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/*
* 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.
*/
/**
* @file interest_nameA_crc32c.h
* @brief Interest with CRC validation
*
* Ground truth set derived from CRC RevEng http://reveng.sourceforge.net
* e.g. reveng -c -m CRC-32C 313233343536373839 gives the canonical check value 0xe306928e
*
* You can also calcaulate CRC32C online at http://www.zorc.breitbandkatze.de/crc.html using
* CRC polynomial 0x1EDC6F41, init 0xFFFFFFFF, final 0xFFFFFFFF, reverse data bytes (check),
* and reverse CRC result before final XOR (check).
*
* you can get the packet dump from the "write_packets" command. here's the detailed steps.
* The -c size of 4 in steps 4 and 7 are chosen to make it easy to delete the right number of lines.
* there's nothing magic about the "4".
*
* 1) execute ./write_packets
* 2) xxd -r -c 8 v1_content_nameA_crc32c.txt > y
* 3) vim -b y
* 4) :%!xxd -p -c 4
* 5) Delete the frist 44 bytes (11 lines). The first line should now be:
* 00020015
* 6) Delete the last 8 bytes
* The last line two lines should be:
* 04000200
* 00
* What's left is the part to be signed.
* 7) :%!xxd -r -p -c 4
* 8) :wq
* 9) dump the file to one long URL-escaped hex string with
* xxd -p -c 256 y | sed 's/[0-9a-f]\{2\}/%&/g'
* 10) Copy the hex string to the website and use the settings specified above (don't use 0x in front
* of any hex strings). Click "compute!"
* 11) The answer should be 2C3CC0Af
* 12) Put the byte array from (11) in the Validation Payload.
*
*/
#ifndef v1_content_nameA_crc32c_h
#define v1_content_nameA_crc32c_h
#include <ccnx/common/codec/testdata/testdata_common.h>
#include <ccnx/common/codec/schema_v1/testdata/v1_ContentObjectSchema.h>
/**
* A well formed interest with only a name
*/
__attribute__((unused))
static uint8_t v1_content_nameA_crc32c[] = {
0x01, 0x01, 0x00, 85, // ver = 1, type = content object, length = 85
0x00, 0x00, 0x00, 44, // HopLimit = 31, reserved = 0, header length = 44
// ------------------------
0x00, 0x05, 0x00, 20, // ContentObject Fragment, length = 20
0x12, 0x23, 0x34, 0x45,
0x56, 0x67, 0x78, 0x89, // fragid 0x1223344556677889
0x05, 0xDC, 0x01, 0x00, // MTU 1500, fragcnt 1, fragnum 0
0x01, 0x02, 0x03, 0x04,
0x05, 0x06, 0x07, 0x08, // interest fragment 0x0102030405060708
// ------------------------
0x00, 0x02, 0x00, 8, // Recommended Cache Time
0x00, 0x00, 0x00, 0x00,
0x00, 0x6D, 0xDD, 0x00, // 2 hours (0x6DDD00 milli seconds)
// ------------------------
0x00, 0x02, 0x00, 21, // type = content object, length = 21
// ------------------------
0x00, 0x00, 0x00, 0x11, // type = name, length = 17
0x00, 0x03, 0x00, 0x05, // type = binary, length = 5
'h', 'e', 'l', 'l', // "hello"
'o',
0xF0, 0x00, 0x00, 0x04, // type = app, length = 4
'o', 'u', 'c', 'h', // "ouch"
// ------------------------
0x00, 0x03, 0x00, 4, // validation alg, length = 4
0x00, 0x02, 0x00, 0x00, // CRC32C
// ------------------------
0x00, 0x04, 0x00, 4, // validation payload
0x2C, 0x3C, 0xC0, 0xAF // 2C3CC0AF
};
__attribute__((unused))
static TruthTableEntry
TRUTHTABLENAME(v1_content_nameA_crc32c)[] =
{
{ .wellKnownType = true, .indexOrKey = V1_MANIFEST_OBJ_E2EFRAG, .bodyManifest = false, .extent = { 12, 20 } },
{ .wellKnownType = true, .indexOrKey = V1_MANIFEST_OBJ_RecommendedCacheTime, .bodyManifest = false, .extent = { 36, 8 } },
{ .wellKnownType = true, .indexOrKey = V1_MANIFEST_OBJ_CONTENTOBJECT, .bodyManifest = true, .extent = { 48, 21 } },
{ .wellKnownType = true, .indexOrKey = V1_MANIFEST_OBJ_NAME, .bodyManifest = true, .extent = { 52, 17 } },
{ .wellKnownType = true, .indexOrKey = V1_MANIFEST_OBJ_ValidationAlg, .bodyManifest = true, .extent = { 73, 4 } },
{ .wellKnownType = true, .indexOrKey = V1_MANIFEST_OBJ_SIGBITS, .bodyManifest = true, .extent = { 81, 4 } },
{ .wellKnownType = false, .indexOrKey = T_INVALID, .extent = { 0, 0 } },
};
#define v1_content_nameA_crc32c_truthTable TABLEENTRY(v1_content_nameA_crc32c, TLV_ERR_NO_ERROR)
#define v1_content_nameA_crc32c_URI "lci:/3=hello/0xf000=ouch"
#endif
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