diff options
| author | Daniel Borkmann <daniel@iogearbox.net> | 2019-04-09 23:20:07 +0200 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2019-04-09 17:05:46 -0700 |
| commit | 3e0ddc4f3ff1436970e96e76f3df3c3b5f5173b6 (patch) | |
| tree | b63d2fbe0bbbe27f537a8119ad83f09a715227e6 | |
| parent | 87df15de441bd4add7876ef584da8cabdd9a042a (diff) | |
bpf: allow . char as part of the object name
Trivial addition to allow '.' aside from '_' as "special" characters
in the object name. Used to allow for substrings in maps from loader
side such as ".bss", ".data", ".rodata", but could also be useful for
other purposes.
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
| -rw-r--r-- | kernel/bpf/syscall.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c index b3ce516e5a20..198c9680bf0d 100644 --- a/kernel/bpf/syscall.c +++ b/kernel/bpf/syscall.c @@ -474,10 +474,10 @@ static int bpf_obj_name_cpy(char *dst, const char *src) const char *end = src + BPF_OBJ_NAME_LEN; memset(dst, 0, BPF_OBJ_NAME_LEN); - - /* Copy all isalnum() and '_' char */ + /* Copy all isalnum(), '_' and '.' chars. */ while (src < end && *src) { - if (!isalnum(*src) && *src != '_') + if (!isalnum(*src) && + *src != '_' && *src != '.') return -EINVAL; *dst++ = *src++; } |