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strace/quota.c
Dmitry V. Levin cca2e53c4a quotactl: add decoding of Q_GETNEXTQUOTA and Q_XGETNEXTQUOTA 
* quota.c (if_nextdqblk): New structure.
(decode_cmd_data): Handle Q_GETNEXTQUOTA and Q_XGETNEXTQUOTA.
2016-03-29 01:15:24 +00:00

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/*
* Copyright (c) 1991, 1992 Paul Kranenburg <pk@cs.few.eur.nl>
* Copyright (c) 1993 Branko Lankester <branko@hacktic.nl>
* Copyright (c) 1993, 1994, 1995, 1996 Rick Sladkey <jrs@world.std.com>
* Copyright (c) 1996-1999 Wichert Akkerman <wichert@cistron.nl>
* Copyright (c) 2005-2016 Dmitry V. Levin <ldv@altlinux.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "defs.h"
#define SUBCMDMASK 0x00ff
#define SUBCMDSHIFT 8
#define QCMD_CMD(cmd) ((uint32_t)(cmd) >> SUBCMDSHIFT)
#define QCMD_TYPE(cmd) ((uint32_t)(cmd) & SUBCMDMASK)
#define OLD_CMD(cmd) ((uint32_t)(cmd) << SUBCMDSHIFT)
#define NEW_CMD(cmd) ((uint32_t)(cmd) | 0x800000)
#define XQM_CMD(cmd) ((uint32_t)(cmd) | ('X' << SUBCMDSHIFT))
#include "xlat/quotacmds.h"
#include "xlat/quotatypes.h"
#include "xlat/quota_formats.h"
#include "xlat/xfs_quota_flags.h"
#include "xlat/xfs_dqblk_flags.h"
#include "xlat/if_dqblk_valid.h"
#include "xlat/if_dqinfo_flags.h"
#include "xlat/if_dqinfo_valid.h"
struct if_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;
};
struct if_nextdqblk {
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;
uint32_t dqb_id;
};
struct v1_dqblk
{
uint32_t dqb_bhardlimit; /* absolute limit on disk blks alloc */
uint32_t dqb_bsoftlimit; /* preferred limit on disk blks */
uint32_t dqb_curblocks; /* current block count */
uint32_t dqb_ihardlimit; /* maximum # allocated inodes */
uint32_t dqb_isoftlimit; /* preferred inode limit */
uint32_t dqb_curinodes; /* current # allocated inodes */
time_t dqb_btime; /* time limit for excessive disk use */
time_t dqb_itime; /* time limit for excessive files */
};
struct v2_dqblk
{
unsigned int dqb_ihardlimit;
unsigned int dqb_isoftlimit;
unsigned int dqb_curinodes;
unsigned int dqb_bhardlimit;
unsigned int dqb_bsoftlimit;
uint64_t dqb_curspace;
time_t dqb_btime;
time_t dqb_itime;
};
struct xfs_dqblk
{
int8_t d_version; /* version of this structure */
int8_t d_flags; /* XFS_{USER,PROJ,GROUP}_QUOTA */
uint16_t d_fieldmask; /* field specifier */
uint32_t d_id; /* user, project, or group ID */
uint64_t d_blk_hardlimit; /* absolute limit on disk blks */
uint64_t d_blk_softlimit; /* preferred limit on disk blks */
uint64_t d_ino_hardlimit; /* maximum # allocated inodes */
uint64_t d_ino_softlimit; /* preferred inode limit */
uint64_t d_bcount; /* # disk blocks owned by the user */
uint64_t d_icount; /* # inodes owned by the user */
int32_t d_itimer; /* zero if within inode limits */
