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-rw-r--r--doc/bird.sgml22
-rw-r--r--proto/ospf/config.Y7
-rw-r--r--proto/ospf/hello.c2
-rw-r--r--proto/ospf/iface.c6
-rw-r--r--proto/ospf/neighbor.c1
-rw-r--r--proto/ospf/ospf.c6
-rw-r--r--proto/ospf/ospf.h4
-rw-r--r--proto/static/config.Y2
-rw-r--r--proto/static/static.c2
-rw-r--r--proto/static/static.h4
10 files changed, 34 insertions, 22 deletions
diff --git a/doc/bird.sgml b/doc/bird.sgml
index 53d9fcd..1eaf382 100644
--- a/doc/bird.sgml
+++ b/doc/bird.sgml
@@ -1675,7 +1675,7 @@ protocol ospf <name> {
<tag>rx buffer <M>num</M></tag>
This sets the size of buffer used for receiving packets. The buffer should
be bigger than maximal size of any packets. Value NORMAL (default)
- means 2*MTU, value LARGE means maximal allowed packet - 65536.
+ means 2*MTU, value LARGE means maximal allowed packet - 65535.
<tag>type broadcast</tag>
BIRD detects a type of a connected network automatically, but sometimes it's
@@ -1695,6 +1695,14 @@ protocol ospf &lt;name&gt; {
If set, don't send hello to any undefined neighbor. This switch
is ignored on any non-NBMA network. Default is No.
+ <tag>check link <M>switch</M></tag>
+ if set, a hardware link state (reported by OS) is taken into
+ consideration. When a link disappears (e.g. an ethernet cable is
+ unplugged), neighbors are immediately considered unreachable
+ and only the address of the iface (instead of whole network
+ prefix) is propagated. It is possible that some hardware
+ drivers or platforms do not implement this feature. Default: off.
+
<tag>authentication none</tag>
No passwords are sent in OSPF packets. This is the default value.
@@ -2045,8 +2053,8 @@ the next hop of the route is not a neighbor at the moment), Static just
uninstalls the route from the table it is connected to and adds it again as soon
as the destination becomes adjacent again.
-<p>The Static protocol has no configuration options. Instead, the
-definition of the protocol contains a list of static routes:
+<p>The Static protocol does not have many configuration options. The
+definition of the protocol contains mainly a list of static routes:
<descrip>
<tag>route <m/prefix/ via <m/ip/</tag> Static route through
@@ -2056,6 +2064,14 @@ definition of the protocol contains a list of static routes:
<tag>route <m/prefix/ drop|reject|prohibit</tag> Special routes
specifying to drop the packet, return it as unreachable or return
it as administratively prohibited.
+
+ <tag>check link <M>switch</M></tag>
+ The only option of the static protocol. If set, hardware link
+ states of network interfaces are taken into consideration.
+ When link disappears (e.g. ethernet cable is unplugged),
+ static routes directing to that interface are removed. It is
+ possible that some hardware drivers or platforms do not
+ implement this feature. Default: off.
</descrip>
<p>Static routes have no specific attributes.
