mirror of
https://gitlab.nic.cz/labs/bird.git
synced 2024-12-31 06:01:52 +00:00
Resource pools are now bound with domains.
Memory allocation is a fragile part of BIRD and we need checking that everybody is using the resource pools in an appropriate way. To assure this, all the resource pools are associated with locking domains and every resource manipulation is thoroughly checked whether the appropriate locking domain is locked. With transitive resource manipulation like resource dumping or mass free operations, domains are locked and unlocked on the go, thus we require pool domains to have higher order than their parent to allow for this transitive operations. Adding pool locking revealed some cases of insecure memory manipulation and this commit fixes that as well.
This commit is contained in:
Maria Matejka
parent
6230d87c74
commit
22f54eaee6
@ -90,7 +90,7 @@ int undo_available; /* Undo was not requested from last reconfiguration */
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struct config *
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config_alloc(const char *name)
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{
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pool *p = rp_new(config_pool, "Config");
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pool *p = rp_new(config_pool, the_bird_domain.the_bird, "Config");
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linpool *l = lp_new_default(p);
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struct config *c = lp_allocz(l, sizeof(struct config));
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@ -515,7 +515,7 @@ config_timeout(timer *t UNUSED)
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void
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config_init(void)
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{
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config_pool = rp_new(&root_pool, "Configurations");
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config_pool = rp_new(&root_pool, the_bird_domain.the_bird, "Configurations");
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config_event = ev_new(config_pool);
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config_event->hook = config_done;
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@ -61,7 +61,7 @@ dump_nodes(void)
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static void
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init_hash_(uint order)
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{
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my_pool = rp_new(&root_pool, "Test pool");
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my_pool = rp_new(&root_pool, the_bird_domain.the_bird, "Test pool");
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HASH_INIT(hash, my_pool, order);
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@ -31,6 +31,7 @@ event_list *birdloop_event_list(struct birdloop *loop);
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/* Get birdloop's time heap */
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struct timeloop *birdloop_time_loop(struct birdloop *loop);
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#define birdloop_domain(l) (birdloop_time_loop((l))->domain)
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/* Get birdloop's pool */
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pool *birdloop_pool(struct birdloop *loop);
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@ -13,8 +13,8 @@ struct domain_generic;
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/* Here define the global lock order; first to last. */
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struct lock_order {
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struct domain_generic *meta;
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struct domain_generic *the_bird;
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struct domain_generic *meta;
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struct domain_generic *control;
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struct domain_generic *proto;
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struct domain_generic *service;
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137
lib/resource.c
137
lib/resource.c
@ -46,6 +46,16 @@ static struct resclass pool_class = {
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pool root_pool;
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static void
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rp_init(pool *z, struct domain_generic *dom, const char *name)
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{
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ASSERT_DIE(DG_IS_LOCKED(dom));
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z->name = name;
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z->domain = dom;
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z->inside = (TLIST_LIST(resource)) {};
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}
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/**
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* rp_new - create a resource pool
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* @p: parent pool
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@ -55,77 +65,106 @@ pool root_pool;
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* parent pool.
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*/
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pool *
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rp_new(pool *p, const char *name)
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rp_new(pool *p, struct domain_generic *dom, const char *name)
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{
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pool *z = ralloc(p, &pool_class);
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z->name = name;
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init_list(&z->inside);
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if (dg_order(p->domain) > dg_order(dom))
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bug("Requested reverse order pool creation: %s (%d) can't be a parent of %s (%d)",
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domain_name(p->domain), dg_order(p->domain),
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domain_name(dom), dg_order(dom));
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if ((dg_order(p->domain) == dg_order(dom)) && (p->domain != dom))
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bug("Requested incomparable order pool creation: %s (%d) can't be a parent of %s (%d)",
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domain_name(p->domain), dg_order(p->domain),
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domain_name(dom), dg_order(dom));
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rp_init(z, dom, name);
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return z;
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}
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pool *
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rp_vnewf(pool *p, const char *fmt, va_list args)
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rp_vnewf(pool *p, struct domain_generic *dom, const char *fmt, va_list args)
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{
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pool *z = rp_new(p, NULL);
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pool *z = rp_new(p, dom, NULL);
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z->name = mb_vsprintf(p, fmt, args);
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return z;
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}
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pool *
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rp_newf(pool *p, const char *fmt, ...)
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rp_newf(pool *p, struct domain_generic *dom, const char *fmt, ...)
