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bootloader: vendor nanopb as submodule

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Pavol Rusnak 2017-10-01 18:13:25 +02:00
parent 8ddcd74080
commit 63737f59b0
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15 changed files with 10 additions and 3190 deletions
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3
.gitmodules vendored
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@ -13,3 +13,6 @@
[submodule "vendor/trezor-common"] [submodule "vendor/trezor-common"]
path = vendor/trezor-common path = vendor/trezor-common
url = https://github.com/trezor/trezor-common.git url = https://github.com/trezor/trezor-common.git
[submodule "vendor/nanopb"]
path = vendor/nanopb
url = https://github.com/nanopb/nanopb.git

1
embed/bootloader/nanopb Symbolic link
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@ -0,0 +1 @@
../../vendor/nanopb

583
embed/bootloader/nanopb/pb.h
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@ -1,583 +0,0 @@
/* Common parts of the nanopb library. Most of these are quite low-level
* stuff. For the high-level interface, see pb_encode.h and pb_decode.h.
*/
#ifndef PB_H_INCLUDED
#define PB_H_INCLUDED
/*****************************************************************
* Nanopb compilation time options. You can change these here by *
* uncommenting the lines, or on the compiler command line. *
*****************************************************************/
/* Enable support for dynamically allocated fields */
/* #define PB_ENABLE_MALLOC 1 */
/* Define this if your CPU / compiler combination does not support
* unaligned memory access to packed structures. */
/* #define PB_NO_PACKED_STRUCTS 1 */
/* Increase the number of required fields that are tracked.
* A compiler warning will tell if you need this. */
/* #define PB_MAX_REQUIRED_FIELDS 256 */
/* Add support for tag numbers > 255 and fields larger than 255 bytes. */
/* #define PB_FIELD_16BIT 1 */
/* Add support for tag numbers > 65536 and fields larger than 65536 bytes. */
/* #define PB_FIELD_32BIT 1 */
/* Disable support for error messages in order to save some code space. */
/* #define PB_NO_ERRMSG 1 */
/* Disable support for custom streams (support only memory buffers). */
/* #define PB_BUFFER_ONLY 1 */
/* Switch back to the old-style callback function signature.
* This was the default until nanopb-0.2.1. */
/* #define PB_OLD_CALLBACK_STYLE */
/******************************************************************
* You usually don't need to change anything below this line. *
* Feel free to look around and use the defined macros, though. *
******************************************************************/
/* Version of the nanopb library. Just in case you want to check it in
* your own program. */
#define NANOPB_VERSION nanopb-0.3.8
/* Include all the system headers needed by nanopb. You will need the
* definitions of the following:
* - strlen, memcpy, memset functions
* - [u]int_least8_t, uint_fast8_t, [u]int_least16_t, [u]int32_t, [u]int64_t
* - size_t
* - bool
*
* If you don't have the standard header files, you can instead provide
* a custom header that defines or includes all this. In that case,
* define PB_SYSTEM_HEADER to the path of this file.
*/
#ifdef PB_SYSTEM_HEADER
#include PB_SYSTEM_HEADER
#else
#include <stdint.h>
#include <stddef.h>
#include <stdbool.h>
#include <string.h>
#ifdef PB_ENABLE_MALLOC
#include <stdlib.h>
#endif
#endif
/* Macro for defining packed structures (compiler dependent).
* This just reduces memory requirements, but is not required.
*/
#if defined(PB_NO_PACKED_STRUCTS)
/* Disable struct packing */
# define PB_PACKED_STRUCT_START
# define PB_PACKED_STRUCT_END
# define pb_packed
#elif defined(__GNUC__) || defined(__clang__)
/* For GCC and clang */
# define PB_PACKED_STRUCT_START
# define PB_PACKED_STRUCT_END
# define pb_packed __attribute__((packed))
#elif defined(__ICCARM__) || defined(__CC_ARM)
/* For IAR ARM and Keil MDK-ARM compilers */
# define PB_PACKED_STRUCT_START _Pragma("pack(push, 1)")
# define PB_PACKED_STRUCT_END _Pragma("pack(pop)")
# define pb_packed
#elif defined(_MSC_VER) && (_MSC_VER >= 1500)
/* For Microsoft Visual C++ */
# define PB_PACKED_STRUCT_START __pragma(pack(push, 1))
# define PB_PACKED_STRUCT_END __pragma(pack(pop))
# define pb_packed
#else
/* Unknown compiler */
# define PB_PACKED_STRUCT_START
# define PB_PACKED_STRUCT_END
# define pb_packed
#endif
/* Handly macro for suppressing unreferenced-parameter compiler warnings. */
#ifndef PB_UNUSED
#define PB_UNUSED(x) (void)(x)
#endif
/* Compile-time assertion, used for checking compatible compilation options.
* If this does not work properly on your compiler, use
* #define PB_NO_STATIC_ASSERT to disable it.
*
* But before doing that, check carefully the error message / place where it
* comes from to see if the error has a real cause. Unfortunately the error
* message is not always very clear to read, but you can see the reason better
* in the place where the PB_STATIC_ASSERT macro was called.
*/
#ifndef PB_NO_STATIC_ASSERT
#ifndef PB_STATIC_ASSERT
#define PB_STATIC_ASSERT(COND,MSG) typedef char PB_STATIC_ASSERT_MSG(MSG, __LINE__, __COUNTER__)[(COND)?1:-1];
#define PB_STATIC_ASSERT_MSG(MSG, LINE, COUNTER) PB_STATIC_ASSERT_MSG_(MSG, LINE, COUNTER)
#define PB_STATIC_ASSERT_MSG_(MSG, LINE, COUNTER) pb_static_assertion_##MSG##LINE##COUNTER
#endif
#else
#define PB_STATIC_ASSERT(COND,MSG)
#endif
/* Number of required fields to keep track of. */
#ifndef PB_MAX_REQUIRED_FIELDS
#define PB_MAX_REQUIRED_FIELDS 64
#endif
#if PB_MAX_REQUIRED_FIELDS < 64
#error You should not lower PB_MAX_REQUIRED_FIELDS from the default value (64).
#endif
/* List of possible field types. These are used in the autogenerated code.
* Least-significant 4 bits tell the scalar type
* Most-significant 4 bits specify repeated/required/packed etc.
*/
typedef uint_least8_t pb_type_t;
/**** Field data types ****/
/* Numeric types */
#define PB_LTYPE_VARINT 0x00 /* int32, int64, enum, bool */
#define PB_LTYPE_UVARINT 0x01 /* uint32, uint64 */
#define PB_LTYPE_SVARINT 0x02 /* sint32, sint64 */
#define PB_LTYPE_FIXED32 0x03 /* fixed32, sfixed32, float */
#define PB_LTYPE_FIXED64 0x04 /* fixed64, sfixed64, double */
/* Marker for last packable field type. */
#define PB_LTYPE_LAST_PACKABLE 0x04
/* Byte array with pre-allocated buffer.
* data_size is the length of the allocated PB_BYTES_ARRAY structure. */
#define PB_LTYPE_BYTES 0x05
/* String with pre-allocated buffer.
* data_size is the maximum length. */
#define PB_LTYPE_STRING 0x06
/* Submessage
* submsg_fields is pointer to field descriptions */
#define PB_LTYPE_SUBMESSAGE 0x07
/* Extension pseudo-field
* The field contains a pointer to pb_extension_t */
#define PB_LTYPE_EXTENSION 0x08
/* Byte array with inline, pre-allocated byffer.
* data_size is the length of the inline, allocated buffer.
* This differs from PB_LTYPE_BYTES by defining the element as
* pb_byte_t[data_size] rather than pb_bytes_array_t. */
#define PB_LTYPE_FIXED_LENGTH_BYTES 0x09
/* Number of declared LTYPES */
#define PB_LTYPES_COUNT 0x0A
#define PB_LTYPE_MASK 0x0F
/**** Field repetition rules ****/
#define PB_HTYPE_REQUIRED 0x00
#define PB_HTYPE_OPTIONAL 0x10
#define PB_HTYPE_REPEATED 0x20
#define PB_HTYPE_ONEOF 0x30
#define PB_HTYPE_MASK 0x30
/**** Field allocation types ****/
#define PB_ATYPE_STATIC 0x00
#define PB_ATYPE_POINTER 0x80
#define PB_ATYPE_CALLBACK 0x40
#define PB_ATYPE_MASK 0xC0
#define PB_ATYPE(x) ((x) & PB_ATYPE_MASK)
#define PB_HTYPE(x) ((x) & PB_HTYPE_MASK)
#define PB_LTYPE(x) ((x) & PB_LTYPE_MASK)
/* Data type used for storing sizes of struct fields
* and array counts.
*/
#if defined(PB_FIELD_32BIT)
typedef uint32_t pb_size_t;
typedef int32_t pb_ssize_t;
#elif defined(PB_FIELD_16BIT)
typedef uint_least16_t pb_size_t;
typedef int_least16_t pb_ssize_t;
#else
typedef uint_least8_t pb_size_t;
typedef int_least8_t pb_ssize_t;
#endif
#define PB_SIZE_MAX ((pb_size_t)-1)
/* Data type for storing encoded data and other byte streams.
* This typedef exists to support platforms where uint8_t does not exist.
* You can regard it as equivalent on uint8_t on other platforms.
*/
typedef uint_least8_t pb_byte_t;
/* This structure is used in auto-generated constants
* to specify struct fields.
* You can change field sizes if you need structures
* larger than 256 bytes or field tags larger than 256.
* The compiler should complain if your .proto has such
* structures. Fix that by defining PB_FIELD_16BIT or
* PB_FIELD_32BIT.
*/
PB_PACKED_STRUCT_START
typedef struct pb_field_s pb_field_t;
struct pb_field_s {
pb_size_t tag;
pb_type_t type;
pb_size_t data_offset; /* Offset of field data, relative to previous field. */
pb_ssize_t size_offset; /* Offset of array size or has-boolean, relative to data */
pb_size_t data_size; /* Data size in bytes for a single item */
pb_size_t array_size; /* Maximum number of entries in array */
/* Field definitions for submessage
* OR default value for all other non-array, non-callback types
* If null, then field will zeroed. */
const void *ptr;
} pb_packed;
PB_PACKED_STRUCT_END
/* Make sure that the standard integer types are of the expected sizes.
* Otherwise fixed32/fixed64 fields can break.
*
* If you get errors here, it probably means that your stdint.h is not
* correct for your platform.
*/
PB_STATIC_ASSERT(sizeof(int64_t) == 2 * sizeof(int32_t), INT64_T_WRONG_SIZE)
PB_STATIC_ASSERT(sizeof(uint64_t) == 2 * sizeof(uint32_t), UINT64_T_WRONG_SIZE)
/* This structure is used for 'bytes' arrays.
* It has the number of bytes in the beginning, and after that an array.
* Note that actual structs used will have a different length of bytes array.
*/
#define PB_BYTES_ARRAY_T(n) struct { pb_size_t size; pb_byte_t bytes[n]; }
#define PB_BYTES_ARRAY_T_ALLOCSIZE(n) ((size_t)n + offsetof(pb_bytes_array_t, bytes))
struct pb_bytes_array_s {
pb_size_t size;
pb_byte_t bytes[1];
};
typedef struct pb_bytes_array_s pb_bytes_array_t;
/* This structure is used for giving the callback function.
* It is stored in the message structure and filled in by the method that
* calls pb_decode.
*
* The decoding callback will be given a limited-length stream
* If the wire type was string, the length is the length of the string.
* If the wire type was a varint/fixed32/fixed64, the length is the length
* of the actual value.
* The function may be called multiple times (especially for repeated types,
* but also otherwise if the message happens to contain the field multiple
* times.)
*
* The encoding callback will receive the actual output stream.
* It should write all the data in one call, including the field tag and
* wire type. It can write multiple fields.
*
* The callback can be null if you want to skip a field.
*/
typedef struct pb_istream_s pb_istream_t;
typedef struct pb_ostream_s pb_ostream_t;
typedef struct pb_callback_s pb_callback_t;
struct pb_callback_s {
#ifdef PB_OLD_CALLBACK_STYLE
/* Deprecated since nanopb-0.2.1 */
union {
bool (*decode)(pb_istream_t *stream, const pb_field_t *field, void *arg);
bool (*encode)(pb_ostream_t *stream, const pb_field_t *field, const void *arg);
} funcs;
#else
/* New function signature, which allows modifying arg contents in callback. */
