diff options
author | Eric Dumazet | 2015-03-16 05:12:16 +0100 |
---|---|---|
committer | David S. Miller | 2015-03-16 20:55:29 +0100 |
commit | 13854e5a60461daee08ce99842b7f4d37553d911 (patch) | |
tree | f7bf7650ead7d8af1e93d98114da5cd1bf658956 /net/ipv4/syncookies.c | |
parent | inet: factorize sock_edemux()/sock_gen_put() code (diff) | |
download | kernel-qcow2-linux-13854e5a60461daee08ce99842b7f4d37553d911.tar.gz kernel-qcow2-linux-13854e5a60461daee08ce99842b7f4d37553d911.tar.xz kernel-qcow2-linux-13854e5a60461daee08ce99842b7f4d37553d911.zip |
inet: add proper refcounting to request sock
reqsk_put() is the generic function that should be used
to release a refcount (and automatically call reqsk_free())
reqsk_free() might be called if refcount is known to be 0
or undefined.
refcnt is set to one in inet_csk_reqsk_queue_add()
As request socks are not yet in global ehash table,
I added temporary debugging checks in reqsk_put() and reqsk_free()
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/syncookies.c')
-rw-r--r-- | net/ipv4/syncookies.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/net/ipv4/syncookies.c b/net/ipv4/syncookies.c index f17db898ed26..5ae0c49f5e2e 100644 --- a/net/ipv4/syncookies.c +++ b/net/ipv4/syncookies.c @@ -219,9 +219,9 @@ int __cookie_v4_check(const struct iphdr *iph, const struct tcphdr *th, } EXPORT_SYMBOL_GPL(__cookie_v4_check); -static inline struct sock *get_cookie_sock(struct sock *sk, struct sk_buff *skb, - struct request_sock *req, - struct dst_entry *dst) +static struct sock *get_cookie_sock(struct sock *sk, struct sk_buff *skb, + struct request_sock *req, + struct dst_entry *dst) { struct inet_connection_sock *icsk = inet_csk(sk); struct sock *child; @@ -357,7 +357,7 @@ struct sock *cookie_v4_check(struct sock *sk, struct sk_buff *skb) ireq->opt = tcp_v4_save_options(skb); if (security_inet_conn_request(sk, skb, req)) { - reqsk_free(req); + reqsk_put(req); goto out; } @@ -378,7 +378,7 @@ struct sock *cookie_v4_check(struct sock *sk, struct sk_buff *skb) security_req_classify_flow(req, flowi4_to_flowi(&fl4)); rt = ip_route_output_key(sock_net(sk), &fl4); if (IS_ERR(rt)) { - reqsk_free(req); + reqsk_put(req); goto out; } |