From: Edmund Henniges <eh@xxxxxxxxx>
The fastboot specification describes other protocols beyond USB. Allow
these to reuse the generic parts of the existing fastboot code when they
are implemented.
Most of the changes in common/fastboot.c are due to the renaming of struct
f_fastboot *f_fb to struct fastboot *fb.
Signed-off-by: Edmund Henniges <eh@xxxxxxxxx>
Signed-off-by: Daniel Glöckner <dg@xxxxxxxxx>
---
common/Kconfig | 35 ++
common/Makefile | 1 +
common/fastboot.c | 955 +++++++++++++++++++++++++++++++
drivers/usb/gadget/Kconfig | 3 +-
drivers/usb/gadget/f_fastboot.c | 968 ++------------------------------
drivers/usb/gadget/multi.c | 5 +-
include/fastboot.h | 66 +++
include/usb/fastboot.h | 34 +-
include/usb/gadget-multi.h | 2 +-
9 files changed, 1105 insertions(+), 964 deletions(-)
create mode 100644 common/fastboot.c
create mode 100644 include/fastboot.h
diff --git a/common/Kconfig b/common/Kconfig
index 02ef3631e..bed7e49db 100644
--- a/common/Kconfig
+++ b/common/Kconfig
@@ -114,6 +114,9 @@ config USBGADGET_START
config BOOT
bool
+config FASTBOOT_BASE
+ bool
+
menu "General Settings"
config LOCALVERSION
@@ -1013,6 +1016,38 @@ config PBL_OPTEE
endmenu
+config FASTBOOT_SPARSE
+ bool
+ depends on FASTBOOT_BASE
+ select IMAGE_SPARSE
+ prompt "Enable Fastboot sparse image support"
+ help
+ Sparse images are a way for the fastboot protocol to write
+ images that are bigger than the available memory. If unsure,
+ say yes here.
+
+config FASTBOOT_BUF
+ bool
+ depends on FASTBOOT_BASE
+ prompt "Download files to temporary buffer instead of file"
+ help
+ With this option enabled the fastboot code will download files to a
+ temporary buffer instead of a temporary file. Normally you want to
+ use a file as this also works when your memory is fragmented. However,
+ in some special cases, when the file consumer also better copes with
+ a buffer, then using a buffer might be better.
+
+ Say no here unless you know what you are doing.
+
+config FASTBOOT_CMD_OEM
+ bool
+ depends on FASTBOOT_BASE
+ prompt "Enable OEM commands"
+ help
+ This option enables the fastboot "oem" group of commands. They allow to
+ executing arbitrary barebox commands and may be disabled in secure
+ environments.
+
endmenu
menu "Debugging"
diff --git a/common/Makefile b/common/Makefile
index 84463b4d4..4222bce1c 100644
--- a/common/Makefile
+++ b/common/Makefile
@@ -69,6 +69,7 @@ obj-$(CONFIG_SERIAL_DEV_BUS) += serdev.o
obj-$(CONFIG_USBGADGET_START) += usbgadget.o
pbl-$(CONFIG_PBL_OPTEE) += optee.o
obj-$(CONFIG_BOOTM_OPTEE) += optee.o
+obj-$(CONFIG_FASTBOOT_BASE) += fastboot.o
ifdef CONFIG_PASSWORD
diff --git a/common/fastboot.c b/common/fastboot.c
new file mode 100644
index 000000000..58a095efa
--- /dev/null
+++ b/common/fastboot.c
@@ -0,0 +1,955 @@
+/*
+ * (C) Copyright 2008 - 2009
+ * Windriver, <www.windriver.com>
+ * Tom Rix <Tom.Rix@xxxxxxxxxxxxx>
+ *
+ * Copyright 2011 Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx>
+ *
+ * Copyright 2014 Linaro, Ltd.
+ * Rob Herring <robh@xxxxxxxxxx>
+ *
+ * Copyright 2014 Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
+ * Ported to barebox
+ *
+ * Copyright 2020 Edmund Henniges <eh@xxxxxxxxx>
+ * Copyright 2020 Daniel Glöckner <dg@xxxxxxxxx>
+ * Split off of generic parts
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#define pr_fmt(fmt) "fastboot: " fmt
+
+#include <common.h>
+#include <command.h>
+#include <ioctl.h>
+#include <bbu.h>
+#include <bootm.h>
+#include <fs.h>
+#include <init.h>
+#include <libfile.h>
+#include <ubiformat.h>
+#include <unistd.h>
+#include <magicvar.h>
+#include <linux/sizes.h>
+#include <progress.h>
+#include <environment.h>
+#include <globalvar.h>
+#include <restart.h>
+#include <console_countdown.h>
+#include <image-sparse.h>
+#include <linux/types.h>
+#include <linux/stat.h>
+#include <linux/mtd/mtd.h>
+#include <fastboot.h>
+
+#define FASTBOOT_VERSION "0.4"
+
+#define FASTBOOT_TMPFILE "/.fastboot.img"
+
+static unsigned int fastboot_max_download_size = SZ_8M;
+
+struct fb_variable {
+ char *name;
+ char *value;
+ struct list_head list;
+};
+
+static inline bool fastboot_download_to_buf(struct fastboot *fb)
+{
+ if (IS_ENABLED(CONFIG_FASTBOOT_BUF))
+ return true;
+ else
+ return false;
+}
+
+static void fb_setvar(struct fb_variable *var, const char *fmt, ...)
+{
+ va_list ap;
+
+ va_start(ap, fmt);
+ var->value = bvasprintf(fmt, ap);
+ va_end(ap);
+}
+
+static struct fb_variable *fb_addvar(struct fastboot *fb, const char *fmt, ...)
+{
+ struct fb_variable *var = xzalloc(sizeof(*var));
+ va_list ap;
+
+ va_start(ap, fmt);
+ var->name = bvasprintf(fmt, ap);
+ va_end(ap);
+
+ list_add_tail(&var->list, &fb->variables);
+
+ return var;
+}
+
+static int fastboot_add_partition_variables(struct fastboot *fb,
+ struct file_list_entry *fentry)
+{
+ struct stat s;
+ size_t size = 0;
+ int fd, ret;
+ struct mtd_info_user mtdinfo;
+ char *type = NULL;
+ struct fb_variable *var;
+
+ ret = stat(fentry->filename, &s);
+ if (ret) {
+ device_detect_by_name(devpath_to_name(fentry->filename));
+ ret = stat(fentry->filename, &s);
+ }
+
+ if (ret) {
+ if (fentry->flags & FILE_LIST_FLAG_CREATE) {
+ ret = 0;
+ type = "file";
+ goto out;
+ }
+
+ goto out;
+ }
+
+ fd = open(fentry->filename, O_RDWR);
+ if (fd < 0) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ size = s.st_size;
+
+ ret = ioctl(fd, MEMGETINFO, &mtdinfo);
+
+ close(fd);
+
+ if (!ret) {
+ switch (mtdinfo.type) {
+ case MTD_NANDFLASH:
+ type = "NAND-flash";
+ break;
+ case MTD_NORFLASH:
+ type = "NOR-flash";
+ break;
+ case MTD_UBIVOLUME:
+ type = "UBI";
+ break;
+ default:
+ type = "flash";
+ break;
+ }
+
+ goto out;
+ }
+
+ type = "basic";
+ ret = 0;
+
+out:
+ if (ret)
+ return ret;
+
+ var = fb_addvar(fb, "partition-size:%s", fentry->name);
+ fb_setvar(var, "%08zx", size);
+ var = fb_addvar(fb, "partition-type:%s", fentry->name);
+ fb_setvar(var, "%s", type);
+
+ return ret;
+}
+
+static int fastboot_add_bbu_variables(struct bbu_handler *handler, void *ctx)
+{
+ struct fastboot *fb = ctx;
+ char *name;
+ int ret;
+
+ name = basprintf("bbu-%s", handler->name);
+
+ ret = file_list_add_entry(fb->files, name, handler->devicefile, 0);
+
+ free(name);
+
+ return ret;
+}
+
+int fastboot_generic_init(struct fastboot *fb, bool export_bbu)
+{
+ int ret;
+ struct file_list_entry *fentry;
+ struct fb_variable *var;
+
+ var = fb_addvar(fb, "version");
+ fb_setvar(var, "0.4");
+ var = fb_addvar(fb, "bootloader-version");
+ fb_setvar(var, release_string);
+ if (IS_ENABLED(CONFIG_FASTBOOT_SPARSE)) {
+ var = fb_addvar(fb, "max-download-size");
+ fb_setvar(var, "%u", fastboot_max_download_size);
+ }
+
+ if (IS_ENABLED(CONFIG_BAREBOX_UPDATE) && export_bbu)
+ bbu_handlers_iterate(fastboot_add_bbu_variables, fb);
+
+ file_list_for_each_entry(fb->files, fentry) {
+ ret = fastboot_add_partition_variables(fb, fentry);
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+}
+
+void fastboot_generic_free(struct fastboot *fb)
+{
+ struct fb_variable *var, *tmp;
+
+ list_for_each_entry_safe(var, tmp, &fb->variables, list) {
+ free(var->name);
+ free(var->value);
+ list_del(&var->list);
+ free(var);
+ }
+
+ fb->active = false;
+}
+
+static struct fastboot *g_fb;
+
+void fastboot_generic_close(struct fastboot *fb)
+{
+ if (g_fb == fb)
+ g_fb = NULL;
+}
+
+/*
+ * A "oem exec bootm" or similar commands will stop barebox. Tell the
+ * fastboot command on the other side so that it doesn't run into a
+ * timeout.
