Release 4.8 net/ipv4/proc.c

/*
 * INET         An implementation of the TCP/IP protocol suite for the LINUX
 *              operating system.  INET is implemented using the  BSD Socket
 *              interface as the means of communication with the user level.
 *
 *              This file implements the various access functions for the
 *              PROC file system.  It is mainly used for debugging and
 *              statistics.
 *
 * Authors:     Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
 *              Gerald J. Heim, <heim@peanuts.informatik.uni-tuebingen.de>
 *              Fred Baumgarten, <dc6iq@insu1.etec.uni-karlsruhe.de>
 *              Erik Schoenfelder, <schoenfr@ibr.cs.tu-bs.de>
 *
 * Fixes:
 *              Alan Cox        :       UDP sockets show the rxqueue/txqueue
 *                                      using hint flag for the netinfo.
 *      Pauline Middelink       :       identd support
 *              Alan Cox        :       Make /proc safer.
 *      Erik Schoenfelder       :       /proc/net/snmp
 *              Alan Cox        :       Handle dead sockets properly.
 *      Gerhard Koerting        :       Show both timers
 *              Alan Cox        :       Allow inode to be NULL (kernel socket)
 *      Andi Kleen              :       Add support for open_requests and
 *                                      split functions for more readibility.
 *      Andi Kleen              :       Add support for /proc/net/netstat
 *      Arnaldo C. Melo         :       Convert to seq_file
 *
 *              This program is free software; you can redistribute it and/or
 *              modify it under the terms of the GNU General Public License
 *              as published by the Free Software Foundation; either version
 *              2 of the License, or (at your option) any later version.
 */
#include <linux/types.h>
#include <net/net_namespace.h>
#include <net/icmp.h>
#include <net/protocol.h>
#include <net/tcp.h>
#include <net/udp.h>
#include <net/udplite.h>
#include <linux/bottom_half.h>
#include <linux/inetdevice.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <linux/export.h>
#include <net/sock.h>
#include <net/raw.h>

/*
 *      Report socket allocation statistics [mea@utu.fi]
 */


static int sockstat_seq_show(struct seq_file *seq, void *v)
{
	struct net *net = seq->private;
	unsigned int frag_mem;
	int orphans, sockets;

	local_bh_disable();
	orphans = percpu_counter_sum_positive(&tcp_orphan_count);
	sockets = proto_sockets_allocated_sum_positive(&tcp_prot);
	local_bh_enable();

	socket_seq_show(seq);
	seq_printf(seq, "TCP: inuse %d orphan %d tw %d alloc %d mem %ld\n",
		   sock_prot_inuse_get(net, &tcp_prot), orphans,
		   atomic_read(&tcp_death_row.tw_count), sockets,
		   proto_memory_allocated(&tcp_prot));
	seq_printf(seq, "UDP: inuse %d mem %ld\n",
		   sock_prot_inuse_get(net, &udp_prot),
		   proto_memory_allocated(&udp_prot));
	seq_printf(seq, "UDPLITE: inuse %d\n",
		   sock_prot_inuse_get(net, &udplite_prot));
	seq_printf(seq, "RAW: inuse %d\n",
		   sock_prot_inuse_get(net, &raw_prot));
	frag_mem = ip_frag_mem(net);
	seq_printf(seq,  "FRAG: inuse %u memory %u\n", !!frag_mem, frag_mem);
	return 0;
}

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6
31.58%
herbert xu
herbert xu
25
14.97%
1
5.26%
arnaldo carvalho de melo
arnaldo carvalho de melo
21
12.57%
2
10.53%
pavel emelianov
pavel emelianov
21
12.57%
2
10.53%
florian westphal
florian westphal
16
9.58%
1
5.26%
gerrit renker
gerrit renker
11
6.59%
1
5.26%
eric dumazet
eric dumazet
10
5.99%
3
15.79%
glauber costa
glauber costa
6
3.59%
1
5.26%
hideo aoki
hideo aoki
4
2.40%
1
5.26%
thomas gleixner
thomas gleixner
2
1.20%
1
5.26%
Total
167
100.00%
19
100.00%



static int sockstat_seq_open(struct inode *inode, struct file *file)
{
	return single_open_net(inode, file, sockstat_seq_show);
}

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arnaldo carvalho de melo
arnaldo carvalho de melo
18
69.23%
1
33.33%
pavel emelianov
pavel emelianov
8
30.77%
2
66.67%
Total
26
100.00%
3
100.00%


static const struct file_operations sockstat_seq_fops = {
	.owner	 = THIS_MODULE,
	.open	 = sockstat_seq_open,
	.read	 = seq_read,
	.llseek	 = seq_lseek,
	.release = single_release_net,
};

