* interface as the means of communication with the user level.
*
* The IP to API glue.
- *
+ *
* Version: $Id: ip_sockglue.c,v 1.62 2002/02/01 22:01:04 davem Exp $
*
* Authors: see ip.c
* Fixes:
* Many : Split from ip.c , see ip.c for history.
* Martin Mares : TOS setting fixed.
- * Alan Cox : Fixed a couple of oopses in Martin's
+ * Alan Cox : Fixed a couple of oopses in Martin's
* TOS tweaks.
* Mike McLagan : Routing by source
*/
#include <linux/module.h>
#include <linux/types.h>
#include <linux/mm.h>
-#include <linux/sched.h>
#include <linux/skbuff.h>
#include <linux/ip.h>
#include <linux/icmp.h>
return 0;
}
-void ip_icmp_error(struct sock *sk, struct sk_buff *skb, int err,
- u16 port, u32 info, u8 *payload)
+void ip_icmp_error(struct sock *sk, struct sk_buff *skb, int err,
+ __be16 port, u32 info, u8 *payload)
{
struct inet_sock *inet = inet_sk(sk);
struct sock_exterr_skb *serr;
if (!skb)
return;
- serr = SKB_EXT_ERR(skb);
+ serr = SKB_EXT_ERR(skb);
serr->ee.ee_errno = err;
serr->ee.ee_origin = SO_EE_ORIGIN_ICMP;
- serr->ee.ee_type = skb->h.icmph->type;
+ serr->ee.ee_type = skb->h.icmph->type;
serr->ee.ee_code = skb->h.icmph->code;
serr->ee.ee_pad = 0;
serr->ee.ee_info = info;
kfree_skb(skb);
}
-void ip_local_error(struct sock *sk, int err, u32 daddr, u16 port, u32 info)
+void ip_local_error(struct sock *sk, int err, __be32 daddr, __be16 port, u32 info)
{
struct inet_sock *inet = inet_sk(sk);
struct sock_exterr_skb *serr;
skb->nh.iph = iph;
iph->daddr = daddr;
- serr = SKB_EXT_ERR(skb);
+ serr = SKB_EXT_ERR(skb);
serr->ee.ee_errno = err;
serr->ee.ee_origin = SO_EE_ORIGIN_LOCAL;
- serr->ee.ee_type = 0;
+ serr->ee.ee_type = 0;
serr->ee.ee_code = 0;
serr->ee.ee_pad = 0;
serr->ee.ee_info = info;
kfree_skb(skb);
}
-/*
+/*
* Handle MSG_ERRQUEUE
*/
int ip_recv_error(struct sock *sk, struct msghdr *msg, int len)
sin = (struct sockaddr_in *)msg->msg_name;
if (sin) {
sin->sin_family = AF_INET;
- sin->sin_addr.s_addr = *(u32*)(skb->nh.raw + serr->addr_offset);
+ sin->sin_addr.s_addr = *(__be32*)(skb->nh.raw + serr->addr_offset);
sin->sin_port = serr->port;
memset(&sin->sin_zero, 0, sizeof(sin->sin_zero));
}
} else
spin_unlock_bh(&sk->sk_error_queue.lock);
-out_free_skb:
+out_free_skb:
kfree_skb(skb);
out:
return err;
*/
static int do_ip_setsockopt(struct sock *sk, int level,
- int optname, char __user *optval, int optlen)
+ int optname, char __user *optval, int optlen)
{
struct inet_sock *inet = inet_sk(sk);
int val=0,err;
- if (((1<<optname) & ((1<<IP_PKTINFO) | (1<<IP_RECVTTL) |
- (1<<IP_RECVOPTS) | (1<<IP_RECVTOS) |
- (1<<IP_RETOPTS) | (1<<IP_TOS) |
- (1<<IP_TTL) | (1<<IP_HDRINCL) |
- (1<<IP_MTU_DISCOVER) | (1<<IP_RECVERR) |
- (1<<IP_ROUTER_ALERT) | (1<<IP_FREEBIND) |
- (1<<IP_PASSSEC))) ||
- optname == IP_MULTICAST_TTL ||
- optname == IP_MULTICAST_LOOP) {
+ if (((1<<optname) & ((1<<IP_PKTINFO) | (1<<IP_RECVTTL) |
+ (1<<IP_RECVOPTS) | (1<<IP_RECVTOS) |
+ (1<<IP_RETOPTS) | (1<<IP_TOS) |
+ (1<<IP_TTL) | (1<<IP_HDRINCL) |
+ (1<<IP_MTU_DISCOVER) | (1<<IP_RECVERR) |
+ (1<<IP_ROUTER_ALERT) | (1<<IP_FREEBIND) |
+ (1<<IP_PASSSEC))) ||
+ optname == IP_MULTICAST_TTL ||
+ optname == IP_MULTICAST_LOOP) {
if (optlen >= sizeof(int)) {
if (get_user(val, (int __user *) optval))
return -EFAULT;
lock_sock(sk);
switch (optname) {
- case IP_OPTIONS:
- {
- struct ip_options * opt = NULL;
- if (optlen > 40 || optlen < 0)
- goto e_inval;
- err = ip_options_get_from_user(&opt, optval, optlen);
- if (err)
- break;
- if (inet->is_icsk) {
- struct inet_connection_sock *icsk = inet_csk(sk);
+ case IP_OPTIONS:
+ {
+ struct ip_options * opt = NULL;
+ if (optlen > 40 || optlen < 0)
+ goto e_inval;
+ err = ip_options_get_from_user(&opt, optval, optlen);
+ if (err)
+ break;
+ 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) &
- (TCPF_LISTEN | TCPF_CLOSE)) &&
- inet->daddr != LOOPBACK4_IPV6)) {
+ if (sk->sk_family == PF_INET ||
+ (!((1 << sk->sk_state) &
