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Merge pull request #799 from masahir0y/fiptool

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fiptool: Alignment support + misc refactoring
This commit is contained in:
danh-arm 2017-01-31 15:39:19 +00:00 committed by GitHub
commit 474d4eca1c
4 changed files with 133 additions and 82 deletions
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4
Makefile
View File

@ -350,6 +350,10 @@ ifeq (${ENABLE_PSCI_STAT},1)
ENABLE_PMF := 1
endif
ifneq (${FIP_ALIGN},0)
FIP_ARGS += --align ${FIP_ALIGN}
endif
################################################################################
# Auxiliary tools (fiptool, cert_create, etc)
################################################################################

3
make_helpers/defaults.mk
View File

@ -89,6 +89,9 @@ ENABLE_RUNTIME_INSTRUMENTATION := 0
# Build flag to treat usage of deprecated platform and framework APIs as error.
ERROR_DEPRECATED := 0
# Byte alignment that each component in FIP is aligned to
FIP_ALIGN := 0
# Default FIP file name
FIP_NAME := fip.bin

200
tools/fiptool/fiptool.c
View File

@ -50,6 +50,7 @@
#define OPT_TOC_ENTRY 0
#define OPT_PLAT_TOC_FLAGS 1
#define OPT_ALIGN 2
static image_desc_t *lookup_image_desc_from_uuid(const uuid_t *uuid);
static image_t *lookup_image_from_uuid(const uuid_t *uuid);
@ -160,6 +161,12 @@ 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)
{
@ -202,11 +209,10 @@ static void add_image_desc(image_desc_t *desc)
{
image_desc_t **p = &image_desc_head;
assert(lookup_image_desc_from_uuid(&desc->uuid) == NULL);
while (*p)
p = &(*p)->next;
assert(*p == NULL);
*p = desc;
nr_image_descs++;
}
@ -244,16 +250,32 @@ static void add_image(image_t *image)
{
image_t **p = &image_head;
assert(lookup_image_from_uuid(&image->uuid) == NULL);
while (*p)
p = &(*p)->next;
assert(*p == NULL);
*p = image;
nr_images++;
}
static void replace_image(image_t *image)
{
image_t **p = &image_head;
while (*p) {
if (!memcmp(&(*p)->toc_e.uuid, &image->toc_e.uuid,
sizeof(image->toc_e.uuid)))
break;
p = &(*p)->next;
}
assert(*p != NULL);
image->next = (*p)->next;
*p = image;
}
static void free_image(image_t *image)
{
free(image->buffer);
@ -262,20 +284,20 @@ static void free_image(image_t *image)
static void remove_image(image_t *image)
{
image_t *tmp = image_head, *prev;
image_t *tmp, **p = &image_head;
if (tmp == image) {
image_head = tmp->next;
free_image(tmp);
} else {
while (tmp != NULL && tmp != image) {
prev = tmp;
tmp = tmp->next;
}
assert(tmp != NULL);
prev->next = tmp->next;
free_image(tmp);
while (*p) {
if (*p == image)
break;
p = &(*p)->next;
}
assert(*p != NULL);
tmp = *p;
*p = tmp->next;
free_image(tmp);
nr_images--;
}
@ -317,7 +339,7 @@ static image_t *lookup_image_from_uuid(const uuid_t *uuid)
image_t *image;
for (image = image_head; image != NULL; image = image->next)
if (memcmp(&image->uuid, uuid, sizeof(uuid_t)) == 0)
if (!memcmp(&image->toc_e.uuid, uuid, sizeof(*uuid)))
return image;
return NULL;
}
@ -410,7 +432,7 @@ static int parse_fip(const char *filename, fip_toc_header_t *toc_header_out)
*/
image = xzalloc(sizeof(*image),
"failed to allocate memory for image");
memcpy(&image->uuid, &toc_entry->uuid, sizeof(uuid_t));
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. */
@ -421,17 +443,16 @@ static int parse_fip(const char *filename, fip_toc_header_t *toc_header_out)
memcpy(image->buffer, buf + toc_entry->offset_address,
toc_entry->size);
image->size = toc_entry->size;
/* If this is an unknown image, create a descriptor for it. */
desc = lookup_image_desc_from_uuid(&image->uuid);
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), &image->uuid);
uuid_to_str(name, sizeof(name), &toc_entry->uuid);
snprintf(filename, sizeof(filename), "%s%s",
name, ".bin");
desc = new_image_desc(&image->uuid, name, "blob");
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");
