/*
* Copyright (c) 2016-2017, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <sys/types.h>
#include <sys/stat.h>
#include <assert.h>
#include <errno.h>
#include <limits.h>
#include <stdarg.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "fiptool.h"
#include "tbbr_config.h"
#define OPT_TOC_ENTRY 0
#define OPT_PLAT_TOC_FLAGS 1
#define OPT_ALIGN 2
static int info_cmd(int argc, char *argv[]);
static void info_usage(void);
static int create_cmd(int argc, char *argv[]);
static void create_usage(void);
static int update_cmd(int argc, char *argv[]);
static void update_usage(void);
static int unpack_cmd(int argc, char *argv[]);
static void unpack_usage(void);
static int remove_cmd(int argc, char *argv[]);
static void remove_usage(void);
static int version_cmd(int argc, char *argv[]);
static void version_usage(void);
static int help_cmd(int argc, char *argv[]);
static void usage(void);
/* Available subcommands. */
static cmd_t cmds[] = {
{ .name = "info", .handler = info_cmd, .usage = info_usage },
{ .name = "create", .handler = create_cmd, .usage = create_usage },
{ .name = "update", .handler = update_cmd, .usage = update_usage },
{ .name = "unpack", .handler = unpack_cmd, .usage = unpack_usage },
{ .name = "remove", .handler = remove_cmd, .usage = remove_usage },
{ .name = "version", .handler = version_cmd, .usage = version_usage },
{ .name = "help", .handler = help_cmd, .usage = NULL },
};
static image_desc_t *image_desc_head;
static size_t nr_image_descs;
static uuid_t uuid_null = { 0 };
static int verbose;
static void vlog(int prio, const char *msg, va_list ap)
{
char *prefix[] = { "DEBUG", "WARN", "ERROR" };
fprintf(stderr, "%s: ", prefix[prio]);
vfprintf(stderr, msg, ap);
fputc('\n', stderr);
}
static void log_dbgx(const char *msg, ...)
{
va_list ap;
va_start(ap, msg);
vlog(LOG_DBG, msg, ap);
va_end(ap);
}
static void log_warnx(const char *msg, ...)
{
va_list ap;
va_start(ap, msg);
vlog(LOG_WARN, msg, ap);
va_end(ap);
}
static void log_err(const char *msg, ...)
{
char buf[512];
va_list ap;
va_start(ap, msg);
snprintf(buf, sizeof(buf), "%s: %s", msg, strerror(errno));
vlog(LOG_ERR, buf, ap);
va_end(ap);
exit(1);
}
static void log_errx(const char *msg, ...)
{
va_list ap;
va_start(ap, msg);
vlog(LOG_ERR, msg, ap);
va_end(ap);
exit(1);
}
static char *xstrdup(const char *s, const char *msg)
{
char *d;
d = strdup(s);
if (d == NULL)
log_errx("strdup: %s", msg);
return d;
}
static void *xmalloc(size_t size, const char *msg)
{
void *d;
d = malloc(size);
if (d == NULL)
log_errx("malloc: %s", msg);
return d;
}
static void *xzalloc(size_t size, const char *msg)
{
return memset(xmalloc(size, msg), 0, size);
}
static void xfwrite(void *buf, size_t size, FILE *fp, const char *filename)
{
if (fwrite(buf, 1, size, fp) != size)
log_errx("Failed to write %s", filename);
}
static image_desc_t *new_image_desc(const uuid_t *uuid,
const char *name, const char *cmdline_name)
{
image_desc_t *desc;
desc = xzalloc(sizeof(*desc),
"failed to allocate memory for image descriptor");
memcpy(&desc->uuid, uuid, sizeof(uuid_t));
desc->name = xstrdup(name,
"failed to allocate memory for image name");
desc->cmdline_name = xstrdup(cmdline_name,
"failed to allocate memory for image command line name");
desc->action = DO_UNSPEC;
return desc;
}
static void set_image_desc_action(image_desc_t *desc, int action,
const char *arg)
{
assert(desc != NULL);
if (desc->action_arg != (char *)DO_UNSPEC)
free(desc->action_arg);
desc->action = action;
desc->action_arg = NULL;
if (arg != NULL)
desc->action_arg = xstrdup(arg,
