opc = ep_alloc0(sizeof(mtp3_addr_pc_t));
mtp3_addr_opc->pc = tvb_get_ntohl(tvb, offset);
mtp3_addr_opc->type = 1; /* ITU_STANDARD */
mtp3_addr_opc->ni = 0;
SET_ADDRESS(&pinfo->src, AT_SS7PC, sizeof(mtp3_addr_pc_t), (guint8 *) mtp3_addr_opc);
/*src_addr = tvb_get_ptr(tvb, offset, 4);*/
/*SET_ADDRESS(&pinfo->net_src, AT_SS7PC, 4, src_addr);*/
/*SET_ADDRESS(&pinfo->src, AT_SS7PC, 4, src_addr);*/
}
else if (key1 == 3)
{
if (msg_len%4 == 0)
{
proto_tree_add_ipv4(ppcap_tree1, hf_ppcap_source_ip_address1, tvb, offset, msg_len, tvb_get_ipv4(tvb, offset));
src_addr = tvb_get_ptr(tvb, offset, 4);
SET_ADDRESS(&pinfo->net_src, AT_IPv4, 4, src_addr);
SET_ADDRESS(&pinfo->src, AT_IPv4, 4, src_addr);
}
else
{
struct e_in6_addr value;
tvb_get_ipv6(tvb, offset, &value);
proto_tree_add_ipv6(ppcap_tree1, hf_ppcap_source_ip_address2, tvb, offset, msg_len, (guint8*)&value);
src_addr = tvb_get_ptr(tvb, offset, 6);
SET_ADDRESS(&pinfo->net_src, AT_IPv6, 6, src_addr);
SET_ADDRESS(&pinfo->src, AT_IPv6, 6, src_addr);
}
}
else if (key1 == 4)
{
proto_tree_add_item(ppcap_tree1, hf_ppcap_source_nodeid, tvb, offset, msg_len, ENC_BIG_ENDIAN|ENC_ASCII);
src_addr = tvb_get_ptr(tvb, offset, msg_len);
SET_ADDRESS(&pinfo->net_src, AT_STRINGZ, msg_len, src_addr);
SET_ADDRESS(&pinfo->src, AT_STRINGZ, msg_len, src_addr);
}
if (msg_len%4)
msg_len = msg_len + (4 - (msg_len%4));
offset += msg_len;
return offset;
}
static void dissect_bat_batman_v5(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
{
struct batman_packet_v5 *batman_packeth;
const guint8 *old_orig_addr, *orig_addr;
guint32 old_orig, orig;
gint i;
tvbuff_t *next_tvb;
guint length_remaining;
int offset = 0;
batman_packeth = ep_alloc(sizeof(struct batman_packet_v5));
batman_packeth->version = tvb_get_guint8(tvb, 0);
batman_packeth->flags = tvb_get_guint8(tvb, 1);
batman_packeth->ttl = tvb_get_guint8(tvb, 2);
batman_packeth->gwflags = tvb_get_guint8(tvb, 3);
batman_packeth->seqno = tvb_get_ntohs(tvb, 4);
batman_packeth->gwport = tvb_get_ntohs(tvb, 6);
orig_addr = tvb_get_ptr(tvb, 8, 4);
orig = tvb_get_ipv4(tvb, 8);
SET_ADDRESS(&batman_packeth->orig, AT_IPv4, 4, orig_addr);
old_orig_addr = tvb_get_ptr(tvb, 12, 4);
old_orig = tvb_get_ipv4(tvb, 12);
SET_ADDRESS(&batman_packeth->old_orig, AT_IPv4, 4, old_orig_addr);
batman_packeth->tq = tvb_get_guint8(tvb, 16);
batman_packeth->hna_len = tvb_get_guint8(tvb, 17);
/* Set info column */
if (check_col(pinfo->cinfo, COL_INFO))
col_add_fstr(pinfo->cinfo, COL_INFO, "Seq=%u", batman_packeth->seqno);
/* Set tree info */
if (tree) {
proto_item *ti = NULL, *tf, *tgw;
proto_tree *bat_batman_tree = NULL, *flag_tree = NULL;
if (PTREE_DATA(tree)->visible) {
ti = proto_tree_add_protocol_format(tree, proto_bat_plugin, tvb, 0, BATMAN_PACKET_V5_SIZE,
"B.A.T.M.A.N., Orig: %s (%s)",
get_hostname(orig), ip_to_str(batman_packeth->orig.data));
} else {
ti = proto_tree_add_item(tree, proto_bat_plugin, tvb, 0, BATMAN_PACKET_V5_SIZE, FALSE);
}
bat_batman_tree = proto_item_add_subtree(ti, ett_bat_batman);
/* items */
proto_tree_add_item(bat_batman_tree, hf_bat_batman_version, tvb, offset, 1, FALSE);
offset += 1;
tf = proto_tree_add_item(bat_batman_tree, hf_bat_batman_flags, tvb, offset, 1, FALSE);
/* <flags> */
flag_tree = proto_item_add_subtree(tf, ett_bat_batman_flags);
proto_tree_add_boolean(flag_tree, hf_bat_batman_flags_unidirectional, tvb, offset, 1, batman_packeth->flags);
proto_tree_add_boolean(flag_tree, hf_bat_batman_flags_directlink, tvb, offset, 1, batman_packeth->flags);
/* </flags> */
offset += 1;
proto_tree_add_item(bat_batman_tree, hf_bat_batman_ttl, tvb, offset, 1, FALSE);
offset += 1;
tgw = proto_tree_add_item(bat_batman_tree, hf_bat_batman_gwflags, tvb, offset, 1, FALSE);
dissect_bat_gwflags(tvb, batman_packeth->gwflags, offset, tgw);
offset += 1;
proto_tree_add_item(bat_batman_tree, hf_bat_batman_seqno, tvb, offset, 2, FALSE);
offset += 2;
proto_tree_add_item(bat_batman_tree, hf_bat_batman_gwport, tvb, offset, 2, FALSE);
offset += 2;
proto_tree_add_ipv4(bat_batman_tree, hf_bat_batman_orig, tvb, offset, 4, orig);
offset += 4;
proto_tree_add_ipv4(bat_batman_tree, hf_bat_batman_old_orig, tvb, offset, 4, old_orig);
offset += 4;
proto_tree_add_item(bat_batman_tree, hf_bat_batman_tq, tvb, offset, 1, FALSE);
offset += 1;
proto_tree_add_item(bat_batman_tree, hf_bat_batman_hna_len, tvb, offset, 1, FALSE);
offset += 1;
tap_queue_packet(bat_tap, pinfo, batman_packeth);
for (i = 0; i < batman_packeth->hna_len; i++) {
next_tvb = tvb_new_subset(tvb, offset, 5, 5);
if (have_tap_listener(bat_follow_tap)) {
tap_queue_packet(bat_follow_tap, pinfo, next_tvb);
}
dissect_bat_hna(next_tvb, pinfo, bat_batman_tree);
offset += 5;
}
}
length_remaining = tvb_reported_length_remaining(tvb, offset);
if (length_remaining != 0) {
next_tvb = tvb_new_subset_remaining(tvb, offset);
if (have_tap_listener(bat_follow_tap)) {
tap_queue_packet(bat_follow_tap, pinfo, next_tvb);
}
dissect_bat_batman(next_tvb, pinfo, tree);
}
}
static void
dissect_aodv_rrep(tvbuff_t *tvb, packet_info *pinfo, proto_tree *aodv_tree,
proto_item *ti, gboolean is_ipv6)
{
int offset = 1;
proto_item *tj;
proto_tree *aodv_flags_tree;
guint8 flags;
guint8 prefix_sz;
guint8 hop_count;
guint32 dest_addr_v4;
struct e_in6_addr dest_addr_v6;
guint32 dest_seqno;
guint32 orig_addr_v4;
struct e_in6_addr orig_addr_v6;
guint32 lifetime;
int extlen;
flags = tvb_get_guint8(tvb, offset);
if (aodv_tree) {
tj = proto_tree_add_text(aodv_tree, tvb, offset, 1, "Flags:");
aodv_flags_tree = proto_item_add_subtree(tj, ett_aodv_flags);
proto_tree_add_boolean(aodv_flags_tree, hf_aodv_flags_rrep_repair,
tvb, offset, 1, flags);
proto_tree_add_boolean(aodv_flags_tree, hf_aodv_flags_rrep_ack, tvb,
offset, 1, flags);
if (flags & RREP_REP)
proto_item_append_text(tj, " R");
if (flags & RREP_ACK_REQ)
proto_item_append_text(tj, " A");
}
offset += 1;
prefix_sz = tvb_get_guint8(tvb, offset) & 0x1F;
if (aodv_tree)
proto_tree_add_uint(aodv_tree, hf_aodv_prefix_sz, tvb, offset, 1,
prefix_sz);
offset += 1;
hop_count = tvb_get_guint8(tvb, offset);
if (aodv_tree)
proto_tree_add_uint(aodv_tree, hf_aodv_hopcount, tvb, offset, 1,
hop_count);
offset += 1;
if (is_ipv6) {
tvb_get_ipv6(tvb, offset, &dest_addr_v6);
if (aodv_tree) {
proto_tree_add_ipv6(aodv_tree, hf_aodv_dest_ipv6, tvb, offset,
INET6_ADDRLEN, (guint8 *)&dest_addr_v6);
proto_item_append_text(ti, ", Dest IP: %s",
ip6_to_str(&dest_addr_v6));
}
col_append_fstr(pinfo->cinfo, COL_INFO, ", D: %s",
ip6_to_str(&dest_addr_v6));
offset += INET6_ADDRLEN;
} else {
dest_addr_v4 = tvb_get_ipv4(tvb, offset);
if (aodv_tree) {
proto_tree_add_ipv4(aodv_tree, hf_aodv_dest_ip, tvb, offset, 4,
dest_addr_v4);
proto_item_append_text(ti, ", Dest IP: %s",
ip_to_str((guint8 *)&dest_addr_v4));
}
col_append_fstr(pinfo->cinfo, COL_INFO, ", D: %s",
ip_to_str((guint8 *)&dest_addr_v4));
offset += 4;
}
dest_seqno = tvb_get_ntohl(tvb, offset);
if (aodv_tree)
proto_tree_add_uint(aodv_tree, hf_aodv_dest_seqno, tvb, offset, 4,
dest_seqno);
offset += 4;
if (is_ipv6) {
tvb_get_ipv6(tvb, offset, &orig_addr_v6);
if (aodv_tree) {
proto_tree_add_ipv6(aodv_tree, hf_aodv_orig_ipv6, tvb, offset,
INET6_ADDRLEN, (guint8 *)&orig_addr_v6);
proto_item_append_text(ti, ", Orig IP: %s",
ip6_to_str(&orig_addr_v6));
}
col_append_fstr(pinfo->cinfo, COL_INFO, ", O: %s",
ip6_to_str(&orig_addr_v6));
offset += INET6_ADDRLEN;
} else {
orig_addr_v4 = tvb_get_ipv4(tvb, offset);
if (aodv_tree) {
proto_tree_add_ipv4(aodv_tree, hf_aodv_orig_ip, tvb, offset, 4,
orig_addr_v4);
proto_item_append_text(ti, ", Orig IP: %s",
ip_to_str((guint8 *)&orig_addr_v4));
}
col_append_fstr(pinfo->cinfo, COL_INFO, ", O: %s",
ip_to_str((guint8 *)&orig_addr_v4));
offset += 4;
}
lifetime = tvb_get_ntohl(tvb, offset);
if (aodv_tree) {
proto_tree_add_uint(aodv_tree, hf_aodv_lifetime, tvb, offset, 4,
lifetime);
proto_item_append_text(ti, ", Lifetime=%u", lifetime);
}
col_append_fstr(pinfo->cinfo, COL_INFO, " Hcnt=%u DSN=%u Lifetime=%u",
hop_count,
dest_seqno,
lifetime);
offset += 4;
if (aodv_tree) {
extlen = tvb_reported_length_remaining(tvb, offset);
if (extlen > 0)
dissect_aodv_ext(tvb, offset, aodv_tree);
}
}
static int dissect_pbb_addressblock(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, guint offset, guint maxoffset,
guint8 addressType, guint8 addressSize) {
guint8 addr[MAX_ADDR_SIZE];
guint8 numAddr;
guint8 address_flags;
guint8 head_length = 0, tail_length = 0;
guint block_length = 0, midSize = 0;
guint block_index = 0, head_index = 0, tail_index = 0, mid_index = 0, prefix_index = 0;
proto_tree *addr_tree = NULL;
proto_tree *addrFlags_tree = NULL;
proto_tree *addrValue_tree = NULL;
proto_item *addr_item = NULL;
proto_item *addrFlags_item = NULL;
proto_item *addrValue_item = NULL;
int i = 0;
if (maxoffset - offset < 2) {
proto_tree_add_expert_format(tree, pinfo, &ei_packetbb_error, tvb, offset, maxoffset - offset,
"Not enough octets for minimal addressblock header");
return tvb_reported_length(tvb);
}
