sync HEAD with recent changes in 3.0

(This used to be commit c98399e3c9d74e19b7c9d806ca8028b48866931e)

1 files changed, 485 insertions, 0 deletions

diff --git a/source3/lib/sysquotas_linux.c b/source3/lib/sysquotas_linux.c
new file mode 100644
index 0000000000..be42fa23f4
--- /dev/null
+++ b/source3/lib/sysquotas_linux.c
@@ -0,0 +1,485 @@
+/* 
+   Unix SMB/CIFS implementation.
+   System QUOTA function wrappers for LINUX
+   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.
+*/
+
+
+#include "includes.h"
+
+#ifdef HAVE_QUOTACTL_LINUX 
+
+#include "samba_linux_quota.h"
+
+/****************************************************************************
+ Abstract out the v1 Linux quota get calls.
+****************************************************************************/
+static int sys_get_linux_v1_quota(const char *path, const char *bdev, enum SMB_QUOTA_TYPE qtype, unid_t id, SMB_DISK_QUOTA *dp)
+{
+	int ret = -1;
+	uint32 qflags = 0;
+	struct v1_kern_dqblk D;
+	SMB_BIG_UINT bsize = (SMB_BIG_UINT)QUOTABLOCK_SIZE;
+
+	ZERO_STRUCT(D);
+
+	switch (qtype) {
+		case SMB_USER_QUOTA_TYPE:
+			if ((ret = quotactl(QCMD(Q_V1_GETQUOTA,USRQUOTA), bdev, id.uid, (caddr_t)&D))&&errno != EDQUOT) {
+				return ret;
+			}
+
+			break;
+		case SMB_GROUP_QUOTA_TYPE:
+			if ((ret = quotactl(QCMD(Q_V1_GETQUOTA,GRPQUOTA), bdev, id.gid, (caddr_t)&D))&&errno != EDQUOT) {
+				return ret;
+			}
+
+			break;
+		case SMB_USER_FS_QUOTA_TYPE:
+			if ((ret = quotactl(QCMD(Q_V1_GETQUOTA,USRQUOTA), bdev, id.uid, (caddr_t)&D))==0) {
+				qflags |= QUOTAS_DENY_DISK;
+			}
+
+			break;
+		case SMB_GROUP_FS_QUOTA_TYPE:
+			if ((ret = quotactl(QCMD(Q_V1_GETQUOTA,GRPQUOTA), bdev, id.gid, (caddr_t)&D))==0) {
+				qflags |= QUOTAS_DENY_DISK;
+			}
+
+			break;
+		default:
+			errno = ENOSYS;
+			return -1;
+	}
+
+	dp->bsize = bsize;
+	dp->softlimit = (SMB_BIG_UINT)D.dqb_bsoftlimit;
+	dp->hardlimit = (SMB_BIG_UINT)D.dqb_bhardlimit;
+	dp->ihardlimit = (SMB_BIG_UINT)D.dqb_ihardlimit;
+	dp->isoftlimit = (SMB_BIG_UINT)D.dqb_isoftlimit;
+	dp->curinodes = (SMB_BIG_UINT)D.dqb_curinodes;
+	dp->curblocks = (SMB_BIG_UINT)D.dqb_curblocks;
+
+
+	dp->qflags = qflags;
+
+	return ret;
+}
+
+/****************************************************************************
+ Abstract out the v1 Linux quota set calls.
