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equix: Portability fixes for big endian platforms

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Signed-off-by: Micah Elizabeth Scott <beth@torproject.org>
This commit is contained in:
Micah Elizabeth Scott 2023-03-15 13:34:21 -07:00
parent daa08557ad
commit ae86d98815
2 changed files with 31 additions and 5 deletions
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16
src/ext/equix/hashx/src/hashx.c
View File

@ -42,11 +42,23 @@ static int initialize_program(hashx_ctx* ctx, hashx_program* program,
int hashx_make(hashx_ctx* ctx, const void* seed, size_t size) {
assert(ctx != NULL && ctx != HASHX_NOTSUPP);
assert(seed != NULL || size == 0);
siphash_state keys[2];
uint8_t keys_bytes[2 * sizeof(siphash_state)];
blake2b_state hash_state;
hashx_blake2b_init_param(&hash_state, &hashx_blake2_params);
hashx_blake2b_update(&hash_state, seed, size);
hashx_blake2b_final(&hash_state, &keys, sizeof(keys));
hashx_blake2b_final(&hash_state, keys_bytes, sizeof(keys_bytes));
siphash_state keys[2];
keys[0].v0 = load64(keys_bytes + 0 * sizeof(uint64_t));
keys[0].v1 = load64(keys_bytes + 1 * sizeof(uint64_t));
keys[0].v2 = load64(keys_bytes + 2 * sizeof(uint64_t));
keys[0].v3 = load64(keys_bytes + 3 * sizeof(uint64_t));
keys[1].v0 = load64(keys_bytes + 4 * sizeof(uint64_t));
keys[1].v1 = load64(keys_bytes + 5 * sizeof(uint64_t));
keys[1].v2 = load64(keys_bytes + 6 * sizeof(uint64_t));
keys[1].v3 = load64(keys_bytes + 7 * sizeof(uint64_t));
if (ctx->type & HASHX_COMPILED) {
hashx_program program;
if (!initialize_program(ctx, &program, keys)) {

18
src/ext/equix/src/solver.h
View File

@ -17,12 +17,26 @@ static inline bool tree_cmp1(const equix_idx* left, const equix_idx* right) {
return *left <= *right;
}
static inline uint32_t tree_idx2(const equix_idx* idx) {
return
(uint32_t)idx[1] << 1*16 |
(uint32_t)idx[0] << 0*16;
}
static inline bool tree_cmp2(const equix_idx* left, const equix_idx* right) {
return load32(left) <= load32(right);
return tree_idx2(left) <= tree_idx2(right);
}
static inline uint64_t tree_idx4(const equix_idx* idx) {
return
(uint64_t)idx[3] << 3*16 |
(uint64_t)idx[2] << 2*16 |
(uint64_t)idx[1] << 1*16 |
(uint64_t)idx[0] << 0*16;
}
static inline bool tree_cmp4(const equix_idx* left, const equix_idx* right) {
return load64(left) <= load64(right);
return tree_idx4(left) <= tree_idx4(right);
}
EQUIX_PRIVATE int equix_solver_solve(hashx_ctx* hash_func, solver_heap* heap, equix_solution output[EQUIX_MAX_SOLS]);