Lines Matching refs:x
53 static inline bool xfrm_state_hold_rcu(struct xfrm_state __rcu *x) in xfrm_state_hold_rcu() argument
55 return refcount_inc_not_zero(&x->refcnt); in xfrm_state_hold_rcu()
89 struct xfrm_state *x; in xfrm_hash_transfer() local
91 hlist_for_each_entry_safe(x, tmp, list, bydst) { in xfrm_hash_transfer()
94 h = __xfrm_dst_hash(&x->id.daddr, &x->props.saddr, in xfrm_hash_transfer()
95 x->props.reqid, x->props.family, in xfrm_hash_transfer()
97 hlist_add_head_rcu(&x->bydst, ndsttable + h); in xfrm_hash_transfer()
99 h = __xfrm_src_hash(&x->id.daddr, &x->props.saddr, in xfrm_hash_transfer()
100 x->props.family, in xfrm_hash_transfer()
102 hlist_add_head_rcu(&x->bysrc, nsrctable + h); in xfrm_hash_transfer()
104 if (x->id.spi) { in xfrm_hash_transfer()
105 h = __xfrm_spi_hash(&x->id.daddr, x->id.spi, in xfrm_hash_transfer()
106 x->id.proto, x->props.family, in xfrm_hash_transfer()
108 hlist_add_head_rcu(&x->byspi, nspitable + h); in xfrm_hash_transfer()
176 int __xfrm_state_delete(struct xfrm_state *x);
178 int km_query(struct xfrm_state *x, struct xfrm_tmpl *t, struct xfrm_policy *pol);
180 void km_state_expired(struct xfrm_state *x, int hard, u32 portid);
474 void xfrm_state_free(struct xfrm_state *x) in xfrm_state_free() argument
476 kmem_cache_free(xfrm_state_cache, x); in xfrm_state_free()
480 static void ___xfrm_state_destroy(struct xfrm_state *x) in ___xfrm_state_destroy() argument
482 hrtimer_cancel(&x->mtimer); in ___xfrm_state_destroy()
483 del_timer_sync(&x->rtimer); in ___xfrm_state_destroy()
484 kfree(x->aead); in ___xfrm_state_destroy()
485 kfree(x->aalg); in ___xfrm_state_destroy()
486 kfree(x->ealg); in ___xfrm_state_destroy()
487 kfree(x->calg); in ___xfrm_state_destroy()
488 kfree(x->encap); in ___xfrm_state_destroy()
489 kfree(x->coaddr); in ___xfrm_state_destroy()
490 kfree(x->replay_esn); in ___xfrm_state_destroy()
491 kfree(x->preplay_esn); in ___xfrm_state_destroy()
492 if (x->type_offload) in ___xfrm_state_destroy()
493 xfrm_put_type_offload(x->type_offload); in ___xfrm_state_destroy()
494 if (x->type) { in ___xfrm_state_destroy()
495 x->type->destructor(x); in ___xfrm_state_destroy()
496 xfrm_put_type(x->type); in ___xfrm_state_destroy()
498 if (x->xfrag.page) in ___xfrm_state_destroy()
499 put_page(x->xfrag.page); in ___xfrm_state_destroy()
500 xfrm_dev_state_free(x); in ___xfrm_state_destroy()
501 security_xfrm_state_free(x); in ___xfrm_state_destroy()
502 xfrm_state_free(x); in ___xfrm_state_destroy()
507 struct xfrm_state *x; in xfrm_state_gc_task() local
517 hlist_for_each_entry_safe(x, tmp, &gc_list, gclist) in xfrm_state_gc_task()
518 ___xfrm_state_destroy(x); in xfrm_state_gc_task()
523 struct xfrm_state *x = container_of(me, struct xfrm_state, mtimer); in xfrm_timer_handler() local
530 spin_lock(&x->lock); in xfrm_timer_handler()
531 if (x->km.state == XFRM_STATE_DEAD) in xfrm_timer_handler()
533 if (x->km.state == XFRM_STATE_EXPIRED) in xfrm_timer_handler()
535 if (x->lft.hard_add_expires_seconds) { in xfrm_timer_handler()
536 long tmo = x->lft.hard_add_expires_seconds + in xfrm_timer_handler()
537 x->curlft.add_time - now; in xfrm_timer_handler()
539 if (x->xflags & XFRM_SOFT_EXPIRE) { in xfrm_timer_handler()
544 x->curlft.add_time = now - x->saved_tmo - 1; in xfrm_timer_handler()
545 tmo = x->lft.hard_add_expires_seconds - x->saved_tmo; in xfrm_timer_handler()
552 if (x->lft.hard_use_expires_seconds) { in xfrm_timer_handler()
553 long tmo = x->lft.hard_use_expires_seconds + in xfrm_timer_handler()
554 (x->curlft.use_time ? : now) - now; in xfrm_timer_handler()
560 if (x->km.dying) in xfrm_timer_handler()
562 if (x->lft.soft_add_expires_seconds) { in xfrm_timer_handler()
563 long tmo = x->lft.soft_add_expires_seconds + in xfrm_timer_handler()
564 x->curlft.add_time - now; in xfrm_timer_handler()
567 x->xflags &= ~XFRM_SOFT_EXPIRE; in xfrm_timer_handler()
570 x->xflags |= XFRM_SOFT_EXPIRE; in xfrm_timer_handler()
571 x->saved_tmo = tmo; in xfrm_timer_handler()
574 if (x->lft.soft_use_expires_seconds) { in xfrm_timer_handler()
575 long tmo = x->lft.soft_use_expires_seconds + in xfrm_timer_handler()
576 (x->curlft.use_time ? : now) - now; in xfrm_timer_handler()
583 x->km.dying = warn; in xfrm_timer_handler()
585 km_state_expired(x, 0, 0); in xfrm_timer_handler()
588 hrtimer_forward_now(&x->mtimer, ktime_set(next, 0)); in xfrm_timer_handler()
595 if (x->km.state == XFRM_STATE_ACQ && x->id.spi == 0) in xfrm_timer_handler()
596 x->km.state = XFRM_STATE_EXPIRED; in xfrm_timer_handler()
598 err = __xfrm_state_delete(x); in xfrm_timer_handler()
600 km_state_expired(x, 1, 0); in xfrm_timer_handler()
602 xfrm_audit_state_delete(x, err ? 0 : 1, true); in xfrm_timer_handler()
605 spin_unlock(&x->lock); in xfrm_timer_handler()
613 struct xfrm_state *x; in xfrm_state_alloc() local
615 x = kmem_cache_alloc(xfrm_state_cache, GFP_ATOMIC | __GFP_ZERO); in xfrm_state_alloc()
617 if (x) { in xfrm_state_alloc()
618 write_pnet(&x->xs_net, net); in xfrm_state_alloc()
619 refcount_set(&x->refcnt, 1); in xfrm_state_alloc()
620 atomic_set(&x->tunnel_users, 0); in xfrm_state_alloc()
621 INIT_LIST_HEAD(&x->km.all); in xfrm_state_alloc()
622 INIT_HLIST_NODE(&x->bydst); in xfrm_state_alloc()
623 INIT_HLIST_NODE(&x->bysrc); in xfrm_state_alloc()
624 INIT_HLIST_NODE(&x->byspi); in xfrm_state_alloc()
625 hrtimer_init(&x->mtimer, CLOCK_BOOTTIME, HRTIMER_MODE_ABS_SOFT); in xfrm_state_alloc()
626 x->mtimer.function = xfrm_timer_handler; in xfrm_state_alloc()
627 timer_setup(&x->rtimer, xfrm_replay_timer_handler, 0); in xfrm_state_alloc()
628 x->curlft.add_time = ktime_get_real_seconds(); in xfrm_state_alloc()
629 x->lft.soft_byte_limit = XFRM_INF; in xfrm_state_alloc()
630 x->lft.soft_packet_limit = XFRM_INF; in xfrm_state_alloc()
631 x->lft.hard_byte_limit = XFRM_INF; in xfrm_state_alloc()
632 x->lft.hard_packet_limit = XFRM_INF; in xfrm_state_alloc()
633 x->replay_maxage = 0; in xfrm_state_alloc()
634 x->replay_maxdiff = 0; in xfrm_state_alloc()
635 spin_lock_init(&x->lock); in xfrm_state_alloc()
637 return x; in xfrm_state_alloc()
641 void __xfrm_state_destroy(struct xfrm_state *x, bool sync) in __xfrm_state_destroy() argument
643 WARN_ON(x->km.state != XFRM_STATE_DEAD); in __xfrm_state_destroy()
647 ___xfrm_state_destroy(x); in __xfrm_state_destroy()
650 hlist_add_head(&x->gclist, &xfrm_state_gc_list); in __xfrm_state_destroy()
657 int __xfrm_state_delete(struct xfrm_state *x) in __xfrm_state_delete() argument
659 struct net *net = xs_net(x); in __xfrm_state_delete()
662 if (x->km.state != XFRM_STATE_DEAD) { in __xfrm_state_delete()
663 x->km.state = XFRM_STATE_DEAD; in __xfrm_state_delete()
665 list_del(&x->km.all); in __xfrm_state_delete()
666 hlist_del_rcu(&x->bydst); in __xfrm_state_delete()
667 hlist_del_rcu(&x->bysrc); in __xfrm_state_delete()
668 if (x->id.spi) in __xfrm_state_delete()
669 hlist_del_rcu(&x->byspi); in __xfrm_state_delete()
673 xfrm_dev_state_delete(x); in __xfrm_state_delete()
679 xfrm_state_put(x); in __xfrm_state_delete()
687 int xfrm_state_delete(struct xfrm_state *x) in xfrm_state_delete() argument
691 spin_lock_bh(&x->lock); in xfrm_state_delete()
692 err = __xfrm_state_delete(x); in xfrm_state_delete()
693 spin_unlock_bh(&x->lock); in xfrm_state_delete()
706 struct xfrm_state *x; in xfrm_state_flush_secctx_check() local
708 hlist_for_each_entry(x, net->xfrm.state_bydst+i, bydst) { in xfrm_state_flush_secctx_check()
709 if (xfrm_id_proto_match(x->id.proto, proto) && in xfrm_state_flush_secctx_check()
710 (err = security_xfrm_state_delete(x)) != 0) { in xfrm_state_flush_secctx_check()
711 xfrm_audit_state_delete(x, 0, task_valid); in xfrm_state_flush_secctx_check()
726 struct xfrm_state *x; in xfrm_dev_state_flush_secctx_check() local
729 hlist_for_each_entry(x, net->xfrm.state_bydst+i, bydst) { in xfrm_dev_state_flush_secctx_check()
730 xso = &x->xso; in xfrm_dev_state_flush_secctx_check()
733 (err = security_xfrm_state_delete(x)) != 0) { in xfrm_dev_state_flush_secctx_check()
734 xfrm_audit_state_delete(x, 0, task_valid); in xfrm_dev_state_flush_secctx_check()
767 struct xfrm_state *x; in xfrm_state_flush() local
769 hlist_for_each_entry(x, net->xfrm.state_bydst+i, bydst) { in xfrm_state_flush()
770 if (!xfrm_state_kern(x) && in xfrm_state_flush()
771 xfrm_id_proto_match(x->id.proto, proto)) { in xfrm_state_flush()
772 xfrm_state_hold(x); in xfrm_state_flush()
775 err = xfrm_state_delete(x); in xfrm_state_flush()
776 xfrm_audit_state_delete(x, err ? 0 : 1, in xfrm_state_flush()
779 xfrm_state_put_sync(x); in xfrm_state_flush()
781 xfrm_state_put(x); in xfrm_state_flush()
810 struct xfrm_state *x; in xfrm_dev_state_flush() local
813 hlist_for_each_entry(x, net->xfrm.state_bydst+i, bydst) { in xfrm_dev_state_flush()
814 xso = &x->xso; in xfrm_dev_state_flush()
816 if (!xfrm_state_kern(x) && xso->dev == dev) { in xfrm_dev_state_flush()
817 xfrm_state_hold(x); in xfrm_dev_state_flush()
820 err = xfrm_state_delete(x); in xfrm_dev_state_flush()
821 xfrm_audit_state_delete(x, err ? 0 : 1, in xfrm_dev_state_flush()
823 xfrm_state_put(x); in xfrm_dev_state_flush()
889 xfrm_init_tempstate(struct xfrm_state *x, const struct flowi *fl, in xfrm_init_tempstate() argument
896 __xfrm4_init_tempsel(&x->sel, fl); in xfrm_init_tempstate()
899 __xfrm6_init_tempsel(&x->sel, fl); in xfrm_init_tempstate()
903 x->id = tmpl->id; in xfrm_init_tempstate()
