[21/22] net/ipv6: remove compat_ipv6_{get,set}sockopt

Message ID	20200717062331.691152-22-hch@lst.de (mailing list archive)
State	Awaiting Upstream
Headers	show Return-Path: <SRS0=NfXf=A4=vger.kernel.org=linux-wpan-owner@kernel.org> 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 21/22] net/ipv6: remove compat_ipv6_{get,set}sockopt Date: Fri, 17 Jul 2020 08:23:30 +0200 Message-Id: <20200717062331.691152-22-hch@lst.de> In-Reply-To: <20200717062331.691152-1-hch@lst.de> References: <20200717062331.691152-1-hch@lst.de> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-wpan-owner@vger.kernel.org Precedence: bulk
Series	[01/22] net/atm: remove the atmdev_ops {get,set}sockopt methods \| expand [01/22] net/atm: remove the atmdev_ops {get,set}sockopt methods [02/22] net: streamline __sys_setsockopt [03/22] net: streamline __sys_getsockopt [04/22] net: simplify cBPF setsockopt compat handling [05/22] net: remove compat_sock_common_{get,set}sockopt [06/22] net: remove compat_sys_{get,set}sockopt [07/22] netfilter/arp_tables: clean up compat {get,set}sockopt handling [08/22] netfilter/ip_tables: clean up compat {get,set}sockopt handling [09/22] netfilter/ip6_tables: clean up compat {get,set}sockopt handling [10/22] netfilter/ebtables: clean up compat {get,set}sockopt handling [11/22] netfilter: remove the compat_{get,set} methods [12/22] netfilter: remove the compat argument to xt_copy_counters_from_user [13/22] netfilter: split nf_sockopt [14/22] net/ipv4: factor out MCAST_MSFILTER getsockopt helpers [15/22] net/ipv4: factor out MCAST_MSFILTER setsockopt helpers [16/22] net/ipv4: factor out mcast join/leave setsockopt helpers [17/22] net/ipv4: remove compat_ip_{get,set}sockopt [18/22] net/ipv6: factor out MCAST_MSFILTER getsockopt helpers [19/22] net/ipv6: factor out MCAST_MSFILTER setsockopt helpers [20/22] net/ipv6: factor out mcast join/leave setsockopt helpers [21/22] net/ipv6: remove compat_ipv6_{get,set}sockopt [22/22] net: make ->{get,set}sockopt in proto_ops optional

diff --git a/include/net/inet_connection_sock.h b/include/net/inet_connection_sock.h index e5b388f5fa2099..157c60cca0ca60 100644 --- a/include/net/inet_connection_sock.h +++ b/include/net/inet_connection_sock.h @@ -48,14 +48,6 @@ struct inet_connection_sock_af_ops { char __user *optval, unsigned int optlen); int (*getsockopt)(struct sock *sk, int level, int optname, char __user *optval, int __user *optlen); -#ifdef CONFIG_COMPAT - int (*compat_setsockopt)(struct sock *sk, - int level, int optname, - char __user *optval, unsigned int optlen); - int (*compat_getsockopt)(struct sock *sk, - int level, int optname, - char __user *optval, int __user *optlen); -#endif void (*addr2sockaddr)(struct sock *sk, struct sockaddr *); void (*mtu_reduced)(struct sock *sk); }; @@ -311,11 +303,6 @@ void inet_csk_listen_stop(struct sock *sk); void inet_csk_addr2sockaddr(struct sock *sk, struct sockaddr *uaddr); -int inet_csk_compat_getsockopt(struct sock *sk, int level, int optname, - char __user *optval, int __user *optlen); -int inet_csk_compat_setsockopt(struct sock *sk, int level, int optname, - char __user *optval, unsigned int optlen); - struct dst_entry *inet_csk_update_pmtu(struct sock *sk, u32 mtu); #define TCP_PINGPONG_THRESH 3 diff --git a/include/net/ipv6.h b/include/net/ipv6.h index 5e65bf2fd32d09..262fc88dbd7e2f 100644 --- a/include/net/ipv6.h +++ b/include/net/ipv6.h @@ -1088,10 +1088,6 @@ int ipv6_setsockopt(struct sock *sk, int level, int optname, char __user *optval, unsigned int optlen); int ipv6_getsockopt(struct sock *sk, int level, int optname, char __user *optval, int __user *optlen); -int compat_ipv6_setsockopt(struct sock *sk, int level, int optname, - char __user *optval, unsigned int optlen); -int