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sign_tool.cpp
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sign_tool.cpp
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/*
* Copyright (C) 2011-2021 Intel Corporation. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
// SignTool.cpp : Defines the entry point for the console application.
//
/**
* File:
* sign_tool.cpp
*Description:
* Defines the entry point for the application.
*
*/
#include "metadata.h"
#include "manage_metadata.h"
#include "parse_key_file.h"
#include "enclave_creator_sign.h"
#include "util_st.h"
#include "se_trace.h"
#include "sgx_error.h"
#include "se_version.h"
#include "se_map.h"
#include "loader.h"
#include "parserfactory.h"
#include "elf_helper.h"
#include "crypto_wrapper.h"
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <assert.h>
#include <string>
#include <memory>
#include <sstream>
#define REL_ERROR_BIT 0x1
#define INIT_SEC_ERROR_BIT 0x2
#define RESIGN_BIT 0x4
#define FIPS_BIT 0x8
#define IGNORE_REL_ERROR(x) (((x) & REL_ERROR_BIT) != 0)
#define IGNORE_INIT_SEC_ERROR(x) (((x) & INIT_SEC_ERROR_BIT) != 0)
#define ENABLE_RESIGN(x) (((x) & RESIGN_BIT) != 0)
#define ENABLE_FIPS(x) (((x) & FIPS_BIT) != 0)
typedef enum _file_path_t
{
DLL = 0,
XML = 1,
KEY,
OUTPUT,
SIG,
UNSIGNED,
DUMPFILE,
CSSFILE
} file_path_t;
static int load_enclave(BinParser *parser, metadata_t *metadata)
{
std::unique_ptr<CLoader> ploader(new CLoader(const_cast<uint8_t *>(parser->get_start_addr()), *parser));
int ret = ploader->load_enclave_ex(NULL, 0, metadata, NULL, 0, NULL);
delete parser;
return ret;
}
#define THE_INVALID_HANDLE (-1)
static int open_file(const char* dllpath)
{
return open(dllpath, O_RDONLY);
}
static void close_handle(int fd)
{
close(fd);
}
static bool get_enclave_info(BinParser *parser, bin_fmt_t *bf, uint64_t * meta_offset, bool is_dump_mode = false, bool resign_flag = false)
{
uint64_t meta_rva = parser->get_metadata_offset();
const uint8_t *base_addr = parser->get_start_addr();
metadata_t *metadata = GET_PTR(metadata_t, base_addr, meta_rva);
if(metadata->magic_num == METADATA_MAGIC && is_dump_mode == false && resign_flag == false)
{
se_trace(SE_TRACE_ERROR, ENCLAVE_ALREADY_SIGNED_ERROR);
return false;
}
*bf = parser->get_bin_format();
*meta_offset = meta_rva;
return true;
}
// measure_enclave():
// 1. Get the enclave hash by loading enclave
// 2. Get the enclave info - metadata offset and enclave file format
static bool measure_enclave(uint8_t *hash, const char *dllpath, const xml_parameter_t *parameter, uint32_t option_flag_bits, metadata_t *metadata, uint64_t *meta_offset, uint8_t *meta_versions)
{
assert(hash && dllpath && metadata && meta_offset && meta_versions);
bool res = false;
off_t file_size = 0;
uint64_t quota = 0;
bin_fmt_t bin_fmt = BF_UNKNOWN;
se_file_handle_t fh = open_file(dllpath);
if (fh == THE_INVALID_HANDLE)
{
se_trace(SE_TRACE_ERROR, OPEN_FILE_ERROR, dllpath);
return false;
}
// Probably we can use `decltype' if all major supported compilers support that.