+ (TCPF_LISTEN | TCPF_CLOSE)) &&
+ inet->daddr != LOOPBACK4_IPV6)) {
#endif
- if (inet->opt)
- icsk->icsk_ext_hdr_len -= inet->opt->optlen;
- if (opt)
- icsk->icsk_ext_hdr_len += opt->optlen;
- icsk->icsk_sync_mss(sk, icsk->icsk_pmtu_cookie);
+ if (inet->opt)
+ icsk->icsk_ext_hdr_len -= inet->opt->optlen;
+ if (opt)
+ 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);
- kfree(opt);
- break;
+#endif
}
- case IP_PKTINFO:
- if (val)
- inet->cmsg_flags |= IP_CMSG_PKTINFO;
- else
- inet->cmsg_flags &= ~IP_CMSG_PKTINFO;
- break;
- case IP_RECVTTL:
- if (val)
- inet->cmsg_flags |= IP_CMSG_TTL;
- else
- inet->cmsg_flags &= ~IP_CMSG_TTL;
- break;
- case IP_RECVTOS:
- if (val)
- inet->cmsg_flags |= IP_CMSG_TOS;
- else
- inet->cmsg_flags &= ~IP_CMSG_TOS;
- break;
- case IP_RECVOPTS:
- if (val)
- inet->cmsg_flags |= IP_CMSG_RECVOPTS;
- else
- inet->cmsg_flags &= ~IP_CMSG_RECVOPTS;
- break;
- case IP_RETOPTS:
- if (val)
- inet->cmsg_flags |= IP_CMSG_RETOPTS;
- else
- inet->cmsg_flags &= ~IP_CMSG_RETOPTS;
+ opt = xchg(&inet->opt, opt);
+ kfree(opt);
+ break;
+ }
+ case IP_PKTINFO:
+ if (val)
+ inet->cmsg_flags |= IP_CMSG_PKTINFO;
+ else
+ inet->cmsg_flags &= ~IP_CMSG_PKTINFO;
+ break;
+ case IP_RECVTTL:
+ if (val)
+ inet->cmsg_flags |= IP_CMSG_TTL;
+ else
+ inet->cmsg_flags &= ~IP_CMSG_TTL;
+ break;
+ case IP_RECVTOS:
+ if (val)
+ inet->cmsg_flags |= IP_CMSG_TOS;
+ else
+ inet->cmsg_flags &= ~IP_CMSG_TOS;
+ break;
+ case IP_RECVOPTS:
+ if (val)
+ inet->cmsg_flags |= IP_CMSG_RECVOPTS;
+ else
+ inet->cmsg_flags &= ~IP_CMSG_RECVOPTS;
+ break;
+ case IP_RETOPTS:
+ if (val)
+ inet->cmsg_flags |= IP_CMSG_RETOPTS;
+ else
+ inet->cmsg_flags &= ~IP_CMSG_RETOPTS;
+ break;
+ case IP_PASSSEC:
+ if (val)
+ inet->cmsg_flags |= IP_CMSG_PASSSEC;
+ else
+ inet->cmsg_flags &= ~IP_CMSG_PASSSEC;
+ break;
+ case IP_TOS: /* This sets both TOS and Precedence */
+ if (sk->sk_type == SOCK_STREAM) {
+ val &= ~3;
+ val |= inet->tos & 3;
+ }
+ if (IPTOS_PREC(val) >= IPTOS_PREC_CRITIC_ECP &&
+ !capable(CAP_NET_ADMIN)) {
+ err = -EPERM;
break;
- case IP_PASSSEC:
- if (val)
- inet->cmsg_flags |= IP_CMSG_PASSSEC;
- else
- inet->cmsg_flags &= ~IP_CMSG_PASSSEC;
+ }
+ if (inet->tos != val) {
+ inet->tos = val;
+ sk->sk_priority = rt_tos2priority(val);
+ sk_dst_reset(sk);
+ }
+ break;
+ case IP_TTL:
+ if (optlen<1)
+ goto e_inval;
+ if (val != -1 && (val < 1 || val>255))
+ goto e_inval;
+ inet->uc_ttl = val;
+ break;
+ case IP_HDRINCL:
+ if (sk->sk_type != SOCK_RAW) {
+ err = -ENOPROTOOPT;
break;
- case IP_TOS: /* This sets both TOS and Precedence */
- if (sk->sk_type == SOCK_STREAM) {
- val &= ~3;
- val |= inet->tos & 3;
- }
- if (IPTOS_PREC(val) >= IPTOS_PREC_CRITIC_ECP &&
- !capable(CAP_NET_ADMIN)) {
- err = -EPERM;
+ }
+ inet->hdrincl = val ? 1 : 0;
+ break;
+ case IP_MTU_DISCOVER:
+ if (val<0 || val>2)
+ goto e_inval;
+ inet->pmtudisc = val;
+ break;
+ case IP_RECVERR:
+ inet->recverr = !!val;
+ if (!val)
+ skb_queue_purge(&sk->sk_error_queue);
+ break;
+ case IP_MULTICAST_TTL:
+ if (sk->sk_type == SOCK_STREAM)
+ goto e_inval;
+ if (optlen<1)
+ goto e_inval;
+ if (val==-1)
+ val = 1;
+ if (val < 0 || val > 255)
+ goto e_inval;
+ inet->mc_ttl = val;
+ break;
+ case IP_MULTICAST_LOOP:
+ if (optlen<1)
+ goto e_inval;
+ inet->mc_loop = !!val;
+ break;
+ case IP_MULTICAST_IF:
+ {
+ struct ip_mreqn mreq;
+ struct net_device *dev = NULL;
+
+ if (sk->sk_type == SOCK_STREAM)
+ goto e_inval;
+ /*
+ * Check the arguments are allowable
+ */
+
+ err = -EFAULT;
+ if (optlen >= sizeof(struct ip_mreqn)) {
+ if (copy_from_user(&mreq,optval,sizeof(mreq)))
break;
- }
- if (inet->tos != val) {
- inet->tos = val;
- sk->sk_priority = rt_tos2priority(val);
- sk_dst_reset(sk);
- }
- break;
- case IP_TTL:
- if (optlen<1)
- goto e_inval;
- if (val != -1 && (val < 1 || val>255))
- goto e_inval;
- inet->uc_ttl = val;
- break;
- case IP_HDRINCL:
- if (sk->sk_type != SOCK_RAW) {
- err = -ENOPROTOOPT;
+ } else {