int32_t d_btimer; /* similar to above; for disk blocks */
uint16_t d_iwarns; /* # warnings issued wrt num inodes */
uint16_t d_bwarns; /* # warnings issued wrt disk blocks */
int32_t d_padding2; /* padding2 - for future use */
uint64_t d_rtb_hardlimit; /* absolute limit on realtime blks */
uint64_t d_rtb_softlimit; /* preferred limit on RT disk blks */
uint64_t d_rtbcount; /* # realtime blocks owned */
int32_t d_rtbtimer; /* similar to above; for RT disk blks */
uint16_t d_rtbwarns; /* # warnings issued wrt RT disk blks */
int16_t d_padding3; /* padding3 - for future use */
char d_padding4[8]; /* yet more padding */
};
struct if_dqinfo
{
uint64_t dqi_bgrace;
uint64_t dqi_igrace;
uint32_t dqi_flags;
uint32_t dqi_valid;
};
struct v2_dqinfo
{
unsigned int dqi_bgrace;
unsigned int dqi_igrace;
unsigned int dqi_flags;
unsigned int dqi_blocks;
unsigned int dqi_free_blk;
unsigned int dqi_free_entry;
};
struct v1_dqstats
{
uint32_t lookups;
uint32_t drops;
uint32_t reads;
uint32_t writes;
uint32_t cache_hits;
uint32_t allocated_dquots;
uint32_t free_dquots;
uint32_t syncs;
};
struct v2_dqstats
{
uint32_t lookups;
uint32_t drops;
uint32_t reads;
uint32_t writes;
uint32_t cache_hits;
uint32_t allocated_dquots;
uint32_t free_dquots;
uint32_t syncs;
uint32_t version;
};
typedef struct fs_qfilestat
{
uint64_t qfs_ino; /* inode number */
uint64_t qfs_nblks; /* number of BBs 512-byte-blks */
uint32_t qfs_nextents; /* number of extents */
} fs_qfilestat_t;
struct xfs_dqstats
{
int8_t qs_version; /* version number for future changes */
uint16_t qs_flags; /* XFS_QUOTA_{U,P,G}DQ_{ACCT,ENFD} */
int8_t qs_pad; /* unused */
fs_qfilestat_t qs_uquota; /* user quota storage information */
fs_qfilestat_t qs_gquota; /* group quota storage information */
uint32_t qs_incoredqs; /* number of dquots incore */
int32_t qs_btimelimit; /* limit for blks timer */
int32_t qs_itimelimit; /* limit for inodes timer */
int32_t qs_rtbtimelimit; /* limit for rt blks timer */
uint16_t qs_bwarnlimit; /* limit for num warnings */
uint16_t qs_iwarnlimit; /* limit for num warnings */
};
struct fs_qfilestatv {
uint64_t qfs_ino, qfs_nblks;
uint32_t qfs_nextents, qfs_pad;
};
struct fs_quota_statv {
int8_t qs_version;
uint8_t qs_pad1;
uint16_t qs_flags;
uint32_t qs_incoredqs;
struct fs_qfilestatv qs_uquota;
struct fs_qfilestatv qs_gquota;
struct fs_qfilestatv qs_pquota;
int32_t qs_btimelimit;
int32_t qs_itimelimit;
int32_t qs_rtbtimelimit;
uint16_t qs_bwarnlimit;
uint16_t qs_iwarnlimit;
uint64_t qs_pad2[8];
};
static int
decode_cmd_data(struct tcb *tcp, uint32_t cmd, unsigned long data)
{
switch (cmd) {
case Q_GETQUOTA:
if (entering(tcp))
return 0;
case Q_SETQUOTA:
{
struct if_dqblk dq;
if (umove_or_printaddr(tcp, data, &dq))
break;
tprintf("{bhardlimit=%" PRIu64 ", ", dq.dqb_bhardlimit);
