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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _NET_INET_IPX_H_
#define _NET_INET_IPX_H_
/*
 *	The following information is in its entirety obtained from:
 *
 *	Novell 'IPX Router Specification' Version 1.10 
 *		Part No. 107-000029-001
 *
 *	Which is available from ftp.novell.com
 */

#include <linux/netdevice.h>
#include <net/datalink.h>
#include <linux/ipx.h>
#include <linux/list.h>
#include <linux/slab.h>
#include <linux/refcount.h>

struct ipx_address {
	__be32  net;
	__u8    node[IPX_NODE_LEN]; 
	__be16  sock;
};

#define ipx_broadcast_node	"\377\377\377\377\377\377"
#define ipx_this_node           "\0\0\0\0\0\0"

#define IPX_MAX_PPROP_HOPS 8

struct ipxhdr {
	__be16			ipx_checksum __packed;
#define IPX_NO_CHECKSUM	cpu_to_be16(0xFFFF)
	__be16			ipx_pktsize __packed;
	__u8			ipx_tctrl;
	__u8			ipx_type;
#define IPX_TYPE_UNKNOWN	0x00
#define IPX_TYPE_RIP		0x01	/* may also be 0 */
#define IPX_TYPE_SAP		0x04	/* may also be 0 */
#define IPX_TYPE_SPX		0x05	/* SPX protocol */
#define IPX_TYPE_NCP		0x11	/* $lots for docs on this (SPIT) */
#define IPX_TYPE_PPROP		0x14	/* complicated flood fill brdcast */
	struct ipx_address	ipx_dest __packed;
	struct ipx_address	ipx_source __packed;
};

/* From af_ipx.c */
extern int sysctl_ipx_pprop_broadcasting;

static __inline__ struct ipxhdr *ipx_hdr(struct sk_buff *skb)
{
	return (struct ipxhdr *)skb_transport_header(skb);
}

struct ipx_interface {
	/* IPX address */
	__be32			if_netnum;
	unsigned char		if_node[IPX_NODE_LEN];
	refcount_t		refcnt;

	/* physical device info */
	struct net_device	*if_dev;
	struct datalink_proto	*if_dlink;
	__be16			if_dlink_type;

	/* socket support */
	unsigned short		if_sknum;
	struct hlist_head	if_sklist;
	spinlock_t		if_sklist_lock;

	/* administrative overhead */
	int			if_ipx_offset;
	unsigned char		if_internal;
	unsigned char		if_primary;
	
	struct list_head	node; /* node in ipx_interfaces list */
};

struct ipx_route {
	__be32			ir_net;
	struct ipx_interface	*ir_intrfc;
	unsigned char		ir_routed;
	unsigned char		ir_router_node[IPX_NODE_LEN];
	struct list_head	node; /* node in ipx_routes list */
	refcount_t		refcnt;
};

struct ipx_cb {
	u8	ipx_tctrl;
	__be32	ipx_dest_net;
	__be32	ipx_source_net;
	struct {
		__be32 netnum;
		int index;
	} last_hop;
};

#include <net/sock.h>

struct ipx_sock {
	/* struct sock has to be the first member of ipx_sock */
	struct sock		sk;
	struct ipx_address	dest_addr;
	struct ipx_interface	*intrfc;
	__be16			port;
#ifdef CONFIG_IPX_INTERN
	unsigned char		node[IPX_NODE_LEN];
#endif
	unsigned short		type;
	/*
	 * To handle special ncp connection-handling sockets for mars_nwe,
 	 * the connection number must be stored in the socket.
	 */
	unsigned short		ipx_ncp_conn;
};

static inline struct ipx_sock *ipx_sk(struct sock *sk)
{
	return (struct ipx_sock *)sk;
}

#define IPX_SKB_CB(__skb) ((struct ipx_cb *)&((__skb)->cb[0]))

#define IPX_MIN_EPHEMERAL_SOCKET	0x4000
#define IPX_MAX_EPHEMERAL_SOCKET	0x7fff

extern struct list_head ipx_routes;
extern rwlock_t ipx_routes_lock;

extern struct list_head ipx_interfaces;
struct ipx_interface *ipx_interfaces_head(void);
extern spinlock_t ipx_interfaces_lock;

extern struct ipx_interface *ipx_primary_net;

int ipx_proc_init(void);
void ipx_proc_exit(void);

const char *ipx_frame_name(__be16);
const char *ipx_device_name(struct ipx_interface *intrfc);

static __inline__ void ipxitf_hold(struct ipx_interface *intrfc)
{
	refcount_inc(&intrfc->refcnt);
}

void ipxitf_down(struct ipx_interface *intrfc);
struct ipx_interface *ipxitf_find_using_net(__be32 net);
int ipxitf_send(struct ipx_interface *intrfc, struct sk_buff *skb, char *node);
__be16 ipx_cksum(struct ipxhdr *packet, int length);
int ipxrtr_add_route(__be32 network, struct ipx_interface *intrfc,
		     unsigned char *node);
void ipxrtr_del_routes(struct ipx_interface *intrfc);
int ipxrtr_route_packet(struct sock *sk, struct sockaddr_ipx *usipx,
			struct msghdr *msg, size_t len, int noblock);
int ipxrtr_route_skb(struct sk_buff *skb);
struct ipx_route *ipxrtr_lookup(__be32 net);
int ipxrtr_ioctl(unsigned int cmd, void __user *arg);

static __inline__ void ipxitf_put(struct ipx_interface *intrfc)
{
	if (refcount_dec_and_test(&intrfc->refcnt))
		ipxitf_down(intrfc);
}

static __inline__ void ipxrtr_hold(struct ipx_route *rt)
{
	        refcount_inc(&rt->refcnt);
}

static __inline__ void ipxrtr_put(struct ipx_route *rt)
{
	        if (refcount_dec_and_test(&rt->refcnt))
			                kfree(rt);
}
#endif /* _NET_INET_IPX_H_ */

Filemanager

Name Type Size Permission Actions
9p Folder 0755
bluetooth Folder 0755
caif Folder 0755
iucv Folder 0755
netfilter Folder 0755
netns Folder 0755
nfc Folder 0755
phonet Folder 0755
sctp Folder 0755
tc_act Folder 0755
6lowpan.h File 10.03 KB 0644
Space.h File 1.15 KB 0644
act_api.h File 6.38 KB 0644
addrconf.h File 12.63 KB 0644
af_ieee802154.h File 1.55 KB 0644
af_rxrpc.h File 2.79 KB 0644
af_unix.h File 2.22 KB 0644
af_vsock.h File 7.21 KB 0644
ah.h File 382 B 0644
arp.h File 2 KB 0644
atmclip.h File 1.48 KB 0644
ax25.h File 15.02 KB 0644
ax88796.h File 998 B 0644
bond_3ad.h File 9.79 KB 0644
bond_alb.h File 6.6 KB 0644
bond_options.h File 3.92 KB 0644
bonding.h File 19.1 KB 0644
busy_poll.h File 3.8 KB 0644
calipso.h File 2.15 KB 0644
cfg80211-wext.h File 1.95 KB 0644
cfg80211.h File 221.24 KB 0644
cfg802154.h File 10.89 KB 0644
checksum.h File 4.76 KB 0644
cipso_ipv4.h File 8.2 KB 0644
cls_cgroup.h File 2.15 KB 0644
codel.h File 5.65 KB 0644
codel_impl.h File 7.98 KB 0644
codel_qdisc.h File 2.9 KB 0644
compat.h File 2.11 KB 0644
datalink.h File 619 B 0644
dcbevent.h File 1.26 KB 0644
dcbnl.h File 4.2 KB 0644
devlink.h File 13.25 KB 0644
dn.h File 6.88 KB 0644
dn_dev.h File 5.36 KB 0644
dn_fib.h File 3.98 KB 0644
dn_neigh.h File 968 B 0644
dn_nsp.h File 5.83 KB 0644
dn_route.h File 4.36 KB 0644
dsa.h File 13.94 KB 0644
dsfield.h File 1.11 KB 0644
dst.h File 13.48 KB 0644
dst_cache.h File 2.53 KB 0644
dst_metadata.h File 5.39 KB 0644
dst_ops.h File 2 KB 0644
erspan.h File 2.11 KB 0644
esp.h File 877 B 0644
ethoc.h File 538 B 0644
fib_notifier.h File 1.29 KB 0644
fib_rules.h File 4.18 KB 0644
firewire.h File 636 B 0644
flow.h File 6.16 KB 0644
flow_dissector.h File 7.55 KB 0644
fou.h File 549 B 0644
fq.h File 2.67 KB 0644
fq_impl.h File 6.9 KB 0644
garp.h File 2.62 KB 0644
gen_stats.h File 2.34 KB 0644
genetlink.h File 11.3 KB 0644
geneve.h File 1.67 KB 0644
gre.h File 2.99 KB 0644
gro_cells.h File 443 B 0644
gtp.h File 633 B 0644
gue.h File 3.23 KB 0644
hwbm.h File 937 B 0644
icmp.h File 2.01 KB 0644
ieee80211_radiotap.h File 6.63 KB 0644
ieee802154_netdev.h File 9.14 KB 0644
if_inet6.h File 6.13 KB 0644
ife.h File 1.06 KB 0644
ila.h File 498 B 0644
inet6_connection_sock.h File 976 B 0644
inet6_hashtables.h File 3.7 KB 0644
inet_common.h File 1.89 KB 0644
inet_connection_sock.h File 10.48 KB 0644
inet_ecn.h File 6.02 KB 0644
inet_frag.h File 4.51 KB 0644
inet_hashtables.h File 12.91 KB 0644
inet_sock.h File 8.25 KB 0644
inet_timewait_sock.h File 3.82 KB 0644
inetpeer.h File 3.29 KB 0644
ip.h File 18.51 KB 0644
ip6_checksum.h File 2.89 KB 0644
ip6_fib.h File 10.04 KB 0644
ip6_route.h File 7.63 KB 0644
ip6_tunnel.h File 4.72 KB 0644
ip_fib.h File 10.72 KB 0644
ip_tunnels.h File 13.61 KB 0644
ip_vs.h File 46.78 KB 0644
ipcomp.h File 659 B 0644
ipconfig.h File 811 B 0644
ipv6.h File 29.97 KB 0644
ipv6_frag.h File 2.54 KB 0644
ipx.h File 4.4 KB 0644
iw_handler.h File 20.91 KB 0644
kcm.h File 4.96 KB 0644
l3mdev.h File 5.86 KB 0644
lapb.h File 4.75 KB 0644
lib80211.h File 3.92 KB 0644
llc.h File 4.41 KB 0644
llc_c_ac.h File 9.31 KB 0644
llc_c_ev.h File 10.68 KB 0644
llc_c_st.h File 1.72 KB 0644
llc_conn.h File 4.06 KB 0644
llc_if.h File 2.16 KB 0644
llc_pdu.h File 14.44 KB 0644
llc_s_ac.h File 1.55 KB 0644
llc_s_ev.h File 2.2 KB 0644
llc_s_st.h File 947 B 0644
llc_sap.h File 1.08 KB 0644
lwtunnel.h File 5.84 KB 0644
mac80211.h File 230.36 KB 0644
mac802154.h File 15.27 KB 0644
mip6.h File 1.58 KB 0644
mld.h File 2.8 KB 0644
mpls.h File 932 B 0644
mpls_iptunnel.h File 827 B 0644
mrp.h File 3.03 KB 0644
ncsi.h File 1.92 KB 0644
ndisc.h File 13.77 KB 0644
neighbour.h File 15.06 KB 0644
net_namespace.h File 10.08 KB 0644
net_ratelimit.h File 220 B 0644
netevent.h File 910 B 0644
netlabel.h File 20.74 KB 0644
netlink.h File 40.39 KB 0644
netprio_cgroup.h File 1.24 KB 0644
netrom.h File 7.68 KB 0644
nexthop.h File 865 B 0644
nl802154.h File 12.09 KB 0644
nsh.h File 12.31 KB 0644
p8022.h File 447 B 0644
ping.h File 3.45 KB 0644
pkt_cls.h File 17.34 KB 0644
pkt_sched.h File 4.05 KB 0644
pptp.h File 557 B 0644
protocol.h File 4.08 KB 0644
psample.h File 860 B 0644
psnap.h File 351 B 0644
raw.h File 2.07 KB 0644
rawv6.h File 854 B 0644
red.h File 10.45 KB 0644
regulatory.h File 10.12 KB 0644
request_sock.h File 6.46 KB 0644
rose.h File 7.62 KB 0644
route.h File 10.02 KB 0644
rtnetlink.h File 6.13 KB 0644
sch_generic.h File 23.3 KB 0644
scm.h File 3.5 KB 0644
secure_seq.h File 855 B 0644
seg6.h File 1.66 KB 0644
seg6_hmac.h File 1.65 KB 0644
slhc_vj.h File 6.67 KB 0644
smc.h File 440 B 0644
snmp.h File 5.23 KB 0644
sock.h File 69.75 KB 0644
sock_reuseport.h File 863 B 0644
stp.h File 383 B 0644
strparser.h File 3.75 KB 0644
switchdev.h File 6.52 KB 0644
tcp.h File 62.8 KB 0644
tcp_states.h File 1.26 KB 0644
timewait_sock.h File 1.11 KB 0644
tipc.h File 2.34 KB 0644
tls.h File 7.12 KB 0644
transp_v6.h File 2.08 KB 0644
tso.h File 515 B 0644
tun_proto.h File 988 B 0644
udp.h File 12.82 KB 0644
udp_tunnel.h File 5.12 KB 0644
udplite.h File 3.83 KB 0644
vsock_addr.h File 1.05 KB 0644
vxlan.h File 10.43 KB 0644
wext.h File 1.51 KB 0644
wimax.h File 19.97 KB 0644
x25.h File 9.43 KB 0644
x25device.h File 387 B 0644
xfrm.h File 53.72 KB 0644