std::unique_ptr<map_handle_t, void (*)(map_handle_t*)> mh(map_file(fh, &file_size), unmap_file);
if (!mh)
{
close_handle(fh);
return false;
}
// Parse enclave
std::unique_ptr<BinParser> parser(binparser::get_parser(mh->base_addr, (size_t)file_size));
assert(parser != NULL);
sgx_status_t status = parser->run_parser();
if (status != SGX_SUCCESS)
{
se_trace(SE_TRACE_ERROR, INVALID_ENCLAVE_ERROR);
close_handle(fh);
return false;
}
if(parser->has_init_section() && IGNORE_INIT_SEC_ERROR(option_flag_bits) == false)
{
se_trace(SE_TRACE_ERROR, INIT_SEC_ERROR);
close_handle(fh);
return false;
}
// generate metadata
CMetadata meta(metadata, parser.get(), ENABLE_FIPS(option_flag_bits));
if(meta.build_metadata(parameter) == false)
{
close_handle(fh);
return false;
}
// get the versions of metadata we need to output
*meta_versions = meta.get_meta_versions();
// Collect enclave info
if(get_enclave_info(parser.get(), &bin_fmt, meta_offset, false, ENABLE_RESIGN(option_flag_bits)) == false)
{
close_handle(fh);
return false;
}
bool no_rel = false;
if (bin_fmt == BF_ELF64)
{
no_rel = ElfHelper<64>::dump_textrels(parser.get());
}
else
{
no_rel = ElfHelper<32>::dump_textrels(parser.get());
}
if(no_rel == false && (IGNORE_REL_ERROR(option_flag_bits) == false))
{
close_handle(fh);
se_trace(SE_TRACE_ERROR, TEXT_REL_ERROR);
return false;
}
// Load enclave to get enclave hash
int ret = load_enclave(parser.release(), metadata);
close_handle(fh);
switch(ret)
{
case SGX_ERROR_INVALID_METADATA:
se_trace(SE_TRACE_ERROR, OUT_OF_EPC_ERROR);
res = false;
break;
case SGX_ERROR_INVALID_VERSION:
se_trace(SE_TRACE_ERROR, META_VERSION_ERROR);
res = false;
break;
case SGX_ERROR_INVALID_ENCLAVE:
se_trace(SE_TRACE_ERROR, INVALID_ENCLAVE_ERROR);
res = false;
break;
case SGX_SUCCESS:
ret = static_cast<EnclaveCreatorST*>(get_enclave_creator())->get_enclave_info(hash, SGX_HASH_SIZE, "a);
if(ret != SGX_SUCCESS)
{
res = false;
break;
}
SE_TRACE_DEBUG("\n");
se_trace(SE_TRACE_ERROR, REQUIRED_ENCLAVE_SIZE, quota);
se_trace(SE_TRACE_ERROR, "The required memory is 0x%llx, %llu KB.\n", quota, quota/1024);
res = true;
break;
default:
res = false;
break;
}
return res;
}
//fill_enclave_css()
// fill the enclave_css_t structure with enclave_hash
// If the 'rsa' is not null, fill the key part
// If the path[UNSIGNED] != NULL, update the header.date(CATSIG mode)
static bool fill_enclave_css(const EVP_PKEY *pkey, const char **path,
const uint8_t *enclave_hash, enclave_css_t *css)
{
assert(enclave_hash != NULL && path != NULL && css != NULL);
//if pkey is not NULL, fill the public key part
if(pkey)
{
BIGNUM *e = NULL, *n = NULL;
rsa_get_bn((EVP_PKEY*)pkey, &n, &e, NULL);
//RSA_get0_key(rsa, &n, &e, NULL);
int exponent_size = BN_num_bytes(e);
int modulus_size = BN_num_bytes(n);
if(modulus_size > SE_KEY_SIZE)
{
rsa_free_bn(n, e, NULL);
return false;
}
unsigned char *modulus = (unsigned char *)malloc(SE_KEY_SIZE);
if(modulus == NULL)
{rsa_free_bn(n, e, NULL);
return false;
}
memset(modulus, 0, SE_KEY_SIZE);
exponent_size = (uint32_t)(ROUND_TO(exponent_size, sizeof(uint32_t)) / sizeof(uint32_t));
modulus_size = (uint32_t)(ROUND_TO(modulus_size, sizeof(uint32_t)) / sizeof(uint32_t));
if(exponent_size != 0x1 || modulus_size != 0x60)
{
rsa_free_bn(n, e, NULL);
free(modulus);
return false;
}
if(BN_bn2bin(n, modulus) != SE_KEY_SIZE)
{
rsa_free_bn(n, e, NULL);
free(modulus);
return false;
}
if(BN_bn2bin(e, (unsigned char *)&css->key.exponent) != 1)
{
rsa_free_bn(n, e, NULL);
free(modulus);
return false;
}
rsa_free_bn(n, e, NULL);
for(unsigned int i = 0; i < SE_KEY_SIZE; i++)
{
css->key.modulus[i] = modulus[SE_KEY_SIZE -i - 1];
}
free(modulus);
assert(css->key.exponent[0] == 0x03);
}
// fill the enclave hash
memcpy_s(&css->body.enclave_hash, sizeof(css->body.enclave_hash), enclave_hash, SGX_HASH_SIZE);
if(path[UNSIGNED] != NULL)
{
// In catsig mode, update the header.date as the time when the unsigned file is generated.