union {
bool (*decode)(pb_istream_t *stream, const pb_field_t *field, void **arg);
bool (*encode)(pb_ostream_t *stream, const pb_field_t *field, void * const *arg);
} funcs;
#endif
/* Free arg for use by callback */
void *arg;
};
/* Wire types. Library user needs these only in encoder callbacks. */
typedef enum {
PB_WT_VARINT = 0,
PB_WT_64BIT = 1,
PB_WT_STRING = 2,
PB_WT_32BIT = 5
} pb_wire_type_t;
/* Structure for defining the handling of unknown/extension fields.
* Usually the pb_extension_type_t structure is automatically generated,
* while the pb_extension_t structure is created by the user. However,
* if you want to catch all unknown fields, you can also create a custom
* pb_extension_type_t with your own callback.
*/
typedef struct pb_extension_type_s pb_extension_type_t;
typedef struct pb_extension_s pb_extension_t;
struct pb_extension_type_s {
/* Called for each unknown field in the message.
* If you handle the field, read off all of its data and return true.
* If you do not handle the field, do not read anything and return true.
* If you run into an error, return false.
* Set to NULL for default handler.
*/
bool (*decode)(pb_istream_t *stream, pb_extension_t *extension,
uint32_t tag, pb_wire_type_t wire_type);
/* Called once after all regular fields have been encoded.
* If you have something to write, do so and return true.
* If you do not have anything to write, just return true.
* If you run into an error, return false.
* Set to NULL for default handler.
*/
bool (*encode)(pb_ostream_t *stream, const pb_extension_t *extension);
/* Free field for use by the callback. */
const void *arg;
};
struct pb_extension_s {
/* Type describing the extension field. Usually you'll initialize
* this to a pointer to the automatically generated structure. */
const pb_extension_type_t *type;
/* Destination for the decoded data. This must match the datatype
* of the extension field. */
void *dest;
/* Pointer to the next extension handler, or NULL.
* If this extension does not match a field, the next handler is
* automatically called. */
pb_extension_t *next;
/* The decoder sets this to true if the extension was found.
* Ignored for encoding. */
bool found;
};
/* Memory allocation functions to use. You can define pb_realloc and
* pb_free to custom functions if you want. */
#ifdef PB_ENABLE_MALLOC
# ifndef pb_realloc
# define pb_realloc(ptr, size) realloc(ptr, size)
# endif
# ifndef pb_free
# define pb_free(ptr) free(ptr)
# endif
#endif
/* This is used to inform about need to regenerate .pb.h/.pb.c files. */
#define PB_PROTO_HEADER_VERSION 30
/* These macros are used to declare pb_field_t's in the constant array. */
/* Size of a structure member, in bytes. */
#define pb_membersize(st, m) (sizeof ((st*)0)->m)
/* Number of entries in an array. */
#define pb_arraysize(st, m) (pb_membersize(st, m) / pb_membersize(st, m[0]))
/* Delta from start of one member to the start of another member. */
#define pb_delta(st, m1, m2) ((int)offsetof(st, m1) - (int)offsetof(st, m2))
/* Marks the end of the field list */
#define PB_LAST_FIELD {0,(pb_type_t) 0,0,0,0,0,0}
/* Macros for filling in the data_offset field */
/* data_offset for first field in a message */
#define PB_DATAOFFSET_FIRST(st, m1, m2) (offsetof(st, m1))
/* data_offset for subsequent fields */
#define PB_DATAOFFSET_OTHER(st, m1, m2) (offsetof(st, m1) - offsetof(st, m2) - pb_membersize(st, m2))
/* data offset for subsequent fields inside an union (oneof) */
#define PB_DATAOFFSET_UNION(st, m1, m2) (PB_SIZE_MAX)
/* Choose first/other based on m1 == m2 (deprecated, remains for backwards compatibility) */
#define PB_DATAOFFSET_CHOOSE(st, m1, m2) (int)(offsetof(st, m1) == offsetof(st, m2) \
? PB_DATAOFFSET_FIRST(st, m1, m2) \
: PB_DATAOFFSET_OTHER(st, m1, m2))
/* Required fields are the simplest. They just have delta (padding) from
* previous field end, and the size of the field. Pointer is used for
* submessages and default values.
*/
#define PB_REQUIRED_STATIC(tag, st, m, fd, ltype, ptr) \
{tag, PB_ATYPE_STATIC | PB_HTYPE_REQUIRED | ltype, \
fd, 0, pb_membersize(st, m), 0, ptr}
/* Optional fields add the delta to the has_ variable. */
#define PB_OPTIONAL_STATIC(tag, st, m, fd, ltype, ptr) \
{tag, PB_ATYPE_STATIC | PB_HTYPE_OPTIONAL | ltype, \
fd, \
pb_delta(st, has_ ## m, m), \
pb_membersize(st, m), 0, ptr}
#define PB_SINGULAR_STATIC(tag, st, m, fd, ltype, ptr) \
{tag, PB_ATYPE_STATIC | PB_HTYPE_OPTIONAL | ltype, \
fd, 0, pb_membersize(st, m), 0, ptr}
/* Repeated fields have a _count field and also the maximum number of entries. */
#define PB_REPEATED_STATIC(tag, st, m, fd, ltype, ptr) \
{tag, PB_ATYPE_STATIC | PB_HTYPE_REPEATED | ltype, \
fd, \
pb_delta(st, m ## _count, m), \
pb_membersize(st, m[0]), \
pb_arraysize(st, m), ptr}
/* Allocated fields carry the size of the actual data, not the pointer */
#define PB_REQUIRED_POINTER(tag, st, m, fd, ltype, ptr) \
{tag, PB_ATYPE_POINTER | PB_HTYPE_REQUIRED | ltype, \
fd, 0, pb_membersize(st, m[0]), 0, ptr}
/* Optional fields don't need a has_ variable, as information would be redundant */
#define PB_OPTIONAL_POINTER(tag, st, m, fd, ltype, ptr) \
{tag, PB_ATYPE_POINTER | PB_HTYPE_OPTIONAL | ltype, \
fd, 0, pb_membersize(st, m[0]), 0, ptr}
/* Same as optional fields*/
#define PB_SINGULAR_POINTER(tag, st, m, fd, ltype, ptr) \
{tag, PB_ATYPE_POINTER | PB_HTYPE_OPTIONAL | ltype, \
fd, 0, pb_membersize(st, m[0]), 0, ptr}
/* Repeated fields have a _count field and a pointer to array of pointers */
#define PB_REPEATED_POINTER(tag, st, m, fd, ltype, ptr) \
{tag, PB_ATYPE_POINTER | PB_HTYPE_REPEATED | ltype, \
fd, pb_delta(st, m ## _count, m), \
pb_membersize(st, m[0]), 0, ptr}
/* Callbacks are much like required fields except with special datatype. */
#define PB_REQUIRED_CALLBACK(tag, st, m, fd, ltype, ptr) \
{tag, PB_ATYPE_CALLBACK | PB_HTYPE_REQUIRED | ltype, \
fd, 0, pb_membersize(st, m), 0, ptr}
#define PB_OPTIONAL_CALLBACK(tag, st, m, fd, ltype, ptr) \
{tag, PB_ATYPE_CALLBACK | PB_HTYPE_OPTIONAL | ltype, \
fd, 0, pb_membersize(st, m), 0, ptr}
#define PB_SINGULAR_CALLBACK(tag, st, m, fd, ltype, ptr) \
{tag, PB_ATYPE_CALLBACK | PB_HTYPE_OPTIONAL | ltype, \
fd, 0, pb_membersize(st, m), 0, ptr}
#define PB_REPEATED_CALLBACK(tag, st, m, fd, ltype, ptr) \
{tag, PB_ATYPE_CALLBACK | PB_HTYPE_REPEATED | ltype, \
fd, 0, pb_membersize(st, m), 0, ptr}
/* Optional extensions don't have the has_ field, as that would be redundant.
* Furthermore, the combination of OPTIONAL without has_ field is used
* for indicating proto3 style fields. Extensions exist in proto2 mode only,
* so they should be encoded according to proto2 rules. To avoid the conflict,
* extensions are marked as REQUIRED instead.
*/
#define PB_OPTEXT_STATIC(tag, st, m, fd, ltype, ptr) \
{tag, PB_ATYPE_STATIC | PB_HTYPE_REQUIRED | ltype, \
0, \
0, \
pb_membersize(st, m), 0, ptr}
#define PB_OPTEXT_POINTER(tag, st, m, fd, ltype, ptr) \
PB_OPTIONAL_POINTER(tag, st, m, fd, ltype, ptr)
#define PB_OPTEXT_CALLBACK(tag, st, m, fd, ltype, ptr) \
PB_OPTIONAL_CALLBACK(tag, st, m, fd, ltype, ptr)
/* The mapping from protobuf types to LTYPEs is done using these macros. */
#define PB_LTYPE_MAP_BOOL PB_LTYPE_VARINT
#define PB_LTYPE_MAP_BYTES PB_LTYPE_BYTES
#define PB_LTYPE_MAP_DOUBLE PB_LTYPE_FIXED64
#define PB_LTYPE_MAP_ENUM PB_LTYPE_VARINT
#define PB_LTYPE_MAP_UENUM PB_LTYPE_UVARINT
#define PB_LTYPE_MAP_FIXED32 PB_LTYPE_FIXED32
#define PB_LTYPE_MAP_FIXED64 PB_LTYPE_FIXED64
#define PB_LTYPE_MAP_FLOAT PB_LTYPE_FIXED32
#define PB_LTYPE_MAP_INT32 PB_LTYPE_VARINT
#define PB_LTYPE_MAP_INT64 PB_LTYPE_VARINT
#define PB_LTYPE_MAP_MESSAGE PB_LTYPE_SUBMESSAGE
#define PB_LTYPE_MAP_SFIXED32 PB_LTYPE_FIXED32
#define PB_LTYPE_MAP_SFIXED64 PB_LTYPE_FIXED64
#define PB_LTYPE_MAP_SINT32 PB_LTYPE_SVARINT
#define PB_LTYPE_MAP_SINT64 PB_LTYPE_SVARINT
#define PB_LTYPE_MAP_STRING PB_LTYPE_STRING
#define PB_LTYPE_MAP_UINT32 PB_LTYPE_UVARINT
#define PB_LTYPE_MAP_UINT64 PB_LTYPE_UVARINT
#define PB_LTYPE_MAP_EXTENSION PB_LTYPE_EXTENSION
#define PB_LTYPE_MAP_FIXED_LENGTH_BYTES PB_LTYPE_FIXED_LENGTH_BYTES
/* This is the actual macro used in field descriptions.
* It takes these arguments:
* - Field tag number
* - Field type: BOOL, BYTES, DOUBLE, ENUM, UENUM, FIXED32, FIXED64,
* FLOAT, INT32, INT64, MESSAGE, SFIXED32, SFIXED64
* SINT32, SINT64, STRING, UINT32, UINT64 or EXTENSION
* - Field rules: REQUIRED, OPTIONAL or REPEATED
* - Allocation: STATIC, CALLBACK or POINTER
* - Placement: FIRST or OTHER, depending on if this is the first field in structure.
* - Message name
* - Field name
* - Previous field name (or field name again for first field)
* - Pointer to default value or submsg fields.
*/
#define PB_FIELD(tag, type, rules, allocation, placement, message, field, prevfield, ptr) \
PB_ ## rules ## _ ## allocation(tag, message, field, \
PB_DATAOFFSET_ ## placement(message, field, prevfield), \
PB_LTYPE_MAP_ ## type, ptr)
/* Field description for oneof fields. This requires taking into account the
* union name also, that's why a separate set of macros is needed.
*/
#define PB_ONEOF_STATIC(u, tag, st, m, fd, ltype, ptr) \
{tag, PB_ATYPE_STATIC | PB_HTYPE_ONEOF | ltype, \
fd, pb_delta(st, which_ ## u, u.m), \
pb_membersize(st, u.m), 0, ptr}
#define PB_ONEOF_POINTER(u, tag, st, m, fd, ltype, ptr) \
{tag, PB_ATYPE_POINTER | PB_HTYPE_ONEOF | ltype, \
fd, pb_delta(st, which_ ## u, u.m), \
pb_membersize(st, u.m[0]), 0, ptr}
#define PB_ONEOF_FIELD(union_name, tag, type, rules, allocation, placement, message, field, prevfield, ptr) \
PB_ONEOF_ ## allocation(union_name, tag, message, field, \
PB_DATAOFFSET_ ## placement(message, union_name.field, prevfield), \
PB_LTYPE_MAP_ ## type, ptr)
#define PB_ANONYMOUS_ONEOF_STATIC(u, tag, st, m, fd, ltype, ptr) \
{tag, PB_ATYPE_STATIC | PB_HTYPE_ONEOF | ltype, \
fd, pb_delta(st, which_ ## u, m), \
pb_membersize(st, m), 0, ptr}
#define PB_ANONYMOUS_ONEOF_POINTER(u, tag, st, m, fd, ltype, ptr) \
{tag, PB_ATYPE_POINTER | PB_HTYPE_ONEOF | ltype, \
fd, pb_delta(st, which_ ## u, m), \
pb_membersize(st, m[0]), 0, ptr}
#define PB_ANONYMOUS_ONEOF_FIELD(union_name, tag, type, rules, allocation, placement, message, field, prevfield, ptr) \
PB_ANONYMOUS_ONEOF_ ## allocation(union_name, tag, message, field, \
PB_DATAOFFSET_ ## placement(message, field, prevfield), \
PB_LTYPE_MAP_ ## type, ptr)
/* These macros are used for giving out error messages.
* They are mostly a debugging aid; the main error information
* is the true/false return value from functions.
* Some code space can be saved by disabling the error
* messages if not used.
*
* PB_SET_ERROR() sets the error message if none has been set yet.
* msg must be a constant string literal.
* PB_GET_ERROR() always returns a pointer to a string.
* PB_RETURN_ERROR() sets the error and returns false from current
* function.
*/
#ifdef PB_NO_ERRMSG
#define PB_SET_ERROR(stream, msg) PB_UNUSED(stream)
#define PB_GET_ERROR(stream) "(errmsg disabled)"
#else
#define PB_SET_ERROR(stream, msg) (stream->errmsg = (stream)->errmsg ? (stream)->errmsg : (msg))
#define PB_GET_ERROR(stream) ((stream)->errmsg ? (stream)->errmsg : "(none)")
#endif
#define PB_RETURN_ERROR(stream, msg) return PB_SET_ERROR(stream, msg), false
#endif