907 if (x->id.daddr.a4 == 0) in xfrm_init_tempstate()
908 x->id.daddr.a4 = daddr->a4; in xfrm_init_tempstate()
909 x->props.saddr = tmpl->saddr; in xfrm_init_tempstate()
910 if (x->props.saddr.a4 == 0) in xfrm_init_tempstate()
911 x->props.saddr.a4 = saddr->a4; in xfrm_init_tempstate()
914 if (ipv6_addr_any((struct in6_addr *)&x->id.daddr)) in xfrm_init_tempstate()
915 memcpy(&x->id.daddr, daddr, sizeof(x->sel.daddr)); in xfrm_init_tempstate()
916 memcpy(&x->props.saddr, &tmpl->saddr, sizeof(x->props.saddr)); in xfrm_init_tempstate()
917 if (ipv6_addr_any((struct in6_addr *)&x->props.saddr)) in xfrm_init_tempstate()
918 memcpy(&x->props.saddr, saddr, sizeof(x->props.saddr)); in xfrm_init_tempstate()
922 x->props.mode = tmpl->mode; in xfrm_init_tempstate()
923 x->props.reqid = tmpl->reqid; in xfrm_init_tempstate()
924 x->props.family = tmpl->encap_family; in xfrm_init_tempstate()
933 struct xfrm_state *x; in __xfrm_state_lookup() local
935 hlist_for_each_entry_rcu(x, net->xfrm.state_byspi + h, byspi) { in __xfrm_state_lookup()
936 if (x->props.family != family || in __xfrm_state_lookup()
937 x->id.spi != spi || in __xfrm_state_lookup()
938 x->id.proto != proto || in __xfrm_state_lookup()
939 !xfrm_addr_equal(&x->id.daddr, daddr, family)) in __xfrm_state_lookup()
942 if ((mark & x->mark.m) != x->mark.v) in __xfrm_state_lookup()
944 if (!xfrm_state_hold_rcu(x)) in __xfrm_state_lookup()
946 return x; in __xfrm_state_lookup()
958 struct xfrm_state *x; in __xfrm_state_lookup_byaddr() local
960 hlist_for_each_entry_rcu(x, net->xfrm.state_bysrc + h, bysrc) { in __xfrm_state_lookup_byaddr()
961 if (x->props.family != family || in __xfrm_state_lookup_byaddr()
962 x->id.proto != proto || in __xfrm_state_lookup_byaddr()
963 !xfrm_addr_equal(&x->id.daddr, daddr, family) || in __xfrm_state_lookup_byaddr()
964 !xfrm_addr_equal(&x->props.saddr, saddr, family)) in __xfrm_state_lookup_byaddr()
967 if ((mark & x->mark.m) != x->mark.v) in __xfrm_state_lookup_byaddr()
969 if (!xfrm_state_hold_rcu(x)) in __xfrm_state_lookup_byaddr()
971 return x; in __xfrm_state_lookup_byaddr()
978 __xfrm_state_locate(struct xfrm_state *x, int use_spi, int family) in __xfrm_state_locate() argument
980 struct net *net = xs_net(x); in __xfrm_state_locate()
981 u32 mark = x->mark.v & x->mark.m; in __xfrm_state_locate()
984 return __xfrm_state_lookup(net, mark, &x->id.daddr, in __xfrm_state_locate()
985 x->id.spi, x->id.proto, family); in __xfrm_state_locate()
988 &x->id.daddr, in __xfrm_state_locate()
989 &x->props.saddr, in __xfrm_state_locate()
990 x->id.proto, family); in __xfrm_state_locate()
1001 static void xfrm_state_look_at(struct xfrm_policy *pol, struct xfrm_state *x, in xfrm_state_look_at() argument
1017 if (x->km.state == XFRM_STATE_VALID) { in xfrm_state_look_at()
1018 if ((x->sel.family && in xfrm_state_look_at()
1019 !xfrm_selector_match(&x->sel, fl, x->sel.family)) || in xfrm_state_look_at()
1020 !security_xfrm_state_pol_flow_match(x, pol, fl)) in xfrm_state_look_at()
1024 (*best)->km.dying > x->km.dying || in xfrm_state_look_at()
1025 ((*best)->km.dying == x->km.dying && in xfrm_state_look_at()
1026 (*best)->curlft.add_time < x->curlft.add_time)) in xfrm_state_look_at()
1027 *best = x; in xfrm_state_look_at()
1028 } else if (x->km.state == XFRM_STATE_ACQ) { in xfrm_state_look_at()
1030 } else if (x->km.state == XFRM_STATE_ERROR || in xfrm_state_look_at()
1031 x->km.state == XFRM_STATE_EXPIRED) { in xfrm_state_look_at()
1032 if (xfrm_selector_match(&x->sel, fl, x->sel.family) && in xfrm_state_look_at()
1033 security_xfrm_state_pol_flow_match(x, pol, fl)) in xfrm_state_look_at()
1047 struct xfrm_state *x, *x0, *to_put; in xfrm_state_find() local
1062 hlist_for_each_entry_rcu(x, net->xfrm.state_bydst + h, bydst) { in xfrm_state_find()
1063 if (x->props.family == encap_family && in xfrm_state_find()
1064 x->props.reqid == tmpl->reqid && in xfrm_state_find()
1065 (mark & x->mark.m) == x->mark.v && in xfrm_state_find()
1066 x->if_id == if_id && in xfrm_state_find()
1067 !(x->props.flags & XFRM_STATE_WILDRECV) && in xfrm_state_find()
1068 xfrm_state_addr_check(x, daddr, saddr, encap_family) && in xfrm_state_find()
1069 tmpl->mode == x->props.mode && in xfrm_state_find()
1070 tmpl->id.proto == x->id.proto && in xfrm_state_find()
1071 (tmpl->id.spi == x->id.spi || !tmpl->id.spi)) in xfrm_state_find()
1072 xfrm_state_look_at(pol, x, fl, encap_family, in xfrm_state_find()
1079 hlist_for_each_entry_rcu(x, net->xfrm.state_bydst + h_wildcard, bydst) { in xfrm_state_find()
1080 if (x->props.family == encap_family && in xfrm_state_find()
1081 x->props.reqid == tmpl->reqid && in xfrm_state_find()
1082 (mark & x->mark.m) == x->mark.v && in xfrm_state_find()
