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installer.c
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installer.c
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/*
* Copyright (c) 2015, Intel Corporation
* All rights reserved.
*
* Author: Jeremy Compostella <jeremy.compostella@intel.com>
*
* 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.
*
* 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.
*/
#include <efi.h>
#include <efiapi.h>
#include <efilib.h>
#include <stdio.h>
#include <transport.h>
#include <version.h>
#include "lib.h"
#include "uefi_utils.h"
#include "protocol.h"
#include "flash.h"
#include "gpt.h"
#include "sparse.h"
#include "sparse_format.h"
#include "fastboot.h"
#include "fastboot_oem.h"
#include "text_parser.h"
#include "android.h"
#include "slot.h"
#include "security.h"
#include "security_interface.h"
#include "security_efi.h"
#ifdef USE_UI
#include "installer_ui.h"
#include "ui.h"
#endif
#ifdef USE_TPM
#include "tpm2_security.h"
#endif
static BOOLEAN last_cmd_succeeded;
static fastboot_handle fastboot_flash_cmd;
static fastboot_handle fastboot_erase_cmd;
static EFI_FILE_IO_INTERFACE *file_io_interface;
static data_callback_t fastboot_rx_cb, fastboot_tx_cb;
static BOOLEAN need_tx_cb;
static char *fastboot_cmd_buf;
static UINTN fastboot_cmd_buf_len;
static char command_buffer[256]; /* Large enough to fit long filename
on flash command. */
static struct download_buffer *dl;
#define inst_perror(ret, x, ...) do { \
fastboot_fail(x ": %r", ##__VA_ARGS__, ret); \
} while (0)
#define MAX_LABEL_LEN 64
static void flush_tx_buffer(void)
{
while (need_tx_cb) {
need_tx_cb = FALSE;
fastboot_tx_cb(NULL, 0);
}
}
static void do_erase(INTN argc, CHAR8 **argv)
{
fastboot_erase_cmd(argc, argv);
flush_tx_buffer();
}
static EFI_STATUS find_partition(CHAR8 *target)
{
EFI_STATUS ret;
CHAR16 *target16;
struct gpt_partition_interface gparti;
target16 = stra_to_str(target);
if (!target16) {
fastboot_fail("Failed to convert target to CHAR16");
return EFI_OUT_OF_RESOURCES;
}
ret = gpt_get_partition_by_label(target16, &gparti, LOGICAL_UNIT_USER);
FreePool(target16);
return ret;
}
static CHAR8 *get_target(CHAR8 *target)
{
EFI_STATUS ret;
CHAR16 *target16;
const CHAR16 *label16;
static CHAR8 label[MAX_LABEL_LEN];
CHAR8 *ret_target = NULL;
ret = find_partition(target);
if (!EFI_ERROR(ret))
return target;
if (EFI_ERROR(ret) && ret != EFI_NOT_FOUND)
return NULL;
target16 = stra_to_str(target);
if (!target16)
return NULL;
label16 = slot_label(target16);
if (!label16) {
ret_target = target;
goto out;
}
if (StrLen(label16) + 1 > sizeof(label)) {
fastboot_fail("Label name is too long");
goto out;
}
ret = str_to_stra(label, label16, sizeof(label));
if (!EFI_ERROR(ret))
ret_target = label;
out:
if (target16)
FreePool(target16);
return ret_target;
}
static void installer_erase(INTN argc, CHAR8 **argv)
{
if (argc != 2) {
fastboot_fail("Erase command requires exactly 2 arguments");
return;
}
argv[1] = get_target(argv[1]);
if (!argv[1])
return;
do_erase(argc, argv);
}
static void installer_flash_buffer(void *data, unsigned size,
INTN argc, CHAR8 **argv)
{
void *data_save = dl->data;
dl->data = data;
dl->size = size;
fastboot_flash_cmd(argc, argv);
flush_tx_buffer();
dl->data = data_save;
dl->size = 0;
}
