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Netlink: MPLS routes in kernel

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Anyway, Bird is now capable to insert both MPLS routes and MPLS encap
routes into kernel.

It was (among others) needed to define platform-specific AF_MPLS to 28
as this constant has been assigned in the linux kernel.

No support for BSD now, it may be added in the future.
This commit is contained in:
Jan Moskyto Matejka
2016-03-04 12:55:50 +01:00
parent f2010f9c65
commit d14f8c3c45
10 changed files with 274 additions and 30 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
nest/route.h
View File

@@ -512,8 +512,7 @@ uint ea_hash(ea_list *e); /* Calculate 16-bit hash value */
ea_list *ea_append(ea_list *to, ea_list *what);
void ea_format_bitfield(struct eattr *a, byte *buf, int bufsize, const char **names, int min, int max);
#define NEXTHOP_MAX_LABEL_STACK 8
#define NEXTHOP_MAX_SIZE (sizeof(struct nexthop) + sizeof(u32)*NEXTHOP_MAX_LABEL_STACK)
#define NEXTHOP_MAX_SIZE (sizeof(struct nexthop) + sizeof(u32)*MPLS_MAX_LABEL_STACK)
static inline size_t nexthop_size(const struct nexthop *nh)
{ return sizeof(struct nexthop) + sizeof(u32)*nh->labels; }
@@ -528,7 +527,7 @@ int nexthop_is_sorted(struct nexthop *x);
void rta_init(void);
static inline size_t rta_size(const rta *a) { return sizeof(rta) + sizeof(u32)*a->nh.labels; }
#define RTA_MAX_SIZE (sizeof(rta) + sizeof(u32)*NEXTHOP_MAX_LABEL_STACK)
#define RTA_MAX_SIZE (sizeof(rta) + sizeof(u32)*MPLS_MAX_LABEL_STACK)
rta *rta_lookup(rta *); /* Get rta equivalent to this one, uc++ */
static inline int rta_is_cached(rta *r) { return r->aflags & RTAF_CACHED; }
static inline rta *rta_clone(rta *r) { r->uc++; return r; }

4
nest/rt-attr.c
View File

@@ -1279,12 +1279,12 @@ rta_init(void)
rta_slab_[0] = sl_new(rta_pool, sizeof(rta));
rta_slab_[1] = sl_new(rta_pool, sizeof(rta) + sizeof(u32));
rta_slab_[2] = sl_new(rta_pool, sizeof(rta) + sizeof(u32)*2);
rta_slab_[3] = sl_new(rta_pool, sizeof(rta) + sizeof(u32)*NEXTHOP_MAX_LABEL_STACK);
rta_slab_[3] = sl_new(rta_pool, sizeof(rta) + sizeof(u32)*MPLS_MAX_LABEL_STACK);
nexthop_slab_[0] = sl_new(rta_pool, sizeof(struct nexthop));
nexthop_slab_[1] = sl_new(rta_pool, sizeof(struct nexthop) + sizeof(u32));
nexthop_slab_[2] = sl_new(rta_pool, sizeof(struct nexthop) + sizeof(u32)*2);
nexthop_slab_[3] = sl_new(rta_pool, sizeof(struct nexthop) + sizeof(u32)*NEXTHOP_MAX_LABEL_STACK);
nexthop_slab_[3] = sl_new(rta_pool, sizeof(struct nexthop) + sizeof(u32)*MPLS_MAX_LABEL_STACK);
rta_alloc_hash();
rte_src_init();

2
nest/rt-table.c
View File

@@ -2487,7 +2487,7 @@ rt_show_rte(struct cli *c, byte *ia, rte *e, struct rt_show_data *d, ea_list *tm
tm, from, primary ? (sync_error ? " !" : " *") : "", info);
for (nh = &(a->nh); nh; nh = nh->next)
{
char ls[NEXTHOP_MAX_LABEL_STACK*8 + 5]; char *lsp = ls;
char ls[MPLS_MAX_LABEL_STACK*8 + 5]; char *lsp = ls;
if (nh->labels)
{
lsp += bsprintf(lsp, " mpls %d", nh->label[0]);