compat_ipv6_getsockopt(struct sock *sk, int level, int optname, - char __user *optval, int __user *optlen); int __ip6_datagram_connect(struct sock *sk, struct sockaddr *addr, int addr_len); diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h index 9bbb2f60db9262..233bbf7df5d66c 100644 --- a/include/net/sctp/structs.h +++ b/include/net/sctp/structs.h @@ -438,16 +438,6 @@ struct sctp_af { int optname, char __user *optval, int __user *optlen); - int (*compat_setsockopt) (struct sock *sk, - int level, - int optname, - char __user *optval, - unsigned int optlen); - int (*compat_getsockopt) (struct sock *sk, - int level, - int optname, - char __user *optval, - int __user *optlen); void (*get_dst) (struct sctp_transport *t, union sctp_addr *saddr, struct flowi *fl, diff --git a/include/net/sock.h b/include/net/sock.h index 1fd7cf5fc7516c..3bd8bc578bf3e5 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -1147,14 +1147,6 @@ struct proto { int __user *option); void (*keepalive)(struct sock *sk, int valbool); #ifdef CONFIG_COMPAT - int (*compat_setsockopt)(struct sock *sk, - int level, - int optname, char __user *optval, - unsigned int optlen); - int (*compat_getsockopt)(struct sock *sk, - int level, - int optname, char __user *optval, - int __user *option); int (*compat_ioctl)(struct sock *sk, unsigned int cmd, unsigned long arg); #endif diff --git a/include/net/tcp.h b/include/net/tcp.h index d62e24533518a7..9f7f7c0c110451 100644 --- a/include/net/tcp.h +++ b/include/net/tcp.h @@ -401,10 +401,6 @@ int tcp_getsockopt(struct sock *sk, int level, int optname, char __user *optval, int __user *optlen); int tcp_setsockopt(struct sock *sk, int level, int optname, char __user *optval, unsigned int optlen); -int compat_tcp_getsockopt(struct sock *sk, int level, int optname, - char __user *optval, int __user *optlen); -int compat_tcp_setsockopt(struct sock *sk, int level, int optname, - char __user *optval, unsigned int optlen); void tcp_set_keepalive(struct sock *sk, int val); void tcp_syn_ack_timeout(const struct request_sock *req); int tcp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, int nonblock, diff --git a/net/core/sock.c b/net/core/sock.c index 018404d1762682..48655d5c4cf37a 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -3199,11 +3199,6 @@ int sock_common_getsockopt(struct socket *sock, int level, int optname, { struct sock *sk = sock->sk; -#ifdef CONFIG_COMPAT - if (in_compat_syscal() && sk->sk_prot->compat_getsockopt) - return sk->sk_prot->compat_getsockopt(sk, level, optname, - optval, optlen); -#endif return sk->sk_prot->getsockopt(sk, level, optname, optval, optlen); } EXPORT_SYMBOL(sock_common_getsockopt); @@ -3231,11 +3226,6 @@ int sock_common_setsockopt(struct socket *sock, int level, int optname, { struct sock *sk = sock->sk; -#ifdef CONFIG_COMPAT - if (in_compat_syscall() && sk->sk_prot->compat_setsockopt) - return sk->sk_prot->compat_setsockopt(sk, level, optname, - optval, optlen); -#endif return sk->sk_prot->setsockopt(sk, level, optname, optval, optlen); } EXPORT_SYMBOL(sock_common_setsockopt); diff --git a/net/dccp/dccp.h b/net/dccp/dccp.h index 7dce4f6c70252d..434eea91b7679d 100644 --- a/net/dccp/dccp.h +++ b/net/dccp/dccp.h @@ -296,12 +296,6 @@ int dccp_getsockopt(struct sock *sk, int level, int optname, char __user *optval, int __user *optlen); int dccp_setsockopt(struct sock *sk, int level, int optname, char __user *optval, unsigned int optlen); -#ifdef CONFIG_COMPAT -int compat_dccp_getsockopt(struct sock *sk, int level, int optname, - char __user *optval, int __user *optlen); -int compat_dccp_setsockopt(struct sock *sk, int level, int optname, - char __user *optval, unsigned int optlen); -#endif int dccp_ioctl(struct sock *sk, int cmd, unsigned long