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trezor-firmware
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bootloader: more work on firmware update

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pull/25/head
Pavol Rusnak 7 years ago
parent 3318ed22f5
commit 285fb1263b
No known key found for this signature in database
GPG Key ID: 91F3B339B9A02A3D
7 changed files with 76 additions and 42 deletions
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84
micropython/bootloader/messages.c
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@ -186,22 +186,8 @@ static bool _recv_msg(uint8_t iface_num, uint32_t msg_size, uint8_t *buf, const
return true;
}
/*
static bool _decode(pb_istream_t *stream, const pb_field_t *field, void **arg)
{
pb_byte_t *buf = *arg;
memset(buf, 0, 1024);
if (stream->bytes_left > 1024 - 1) {
return false;
}
if (!pb_read(stream, buf, stream->bytes_left)) {
return false;
}
return true;
}
*/
#define MSG_RECV_INIT(TYPE) TYPE msg_recv = TYPE##_init_default
#define MSG_RECV_CALLBACK(FIELD, CALLBACK) do { msg_recv.FIELD.funcs.decode = &CALLBACK; } while (0)
#define MSG_RECV(TYPE) do { _recv_msg(iface_num, msg_size, buf, TYPE##_fields, &msg_recv); } while(0)
void process_msg_Initialize(uint8_t iface_num, uint32_t msg_size, uint8_t *buf)
@ -230,29 +216,73 @@ void process_msg_Ping(uint8_t iface_num, uint32_t msg_size, uint8_t *buf)
MSG_SEND(Success);
}
static uint32_t firmware_size, firmware_flashed, chunk_requested;
void process_msg_FirmwareErase(uint8_t iface_num, uint32_t msg_size, uint8_t *buf)
{
firmware_size = 0;
firmware_flashed = 0;
chunk_requested = 0;
MSG_RECV_INIT(FirmwareErase);
MSG_RECV(FirmwareErase);
MSG_SEND_INIT(FirmwareRequest);
MSG_SEND_ASSIGN_VALUE(offset, 0);
MSG_SEND_ASSIGN_VALUE(length, FIRMWARE_CHUNK_SIZE);
MSG_SEND(FirmwareRequest);
firmware_size = msg_recv.has_length ? msg_recv.length : 0;
if (firmware_size > 0 && firmware_size % 4 == 0) {
chunk_requested = (firmware_size > FIRMWARE_CHUNK_SIZE) ? FIRMWARE_CHUNK_SIZE : firmware_size;
MSG_SEND_INIT(FirmwareRequest);
MSG_SEND_ASSIGN_VALUE(offset, 0);
MSG_SEND_ASSIGN_VALUE(length, chunk_requested);
MSG_SEND(FirmwareRequest);
} else {
MSG_SEND_INIT(Failure);
MSG_SEND_ASSIGN_VALUE(code, FailureType_Failure_DataError);
MSG_SEND_ASSIGN_STRING(message, "Wrong firmware size");
MSG_SEND(Failure);
}
}
static uint32_t chunk_size = 0;
static bool _read_payload(pb_istream_t *stream, const pb_field_t *field, void **arg)
{
#define BUFSIZE 1024
pb_byte_t buf[BUFSIZE];
chunk_size = stream->bytes_left;
while (stream->bytes_left) {
if (!pb_read(stream, buf, (stream->bytes_left > BUFSIZE) ? BUFSIZE : stream->bytes_left)) {
return false;
}
}
return true;
}
void process_msg_FirmwareUpload(uint8_t iface_num, uint32_t msg_size, uint8_t *buf)
{
MSG_RECV_INIT(FirmwareUpload);
MSG_RECV_CALLBACK(payload, _read_payload);
MSG_RECV(FirmwareUpload);
/*
MSG_SEND_INIT(FirmwareRequest);
MSG_SEND_ASSIGN_VALUE(offset, FIRMWARE_CHUNK_SIZE);
MSG_SEND_ASSIGN_VALUE(length, FIRMWARE_CHUNK_SIZE);
MSG_SEND(FirmwareRequest);
*/
MSG_SEND_INIT(Success);
MSG_SEND(Success);
if (chunk_size != chunk_requested) {
MSG_SEND_INIT(Failure);
MSG_SEND_ASSIGN_VALUE(code, FailureType_Failure_DataError);
MSG_SEND_ASSIGN_STRING(message, "Invalid chunk size");
MSG_SEND(Failure);
}
firmware_size -= chunk_requested;
firmware_flashed += chunk_requested;
if (firmware_size > 0) {
chunk_requested = (firmware_size > FIRMWARE_CHUNK_SIZE) ? FIRMWARE_CHUNK_SIZE : firmware_size;
MSG_SEND_INIT(FirmwareRequest);
MSG_SEND_ASSIGN_VALUE(offset, firmware_flashed);
MSG_SEND_ASSIGN_VALUE(length, chunk_requested);
MSG_SEND(FirmwareRequest);
} else {
MSG_SEND_INIT(Success);
MSG_SEND(Success);
}
}
void process_msg_unknown(uint8_t iface_num, uint32_t msg_size, uint8_t *buf)