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{
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va_list args;
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va_start(args, fmt);
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pool *z = rp_vnewf(p, fmt, args);
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pool *z = rp_vnewf(p, dom, fmt, args);
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va_end(args);
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return z;
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}
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#define POOL_LOCK \
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struct domain_generic *dom = p->domain; \
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int locking = !DG_IS_LOCKED(dom); \
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if (locking) \
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DG_LOCK(dom); \
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#define POOL_UNLOCK if (locking) DG_UNLOCK(dom);\
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void rp_free(pool *p)
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{
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ASSERT_DIE(DG_IS_LOCKED(p->domain));
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rfree(p);
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}
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static void
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pool_free(resource *P)
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{
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pool *p = (pool *) P;
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resource *r, *rr;
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r = HEAD(p->inside);
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while (rr = (resource *) r->n.next)
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POOL_LOCK;
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WALK_TLIST_DELSAFE(resource, r, &p->inside)
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{
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r->class->free(r);
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xfree(r);
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r = rr;
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}
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POOL_UNLOCK;
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}
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static void
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pool_dump(resource *P, unsigned indent)
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{
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pool *p = (pool *) P;
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resource *r;
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POOL_LOCK;
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debug("%s\n", p->name);
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WALK_LIST(r, p->inside)
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WALK_TLIST_DELSAFE(resource, r, &p->inside)
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rdump(r, indent + 3);
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POOL_UNLOCK;
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}
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static struct resmem
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pool_memsize(resource *P)
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{
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pool *p = (pool *) P;
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resource *r;
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struct resmem sum = {
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.effective = 0,
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.overhead = sizeof(pool) + ALLOC_OVERHEAD,
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};
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WALK_LIST(r, p->inside)
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POOL_LOCK;
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WALK_TLIST(resource, r, &p->inside)
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{
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struct resmem add = rmemsize(r);
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sum.effective += add.effective;
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sum.overhead += add.overhead;
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}
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POOL_UNLOCK;
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return sum;
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}
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@ -133,14 +172,25 @@ static resource *
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pool_lookup(resource *P, unsigned long a)
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{
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pool *p = (pool *) P;
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resource *r, *q;
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resource *q = NULL;
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WALK_LIST(r, p->inside)
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POOL_LOCK;
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WALK_TLIST(resource, r, &p->inside)
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if (r->class->lookup && (q = r->class->lookup(r, a)))
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break;
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POOL_UNLOCK;
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return q;
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return NULL;
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}
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static pool *
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resource_parent(resource *r)
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{
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return SKIP_BACK(pool, inside, resource_enlisted(r));
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}
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/**
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* rmove - move a resource
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* @res: resource
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@ -152,13 +202,13 @@ pool_lookup(resource *P, unsigned long a)
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void rmove(void *res, pool *p)
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{
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resource *r = res;
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pool *orig = resource_parent(r);
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if (r)
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{
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if (r->n.next)
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rem_node(&r->n);
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add_tail(&p->inside, &r->n);
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}
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ASSERT_DIE(DG_IS_LOCKED(orig->domain));
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ASSERT_DIE(DG_IS_LOCKED(p->domain));
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resource_rem_node(&orig->inside, r);
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resource_add_tail(&p->inside, r);
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}
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/**
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@ -179,8 +229,10 @@ rfree(void *res)
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if (!r)
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return;
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if (r->n.next)
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rem_node(&r->n);
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pool *orig = resource_parent(r);
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ASSERT_DIE(DG_IS_LOCKED(orig->domain));
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resource_rem_node(&orig->inside, r);