+ memset(&mreq, 0, sizeof(mreq));
+ if (optlen >= sizeof(struct in_addr) &&
+ copy_from_user(&mreq.imr_address,optval,sizeof(struct in_addr)))
+ break;
+ }
+
+ if (!mreq.imr_ifindex) {
+ if (mreq.imr_address.s_addr == INADDR_ANY) {
+ inet->mc_index = 0;
+ inet->mc_addr = 0;
+ err = 0;
break;
}
- inet->hdrincl = val ? 1 : 0;
- break;
- case IP_MTU_DISCOVER:
- if (val<0 || val>2)
- goto e_inval;
- inet->pmtudisc = val;
- break;
- case IP_RECVERR:
- inet->recverr = !!val;
- if (!val)
- skb_queue_purge(&sk->sk_error_queue);
- break;
- case IP_MULTICAST_TTL:
- if (sk->sk_type == SOCK_STREAM)
- goto e_inval;
- if (optlen<1)
- goto e_inval;
- if (val==-1)
- val = 1;
- if (val < 0 || val > 255)
- goto e_inval;
- inet->mc_ttl = val;
- break;
- case IP_MULTICAST_LOOP:
- if (optlen<1)
- goto e_inval;
- inet->mc_loop = !!val;
- break;
- case IP_MULTICAST_IF:
- {
- struct ip_mreqn mreq;
- struct net_device *dev = NULL;
+ dev = ip_dev_find(mreq.imr_address.s_addr);
+ if (dev) {
+ mreq.imr_ifindex = dev->ifindex;
+ dev_put(dev);
+ }
+ } else
+ dev = __dev_get_by_index(mreq.imr_ifindex);
- if (sk->sk_type == SOCK_STREAM)
- goto e_inval;
- /*
- * Check the arguments are allowable
- */
- err = -EFAULT;
- if (optlen >= sizeof(struct ip_mreqn)) {
- if (copy_from_user(&mreq,optval,sizeof(mreq)))
- break;
- } else {
- memset(&mreq, 0, sizeof(mreq));
- if (optlen >= sizeof(struct in_addr) &&
- copy_from_user(&mreq.imr_address,optval,sizeof(struct in_addr)))
- break;
- }
+ err = -EADDRNOTAVAIL;
+ if (!dev)
+ break;
- if (!mreq.imr_ifindex) {
- if (mreq.imr_address.s_addr == INADDR_ANY) {
- inet->mc_index = 0;
- inet->mc_addr = 0;
- err = 0;
- break;
- }
- dev = ip_dev_find(mreq.imr_address.s_addr);
- if (dev) {
- mreq.imr_ifindex = dev->ifindex;
- dev_put(dev);
- }
- } else
- dev = __dev_get_by_index(mreq.imr_ifindex);
+ err = -EINVAL;
+ if (sk->sk_bound_dev_if &&
+ mreq.imr_ifindex != sk->sk_bound_dev_if)
+ break;
+ inet->mc_index = mreq.imr_ifindex;
+ inet->mc_addr = mreq.imr_address.s_addr;
+ err = 0;
+ break;
+ }
- err = -EADDRNOTAVAIL;
- if (!dev)
- break;
+ case IP_ADD_MEMBERSHIP:
+ case IP_DROP_MEMBERSHIP:
+ {
+ struct ip_mreqn mreq;
- err = -EINVAL;
- if (sk->sk_bound_dev_if &&
- mreq.imr_ifindex != sk->sk_bound_dev_if)
+ if (optlen < sizeof(struct ip_mreq))
+ goto e_inval;
+ err = -EFAULT;
+ if (optlen >= sizeof(struct ip_mreqn)) {
+ if (copy_from_user(&mreq,optval,sizeof(mreq)))
+ break;
+ } else {
+ memset(&mreq, 0, sizeof(mreq));
+ if (copy_from_user(&mreq,optval,sizeof(struct ip_mreq)))
break;
+ }
+
+ if (optname == IP_ADD_MEMBERSHIP)
+ err = ip_mc_join_group(sk, &mreq);
+ else
+ err = ip_mc_leave_group(sk, &mreq);
+ break;
+ }
+ case IP_MSFILTER:
+ {
+ extern int sysctl_igmp_max_msf;
+ struct ip_msfilter *msf;
- inet->mc_index = mreq.imr_ifindex;
- inet->mc_addr = mreq.imr_address.s_addr;
- err = 0;
+ if (optlen < IP_MSFILTER_SIZE(0))
+ goto e_inval;
+ if (optlen > sysctl_optmem_max) {
+ err = -ENOBUFS;
break;
}
+ msf = kmalloc(optlen, GFP_KERNEL);
+ if (msf == 0) {
+ err = -ENOBUFS;
+ break;
+ }
+ err = -EFAULT;
+ if (copy_from_user(msf, optval, optlen)) {
+ kfree(msf);
+ break;
+ }
+ /* numsrc >= (1G-4) overflow in 32 bits */
+ if (msf->imsf_numsrc >= 0x3ffffffcU ||
+ msf->imsf_numsrc > sysctl_igmp_max_msf) {
+ kfree(msf);
+ err = -ENOBUFS;
+ break;
+ }
+ if (IP_MSFILTER_SIZE(msf->imsf_numsrc) > optlen) {
+ kfree(msf);
+ err = -EINVAL;
+ break;
+ }
+ err = ip_mc_msfilter(sk, msf, 0);
+ kfree(msf);
+ break;
+ }
+ case IP_BLOCK_SOURCE:
+ case IP_UNBLOCK_SOURCE:
+ case IP_ADD_SOURCE_MEMBERSHIP:
+ case IP_DROP_SOURCE_MEMBERSHIP:
+ {
+ struct ip_mreq_source mreqs;
+ int omode, add;
- case IP_ADD_MEMBERSHIP:
- case IP_DROP_MEMBERSHIP:
- {
- struct ip_mreqn mreq;
-
- if (optlen < sizeof(struct ip_mreq))
- goto e_inval;
+ if (optlen != sizeof(struct ip_mreq_source))
+ goto e_inval;
+ if (copy_from_user(&mreqs, optval, sizeof(mreqs))) {
err = -EFAULT;
