2005-04-16 16:20:36 -06:00
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/*
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* IPv6 BSD socket options interface
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2007-02-09 07:24:49 -07:00
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* Linux INET6 implementation
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2005-04-16 16:20:36 -06:00
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*
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* Authors:
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2007-02-09 07:24:49 -07:00
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* Pedro Roque <roque@di.fc.ul.pt>
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2005-04-16 16:20:36 -06:00
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*
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* Based on linux/net/ipv4/ip_sockglue.c
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*
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* $Id: ipv6_sockglue.c,v 1.41 2002/02/01 22:01:04 davem Exp $
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*
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* FIXME: Make the setsockopt code POSIX compliant: That is
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*
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* o Return -EINVAL for setsockopt of short lengths
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* o Truncate getsockopt returns
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* o Return an optlen of the truncated length if need be
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*
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* Changes:
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* David L Stevens <dlstevens@us.ibm.com>:
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* - added multicast source filtering API for MLDv2
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*/
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#include <linux/module.h>
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2006-01-11 13:17:47 -07:00
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#include <linux/capability.h>
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2005-04-16 16:20:36 -06:00
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#include <linux/errno.h>
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#include <linux/types.h>
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#include <linux/socket.h>
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#include <linux/sockios.h>
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#include <linux/net.h>
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#include <linux/in6.h>
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#include <linux/netdevice.h>
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#include <linux/if_arp.h>
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#include <linux/init.h>
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#include <linux/sysctl.h>
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#include <linux/netfilter.h>
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#include <net/sock.h>
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#include <net/snmp.h>
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#include <net/ipv6.h>
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#include <net/ndisc.h>
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#include <net/protocol.h>
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#include <net/transp_v6.h>
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#include <net/ip6_route.h>
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#include <net/addrconf.h>
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#include <net/inet_common.h>
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#include <net/tcp.h>
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#include <net/udp.h>
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2006-11-27 12:10:57 -07:00
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#include <net/udplite.h>
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2005-04-16 16:20:36 -06:00
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#include <net/xfrm.h>
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#include <asm/uaccess.h>
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2005-08-26 13:05:31 -06:00
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DEFINE_SNMP_STAT(struct ipstats_mib, ipv6_statistics) __read_mostly;
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2005-04-16 16:20:36 -06:00
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2006-07-08 14:34:56 -06:00
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static struct inet6_protocol *ipv6_gso_pull_exthdrs(struct sk_buff *skb,
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int proto)
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2006-06-30 14:36:15 -06:00
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{
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2006-07-08 14:34:56 -06:00
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struct inet6_protocol *ops = NULL;
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2006-07-03 20:38:35 -06:00
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2006-06-30 14:36:15 -06:00
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for (;;) {
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struct ipv6_opt_hdr *opth;
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int len;
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if (proto != NEXTHDR_HOP) {
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ops = rcu_dereference(inet6_protos[proto]);
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if (unlikely(!ops))
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2006-07-08 14:34:56 -06:00
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break;
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2006-06-30 14:36:15 -06:00
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if (!(ops->flags & INET6_PROTO_GSO_EXTHDR))
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break;
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}
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if (unlikely(!pskb_may_pull(skb, 8)))
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2006-07-08 14:34:56 -06:00
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break;
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2006-06-30 14:36:15 -06:00
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opth = (void *)skb->data;
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len = opth->hdrlen * 8 + 8;
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if (unlikely(!pskb_may_pull(skb, len)))
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2006-07-08 14:34:56 -06:00
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break;
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2006-06-30 14:36:15 -06:00
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proto = opth->nexthdr;
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__skb_pull(skb, len);
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}
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2006-07-08 14:34:56 -06:00
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return ops;
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}
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static int ipv6_gso_send_check(struct sk_buff *skb)
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{
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struct ipv6hdr *ipv6h;
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struct inet6_protocol *ops;
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int err = -EINVAL;
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if (unlikely(!pskb_may_pull(skb, sizeof(*ipv6h))))
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goto out;
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2007-04-25 18:54:47 -06:00
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ipv6h = ipv6_hdr(skb);
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2006-07-08 14:34:56 -06:00
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__skb_pull(skb, sizeof(*ipv6h));
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err = -EPROTONOSUPPORT;
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rcu_read_lock();
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ops = ipv6_gso_pull_exthdrs(skb, ipv6h->nexthdr);
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if (likely(ops && ops->gso_send_check)) {
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2007-03-13 10:06:52 -06:00
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skb_reset_transport_header(skb);
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2006-07-08 14:34:56 -06:00
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err = ops->gso_send_check(skb);
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}
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rcu_read_unlock();
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out:
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return err;
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}
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2006-06-30 14:36:15 -06:00
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2006-07-08 14:34:56 -06:00
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static struct sk_buff *ipv6_gso_segment(struct sk_buff *skb, int features)
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{
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struct sk_buff *segs = ERR_PTR(-EINVAL);
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struct ipv6hdr *ipv6h;
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struct inet6_protocol *ops;
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2007-06-27 01:47:37 -06:00
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if (!(features & NETIF_F_V6_CSUM))
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2006-09-27 20:03:36 -06:00
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features &= ~NETIF_F_SG;
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2006-07-08 14:34:56 -06:00
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if (unlikely(skb_shinfo(skb)->gso_type &
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~(SKB_GSO_UDP |
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SKB_GSO_DODGY |
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SKB_GSO_TCP_ECN |
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SKB_GSO_TCPV6 |
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0)))
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goto out;
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if (unlikely(!pskb_may_pull(skb, sizeof(*ipv6h))))
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goto out;
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2007-04-25 18:54:47 -06:00
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ipv6h = ipv6_hdr(skb);
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2006-07-08 14:34:56 -06:00
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__skb_pull(skb, sizeof(*ipv6h));
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segs = ERR_PTR(-EPROTONOSUPPORT);
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rcu_read_lock();
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ops = ipv6_gso_pull_exthdrs(skb, ipv6h->nexthdr);
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if (likely(ops && ops->gso_segment)) {
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2007-03-13 10:06:52 -06:00
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skb_reset_transport_header(skb);
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2006-07-08 14:34:56 -06:00
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segs = ops->gso_segment(skb, features);
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}
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2006-06-30 14:36:15 -06:00
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rcu_read_unlock();
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if (unlikely(IS_ERR(segs)))
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goto out;
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for (skb = segs; skb; skb = skb->next) {
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2007-04-25 18:54:47 -06:00
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ipv6h = ipv6_hdr(skb);
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2006-07-03 20:41:11 -06:00
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ipv6h->payload_len = htons(skb->len - skb->mac_len -
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sizeof(*ipv6h));
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2006-06-30 14:36:15 -06:00
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}
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out:
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return segs;
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}
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2005-04-16 16:20:36 -06:00
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static struct packet_type ipv6_packet_type = {
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2007-02-09 07:24:49 -07:00
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.type = __constant_htons(ETH_P_IPV6),
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2005-04-16 16:20:36 -06:00
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.func = ipv6_rcv,
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2006-07-08 14:34:56 -06:00
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.gso_send_check = ipv6_gso_send_check,
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2006-06-30 14:36:15 -06:00
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.gso_segment = ipv6_gso_segment,
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2005-04-16 16:20:36 -06:00
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};
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struct ip6_ra_chain *ip6_ra_chain;
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DEFINE_RWLOCK(ip6_ra_lock);
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int ip6_ra_control(struct sock *sk, int sel, void (*destructor)(struct sock *))
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{
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struct ip6_ra_chain *ra, *new_ra, **rap;
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/* RA packet may be delivered ONLY to IPPROTO_RAW socket */
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if (sk->sk_type != SOCK_RAW || inet_sk(sk)->num != IPPROTO_RAW)
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return -EINVAL;
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new_ra = (sel>=0) ? kmalloc(sizeof(*new_ra), GFP_KERNEL) : NULL;
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write_lock_bh(&ip6_ra_lock);
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for (rap = &ip6_ra_chain; (ra=*rap) != NULL; rap = &ra->next) {
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if (ra->sk == sk) {
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if (sel>=0) {
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write_unlock_bh(&ip6_ra_lock);
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2005-11-08 10:41:34 -07:00
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kfree(new_ra);
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2005-04-16 16:20:36 -06:00
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return -EADDRINUSE;
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}
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*rap = ra->next;
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write_unlock_bh(&ip6_ra_lock);
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if (ra->destructor)
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ra->destructor(sk);
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sock_put(sk);
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kfree(ra);
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return 0;
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}
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}
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if (new_ra == NULL) {
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write_unlock_bh(&ip6_ra_lock);
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return -ENOBUFS;
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}
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new_ra->sk = sk;
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new_ra->sel = sel;
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new_ra->destructor = destructor;
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new_ra->next = ra;
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*rap = new_ra;
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sock_hold(sk);
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write_unlock_bh(&ip6_ra_lock);
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return 0;
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}
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2006-03-20 23:45:21 -07:00
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static int do_ipv6_setsockopt(struct sock *sk, int level, int optname,
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2005-04-16 16:20:36 -06:00
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char __user *optval, int optlen)
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{
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struct ipv6_pinfo *np = inet6_sk(sk);
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int val, valbool;
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int retv = -ENOPROTOOPT;
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if (optval == NULL)
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val=0;
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else if (get_user(val, (int __user *) optval))
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return -EFAULT;
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valbool = (val!=0);
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lock_sock(sk);
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switch (optname) {
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case IPV6_ADDRFORM:
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if (val == PF_INET) {
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struct ipv6_txoptions *opt;
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struct sk_buff *pktopt;
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if (sk->sk_protocol != IPPROTO_UDP &&
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2006-11-27 12:10:57 -07:00
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sk->sk_protocol != IPPROTO_UDPLITE &&
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2005-04-16 16:20:36 -06:00
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sk->sk_protocol != IPPROTO_TCP)
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break;
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if (sk->sk_state != TCP_ESTABLISHED) {
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retv = -ENOTCONN;
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break;
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}
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if (ipv6_only_sock(sk) ||
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2007-08-25 00:16:08 -06:00
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!ipv6_addr_v4mapped(&np->daddr)) {
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2005-04-16 16:20:36 -06:00
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retv = -EADDRNOTAVAIL;
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break;
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}
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fl6_free_socklist(sk);
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ipv6_sock_mc_close(sk);
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|
2005-08-09 20:45:38 -06:00
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/*
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* Sock is moving from IPv6 to IPv4 (sk_prot), so
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* remove it from the refcnt debug socks count in the
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* original family...
