*
* 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
struct ip6_ra_chain *ip6_ra_chain;
DEFINE_RWLOCK(ip6_ra_lock);
-int ip6_ra_control(struct sock *sk, int sel, void (*destructor)(struct sock *))
+int ip6_ra_control(struct sock *sk, int sel)
{
struct ip6_ra_chain *ra, *new_ra, **rap;
/* RA packet may be delivered ONLY to IPPROTO_RAW socket */
- if (sk->sk_type != SOCK_RAW || inet_sk(sk)->num != IPPROTO_RAW)
- return -EINVAL;
+ if (sk->sk_type != SOCK_RAW || inet_sk(sk)->inet_num != IPPROTO_RAW)
+ return -ENOPROTOOPT;
new_ra = (sel>=0) ? kmalloc(sizeof(*new_ra), GFP_KERNEL) : NULL;
*rap = ra->next;
write_unlock_bh(&ip6_ra_lock);
- if (ra->destructor)
- ra->destructor(sk);
sock_put(sk);
kfree(ra);
return 0;
}
new_ra->sk = sk;
new_ra->sel = sel;
- new_ra->destructor = destructor;
new_ra->next = ra;
*rap = new_ra;
sock_hold(sk);
if (inet_sk(sk)->is_icsk) {
if (opt &&
!((1 << sk->sk_state) & (TCPF_LISTEN | TCPF_CLOSE)) &&
- inet_sk(sk)->daddr != LOOPBACK4_IPV6) {
+ inet_sk(sk)->inet_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);
}
static int do_ipv6_setsockopt(struct sock *sk, int level, int optname,
- char __user *optval, int optlen)
+ char __user *optval, unsigned int optlen)
{
struct ipv6_pinfo *np = inet6_sk(sk);
struct net *net = sock_net(sk);
if (sk->sk_type == SOCK_RAW)
break;
- if (sk->sk_protocol != IPPROTO_UDP &&
- sk->sk_protocol != IPPROTO_UDPLITE &&
- sk->sk_protocol != IPPROTO_TCP)
+ 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) {
if (opt)
sock_kfree_s(sk, opt, opt->tot_len);
pktopt = xchg(&np->pktoptions, NULL);
- if (pktopt)
- kfree_skb(pktopt);
+ kfree_skb(pktopt);
sk->sk_destruct = inet_sock_destruct;
/*
case IPV6_V6ONLY:
if (optlen < sizeof(int) ||
- inet_sk(sk)->num)
+ inet_sk(sk)->inet_num)
goto e_inval;
np->ipv6only = valbool;
retv = 0;
goto e_inval;
if (val < -1 || val > 0xff)
goto e_inval;
+ /* RFC 3542, 6.5: default traffic class of 0x0 */
+ if (val == -1)
+ val = 0;
np->tclass = val;
retv = 0;
break;
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 (optval == NULL)
+ goto e_inval;
+ 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);
}
/* routing header option needs extra check */
+ retv = -EINVAL;
if (optname == IPV6_RTHDR && opt && opt->srcrt) {
struct ipv6_rt_hdr *rthdr = opt->srcrt;
switch (rthdr->type) {
#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
case IPV6_SRCRT_TYPE_2:
+ if (rthdr->hdrlen != 2 ||
+ rthdr->segments_left != 1)
+ goto sticky_done;
+
break;
#endif
default:
goto sticky_done;
}
-
- if ((rthdr->hdrlen & 1) ||
- (rthdr->hdrlen >> 1) != rthdr->segments_left)
- goto sticky_done;
}
retv = 0;
break;
}
+ case IPV6_PKTINFO:
+ {
+ struct in6_pktinfo pkt;
+
+ if (optlen == 0)
+ goto e_inval;
+ else if (optlen < sizeof(struct in6_pktinfo) || optval == NULL)
+ goto e_inval;
+
+ if (copy_from_user(&pkt, optval, sizeof(struct in6_pktinfo))) {
+ retv = -EFAULT;
+ break;
+ }
+ if (sk->sk_bound_dev_if && pkt.ipi6_ifindex != sk->sk_bound_dev_if)
+ goto e_inval;
+
+ np->sticky_pktinfo.ipi6_ifindex = pkt.ipi6_ifindex;
+ ipv6_addr_copy(&np->sticky_pktinfo.ipi6_addr, &pkt.ipi6_addr);
+ retv = 0;
+ break;
+ }
+
case IPV6_2292PKTOPTIONS:
{
struct ipv6_txoptions *opt = NULL;
fl.fl6_flowlabel = 0;
fl.oif = sk->sk_bound_dev_if;
+ fl.mark = sk->sk_mark;
if (optlen == 0)
goto update;
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 (val) {
+ struct net_device *dev;
+
if (sk->sk_bound_dev_if && sk->sk_bound_dev_if != val)
goto e_inval;
- if (__dev_get_by_index(net, val) == NULL) {
+ dev = dev_get_by_index(net, val);
+ if (!dev) {
retv = -ENODEV;
break;
}
+ dev_put(dev);
}
np->mcast_oif = val;
retv = 0;
case IPV6_ROUTER_ALERT:
if (optlen < sizeof(int))
goto e_inval;
- retv = ip6_ra_control(sk, val, NULL);
+ retv = ip6_ra_control(sk, val);
break;
case IPV6_MTU_DISCOVER:
if (optlen < sizeof(int))
goto e_inval;
- if (val<0 || val>3)
+ if (val < IP_PMTUDISC_DONT || val > IP_PMTUDISC_PROBE)
goto e_inval;
np->pmtudisc = val;
retv = 0;
}
int ipv6_setsockopt(struct sock *sk, int level, int optname,
- char __user *optval, int optlen)
+ char __user *optval, unsigned int optlen)
{
int err;
#ifdef CONFIG_COMPAT
int compat_ipv6_setsockopt(struct sock *sk, int level, int optname,
- char __user *optval, int optlen)
+ char __user *optval, unsigned int optlen)
{
int err;
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);
} 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);
+ src_info.ipi6_ifindex = np->mcast_oif ? np->mcast_oif :
+ np->sticky_pktinfo.ipi6_ifindex;
+ np->mcast_oif? ipv6_addr_copy(&src_info.ipi6_addr, &np->daddr) :
+ ipv6_addr_copy(&src_info.ipi6_addr, &(np->sticky_pktinfo.ipi6_addr));
put_cmsg(&msg, SOL_IPV6, IPV6_PKTINFO, sizeof(src_info), &src_info);
}
if (np->rxopt.bits.rxhlim) {
}
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);
+ src_info.ipi6_ifindex = np->mcast_oif ? np->mcast_oif :
+ np->sticky_pktinfo.ipi6_ifindex;
+ np->mcast_oif? ipv6_addr_copy(&src_info.ipi6_addr, &np->daddr) :
+ ipv6_addr_copy(&src_info.ipi6_addr, &(np->sticky_pktinfo.ipi6_addr));
put_cmsg(&msg, SOL_IPV6, IPV6_2292PKTINFO, sizeof(src_info), &src_info);
}
if (np->rxopt.bits.rxohlim) {
case IPV6_TCLASS:
val = np->tclass;
- if (val < 0)
- val = 0;
break;
case IPV6_RECVTCLASS:
dst_release(dst);
}
if (val < 0)
- val = ipv6_devconf.hop_limit;
+ val = sock_net(sk)->ipv6.devconf_all->hop_limit;
break;
}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff