1 files changed, 0 insertions, 293 deletions
diff --git a/net/ipx/ipx_route.c b/net/ipx/ipx_route.c
deleted file mode 100644
index 3cf93aa9f284..000000000000
--- a/net/ipx/ipx_route.c
+++ /dev/null
@@ -1,293 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- *	Implements the IPX routing routines.
- *	Code moved from af_ipx.c.
- *
- *	Arnaldo Carvalho de Melo <acme@conectiva.com.br>, 2003
- *
- *	See net/ipx/ChangeLog.
- */
-
-#include <linux/list.h>
-#include <linux/route.h>
-#include <linux/slab.h>
-#include <linux/spinlock.h>
-
-#include <net/ipx.h>
-#include <net/sock.h>
-
-LIST_HEAD(ipx_routes);
-DEFINE_RWLOCK(ipx_routes_lock);
-
-extern struct ipx_interface *ipx_internal_net;
-
-extern struct ipx_interface *ipxitf_find_using_net(__be32 net);
-extern int ipxitf_demux_socket(struct ipx_interface *intrfc,
-			       struct sk_buff *skb, int copy);
-extern int ipxitf_demux_socket(struct ipx_interface *intrfc,
-			       struct sk_buff *skb, int copy);
-
-struct ipx_route *ipxrtr_lookup(__be32 net)
-{
-	struct ipx_route *r;
-
-	read_lock_bh(&ipx_routes_lock);
-	list_for_each_entry(r, &ipx_routes, node)
-		if (r->ir_net == net) {
-			ipxrtr_hold(r);
-			goto unlock;
-		}
-	r = NULL;
-unlock:
-	read_unlock_bh(&ipx_routes_lock);
-	return r;
-}
-
-/*
- * Caller must hold a reference to intrfc
- */
-int ipxrtr_add_route(__be32 network, struct ipx_interface *intrfc,
-		     unsigned char *node)
-{
-	struct ipx_route *rt;
-	int rc;
-
-	/* Get a route structure; either existing or create */
-	rt = ipxrtr_lookup(network);
-	if (!rt) {
-		rt = kmalloc(sizeof(*rt), GFP_ATOMIC);
-		rc = -EAGAIN;
-		if (!rt)
-			goto out;
-
-		refcount_set(&rt->refcnt, 1);
-		ipxrtr_hold(rt);
-		write_lock_bh(&ipx_routes_lock);
-		list_add(&rt->node, &ipx_routes);
-		write_unlock_bh(&ipx_routes_lock);
-	} else {
-		rc = -EEXIST;
-		if (intrfc == ipx_internal_net)
-			goto out_put;
-	}
-
-	rt->ir_net 	= network;
-	rt->ir_intrfc 	= intrfc;
-	if (!node) {
-		memset(rt->ir_router_node, '\0', IPX_NODE_LEN);
-		rt->ir_routed = 0;
-	} else {
-		memcpy(rt->ir_router_node, node, IPX_NODE_LEN);
-		rt->ir_routed = 1;
-	}
-
-	rc = 0;
-out_put:
-	ipxrtr_put(rt);
-out:
-	return rc;
-}
-
-void ipxrtr_del_routes(struct ipx_interface *intrfc)
-{
-	struct ipx_route *r, *tmp;
-
-	write_lock_bh(&ipx_routes_lock);
-	list_for_each_entry_safe(r, tmp, &ipx_routes, node)
-		if (r->ir_intrfc == intrfc) {
-			list_del(&r->node);
-			ipxrtr_put(r);
-		}
-	write_unlock_bh(&ipx_routes_lock);
-}
-
-static int ipxrtr_create(struct ipx_route_definition *rd)
-{
-	struct ipx_interface *intrfc;
-	int rc = -ENETUNREACH;
-
-	/* Find the appropriate interface */
-	intrfc = ipxitf_find_using_net(rd->ipx_router_network);
-	if (!intrfc)
-		goto out;
-	rc = ipxrtr_add_route(rd->ipx_network, intrfc, rd->ipx_router_node);
-	ipxitf_put(intrfc);
-out:
-	return rc;
-}
-
-static int ipxrtr_delete(__be32 net)
-{
-	struct ipx_route *r, *tmp;
-	int rc;
-
-	write_lock_bh(&ipx_routes_lock);
-	list_for_each_entry_safe(r, tmp, &ipx_routes, node)
-		if (r->ir_net == net) {
-			/* Directly connected; can't lose route */
-			rc = -EPERM;
-			if (!r->ir_routed)
-				goto out;
-			list_del(&r->node);
-			ipxrtr_put(r);
-			rc = 0;
-			goto out;
-		}
-	rc = -ENOENT;
-out:
-	write_unlock_bh(&ipx_routes_lock);
-	return rc;
-}
-
-/*
- * The skb has to be unshared, we'll end up calling ipxitf_send, that'll
- * modify the packet
- */
-int ipxrtr_route_skb(struct sk_buff *skb)
-{
-	struct ipxhdr *ipx = ipx_hdr(skb);
-	struct ipx_route *r = ipxrtr_lookup(IPX_SKB_CB(skb)->ipx_dest_net);
-
-	if (!r) {	/* no known route */
-		kfree_skb(skb);
-		return 0;
-	}
-
-	ipxitf_hold(r->ir_intrfc);
-	ipxitf_send(r->ir_intrfc, skb, r->ir_routed ?
-			r->ir_router_node : ipx->ipx_dest.node);
-	ipxitf_put(r->ir_intrfc);
-	ipxrtr_put(r);
-
-	return 0;
-}
-
-/*
- * Route an outgoing frame from a socket.
- */
-int ipxrtr_route_packet(struct sock *sk, struct sockaddr_ipx *usipx,
-			struct msghdr *msg, size_t len, int noblock)
-{
-	struct sk_buff *skb;
-	struct ipx_sock *ipxs = ipx_sk(sk);
-	struct ipx_interface *intrfc;
-	struct ipxhdr *ipx;
-	size_t size;
-	int ipx_offset;
-	struct ipx_route *rt = NULL;
-	int rc;
-
-	/* Find the appropriate interface on which to send packet */
-	if (!usipx->sipx_network && ipx_primary_net) {
-		usipx->sipx_network = ipx_primary_net->if_netnum;
-		intrfc = ipx_primary_net;
-	} else {
-		rt = ipxrtr_lookup(usipx->sipx_network);
-		rc = -ENETUNREACH;
-		if (!rt)
-			goto out;
-		intrfc = rt->ir_intrfc;
-	}
-
-	ipxitf_hold(intrfc);
-	ipx_offset = intrfc->if_ipx_offset;
-	size = sizeof(struct ipxhdr) + len + ipx_offset;
-
-	skb = sock_alloc_send_skb(sk, size, noblock, &rc);
-	if (!skb)
-		goto out_put;
-
-	skb_reserve(skb, ipx_offset);
-	skb->sk = sk;
-
-	/* Fill in IPX header */
-	skb_reset_network_header(skb);
-	skb_reset_transport_header(skb);
-	skb_put(skb, sizeof(struct ipxhdr));
-	ipx = ipx_hdr(skb);
-	ipx->ipx_pktsize = htons(len + sizeof(struct ipxhdr));
-	IPX_SKB_CB(skb)->ipx_tctrl = 0;
-	ipx->ipx_type 	 = usipx->sipx_type;
-
-	IPX_SKB_CB(skb)->last_hop.index = -1;
-#ifdef CONFIG_IPX_INTERN
-	IPX_SKB_CB(skb)->ipx_source_net = ipxs->intrfc->if_netnum;
-	memcpy(ipx->ipx_source.node, ipxs->node, IPX_NODE_LEN);
-#else
-	rc = ntohs(ipxs->port);
-	if (rc == 0x453 || rc == 0x452) {
-		/* RIP/SAP special handling for mars_nwe */
-		IPX_SKB_CB(skb)->ipx_source_net = intrfc->if_netnum;
-		memcpy(ipx->ipx_source.node, intrfc->if_node, IPX_NODE_LEN);
-	} else {
-		IPX_SKB_CB(skb)->ipx_source_net = ipxs->intrfc->if_netnum;
-		memcpy(ipx->ipx_source.node, ipxs->intrfc->if_node,
-			IPX_NODE_LEN);
-	}
-#endif	/* CONFIG_IPX_INTERN */
-	ipx->ipx_source.sock		= ipxs->port;
-	IPX_SKB_CB(skb)->ipx_dest_net	= usipx->sipx_network;
-	memcpy(ipx->ipx_dest.node, usipx->sipx_node, IPX_NODE_LEN);
-	ipx->ipx_dest.sock		= usipx->sipx_port;
-
-	rc = memcpy_from_msg(skb_put(skb, len), msg, len);
-	if (rc) {
-		kfree_skb(skb);
-		goto out_put;
-	}
-
-	/* Apply checksum. Not allowed on 802.3 links. */
-	if (sk->sk_no_check_tx ||
-	    intrfc->if_dlink_type == htons(IPX_FRAME_8023))
-		ipx->ipx_checksum = htons(0xFFFF);
-	else
-		ipx->ipx_checksum = ipx_cksum(ipx, len + sizeof(struct ipxhdr));
-
-	rc = ipxitf_send(intrfc, skb, (rt && rt->ir_routed) ?
-			 rt->ir_router_node : ipx->ipx_dest.node);
-out_put:
-	ipxitf_put(intrfc);
-	if (rt)
-		ipxrtr_put(rt);
-out:
-	return rc;
-}
-
-/*
- * We use a normal struct rtentry for route handling
- */
-int ipxrtr_ioctl(unsigned int cmd, void __user *arg)
-{
-	struct rtentry rt;	/* Use these to behave like 'other' stacks */
-	struct sockaddr_ipx *sg, *st;
-	int rc = -EFAULT;
-
-	if (copy_from_user(&rt, arg, sizeof(rt)))
-		goto out;
-
-	sg = (struct sockaddr_ipx *)&rt.rt_gateway;
-	st = (struct sockaddr_ipx *)&rt.rt_dst;
-
-	rc = -EINVAL;
-	if (!(rt.rt_flags & RTF_GATEWAY) || /* Direct routes are fixed */
-	    sg->sipx_family != AF_IPX ||
-	    st->sipx_family != AF_IPX)
-		goto out;
-
-	switch (cmd) {
-	case SIOCDELRT:
-		rc = ipxrtr_delete(st->sipx_network);
-		break;
-	case SIOCADDRT: {
-		struct ipx_route_definition f;
-		f.ipx_network		= st->sipx_network;
-		f.ipx_router_network	= sg->sipx_network;
-		memcpy(f.ipx_router_node, sg->sipx_node, IPX_NODE_LEN);
-		rc = ipxrtr_create(&f);
-		break;
-	}
-	}
-
-out:
-	return rc;
-}