- u int values can be generated: Not fully tested !

Source/charon/encodings/ike_header.c

@@ -45,6 +45,8 @@ encoding_rule_t ike_header_encodings[] = {
 	{ U_INT_4,		offsetof(ike_header_t, maj_version) 		},
  	/* 4 Bit minor version, stored in the field min_version */
 	{ U_INT_4,		offsetof(ike_header_t, min_version) 		},
+	/* 8 Bit for the exchange type */
+	{ U_INT_8,		offsetof(ike_header_t, exchange_type) 	},
  	/* 2 Bit reserved bits, nowhere stored */
 	{ RESERVED_BIT,	0 										}, 
 	{ RESERVED_BIT,	0 										}, 

Source/charon/encodings/ike_header.h

@@ -43,11 +43,11 @@ struct ike_header_s{
 	/**
 	 * SPI of the initiator
 	 */
-	u_int32_t initiator_spi;
+	u_int64_t initiator_spi;
 	/**
 	 * SPI of the responder
 	 */
-	u_int32_t responder_spi;
+	u_int64_t responder_spi;
 	/**
 	 * next payload type
 	 */

Source/charon/generator.c

@@ -81,6 +81,8 @@ struct generator_infos_s {
 	 */
 	status_t (*make_space_available) (generator_infos_t *this,size_t bits);
 	
+	status_t (*write_bytes_to_buffer) (generator_infos_t *this,void * bytes,size_t number_of_bytes);
+	
 	status_t (*write_chunk) (generator_infos_t *this,chunk_t *data);	
 };
 
@@ -113,6 +115,28 @@ static status_t generator_info_make_space_available (generator_infos_t *this, si
 	return SUCCESS;
 }
 
+static status_t generator_info_write_bytes_to_buffer (generator_infos_t *this,void * bytes,size_t number_of_bytes)
+{
+	u_int8_t *read_position = (u_int8_t *) bytes;
+	int i;
+	status_t status;
+	
+	status = this->make_space_available(this,number_of_bytes * 8);
+	
+	if (status != SUCCESS)
+	{
+		return status;
+	}
+	
+	for (i = 0; i < number_of_bytes; i++)
+	{
+		*(this->out_position) = *(read_position);
+		read_position++;
+		this->out_position++;
+	}
+	return status;
+}
+
 static status_t generator_infos_write_chunk (generator_infos_t *this,chunk_t *data)
 {
 	size_t data_length = this->out_position - this->buffer;
@@ -160,6 +184,7 @@ generator_infos_t * generator_infos_create(void *data_struct)
 	this->destroy = generator_infos_destroy;
 	this->make_space_available = generator_info_make_space_available;
 	this->write_chunk = generator_infos_write_chunk;
+	this->write_bytes_to_buffer = generator_info_write_bytes_to_buffer;
 
 	/* allocate memory for buffer */
 	this->buffer = allocator_alloc(GENERATOR_DATA_BUFFER_SIZE);
@@ -226,7 +251,6 @@ struct private_generator_s {
 static status_t generate_u_int_type (private_generator_t *this,encoding_type_t int_type,u_int32_t offset,generator_infos_t *generator_infos)
 {
 	size_t number_of_bits = 0;
-	
 	status_t status;
 	
 
@@ -250,6 +274,11 @@ static status_t generate_u_int_type (private_generator_t *this,encoding_type_t i
 			default:
 			return FAILED;
 	}
+	if (((number_of_bits % 8) == 0) && (generator_infos->current_bit != 0))
+	{
+		/* current bit has to be zero for values greater then 4 bits */
+		return FAILED;
+	}
 	
 	status = generator_infos->make_space_available(generator_infos,number_of_bits);
 	
