* work I am currently employed to do there.
*
* All the material in this file is subject to the Gnu license version 2.
- * Neither Alan Cox nor the Swansea University Computer Society admit
+ * Neither Alan Cox nor the Swansea University Computer Society admit
* liability nor provide warranty for any of this software. This material
* is provided as is and at no charge.
*
unsigned char *node);
extern void ipxrtr_del_routes(struct ipx_interface *intrfc);
extern int ipxrtr_route_packet(struct sock *sk, struct sockaddr_ipx *usipx,
- struct iovec *iov, int len, int noblock);
+ struct iovec *iov, size_t len, int noblock);
extern int ipxrtr_route_skb(struct sk_buff *skb);
extern struct ipx_route *ipxrtr_lookup(__be32 net);
extern int ipxrtr_ioctl(unsigned int cmd, void __user *arg);
-#undef IPX_REFCNT_DEBUG
-#ifdef IPX_REFCNT_DEBUG
-atomic_t ipx_sock_nr;
-#endif
-
struct ipx_interface *ipx_interfaces_head(void)
{
struct ipx_interface *rc = NULL;
{
ipx_remove_socket(sk);
skb_queue_purge(&sk->sk_receive_queue);
-#ifdef IPX_REFCNT_DEBUG
- atomic_dec(&ipx_sock_nr);
- printk(KERN_DEBUG "IPX socket %p released, %d are still alive\n", sk,
- atomic_read(&ipx_sock_nr));
- if (atomic_read(&sk->sk_refcnt) != 1)
- printk(KERN_DEBUG "Destruction sock ipx %p delayed, cnt=%d\n",
- sk, atomic_read(&sk->sk_refcnt));
-#endif
+ sk_refcnt_debug_dec(sk);
sock_put(sk);
}
-/*
+/*
* The following code is used to support IPX Interfaces (IPXITF). An
* IPX interface is defined by a physical device and a frame type.
*/
struct net_device *dev = ptr;
struct ipx_interface *i, *tmp;
+ if (!net_eq(dev_net(dev), &init_net))
+ return NOTIFY_DONE;
+
if (event != NETDEV_DOWN && event != NETDEV_UP)
goto out;
struct ipx_interface *i, *tmp;
spin_lock_bh(&ipx_interfaces_lock);
- list_for_each_entry_safe(i, tmp, &ipx_interfaces, node)
+ list_for_each_entry_safe(i, tmp, &ipx_interfaces, node)
__ipxitf_put(i);
spin_unlock_bh(&ipx_interfaces_lock);
}
* You might call this a hack, but believe me, you do not want a
* complete NCP layer in the kernel, and this is VERY fast as well. */
struct sock *sk = NULL;
- int connection = 0;
+ int connection = 0;
u8 *ncphdr = (u8 *)(ipx + 1);
- if (*ncphdr == 0x22 && *(ncphdr + 1) == 0x22) /* NCP request */
+ if (*ncphdr == 0x22 && *(ncphdr + 1) == 0x22) /* NCP request */
connection = (((int) *(ncphdr + 5)) << 8) | (int) *(ncphdr + 3);
else if (*ncphdr == 0x77 && *(ncphdr + 1) == 0x77) /* BURST packet */
connection = (((int) *(ncphdr + 9)) << 8) | (int) *(ncphdr + 8);
if (intrfc == ipx_primary_net && ntohs(ipx->ipx_dest.sock) == 0x451)
sock1 = ncp_connection_hack(intrfc, ipx);
- if (!sock1)
+ if (!sock1)
/* No special socket found, forward the packet the normal way */
sock1 = ipxitf_find_socket(intrfc, ipx->ipx_dest.sock);
skb2 = alloc_skb(len, GFP_ATOMIC);
if (skb2) {
skb_reserve(skb2, out_offset);
- skb2->nh.raw = skb2->h.raw = skb_put(skb2, skb->len);
+ skb_reset_network_header(skb2);
+ skb_reset_transport_header(skb2);
+ skb_put(skb2, skb->len);
memcpy(ipx_hdr(skb2), ipx_hdr(skb), skb->len);
memcpy(skb2->cb, skb->cb, sizeof(skb->cb));
}
*last_hop = IPX_SKB_CB(skb)->last_hop.netnum;
IPX_SKB_CB(skb)->last_hop.index = -1;
}
-
- /*
+
+ /*
* We need to know how many skbuffs it will take to send out this
* packet to avoid unnecessary copies.
