--- /dev/null
+/*
+ * Store default Quotas in a specified quota record
+ *
+ * Copyright (C) Stefan (metze) Metzmacher 2003
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+/*
+ * This module allows the default quota values,
+ * in the windows explorer GUI, to be stored on a samba server.
+ * The problem is that linux filesystems only store quotas
+ * for users and groups, but no default quotas.
+ *
+ * Samba returns NO_LIMIT as the default quotas by default
+ * and refuses to update them.
+ *
+ * With this module you can store the default quotas that are reported to
+ * a windows client, in the quota record of a user. By default the root user
+ * is taken because quota limits for root are typically not enforced.
+ *
+ * This module takes 2 parametric parameters in smb.conf:
+ * (the default prefix for them is 'default_quota',
+ * it can be overwrittem when you load the module in
+ * the 'vfs objects' parameter like this:
+ * vfs objects = default_quota:myprefix)
+ *
+ * "<myprefix>:uid" parameter takes a integer argument,
+ * it specifies the uid of the quota record, that will be taken for
+ * storing the default USER-quotas.
+ *
+ * - default value: '0' (for root user)
+ * - e.g.: default_quota:uid = 65534
+ *
+ * "<myprefix>:uid nolimit" parameter takes a boolean argument,
+ * it specifies if we should report the stored default quota values,
+ * also for the user record, or if you should just report NO_LIMIT
+ * to the windows client for the user specified by the "<prefix>:uid" parameter.
+ *
+ * - default value: yes (that means to report NO_LIMIT)
+ * - e.g.: default_quota:uid nolimit = no
+ *
+ * "<myprefix>:gid" parameter takes a integer argument,
+ * it's just like "<prefix>:uid" but for group quotas.
+ * (NOTE: group quotas are not supported from the windows explorer!)
+ *
+ * - default value: '0' (for root group)
+ * - e.g.: default_quota:gid = 65534
+ *
+ * "<myprefix>:gid nolimit" parameter takes a boolean argument,
+ * it's just like "<prefix>:uid nolimit" but for group quotas.
+ * (NOTE: group quotas are not supported from the windows explorer!)
+ *
+ * - default value: yes (that means to report NO_LIMIT)
+ * - e.g.: default_quota:uid nolimit = no
+ *
+ */
+
+#include "includes.h"
+
+#undef DBGC_CLASS
+#define DBGC_CLASS DBGC_QUOTA
+
+#define DEFAULT_QUOTA_NAME "default_quota"
+
+#define DEFAULT_QUOTA_UID_DEFAULT 0
+#define DEFAULT_QUOTA_UID_NOLIMIT_DEFAULT True
+#define DEFAULT_QUOTA_GID_DEFAULT 0
+#define DEFAULT_QUOTA_GID_NOLIMIT_DEFAULT True
+
+#define DEFAULT_QUOTA_UID(handle) \
+ (uid_t)lp_parm_int(SNUM((handle)->conn),DEFAULT_QUOTA_NAME,"uid",DEFAULT_QUOTA_UID_DEFAULT)
+
+#define DEFAULT_QUOTA_UID_NOLIMIT(handle) \
+ lp_parm_bool(SNUM((handle)->conn),DEFAULT_QUOTA_NAME,"uid nolimit",DEFAULT_QUOTA_UID_NOLIMIT_DEFAULT)
+
+#define DEFAULT_QUOTA_GID(handle) \
+ (gid_t)lp_parm_int(SNUM((handle)->conn),DEFAULT_QUOTA_NAME,"gid",DEFAULT_QUOTA_GID_DEFAULT)
+
+#define DEFAULT_QUOTA_GID_NOLIMIT(handle) \
+ lp_parm_bool(SNUM((handle)->conn),DEFAULT_QUOTA_NAME,"gid nolimit",DEFAULT_QUOTA_GID_NOLIMIT_DEFAULT)
+
+static int default_quota_get_quota(vfs_handle_struct *handle, connection_struct *conn, enum SMB_QUOTA_TYPE qtype, unid_t id, SMB_DISK_QUOTA *dq)
+{
+ int ret = -1;
+
+ if ((ret=SMB_VFS_NEXT_GET_QUOTA(handle, conn, qtype, id, dq))!=0) {
+ return ret;
+ }
+
+ switch (qtype) {
+ case SMB_USER_QUOTA_TYPE:
+ /* we use id.uid == 0 for default quotas */
+ if ((id.uid==DEFAULT_QUOTA_UID(handle)) &&
+ DEFAULT_QUOTA_UID_NOLIMIT(handle)) {
+ SMB_QUOTAS_SET_NO_LIMIT(dq);
+ }
+ break;
+#ifdef HAVE_GROUP_QUOTA
+ case SMB_GROUP_QUOTA_TYPE:
+ /* we use id.gid == 0 for default quotas */
+ if ((id.gid==DEFAULT_QUOTA_GID(handle)) &&
+ DEFAULT_QUOTA_GID_NOLIMIT(handle)) {
+ SMB_QUOTAS_SET_NO_LIMIT(dq);
+ }
+ break;
+#endif /* HAVE_GROUP_QUOTA */
+ case SMB_USER_FS_QUOTA_TYPE:
+ {
+ unid_t qid;
+ uint32 qflags = dq->qflags;
+ qid.uid = DEFAULT_QUOTA_UID(handle);
+ SMB_VFS_NEXT_GET_QUOTA(handle, conn, SMB_USER_QUOTA_TYPE, qid, dq);
+ dq->qflags = qflags;
+ }
+ break;
+#ifdef HAVE_GROUP_QUOTA
+ case SMB_GROUP_FS_QUOTA_TYPE:
+ {
+ unid_t qid;
+ uint32 qflags = dq->qflags;
+ qid.gid = DEFAULT_QUOTA_GID(handle);
+ SMB_VFS_NEXT_GET_QUOTA(handle, conn, SMB_GROUP_QUOTA_TYPE, qid, dq);
+ dq->qflags = qflags;
+ }
+ break;
+#endif /* HAVE_GROUP_QUOTA */
+ default:
+ errno = ENOSYS;
+ return -1;
+ break;
+ }
+
+ return ret;
+}
+
+static int default_quota_set_quota(vfs_handle_struct *handle, connection_struct *conn, enum SMB_QUOTA_TYPE qtype, unid_t id, SMB_DISK_QUOTA *dq)
+{
+ int ret = -1;
+
+ switch (qtype) {
+ case SMB_USER_QUOTA_TYPE:
+ /* we use id.uid == 0 for default quotas */
+ if ((id.uid==DEFAULT_QUOTA_UID(handle)) &&
+ DEFAULT_QUOTA_UID_NOLIMIT(handle)) {
+ return -1;
+ }
+ break;
+#ifdef HAVE_GROUP_QUOTA
+ case SMB_GROUP_QUOTA_TYPE:
+ /* we use id.gid == 0 for default quotas */
+ if ((id.gid==DEFAULT_QUOTA_GID(handle)) &&
+ DEFAULT_QUOTA_GID_NOLIMIT(handle)) {
+ return -1;
+ }
+ break;
+#endif /* HAVE_GROUP_QUOTA */
+ case SMB_USER_FS_QUOTA_TYPE:
+ break;
+#ifdef HAVE_GROUP_QUOTA
+ case SMB_GROUP_FS_QUOTA_TYPE:
+ break;
+#endif /* HAVE_GROUP_QUOTA */
+ default:
+ errno = ENOSYS;
+ return -1;
+ break;
+ }
+
+ if ((ret=SMB_VFS_NEXT_SET_QUOTA(handle, conn, qtype, id, dq))!=0) {
+ return ret;
+ }
+
+ switch (qtype) {
+ case SMB_USER_QUOTA_TYPE:
+ break;
+#ifdef HAVE_GROUP_QUOTA
+ case SMB_GROUP_QUOTA_TYPE:
+ break;
+#endif /* HAVE_GROUP_QUOTA */
+ case SMB_USER_FS_QUOTA_TYPE:
+ {
+ unid_t qid;
+ qid.uid = DEFAULT_QUOTA_UID(handle);
+ ret = SMB_VFS_NEXT_SET_QUOTA(handle, conn, SMB_USER_QUOTA_TYPE, qid, dq);
+ }
+ break;
+#ifdef HAVE_GROUP_QUOTA
+ case SMB_GROUP_FS_QUOTA_TYPE:
+ {
+ unid_t qid;
+ qid.gid = DEFAULT_QUOTA_GID(handle);
+ ret = SMB_VFS_NEXT_SET_QUOTA(handle, conn, SMB_GROUP_QUOTA_TYPE, qid, dq);
+ }
+ break;
+#endif /* HAVE_GROUP_QUOTA */
+ default:
+ errno = ENOSYS;
+ return -1;
+ break;
+ }
+
+ return ret;
+}
+
+/* VFS operations structure */
+
+static vfs_op_tuple default_quota_ops[] = {
+ {SMB_VFS_OP(default_quota_get_quota), SMB_VFS_OP_GET_QUOTA, SMB_VFS_LAYER_TRANSPARENT},
+ {SMB_VFS_OP(default_quota_set_quota), SMB_VFS_OP_SET_QUOTA, SMB_VFS_LAYER_TRANSPARENT},
+
+ {SMB_VFS_OP(NULL), SMB_VFS_OP_NOOP, SMB_VFS_LAYER_NOOP}
+};
+
+NTSTATUS vfs_default_quota_init(void)
+{
+ return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, DEFAULT_QUOTA_NAME, default_quota_ops);
+}
projects / samba / blobdiff