--- /dev/null
+#pragma once
+/******************************************************************************
+*
+* Copyright (c) 2019 AT&T Intellectual Property.
+* Copyright (c) 2018-2019 Nokia.
+*
+* 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.
+*
+******************************************************************************/
+
+// Standard Includes: ANSI C/C++, MSA, and Third-Party Libraries
+
+// Local Includes: Application specific classes, functions, and libraries
+#include "asn/per/common.hpp"
+
+namespace asn {
+namespace per {
+
+template < class IE, class Enable = void>
+struct Octetstring;
+
+//16.8 Default
+template <class IE, class Enabler = void>
+struct OctetstringNoExt
+{
+ static void inline run(IE const& ie, EncoderCtx& ctx)
+ {
+ bound_t size = ie.get().size();
+ LengthDeterminant<typename IE::constraint_t>::run(ctx, size);
+ Tools::bit_accessor::padByte(ctx.refBuffer());
+ ctx.refBuffer().putBytes(ie.get().data(), size);
+ }
+ static void inline run(IE& ie, DecoderCtx& ctx)
+ {
+ size_t len = LengthDeterminant<typename IE::constraint_t>::run(ctx, false);
+ Tools::bit_accessor::padByte(ctx.refBuffer());
+ u8 const* data_in = ctx.refBuffer().getBytes(len);
+
+ if (data_in)
+ {
+ ie.set(len, data_in);
+ }
+
+ }
+};
+
+//16.5 Zero length
+template <class IE>
+struct OctetstringNoExt<IE, std::enable_if_t< (IE::constraint_t::upper_bound == 0)> >
+{
+ static void inline run(IE const& ie, EncoderCtx& ctx) {/* do nothing */ }
+ static void inline run(IE& ie, DecoderCtx& ctx) { ie.setpresent(true); }
+};
+
+//16.6 Up to two octets, fixed length
+template <class IE>
+struct OctetstringNoExt<IE, std::enable_if_t<
+ ((IE::constraint_t::upper_bound == IE::constraint_t::lower_bound) && (IE::constraint_t::upper_bound == 1))
+>>
+{
+ static void inline run(IE const& ie, EncoderCtx& ctx)
+ {
+ Tools::bit_accessor::put(static_cast<u8>(ie.get().data()[0]), 8, ctx.refBuffer());
+ }
+ static void inline run(IE& ie, DecoderCtx& ctx)
+ {
+ u8 data_in = Tools::bit_accessor::get(8, ctx.refBuffer());
+ u8* data_out = ctx.refAllocator().alloc_bytes(1);
+ if (data_out) {
+ data_out[0] = data_in;
+ ie.set(1, data_out);
+ }
+ else
+ ctx.refErrorCtx().allocatorNoMem(0, 1);
+ }
+};
+
+template <class IE>
+struct OctetstringNoExt<IE, std::enable_if_t<
+ ((IE::constraint_t::upper_bound == IE::constraint_t::lower_bound) && (IE::constraint_t::upper_bound == 2))
+>>
+{
+ static void inline run(IE const& ie, EncoderCtx& ctx)
+ {
+ Tools::bit_accessor::put(static_cast<u8>(ie.get().data()[0]), 8, ctx.refBuffer());
+ Tools::bit_accessor::put(static_cast<u8>(ie.get().data()[1]), 8, ctx.refBuffer());
+ }
+ static void inline run(IE& ie, DecoderCtx& ctx)
+ {
+ u8 data_in[2];
+ data_in[0] = Tools::bit_accessor::get(8, ctx.refBuffer());
+ data_in[1] = Tools::bit_accessor::get(8, ctx.refBuffer());
+ u8* data_out = ctx.refAllocator().alloc_bytes(sizeof(data_in));
+ if (data_out) {
+ data_out[0] = data_in[0];
+ data_out[1] = data_in[1];
+ ie.set(sizeof(data_in), data_out);
+ }
+ else