enclave_css_t enclave_css;
memset(&enclave_css, 0, sizeof(enclave_css));
size_t fsize = get_file_size(path[UNSIGNED]);
if(fsize != sizeof(enclave_css.header) + sizeof(enclave_css.body))
{
se_trace(SE_TRACE_ERROR, UNSIGNED_FILE_ERROR, path[UNSIGNED]);
return false;
}
uint8_t *buf = new uint8_t[fsize];
memset(buf, 0, fsize);
if(read_file_to_buf(path[UNSIGNED], buf, fsize) == false)
{
se_trace(SE_TRACE_ERROR, READ_FILE_ERROR, path[UNSIGNED]);
delete [] buf;
return false;
}
memcpy_s(&enclave_css.header, sizeof(enclave_css.header), buf, sizeof(enclave_css.header));
memcpy_s(&enclave_css.body, sizeof(enclave_css.body), buf + sizeof(enclave_css.header), fsize - sizeof(enclave_css.header));
delete [] buf;
css->header.date = enclave_css.header.date;
// Verify the header and body read from the unsigned file to make sure it's the same as that generated from xml file
if(memcmp(&enclave_css.header, &css->header, sizeof(enclave_css.header)) || memcmp(&enclave_css.body, &css->body, sizeof(enclave_css.body)))
{
se_trace(SE_TRACE_ERROR, UNSIGNED_FILE_XML_MISMATCH);
return false;
}
}
return true;
}
static bool calc_RSAq1q2(int length_s, const uint8_t *data_s, int length_m, const uint8_t *data_m,
uint8_t *data_q1, uint8_t *data_q2)
{
assert(data_s && data_m && data_q1 && data_q2);
bool ret = false;
BIGNUM *ptemp1=NULL, *ptemp2=NULL, *pQ1=NULL, *pQ2=NULL, *pM=NULL, *pS = NULL;
unsigned char *q1 = NULL, *q2= NULL;
BN_CTX *ctx = NULL;
do{
if((ptemp1 = BN_new()) == NULL)
break;
if((ptemp2 = BN_new()) == NULL)
break;
if((pQ1 = BN_new()) == NULL)
break;
if((pQ2 = BN_new()) == NULL)
break;
if((pM = BN_new()) == NULL)
break;
if((pS = BN_new()) == NULL)
break;
if(BN_bin2bn((const unsigned char *)data_m, length_m, pM) == NULL)
break;
if(BN_bin2bn((const unsigned char *)data_s, length_s, pS) == NULL)
break;
if((ctx = BN_CTX_new()) == NULL)
break;
//q1 = floor(signature*signature/modulus)
//q2 = floor((signature*signature.signature - q1*signature*Modulus)/Modulus)
if(BN_mul(ptemp1, pS, pS, ctx) != 1)
break;
if(BN_div(pQ1, ptemp2, ptemp1, pM, ctx) !=1)
break;
if(BN_mul(ptemp1, pS, ptemp2, ctx) !=1)
break;
if(BN_div(pQ2, ptemp2, ptemp1, pM, ctx) !=1)
break;
int q1_len = BN_num_bytes(pQ1);
int q2_len = BN_num_bytes(pQ2);
if((q1 = (unsigned char *)malloc(q1_len)) == NULL)
break;
if((q2 = (unsigned char *)malloc(q2_len)) == NULL)
break;
if(q1_len != BN_bn2bin(pQ1, (unsigned char *)q1))
break;
if(q2_len != BN_bn2bin(pQ2, (unsigned char *)q2))
break;
int size_q1 = (q1_len < SE_KEY_SIZE) ? q1_len : SE_KEY_SIZE;
int size_q2 = (q2_len < SE_KEY_SIZE) ? q2_len : SE_KEY_SIZE;
for(int i = 0; i < size_q1; i++)
{
data_q1[i] = q1[size_q1 - i -1];
}
for(int i = 0; i < size_q2; i++)
{
data_q2[i] = q2[size_q2 - i -1];
}
ret = true;
}while(0);
if(q1)
free(q1);
if(q2)
free(q2);
if(ptemp1)
BN_clear_free(ptemp1);
if(ptemp2)
BN_clear_free(ptemp2);
if(pQ1)
BN_clear_free(pQ1);
if(pQ2)
BN_clear_free(pQ2);
if(pS)
BN_clear_free(pS);
if(pM)
BN_clear_free(pM);
if(ctx)
BN_CTX_free(ctx);
return ret;
}
static bool create_fips_signature(metadata_t *metadata)
{
assert(metadata != NULL);
extend_entry_fips_sig_t *sig = (extend_entry_fips_sig_t *)get_extend_entry_by_ID(metadata, EXTEND_ENTRY_ID_FIPS_SIG);
