Imported Upstream version 0.3.4

[anytun.git] / src / encryptedPacket.cpp

diff --git a/src/encryptedPacket.cpp b/src/encryptedPacket.cpp
index 46235c5..466378a 100644 (file)
--- a/src/encryptedPacket.cpp
+++ b/src/encryptedPacket.cpp
@@ -11,7 +11,7 @@
  *  tunneling and relaying of packets of any protocol.
  *
  *
- *  Copyright (C) 2007-2009 Othmar Gsenger, Erwin Nindl, 
+ *  Copyright (C) 2007-2009 Othmar Gsenger, Erwin Nindl,
  *                          Christian Pointner <satp@wirdorange.org>
  *
  *  This file is part of Anytun.
@@ -40,184 +40,199 @@
 #include "log.h"
 #include "anytunError.h"
 
-EncryptedPacket::EncryptedPacket(u_int32_t payload_length, u_int32_t auth_tag_length, bool allow_realloc)
+EncryptedPacket::EncryptedPacket(uint32_t payload_length, uint32_t auth_tag_length, bool allow_realloc)
   : Buffer(payload_length + sizeof(struct HeaderStruct), allow_realloc), auth_tag_length_(auth_tag_length)
 {
   header_ = reinterpret_cast<struct HeaderStruct*>(buf_);
   payload_ = buf_ + sizeof(struct HeaderStruct);
   auth_tag_ = NULL;
-  if(header_)
-  {
+  if(header_) {
     header_->seq_nr = 0;
     header_->sender_id = 0;
     header_->mux = 0;
   }
 }
 
-u_int32_t EncryptedPacket::getHeaderLength()
+uint32_t EncryptedPacket::getHeaderLength()
 {
   return sizeof(struct HeaderStruct);
 }
 
 seq_nr_t EncryptedPacket::getSeqNr() const
 {
-  if(header_)
+  if(header_) {
     return SEQ_NR_T_NTOH(header_->seq_nr);
-  
+  }
+
   return 0;
 }
 
 sender_id_t EncryptedPacket::getSenderId() const
 {
-  if(header_)
+  if(header_) {
     return SENDER_ID_T_NTOH(header_->sender_id);
+  }
 
   return 0;
 }
 
 mux_t EncryptedPacket::getMux() const
 {
-  if(header_)
+  if(header_) {
     return MUX_T_NTOH(header_->mux);
+  }
 
   return 0;
 }
 
 void EncryptedPacket::setSeqNr(seq_nr_t seq_nr)
 {
-  if(header_)
+  if(header_) {
     header_->seq_nr = SEQ_NR_T_HTON(seq_nr);
+  }
 }
 
 void EncryptedPacket::setSenderId(sender_id_t sender_id)
 {
-  if(header_)
+  if(header_) {
     header_->sender_id = SENDER_ID_T_HTON(sender_id);
+  }
 }
 
 void EncryptedPacket::setMux(mux_t mux)
 {
-  if(header_)
+  if(header_) {
     header_->mux = MUX_T_HTON(mux);
+  }
 }
 
 void EncryptedPacket::setHeader(seq_nr_t seq_nr, sender_id_t sender_id, mux_t mux)
 {
-  if(!header_)
+  if(!header_) {
     return;
+  }
 
   header_->seq_nr = SEQ_NR_T_HTON(seq_nr);
   header_->sender_id = SENDER_ID_T_HTON(sender_id);
   header_->mux = MUX_T_HTON(mux);
 }
 
-u_int32_t EncryptedPacket::getPayloadLength() const
+uint32_t EncryptedPacket::getPayloadLength() const
 {
-  if(!payload_) 
+  if(!payload_) {
     return 0;
+  }
 
-  if(!auth_tag_)
+  if(!auth_tag_) {
     return (length_ > sizeof(struct HeaderStruct)) ? (length_ - sizeof(struct HeaderStruct)) : 0;
-  
+  }
+
   return (length_ > (sizeof(struct HeaderStruct) + auth_tag_length_)) ? (length_ - sizeof(struct HeaderStruct) - auth_tag_length_) : 0;
 }
 
