From dfde1d7dee9bfd095a4f16c9e0579a10f4092e81 Mon Sep 17 00:00:00 2001 From: Dmitry Yakunin Date: Sat, 20 Jun 2020 18:30:50 +0300 Subject: sock: Move sock_valbool_flag to header This is preparation for usage in bpf_setsockopt. Signed-off-by: Dmitry Yakunin Signed-off-by: Alexei Starovoitov Acked-by: Martin KaFai Lau Link: https://lore.kernel.org/bpf/20200620153052.9439-1-zeil@yandex-team.ru --- net/core/sock.c | 9 --------- 1 file changed, 9 deletions(-) (limited to 'net/core/sock.c') diff --git a/net/core/sock.c b/net/core/sock.c index 6c4acf1f0220..5ba4753bc04d 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -695,15 +695,6 @@ out: return ret; } -static inline void sock_valbool_flag(struct sock *sk, enum sock_flags bit, - int valbool) -{ - if (valbool) - sock_set_flag(sk, bit); - else - sock_reset_flag(sk, bit); -} - bool sk_mc_loop(struct sock *sk) { if (dev_recursion_level()) -- cgit v1.2.3 From 3f935c75eb52dd968351dba824adf466fb9c9429 Mon Sep 17 00:00:00 2001 From: Paolo Abeni Date: Thu, 9 Jul 2020 15:12:39 +0200 Subject: inet_diag: support for wider protocol numbers After commit bf9765145b85 ("sock: Make sk_protocol a 16-bit value") the current size of 'sdiag_protocol' is not sufficient to represent the possible protocol values. This change introduces a new inet diag request attribute to let user space specify the relevant protocol number using u32 values. The attribute is parsed by inet diag core on get/dump command and the extended protocol value, if available, is preferred to 'sdiag_protocol' to lookup the diag handler. The parse attributed are exposed to all the diag handlers via the cb->data. Note that inet_diag_dump_one_icsk() is left unmodified, as it will not be used by protocol using the extended attribute. Suggested-by: David S. Miller Co-developed-by: Christoph Paasch Signed-off-by: Christoph Paasch Acked-by: Mat Martineau Signed-off-by: Paolo Abeni Signed-off-by: David S. Miller --- include/uapi/linux/inet_diag.h | 1 + net/core/sock.c | 1 + net/ipv4/inet_diag.c | 65 +++++++++++++++++++++++++++++++----------- 3 files changed, 50 insertions(+), 17 deletions(-) (limited to 'net/core/sock.c') diff --git a/include/uapi/linux/inet_diag.h b/include/uapi/linux/inet_diag.h index e6f183ee8417..5ba122c1949a 100644 --- a/include/uapi/linux/inet_diag.h +++ b/include/uapi/linux/inet_diag.h @@ -65,6 +65,7 @@ enum { INET_DIAG_REQ_NONE, INET_DIAG_REQ_BYTECODE, INET_DIAG_REQ_SK_BPF_STORAGES, + INET_DIAG_REQ_PROTOCOL, __INET_DIAG_REQ_MAX, }; diff --git a/net/core/sock.c b/net/core/sock.c index f5b5fdd61c88..de26fe4ea19f 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -3566,6 +3566,7 @@ int sock_load_diag_module(int family, int protocol) #ifdef CONFIG_INET if (family == AF_INET && protocol != IPPROTO_RAW && + protocol < MAX_INET_PROTOS && !rcu_access_pointer(inet_protos[protocol])) return -ENOENT; #endif diff --git a/net/ipv4/inet_diag.c b/net/ipv4/inet_diag.c index 125f4f8a36b4..4a98dd736270 100644 --- a/net/ipv4/inet_diag.c +++ b/net/ipv4/inet_diag.c @@ -52,6 +52,11 @@ static DEFINE_MUTEX(inet_diag_table_mutex); static const struct inet_diag_handler *inet_diag_lock_handler(int proto) { + if (proto < 0 || proto >= IPPROTO_MAX) { + mutex_lock(&inet_diag_table_mutex); + return ERR_PTR(-ENOENT); + } + if (!inet_diag_table[proto]) sock_load_diag_module(AF_INET, proto); @@ -181,6 +186,28 @@ errout: } EXPORT_SYMBOL_GPL(inet_diag_msg_attrs_fill); +static void inet_diag_parse_attrs(const struct nlmsghdr *nlh, int hdrlen, + struct nlattr **req_nlas) +{ + struct nlattr *nla; + int remaining; + + nlmsg_for_each_attr(nla, nlh, hdrlen, remaining) { + int type = nla_type(nla); + + if (type < __INET_DIAG_REQ_MAX) + req_nlas[type] = nla; + } +} + +static int inet_diag_get_protocol(const struct inet_diag_req_v2 *req, + const struct inet_diag_dump_data *data) +{ + if (data->req_nlas[INET_DIAG_REQ_PROTOCOL]) + return nla_get_u32(data->req_nlas[INET_DIAG_REQ_PROTOCOL]); + return req->sdiag_protocol; +} + #define MAX_DUMP_ALLOC_SIZE (KMALLOC_MAX_SIZE - SKB_DATA_ALIGN(sizeof(struct skb_shared_info))) int inet_sk_diag_fill(struct sock *sk, struct inet_connection_sock *icsk, @@ -198,7 +225,7 @@ int inet_sk_diag_fill(struct sock *sk, struct inet_connection_sock *icsk, void *info = NULL; cb_data = cb->data; - handler = inet_diag_table[req->sdiag_protocol]; + handler = inet_diag_table[inet_diag_get_protocol(req, cb_data)]; BUG_ON(!handler); nlh = nlmsg_put(skb, NETLINK_CB(cb->skb).portid, cb->nlh->nlmsg_seq, @@ -539,20 +566,25 @@ EXPORT_SYMBOL_GPL(inet_diag_dump_one_icsk); static int inet_diag_cmd_exact(int cmd, struct sk_buff *in_skb, const struct nlmsghdr *nlh, + int hdrlen, const struct inet_diag_req_v2 *req) { const struct inet_diag_handler *handler; - int err; + struct inet_diag_dump_data dump_data; + int err, protocol; - handler = inet_diag_lock_handler(req->sdiag_protocol); + memset(&dump_data, 0, sizeof(dump_data)); + inet_diag_parse_attrs(nlh, hdrlen, dump_data.req_nlas); + protocol = inet_diag_get_protocol(req, &dump_data); + + handler = inet_diag_lock_handler(protocol); if (IS_ERR(handler)) { err = PTR_ERR(handler); } else if (cmd == SOCK_DIAG_BY_FAMILY) { - struct inet_diag_dump_data empty_dump_data = {}; struct netlink_callback cb = { .nlh = nlh, .skb = in_skb, - .data = &empty_dump_data, + .data = &dump_data, }; err = handler->dump_one(&cb, req); } else if (cmd == SOCK_DESTROY && handler->destroy) { @@ -1103,13 +1135,16 @@ EXPORT_SYMBOL_GPL(inet_diag_dump_icsk); static int __inet_diag_dump(struct sk_buff *skb, struct netlink_callback *cb, const struct inet_diag_req_v2 *r) { + struct inet_diag_dump_data *cb_data = cb->data; const struct inet_diag_handler *handler; u32 prev_min_dump_alloc; - int err = 0; + int protocol, err = 0; + + protocol = inet_diag_get_protocol(r, cb_data); again: prev_min_dump_alloc = cb->min_dump_alloc; - handler = inet_diag_lock_handler(r->sdiag_protocol); + handler = inet_diag_lock_handler(protocol); if (!IS_ERR(handler)) handler->dump(skb, cb, r); else @@ -1139,19 +1174,13 @@ static int __inet_diag_dump_start(struct netlink_callback *cb, int hdrlen) struct inet_diag_dump_data *cb_data; struct sk_buff *skb = cb->skb; struct nlattr *nla; - int rem, err; + int err; cb_data = kzalloc(sizeof(*cb_data), GFP_KERNEL); if (!cb_data) return -ENOMEM; - nla_for_each_attr(nla, nlmsg_attrdata(nlh, hdrlen), - nlmsg_attrlen(nlh, hdrlen), rem) { - int type = nla_type(nla); - - if (type < __INET_DIAG_REQ_MAX) - cb_data->req_nlas[type] = nla; - } + inet_diag_parse_attrs(nlh, hdrlen, cb_data->req_nlas); nla = cb_data->inet_diag_nla_bc; if (nla) { @@ -1237,7 +1266,8 @@ static int inet_diag_get_exact_compat(struct sk_buff *in_skb, req.idiag_states = rc->idiag_states; req.id = rc->id; - return inet_diag_cmd_exact(SOCK_DIAG_BY_FAMILY, in_skb, nlh, &req); + return inet_diag_cmd_exact(SOCK_DIAG_BY_FAMILY, in_skb, nlh, + sizeof(struct inet_diag_req), &req); } static int inet_diag_rcv_msg_compat(struct sk_buff *skb, struct nlmsghdr *nlh) @@ -1279,7 +1309,8 @@ static int inet_diag_handler_cmd(struct sk_buff *skb, struct nlmsghdr *h) return netlink_dump_start(net->diag_nlsk, skb, h, &c); } - return inet_diag_cmd_exact(h->nlmsg_type, skb, h, nlmsg_data(h)); + return inet_diag_cmd_exact(h->nlmsg_type, skb, h, hdrlen, + nlmsg_data(h)); } static -- cgit v1.2.3 From 4d295e54611509854a12c26f95a6f4430731d614 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Fri, 17 Jul 2020 08:23:13 +0200 Subject: net: simplify cBPF setsockopt compat handling Add a helper that copies either a native or compat bpf_fprog from userspace after verifying the length, and remove the compat setsockopt handlers that now aren't required. Signed-off-by: Christoph Hellwig Signed-off-by: David S. Miller --- include/linux/filter.h | 4 ++-- include/net/compat.h | 1 - net/compat.c | 45 +-------------------------------------------- net/core/filter.c | 23 +++++++++++++++++++++++ net/core/sock.c | 30 ++++++++++-------------------- net/packet/af_packet.c | 33 ++++----------------------------- 6 files changed, 40 insertions(+), 96 deletions(-) (limited to 'net/core/sock.c') diff --git a/include/linux/filter.h b/include/linux/filter.h index 0b0144752d78..4d049c8e1fbe 100644 --- a/include/linux/filter.h +++ b/include/linux/filter.h @@ -502,13 +502,11 @@ static inline bool insn_is_zext(const struct bpf_insn *insn) offsetof(TYPE, MEMBER); \ }) -#ifdef CONFIG_COMPAT /* A struct sock_filter is architecture independent. */ struct compat_sock_fprog { u16 len; compat_uptr_t filter; /* struct sock_filter * */ }; -#endif struct sock_fprog_kern { u16 len; @@ -1278,4 +1276,6 @@ struct bpf_sockopt_kern { s32 retval; }; +int copy_bpf_fprog_from_user(struct sock_fprog *dst, void __user *src, int len); + #endif /* __LINUX_FILTER_H__ */ diff --git a/include/net/compat.h b/include/net/compat.h index f241666117d8..745db0d605b6 100644 --- a/include/net/compat.h +++ b/include/net/compat.h @@ -61,7 +61,6 @@ int __get_compat_msghdr(struct msghdr *kmsg, struct compat_msghdr __user *umsg, compat_size_t *len); int get_compat_msghdr(struct msghdr *, struct compat_msghdr __user *, struct sockaddr __user **, struct iovec **); -struct sock_fprog __user *get_compat_bpf_fprog(char __user *optval); int put_cmsg_compat(struct msghdr*, int, int, int, void *); int cmsghdr_from_user_compat_to_kern(struct msghdr *, struct sock *, diff --git a/net/compat.c b/net/compat.c index 5e3041a2c37d..3e6c2c5ff260 100644 --- a/net/compat.c +++ b/net/compat.c @@ -335,49 +335,6 @@ void scm_detach_fds_compat(struct msghdr *kmsg, struct scm_cookie *scm) __scm_destroy(scm); } -/* allocate a 64-bit sock_fprog on the user stack for duration of syscall. */ -struct sock_fprog __user *get_compat_bpf_fprog(char __user *optval) -{ - struct compat_sock_fprog __user *fprog32 = (struct compat_sock_fprog __user *)optval; - struct sock_fprog __user *kfprog = compat_alloc_user_space(sizeof(struct sock_fprog)); - struct compat_sock_fprog f32; - struct sock_fprog f; - - if (copy_from_user(&f32, fprog32, sizeof(*fprog32))) - return NULL; - memset(&f, 0, sizeof(f)); - f.len = f32.len; - f.filter = compat_ptr(f32.filter); - if (copy_to_user(kfprog, &f, sizeof(struct sock_fprog))) - return NULL; - - return kfprog; -} -EXPORT_SYMBOL_GPL(get_compat_bpf_fprog); - -static int do_set_attach_filter(struct socket *sock, int level, int optname, - char __user *optval, unsigned int optlen) -{ - struct sock_fprog __user *kfprog; - - kfprog = get_compat_bpf_fprog(optval); - if (!kfprog) - return -EFAULT; - - return sock_setsockopt(sock, level, optname, (char __user *)kfprog, - sizeof(struct sock_fprog)); -} - -static int compat_sock_setsockopt(struct socket *sock, int level, int optname, - char __user *optval, unsigned int optlen) -{ - if (optname == SO_ATTACH_FILTER || - optname == SO_ATTACH_REUSEPORT_CBPF) - return do_set_attach_filter(sock, level, optname, - optval, optlen); - return sock_setsockopt(sock, level, optname, optval, optlen); -} - static int __compat_sys_setsockopt(int fd, int level, int optname, char __user *optval, unsigned int optlen) { @@ -396,7 +353,7 @@ static int __compat_sys_setsockopt(int fd, int level, int optname, } if (level == SOL_SOCKET) - err = compat_sock_setsockopt(sock, level, + err = sock_setsockopt(sock, level, optname, optval, optlen); else if (sock->ops->compat_setsockopt) err = sock->ops->compat_setsockopt(sock, level, diff --git a/net/core/filter.c b/net/core/filter.c index bdd2382e655d..2bf6624796d8 100644 --- a/net/core/filter.c +++ b/net/core/filter.c @@ -77,6 +77,29 @@ #include #include +int copy_bpf_fprog_from_user(struct sock_fprog *dst, void __user *src, int len) +{ + if (in_compat_syscall()) { + struct compat_sock_fprog f32; + + if (len != sizeof(f32)) + return -EINVAL; + if (copy_from_user(&f32, src, sizeof(f32))) + return -EFAULT; + memset(dst, 0, sizeof(*dst)); + dst->len = f32.len; + dst->filter = compat_ptr(f32.filter); + } else { + if (len != sizeof(*dst)) + return -EINVAL; + if (copy_from_user(dst, src, sizeof(*dst))) + return -EFAULT; + } + + return 0; +} +EXPORT_SYMBOL_GPL(copy_bpf_fprog_from_user); + /** * sk_filter_trim_cap - run a packet through a socket filter * @sk: sock associated with &sk_buff diff --git a/net/core/sock.c b/net/core/sock.c index 11d6f77dd562..e085df794825 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -1059,19 +1059,14 @@ set_sndbuf: ret = sock_set_timeout(&sk->sk_sndtimeo, optval, optlen, optname == SO_SNDTIMEO_OLD); break; - case SO_ATTACH_FILTER: - ret = -EINVAL; - if (optlen == sizeof(struct sock_fprog)) { - struct sock_fprog fprog; - - ret = -EFAULT; - if (copy_from_user(&fprog, optval, sizeof(fprog))) - break; + case SO_ATTACH_FILTER: { + struct sock_fprog fprog; + ret = copy_bpf_fprog_from_user(&fprog, optval, optlen); + if (!ret) ret = sk_attach_filter(&fprog, sk); - } break; - + } case SO_ATTACH_BPF: ret = -EINVAL; if (optlen == sizeof(u32)) { @@ -1085,19 +1080,14 @@ set_sndbuf: } break; - case SO_ATTACH_REUSEPORT_CBPF: - ret = -EINVAL; - if (optlen == sizeof(struct sock_fprog)) { - struct sock_fprog fprog; - - ret = -EFAULT; - if (copy_from_user(&fprog, optval, sizeof(fprog))) - break; + case SO_ATTACH_REUSEPORT_CBPF: { + struct sock_fprog fprog; + ret = copy_bpf_fprog_from_user(&fprog, optval, optlen); + if (!ret) ret = sk_reuseport_attach_filter(&fprog, sk); - } break; - + } case SO_ATTACH_REUSEPORT_EBPF: ret = -EINVAL; if (optlen == sizeof(u32)) { diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c index 781fee93b7d5..35aee9e98053 100644 --- a/net/packet/af_packet.c +++ b/net/packet/af_packet.c @@ -1545,10 +1545,10 @@ static int fanout_set_data_cbpf(struct packet_sock *po, char __user *data, if (sock_flag(&po->sk, SOCK_FILTER_LOCKED)) return -EPERM; - if (len != sizeof(fprog)) - return -EINVAL; - if (copy_from_user(&fprog, data, len)) - return -EFAULT; + + ret = copy_bpf_fprog_from_user(&fprog, data, len); + if (ret) + return ret; ret = bpf_prog_create_from_user(&new, &fprog, NULL, false); if (ret) @@ -4040,28 +4040,6 @@ static int packet_getsockopt(struct socket *sock, int level, int optname, return 0; } - -#ifdef CONFIG_COMPAT -static int compat_packet_setsockopt(struct socket *sock, int level, int optname, - char __user *optval, unsigned int optlen) -{ - struct packet_sock *po = pkt_sk(sock->sk); - - if (level != SOL_PACKET) - return -ENOPROTOOPT; - - if (optname == PACKET_FANOUT_DATA && - po->fanout && po->fanout->type == PACKET_FANOUT_CBPF) { - optval = (char __user *)get_compat_bpf_fprog(optval); - if (!optval) - return -EFAULT; - optlen = sizeof(struct sock_fprog); - } - - return packet_setsockopt(sock, level, optname, optval, optlen); -} -#endif - static int packet_notifier(struct notifier_block *this, unsigned long msg, void *ptr) { @@ -4549,9 +4527,6 @@ static const struct proto_ops packet_ops = { .shutdown = sock_no_shutdown, .setsockopt = packet_setsockopt, .getsockopt = packet_getsockopt, -#ifdef CONFIG_COMPAT - .compat_setsockopt = compat_packet_setsockopt, -#endif .sendmsg = packet_sendmsg, .recvmsg = packet_recvmsg, .mmap = packet_mmap, -- cgit v1.2.3 From 8c918ffbbad49454ed26c53eb1b90bf98bb5e394 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Fri, 17 Jul 2020 08:23:14 +0200 Subject: net: remove compat_sock_common_{get,set}sockopt Add the compat handling to sock_common_{get,set}sockopt instead, keyed of in_compat_syscall(). This allow to remove the now unused ->compat_{get,set}sockopt methods from struct proto_ops. Signed-off-by: Christoph Hellwig Acked-by: Matthieu Baerts Acked-by: Stefan Schmidt Signed-off-by: David S. Miller --- include/linux/net.h | 6 ------ include/net/sock.h | 4 ---- net/core/sock.c | 30 ++++++------------------------ net/dccp/ipv4.c | 4 ---- net/dccp/ipv6.c | 2 -- net/ieee802154/socket.c | 8 -------- net/ipv4/af_inet.c | 6 ------ net/ipv6/af_inet6.c | 4 ---- net/ipv6/ipv6_sockglue.c | 12 ++---------- net/ipv6/raw.c | 2 -- net/l2tp/l2tp_ip.c | 4 ---- net/l2tp/l2tp_ip6.c | 2 -- net/mptcp/protocol.c | 6 ------ net/phonet/socket.c | 8 -------- net/sctp/ipv6.c | 2 -- net/sctp/protocol.c | 4 ---- 16 files changed, 8 insertions(+), 96 deletions(-) (limited to 'net/core/sock.c') diff --git a/include/linux/net.h b/include/linux/net.h index 016a9c5faa34..858ff1d98154 100644 --- a/include/linux/net.h +++ b/include/linux/net.h @@ -165,12 +165,6 @@ struct proto_ops { int optname, char __user *optval, unsigned int optlen); int (*getsockopt)(struct socket *sock, int level, int optname, char __user *optval, int __user *optlen); -#ifdef