@ -466,11 +487,11 @@ static image_t *read_image_from_file(const uuid_t *uuid, const char *filename)
log_errx("fstat %s", filename);
image = xzalloc(sizeof(*image), "failed to allocate memory for image");
memcpy(&image->uuid, uuid, sizeof(uuid_t));
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->size = st.st_size;
image->toc_e.size = st.st_size;
fclose(fp);
return image;
@ -483,8 +504,7 @@ static int write_image_to_file(const image_t *image, const char *filename)
fp = fopen(filename, "w");
if (fp == NULL)
log_err("fopen");
if (fwrite(image->buffer, 1, image->size, fp) != image->size)
log_errx("Failed to write %s", filename);
xfwrite(image->buffer, image->toc_e.size, fp, filename);
fclose(fp);
return 0;
}
@ -525,8 +545,6 @@ static void md_print(const unsigned char *md, size_t len)
static int info_cmd(int argc, char *argv[])
{
image_t *image;
uint64_t image_offset;
uint64_t image_size;
fip_toc_header_t toc_header;
if (argc != 2)
@ -544,31 +562,24 @@ static int info_cmd(int argc, char *argv[])
(unsigned long long)toc_header.flags);
}
image_offset = sizeof(fip_toc_header_t) +
(sizeof(fip_toc_entry_t) * (nr_images + 1));
for (image = image_head; image != NULL; image = image->next) {
image_desc_t *desc;
desc = lookup_image_desc_from_uuid(&image->uuid);
desc = lookup_image_desc_from_uuid(&image->toc_e.uuid);
assert(desc != NULL);
printf("%s: ", desc->name);
image_size = image->size;
printf("offset=0x%llX, size=0x%llX",
(unsigned long long)image_offset,
(unsigned long long)image_size);
if (desc != NULL)
printf(", cmdline=\"--%s\"",
desc->cmdline_name);
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);
if (verbose) {
unsigned char md[SHA256_DIGEST_LENGTH];
SHA256(image->buffer, image_size, md);
SHA256(image->buffer, image->toc_e.size, md);
printf(", sha256=");
md_print(md, sizeof(md));
}
putchar('\n');
image_offset += image_size;
}
free_images();
@ -581,19 +592,14 @@ static void info_usage(void)
exit(1);
}
static int pack_images(const char *filename, uint64_t toc_flags)
static int pack_images(const char *filename, uint64_t toc_flags, unsigned long align)
{
FILE *fp;
image_t *image;
fip_toc_header_t *toc_header;
fip_toc_entry_t *toc_entry;
char *buf;
uint64_t entry_offset, buf_size, payload_size;
/* Calculate total payload size and allocate scratch buffer. */
payload_size = 0;
for (image = image_head; image != NULL; image = image->next)
payload_size += image->size;
uint64_t entry_offset, buf_size, payload_size = 0;
buf_size = sizeof(fip_toc_header_t) +
sizeof(fip_toc_entry_t) * (nr_images + 1);
@ -611,19 +617,16 @@ static int pack_images(const char *filename, uint64_t toc_flags)
entry_offset = buf_size;
for (image = image_head; image != NULL; image = image->next) {
memcpy(&toc_entry->uuid, &image->uuid, sizeof(uuid_t));
toc_entry->offset_address = entry_offset;
toc_entry->size = image->size;
toc_entry->flags = 0;
entry_offset += toc_entry->size;
toc_entry++;
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. */
memcpy(&toc_entry->uuid, &uuid_null, sizeof(uuid_t));
memset(toc_entry, 0, sizeof(*toc_entry));
toc_entry->offset_address = entry_offset;
toc_entry->size = 0;
toc_entry->flags = 0;
/* Generate the FIP file. */
fp = fopen(filename, "w");
@ -633,16 +636,18 @@ static int pack_images(const char *filename, uint64_t toc_flags)
if (verbose)
log_dbgx("Metadata size: %zu bytes", buf_size);
if (fwrite(buf, 1, buf_size, fp) != buf_size)
log_errx("Failed to write image to %s", filename);
xfwrite(buf, buf_size, fp, filename);
free(buf);
if (verbose)
log_dbgx("Payload size: %zu bytes", payload_size);
for (image = image_head; image != NULL; image = image->next)
if (fwrite(image->buffer, 1, image->size, fp) != image->size)
log_errx("Failed to write image to %s", filename);
for (image = image_head; image != NULL; image = image->next) {
