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packet: Add getter/setter for metadata handling

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This commit is contained in:
Tobias Brunner
2022-01-14 10:13:21 +01:00
parent 269ca19f13
commit 93583d23d6
3 changed files with 65 additions and 8 deletions
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src/libstrongswan/networking/packet.c
+34 -8
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@@ -17,6 +17,8 @@
#include "packet.h"
#include <metadata/metadata_set.h>
typedef struct private_packet_t private_packet_t;
/**
@@ -53,6 +55,11 @@ struct private_packet_t {
* actual chunk returned from get_data, adjusted when skip_bytes is called
*/
chunk_t adjusted_data;
/**
* Set of metadata objects, if any
*/
metadata_set_t *metadata;
};
METHOD(packet_t, set_source, void,
@@ -111,11 +118,28 @@ METHOD(packet_t, skip_bytes, void,
this->adjusted_data = chunk_skip(this->adjusted_data, bytes);
}
METHOD(packet_t, get_metadata, metadata_t*,
private_packet_t *this, const char *key)
{
return metadata_set_get(this->metadata, key);
}
METHOD(packet_t, set_metadata, void,
private_packet_t *this, const char *key, metadata_t *data)
{
if (!this->metadata && data)
{
this->metadata = metadata_set_create();
}
metadata_set_put(this->metadata, key, data);
}
METHOD(packet_t, destroy, void,
private_packet_t *this)
{
DESTROY_IF(this->source);
DESTROY_IF(this->destination);
metadata_set_destroy(this->metadata);
free(this->data.ptr);
free(this);
}
@@ -123,24 +147,24 @@ METHOD(packet_t, destroy, void,
METHOD(packet_t, clone_, packet_t*,
private_packet_t *this)
{
packet_t *other;
private_packet_t *other;
other = packet_create();
other = (private_packet_t*)packet_create();
if (this->destination)
{
other->set_destination(other,
this->destination->clone(this->destination));
set_destination(other, this->destination->clone(this->destination));
}
if (this->source)
{
other->set_source(other, this->source->clone(this->source));
set_source(other, this->source->clone(this->source));
}
if (this->data.ptr)
{
other->set_data(other, chunk_clone(this->adjusted_data));
set_data(other, chunk_clone(this->adjusted_data));
}
other->set_dscp(other, this->dscp);
return other;
other->metadata = metadata_set_clone(this->metadata);
set_dscp(other, this->dscp);
return &other->public;
}
/**
@@ -160,6 +184,8 @@ packet_t *packet_create_from_data(host_t *src, host_t *dst, chunk_t data)
.get_destination = _get_destination,
.get_dscp = _get_dscp,
.set_dscp = _set_dscp,
.get_metadata = _get_metadata,
.set_metadata = _set_metadata,
.skip_bytes = _skip_bytes,
.clone = _clone_,
.destroy = _destroy,