406 lines
10 KiB
C++
406 lines
10 KiB
C++
/*
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* Copyright (C) 2008 The Android Open Source Project
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include "fastboot.h"
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#include "fs.h"
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#include <errno.h>
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#include <stdarg.h>
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#include <stdbool.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <unistd.h>
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#ifdef USE_MINGW
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#include <fcntl.h>
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#else
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#include <sys/mman.h>
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#endif
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#define ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0]))
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#define OP_DOWNLOAD 1
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#define OP_COMMAND 2
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#define OP_QUERY 3
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#define OP_NOTICE 4
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#define OP_DOWNLOAD_SPARSE 5
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#define OP_WAIT_FOR_DISCONNECT 6
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typedef struct Action Action;
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#define CMD_SIZE 64
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struct Action
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{
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unsigned op;
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Action *next;
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char cmd[CMD_SIZE];
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const char *prod;
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void *data;
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unsigned size;
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const char *msg;
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int (*func)(Action* a, int status, const char* resp);
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double start;
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};
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static Action *action_list = 0;
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static Action *action_last = 0;
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int fb_getvar(struct usb_handle *usb, char *response, const char *fmt, ...)
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{
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char cmd[CMD_SIZE] = "getvar:";
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int getvar_len = strlen(cmd);
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va_list args;
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response[FB_RESPONSE_SZ] = '\0';
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va_start(args, fmt);
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vsnprintf(cmd + getvar_len, sizeof(cmd) - getvar_len, fmt, args);
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va_end(args);
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cmd[CMD_SIZE - 1] = '\0';
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return fb_command_response(usb, cmd, response);
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}
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/* Return true if this partition is supported by the fastboot format command.
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* It is also used to determine if we should first erase a partition before
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* flashing it with an ext4 filesystem. See needs_erase()
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*
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* Not all devices report the filesystem type, so don't report any errors,
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* just return false.
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*/
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int fb_format_supported(usb_handle *usb, const char *partition, const char *type_override)
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{
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char fs_type[FB_RESPONSE_SZ + 1] = {0,};
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int status;
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if (type_override) {
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return !!fs_get_generator(type_override);
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}
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status = fb_getvar(usb, fs_type, "partition-type:%s", partition);
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if (status) {
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return 0;
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}
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return !!fs_get_generator(fs_type);
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}
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static int cb_default(Action* a, int status, const char* resp) {
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if (status) {
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fprintf(stderr,"FAILED (%s)\n", resp);
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} else {
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double split = now();
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fprintf(stderr,"OKAY [%7.3fs]\n", (split - a->start));
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a->start = split;
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}
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return status;
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}
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static Action *queue_action(unsigned op, const char *fmt, ...)
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{
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va_list ap;
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size_t cmdsize;
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Action* a = reinterpret_cast<Action*>(calloc(1, sizeof(Action)));
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if (a == nullptr) die("out of memory");
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va_start(ap, fmt);
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cmdsize = vsnprintf(a->cmd, sizeof(a->cmd), fmt, ap);
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va_end(ap);
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if (cmdsize >= sizeof(a->cmd)) {
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free(a);
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die("Command length (%d) exceeds maximum size (%d)", cmdsize, sizeof(a->cmd));
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}
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if (action_last) {
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action_last->next = a;
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} else {
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action_list = a;
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}
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action_last = a;
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a->op = op;
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a->func = cb_default;
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a->start = -1;
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return a;
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}
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void fb_queue_erase(const char *ptn)
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{
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Action *a;
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a = queue_action(OP_COMMAND, "erase:%s", ptn);
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a->msg = mkmsg("erasing '%s'", ptn);
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}
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void fb_queue_flash(const char *ptn, void *data, unsigned sz)
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{
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Action *a;
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a = queue_action(OP_DOWNLOAD, "");
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a->data = data;
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a->size = sz;
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a->msg = mkmsg("sending '%s' (%d KB)", ptn, sz / 1024);
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a = queue_action(OP_COMMAND, "flash:%s", ptn);
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a->msg = mkmsg("writing '%s'", ptn);
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}
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void fb_queue_flash_sparse(const char *ptn, struct sparse_file *s, unsigned sz)
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{
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Action *a;
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a = queue_action(OP_DOWNLOAD_SPARSE, "");
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a->data = s;
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a->size = 0;
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a->msg = mkmsg("sending sparse '%s' (%d KB)", ptn, sz / 1024);
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a = queue_action(OP_COMMAND, "flash:%s", ptn);
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a->msg = mkmsg("writing '%s'", ptn);
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}
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static int match(const char* str, const char** value, unsigned count) {
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unsigned n;
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for (n = 0; n < count; n++) {
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const char *val = value[n];
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int len = strlen(val);
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int match;
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if ((len > 1) && (val[len-1] == '*')) {
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len--;
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match = !strncmp(val, str, len);
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} else {
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match = !strcmp(val, str);
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}
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if (match) return 1;
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}
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return 0;
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}
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static int cb_check(Action* a, int status, const char* resp, int invert)
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{
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const char** value = reinterpret_cast<const char**>(a->data);
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unsigned count = a->size;
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unsigned n;
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int yes;
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if (status) {
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fprintf(stderr,"FAILED (%s)\n", resp);
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return status;
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}
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if (a->prod) {
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if (strcmp(a->prod, cur_product) != 0) {
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double split = now();