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r->class->free(r);
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r->class = NULL;
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xfree(r);
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@ -239,12 +291,14 @@ rmemsize(void *res)
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void *
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ralloc(pool *p, struct resclass *c)
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{
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ASSERT_DIE(DG_IS_LOCKED(p->domain));
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resource *r = xmalloc(c->size);
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bzero(r, c->size);
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r->class = c;
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if (p)
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add_tail(&p->inside, &r->n);
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resource_add_tail(&p->inside, r);
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return r;
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}
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@ -284,28 +338,29 @@ resource_init(void)
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rcu_init();
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resource_sys_init();
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root_pool.r.class = &pool_class;
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root_pool.name = "Root";
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init_list(&root_pool.inside);
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tmp_init(&root_pool);
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rp_init(&root_pool, the_bird_domain.the_bird, "Root");
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tmp_init(&root_pool, the_bird_domain.the_bird);
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}
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_Thread_local struct tmp_resources tmp_res;
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void
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tmp_init(pool *p)
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tmp_init(pool *p, struct domain_generic *dom)
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{
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tmp_res.lp = lp_new_default(p);
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tmp_res.parent = p;
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tmp_res.pool = rp_new(p, "TMP");
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tmp_res.pool = rp_new(p, dom, "TMP");
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tmp_res.domain = dom;
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}
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void
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tmp_flush(void)
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{
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ASSERT_DIE(DG_IS_LOCKED(tmp_res.domain));
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lp_flush(tmp_linpool);
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rp_free(tmp_res.pool);
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tmp_res.pool = rp_new(tmp_res.parent, "TMP");
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tmp_res.pool = rp_new(tmp_res.parent, tmp_res.domain, "TMP");
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}
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@ -385,11 +440,13 @@ static struct resclass mb_class = {
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void *
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mb_alloc(pool *p, unsigned size)
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{
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ASSERT_DIE(DG_IS_LOCKED(p->domain));
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struct mblock *b = xmalloc(sizeof(struct mblock) + size);
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b->r.class = &mb_class;
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b->r.n = (node) {};
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add_tail(&p->inside, &b->r.n);
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b->r.n = (struct resource_node) {};
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resource_add_tail(&p->inside, &b->r);
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b->size = size;
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return b->data;
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}
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@ -434,10 +491,14 @@ void *
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mb_realloc(void *m, unsigned size)
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{
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struct mblock *b = SKIP_BACK(struct mblock, data, m);
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struct pool *p = resource_parent(&b->r);
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ASSERT_DIE(DG_IS_LOCKED(p->domain));
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b = xrealloc(b, sizeof(struct mblock) + size);
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update_node(&b->r.n);
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b->size = size;
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resource_update_node(&p->inside, &b->r);
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return b->data;
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}
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@ -10,7 +10,8 @@
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#ifndef _BIRD_RESOURCE_H_
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#define _BIRD_RESOURCE_H_
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#include "lib/lists.h"
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#include "lib/locking.h"
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#include "lib/tlists.h"
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#include <stdarg.h>
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@ -21,11 +22,20 @@ struct resmem {
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/* Resource */
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#define TLIST_PREFIX resource
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#define TLIST_TYPE struct resource
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#define TLIST_ITEM n
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#define TLIST_WANT_WALK
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#define TLIST_WANT_ADD_TAIL
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#define TLIST_WANT_UPDATE_NODE
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typedef struct resource {
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node n; /* Inside resource pool */
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struct resclass *class; /* Resource class */
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TLIST_DEFAULT_NODE; /* Inside resource pool */
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const struct resclass *class; /* Resource class */
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} resource;
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#include "lib/tlists.h"
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/* Resource class */
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struct resclass {
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@ -44,14 +54,13 @@ struct resclass {
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typedef struct pool {
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resource r;
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list inside;
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TLIST_LIST(resource) inside;
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struct domain_generic *domain;
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const char *name;
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} pool;
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void resource_init(void);
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pool *rp_new(pool *, const char *); /* Create new pool */