"failed to allocate memory for argument");
}
static void free_image_desc(image_desc_t *desc)
{
free(desc->name);
free(desc->cmdline_name);
free(desc->action_arg);
free(desc->image);
free(desc);
}
static void add_image_desc(image_desc_t *desc)
{
image_desc_t **p = &image_desc_head;
while (*p)
p = &(*p)->next;
assert(*p == NULL);
*p = desc;
nr_image_descs++;
}
static void free_image_descs(void)
{
image_desc_t *desc = image_desc_head, *tmp;
while (desc != NULL) {
tmp = desc->next;
free_image_desc(desc);
desc = tmp;
nr_image_descs--;
}
assert(nr_image_descs == 0);
}
static void fill_image_descs(void)
{
toc_entry_t *toc_entry;
for (toc_entry = toc_entries;
toc_entry->cmdline_name != NULL;
toc_entry++) {
image_desc_t *desc;
desc = new_image_desc(&toc_entry->uuid,
toc_entry->name,
toc_entry->cmdline_name);
add_image_desc(desc);
}
}
static image_desc_t *lookup_image_desc_from_uuid(const uuid_t *uuid)
{
image_desc_t *desc;
for (desc = image_desc_head; desc != NULL; desc = desc->next)
if (memcmp(&desc->uuid, uuid, sizeof(uuid_t)) == 0)
return desc;
return NULL;
}
static image_desc_t *lookup_image_desc_from_opt(const char *opt)
{
image_desc_t *desc;
for (desc = image_desc_head; desc != NULL; desc = desc->next)
if (strcmp(desc->cmdline_name, opt) == 0)
return desc;
return NULL;
}
static void uuid_to_str(char *s, size_t len, const uuid_t *u)
{
assert(len >= (_UUID_STR_LEN + 1));
snprintf(s, len, "%08X-%04X-%04X-%04X-%04X%04X%04X",
u->time_low,
u->time_mid,
u->time_hi_and_version,
((uint16_t)u->clock_seq_hi_and_reserved << 8) | u->clock_seq_low,
((uint16_t)u->node[0] << 8) | u->node[1],
((uint16_t)u->node[2] << 8) | u->node[3],
((uint16_t)u->node[4] << 8) | u->node[5]);
}
static void uuid_from_str(uuid_t *u, const char *s)
{
int n;
if (s == NULL)
log_errx("UUID cannot be NULL");
if (strlen(s) != _UUID_STR_LEN)
log_errx("Invalid UUID: %s", s);
n = sscanf(s,
"%8x-%4hx-%4hx-%2hhx%2hhx-%2hhx%2hhx%2hhx%2hhx%2hhx%2hhx",
&u->time_low, &u->time_mid, &u->time_hi_and_version,
&u->clock_seq_hi_and_reserved, &u->clock_seq_low, &u->node[0],
&u->node[1], &u->node[2], &u->node[3], &u->node[4], &u->node[5]);
/*
* Given the format specifier above, we expect 11 items to be scanned
* for a properly formatted UUID.
*/
if (n != 11)
log_errx("Invalid UUID: %s", s);
}
static int parse_fip(const char *filename, fip_toc_header_t *toc_header_out)
{
struct BLD_PLAT_STAT st;
FILE *fp;
char *buf, *bufend;
fip_toc_header_t *toc_header;
fip_toc_entry_t *toc_entry;
int terminated = 0;
fp = fopen(filename, "rb");
if (fp == NULL)
log_err("fopen %s", filename);
if (fstat(fileno(fp), &st) == -1)
log_err("fstat %s", filename);
buf = xmalloc(st.st_size, "failed to load file into memory");
if (fread(buf, 1, st.st_size, fp) != st.st_size)
log_errx("Failed to read %s", filename);
bufend = buf + st.st_size;
fclose(fp);
if (st.st_size < sizeof(fip_toc_header_t))
log_errx("FIP %s is truncated", filename);
toc_header = (fip_toc_header_t *)buf;
toc_entry = (fip_toc_entry_t *)(toc_header + 1);
if (toc_header->name != TOC_HEADER_NAME)
log_errx("%s is not a FIP file", filename);
/* Return the ToC header if the caller wants it. */
if (toc_header_out != NULL)
*toc_header_out = *toc_header;
/* Walk through each ToC entry in the file. */
while ((char *)toc_entry + sizeof(*toc_entry) - 1 < bufend) {
image_t *image;
image_desc_t *desc;
/* Found the ToC terminator, we are done. */
if (memcmp(&toc_entry->uuid, &uuid_null, sizeof(uuid_t)) == 0) {
terminated = 1;
break;
}
/*
* Build a new image out of the ToC entry and add it to the
* table of images.
