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Merge commit 'b6385dec' into mq-aggregator-for-v3

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This commit is contained in:
Maria Matejka 2023-11-09 15:58:58 +01:00
commit 926c3295d4
2 changed files with 24 additions and 16 deletions
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37
nest/mpls.c
View File

@ -78,8 +78,7 @@
* TODO:
* - protocols should do route refresh instead of restart when reconfiguration
* requires changing labels (e.g. different label range)
* - registering static allocations
* - checking range in static allocations
* - handle label allocation failures
* - special handling of reserved labels
*/
@ -481,12 +480,14 @@ mpls_free_handle(struct mpls_domain *m UNUSED, struct mpls_handle *h)
*/
uint
mpls_new_label(struct mpls_domain *m, struct mpls_handle *h)
mpls_new_label(struct mpls_domain *m, struct mpls_handle *h, uint n)
{
struct mpls_range *r = h->range;
uint n = lmap_first_zero_in_range(&m->labels, r->lo, r->hi);
if (n >= r->hi)
if (!n)
n = lmap_first_zero_in_range(&m->labels, r->lo, r->hi);
if ((n < r->lo) || (n >= r->hi) || lmap_test(&m->labels, n))
return 0;
m->label_count++;
@ -583,8 +584,7 @@ mpls_channel_postconfig(struct channel_config *CC)
cf_error("MPLS domain not specified");
if (!cc->range)
cc->range = (cc->label_policy == MPLS_POLICY_STATIC) ?
cc->domain->static_range : cc->domain->dynamic_range;
cc->range = cc->domain->dynamic_range;
if (cc->range->domain != cc->domain)
cf_error("MPLS label range from different MPLS domain");
@ -684,11 +684,14 @@ mpls_fec_map_free(struct mpls_fec_map *m)
/* Free allocated labels */
HASH_WALK(m->label_hash, next_l, fec)
{
if (fec->policy != MPLS_POLICY_STATIC)
mpls_free_label(m->domain, m->handle, fec->label);
struct mpls_handle *h = (fec->policy != MPLS_POLICY_STATIC) ? m->handle : m->static_handle;
mpls_free_label(m->domain, h, fec->label);
}
HASH_WALK_END;
if (m->static_handle)
mpls_free_handle(m->domain, m->static_handle);
mpls_free_handle(m->domain, m->handle);
mpls_unlock_domain(m->domain);
@ -717,13 +720,17 @@ struct mpls_fec *
mpls_get_fec_by_label(struct mpls_fec_map *m, u32 label)
{
struct mpls_fec *fec = HASH_FIND(m->label_hash, LABEL, label);
/* FIXME: check if (fec->policy == MPLS_POLICY_STATIC) */
if (fec)
return fec;
fec = sl_allocz(mpls_slab(m, 0));
fec->label = label;
if (!m->static_handle)
m->static_handle = mpls_new_handle(m->domain, m->domain->cf->static_range->range);
fec->label = mpls_new_label(m->domain, m->static_handle, label);
fec->policy = MPLS_POLICY_STATIC;
DBG("New FEC lab %u\n", fec->label);
@ -751,7 +758,7 @@ mpls_get_fec_by_net(struct mpls_fec_map *m, const net_addr *net, u32 path_id)
fec->path_id = path_id;
net_copy(fec->net, net);
fec->label = mpls_new_label(m->domain, m->handle);
fec->label = mpls_new_label(m->domain, m->handle, 0);
fec->policy = MPLS_POLICY_PREFIX;
DBG("New FEC net %u\n", fec->label);
@ -784,7 +791,7 @@ mpls_get_fec_by_rta(struct mpls_fec_map *m, const rta *src, u32 class_id)
fec->class_id = class_id;
fec->rta = rta;
fec->label = mpls_new_label(m->domain, m->handle);
fec->label = mpls_new_label(m->domain, m->handle, 0);
fec->policy = MPLS_POLICY_AGGREGATE;
DBG("New FEC rta %u\n", fec->label);
@ -805,7 +812,7 @@ mpls_get_fec_for_vrf(struct mpls_fec_map *m)
fec = sl_allocz(mpls_slab(m, 0));
fec->label = mpls_new_label(m->domain, m->handle);
fec->label = mpls_new_label(m->domain, m->handle, 0);
fec->policy = MPLS_POLICY_VRF;
fec->iface = m->vrf_iface;
@ -825,8 +832,8 @@ mpls_free_fec(struct mpls_fec_map *m, struct mpls_fec *fec)
DBG("Free FEC %u\n", fec->label);
if (fec->policy != MPLS_POLICY_STATIC)
mpls_free_label(m->domain, m->handle, fec->label);
struct mpls_handle *h = (fec->policy != MPLS_POLICY_STATIC) ? m->handle : m->static_handle;
mpls_free_label(m->domain, h, fec->label);
HASH_REMOVE2(m->label_hash, LABEL, m->pool, fec);

3
nest/mpls.h
View File

@ -91,7 +91,7 @@ void mpls_domain_postconfig(struct mpls_domain_config *cf);
struct mpls_range_config * mpls_range_config_new(struct mpls_domain_config *m, struct symbol *s);
void mpls_preconfig(struct config *c);
void mpls_commit(struct config *new, struct config *old);
uint mpls_new_label(struct mpls_domain *m, struct mpls_handle *h);
uint mpls_new_label(struct mpls_domain *m, struct mpls_handle *h, uint n);
void mpls_free_label(struct mpls_domain *m, struct mpls_handle *h, uint n);
static inline struct mpls_domain_config *cf_default_mpls_domain(struct config *cfg)
@ -153,6 +153,7 @@ struct mpls_fec_map {
struct channel *channel; /* MPLS channel for FEC announcement */
struct mpls_domain *domain; /* MPLS domain, keeping reference */
struct mpls_handle *handle; /* Handle for allocation of labels */
struct mpls_handle *static_handle; /* Handle for static label allocations, optional */
struct iface *vrf_iface;
u8 mpls_rts; /* Source value used for MPLS routes (RTS_*) */