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|
/*
* Check decoding of quotactl syscall.
*
* Copyright (c) 2016 Eugene Syromyatnikov <evgsyr@gmail.com>
* Copyright (c) 2016 Dmitry V. Levin <ldv@altlinux.org>
* Copyright (c) 2016-2018 The strace developers.
* All rights reserved.
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "tests.h"
#include <asm/unistd.h>
#if defined(__NR_quotactl) && \
(defined(HAVE_LINUX_QUOTA_H) || defined(HAVE_SYS_QUOTA_H))
# include <inttypes.h>
# include <stdint.h>
# include <stdio.h>
# include <string.h>
# include <unistd.h>
# include "quotactl.h"
# ifndef HAVE_LINUX_QUOTA_H
/* Some dirty hacks in order to make sys/quota.h usable as a backup */
# define if_dqblk dqblk
# define if_nextdqblk nextdqblk
# define if_dqinfo dqinfo
# endif /* !HAVE_LINUX_QUOTA_H */
# ifndef Q_GETNEXTQUOTA
# define Q_GETNEXTQUOTA 0x800009
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;
};
# endif /* !Q_GETNEXTQUOTA */
# include "xlat.h"
# include "xlat/quota_formats.h"
# include "xlat/if_dqblk_valid.h"
# include "xlat/if_dqinfo_flags.h"
# include "xlat/if_dqinfo_valid.h"
#define QUOTA_STR(_arg) (_arg), gen_quotacmd(#_arg, _arg)
#define QUOTA_ID_STR(_arg) (_arg), gen_quotaid(#_arg, _arg)
#define QUOTA_STR_INVALID(_arg, str) (_arg), gen_quotacmd(str, _arg)
void
print_dqblk(long rc, void *ptr, void *arg)
{
struct if_dqblk *db = ptr;
long out_arg = (long) arg;
if (((rc < 0) && out_arg) || (out_arg > 1)) {
printf("%p", db);
return;
}
PRINT_FIELD_U("{", *db, dqb_bhardlimit);
PRINT_FIELD_U(", ", *db, dqb_bsoftlimit);
PRINT_FIELD_U(", ", *db, dqb_curspace);
PRINT_FIELD_U(", ", *db, dqb_ihardlimit);
PRINT_FIELD_U(", ", *db, dqb_isoftlimit);
PRINT_FIELD_U(", ", *db, dqb_curinodes);
# if VERBOSE
PRINT_FIELD_U(", ", *db, dqb_btime);
PRINT_FIELD_U(", ", *db, dqb_itime);
printf(", dqb_valid=");
printflags(if_dqblk_valid, db->dqb_valid, "QIF_???");
# else
printf(", ...");
# endif /* !VERBOSE */
printf("}");
}
void
print_nextdqblk(long rc, void *ptr, void *arg)
{
struct if_nextdqblk *db = ptr;
long out_arg = (long) arg;
if (((rc < 0) && out_arg) || (out_arg > 1)) {
printf("%p", db);
return;
}
PRINT_FIELD_U("{", *db, dqb_bhardlimit);
PRINT_FIELD_U(", ", *db, dqb_bsoftlimit);
PRINT_FIELD_U(", ", *db, dqb_curspace);
PRINT_FIELD_U(", ", *db, dqb_ihardlimit);
PRINT_FIELD_U(", ", *db, dqb_isoftlimit);
PRINT_FIELD_U(", ", *db, dqb_curinodes);