*/
-
- if (!dl || !dev || dev->flags & IFF_LOOPBACK)
+
+ if (!dl || !dev || dev->flags & IFF_LOOPBACK)
send_to_wire = 0; /* No non looped */
/*
- * See if this should be demuxed to sockets on this interface
+ * See if this should be demuxed to sockets on this interface
*
* We want to ensure the original was eaten or that we only use
* up clones.
*/
-
+
if (ipx->ipx_dest.net == intrfc->if_netnum) {
/*
* To our own node, loop and free the original.
/* See if we should update our network number */
if (!intrfc->if_netnum) /* net number of intrfc not known yet */
- ipxitf_discover_netnum(intrfc, skb);
-
+ ipxitf_discover_netnum(intrfc, skb);
+
IPX_SKB_CB(skb)->last_hop.index = -1;
if (ipx->ipx_type == IPX_TYPE_PPROP) {
rc = ipxitf_pprop(intrfc, skb);
static void ipxitf_discover_netnum(struct ipx_interface *intrfc,
struct sk_buff *skb)
-{
+{
const struct ipx_cb *cb = IPX_SKB_CB(skb);
/* see if this is an intra packet: source_net == dest_net */
* it, not even processing it locally, if it has exact %IPX_MAX_PPROP_HOPS we
* don't broadcast it, but process it locally. See chapter 5 of Novell's "IPX
* RIP and SAP Router Specification", Part Number 107-000029-001.
- *
+ *
* If it is valid, check if we have pprop broadcasting enabled by the user,
* if not, just return zero for local processing.
*
* tctrl <= 15, any data payload... */
if (IPX_SKB_CB(skb)->ipx_tctrl > IPX_MAX_PPROP_HOPS ||
ntohs(ipx->ipx_pktsize) < sizeof(struct ipxhdr) +
- IPX_MAX_PPROP_HOPS * sizeof(u32))
+ IPX_MAX_PPROP_HOPS * sizeof(u32))
goto out;
/* are we broadcasting this damn thing? */
rc = 0;
* locally. */
if (IPX_SKB_CB(skb)->ipx_tctrl == IPX_MAX_PPROP_HOPS)
goto out;
-
+
c = ((u8 *) ipx) + sizeof(struct ipxhdr);
l = (__be32 *) c;
/* Except unconfigured interfaces */
if (!ifcs->if_netnum)
continue;
-
+
/* That aren't in the list */
if (ifcs == intrfc)
continue;
if (intrfc)
ipxitf_put(intrfc);
- dev = dev_get_by_name(idef->ipx_device);
+ dev = dev_get_by_name(&init_net, idef->ipx_device);
rc = -ENODEV;
if (!dev)
goto out;
dlink_type = htons(ETH_P_IPX);
datalink = pEII_datalink;
break;
- } else
+ } else
printk(KERN_WARNING "IPX frame type EtherII over "
"token-ring is obsolete. Use SNAP "
"instead.\n");
if (!dlink_type)
goto out;
- dev = __dev_get_by_name(idef->ipx_device);
+ dev = __dev_get_by_name(&init_net, idef->ipx_device);
rc = -ENODEV;
if (!dev)
goto out;
if (copy_from_user(&ifr, arg, sizeof(ifr)))
break;
sipx = (struct sockaddr_ipx *)&ifr.ifr_addr;
- dev = __dev_get_by_name(ifr.ifr_name);
+ dev = __dev_get_by_name(&init_net, ifr.ifr_name);
rc = -ENODEV;
if (!dev)
break;
rc = 0;
break;
}
- case SIOCAIPXITFCRT:
+ case SIOCAIPXITFCRT:
rc = -EFAULT;
if (get_user(val, (unsigned char __user *) arg))
break;
rc = 0;
ipxcfg_auto_create_interfaces = val;
break;
- case SIOCAIPXPRISLT:
+ case SIOCAIPXPRISLT:
rc = -EFAULT;
if (get_user(val, (unsigned char __user *) arg))
break;
/*
* Checksum routine for IPX
*/
-
+
/* Note: We assume ipx_tctrl==0 and htons(length)==ipx_pktsize */
/* This functions should *not* mess with packet contents */
-__u16 ipx_cksum(struct ipxhdr *packet, int length)
+__be16 ipx_cksum(struct ipxhdr *packet, int length)
{
- /*
- * NOTE: sum is a net byte order quantity, which optimizes the
+ /*
+ * NOTE: sum is a net byte order quantity, which optimizes the
* loop. This only works on big and little endian machines. (I
* don't know of a machine that isn't.)
*/
- /* start at ipx_dest - We skip the checksum field and start with
- * ipx_type before the loop, not considering ipx_tctrl in the calc */
- __u16 *p = (__u16 *)&packet->ipx_dest;
- __u32 i = (length >> 1) - 1; /* Number of complete words */
- __u32 sum = packet->ipx_type << sizeof(packet->ipx_tctrl);
-
- /* Loop through all complete words except the checksum field,
- * ipx_type (accounted above) and ipx_tctrl (not used in the cksum) */
- while (--i)
+ /* handle the first 3 words separately; checksum should be skipped
+ * and ipx_tctrl masked out */
+ __u16 *p = (__u16 *)packet;
+ __u32 sum = p[1] + (p[2] & (__force u16)htons(0x00ff));
+ __u32 i = (length >> 1) - 3; /* Number of remaining complete words */
+
+ /* Loop through them */
+ p += 3;
+ while (i--)
sum += *p++;
/* Add on the last part word if it exists */
if (packet->ipx_pktsize & htons(1))
- sum += ntohs(0xff00) & *p;
+ sum += (__force u16)htons(0xff00) & *p;
/* Do final fixup */
sum = (sum & 0xffff) + (sum >> 16);
if (sum >= 0x10000)
sum++;
- return ~sum;
+ /*
+ * Leave 0 alone; we don't want 0xffff here. Note that we can't get
+ * here with 0x10000, so this check is the same as ((__u16)sum)
+ */
+ if (sum)
+ sum = ~sum;
+
+ return (__force __be16)sum;
}
const char *ipx_frame_name(__be16 frame)
rc = -EINVAL;
if(len < 0)
goto out;
-
+
rc = -EFAULT;
if (put_user(len, optlen) || copy_to_user(optval, &val, len))
goto out;
.obj_size = sizeof(struct ipx_sock),
};
-static int ipx_create(struct socket *sock, int protocol)
+static int ipx_create(struct net *net, struct socket *sock, int protocol)
{
int rc = -ESOCKTNOSUPPORT;
struct sock *sk;
+ if (net != &init_net)
+ return -EAFNOSUPPORT;
+
/*
* SPX support is not anymore in the kernel sources. If you want to
* ressurrect it, completing it and making it understand shared skbs,
if (sock->type != SOCK_DGRAM)
goto out;
- rc = -ENOMEM;
- sk = sk_alloc(PF_IPX, GFP_KERNEL, &ipx_proto, 1);
+ rc = -ENOMEM;
+ sk = sk_alloc(net, PF_IPX, GFP_KERNEL, &ipx_proto);
if (!sk)
goto out;
-#ifdef IPX_REFCNT_DEBUG
- atomic_inc(&ipx_sock_nr);
- printk(KERN_DEBUG "IPX socket %p created, now we have %d alive\n", sk,
- atomic_read(&ipx_sock_nr));
-#endif
+
+ sk_refcnt_debug_inc(sk);
sock_init_data(sock, sk);
sk->sk_no_check = 1; /* Checksum off by default */
sock->ops = &ipx_dgram_ops;
sock_set_flag(sk, SOCK_DEAD);
sock->sk = NULL;
+ sk_refcnt_debug_release(sk);
ipx_destroy_socket(sk);
out:
return 0;
goto out;
}
- /* We can either connect to primary network or somewhere
+ /* We can either connect to primary network or somewhere
* we can route to */
rt = ipxrtr_lookup(addr->sipx_network);
rc = -ENETUNREACH;
struct ipxhdr *ipx;
u16 ipx_pktsize;
int rc = 0;
-
- /* Not ours */
- if (skb->pkt_type == PACKET_OTHERHOST)
- goto drop;
+
+ if (!net_eq(dev_net(dev), &init_net))
+ goto drop;
+
+ /* Not ours */
+ if (skb->pkt_type == PACKET_OTHERHOST)
+ goto drop;
if ((skb = skb_share_check(skb, GFP_ATOMIC)) == NULL)
goto out;
goto drop;
ipx_pktsize = ntohs(ipx_hdr(skb)->ipx_pktsize);
-
+
/* Too small or invalid header? */
if (ipx_pktsize < sizeof(struct ipxhdr) ||
!pskb_may_pull(skb, ipx_pktsize))
goto drop;
-
+
ipx = ipx_hdr(skb);
if (ipx->ipx_checksum != IPX_NO_CHECKSUM &&
ipx->ipx_checksum != ipx_cksum(ipx, ipx_pktsize))
if (rc)
goto out;
}
-
+
rc = -ENOTCONN;
if (sock_flag(sk, SOCK_ZAPPED))
goto out;
copied);
if (rc)
goto out_free;
- if (skb->tstamp.off_sec)
- skb_get_timestamp(skb, &sk->sk_stamp);
+ if (skb->tstamp.tv64)
+ sk->sk_stamp = skb->tstamp;
msg->msg_namelen = sizeof(*sipx);
* This socket wants to take care of the NCP connection
* handed to us in arg.
