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 <[email protected]> Signed-off-by: David S. Miller <[email protected]>
opendata26 · Nov 11, 2017 · 1852719 · 1852719
1 parent 329fca6
commit 1852719
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Showing 2 changed files with 14 additions and 2 deletions.
diff --git 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
@@ -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));