- if (optlen >= sizeof(struct ip_mreqn)) {
- if(copy_from_user(&mreq,optval,sizeof(mreq)))
- break;
- } else {
- memset(&mreq, 0, sizeof(mreq));
- if (copy_from_user(&mreq,optval,sizeof(struct ip_mreq)))
- break;
- }
-
- if (optname == IP_ADD_MEMBERSHIP)
- err = ip_mc_join_group(sk, &mreq);
- else
- err = ip_mc_leave_group(sk, &mreq);
break;
}
- case IP_MSFILTER:
- {
- extern int sysctl_igmp_max_msf;
- struct ip_msfilter *msf;
+ if (optname == IP_BLOCK_SOURCE) {
+ omode = MCAST_EXCLUDE;
+ add = 1;
+ } else if (optname == IP_UNBLOCK_SOURCE) {
+ omode = MCAST_EXCLUDE;
+ add = 0;
+ } else if (optname == IP_ADD_SOURCE_MEMBERSHIP) {
+ struct ip_mreqn mreq;
- if (optlen < IP_MSFILTER_SIZE(0))
- goto e_inval;
- if (optlen > sysctl_optmem_max) {
- err = -ENOBUFS;
- break;
- }
- msf = kmalloc(optlen, GFP_KERNEL);
- if (msf == 0) {
- err = -ENOBUFS;
+ mreq.imr_multiaddr.s_addr = mreqs.imr_multiaddr;
+ mreq.imr_address.s_addr = mreqs.imr_interface;
+ mreq.imr_ifindex = 0;
+ err = ip_mc_join_group(sk, &mreq);
+ if (err && err != -EADDRINUSE)
break;
- }
+ omode = MCAST_INCLUDE;
+ add = 1;
+ } else /* IP_DROP_SOURCE_MEMBERSHIP */ {
+ omode = MCAST_INCLUDE;
+ add = 0;
+ }
+ err = ip_mc_source(add, omode, sk, &mreqs, 0);
+ break;
+ }
+ case MCAST_JOIN_GROUP:
+ case MCAST_LEAVE_GROUP:
+ {
+ struct group_req greq;
+ struct sockaddr_in *psin;
+ struct ip_mreqn mreq;
+
+ if (optlen < sizeof(struct group_req))
+ goto e_inval;
+ err = -EFAULT;
+ if (copy_from_user(&greq, optval, sizeof(greq)))
+ break;
+ psin = (struct sockaddr_in *)&greq.gr_group;
+ if (psin->sin_family != AF_INET)
+ goto e_inval;
+ memset(&mreq, 0, sizeof(mreq));
+ mreq.imr_multiaddr = psin->sin_addr;
+ mreq.imr_ifindex = greq.gr_interface;
+
+ if (optname == MCAST_JOIN_GROUP)
+ err = ip_mc_join_group(sk, &mreq);
+ else
+ err = ip_mc_leave_group(sk, &mreq);
+ break;
+ }
+ case MCAST_JOIN_SOURCE_GROUP:
+ case MCAST_LEAVE_SOURCE_GROUP:
+ case MCAST_BLOCK_SOURCE:
+ case MCAST_UNBLOCK_SOURCE:
+ {
+ struct group_source_req greqs;
+ struct ip_mreq_source mreqs;
+ struct sockaddr_in *psin;
+ int omode, add;
+
+ if (optlen != sizeof(struct group_source_req))
+ goto e_inval;
+ if (copy_from_user(&greqs, optval, sizeof(greqs))) {
err = -EFAULT;
- if (copy_from_user(msf, optval, optlen)) {
- kfree(msf);
- break;
- }
- /* numsrc >= (1G-4) overflow in 32 bits */
- if (msf->imsf_numsrc >= 0x3ffffffcU ||
- msf->imsf_numsrc > sysctl_igmp_max_msf) {
- kfree(msf);
- err = -ENOBUFS;
- break;
- }
- if (IP_MSFILTER_SIZE(msf->imsf_numsrc) > optlen) {
- kfree(msf);
- err = -EINVAL;
- break;
- }
- err = ip_mc_msfilter(sk, msf, 0);
- kfree(msf);
break;
}
- case IP_BLOCK_SOURCE:
- case IP_UNBLOCK_SOURCE:
- case IP_ADD_SOURCE_MEMBERSHIP:
- case IP_DROP_SOURCE_MEMBERSHIP:
- {
- struct ip_mreq_source mreqs;
- int omode, add;
-
- if (optlen != sizeof(struct ip_mreq_source))
- goto e_inval;
- if (copy_from_user(&mreqs, optval, sizeof(mreqs))) {
- err = -EFAULT;
- break;
- }
- if (optname == IP_BLOCK_SOURCE) {
- omode = MCAST_EXCLUDE;
- add = 1;
- } else if (optname == IP_UNBLOCK_SOURCE) {
- omode = MCAST_EXCLUDE;
- add = 0;
- } else if (optname == IP_ADD_SOURCE_MEMBERSHIP) {
- struct ip_mreqn mreq;
-
- mreq.imr_multiaddr.s_addr = mreqs.imr_multiaddr;
- mreq.imr_address.s_addr = mreqs.imr_interface;
- mreq.imr_ifindex = 0;
- err = ip_mc_join_group(sk, &mreq);
- if (err && err != -EADDRINUSE)
- break;
- omode = MCAST_INCLUDE;
- add = 1;
- } else /* IP_DROP_SOURCE_MEMBERSHIP */ {
- omode = MCAST_INCLUDE;
- add = 0;
- }
- err = ip_mc_source(add, omode, sk, &mreqs, 0);
+ if (greqs.gsr_group.ss_family != AF_INET ||
+ greqs.gsr_source.ss_family != AF_INET) {
+ err = -EADDRNOTAVAIL;
break;
}
- case MCAST_JOIN_GROUP:
- case MCAST_LEAVE_GROUP:
- {
- struct group_req greq;
- struct sockaddr_in *psin;
+ psin = (struct sockaddr_in *)&greqs.gsr_group;
+ mreqs.imr_multiaddr = psin->sin_addr.s_addr;
+ psin = (struct sockaddr_in *)&greqs.gsr_source;
