From 3e0ddc4f3ff1436970e96e76f3df3c3b5f5173b6 Mon Sep 17 00:00:00 2001 From: Daniel Borkmann Date: Tue, 9 Apr 2019 23:20:07 +0200 Subject: 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 Acked-by: Andrii Nakryiko Acked-by: Martin KaFai Lau Signed-off-by: Alexei Starovoitov --- kernel/bpf/syscall.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'kernel') 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++; } -- cgit v1.2.1