arg); int dccp_sendmsg(struct sock *sk, struct msghdr *msg, size_t size); int dccp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, int nonblock, diff --git a/net/dccp/ipv4.c b/net/dccp/ipv4.c index b91373eb1c7974..9c28c825112533 100644 --- a/net/dccp/ipv4.c +++ b/net/dccp/ipv4.c @@ -959,10 +959,6 @@ static struct proto dccp_v4_prot = { .rsk_prot = &dccp_request_sock_ops, .twsk_prot = &dccp_timewait_sock_ops, .h.hashinfo = &dccp_hashinfo, -#ifdef CONFIG_COMPAT - .compat_setsockopt = compat_dccp_setsockopt, - .compat_getsockopt = compat_dccp_getsockopt, -#endif }; static const struct net_protocol dccp_v4_protocol = { diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c index b50f85a72cd5fc..ef4ab28cfde0e3 100644 --- a/net/dccp/ipv6.c +++ b/net/dccp/ipv6.c @@ -970,10 +970,6 @@ static const struct inet_connection_sock_af_ops dccp_ipv6_af_ops = { .getsockopt = ipv6_getsockopt, .addr2sockaddr = inet6_csk_addr2sockaddr, .sockaddr_len = sizeof(struct sockaddr_in6), -#ifdef CONFIG_COMPAT - .compat_setsockopt = compat_ipv6_setsockopt, - .compat_getsockopt = compat_ipv6_getsockopt, -#endif }; /* @@ -990,10 +986,6 @@ static const struct inet_connection_sock_af_ops dccp_ipv6_mapped = { .getsockopt = ipv6_getsockopt, .addr2sockaddr = inet6_csk_addr2sockaddr, .sockaddr_len = sizeof(struct sockaddr_in6), -#ifdef CONFIG_COMPAT - .compat_setsockopt = compat_ipv6_setsockopt, - .compat_getsockopt = compat_ipv6_getsockopt, -#endif }; /* NOTE: A lot of things set to zero explicitly by call to @@ -1049,10 +1041,6 @@ static struct proto dccp_v6_prot = { .rsk_prot = &dccp6_request_sock_ops, .twsk_prot = &dccp6_timewait_sock_ops, .h.hashinfo = &dccp_hashinfo, -#ifdef CONFIG_COMPAT - .compat_setsockopt = compat_dccp_setsockopt, - .compat_getsockopt = compat_dccp_getsockopt, -#endif }; static const struct inet6_protocol dccp_v6_protocol = { diff --git a/net/dccp/proto.c b/net/dccp/proto.c index c13b6609474b65..fd92d3fe321f08 100644 --- a/net/dccp/proto.c +++ b/net/dccp/proto.c @@ -575,19 +575,6 @@ int dccp_setsockopt(struct sock *sk, int level, int optname, EXPORT_SYMBOL_GPL(dccp_setsockopt); -#ifdef CONFIG_COMPAT -int compat_dccp_setsockopt(struct sock *sk, int level, int optname, - char __user *optval, unsigned int optlen) -{ - if (level != SOL_DCCP) - return inet_csk_compat_setsockopt(sk, level, optname, - optval, optlen); - return do_dccp_setsockopt(sk, level, optname, optval, optlen); -} - -EXPORT_SYMBOL_GPL(compat_dccp_setsockopt); -#endif - static int dccp_getsockopt_service(struct sock *sk, int len, __be32 __user *optval, int __user *optlen) @@ -696,19 +683,6 @@ int dccp_getsockopt(struct sock *sk, int level, int optname, EXPORT_SYMBOL_GPL(dccp_getsockopt); -#ifdef CONFIG_COMPAT -int compat_dccp_getsockopt(struct sock *sk, int level, int optname, - char __user *optval, int __user *optlen) -{ - if (level != SOL_DCCP) - return inet_csk_compat_getsockopt(sk, level, optname, - optval, optlen); - return do_dccp_getsockopt(sk, level, optname, optval, optlen); -} - -EXPORT_SYMBOL_GPL(compat_dccp_getsockopt); -#endif - static int dccp_msghdr_parse(struct msghdr *msg, struct sk_buff *skb) { struct cmsghdr *cmsg; diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c index 22b0e7336360f3..d1a3913eebe05f 100644 --- a/net/ipv4/inet_connection_sock.c +++ b/net/ipv4/inet_connection_sock.c @@ -1057,34 +1057,6 @@ void inet_csk_addr2sockaddr(struct sock *sk, struct sockaddr *uaddr) } EXPORT_SYMBOL_GPL(inet_csk_addr2sockaddr); -#ifdef CONFIG_COMPAT -int inet_csk_compat_getsockopt(struct sock *sk, int level, int optname, - char __user *optval, int __user *optlen) -{ - const struct inet_connection_sock *icsk = inet_csk(sk); - - if (icsk->icsk_af_ops->compat_getsockopt) - return