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| author | Martin Mares <mj@ucw.cz> | 1999-03-02 18:28:06 +0100 |
|---|---|---|
| committer | Martin Mares <mj@ucw.cz> | 1999-03-02 18:28:06 +0100 |
| commit | bcbd8cc3be670a96e1405b896cff4be0912ba379 (patch) | |
| tree | 6cce0add45cddca117b0b34278f732482245e10d /nest/iface.h | |
| parent | 25287d6f7e687c77704816e565529960c65e3250 (diff) | |
| download | bird-bcbd8cc3be670a96e1405b896cff4be0912ba379.tar bird-bcbd8cc3be670a96e1405b896cff4be0912ba379.zip | |
Interface logic changes:
o Introduced IF_LINK_UP flag corresponding to real link state.
o Allowed addressless interfaces.
o IF_UP is now automatically calculated and set iff the interface
is administratively up, has link up and has an IP address assigned.
It may be IF_IGNORED, though (as in case of the loopback).
o Any changes which include up/down transition are considered small
enough to not provoke artificial upping and downing of the interface.
o When an interface disappears (i.e., it wasn't seen in the last scan),
we announce this change only once.
o IF_LOOPBACK implies IF_IGNORE.
Diffstat (limited to 'nest/iface.h')
| -rw-r--r-- | nest/iface.h | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/nest/iface.h b/nest/iface.h index 378cf3d..fcad718 100644 --- a/nest/iface.h +++ b/nest/iface.h @@ -21,7 +21,7 @@ struct iface { unsigned flags; unsigned mtu; unsigned index; /* OS-dependent interface index */ - ip_addr ip; /* IP address of this host */ + ip_addr ip; /* IP address of this host (0=unset) */ ip_addr prefix; /* Network prefix */ unsigned pxlen; /* Prefix length */ ip_addr brd; /* Broadcast address */ @@ -29,7 +29,7 @@ struct iface { struct neighbor *neigh; /* List of neighbors on this interface */ }; -#define IF_UP 1 +#define IF_UP 1 /* IF_LINK_UP, not IF_IGNORE and IP address known */ #define IF_MULTIACCESS 2 #define IF_UNNUMBERED 4 #define IF_BROADCAST 8 @@ -38,7 +38,8 @@ struct iface { #define IF_ADMIN_DOWN 64 #define IF_LOOPBACK 128 #define IF_IGNORE 256 -#define IF_UPDATED 0x1000 /* Touched in last scan */ +#define IF_LINK_UP 512 +#define IF_UPDATED 0x40000000 /* Touched in last scan */ /* Interface change events */ |