*/
image = xzalloc(sizeof(*image),
"failed to allocate memory for image");
image->toc_e = *toc_entry;
image->buffer = xmalloc(toc_entry->size,
"failed to allocate image buffer, is FIP file corrupted?");
/* Overflow checks before memory copy. */
if (toc_entry->size > (uint64_t)-1 - toc_entry->offset_address)
log_errx("FIP %s is corrupted", filename);
if (toc_entry->size + toc_entry->offset_address > st.st_size)
log_errx("FIP %s is corrupted", filename);
memcpy(image->buffer, buf + toc_entry->offset_address,
toc_entry->size);
/* If this is an unknown image, create a descriptor for it. */
desc = lookup_image_desc_from_uuid(&toc_entry->uuid);
if (desc == NULL) {
char name[_UUID_STR_LEN + 1], filename[PATH_MAX];
uuid_to_str(name, sizeof(name), &toc_entry->uuid);
snprintf(filename, sizeof(filename), "%s%s",
name, ".bin");
desc = new_image_desc(&toc_entry->uuid, name, "blob");
desc->action = DO_UNPACK;
desc->action_arg = xstrdup(filename,
"failed to allocate memory for blob filename");
add_image_desc(desc);
}
assert(desc->image == NULL);
desc->image = image;
toc_entry++;
}
if (terminated == 0)
log_errx("FIP %s does not have a ToC terminator entry",
filename);
free(buf);
return 0;
}
static image_t *read_image_from_file(const uuid_t *uuid, const char *filename)
{
struct BLD_PLAT_STAT st;
image_t *image;
FILE *fp;
assert(uuid != NULL);
assert(filename != NULL);
fp = fopen(filename, "rb");
if (fp == NULL)
log_err("fopen %s", filename);
if (fstat(fileno(fp), &st) == -1)
log_errx("fstat %s", filename);
image = xzalloc(sizeof(*image), "failed to allocate memory for image");
image->toc_e.uuid = *uuid;
image->buffer = xmalloc(st.st_size, "failed to allocate image buffer");
if (fread(image->buffer, 1, st.st_size, fp) != st.st_size)
log_errx("Failed to read %s", filename);
image->toc_e.size = st.st_size;
fclose(fp);
return image;
}
static int write_image_to_file(const image_t *image, const char *filename)
{
FILE *fp;
fp = fopen(filename, "wb");
if (fp == NULL)
log_err("fopen");
xfwrite(image->buffer, image->toc_e.size, fp, filename);
fclose(fp);
return 0;
}
static struct option *add_opt(struct option *opts, size_t *nr_opts,
const char *name, int has_arg, int val)
{
opts = realloc(opts, (*nr_opts + 1) * sizeof(*opts));
if (opts == NULL)
log_err("realloc");
opts[*nr_opts].name = name;
opts[*nr_opts].has_arg = has_arg;
opts[*nr_opts].flag = NULL;
opts[*nr_opts].val = val;
++*nr_opts;
return opts;
}
static struct option *fill_common_opts(struct option *opts, size_t *nr_opts,
int has_arg)
{
image_desc_t *desc;
for (desc = image_desc_head; desc != NULL; desc = desc->next)
opts = add_opt(opts, nr_opts, desc->cmdline_name, has_arg,
OPT_TOC_ENTRY);
return opts;
}
static void md_print(const unsigned char *md, size_t len)
{
size_t i;
for (i = 0; i < len; i++)
printf("%02x", md[i]);
}
static int info_cmd(int argc, char *argv[])
{
image_desc_t *desc;
fip_toc_header_t toc_header;
if (argc != 2)
info_usage();
argc--, argv++;
parse_fip(argv[0], &toc_header);
if (verbose) {
log_dbgx("toc_header[name]: 0x%llX",