@@ -257,27 +286,74 @@ static status_t generate_u_int_type (private_generator_t *this,encoding_type_t i
 	{
 		return status;
 	}
-	
+
-	/* process 4 byte integer special */
+	switch (int_type)
-	if (number_of_bits == 4)
 	{
-		if (generator_infos->current_bit == 0)
+			case U_INT_4:
-		{			
+			{
-			*(generator_infos->out_position) = *((u_int8_t *)(generator_infos->data_struct + offset)) << 4;
+				if (generator_infos->current_bit == 0)
-			generator_infos->current_bit = 4;
+				{			
-		}
+					u_int8_t high_val = *((u_int8_t *)(generator_infos->data_struct + offset)) << 4;
-		else if (generator_infos->current_bit == 4)
+					u_int8_t low_val = *(generator_infos->out_position) & 0x0F;
-		{
+						
-			generator_infos->out_position++;
+					*(generator_infos->out_position) = high_val | low_val;
-			generator_infos->current_bit = 0;
+					/* write position is not changed, just bit position is moved */
+					generator_infos->current_bit = 4;
+				}
+				else if (generator_infos->current_bit == 4)
+				{
+					u_int high_val = *(generator_infos->out_position) & 0xF0;
+					u_int low_val = *((u_int8_t *)(generator_infos->data_struct + offset)) & 0x0F;
+					*(generator_infos->out_position) = high_val | low_val;
+					generator_infos->out_position++;
+					generator_infos->current_bit = 0;
+					
+				}
+				else
+				{
+					/* 4 Bit integers must have a 4 bit alignment */
+					return FAILED;
+				};
+				break;
+			}
 			
-		}
+			case U_INT_8:
-		else
+			{
-		{
+				*generator_infos->out_position = *((u_int8_t *)(generator_infos->data_struct + offset));
-			/* 4 Bit integers must have a 4 bit alignment */
+				generator_infos->out_position++;
+				break;
+				
+			}
+			case U_INT_16:
+			{
+				u_int16_t int16_val = htons(*((u_int16_t*)(generator_infos->data_struct + offset)));
+				generator_infos->write_bytes_to_buffer(generator_infos,&int16_val,sizeof(u_int16_t));
+		
+				break;
+			}
+			case U_INT_32:
+			{
+				u_int32_t int32_val = htonl(*((u_int32_t*)(generator_infos->data_struct + offset)));			
+				generator_infos->write_bytes_to_buffer(generator_infos,&int32_val,sizeof(u_int32_t));
+				break;
+			}
+			case U_INT_64:
+			{
+				u_int32_t int32_val_low = htonl(*((u_int32_t*)(generator_infos->data_struct + offset)));
+				u_int32_t int32_val_high = htonl(*((u_int32_t*)(generator_infos->data_struct + offset) + 1));			
+				generator_infos->write_bytes_to_buffer(generator_infos,&int32_val_high,sizeof(u_int32_t));				
+				generator_infos->write_bytes_to_buffer(generator_infos,&int32_val_low,sizeof(u_int32_t));				
+				break;
+			}
+				
+			default:
 			return FAILED;
-		}
+			
 	}
+	
+
+	
+	
 	return SUCCESS;
 }
 
@@ -297,6 +373,7 @@ static status_t generate (private_generator_t *this,void * data_struct,encoding_
 		return OUT_OF_RES;
 	}
 
+
 	for (i = 0; i < encoding_rules_count;i++)
 	{
 		status = SUCCESS;

Source/charon/tests/generator_test.c

@@ -68,7 +68,14 @@ void test_generator_with_header_payload(tester_t *tester)
 	tester->assert_true(tester,(generator != NULL), "generator create check");
 	tester->assert_true(tester,(generator->generate_payload(generator,HEADER,&header_data,&generated_data) == SUCCESS),"generate_payload call check");
 
-	DBG_dump("test:",generated_data.ptr,generated_data.len);
+	int i;
+	u_int8_t *data = generated_data.ptr;
+	
+	for (i = 0; i < generated_data.len;i++)
+	{
+		fprintf(stderr,"%x\n",data[i]);
+	}
+
 	
 	allocator_free_chunk(generated_data);