static EFI_STATUS read_file(EFI_FILE *file, UINTN size, void *data)
{
EFI_STATUS ret;
UINTN nsize = size;
ret = uefi_call_wrapper(file->Read, 3, file, &nsize, data);
if (EFI_ERROR(ret)) {
inst_perror(ret, "Failed to read file");
return ret;
}
if (size != nsize) {
fastboot_fail("Failed to read %d bytes (only %d read)",
size, nsize);
return EFI_INVALID_PARAMETER;
}
return ret;
}
typedef struct flash_buffer {
struct sparse_header sph;
struct chunk_header skip_ckh;
union {
struct chunk_header ckh;
char data[1];
} d;
char ckh_data[1];
} __attribute__((__packed__)) flash_buffer_t;
/*when flash big chunks and in two image should add read_flags*/
static EFI_STATUS installer_flash_big_chunk_multiple(EFI_FILE **file, UINTN *read_flags,
UINTN file_size, UINTN *remaining_data, flash_buffer_t *fb, UINTN argc, CHAR8 **argv)
{
EFI_STATUS ret = EFI_INVALID_PARAMETER;
UINTN payload_size, read_size, already_read, ckh_blks, data_size;
const UINTN MAX_DATA_SIZE = dl->max_size - offsetof(flash_buffer_t, ckh_data);
const UINTN MAX_BLKS = MAX_DATA_SIZE / fb->sph.blk_sz;
const UINTN HEADER_SIZE = offsetof(flash_buffer_t, d);
struct chunk_header *ckh;
void *read_ptr;
ckh = &fb->d.ckh;
payload_size = ckh->total_sz - sizeof(*ckh);
fb->sph.total_chunks = 2; /* skip and data chunks. */
for (ckh_blks = ckh->chunk_sz; ckh_blks; ckh_blks -= ckh->chunk_sz) {
ckh->chunk_sz = min(MAX_BLKS, ckh_blks);
data_size = ckh->chunk_sz * fb->sph.blk_sz;
ckh->total_sz = sizeof(*ckh) + data_size;
fb->sph.total_blks = fb->skip_ckh.chunk_sz + ckh->chunk_sz;
installer_flash_buffer(fb, ckh->total_sz + HEADER_SIZE, argc, argv);
if (!last_cmd_succeeded)
return EFI_INVALID_PARAMETER;
payload_size -= data_size;
if (!payload_size)
break;
/* Move the incomplete data from the end to the
beginning of the buffer. */
read_ptr = fb->ckh_data;
read_size = min(payload_size, MAX_DATA_SIZE);
if (data_size < MAX_DATA_SIZE) {
already_read = MAX_DATA_SIZE - data_size;
ret = memcpy_s(read_ptr, MAX_DATA_SIZE, fb->d.data + ckh->total_sz, already_read);
if (EFI_ERROR(ret))
return ret;
read_size -= already_read;
read_ptr += already_read;
if (read_size > file_size) {
ret = read_file(file[*read_flags], file_size, read_ptr);
if (EFI_ERROR(ret))
return ret;
read_size -= file_size;
read_ptr += file_size;
*remaining_data -= file_size;
(*read_flags)++;
}
}
ret = read_file(file[*read_flags], read_size, read_ptr);
if (EFI_ERROR(ret))
return ret;
*remaining_data -= read_size;
fb->skip_ckh.chunk_sz += ckh->chunk_sz;
}
if (payload_size)
return EFI_INVALID_PARAMETER;
return EFI_SUCCESS;
}
/* This function splits a chunk too large to fit into a
dl->max_size buffer into smaller chunks and flash them. */
static EFI_STATUS installer_flash_big_chunk(EFI_FILE *file, UINTN *remaining_data,
flash_buffer_t *fb, UINTN argc, CHAR8 **argv)
{
EFI_STATUS ret = EFI_INVALID_PARAMETER;
UINTN payload_size, read_size, already_read, ckh_blks, data_size;
const UINTN MAX_DATA_SIZE = dl->max_size - offsetof(flash_buffer_t, ckh_data);
const UINTN MAX_BLKS = MAX_DATA_SIZE / fb->sph.blk_sz;
const UINTN HEADER_SIZE = offsetof(flash_buffer_t, d);
struct chunk_header *ckh;
void *read_ptr;
ckh = &fb->d.ckh;
payload_size = ckh->total_sz - sizeof(*ckh);
fb->sph.total_chunks = 2; /* skip and data chunks. */
for (ckh_blks = ckh->chunk_sz; ckh_blks; ckh_blks -= ckh->chunk_sz) {