1083 x->if_id == if_id && in xfrm_state_find()
1084 !(x->props.flags & XFRM_STATE_WILDRECV) && in xfrm_state_find()
1085 xfrm_addr_equal(&x->id.daddr, daddr, encap_family) && in xfrm_state_find()
1086 tmpl->mode == x->props.mode && in xfrm_state_find()
1087 tmpl->id.proto == x->id.proto && in xfrm_state_find()
1088 (tmpl->id.spi == x->id.spi || !tmpl->id.spi)) in xfrm_state_find()
1089 xfrm_state_look_at(pol, x, fl, encap_family, in xfrm_state_find()
1094 x = best; in xfrm_state_find()
1095 if (!x && !error && !acquire_in_progress) { in xfrm_state_find()
1114 x = xfrm_state_alloc(net); in xfrm_state_find()
1115 if (x == NULL) { in xfrm_state_find()
1121 xfrm_init_tempstate(x, fl, tmpl, daddr, saddr, family); in xfrm_state_find()
1122 memcpy(&x->mark, &pol->mark, sizeof(x->mark)); in xfrm_state_find()
1123 x->if_id = if_id; in xfrm_state_find()
1125 error = security_xfrm_state_alloc_acquire(x, pol->security, fl->flowi_secid); in xfrm_state_find()
1127 x->km.state = XFRM_STATE_DEAD; in xfrm_state_find()
1128 to_put = x; in xfrm_state_find()
1129 x = NULL; in xfrm_state_find()
1133 if (km_query(x, tmpl, pol) == 0) { in xfrm_state_find()
1135 x->km.state = XFRM_STATE_ACQ; in xfrm_state_find()
1136 list_add(&x->km.all, &net->xfrm.state_all); in xfrm_state_find()
1137 hlist_add_head_rcu(&x->bydst, net->xfrm.state_bydst + h); in xfrm_state_find()
1139 hlist_add_head_rcu(&x->bysrc, net->xfrm.state_bysrc + h); in xfrm_state_find()
1140 if (x->id.spi) { in xfrm_state_find()
1141 h = xfrm_spi_hash(net, &x->id.daddr, x->id.spi, x->id.proto, encap_family); in xfrm_state_find()
1142 hlist_add_head_rcu(&x->byspi, net->xfrm.state_byspi + h); in xfrm_state_find()
1144 x->lft.hard_add_expires_seconds = net->xfrm.sysctl_acq_expires; in xfrm_state_find()
1145 hrtimer_start(&x->mtimer, in xfrm_state_find()
1149 xfrm_hash_grow_check(net, x->bydst.next != NULL); in xfrm_state_find()
1152 x->km.state = XFRM_STATE_DEAD; in xfrm_state_find()
1153 to_put = x; in xfrm_state_find()
1154 x = NULL; in xfrm_state_find()
1159 if (x) { in xfrm_state_find()
1160 if (!xfrm_state_hold_rcu(x)) { in xfrm_state_find()
1162 x = NULL; in xfrm_state_find()
1173 if (x) { in xfrm_state_find()
1174 xfrm_state_put(x); in xfrm_state_find()
1175 x = NULL; in xfrm_state_find()
1179 return x; in xfrm_state_find()
1188 struct xfrm_state *rx = NULL, *x = NULL; in xfrm_stateonly_find() local
1192 hlist_for_each_entry(x, net->xfrm.state_bydst+h, bydst) { in xfrm_stateonly_find()
1193 if (x->props.family == family && in xfrm_stateonly_find()
1194 x->props.reqid == reqid && in xfrm_stateonly_find()
1195 (mark & x->mark.m) == x->mark.v && in xfrm_stateonly_find()
1196 x->if_id == if_id && in xfrm_stateonly_find()
1197 !(x->props.flags & XFRM_STATE_WILDRECV) && in xfrm_stateonly_find()
1198 xfrm_state_addr_check(x, daddr, saddr, family) && in xfrm_stateonly_find()
1199 mode == x->props.mode && in xfrm_stateonly_find()
1200 proto == x->id.proto && in xfrm_stateonly_find()
1201 x->km.state == XFRM_STATE_VALID) { in xfrm_stateonly_find()
1202 rx = x; in xfrm_stateonly_find()
1219 struct xfrm_state *x; in xfrm_state_lookup_byspi() local
1224 x = container_of(w, struct xfrm_state, km); in xfrm_state_lookup_byspi()
1225 if (x->props.family != family || in xfrm_state_lookup_byspi()
1226 x->id.spi != spi) in xfrm_state_lookup_byspi()
1229 xfrm_state_hold(x); in xfrm_state_lookup_byspi()
1231 return x; in xfrm_state_lookup_byspi()
1238 static void __xfrm_state_insert(struct xfrm_state *x) in __xfrm_state_insert() argument
1240 struct net *net = xs_net(x); in __xfrm_state_insert()
1243 list_add(&x->km.all, &net->xfrm.state_all); in __xfrm_state_insert()
1245 h = xfrm_dst_hash(net, &x->id.daddr, &x->props.saddr, in __xfrm_state_insert()
1246 x->props.reqid, x->props.family); in __xfrm_state_insert()
1247 hlist_add_head_rcu(&x->bydst, net->xfrm.state_bydst + h); in __xfrm_state_insert()
1249 h = xfrm_src_hash(net, &x->id.daddr, &x->props.saddr, x->props.family); in __xfrm_state_insert()
1250 hlist_add_head_rcu(&x->bysrc, net->xfrm.state_bysrc + h); in __xfrm_state_insert()
1252 if (x->id.spi) { in __xfrm_state_insert()
1253 h = xfrm_spi_hash(net, &x->id.daddr, x->id.spi, x->id.proto, in __xfrm_state_insert()
1254 x->props.family); in __xfrm_state_insert()
1256 hlist_add_head_rcu(&x->byspi, net->xfrm.state_byspi + h); in __xfrm_state_insert()
1259 hrtimer_start(&x->mtimer, ktime_set(1, 0), HRTIMER_MODE_REL_SOFT); in __xfrm_state_insert()
1260 if (x->replay_maxage) in __xfrm_state_insert()
1261 mod_timer(&x->rtimer, jiffies + x->replay_maxage); in __xfrm_state_insert()
1265 xfrm_hash_grow_check(net, x->bydst.next != NULL); in __xfrm_state_insert()