# if VERBOSE
PRINT_FIELD_U(", ", *db, dqb_btime);
PRINT_FIELD_U(", ", *db, dqb_itime);
printf(", dqb_valid=");
printflags(if_dqblk_valid, db->dqb_valid, "QIF_???");
PRINT_FIELD_U(", ", *db, dqb_id);
# else
PRINT_FIELD_U(", ", *db, dqb_id);
printf(", ...");
# endif /* !VERBOSE */
printf("}");
}
void
print_dqinfo(long rc, void *ptr, void *arg)
{
struct if_dqinfo *di = ptr;
long out_arg = (long) arg;
if (((rc < 0) && out_arg) || (out_arg > 1)) {
printf("%p", di);
return;
}
PRINT_FIELD_U("{", *di, dqi_bgrace);
PRINT_FIELD_U(", ", *di, dqi_igrace);
printf(", dqi_flags=");
#if XLAT_RAW
printf("%#x", di->dqi_flags);
#elif XLAT_VERBOSE
printf("%#x /* ", di->dqi_flags);
printflags(if_dqinfo_flags, di->dqi_flags, "DQF_???");
printf(" */");
#else /* XLAT_ABBREV */
printflags(if_dqinfo_flags, di->dqi_flags, "DQF_???");
#endif
printf(", dqi_valid=");
#if XLAT_RAW
printf("%#x", di->dqi_valid);
#elif XLAT_VERBOSE
printf("%#x /* ", di->dqi_valid);
printflags(if_dqinfo_valid, di->dqi_valid, "IIF_???");
printf(" */");
#else /* XLAT_ABBREV */
printflags(if_dqinfo_valid, di->dqi_valid, "IIF_???");
#endif
printf("}");
}
void
print_dqfmt(long rc, void *ptr, void *arg)
{
uint32_t *fmtval = ptr;
long out_arg = (long) arg;
const char *fmtstr;
if (((rc < 0) && out_arg) || (out_arg > 1)) {
printf("%p", fmtval);
return;
}
printf("[");
#if XLAT_RAW
printf("%#x]", *fmtval);
return;
#else
switch (*fmtval) {
case 1:
fmtstr = "QFMT_VFS_OLD";
break;
case 2:
fmtstr = "QFMT_VFS_V0";
break;
case 3:
fmtstr = "QFMT_OCFS2";
break;
case 4:
fmtstr = "QFMT_VFS_V1";
break;
default:
printf("%#x /* QFMT_VFS_??? */]", *fmtval);
return;
}
#endif
#if XLAT_VERBOSE
printf("%#x /* %s */]", *fmtval, fmtstr);
#else
printf("%s]", fmtstr);
#endif
}
const char *
gen_quotacmd(const char *abbrev_str, const uint32_t cmd)
{
static char quotacmd_str[2048];
#if XLAT_RAW
snprintf(quotacmd_str, sizeof(quotacmd_str), "%u", cmd);
#elif XLAT_VERBOSE
snprintf(quotacmd_str, sizeof(quotacmd_str), "%u /* %s */", cmd, abbrev_str);
#else
return abbrev_str;
#endif
return quotacmd_str;
}
const char *
gen_quotaid(const char *abbrev_str, const uint32_t id)
{
static char quotaid_str[1024];
#if XLAT_RAW
snprintf(quotaid_str, sizeof(quotaid_str), "%#x", id);
#elif XLAT_VERBOSE
snprintf(quotaid_str, sizeof(quotaid_str), "%#x /* %s */", id, abbrev_str);
#else
return abbrev_str;
#endif
return quotaid_str;
}
int
main(void)
{
char *bogus_special = (char *) tail_alloc(1) + 1;