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pool *rp_newf(pool *, const char *, ...); /* Create a new pool with a formatted string as its name */
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void rfree(void *); /* Free single resource */
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void rdump(void *, unsigned indent); /* Dump to debug output */
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struct resmem rmemsize(void *res); /* Return size of memory used by the resource */
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@ -60,12 +69,10 @@ void rmove(void *, pool *); /* Move to a different pool */
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void *ralloc(pool *, struct resclass *);
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pool *rp_new(pool *, const char *); /* Create a new pool */
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pool *rp_newf(pool *, const char *, ...); /* Create a new pool with a formatted string as its name */
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pool *rp_vnewf(pool *, const char *, va_list); /* Create a new pool with a formatted string as its name */
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void rp_init(pool *, const char *); /* Init a new pool */
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void rp_initf(pool *, const char *, ...); /* Init a new pool with a formatted string as its name */
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static inline void rp_free(pool *p) { rfree(&p->r); } /* Free the whole pool */
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pool *rp_new(pool *, struct domain_generic *, const char *); /* Create a new pool */
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pool *rp_newf(pool *, struct domain_generic *, const char *, ...); /* Create a new pool with a formatted string as its name */
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pool *rp_vnewf(pool *, struct domain_generic *, const char *, va_list); /* Create a new pool with a formatted string as its name */
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void rp_free(pool *p); /* Free the whole pool */
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extern pool root_pool;
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@ -97,6 +104,7 @@ void lp_restore(linpool *m, lp_state *p); /* Restore state */
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struct tmp_resources {
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pool *pool, *parent;
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linpool *lp;
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struct domain_generic *domain;
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};
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extern _Thread_local struct tmp_resources tmp_res;
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@ -106,7 +114,7 @@ extern _Thread_local struct tmp_resources tmp_res;
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#define tmp_allocu(sz) lp_allocu(tmp_linpool, sz)
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#define tmp_allocz(sz) lp_allocz(tmp_linpool, sz)
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void tmp_init(pool *p);
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void tmp_init(pool *p, struct domain_generic *dg);
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void tmp_flush(void);
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@ -262,7 +262,7 @@ cli_command(struct cli *c)
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log(L_TRACE "CLI: %s", c->rx_buf);
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bzero(&f, sizeof(f));
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f.mem = c->parser_pool;
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f.pool = rp_new(c->pool, "Config");
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f.pool = rp_new(c->pool, the_bird_domain.the_bird, "Config");
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init_list(&f.symbols);
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cf_read_hook = cli_cmd_read_hook;
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cli_rh_pos = c->rx_buf;
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@ -309,7 +309,7 @@ cli_event(void *data)
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cli *
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cli_new(struct birdsock *sock)
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{
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pool *p = rp_new(cli_pool, "CLI");
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pool *p = rp_new(cli_pool, the_bird_domain.the_bird, "CLI");
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cli *c = mb_alloc(p, sizeof(cli));
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bzero(c, sizeof(cli));
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@ -433,7 +433,7 @@ cli_free(cli *c)
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void
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cli_init(void)
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{
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cli_pool = rp_new(&root_pool, "CLI");
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cli_pool = rp_new(&root_pool, the_bird_domain.the_bird, "CLI");
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init_list(&cli_log_hooks);
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cli_log_inited = 1;
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}
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@ -10,6 +10,7 @@
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#define _BIRD_CLI_H_
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#include "lib/resource.h"
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#include "lib/lists.h"
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#include "lib/event.h"
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#define CLI_RX_BUF_SIZE 4096
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@ -1018,12 +1018,15 @@ if_choose_router_id(struct iface_patt *mask, u32 old_id)
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void
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if_init(void)
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{
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if_pool = rp_new(&root_pool, "Interfaces");
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iface_domain = DOMAIN_NEW(attrs, "Interfaces");
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IFACE_LOCK;
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if_pool = rp_new(&root_pool, iface_domain.attrs, "Interfaces");
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init_list(&global_iface_list);
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iface_sub_slab = sl_new(if_pool, sizeof(struct iface_notification));
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strcpy(default_vrf.name, "default");
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neigh_init(if_pool);
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iface_domain = DOMAIN_NEW(attrs, "Interfaces");
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IFACE_UNLOCK;
|
||||
}
|
||||
|
||||
/*
|
||||
|
||||
@ -10,6 +10,7 @@
|
||||
#define _BIRD_LOCKS_H_
|
||||
|
||||
#include "lib/resource.h"
|
||||
#include "lib/lists.h"
|
||||
#include "lib/event.h"
|
||||
|
||||
/*
|
||||
|
||||
@ -10,6 +10,8 @@
|
||||
#ifndef PASSWORD_H
|
||||
#define PASSWORD_H
|
||||
|
||||
#include "lib/lists.h"
|
||||
|
||||
struct password_item {
|
||||
node n;
|
||||
const char *password; /* Key data, null terminated */
|
||||
|
||||
12
nest/proto.c
12
nest/proto.c
@ -367,6 +367,7 @@ channel_roa_subscribe(struct channel *c, rtable *tab, int dir)
|
||||
.name = mb_sprintf(c->proto->pool, "%s.%s.roa-%s.%s",
|
||||
c->proto->name, c->name, dir ? "in" : "out", tab->name),
|
||||
.list = proto_work_list(c->proto),
|
||||
.pool = c->proto->pool,
|
||||
.trace_routes = c->debug | c->proto->debug,
|
||||
.dump_req = channel_dump_roa_req,
|
||||
.export_one = channel_export_one_roa,
|
||||
@ -495,6 +496,7 @@ channel_start_export(struct channel *c)
|
||||
c->out_req = (struct rt_export_request) {
|
||||
.name = mb_sprintf(c->proto->pool, "%s.%s", c->proto->name, c->name),
