Initial commit: ccnxlibs.

Change-Id: I1b376527a7dd01a6b9e083a6cb646955902f45c0
Signed-off-by: Luca Muscariello <lumuscar+fdio@cisco.com>

1 files changed, 187 insertions, 0 deletions

diff --git a/libccnx-common/ccnx/common/codec/schema_v1/ccnxCodecSchemaV1_OptionalHeadersEncoder.c b/libccnx-common/ccnx/common/codec/schema_v1/ccnxCodecSchemaV1_OptionalHeadersEncoder.c
new file mode 100755
index 00000000..f108a1c3
--- /dev/null
+++ b/libccnx-common/ccnx/common/codec/schema_v1/ccnxCodecSchemaV1_OptionalHeadersEncoder.c
@@ -0,0 +1,187 @@
+/*
+ * Copyright (c) 2017 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <LongBow/runtime.h>
+
+#include <parc/algol/parc_Memory.h>
+#include <parc/algol/parc_Buffer.h>
+
+#include <ccnx/common/codec/schema_v1/ccnxCodecSchemaV1_OptionalHeadersEncoder.h>
+#include <ccnx/common/codec/schema_v1/ccnxCodecSchemaV1_Types.h>
+#include <ccnx/common/codec/ccnxCodec_TlvUtilities.h>
+
+static ssize_t
+_EncodeInterestLifetime(CCNxCodecTlvEncoder *optionalHeadersEncoder, CCNxTlvDictionary *packetDictionary)
+{
+    ssize_t length = 0;
+
+    // allow either encoding as an Integer or as a Buffer
+
+    if (ccnxTlvDictionary_IsValueInteger(packetDictionary, CCNxCodecSchemaV1TlvDictionary_HeadersFastArray_InterestLifetime)) {
+        uint64_t lifetime = ccnxTlvDictionary_GetInteger(packetDictionary, CCNxCodecSchemaV1TlvDictionary_HeadersFastArray_InterestLifetime);
+        length = ccnxCodecTlvEncoder_AppendVarInt(optionalHeadersEncoder, CCNxCodecSchemaV1Types_OptionalHeaders_InterestLifetime, lifetime);
+    } else if (ccnxTlvDictionary_IsValueBuffer(packetDictionary, CCNxCodecSchemaV1TlvDictionary_HeadersFastArray_InterestLifetime)) {
+        PARCBuffer *lifetime = ccnxTlvDictionary_GetBuffer(packetDictionary, CCNxCodecSchemaV1TlvDictionary_HeadersFastArray_InterestLifetime);
+        length = ccnxCodecTlvEncoder_AppendBuffer(optionalHeadersEncoder, CCNxCodecSchemaV1Types_OptionalHeaders_InterestLifetime, lifetime);
+    }
+
+    return length;
+}
+
+static ssize_t
+_EncodeRecommendedCacheTime(CCNxCodecTlvEncoder *optionalHeadersEncoder, CCNxTlvDictionary *packetDictionary)
+{
+    ssize_t length = 0;
+
+    // allow either encoding as an Integer or as a Buffer
+
+    if (ccnxTlvDictionary_IsValueInteger(packetDictionary, CCNxCodecSchemaV1TlvDictionary_HeadersFastArray_RecommendedCacheTime)) {
+        uint64_t cacheTime = ccnxTlvDictionary_GetInteger(packetDictionary, CCNxCodecSchemaV1TlvDictionary_HeadersFastArray_RecommendedCacheTime);
+        length = ccnxCodecTlvEncoder_AppendVarInt(optionalHeadersEncoder, CCNxCodecSchemaV1Types_OptionalHeaders_RecommendedCacheTime, cacheTime);
+    } else if (ccnxTlvDictionary_IsValueBuffer(packetDictionary, CCNxCodecSchemaV1TlvDictionary_HeadersFastArray_RecommendedCacheTime)) {
+        PARCBuffer *cacheTime = ccnxTlvDictionary_GetBuffer(packetDictionary, CCNxCodecSchemaV1TlvDictionary_HeadersFastArray_RecommendedCacheTime);
+        length = ccnxCodecTlvEncoder_AppendBuffer(optionalHeadersEncoder, CCNxCodecSchemaV1Types_OptionalHeaders_RecommendedCacheTime, cacheTime);
+    }
+
+    return length;
+}
+
+static ssize_t
+_EncodePathLabel(CCNxCodecTlvEncoder *optionalHeadersEncoder, CCNxTlvDictionary *packetDictionary)
+{
+    ssize_t length = 0;
+
+    if (ccnxTlvDictionary_IsValueInteger(packetDictionary, CCNxCodecSchemaV1TlvDictionary_HeadersFastArray_PathLabel)) {
+        uint16_t pathLabel = ccnxTlvDictionary_GetInteger(packetDictionary, CCNxCodecSchemaV1TlvDictionary_HeadersFastArray_PathLabel);
+        length = ccnxCodecTlvEncoder_AppendVarInt(optionalHeadersEncoder, CCNxCodecSchemaV1Types_OptionalHeaders_PathLabel, pathLabel);
+    } else if (ccnxTlvDictionary_IsValueBuffer(packetDictionary, CCNxCodecSchemaV1TlvDictionary_HeadersFastArray_PathLabel)) {
+        PARCBuffer *pathLabel = ccnxTlvDictionary_GetBuffer(packetDictionary, CCNxCodecSchemaV1TlvDictionary_HeadersFastArray_PathLabel);
+        length = ccnxCodecTlvEncoder_AppendBuffer(optionalHeadersEncoder, CCNxCodecSchemaV1Types_OptionalHeaders_PathLabel, pathLabel);
