blob: 926cc59a43dba5b5e8757cfc593a10bcef7ad0fd [file] [log] [blame]
#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
#include <cose.h>
#include <sys/stat.h>
#include <cn-cbor/cn-cbor.h>
#include <fcntl.h>
#include <stdlib.h>
#include <string.h>
#include <stdarg.h>
#ifndef _countof
#define _countof(x) (sizeof(x)/sizeof(x[0]))
#endif
#ifndef _MSC_VER
#define strcat_s(a, b, c) strcat(a, c)
#endif
typedef struct _FOO {
char * fieldName;
int type;
int value;
struct _FOO * children;
int count;
int group;
} FOO;
FOO Recipients;
extern FOO Signer[];
FOO AlgorithmMap[32] = {
{ "ES512", CN_CBOR_INT, -9, NULL, 0, 0 },
{ "ES384", CN_CBOR_INT, -8, NULL, 0, 0 },
{"ES256", CN_CBOR_INT, -7, NULL, 0, 0 },
{"direct", CN_CBOR_INT, -6, NULL, 0, 0 },
{"A256KW", CN_CBOR_INT, -5, NULL, 0, 0 },
{"A192KW", CN_CBOR_INT, -4, NULL, 0, 0 },
{"A128KW", CN_CBOR_INT, -3, NULL, 0, 0 },
{"AES-GCM 128", CN_CBOR_UINT, 1, NULL, 0, 0 },
{"AES-GCM 192", CN_CBOR_UINT, 2, NULL, 0, 0 },
{"AES-GCM 256", CN_CBOR_UINT, 3, NULL, 0, 0 },
{"HMAC 256//256", CN_CBOR_UINT, 4, NULL, 0, 0 },
{"HMAC 384//384", CN_CBOR_UINT, 5, NULL, 0, 0 },
{"HMAC 512//512", CN_CBOR_UINT, 6, NULL, 0, 0 },
{"AES-CCM-16-64-128", CN_CBOR_UINT, 10, NULL, 0, 0 },
{"AES-CCM-16-64-256", CN_CBOR_UINT, 11, NULL, 0, 0 },
{"AES-CCM-16-128-128", CN_CBOR_UINT, 12, NULL, 0, 0 },
{"AES-CCM-16-128-256", CN_CBOR_UINT, 13, NULL, 0, 0 },
{"ChaCha20//Poly1305", CN_CBOR_UINT, 24, NULL, 0, 0 },
{"AES-CCM-64-64-128", CN_CBOR_UINT, 30, NULL, 0, 0 },
{"AES-CCM-64-64-256", CN_CBOR_UINT, 31, NULL, 0, 0 },
{"AES-CCM-64-128-128", CN_CBOR_UINT, 32, NULL, 0, 0 },
{"AES-CCM-64-128-256", CN_CBOR_UINT, 33, NULL, 0, 0 },
{"ECDH-ES + HKDF-256", CN_CBOR_UINT, 50, NULL, 0, 0 },
{"ECDH-ES + HKDF-512", CN_CBOR_UINT, 51, NULL, 0, 0 },
{"ECDH-SS + HKDF-256", CN_CBOR_UINT, 52, NULL, 0, 0 },
{"ECDH-SS + HKDF-512", CN_CBOR_UINT, 53, NULL, 0, 0 },
{"ECHD-ES+A128KW", CN_CBOR_UINT, 54, NULL, 0, 0 },
{ "ECHD-ES+A192KW", CN_CBOR_UINT, 55, NULL, 0, 0 },
{ "ECHD-ES+A256KW", CN_CBOR_UINT, 56, NULL, 0, 0 },
{ "ECHD-SS+A128KW", CN_CBOR_UINT, 57, NULL, 0, 0 },
{ "ECHD-SS+A192KW", CN_CBOR_UINT, 58, NULL, 0, 0 },
