#include <linux/skbuff.h>
#include <linux/ip.h>
#include <linux/icmp.h>
+#include <linux/inetdevice.h>
#include <linux/netdevice.h>
#include <net/sock.h>
#include <net/ip.h>
#include <net/icmp.h>
-#include <net/tcp.h>
-#include <linux/tcp.h>
+#include <net/tcp_states.h>
#include <linux/udp.h>
#include <linux/igmp.h>
#include <linux/netfilter.h>
}
-void ip_cmsg_recv_retopts(struct msghdr *msg, struct sk_buff *skb)
+static void ip_cmsg_recv_retopts(struct msghdr *msg, struct sk_buff *skb)
{
unsigned char optbuf[sizeof(struct ip_options) + 40];
struct ip_options * opt = (struct ip_options*)optbuf;
void ip_cmsg_recv(struct msghdr *msg, struct sk_buff *skb)
{
- struct inet_opt *inet = inet_sk(skb->sk);
+ struct inet_sock *inet = inet_sk(skb->sk);
unsigned flags = inet->cmsg_flags;
/* Ordered by supposed usage frequency */
struct cmsghdr *cmsg;
for (cmsg = CMSG_FIRSTHDR(msg); cmsg; cmsg = CMSG_NXTHDR(msg, cmsg)) {
- if (cmsg->cmsg_len < sizeof(struct cmsghdr) ||
- (unsigned long)(((char*)cmsg - (char*)msg->msg_control)
- + cmsg->cmsg_len) > msg->msg_controllen) {
+ if (!CMSG_OK(msg, cmsg))
return -EINVAL;
- }
if (cmsg->cmsg_level != SOL_IP)
continue;
switch (cmsg->cmsg_type) {
case IP_RETOPTS:
err = cmsg->cmsg_len - CMSG_ALIGN(sizeof(struct cmsghdr));
- err = ip_options_get(&ipc->opt, CMSG_DATA(cmsg), err < 40 ? err : 40, 0);
+ err = ip_options_get(&ipc->opt, CMSG_DATA(cmsg), err < 40 ? err : 40);
if (err)
return err;
break;
sent to multicast group to reach destination designated router.
*/
struct ip_ra_chain *ip_ra_chain;
-rwlock_t ip_ra_lock = RW_LOCK_UNLOCKED;
+DEFINE_RWLOCK(ip_ra_lock);
int ip_ra_control(struct sock *sk, unsigned char on, void (*destructor)(struct sock *))
{
if (ra->sk == sk) {
if (on) {
write_unlock_bh(&ip_ra_lock);
- if (new_ra)
- kfree(new_ra);
+ kfree(new_ra);
return -EADDRINUSE;
}
*rap = ra->next;
void ip_icmp_error(struct sock *sk, struct sk_buff *skb, int err,
u16 port, u32 info, u8 *payload)
{
- struct inet_opt *inet = inet_sk(sk);
+ struct inet_sock *inet = inet_sk(sk);
struct sock_exterr_skb *serr;
if (!inet->recverr)
void ip_local_error(struct sock *sk, int err, u32 daddr, u16 port, u32 info)
{
- struct inet_opt *inet = inet_sk(sk);
+ struct inet_sock *inet = inet_sk(sk);
struct sock_exterr_skb *serr;
struct iphdr *iph;
struct sk_buff *skb;
sin = &errhdr.offender;
sin->sin_family = AF_UNSPEC;
if (serr->ee.ee_origin == SO_EE_ORIGIN_ICMP) {
- struct inet_opt *inet = inet_sk(sk);
+ struct inet_sock *inet = inet_sk(sk);
sin->sin_family = AF_INET;
sin->sin_addr.s_addr = skb->nh.iph->saddr;
err = copied;
/* Reset and regenerate socket error */
- spin_lock_irq(&sk->sk_error_queue.lock);
+ spin_lock_bh(&sk->sk_error_queue.lock);
sk->sk_err = 0;
if ((skb2 = skb_peek(&sk->sk_error_queue)) != NULL) {
sk->sk_err = SKB_EXT_ERR(skb2)->ee.ee_errno;
- spin_unlock_irq(&sk->sk_error_queue.lock);
+ spin_unlock_bh(&sk->sk_error_queue.lock);
sk->sk_error_report(sk);
} else
- spin_unlock_irq(&sk->sk_error_queue.lock);
+ spin_unlock_bh(&sk->sk_error_queue.lock);
out_free_skb:
kfree_skb(skb);
* an IP socket.