DISSECTOR_ASSERT(addressSize <= MAX_ADDR_SIZE);
memset(addr, 0, addressSize);
block_length = 2;
block_index = offset;
midSize = addressSize;
numAddr = tvb_get_guint8(tvb, offset++);
address_flags = tvb_get_guint8(tvb, offset++);
if ((address_flags & ADDR_HASHEAD) != 0) {
head_index = offset;
if (maxoffset - offset <= 0) {
proto_tree_add_expert_format(tree, pinfo, &ei_packetbb_error, tvb, offset, maxoffset - offset,
"Not enough octets for addressblock head");
return tvb_reported_length(tvb);
}
head_length = tvb_get_guint8(tvb, offset++);
if (head_length > addressSize-1) {
proto_tree_add_expert_format(tree, pinfo, &ei_packetbb_error, tvb, offset, maxoffset - offset,
"address head length is too long");
return tvb_reported_length(tvb);
}
if (maxoffset - offset < head_length) {
proto_tree_add_expert_format(tree, pinfo, &ei_packetbb_error, tvb, offset, maxoffset - offset,
"Not enough octets for addressblock head");
return tvb_reported_length(tvb);
}
tvb_memcpy(tvb, addr, offset, head_length);
midSize -= head_length;
block_length += (head_length+1);
offset += head_length;
}
if ((address_flags & ADDR_HASZEROTAIL) != 0) {
tail_index = offset;
if (maxoffset - offset <= 0) {
proto_tree_add_expert_format(tree, pinfo, &ei_packetbb_error, tvb, offset, maxoffset - offset,
"Not enough octets for addressblock tail");
return tvb_reported_length(tvb);
}
tail_length = tvb_get_guint8(tvb, offset++);
if (tail_length > addressSize-1-head_length) {
proto_tree_add_expert_format(tree, pinfo, &ei_packetbb_error, tvb, offset, maxoffset - offset,
"address tail length is too long");
return tvb_reported_length(tvb);
}
midSize -= tail_length;
block_length++;
}
else if ((address_flags & ADDR_HASFULLTAIL) != 0) {
tail_index = offset;
if (maxoffset - offset <= 0) {
proto_tree_add_expert_format(tree, pinfo, &ei_packetbb_error, tvb, offset, maxoffset - offset,
"Not enough octets for addressblock tail");
return tvb_reported_length(tvb);
}
tail_length = tvb_get_guint8(tvb, offset++);
if (tail_length > addressSize-1-head_length) {
proto_tree_add_expert_format(tree, pinfo, &ei_packetbb_error, tvb, offset, maxoffset - offset,
"address tail length is too long");
return tvb_reported_length(tvb);
}
if (maxoffset - offset < tail_length) {
proto_tree_add_expert_format(tree, pinfo, &ei_packetbb_error, tvb, offset, maxoffset - offset,
"Not enough octets for addressblock tail");
return tvb_reported_length(tvb);
}
tvb_memcpy(tvb, &addr[addressSize - tail_length], offset, tail_length);
midSize -= tail_length;
block_length += (tail_length+1);
offset += tail_length;
}
mid_index = offset;
block_length += numAddr * midSize;
offset += numAddr * midSize;
if ((address_flags & ADDR_HASSINGLEPRELEN) != 0) {
prefix_index = offset;
block_length++;
}
else if ((address_flags & ADDR_HASMULTIPRELEN) != 0) {
prefix_index = offset;
block_length += numAddr;
}
if (maxoffset < block_index + block_length) {
proto_tree_add_expert_format(tree, pinfo, &ei_packetbb_error, tvb, offset, maxoffset - offset,
"Not enough octets for address block");
return maxoffset;
}
/* add address tree */
addr_item = proto_tree_add_item(tree, hf_packetbb_addr, tvb, block_index, block_length, ENC_NA);
addr_tree = proto_item_add_subtree(addr_item, ett_packetbb_addr);
proto_item_append_text(addr_item, " (%d addresses)", numAddr);
/* add num-addr */
proto_tree_add_item(addr_tree, hf_packetbb_addr_num, tvb, block_index, 1, ENC_BIG_ENDIAN);
/* add flags */
addrFlags_item = proto_tree_add_item(addr_tree, hf_packetbb_addr_flags, tvb, block_index+1, 1, ENC_BIG_ENDIAN);
addrFlags_tree = proto_item_add_subtree(addrFlags_item, ett_packetbb_addr_flags);
proto_tree_add_item(addrFlags_tree, hf_packetbb_addr_flags_hashead, tvb, block_index+1, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(addrFlags_tree, hf_packetbb_addr_flags_hasfulltail, tvb, block_index+1, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(addrFlags_tree, hf_packetbb_addr_flags_haszerotail, tvb, block_index+1, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(addrFlags_tree, hf_packetbb_addr_flags_hassingleprelen, tvb, block_index+1, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(addrFlags_tree, hf_packetbb_addr_flags_hasmultiprelen, tvb, block_index+1, 1, ENC_BIG_ENDIAN);
if ((address_flags & ADDR_HASHEAD) != 0) {
/* add head */
proto_tree_add_item(addr_tree, hf_packetbb_addr_head, tvb, head_index, head_length+1, ENC_NA);
}
if ((address_flags & ADDR_HASFULLTAIL) != 0) {
/* add full tail */