if(NULL == sig) // FIPS signature is not needed
{
return true;
}
// create key
const uint32_t e = 65537;
void *pkey = create_rsa_key_pair(SE_KEY_SIZE, e);
if(pkey == NULL)
{
return false;
}
// sign enclave css data
uint8_t signature[SIGNATURE_SIZE];
memset(signature, 0, SIGNATURE_SIZE);
if(false == create_rsa3072_signature(pkey, (const uint8_t *)&metadata->enclave_css, sizeof(metadata->enclave_css), signature, SIGNATURE_SIZE))
{
free_rsa_key(pkey);
return false;
}
memcpy_s(sig->signature, sizeof(sig->signature), signature, SIGNATURE_SIZE);
// fill in public key
if(false == get_rsa_pub_key(pkey, sig->modulus, sig->exponent))
{
free_rsa_key(pkey);
return false;
}
free_rsa_key(pkey);
return true;
}
static bool create_css_signature(const EVP_PKEY *pkey, const char *sigpath, enclave_css_t *enclave_css)
{
assert(enclave_css != NULL);
assert(!(pkey == NULL && sigpath == NULL) && !(pkey != NULL && sigpath != NULL));
uint8_t signature[SIGNATURE_SIZE]; // keep the signature in big endian
memset(signature, 0, SIGNATURE_SIZE);
//**********get the signature*********//
if(sigpath != NULL)//CATSIG mode
{
if(get_file_size(sigpath) != SIGNATURE_SIZE)
{
se_trace(SE_TRACE_ERROR, SIG_FILE_ERROR, sigpath);
return false;
}
if(read_file_to_buf(sigpath, signature, SIGNATURE_SIZE) == false)
{
se_trace(SE_TRACE_ERROR, READ_FILE_ERROR, sigpath);
return false;
}
}
else //SIGN mode
{
size_t buffer_size = sizeof(enclave_css->header) + sizeof(enclave_css->body);
uint8_t * temp_buffer = (uint8_t *)malloc(buffer_size * sizeof(char));
if(NULL == temp_buffer)
{
se_trace(SE_TRACE_ERROR, NO_MEMORY_ERROR);
return false;
}
memcpy_s(temp_buffer, buffer_size, &enclave_css->header, sizeof(enclave_css->header));
memcpy_s(temp_buffer + sizeof(enclave_css->header), buffer_size - sizeof(enclave_css->header),
&enclave_css->body, sizeof(enclave_css->body));
if(false == create_rsa3072_signature((void *)pkey, temp_buffer, (uint32_t)buffer_size, signature, SIGNATURE_SIZE))
{
free(temp_buffer);
return false;
}
free(temp_buffer);
}
for(int i = 0; i<SIGNATURE_SIZE; i++)
{
(enclave_css->key.signature)[i] = signature[SIGNATURE_SIZE-1-i];
}
//************************calculate q1 and q2*********************//
uint8_t modulus[SE_KEY_SIZE];
for(int i = 0; i<SE_KEY_SIZE; i++)
{
modulus[i] = enclave_css->key.modulus[SE_KEY_SIZE-1-i];
}
bool res = calc_RSAq1q2(sizeof(enclave_css->key.signature),
(const uint8_t *)signature,
sizeof(enclave_css->key.modulus),
(const uint8_t *)modulus,
(uint8_t *)enclave_css->buffer.q1,
(uint8_t *)enclave_css->buffer.q2);
return res;
}
static bool verify_css_signature(const EVP_PKEY *pkey, const enclave_css_t *enclave_css)
{
assert(pkey != NULL && enclave_css != NULL);
size_t buffer_size = sizeof(enclave_css->header) + sizeof(enclave_css->body);
uint8_t *temp_buffer = (uint8_t *)malloc(buffer_size * sizeof(char));
if(NULL == temp_buffer)
{
se_trace(SE_TRACE_ERROR, NO_MEMORY_ERROR);
return false;
}
memcpy_s(temp_buffer, buffer_size, &enclave_css->header, sizeof(enclave_css->header));
memcpy_s(temp_buffer + sizeof(enclave_css->header), buffer_size-sizeof(enclave_css->header),
&enclave_css->body, sizeof(enclave_css->body));
uint8_t signature[SIGNATURE_SIZE];
