| /* Copyright 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. |
| */ |
| |
| #include <config.h> |
| |
| #include <stdbool.h> |
| #include <types.h> |
| |
| #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 <fcntl.h> |
| #include <assert.h> |
| |
| #include "../container.h" |
| #include "../container.c" |
| |
| static void display_version_raw(const ROM_version_raw v) |
| { |
| printf("ver_alg:\n"); |
| printf(" version: %04x\n", be16_to_cpu(v.version)); |
| printf(" hash_alg: %02x (%s)\n", v.hash_alg, (v.hash_alg == 1)? "SHA512" : "UNKNOWN"); |
| printf(" sig_alg: %02x (%s)\n", v.sig_alg, (v.sig_alg == 1) ? "SHA512/ECDSA-521" : "UNKNOWN"); |
| } |
| |
| static void display_sha2_hash_t(const sha2_hash_t h) |
| { |
| int i; |
| for(i=0; i<SHA512_DIGEST_LENGTH; i++) |
| printf("%02x", h[i]); |
| } |
| |
| static void display_ecid(const uint8_t *ecid) |
| { |
| for(int i=0; i<ECID_SIZE; i++) |
| printf("%02x", ecid[i]); |
| } |
| |
| static void display_prefix_header(const ROM_prefix_header_raw *p) |
| { |
| printf("Prefix Header:\n"); |
| display_version_raw(p->ver_alg); |
| printf("code_start_offset: %08lx\n", be64_to_cpu(p->code_start_offset)); |
| printf("reserved: %08lx\n", be64_to_cpu(p->reserved)); |
| printf("flags: %08x\n", be32_to_cpu(p->flags)); |
| printf("sw_key_count: %02x\n", p->sw_key_count); |
| printf("payload_size: %08lx\n", be64_to_cpu(p->payload_size)); |
| printf("payloah_hash: "); |
| display_sha2_hash_t(p->payload_hash); |
| printf("\n"); |
| printf("ecid_count: %02x\n", p->ecid_count); |
| for(int i=0; i< p->ecid_count; i++) { |
| printf("ecid: "); |
| display_ecid(p->ecid[i].ecid); |
| printf("\n"); |
| } |
| } |
| |
| static void display_sw_header(const ROM_sw_header_raw *swh) |
| { |
| printf("Software Header:\n"); |
| display_version_raw(swh->ver_alg); |
| printf("code_start_offset: %08lx\n", be64_to_cpu(swh->code_start_offset)); |
| printf("reserved: %08lx\n", be64_to_cpu(swh->reserved)); |
| printf("flags: %08x\n", be32_to_cpu(swh->flags)); |
| printf("reserved_0: %02x\n", swh->reserved_0); |
| printf("payload_size: %08lx (%lu)\n", be64_to_cpu(swh->payload_size), be64_to_cpu(swh->payload_size)); |
| printf("payloah_hash: "); |
| display_sha2_hash_t(swh->payload_hash); |
| printf("\n"); |
| printf("ecid_count: %02x\n", swh->ecid_count); |
| |
| for(int i=0; i< swh->ecid_count; i++) { |
| printf("ecid: "); |
| display_ecid(swh->ecid[i].ecid); |
| printf("\n"); |
| } |
| } |
| |
| static void display_ec_coord(const uint8_t *e) |
| { |
| for(int i=0; i<EC_COORDBYTES*2; i++) |
| printf("%02x", e[i]); |
| } |
| |
| static void display_prefix_data(const int sw_key_count, const ROM_prefix_data_raw *pd) |
| { |
| printf("Prefix Data:\n"); |
| printf("hw_sig_a: "); display_ec_coord(pd->hw_sig_a); printf("\n"); |
| printf("hw_sig_b: "); display_ec_coord(pd->hw_sig_b); printf("\n"); |
| printf("hw_sig_c: "); display_ec_coord(pd->hw_sig_c); printf("\n"); |
| if (sw_key_count >=1) { |
| printf("sw_pkey_p: "); display_ec_coord(pd->sw_pkey_p); printf("\n"); |
| } |
| if (sw_key_count >=2) { |
| printf("sw_pkey_q: "); display_ec_coord(pd->sw_pkey_q); printf("\n"); |
| } |
| if (sw_key_count >=3) { |
| printf("sw_pkey_r: "); display_ec_coord(pd->sw_pkey_r); printf("\n"); |
| } |
| } |
| |
| static void display_sw_sig(const ROM_sw_sig_raw *s) |
| { |
| printf("Software Signatures:\n"); |
| printf("sw_sig_p: "); display_ec_coord(s->sw_sig_p); printf("\n"); |
| printf("sw_sig_q: "); display_ec_coord(s->sw_sig_q); printf("\n"); |
| printf("sw_sig_r: "); display_ec_coord(s->sw_sig_r); printf("\n"); |
| } |
| |
| static void display_rom_container_raw(const ROM_container_raw *rcr) |
| { |
| printf("Container:\n"); |
| printf("magic: 0x%04x\n", be32_to_cpu(rcr->magic_number)); |
| printf("version: 0x%02x\n", be16_to_cpu(rcr->version)); |
| printf("container_size: 0x%08lx (%lu)\n", be64_to_cpu(rcr->container_size), be64_to_cpu(rcr->container_size)); |
| printf("target_hrmor: 0x%08lx\n", be64_to_cpu(rcr->target_hrmor)); |
| printf("stack_pointer: 0x%08lx\n", be64_to_cpu(rcr->stack_pointer)); |
| printf("hw_pkey_a:\n"); |
| for(int i=0; i < EC_COORDBYTES; i++) |
| printf("%02x", rcr->hw_pkey_a[i]); |
| printf("\n"); |
| printf("hw_pkey_b:\n"); |
| for(int i=0; i < EC_COORDBYTES; i++) |
| printf("%02x", rcr->hw_pkey_b[i]); |
| printf("\n"); |
| printf("hw_pkey_c:\n"); |
| for(int i=0; i < EC_COORDBYTES; i++) |
| printf("%02x", rcr->hw_pkey_c[i]); |
| printf("\n"); |
| } |
| |
| static void display_container(char* f) |
| { |
| int fd = open(f, O_RDONLY); |
| void *container = malloc(SECURE_BOOT_HEADERS_SIZE); |
| struct parsed_stb_container c; |
| size_t sz; |
| |
| assert(container); |
| if (fd == -1) { |
| perror(strerror(errno)); |
| exit(EXIT_FAILURE); |
| } |
| |
| sz = read(fd, container, SECURE_BOOT_HEADERS_SIZE); |
| if (sz != SECURE_BOOT_HEADERS_SIZE) { |
| perror(strerror(errno)); |
| exit(EXIT_FAILURE); |
| } |
| |
| if (!stb_is_container(container, SECURE_BOOT_HEADERS_SIZE)) { |
| fprintf(stderr, "Not a container, missing magic number\n"); |
| exit(EXIT_FAILURE); |
| } |
| |
| if (parse_stb_container(container, SECURE_BOOT_HEADERS_SIZE, &c) != 0) { |
| fprintf(stderr, "Failed to parse container.\n"); |
| exit(EXIT_FAILURE); |
| } |
| |
| display_rom_container_raw(c.c); |
| printf("\n"); |
| |
| display_prefix_header(c.ph); |
| printf("\n"); |
| |
| display_prefix_data(c.ph->sw_key_count, c.pd); |
| printf("\n"); |
| |
| display_sw_header(c.sh); |
| printf("\n"); |
| |
| display_sw_sig(c.ssig); |
| |
| free(container); |
| close(fd); |
| } |
| |
| int main(int argc, char* argv[]) |
| { |
| if (argc != 2) { |
| fprintf(stderr, "Usage %s container_file\n", argv[0]); |
| return 0; |
| } |
| |
| display_container(argv[1]); |
| |
| return 0; |
| } |