Merge commit '430be849945688ae107b079db1e216329b1a1f06'

[osmocom-bb.git] / src / shared / libosmocore / src / gsm / gprs_cipher_core.c

diff --git a/src/shared/libosmocore/src/gsm/gprs_cipher_core.c b/src/shared/libosmocore/src/gsm/gprs_cipher_core.c
index 7884be0..b9a22a1 100644 (file)
--- a/src/shared/libosmocore/src/gsm/gprs_cipher_core.c
+++ b/src/shared/libosmocore/src/gsm/gprs_cipher_core.c
@@ -36,7 +36,7 @@ static struct gprs_cipher_impl *selected_ciphers[_GPRS_ALGO_NUM];
 /* register a cipher with the core */
 int gprs_cipher_register(struct gprs_cipher_impl *ciph)
 {
-       if (ciph->algo > ARRAY_SIZE(selected_ciphers))
+       if (ciph->algo >= ARRAY_SIZE(selected_ciphers))
                return -ERANGE;
 
        llist_add_tail(&ciph->list, &gprs_ciphers);
@@ -60,7 +60,7 @@ int gprs_cipher_load(const char *path)
 int gprs_cipher_run(uint8_t *out, uint16_t len, enum gprs_ciph_algo algo,
                    uint64_t kc, uint32_t iv, enum gprs_cipher_direction dir)
 {
-       if (algo > ARRAY_SIZE(selected_ciphers))
+       if (algo >= ARRAY_SIZE(selected_ciphers))
                return -ERANGE;
 
        if (!selected_ciphers[algo])
@@ -75,7 +75,7 @@ int gprs_cipher_run(uint8_t *out, uint16_t len, enum gprs_ciph_algo algo,
 
 int gprs_cipher_supported(enum gprs_ciph_algo algo)
 {
-       if (algo > ARRAY_SIZE(selected_ciphers))
+       if (algo >= ARRAY_SIZE(selected_ciphers))
                return -ERANGE;
 
        if (selected_ciphers[algo])