| File: | src/usr.sbin/eigrpd/interface.c |
| Warning: | line 240, column 7 Use of memory after it is freed |
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| 1 | /* $OpenBSD: interface.c,v 1.25 2019/06/28 13:32:47 deraadt Exp $ */ | |||
| 2 | ||||
| 3 | /* | |||
| 4 | * Copyright (c) 2015 Renato Westphal <renato@openbsd.org> | |||
| 5 | * Copyright (c) 2005 Claudio Jeker <claudio@openbsd.org> | |||
| 6 | * Copyright (c) 2004, 2005 Esben Norby <norby@openbsd.org> | |||
| 7 | * | |||
| 8 | * Permission to use, copy, modify, and distribute this software for any | |||
| 9 | * purpose with or without fee is hereby granted, provided that the above | |||
| 10 | * copyright notice and this permission notice appear in all copies. | |||
| 11 | * | |||
| 12 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES | |||
| 13 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF | |||
| 14 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR | |||
| 15 | * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES | |||
| 16 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN | |||
| 17 | * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF | |||
| 18 | * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. | |||
| 19 | */ | |||
| 20 | ||||
| 21 | #include <sys/types.h> | |||
| 22 | #include <sys/socket.h> | |||
| 23 | #include <sys/ioctl.h> | |||
| 24 | #include <arpa/inet.h> | |||
| 25 | ||||
| 26 | #include <ctype.h> | |||
| 27 | #include <stdlib.h> | |||
| 28 | #include <string.h> | |||
| 29 | #include <unistd.h> | |||
| 30 | ||||
| 31 | #include "eigrpd.h" | |||
| 32 | #include "eigrpe.h" | |||
| 33 | #include "log.h" | |||
| 34 | ||||
| 35 | static __inline int iface_id_compare(struct eigrp_iface *, | |||
| 36 | struct eigrp_iface *); | |||
| 37 | static struct iface *if_new(struct eigrpd_conf *, struct kif *); | |||
| 38 | static void if_del(struct iface *); | |||
| 39 | static struct if_addr *if_addr_lookup(struct if_addr_head *, struct kaddr *); | |||
| 40 | static void eigrp_if_start(struct eigrp_iface *); | |||
| 41 | static void eigrp_if_reset(struct eigrp_iface *); | |||
| 42 | static void eigrp_if_hello_timer(int, short, void *); | |||
| 43 | static void eigrp_if_start_hello_timer(struct eigrp_iface *); | |||
| 44 | static void eigrp_if_stop_hello_timer(struct eigrp_iface *); | |||
| 45 | static int if_join_ipv4_group(struct iface *, struct in_addr *); | |||
| 46 | static int if_leave_ipv4_group(struct iface *, struct in_addr *); | |||
| 47 | static int if_join_ipv6_group(struct iface *, struct in6_addr *); | |||
| 48 | static int if_leave_ipv6_group(struct iface *, struct in6_addr *); | |||
| 49 | ||||
| 50 | RB_GENERATE(iface_id_head, eigrp_iface, id_tree, iface_id_compare)void iface_id_head_RB_INSERT_COLOR(struct iface_id_head *head , struct eigrp_iface *elm) { struct eigrp_iface *parent, *gparent , *tmp; while ((parent = (elm)->id_tree.rbe_parent) && (parent)->id_tree.rbe_color == 1) { gparent = (parent)-> id_tree.rbe_parent; if (parent == (gparent)->id_tree.rbe_left ) { tmp = (gparent)->id_tree.rbe_right; if (tmp && (tmp)->id_tree.rbe_color == 1) { (tmp)->id_tree.rbe_color = 0; do { (parent)->id_tree.rbe_color = 0; (gparent)-> id_tree.rbe_color = 1; } while (0); elm = gparent; continue; } if ((parent)->id_tree.rbe_right == elm) { do { (tmp) = (parent )->id_tree.rbe_right; if (((parent)->id_tree.rbe_right = (tmp)->id_tree.rbe_left)) { ((tmp)->id_tree.rbe_left)-> id_tree.rbe_parent = (parent); } do {} while (0); if (((tmp)-> id_tree.rbe_parent = (parent)->id_tree.rbe_parent)) { if ( (parent) == ((parent)->id_tree.rbe_parent)->id_tree.rbe_left ) ((parent)->id_tree.rbe_parent)->id_tree.rbe_left = (tmp ); else ((parent)->id_tree.rbe_parent)->id_tree.rbe_right = (tmp); } else (head)->rbh_root = (tmp); (tmp)->id_tree .rbe_left = (parent); (parent)->id_tree.rbe_parent = (tmp) ; do {} while (0); if (((tmp)->id_tree.rbe_parent)) do {} while (0); } while (0); tmp = parent; parent = elm; elm = tmp; } do { (parent)->id_tree.rbe_color = 0; (gparent)->id_tree. rbe_color = 1; } while (0); do { (tmp) = (gparent)->id_tree .rbe_left; if (((gparent)->id_tree.rbe_left = (tmp)->id_tree .rbe_right)) { ((tmp)->id_tree.rbe_right)->id_tree.rbe_parent = (gparent); } do {} while (0); if (((tmp)->id_tree.rbe_parent = (gparent)->id_tree.rbe_parent)) { if ((gparent) == ((gparent )->id_tree.rbe_parent)->id_tree.rbe_left) ((gparent)-> id_tree.rbe_parent)->id_tree.rbe_left = (tmp); else ((gparent )->id_tree.rbe_parent)->id_tree.rbe_right = (tmp); } else (head)->rbh_root = (tmp); (tmp)->id_tree.rbe_right = ( gparent); (gparent)->id_tree.rbe_parent = (tmp); do {} while (0); if (((tmp)->id_tree.rbe_parent)) do {} while (0); } while (0); } else { tmp = (gparent)->id_tree.rbe_left; if (tmp && (tmp)->id_tree.rbe_color == 1) { (tmp)->id_tree.rbe_color = 0; do { (parent)->id_tree.rbe_color = 0; (gparent)-> id_tree.rbe_color = 1; } while (0); elm = gparent; continue; } if ((parent)->id_tree.rbe_left == elm) { do { (tmp) = (parent )->id_tree.rbe_left; if (((parent)->id_tree.rbe_left = ( tmp)->id_tree.rbe_right)) { ((tmp)->id_tree.rbe_right)-> id_tree.rbe_parent = (parent); } do {} while (0); if (((tmp)-> id_tree.rbe_parent = (parent)->id_tree.rbe_parent)) { if ( (parent) == ((parent)->id_tree.rbe_parent)->id_tree.rbe_left ) ((parent)->id_tree.rbe_parent)->id_tree.rbe_left = (tmp ); else ((parent)->id_tree.rbe_parent)->id_tree.rbe_right = (tmp); } else (head)->rbh_root = (tmp); (tmp)->id_tree .rbe_right = (parent); (parent)->id_tree.rbe_parent = (tmp ); do {} while (0); if (((tmp)->id_tree.rbe_parent)) do {} while (0); } while (0); tmp = parent; parent = elm; elm = tmp ; } do { (parent)->id_tree.rbe_color = 0; (gparent)->id_tree .rbe_color = 1; } while (0); do { (tmp) = (gparent)->id_tree .rbe_right; if (((gparent)->id_tree.rbe_right = (tmp)-> id_tree.rbe_left)) { ((tmp)->id_tree.rbe_left)->id_tree .rbe_parent = (gparent); } do {} while (0); if (((tmp)->id_tree .rbe_parent = (gparent)->id_tree.rbe_parent)) { if ((gparent ) == ((gparent)->id_tree.rbe_parent)->id_tree.rbe_left) ((gparent)->id_tree.rbe_parent)->id_tree.rbe_left = (tmp ); else ((gparent)->id_tree.rbe_parent)->id_tree.rbe_right = (tmp); } else (head)->rbh_root = (tmp); (tmp)->id_tree .rbe_left = (gparent); (gparent)->id_tree.rbe_parent = (tmp ); do {} while (0); if (((tmp)->id_tree.rbe_parent)) do {} while (0); } while (0); } } (head->rbh_root)->id_tree. rbe_color = 0; } void iface_id_head_RB_REMOVE_COLOR(struct iface_id_head *head, struct eigrp_iface *parent, struct eigrp_iface *elm) { struct eigrp_iface *tmp; while ((elm == ((void *)0) || (elm) ->id_tree.rbe_color == 0) && elm != (head)->rbh_root ) { if ((parent)->id_tree.rbe_left == elm) { tmp = (parent )->id_tree.rbe_right; if ((tmp)->id_tree.rbe_color == 1 ) { do { (tmp)->id_tree.rbe_color = 0; (parent)->id_tree .rbe_color = 1; } while (0); do { (tmp) = (parent)->id_tree .rbe_right; if (((parent)->id_tree.rbe_right = (tmp)->id_tree .rbe_left)) { ((tmp)->id_tree.rbe_left)->id_tree.rbe_parent = (parent); } do {} while (0); if (((tmp)->id_tree.rbe_parent = (parent)->id_tree.rbe_parent)) { if ((parent) == ((parent )->id_tree.rbe_parent)->id_tree.rbe_left) ((parent)-> id_tree.rbe_parent)->id_tree.rbe_left = (tmp); else ((parent )->id_tree.rbe_parent)->id_tree.rbe_right = (tmp); } else (head)->rbh_root = (tmp); (tmp)->id_tree.rbe_left = (parent ); (parent)->id_tree.rbe_parent = (tmp); do {} while (0); if (((tmp)->id_tree.rbe_parent)) do {} while (0); } while (0 ); tmp = (parent)->id_tree.rbe_right; } if (((tmp)->id_tree .rbe_left == ((void *)0) || ((tmp)->id_tree.rbe_left)-> id_tree.rbe_color == 0) && ((tmp)->id_tree.rbe_right == ((void *)0) || ((tmp)->id_tree.rbe_right)->id_tree. rbe_color == 0)) { (tmp)->id_tree.rbe_color = 1; elm = parent ; parent = (elm)->id_tree.rbe_parent; } else { if ((tmp)-> id_tree.rbe_right == ((void *)0) || ((tmp)->id_tree.rbe_right )->id_tree.rbe_color == 0) { struct eigrp_iface *oleft; if ((oleft = (tmp)->id_tree.rbe_left)) (oleft)->id_tree.rbe_color = 0; (tmp)->id_tree.rbe_color = 1; do { (oleft) = (tmp)-> id_tree.rbe_left; if (((tmp)->id_tree.rbe_left = (oleft)-> id_tree.rbe_right)) { ((oleft)->id_tree.rbe_right)->id_tree .rbe_parent = (tmp); } do {} while (0); if (((oleft)->id_tree .rbe_parent = (tmp)->id_tree.rbe_parent)) { if ((tmp) == ( (tmp)->id_tree.rbe_parent)->id_tree.rbe_left) ((tmp)-> id_tree.rbe_parent)->id_tree.rbe_left = (oleft); else ((tmp )->id_tree.rbe_parent)->id_tree.rbe_right = (oleft); } else (head)->rbh_root = (oleft); (oleft)->id_tree.rbe_right = (tmp); (tmp)->id_tree.rbe_parent = (oleft); do {} while (0); if (((oleft)->id_tree.rbe_parent)) do {} while (0); } while (0); tmp = (parent)->id_tree.rbe_right; } (tmp)-> id_tree.rbe_color = (parent)->id_tree.rbe_color; (parent)-> id_tree.rbe_color = 0; if ((tmp)->id_tree.rbe_right) ((tmp )->id_tree.rbe_right)->id_tree.rbe_color = 0; do { (tmp ) = (parent)->id_tree.rbe_right; if (((parent)->id_tree .rbe_right = (tmp)->id_tree.rbe_left)) { ((tmp)->id_tree .rbe_left)->id_tree.rbe_parent = (parent); } do {} while ( 0); if (((tmp)->id_tree.rbe_parent = (parent)->id_tree. rbe_parent)) { if ((parent) == ((parent)->id_tree.rbe_parent )->id_tree.rbe_left) ((parent)->id_tree.rbe_parent)-> id_tree.rbe_left = (tmp); else ((parent)->id_tree.rbe_parent )->id_tree.rbe_right = (tmp); } else (head)->rbh_root = (tmp); (tmp)->id_tree.rbe_left = (parent); (parent)->id_tree .rbe_parent = (tmp); do {} while (0); if (((tmp)->id_tree. rbe_parent)) do {} while (0); } while (0); elm = (head)->rbh_root ; break; } } else { tmp = (parent)->id_tree.rbe_left; if ( (tmp)->id_tree.rbe_color == 1) { do { (tmp)->id_tree.rbe_color = 0; (parent)->id_tree.rbe_color = 1; } while (0); do { ( tmp) = (parent)->id_tree.rbe_left; if (((parent)->id_tree .rbe_left = (tmp)->id_tree.rbe_right)) { ((tmp)->id_tree .rbe_right)->id_tree.rbe_parent = (parent); } do {} while ( 0); if (((tmp)->id_tree.rbe_parent = (parent)->id_tree. rbe_parent)) { if ((parent) == ((parent)->id_tree.rbe_parent )->id_tree.rbe_left) ((parent)->id_tree.rbe_parent)-> id_tree.rbe_left = (tmp); else ((parent)->id_tree.rbe_parent )->id_tree.rbe_right = (tmp); } else (head)->rbh_root = (tmp); (tmp)->id_tree.rbe_right = (parent); (parent)-> id_tree.rbe_parent = (tmp); do {} while (0); if (((tmp)->id_tree .rbe_parent)) do {} while (0); } while (0); tmp = (parent)-> id_tree.rbe_left; } if (((tmp)->id_tree.rbe_left == ((void *)0) || ((tmp)->id_tree.rbe_left)->id_tree.rbe_color == 0) && ((tmp)->id_tree.rbe_right == ((void *)0) || ((tmp)->id_tree.rbe_right)->id_tree.rbe_color == 0)) { (tmp)->id_tree.rbe_color = 1; elm = parent; parent = (elm )->id_tree.rbe_parent; } else { if ((tmp)->id_tree.rbe_left == ((void *)0) || ((tmp)->id_tree.rbe_left)->id_tree.rbe_color == 0) { struct eigrp_iface *oright; if ((oright = (tmp)-> id_tree.rbe_right)) (oright)->id_tree.rbe_color = 0; (tmp) ->id_tree.rbe_color = 1; do { (oright) = (tmp)->id_tree .rbe_right; if (((tmp)->id_tree.rbe_right = (oright)->id_tree .rbe_left)) { ((oright)->id_tree.rbe_left)->id_tree.rbe_parent = (tmp); } do {} while (0); if (((oright)->id_tree.rbe_parent = (tmp)->id_tree.rbe_parent)) { if ((tmp) == ((tmp)->id_tree .rbe_parent)->id_tree.rbe_left) ((tmp)->id_tree.rbe_parent )->id_tree.rbe_left = (oright); else ((tmp)->id_tree.rbe_parent )->id_tree.rbe_right = (oright); } else (head)->rbh_root = (oright); (oright)->id_tree.rbe_left = (tmp); (tmp)-> id_tree.rbe_parent = (oright); do {} while (0); if (((oright) ->id_tree.rbe_parent)) do {} while (0); } while (0); tmp = (parent)->id_tree.rbe_left; } (tmp)->id_tree.rbe_color = (parent)->id_tree.rbe_color; (parent)->id_tree.rbe_color = 0; if ((tmp)->id_tree.rbe_left) ((tmp)->id_tree.rbe_left )->id_tree.rbe_color = 0; do { (tmp) = (parent)->id_tree .rbe_left; if (((parent)->id_tree.rbe_left = (tmp)->id_tree .rbe_right)) { ((tmp)->id_tree.rbe_right)->id_tree.rbe_parent = (parent); } do {} while (0); if (((tmp)->id_tree.rbe_parent = (parent)->id_tree.rbe_parent)) { if ((parent) == ((parent )->id_tree.rbe_parent)->id_tree.rbe_left) ((parent)-> id_tree.rbe_parent)->id_tree.rbe_left = (tmp); else ((parent )->id_tree.rbe_parent)->id_tree.rbe_right = (tmp); } else (head)->rbh_root = (tmp); (tmp)->id_tree.rbe_right = ( parent); (parent)->id_tree.rbe_parent = (tmp); do {} while (0); if (((tmp)->id_tree.rbe_parent)) do {} while (0); } while (0); elm = (head)->rbh_root; break; } } } if (elm) (elm)-> id_tree.rbe_color = 0; } struct eigrp_iface * iface_id_head_RB_REMOVE (struct iface_id_head *head, struct eigrp_iface *elm) { struct eigrp_iface *child, *parent, *old = elm; int color; if ((elm )->id_tree.rbe_left == ((void *)0)) child = (elm)->id_tree .rbe_right; else if ((elm)->id_tree.rbe_right == ((void *) 0)) child = (elm)->id_tree.rbe_left; else { struct eigrp_iface *left; elm = (elm)->id_tree.rbe_right; while ((left = (elm )->id_tree.rbe_left)) elm = left; child = (elm)->id_tree .rbe_right; parent = (elm)->id_tree.rbe_parent; color = (elm )->id_tree.rbe_color; if (child) (child)->id_tree.rbe_parent = parent; if (parent) { if ((parent)->id_tree.rbe_left == elm) (parent)->id_tree.rbe_left = child; else (parent)-> id_tree.rbe_right = child; do {} while (0); } else (head)-> rbh_root = child; if ((elm)->id_tree.rbe_parent == old) parent = elm; (elm)->id_tree = (old)->id_tree; if ((old)-> id_tree.rbe_parent) { if (((old)->id_tree.rbe_parent)-> id_tree.rbe_left == old) ((old)->id_tree.rbe_parent)->id_tree .rbe_left = elm; else ((old)->id_tree.rbe_parent)->id_tree .rbe_right = elm; do {} while (0); } else (head)->rbh_root = elm; ((old)->id_tree.rbe_left)->id_tree.rbe_parent = elm; if ((old)->id_tree.rbe_right) ((old)->id_tree.rbe_right )->id_tree.rbe_parent = elm; if (parent) { left = parent; do { do {} while (0); } while ((left = (left)->id_tree.rbe_parent )); } goto color; } parent = (elm)->id_tree.rbe_parent; color = (elm)->id_tree.rbe_color; if (child) (child)->id_tree .rbe_parent = parent; if (parent) { if ((parent)->id_tree. rbe_left == elm) (parent)->id_tree.rbe_left = child; else ( parent)->id_tree.rbe_right = child; do {} while (0); } else (head)->rbh_root = child; color: if (color == 0) iface_id_head_RB_REMOVE_COLOR (head, parent, child); return (old); } struct eigrp_iface * iface_id_head_RB_INSERT (struct iface_id_head *head, struct eigrp_iface *elm) { struct eigrp_iface *tmp; struct eigrp_iface *parent = ((void *)0); int comp = 0; tmp = (head)->rbh_root; while (tmp) { parent = tmp ; comp = (iface_id_compare)(elm, parent); if (comp < 0) tmp = (tmp)->id_tree.rbe_left; else if (comp > 0) tmp = (tmp )->id_tree.rbe_right; else return (tmp); } do { (elm)-> id_tree.rbe_parent = parent; (elm)->id_tree.rbe_left = (elm )->id_tree.rbe_right = ((void *)0); (elm)->id_tree.rbe_color = 1; } while (0); if (parent != ((void *)0)) { if (comp < 0) (parent)->id_tree.rbe_left = elm; else (parent)->id_tree .rbe_right = elm; do {} while (0); } else (head)->rbh_root = elm; iface_id_head_RB_INSERT_COLOR(head, elm); return (((void *)0)); } struct eigrp_iface * iface_id_head_RB_FIND(struct iface_id_head *head, struct eigrp_iface *elm) { struct eigrp_iface *tmp = ( head)->rbh_root; int comp; while (tmp) { comp = iface_id_compare (elm, tmp); if (comp < 0) tmp = (tmp)->id_tree.rbe_left ; else if (comp > 0) tmp = (tmp)->id_tree.rbe_right; else return (tmp); } return (((void *)0)); } struct eigrp_iface * iface_id_head_RB_NFIND(struct iface_id_head *head, struct eigrp_iface *elm) { struct eigrp_iface *tmp = (head)->rbh_root; struct eigrp_iface *res = ((void *)0); int comp; while (tmp) { comp = iface_id_compare(elm, tmp); if (comp < 0) { res = tmp; tmp = (tmp)->id_tree.rbe_left; } else if (comp > 0) tmp = ( tmp)->id_tree.rbe_right; else return (tmp); } return (res) ; } struct eigrp_iface * iface_id_head_RB_NEXT(struct eigrp_iface *elm) { if ((elm)->id_tree.rbe_right) { elm = (elm)->id_tree .rbe_right; while ((elm)->id_tree.rbe_left) elm = (elm)-> id_tree.rbe_left; } else { if ((elm)->id_tree.rbe_parent && (elm == ((elm)->id_tree.rbe_parent)->id_tree.rbe_left) ) elm = (elm)->id_tree.rbe_parent; else { while ((elm)-> id_tree.rbe_parent && (elm == ((elm)->id_tree.rbe_parent )->id_tree.rbe_right)) elm = (elm)->id_tree.rbe_parent; elm = (elm)->id_tree.rbe_parent; } } return (elm); } struct eigrp_iface * iface_id_head_RB_PREV(struct eigrp_iface *elm) { if ((elm)->id_tree.rbe_left) { elm = (elm)->id_tree. rbe_left; while ((elm)->id_tree.rbe_right) elm = (elm)-> id_tree.rbe_right; } else { if ((elm)->id_tree.rbe_parent && (elm == ((elm)->id_tree.rbe_parent)->id_tree.rbe_right )) elm = (elm)->id_tree.rbe_parent; else { while ((elm)-> id_tree.rbe_parent && (elm == ((elm)->id_tree.rbe_parent )->id_tree.rbe_left)) elm = (elm)->id_tree.rbe_parent; elm = (elm)->id_tree.rbe_parent; } } return (elm); } struct eigrp_iface * iface_id_head_RB_MINMAX(struct iface_id_head *head, int val ) { struct eigrp_iface *tmp = (head)->rbh_root; struct eigrp_iface *parent = ((void *)0); while (tmp) { parent = tmp; if (val < 0) tmp = (tmp)->id_tree.rbe_left; else tmp = (tmp)->id_tree .rbe_right; } return (parent); } | |||
| 51 | ||||
| 52 | struct iface_id_head ifaces_by_id = RB_INITIALIZER(&ifaces_by_id){ ((void *)0) }; | |||
| 53 | ||||
| 54 | static __inline int | |||
| 55 | iface_id_compare(struct eigrp_iface *a, struct eigrp_iface *b) | |||
| 56 | { | |||
| 57 | return (a->ifaceid - b->ifaceid); | |||
| 58 | } | |||
| 59 | ||||
| 60 | static struct iface * | |||
| 61 | if_new(struct eigrpd_conf *xconf, struct kif *kif) | |||
| 62 | { | |||
| 63 | struct iface *iface; | |||
| 64 | ||||
| 65 | if ((iface = calloc(1, sizeof(*iface))) == NULL((void *)0)) | |||
| 66 | fatal("if_new: calloc"); | |||
| 67 | ||||
| 68 | TAILQ_INIT(&iface->ei_list)do { (&iface->ei_list)->tqh_first = ((void *)0); (& iface->ei_list)->tqh_last = &(&iface->ei_list )->tqh_first; } while (0); | |||
| 69 | TAILQ_INIT(&iface->addr_list)do { (&iface->addr_list)->tqh_first = ((void *)0); ( &iface->addr_list)->tqh_last = &(&iface-> addr_list)->tqh_first; } while (0); | |||
