| /* SPDX-License-Identifier: BSD-2-Clause */ |
| /* |
| * Copyright (c) 2014, STMicroelectronics International N.V. |
| */ |
| #ifndef TEE_MISC_H |
| #define TEE_MISC_H |
| |
| #include <types_ext.h> |
| |
| /* |
| * Macro to derive hex string buffer size from binary buffer size & the |
| * reverse |
| */ |
| #define TEE_B2HS_HSBUF_SIZE(x) ((x) * 2 + 1) |
| #define TEE_HS2B_BBUF_SIZE(x) ((x + 1) >> 1) |
| |
| /* |
| * binary to hex string buffer |
| * Returns the number of data bytes written to the hex string |
| */ |
| uint32_t tee_b2hs(uint8_t *b, uint8_t *hs, uint32_t blen, uint32_t hslen); |
| |
| /* |
| * hex string to binary buffer |
| * Returns the number of data bytes written to the bin buffer |
| */ |
| uint32_t tee_hs2b(uint8_t *hs, uint8_t *b, uint32_t hslen, uint32_t blen); |
| |
| /* |
| * Is buffer 'b' inside/outside/overlapping area 'a'? |
| * |
| * core_is_buffer_inside() - return true if buffer is inside memory area |
| * core_is_buffer_outside() - return true if buffer is outside area |
| * core_is_buffer_intersect() - return true if buffer overlaps area |
| * |
| * Warning: core_is_buffer_inside(x,x,x,x)==false does NOT mean |
| * core_is_buffer_outside(x,x,x,x)==true. |
| * |
| * Arguments use by each of these routines: |
| * @b - buffer start address (handled has an unsigned offset) |
| * @bl - length (in bytes) of the target buffer |
| * @a - memory area start address (handled has an unsigned offset) |
| * @al - memory area length (in byte) |
| */ |
| #define core_is_buffer_inside(b, bl, a, al) \ |
| _core_is_buffer_inside((vaddr_t)(b), (size_t)(bl), \ |
| (vaddr_t)(a), (size_t)(al)) |
| |
| #define core_is_buffer_outside(b, bl, a, al) \ |
| _core_is_buffer_outside((vaddr_t)(b), (size_t)(bl), \ |
| (vaddr_t)(a), (size_t)(al)) |
| |
| #define core_is_buffer_intersect(b, bl, a, al) \ |
| _core_is_buffer_intersect((vaddr_t)(b), (size_t)(bl), \ |
| (vaddr_t)(a), (size_t)(al)) |
| |
| bool _core_is_buffer_inside(vaddr_t b, size_t bl, vaddr_t a, size_t al); |
| bool _core_is_buffer_outside(vaddr_t b, size_t bl, vaddr_t a, size_t al); |
| bool _core_is_buffer_intersect(vaddr_t b, size_t bl, vaddr_t a, size_t al); |
| |
| #endif /* TEE_MISC_H */ |