1274 struct xfrm_state *x; in __xfrm_state_bump_genids() local
1280 hlist_for_each_entry(x, net->xfrm.state_bydst+h, bydst) { in __xfrm_state_bump_genids()
1281 if (x->props.family == family && in __xfrm_state_bump_genids()
1282 x->props.reqid == reqid && in __xfrm_state_bump_genids()
1283 x->if_id == if_id && in __xfrm_state_bump_genids()
1284 (mark & x->mark.m) == x->mark.v && in __xfrm_state_bump_genids()
1285 xfrm_addr_equal(&x->id.daddr, &xnew->id.daddr, family) && in __xfrm_state_bump_genids()
1286 xfrm_addr_equal(&x->props.saddr, &xnew->props.saddr, family)) in __xfrm_state_bump_genids()
1287 x->genid++; in __xfrm_state_bump_genids()
1291 void xfrm_state_insert(struct xfrm_state *x) in xfrm_state_insert() argument
1293 struct net *net = xs_net(x); in xfrm_state_insert()
1296 __xfrm_state_bump_genids(x); in xfrm_state_insert()
1297 __xfrm_state_insert(x); in xfrm_state_insert()
1312 struct xfrm_state *x; in __find_acq_core() local
1315 hlist_for_each_entry(x, net->xfrm.state_bydst+h, bydst) { in __find_acq_core()
1316 if (x->props.reqid != reqid || in __find_acq_core()
1317 x->props.mode != mode || in __find_acq_core()
1318 x->props.family != family || in __find_acq_core()
1319 x->km.state != XFRM_STATE_ACQ || in __find_acq_core()
1320 x->id.spi != 0 || in __find_acq_core()
1321 x->id.proto != proto || in __find_acq_core()
1322 (mark & x->mark.m) != x->mark.v || in __find_acq_core()
1323 !xfrm_addr_equal(&x->id.daddr, daddr, family) || in __find_acq_core()
1324 !xfrm_addr_equal(&x->props.saddr, saddr, family)) in __find_acq_core()
1327 xfrm_state_hold(x); in __find_acq_core()
1328 return x; in __find_acq_core()
1334 x = xfrm_state_alloc(net); in __find_acq_core()
1335 if (likely(x)) { in __find_acq_core()
1338 x->sel.daddr.a4 = daddr->a4; in __find_acq_core()
1339 x->sel.saddr.a4 = saddr->a4; in __find_acq_core()
1340 x->sel.prefixlen_d = 32; in __find_acq_core()
1341 x->sel.prefixlen_s = 32; in __find_acq_core()
1342 x->props.saddr.a4 = saddr->a4; in __find_acq_core()
1343 x->id.daddr.a4 = daddr->a4; in __find_acq_core()
1347 x->sel.daddr.in6 = daddr->in6; in __find_acq_core()
1348 x->sel.saddr.in6 = saddr->in6; in __find_acq_core()
1349 x->sel.prefixlen_d = 128; in __find_acq_core()
1350 x->sel.prefixlen_s = 128; in __find_acq_core()
1351 x->props.saddr.in6 = saddr->in6; in __find_acq_core()
1352 x->id.daddr.in6 = daddr->in6; in __find_acq_core()
1356 x->km.state = XFRM_STATE_ACQ; in __find_acq_core()
1357 x->id.proto = proto; in __find_acq_core()
1358 x->props.family = family; in __find_acq_core()
1359 x->props.mode = mode; in __find_acq_core()
1360 x->props.reqid = reqid; in __find_acq_core()
1361 x->if_id = if_id; in __find_acq_core()
1362 x->mark.v = m->v; in __find_acq_core()
1363 x->mark.m = m->m; in __find_acq_core()
1364 x->lft.hard_add_expires_seconds = net->xfrm.sysctl_acq_expires; in __find_acq_core()
1365 xfrm_state_hold(x); in __find_acq_core()
1366 hrtimer_start(&x->mtimer, in __find_acq_core()
1369 list_add(&x->km.all, &net->xfrm.state_all); in __find_acq_core()
1370 hlist_add_head_rcu(&x->bydst, net->xfrm.state_bydst + h); in __find_acq_core()
1372 hlist_add_head_rcu(&x->bysrc, net->xfrm.state_bysrc + h); in __find_acq_core()
1376 xfrm_hash_grow_check(net, x->bydst.next != NULL); in __find_acq_core()
1379 return x; in __find_acq_core()
1384 int xfrm_state_add(struct xfrm_state *x) in xfrm_state_add() argument
1386 struct net *net = xs_net(x); in xfrm_state_add()
1390 u32 mark = x->mark.v & x->mark.m; in xfrm_state_add()
1391 int use_spi = xfrm_id_proto_match(x->id.proto, IPSEC_PROTO_ANY); in xfrm_state_add()
1393 family = x->props.family; in xfrm_state_add()
1399 x1 = __xfrm_state_locate(x, use_spi, family); in xfrm_state_add()
1407 if (use_spi && x->km.seq) { in xfrm_state_add()
1408 x1 = __xfrm_find_acq_byseq(net, mark, x->km.seq); in xfrm_state_add()
1409 if (x1 && ((x1->id.proto != x->id.proto) || in xfrm_state_add()
1410 !xfrm_addr_equal(&x1->id.daddr, &x->id.daddr, family))) { in xfrm_state_add()
1417 x1 = __find_acq_core(net, &x->mark, family, x->props.mode, in xfrm_state_add()
1418 x->props.reqid, x->if_id, x->id.proto, in xfrm_state_add()
1419 &x->id.daddr, &x->props.saddr, 0); in xfrm_state_add()
1421 __xfrm_state_bump_genids(x); in xfrm_state_add()
1422 __xfrm_state_insert(x); in xfrm_state_add()
1445 struct xfrm_state *x = xfrm_state_alloc(net); in xfrm_state_clone() local
1446 if (!x) in xfrm_state_clone()
1449 memcpy(&x->id, &orig->id, sizeof(x->id)); in xfrm_state_clone()
1450 memcpy(&x->sel, &orig->sel, sizeof(x->sel)); in xfrm_state_clone()
1451 memcpy(&x->lft, &orig->lft, sizeof(x->lft)); in xfrm_state_clone()
1452 x->props.mode = orig->props.mode; in xfrm_state_clone()