{ "ECHD-SS+A256KW", CN_CBOR_UINT, 59, NULL, 0, 0 },
};
FOO KeyMap[9] = {
{"kty", CN_CBOR_UINT, 1, NULL, 0, 0 },
{"kid", CN_CBOR_UINT, 2, NULL, 0, 0 },
{"alg", CN_CBOR_UINT, 3, AlgorithmMap, _countof(AlgorithmMap), 0 },
{"key_ops", CN_CBOR_UINT, 4, NULL, 0, 0 },
{"crv", CN_CBOR_INT, -1, NULL, 0, 2},
{"x", CN_CBOR_INT, -2, NULL, 0, 2},
{"y", CN_CBOR_INT, -3, NULL, 0, 2},
{"d", CN_CBOR_INT, -4, NULL, 0, 2},
{"k", CN_CBOR_INT, -1, NULL, 0, 4}
};
FOO Key = {
NULL, CN_CBOR_MAP, 0, KeyMap, _countof(KeyMap), 0
};
FOO KeySet = {
NULL, CN_CBOR_ARRAY, 0, &Key, 1, 0
};
FOO HeaderMap[27] = {
{ "alg", CN_CBOR_UINT, 1, AlgorithmMap, _countof(AlgorithmMap), 0 },
{ "crit", CN_CBOR_UINT, 2, NULL, 0, 0 },
{ "content type", CN_CBOR_UINT, 3, NULL, 0, 0},
{ "kid", CN_CBOR_UINT, 4, NULL, 0, 0},
{ "iv", CN_CBOR_UINT, 5, NULL, 0, 0 },
{ "partial iv", CN_CBOR_UINT, 6, NULL, 0, 0 },
{ "countersign", CN_CBOR_UINT, 7, Signer, 5, 0 },
{ "op time", CN_CBOR_INT, 8, NULL, 0, 0 },
{ "ephemeral", CN_CBOR_INT, -1, KeyMap, _countof(KeyMap), 50},
{"salt", CN_CBOR_INT, -20, NULL, 0, 50 },
{ "U identity", CN_CBOR_INT, -21, NULL, 0, 50 },
{ "U nonce", CN_CBOR_INT, -22, NULL, 0, 50 },
{ "U other", CN_CBOR_INT, -23, NULL, 0, 50 },
{ "V identity", CN_CBOR_INT, -24, NULL, 0, 50 },
{ "V nonce", CN_CBOR_INT, -25, NULL, 0, 50 },
{ "V other", CN_CBOR_INT, -26, NULL, 0, 50 },
{ "static key", CN_CBOR_INT, -2, NULL, 0, 50},
{ "static kid", CN_CBOR_INT, -3, NULL, 0, 50},
{"salt", CN_CBOR_INT, -20, NULL, 0, 52 },
{ "U identity", CN_CBOR_INT, -21, NULL, 0, 52 },
{ "U nonce", CN_CBOR_INT, -22, NULL, 0, 52 },
{ "U other", CN_CBOR_INT, -23, NULL, 0, 52 },
{ "V identity", CN_CBOR_INT, -24, NULL, 0, 52 },
{ "V nonce", CN_CBOR_INT, -25, NULL, 0, 52 },
{ "V other", CN_CBOR_INT, -26, NULL, 0, 52 },
{ "static key", CN_CBOR_INT, -2, NULL, 0, 52 },
{ "static kid", CN_CBOR_INT, -3, NULL, 0, 52 }
};
FOO RecurseHeaderMap = {
NULL, CN_CBOR_MAP, 0, HeaderMap, _countof(HeaderMap), 0
};
FOO EncryptedBody[4] = {
{ "protected", CN_CBOR_BYTES, 0, &RecurseHeaderMap, 1, 0 },
{ "unprotected", CN_CBOR_MAP, 0, HeaderMap, _countof(HeaderMap), 0 },