/* snmp items */

static const struct snmp_mib snmp4_ipstats_list[] = {
	SNMP_MIB_ITEM("InReceives", IPSTATS_MIB_INPKTS),
	SNMP_MIB_ITEM("InHdrErrors", IPSTATS_MIB_INHDRERRORS),
	SNMP_MIB_ITEM("InAddrErrors", IPSTATS_MIB_INADDRERRORS),
	SNMP_MIB_ITEM("ForwDatagrams", IPSTATS_MIB_OUTFORWDATAGRAMS),
	SNMP_MIB_ITEM("InUnknownProtos", IPSTATS_MIB_INUNKNOWNPROTOS),
	SNMP_MIB_ITEM("InDiscards", IPSTATS_MIB_INDISCARDS),
	SNMP_MIB_ITEM("InDelivers", IPSTATS_MIB_INDELIVERS),
	SNMP_MIB_ITEM("OutRequests", IPSTATS_MIB_OUTPKTS),
	SNMP_MIB_ITEM("OutDiscards", IPSTATS_MIB_OUTDISCARDS),
	SNMP_MIB_ITEM("OutNoRoutes", IPSTATS_MIB_OUTNOROUTES),
	SNMP_MIB_ITEM("ReasmTimeout", IPSTATS_MIB_REASMTIMEOUT),
	SNMP_MIB_ITEM("ReasmReqds", IPSTATS_MIB_REASMREQDS),
	SNMP_MIB_ITEM("ReasmOKs", IPSTATS_MIB_REASMOKS),
	SNMP_MIB_ITEM("ReasmFails", IPSTATS_MIB_REASMFAILS),
	SNMP_MIB_ITEM("FragOKs", IPSTATS_MIB_FRAGOKS),
	SNMP_MIB_ITEM("FragFails", IPSTATS_MIB_FRAGFAILS),
	SNMP_MIB_ITEM("FragCreates", IPSTATS_MIB_FRAGCREATES),
	SNMP_MIB_SENTINEL
};

/* Following items are displayed in /proc/net/netstat */

static const struct snmp_mib snmp4_ipextstats_list[] = {
	SNMP_MIB_ITEM("InNoRoutes", IPSTATS_MIB_INNOROUTES),
	SNMP_MIB_ITEM("InTruncatedPkts", IPSTATS_MIB_INTRUNCATEDPKTS),
	SNMP_MIB_ITEM("InMcastPkts", IPSTATS_MIB_INMCASTPKTS),
	SNMP_MIB_ITEM("OutMcastPkts", IPSTATS_MIB_OUTMCASTPKTS),
	SNMP_MIB_ITEM("InBcastPkts", IPSTATS_MIB_INBCASTPKTS),
	SNMP_MIB_ITEM("OutBcastPkts", IPSTATS_MIB_OUTBCASTPKTS),
	SNMP_MIB_ITEM("InOctets", IPSTATS_MIB_INOCTETS),
	SNMP_MIB_ITEM("OutOctets", IPSTATS_MIB_OUTOCTETS),
	SNMP_MIB_ITEM("InMcastOctets", IPSTATS_MIB_INMCASTOCTETS),
	SNMP_MIB_ITEM("OutMcastOctets", IPSTATS_MIB_OUTMCASTOCTETS),
	SNMP_MIB_ITEM("InBcastOctets", IPSTATS_MIB_INBCASTOCTETS),
	SNMP_MIB_ITEM("OutBcastOctets", IPSTATS_MIB_OUTBCASTOCTETS),
	/* Non RFC4293 fields */
	SNMP_MIB_ITEM("InCsumErrors", IPSTATS_MIB_CSUMERRORS),
	SNMP_MIB_ITEM("InNoECTPkts", IPSTATS_MIB_NOECTPKTS),
	SNMP_MIB_ITEM("InECT1Pkts", IPSTATS_MIB_ECT1PKTS),
	SNMP_MIB_ITEM("InECT0Pkts", IPSTATS_MIB_ECT0PKTS),
	SNMP_MIB_ITEM("InCEPkts", IPSTATS_MIB_CEPKTS),
	SNMP_MIB_SENTINEL
};

static const struct {
	
const char *name;
	
int index;
} 
icmpmibmap[] = {
	{ "DestUnreachs", ICMP_DEST_UNREACH },
	{ "TimeExcds", ICMP_TIME_EXCEEDED },
	{ "ParmProbs", ICMP_PARAMETERPROB },
	{ "SrcQuenchs", ICMP_SOURCE_QUENCH },
	{ "Redirects", ICMP_REDIRECT },
	{ "Echos", ICMP_ECHO },
	{ "EchoReps", ICMP_ECHOREPLY },
	{ "Timestamps", ICMP_TIMESTAMP },
	{ "TimestampReps", ICMP_TIMESTAMPREPLY },
	{ "AddrMasks", ICMP_ADDRESS },
	{ "AddrMaskReps", ICMP_ADDRESSREPLY },
	{ NULL, 0 }
};



static const struct snmp_mib snmp4_tcp_list[] = {
	SNMP_MIB_ITEM("RtoAlgorithm", TCP_MIB_RTOALGORITHM),
	SNMP_MIB_ITEM("RtoMin", TCP_MIB_RTOMIN),
	SNMP_MIB_ITEM("RtoMax", TCP_MIB_RTOMAX),
	SNMP_MIB_ITEM("MaxConn", TCP_MIB_MAXCONN),
	SNMP_MIB_ITEM("ActiveOpens", TCP_MIB_ACTIVEOPENS),
	SNMP_MIB_ITEM("PassiveOpens", TCP_MIB_PASSIVEOPENS),
	SNMP_MIB_ITEM("AttemptFails", TCP_MIB_ATTEMPTFAILS),
	SNMP_MIB_ITEM("EstabResets", TCP_MIB_ESTABRESETS),
	SNMP_MIB_ITEM("CurrEstab", TCP_MIB_CURRESTAB),
	SNMP_MIB_ITEM("InSegs", TCP_MIB_INSEGS),
	SNMP_MIB_ITEM("OutSegs", TCP_MIB_OUTSEGS),
	SNMP_MIB_ITEM("RetransSegs", TCP_MIB_RETRANSSEGS),
	SNMP_MIB_ITEM("InErrs", TCP_MIB_INERRS),
	SNMP_MIB_ITEM("OutRsts", TCP_MIB_OUTRSTS),
	SNMP_MIB_ITEM("InCsumErrors", TCP_MIB_CSUMERRORS),
	SNMP_MIB_SENTINEL
};