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*/
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sk_refcnt_debug_dec(sk);
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2005-04-16 16:20:36 -06:00
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if (sk->sk_protocol == IPPROTO_TCP) {
|
2005-12-14 00:26:10 -07:00
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struct inet_connection_sock *icsk = inet_csk(sk);
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2005-04-16 16:20:36 -06:00
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local_bh_disable();
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sock_prot_dec_use(sk->sk_prot);
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sock_prot_inc_use(&tcp_prot);
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local_bh_enable();
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sk->sk_prot = &tcp_prot;
|
2005-12-14 00:26:10 -07:00
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icsk->icsk_af_ops = &ipv4_specific;
|
2005-04-16 16:20:36 -06:00
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sk->sk_socket->ops = &inet_stream_ops;
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|
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sk->sk_family = PF_INET;
|
2005-12-14 00:26:10 -07:00
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tcp_sync_mss(sk, icsk->icsk_pmtu_cookie);
|
2005-04-16 16:20:36 -06:00
|
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} else {
|
2006-11-27 12:10:57 -07:00
|
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struct proto *prot = &udp_prot;
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|
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if (sk->sk_protocol == IPPROTO_UDPLITE)
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prot = &udplite_prot;
|
2005-04-16 16:20:36 -06:00
|
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local_bh_disable();
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|
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sock_prot_dec_use(sk->sk_prot);
|
2006-11-27 12:10:57 -07:00
|
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|
sock_prot_inc_use(prot);
|
2005-04-16 16:20:36 -06:00
|
|
|
local_bh_enable();
|
2006-11-27 12:10:57 -07:00
|
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|
sk->sk_prot = prot;
|
2005-04-16 16:20:36 -06:00
|
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|
sk->sk_socket->ops = &inet_dgram_ops;
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|
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sk->sk_family = PF_INET;
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|
|
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}
|
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|
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opt = xchg(&np->opt, NULL);
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|
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if (opt)
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sock_kfree_s(sk, opt, opt->tot_len);
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pktopt = xchg(&np->pktoptions, NULL);
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if (pktopt)
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kfree_skb(pktopt);
|
|
|
|
|
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|
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sk->sk_destruct = inet_sock_destruct;
|
2005-08-09 20:45:38 -06:00
|
|
|
/*
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|
|
* ... and add it to the refcnt debug socks count
|
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* in the new family. -acme
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*/
|
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|
|
sk_refcnt_debug_inc(sk);
|
2005-04-16 16:20:36 -06:00
|
|
|
module_put(THIS_MODULE);
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|
|
retv = 0;
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break;
|
|
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}
|
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|
|
goto e_inval;
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|
|
|
|
|
|
|
case IPV6_V6ONLY:
|
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|
|
if (inet_sk(sk)->num)
|
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|
|
goto e_inval;
|
|
|
|
np->ipv6only = valbool;
|
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|
|
retv = 0;
|
|
|
|
break;
|
|
|
|
|
[IPV6]: Support several new sockopt / ancillary data in Advanced API (RFC3542).
Support several new socket options / ancillary data:
IPV6_RECVPKTINFO, IPV6_PKTINFO,
IPV6_RECVHOPOPTS, IPV6_HOPOPTS,
IPV6_RECVDSTOPTS, IPV6_DSTOPTS, IPV6_RTHDRDSTOPTS,
IPV6_RECVRTHDR, IPV6_RTHDR,
IPV6_RECVHOPOPTS, IPV6_HOPOPTS
Old semantics are preserved as IPV6_2292xxxx so that
we can maintain backward compatibility.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-09-07 18:59:17 -06:00
|
|
|
case IPV6_RECVPKTINFO:
|
2005-04-16 16:20:36 -06:00
|
|
|
np->rxopt.bits.rxinfo = valbool;
|
|
|
|
retv = 0;
|
|
|
|
break;
|
2007-02-09 07:24:49 -07:00
|
|
|
|
[IPV6]: Support several new sockopt / ancillary data in Advanced API (RFC3542).
Support several new socket options / ancillary data:
IPV6_RECVPKTINFO, IPV6_PKTINFO,
IPV6_RECVHOPOPTS, IPV6_HOPOPTS,
IPV6_RECVDSTOPTS, IPV6_DSTOPTS, IPV6_RTHDRDSTOPTS,
IPV6_RECVRTHDR, IPV6_RTHDR,
IPV6_RECVHOPOPTS, IPV6_HOPOPTS
Old semantics are preserved as IPV6_2292xxxx so that
we can maintain backward compatibility.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-09-07 18:59:17 -06:00
|
|
|
case IPV6_2292PKTINFO:
|
|
|
|
np->rxopt.bits.rxoinfo = valbool;
|
|
|
|
retv = 0;
|
|
|
|
break;
|
2005-04-16 16:20:36 -06:00
|
|
|
|
[IPV6]: Support several new sockopt / ancillary data in Advanced API (RFC3542).
Support several new socket options / ancillary data:
IPV6_RECVPKTINFO, IPV6_PKTINFO,
IPV6_RECVHOPOPTS, IPV6_HOPOPTS,
IPV6_RECVDSTOPTS, IPV6_DSTOPTS, IPV6_RTHDRDSTOPTS,
IPV6_RECVRTHDR, IPV6_RTHDR,
IPV6_RECVHOPOPTS, IPV6_HOPOPTS
Old semantics are preserved as IPV6_2292xxxx so that
we can maintain backward compatibility.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-09-07 18:59:17 -06:00
|
|
|
case IPV6_RECVHOPLIMIT:
|
2005-04-16 16:20:36 -06:00
|
|
|
np->rxopt.bits.rxhlim = valbool;
|
|
|
|
retv = 0;
|
|
|
|
break;
|
|
|
|
|
[IPV6]: Support several new sockopt / ancillary data in Advanced API (RFC3542).
Support several new socket options / ancillary data:
IPV6_RECVPKTINFO, IPV6_PKTINFO,
IPV6_RECVHOPOPTS, IPV6_HOPOPTS,
IPV6_RECVDSTOPTS, IPV6_DSTOPTS, IPV6_RTHDRDSTOPTS,
IPV6_RECVRTHDR, IPV6_RTHDR,
IPV6_RECVHOPOPTS, IPV6_HOPOPTS
Old semantics are preserved as IPV6_2292xxxx so that
we can maintain backward compatibility.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-09-07 18:59:17 -06:00
|
|
|
case IPV6_2292HOPLIMIT:
|
|
|
|
np->rxopt.bits.rxohlim = valbool;
|
|
|
|
retv = 0;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case IPV6_RECVRTHDR:
|
2007-05-22 22:28:48 -06:00
|
|
|
np->rxopt.bits.srcrt = valbool;
|
2005-04-16 16:20:36 -06:00
|
|
|
retv = 0;
|
|
|
|
break;
|
|
|
|
|
[IPV6]: Support several new sockopt / ancillary data in Advanced API (RFC3542).
Support several new socket options / ancillary data:
IPV6_RECVPKTINFO, IPV6_PKTINFO,
IPV6_RECVHOPOPTS, IPV6_HOPOPTS,
IPV6_RECVDSTOPTS, IPV6_DSTOPTS, IPV6_RTHDRDSTOPTS,
IPV6_RECVRTHDR, IPV6_RTHDR,
IPV6_RECVHOPOPTS, IPV6_HOPOPTS
Old semantics are preserved as IPV6_2292xxxx so that
we can maintain backward compatibility.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-09-07 18:59:17 -06:00
|
|
|
case IPV6_2292RTHDR:
|
2007-05-22 22:28:48 -06:00
|
|
|
np->rxopt.bits.osrcrt = valbool;
|
[IPV6]: Support several new sockopt / ancillary data in Advanced API (RFC3542).