tprintf("bsoftlimit=%" PRIu64 ", ", dq.dqb_bsoftlimit);
tprintf("curspace=%" PRIu64 ", ", dq.dqb_curspace);
tprintf("ihardlimit=%" PRIu64 ", ", dq.dqb_ihardlimit);
tprintf("isoftlimit=%" PRIu64 ", ", dq.dqb_isoftlimit);
tprintf("curinodes=%" PRIu64 ", ", dq.dqb_curinodes);
if (!abbrev(tcp)) {
tprintf("btime=%" PRIu64 ", ", dq.dqb_btime);
tprintf("itime=%" PRIu64 ", ", dq.dqb_itime);
tprints("valid=");
printflags(if_dqblk_valid,
dq.dqb_valid, "QIF_???");
tprints("}");
} else
tprints("...}");
break;
}
case Q_GETNEXTQUOTA:
{
struct if_nextdqblk dq;
if (entering(tcp))
return 0;
if (umove_or_printaddr(tcp, data, &dq))
break;
tprintf("{bhardlimit=%" PRIu64 ", ", dq.dqb_bhardlimit);
tprintf("bsoftlimit=%" PRIu64 ", ", dq.dqb_bsoftlimit);
tprintf("curspace=%" PRIu64 ", ", dq.dqb_curspace);
tprintf("ihardlimit=%" PRIu64 ", ", dq.dqb_ihardlimit);
tprintf("isoftlimit=%" PRIu64 ", ", dq.dqb_isoftlimit);
tprintf("curinodes=%" PRIu64 ", ", dq.dqb_curinodes);
if (!abbrev(tcp)) {
tprintf("btime=%" PRIu64 ", ", dq.dqb_btime);
tprintf("itime=%" PRIu64 ", ", dq.dqb_itime);
tprints("valid=");
printflags(if_dqblk_valid,
dq.dqb_valid, "QIF_???");
tprintf(", id=%u}", dq.dqb_id);
} else
tprintf("id=%u, ...}", dq.dqb_id);
break;
}
case Q_V1_GETQUOTA:
if (entering(tcp))
return 0;
case Q_V1_SETQUOTA:
{
struct v1_dqblk dq;
if (umove_or_printaddr(tcp, data, &dq))
break;
tprintf("{bhardlimit=%u, ", dq.dqb_bhardlimit);
tprintf("bsoftlimit=%u, ", dq.dqb_bsoftlimit);
tprintf("curblocks=%u, ", dq.dqb_curblocks);
tprintf("ihardlimit=%u, ", dq.dqb_ihardlimit);
tprintf("isoftlimit=%u, ", dq.dqb_isoftlimit);
tprintf("curinodes=%u, ", dq.dqb_curinodes);
tprintf("btime=%lu, ", (long) dq.dqb_btime);
tprintf("itime=%lu}", (long) dq.dqb_itime);
break;
}
case Q_V2_GETQUOTA:
if (entering(tcp))
return 0;
case Q_V2_SETQUOTA:
{
struct v2_dqblk dq;
if (umove_or_printaddr(tcp, data, &dq))
break;
tprintf("{ihardlimit=%u, ", dq.dqb_ihardlimit);
tprintf("isoftlimit=%u, ", dq.dqb_isoftlimit);
tprintf("curinodes=%u, ", dq.dqb_curinodes);
tprintf("bhardlimit=%u, ", dq.dqb_bhardlimit);
tprintf("bsoftlimit=%u, ", dq.dqb_bsoftlimit);
tprintf("curspace=%" PRIu64 ", ", dq.dqb_curspace);
tprintf("btime=%lu, ", (long) dq.dqb_btime);
tprintf("itime=%lu}", (long) dq.dqb_itime);
break;
}
case Q_XGETQUOTA:
case Q_XGETNEXTQUOTA:
if (entering(tcp))
return 0;
case Q_XSETQLIM:
{
struct xfs_dqblk dq;
if (umove_or_printaddr(tcp, data, &dq))
break;
tprintf("{version=%d, ", dq.d_version);
tprints("flags=");
printflags(xfs_dqblk_flags,
dq.d_flags, "XFS_???_QUOTA");
tprintf(", fieldmask=%#x, ", dq.d_fieldmask);
tprintf("id=%u, ", dq.d_id);
tprintf("blk_hardlimit=%" PRIu64 ", ", dq.d_blk_hardlimit);
tprintf("blk_softlimit=%" PRIu64 ", ", dq.d_blk_softlimit);
tprintf("ino_hardlimit=%" PRIu64 ", ", dq.d_ino_hardlimit);