CONFIG_COMPAT - int (*compat_setsockopt)(struct socket *sock, int level, - int optname, char __user *optval, unsigned int optlen); - int (*compat_getsockopt)(struct socket *sock, int level, - int optname, char __user *optval, int __user *optlen); -#endif void (*show_fdinfo)(struct seq_file *m, struct socket *sock); int (*sendmsg) (struct socket *sock, struct msghdr *m, size_t total_len); diff --git a/include/net/sock.h b/include/net/sock.h index 4bf884165148..1fd7cf5fc751 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -1744,10 +1744,6 @@ int sock_common_recvmsg(struct socket *sock, struct msghdr *msg, size_t size, int flags); int sock_common_setsockopt(struct socket *sock, int level, int optname, char __user *optval, unsigned int optlen); -int compat_sock_common_getsockopt(struct socket *sock, int level, - int optname, char __user *optval, int __user *optlen); -int compat_sock_common_setsockopt(struct socket *sock, int level, - int optname, char __user *optval, unsigned int optlen); void sk_common_release(struct sock *sk); diff --git a/net/core/sock.c b/net/core/sock.c index e085df794825..018404d17626 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -3199,23 +3199,14 @@ int sock_common_getsockopt(struct socket *sock, int level, int optname, { struct sock *sk = sock->sk; - return sk->sk_prot->getsockopt(sk, level, optname, optval, optlen); -} -EXPORT_SYMBOL(sock_common_getsockopt); - #ifdef CONFIG_COMPAT -int compat_sock_common_getsockopt(struct socket *sock, int level, int optname, - char __user *optval, int __user *optlen) -{ - struct sock *sk = sock->sk; - - if (sk->sk_prot->compat_getsockopt != NULL) + 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(compat_sock_common_getsockopt); -#endif +EXPORT_SYMBOL(sock_common_getsockopt); int sock_common_recvmsg(struct socket *sock, struct msghdr *msg, size_t size, int flags) @@ -3240,23 +3231,14 @@ int sock_common_setsockopt(struct socket *sock, int level, int optname, { struct sock *sk = sock->sk; - return sk->sk_prot->setsockopt(sk, level, optname, optval, optlen); -} -EXPORT_SYMBOL(sock_common_setsockopt); - #ifdef CONFIG_COMPAT -int compat_sock_common_setsockopt(struct socket *sock, int level, int optname, - char __user *optval, unsigned int optlen) -{ - struct sock *sk = sock->sk; - - if (sk->sk_prot->compat_setsockopt != NULL) + 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(compat_sock_common_setsockopt); -#endif +EXPORT_SYMBOL(sock_common_setsockopt); void sk_common_release(struct sock *sk) { diff --git a/net/dccp/ipv4.c b/net/dccp/ipv4.c index a7e989919c53..316cc5ac0da7 100644 --- a/net/dccp/ipv4.c +++ b/net/dccp/ipv4.c @@ -999,10 +999,6 @@ static const struct proto_ops inet_dccp_ops = { .recvmsg = sock_common_recvmsg, .mmap = sock_no_mmap, .sendpage = sock_no_sendpage, -#ifdef CONFIG_COMPAT - .compat_setsockopt = compat_sock_common_setsockopt, - .compat_getsockopt = compat_sock_common_getsockopt, -#endif }; static struct inet_protosw dccp_v4_protosw = { diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c index 650187d68851..b50f85a72cd5 100644 --- a/net/dccp/ipv6.c +++ b/net/dccp/ipv6.c @@ -1083,8 +1083,6 @@ static const struct proto_ops inet6_dccp_ops = { .sendpage = sock_no_sendpage, #ifdef CONFIG_COMPAT .compat_ioctl = inet6_compat_ioctl, - .compat_setsockopt = compat_sock_common_setsockopt, - .compat_getsockopt = compat_sock_common_getsockopt, #endif }; diff --git a/net/ieee802154/socket.c b/net/ieee802154/socket.c index d93d4531aa9b..94ae9662133e 100644 --- a/net/ieee802154/socket.c +++ b/net/ieee802154/socket.c @@ -423,10 +423,6 @@ static const struct proto_ops ieee802154_raw_ops = { .recvmsg = sock_common_recvmsg, .mmap = sock_no_mmap, .sendpage = sock_no_sendpage, -#ifdef CONFIG_COMPAT - .compat_setsockopt = compat_sock_common_setsockopt, - .compat_getsockopt = compat_sock_common_getsockopt, -#endif }; /* DGRAM Sockets (802.15.4 dataframes) */ @@ -986,10 +982,6 @@ static const struct proto_ops ieee802154_dgram_ops = { .recvmsg = sock_common_recvmsg, .mmap = sock_no_mmap, .sendpage = sock_no_sendpage, -#ifdef CONFIG_COMPAT - .compat_setsockopt = compat_sock_common_setsockopt, - .compat_getsockopt = compat_sock_common_getsockopt, -#endif }; /* Create a socket. Initialise the socket, blank the addresses diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c index ff141d630bdf..4307503a6f0b 100644 --- a/net/ipv4/af_inet.c +++ b/net/ipv4/af_inet.c @@ -1043,8 +1043,6 @@ const struct proto_ops inet_stream_ops = { .sendpage_locked = tcp_sendpage_locked, .peek_len = tcp_peek_len, #ifdef CONFIG_COMPAT - .compat_setsockopt = compat_sock_common_setsockopt, - .compat_getsockopt = compat_sock_common_getsockopt, .compat_ioctl = inet_compat_ioctl, #endif .set_rcvlowat = tcp_set_rcvlowat, @@ -1073,8 +1071,6 @@ const struct proto_ops inet_dgram_ops = { .sendpage = inet_sendpage, .set_peek_off = sk_set_peek_off, #ifdef CONFIG_COMPAT - .compat_setsockopt = compat_sock_common_setsockopt, - .compat_getsockopt = compat_sock_common_getsockopt, .compat_ioctl = inet_compat_ioctl, #endif }; @@ -1105,8 +1101,6 @@ static const struct proto_ops inet_sockraw_ops = { .mmap = sock_no_mmap, .sendpage = inet_sendpage, #ifdef CONFIG_COMPAT - .compat_setsockopt = compat_sock_common_setsockopt, - .compat_getsockopt = compat_sock_common_getsockopt, .compat_ioctl = inet_compat_ioctl, #endif }; diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c index b304b882e031..0306509ab063 100644 --- a/net/ipv6/af_inet6.c +++ b/net/ipv6/af_inet6.c @@ -688,8 +688,6 @@ const struct proto_ops inet6_stream_ops = { .peek_len = tcp_peek_len, #ifdef CONFIG_COMPAT .compat_ioctl = inet6_compat_ioctl, - .compat_setsockopt = compat_sock_common_setsockopt, - .compat_getsockopt = compat_sock_common_getsockopt, #endif .set_rcvlowat = tcp_set_rcvlowat, }; @@ -717,8 +715,6 @@ const struct proto_ops inet6_dgram_ops = { .set_peek_off = sk_set_peek_off, #ifdef CONFIG_COMPAT .compat_ioctl = inet6_compat_ioctl, - .compat_setsockopt = compat_sock_common_setsockopt, - .compat_getsockopt = compat_sock_common_getsockopt, #endif }; diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c index 20576e87a5f7..6ab44ec2c369 100644 --- a/net/ipv6/ipv6_sockglue.c +++ b/net/ipv6/ipv6_sockglue.c @@ -914,12 +914,8 @@ int compat_ipv6_setsockopt(struct sock *sk, int level, int optname, { int err; - if (level == SOL_IP && sk->sk_type != SOCK_RAW) { - if (udp_prot.compat_setsockopt != NULL) - return udp_prot.compat_setsockopt(sk, level, optname, - optval, optlen); + if (level == SOL_IP && sk->sk_type != SOCK_RAW) return udp_prot.setsockopt(sk, level, optname, optval, optlen); - } if (level != SOL_IPV6) return -ENOPROTOOPT; @@ -1480,12 +1476,8 @@ int compat_ipv6_getsockopt(struct sock *sk, int level, int optname, { int err; - if (level == SOL_IP && sk->sk_type != SOCK_RAW) { - if (udp_prot.compat_getsockopt != NULL) - return udp_prot.compat_getsockopt(sk, level, optname, - optval, optlen); + if (level == SOL_IP && sk->sk_type != SOCK_RAW) return udp_prot.getsockopt(sk, level, optname, optval, optlen); - } if (level != SOL_IPV6) return -ENOPROTOOPT; diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c index 8ef5a7b30524..e23c6b461758 100644 --- a/net/ipv6/raw.c +++ b/net/ipv6/raw.c @@ -1378,8 +1378,6 @@ const struct proto_ops inet6_sockraw_ops = { .sendpage = sock_no_sendpage, #ifdef CONFIG_COMPAT .compat_ioctl = inet6_compat_ioctl, - .compat_setsockopt = compat_sock_common_setsockopt, - .compat_getsockopt = compat_sock_common_getsockopt, #endif }; diff --git a/net/l2tp/l2tp_ip.c b/net/l2tp/l2tp_ip.c index 955662a6dee7..f8d7412cfb3d 100644 --- a/net/l2tp/l2tp_ip.c +++ b/net/l2tp/l2tp_ip.c @@ -638,10 +638,6 @@ static const struct proto_ops l2tp_ip_ops = { .recvmsg = sock_common_recvmsg, .mmap = sock_no_mmap, .sendpage = sock_no_sendpage, -#ifdef CONFIG_COMPAT - .compat_setsockopt = compat_sock_common_setsockopt, - .compat_getsockopt = compat_sock_common_getsockopt, -#endif }; static struct inet_protosw l2tp_ip_protosw = { diff --git a/net/l2tp/l2tp_ip6.c b/net/l2tp/l2tp_ip6.c index 526ed2c24dd5..2cdc0b7a7a43 100644 --- a/net/l2tp/l2tp_ip6.c +++ b/net/l2tp/l2tp_ip6.c @@ -773,8 +773,6 @@ static const struct proto_ops l2tp_ip6_ops = { .sendpage = sock_no_sendpage, #ifdef CONFIG_COMPAT .compat_ioctl = inet6_compat_ioctl, - .compat_setsockopt = compat_sock_common_setsockopt, - .compat_getsockopt = compat_sock_common_getsockopt, #endif }; diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c index dbe43e0cd734..f0b0b503c262 100644 --- a/net/mptcp/protocol.c +++ b/net/mptcp/protocol.c @@ -2166,10 +2166,6 @@ static const struct proto_ops mptcp_stream_ops = { .recvmsg = inet_recvmsg, .mmap = sock_no_mmap, .sendpage = inet_sendpage, -#ifdef CONFIG_COMPAT - .compat_setsockopt = compat_sock_common_setsockopt, - .compat_getsockopt = compat_sock_common_getsockopt, -#endif }; static struct inet_protosw mptcp_protosw = { @@ -2222,8 +2218,6 @@ static const struct proto_ops mptcp_v6_stream_ops = { .sendpage = inet_sendpage, #ifdef CONFIG_COMPAT .compat_ioctl = inet6_compat_ioctl, - .compat_setsockopt = compat_sock_common_setsockopt, - .compat_getsockopt = compat_sock_common_getsockopt, #endif }; diff --git a/net/phonet/socket.c b/net/phonet/socket.c index 76d499f6af9a..87c60f83c180 100644 --- a/net/phonet/socket.c +++ b/net/phonet/socket.c @@ -441,10 +441,6 @@ const struct proto_ops phonet_dgram_ops = { .shutdown = sock_no_shutdown, .setsockopt = sock_no_setsockopt, .getsockopt = sock_no_getsockopt, -#ifdef CONFIG_COMPAT - .compat_setsockopt = sock_no_setsockopt, - .compat_getsockopt = sock_no_getsockopt, -#endif .sendmsg = pn_socket_sendmsg, .recvmsg = sock_common_recvmsg, .mmap = sock_no_mmap, @@ -466,10 +462,6 @@ const struct proto_ops phonet_stream_ops = { .shutdown = sock_no_shutdown, .setsockopt = sock_common_setsockopt, .getsockopt = sock_common_getsockopt, -#ifdef CONFIG_COMPAT - .compat_setsockopt = compat_sock_common_setsockopt, - .compat_getsockopt = compat_sock_common_getsockopt, -#endif .sendmsg = pn_socket_sendmsg, .recvmsg = sock_common_recvmsg, .mmap = sock_no_mmap, diff --git a/net/sctp/ipv6.c b/net/sctp/ipv6.c index ccfa0ab3e7f4..ebda31b7747d 100644 --- a/net/sctp/ipv6.c +++ b/net/sctp/ipv6.c @@ -1033,8 +1033,6 @@ static const struct proto_ops inet6_seqpacket_ops = { .mmap = sock_no_mmap, #ifdef CONFIG_COMPAT .compat_ioctl = inet6_compat_ioctl, - .compat_setsockopt = compat_sock_common_setsockopt, - .compat_getsockopt = compat_sock_common_getsockopt, #endif }; diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c index cde29f3c7fb3..8d25cc464efd 100644 --- a/net/sctp/protocol.c +++ b/net/sctp/protocol.c @@ -1036,10 +1036,6 @@ static const struct proto_ops inet_seqpacket_ops = { .recvmsg = inet_recvmsg, .mmap = sock_no_mmap, .sendpage = sock_no_sendpage, -#ifdef CONFIG_COMPAT - .compat_setsockopt = compat_sock_common_setsockopt, - .compat_getsockopt = compat_sock_common_getsockopt, -#endif }; /* Registration with AF_INET family. */ -- cgit v1.2.3 From 3021ad529950d07e0408d65d0f1df00454c1d223 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Fri, 17 Jul 2020 08:23:30 +0200 Subject: net/ipv6: remove compat_ipv6_{get,set}sockopt Handle the few cases that need special treatment in-line using in_compat_syscall(). This also removes all the now unused compat_{get,set}sockopt methods. Signed-off-by: Christoph Hellwig Signed-off-by: David S. Miller --- include/net/inet_connection_sock.h | 13 --- include/net/ipv6.h | 4 - include/net/sctp/structs.h | 10 -- include/net/sock.h | 8 -- include/net/tcp.h | 4 - net/core/sock.c | 10 -- net/dccp/dccp.h | 6 -- net/dccp/ipv4.c | 4 - net/dccp/ipv6.c | 12 --- net/dccp/proto.c | 26 ------ net/ipv4/inet_connection_sock.c | 28 ------ net/ipv4/tcp.c | 24 ----- net/ipv4/tcp_ipv4.c | 4 - net/ipv6/ipv6_sockglue.c | 183 +++++++++++-------------------------- net/ipv6/raw.c | 50 ---------- net/ipv6/tcp_ipv6.c | 12 --- net/ipv6/udp.c | 25 ----- net/ipv6/udp_impl.h | 6 -- net/ipv6/udplite.c | 4 - net/l2tp/l2tp_ip6.c | 4 - net/sctp/ipv6.c | 4 - 21 files changed, 51 insertions(+), 390 deletions(-) (limited to 'net/core/sock.c') diff --git a/include/net/inet_connection_sock.h b/include/net/inet_connection_sock.h index e5b388f5fa20..157c60cca0ca 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 5e65bf2fd32d..262fc88dbd7e 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 9bbb2f60db92..233bbf7df5d6 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 1fd7cf5fc751..3bd8bc578bf3 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 d62e24533518..9f7f7c0c1104 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 018404d17626..48655d5c4cf3 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 7dce4f6c7025..434eea91b767 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 b91373eb1c79..9c28c8251125 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 b50f85a72cd5..ef4ab28cfde0 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 c13b6609474b..fd92d3fe321f 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 22b0e7336360..d1a3913eebe0 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 254b6a4cc95b..58ede3d62b2e 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 e5b7ef9a2887..cd81b6e04efb 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 1ea0cd12beae..add8f7912299 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 @@ out_free_gsf: 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 @@ done: 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 e23c6b461758..594e01ad670a 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 4502db706f75..c34b7834fd84 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 38c0d9350c6b..5aff0856a05b 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 20e324b6f358..30dfb6f1b762 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 bf7a7acd39b1..fbb700d3f437 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 2cdc0b7a7a43..4799bec87b33 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 ebda31b7747d..aea2a982984d 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 = { -- cgit v1.2.3 From a44d9e72100f7044ac46e4e6dc475f5b4097830f Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Fri, 17 Jul 2020 08:23:31 +0200 Subject: net: make ->{get,set}sockopt in proto_ops optional Just check for a NULL method instead of wiring up sock_no_{get,set}sockopt. Signed-off-by: Christoph Hellwig Acked-by: Marc Kleine-Budde Signed-off-by: David S. Miller --- crypto/af_alg.c | 1 - crypto/algif_aead.c | 4 ---- crypto/algif_hash.c | 4 ---- crypto/algif_rng.c | 2 -- crypto/algif_skcipher.c | 4 ---- drivers/isdn/mISDN/socket.c | 2 -- drivers/net/ppp/pppoe.c | 2 -- drivers/net/ppp/pptp.c | 2 -- include/net/sock.h | 2 -- net/appletalk/ddp.c | 2 -- net/bluetooth/bnep/sock.c | 2 -- net/bluetooth/cmtp/sock.c | 2 -- net/bluetooth/hidp/sock.c | 2 -- net/caif/caif_socket.c | 2 -- net/can/bcm.c | 2 -- net/core/sock.c | 14 -------------- net/key/af_key.c | 2 -- net/nfc/llcp_sock.c | 2 -- net/nfc/rawsock.c | 4 ---- net/packet/af_packet.c | 2 -- net/phonet/socket.c | 2 -- net/qrtr/qrtr.c | 2 -- net/smc/af_smc.c | 9 +++++++-- net/socket.c | 4 ++++ net/unix/af_unix.c | 6 ------ net/vmw_vsock/af_vsock.c | 2 -- 26 files changed, 11 insertions(+), 73 deletions(-) (limited to 'net/core/sock.c') diff --git a/crypto/af_alg.c b/crypto/af_alg.c index 28fc323e3fe3..29f71428520b 100644 --- a/crypto/af_alg.c +++ b/crypto/af_alg.c @@ -335,7 +335,6 @@ static const struct proto_ops alg_proto_ops = { .ioctl = sock_no_ioctl, .listen = sock_no_listen, .shutdown = sock_no_shutdown, - .getsockopt = sock_no_getsockopt, .mmap = sock_no_mmap, .sendpage = sock_no_sendpage, .sendmsg = sock_no_sendmsg, diff --git a/crypto/algif_aead.c b/crypto/algif_aead.c index 0ae000a61c7f..527d09a69462 100644 --- a/crypto/algif_aead.c +++ b/crypto/algif_aead.c @@ -361,11 +361,9 @@ static struct proto_ops algif_aead_ops = { .ioctl = sock_no_ioctl, .listen = sock_no_listen, .shutdown = sock_no_shutdown, - .getsockopt = sock_no_getsockopt, .mmap = sock_no_mmap, .bind = sock_no_bind, .accept = sock_no_accept, - .setsockopt = sock_no_setsockopt, .release = af_alg_release, .sendmsg = aead_sendmsg, @@ -454,11 +452,9 @@ static struct proto_ops algif_aead_ops_nokey = { .ioctl = sock_no_ioctl, .listen = sock_no_listen, .shutdown = sock_no_shutdown, - .getsockopt = sock_no_getsockopt, .mmap = sock_no_mmap, .bind = sock_no_bind, .accept = sock_no_accept, - .setsockopt = sock_no_setsockopt, .release = af_alg_release, .sendmsg = aead_sendmsg_nokey, diff --git a/crypto/algif_hash.c b/crypto/algif_hash.c index e71727c25a7d..50f7b22f1b48 100644 --- a/crypto/algif_hash.c +++ b/crypto/algif_hash.c @@ -279,10 +279,8 @@ static struct proto_ops algif_hash_ops = { .ioctl = sock_no_ioctl, .listen = sock_no_listen, .shutdown = sock_no_shutdown, - .getsockopt = sock_no_getsockopt, .mmap = sock_no_mmap, .bind = sock_no_bind, - .setsockopt = sock_no_setsockopt, .release = af_alg_release, .sendmsg = hash_sendmsg, @@ -383,10 +381,8 @@ static struct proto_ops algif_hash_ops_nokey = { .ioctl = sock_no_ioctl, .listen = sock_no_listen, .shutdown = sock_no_shutdown, - .getsockopt = sock_no_getsockopt, .mmap = sock_no_mmap, .bind = sock_no_bind, - .setsockopt = sock_no_setsockopt, .release = af_alg_release, .sendmsg = hash_sendmsg_nokey, diff --git a/crypto/algif_rng.c b/crypto/algif_rng.c index 087c0ad09d38..6300e0566dc5 100644 --- a/crypto/algif_rng.c +++ b/crypto/algif_rng.c @@ -101,11 +101,9 @@ static struct proto_ops algif_rng_ops = { .ioctl = sock_no_ioctl, .listen = sock_no_listen, .shutdown = sock_no_shutdown, - .getsockopt = sock_no_getsockopt, .mmap = sock_no_mmap, .bind = sock_no_bind, .accept = sock_no_accept, - .setsockopt = sock_no_setsockopt, .sendmsg = sock_no_sendmsg, .sendpage = sock_no_sendpage, diff --git a/crypto/algif_skcipher.c b/crypto/algif_skcipher.c index ec5567c87a6d..c487887f4671 100644 --- a/crypto/algif_skcipher.c +++ b/crypto/algif_skcipher.c @@ -188,11 +188,9 @@ static struct proto_ops algif_skcipher_ops = { .ioctl = sock_no_ioctl, .listen = sock_no_listen, .shutdown = sock_no_shutdown, - .getsockopt = sock_no_getsockopt, .mmap = sock_no_mmap, .bind = sock_no_bind, .accept = sock_no_accept, - .setsockopt = sock_no_setsockopt, .release = af_alg_release, .sendmsg = skcipher_sendmsg, @@ -281,11 +279,9 @@ static struct proto_ops algif_skcipher_ops_nokey = { .ioctl = sock_no_ioctl, .listen = sock_no_listen, .shutdown = sock_no_shutdown, - .getsockopt = sock_no_getsockopt, .mmap = sock_no_mmap, .bind = sock_no_bind, .accept = sock_no_accept, - .setsockopt = sock_no_setsockopt, .release = af_alg_release, .sendmsg = skcipher_sendmsg_nokey, diff --git a/drivers/isdn/mISDN/socket.c b/drivers/isdn/mISDN/socket.c index dff4132b3702..1b2b91479107 100644 --- a/drivers/isdn/mISDN/socket.c +++ b/drivers/isdn/mISDN/socket.c @@ -738,8 +738,6 @@ static const struct proto_ops base_sock_ops = { .recvmsg = sock_no_recvmsg, .listen = sock_no_listen, .shutdown = sock_no_shutdown, - .setsockopt = sock_no_setsockopt, - .getsockopt = sock_no_getsockopt, .connect = sock_no_connect, .socketpair = sock_no_socketpair, .accept = sock_no_accept, diff --git a/drivers/net/ppp/pppoe.c b/drivers/net/ppp/pppoe.c index beedaad08255..d7f50b835050 100644 --- a/drivers/net/ppp/pppoe.c +++ b/drivers/net/ppp/pppoe.c @@ -1110,8 +1110,6 @@ static const struct proto_ops pppoe_ops = { .poll = datagram_poll, .listen = sock_no_listen, .shutdown = sock_no_shutdown, - .setsockopt = sock_no_setsockopt, - .getsockopt = sock_no_getsockopt, .sendmsg = pppoe_sendmsg, .recvmsg = pppoe_recvmsg, .mmap = sock_no_mmap, diff --git a/drivers/net/ppp/pptp.c b/drivers/net/ppp/pptp.c index acccb747aeda..ee5058445d06 100644 --- a/drivers/net/ppp/pptp.c +++ b/drivers/net/ppp/pptp.c @@ -618,8 +618,6 @@ static const struct proto_ops pptp_ops = { .getname = pptp_getname, .listen = sock_no_listen, .shutdown = sock_no_shutdown, - .setsockopt = sock_no_setsockopt, - .getsockopt = sock_no_getsockopt, .sendmsg = sock_no_sendmsg, .recvmsg = sock_no_recvmsg, .mmap = sock_no_mmap, diff --git a/include/net/sock.h b/include/net/sock.h index 3bd8bc578bf3..62e18fc8ac9f 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -1714,8 +1714,6 @@ int sock_no_getname(struct socket *, struct sockaddr *, int); int sock_no_ioctl(struct socket *, unsigned int, unsigned long); int sock_no_listen(struct socket *, int); int sock_no_shutdown(struct socket *, int); -int sock_no_getsockopt(struct socket *, int , int, char __user *, int __user *); -int sock_no_setsockopt(struct socket *, int, int, char __user *, unsigned int); int sock_no_sendmsg(struct socket *, struct msghdr *, size_t); int sock_no_sendmsg_locked(struct sock *sk, struct msghdr *msg, size_t len); int sock_no_recvmsg(struct socket *, struct msghdr *, size_t, int); diff --git a/net/appletalk/ddp.c b/net/appletalk/ddp.c index 15787e8c0629..1d48708c5a2e 100644 --- a/net/appletalk/ddp.c +++ b/net/appletalk/ddp.c @@ -1917,8 +1917,6 @@ static const struct proto_ops atalk_dgram_ops = { #endif .listen = sock_no_listen, .shutdown = sock_no_shutdown, - .setsockopt = sock_no_setsockopt, - .getsockopt = sock_no_getsockopt, .sendmsg = atalk_sendmsg, .recvmsg = atalk_recvmsg, .mmap = sock_no_mmap, diff --git a/net/bluetooth/bnep/sock.c b/net/bluetooth/bnep/sock.c index cfd83c5521ae..d515571b2afb 100644 --- a/net/bluetooth/bnep/sock.c +++ b/net/bluetooth/bnep/sock.c @@ -182,8 +182,6 @@ static const struct proto_ops bnep_sock_ops = { .recvmsg = sock_no_recvmsg, .listen = sock_no_listen, .shutdown = sock_no_shutdown, - .setsockopt = sock_no_setsockopt, - .getsockopt = sock_no_getsockopt, .connect = sock_no_connect, .socketpair = sock_no_socketpair, .accept = sock_no_accept, diff --git a/net/bluetooth/cmtp/sock.c b/net/bluetooth/cmtp/sock.c index defdd4871919..96d49d9fae96 100644 --- a/net/bluetooth/cmtp/sock.c +++ b/net/bluetooth/cmtp/sock.c @@ -185,8 +185,6 @@ static const struct proto_ops cmtp_sock_ops = { .recvmsg = sock_no_recvmsg, .listen = sock_no_listen, .shutdown = sock_no_shutdown, - .setsockopt = sock_no_setsockopt, - .getsockopt = sock_no_getsockopt, .connect = sock_no_connect, .socketpair = sock_no_socketpair, .accept = sock_no_accept, diff --git a/net/bluetooth/hidp/sock.c b/net/bluetooth/hidp/sock.c index 03be6a4baef3..595fb3c9d6c3 100644 --- a/net/bluetooth/hidp/sock.c +++ b/net/bluetooth/hidp/sock.c @@ -233,8 +233,6 @@ static const struct proto_ops hidp_sock_ops = { .recvmsg = sock_no_recvmsg, .listen = sock_no_listen, .shutdown = sock_no_shutdown, - .setsockopt = sock_no_setsockopt, - .getsockopt = sock_no_getsockopt, .connect = sock_no_connect, .socketpair = sock_no_socketpair, .accept = sock_no_accept, diff --git a/net/caif/caif_socket.c b/net/caif/caif_socket.c index ef14da50a981..b94ecd931002 100644 --- a/net/caif/caif_socket.c +++ b/net/caif/caif_socket.c @@ -981,7 +981,6 @@ static const struct proto_ops caif_seqpacket_ops = { .listen = sock_no_listen, .shutdown = sock_no_shutdown, .setsockopt = setsockopt, - .getsockopt = sock_no_getsockopt, .sendmsg = caif_seqpkt_sendmsg, .recvmsg = caif_seqpkt_recvmsg, .mmap = sock_no_mmap, @@ -1002,7 +1001,6 @@ static const struct proto_ops caif_stream_ops = { .listen = sock_no_listen, .shutdown = sock_no_shutdown, .setsockopt = setsockopt, - .getsockopt = sock_no_getsockopt, .sendmsg = caif_stream_sendmsg, .recvmsg = caif_stream_recvmsg, .mmap = sock_no_mmap, diff --git a/net/can/bcm.c b/net/can/bcm.c index c96fa0f33db3..d14ea12affb1 100644 --- a/net/can/bcm.c +++ b/net/can/bcm.c @@ -1648,8 +1648,6 @@ static const struct proto_ops bcm_ops = { .gettstamp = sock_gettstamp, .listen = sock_no_listen, .shutdown = sock_no_shutdown, - .setsockopt = sock_no_setsockopt, - .getsockopt = sock_no_getsockopt, .sendmsg = bcm_sendmsg, .recvmsg = bcm_recvmsg, .mmap = sock_no_mmap, diff --git a/net/core/sock.c b/net/core/sock.c index 48655d5c4cf3..d828bfe1c47d 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -2783,20 +2783,6 @@ int sock_no_shutdown(struct socket *sock, int how) } EXPORT_SYMBOL(sock_no_shutdown); -int sock_no_setsockopt(struct socket *sock, int level, int optname, - char __user *optval, unsigned int optlen) -{ - return -EOPNOTSUPP; -} -EXPORT_SYMBOL(sock_no_setsockopt); - -int sock_no_getsockopt(struct socket *sock, int level, int optname, - char __user *optval, int __user *optlen) -{ - return -EOPNOTSUPP; -} -EXPORT_SYMBOL(sock_no_getsockopt); - int sock_no_sendmsg(struct socket *sock, struct msghdr *m, size_t len) { return -EOPNOTSUPP; diff --git a/net/key/af_key.c b/net/key/af_key.c index b67ed3a8486c..f13626c1a985 100644 --- a/net/key/af_key.c +++ b/net/key/af_key.c @@ -3734,8 +3734,6 @@ static const struct proto_ops pfkey_ops = { .ioctl = sock_no_ioctl, .listen = sock_no_listen, .shutdown = sock_no_shutdown, - .setsockopt = sock_no_setsockopt, - .getsockopt = sock_no_getsockopt, .mmap = sock_no_mmap, .sendpage = sock_no_sendpage, diff --git a/net/nfc/llcp_sock.c b/net/nfc/llcp_sock.c index 28604414dec1..6da1e2334bb6 100644 --- a/net/nfc/llcp_sock.c +++ b/net/nfc/llcp_sock.c @@ -921,8 +921,6 @@ static const struct proto_ops llcp_rawsock_ops = { .ioctl = sock_no_ioctl, .listen = sock_no_listen, .shutdown = sock_no_shutdown, - .setsockopt = sock_no_setsockopt, - .getsockopt = sock_no_getsockopt, .sendmsg = sock_no_sendmsg, .recvmsg = llcp_sock_recvmsg, .mmap = sock_no_mmap, diff --git a/net/nfc/rawsock.c b/net/nfc/rawsock.c index ba5ffd3badd3..b2061b6746ea 100644 --- a/net/nfc/rawsock.c +++ b/net/nfc/rawsock.c @@ -276,8 +276,6 @@ static const struct proto_ops rawsock_ops = { .ioctl = sock_no_ioctl, .listen = sock_no_listen, .shutdown = sock_no_shutdown, - .setsockopt = sock_no_setsockopt, - .getsockopt = sock_no_getsockopt, .sendmsg = rawsock_sendmsg, .recvmsg = rawsock_recvmsg, .mmap = sock_no_mmap, @@ -296,8 +294,6 @@ static const struct proto_ops rawsock_raw_ops = { .ioctl = sock_no_ioctl, .listen = sock_no_listen, .shutdown = sock_no_shutdown, - .setsockopt = sock_no_setsockopt, - .getsockopt = sock_no_getsockopt, .sendmsg = sock_no_sendmsg, .recvmsg = rawsock_recvmsg, .mmap = sock_no_mmap, diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c index 35aee9e98053..c240fb5de3f0 100644 --- a/net/packet/af_packet.c +++ b/net/packet/af_packet.c @@ -4503,8 +4503,6 @@ static const struct proto_ops packet_ops_spkt = { .gettstamp = sock_gettstamp, .listen = sock_no_listen, .shutdown = sock_no_shutdown, - .setsockopt = sock_no_setsockopt, - .getsockopt = sock_no_getsockopt, .sendmsg = packet_sendmsg_spkt, .recvmsg = packet_recvmsg, .mmap = sock_no_mmap, diff --git a/net/phonet/socket.c b/net/phonet/socket.c index 87c60f83c180..2599235d592e 100644 --- a/net/phonet/socket.c +++ b/net/phonet/socket.c @@ -439,8 +439,6 @@ const struct proto_ops phonet_dgram_ops = { .ioctl = pn_socket_ioctl, .listen = sock_no_listen, .shutdown = sock_no_shutdown, - .setsockopt = sock_no_setsockopt, - .getsockopt = sock_no_getsockopt, .sendmsg = pn_socket_sendmsg, .recvmsg = sock_common_recvmsg, .mmap = sock_no_mmap, diff --git a/net/qrtr/qrtr.c b/net/qrtr/qrtr.c index 24a8c3c6da0d..0cb4adfc6641 100644 --- a/net/qrtr/qrtr.c +++ b/net/qrtr/qrtr.c @@ -1208,8 +1208,6 @@ static const struct proto_ops qrtr_proto_ops = { .gettstamp = sock_gettstamp, .poll = datagram_poll, .shutdown = sock_no_shutdown, - .setsockopt = sock_no_setsockopt, - .getsockopt = sock_no_getsockopt, .release = qrtr_release, .mmap = sock_no_mmap, .sendpage = sock_no_sendpage, diff --git a/net/smc/af_smc.c b/net/smc/af_smc.c index 903321543838..9711c9e0e515 100644 --- a/net/smc/af_smc.c +++ b/net/smc/af_smc.c @@ -1742,8 +1742,11 @@ static int smc_setsockopt(struct socket *sock, int level, int optname, /* generic setsockopts reaching us here always apply to the * CLC socket */ - rc = smc->clcsock->ops->setsockopt(smc->clcsock, level, optname, - optval, optlen); + if (unlikely(!smc->clcsock->ops->setsockopt)) + rc = -EOPNOTSUPP; + else + rc = smc->clcsock->ops->setsockopt(smc->clcsock, level, optname, + optval, optlen); if (smc->clcsock->sk->sk_err) { sk->sk_err = smc->clcsock->sk->sk_err; sk->sk_error_report(sk); @@ -1808,6 +1811,8 @@ static int smc_getsockopt(struct socket *sock, int level, int optname, smc = smc_sk(sock->sk); /* socket options apply to the CLC socket */ + if (unlikely(!smc->clcsock->ops->getsockopt)) + return -EOPNOTSUPP; return smc->clcsock->ops->getsockopt(smc->clcsock, level, optname, optval, optlen); } diff --git a/net/socket.c b/net/socket.c index dec345982abb..93846568c2fb 100644 --- a/net/socket.c +++ b/net/socket.c @@ -2131,6 +2131,8 @@ int __sys_setsockopt(int fd, int level, int optname, char __user *optval, if (level == SOL_SOCKET && !sock_use_custom_sol_socket(sock)) err = sock_setsockopt(sock, level, optname, optval, optlen); + else if (unlikely(!sock->ops->setsockopt)) + err = -EOPNOTSUPP; else err = sock->ops->setsockopt(sock, level, optname, optval, optlen); @@ -2175,6 +2177,8 @@ int __sys_getsockopt(int fd, int level, int optname, char __user *optval, if (level == SOL_SOCKET) err = sock_getsockopt(sock, level, optname, optval, optlen); + else if (unlikely(!sock->ops->getsockopt)) + err = -EOPNOTSUPP; else err = sock->ops->getsockopt(sock, level, optname, optval, optlen); diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c index 3385a7a0b231..181ea6fb56a6 100644 --- a/net/unix/af_unix.c +++ b/net/unix/af_unix.c @@ -714,8 +714,6 @@ static const struct proto_ops unix_stream_ops = { #endif .listen = unix_listen, .shutdown = unix_shutdown, - .setsockopt = sock_no_setsockopt, - .getsockopt = sock_no_getsockopt, .sendmsg = unix_stream_sendmsg, .recvmsg = unix_stream_recvmsg, .mmap = sock_no_mmap, @@ -741,8 +739,6 @@ static const struct proto_ops unix_dgram_ops = { #endif .listen = sock_no_listen, .shutdown = unix_shutdown, - .setsockopt = sock_no_setsockopt, - .getsockopt = sock_no_getsockopt, .sendmsg = unix_dgram_sendmsg, .recvmsg = unix_dgram_recvmsg, .mmap = sock_no_mmap, @@ -767,8 +763,6 @@ static const struct proto_ops unix_seqpacket_ops = { #endif .listen = unix_listen, .shutdown = unix_shutdown, - .setsockopt = sock_no_setsockopt, - .getsockopt = sock_no_getsockopt, .sendmsg = unix_seqpacket_sendmsg, .recvmsg = unix_seqpacket_recvmsg, .mmap = sock_no_mmap, diff --git a/net/vmw_vsock/af_vsock.c b/net/vmw_vsock/af_vsock.c index 626bf9044418..df204c6761c4 100644 --- a/net/vmw_vsock/af_vsock.c +++ b/net/vmw_vsock/af_vsock.c @@ -1202,8 +1202,6 @@ static const struct proto_ops vsock_dgram_ops = { .ioctl = sock_no_ioctl, .listen = sock_no_listen, .shutdown = vsock_shutdown, - .setsockopt = sock_no_setsockopt, - .getsockopt = sock_no_getsockopt, .sendmsg = vsock_dgram_sendmsg, .recvmsg = vsock_dgram_recvmsg, .mmap = sock_no_mmap, -- cgit v1.2.3 From a6c0d0934f0d8d4e32a3e3bca4b503a3e7237470 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Wed, 22 Jul 2020 09:40:27 +0200 Subject: net: explicitly include in net/core/sock.c The buildbot found a config where the header isn't already implicitly pulled in, so add an explicit include as well. Fixes: 8c918ffbbad4 ("net: remove compat_sock_common_{get,set}sockopt") Signed-off-by: Christoph Hellwig Signed-off-by: David S. Miller --- net/core/sock.c | 1 + 1 file changed, 1 insertion(+) (limited to 'net/core/sock.c') diff --git a/net/core/sock.c b/net/core/sock.c index d828bfe1c47d..6da54eac2b34 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -113,6 +113,7 @@ #include #include #include +#include #include -- cgit v1.2.3 From b1ea9ff6aff2deae84eccaf0a07cd14912669680 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Thu, 23 Jul 2020 08:08:47 +0200 Subject: net: switch copy_bpf_fprog_from_user to sockptr_t Pass a sockptr_t to prepare for set_fs-less handling of the kernel pointer from bpf-cgroup. Signed-off-by: Christoph Hellwig Signed-off-by: David S. Miller --- include/linux/filter.h | 3 ++- net/core/filter.c | 6 +++--- net/core/sock.c | 6 ++++-- net/packet/af_packet.c | 4 ++-- 4 files changed, 11 insertions(+), 8 deletions(-) (limited to 'net/core/sock.c') diff --git a/include/linux/filter.h b/include/linux/filter.h index 1c6b6d982bf4..d07a6e973a7d 100644 --- a/include/linux/filter.h +++ b/include/linux/filter.h @@ -20,6 +20,7 @@ #include #include #include +#include #include #include @@ -1276,7 +1277,7 @@ struct bpf_sockopt_kern { s32 retval; }; -int copy_bpf_fprog_from_user(struct sock_fprog *dst, void __user *src, int len); +int copy_bpf_fprog_from_user(struct sock_fprog *dst, sockptr_t src, int len); struct bpf_sk_lookup_kern { u16 family; diff --git a/net/core/filter.c b/net/core/filter.c index 3fa16b8c0d61..29e3455122f7 100644 --- a/net/core/filter.c +++ b/net/core/filter.c @@ -77,14 +77,14 @@ #include #include -int copy_bpf_fprog_from_user(struct sock_fprog *dst, void __user *src, int len) +int copy_bpf_fprog_from_user(struct sock_fprog *dst, sockptr_t src, int len) { if (in_compat_syscall()) { struct compat_sock_fprog f32; if (len != sizeof(f32)) return -EINVAL; - if (copy_from_user(&f32, src, sizeof(f32))) + if (copy_from_sockptr(&f32, src, sizeof(f32))) return -EFAULT; memset(dst, 0, sizeof(*dst)); dst->len = f32.len; @@ -92,7 +92,7 @@ int copy_bpf_fprog_from_user(struct sock_fprog *dst, void __user *src, int len) } else { if (len != sizeof(*dst)) return -EINVAL; - if (copy_from_user(dst, src, sizeof(*dst))) + if (copy_from_sockptr(dst, src, sizeof(*dst))) return -EFAULT; } diff --git a/net/core/sock.c b/net/core/sock.c index 6da54eac2b34..71fc7e4ddd06 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -1063,7 +1063,8 @@ set_sndbuf: case SO_ATTACH_FILTER: { struct sock_fprog fprog; - ret = copy_bpf_fprog_from_user(&fprog, optval, optlen); + ret = copy_bpf_fprog_from_user(&fprog, USER_SOCKPTR(optval), + optlen); if (!ret) ret = sk_attach_filter(&fprog, sk); break; @@ -1084,7 +1085,8 @@ set_sndbuf: case SO_ATTACH_REUSEPORT_CBPF: { struct sock_fprog fprog; - ret = copy_bpf_fprog_from_user(&fprog, optval, optlen); + ret = copy_bpf_fprog_from_user(&fprog, USER_SOCKPTR(optval), + optlen); if (!ret) ret = sk_reuseport_attach_filter(&fprog, sk); break; diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c index c240fb5de3f0..d8d4f78f78e4 100644 --- a/net/packet/af_packet.c +++ b/net/packet/af_packet.c @@ -1536,7 +1536,7 @@ static void __fanout_set_data_bpf(struct packet_fanout *f, struct bpf_prog *new) } } -static int fanout_set_data_cbpf(struct packet_sock *po, char __user *data, +static int fanout_set_data_cbpf(struct packet_sock *po, sockptr_t data, unsigned int len) { struct bpf_prog *new; @@ -1584,7 +1584,7 @@ static int fanout_set_data(struct packet_sock *po, char __user *data, { switch (po->fanout->type) { case PACKET_FANOUT_CBPF: - return fanout_set_data_cbpf(po, data, len); + return fanout_set_data_cbpf(po, USER_SOCKPTR(data), len); case PACKET_FANOUT_EBPF: return fanout_set_data_ebpf(po, data, len); default: -- cgit v1.2.3 From 5790642b4748acbb5560f7a6fcb19f572297cf63 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Thu, 23 Jul 2020 08:08:48 +0200 Subject: net: switch sock_setbindtodevice to sockptr_t Pass a sockptr_t to prepare for set_fs-less handling of the kernel pointer from bpf-cgroup. Signed-off-by: Christoph Hellwig Signed-off-by: David S. Miller --- net/core/sock.