Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) // SPDX-License-Identifier: GPL-2.0-or-later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3)  * INET		An implementation of the TCP/IP protocol suite for the LINUX
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4)  *		operating system.  INET is implemented using the  BSD Socket
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5)  *		interface as the means of communication with the user level.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7)  *		This file implements the various access functions for the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8)  *		PROC file system.  This is very similar to the IPv4 version,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9)  *		except it reports the sockets in the INET6 address family.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11)  * Authors:	David S. Miller (davem@caip.rutgers.edu)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12)  *		YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) #include <linux/socket.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) #include <linux/net.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) #include <linux/ipv6.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) #include <linux/proc_fs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) #include <linux/seq_file.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) #include <linux/stddef.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) #include <linux/export.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) #include <net/net_namespace.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) #include <net/ip.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) #include <net/sock.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) #include <net/tcp.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) #include <net/udp.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) #include <net/transp_v6.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) #include <net/ipv6.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) #define MAX4(a, b, c, d) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) 	max_t(u32, max_t(u32, a, b), max_t(u32, c, d))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) #define SNMP_MIB_MAX MAX4(UDP_MIB_MAX, TCP_MIB_MAX, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) 			IPSTATS_MIB_MAX, ICMP_MIB_MAX)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) static int sockstat6_seq_show(struct seq_file *seq, void *v)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) 	struct net *net = seq->private;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) 	seq_printf(seq, "TCP6: inuse %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) 		       sock_prot_inuse_get(net, &tcpv6_prot));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) 	seq_printf(seq, "UDP6: inuse %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) 		       sock_prot_inuse_get(net, &udpv6_prot));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) 	seq_printf(seq, "UDPLITE6: inuse %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) 			sock_prot_inuse_get(net, &udplitev6_prot));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) 	seq_printf(seq, "RAW6: inuse %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) 		       sock_prot_inuse_get(net, &rawv6_prot));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) 	seq_printf(seq, "FRAG6: inuse %u memory %lu\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) 		   atomic_read(&net->ipv6.fqdir->rhashtable.nelems),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) 		   frag_mem_limit(net->ipv6.fqdir));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) static const struct snmp_mib snmp6_ipstats_list[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) /* ipv6 mib according to RFC 2465 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) 	SNMP_MIB_ITEM("Ip6InReceives", IPSTATS_MIB_INPKTS),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) 	SNMP_MIB_ITEM("Ip6InHdrErrors", IPSTATS_MIB_INHDRERRORS),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) 	SNMP_MIB_ITEM("Ip6InTooBigErrors", IPSTATS_MIB_INTOOBIGERRORS),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) 	SNMP_MIB_ITEM("Ip6InNoRoutes", IPSTATS_MIB_INNOROUTES),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 	SNMP_MIB_ITEM("Ip6InAddrErrors", IPSTATS_MIB_INADDRERRORS),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) 	SNMP_MIB_ITEM("Ip6InUnknownProtos", IPSTATS_MIB_INUNKNOWNPROTOS),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) 	SNMP_MIB_ITEM("Ip6InTruncatedPkts", IPSTATS_MIB_INTRUNCATEDPKTS),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 	SNMP_MIB_ITEM("Ip6InDiscards", IPSTATS_MIB_INDISCARDS),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) 	SNMP_MIB_ITEM("Ip6InDelivers", IPSTATS_MIB_INDELIVERS),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) 	SNMP_MIB_ITEM("Ip6OutForwDatagrams", IPSTATS_MIB_OUTFORWDATAGRAMS),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 	SNMP_MIB_ITEM("Ip6OutRequests", IPSTATS_MIB_OUTPKTS),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) 	SNMP_MIB_ITEM("Ip6OutDiscards", IPSTATS_MIB_OUTDISCARDS),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 	SNMP_MIB_ITEM("Ip6OutNoRoutes", IPSTATS_MIB_OUTNOROUTES),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) 	SNMP_MIB_ITEM("Ip6ReasmTimeout", IPSTATS_MIB_REASMTIMEOUT),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 	SNMP_MIB_ITEM("Ip6ReasmReqds", IPSTATS_MIB_REASMREQDS),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) 	SNMP_MIB_ITEM("Ip6ReasmOKs", IPSTATS_MIB_REASMOKS),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) 	SNMP_MIB_ITEM("Ip6ReasmFails", IPSTATS_MIB_REASMFAILS),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 	SNMP_MIB_ITEM("Ip6FragOKs", IPSTATS_MIB_FRAGOKS),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) 	SNMP_MIB_ITEM("Ip6FragFails", IPSTATS_MIB_FRAGFAILS),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) 	SNMP_MIB_ITEM("Ip6FragCreates", IPSTATS_MIB_FRAGCREATES),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) 	SNMP_MIB_ITEM("Ip6InMcastPkts", IPSTATS_MIB_INMCASTPKTS),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) 	SNMP_MIB_ITEM("Ip6OutMcastPkts", IPSTATS_MIB_OUTMCASTPKTS),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) 	SNMP_MIB_ITEM("Ip6InOctets", IPSTATS_MIB_INOCTETS),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) 	SNMP_MIB_ITEM("Ip6OutOctets", IPSTATS_MIB_OUTOCTETS),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) 	SNMP_MIB_ITEM("Ip6InMcastOctets", IPSTATS_MIB_INMCASTOCTETS),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) 	SNMP_MIB_ITEM("Ip6OutMcastOctets", IPSTATS_MIB_OUTMCASTOCTETS),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) 	SNMP_MIB_ITEM("Ip6InBcastOctets", IPSTATS_MIB_INBCASTOCTETS),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) 	SNMP_MIB_ITEM("Ip6OutBcastOctets", IPSTATS_MIB_OUTBCASTOCTETS),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) 	/* IPSTATS_MIB_CSUMERRORS is not relevant in IPv6 (no checksum) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) 	SNMP_MIB_ITEM("Ip6InNoECTPkts", IPSTATS_MIB_NOECTPKTS),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) 	SNMP_MIB_ITEM("Ip6InECT1Pkts", IPSTATS_MIB_ECT1PKTS),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) 	SNMP_MIB_ITEM("Ip6InECT0Pkts", IPSTATS_MIB_ECT0PKTS),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) 	SNMP_MIB_ITEM("Ip6InCEPkts", IPSTATS_MIB_CEPKTS),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 	SNMP_MIB_SENTINEL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) static const struct snmp_mib snmp6_icmp6_list[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) /* icmpv6 mib according to RFC 2466 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 	SNMP_MIB_ITEM("Icmp6InMsgs", ICMP6_MIB_INMSGS),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 	SNMP_MIB_ITEM("Icmp6InErrors", ICMP6_MIB_INERRORS),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 	SNMP_MIB_ITEM("Icmp6OutMsgs", ICMP6_MIB_OUTMSGS),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 	SNMP_MIB_ITEM("Icmp6OutErrors", ICMP6_MIB_OUTERRORS),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) 	SNMP_MIB_ITEM("Icmp6InCsumErrors", ICMP6_MIB_CSUMERRORS),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 	SNMP_MIB_SENTINEL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) /* RFC 4293 v6 ICMPMsgStatsTable; named items for RFC 2466 compatibility */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) static const char *const icmp6type2name[256] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 	[ICMPV6_DEST_UNREACH] = "DestUnreachs",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 	[ICMPV6_PKT_TOOBIG] = "PktTooBigs",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 	[ICMPV6_TIME_EXCEED] = "TimeExcds",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 	[ICMPV6_PARAMPROB] = "ParmProblems",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 	[ICMPV6_ECHO_REQUEST] = "Echos",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 	[ICMPV6_ECHO_REPLY] = "EchoReplies",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 	[ICMPV6_MGM_QUERY] = "GroupMembQueries",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 	[ICMPV6_MGM_REPORT] = "GroupMembResponses",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 	[ICMPV6_MGM_REDUCTION] = "GroupMembReductions",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 	[ICMPV6_MLD2_REPORT] = "MLDv2Reports",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 	[NDISC_ROUTER_ADVERTISEMENT] = "RouterAdvertisements",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 	[NDISC_ROUTER_SOLICITATION] = "RouterSolicits",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 	[NDISC_NEIGHBOUR_ADVERTISEMENT] = "NeighborAdvertisements",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 	[NDISC_NEIGHBOUR_SOLICITATION] = "NeighborSolicits",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 	[NDISC_REDIRECT] = "Redirects",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) static const struct snmp_mib snmp6_udp6_list[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 	SNMP_MIB_ITEM("Udp6InDatagrams", UDP_MIB_INDATAGRAMS),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 	SNMP_MIB_ITEM("Udp6NoPorts", UDP_MIB_NOPORTS),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 	SNMP_MIB_ITEM("Udp6InErrors", UDP_MIB_INERRORS),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 	SNMP_MIB_ITEM("Udp6OutDatagrams", UDP_MIB_OUTDATAGRAMS),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 	SNMP_MIB_ITEM("Udp6RcvbufErrors", UDP_MIB_RCVBUFERRORS),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 	SNMP_MIB_ITEM("Udp6SndbufErrors", UDP_MIB_SNDBUFERRORS),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 	SNMP_MIB_ITEM("Udp6InCsumErrors", UDP_MIB_CSUMERRORS),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 	SNMP_MIB_ITEM("Udp6IgnoredMulti", UDP_MIB_IGNOREDMULTI),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 	SNMP_MIB_SENTINEL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) static const struct snmp_mib snmp6_udplite6_list[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 	SNMP_MIB_ITEM("UdpLite6InDatagrams", UDP_MIB_INDATAGRAMS),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 	SNMP_MIB_ITEM("UdpLite6NoPorts", UDP_MIB_NOPORTS),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 	SNMP_MIB_ITEM("UdpLite6InErrors", UDP_MIB_INERRORS),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) 	SNMP_MIB_ITEM("UdpLite6OutDatagrams", UDP_MIB_OUTDATAGRAMS),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 	SNMP_MIB_ITEM("UdpLite6RcvbufErrors", UDP_MIB_RCVBUFERRORS),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 	SNMP_MIB_ITEM("UdpLite6SndbufErrors", UDP_MIB_SNDBUFERRORS),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 	SNMP_MIB_ITEM("UdpLite6InCsumErrors", UDP_MIB_CSUMERRORS),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 	SNMP_MIB_SENTINEL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) static void snmp6_seq_show_icmpv6msg(struct seq_file *seq, atomic_long_t *smib)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 	char name[32];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 	int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 	/* print by name -- deprecated items */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 	for (i = 0; i < ICMP6MSG_MIB_MAX; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 		int icmptype;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 		const char *p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 		icmptype = i & 0xff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 		p = icmp6type2name[icmptype];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 		if (!p)	/* don't print un-named types here */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 			continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 		snprintf(name, sizeof(name), "Icmp6%s%s",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 			i & 0x100 ? "Out" : "In", p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 		seq_printf(seq, "%-32s\t%lu\n", name,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 			   atomic_long_read(smib + i));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 	/* print by number (nonzero only) - ICMPMsgStat format */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 	for (i = 0; i < ICMP6MSG_MIB_MAX; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 		unsigned long val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 		val = atomic_long_read(smib + i);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 		if (!val)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 			continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 		snprintf(name, sizeof(name), "Icmp6%sType%u",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 			i & 0x100 ?  "Out" : "In", i & 0xff);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 		seq_printf(seq, "%-32s\t%lu\n", name, val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) /* can be called either with percpu mib (pcpumib != NULL),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177)  * or shared one (smib != NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) static void snmp6_seq_show_item(struct seq_file *seq, void __percpu *pcpumib,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 				atomic_long_t *smib,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 				const struct snmp_mib *itemlist)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 	unsigned long buff[SNMP_MIB_MAX];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 	int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 	if (pcpumib) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) 		memset(buff, 0, sizeof(unsigned long) * SNMP_MIB_MAX);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) 		snmp_get_cpu_field_batch(buff, itemlist, pcpumib);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 		for (i = 0; itemlist[i].name; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) 			seq_printf(seq, "%-32s\t%lu\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 				   itemlist[i].name, buff[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 	} else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 		for (i = 0; itemlist[i].name; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 			seq_printf(seq, "%-32s\t%lu\n", itemlist[i].name,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 				   atomic_long_read(smib + itemlist[i].entry));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) static void snmp6_seq_show_item64(struct seq_file *seq, void __percpu *mib,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 				  const struct snmp_mib *itemlist, size_t syncpoff)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 	u64 buff64[SNMP_MIB_MAX];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 	int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 	memset(buff64, 0, sizeof(u64) * SNMP_MIB_MAX);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 	snmp_get_cpu_field64_batch(buff64, itemlist, mib, syncpoff);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 	for (i = 0; itemlist[i].name; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 		seq_printf(seq, "%-32s\t%llu\n", itemlist[i].name, buff64[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) static int snmp6_seq_show(struct seq_file *seq, void *v)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 	struct net *net = (struct net *)seq->private;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 	snmp6_seq_show_item64(seq, net->mib.ipv6_statistics,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 			    snmp6_ipstats_list, offsetof(struct ipstats_mib, syncp));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 	snmp6_seq_show_item(seq, net->mib.icmpv6_statistics,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 			    NULL, snmp6_icmp6_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 	snmp6_seq_show_icmpv6msg(seq, net->mib.icmpv6msg_statistics->mibs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 	snmp6_seq_show_item(seq, net->mib.udp_stats_in6,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) 			    NULL, snmp6_udp6_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) 	snmp6_seq_show_item(seq, net->mib.udplite_stats_in6,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) 			    NULL, snmp6_udplite6_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) static int snmp6_dev_seq_show(struct seq_file *seq, void *v)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) 	struct inet6_dev *idev = (struct inet6_dev *)seq->private;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) 	seq_printf(seq, "%-32s\t%u\n", "ifIndex", idev->dev->ifindex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) 	snmp6_seq_show_item64(seq, idev->stats.ipv6,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) 			    snmp6_ipstats_list, offsetof(struct ipstats_mib, syncp));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) 	snmp6_seq_show_item(seq, NULL, idev->stats.icmpv6dev->mibs,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) 			    snmp6_icmp6_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) 	snmp6_seq_show_icmpv6msg(seq, idev->stats.icmpv6msgdev->mibs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) int snmp6_register_dev(struct inet6_dev *idev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) 	struct proc_dir_entry *p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) 	struct net *net;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) 	if (!idev || !idev->dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) 	net = dev_net(idev->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) 	if (!net->mib.proc_net_devsnmp6)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) 		return -ENOENT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) 	p = proc_create_single_data(idev->dev->name, 0444,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) 			net->mib.proc_net_devsnmp6, snmp6_dev_seq_show, idev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) 	if (!p)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) 		return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) 	idev->stats.proc_dir_entry = p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) int snmp6_unregister_dev(struct inet6_dev *idev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) 	struct net *net = dev_net(idev->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) 	if (!net->mib.proc_net_devsnmp6)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) 		return -ENOENT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) 	if (!idev->stats.proc_dir_entry)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) 	proc_remove(idev->stats.proc_dir_entry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) 	idev->stats.proc_dir_entry = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) static int __net_init ipv6_proc_init_net(struct net *net)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) 	if (!proc_create_net_single("sockstat6", 0444, net->proc_net,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) 			sockstat6_seq_show, NULL))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) 		return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) 	if (!proc_create_net_single("snmp6", 0444, net->proc_net,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) 			snmp6_seq_show, NULL))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) 		goto proc_snmp6_fail;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) 	net->mib.proc_net_devsnmp6 = proc_mkdir("dev_snmp6", net->proc_net);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) 	if (!net->mib.proc_net_devsnmp6)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) 		goto proc_dev_snmp6_fail;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) proc_dev_snmp6_fail:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) 	remove_proc_entry("snmp6", net->proc_net);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) proc_snmp6_fail:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) 	remove_proc_entry("sockstat6", net->proc_net);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) 	return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) static void __net_exit ipv6_proc_exit_net(struct net *net)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) 	remove_proc_entry("sockstat6", net->proc_net);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) 	remove_proc_entry("dev_snmp6", net->proc_net);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) 	remove_proc_entry("snmp6", net->proc_net);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) static struct pernet_operations ipv6_proc_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) 	.init = ipv6_proc_init_net,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) 	.exit = ipv6_proc_exit_net,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) int __init ipv6_misc_proc_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) 	return register_pernet_subsys(&ipv6_proc_ops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) void ipv6_misc_proc_exit(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) 	unregister_pernet_subsys(&ipv6_proc_ops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) }