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authorJohn Fastabend <john.fastabend@gmail.com>2017-08-28 07:10:04 -0700
committerDavid S. Miller <davem@davemloft.net>2017-08-28 11:13:21 -0700
commit464bc0fd6273d518aee79fbd37211dd9bc35d863 (patch)
tree32280f0588583c50f6712de2ad0e3af886dcaadd /tools/lib/bpf
parent901c5d2fbfcdc5d1d49a7a835b9ce9be5eee6393 (diff)
bpf: convert sockmap field attach_bpf_fd2 to type
In the initial sockmap API we provided strparser and verdict programs using a single attach command by extending the attach API with a the attach_bpf_fd2 field. However, if we add other programs in the future we will be adding a field for every new possible type, attach_bpf_fd(3,4,..). This seems a bit clumsy for an API. So lets push the programs using two new type fields. BPF_SK_SKB_STREAM_PARSER BPF_SK_SKB_STREAM_VERDICT This has the advantage of having a readable name and can easily be extended in the future. Updates to samples and sockmap included here also generalize tests slightly to support upcoming patch for multiple map support. Signed-off-by: John Fastabend <john.fastabend@gmail.com> Fixes: 174a79ff9515 ("bpf: sockmap with sk redirect support") Suggested-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'tools/lib/bpf')
-rw-r--r--tools/lib/bpf/bpf.c14
-rw-r--r--tools/lib/bpf/bpf.h4
2 files changed, 3 insertions, 15 deletions
diff --git a/tools/lib/bpf/bpf.c b/tools/lib/bpf/bpf.c
index a0717610b116..1d6907d379c9 100644
--- a/tools/lib/bpf/bpf.c
+++ b/tools/lib/bpf/bpf.c
@@ -235,28 +235,20 @@ int bpf_obj_get(const char *pathname)
return sys_bpf(BPF_OBJ_GET, &attr, sizeof(attr));
}
-int __bpf_prog_attach(int prog_fd1, int prog_fd2, int target_fd,
- enum bpf_attach_type type,
- unsigned int flags)
+int bpf_prog_attach(int prog_fd, int target_fd, enum bpf_attach_type type,
+ unsigned int flags)
{
union bpf_attr attr;
bzero(&attr, sizeof(attr));
attr.target_fd = target_fd;
- attr.attach_bpf_fd = prog_fd1;
- attr.attach_bpf_fd2 = prog_fd2;
+ attr.attach_bpf_fd = prog_fd;
attr.attach_type = type;
attr.attach_flags = flags;
return sys_bpf(BPF_PROG_ATTACH, &attr, sizeof(attr));
}
-int bpf_prog_attach(int prog_fd, int target_fd, enum bpf_attach_type type,
- unsigned int flags)
-{
- return __bpf_prog_attach(prog_fd, 0, target_fd, type, flags);
-}
-
int bpf_prog_detach(int target_fd, enum bpf_attach_type type)
{
union bpf_attr attr;
diff --git a/tools/lib/bpf/bpf.h b/tools/lib/bpf/bpf.h
index 90e9d4e85d08..b8ea5843c39e 100644
--- a/tools/lib/bpf/bpf.h
+++ b/tools/lib/bpf/bpf.h
@@ -56,10 +56,6 @@ int bpf_obj_pin(int fd, const char *pathname);
int bpf_obj_get(const char *pathname);
int bpf_prog_attach(int prog_fd, int attachable_fd, enum bpf_attach_type type,
unsigned int flags);
-int __bpf_prog_attach(int prog1, int prog2,
- int attachable_fd,
- enum bpf_attach_type type,
- unsigned int flags);
int bpf_prog_detach(int attachable_fd, enum bpf_attach_type type);
int bpf_prog_test_run(int prog_fd, int repeat, void *data, __u32 size,
void *data_out, __u32 *size_out, __u32 *retval,