+****************************************************************************/
+static int sys_set_linux_v1_quota(const char *path, const char *bdev, enum SMB_QUOTA_TYPE qtype, unid_t id, SMB_DISK_QUOTA *dp)
+{
+	int ret = -1;
+	uint32 qflags = 0;
+	uint32 oldqflags = 0;
+	struct v1_kern_dqblk D;
+	SMB_BIG_UINT bsize = (SMB_BIG_UINT)QUOTABLOCK_SIZE;
+
+	ZERO_STRUCT(D);
+
+	if (bsize == dp->bsize) {
+		D.dqb_bsoftlimit = dp->softlimit;
+		D.dqb_bhardlimit = dp->hardlimit;
+		D.dqb_ihardlimit = dp->ihardlimit;
+		D.dqb_isoftlimit = dp->isoftlimit;
+	} else {
+		D.dqb_bsoftlimit = (dp->softlimit*dp->bsize)/bsize;
+		D.dqb_bhardlimit = (dp->hardlimit*dp->bsize)/bsize;
+		D.dqb_ihardlimit = (dp->ihardlimit*dp->bsize)/bsize;
+		D.dqb_isoftlimit = (dp->isoftlimit*dp->bsize)/bsize;
+	}
+
+	qflags = dp->qflags;
+
+	switch (qtype) {
+		case SMB_USER_QUOTA_TYPE:
+			ret = quotactl(QCMD(Q_V1_SETQUOTA,USRQUOTA), bdev, id.uid, (caddr_t)&D);
+			break;
+		case SMB_GROUP_QUOTA_TYPE:
+			ret = quotactl(QCMD(Q_V1_SETQUOTA,GRPQUOTA), bdev, id.gid, (caddr_t)&D);
+			break;
+		case SMB_USER_FS_QUOTA_TYPE:
+			if ((ret = quotactl(QCMD(Q_V1_GETQUOTA,USRQUOTA), bdev, id.uid, (caddr_t)&D))==0) {
+				oldqflags |= QUOTAS_DENY_DISK;
+			}
+
+			break;
+		case SMB_GROUP_FS_QUOTA_TYPE:
+			if ((ret = quotactl(QCMD(Q_V1_GETQUOTA,GRPQUOTA), bdev, id.gid, (caddr_t)&D))==0) {
+				oldqflags |= QUOTAS_DENY_DISK;
+			}
+
+			break;
+		default:
+			errno = ENOSYS;
+			return -1;
+	}
+
+	return ret;
+}
+
+/****************************************************************************
+ Abstract out the v2 Linux quota get calls.
+****************************************************************************/
+static int sys_get_linux_v2_quota(const char *path, const char *bdev, enum SMB_QUOTA_TYPE qtype, unid_t id, SMB_DISK_QUOTA *dp)
+{
+	int ret = -1;
+	uint32 qflags = 0;
+	struct v2_kern_dqblk D;
+	SMB_BIG_UINT bsize = (SMB_BIG_UINT)QUOTABLOCK_SIZE;
+
+	ZERO_STRUCT(D);
+
+	switch (qtype) {
+		case SMB_USER_QUOTA_TYPE:
+			if ((ret = quotactl(QCMD(Q_V2_GETQUOTA,USRQUOTA), bdev, id.uid, (caddr_t)&D))&&errno != EDQUOT) {
+				return ret;
+			}
+
+			break;
+		case SMB_GROUP_QUOTA_TYPE:
+			if ((ret = quotactl(QCMD(Q_V2_GETQUOTA,GRPQUOTA), bdev, id.gid, (caddr_t)&D))&&errno != EDQUOT) {
+				return ret;
+			}
+
+			break;
+		case SMB_USER_FS_QUOTA_TYPE:
+			if ((ret = quotactl(QCMD(Q_V2_GETQUOTA,USRQUOTA), bdev, id.uid, (caddr_t)&D))==0) {
+				qflags |= QUOTAS_DENY_DISK;
+			}
+
+			break;
+		case SMB_GROUP_FS_QUOTA_TYPE:
+			if ((ret = quotactl(QCMD(Q_V2_GETQUOTA,GRPQUOTA), bdev, id.gid, (caddr_t)&D))==0) {
+				qflags |= QUOTAS_DENY_DISK;
+			}
+
+			break;
+		default:
+			errno = ENOSYS;
+			return -1;
+	}
+
+	dp->bsize = bsize;
+	dp->softlimit = (SMB_BIG_UINT)D.dqb_bsoftlimit;
+	dp->hardlimit = (SMB_BIG_UINT)D.dqb_bhardlimit;
+	dp->ihardlimit = (SMB_BIG_UINT)D.dqb_ihardlimit;
+	dp->isoftlimit = (SMB_BIG_UINT)D.dqb_isoftlimit;
+	dp->curinodes = (SMB_BIG_UINT)D.dqb_curinodes;
+	dp->curblocks = (SMB_BIG_UINT)D.dqb_curspace/bsize;
+
+
+	dp->qflags = qflags;
+
+	return ret;
+}
+
+/****************************************************************************
+ Abstract out the v2 Linux quota set calls.
