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strace/quota.c
Shankara Pailoor 1448070a00 quotactl: add xlat styles support 
* quota.c (print_qcmd): New function.
(SYS_FUNC(quotactl)): Use it to print the quotactl command.
* tests/quotactl.c (print_dqinfo, print_dqfmt): Handle XLAT_RAW
and XLAT_VERBOSE.
(QUOTA_STR, QUOTA_ID_STR, QUOTA_STR_INVALID): New macros.
(gen_quotacmd, gen_quotaid): New functions.
(main): Use them.
* tests/quotactl-Xabbrev.c: New file.
* tests/quotactl-Xraw.c: Likewise.
* tests/quotactl-Xverbose.c: Likewise.
* tests/gen_tests.in (quotactl-Xabbrev, quotactl-Xraw,
quotactl-Xverbose): New tests.
* tests/pure_executables.list: Add quotactl-Xabbrev, quotactl-Xraw,
and quotactl-Xverbose.
* tests/.gitignore: Likewise.

Co-Authored-by: Dmitry V. Levin <ldv@altlinux.org>
2018-12-24 10:19:24 +00:00

441 lines
11 KiB
C
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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>
* Copyright (c) 2006-2018 The strace developers.
* All rights reserved.
*
* SPDX-License-Identifier: LGPL-2.1-or-later
*/
#include "defs.h"
#include "print_fields.h"
#include "xfs_quota_stat.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"
/*
* We add attribute packed due to the fact that the structure is 8-byte aligned
* on 64-bit systems and therefore has additional 4 bytes of padding, which
* leads to problems when it is used on 32-bit tracee which does not have such
* padding.
*/
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;
} ATTRIBUTE_PACKED;
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 xfs_dqblk {
int8_t d_version; /* version of this structure */
uint8_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 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 id, uint32_t cmd, kernel_ulong_t data)
{
switch (cmd) {
case Q_QUOTAOFF:
case Q_SYNC:
case Q_XQUOTASYNC:
break;
case Q_QUOTAON:
tprints(", ");
printxval(quota_formats, id, "QFMT_VFS_???");
tprints(", ");
printpath(tcp, data);
break;
case Q_GETQUOTA:
if (entering(tcp)) {
printuid(", ", id);
tprints(", ");
return 0;
}
ATTRIBUTE_FALLTHROUGH;
case Q_SETQUOTA:
{
struct if_dqblk dq;
if (entering(tcp)) {
printuid(", ", id);
tprints(", ");
}
if (umove_or_printaddr(tcp, data, &dq))
break;
PRINT_FIELD_U("{", dq, dqb_bhardlimit);
PRINT_FIELD_U(", ", dq, dqb_bsoftlimit);
PRINT_FIELD_U(", ", dq, dqb_curspace);
PRINT_FIELD_U(", ", dq, dqb_ihardlimit);
PRINT_FIELD_U(", ", dq, dqb_isoftlimit);
PRINT_FIELD_U(", ", dq, dqb_curinodes);
if (!abbrev(tcp)) {
PRINT_FIELD_U(", ", dq, dqb_btime);
PRINT_FIELD_U(", ", dq, dqb_itime);
PRINT_FIELD_FLAGS(", ", dq, dqb_valid,
if_dqblk_valid, "QIF_???");
} else {
tprints(", ...");
}
tprints("}");
break;
}
case Q_GETNEXTQUOTA:
{
struct if_nextdqblk dq;