for(int i=0; i<SIGNATURE_SIZE; i++)
{
signature[i] = enclave_css->key.signature[SIGNATURE_SIZE-1-i];
}
if(false == verify_rsa3072_signature((void *)pkey, (const uint8_t *)temp_buffer, (uint32_t) buffer_size, signature, SIGNATURE_SIZE))
{
free(temp_buffer);
return false;
}
free(temp_buffer);
return true;
}
static bool gen_enclave_signing_file(const enclave_css_t *enclave_css, const char *outpath)
{
assert(enclave_css != NULL);
size_t size = sizeof(enclave_css->header) + sizeof(enclave_css->body);
uint8_t *buffer = (uint8_t *)malloc(size);
if(buffer == NULL)
{
se_trace(SE_TRACE_ERROR, NO_MEMORY_ERROR);
return false;
}
memcpy_s(buffer, sizeof(enclave_css->header), &enclave_css->header, sizeof(enclave_css->header));
memcpy_s(buffer + sizeof(enclave_css->header), sizeof(enclave_css->body), &enclave_css->body, sizeof(enclave_css->body));
if(write_data_to_file(outpath, std::ios::out|std::ios::binary, buffer, size) == false)
{
free(buffer);
return false;
}
free(buffer);
return true;
}
static bool cmdline_parse(unsigned int argc, char *argv[], int *mode, const char **path, uint32_t *option_flag_bits)
{
assert(mode!=NULL && path != NULL);
if(argc<2)
{
se_trace(SE_TRACE_ERROR, LACK_PARA_ERROR);
return false;
}
if(argc == 2 && !STRCMP(argv[1], "-help"))
{
se_trace(SE_TRACE_ERROR, USAGE_STRING);
*mode = -1;
return true;
}
if(argc == 2 && !STRCMP(argv[1], "-version"))
{
se_trace(SE_TRACE_ERROR, VERSION_STRING, STRFILEVER, COPYRIGHT);
*mode = -1;
return true;
}
enum { PAR_REQUIRED, PAR_OPTIONAL, PAR_INVALID };
typedef struct _param_struct_{
const char *name; //options
char *value; //keep the path
int flag; //indicate this parameter is required(0), optional(1) or invalid(2)
}param_struct_t; //keep the parameter pairs
param_struct_t params_sign[] = {
{"-enclave", NULL, PAR_REQUIRED},
{"-config", NULL, PAR_OPTIONAL},
{"-key", NULL, PAR_REQUIRED},
{"-out", NULL, PAR_REQUIRED},
{"-sig", NULL, PAR_INVALID},
{"-unsigned", NULL, PAR_INVALID},
{"-dumpfile", NULL, PAR_OPTIONAL},
{"-cssfile", NULL, PAR_OPTIONAL}};
param_struct_t params_gendata[] = {
{"-enclave", NULL, PAR_REQUIRED},
{"-config", NULL, PAR_OPTIONAL},
{"-key", NULL, PAR_INVALID},
{"-out", NULL, PAR_REQUIRED},
{"-sig", NULL, PAR_INVALID},
{"-unsigned", NULL, PAR_INVALID},
{"-dumpfile", NULL, PAR_INVALID},
{"-cssfile", NULL, PAR_INVALID}};
param_struct_t params_catsig[] = {
{"-enclave", NULL, PAR_REQUIRED},
{"-config", NULL, PAR_OPTIONAL},
{"-key", NULL, PAR_REQUIRED},
{"-out", NULL, PAR_REQUIRED},
{"-sig", NULL, PAR_REQUIRED},
{"-unsigned", NULL, PAR_REQUIRED},
{"-dumpfile", NULL, PAR_OPTIONAL},
{"-cssfile", NULL, PAR_OPTIONAL}};
param_struct_t params_dump[] = {
{"-enclave", NULL, PAR_REQUIRED},
{"-config", NULL, PAR_INVALID},
{"-key", NULL, PAR_INVALID},
{"-out", NULL, PAR_INVALID},
{"-sig", NULL, PAR_INVALID},
{"-unsigned", NULL, PAR_INVALID},
{"-dumpfile", NULL, PAR_REQUIRED},
{"-cssfile", NULL, PAR_OPTIONAL}};
const char *mode_m[] ={"sign", "gendata","catsig", "dump"};
param_struct_t *params[] = {params_sign, params_gendata, params_catsig, params_dump};
unsigned int tempidx=0;
for(; tempidx<sizeof(mode_m)/sizeof(mode_m[0]); tempidx++)
{
if(!STRCMP(mode_m[tempidx], argv[1]))//match