+ */
+static void fastboot_shutdown(void)
+{
+ struct fastboot *fb = g_fb;
+
+ if (!fb || !fb->active)
+ return;
+
+ fastboot_tx_print(fb, FASTBOOT_MSG_INFO, "barebox shutting down");
+ fastboot_tx_print(fb, FASTBOOT_MSG_OKAY, "");
+}
+
+early_exitcall(fastboot_shutdown);
+
+static char *fastboot_msg[] = {
+ [FASTBOOT_MSG_OKAY] = "OKAY",
+ [FASTBOOT_MSG_FAIL] = "FAIL",
+ [FASTBOOT_MSG_INFO] = "INFO",
+ [FASTBOOT_MSG_DATA] = "DATA",
+};
+
+int fastboot_tx_print(struct fastboot *fb, enum fastboot_msg_type type,
+ const char *fmt, ...)
+{
+ struct va_format vaf;
+ char buf[64];
+ va_list ap;
+ int n;
+ const char *msg = fastboot_msg[type];
+
+ va_start(ap, fmt);
+ vaf.fmt = fmt;
+ vaf.va = ≈
+
+ n = snprintf(buf, 64, "%s%pV", msg, &vaf);
+
+ switch (type) {
+ case FASTBOOT_MSG_OKAY:
+ fb->active = false;
+ break;
+ case FASTBOOT_MSG_FAIL:
+ fb->active = false;
+ pr_err("%pV\n", &vaf);
+ break;
+ case FASTBOOT_MSG_INFO:
+ pr_info("%pV\n", &vaf);
+ break;
+ case FASTBOOT_MSG_DATA:
+ break;
+ }
+
+ va_end(ap);
+
+ if (n > 64)
+ n = 64;
+
+ return fb->write(fb, buf, n);
+}
+
+static void cb_reboot(struct fastboot *fb, const char *cmd)
+{
+ restart_machine();
+}
+
+static int strcmp_l1(const char *s1, const char *s2)
+{
+ if (!s1 || !s2)
+ return -1;
+ return strncmp(s1, s2, strlen(s1));
+}
+
+static void cb_getvar(struct fastboot *fb, const char *cmd)
+{
+ struct fb_variable *var;
+
+ pr_debug("getvar: \"%s\"\n", cmd);
+
+ if (!strcmp_l1(cmd, "all")) {
+ list_for_each_entry(var, &fb->variables, list) {
+ fastboot_tx_print(fb, FASTBOOT_MSG_INFO, "%s: %s",
+ var->name, var->value);
+ }
+ fastboot_tx_print(fb, FASTBOOT_MSG_OKAY, "");
+ return;
+ }
+
+ list_for_each_entry(var, &fb->variables, list) {
+ if (!strcmp(cmd, var->name)) {
+ fastboot_tx_print(fb, FASTBOOT_MSG_OKAY, var->value);
+ return;
+ }
+ }
+
+ fastboot_tx_print(fb, FASTBOOT_MSG_OKAY, "");
+}
+
+int fastboot_handle_download_data(struct fastboot *fb, const void *buffer,
+ unsigned int len)
+{
+ int ret;
+
+ if (fastboot_download_to_buf(fb)) {
+ memcpy(fb->buf + fb->download_bytes, buffer, len);
+ } else {
+ ret = write(fb->download_fd, buffer, len);
+ if (ret < 0)
+ return ret;
+ }
+
+ fb->download_bytes += len;
+ show_progress(fb->download_bytes);
+ return 0;
+}
+
+void fastboot_download_finished(struct fastboot *fb)
+{
+ close(fb->download_fd);
+
+ printf("\n");
+
+ fastboot_tx_print(fb, FASTBOOT_MSG_INFO, "Downloading %d bytes finished",
+ fb->download_bytes);
+
+ fastboot_tx_print(fb, FASTBOOT_MSG_OKAY, "");
+}
+
+static void cb_download(struct fastboot *fb, const char *cmd)
+{
+ fb->download_size = simple_strtoul(cmd, NULL, 16);
+ fb->download_bytes = 0;
+
+ fastboot_tx_print(fb, FASTBOOT_MSG_INFO, "Downloading %d bytes...",
+ fb->download_size);
+
+ init_progression_bar(fb->download_size);
+
+ if (fastboot_download_to_buf(fb)) {
+ free(fb->buf);
+ fb->buf = malloc(fb->download_size);
+ if (!fb->buf) {
+ fastboot_tx_print(fb, FASTBOOT_MSG_FAIL,
+ "not enough memory");
+ return;
+ }
+ } else {
+ fb->download_fd = open(FASTBOOT_TMPFILE, O_WRONLY | O_CREAT | O_TRUNC);
+ if (fb->download_fd < 0) {
+ fastboot_tx_print(fb, FASTBOOT_MSG_FAIL,
+ "internal error");
+ return;
+ }
+ }
+
+ if (!fb->download_size)
+ fastboot_tx_print(fb, FASTBOOT_MSG_FAIL,
+ "data invalid size");
+ else
+ fb->start_download(fb);
+}
+
+void fastboot_start_download_generic(struct fastboot *fb)
+{
+ fastboot_tx_print(fb, FASTBOOT_MSG_DATA, "%08x", fb->download_size);
+}
+
+static void __maybe_unused cb_boot(struct fastboot *fb, const char *opt)
+{
+ int ret;
+ struct bootm_data data = {
+ .initrd_address = UIMAGE_INVALID_ADDRESS,
+ .os_address = UIMAGE_SOME_ADDRESS,
+ };
+
+ fastboot_tx_print(fb, FASTBOOT_MSG_INFO, "Booting kernel..\n");
+
+ globalvar_set_match("linux.bootargs.dyn.", "");
+ globalvar_set_match("bootm.image", "");
+
+ data.os_file = FASTBOOT_TMPFILE;
+
+ ret = bootm_boot(&data);
+
+ if (ret)
+ fastboot_tx_print(fb, FASTBOOT_MSG_FAIL, "Booting failed: %s",
+ strerror(-ret));
+ else
+ fastboot_tx_print(fb, FASTBOOT_MSG_OKAY, "");
+}
+
+static struct mtd_info *get_mtd(struct fastboot *fb, const char *filename)
+{
+ int fd, ret;
+ struct mtd_info_user meminfo;
+
+ fd = open(filename, O_RDONLY);
+ if (fd < 0)
+ return ERR_PTR(-errno);
+
+ ret = ioctl(fd, MEMGETINFO, &meminfo);
+
+ close(fd);
+
+ if (ret)
+ return ERR_PTR(ret);
+
+ return meminfo.mtd;
+}
+
+static int do_ubiformat(struct fastboot *fb, struct mtd_info *mtd,
+ const char *file, const void *buf, size_t len)
+{
+ struct ubiformat_args args = {
+ .yes = 1,
+ .image = file,
+ .image_buf = buf,
+ .image_size = len,
+ };
+
+ if (!file)
+ args.novtbl = 1;
+
+ if (!IS_ENABLED(CONFIG_UBIFORMAT)) {
+ fastboot_tx_print(fb, FASTBOOT_MSG_FAIL,
+ "ubiformat is not available");
+ return -ENODEV;
+ }
+
+ return ubiformat(mtd, &args);
+}
+
+
+static int check_ubi(struct fastboot *fb, struct file_list_entry *fentry,
+ enum filetype filetype)
+{
+ struct mtd_info *mtd;
+
+ mtd = get_mtd(fb, fentry->filename);
+
+ /*
+ * Issue a warning when we are about to write a UBI image to a MTD device
+ * and the FILE_LIST_FLAG_UBI is not given as this means we loose all
+ * erase counters.