+ mreqs.imr_sourceaddr = psin->sin_addr.s_addr;
+ mreqs.imr_interface = 0; /* use index for mc_source */
+
+ 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 ip_mreqn mreq;
- if (optlen < sizeof(struct group_req))
- goto e_inval;
- err = -EFAULT;
- if(copy_from_user(&greq, optval, sizeof(greq)))
- break;
- psin = (struct sockaddr_in *)&greq.gr_group;
- if (psin->sin_family != AF_INET)
- goto e_inval;
- memset(&mreq, 0, sizeof(mreq));
+ psin = (struct sockaddr_in *)&greqs.gsr_group;
mreq.imr_multiaddr = psin->sin_addr;
- mreq.imr_ifindex = greq.gr_interface;
-
- if (optname == MCAST_JOIN_GROUP)
- err = ip_mc_join_group(sk, &mreq);
- else
- err = ip_mc_leave_group(sk, &mreq);
+ mreq.imr_address.s_addr = 0;
+ mreq.imr_ifindex = greqs.gsr_interface;
+ err = ip_mc_join_group(sk, &mreq);
+ if (err && err != -EADDRINUSE)
+ break;
+ greqs.gsr_interface = mreq.imr_ifindex;
+ omode = MCAST_INCLUDE;
+ add = 1;
+ } else /* MCAST_LEAVE_SOURCE_GROUP */ {
+ omode = MCAST_INCLUDE;
+ add = 0;
+ }
+ err = ip_mc_source(add, omode, sk, &mreqs,
+ greqs.gsr_interface);
+ break;
+ }
+ case MCAST_MSFILTER:
+ {
+ extern int sysctl_igmp_max_msf;
+ struct sockaddr_in *psin;
+ struct ip_msfilter *msf = NULL;
+ struct group_filter *gsf = NULL;
+ int msize, i, ifindex;
+
+ if (optlen < GROUP_FILTER_SIZE(0))
+ goto e_inval;
+ if (optlen > sysctl_optmem_max) {
+ err = -ENOBUFS;
break;
}
- case MCAST_JOIN_SOURCE_GROUP:
- case MCAST_LEAVE_SOURCE_GROUP:
- case MCAST_BLOCK_SOURCE:
- case MCAST_UNBLOCK_SOURCE:
- {
- struct group_source_req greqs;
- struct ip_mreq_source mreqs;
- struct sockaddr_in *psin;
- int omode, add;
-
- if (optlen != sizeof(struct group_source_req))
- goto e_inval;
- if (copy_from_user(&greqs, optval, sizeof(greqs))) {
- err = -EFAULT;
- break;
- }
- if (greqs.gsr_group.ss_family != AF_INET ||
- greqs.gsr_source.ss_family != AF_INET) {
- err = -EADDRNOTAVAIL;
- break;
- }
- psin = (struct sockaddr_in *)&greqs.gsr_group;
- mreqs.imr_multiaddr = psin->sin_addr.s_addr;
- psin = (struct sockaddr_in *)&greqs.gsr_source;
- mreqs.imr_sourceaddr = psin->sin_addr.s_addr;
- mreqs.imr_interface = 0; /* use index for mc_source */
-
- 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 ip_mreqn mreq;
-
- psin = (struct sockaddr_in *)&greqs.gsr_group;
- mreq.imr_multiaddr = psin->sin_addr;
- mreq.imr_address.s_addr = 0;
- mreq.imr_ifindex = greqs.gsr_interface;
- err = ip_mc_join_group(sk, &mreq);
- if (err && err != -EADDRINUSE)
- break;
- greqs.gsr_interface = mreq.imr_ifindex;
- omode = MCAST_INCLUDE;
- add = 1;
- } else /* MCAST_LEAVE_SOURCE_GROUP */ {
- omode = MCAST_INCLUDE;
- add = 0;
- }
- err = ip_mc_source(add, omode, sk, &mreqs,
- greqs.gsr_interface);
+ gsf = kmalloc(optlen,GFP_KERNEL);
+ if (gsf == 0) {
+ err = -ENOBUFS;
break;
}
- case MCAST_MSFILTER:
- {
- extern int sysctl_igmp_max_msf;
- struct sockaddr_in *psin;
- struct ip_msfilter *msf = NULL;
- struct group_filter *gsf = NULL;
- int msize, i, ifindex;
-
- if (optlen < GROUP_FILTER_SIZE(0))
- goto e_inval;
- if (optlen > sysctl_optmem_max) {
- err = -ENOBUFS;
- break;
- }
- gsf = kmalloc(optlen,GFP_KERNEL);
- if (gsf == 0) {
- err = -ENOBUFS;
- break;
- }
- err = -EFAULT;
- if (copy_from_user(gsf, optval, optlen)) {
- goto mc_msf_out;
- }
- /* numsrc >= (4G-140)/128 overflow in 32 bits */
- if (gsf->gf_numsrc >= 0x1ffffff ||
- gsf->gf_numsrc > sysctl_igmp_max_msf) {
- err = -ENOBUFS;
- goto mc_msf_out;
- }
- if (GROUP_FILTER_SIZE(gsf->gf_numsrc) > optlen) {
- err = -EINVAL;
- goto mc_msf_out;
- }
- msize = IP_MSFILTER_SIZE(gsf->gf_numsrc);
- msf = kmalloc(msize,GFP_KERNEL);
- if (msf == 0) {
- err = -ENOBUFS;
- goto mc_msf_out;
- }
- ifindex = gsf->gf_interface;
- psin = (struct sockaddr_in *)&gsf->gf_group;
- if (psin->sin_family != AF_INET) {
- err = -EADDRNOTAVAIL;
- goto mc_msf_out;
- }
- msf->imsf_multiaddr = psin->sin_addr.s_addr;
- msf->imsf_interface = 0;
- msf->imsf_fmode = gsf->gf_fmode;
- msf->imsf_numsrc = gsf->gf_numsrc;
+ err = -EFAULT;
+ if (copy_from_user(gsf, optval, optlen)) {
+ goto mc_msf_out;
+ }
+ /* numsrc >= (4G-140)/128 overflow in 32 bits */
+ if (gsf->gf_numsrc >= 0x1ffffff ||
+ gsf->gf_numsrc > sysctl_igmp_max_msf) {
+ err = -ENOBUFS;
+ goto mc_msf_out;
+ }
+ if (GROUP_FILTER_SIZE(gsf->gf_numsrc) > optlen) {
+ err = -EINVAL;
+ goto mc_msf_out;
+ }
+ msize = IP_MSFILTER_SIZE(gsf->gf_numsrc);
+ msf = kmalloc(msize,GFP_KERNEL);
+ if (msf == 0) {
+ err = -ENOBUFS;
+ goto mc_msf_out;
+ }
+ ifindex = gsf->gf_interface;
+ psin = (struct sockaddr_in *)&gsf->gf_group;
+ if (psin->sin_family != AF_INET) {
err = -EADDRNOTAVAIL;
- for (i=0; i<gsf->gf_numsrc; ++i) {
- psin = (struct sockaddr_in *)&gsf->gf_slist[i];
-
- if (psin->sin_family != AF_INET)
- goto mc_msf_out;
- msf->imsf_slist[i] = psin->sin_addr.s_addr;
- }
- kfree(gsf);
- gsf = NULL;
-
- err = ip_mc_msfilter(sk, msf, ifindex);
-mc_msf_out:
- kfree(msf);
- kfree(gsf);
- break;
+ goto mc_msf_out;
}
- case IP_ROUTER_ALERT:
- err = ip_ra_control(sk, val ? 1 : 0, NULL);
- break;
+ msf->imsf_multiaddr = psin->sin_addr.s_addr;
+ msf->imsf_interface = 0;
+ msf->imsf_fmode = gsf->gf_fmode;
+ msf->imsf_numsrc = gsf->gf_numsrc;
+ err = -EADDRNOTAVAIL;
+ for (i=0; i<gsf->gf_numsrc; ++i) {
+ psin = (struct sockaddr_in *)&gsf->gf_slist[i];
- case IP_FREEBIND:
- if (optlen<1)
- goto e_inval;
- inet->freebind = !!val;
- break;
-
- case IP_IPSEC_POLICY:
- case IP_XFRM_POLICY:
- err = -EPERM;
- if (!capable(CAP_NET_ADMIN))
- break;
- err = xfrm_user_policy(sk, optname, optval, optlen);
+ if (psin->sin_family != AF_INET)
+ goto mc_msf_out;
+ msf->imsf_slist[i] = psin->sin_addr.s_addr;
+ }
+ kfree(gsf);
+ gsf = NULL;
+
+ err = ip_mc_msfilter(sk, msf, ifindex);
+ mc_msf_out:
+ kfree(msf);
+ kfree(gsf);
+ break;
+ }
+ case IP_ROUTER_ALERT:
+ err = ip_ra_control(sk, val ? 1 : 0, NULL);
+ break;
+
+ case IP_FREEBIND:
+ if (optlen<1)
+ goto e_inval;
+ inet->freebind = !!val;
+ break;
+
+ 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;
- default:
- err = -ENOPROTOOPT;
- break;
+ default:
+ err = -ENOPROTOOPT;
+ break;
}
release_sock(sk);
return err;
*/
static int do_ip_getsockopt(struct sock *sk, int level, int optname,
- char __user *optval, int __user *optlen)
+ char __user *optval, int __user *optlen)
{
struct inet_sock *inet = inet_sk(sk);
int val;
int len;
-
- if(level!=SOL_IP)
+
+ if (level != SOL_IP)
return -EOPNOTSUPP;
#ifdef CONFIG_IP_MROUTE
- if(optname>=MRT_BASE && optname <=MRT_BASE+10)
- {
+ if (optname >= MRT_BASE && optname <= MRT_BASE+10) {
return ip_mroute_getsockopt(sk,optname,optval,optlen);
}
#endif
- if(get_user(len,optlen))
+ if (get_user(len,optlen))
return -EFAULT;
- if(len < 0)
+ if (len < 0)
return -EINVAL;
-
+
lock_sock(sk);
- switch(optname) {
- case IP_OPTIONS:
- {
- unsigned char optbuf[sizeof(struct ip_options)+40];
- struct ip_options * opt = (struct ip_options*)optbuf;
- opt->optlen = 0;
- if (inet->opt)
- memcpy(optbuf, inet->opt,
- sizeof(struct ip_options)+
- inet->opt->optlen);
- release_sock(sk);
-
- if (opt->optlen == 0)
- return put_user(0, optlen);
-
- ip_options_undo(opt);
-
- len = min_t(unsigned int, len, opt->optlen);
- if(put_user(len, optlen))
- return -EFAULT;
- if(copy_to_user(optval, opt->__data, len))
- return -EFAULT;
- return 0;
- }
- case IP_PKTINFO:
- val = (inet->cmsg_flags & IP_CMSG_PKTINFO) != 0;
- break;
- case IP_RECVTTL:
- val = (inet->cmsg_flags & IP_CMSG_TTL) != 0;
- break;
- case IP_RECVTOS:
- val = (inet->cmsg_flags & IP_CMSG_TOS) != 0;
- break;
- case IP_RECVOPTS:
- val = (inet->cmsg_flags & IP_CMSG_RECVOPTS) != 0;
- break;
- case IP_RETOPTS:
- val = (inet->cmsg_flags & IP_CMSG_RETOPTS) != 0;
- break;
- case IP_PASSSEC:
- val = (inet->cmsg_flags & IP_CMSG_PASSSEC) != 0;
- break;
- case IP_TOS:
- val = inet->tos;
- break;
- case IP_TTL:
- val = (inet->uc_ttl == -1 ?
