static void dissect_unregister_pdu(tvbuff_t *tvb, proto_tree *tree,int offset,int len, char flags)
{
proto_item* item;
proto_tree* subtree;
gboolean little_endian = !(flags & NETWORK_BYTE_ORDER);
item = proto_tree_add_text(tree, tvb, offset, len, "Unregister-PDU");
subtree = proto_item_add_subtree(item, ett_unregister);
if(flags & NON_DEFAULT_CONTEXT) {
/* show context */
offset += dissect_octet_string(tvb, subtree, offset, flags);
}
proto_tree_add_item(subtree, hf_unreg_timeout, tvb, offset, 1, FALSE);
proto_tree_add_item(subtree, hf_unreg_prio, tvb, offset+1, 1, FALSE);
proto_tree_add_item(subtree, hf_unreg_rsid, tvb, offset+2, 1, FALSE);
offset+=4;
/* Region */
offset += dissect_object_id(tvb, subtree, offset, flags);
if(len > offset) {
/* Upper bound (opt) */
proto_tree_add_item(subtree, hf_unreg_ubound, tvb, offset, 4, little_endian);
offset += 4;
}
}
static int
dissect_unregister_pdu(tvbuff_t *tvb, proto_tree *tree, int offset, int len, guint8 flags)
{
proto_tree* subtree;
guint encoding = (flags & NETWORK_BYTE_ORDER) ? ENC_BIG_ENDIAN : ENC_LITTLE_ENDIAN;
subtree = proto_tree_add_subtree(tree, tvb, offset, len, ett_unregister, NULL, "Unregister-PDU");
if(flags & NON_DEFAULT_CONTEXT) {
/* show context */
offset += dissect_octet_string(tvb, subtree, offset, flags);
}
proto_tree_add_item(subtree, hf_unreg_timeout, tvb, offset, 1, encoding);
proto_tree_add_item(subtree, hf_unreg_prio, tvb, offset+1, 1, encoding);
proto_tree_add_item(subtree, hf_unreg_rsid, tvb, offset+2, 1, encoding);
offset+=4;
/* Region */
offset += dissect_object_id(tvb, subtree, offset, flags, OID_EXACT);
len += PDU_HDR_LEN;
if(len > offset) {
/* Upper bound (opt) */
proto_tree_add_item(subtree, hf_unreg_ubound, tvb, offset, 4, encoding);
offset += 4;
}
return offset;
}
static void dissect_add_caps_pdu(tvbuff_t *tvb, proto_tree *tree,int offset,int len, char flags)
{
proto_item* item;
proto_tree* subtree;
item = proto_tree_add_text(tree, tvb, offset, len, "AddAgentCaps-PDU");
subtree = proto_item_add_subtree(item, ett_addcap);
if(flags & NON_DEFAULT_CONTEXT) {
/* show context */
offset += dissect_octet_string(tvb, subtree, offset, flags);
}
offset += dissect_object_id(tvb, subtree, offset, flags);
offset += dissect_octet_string(tvb, subtree, offset, flags);
}
static int
dissect_add_caps_pdu(tvbuff_t *tvb, proto_tree *tree, int offset, int len, guint8 flags)
{
proto_tree* subtree;
subtree = proto_tree_add_subtree(tree, tvb, offset, len, ett_addcap, NULL, "AddAgentCaps-PDU");
if(flags & NON_DEFAULT_CONTEXT) {
/* show context */
offset += dissect_octet_string(tvb, subtree, offset, flags);
}
offset += dissect_object_id(tvb, subtree, offset, flags, OID_EXACT);
offset += dissect_octet_string(tvb, subtree, offset, flags);
return offset;
}
static int
dissect_ping_pdu(tvbuff_t *tvb, proto_tree *tree, int offset, int len, guint8 flags)
{
proto_tree* subtree;
subtree = proto_tree_add_subtree(tree, tvb, offset, len, ett_ping, NULL, "Ping-PDU");
if(flags & NON_DEFAULT_CONTEXT) {
/* show context */
offset += dissect_octet_string(tvb, subtree, offset, flags);
}
return offset;
}
static int
