diff options
Diffstat (limited to 'nest/iface.h')
| -rw-r--r-- | nest/iface.h | 25 |
1 files changed, 15 insertions, 10 deletions
diff --git a/nest/iface.h b/nest/iface.h index 6b47a620..5906e218 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 { |