+ */
+ if (!IS_ERR(mtd) && filetype == filetype_ubi &&
+ !(fentry->flags & FILE_LIST_FLAG_UBI)) {
+ fastboot_tx_print(fb, FASTBOOT_MSG_INFO,
+ "writing UBI image to MTD device, "
+ "add the 'u' ");
+ fastboot_tx_print(fb, FASTBOOT_MSG_INFO,
+ "flag to the partition description");
+ return 0;
+ }
+
+ if (!(fentry->flags & FILE_LIST_FLAG_UBI))
+ return 0;
+
+ if (!IS_ENABLED(CONFIG_UBIFORMAT)) {
+ fastboot_tx_print(fb, FASTBOOT_MSG_FAIL,
+ "ubiformat not available");
+ return -ENOSYS;
+ }
+
+ if (IS_ERR(mtd)) {
+ fastboot_tx_print(fb, FASTBOOT_MSG_FAIL,
+ "UBI flag given on non-MTD device");
+ return -EINVAL;
+ }
+
+ if (filetype == filetype_ubi) {
+ fastboot_tx_print(fb, FASTBOOT_MSG_INFO,
+ "This is a UBI image...");
+ return 1;
+ } else {
+ fastboot_tx_print(fb, FASTBOOT_MSG_FAIL,
+ "This is no UBI image but %s",
+ file_type_to_string(filetype));
+ return -EINVAL;
+ }
+}
+
+static int fastboot_handle_sparse(struct fastboot *fb,
+ struct file_list_entry *fentry)
+{
+ struct sparse_image_ctx *sparse;
+ void *buf = NULL;
+ int ret, fd;
+ unsigned int flags = O_RDWR;
+ int bufsiz = SZ_128K;
+ struct stat s;
+ struct mtd_info *mtd = NULL;
+
+ ret = stat(fentry->filename, &s);
+ if (ret) {
+ if (fentry->flags & FILE_LIST_FLAG_CREATE)
+ flags |= O_CREAT;
+ else
+ return ret;
+ }
+
+ fd = open(fentry->filename, flags);
+ if (fd < 0)
+ return -errno;
+
+ ret = fstat(fd, &s);
+ if (ret)
+ goto out_close_fd;
+
+ sparse = sparse_image_open(FASTBOOT_TMPFILE);
+ if (IS_ERR(sparse)) {
+ pr_err("Cannot open sparse image\n");
+ ret = PTR_ERR(sparse);
+ goto out_close_fd;
+ }
+
+ if (S_ISREG(s.st_mode)) {
+ ret = ftruncate(fd, sparse_image_size(sparse));
+ if (ret)
+ goto out;
+ }
+
+ buf = malloc(bufsiz);
+ if (!buf) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ if (fentry->flags & FILE_LIST_FLAG_UBI) {
+ mtd = get_mtd(fb, fentry->filename);
+ if (IS_ERR(mtd)) {
+ ret = PTR_ERR(mtd);
+ goto out;
+ }
+ }
+
+ while (1) {
+ int retlen;
+ loff_t pos;
+
+ ret = sparse_image_read(sparse, buf, &pos, bufsiz, &retlen);
+ if (ret)
+ goto out;
+ if (!retlen)
+ break;
+
+ if (pos == 0) {
+ ret = check_ubi(fb, fentry, file_detect_type(buf, retlen));
+ if (ret < 0)
+ goto out;
+ }
+
+ if (fentry->flags & FILE_LIST_FLAG_UBI) {
+ if (!IS_ENABLED(CONFIG_UBIFORMAT)) {
+ ret = -ENOSYS;
+ goto out;
+ }
+
+ if (pos == 0) {
+ ret = do_ubiformat(fb, mtd, NULL, NULL, 0);
+ if (ret)
+ goto out;
+ }
+
+ ret = ubiformat_write(mtd, buf, retlen, pos);
+ if (ret)
+ goto out;
+ } else {
+ pos = lseek(fd, pos, SEEK_SET);
+ if (pos == -1) {
+ ret = -errno;
+ goto out;
+ }
+
+ ret = write_full(fd, buf, retlen);
+ if (ret < 0)
+ goto out;
+ }
+ }
+
+ ret = 0;
+
+out:
+ free(buf);
+ sparse_image_close(sparse);
+out_close_fd:
+ close(fd);
+
+ return ret;
+}
+
+static void cb_flash(struct fastboot *fb, const char *cmd)
+{
+ struct file_list_entry *fentry;
+ int ret;
+ const char *filename = NULL, *sourcefile;
+ enum filetype filetype;
+
+ if (fastboot_download_to_buf(fb)) {
+ sourcefile = NULL;
+ filetype = file_detect_type(fb->buf, fb->download_bytes);
+ } else {
+ sourcefile = FASTBOOT_TMPFILE;
+ filetype = file_name_detect_type(FASTBOOT_TMPFILE);
+ }
+
+ fastboot_tx_print(fb, FASTBOOT_MSG_INFO, "Copying file to %s...",
+ cmd);
+
+ fentry = file_list_entry_by_name(fb->files, cmd);
+
+ if (!fentry) {
+ fastboot_tx_print(fb, FASTBOOT_MSG_FAIL, "No such partition: %s",
+ cmd);
+ ret = -ENOENT;
+ goto out;
+ }
+
+ if (fb->cmd_flash) {
+ ret = fb->cmd_flash(fb, fentry, sourcefile, fb->buf,
+ fb->download_size);
+ if (ret != FASTBOOT_CMD_FALLTHROUGH)
+ goto out;
+ }
+
+ filename = fentry->filename;
+
+ if (filetype == filetype_android_sparse) {
+ if (!IS_ENABLED(CONFIG_FASTBOOT_SPARSE) ||
+ fastboot_download_to_buf(fb)) {
+ fastboot_tx_print(fb, FASTBOOT_MSG_FAIL,
+ "sparse image not supported");
+ ret = -EOPNOTSUPP;
+ goto out;
+ }
+
+ ret = fastboot_handle_sparse(fb, fentry);
+ if (ret)
+ fastboot_tx_print(fb, FASTBOOT_MSG_FAIL,
+ "writing sparse image: %s",
+ strerror(-ret));
+
+ goto out;
+ }
+
+ ret = check_ubi(fb, fentry, filetype);
+ if (ret < 0)
+ goto out;
+
+ if (ret > 0) {
+ struct mtd_info *mtd;
+
+ mtd = get_mtd(fb, fentry->filename);
+
+ ret = do_ubiformat(fb, mtd, sourcefile, fb->buf,
+ fb->download_size);
+ if (ret) {
+ fastboot_tx_print(fb, FASTBOOT_MSG_FAIL,
+ "write partition: %s",
+ strerror(-ret));
+ goto out;
+ }
+
+ goto out;
+ }
+
+ if (IS_ENABLED(CONFIG_BAREBOX_UPDATE) && filetype_is_barebox_image(filetype)) {
+ struct bbu_handler *handler;
+ struct bbu_data data = {
+ .devicefile = filename,
+ .flags = BBU_FLAG_YES,
+ };
+
+ handler = bbu_find_handler_by_device(data.devicefile);
+ if (!handler)
+ goto copy;
+
+ fastboot_tx_print(fb, FASTBOOT_MSG_INFO,
+ "This is a barebox image...");
+
+ if (fastboot_download_to_buf(fb)) {
+ data.len = fb->download_size;
+ } else {
+ ret = read_file_2(sourcefile, &data.len, &fb->buf,
+ fb->download_size);
+ if (ret) {
+ fastboot_tx_print(fb, FASTBOOT_MSG_FAIL,
+ "reading barebox");
+ goto out;
+ }
+ }
+
+ data.image = fb->buf;
+ data.imagefile = sourcefile;
+
+ ret = barebox_update(&data, handler);
+
+ if (ret)
+ fastboot_tx_print(fb, FASTBOOT_MSG_FAIL,
+ "update barebox: %s", strerror(-ret));
+
+ goto out;
+ }
+
+copy:
+ if (fastboot_download_to_buf(fb))
+ ret = write_file(filename, fb->buf, fb->download_size);
+ else
+ ret = copy_file(FASTBOOT_TMPFILE, filename, 1);
+
+ if (ret)
+ fastboot_tx_print(fb, FASTBOOT_MSG_FAIL,
+ "write partition: %s", strerror(-ret));
+
+out:
+ if (!ret)
+ fastboot_tx_print(fb, FASTBOOT_MSG_OKAY, "");
+
+ free(fb->buf);
+ fb->buf = NULL;
+
+ if (!fastboot_download_to_buf(fb))
+ unlink(FASTBOOT_TMPFILE);
+}
+
+static void cb_erase(struct fastboot *fb, const char *cmd)
+{
+ struct file_list_entry *fentry;
+ int ret;
+ const char *filename = NULL;
+ int fd;
+
+ fastboot_tx_print(fb, FASTBOOT_MSG_INFO, "Erasing %s...", cmd);
+
+ file_list_for_each_entry(fb->files, fentry) {
+ if (!strcmp(cmd, fentry->name)) {
+ filename = fentry->filename;
+ break;
+ }
+ }
+
+ if (!filename) {
+ fastboot_tx_print(fb, FASTBOOT_MSG_FAIL,
+ "No such partition: %s", cmd);
+ return;
+ }
+
+ fd = open(filename, O_RDWR);
+ if (fd < 0)
+ fastboot_tx_print(fb, FASTBOOT_MSG_FAIL, strerror(-fd));
+
+ ret = erase(fd, ERASE_SIZE_ALL, 0);
+
+ close(fd);
+
+ if (ret)
+ fastboot_tx_print(fb, FASTBOOT_MSG_FAIL,
+ "cannot erase partition %s: %s",
+ filename, strerror(-ret));
+ else
+ fastboot_tx_print(fb, FASTBOOT_MSG_OKAY, "");
+}
+
+struct cmd_dispatch_info {
+ char *cmd;
+ void (*cb)(struct fastboot *fb, const char *opt);
+};
+
+static void fb_run_command(struct fastboot *fb, const char *cmdbuf,
+ const struct cmd_dispatch_info *cmds, int num_commands)
+{
+ const struct cmd_dispatch_info *cmd;
+ int i;
+
