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Diffstat (limited to 'net/bluetooth/af_bluetooth.c')
-rw-r--r--net/bluetooth/af_bluetooth.c139
1 files changed, 139 insertions, 0 deletions
diff --git a/net/bluetooth/af_bluetooth.c b/net/bluetooth/af_bluetooth.c
index f7db5792ec6..9d49ee6d721 100644
--- a/net/bluetooth/af_bluetooth.c
+++ b/net/bluetooth/af_bluetooth.c
@@ -28,6 +28,7 @@
#include <asm/ioctls.h>
#include <net/bluetooth/bluetooth.h>
+#include <linux/proc_fs.h>
#define VERSION "2.16"
@@ -532,6 +533,144 @@ int bt_sock_wait_state(struct sock *sk, int state, unsigned long timeo)
}
EXPORT_SYMBOL(bt_sock_wait_state);
+#ifdef CONFIG_PROC_FS
+struct bt_seq_state {
+ struct bt_sock_list *l;
+};
+
+static void *bt_seq_start(struct seq_file *seq, loff_t *pos)
+ __acquires(seq->private->l->lock)
+{
+ struct bt_seq_state *s = seq->private;
+ struct bt_sock_list *l = s->l;
+
+ read_lock(&l->lock);
+ return seq_hlist_start_head(&l->head, *pos);
+}
+
+static void *bt_seq_next(struct seq_file *seq, void *v, loff_t *pos)
+{
+ struct bt_seq_state *s = seq->private;
+ struct bt_sock_list *l = s->l;
+
+ return seq_hlist_next(v, &l->head, pos);
+}
+
+static void bt_seq_stop(struct seq_file *seq, void *v)
+ __releases(seq->private->l->lock)
+{
+ struct bt_seq_state *s = seq->private;
+ struct bt_sock_list *l = s->l;
+
+ read_unlock(&l->lock);
+}
+
+static int bt_seq_show(struct seq_file *seq, void *v)
+{
+ struct bt_seq_state *s = seq->private;
+ struct bt_sock_list *l = s->l;
+ bdaddr_t src_baswapped, dst_baswapped;
+
+ if (v == SEQ_START_TOKEN) {
+ seq_puts(seq ,"sk RefCnt Rmem Wmem User Inode Src Dst Parent");
+
+ if (l->custom_seq_show) {
+ seq_putc(seq, ' ');
+ l->custom_seq_show(seq, v);
+ }
+
+ seq_putc(seq, '\n');
+ } else {
+ struct sock *sk = sk_entry(v);
+ struct bt_sock *bt = bt_sk(sk);
+ baswap(&src_baswapped, &bt->src);
+ baswap(&dst_baswapped, &bt->dst);
+
+ seq_printf(seq, "%pK %-6d %-6u %-6u %-6u %-6lu %pM %pM %-6lu",
+ sk,
+ atomic_read(&sk->sk_refcnt),
+ sk_rmem_alloc_get(sk),
+ sk_wmem_alloc_get(sk),
+ sock_i_uid(sk),
+ sock_i_ino(sk),
+ &src_baswapped,
+ &dst_baswapped,
+ bt->parent? sock_i_ino(bt->parent): 0LU);
+
+ if (l->custom_seq_show) {
+ seq_putc(seq, ' ');
+ l->custom_seq_show(seq, v);
+ }
+
+ seq_putc(seq, '\n');
+ }
+ return 0;
+}
+
+static struct seq_operations bt_seq_ops = {
+ .start = bt_seq_start,
+ .next = bt_seq_next,
+ .stop = bt_seq_stop,
+ .show = bt_seq_show,
+};
+
+static int bt_seq_open(struct inode *inode, struct file *file)
+{
+ struct bt_sock_list *sk_list;
+ struct bt_seq_state *s;
+
+ sk_list = PDE(inode)->data;
+ s = __seq_open_private(file, &bt_seq_ops,
+ sizeof(struct bt_seq_state));
+ if (!s)
+ return -ENOMEM;
+
+ s->l = sk_list;
+ return 0;
+}
+
+int bt_procfs_init(struct module* module, struct net *net, const char *name,
+ struct bt_sock_list* sk_list,
+ int (* seq_show)(struct seq_file *, void *))
+{
+ struct proc_dir_entry * pde;
+
+ sk_list->custom_seq_show = seq_show;
+
+ sk_list->fops.owner = module;
+ sk_list->fops.open = bt_seq_open;
+ sk_list->fops.read = seq_read;
+ sk_list->fops.llseek = seq_lseek;
+ sk_list->fops.release = seq_release_private;
+
+ pde = proc_net_fops_create(net, name, 0, &sk_list->fops);
+ if (!pde)
+ return -ENOMEM;
+
+ pde->data = sk_list;
+
+ return 0;
+}
+
+void bt_procfs_cleanup(struct net *net, const char *name)
+{
+ proc_net_remove(net, name);
+}
+#else
+int bt_procfs_init(struct module* module, struct net *net, const char *name,
+ struct bt_sock_list* sk_list,
+ int (* seq_show)(struct seq_file *, void *))
+{
+ return 0;
+}
+
+void bt_procfs_cleanup(struct net *net, const char *name)
+{
+}
+#endif
+EXPORT_SYMBOL(bt_procfs_init);
+EXPORT_SYMBOL(bt_procfs_cleanup);
+
static struct net_proto_family bt_sock_family_ops = {
.owner = THIS_MODULE,
.family = PF_BLUETOOTH,