tprintf("ino_softlimit=%" PRIu64 ", ", dq.d_ino_softlimit);
tprintf("bcount=%" PRIu64 ", ", dq.d_bcount);
tprintf("icount=%" PRIu64 ", ", dq.d_icount);
if (!abbrev(tcp)) {
tprintf("itimer=%d, ", dq.d_itimer);
tprintf("btimer=%d, ", dq.d_btimer);
tprintf("iwarns=%u, ", dq.d_iwarns);
tprintf("bwarns=%u, ", dq.d_bwarns);
tprintf("rtbcount=%" PRIu64 ", ", dq.d_rtbcount);
tprintf("rtbtimer=%d, ", dq.d_rtbtimer);
tprintf("rtbwarns=%u}", dq.d_rtbwarns);
} else
tprints("...}");
break;
}
case Q_GETFMT:
{
uint32_t fmt;
if (entering(tcp))
return 0;
if (umove_or_printaddr(tcp, data, &fmt))
break;
tprints("[");
printxval(quota_formats, fmt, "QFMT_VFS_???");
tprints("]");
break;
}
case Q_GETINFO:
if (entering(tcp))
return 0;
case Q_SETINFO:
{
struct if_dqinfo dq;
if (umove_or_printaddr(tcp, data, &dq))
break;
tprintf("{bgrace=%" PRIu64 ", ", dq.dqi_bgrace);
tprintf("igrace=%" PRIu64 ", ", dq.dqi_igrace);
tprints("flags=");
printflags(if_dqinfo_flags, dq.dqi_flags, "DQF_???");
tprints(", valid=");
printflags(if_dqinfo_valid, dq.dqi_valid, "IIF_???");
tprints("}");
break;
}
case Q_V2_GETINFO:
if (entering(tcp))
return 0;
case Q_V2_SETINFO:
{
struct v2_dqinfo dq;
if (umove_or_printaddr(tcp, data, &dq))
break;
tprintf("{bgrace=%u, ", dq.dqi_bgrace);
tprintf("igrace=%u, ", dq.dqi_igrace);
tprints("flags=");
printflags(if_dqinfo_flags, dq.dqi_flags, "DQF_???");
tprintf(", blocks=%u, ", dq.dqi_blocks);
tprintf("free_blk=%u, ", dq.dqi_free_blk);
tprintf("free_entry=%u}", dq.dqi_free_entry);
break;
}
case Q_V1_GETSTATS:
{
struct v1_dqstats dq;
if (entering(tcp))
return 0;
if (umove_or_printaddr(tcp, data, &dq))
break;
tprintf("{lookups=%u, ", dq.lookups);
tprintf("drops=%u, ", dq.drops);
tprintf("reads=%u, ", dq.reads);
tprintf("writes=%u, ", dq.writes);
tprintf("cache_hits=%u, ", dq.cache_hits);
tprintf("allocated_dquots=%u, ", dq.allocated_dquots);
tprintf("free_dquots=%u, ", dq.free_dquots);
tprintf("syncs=%u}", dq.syncs);
break;
}
case Q_V2_GETSTATS:
{
struct v2_dqstats dq;
if (entering(tcp))
return 0;
if (umove_or_printaddr(tcp, data, &dq))
break;
tprintf("{lookups=%u, ", dq.lookups);
tprintf("drops=%u, ", dq.drops);
tprintf("reads=%u, ", dq.reads);
tprintf("writes=%u, ", dq.writes);
tprintf("cache_hits=%u, ", dq.cache_hits);
tprintf("allocated_dquots=%u, ", dq.allocated_dquots);
tprintf("free_dquots=%u, ", dq.free_dquots);
tprintf("syncs=%u, ", dq.syncs);
tprintf("version=%u}", dq.version);
break;
}
case Q_XGETQSTAT:
{
struct xfs_dqstats dq;
if (entering(tcp))
return 0;
if (umove_or_printaddr(tcp, data, &dq))
break;
tprintf("{version=%d, ", dq.qs_version);
if (abbrev(tcp)) {
tprints("...}");
break;
}
tprints("flags=");
printflags(xfs_quota_flags,
dq.qs_flags, "XFS_QUOTA_???");
tprintf(", incoredqs=%u, ", dq.qs_incoredqs);