-void EncryptedPacket::setPayloadLength(u_int32_t payload_length)
+void EncryptedPacket::setPayloadLength(uint32_t payload_length)
 {
   Buffer::setLength(payload_length + sizeof(struct HeaderStruct));
-      // depending on allow_realloc buf_ may point to another address
-      // therefore in this case reinit() gets called by Buffer::setLength()
+  // depending on allow_realloc buf_ may point to another address
+  // therefore in this case reinit() gets called by Buffer::setLength()
 }
 
 void EncryptedPacket::reinit()
 {
   header_ = reinterpret_cast<struct HeaderStruct*>(buf_);
   payload_ = buf_ + sizeof(struct HeaderStruct);
-  
-  if(length_ <= (sizeof(struct HeaderStruct)))
+
+  if(length_ <= (sizeof(struct HeaderStruct))) {
     payload_ = NULL;
-  
+  }
+
   if(length_ < (sizeof(struct HeaderStruct))) {
     header_ = NULL;
-    AnytunError::throwErr() << "encrypted packet can't be initialized, buffer is too small"; 
-  }  
-  
-  if(auth_tag_)
-  {
+    AnytunError::throwErr() << "encrypted packet can't be initialized, buffer is too small";
+  }
+
+  if(auth_tag_) {
     if(length_ < (sizeof(struct HeaderStruct) + auth_tag_length_)) {
       auth_tag_ = NULL;
-      AnytunError::throwErr() << "auth-tag can't be enabled, buffer is too small"; 
+      AnytunError::throwErr() << "auth-tag can't be enabled, buffer is too small";
     }
     auth_tag_ = buf_ + length_ - auth_tag_length_;
-  }  
+  }
 }
 
-u_int8_t* EncryptedPacket::getPayload()
+uint8_t* EncryptedPacket::getPayload()
 {
   return payload_;
 }
 
-u_int8_t* EncryptedPacket::getAuthenticatedPortion()
+uint8_t* EncryptedPacket::getAuthenticatedPortion()
 {
   return buf_;
 }
 
-u_int32_t EncryptedPacket::getAuthenticatedPortionLength()
+uint32_t EncryptedPacket::getAuthenticatedPortionLength()
 {
-  if(!buf_)
+  if(!buf_) {
     return 0;
+  }
 
-  if(!auth_tag_)
+  if(!auth_tag_) {
     return length_;
-  
+  }
+
   return (length_ > auth_tag_length_) ? (length_ - auth_tag_length_) : 0;
 }
 
 void EncryptedPacket::withAuthTag(bool b)
 {
-  if((b && auth_tag_) || (!b && !auth_tag_))
+  if((b && auth_tag_) || (!b && !auth_tag_)) {
     return;
-  
-  if(b)
-  {
-    if(length_ < (sizeof(struct HeaderStruct) + auth_tag_length_))
+  }
+
+  if(b) {
+    if(length_ < (sizeof(struct HeaderStruct) + auth_tag_length_)) {
       AnytunError::throwErr() << "auth-tag can't be enabled, buffer is too small";
-    
+    }
+
     auth_tag_ = buf_ + length_ - auth_tag_length_;
-  }
-  else
+  } else {
     auth_tag_ = NULL;
+  }
 }
 
 void EncryptedPacket::addAuthTag()
 {
-  if(auth_tag_)
+  if(auth_tag_) {
     return;
+  }
 
   auth_tag_ = buf_; // will be set to the correct value @ reinit
   setLength(length_ + auth_tag_length_);
-  if(auth_tag_ == buf_) // reinit was not called by setLength
+  if(auth_tag_ == buf_) { // reinit was not called by setLength
     reinit();
+  }
 }
 
 void EncryptedPacket::removeAuthTag()
 {
-  if(!auth_tag_)
+  if(!auth_tag_) {
     return;
+  }
 
   auth_tag_ = NULL;
   setLength(length_ - auth_tag_length_);
 }
 
-u_int8_t* EncryptedPacket::getAuthTag()
+uint8_t* EncryptedPacket::getAuthTag()
 {
   return auth_tag_;
 }
 
-u_int32_t EncryptedPacket::getAuthTagLength()
+uint32_t EncryptedPacket::getAuthTagLength()
 {
-  if(auth_tag_)
+  if(auth_tag_) {
     return auth_tag_length_;
+  }
 
   return 0;
 }