+ console_countdown_abort();
+
+ for (i = 0; i < num_commands; i++) {
+ cmd = &cmds[i];
+
+ if (!strcmp_l1(cmd->cmd, cmdbuf)) {
+ cmd->cb(fb, cmdbuf + strlen(cmd->cmd));
+
+ return;
+ }
+ }
+
+ fastboot_tx_print(fb, FASTBOOT_MSG_FAIL, "unknown command %s",
+ cmdbuf);
+}
+
+static void cb_oem_getenv(struct fastboot *fb, const char *cmd)
+{
+ const char *value;
+
+ pr_debug("%s: \"%s\"\n", __func__, cmd);
+
+ value = getenv(cmd);
+
+ fastboot_tx_print(fb, FASTBOOT_MSG_INFO, value ? value : "");
+ fastboot_tx_print(fb, FASTBOOT_MSG_OKAY, "");
+}
+
+static void cb_oem_setenv(struct fastboot *fb, const char *cmd)
+{
+ char *var = xstrdup(cmd);
+ char *value;
+ int ret;
+
+ pr_debug("%s: \"%s\"\n", __func__, cmd);
+
+ value = strchr(var, '=');
+ if (!value) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ *value++ = 0;
+
+ ret = setenv(var, value);
+ if (ret)
+ goto out;
+
+ fastboot_tx_print(fb, FASTBOOT_MSG_OKAY, "");
+out:
+ free(var);
+
+ if (ret)
+ fastboot_tx_print(fb, FASTBOOT_MSG_FAIL, strerror(-ret));
+}
+
+static void cb_oem_exec(struct fastboot *fb, const char *cmd)
+{
+ int ret;
+
+ if (!IS_ENABLED(CONFIG_COMMAND_SUPPORT)) {
+ fastboot_tx_print(fb, FASTBOOT_MSG_FAIL,
+ "no command support available");
+ return;
+ }
+
+ ret = run_command(cmd);
+ if (ret < 0)
+ fastboot_tx_print(fb, FASTBOOT_MSG_FAIL, strerror(-ret));
+ else if (ret > 0)
+ fastboot_tx_print(fb, FASTBOOT_MSG_FAIL, "");
+ else
+ fastboot_tx_print(fb, FASTBOOT_MSG_OKAY, "");
+}
+
+static const struct cmd_dispatch_info cmd_oem_dispatch_info[] = {
+ {
+ .cmd = "getenv ",
+ .cb = cb_oem_getenv,
+ }, {
+ .cmd = "setenv ",
+ .cb = cb_oem_setenv,
+ }, {
+ .cmd = "exec ",
+ .cb = cb_oem_exec,
+ },
+};
+
+static void __maybe_unused cb_oem(struct fastboot *fb, const char *cmd)
+{
+ pr_debug("%s: \"%s\"\n", __func__, cmd);
+
+ fb_run_command(fb, cmd, cmd_oem_dispatch_info, ARRAY_SIZE(cmd_oem_dispatch_info));
+}
+
+static const struct cmd_dispatch_info cmd_dispatch_info[] = {
+ {
+ .cmd = "reboot",
+ .cb = cb_reboot,
+ }, {
+ .cmd = "getvar:",
+ .cb = cb_getvar,
+ }, {
+ .cmd = "download:",
+ .cb = cb_download,
+#if defined(CONFIG_BOOTM)
+ }, {
+ .cmd = "boot",
+ .cb = cb_boot,
+#endif
+ }, {
+ .cmd = "flash:",
+ .cb = cb_flash,
+ }, {
+ .cmd = "erase:",
+ .cb = cb_erase,
+#if defined(CONFIG_FASTBOOT_CMD_OEM)
+ }, {
+ .cmd = "oem ",
+ .cb = cb_oem,
+#endif
+ },
+};
+
+void fastboot_exec_cmd(struct fastboot *fb, const char *cmdbuf)
+{
+ int ret;
+
+ g_fb = fb;
+ fb->active = true;
+
+ if (fb->cmd_exec) {
+ ret = fb->cmd_exec(fb, cmdbuf);
+ if (ret != FASTBOOT_CMD_FALLTHROUGH)
+ return;
+ }
+
+ fb_run_command(fb, cmdbuf, cmd_dispatch_info,
+ ARRAY_SIZE(cmd_dispatch_info));
+}
+
+static int fastboot_globalvars_init(void)
+{
+ if (IS_ENABLED(CONFIG_FASTBOOT_SPARSE))
+ globalvar_add_simple_int("usbgadget.fastboot_max_download_size",
+ &fastboot_max_download_size, "%u");
+
+ return 0;
+}
+
+device_initcall(fastboot_globalvars_init);
+
+BAREBOX_MAGICVAR_NAMED(global_usbgadget_fastboot_max_download_size,
+ global.usbgadget.fastboot_max_download_size,
+ "Fastboot maximum download size");
diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig
index 6e60c7aee..ddae24570 100644
--- a/drivers/usb/gadget/Kconfig
+++ b/drivers/usb/gadget/Kconfig
@@ -57,7 +57,8 @@ config USB_GADGET_FASTBOOT
bool
select BANNER
select FILE_LIST
- prompt "Android Fastboot support"
+ select FASTBOOT_BASE
+ prompt "Android Fastboot USB Gadget"
config USB_GADGET_FASTBOOT_SPARSE
bool
diff --git a/drivers/usb/gadget/f_fastboot.c b/drivers/usb/gadget/f_fastboot.c
index 2d760867a..f8a9c3253 100644
--- a/drivers/usb/gadget/f_fastboot.c
+++ b/drivers/usb/gadget/f_fastboot.c
@@ -11,90 +11,36 @@
* Copyright 2014 Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
* Ported to barebox
*
+ * Copyright 2020 Edmund Henniges <eh@xxxxxxxxx>
+ * Copyright 2020 Daniel Glöckner <dg@xxxxxxxxx>
+ * Split off of generic parts
+ *
* SPDX-License-Identifier: GPL-2.0+
*/
#define pr_fmt(fmt) "fastboot: " fmt
-#include <common.h>
-#include <command.h>
-#include <errno.h>
-#include <malloc.h>
-#include <fcntl.h>
-#include <clock.h>
-#include <ioctl.h>
-#include <libbb.h>
-#include <bbu.h>
-#include <bootm.h>
#include <dma.h>
-#include <fs.h>
-#include <libfile.h>
-#include <ubiformat.h>
-#include <stdlib.h>
-#include <file-list.h>
-#include <magicvar.h>
-#include <linux/sizes.h>
+#include <unistd.h>
#include <progress.h>
-#include <environment.h>
-#include <globalvar.h>
-#include <restart.h>
-#include <console_countdown.h>
-#include <image-sparse.h>
-#include <usb/ch9.h>
-#include <usb/gadget.h>
+#include <fastboot.h>
#include <usb/fastboot.h>
-#include <usb/composite.h>
-#include <linux/err.h>
-#include <linux/compiler.h>
-#include <linux/stat.h>
-#include <linux/mtd/mtd-abi.h>
-#include <linux/mtd/mtd.h>
-
-#define FASTBOOT_VERSION "0.4"
#define FASTBOOT_INTERFACE_CLASS 0xff
#define FASTBOOT_INTERFACE_SUB_CLASS 0x42
#define FASTBOOT_INTERFACE_PROTOCOL 0x03
-#define FASTBOOT_TMPFILE "/.fastboot.img"
-
#define EP_BUFFER_SIZE 4096
-static unsigned int fastboot_max_download_size = SZ_8M;
-
-struct fb_variable {
- char *name;
- char *value;
- struct list_head list;
-};
-
struct f_fastboot {
+ struct fastboot fastboot;
struct usb_function func;
/* IN/OUT EP's and corresponding requests */
struct usb_ep *in_ep, *out_ep;
struct usb_request *in_req, *out_req;
- struct file_list *files;
- int (*cmd_exec)(struct f_fastboot *, const char *cmd);
- int (*cmd_flash)(struct f_fastboot *, struct file_list_entry *entry,
- const char *filename, const void *buf, size_t len);
- int download_fd;
- void *buf;
- bool active;
-
- size_t download_bytes;
- size_t download_size;
- struct list_head variables;
};
-static inline bool fastboot_download_to_buf(struct f_fastboot *f_fb)
-{
- if (IS_ENABLED(CONFIG_USB_GADGET_FASTBOOT_BUF))
- return true;
- else
- return false;
-}
-
static inline struct f_fastboot *func_to_fastboot(struct usb_function *f)
{
return container_of(f, struct f_fastboot, func);
@@ -182,6 +128,9 @@ static struct usb_gadget_strings *fastboot_strings[] = {
};
static void rx_handler_command(struct usb_ep *ep, struct usb_request *req);
+static int fastboot_write_usb(struct fastboot *fb, const char *buffer,
+ unsigned int buffer_size);
+static void fastboot_start_download_usb(struct fastboot *fb);
static void fastboot_complete(struct usb_ep *ep, struct usb_request *req)
{
@@ -206,116 +155,6 @@ static struct usb_request *fastboot_alloc_request(struct usb_ep *ep)
return req;
}
-static void fb_setvar(struct fb_variable *var, const char *fmt, ...)
-{
- va_list ap;
-
- va_start(ap, fmt);
- var->value = bvasprintf(fmt, ap);
- va_end(ap);
-}
-
-static struct fb_variable *fb_addvar(struct f_fastboot *f_fb, const char *fmt, ...)