proto_tree_add_item(addr_tree, hf_packetbb_addr_tail, tvb, tail_index, tail_length+1, ENC_NA);
}
else if ((address_flags & ADDR_HASZEROTAIL) != 0) {
/* add zero tail */
proto_tree_add_item(addr_tree, hf_packetbb_addr_tail, tvb, tail_index, 1, ENC_NA);
}
for (i=0; i<numAddr; i++) {
guint32 ipv4 = 0;
guint8 prefix = addressSize * 8;
tvb_memcpy(tvb, &addr[head_length], mid_index + midSize*i, midSize);
ipv4 = (addr[3] << 24) + (addr[2] << 16) + (addr[1] << 8) + addr[0];
switch (addressType) {
case 0:
addrValue_item = proto_tree_add_ipv4(addr_tree, hf_packetbb_addr_value[addressType],
tvb, mid_index, block_index + block_length - mid_index, ipv4);
break;
case 1:
addrValue_item = proto_tree_add_ipv6(addr_tree, hf_packetbb_addr_value[addressType],
tvb, mid_index, block_index + block_length - mid_index, (struct e_in6_addr *)addr);
break;
case 2:
addrValue_item = proto_tree_add_ether(addr_tree, hf_packetbb_addr_value[addressType],
tvb, mid_index, block_index + block_length - mid_index, addr);
break;
case 3:
addrValue_item = proto_tree_add_bytes(addr_tree, hf_packetbb_addr_value[addressType],
tvb, mid_index, block_index + block_length - mid_index, addr);
break;
default:
break;
}
addrValue_tree = proto_item_add_subtree(addrValue_item, ett_packetbb_addr_value);
proto_tree_add_item(addrValue_tree, hf_packetbb_addr_value_mid, tvb,
mid_index + midSize*i, midSize, ENC_NA);
if ((address_flags & ADDR_HASSINGLEPRELEN) != 0) {
prefix = tvb_get_guint8(tvb, prefix_index);
proto_tree_add_item(addrValue_tree, hf_packetbb_addr_value_prefix, tvb, prefix_index, 1, ENC_BIG_ENDIAN);
}
else if ((address_flags & ADDR_HASMULTIPRELEN) != 0) {
prefix = tvb_get_guint8(tvb, prefix_index + i);
proto_tree_add_item(addrValue_tree, hf_packetbb_addr_value_prefix, tvb, prefix_index + i, 1, ENC_BIG_ENDIAN);
}
proto_item_append_text(addrValue_item, "/%d", prefix);
}
offset = dissect_pbb_tlvblock(tvb, pinfo, addr_tree, block_index + block_length, maxoffset, numAddr);
return offset;
}
static int dissect_bat_batman_v5(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree)
{
proto_item *tf, *tgw;
proto_tree *bat_batman_tree = NULL, *flag_tree;
struct batman_packet_v5 *batman_packeth;
const guint8 *old_orig_addr, *orig_addr;
guint32 old_orig, orig;
gint i;
tvbuff_t *next_tvb;
batman_packeth = wmem_new(wmem_packet_scope(), struct batman_packet_v5);
batman_packeth->version = tvb_get_guint8(tvb, offset+0);
batman_packeth->flags = tvb_get_guint8(tvb, offset+1);
batman_packeth->ttl = tvb_get_guint8(tvb, offset+2);
batman_packeth->gwflags = tvb_get_guint8(tvb, offset+3);
batman_packeth->seqno = tvb_get_ntohs(tvb, offset+4);
batman_packeth->gwport = tvb_get_ntohs(tvb, offset+6);
orig_addr = tvb_get_ptr(tvb, offset+8, 4);
orig = tvb_get_ipv4(tvb, offset+8);
SET_ADDRESS(&batman_packeth->orig, AT_IPv4, 4, orig_addr);
old_orig_addr = tvb_get_ptr(tvb, offset+12, 4);
old_orig = tvb_get_ipv4(tvb, offset+12);
SET_ADDRESS(&batman_packeth->old_orig, AT_IPv4, 4, old_orig_addr);
batman_packeth->tq = tvb_get_guint8(tvb, offset+16);
batman_packeth->hna_len = tvb_get_guint8(tvb, offset+17);
/* Set info column */
col_add_fstr(pinfo->cinfo, COL_INFO, "Seq=%u", batman_packeth->seqno);
/* Set tree info */
if (tree) {
proto_item *ti;
if (PTREE_DATA(tree)->visible) {
ti = proto_tree_add_protocol_format(tree, proto_bat_plugin, tvb, offset, BATMAN_PACKET_V5_SIZE,
"B.A.T.M.A.N., Orig: %s (%s)",
get_hostname(orig), ip_to_str((const guint8 *)batman_packeth->orig.data));
} else {
ti = proto_tree_add_item(tree, proto_bat_plugin, tvb, offset, BATMAN_PACKET_V5_SIZE, ENC_NA);
}
bat_batman_tree = proto_item_add_subtree(ti, ett_bat_batman);
}
/* items */
proto_tree_add_item(bat_batman_tree, hf_bat_batman_version, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
tf = proto_tree_add_item(bat_batman_tree, hf_bat_batman_flags, tvb, offset, 1, ENC_BIG_ENDIAN);
/* <flags> */
flag_tree = proto_item_add_subtree(tf, ett_bat_batman_flags);
proto_tree_add_boolean(flag_tree, hf_bat_batman_flags_unidirectional, tvb, offset, 1, batman_packeth->flags);
proto_tree_add_boolean(flag_tree, hf_bat_batman_flags_directlink, tvb, offset, 1, batman_packeth->flags);
/* </flags> */
offset += 1;
proto_tree_add_item(bat_batman_tree, hf_bat_batman_ttl, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
tgw = proto_tree_add_item(bat_batman_tree, hf_bat_batman_gwflags, tvb, offset, 1, ENC_BIG_ENDIAN);
dissect_bat_gwflags(tvb, batman_packeth->gwflags, offset, tgw);
offset += 1;
