r21324: Add linux setlease to the vfs layer. Next round, as Volker points out,

it should be abstracted a little higher up so other os'es can have an
entry, but it will take a bit more work.  Thanks to Chetan Shringarpure
and Mathias Dietz.

I didn't increment the vfs number again because the kernel change notify
stuff hasn't been released yet anyway.

source/include/smbprofile.h

@@ -168,6 +168,10 @@ enum profile_stats_values
 #define syscall_kernel_flock_count __profile_stats_value(PR_VALUE_SYSCALL_KERNEL_FLOCK, count)
 #define syscall_kernel_flock_time __profile_stats_value(PR_VALUE_SYSCALL_KERNEL_FLOCK, time)
 
+	PR_VALUE_SYSCALL_LINUX_SETLEASE,
+#define syscall_linux_setlease_count __profile_stats_value(PR_VALUE_SYSCALL_LINUX_SETLEASE, count)
+#define syscall_linux_setlease_time __profile_stats_value(PR_VALUE_SYSCALL_LINUX_SETLEASE, time)
+
 	PR_VALUE_SYSCALL_FCNTL_GETLOCK,
 #define syscall_fcntl_getlock_count __profile_stats_value(PR_VALUE_SYSCALL_FCNTL_GETLOCK, count)
 #define syscall_fcntl_getlock_time __profile_stats_value(PR_VALUE_SYSCALL_FCNTL_GETLOCK, time)

source/include/vfs.h

@@ -65,7 +65,8 @@
 /* Changed to version 17 as we removed redundant connection_struct parameters. --jpeach */
 /* Changed to version 18 to add fsp parameter to the open call -- jpeach 
    Also include kernel_flock call - jmcd */
-/* Changed to version 19, kernel change notify has been merged */
+/* Changed to version 19, kernel change notify has been merged 
+   Also included linux setlease call - jmcd */
 #define SMB_VFS_INTERFACE_VERSION 19
 
 
@@ -147,6 +148,7 @@ typedef enum _vfs_op_type {
 	SMB_VFS_OP_FTRUNCATE,
 	SMB_VFS_OP_LOCK,
 	SMB_VFS_OP_KERNEL_FLOCK,
+	SMB_VFS_OP_LINUX_SETLEASE,
 	SMB_VFS_OP_GETLOCK,
 	SMB_VFS_OP_SYMLINK,
 	SMB_VFS_OP_READLINK,
@@ -271,6 +273,7 @@ struct vfs_ops {
 		int (*ftruncate)(struct vfs_handle_struct *handle, struct files_struct *fsp, int fd, SMB_OFF_T offset);
 		BOOL (*lock)(struct vfs_handle_struct *handle, struct files_struct *fsp, int fd, int op, SMB_OFF_T offset, SMB_OFF_T count, int type);
 		int (*kernel_flock)(struct vfs_handle_struct *handle, struct files_struct *fsp, int fd, uint32 share_mode);
+		int (*linux_setlease)(struct vfs_handle_struct *handle, struct files_struct *fsp, int fd, int leasetype);
 		BOOL (*getlock)(struct vfs_handle_struct *handle, struct files_struct *fsp, int fd, SMB_OFF_T *poffset, SMB_OFF_T *pcount, int *ptype, pid_t *ppid);
 		int (*symlink)(struct vfs_handle_struct *handle, const char *oldpath, const char *newpath);
 		int (*readlink)(struct vfs_handle_struct *handle, const char *path, char *buf, size_t bufsiz);
@@ -393,6 +396,7 @@ struct vfs_ops {
 		struct vfs_handle_struct *ftruncate;
 		struct vfs_handle_struct *lock;
 		struct vfs_handle_struct *kernel_flock;
+		struct vfs_handle_struct *linux_setlease;
 		struct vfs_handle_struct *getlock;
 		struct vfs_handle_struct *symlink;
 		struct vfs_handle_struct *readlink;