(unsigned long long)toc_header.name);
log_dbgx("toc_header[serial_number]: 0x%llX",
(unsigned long long)toc_header.serial_number);
log_dbgx("toc_header[flags]: 0x%llX",
(unsigned long long)toc_header.flags);
}
for (desc = image_desc_head; desc != NULL; desc = desc->next) {
image_t *image = desc->image;
if (image == NULL)
continue;
printf("%s: offset=0x%llX, size=0x%llX, cmdline=\"--%s\"",
desc->name,
(unsigned long long)image->toc_e.offset_address,
(unsigned long long)image->toc_e.size,
desc->cmdline_name);
#ifndef _MSC_VER /* We don't have SHA256 for Visual Studio. */
if (verbose) {
unsigned char md[SHA256_DIGEST_LENGTH];
SHA256(image->buffer, image->toc_e.size, md);
printf(", sha256=");
md_print(md, sizeof(md));
}
#endif
putchar('\n');
}
return 0;
}
static void info_usage(void)
{
printf("fiptool info FIP_FILENAME\n");
exit(1);
}
static int pack_images(const char *filename, uint64_t toc_flags, unsigned long align)
{
FILE *fp;
image_desc_t *desc;
fip_toc_header_t *toc_header;
fip_toc_entry_t *toc_entry;
char *buf;
uint64_t entry_offset, buf_size, payload_size = 0;
size_t nr_images = 0;
for (desc = image_desc_head; desc != NULL; desc = desc->next)
if (desc->image != NULL)
nr_images++;
buf_size = sizeof(fip_toc_header_t) +
sizeof(fip_toc_entry_t) * (nr_images + 1);
buf = calloc(1, buf_size);
if (buf == NULL)
log_err("calloc");
/* Build up header and ToC entries from the image table. */
toc_header = (fip_toc_header_t *)buf;
toc_header->name = TOC_HEADER_NAME;
toc_header->serial_number = TOC_HEADER_SERIAL_NUMBER;
toc_header->flags = toc_flags;
toc_entry = (fip_toc_entry_t *)(toc_header + 1);
entry_offset = buf_size;
for (desc = image_desc_head; desc != NULL; desc = desc->next) {
image_t *image = desc->image;
if (image == NULL)
continue;
payload_size += image->toc_e.size;
entry_offset = (entry_offset + align - 1) & ~(align - 1);
image->toc_e.offset_address = entry_offset;
*toc_entry++ = image->toc_e;
entry_offset += image->toc_e.size;
}
/* Append a null uuid entry to mark the end of ToC entries. */
memset(toc_entry, 0, sizeof(*toc_entry));
toc_entry->offset_address = entry_offset;
/* Generate the FIP file. */
fp = fopen(filename, "wb");
if (fp == NULL)
log_err("fopen %s", filename);
if (verbose)
log_dbgx("Metadata size: %zu bytes", buf_size);
xfwrite(buf, buf_size, fp, filename);
free(buf);
if (verbose)
log_dbgx("Payload size: %zu bytes", payload_size);
for (desc = image_desc_head; desc != NULL; desc = desc->next) {
image_t *image = desc->image;
if (image == NULL)
continue;
if (fseek(fp, image->toc_e.offset_address, SEEK_SET))
log_errx("Failed to set file position");
xfwrite(image->buffer, image->toc_e.size, fp, filename);
}
fclose(fp);
return 0;
}
/*
* This function is shared between the create and update subcommands.
* The difference between the two subcommands is that when the FIP file
* is created, the parsing of an existing FIP is skipped. This results
* in update_fip() creating the new FIP file from scratch because the
* internal image table is not populated.