|
||||
.list = proto_work_list(c->proto),
|
||||
.pool = c->proto->pool,
|
||||
.addr = c->out_subprefix,
|
||||
.addr_mode = c->out_subprefix ? TE_ADDR_IN : TE_ADDR_NONE,
|
||||
.trace_routes = c->debug | c->proto->debug,
|
||||
@ -685,6 +687,7 @@ channel_setup_in_table(struct channel *c)
|
||||
c->reload_req = (struct rt_export_request) {
|
||||
.name = mb_sprintf(c->proto->pool, "%s.%s.import", c->proto->name, c->name),
|
||||
.list = proto_work_list(c->proto),
|
||||
.pool = c->proto->pool,
|
||||
.trace_routes = c->debug | c->proto->debug,
|
||||
.export_bulk = channel_reload_export_bulk,
|
||||
.dump_req = channel_reload_dump_req,
|
||||
@ -1132,15 +1135,14 @@ proto_loop_stopped(void *ptr)
|
||||
{
|
||||
struct proto *p = ptr;
|
||||
|
||||
birdloop_enter(&main_birdloop);
|
||||
ASSERT_DIE(birdloop_inside(&main_birdloop));
|
||||
ASSERT_DIE(p->loop != &main_birdloop);
|
||||
|
||||
p->pool = NULL; /* is freed by birdloop_free() */
|
||||
birdloop_free(p->loop);
|
||||
p->loop = &main_birdloop;
|
||||
|
||||
proto_cleanup(p);
|
||||
|
||||
birdloop_leave(&main_birdloop);
|
||||
}
|
||||
|
||||
static void
|
||||
@ -1228,7 +1230,7 @@ proto_start(struct proto *p)
|
||||
p->pool = birdloop_pool(p->loop);
|
||||
}
|
||||
else
|
||||
p->pool = rp_newf(proto_pool, "Protocol %s", p->cf->name);
|
||||
p->pool = rp_newf(proto_pool, the_bird_domain.the_bird, "Protocol %s", p->cf->name);
|
||||
|
||||
p->iface_sub.target = proto_event_list(p);
|
||||
|
||||
@ -1859,7 +1861,7 @@ protos_build(void)
|
||||
{
|
||||
protos_build_gen();
|
||||
|
||||
proto_pool = rp_new(&root_pool, "Protocols");
|
||||
proto_pool = rp_new(&root_pool, the_bird_domain.the_bird, "Protocols");
|
||||
}
|
||||
|
||||
|
||||
|
||||
@ -280,6 +280,8 @@ struct proto *proto_iterate_named(struct symbol *sym, struct protocol *proto, st
|
||||
|
||||
#define PROTO_LOCKED_FROM_MAIN(p) for (struct birdloop *_proto_loop = PROTO_ENTER_FROM_MAIN(p); _proto_loop; PROTO_LEAVE_FROM_MAIN(_proto_loop), (_proto_loop = NULL))
|
||||
|
||||
static inline struct domain_generic *proto_domain(struct proto *p)
|
||||
{ return birdloop_domain(p->loop); }
|
||||
|
||||
#define CMD_RELOAD 0
|
||||
#define CMD_RELOAD_IN 1
|
||||
|
||||
@ -605,9 +605,16 @@ ea_register(pool *p, struct ea_class *def)
|
||||
struct ea_class_ref *
|
||||
ea_register_alloc(pool *p, struct ea_class cl)
|
||||
{
|
||||
struct ea_class_ref *ref;
|
||||
|
||||
RTA_LOCK;
|
||||
struct ea_class *clp = ea_class_find_by_name(cl.name);
|
||||
if (clp && clp->type == cl.type)
|
||||
return ea_ref_class(p, clp);
|
||||
{
|
||||
ref = ea_ref_class(p, clp);
|
||||
RTA_UNLOCK;
|
||||
return ref;
|
||||
}
|
||||
|
||||
uint namelen = strlen(cl.name) + 1;
|
||||
|
||||
@ -619,14 +626,18 @@ ea_register_alloc(pool *p, struct ea_class cl)
|
||||
memcpy(cla->name, cl.name, namelen);
|
||||
cla->cl.name = cla->name;
|
||||
|
||||
return ea_register(p, &cla->cl);
|
||||
ref = ea_register(p, &cla->cl);
|
||||
RTA_UNLOCK;
|
||||
return ref;
|
||||
}
|
||||
|
||||
void
|
||||
ea_register_init(struct ea_class *clp)
|
||||
{
|
||||
RTA_LOCK;
|
||||
ASSERT_DIE(!ea_class_find_by_name(clp->name));
|
||||
ea_register(&root_pool, clp);
|
||||
RTA_UNLOCK;
|
||||
}
|
||||
|
||||
struct ea_class *
|
||||
@ -1598,7 +1609,8 @@ rta_init(void)
|
||||
{
|
||||
attrs_domain = DOMAIN_NEW(attrs, "Attributes");
|
||||
|
||||
rta_pool = rp_new(&root_pool, "Attributes");
|
||||
RTA_LOCK;
|
||||
rta_pool = rp_new(&root_pool, attrs_domain.attrs, "Attributes");
|
||||
|
||||
for (uint i=0; i<ARRAY_SIZE(ea_slab_sizes); i++)
|
||||
ea_slab[i] = sl_new(rta_pool, ea_slab_sizes[i]);
|
||||
@ -1607,6 +1619,8 @@ rta_init(void)
|
||||
rte_src_init();
|
||||
ea_class_init();
|
||||
|
||||
RTA_UNLOCK;
|
||||
|
||||
/* These attributes are required to be first for nice "show route" output */
|
||||
ea_register_init(&ea_gen_nexthop);
|
||||
ea_register_init(&ea_gen_hostentry);
|
||||
|
||||
@ -288,6 +288,7 @@ rt_show_cont(struct rt_show_data *d)
|
||||
.addr = d->addr,
|
||||
.name = "CLI Show Route",
|
||||
.list = &global_work_list,
|
||||
.pool = c->pool,
|
||||
.export_bulk = rt_show_net_export_bulk,
|
||||
.dump_req = rt_show_dump_req,
|
||||
.log_state_change = rt_show_log_state_change,
|
||||
|
||||
@ -2131,7 +2131,7 @@ rt_table_export_start_locked(struct rtable_private *tab, struct rt_export_reques
|
||||
struct rt_exporter *re = &tab->exporter.e;
|
||||
rt_lock_table(tab);
|
||||
|
||||
req->hook = rt_alloc_export(re, sizeof(struct rt_table_export_hook));
|
||||
req->hook = rt_alloc_export(re, req->pool, sizeof(struct rt_table_export_hook));
|
||||
req->hook->req = req;
|
||||
|
||||
struct rt_table_export_hook *hook = SKIP_BACK(struct rt_table_export_hook, h, req->hook);
|
||||
@ -2212,9 +2212,9 @@ rt_request_export_other(struct rt_exporter *re, struct rt_export_request *req)
|
||||
}
|
||||
|
||||
struct rt_export_hook *
|
||||
rt_alloc_export(struct rt_exporter *re, uint size)
|
||||
rt_alloc_export(struct rt_exporter *re, pool *pp, uint size)
|
||||
{
|
||||
pool *p = rp_new(re->rp, "Export hook");
|
||||
pool *p = rp_new(pp, pp->domain, "Export hook");
|
||||
struct rt_export_hook *hook = mb_allocz(p, size);
|
||||
|
||||
hook->pool = p;
|
||||
@ -2709,13 +2709,14 @@ rt_flowspec_link(rtable *src_pub, rtable *dst_pub)
|
||||
|
||||
if (!ln)
|
||||
{
|
||||
pool *p = src->rp;
|
||||
pool *p = birdloop_pool(dst_pub->loop);
|
||||
ln = mb_allocz(p, sizeof(struct rt_flowspec_link));
|
||||
ln->src = src_pub;
|
||||
ln->dst = dst_pub;
|
||||
ln->req = (struct rt_export_request) {
|
||||
.name = mb_sprintf(p, "%s.flowspec.notifier", dst_pub->name),
|
||||
.list = birdloop_event_list(dst_pub->loop),
|
||||
.pool = p,
|
||||
.trace_routes = src->config->debug,
|
||||
.dump_req = rt_flowspec_dump_req,
|
||||
.log_state_change = rt_flowspec_log_state_change,
|
||||
@ -2781,8 +2782,6 @@ rt_free(resource *_r)
|
||||
{
|
||||
struct rtable_private *r = SKIP_BACK(struct rtable_private, r, _r);
|
||||
|
||||
DOMAIN_FREE(rtable, r->lock);
|
||||
|
||||
DBG("Deleting routing table %s\n", r->name);
|
||||
ASSERT_DIE(r->use_count == 0);
|
||||
|
||||
@ -2847,13 +2846,20 @@ rt_setup(pool *pp, struct rtable_config *cf)
|
||||
|
||||
/* Start the service thread */
|
||||
struct birdloop *loop = birdloop_new(pp, DOMAIN_ORDER(service), 0, "Routing table service %s", cf->name);
|
||||
birdloop_enter(loop);
|
||||
pool *sp = birdloop_pool(loop);
|
||||
pool *p = rp_newf(sp, "Routing table data %s", cf->name);
|
||||
|
||||
/* Create the table domain and pool */
|
||||
DOMAIN(rtable) dom = DOMAIN_NEW(rtable, cf->name);
|
||||
LOCK_DOMAIN(rtable, dom);
|
||||
|
||||
pool *p = rp_newf(sp, dom.rtable, "Routing table data %s", cf->name);
|
||||
|
||||
/* Create the actual table */
|
||||
struct rtable_private *t = ralloc(p, &rt_class);
|
||||
t->rp = p;
|
||||
t->loop = loop;
|
||||
t->lock = dom;
|
||||
|
||||
t->rte_slab = sl_new(p, sizeof(struct rte_storage));
|
||||
|
||||
@ -2864,8 +2870,6 @@ rt_setup(pool *pp, struct rtable_config *cf)
|
||||
if (t->id >= rtable_max_id)
|
||||
rtable_max_id = t->id + 1;
|
||||
|
||||
t->lock = DOMAIN_NEW(rtable, t->name);
|
||||
|
||||
fib_init(&t->fib, p, t->addr_type, sizeof(net), OFFSETOF(net, n), 0, NULL);
|
||||
|
||||
if (cf->trie_used)
|
||||
@ -2911,8 +2915,9 @@ rt_setup(pool *pp, struct rtable_config *cf)
|
||||
t->flowspec_trie->ipv4 = (t->addr_type == NET_FLOW4);
|
||||
}
|
||||
|
||||
UNLOCK_DOMAIN(rtable, dom);
|
||||
|
||||
/* Setup the service thread flag handler */
|
||||
birdloop_enter(t->loop);
|
||||
birdloop_flag_set_handler(t->loop, &t->fh);
|
||||
birdloop_leave(t->loop);
|
||||
|
||||
@ -2929,7 +2934,7 @@ void
|
||||
rt_init(void)
|
||||
{
|
||||
rta_init();
|
||||
rt_table_pool = rp_new(&root_pool, "Routing tables");
|
||||
rt_table_pool = rp_new(&root_pool, the_bird_domain.the_bird, "Routing tables");
|
||||
init_list(&routing_tables);
|
||||
init_list(&deleted_routing_tables);
|
||||
ev_init_list(&rt_cork.queue, &main_birdloop, "Route cork release");
|
||||
@ -4067,13 +4072,14 @@ rt_shutdown(void *tab_)
|
||||
static void
|
||||
rt_delete(void *tab_)
|
||||
{
|
||||
birdloop_enter(&main_birdloop);
|
||||
ASSERT_DIE(birdloop_inside(&main_birdloop));
|
||||
|
||||
/* We assume that nobody holds the table reference now as use_count is zero.
