icmp6.h (4f96be33fe7676c69c5abb476bb09bba0c63a3f4) icmp6.h (60d8dbbef075d3b39891ed35e124d0f7ef8e5fb9)
1/* $KAME: icmp6.h,v 1.46 2001/04/27 15:09:48 itojun Exp $ */
2
3/*-
4 * SPDX-License-Identifier: BSD-3-Clause
5 *
6 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
7 * All rights reserved.
8 *

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567 ((((filterp)->icmp6_filt[(type) >> 5]) & (1 << ((type) & 31))) != 0)
568#define ICMP6_FILTER_WILLBLOCK(type, filterp) \
569 ((((filterp)->icmp6_filt[(type) >> 5]) & (1 << ((type) & 31))) == 0)
570
571/*
572 * Variables related to this implementation
573 * of the internet control message protocol version 6.
574 */
1/* $KAME: icmp6.h,v 1.46 2001/04/27 15:09:48 itojun Exp $ */
2
3/*-
4 * SPDX-License-Identifier: BSD-3-Clause
5 *
6 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
7 * All rights reserved.
8 *

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567 ((((filterp)->icmp6_filt[(type) >> 5]) & (1 << ((type) & 31))) != 0)
568#define ICMP6_FILTER_WILLBLOCK(type, filterp) \
569 ((((filterp)->icmp6_filt[(type) >> 5]) & (1 << ((type) & 31))) == 0)
570
571/*
572 * Variables related to this implementation
573 * of the internet control message protocol version 6.
574 */
575struct icmp6errstat {
576 uint64_t icp6errs_dst_unreach_noroute;
577 uint64_t icp6errs_dst_unreach_admin;
578 uint64_t icp6errs_dst_unreach_beyondscope;
579 uint64_t icp6errs_dst_unreach_addr;
580 uint64_t icp6errs_dst_unreach_noport;
581 uint64_t icp6errs_packet_too_big;
582 uint64_t icp6errs_time_exceed_transit;
583 uint64_t icp6errs_time_exceed_reassembly;
584 uint64_t icp6errs_paramprob_header;
585 uint64_t icp6errs_paramprob_nextheader;
586 uint64_t icp6errs_paramprob_option;
587 uint64_t icp6errs_redirect; /* we regard redirect as an error here */
588 uint64_t icp6errs_unknown;
589};
590
591struct icmp6stat {
592/* statistics related to icmp6 packets generated */
593 uint64_t icp6s_error; /* # of calls to icmp6_error */
594 uint64_t icp6s_canterror; /* no error 'cuz old was icmp */
595 uint64_t icp6s_toofreq; /* no error 'cuz rate limitation */
596 uint64_t icp6s_outhist[256];
597/* statistics related to input message processed */
598 uint64_t icp6s_badcode; /* icmp6_code out of range */
599 uint64_t icp6s_tooshort; /* packet < sizeof(struct icmp6_hdr) */
600 uint64_t icp6s_checksum; /* bad checksum */
601 uint64_t icp6s_badlen; /* calculated bound mismatch */
602 uint64_t icp6s_dropped; /* # of packets dropped waiting for a resolution */
603 /*
604 * number of responses: this member is inherited from netinet code, but
605 * for netinet6 code, it is already available in icp6s_outhist[].
606 */
607 uint64_t icp6s_reflect;
608 uint64_t icp6s_inhist[256];
609 uint64_t icp6s_nd_toomanyopt; /* too many ND options */
575struct icmp6stat {
576/* statistics related to icmp6 packets generated */
577 uint64_t icp6s_error; /* # of calls to icmp6_error */
578 uint64_t icp6s_canterror; /* no error 'cuz old was icmp */
579 uint64_t icp6s_toofreq; /* no error 'cuz rate limitation */
580 uint64_t icp6s_outhist[256];
581/* statistics related to input message processed */
582 uint64_t icp6s_badcode; /* icmp6_code out of range */
583 uint64_t icp6s_tooshort; /* packet < sizeof(struct icmp6_hdr) */
584 uint64_t icp6s_checksum; /* bad checksum */
585 uint64_t icp6s_badlen; /* calculated bound mismatch */
586 uint64_t icp6s_dropped; /* # of packets dropped waiting for a resolution */
587 /*
588 * number of responses: this member is inherited from netinet code, but
589 * for netinet6 code, it is already available in icp6s_outhist[].
590 */
591 uint64_t icp6s_reflect;
592 uint64_t icp6s_inhist[256];
593 uint64_t icp6s_nd_toomanyopt; /* too many ND options */
610 struct icmp6errstat icp6s_outerrhist;
611#define icp6s_odst_unreach_noroute \
612 icp6s_outerrhist.icp6errs_dst_unreach_noroute
613#define icp6s_odst_unreach_admin icp6s_outerrhist.icp6errs_dst_unreach_admin
614#define icp6s_odst_unreach_beyondscope \
615 icp6s_outerrhist.icp6errs_dst_unreach_beyondscope
616#define icp6s_odst_unreach_addr icp6s_outerrhist.icp6errs_dst_unreach_addr
617#define icp6s_odst_unreach_noport icp6s_outerrhist.icp6errs_dst_unreach_noport
618#define icp6s_opacket_too_big icp6s_outerrhist.icp6errs_packet_too_big
619#define icp6s_otime_exceed_transit \
620 icp6s_outerrhist.icp6errs_time_exceed_transit
621#define icp6s_otime_exceed_reassembly \
622 icp6s_outerrhist.icp6errs_time_exceed_reassembly
623#define icp6s_oparamprob_header icp6s_outerrhist.icp6errs_paramprob_header
624#define icp6s_oparamprob_nextheader \
625 icp6s_outerrhist.icp6errs_paramprob_nextheader
626#define icp6s_oparamprob_option icp6s_outerrhist.icp6errs_paramprob_option
627#define icp6s_oredirect icp6s_outerrhist.icp6errs_redirect
628#define icp6s_ounknown icp6s_outerrhist.icp6errs_unknown
594 uint64_t icp6s_odst_unreach_noroute;
595 uint64_t icp6s_odst_unreach_admin;
596 uint64_t icp6s_odst_unreach_beyondscope;
597 uint64_t icp6s_odst_unreach_addr;
598 uint64_t icp6s_odst_unreach_noport;
599 uint64_t icp6s_opacket_too_big;
600 uint64_t icp6s_otime_exceed_transit;
601 uint64_t icp6s_otime_exceed_reassembly;
602 uint64_t icp6s_oparamprob_header;
603 uint64_t icp6s_oparamprob_nextheader;
604 uint64_t icp6s_oparamprob_option;
605 uint64_t icp6s_oredirect;
606 uint64_t icp6s_ounknown;
629 uint64_t icp6s_pmtuchg; /* path MTU changes */
630 uint64_t icp6s_nd_badopt; /* bad ND options */
631 uint64_t icp6s_badns; /* bad neighbor solicitation */
632 uint64_t icp6s_badna; /* bad neighbor advertisement */
633 uint64_t icp6s_badrs; /* bad router solicitation */
634 uint64_t icp6s_badra; /* bad router advertisement */
635 uint64_t icp6s_badredirect; /* bad redirect message */
636 uint64_t icp6s_overflowdefrtr; /* Too many default routers. */
637 uint64_t icp6s_overflowprfx; /* Too many prefixes. */
638 uint64_t icp6s_overflownndp; /* Too many neighbour entries. */
639 uint64_t icp6s_overflowredirect;/* Too many redirects. */
640 uint64_t icp6s_invlhlim; /* Invalid hop limit. */
641 uint64_t icp6s_spare[32];
642};
643
644#ifdef _KERNEL
645#include <sys/counter.h>
607 uint64_t icp6s_pmtuchg; /* path MTU changes */
608 uint64_t icp6s_nd_badopt; /* bad ND options */
609 uint64_t icp6s_badns; /* bad neighbor solicitation */
610 uint64_t icp6s_badna; /* bad neighbor advertisement */
611 uint64_t icp6s_badrs; /* bad router solicitation */
612 uint64_t icp6s_badra; /* bad router advertisement */
613 uint64_t icp6s_badredirect; /* bad redirect message */
614 uint64_t icp6s_overflowdefrtr; /* Too many default routers. */
615 uint64_t icp6s_overflowprfx; /* Too many prefixes. */
616 uint64_t icp6s_overflownndp; /* Too many neighbour entries. */
617 uint64_t icp6s_overflowredirect;/* Too many redirects. */
618 uint64_t icp6s_invlhlim; /* Invalid hop limit. */
619 uint64_t icp6s_spare[32];
620};
621
622#ifdef _KERNEL
623#include <sys/counter.h>
624#include <netinet/in_kdtrace.h>
646
647#ifdef SYSCTL_DECL
648SYSCTL_DECL(_net_inet6_icmp6);
649#endif
650
651VNET_PCPUSTAT_DECLARE(struct icmp6stat, icmp6stat);
652/*
653 * In-kernel consumers can use these accessor macros directly to update
654 * stats.
655 */
625
626#ifdef SYSCTL_DECL
627SYSCTL_DECL(_net_inet6_icmp6);
628#endif
629
630VNET_PCPUSTAT_DECLARE(struct icmp6stat, icmp6stat);
631/*
632 * In-kernel consumers can use these accessor macros directly to update
633 * stats.
634 */
656#define ICMP6STAT_ADD(name, val) \
657 VNET_PCPUSTAT_ADD(struct icmp6stat, icmp6stat, name, (val))
658#define ICMP6STAT_INC(name) ICMP6STAT_ADD(name, 1)
635#define ICMP6STAT_ADD(name, val) \
636 do { \
637 MIB_SDT_PROBE1(icmp6, count, name, (val)); \
638 VNET_PCPUSTAT_ADD(struct icmp6stat, icmp6stat, name, (val)); \
639 } while (0)
640#define ICMP6STAT_INC(name) ICMP6STAT_ADD(name, 1)
641#define ICMP6STAT_INC2(name, type) \
642 do { \
643 MIB_SDT_PROBE2(icmp6, count, name, 1, type); \
644 VNET_PCPUSTAT_ADD(struct icmp6stat, icmp6stat, name, 1); \
645 } while (0)
659
660/*
661 * Kernel module consumers must use this accessor macro.
662 */
663void kmod_icmp6stat_inc(int statnum);
646
647/*
648 * Kernel module consumers must use this accessor macro.
649 */
650void kmod_icmp6stat_inc(int statnum);
664#define KMOD_ICMP6STAT_INC(name) \
665 kmod_icmp6stat_inc(offsetof(struct icmp6stat, name) / sizeof(uint64_t))
651#define KMOD_ICMP6STAT_INC(name) \
652 do { \
653 MIB_SDT_PROBE1(icmp6, count, name, 1); \
654 kmod_icmp6stat_inc( \
655 offsetof(struct icmp6stat, name) / sizeof(uint64_t)); \
656 } while (0)
666#endif
667
668/*
669 * Names for ICMP sysctl objects
670 */
671#define ICMPV6CTL_STATS 1
672#define ICMPV6CTL_REDIRACCEPT 2 /* accept/process redirects */
673#define ICMPV6CTL_REDIRTIMEOUT 3 /* redirect cache time */

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658
659/*
660 * Names for ICMP sysctl objects
661 */
662#define ICMPV6CTL_STATS 1
663#define ICMPV6CTL_REDIRACCEPT 2 /* accept/process redirects */
664#define ICMPV6CTL_REDIRTIMEOUT 3 /* redirect cache time */

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