+    }
+
+    return length;
+}
+
+static ssize_t
+_EncodeInterestFrag(CCNxCodecTlvEncoder *optionalHeadersEncoder, CCNxTlvDictionary *packetDictionary)
+{
+    ssize_t length = 0;
+    PARCBuffer *buffer = ccnxTlvDictionary_GetBuffer(packetDictionary, CCNxCodecSchemaV1TlvDictionary_HeadersFastArray_INTFRAG);
+    if (buffer != NULL) {
+        length = ccnxCodecTlvEncoder_AppendBuffer(optionalHeadersEncoder, CCNxCodecSchemaV1Types_OptionalHeaders_InterestFragment, buffer);
+    }
+    return length;
+}
+
+static ssize_t
+_EncodeContentObjectFrag(CCNxCodecTlvEncoder *optionalHeadersEncoder, CCNxTlvDictionary *packetDictionary)
+{
+    ssize_t length = 0;
+    PARCBuffer *buffer = ccnxTlvDictionary_GetBuffer(packetDictionary, CCNxCodecSchemaV1TlvDictionary_HeadersFastArray_OBJFRAG);
+    if (buffer != NULL) {
+        length = ccnxCodecTlvEncoder_AppendBuffer(optionalHeadersEncoder, CCNxCodecSchemaV1Types_OptionalHeaders_ContentObjectFragment, buffer);
+    }
+    return length;
+}
+
+static ssize_t
+_EncodeInterestHeaders(CCNxCodecTlvEncoder *optionalHeadersEncoder, CCNxTlvDictionary *packetDictionary)
+{
+    ssize_t length = 0;
+    ssize_t intFragLength = _EncodeInterestFrag(optionalHeadersEncoder, packetDictionary);
+    if (intFragLength < 0) {
+        return intFragLength;
+    }
+    length += intFragLength;
+
+    ssize_t intLifeLength = _EncodeInterestLifetime(optionalHeadersEncoder, packetDictionary);
+    if (intLifeLength < 0) {
+        return intLifeLength;
+    }
+    length += intLifeLength;
+
+    ssize_t customLength = ccnxCodecTlvUtilities_EncodeCustomList(optionalHeadersEncoder, packetDictionary, CCNxCodecSchemaV1TlvDictionary_Lists_HEADERS);
+    if (customLength < 0) {
+        return customLength;
+    }
+    length += customLength;
+
+    return length;
+}
+
+static ssize_t
+_EncodeContentObjectHeaders(CCNxCodecTlvEncoder *optionalHeadersEncoder, CCNxTlvDictionary *packetDictionary)
+{
+    ssize_t length = 0;
+    ssize_t result;
+
+    result = _EncodeContentObjectFrag(optionalHeadersEncoder, packetDictionary);
+    if (result < 0) {
+        return result;
+    }
+    length += result;
+
+    result = _EncodeRecommendedCacheTime(optionalHeadersEncoder, packetDictionary);
+    if (result < 0) {
+        return result;
+    }
+    length += result;
+
+    result = _EncodePathLabel(optionalHeadersEncoder, packetDictionary);
+    if (result < 0) {
+        return result;
+    }
+    length += result;
+
+    result = ccnxCodecTlvUtilities_EncodeCustomList(optionalHeadersEncoder, packetDictionary, CCNxCodecSchemaV1TlvDictionary_Lists_HEADERS);
+    if (result < 0) {
+        return result;
+    }
+    length += result;
+
+    return length;
+}
+
+
+ssize_t
+ccnxCodecSchemaV1OptionalHeadersEncoder_Encode(CCNxCodecTlvEncoder *optionalHeadersEncoder, CCNxTlvDictionary *packetDictionary)
+{
+    assertNotNull(optionalHeadersEncoder, "Parameter optionalHeadersEncoder must be non-null");
+    assertNotNull(packetDictionary, "Parameter packetDictionary must be non-null");
+
+    ssize_t result = 0;
+    if (ccnxTlvDictionary_IsInterest(packetDictionary) || ccnxTlvDictionary_IsInterestReturn(packetDictionary)) {
+        result = _EncodeInterestHeaders(optionalHeadersEncoder, packetDictionary);
+    } else if (ccnxTlvDictionary_IsContentObject(packetDictionary) || ccnxTlvDictionary_IsManifest(packetDictionary)) {
+        result = _EncodeContentObjectHeaders(optionalHeadersEncoder, packetDictionary);
+    } else if (ccnxTlvDictionary_IsControl(packetDictionary)) {
+        result = ccnxCodecTlvUtilities_EncodeCustomList(optionalHeadersEncoder, packetDictionary, CCNxCodecSchemaV1TlvDictionary_Lists_HEADERS);
+    } else {
+        CCNxCodecError *error = ccnxCodecError_Create(TLV_ERR_PACKETTYPE, __func__, __LINE__, ccnxCodecTlvEncoder_Position(optionalHeadersEncoder));
+        ccnxCodecTlvEncoder_SetError(optionalHeadersEncoder, error);
+        ccnxCodecError_Release(&error);
+        result = -1;
+    }
+
+    return result;
+}