summaryrefslogtreecommitdiffstats
path: root/net/ipv6
diff options
context:
space:
mode:
Diffstat (limited to 'net/ipv6')
-rw-r--r--net/ipv6/ipv6_sockglue.c183
-rw-r--r--net/ipv6/raw.c50
-rw-r--r--net/ipv6/tcp_ipv6.c12
-rw-r--r--net/ipv6/udp.c25
-rw-r--r--net/ipv6/udp_impl.h6
-rw-r--r--net/ipv6/udplite.c4
6 files changed, 51 insertions, 229 deletions
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 = {
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-25 01:33:42 +0100