Support several new socket options / ancillary data:
IPV6_RECVPKTINFO, IPV6_PKTINFO,
IPV6_RECVHOPOPTS, IPV6_HOPOPTS,
IPV6_RECVDSTOPTS, IPV6_DSTOPTS, IPV6_RTHDRDSTOPTS,
IPV6_RECVRTHDR, IPV6_RTHDR,
IPV6_RECVHOPOPTS, IPV6_HOPOPTS
Old semantics are preserved as IPV6_2292xxxx so that
we can maintain backward compatibility.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-09-07 18:59:17 -06:00
|
|
|
retv = 0;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case IPV6_RECVHOPOPTS:
|
2005-04-16 16:20:36 -06:00
|
|
|
np->rxopt.bits.hopopts = valbool;
|
|
|
|
retv = 0;
|
|
|
|
break;
|
|
|
|
|
[IPV6]: Support several new sockopt / ancillary data in Advanced API (RFC3542).
Support several new socket options / ancillary data:
IPV6_RECVPKTINFO, IPV6_PKTINFO,
IPV6_RECVHOPOPTS, IPV6_HOPOPTS,
IPV6_RECVDSTOPTS, IPV6_DSTOPTS, IPV6_RTHDRDSTOPTS,
IPV6_RECVRTHDR, IPV6_RTHDR,
IPV6_RECVHOPOPTS, IPV6_HOPOPTS
Old semantics are preserved as IPV6_2292xxxx so that
we can maintain backward compatibility.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-09-07 18:59:17 -06:00
|
|
|
case IPV6_2292HOPOPTS:
|
|
|
|
np->rxopt.bits.ohopopts = valbool;
|
|
|
|
retv = 0;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case IPV6_RECVDSTOPTS:
|
2005-04-16 16:20:36 -06:00
|
|
|
np->rxopt.bits.dstopts = valbool;
|
|
|
|
retv = 0;
|
|
|
|
break;
|
|
|
|
|
[IPV6]: Support several new sockopt / ancillary data in Advanced API (RFC3542).
Support several new socket options / ancillary data:
IPV6_RECVPKTINFO, IPV6_PKTINFO,
IPV6_RECVHOPOPTS, IPV6_HOPOPTS,
IPV6_RECVDSTOPTS, IPV6_DSTOPTS, IPV6_RTHDRDSTOPTS,
IPV6_RECVRTHDR, IPV6_RTHDR,
IPV6_RECVHOPOPTS, IPV6_HOPOPTS
Old semantics are preserved as IPV6_2292xxxx so that
we can maintain backward compatibility.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-09-07 18:59:17 -06:00
|
|
|
case IPV6_2292DSTOPTS:
|
|
|
|
np->rxopt.bits.odstopts = valbool;
|
|
|
|
retv = 0;
|
|
|
|
break;
|
|
|
|
|
2005-09-07 19:19:03 -06:00
|
|
|
case IPV6_TCLASS:
|
2006-09-13 21:08:07 -06:00
|
|
|
if (val < -1 || val > 0xff)
|
2005-09-07 19:19:03 -06:00
|
|
|
goto e_inval;
|
|
|
|
np->tclass = val;
|
|
|
|
retv = 0;
|
|
|
|
break;
|
2007-02-09 07:24:49 -07:00
|
|
|
|
2005-09-07 19:19:03 -06:00
|
|
|
case IPV6_RECVTCLASS:
|
|
|
|
np->rxopt.bits.rxtclass = valbool;
|
|
|
|
retv = 0;
|
|
|
|
break;
|
|
|
|
|
2005-04-16 16:20:36 -06:00
|
|
|
case IPV6_FLOWINFO:
|
|
|
|
np->rxopt.bits.rxflow = valbool;
|
|
|
|
retv = 0;
|
|
|
|
break;
|
|
|
|
|
[IPV6]: Support several new sockopt / ancillary data in Advanced API (RFC3542).
Support several new socket options / ancillary data:
IPV6_RECVPKTINFO, IPV6_PKTINFO,
IPV6_RECVHOPOPTS, IPV6_HOPOPTS,
IPV6_RECVDSTOPTS, IPV6_DSTOPTS, IPV6_RTHDRDSTOPTS,
IPV6_RECVRTHDR, IPV6_RTHDR,
IPV6_RECVHOPOPTS, IPV6_HOPOPTS
Old semantics are preserved as IPV6_2292xxxx so that
we can maintain backward compatibility.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-09-07 18:59:17 -06:00
|
|
|
case IPV6_HOPOPTS:
|
|
|
|
case IPV6_RTHDRDSTOPTS:
|
|
|
|
case IPV6_RTHDR:
|
|
|
|
case IPV6_DSTOPTS:
|
|
|
|
{
|
|
|
|
struct ipv6_txoptions *opt;
|
|
|
|
if (optlen == 0)
|
2005-11-14 22:43:36 -07:00
|
|
|
optval = NULL;
|
[IPV6]: Support several new sockopt / ancillary data in Advanced API (RFC3542).
Support several new socket options / ancillary data:
IPV6_RECVPKTINFO, IPV6_PKTINFO,
IPV6_RECVHOPOPTS, IPV6_HOPOPTS,
IPV6_RECVDSTOPTS, IPV6_DSTOPTS, IPV6_RTHDRDSTOPTS,
IPV6_RECVRTHDR, IPV6_RTHDR,
IPV6_RECVHOPOPTS, IPV6_HOPOPTS
Old semantics are preserved as IPV6_2292xxxx so that
we can maintain backward compatibility.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-09-07 18:59:17 -06:00
|
|
|
|
|
|
|
/* hop-by-hop / destination options are privileged option */
|
|
|
|
retv = -EPERM;
|
|
|
|
if (optname != IPV6_RTHDR && !capable(CAP_NET_RAW))
|
|
|
|
break;
|
|
|
|
|
|
|
|
retv = -EINVAL;
|
|
|
|
if (optlen & 0x7 || optlen > 8 * 255)
|
|
|
|
break;
|
|
|
|
|
|
|
|
opt = ipv6_renew_options(sk, np->opt, optname,
|
|
|
|
(struct ipv6_opt_hdr __user *)optval,
|
|
|
|
optlen);
|
|
|
|
if (IS_ERR(opt)) {
|
|
|
|
retv = PTR_ERR(opt);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* routing header option needs extra check */
|
2007-03-09 14:55:38 -07:00
|
|
|
if (optname == IPV6_RTHDR && opt && opt->srcrt) {
|
[IPV6]: Support several new sockopt / ancillary data in Advanced API (RFC3542).
Support several new socket options / ancillary data:
IPV6_RECVPKTINFO, IPV6_PKTINFO,
IPV6_RECVHOPOPTS, IPV6_HOPOPTS,
IPV6_RECVDSTOPTS, IPV6_DSTOPTS, IPV6_RTHDRDSTOPTS,
IPV6_RECVRTHDR, IPV6_RTHDR,
IPV6_RECVHOPOPTS, IPV6_HOPOPTS
Old semantics are preserved as IPV6_2292xxxx so that
we can maintain backward compatibility.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-09-07 18:59:17 -06:00
|
|
|
struct ipv6_rt_hdr *rthdr = opt->srcrt;
|
2006-08-23 20:17:12 -06:00
|
|
|
switch (rthdr->type) {
|
2007-06-27 00:56:32 -06:00
|
|
|
#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
|
2006-08-23 20:17:12 -06:00
|
|
|
case IPV6_SRCRT_TYPE_2:
|
|
|
|
break;
|
2007-07-10 23:55:49 -06:00
|
|
|
#endif
|
2006-08-23 20:17:12 -06:00
|
|
|
default:
|
[IPV6]: Support several new sockopt / ancillary data in Advanced API (RFC3542).
Support several new socket options / ancillary data:
IPV6_RECVPKTINFO, IPV6_PKTINFO,
IPV6_RECVHOPOPTS, IPV6_HOPOPTS,
IPV6_RECVDSTOPTS, IPV6_DSTOPTS, IPV6_RTHDRDSTOPTS,
IPV6_RECVRTHDR, IPV6_RTHDR,
IPV6_RECVHOPOPTS, IPV6_HOPOPTS
Old semantics are preserved as IPV6_2292xxxx so that
we can maintain backward compatibility.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-09-07 18:59:17 -06:00
|
|
|
goto sticky_done;
|
2006-08-23 20:17:12 -06:00
|
|
|
}
|
|
|
|
|
[IPV6]: Support several new sockopt / ancillary data in Advanced API (RFC3542).