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/* pb_common.c: Common support functions for pb_encode.c and pb_decode.c.
*
* 2014 Petteri Aimonen <jpa@kapsi.fi>
*/
#include "pb_common.h"
bool pb_field_iter_begin(pb_field_iter_t *iter, const pb_field_t *fields, void *dest_struct)
{
iter->start = fields;
iter->pos = fields;
iter->required_field_index = 0;
iter->dest_struct = dest_struct;
iter->pData = (char*)dest_struct + iter->pos->data_offset;
iter->pSize = (char*)iter->pData + iter->pos->size_offset;
return (iter->pos->tag != 0);
}
bool pb_field_iter_next(pb_field_iter_t *iter)
{
const pb_field_t *prev_field = iter->pos;
if (prev_field->tag == 0)
{
/* Handle empty message types, where the first field is already the terminator.
* In other cases, the iter->pos never points to the terminator. */
return false;
}
iter->pos++;
if (iter->pos->tag == 0)
{
/* Wrapped back to beginning, reinitialize */
(void)pb_field_iter_begin(iter, iter->start, iter->dest_struct);
return false;
}
else
{
/* Increment the pointers based on previous field size */
size_t prev_size = prev_field->data_size;
if (PB_HTYPE(prev_field->type) == PB_HTYPE_ONEOF &&
PB_HTYPE(iter->pos->type) == PB_HTYPE_ONEOF &&
iter->pos->data_offset == PB_SIZE_MAX)
{
/* Don't advance pointers inside unions */
return true;
}
else if (PB_ATYPE(prev_field->type) == PB_ATYPE_STATIC &&
PB_HTYPE(prev_field->type) == PB_HTYPE_REPEATED)
{
/* In static arrays, the data_size tells the size of a single entry and
* array_size is the number of entries */
prev_size *= prev_field->array_size;
}
else if (PB_ATYPE(prev_field->type) == PB_ATYPE_POINTER)
{
/* Pointer fields always have a constant size in the main structure.
* The data_size only applies to the dynamically allocated area. */
prev_size = sizeof(void*);
}
if (PB_HTYPE(prev_field->type) == PB_HTYPE_REQUIRED)
{
/* Count the required fields, in order to check their presence in the
* decoder. */
iter->required_field_index++;
}
iter->pData = (char*)iter->pData + prev_size + iter->pos->data_offset;
iter->pSize = (char*)iter->pData + iter->pos->size_offset;
return true;
}
}
bool pb_field_iter_find(pb_field_iter_t *iter, uint32_t tag)
{
const pb_field_t *start = iter->pos;
do {
if (iter->pos->tag == tag &&
PB_LTYPE(iter->pos->type) != PB_LTYPE_EXTENSION)
{
/* Found the wanted field */
return true;
}
(void)pb_field_iter_next(iter);
} while (iter->pos != start);
/* Searched all the way back to start, and found nothing. */
return false;
}

