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Code Releases Activity

Fixed channel stopping when reload is active

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This commit is contained in:
Maria Matejka 2023-03-07 23:22:03 +01:00
parent 7d6fe6dfb1
commit aa5fc3b99d
1 changed files with 47 additions and 30 deletions
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69
nest/proto.c
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@ -52,6 +52,7 @@ static void channel_init_limit(struct channel *c, struct limit *l, int dir, stru
static void channel_update_limit(struct channel *c, struct limit *l, int dir, struct channel_limit *cf);
static void channel_reset_limit(struct channel *c, struct limit *l, int dir);
static void channel_feed_end(struct channel *c);
static void channel_stop_export(struct channel *c);
static void channel_export_stopped(struct rt_export_request *req);
static void channel_check_stopped(struct channel *c);
@ -302,14 +303,9 @@ channel_roa_in_changed(struct settle *se)
{
struct roa_subscription *s = SKIP_BACK(struct roa_subscription, settle, se);
struct channel *c = s->c;
int active = !!c->reload_req.hook;
CD(c, "Reload triggered by RPKI change%s", active ? " - already active" : "");
if (!active)
CD(c, "Reload triggered by RPKI change");
channel_request_reload(c);
else
c->reload_pending = 1;
}
static void
@ -321,9 +317,7 @@ channel_roa_out_changed(struct settle *se)
CD(c, "Feeding triggered by RPKI change");
c->refeed_pending = 1;
if (c->out_req.hook)
rt_stop_export(&c->out_req, channel_export_stopped);
channel_stop_export(c);
}
static void
@ -408,6 +402,7 @@ static void
channel_roa_unsubscribe(struct roa_subscription *s)
{
rt_stop_export(&s->req, channel_roa_unsubscribed);
settle_cancel(&s->settle);
}
static void
@ -551,7 +546,7 @@ channel_check_stopped(struct channel *c)
switch (c->channel_state)
{
case CS_STOP:
if (!EMPTY_LIST(c->roa_subscriptions) || c->out_req.hook || c->in_req.hook)
if (!EMPTY_LIST(c->roa_subscriptions) || c->out_req.hook || c->in_req.hook || c->reload_req.hook)
return;
channel_set_state(c, CS_DOWN);
@ -559,13 +554,11 @@ channel_check_stopped(struct channel *c)
break;
case CS_PAUSE:
if (!EMPTY_LIST(c->roa_subscriptions) || c->out_req.hook)
if (!EMPTY_LIST(c->roa_subscriptions) || c->out_req.hook || c->reload_req.hook)
return;
channel_set_state(c, CS_START);
break;
default:
bug("Stopped channel in a bad state: %d", c->channel_state);
}
DBG("%s.%s: Channel requests/hooks stopped (in state %s)\n", c->proto->name, c->name, c_states[c->channel_state]);
@ -616,8 +609,6 @@ channel_export_stopped(struct rt_export_request *req)
static void
channel_feed_end(struct channel *c)
{
struct rt_export_request *req = &c->out_req;
/* Reset export limit if the feed ended with acceptable number of exported routes */
struct limit *l = &c->out_limit;
if (c->refeeding &&
@ -629,7 +620,7 @@ channel_feed_end(struct channel *c)
channel_reset_limit(c, &c->out_limit, PLD_OUT);
c->refeed_pending = 1;
rt_stop_export(req, channel_export_stopped);
channel_stop_export(c);
return;
}
@ -637,7 +628,7 @@ channel_feed_end(struct channel *c)
c->proto->feed_end(c);
if (c->refeed_pending)
rt_stop_export(req, channel_export_stopped);
channel_stop_export(c);
else
c->refeeding = 0;
}
@ -648,6 +639,13 @@ channel_schedule_reload(struct channel *c)
{
ASSERT(c->in_req.hook);
if (c->reload_req.hook)
{
CD(c, "Reload triggered before the previous one has finished");
c->reload_pending = 1;
return;
}
rt_refresh_begin(&c->in_req);
rt_request_export(c->table, &c->reload_req);
}
@ -660,6 +658,9 @@ channel_reload_stopped(struct rt_export_request *req)
/* Restart reload */
if (c->reload_pending)
channel_request_reload(c);
if (c->channel_state != CS_UP)
channel_check_stopped(c);
}
static void
@ -669,7 +670,9 @@ channel_reload_log_state_change(struct rt_export_request *req, u8 state)
if (state == TES_READY)
{
if (c->channel_state == CS_UP)
rt_refresh_end(&c->in_req);
rt_stop_export(req, channel_reload_stopped);
}
}
@ -724,20 +727,18 @@ channel_do_up(struct channel *c)
static void
channel_do_pause(struct channel *c)
{
/* Drop ROA subscriptions */
channel_roa_unsubscribe_all(c);
/* Need to abort feeding */
if (c->reload_req.hook)
{
c->reload_pending = 0;
if (c->reload_req.hook && c->reload_req.hook->export_state != TES_STOP)
rt_stop_export(&c->reload_req, channel_reload_stopped);
}
/* Stop export */
if (c->refeed_pending)
c->refeed_pending = 0;
else if (c->out_req.hook)
rt_stop_export(&c->out_req, channel_export_stopped);
channel_roa_unsubscribe_all(c);
channel_stop_export(c);
}
static void
@ -858,6 +859,15 @@ channel_request_feeding(struct channel *c)
return;
c->refeed_pending = 1;
channel_stop_export(c);
}
static void
channel_stop_export(struct channel *c)
{
if (!c->out_req.hook || (c->out_req.hook->export_state == TES_STOP))
return;
rt_stop_export(&c->out_req, channel_export_stopped);
}
@ -1437,6 +1447,8 @@ protos_commit(struct config *new, struct config *old, int force_reconfig, int ty
p = oc->proto;
sym = cf_find_symbol(new, oc->name);
struct birdloop *proto_loop = PROTO_ENTER_FROM_MAIN(p);
/* Handle dynamic protocols */
if (!sym && oc->parent && !new->shutdown)
{
@ -1462,8 +1474,11 @@ protos_commit(struct config *new, struct config *old, int force_reconfig, int ty
nc->proto = p;
/* We will try to reconfigure protocol p */
if (! force_reconfig && proto_reconfigure(p, oc, nc, type))
if (!force_reconfig && proto_reconfigure(p, oc, nc, type))
{
PROTO_LEAVE_FROM_MAIN(proto_loop);
continue;
}
if (nc->parent)
{
@ -1501,6 +1516,8 @@ protos_commit(struct config *new, struct config *old, int force_reconfig, int ty
}
p->reconfiguring = 1;
PROTO_LEAVE_FROM_MAIN(proto_loop);
config_add_obstacle(old);
proto_rethink_goal(p);
}