| 70 | ||||
| 71 | strlcpy(iface->name, kif->ifname, sizeof(iface->name)); | |||
| 72 | ||||
| 73 | /* get type */ | |||
| 74 | if (kif->flags & IFF_POINTOPOINT0x10) | |||
| 75 | iface->type = IF_TYPE_POINTOPOINT; | |||
| 76 | if (kif->flags & IFF_BROADCAST0x2 && | |||
| 77 | kif->flags & IFF_MULTICAST0x8000) | |||
| 78 | iface->type = IF_TYPE_BROADCAST; | |||
| 79 | if (kif->flags & IFF_LOOPBACK0x8) | |||
| 80 | iface->type = IF_TYPE_POINTOPOINT; | |||
| 81 | ||||
| 82 | /* get index and flags */ | |||
| 83 | iface->mtu = kif->mtu; | |||
| 84 | iface->ifindex = kif->ifindex; | |||
| 85 | iface->rdomain = kif->rdomain; | |||
| 86 | iface->flags = kif->flags; | |||
| 87 | iface->linkstate = kif->link_state; | |||
| 88 | iface->if_type = kif->if_type; | |||
| 89 | iface->baudrate = kif->baudrate; | |||
| 90 | ||||
| 91 | TAILQ_INSERT_TAIL(&xconf->iface_list, iface, entry)do { (iface)->entry.tqe_next = ((void *)0); (iface)->entry .tqe_prev = (&xconf->iface_list)->tqh_last; *(& xconf->iface_list)->tqh_last = (iface); (&xconf-> iface_list)->tqh_last = &(iface)->entry.tqe_next; } while (0); | |||
| 92 | ||||
| 93 | return (iface); | |||
| 94 | } | |||
| 95 | ||||
| 96 | static void | |||
| 97 | if_del(struct iface *iface) | |||
| 98 | { | |||
| 99 | struct if_addr *if_addr; | |||
| 100 | ||||
| 101 | log_debug("%s: interface %s", __func__, iface->name); | |||
| 102 | ||||
| 103 | while ((if_addr = TAILQ_FIRST(&iface->addr_list)((&iface->addr_list)->tqh_first)) != NULL((void *)0)) { | |||
| 104 | TAILQ_REMOVE(&iface->addr_list, if_addr, entry)do { if (((if_addr)->entry.tqe_next) != ((void *)0)) (if_addr )->entry.tqe_next->entry.tqe_prev = (if_addr)->entry .tqe_prev; else (&iface->addr_list)->tqh_last = (if_addr )->entry.tqe_prev; *(if_addr)->entry.tqe_prev = (if_addr )->entry.tqe_next; ; ; } while (0); | |||
| 105 | free(if_addr); | |||
| 106 | } | |||
| 107 | ||||
| 108 | TAILQ_REMOVE(&econf->iface_list, iface, entry)do { if (((iface)->entry.tqe_next) != ((void *)0)) (iface) ->entry.tqe_next->entry.tqe_prev = (iface)->entry.tqe_prev ; else (&econf->iface_list)->tqh_last = (iface)-> entry.tqe_prev; *(iface)->entry.tqe_prev = (iface)->entry .tqe_next; ; ; } while (0); | |||
| 109 | free(iface); | |||
| 110 | } | |||
| 111 | ||||
| 112 | struct iface * | |||
| 113 | if_lookup(struct eigrpd_conf *xconf, unsigned int ifindex) | |||
| 114 | { | |||
| 115 | struct iface *iface; | |||
| 116 | ||||
| 117 | TAILQ_FOREACH(iface, &xconf->iface_list, entry)for((iface) = ((&xconf->iface_list)->tqh_first); (iface ) != ((void *)0); (iface) = ((iface)->entry.tqe_next)) | |||
| 118 | if (iface->ifindex == ifindex) | |||
| 119 | return (iface); | |||
| 120 | ||||
| 121 | return (NULL((void *)0)); | |||
| 122 | } | |||
| 123 | ||||
| 124 | void | |||
| 125 | if_addr_new(struct iface *iface, struct kaddr *ka) | |||
| 126 | { | |||
| 127 | struct if_addr *if_addr; | |||
| 128 | struct eigrp_iface *ei; | |||
| 129 | ||||
| 130 | if (ka->af == AF_INET624 && IN6_IS_ADDR_LINKLOCAL(&ka->addr.v6)(((&ka->addr.v6)->__u6_addr.__u6_addr8[0] == 0xfe) && (((&ka->addr.v6)->__u6_addr.__u6_addr8[1] & 0xc0 ) == 0x80))) { | |||
| 131 | iface->linklocal = ka->addr.v6; | |||
| 132 | if_update(iface, AF_INET624); | |||
| 133 | return; | |||
| 134 | } | |||
| 135 | ||||
| 136 | if (if_addr_lookup(&iface->addr_list, ka) != NULL((void *)0)) | |||
| 137 | return; | |||
| 138 | ||||
| 139 | if ((if_addr = calloc(1, sizeof(*if_addr))) == NULL((void *)0)) | |||
| 140 | fatal("if_addr_new: calloc"); | |||
| 141 | if_addr->af = ka->af; | |||
| 142 | if_addr->addr = ka->addr; | |||
| 143 | if_addr->prefixlen = ka->prefixlen; | |||
| 144 | if_addr->dstbrd = ka->dstbrd; | |||
| 145 | TAILQ_INSERT_TAIL(&iface->addr_list, if_addr, entry)do { (if_addr)->entry.tqe_next = ((void *)0); (if_addr)-> entry.tqe_prev = (&iface->addr_list)->tqh_last; *(& iface->addr_list)->tqh_last = (if_addr); (&iface-> addr_list)->tqh_last = &(if_addr)->entry.tqe_next; } while (0); | |||
| 146 | ||||
| 147 | TAILQ_FOREACH(ei, &iface->ei_list, i_entry)for((ei) = ((&iface->ei_list)->tqh_first); (ei) != ( (void *)0); (ei) = ((ei)->i_entry.tqe_next)) | |||
| 148 | if (ei->state == IF_STA_ACTIVE0x02 && ei->eigrp->af == if_addr->af) | |||
| 149 | eigrpe_orig_local_route(ei, if_addr, 0); | |||
| 150 | ||||
| 151 | if (if_addr->af == AF_INET2) | |||
| 152 | if_update(iface, AF_INET2); | |||
| 153 | } | |||
| 154 | ||||
| 155 | void | |||
| 156 | if_addr_del(struct iface *iface, struct kaddr *ka) | |||
| 157 | { | |||
| 158 | struct if_addr *if_addr; | |||
| 159 | struct eigrp_iface *ei; | |||
| 160 | int af = ka->af; | |||
| 161 | ||||
| 162 | if (ka->af == AF_INET624 && | |||
| ||||
| 163 | IN6_ARE_ADDR_EQUAL(&iface->linklocal, &ka->addr.v6)(memcmp(&(&iface->linklocal)->__u6_addr.__u6_addr8 [0], &(&ka->addr.v6)->__u6_addr.__u6_addr8[0], sizeof (struct in6_addr)) == 0)) { | |||
| 164 | memset(&iface->linklocal, 0, sizeof(iface->linklocal)); | |||
| 165 | if_update(iface, AF_INET624); | |||
| 166 | return; | |||
| 167 | } | |||
| 168 | ||||
| 169 | if_addr = if_addr_lookup(&iface->addr_list, ka); | |||
| 170 | if (if_addr
| |||
| 171 | return; | |||
| 172 | ||||
| 173 | TAILQ_FOREACH(ei, &iface->ei_list, i_entry)for((ei) = ((&iface->ei_list)->tqh_first); (ei) != ( (void *)0); (ei) = ((ei)->i_entry.tqe_next)) | |||
| 174 | if (ei->state == IF_STA_ACTIVE0x02 && ei->eigrp->af == if_addr->af) | |||
| 175 | eigrpe_orig_local_route(ei, if_addr, 1); | |||
| 176 | ||||
| 177 | TAILQ_REMOVE(&iface->addr_list, if_addr, entry)do { if (((if_addr)->entry.tqe_next) != ((void *)0)) (if_addr )->entry.tqe_next->entry.tqe_prev = (if_addr)->entry .tqe_prev; else (&iface->addr_list)->tqh_last = (if_addr )->entry.tqe_prev; *(if_addr)->entry.tqe_prev = (if_addr )->entry.tqe_next; ; ; } while (0); | |||
| 178 | free(if_addr); | |||
| 179 | ||||
| 180 | if (af == AF_INET2) | |||
| 181 | if_update(iface, AF_INET2); | |||
| 182 | } | |||
| 183 | ||||