1453 x->props.replay_window = orig->props.replay_window; in xfrm_state_clone()
1454 x->props.reqid = orig->props.reqid; in xfrm_state_clone()
1455 x->props.family = orig->props.family; in xfrm_state_clone()
1456 x->props.saddr = orig->props.saddr; in xfrm_state_clone()
1459 x->aalg = xfrm_algo_auth_clone(orig->aalg); in xfrm_state_clone()
1460 if (!x->aalg) in xfrm_state_clone()
1463 x->props.aalgo = orig->props.aalgo; in xfrm_state_clone()
1466 x->aead = xfrm_algo_aead_clone(orig->aead); in xfrm_state_clone()
1467 x->geniv = orig->geniv; in xfrm_state_clone()
1468 if (!x->aead) in xfrm_state_clone()
1472 x->ealg = xfrm_algo_clone(orig->ealg); in xfrm_state_clone()
1473 if (!x->ealg) in xfrm_state_clone()
1476 x->props.ealgo = orig->props.ealgo; in xfrm_state_clone()
1479 x->calg = xfrm_algo_clone(orig->calg); in xfrm_state_clone()
1480 if (!x->calg) in xfrm_state_clone()
1483 x->props.calgo = orig->props.calgo; in xfrm_state_clone()
1487 x->encap = kmemdup(encap, sizeof(*x->encap), in xfrm_state_clone()
1490 x->encap = kmemdup(orig->encap, sizeof(*x->encap), in xfrm_state_clone()
1493 if (!x->encap) in xfrm_state_clone()
1498 x->coaddr = kmemdup(orig->coaddr, sizeof(*x->coaddr), in xfrm_state_clone()
1500 if (!x->coaddr) in xfrm_state_clone()
1505 if (xfrm_replay_clone(x, orig)) in xfrm_state_clone()
1509 memcpy(&x->mark, &orig->mark, sizeof(x->mark)); in xfrm_state_clone()
1511 if (xfrm_init_state(x) < 0) in xfrm_state_clone()
1514 x->props.flags = orig->props.flags; in xfrm_state_clone()
1515 x->props.extra_flags = orig->props.extra_flags; in xfrm_state_clone()
1517 x->if_id = orig->if_id; in xfrm_state_clone()
1518 x->tfcpad = orig->tfcpad; in xfrm_state_clone()
1519 x->replay_maxdiff = orig->replay_maxdiff; in xfrm_state_clone()
1520 x->replay_maxage = orig->replay_maxage; in xfrm_state_clone()
1521 x->curlft.add_time = orig->curlft.add_time; in xfrm_state_clone()
1522 x->km.state = orig->km.state; in xfrm_state_clone()
1523 x->km.seq = orig->km.seq; in xfrm_state_clone()
1524 x->replay = orig->replay; in xfrm_state_clone()
1525 x->preplay = orig->preplay; in xfrm_state_clone()
1527 return x; in xfrm_state_clone()
1530 xfrm_state_put(x); in xfrm_state_clone()
1538 struct xfrm_state *x = NULL; in xfrm_migrate_state_find() local
1545 hlist_for_each_entry(x, net->xfrm.state_bydst+h, bydst) { in xfrm_migrate_state_find()
1546 if (x->props.mode != m->mode || in xfrm_migrate_state_find()
1547 x->id.proto != m->proto) in xfrm_migrate_state_find()
1549 if (m->reqid && x->props.reqid != m->reqid) in xfrm_migrate_state_find()
1551 if (!xfrm_addr_equal(&x->id.daddr, &m->old_daddr, in xfrm_migrate_state_find()
1553 !xfrm_addr_equal(&x->props.saddr, &m->old_saddr, in xfrm_migrate_state_find()
1556 xfrm_state_hold(x); in xfrm_migrate_state_find()
1562 hlist_for_each_entry(x, net->xfrm.state_bysrc+h, bysrc) { in xfrm_migrate_state_find()
1563 if (x->props.mode != m->mode || in xfrm_migrate_state_find()
1564 x->id.proto != m->proto) in xfrm_migrate_state_find()
1566 if (!xfrm_addr_equal(&x->id.daddr, &m->old_daddr, in xfrm_migrate_state_find()
1568 !xfrm_addr_equal(&x->props.saddr, &m->old_saddr, in xfrm_migrate_state_find()
1571 xfrm_state_hold(x); in xfrm_migrate_state_find()
1578 return x; in xfrm_migrate_state_find()
1582 struct xfrm_state *xfrm_state_migrate(struct xfrm_state *x, in xfrm_state_migrate() argument
1588 xc = xfrm_state_clone(x, encap); in xfrm_state_migrate()
1596 if (xfrm_addr_equal(&x->id.daddr, &m->new_daddr, m->new_family)) { in xfrm_state_migrate()
1613 int xfrm_state_update(struct xfrm_state *x) in xfrm_state_update() argument
1617 int use_spi = xfrm_id_proto_match(x->id.proto, IPSEC_PROTO_ANY); in xfrm_state_update()
1618 struct net *net = xs_net(x); in xfrm_state_update()
1623 x1 = __xfrm_state_locate(x, use_spi, x->props.family); in xfrm_state_update()
1636 __xfrm_state_insert(x); in xfrm_state_update()
1637 x = NULL; in xfrm_state_update()
1650 if (!x) { in xfrm_state_update()
1659 if (x->encap && x1->encap && in xfrm_state_update()
1660 x->encap->encap_type == x1->encap->encap_type) in xfrm_state_update()
1661 memcpy(x1->encap, x->encap, sizeof(*x1->encap)); in xfrm_state_update()
1662 else if (x->encap || x1->encap) in xfrm_state_update()
1665 if (x->coaddr && x1->coaddr) { in xfrm_state_update()
1666 memcpy(x1->coaddr, x->coaddr, sizeof(*x1->coaddr)); in xfrm_state_update()
1668 if (!use_spi && memcmp(&x1->sel, &x->sel, sizeof(x1->sel))) in xfrm_state_update()
1669 memcpy(&x1->sel, &x->sel, sizeof(x1->sel)); in xfrm_state_update()
1670 memcpy(&x1->lft, &x->lft, sizeof(x1->lft)); in xfrm_state_update()
1678 if (x->props.smark.m || x->props.smark.v || x->if_id) { in xfrm_state_update()