-{
- struct fb_variable *var = xzalloc(sizeof(*var));
- va_list ap;
-
- va_start(ap, fmt);
- var->name = bvasprintf(fmt, ap);
- va_end(ap);
-
- list_add_tail(&var->list, &f_fb->variables);
-
- return var;
-}
-
-static int fastboot_add_partition_variables(struct f_fastboot *f_fb,
- struct file_list_entry *fentry)
-{
- struct stat s;
- size_t size = 0;
- int fd, ret;
- struct mtd_info_user mtdinfo;
- char *type = NULL;
- struct fb_variable *var;
-
- ret = stat(fentry->filename, &s);
- if (ret) {
- device_detect_by_name(devpath_to_name(fentry->filename));
- ret = stat(fentry->filename, &s);
- }
-
- if (ret) {
- if (fentry->flags & FILE_LIST_FLAG_CREATE) {
- ret = 0;
- type = "file";
- goto out;
- }
-
- goto out;
- }
-
- fd = open(fentry->filename, O_RDWR);
- if (fd < 0) {
- ret = -EINVAL;
- goto out;
- }
-
- size = s.st_size;
-
- ret = ioctl(fd, MEMGETINFO, &mtdinfo);
-
- close(fd);
-
- if (!ret) {
- switch (mtdinfo.type) {
- case MTD_NANDFLASH:
- type = "NAND-flash";
- break;
- case MTD_NORFLASH:
- type = "NOR-flash";
- break;
- case MTD_UBIVOLUME:
- type = "UBI";
- break;
- default:
- type = "flash";
- break;
- }
-
- goto out;
- }
-
- type = "basic";
- ret = 0;
-
-out:
- if (ret)
- return ret;
-
- var = fb_addvar(f_fb, "partition-size:%s", fentry->name);
- fb_setvar(var, "%08zx", size);
- var = fb_addvar(f_fb, "partition-type:%s", fentry->name);
- fb_setvar(var, "%s", type);
-
- return ret;
-}
-
-static int fastboot_add_bbu_variables(struct bbu_handler *handler, void *ctx)
-{
- struct f_fastboot *f_fb = ctx;
- char *name;
- int ret;
-
- name = basprintf("bbu-%s", handler->name);
-
- ret = file_list_add_entry(f_fb->files, name, handler->devicefile, 0);
-
- free(name);
-
- return ret;
-}
-
static int fastboot_bind(struct usb_configuration *c, struct usb_function *f)
{
struct usb_composite_dev *cdev = c->cdev;
@@ -325,30 +164,17 @@ static int fastboot_bind(struct usb_configuration *c, struct usb_function *f)
struct usb_string *us;
const struct usb_function_instance *fi = f->fi;
struct f_fastboot_opts *opts = container_of(fi, struct f_fastboot_opts, func_inst);
- struct file_list_entry *fentry;
- struct fb_variable *var;
-
- f_fb->files = opts->files;
- f_fb->cmd_exec = opts->cmd_exec;
- f_fb->cmd_flash = opts->cmd_flash;
-
- var = fb_addvar(f_fb, "version");
- fb_setvar(var, "0.4");
- var = fb_addvar(f_fb, "bootloader-version");
- fb_setvar(var, release_string);
- if (IS_ENABLED(CONFIG_USB_GADGET_FASTBOOT_SPARSE)) {
- var = fb_addvar(f_fb, "max-download-size");
- fb_setvar(var, "%u", fastboot_max_download_size);
- }
- if (IS_ENABLED(CONFIG_BAREBOX_UPDATE) && opts->export_bbu)
- bbu_handlers_iterate(fastboot_add_bbu_variables, f_fb);
+ f_fb->fastboot.write = fastboot_write_usb;
+ f_fb->fastboot.start_download = fastboot_start_download_usb;
- file_list_for_each_entry(f_fb->files, fentry) {
- ret = fastboot_add_partition_variables(f_fb, fentry);
- if (ret)
- return ret;
- }
+ f_fb->fastboot.files = opts->common.files;
+ f_fb->fastboot.cmd_exec = opts->common.cmd_exec;
+ f_fb->fastboot.cmd_flash = opts->common.cmd_flash;
+
+ ret = fastboot_generic_init(&f_fb->fastboot, opts->common.export_bbu);
+ if (ret)
+ return ret;
/* DYNAMIC interface numbers assignments */
id = usb_interface_id(c, f);
@@ -409,7 +235,6 @@ static int fastboot_bind(struct usb_configuration *c, struct usb_function *f)
static void fastboot_unbind(struct usb_configuration *c, struct usb_function *f)
{
struct f_fastboot *f_fb = func_to_fastboot(f);
- struct fb_variable *var, *tmp;
usb_ep_dequeue(f_fb->in_ep, f_fb->in_req);
free(f_fb->in_req->buf);
@@ -421,14 +246,7 @@ static void fastboot_unbind(struct usb_configuration *c, struct usb_function *f)
usb_ep_free_request(f_fb->out_ep, f_fb->out_req);
f_fb->out_req = NULL;
- list_for_each_entry_safe(var, tmp, &f_fb->variables, list) {
- free(var->name);
- free(var->value);
- list_del(&var->list);
- free(var);
- }
-
- f_fb->active = false;
+ fastboot_generic_free(&f_fb->fastboot);
}
static void fastboot_disable(struct usb_function *f)
@@ -481,43 +299,21 @@ err:
return ret;
}
-static struct f_fastboot *g_f_fb;
-
static void fastboot_free_func(struct usb_function *f)
{
struct f_fastboot *f_fb = container_of(f, struct f_fastboot, func);
- if (g_f_fb == f_fb)
- g_f_fb = NULL;
-
+ fastboot_generic_close(&f_fb->fastboot);
free(f_fb);
}
-/*
- * A "oem exec bootm" or similar commands will stop barebox. Tell the
- * fastboot command on the other side so that it doesn't run into a
- * timeout.
- */
-static void fastboot_shutdown(void)
-{
- struct f_fastboot *f_fb = g_f_fb;
-
- if (!f_fb || !f_fb->active)
- return;
-
- fastboot_tx_print(f_fb, FASTBOOT_MSG_INFO, "barebox shutting down");
- fastboot_tx_print(f_fb, FASTBOOT_MSG_OKAY, "");
-}
-
-early_exitcall(fastboot_shutdown);
-
static struct usb_function *fastboot_alloc_func(struct usb_function_instance *fi)
{
struct f_fastboot *f_fb;
f_fb = xzalloc(sizeof(*f_fb));
- INIT_LIST_HEAD(&f_fb->variables);
+ INIT_LIST_HEAD(&f_fb->fastboot.variables);
f_fb->func.name = "fastboot";
f_fb->func.strings = fastboot_strings;
@@ -527,9 +323,6 @@ static struct usb_function *fastboot_alloc_func(struct usb_function_instance *fi
f_fb->func.unbind = fastboot_unbind;
f_fb->func.free_func = fastboot_free_func;
- if (!g_f_fb)
- g_f_fb = f_fb;
-
return &f_fb->func;
}
@@ -553,8 +346,9 @@ static struct usb_function_instance *fastboot_alloc_instance(void)
DECLARE_USB_FUNCTION_INIT(fastboot, fastboot_alloc_instance, fastboot_alloc_func);
-static int fastboot_tx_write(struct f_fastboot *f_fb, const char *buffer, unsigned int buffer_size)
+static int fastboot_write_usb(struct fastboot *fb, const char *buffer, unsigned int buffer_size)
{
+ struct f_fastboot *f_fb = container_of(fb, struct f_fastboot, fastboot);
struct usb_request *in_req = f_fb->in_req;
uint64_t start;
int ret;
@@ -580,91 +374,10 @@ static int fastboot_tx_write(struct f_fastboot *f_fb, const char *buffer, unsign
return 0;
}
-static char *fastboot_msg[] = {
- [FASTBOOT_MSG_OKAY] = "OKAY",
- [FASTBOOT_MSG_FAIL] = "FAIL",
- [FASTBOOT_MSG_INFO] = "INFO",
- [FASTBOOT_MSG_DATA] = "DATA",
-};
-
-int fastboot_tx_print(struct f_fastboot *f_fb, enum fastboot_msg_type type,
- const char *fmt, ...)