static const struct snmp_mib snmp4_udp_list[] = {
	SNMP_MIB_ITEM("InDatagrams", UDP_MIB_INDATAGRAMS),
	SNMP_MIB_ITEM("NoPorts", UDP_MIB_NOPORTS),
	SNMP_MIB_ITEM("InErrors", UDP_MIB_INERRORS),
	SNMP_MIB_ITEM("OutDatagrams", UDP_MIB_OUTDATAGRAMS),
	SNMP_MIB_ITEM("RcvbufErrors", UDP_MIB_RCVBUFERRORS),
	SNMP_MIB_ITEM("SndbufErrors", UDP_MIB_SNDBUFERRORS),
	SNMP_MIB_ITEM("InCsumErrors", UDP_MIB_CSUMERRORS),
	SNMP_MIB_ITEM("IgnoredMulti", UDP_MIB_IGNOREDMULTI),
	SNMP_MIB_SENTINEL
};


static const struct snmp_mib snmp4_net_list[] = {
	SNMP_MIB_ITEM("SyncookiesSent", LINUX_MIB_SYNCOOKIESSENT),
	SNMP_MIB_ITEM("SyncookiesRecv", LINUX_MIB_SYNCOOKIESRECV),
	SNMP_MIB_ITEM("SyncookiesFailed", LINUX_MIB_SYNCOOKIESFAILED),
	SNMP_MIB_ITEM("EmbryonicRsts", LINUX_MIB_EMBRYONICRSTS),
	SNMP_MIB_ITEM("PruneCalled", LINUX_MIB_PRUNECALLED),
	SNMP_MIB_ITEM("RcvPruned", LINUX_MIB_RCVPRUNED),
	SNMP_MIB_ITEM("OfoPruned", LINUX_MIB_OFOPRUNED),
	SNMP_MIB_ITEM("OutOfWindowIcmps", LINUX_MIB_OUTOFWINDOWICMPS),
	SNMP_MIB_ITEM("LockDroppedIcmps", LINUX_MIB_LOCKDROPPEDICMPS),
	SNMP_MIB_ITEM("ArpFilter", LINUX_MIB_ARPFILTER),
	SNMP_MIB_ITEM("TW", LINUX_MIB_TIMEWAITED),
	SNMP_MIB_ITEM("TWRecycled", LINUX_MIB_TIMEWAITRECYCLED),
	SNMP_MIB_ITEM("TWKilled", LINUX_MIB_TIMEWAITKILLED),
	SNMP_MIB_ITEM("PAWSPassive", LINUX_MIB_PAWSPASSIVEREJECTED),
	SNMP_MIB_ITEM("PAWSActive", LINUX_MIB_PAWSACTIVEREJECTED),
	SNMP_MIB_ITEM("PAWSEstab", LINUX_MIB_PAWSESTABREJECTED),
	SNMP_MIB_ITEM("DelayedACKs", LINUX_MIB_DELAYEDACKS),
	SNMP_MIB_ITEM("DelayedACKLocked", LINUX_MIB_DELAYEDACKLOCKED),
	SNMP_MIB_ITEM("DelayedACKLost", LINUX_MIB_DELAYEDACKLOST),
	SNMP_MIB_ITEM("ListenOverflows", LINUX_MIB_LISTENOVERFLOWS),
	SNMP_MIB_ITEM("ListenDrops", LINUX_MIB_LISTENDROPS),
	SNMP_MIB_ITEM("TCPPrequeued", LINUX_MIB_TCPPREQUEUED),
	SNMP_MIB_ITEM("TCPDirectCopyFromBacklog", LINUX_MIB_TCPDIRECTCOPYFROMBACKLOG),
	SNMP_MIB_ITEM("TCPDirectCopyFromPrequeue", LINUX_MIB_TCPDIRECTCOPYFROMPREQUEUE),
	SNMP_MIB_ITEM("TCPPrequeueDropped", LINUX_MIB_TCPPREQUEUEDROPPED),
	SNMP_MIB_ITEM("TCPHPHits", LINUX_MIB_TCPHPHITS),
	SNMP_MIB_ITEM("TCPHPHitsToUser", LINUX_MIB_TCPHPHITSTOUSER),
	SNMP_MIB_ITEM("TCPPureAcks", LINUX_MIB_TCPPUREACKS),
	SNMP_MIB_ITEM("TCPHPAcks", LINUX_MIB_TCPHPACKS),
	SNMP_MIB_ITEM("TCPRenoRecovery", LINUX_MIB_TCPRENORECOVERY),
	SNMP_MIB_ITEM("TCPSackRecovery", LINUX_MIB_TCPSACKRECOVERY),
	SNMP_MIB_ITEM("TCPSACKReneging", LINUX_MIB_TCPSACKRENEGING),
	SNMP_MIB_ITEM("TCPFACKReorder", LINUX_MIB_TCPFACKREORDER),
	SNMP_MIB_ITEM("TCPSACKReorder", LINUX_MIB_TCPSACKREORDER),
	SNMP_MIB_ITEM("TCPRenoReorder", LINUX_MIB_TCPRENOREORDER),