if (entering(tcp)) {
printuid(", ", id);
tprints(", ");
return 0;
}
if (umove_or_printaddr(tcp, data, &dq))
break;
PRINT_FIELD_U("{", dq, dqb_bhardlimit);
PRINT_FIELD_U(", ", dq, dqb_bsoftlimit);
PRINT_FIELD_U(", ", dq, dqb_curspace);
PRINT_FIELD_U(", ", dq, dqb_ihardlimit);
PRINT_FIELD_U(", ", dq, dqb_isoftlimit);
PRINT_FIELD_U(", ", dq, dqb_curinodes);
if (!abbrev(tcp)) {
PRINT_FIELD_U(", ", dq, dqb_btime);
PRINT_FIELD_U(", ", dq, dqb_itime);
PRINT_FIELD_FLAGS(", ", dq, dqb_valid,
if_dqblk_valid, "QIF_???");
PRINT_FIELD_U(", ", dq, dqb_id);
} else {
PRINT_FIELD_U(", ", dq, dqb_id);
tprints(", ...");
}
tprints("}");
break;
}
case Q_XGETQUOTA:
case Q_XGETNEXTQUOTA:
if (entering(tcp)) {
printuid(", ", id);
tprints(", ");
return 0;
}
ATTRIBUTE_FALLTHROUGH;
case Q_XSETQLIM:
{
struct xfs_dqblk dq;
if (entering(tcp)) {
printuid(", ", id);
tprints(", ");
}
if (umove_or_printaddr(tcp, data, &dq))
break;
PRINT_FIELD_D("{", dq, d_version);
PRINT_FIELD_FLAGS(", ", dq, d_flags,
xfs_dqblk_flags, "XFS_???_QUOTA");
PRINT_FIELD_X(", ", dq, d_fieldmask);
PRINT_FIELD_U(", ", dq, d_id);
PRINT_FIELD_U(", ", dq, d_blk_hardlimit);
PRINT_FIELD_U(", ", dq, d_blk_softlimit);
PRINT_FIELD_U(", ", dq, d_ino_hardlimit);
PRINT_FIELD_U(", ", dq, d_ino_softlimit);
PRINT_FIELD_U(", ", dq, d_bcount);
PRINT_FIELD_U(", ", dq, d_icount);
if (!abbrev(tcp)) {
PRINT_FIELD_D(", ", dq, d_itimer);
PRINT_FIELD_D(", ", dq, d_btimer);
PRINT_FIELD_U(", ", dq, d_iwarns);
PRINT_FIELD_U(", ", dq, d_bwarns);
PRINT_FIELD_U(", ", dq, d_rtb_hardlimit);
PRINT_FIELD_U(", ", dq, d_rtb_softlimit);
PRINT_FIELD_U(", ", dq, d_rtbcount);
PRINT_FIELD_D(", ", dq, d_rtbtimer);
PRINT_FIELD_U(", ", dq, d_rtbwarns);
} else {
tprints(", ...");
}
tprints("}");
break;
}
case Q_GETFMT:
{
uint32_t fmt;
if (entering(tcp)) {
tprints(", ");
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)) {
tprints(", ");
return 0;
}
ATTRIBUTE_FALLTHROUGH;
case Q_SETINFO:
{
struct if_dqinfo dq;
if (entering(tcp))
tprints(", ");
if (umove_or_printaddr(tcp, data, &dq))
break;
PRINT_FIELD_U("{", dq, dqi_bgrace);
PRINT_FIELD_U(", ", dq, dqi_igrace);
PRINT_FIELD_FLAGS(", ", dq, dqi_flags, if_dqinfo_flags, "DQF_???");
PRINT_FIELD_FLAGS(", ", dq, dqi_valid, if_dqinfo_valid, "IIF_???");
tprints("}");
break;
}
case Q_XGETQSTAT:
{
struct xfs_dqstats dq;
if (entering(tcp)) {
tprints(", ");
return 0;
}
if (fetch_struct_quotastat(tcp, data, &dq)) {
PRINT_FIELD_D("{", dq, qs_version);
if (!abbrev(tcp)) {
PRINT_FIELD_FLAGS(", ", dq, qs_flags,
xfs_quota_flags, "XFS_QUOTA_???");
PRINT_FIELD_U(", qs_uquota={", dq.qs_uquota, qfs_ino);
PRINT_FIELD_U(", ", dq.qs_uquota, qfs_nblks);
PRINT_FIELD_U(", ", dq.qs_uquota, qfs_nextents);
PRINT_FIELD_U("}, qs_gquota={", dq.qs_gquota, qfs_ino);
