diff options
Diffstat (limited to 'nest')
| -rw-r--r-- | nest/iface.c | 19 | ||||
| -rw-r--r-- | nest/iface.h | 25 | ||||
| -rw-r--r-- | nest/neighbor.c | 2 |
3 files changed, 22 insertions, 24 deletions
diff --git a/nest/iface.c b/nest/iface.c index 19b19ed..3cfc626 100644 --- a/nest/iface.c +++ b/nest/iface.c @@ -51,7 +51,7 @@ ifa_dump(struct ifa *a) debug("\t%I, net %I/%-2d bc %I -> %I%s%s%s\n", a->ip, a->prefix, a->pxlen, a->brd, a->opposite, (a->flags & IF_UP) ? "" : " DOWN", (a->flags & IA_PRIMARY) ? "" : " SEC", - (a->flags & IA_UNNUMBERED) ? " UNNUM" : ""); + (a->flags & IA_PEER) ? "PEER" : ""); } /** @@ -474,7 +474,7 @@ ifa_update(struct ifa *a) ipa_equal(b->brd, a->brd) && ipa_equal(b->opposite, a->opposite) && b->scope == a->scope && - !((b->flags ^ a->flags) & IA_UNNUMBERED)) + !((b->flags ^ a->flags) & IA_PEER)) { b->flags |= IF_UPDATED; return b; @@ -543,7 +543,7 @@ auto_router_id(void) if ((i->flags & IF_ADMIN_UP) && !(i->flags & (IF_IGNORE | IF_SHUTDOWN)) && i->addr && - !(i->addr->flags & IA_UNNUMBERED) && + !(i->addr->flags & IA_PEER) && (!j || ipa_to_u32(i->addr->ip) < ipa_to_u32(j->addr->ip))) j = i; if (!j) @@ -602,7 +602,7 @@ iface_patt_match(struct iface_patt *ifp, struct iface *i, struct ifa *a) if (ipa_in_net(a->ip, p->prefix, p->pxlen)) return pos; - if ((a->flags & IA_UNNUMBERED) && + if ((a->flags & IA_PEER) && ipa_in_net(a->opposite, p->prefix, p->pxlen)) return pos; @@ -671,23 +671,16 @@ iface_patts_equal(list *a, list *b, int (*comp)(struct iface_patt *, struct ifac static void if_show_addr(struct ifa *a) { - byte broad[STD_ADDRESS_P_LENGTH + 16]; byte opp[STD_ADDRESS_P_LENGTH + 16]; - if (ipa_nonzero(a->brd)) - bsprintf(broad, ", broadcast %I", a->brd); - else - broad[0] = 0; if (ipa_nonzero(a->opposite)) bsprintf(opp, ", opposite %I", a->opposite); else opp[0] = 0; - cli_msg(-1003, "\t%I/%d (%s%s%s, scope %s%s)", + cli_msg(-1003, "\t%I/%d (%s%s, scope %s)", a->ip, a->pxlen, (a->flags & IA_PRIMARY) ? "Primary" : (a->flags & IA_SECONDARY) ? "Secondary" : "Unselected", - broad, opp, - ip_scope_text(a->scope), - (a->flags & IA_UNNUMBERED) ? ", unnumbered" : ""); + opp, ip_scope_text(a->scope)); } void diff --git a/nest/iface.h b/nest/iface.h index 6b47a62..5906e21 100644 --- a/nest/iface.h +++ b/nest/iface.h @@ -51,9 +51,23 @@ struct iface { #define IA_PRIMARY 0x10000 /* This address is primary */ #define IA_SECONDARY 0x20000 /* This address has been reported as secondary by the kernel */ -#define IA_UNNUMBERED 0x40000 /* This address belongs to an unnumbered device */ +#define IA_PEER 0x40000 /* A peer/ptp address */ +#define IA_HOST 0x80000 /* A host/loopback address */ #define IA_FLAGS 0xff0000 +/* + * There are three kinds of addresses in BIRD: + * - Standard (prefix-based) addresses, these may define ifa.opposite (for /30 or /31). + * - Peer/ptp addresses, without common prefix for ifa.ip and ifa.opposite. + * ifa.opposite is defined and ifa.prefix/pxlen == ifa.opposite/32 (for simplicity). + * - Host addresses, with ifa.prefix/pxlen == ifa.ip/32 (or /128). + * May be considered a special case of standard addresses. + * + * Peer addresses (AFAIK) do not exist in IPv6. Linux alos supports generalized peer + * address (with pxlen < 32 and ifa.ip outside prefix), we do not support that. + */ + + #define IF_JUST_CREATED 0x10000000 /* Send creation event as soon as possible */ #define IF_TMP_DOWN 0x20000000 /* Temporary shutdown due to interface reconfiguration */ #define IF_UPDATED 0x40000000 /* Touched in last scan */ @@ -85,15 +99,6 @@ struct iface *if_find_by_index(unsigned); struct iface *if_find_by_name(char *); void ifa_recalc_all_primary_addresses(void); -static inline int -ifa_match_addr(struct ifa *ifa, ip_addr addr) -{ - if (ifa->flags & IA_UNNUMBERED) - return ipa_equal(addr, ifa->opposite); - else - return ipa_in_net(addr, ifa->prefix, ifa->pxlen); -} - /* The Neighbor Cache */ typedef struct neighbor { diff --git a/nest/neighbor.c b/nest/neighbor.c index 1e0780c..1a5ac21 100644 --- a/nest/neighbor.c +++ b/nest/neighbor.c @@ -66,7 +66,7 @@ if_connected(ip_addr *a, struct iface *i) /* -1=error, 1=match, 0=no match */ { if (ipa_equal(*a, b->ip)) return SCOPE_HOST; - if (b->flags & IA_UNNUMBERED) + if (b->flags & IA_PEER) { if (ipa_equal(*a, b->opposite)) return b->scope; |