source/include/vfs_macros.h

@@ -71,6 +71,7 @@
 #define SMB_VFS_FTRUNCATE(fsp, fd, offset) ((fsp)->conn->vfs.ops.ftruncate((fsp)->conn->vfs.handles.ftruncate, (fsp), (fd), (offset)))
 #define SMB_VFS_LOCK(fsp, fd, op, offset, count, type) ((fsp)->conn->vfs.ops.lock((fsp)->conn->vfs.handles.lock, (fsp), (fd) ,(op), (offset), (count), (type)))
 #define SMB_VFS_KERNEL_FLOCK(fsp, fd, share_mode) ((fsp)->conn->vfs.ops.kernel_flock((fsp)->conn->vfs.handles.kernel_flock, (fsp), (fd), (share_mode)))
+#define SMB_VFS_LINUX_SETLEASE(fsp, fd, leasetype) ((fsp)->conn->vfs.ops.linux_setlease((fsp)->conn->vfs.handles.linux_setlease, (fsp), (fd), (leasetype)))
 #define SMB_VFS_GETLOCK(fsp, fd, poffset, pcount, ptype, ppid) ((fsp)->conn->vfs.ops.getlock((fsp)->conn->vfs.handles.getlock, (fsp), (fd) ,(poffset), (pcount), (ptype), (ppid)))
 #define SMB_VFS_SYMLINK(conn, oldpath, newpath) ((conn)->vfs.ops.symlink((conn)->vfs.handles.symlink, (oldpath), (newpath)))
 #define SMB_VFS_READLINK(conn, path, buf, bufsiz) ((conn)->vfs.ops.readlink((conn)->vfs.handles.readlink, (path), (buf), (bufsiz)))
@@ -185,6 +186,7 @@
 #define SMB_VFS_OPAQUE_FTRUNCATE(fsp, fd, offset) ((fsp)->conn->vfs_opaque.ops.ftruncate((fsp)->conn->vfs_opaque.handles.ftruncate, (fsp), (fd), (offset)))
 #define SMB_VFS_OPAQUE_LOCK(fsp, fd, op, offset, count, type) ((fsp)->conn->vfs_opaque.ops.lock((fsp)->conn->vfs_opaque.handles.lock, (fsp), (fd) ,(op), (offset), (count), (type)))
 #define SMB_VFS_OPAQUE_FLOCK(fsp, fd, share_mode) ((fsp)->conn->vfs_opaque.ops.lock((fsp)->conn->vfs_opaque.handles.kernel_flock, (fsp), (fd), (share_mode)))
+#define SMB_VFS_OPAQUE_LINUX_SETLEASE(fsp, fd, leasetype) ((fsp)->conn->vfs_opaque.ops.linux_setlease((fsp)->conn->vfs_opaque.handles.linux_setlease, (fsp), (fd), (leasetype)))
 #define SMB_VFS_OPAQUE_GETLOCK(fsp, fd, poffset, pcount, ptype, ppid) ((fsp)->conn->vfs_opaque.ops.getlock((fsp)->conn->vfs_opaque.handles.getlock, (fsp), (fd), (poffset), (pcount), (ptype), (ppid)))
 #define SMB_VFS_OPAQUE_SYMLINK(conn, oldpath, newpath) ((conn)->vfs_opaque.ops.symlink((conn)->vfs_opaque.handles.symlink, (oldpath), (newpath)))
 #define SMB_VFS_OPAQUE_READLINK(conn, path, buf, bufsiz) ((conn)->vfs_opaque.ops.readlink((conn)->vfs_opaque.handles.readlink, (path), (buf), (bufsiz)))
@@ -300,6 +302,7 @@
 #define SMB_VFS_NEXT_FTRUNCATE(handle, fsp, fd, offset) ((handle)->vfs_next.ops.ftruncate((handle)->vfs_next.handles.ftruncate, (fsp), (fd), (offset)))
 #define SMB_VFS_NEXT_LOCK(handle, fsp, fd, op, offset, count, type) ((handle)->vfs_next.ops.lock((handle)->vfs_next.handles.lock, (fsp), (fd) ,(op), (offset), (count), (type)))
 #define SMB_VFS_NEXT_KERNEL_FLOCK(handle, fsp, fd, share_mode)((handle)->vfs_next.ops.kernel_flock((handle)->vfs_next.handles.kernel_flock, (fsp), (fd), (share_mode)))
+#define SMB_VFS_NEXT_LINUX_SETLEASE(handle, fsp, fd, leasetype)((handle)->vfs_next.ops.linux_setlease((handle)->vfs_next.handles.linux_setlease, (fsp), (fd), (leasetype)))
 #define SMB_VFS_NEXT_GETLOCK(handle, fsp, fd, poffset, pcount, ptype, ppid) ((handle)->vfs_next.ops.getlock((handle)->vfs_next.handles.getlock, (fsp), (fd), (poffset), (pcount), (ptype), (ppid)))
 #define SMB_VFS_NEXT_SYMLINK(handle, oldpath, newpath) ((handle)->vfs_next.ops.symlink((handle)->vfs_next.handles.symlink, (oldpath), (newpath)))
 #define SMB_VFS_NEXT_READLINK(handle, path, buf, bufsiz) ((handle)->vfs_next.ops.readlink((handle)->vfs_next.handles.readlink, (path), (buf), (bufsiz)))

source/modules/vfs_default.c

@@ -783,6 +783,23 @@ static BOOL vfswrap_getlock(vfs_handle_struct *handle, files_struct *fsp, int fd
 	return result;
 }
 
