tools: bpftool: open pinned object without type check

This was needed for opening any file in bpf-fs without knowing
its object type

Signed-off-by: Prashant Bhole <bhole_prashant_q7@lab.ntt.co.jp>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/tools/bpf/bpftool/common.c b/tools/bpf/bpftool/common.c
index aa70170..6b3d25d 100644 (file)
--- a/tools/bpf/bpftool/common.c
+++ b/tools/bpf/bpftool/common.c
@@ -122,9 +122,8 @@ static int mnt_bpffs(const char *target, char *buff, size_t bufflen)
        return 0;
 }
 
-int open_obj_pinned_any(char *path, enum bpf_obj_type exp_type)
+int open_obj_pinned(char *path)
 {
-       enum bpf_obj_type type;
        int fd;
 
        fd = bpf_obj_get(path);
@@ -136,6 +135,18 @@ int open_obj_pinned_any(char *path, enum bpf_obj_type exp_type)
                return -1;
        }
 
+       return fd;
+}
+
+int open_obj_pinned_any(char *path, enum bpf_obj_type exp_type)
+{
+       enum bpf_obj_type type;
+       int fd;
+
+       fd = open_obj_pinned(path);
+       if (fd < 0)
+               return -1;
+
        type = get_fd_type(fd);
        if (type < 0) {
                close(fd);

diff --git a/tools/bpf/bpftool/main.h b/tools/bpf/bpftool/main.h
index ff5ad05..2ff2a36 100644 (file)
--- a/tools/bpf/bpftool/main.h
+++ b/tools/bpf/bpftool/main.h
@@ -89,6 +89,7 @@ int cmd_select(const struct cmd *cmds, int argc, char **argv,
 int get_fd_type(int fd);
 const char *get_fd_type_name(enum bpf_obj_type type);
 char *get_fdinfo(int fd, const char *key);
+int open_obj_pinned(char *path);
 int open_obj_pinned_any(char *path, enum bpf_obj_type exp_type);
 int do_pin_any(int argc, char **argv, int (*get_fd_by_id)(__u32));