dissect_varbind(tvbuff_t *tvb, proto_tree *tree, int offset, int len, guint8 flags)
{
guint16 vtag;
int tlen;
proto_item* item;
proto_tree* subtree;
NORLES(flags, vtag, tvb, offset);
/* 2 reserved bytes after this */
if(tree) {
item = proto_tree_add_text(tree, tvb, offset, len, "Value Representation");
subtree = proto_item_add_subtree(item, ett_valrep);
} else return len;
proto_tree_add_uint(subtree, hf_vtag, tvb, offset, 2, vtag);
tlen = dissect_object_id(tvb, subtree, offset + 4, flags, OID_EXACT);
switch(vtag)
{
case VB_OID:
tlen += dissect_object_id(tvb, subtree, offset + tlen + 4, flags, OID_EXACT);
break;
case VB_OPAQUE:
case VB_OSTR:
case VB_IPADDR:
tlen += dissect_octet_string(tvb, subtree, offset + tlen + 4, flags);
break;
case VB_TIMETICK:
case VB_COUNTER32:
case VB_INT:
case VB_GAUGE32:
tlen += dissect_val32(tvb, subtree, offset + tlen + 4, flags);
break;
case VB_COUNTER64:
tlen += dissect_val64(tvb, subtree, offset + tlen + 4, flags);
break;
case VB_NULL:
case VB_NOSUCHOBJ:
case VB_NOSUCHINST:
case VB_ENDOFMIB:
break;
}
return tlen + 4;
}
static void
dissect_idx_dealloc_pdu(tvbuff_t *tvb, proto_tree *tree, int offset, int len, guint8 flags)
{
proto_tree* subtree;
subtree = proto_tree_add_subtree(tree, tvb, offset, len, ett_idxdalloc, NULL, "IndexDeallocate-PDU");
if(flags & NON_DEFAULT_CONTEXT) {
/* show context */
offset += dissect_octet_string(tvb, subtree, offset, flags);
}
while(len > offset) {
offset += dissect_varbind(tvb, subtree, offset, len, flags);
}
}
static void dissect_idx_alloc_pdu(tvbuff_t *tvb, proto_tree *tree,int offset,int len, char flags)
{
proto_item* item;
proto_tree* subtree;
item = proto_tree_add_text(tree, tvb, offset, len, "IndexAllocate-PDU");
subtree = proto_item_add_subtree(item, ett_idxalloc);
if(flags & NON_DEFAULT_CONTEXT) {
/* show context */
offset += dissect_octet_string(tvb, subtree, offset, flags);
}
while(len > offset) {
offset += dissect_varbind(tvb, subtree, offset, len, flags);
}
}
static void dissect_getnext_pdu(tvbuff_t *tvb, proto_tree *tree,int offset,int len, char flags)
{
proto_item* item;
proto_tree* subtree;
item = proto_tree_add_text(tree, tvb, offset, len, "GetNext-PDU");
subtree = proto_item_add_subtree(item, ett_getnext);
if(flags & NON_DEFAULT_CONTEXT) {
/* show context */
offset += dissect_octet_string(tvb, subtree, offset, flags);
}
while(len > offset) {
offset += dissect_search_range(tvb, subtree, offset, flags);
}
}
static void
dissect_get_pdu(tvbuff_t *tvb, proto_tree *tree, int offset, int len, guint8 flags)
{
proto_tree* subtree;
subtree = proto_tree_add_subtree(tree, tvb, offset, len, ett_get, NULL, "Get-PDU");
if(flags & NON_DEFAULT_CONTEXT) {
/* show context */
offset += dissect_octet_string(tvb, subtree, offset, flags);
}
len += PDU_HDR_LEN;
while(len > offset) {
offset += dissect_search_range(tvb, subtree, offset, flags, AGENTX_GET_PDU);
}
}
static int
dissect_rem_caps_pdu(tvbuff_t *tvb, proto_tree *tree, int offset, int len, guint8 flags)
{
proto_item* item;
proto_tree* subtree;
item = proto_tree_add_text(tree, tvb, offset, len, "RemoveAgentCaps-PDU");
subtree = proto_item_add_subtree(item, ett_remcap);
if(flags & NON_DEFAULT_CONTEXT) {