{
break;
}
}
unsigned int tempmode = tempidx;
if(tempmode>=sizeof(mode_m)/sizeof(mode_m[0]))
{
se_trace(SE_TRACE_ERROR, UNREC_CMD_ERROR, argv[1]);
return false;
}
uint32_t pf_bits = 0;
// The struct used to record the options which don't need a path
typedef struct _para_flag_map_t
{
const char* para_str;
int flag_bit;
} para_flag_map_t;
para_flag_map_t pfm[] =
{
{"-ignore-rel-error", REL_ERROR_BIT},
{"-ignore-init-sec-error", INIT_SEC_ERROR_BIT},
{"-resign", RESIGN_BIT},
{"-enable-fips", FIPS_BIT}
};
unsigned int params_count = (unsigned)(sizeof(params_sign)/sizeof(params_sign[0]));
for(unsigned int i=2; i<argc; i++)
{
unsigned int idx = 0;
for(; idx < sizeof(pfm)/sizeof(pfm[0]); idx++)
{
if(!STRCMP(argv[i], pfm[idx].para_str))
{
if((pf_bits & pfm[idx].flag_bit) != 0)
{
se_trace(SE_TRACE_ERROR, REPEAT_OPTION_ERROR, argv[i]);
return false;
}
pf_bits |= pfm[idx].flag_bit;
break;
}
}
if(idx != sizeof(pfm)/sizeof(pfm[0]))
{
continue;
}
unsigned int j=0;
for(; j<params_count; j++)
{
if(STRCMP(argv[i], params[tempmode][j].name)==0) //match
{
if((i<argc-1)&&(STRNCMP(argv[i+1],"-", 1))) // assuming pathname doesn't contain "-"
{
if(params[tempmode][j].value != NULL)
{
se_trace(SE_TRACE_ERROR, REPEAT_OPTION_ERROR, params[tempmode][j].name);
return false;
}
params[tempmode][j].value = argv[i+1];
i++;
break;
}
else //didn't match: 1) no path parameter behind option parameter 2) parameters format error.
{
se_trace(SE_TRACE_ERROR, INVALID_FILE_NAME_ERROR, params[tempmode][j].name);
return false;
}
}
}
if(j == params_count)
{
se_trace(SE_TRACE_ERROR, UNREC_OPTION_ERROR, argv[i]);
return false;
}
}
for(unsigned int i = 0; i < params_count; i++)
{
if(params[tempmode][i].flag == PAR_REQUIRED && params[tempmode][i].value == NULL)
{
se_trace(SE_TRACE_ERROR, LACK_REQUIRED_OPTION_ERROR, params[tempmode][i].name, mode_m[tempmode]);
return false;
}
if(params[tempmode][i].flag == PAR_INVALID && params[tempmode][i].value != NULL)
{
se_trace(SE_TRACE_ERROR, GIVE_INVALID_OPTION_ERROR, params[tempmode][i].name, mode_m[tempmode]);
return false;
}
}
if(STRCMP(mode_m[tempmode], "dump") == 0 && ENABLE_RESIGN(pf_bits))
{
// No need to set option '-resign' for dump command
se_trace(SE_TRACE_ERROR, GIVE_INVALID_OPTION_ERROR, "-resign", mode_m[tempmode]);
return false;
}
for(unsigned int i = 0; i < params_count-1; i++)
{
if(params[tempmode][i].value == NULL)
continue;
for(unsigned int j=i+1; j < params_count; j++)
{
if(params[tempmode][j].value == NULL)
continue;
if(strlen(params[tempmode][i].value) == strlen(params[tempmode][j].value) &&
!STRNCMP(params[tempmode][i].value, params[tempmode][j].value, strlen(params[tempmode][i].value)))
{
se_trace(SE_TRACE_ERROR, DUPLICATED_FILE_NAME_ERROR, params[tempmode][i].name, params[tempmode][j].name);
return false;
}
}
}
// Set output parameters
for(unsigned int i = 0; i < params_count; i++)
{
path[i] = params[tempmode][i].value;
}
*mode = tempmode;
*option_flag_bits = pf_bits;
return true;
}
//generate_output:
// To generate the final output file
// SIGN- need to fill the enclave_css_t(key part included), sign the header and body and
// update the metadata in the out file
