diff options
| -rw-r--r-- | lib/if.h | 6 | ||||
| -rw-r--r-- | ospfd/ospf_vty.c | 67 | ||||
| -rw-r--r-- | zebra/connected.c | 92 | ||||
| -rw-r--r-- | zebra/connected.h | 8 | ||||
| -rw-r--r-- | zebra/if_netlink.c | 15 | ||||
| -rw-r--r-- | zebra/interface.c | 14 | ||||
| -rw-r--r-- | zebra/zebra_dplane.c | 5 |
7 files changed, 83 insertions, 124 deletions
@@ -383,16 +383,12 @@ struct connected { /* N.B. the ZEBRA_IFA_PEER flag should be set if and only if a peer address has been configured. If this flag is set, the destination field must contain the peer address. - Otherwise, if this flag is not set, the destination address - will either contain a broadcast address or be NULL. */ /* Address of connected network. */ struct prefix *address; - /* Peer or Broadcast address, depending on whether ZEBRA_IFA_PEER is - set. - Note: destination may be NULL if ZEBRA_IFA_PEER is not set. */ + /* Peer address, if ZEBRA_IFA_PEER is set, otherwise NULL */ struct prefix *destination; /* Label for Linux 2.2.X and upper. */ diff --git a/ospfd/ospf_vty.c b/ospfd/ospf_vty.c index 2564c6f330..8fa91f500c 100644 --- a/ospfd/ospf_vty.c +++ b/ospfd/ospf_vty.c @@ -3442,6 +3442,9 @@ static void show_ip_ospf_interface_sub(struct vty *vty, struct ospf *ospf, else vty_out(vty, " This interface is UNNUMBERED,"); } else { + struct in_addr dest; + const char *dstr; + /* Show OSPF interface information. */ if (use_json) { json_object_string_add( @@ -3455,46 +3458,40 @@ static void show_ip_ospf_interface_sub(struct vty *vty, struct ospf *ospf, inet_ntoa(oi->address->u.prefix4), oi->address->prefixlen); - if (oi->connected->destination - || oi->type == OSPF_IFTYPE_VIRTUALLINK) { - struct in_addr *dest; - const char *dstr; - - if (CONNECTED_PEER(oi->connected) - || oi->type == OSPF_IFTYPE_VIRTUALLINK) - dstr = "Peer"; - else - dstr = "Broadcast"; + /* For Vlinks, showing the peer address is + * probably more informative than the local + * interface that is being used */ + if (oi->type == OSPF_IFTYPE_VIRTUALLINK) { + dstr = "Peer"; + dest = oi->vl_data->peer_addr; + } else if (CONNECTED_PEER(oi->connected) + && oi->connected->destination) { + dstr = "Peer"; + dest = oi->connected->destination->u.prefix4; + } else { + dstr = "Broadcast"; + dest.s_addr = ipv4_broadcast_addr( + oi->connected->address->u.prefix4.s_addr, + oi->connected->address->prefixlen); + } - /* For Vlinks, showing the peer address is - * probably more - * * * * * informative than the local - * interface that is being used - * * * * */ + if (use_json) { + json_object_string_add( + json_interface_sub, + "ospfIfType", dstr); if (oi->type == OSPF_IFTYPE_VIRTUALLINK) - dest = &oi->vl_data->peer_addr; + json_object_string_add( + json_interface_sub, + "vlinkPeer", + inet_ntoa(dest)); else - dest = &oi->connected->destination->u - .prefix4; - - if (use_json) { json_object_string_add( json_interface_sub, - "ospfIfType", dstr); - if (oi->type == OSPF_IFTYPE_VIRTUALLINK) - json_object_string_add( - json_interface_sub, - "vlinkPeer", - inet_ntoa(*dest)); - else - json_object_string_add( - json_interface_sub, - "localIfUsed", - inet_ntoa(*dest)); - } else - vty_out(vty, " %s %s,", dstr, - inet_ntoa(*dest)); - } + "localIfUsed", + inet_ntoa(dest)); + } else + vty_out(vty, " %s %s,", dstr, + inet_ntoa(dest)); } if (use_json) { json_object_string_add(json_interface_sub, "area", diff --git a/zebra/connected.c b/zebra/connected.c index 