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;
@ -675,8 +680,7 @@ static void update_fip(void)
desc->cmdline_name,
desc->action_arg);
}
remove_image(old_image);
add_image(new_image);
replace_image(new_image);
} else {
if (verbose)
log_dbgx("Adding image %s",
@ -699,6 +703,24 @@ static void parse_plat_toc_flags(const char *arg, unsigned long long *toc_flags)
*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, 10);
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;
@ -719,6 +741,7 @@ 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();
@ -726,6 +749,7 @@ static int create_cmd(int argc, char *argv[])
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);
@ -747,6 +771,9 @@ static int create_cmd(int argc, char *argv[])
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 };
@ -782,7 +809,7 @@ static int create_cmd(int argc, char *argv[])
update_fip();
pack_images(argv[0], toc_flags);
pack_images(argv[0], toc_flags, align);
free_images();
return 0;
}
@ -791,8 +818,10 @@ static void create_usage(void)
{
toc_entry_t *toc_entry = toc_entries;
printf("fiptool create [--blob uuid=...,file=...] "
"[--plat-toc-flags <value>] [opts] FIP_FILENAME\n");
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 "
@ -812,12 +841,14 @@ static int update_cmd(int argc, char *argv[])
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,
@ -865,6 +896,9 @@ static int update_cmd(int argc, char *argv[])
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;
@ -882,7 +916,7 @@ static int update_cmd(int argc, char *argv[])
if (outfile[0] == '\0')
snprintf(outfile, sizeof(outfile), "%s", argv[0]);
if (access(outfile, F_OK) == 0)
if (access(argv[0], F_OK) == 0)
parse_fip(argv[0], &toc_header);
if (pflag)
@ -891,7 +925,7 @@ static int update_cmd(int argc, char *argv[])
update_fip();
pack_images(outfile, toc_flags);
pack_images(outfile, toc_flags, align);
free_images();
return 0;
}
@ -900,8 +934,10 @@ static void update_usage(void)
{
toc_entry_t *toc_entry = toc_entries;
printf("fiptool update [--blob uuid=...,file=...] [--out FIP_FILENAME] "
"[--plat-toc-flags <value>] [opts] FIP_FILENAME\n");
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");
@ -1037,8 +1073,9 @@ static void unpack_usage(void)
{
toc_entry_t *toc_entry = toc_entries;
printf("fiptool unpack [--blob uuid=...,file=...] [--force] "
"[--out <path>] [opts] FIP_FILENAME\n");
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 "
@ -1061,12 +1098,14 @@ static int remove_cmd(int argc, char *argv[])
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');
@ -1087,6 +1126,9 @@ static int remove_cmd(int argc, char *argv[])
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 };
@ -1151,7 +1193,7 @@ static int remove_cmd(int argc, char *argv[])
}
}
pack_images(outfile, toc_header.flags);
pack_images(outfile, toc_header.flags, align);
free_images();
return 0;
}
@ -1160,8 +1202,10 @@ static void remove_usage(void)
{
toc_entry_t *toc_entry = toc_entries;
printf("fiptool remove [--blob uuid=...] [--force] "
"[--out FIP_FILENAME] [opts] FIP_FILENAME\n");
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");
@ -1211,7 +1255,7 @@ static int help_cmd(int argc, char *argv[])
static void usage(void)
{
printf("usage: [--verbose] fiptool <command> [<args>]\n");
printf("usage: fiptool [--verbose] <command> [<args>]\n");
printf("Global options supported:\n");
printf(" --verbose\tEnable verbose output for all commands.\n");
fputc('\n', stderr);

8
tools/fiptool/fiptool.h
View File

@ -34,6 +34,7 @@
#include <stddef.h>
#include <stdint.h>
#include "firmware_image_package.h"
#include "uuid.h"
#define NELEM(x) (sizeof (x) / sizeof *(x))
@ -61,10 +62,9 @@ typedef struct image_desc {
} image_desc_t;
typedef struct image {
uuid_t uuid;
size_t size;
void *buffer;
struct image *next;
struct fip_toc_entry toc_e;
void *buffer;
struct image *next;
} image_t;
typedef struct cmd {