tls_session.cpp: cleanup

authentification → authentication
chunck → chunk
DTLS
GnuTLS
IPv4
IPv6
MiM attack → MITM attack
MTU
non-reliable → unreliable
non-valid → invalid
OCSP
OK
Renogotiate → Renegotiate
retry → reattempt
shuting → shutting
tried → attempt
try → attempt
URI
x509 → X.509

Change-Id: I5ab67f1fb10b24aa8de79217cba219137de6a88b

include/generic_io.h

@@ -59,7 +59,7 @@ public:
     /// The value is 0 if such information is irrelevant for the session.
     /// If stricly positive, the user must use send() with an input buffer size below or equals
     /// to this value if it want to be sure that the transport sent it in an atomic way.
-    /// Example: in case of non-reliable transport using packet oriented IO,
+    /// Example: in case of unreliable transport using packet oriented IO,
     /// this value gives the maximal size used to send one packet.
     virtual int maxPayload() const = 0;
 

include/tls_session.h

@@ -45,9 +45,9 @@ namespace tls {
 enum class TlsSessionState {
     NONE,
     SETUP,
-    COOKIE, // only used with non-initiator and non-reliable transport
+    COOKIE, // only used with non-initiator and unreliable transport
     HANDSHAKE,
-    MTU_DISCOVERY, // only used with non-reliable transport
+    MTU_DISCOVERY, // only used with unreliable transport
     ESTABLISHED,
     SHUTDOWN
 };