| 184 | static struct if_addr * | |||
| 185 | if_addr_lookup(struct if_addr_head *addr_list, struct kaddr *ka) | |||
| 186 | { | |||
| 187 | struct if_addr *if_addr; | |||
| 188 | int af = ka->af; | |||
| 189 | ||||
| 190 | TAILQ_FOREACH(if_addr, addr_list, entry)for((if_addr) = ((addr_list)->tqh_first); (if_addr) != ((void *)0); (if_addr) = ((if_addr)->entry.tqe_next)) | |||
| 191 | if (!eigrp_addrcmp(af, &if_addr->addr, &ka->addr) && | |||
| 192 | if_addr->prefixlen == ka->prefixlen && | |||
| 193 | !eigrp_addrcmp(af, &if_addr->dstbrd, &ka->dstbrd)) | |||
| 194 | return (if_addr); | |||
| 195 | ||||
| 196 | return (NULL((void *)0)); | |||
| 197 | } | |||
| 198 | ||||
| 199 | in_addr_t | |||
| 200 | if_primary_addr(struct iface *iface) | |||
| 201 | { | |||
| 202 | struct if_addr *if_addr; | |||
| 203 | ||||
| 204 | TAILQ_FOREACH(if_addr, &iface->addr_list, entry)for((if_addr) = ((&iface->addr_list)->tqh_first); ( if_addr) != ((void *)0); (if_addr) = ((if_addr)->entry.tqe_next )) | |||
| 205 | if (if_addr->af == AF_INET2) | |||
| 206 | return (if_addr->addr.v4.s_addr); | |||
| 207 | ||||
| 208 | return (INADDR_ANY((u_int32_t)(0x00000000))); | |||
| 209 | } | |||
| 210 | ||||
| 211 | uint8_t | |||
| 212 | if_primary_addr_prefixlen(struct iface *iface) | |||
| 213 | { | |||
| 214 | struct if_addr *if_addr; | |||
| 215 | ||||
| 216 | TAILQ_FOREACH(if_addr, &iface->addr_list, entry)for((if_addr) = ((&iface->addr_list)->tqh_first); ( if_addr) != ((void *)0); (if_addr) = ((if_addr)->entry.tqe_next )) | |||
| 217 | if (if_addr->af == AF_INET2) | |||
| 218 | return (if_addr->prefixlen); | |||
| 219 | ||||
| 220 | return (0); | |||
| 221 | } | |||
| 222 | ||||
| 223 | /* up/down events */ | |||
| 224 | void | |||
| 225 | if_update(struct iface *iface, int af) | |||
| 226 | { | |||
| 227 | struct eigrp_iface *ei; | |||
| 228 | int link_ok; | |||
| 229 | int addr_ok, addr4_ok = 0, addr6_ok = 0; | |||
| 230 | struct if_addr *if_addr; | |||
| 231 | ||||
| 232 | link_ok = (iface->flags & IFF_UP0x1) && | |||
| 233 | LINK_STATE_IS_UP(iface->linkstate)((iface->linkstate) >= 4 || (iface->linkstate) == 0); | |||
| 234 | ||||
| 235 | /* | |||
| 236 | * NOTE: for EIGRPv4, each interface should have at least one valid | |||
| 237 | * IP address otherwise they can not be enabled in the routing domain. | |||
| 238 | */ | |||
| 239 | TAILQ_FOREACH(if_addr, &iface->addr_list, entry)for((if_addr) = ((&iface->addr_list)->tqh_first); ( if_addr) != ((void *)0); (if_addr) = ((if_addr)->entry.tqe_next )) { | |||
| 240 | if (if_addr->af == AF_INET2) { | |||
| ||||
| 241 | addr4_ok = 1; | |||
| 242 | break; | |||
| 243 | } | |||
| 244 | } | |||
| 245 | /* for IPv6 the link-local address is enough. */ | |||
| 246 | if (IN6_IS_ADDR_LINKLOCAL(&iface->linklocal)(((&iface->linklocal)->__u6_addr.__u6_addr8[0] == 0xfe ) && (((&iface->linklocal)->__u6_addr.__u6_addr8 [1] & 0xc0) == 0x80))) | |||
| 247 | addr6_ok = 1; | |||
| 248 | ||||
| 249 | TAILQ_FOREACH(ei, &iface->ei_list, i_entry)for((ei) = ((&iface->ei_list)->tqh_first); (ei) != ( (void *)0); (ei) = ((ei)->i_entry.tqe_next)) { | |||
| 250 | if (af != AF_UNSPEC0 && ei->eigrp->af != af) | |||
| 251 | continue; | |||
| 252 | ||||
| 253 | switch (ei->eigrp->af) { | |||
| 254 | case AF_INET2: | |||
| 255 | addr_ok = addr4_ok; | |||
| 256 | break; | |||
| 257 | case AF_INET624: | |||
| 258 | addr_ok = addr6_ok; | |||
| 259 | break; | |||
| 260 | default: | |||
| 261 | fatalx("if_update: unknown af"); | |||
| 262 | } | |||
| 263 | ||||
| 264 | if (ei->state == IF_STA_DOWN0x01) { | |||
| 265 | if (!link_ok || !addr_ok) | |||
| 266 | continue; | |||
| 267 | ei->state = IF_STA_ACTIVE0x02; | |||
| 268 | eigrp_if_start(ei); | |||
| 269 | } else if (ei->state == IF_STA_ACTIVE0x02) { | |||
| 270 | if (link_ok && addr_ok) | |||
| 271 | continue; | |||
| 272 | ei->state = IF_STA_DOWN0x01; | |||
| 273 | eigrp_if_reset(ei); | |||
| 274 | } | |||
| 275 | } | |||
| 276 | } | |||
| 277 | ||||
| 278 | struct eigrp_iface * | |||
| 279 | eigrp_if_new(struct eigrpd_conf *xconf, struct eigrp *eigrp, struct kif *kif) | |||
| 280 | { | |||
| 281 | struct iface *iface; | |||
| 282 | struct eigrp_iface *ei; | |||
| 283 | static uint32_t ifacecnt = 1; | |||
| 284 | ||||
| 285 | iface = if_lookup(xconf, kif->ifindex); | |||
| 286 | if (iface == NULL((void *)0)) | |||
| 287 | iface = if_new(xconf, kif); | |||
| 288 | ||||
| 289 | if ((ei = calloc(1, sizeof(*ei))) == NULL((void *)0)) | |||
| 290 | fatal("eigrp_if_new: calloc"); | |||
| 291 | ||||
| 292 | ei->state = IF_STA_DOWN0x01; | |||
| 293 | /* get next unused ifaceid */ | |||
| 294 | while (eigrp_if_lookup_id(ifacecnt++)) | |||
| 295 | ; | |||
| 296 | ei->ifaceid = ifacecnt; | |||
| 297 | ei->eigrp = eigrp; | |||
| 298 | ei->iface = iface; | |||
| 299 | if (ei->iface->flags & IFF_LOOPBACK0x8) | |||
| 300 | ei->passive = 1; | |||
| 301 | ||||
| 302 | TAILQ_INIT(&ei->nbr_list)do { (&ei->nbr_list)->tqh_first = ((void *)0); (& ei->nbr_list)->tqh_last = &(&ei->nbr_list)-> tqh_first; } while (0); | |||
| 303 | TAILQ_INIT(&ei->update_list)do { (&ei->update_list)->tqh_first = ((void *)0); ( &ei->update_list)->tqh_last = &(&ei->update_list )->tqh_first; } while (0); | |||
| 304 | TAILQ_INIT(&ei->query_list)do { (&ei->query_list)->tqh_first = ((void *)0); (& ei->query_list)->tqh_last = &(&ei->query_list )->tqh_first; } while (0); | |||
| 305 | TAILQ_INIT(&ei->summary_list)do { (&ei->summary_list)->tqh_first = ((void *)0); ( &ei->summary_list)->tqh_last = &(&ei->summary_list )->tqh_first; } while (0); | |||
| 306 | TAILQ_INSERT_TAIL(&iface->ei_list, ei, i_entry)do { (ei)->i_entry.tqe_next = ((void *)0); (ei)->i_entry .tqe_prev = (&iface->ei_list)->tqh_last; *(&iface ->ei_list)->tqh_last = (ei); (&iface->ei_list)-> tqh_last = &(ei)->i_entry.tqe_next; } while (0); | |||
| 307 | TAILQ_INSERT_TAIL(&eigrp->ei_list, ei, e_entry)do { (ei)->e_entry.tqe_next = ((void *)0); (ei)->e_entry .tqe_prev = (&eigrp->ei_list)->tqh_last; *(&eigrp ->ei_list)->tqh_last = (ei); (&eigrp->ei_list)-> tqh_last = &(ei)->e_entry.tqe_next; } while (0); | |||
