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-rw-r--r--Makefile3
-rw-r--r--anytun.cpp70
-rw-r--r--authAlgo.cpp2
-rw-r--r--authAlgo.h4
-rw-r--r--buffer.cpp21
-rw-r--r--buffer.h8
-rw-r--r--cypher.cpp15
-rw-r--r--cypher.h2
-rw-r--r--tunDevice.cpp2
9 files changed, 81 insertions, 46 deletions
diff --git a/Makefile b/Makefile
index 9714f79..c84e63f 100644
--- a/Makefile
+++ b/Makefile
@@ -48,9 +48,6 @@ buffer.o: buffer.cpp buffer.h
cypher.o: cypher.cpp cypher.h buffer.h
$(C++) $(CCFLAGS) $< -c
-cypher.o: cypher.cpp cypher.h buffer.h
- $(C++) $(CCFLAGS) $< -c
-
authAlgo.o: authAlgo.cpp authAlgo.h buffer.h
$(C++) $(CCFLAGS) $< -c
diff --git a/anytun.cpp b/anytun.cpp
index f7fb19a..75d311a 100644
--- a/anytun.cpp
+++ b/anytun.cpp
@@ -55,37 +55,47 @@ int main(int argc, char* argv[])
for(unsigned int i=0;i<c.getLength();++i)
c[i] = i;
- TunDevice* dev;
-
- dev = new TunDevice("tun", "192.168.200.1", "192.168.201.1");
- std::cout << "dev created (opened)" << std::endl;
- std::cout << "dev opened - actual name is '" << dev->getActualName() << "'" << std::endl;
- std::cout << "dev type is '" << dev->getType() << "'" << std::endl;
- sleep(10);
- delete dev;
- std::cout << "dev destroyed" << std::endl;
+// TunDevice* dev;
+
+// dev = new TunDevice("tun", "192.168.200.1", "192.168.201.1");
+// std::cout << "dev created (opened)" << std::endl;
+// std::cout << "dev opened - actual name is '" << dev->getActualName() << "'" << std::endl;
+// std::cout << "dev type is '" << dev->getType() << "'" << std::endl;
+
+
+// sleep(10);
- sleep(10);
-
- dev = new TunDevice("tap", "192.168.202.1", "255.255.255.0");
- std::cout << "dev created (opened)" << std::endl;
- std::cout << "dev opened - actual name is '" << dev->getActualName() << "'" << std::endl;
- std::cout << "dev type is '" << dev->getType() << "'" << std::endl;
- sleep(10);
- delete dev;
- std::cout << "dev destroyed" << std::endl;
-
- sleep(10);
-
- dev = new TunDevice("tun17", "192.168.200.1", "192.168.201.1");
- std::cout << "dev created (opened)" << std::endl;
- std::cout << "dev opened - actual name is '" << dev->getActualName() << "'" << std::endl;
- std::cout << "dev type is '" << dev->getType() << "'" << std::endl;
- sleep(10);
- delete dev;
- std::cout << "dev destroyed" << std::endl;
-
- NullAuthAlgo au;
+// Buffer inBuf(2000);
+
+// int32_t len = 0;
+// do
+// {
+// len = dev->read(inBuf);
+// std::cout << "read " << len << " bytes" << std::endl;
+// }
+// while(len >= 0);
+
+// delete dev;
+// std::cout << "dev destroyed" << std::endl;
+
+// dev = new TunDevice("tap", "192.168.202.1", "255.255.255.0");
+// std::cout << "dev created (opened)" << std::endl;
+// std::cout << "dev opened - actual name is '" << dev->getActualName() << "'" << std::endl;
+// std::cout << "dev type is '" << dev->getType() << "'" << std::endl;
+// sleep(10);
+// delete dev;
+// std::cout << "dev destroyed" << std::endl;
+
+// sleep(10);
+
+// dev = new TunDevice("tun17", "192.168.200.1", "192.168.201.1");
+// std::cout << "dev created (opened)" << std::endl;
+// std::cout << "dev opened - actual name is '" << dev->getActualName() << "'" << std::endl;
+// std::cout << "dev type is '" << dev->getType() << "'" << std::endl;
+// sleep(10);
+// delete dev;
+// std::cout << "dev destroyed" << std::endl;
+
return 0;
}
diff --git a/authAlgo.cpp b/authAlgo.cpp
index 90fc4a2..57c9ee6 100644
