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iPXE
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IP system statistics. More...
#include <ipstat.h>
Data Fields | |
| unsigned long | in_receives |
| ipSystemStatsInReceives More... | |
| unsigned long | in_octets |
| ipSystemStatsInOctets More... | |
| unsigned long | in_hdr_errors |
| ipSystemStatsInHdrErrors More... | |
| unsigned long | in_addr_errors |
| ipSystemStatsInAddrErrors More... | |
| unsigned long | in_unknown_protos |
| ipSystemStatsInUnknownProtos More... | |
| unsigned long | in_truncated_pkts |
| ipSystemStatsInTruncatedPkts More... | |
| unsigned long | reasm_reqds |
| ipSystemStatsReasmReqds More... | |
| unsigned long | reasm_oks |
| ipSystemStatsReasmOks More... | |
| unsigned long | reasm_fails |
| ipSystemStatsReasmFails More... | |
| unsigned long | in_delivers |
| ipSystemStatsInDelivers More... | |
| unsigned long | out_requests |
| ipSystemStatsOutRequests More... | |
| unsigned long | out_no_routes |
| ipSystemStatsOutNoRoutes More... | |
| unsigned long | out_transmits |
| ipSystemStatsOutTransmits More... | |
| unsigned long | out_octets |
| ipSystemStatsOutOctets More... | |
| unsigned long | in_mcast_pkts |
| ipSystemStatsInMcastPkts More... | |
| unsigned long | out_mcast_pkts |
| ipSystemStatsOutMcastPkts More... | |
| unsigned long | in_bcast_pkts |
| ipSystemStatsInBcastPkts More... | |
| unsigned long | out_bcast_pkts |
| ipSystemStatsOutBcastPkts More... | |
IP system statistics.
Definitions are taken from the RFC4293 section 5 "ipSystemStatsEntry" table.
To minimise code size, we use "unsigned long" as the counter variable type regardless of whether this type is 32-bit or 64-bit. On a 32-bit build (e.g. the standard BIOS build), this means that we omit the "high capacity" 64-bit counters (prefixed with "HC"). This reduces the code size required to maintain the counter values, and avoids the need to support the "%lld" format in vsprintf.c (which would require dragging in the 64-bit division library on a standard 32-bit build). Since total available memory in a 32-bit environment is limited to 4GB, it is unlikely that we will overflow even the 32-bit octet counters under normal operation.
Counters relating to packet forwarding are omitted, since iPXE includes no functionality for acting as a router.
Counters related to output fragmentation are omitted, since iPXE has no support for fragmenting transmitted packets.
The ipSystemStatsInDiscards and ipSystemStatsOutDiscards counters are omitted, since they will always be zero.
Separate octet counters for multicast packets are omitted to save code size.
| unsigned long ip_statistics::in_receives |
| unsigned long ip_statistics::in_octets |
| unsigned long ip_statistics::in_hdr_errors |
| unsigned long ip_statistics::in_addr_errors |
ipSystemStatsInAddrErrors
The number of input IP datagrams discarded because the IP address in their IP header's destination field was not a valid address to be received at this entity. This count includes invalid addresses (e.g., ::0). For entities that are not IP routers and therefore do not forward datagrams, this counter includes datagrams discarded because the destination address was not a local address.
| unsigned long ip_statistics::in_unknown_protos |
ipSystemStatsInUnknownProtos
The number of locally-addressed IP datagrams received successfully but discarded because of an unknown or unsupported protocol.
Definition at line 83 of file ipstat.h.
Referenced by ipstat(), and tcpip_rx().
| unsigned long ip_statistics::in_truncated_pkts |
| unsigned long ip_statistics::reasm_reqds |
ipSystemStatsReasmReqds
The number of IP fragments received that needed to be reassembled at this interface.
Definition at line 95 of file ipstat.h.
Referenced by fragment_reassemble(), and ipstat().
| unsigned long ip_statistics::reasm_oks |
ipSystemStatsReasmOks
The number of IP datagrams successfully reassembled.
Definition at line 100 of file ipstat.h.
Referenced by fragment_reassemble(), and ipstat().
| unsigned long ip_statistics::reasm_fails |
ipSystemStatsReasmFails
The number of failures detected by the IP re-assembly algorithm (for whatever reason: timed out, errors, etc.). Note that this is not necessarily a count of discarded IP fragments since some algorithms (notably the algorithm in RFC 815) can lose track of the number of fragments by combining them as they are received.
Definition at line 110 of file ipstat.h.
Referenced by fragment_expired(), fragment_reassemble(), and ipstat().
| unsigned long ip_statistics::in_delivers |
ipSystemStatsInDelivers
The total number of datagrams successfully delivered to IP user-protocols (including ICMP).
Definition at line 116 of file ipstat.h.
Referenced by ipstat(), and tcpip_rx().
| unsigned long ip_statistics::out_requests |
| unsigned long ip_statistics::out_no_routes |
| unsigned long ip_statistics::out_transmits |
| unsigned long ip_statistics::out_octets |
| unsigned long ip_statistics::in_mcast_pkts |
| unsigned long ip_statistics::out_mcast_pkts |
| unsigned long ip_statistics::in_bcast_pkts |
| unsigned long ip_statistics::out_bcast_pkts |
1.8.15