ckh->chunk_sz = min(MAX_BLKS, ckh_blks);
data_size = ckh->chunk_sz * fb->sph.blk_sz;
ckh->total_sz = sizeof(*ckh) + data_size;
fb->sph.total_blks = fb->skip_ckh.chunk_sz + ckh->chunk_sz;
installer_flash_buffer(fb, ckh->total_sz + HEADER_SIZE, argc, argv);
if (!last_cmd_succeeded)
return EFI_INVALID_PARAMETER;
payload_size -= data_size;
if (!payload_size)
break;
/* Move the incomplete data from the end to the
beginning of the buffer. */
read_ptr = fb->ckh_data;
read_size = min(payload_size, MAX_DATA_SIZE);
if (data_size < MAX_DATA_SIZE) {
already_read = MAX_DATA_SIZE - data_size;
ret = memcpy_s(read_ptr, MAX_DATA_SIZE, fb->d.data + ckh->total_sz, already_read);
if (EFI_ERROR(ret))
return ret;
read_size -= already_read;
read_ptr += already_read;
}
ret = read_file(file, read_size, read_ptr);
if (EFI_ERROR(ret))
return ret;
*remaining_data -= read_size;
fb->skip_ckh.chunk_sz += ckh->chunk_sz;
}
if (payload_size)
return EFI_INVALID_PARAMETER;
return EFI_SUCCESS;
}
/*this function splits a huge sparse file and put together the two image*/
static void installer_split_and_joint_flash(CHAR16 **filename,
UINTN *size, UINTN num, UINTN argc, CHAR8 **argv)
{
EFI_STATUS ret;
flash_buffer_t *fb;
UINTN read_flags = 0;
struct sparse_header sph;
struct chunk_header *ckh;
UINTN read_size, flash_size, already_read = 0, remaining_data = 0;
void *read_ptr;
INTN nb_chunks;
EFI_FILE *file[num];
UINT32 blk_count;
memset_s(file, sizeof(file), 0, sizeof(file));
const UINTN HEADER_SIZE = offsetof(flash_buffer_t, d);
const UINTN MAX_DATA_SIZE = dl->max_size - HEADER_SIZE;
for (UINTN i = 0; i < num; i++) {
remaining_data = remaining_data + size[i];
ret = uefi_open_file(file_io_interface, filename[i], &file[i]);
if (EFI_ERROR(ret)) {
inst_perror(ret, "Failed to open %s file", filename[i]);
return;
}
}
ret = read_file(file[0], sizeof(sph), &sph);
if (EFI_ERROR(ret))
return;
remaining_data -= sizeof(sph);
size[read_flags] -= sizeof(sph);
if (!is_sparse_image((void *) &sph, sizeof(sph))) {
fastboot_fail("sparse file expected");
return;
}
fb = dl->data;
ret = memcpy_s(&fb->sph, sizeof(fb->sph), &sph, sizeof(sph));
if (EFI_ERROR(ret))
return;
/* Sparse skip chunk. */
fb->skip_ckh.chunk_type = CHUNK_TYPE_DONT_CARE;
fb->skip_ckh.total_sz = sizeof(fb->skip_ckh);
nb_chunks = sph.total_chunks;
read_size = MAX_DATA_SIZE;
read_ptr = fb->d.data;
blk_count = 0;
while (nb_chunks > 0 && remaining_data > 0) {
fb->sph.total_chunks = 1;
fb->sph.total_blks = fb->skip_ckh.chunk_sz = blk_count;
if (remaining_data < read_size)
read_size = remaining_data;
/* Read a new piece of the input sparse file. */
ret = read_file(file[read_flags], read_size, read_ptr);
if (EFI_ERROR(ret))
goto exit;
remaining_data -= read_size;
size[read_flags] -= read_size;
/* Process the loaded chunks to build the new header
and the skip chunk. */
flash_size = HEADER_SIZE;
ckh = &fb->d.ckh;
while ((void *)ckh + sizeof(*ckh) <= read_ptr + read_size &&
(void *)ckh + ckh->total_sz <= read_ptr + read_size) {
if (nb_chunks == 0)
goto exit;
flash_size += ckh->total_sz;
fb->sph.total_blks += ckh->chunk_sz;
blk_count += ckh->chunk_sz;
fb->sph.total_chunks++;
nb_chunks--;
ckh = (void *)ckh + ckh->total_sz;
}
/* chunk is too big to fit in the download buffer. */
if (flash_size == HEADER_SIZE) {
if (ckh->chunk_type != CHUNK_TYPE_RAW ||