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) (limited to 'net/core/sock.c') diff --git a/net/core/sock.c b/net/core/sock.c index 71fc7e4ddd06..5b55bc9397f2 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -609,8 +609,7 @@ int sock_bindtoindex(struct sock *sk, int ifindex, bool lock_sk) } EXPORT_SYMBOL(sock_bindtoindex); -static int sock_setbindtodevice(struct sock *sk, char __user *optval, - int optlen) +static int sock_setbindtodevice(struct sock *sk, sockptr_t optval, int optlen) { int ret = -ENOPROTOOPT; #ifdef CONFIG_NETDEVICES @@ -632,7 +631,7 @@ static int sock_setbindtodevice(struct sock *sk, char __user *optval, memset(devname, 0, sizeof(devname)); ret = -EFAULT; - if (copy_from_user(devname, optval, optlen)) + if (copy_from_sockptr(devname, optval, optlen)) goto out; index = 0; @@ -840,7 +839,7 @@ int sock_setsockopt(struct socket *sock, int level, int optname, */ if (optname == SO_BINDTODEVICE) - return sock_setbindtodevice(sk, optval, optlen); + return sock_setbindtodevice(sk, USER_SOCKPTR(optval), optlen); if (optlen < sizeof(int)) return -EINVAL; -- cgit v1.2.3 From c34645ac25484968ddace9a6b140b70e72dc49b3 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Thu, 23 Jul 2020 08:08:49 +0200 Subject: net: switch sock_set_timeout to sockptr_t Pass a sockptr_t to prepare for set_fs-less handling of the kernel pointer from bpf-cgroup. Signed-off-by: Christoph Hellwig Signed-off-by: David S. Miller --- net/core/sock.c | 15 +++++++++------ 1 file changed, 9 insertions(+), 6 deletions(-) (limited to 'net/core/sock.c') diff --git a/net/core/sock.c b/net/core/sock.c index 5b55bc9397f2..8b9eddaff868 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -361,7 +361,8 @@ static int sock_get_timeout(long timeo, void *optval, bool old_timeval) return sizeof(tv); } -static int sock_set_timeout(long *timeo_p, char __user *optval, int optlen, bool old_timeval) +static int sock_set_timeout(long *timeo_p, sockptr_t optval, int optlen, + bool old_timeval) { struct __kernel_sock_timeval tv; @@ -371,7 +372,7 @@ static int sock_set_timeout(long *timeo_p, char __user *optval, int optlen, bool if (optlen < sizeof(tv32)) return -EINVAL; - if (copy_from_user(&tv32, optval, sizeof(tv32))) + if (copy_from_sockptr(&tv32, optval, sizeof(tv32))) return -EFAULT; tv.tv_sec = tv32.tv_sec; tv.tv_usec = tv32.tv_usec; @@ -380,14 +381,14 @@ static int sock_set_timeout(long *timeo_p, char __user *optval, int optlen, bool if (optlen < sizeof(old_tv)) return -EINVAL; - if (copy_from_user(&old_tv, optval, sizeof(old_tv))) + if (copy_from_sockptr(&old_tv, optval, sizeof(old_tv))) return -EFAULT; tv.tv_sec = old_tv.tv_sec; tv.tv_usec = old_tv.tv_usec; } else { if (optlen < sizeof(tv)) return -EINVAL; - if (copy_from_user(&tv, optval, sizeof(tv))) + if (copy_from_sockptr(&tv, optval, sizeof(tv))) return -EFAULT; } if (tv.tv_usec < 0 || tv.tv_usec >= USEC_PER_SEC) @@ -1051,12 +1052,14 @@ set_sndbuf: case SO_RCVTIMEO_OLD: case SO_RCVTIMEO_NEW: - ret = sock_set_timeout(&sk->sk_rcvtimeo, optval, optlen, optname == SO_RCVTIMEO_OLD); + ret = sock_set_timeout(&sk->sk_rcvtimeo, USER_SOCKPTR(optval), + optlen, optname == SO_RCVTIMEO_OLD); break; case SO_SNDTIMEO_OLD: case SO_SNDTIMEO_NEW: - ret = sock_set_timeout(&sk->sk_sndtimeo, optval, optlen, optname == SO_SNDTIMEO_OLD); + ret = sock_set_timeout(&sk->sk_sndtimeo, USER_SOCKPTR(optval), + optlen, optname == SO_SNDTIMEO_OLD); break; case SO_ATTACH_FILTER: { -- cgit v1.2.3 From c8c1bbb6eb498109286739f8b6090e99313dd104 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Thu, 23 Jul 2020 08:08:50 +0200 Subject: net: switch sock_set_timeout to sockptr_t Pass a sockptr_t to prepare for set_fs-less handling of the kernel pointer from bpf-cgroup. Signed-off-by: Christoph Hellwig Acked-by: Matthieu Baerts Signed-off-by: David S. Miller --- include/net/sock.h | 3 ++- net/core/sock.c | 26 ++++++++++++-------------- net/mptcp/protocol.c | 6 ++++-- net/socket.c | 3 ++- 4 files changed, 20 insertions(+), 18 deletions(-) (limited to 'net/core/sock.c') diff --git a/include/net/sock.h b/include/net/sock.h index 62e18fc8ac9f..bfb2fe2fc368 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -59,6 +59,7 @@ #include #include #include +#include #include #include @@ -1669,7 +1670,7 @@ void sock_pfree(struct sk_buff *skb); #endif int sock_setsockopt(struct socket *sock, int level, int op, - char __user *optval, unsigned int optlen); + sockptr_t optval, unsigned int optlen); int sock_getsockopt(struct socket *sock, int level, int op, char __user *optval, int __user *optlen); diff --git a/net/core/sock.c b/net/core/sock.c index 8b9eddaff868..1444d7d53ba2 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -826,7 +826,7 @@ EXPORT_SYMBOL(sock_set_rcvbuf); */ int sock_setsockopt(struct socket *sock, int level, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { struct sock_txtime sk_txtime; struct sock *sk = sock->sk; @@ -840,12 +840,12 @@ int sock_setsockopt(struct socket *sock, int level, int optname, */ if (optname == SO_BINDTODEVICE) - return sock_setbindtodevice(sk, USER_SOCKPTR(optval), optlen); + return sock_setbindtodevice(sk, optval, optlen); if (optlen < sizeof(int)) return -EINVAL; - if (get_user(val, (int __user *)optval)) + if (copy_from_sockptr(&val, optval, sizeof(val))) return -EFAULT; valbool = val ? 1 : 0; @@ -958,7 +958,7 @@ set_sndbuf: ret = -EINVAL; /* 1003.1g */ break; } - if (copy_from_user(&ling, optval, sizeof(ling))) { + if (copy_from_sockptr(&ling, optval, sizeof(ling))) { ret = -EFAULT; break; } @@ -1052,21 +1052,20 @@ set_sndbuf: case SO_RCVTIMEO_OLD: case SO_RCVTIMEO_NEW: - ret = sock_set_timeout(&sk->sk_rcvtimeo, USER_SOCKPTR(optval), + ret = sock_set_timeout(&sk->sk_rcvtimeo, optval, optlen, optname == SO_RCVTIMEO_OLD); break; case SO_SNDTIMEO_OLD: case SO_SNDTIMEO_NEW: - ret = sock_set_timeout(&sk->sk_sndtimeo, USER_SOCKPTR(optval), + ret = sock_set_timeout(&sk->sk_sndtimeo, optval, optlen, optname == SO_SNDTIMEO_OLD); break; case SO_ATTACH_FILTER: { struct sock_fprog fprog; - ret = copy_bpf_fprog_from_user(&fprog, USER_SOCKPTR(optval), - optlen); + ret = copy_bpf_fprog_from_user(&fprog, optval, optlen); if (!ret) ret = sk_attach_filter(&fprog, sk); break; @@ -1077,7 +1076,7 @@ set_sndbuf: u32 ufd; ret = -EFAULT; - if (copy_from_user(&ufd, optval, sizeof(ufd))) + if (copy_from_sockptr(&ufd, optval, sizeof(ufd))) break; ret = sk_attach_bpf(ufd, sk); @@ -1087,8 +1086,7 @@ set_sndbuf: case SO_ATTACH_REUSEPORT_CBPF: { struct sock_fprog fprog; - ret = copy_bpf_fprog_from_user(&fprog, USER_SOCKPTR(optval), - optlen); + ret = copy_bpf_fprog_from_user(&fprog, optval, optlen); if (!ret) ret = sk_reuseport_attach_filter(&fprog, sk); break; @@ -1099,7 +1097,7 @@ set_sndbuf: u32 ufd; ret = -EFAULT; - if (copy_from_user(&ufd, optval, sizeof(ufd))) + if (copy_from_sockptr(&ufd, optval, sizeof(ufd))) break; ret = sk_reuseport_attach_bpf(ufd, sk); @@ -1179,7 +1177,7 @@ set_sndbuf: if (sizeof(ulval) != sizeof(val) && optlen >= sizeof(ulval) && - get_user(ulval, (unsigned long __user *)optval)) { + copy_from_sockptr(&ulval, optval, sizeof(ulval))) { ret = -EFAULT; break; } @@ -1222,7 +1220,7 @@ set_sndbuf: if (optlen != sizeof(struct sock_txtime)) { ret = -EINVAL; break; - } else if (copy_from_user(&sk_txtime, optval, + } else if (copy_from_sockptr(&sk_txtime, optval, sizeof(struct sock_txtime))) { ret = -EFAULT; break; diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c index 979dfcd2aa14..7246847efa90 100644 --- a/net/mptcp/protocol.c +++ b/net/mptcp/protocol.c @@ -1648,7 +1648,8 @@ static int mptcp_setsockopt_sol_socket(struct mptcp_sock *msk, int optname, return -EINVAL; } - ret = sock_setsockopt(ssock, SOL_SOCKET, optname, optval, optlen); + ret = sock_setsockopt(ssock, SOL_SOCKET, optname, + USER_SOCKPTR(optval), optlen); if (ret == 0) { if (optname == SO_REUSEPORT) sk->sk_reuseport = ssock->sk->sk_reuseport; @@ -1659,7 +1660,8 @@ static int mptcp_setsockopt_sol_socket(struct mptcp_sock *msk, int optname, return ret; } - return sock_setsockopt(sk->sk_socket, SOL_SOCKET, optname, optval, optlen); + return sock_setsockopt(sk->sk_socket, SOL_SOCKET, optname, + USER_SOCKPTR(optval), optlen); } static int mptcp_setsockopt_v6(struct mptcp_sock *msk, int optname, diff --git a/net/socket.c b/net/socket.c index 93846568c2fb..c97f83d879ae 100644 --- a/net/socket.c +++ b/net/socket.c @@ -2130,7 +2130,8 @@ int __sys_setsockopt(int fd, int level, int optname, char __user *optval, } if (level == SOL_SOCKET && !sock_use_custom_sol_socket(sock)) - err = sock_setsockopt(sock, level, optname, optval, optlen); + err = sock_setsockopt(sock, level, optname, + USER_SOCKPTR(optval), optlen); else if (unlikely(!sock->ops->setsockopt)) err = -EOPNOTSUPP; else -- cgit v1.2.3 From a7b75c5a8c41445f33efb663887ff5f5c3b4454b Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Thu, 23 Jul 2020 08:09:07 +0200 Subject: net: pass a sockptr_t into ->setsockopt Rework the remaining setsockopt code to pass a sockptr_t instead of a plain user pointer. This removes the last remaining set_fs(KERNEL_DS) outside of architecture specific code. Signed-off-by: Christoph Hellwig Acked-by: Stefan Schmidt [ieee802154] Acked-by: Matthieu Baerts Signed-off-by: David S. Miller --- crypto/af_alg.c | 7 +++--- drivers/crypto/chelsio/chtls/chtls_main.c | 18 +++++++------- drivers/isdn/mISDN/socket.c | 4 ++-- include/linux/net.h | 4 +++- include/net/inet_connection_sock.h | 3 ++- include/net/ip.h | 2 +- include/net/ipv6.h | 4 ++-- include/net/sctp/structs.h | 2 +- include/net/sock.h | 4 ++-- include/net/tcp.h | 4 ++-- net/atm/common.c | 6 ++--- net/atm/common.h | 2 +- net/atm/pvc.c | 2 +- net/atm/svc.c | 6 ++--- net/ax25/af_ax25.c | 6 ++--- net/bluetooth/hci_sock.c | 8 +++---- net/bluetooth/l2cap_sock.c | 22 ++++++++--------- net/bluetooth/rfcomm/sock.c | 12 ++++++---- net/bluetooth/sco.c | 6 ++--- net/caif/caif_socket.c | 8 +++---- net/can/j1939/socket.c | 12 +++++----- net/can/raw.c | 16 ++++++------- net/core/sock.c | 2 +- net/dccp/dccp.h | 2 +- net/dccp/proto.c | 20 ++++++++-------- net/decnet/af_decnet.c | 16 +++++++------ net/ieee802154/socket.c | 6 ++--- net/ipv4/ip_sockglue.c | 13 ++++------- net/ipv4/raw.c | 8 +++---- net/ipv4/tcp.c | 5 ++-- net/ipv4/udp.c | 6 ++--- net/ipv4/udp_impl.h | 4 ++-- net/ipv6/ipv6_sockglue.c | 10 ++++---- net/ipv6/raw.c | 10 ++++---- net/ipv6/udp.c | 6 ++--- net/ipv6/udp_impl.h | 4 ++-- net/iucv/af_iucv.c | 4 ++-- net/kcm/kcmsock.c | 6 ++--- net/l2tp/l2tp_ppp.c | 4 ++-- net/llc/af_llc.c | 4 ++-- net/mptcp/protocol.c | 12 ++++------ net/netlink/af_netlink.c | 4 ++-- net/netrom/af_netrom.c | 4 ++-- net/nfc/llcp_sock.c | 6 ++--- net/packet/af_packet.c | 39 ++++++++++++++++--------------- net/phonet/pep.c | 4 ++-- net/rds/af_rds.c | 30 +++++++++++------------- net/rds/rdma.c | 14 +++++------ net/rds/rds.h | 6 ++--- net/rose/af_rose.c | 4 ++-- net/rxrpc/af_rxrpc.c | 8 +++---- net/rxrpc/ar-internal.h | 4 ++-- net/rxrpc/key.c | 9 ++++--- net/sctp/socket.c | 4 ++-- net/smc/af_smc.c | 4 ++-- net/socket.c | 23 ++++++------------ net/tipc/socket.c | 8 +++---- net/tls/tls_main.c | 17 +++++++------- net/vmw_vsock/af_vsock.c | 4 ++-- net/x25/af_x25.c | 4 ++-- net/xdp/xsk.c | 8 +++---- 61 files changed, 246 insertions(+), 258 deletions(-) (limited to 'net/core/sock.c') diff --git a/crypto/af_alg.c b/crypto/af_alg.c index 29f71428520b..892242a42c3e 100644 --- a/crypto/af_alg.c +++ b/crypto/af_alg.c @@ -197,8 +197,7 @@ unlock: return err; } -static int alg_setkey(struct sock *sk, char __user *ukey, - unsigned int keylen) +static int alg_setkey(struct sock *sk, sockptr_t ukey, unsigned int keylen) { struct alg_sock *ask = alg_sk(sk); const struct af_alg_type *type = ask->type; @@ -210,7 +209,7 @@ static int alg_setkey(struct sock *sk, char __user *ukey, return -ENOMEM; err = -EFAULT; - if (copy_from_user(key, ukey, keylen)) + if (copy_from_sockptr(key, ukey, keylen)) goto out; err = type->setkey(ask->private, key, keylen); @@ -222,7 +221,7 @@ out: } static int alg_setsockopt(struct socket *sock, int level, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { struct sock *sk = sock->sk; struct alg_sock *ask = alg_sk(sk); diff --git a/drivers/crypto/chelsio/chtls/chtls_main.c b/drivers/crypto/chelsio/chtls/chtls_main.c index d98b89d0fa6e..c3058dcdb33c 100644 --- a/drivers/crypto/chelsio/chtls/chtls_main.c +++ b/drivers/crypto/chelsio/chtls/chtls_main.c @@ -488,7 +488,7 @@ static int chtls_getsockopt(struct sock *sk, int level, int optname, } static int do_chtls_setsockopt(struct sock *sk, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { struct tls_crypto_info *crypto_info, tmp_crypto_info; struct chtls_sock *csk; @@ -498,12 +498,12 @@ static int do_chtls_setsockopt(struct sock *sk, int optname, csk = rcu_dereference_sk_user_data(sk); - if (!optval || optlen < sizeof(*crypto_info)) { + if (sockptr_is_null(optval) || optlen < sizeof(*crypto_info)) { rc = -EINVAL; goto out; } - rc = copy_from_user(&tmp_crypto_info, optval, sizeof(*crypto_info)); + rc = copy_from_sockptr(&tmp_crypto_info, optval, sizeof(*crypto_info)); if (rc) { rc = -EFAULT; goto out; @@ -525,8 +525,9 @@ static int do_chtls_setsockopt(struct sock *sk, int optname, /* Obtain version and type from previous copy */ crypto_info[0] = tmp_crypto_info; /* Now copy the following data */ - rc = copy_from_user((char *)crypto_info + sizeof(*crypto_info), - optval + sizeof(*crypto_info), + sockptr_advance(optval, sizeof(*crypto_info)); + rc = copy_from_sockptr((char *)crypto_info + sizeof(*crypto_info), + optval, sizeof(struct tls12_crypto_info_aes_gcm_128) - sizeof(*crypto_info)); @@ -541,8 +542,9 @@ static int do_chtls_setsockopt(struct sock *sk, int optname, } case TLS_CIPHER_AES_GCM_256: { crypto_info[0] = tmp_crypto_info; - rc = copy_from_user((char *)crypto_info + sizeof(*crypto_info), - optval + sizeof(*crypto_info), + sockptr_advance(optval, sizeof(*crypto_info)); + rc = copy_from_sockptr((char *)crypto_info + sizeof(*crypto_info), + optval, sizeof(struct tls12_crypto_info_aes_gcm_256) - sizeof(*crypto_info)); @@ -565,7 +567,7 @@ out: } static int chtls_setsockopt(struct sock *sk, int level, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { struct tls_context *ctx = tls_get_ctx(sk); diff --git a/drivers/isdn/mISDN/socket.c b/drivers/isdn/mISDN/socket.c index 1b2b91479107..2835daae9e9f 100644 --- a/drivers/isdn/mISDN/socket.c +++ b/drivers/isdn/mISDN/socket.c @@ -401,7 +401,7 @@ data_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) } static int data_sock_setsockopt(struct socket *sock, int level, int optname, - char __user *optval, unsigned int len) + sockptr_t optval, unsigned int len) { struct sock *sk = sock->sk; int err = 0, opt = 0; @@ -414,7 +414,7 @@ static int data_sock_setsockopt(struct socket *sock, int level, int optname, switch (optname) { case MISDN_TIME_STAMP: - if (get_user(opt, (int __user *)optval)) { + if (copy_from_sockptr(&opt, optval, sizeof(int))) { err = -EFAULT; break; } diff --git a/include/linux/net.h b/include/linux/net.h index 858ff1d98154..d48ff1180879 100644 --- a/include/linux/net.h +++ b/include/linux/net.h @@ -21,6 +21,7 @@ #include #include #include +#include #include @@ -162,7 +163,8 @@ struct proto_ops { int (*listen) (struct socket *sock, int len); int (*shutdown) (struct socket *sock, int flags); int (*setsockopt)(struct socket *sock, int level, - int optname, char __user *optval, unsigned int optlen); + int optname, sockptr_t optval, + unsigned int optlen); int (*getsockopt)(struct socket *sock, int level, int optname, char __user *optval, int __user *optlen); void (*show_fdinfo)(struct seq_file *m, struct socket *sock); diff --git a/include/net/inet_connection_sock.h b/include/net/inet_connection_sock.h index 157c60cca0ca..1e209ce7d1bd 100644 --- a/include/net/inet_connection_sock.h +++ b/include/net/inet_connection_sock.h @@ -16,6 +16,7 @@ #include #include #include +#include #include #include @@ -45,7 +46,7 @@ struct inet_connection_sock_af_ops { u16 net_frag_header_len; u16 sockaddr_len; int (*setsockopt)(struct sock *sk, int level, int optname, - char __user *optval, unsigned int optlen); + sockptr_t optval, unsigned int optlen); int (*getsockopt)(struct sock *sk, int level, int optname, char __user *optval, int __user *optlen); void (*addr2sockaddr)(struct sock *sk, struct sockaddr *); diff --git a/include/net/ip.h b/include/net/ip.h index d66ad3a95220..b09c48d862cc 100644 --- a/include/net/ip.h +++ b/include/net/ip.h @@ -722,7 +722,7 @@ void ip_cmsg_recv_offset(struct msghdr *msg, struct sock *sk, struct sk_buff *skb, int tlen, int offset); int ip_cmsg_send(struct sock *sk, struct msghdr *msg, struct ipcm_cookie *ipc, bool allow_ipv6); -int ip_setsockopt(struct sock *sk, int level, int optname, char __user *optval, +int ip_setsockopt(struct sock *sk, int level, int optname, sockptr_t optval, unsigned int optlen); int ip_getsockopt(struct sock *sk, int level, int optname, char __user *optval, int __user *optlen); diff --git a/include/net/ipv6.h b/include/net/ipv6.h index 4c9d89b5d732..bd1f396cc9c7 100644 --- a/include/net/ipv6.h +++ b/include/net/ipv6.h @@ -1084,8 +1084,8 @@ struct in6_addr *fl6_update_dst(struct flowi6 *fl6, * socket options (ipv6_sockglue.c) */ -int ipv6_setsockopt(struct sock *sk, int level, int optname, - char __user *optval, unsigned int optlen); +int ipv6_setsockopt(struct sock *sk, int level, int optname, sockptr_t optval, + unsigned int optlen); int ipv6_getsockopt(struct sock *sk, int level, int optname, char __user *optval, int __user *optlen); diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h index 233bbf7df5d6..b33f1aefad09 100644 --- a/include/net/sctp/structs.h +++ b/include/net/sctp/structs.h @@ -431,7 +431,7 @@ struct sctp_af { int (*setsockopt) (struct sock *sk, int level, int optname, - char __user *optval, + sockptr_t optval, unsigned int optlen); int (*getsockopt) (struct sock *sk, int level, diff --git a/include/net/sock.h b/include/net/sock.h index bfb2fe2fc368..2cc3ba667908 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -1141,7 +1141,7 @@ struct proto { void (*destroy)(struct sock *sk); void (*shutdown)(struct sock *sk, int how); int (*setsockopt)(struct sock *sk, int level, - int optname, char __user *optval, + int optname, sockptr_t optval, unsigned int optlen); int (*getsockopt)(struct sock *sk, int level, int optname, char __user *optval, @@ -1734,7 +1734,7 @@ int sock_common_getsockopt(struct socket *sock, int level, int optname, int sock_common_recvmsg(struct socket *sock, struct msghdr *msg, size_t size, int flags); int sock_common_setsockopt(struct socket *sock, int level, int optname, - char __user *optval, unsigned int optlen); + sockptr_t optval, unsigned int optlen); void sk_common_release(struct sock *sk); diff --git a/include/net/tcp.h b/include/net/tcp.h index e3c8e1d82021..e0c35d56091f 100644 --- a/include/net/tcp.h +++ b/include/net/tcp.h @@ -399,8 +399,8 @@ __poll_t tcp_poll(struct file *file, struct socket *sock, struct poll_table_struct *wait); 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 tcp_setsockopt(struct sock *sk, int level, int optname, sockptr_t 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/atm/common.c b/net/atm/common.c index 9b28f1fb3c69..84367b844b14 100644 --- a/net/atm/common.c +++ b/net/atm/common.c @@ -745,7 +745,7 @@ static int check_qos(const struct atm_qos *qos) } int vcc_setsockopt(struct socket *sock, int level, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { struct atm_vcc *vcc; unsigned long value; @@ -760,7 +760,7 @@ int vcc_setsockopt(struct socket *sock, int level, int optname, { struct atm_qos qos; - if (copy_from_user(&qos, optval, sizeof(qos))) + if (copy_from_sockptr(&qos, optval, sizeof(qos))) return -EFAULT; error = check_qos(&qos); if (error) @@ -774,7 +774,7 @@ int vcc_setsockopt(struct socket *sock, int level, int optname, return 0; } case SO_SETCLP: - if (get_user(value, (unsigned long __user *)optval)) + if (copy_from_sockptr(&value, optval, sizeof(value))) return -EFAULT; if (value) vcc->atm_options |= ATM_ATMOPT_CLP; diff --git a/net/atm/common.h b/net/atm/common.h index 5850649068bb..a1e56e8de698 100644 --- a/net/atm/common.h +++ b/net/atm/common.h @@ -21,7 +21,7 @@ __poll_t vcc_poll(struct file *file, struct socket *sock, poll_table *wait); int vcc_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg); int vcc_compat_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg); int vcc_setsockopt(struct socket *sock, int level, int optname, - char __user *optval, unsigned int optlen); + sockptr_t optval, unsigned int optlen); int vcc_getsockopt(struct socket *sock, int level, int optname, char __user *optval, int __user *optlen); void vcc_process_recv_queue(struct atm_vcc *vcc); diff --git a/net/atm/pvc.c b/net/atm/pvc.c index 02bd2a436bdf..53e7d3f39e26 100644 --- a/net/atm/pvc.c +++ b/net/atm/pvc.c @@ -63,7 +63,7 @@ static int pvc_connect(struct socket *sock, struct sockaddr *sockaddr, } static int pvc_setsockopt(struct socket *sock, int level, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { struct sock *sk = sock->sk; int error; diff --git a/net/atm/svc.c b/net/atm/svc.c index ba144d035e3d..4a02bcaad279 100644 --- a/net/atm/svc.c +++ b/net/atm/svc.c @@ -451,7 +451,7 @@ int svc_change_qos(struct atm_vcc *vcc, struct atm_qos *qos) } static int svc_setsockopt(struct socket *sock, int level, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { struct sock *sk = sock->sk; struct atm_vcc *vcc = ATM_SD(sock); @@ -464,7 +464,7 @@ static int svc_setsockopt(struct socket *sock, int level, int optname, error = -EINVAL; goto out; } - if (copy_from_user(&vcc->sap, optval, optlen)) { + if (copy_from_sockptr(&vcc->sap, optval, optlen)) { error = -EFAULT; goto out; } @@ -475,7 +475,7 @@ static int svc_setsockopt(struct socket *sock, int level, int optname, error = -EINVAL; goto out; } - if (get_user(value, (int __user *)optval)) { + if (copy_from_sockptr(&value, optval, sizeof(int))) { error = -EFAULT; goto out; } diff --git a/net/ax25/af_ax25.c b/net/ax25/af_ax25.c index fd91cd34f25e..17bf31a89692 100644 --- a/net/ax25/af_ax25.c +++ b/net/ax25/af_ax25.c @@ -528,7 +528,7 @@ ax25_cb *ax25_create_cb(void) */ static int ax25_setsockopt(struct socket *sock, int level, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { struct sock *sk = sock->sk; ax25_cb *ax25; @@ -543,7 +543,7 @@ static int ax25_setsockopt(struct socket *sock, int level, int optname, if (optlen < sizeof(unsigned int)) return -EINVAL; - if (get_user(opt, (unsigned int __user *)optval)) + if (copy_from_sockptr(&opt, optval, sizeof(unsigned int))) return -EFAULT; lock_sock(sk); @@ -640,7 +640,7 @@ static int ax25_setsockopt(struct socket *sock, int level, int optname, memset(devname, 0, sizeof(devname)); - if (copy_from_user(devname, optval, optlen)) { + if (copy_from_sockptr(devname, optval, optlen)) { res = -EFAULT; break; } diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c index caf38a8ea6a8..d5eff27d5b1e 100644 --- a/net/bluetooth/hci_sock.c +++ b/net/bluetooth/hci_sock.c @@ -1842,7 +1842,7 @@ drop: } static int hci_sock_setsockopt(struct socket *sock, int level, int optname, - char __user *optval, unsigned int len) + sockptr_t optval, unsigned int len) { struct hci_ufilter uf = { .opcode = 0 }; struct sock *sk = sock->sk; @@ -1862,7 +1862,7 @@ static int hci_sock_setsockopt(struct socket *sock, int level, int optname, switch (optname) { case HCI_DATA_DIR: - if (get_user(opt, (int __user *)optval)) { + if (copy_from_sockptr(&opt, optval, sizeof(opt))) { err = -EFAULT; break; } @@ -1874,7 +1874,7 @@ static int hci_sock_setsockopt(struct socket *sock, int level, int optname, break; case HCI_TIME_STAMP: - if (get_user(opt, (int __user *)optval)) { + if (copy_from_sockptr(&opt, optval, sizeof(opt))) { err = -EFAULT; break; } @@ -1896,7 +1896,7 @@ static int hci_sock_setsockopt(struct socket *sock, int level, int optname, } len = min_t(unsigned int, len, sizeof(uf)); - if (copy_from_user(&uf, optval, len)) { + if (copy_from_sockptr(&uf, optval, len)) { err = -EFAULT; break; } diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c index a995d2c51fa7..a3d104123f38 100644 --- a/net/bluetooth/l2cap_sock.c +++ b/net/bluetooth/l2cap_sock.c @@ -703,7 +703,7 @@ static bool l2cap_valid_mtu(struct l2cap_chan *chan, u16 mtu) } static int l2cap_sock_setsockopt_old(struct socket *sock, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { struct sock *sk = sock->sk; struct l2cap_chan *chan = l2cap_pi(sk)->chan; @@ -736,7 +736,7 @@ static int l2cap_sock_setsockopt_old(struct socket *sock, int optname, opts.txwin_size = chan->tx_win; len = min_t(unsigned int, sizeof(opts), optlen); - if (copy_from_user((char *) &opts, optval, len)) { + if (copy_from_sockptr(&opts, optval, len)) { err = -EFAULT; break; } @@ -782,7 +782,7 @@ static int l2cap_sock_setsockopt_old(struct socket *sock, int optname, break; case L2CAP_LM: - if (get_user(opt, (u32 __user *) optval)) { + if (copy_from_sockptr(&opt, optval, sizeof(u32))) { err = -EFAULT; break; } @@ -859,7 +859,7 @@ static int l2cap_set_mode(struct l2cap_chan *chan, u8 mode) } static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { struct sock *sk = sock->sk; struct l2cap_chan *chan = l2cap_pi(sk)->chan; @@ -891,7 +891,7 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname, sec.level = BT_SECURITY_LOW; len = min_t(unsigned int, sizeof(sec), optlen); - if (copy_from_user((char *) &sec, optval, len)) { + if (copy_from_sockptr(&sec, optval, len)) { err = -EFAULT; break; } @@ -939,7 +939,7 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname, break; } - if (get_user(opt, (u32 __user *) optval)) { + if (copy_from_sockptr(&opt, optval, sizeof(u32))) { err = -EFAULT; break; } @@ -954,7 +954,7 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname, break; case BT_FLUSHABLE: - if (get_user(opt, (u32 __user *) optval)) { + if (copy_from_sockptr(&opt, optval, sizeof(u32))) { err = -EFAULT; break; } @@ -990,7 +990,7 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname, pwr.force_active = BT_POWER_FORCE_ACTIVE_ON; len = min_t(unsigned int, sizeof(pwr), optlen); - if (copy_from_user((char *) &pwr, optval, len)) { + if (copy_from_sockptr(&pwr, optval, len)) { err = -EFAULT; break; } @@ -1002,7 +1002,7 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname, break; case BT_CHANNEL_POLICY: - if (get_user(opt, (u32 __user *) optval)) { + if (copy_from_sockptr(&opt, optval, sizeof(u32))) { err = -EFAULT; break; } @@ -1050,7 +1050,7 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname, break; } - if (get_user(opt, (u16 __user *) optval)) { + if (copy_from_sockptr(&opt, optval, sizeof(u16))) { err = -EFAULT; break; } @@ -1081,7 +1081,7 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname, break; } - if (get_user(opt, (u8 __user *) optval)) { + if (copy_from_sockptr(&opt, optval, sizeof(u8))) { err = -EFAULT; break; } diff --git a/net/bluetooth/rfcomm/sock.c b/net/bluetooth/rfcomm/sock.c index df14eebe80da..dba4ea0e1b0d 100644 --- a/net/bluetooth/rfcomm/sock.c +++ b/net/bluetooth/rfcomm/sock.c @@ -644,7 +644,8 @@ static int rfcomm_sock_recvmsg(struct socket *sock, struct msghdr *msg, return len; } -static int rfcomm_sock_setsockopt_old(struct socket *sock, int optname, char __user *optval, unsigned int optlen) +static int rfcomm_sock_setsockopt_old(struct socket *sock, int optname, + sockptr_t optval, unsigned int optlen) { struct sock *sk = sock->sk; int err = 0; @@ -656,7 +657,7 @@ static int rfcomm_sock_setsockopt_old(struct socket *sock, int optname, char __u switch (optname) { case RFCOMM_LM: - if (get_user(opt, (u32 __user *) optval)) { + if (copy_from_sockptr(&opt, optval, sizeof(u32))) { err = -EFAULT; break; } @@ -685,7 +686,8 @@ static int rfcomm_sock_setsockopt_old(struct socket *sock, int optname, char __u return err; } -static int rfcomm_sock_setsockopt(struct socket *sock, int level, int optname, char __user *optval, unsigned int optlen) +static int rfcomm_sock_setsockopt(struct socket *sock, int level, int optname, + sockptr_t optval, unsigned int optlen) { struct sock *sk = sock->sk; struct bt_security sec; @@ -713,7 +715,7 @@ static int rfcomm_sock_setsockopt(struct socket *sock, int level, int optname, c sec.level = BT_SECURITY_LOW; len = min_t(unsigned int, sizeof(sec), optlen); - if (copy_from_user((char *) &sec, optval, len)) { + if (copy_from_sockptr(&sec, optval, len)) { err = -EFAULT; break; } @@ -732,7 +734,7 @@ static int rfcomm_sock_setsockopt(struct socket *sock, int level, int optname, c break; } - if (get_user(opt, (u32 __user *) optval)) { + if (copy_from_sockptr(&opt, optval, sizeof(u32))) { err = -EFAULT; break; } diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c index c8c3d38cdc7b..37260baf7150 100644 --- a/net/bluetooth/sco.c +++ b/net/bluetooth/sco.c @@ -791,7 +791,7 @@ static int sco_sock_recvmsg(struct socket *sock, struct msghdr *msg, } static int sco_sock_setsockopt(struct socket *sock, int level, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { struct sock *sk = sock->sk; int len, err = 0; @@ -810,7 +810,7 @@ static int sco_sock_setsockopt(struct socket *sock, int level, int optname, break; } - if (get_user(opt, (u32 __user *) optval)) { + if (copy_from_sockptr(&opt, optval, sizeof(u32))) { err = -EFAULT; break; } @@ -831,7 +831,7 @@ static int sco_sock_setsockopt(struct socket *sock, int level, int optname, voice.setting = sco_pi(sk)->setting; len = min_t(unsigned int, sizeof(voice), optlen); - if (copy_from_user((char *)&voice, optval, len)) { + if (copy_from_sockptr(&voice, optval, len)) { err = -EFAULT; break; } diff --git a/net/caif/caif_socket.c b/net/caif/caif_socket.c index b94ecd931002..3ad0a1df6712 100644 --- a/net/caif/caif_socket.c +++ b/net/caif/caif_socket.c @@ -669,8 +669,8 @@ out_err: return sent ? : err; } -static int setsockopt(struct socket *sock, - int lvl, int opt, char __user *ov, unsigned int ol) +static int setsockopt(struct socket *sock, int lvl, int opt, sockptr_t ov, + unsigned int ol) { struct sock *sk = sock->sk; struct caifsock *cf_sk = container_of(sk, struct caifsock, sk); @@ -685,7 +685,7 @@ static int setsockopt(struct socket *sock, return -EINVAL; if (lvl != SOL_CAIF) goto bad_sol; - if (copy_from_user(&linksel, ov, sizeof(int))) + if (copy_from_sockptr(&linksel, ov, sizeof(int))) return -EINVAL; lock_sock(&(cf_sk->sk)); cf_sk->conn_req.link_selector = linksel; @@ -699,7 +699,7 @@ static int setsockopt(struct socket *sock, return -ENOPROTOOPT; lock_sock(&(cf_sk->sk)); if (ol > sizeof(cf_sk->conn_req.param.data) || - copy_from_user(&cf_sk->conn_req.param.data, ov, ol)) { + copy_from_sockptr(&cf_sk->conn_req.param.data, ov, ol)) { release_sock(&cf_sk->sk); return -EINVAL; } diff --git a/net/can/j1939/socket.c b/net/can/j1939/socket.c index f7587428febd..78ff9b3f1d40 100644 --- a/net/can/j1939/socket.c +++ b/net/can/j1939/socket.c @@ -627,14 +627,14 @@ static int j1939_sk_release(struct socket *sock) return 0; } -static int j1939_sk_setsockopt_flag(struct j1939_sock *jsk, char __user *optval, +static int j1939_sk_setsockopt_flag(struct j1939_sock *jsk, sockptr_t optval, unsigned int optlen, int flag) { int tmp; if (optlen != sizeof(tmp)) return -EINVAL; - if (copy_from_user(&tmp, optval, optlen)) + if (copy_from_sockptr(&tmp, optval, optlen)) return -EFAULT; lock_sock(&jsk->sk); if (tmp) @@ -646,7 +646,7 @@ static int j1939_sk_setsockopt_flag(struct j1939_sock *jsk, char __user *optval, } static int j1939_sk_setsockopt(struct socket *sock, int level, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { struct sock *sk = sock->sk; struct j1939_sock *jsk = j1939_sk(sk); @@ -658,7 +658,7 @@ static int j1939_sk_setsockopt(struct socket *sock, int level, int optname, switch (optname) { case SO_J1939_FILTER: - if (optval) { + if (!sockptr_is_null(optval)) { struct j1939_filter *f; int c; @@ -670,7 +670,7 @@ static int j1939_sk_setsockopt(struct socket *sock, int level, int optname, return -EINVAL; count = optlen / sizeof(*filters); - filters = memdup_user(optval, optlen); + filters = memdup_sockptr(optval, optlen); if (IS_ERR(filters)) return PTR_ERR(filters); @@ -703,7 +703,7 @@ static int j1939_sk_setsockopt(struct socket *sock, int level, int optname, case SO_J1939_SEND_PRIO: if (optlen != sizeof(tmp)) return -EINVAL; - if (copy_from_user(&tmp, optval, optlen)) + if (copy_from_sockptr(&tmp, optval, optlen)) return -EFAULT; if (tmp < 0 || tmp > 7) return -EDOM; diff --git a/net/can/raw.c b/net/can/raw.c index 59c039d73c6d..94a9405658dc 100644 --- a/net/can/raw.c +++ b/net/can/raw.c @@ -485,7 +485,7 @@ static int raw_getname(struct socket *sock, struct sockaddr *uaddr, } static int raw_setsockopt(struct socket *sock, int level, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { struct sock *sk = sock->sk; struct raw_sock *ro = raw_sk(sk); @@ -511,11 +511,11 @@ static int raw_setsockopt(struct socket *sock, int level, int optname, if (count > 1) { /* filter does not fit into dfilter => alloc space */ - filter = memdup_user(optval, optlen); + filter = memdup_sockptr(optval, optlen); if (IS_ERR(filter)) return PTR_ERR(filter); } else if (count == 1) { - if (copy_from_user(&sfilter, optval, sizeof(sfilter))) + if (copy_from_sockptr(&sfilter, optval, sizeof(sfilter))) return -EFAULT; } @@ -568,7 +568,7 @@ static int raw_setsockopt(struct socket *sock, int level, int optname, if (optlen != sizeof(err_mask)) return -EINVAL; - if (copy_from_user(&err_mask, optval, optlen)) + if (copy_from_sockptr(&err_mask, optval, optlen)) return -EFAULT; err_mask &= CAN_ERR_MASK; @@ -607,7 +607,7 @@ static int raw_setsockopt(struct socket *sock, int level, int optname, if (optlen != sizeof(ro->loopback)) return -EINVAL; - if (copy_from_user(&ro->loopback, optval, optlen)) + if (copy_from_sockptr(&ro->loopback, optval, optlen)) return -EFAULT; break; @@ -616,7 +616,7 @@ static int raw_setsockopt(struct socket *sock, int level, int optname, if (optlen != sizeof(ro->recv_own_msgs)) return -EINVAL; - if (copy_from_user(&ro->recv_own_msgs, optval, optlen)) + if (copy_from_sockptr(&ro->recv_own_msgs, optval, optlen)) return -EFAULT; break; @@ -625,7 +625,7 @@ static int raw_setsockopt(struct socket *sock, int level, int optname, if (optlen != sizeof(ro->fd_frames)) return -EINVAL; - if (copy_from_user(&ro->fd_frames, optval, optlen)) + if (copy_from_sockptr(&ro->fd_frames, optval, optlen)) return -EFAULT; break; @@ -634,7 +634,7 @@ static int raw_setsockopt(struct socket *sock, int level, int optname, if (optlen != sizeof(ro->join_filters)) return -EINVAL; - if (copy_from_user(&ro->join_filters, optval, optlen)) + if (copy_from_sockptr(&ro->join_filters, optval, optlen)) return -EFAULT; break; diff --git a/net/core/sock.c b/net/core/sock.c index 1444d7d53ba2..2c5dd1397775 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -3211,7 +3211,7 @@ EXPORT_SYMBOL(sock_common_recvmsg); * Set socket options on an inet socket. */ int sock_common_setsockopt(struct socket *sock, int level, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { struct sock *sk = sock->sk; diff --git a/net/dccp/dccp.h b/net/dccp/dccp.h index 434eea91b767..9cc9d1ee6cdb 100644 --- a/net/dccp/dccp.h +++ b/net/dccp/dccp.h @@ -295,7 +295,7 @@ int dccp_disconnect(struct sock *sk, int flags); 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); + sockptr_t optval, unsigned int optlen); 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/proto.c b/net/dccp/proto.c index 9e453611107f..2e9e8449698f 100644 --- a/net/dccp/proto.c +++ b/net/dccp/proto.c @@ -411,7 +411,7 @@ out: EXPORT_SYMBOL_GPL(dccp_ioctl); static int dccp_setsockopt_service(struct sock *sk, const __be32 service, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { struct dccp_sock *dp = dccp_sk(sk); struct dccp_service_list *sl = NULL; @@ -426,9 +426,9 @@ static int dccp_setsockopt_service(struct sock *sk, const __be32 service, return -ENOMEM; sl->dccpsl_nr = optlen / sizeof(u32) - 1; - if (copy_from_user(sl->dccpsl_list, - optval + sizeof(service), - optlen - sizeof(service)) || + sockptr_advance(optval, sizeof(service)); + if (copy_from_sockptr(sl->dccpsl_list, optval, + optlen - sizeof(service)) || dccp_list_has_service(sl, DCCP_SERVICE_INVALID_VALUE)) { kfree(sl); return -EFAULT; @@ -482,7 +482,7 @@ static int dccp_setsockopt_cscov(struct sock *sk, int cscov, bool rx) } static int dccp_setsockopt_ccid(struct sock *sk, int type, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { u8 *val; int rc = 0; @@ -490,7 +490,7 @@ static int dccp_setsockopt_ccid(struct sock *sk, int type, if (optlen < 1 || optlen > DCCP_FEAT_MAX_SP_VALS) return -EINVAL; - val = memdup_user(optval, optlen); + val = memdup_sockptr(optval, optlen); if (IS_ERR(val)) return PTR_ERR(val); @@ -507,7 +507,7 @@ static int dccp_setsockopt_ccid(struct sock *sk, int type, } static int do_dccp_setsockopt(struct sock *sk, int level, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { struct dccp_sock *dp = dccp_sk(sk); int val, err = 0; @@ -529,7 +529,7 @@ static int do_dccp_setsockopt(struct sock *sk, int level, int optname, if (optlen < (int)sizeof(int)) return -EINVAL; - if (get_user(val, (int __user *)optval)) + if (copy_from_sockptr(&val, optval, sizeof(int))) return -EFAULT; if (optname == DCCP_SOCKOPT_SERVICE) @@ -572,8 +572,8 @@ static int do_dccp_setsockopt(struct sock *sk, int level, int optname, return err; } -int dccp_setsockopt(struct sock *sk, int level, int optname, - char __user *optval, unsigned int optlen) +int dccp_setsockopt(struct sock *sk, int level, int optname, sockptr_t optval, + unsigned int optlen) { if (level != SOL_DCCP) return inet_csk(sk)->icsk_af_ops->setsockopt(sk, level, diff --git a/net/decnet/af_decnet.c b/net/decnet/af_decnet.c index 7d51ab608fb3..3b53d766789d 100644 --- a/net/decnet/af_decnet.c +++ b/net/decnet/af_decnet.c @@ -150,7 +150,8 @@ static struct hlist_head dn_sk_hash[DN_SK_HASH_SIZE]; static struct hlist_head dn_wild_sk; static atomic_long_t decnet_memory_allocated; -static int __dn_setsockopt(struct socket *sock, int level, int optname, char __user *optval, unsigned int optlen, int flags); +static int __dn_setsockopt(struct socket *sock, int level, int optname, + sockptr_t optval, unsigned int optlen, int flags); static int __dn_getsockopt(struct socket *sock, int level, int optname, char __user *optval, int __user *optlen, int flags); static struct hlist_head *dn_find_list(struct sock *sk) @@ -1320,7 +1321,8 @@ out: return err; } -static int dn_setsockopt(struct socket *sock, int level, int optname, char __user *optval, unsigned int optlen) +static int dn_setsockopt(struct socket *sock, int level, int optname, + sockptr_t optval, unsigned int optlen) { struct sock *sk = sock->sk; int err; @@ -1332,14 +1334,14 @@ static int dn_setsockopt(struct socket *sock, int level, int optname, char __use /* we need to exclude all possible ENOPROTOOPTs except default case */ if (err == -ENOPROTOOPT && optname != DSO_LINKINFO && optname != DSO_STREAM && optname != DSO_SEQPACKET) - err = nf_setsockopt(sk, PF_DECnet, optname, - USER_SOCKPTR(optval), optlen); + err = nf_setsockopt(sk, PF_DECnet, optname, optval, optlen); #endif return err; } -static int __dn_setsockopt(struct socket *sock, int level,int optname, char __user *optval, unsigned int optlen, int flags) +static int __dn_setsockopt(struct socket *sock, int level, int optname, + sockptr_t optval, unsigned int optlen, int flags) { struct sock *sk = sock->sk; struct dn_scp *scp = DN_SK(sk); @@ -1355,13 +1357,13 @@ static int __dn_setsockopt(struct socket *sock, int level,int optname, char __us } u; int err; - if (optlen && !optval) + if (optlen && sockptr_is_null(optval)) return -EINVAL; if (optlen > sizeof(u)) return -EINVAL; - if (copy_from_user(&u, optval, optlen)) + if (copy_from_sockptr(&u, optval, optlen)) return -EFAULT; switch (optname) { diff --git a/net/ieee802154/socket.c b/net/ieee802154/socket.c index 94ae9662133e..a45a0401adc5 100644 --- a/net/ieee802154/socket.c +++ b/net/ieee802154/socket.c @@ -382,7 +382,7 @@ static int raw_getsockopt(struct sock *sk, int level, int optname, } static int raw_setsockopt(struct sock *sk, int level, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { return -EOPNOTSUPP; } @@ -872,7 +872,7 @@ static int dgram_getsockopt(struct sock *sk, int level, int optname, } static int dgram_setsockopt(struct sock *sk, int level, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { struct dgram_sock *ro = dgram_sk(sk); struct net *net = sock_net(sk); @@ -882,7 +882,7 @@ static int dgram_setsockopt(struct sock *sk, int level, int optname, if (optlen < sizeof(int)) return -EINVAL; - if (get_user(val, (int __user *)optval)) + if (copy_from_sockptr(&val, optval, sizeof(int))) return -EFAULT; lock_sock(sk); diff --git a/net/ipv4/ip_sockglue.c b/net/ipv4/ip_sockglue.c index f7f1507b89fe..8dc027e54c5b 100644 --- a/net/ipv4/ip_sockglue.c +++ b/net/ipv4/ip_sockglue.c @@ -1401,21 +1401,19 @@ void ipv4_pktinfo_prepare(const struct sock *sk, struct sk_buff *skb) skb_dst_drop(skb); } -int ip_setsockopt(struct sock *sk, int level, - int optname, char __user *optval, unsigned int optlen) +int ip_setsockopt(struct sock *sk, int level, int optname, sockptr_t optval, + unsigned int optlen) { int err; if (level != SOL_IP) return -ENOPROTOOPT; - err = do_ip_setsockopt(sk, level, optname, USER_SOCKPTR(optval), - optlen); + err = do_ip_setsockopt(sk, level, optname, optval, optlen); #if IS_ENABLED(CONFIG_BPFILTER_UMH) if (optname >= BPFILTER_IPT_SO_SET_REPLACE && optname < BPFILTER_IPT_SET_MAX) - err = bpfilter_ip_set_sockopt(sk, optname, USER_SOCKPTR(optval), - optlen); + err = bpfilter_ip_set_sockopt(sk, optname, optval, optlen); #endif #ifdef CONFIG_NETFILTER /* we need to exclude all possible ENOPROTOOPTs except default case */ @@ -1423,8 +1421,7 @@ int ip_setsockopt(struct sock *sk, int level, optname != IP_IPSEC_POLICY && optname != IP_XFRM_POLICY && !ip_mroute_opt(optname)) - err = nf_setsockopt(sk, PF_INET, optname, USER_SOCKPTR(optval), - optlen); + err = nf_setsockopt(sk, PF_INET, optname, optval, optlen); #endif return err; } diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c index 2a57d633b31e..6fd4330287c2 100644 --- a/net/ipv4/raw.c +++ b/net/ipv4/raw.c @@ -809,11 +809,11 @@ static int raw_sk_init(struct sock *sk) return 0; } -static int raw_seticmpfilter(struct sock *sk, char __user *optval, int optlen) +static int raw_seticmpfilter(struct sock *sk, sockptr_t optval, int optlen) { if (optlen > sizeof(struct icmp_filter)) optlen = sizeof(struct icmp_filter); - if (copy_from_user(&raw_sk(sk)->filter, optval, optlen)) + if (copy_from_sockptr(&raw_sk(sk)->filter, optval, optlen)) return -EFAULT; return 0; } @@ -838,7 +838,7 @@ out: return ret; } static int do_raw_setsockopt(struct sock *sk, int level, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { if (optname == ICMP_FILTER) { if (inet_sk(sk)->inet_num != IPPROTO_ICMP) @@ -850,7 +850,7 @@ static int do_raw_setsockopt(struct sock *sk, int level, int optname, } static int raw_setsockopt(struct sock *sk, int level, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { if (level != SOL_RAW) return ip_setsockopt(sk, level, optname, optval, optlen); diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index 71cbc61c335f..27de9380ed14 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -3323,7 +3323,7 @@ static int do_tcp_setsockopt(struct sock *sk, int level, int optname, return err; } -int tcp_setsockopt(struct sock *sk, int level, int optname, char __user *optval, +int tcp_setsockopt(struct sock *sk, int level, int optname, sockptr_t optval, unsigned int optlen) { const struct inet_connection_sock *icsk = inet_csk(sk); @@ -3331,8 +3331,7 @@ int tcp_setsockopt(struct sock *sk, int level, int optname, char __user *optval, if (level != SOL_TCP) return icsk->icsk_af_ops->setsockopt(sk, level, optname, optval, optlen); - return do_tcp_setsockopt(sk, level, optname, USER_SOCKPTR(optval), - optlen); + return do_tcp_setsockopt(sk, level, optname, optval, optlen); } EXPORT_SYMBOL(tcp_setsockopt); diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c index c6cb2d09dbc7..5a6a2f6d86b9 100644 --- a/net/ipv4/udp.c +++ b/net/ipv4/udp.c @@ -2703,12 +2703,12 @@ int udp_lib_setsockopt(struct sock *sk, int level, int optname, } EXPORT_SYMBOL(udp_lib_setsockopt); -int udp_setsockopt(struct sock *sk, int level, int optname, - char __user *optval, unsigned int optlen) +int udp_setsockopt(struct sock *sk, int level, int optname, sockptr_t optval, + unsigned int optlen) { if (level == SOL_UDP || level == SOL_UDPLITE) return udp_lib_setsockopt(sk, level, optname, - USER_SOCKPTR(optval), optlen, + optval, optlen, udp_push_pending_frames); return ip_setsockopt(sk, level, optname, optval, optlen); } diff --git a/net/ipv4/udp_impl.h b/net/ipv4/udp_impl.h index ab313702c87f..2878d8285caf 100644 --- a/net/ipv4/udp_impl.h +++ b/net/ipv4/udp_impl.h @@ -12,8 +12,8 @@ int __udp4_lib_err(struct sk_buff *, u32, struct udp_table *); int udp_v4_get_port(struct sock *sk, unsigned short snum); void udp_v4_rehash(struct sock *sk); -int udp_setsockopt(struct sock *sk, int level, int optname, - char __user *optval, unsigned int optlen); +int udp_setsockopt(struct sock *sk, int level, int optname, sockptr_t optval, + unsigned int optlen); int udp_getsockopt(struct sock *sk, int level, int optname, char __user *optval, int __user *optlen); diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c index dcd000a5a9b1..d2282f5c9760 100644 --- a/net/ipv6/ipv6_sockglue.c +++ b/net/ipv6/ipv6_sockglue.c @@ -980,8 +980,8 @@ e_inval: return -EINVAL; } -int ipv6_setsockopt(struct sock *sk, int level, int optname, - char __user *optval, unsigned int optlen) +int ipv6_setsockopt(struct sock *sk, int level, int optname, sockptr_t optval, + unsigned int optlen) { int err; @@ -991,14 +991,12 @@ int ipv6_setsockopt(struct sock *sk, int level, int optname, if (level != SOL_IPV6) return -ENOPROTOOPT; - err = do_ipv6_setsockopt(sk, level, optname, USER_SOCKPTR(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, USER_SOCKPTR(optval), - optlen); + err = nf_setsockopt(sk, PF_INET6, optname, optval, optlen); #endif return err; } diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c index 594e01ad670a..874f01cd7aec 100644 --- a/net/ipv6/raw.c +++ b/net/ipv6/raw.c @@ -972,13 +972,13 @@ do_confirm: } static int rawv6_seticmpfilter(struct sock *sk, int level, int optname, - char __user *optval, int optlen) + sockptr_t optval, int optlen) { switch (optname) { case ICMPV6_FILTER: if (optlen > sizeof(struct icmp6_filter)) optlen = sizeof(struct icmp6_filter); - if (copy_from_user(&raw6_sk(sk)->filter, optval, optlen)) + if (copy_from_sockptr(&raw6_sk(sk)->filter, optval, optlen)) return -EFAULT; return 0; default: @@ -1015,12 +1015,12 @@ static int rawv6_geticmpfilter(struct sock *sk, int level, int optname, static int do_rawv6_setsockopt(struct sock *sk, int level, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { struct raw6_sock *rp = raw6_sk(sk); int val; - if (get_user(val, (int __user *)optval)) + if (copy_from_sockptr(&val, optval, sizeof(val))) return -EFAULT; switch (optname) { @@ -1062,7 +1062,7 @@ static int do_rawv6_setsockopt(struct sock *sk, int level, int optname, } static int rawv6_setsockopt(struct sock *sk, int level, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { switch (level) { case SOL_RAW: diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c index 2df1e6c9d7cb..15818e18655d 100644 --- a/net/ipv6/udp.c +++ b/net/ipv6/udp.c @@ -1618,12 +1618,12 @@ void udpv6_destroy_sock(struct sock *sk) /* * Socket option code for UDP */ -int udpv6_setsockopt(struct sock *sk, int level, int optname, - char __user *optval, unsigned int optlen) +int udpv6_setsockopt(struct sock *sk, int level, int optname, sockptr_t optval, + unsigned int optlen) { if (level == SOL_UDP || level == SOL_UDPLITE) return udp_lib_setsockopt(sk, level, optname, - USER_SOCKPTR(optval), optlen, + optval, optlen, udp_v6_push_pending_frames); return ipv6_setsockopt(sk, level, optname, optval, optlen); } diff --git a/net/ipv6/udp_impl.h b/net/ipv6/udp_impl.h index 30dfb6f1b762..b2fcc46c1630 100644 --- a/net/ipv6/udp_impl.h +++ b/net/ipv6/udp_impl.h @@ -17,8 +17,8 @@ void udp_v6_rehash(struct sock *sk); 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); +int udpv6_setsockopt(struct sock *sk, int level, int optname, sockptr_t optval, + unsigned int optlen); 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/iucv/af_iucv.c b/net/iucv/af_iucv.c index ee0add15497d..6ee9851ac7c6 100644 --- a/net/iucv/af_iucv.c +++ b/net/iucv/af_iucv.c @@ -1494,7 +1494,7 @@ static int iucv_sock_release(struct socket *sock) /* getsockopt and setsockopt */ static int iucv_sock_setsockopt(struct socket *sock, int level, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { struct sock *sk = sock->sk; struct iucv_sock *iucv = iucv_sk(sk); @@ -1507,7 +1507,7 @@ static int iucv_sock_setsockopt(struct socket *sock, int level, int optname, if (optlen < sizeof(int)) return -EINVAL; - if (get_user(val, (int __user *) optval)) + if (copy_from_sockptr(&val, optval, sizeof(int))) return -EFAULT; rc = 0; diff --git a/net/kcm/kcmsock.c b/net/kcm/kcmsock.c index 56fac24a627a..56dad9565bc9 100644 --- a/net/kcm/kcmsock.c +++ b/net/kcm/kcmsock.c @@ -1265,7 +1265,7 @@ static void kcm_recv_enable(struct kcm_sock *kcm) } static int kcm_setsockopt(struct socket *sock, int level, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { struct kcm_sock *kcm = kcm_sk(sock->sk); int val, valbool; @@ -1277,8 +1277,8 @@ static int kcm_setsockopt(struct socket *sock, int level, int optname, if (optlen < sizeof(int)) return -EINVAL; - if (get_user(val, (int __user *)optval)) - return -EINVAL; + if (copy_from_sockptr(&val, optval, sizeof(int))) + return -EFAULT; valbool = val ? 1 : 0; diff --git a/net/l2tp/l2tp_ppp.c b/net/l2tp/l2tp_ppp.c index e58fe7e3b884..4389df66af35 100644 --- a/net/l2tp/l2tp_ppp.c +++ b/net/l2tp/l2tp_ppp.c @@ -1242,7 +1242,7 @@ static int pppol2tp_session_setsockopt(struct sock *sk, * session or the special tunnel type. */ static int pppol2tp_setsockopt(struct socket *sock, int level, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { struct sock *sk = sock->sk; struct l2tp_session *session; @@ -1256,7 +1256,7 @@ static int pppol2tp_setsockopt(struct socket *sock, int level, int optname, if (optlen < sizeof(int)) return -EINVAL; - if (get_user(val, (int __user *)optval)) + if (copy_from_sockptr(&val, optval, sizeof(int))) return -EFAULT; err = -ENOTCONN; diff --git a/net/llc/af_llc.c b/net/llc/af_llc.c index 6140a3e46c26..7180979114e4 100644 --- a/net/llc/af_llc.c +++ b/net/llc/af_llc.c @@ -1053,7 +1053,7 @@ static int llc_ui_ioctl(struct socket *sock, unsigned int cmd, * Set various connection specific parameters. */ static int llc_ui_setsockopt(struct socket *sock, int level, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { struct sock *sk = sock->sk; struct llc_sock *llc = llc_sk(sk); @@ -1063,7 +1063,7 @@ static int llc_ui_setsockopt(struct socket *sock, int level, int optname, lock_sock(sk); if (unlikely(level != SOL_LLC || optlen != sizeof(int))) goto out; - rc = get_user(opt, (int __user *)optval); + rc = copy_from_sockptr(&opt, optval, sizeof(opt)); if (rc) goto out; rc = -EINVAL; diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c index 7246847efa90..2891ae8a1028 100644 --- a/net/mptcp/protocol.c +++ b/net/mptcp/protocol.c @@ -1632,7 +1632,7 @@ static void mptcp_destroy(struct sock *sk) } static int mptcp_setsockopt_sol_socket(struct mptcp_sock *msk, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { struct sock *sk = (struct sock *)msk; struct socket *ssock; @@ -1648,8 +1648,7 @@ static int mptcp_setsockopt_sol_socket(struct mptcp_sock *msk, int optname, return -EINVAL; } - ret = sock_setsockopt(ssock, SOL_SOCKET, optname, - USER_SOCKPTR(optval), optlen); + ret = sock_setsockopt(ssock, SOL_SOCKET, optname, optval, optlen); if (ret == 0) { if (optname == SO_REUSEPORT) sk->sk_reuseport = ssock->sk->sk_reuseport; @@ -1660,12 +1659,11 @@ static int mptcp_setsockopt_sol_socket(struct mptcp_sock *msk, int optname, return ret; } - return sock_setsockopt(sk->sk_socket, SOL_SOCKET, optname, - USER_SOCKPTR(optval), optlen); + return sock_setsockopt(sk->sk_socket, SOL_SOCKET, optname, optval, optlen); } static int mptcp_setsockopt_v6(struct mptcp_sock *msk, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { struct sock *sk = (struct sock *)msk; int ret = -EOPNOTSUPP; @@ -1692,7 +1690,7 @@ static int mptcp_setsockopt_v6(struct mptcp_sock *msk, int optname, } static int mptcp_setsockopt(struct sock *sk, int level, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { struct mptcp_sock *msk = mptcp_sk(sk); struct sock *ssk; diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c index 3cd58f0c2de4..d8921b833744 100644 --- a/net/netlink/af_netlink.c +++ b/net/netlink/af_netlink.c @@ -1621,7 +1621,7 @@ static void netlink_update_socket_mc(struct netlink_sock *nlk, } static int netlink_setsockopt(struct socket *sock, int level, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { struct sock *sk = sock->sk; struct netlink_sock *nlk = nlk_sk(sk); @@ -1632,7 +1632,7 @@ static int netlink_setsockopt(struct socket *sock, int level, int optname, return -ENOPROTOOPT; if (optlen >= sizeof(int) && - get_user(val, (unsigned int __user *)optval)) + copy_from_sockptr(&val, optval, sizeof(val))) return -EFAULT; switch (optname) { diff --git a/net/netrom/af_netrom.c b/net/netrom/af_netrom.c index f90ef6934b8f..6d16e1ab1a8a 100644 --- a/net/netrom/af_netrom.c +++ b/net/netrom/af_netrom.c @@ -294,7 +294,7 @@ void nr_destroy_socket(struct sock *sk) */ static int nr_setsockopt(struct socket *sock, int level, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { struct sock *sk = sock->sk; struct nr_sock *nr = nr_sk(sk); @@ -306,7 +306,7 @@ static int nr_setsockopt(struct socket *sock, int level, int optname, if (optlen < sizeof(unsigned int)) return -EINVAL; - if (get_user(opt, (unsigned int __user *)optval)) + if (copy_from_sockptr(&opt, optval, sizeof(unsigned int))) return -EFAULT; switch (optname) { diff --git a/net/nfc/llcp_sock.c b/net/nfc/llcp_sock.c index 6da1e2334bb6..d257ed3b732a 100644 --- a/net/nfc/llcp_sock.c +++ b/net/nfc/llcp_sock.c @@ -218,7 +218,7 @@ error: } static int nfc_llcp_setsockopt(struct socket *sock, int level, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { struct sock *sk = sock->sk; struct nfc_llcp_sock *llcp_sock = nfc_llcp_sock(sk); @@ -241,7 +241,7 @@ static int nfc_llcp_setsockopt(struct socket *sock, int level, int optname, break; } - if (get_user(opt, (u32 __user *) optval)) { + if (copy_from_sockptr(&opt, optval, sizeof(u32))) { err = -EFAULT; break; } @@ -263,7 +263,7 @@ static int nfc_llcp_setsockopt(struct socket *sock, int level, int optname, break; } - if (get_user(opt, (u32 __user *) optval)) { + if (copy_from_sockptr(&opt, optval, sizeof(u32))) { err = -EFAULT; break; } diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c index d8d4f78f78e4..0b8160d1a6e0 100644 --- a/net/packet/af_packet.c +++ b/net/packet/af_packet.c @@ -1558,7 +1558,7 @@ static int fanout_set_data_cbpf(struct packet_sock *po, sockptr_t data, return 0; } -static int fanout_set_data_ebpf(struct packet_sock *po, char __user *data, +static int fanout_set_data_ebpf(struct packet_sock *po, sockptr_t data, unsigned int len) { struct bpf_prog *new; @@ -1568,7 +1568,7 @@ static int fanout_set_data_ebpf(struct packet_sock *po, char __user *data, return -EPERM; if (len != sizeof(fd)) return -EINVAL; - if (copy_from_user(&fd, data, len)) + if (copy_from_sockptr(&fd, data, len)) return -EFAULT; new = bpf_prog_get_type(fd, BPF_PROG_TYPE_SOCKET_FILTER); @@ -1579,12 +1579,12 @@ static int fanout_set_data_ebpf(struct packet_sock *po, char __user *data, return 0; } -static int fanout_set_data(struct packet_sock *po, char __user *data, +static int fanout_set_data(struct packet_sock *po, sockptr_t data, unsigned int len) { switch (po->fanout->type) { case PACKET_FANOUT_CBPF: - return fanout_set_data_cbpf(po, USER_SOCKPTR(data), len); + return fanout_set_data_cbpf(po, data, len); case PACKET_FANOUT_EBPF: return fanout_set_data_ebpf(po, data, len); default: @@ -3652,7 +3652,8 @@ static void packet_flush_mclist(struct sock *sk) } static int -packet_setsockopt(struct socket *sock, int level, int optname, char __user *optval, unsigned int optlen) +packet_setsockopt(struct socket *sock, int level, int optname, sockptr_t optval, + unsigned int optlen) { struct sock *sk = sock->sk; struct packet_sock *po = pkt_sk(sk); @@ -3672,7 +3673,7 @@ packet_setsockopt(struct socket *sock, int level, int optname, char __user *optv return -EINVAL; if (len > sizeof(mreq)) len = sizeof(mreq); - if (copy_from_user(&mreq, optval, len)) + if (copy_from_sockptr(&mreq, optval, len)) return -EFAULT; if (len < (mreq.mr_alen + offsetof(struct packet_mreq, mr_address))) return -EINVAL; @@ -3703,7 +3704,7 @@ packet_setsockopt(struct socket *sock, int level, int optname, char __user *optv if (optlen < len) { ret = -EINVAL; } else { - if (copy_from_user(&req_u.req, optval, len)) + if (copy_from_sockptr(&req_u.req, optval, len)) ret = -EFAULT; else ret = packet_set_ring(sk, &req_u, 0, @@ -3718,7 +3719,7 @@ packet_setsockopt(struct socket *sock, int level, int optname, char __user *optv if (optlen != sizeof(val)) return -EINVAL; - if (copy_from_user(&val, optval, sizeof(val))) + if (copy_from_sockptr(&val, optval, sizeof(val))) return -EFAULT; pkt_sk(sk)->copy_thresh = val; @@ -3730,7 +3731,7 @@ packet_setsockopt(struct socket *sock, int level, int optname, char __user *optv if (optlen != sizeof(val)) return -EINVAL; - if (copy_from_user(&val, optval, sizeof(val))) + if (copy_from_sockptr(&val, optval, sizeof(val))) return -EFAULT; switch (val) { case TPACKET_V1: @@ -3756,7 +3757,7 @@ packet_setsockopt(struct socket *sock, int level, int optname, char __user *optv if (optlen != sizeof(val)) return -EINVAL; - if (copy_from_user(&val, optval, sizeof(val))) + if (copy_from_sockptr(&val, optval, sizeof(val))) return -EFAULT; if (val > INT_MAX) return -EINVAL; @@ -3776,7 +3777,7 @@ packet_setsockopt(struct socket *sock, int level, int optname, char __user *optv if (optlen != sizeof(val)) return -EINVAL; - if (copy_from_user(&val, optval, sizeof(val))) + if (copy_from_sockptr(&val, optval, sizeof(val))) return -EFAULT; lock_sock(sk); @@ -3795,7 +3796,7 @@ packet_setsockopt(struct socket *sock, int level, int optname, char __user *optv if (optlen < sizeof(val)) return -EINVAL; - if (copy_from_user(&val, optval, sizeof(val))) + if (copy_from_sockptr(&val, optval, sizeof(val))) return -EFAULT; lock_sock(sk); @@ -3809,7 +3810,7 @@ packet_setsockopt(struct socket *sock, int level, int optname, char __user *optv if (optlen < sizeof(val)) return -EINVAL; - if (copy_from_user(&val, optval, sizeof(val))) + if (copy_from_sockptr(&val, optval, sizeof(val))) return -EFAULT; lock_sock(sk); @@ -3825,7 +3826,7 @@ packet_setsockopt(struct socket *sock, int level, int optname, char __user *optv return -EINVAL; if (optlen < sizeof(val)) return -EINVAL; - if (copy_from_user(&val, optval, sizeof(val))) + if (copy_from_sockptr(&val, optval, sizeof(val))) return -EFAULT; lock_sock(sk); @@ -3844,7 +3845,7 @@ packet_setsockopt(struct socket *sock, int level, int optname, char __user *optv if (optlen != sizeof(val)) return -EINVAL; - if (copy_from_user(&val, optval, sizeof(val))) + if (copy_from_sockptr(&val, optval, sizeof(val))) return -EFAULT; po->tp_tstamp = val; @@ -3856,7 +3857,7 @@ packet_setsockopt(struct socket *sock, int level, int optname, char __user *optv if (optlen != sizeof(val)) return -EINVAL; - if (copy_from_user(&val, optval, sizeof(val))) + if (copy_from_sockptr(&val, optval, sizeof(val))) return -EFAULT; return fanout_add(sk, val & 0xffff, val >> 16); @@ -3874,7 +3875,7 @@ packet_setsockopt(struct socket *sock, int level, int optname, char __user *optv if (optlen != sizeof(val)) return -EINVAL; - if (copy_from_user(&val, optval, sizeof(val))) + if (copy_from_sockptr(&val, optval, sizeof(val))) return -EFAULT; if (val < 0 || val > 1) return -EINVAL; @@ -3888,7 +3889,7 @@ packet_setsockopt(struct socket *sock, int level, int optname, char __user *optv if (optlen != sizeof(val)) return -EINVAL; - if (copy_from_user(&val, optval, sizeof(val))) + if (copy_from_sockptr(&val, optval, sizeof(val))) return -EFAULT; lock_sock(sk); @@ -3907,7 +3908,7 @@ packet_setsockopt(struct socket *sock, int level, int optname, char __user *optv if (optlen != sizeof(val)) return -EINVAL; - if (copy_from_user(&val, optval, sizeof(val))) + if (copy_from_sockptr(&val, optval, sizeof(val))) return -EFAULT; po->xmit = val ? packet_direct_xmit : dev_queue_xmit; diff --git a/net/phonet/pep.c b/net/phonet/pep.c index 4577e43cb777..e47d09aca4af 100644 --- a/net/phonet/pep.c +++ b/net/phonet/pep.c @@ -975,7 +975,7 @@ static int pep_init(struct sock *sk) } static int pep_setsockopt(struct sock *sk, int level, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { struct pep_sock *pn = pep_sk(sk); int val = 0, err = 0; @@ -983,7 +983,7 @@ static int pep_setsockopt(struct sock *sk, int level, int optname, if (level != SOL_PNPIPE) return -ENOPROTOOPT; if (optlen >= sizeof(int)) { - if (get_user(val, (int __user *) optval)) + if (copy_from_sockptr(&val, optval, sizeof(int))) return -EFAULT; } diff --git a/net/rds/af_rds.c b/net/rds/af_rds.c index 1a5bf3fa4578..b239120dd9ca 100644 --- a/net/rds/af_rds.c +++ b/net/rds/af_rds.c @@ -290,8 +290,7 @@ static int rds_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) return 0; } -static int rds_cancel_sent_to(struct rds_sock *rs, char __user *optval, - int len) +static int rds_cancel_sent_to(struct rds_sock *rs, sockptr_t optval, int len) { struct sockaddr_in6 sin6; struct sockaddr_in sin; @@ -308,14 +307,15 @@ static int rds_cancel_sent_to(struct rds_sock *rs, char __user *optval, goto out; } else if (len < sizeof(struct sockaddr_in6)) { /* Assume IPv4 */ - if (copy_from_user(&sin, optval, sizeof(struct sockaddr_in))) { + if (copy_from_sockptr(&sin, optval, + sizeof(struct sockaddr_in))) { ret = -EFAULT; goto out; } ipv6_addr_set_v4mapped(sin.sin_addr.s_addr, &sin6.sin6_addr); sin6.sin6_port = sin.sin_port; } else { - if (copy_from_user(&sin6, optval, + if (copy_from_sockptr(&sin6, optval, sizeof(struct sockaddr_in6))) { ret = -EFAULT; goto out; @@ -327,21 +327,20 @@ out: return ret; } -static int rds_set_bool_option(unsigned char *optvar, char __user *optval, +static int rds_set_bool_option(unsigned char *optvar, sockptr_t optval, int optlen) { int value; if (optlen < sizeof(int)) return -EINVAL; - if (get_user(value, (int __user *) optval)) + if (copy_from_sockptr(&value, optval, sizeof(int))) return -EFAULT; *optvar = !!value; return 0; } -static int rds_cong_monitor(struct rds_sock *rs, char __user *optval, - int optlen) +static int rds_cong_monitor(struct rds_sock *rs, sockptr_t optval, int optlen) { int ret; @@ -358,8 +357,7 @@ static int rds_cong_monitor(struct rds_sock *rs, char __user *optval, return ret; } -static int rds_set_transport(struct rds_sock *rs, char __user *optval, - int optlen) +static int rds_set_transport(struct rds_sock *rs, sockptr_t optval, int optlen) { int t_type; @@ -369,7 +367,7 @@ static int rds_set_transport(struct rds_sock *rs, char __user *optval, if (optlen != sizeof(int)) return -EINVAL; - if (copy_from_user(&t_type, (int __user *)optval, sizeof(t_type))) + if (copy_from_sockptr(&t_type, optval, sizeof(t_type))) return -EFAULT; if (t_type < 0 || t_type >= RDS_TRANS_COUNT) @@ -380,7 +378,7 @@ static int rds_set_transport(struct rds_sock *rs, char __user *optval, return rs->rs_transport ? 