+****************************************************************************/
+static int sys_set_linux_v2_quota(const char *path, const char *bdev, enum SMB_QUOTA_TYPE qtype, unid_t id, SMB_DISK_QUOTA *dp)
+{
+	int ret = -1;
+	uint32 qflags = 0;
+	uint32 oldqflags = 0;
+	struct v2_kern_dqblk D;
+	SMB_BIG_UINT bsize = (SMB_BIG_UINT)QUOTABLOCK_SIZE;
+
+	ZERO_STRUCT(D);
+
+	if (bsize == dp->bsize) {
+		D.dqb_bsoftlimit = dp->softlimit;
+		D.dqb_bhardlimit = dp->hardlimit;
+		D.dqb_ihardlimit = dp->ihardlimit;
+		D.dqb_isoftlimit = dp->isoftlimit;
+	} else {
+		D.dqb_bsoftlimit = (dp->softlimit*dp->bsize)/bsize;
+		D.dqb_bhardlimit = (dp->hardlimit*dp->bsize)/bsize;
+		D.dqb_ihardlimit = (dp->ihardlimit*dp->bsize)/bsize;
+		D.dqb_isoftlimit = (dp->isoftlimit*dp->bsize)/bsize;
+	}
+
+	qflags = dp->qflags;
+
+	switch (qtype) {
+		case SMB_USER_QUOTA_TYPE:
+			ret = quotactl(QCMD(Q_V2_SETQUOTA,USRQUOTA), bdev, id.uid, (caddr_t)&D);
+			break;
+		case SMB_GROUP_QUOTA_TYPE:
+			ret = quotactl(QCMD(Q_V2_SETQUOTA,GRPQUOTA), bdev, id.gid, (caddr_t)&D);
+			break;
+		case SMB_USER_FS_QUOTA_TYPE:
+			if ((ret = quotactl(QCMD(Q_V2_GETQUOTA,USRQUOTA), bdev, id.uid, (caddr_t)&D))==0) {
+				oldqflags |= QUOTAS_DENY_DISK;
+			}
+
+			break;
+		case SMB_GROUP_FS_QUOTA_TYPE:
+			if ((ret = quotactl(QCMD(Q_V2_GETQUOTA,GRPQUOTA), bdev, id.gid, (caddr_t)&D))==0) {
+				oldqflags |= QUOTAS_DENY_DISK;
+			}
+
+			break;
+		default:
+			errno = ENOSYS;
+			return -1;
+	}
+
+	return ret;
+}
+
+/****************************************************************************
+ Abstract out the generic Linux quota get calls.
+****************************************************************************/
+static int sys_get_linux_gen_quota(const char *path, const char *bdev, enum SMB_QUOTA_TYPE qtype, unid_t id, SMB_DISK_QUOTA *dp)
+{
+	int ret = -1;
+	uint32 qflags = 0;
+	struct if_dqblk D;
+	SMB_BIG_UINT bsize = (SMB_BIG_UINT)QUOTABLOCK_SIZE;
+
+	ZERO_STRUCT(D);
+
+	switch (qtype) {
+		case SMB_USER_QUOTA_TYPE:
+			if ((ret = quotactl(QCMD(Q_GETQUOTA,USRQUOTA), bdev, id.uid, (caddr_t)&D))&&errno != EDQUOT) {
+				return ret;
+			}
+
+			break;
+		case SMB_GROUP_QUOTA_TYPE:
+			if ((ret = quotactl(QCMD(Q_GETQUOTA,GRPQUOTA), bdev, id.gid, (caddr_t)&D))&&errno != EDQUOT) {
+				return ret;
+			}
+
+			break;
+		case SMB_USER_FS_QUOTA_TYPE:
+			if ((ret = quotactl(QCMD(Q_GETQUOTA,USRQUOTA), bdev, id.uid, (caddr_t)&D))==0) {
+				qflags |= QUOTAS_DENY_DISK;
+			}
+
+			break;
+		case SMB_GROUP_FS_QUOTA_TYPE:
+			if ((ret = quotactl(QCMD(Q_GETQUOTA,GRPQUOTA), bdev, id.gid, (caddr_t)&D))==0) {
+				qflags |= QUOTAS_DENY_DISK;
+			}
+
+			break;
+		default:
+			errno = ENOSYS;
+			return -1;
+	}
+
+	dp->bsize = bsize;
+	dp->softlimit = (SMB_BIG_UINT)D.dqb_bsoftlimit;
+	dp->hardlimit = (SMB_BIG_UINT)D.dqb_bhardlimit;
+	dp->ihardlimit = (SMB_BIG_UINT)D.dqb_ihardlimit;
+	dp->isoftlimit = (SMB_BIG_UINT)D.dqb_isoftlimit;
+	dp->curinodes = (SMB_BIG_UINT)D.dqb_curinodes;
+	dp->curblocks = (SMB_BIG_UINT)D.dqb_curspace/bsize;
+
+
+	dp->qflags = qflags;
+
+	return ret;
+}
+
+/****************************************************************************
+ Abstract out the gen Linux quota set calls.
