^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) * inet6 interface/address list definitions
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * Linux INET6 implementation
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * Authors:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Pedro Roque <roque@di.fc.ul.pt>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #ifndef _NET_IF_INET6_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #define _NET_IF_INET6_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <net/snmp.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/ipv6.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/refcount.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) /* inet6_dev.if_flags */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #define IF_RA_OTHERCONF 0x80
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #define IF_RA_MANAGED 0x40
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #define IF_RA_RCVD 0x20
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #define IF_RS_SENT 0x10
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #define IF_READY 0x80000000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) /* prefix flags */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #define IF_PREFIX_ONLINK 0x01
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #define IF_PREFIX_AUTOCONF 0x02
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) enum {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) INET6_IFADDR_STATE_PREDAD,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) INET6_IFADDR_STATE_DAD,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) INET6_IFADDR_STATE_POSTDAD,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) INET6_IFADDR_STATE_ERRDAD,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) INET6_IFADDR_STATE_DEAD,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) struct inet6_ifaddr {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) struct in6_addr addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) __u32 prefix_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) __u32 rt_priority;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) /* In seconds, relative to tstamp. Expiry is at tstamp + HZ * lft. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) __u32 valid_lft;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) __u32 prefered_lft;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) refcount_t refcnt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) spinlock_t lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) int state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) __u32 flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) __u8 dad_probes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) __u8 stable_privacy_retry;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) __u16 scope;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) __u64 dad_nonce;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) unsigned long cstamp; /* created timestamp */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) unsigned long tstamp; /* updated timestamp */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) struct delayed_work dad_work;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) struct inet6_dev *idev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) struct fib6_info *rt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) struct hlist_node addr_lst;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) struct list_head if_list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) struct list_head tmp_list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) struct inet6_ifaddr *ifpub;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) int regen_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) bool tokenized;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) struct rcu_head rcu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) struct in6_addr peer_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) struct ip6_sf_socklist {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) unsigned int sl_max;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) unsigned int sl_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) struct in6_addr sl_addr[];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) #define IP6_SFLSIZE(count) (sizeof(struct ip6_sf_socklist) + \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) (count) * sizeof(struct in6_addr))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) #define IP6_SFBLOCK 10 /* allocate this many at once */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) struct ipv6_mc_socklist {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) struct in6_addr addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) int ifindex;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) unsigned int sfmode; /* MCAST_{INCLUDE,EXCLUDE} */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) struct ipv6_mc_socklist __rcu *next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) rwlock_t sflock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) struct ip6_sf_socklist *sflist;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) struct rcu_head rcu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) struct ip6_sf_list {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) struct ip6_sf_list *sf_next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) struct in6_addr sf_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) unsigned long sf_count[2]; /* include/exclude counts */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) unsigned char sf_gsresp; /* include in g & s response? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) unsigned char sf_oldin; /* change state */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) unsigned char sf_crcount; /* retrans. left to send */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) #define MAF_TIMER_RUNNING 0x01
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) #define MAF_LAST_REPORTER 0x02
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) #define MAF_LOADED 0x04
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) #define MAF_NOREPORT 0x08
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) #define MAF_GSQUERY 0x10
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) struct ifmcaddr6 {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) struct in6_addr mca_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) struct inet6_dev *idev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) struct ifmcaddr6 *next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) struct ip6_sf_list *mca_sources;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) struct ip6_sf_list *mca_tomb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) unsigned int mca_sfmode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) unsigned char mca_crcount;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) unsigned long mca_sfcount[2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) struct timer_list mca_timer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) unsigned int mca_flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) int mca_users;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) refcount_t mca_refcnt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) spinlock_t mca_lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) unsigned long mca_cstamp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) unsigned long mca_tstamp;