-{
- struct va_format vaf;
- char buf[64];
- va_list ap;
- int n;
- const char *msg = fastboot_msg[type];
-
- va_start(ap, fmt);
- vaf.fmt = fmt;
- vaf.va = ≈
-
- n = snprintf(buf, 64, "%s%pV", msg, &vaf);
-
- switch (type) {
- case FASTBOOT_MSG_OKAY:
- f_fb->active = false;
- break;
- case FASTBOOT_MSG_FAIL:
- f_fb->active = false;
- pr_err("%pV\n", &vaf);
- break;
- case FASTBOOT_MSG_INFO:
- pr_info("%pV\n", &vaf);
- break;
- case FASTBOOT_MSG_DATA:
- break;
- }
-
- va_end(ap);
-
- if (n > 64)
- n = 64;
-
- return fastboot_tx_write(f_fb, buf, n);
-}
-
-static void cb_reboot(struct f_fastboot *f_fb, const char *cmd)
-{
- restart_machine();
-}
-
-static int strcmp_l1(const char *s1, const char *s2)
-{
- if (!s1 || !s2)
- return -1;
- return strncmp(s1, s2, strlen(s1));
-}
-
-static void cb_getvar(struct f_fastboot *f_fb, const char *cmd)
-{
- struct fb_variable *var;
-
- pr_debug("getvar: \"%s\"\n", cmd);
-
- if (!strcmp_l1(cmd, "all")) {
- list_for_each_entry(var, &f_fb->variables, list) {
- fastboot_tx_print(f_fb, FASTBOOT_MSG_INFO, "%s: %s",
- var->name, var->value);
- }
- fastboot_tx_print(f_fb, FASTBOOT_MSG_OKAY, "");
- return;
- }
-
- list_for_each_entry(var, &f_fb->variables, list) {
- if (!strcmp(cmd, var->name)) {
- fastboot_tx_print(f_fb, FASTBOOT_MSG_OKAY, var->value);
- return;
- }
- }
-
- fastboot_tx_print(f_fb, FASTBOOT_MSG_OKAY, "");
-}
-
static int rx_bytes_expected(struct f_fastboot *f_fb)
{
- int remaining = f_fb->download_size - f_fb->download_bytes;
+ int remaining = f_fb->fastboot.download_size
+ - f_fb->fastboot.download_bytes;
if (remaining >= EP_BUFFER_SIZE)
return EP_BUFFER_SIZE;
@@ -683,649 +396,50 @@ static void rx_handler_dl_image(struct usb_ep *ep, struct usb_request *req)
return;
}
- if (fastboot_download_to_buf(f_fb)) {
- memcpy(f_fb->buf + f_fb->download_bytes, buffer, req->actual);
- } else {
- ret = write(f_fb->download_fd, buffer, req->actual);
- if (ret < 0) {
- fastboot_tx_print(f_fb, FASTBOOT_MSG_FAIL, strerror(-ret));
- return;
- }
+ ret = fastboot_handle_download_data(&f_fb->fastboot, buffer,
+ req->actual);
+ if (ret < 0) {
+ fastboot_tx_print(&f_fb->fastboot, FASTBOOT_MSG_FAIL,
+ strerror(-ret));
+ return;
}
- f_fb->download_bytes += req->actual;
-
req->length = rx_bytes_expected(f_fb);
- show_progress(f_fb->download_bytes);
-
/* Check if transfer is done */
- if (f_fb->download_bytes >= f_fb->download_size) {
+ if (f_fb->fastboot.download_bytes >= f_fb->fastboot.download_size) {
req->complete = rx_handler_command;
req->length = EP_BUFFER_SIZE;
- close(f_fb->download_fd);
-
- printf("\n");
- fastboot_tx_print(f_fb, FASTBOOT_MSG_INFO, "Downloading %d bytes finished",
- f_fb->download_bytes);
-
- fastboot_tx_print(f_fb, FASTBOOT_MSG_OKAY, "");
+ fastboot_download_finished(&f_fb->fastboot);
}
req->actual = 0;
usb_ep_queue(ep, req);
}
-static void cb_download(struct f_fastboot *f_fb, const char *cmd)
-{
- f_fb->download_size = simple_strtoul(cmd, NULL, 16);
- f_fb->download_bytes = 0;
-
- fastboot_tx_print(f_fb, FASTBOOT_MSG_INFO, "Downloading %d bytes...",
- f_fb->download_size);
-
- init_progression_bar(f_fb->download_size);
-
- if (fastboot_download_to_buf(f_fb)) {
- free(f_fb->buf);
- f_fb->buf = malloc(f_fb->download_size);
- if (!f_fb->buf) {
- fastboot_tx_print(f_fb, FASTBOOT_MSG_FAIL,
- "not enough memory");
- return;
- }
- } else {
- f_fb->download_fd = open(FASTBOOT_TMPFILE, O_WRONLY | O_CREAT | O_TRUNC);
- if (f_fb->download_fd < 0) {
- fastboot_tx_print(f_fb, FASTBOOT_MSG_FAIL,
- "internal error");
- return;
- }
- }
-
- if (!f_fb->download_size) {
- fastboot_tx_print(f_fb, FASTBOOT_MSG_FAIL,
- "data invalid size");
- } else {
- struct usb_request *req = f_fb->out_req;
- fastboot_tx_print(f_fb, FASTBOOT_MSG_DATA,
- "%08x", f_fb->download_size);
- req->complete = rx_handler_dl_image;
- req->length = rx_bytes_expected(f_fb);
- }
-}
-
-static void __maybe_unused cb_boot(struct f_fastboot *f_fb, const char *opt)
-{
- int ret;
- struct bootm_data data = {
- .initrd_address = UIMAGE_INVALID_ADDRESS,
- .os_address = UIMAGE_SOME_ADDRESS,
- };
-
- fastboot_tx_print(f_fb, FASTBOOT_MSG_INFO, "Booting kernel..\n");
-
- globalvar_set_match("linux.bootargs.dyn.", "");
- globalvar_set_match("bootm.image", "");
-
- data.os_file = FASTBOOT_TMPFILE;
-
- ret = bootm_boot(&data);
-
- if (ret)
- fastboot_tx_print(f_fb, FASTBOOT_MSG_FAIL, "Booting failed: %s",
- strerror(-ret));
- else
- fastboot_tx_print(f_fb, FASTBOOT_MSG_OKAY, "");
-}
-
-static struct mtd_info *get_mtd(struct f_fastboot *f_fb, const char *filename)
-{
- int fd, ret;
- struct mtd_info_user meminfo;
-
- fd = open(filename, O_RDONLY);
- if (fd < 0)
- return ERR_PTR(-errno);
-
- ret = ioctl(fd, MEMGETINFO, &meminfo);
-
- close(fd);
-
- if (ret)
- return ERR_PTR(ret);
-
- return meminfo.mtd;
-}
-
-static int do_ubiformat(struct f_fastboot *f_fb, struct mtd_info *mtd,
- const char *file, const void *buf, size_t len)
-{
- struct ubiformat_args args = {
- .yes = 1,
- .image = file,
- .image_buf = buf,
- .image_size = len,
- };
-
- if (!file)
- args.novtbl = 1;
-
- if (!IS_ENABLED(CONFIG_UBIFORMAT)) {
- fastboot_tx_print(f_fb, FASTBOOT_MSG_FAIL,
- "ubiformat is not available");
- return -ENODEV;
- }
-
- return ubiformat(mtd, &args);
-}
-
-
-static int check_ubi(struct f_fastboot *f_fb, struct file_list_entry *fentry,
- enum filetype filetype)
-{
- struct mtd_info *mtd;
-
- mtd = get_mtd(f_fb, fentry->filename);
-
- /*
- * Issue a warning when we are about to write a UBI image to a MTD device
- * and the FILE_LIST_FLAG_UBI is not given as this means we loose all
- * erase counters.
- */
- if (!IS_ERR(mtd) && filetype == filetype_ubi &&
- !(fentry->flags & FILE_LIST_FLAG_UBI)) {
- fastboot_tx_print(f_fb, FASTBOOT_MSG_INFO,
- "writing UBI image to MTD device, "
- "add the 'u' ");
- fastboot_tx_print(f_fb, FASTBOOT_MSG_INFO,
- "flag to the partition description");
- return 0;
- }
-
- if (!(fentry->flags & FILE_LIST_FLAG_UBI))
- return 0;
-
- if (!IS_ENABLED(CONFIG_UBIFORMAT)) {
- fastboot_tx_print(f_fb, FASTBOOT_MSG_FAIL,
- "ubiformat not available");
- return -ENOSYS;
- }
-
- if (IS_ERR(mtd)) {
- fastboot_tx_print(f_fb, FASTBOOT_MSG_FAIL,
- "UBI flag given on non-MTD device");
- return -EINVAL;
- }
-
- if (filetype == filetype_ubi) {
- fastboot_tx_print(f_fb, FASTBOOT_MSG_INFO,
- "This is a UBI image...");
- return 1;
- } else {
- fastboot_tx_print(f_fb, FASTBOOT_MSG_FAIL,
- "This is no UBI image but %s",
- file_type_to_string(filetype));
- return -EINVAL;
- }
-}
-
-static int fastboot_handle_sparse(struct f_fastboot *f_fb,
- struct file_list_entry *fentry)
-{
- struct sparse_image_ctx *sparse;
- void *buf = NULL;
- int ret, fd;
- unsigned int flags = O_RDWR;
- int bufsiz = SZ_128K;
- struct stat s;
- struct mtd_info *mtd = NULL;
-
- ret = stat(fentry->filename, &s);
- if (ret) {
- if (fentry->flags & FILE_LIST_FLAG_CREATE)
- flags |= O_CREAT;
- else
- return ret;
- }
-
- fd = open(fentry->filename, flags);
- if (fd < 0)
- return -errno;
-
- ret = fstat(fd, &s);
- if (ret)
- goto out_close_fd;
-
- sparse = sparse_image_open(FASTBOOT_TMPFILE);
