pcpp::IPv6RoutingHeader Class Reference
#include <IPv6Extensions.h>
Inheritance diagram for pcpp::IPv6RoutingHeader:
Classes | |
| struct | ipv6_routing_header |
Public Member Functions | |
| IPv6RoutingHeader (uint8_t routingType, uint8_t segmentsLeft, const uint8_t *additionalRoutingData, size_t additionalRoutingDataLen) | |
| ipv6_routing_header * | getRoutingHeader () |
| uint8_t * | getRoutingAdditionalData () |
| size_t | getRoutingAdditionalDataLength () |
| IPv6Address | getRoutingAdditionalDataAsIPv6Address (size_t offset=0) |
 Public Member Functions inherited from pcpp::IPv6Extension | |
| virtual size_t | getExtensionLen () const |
| IPv6ExtensionType | getExtensionType () |
| virtual | ~IPv6Extension () |
Additional Inherited Members | |
| Public Types inherited from pcpp::IPv6Extension | |
| enum | IPv6ExtensionType { IPv6HopByHop = 0, IPv6Routing = 43, IPv6Fragmentation = 44, IPv6AuthenticationHdr = 51, IPv6Destination = 60, IPv6ExtensionUnknown = 255 } |
Detailed Description
Represents IPv6 routing extension header and allows easy access to all of its data
Constructor & Destructor Documentation
◆ IPv6RoutingHeader()
| pcpp::IPv6RoutingHeader::IPv6RoutingHeader | ( | uint8_t | routingType, |
| uint8_t | segmentsLeft, | ||
| const uint8_t * | additionalRoutingData, | ||
| size_t | additionalRoutingDataLen | ||
| ) |
A c'tor for creating a new IPv6 routing extension object not bounded to a packet. Useful for adding new extensions to an IPv6 layer with IPv6Layer::addExtension()
- Parameters
-
[in] routingType Routing type value (will be written to ipv6_routing_header::routingType field) [in] segmentsLeft Segments left value (will be written to ipv6_routing_header::segmentsLeft field) [in] additionalRoutingData A pointer to a buffer containing the additional routing data for this extension. Notice this buffer is read-only and its content isn't modified [in] additionalRoutingDataLen The length of the additional routing data buffer
Member Function Documentation
◆ getRoutingAdditionalData()
| uint8_t* pcpp::IPv6RoutingHeader::getRoutingAdditionalData | ( | ) |
- Returns
- A pointer to the buffer containing the additional routing data for this extension. Notice that any change in this buffer will lead to a change in the extension data
◆ getRoutingAdditionalDataAsIPv6Address()
| IPv6Address pcpp::IPv6RoutingHeader::getRoutingAdditionalDataAsIPv6Address | ( | size_t | offset = 0 | ) |
In many cases the additional routing data is actually IPv6 address(es). This method converts the raw buffer data into an IPv6 address
- Parameters
-
[in] offset An offset in the additional routing buffer pointing to where the IPv6 address begins. In some cases there are multiple IPv6 addresses in the additional routing data buffer so this offset points to where the request IPv6 address begins. Also, even if there is only one IPv6 address in this buffer, sometimes it isn't written in the beginning of the buffer, so the offset points to where the IPv6 address begins. This is an optional parameter and the default offset is 0
- Returns
- The IPv6 address stored in the additional routing data buffer from the offset defined by the user. If offset is out-of-bounds of the extension of doesn't have 16 bytes (== the length of IPv6 address) until the end of the buffer - IPv6Address::Zero is returned
◆ getRoutingAdditionalDataLength()
| size_t pcpp::IPv6RoutingHeader::getRoutingAdditionalDataLength | ( | ) |
- Returns
- The length of the additional routing parameters buffer
◆ getRoutingHeader()
|
inline |
Get a pointer to the fixed part of the routing header. Notice the return pointer points directly to the data, so every change will modify the actual packet data
- Returns
- A pointer to the ipv6_routing_header