|
||||
* Anyway the last holder may still hold the lock. Therefore we lock and
|
||||
* unlock it the last time to be sure that nobody is there. */
|
||||
struct rtable_private *tab = RT_LOCK((rtable *) tab_);
|
||||
struct config *conf = tab->deleted;
|
||||
DOMAIN(rtable) dom = tab->lock;
|
||||
|
||||
RT_UNLOCK(RT_PUB(tab));
|
||||
|
||||
@ -4081,7 +4087,8 @@ rt_delete(void *tab_)
|
||||
birdloop_free(tab->loop);
|
||||
config_del_obstacle(conf);
|
||||
|
||||
birdloop_leave(&main_birdloop);
|
||||
/* Also drop the domain */
|
||||
DOMAIN_FREE(rtable, dom);
|
||||
}
|
||||
|
||||
|
||||
@ -4636,18 +4643,9 @@ rt_init_hostcache(struct rtable_private *tab)
|
||||
.data = tab,
|
||||
};
|
||||
|
||||
hc->req = (struct rt_export_request) {
|
||||
.name = mb_sprintf(tab->rp, "%s.hcu.notifier", tab->name),
|
||||
.list = birdloop_event_list(tab->loop),
|
||||
.trace_routes = tab->config->debug,
|
||||
.dump_req = hc_notify_dump_req,
|
||||
.log_state_change = hc_notify_log_state_change,
|
||||
.export_one = hc_notify_export_one,
|
||||
};
|
||||
|
||||
rt_table_export_start_locked(tab, &hc->req);
|
||||
|
||||
tab->hostcache = hc;
|
||||
|
||||
ev_send_loop(tab->loop, &hc->update);
|
||||
}
|
||||
|
||||
static void
|
||||
@ -4775,9 +4773,24 @@ rt_update_hostcache(void *data)
|
||||
|
||||
RT_LOCKED((rtable *) data, tab)
|
||||
{
|
||||
|
||||
struct hostcache *hc = tab->hostcache;
|
||||
|
||||
/* Finish initialization */
|
||||
if (!hc->req.name)
|
||||
{
|
||||
hc->req = (struct rt_export_request) {
|
||||
.name = mb_sprintf(tab->rp, "%s.hcu.notifier", tab->name),
|
||||
.list = birdloop_event_list(tab->loop),
|
||||
.pool = tab->rp,
|
||||
.trace_routes = tab->config->debug,
|
||||
.dump_req = hc_notify_dump_req,
|
||||
.log_state_change = hc_notify_log_state_change,
|
||||
.export_one = hc_notify_export_one,
|
||||
};
|
||||
|
||||
rt_table_export_start_locked(tab, &hc->req);
|
||||
}
|
||||
|
||||
/* Shutdown shortcut */
|
||||
if (!hc->req.hook)
|
||||
RT_RETURN(tab);
|
||||
|
||||
@ -294,6 +294,7 @@ struct rt_export_request {
|
||||
u8 addr_mode; /* Network prefilter mode (TE_ADDR_*) */
|
||||
|
||||
event_list *list; /* Where to schedule export events */
|
||||
pool *pool; /* Pool to use for allocations */
|
||||
|
||||
/* There are two methods of export. You can either request feeding every single change
|
||||
* or feeding the whole route feed. In case of regular export, &export_one is preferred.
|
||||
@ -438,7 +439,7 @@ int rpe_get_seen(struct rt_export_hook *hook, struct rt_pending_export *rpe);
|
||||
*/
|
||||
|
||||
void rt_init_export(struct rt_exporter *re, struct rt_export_hook *hook);
|
||||
struct rt_export_hook *rt_alloc_export(struct rt_exporter *re, uint size);
|
||||
struct rt_export_hook *rt_alloc_export(struct rt_exporter *re, pool *pool, uint size);
|
||||
void rt_stop_export_common(struct rt_export_hook *hook);
|
||||
void rt_export_stopped(struct rt_export_hook *hook);
|
||||
void rt_exporter_init(struct rt_exporter *re);
|
||||
|
||||
@ -1826,7 +1826,7 @@ babel_add_iface(struct babel_proto *p, struct iface *new, struct babel_iface_con
|
||||
|
||||
TRACE(D_EVENTS, "Adding interface %s", new->name);
|
||||
|
||||
pool *pool = rp_new(p->p.pool, new->name);
|
||||
pool *pool = rp_new(p->p.pool, proto_domain(&p->p), new->name);
|
||||
|
||||
ifa = mb_allocz(pool, sizeof(struct babel_iface));
|
||||
ifa->proto = p;
|
||||
|
||||
@ -1073,7 +1073,7 @@ bfd_start(struct proto *P)
|
||||
|
||||
pthread_spin_init(&p->lock, PTHREAD_PROCESS_PRIVATE);
|
||||
|
||||
p->tpool = rp_new(P->pool, "BFD loop pool");
|
||||
p->tpool = birdloop_pool(P->loop);
|
||||
|
||||
p->session_slab = sl_new(P->pool, sizeof(struct bfd_session));
|
||||
HASH_INIT(p->session_hash_id, P->pool, 8);
|
||||
|
||||
@ -1853,7 +1853,7 @@ bgp_init_pending_tx(struct bgp_channel *c)
|
||||
{
|
||||
ASSERT_DIE(!c->ptx);
|
||||
|
||||
pool *p = rp_new(c->pool, "BGP Pending TX");
|
||||
pool *p = rp_new(c->pool, proto_domain(c->c.proto), "BGP Pending TX");
|
||||
c->ptx = ralloc(p, &bgp_pending_tx_class);
|
||||
c->ptx->pool = p;
|
||||
|
||||
@ -1981,7 +1981,7 @@ bgp_out_table_feed(void *data)
|
||||
static void
|
||||
bgp_out_table_export_start(struct rt_exporter *re, struct rt_export_request *req)
|
||||
{
|
||||
req->hook = rt_alloc_export(re, sizeof(struct bgp_out_export_hook));
|
||||
req->hook = rt_alloc_export(re, req->pool, sizeof(struct bgp_out_export_hook));
|
||||
req->hook->req = req;
|
||||
|
||||
struct bgp_out_export_hook *hook = SKIP_BACK(struct bgp_out_export_hook, h, req->hook);
|
||||
|
||||
