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tools: libbpf: allow setting ifindex for programs and maps 

Users of bpf_object__open()/bpf_object__load() APIs may want to
load the programs and maps onto a device for offload.  Allow
setting ifindex on those sub-objects.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
This commit is contained in:
Jakub Kicinski 2018-06-28 14:41:37 -07:00 committed by Daniel Borkmann
parent d9b683d746
commit 9aba36139a
2 changed files with 12 additions and 0 deletions
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10
tools/lib/bpf/libbpf.c
View File

@ -1896,6 +1896,11 @@ void *bpf_program__priv(struct bpf_program *prog)
return prog ? prog->priv : ERR_PTR(-EINVAL);
}
void bpf_program__set_ifindex(struct bpf_program *prog, __u32 ifindex)
{
prog->prog_ifindex = ifindex;
}
const char *bpf_program__title(struct bpf_program *prog, bool needs_copy)
{
const char *title;
@ -2122,6 +2127,11 @@ void *bpf_map__priv(struct bpf_map *map)
return map ? map->priv : ERR_PTR(-EINVAL);
}
void bpf_map__set_ifindex(struct bpf_map *map, __u32 ifindex)
{
map->map_ifindex = ifindex;
}
struct bpf_map *
bpf_map__next(struct bpf_map *prev, struct bpf_object *obj)
{

2
tools/lib/bpf/libbpf.h
View File

@ -109,6 +109,7 @@ int bpf_program__set_priv(struct bpf_program *prog, void *priv,
bpf_program_clear_priv_t clear_priv);
void *bpf_program__priv(struct bpf_program *prog);
void bpf_program__set_ifindex(struct bpf_program *prog, __u32 ifindex);
const char *bpf_program__title(struct bpf_program *prog, bool needs_copy);
@ -251,6 +252,7 @@ typedef void (*bpf_map_clear_priv_t)(struct bpf_map *, void *);
int bpf_map__set_priv(struct bpf_map *map, void *priv,
bpf_map_clear_priv_t clear_priv);
void *bpf_map__priv(struct bpf_map *map);
void bpf_map__set_ifindex(struct bpf_map *map, __u32 ifindex);
int bpf_map__pin(struct bpf_map *map, const char *path);
long libbpf_get_error(const void *ptr);