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lib: add some nexthop ctors

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Add some apis that allocate and init nexthop objects
from various kinds of arguments: ip addrs, interfaces,
blackhole types.

Signed-off-by: Mark Stapp <mjs@voltanet.io>
This commit is contained in:
Mark Stapp 2019-11-22 11:10:42 -05:00
parent 5463ce26c3
commit f3323df26e
2 changed files with 104 additions and 0 deletions
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88
lib/nexthop.c
View File

@ -33,6 +33,7 @@
#include "mpls.h"
#include "jhash.h"
#include "printfrr.h"
#include "vrf.h"
DEFINE_MTYPE_STATIC(LIB, NEXTHOP, "Nexthop")
DEFINE_MTYPE_STATIC(LIB, NH_LABEL, "Nexthop label")
@ -281,6 +282,93 @@ bool nexthop_same_no_labels(const struct nexthop *nh1,
return true;
}
/*
* Allocate a new nexthop object and initialize it from various args.
*/
struct nexthop *nexthop_from_ifindex(ifindex_t ifindex, vrf_id_t vrf_id)
{
struct nexthop *nexthop;
nexthop = nexthop_new();
nexthop->type = NEXTHOP_TYPE_IFINDEX;
nexthop->ifindex = ifindex;
nexthop->vrf_id = vrf_id;
return nexthop;
}
struct nexthop *nexthop_from_ipv4(const struct in_addr *ipv4,
const struct in_addr *src,
vrf_id_t vrf_id)
{
struct nexthop *nexthop;
nexthop = nexthop_new();
nexthop->type = NEXTHOP_TYPE_IPV4;
nexthop->vrf_id = vrf_id;
nexthop->gate.ipv4 = *ipv4;
if (src)
nexthop->src.ipv4 = *src;
return nexthop;
}
struct nexthop *nexthop_from_ipv4_ifindex(const struct in_addr *ipv4,
const struct in_addr *src,
ifindex_t ifindex, vrf_id_t vrf_id)
{
struct nexthop *nexthop;
nexthop = nexthop_new();
nexthop->type = NEXTHOP_TYPE_IPV4_IFINDEX;
nexthop->vrf_id = vrf_id;
nexthop->gate.ipv4 = *ipv4;
if (src)
nexthop->src.ipv4 = *src;
nexthop->ifindex = ifindex;
return nexthop;
}
struct nexthop *nexthop_from_ipv6(const struct in6_addr *ipv6,
vrf_id_t vrf_id)
{
struct nexthop *nexthop;
nexthop = nexthop_new();
nexthop->vrf_id = vrf_id;
nexthop->type = NEXTHOP_TYPE_IPV6;
nexthop->gate.ipv6 = *ipv6;
return nexthop;
}
struct nexthop *nexthop_from_ipv6_ifindex(const struct in6_addr *ipv6,
ifindex_t ifindex, vrf_id_t vrf_id)
{
struct nexthop *nexthop;
nexthop = nexthop_new();
nexthop->vrf_id = vrf_id;
nexthop->type = NEXTHOP_TYPE_IPV6_IFINDEX;
nexthop->gate.ipv6 = *ipv6;
nexthop->ifindex = ifindex;
return nexthop;
}
struct nexthop *nexthop_from_blackhole(enum blackhole_type bh_type)
{
struct nexthop *nexthop;
nexthop = nexthop_new();
nexthop->vrf_id = VRF_DEFAULT;
nexthop->type = NEXTHOP_TYPE_BLACKHOLE;
nexthop->bh_type = bh_type;
return nexthop;
}
/* Update nexthop with label information. */
void nexthop_add_labels(struct nexthop *nexthop, enum lsp_types_t type,
uint8_t num_labels, mpls_label_t *label)

16
lib/nexthop.h
View File

@ -121,6 +121,22 @@ void nexthop_add_labels(struct nexthop *, enum lsp_types_t, uint8_t,
mpls_label_t *);
void nexthop_del_labels(struct nexthop *);
/*
* Allocate a new nexthop object and initialize it from various args.
*/
struct nexthop *nexthop_from_ifindex(ifindex_t ifindex, vrf_id_t vrf_id);
struct nexthop *nexthop_from_ipv4(const struct in_addr *ipv4,
const struct in_addr *src,
vrf_id_t vrf_id);
struct nexthop *nexthop_from_ipv4_ifindex(const struct in_addr *ipv4,
const struct in_addr *src,
ifindex_t ifindex, vrf_id_t vrf_id);
struct nexthop *nexthop_from_ipv6(const struct in6_addr *ipv6,
vrf_id_t vrf_id);
struct nexthop *nexthop_from_ipv6_ifindex(const struct in6_addr *ipv6,
ifindex_t ifindex, vrf_id_t vrf_id);
struct nexthop *nexthop_from_blackhole(enum blackhole_type bh_type);
/*
* Hash a nexthop. Suitable for use with hash tables.
*