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circuitpython/cc3200/ftp/updater.c

202 lines
7.8 KiB

/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2015 Daniel Campora
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include <stdint.h>
#include <stdbool.h>
#include "py/mpconfig.h"
#include "py/obj.h"
#include "simplelink.h"
#include "flc.h"
#include "updater.h"
#include "shamd5.h"
#include "modnetwork.h"
#include "modwlan.h"
#include "debug.h"
#include "osi.h"
/******************************************************************************
DEFINE PRIVATE CONSTANTS
******************************************************************************/
#define UPDATER_IMG_PATH "/flash/sys/mcuimg.bin"
#define UPDATER_SRVPACK_PATH "/flash/sys/servicepack.ucf"
#define UPDATER_SIGN_PATH "/flash/sys/servicepack.sig"
#define UPDATER_CA_PATH "/flash/cert/ca.pem"
#define UPDATER_CERT_PATH "/flash/cert/cert.pem"
#define UPDATER_KEY_PATH "/flash/cert/private.key"
/******************************************************************************
DEFINE TYPES
******************************************************************************/
typedef struct {
char *path;
_i32 fhandle;
_u32 fsize;
_u32 foffset;
} updater_data_t;
/******************************************************************************
DECLARE PRIVATE DATA
******************************************************************************/
static updater_data_t updater_data = { .path = NULL, .fhandle = -1, .fsize = 0, .foffset = 0 };
static OsiLockObj_t updater_LockObj;
static sBootInfo_t sBootInfo;
/******************************************************************************
DEFINE PUBLIC FUNCTIONS
******************************************************************************/
__attribute__ ((section (".boot")))
void updater_pre_init (void) {
// create the updater lock
ASSERT(OSI_OK == sl_LockObjCreate(&updater_LockObj, "UpdaterLock"));
}
bool updater_check_path (void *path) {
sl_LockObjLock (&updater_LockObj, SL_OS_WAIT_FOREVER);
if (!strcmp(UPDATER_IMG_PATH, path)) {
updater_data.fsize = IMG_SIZE;
updater_data.path = IMG_UPDATE1;
// the launchxl doesn't have enough flash space for 2 user update images
#ifdef WIPY
// check which one should be the next active image
_i32 fhandle;
if (!sl_FsOpen((unsigned char *)IMG_BOOT_INFO, FS_MODE_OPEN_READ, NULL, &fhandle)) {
ASSERT (sizeof(sBootInfo_t) == sl_FsRead(fhandle, 0, (unsigned char *)&sBootInfo, sizeof(sBootInfo_t)));
sl_FsClose(fhandle, 0, 0, 0);
// if we still have an image pending for verification, keep overwriting it
if ((sBootInfo.Status == IMG_STATUS_CHECK && sBootInfo.ActiveImg == IMG_ACT_UPDATE2) ||
(sBootInfo.ActiveImg == IMG_ACT_UPDATE1 && sBootInfo.Status != IMG_STATUS_CHECK)) {
updater_data.path = IMG_UPDATE2;
}
}
#endif
} else if (!strcmp(UPDATER_SRVPACK_PATH, path)) {
updater_data.path = IMG_SRVPACK;
updater_data.fsize = SRVPACK_SIZE;
} else if (!strcmp(UPDATER_SIGN_PATH, path)) {
updater_data.path = SRVPACK_SIGN;
updater_data.fsize = SIGN_SIZE;
} else if (!strcmp(UPDATER_CA_PATH, path)) {