1681 if (x->props.smark.m || x->props.smark.v) in xfrm_state_update()
1682 x1->props.smark = x->props.smark; in xfrm_state_update()
1684 if (x->if_id) in xfrm_state_update()
1685 x1->if_id = x->if_id; in xfrm_state_update()
1692 x->km.state = XFRM_STATE_DEAD; in xfrm_state_update()
1693 __xfrm_state_put(x); in xfrm_state_update()
1705 int xfrm_state_check_expire(struct xfrm_state *x) in xfrm_state_check_expire() argument
1707 if (!x->curlft.use_time) in xfrm_state_check_expire()
1708 x->curlft.use_time = ktime_get_real_seconds(); in xfrm_state_check_expire()
1710 if (x->curlft.bytes >= x->lft.hard_byte_limit || in xfrm_state_check_expire()
1711 x->curlft.packets >= x->lft.hard_packet_limit) { in xfrm_state_check_expire()
1712 x->km.state = XFRM_STATE_EXPIRED; in xfrm_state_check_expire()
1713 hrtimer_start(&x->mtimer, 0, HRTIMER_MODE_REL_SOFT); in xfrm_state_check_expire()
1717 if (!x->km.dying && in xfrm_state_check_expire()
1718 (x->curlft.bytes >= x->lft.soft_byte_limit || in xfrm_state_check_expire()
1719 x->curlft.packets >= x->lft.soft_packet_limit)) { in xfrm_state_check_expire()
1720 x->km.dying = 1; in xfrm_state_check_expire()
1721 km_state_expired(x, 0, 0); in xfrm_state_check_expire()
1731 struct xfrm_state *x; in xfrm_state_lookup() local
1734 x = __xfrm_state_lookup(net, mark, daddr, spi, proto, family); in xfrm_state_lookup()
1736 return x; in xfrm_state_lookup()
1745 struct xfrm_state *x; in xfrm_state_lookup_byaddr() local
1748 x = __xfrm_state_lookup_byaddr(net, mark, daddr, saddr, proto, family); in xfrm_state_lookup_byaddr()
1750 return x; in xfrm_state_lookup_byaddr()
1759 struct xfrm_state *x; in xfrm_find_acq() local
1762 x = __find_acq_core(net, mark, family, mode, reqid, if_id, proto, daddr, saddr, create); in xfrm_find_acq()
1765 return x; in xfrm_find_acq()
1902 struct xfrm_state *x; in __xfrm_find_acq_byseq() local
1904 hlist_for_each_entry(x, net->xfrm.state_bydst+i, bydst) { in __xfrm_find_acq_byseq()
1905 if (x->km.seq == seq && in __xfrm_find_acq_byseq()
1906 (mark & x->mark.m) == x->mark.v && in __xfrm_find_acq_byseq()
1907 x->km.state == XFRM_STATE_ACQ) { in __xfrm_find_acq_byseq()
1908 xfrm_state_hold(x); in __xfrm_find_acq_byseq()
1909 return x; in __xfrm_find_acq_byseq()
1918 struct xfrm_state *x; in xfrm_find_acq_byseq() local
1921 x = __xfrm_find_acq_byseq(net, mark, seq); in xfrm_find_acq_byseq()
1923 return x; in xfrm_find_acq_byseq()
1964 int xfrm_alloc_spi(struct xfrm_state *x, u32 low, u32 high) in xfrm_alloc_spi() argument
1966 struct net *net = xs_net(x); in xfrm_alloc_spi()
1972 u32 mark = x->mark.v & x->mark.m; in xfrm_alloc_spi()
1974 spin_lock_bh(&x->lock); in xfrm_alloc_spi()
1975 if (x->km.state == XFRM_STATE_DEAD) in xfrm_alloc_spi()
1979 if (x->id.spi) in xfrm_alloc_spi()
1985 x0 = xfrm_state_lookup(net, mark, &x->id.daddr, minspi, x->id.proto, x->props.family); in xfrm_alloc_spi()
1990 x->id.spi = minspi; in xfrm_alloc_spi()
1995 x0 = xfrm_state_lookup(net, mark, &x->id.daddr, htonl(spi), x->id.proto, x->props.family); in xfrm_alloc_spi()
1997 x->id.spi = htonl(spi); in xfrm_alloc_spi()
2003 if (x->id.spi) { in xfrm_alloc_spi()
2005 h = xfrm_spi_hash(net, &x->id.daddr, x->id.spi, x->id.proto, x->props.family); in xfrm_alloc_spi()
2006 hlist_add_head_rcu(&x->byspi, net->xfrm.state_byspi + h); in xfrm_alloc_spi()
2013 spin_unlock_bh(&x->lock); in xfrm_alloc_spi()
2019 static bool __xfrm_state_filter_match(struct xfrm_state *x, in __xfrm_state_filter_match() argument
2025 x->props.family != filter->family) in __xfrm_state_filter_match()
2028 return addr_match(&x->props.saddr, &filter->saddr, in __xfrm_state_filter_match()
2030 addr_match(&x->id.daddr, &filter->daddr, in __xfrm_state_filter_match()
2041 struct xfrm_state_walk *x; in xfrm_state_walk() local
2049 x = list_first_entry(&net->xfrm.state_all, struct xfrm_state_walk, all); in xfrm_state_walk()
2051 x = list_first_entry(&walk->all, struct xfrm_state_walk, all); in xfrm_state_walk()
2052 list_for_each_entry_from(x, &net->xfrm.state_all, all) { in xfrm_state_walk()
2053 if (x->state == XFRM_STATE_DEAD) in xfrm_state_walk()
2055 state = container_of(x, struct xfrm_state, km); in xfrm_state_walk()
2062 list_move_tail(&walk->all, &x->all); in xfrm_state_walk()
2104 struct xfrm_state *x = from_timer(x, t, rtimer); in xfrm_replay_timer_handler() local
2106 spin_lock(&x->lock); in xfrm_replay_timer_handler()
2108 if (x->km.state == XFRM_STATE_VALID) { in xfrm_replay_timer_handler()
2109 if (xfrm_aevent_is_on(xs_net(x))) in xfrm_replay_timer_handler()
2110 x->repl->notify(x, XFRM_REPLAY_TIMEOUT); in xfrm_replay_timer_handler()
2112 x->xflags |= XFRM_TIME_DEFER; in xfrm_replay_timer_handler()
