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Added DHCP and BootP constructors from uint8_t buffer. Normalized IP destination and source address getters/setters.

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This commit is contained in:
Matias Fontanini
2011-08-19 10:13:35 -03:00
parent bb3ea10209
commit 3e2168f6fc
17 changed files with 161 additions and 73 deletions
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13
include/bootp.h
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@@ -45,13 +45,24 @@ namespace Tins {
BOOTREPLY = 2
};
/** \brief Creates an instance of BootP.
/**
* \brief Creates an instance of BootP.
*
* This sets the size of the vend field to 64, as the BootP RFC
* states.
*/
BootP();
/**
* \brief Constructor which creates a BootP object from a buffer and adds all identifiable
* PDUs found in the buffer as children of this one.
* \param buffer The buffer from which this PDU will be constructed.
* \param total_sz The total size of the buffer.
* \param vend_field_size The vend field size to allocate.
* Subclasses might use 0 to provide their own interpretation of this field.
*/
BootP(const uint8_t *buffer, uint32_t total_sz, uint32_t vend_field_size = 64);
/** \brief BootP destructor.
*
* This frees the memory allocated to hold the vend field.

9
include/dhcp.h
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@@ -164,6 +164,15 @@ namespace Tins {
*/
DHCP();
/**
* \brief Constructor which creates a DHCP object from a buffer and adds all identifiable
* PDUs found in the buffer as children of this one.
* \param buffer The buffer from which this PDU will be constructed.
* \param total_sz The total size of the buffer.
* Subclasses might use 0 to provide their own interpretation of this field.
*/
DHCP(const uint8_t *buffer, uint32_t total_sz);
/**
* \brief DHCP destructor
*

4
include/ethernetII.h
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@@ -175,7 +175,7 @@ namespace Tins {
* \return The cloned PDU.
* \sa PDU::clone_packet
*/
PDU *clone_packet(uint8_t *ptr, uint32_t total_sz);
PDU *clone_packet(const uint8_t *ptr, uint32_t total_sz);
private:
/**
* Struct that represents the Ethernet II header
@@ -190,7 +190,7 @@ namespace Tins {
*
* \param eth_ptr The pointer to the ethhdr.
*/
EthernetII(ethhdr *eth_ptr);
EthernetII(const ethhdr *eth_ptr);
void write_serialization(uint8_t *buffer, uint32_t total_sz, const PDU *parent);

12
include/ip.h
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@@ -179,12 +179,12 @@ namespace Tins {
*
* \return The source address for this IP PDU.
*/
inline uint32_t source_address() const { return _ip.saddr; }
inline uint32_t src_addr() const { return _ip.saddr; }
/** \brief Getter for the destination address field.
* \return The destination address for this IP PDU.
*/
inline uint32_t dest_address() const { return _ip.daddr; }
inline uint32_t dst_addr() const { return _ip.daddr; }
/* Setters */
@@ -249,28 +249,28 @@ namespace Tins {
*
* \param ip The ip address in dotted string notation.
*/
void source_address(const std::string &ip);
void src_addr(const std::string &ip);
/**
* \brief Setter for the source address field.
*
* \param ip The ip address in integer notation.
*/
void source_address(uint32_t ip);
void src_addr(uint32_t ip);
/**
* \brief Setter for the destination address field.
*
* \param ip The ip address in dotted string notation.
*/
void dest_address(const std::string &ip);
void dst_addr(const std::string &ip);
/**
* \brief Setter for the destination address field.
*
* \param ip The ip address in integer notation.
*/
void dest_address(uint32_t ip);
void dst_addr(uint32_t ip);
/**
* \brief Sets an IP option.

7
include/sniffer.h
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@@ -79,7 +79,7 @@ namespace Tins {
* \return The captured packet, matching the given filter, 0 if an
* error occured(probably compiling the filter).
*/
PDU *next_pdu(const std::string &filter);
PDU *next_pdu(const std::string &filter = "");
/**
* \brief Starts a sniffing loop, using a callback object for every
@@ -88,11 +88,11 @@ namespace Tins {
* Handlers could be user-provided classes which inherit AbstractSnifferHandler,
* or it could be a specific SnifferHandler specialization. This method deletes
* packets after they are handled, therefore the handlers MUST NOT delete them.
* \param filter The filter to use when sniffing.
* \param cback_handler The callback handler object which should process packets.
* \param filter The filter to use when sniffing.
* \param max_packets The maximum amount of packets to sniff. 0 == infinite.
*/
void sniff_loop(const std::string &filter, AbstractSnifferHandler *cback_handler, uint32_t max_packets = 0);
void sniff_loop(AbstractSnifferHandler *cback_handler, const std::string &filter, uint32_t max_packets = 0);
/**
* \brief Stops sniffing loops.
@@ -105,6 +105,7 @@ namespace Tins {
pcap_t *handle;
bpf_u_int32 ip, mask;
bpf_program actual_filter;
};
/**

22
include/udp.h
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@@ -53,16 +53,26 @@ namespace Tins {
*/
UDP(const uint8_t *buffer, uint32_t total_sz);
/** \brief Returns the destination port
*/
/**
* \brief Getter for the destination port.
* \return The datagram's destination port.
*/
inline uint16_t dport() const { return _udp.dport; }
/** \brief Returns the source port
*/
/**
* \brief Getter for the source port.
* \return The datagram's source port.
*/
inline uint16_t sport() const { return _udp.sport; }
/**
* \brief Getter for the length of the datagram.
* \return The length of the datagram.
*/
inline uint16_t length() const { return _udp.len; }
/** \brief Set the destination port.
*
/**
* \brief Set the destination port.
* \param new_dport The new destination port.
*/
void dport(uint16_t new_dport);