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Add ICMP extensions structure class

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Matias Fontanini
2015-12-13 21:49:26 -08:00
parent 8aff1b4afe
commit 187e7b1ca3
5 changed files with 288 additions and 15 deletions
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21
include/tins/utils.h
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@@ -215,17 +215,30 @@ namespace Tins {
*/
std::string to_string(PDU::PDUType pduType);
/** \brief Does the 16 bits sum of all 2 bytes elements between start and end.
/**
* \brief Does the 16 bits sum of all 2 bytes elements between start and end.
*
* This is the checksum used by IP, UDP and TCP. If there's and odd number of
* bytes, the last one is padded and added to the checksum. The checksum is performed
* using network endiannes.
* bytes, the last one is padded and added to the checksum.
* \param start The pointer to the start of the buffer.
* \param end The pointer to the end of the buffer(excluding the last element).
* \return Returns the checksum between start and end(non inclusive).
* \return Returns the checksum between start and end (non inclusive)
* in network endian
*/
uint32_t do_checksum(const uint8_t *start, const uint8_t *end);
/**
* \brief Computes the 16 bit sum of the input buffer.
*
* If there's and odd number of bytes in the buffer, the last one is padded and
* added to the checksum.
* \param start The pointer to the start of the buffer.
* \param end The pointer to the end of the buffer(excluding the last element).
* \return Returns the checksum between start and end (non inclusive)
* in network endian
*/
uint16_t sum_range(const uint8_t *start, const uint8_t *end);
/** \brief Performs the pseudo header checksum used in TCP and UDP PDUs.
*
* \param source_ip The source ip address.