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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /net/appletalk/atalk_proc.c
downloadlinux-2.6.38-lt-ux500-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.gz
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'net/appletalk/atalk_proc.c')
-rw-r--r--net/appletalk/atalk_proc.c321
1 files changed, 321 insertions, 0 deletions
diff --git a/net/appletalk/atalk_proc.c b/net/appletalk/atalk_proc.c
new file mode 100644
index 00000000000..dc4048dd98c
--- /dev/null
+++ b/net/appletalk/atalk_proc.c
@@ -0,0 +1,321 @@
+/*
+ * atalk_proc.c - proc support for Appletalk
+ *
+ * Copyright(c) Arnaldo Carvalho de Melo <acme@conectiva.com.br>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, version 2.
+ */
+
+#include <linux/config.h>
+#include <linux/init.h>
+#include <linux/proc_fs.h>
+#include <linux/seq_file.h>
+#include <net/sock.h>
+#include <linux/atalk.h>
+
+
+static __inline__ struct atalk_iface *atalk_get_interface_idx(loff_t pos)
+{
+ struct atalk_iface *i;
+
+ for (i = atalk_interfaces; pos && i; i = i->next)
+ --pos;
+
+ return i;
+}
+
+static void *atalk_seq_interface_start(struct seq_file *seq, loff_t *pos)
+{
+ loff_t l = *pos;
+
+ read_lock_bh(&atalk_interfaces_lock);
+ return l ? atalk_get_interface_idx(--l) : SEQ_START_TOKEN;
+}
+
+static void *atalk_seq_interface_next(struct seq_file *seq, void *v, loff_t *pos)
+{
+ struct atalk_iface *i;
+
+ ++*pos;
+ if (v == SEQ_START_TOKEN) {
+ i = NULL;
+ if (atalk_interfaces)
+ i = atalk_interfaces;
+ goto out;
+ }
+ i = v;
+ i = i->next;
+out:
+ return i;
+}
+
+static void atalk_seq_interface_stop(struct seq_file *seq, void *v)
+{
+ read_unlock_bh(&atalk_interfaces_lock);
+}
+
+static int atalk_seq_interface_show(struct seq_file *seq, void *v)
+{
+ struct atalk_iface *iface;
+
+ if (v == SEQ_START_TOKEN) {
+ seq_puts(seq, "Interface Address Networks "
+ "Status\n");
+ goto out;
+ }
+
+ iface = v;
+ seq_printf(seq, "%-16s %04X:%02X %04X-%04X %d\n",
+ iface->dev->name, ntohs(iface->address.s_net),
+ iface->address.s_node, ntohs(iface->nets.nr_firstnet),
+ ntohs(iface->nets.nr_lastnet), iface->status);
+out:
+ return 0;
+}
+
+static __inline__ struct atalk_route *atalk_get_route_idx(loff_t pos)
+{
+ struct atalk_route *r;
+
+ for (r = atalk_routes; pos && r; r = r->next)
+ --pos;
+
+ return r;
+}
+
+static void *atalk_seq_route_start(struct seq_file *seq, loff_t *pos)
+{
+ loff_t l = *pos;
+
+ read_lock_bh(&atalk_routes_lock);
+ return l ? atalk_get_route_idx(--l) : SEQ_START_TOKEN;
+}
+
+static void *atalk_seq_route_next(struct seq_file *seq, void *v, loff_t *pos)
+{
+ struct atalk_route *r;
+
+ ++*pos;
+ if (v == SEQ_START_TOKEN) {
+ r = NULL;
+ if (atalk_routes)
+ r = atalk_routes;
+ goto out;
+ }
+ r = v;
+ r = r->next;
+out:
+ return r;
+}
+
+static void atalk_seq_route_stop(struct seq_file *seq, void *v)
+{
+ read_unlock_bh(&atalk_routes_lock);
+}
+
+static int atalk_seq_route_show(struct seq_file *seq, void *v)
+{
+ struct atalk_route *rt;
+
+ if (v == SEQ_START_TOKEN) {
+ seq_puts(seq, "Target Router Flags Dev\n");
+ goto out;
+ }
+
+ if (atrtr_default.dev) {
+ rt = &atrtr_default;
+ seq_printf(seq, "Default %04X:%02X %-4d %s\n",
+ ntohs(rt->gateway.s_net), rt->gateway.s_node,
+ rt->flags, rt->dev->name);
+ }
+
+ rt = v;
+ seq_printf(seq, "%04X:%02X %04X:%02X %-4d %s\n",
+ ntohs(rt->target.s_net), rt->target.s_node,
+ ntohs(rt->gateway.s_net), rt->gateway.s_node,
+ rt->flags, rt->dev->name);
+out:
+ return 0;
+}
+
+static __inline__ struct sock *atalk_get_socket_idx(loff_t pos)
+{
+ struct sock *s;
+ struct hlist_node *node;
+
+ sk_for_each(s, node, &atalk_sockets)
+ if (!pos--)
+ goto found;
+ s = NULL;
+found:
+ return s;
+}
+
+static void *atalk_seq_socket_start(struct seq_file *seq, loff_t *pos)
+{
+ loff_t l = *pos;
+