| 308 | if (RB_INSERT(iface_id_head, &ifaces_by_id, ei)iface_id_head_RB_INSERT(&ifaces_by_id, ei) != NULL((void *)0)) | |||
| 309 | fatalx("eigrp_if_new: RB_INSERT(ifaces_by_id) failed"); | |||
| 310 | ||||
| 311 | return (ei); | |||
| 312 | } | |||
| 313 | ||||
| 314 | void | |||
| 315 | eigrp_if_del(struct eigrp_iface *ei) | |||
| 316 | { | |||
| 317 | struct summary_addr *summary; | |||
| 318 | ||||
| 319 | RB_REMOVE(iface_id_head, &ifaces_by_id, ei)iface_id_head_RB_REMOVE(&ifaces_by_id, ei); | |||
| 320 | TAILQ_REMOVE(&ei->eigrp->ei_list, ei, e_entry)do { if (((ei)->e_entry.tqe_next) != ((void *)0)) (ei)-> e_entry.tqe_next->e_entry.tqe_prev = (ei)->e_entry.tqe_prev ; else (&ei->eigrp->ei_list)->tqh_last = (ei)-> e_entry.tqe_prev; *(ei)->e_entry.tqe_prev = (ei)->e_entry .tqe_next; ; ; } while (0); | |||
| 321 | TAILQ_REMOVE(&ei->iface->ei_list, ei, i_entry)do { if (((ei)->i_entry.tqe_next) != ((void *)0)) (ei)-> i_entry.tqe_next->i_entry.tqe_prev = (ei)->i_entry.tqe_prev ; else (&ei->iface->ei_list)->tqh_last = (ei)-> i_entry.tqe_prev; *(ei)->i_entry.tqe_prev = (ei)->i_entry .tqe_next; ; ; } while (0); | |||
| 322 | while ((summary = TAILQ_FIRST(&ei->summary_list)((&ei->summary_list)->tqh_first)) != NULL((void *)0)) { | |||
| 323 | TAILQ_REMOVE(&ei->summary_list, summary, entry)do { if (((summary)->entry.tqe_next) != ((void *)0)) (summary )->entry.tqe_next->entry.tqe_prev = (summary)->entry .tqe_prev; else (&ei->summary_list)->tqh_last = (summary )->entry.tqe_prev; *(summary)->entry.tqe_prev = (summary )->entry.tqe_next; ; ; } while (0); | |||
| 324 | free(summary); | |||
| 325 | } | |||
| 326 | message_list_clr(&ei->query_list); | |||
| 327 | message_list_clr(&ei->update_list); | |||
| 328 | ||||
| 329 | if (ei->state == IF_STA_ACTIVE0x02) | |||
| 330 | eigrp_if_reset(ei); | |||
| 331 | ||||
| 332 | if (TAILQ_EMPTY(&ei->iface->ei_list)(((&ei->iface->ei_list)->tqh_first) == ((void *) 0))) | |||
| 333 | if_del(ei->iface); | |||
| 334 | ||||
| 335 | free(ei); | |||
| 336 | } | |||
| 337 | ||||
| 338 | struct eigrp_iface * | |||
| 339 | eigrp_if_lookup(struct iface *iface, int af, uint16_t as) | |||
| 340 | { | |||
| 341 | struct eigrp_iface *ei; | |||
| 342 | ||||
| 343 | TAILQ_FOREACH(ei, &iface->ei_list, i_entry)for((ei) = ((&iface->ei_list)->tqh_first); (ei) != ( (void *)0); (ei) = ((ei)->i_entry.tqe_next)) | |||
| 344 | if (ei->eigrp->af == af && | |||
| 345 | ei->eigrp->as == as) | |||
| 346 | return (ei); | |||
| 347 | ||||
| 348 | return (NULL((void *)0)); | |||
| 349 | } | |||
| 350 | ||||
| 351 | struct eigrp_iface * | |||
| 352 | eigrp_if_lookup_id(uint32_t ifaceid) | |||
| 353 | { | |||
| 354 | struct eigrp_iface e; | |||
| 355 | e.ifaceid = ifaceid; | |||
| 356 | return (RB_FIND(iface_id_head, &ifaces_by_id, &e)iface_id_head_RB_FIND(&ifaces_by_id, &e)); | |||
| 357 | } | |||
| 358 | ||||
| 359 | static void | |||
| 360 | eigrp_if_start(struct eigrp_iface *ei) | |||
| 361 | { | |||
| 362 | struct eigrp *eigrp = ei->eigrp; | |||
| 363 | struct timeval now; | |||
| 364 | struct if_addr *if_addr; | |||
| 365 | union eigrpd_addr addr; | |||
| 366 | ||||
| 367 | log_debug("%s: %s as %u family %s", __func__, ei->iface->name, | |||
| 368 | eigrp->as, af_name(eigrp->af)); | |||
| 369 | ||||
| 370 | gettimeofday(&now, NULL((void *)0)); | |||
| 371 | ei->uptime = now.tv_sec; | |||
| 372 | ||||
| 373 | /* init the dummy self neighbor */ | |||
| 374 | memset(&addr, 0, sizeof(addr)); | |||
| 375 | ei->self = nbr_new(ei, &addr, 0, 1); | |||
| 376 | nbr_init(ei->self); | |||
| 377 | ||||
| 378 | TAILQ_FOREACH(if_addr, &ei->iface->addr_list, entry)for((if_addr) = ((&ei->iface->addr_list)->tqh_first ); (if_addr) != ((void *)0); (if_addr) = ((if_addr)->entry .tqe_next)) { | |||
| 379 | if (if_addr->af != eigrp->af) | |||
| 380 | continue; | |||
| 381 | ||||
| 382 | eigrpe_orig_local_route(ei, if_addr, 0); | |||
| 383 | } | |||
| 384 | ||||
| 385 | if (ei->passive) | |||
| 386 | return; | |||
| 387 | ||||
| 388 | switch (eigrp->af) { | |||
| 389 | case AF_INET2: | |||
| 390 | if (if_join_ipv4_group(ei->iface, &global.mcast_addr_v4)) | |||
| 391 | return; | |||
| 392 | break; | |||
| 393 | case AF_INET624: | |||
| 394 | if (if_join_ipv6_group(ei->iface, &global.mcast_addr_v6)) | |||
| 395 | return; | |||
| 396 | break; | |||
| 397 | default: | |||
| 398 | fatalx("eigrp_if_start: unknown af"); | |||
| 399 | } | |||
| 400 | ||||
| 401 | evtimer_set(&ei->hello_timer, eigrp_if_hello_timer, ei)event_set(&ei->hello_timer, -1, 0, eigrp_if_hello_timer , ei); | |||
| 402 | eigrp_if_start_hello_timer(ei); | |||
| 403 | } | |||
| 404 | ||||
| 405 | static void | |||
| 406 | eigrp_if_reset(struct eigrp_iface *ei) | |||
| 407 | { | |||
| 408 | struct eigrp *eigrp = ei->eigrp; | |||
| 409 | struct nbr *nbr; | |||
| 410 | ||||
| 411 | log_debug("%s: %s as %u family %s", __func__, ei->iface->name, | |||
| 412 | eigrp->as, af_name(eigrp->af)); | |||
| 413 | ||||
| 414 | /* the rde will withdraw the connected route for us */ | |||
| 415 | ||||
| 416 | while ((nbr = TAILQ_FIRST(&ei->nbr_list)((&ei->nbr_list)->tqh_first)) != NULL((void *)0)) | |||
| 417 | nbr_del(nbr); | |||
| 418 | ||||
| 419 | if (ei->passive) | |||
| 420 | return; | |||
| 421 | ||||
| 422 | /* try to cleanup */ | |||
| 423 | switch (eigrp->af) { | |||
| 424 | case AF_INET2: | |||
| 425 | if_leave_ipv4_group(ei->iface, &global.mcast_addr_v4); | |||
| 426 | break; | |||
| 427 | case AF_INET624: | |||
| 428 | if_leave_ipv6_group(ei->iface, &global.mcast_addr_v6); | |||
| 429 | break; | |||
| 430 | default: | |||
| 431 | fatalx("eigrp_if_reset: unknown af"); | |||
| 432 | } | |||
| 433 | ||||
| 434 | eigrp_if_stop_hello_timer(ei); | |||
| 435 | } | |||
| 436 | ||||
| 437 | /* timers */ | |||
| 438 | /* ARGSUSED */ | |||
| 439 | static void | |||
| 440 | eigrp_if_hello_timer(int fd, short event, void *arg) | |||
| 441 | { | |||
| 442 | struct eigrp_iface *ei = arg; | |||
