Commit 839380d7 authored by Martin Mareš's avatar Martin Mareš

Added debugging of protocol state transitions.

parent f30b86f9
Core
~~~~
- debug: interfaces
- debug: route updates
- debug: static
- debug: pipe
- debug: krt
- static: check validity of route destination?
- static: allow specifying a per-route filter program for setting route attributes?
......@@ -12,6 +18,7 @@ Core
Commands
~~~~~~~~
- show status
- showing of routing table as seen by given protocol
- printing of dynamic attributes
......
......@@ -33,6 +33,8 @@ static list proto_list;
struct proto *p = SKIP_BACK(struct proto, glob_node, nn);
#define WALK_PROTO_LIST_END } } while(0)
#define PD(pr, msg, args...) do { if (pr->debug & D_STATES) { log(L_TRACE "%s: " msg, pr->name , ## args); } } while(0)
list active_proto_list;
static list inactive_proto_list;
static list initial_proto_list;
......@@ -45,6 +47,7 @@ static char *c_states[] = { "HUNGRY", "FEEDING", "HAPPY", "FLUSHING" };
static int proto_flush_all(void *);
static void proto_rethink_goal(struct proto *p);
static char *proto_state_name(struct proto *p);
static void
proto_enqueue(list *l, struct proto *p)
......@@ -58,6 +61,7 @@ proto_relink(struct proto *p)
{
list *l;
PD(p, "State changed to %s", proto_state_name(p));
rem_node(&p->n);
switch (p->core_state)
{
......@@ -112,6 +116,7 @@ proto_add_announce_hook(struct proto *p, struct rtable *t)
if (!p->rt_notify)
return NULL;
DBG("Connecting protocol %s to table %s\n", p->name, t->name);
PD(p, "Connected to table %s", t->name);
h = mb_alloc(p->pool, sizeof(struct announce_hook));
h->table = t;
h->proto = p;
......@@ -142,6 +147,7 @@ proto_config_new(struct protocol *pr, unsigned size)
c->name = pr->name;
c->out_filter = FILTER_REJECT;
c->table = c->global->master_rtc;
c->debug = new_config->proto_default_debug;
return c;
}
......@@ -189,6 +195,7 @@ proto_init(struct proto_config *c)
q->core_state = FS_HUNGRY;
proto_enqueue(&initial_proto_list, q);
add_tail(&proto_list, &q->glob_node);
PD(q, "Initializing");
return q;
}
......@@ -223,6 +230,7 @@ protos_commit(struct config *new, struct config *old, int force_reconfig)
if (p->proto->reconfigure && p->proto->reconfigure(p, nc))
{
DBG("\t%s: same\n", oc->name);
PD(p, "Reconfigured");
p->cf = nc;
p->name = nc->name;
nc->proto = p;
......@@ -231,12 +239,14 @@ protos_commit(struct config *new, struct config *old, int force_reconfig)
}
/* Unsuccessful, force reconfig */
DBG("\t%s: power cycling\n", oc->name);
PD(p, "Reconfiguration failed, restarting");
p->cf_new = nc;
nc->proto = p;
}
else
{
DBG("\t%s: deleting\n", oc->name);
PD(p, "Unconfigured");
p->cf_new = NULL;
}
p->reconfiguring = 1;
......@@ -291,6 +301,7 @@ proto_rethink_goal(struct proto *p)
if (p->core_state == FS_HUNGRY && p->proto_state == PS_DOWN)
{
DBG("Kicking %s up\n", p->name);
PD(p, "Starting");
proto_init_instance(p);
proto_notify_state(p, (q->start ? q->start(p) : PS_UP));
}
......@@ -300,6 +311,7 @@ proto_rethink_goal(struct proto *p)
if (p->proto_state == PS_START || p->proto_state == PS_UP)
{
DBG("Kicking %s down\n", p->name);
PD(p, "Shutting down");
proto_notify_state(p, (q->shutdown ? q->shutdown(p) : PS_DOWN));
}
}
......
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