~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

TOMOYO Linux Cross Reference
Linux/include/net/ipx.h

Version: ~ [ linux-5.14-rc3 ] ~ [ linux-5.13.5 ] ~ [ linux-5.12.19 ] ~ [ linux-5.11.22 ] ~ [ linux-5.10.53 ] ~ [ linux-5.9.16 ] ~ [ linux-5.8.18 ] ~ [ linux-5.7.19 ] ~ [ linux-5.6.19 ] ~ [ linux-5.5.19 ] ~ [ linux-5.4.135 ] ~ [ linux-5.3.18 ] ~ [ linux-5.2.21 ] ~ [ linux-5.1.21 ] ~ [ linux-5.0.21 ] ~ [ linux-4.20.17 ] ~ [ linux-4.19.198 ] ~ [ linux-4.18.20 ] ~ [ linux-4.17.19 ] ~ [ linux-4.16.18 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.240 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.276 ] ~ [ linux-4.8.17 ] ~ [ linux-4.7.10 ] ~ [ linux-4.6.7 ] ~ [ linux-4.5.7 ] ~ [ linux-4.4.276 ] ~ [ linux-4.3.6 ] ~ [ linux-4.2.8 ] ~ [ linux-4.1.52 ] ~ [ linux-4.0.9 ] ~ [ linux-3.18.140 ] ~ [ linux-3.16.85 ] ~ [ linux-3.14.79 ] ~ [ linux-3.12.74 ] ~ [ linux-3.10.108 ] ~ [ linux-2.6.32.71 ] ~ [ linux-2.6.0 ] ~ [ linux-2.4.37.11 ] ~ [ unix-v6-master ] ~ [ ccs-tools-1.8.5 ] ~ [ policy-sample ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