| 443 | struct timeval tv; | |||
| 444 | ||||
| 445 | send_hello(ei, NULL((void *)0), 0); | |||
| 446 | ||||
| 447 | /* reschedule hello_timer */ | |||
| 448 | timerclear(&tv)(&tv)->tv_sec = (&tv)->tv_usec = 0; | |||
| 449 | tv.tv_sec = ei->hello_interval; | |||
| 450 | if (evtimer_add(&ei->hello_timer, &tv)event_add(&ei->hello_timer, &tv) == -1) | |||
| 451 | fatal("eigrp_if_hello_timer"); | |||
| 452 | } | |||
| 453 | ||||
| 454 | static void | |||
| 455 | eigrp_if_start_hello_timer(struct eigrp_iface *ei) | |||
| 456 | { | |||
| 457 | struct timeval tv; | |||
| 458 | ||||
| 459 | timerclear(&tv)(&tv)->tv_sec = (&tv)->tv_usec = 0; | |||
| 460 | tv.tv_sec = ei->hello_interval; | |||
| 461 | if (evtimer_add(&ei->hello_timer, &tv)event_add(&ei->hello_timer, &tv) == -1) | |||
| 462 | fatal("eigrp_if_start_hello_timer"); | |||
| 463 | } | |||
| 464 | ||||
| 465 | static void | |||
| 466 | eigrp_if_stop_hello_timer(struct eigrp_iface *ei) | |||
| 467 | { | |||
| 468 | if (evtimer_pending(&ei->hello_timer, NULL)event_pending(&ei->hello_timer, 0x01, ((void *)0)) && | |||
| 469 | evtimer_del(&ei->hello_timer)event_del(&ei->hello_timer) == -1) | |||
| 470 | fatal("eigrp_if_stop_hello_timer"); | |||
| 471 | } | |||
| 472 | ||||
| 473 | struct ctl_iface * | |||
| 474 | if_to_ctl(struct eigrp_iface *ei) | |||
| 475 | { | |||
| 476 | static struct ctl_iface ictl; | |||
| 477 | struct timeval now; | |||
| 478 | struct nbr *nbr; | |||
| 479 | ||||
| 480 | ictl.af = ei->eigrp->af; | |||
| 481 | ictl.as = ei->eigrp->as; | |||
| 482 | memcpy(ictl.name, ei->iface->name, sizeof(ictl.name)); | |||
| 483 | ictl.ifindex = ei->iface->ifindex; | |||
| 484 | switch (ei->eigrp->af) { | |||
| 485 | case AF_INET2: | |||
| 486 | ictl.addr.v4.s_addr = if_primary_addr(ei->iface); | |||
| 487 | ictl.prefixlen = if_primary_addr_prefixlen(ei->iface); | |||
| 488 | break; | |||
| 489 | case AF_INET624: | |||
| 490 | ictl.addr.v6 = ei->iface->linklocal; | |||
| 491 | if (!IN6_IS_ADDR_UNSPECIFIED(&ei->iface->linklocal)((*(const u_int32_t *)(const void *)(&(&ei->iface-> linklocal)->__u6_addr.__u6_addr8[0]) == 0) && (*(const u_int32_t *)(const void *)(&(&ei->iface->linklocal )->__u6_addr.__u6_addr8[4]) == 0) && (*(const u_int32_t *)(const void *)(&(&ei->iface->linklocal)-> __u6_addr.__u6_addr8[8]) == 0) && (*(const u_int32_t * )(const void *)(&(&ei->iface->linklocal)->__u6_addr .__u6_addr8[12]) == 0))) | |||
| 492 | ictl.prefixlen = 64; | |||
| 493 | else | |||
| 494 | ictl.prefixlen = 0; | |||
| 495 | break; | |||
| 496 | default: | |||
| 497 | fatalx("if_to_ctl: unknown af"); | |||
| 498 | } | |||
| 499 | ictl.flags = ei->iface->flags; | |||
| 500 | ictl.linkstate = ei->iface->linkstate; | |||
| 501 | ictl.mtu = ei->iface->mtu; | |||
| 502 | ictl.type = ei->iface->type; | |||
| 503 | ictl.if_type = ei->iface->if_type; | |||
| 504 | ictl.baudrate = ei->iface->baudrate; | |||
| 505 | ictl.delay = ei->delay; | |||
| 506 | ictl.bandwidth = ei->bandwidth; | |||
| 507 | ictl.hello_holdtime = ei->hello_holdtime; | |||
| 508 | ictl.hello_interval = ei->hello_interval; | |||
| 509 | ictl.splithorizon = ei->splithorizon; | |||
| 510 | ictl.passive = ei->passive; | |||
| 511 | ictl.nbr_cnt = 0; | |||
| 512 | ||||
| 513 | gettimeofday(&now, NULL((void *)0)); | |||
| 514 | if (ei->state != IF_STA_DOWN0x01 && ei->uptime != 0) | |||
| 515 | ictl.uptime = now.tv_sec - ei->uptime; | |||
| 516 | else | |||
| 517 | ictl.uptime = 0; | |||
| 518 | ||||
| 519 | TAILQ_FOREACH(nbr, &ei->nbr_list, entry)for((nbr) = ((&ei->nbr_list)->tqh_first); (nbr) != ( (void *)0); (nbr) = ((nbr)->entry.tqe_next)) | |||
| 520 | if (!(nbr->flags & (F_EIGRP_NBR_PENDING0x02|F_EIGRP_NBR_SELF0x01))) | |||
| 521 | ictl.nbr_cnt++; | |||
| 522 | ||||
| 523 | return (&ictl); | |||
| 524 | } | |||
| 525 | ||||
| 526 | /* misc */ | |||
| 527 | void | |||
| 528 | if_set_sockbuf(int fd) | |||
| 529 | { | |||
| 530 | int bsize; | |||
| 531 | ||||
| 532 | bsize = 65535; | |||
| 533 | while (setsockopt(fd, SOL_SOCKET0xffff, SO_RCVBUF0x1002, &bsize, | |||
| 534 | sizeof(bsize)) == -1) | |||
| 535 | bsize /= 2; | |||
| 536 | ||||
| 537 | if (bsize != 65535) | |||
| 538 | log_warnx("%s: recvbuf size only %d", __func__, bsize); | |||
| 539 | ||||
| 540 | bsize = 65535; | |||
| 541 | while (setsockopt(fd, SOL_SOCKET0xffff, SO_SNDBUF0x1001, &bsize, | |||
| 542 | sizeof(bsize)) == -1) | |||
| 543 | bsize /= 2; | |||
| 544 | ||||
| 545 | if (bsize != 65535) | |||
| 546 | log_warnx("%s: sendbuf size only %d", __func__, bsize); | |||
| 547 | } | |||
| 548 | ||||
| 549 | static int | |||
| 550 | if_join_ipv4_group(struct iface *iface, struct in_addr *addr) | |||
| 551 | { | |||
| 552 | struct ip_mreq mreq; | |||
| 553 | ||||
| 554 | if (iface->group_count_v4++ != 0) | |||
| 555 | /* already joined */ | |||
| 556 | return (0); | |||
| 557 | ||||
| 558 | log_debug("%s: interface %s addr %s", __func__, iface->name, | |||
| 559 | inet_ntoa(*addr)); | |||
| 560 | ||||
| 561 | mreq.imr_multiaddr = *addr; | |||
| 562 | mreq.imr_interface.s_addr = if_primary_addr(iface); | |||
| 563 | ||||
| 564 | if (setsockopt(global.eigrp_socket_v4, IPPROTO_IP0, IP_ADD_MEMBERSHIP12, | |||
| 565 | (void *)&mreq, sizeof(mreq)) == -1) { | |||
| 566 | log_warn("%s: error IP_ADD_MEMBERSHIP, interface %s address %s", | |||
| 567 | __func__, iface->name, inet_ntoa(*addr)); | |||
| 568 | return (-1); | |||
| 569 | } | |||
| 570 | ||||
| 571 | return (0); | |||
| 572 | } | |||
| 573 | ||||
| 574 | static int | |||
| 575 | if_leave_ipv4_group(struct iface *iface, struct in_addr *addr) | |||
| 576 | { | |||
| 577 | struct ip_mreq mreq; | |||
| 578 | ||||
| 579 | if (--iface->group_count_v4 != 0) | |||
| 580 | /* others still joined */ | |||
| 581 | return (0); | |||
| 582 | ||||
| 583 | log_debug("%s: interface %s addr %s", __func__, iface->name, | |||
| 584 | inet_ntoa(*addr)); | |||
| 585 | ||||
| 586 | mreq.imr_multiaddr = *addr; | |||
| 587 | mreq.imr_interface.s_addr = if_primary_addr(iface); | |||
