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Diffstat (limited to 'epan/dissectors/packet-h245.c')
-rw-r--r--epan/dissectors/packet-h245.c78
1 files changed, 35 insertions, 43 deletions
diff --git a/epan/dissectors/packet-h245.c b/epan/dissectors/packet-h245.c
index 5fb832f..92b9fa5 100644
--- a/epan/dissectors/packet-h245.c
+++ b/epan/dissectors/packet-h245.c
@@ -2426,7 +2426,6 @@ static int dissect_h245_AudioMode(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t
static int dissect_h245_ModeElementType(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_);
-#define MAX_RECURSION_DEPTH 100 // Arbitrarily chosen.
static int
@@ -3865,15 +3864,14 @@ static const per_sequence_t GenericParameter_sequence[] = {
static int
dissect_h245_GenericParameter(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
- const int proto_id = GPOINTER_TO_INT(wmem_list_frame_data(wmem_list_tail(actx->pinfo->layers)));
- const unsigned cycle_size = 4;
- unsigned recursion_depth = p_get_proto_depth(actx->pinfo, proto_id);
- DISSECTOR_ASSERT(recursion_depth <= MAX_RECURSION_DEPTH);
- p_set_proto_depth(actx->pinfo, proto_id, recursion_depth + cycle_size);
+ // GenericParameter → ParameterValue → ParameterValue/genericParameter → GenericParameter
+ actx->pinfo->dissection_depth += 3;
+ increment_dissection_depth(actx->pinfo);
offset = dissect_per_sequence(tvb, offset, actx, tree, hf_index,
ett_h245_GenericParameter, GenericParameter_sequence);
- p_set_proto_depth(actx->pinfo, proto_id, recursion_depth - cycle_size);
+ actx->pinfo->dissection_depth -= 3;
+ decrement_dissection_depth(actx->pinfo);
return offset;
}
@@ -5666,11 +5664,9 @@ static const per_choice_t VideoCapability_choice[] = {
static int
dissect_h245_VideoCapability(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
- const int proto_id = GPOINTER_TO_INT(wmem_list_frame_data(wmem_list_tail(actx->pinfo->layers)));
- const unsigned cycle_size = 4;
- unsigned recursion_depth = p_get_proto_depth(actx->pinfo, proto_id);
- DISSECTOR_ASSERT(recursion_depth <= MAX_RECURSION_DEPTH);
- p_set_proto_depth(actx->pinfo, proto_id, recursion_depth + cycle_size);
+ // VideoCapability → ExtendedVideoCapability → ExtendedVideoCapability/videoCapability → VideoCapability
+ actx->pinfo->dissection_depth += 3;
+ increment_dissection_depth(actx->pinfo);
gint32 value;
offset = dissect_per_choice(tvb, offset, actx, tree, hf_index,
@@ -5680,7 +5676,8 @@ dissect_h245_VideoCapability(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx
codec_type = val_to_str(value, h245_VideoCapability_vals, "<unknown>");
- p_set_proto_depth(actx->pinfo, proto_id, recursion_depth - cycle_size);
+ actx->pinfo->dissection_depth -= 3;
+ decrement_dissection_depth(actx->pinfo);
return offset;
}
@@ -5988,11 +5985,9 @@ static const per_choice_t AudioCapability_choice[] = {
static int
dissect_h245_AudioCapability(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
- const int proto_id = GPOINTER_TO_INT(wmem_list_frame_data(wmem_list_tail(actx->pinfo->layers)));
- const unsigned cycle_size = 3;
- unsigned recursion_depth = p_get_proto_depth(actx->pinfo, proto_id);
- DISSECTOR_ASSERT(recursion_depth <= MAX_RECURSION_DEPTH);
- p_set_proto_depth(actx->pinfo, proto_id, recursion_depth + cycle_size);
+ // AudioCapability → VBDCapability → AudioCapability
+ actx->pinfo->dissection_depth += 2;
+ increment_dissection_depth(actx->pinfo);
gint32 value;
offset = dissect_per_choice(tvb, offset, actx, tree, hf_index,
@@ -6001,7 +5996,8 @@ dissect_h245_AudioCapability(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx
codec_type = val_to_str(value, h245_AudioCapability_short_vals, "<unknown>");
- p_set_proto_depth(actx->pinfo, proto_id, recursion_depth - cycle_size);
+ actx->pinfo->dissection_depth -= 2;
+ decrement_dissection_depth(actx->pinfo);
return offset;
}
@@ -7152,11 +7148,9 @@ static const per_choice_t DataType_choice[] = {
static int
dissect_h245_DataType(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
- const int proto_id = GPOINTER_TO_INT(wmem_list_frame_data(wmem_list_tail(actx->pinfo->layers)));