- sysctl_ip_default_ttl :
- inet->uc_ttl);
- break;
- case IP_HDRINCL:
- val = inet->hdrincl;
- break;
- case IP_MTU_DISCOVER:
- val = inet->pmtudisc;
- break;
- case IP_MTU:
- {
- struct dst_entry *dst;
- val = 0;
- dst = sk_dst_get(sk);
- if (dst) {
- val = dst_mtu(dst);
- dst_release(dst);
- }
- if (!val) {
- release_sock(sk);
- return -ENOTCONN;
- }
- break;
+ switch (optname) {
+ case IP_OPTIONS:
+ {
+ unsigned char optbuf[sizeof(struct ip_options)+40];
+ struct ip_options * opt = (struct ip_options*)optbuf;
+ opt->optlen = 0;
+ if (inet->opt)
+ memcpy(optbuf, inet->opt,
+ sizeof(struct ip_options)+
+ inet->opt->optlen);
+ release_sock(sk);
+
+ if (opt->optlen == 0)
+ return put_user(0, optlen);
+
+ ip_options_undo(opt);
+
+ len = min_t(unsigned int, len, opt->optlen);
+ if (put_user(len, optlen))
+ return -EFAULT;
+ if (copy_to_user(optval, opt->__data, len))
+ return -EFAULT;
+ return 0;
+ }
+ case IP_PKTINFO:
+ val = (inet->cmsg_flags & IP_CMSG_PKTINFO) != 0;
+ break;
+ case IP_RECVTTL:
+ val = (inet->cmsg_flags & IP_CMSG_TTL) != 0;
+ break;
+ case IP_RECVTOS:
+ val = (inet->cmsg_flags & IP_CMSG_TOS) != 0;
+ break;
+ case IP_RECVOPTS:
+ val = (inet->cmsg_flags & IP_CMSG_RECVOPTS) != 0;
+ break;
+ case IP_RETOPTS:
+ val = (inet->cmsg_flags & IP_CMSG_RETOPTS) != 0;
+ break;
+ case IP_PASSSEC:
+ val = (inet->cmsg_flags & IP_CMSG_PASSSEC) != 0;
+ break;
+ case IP_TOS:
+ val = inet->tos;
+ break;
+ case IP_TTL:
+ val = (inet->uc_ttl == -1 ?
+ sysctl_ip_default_ttl :
+ inet->uc_ttl);
+ break;
+ case IP_HDRINCL:
+ val = inet->hdrincl;
+ break;
+ case IP_MTU_DISCOVER:
+ val = inet->pmtudisc;
+ break;
+ case IP_MTU:
+ {
+ struct dst_entry *dst;
+ val = 0;
+ dst = sk_dst_get(sk);
+ if (dst) {
+ val = dst_mtu(dst);
+ dst_release(dst);
}
- case IP_RECVERR:
- val = inet->recverr;
- break;
- case IP_MULTICAST_TTL:
- val = inet->mc_ttl;
- break;
- case IP_MULTICAST_LOOP:
- val = inet->mc_loop;
- break;
- case IP_MULTICAST_IF:
- {
- struct in_addr addr;
- len = min_t(unsigned int, len, sizeof(struct in_addr));
- addr.s_addr = inet->mc_addr;
+ if (!val) {
release_sock(sk);
-
- if(put_user(len, optlen))
- return -EFAULT;
- if(copy_to_user(optval, &addr, len))
- return -EFAULT;
- return 0;
+ return -ENOTCONN;
}
- case IP_MSFILTER:
- {
- struct ip_msfilter msf;
- int err;
+ break;
+ }
+ case IP_RECVERR:
+ val = inet->recverr;
+ break;
+ case IP_MULTICAST_TTL:
+ val = inet->mc_ttl;
+ break;
+ case IP_MULTICAST_LOOP:
+ val = inet->mc_loop;
+ break;
+ case IP_MULTICAST_IF:
+ {
+ struct in_addr addr;
+ len = min_t(unsigned int, len, sizeof(struct in_addr));
+ addr.s_addr = inet->mc_addr;
+ release_sock(sk);
- if (len < IP_MSFILTER_SIZE(0)) {
- release_sock(sk);
- return -EINVAL;
- }
- if (copy_from_user(&msf, optval, IP_MSFILTER_SIZE(0))) {
- release_sock(sk);
- return -EFAULT;
- }
- err = ip_mc_msfget(sk, &msf,
- (struct ip_msfilter __user *)optval, optlen);
+ if (put_user(len, optlen))
+ return -EFAULT;
+ if (copy_to_user(optval, &addr, len))
+ return -EFAULT;
+ return 0;
+ }
+ case IP_MSFILTER:
+ {
+ struct ip_msfilter msf;
+ int err;
+
+ if (len < IP_MSFILTER_SIZE(0)) {
release_sock(sk);
- return err;
+ return -EINVAL;
}
- case MCAST_MSFILTER:
- {
- struct group_filter gsf;
- int err;
-
- if (len < GROUP_FILTER_SIZE(0)) {
- release_sock(sk);
