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/*
* BIRD -- Protocols
*
* (c) 1998--1999 Martin Mares <mj@ucw.cz>
*
* Can be freely distributed and used under the terms of the GNU GPL.
*/
#define LOCAL_DEBUG
#include <string.h>
#include "nest/bird.h"
#include "nest/protocol.h"
#include "lib/resource.h"
#include "lib/lists.h"
#include "conf/conf.h"
#include "nest/route.h"
#include "nest/iface.h"
list protocol_list;
list proto_list;
list inactive_proto_list;
void *
proto_new(struct proto_config *c, unsigned size)
{
struct protocol *pr = c->proto;
struct proto *p = cfg_allocz(size); /* FIXME: Allocate from global pool */
p->cf = c;
p->debug = c->debug;
p->preference = c->preference;
p->disabled = c->disabled;
p->proto = pr;
p->pool = rp_new(&root_pool, c->name);
return p;
}
void *
proto_config_new(struct protocol *pr, unsigned size)
{
struct proto_config *c = cfg_allocz(size);
add_tail(&new_config->protos, &c->n);
c->global = new_config;
c->proto = pr;
c->debug = pr->debug;
c->name = pr->name;
return c;
}
void
protos_preconfig(struct config *c)
{
struct protocol *p;
init_list(&proto_list);
init_list(&inactive_proto_list);
debug("Protocol preconfig:");
WALK_LIST(p, protocol_list)
{
debug(" %s", p->name);
if (p->preconfig)
p->preconfig(p, c);
}
debug("\n");
}
void
protos_postconfig(struct config *c)
{
struct proto_config *x;
struct protocol *p;
debug("Protocol postconfig:");
WALK_LIST(x, c->protos)
{
debug(" %s", x->name);
p = x->proto;
if (p->postconfig)
p->postconfig(x);
}
debug("\n");
}
void
protos_commit(struct config *c)
{
struct proto_config *x;
struct protocol *p;
struct proto *q;
debug("Protocol commit:");
WALK_LIST(x, c->protos)
{
debug(" %s", x->name);
p = x->proto;
q = p->init(x);
add_tail(&inactive_proto_list, &q->n);
}
debug("\n");
}
static void
proto_start(struct proto *p)
{
rem_node(&p->n);
if (p->disabled)
return;
p->proto_state = PS_DOWN;
p->core_state = FS_HUNGRY;
if (p->proto->start && p->proto->start(p) != PS_UP)
bug("Delayed protocol start not supported yet");
p->proto_state = PS_UP;
p->core_state = FS_FEEDING;
if_feed_baby(p);
rt_feed_baby(p);
p->core_state = FS_HAPPY;
add_tail(&proto_list, &p->n);
}
void
protos_start(void)
{
struct proto *p, *n;
debug("Protocol start\n");
WALK_LIST_DELSAFE(p, n, inactive_proto_list)
{
debug("Starting %s\n", p->cf->name);
proto_start(p);
}
}
void
protos_dump_all(void)
{
struct proto *p;
static char *p_states[] = { "DOWN", "START", "UP", "STOP" };
static char *c_states[] = { "HUNGRY", "FEEDING", "HAPPY", "FLUSHING" };
debug("Protocols:\n");
WALK_LIST(p, proto_list)
{
debug(" protocol %s: state %s/%s\n", p->cf->name, p_states[p->proto_state], c_states[p->core_state]);
if (p->disabled)
debug("\tDISABLED\n");
else if (p->proto->dump)
p->proto->dump(p);
}
WALK_LIST(p, inactive_proto_list)
debug(" inactive %s\n", p->cf->name);
}
void
protos_build(void)
{
init_list(&protocol_list);
add_tail(&protocol_list, &proto_device.n);
#ifdef CONFIG_RIP
add_tail(&protocol_list, &proto_rip.n);
#endif
#ifdef CONFIG_STATIC
add_tail(&protocol_list, &proto_static.n);
#endif
}
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