*/
static void update_fip(void)
{
image_desc_t *desc;
/* Add or replace images in the FIP file. */
for (desc = image_desc_head; desc != NULL; desc = desc->next) {
image_t *image;
if (desc->action != DO_PACK)
continue;
image = read_image_from_file(&desc->uuid,
desc->action_arg);
if (desc->image != NULL) {
if (verbose) {
log_dbgx("Replacing %s with %s",
desc->cmdline_name,
desc->action_arg);
}
free(desc->image);
desc->image = image;
} else {
if (verbose)
log_dbgx("Adding image %s",
desc->action_arg);
desc->image = image;
}
}
}
static void parse_plat_toc_flags(const char *arg, unsigned long long *toc_flags)
{
unsigned long long flags;
char *endptr;
errno = 0;
flags = strtoull(arg, &endptr, 16);
if (*endptr != '\0' || flags > UINT16_MAX || errno != 0)
log_errx("Invalid platform ToC flags: %s", arg);
/* Platform ToC flags is a 16-bit field occupying bits [32-47]. */
*toc_flags |= flags << 32;
}
static int is_power_of_2(unsigned long x)
{
return x && !(x & (x - 1));
}
static unsigned long get_image_align(char *arg)
{
char *endptr;
unsigned long align;
errno = 0;
align = strtoul(arg, &endptr, 0);
if (*endptr != '\0' || !is_power_of_2(align) || errno != 0)
log_errx("Invalid alignment: %s", arg);
return align;
}
static void parse_blob_opt(char *arg, uuid_t *uuid, char *filename, size_t len)
{
char *p;
for (p = strtok(arg, ","); p != NULL; p = strtok(NULL, ",")) {
if (strncmp(p, "uuid=", strlen("uuid=")) == 0) {
p += strlen("uuid=");
uuid_from_str(uuid, p);
} else if (strncmp(p, "file=", strlen("file=")) == 0) {
p += strlen("file=");
snprintf(filename, len, "%s", p);
}
}
}
static int create_cmd(int argc, char *argv[])
{
struct option *opts = NULL;
size_t nr_opts = 0;
unsigned long long toc_flags = 0;
unsigned long align = 1;
if (argc < 2)
create_usage();
opts = fill_common_opts(opts, &nr_opts, required_argument);
opts = add_opt(opts, &nr_opts, "plat-toc-flags", required_argument,
OPT_PLAT_TOC_FLAGS);
opts = add_opt(opts, &nr_opts, "align", required_argument, OPT_ALIGN);
opts = add_opt(opts, &nr_opts, "blob", required_argument, 'b');
opts = add_opt(opts, &nr_opts, NULL, 0, 0);
while (1) {
int c, opt_index = 0;
c = getopt_long(argc, argv, "b:", opts, &opt_index);
if (c == -1)
break;
switch (c) {
case OPT_TOC_ENTRY: {
image_desc_t *desc;
desc = lookup_image_desc_from_opt(opts[opt_index].name);
set_image_desc_action(desc, DO_PACK, optarg);
break;
}
case OPT_PLAT_TOC_FLAGS:
parse_plat_toc_flags(optarg, &toc_flags);
break;
case OPT_ALIGN:
align = get_image_align(optarg);
break;
case 'b': {
char name[_UUID_STR_LEN + 1];
char filename[PATH_MAX] = { 0 };
uuid_t uuid = { 0 };
image_desc_t *desc;
parse_blob_opt(optarg, &uuid,
filename, sizeof(filename));
if (memcmp(&uuid, &uuid_null, sizeof(uuid_t)) == 0 ||
filename[0] == '\0')
create_usage();
desc = lookup_image_desc_from_uuid(&uuid);
if (desc == NULL) {
uuid_to_str(name, sizeof(name), &uuid);
desc = new_image_desc(&uuid, name, "blob");
add_image_desc(desc);
}
set_image_desc_action(desc, DO_PACK, filename);
break;
}
default:
create_usage();
}
}
argc -= optind;
argv += optind;
free(opts);
if (argc == 0)
create_usage();
update_fip();
pack_images(argv[0], toc_flags, align);
return 0;
}
static void create_usage(void)
{
toc_entry_t *toc_entry = toc_entries;
printf("fiptool create [opts] FIP_FILENAME\n");
printf("\n");
printf("Options:\n");
printf(" --align <value>\t\tEach image is aligned to <value> (default: 1).\n");
printf(" --blob uuid=...,file=...\tAdd an image with the given UUID pointed to by file.\n");
printf(" --plat-toc-flags <value>\t16-bit platform specific flag field occupying bits 32-47 in 64-bit ToC header.\n");
