1 files changed, 173 insertions, 33 deletions

diff --git a/net/batman-adv/debugfs.c b/net/batman-adv/debugfs.c
index 391d4fb2026..a12e25efaf6 100644
--- a/net/batman-adv/debugfs.c
+++ b/net/batman-adv/debugfs.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2010-2012 B.A.T.M.A.N. contributors:
+/* Copyright (C) 2010-2014 B.A.T.M.A.N. contributors:
  *
  * Marek Lindner
  *
@@ -12,9 +12,7 @@
  * General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
  */
 
 #include "main.h"
@@ -28,9 +26,10 @@
 #include "gateway_common.h"
 #include "gateway_client.h"
 #include "soft-interface.h"
-#include "vis.h"
 #include "icmp_socket.h"
 #include "bridge_loop_avoidance.h"
+#include "distributed-arp-table.h"
+#include "network-coding.h"
 
 static struct dentry *batadv_debugfs;
 
@@ -39,13 +38,14 @@ static struct dentry *batadv_debugfs;
 
 static const int batadv_log_buff_len = BATADV_LOG_BUF_LEN;
 
-static char *batadv_log_char_addr(struct batadv_debug_log *debug_log,
+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_debug_log *debug_log, char c)
+static void batadv_emit_log_char(struct batadv_priv_debug_log *debug_log,
+				 char c)
 {
 	char *char_addr;
 
@@ -58,7 +58,7 @@ static void batadv_emit_log_char(struct batadv_debug_log *debug_log, char c)
 }
 
 __printf(2, 3)
-static int batadv_fdebug_log(struct batadv_debug_log *debug_log,
+static int batadv_fdebug_log(struct batadv_priv_debug_log *debug_log,
 			     const char *fmt, ...)
 {
 	va_list args;
@@ -99,19 +99,21 @@ int batadv_debug_log(struct batadv_priv *bat_priv, const char *fmt, ...)
 
 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;
-	batadv_inc_module_count();
 	return 0;
 }
 
 static int batadv_log_release(struct inode *inode, struct file *file)
 {
-	batadv_dec_module_count();
+	module_put(THIS_MODULE);
 	return 0;
 }
 
-static int batadv_log_empty(struct batadv_debug_log *debug_log)
+static int batadv_log_empty(struct batadv_priv_debug_log *debug_log)
 {
 	return !(debug_log->log_start - debug_log->log_end);
 }
@@ -120,7 +122,7 @@ 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_debug_log *debug_log = bat_priv->debug_log;
+	struct batadv_priv_debug_log *debug_log = bat_priv->debug_log;
 	int error, i = 0;
 	char *char_addr;
 	char c;
@@ -161,7 +163,6 @@ static ssize_t batadv_log_read(struct file *file, char __user *buf,
 
 		buf++;
 		i++;
-
 	}
 
 	spin_unlock_bh(&debug_log->lock);
@@ -175,7 +176,7 @@ static ssize_t batadv_log_read(struct file *file, char __user *buf,
 static unsigned int batadv_log_poll(struct file *file, poll_table *wait)
 {
 	struct batadv_priv *bat_priv = file->private_data;
-	struct batadv_debug_log *debug_log = bat_priv->debug_log;
+	struct batadv_priv_debug_log *debug_log = bat_priv->debug_log;
 
 	poll_wait(file, &debug_log->queue_wait, wait);
 
@@ -227,7 +228,6 @@ static void batadv_debug_log_cleanup(struct batadv_priv *bat_priv)
 #else /* CONFIG_BATMAN_ADV_DEBUG */
 static int batadv_debug_log_setup(struct batadv_priv *bat_priv)
 {
-	bat_priv->debug_log = NULL;
 	return 0;
 }
 
@@ -245,18 +245,35 @@ static int batadv_algorithms_open(struct inode *inode, struct file *file)
 static int batadv_originators_open(struct inode *inode, struct file *file)
 {
 	struct net_device *net_dev = (struct net_device *)inode->i_private;
+
 	return single_open(file, batadv_orig_seq_print_text, net_dev);
 }
 
+/**
+ * batadv_originators_hardif_open - handles debugfs output for the
+ *  originator table of an hard interface
+ * @inode: inode pointer to debugfs file
+ * @file: pointer to the seq_file
+ */
+static int batadv_originators_hardif_open(struct inode *inode,
+					  struct file *file)
+{
+	struct net_device *net_dev = (struct net_device *)inode->i_private;
+
+	return single_open(file, batadv_orig_hardif_seq_print_text, net_dev);
+}
+
 static int batadv_gateways_open(struct inode *inode, struct file *file)
 {
 	struct net_device *net_dev = (struct net_device *)inode->i_private;
+
 	return single_open(file, batadv_gw_client_seq_print_text, net_dev);
 }
 
 static int batadv_transtable_global_open(struct inode *inode, struct file *file)
 {
 	struct net_device *net_dev = (struct net_device *)inode->i_private;
+
 	return single_open(file, batadv_tt_global_seq_print_text, net_dev);
 }
 