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/* pb_common.h: Common support functions for pb_encode.c and pb_decode.c.
* These functions are rarely needed by applications directly.
*/
#ifndef PB_COMMON_H_INCLUDED
#define PB_COMMON_H_INCLUDED
#include "pb.h"
#ifdef __cplusplus
extern "C" {
#endif
/* Iterator for pb_field_t list */
struct pb_field_iter_s {
const pb_field_t *start; /* Start of the pb_field_t array */
const pb_field_t *pos; /* Current position of the iterator */
unsigned required_field_index; /* Zero-based index that counts only the required fields */
void *dest_struct; /* Pointer to start of the structure */
void *pData; /* Pointer to current field value */
void *pSize; /* Pointer to count/has field */
};
typedef struct pb_field_iter_s pb_field_iter_t;
/* Initialize the field iterator structure to beginning.
* Returns false if the message type is empty. */
bool pb_field_iter_begin(pb_field_iter_t *iter, const pb_field_t *fields, void *dest_struct);
/* Advance the iterator to the next field.
* Returns false when the iterator wraps back to the first field. */
bool pb_field_iter_next(pb_field_iter_t *iter);
/* Advance the iterator until it points at a field with the given tag.
* Returns false if no such field exists. */
bool pb_field_iter_find(pb_field_iter_t *iter, uint32_t tag);
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif

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/* pb_decode.h: Functions to decode protocol buffers. Depends on pb_decode.c.
* The main function is pb_decode. You also need an input stream, and the
* field descriptions created by nanopb_generator.py.
*/
#ifndef PB_DECODE_H_INCLUDED
#define PB_DECODE_H_INCLUDED
#include "pb.h"
#ifdef __cplusplus
extern "C" {
#endif
/* Structure for defining custom input streams. You will need to provide
* a callback function to read the bytes from your storage, which can be
* for example a file or a network socket.
*
* The callback must conform to these rules:
*
* 1) Return false on IO errors. This will cause decoding to abort.
* 2) You can use state to store your own data (e.g. buffer pointer),
* and rely on pb_read to verify that no-body reads past bytes_left.
* 3) Your callback may be used with substreams, in which case bytes_left
* is different than from the main stream. Don't use bytes_left to compute
* any pointers.
*/
struct pb_istream_s
{
#ifdef PB_BUFFER_ONLY
/* Callback pointer is not used in buffer-only configuration.
* Having an int pointer here allows binary compatibility but
* gives an error if someone tries to assign callback function.
*/
int *callback;
#else
bool (*callback)(pb_istream_t *stream, pb_byte_t *buf, size_t count);
#endif
void *state; /* Free field for use by callback implementation */
size_t bytes_left;
#ifndef PB_NO_ERRMSG
const char *errmsg;
#endif
};
/***************************
* Main decoding functions *
***************************/
/* Decode a single protocol buffers message from input stream into a C structure.
* Returns true on success, false on any failure.
* The actual struct pointed to by dest must match the description in fields.
* Callback fields of the destination structure must be initialized by caller.
* All other fields will be initialized by this function.
*
* Example usage:
* MyMessage msg = {};
* uint8_t buffer[64];
* pb_istream_t stream;
*
* // ... read some data into buffer ...
*
* stream = pb_istream_from_buffer(buffer, count);
* pb_decode(&stream, MyMessage_fields, &msg);
*/
bool pb_decode(pb_istream_t *stream, const pb_field_t fields[], void *dest_struct);
/* Same as pb_decode, except does not initialize the destination structure
* to default values. This is slightly faster if you need no default values
* and just do memset(struct, 0, sizeof(struct)) yourself.
*
* This can also be used for 'merging' two messages, i.e. update only the
* fields that exist in the new message.
*
* Note: If this function returns with an error, it will not release any
* dynamically allocated fields. You will need to call pb_release() yourself.
*/
bool pb_decode_noinit(pb_istream_t *stream, const pb_field_t fields[], void *dest_struct);
/* Same as pb_decode, except expects the stream to start with the message size
* encoded as varint. Corresponds to parseDelimitedFrom() in Google's
* protobuf API.
*/
bool pb_decode_delimited(pb_istream_t *stream, const pb_field_t fields[], void *dest_struct);
#ifdef PB_ENABLE_MALLOC
/* Release any allocated pointer fields. If you use dynamic allocation, you should
* call this for any successfully decoded message when you are done with it. If
* pb_decode() returns with an error, the message is already released.
*/
void pb_release(const pb_field_t fields[], void *dest_struct);
#endif
/**************************************
* Functions for manipulating streams *
**************************************/
/* Create an input stream for reading from a memory buffer.
*
* Alternatively, you can use a custom stream that reads directly from e.g.
* a file or a network socket.
*/
pb_istream_t pb_istream_from_buffer(const pb_byte_t *buf, size_t bufsize);
/* Function to read from a pb_istream_t. You can use this if you need to
* read some custom header data, or to read data in field callbacks.
*/
bool pb_read(pb_istream_t *stream, pb_byte_t *buf, size_t count);
/************************************************
* Helper functions for writing field callbacks *
************************************************/
/* Decode the tag for the next field in the stream. Gives the wire type and
* field tag. At end of the message, returns false and sets eof to true. */
bool pb_decode_tag(pb_istream_t *stream, pb_wire_type_t *wire_type, uint32_t *tag, bool *eof);
/* Skip the field payload data, given the wire type. */
bool pb_skip_field(pb_istream_t *stream, pb_wire_type_t wire_type);
/* Decode an integer in the varint format. This works for bool, enum, int32,
* int64, uint32 and uint64 field types. */
bool pb_decode_varint(pb_istream_t *stream, uint64_t *dest);
/* Decode an integer in the varint format. This works for bool, enum, int32,
* and uint32 field types. */
bool pb_decode_varint32(pb_istream_t *stream, uint32_t *dest);
/* Decode an integer in the zig-zagged svarint format. This works for sint32
* and sint64. */
bool pb_decode_svarint(pb_istream_t *stream, int64_t *dest);
/* Decode a fixed32, sfixed32 or float value. You need to pass a pointer to
* a 4-byte wide C variable. */
bool pb_decode_fixed32(pb_istream_t *stream, void *dest);
/* Decode a fixed64, sfixed64 or double value. You need to pass a pointer to
* a 8-byte wide C variable. */
bool pb_decode_fixed64(pb_istream_t *stream, void *dest);
/* Make a limited-length substream for reading a PB_WT_STRING field. */
bool pb_make_string_substream(pb_istream_t *stream, pb_istream_t *substream);
bool pb_close_string_substream(pb_istream_t *stream, pb_istream_t *substream);
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif

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/* pb_encode.c -- encode a protobuf using minimal resources
*
* 2011 Petteri Aimonen <jpa@kapsi.fi>
*/
#include "pb.h"
#include "pb_encode.h"
#include "pb_common.h"
/* Use the GCC warn_unused_result attribute to check that all return values
* are propagated correctly. On other compilers and gcc before 3.4.0 just
* ignore the annotation.
*/
#if !defined(__GNUC__) || ( __GNUC__ < 3) || (__GNUC__ == 3 && __GNUC_MINOR__ < 4)
#define checkreturn
#else
#define checkreturn __attribute__((warn_unused_result))
#endif
/**************************************
* Declarations internal to this file *
**************************************/
typedef bool (*pb_encoder_t)(pb_ostream_t *stream, const pb_field_t *field, const void *src) checkreturn;
static bool checkreturn buf_write(pb_ostream_t *stream, const pb_byte_t *buf, size_t count);
static bool checkreturn encode_array(pb_ostream_t *stream, const pb_field_t *field, const void *pData, size_t count, pb_encoder_t func);
static bool checkreturn encode_field(pb_ostream_t *stream, const pb_field_t *field, const void *pData);
static bool checkreturn default_extension_encoder(pb_ostream_t *stream, const pb_extension_t *extension);
static bool checkreturn encode_extension_field(pb_ostream_t *stream, const pb_field_t *field, const void *pData);
static void *pb_const_cast(const void *p);
static bool checkreturn pb_enc_varint(pb_ostream_t *stream, const pb_field_t *field, const void *src);
static bool checkreturn pb_enc_uvarint(pb_ostream_t *stream, const pb_field_t *field, const void *src);
static bool checkreturn pb_enc_svarint(pb_ostream_t *stream, const pb_field_t *field, const void *src);
static bool checkreturn pb_enc_fixed32(pb_ostream_t *stream, const pb_field_t *field, const void *src);
static bool checkreturn pb_enc_fixed64(pb_ostream_t *stream, const pb_field_t *field, const void *src);
static bool checkreturn pb_enc_bytes(pb_ostream_t *stream, const pb_field_t *field, const void *src);
static bool checkreturn pb_enc_string(pb_ostream_t *stream, const pb_field_t *field, const void *src);
static bool checkreturn pb_enc_submessage(pb_ostream_t *stream, const pb_field_t *field, const void *src);
static bool checkreturn pb_enc_fixed_length_bytes(pb_ostream_t *stream, const pb_field_t *field, const void *src);
/* --- Function pointers to field encoders ---
* Order in the array must match pb_action_t LTYPE numbering.
*/
static const pb_encoder_t PB_ENCODERS[PB_LTYPES_COUNT] = {
&pb_enc_varint,
&pb_enc_uvarint,
&pb_enc_svarint,
&pb_enc_fixed32,
&pb_enc_fixed64,
&pb_enc_bytes,
&pb_enc_string,
&pb_enc_submessage,
NULL, /* extensions */
&pb_enc_fixed_length_bytes
};
/*******************************
* pb_ostream_t implementation *
*******************************/
static bool checkreturn buf_write(pb_ostream_t *stream, const pb_byte_t *buf, size_t count)
{
size_t i;
pb_byte_t *dest = (pb_byte_t*)stream->state;
stream->state = dest + count;
for (i = 0; i < count; i++)
dest[i] = buf[i];
return true;
}
pb_ostream_t pb_ostream_from_buffer(pb_byte_t *buf, size_t bufsize)
{
pb_ostream_t stream;
#ifdef PB_BUFFER_ONLY
stream.callback = (void*)1; /* Just a marker value */
#else
stream.callback = &buf_write;
#endif
stream.state = buf;
stream.max_size = bufsize;
stream.bytes_written = 0;
#ifndef PB_NO_ERRMSG
stream.errmsg = NULL;
#endif
return stream;
}
bool checkreturn pb_write(pb_ostream_t *stream, const pb_byte_t *buf, size_t count)
{
if (stream->callback != NULL)
{
if (stream->bytes_written + count > stream->max_size)
PB_RETURN_ERROR(stream, "stream full");
#ifdef PB_BUFFER_ONLY
if (!buf_write(stream, buf, count))
PB_RETURN_ERROR(stream, "io error");
#else
if (!stream->callback(stream, buf, count))
PB_RETURN_ERROR(stream, "io error");
#endif
}
stream->bytes_written += count;
return true;
}
/*************************
* Encode a single field *
*************************/
/* Encode a static array. Handles the size calculations and possible packing. */
static bool checkreturn encode_array(pb_ostream_t *stream, const pb_field_t *field,
const void *pData, size_t count, pb_encoder_t func)
{
size_t i;
const void *p;
size_t size;
if (count == 0)
return true;
if (PB_ATYPE(field->type) != PB_ATYPE_POINTER && count > field->array_size)
PB_RETURN_ERROR(stream, "array max size exceeded");
/* We always pack arrays if the datatype allows it. */
if (PB_LTYPE(field->type) <= PB_LTYPE_LAST_PACKABLE)
{
if (!pb_encode_tag(stream, PB_WT_STRING, field->tag))
return false;
/* Determine the total size of packed array. */
if (PB_LTYPE(field->type) == PB_LTYPE_FIXED32)
{
size = 4 * count;
}
else if (PB_LTYPE(field->type) == PB_LTYPE_FIXED64)
{
size = 8 * count;
}
else
{
pb_ostream_t sizestream = PB_OSTREAM_SIZING;
p = pData;
for (i = 0; i < count; i++)
{
if (!func(&sizestream, field, p))
return false;
p = (const char*)p + field->data_size;
}
size = sizestream.bytes_written;
}
if (!pb_encode_varint(stream, (uint64_t)size))
return false;
if (stream->callback == NULL)
return pb_write(stream, NULL, size); /* Just sizing.. */
/* Write the data */
p = pData;
for (i = 0; i < count; i++)
{
if (!func(stream, field, p))
return false;
p = (const char*)p + field->data_size;
}
}
else
{
p = pData;
for (i = 0; i < count; i++)
{
if (!pb_encode_tag_for_field(stream, field))
return false;
/* Normally the data is stored directly in the array entries, but
* for pointer-type string and bytes fields, the array entries are
* actually pointers themselves also. So we have to dereference once
* more to get to the actual data. */
if (PB_ATYPE(field->type) == PB_ATYPE_POINTER &&
(PB_LTYPE(field->type) == PB_LTYPE_STRING ||
PB_LTYPE(field->type) == PB_LTYPE_BYTES))
{
if (!func(stream, field, *(const void* const*)p))
return false;
}
else
{
if (!func(stream, field, p))
return false;
}
p = (const char*)p + field->data_size;
}
}
return true;
}
/* In proto3, all fields are optional and are only encoded if their value is "non-zero".
* This function implements the check for the zero value. */
static bool pb_check_proto3_default_value(const pb_field_t *field, const void *pData)
{
if (PB_ATYPE(field->type) == PB_ATYPE_STATIC)
{
if (PB_LTYPE(field->type) == PB_LTYPE_BYTES)
{
const pb_bytes_array_t *bytes = (const pb_bytes_array_t*)pData;
return bytes->size == 0;
}
else if (PB_LTYPE(field->type) == PB_LTYPE_STRING)
{
return *(const char*)pData == '\0';
}
else if (PB_LTYPE(field->type) == PB_LTYPE_FIXED_LENGTH_BYTES)
{
/* Fixed length bytes is only empty if its length is fixed
* as 0. Which would be pretty strange, but we can check
* it anyway. */
return field->data_size == 0;
}
else if (PB_LTYPE(field->type) == PB_LTYPE_SUBMESSAGE)
{
/* Check all fields in the submessage to find if any of them
* are non-zero. The comparison cannot be done byte-per-byte
* because the C struct may contain padding bytes that must
* be skipped.
*/
pb_field_iter_t iter;
if (pb_field_iter_begin(&iter, (const pb_field_t*)field->ptr, pb_const_cast(pData)))
{
do
{
if (!pb_check_proto3_default_value(iter.pos, iter.pData))
{
return false;
}
} while (pb_field_iter_next(&iter));
}
return true;
}
}
{
/* Catch-all branch that does byte-per-byte comparison for zero value.
*
* This is for all pointer fields, and for static PB_LTYPE_VARINT,
* UVARINT, SVARINT, FIXED32, FIXED64, EXTENSION fields, and also
* callback fields. These all have integer or pointer value which
* can be compared with 0.
*/
pb_size_t i;
const char *p = (const char*)pData;
for (i = 0; i < field->data_size; i++)
{
if (p[i] != 0)
{
return false;
}
}
return true;
}
}
/* Encode a field with static or pointer allocation, i.e. one whose data
* is available to the encoder directly. */
static bool checkreturn encode_basic_field(pb_ostream_t *stream,
const pb_field_t *field, const void *pData)
{
pb_encoder_t func;
bool implicit_has;
const void *pSize = &implicit_has;
func = PB_ENCODERS[PB_LTYPE(field->type)];
if (field->size_offset)
{
/* Static optional, repeated or oneof field */
pSize = (const char*)pData + field->size_offset;
}
else if (PB_HTYPE(field->type) == PB_HTYPE_OPTIONAL)
{
/* Proto3 style field, optional but without explicit has_ field. */
implicit_has = !pb_check_proto3_default_value(field, pData);
}
else
{
/* Required field, always present */
implicit_has = true;
}
if (PB_ATYPE(field->type) == PB_ATYPE_POINTER)
{
/* pData is a pointer to the field, which contains pointer to
* the data. If the 2nd pointer is NULL, it is interpreted as if
* the has_field was false.
*/
pData = *(const void* const*)pData;
implicit_has = (pData != NULL);
}
switch (PB_HTYPE(field->type))
{
case PB_HTYPE_REQUIRED:
if (!pData)
PB_RETURN_ERROR(stream, "missing required field");
if (!pb_encode_tag_for_field(stream, field))
return false;
if (!func(stream, field, pData))
return false;
break;
case PB_HTYPE_OPTIONAL:
if (*(const bool*)pSize)
{
if (!pb_encode_tag_for_field(stream, field))
return false;
if (!func(stream, field, pData))
return false;
}
break;
case PB_HTYPE_REPEATED:
if (!encode_array(stream, field, pData, *(const pb_size_t*)pSize, func))
return false;
break;
case PB_HTYPE_ONEOF:
if (*(const pb_size_t*)pSize == field->tag)
{
if (!pb_encode_tag_for_field(stream, field))
return false;
if (!func(stream, field, pData))
return false;
}
break;
default:
PB_RETURN_ERROR(stream, "invalid field type");
}
return true;
}
/* Encode a field with callback semantics. This means that a user function is
* called to provide and encode the actual data. */
static bool checkreturn encode_callback_field(pb_ostream_t *stream,
const pb_field_t *field, const void *pData)
{
const pb_callback_t *callback = (const pb_callback_t*)pData;
#ifdef PB_OLD_CALLBACK_STYLE
const void *arg = callback->arg;
#else
void * const *arg = &(callback->arg);
#endif
if (callback->funcs.encode != NULL)
{
if (!callback->funcs.encode(stream, field, arg))
PB_RETURN_ERROR(stream, "callback error");
}
return true;
}
/* Encode a single field of any callback or static type. */
static bool checkreturn encode_field(pb_ostream_t *stream,