--- a/authAlgo.cpp
+++ b/authAlgo.cpp
@@ -30,7 +30,7 @@
#include "authAlgo.h"
-auth_tag_t NullAuthAlgo::calc(Buffer& buf)
+auth_tag_t NullAuthAlgo::calc(const Buffer& buf)
{
return 0;
}
diff --git a/authAlgo.h b/authAlgo.h
index 8cf05e5..4177525 100644
--- a/authAlgo.h
+++ b/authAlgo.h
@@ -40,13 +40,13 @@ public:
AuthAlgo() {};
virtual ~AuthAlgo() {};
- virtual auth_tag_t calc(Buffer& buf) = 0;
+ virtual auth_tag_t calc(const Buffer& buf) = 0;
};
class NullAuthAlgo : AuthAlgo
{
public:
- auth_tag_t calc(Buffer& buf);
+ auth_tag_t calc(const Buffer& buf);
};
#endif
diff --git a/buffer.cpp b/buffer.cpp
index 676deae..b1029a6 100644
--- a/buffer.cpp
+++ b/buffer.cpp
@@ -28,10 +28,10 @@
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
+#include <stdexcept>
#include <string>
#include "datatypes.h"
-
#include "buffer.h"
Buffer::Buffer() : buf_(0), length_(0)
@@ -115,7 +115,24 @@ u_int8_t* Buffer::getBuf()
return buf_;
}
-Buffer::operator u_int8_t*( )
+u_int8_t& Buffer::operator[](u_int32_t index)
+{
+ if(index >= length_)
+ throw std::out_of_range("buffer::operator[]");
+
+ return buf_[index];
+}
+
+u_int8_t const& Buffer::operator[](u_int32_t index) const
+{
+ if(index >= length_)
+ throw std::out_of_range("buffer::operator[] const");
+
+ return buf_[index];
+}
+
+Buffer::operator u_int8_t*() // just for write/read tun
{
return buf_;
}
+
diff --git a/buffer.h b/buffer.h
index b8841af..aa279d9 100644
--- a/buffer.h
+++ b/buffer.h
@@ -31,6 +31,8 @@
#ifndef _BUFFER_H_
#define _BUFFER_H_
+class TunDevice;
+
class Buffer
{
public:
@@ -44,13 +46,15 @@ public:
u_int32_t resize(u_int32_t new_length);
u_int32_t getLength() const;
u_int8_t* getBuf();
- operator u_int8_t*( );
+ u_int8_t& operator[](u_int32_t index);
+ u_int8_t const& operator[](u_int32_t index) const;
protected:
+ operator u_int8_t*(); // just for write/read tun
+ friend class TunDevice;
u_int8_t *buf_;
u_int32_t length_;
};
-
#endif
diff --git a/cypher.cpp b/cypher.cpp
index 8711862..58b433f 100644
--- a/cypher.cpp
+++ b/cypher.cpp
@@ -28,6 +28,8 @@
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
+#include <stdexcept>
+
#include "datatypes.h"
#include "cypher.h"
@@ -35,16 +37,19 @@
void Cypher::cypher(Buffer& buf)
{
Buffer stream = getBitStream(buf.getLength());
- calc(buf, stream, buf.getLength());
+ exor(buf, stream);
}
-void Cypher::calc(u_int8_t* buf, u_int8_t* bit_stream, u_int32_t length)
+void Cypher::exor(Buffer& buf, const Buffer& bit_stream)
{
- for(u_int32_t i; i<length; ++i)
- buf[i] ^= bit_stream[i];
+ try
+ {
+ for(u_int32_t i; i<buf.getLength(); ++i)
+ buf[i] ^= bit_stream[i];
+ }
+ catch(std::out_of_range& o) {}
}
-
Buffer NullCypher::getBitStream(u_int32_t length)
{
Buffer buf(length);
diff --git a/cypher.h b/cypher.h
index f1ef8bf..a0ab6e4 100644
--- a/cypher.h
+++ b/cypher.h
@@ -42,7 +42,7 @@ public:
void cypher(Buffer& buf);
protected:
- void calc(u_int8_t* buf, u_int8_t* bit_stream, u_int32_t length);
+ void exor(Buffer& buf, const Buffer& bit_stream);
virtual Buffer getBitStream(u_int32_t length) = 0;
};
diff --git a/tunDevice.cpp b/tunDevice.cpp
index 04fcb9a..bfac2a4 100644
--- a/tunDevice.cpp
+++ b/tunDevice.cpp
@@ -110,6 +110,8 @@ int TunDevice::read(Buffer& buf)
if(!dev_)
return -1;
+ perf_push (PERF_READ_IN_TUN);
+
return read_tun(dev_, buf, buf.getLength());
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-16 11:55:00 +0000