Fixes several problems in OSPF vlink implementation.
This commit is contained in:
Ondrej Zajicek
parent
607d991424
commit
3b89a2327b
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@ -164,7 +164,6 @@ ospf_vlink_start: VIRTUAL LINK idval
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add_tail(&this_area->vlink_list, NODE this_ipatt);
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init_list(&this_ipatt->ipn_list);
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OSPF_PATT->vid = $3;
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OSPF_PATT->cost = COST_D;
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OSPF_PATT->helloint = HELLOINT_D;
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OSPF_PATT->rxmtint = RXMTINT_D;
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OSPF_PATT->inftransdelay = INFTRANSDELAY_D;
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@ -260,6 +260,7 @@ ospf_iface_down(struct ospf_iface *ifa)
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ifa->iface = NULL;
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ifa->addr = NULL;
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ifa->sk = NULL;
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ifa->cost = 0;
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ifa->vip = IPA_NONE;
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return;
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}
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@ -445,27 +446,6 @@ ospf_iface_new(struct proto_ospf *po, struct iface *iface, struct ifa *addr,
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#ifdef OSPFv3
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ifa->instance_id = ip->instance_id;
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/*
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addr = NULL;
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if (ifa->type != OSPF_IT_VLINK)
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{
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struct ifa *a;
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WALK_LIST(a, iface->addrs)
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if (a->scope == SCOPE_LINK)
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{
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addr = a;
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break;
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}
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if (!addr)
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{
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log(L_ERR "%s: Missing link-local address on interface %s, declaring as stub", p->name, iface->name);
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ifa->ioprob = OSPF_I_LL;
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ifa->stub = 1;
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}
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}
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*/
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#endif
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if (ip->type == OSPF_IT_UNDEF)
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961
proto/ospf/rt.c
961
proto/ospf/rt.c
File diff suppressed because it is too large
Load diff
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@ -17,22 +17,31 @@
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typedef struct orta
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{
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int type;
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u32 options;
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/* router-LSA style options (for ORT_ROUTER), with V,E,B bits.
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In OSPFv2, ASBRs from another areas (that we know from rt-summary-lsa),
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have just ORTA_ASBR in options, their real options are unknown */
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u32 options;
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/*
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* For ORT_ROUTER routes, options field are router-LSA style
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* options, with V,E,B bits. In OSPFv2, ASBRs from another areas
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* (that we know from rt-summary-lsa) have just ORTA_ASBR in
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* options, their real options are unknown.
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*/
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#define ORTA_ASBR OPT_RT_E
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#define ORTA_ABR OPT_RT_B
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struct ospf_area *oa;
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/*
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* For ORT_NET routes, the field is almost unused with one
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* exception: ORTA_PREF for external routes means that the route is
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* preferred in AS external route selection according to 16.4.1. -
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* it is intra-area path using non-backbone area. In other words,
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* the forwarding address (or ASBR if forwarding address is zero) is
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* intra-area (type == RTS_OSPF) and its area is not a backbone.
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*/
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#define ORTA_PREF 0x80000000
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u32 metric1;
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u32 metric2;
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ip_addr nh; /* Next hop */
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struct ospf_iface *ifa; /* Outgoing interface */
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struct top_hash_entry *ar; /* Advertising router (or ABR) */
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u32 tag;
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u32 rid; /* Router ID of real advertising router */
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/* For ext-LSA from different area, 'ar' is a type 1 LSA of ABR.
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Router ID of real advertising router is stored in 'rid'. */
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struct ospf_area *oa;
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struct ospf_iface *ifa; /* Outgoing interface */
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ip_addr nh; /* Next hop */
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}
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orta;
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@ -41,7 +50,6 @@ typedef struct ort
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struct fib_node fn;
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orta n;
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orta o;
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struct ort *efn; /* For RFC1583 */
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}
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ort;
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@ -1114,6 +1114,8 @@ originate_prefix_rt_lsa_body(struct ospf_area *oa, u16 *length)
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struct proto_ospf *po = oa->po;
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struct ospf_iface *ifa;
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struct ospf_lsa_prefix *lp;
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struct ifa *vlink_addr = NULL;
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int host_addr = 0;
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int net_lsa;
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int i = 0;
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u8 flags;
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@ -1139,10 +1141,15 @@ originate_prefix_rt_lsa_body(struct ospf_area *oa, u16 *length)
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struct ifa *a;
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WALK_LIST(a, ifa->iface->addrs)
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{
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if (((a->pxlen < MAX_PREFIX_LENGTH) && net_lsa) ||
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(a->flags & IA_SECONDARY) ||
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if ((a->flags & IA_SECONDARY) ||
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(a->flags & IA_UNNUMBERED) ||
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(a->scope <= SCOPE_LINK) ||
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(a->scope <= SCOPE_LINK))
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continue;
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if (!vlink_addr)
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vlink_addr = a;
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if (((a->pxlen < MAX_PREFIX_LENGTH) && net_lsa) ||
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configured_stubnet(oa, a))
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continue;
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@ -1150,10 +1157,20 @@ originate_prefix_rt_lsa_body(struct ospf_area *oa, u16 *length)
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put_ipv6_prefix(lsab_alloc(po, IPV6_PREFIX_SPACE(a->pxlen)),
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a->ip, a->pxlen, flags, ifa->cost);
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i++;
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if (flags & OPT_PX_LA)
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host_addr = 1;
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}
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}
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/* FIXME Handle vlinks? see RFC5340, page 38 */
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/* If there are some configured vlinks, add some global address,
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which will be used as a vlink endpoint. */
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if (!EMPTY_LIST(oa->ac->vlink_list) && !host_addr && vlink_addr)
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{
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put_ipv6_prefix(lsab_alloc(po, IPV6_PREFIX_SPACE(MAX_PREFIX_LENGTH)),
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vlink_addr->ip, MAX_PREFIX_LENGTH, OPT_PX_LA, 0);
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i++;
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}
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struct ospf_stubnet_config *sn;
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WALK_LIST(sn, oa->ac->stubnet_list)
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@ -1227,6 +1244,7 @@ prefix_advance(u32 *buf)
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return buf + IPV6_PREFIX_WORDS(pxl);
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}
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/* FIXME eliminate items wit LA bit set? see 4.4.3.9 */
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static void
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add_prefix(struct proto_ospf *po, u32 *px, int offset, int *pxc)
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{
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@ -21,7 +21,7 @@ struct top_hash_entry
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void *lsa_body;
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bird_clock_t inst_t; /* Time of installation into DB */
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ip_addr nh; /* Next hop */
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ip_addr lb; /* Link back */
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ip_addr lb; /* In OSPFv2, link back address. In OSPFv3, any global address in the area useful for vlinks */
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struct ospf_iface *nhi; /* Next hop interface */
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#ifdef OSPFv3
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u32 lb_id; /* Interface ID of link back iface (for bcast or NBMA networks) */
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