tprintf("u_ino=%" PRIu64 ", ", dq.qs_uquota.qfs_ino);
tprintf("u_nblks=%" PRIu64 ", ", dq.qs_uquota.qfs_nblks);
tprintf("u_nextents=%u, ", dq.qs_uquota.qfs_nextents);
tprintf("g_ino=%" PRIu64 ", ", dq.qs_gquota.qfs_ino);
tprintf("g_nblks=%" PRIu64 ", ", dq.qs_gquota.qfs_nblks);
tprintf("g_nextents=%u, ", dq.qs_gquota.qfs_nextents);
tprintf("btimelimit=%d, ", dq.qs_btimelimit);
tprintf("itimelimit=%d, ", dq.qs_itimelimit);
tprintf("rtbtimelimit=%d, ", dq.qs_rtbtimelimit);
tprintf("bwarnlimit=%u, ", dq.qs_bwarnlimit);
tprintf("iwarnlimit=%u}", dq.qs_iwarnlimit);
break;
}
case Q_XGETQSTATV:
{
struct fs_quota_statv dq;
if (entering(tcp))
return 0;
if (umove_or_printaddr(tcp, data, &dq))
break;
tprintf("{version=%d, ", dq.qs_version);
if (abbrev(tcp)) {
tprints("...}");
break;
}
tprints("flags=");
printflags(xfs_quota_flags,
dq.qs_flags, "XFS_QUOTA_???");
tprintf(", incoredqs=%u, ", dq.qs_incoredqs);
tprintf("u_ino=%" PRIu64 ", ", dq.qs_uquota.qfs_ino);
tprintf("u_nblks=%" PRIu64 ", ", dq.qs_uquota.qfs_nblks);
tprintf("u_nextents=%u, ", dq.qs_uquota.qfs_nextents);
tprintf("g_ino=%" PRIu64 ", ", dq.qs_gquota.qfs_ino);
tprintf("g_nblks=%" PRIu64 ", ", dq.qs_gquota.qfs_nblks);
tprintf("g_nextents=%u, ", dq.qs_gquota.qfs_nextents);
tprintf("p_ino=%" PRIu64 ", ", dq.qs_pquota.qfs_ino);
tprintf("p_nblks=%" PRIu64 ", ", dq.qs_pquota.qfs_nblks);
tprintf("p_nextents=%u, ", dq.qs_pquota.qfs_nextents);
tprintf("btimelimit=%d, ", dq.qs_btimelimit);
tprintf("itimelimit=%d, ", dq.qs_itimelimit);
tprintf("rtbtimelimit=%d, ", dq.qs_rtbtimelimit);
tprintf("bwarnlimit=%u, ", dq.qs_bwarnlimit);
tprintf("iwarnlimit=%u}", dq.qs_iwarnlimit);
break;
}
case Q_XQUOTAON:
case Q_XQUOTAOFF:
{
uint32_t flag;
if (umove_or_printaddr(tcp, data, &flag))
break;
tprints("[");
printflags(xfs_quota_flags, flag, "XFS_QUOTA_???");
tprints("]");
break;
}
default:
printaddr(data);
break;
}
return RVAL_DECODED;
}
SYS_FUNC(quotactl)
{
/*
* The Linux kernel only looks at the low 32 bits of command and id
* arguments, but on some 64-bit architectures (s390x) this word
* will have been sign-extended when we see it. The high 1 bits
* don't mean anything, so don't confuse the output with them.
*/
uint32_t qcmd = tcp->u_arg[0];
uint32_t cmd = QCMD_CMD(qcmd);
uint32_t type = QCMD_TYPE(qcmd);
uint32_t id = tcp->u_arg[2];
if (entering(tcp)) {
printxval(quotacmds, cmd, "Q_???");
tprints("|");
printxval(quotatypes, type, "???QUOTA");
tprints(", ");
printpath(tcp, tcp->u_arg[1]);
tprints(", ");
switch (cmd) {
case Q_QUOTAON:
case Q_V1_QUOTAON:
printxval(quota_formats, id, "QFMT_VFS_???");
tprints(", ");
printpath(tcp, tcp->u_arg[3]);
return RVAL_DECODED;
}
tprintf("%u, ", id);
}
return decode_cmd_data(tcp, cmd, tcp->u_arg[3]);
}
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