proto_tree_add_item(bat_batman_tree, hf_bat_batman_seqno, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
proto_tree_add_item(bat_batman_tree, hf_bat_batman_gwport, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
proto_tree_add_ipv4(bat_batman_tree, hf_bat_batman_orig, tvb, offset, 4, orig);
offset += 4;
proto_tree_add_ipv4(bat_batman_tree, hf_bat_batman_old_orig, tvb, offset, 4, old_orig);
offset += 4;
proto_tree_add_item(bat_batman_tree, hf_bat_batman_tq, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
proto_tree_add_item(bat_batman_tree, hf_bat_batman_hna_len, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
tap_queue_packet(bat_tap, pinfo, batman_packeth);
for (i = 0; i < batman_packeth->hna_len; i++) {
next_tvb = tvb_new_subset(tvb, offset, 5, 5);
if (have_tap_listener(bat_follow_tap)) {
tap_queue_packet(bat_follow_tap, pinfo, next_tvb);
}
dissect_bat_hna(next_tvb, pinfo, bat_batman_tree);
offset += 5;
}
return offset;
}
static int
dissect_ppcap_destination_address(tvbuff_t *tvb, packet_info * pinfo, proto_tree * ppcap_tree1, int offset, guint16 msg_len )
{
int key2;
const guchar *dst_addr;
/*guint32 dst_addr1;*/
proto_tree_add_item(ppcap_tree1, hf_ppcap_destreserved, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
key2 = tvb_get_ntohs(tvb, offset);
proto_tree_add_item(ppcap_tree1, hf_ppcap_address_type, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
if (key2 == 1)
{
ssn = tvb_get_guint8(tvb, offset);
proto_tree_add_item(ppcap_tree1, hf_ppcap_ssn1, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
proto_tree_add_item(ppcap_tree1, hf_ppcap_spc1, tvb, offset, 3, ENC_BIG_ENDIAN);
/*dst_addr1 = (guint32 )tvb_get_ntoh24(tvb, offset);*/
mtp3_addr_dpc = ep_alloc0(sizeof(mtp3_addr_pc_t));
mtp3_addr_dpc->pc = (guint32)tvb_get_ntoh24(tvb, offset);
mtp3_addr_dpc->type = 1; /* ITU_STANDARD */
mtp3_addr_dpc->ni = 0;
SET_ADDRESS(&pinfo->dst, AT_SS7PC, sizeof(mtp3_addr_pc_t), (guint8 *) mtp3_addr_dpc);
/*dst_addr = tvb_get_ptr(tvb, offset, msg_len-1);
SET_ADDRESS(&pinfo->net_dst, AT_SS7PC, msg_len-1, dst_addr);
SET_ADDRESS(&pinfo->dst, AT_SS7PC, msg_len-1, dst_addr);*/
if (msg_len%4)
msg_len = msg_len + (4 - (msg_len%4));
offset += msg_len-1;
return offset;
}
else if (key2 == 2)
{
proto_tree_add_item(ppcap_tree1, hf_ppcap_dpc, tvb, offset, 4, ENC_BIG_ENDIAN);
/*dst_addr1 = (guint32 )tvb_get_ntoh24(tvb, offset);*/
mtp3_addr_dpc = ep_alloc0(sizeof(mtp3_addr_pc_t));
mtp3_addr_dpc->pc = tvb_get_ntohl(tvb, offset);
mtp3_addr_dpc->type = 1; /* ITU_STANDARD */
mtp3_addr_dpc->ni = 0;
SET_ADDRESS(&pinfo->dst, AT_SS7PC, sizeof(mtp3_addr_pc_t), (guint8 *) mtp3_addr_dpc);
}
else if (key2 == 3)
{
if (msg_len%4 == 0)
{
proto_tree_add_ipv4(ppcap_tree1, hf_ppcap_destination_ip_address1, tvb, offset, msg_len, tvb_get_ipv4(tvb, offset));
dst_addr = tvb_get_ptr(tvb, offset, 4);
SET_ADDRESS(&pinfo->net_dst, AT_IPv4, 4, dst_addr);
SET_ADDRESS(&pinfo->dst, AT_IPv4, 4, dst_addr);
}
else
{
struct e_in6_addr value;
tvb_get_ipv6(tvb, offset,&value);
proto_tree_add_ipv6(ppcap_tree1, hf_ppcap_destination_ip_address2, tvb, offset, msg_len, (guint8*)&value);
dst_addr = tvb_get_ptr(tvb, offset, 6);
SET_ADDRESS(&pinfo->net_dst, AT_IPv6, 6, dst_addr);
SET_ADDRESS(&pinfo->dst, AT_IPv6, 6, dst_addr);
}
}
else if (key2 == 4)
{
char *string;
string = tvb_get_string(tvb, offset, msg_len);
proto_tree_add_string(ppcap_tree1, hf_ppcap_destination_nodeid, tvb, offset, msg_len, string);
dst_addr = tvb_get_ptr(tvb, offset, msg_len);
SET_ADDRESS(&pinfo->net_dst, AT_STRINGZ, msg_len, dst_addr);
SET_ADDRESS(&pinfo->dst, AT_STRINGZ, msg_len, dst_addr);
/*g_free(string);*/
}
if (msg_len%4)
msg_len = msg_len+(4-(msg_len%4));
offset += msg_len;
return offset;
}
static void
dissect_ftp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
{
gboolean is_request;
proto_tree *ftp_tree = NULL;
proto_tree *reqresp_tree = NULL;
proto_item *ti, *hidden_item;
gint offset = 0;
const guchar *line;
guint32 code;
gchar code_str[4];
gboolean is_port_request = FALSE;
gboolean is_pasv_response = FALSE;
gboolean is_epasv_response = FALSE;
gint next_offset;
int linelen;
int tokenlen;
const guchar *next_token;
guint32 pasv_ip;
guint32 ftp_ip;
guint16 ftp_port;
address ftp_ip_address;
gboolean ftp_nat;
conversation_t *conversation;
ftp_ip_address = pinfo->src;
if (pinfo->match_uint == pinfo->destport)
is_request = TRUE;
else
is_request = FALSE;
col_set_str(pinfo->cinfo, COL_PROTOCOL, "FTP");
/*
* Find the end of the first line.