Support several new socket options / ancillary data:
IPV6_RECVPKTINFO, IPV6_PKTINFO,
IPV6_RECVHOPOPTS, IPV6_HOPOPTS,
IPV6_RECVDSTOPTS, IPV6_DSTOPTS, IPV6_RTHDRDSTOPTS,
IPV6_RECVRTHDR, IPV6_RTHDR,
IPV6_RECVHOPOPTS, IPV6_HOPOPTS
Old semantics are preserved as IPV6_2292xxxx so that
we can maintain backward compatibility.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-09-07 18:59:17 -06:00
|
|
|
if ((rthdr->hdrlen & 1) ||
|
|
|
|
(rthdr->hdrlen >> 1) != rthdr->segments_left)
|
|
|
|
goto sticky_done;
|
|
|
|
}
|
|
|
|
|
|
|
|
retv = 0;
|
2005-12-14 00:26:10 -07:00
|
|
|
if (inet_sk(sk)->is_icsk) {
|
[IPV6]: Support several new sockopt / ancillary data in Advanced API (RFC3542).
Support several new socket options / ancillary data:
IPV6_RECVPKTINFO, IPV6_PKTINFO,
IPV6_RECVHOPOPTS, IPV6_HOPOPTS,
IPV6_RECVDSTOPTS, IPV6_DSTOPTS, IPV6_RTHDRDSTOPTS,
IPV6_RECVRTHDR, IPV6_RTHDR,
IPV6_RECVHOPOPTS, IPV6_HOPOPTS
Old semantics are preserved as IPV6_2292xxxx so that
we can maintain backward compatibility.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-09-07 18:59:17 -06:00
|
|
|
if (opt) {
|
2005-12-14 00:26:10 -07:00
|
|
|
struct inet_connection_sock *icsk = inet_csk(sk);
|
[IPV6]: Support several new sockopt / ancillary data in Advanced API (RFC3542).
Support several new socket options / ancillary data:
IPV6_RECVPKTINFO, IPV6_PKTINFO,
IPV6_RECVHOPOPTS, IPV6_HOPOPTS,
IPV6_RECVDSTOPTS, IPV6_DSTOPTS, IPV6_RTHDRDSTOPTS,
IPV6_RECVRTHDR, IPV6_RTHDR,
IPV6_RECVHOPOPTS, IPV6_HOPOPTS
Old semantics are preserved as IPV6_2292xxxx so that
we can maintain backward compatibility.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-09-07 18:59:17 -06:00
|
|
|
if (!((1 << sk->sk_state) &
|
|
|
|
(TCPF_LISTEN | TCPF_CLOSE))
|
|
|
|
&& inet_sk(sk)->daddr != LOOPBACK4_IPV6) {
|
2005-12-14 00:26:10 -07:00
|
|
|
icsk->icsk_ext_hdr_len =
|
|
|
|
opt->opt_flen + opt->opt_nflen;
|
|
|
|
icsk->icsk_sync_mss(sk, icsk->icsk_pmtu_cookie);
|
[IPV6]: Support several new sockopt / ancillary data in Advanced API (RFC3542).
Support several new socket options / ancillary data:
IPV6_RECVPKTINFO, IPV6_PKTINFO,
IPV6_RECVHOPOPTS, IPV6_HOPOPTS,
IPV6_RECVDSTOPTS, IPV6_DSTOPTS, IPV6_RTHDRDSTOPTS,
IPV6_RECVRTHDR, IPV6_RTHDR,
IPV6_RECVHOPOPTS, IPV6_HOPOPTS
Old semantics are preserved as IPV6_2292xxxx so that
we can maintain backward compatibility.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-09-07 18:59:17 -06:00
|
|
|
}
|
|
|
|
}
|
|
|
|
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);
|
|
|
|
}
|
|
|
|
sticky_done:
|
|
|
|
if (opt)
|
|
|
|
sock_kfree_s(sk, opt, opt->tot_len);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
case IPV6_2292PKTOPTIONS:
|
2005-04-16 16:20:36 -06:00
|
|
|
{
|
|
|
|
struct ipv6_txoptions *opt = NULL;
|
|
|
|
struct msghdr msg;
|
|
|
|
struct flowi fl;
|
|
|
|
int junk;
|
|
|
|
|
|
|
|
fl.fl6_flowlabel = 0;
|
|
|
|
fl.oif = sk->sk_bound_dev_if;
|
|
|
|
|
|
|
|
if (optlen == 0)
|
|
|
|
goto update;
|
|
|
|
|
|
|
|
/* 1K is probably excessive
|
|
|
|
* 1K is surely not enough, 2K per standard header is 16K.
|
|
|
|
*/
|
|
|
|
retv = -EINVAL;
|
|
|
|
if (optlen > 64*1024)
|
|
|
|
break;
|
|
|
|
|
|
|
|
opt = sock_kmalloc(sk, sizeof(*opt) + optlen, GFP_KERNEL);
|
|
|
|
retv = -ENOBUFS;
|
|
|
|
if (opt == NULL)
|
|
|
|
break;
|
|
|
|
|
|
|
|
memset(opt, 0, sizeof(*opt));
|
|
|
|
opt->tot_len = sizeof(*opt) + optlen;
|
|
|
|
retv = -EFAULT;
|
|
|
|
if (copy_from_user(opt+1, optval, optlen))
|
|
|
|
goto done;
|
|
|
|
|
|
|
|
msg.msg_controllen = optlen;
|
|
|
|
msg.msg_control = (void*)(opt+1);
|
|
|
|
|
2005-09-07 19:19:03 -06:00
|
|
|
retv = datagram_send_ctl(&msg, &fl, opt, &junk, &junk);
|
2005-04-16 16:20:36 -06:00
|
|
|
if (retv)
|
|
|
|
goto done;
|
|
|
|
update:
|
|
|
|
retv = 0;
|
2005-12-14 00:26:10 -07:00
|
|
|
if (inet_sk(sk)->is_icsk) {
|
2005-04-16 16:20:36 -06:00
|
|
|
if (opt) {
|
2005-12-14 00:26:10 -07:00
|
|
|
struct inet_connection_sock *icsk = inet_csk(sk);
|
2005-04-16 16:20:36 -06:00
|
|
|
if (!((1 << sk->sk_state) &
|
|
|
|
(TCPF_LISTEN | TCPF_CLOSE))
|
|
|
|
&& inet_sk(sk)->daddr != LOOPBACK4_IPV6) {
|
2005-12-14 00:26:10 -07:00
|
|
|
icsk->icsk_ext_hdr_len =
|
|
|
|
opt->opt_flen + opt->opt_nflen;
|
|
|
|
icsk->icsk_sync_mss(sk, icsk->icsk_pmtu_cookie);
|
2005-04-16 16:20:36 -06:00
|
|
|
}
|
|
|
|
}
|
|
|
|
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);
|
|
|
|
}
|
|
|
|
|
|
|
|
done:
|
|
|
|
if (opt)
|
|
|
|
sock_kfree_s(sk, opt, opt->tot_len);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
case IPV6_UNICAST_HOPS:
|
|
|
|
if (val > 255 || val < -1)
|
|
|
|
goto e_inval;
|
|
|
|
np->hop_limit = val;
|
|
|
|
retv = 0;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case IPV6_MULTICAST_HOPS:
|
|
|
|
if (sk->sk_type == SOCK_STREAM)
|
|
|
|
goto e_inval;
|
|
|
|
if (val > 255 || val < -1)
|
|
|
|
goto e_inval;
|
|
|
|
np->mcast_hops = val;
|
|
|
|
retv = 0;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case IPV6_MULTICAST_LOOP:
|
|
|
|
np->mc_loop = valbool;
|
|
|
|
retv = 0;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case IPV6_MULTICAST_IF:
|
|
|
|
if (sk->sk_type == SOCK_STREAM)
|
|
|
|
goto e_inval;
|
|
|
|
|
2007-10-11 15:39:29 -06:00
|
|
|
if (val) {
|
|
|
|
if (sk->sk_bound_dev_if && sk->sk_bound_dev_if != val)
|
|
|
|
goto e_inval;
|
|
|
|
|
|
|
|
if (__dev_get_by_index(&init_net, val) == NULL) {
|
|
|
|
retv = -ENODEV;
|
|
|
|
break;
|
|
|
|
}
|
2005-04-16 16:20:36 -06:00
|
|
|
}
|
|
|
|
np->mcast_oif = val;
|
|
|
|
retv = 0;
|
|
|
|
break;
|
|
|
|
case IPV6_ADD_MEMBERSHIP:
|
|
|
|
case IPV6_DROP_MEMBERSHIP:
|
|
|
|
{
|
|
|
|
struct ipv6_mreq mreq;
|
|
|
|
|
2007-08-24 23:16:39 -06:00
|
|
|
retv = -EPROTO;
|
|
|
|
if (inet_sk(sk)->is_icsk)
|
|
|
|
break;
|
|
|
|
|
2005-04-16 16:20:36 -06:00
|
|
|
retv = -EFAULT;
|
|
|
|
if (copy_from_user(&mreq, optval, sizeof(struct ipv6_mreq)))
|
|
|
|
break;
|
|
|
|
|
|
|
|
if (optname == IPV6_ADD_MEMBERSHIP)
|
|
|
|
retv = ipv6_sock_mc_join(sk, mreq.ipv6mr_ifindex, &mreq.ipv6mr_multiaddr);
|
|
|
|
else
|
|
|
|
retv = ipv6_sock_mc_drop(sk, mreq.ipv6mr_ifindex, &mreq.ipv6mr_multiaddr);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
case IPV6_JOIN_ANYCAST:
|
|
|
|
case IPV6_LEAVE_ANYCAST:
|
|
|
|
{
|
|
|
|
struct ipv6_mreq mreq;
|
|
|
|
|
|
|
|
if (optlen != sizeof(struct ipv6_mreq))
|
|
|
|
goto e_inval;
|
|
|
|
|
|
|
|
retv = -EFAULT;
|
|
|
|
if (copy_from_user(&mreq, optval, sizeof(struct ipv6_mreq)))
|
|
|
|
break;
|
|
|
|
|
|
|
|
if (optname == IPV6_JOIN_ANYCAST)
|
|
|
|
retv = ipv6_sock_ac_join(sk, mreq.ipv6mr_ifindex, &mreq.ipv6mr_acaddr);
|
|
|
|
else
|
|
|
|
retv = ipv6_sock_ac_drop(sk, mreq.ipv6mr_ifindex, &mreq.ipv6mr_acaddr);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