+static int vfswrap_linux_setlease(vfs_handle_struct *handle, files_struct *fsp, int fd,
+				int leasetype)
+{
+	int result;
+
+	START_PROFILE(syscall_linux_setlease);
+
+	/* first set the signal handler */
+	if(linux_set_lease_sighandler(fd) == -1)
+		return -1;
+
+	result = linux_setlease(fd, leasetype);
+	
+	END_PROFILE(syscall_linux_setlease);
+	return result;
+}
+
 static int vfswrap_symlink(vfs_handle_struct *handle,  const char *oldpath, const char *newpath)
 {
 	int result;
@@ -1227,6 +1244,8 @@ static vfs_op_tuple vfs_default_ops[] = {
 	 SMB_VFS_LAYER_OPAQUE},
 	{SMB_VFS_OP(vfswrap_kernel_flock),	SMB_VFS_OP_KERNEL_FLOCK,
 	 SMB_VFS_LAYER_OPAQUE},
+	{SMB_VFS_OP(vfswrap_linux_setlease),	SMB_VFS_OP_LINUX_SETLEASE,
+	 SMB_VFS_LAYER_OPAQUE},
 	{SMB_VFS_OP(vfswrap_getlock),	SMB_VFS_OP_GETLOCK,
 	 SMB_VFS_LAYER_OPAQUE},
 	{SMB_VFS_OP(vfswrap_symlink),	SMB_VFS_OP_SYMLINK,

source/modules/vfs_full_audit.c

@@ -160,6 +160,8 @@ static BOOL smb_full_audit_lock(vfs_handle_struct *handle, files_struct *fsp, in
 static int smb_full_audit_kernel_flock(struct vfs_handle_struct *handle,
 				       struct files_struct *fsp, int fd,
 				       uint32 share_mode);
+static int smb_full_audit_linux_setlease(vfs_handle_struct *handle, files_struct *fsp,
+					int fd, int leasetype);
 static BOOL smb_full_audit_getlock(vfs_handle_struct *handle, files_struct *fsp, int fd,
 		       SMB_OFF_T *poffset, SMB_OFF_T *pcount, int *ptype, pid_t *ppid);
 static int smb_full_audit_symlink(vfs_handle_struct *handle,
@@ -381,6 +383,8 @@ static vfs_op_tuple audit_op_tuples[] = {
 	 SMB_VFS_LAYER_LOGGER},
 	{SMB_VFS_OP(smb_full_audit_kernel_flock),	SMB_VFS_OP_KERNEL_FLOCK,
 	 SMB_VFS_LAYER_LOGGER},
+	{SMB_VFS_OP(smb_full_audit_linux_setlease),       SMB_VFS_OP_LINUX_SETLEASE,
+         SMB_VFS_LAYER_LOGGER},
 	{SMB_VFS_OP(smb_full_audit_getlock),	SMB_VFS_OP_GETLOCK,
 	 SMB_VFS_LAYER_LOGGER},
 	{SMB_VFS_OP(smb_full_audit_symlink),	SMB_VFS_OP_SYMLINK,
@@ -549,6 +553,7 @@ static struct {
 	{ SMB_VFS_OP_FTRUNCATE,	"ftruncate" },
 	{ SMB_VFS_OP_LOCK,	"lock" },
 	{ SMB_VFS_OP_KERNEL_FLOCK,	"kernel_flock" },
+	{ SMB_VFS_OP_LINUX_SETLEASE, "linux_setlease" },
 	{ SMB_VFS_OP_GETLOCK,	"getlock" },
 	{ SMB_VFS_OP_SYMLINK,	"symlink" },
 	{ SMB_VFS_OP_READLINK,	"readlink" },
@@ -1313,6 +1318,19 @@ static int smb_full_audit_kernel_flock(struct vfs_handle_struct *handle,
 	return result;
 }
 
+static int smb_full_audit_linux_setlease(vfs_handle_struct *handle, files_struct *fsp,
+                                 int fd, int leasetype)
+{
+        int result;
+
+        result = SMB_VFS_NEXT_LINUX_SETLEASE(handle, fsp, fd, leasetype);
+
+        do_log(SMB_VFS_OP_LINUX_SETLEASE, (result >= 0), handle, "%s",
+               fsp->fsp_name);
+
+        return result;
+}
+
 static BOOL smb_full_audit_getlock(vfs_handle_struct *handle, files_struct *fsp, int fd,
 		       SMB_OFF_T *poffset, SMB_OFF_T *pcount, int *ptype, pid_t *ppid)
 {

source/modules/vfs_gpfs.c

@@ -52,6 +52,31 @@ static int vfs_gpfs_kernel_flock(vfs_handle_struct *handle, files_struct *fsp,
 	return 0;
 }
 
+static int vfs_gpfs_setlease(vfs_handle_struct *handle, files_struct *fsp, 
+				 int fd, int leasetype)
+{
+	int ret;
+	
+	START_PROFILE(syscall_linux_setlease);
+	
+	if ( linux_set_lease_sighandler(fd) == -1)
+		return -1;
+
+	ret = set_gpfs_lease(fd,leasetype);
+	
+	if ( ret < 0 ) {
+		/* This must have come from GPFS not being available */
+		/* or some other error, hence call the default */
+		ret = linux_setlease(fd, leasetype);
+	}
+
+	END_PROFILE(syscall_linux_setlease);
+
+	return ret;
+}
+
+
+
 static void gpfs_dumpacl(int level, struct gpfs_acl *gacl)
 {
 	int	i;
@@ -592,6 +617,10 @@ static vfs_op_tuple gpfs_op_tuples[] = {
 	 SMB_VFS_OP_KERNEL_FLOCK,
 	 SMB_VFS_LAYER_OPAQUE},
 
+	{SMB_VFS_OP(vfs_gpfs_setlease),
+	 SMB_VFS_OP_LINUX_SETLEASE,
+	 SMB_VFS_LAYER_OPAQUE},
+
 	{SMB_VFS_OP(gpfsacl_fget_nt_acl),
         SMB_VFS_OP_FGET_NT_ACL,
         SMB_VFS_LAYER_TRANSPARENT},

source/profile/profile.c

@@ -289,6 +289,7 @@ BOOL profile_setup(BOOL rdonly)
 	    "syscall_ftruncate",	/* PR_VALUE_SYSCALL_FTRUNCATE */
 	    "syscall_fcntl_lock",	/* PR_VALUE_SYSCALL_FCNTL_LOCK */
 	    "syscall_kernel_flock",     /* PR_VALUE_SYSCALL_KERNEL_FLOCK */
+	    "syscall_linux_setlease",   /* PR_VALUE_SYSCALL_LINUX_SETLEASE */
 	    "syscall_fcntl_getlock",	/* PR_VALUE_SYSCALL_FCNTL_GETLOCK */
 	    "syscall_readlink",		/* PR_VALUE_SYSCALL_READLINK */
 	    "syscall_symlink",		/* PR_VALUE_SYSCALL_SYMLINK */

source/smbd/oplock_linux.c

@@ -102,20 +102,29 @@ static void set_capability(unsigned capability)
 	}
 }
 
+/*
+ Call to set the kernel lease signal handler
+*/
+int linux_set_lease_sighandler(int fd)
+{
+        if (fcntl(fd, F_SETSIG, RT_SIGNAL_LEASE) == -1) {
+                DEBUG(3,("Failed to set signal handler for kernel lease\n"));
+                return -1;
+        }
+
+	return 0;
+}
+
 /****************************************************************************
  Call SETLEASE. If we get EACCES then we try setting up the right capability and
- try again
+ try again.
+ Use the SMB_VFS_LINUX_SETLEASE instead of this call directly.
 ****************************************************************************/
 
-static int linux_setlease(int fd, int leasetype)
+int linux_setlease(int fd, int leasetype)
 {
 	int ret;
 
-	if (fcntl(fd, F_SETSIG, RT_SIGNAL_LEASE) == -1) {
-		DEBUG(3,("Failed to set signal handler for kernel lease\n"));
-		return -1;
-	}
-
 	ret = fcntl(fd, F_SETLEASE, leasetype);
 	if (ret == -1 && errno == EACCES) {
 		set_capability(CAP_LEASE);
@@ -156,7 +165,7 @@ static files_struct *linux_oplock_receive_message(fd_set *fds)
 
 static BOOL linux_set_kernel_oplock(files_struct *fsp, int oplock_type)
 {
-	if (linux_setlease(fsp->fh->fd, F_WRLCK) == -1) {
+	if ( SMB_VFS_LINUX_SETLEASE(fsp,fsp->fh->fd, F_WRLCK) == -1) {
 		DEBUG(3,("linux_set_kernel_oplock: Refused oplock on file %s, "
 			 "fd = %d, dev = %x, inode = %.0f. (%s)\n",
 			 fsp->fsp_name, fsp->fh->fd, 
@@ -194,7 +203,7 @@ static void linux_release_kernel_oplock(files_struct *fsp)
 	/*
 	 * Remove the kernel oplock on this file.
 	 */
-	if (linux_setlease(fsp->fh->fd, F_UNLCK) == -1) {
+	if ( SMB_VFS_LINUX_SETLEASE(fsp,fsp->fh->fd, F_UNLCK) == -1) {
 		if (DEBUGLVL(0)) {
 			dbgtext("linux_release_kernel_oplock: Error when "
 				"removing kernel oplock on file " );