netdev - [PATCH 13/22] netfilter: split nf

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20200717062331.691152-14-hch@lst.de>
Date:   Fri, 17 Jul 2020 08:23:22 +0200
From:   Christoph Hellwig <hch@....de>
To:     "David S. Miller" <davem@...emloft.net>
Cc:     Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Chas Williams <3chas3@...il.com>,
        Pablo Neira Ayuso <pablo@...filter.org>,
        Jozsef Kadlecsik <kadlec@...filter.org>,
        Florian Westphal <fw@...len.de>,
        Alexey Kuznetsov <kuznet@....inr.ac.ru>,
        Hideaki YOSHIFUJI <yoshfuji@...ux-ipv6.org>,
        linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
        bpf@...r.kernel.org, netfilter-devel@...r.kernel.org,
        linux-sctp@...r.kernel.org, linux-arch@...r.kernel.org,
        linux-bluetooth@...r.kernel.org, bridge@...ts.linux-foundation.org,
        linux-can@...r.kernel.org, dccp@...r.kernel.org,
        linux-wpan@...r.kernel.org, mptcp@...ts.01.org
Subject: [PATCH 13/22] netfilter: split nf_sockopt

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

Signed-off-by: Christoph Hellwig <hch@....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