PRINT_FIELD_U(", ", dq.qs_gquota, qfs_nblks);
PRINT_FIELD_U(", ", dq.qs_gquota, qfs_nextents);
PRINT_FIELD_U("}, ", dq, qs_incoredqs);
PRINT_FIELD_D(", ", dq, qs_btimelimit);
PRINT_FIELD_D(", ", dq, qs_itimelimit);
PRINT_FIELD_D(", ", dq, qs_rtbtimelimit);
PRINT_FIELD_U(", ", dq, qs_bwarnlimit);
PRINT_FIELD_U(", ", dq, qs_iwarnlimit);
} else {
tprints(", ...");
}
tprints("}");
}
break;
}
case Q_XGETQSTATV:
{
struct fs_quota_statv dq;
if (entering(tcp)) {
tprints(", ");
return 0;
}
if (umove_or_printaddr(tcp, data, &dq))
break;
PRINT_FIELD_D("{", dq, qs_version);
if (!abbrev(tcp)) {
PRINT_FIELD_FLAGS(", ", dq, qs_flags,
xfs_quota_flags, "XFS_QUOTA_???");
PRINT_FIELD_U(", ", dq, qs_incoredqs);
PRINT_FIELD_U(", qs_uquota={", dq.qs_uquota, qfs_ino);
PRINT_FIELD_U(", ", dq.qs_uquota, qfs_nblks);
PRINT_FIELD_U(", ", dq.qs_uquota, qfs_nextents);
PRINT_FIELD_U("}, qs_gquota={", dq.qs_gquota, qfs_ino);
PRINT_FIELD_U(", ", dq.qs_gquota, qfs_nblks);
PRINT_FIELD_U(", ", dq.qs_gquota, qfs_nextents);
PRINT_FIELD_U("}, qs_pquota={", dq.qs_pquota, qfs_ino);
PRINT_FIELD_U(", ", dq.qs_pquota, qfs_nblks);
PRINT_FIELD_U(", ", dq.qs_pquota, qfs_nextents);
PRINT_FIELD_D("}, ", dq, qs_btimelimit);
PRINT_FIELD_D(", ", dq, qs_itimelimit);
PRINT_FIELD_D(", ", dq, qs_rtbtimelimit);
PRINT_FIELD_U(", ", dq, qs_bwarnlimit);
PRINT_FIELD_U(", ", dq, qs_iwarnlimit);
} else {
tprints(", ...");
}
tprints("}");
break;
}
case Q_XQUOTAON:
case Q_XQUOTAOFF:
{
uint32_t flag;
tprints(", ");
if (umove_or_printaddr(tcp, data, &flag))
break;
tprints("[");
printflags(xfs_quota_flags, flag, "XFS_QUOTA_???");
tprints("]");
break;
}
case Q_XQUOTARM:
{
uint32_t flag;
tprints(", ");
if (umove_or_printaddr(tcp, data, &flag))
break;
tprints("[");
printflags(xfs_dqblk_flags, flag, "XFS_???_QUOTA");
tprints("]");
break;
}
default:
printuid(", ", id);
tprints(", ");
printaddr(data);
break;
}
return RVAL_DECODED;
}
static void
print_qcmd(const uint32_t qcmd)
{
const uint32_t cmd = QCMD_CMD(qcmd);
const uint32_t type = QCMD_TYPE(qcmd);
if (xlat_verbose(xlat_verbosity) != XLAT_STYLE_ABBREV)
tprintf("%u", qcmd);
if (xlat_verbose(xlat_verbosity) == XLAT_STYLE_RAW)
return;
if (xlat_verbose(xlat_verbosity) == XLAT_STYLE_VERBOSE)
tprints(" /* ");
tprints("QCMD(");
printxvals_ex(cmd, "Q_???", XLAT_STYLE_ABBREV, quotacmds, NULL);
tprints(", ");
printxvals_ex(type, "???QUOTA", XLAT_STYLE_ABBREV, quotatypes, NULL);
tprints(")");
if (xlat_verbose(xlat_verbosity) == XLAT_STYLE_VERBOSE)
tprints(" */");
}
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 id = tcp->u_arg[2];
if (entering(tcp)) {
print_qcmd(qcmd);
tprints(", ");
printpath(tcp, tcp->u_arg[1]);
}
return decode_cmd_data(tcp, id, cmd, tcp->u_arg[3]);
}
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