case MCAST_JOIN_GROUP:
|
|
|
|
case MCAST_LEAVE_GROUP:
|
|
|
|
{
|
|
|
|
struct group_req greq;
|
|
|
|
struct sockaddr_in6 *psin6;
|
|
|
|
|
|
|
|
retv = -EFAULT;
|
|
|
|
if (copy_from_user(&greq, optval, sizeof(struct group_req)))
|
|
|
|
break;
|
|
|
|
if (greq.gr_group.ss_family != AF_INET6) {
|
|
|
|
retv = -EADDRNOTAVAIL;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
psin6 = (struct sockaddr_in6 *)&greq.gr_group;
|
|
|
|
if (optname == MCAST_JOIN_GROUP)
|
|
|
|
retv = ipv6_sock_mc_join(sk, greq.gr_interface,
|
|
|
|
&psin6->sin6_addr);
|
|
|
|
else
|
|
|
|
retv = ipv6_sock_mc_drop(sk, greq.gr_interface,
|
|
|
|
&psin6->sin6_addr);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
case MCAST_JOIN_SOURCE_GROUP:
|
|
|
|
case MCAST_LEAVE_SOURCE_GROUP:
|
|
|
|
case MCAST_BLOCK_SOURCE:
|
|
|
|
case MCAST_UNBLOCK_SOURCE:
|
|
|
|
{
|
|
|
|
struct group_source_req greqs;
|
|
|
|
int omode, add;
|
|
|
|
|
|
|
|
if (optlen != sizeof(struct group_source_req))
|
|
|
|
goto e_inval;
|
|
|
|
if (copy_from_user(&greqs, optval, sizeof(greqs))) {
|
|
|
|
retv = -EFAULT;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
if (greqs.gsr_group.ss_family != AF_INET6 ||
|
|
|
|
greqs.gsr_source.ss_family != AF_INET6) {
|
|
|
|
retv = -EADDRNOTAVAIL;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
if (optname == MCAST_BLOCK_SOURCE) {
|
|
|
|
omode = MCAST_EXCLUDE;
|
|
|
|
add = 1;
|
|
|
|
} else if (optname == MCAST_UNBLOCK_SOURCE) {
|
|
|
|
omode = MCAST_EXCLUDE;
|
|
|
|
add = 0;
|
|
|
|
} else if (optname == MCAST_JOIN_SOURCE_GROUP) {
|
|
|
|
struct sockaddr_in6 *psin6;
|
|
|
|
|
|
|
|
psin6 = (struct sockaddr_in6 *)&greqs.gsr_group;
|
|
|
|
retv = ipv6_sock_mc_join(sk, greqs.gsr_interface,
|
|
|
|
&psin6->sin6_addr);
|
2005-06-21 14:58:25 -06:00
|
|
|
/* prior join w/ different source is ok */
|
|
|
|
if (retv && retv != -EADDRINUSE)
|
2005-04-16 16:20:36 -06:00
|
|
|
break;
|
|
|
|
omode = MCAST_INCLUDE;
|
|
|
|
add = 1;
|
2005-06-21 14:58:25 -06:00
|
|
|
} else /* MCAST_LEAVE_SOURCE_GROUP */ {
|
2005-04-16 16:20:36 -06:00
|
|
|
omode = MCAST_INCLUDE;
|
|
|
|
add = 0;
|
|
|
|
}
|
|
|
|
retv = ip6_mc_source(add, omode, sk, &greqs);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
case MCAST_MSFILTER:
|
|
|
|
{
|
|
|
|
extern int sysctl_mld_max_msf;
|
|
|
|
struct group_filter *gsf;
|
|
|
|
|
|
|
|
if (optlen < GROUP_FILTER_SIZE(0))
|
|
|
|
goto e_inval;
|
|
|
|
if (optlen > sysctl_optmem_max) {
|
|
|
|
retv = -ENOBUFS;
|
|
|
|
break;
|
|
|
|
}
|
2006-01-11 16:56:43 -07:00
|
|
|
gsf = kmalloc(optlen,GFP_KERNEL);
|
2007-10-09 02:59:42 -06:00
|
|
|
if (!gsf) {
|
2005-04-16 16:20:36 -06:00
|
|
|
retv = -ENOBUFS;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
retv = -EFAULT;
|
|
|
|
if (copy_from_user(gsf, optval, optlen)) {
|
|
|
|
kfree(gsf);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
/* numsrc >= (4G-140)/128 overflow in 32 bits */
|
|
|
|
if (gsf->gf_numsrc >= 0x1ffffffU ||
|
|
|
|
gsf->gf_numsrc > sysctl_mld_max_msf) {
|
|
|
|
kfree(gsf);
|
|
|
|
retv = -ENOBUFS;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
if (GROUP_FILTER_SIZE(gsf->gf_numsrc) > optlen) {
|
|
|
|
kfree(gsf);
|
|
|
|
retv = -EINVAL;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
retv = ip6_mc_msfilter(sk, gsf);
|
|
|
|
kfree(gsf);
|
|
|
|
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
case IPV6_ROUTER_ALERT:
|
|
|
|
retv = ip6_ra_control(sk, val, NULL);
|
|
|
|
break;
|
|
|
|
case IPV6_MTU_DISCOVER:
|
2007-04-20 16:53:27 -06:00
|
|
|
if (val<0 || val>3)
|
2005-04-16 16:20:36 -06:00
|
|
|
goto e_inval;
|
|
|
|
np->pmtudisc = val;
|
|
|
|
retv = 0;
|
|
|
|
break;
|
|
|
|
case IPV6_MTU:
|
|
|
|
if (val && val < IPV6_MIN_MTU)
|
|
|
|
goto e_inval;
|
|
|
|
np->frag_size = val;
|
|
|
|
retv = 0;
|
|
|
|
break;
|
|
|
|
case IPV6_RECVERR:
|
|
|
|
np->recverr = valbool;
|
|
|
|
if (!val)
|
|
|
|
skb_queue_purge(&sk->sk_error_queue);
|
|
|
|
retv = 0;
|
|
|
|
break;
|
|
|
|
case IPV6_FLOWINFO_SEND:
|
|
|
|
np->sndflow = valbool;
|
|
|
|
retv = 0;
|
|
|
|
break;
|
|
|
|
case IPV6_FLOWLABEL_MGR:
|
|
|
|
retv = ipv6_flowlabel_opt(sk, optval, optlen);
|
|
|
|
break;
|
|
|
|
case IPV6_IPSEC_POLICY:
|
|
|
|
case IPV6_XFRM_POLICY:
|
2005-08-06 07:33:15 -06:00
|
|
|
retv = -EPERM;
|
|
|
|
if (!capable(CAP_NET_ADMIN))
|
|
|
|
break;
|
2005-04-16 16:20:36 -06:00
|
|
|
retv = xfrm_user_policy(sk, optname, optval, optlen);
|
|
|
|
break;
|
|
|
|
|
|
|
|
}
|
|
|
|
release_sock(sk);
|
|
|
|
|
|
|
|
return retv;
|
|
|
|
|
|
|
|
e_inval:
|
|
|
|
release_sock(sk);
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
2006-03-20 23:45:21 -07:00
|
|
|
int ipv6_setsockopt(struct sock *sk, int level, int optname,
|
|
|
|
char __user *optval, 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;
|
|
|
|
|
|
|
|
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) {
|
|
|
|
lock_sock(sk);
|
|
|
|
err = nf_setsockopt(sk, PF_INET6, optname, optval,
|
|
|
|
optlen);
|
|
|
|
release_sock(sk);
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
return err;
|
|
|
|
}
|
|
|
|
|
2007-02-22 06:05:40 -07:00
|
|
|
EXPORT_SYMBOL(ipv6_setsockopt);
|
2006-03-20 23:45:21 -07:00
|
|
|
|
|
|
|
#ifdef CONFIG_COMPAT
|
|
|
|
int compat_ipv6_setsockopt(struct sock *sk, int level, int optname,
|
2006-03-20 23:48:35 -07:00
|
|
|
char __user *optval, int optlen)
|
2006-03-20 23:45:21 -07:00
|
|
|
{
|
|
|
|
int err;
|
|
|
|
|
|
|
|
if (level == SOL_IP && sk->sk_type != SOCK_RAW) {
|
2006-03-20 23:48:35 -07:00
|
|
|
if (udp_prot.compat_setsockopt != NULL)
|
|
|
|
return udp_prot.compat_setsockopt(sk, level, optname,
|
|
|
|
optval, optlen);
|
|
|
|
return udp_prot.setsockopt(sk, level, optname, optval, optlen);
|
2006-03-20 23:45:21 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
if (level != SOL_IPV6)
|
|
|
|
return -ENOPROTOOPT;
|
|
|
|
|
|
|
|
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 &&
|
2006-03-20 23:48:35 -07:00
|
|
|
optname != IPV6_XFRM_POLICY) {
|
2006-03-20 23:45:21 -07:00
|
|
|
lock_sock(sk);
|
2006-03-20 23:48:35 -07:00
|
|
|
err = compat_nf_setsockopt(sk, PF_INET6, optname,
|
|
|
|
optval, optlen);
|
2006-03-20 23:45:21 -07:00
|
|
|
release_sock(sk);
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
return err;
|
|
|
|
}
|
2006-03-20 23:48:35 -07:00
|
|
|
|
|
|
|
EXPORT_SYMBOL(compat_ipv6_setsockopt);
|
2006-03-20 23:45:21 -07:00
|
|
|
#endif
|
|
|
|
|
2007-03-07 13:50:46 -07:00
|
|
|
static int ipv6_getsockopt_sticky(struct sock *sk, struct ipv6_txoptions *opt,
|
2007-03-18 18:35:57 -06:00
|
|
|
int optname, char __user *optval, int len)
|
[IPV6]: Support several new sockopt / ancillary data in Advanced API (RFC3542).