const pb_field_t *field, const void *pData)
{
switch (PB_ATYPE(field->type))
{
case PB_ATYPE_STATIC:
case PB_ATYPE_POINTER:
return encode_basic_field(stream, field, pData);
case PB_ATYPE_CALLBACK:
return encode_callback_field(stream, field, pData);
default:
PB_RETURN_ERROR(stream, "invalid field type");
}
}
/* Default handler for extension fields. Expects to have a pb_field_t
* pointer in the extension->type->arg field. */
static bool checkreturn default_extension_encoder(pb_ostream_t *stream,
const pb_extension_t *extension)
{
const pb_field_t *field = (const pb_field_t*)extension->type->arg;
if (PB_ATYPE(field->type) == PB_ATYPE_POINTER)
{
/* For pointer extensions, the pointer is stored directly
* in the extension structure. This avoids having an extra
* indirection. */
return encode_field(stream, field, &extension->dest);
}
else
{
return encode_field(stream, field, extension->dest);
}
}
/* Walk through all the registered extensions and give them a chance
* to encode themselves. */
static bool checkreturn encode_extension_field(pb_ostream_t *stream,
const pb_field_t *field, const void *pData)
{
const pb_extension_t *extension = *(const pb_extension_t* const *)pData;
PB_UNUSED(field);
while (extension)
{
bool status;
if (extension->type->encode)
status = extension->type->encode(stream, extension);
else
status = default_extension_encoder(stream, extension);
if (!status)
return false;
extension = extension->next;
}
return true;
}
/*********************
* Encode all fields *
*********************/
static void *pb_const_cast(const void *p)
{
/* Note: this casts away const, in order to use the common field iterator
* logic for both encoding and decoding. */
union {
void *p1;
const void *p2;
} t;
t.p2 = p;
return t.p1;
}
bool checkreturn pb_encode(pb_ostream_t *stream, const pb_field_t fields[], const void *src_struct)
{
pb_field_iter_t iter;
if (!pb_field_iter_begin(&iter, fields, pb_const_cast(src_struct)))
return true; /* Empty message type */
do {
if (PB_LTYPE(iter.pos->type) == PB_LTYPE_EXTENSION)
{
/* Special case for the extension field placeholder */
if (!encode_extension_field(stream, iter.pos, iter.pData))
return false;
}
else
{
/* Regular field */
if (!encode_field(stream, iter.pos, iter.pData))
return false;
}
} while (pb_field_iter_next(&iter));
return true;
}
bool pb_encode_delimited(pb_ostream_t *stream, const pb_field_t fields[], const void *src_struct)
{
return pb_encode_submessage(stream, fields, src_struct);
}
bool pb_get_encoded_size(size_t *size, const pb_field_t fields[], const void *src_struct)
{
pb_ostream_t stream = PB_OSTREAM_SIZING;
if (!pb_encode(&stream, fields, src_struct))
return false;
*size = stream.bytes_written;
return true;
}
/********************
* Helper functions *
********************/
bool checkreturn pb_encode_varint(pb_ostream_t *stream, uint64_t value)
{
pb_byte_t buffer[10];
size_t i = 0;
if (value <= 0x7F)
{
pb_byte_t v = (pb_byte_t)value;
return pb_write(stream, &v, 1);
}
while (value)
{
buffer[i] = (pb_byte_t)((value & 0x7F) | 0x80);
value >>= 7;
i++;
}
buffer[i-1] &= 0x7F; /* Unset top bit on last byte */
return pb_write(stream, buffer, i);
}
bool checkreturn pb_encode_svarint(pb_ostream_t *stream, int64_t value)
{
uint64_t zigzagged;
if (value < 0)
zigzagged = ~((uint64_t)value << 1);
else
zigzagged = (uint64_t)value << 1;
return pb_encode_varint(stream, zigzagged);
}
bool checkreturn pb_encode_fixed32(pb_ostream_t *stream, const void *value)
{
uint32_t val = *(const uint32_t*)value;
pb_byte_t bytes[4];
bytes[0] = (pb_byte_t)(val & 0xFF);
bytes[1] = (pb_byte_t)((val >> 8) & 0xFF);
bytes[2] = (pb_byte_t)((val >> 16) & 0xFF);
bytes[3] = (pb_byte_t)((val >> 24) & 0xFF);
return pb_write(stream, bytes, 4);
}
bool checkreturn pb_encode_fixed64(pb_ostream_t *stream, const void *value)
{
uint64_t val = *(const uint64_t*)value;
pb_byte_t bytes[8];
bytes[0] = (pb_byte_t)(val & 0xFF);
bytes[1] = (pb_byte_t)((val >> 8) & 0xFF);
bytes[2] = (pb_byte_t)((val >> 16) & 0xFF);
bytes[3] = (pb_byte_t)((val >> 24) & 0xFF);
bytes[4] = (pb_byte_t)((val >> 32) & 0xFF);
bytes[5] = (pb_byte_t)((val >> 40) & 0xFF);
bytes[6] = (pb_byte_t)((val >> 48) & 0xFF);
bytes[7] = (pb_byte_t)((val >> 56) & 0xFF);
return pb_write(stream, bytes, 8);
}
bool checkreturn pb_encode_tag(pb_ostream_t *stream, pb_wire_type_t wiretype, uint32_t field_number)
{
uint64_t tag = ((uint64_t)field_number << 3) | wiretype;
return pb_encode_varint(stream, tag);
}
bool checkreturn pb_encode_tag_for_field(pb_ostream_t *stream, const pb_field_t *field)
{
pb_wire_type_t wiretype;
switch (PB_LTYPE(field->type))
{
case PB_LTYPE_VARINT:
case PB_LTYPE_UVARINT:
case PB_LTYPE_SVARINT:
wiretype = PB_WT_VARINT;
break;
case PB_LTYPE_FIXED32:
wiretype = PB_WT_32BIT;
break;
case PB_LTYPE_FIXED64:
wiretype = PB_WT_64BIT;
break;
case PB_LTYPE_BYTES:
case PB_LTYPE_STRING:
case PB_LTYPE_SUBMESSAGE:
case PB_LTYPE_FIXED_LENGTH_BYTES:
wiretype = PB_WT_STRING;
break;
default:
PB_RETURN_ERROR(stream, "invalid field type");
}
return pb_encode_tag(stream, wiretype, field->tag);
}
bool checkreturn pb_encode_string(pb_ostream_t *stream, const pb_byte_t *buffer, size_t size)
{
if (!pb_encode_varint(stream, (uint64_t)size))
return false;
return pb_write(stream, buffer, size);
}
bool checkreturn pb_encode_submessage(pb_ostream_t *stream, const pb_field_t fields[], const void *src_struct)
{
/* First calculate the message size using a non-writing substream. */
pb_ostream_t substream = PB_OSTREAM_SIZING;
size_t size;
bool status;
if (!pb_encode(&substream, fields, src_struct))
{
#ifndef PB_NO_ERRMSG
stream->errmsg = substream.errmsg;
#endif
return false;
}
size = substream.bytes_written;
if (!pb_encode_varint(stream, (uint64_t)size))
return false;
if (stream->callback == NULL)
return pb_write(stream, NULL, size); /* Just sizing */
if (stream->bytes_written + size > stream->max_size)
PB_RETURN_ERROR(stream, "stream full");
/* Use a substream to verify that a callback doesn't write more than
* what it did the first time. */
substream.callback = stream->callback;
substream.state = stream->state;
substream.max_size = size;
substream.bytes_written = 0;
#ifndef PB_NO_ERRMSG
substream.errmsg = NULL;
#endif
status = pb_encode(&substream, fields, src_struct);
stream->bytes_written += substream.bytes_written;
stream->state = substream.state;
#ifndef PB_NO_ERRMSG
stream->errmsg = substream.errmsg;
#endif
if (substream.bytes_written != size)
PB_RETURN_ERROR(stream, "submsg size changed");
return status;
}
/* Field encoders */
static bool checkreturn pb_enc_varint(pb_ostream_t *stream, const pb_field_t *field, const void *src)
{
int64_t value = 0;
if (field->data_size == sizeof(int_least8_t))
value = *(const int_least8_t*)src;
else if (field->data_size == sizeof(int_least16_t))
value = *(const int_least16_t*)src;
else if (field->data_size == sizeof(int32_t))
value = *(const int32_t*)src;
else if (field->data_size == sizeof(int64_t))
value = *(const int64_t*)src;
else
PB_RETURN_ERROR(stream, "invalid data_size");
return pb_encode_varint(stream, (uint64_t)value);
}
static bool checkreturn pb_enc_uvarint(pb_ostream_t *stream, const pb_field_t *field, const void *src)
{
uint64_t value = 0;
if (field->data_size == sizeof(uint_least8_t))
value = *(const uint_least8_t*)src;
else if (field->data_size == sizeof(uint_least16_t))
value = *(const uint_least16_t*)src;
else if (field->data_size == sizeof(uint32_t))
value = *(const uint32_t*)src;
else if (field->data_size == sizeof(uint64_t))
value = *(const uint64_t*)src;
else
PB_RETURN_ERROR(stream, "invalid data_size");
return pb_encode_varint(stream, value);
}
static bool checkreturn pb_enc_svarint(pb_ostream_t *stream, const pb_field_t *field, const void *src)
{
int64_t value = 0;
if (field->data_size == sizeof(int_least8_t))
value = *(const int_least8_t*)src;
else if (field->data_size == sizeof(int_least16_t))
value = *(const int_least16_t*)src;
else if (field->data_size == sizeof(int32_t))
value = *(const int32_t*)src;
else if (field->data_size == sizeof(int64_t))
value = *(const int64_t*)src;
else
PB_RETURN_ERROR(stream, "invalid data_size");
return pb_encode_svarint(stream, value);
}
static bool checkreturn pb_enc_fixed64(pb_ostream_t *stream, const pb_field_t *field, const void *src)
{
PB_UNUSED(field);
return pb_encode_fixed64(stream, src);
}
static bool checkreturn pb_enc_fixed32(pb_ostream_t *stream, const pb_field_t *field, const void *src)
{
PB_UNUSED(field);
return pb_encode_fixed32(stream, src);
}
static bool checkreturn pb_enc_bytes(pb_ostream_t *stream, const pb_field_t *field, const void *src)
{
const pb_bytes_array_t *bytes = NULL;
bytes = (const pb_bytes_array_t*)src;
if (src == NULL)
{
/* Treat null pointer as an empty bytes field */
return pb_encode_string(stream, NULL, 0);
}
if (PB_ATYPE(field->type) == PB_ATYPE_STATIC &&
PB_BYTES_ARRAY_T_ALLOCSIZE(bytes->size) > field->data_size)
{
PB_RETURN_ERROR(stream, "bytes size exceeded");
}
return pb_encode_string(stream, bytes->bytes, bytes->size);
}
static bool checkreturn pb_enc_string(pb_ostream_t *stream, const pb_field_t *field, const void *src)
{
size_t size = 0;
size_t max_size = field->data_size;
const char *p = (const char*)src;
if (PB_ATYPE(field->type) == PB_ATYPE_POINTER)
max_size = (size_t)-1;
if (src == NULL)
{
size = 0; /* Treat null pointer as an empty string */
}
else
{
/* strnlen() is not always available, so just use a loop */
while (size < max_size && *p != '\0')
{
size++;
p++;
}
}
return pb_encode_string(stream, (const pb_byte_t*)src, size);
}
static bool checkreturn pb_enc_submessage(pb_ostream_t *stream, const pb_field_t *field, const void *src)
{
if (field->ptr == NULL)
PB_RETURN_ERROR(stream, "invalid field descriptor");
return pb_encode_submessage(stream, (const pb_field_t*)field->ptr, src);
}
static bool checkreturn pb_enc_fixed_length_bytes(pb_ostream_t *stream, const pb_field_t *field, const void *src)
{
return pb_encode_string(stream, (const pb_byte_t*)src, field->data_size);
}

