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MPLS: Putting internal objects aside

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This commit is contained in:
Maria Matejka 2023-11-23 11:41:49 +01:00
parent f0da632b3c
commit 9815353c5e
3 changed files with 62 additions and 38 deletions
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60
nest/mpls-internal.h Normal file
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@ -0,0 +1,60 @@
/*
* BIRD Internet Routing Daemon -- MPLS Structures
*
* (c) 2022 Ondrej Zajicek <santiago@crfreenet.org>
* (c) 2022 CZ.NIC z.s.p.o.
*
* Can be freely distributed and used under the terms of the GNU GPL.
*/
#ifndef _BIRD_MPLS_INTERNAL_H_
#define _BIRD_MPLS_INTERNAL_H_
#include "nest/bird.h"
#include "lib/bitmap.h"
#include "lib/hash.h"
#include "nest/route.h"
#include "nest/protocol.h"
#include "nest/mpls.h"
struct mpls_domain {
node n; /* Node in global list of MPLS domains (mpls_domains) */
struct mpls_domain_config *cf; /* Our config */
const char *name;
pool *pool; /* Pool for the domain and associated objects */
struct lmap labels; /* Bitmap of allocated labels */
uint label_count; /* Number of allocated labels */
uint use_count; /* Reference counter */
struct config *removed; /* Deconfigured, waiting for zero use_count,
while keeping config obstacle */
list ranges; /* List of label ranges (struct mpls_range) */
list handles; /* List of label handles (struct mpls_handle) */
};
struct mpls_range {
node n; /* Node in mpls_domain.ranges */
struct mpls_range_config *cf; /* Our config */
const char *name;
uint lo, hi; /* Label range interval */
uint label_count; /* Number of allocated labels */
uint use_count; /* Reference counter */
u8 removed; /* Deconfigured, waiting for zero use_count */
};
struct mpls_handle {
node n; /* Node in mpls_domain.handles */
struct mpls_range *range; /* Associated range, keeping reference */
uint label_count; /* Number of allocated labels */
};
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);
void mpls_move_label(struct mpls_domain *m, struct mpls_handle *fh, struct mpls_handle *th, uint n);
#endif

2
nest/mpls.c
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@ -83,7 +83,7 @@
#include "nest/bird.h"
#include "nest/route.h"
#include "nest/mpls.h"
#include "nest/mpls-internal.h"
#include "nest/cli.h"
static struct mpls_range *mpls_new_range(struct mpls_domain *m, struct mpls_range_config *cf);

38
nest/mpls.h
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@ -38,23 +38,6 @@ struct mpls_domain_config {
struct mpls_range_config *dynamic_range; /* Default dynamic label range */
};
struct mpls_domain {
node n; /* Node in global list of MPLS domains (mpls_domains) */
struct mpls_domain_config *cf; /* Our config */
const char *name;
pool *pool; /* Pool for the domain and associated objects */
struct lmap labels; /* Bitmap of allocated labels */
uint label_count; /* Number of allocated labels */
uint use_count; /* Reference counter */
struct config *removed; /* Deconfigured, waiting for zero use_count,
while keeping config obstacle */
list ranges; /* List of label ranges (struct mpls_range) */
list handles; /* List of label handles (struct mpls_handle) */
};
struct mpls_range_config {
node n; /* Node in mpls_domain_config.ranges */
struct mpls_range *range; /* Our instance */
@ -66,23 +49,7 @@ struct mpls_range_config {
u8 implicit; /* Implicitly defined range */
};
struct mpls_range {
node n; /* Node in mpls_domain.ranges */
struct mpls_range_config *cf; /* Our config */
const char *name;
uint lo, hi; /* Label range interval */
uint label_count; /* Number of allocated labels */
uint use_count; /* Reference counter */
u8 removed; /* Deconfigured, waiting for zero use_count */
};
struct mpls_handle {
node n; /* Node in mpls_domain.handles */
struct mpls_range *range; /* Associated range, keeping reference */
uint label_count; /* Number of allocated labels */
};
struct mpls_handle;
void mpls_init(void);
@ -91,9 +58,6 @@ 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 n);
void mpls_free_label(struct mpls_domain *m, struct mpls_handle *h, uint n);
void mpls_move_label(struct mpls_domain *m, struct mpls_handle *fh, struct mpls_handle *th, uint n);
static inline struct mpls_domain_config *cf_default_mpls_domain(struct config *cfg)
{ return EMPTY_LIST(cfg->mpls_domains) ? NULL : HEAD(cfg->mpls_domains); }