updater_data.path = CA_FILE;
updater_data.fsize = CA_KEY_SIZE;
} else if (!strcmp(UPDATER_CERT_PATH, path)) {
updater_data.path = CERT_FILE;
updater_data.fsize = CA_KEY_SIZE;
} else if (!strcmp(UPDATER_KEY_PATH, path)) {
updater_data.path = KEY_FILE;
updater_data.fsize = CA_KEY_SIZE;
} else {
sl_LockObjUnlock (&updater_LockObj);
return false;
}
return true;
}
bool updater_start (void) {
_u32 AccessModeAndMaxSize = FS_MODE_OPEN_WRITE;
SlFsFileInfo_t FsFileInfo;
bool result = false;
sl_LockObjLock (&wlan_LockObj, SL_OS_WAIT_FOREVER);
if (0 != sl_FsGetInfo((_u8 *)updater_data.path, 0, &FsFileInfo)) {
// file doesn't exist, create it
AccessModeAndMaxSize = FS_MODE_OPEN_CREATE(updater_data.fsize, 0);
}
if (!sl_FsOpen((_u8 *)updater_data.path, AccessModeAndMaxSize, NULL, &updater_data.fhandle)) {
updater_data.foffset = 0;
result = true;
}
sl_LockObjUnlock (&wlan_LockObj);
return result;
}
bool updater_write (uint8_t *buf, uint32_t len) {
bool result = false;
sl_LockObjLock (&wlan_LockObj, SL_OS_WAIT_FOREVER);
if (len == sl_FsWrite(updater_data.fhandle, updater_data.foffset, buf, len)) {
updater_data.foffset += len;
result = true;
}
sl_LockObjUnlock (&wlan_LockObj);
return result;
}
void updater_finnish (void) {
_i32 fhandle;
if (updater_data.fhandle > 0) {
sl_LockObjLock (&wlan_LockObj, SL_OS_WAIT_FOREVER);
// close the file being updated
sl_FsClose(updater_data.fhandle, NULL, NULL, 0);
#ifdef WIPY
// if we still have an image pending for verification, leave the boot info as it is
if (!strncmp(IMG_PREFIX, updater_data.path, strlen(IMG_PREFIX)) && sBootInfo.Status != IMG_STATUS_CHECK) {
#else
if (!strncmp(IMG_PREFIX, updater_data.path, strlen(IMG_PREFIX))) {
#endif
#ifdef DEBUG
if (!sl_FsOpen((unsigned char *)IMG_BOOT_INFO, FS_MODE_OPEN_READ, NULL, &fhandle)) {
ASSERT (sizeof(sBootInfo_t) == sl_FsRead(fhandle, 0, (unsigned char *)&sBootInfo, sizeof(sBootInfo_t)));
sl_FsClose(fhandle, 0, 0, 0);
#endif
// open the boot info file for writing
ASSERT (sl_FsOpen((unsigned char *)IMG_BOOT_INFO, FS_MODE_OPEN_WRITE, NULL, &fhandle) == 0);
#ifdef DEBUG
}
else {
// the boot info file doesn't exist yet
_u32 BootInfoCreateFlag = _FS_FILE_OPEN_FLAG_COMMIT | _FS_FILE_PUBLIC_WRITE | _FS_FILE_PUBLIC_READ;
ASSERT (sl_FsOpen ((unsigned char *)IMG_BOOT_INFO, FS_MODE_OPEN_CREATE((2 * sizeof(sBootInfo_t)),
BootInfoCreateFlag), NULL, &fhandle) == 0);
}
#endif
// save the new boot info
#ifdef WIPY
sBootInfo.PrevImg = sBootInfo.ActiveImg;
if (sBootInfo.ActiveImg == IMG_ACT_UPDATE1) {
sBootInfo.ActiveImg = IMG_ACT_UPDATE2;
} else {
sBootInfo.ActiveImg = IMG_ACT_UPDATE1;
}
// the launchxl doesn't have enough flash space for 2 user updates
#else
sBootInfo.PrevImg = IMG_ACT_FACTORY;
sBootInfo.ActiveImg = IMG_ACT_UPDATE1;
#endif
sBootInfo.Status = IMG_STATUS_CHECK;
ASSERT (sizeof(sBootInfo_t) == sl_FsWrite(fhandle, 0, (unsigned char *)&sBootInfo, sizeof(sBootInfo_t)));
sl_FsClose(fhandle, 0, 0, 0);
}
sl_LockObjUnlock (&wlan_LockObj);
updater_data.fhandle = -1;
}
sl_LockObjUnlock (&updater_LockObj);
}