printf("\n");
printf("Specific images are packed with the following options:\n");
for (; toc_entry->cmdline_name != NULL; toc_entry++)
printf(" --%-16s FILENAME\t%s\n", toc_entry->cmdline_name,
toc_entry->name);
exit(1);
}
static int update_cmd(int argc, char *argv[])
{
struct option *opts = NULL;
size_t nr_opts = 0;
char outfile[PATH_MAX] = { 0 };
fip_toc_header_t toc_header = { 0 };
unsigned long long toc_flags = 0;
unsigned long align = 1;
int pflag = 0;
if (argc < 2)
update_usage();
opts = fill_common_opts(opts, &nr_opts, required_argument);
opts = add_opt(opts, &nr_opts, "align", required_argument, OPT_ALIGN);
opts = add_opt(opts, &nr_opts, "blob", required_argument, 'b');
opts = add_opt(opts, &nr_opts, "out", required_argument, 'o');
opts = add_opt(opts, &nr_opts, "plat-toc-flags", required_argument,
OPT_PLAT_TOC_FLAGS);
opts = add_opt(opts, &nr_opts, NULL, 0, 0);
while (1) {
int c, opt_index = 0;
c = getopt_long(argc, argv, "b:o:", opts, &opt_index);
if (c == -1)
break;
switch (c) {
case OPT_TOC_ENTRY: {
image_desc_t *desc;
desc = lookup_image_desc_from_opt(opts[opt_index].name);
set_image_desc_action(desc, DO_PACK, optarg);
break;
}
case OPT_PLAT_TOC_FLAGS:
parse_plat_toc_flags(optarg, &toc_flags);
pflag = 1;
break;
case 'b': {
char name[_UUID_STR_LEN + 1];
char filename[PATH_MAX] = { 0 };
uuid_t uuid = { 0 };
image_desc_t *desc;
parse_blob_opt(optarg, &uuid,
filename, sizeof(filename));
if (memcmp(&uuid, &uuid_null, sizeof(uuid_t)) == 0 ||
filename[0] == '\0')
update_usage();
desc = lookup_image_desc_from_uuid(&uuid);
if (desc == NULL) {
uuid_to_str(name, sizeof(name), &uuid);
desc = new_image_desc(&uuid, name, "blob");
add_image_desc(desc);
}
set_image_desc_action(desc, DO_PACK, filename);
break;
}
case OPT_ALIGN:
align = get_image_align(optarg);
break;
case 'o':
snprintf(outfile, sizeof(outfile), "%s", optarg);
break;
default:
update_usage();
}
}
argc -= optind;
argv += optind;
free(opts);
if (argc == 0)
update_usage();
if (outfile[0] == '\0')
snprintf(outfile, sizeof(outfile), "%s", argv[0]);
if (access(argv[0], F_OK) == 0)
parse_fip(argv[0], &toc_header);
if (pflag)
toc_header.flags &= ~(0xffffULL << 32);
toc_flags = (toc_header.flags |= toc_flags);
update_fip();
pack_images(outfile, toc_flags, align);
return 0;
}
static void update_usage(void)
{
toc_entry_t *toc_entry = toc_entries;
printf("fiptool update [opts] FIP_FILENAME\n");
printf("\n");
printf("Options:\n");
printf(" --align <value>\t\tEach image is aligned to <value> (default: 1).\n");
printf(" --blob uuid=...,file=...\tAdd or update an image with the given UUID pointed to by file.\n");
printf(" --out FIP_FILENAME\t\tSet an alternative output FIP file.\n");
printf(" --plat-toc-flags <value>\t16-bit platform specific flag field occupying bits 32-47 in 64-bit ToC header.\n");
printf("\n");
printf("Specific images are packed with the following options:\n");
for (; toc_entry->cmdline_name != NULL; toc_entry++)
printf(" --%-16s FILENAME\t%s\n", toc_entry->cmdline_name,
toc_entry->name);
exit(1);
}
static int unpack_cmd(int argc, char *argv[])
{
struct option *opts = NULL;
size_t nr_opts = 0;
char outdir[PATH_MAX] = { 0 };
image_desc_t *desc;
int fflag = 0;
int unpack_all = 1;
if (argc < 2)
unpack_usage();
opts = fill_common_opts(opts, &nr_opts, required_argument);
opts = add_opt(opts, &nr_opts, "blob", required_argument, 'b');
opts = add_opt(opts, &nr_opts, "force", no_argument, 'f');
opts = add_opt(opts, &nr_opts, "out", required_argument, 'o');
opts = add_opt(opts, &nr_opts, NULL, 0, 0);
while (1) {
int c, opt_index = 0;
c = getopt_long(argc, argv, "b:fo:", opts, &opt_index);