4101a4bf24..ffc991861c 100644 --- a/zebra/connected.c +++ b/zebra/connected.c @@ -120,10 +120,6 @@ struct connected *connected_check_ptp(struct interface *ifp, struct connected *ifc; struct listnode *node; - /* ignore broadcast addresses */ - if (p->prefixlen != IPV4_MAX_PREFIXLEN) - d = NULL; - for (ALL_LIST_ELEMENTS_RO(ifp->connected, node, ifc)) { if (!prefix_same(ifc->address, p)) continue; @@ -143,6 +139,12 @@ static int connected_same(struct connected *ifc1, struct connected *ifc2) if (ifc1->ifp != ifc2->ifp) return 0; + if (ifc1->flags != ifc2->flags) + return 0; + + if (ifc1->conf != ifc2->conf) + return 0; + if (ifc1->destination) if (!ifc2->destination) return 0; @@ -154,12 +156,6 @@ static int connected_same(struct connected *ifc1, struct connected *ifc2) if (!prefix_same(ifc1->destination, ifc2->destination)) return 0; - if (ifc1->flags != ifc2->flags) - return 0; - - if (ifc1->conf != ifc2->conf) - return 0; - return 1; } @@ -276,7 +272,7 @@ void connected_up(struct interface *ifp, struct connected *ifc) /* Add connected IPv4 route to the interface. */ void connected_add_ipv4(struct interface *ifp, int flags, struct in_addr *addr, - uint16_t prefixlen, struct in_addr *broad, + uint16_t prefixlen, struct in_addr *dest, const char *label, uint32_t metric) { struct prefix_ipv4 *p; @@ -302,59 +298,39 @@ void connected_add_ipv4(struct interface *ifp, int flags, struct in_addr *addr, : prefixlen; ifc->address = (struct prefix *)p; - /* If there is broadcast or peer address. */ - if (broad) { - p = prefix_ipv4_new(); - p->family = AF_INET; - p->prefix = *broad; - p->prefixlen = prefixlen; - ifc->destination = (struct prefix *)p; - + /* If there is a peer address. */ + if (CONNECTED_PEER(ifc)) { /* validate the destination address */ - if (CONNECTED_PEER(ifc)) { - if (IPV4_ADDR_SAME(addr, broad)) + if (dest) { + p = prefix_ipv4_new(); + p->family = AF_INET; + p->prefix = *dest; + p->prefixlen = prefixlen; + ifc->destination = (struct prefix *)p; + + if (IPV4_ADDR_SAME(addr, dest)) flog_warn( EC_ZEBRA_IFACE_SAME_LOCAL_AS_PEER, "warning: interface %s has same local and peer " "address %s, routing protocols may malfunction", ifp->name, inet_ntoa(*addr)); } else { - if (broad->s_addr - != ipv4_broadcast_addr(addr->s_addr, prefixlen)) { - char buf[2][INET_ADDRSTRLEN]; - struct in_addr bcalc; - bcalc.s_addr = ipv4_broadcast_addr(addr->s_addr, - prefixlen); - flog_warn( - EC_ZEBRA_BCAST_ADDR_MISMATCH, - "warning: interface %s broadcast addr %s/%d != " - "calculated %s, routing protocols may malfunction", - ifp->name, - inet_ntop(AF_INET, broad, buf[0], - sizeof(buf[0])), - prefixlen, - inet_ntop(AF_INET, &bcalc, buf[1], - sizeof(buf[1]))); - } - } - - } else { - if (CHECK_FLAG(ifc->flags, ZEBRA_IFA_PEER)) { zlog_debug( "warning: %s called for interface %s " "with peer flag set, but no peer address supplied", __func__, ifp->name); UNSET_FLAG(ifc->flags, ZEBRA_IFA_PEER); } - - /* no broadcast or destination address was supplied */ - if ((prefixlen == IPV4_MAX_PREFIXLEN) && if_is_pointopoint(ifp)) - zlog_debug( - "warning: PtP interface %s with addr %s/%d needs a " - "peer address", - ifp->name, inet_ntoa(*addr), prefixlen); } + /* no destination address was supplied */ + if (!dest && (prefixlen == IPV4_MAX_PREFIXLEN) + && if_is_pointopoint(ifp)) + zlog_debug( + "warning: PtP interface %s with addr %s/%d needs a " + "peer address", + ifp->name, inet_ntoa(*addr), prefixlen); + /* Label