remaining_data < ckh->total_sz - MAX_DATA_SIZE) {
fastboot_fail("Corrupted sparse file");
goto exit;
}
blk_count += ckh->chunk_sz;
nb_chunks--;
ret = installer_flash_big_chunk_multiple(file, &read_flags,
size[read_flags], &remaining_data, fb, argc, argv);
if (EFI_ERROR(ret))
goto exit;
read_size = MAX_DATA_SIZE;
read_ptr = fb->d.data;
continue;
}
installer_flash_buffer(dl->data, flash_size, argc, argv);
if (!last_cmd_succeeded)
goto exit;
/* Move the incomplete chunk from the end to the
beginning of the buffer. */
if (dl->data + flash_size < read_ptr + read_size) {
already_read = read_ptr + read_size - (void *)ckh;
ret = memcpy_s(fb->d.data, MAX_DATA_SIZE, ckh, already_read);
if (EFI_ERROR(ret))
goto exit;
read_size = MAX_DATA_SIZE - already_read;
read_ptr = fb->d.data + already_read;
} else {
read_size = MAX_DATA_SIZE;
read_ptr = fb->d.data;
}
if ((read_size > size[read_flags]) && (read_flags != (num - 1))) {
ret = read_file(file[read_flags], size[read_flags], read_ptr);
if (EFI_ERROR(ret))
goto exit;
ret = memcpy_s(fb->d.data+already_read, MAX_DATA_SIZE, read_ptr, size[read_flags]);
if (EFI_ERROR(ret))
goto exit;
read_size = read_size - size[read_flags];
remaining_data -= size[read_flags];
read_ptr = fb->d.data+already_read+size[read_flags];
read_flags++;
}
}
exit:
for (UINTN i = 0; i < num; i++)
uefi_call_wrapper(file[i]->Close, 1, file[i]);
}
/* This function splits a huge sparse file into smaller ones and flash
them. */
static void installer_split_and_flash(CHAR16 *filename, UINTN size,
UINTN argc, CHAR8 **argv)
{
EFI_STATUS ret;
flash_buffer_t *fb;
struct sparse_header sph;
struct chunk_header *ckh;
UINTN read_size, flash_size, already_read, remaining_data = size;
void *read_ptr;
INTN nb_chunks;
EFI_FILE *file;
UINT32 blk_count;
const UINTN HEADER_SIZE = offsetof(flash_buffer_t, d);
const UINTN MAX_DATA_SIZE = dl->max_size - HEADER_SIZE;
ret = uefi_open_file(file_io_interface, filename, &file);
if (EFI_ERROR(ret)) {
inst_perror(ret, "Failed to open %s file", filename);
return;
}
ret = read_file(file, sizeof(sph), &sph);
if (EFI_ERROR(ret))
return;
remaining_data -= sizeof(sph);
if (!is_sparse_image((void *) &sph, sizeof(sph))) {
fastboot_fail("sparse file expected");
return;
}
fb = dl->data;
/* New sparse header. */
ret = memcpy_s(&fb->sph, sizeof(fb->sph), &sph, sizeof(sph));
if (EFI_ERROR(ret))
return;
/* Sparse skip chunk. */
fb->skip_ckh.chunk_type = CHUNK_TYPE_DONT_CARE;
fb->skip_ckh.total_sz = sizeof(fb->skip_ckh);
nb_chunks = sph.total_chunks;
read_size = MAX_DATA_SIZE;
read_ptr = fb->d.data;
blk_count = 0;
while (nb_chunks > 0 && remaining_data > 0) {
fb->sph.total_chunks = 1;
fb->sph.total_blks = fb->skip_ckh.chunk_sz = blk_count;
if (remaining_data < read_size)
read_size = remaining_data;
/* Read a new piece of the input sparse file. */
ret = read_file(file, read_size, read_ptr);
if (EFI_ERROR(ret))
goto exit;
remaining_data -= read_size;
/* Process the loaded chunks to build the new header
and the skip chunk. */
flash_size = HEADER_SIZE;
ckh = &fb->d.ckh;
while ((void *)ckh + sizeof(*ckh) <= read_ptr + read_size &&
(void *)ckh + ckh->total_sz <= read_ptr + read_size) {
if (nb_chunks == 0) {
fastboot_fail("Corrupted sparse file: too many chunks");
goto exit;
}
flash_size += ckh->total_sz;
fb->sph.total_blks += ckh->chunk_sz;
