Commit e3bc10fd authored by Ondřej Filip's avatar Ondřej Filip

Added stub interface. (Interface which is propagated to OSPF but

it does not sends nor listens packets.)

I added some new options, please look at it and look into doc if it's OK.
parent 5ddec4e6
......@@ -1014,6 +1014,7 @@ protocol ospf <name> {
interface <interface pattern>
{
cost <num>;
stub <switch>;
hello <num>;
poll <num>;
retransmit <num>;
......@@ -1060,6 +1061,10 @@ protocol ospf <name> {
<tag>cost <M>num</M></tag>
Specifies output cost (metric) of an interface. Default value is 10.
<tag>stub <M>switch</M></tag>
If set to interface it does not listen to any packet and does not send
any hello. Default value is no.
<tag>hello <M>num</M></tag>
Specifies interval in seconds between sending of Hello messages. Beware, all
routers on the same network need to have the same hello interval.
......@@ -1093,13 +1098,17 @@ protocol ospf &lt;name&gt; {
convenient to force use of a different type manually.
On broadcast networks, flooding and Hello messages are sent using multicasts (a single packet for all the neighbors).
<tag>type pointopoint</tag>
Point-to-point networks connect just 2 routers together. No election
is performed there which reduces the number of messages sent.
<tag>type nonbroadcast</tag>
On nonbroadcast networks, the packets are sent to each neighbor
separately because of lack of multicast capabilities.
<tag>type pointopoint</tag>
Point-to-point networks connect just 2 routers together. No election
is performed there which reduces the number of messages sent.
<tag>strict nonbroadcast <M>switch</M></tag>
If set, don't send hello to any undefined neighbor. This switch
is ignored on on any non-NBMA network. Default is No.
<tag>authentication none</tag>
No passwords are sent in OSPF packets. This is the default value.
......@@ -1116,10 +1125,6 @@ protocol ospf &lt;name&gt; {
A set of neighbors to which Hello messages on nonbroadcast networks
are to be sent. Some of them could be marked as eligible.
<tag>strict nonbroadcast <M>switch</M></tag>
If set, don't send hello to any undefined neighbor. This switch
is ignored on on any non-NBMA network. Default is No.
</descrip>
<sect1>Attributes
......@@ -1162,13 +1167,17 @@ protocol ospf MyOSPF {
interface "ppp*" {
cost 100;
};
interface "arc0" {
cost 10;
stub yes;
};
};
area 120 {
stub yes;
interface "-arc0" , "arc*" {
type nonbroadcast;
authentication none;
strict nonbroadcast no;
strict nonbroadcast yes;
wait 120;
poll 40;
dead count 8;
......
......@@ -88,6 +88,7 @@ ospf_iface_item:
| TYPE NONBROADCAST { OSPF_PATT->type = OSPF_IT_NBMA ; }
| TYPE POINTOPOINT { OSPF_PATT->type = OSPF_IT_PTP ; }
| STRICT NONBROADCAST bool { OSPF_PATT->strictnbma = $3 ; }
| STUB bool { OSPF_PATT->stub = $2 ; }
| NEIGHBORS '{' ipa_list '}'
| AUTHENTICATION NONE { OSPF_PATT->autype=AU_NONE ; }
| AUTHENTICATION SIMPLE { OSPF_PATT->autype=AU_SIMPLE ; }
......@@ -137,6 +138,7 @@ ospf_iface_start:
OSPF_PATT->deadc = DEADC_D;
OSPF_PATT->type = OSPF_IT_UNDEF;
OSPF_PATT->strictnbma = 0;
OSPF_PATT->stub = 0;
init_list(&OSPF_PATT->nbma_list);
OSPF_PATT->autype=AU_NONE;
}
......
......@@ -249,6 +249,8 @@ hello_send(timer *timer,int poll, struct ospf_neighbor *dirn)
if(timer==NULL) ifa=dirn->ifa;
else ifa=(struct ospf_iface *)timer->data;
if(ifa->stub) return; /* Don't send any packet on stub iface */
p=(struct proto *)(ifa->proto);
DBG("%s: Hello/Poll timer fired on interface %s.\n",
p->name, ifa->iface->name);
......
......@@ -370,7 +370,8 @@ ospf_iface_info(struct ospf_iface *ifa)
cli_msg(-1015,"Interface \"%s\":", ifa->iface->name);
cli_msg(-1015,"\tArea: %I (%u)", ifa->oa->areaid, ifa->oa->areaid);
cli_msg(-1015,"\tType: %s %s", ospf_it[ifa->type], strict);
cli_msg(-1015,"\tState: %s", ospf_is[ifa->state]);
cli_msg(-1015,"\tState: %s %s", ospf_is[ifa->state],
ifa->stub ? "(stub)" : "");
cli_msg(-1015,"\tPriority: %u", ifa->priority);
cli_msg(-1015,"\tCost: %u", ifa->cost);
cli_msg(-1015,"\tHello timer: %u", ifa->helloint);
......@@ -429,6 +430,7 @@ ospf_ifa_add(struct object_lock *lock)
ifa->strictnbma=ip->strictnbma;
ifa->waitint=ip->waitint;
ifa->deadc=ip->deadc;
ifa->stub=ip->stub;
ifa->autype=ip->autype;
memcpy(ifa->aukey,ip->password,8);
ifa->options=2; /* FIXME what options? */
......
......@@ -558,14 +558,30 @@ ospf_reconfigure(struct proto *p, struct proto_config *c)
{
ifa->strictnbma=ip2->strictnbma;
OSPF_TRACE(D_EVENTS,
"Interface %s is now strict NBMA",
"Interface %s is now strict NBMA.",
ifa->iface->name);
}
if((ip1->strictnbma!=0)&&(ip2->strictnbma==0))
{
ifa->strictnbma=ip2->strictnbma;
OSPF_TRACE(D_EVENTS,
"Interface %s is no longer strict NBMA",
"Interface %s is no longer strict NBMA.",
ifa->iface->name);
}
/* stub */
if((ip1->stub==0)&&(ip2->stub!=0))
{
ifa->stub=ip2->stub;
OSPF_TRACE(D_EVENTS,
"Interface %s is now stub.",
ifa->iface->name);
}
if((ip1->stub!=0)&&(ip2->stub==0))
{
ifa->stub=ip2->stub;
OSPF_TRACE(D_EVENTS,
"Interface %s is no longer stub.",
ifa->iface->name);
}
......
......@@ -103,6 +103,7 @@ struct ospf_iface {
u32 bdrid;
u8 type; /* OSPF view of type */
u8 strictnbma; /* Can I talk with unknown neighbors? */
u8 stub; /* Inactive interface */
#define OSPF_IT_BCAST 0
#define OSPF_IT_NBMA 1
#define OSPF_IT_PTP 2
......@@ -390,6 +391,7 @@ struct ospf_iface_patt {
int type;
int autype;
int strictnbma;
int stub;
#define AU_NONE 0
#define AU_SIMPLE 1
#define AU_CRYPT 2
......
......@@ -84,6 +84,8 @@ ospf_rx_hook(sock *sk, int size)
int i;
u8 *pu8;
if(ifa->stub) return(1);
DBG("%s: RX_Hook called on interface %s.\n",p->name, sk->iface->name);
ps = (struct ospf_packet *) ipv4_skip_header(sk->rbuf, &size);
......
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