- if (IS_ERR(sparse)) {
- pr_err("Cannot open sparse image\n");
- ret = PTR_ERR(sparse);
- goto out_close_fd;
- }
-
- if (S_ISREG(s.st_mode)) {
- ret = ftruncate(fd, sparse_image_size(sparse));
- if (ret)
- goto out;
- }
-
- buf = malloc(bufsiz);
- if (!buf) {
- ret = -ENOMEM;
- goto out;
- }
-
- if (fentry->flags & FILE_LIST_FLAG_UBI) {
- mtd = get_mtd(f_fb, fentry->filename);
- if (IS_ERR(mtd)) {
- ret = PTR_ERR(mtd);
- goto out;
- }
- }
-
- while (1) {
- int retlen;
- loff_t pos;
-
- ret = sparse_image_read(sparse, buf, &pos, bufsiz, &retlen);
- if (ret)
- goto out;
- if (!retlen)
- break;
-
- if (pos == 0) {
- ret = check_ubi(f_fb, fentry, file_detect_type(buf, retlen));
- if (ret < 0)
- goto out;
- }
-
- if (fentry->flags & FILE_LIST_FLAG_UBI) {
- if (!IS_ENABLED(CONFIG_UBIFORMAT)) {
- ret = -ENOSYS;
- goto out;
- }
-
- if (pos == 0) {
- ret = do_ubiformat(f_fb, mtd, NULL, NULL, 0);
- if (ret)
- goto out;
- }
-
- ret = ubiformat_write(mtd, buf, retlen, pos);
- if (ret)
- goto out;
- } else {
- pos = lseek(fd, pos, SEEK_SET);
- if (pos == -1) {
- ret = -errno;
- goto out;
- }
-
- ret = write_full(fd, buf, retlen);
- if (ret < 0)
- goto out;
- }
- }
-
- ret = 0;
-
-out:
- free(buf);
- sparse_image_close(sparse);
-out_close_fd:
- close(fd);
-
- return ret;
-}
-
-static void cb_flash(struct f_fastboot *f_fb, const char *cmd)
-{
- struct file_list_entry *fentry;
- int ret;
- const char *filename = NULL, *sourcefile;
- enum filetype filetype;
-
- if (fastboot_download_to_buf(f_fb)) {
- sourcefile = NULL;
- filetype = file_detect_type(f_fb->buf, f_fb->download_bytes);
- } else {
- sourcefile = FASTBOOT_TMPFILE;
- filetype = file_name_detect_type(FASTBOOT_TMPFILE);
- }
-
- fastboot_tx_print(f_fb, FASTBOOT_MSG_INFO, "Copying file to %s...",
- cmd);
-
- fentry = file_list_entry_by_name(f_fb->files, cmd);
-
- if (!fentry) {
- fastboot_tx_print(f_fb, FASTBOOT_MSG_FAIL, "No such partition: %s",
- cmd);
- ret = -ENOENT;
- goto out;
- }
-
- if (f_fb->cmd_flash) {
- ret = f_fb->cmd_flash(f_fb, fentry, sourcefile, f_fb->buf,
- f_fb->download_size);
- if (ret != FASTBOOT_CMD_FALLTHROUGH)
- goto out;
- }
-
- filename = fentry->filename;
-
- if (filetype == filetype_android_sparse) {
- if (!IS_ENABLED(CONFIG_USB_GADGET_FASTBOOT_SPARSE) ||
- fastboot_download_to_buf(f_fb)) {
- fastboot_tx_print(f_fb, FASTBOOT_MSG_FAIL,
- "sparse image not supported");
- ret = -EOPNOTSUPP;
- goto out;
- }
-
- ret = fastboot_handle_sparse(f_fb, fentry);
- if (ret)
- fastboot_tx_print(f_fb, FASTBOOT_MSG_FAIL,
- "writing sparse image: %s",
- strerror(-ret));
-
- goto out;
- }
-
- ret = check_ubi(f_fb, fentry, filetype);
- if (ret < 0)
- goto out;
-
- if (ret > 0) {
- struct mtd_info *mtd;
-
- mtd = get_mtd(f_fb, fentry->filename);
-
- ret = do_ubiformat(f_fb, mtd, sourcefile, f_fb->buf,
- f_fb->download_size);
- if (ret) {
- fastboot_tx_print(f_fb, FASTBOOT_MSG_FAIL,
- "write partition: %s",
- strerror(-ret));
- goto out;
- }
-
- goto out;
- }
-
- if (IS_ENABLED(CONFIG_BAREBOX_UPDATE) && filetype_is_barebox_image(filetype)) {
- struct bbu_handler *handler;
- struct bbu_data data = {
- .devicefile = filename,
- .flags = BBU_FLAG_YES,
- };
-
- handler = bbu_find_handler_by_device(data.devicefile);
- if (!handler)
- goto copy;
-
- fastboot_tx_print(f_fb, FASTBOOT_MSG_INFO,
- "This is a barebox image...");
-
- if (fastboot_download_to_buf(f_fb)) {
- data.len = f_fb->download_size;
- } else {
- ret = read_file_2(sourcefile, &data.len, &f_fb->buf,
- f_fb->download_size);
- if (ret) {
- fastboot_tx_print(f_fb, FASTBOOT_MSG_FAIL,
- "reading barebox");
- goto out;
- }
- }
-
- data.image = f_fb->buf;
- data.imagefile = sourcefile;
-
- ret = barebox_update(&data, handler);
-
- if (ret)
- fastboot_tx_print(f_fb, FASTBOOT_MSG_FAIL,
- "update barebox: %s", strerror(-ret));
-
- goto out;
- }
-
-copy:
- if (fastboot_download_to_buf(f_fb))
- ret = write_file(filename, f_fb->buf, f_fb->download_size);
- else
- ret = copy_file(FASTBOOT_TMPFILE, filename, 1);
-
- if (ret)
- fastboot_tx_print(f_fb, FASTBOOT_MSG_FAIL,
- "write partition: %s", strerror(-ret));
-
-out:
- if (!ret)
- fastboot_tx_print(f_fb, FASTBOOT_MSG_OKAY, "");
-
- free(f_fb->buf);
- f_fb->buf = NULL;
-
- if (!fastboot_download_to_buf(f_fb))
- unlink(FASTBOOT_TMPFILE);
-}
-
-static void cb_erase(struct f_fastboot *f_fb, const char *cmd)
-{
- struct file_list_entry *fentry;
- int ret;
- const char *filename = NULL;
- int fd;
-
- fastboot_tx_print(f_fb, FASTBOOT_MSG_INFO, "Erasing %s...", cmd);
-
- file_list_for_each_entry(f_fb->files, fentry) {
- if (!strcmp(cmd, fentry->name)) {
- filename = fentry->filename;
- break;
- }
- }
-
- if (!filename) {
- fastboot_tx_print(f_fb, FASTBOOT_MSG_FAIL,
- "No such partition: %s", cmd);
- return;
- }
-
- fd = open(filename, O_RDWR);
- if (fd < 0)
- fastboot_tx_print(f_fb, FASTBOOT_MSG_FAIL, strerror(-fd));
-
- ret = erase(fd, ERASE_SIZE_ALL, 0);
-
- close(fd);
-
- if (ret)
- fastboot_tx_print(f_fb, FASTBOOT_MSG_FAIL,
- "cannot erase partition %s: %s",
- filename, strerror(-ret));
- else
- fastboot_tx_print(f_fb, FASTBOOT_MSG_OKAY, "");
-}
-
-struct cmd_dispatch_info {
- char *cmd;
- void (*cb)(struct f_fastboot *f_fb, const char *opt);
-};
-
-static void fb_run_command(struct f_fastboot *f_fb, const char *cmdbuf,
- const struct cmd_dispatch_info *cmds, int num_commands)
-{
- const struct cmd_dispatch_info *cmd;
- int i;
-
- console_countdown_abort();
-
- for (i = 0; i < num_commands; i++) {
- cmd = &cmds[i];
-
- if (!strcmp_l1(cmd->cmd, cmdbuf)) {
- cmd->cb(f_fb, cmdbuf + strlen(cmd->cmd));
-
- return;
- }
- }
-
- fastboot_tx_print(f_fb, FASTBOOT_MSG_FAIL, "unknown command %s",
- cmdbuf);
-}
-
-static void cb_oem_getenv(struct f_fastboot *f_fb, const char *cmd)
-{
- const char *value;
-
- pr_debug("%s: \"%s\"\n", __func__, cmd);
-
- value = getenv(cmd);
-
- fastboot_tx_print(f_fb, FASTBOOT_MSG_INFO, value ? value : "");
- fastboot_tx_print(f_fb, FASTBOOT_MSG_OKAY, "");
-}
-
-static void cb_oem_setenv(struct f_fastboot *f_fb, const char *cmd)
-{
- char *var = xstrdup(cmd);
- char *value;
- int ret;
-
- pr_debug("%s: \"%s\"\n", __func__, cmd);
-
- value = strchr(var, '=');
- if (!value) {
- ret = -EINVAL;
- goto out;
- }
-
- *value++ = 0;
-
- ret = setenv(var, value);
- if (ret)
- goto out;
-
- fastboot_tx_print(f_fb, FASTBOOT_MSG_OKAY, "");
-out:
- free(var);
-
- if (ret)
- fastboot_tx_print(f_fb, FASTBOOT_MSG_FAIL, strerror(-ret));
-}
-
-static void cb_oem_exec(struct f_fastboot *f_fb, const char *cmd)
+static void fastboot_start_download_usb(struct fastboot *fb)
{
- int ret;
+ struct f_fastboot *f_fb = container_of(fb, struct f_fastboot, fastboot);
+ struct usb_request *req = f_fb->out_req;
- if (!IS_ENABLED(CONFIG_COMMAND_SUPPORT)) {
- fastboot_tx_print(f_fb, FASTBOOT_MSG_FAIL,
- "no command support available");
- return;
- }
-
- ret = run_command(cmd);
- if (ret < 0)
- fastboot_tx_print(f_fb, FASTBOOT_MSG_FAIL, strerror(-ret));
- else if (ret > 0)
- fastboot_tx_print(f_fb, FASTBOOT_MSG_FAIL, "");
- else
- fastboot_tx_print(f_fb, FASTBOOT_MSG_OKAY, "");
-}
-