{ "ciphertext", CN_CBOR_BYTES, 0, NULL, 0, 0 },
{ "recipients", CN_CBOR_ARRAY, 0, &Recipients, 1, 0 }
};
FOO Recipients = {
NULL, CN_CBOR_ARRAY, 0, EncryptedBody, _countof(EncryptedBody), 0
};
FOO MacBody[5] = {
{ "protected", CN_CBOR_BYTES, 0, &RecurseHeaderMap, 1, 0 },
{ "unprotected", CN_CBOR_MAP, 0, HeaderMap, _countof(HeaderMap), 0 },
{ "payload", CN_CBOR_BYTES, 0, NULL, 0, 0 },
{ "tag", CN_CBOR_BYTES, 0, NULL, 0, 0 },
{ "recipients", CN_CBOR_ARRAY, 0, &Recipients, 1, 0 }
};
FOO Signer[5] = {
{ "protected", CN_CBOR_BYTES, 0, &RecurseHeaderMap, 1, 0 },
{ "unprotected", CN_CBOR_MAP, 0, HeaderMap, _countof(HeaderMap), 0 },
{ "signature", CN_CBOR_BYTES, 0, NULL, 0, 0 },
};
FOO Signers = {
NULL, CN_CBOR_ARRAY, 0, Signer, _countof(Signer), 0
};
FOO SignBody[5] = {
{ "protected", CN_CBOR_BYTES, 0, &RecurseHeaderMap, 1, 0 },
{ "unprotected", CN_CBOR_MAP, 0, HeaderMap, _countof(HeaderMap), 0 },
{ "payload", CN_CBOR_BYTES, 0, NULL, 0, 0 },
{ "signatures", CN_CBOR_ARRAY, 0, &Signers, 1, 0 }
};
FOO EnvelopedMessage = {
NULL, CN_CBOR_ARRAY, 0, EncryptedBody, _countof(EncryptedBody), 0
};
FOO SignedMessage = {
NULL, CN_CBOR_ARRAY, 0, SignBody, _countof(SignBody), 0
};
FOO MacMessage = {
NULL, CN_CBOR_ARRAY, 0, MacBody, _countof(MacBody), 0
};
FOO EncryptedMessage = {
NULL, CN_CBOR_ARRAY, 0, EncryptedBody, _countof(EncryptedBody)-1, 0
};
FOO EncryptedMessageWithTag = {
NULL, CN_CBOR_TAG, 997, &EncryptedMessage, 1, 0
};
FOO EnvelopedMessageWithTag = {
NULL, CN_CBOR_TAG, 998, &EnvelopedMessage, 1, 0
};
FOO SignedMessageWithTag = {
NULL, CN_CBOR_TAG, 999, &SignedMessage, 1, 0
};
FOO MacMessageWithTag = {
NULL, CN_CBOR_TAG, 996, &MacMessage, 1, 0
};
FOO Mac0Body[4] = {
{ "protected", CN_CBOR_BYTES, 0, &RecurseHeaderMap, 1, 0 },
{ "unprotected", CN_CBOR_MAP, 0, HeaderMap, _countof(HeaderMap), 0 },
{ "payload", CN_CBOR_BYTES, 0, NULL, 0, 0 },
{ "tag", CN_CBOR_BYTES, 0, NULL, 0, 0 }
};
FOO Mac0Message = {
NULL, CN_CBOR_ARRAY, 0, Mac0Body, _countof(Mac0Body), 0
};
FOO Mac0MessageWithTag = {
NULL, CN_CBOR_TAG, 995, &Mac0Message, 1, 0
};
int WrapLineAt = 0;
char OutputBuffer[4096];
void WrapPrintF(FILE * fp, char * format, ...)
