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-rw-r--r--src/hash.c83
1 files changed, 13 insertions, 70 deletions
diff --git a/src/hash.c b/src/hash.c
index 03fc8df..367376f 100644
--- a/src/hash.c
+++ b/src/hash.c
@@ -1,104 +1,47 @@
-#include "config.h"
+#include <s.h>
#include <assert.h>
-#include <pthread.h>
#include <stdbool.h>
-#include <stddef.h>
-#include <stdint.h>
#include <stdio.h>
-#include <string.h>
#include <siphash.h>
-#include "hash.h"
#include "logerr.h"
#include "random.h"
+#include "hash.h"
-static volatile bool
-INITIALIZED = false;
-static uint8_t
-HASH_KEY[SIPHASHBS_KEY_LENGTH];
+static bool
+SEED_INITIALIZED = false;
-static pthread_mutex_t
-SEED_MUTEX = PTHREAD_MUTEX_INITIALIZER;
+static u8
+HASH_KEY[SIPHASH_KEY_LENGTH];
-static int
-unsafe_init(void) {
+int
+hash_setup(void) {
int rc = -1;
- if (urandom_bytes(SIPHASHBS_KEY_LENGTH, &HASH_KEY)) {
+ if (random_bytes(SIPHASH_KEY_LENGTH, &HASH_KEY)) {
logerr("urandom_bytes()");
goto out;
}
+ SEED_INITIALIZED = true;
rc = 0;
out:
return rc;
}
-static int
-safe_init(void) {
- int rc = -1;
-
- bool lock_acquired = false;
-
- if (INITIALIZED == true) {
- rc = 0;
- goto out;
- }
-
- const int ret1 = pthread_mutex_lock(&SEED_MUTEX);
- if (ret1) {
- logerr("pthread_mutex_lock(): %s", strerror(ret1));
- goto out;
- }
- lock_acquired = true;
-
- if (INITIALIZED == true) {
- rc = 0;
- goto out;
- }
-
- if (unsafe_init()) {
- logerr("unsafe_init()");
- goto out;
- }
-
- INITIALIZED = true;
-
- rc = 0;
-out:
- if (lock_acquired) {
- const int ret2 = pthread_mutex_unlock(&SEED_MUTEX);
- if (ret2) {
- logerr("pthread_mutex_unlock(): %s", strerror(ret2));
- rc = -1;
- }
- }
- return rc;
-}
-
-static void
-ensure_initialized(void) {
- assert((safe_init() == 0) && "Failed to initialized the hash seed");
-}
-
-int
-hash_init(void) {
- return safe_init();
-}
-
void
hash(
const size_t inlen,
const void *const restrict in,
- uint8_t out[HASH_OUTPUT_LENGTH]
+ u8 out[HASH_OUTPUT_LENGTH]
) {
- ensure_initialized();
- siphashbs(HASH_KEY, inlen, in, out);
+ assert(SEED_INITIALIZED == true);
+ siphash(HASH_KEY, inlen, in, out);
}