-static const struct cmd_dispatch_info cmd_oem_dispatch_info[] = {
- {
- .cmd = "getenv ",
- .cb = cb_oem_getenv,
- }, {
- .cmd = "setenv ",
- .cb = cb_oem_setenv,
- }, {
- .cmd = "exec ",
- .cb = cb_oem_exec,
- },
-};
-
-static void __maybe_unused cb_oem(struct f_fastboot *f_fb, const char *cmd)
-{
- pr_debug("%s: \"%s\"\n", __func__, cmd);
-
- fb_run_command(f_fb, cmd, cmd_oem_dispatch_info, ARRAY_SIZE(cmd_oem_dispatch_info));
+ req->complete = rx_handler_dl_image;
+ req->length = rx_bytes_expected(f_fb);
+ fastboot_start_download_generic(fb);
}
-static const struct cmd_dispatch_info cmd_dispatch_info[] = {
- {
- .cmd = "reboot",
- .cb = cb_reboot,
- }, {
- .cmd = "getvar:",
- .cb = cb_getvar,
- }, {
- .cmd = "download:",
- .cb = cb_download,
-#if defined(CONFIG_BOOTM)
- }, {
- .cmd = "boot",
- .cb = cb_boot,
-#endif
- }, {
- .cmd = "flash:",
- .cb = cb_flash,
- }, {
- .cmd = "erase:",
- .cb = cb_erase,
-#if defined(CONFIG_USB_GADGET_FASTBOOT_CMD_OEM)
- }, {
- .cmd = "oem ",
- .cb = cb_oem,
-#endif
- },
-};
-
static void rx_handler_command(struct usb_ep *ep, struct usb_request *req)
{
char *cmdbuf = req->buf;
struct f_fastboot *f_fb = req->context;
- int ret;
if (req->status != 0)
return;
- f_fb->active = true;
-
*(cmdbuf + req->actual) = 0;
-
- if (f_fb->cmd_exec) {
- ret = f_fb->cmd_exec(f_fb, cmdbuf);
- if (ret != FASTBOOT_CMD_FALLTHROUGH)
- goto done;
- }
-
- fb_run_command(f_fb, cmdbuf, cmd_dispatch_info,
- ARRAY_SIZE(cmd_dispatch_info));
-done:
+ fastboot_exec_cmd(&f_fb->fastboot, cmdbuf);
*cmdbuf = '\0';
req->actual = 0;
memset(req->buf, 0, EP_BUFFER_SIZE);
usb_ep_queue(ep, req);
}
-
-static int fastboot_globalvars_init(void)
-{
- if (IS_ENABLED(CONFIG_USB_GADGET_FASTBOOT_SPARSE))
- globalvar_add_simple_int("usbgadget.fastboot_max_download_size",
- &fastboot_max_download_size, "%u");
-
- return 0;
-}
-
-device_initcall(fastboot_globalvars_init);
-
-BAREBOX_MAGICVAR_NAMED(global_usbgadget_fastboot_max_download_size,
- global.usbgadget.fastboot_max_download_size,
- "Fastboot maximum download size");
diff --git a/drivers/usb/gadget/multi.c b/drivers/usb/gadget/multi.c
index d6edfb8cf..445cc3242 100644
--- a/drivers/usb/gadget/multi.c
+++ b/drivers/usb/gadget/multi.c
@@ -127,10 +127,7 @@ static int multi_bind_fastboot(struct usb_composite_dev *cdev)
}
opts = container_of(fi_fastboot, struct f_fastboot_opts, func_inst);
- opts->files = gadget_multi_opts->fastboot_opts.files;
- opts->cmd_exec = gadget_multi_opts->fastboot_opts.cmd_exec;
- opts->cmd_flash = gadget_multi_opts->fastboot_opts.cmd_flash;
- opts->export_bbu = gadget_multi_opts->fastboot_opts.export_bbu;
+ opts->common = gadget_multi_opts->fastboot_opts;
f_fastboot = usb_get_function(fi_fastboot);
if (IS_ERR(f_fastboot)) {
diff --git a/include/fastboot.h b/include/fastboot.h
new file mode 100644
index 000000000..3b6cae8a5
--- /dev/null
+++ b/include/fastboot.h
@@ -0,0 +1,66 @@
+#ifndef __FASTBOOT__
+#define __FASTBOOT__
+
+#include <common.h>
+#include <file-list.h>
+#include <net.h>
+
+/*
+ * Return codes for the exec_cmd callback above:
+ *
+ * FASTBOOT_CMD_FALLTHROUGH - Not handled by the external command dispatcher,
+ * handle it with internal dispatcher
+ * Other than these negative error codes mean errors handling the command and
+ * zero means the command has been successfully handled.
+ */
+#define FASTBOOT_CMD_FALLTHROUGH 1
+
+struct fastboot {
+ int (*write)(struct fastboot *fb, const char *buf, unsigned int n);
+ void (*start_download)(struct fastboot *fb);
+
+ struct file_list *files;
+ int (*cmd_exec)(struct fastboot *fb, const char *cmd);
+ int (*cmd_flash)(struct fastboot *fb, struct file_list_entry *entry,
+ const char *filename, const void *buf, size_t len);
+ int download_fd;
+ void *buf;
+
+ bool active;
+
+ size_t download_bytes;
+ size_t download_size;
+ struct list_head variables;
+};
+
+/**
+ * struct fastboot_opts - options to configure fastboot
+ * @files: A file_list containing the files (partitions) to export via fastboot
+ * @export_bbu: Automatically include the partitions provided by barebox update (bbu)
+ */
+struct fastboot_opts {
+ struct file_list *files;
+ bool export_bbu;
+ int (*cmd_exec)(struct fastboot *fb, const char *cmd);
+ int (*cmd_flash)(struct fastboot *fb, struct file_list_entry *entry,
+ const char *filename, const void *buf, size_t len);
+};
+
+enum fastboot_msg_type {
+ FASTBOOT_MSG_OKAY,
+ FASTBOOT_MSG_FAIL,
+ FASTBOOT_MSG_INFO,
+ FASTBOOT_MSG_DATA,
+};
+
+int fastboot_generic_init(struct fastboot *fb, bool export_bbu);
+void fastboot_generic_close(struct fastboot *fb);
+void fastboot_generic_free(struct fastboot *fb);
+int fastboot_handle_download_data(struct fastboot *fb, const void *buffer,
+ unsigned int len);
+int fastboot_tx_print(struct fastboot *fb, enum fastboot_msg_type type,
+ const char *fmt, ...);
+void fastboot_start_download_generic(struct fastboot *fb);
+void fastboot_download_finished(struct fastboot *fb);
+void fastboot_exec_cmd(struct fastboot *fb, const char *cmdbuf);
+#endif
diff --git a/include/usb/fastboot.h b/include/usb/fastboot.h
index c0775c67d..a3609ba5d 100644
--- a/include/usb/fastboot.h
+++ b/include/usb/fastboot.h
@@ -1,45 +1,17 @@
#ifndef _USB_FASTBOOT_H
#define _USB_FASTBOOT_H
-#include <linux/types.h>
-#include <file-list.h>
#include <usb/composite.h>
-
-struct f_fastboot;
+#include <fastboot.h>
/**
* struct f_fastboot_opts - options to configure the fastboot gadget
+ * @common: Options common to all fastboot protocol variants
* @func_inst: The USB function instance to register on
- * @files: A file_list containing the files (partitions) to export via fastboot
- * @export_bbu: Automatically include the partitions provided by barebox update (bbu)
*/
struct f_fastboot_opts {
+ struct fastboot_opts common;
struct usb_function_instance func_inst;
- struct file_list *files;
- bool export_bbu;
- int (*cmd_exec)(struct f_fastboot *, const char *cmd);
- int (*cmd_flash)(struct f_fastboot *, struct file_list_entry *entry,
- const char *filename, const void *buf, size_t len);
-};
-
-/*
- * Return codes for the exec_cmd callback above:
- *
- * FASTBOOT_CMD_FALLTHROUGH - Not handled by the external command dispatcher,
- * handle it with internal dispatcher
- * Other than these negative error codes mean errors handling the command and
- * zero means the command has been successfully handled.
- */
-#define FASTBOOT_CMD_FALLTHROUGH 1
-
-enum fastboot_msg_type {
- FASTBOOT_MSG_OKAY,
- FASTBOOT_MSG_FAIL,
- FASTBOOT_MSG_INFO,
- FASTBOOT_MSG_DATA,
};
-int fastboot_tx_print(struct f_fastboot *f_fb, enum fastboot_msg_type type,
- const char *fmt, ...);
-
#endif /* _USB_FASTBOOT_H */
diff --git a/include/usb/gadget-multi.h b/include/usb/gadget-multi.h
index 030e604fe..9bb6c889f 100644
--- a/include/usb/gadget-multi.h
+++ b/include/usb/gadget-multi.h
@@ -6,7 +6,7 @@
#include <usb/usbserial.h>
struct f_multi_opts {
- struct f_fastboot_opts fastboot_opts;
+ struct fastboot_opts fastboot_opts;
struct f_dfu_opts dfu_opts;
int create_acm;
void (*release)(struct f_multi_opts *opts);
--
2.17.1
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