add sys/quota.h and quotactl syscall wrapper

based on patch by Timo Teräs.

diff --git a/include/sys/quota.h b/include/sys/quota.h
new file mode 100644 (file)
index 0000000..a06f335
--- /dev/null
+++ b/include/sys/quota.h
@@ -0,0 +1,104 @@
+#ifndef _SYS_QUOTA_H
+#define _SYS_QUOTA_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdint.h>
+
+#define _LINUX_QUOTA_VERSION 2
+
+#define dbtob(num) ((num) << 10)
+#define btodb(num) ((num) >> 10)
+#define fs_to_dq_blocks(num, blksize) (((num) * (blksize)) / 1024)
+
+#define MAX_IQ_TIME 604800
+#define MAX_DQ_TIME 604800
+
+#define MAXQUOTAS 2
+#define USRQUOTA  0
+#define GRPQUOTA  1
+
+#define INITQFNAMES { "user", "group", "undefined" };
+
+#define QUOTAFILENAME "quota"
+#define QUOTAGROUP "staff"
+
+#define NR_DQHASH 43
+#define NR_DQUOTS 256
+
+#define SUBCMDMASK       0x00ff
+#define SUBCMDSHIFT      8
+#define QCMD(cmd, type)  (((cmd) << SUBCMDSHIFT) | ((type) & SUBCMDMASK))
+
+#define Q_SYNC     0x800001
+#define Q_QUOTAON  0x800002
+#define Q_QUOTAOFF 0x800003
+#define Q_GETFMT   0x800004
+#define Q_GETINFO  0x800005
+#define Q_SETINFO  0x800006
+#define Q_GETQUOTA 0x800007
+#define Q_SETQUOTA 0x800008
+
+#define        QFMT_VFS_OLD 1
+#define        QFMT_VFS_V0 2
+#define QFMT_OCFS2 3
+#define        QFMT_VFS_V1 4
+
+#define QIF_BLIMITS    1
+#define QIF_SPACE      2
+#define QIF_ILIMITS    4
+#define QIF_INODES     8
+#define QIF_BTIME      16
+#define QIF_ITIME      32
+#define QIF_LIMITS     (QIF_BLIMITS | QIF_ILIMITS)
+#define QIF_USAGE      (QIF_SPACE | QIF_INODES)
+#define QIF_TIMES      (QIF_BTIME | QIF_ITIME)
+#define QIF_ALL                (QIF_LIMITS | QIF_USAGE | QIF_TIMES)
+
+struct dqblk
+{
+       uint64_t dqb_bhardlimit;
+       uint64_t dqb_bsoftlimit;
+       uint64_t dqb_curspace;
+       uint64_t dqb_ihardlimit;
+       uint64_t dqb_isoftlimit;
+       uint64_t dqb_curinodes;
+       uint64_t dqb_btime;
+       uint64_t dqb_itime;
+       uint32_t dqb_valid;
+};
+
+#define        dq_bhardlimit   dq_dqb.dqb_bhardlimit
+#define        dq_bsoftlimit   dq_dqb.dqb_bsoftlimit
+#define dq_curspace    dq_dqb.dqb_curspace
+#define dq_valid       dq_dqb.dqb_valid
+#define        dq_ihardlimit   dq_dqb.dqb_ihardlimit
+#define        dq_isoftlimit   dq_dqb.dqb_isoftlimit
+#define        dq_curinodes    dq_dqb.dqb_curinodes
+#define        dq_btime        dq_dqb.dqb_btime
+#define        dq_itime        dq_dqb.dqb_itime
+
+#define dqoff(UID)      ((long long)(UID) * sizeof (struct dqblk))
+
+#define IIF_BGRACE     1
+#define IIF_IGRACE     2
+#define IIF_FLAGS      4
+#define IIF_ALL                (IIF_BGRACE | IIF_IGRACE | IIF_FLAGS)
+
+struct dqinfo
+{
+       uint64_t dqi_bgrace;
+       uint64_t dqi_igrace;
+       uint32_t dqi_flags;
+       uint32_t dqi_valid;
+};
+
+int quotactl(int, const char *, int, char *);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif

diff --git a/src/linux/quotactl.c b/src/linux/quotactl.c
new file mode 100644 (file)
index 0000000..344eb0d
--- /dev/null
+++ b/src/linux/quotactl.c
@@ -0,0 +1,7 @@
+#include <sys/quota.h>
+#include "syscall.h"
+
+int quotactl(int cmd, const char *special, int id, char *addr)
+{
+       return syscall(SYS_quotactl, cmd, special, id, addr);
+}