*
* Based on linux/net/ipv4/ip_sockglue.c
*
- * $Id: ipv6_sockglue.c,v 1.41 2002/02/01 22:01:04 davem Exp $
- *
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
#include <net/udp.h>
#include <net/udplite.h>
#include <net/xfrm.h>
+#include <net/compat.h>
#include <asm/uaccess.h>
/* RA packet may be delivered ONLY to IPPROTO_RAW socket */
if (sk->sk_type != SOCK_RAW || inet_sk(sk)->num != IPPROTO_RAW)
- return -EINVAL;
+ return -ENOPROTOOPT;
new_ra = (sel>=0) ? kmalloc(sizeof(*new_ra), GFP_KERNEL) : NULL;
return 0;
}
+static
+struct ipv6_txoptions *ipv6_update_options(struct sock *sk,
+ struct ipv6_txoptions *opt)
+{
+ if (inet_sk(sk)->is_icsk) {
+ if (opt &&
+ !((1 << sk->sk_state) & (TCPF_LISTEN | TCPF_CLOSE)) &&
+ inet_sk(sk)->daddr != LOOPBACK4_IPV6) {
+ struct inet_connection_sock *icsk = inet_csk(sk);
+ icsk->icsk_ext_hdr_len = opt->opt_flen + opt->opt_nflen;
+ icsk->icsk_sync_mss(sk, icsk->icsk_pmtu_cookie);
+ }
+ opt = xchg(&inet6_sk(sk)->opt, opt);
+ } else {
+ write_lock(&sk->sk_dst_lock);
+ opt = xchg(&inet6_sk(sk)->opt, opt);
+ write_unlock(&sk->sk_dst_lock);
+ }
+ sk_dst_reset(sk);
+
+ return opt;
+}
+
static int do_ipv6_setsockopt(struct sock *sk, int level, int optname,
char __user *optval, int optlen)
{
struct ipv6_txoptions *opt;
struct sk_buff *pktopt;
- if (sk->sk_protocol != IPPROTO_UDP &&
- sk->sk_protocol != IPPROTO_UDPLITE &&
- sk->sk_protocol != IPPROTO_TCP)
+ if (sk->sk_type == SOCK_RAW)
+ break;
+
+ if (sk->sk_protocol == IPPROTO_UDP ||
+ sk->sk_protocol == IPPROTO_UDPLITE) {
+ struct udp_sock *up = udp_sk(sk);
+ if (up->pending == AF_INET6) {
+ retv = -EBUSY;
+ break;
+ }
+ } else if (sk->sk_protocol != IPPROTO_TCP)
break;
if (sk->sk_state != TCP_ESTABLISHED) {
case IPV6_DSTOPTS:
{
struct ipv6_txoptions *opt;
+
+ /* remove any sticky options header with a zero option
+ * length, per RFC3542.
+ */
if (optlen == 0)
optval = NULL;
+ else if (optlen < sizeof(struct ipv6_opt_hdr) ||
+ optlen & 0x7 || optlen > 8 * 255)
+ goto e_inval;
/* hop-by-hop / destination options are privileged option */
retv = -EPERM;
if (optname != IPV6_RTHDR && !capable(CAP_NET_RAW))
break;
- if (optlen < sizeof(struct ipv6_opt_hdr) ||
- optlen & 0x7 || optlen > 8 * 255)
- goto e_inval;
-
opt = ipv6_renew_options(sk, np->opt, optname,
(struct ipv6_opt_hdr __user *)optval,
optlen);
}
retv = 0;
- if (inet_sk(sk)->is_icsk) {
- if (opt) {
- struct inet_connection_sock *icsk = inet_csk(sk);
- if (!((1 << sk->sk_state) &
- (TCPF_LISTEN | TCPF_CLOSE))
- && inet_sk(sk)->daddr != LOOPBACK4_IPV6) {
- icsk->icsk_ext_hdr_len =
- opt->opt_flen + opt->opt_nflen;
- icsk->icsk_sync_mss(sk, icsk->icsk_pmtu_cookie);
- }
- }
- opt = xchg(&np->opt, opt);
- sk_dst_reset(sk);
- } else {
- write_lock(&sk->sk_dst_lock);
- opt = xchg(&np->opt, opt);
- write_unlock(&sk->sk_dst_lock);
- sk_dst_reset(sk);
- }
+ opt = ipv6_update_options(sk, opt);
sticky_done:
