Commit aee65746 authored by Daniel Borkmann's avatar Daniel Borkmann

Merge branch 'bpf-bpftool-various-fixes'

Jakub Kicinski says:

====================
Two small fixes here to listing maps and programs.  The loop for showing
maps is written slightly differently to programs which was missed in JSON
output support, and output would be broken if any of the system calls
failed.  Second fix is in very unlikely case that program or map disappears
after we get its ID we should just skip over that object instead of failing.
====================
Signed-off-by: default avatarDaniel Borkmann <daniel@iogearbox.net>
parents cd95a892 8207c6dd
......@@ -523,21 +523,23 @@ static int do_show(int argc, char **argv)
break;
p_err("can't get next map: %s%s", strerror(errno),
errno == EINVAL ? " -- kernel too old?" : "");
return -1;
break;
}
fd = bpf_map_get_fd_by_id(id);
if (fd < 0) {
if (errno == ENOENT)
continue;
p_err("can't get map by id (%u): %s",
id, strerror(errno));
return -1;
break;
}
err = bpf_obj_get_info_by_fd(fd, &info, &len);
if (err) {
p_err("can't get map info: %s", strerror(errno));
close(fd);
return -1;
break;
}
if (json_output)
......
......@@ -382,6 +382,8 @@ static int do_show(int argc, char **argv)
fd = bpf_prog_get_fd_by_id(id);
if (fd < 0) {
if (errno == ENOENT)
continue;
p_err("can't get prog by id (%u): %s",
id, strerror(errno));
err = -1;
......
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