Support several new socket options / ancillary data:
IPV6_RECVPKTINFO, IPV6_PKTINFO,
IPV6_RECVHOPOPTS, IPV6_HOPOPTS,
IPV6_RECVDSTOPTS, IPV6_DSTOPTS, IPV6_RTHDRDSTOPTS,
IPV6_RECVRTHDR, IPV6_RTHDR,
IPV6_RECVHOPOPTS, IPV6_HOPOPTS
Old semantics are preserved as IPV6_2292xxxx so that
we can maintain backward compatibility.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-09-07 18:59:17 -06:00
|
|
|
{
|
2007-03-07 13:50:46 -07:00
|
|
|
struct ipv6_opt_hdr *hdr;
|
|
|
|
|
2007-03-18 18:35:57 -06:00
|
|
|
if (!opt)
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
switch(optname) {
|
|
|
|
case IPV6_HOPOPTS:
|
|
|
|
hdr = opt->hopopt;
|
|
|
|
break;
|
|
|
|
case IPV6_RTHDRDSTOPTS:
|
|
|
|
hdr = opt->dst0opt;
|
|
|
|
break;
|
|
|
|
case IPV6_RTHDR:
|
|
|
|
hdr = (struct ipv6_opt_hdr *)opt->srcrt;
|
|
|
|
break;
|
|
|
|
case IPV6_DSTOPTS:
|
|
|
|
hdr = opt->dst1opt;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
return -EINVAL; /* should not happen */
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!hdr)
|
[IPV6]: Support several new sockopt / ancillary data in Advanced API (RFC3542).
Support several new socket options / ancillary data:
IPV6_RECVPKTINFO, IPV6_PKTINFO,
IPV6_RECVHOPOPTS, IPV6_HOPOPTS,
IPV6_RECVDSTOPTS, IPV6_DSTOPTS, IPV6_RTHDRDSTOPTS,
IPV6_RECVRTHDR, IPV6_RTHDR,
IPV6_RECVHOPOPTS, IPV6_HOPOPTS
Old semantics are preserved as IPV6_2292xxxx so that
we can maintain backward compatibility.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-09-07 18:59:17 -06:00
|
|
|
return 0;
|
2007-03-07 13:50:46 -07:00
|
|
|
|
2007-03-09 17:19:17 -07:00
|
|
|
len = min_t(unsigned int, len, ipv6_optlen(hdr));
|
2007-08-15 16:07:30 -06:00
|
|
|
if (copy_to_user(optval, hdr, len))
|
[IPV6]: Support several new sockopt / ancillary data in Advanced API (RFC3542).
Support several new socket options / ancillary data:
IPV6_RECVPKTINFO, IPV6_PKTINFO,
IPV6_RECVHOPOPTS, IPV6_HOPOPTS,
IPV6_RECVDSTOPTS, IPV6_DSTOPTS, IPV6_RTHDRDSTOPTS,
IPV6_RECVRTHDR, IPV6_RTHDR,
IPV6_RECVHOPOPTS, IPV6_HOPOPTS
Old semantics are preserved as IPV6_2292xxxx so that
we can maintain backward compatibility.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-09-07 18:59:17 -06:00
|
|
|
return -EFAULT;
|
2007-03-08 21:48:23 -07:00
|
|
|
return ipv6_optlen(hdr);
|
[IPV6]: Support several new sockopt / ancillary data in Advanced API (RFC3542).
Support several new socket options / ancillary data:
IPV6_RECVPKTINFO, IPV6_PKTINFO,
IPV6_RECVHOPOPTS, IPV6_HOPOPTS,
IPV6_RECVDSTOPTS, IPV6_DSTOPTS, IPV6_RTHDRDSTOPTS,
IPV6_RECVRTHDR, IPV6_RTHDR,
IPV6_RECVHOPOPTS, IPV6_HOPOPTS
Old semantics are preserved as IPV6_2292xxxx so that
we can maintain backward compatibility.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-09-07 18:59:17 -06:00
|
|
|
}
|
|
|
|
|
2006-03-20 23:45:21 -07:00
|
|
|
static int do_ipv6_getsockopt(struct sock *sk, int level, int optname,
|
2005-04-16 16:20:36 -06:00
|
|
|
char __user *optval, int __user *optlen)
|
|
|
|
{
|
|
|
|
struct ipv6_pinfo *np = inet6_sk(sk);
|
|
|
|
int len;
|
|
|
|
int val;
|
|
|
|
|
|
|
|
if (get_user(len, optlen))
|
|
|
|
return -EFAULT;
|
|
|
|
switch (optname) {
|
|
|
|
case IPV6_ADDRFORM:
|
|
|
|
if (sk->sk_protocol != IPPROTO_UDP &&
|
2006-11-27 12:10:57 -07:00
|
|
|
sk->sk_protocol != IPPROTO_UDPLITE &&
|
2005-04-16 16:20:36 -06:00
|
|
|
sk->sk_protocol != IPPROTO_TCP)
|
|
|
|
return -EINVAL;
|
|
|
|
if (sk->sk_state != TCP_ESTABLISHED)
|
|
|
|
return -ENOTCONN;
|
|
|
|
val = sk->sk_family;
|
|
|
|
break;
|
|
|
|
case MCAST_MSFILTER:
|
|
|
|
{
|
|
|
|
struct group_filter gsf;
|
|
|
|
int err;
|
|
|
|
|
|
|
|
if (len < GROUP_FILTER_SIZE(0))
|
|
|
|
return -EINVAL;
|
|
|
|
if (copy_from_user(&gsf, optval, GROUP_FILTER_SIZE(0)))
|
|
|
|
return -EFAULT;
|
|
|
|
lock_sock(sk);
|
|
|
|
err = ip6_mc_msfget(sk, &gsf,
|
|
|
|
(struct group_filter __user *)optval, optlen);
|
|
|
|
release_sock(sk);
|
|
|
|
return err;
|
|
|
|
}
|
|
|
|
|
[IPV6]: Support several new sockopt / ancillary data in Advanced API (RFC3542).