	SNMP_MIB_ITEM("TCPTSReorder", LINUX_MIB_TCPTSREORDER),
	SNMP_MIB_ITEM("TCPFullUndo", LINUX_MIB_TCPFULLUNDO),
	SNMP_MIB_ITEM("TCPPartialUndo", LINUX_MIB_TCPPARTIALUNDO),
	SNMP_MIB_ITEM("TCPDSACKUndo", LINUX_MIB_TCPDSACKUNDO),
	SNMP_MIB_ITEM("TCPLossUndo", LINUX_MIB_TCPLOSSUNDO),
	SNMP_MIB_ITEM("TCPLostRetransmit", LINUX_MIB_TCPLOSTRETRANSMIT),
	SNMP_MIB_ITEM("TCPRenoFailures", LINUX_MIB_TCPRENOFAILURES),
	SNMP_MIB_ITEM("TCPSackFailures", LINUX_MIB_TCPSACKFAILURES),
	SNMP_MIB_ITEM("TCPLossFailures", LINUX_MIB_TCPLOSSFAILURES),
	SNMP_MIB_ITEM("TCPFastRetrans", LINUX_MIB_TCPFASTRETRANS),
	SNMP_MIB_ITEM("TCPForwardRetrans", LINUX_MIB_TCPFORWARDRETRANS),
	SNMP_MIB_ITEM("TCPSlowStartRetrans", LINUX_MIB_TCPSLOWSTARTRETRANS),
	SNMP_MIB_ITEM("TCPTimeouts", LINUX_MIB_TCPTIMEOUTS),
	SNMP_MIB_ITEM("TCPLossProbes", LINUX_MIB_TCPLOSSPROBES),
	SNMP_MIB_ITEM("TCPLossProbeRecovery", LINUX_MIB_TCPLOSSPROBERECOVERY),
	SNMP_MIB_ITEM("TCPRenoRecoveryFail", LINUX_MIB_TCPRENORECOVERYFAIL),
	SNMP_MIB_ITEM("TCPSackRecoveryFail", LINUX_MIB_TCPSACKRECOVERYFAIL),
	SNMP_MIB_ITEM("TCPSchedulerFailed", LINUX_MIB_TCPSCHEDULERFAILED),
	SNMP_MIB_ITEM("TCPRcvCollapsed", LINUX_MIB_TCPRCVCOLLAPSED),
	SNMP_MIB_ITEM("TCPDSACKOldSent", LINUX_MIB_TCPDSACKOLDSENT),
	SNMP_MIB_ITEM("TCPDSACKOfoSent", LINUX_MIB_TCPDSACKOFOSENT),
	SNMP_MIB_ITEM("TCPDSACKRecv", LINUX_MIB_TCPDSACKRECV),
	SNMP_MIB_ITEM("TCPDSACKOfoRecv", LINUX_MIB_TCPDSACKOFORECV),
	SNMP_MIB_ITEM("TCPAbortOnData", LINUX_MIB_TCPABORTONDATA),
	SNMP_MIB_ITEM("TCPAbortOnClose", LINUX_MIB_TCPABORTONCLOSE),
	SNMP_MIB_ITEM("TCPAbortOnMemory", LINUX_MIB_TCPABORTONMEMORY),
	SNMP_MIB_ITEM("TCPAbortOnTimeout", LINUX_MIB_TCPABORTONTIMEOUT),
	SNMP_MIB_ITEM("TCPAbortOnLinger", LINUX_MIB_TCPABORTONLINGER),
	SNMP_MIB_ITEM("TCPAbortFailed", LINUX_MIB_TCPABORTFAILED),
	SNMP_MIB_ITEM("TCPMemoryPressures", LINUX_MIB_TCPMEMORYPRESSURES),
	SNMP_MIB_ITEM("TCPSACKDiscard", LINUX_MIB_TCPSACKDISCARD),
	SNMP_MIB_ITEM("TCPDSACKIgnoredOld", LINUX_MIB_TCPDSACKIGNOREDOLD),
	SNMP_MIB_ITEM("TCPDSACKIgnoredNoUndo", LINUX_MIB_TCPDSACKIGNOREDNOUNDO),
	SNMP_MIB_ITEM("TCPSpuriousRTOs", LINUX_MIB_TCPSPURIOUSRTOS),
	SNMP_MIB_ITEM("TCPMD5NotFound", LINUX_MIB_TCPMD5NOTFOUND),
	SNMP_MIB_ITEM("TCPMD5Unexpected", LINUX_MIB_TCPMD5UNEXPECTED),
	SNMP_MIB_ITEM("TCPSackShifted", LINUX_MIB_SACKSHIFTED),
	SNMP_MIB_ITEM("TCPSackMerged", LINUX_MIB_SACKMERGED),
	SNMP_MIB_ITEM("TCPSackShiftFallback", LINUX_MIB_SACKSHIFTFALLBACK),
	SNMP_MIB_ITEM("TCPBacklogDrop", LINUX_MIB_TCPBACKLOGDROP),
	SNMP_MIB_ITEM("TCPMinTTLDrop", LINUX_MIB_TCPMINTTLDROP),
	SNMP_MIB_ITEM("TCPDeferAcceptDrop", LINUX_MIB_TCPDEFERACCEPTDROP),