+****************************************************************************/
+static int sys_set_linux_gen_quota(const char *path, const char *bdev, enum SMB_QUOTA_TYPE qtype, unid_t id, SMB_DISK_QUOTA *dp)
+{
+	int ret = -1;
+	uint32 qflags = 0;
+	uint32 oldqflags = 0;
+	struct if_dqblk D;
+	SMB_BIG_UINT bsize = (SMB_BIG_UINT)QUOTABLOCK_SIZE;
+
+	ZERO_STRUCT(D);
+
+	if (bsize == dp->bsize) {
+		D.dqb_bsoftlimit = dp->softlimit;
+		D.dqb_bhardlimit = dp->hardlimit;
+		D.dqb_ihardlimit = dp->ihardlimit;
+		D.dqb_isoftlimit = dp->isoftlimit;
+	} else {
+		D.dqb_bsoftlimit = (dp->softlimit*dp->bsize)/bsize;
+		D.dqb_bhardlimit = (dp->hardlimit*dp->bsize)/bsize;
+		D.dqb_ihardlimit = (dp->ihardlimit*dp->bsize)/bsize;
+		D.dqb_isoftlimit = (dp->isoftlimit*dp->bsize)/bsize;
+	}
+
+	qflags = dp->qflags;
+
+	switch (qtype) {
+		case SMB_USER_QUOTA_TYPE:
+			ret = quotactl(QCMD(Q_SETQUOTA,USRQUOTA), bdev, id.uid, (caddr_t)&D);
+			break;
+		case SMB_GROUP_QUOTA_TYPE:
+			ret = quotactl(QCMD(Q_SETQUOTA,GRPQUOTA), bdev, id.gid, (caddr_t)&D);
+			break;
+		case SMB_USER_FS_QUOTA_TYPE:
+			if ((ret = quotactl(QCMD(Q_GETQUOTA,USRQUOTA), bdev, id.uid, (caddr_t)&D))==0) {
+				oldqflags |= QUOTAS_DENY_DISK;
+			}
+
+			break;
+		case SMB_GROUP_FS_QUOTA_TYPE:
+			if ((ret = quotactl(QCMD(Q_GETQUOTA,GRPQUOTA), bdev, id.gid, (caddr_t)&D))==0) {
+				oldqflags |= QUOTAS_DENY_DISK;
+			}
+
+			break;
+		default:
+			errno = ENOSYS;
+			return -1;
+	}
+
+	return ret;
+}
+
+/****************************************************************************
+ Abstract out the Linux quota get calls.