Support several new socket options / ancillary data:
IPV6_RECVPKTINFO, IPV6_PKTINFO,
IPV6_RECVHOPOPTS, IPV6_HOPOPTS,
IPV6_RECVDSTOPTS, IPV6_DSTOPTS, IPV6_RTHDRDSTOPTS,
IPV6_RECVRTHDR, IPV6_RTHDR,
IPV6_RECVHOPOPTS, IPV6_HOPOPTS
Old semantics are preserved as IPV6_2292xxxx so that
we can maintain backward compatibility.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-09-07 18:59:17 -06:00
|
|
|
case IPV6_2292PKTOPTIONS:
|
2005-04-16 16:20:36 -06:00
|
|
|
{
|
|
|
|
struct msghdr msg;
|
|
|
|
struct sk_buff *skb;
|
|
|
|
|
|
|
|
if (sk->sk_type != SOCK_STREAM)
|
|
|
|
return -ENOPROTOOPT;
|
|
|
|
|
|
|
|
msg.msg_control = optval;
|
|
|
|
msg.msg_controllen = len;
|
|
|
|
msg.msg_flags = 0;
|
|
|
|
|
|
|
|
lock_sock(sk);
|
|
|
|
skb = np->pktoptions;
|
|
|
|
if (skb)
|
|
|
|
atomic_inc(&skb->users);
|
|
|
|
release_sock(sk);
|
|
|
|
|
|
|
|
if (skb) {
|
|
|
|
int err = datagram_recv_ctl(sk, &msg, skb);
|
|
|
|
kfree_skb(skb);
|
|
|
|
if (err)
|
|
|
|
return err;
|
|
|
|
} else {
|
|
|
|
if (np->rxopt.bits.rxinfo) {
|
|
|
|
struct in6_pktinfo src_info;
|
|
|
|
src_info.ipi6_ifindex = np->mcast_oif;
|
|
|
|
ipv6_addr_copy(&src_info.ipi6_addr, &np->daddr);
|
|
|
|
put_cmsg(&msg, SOL_IPV6, IPV6_PKTINFO, sizeof(src_info), &src_info);
|
|
|
|
}
|
|
|
|
if (np->rxopt.bits.rxhlim) {
|
|
|
|
int hlim = np->mcast_hops;
|
|
|
|
put_cmsg(&msg, SOL_IPV6, IPV6_HOPLIMIT, sizeof(hlim), &hlim);
|
|
|
|
}
|
[IPV6]: Support several new sockopt / ancillary data in Advanced API (RFC3542).
Support several new socket options / ancillary data:
IPV6_RECVPKTINFO, IPV6_PKTINFO,
IPV6_RECVHOPOPTS, IPV6_HOPOPTS,
IPV6_RECVDSTOPTS, IPV6_DSTOPTS, IPV6_RTHDRDSTOPTS,
IPV6_RECVRTHDR, IPV6_RTHDR,
IPV6_RECVHOPOPTS, IPV6_HOPOPTS
Old semantics are preserved as IPV6_2292xxxx so that
we can maintain backward compatibility.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-09-07 18:59:17 -06:00
|
|
|
if (np->rxopt.bits.rxoinfo) {
|
|
|
|
struct in6_pktinfo src_info;
|
|
|
|
src_info.ipi6_ifindex = np->mcast_oif;
|
|
|
|
ipv6_addr_copy(&src_info.ipi6_addr, &np->daddr);
|
|
|
|
put_cmsg(&msg, SOL_IPV6, IPV6_2292PKTINFO, sizeof(src_info), &src_info);
|
|
|
|
}
|
|
|
|
if (np->rxopt.bits.rxohlim) {
|
|
|
|
int hlim = np->mcast_hops;
|
|
|
|
put_cmsg(&msg, SOL_IPV6, IPV6_2292HOPLIMIT, sizeof(hlim), &hlim);
|
|
|
|
}
|
2005-04-16 16:20:36 -06:00
|
|
|
}
|
|
|
|
len -= msg.msg_controllen;
|
|
|
|
return put_user(len, optlen);
|
|
|
|
}
|
|
|
|
case IPV6_MTU:
|
|
|
|
{
|
|
|
|
struct dst_entry *dst;
|
2007-02-09 07:24:49 -07:00
|
|
|
val = 0;
|
2005-04-16 16:20:36 -06:00
|
|
|
lock_sock(sk);
|
|
|
|
dst = sk_dst_get(sk);
|
|
|
|
if (dst) {
|
|
|
|
val = dst_mtu(dst);
|
|
|
|
dst_release(dst);
|
|
|
|
}
|
|
|
|
release_sock(sk);
|
|
|
|
if (!val)
|
|
|
|
return -ENOTCONN;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
case IPV6_V6ONLY:
|
|
|
|
val = np->ipv6only;
|
|
|
|
break;
|
|
|
|
|
[IPV6]: Support several new sockopt / ancillary data in Advanced API (RFC3542).
Support several new socket options / ancillary data:
IPV6_RECVPKTINFO, IPV6_PKTINFO,
IPV6_RECVHOPOPTS, IPV6_HOPOPTS,
IPV6_RECVDSTOPTS, IPV6_DSTOPTS, IPV6_RTHDRDSTOPTS,
IPV6_RECVRTHDR, IPV6_RTHDR,
IPV6_RECVHOPOPTS, IPV6_HOPOPTS
Old semantics are preserved as IPV6_2292xxxx so that
we can maintain backward compatibility.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-09-07 18:59:17 -06:00
|
|
|
case IPV6_RECVPKTINFO:
|
2005-04-16 16:20:36 -06:00
|
|
|
val = np->rxopt.bits.rxinfo;
|
|
|
|
break;
|
|
|
|
|
[IPV6]: Support several new sockopt / ancillary data in Advanced API (RFC3542).
Support several new socket options / ancillary data:
IPV6_RECVPKTINFO, IPV6_PKTINFO,
IPV6_RECVHOPOPTS, IPV6_HOPOPTS,
IPV6_RECVDSTOPTS, IPV6_DSTOPTS, IPV6_RTHDRDSTOPTS,
IPV6_RECVRTHDR, IPV6_RTHDR,
IPV6_RECVHOPOPTS, IPV6_HOPOPTS
Old semantics are preserved as IPV6_2292xxxx so that
we can maintain backward compatibility.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-09-07 18:59:17 -06:00
|
|
|
case IPV6_2292PKTINFO:
|
|
|
|
val = np->rxopt.bits.rxoinfo;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case IPV6_RECVHOPLIMIT:
|
2005-04-16 16:20:36 -06:00
|
|
|
val = np->rxopt.bits.rxhlim;
|
|
|
|
break;
|
|
|
|
|
[IPV6]: Support several new sockopt / ancillary data in Advanced API (RFC3542).
Support several new socket options / ancillary data:
IPV6_RECVPKTINFO, IPV6_PKTINFO,
IPV6_RECVHOPOPTS, IPV6_HOPOPTS,
IPV6_RECVDSTOPTS, IPV6_DSTOPTS, IPV6_RTHDRDSTOPTS,
IPV6_RECVRTHDR, IPV6_RTHDR,
IPV6_RECVHOPOPTS, IPV6_HOPOPTS
Old semantics are preserved as IPV6_2292xxxx so that
we can maintain backward compatibility.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-09-07 18:59:17 -06:00
|
|
|
case IPV6_2292HOPLIMIT:
|
|
|
|
val = np->rxopt.bits.rxohlim;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case IPV6_RECVRTHDR:
|
2005-04-16 16:20:36 -06:00
|
|
|
val = np->rxopt.bits.srcrt;
|
|
|
|
break;
|
|
|
|
|
[IPV6]: Support several new sockopt / ancillary data in Advanced API (RFC3542).
Support several new socket options / ancillary data:
IPV6_RECVPKTINFO, IPV6_PKTINFO,
IPV6_RECVHOPOPTS, IPV6_HOPOPTS,
IPV6_RECVDSTOPTS, IPV6_DSTOPTS, IPV6_RTHDRDSTOPTS,
IPV6_RECVRTHDR, IPV6_RTHDR,
IPV6_RECVHOPOPTS, IPV6_HOPOPTS
Old semantics are preserved as IPV6_2292xxxx so that
we can maintain backward compatibility.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-09-07 18:59:17 -06:00
|
|
|
case IPV6_2292RTHDR:
|
|
|
|
val = np->rxopt.bits.osrcrt;
|
|
|
|
break;
|
|
|
|
|
2005-04-16 16:20:36 -06:00
|
|
|
case IPV6_HOPOPTS:
|
[IPV6]: Support several new sockopt / ancillary data in Advanced API (RFC3542).
Support several new socket options / ancillary data:
IPV6_RECVPKTINFO, IPV6_PKTINFO,
IPV6_RECVHOPOPTS, IPV6_HOPOPTS,
IPV6_RECVDSTOPTS, IPV6_DSTOPTS, IPV6_RTHDRDSTOPTS,
IPV6_RECVRTHDR, IPV6_RTHDR,
IPV6_RECVHOPOPTS, IPV6_HOPOPTS
Old semantics are preserved as IPV6_2292xxxx so that
we can maintain backward compatibility.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-09-07 18:59:17 -06:00
|
|
|
case IPV6_RTHDRDSTOPTS:
|
|
|
|
case IPV6_RTHDR:
|
|
|
|
case IPV6_DSTOPTS:
|
|
|
|
{
|
|
|
|
|
|
|
|
lock_sock(sk);
|
2007-03-07 13:50:46 -07:00
|
|
|
len = ipv6_getsockopt_sticky(sk, np->opt,
|
2007-03-18 18:35:57 -06:00
|
|
|
optname, optval, len);
|
[IPV6]: Support several new sockopt / ancillary data in Advanced API (RFC3542).