diff --git a/proto/ospf/config.Y b/proto/ospf/config.Y
index 49d6594..3af879d 100644
--- a/proto/ospf/config.Y
+++ b/proto/ospf/config.Y
@@ -49,7 +49,7 @@ CF_KEYWORDS(OSPF, AREA, OSPF_METRIC1, OSPF_METRIC2, OSPF_TAG, OSPF_ROUTER_ID)
CF_KEYWORDS(BROADCAST, NEIGHBORS, RFC1583COMPAT, STUB, TICK, COST, RETRANSMIT)
CF_KEYWORDS(HELLO, TRANSMIT, PRIORITY, DEAD, NONBROADCAST, POINTOPOINT, TYPE)
CF_KEYWORDS(NONE, SIMPLE, AUTHENTICATION, STRICT, CRYPTOGRAPHIC)
-CF_KEYWORDS(ELIGIBLE, POLL, NETWORKS, HIDDEN, VIRTUAL, LINK)
+CF_KEYWORDS(ELIGIBLE, POLL, NETWORKS, HIDDEN, VIRTUAL, CHECK, LINK)
CF_KEYWORDS(RX, BUFFER, LARGE, NORMAL, STUBNET, HIDDEN, SUMMARY)
CF_KEYWORDS(WAIT, DELAY, LSADB)
@@ -192,7 +192,7 @@ ospf_iface_item:
| TYPE POINTOPOINT { OSPF_PATT->type = OSPF_IT_PTP ; }
| STRICT NONBROADCAST bool { OSPF_PATT->strictnbma = $3 ; }
| STUB bool { OSPF_PATT->stub = $2 ; }
- | LINK bool { OSPF_PATT->use_link = $2 ; }
+ | CHECK LINK bool { OSPF_PATT->check_link = $3; }
| NEIGHBORS '{' ipa_list '}'
| AUTHENTICATION NONE { OSPF_PATT->autype = OSPF_AUTH_NONE ; }
| AUTHENTICATION SIMPLE { OSPF_PATT->autype = OSPF_AUTH_SIMPLE ; }
@@ -274,9 +274,6 @@ ospf_iface_start:
OSPF_PATT->deadc = DEADC_D;
OSPF_PATT->dead = 0;
OSPF_PATT->type = OSPF_IT_UNDEF;
- OSPF_PATT->strictnbma = 0;
- OSPF_PATT->stub = 0;
- OSPF_PATT->use_link = 1;
init_list(&OSPF_PATT->nbma_list);
OSPF_PATT->autype = OSPF_AUTH_NONE;
reset_passwords();
diff --git a/proto/ospf/hello.c b/proto/ospf/hello.c
index 3d7d8de..216dc72 100644
--- a/proto/ospf/hello.c
+++ b/proto/ospf/hello.c
@@ -247,7 +247,7 @@ ospf_hello_send(timer *timer, int poll, struct ospf_neighbor *dirn)
else
ifa = (struct ospf_iface *) timer->data;
- if (ifa->state == OSPF_IS_DOWN)
+ if (ifa->state <= OSPF_IS_LOOP)
return;
if (ifa->stub)
diff --git a/proto/ospf/iface.c b/proto/ospf/iface.c
index 072e1c7..83ea1c2 100644
--- a/proto/ospf/iface.c
+++ b/proto/ospf/iface.c
@@ -334,7 +334,7 @@ ospf_iface_sm(struct ospf_iface *ifa, int event)
break;
case ISM_LOOP:
- if (ifa->sk && ifa->use_link)
+ if (ifa->sk && ifa->check_link)
ospf_iface_chstate(ifa, OSPF_IS_LOOP);
break;
@@ -401,7 +401,7 @@ ospf_iface_add(struct object_lock *lock)
}
/* Do iface UP, unless there is no link and we use link detection */
- ospf_iface_sm(ifa, (ifa->use_link && !(ifa->iface->flags & IF_LINK_UP)) ? ISM_LOOP : ISM_UP);
+ ospf_iface_sm(ifa, (ifa->check_link && !(ifa->iface->flags & IF_LINK_UP)) ? ISM_LOOP : ISM_UP);
}
void
@@ -435,7 +435,7 @@ ospf_iface_new(struct proto_ospf *po, struct iface *iface, struct ifa *addr,
ifa->stub = ospf_iface_stubby(ip, addr);
ifa->ioprob = OSPF_I_OK;
ifa->rxbuf = ip->rxbuf;
- ifa->use_link = ip->use_link;
+ ifa->check_link = ip->check_link;
#ifdef OSPFv2
ifa->autype = ip->autype;
diff --git a/proto/ospf/neighbor.c b/proto/ospf/neighbor.c
index 2563abd..05f024a 100644
--- a/proto/ospf/neighbor.c
+++ b/proto/ospf/neighbor.c
