Linux-libre 4.8.2-gnupck-4.8.2-gnu

1 files changed, 25 insertions, 215 deletions

diff --git a/net/batman-adv/debugfs.c b/net/batman-adv/debugfs.c
index 952900466..1d68b6e63 100644
--- a/net/batman-adv/debugfs.c
+++ b/net/batman-adv/debugfs.c
@@ -18,245 +18,33 @@
 #include "debugfs.h"
 #include "main.h"
 
-#include <linux/compiler.h>
 #include <linux/debugfs.h>
 #include <linux/device.h>
 #include <linux/errno.h>
 #include <linux/export.h>
-#include <linux/fcntl.h>
 #include <linux/fs.h>
-#include <linux/jiffies.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
 #include <linux/netdevice.h>
-#include <linux/poll.h>
 #include <linux/printk.h>
 #include <linux/sched.h> /* for linux/wait.h */
 #include <linux/seq_file.h>
-#include <linux/slab.h>
-#include <linux/spinlock.h>
 #include <linux/stat.h>
 #include <linux/stddef.h>
 #include <linux/stringify.h>
 #include <linux/sysfs.h>
-#include <linux/types.h>
-#include <linux/uaccess.h>
-#include <linux/wait.h>
-#include <stdarg.h>
 
+#include "bat_algo.h"
 #include "bridge_loop_avoidance.h"
 #include "distributed-arp-table.h"
 #include "gateway_client.h"
 #include "icmp_socket.h"
+#include "log.h"
+#include "multicast.h"
 #include "network-coding.h"
 #include "originator.h"
 #include "translation-table.h"
 
 static struct dentry *batadv_debugfs;
 
-#ifdef CONFIG_BATMAN_ADV_DEBUG
-#define BATADV_LOG_BUFF_MASK (batadv_log_buff_len - 1)
-
-static const int batadv_log_buff_len = BATADV_LOG_BUF_LEN;
-
-static char *batadv_log_char_addr(struct batadv_priv_debug_log *debug_log,
-				  size_t idx)
-{
-	return &debug_log->log_buff[idx & BATADV_LOG_BUFF_MASK];
-}
-
-static void batadv_emit_log_char(struct batadv_priv_debug_log *debug_log,
-				 char c)
-{
-	char *char_addr;
-
-	char_addr = batadv_log_char_addr(debug_log, debug_log->log_end);
-	*char_addr = c;
-	debug_log->log_end++;
-
-	if (debug_log->log_end - debug_log->log_start > batadv_log_buff_len)
-		debug_log->log_start = debug_log->log_end - batadv_log_buff_len;
-}
-
-__printf(2, 3)
-static int batadv_fdebug_log(struct batadv_priv_debug_log *debug_log,
-			     const char *fmt, ...)
-{
-	va_list args;
-	static char debug_log_buf[256];
-	char *p;
-
-	if (!debug_log)
-		return 0;
-
-	spin_lock_bh(&debug_log->lock);
-	va_start(args, fmt);
-	vscnprintf(debug_log_buf, sizeof(debug_log_buf), fmt, args);
-	va_end(args);
-
-	for (p = debug_log_buf; *p != 0; p++)
-		batadv_emit_log_char(debug_log, *p);
-
-	spin_unlock_bh(&debug_log->lock);
-
-	wake_up(&debug_log->queue_wait);
-
-	return 0;
-}
-
-int batadv_debug_log(struct batadv_priv *bat_priv, const char *fmt, ...)
-{
-	va_list args;
-	char tmp_log_buf[256];
-
-	va_start(args, fmt);
-	vscnprintf(tmp_log_buf, sizeof(tmp_log_buf), fmt, args);
-	batadv_fdebug_log(bat_priv->debug_log, "[%10u] %s",
-			  jiffies_to_msecs(jiffies), tmp_log_buf);
-	va_end(args);
-
-	return 0;
-}
-
-static int batadv_log_open(struct inode *inode, struct file *file)
-{
-	if (!try_module_get(THIS_MODULE))
-		return -EBUSY;
-
-	nonseekable_open(inode, file);
-	file->private_data = inode->i_private;
-	return 0;
-}
-
-static int batadv_log_release(struct inode *inode, struct file *file)
-{
-	module_put(THIS_MODULE);
-	return 0;
-}
-
-static bool batadv_log_empty(struct batadv_priv_debug_log *debug_log)
-{
-	return !(debug_log->log_start - debug_log->log_end);
-}
-
-static ssize_t batadv_log_read(struct file *file, char __user *buf,
-			       size_t count, loff_t *ppos)
-{
-	struct batadv_priv *bat_priv = file->private_data;
-	struct batadv_priv_debug_log *debug_log = bat_priv->debug_log;
-	int error, i = 0;
-	char *char_addr;
-	char c;
-
-	if ((file->f_flags & O_NONBLOCK) && batadv_log_empty(debug_log))
-		return -EAGAIN;
-
-	if (!buf)
-		return -EINVAL;
-
-	if (count == 0)
-		return 0;
-
-	if (!access_ok(VERIFY_WRITE, buf, count))
-		return -EFAULT;
-
-	error = wait_event_interruptible(debug_log->queue_wait,
-					 (!batadv_log_empty(debug_log)));
-
-	if (error)
-		return error;
-
-	spin_lock_bh(&debug_log->lock);
-
-	while ((!error) && (i < count) &&
-	       (debug_log->log_start != debug_log->log_end)) {
-		char_addr = batadv_log_char_addr(debug_log,
-						 debug_log->log_start);
-		c = *char_addr;
-
-		debug_log->log_start++;
-
-		spin_unlock_bh(&debug_log->lock);
-
-		error = __put_user(c, buf);
-
-		spin_lock_bh(&debug_log->lock);
-
-		buf++;
-		i++;
-	}
-
-	spin_unlock_bh(&debug_log->lock);
-
-	if (!error)
-		return i;
-
-	return error;
-}
-
-static unsigned int batadv_log_poll(struct file *file, poll_table *wait)
-{
-	struct batadv_priv *bat_priv = file->private_data;
-	struct batadv_priv_debug_log *debug_log = bat_priv->debug_log;
-
-	poll_wait(file, &debug_log->queue_wait, wait);
-
-	if (!batadv_log_empty(debug_log))
-		return POLLIN | POLLRDNORM;
-
-	return 0;
-}
-
-static const struct file_operations batadv_log_fops = {
-	.open           = batadv_log_open,
-	.release        = batadv_log_release,
-	.read           = batadv_log_read,
-	.poll           = batadv_log_poll,
-	.llseek         = no_llseek,
-};
-
-static int batadv_debug_log_setup(struct batadv_priv *bat_priv)
-{
-	struct dentry *d;
-
-	if (!bat_priv->debug_dir)
-		goto err;
-
-	bat_priv->debug_log = kzalloc(sizeof(*bat_priv->debug_log), GFP_ATOMIC);
-	if (!bat_priv->debug_log)
-		goto err;
-
-	spin_lock_init(&bat_priv->debug_log->lock);
-	init_waitqueue_head(&bat_priv->debug_log->queue_wait);
-
-	d = debugfs_create_file("log", S_IFREG | S_IRUSR,
-				bat_priv->debug_dir, bat_priv,
-				&batadv_log_fops);
-	if (!d)
-		goto err;
-
-	return 0;
-
-err:
-	return -ENOMEM;
-}
-
-static void batadv_debug_log_cleanup(struct batadv_priv *bat_priv)
-{
-	kfree(bat_priv->debug_log);
-	bat_priv->debug_log = NULL;
-}
-#else /* CONFIG_BATMAN_ADV_DEBUG */
-static int batadv_debug_log_setup(struct batadv_priv *bat_priv)
-{
-	return 0;
-}
-
-static void batadv_debug_log_cleanup(struct batadv_priv *bat_priv)
-{
-}
-#endif
-
 static int batadv_algorithms_open(struct inode *inode, struct file *file)
 {
 	return single_open(file, batadv_algo_seq_print_text, NULL);
@@ -363,6 +151,22 @@ static int batadv_nc_nodes_open(struct inode *inode, struct file *file)
 }
 #endif
 