icsk->icsk_af_ops->compat_getsockopt(sk, level, optname, - optval, optlen); - return icsk->icsk_af_ops->getsockopt(sk, level, optname, - optval, optlen); -} -EXPORT_SYMBOL_GPL(inet_csk_compat_getsockopt); - -int inet_csk_compat_setsockopt(struct sock *sk, int level, int optname, - char __user *optval, unsigned int optlen) -{ - const struct inet_connection_sock *icsk = inet_csk(sk); - - if (icsk->icsk_af_ops->compat_setsockopt) - return icsk->icsk_af_ops->compat_setsockopt(sk, level, optname, - optval, optlen); - return icsk->icsk_af_ops->setsockopt(sk, level, optname, - optval, optlen); -} -EXPORT_SYMBOL_GPL(inet_csk_compat_setsockopt); -#endif - static struct dst_entry *inet_csk_rebuild_route(struct sock *sk, struct flowi *fl) { const struct inet_sock *inet = inet_sk(sk); diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index 254b6a4cc95bd0..58ede3d62b2e2c 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -3337,18 +3337,6 @@ int tcp_setsockopt(struct sock *sk, int level, int optname, char __user *optval, } EXPORT_SYMBOL(tcp_setsockopt); -#ifdef CONFIG_COMPAT -int compat_tcp_setsockopt(struct sock *sk, int level, int optname, - char __user *optval, unsigned int optlen) -{ - if (level != SOL_TCP) - return inet_csk_compat_setsockopt(sk, level, optname, - optval, optlen); - return do_tcp_setsockopt(sk, level, optname, optval, optlen); -} -EXPORT_SYMBOL(compat_tcp_setsockopt); -#endif - static void tcp_get_info_chrono_stats(const struct tcp_sock *tp, struct tcp_info *info) { @@ -3896,18 +3884,6 @@ int tcp_getsockopt(struct sock *sk, int level, int optname, char __user *optval, } EXPORT_SYMBOL(tcp_getsockopt); -#ifdef CONFIG_COMPAT -int compat_tcp_getsockopt(struct sock *sk, int level, int optname, - char __user *optval, int __user *optlen) -{ - if (level != SOL_TCP) - return inet_csk_compat_getsockopt(sk, level, optname, - optval, optlen); - return do_tcp_getsockopt(sk, level, optname, optval, optlen); -} -EXPORT_SYMBOL(compat_tcp_getsockopt); -#endif - #ifdef CONFIG_TCP_MD5SIG static DEFINE_PER_CPU(struct tcp_md5sig_pool, tcp_md5sig_pool); static DEFINE_MUTEX(tcp_md5sig_mutex); diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c index e5b7ef9a288769..cd81b6e04efbfa 100644 --- a/net/ipv4/tcp_ipv4.c +++ b/net/ipv4/tcp_ipv4.c @@ -2769,10 +2769,6 @@ struct proto tcp_prot = { .rsk_prot = &tcp_request_sock_ops, .h.hashinfo = &tcp_hashinfo, .no_autobind = true, -#ifdef CONFIG_COMPAT - .compat_setsockopt = compat_tcp_setsockopt, - .compat_getsockopt = compat_tcp_getsockopt, -#endif .diag_destroy = tcp_abort, }; EXPORT_SYMBOL(tcp_prot); diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c index 1ea0cd12beaee9..add8f791229945 100644 --- a/net/ipv6/ipv6_sockglue.c +++ b/net/ipv6/ipv6_sockglue.c @@ -136,13 +136,42 @@ static bool setsockopt_needs_rtnl(int optname) return false; } +static int copy_group_source_from_user(struct group_source_req *greqs, + void __user *optval, int optlen) +{ + if (in_compat_syscall()) { + struct compat_group_source_req gr32; + + if (optlen < sizeof(gr32)) + return -EINVAL; + if (copy_from_user(&gr32, optval, sizeof(gr32))) + return -EFAULT; + greqs->gsr_interface = gr32.gsr_interface; + greqs->gsr_group = gr32.gsr_group; + greqs->gsr_source = gr32.gsr_source; + } else { + if (optlen < sizeof(*greqs)) + return -EINVAL; + if (copy_from_user(greqs, optval, sizeof(*greqs))) + return -EFAULT; + } + + return 0; +} + static int do_ipv6_mcast_group_source(struct sock *sk, int optname, - struct group_source_req *greqs) + void __user *optval, int optlen) { + struct group_source_req greqs; int omode, add; + int ret; + + ret = copy_group_source_from_user(&greqs, optval, optlen); + if (ret) + return ret; - if (greqs->gsr_group.ss_family != AF_INET6 || - greqs->gsr_source.ss_family != AF_INET6) + if (greqs.gsr_group.ss_family != AF_INET6 || + greqs.gsr_source.ss_family != AF_INET6) return -EADDRNOTAVAIL; if (optname == MCAST_BLOCK_SOURCE) { @@ -155,8 +184,8 @@ static int do_ipv6_mcast_group_source(struct sock *sk, int optname, struct sockaddr_in6 *psin6; int retv; - psin6 = (struct sockaddr_in6 *)&greqs->gsr_group; - retv = ipv6_sock_mc_join_ssm(sk, greqs->gsr_interface, + psin6 = (struct sockaddr_in6 *)&greqs.gsr_group; + retv = ipv6_sock_mc_join_ssm(sk, greqs.gsr_interface, &psin6->sin6_addr, MCAST_INCLUDE); /* prior join w/ different source is ok */ @@ -168,7 +197,7 @@ static int do_ipv6_mcast_group_source(struct sock *sk, int optname, omode = MCAST_INCLUDE; add = 0; } - return ip6_mc_source(add, omode, sk, greqs); + return ip6_mc_source(add, omode, sk, &greqs); } static int ipv6_set_mcast_msfilter(struct sock *sk, void __user *optval, @@ -202,7 +231,6 @@ static int ipv6_set_mcast_msfilter(struct sock *sk, void __user *optval, return ret; } -#ifdef CONFIG_COMPAT static int compat_ipv6_set_mcast_msfilter(struct sock *sk, void __user *optval, int optlen) { @@ -236,21 +264,16 @@ static int compat_ipv6_set_mcast_msfilter(struct sock *sk, void __user *optval, if (offsetof(struct compat_group_filter, gf_slist[n]) > optlen) goto out_free_p; - rtnl_lock(); - lock_sock(sk); ret = ip6_mc_msfilter(sk, &(struct group_filter){ .gf_interface = gf32->gf_interface, .gf_group = gf32->gf_group, .gf_fmode = gf32->gf_fmode, .gf_numsrc = gf32->gf_numsrc}, gf32->gf_slist); - release_sock(sk); - rtnl_unlock(); out_free_p: kfree(p); return ret; } -#endif static int ipv6_mcast_join_leave(struct sock *sk, int optname, void __user *optval, int optlen) @@ -272,13 +295,11 @@ static int ipv6_mcast_join_leave(struct sock *sk, int optname, return ipv6_sock_mc_drop(sk, greq.gr_interface, &psin6->sin6_addr); } -#ifdef CONFIG_COMPAT static int compat_ipv6_mcast_join_leave(struct sock *sk, int optname, void __user *optval, int optlen) { struct compat_group_req gr32; struct sockaddr_in6 *psin6; - int err; if (optlen < sizeof(gr32)) return -EINVAL; @@ -287,20 +308,12 @@ static int compat_ipv6_mcast_join_leave(struct sock *sk, int optname, if (gr32.gr_group.ss_family != AF_INET6) return -EADDRNOTAVAIL; - rtnl_lock(); - lock_sock(sk); psin6 = (struct sockaddr_in6 *)&gr32.gr_group; if (optname == MCAST_JOIN_GROUP) - err = ipv6_sock_mc_join(sk, gr32.gr_interface, + return ipv6_sock_mc_join(sk, gr32.gr_interface, &psin6->sin6_addr); - else - err = ipv6_sock_mc_drop(sk, gr32.gr_interface, - &psin6->sin6_addr); - release_sock(sk); - rtnl_unlock(); - return err; + return ipv6_sock_mc_drop(sk, gr32.gr_interface, &psin6->sin6_addr); } -#endif static int do_ipv6_setsockopt(struct sock *sk, int level, int optname, char __user *optval, unsigned int optlen) @@ -853,26 +866,25 @@ static int do_ipv6_setsockopt(struct sock *sk, int level, int optname, case MCAST_JOIN_GROUP: case MCAST_LEAVE_GROUP: - retv = ipv6_mcast_join_leave(sk, optname, optval, optlen); + if (in_compat_syscall()) + retv = compat_ipv6_mcast_join_leave(sk, optname, optval, + optlen); + else + retv = ipv6_mcast_join_leave(sk, optname, optval, + optlen); break; case MCAST_JOIN_SOURCE_GROUP: case MCAST_LEAVE_SOURCE_GROUP: case MCAST_BLOCK_SOURCE: case MCAST_UNBLOCK_SOURCE: - { - struct group_source_req greqs; - - if (optlen < sizeof(struct group_source_req)) - goto e_inval; - if (copy_from_user(&greqs, optval, sizeof(greqs))) { - retv = -EFAULT; - break; - } - retv = do_ipv6_mcast_group_source(sk, optname, &greqs); + retv = do_ipv6_mcast_group_source(sk, optname, optval, optlen); break; - } case MCAST_MSFILTER: - retv = ipv6_set_mcast_msfilter(sk, optval, optlen); + if (in_compat_syscall()) + retv = compat_ipv6_set_mcast_msfilter(sk, optval, + optlen); + else + retv = ipv6_set_mcast_msfilter(sk, optval, optlen); break; case IPV6_ROUTER_ALERT: if (optlen < sizeof(int)) @@ -989,64 +1001,6 @@ int ipv6_setsockopt(struct sock *sk, int level, int optname, } EXPORT_SYMBOL(ipv6_setsockopt); -#ifdef CONFIG_COMPAT -int compat_ipv6_setsockopt(struct sock *sk, int level, int optname, - char __user *optval, unsigned int optlen) -{ - int err; - - if (level == SOL_IP && sk->sk_type != SOCK_RAW) - return udp_prot.setsockopt(sk, level, optname, optval, optlen); - - if (level != SOL_IPV6) - return -ENOPROTOOPT; - - switch (optname) { - case MCAST_JOIN_GROUP: - case MCAST_LEAVE_GROUP: - return compat_ipv6_mcast_join_leave(sk, optname, optval, - optlen); - case MCAST_JOIN_SOURCE_GROUP: - case MCAST_LEAVE_SOURCE_GROUP: - case MCAST_BLOCK_SOURCE: - case MCAST_UNBLOCK_SOURCE: - { - struct compat_group_source_req __user *gsr32 = (void __user *)optval; - struct group_source_req greqs; - - if (optlen < sizeof(struct compat_group_source_req)) - return -EINVAL; - - if (get_user(greqs.gsr_interface, &gsr32->gsr_interface) || - copy_from_user(&greqs.gsr_group, &gsr32->gsr_group, - sizeof(greqs.gsr_group)) || - copy_from_user(&greqs.gsr_source, &gsr32->gsr_source, - sizeof(greqs.gsr_source))) - return -EFAULT; - - rtnl_lock(); - lock_sock(sk); - err = do_ipv6_mcast_group_source(sk, optname, &greqs); - release_sock(sk); - rtnl_unlock(); - return err; - } - case MCAST_MSFILTER: - return compat_ipv6_set_mcast_msfilter(sk, optval, optlen); - } - - err = do_ipv6_setsockopt(sk, level, optname, optval, optlen); -#ifdef CONFIG_NETFILTER - /* we need to exclude all possible ENOPROTOOPTs except default case */ - if (err == -ENOPROTOOPT && optname != IPV6_IPSEC_POLICY && - optname != IPV6_XFRM_POLICY) - err = nf_setsockopt(sk, PF_INET6, optname, optval, optlen); -#endif - return err; -} -EXPORT_SYMBOL(compat_ipv6_setsockopt); -#endif - static int ipv6_getsockopt_sticky(struct sock *sk, struct ipv6_txoptions *opt, int optname, char __user *optval, int len) { @@ -1110,7 +1064,6 @@ static int ipv6_get_msfilter(struct sock *sk, void __user *optval, return err; } -#ifdef CONFIG_COMPAT static int compat_ipv6_get_msfilter(struct sock *sk, void __user *optval, int __user *optlen) { @@ -1150,7 +1103,6 @@ static int compat_ipv6_get_msfilter(struct sock *sk, void __user *optval, return -EFAULT; return 0; } -#endif static int do_ipv6_getsockopt(struct sock *sk, int level, int optname, char __user *optval, int __user *optlen, unsigned int flags) @@ -1175,6 +1127,8 @@ static int do_ipv6_getsockopt(struct sock *sk, int level, int optname, val = sk->sk_family; break; case MCAST_MSFILTER: + if (in_compat_syscall()) + return compat_ipv6_get_msfilter(sk, optval, optlen); return ipv6_get_msfilter(sk, optval, optlen, len); case IPV6_2292PKTOPTIONS: { @@ -1523,38 +1477,3 @@ int ipv6_getsockopt(struct sock *sk, int level, int optname, return err; } EXPORT_SYMBOL(ipv6_getsockopt); - -#ifdef CONFIG_COMPAT -int compat_ipv6_getsockopt(struct sock *sk, int level, int optname, - char __user *optval, int __user *optlen) -{ - int err; - - if (level == SOL_IP && sk->sk_type != SOCK_RAW) - return udp_prot.getsockopt(sk, level, optname, optval, optlen); - - if (level != SOL_IPV6) - return -ENOPROTOOPT; - - if (optname == MCAST_MSFILTER) - return compat_ipv6_get_msfilter(sk, optval, optlen); - - err = do_ipv6_getsockopt(sk, level, optname, optval, optlen, - MSG_CMSG_COMPAT); -#ifdef CONFIG_NETFILTER - /* we need to exclude all possible ENOPROTOOPTs except default case */ - if (err == -ENOPROTOOPT && optname != IPV6_2292PKTOPTIONS) { - int len; - - if (get_user(len, optlen)) - return -EFAULT; - - err = nf_getsockopt(sk, PF_INET6, optname, optval, &len); - if (err >= 0) - err = put_user(len, optlen); - } -#endif - return err; -} -EXPORT_SYMBOL(compat_ipv6_getsockopt); -#endif diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c index e23c6b46175870..594e01ad670aa6 100644 --- a/net/ipv6/raw.c +++ b/net/ipv6/raw.c @@ -1084,30 +1084,6 @@ static int rawv6_setsockopt(struct sock *sk, int level, int optname, return do_rawv6_setsockopt(sk, level, optname, optval, optlen); } -#ifdef CONFIG_COMPAT -static int compat_rawv6_setsockopt(struct sock *sk, int level, int optname, - char __user *optval, unsigned int optlen) -{ - switch (level) { - case SOL_RAW: - break; - case SOL_ICMPV6: - if (inet_sk(sk)->inet_num != IPPROTO_ICMPV6) - return -EOPNOTSUPP; - return rawv6_seticmpfilter(sk, level, optname, optval, optlen); - case SOL_IPV6: - if (optname == IPV6_CHECKSUM || - optname == IPV6_HDRINCL) - break; - fallthrough; - default: - return compat_ipv6_setsockopt(sk, level, optname, - optval, optlen); - } - return do_rawv6_setsockopt(sk, level, optname, optval, optlen); -} -#endif - static int do_rawv6_getsockopt(struct sock *sk, int level, int optname, char __user *optval, int __user *optlen) { @@ -1169,30 +1145,6 @@ static int rawv6_getsockopt(struct sock *sk, int level, int optname, return do_rawv6_getsockopt(sk, level, optname, optval, optlen); } -#ifdef CONFIG_COMPAT -static int compat_rawv6_getsockopt(struct sock *sk, int level, int optname, - char __user *optval, int __user *optlen) -{ - switch (level) { - case SOL_RAW: - break; - case SOL_ICMPV6: - if (inet_sk(sk)->inet_num != IPPROTO_ICMPV6) - return -EOPNOTSUPP; - return rawv6_geticmpfilter(sk, level, optname, optval, optlen); - case SOL_IPV6: - if (optname == IPV6_CHECKSUM || - optname == IPV6_HDRINCL) - break; - fallthrough; - default: - return compat_ipv6_getsockopt(sk, level, optname, - optval, optlen); - } - return do_rawv6_getsockopt(sk, level, optname, optval, optlen); -} -#endif - static int rawv6_ioctl(struct sock *sk, int cmd, unsigned long arg) { switch (cmd) { @@ -1297,8 +1249,6 @@ struct proto rawv6_prot = { .usersize = sizeof_field(struct raw6_sock, filter), .h.raw_hash = &raw_v6_hashinfo, #ifdef CONFIG_COMPAT - .compat_setsockopt = compat_rawv6_setsockopt, - .compat_getsockopt = compat_rawv6_getsockopt, .compat_ioctl = compat_rawv6_ioctl, #endif .diag_destroy = raw_abort, diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c index 4502db706f7534..c34b7834fd84a8 100644 --- a/net/ipv6/tcp_ipv6.c +++ b/net/ipv6/tcp_ipv6.c @@ -1831,10 +1831,6 @@ const struct inet_connection_sock_af_ops ipv6_specific = { .getsockopt = ipv6_getsockopt, .addr2sockaddr = inet6_csk_addr2sockaddr, .sockaddr_len = sizeof(struct sockaddr_in6), -#ifdef CONFIG_COMPAT - .compat_setsockopt = compat_ipv6_setsockopt, - .compat_getsockopt = compat_ipv6_getsockopt, -#endif .mtu_reduced = tcp_v6_mtu_reduced, }; @@ -1861,10 +1857,6 @@ static const struct inet_connection_sock_af_ops ipv6_mapped = { .getsockopt = ipv6_getsockopt, .addr2sockaddr = inet6_csk_addr2sockaddr, .sockaddr_len = sizeof(struct sockaddr_in6), -#ifdef CONFIG_COMPAT - .compat_setsockopt = compat_ipv6_setsockopt, - .compat_getsockopt = compat_ipv6_getsockopt, -#endif .mtu_reduced = tcp_v4_mtu_reduced, }; @@ -2122,10 +2114,6 @@ struct proto tcpv6_prot = { .rsk_prot = &tcp6_request_sock_ops, .h.hashinfo = &tcp_hashinfo, .no_autobind = true, -#ifdef CONFIG_COMPAT - .compat_setsockopt = compat_tcp_setsockopt, - .compat_getsockopt = compat_tcp_getsockopt, -#endif .diag_destroy = tcp_abort, }; EXPORT_SYMBOL_GPL(tcpv6_prot); diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c index 38c0d9350c6b8f..5aff0856a05b44 100644 --- a/net/ipv6/udp.c +++ b/net/ipv6/udp.c @@ -1570,17 +1570,6 @@ int udpv6_setsockopt(struct sock *sk, int level, int optname, return ipv6_setsockopt(sk, level, optname, optval, optlen); } -#ifdef