{
va_list args;
char buffer[4000];
char * iRet;
va_start(args, format);
vsprintf(buffer, format, args);
if (WrapLineAt == 0) {
fprintf(fp, "%s", buffer);
return;
}
strcat_s(OutputBuffer, sizeof(OutputBuffer), buffer);
while ((iRet = strchr(OutputBuffer, '\n'))) {
char * t = OutputBuffer;
*iRet = 0;
while (strlen(t) > WrapLineAt) {
char x = t[WrapLineAt];
t[WrapLineAt] = 0;
fprintf(fp, "%s", t);
fprintf(fp, "\n");
t[WrapLineAt] = x;
t += WrapLineAt;
}
fprintf(fp, "%s", t);
fprintf(fp, "\n");
strcpy(OutputBuffer, iRet + 1);
}
}
void Indent(FILE * fp, int depth)
{
int i;
for (i = 0; i < depth; i++) WrapPrintF(fp, " ");
}
void PrintUsage()
{
fprintf(stderr, "dumper [<filein> [<fileout>]]\n");
exit(1);
}
void DumpBytes(FILE * fp, const cn_cbor* cbor, int depth)
{
int i;
int fText = true;
for (i = 0; i < cbor->length; i++) {
if ((cbor->v.bytes[i] < 32) || (cbor->v.bytes[i] > 126)) fText = false;
}
if (fText && (cbor->length > 0)) {
WrapPrintF(fp, "'");
for (i = 0; i < cbor->length; i++) {
WrapPrintF(fp, "%c", cbor->v.bytes[i]);
}
WrapPrintF(fp, "'");
}
else {
WrapPrintF(fp, "h'");
for (i = 0; i < cbor->length; i++) {
WrapPrintF(fp, "%02x", cbor->v.bytes[i]);
}
WrapPrintF(fp, "'");
}
}
void DumpTree(const cn_cbor * cbor, FILE * out, const FOO *pFOO, int depth, int fField, int fValue, int fInComment)
{
int i;
int i2;
const cn_cbor * cbor2;
const FOO * pFoo2;
int group;
if (pFOO != NULL) {
switch (pFOO->type) {
case CN_CBOR_TAG:
if (cbor->type != CN_CBOR_TAG) pFOO = NULL;
break;
default:
break;
}
}
if (fField && (pFOO != NULL) && (pFOO->fieldName != NULL)) {
if (fInComment) WrapPrintF(out, "\\ %s \\ ", pFOO -> fieldName);
else WrapPrintF(out, "/ %s / ", pFOO->fieldName);
}
switch (cbor->type) {
case CN_CBOR_TAG:
WrapPrintF(out, "%u(\n", cbor->v.uint);
Indent(out, depth + 1);
DumpTree(cbor->last_child, out, pFOO != NULL ? pFOO->children : NULL, depth+1, true, true, fInComment);
WrapPrintF(out, "\n");
Indent(out, depth);
WrapPrintF(out, ")");
break;
case CN_CBOR_ARRAY:
WrapPrintF(out, "[");
cbor2 = cbor->first_child;
for (i = 0; i < cbor->length; i++, cbor2 = cbor2->next) {
if (i != 0) WrapPrintF(out, ", ");
if (pFOO == NULL) pFoo2 = NULL;
else if (pFOO->count == 1) pFoo2 = pFOO->children;
else if (i >= pFOO->count) pFoo2 = NULL;
else pFoo2 = &pFOO->children[i];
WrapPrintF(out, "\n");
Indent(out, depth + 1);
DumpTree(cbor2, out, pFoo2, depth + 1, true, true, fInComment);
}
if (i > 0) {
WrapPrintF(out, "\n");
Indent(out, depth);
}
WrapPrintF(out, "]");
break;
case CN_CBOR_MAP:
WrapPrintF(out, "{");
cbor2 = cbor->first_child;
// Determine the correct group - always assume it is at element UINT=1
group = 0;
for (i = 0; i < cbor->length; i+=2, cbor2 = cbor2->next->next) {
