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stb: create-container and wrap skiboot in Secure/Trusted Boot container
We produce **UNSIGNED** skiboot.lid.stb and skiboot.lid.xz.stb as build artifacts These are suitable blobs for flashing onto Trusted Boot enabled op-build builds *WITH* the secure boot jumpers *ON* (i.e. *NOT* in secure mode). It's just enough of the Secure and Trusted Boot container format to make Hostboot behave. Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com> Tested-by: Gavin Shan <gwshan@linux.vnet.ibm.com> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
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/* Copyright 2013-2016 IBM Corp. | ||
* | ||
* 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. | ||
*/ | ||
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#include <config.h> | ||
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#include <stdbool.h> | ||
#include <types.h> | ||
#include "container.h" | ||
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#include <stdio.h> | ||
#include <stdlib.h> | ||
#include <getopt.h> | ||
#include <unistd.h> | ||
#include <string.h> | ||
#include <errno.h> | ||
#include <sys/types.h> | ||
#include <sys/stat.h> | ||
#include <sys/mman.h> | ||
#include <fcntl.h> | ||
#include <assert.h> | ||
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int main(int argc, char* argv[]) | ||
{ | ||
int fdin, fdout; | ||
void *container = malloc(SECURE_BOOT_HEADERS_SIZE); | ||
struct stat s; | ||
char *buf = malloc(4096); | ||
off_t l; | ||
void *infile; | ||
int r; | ||
ROM_container_raw *c = (ROM_container_raw*)container; | ||
ROM_prefix_header_raw *ph; | ||
ROM_prefix_data_raw *pd; | ||
ROM_sw_header_raw *swh; | ||
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memset(container, 0, SECURE_BOOT_HEADERS_SIZE); | ||
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if (argc<3) | ||
return -1; | ||
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fdin = open(argv[1], O_RDONLY); | ||
assert(fdin > 0); | ||
r = fstat(fdin, &s); | ||
assert(r==0); | ||
infile = mmap(NULL, s.st_size, PROT_READ, 0, fdin, 0); | ||
assert(infile); | ||
fdout = open(argv[2], O_WRONLY|O_CREAT|O_TRUNC, S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH); | ||
assert(fdout > 0); | ||
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c->magic_number = cpu_to_be32(ROM_MAGIC_NUMBER); | ||
c->version = 1; | ||
c->container_size = cpu_to_be64(SECURE_BOOT_HEADERS_SIZE + s.st_size); | ||
c->target_hrmor = 0; | ||
c->stack_pointer = 0; | ||
memset(c->hw_pkey_a, 0, sizeof(ecc_key_t)); | ||
memset(c->hw_pkey_b, 0, sizeof(ecc_key_t)); | ||
memset(c->hw_pkey_c, 0, sizeof(ecc_key_t)); | ||
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ph = container + sizeof(ROM_container_raw); | ||
ph->ver_alg.version = cpu_to_be16(1); | ||
ph->ver_alg.hash_alg = 1; | ||
ph->ver_alg.sig_alg = 1; | ||
ph->code_start_offset = 0; | ||
ph->reserved = 0; | ||
ph->flags = 0; | ||
ph->sw_key_count = 1; // 1, not 0. Because Hostboot | ||
memset(ph->payload_hash, 0, sizeof(sha2_hash_t)); // TODO | ||
ph->ecid_count = 0; | ||
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pd = (ROM_prefix_data_raw*)ph->ecid; | ||
memset(pd->hw_sig_a, 0, sizeof(ecc_signature_t)); | ||
memset(pd->hw_sig_b, 0, sizeof(ecc_signature_t)); | ||
memset(pd->hw_sig_c, 0, sizeof(ecc_signature_t)); | ||
memset(pd->sw_pkey_p, 0, sizeof(ecc_key_t)); | ||
memset(pd->sw_pkey_q, 0, sizeof(ecc_key_t)); | ||
memset(pd->sw_pkey_r, 0, sizeof(ecc_key_t)); | ||
ph->payload_size = cpu_to_be64(sizeof(ecc_signature_t)*3 + ph->sw_key_count * sizeof(ecc_key_t)); | ||
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swh = (ROM_sw_header_raw*)(((void*)pd) + be64_to_cpu(ph->payload_size)); | ||
swh->ver_alg.version = cpu_to_be16(1); | ||
swh->ver_alg.hash_alg = 1; | ||
swh->ver_alg.sig_alg = 1; | ||
swh->code_start_offset = 0; | ||
swh->reserved = 0; | ||
swh->flags = 0; | ||
swh->reserved_0 = 0; | ||
swh->payload_size = cpu_to_be64(s.st_size); | ||
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r = write(fdout, container, SECURE_BOOT_HEADERS_SIZE); | ||
assert(r == 4096); | ||
read(fdin, buf, s.st_size%4096); | ||
write(fdout, buf, s.st_size%4096); | ||
l = s.st_size - s.st_size%4096; | ||
while (l) { | ||
read(fdin, buf, 4096); | ||
write(fdout, buf, 4096); | ||
l-=4096; | ||
}; | ||
close(fdin); | ||
close(fdout); | ||
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free(container); | ||
free(buf); | ||
return 0; | ||
} |