CONFIG_COMPAT -int compat_udpv6_setsockopt(struct sock *sk, int level, int optname, - char __user *optval, unsigned int optlen) -{ - if (level == SOL_UDP || level == SOL_UDPLITE) - return udp_lib_setsockopt(sk, level, optname, optval, optlen, - udp_v6_push_pending_frames); - return compat_ipv6_setsockopt(sk, level, optname, optval, optlen); -} -#endif - int udpv6_getsockopt(struct sock *sk, int level, int optname, char __user *optval, int __user *optlen) { @@ -1589,16 +1578,6 @@ int udpv6_getsockopt(struct sock *sk, int level, int optname, return ipv6_getsockopt(sk, level, optname, optval, optlen); } -#ifdef CONFIG_COMPAT -int compat_udpv6_getsockopt(struct sock *sk, int level, int optname, - char __user *optval, int __user *optlen) -{ - if (level == SOL_UDP || level == SOL_UDPLITE) - return udp_lib_getsockopt(sk, level, optname, optval, optlen); - return compat_ipv6_getsockopt(sk, level, optname, optval, optlen); -} -#endif - /* thinking of making this const? Don't. * early_demux can change based on sysctl. */ @@ -1681,10 +1660,6 @@ struct proto udpv6_prot = { .sysctl_rmem_offset = offsetof(struct net, ipv4.sysctl_udp_rmem_min), .obj_size = sizeof(struct udp6_sock), .h.udp_table = &udp_table, -#ifdef CONFIG_COMPAT - .compat_setsockopt = compat_udpv6_setsockopt, - .compat_getsockopt = compat_udpv6_getsockopt, -#endif .diag_destroy = udp_abort, }; diff --git a/net/ipv6/udp_impl.h b/net/ipv6/udp_impl.h index 20e324b6f3584e..30dfb6f1b7622a 100644 --- a/net/ipv6/udp_impl.h +++ b/net/ipv6/udp_impl.h @@ -19,12 +19,6 @@ int udpv6_getsockopt(struct sock *sk, int level, int optname, char __user *optval, int __user *optlen); int udpv6_setsockopt(struct sock *sk, int level, int optname, char __user *optval, unsigned int optlen); -#ifdef CONFIG_COMPAT -int compat_udpv6_setsockopt(struct sock *sk, int level, int optname, - char __user *optval, unsigned int optlen); -int compat_udpv6_getsockopt(struct sock *sk, int level, int optname, - char __user *optval, int __user *optlen); -#endif int udpv6_sendmsg(struct sock *sk, struct msghdr *msg, size_t len); int udpv6_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, int noblock, int flags, int *addr_len); diff --git a/net/ipv6/udplite.c b/net/ipv6/udplite.c index bf7a7acd39b1d5..fbb700d3f437ee 100644 --- a/net/ipv6/udplite.c +++ b/net/ipv6/udplite.c @@ -52,10 +52,6 @@ struct proto udplitev6_prot = { .sysctl_mem = sysctl_udp_mem, .obj_size = sizeof(struct udp6_sock), .h.udp_table = &udplite_table, -#ifdef CONFIG_COMPAT - .compat_setsockopt = compat_udpv6_setsockopt, - .compat_getsockopt = compat_udpv6_getsockopt, -#endif }; static struct inet_protosw udplite6_protosw = { diff --git a/net/l2tp/l2tp_ip6.c b/net/l2tp/l2tp_ip6.c index 2cdc0b7a7a43c3..4799bec87b332f 100644 --- a/net/l2tp/l2tp_ip6.c +++ b/net/l2tp/l2tp_ip6.c @@ -745,10 +745,6 @@ static struct proto l2tp_ip6_prot = { .hash = l2tp_ip6_hash, .unhash = l2tp_ip6_unhash, .obj_size = sizeof(struct l2tp_ip6_sock), -#ifdef CONFIG_COMPAT - .compat_setsockopt = compat_ipv6_setsockopt, - .compat_getsockopt = compat_ipv6_getsockopt, -#endif }; static const struct proto_ops l2tp_ip6_ops = { diff --git a/net/sctp/ipv6.c b/net/sctp/ipv6.c index ebda31b7747d08..aea2a982984d02 100644 --- a/net/sctp/ipv6.c +++ b/net/sctp/ipv6.c @@ -1087,10 +1087,6 @@ static struct sctp_af sctp_af_inet6 = { .net_header_len = sizeof(struct ipv6hdr), .sockaddr_len = sizeof(struct sockaddr_in6), .ip_options_len = sctp_v6_ip_options_len, -#ifdef CONFIG_COMPAT - .compat_setsockopt = compat_ipv6_setsockopt, - .compat_getsockopt = compat_ipv6_getsockopt, -#endif }; static struct sctp_pf sctp_pf_inet6 = {

[21/22] net/ipv6: remove compat_ipv6_{get,set}sockopt

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