of this address. */ if (label) ifc->label = XSTRDUP(MTYPE_CONNECTED_LABEL, label); @@ -464,7 +440,7 @@ static void connected_delete_helper(struct connected *ifc, struct prefix *p) /* Delete connected IPv4 route to the interface. */ void connected_delete_ipv4(struct interface *ifp, int flags, struct in_addr *addr, uint16_t prefixlen, - struct in_addr *broad) + struct in_addr *dest) { struct prefix p, d; struct connected *ifc; @@ -475,10 +451,10 @@ void connected_delete_ipv4(struct interface *ifp, int flags, p.prefixlen = CHECK_FLAG(flags, ZEBRA_IFA_PEER) ? IPV4_MAX_PREFIXLEN : prefixlen; - if (broad) { + if (dest) { memset(&d, 0, sizeof(struct prefix)); d.family = AF_INET; - d.u.prefix4 = *broad; + d.u.prefix4 = *dest; d.prefixlen = prefixlen; ifc = connected_check_ptp(ifp, &p, &d); } else @@ -489,7 +465,7 @@ void connected_delete_ipv4(struct interface *ifp, int flags, /* Add connected IPv6 route to the interface. */ void connected_add_ipv6(struct interface *ifp, int flags, struct in6_addr *addr, - struct in6_addr *broad, uint16_t prefixlen, + struct in6_addr *dest, uint16_t prefixlen, const char *label, uint32_t metric) { struct prefix_ipv6 *p; @@ -514,10 +490,10 @@ void connected_add_ipv6(struct interface *ifp, int flags, struct in6_addr *addr, p->prefixlen = prefixlen; ifc->address = (struct prefix *)p; - if (broad) { + if (dest) { p = prefix_ipv6_new(); p->family = AF_INET6; - IPV6_ADDR_COPY(&p->prefix, broad); + IPV6_ADDR_COPY(&p->prefix, dest); p->prefixlen = prefixlen; ifc->destination = (struct prefix *)p; } else { @@ -547,7 +523,7 @@ void connected_add_ipv6(struct interface *ifp, int flags, struct in6_addr *addr, } void connected_delete_ipv6(struct interface *ifp, struct in6_addr *address, - struct in6_addr *broad, uint16_t prefixlen) + struct in6_addr *dest, uint16_t prefixlen) { struct prefix p, d; struct connected *ifc; @@ -557,10 +533,10 @@ void connected_delete_ipv6(struct interface *ifp, struct in6_addr *address, memcpy(&p.u.prefix6, address, sizeof(struct in6_addr)); p.prefixlen = prefixlen; - if (broad) { + if (dest) { memset(&d, 0, sizeof(struct prefix)); d.family = AF_INET6; - IPV6_ADDR_COPY(&d.u.prefix6, broad); + IPV6_ADDR_COPY(&d.u.prefix6, dest); d.prefixlen = prefixlen; ifc = connected_check_ptp(ifp, &p, &d); } else diff --git a/zebra/connected.h b/zebra/connected.h index 7672bec006..14f6cb2db0 100644 --- a/zebra/connected.h +++ b/zebra/connected.h @@ -40,12 +40,12 @@ extern struct connected *connected_check_ptp(struct interface *ifp, extern void connected_add_ipv4(struct interface *ifp, int flags, struct in_addr *addr, uint16_t prefixlen, - struct in_addr *broad, const char *label, + struct in_addr *dest, const char *label, uint32_t metric); extern void connected_delete_ipv4(struct interface *ifp, int flags, struct in_addr *addr, uint16_t prefixlen, - struct in_addr *broad); + struct in_addr *dest); extern void connected_delete_ipv4_unnumbered(struct connected *ifc); @@ -53,12 +53,12 @@ extern void connected_up(struct interface *ifp, struct connected *ifc); extern void connected_down(struct interface *ifp, struct connected *ifc); extern void connected_add_ipv6(struct interface *ifp, int flags, - struct in6_addr *address, struct in6_addr *broad, + struct in6_addr *address, struct in6_addr *dest, uint16_t prefixlen, const char *label, uint32_t metric); extern void connected_delete_ipv6(struct interface *ifp, struct in6_addr *address, - struct in6_addr *broad, uint16_t prefixlen); + struct in6_addr *dest, uint16_t prefixlen); extern int connected_is_unnumbered(struct interface *); diff --git a/zebra/if_netlink.c b/zebra/if_netlink.c index 2c536c5d1f..e157c2d70a 100644 --- a/zebra/if_netlink.c +++ b/zebra/if_netlink.c @@ -888,11 +888,13 @@ static int netlink_address_ctx(const struct zebra_dplane_ctx *ctx) p = dplane_ctx_get_intf_dest(ctx); addattr_l(&req.n, sizeof(req), IFA_ADDRESS, &p->u.prefix, bytelen); - } else if (cmd == RTM_NEWADDR && - dplane_ctx_intf_has_dest(ctx)) { - p = dplane_ctx_get_intf_dest(ctx); + } else if (cmd == RTM_NEWADDR) { + struct in_addr broad = { + .s_addr = ipv4_broadcast_addr(p->u.prefix4.s_addr, + p->prefixlen) + }; addattr_l(&req.n, sizeof(req), IFA_BROADCAST, - &p->u.prefix, bytelen); + &broad, bytelen); } } @@ -1065,7 +1067,7 @@ int netlink_interface_addr(struct nlmsghdr *h, ns_id_t ns_id, int startup) else connected_delete_ipv4( ifp, flags, (struct in_addr *)addr, - ifa->ifa_prefixlen, (struct in_addr *)broad); + ifa->ifa_prefixlen, NULL); } if (ifa->ifa_family == AF_INET6) { if (ifa->ifa_prefixlen > IPV6_MAX_BITLEN) { @@ -1091,8 +1093,7 @@ int netlink_interface_addr(struct nlmsghdr *h, ns_id_t ns_id, int startup) metric); } else connected_delete_ipv6(ifp, (struct in6_addr *)addr, - (struct in6_addr *)broad, - ifa->ifa_prefixlen); + NULL, ifa->ifa_prefixlen); } return 0; diff --git a/zebra/interface.c b/zebra/interface.c index a2f80aff4e..6486c01430 100644 --- a/zebra/interface.c +++ b/zebra/interface.c @@ -1081,12 +1081,10 @@ static void connected_dump_vty(struct vty *vty, struct connected *connected) vty_out(vty, "/%d", p->prefixlen); /* If there is destination address, print it. */ - if (connected->destination) { - vty_out(vty, - (CONNECTED_PEER(connected) ? " peer " : " broadcast ")); + if (CONNECTED_PEER(connected) && connected->destination) { + vty_out(vty, " peer "); prefix_vty_out(vty, connected->destination); - if (CONNECTED_PEER(connected)) - vty_out(vty, "/%d", connected->destination->prefixlen); + vty_out(vty, "/%d", connected->destination->prefixlen); } if (CHECK_FLAG(connected->flags, ZEBRA_IFA_SECONDARY)) @@ -2684,12 +2682,6 @@ static int ip_address_install(struct vty *vty, struct interface *ifp, p = prefix_ipv4_new(); *p = pp; ifc->destination = (struct prefix *)p; - } else if (p->prefixlen <= IPV4_MAX_PREFIXLEN - 2) { - p = prefix_ipv4_new(); - *p = lp; - p->prefix.s_addr = ipv4_broadcast_addr(p->prefix.s_addr, - p->prefixlen); - ifc->destination = (struct prefix *)p; } /* Label. */ diff --git a/zebra/zebra_dplane.c b/zebra/zebra_dplane.c index 5414502fa3..512a9b4021 100644 --- a/zebra/zebra_dplane.c +++ b/zebra/zebra_dplane.c @@ -134,7 +134,7 @@ struct dplane_intf_info { #define DPLANE_INTF_CONNECTED (1 << 0) /* Connected peer, p2p */ #define DPLANE_INTF_SECONDARY (1 << 1) #define DPLANE_INTF_BROADCAST (1 << 2) -#define DPLANE_INTF_HAS_DEST (1 << 3) +#define DPLANE_INTF_HAS_DEST DPLANE_INTF_CONNECTED #define DPLANE_INTF_HAS_LABEL (1 << 4) /* Interface address/prefix */ @@ -2022,9 +2022,6 @@ static enum zebra_dplane_result intf_addr_update_internal( ctx->u.intf.dest_prefix = *(ifc->destination); ctx->u.intf.flags |= (DPLANE_INTF_CONNECTED | DPLANE_INTF_HAS_DEST); - } else if (ifc->destination) { - ctx->u.intf.dest_prefix = *(ifc->destination); - ctx->u.intf.flags |= DPLANE_INTF_HAS_DEST; } if (CHECK_FLAG(ifc->flags, ZEBRA_IFA_SECONDARY)) |