3
micropython/bootloader/protob/messages.pb.c
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@ -68,7 +68,8 @@ const pb_field_t ButtonAck_fields[1] = {
PB_LAST_FIELD
};
const pb_field_t FirmwareErase_fields[1] = {
const pb_field_t FirmwareErase_fields[2] = {
PB_FIELD( 1, UINT32 , OPTIONAL, STATIC , FIRST, FirmwareErase, length, length, 0),
PB_LAST_FIELD
};

20
micropython/bootloader/protob/messages.pb.h
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@ -40,11 +40,6 @@ typedef struct _ButtonAck {
/* @@protoc_insertion_point(struct:ButtonAck) */
} ButtonAck;
typedef struct _FirmwareErase {
char dummy_field;
/* @@protoc_insertion_point(struct:FirmwareErase) */
} FirmwareErase;
typedef struct _GetFeatures {
char dummy_field;
/* @@protoc_insertion_point(struct:GetFeatures) */
@ -111,6 +106,12 @@ typedef struct _Features {
/* @@protoc_insertion_point(struct:Features) */
} Features;
typedef struct _FirmwareErase {
bool has_length;
uint32_t length;
/* @@protoc_insertion_point(struct:FirmwareErase) */
} FirmwareErase;
typedef struct _FirmwareRequest {
bool has_offset;
uint32_t offset;
@ -156,7 +157,7 @@ typedef struct _Success {
#define Failure_init_default {false, (FailureType)0, false, ""}
#define ButtonRequest_init_default {false, (ButtonRequestType)0, false, ""}
#define ButtonAck_init_default {0}
#define FirmwareErase_init_default {0}
#define FirmwareErase_init_default {false, 0}
#define FirmwareRequest_init_default {false, 0, false, 0}
#define FirmwareUpload_init_default {{{NULL}, NULL}, false, {0, {0}}}
#define Initialize_init_zero {0}
@ -167,7 +168,7 @@ typedef struct _Success {
#define Failure_init_zero {false, (FailureType)0, false, ""}
#define ButtonRequest_init_zero {false, (ButtonRequestType)0, false, ""}
#define ButtonAck_init_zero {0}
#define FirmwareErase_init_zero {0}
#define FirmwareErase_init_zero {false, 0}
#define FirmwareRequest_init_zero {false, 0, false, 0}
#define FirmwareUpload_init_zero {{{NULL}, NULL}, false, {0, {0}}}
@ -193,6 +194,7 @@ typedef struct _Success {
#define Features_pin_cached_tag 16
#define Features_passphrase_cached_tag 17
#define Features_firmware_present_tag 18
#define FirmwareErase_length_tag 1
#define FirmwareRequest_offset_tag 1
#define FirmwareRequest_length_tag 2
#define FirmwareUpload_payload_tag 1
@ -212,7 +214,7 @@ extern const pb_field_t Success_fields[2];
extern const pb_field_t Failure_fields[3];
extern const pb_field_t ButtonRequest_fields[3];
extern const pb_field_t ButtonAck_fields[1];
extern const pb_field_t FirmwareErase_fields[1];
extern const pb_field_t FirmwareErase_fields[2];
extern const pb_field_t FirmwareRequest_fields[3];
extern const pb_field_t FirmwareUpload_fields[3];
@ -225,7 +227,7 @@ extern const pb_field_t FirmwareUpload_fields[3];
#define Failure_size 270
#define ButtonRequest_size 270
#define ButtonAck_size 0
#define FirmwareErase_size 0
#define FirmwareErase_size 6
#define FirmwareRequest_size 12
/* FirmwareUpload_size depends on runtime parameters */

1
micropython/bootloader/protob/messages.proto
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@ -107,6 +107,7 @@ message ButtonAck {
* @next Failure
*/
message FirmwareErase {
optional uint32 length = 1; // length of new firmware
}
/**

4
micropython/bootloader/protob/types.pb.h
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@ -18,13 +18,13 @@ extern "C" {
typedef enum _FailureType {
FailureType_Failure_UnexpectedMessage = 1,
FailureType_Failure_ButtonExpected = 2,
FailureType_Failure_SyntaxError = 3,
FailureType_Failure_DataError = 3,
FailureType_Failure_ActionCancelled = 4,
FailureType_Failure_PinExpected = 5,
FailureType_Failure_PinCancelled = 6,
FailureType_Failure_PinInvalid = 7,
FailureType_Failure_InvalidSignature = 8,
FailureType_Failure_Other = 9,
FailureType_Failure_ProcessError = 9,
FailureType_Failure_NotEnoughFunds = 10,
FailureType_Failure_NotInitialized = 11,
FailureType_Failure_FirmwareError = 99

4
micropython/bootloader/protob/types.proto
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@ -5,13 +5,13 @@
enum FailureType {
Failure_UnexpectedMessage = 1;
Failure_ButtonExpected = 2;
Failure_SyntaxError = 3;
Failure_DataError = 3;
Failure_ActionCancelled = 4;
Failure_PinExpected = 5;
Failure_PinCancelled = 6;
Failure_PinInvalid = 7;
Failure_InvalidSignature = 8;
Failure_Other = 9;
Failure_ProcessError = 9;
Failure_NotEnoughFunds = 10;
Failure_NotInitialized = 11;
Failure_FirmwareError = 99;

2
vendor/trezor-common vendored

@ -1 +1 @@
Subproject commit 73b9ffc36a9b54c56bbfa643b4735c63cf309ca2
Subproject commit 0001cb18c065d7f3aacd6f8d7c5be42cd7477a94
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