+#ifdef CONFIG_BATMAN_ADV_MCAST
+/**
+ * batadv_mcast_flags_open - prepare file handler for reads from mcast_flags
+ * @inode: inode which was opened
+ * @file: file handle to be initialized
+ *
+ * Return: 0 on success or negative error number in case of failure
+ */
+static int batadv_mcast_flags_open(struct inode *inode, struct file *file)
+{
+	struct net_device *net_dev = (struct net_device *)inode->i_private;
+
+	return single_open(file, batadv_mcast_flags_seq_print_text, net_dev);
+}
+#endif
+
 #define BATADV_DEBUGINFO(_name, _mode, _open)		\
 struct batadv_debuginfo batadv_debuginfo_##_name = {	\
 	.attr = {					\
@@ -407,6 +211,9 @@ static BATADV_DEBUGINFO(transtable_local, S_IRUGO,
 #ifdef CONFIG_BATMAN_ADV_NC
 static BATADV_DEBUGINFO(nc_nodes, S_IRUGO, batadv_nc_nodes_open);
 #endif
+#ifdef CONFIG_BATMAN_ADV_MCAST
+static BATADV_DEBUGINFO(mcast_flags, S_IRUGO, batadv_mcast_flags_open);
+#endif
 
 static struct batadv_debuginfo *batadv_mesh_debuginfos[] = {
 	&batadv_debuginfo_neighbors,
@@ -424,6 +231,9 @@ static struct batadv_debuginfo *batadv_mesh_debuginfos[] = {
 #ifdef CONFIG_BATMAN_ADV_NC
 	&batadv_debuginfo_nc_nodes,
 #endif
+#ifdef CONFIG_BATMAN_ADV_MCAST
+	&batadv_debuginfo_mcast_flags,
+#endif
 	NULL,
 };