  1 /* SPDX-License-Identifier: GPL-2.0 */
  2 #ifndef _NET_INET_IPX_H_
  3 #define _NET_INET_IPX_H_
  4 /*
  5  *      The following information is in its entirety obtained from:
  6  *
  7  *      Novell 'IPX Router Specification' Version 1.10 
  8  *              Part No. 107-000029-001
  9  *
 10  *      Which is available from ftp.novell.com
 11  */
 12 
 13 #include <linux/netdevice.h>
 14 #include <net/datalink.h>
 15 #include <linux/ipx.h>
 16 #include <linux/list.h>
 17 #include <linux/slab.h>
 18 #include <linux/refcount.h>
 19 
 20 struct ipx_address {
 21         __be32  net;
 22         __u8    node[IPX_NODE_LEN]; 
 23         __be16  sock;
 24 };
 25 
 26 #define ipx_broadcast_node      "\377\377\377\377\377\377"
 27 #define ipx_this_node           "\0\0\0\0\0\0"
 28 
 29 #define IPX_MAX_PPROP_HOPS 8
 30 
 31 struct ipxhdr {
 32         __be16                  ipx_checksum __packed;
 33 #define IPX_NO_CHECKSUM cpu_to_be16(0xFFFF)
 34         __be16                  ipx_pktsize __packed;
 35         __u8                    ipx_tctrl;
 36         __u8                    ipx_type;
 37 #define IPX_TYPE_UNKNOWN        0x00
 38 #define IPX_TYPE_RIP            0x01    /* may also be 0 */
 39 #define IPX_TYPE_SAP            0x04    /* may also be 0 */
 40 #define IPX_TYPE_SPX            0x05    /* SPX protocol */
 41 #define IPX_TYPE_NCP            0x11    /* $lots for docs on this (SPIT) */
 42 #define IPX_TYPE_PPROP          0x14    /* complicated flood fill brdcast */
 43         struct ipx_address      ipx_dest __packed;
 44         struct ipx_address      ipx_source __packed;
 45 };
 46 
 47 /* From af_ipx.c */
 48 extern int sysctl_ipx_pprop_broadcasting;
 49 
 50 struct ipx_interface {
 51         /* IPX address */
 52         __be32                  if_netnum;
 53         unsigned char           if_node[IPX_NODE_LEN];
 54         refcount_t              refcnt;
 55 
 56         /* physical device info */
 57         struct net_device       *if_dev;
 58         struct datalink_proto   *if_dlink;
 59         __be16                  if_dlink_type;
 60 
 61         /* socket support */
 62         unsigned short          if_sknum;
 63         struct hlist_head       if_sklist;
 64         spinlock_t              if_sklist_lock;
 65 
 66         /* administrative overhead */
 67         int                     if_ipx_offset;
 68         unsigned char           if_internal;
 69         unsigned char           if_primary;
 70         
 71         struct list_head        node; /* node in ipx_interfaces list */
 72 };
 73 
 74 struct ipx_route {
 75         __be32                  ir_net;
 76         struct ipx_interface    *ir_intrfc;
 77         unsigned char           ir_routed;
 78         unsigned char           ir_router_node[IPX_NODE_LEN];
 79         struct list_head        node; /* node in ipx_routes list */
 80         refcount_t              refcnt;
 81 };
 82 
 83 struct ipx_cb {
 84         u8      ipx_tctrl;
 85         __be32  ipx_dest_net;
 86         __be32  ipx_source_net;
 87         struct {
 88                 __be32 netnum;
 89                 int index;
 90         } last_hop;
 91 };
 92 
 93 #include <net/sock.h>
 94 
 95 struct ipx_sock {
 96         /* struct sock has to be the first member of ipx_sock */
 97         struct sock             sk;
 98         struct ipx_address      dest_addr;
 99         struct ipx_interface    *intrfc;
100         __be16                  port;
101 #ifdef CONFIG_IPX_INTERN
102         unsigned char           node[IPX_NODE_LEN];
103 #endif
104         unsigned short          type;
105         /*
106          * To handle special ncp connection-handling sockets for mars_nwe,
107          * the connection number must be stored in the socket.
108          */
109         unsigned short          ipx_ncp_conn;
110 };
111 
112 static inline struct ipx_sock *ipx_sk(struct sock *sk)
113 {
114         return (struct ipx_sock *)sk;
115 }
116 
117 #define IPX_SKB_CB(__skb) ((struct ipx_cb *)&((__skb)->cb[0]))
118 
119 #define IPX_MIN_EPHEMERAL_SOCKET        0x4000
120 #define IPX_MAX_EPHEMERAL_SOCKET        0x7fff
121 
122 extern struct list_head ipx_routes;
123 extern rwlock_t ipx_routes_lock;
124 
125 extern struct list_head ipx_interfaces;
126 struct ipx_interface *ipx_interfaces_head(void);
127 extern spinlock_t ipx_interfaces_lock;
128 
129 extern struct ipx_interface *ipx_primary_net;
130 
131 int ipx_proc_init(void);
132 void ipx_proc_exit(void);
133 
134 const char *ipx_frame_name(__be16);
135 const char *ipx_device_name(struct ipx_interface *intrfc);
136 
137 static __inline__ void ipxitf_hold(struct ipx_interface *intrfc)
138 {
139         refcount_inc(&intrfc->refcnt);
140 }
141 
142 void ipxitf_down(struct ipx_interface *intrfc);
143 struct ipx_interface *ipxitf_find_using_net(__be32 net);
144 int ipxitf_send(struct ipx_interface *intrfc, struct sk_buff *skb, char *node);
145 __be16 ipx_cksum(struct ipxhdr *packet, int length);
146 int ipxrtr_add_route(__be32 network, struct ipx_interface *intrfc,
147                      unsigned char *node);
148 void ipxrtr_del_routes(struct ipx_interface *intrfc);
149 int ipxrtr_route_packet(struct sock *sk, struct sockaddr_ipx *usipx,
150                         struct msghdr *msg, size_t len, int noblock);
151 int ipxrtr_route_skb(struct sk_buff *skb);
152 struct ipx_route *ipxrtr_lookup(__be32 net);
153 int ipxrtr_ioctl(unsigned int cmd, void __user *arg);
154 
155 static __inline__ void ipxitf_put(struct ipx_interface *intrfc)
156 {
157         if (refcount_dec_and_test(&intrfc->refcnt))
158                 ipxitf_down(intrfc);
159 }
160 
161 static __inline__ void ipxrtr_hold(struct ipx_route *rt)
162 {
163                 refcount_inc(&rt->refcnt);
164 }
165 
166 static __inline__ void ipxrtr_put(struct ipx_route *rt)
167 {
168                 if (refcount_dec_and_test(&rt->refcnt))
169                                         kfree(rt);
170 }
171 #endif /* _NET_INET_IPX_H_ */
172 

~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

kernel.org | git.kernel.org | LWN.net | Project Home | Wiki (Japanese) | Wiki (English) | SVN repository | Mail admin

Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.

osdn.jp