@@ -284,6 +284,7 @@ can_do_adj(struct ospf_neighbor *n)
switch (ifa->state)
{
case OSPF_IS_DOWN:
+ case OSPF_IS_LOOP:
bug("%s: Iface %s in down state?", p->name, ifa->iface->name);
break;
case OSPF_IS_WAITING:
diff --git a/proto/ospf/ospf.c b/proto/ospf/ospf.c
index d9d8b7c..026d975 100644
--- a/proto/ospf/ospf.c
+++ b/proto/ospf/ospf.c
@@ -759,12 +759,12 @@ ospf_reconfigure(struct proto *p, struct proto_config *c)
}
/* LINK */
- if (oldip->use_link != newip->use_link)
+ if (oldip->check_link != newip->check_link)
{
- ifa->use_link = newip->use_link;
+ ifa->check_link = newip->check_link;
if (!(ifa->iface->flags & IF_LINK_UP))
- ospf_iface_sm(ifa, ifa->use_link ? ISM_LOOP : ISM_UNLOOP);
+ ospf_iface_sm(ifa, ifa->check_link ? ISM_LOOP : ISM_UNLOOP);
}
/* strict nbma */
diff --git a/proto/ospf/ospf.h b/proto/ospf/ospf.h
index 341d9a7..3345d4f 100644
--- a/proto/ospf/ospf.h
+++ b/proto/ospf/ospf.h
@@ -246,7 +246,7 @@ struct ospf_iface
u8 sk_spf; /* Socket is a member of SPFRouters group */
u8 sk_dr; /* Socket is a member of DRouters group */
u16 rxbuf; /* Buffer size */
- u8 use_link; /* Whether iface link change is used */
+ u8 check_link; /* Whether iface link change is used */
};
struct ospf_md5
@@ -755,7 +755,7 @@ struct ospf_iface_patt
u32 stub;
u32 vid;
u16 rxbuf;
- u8 use_link;
+ u8 check_link;
#define OSPF_RXBUF_NORMAL 0
#define OSPF_RXBUF_LARGE 1
#define OSPF_RXBUF_MINSIZE 256 /* Minimal allowed size */
diff --git a/proto/static/config.Y b/proto/static/config.Y
index 9f4d7da..2849015 100644
--- a/proto/static/config.Y
+++ b/proto/static/config.Y
@@ -32,7 +32,7 @@ static_proto_start: proto_start STATIC {
static_proto:
static_proto_start proto_name '{'
| static_proto proto_item ';'
- | static_proto CHECK LINK ';' { STATIC_CFG->check = STATIC_CHECK_LINK; }
+ | static_proto CHECK LINK bool ';' { STATIC_CFG->check_link = $4; }
| static_proto stat_route ';'
;
diff --git a/proto/static/static.c b/proto/static/static.c
index 4f879bd..4ee2cbd 100644
--- a/proto/static/static.c
+++ b/proto/static/static.c
@@ -72,7 +72,7 @@ static_decide(struct static_config *cf, struct static_route *r)
if (!ifa)
return 0;
- if ((cf->check == STATIC_CHECK_LINK) && !(ifa->flags & IF_LINK_UP))
+ if (cf->check_link && !(ifa->flags & IF_LINK_UP))
return 0;
return 1;
diff --git a/proto/static/static.h b/proto/static/static.h
index 40da74c..5c31e00 100644
--- a/proto/static/static.h
+++ b/proto/static/static.h
@@ -13,11 +13,9 @@ struct static_config {
struct proto_config c;
list iface_routes; /* Routes to search on interface events */
list other_routes; /* Routes hooked to neighbor cache and reject routes */
- int check; /* Condition for route install */
+ int check_link; /* Whether iface link state is used */
};
-#define STATIC_CHECK_NONE 0
-#define STATIC_CHECK_LINK 1
void static_init_config(struct static_config *);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-22 01:39:50 +0100