diff options
Diffstat (limited to 'quota.h')
-rw-r--r-- | quota.h | 83 |
1 files changed, 83 insertions, 0 deletions
@@ -0,0 +1,83 @@ +#ifndef _QUOTA_H +#define _QUOTA_H + +#include <sys/types.h> + +typedef u_int32_t qid_t; /* Type in which we store ids in memory */ +typedef u_int64_t qsize_t; /* Type in which we store size limitations */ + +#define MAXQUOTAS 2 +#define USRQUOTA 0 /* element used for user quotas */ +#define GRPQUOTA 1 /* element used for group quotas */ + +/* + * Definitions for the default names of the quotas files. + */ +#define INITQFNAMES { \ + "user", /* USRQUOTA */ \ + "group", /* GRPQUOTA */ \ + "undefined", \ +} + +/* + * Definitions of magics and versions of current quota files + */ +#define INITQMAGICS {\ + 0xd9c01f11, /* USRQUOTA */\ + 0xd9c01927 /* GRPQUOTA */\ +} + +/* Size of blocks in which are counted size limits in generic utility parts */ +#define QUOTABLOCK_BITS 10 +#define QUOTABLOCK_SIZE (1 << QUOTABLOCK_BITS) + +/* Conversion routines from and to quota blocks */ +#define qb2kb(x) ((x) << (QUOTABLOCK_BITS-10)) +#define kb2qb(x) ((x) >> (QUOTABLOCK_BITS-10)) +#define toqb(x) (((x) + QUOTABLOCK_SIZE - 1) >> QUOTABLOCK_BITS) + +/* + * Command definitions for the 'quotactl' system call. + * The commands are broken into a main command defined below + * and a subcommand that is used to convey the type of + * quota that is being manipulated (see above). + */ +#define SUBCMDMASK 0x00ff +#define SUBCMDSHIFT 8 +#define QCMD(cmd, type) (((cmd) << SUBCMDSHIFT) | ((type) & SUBCMDMASK)) + +#define Q_QUOTAON 0x0100 /* enable quotas */ +#define Q_QUOTAOFF 0x0200 /* disable quotas */ +#define Q_SYNC 0x0600 /* sync disk copy of a filesystems quotas */ +#define Q_GETSTATS 0x1100 /* get collected stats */ + +struct dqstats { + u_int32_t lookups; + u_int32_t drops; + u_int32_t reads; + u_int32_t writes; + u_int32_t cache_hits; + u_int32_t allocated_dquots; + u_int32_t free_dquots; + u_int32_t syncs; + u_int32_t version; +}; + +/* Ioctl for getting quota size */ +#include <sys/ioctl.h> +#ifndef FIOQSIZE + #if defined(__alpha__) || defined(__powerpc__) || defined(__sh__) || defined(__sparc__) || defined(__sparc64__) + #define FIOQSIZE _IOR('f', 128, loff_t) + #elif defined(__arm__) || defined(__mc68000__) || defined(__s390__) + #define FIOQSIZE 0x545E + #elif defined(__i386__) || defined(__i486__) || defined(__i586__) || defined(__ia64__) + #define FIOQSIZE 0x5460 + #elif defined(__mips__) || defined(__mips64__) + #define FIOQSIZE 0x6667 + #endif +#endif + + +long quotactl __P((int, const char *, qid_t, caddr_t)); + +#endif /* _QUOTA_ */ |