+ ctx.refErrorCtx().allocatorNoMem(0, sizeof(data_in));
+ }
+};
+
+//16.7 More than 2 octets, up to 64K, fixed length
+template <class IE>
+struct OctetstringNoExt<IE, std::enable_if_t<
+ ((IE::constraint_t::upper_bound == IE::constraint_t::lower_bound) && (IE::constraint_t::upper_bound < 65536) && (IE::constraint_t::upper_bound > 2))
+>>
+{
+ static void inline run(IE const& ie, EncoderCtx& ctx)
+ {
+ Tools::bit_accessor::padByte(ctx.refBuffer());
+ ctx.refBuffer().putBytes(ie.get().data(), ie.get().size());
+ }
+ static void inline run(IE& ie, DecoderCtx& ctx)
+ {
+ Tools::bit_accessor::padByte(ctx.refBuffer());
+ const size_t len = (size_t)IE::constraint_t::upper_bound;
+ u8 const* data_in = ctx.refBuffer().getBytes(len);
+ if (data_in)
+ {
+ ie.set(len, data_in);
+ }
+ }
+};
+
+/**************************************************/
+
+//16.3 : Extension present
+template <class IE>
+struct Octetstring<IE, std::enable_if_t<(IE::constraint_t::extended == true)> >
+{
+ static void inline run(IE const& ie, EncoderCtx& ctx)
+ {
+ bound_t size = ie.get().size();
+ if (size <= IE::constraint_t::upper_bound && size >= IE::constraint_t::lower_bound)
+ {
+ Tools::bit_accessor::put(0, 1, ctx.refBuffer());
+ OctetstringNoExt<IE>::run(ie, ctx);
+ }
+ else
+ {
+ Tools::bit_accessor::put(1, 1, ctx.refBuffer());
+ Tools::bit_accessor::padByte(ctx.refBuffer());
+ LengthDeterminant<typename IE::constraint_t>::run(ctx, size);
+ Tools::bit_accessor::padByte(ctx.refBuffer());
+ ctx.refBuffer().putBytes(ie.get().data(), size);
+ }
+ }
+ static void inline run(IE& ie, DecoderCtx& ctx)
+ {
+ u8 ext = Tools::bit_accessor::get(1, ctx.refBuffer());
+ if (ext)
+ {
+ Tools::bit_accessor::padByte(ctx.refBuffer());
+ size_t len = LengthDeterminant<typename IE::constraint_t>::run(ctx, true);
+ Tools::bit_accessor::padByte(ctx.refBuffer());
+ u8 const* data_in = ctx.refBuffer().getBytes(len);
+ if (data_in)
+ {
+ ie.set(len, data_in);
+ }
+ }
+ else
+ OctetstringNoExt<IE>::run(ie, ctx);
+ }
+};
+
+//16.4 : No extension
+template <class IE>
+struct Octetstring<IE, std::enable_if_t<(IE::constraint_t::extended == false)> >
+{
+ static void inline run(IE const& ie, EncoderCtx& ctx)
+ {
+ if ( ie.get().size() > size_t(IE::constraint_t::upper_bound) ||
+ (IE::constraint_t::lower_bound >= 0 && ie.get().size() < size_t(IE::constraint_t::lower_bound)))
+ {
+ ctx.refErrorCtx().sizeRangeError(ie.get().size(), size_t(IE::constraint_t::lower_bound),
+ size_t(IE::constraint_t::upper_bound));
+ }
+ else
+ {
+ OctetstringNoExt<IE>::run(ie, ctx);
+ }
+ }
+ static void inline run(IE& ie, DecoderCtx& ctx)
+ {
+ OctetstringNoExt<IE>::run(ie, ctx);
+ if ( ie.get().size() > size_t(IE::constraint_t::upper_bound) ||
+ (IE::constraint_t::lower_bound >= 0 && ie.get().size() < size_t(IE::constraint_t::lower_bound)))
+ {
+ ctx.refErrorCtx().sizeRangeError(ie.get().size(), size_t(IE::constraint_t::lower_bound),
+ size_t(IE::constraint_t::upper_bound));
+ }
+ }
+};
+
+} //namespace per
+} //namespace asn
Code Review / sim / e2-interface.git / blobdiff