- const unsigned cycle_size = 5;
- unsigned recursion_depth = p_get_proto_depth(actx->pinfo, proto_id);
- DISSECTOR_ASSERT(recursion_depth <= MAX_RECURSION_DEPTH);
- p_set_proto_depth(actx->pinfo, proto_id, recursion_depth + cycle_size);
+ // DataType → H235Media → H235Media/mediaType → RedundancyEncoding → DataType
+ actx->pinfo->dissection_depth += 4;
+ increment_dissection_depth(actx->pinfo);
gint choice_index;
offset = dissect_per_choice(tvb, offset, actx, tree, hf_index,
@@ -7173,7 +7167,8 @@ if (upcoming_channel){
}
- p_set_proto_depth(actx->pinfo, proto_id, recursion_depth - cycle_size);
+ actx->pinfo->dissection_depth -= 4;
+ decrement_dissection_depth(actx->pinfo);
return offset;
}
@@ -8874,11 +8869,9 @@ static const per_sequence_t MultiplexElement_sequence[] = {
static int
dissect_h245_MultiplexElement(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
- const int proto_id = GPOINTER_TO_INT(wmem_list_frame_data(wmem_list_tail(actx->pinfo->layers)));
- const unsigned cycle_size = 4;
- unsigned recursion_depth = p_get_proto_depth(actx->pinfo, proto_id);
- DISSECTOR_ASSERT(recursion_depth <= MAX_RECURSION_DEPTH);
- p_set_proto_depth(actx->pinfo, proto_id, recursion_depth + cycle_size);
+ // MultiplexElement → MultiplexElement/type → MultiplexElement/type/subElementList → MultiplexElement
+ actx->pinfo->dissection_depth += 3;
+ increment_dissection_depth(actx->pinfo);
/*MultiplexElement*/
h223_mux_element* me = wmem_new(wmem_file_scope(), h223_mux_element);
h223_me->next = me;
@@ -8887,7 +8880,8 @@ dissect_h245_MultiplexElement(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *act
offset = dissect_per_sequence(tvb, offset, actx, tree, hf_index,
ett_h245_MultiplexElement, MultiplexElement_sequence);
- p_set_proto_depth(actx->pinfo, proto_id, recursion_depth - cycle_size);
+ actx->pinfo->dissection_depth -= 3;
+ decrement_dissection_depth(actx->pinfo);
return offset;
}
@@ -9509,11 +9503,9 @@ static const per_choice_t AudioMode_choice[] = {
static int
dissect_h245_AudioMode(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
- const int proto_id = GPOINTER_TO_INT(wmem_list_frame_data(wmem_list_tail(actx->pinfo->layers)));
- const unsigned cycle_size = 3;
- unsigned recursion_depth = p_get_proto_depth(actx->pinfo, proto_id);
- DISSECTOR_ASSERT(recursion_depth <= MAX_RECURSION_DEPTH);
- p_set_proto_depth(actx->pinfo, proto_id, recursion_depth + cycle_size);
+ // AudioMode → VBDMode → AudioMode
+ actx->pinfo->dissection_depth += 2;
+ increment_dissection_depth(actx->pinfo);
gint32 value;
offset = dissect_per_choice(tvb, offset, actx, tree, hf_index,
@@ -9522,7 +9514,8 @@ dissect_h245_AudioMode(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_,
codec_type = val_to_str(value, h245_AudioMode_vals, "<unknown>");
- p_set_proto_depth(actx->pinfo, proto_id, recursion_depth - cycle_size);
+ actx->pinfo->dissection_depth -= 2;
+ decrement_dissection_depth(actx->pinfo);
return offset;
}
@@ -9868,16 +9861,15 @@ static const per_choice_t ModeElementType_choice[] = {
static int
dissect_h245_ModeElementType(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
- const int proto_id = GPOINTER_TO_INT(wmem_list_frame_data(wmem_list_tail(actx->pinfo->layers)));
- const unsigned cycle_size = 6;
- unsigned recursion_depth = p_get_proto_depth(actx->pinfo, proto_id);
- DISSECTOR_ASSERT(recursion_depth <= MAX_RECURSION_DEPTH);
- p_set_proto_depth(actx->pinfo, proto_id, recursion_depth + cycle_size);
+ // ModeElementType → RedundancyEncodingDTMode → RedundancyEncodingDTModeElement → RedundancyEncodingDTModeElement/type → FECMode → ModeElementType
+ actx->pinfo->dissection_depth += 5;
+ increment_dissection_depth(actx->pinfo);
offset = dissect_per_choice(tvb, offset, actx, tree, hf_index,
ett_h245_ModeElementType, ModeElementType_choice,
NULL);
- p_set_proto_depth(actx->pinfo, proto_id, recursion_depth - cycle_size);
+ actx->pinfo->dissection_depth -= 5;
+ decrement_dissection_depth(actx->pinfo);
return offset;
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-10 17:00:29 +0000