sec: make whole ciphering/integrity engines final

Author: robertfalkenberg

lib/security/ciphering_engine_generic.h

@@ -18,7 +18,7 @@
 namespace srsran {
 namespace security {
 
-class ciphering_engine_generic : public ciphering_engine
+class ciphering_engine_generic final : public ciphering_engine
 {
 public:
   ciphering_engine_generic(sec_128_key         k_128_int_,
@@ -27,7 +27,7 @@ class ciphering_engine_generic : public ciphering_engine
                            ciphering_algorithm cipher_algo_);
   virtual ~ciphering_engine_generic() = default;
 
-  security_result apply_ciphering(byte_buffer buf, size_t offset, uint32_t count) final;
+  security_result apply_ciphering(byte_buffer buf, size_t offset, uint32_t count) override;
 
 private:
   sec_128_key         k_128_enc;

lib/security/ciphering_engine_nea2.h

@@ -19,13 +19,13 @@
 namespace srsran {
 namespace security {
 
-class ciphering_engine_nea2 : public ciphering_engine
+class ciphering_engine_nea2 final : public ciphering_engine
 {
 public:
   ciphering_engine_nea2(sec_128_key k_128_int, uint8_t bearer_id_, security_direction direction_);
   virtual ~ciphering_engine_nea2() = default;
 
-  security_result apply_ciphering(byte_buffer buf, size_t offset, uint32_t count) final;
+  security_result apply_ciphering(byte_buffer buf, size_t offset, uint32_t count) override;
 
 private:
   uint8_t            bearer_id;

lib/security/integrity_engine_generic.h

@@ -18,7 +18,7 @@
 namespace srsran {
 namespace security {
 
-class integrity_engine_generic : public integrity_engine
+class integrity_engine_generic final : public integrity_engine
 {
 public:
   integrity_engine_generic(sec_128_key         k_128_int_,
@@ -27,8 +27,8 @@ class integrity_engine_generic : public integrity_engine
                            integrity_algorithm integ_algo_);
   ~integrity_engine_generic() = default;
 
-  security_result protect_integrity(byte_buffer buf, uint32_t count) final;
-  security_result verify_integrity(byte_buffer buf, uint32_t count) final;
+  security_result protect_integrity(byte_buffer buf, uint32_t count) override;
+  security_result verify_integrity(byte_buffer buf, uint32_t count) override;
 
 private:
   sec_128_key         k_128_int;