Support several new socket options / ancillary data:
IPV6_RECVPKTINFO, IPV6_PKTINFO,
IPV6_RECVHOPOPTS, IPV6_HOPOPTS,
IPV6_RECVDSTOPTS, IPV6_DSTOPTS, IPV6_RTHDRDSTOPTS,
IPV6_RECVRTHDR, IPV6_RTHDR,
IPV6_RECVHOPOPTS, IPV6_HOPOPTS
Old semantics are preserved as IPV6_2292xxxx so that
we can maintain backward compatibility.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-09-07 18:59:17 -06:00
|
|
|
release_sock(sk);
|
|
|
|
return put_user(len, optlen);
|
|
|
|
}
|
|
|
|
|
|
|
|
case IPV6_RECVHOPOPTS:
|
2005-04-16 16:20:36 -06:00
|
|
|
val = np->rxopt.bits.hopopts;
|
|
|
|
break;
|
|
|
|
|
[IPV6]: Support several new sockopt / ancillary data in Advanced API (RFC3542).
Support several new socket options / ancillary data:
IPV6_RECVPKTINFO, IPV6_PKTINFO,
IPV6_RECVHOPOPTS, IPV6_HOPOPTS,
IPV6_RECVDSTOPTS, IPV6_DSTOPTS, IPV6_RTHDRDSTOPTS,
IPV6_RECVRTHDR, IPV6_RTHDR,
IPV6_RECVHOPOPTS, IPV6_HOPOPTS
Old semantics are preserved as IPV6_2292xxxx so that
we can maintain backward compatibility.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-09-07 18:59:17 -06:00
|
|
|
case IPV6_2292HOPOPTS:
|
|
|
|
val = np->rxopt.bits.ohopopts;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case IPV6_RECVDSTOPTS:
|
2005-04-16 16:20:36 -06:00
|
|
|
val = np->rxopt.bits.dstopts;
|
|
|
|
break;
|
|
|
|
|
[IPV6]: Support several new sockopt / ancillary data in Advanced API (RFC3542).
Support several new socket options / ancillary data:
IPV6_RECVPKTINFO, IPV6_PKTINFO,
IPV6_RECVHOPOPTS, IPV6_HOPOPTS,
IPV6_RECVDSTOPTS, IPV6_DSTOPTS, IPV6_RTHDRDSTOPTS,
IPV6_RECVRTHDR, IPV6_RTHDR,
IPV6_RECVHOPOPTS, IPV6_HOPOPTS
Old semantics are preserved as IPV6_2292xxxx so that
we can maintain backward compatibility.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2005-09-07 18:59:17 -06:00
|
|
|
case IPV6_2292DSTOPTS:
|
|
|
|
val = np->rxopt.bits.odstopts;
|
|
|
|
break;
|
|
|
|
|
2005-09-07 19:19:03 -06:00
|
|
|
case IPV6_TCLASS:
|
|
|
|
val = np->tclass;
|
2006-09-13 21:08:07 -06:00
|
|
|
if (val < 0)
|
|
|
|
val = 0;
|
2005-09-07 19:19:03 -06:00
|
|
|
break;
|
|
|
|
|
|
|
|
case IPV6_RECVTCLASS:
|
|
|
|
val = np->rxopt.bits.rxtclass;
|
|
|
|
break;
|
|
|
|
|
2005-04-16 16:20:36 -06:00
|
|
|
case IPV6_FLOWINFO:
|
|
|
|
val = np->rxopt.bits.rxflow;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case IPV6_UNICAST_HOPS:
|
|
|
|
case IPV6_MULTICAST_HOPS:
|
2006-12-12 18:09:49 -07:00
|
|
|
{
|
|
|
|
struct dst_entry *dst;
|
|
|
|
|
|
|
|
if (optname == IPV6_UNICAST_HOPS)
|
|
|
|
val = np->hop_limit;
|
|
|
|
else
|
|
|
|
val = np->mcast_hops;
|
|
|
|
|
|
|
|
dst = sk_dst_get(sk);
|
|
|
|
if (dst) {
|
|
|
|
if (val < 0)
|
|
|
|
val = dst_metric(dst, RTAX_HOPLIMIT);
|
|
|
|
if (val < 0)
|
|
|
|
val = ipv6_get_hoplimit(dst->dev);
|
|
|
|
dst_release(dst);
|
|
|
|
}
|
|
|
|
if (val < 0)
|
|
|
|
val = ipv6_devconf.hop_limit;
|
2005-04-16 16:20:36 -06:00
|
|
|
break;
|
2006-12-12 18:09:49 -07:00
|
|
|
}
|
2005-04-16 16:20:36 -06:00
|
|
|
|
|
|
|
case IPV6_MULTICAST_LOOP:
|
|
|
|
val = np->mc_loop;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case IPV6_MULTICAST_IF:
|
|
|
|
val = np->mcast_oif;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case IPV6_MTU_DISCOVER:
|
|
|
|
val = np->pmtudisc;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case IPV6_RECVERR:
|
|
|
|
val = np->recverr;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case IPV6_FLOWINFO_SEND:
|
|
|
|
val = np->sndflow;
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
2007-12-16 14:39:57 -07:00
|
|
|
return -ENOPROTOOPT;
|
2005-04-16 16:20:36 -06:00
|
|
|
}
|
|
|
|
len = min_t(unsigned int, sizeof(int), len);
|
|
|
|
if(put_user(len, optlen))
|
|
|
|
return -EFAULT;
|
|
|
|
if(copy_to_user(optval,&val,len))
|
|
|
|
return -EFAULT;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2006-03-20 23:45:21 -07:00
|
|
|
int 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;
|
|
|
|
|
|
|
|
err = do_ipv6_getsockopt(sk, level, optname, optval, optlen);
|
|
|
|
#ifdef CONFIG_NETFILTER
|
2007-12-16 14:39:57 -07:00
|
|
|
/* we need to exclude all possible ENOPROTOOPTs except default case */
|
|
|
|
if (err == -ENOPROTOOPT && optname != IPV6_2292PKTOPTIONS) {
|
2006-03-20 23:45:21 -07:00
|
|
|
int len;
|
|
|
|
|
|
|
|
if (get_user(len, optlen))
|
|
|
|
return -EFAULT;
|
|
|
|
|
|
|
|
lock_sock(sk);
|
|
|
|
err = nf_getsockopt(sk, PF_INET6, optname, optval,
|
|
|
|
&len);
|
|
|
|
release_sock(sk);
|
|
|
|
if (err >= 0)
|
|
|
|
err = put_user(len, optlen);
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
return err;
|
|
|
|
}
|
|
|
|
|
2007-02-22 06:05:40 -07:00
|
|
|
EXPORT_SYMBOL(ipv6_getsockopt);
|
|
|
|
|
2006-03-20 23:45:21 -07:00
|
|
|
#ifdef CONFIG_COMPAT
|
|
|
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int compat_ipv6_getsockopt(struct sock *sk, int level, int optname,
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2006-03-20 23:48:35 -07:00
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char __user *optval, int __user *optlen)
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2006-03-20 23:45:21 -07:00
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{
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int err;
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if (level == SOL_IP && sk->sk_type != SOCK_RAW) {
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2006-03-20 23:48:35 -07:00
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if (udp_prot.compat_getsockopt != NULL)
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return udp_prot.compat_getsockopt(sk, level, optname,
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optval, optlen);
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return udp_prot.getsockopt(sk, level, optname, optval, optlen);
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2006-03-20 23:45:21 -07:00
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}
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2006-03-20 23:48:35 -07:00
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if (level != SOL_IPV6)
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2006-03-20 23:45:21 -07:00
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return -ENOPROTOOPT;
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err = do_ipv6_getsockopt(sk, level, optname, optval, optlen);
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#ifdef CONFIG_NETFILTER
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2007-12-16 14:39:57 -07:00
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/* we need to exclude all possible ENOPROTOOPTs except default case */
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if (err == -ENOPROTOOPT && optname != IPV6_2292PKTOPTIONS) {
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2006-03-20 23:45:21 -07:00
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int len;
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if (get_user(len, optlen))
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return -EFAULT;
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lock_sock(sk);
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2006-03-20 23:48:35 -07:00
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err = compat_nf_getsockopt(sk, PF_INET6,
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optname, optval, &len);
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2006-03-20 23:45:21 -07:00
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release_sock(sk);
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if (err >= 0)
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err = put_user(len, optlen);
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}
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#endif
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return err;
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}
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2006-03-20 23:48:35 -07:00
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EXPORT_SYMBOL(compat_ipv6_getsockopt);
|
2006-03-20 23:45:21 -07:00
|
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#endif
|
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|
2005-04-16 16:20:36 -06:00
|
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void __init ipv6_packet_init(void)
|
|
|
|
{
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|
|
dev_add_pack(&ipv6_packet_type);
|
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|
}
|
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|
|
void ipv6_packet_cleanup(void)
|
|
|
|
{
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|
|
dev_remove_pack(&ipv6_packet_type);
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|
}
|