	SNMP_MIB_ITEM("IPReversePathFilter", LINUX_MIB_IPRPFILTER),
	SNMP_MIB_ITEM("TCPTimeWaitOverflow", LINUX_MIB_TCPTIMEWAITOVERFLOW),
	SNMP_MIB_ITEM("TCPReqQFullDoCookies", LINUX_MIB_TCPREQQFULLDOCOOKIES),
	SNMP_MIB_ITEM("TCPReqQFullDrop", LINUX_MIB_TCPREQQFULLDROP),
	SNMP_MIB_ITEM("TCPRetransFail", LINUX_MIB_TCPRETRANSFAIL),
	SNMP_MIB_ITEM("TCPRcvCoalesce", LINUX_MIB_TCPRCVCOALESCE),
	SNMP_MIB_ITEM("TCPOFOQueue", LINUX_MIB_TCPOFOQUEUE),
	SNMP_MIB_ITEM("TCPOFODrop", LINUX_MIB_TCPOFODROP),
	SNMP_MIB_ITEM("TCPOFOMerge", LINUX_MIB_TCPOFOMERGE),
	SNMP_MIB_ITEM("TCPChallengeACK", LINUX_MIB_TCPCHALLENGEACK),
	SNMP_MIB_ITEM("TCPSYNChallenge", LINUX_MIB_TCPSYNCHALLENGE),
	SNMP_MIB_ITEM("TCPFastOpenActive", LINUX_MIB_TCPFASTOPENACTIVE),
	SNMP_MIB_ITEM("TCPFastOpenActiveFail", LINUX_MIB_TCPFASTOPENACTIVEFAIL),
	SNMP_MIB_ITEM("TCPFastOpenPassive", LINUX_MIB_TCPFASTOPENPASSIVE),
	SNMP_MIB_ITEM("TCPFastOpenPassiveFail", LINUX_MIB_TCPFASTOPENPASSIVEFAIL),
	SNMP_MIB_ITEM("TCPFastOpenListenOverflow", LINUX_MIB_TCPFASTOPENLISTENOVERFLOW),
	SNMP_MIB_ITEM("TCPFastOpenCookieReqd", LINUX_MIB_TCPFASTOPENCOOKIEREQD),
	SNMP_MIB_ITEM("TCPSpuriousRtxHostQueues", LINUX_MIB_TCPSPURIOUS_RTX_HOSTQUEUES),
	SNMP_MIB_ITEM("BusyPollRxPackets", LINUX_MIB_BUSYPOLLRXPACKETS),
	SNMP_MIB_ITEM("TCPAutoCorking", LINUX_MIB_TCPAUTOCORKING),
	SNMP_MIB_ITEM("TCPFromZeroWindowAdv", LINUX_MIB_TCPFROMZEROWINDOWADV),
	SNMP_MIB_ITEM("TCPToZeroWindowAdv", LINUX_MIB_TCPTOZEROWINDOWADV),
	SNMP_MIB_ITEM("TCPWantZeroWindowAdv", LINUX_MIB_TCPWANTZEROWINDOWADV),
	SNMP_MIB_ITEM("TCPSynRetrans", LINUX_MIB_TCPSYNRETRANS),
	SNMP_MIB_ITEM("TCPOrigDataSent", LINUX_MIB_TCPORIGDATASENT),
	SNMP_MIB_ITEM("TCPHystartTrainDetect", LINUX_MIB_TCPHYSTARTTRAINDETECT),
	SNMP_MIB_ITEM("TCPHystartTrainCwnd", LINUX_MIB_TCPHYSTARTTRAINCWND),
	SNMP_MIB_ITEM("TCPHystartDelayDetect", LINUX_MIB_TCPHYSTARTDELAYDETECT),
	SNMP_MIB_ITEM("TCPHystartDelayCwnd", LINUX_MIB_TCPHYSTARTDELAYCWND),
	SNMP_MIB_ITEM("TCPACKSkippedSynRecv", LINUX_MIB_TCPACKSKIPPEDSYNRECV),
	SNMP_MIB_ITEM("TCPACKSkippedPAWS", LINUX_MIB_TCPACKSKIPPEDPAWS),
	SNMP_MIB_ITEM("TCPACKSkippedSeq", LINUX_MIB_TCPACKSKIPPEDSEQ),
	SNMP_MIB_ITEM("TCPACKSkippedFinWait2", LINUX_MIB_TCPACKSKIPPEDFINWAIT2),
	SNMP_MIB_ITEM("TCPACKSkippedTimeWait", LINUX_MIB_TCPACKSKIPPEDTIMEWAIT),
	SNMP_MIB_ITEM("TCPACKSkippedChallenge", LINUX_MIB_TCPACKSKIPPEDCHALLENGE),
	SNMP_MIB_ITEM("TCPWinProbe", LINUX_MIB_TCPWINPROBE),
	SNMP_MIB_ITEM("TCPKeepAlive", LINUX_MIB_TCPKEEPALIVE),
	SNMP_MIB_ITEM("TCPMTUPFail", LINUX_MIB_TCPMTUPFAIL),
	SNMP_MIB_ITEM("TCPMTUPSuccess", LINUX_MIB_TCPMTUPSUCCESS),
	SNMP_MIB_SENTINEL
};



