gsm/a5: Add const qualifier on the key

Signed-off-by: Sylvain Munaut <tnt@246tNt.com>

2 files changed, 6 insertions, 6 deletions

diff --git a/include/osmocom/gsm/a5.h b/include/osmocom/gsm/a5.h
index 2c630e5f..55ce24dc 100644
--- a/include/osmocom/gsm/a5.h
+++ b/include/osmocom/gsm/a5.h
@@ -42,8 +42,8 @@ osmo_a5_fn_count(uint32_t fn)
 	 *  - fn is the _real_ GSM frame number.
 	 *    (converted internally to fn_count)
 	 */
-void osmo_a5(int n, uint8_t *key, uint32_t fn, ubit_t *dl, ubit_t *ul);
-void osmo_a5_1(uint8_t *key, uint32_t fn, ubit_t *dl, ubit_t *ul);
-void osmo_a5_2(uint8_t *key, uint32_t fn, ubit_t *dl, ubit_t *ul);
+void osmo_a5(int n, const uint8_t *key, uint32_t fn, ubit_t *dl, ubit_t *ul);
+void osmo_a5_1(const uint8_t *key, uint32_t fn, ubit_t *dl, ubit_t *ul);
+void osmo_a5_2(const uint8_t *key, uint32_t fn, ubit_t *dl, ubit_t *ul);
 
 #endif /* __OSMO_A5_H__ */
diff --git a/src/gsm/a5.c b/src/gsm/a5.c
index d3f2b2c3..fe341a6a 100644
--- a/src/gsm/a5.c
+++ b/src/gsm/a5.c
@@ -31,7 +31,7 @@
 #include <osmocom/gsm/a5.h>
 
 void
-osmo_a5(int n, uint8_t *key, uint32_t fn, ubit_t *dl, ubit_t *ul)
+osmo_a5(int n, const uint8_t *key, uint32_t fn, ubit_t *dl, ubit_t *ul)
 {
 	switch (n)
 	{
@@ -138,7 +138,7 @@ _a5_1_get_output(uint32_t r[])
 }
 
 void
-osmo_a5_1(uint8_t *key, uint32_t fn, ubit_t *dl, ubit_t *ul)
+osmo_a5_1(const uint8_t *key, uint32_t fn, ubit_t *dl, ubit_t *ul)
 {
 	uint32_t r[3] = {0, 0, 0};
 	uint32_t fn_count;
@@ -244,7 +244,7 @@ _a5_2_get_output(uint32_t r[], uint8_t *db)
 }
 
 void
-osmo_a5_2(uint8_t *key, uint32_t fn, ubit_t *dl, ubit_t *ul)
+osmo_a5_2(const uint8_t *key, uint32_t fn, ubit_t *dl, ubit_t *ul)
 {
 	uint32_t r[4] = {0, 0, 0, 0};
 	uint32_t fn_count;