+ read_lock_bh(&atalk_sockets_lock);
+ return l ? atalk_get_socket_idx(--l) : SEQ_START_TOKEN;
+}
+
+static void *atalk_seq_socket_next(struct seq_file *seq, void *v, loff_t *pos)
+{
+ struct sock *i;
+
+ ++*pos;
+ if (v == SEQ_START_TOKEN) {
+ i = sk_head(&atalk_sockets);
+ goto out;
+ }
+ i = sk_next(v);
+out:
+ return i;
+}
+
+static void atalk_seq_socket_stop(struct seq_file *seq, void *v)
+{
+ read_unlock_bh(&atalk_sockets_lock);
+}
+
+static int atalk_seq_socket_show(struct seq_file *seq, void *v)
+{
+ struct sock *s;
+ struct atalk_sock *at;
+
+ if (v == SEQ_START_TOKEN) {
+ seq_printf(seq, "Type Local_addr Remote_addr Tx_queue "
+ "Rx_queue St UID\n");
+ goto out;
+ }
+
+ s = v;
+ at = at_sk(s);
+
+ seq_printf(seq, "%02X %04X:%02X:%02X %04X:%02X:%02X %08X:%08X "
+ "%02X %d\n",
+ s->sk_type, ntohs(at->src_net), at->src_node, at->src_port,
+ ntohs(at->dest_net), at->dest_node, at->dest_port,
+ 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 atalk_seq_interface_ops = {
+ .start = atalk_seq_interface_start,
+ .next = atalk_seq_interface_next,
+ .stop = atalk_seq_interface_stop,
+ .show = atalk_seq_interface_show,
+};
+
+static struct seq_operations atalk_seq_route_ops = {
+ .start = atalk_seq_route_start,
+ .next = atalk_seq_route_next,
+ .stop = atalk_seq_route_stop,
+ .show = atalk_seq_route_show,
+};
+
+static struct seq_operations atalk_seq_socket_ops = {
+ .start = atalk_seq_socket_start,
+ .next = atalk_seq_socket_next,
+ .stop = atalk_seq_socket_stop,
+ .show = atalk_seq_socket_show,
+};
+
+static int atalk_seq_interface_open(struct inode *inode, struct file *file)
+{
+ return seq_open(file, &atalk_seq_interface_ops);
+}
+
+static int atalk_seq_route_open(struct inode *inode, struct file *file)
+{
+ return seq_open(file, &atalk_seq_route_ops);
+}
+
+static int atalk_seq_socket_open(struct inode *inode, struct file *file)
+{
+ return seq_open(file, &atalk_seq_socket_ops);
+}
+
+static struct file_operations atalk_seq_interface_fops = {
+ .owner = THIS_MODULE,
+ .open = atalk_seq_interface_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = seq_release,
+};
+
+static struct file_operations atalk_seq_route_fops = {
+ .owner = THIS_MODULE,
+ .open = atalk_seq_route_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = seq_release,
+};
+
+static struct file_operations atalk_seq_socket_fops = {
+ .owner = THIS_MODULE,
+ .open = atalk_seq_socket_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = seq_release,
+};
+
+static struct proc_dir_entry *atalk_proc_dir;
+
+int __init atalk_proc_init(void)
+{
+ struct proc_dir_entry *p;
+ int rc = -ENOMEM;
+
+ atalk_proc_dir = proc_mkdir("atalk", proc_net);
+ if (!atalk_proc_dir)
+ goto out;
+ atalk_proc_dir->owner = THIS_MODULE;
+
+ p = create_proc_entry("interface", S_IRUGO, atalk_proc_dir);
+ if (!p)
+ goto out_interface;
+ p->proc_fops = &atalk_seq_interface_fops;
+
+ p = create_proc_entry("route", S_IRUGO, atalk_proc_dir);
+ if (!p)
+ goto out_route;
+ p->proc_fops = &atalk_seq_route_fops;
+
+ p = create_proc_entry("socket", S_IRUGO, atalk_proc_dir);
+ if (!p)
+ goto out_socket;
+ p->proc_fops = &atalk_seq_socket_fops;
+
+ p = create_proc_entry("arp", S_IRUGO, atalk_proc_dir);
+ if (!p)
+ goto out_arp;
+ p->proc_fops = &atalk_seq_arp_fops;
+
+ rc = 0;
+out:
+ return rc;
+out_arp:
+ remove_proc_entry("socket", atalk_proc_dir);
+out_socket:
+ remove_proc_entry("route", atalk_proc_dir);
+out_route:
+ remove_proc_entry("interface", atalk_proc_dir);
+out_interface:
+ remove_proc_entry("atalk", proc_net);
+ goto out;
+}
+
+void __exit atalk_proc_exit(void)
+{
+ remove_proc_entry("interface", atalk_proc_dir);
+ remove_proc_entry("route", atalk_proc_dir);
+ remove_proc_entry("socket", atalk_proc_dir);
+ remove_proc_entry("arp", atalk_proc_dir);
+ remove_proc_entry("atalk", proc_net);
+}