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From: Christoph Hellwig <hch@lst.de>
To: "David S. Miller" <davem@davemloft.net>
Cc: Alexei Starovoitov <ast@kernel.org>,
	Daniel Borkmann <daniel@iogearbox.net>,
	Chas Williams <3chas3@gmail.com>,
	Pablo Neira Ayuso <pablo@netfilter.org>,
	Jozsef Kadlecsik <kadlec@netfilter.org>,
	Florian Westphal <fw@strlen.de>,
	Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>,
	Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>,
	linux-kernel@vger.kernel.org, netdev@vger.kernel.org,
	bpf@vger.kernel.org, netfilter-devel@vger.kernel.org,
	linux-sctp@vger.kernel.org, linux-arch@vger.kernel.org,
	linux-bluetooth@vger.kernel.org,
	bridge@lists.linux-foundation.org, linux-can@vger.kernel.org,
	dccp@vger.kernel.org, linux-wpan@vger.kernel.org,
	mptcp@lists.01.org
Subject: [PATCH 13/22] netfilter: split nf_sockopt
Date: Fri, 17 Jul 2020 08:23:22 +0200
Message-ID: <20200717062331.691152-14-hch@lst.de> (raw)
In-Reply-To: <20200717062331.691152-1-hch@lst.de>

Split nf_sockopt into a getsockopt and setsockopt side as they share
very little code.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 net/netfilter/nf_sockopt.c | 30 +++++++++++++-----------------
 1 file changed, 13 insertions(+), 17 deletions(-)

diff --git a/net/netfilter/nf_sockopt.c b/net/netfilter/nf_sockopt.c
index 02870993d335c9..90469b1f628a8e 100644
--- a/net/netfilter/nf_sockopt.c
+++ b/net/netfilter/nf_sockopt.c
@@ -89,36 +89,32 @@ static struct nf_sockopt_ops *nf_sockopt_find(struct sock *sk, u_int8_t pf,
 	return ops;
 }
 
-/* Call get/setsockopt() */
-static int nf_sockopt(struct sock *sk, u_int8_t pf, int val,
-		      char __user *opt, int *len, int get)
+int nf_setsockopt(struct sock *sk, u_int8_t pf, int val, char __user *opt,
+		  unsigned int len)
 {
 	struct nf_sockopt_ops *ops;
 	int ret;
 
-	ops = nf_sockopt_find(sk, pf, val, get);
+	ops = nf_sockopt_find(sk, pf, val, 0);
 	if (IS_ERR(ops))
 		return PTR_ERR(ops);
-
-	if (get)
-		ret = ops->get(sk, val, opt, len);
-	else
-		ret = ops->set(sk, val, opt, *len);
-
+	ret = ops->set(sk, val, opt, len);
 	module_put(ops->owner);
 	return ret;
 }
-
-int nf_setsockopt(struct sock *sk, u_int8_t pf, int val, char __user *opt,
-		  unsigned int len)
-{
-	return nf_sockopt(sk, pf, val, opt, &len, 0);
-}
 EXPORT_SYMBOL(nf_setsockopt);
 
 int nf_getsockopt(struct sock *sk, u_int8_t pf, int val, char __user *opt,
 		  int *len)
 {
-	return nf_sockopt(sk, pf, val, opt, len, 1);
+	struct nf_sockopt_ops *ops;
+	int ret;
+
+	ops = nf_sockopt_find(sk, pf, val, 1);
+	if (IS_ERR(ops))
+		return PTR_ERR(ops);
+	ret = ops->get(sk, val, opt, len);
+	module_put(ops->owner);
+	return ret;
 }
 EXPORT_SYMBOL(nf_getsockopt);
-- 
2.27.0


  parent reply index

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-17  6:23 sockopt cleanups Christoph Hellwig
2020-07-17  6:23 ` [PATCH 01/22] net/atm: remove the atmdev_ops {get,set}sockopt methods Christoph Hellwig
2020-07-17  6:23 ` [PATCH 02/22] net: streamline __sys_setsockopt Christoph Hellwig
2020-07-17  6:23 ` [PATCH 03/22] net: streamline __sys_getsockopt Christoph Hellwig
2020-07-17  6:23 ` [PATCH 04/22] net: simplify cBPF setsockopt compat handling Christoph Hellwig
2020-07-17  6:23 ` [PATCH 05/22] net: remove compat_sock_common_{get,set}sockopt Christoph Hellwig
2020-07-17  9:18   ` [MPTCP] " Matthieu Baerts
2020-07-17  9:26   ` Stefan Schmidt
2020-07-17  6:23 ` [PATCH 06/22] net: remove compat_sys_{get,set}sockopt Christoph Hellwig
2020-07-17  6:23 ` [PATCH 07/22] netfilter/arp_tables: clean up compat {get,set}sockopt handling Christoph Hellwig
2020-07-17  6:23 ` [PATCH 08/22] netfilter/ip_tables: " Christoph Hellwig
2020-07-17  6:23 ` [PATCH 09/22] netfilter/ip6_tables: " Christoph Hellwig
2020-07-17  6:23 ` [PATCH 10/22] netfilter/ebtables: " Christoph Hellwig
2020-07-17  6:23 ` [PATCH 11/22] netfilter: remove the compat_{get,set} methods Christoph Hellwig
2020-07-17  6:23 ` [PATCH 12/22] netfilter: remove the compat argument to xt_copy_counters_from_user Christoph Hellwig
2020-07-17  6:23 ` Christoph Hellwig [this message]
2020-07-17  6:23 ` [PATCH 14/22] net/ipv4: factor out MCAST_MSFILTER getsockopt helpers Christoph Hellwig
2020-07-17  6:23 ` [PATCH 15/22] net/ipv4: factor out MCAST_MSFILTER setsockopt helpers Christoph Hellwig
2020-07-17  6:23 ` [PATCH 16/22] net/ipv4: factor out mcast join/leave " Christoph Hellwig
2020-07-17  6:23 ` [PATCH 17/22] net/ipv4: remove compat_ip_{get,set}sockopt Christoph Hellwig
2020-07-17  6:23 ` [PATCH 18/22] net/ipv6: factor out MCAST_MSFILTER getsockopt helpers Christoph Hellwig
2020-07-17  6:23 ` [PATCH 19/22] net/ipv6: factor out MCAST_MSFILTER setsockopt helpers Christoph Hellwig
2020-07-17  6:23 ` [PATCH 20/22] net/ipv6: factor out mcast join/leave " Christoph Hellwig
2020-07-17  6:23 ` [PATCH 21/22] net/ipv6: remove compat_ipv6_{get,set}sockopt Christoph Hellwig
2020-07-17  6:23 ` [PATCH 22/22] net: make ->{get,set}sockopt in proto_ops optional Christoph Hellwig
2020-07-17  8:01   ` Marc Kleine-Budde
2020-07-20  1:16 ` sockopt cleanups David Miller

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