*/
- rc = -EPERM;
- if (!capable(CAP_NET_ADMIN))
+ rc = -EPERM;
+ if (!capable(CAP_NET_ADMIN))
break;
rc = get_user(ipx_sk(sk)->ipx_ncp_conn,
(const unsigned short __user *)argp);
break;
case SIOCGSTAMP:
rc = -EINVAL;
- if (sk)
+ if (sk)
rc = sock_get_timestamp(sk, argp);
break;
case SIOCGIFDSTADDR:
.sendpage = sock_no_sendpage,
};
-#include <linux/smp_lock.h>
SOCKOPS_WRAP(ipx_dgram, PF_IPX);
-static struct packet_type ipx_8023_packet_type = {
- .type = __constant_htons(ETH_P_802_3),
+static struct packet_type ipx_8023_packet_type __read_mostly = {
+ .type = cpu_to_be16(ETH_P_802_3),
.func = ipx_rcv,
};
-static struct packet_type ipx_dix_packet_type = {
- .type = __constant_htons(ETH_P_IPX),
+static struct packet_type ipx_dix_packet_type __read_mostly = {
+ .type = cpu_to_be16(ETH_P_IPX),
.func = ipx_rcv,
};
extern struct datalink_proto *make_EII_client(void);
extern void destroy_EII_client(struct datalink_proto *);
-static unsigned char ipx_8022_type = 0xE0;
-static unsigned char ipx_snap_id[5] = { 0x0, 0x0, 0x0, 0x81, 0x37 };
-static char ipx_EII_err_msg[] __initdata =
+static const unsigned char ipx_8022_type = 0xE0;
+static const unsigned char ipx_snap_id[5] = { 0x0, 0x0, 0x0, 0x81, 0x37 };
+static const char ipx_EII_err_msg[] __initconst =
KERN_CRIT "IPX: Unable to register with Ethernet II\n";
-static char ipx_8023_err_msg[] __initdata =
+static const char ipx_8023_err_msg[] __initconst =
KERN_CRIT "IPX: Unable to register with 802.3\n";
-static char ipx_llc_err_msg[] __initdata =
+static const char ipx_llc_err_msg[] __initconst =
KERN_CRIT "IPX: Unable to register with 802.2\n";
-static char ipx_snap_err_msg[] __initdata =
+static const char ipx_snap_err_msg[] __initconst =
KERN_CRIT "IPX: Unable to register with SNAP\n";
static int __init ipx_init(void)
ipxitf_cleanup();
- unregister_snap_client(pSNAP_datalink);
- pSNAP_datalink = NULL;
+ if (pSNAP_datalink) {
+ unregister_snap_client(pSNAP_datalink);
+ pSNAP_datalink = NULL;
+ }
- unregister_8022_client(p8022_datalink);
- p8022_datalink = NULL;
+ if (p8022_datalink) {
+ unregister_8022_client(p8022_datalink);
+ p8022_datalink = NULL;
+ }
dev_remove_pack(&ipx_8023_packet_type);
- destroy_8023_client(p8023_datalink);
- p8023_datalink = NULL;
+ if (p8023_datalink) {
+ destroy_8023_client(p8023_datalink);
+ p8023_datalink = NULL;
+ }
dev_remove_pack(&ipx_dix_packet_type);
- destroy_EII_client(pEII_datalink);
- pEII_datalink = NULL;
+ if (pEII_datalink) {
+ destroy_EII_client(pEII_datalink);
+ pEII_datalink = NULL;
+ }
proto_unregister(&ipx_proto);
sock_unregister(ipx_family_ops.family);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff