/* * IPX proc routines * * Copyright(C) Arnaldo Carvalho de Melo <acme@conectiva.com.br>, 2002 */ #include <linux/config.h> #include <linux/init.h> #ifdef CONFIG_PROC_FS #include <linux/proc_fs.h> #include <linux/spinlock.h> #include <linux/seq_file.h> #include <linux/tcp.h> #include <net/ipx.h> static __inline__ struct ipx_interface *ipx_get_interface_idx(loff_t pos) { struct ipx_interface *i; list_for_each_entry(i, &ipx_interfaces, node) if (!pos--) goto out; i = NULL; out: return i; } static struct ipx_interface *ipx_interfaces_next(struct ipx_interface *i) { struct ipx_interface *rc = NULL; if (i->node.next != &ipx_interfaces) rc = list_entry(i->node.next, struct ipx_interface, node); return rc; } static void *ipx_seq_interface_start(struct seq_file *seq, loff_t *pos) { loff_t l = *pos; spin_lock_bh(&ipx_interfaces_lock); return l ? ipx_get_interface_idx(--l) : SEQ_START_TOKEN; } static void *ipx_seq_interface_next(struct seq_file *seq, void *v, loff_t *pos) { struct ipx_interface *i; ++*pos; if (v == SEQ_START_TOKEN) i = ipx_interfaces_head(); else i = ipx_interfaces_next(v); return i; } static void ipx_seq_interface_stop(struct seq_file *seq, void *v) { spin_unlock_bh(&ipx_interfaces_lock); } static int ipx_seq_interface_show(struct seq_file *seq, void *v) { struct ipx_interface *i; if (v == SEQ_START_TOKEN) { seq_puts(seq, "Network Node_Address Primary Device " "Frame_Type"); #ifdef IPX_REFCNT_DEBUG seq_puts(seq, " refcnt"); #endif seq_puts(seq, "\n"); goto out; } i = v; seq_printf(seq, "%08lX ", (unsigned long int)ntohl(i->if_netnum)); seq_printf(seq, "%02X%02X%02X%02X%02X%02X ", i->if_node[0], i->if_node[1], i->if_node[2], i->if_node[3], i->if_node[4], i->if_node[5]); seq_printf(seq, "%-9s", i == ipx_primary_net ? "Yes" : "No"); seq_printf(seq, "%-11s", ipx_device_name(i)); seq_printf(seq, "%-9s", ipx_frame_name(i->if_dlink_type)); #ifdef IPX_REFCNT_DEBUG seq_printf(seq, "%6d", atomic_read(&i->refcnt)); #endif seq_puts(seq, "\n"); out: return 0; } static struct ipx_route *ipx_routes_head(void) { struct ipx_route *rc = NULL; if (!list_empty(&ipx_routes)) rc = list_entry(ipx_routes.next, struct ipx_route, node); return rc; } static struct ipx_route *ipx_routes_next(struct ipx_route *r) { struct ipx_route *rc = NULL; if (r->node.next != &ipx_routes) rc = list_entry(r->node.next, struct ipx_route, node); return rc; } static __inline__ struct ipx_route *ipx_get_route_idx(loff_t pos) { struct ipx_route *r; list_for_each_entry(r, &ipx_routes, node) if (!pos--) goto out; r = NULL; out: return r; } static void *ipx_seq_route_start(struct seq_file *seq, loff_t *pos) { loff_t l = *pos; read_lock_bh(&ipx_routes_lock); return l ? ipx_get_route_idx(--l) : SEQ_START_TOKEN; } static void *ipx_seq_route_next(struct seq_file *seq, void *v, loff_t *pos) { struct ipx_route *r; ++*pos; if (v == SEQ_START_TOKEN) r = ipx_routes_head(); else r = ipx_routes_next(v); return r; } static void ipx_seq_route_stop(struct seq_file *seq, void *v) { read_unlock_bh(&ipx_routes_lock); } static int ipx_seq_route_show(struct seq_file *seq, void *v) { struct ipx_route *rt; if (v == SEQ_START_TOKEN) { seq_puts(seq, "Network Router_Net Router_Node\n"); goto out; } rt = v; seq_printf(seq, "%08lX ", (unsigned long int)ntohl(rt->ir_net)); if (rt->ir_routed) seq_printf(seq, "%08lX %02X%02X%02X%02X%02X%02X\n", (long unsigned int)ntohl(rt->ir_intrfc->if_netnum), rt->ir_router_node[0], rt->ir_router_node[1], rt->ir_router_node[2], rt->ir_router_node[3], rt->ir_router_node[4], rt->ir_router_node[5]); else seq_puts(seq, "Directly Connected\n"); out: return 0; } static __inline__ struct sock *ipx_get_socket_idx(loff_t pos) { struct sock *s = NULL; struct hlist_node *node; struct ipx_interface *i; list_for_each_entry(i, &ipx_interfaces, node) { spin_lock_bh(&i->if_sklist_lock); sk_for_each(s, node, &i->if_sklist) { if (!pos) break; --pos; } spin_unlock_bh(&i->if_sklist_lock); if (!pos) { if (node) goto found; break; } } s = NULL; found: return s; } static void *ipx_seq_socket_start(struct seq_file *seq, loff_t *pos) { loff_t l = *pos; spin_lock_bh(&ipx_interfaces_lock); return l ? ipx_get_socket_idx(--l) : SEQ_START_TOKEN; } static void *ipx_seq_socket_next(struct seq_file *seq, void *v, loff_t *pos) { struct sock* sk, *next; struct ipx_interface *i; struct ipx_sock *ipxs; ++*pos; if (v == SEQ_START_TOKEN) { sk = NULL; i = ipx_interfaces_head(); if (!i) goto out; sk = sk_head(&i->if_sklist); if (sk) spin_lock_bh(&i->if_sklist_lock); goto out; } sk = v; next = sk_next(sk); if (next) { sk = next; goto out; } ipxs = ipx_sk(sk); i = ipxs->intrfc; spin_unlock_bh(&i->if_sklist_lock); sk = NULL; for (;;) { i = ipx_interfaces_next(i); if (!i) break; spin_lock_bh(&i->if_sklist_lock); if (!hlist_empty(&i->if_sklist)) { sk = sk_head(&i->if_sklist); break; } spin_unlock_bh(&i->if_sklist_lock); } out: return sk; } static int ipx_seq_socket_show(struct seq_file *seq, void *v) { struct sock *s; struct ipx_sock *ipxs; if (v == SEQ_START_TOKEN) { #ifdef CONFIG_IPX_INTERN seq_puts(seq, "Local_Address " "Remote_Address Tx_Queue " "Rx_Queue State Uid\n"); #else seq_puts(seq, "Local_Address Remote_Address " "Tx_Queue Rx_Queue State Uid\n"); #endif goto out; } s = v; ipxs = ipx_sk(s); #ifdef CONFIG_IPX_INTERN seq_printf(seq, "%08lX:%02X%02X%02X%02X%02X%02X:%04X ", (unsigned long)htonl(ipxs->intrfc->if_netnum), ipxs->node[0], ipxs->node[1], ipxs->node[2], ipxs->node[3], ipxs->node[4], ipxs->node[5], htons(ipxs->port)); #else seq_printf(seq, "%08lX:%04X ", (unsigned long) htonl(ipxs->intrfc->if_netnum), htons(ipxs->port)); #endif /* CONFIG_IPX_INTERN */ if (s->sk_state != TCP_ESTABLISHED) seq_printf(seq, "%-28s", "Not_Connected"); else { seq_printf(seq, "%08lX:%02X%02X%02X%02X%02X%02X:%04X ", (unsigned long)htonl(ipxs->dest_addr.net), ipxs->dest_addr.node[0], ipxs->dest_addr.node[1], ipxs->dest_addr.node[2], ipxs->dest_addr.node[3], ipxs->dest_addr.node[4], ipxs->dest_addr.node[5], htons(ipxs->dest_addr.sock)); } seq_printf(seq, "%08X %08X %02X %03d\n", atomic_read(&s->sk_wmem_alloc), atomic_read(&s->sk_rmem_alloc), s->sk_state, SOCK_INODE(s->sk_socket)->i_uid); out: return 0; } static struct seq_operations ipx_seq_interface_ops = { .start = ipx_seq_interface_start, .next = ipx_seq_interface_next, .stop = ipx_seq_interface_stop, .show = ipx_seq_interface_show, }; static struct seq_operations ipx_seq_route_ops = { .start = ipx_seq_route_start, .next = ipx_seq_route_next, .stop = ipx_seq_route_stop, .show = ipx_seq_route_show, }; static struct seq_operations ipx_seq_socket_ops = { .start = ipx_seq_socket_start, .next = ipx_seq_socket_next, .stop = ipx_seq_interface_stop, .show = ipx_seq_socket_show, }; static int ipx_seq_route_open(struct inode *inode, struct file *file) { return seq_open(file, &ipx_seq_route_ops); } static int ipx_seq_interface_open(struct inode *inode, struct file *file) { return seq_open(file, &ipx_seq_interface_ops); } static int ipx_seq_socket_open(struct inode *inode, struct file *file) { return seq_open(file, &ipx_seq_socket_ops); } static struct file_operations ipx_seq_interface_fops = { .owner = THIS_MODULE, .open = ipx_seq_interface_open, .read = seq_read, .llseek = seq_lseek, .release = seq_release, }; static struct file_operations ipx_seq_route_fops = { .owner = THIS_MODULE, .open = ipx_seq_route_open, .read = seq_read, .llseek = seq_lseek, .release = seq_release, }; static struct file_operations ipx_seq_socket_fops = { .owner = THIS_MODULE, .open = ipx_seq_socket_open, .read = seq_read, .llseek = seq_lseek, .release = seq_release, }; static struct proc_dir_entry *ipx_proc_dir; int __init ipx_proc_init(void) { struct proc_dir_entry *p; int rc = -ENOMEM; ipx_proc_dir = proc_mkdir("ipx", proc_net); if (!ipx_proc_dir) goto out; p = create_proc_entry("interface", S_IRUGO, ipx_proc_dir); if (!p) goto out_interface; p->proc_fops = &ipx_seq_interface_fops; p = create_proc_entry("route", S_IRUGO, ipx_proc_dir); if (!p) goto out_route; p->proc_fops = &ipx_seq_route_fops; p = create_proc_entry("socket", S_IRUGO, ipx_proc_dir); if (!p) goto out_socket; p->proc_fops = &ipx_seq_socket_fops; rc = 0; out: return rc; out_socket: remove_proc_entry("route", ipx_proc_dir); out_route: remove_proc_entry("interface", ipx_proc_dir); out_interface: remove_proc_entry("ipx", proc_net); goto out; } void __exit ipx_proc_exit(void) { remove_proc_entry("interface", ipx_proc_dir); remove_proc_entry("route", ipx_proc_dir); remove_proc_entry("socket", ipx_proc_dir); remove_proc_entry("ipx", proc_net); } #else /* CONFIG_PROC_FS */ int __init ipx_proc_init(void) { return 0; } void __exit ipx_proc_exit(void) { } #endif /* CONFIG_PROC_FS */