static void icmpmsg_put_line(struct seq_file *seq, unsigned long *vals,
			     unsigned short *type, int count)
{
	int j;

	if (count) {
		seq_puts(seq, "\nIcmpMsg:");
		for (j = 0; j < count; ++j)
			seq_printf(seq, " %sType%u",
				type[j] & 0x100 ? "Out" : "In",
				type[j] & 0xff);
		seq_puts(seq, "\nIcmpMsg:");
		for (j = 0; j < count; ++j)
			seq_printf(seq, " %lu", vals[j]);
	}
}

Contributors
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CommitProp
david l stevens
david l stevens
41
37.27%
1
12.50%
eric dumazet
eric dumazet
28
25.45%
1
12.50%
pre-git
pre-git
24
21.82%
2
25.00%
hideaki yoshifuji
hideaki yoshifuji
8
7.27%
1
12.50%
arnaldo carvalho de melo
arnaldo carvalho de melo
6
5.45%
1
12.50%
fabian frederick
fabian frederick
2
1.82%
1
12.50%
pavel emelianov
pavel emelianov
1
0.91%
1
12.50%
Total
110
100.00%
8
100.00%



static void icmpmsg_put(struct seq_file *seq)
{

#define PERLINE	16

	int i, count;
	unsigned short type[PERLINE];
	unsigned long vals[PERLINE], val;
	struct net *net = seq->private;

	count = 0;
	for (i = 0; i < ICMPMSG_MIB_MAX; i++) {
		val = atomic_long_read(&net->mib.icmpmsg_statistics->mibs[i]);
		if (val) {
			type[count] = i;
			vals[count++] = val;
		}
		if (count == PERLINE) {
			icmpmsg_put_line(seq, vals, type, count);
			count = 0;
		}
	}
	icmpmsg_put_line(seq, vals, type, count);


#undef PERLINE
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
eric dumazet
eric dumazet
107
76.98%
2
33.33%
david l stevens
david l stevens
27
19.42%
1
16.67%
pavel emelianov
pavel emelianov
4
2.88%
2
33.33%
hideaki yoshifuji
hideaki yoshifuji
1
0.72%
1
16.67%
Total
139
100.00%
6
100.00%



static void icmp_put(struct seq_file *seq)
{
	int i;
	struct net *net = seq->private;
	atomic_long_t *ptr = net->mib.icmpmsg_statistics->mibs;

	seq_puts(seq, "\nIcmp: InMsgs InErrors InCsumErrors");
	for (i = 0; icmpmibmap[i].name != NULL; i++)
		seq_printf(seq, " In%s", icmpmibmap[i].name);
	seq_puts(seq, " OutMsgs OutErrors");
	for (i = 0; icmpmibmap[i].name != NULL; i++)
		seq_printf(seq, " Out%s", icmpmibmap[i].name);
	seq_printf(seq, "\nIcmp: %lu %lu %lu",
		snmp_fold_field(net->mib.icmp_statistics, ICMP_MIB_INMSGS),
		snmp_fold_field(net->mib.icmp_statistics, ICMP_MIB_INERRORS),
		snmp_fold_field(net->mib.icmp_statistics, ICMP_MIB_CSUMERRORS));
	for (i = 0; icmpmibmap[i].name != NULL; i++)
		seq_printf(seq, " %lu",
			   atomic_long_read(ptr + icmpmibmap[i].index));
	seq_printf(seq, " %lu %lu",
		snmp_fold_field(net->mib.icmp_statistics, ICMP_MIB_OUTMSGS),
		snmp_fold_field(net->mib.icmp_statistics, ICMP_MIB_OUTERRORS));
	for (i = 0; icmpmibmap[i].name != NULL; i++)
		seq_printf(seq, " %lu",
			   atomic_long_read(ptr + (icmpmibmap[i].index | 0x100)));
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
david l stevens
david l stevens
153
58.85%
1
9.09%
eric dumazet
eric dumazet
32
12.31%
2
18.18%
pavel emelianov
pavel emelianov
25
9.62%
2
18.18%
hideaki yoshifuji
hideaki yoshifuji
22
8.46%
1
9.09%
pre-git
pre-git
21
8.08%
2
18.18%
arnaldo carvalho de melo
arnaldo carvalho de melo
4
1.54%
1
9.09%
mitsuru chinen
mitsuru chinen
2
0.77%
1
9.09%
fabian frederick
fabian frederick
1
0.38%
1
9.09%
Total
260
100.00%
11
100.00%

/*
 *      Called from the PROCfs module. This outputs /proc/net/snmp.
 */


static int snmp_seq_show(struct seq_file *seq, void *v)
{
	int i;
	struct net *net = seq->private;

	seq_puts(seq, "Ip: Forwarding DefaultTTL");

	for (i = 0; snmp4_ipstats_list[i].name != NULL; i++)
		seq_printf(seq, " %s", snmp4_ipstats_list[i].name);

	seq_printf(seq, "\nIp: %d %d",
		   IPV4_DEVCONF_ALL(net, FORWARDING) ? 1 : 2,
		   net->ipv4.sysctl_ip_default_ttl);