@ -922,7 +922,8 @@ bgp_graceful_restart_feed(struct bgp_channel *c)
|
||||
{
|
||||
c->stale_feed = (struct rt_export_request) {
|
||||
.name = "BGP-GR",
|
||||
.list = &global_work_list,
|
||||
.list = proto_event_list(c->c.proto),
|
||||
.pool = c->c.proto->pool,
|
||||
.trace_routes = c->c.debug | c->c.proto->debug,
|
||||
.dump_req = bgp_graceful_restart_feed_dump_req,
|
||||
.log_state_change = bgp_graceful_restart_feed_log_state_change,
|
||||
|
||||
@ -567,7 +567,7 @@ ospf_iface_new(struct ospf_area *oa, struct ifa *addr, struct ospf_iface_patt *i
|
||||
OSPF_TRACE(D_EVENTS, "Adding interface %s (%N) to area %R",
|
||||
iface->name, &addr->prefix, oa->areaid);
|
||||
|
||||
pool = rp_new(p->p.pool, "OSPF Interface");
|
||||
pool = rp_new(p->p.pool, proto_domain(&p->p), "OSPF Interface");
|
||||
ifa = mb_allocz(pool, sizeof(struct ospf_iface));
|
||||
ifa->iface = iface;
|
||||
ifa->addr = addr;
|
||||
@ -690,7 +690,7 @@ ospf_iface_new_vlink(struct ospf_proto *p, struct ospf_iface_patt *ip)
|
||||
|
||||
/* Vlink ifname is stored just after the ospf_iface structure */
|
||||
|
||||
pool = rp_new(p->p.pool, "OSPF Vlink");
|
||||
pool = rp_new(p->p.pool, proto_domain(&p->p), "OSPF Vlink");
|
||||
ifa = mb_allocz(pool, sizeof(struct ospf_iface) + 16);
|
||||
ifa->oa = p->backbone;
|
||||
ifa->cf = ip;
|
||||
|
||||
@ -80,7 +80,7 @@ struct ospf_neighbor *
|
||||
ospf_neighbor_new(struct ospf_iface *ifa)
|
||||
{
|
||||
struct ospf_proto *p = ifa->oa->po;
|
||||
struct pool *pool = rp_new(p->p.pool, "OSPF Neighbor");
|
||||
struct pool *pool = rp_new(p->p.pool, proto_domain(&p->p), "OSPF Neighbor");
|
||||
struct ospf_neighbor *n = mb_allocz(pool, sizeof(struct ospf_neighbor));
|
||||
|
||||
n->pool = pool;
|
||||
|
||||
@ -287,7 +287,7 @@ radv_iface_new(struct radv_proto *p, struct iface *iface, struct radv_iface_conf
|
||||
|
||||
RADV_TRACE(D_EVENTS, "Adding interface %s", iface->name);
|
||||
|
||||
pool *pool = rp_new(p->p.pool, iface->name);
|
||||
pool *pool = rp_new(p->p.pool, proto_domain(&p->p), iface->name);
|
||||
ifa = mb_allocz(pool, sizeof(struct radv_iface));
|
||||
ifa->pool = pool;
|
||||
ifa->ra = p;
|
||||
|
||||
@ -599,7 +599,7 @@ rpki_check_expire_interval(uint seconds)
|
||||
static struct rpki_cache *
|
||||
rpki_init_cache(struct rpki_proto *p, struct rpki_config *cf)
|
||||
{
|
||||
pool *pool = rp_new(p->p.pool, cf->hostname);
|
||||
pool *pool = rp_new(p->p.pool, proto_domain(&p->p), cf->hostname);
|
||||
|
||||
struct rpki_cache *cache = mb_allocz(pool, sizeof(struct rpki_cache));
|
||||
|
||||
|
||||
@ -503,12 +503,14 @@ sockets_fire(struct birdloop *loop)
|
||||
*/
|
||||
|
||||
DEFINE_DOMAIN(resource);
|
||||
static void bird_thread_start_event(void *_data);
|
||||
|
||||
struct birdloop_pickup_group {
|
||||
DOMAIN(resource) domain;
|
||||
list loops;
|
||||
list threads;
|
||||
btime max_latency;
|
||||
event start_threads;
|
||||
} pickup_groups[2] = {
|
||||
{
|
||||
/* all zeroes */
|
||||
@ -516,6 +518,8 @@ struct birdloop_pickup_group {
|
||||
{
|
||||
/* FIXME: make this dynamic, now it copies the loop_max_latency value from proto/bfd/config.Y */
|
||||
.max_latency = 10 MS,
|
||||
.start_threads.hook = bird_thread_start_event,
|
||||
.start_threads.data = &pickup_groups[1],
|
||||
},
|
||||
};
|
||||
|
||||
@ -630,13 +634,11 @@ bird_thread_main(void *arg)
|
||||
rcu_thread_start(&thr->rcu);
|
||||
synchronize_rcu();
|
||||
|
||||
tmp_init(thr->pool);
|
||||
init_list(&thr->loops);
|
||||
|
||||
thr->meta = birdloop_new_no_pickup(thr->pool, DOMAIN_ORDER(meta), "Thread Meta");
|
||||
thr->meta->thread = thr;
|
||||
birdloop_enter(thr->meta);
|
||||
|
||||
tmp_init(thr->pool, birdloop_domain(thr->meta));
|
||||
init_list(&thr->loops);
|
||||
|
||||
thr->sock_changed = 1;
|
||||
|
||||
struct pfd pfd;
|
||||
@ -759,15 +761,20 @@ static struct bird_thread *
|
||||
bird_thread_start(struct birdloop_pickup_group *group)
|
||||
{
|
||||
ASSERT_DIE(birdloop_inside(&main_birdloop));
|
||||
ASSERT_DIE(DOMAIN_IS_LOCKED(resource, group->domain));
|
||||
|
||||
pool *p = rp_new(&root_pool, "Thread");
|
||||
struct birdloop *meta = birdloop_new_no_pickup(&root_pool, DOMAIN_ORDER(meta), "Thread Meta");
|
||||
pool *p = birdloop_pool(meta);
|
||||
|
||||
birdloop_enter(meta);
|
||||
LOCK_DOMAIN(resource, group->domain);
|
||||
|
||||
struct bird_thread *thr = mb_allocz(p, sizeof(*thr));
|
||||
thr->pool = p;
|
||||
thr->cleanup_event = (event) { .hook = bird_thread_cleanup, .data = thr, };
|
||||
thr->group = group;
|
||||
thr->max_latency_ns = (group->max_latency ?: 5 S) TO_NS;
|
||||
thr->meta = meta;
|