blk_count += ckh->chunk_sz;
fb->sph.total_chunks++;
nb_chunks--;
ckh = (void *)ckh + ckh->total_sz;
}
/* chunk is too big to fit in the download buffer. */
if (flash_size == HEADER_SIZE) {
if (ckh->chunk_type != CHUNK_TYPE_RAW ||
remaining_data < ckh->total_sz - MAX_DATA_SIZE) {
fastboot_fail("Corrupted sparse file");
goto exit;
}
blk_count += ckh->chunk_sz;
nb_chunks--;
ret = installer_flash_big_chunk(file, &remaining_data,
fb, argc, argv);
if (EFI_ERROR(ret))
goto exit;
read_size = MAX_DATA_SIZE;
read_ptr = fb->d.data;
continue;
}
installer_flash_buffer(dl->data, flash_size, argc, argv);
if (!last_cmd_succeeded)
goto exit;
/* Move the incomplete chunk from the end to the
beginning of the buffer. */
if (dl->data + flash_size < read_ptr + read_size) {
already_read = read_ptr + read_size - (void *)ckh;
ret = memcpy_s(fb->d.data, MAX_DATA_SIZE, ckh, already_read);
if (EFI_ERROR(ret))
goto exit;
read_size = MAX_DATA_SIZE - already_read;
read_ptr = fb->d.data + already_read;
} else {
read_size = MAX_DATA_SIZE;
read_ptr = fb->d.data;
}
}
exit:
uefi_call_wrapper(file->Close, 1, file);
}
static void installer_flash_cmd(INTN argc, CHAR8 **argv)
{
EFI_STATUS ret;
CHAR16 *filename;
INTN num = argc - 2;
CHAR16 *numname[num];
void *data;
UINTN size;
UINTN numsize[num];
if (argc < 3) {
fastboot_fail("Flash command requires exactly more then 3 arguments");
return;
}
for (int i = 0; i < num; i++)
numname[i] = NULL;
if (argc > 3) {
argc = 2;
for (int i = 0; i < num; i++) {
numname[i] = stra_to_str(argv[i+2]);
if (!numname[i]) {
fastboot_fail("Failed to convert CHAR8 numname to CHAR16");
return;
}
ret = uefi_get_file_size(file_io_interface, numname[i], &numsize[i]);
if (EFI_ERROR(ret)) {
inst_perror(ret, "Failed to get %s file size", numname[i]);
goto exit;
}
}
if (get_current_state() == LOCKED) {
error(L"Installer: Flash %a is prohibited in %a state.", argv[1],
get_current_state_string());
fastboot_fail("Installer: Prohibited command in %a state.",
get_current_state_string());
return;
}
argv[1] = get_target(argv[1]);
if (!argv[1])
goto exit;
ret = find_partition(argv[1]);
switch (ret) {
case EFI_SUCCESS:
do_erase(argc, argv);
if (!last_cmd_succeeded)
goto exit;
break;
case EFI_NOT_FOUND:
break;
default:
inst_perror(ret, "Failed to get partition information");
goto exit;
}
installer_split_and_joint_flash(numname, numsize, num, argc, argv);
} else {
/* The fastboot flash command does not want the file parameter. */
argc--;
filename = stra_to_str(argv[2]);
if (!filename) {
fastboot_fail("Failed to convert CHAR8 filename to CHAR16");
return;
}
if (get_current_state() == LOCKED) {
error(L"Installer: Flash %a is prohibited in %a state.", argv[1],
get_current_state_string());
fastboot_fail("Installer: Prohibited command in %a state.",
get_current_state_string());
return;
}
ret = uefi_get_file_size(file_io_interface, filename, &size);
if (EFI_ERROR(ret)) {
inst_perror(ret, "Failed to get %s file size", filename);
goto exit;
}
argv[1] = get_target(argv[1]);
if (!argv[1])
goto exit;
ret = find_partition(argv[1]);
switch (ret) {
case EFI_SUCCESS:
do_erase(argc, argv);
if (!last_cmd_succeeded)
goto exit;
break;
case EFI_NOT_FOUND:
break;
default:
inst_perror(ret, "Failed to get partition information");
goto exit;
}
if (size > dl->max_size) {
installer_split_and_flash(filename, size, argc, argv);