@@ -264,6 +281,7 @@ static int batadv_transtable_global_open(struct inode *inode, struct file *file)
 static int batadv_bla_claim_table_open(struct inode *inode, struct file *file)
 {
 	struct net_device *net_dev = (struct net_device *)inode->i_private;
+
 	return single_open(file, batadv_bla_claim_table_seq_print_text,
 			   net_dev);
 }
@@ -272,22 +290,32 @@ static int batadv_bla_backbone_table_open(struct inode *inode,
 					  struct file *file)
 {
 	struct net_device *net_dev = (struct net_device *)inode->i_private;
+
 	return single_open(file, batadv_bla_backbone_table_seq_print_text,
 			   net_dev);
 }
 
 #endif
 
-static int batadv_transtable_local_open(struct inode *inode, struct file *file)
+#ifdef CONFIG_BATMAN_ADV_DAT
+/**
+ * batadv_dat_cache_open - Prepare file handler for reads from dat_chache
+ * @inode: inode which was opened
+ * @file: file handle to be initialized
+ */
+static int batadv_dat_cache_open(struct inode *inode, struct file *file)
 {
 	struct net_device *net_dev = (struct net_device *)inode->i_private;
-	return single_open(file, batadv_tt_local_seq_print_text, net_dev);
+
+	return single_open(file, batadv_dat_cache_seq_print_text, net_dev);
 }
+#endif
 
-static int batadv_vis_data_open(struct inode *inode, struct file *file)
+static int batadv_transtable_local_open(struct inode *inode, struct file *file)
 {
 	struct net_device *net_dev = (struct net_device *)inode->i_private;
-	return single_open(file, batadv_vis_seq_print_text, net_dev);
+
+	return single_open(file, batadv_tt_local_seq_print_text, net_dev);
 }
 
 struct batadv_debuginfo {
@@ -295,6 +323,15 @@ struct batadv_debuginfo {
 	const struct file_operations fops;
 };
 
+#ifdef CONFIG_BATMAN_ADV_NC
+static int batadv_nc_nodes_open(struct inode *inode, struct file *file)
+{
+	struct net_device *net_dev = (struct net_device *)inode->i_private;
+
+	return single_open(file, batadv_nc_nodes_seq_print_text, net_dev);
+}
+#endif
+
 #define BATADV_DEBUGINFO(_name, _mode, _open)		\
 struct batadv_debuginfo batadv_debuginfo_##_name = {	\
 	.attr = { .name = __stringify(_name),		\
@@ -305,9 +342,19 @@ struct batadv_debuginfo batadv_debuginfo_##_name = {	\
 		  .llseek = seq_lseek,			\
 		  .release = single_release,		\
 		}					\
-};
+}
 
+/* the following attributes are general and therefore they will be directly
+ * placed in the BATADV_DEBUGFS_SUBDIR subdirectory of debugfs
+ */
 static BATADV_DEBUGINFO(routing_algos, S_IRUGO, batadv_algorithms_open);
+
+static struct batadv_debuginfo *batadv_general_debuginfos[] = {
+	&batadv_debuginfo_routing_algos,
+	NULL,
+};
+
+/* The following attributes are per soft interface */
 static BATADV_DEBUGINFO(originators, S_IRUGO, batadv_originators_open);
 static BATADV_DEBUGINFO(gateways, S_IRUGO, batadv_gateways_open);
 static BATADV_DEBUGINFO(transtable_global, S_IRUGO,
@@ -317,9 +364,14 @@ static BATADV_DEBUGINFO(bla_claim_table, S_IRUGO, batadv_bla_claim_table_open);
 static BATADV_DEBUGINFO(bla_backbone_table, S_IRUGO,
 			batadv_bla_backbone_table_open);
 #endif
+#ifdef CONFIG_BATMAN_ADV_DAT
+static BATADV_DEBUGINFO(dat_cache, S_IRUGO, batadv_dat_cache_open);
+#endif
 static BATADV_DEBUGINFO(transtable_local, S_IRUGO,
 			batadv_transtable_local_open);
-static BATADV_DEBUGINFO(vis_data, S_IRUGO, batadv_vis_data_open);
+#ifdef CONFIG_BATMAN_ADV_NC
+static BATADV_DEBUGINFO(nc_nodes, S_IRUGO, batadv_nc_nodes_open);
+#endif
 
