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