0 : -ENOPROTOOPT; } -static int rds_enable_recvtstamp(struct sock *sk, char __user *optval, +static int rds_enable_recvtstamp(struct sock *sk, sockptr_t optval, int optlen, int optname) { int val, valbool; @@ -388,7 +386,7 @@ static int rds_enable_recvtstamp(struct sock *sk, char __user *optval, if (optlen != sizeof(int)) return -EFAULT; - if (get_user(val, (int __user *)optval)) + if (copy_from_sockptr(&val, optval, sizeof(int))) return -EFAULT; valbool = val ? 1 : 0; @@ -404,7 +402,7 @@ static int rds_enable_recvtstamp(struct sock *sk, char __user *optval, return 0; } -static int rds_recv_track_latency(struct rds_sock *rs, char __user *optval, +static int rds_recv_track_latency(struct rds_sock *rs, sockptr_t optval, int optlen) { struct rds_rx_trace_so trace; @@ -413,7 +411,7 @@ static int rds_recv_track_latency(struct rds_sock *rs, char __user *optval, if (optlen != sizeof(struct rds_rx_trace_so)) return -EFAULT; - if (copy_from_user(&trace, optval, sizeof(trace))) + if (copy_from_sockptr(&trace, optval, sizeof(trace))) return -EFAULT; if (trace.rx_traces > RDS_MSG_RX_DGRAM_TRACE_MAX) @@ -432,7 +430,7 @@ static int rds_recv_track_latency(struct rds_sock *rs, char __user *optval, } static int rds_setsockopt(struct socket *sock, int level, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { struct rds_sock *rs = rds_sk_to_rs(sock->sk); int ret; diff --git a/net/rds/rdma.c b/net/rds/rdma.c index a7ae11846cd7..ccdd304eae0a 100644 --- a/net/rds/rdma.c +++ b/net/rds/rdma.c @@ -353,21 +353,20 @@ out: return ret; } -int rds_get_mr(struct rds_sock *rs, char __user *optval, int optlen) +int rds_get_mr(struct rds_sock *rs, sockptr_t optval, int optlen) { struct rds_get_mr_args args; if (optlen != sizeof(struct rds_get_mr_args)) return -EINVAL; - if (copy_from_user(&args, (struct rds_get_mr_args __user *)optval, - sizeof(struct rds_get_mr_args))) + if (copy_from_sockptr(&args, optval, sizeof(struct rds_get_mr_args))) return -EFAULT; return __rds_rdma_map(rs, &args, NULL, NULL, NULL); } -int rds_get_mr_for_dest(struct rds_sock *rs, char __user *optval, int optlen) +int rds_get_mr_for_dest(struct rds_sock *rs, sockptr_t optval, int optlen) { struct rds_get_mr_for_dest_args args; struct rds_get_mr_args new_args; @@ -375,7 +374,7 @@ int rds_get_mr_for_dest(struct rds_sock *rs, char __user *optval, int optlen) if (optlen != sizeof(struct rds_get_mr_for_dest_args)) return -EINVAL; - if (copy_from_user(&args, (struct rds_get_mr_for_dest_args __user *)optval, + if (copy_from_sockptr(&args, optval, sizeof(struct rds_get_mr_for_dest_args))) return -EFAULT; @@ -394,7 +393,7 @@ int rds_get_mr_for_dest(struct rds_sock *rs, char __user *optval, int optlen) /* * Free the MR indicated by the given R_Key */ -int rds_free_mr(struct rds_sock *rs, char __user *optval, int optlen) +int rds_free_mr(struct rds_sock *rs, sockptr_t optval, int optlen) { struct rds_free_mr_args args; struct rds_mr *mr; @@ -403,8 +402,7 @@ int rds_free_mr(struct rds_sock *rs, char __user *optval, int optlen) if (optlen != sizeof(struct rds_free_mr_args)) return -EINVAL; - if (copy_from_user(&args, (struct rds_free_mr_args __user *)optval, - sizeof(struct rds_free_mr_args))) + if (copy_from_sockptr(&args, optval, sizeof(struct rds_free_mr_args))) return -EFAULT; /* Special case - a null cookie means flush all unused MRs */ diff --git a/net/rds/rds.h b/net/rds/rds.h index 106e862996b9..d35d1fc39807 100644 --- a/net/rds/rds.h +++ b/net/rds/rds.h @@ -924,9 +924,9 @@ int rds_send_pong(struct rds_conn_path *cp, __be16 dport); /* rdma.c */ void rds_rdma_unuse(struct rds_sock *rs, u32 r_key, int force); -int rds_get_mr(struct rds_sock *rs, char __user *optval, int optlen); -int rds_get_mr_for_dest(struct rds_sock *rs, char __user *optval, int optlen); -int rds_free_mr(struct rds_sock *rs, char __user *optval, int optlen); +int rds_get_mr(struct rds_sock *rs, sockptr_t optval, int optlen); +int rds_get_mr_for_dest(struct rds_sock *rs, sockptr_t optval, int optlen); +int rds_free_mr(struct rds_sock *rs, sockptr_t optval, int optlen); void rds_rdma_drop_keys(struct rds_sock *rs); int rds_rdma_extra_size(struct rds_rdma_args *args, struct rds_iov_vector *iov); diff --git a/net/rose/af_rose.c b/net/rose/af_rose.c index ce85656ac9c1..cf7d974e0f61 100644 --- a/net/rose/af_rose.c +++ b/net/rose/af_rose.c @@ -365,7 +365,7 @@ void rose_destroy_socket(struct sock *sk) */ static int rose_setsockopt(struct socket *sock, int level, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { struct sock *sk = sock->sk; struct rose_sock *rose = rose_sk(sk); @@ -377,7 +377,7 @@ static int rose_setsockopt(struct socket *sock, int level, int optname, if (optlen < sizeof(int)) return -EINVAL; - if (get_user(opt, (int __user *)optval)) + if (copy_from_sockptr(&opt, optval, sizeof(int))) return -EFAULT; switch (optname) { diff --git a/net/rxrpc/af_rxrpc.c b/net/rxrpc/af_rxrpc.c index cd7d0d204c74..e6725a6de015 100644 --- a/net/rxrpc/af_rxrpc.c +++ b/net/rxrpc/af_rxrpc.c @@ -588,7 +588,7 @@ EXPORT_SYMBOL(rxrpc_sock_set_min_security_level); * set RxRPC socket options */ static int rxrpc_setsockopt(struct socket *sock, int level, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { struct rxrpc_sock *rx = rxrpc_sk(sock->sk); unsigned int min_sec_level; @@ -639,8 +639,8 @@ static int rxrpc_setsockopt(struct socket *sock, int level, int optname, ret = -EISCONN; if (rx->sk.sk_state != RXRPC_UNBOUND) goto error; - ret = get_user(min_sec_level, - (unsigned int __user *) optval); + ret = copy_from_sockptr(&min_sec_level, optval, + sizeof(unsigned int)); if (ret < 0) goto error; ret = -EINVAL; @@ -658,7 +658,7 @@ static int rxrpc_setsockopt(struct socket *sock, int level, int optname, if (rx->sk.sk_state != RXRPC_SERVER_BOUND2) goto error; ret = -EFAULT; - if (copy_from_user(service_upgrade, optval, + if (copy_from_sockptr(service_upgrade, optval, sizeof(service_upgrade)) != 0) goto error; ret = -EINVAL; diff --git a/net/rxrpc/ar-internal.h b/net/rxrpc/ar-internal.h index 9a2139ebd67d..6d29a3603a3e 100644 --- a/net/rxrpc/ar-internal.h +++ b/net/rxrpc/ar-internal.h @@ -909,8 +909,8 @@ extern const struct rxrpc_security rxrpc_no_security; extern struct key_type key_type_rxrpc; extern struct key_type key_type_rxrpc_s; -int rxrpc_request_key(struct rxrpc_sock *, char __user *, int); -int rxrpc_server_keyring(struct rxrpc_sock *, char __user *, int); +int rxrpc_request_key(struct rxrpc_sock *, sockptr_t , int); +int rxrpc_server_keyring(struct rxrpc_sock *, sockptr_t, int); int rxrpc_get_server_data_key(struct rxrpc_connection *, const void *, time64_t, u32); diff --git a/net/rxrpc/key.c b/net/rxrpc/key.c index 0c98313dd7a8..94c3df392651 100644 --- a/net/rxrpc/key.c +++ b/net/rxrpc/key.c @@ -896,7 +896,7 @@ static void rxrpc_describe(const struct key *key, struct seq_file *m) /* * grab the security key for a socket */ -int rxrpc_request_key(struct rxrpc_sock *rx, char __user *optval, int optlen) +int rxrpc_request_key(struct rxrpc_sock *rx, sockptr_t optval, int optlen) { struct key *key; char *description; @@ -906,7 +906,7 @@ int rxrpc_request_key(struct rxrpc_sock *rx, char __user *optval, int optlen) if (optlen <= 0 || optlen > PAGE_SIZE - 1) return -EINVAL; - description = memdup_user_nul(optval, optlen); + description = memdup_sockptr_nul(optval, optlen); if (IS_ERR(description)) return PTR_ERR(description); @@ -926,8 +926,7 @@ int rxrpc_request_key(struct rxrpc_sock *rx, char __user *optval, int optlen) /* * grab the security keyring for a server socket */ -int rxrpc_server_keyring(struct rxrpc_sock *rx, char __user *optval, - int optlen) +int rxrpc_server_keyring(struct rxrpc_sock *rx, sockptr_t optval, int optlen) { struct key *key; char *description; @@ -937,7 +936,7 @@ int rxrpc_server_keyring(struct rxrpc_sock *rx, char __user *optval, if (optlen <= 0 || optlen > PAGE_SIZE - 1) return -EINVAL; - description = memdup_user_nul(optval, optlen); + description = memdup_sockptr_nul(optval, optlen); if (IS_ERR(description)) return PTR_ERR(description); diff --git a/net/sctp/socket.c b/net/sctp/socket.c index 9a767f359718..144808dfea9e 100644 --- a/net/sctp/socket.c +++ b/net/sctp/socket.c @@ -4429,7 +4429,7 @@ out: * optlen - the size of the buffer. */ static int sctp_setsockopt(struct sock *sk, int level, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { void *kopt = NULL; int retval = 0; @@ -4449,7 +4449,7 @@ static int sctp_setsockopt(struct sock *sk, int level, int optname, } if (optlen > 0) { - kopt = memdup_user(optval, optlen); + kopt = memdup_sockptr(optval, optlen); if (IS_ERR(kopt)) return PTR_ERR(kopt); } diff --git a/net/smc/af_smc.c b/net/smc/af_smc.c index 9711c9e0e515..4ac1d4de6676 100644 --- a/net/smc/af_smc.c +++ b/net/smc/af_smc.c @@ -1731,7 +1731,7 @@ out: } static int smc_setsockopt(struct socket *sock, int level, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { struct sock *sk = sock->sk; struct smc_sock *smc; @@ -1754,7 +1754,7 @@ static int smc_setsockopt(struct socket *sock, int level, int optname, if (optlen < sizeof(int)) return -EINVAL; - if (get_user(val, (int __user *)optval)) + if (copy_from_sockptr(&val, optval, sizeof(int))) return -EFAULT; lock_sock(sk); diff --git a/net/socket.c b/net/socket.c index c97f83d879ae..e44b8ac47f6f 100644 --- a/net/socket.c +++ b/net/socket.c @@ -2094,10 +2094,10 @@ static bool sock_use_custom_sol_socket(const struct socket *sock) * Set a socket option. Because we don't know the option lengths we have * to pass the user mode parameter for the protocols to sort out. */ -int __sys_setsockopt(int fd, int level, int optname, char __user *optval, +int __sys_setsockopt(int fd, int level, int optname, char __user *user_optval, int optlen) { - mm_segment_t oldfs = get_fs(); + sockptr_t optval = USER_SOCKPTR(user_optval); char *kernel_optval = NULL; int err, fput_needed; struct socket *sock; @@ -2115,7 +2115,7 @@ int __sys_setsockopt(int fd, int level, int optname, char __user *optval, if (!in_compat_syscall()) err = BPF_CGROUP_RUN_PROG_SETSOCKOPT(sock->sk, &level, &optname, - optval, &optlen, + user_optval, &optlen, &kernel_optval); if (err < 0) goto out_put; @@ -2124,25 +2124,16 @@ int __sys_setsockopt(int fd, int level, int optname, char __user *optval, goto out_put; } - if (kernel_optval) { - set_fs(KERNEL_DS); - optval = (char __user __force *)kernel_optval; - } - + if (kernel_optval) + optval = KERNEL_SOCKPTR(kernel_optval); if (level == SOL_SOCKET && !sock_use_custom_sol_socket(sock)) - err = sock_setsockopt(sock, level, optname, - USER_SOCKPTR(optval), optlen); + err = sock_setsockopt(sock, level, optname, optval, optlen); else if (unlikely(!sock->ops->setsockopt)) err = -EOPNOTSUPP; else err = sock->ops->setsockopt(sock, level, optname, optval, optlen); - - if (kernel_optval) { - set_fs(oldfs); - kfree(kernel_optval); - } - + kfree(kernel_optval); out_put: fput_light(sock->file, fput_needed); return err; diff --git a/net/tipc/socket.c b/net/tipc/socket.c index fc388cef6471..07419f36116a 100644 --- a/net/tipc/socket.c +++ b/net/tipc/socket.c @@ -3103,7 +3103,7 @@ static int tipc_sk_leave(struct tipc_sock *tsk) * Returns 0 on success, errno otherwise */ static int tipc_setsockopt(struct socket *sock, int lvl, int opt, - char __user *ov, unsigned int ol) + sockptr_t ov, unsigned int ol) { struct sock *sk = sock->sk; struct tipc_sock *tsk = tipc_sk(sk); @@ -3124,17 +3124,17 @@ static int tipc_setsockopt(struct socket *sock, int lvl, int opt, case TIPC_NODELAY: if (ol < sizeof(value)) return -EINVAL; - if (get_user(value, (u32 __user *)ov)) + if (copy_from_sockptr(&value, ov, sizeof(u32))) return -EFAULT; break; case TIPC_GROUP_JOIN: if (ol < sizeof(mreq)) return -EINVAL; - if (copy_from_user(&mreq, ov, sizeof(mreq))) + if (copy_from_sockptr(&mreq, ov, sizeof(mreq))) return -EFAULT; break; default: - if (ov || ol) + if (!sockptr_is_null(ov) || ol) return -EINVAL; } diff --git a/net/tls/tls_main.c b/net/tls/tls_main.c index ec10041c6b7d..d77f7d821130 100644 --- a/net/tls/tls_main.c +++ b/net/tls/tls_main.c @@ -450,7 +450,7 @@ static int tls_getsockopt(struct sock *sk, int level, int optname, return do_tls_getsockopt(sk, optname, optval, optlen); } -static int do_tls_setsockopt_conf(struct sock *sk, char __user *optval, +static int do_tls_setsockopt_conf(struct sock *sk, sockptr_t optval, unsigned int optlen, int tx) { struct tls_crypto_info *crypto_info; @@ -460,7 +460,7 @@ static int do_tls_setsockopt_conf(struct sock *sk, char __user *optval, int rc = 0; int conf; - if (!optval || (optlen < sizeof(*crypto_info))) { + if (sockptr_is_null(optval) || (optlen < sizeof(*crypto_info))) { rc = -EINVAL; goto out; } @@ -479,7 +479,7 @@ static int do_tls_setsockopt_conf(struct sock *sk, char __user *optval, goto out; } - rc = copy_from_user(crypto_info, optval, sizeof(*crypto_info)); + rc = copy_from_sockptr(crypto_info, optval, sizeof(*crypto_info)); if (rc) { rc = -EFAULT; goto err_crypto_info; @@ -522,8 +522,9 @@ static int do_tls_setsockopt_conf(struct sock *sk, char __user *optval, goto err_crypto_info; } - rc = copy_from_user(crypto_info + 1, optval + sizeof(*crypto_info), - optlen - sizeof(*crypto_info)); + sockptr_advance(optval, sizeof(*crypto_info)); + rc = copy_from_sockptr(crypto_info + 1, optval, + optlen - sizeof(*crypto_info)); if (rc) { rc = -EFAULT; goto err_crypto_info; @@ -579,8 +580,8 @@ out: return rc; } -static int do_tls_setsockopt(struct sock *sk, int optname, - char __user *optval, unsigned int optlen) +static int do_tls_setsockopt(struct sock *sk, int optname, sockptr_t optval, + unsigned int optlen) { int rc = 0; @@ -600,7 +601,7 @@ static int do_tls_setsockopt(struct sock *sk, int optname, } static int tls_setsockopt(struct sock *sk, int level, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { struct tls_context *ctx = tls_get_ctx(sk); diff --git a/net/vmw_vsock/af_vsock.c b/net/vmw_vsock/af_vsock.c index df204c6761c4..27bbcfad9c17 100644 --- a/net/vmw_vsock/af_vsock.c +++ b/net/vmw_vsock/af_vsock.c @@ -1517,7 +1517,7 @@ static void vsock_update_buffer_size(struct vsock_sock *vsk, static int vsock_stream_setsockopt(struct socket *sock, int level, int optname, - char __user *optval, + sockptr_t optval, unsigned int optlen) { int err; @@ -1535,7 +1535,7 @@ static int vsock_stream_setsockopt(struct socket *sock, err = -EINVAL; \ goto exit; \ } \ - if (copy_from_user(&_v, optval, sizeof(_v)) != 0) { \ + if (copy_from_sockptr(&_v, optval, sizeof(_v)) != 0) { \ err = -EFAULT; \ goto exit; \ } \ diff --git a/net/x25/af_x25.c b/net/x25/af_x25.c index d5b09bbff375..0bbb283f23c9 100644 --- a/net/x25/af_x25.c +++ b/net/x25/af_x25.c @@ -431,7 +431,7 @@ void x25_destroy_socket_from_timer(struct sock *sk) */ static int x25_setsockopt(struct socket *sock, int level, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { int opt; struct sock *sk = sock->sk; @@ -445,7 +445,7 @@ static int x25_setsockopt(struct socket *sock, int level, int optname, goto out; rc = -EFAULT; - if (get_user(opt, (int __user *)optval)) + if (copy_from_sockptr(&opt, optval, sizeof(int))) goto out; if (opt) diff --git a/net/xdp/xsk.c b/net/xdp/xsk.c index 26e3bba8c204..2e94a7e94671 100644 --- a/net/xdp/xsk.c +++ b/net/xdp/xsk.c @@ -702,7 +702,7 @@ struct xdp_umem_reg_v1 { }; static int xsk_setsockopt(struct socket *sock, int level, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { struct sock *sk = sock->sk; struct xdp_sock *xs = xdp_sk(sk); @@ -720,7 +720,7 @@ static int xsk_setsockopt(struct socket *sock, int level, int optname, if (optlen < sizeof(entries)) return -EINVAL; - if (copy_from_user(&entries, optval, sizeof(entries))) + if (copy_from_sockptr(&entries, optval, sizeof(entries))) return -EFAULT; mutex_lock(&xs->mutex); @@ -747,7 +747,7 @@ static int xsk_setsockopt(struct socket *sock, int level, int optname, else if (optlen < sizeof(mr)) mr_size = sizeof(struct xdp_umem_reg_v1); - if (copy_from_user(&mr, optval, mr_size)) + if (copy_from_sockptr(&mr, optval, mr_size)) return -EFAULT; mutex_lock(&xs->mutex); @@ -774,7 +774,7 @@ static int xsk_setsockopt(struct socket *sock, int level, int optname, struct xsk_queue **q; int entries; - if (copy_from_user(&entries, optval, sizeof(entries))) + if (copy_from_sockptr(&entries, optval, sizeof(entries))) return -EFAULT; mutex_lock(&xs->mutex); -- cgit v1.2.3