path: root/tools/net/bpf_dbg.c
diff options
authorDaniel Borkmann <dborkman@redhat.com>2013-12-16 11:45:00 +0100
committerDavid S. Miller <davem@davemloft.net>2013-12-17 17:11:00 -0500
commit8b138da62f3ef370bebaaed7385020993bb787ae (patch)
tree38169f4e3cc5897a268209d9c4fdbc0888e01d21 /tools/net/bpf_dbg.c
parentMerge branch 'qlcnic' (diff)
bpf_dbg: always close socket in bpf_runnable
We must not leave the socket intact in bpf_runnable(). The socket is used to test if the filter code is being accepted by the kernel or not. So right after we do the setsockopt(2), we need to close it again. Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'tools/net/bpf_dbg.c')
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/net/bpf_dbg.c b/tools/net/bpf_dbg.c
index 0fdcb707a2e7..65dc757f7f7b 100644
--- a/tools/net/bpf_dbg.c
+++ b/tools/net/bpf_dbg.c
@@ -512,11 +512,11 @@ static bool bpf_runnable(struct sock_filter *f, unsigned int len)
return false;
ret = setsockopt(sock, SOL_SOCKET, SO_ATTACH_FILTER, &bpf, sizeof(bpf));
+ close(sock);
if (ret < 0) {
rl_printf("program not allowed to run by kernel!\n");
return false;
- close(sock);
for (i = 0; i < len; i++) {
if (BPF_CLASS(f[i].code) == BPF_LD &&
f[i].k > SKF_AD_OFF) {