goto exit;
}
ret = uefi_read_file(file_io_interface, filename, &data, &size);
if (EFI_ERROR(ret)) {
inst_perror(ret, "Unable to read file %s", filename);
goto exit;
}
installer_flash_buffer(data, size, argc, argv);
FreePool(data);
}
exit:
if (num == 1) {
FreePool(filename);
} else {
for (INTN i = 0; i < num; i++)
if (numname[i])
FreePool(numname[i]);
}
}
#define SIZE_OF_FILENAME (label_length + 5)
static CHAR16 *get_format_image_filename(CHAR8 *label)
{
EFI_STATUS ret;
CHAR8 *filename;
CHAR16 *filename16;
UINTN label_length;
if (!strcmp(label, (CHAR8 *)"data"))
label = (CHAR8 *)"userdata";
label_length = strlena(label);
filename = AllocateZeroPool(SIZE_OF_FILENAME);
if (!filename) {
fastboot_fail("Unable to allocate CHAR8 filename buffer");
return NULL;
}
ret = memcpy_s(filename, SIZE_OF_FILENAME, label, label_length);
if (EFI_ERROR(ret)) {
filename16 = NULL;
goto out;
}
ret = memcpy_s(filename + label_length, SIZE_OF_FILENAME - label_length, ".img", 4);
if (EFI_ERROR(ret)) {
filename16 = NULL;
goto out;
}
filename16 = stra_to_str(filename);
if (!filename16)
fastboot_fail("Unable to allocate CHAR16 filename buffer");
out:
FreePool(filename);
return filename16;
}
/* Simulate the fastboot host format command:
1. get a filesystem image from a file;
2. erase the partition;
3. flash the filesystem image; */
static void installer_format(INTN argc, CHAR8 **argv)
{
EFI_STATUS ret;
void *data = NULL;
UINTN size;
CHAR16 *filename;
if (argc != 2 && argc != 3) {
fastboot_fail("Format command requires 2 or 3 arguments");
return;
}
filename = get_format_image_filename(argv[argc - 1]);
if (!filename)
return;
ret = uefi_read_file(file_io_interface, filename, &data, &size);
if (ret == EFI_NOT_FOUND && !StrCmp(L"userdata.img", filename)) {
fastboot_info("userdata.img is missing, cannot format %a", argv[1]);
fastboot_info("Android fs_mgr will manage this");
} else if (EFI_ERROR(ret)) {
inst_perror(ret, "Unable to read file %s", filename);
goto free_filename;
}
argv[1] = get_target(argv[argc - 1]);
if (!argv[1])
goto free_data;
argc = 2;
do_erase(argc, argv);
if (!last_cmd_succeeded)
goto free_data;
if (data)
installer_flash_buffer(data, size, argc, argv);
free_data:
FreePool(data);
free_filename:
FreePool(filename);
}
static void installer_boot(INTN argc, CHAR8 **argv)
{
EFI_STATUS ret;
VOID *bootimage;
UINTN size;
CHAR16 *filename;
if (argc != 2) {
fastboot_fail("boot command takes one parameter");
return;
}
filename = stra_to_str((CHAR8 *)argv[1]);
if (!filename) {
fastboot_fail("Failed to convert filename to CHAR16");
return;
}
ret = uefi_read_file(file_io_interface, filename, &bootimage, &size);
FreePool(filename);
if (EFI_ERROR(ret)) {
inst_perror(ret, "Failed to read %a file", argv[1]);
return;
}
ret = android_image_start_buffer(g_parent_image, bootimage, NULL,
NORMAL_BOOT, BOOT_STATE_ORANGE, NULL,
NULL, NULL);
if (EFI_ERROR(ret))
inst_perror(ret, "Failed to start %s image", filename);
else
fastboot_okay("");
}
static struct command {
BOOLEAN optional;
char *cmd;
} *commands;
static UINTN command_nb;
static UINTN current_command;
static void free_commands(void)
{
UINTN i;
if (!commands)
return;
for (i = 0; i < command_nb; i++)
if (commands[i].cmd)
FreePool(commands[i].cmd);
FreePool(commands);
commands = NULL;
command_nb = 0;
current_command = 0;