- return -EINVAL;
- }
- if (copy_from_user(&gsf, optval, GROUP_FILTER_SIZE(0))) {
- release_sock(sk);
- return -EFAULT;
- }
- err = ip_mc_gsfget(sk, &gsf,
- (struct group_filter __user *)optval, optlen);
+ if (copy_from_user(&msf, optval, IP_MSFILTER_SIZE(0))) {
release_sock(sk);
- return err;
+ return -EFAULT;
}
- case IP_PKTOPTIONS:
- {
- struct msghdr msg;
+ err = ip_mc_msfget(sk, &msf,
+ (struct ip_msfilter __user *)optval, optlen);
+ release_sock(sk);
+ return err;
+ }
+ case MCAST_MSFILTER:
+ {
+ struct group_filter gsf;
+ int err;
+ if (len < GROUP_FILTER_SIZE(0)) {
release_sock(sk);
+ return -EINVAL;
+ }
+ if (copy_from_user(&gsf, optval, GROUP_FILTER_SIZE(0))) {
+ release_sock(sk);
+ return -EFAULT;
+ }
+ err = ip_mc_gsfget(sk, &gsf,
+ (struct group_filter __user *)optval, optlen);
+ release_sock(sk);
+ return err;
+ }
+ case IP_PKTOPTIONS:
+ {
+ struct msghdr msg;
+
+ release_sock(sk);
- if (sk->sk_type != SOCK_STREAM)
- return -ENOPROTOOPT;
+ if (sk->sk_type != SOCK_STREAM)
+ return -ENOPROTOOPT;
- msg.msg_control = optval;
- msg.msg_controllen = len;
- msg.msg_flags = 0;
+ msg.msg_control = optval;
+ msg.msg_controllen = len;
+ msg.msg_flags = 0;
- if (inet->cmsg_flags & IP_CMSG_PKTINFO) {
- struct in_pktinfo info;
+ if (inet->cmsg_flags & IP_CMSG_PKTINFO) {
+ struct in_pktinfo info;
- info.ipi_addr.s_addr = inet->rcv_saddr;
- info.ipi_spec_dst.s_addr = inet->rcv_saddr;
- info.ipi_ifindex = inet->mc_index;
- put_cmsg(&msg, SOL_IP, IP_PKTINFO, sizeof(info), &info);
- }
- if (inet->cmsg_flags & IP_CMSG_TTL) {
- int hlim = inet->mc_ttl;
- put_cmsg(&msg, SOL_IP, IP_TTL, sizeof(hlim), &hlim);
- }
- len -= msg.msg_controllen;
- return put_user(len, optlen);
+ info.ipi_addr.s_addr = inet->rcv_saddr;
+ info.ipi_spec_dst.s_addr = inet->rcv_saddr;
+ info.ipi_ifindex = inet->mc_index;
+ put_cmsg(&msg, SOL_IP, IP_PKTINFO, sizeof(info), &info);
}
- case IP_FREEBIND:
- val = inet->freebind;
- break;
- default:
- release_sock(sk);
- return -ENOPROTOOPT;
+ if (inet->cmsg_flags & IP_CMSG_TTL) {
+ int hlim = inet->mc_ttl;
+ put_cmsg(&msg, SOL_IP, IP_TTL, sizeof(hlim), &hlim);
+ }
+ len -= msg.msg_controllen;
+ return put_user(len, optlen);
+ }
+ case IP_FREEBIND:
+ val = inet->freebind;
+ break;
+ default:
+ release_sock(sk);
+ return -ENOPROTOOPT;
}
release_sock(sk);
-
+
if (len < sizeof(int) && len > 0 && val>=0 && val<255) {
unsigned char ucval = (unsigned char)val;
len = 1;
- if(put_user(len, optlen))
+ if (put_user(len, optlen))
return -EFAULT;
- if(copy_to_user(optval,&ucval,1))
+ if (copy_to_user(optval,&ucval,1))
return -EFAULT;
} else {
len = min_t(unsigned int, sizeof(int), len);
- if(put_user(len, optlen))
+ if (put_user(len, optlen))
return -EFAULT;
- if(copy_to_user(optval,&val,len))
+ if (copy_to_user(optval,&val,len))
return -EFAULT;
}
return 0;
}
int ip_getsockopt(struct sock *sk, int level,
- int optname, char __user *optval, int __user *optlen)
+ int optname, char __user *optval, int __user *optlen)
{
int err;
&& (optname < MRT_BASE || optname > MRT_BASE+10)
#endif
) {
- int len;
+ int len;
- if(get_user(len,optlen))
+ if (get_user(len,optlen))
return -EFAULT;
lock_sock(sk);
&& (optname < MRT_BASE || optname > MRT_BASE+10)
#endif
) {
- int len;
+ int len;
if (get_user(len, optlen))
return -EFAULT;
projects / powerpc.git / blobdiff