Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * IPX proc routines |
| 3 | * |
| 4 | * Copyright(C) Arnaldo Carvalho de Melo <acme@conectiva.com.br>, 2002 |
| 5 | */ |
| 6 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7 | #include <linux/init.h> |
| 8 | #ifdef CONFIG_PROC_FS |
| 9 | #include <linux/proc_fs.h> |
| 10 | #include <linux/spinlock.h> |
| 11 | #include <linux/seq_file.h> |
Arnaldo Carvalho de Melo | c752f07 | 2005-08-09 20:08:28 -0700 | [diff] [blame] | 12 | #include <net/tcp_states.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 13 | #include <net/ipx.h> |
| 14 | |
| 15 | static __inline__ struct ipx_interface *ipx_get_interface_idx(loff_t pos) |
| 16 | { |
| 17 | struct ipx_interface *i; |
| 18 | |
| 19 | list_for_each_entry(i, &ipx_interfaces, node) |
| 20 | if (!pos--) |
| 21 | goto out; |
| 22 | i = NULL; |
| 23 | out: |
| 24 | return i; |
| 25 | } |
| 26 | |
| 27 | static struct ipx_interface *ipx_interfaces_next(struct ipx_interface *i) |
| 28 | { |
| 29 | struct ipx_interface *rc = NULL; |
| 30 | |
| 31 | if (i->node.next != &ipx_interfaces) |
| 32 | rc = list_entry(i->node.next, struct ipx_interface, node); |
| 33 | return rc; |
| 34 | } |
| 35 | |
| 36 | static void *ipx_seq_interface_start(struct seq_file *seq, loff_t *pos) |
| 37 | { |
| 38 | loff_t l = *pos; |
| 39 | |
| 40 | spin_lock_bh(&ipx_interfaces_lock); |
| 41 | return l ? ipx_get_interface_idx(--l) : SEQ_START_TOKEN; |
| 42 | } |
| 43 | |
| 44 | static void *ipx_seq_interface_next(struct seq_file *seq, void *v, loff_t *pos) |
| 45 | { |
| 46 | struct ipx_interface *i; |
| 47 | |
| 48 | ++*pos; |
| 49 | if (v == SEQ_START_TOKEN) |
| 50 | i = ipx_interfaces_head(); |
| 51 | else |
| 52 | i = ipx_interfaces_next(v); |
| 53 | return i; |
| 54 | } |
| 55 | |
| 56 | static void ipx_seq_interface_stop(struct seq_file *seq, void *v) |
| 57 | { |
| 58 | spin_unlock_bh(&ipx_interfaces_lock); |
| 59 | } |
| 60 | |
| 61 | static int ipx_seq_interface_show(struct seq_file *seq, void *v) |
| 62 | { |
| 63 | struct ipx_interface *i; |
| 64 | |
| 65 | if (v == SEQ_START_TOKEN) { |
| 66 | seq_puts(seq, "Network Node_Address Primary Device " |
| 67 | "Frame_Type"); |
| 68 | #ifdef IPX_REFCNT_DEBUG |
| 69 | seq_puts(seq, " refcnt"); |
| 70 | #endif |
| 71 | seq_puts(seq, "\n"); |
| 72 | goto out; |
| 73 | } |
| 74 | |
| 75 | i = v; |
| 76 | seq_printf(seq, "%08lX ", (unsigned long int)ntohl(i->if_netnum)); |
| 77 | seq_printf(seq, "%02X%02X%02X%02X%02X%02X ", |
| 78 | i->if_node[0], i->if_node[1], i->if_node[2], |
| 79 | i->if_node[3], i->if_node[4], i->if_node[5]); |
| 80 | seq_printf(seq, "%-9s", i == ipx_primary_net ? "Yes" : "No"); |
| 81 | seq_printf(seq, "%-11s", ipx_device_name(i)); |
| 82 | seq_printf(seq, "%-9s", ipx_frame_name(i->if_dlink_type)); |
| 83 | #ifdef IPX_REFCNT_DEBUG |
| 84 | seq_printf(seq, "%6d", atomic_read(&i->refcnt)); |
| 85 | #endif |
| 86 | seq_puts(seq, "\n"); |
| 87 | out: |
| 88 | return 0; |
| 89 | } |
| 90 | |
| 91 | static struct ipx_route *ipx_routes_head(void) |
| 92 | { |
| 93 | struct ipx_route *rc = NULL; |
| 94 | |
| 95 | if (!list_empty(&ipx_routes)) |
| 96 | rc = list_entry(ipx_routes.next, struct ipx_route, node); |
| 97 | return rc; |
| 98 | } |
| 99 | |
| 100 | static struct ipx_route *ipx_routes_next(struct ipx_route *r) |
| 101 | { |
| 102 | struct ipx_route *rc = NULL; |
| 103 | |
| 104 | if (r->node.next != &ipx_routes) |
| 105 | rc = list_entry(r->node.next, struct ipx_route, node); |
| 106 | return rc; |
| 107 | } |
| 108 | |
| 109 | static __inline__ struct ipx_route *ipx_get_route_idx(loff_t pos) |
| 110 | { |
| 111 | struct ipx_route *r; |
| 112 | |
| 113 | list_for_each_entry(r, &ipx_routes, node) |
| 114 | if (!pos--) |
| 115 | goto out; |
| 116 | r = NULL; |
| 117 | out: |
| 118 | return r; |
| 119 | } |
| 120 | |
| 121 | static void *ipx_seq_route_start(struct seq_file *seq, loff_t *pos) |
| 122 | { |
| 123 | loff_t l = *pos; |
| 124 | read_lock_bh(&ipx_routes_lock); |
| 125 | return l ? ipx_get_route_idx(--l) : SEQ_START_TOKEN; |
| 126 | } |
| 127 | |
| 128 | static void *ipx_seq_route_next(struct seq_file *seq, void *v, loff_t *pos) |
| 129 | { |
| 130 | struct ipx_route *r; |
| 131 | |
| 132 | ++*pos; |
| 133 | if (v == SEQ_START_TOKEN) |
| 134 | r = ipx_routes_head(); |
| 135 | else |
| 136 | r = ipx_routes_next(v); |
| 137 | return r; |
| 138 | } |
| 139 | |
| 140 | static void ipx_seq_route_stop(struct seq_file *seq, void *v) |
| 141 | { |
| 142 | read_unlock_bh(&ipx_routes_lock); |
| 143 | } |
| 144 | |
| 145 | static int ipx_seq_route_show(struct seq_file *seq, void *v) |
| 146 | { |
| 147 | struct ipx_route *rt; |
| 148 | |
| 149 | if (v == SEQ_START_TOKEN) { |
| 150 | seq_puts(seq, "Network Router_Net Router_Node\n"); |
| 151 | goto out; |
| 152 | } |
| 153 | rt = v; |
| 154 | seq_printf(seq, "%08lX ", (unsigned long int)ntohl(rt->ir_net)); |
| 155 | if (rt->ir_routed) |
| 156 | seq_printf(seq, "%08lX %02X%02X%02X%02X%02X%02X\n", |
| 157 | (long unsigned int)ntohl(rt->ir_intrfc->if_netnum), |
| 158 | rt->ir_router_node[0], rt->ir_router_node[1], |
| 159 | rt->ir_router_node[2], rt->ir_router_node[3], |
| 160 | rt->ir_router_node[4], rt->ir_router_node[5]); |
| 161 | else |
| 162 | seq_puts(seq, "Directly Connected\n"); |
| 163 | out: |
| 164 | return 0; |
| 165 | } |
| 166 | |
| 167 | static __inline__ struct sock *ipx_get_socket_idx(loff_t pos) |
| 168 | { |
| 169 | struct sock *s = NULL; |
| 170 | struct hlist_node *node; |
| 171 | struct ipx_interface *i; |
| 172 | |
| 173 | list_for_each_entry(i, &ipx_interfaces, node) { |
| 174 | spin_lock_bh(&i->if_sklist_lock); |
| 175 | sk_for_each(s, node, &i->if_sklist) { |
| 176 | if (!pos) |
| 177 | break; |
| 178 | --pos; |
| 179 | } |
| 180 | spin_unlock_bh(&i->if_sklist_lock); |
| 181 | if (!pos) { |
| 182 | if (node) |
| 183 | goto found; |
| 184 | break; |
| 185 | } |
| 186 | } |
| 187 | s = NULL; |
| 188 | found: |
| 189 | return s; |
| 190 | } |
| 191 | |
| 192 | static void *ipx_seq_socket_start(struct seq_file *seq, loff_t *pos) |
| 193 | { |
| 194 | loff_t l = *pos; |
| 195 | |
| 196 | spin_lock_bh(&ipx_interfaces_lock); |
| 197 | return l ? ipx_get_socket_idx(--l) : SEQ_START_TOKEN; |
| 198 | } |
| 199 | |
| 200 | static void *ipx_seq_socket_next(struct seq_file *seq, void *v, loff_t *pos) |
| 201 | { |
| 202 | struct sock* sk, *next; |
| 203 | struct ipx_interface *i; |
| 204 | struct ipx_sock *ipxs; |
| 205 | |
| 206 | ++*pos; |
| 207 | if (v == SEQ_START_TOKEN) { |
| 208 | sk = NULL; |
| 209 | i = ipx_interfaces_head(); |
| 210 | if (!i) |
| 211 | goto out; |
| 212 | sk = sk_head(&i->if_sklist); |
| 213 | if (sk) |
| 214 | spin_lock_bh(&i->if_sklist_lock); |
| 215 | goto out; |
| 216 | } |
| 217 | sk = v; |
| 218 | next = sk_next(sk); |
| 219 | if (next) { |
| 220 | sk = next; |
| 221 | goto out; |
| 222 | } |
| 223 | ipxs = ipx_sk(sk); |
| 224 | i = ipxs->intrfc; |
| 225 | spin_unlock_bh(&i->if_sklist_lock); |
| 226 | sk = NULL; |
| 227 | for (;;) { |
| 228 | i = ipx_interfaces_next(i); |
| 229 | if (!i) |
| 230 | break; |
| 231 | spin_lock_bh(&i->if_sklist_lock); |
| 232 | if (!hlist_empty(&i->if_sklist)) { |
| 233 | sk = sk_head(&i->if_sklist); |
| 234 | break; |
| 235 | } |
| 236 | spin_unlock_bh(&i->if_sklist_lock); |
| 237 | } |
| 238 | out: |
| 239 | return sk; |
| 240 | } |
| 241 | |
| 242 | static int ipx_seq_socket_show(struct seq_file *seq, void *v) |
| 243 | { |
| 244 | struct sock *s; |
| 245 | struct ipx_sock *ipxs; |
| 246 | |
| 247 | if (v == SEQ_START_TOKEN) { |
| 248 | #ifdef CONFIG_IPX_INTERN |
| 249 | seq_puts(seq, "Local_Address " |
| 250 | "Remote_Address Tx_Queue " |
| 251 | "Rx_Queue State Uid\n"); |
| 252 | #else |
| 253 | seq_puts(seq, "Local_Address Remote_Address " |
| 254 | "Tx_Queue Rx_Queue State Uid\n"); |
| 255 | #endif |
| 256 | goto out; |
| 257 | } |
| 258 | |
| 259 | s = v; |
| 260 | ipxs = ipx_sk(s); |
| 261 | #ifdef CONFIG_IPX_INTERN |
| 262 | seq_printf(seq, "%08lX:%02X%02X%02X%02X%02X%02X:%04X ", |
Al Viro | 4833ed0 | 2006-11-03 00:27:06 -0800 | [diff] [blame] | 263 | (unsigned long)ntohl(ipxs->intrfc->if_netnum), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 264 | ipxs->node[0], ipxs->node[1], ipxs->node[2], ipxs->node[3], |
Al Viro | 4833ed0 | 2006-11-03 00:27:06 -0800 | [diff] [blame] | 265 | ipxs->node[4], ipxs->node[5], ntohs(ipxs->port)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 266 | #else |
Al Viro | 4833ed0 | 2006-11-03 00:27:06 -0800 | [diff] [blame] | 267 | seq_printf(seq, "%08lX:%04X ", (unsigned long) ntohl(ipxs->intrfc->if_netnum), |
| 268 | ntohs(ipxs->port)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 269 | #endif /* CONFIG_IPX_INTERN */ |
| 270 | if (s->sk_state != TCP_ESTABLISHED) |
| 271 | seq_printf(seq, "%-28s", "Not_Connected"); |
| 272 | else { |
| 273 | seq_printf(seq, "%08lX:%02X%02X%02X%02X%02X%02X:%04X ", |
Al Viro | 4833ed0 | 2006-11-03 00:27:06 -0800 | [diff] [blame] | 274 | (unsigned long)ntohl(ipxs->dest_addr.net), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 275 | ipxs->dest_addr.node[0], ipxs->dest_addr.node[1], |
| 276 | ipxs->dest_addr.node[2], ipxs->dest_addr.node[3], |
| 277 | ipxs->dest_addr.node[4], ipxs->dest_addr.node[5], |
Al Viro | 4833ed0 | 2006-11-03 00:27:06 -0800 | [diff] [blame] | 278 | ntohs(ipxs->dest_addr.sock)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 279 | } |
| 280 | |
| 281 | seq_printf(seq, "%08X %08X %02X %03d\n", |
| 282 | atomic_read(&s->sk_wmem_alloc), |
| 283 | atomic_read(&s->sk_rmem_alloc), |
| 284 | s->sk_state, SOCK_INODE(s->sk_socket)->i_uid); |
| 285 | out: |
| 286 | return 0; |
| 287 | } |
| 288 | |
| 289 | static struct seq_operations ipx_seq_interface_ops = { |
| 290 | .start = ipx_seq_interface_start, |
| 291 | .next = ipx_seq_interface_next, |
| 292 | .stop = ipx_seq_interface_stop, |
| 293 | .show = ipx_seq_interface_show, |
| 294 | }; |
| 295 | |
| 296 | static struct seq_operations ipx_seq_route_ops = { |
| 297 | .start = ipx_seq_route_start, |
| 298 | .next = ipx_seq_route_next, |
| 299 | .stop = ipx_seq_route_stop, |
| 300 | .show = ipx_seq_route_show, |
| 301 | }; |
| 302 | |
| 303 | static struct seq_operations ipx_seq_socket_ops = { |
| 304 | .start = ipx_seq_socket_start, |
| 305 | .next = ipx_seq_socket_next, |
| 306 | .stop = ipx_seq_interface_stop, |
| 307 | .show = ipx_seq_socket_show, |
| 308 | }; |
| 309 | |
| 310 | static int ipx_seq_route_open(struct inode *inode, struct file *file) |
| 311 | { |
| 312 | return seq_open(file, &ipx_seq_route_ops); |
| 313 | } |
| 314 | |
| 315 | static int ipx_seq_interface_open(struct inode *inode, struct file *file) |
| 316 | { |
| 317 | return seq_open(file, &ipx_seq_interface_ops); |
| 318 | } |
| 319 | |
| 320 | static int ipx_seq_socket_open(struct inode *inode, struct file *file) |
| 321 | { |
| 322 | return seq_open(file, &ipx_seq_socket_ops); |
| 323 | } |
| 324 | |
Arjan van de Ven | 9a32144 | 2007-02-12 00:55:35 -0800 | [diff] [blame] | 325 | static const struct file_operations ipx_seq_interface_fops = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 326 | .owner = THIS_MODULE, |
| 327 | .open = ipx_seq_interface_open, |
| 328 | .read = seq_read, |
| 329 | .llseek = seq_lseek, |
| 330 | .release = seq_release, |
| 331 | }; |
| 332 | |
Arjan van de Ven | 9a32144 | 2007-02-12 00:55:35 -0800 | [diff] [blame] | 333 | static const struct file_operations ipx_seq_route_fops = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 334 | .owner = THIS_MODULE, |
| 335 | .open = ipx_seq_route_open, |
| 336 | .read = seq_read, |
| 337 | .llseek = seq_lseek, |
| 338 | .release = seq_release, |
| 339 | }; |
| 340 | |
Arjan van de Ven | 9a32144 | 2007-02-12 00:55:35 -0800 | [diff] [blame] | 341 | static const struct file_operations ipx_seq_socket_fops = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 342 | .owner = THIS_MODULE, |
| 343 | .open = ipx_seq_socket_open, |
| 344 | .read = seq_read, |
| 345 | .llseek = seq_lseek, |
| 346 | .release = seq_release, |
| 347 | }; |
| 348 | |
| 349 | static struct proc_dir_entry *ipx_proc_dir; |
| 350 | |
| 351 | int __init ipx_proc_init(void) |
| 352 | { |
| 353 | struct proc_dir_entry *p; |
| 354 | int rc = -ENOMEM; |
YOSHIFUJI Hideaki | 981c0ff | 2007-02-09 23:24:51 +0900 | [diff] [blame] | 355 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 356 | ipx_proc_dir = proc_mkdir("ipx", proc_net); |
| 357 | |
| 358 | if (!ipx_proc_dir) |
| 359 | goto out; |
| 360 | p = create_proc_entry("interface", S_IRUGO, ipx_proc_dir); |
| 361 | if (!p) |
| 362 | goto out_interface; |
| 363 | |
| 364 | p->proc_fops = &ipx_seq_interface_fops; |
| 365 | p = create_proc_entry("route", S_IRUGO, ipx_proc_dir); |
| 366 | if (!p) |
| 367 | goto out_route; |
| 368 | |
| 369 | p->proc_fops = &ipx_seq_route_fops; |
| 370 | p = create_proc_entry("socket", S_IRUGO, ipx_proc_dir); |
| 371 | if (!p) |
| 372 | goto out_socket; |
| 373 | |
| 374 | p->proc_fops = &ipx_seq_socket_fops; |
| 375 | |
| 376 | rc = 0; |
| 377 | out: |
| 378 | return rc; |
| 379 | out_socket: |
| 380 | remove_proc_entry("route", ipx_proc_dir); |
| 381 | out_route: |
| 382 | remove_proc_entry("interface", ipx_proc_dir); |
| 383 | out_interface: |
| 384 | remove_proc_entry("ipx", proc_net); |
| 385 | goto out; |
| 386 | } |
| 387 | |
| 388 | void __exit ipx_proc_exit(void) |
| 389 | { |
| 390 | remove_proc_entry("interface", ipx_proc_dir); |
| 391 | remove_proc_entry("route", ipx_proc_dir); |
| 392 | remove_proc_entry("socket", ipx_proc_dir); |
| 393 | remove_proc_entry("ipx", proc_net); |
| 394 | } |
| 395 | |
| 396 | #else /* CONFIG_PROC_FS */ |
| 397 | |
| 398 | int __init ipx_proc_init(void) |
| 399 | { |
| 400 | return 0; |
| 401 | } |
| 402 | |
| 403 | void __exit ipx_proc_exit(void) |
| 404 | { |
| 405 | } |
| 406 | |
| 407 | #endif /* CONFIG_PROC_FS */ |