IPC@CHIP Documentation - SC12 @CHIP-RTOS V1.10

Comments
unsigned long ipReasmOKs; // number of fragments reassembled
unsigned long ipReasmFails; // number of failures in IP reassembly
unsigned long ipFragOKs; // number of datagrams fragmented here
unsigned long ipFragFails; // no. pkts unable to be fragmented here
unsigned long ipFragCreates; // number of IP fragments created here
unsigned long ipRoutingDiscards;
} IpMib;
These structures are only available in @CHIP-RTOS versions which contain the SNMP option. A SNMP agent is not part of
the @CHIP-RTOS. But if a user is able to implement an agent based on the TCP/IP API, they need access to these internal
TCP/IP variables.
Related Topics
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Index page
API function API_SNMP_GET - Get internal TCP/IP SNMP variables
IpUserCallbackInfo
Comments
A structure of this type is passed as an input parameter to an IP user callback handler.
struct IpUserCallbackInfo
{
int size; // Size of this struct
unsigned long srcAddr; // Source IP Address (in network byte order)
unsigned long destAddr; // Destination IP Address (in network byte order))
unsigned int srcPort; // Source Port (in network byte order)
unsigned int destPort; // Destination Port (in network byte order)
unsigned char protocol; // Protocol (see list below)
int fragmented; // 0: it is an unfragmented package, 1: it is a fragment
unsigned int dataLength; // Length of the data in the IP package
// (only available if package is not fragmented!)
void far * dataPtr; // Pointer to the IP data
// (only available if package is not fragmented!)
} IpCallbackUserInfo_t;
Protocol types enumerated by the protocol member are coded as follows:
1 ICMP (Internet Control Management Protocol)
2 IGMP (Internet Group Management Protocol)
6 TCP (Transmission Control Protocol)
17 UDP (User Datagram Protocol)
Note: The IP callback function will be called before defragmenting fragmented IP packages. So if we receive a fragmented
package, the IP callback will be called for every received fragment.
Related Topics
Top of list
Index page
API function IP_USER_CB - Install IP callback function
Packet_Count
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