| 588 | ||||
| 589 | if (setsockopt(global.eigrp_socket_v4, IPPROTO_IP0, IP_DROP_MEMBERSHIP13, | |||
| 590 | (void *)&mreq, sizeof(mreq)) == -1) { | |||
| 591 | log_warn("%s: error IP_DROP_MEMBERSHIP, interface %s " | |||
| 592 | "address %s", iface->name, __func__, inet_ntoa(*addr)); | |||
| 593 | return (-1); | |||
| 594 | } | |||
| 595 | ||||
| 596 | return (0); | |||
| 597 | } | |||
| 598 | ||||
| 599 | int | |||
| 600 | if_set_ipv4_mcast_ttl(int fd, uint8_t ttl) | |||
| 601 | { | |||
| 602 | if (setsockopt(fd, IPPROTO_IP0, IP_MULTICAST_TTL10, | |||
| 603 | (char *)&ttl, sizeof(ttl)) == -1) { | |||
| 604 | log_warn("%s: error setting IP_MULTICAST_TTL to %d", | |||
| 605 | __func__, ttl); | |||
| 606 | return (-1); | |||
| 607 | } | |||
| 608 | ||||
| 609 | return (0); | |||
| 610 | } | |||
| 611 | ||||
| 612 | int | |||
| 613 | if_set_ipv4_mcast(struct iface *iface) | |||
| 614 | { | |||
| 615 | in_addr_t addr; | |||
| 616 | ||||
| 617 | addr = if_primary_addr(iface); | |||
| 618 | ||||
| 619 | if (setsockopt(global.eigrp_socket_v4, IPPROTO_IP0, IP_MULTICAST_IF9, | |||
| 620 | &addr, sizeof(addr)) == -1) { | |||
| 621 | log_warn("%s: error setting IP_MULTICAST_IF, interface %s", | |||
| 622 | __func__, iface->name); | |||
| 623 | return (-1); | |||
| 624 | } | |||
| 625 | ||||
| 626 | return (0); | |||
| 627 | } | |||
| 628 | ||||
| 629 | int | |||
| 630 | if_set_ipv4_mcast_loop(int fd) | |||
| 631 | { | |||
| 632 | uint8_t loop = 0; | |||
| 633 | ||||
| 634 | if (setsockopt(fd, IPPROTO_IP0, IP_MULTICAST_LOOP11, | |||
| 635 | (char *)&loop, sizeof(loop)) == -1) { | |||
| 636 | log_warn("%s: error setting IP_MULTICAST_LOOP", __func__); | |||
| 637 | return (-1); | |||
| 638 | } | |||
| 639 | ||||
| 640 | return (0); | |||
| 641 | } | |||
| 642 | ||||
| 643 | int | |||
| 644 | if_set_ipv4_recvif(int fd, int enable) | |||
| 645 | { | |||
| 646 | if (setsockopt(fd, IPPROTO_IP0, IP_RECVIF30, &enable, | |||
| 647 | sizeof(enable)) == -1) { | |||
| 648 | log_warn("%s: error setting IP_RECVIF", __func__); | |||
| 649 | return (-1); | |||
| 650 | } | |||
| 651 | return (0); | |||
| 652 | } | |||
| 653 | ||||
| 654 | int | |||
| 655 | if_set_ipv4_hdrincl(int fd) | |||
| 656 | { | |||
| 657 | int hincl = 1; | |||
| 658 | ||||
| 659 | if (setsockopt(fd, IPPROTO_IP0, IP_HDRINCL2, &hincl, sizeof(hincl)) == -1) { | |||
| 660 | log_warn("%s: error setting IP_HDRINCL", __func__); | |||
| 661 | return (-1); | |||
| 662 | } | |||
| 663 | ||||
| 664 | return (0); | |||
| 665 | } | |||
| 666 | ||||
| 667 | static int | |||
| 668 | if_join_ipv6_group(struct iface *iface, struct in6_addr *addr) | |||
| 669 | { | |||
| 670 | struct ipv6_mreq mreq; | |||
| 671 | ||||
| 672 | if (iface->group_count_v6++ != 0) | |||
| 673 | /* already joined */ | |||
| 674 | return (0); | |||
| 675 | ||||
| 676 | log_debug("%s: interface %s addr %s", __func__, iface->name, | |||
| 677 | log_in6addr(addr)); | |||
| 678 | ||||
| 679 | mreq.ipv6mr_multiaddr = *addr; | |||
| 680 | mreq.ipv6mr_interface = iface->ifindex; | |||
| 681 | ||||
| 682 | if (setsockopt(global.eigrp_socket_v6, IPPROTO_IPV641, IPV6_JOIN_GROUP12, | |||
| 683 | &mreq, sizeof(mreq)) == -1) { | |||
| 684 | log_warn("%s: error IPV6_JOIN_GROUP, interface %s address %s", | |||
| 685 | __func__, iface->name, log_in6addr(addr)); | |||
| 686 | return (-1); | |||
| 687 | } | |||
| 688 | ||||
| 689 | return (0); | |||
| 690 | } | |||
| 691 | ||||
| 692 | static int | |||
| 693 | if_leave_ipv6_group(struct iface *iface, struct in6_addr *addr) | |||
| 694 | { | |||
| 695 | struct ipv6_mreq mreq; | |||
| 696 | ||||
| 697 | if (--iface->group_count_v6 != 0) | |||
| 698 | /* others still joined */ | |||
| 699 | return (0); | |||
| 700 | ||||
| 701 | log_debug("%s: interface %s addr %s", __func__, iface->name, | |||
| 702 | log_in6addr(addr)); | |||
| 703 | ||||
| 704 | mreq.ipv6mr_multiaddr = *addr; | |||
| 705 | mreq.ipv6mr_interface = iface->ifindex; | |||
| 706 | ||||
| 707 | if (setsockopt(global.eigrp_socket_v6, IPPROTO_IPV641, IPV6_LEAVE_GROUP13, | |||
| 708 | (void *)&mreq, sizeof(mreq)) == -1) { | |||
| 709 | log_warn("%s: error IPV6_LEAVE_GROUP, interface %s address %s", | |||
| 710 | __func__, iface->name, log_in6addr(addr)); | |||
| 711 | return (-1); | |||
| 712 | } | |||
| 713 | ||||
| 714 | return (0); | |||
| 715 | } | |||
| 716 | ||||
| 717 | int | |||
| 718 | if_set_ipv6_mcast(struct iface *iface) | |||
| 719 | { | |||
| 720 | if (setsockopt(global.eigrp_socket_v6, IPPROTO_IPV641, IPV6_MULTICAST_IF9, | |||
| 721 | &iface->ifindex, sizeof(iface->ifindex)) == -1) { | |||
| 722 | log_warn("%s: error setting IPV6_MULTICAST_IF, interface %s", | |||
| 723 | __func__, iface->name); | |||
| 724 | return (-1); | |||
| 725 | } | |||
| 726 | ||||
| 727 | return (0); | |||
| 728 | } | |||
| 729 | ||||
| 730 | int | |||
| 731 | if_set_ipv6_mcast_loop(int fd) | |||
| 732 | { | |||
| 733 | unsigned int loop = 0; | |||
| 734 | ||||
| 735 | if (setsockopt(fd, IPPROTO_IPV641, IPV6_MULTICAST_LOOP11, | |||
| 736 | (unsigned int *)&loop, sizeof(loop)) == -1) { | |||
| 737 | log_warn("%s: error setting IPV6_MULTICAST_LOOP", __func__); | |||
| 738 | return (-1); | |||
| 739 | } | |||
| 740 | ||||
| 741 | return (0); | |||
| 742 | } | |||
| 743 | ||||
| 744 | int | |||
| 745 | if_set_ipv6_pktinfo(int fd, int enable) | |||
| 746 | { | |||
| 747 | if (setsockopt(fd, IPPROTO_IPV641, IPV6_RECVPKTINFO36, &enable, | |||
| 748 | sizeof(enable)) == -1) { | |||
| 749 | log_warn("%s: error setting IPV6_RECVPKTINFO", __func__); | |||
| 750 | return (-1); | |||
| 751 | } | |||
| 752 | ||||
| 753 | return (0); | |||
| 754 | } | |||
| 755 | ||||
| 756 | int | |||
| 757 | if_set_ipv6_dscp(int fd, int dscp) | |||
| 758 | { | |||
| 759 | if (setsockopt(fd, IPPROTO_IPV641, IPV6_TCLASS61, &dscp, | |||
| 760 | sizeof(dscp)) == -1) { | |||
| 761 | log_warn("%s: error setting IPV6_TCLASS", __func__); | |||
| 762 | return (-1); | |||
| 763 | } | |||
| 764 | ||||
| 765 | return (0); | |||
| 766 | } |