	BUILD_BUG_ON(offsetof(struct ipstats_mib, mibs) != 0);
	for (i = 0; snmp4_ipstats_list[i].name != NULL; i++)
		seq_printf(seq, " %llu",
			   snmp_fold_field64(net->mib.ip_statistics,
					     snmp4_ipstats_list[i].entry,
					     offsetof(struct ipstats_mib, syncp)));

	icmp_put(seq);	/* RFC 2011 compatibility */
	icmpmsg_put(seq);

	seq_puts(seq, "\nTcp:");
	for (i = 0; snmp4_tcp_list[i].name != NULL; i++)
		seq_printf(seq, " %s", snmp4_tcp_list[i].name);

	seq_puts(seq, "\nTcp:");
	for (i = 0; snmp4_tcp_list[i].name != NULL; i++) {
		/* MaxConn field is signed, RFC 2012 */
		if (snmp4_tcp_list[i].entry == TCP_MIB_MAXCONN)
			seq_printf(seq, " %ld",
				   snmp_fold_field(net->mib.tcp_statistics,
						   snmp4_tcp_list[i].entry));
		else
			seq_printf(seq, " %lu",
				   snmp_fold_field(net->mib.tcp_statistics,
						   snmp4_tcp_list[i].entry));
	}

	seq_puts(seq, "\nUdp:");
	for (i = 0; snmp4_udp_list[i].name != NULL; i++)
		seq_printf(seq, " %s", snmp4_udp_list[i].name);

	seq_puts(seq, "\nUdp:");
	for (i = 0; snmp4_udp_list[i].name != NULL; i++)
		seq_printf(seq, " %lu",
			   snmp_fold_field(net->mib.udp_statistics,
					   snmp4_udp_list[i].entry));

	/* the UDP and UDP-Lite MIBs are the same */
	seq_puts(seq, "\nUdpLite:");
	for (i = 0; snmp4_udp_list[i].name != NULL; i++)
		seq_printf(seq, " %s", snmp4_udp_list[i].name);

	seq_puts(seq, "\nUdpLite:");
	for (i = 0; snmp4_udp_list[i].name != NULL; i++)
		seq_printf(seq, " %lu",
			   snmp_fold_field(net->mib.udplite_statistics,
					   snmp4_udp_list[i].entry));

	seq_putc(seq, '\n');
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
hideaki yoshifuji
hideaki yoshifuji
122
25.79%
2
10.53%
david l stevens
david l stevens
112
23.68%
1
5.26%
gerrit renker
gerrit renker
83
17.55%
1
5.26%
pre-git
pre-git
62
13.11%
3
15.79%
pavel emelianov
pavel emelianov
31
6.55%
7
36.84%
eric dumazet
eric dumazet
23
4.86%
1
5.26%
nivedita singhvi
nivedita singhvi
21
4.44%
1
5.26%
arnaldo carvalho de melo
arnaldo carvalho de melo
11
2.33%
1
5.26%
nikolay borisov
nikolay borisov
4
0.85%
1
5.26%
herbert xu
herbert xu
4
0.85%
1
5.26%
Total
473
100.00%
19
100.00%



static int snmp_seq_open(struct inode *inode, struct file *file)
{
	return single_open_net(inode, file, snmp_seq_show);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
arnaldo carvalho de melo
arnaldo carvalho de melo
18
69.23%
1
33.33%
pavel emelianov
pavel emelianov
8
30.77%
2
66.67%
Total
26
100.00%
3
100.00%


static const struct file_operations snmp_seq_fops = {
	.owner	 = THIS_MODULE,
	.open	 = snmp_seq_open,
	.read	 = seq_read,
	.llseek	 = seq_lseek,
	.release = single_release_net,
};



/*
 *      Output /proc/net/netstat
 */


static int netstat_seq_show(struct seq_file *seq, void *v)
{
	int i;
	struct net *net = seq->private;

	seq_puts(seq, "TcpExt:");
	for (i = 0; snmp4_net_list[i].name != NULL; i++)
		seq_printf(seq, " %s", snmp4_net_list[i].name);

	seq_puts(seq, "\nTcpExt:");
	for (i = 0; snmp4_net_list[i].name != NULL; i++)
		seq_printf(seq, " %lu",
			   snmp_fold_field(net->mib.net_statistics,
					   snmp4_net_list[i].entry));

	seq_puts(seq, "\nIpExt:");
	for (i = 0; snmp4_ipextstats_list[i].name != NULL; i++)
		seq_printf(seq, " %s", snmp4_ipextstats_list[i].name);

	seq_puts(seq, "\nIpExt:");
	for (i = 0; snmp4_ipextstats_list[i].name != NULL; i++)
		seq_printf(seq, " %llu",
			   snmp_fold_field64(net->mib.ip_statistics,
					     snmp4_ipextstats_list[i].entry,
					     offsetof(struct ipstats_mib, syncp)));

	seq_putc(seq, '\n');
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
mitsuru chinen
mitsuru chinen
81
36.99%
1
7.69%
hideaki yoshifuji
hideaki yoshifuji
52
23.74%
1
7.69%
pre-git
pre-git
43
19.63%
4
30.77%
pavel emelianov
pavel emelianov
17
7.76%
3
23.08%
arnaldo carvalho de melo
arnaldo carvalho de melo
14
6.39%
1
7.69%
eric dumazet
eric dumazet
10
4.57%
1
7.69%
herbert xu
herbert xu
1
0.46%
1
7.69%
cal peake
cal peake
1
0.46%
1
7.69%
Total
219
100.00%
13
100.00%



