On 2/3/19, 12:15 AM, "Yafang Shao" <laoar.s...@gmail.com> wrote:
Then we can enable/disable socket debugging without modifying user code.
That is more convenient for debugging.
Signed-off-by: Yafang Shao <laoar.s...@gmail.com>
Acked-by: Lawrence Brakmo <bra...@fb.com>
---
include/net/sock.h | 8 ++++++++
net/core/filter.c | 3 +++
net/core/sock.c | 8 --------
3 files changed, 11 insertions(+), 8 deletions(-)
diff --git a/include/net/sock.h b/include/net/sock.h
index 2b229f7..8decee9 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -1935,6 +1935,14 @@ static inline void sock_confirm_neigh(struct sk_buff
*skb, struct neighbour *n)
}
}
+static inline void sock_valbool_flag(struct sock *sk, int bit, int valbool)
+{
+ if (valbool)
+ sock_set_flag(sk, bit);
+ else
+ sock_reset_flag(sk, bit);
+}
+
bool sk_mc_loop(struct sock *sk);
static inline bool sk_can_gso(const struct sock *sk)
diff --git a/net/core/filter.c b/net/core/filter.c
index 3a49f68..ce5da57 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -4111,6 +4111,9 @@ static unsigned long bpf_xdp_copy(void *dst_buff,
const void *src_buff,
/* Only some socketops are supported */
switch (optname) {
+ case SO_DEBUG:
+ sock_valbool_flag(sk, SOCK_DBG, val);
+ break;
case SO_RCVBUF:
sk->sk_userlocks |= SOCK_RCVBUF_LOCK;
sk->sk_rcvbuf = max_t(int, val * 2, SOCK_MIN_RCVBUF);
diff --git a/net/core/sock.c b/net/core/sock.c
index 900e8a9..5ef6daa 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -638,14 +638,6 @@ static int sock_getbindtodevice(struct sock *sk, char
__user *optval,
return ret;
}
-static inline void sock_valbool_flag(struct sock *sk, int bit, int valbool)
-{
- if (valbool)
- sock_set_flag(sk, bit);
- else
- sock_reset_flag(sk, bit);
-}
-
bool sk_mc_loop(struct sock *sk)
{
if (dev_recursion_level())
--
1.8.3.1
