67 lines
2.1 KiB
C
67 lines
2.1 KiB
C
#ifdef HAVE_EIP712_FULL_SUPPORT
|
|
|
|
#include "schema_hash.h"
|
|
#include "hash_bytes.h"
|
|
#include "typed_data.h"
|
|
#include "format_hash_field_type.h"
|
|
#include "context.h"
|
|
|
|
bool compute_schema_hash(void)
|
|
{
|
|
const void *struct_ptr;
|
|
uint8_t structs_count;
|
|
const void *field_ptr;
|
|
uint8_t fields_count;
|
|
const char *name;
|
|
uint8_t name_length;
|
|
cx_sha256_t hash_ctx; // sha224
|
|
|
|
cx_sha224_init(&hash_ctx);
|
|
|
|
struct_ptr = get_structs_array(&structs_count);
|
|
hash_byte('{', (cx_hash_t*)&hash_ctx);
|
|
while (structs_count-- > 0)
|
|
{
|
|
name = get_struct_name(struct_ptr, &name_length);
|
|
hash_byte('"', (cx_hash_t*)&hash_ctx);
|
|
hash_nbytes((uint8_t*)name, name_length, (cx_hash_t*)&hash_ctx);
|
|
hash_nbytes((uint8_t*)"\":[", 3, (cx_hash_t*)&hash_ctx);
|
|
field_ptr = get_struct_fields_array(struct_ptr, &fields_count);
|
|
while (fields_count-- > 0)
|
|
{
|
|
hash_nbytes((uint8_t*)"{\"name\":\"", 9, (cx_hash_t*)&hash_ctx);
|
|
name = get_struct_field_keyname(field_ptr, &name_length);
|
|
hash_nbytes((uint8_t*)name, name_length, (cx_hash_t*)&hash_ctx);
|
|
hash_nbytes((uint8_t*)"\",\"type\":\"", 10, (cx_hash_t*)&hash_ctx);
|
|
if (!format_hash_field_type(field_ptr, (cx_hash_t*)&hash_ctx))
|
|
{
|
|
return false;
|
|
}
|
|
hash_nbytes((uint8_t*)"\"}", 2, (cx_hash_t*)&hash_ctx);
|
|
if (fields_count > 0)
|
|
{
|
|
hash_byte(',', (cx_hash_t*)&hash_ctx);
|
|
}
|
|
field_ptr = get_next_struct_field(field_ptr);
|
|
}
|
|
hash_byte(']', (cx_hash_t*)&hash_ctx);
|
|
if (structs_count > 0)
|
|
{
|
|
hash_byte(',', (cx_hash_t*)&hash_ctx);
|
|
}
|
|
struct_ptr = get_next_struct(struct_ptr);
|
|
}
|
|
hash_byte('}', (cx_hash_t*)&hash_ctx);
|
|
|
|
// copy hash into context struct
|
|
cx_hash((cx_hash_t*)&hash_ctx,
|
|
CX_LAST,
|
|
NULL,
|
|
0,
|
|
eip712_context->schema_hash,
|
|
sizeof(eip712_context->schema_hash));
|
|
return true;
|
|
}
|
|
|
|
#endif // HAVE_EIP712_FULL_SUPPORT
|