Changes-for-displaying-proc-files-related-output

Makefile

@@ -33,6 +33,7 @@ $(obj)/ksmbd_spnego_negtokentarg.asn1.o: $(obj)/ksmbd_spnego_negtokentarg.asn1.c
 
 ksmbd-$(CONFIG_SMB_INSECURE_SERVER) += smb1pdu.o smb1ops.o smb1misc.o netmisc.o
 ksmbd-$(CONFIG_SMB_SERVER_SMBDIRECT) += transport_rdma.o
+ksmbd-$(CONFIG_PROC_FS) += proc.o
 else
 # For external module build
 EXTRA_FLAGS += -I$(PWD)

connection.c

@@ -17,6 +17,7 @@
 #include "connection.h"
 #include "transport_tcp.h"
 #include "transport_rdma.h"
+#include "misc.h"
 
 static DEFINE_MUTEX(init_lock);
 
@@ -25,6 +26,58 @@ static struct ksmbd_conn_ops default_conn_ops;
 DEFINE_HASHTABLE(conn_list, CONN_HASH_BITS);
 DECLARE_RWSEM(conn_list_lock);
 
+#ifdef CONFIG_PROC_FS
+struct proc_dir_entry *proc_clients;
+
+static int proc_show_clients(struct seq_file *m, void *v)
+{
+	struct ksmbd_conn *conn;
+	struct timespec64 now, t;
+	int i;
+
+	seq_puts(m, "#<name> <dialect> <credits> <open files> <requests> <last active>\n");
+
+	down_read(&conn_list_lock);
+	hash_for_each(conn_list, i, conn, hlist) {
+		jiffies_to_timespec64(jiffies - conn->last_active, &t);
+		ktime_get_real_ts64(&now);
+		t = timespec64_sub(now, t);
+		if (conn->inet_addr)
+			seq_printf(m, "%pI4", &conn->inet_addr);
+		else
+			seq_printf(m, "%pI6", &conn->inet6_addr);
+		seq_printf(m, " 0x%03x %u %d %d %ptT\n",
+			   conn->dialect,
+			   conn->total_credits,
+			   atomic_read(&conn->stats.open_files_count),
+			   atomic_read(&conn->req_running),
+			   &t);
+	}
+	up_read(&conn_list_lock);
+	return 0;
+}
+
+static int create_proc_clients(void)
+{
+	proc_clients = ksmbd_proc_create("clients",
+					 proc_show_clients, NULL);
+	if (!proc_clients)
+		return -ENOMEM;
+	return 0;
+}
+
+static void delete_proc_clients(void)
+{
+	if (proc_clients) {
+		proc_remove(proc_clients);
+		proc_clients = NULL;
+	}
+}
+#else
+static int create_proc_clients(void) { return 0; }
+static void delete_proc_clients(void) {}
+#endif
+
 /**
  * ksmbd_conn_free() - free resources of the connection instance
  *
@@ -523,6 +576,7 @@ int ksmbd_conn_transport_init(void)
 	}
 out:
 	mutex_unlock(&init_lock);
+	create_proc_clients();
 	return ret;
 }
 
@@ -553,6 +607,7 @@ static void stop_sessions(void)
 
 void ksmbd_conn_transport_destroy(void)
 {
+	delete_proc_clients();
 	mutex_lock(&init_lock);
 	ksmbd_tcp_destroy();
 	ksmbd_rdma_stop_listening();

connection.h

@@ -7,6 +7,7 @@
 #define __KSMBD_CONNECTION_H__
 
 #include <linux/list.h>
+#include <linux/inet.h>
 #include <linux/ip.h>
 #include <net/sock.h>
 #include <net/tcp.h>
@@ -31,7 +32,7 @@ enum {
 	KSMBD_SESS_RELEASING
 };
 
-struct ksmbd_stats {
+struct ksmbd_conn_stats {
 	atomic_t			open_files_count;
 	atomic64_t			request_served;
 };
@@ -76,7 +77,7 @@ struct ksmbd_conn {
 	struct list_head		requests;
 	struct list_head		async_requests;
 	int				connection_type;
-	struct ksmbd_stats		stats;
+	struct ksmbd_conn_stats		stats;
 	char				ClientGUID[SMB2_CLIENT_GUID_SIZE];
 	struct ntlmssp_auth		ntlmssp;
 

mgmt/tree_connect.c

@@ -9,6 +9,7 @@
 
 #include "../transport_ipc.h"
 #include "../connection.h"
+#include "../stats.h"
 
 #include "tree_connect.h"
 #include "user_config.h"
@@ -85,6 +86,7 @@ ksmbd_tree_conn_connect(struct ksmbd_work *work, const char *share_name)
 		status.ret = -ENOMEM;
 		goto out_error;
 	}
+	ksmbd_counter_inc(KSMBD_COUNTER_TREE_CONNS);
 	kvfree(resp);
 	return status;
 
@@ -115,6 +117,7 @@ int ksmbd_tree_conn_disconnect(struct ksmbd_session *sess,
 	ret = ksmbd_ipc_tree_disconnect_request(sess->id, tree_conn->id);
 	ksmbd_release_tree_conn_id(sess, tree_conn->id);
 	ksmbd_share_config_put(tree_conn->share_conf);
+	ksmbd_counter_dec(KSMBD_COUNTER_TREE_CONNS);
 	if (atomic_dec_and_test(&tree_conn->refcount))
 		kfree(tree_conn);
 	return ret;

mgmt/user_config.c

@@ -90,11 +90,9 @@ void ksmbd_free_user(struct ksmbd_user *user)
 	kfree(user);
 }
 
-int ksmbd_anonymous_user(struct ksmbd_user *user)
+bool ksmbd_anonymous_user(struct ksmbd_user *user)
 {
-	if (user->name[0] == '\0')
-		return 1;
-	return 0;
+	return user->name[0] == '\0';
 }
 
 bool ksmbd_compare_user(struct ksmbd_user *u1, struct ksmbd_user *u2)

mgmt/user_config.h

@@ -65,6 +65,6 @@ struct ksmbd_user *ksmbd_login_user(const char *account);
 struct ksmbd_user *ksmbd_alloc_user(struct ksmbd_login_response *resp,
 		struct ksmbd_login_response_ext *resp_ext);
 void ksmbd_free_user(struct ksmbd_user *user);
-int ksmbd_anonymous_user(struct ksmbd_user *user);
+bool ksmbd_anonymous_user(struct ksmbd_user *user);
 bool ksmbd_compare_user(struct ksmbd_user *u1, struct ksmbd_user *u2);
 #endif /* __USER_CONFIG_MANAGEMENT_H__ */