154
embed/bootloader/nanopb/pb_encode.h
View File

@ -1,154 +0,0 @@
/* pb_encode.h: Functions to encode protocol buffers. Depends on pb_encode.c.
* The main function is pb_encode. You also need an output stream, and the
* field descriptions created by nanopb_generator.py.
*/
#ifndef PB_ENCODE_H_INCLUDED
#define PB_ENCODE_H_INCLUDED
#include "pb.h"
#ifdef __cplusplus
extern "C" {
#endif
/* Structure for defining custom output streams. You will need to provide
* a callback function to write the bytes to your storage, which can be
* for example a file or a network socket.
*
* The callback must conform to these rules:
*
* 1) Return false on IO errors. This will cause encoding to abort.
* 2) You can use state to store your own data (e.g. buffer pointer).
* 3) pb_write will update bytes_written after your callback runs.
* 4) Substreams will modify max_size and bytes_written. Don't use them
* to calculate any pointers.
*/
struct pb_ostream_s
{
#ifdef PB_BUFFER_ONLY
/* Callback pointer is not used in buffer-only configuration.
* Having an int pointer here allows binary compatibility but
* gives an error if someone tries to assign callback function.
* Also, NULL pointer marks a 'sizing stream' that does not
* write anything.
*/
int *callback;
#else
bool (*callback)(pb_ostream_t *stream, const pb_byte_t *buf, size_t count);
#endif
void *state; /* Free field for use by callback implementation. */
size_t max_size; /* Limit number of output bytes written (or use SIZE_MAX). */
size_t bytes_written; /* Number of bytes written so far. */
#ifndef PB_NO_ERRMSG
const char *errmsg;
#endif
};
/***************************
* Main encoding functions *
***************************/
/* Encode a single protocol buffers message from C structure into a stream.
* Returns true on success, false on any failure.
* The actual struct pointed to by src_struct must match the description in fields.
* All required fields in the struct are assumed to have been filled in.
*
* Example usage:
* MyMessage msg = {};
* uint8_t buffer[64];
* pb_ostream_t stream;
*
* msg.field1 = 42;
* stream = pb_ostream_from_buffer(buffer, sizeof(buffer));
* pb_encode(&stream, MyMessage_fields, &msg);
*/
bool pb_encode(pb_ostream_t *stream, const pb_field_t fields[], const void *src_struct);
/* Same as pb_encode, but prepends the length of the message as a varint.
* Corresponds to writeDelimitedTo() in Google's protobuf API.
*/
bool pb_encode_delimited(pb_ostream_t *stream, const pb_field_t fields[], const void *src_struct);
/* Encode the message to get the size of the encoded data, but do not store
* the data. */
bool pb_get_encoded_size(size_t *size, const pb_field_t fields[], const void *src_struct);
/**************************************
* Functions for manipulating streams *
**************************************/
/* Create an output stream for writing into a memory buffer.
* The number of bytes written can be found in stream.bytes_written after
* encoding the message.
*
* Alternatively, you can use a custom stream that writes directly to e.g.
* a file or a network socket.
*/
pb_ostream_t pb_ostream_from_buffer(pb_byte_t *buf, size_t bufsize);
/* Pseudo-stream for measuring the size of a message without actually storing
* the encoded data.
*
* Example usage:
* MyMessage msg = {};
* pb_ostream_t stream = PB_OSTREAM_SIZING;
* pb_encode(&stream, MyMessage_fields, &msg);
* printf("Message size is %d\n", stream.bytes_written);
*/
#ifndef PB_NO_ERRMSG
#define PB_OSTREAM_SIZING {0,0,0,0,0}
#else
#define PB_OSTREAM_SIZING {0,0,0,0}
#endif
/* Function to write into a pb_ostream_t stream. You can use this if you need
* to append or prepend some custom headers to the message.
*/
bool pb_write(pb_ostream_t *stream, const pb_byte_t *buf, size_t count);
/************************************************
* Helper functions for writing field callbacks *
************************************************/
/* Encode field header based on type and field number defined in the field
* structure. Call this from the callback before writing out field contents. */
bool pb_encode_tag_for_field(pb_ostream_t *stream, const pb_field_t *field);
/* Encode field header by manually specifing wire type. You need to use this
* if you want to write out packed arrays from a callback field. */
bool pb_encode_tag(pb_ostream_t *stream, pb_wire_type_t wiretype, uint32_t field_number);
/* Encode an integer in the varint format.
* This works for bool, enum, int32, int64, uint32 and uint64 field types. */
bool pb_encode_varint(pb_ostream_t *stream, uint64_t value);
/* Encode an integer in the zig-zagged svarint format.
* This works for sint32 and sint64. */
bool pb_encode_svarint(pb_ostream_t *stream, int64_t value);
/* Encode a string or bytes type field. For strings, pass strlen(s) as size. */
bool pb_encode_string(pb_ostream_t *stream, const pb_byte_t *buffer, size_t size);
/* Encode a fixed32, sfixed32 or float value.
* You need to pass a pointer to a 4-byte wide C variable. */
bool pb_encode_fixed32(pb_ostream_t *stream, const void *value);
/* Encode a fixed64, sfixed64 or double value.
* You need to pass a pointer to a 8-byte wide C variable. */
bool pb_encode_fixed64(pb_ostream_t *stream, const void *value);
/* Encode a submessage field.
* You need to pass the pb_field_t array and pointer to struct, just like
* with pb_encode(). This internally encodes the submessage twice, first to
* calculate message size and then to actually write it out.
*/
bool pb_encode_submessage(pb_ostream_t *stream, const pb_field_t fields[], const void *src_struct);
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif

2
embed/bootloader/protob/Makefile
View File

@ -1,7 +1,7 @@
all: messages.pb.c types.pb.c all: messages.pb.c types.pb.c
%.pb.c: %.pb %.options %.pb.c: %.pb %.options
nanopb_generator.py $< -T ../../../vendor/nanopb/generator/nanopb_generator.py $< -T
%.pb: %.proto %.pb: %.proto
protoc -I/usr/include -I. $< -o $@ protoc -I/usr/include -I. $< -o $@

2
embed/bootloader/protob/messages.pb.c
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@ -1,5 +1,5 @@
/* Automatically generated nanopb constant definitions */ /* Automatically generated nanopb constant definitions */
/* Generated by nanopb-0.3.8 */ /* Generated by nanopb-0.4.0-dev */
#include "messages.pb.h" #include "messages.pb.h"

2
embed/bootloader/protob/messages.pb.h
View File

@ -1,5 +1,5 @@
/* Automatically generated nanopb header */ /* Automatically generated nanopb header */
/* Generated by nanopb-0.3.8 */ /* Generated by nanopb-0.4.0-dev */
#ifndef PB_MESSAGES_PB_H_INCLUDED #ifndef PB_MESSAGES_PB_H_INCLUDED
#define PB_MESSAGES_PB_H_INCLUDED #define PB_MESSAGES_PB_H_INCLUDED

2
embed/bootloader/protob/types.pb.c
View File

@ -1,5 +1,5 @@
/* Automatically generated nanopb constant definitions */ /* Automatically generated nanopb constant definitions */
/* Generated by nanopb-0.3.8 */ /* Generated by nanopb-0.4.0-dev */
#include "types.pb.h" #include "types.pb.h"

2
embed/bootloader/protob/types.pb.h
View File

@ -1,5 +1,5 @@
/* Automatically generated nanopb header */ /* Automatically generated nanopb header */
/* Generated by nanopb-0.3.8 */ /* Generated by nanopb-0.4.0-dev */
#ifndef PB_TYPES_PB_H_INCLUDED #ifndef PB_TYPES_PB_H_INCLUDED
#define PB_TYPES_PB_H_INCLUDED #define PB_TYPES_PB_H_INCLUDED

1
vendor/nanopb vendored Submodule

@ -0,0 +1 @@
Subproject commit 2c4c3948a9f9e2eb573706a354b89a55cb85639f