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authorJoe Stringer <joe@wand.net.nz>2018-10-02 13:35:39 -0700
committerDaniel Borkmann <daniel@iogearbox.net>2018-10-03 02:53:48 +0200
commit29cd77f41620dca22bdee092217c16b49ece8915 (patch)
treefeaff57b3414658b3eeccbf2d91f94a0585bcc1b /tools/lib/bpf
parentb584ab8840fdc17f0d75ac62510396b8f657ed8f (diff)
libbpf: Support loading individual progs
Allow the individual program load to be invoked. This will help with testing, where a single ELF may contain several sections, some of which denote subprograms that are expected to fail verification, along with some which are expected to pass verification. By allowing programs to be iterated and individually loaded, each program can be independently checked against its expected verification result. Signed-off-by: Joe Stringer <joe@wand.net.nz> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Diffstat (limited to 'tools/lib/bpf')
-rw-r--r--tools/lib/bpf/libbpf.c4
-rw-r--r--tools/lib/bpf/libbpf.h3
2 files changed, 5 insertions, 2 deletions
diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
index 425d5ca45c97..9e68fd9fcfca 100644
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c
@@ -228,7 +228,7 @@ struct bpf_object {
};
#define obj_elf_valid(o) ((o)->efile.elf)
-static void bpf_program__unload(struct bpf_program *prog)
+void bpf_program__unload(struct bpf_program *prog)
{
int i;
@@ -1375,7 +1375,7 @@ out:
return ret;
}
-static int
+int
bpf_program__load(struct bpf_program *prog,
char *license, u32 kern_version)
{
diff --git a/tools/lib/bpf/libbpf.h b/tools/lib/bpf/libbpf.h
index 511c1294dcbf..2ed24d3f80b3 100644
--- a/tools/lib/bpf/libbpf.h
+++ b/tools/lib/bpf/libbpf.h
@@ -128,10 +128,13 @@ void bpf_program__set_ifindex(struct bpf_program *prog, __u32 ifindex);
const char *bpf_program__title(struct bpf_program *prog, bool needs_copy);
+int bpf_program__load(struct bpf_program *prog, char *license,
+ u32 kern_version);
int bpf_program__fd(struct bpf_program *prog);
int bpf_program__pin_instance(struct bpf_program *prog, const char *path,
int instance);
int bpf_program__pin(struct bpf_program *prog, const char *path);
+void bpf_program__unload(struct bpf_program *prog);
struct bpf_insn;