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237 lines
8.5 KiB
237 lines
8.5 KiB
/*
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* Common definitions for Linux and XFS quota tests.
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*
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* Copyright (c) 2016 Eugene Syromyatnikov <evgsyr@gmail.com>
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* Copyright (c) 2016 Dmitry V. Levin <ldv@altlinux.org>
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* Copyright (c) 2016-2018 The strace developers.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef STRACE_TESTS_QUOTACTL_H
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#define STRACE_TESTS_QUOTACTL_H
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# include <inttypes.h>
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# include <stdarg.h>
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# include <stdio.h>
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# include "print_fields.h"
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# ifdef HAVE_LINUX_QUOTA_H
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/* Broken in CentOS 5: has extern spinlock_t dq_data_lock; declaration */
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# include <linux/quota.h>
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# else
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# include <linux/types.h>
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/* Broken in some new glibc versions: have Q_GETNEXTQUOTA definition but no
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* struct nextdqblk defined. Fixed in glibc-2.24-106-g4d72808. */
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# include <sys/quota.h>
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# endif
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# ifndef QCMD_CMD
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# define QCMD_CMD(_val) ((unsigned) (_val) >> SUBCMDSHIFT)
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# endif /* !QCMD_CMD */
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# ifndef QCMD_TYPE
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# define QCMD_TYPE(_val) ((unsigned) (_val) & SUBCMDMASK)
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# endif /* !QCMD_TYPE */
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# ifndef PRJQUOTA
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# define PRJQUOTA 2
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# endif
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typedef void (*print_cb)(long rc, void *addr, void *arg);
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enum check_quotactl_flag_bits {
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CQF_ID_SKIP_BIT,
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CQF_ID_STR_BIT,
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CQF_ADDR_SKIP_BIT,
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CQF_ADDR_STR_BIT,
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CQF_ADDR_CB_BIT,
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};
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enum check_quotactl_flags {
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CQF_NONE,
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CQF_ID_SKIP = 1 << CQF_ID_SKIP_BIT,
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CQF_ID_STR = 1 << CQF_ID_STR_BIT,
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CQF_ADDR_SKIP = 1 << CQF_ADDR_SKIP_BIT,
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CQF_ADDR_STR = 1 << CQF_ADDR_STR_BIT,
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CQF_ADDR_CB = 1 << CQF_ADDR_CB_BIT,
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};
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static const char *errstr;
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/**
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* Generic quotactl syscall checker function. Call convention:
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*
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* check_quota(flags, cmd, cmd_str, special, special_str
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* [, id [, id_str]]
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* [, addr [, { addr_cb, addr_cb_arg | addr_str }]])
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*
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* check_quota performs a syscall invocation and prints the expected output
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* for it.
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*
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* It might be useful to employ ARG_STR macro for passing cmd/cmd_str,
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* special_special_str, id/id_str, and addr/addr_str argument pairs.
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*
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* @param flags Check flags:
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* - CQF_ID_SKIP: the "id" syscall argument is ignored
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* in the syscall invocation. No id and id_str arguments
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* should be provided if this flag is set.
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* This flag has priority over the CQF_ID_STR flag.
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* - CQF_ID_STR: the "id" syscall argument has a special string
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* representation. id_str argument should be provided if this
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* flag is set; no id_str argument should be provided and id
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* argument is printed as unsigned integer (with an exception
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* for -1, which is printed as signed) if this flag is not set.
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* - CQF_ADDR_SKIP: the "addr" syscall argument is ignored
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* in the syscall invocation. None of the addr, addr_cb,
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* addr_cb_arg, and/or addr_str arguments should be provided
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* if this flag is set. This flag has priority
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* over the CQF_ADDR_STR and CQF_ADDR_CB flags.
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* - CQF_ADDR_CB: the "addr" syscall argument printing is handled
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* via a callback function. addr_cb (that points to a callback
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* function of type print_cb) and addr_cb_arg (an opaque pointer
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* that is passed to addr_cb in the third argument) should
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* be provided if this flag is set.
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* This flag has priority over the CQF_ADDR_STR flag.
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* - CQF_ADDR_STR: addr syscall argument has a special string
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* representation. addr_str argument should be provided if this
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* flag is set. If both CQF_ADDR_CB and CQF_ADDR_STR flags
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* are not set, addr syscall argument is printed using "%p"
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* printf format.