if (c == -1)
break;
switch (c) {
case OPT_TOC_ENTRY: {
image_desc_t *desc;
desc = lookup_image_desc_from_opt(opts[opt_index].name);
set_image_desc_action(desc, DO_UNPACK, optarg);
unpack_all = 0;
break;
}
case 'b': {
char name[_UUID_STR_LEN + 1];
char filename[PATH_MAX] = { 0 };
uuid_t uuid = { 0 };
image_desc_t *desc;
parse_blob_opt(optarg, &uuid,
filename, sizeof(filename));
if (memcmp(&uuid, &uuid_null, sizeof(uuid_t)) == 0 ||
filename[0] == '\0')
unpack_usage();
desc = lookup_image_desc_from_uuid(&uuid);
if (desc == NULL) {
uuid_to_str(name, sizeof(name), &uuid);
desc = new_image_desc(&uuid, name, "blob");
add_image_desc(desc);
}
set_image_desc_action(desc, DO_UNPACK, filename);
unpack_all = 0;
break;
}
case 'f':
fflag = 1;
break;
case 'o':
snprintf(outdir, sizeof(outdir), "%s", optarg);
break;
default:
unpack_usage();
}
}
argc -= optind;
argv += optind;
free(opts);
if (argc == 0)
unpack_usage();
parse_fip(argv[0], NULL);
if (outdir[0] != '\0')
if (chdir(outdir) == -1)
log_err("chdir %s", outdir);
/* Unpack all specified images. */
for (desc = image_desc_head; desc != NULL; desc = desc->next) {
char file[PATH_MAX];
image_t *image = desc->image;
if (!unpack_all && desc->action != DO_UNPACK)
continue;
/* Build filename. */
if (desc->action_arg == NULL)
snprintf(file, sizeof(file), "%s.bin",
desc->cmdline_name);
else
snprintf(file, sizeof(file), "%s",
desc->action_arg);
if (image == NULL) {
if (!unpack_all)
log_warnx("%s does not exist in %s",
file, argv[0]);
continue;
}
if (access(file, F_OK) != 0 || fflag) {
if (verbose)
log_dbgx("Unpacking %s", file);
write_image_to_file(image, file);
} else {
log_warnx("File %s already exists, use --force to overwrite it",
file);
}
}
return 0;
}
static void unpack_usage(void)
{
toc_entry_t *toc_entry = toc_entries;
printf("fiptool unpack [opts] FIP_FILENAME\n");
printf("\n");
printf("Options:\n");
printf(" --blob uuid=...,file=...\tUnpack an image with the given UUID to file.\n");
printf(" --force\t\t\tIf the output file already exists, use --force to overwrite it.\n");
printf(" --out path\t\t\tSet the output directory path.\n");
printf("\n");
printf("Specific images are unpacked with the following options:\n");
for (; toc_entry->cmdline_name != NULL; toc_entry++)
printf(" --%-16s FILENAME\t%s\n", toc_entry->cmdline_name,
toc_entry->name);
printf("\n");
printf("If no options are provided, all images will be unpacked.\n");
exit(1);
}
static int remove_cmd(int argc, char *argv[])
{
struct option *opts = NULL;
size_t nr_opts = 0;
char outfile[PATH_MAX] = { 0 };
fip_toc_header_t toc_header;
image_desc_t *desc;
unsigned long align = 1;
int fflag = 0;
if (argc < 2)
remove_usage();
opts = fill_common_opts(opts, &nr_opts, no_argument);
opts = add_opt(opts, &nr_opts, "align", required_argument, OPT_ALIGN);
opts = add_opt(opts, &nr_opts, "blob", required_argument, 'b');
opts = add_opt(opts, &nr_opts, "force", no_argument, 'f');
opts = add_opt(opts, &nr_opts, "out", required_argument, 'o');
opts = add_opt(opts, &nr_opts, NULL, 0, 0);
while (1) {
int c, opt_index = 0;
c = getopt_long(argc, argv, "b:fo:", opts, &opt_index);
if (c == -1)
break;
switch (c) {
case OPT_TOC_ENTRY: {
image_desc_t *desc;
desc = lookup_image_desc_from_opt(opts[opt_index].name);
set_image_desc_action(desc, DO_REMOVE, NULL);
break;
}
case OPT_ALIGN:
align = get_image_align(optarg);
break;
case 'b': {
char name[_UUID_STR_LEN + 1], filename[PATH_MAX];
uuid_t uuid = { 0 };
image_desc_t *desc;
parse_blob_opt(optarg, &uuid,
filename, sizeof(filename));
if (memcmp(&uuid, &uuid_null, sizeof(uuid_t)) == 0)
remove_usage();
desc = lookup_image_desc_from_uuid(&uuid);