static int netstat_seq_open(struct inode *inode, struct file *file)
{
	return single_open_net(inode, file, netstat_seq_show);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
arnaldo carvalho de melo
arnaldo carvalho de melo
18
69.23%
1
33.33%
pavel emelianov
pavel emelianov
8
30.77%
2
66.67%
Total
26
100.00%
3
100.00%


static const struct file_operations netstat_seq_fops = {
	.owner	 = THIS_MODULE,
	.open	 = netstat_seq_open,
	.read	 = seq_read,
	.llseek	 = seq_lseek,
	.release = single_release_net,
};



static __net_init int ip_proc_init_net(struct net *net)
{
	if (!proc_create("sockstat", S_IRUGO, net->proc_net,
			 &sockstat_seq_fops))
		goto out_sockstat;
	if (!proc_create("netstat", S_IRUGO, net->proc_net, &netstat_seq_fops))
		goto out_netstat;
	if (!proc_create("snmp", S_IRUGO, net->proc_net, &snmp_seq_fops))
		goto out_snmp;

	return 0;

out_snmp:
	remove_proc_entry("netstat", net->proc_net);
out_netstat:
	remove_proc_entry("sockstat", net->proc_net);
out_sockstat:
	return -ENOMEM;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
pavel emelianov
pavel emelianov
78
75.73%
4
66.67%
gao feng
gao feng
25
24.27%
2
33.33%
Total
103
100.00%
6
100.00%



static __net_exit void ip_proc_exit_net(struct net *net)
{
	remove_proc_entry("snmp", net->proc_net);
	remove_proc_entry("netstat", net->proc_net);
	remove_proc_entry("sockstat", net->proc_net);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
pavel emelianov
pavel emelianov
24
61.54%
3
75.00%
gao feng
gao feng
15
38.46%
1
25.00%
Total
39
100.00%
4
100.00%


static __net_initdata struct pernet_operations ip_proc_ops = {
	.init = ip_proc_init_net,
	.exit = ip_proc_exit_net,
};



int __init ip_misc_proc_init(void)
{
	return register_pernet_subsys(&ip_proc_ops);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
arnaldo carvalho de melo
arnaldo carvalho de melo
11
73.33%
1
25.00%
pavel emelianov
pavel emelianov
3
20.00%
2
50.00%
eric w. biederman
eric w. biederman
1
6.67%
1
25.00%
Total
15
100.00%
4
100.00%

Overall Contributors
Person
Tokens
Prop
Commits
CommitProp
hideaki yoshifuji
hideaki yoshifuji
968
30.98%
4
3.92%
eric dumazet
eric dumazet
408
13.06%
21
20.59%
david l stevens
david l stevens
398
12.74%
1
0.98%
pavel emelianov
pavel emelianov
249
7.97%
17
16.67%
pre-git
pre-git
222
7.10%
13
12.75%
arnaldo carvalho de melo
arnaldo carvalho de melo
210
6.72%
6
5.88%
mitsuru chinen
mitsuru chinen
136
4.35%
2
1.96%
gerrit renker
gerrit renker
97
3.10%
1
0.98%
ilpo jarvinen
ilpo jarvinen
49
1.57%
3
2.94%
neil horman
neil horman
44
1.41%
1
0.98%
neal cardwell
neal cardwell
42
1.34%
1
0.98%
gao feng
gao feng
40
1.28%
2
1.96%
florian westphal
florian westphal
37
1.18%
2
1.96%
herbert xu
herbert xu
33
1.06%
2
1.96%
yuchung cheng
yuchung cheng
28
0.90%
2
1.96%
jerry chu
jerry chu
28
0.90%
1
0.98%
rick jones
rick jones
21
0.67%
2
1.96%
nivedita singhvi
nivedita singhvi
21
0.67%
1
0.98%
martin bligh
martin bligh
14
0.45%
1
0.98%
david s. miller
david s. miller
14
0.45%
1
0.98%
nandita dukkipati
nandita dukkipati
14
0.45%
2
1.96%
arjan van de ven
arjan van de ven
7
0.22%
2
1.96%
eliezer tamir
eliezer tamir
7
0.22%
2
1.96%
tom herbert
tom herbert
7
0.22%
1
0.98%
glauber costa
glauber costa
6
0.19%
1
0.98%
nikolay borisov
nikolay borisov
4
0.13%
1
0.98%
eric w. biederman
eric w. biederman
4
0.13%
1
0.98%
hideo aoki
hideo aoki
4
0.13%
1
0.98%
fabian frederick
fabian frederick
3
0.10%
1
0.98%
paul gortmaker
paul gortmaker
3
0.10%
1
0.98%
thomas gleixner
thomas gleixner
2
0.06%
1
0.98%
alexey dobriyan
alexey dobriyan
2
0.06%
1
0.98%
stephen hemminger
stephen hemminger
1
0.03%
1
0.98%
adrian bunk
adrian bunk
1
0.03%
1
0.98%
cal peake
cal peake
1
0.03%
1
0.98%
Total
3125
100.00%
102
100.00%
  
Directory: net/ipv4

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