// GENDATA- need to fill the enclave_css_t(key part excluded), get the body and header,
// and then write the whole out file with body+header+hash
// CATSIG- need to fill the enclave_css_t(include key), read the signature from the sigpath,
// and then update the metadata in the out file
static bool generate_output(int mode, int ktype, const uint8_t *enclave_hash, const EVP_PKEY *pkey, metadata_t *metadata,
const char **path)
{
assert(enclave_hash != NULL && metadata != NULL && path != NULL);
switch(mode)
{
case SIGN:
{
if(ktype != PRIVATE_KEY || !pkey)
{
se_trace(SE_TRACE_ERROR, LACK_PRI_KEY_ERROR);
return false;
}
if(false == fill_enclave_css(pkey, path, enclave_hash, &(metadata->enclave_css)))
{
return false;
}
if(false == create_css_signature(pkey, NULL, &(metadata->enclave_css)))
{
return false;
}
break;
}
case GENDATA:
{
if(false == fill_enclave_css(NULL, path, enclave_hash, &(metadata->enclave_css)))
{
return false;
}
if(false == gen_enclave_signing_file(&(metadata->enclave_css), path[OUTPUT]))
{
return false;
}
break;
}
case CATSIG:
{
if(ktype != PUBLIC_KEY || !pkey)
{
se_trace(SE_TRACE_ERROR, LACK_PUB_KEY_ERROR);
return false;
}
if(false == fill_enclave_css(pkey, path, enclave_hash, &(metadata->enclave_css)))
{
return false;
}
if(false == create_css_signature(NULL, path[SIG], &(metadata->enclave_css)))
{
return false;
}
break;
}
default:
{
return false;
}
}
return true;
}
#include "se_page_attr.h"
/*
* Dump layout information available in the metadata
*/
static bool dump_metadata_layout(metadata_t * metadata)
{
layout_entry_t *start = NULL;
layout_entry_t *end = NULL;
uint32_t size = 0;
uint16_t entry_id = 0;
uint16_t entry_cnt = 0;
do {
if (metadata->magic_num != METADATA_MAGIC || metadata->size == 0)
break;
size += metadata->size;
if (size < metadata->size) {
return false;
}
else {
SE_TRACE_DEBUG("\n");
se_trace(SE_TRACE_DEBUG, "\tMetadata Version = 0x%016llX\n", metadata->version);
start = GET_PTR(layout_entry_t, metadata, metadata->dirs[DIR_LAYOUT].offset);
end = GET_PTR(layout_entry_t, start, metadata->dirs[DIR_LAYOUT].size);
entry_cnt = 0;
for (layout_entry_t *layout = start; layout < end; layout++)
{
entry_id = layout->id;
if (!IS_GROUP_ID(entry_id)) {
se_trace(SE_TRACE_DEBUG, "\tEntry Id(%2u) = %4u, %-16s, ", entry_cnt++, entry_id, layout_id_str[entry_id]);
se_trace(SE_TRACE_DEBUG, "Page Count = %5u, ", layout->page_count);
se_trace(SE_TRACE_DEBUG, "Attributes = 0x%02X, ", layout->attributes);
se_trace(SE_TRACE_DEBUG, "Flags = 0x%016llX, ", layout->si_flags);
se_trace(SE_TRACE_DEBUG, "RVA = 0x%016llX --- 0x%016llX\n", layout->rva, layout->rva + 4096 * layout->page_count);
}
else {
layout_group_t *layout_grp = reinterpret_cast<layout_group_t*>(layout);
se_trace(SE_TRACE_DEBUG, "\tEntry Id(%2u) = %4u, %-16s, ", entry_cnt++, entry_id, layout_id_str[entry_id & ~(GROUP_FLAG)]);
se_trace(SE_TRACE_DEBUG, "Entry Count = %4u, ", layout_grp->entry_count);
se_trace(SE_TRACE_DEBUG, "Load Times = %u, ", layout_grp->load_times);
se_trace(SE_TRACE_DEBUG, "LStep = 0x%016llX\n", layout_grp->load_step);
}
}
}
metadata = (metadata_t *)((size_t)metadata + metadata->size);
} while (size < METADATA_SIZE);
return true;
}
/*
* We need to add the RSRV layout back at the end.