*
* Note that "tvb_find_line_end()" will return a value that is
* not longer than what's in the buffer, so the "tvb_get_ptr()"
* call won't throw an exception.
*/
linelen = tvb_find_line_end(tvb, offset, -1, &next_offset, FALSE);
line = tvb_get_ptr(tvb, offset, linelen);
/*
* Put the first line from the buffer into the summary
* (but leave out the line terminator).
*/
col_add_fstr(pinfo->cinfo, COL_INFO, "%s: %s",
is_request ? "Request" : "Response",
format_text(line, linelen));
if (tree) {
ti = proto_tree_add_item(tree, proto_ftp, tvb, offset, -1, ENC_NA);
ftp_tree = proto_item_add_subtree(ti, ett_ftp);
if (is_request) {
hidden_item = proto_tree_add_boolean(ftp_tree,
hf_ftp_request, tvb, 0, 0, TRUE);
PROTO_ITEM_SET_HIDDEN(hidden_item);
hidden_item = proto_tree_add_boolean(ftp_tree,
hf_ftp_response, tvb, 0, 0, FALSE);
PROTO_ITEM_SET_HIDDEN(hidden_item);
} else {
hidden_item = proto_tree_add_boolean(ftp_tree,
hf_ftp_request, tvb, 0, 0, FALSE);
PROTO_ITEM_SET_HIDDEN(hidden_item);
hidden_item = proto_tree_add_boolean(ftp_tree,
hf_ftp_response, tvb, 0, 0, TRUE);
PROTO_ITEM_SET_HIDDEN(hidden_item);
}
/*
* Put the line into the protocol tree.
*/
ti = proto_tree_add_text(ftp_tree, tvb, offset,
next_offset - offset, "%s",
tvb_format_text(tvb, offset, next_offset - offset));
reqresp_tree = proto_item_add_subtree(ti, ett_ftp_reqresp);
}
if (is_request) {
/*
* Extract the first token, and, if there is a first
* token, add it as the request.
*/
tokenlen = get_token_len(line, line + linelen, &next_token);
if (tokenlen != 0) {
if (tree) {
proto_tree_add_item(reqresp_tree,
hf_ftp_request_command, tvb, offset,
tokenlen, ENC_ASCII|ENC_NA);
}
if (strncmp(line, "PORT", tokenlen) == 0)
is_port_request = TRUE;
}
} else {
/*
* This is a response; the response code is 3 digits,
* followed by a space or hyphen, possibly followed by
* text.
*
* If the line doesn't start with 3 digits, it's part of
* a continuation.
*
* XXX - keep track of state in the first pass, and
* treat non-continuation lines not beginning with digits
* as errors?
*/
if (linelen >= 3 && isdigit(line[0]) && isdigit(line[1])
&& isdigit(line[2])) {
/*
* One-line reply, or first or last line
* of a multi-line reply.
*/
tvb_get_nstringz0(tvb, offset, sizeof(code_str), code_str);
code = strtoul(code_str, NULL, 10);
if (tree) {
proto_tree_add_uint(reqresp_tree,
hf_ftp_response_code, tvb, offset, 3, code);
}
/*
* See if it's a passive-mode response.
*
* XXX - does anybody do FOOBAR, as per RFC
* 1639, or has that been supplanted by RFC 2428?
*/
if (code == 227)
is_pasv_response = TRUE;
/*
* Responses to EPSV command, as per RFC 2428
* XXX - handle IPv6?
*/
if (code == 229)
is_epasv_response = TRUE;
/*
* Skip the 3 digits and, if present, the
* space or hyphen.
*/
if (linelen >= 4)
next_token = line + 4;
else
next_token = line + linelen;
} else {
/*
* Line doesn't start with 3 digits; assume it's
* a line in the middle of a multi-line reply.
*/
next_token = line;
}
}
offset += (gint) (next_token - line);
linelen -= (int) (next_token - line);
line = next_token;
if (tree) {
/*
* Add the rest of the first line as request or
* reply data.
*/
if (linelen != 0) {
if (is_request) {
proto_tree_add_item(reqresp_tree,
hf_ftp_request_arg, tvb, offset,
linelen, ENC_ASCII|ENC_NA);
} else {
proto_tree_add_item(reqresp_tree,
hf_ftp_response_arg, tvb, offset,
linelen, ENC_ASCII|ENC_NA);
}
}
offset = next_offset;
}
/*
* If this is a PORT request or a PASV response, handle it.
*/
if (is_port_request) {
if (parse_port_pasv(line, linelen, &ftp_ip, &ftp_port)) {
if (tree) {
proto_tree_add_ipv4(reqresp_tree,
hf_ftp_active_ip, tvb, 0, 0,
ftp_ip);
proto_tree_add_uint(reqresp_tree,
hf_ftp_active_port, tvb, 0, 0,
ftp_port);
}
SET_ADDRESS(&ftp_ip_address, AT_IPv4, 4, (const guint8 *)&ftp_ip);
ftp_nat = !ADDRESSES_EQUAL(&pinfo->src, &ftp_ip_address);
if (ftp_nat) {
if (tree) {
proto_tree_add_boolean(
reqresp_tree,
hf_ftp_active_nat, tvb,
0, 0, ftp_nat);
}
}
}
}
if (is_pasv_response) {
if (linelen != 0) {
/*
* This frame contains a PASV response; set up a
* conversation for the data.
*/
if (parse_port_pasv(line, linelen, &pasv_ip, &ftp_port)) {
if (tree) {
proto_tree_add_ipv4(reqresp_tree,
hf_ftp_pasv_ip, tvb, 0, 0, pasv_ip);
proto_tree_add_uint(reqresp_tree,
hf_ftp_pasv_port, tvb, 0, 0,
ftp_port);
}
SET_ADDRESS(&ftp_ip_address, AT_IPv4, 4,
(const guint8 *)&pasv_ip);
ftp_nat = !ADDRESSES_EQUAL(&pinfo->src, &ftp_ip_address);
if (ftp_nat) {
if (tree) {
proto_tree_add_boolean(reqresp_tree,
hf_ftp_pasv_nat, tvb, 0, 0,
ftp_nat);
}
}
/*
* We use "ftp_ip_address", so that if
* we're NAT'd we look for the un-NAT'd
* connection.
*
* XXX - should this call to
* "find_conversation()" just use
* "ftp_ip_address" and "server_port", and
* wildcard everything else?
*/
conversation = find_conversation(pinfo->fd->num, &ftp_ip_address,
&pinfo->dst, PT_TCP, ftp_port, 0,
NO_PORT_B);
if (conversation == NULL) {
/*
* XXX - should this call to "conversation_new()"
* just use "ftp_ip_address" and "server_port",
* and wildcard everything else?
*
* XXX - what if we did find a conversation? As
* we create it only on the first pass through the
* packets, if we find one, it's presumably an
* unrelated conversation. Should we remove the
* old one from the hash table and put this one in
* its place? Can the conversation code handle
* conversations not in the hash table? Or should
* we make conversations support start and end
* frames, as circuits do, and treat this as an
* indication that one conversation was closed and
* a new one was opened?
*/
conversation = conversation_new(
pinfo->fd->num, &ftp_ip_address, &pinfo->dst,
PT_TCP, ftp_port, 0, NO_PORT2);
conversation_set_dissector(conversation, ftpdata_handle);
}
}
}
}
if (is_epasv_response) {
if (linelen != 0) {
/*
* This frame contains an EPSV response; set up a
* conversation for the data.
*/
if (parse_extended_pasv_response(line, linelen, &ftp_port)) {
/* Add port number to tree */
if (tree) {
proto_tree_add_uint(reqresp_tree,
hf_ftp_pasv_port, tvb, 0, 0,
ftp_port);
}
/* Find/create conversation for data */
conversation = find_conversation(pinfo->fd->num, &pinfo->src,
&pinfo->dst, PT_TCP, ftp_port, 0,
NO_PORT_B);
if (conversation == NULL) {
conversation = conversation_new(
pinfo->fd->num, &pinfo->src, &pinfo->dst,
PT_TCP, ftp_port, 0, NO_PORT2);
conversation_set_dissector(conversation,
ftpdata_handle);
}
}
}
}
if (tree) {
/*
* Show the rest of the request or response as text,
* a line at a time.
* XXX - only if there's a continuation indicator?
*/
while (tvb_offset_exists(tvb, offset)) {
/*
* Find the end of the line.
*/
tvb_find_line_end(tvb, offset, -1, &next_offset, FALSE);
/*
* Put this line.
*/
proto_tree_add_text(ftp_tree, tvb, offset,
next_offset - offset, "%s",
tvb_format_text(tvb, offset, next_offset - offset));
offset = next_offset;
}
}
}
static int
dissect_v3_report(tvbuff_t *tvb, proto_tree *parent_tree, int offset)
{
guint8 m0,m1,m2,m3;
guint8 s0,s1,s2,s3;
guint8 metric;
guint32 ip;
while (tvb_reported_length_remaining(tvb, offset) > 0) {
proto_tree *tree;
proto_item *item;
int old_offset_a = offset;
item = proto_tree_add_item(parent_tree, hf_route,
tvb, offset, -1, ENC_NA);
tree = proto_item_add_subtree(item, ett_route);
m0 = 0xff;
/* read the mask */
m1 = tvb_get_guint8(tvb, offset);
m2 = tvb_get_guint8(tvb, offset+1);
m3 = tvb_get_guint8(tvb, offset+2);
ip = m3;
ip = (ip<<8)|m2;
ip = (ip<<8)|m1;
ip = (ip<<8)|m0;
proto_tree_add_ipv4(tree, hf_netmask, tvb, offset, 3, ip);
offset += 3;
/* read every srcnet, metric pairs */
do {
int old_offset_b = offset;
m0 = 0xff;
s1 = 0;
s2 = 0;
s3 = 0;
s0 = tvb_get_guint8(tvb, offset);
offset += 1;
if (m1) {
s1 = tvb_get_guint8(tvb, offset);
offset += 1;
}
if (m2) {
s2 = tvb_get_guint8(tvb, offset);
offset += 1;