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* @param cmd Value of the "cmd" syscall argument that should be passed
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* in the syscall invocation.
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* @param cmd_str String representation of the "cmd" syscall argument.
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* @param special Value of the "special" syscall argument that should be passed
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* in the syscall invocation.
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* @param special_str String representation of the "special" syscall argument.
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* @param ... Additional arguments depend on the flags being set:
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* - id: Value of the "id" syscall argument. Provided
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* if CQF_ID_SKIP is not set, otherwise -1 is passed
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* in the syscall invocation and the argument is not printed
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* in the expected output.
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* - id_str: String representation of the "id" syscall argument.
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* Provided if CQF_ID_SKIP is not set and CQF_ID_STR is set.
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* - addr: Value of the "addr" syscall argument. Provided
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* if CQF_ADDR_SKIP is not set, otherwise NULL is passed
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* in the syscall invocation and the argument is not printed
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* in the expected output.
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* - addr_cb: Callback function that is called for the "addr"
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* syscall argument printing. Should be of print_cb type.
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* Provided if CQF_ADDR_SKIP is not set and CQF_ADDR_CB is set.
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* - addr_cb_arg: Opaque pointer that is passed to addr_cb,
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* Provided if CQF_ADDR_SKIP is not set and CQF_ADDR_CB is set.
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* - addr_str: String representation of the "addr" syscall argument.
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* Provided if CQF_ADDR_SKIP is not set, CQF_ADDR_CB is not set,
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* and CQF_ADDR_STR is set.
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*/
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static inline void
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check_quota(uint32_t flags, int cmd, const char *cmd_str,
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const char *special, const char *special_str, ...)
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{
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long rc;
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const char *addr_str = NULL;
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const char *id_str = NULL;
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void *addr = NULL;
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print_cb addr_cb = NULL;
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void *addr_cb_arg = NULL;
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uint32_t id = -1;
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va_list ap;
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va_start(ap, special_str);
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if (!(flags & CQF_ID_SKIP)) {
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id = va_arg(ap, uint32_t);
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if (flags & CQF_ID_STR)
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id_str = va_arg(ap, const char *);
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}
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if (!(flags & CQF_ADDR_SKIP)) {
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addr = va_arg(ap, void *);
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if (flags & CQF_ADDR_CB) {
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addr_cb = va_arg(ap, print_cb);
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addr_cb_arg = va_arg(ap, void *);
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} else if (flags & CQF_ADDR_STR) {
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addr_str = va_arg(ap, const char *);
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}
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}
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va_end(ap);
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rc = syscall(__NR_quotactl, cmd, special, id, addr);
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errstr = sprintrc(rc);
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#ifdef INJECT_RETVAL
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if (rc != INJECT_RETVAL)
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error_msg_and_fail("Got a return value of %ld != %d",
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rc, INJECT_RETVAL);
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static char inj_errstr[4096];
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snprintf(inj_errstr, sizeof(inj_errstr), "%s (INJECTED)", errstr);
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errstr = inj_errstr;
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#endif
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printf("quotactl(%s, %s", cmd_str, special_str);
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if (!(flags & CQF_ID_SKIP)) {
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if (flags & CQF_ID_STR) {
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printf(", %s", id_str);
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} else {
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if (id == (uint32_t)-1)
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printf(", -1");
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else
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printf(", %u", id);
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}
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}
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if (!(flags & CQF_ADDR_SKIP)) {
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if (flags & CQF_ADDR_CB) {
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printf(", ");
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addr_cb(rc, addr, addr_cb_arg);
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} else if (flags & CQF_ADDR_STR) {
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printf(", %s", addr_str);
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} else {
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printf(", %p", addr);
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}
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}
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printf(") = %s\n", errstr);
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}
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static const int bogus_cmd = 0xbadc0ded;
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static const int bogus_id = 0xca7faced;
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/* It is invalid anyway due to the slash in the end */
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static const char *bogus_dev = "/dev/bogus/";
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static const char *bogus_dev_str = "\"/dev/bogus/\"";
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static const char unterminated_data[] = { '\1', '\2', '\3' };
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#endif /* !STRACE_TESTS_QUOTACTL_H */
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