2115 spin_unlock(&x->lock); in xfrm_replay_timer_handler()
2131 void km_state_notify(struct xfrm_state *x, const struct km_event *c) in km_state_notify() argument
2137 km->notify(x, c); in km_state_notify()
2144 void km_state_expired(struct xfrm_state *x, int hard, u32 portid) in km_state_expired() argument
2151 km_state_notify(x, &c); in km_state_expired()
2159 int km_query(struct xfrm_state *x, struct xfrm_tmpl *t, struct xfrm_policy *pol) in km_query() argument
2166 acqret = km->acquire(x, t, pol); in km_query()
2175 int km_new_mapping(struct xfrm_state *x, xfrm_address_t *ipaddr, __be16 sport) in km_new_mapping() argument
2183 err = km->new_mapping(x, ipaddr, sport); in km_new_mapping()
2393 void xfrm_state_delete_tunnel(struct xfrm_state *x) in xfrm_state_delete_tunnel() argument
2395 if (x->tunnel) { in xfrm_state_delete_tunnel()
2396 struct xfrm_state *t = x->tunnel; in xfrm_state_delete_tunnel()
2402 x->tunnel = NULL; in xfrm_state_delete_tunnel()
2407 u32 xfrm_state_mtu(struct xfrm_state *x, int mtu) in xfrm_state_mtu() argument
2409 const struct xfrm_type *type = READ_ONCE(x->type); in xfrm_state_mtu()
2413 if (x->km.state != XFRM_STATE_VALID || in xfrm_state_mtu()
2415 return mtu - x->props.header_len; in xfrm_state_mtu()
2417 aead = x->data; in xfrm_state_mtu()
2420 switch (x->props.mode) { in xfrm_state_mtu()
2423 if (x->props.family == AF_INET) in xfrm_state_mtu()
2425 else if (x->props.family == AF_INET6) in xfrm_state_mtu()
2435 return ((mtu - x->props.header_len - crypto_aead_authsize(aead) - in xfrm_state_mtu()
2440 int __xfrm_init_state(struct xfrm_state *x, bool init_replay, bool offload) in __xfrm_init_state() argument
2444 int family = x->props.family; in __xfrm_init_state()
2448 xs_net(x)->ipv4.sysctl_ip_no_pmtu_disc) in __xfrm_init_state()
2449 x->props.flags |= XFRM_STATE_NOPMTUDISC; in __xfrm_init_state()
2453 if (x->sel.family != AF_UNSPEC) { in __xfrm_init_state()
2454 inner_mode = xfrm_get_mode(x->props.mode, x->sel.family); in __xfrm_init_state()
2459 family != x->sel.family) in __xfrm_init_state()
2462 x->inner_mode = *inner_mode; in __xfrm_init_state()
2467 inner_mode = xfrm_get_mode(x->props.mode, x->props.family); in __xfrm_init_state()
2474 x->inner_mode = *inner_mode; in __xfrm_init_state()
2476 if (x->props.family == AF_INET) in __xfrm_init_state()
2479 inner_mode_iaf = xfrm_get_mode(x->props.mode, iafamily); in __xfrm_init_state()
2482 x->inner_mode_iaf = *inner_mode_iaf; in __xfrm_init_state()
2486 x->type = xfrm_get_type(x->id.proto, family); in __xfrm_init_state()
2487 if (x->type == NULL) in __xfrm_init_state()
2490 x->type_offload = xfrm_get_type_offload(x->id.proto, family, offload); in __xfrm_init_state()
2492 err = x->type->init_state(x); in __xfrm_init_state()
2496 outer_mode = xfrm_get_mode(x->props.mode, family); in __xfrm_init_state()
2502 x->outer_mode = *outer_mode; in __xfrm_init_state()
2504 err = xfrm_init_replay(x); in __xfrm_init_state()
2515 int xfrm_init_state(struct xfrm_state *x) in xfrm_init_state() argument
2519 err = __xfrm_init_state(x, true, false); in xfrm_init_state()
2521 x->km.state = XFRM_STATE_VALID; in xfrm_init_state()
2584 static void xfrm_audit_helper_sainfo(struct xfrm_state *x, in xfrm_audit_helper_sainfo() argument
2587 struct xfrm_sec_ctx *ctx = x->security; in xfrm_audit_helper_sainfo()
2588 u32 spi = ntohl(x->id.spi); in xfrm_audit_helper_sainfo()
2594 switch (x->props.family) { in xfrm_audit_helper_sainfo()
2597 &x->props.saddr.a4, &x->id.daddr.a4); in xfrm_audit_helper_sainfo()
2601 x->props.saddr.a6, x->id.daddr.a6); in xfrm_audit_helper_sainfo()
2632 void xfrm_audit_state_add(struct xfrm_state *x, int result, bool task_valid) in xfrm_audit_state_add() argument
2640 xfrm_audit_helper_sainfo(x, audit_buf); in xfrm_audit_state_add()
2646 void xfrm_audit_state_delete(struct xfrm_state *x, int result, bool task_valid) in xfrm_audit_state_delete() argument
2654 xfrm_audit_helper_sainfo(x, audit_buf); in xfrm_audit_state_delete()
2660 void xfrm_audit_state_replay_overflow(struct xfrm_state *x, in xfrm_audit_state_replay_overflow() argument
2669 xfrm_audit_helper_pktinfo(skb, x->props.family, audit_buf); in xfrm_audit_state_replay_overflow()
2672 spi = ntohl(x->id.spi); in xfrm_audit_state_replay_overflow()
2678 void xfrm_audit_state_replay(struct xfrm_state *x, in xfrm_audit_state_replay() argument
2687 xfrm_audit_helper_pktinfo(skb, x->props.family, audit_buf); in xfrm_audit_state_replay()
2688 spi = ntohl(x->id.spi); in xfrm_audit_state_replay()
2724 void xfrm_audit_state_icvfail(struct xfrm_state *x, in xfrm_audit_state_icvfail() argument
2734 xfrm_audit_helper_pktinfo(skb, x->props.family, audit_buf); in xfrm_audit_state_icvfail()