}
if (m3) {
s3 = tvb_get_guint8(tvb, offset);
offset += 1;
}
/* handle special case for default route V3/3.4.3 */
if ((!m1)&&(!m2)&&(!m3)&&(!s0)) {
m0 = 0;
}
ip = s3;
ip = (ip<<8)|s2;
ip = (ip<<8)|s1;
ip = (ip<<8)|s0;
proto_tree_add_ipv4_format(tree, hf_saddr, tvb,
old_offset_b, offset-old_offset_b, ip,
"%s %d.%d.%d.%d (netmask %d.%d.%d.%d)",
m0?"Source Network":"Default Route",
s0,s1,s2,s3,m0,m1,m2,m3);
metric = tvb_get_guint8(tvb, offset);
proto_tree_add_uint(tree, hf_metric, tvb,
offset, 1, metric&0x7f);
offset += 1;
} while (!(metric&0x80));
proto_item_set_len(item, offset-old_offset_a);
}
return offset;
}
void dissect_cie_list(tvbuff_t *tvb,
packet_info *pinfo,
proto_tree *tree,
gint offset,
gint cieEnd,
e_nhrp_hdr *hdr,
gint isReq,
gboolean codeinfo)
{
proto_item *cli_addr_tree_item = NULL;
proto_tree *cli_addr_tree = NULL;
proto_item *cli_saddr_tree_item = NULL;
proto_tree *cli_saddr_tree = NULL;
guint8 val;
while ((offset + 12) <= cieEnd) {
guint cli_addr_len = tvb_get_guint8(tvb, offset + 8);
guint cli_saddr_len = tvb_get_guint8(tvb, offset + 9);
guint cli_prot_len = tvb_get_guint8(tvb, offset + 10);
guint cie_len = 12 + cli_addr_len + cli_saddr_len + cli_prot_len;
proto_item *cie_tree_item = proto_tree_add_text(tree, tvb, offset, cie_len, "Client Information Entry");
proto_tree *cie_tree = proto_item_add_subtree(cie_tree_item, ett_nhrp_cie);
if (isReq) {
proto_tree_add_item(cie_tree, hf_nhrp_code, tvb, offset, 1, FALSE);
}
else {
guint8 code = tvb_get_guint8(tvb, offset);
if ( codeinfo ) {
col_append_fstr(pinfo->cinfo, COL_INFO, ", Code=%s",
val_to_str(code, nhrp_cie_code_vals, "Unknown (%u)"));
}
proto_tree_add_text(cie_tree, tvb, offset, 1, "Code: %s",
val_to_str(code, nhrp_cie_code_vals, "Unknown (%u)"));
}
offset += 1;
proto_tree_add_item(cie_tree, hf_nhrp_prefix_len, tvb, offset, 1, FALSE);
offset += 1;
proto_tree_add_item(cie_tree, hf_nhrp_unused, tvb, offset, 2, FALSE);
offset += 2;
proto_tree_add_item(cie_tree, hf_nhrp_mtu, tvb, offset, 2, FALSE);
offset += 2;
proto_tree_add_item(cie_tree, hf_nhrp_holding_time, tvb, offset, 2, FALSE);
offset += 2;
val = tvb_get_guint8(tvb, offset);
cli_addr_tree_item = proto_tree_add_uint_format(cie_tree,
hf_nhrp_cli_addr_tl, tvb, offset, 1, val,
"Client Address Type/Len: %s/%u",
val_to_str(NHRP_SHTL_TYPE(val), nhrp_shtl_type_vals, "Unknown Type"),
NHRP_SHTL_LEN(val));
cli_addr_tree = proto_item_add_subtree(cli_addr_tree_item, ett_nhrp_cie_cli_addr_tl);
proto_tree_add_item(cli_addr_tree, hf_nhrp_cli_addr_tl_type, tvb, offset, 1, FALSE);
proto_tree_add_item(cli_addr_tree, hf_nhrp_cli_addr_tl_len, tvb, offset, 1, FALSE);
offset += 1;
val = tvb_get_guint8(tvb, offset);
cli_saddr_tree_item = proto_tree_add_uint_format(cie_tree,
hf_nhrp_cli_saddr_tl, tvb, offset, 1, val,
"Client Sub Address Type/Len: %s/%u",
val_to_str(NHRP_SHTL_TYPE(val), nhrp_shtl_type_vals, "Unknown Type"),
NHRP_SHTL_LEN(val));
cli_saddr_tree = proto_item_add_subtree(cli_saddr_tree_item, ett_nhrp_cie_cli_saddr_tl);
proto_tree_add_item(cli_saddr_tree, hf_nhrp_cli_saddr_tl_type, tvb, offset, 1, FALSE);
proto_tree_add_item(cli_saddr_tree, hf_nhrp_cli_saddr_tl_len, tvb, offset, 1, FALSE);
offset += 1;
proto_tree_add_item(cie_tree, hf_nhrp_cli_prot_len, tvb, offset, 1, FALSE);
offset += 1;
proto_tree_add_item(cie_tree, hf_nhrp_pref, tvb, offset, 1, FALSE);
offset += 1;
if (cli_addr_len) {
switch (hdr->ar_afn) {
case AFNUM_INET:
if (cli_addr_len == 4)
proto_tree_add_item(cie_tree, hf_nhrp_client_nbma_addr, tvb, offset, 4, FALSE);
else {
proto_tree_add_text(cie_tree, tvb, offset, cli_addr_len,
"Client NBMA Address: %s",
tvb_bytes_to_str(tvb, offset, cli_addr_len));
}
break;
default:
proto_tree_add_text(cie_tree, tvb, offset, cli_addr_len,
"Client NBMA Address: %s",
tvb_bytes_to_str(tvb, offset, cli_addr_len));
break;
}
offset += cli_addr_len;
}
if (cli_saddr_len) {
proto_tree_add_text(cie_tree, tvb, offset, cli_saddr_len,
"Client NBMA Sub Address: %s",
tvb_bytes_to_str(tvb, offset, cli_saddr_len));
}
if (cli_prot_len) {
if (cli_prot_len == 4)
proto_tree_add_ipv4(cie_tree, hf_nhrp_client_prot_addr, tvb, offset, 4, FALSE);
else {
proto_tree_add_text(cie_tree, tvb, offset, cli_prot_len,
"Client Protocol Address: %s",
tvb_bytes_to_str(tvb, offset, cli_prot_len));
}
offset += cli_prot_len;
}
}
}