||||
thr->meta->thread = thr;
|
||||
|
||||
wakeup_init(thr);
|
||||
ev_init_list(&thr->priority_events, NULL, "Thread direct event list");
|
||||
@ -790,9 +797,18 @@ bird_thread_start(struct birdloop_pickup_group *group)
|
||||
if (e = pthread_create(&thr->thread_id, &thr->thread_attr, bird_thread_main, thr))
|
||||
die("pthread_create() failed: %M", e);
|
||||
|
||||
UNLOCK_DOMAIN(resource, group->domain);
|
||||
birdloop_leave(meta);
|
||||
return thr;
|
||||
}
|
||||
|
||||
static void
|
||||
bird_thread_start_event(void *_data)
|
||||
{
|
||||
struct birdloop_pickup_group *group = _data;
|
||||
bird_thread_start(group);
|
||||
}
|
||||
|
||||
static struct birdloop *thread_dropper;
|
||||
static event *thread_dropper_event;
|
||||
static uint thread_dropper_goal;
|
||||
@ -880,15 +896,14 @@ bird_thread_commit(struct config *new, struct config *old UNUSED)
|
||||
int dif = list_length(&group->threads) - (thread_dropper_goal = new->thread_count);
|
||||
_Bool thread_dropper_running = !!thread_dropper;
|
||||
|
||||
UNLOCK_DOMAIN(resource, group->domain);
|
||||
|
||||
if (dif < 0)
|
||||
{
|
||||
bird_thread_start(group);
|
||||
UNLOCK_DOMAIN(resource, group->domain);
|
||||
continue;
|
||||
}
|
||||
|
||||
UNLOCK_DOMAIN(resource, group->domain);
|
||||
|
||||
if ((dif > 0) && !thread_dropper_running)
|
||||
{
|
||||
struct birdloop *tdl = birdloop_new(&root_pool, DOMAIN_ORDER(control), group->max_latency, "Thread dropper");
|
||||
@ -1006,12 +1021,13 @@ bird_thread_show(void *data)
|
||||
void
|
||||
cmd_show_threads(int show_loops)
|
||||
{
|
||||
pool *p = rp_new(&root_pool, "Show Threads");
|
||||
DOMAIN(control) lock = DOMAIN_NEW(control, "Show Threads");
|
||||
pool *p = rp_new(&root_pool, lock.control, "Show Threads");
|
||||
|
||||
struct bird_thread_show_data *tsd = mb_allocz(p, sizeof(struct bird_thread_show_data));
|
||||
tsd->lock = DOMAIN_NEW(control, "Show Threads");
|
||||
tsd->cli = this_cli;
|
||||
tsd->pool = p;
|
||||
tsd->lock = lock;
|
||||
tsd->show_loops = show_loops;
|
||||
|
||||
this_cli->cont = bird_thread_show_cli_cont;
|
||||
@ -1112,8 +1128,10 @@ birdloop_stop_internal(struct birdloop *loop)
|
||||
/* Request local socket reload */
|
||||
this_thread->sock_changed++;
|
||||
|
||||
/* Tail-call the stopped hook */
|
||||
loop->stopped(loop->stop_data);
|
||||
/* Call the stopped hook from the main loop */
|
||||
loop->event.hook = loop->stopped;
|
||||
loop->event.data = loop->stop_data;
|
||||
ev_send_loop(&main_birdloop, &loop->event);
|
||||
}
|
||||
|
||||
static void
|
||||
@ -1187,8 +1205,9 @@ static struct birdloop *
|
||||
birdloop_vnew_internal(pool *pp, uint order, struct birdloop_pickup_group *group, const char *name, va_list args)
|
||||
{
|
||||
struct domain_generic *dg = domain_new(name, order);
|
||||
DG_LOCK(dg);
|
||||
|
||||
pool *p = rp_vnewf(pp, name, args);
|
||||
pool *p = rp_vnewf(pp, dg, name, args);
|
||||
struct birdloop *loop = mb_allocz(p, sizeof(struct birdloop));
|
||||
loop->pool = p;
|
||||
|
||||
@ -1197,7 +1216,7 @@ birdloop_vnew_internal(pool *pp, uint order, struct birdloop_pickup_group *group
|
||||
|
||||
atomic_store_explicit(&loop->thread_transition, 0, memory_order_relaxed);
|
||||
|
||||
birdloop_enter(loop);
|
||||
birdloop_enter_locked(loop);
|
||||
|
||||
ev_init_list(&loop->event_list, loop, name);
|
||||
timers_init(&loop->time, p);
|
||||
@ -1211,8 +1230,7 @@ birdloop_vnew_internal(pool *pp, uint order, struct birdloop_pickup_group *group
|
||||
LOCK_DOMAIN(resource, group->domain);
|
||||
add_tail(&group->loops, &loop->n);
|
||||
if (EMPTY_LIST(group->threads))
|
||||
bird_thread_start(group);
|
||||
|
||||
ev_send(&global_event_list, &group->start_threads);
|
||||
wakeup_do_kick(SKIP_BACK(struct bird_thread, n, HEAD(group->threads)));
|
||||
UNLOCK_DOMAIN(resource, group->domain);
|
||||
}
|
||||
@ -1277,8 +1295,11 @@ birdloop_free(struct birdloop *loop)
|
||||
{
|
||||
ASSERT_DIE(loop->thread == NULL);
|
||||
|
||||
domain_free(loop->time.domain);
|
||||
struct domain_generic *dg = loop->time.domain;
|
||||
DG_LOCK(dg);
|
||||
rp_free(loop->pool);
|
||||
DG_UNLOCK(dg);
|
||||
domain_free(dg);
|
||||
}
|
||||
|
||||
static void
|
||||
|
||||
@ -74,7 +74,7 @@ static list krt_proto_list;
|
||||
void
|
||||
krt_io_init(void)
|
||||
{
|
||||
krt_pool = rp_new(&root_pool, "Kernel Syncer");
|
||||
krt_pool = rp_new(&root_pool, the_bird_domain.the_bird, "Kernel Syncer");
|
||||
krt_filter_lp = lp_new_default(krt_pool);
|
||||
init_list(&krt_proto_list);
|
||||
krt_sys_io_init();
|
||||
|
||||
Loading…
Reference in New Issue
Block a user