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

Comments
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 will need access to these
internal TCP/IP variables.
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Iface_Entry
API function API_SNMP_GET - Get internal TCP/IP SNMP variables
typedef struct tag_iface_device
{
unsigned int devIndex; // Internal index number
char devName[14]; // Device name, terminated by zero
unsigned long devIPAddr; // IP address for this interface
unsigned long devNetmask; // Netmask for the route
unsigned long devDestIpAddr; // Remote peer address for PPP
unsigned char PhysAddr[6]; // Physical device address, max. 6 Bytes
int devType; // Type of the device driver:
// 0: unknown,
// 1: Ethernet driver,
// 2: PPP protocol
// 4: SLIP protocol (not supported)
// 5: Internal loopback
int devDHCP; // Interface configured by DHCP? 1:0
int devFlag; // Device status flag
// Bit1 == 1 Device opened
// Bit2 == 1 Device IP config in progress(PPP or DHCP)
// Bit3 == 1 Device open completed
int devMTU; // Max. Transfer Unit
void far * reserved;
} Iface_Entry;
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IfMib
API function GET_IFACE_ENTRIES - Read table of TCP/IP device interfaces
typedef struct tagIfMib // Interface table data
{
long ifIndex; // index of this interface
char ifDescr[32]; // description of interface
long ifType; // network device type
long ifMtu; // maximum transfer unit
unsigned long ifSpeed; // bandwidth in bits/sec
unsigned char ifPhysAddress[11]; // interface's address
unsigned char PhysAddrLen; // length of physAddr: 6
long ifAdminStatus; // desired state of interface, not supported
long ifOperStatus; // current operational status, not supported
//counters
unsigned long devLastChange; // value of sysUpTime when current state entered
unsigned long devInOctets; // number of octets received on interface
unsigned long devInUcastPkts; // number of unicast packets delivered
unsigned long devInMulticastPkts; // number of multicast packets delivered,
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