if (opt)
sock_kfree_s(sk, opt, opt->tot_len);
msg.msg_controllen = optlen;
msg.msg_control = (void*)(opt+1);
- retv = datagram_send_ctl(&msg, &fl, opt, &junk, &junk);
+ retv = datagram_send_ctl(net, &msg, &fl, opt, &junk, &junk);
if (retv)
goto done;
update:
retv = 0;
- if (inet_sk(sk)->is_icsk) {
- if (opt) {
- struct inet_connection_sock *icsk = inet_csk(sk);
- if (!((1 << sk->sk_state) &
- (TCPF_LISTEN | TCPF_CLOSE))
- && inet_sk(sk)->daddr != LOOPBACK4_IPV6) {
- icsk->icsk_ext_hdr_len =
- opt->opt_flen + opt->opt_nflen;
- icsk->icsk_sync_mss(sk, icsk->icsk_pmtu_cookie);
- }
- }
- opt = xchg(&np->opt, opt);
- sk_dst_reset(sk);
- } else {
- write_lock(&sk->sk_dst_lock);
- opt = xchg(&np->opt, opt);
- write_unlock(&sk->sk_dst_lock);
- sk_dst_reset(sk);
- }
-
+ opt = ipv6_update_options(sk, opt);
done:
if (opt)
sock_kfree_s(sk, opt, opt->tot_len);
case IPV6_MULTICAST_HOPS:
if (sk->sk_type == SOCK_STREAM)
- goto e_inval;
+ break;
if (optlen < sizeof(int))
goto e_inval;
if (val > 255 || val < -1)
case IPV6_MULTICAST_LOOP:
if (optlen < sizeof(int))
goto e_inval;
+ if (val != valbool)
+ goto e_inval;
np->mc_loop = valbool;
retv = 0;
break;
case IPV6_MULTICAST_IF:
if (sk->sk_type == SOCK_STREAM)
- goto e_inval;
+ break;
if (optlen < sizeof(int))
goto e_inval;
if (level != SOL_IPV6)
return -ENOPROTOOPT;
+ if (optname >= MCAST_JOIN_GROUP && optname <= MCAST_MSFILTER)
+ return compat_mc_setsockopt(sk, level, optname, optval, optlen,
+ ipv6_setsockopt);
+
err = do_ipv6_setsockopt(sk, level, optname, optval, optlen);
#ifdef CONFIG_NETFILTER
/* we need to exclude all possible ENOPROTOOPTs except default case */
len = min_t(unsigned int, len, ipv6_optlen(hdr));
if (copy_to_user(optval, hdr, len))
return -EFAULT;
- return ipv6_optlen(hdr);
+ return len;
}
static int do_ipv6_getsockopt(struct sock *sk, int level, int optname,
if (sk->sk_protocol != IPPROTO_UDP &&
sk->sk_protocol != IPPROTO_UDPLITE &&
sk->sk_protocol != IPPROTO_TCP)
- return -EINVAL;
+ return -ENOPROTOOPT;
if (sk->sk_state != TCP_ESTABLISHED)
return -ENOTCONN;
val = sk->sk_family;
return -EINVAL;
if (copy_from_user(&gsf, optval, GROUP_FILTER_SIZE(0)))
return -EFAULT;
+ if (gsf.gf_group.ss_family != AF_INET6)
+ return -EADDRNOTAVAIL;
lock_sock(sk);
err = ip6_mc_msfget(sk, &gsf,
(struct group_filter __user *)optval, optlen);
len = ipv6_getsockopt_sticky(sk, np->opt,
optname, optval, len);
release_sock(sk);
+ /* check if ipv6_getsockopt_sticky() returns err code */
+ if (len < 0)
+ return len;
return put_user(len, optlen);
}
if (level != SOL_IPV6)
return -ENOPROTOOPT;
+ if (optname == MCAST_MSFILTER)
+ return compat_mc_getsockopt(sk, level, optname, optval, optlen,
+ ipv6_getsockopt);
+
err = do_ipv6_getsockopt(sk, level, optname, optval, optlen);
#ifdef CONFIG_NETFILTER
/* we need to exclude all possible ENOPROTOOPTs except default case */
git.openpandora.org / pandora-kernel.git / blobdiff