^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) /* Anycast stuff */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) struct ipv6_ac_socklist {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) struct in6_addr acl_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) int acl_ifindex;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) struct ipv6_ac_socklist *acl_next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) struct ifacaddr6 {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) struct in6_addr aca_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) struct fib6_info *aca_rt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) struct ifacaddr6 *aca_next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) struct hlist_node aca_addr_lst;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) int aca_users;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) refcount_t aca_refcnt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) unsigned long aca_cstamp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) unsigned long aca_tstamp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) struct rcu_head rcu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) #define IFA_HOST IPV6_ADDR_LOOPBACK
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) #define IFA_LINK IPV6_ADDR_LINKLOCAL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) #define IFA_SITE IPV6_ADDR_SITELOCAL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) struct ipv6_devstat {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) struct proc_dir_entry *proc_dir_entry;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) DEFINE_SNMP_STAT(struct ipstats_mib, ipv6);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) DEFINE_SNMP_STAT_ATOMIC(struct icmpv6_mib_device, icmpv6dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) DEFINE_SNMP_STAT_ATOMIC(struct icmpv6msg_mib_device, icmpv6msgdev);
^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) struct inet6_dev {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) struct net_device *dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) struct list_head addr_list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) struct ifmcaddr6 *mc_list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) struct ifmcaddr6 *mc_tomb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) spinlock_t mc_lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) unsigned char mc_qrv; /* Query Robustness Variable */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) unsigned char mc_gq_running;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) unsigned char mc_ifc_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) unsigned char mc_dad_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) unsigned long mc_v1_seen; /* Max time we stay in MLDv1 mode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) unsigned long mc_qi; /* Query Interval */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) unsigned long mc_qri; /* Query Response Interval */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) unsigned long mc_maxdelay;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) struct timer_list mc_gq_timer; /* general query timer */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) struct timer_list mc_ifc_timer; /* interface change timer */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) struct timer_list mc_dad_timer; /* dad complete mc timer */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) struct ifacaddr6 *ac_list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) rwlock_t lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) refcount_t refcnt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) __u32 if_flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) int dead;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) u32 desync_factor;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) struct list_head tempaddr_list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) struct in6_addr token;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) struct neigh_parms *nd_parms;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) struct ipv6_devconf cnf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) struct ipv6_devstat stats;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) struct timer_list rs_timer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) __s32 rs_interval; /* in jiffies */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) __u8 rs_probes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) unsigned long tstamp; /* ipv6InterfaceTable update timestamp */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) struct rcu_head rcu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) static inline void ipv6_eth_mc_map(const struct in6_addr *addr, char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) {
^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) * | 33 | 33 | DST13 | DST14 | DST15 | DST16 |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) * +-------+-------+-------+-------+-------+-------+
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) buf[0]= 0x33;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) buf[1]= 0x33;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) memcpy(buf + 2, &addr->s6_addr32[3], sizeof(__u32));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) static inline void ipv6_arcnet_mc_map(const struct in6_addr *addr, char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) buf[0] = 0x00;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) static inline void ipv6_ib_mc_map(const struct in6_addr *addr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) const unsigned char *broadcast, char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) unsigned char scope = broadcast[5] & 0xF;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) buf[0] = 0; /* Reserved */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) buf[1] = 0xff; /* Multicast QPN */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) buf[2] = 0xff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) buf[3] = 0xff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) buf[4] = 0xff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) buf[5] = 0x10 | scope; /* scope from broadcast address */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) buf[6] = 0x60; /* IPv6 signature */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) buf[7] = 0x1b;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) buf[8] = broadcast[8]; /* P_Key */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) buf[9] = broadcast[9];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) memcpy(buf + 10, addr->s6_addr + 6, 10);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) static inline int ipv6_ipgre_mc_map(const struct in6_addr *addr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) const unsigned char *broadcast, char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) if ((broadcast[0] | broadcast[1] | broadcast[2] | broadcast[3]) != 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) memcpy(buf, broadcast, 4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) /* v4mapped? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) if ((addr->s6_addr32[0] | addr->s6_addr32[1] |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) (addr->s6_addr32[2] ^ htonl(0x0000ffff))) != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) memcpy(buf, &addr->s6_addr32[3], 4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) #endif
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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