void *bogus_addr = (char *) tail_alloc(1) + 1;
char bogus_special_str[sizeof(void *) * 2 + sizeof("0x")];
char unterminated_str[sizeof(void *) * 2 + sizeof("0x")];
static char invalid_cmd_str[1024];
static char invalid_id_str[1024];
char *unterminated = tail_memdup(unterminated_data,
sizeof(unterminated_data));
TAIL_ALLOC_OBJECT_CONST_PTR(struct if_dqblk, dqblk);
TAIL_ALLOC_OBJECT_CONST_PTR(struct if_dqinfo, dqinfo);
TAIL_ALLOC_OBJECT_CONST_PTR(uint32_t, fmt);
TAIL_ALLOC_OBJECT_CONST_PTR(struct if_nextdqblk, nextdqblk);
snprintf(bogus_special_str, sizeof(bogus_special_str), "%p",
bogus_special);
snprintf(unterminated_str, sizeof(unterminated_str), "%p",
unterminated);
/* Invalid commands */
snprintf(invalid_cmd_str, sizeof(invalid_cmd_str),
"QCMD(%#x /* Q_??? */, %#x /* ???QUOTA */)",
QCMD_CMD(bogus_cmd), QCMD_TYPE(bogus_cmd));
check_quota(CQF_NONE, bogus_cmd, gen_quotacmd(invalid_cmd_str, bogus_cmd),
bogus_special, bogus_special_str, bogus_id, bogus_addr);
snprintf(invalid_cmd_str, sizeof(invalid_cmd_str),
"QCMD(0 /* Q_??? */, USRQUOTA)");
check_quota(CQF_ADDR_STR, 0, gen_quotacmd(invalid_cmd_str, 0),
ARG_STR(NULL), -1, ARG_STR(NULL));
/* Q_QUOTAON */
check_quota(CQF_ID_STR | CQF_ADDR_STR,
QUOTA_STR(QCMD(Q_QUOTAON, USRQUOTA)),
ARG_STR("/dev/bogus/"), QUOTA_ID_STR(QFMT_VFS_OLD),
ARG_STR("/tmp/bogus/"));
snprintf(invalid_cmd_str, sizeof(invalid_cmd_str),
"QCMD(Q_QUOTAON, %#x /* ???QUOTA */)",
QCMD_TYPE(QCMD(Q_QUOTAON, 0xfacefeed)));
#if XLAT_RAW
snprintf(invalid_id_str, sizeof(invalid_id_str),
"%#x", bogus_id);
#else
snprintf(invalid_id_str, sizeof(invalid_id_str),
"%#x /* QFMT_VFS_??? */", bogus_id);
#endif
check_quota(CQF_ID_STR, QCMD(Q_QUOTAON, 0xfacefeed),
gen_quotacmd(invalid_cmd_str, QCMD(Q_QUOTAON, 0xfacefeed)),
bogus_dev, bogus_dev_str,
bogus_id, invalid_id_str, bogus_addr);
/* Q_QUOTAOFF */
check_quota(CQF_ID_SKIP | CQF_ADDR_SKIP,
QUOTA_STR(QCMD(Q_QUOTAOFF, USRQUOTA)),
bogus_special, bogus_special_str);
check_quota(CQF_ID_SKIP | CQF_ADDR_SKIP,
QUOTA_STR(QCMD(Q_QUOTAOFF, GRPQUOTA)),
ARG_STR("/dev/bogus/"));
check_quota(CQF_ID_SKIP | CQF_ADDR_SKIP,
QUOTA_STR(QCMD(Q_QUOTAOFF, PRJQUOTA)), ARG_STR(NULL));
const char *cmd_str = "QCMD(Q_QUOTAOFF, 0x3 /* ???QUOTA */)";
check_quota(CQF_ID_SKIP | CQF_ADDR_SKIP,
QUOTA_STR_INVALID(QCMD(Q_QUOTAOFF, 3), cmd_str),
ARG_STR(NULL));
/* Q_GETQUOTA */
/* Trying our best to get successful result */