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fprintf(stderr,"IGNORE, product is %s required only for %s [%7.3fs]\n",
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cur_product, a->prod, (split - a->start));
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a->start = split;
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return 0;
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}
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}
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yes = match(resp, value, count);
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if (invert) yes = !yes;
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if (yes) {
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double split = now();
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fprintf(stderr,"OKAY [%7.3fs]\n", (split - a->start));
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a->start = split;
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return 0;
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}
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fprintf(stderr,"FAILED\n\n");
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fprintf(stderr,"Device %s is '%s'.\n", a->cmd + 7, resp);
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fprintf(stderr,"Update %s '%s'",
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invert ? "rejects" : "requires", value[0]);
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for (n = 1; n < count; n++) {
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fprintf(stderr," or '%s'", value[n]);
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}
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fprintf(stderr,".\n\n");
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return -1;
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}
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static int cb_require(Action*a, int status, const char* resp) {
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return cb_check(a, status, resp, 0);
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}
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static int cb_reject(Action* a, int status, const char* resp) {
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return cb_check(a, status, resp, 1);
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}
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void fb_queue_require(const char *prod, const char *var,
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int invert, unsigned nvalues, const char **value)
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{
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Action *a;
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a = queue_action(OP_QUERY, "getvar:%s", var);
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a->prod = prod;
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a->data = value;
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a->size = nvalues;
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a->msg = mkmsg("checking %s", var);
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a->func = invert ? cb_reject : cb_require;
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if (a->data == nullptr) die("out of memory");
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}
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static int cb_display(Action* a, int status, const char* resp) {
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if (status) {
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fprintf(stderr, "%s FAILED (%s)\n", a->cmd, resp);
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return status;
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}
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fprintf(stderr, "%s: %s\n", (char*) a->data, resp);
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return 0;
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}
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void fb_queue_display(const char *var, const char *prettyname)
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{
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Action *a;
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a = queue_action(OP_QUERY, "getvar:%s", var);
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a->data = strdup(prettyname);
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if (a->data == nullptr) die("out of memory");
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a->func = cb_display;
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}
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static int cb_save(Action* a, int status, const char* resp) {
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if (status) {
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fprintf(stderr, "%s FAILED (%s)\n", a->cmd, resp);
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return status;
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}
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strncpy(reinterpret_cast<char*>(a->data), resp, a->size);
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return 0;
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}
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void fb_queue_query_save(const char *var, char *dest, unsigned dest_size)
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{
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Action *a;
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a = queue_action(OP_QUERY, "getvar:%s", var);
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a->data = (void *)dest;
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a->size = dest_size;
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a->func = cb_save;
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}
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static int cb_do_nothing(Action*, int , const char*) {
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fprintf(stderr,"\n");
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return 0;
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}
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void fb_queue_reboot(void)
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{
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Action *a = queue_action(OP_COMMAND, "reboot");
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a->func = cb_do_nothing;
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a->msg = "rebooting";
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}
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void fb_queue_command(const char *cmd, const char *msg)
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{
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Action *a = queue_action(OP_COMMAND, cmd);
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a->msg = msg;
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}
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void fb_queue_download(const char *name, void *data, unsigned size)
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{
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Action *a = queue_action(OP_DOWNLOAD, "");
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a->data = data;
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a->size = size;
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a->msg = mkmsg("downloading '%s'", name);
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}
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void fb_queue_notice(const char *notice)
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{
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Action *a = queue_action(OP_NOTICE, "");
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a->data = (void*) notice;
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}
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void fb_queue_wait_for_disconnect(void)
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{
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queue_action(OP_WAIT_FOR_DISCONNECT, "");
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}
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int fb_execute_queue(usb_handle *usb)
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{
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Action *a;
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char resp[FB_RESPONSE_SZ+1];
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int status = 0;
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a = action_list;
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if (!a)
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return status;
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resp[FB_RESPONSE_SZ] = 0;
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double start = -1;
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for (a = action_list; a; a = a->next) {
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a->start = now();
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if (start < 0) start = a->start;
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if (a->msg) {
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// fprintf(stderr,"%30s... ",a->msg);
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fprintf(stderr,"%s...\n",a->msg);
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}
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if (a->op == OP_DOWNLOAD) {
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status = fb_download_data(usb, a->data, a->size);
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status = a->func(a, status, status ? fb_get_error() : "");
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if (status) break;
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} else if (a->op == OP_COMMAND) {
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status = fb_command(usb, a->cmd);
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status = a->func(a, status, status ? fb_get_error() : "");
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if (status) break;
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} else if (a->op == OP_QUERY) {
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status = fb_command_response(usb, a->cmd, resp);
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status = a->func(a, status, status ? fb_get_error() : resp);
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if (status) break;
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} else if (a->op == OP_NOTICE) {
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fprintf(stderr,"%s\n",(char*)a->data);
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} else if (a->op == OP_DOWNLOAD_SPARSE) {
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status = fb_download_data_sparse(usb, reinterpret_cast<sparse_file*>(a->data));
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status = a->func(a, status, status ? fb_get_error() : "");
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if (status) break;
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} else if (a->op == OP_WAIT_FOR_DISCONNECT) {
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usb_wait_for_disconnect(usb);
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} else {
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die("bogus action");
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}
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}
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fprintf(stderr,"finished. total time: %.3fs\n", (now() - start));
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return status;
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}
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int fb_queue_is_empty(void)
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{
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return (action_list == nullptr);
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}
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