if ((cbor2->type == CN_CBOR_UINT) && (cbor2->v.uint == 1)) {
group = cbor2->next->v.uint;
break;
}
}
cbor2 = cbor->first_child;
// Dump each element
for (i = 0; i < cbor->length; i+=2, cbor2 = cbor2->next) {
pFoo2 = NULL;
if (pFOO != NULL) {
// Locate the right entry in foo
for (i2 = 0, pFoo2 = pFOO->children; i2 < pFOO->count; pFoo2++, i2 += 1) {
if (pFoo2->type != cbor2->type) continue;
switch (cbor2->type) {
case CN_CBOR_UINT:
if ((group != 0) && (pFoo2->group != 0) && (pFoo2->group != group)) continue;
if (pFoo2->value == cbor2->v.uint) i2 = pFOO->count + 1;
break;
case CN_CBOR_INT:
if ((group != 0) && (pFoo2->group != 0) && (pFoo2->group != group)) continue;
if (pFoo2->value == cbor2->v.sint) i2 = pFOO->count + 1;
break;
}
if (i2 == pFOO->count + 1) break;
}
if (i2 == pFOO->count) pFoo2 = NULL;
}
if (i != 0) WrapPrintF(out, ", ");
WrapPrintF(out, "\n");
Indent(out, depth + 1);
DumpTree(cbor2, out, pFoo2, depth + 1, true, false, fInComment);
WrapPrintF(out, ":");
cbor2 = cbor2->next;
DumpTree(cbor2, out, pFoo2, depth + 1, false, true, fInComment);
}
if (i > 0) {
WrapPrintF(out, "\n");
Indent(out, depth);
}
WrapPrintF(out, "}");
break;
case CN_CBOR_BYTES:
DumpBytes(out, cbor, depth);
if ((pFOO != NULL) && (pFOO->children != NULL)) {
const cn_cbor * cbor3 = cn_cbor_decode(cbor->v.bytes, cbor->length, NULL, NULL);
if (cbor3 != NULL) {
WrapPrintF(out, fInComment ? " \\ " : " / ");
DumpTree(cbor3, out, pFOO->children, depth+1, true, true, true);
WrapPrintF(out, fInComment ? " \\ " : " / ");
}
}
break;
case CN_CBOR_INT:
WrapPrintF(out, "%d", cbor->v.sint);
if (fValue && pFOO != NULL) {
for (i = 0, pFoo2 = pFOO->children; i < pFOO->count; i++, pFoo2++) {
if ((pFoo2->type == CN_CBOR_INT) && (pFoo2->value == cbor->v.sint)) {
if (pFoo2->fieldName != NULL) {
if (fInComment) WrapPrintF(out, " \\ %s \\", pFoo2->fieldName);
else WrapPrintF(out, " / %s /", pFoo2->fieldName);
}
break;
}
}
}
break;
case CN_CBOR_UINT:
WrapPrintF(out, "%u", cbor->v.uint);
if (fValue && (pFOO != NULL)) {
for (i = 0, pFoo2 = pFOO->children; i < pFOO->count; i++, pFoo2++) {
if ((pFoo2->type == CN_CBOR_UINT) && (pFoo2->value == cbor->v.uint)) {
if (pFoo2->fieldName != NULL) {
if (fInComment) WrapPrintF(out, " \\ %s \\", pFoo2->fieldName);
else WrapPrintF(out, " / %s /", pFoo2->fieldName);
}
break;
}
}
}
break;
case CN_CBOR_TEXT:
WrapPrintF(out, "\"");
for (i = 0; i < cbor->length; i++) {
if (fInComment && (cbor->v.str[i] == '/')) {
WrapPrintF(out, "%c", cbor->v.str[i]);
}
WrapPrintF(out, "%c", cbor->v.str[i]);
}
WrapPrintF(out, "\"");
break;
case CN_CBOR_TRUE:
WrapPrintF(out, "true");
break;
case CN_CBOR_FALSE:
WrapPrintF(out, "false");
break;
default:
WrapPrintF(out, "##");
break;
}
}
int main(int argc, char ** argv)
{
int i;
FILE * in = NULL;
FILE * out = NULL;
byte * pb = NULL;
size_t cb = 0;
byte rgb[2048];
size_t cbIn;
int forXML = false;
FOO * root = NULL;
for (i=1; i<argc; i++) {
if ((argv[i][0] == '-') || (argv[i][0] == '/')) {
if (strcmp(&argv[i][1], "someoption") == 0) {
}
else if (strcmp(&argv[i][1], "xml=yes") == 0) {
forXML = true;
}
else if (strcmp(&argv[i][1], "xml=no") == 0) forXML = false;
else if (strncmp(&argv[i][1], "wrap=", 5) == 0) {
WrapLineAt = atoi(&argv[i][6]);
}
else if (strncmp(&argv[i][1], "type=", 5) == 0) {
if (strcmp(&argv[i][1], "type=encrypt") == 0) root = &EncryptedMessage;
else if (strcmp(&argv[i][1], "type=envelope") == 0) root = &EnvelopedMessage;
else if (strcmp(&argv[i][1], "type=signed") == 0) root = &SignedMessage;
else if (strcmp(&argv[i][1], "type=mac") == 0) root = &MacMessage;
else if (strcmp(&argv[i][1], "type=mac0") == 0) root = &Mac0Message;
else if (strcmp(&argv[i][1], "type=keyset") == 0) root = &KeySet;
else if (strcmp(&argv[i][1], "type=key") == 0) root = &Key;
else PrintUsage();
}
else {
PrintUsage();
exit(1);
}
}
else {
if (in == NULL) {
in = fopen(argv[i], "rb");
if (in == NULL) {
fprintf(stderr, "Unable to open file '%s'\n", argv[i]);
exit(1);
}
}
else if (out == NULL) {
out = fopen(argv[i], "wt");
if (out == NULL) {
fprintf(stderr, "Unable to open file '%s'\n", argv[i]);
exit(1);
}
}
else {
PrintUsage();
exit(1);
}
}
}
// Set defaults
if (in == NULL) {
#ifdef _WIN32
in = stdin;
_setmode(_fileno(stdin), _O_BINARY);
#else
in = stdin; // fdreopen(_fileno(stdin), NULL, O_RDONLY | OPEN_O_BINARY);
#endif
}
if (out == NULL) out = stdout;
// Read the input to a buffer - needed for the parser
cbIn = 1;
while (cbIn > 0) {
cbIn = fread(rgb, 1, sizeof(rgb), in);
if (cbIn == 0) {
// finished
break;
}
pb = realloc(pb, cb+cbIn);
if (pb == NULL) {
fprintf(stderr, "Error allocating memory\n");
exit(1);
}
memcpy(pb+cb, rgb, cbIn);
cb += cbIn;
}
// Parse it
cn_cbor * cbor = cn_cbor_decode(pb, cb, NULL, NULL);
if (cbor == NULL) {
fprintf(stderr, "Error parsing CBOR");
exit(1);
}
if (root == NULL) {
if (cbor->type == CN_CBOR_TAG) {
switch (cbor->v.sint) {
case 991: root = &SignedMessageWithTag; break;
case 992: root = &EnvelopedMessageWithTag; break;
case 993: root = &EncryptedMessageWithTag; break;
case 994: root = &MacMessageWithTag; break;
case 997: root = &Mac0MessageWithTag; break;
}
}
}
if (forXML) {
fprintf(out, "<t>Size of binary file is %d bytes</t>\n\n", cb);
fprintf(out, "<figure><artwork type='CBORdiag'><![CDATA[\n");
}
DumpTree(cbor, out, root, 0, true, true, false);
WrapPrintF(out, "\n");
if (forXML) {
fprintf(out, "]]></artwork></figure>\n");
}
}