 static struct batadv_debuginfo *batadv_mesh_debuginfos[] = {
 	&batadv_debuginfo_originators,
@@ -329,14 +381,41 @@ static struct batadv_debuginfo *batadv_mesh_debuginfos[] = {
 	&batadv_debuginfo_bla_claim_table,
 	&batadv_debuginfo_bla_backbone_table,
 #endif
+#ifdef CONFIG_BATMAN_ADV_DAT
+	&batadv_debuginfo_dat_cache,
+#endif
 	&batadv_debuginfo_transtable_local,
-	&batadv_debuginfo_vis_data,
+#ifdef CONFIG_BATMAN_ADV_NC
+	&batadv_debuginfo_nc_nodes,
+#endif
+	NULL,
+};
+
+#define BATADV_HARDIF_DEBUGINFO(_name, _mode, _open)		\
+struct batadv_debuginfo batadv_hardif_debuginfo_##_name = {	\
+	.attr = {						\
+		.name = __stringify(_name),			\
+		.mode = _mode,					\
+	},							\
+	.fops = {						\
+		.owner = THIS_MODULE,				\
+		.open = _open,					\
+		.read	= seq_read,				\
+		.llseek = seq_lseek,				\
+		.release = single_release,			\
+	},							\
+}
+static BATADV_HARDIF_DEBUGINFO(originators, S_IRUGO,
+			       batadv_originators_hardif_open);
+
+static struct batadv_debuginfo *batadv_hardif_debuginfos[] = {
+	&batadv_hardif_debuginfo_originators,
 	NULL,
 };
 
 void batadv_debugfs_init(void)
 {
-	struct batadv_debuginfo *bat_debug;
+	struct batadv_debuginfo **bat_debug;
 	struct dentry *file;
 
 	batadv_debugfs = debugfs_create_dir(BATADV_DEBUGFS_SUBDIR, NULL);
@@ -344,24 +423,82 @@ void batadv_debugfs_init(void)
 		batadv_debugfs = NULL;
 
 	if (!batadv_debugfs)
-		goto out;
+		goto err;
 
-	bat_debug = &batadv_debuginfo_routing_algos;
-	file = debugfs_create_file(bat_debug->attr.name,
-				   S_IFREG | bat_debug->attr.mode,
-				   batadv_debugfs, NULL, &bat_debug->fops);
-	if (!file)
-		pr_err("Can't add debugfs file: %s\n", bat_debug->attr.name);
+	for (bat_debug = batadv_general_debuginfos; *bat_debug; ++bat_debug) {
+		file = debugfs_create_file(((*bat_debug)->attr).name,
+					   S_IFREG | ((*bat_debug)->attr).mode,
+					   batadv_debugfs, NULL,
+					   &(*bat_debug)->fops);
+		if (!file) {
+			pr_err("Can't add general debugfs file: %s\n",
+			       ((*bat_debug)->attr).name);
+			goto err;
+		}
+	}
 
-out:
 	return;
+err:
+	debugfs_remove_recursive(batadv_debugfs);
+	batadv_debugfs = NULL;
 }
 
 void batadv_debugfs_destroy(void)
 {
+	debugfs_remove_recursive(batadv_debugfs);
+	batadv_debugfs = NULL;
+}
+
+/**
+ * batadv_debugfs_add_hardif - creates the base directory for a hard interface
+ *  in debugfs.
+ * @hard_iface: hard interface which should be added.
+ */
+int batadv_debugfs_add_hardif(struct batadv_hard_iface *hard_iface)
+{
+	struct batadv_debuginfo **bat_debug;
+	struct dentry *file;
+
+	if (!batadv_debugfs)
+		goto out;
+
+	hard_iface->debug_dir = debugfs_create_dir(hard_iface->net_dev->name,
+						   batadv_debugfs);
+	if (!hard_iface->debug_dir)
+		goto out;
+
+	for (bat_debug = batadv_hardif_debuginfos; *bat_debug; ++bat_debug) {
+		file = debugfs_create_file(((*bat_debug)->attr).name,
+					   S_IFREG | ((*bat_debug)->attr).mode,
+					   hard_iface->debug_dir,
+					   hard_iface->net_dev,
+					   &(*bat_debug)->fops);
+		if (!file)
+			goto rem_attr;
+	}
+
+	return 0;
+rem_attr:
+	debugfs_remove_recursive(hard_iface->debug_dir);
+	hard_iface->debug_dir = NULL;
+out:
+#ifdef CONFIG_DEBUG_FS
+	return -ENOMEM;
+#else
+	return 0;
+#endif /* CONFIG_DEBUG_FS */
+}
+
+/**
+ * batadv_debugfs_del_hardif - delete the base directory for a hard interface
+ *  in debugfs.
+ * @hard_iface: hard interface which is deleted.
+ */
+void batadv_debugfs_del_hardif(struct batadv_hard_iface *hard_iface)
+{
 	if (batadv_debugfs) {
-		debugfs_remove_recursive(batadv_debugfs);
-		batadv_debugfs = NULL;
+		debugfs_remove_recursive(hard_iface->debug_dir);
+		hard_iface->debug_dir = NULL;
 	}
 }
 
@@ -396,6 +533,9 @@ int batadv_debugfs_add_meshif(struct net_device *dev)
 		}
 	}
 
+	if (batadv_nc_init_debugfs(bat_priv) < 0)
+		goto rem_attr;
+
 	return 0;
 rem_attr:
 	debugfs_remove_recursive(bat_priv->debug_dir);