}
static EFI_STATUS create_new_command(struct command *command, char *str)
{
char *cmd = str;
command->optional = FALSE;
if (*str == '[') {
str++;
cmd = (char *)strchr((CHAR8 *)str, ']');
if (!cmd)
return EFI_INVALID_PARAMETER;
*cmd++ = '\0';
while (*str) {
switch (*str++) {
case 'o':
command->optional = TRUE;
break;
default:
return EFI_INVALID_PARAMETER;
}
}
while (*cmd && isspace(*cmd))
cmd++;
if (!*cmd)
return EFI_INVALID_PARAMETER;
}
command->cmd = strdup(cmd);
if (!command->cmd)
return EFI_OUT_OF_RESOURCES;
return EFI_SUCCESS;
}
#define SIZE_OF_NEW_COMMANDS ((command_nb + 1) * sizeof(*new_commands))
static EFI_STATUS store_command(char *command, VOID *context _unused)
{
EFI_STATUS ret;
struct command *new_commands;
new_commands = AllocatePool(SIZE_OF_NEW_COMMANDS);
if (!new_commands) {
free_commands();
return EFI_OUT_OF_RESOURCES;
}
ret = memcpy_s(new_commands, SIZE_OF_NEW_COMMANDS, commands, command_nb * sizeof(*commands));
if (EFI_ERROR(ret)) {
free_commands();
return ret;
}
ret = create_new_command(&new_commands[command_nb], command);
if (EFI_ERROR(ret)) {
free_commands();
return ret;
}
if (commands)
FreePool(commands);
commands = new_commands;
command_nb++;
return EFI_SUCCESS;
}
static char *next_command()
{
if (command_nb == current_command) {
free_commands();
return NULL;
}
return commands[current_command++].cmd;
}
static void batch(INTN argc, CHAR8 **argv)
{
EFI_STATUS ret;
void *data;
UINTN size;
CHAR16 *filename;
if (argc != 2) {
fastboot_fail("Batch command takes one parameter");
return;
}
filename = stra_to_str(argv[1]);
if (!filename) {
fastboot_fail("Failed to convert CHAR8 filename to CHAR16");
return;
}
ret = uefi_read_file(file_io_interface, filename, &data, &size);
if (EFI_ERROR(ret)) {
inst_perror(ret, "Failed to read %s file", filename);
FreePool(filename);
return;
}
FreePool(filename);
ret = parse_text_buffer(data, size, store_command, NULL);
FreePool(data);
if (EFI_ERROR(ret))
inst_perror(ret, "Failed to parse batch file");
else
fastboot_okay("");
}
static CHAR8 *build_default_options()
{
EFI_STATUS ret;
static CHAR8 options[64];
const char cmd_prefix[] = "--batch installer";
const char file_suffix[] = ".cmd";
char *str;
if (*options)
return options;
ret = memcpy_s(options, sizeof(options), cmd_prefix, sizeof(cmd_prefix) - 1);
if (EFI_ERROR(ret))
return NULL;
str = (char *)options + strlen(options);
#ifdef HAL_AUTODETECT
char *device = get_property_device();
if (device) {
*str++ = '_';
while (*device)
*str++ = *device++;
}
#endif
ret = memcpy_s(str, sizeof(file_suffix) - 1, file_suffix, sizeof(file_suffix) - 1);
if (EFI_ERROR(ret))
return NULL;
return options;
}
static void usage(__attribute__((__unused__)) INTN argc,
__attribute__((__unused__)) CHAR8 **argv)
{
Print(L"Usage: installer [OPTIONS | COMMANDS]\n");
Print(L" installer is an EFI application acting like the fastboot command.\n\n");
Print(L" COMMANDS fastboot commands (cf. the fastboot manual page)\n");
Print(L" -i include the device which is loaded from, must be the first option\n");
Print(L" --help, -h print this help and exit\n");
Print(L" --version, -v print Installer version and exit\n");
Print(L" --batch, -b FILE run all the fastboot commands of FILE\n");
Print(L"If no option is provided, the installer assumes '%a'\n", build_default_options());