check_quota(CQF_ADDR_CB, QUOTA_STR(QCMD(Q_GETQUOTA, USRQUOTA)),
ARG_STR("/dev/sda1"), getuid(), dqblk, print_dqblk,
(intptr_t) 1);
check_quota(CQF_ADDR_CB, QUOTA_STR(QCMD(Q_GETQUOTA, GRPQUOTA)),
ARG_STR(NULL), -1, dqblk, print_dqblk, (intptr_t) 1);
/* Q_GETNEXTQUOTA */
check_quota(CQF_ADDR_CB, QUOTA_STR(QCMD(Q_GETNEXTQUOTA, USRQUOTA)),
ARG_STR("/dev/sda1"), 0, nextdqblk, print_nextdqblk,
(intptr_t) 1);
/* Q_SETQUOTA */
fill_memory(dqblk, sizeof(*dqblk));
check_quota(CQF_NONE, QUOTA_STR(QCMD(Q_SETQUOTA, PRJQUOTA)),
bogus_special, bogus_special_str, 0, bogus_addr);
check_quota(CQF_ADDR_CB, QUOTA_STR(QCMD(Q_SETQUOTA, PRJQUOTA)),
ARG_STR("/dev/bogus/"), 3141592653U, dqblk, print_dqblk,
(intptr_t) 0);
/* Q_GETINFO */
check_quota(CQF_ID_SKIP | CQF_ADDR_CB,
QUOTA_STR(QCMD(Q_GETINFO, GRPQUOTA)),
ARG_STR("/dev/sda1"), dqinfo, print_dqinfo, (intptr_t) 1);
check_quota(CQF_ID_SKIP | CQF_ADDR_CB,
QUOTA_STR(QCMD(Q_GETINFO, GRPQUOTA)),
bogus_special, bogus_special_str, dqinfo,
print_dqinfo, (intptr_t) 1);
/* Q_SETINFO */
fill_memory(dqinfo, sizeof(*dqinfo));
/* In order to check flag printing correctness */
dqinfo->dqi_flags = 0xdeadabcd;
check_quota(CQF_ID_SKIP | CQF_ADDR_STR,
QUOTA_STR(QCMD(Q_SETINFO, PRJQUOTA)),
bogus_special, bogus_special_str, ARG_STR(NULL));
check_quota(CQF_ID_SKIP | CQF_ADDR_CB,
QUOTA_STR(QCMD(Q_SETINFO, USRQUOTA)),
ARG_STR("/dev/bogus/"), dqinfo, print_dqinfo, (intptr_t) 0);
/* Q_GETFMT */
check_quota(CQF_ID_SKIP | CQF_ADDR_STR,
QUOTA_STR(QCMD(Q_GETFMT, PRJQUOTA)),
bogus_special, bogus_special_str, ARG_STR(NULL));
check_quota(CQF_ID_SKIP,
QUOTA_STR(QCMD(Q_GETFMT, USRQUOTA)),
unterminated, unterminated_str, fmt + 1);
check_quota(CQF_ID_SKIP | CQF_ADDR_CB,
QUOTA_STR(QCMD(Q_GETFMT, GRPQUOTA)),
ARG_STR("/dev/sda1"), fmt, print_dqfmt, (uintptr_t) 1);
/* Try to check valid quota format */
*fmt = QFMT_VFS_OLD;
check_quota(CQF_ID_SKIP | CQF_ADDR_CB,
QUOTA_STR(QCMD(Q_GETFMT, GRPQUOTA)),
ARG_STR("/dev/sda1"), fmt, print_dqfmt, (uintptr_t) 1);
/* Q_SYNC */
check_quota(CQF_ID_SKIP | CQF_ADDR_SKIP,
QUOTA_STR(QCMD(Q_SYNC, USRQUOTA)),
bogus_special, bogus_special_str);
cmd_str = "QCMD(Q_SYNC, 0xff /* ???QUOTA */)";
check_quota(CQF_ID_SKIP | CQF_ADDR_SKIP,
QUOTA_STR_INVALID(QCMD(Q_SYNC, 0xfff), cmd_str),
ARG_STR(NULL));
puts("+++ exited with 0 +++");
return 0;
}
#else
SKIP_MAIN_UNDEFINED("__NR_quotactl && "
"(HAVE_LINUX_QUOTA_H || HAVE_SYS_QUOTA_H)");
#endif
|