*/
-int ip_setsockopt(struct sock *sk, int level, int optname, char *optval, int optlen)
+int ip_setsockopt(struct sock *sk, int level, int optname, char __user *optval, int optlen)
{
- struct inet_opt *inet = inet_sk(sk);
+ struct inet_sock *inet = inet_sk(sk);
int val=0,err;
if (level != SOL_IP)
optname == IP_MULTICAST_TTL ||
optname == IP_MULTICAST_LOOP) {
if (optlen >= sizeof(int)) {
- if (get_user(val, (int *) optval))
+ if (get_user(val, (int __user *) optval))
return -EFAULT;
} else if (optlen >= sizeof(char)) {
unsigned char ucval;
- if (get_user(ucval, (unsigned char *) optval))
+ if (get_user(ucval, (unsigned char __user *) optval))
return -EFAULT;
val = (int) ucval;
}
struct ip_options * opt = NULL;
if (optlen > 40 || optlen < 0)
goto e_inval;
- err = ip_options_get(&opt, optval, optlen, 1);
+ err = ip_options_get_from_user(&opt, optval, optlen);
if (err)
break;
- if (sk->sk_type == SOCK_STREAM) {
- struct tcp_opt *tp = tcp_sk(sk);
+ if (inet->is_icsk) {
+ struct inet_connection_sock *icsk = inet_csk(sk);
#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
if (sk->sk_family == PF_INET ||
(!((1 << sk->sk_state) &
inet->daddr != LOOPBACK4_IPV6)) {
#endif
if (inet->opt)
- tp->ext_header_len -= inet->opt->optlen;
+ icsk->icsk_ext_hdr_len -= inet->opt->optlen;
if (opt)
- tp->ext_header_len += opt->optlen;
- tcp_sync_mss(sk, tp->pmtu_cookie);
+ icsk->icsk_ext_hdr_len += opt->optlen;
+ icsk->icsk_sync_mss(sk, icsk->icsk_pmtu_cookie);
#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
}
#endif
}
opt = xchg(&inet->opt, opt);
- if (opt)
- kfree(opt);
+ kfree(opt);
break;
}
case IP_PKTINFO:
}
case IP_MSFILTER:
{
- extern int sysctl_optmem_max;
extern int sysctl_igmp_max_msf;
struct ip_msfilter *msf;
err = -ENOBUFS;
break;
}
- msf = (struct ip_msfilter *)kmalloc(optlen, GFP_KERNEL);
+ msf = kmalloc(optlen, GFP_KERNEL);
if (msf == 0) {
err = -ENOBUFS;
break;
mreq.imr_address.s_addr = mreqs.imr_interface;
mreq.imr_ifindex = 0;
err = ip_mc_join_group(sk, &mreq);
- if (err)
+ if (err && err != -EADDRINUSE)
break;
omode = MCAST_INCLUDE;
add = 1;
- } else /*IP_DROP_SOURCE_MEMBERSHIP */ {
+ } else /* IP_DROP_SOURCE_MEMBERSHIP */ {
omode = MCAST_INCLUDE;
add = 0;
}
mreq.imr_address.s_addr = 0;
mreq.imr_ifindex = greqs.gsr_interface;
err = ip_mc_join_group(sk, &mreq);
- if (err)
+ if (err && err != -EADDRINUSE)
break;
+ greqs.gsr_interface = mreq.imr_ifindex;
omode = MCAST_INCLUDE;
add = 1;
} else /* MCAST_LEAVE_SOURCE_GROUP */ {
}
case MCAST_MSFILTER:
{
- extern int sysctl_optmem_max;
extern int sysctl_igmp_max_msf;
struct sockaddr_in *psin;
- struct ip_msfilter *msf = 0;
- struct group_filter *gsf = 0;
+ struct ip_msfilter *msf = NULL;
+ struct group_filter *gsf = NULL;
int msize, i, ifindex;
if (optlen < GROUP_FILTER_SIZE(0))
err = -ENOBUFS;
break;
}
- gsf = (struct group_filter *)kmalloc(optlen,GFP_KERNEL);
+ gsf = kmalloc(optlen,GFP_KERNEL);
if (gsf == 0) {
err = -ENOBUFS;
break;
goto mc_msf_out;
}
msize = IP_MSFILTER_SIZE(gsf->gf_numsrc);
- msf = (struct ip_msfilter *)kmalloc(msize,GFP_KERNEL);
+ msf = kmalloc(msize,GFP_KERNEL);
if (msf == 0) {
err = -ENOBUFS;
goto mc_msf_out;
msf->imsf_slist[i] = psin->sin_addr.s_addr;
}
kfree(gsf);
- gsf = 0;
+ gsf = NULL;
err = ip_mc_msfilter(sk, msf, ifindex);
mc_msf_out:
- if (msf)
- kfree(msf);
- if (gsf)
- kfree(gsf);
+ kfree(msf);
+ kfree(gsf);
break;
}
case IP_ROUTER_ALERT:
case IP_IPSEC_POLICY:
case IP_XFRM_POLICY:
+ err = -EPERM;
+ if (!capable(CAP_NET_ADMIN))
+ break;
err = xfrm_user_policy(sk, optname, optval, optlen);
break;
* _received_ ones. The set sets the _sent_ ones.
*/
-int ip_getsockopt(struct sock *sk, int level, int optname, char *optval, int *optlen)
+int ip_getsockopt(struct sock *sk, int level, int optname, char __user *optval, int __user *optlen)
{
- struct inet_opt *inet = inet_sk(sk);
+ struct inet_sock *inet = inet_sk(sk);
int val;
int len;
val = 0;
dst = sk_dst_get(sk);
if (dst) {
- val = dst_pmtu(dst) - dst->header_len;
+ val = dst_mtu(dst);
dst_release(dst);
}
if (!val) {
if(put_user(len, optlen))
return -EFAULT;
- if(copy_to_user((void *)optval, &addr, len))
+ if(copy_to_user(optval, &addr, len))
return -EFAULT;
return 0;
}
return -EFAULT;
}
err = ip_mc_msfget(sk, &msf,
- (struct ip_msfilter *)optval, optlen);
+ (struct ip_msfilter __user *)optval, optlen);
release_sock(sk);
return err;
}
return -EFAULT;
}
err = ip_mc_gsfget(sk, &gsf,
- (struct group_filter *)optval, optlen);
+ (struct group_filter __user *)optval, optlen);
release_sock(sk);
return err;
}
EXPORT_SYMBOL(ip_cmsg_recv);
-#ifdef CONFIG_IP_SCTP_MODULE
EXPORT_SYMBOL(ip_getsockopt);
EXPORT_SYMBOL(ip_setsockopt);
-#endif
git://git.onelab.eu / linux-2.6.git / blobdiff