if (desc == NULL) {
uuid_to_str(name, sizeof(name), &uuid);
desc = new_image_desc(&uuid, name, "blob");
add_image_desc(desc);
}
set_image_desc_action(desc, DO_REMOVE, NULL);
break;
}
case 'f':
fflag = 1;
break;
case 'o':
snprintf(outfile, sizeof(outfile), "%s", optarg);
break;
default:
remove_usage();
}
}
argc -= optind;
argv += optind;
free(opts);
if (argc == 0)
remove_usage();
if (outfile[0] != '\0' && access(outfile, F_OK) == 0 && !fflag)
log_errx("File %s already exists, use --force to overwrite it",
outfile);
if (outfile[0] == '\0')
snprintf(outfile, sizeof(outfile), "%s", argv[0]);
parse_fip(argv[0], &toc_header);
for (desc = image_desc_head; desc != NULL; desc = desc->next) {
if (desc->action != DO_REMOVE)
continue;
if (desc->image != NULL) {
if (verbose)
log_dbgx("Removing %s",
desc->cmdline_name);
free(desc->image);
desc->image = NULL;
} else {
log_warnx("%s does not exist in %s",
desc->cmdline_name, argv[0]);
}
}
pack_images(outfile, toc_header.flags, align);
return 0;
}
static void remove_usage(void)
{
toc_entry_t *toc_entry = toc_entries;
printf("fiptool remove [opts] FIP_FILENAME\n");
printf("\n");
printf("Options:\n");
printf(" --align <value>\tEach image is aligned to <value> (default: 1).\n");
printf(" --blob uuid=...\tRemove an image with the given UUID.\n");
printf(" --force\t\tIf the output FIP file already exists, use --force to overwrite it.\n");
printf(" --out FIP_FILENAME\tSet an alternative output FIP file.\n");
printf("\n");
printf("Specific images are removed with the following options:\n");
for (; toc_entry->cmdline_name != NULL; toc_entry++)
printf(" --%-16s\t%s\n", toc_entry->cmdline_name,
toc_entry->name);
exit(1);
}
static int version_cmd(int argc, char *argv[])
{
#ifdef VERSION
puts(VERSION);
#else
/* If built from fiptool directory, VERSION is not set. */
puts("Unknown version");
#endif
return 0;
}
static void version_usage(void)
{
printf("fiptool version\n");
exit(1);
}
static int help_cmd(int argc, char *argv[])
{
int i;
if (argc < 2)
usage();
argc--, argv++;
for (i = 0; i < NELEM(cmds); i++) {
if (strcmp(cmds[i].name, argv[0]) == 0 &&
cmds[i].usage != NULL)
cmds[i].usage();
}
if (i == NELEM(cmds))
printf("No help for subcommand '%s'\n", argv[0]);
return 0;
}
static void usage(void)
{
printf("usage: fiptool [--verbose] <command> [<args>]\n");
printf("Global options supported:\n");
printf(" --verbose\tEnable verbose output for all commands.\n");
printf("\n");
printf("Commands supported:\n");
printf(" info\t\tList images contained in FIP.\n");
printf(" create\tCreate a new FIP with the given images.\n");
printf(" update\tUpdate an existing FIP with the given images.\n");
printf(" unpack\tUnpack images from FIP.\n");
printf(" remove\tRemove images from FIP.\n");
printf(" version\tShow fiptool version.\n");
printf(" help\t\tShow help for given command.\n");
exit(1);
}
int main(int argc, char *argv[])
{
int i, ret = 0;
while (1) {
int c, opt_index = 0;
static struct option opts[] = {
{ "verbose", no_argument, NULL, 'v' },
{ NULL, no_argument, NULL, 0 }
};
/*
* Set POSIX mode so getopt stops at the first non-option
* which is the subcommand.
*/
c = getopt_long(argc, argv, "+v", opts, &opt_index);
if (c == -1)
break;
switch (c) {
case 'v':
verbose = 1;
break;
default:
usage();
}
}
argc -= optind;
argv += optind;
/* Reset optind for subsequent getopt processing. */
optind = 0;
if (argc == 0)
usage();
fill_image_descs();
for (i = 0; i < NELEM(cmds); i++) {
if (strcmp(cmds[i].name, argv[0]) == 0) {
ret = cmds[i].handler(argc, argv);
break;
}
}
if (i == NELEM(cmds))
usage();
free_image_descs();
return ret;
}