+****************************************************************************/
+int sys_get_vfs_quota(const char *path, const char *bdev, enum SMB_QUOTA_TYPE qtype, unid_t id, SMB_DISK_QUOTA *dp)
+{
+	int ret = -1;
+
+	if (!path||!bdev||!dp)
+		smb_panic("sys_set_vfs_quota: called with NULL pointer");
+
+	ZERO_STRUCT(*dp);
+	dp->qtype = qtype;
+
+	switch (qtype) {
+		case SMB_USER_QUOTA_TYPE:
+		case SMB_GROUP_QUOTA_TYPE:
+			if ((ret=sys_get_linux_gen_quota(path, bdev, qtype, id, dp))&&errno != EDQUOT) {
+				if ((ret=sys_get_linux_v2_quota(path, bdev, qtype, id, dp))&&errno != EDQUOT) {
+					if ((ret=sys_get_linux_v1_quota(path, bdev, qtype, id, dp))&&errno != EDQUOT) {
+						return ret;
+					}
+				}
+			}
+
+			if ((dp->curblocks==0)&&
+				(dp->softlimit==0)&&
+				(dp->hardlimit==0)) {
+				/* the upper layer functions don't want empty quota records...*/
+				return -1;
+			}
+
+			break;
+		case SMB_USER_FS_QUOTA_TYPE:
+			id.uid = getuid();
+
+			if ((ret=sys_get_linux_gen_quota(path, bdev, qtype, id, dp))&&errno != EDQUOT) {
+				if ((ret=sys_get_linux_v2_quota(path, bdev, qtype, id, dp))&&errno != EDQUOT) {
+					ret=sys_get_linux_v1_quota(path, bdev, qtype, id, dp);
+				}
+			}
+
+			ret = 0;
+			break;
+		case SMB_GROUP_FS_QUOTA_TYPE:
+			id.gid = getgid();
+
+			if ((ret=sys_get_linux_gen_quota(path, bdev, qtype, id, dp))&&errno != EDQUOT) {
+				if ((ret=sys_get_linux_v2_quota(path, bdev, qtype, id, dp))&&errno != EDQUOT) {
+					ret=sys_get_linux_v1_quota(path, bdev, qtype, id, dp);
+				}
+			}
+
+			ret = 0;
+			break;
+		default:
+			errno = ENOSYS;
+			return -1;
+	}
+
+	return ret;
+}
+
+/****************************************************************************
+ Abstract out the Linux quota set calls.
+****************************************************************************/
+int sys_set_vfs_quota(const char *path, const char *bdev, enum SMB_QUOTA_TYPE qtype, unid_t id, SMB_DISK_QUOTA *dp)
+{
+	int ret = -1;
+	uint32 oldqflags = 0;
+
+	if (!path||!bdev||!dp)
+		smb_panic("sys_set_vfs_quota: called with NULL pointer");
+
+	oldqflags = dp->qflags;
+
+	switch (qtype) {
+		case SMB_USER_QUOTA_TYPE:
+		case SMB_GROUP_QUOTA_TYPE:
+			if ((ret=sys_set_linux_gen_quota(path, bdev, qtype, id, dp))) {
+				if ((ret=sys_set_linux_v2_quota(path, bdev, qtype, id, dp))) {
+					if ((ret=sys_set_linux_v1_quota(path, bdev, qtype, id, dp))) {
+						return ret;
+					}
+				}
+			}
+			break;
+		case SMB_USER_FS_QUOTA_TYPE:
+			id.uid = getuid();
+
+			if ((ret=sys_get_linux_gen_quota(path, bdev, qtype, id, dp))) {
+				if ((ret=sys_get_linux_v2_quota(path, bdev, qtype, id, dp))) {
+					ret=sys_get_linux_v1_quota(path, bdev, qtype, id, dp);
+				}
+			}
+
+			if (oldqflags == dp->qflags) {
+				ret = 0;
+			} else {
+				ret = -1;
+			}
+			break;
+		case SMB_GROUP_FS_QUOTA_TYPE:
+			id.gid = getgid();
+
+			if ((ret=sys_get_linux_gen_quota(path, bdev, qtype, id, dp))) {
+				if ((ret=sys_get_linux_v2_quota(path, bdev, qtype, id, dp))) {
+					ret=sys_get_linux_v1_quota(path, bdev, qtype, id, dp);
+				}
+			}
+
+			if (oldqflags == dp->qflags) {
+				ret = 0;
+			} else {
+				ret = -1;
+			}
+
+			break;
+		default:
+			errno = ENOSYS;
+			return -1;
+	}
+
+	return ret;
+}
+
+#else /* HAVE_QUOTACTL_LINUX */
+ void dummy_sysquotas_linux(void){}
+#endif /* HAVE_QUOTACTL_LINUX */