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Message-Id: <20200717062331.691152-12-hch@lst.de>
Date: Fri, 17 Jul 2020 08:23:20 +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 11/22] netfilter: remove the compat_{get,set} methods
All instances handle compat sockopts via in_compat_syscall() now, so
remove the compat_{get,set} methods as well as the
compat_nf_{get,set}sockopt wrappers.
Signed-off-by: Christoph Hellwig <hch@....de>
---
include/linux/netfilter.h | 14 -------------
net/ipv4/ip_sockglue.c | 5 ++---
net/ipv6/ipv6_sockglue.c | 5 ++---
net/netfilter/nf_sockopt.c | 42 --------------------------------------
4 files changed, 4 insertions(+), 62 deletions(-)
diff --git a/include/linux/netfilter.h b/include/linux/netfilter.h
index eb312e7ca36ee5..711b4d4486f042 100644
--- a/include/linux/netfilter.h
+++ b/include/linux/netfilter.h
@@ -164,17 +164,9 @@ struct nf_sockopt_ops {
int set_optmin;
int set_optmax;
int (*set)(struct sock *sk, int optval, void __user *user, unsigned int len);
-#ifdef CONFIG_COMPAT
- int (*compat_set)(struct sock *sk, int optval,
- void __user *user, unsigned int len);
-#endif
int get_optmin;
int get_optmax;
int (*get)(struct sock *sk, int optval, void __user *user, int *len);
-#ifdef CONFIG_COMPAT
- int (*compat_get)(struct sock *sk, int optval,
- void __user *user, int *len);
-#endif
/* Use the module struct to lock set/get code in place */
struct module *owner;
};
@@ -350,12 +342,6 @@ int nf_setsockopt(struct sock *sk, u_int8_t pf, int optval, char __user *opt,
unsigned int len);
int nf_getsockopt(struct sock *sk, u_int8_t pf, int optval, char __user *opt,
int *len);
-#ifdef CONFIG_COMPAT
-int compat_nf_setsockopt(struct sock *sk, u_int8_t pf, int optval,
- char __user *opt, unsigned int len);
-int compat_nf_getsockopt(struct sock *sk, u_int8_t pf, int optval,
- char __user *opt, int *len);
-#endif
struct flowi;
struct nf_queue_entry;
diff --git a/net/ipv4/ip_sockglue.c b/net/ipv4/ip_sockglue.c
index 84ec3703c90916..95f4248c6fc5ed 100644
--- a/net/ipv4/ip_sockglue.c
+++ b/net/ipv4/ip_sockglue.c
@@ -1446,8 +1446,7 @@ int compat_ip_setsockopt(struct sock *sk, int level, int optname,
optname != IP_IPSEC_POLICY &&
optname != IP_XFRM_POLICY &&
!ip_mroute_opt(optname))
- err = compat_nf_setsockopt(sk, PF_INET, optname, optval,
- optlen);
+ err = nf_setsockopt(sk, PF_INET, optname, optval, optlen);
#endif
return err;
}
@@ -1821,7 +1820,7 @@ int compat_ip_getsockopt(struct sock *sk, int level, int optname,
if (get_user(len, optlen))
return -EFAULT;
- err = compat_nf_getsockopt(sk, PF_INET, optname, optval, &len);
+ err = nf_getsockopt(sk, PF_INET, optname, optval, &len);
if (err >= 0)
err = put_user(len, optlen);
return err;
diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c
index 6ab44ec2c369da..6adfbdcb7979bd 100644
--- a/net/ipv6/ipv6_sockglue.c
+++ b/net/ipv6/ipv6_sockglue.c
@@ -1030,8 +1030,7 @@ int compat_ipv6_setsockopt(struct sock *sk, int level, int optname,
/* we need to exclude all possible ENOPROTOOPTs except default case */
if (err == -ENOPROTOOPT && optname != IPV6_IPSEC_POLICY &&
optname != IPV6_XFRM_POLICY)
- err = compat_nf_setsockopt(sk, PF_INET6, optname, optval,
- optlen);
+ err = nf_setsockopt(sk, PF_INET6, optname, optval, optlen);
#endif
return err;
}
@@ -1531,7 +1530,7 @@ int compat_ipv6_getsockopt(struct sock *sk, int level, int optname,
if (get_user(len, optlen))
return -EFAULT;
- err = compat_nf_getsockopt(sk, PF_INET6, optname, optval, &len);
+ err = nf_getsockopt(sk, PF_INET6, optname, optval, &len);
if (err >= 0)
err = put_user(len, optlen);
}
diff --git a/net/netfilter/nf_sockopt.c b/net/netfilter/nf_sockopt.c
index 46cb3786e0ec5c..02870993d335c9 100644
--- a/net/netfilter/nf_sockopt.c
+++ b/net/netfilter/nf_sockopt.c
@@ -122,45 +122,3 @@ int nf_getsockopt(struct sock *sk, u_int8_t pf, int val, char __user *opt,
return nf_sockopt(sk, pf, val, opt, len, 1);
}
EXPORT_SYMBOL(nf_getsockopt);
-
-#ifdef CONFIG_COMPAT
-static int compat_nf_sockopt(struct sock *sk, u_int8_t pf, int val,
- char __user *opt, int *len, int get)
-{
- struct nf_sockopt_ops *ops;
- int ret;
-
- ops = nf_sockopt_find(sk, pf, val, get);
- if (IS_ERR(ops))
- return PTR_ERR(ops);
-
- if (get) {
- if (ops->compat_get)
- ret = ops->compat_get(sk, val, opt, len);
- else
- ret = ops->get(sk, val, opt, len);
- } else {
- if (ops->compat_set)
- ret = ops->compat_set(sk, val, opt, *len);
- else
- ret = ops->set(sk, val, opt, *len);
- }
-
- module_put(ops->owner);
- return ret;
-}
-
-int compat_nf_setsockopt(struct sock *sk, u_int8_t pf,
- int val, char __user *opt, unsigned int len)
-{
- return compat_nf_sockopt(sk, pf, val, opt, &len, 0);
-}
-EXPORT_SYMBOL(compat_nf_setsockopt);
-
-int compat_nf_getsockopt(struct sock *sk, u_int8_t pf,
- int val, char __user *opt, int *len)
-{
- return compat_nf_sockopt(sk, pf, val, opt, len, 1);
-}
-EXPORT_SYMBOL(compat_nf_getsockopt);
-#endif
--
2.27.0
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