*/
static bool metadata_add_layout(metadata_t *metadata, layout_t * min_layout_to_add, layout_t * init_layout_to_add, layout_t * max_layout_to_add)
{
uint32_t size = 0;
void * start = GET_PTR(void *, metadata, metadata->dirs[DIR_LAYOUT].offset);
void * end = NULL;
layout_entry_t * layout = NULL;
uint16_t entry_id = 0;
if (min_layout_to_add)
{
size = metadata->size;
end = GET_PTR(void *, start, metadata->dirs[DIR_LAYOUT].size);
if (memcpy_s(end, METADATA_SIZE - size, min_layout_to_add, sizeof(layout_t))) {
se_trace(SE_TRACE_WARNING, "%s: Error memcpy_s failed\n", __FUNCTION__);
return false;
}
metadata->size += (uint32_t)sizeof(layout_t);
metadata->dirs[DIR_LAYOUT].size += (uint32_t)sizeof(layout_t);
layout = (layout_entry_t *)min_layout_to_add;
entry_id = layout->id;
SE_TRACE_DEBUG("\n");
if (!IS_GROUP_ID(entry_id)) {
se_trace(SE_TRACE_DEBUG, "\tEntry Id(%2u) = %4u, %-16s, ", 0, entry_id, layout_id_str[entry_id]);
se_trace(SE_TRACE_DEBUG, "Page Count = %5u, ", layout->page_count);
se_trace(SE_TRACE_DEBUG, "Attributes = 0x%02X, ", layout->attributes);
se_trace(SE_TRACE_DEBUG, "Flags = 0x%016llX, ", layout->si_flags);
se_trace(SE_TRACE_DEBUG, "RVA = 0x%016llX --- 0x%016llX\n", layout->rva, layout->rva + 4096 * layout->page_count);
}
else {
layout_group_t *layout_grp = reinterpret_cast<layout_group_t*>(layout);
se_trace(SE_TRACE_DEBUG, "\tEntry Id(%2u) = %4u, %-16s, ", 0, entry_id, layout_id_str[entry_id & ~(GROUP_FLAG)]);
se_trace(SE_TRACE_DEBUG, "Entry Count = %4u, ", layout_grp->entry_count);
se_trace(SE_TRACE_DEBUG, "Load Times = %u, ", layout_grp->load_times);
se_trace(SE_TRACE_DEBUG, "LStep = 0x%016llX\n", layout_grp->load_step);
}
}
if (init_layout_to_add)
{
// Remove the PAGE_ATTR_POST_ADD attribute so that a dynamic
// range isn't created during enclave loading time.
init_layout_to_add->entry.attributes &= (uint16_t)(~PAGE_ATTR_POST_ADD);
size = metadata->size;
end = GET_PTR(void *, start, metadata->dirs[DIR_LAYOUT].size);
if (memcpy_s(end, METADATA_SIZE - size, init_layout_to_add, sizeof(layout_t))) {
se_trace(SE_TRACE_WARNING, "%s: Error memcpy_s failed\n", __FUNCTION__);
return false;
}
metadata->size += (uint32_t)sizeof(layout_t);
metadata->dirs[DIR_LAYOUT].size += (uint32_t)sizeof(layout_t);
layout = (layout_entry_t *)init_layout_to_add;
entry_id = layout->id;
SE_TRACE_DEBUG("\n");
if (!IS_GROUP_ID(entry_id)) {
se_trace(SE_TRACE_DEBUG, "\tEntry Id(%2u) = %4u, %-16s, ", 0, entry_id, layout_id_str[entry_id]);
se_trace(SE_TRACE_DEBUG, "Page Count = %5u, ", layout->page_count);
se_trace(SE_TRACE_DEBUG, "Attributes = 0x%02X, ", layout->attributes);
se_trace(SE_TRACE_DEBUG, "Flags = 0x%016llX, ", layout->si_flags);
se_trace(SE_TRACE_DEBUG, "RVA = 0x%016llX --- 0x%016llX\n", layout->rva, layout->rva + 4096 * layout->page_count);
}
else {
layout_group_t *layout_grp = reinterpret_cast<layout_group_t*>(layout);
se_trace(SE_TRACE_DEBUG, "\tEntry Id(%2u) = %4u, %-16s, ", 0, entry_id, layout_id_str[entry_id & ~(GROUP_FLAG)]);
se_trace(SE_TRACE_DEBUG, "Entry Count = %4u, ", layout_grp->entry_count);
se_trace(SE_TRACE_DEBUG, "Load Times = %u, ", layout_grp->load_times);
se_trace(SE_TRACE_DEBUG, "LStep = 0x%016llX\n", layout_grp->load_step);
}
}
if (max_layout_to_add)
{
// Modify LAYOUT_ID_RSRV_MAX so that it isn't included in the
// MRENCLAVE. Remove the PAGE_ATTR_POST_ADD attribute so that a
// dynamic range isn't created during enclave loading time.
max_layout_to_add->entry.si_flags = SI_FLAG_NONE;
max_layout_to_add->entry.attributes &= (uint16_t)(~PAGE_ATTR_POST_ADD);
size = metadata->size;
end = GET_PTR(void *, start, metadata->dirs[DIR_LAYOUT].size);
if (memcpy_s(end, METADATA_SIZE - size, max_layout_to_add, sizeof(layout_t))) {
se_trace(SE_TRACE_WARNING, "%s: Error memcpy_s failed\n", __FUNCTION__);
return false;
}
metadata->size += (uint32_t)sizeof(layout_t);
metadata->dirs[DIR_LAYOUT].size += (uint32_t)sizeof(layout_t);
layout = (layout_entry_t *)max_layout_to_add;