/* show context */
offset += dissect_octet_string(tvb, subtree, offset, flags);
}
offset += dissect_object_id(tvb, subtree, offset, flags, OID_EXACT);
return offset;
}
static void
dissect_notify_pdu(tvbuff_t *tvb, proto_tree *tree, int offset, int len, guint8 flags)
{
proto_item* item;
proto_tree* subtree;
item = proto_tree_add_text(tree, tvb, offset, len, "Notify-PDU");
subtree = proto_item_add_subtree(item, ett_notify);
if(flags & NON_DEFAULT_CONTEXT) {
/* show context */
offset += dissect_octet_string(tvb, subtree, offset, flags);
}
while(len > offset) {
offset += dissect_varbind(tvb, subtree, offset, len, flags);
}
}
static void dissect_open_pdu(tvbuff_t *tvb, proto_tree *tree,int offset,int len, char flags)
{
proto_item* item;
proto_tree* subtree;
guint8 timeout;
item = proto_tree_add_text(tree, tvb, offset, len, "Open-PDU");
subtree = proto_item_add_subtree(item, ett_open);
timeout = tvb_get_guint8(tvb, offset);
tvb_get_ntoh24(tvb, offset + 1);
proto_tree_add_uint(subtree, hf_open_timeout, tvb, offset, 1, timeout);
offset+=4;
/* Search Range */
offset += dissect_object_id(tvb, subtree, offset, flags);
/* Octet string */
offset += dissect_octet_string(tvb, subtree, offset, flags);
}
static int
dissect_open_pdu(tvbuff_t *tvb, proto_tree *tree, int offset, int len, guint8 flags)
{
proto_tree* subtree;
guint8 timeout;
subtree = proto_tree_add_subtree(tree, tvb, offset, len, ett_open, NULL, "Open-PDU");
timeout = tvb_get_guint8(tvb, offset);
tvb_get_ntoh24(tvb, offset + 1);
proto_tree_add_uint(subtree, hf_open_timeout, tvb, offset, 1, timeout);
offset+=4;
/* Search Range */
offset += dissect_object_id(tvb, subtree, offset, flags, OID_EXACT);
/* Octet string */
offset += dissect_octet_string(tvb, subtree, offset, flags);
return offset;
}
static void
dissect_getbulk_pdu(tvbuff_t *tvb, proto_tree *tree, int offset, int len, guint8 flags)
{
proto_tree* subtree;
guint encoding = (flags & NETWORK_BYTE_ORDER) ? ENC_BIG_ENDIAN : ENC_LITTLE_ENDIAN;
subtree = proto_tree_add_subtree(tree, tvb, offset, len, ett_getbulk, NULL, "GetBulk-PDU");
if(flags & NON_DEFAULT_CONTEXT) {
/* show context */
offset += dissect_octet_string(tvb, subtree, offset, flags);
}
proto_tree_add_item(subtree, hf_gbulk_nrepeat, tvb, offset, 2, encoding);
proto_tree_add_item(subtree, hf_gbulk_mrepeat, tvb, offset + 2, 2, encoding);
offset+=4;
while(len >= offset) {
offset += dissect_search_range(tvb, subtree, offset, flags, 0);
}
}
static void dissect_getbulk_pdu(tvbuff_t *tvb, proto_tree *tree,int offset,int len, char flags)
{
proto_item* item;
proto_tree* subtree;
gboolean little_endian = !(flags & NETWORK_BYTE_ORDER);
item = proto_tree_add_text(tree, tvb, offset, len, "GetBulk-PDU");
subtree = proto_item_add_subtree(item, ett_getbulk);
if(flags & NON_DEFAULT_CONTEXT) {
/* show context */
offset += dissect_octet_string(tvb, subtree, offset, flags);
}
proto_tree_add_item(subtree, hf_gbulk_nrepeat, tvb, offset, 2, little_endian);
proto_tree_add_item(subtree, hf_gbulk_mrepeat, tvb, offset + 2, 2, little_endian);
offset+=4;
while(len >= offset) {
offset += dissect_search_range(tvb, subtree, offset, flags);
}
}
