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Diffstat (limited to 'winsup/cygwin/quotactl.cc')
-rw-r--r--winsup/cygwin/quotactl.cc340
1 files changed, 0 insertions, 340 deletions
diff --git a/winsup/cygwin/quotactl.cc b/winsup/cygwin/quotactl.cc
deleted file mode 100644
index 96c6134e8..000000000
--- a/winsup/cygwin/quotactl.cc
+++ /dev/null
@@ -1,340 +0,0 @@
-/* quotactl.cc: code for manipulating disk quotas
-
- Copyright 2014 Red Hat, Inc.
-
-This file is part of Cygwin.
-
-This software is a copyrighted work licensed under the terms of the
-Cygwin license. Please consult the file "CYGWIN_LICENSE" for
-details. */
-
-#include "winsup.h"
-#include "cygtls.h"
-#include "security.h"
-#include "path.h"
-#include "fhandler.h"
-#include "dtable.h"
-#include "cygheap.h"
-#include "ntdll.h"
-#include "tls_pbuf.h"
-#include <sys/mount.h>
-#include <sys/quota.h>
-
-#define PGQI_SIZE (sizeof (FILE_GET_QUOTA_INFORMATION) + SECURITY_MAX_SID_SIZE)
-#define PFQI_SIZE (sizeof (FILE_QUOTA_INFORMATION) + SECURITY_MAX_SID_SIZE)
-
-/* Modelled after the Linux quotactl function. */
-extern "C" int
-quotactl (int cmd, const char *special, int id, caddr_t addr)
-{
- ACCESS_MASK access = FILE_READ_DATA;
- cygsid sid;
- path_conv pc;
- tmp_pathbuf tp;
- UNICODE_STRING path;
- OBJECT_ATTRIBUTES attr;
- NTSTATUS status;
- HANDLE fh;
- IO_STATUS_BLOCK io;
- FILE_FS_CONTROL_INFORMATION ffci;
- int ret = 0;
-
- uint32_t subcmd = (uint32_t) cmd >> SUBCMDSHIFT;
- uint32_t type = (uint32_t) cmd & SUBCMDMASK;
-
- if (type != USRQUOTA && type != GRPQUOTA)
- {
- set_errno (EINVAL);
- return -1;
- }
- switch (subcmd)
- {
- case Q_SYNC:
- if (!special)
- return 0;
- access |= FILE_WRITE_DATA;
- break;
- case Q_QUOTAON:
- if (id < QFMT_VFS_OLD || id > QFMT_VFS_V1)
- {
- set_errno (EINVAL);
- return -1;
- }
- /*FALLTHRU*/
- case Q_QUOTAOFF:
- case Q_SETINFO:
- access |= FILE_WRITE_DATA;
- break;
- case Q_GETFMT:
- case Q_GETINFO:
- break;
- case Q_SETQUOTA:
- access |= FILE_WRITE_DATA;
- /*FALLTHRU*/
- case Q_GETQUOTA:
- /* Windows feature: Default limits. Get or set them with id == -1. */
- if (id != -1)
- {
- struct passwd *pw = NULL;
- struct group *gr = NULL;
-
- if (type == USRQUOTA)
- pw = internal_getpwuid (id);
- else
- gr = internal_getgrgid (id);
- if (pw)
- sid.getfrompw (pw);
- else if (gr)
- sid.getfromgr (gr);
- else
- {
- set_errno (EINVAL);
- return -1;
- }
- }
- break;
- default:
- set_errno (EINVAL);
- return -1;
- }
- /* Check path */
- pc.check (special, PC_SYM_FOLLOW | PC_NOWARN, stat_suffixes);
- if (pc.error)
- {
- set_errno (pc.error);
- return -1;
- }
- if (!pc.exists ())
- {
- set_errno (ENOENT);
- return -1;
- }
- if (!S_ISBLK (pc.dev.mode))
- {
- set_errno (ENOTBLK);
- return -1;
- }
- pc.get_object_attr (attr, sec_none_nih);
- /* For the following functions to work, we must attach the virtual path to
- the quota file to the device path.
-
- FIXME: Note that this is NTFS-specific. Adding ReFS in another step. */
- tp.u_get (&path);
- RtlCopyUnicodeString (&path, attr.ObjectName);
- RtlAppendUnicodeToString (&path, L"\\$Extend\\$Quota:$Q:$INDEX_ALLOCATION");
- attr.ObjectName = &path;
-
- /* Open filesystem */
- status = NtOpenFile (&fh, access, &attr, &io, FILE_SHARE_VALID_FLAGS, 0);
- if (NT_SUCCESS (status))
- switch (subcmd)
- {
- case Q_SYNC:
- /* No sync, just report success. */
- status = STATUS_SUCCESS;
- break;
- case Q_QUOTAON:
- case Q_QUOTAOFF:
- /* Ignore filename in addr. */
- status = NtQueryVolumeInformationFile (fh, &io, &ffci, sizeof ffci,
- FileFsControlInformation);
- if (!NT_SUCCESS (status))
- break;
- ffci.FileSystemControlFlags &= ~FILE_VC_QUOTA_ENFORCE
- & ~FILE_VC_QUOTA_TRACK
- & ~FILE_VC_QUOTAS_INCOMPLETE
- & ~FILE_VC_QUOTAS_REBUILDING;
- if (subcmd == Q_QUOTAON)
- ffci.FileSystemControlFlags |= FILE_VC_QUOTA_ENFORCE;
- status = NtSetVolumeInformationFile (fh, &io, &ffci, sizeof ffci,
- FileFsControlInformation);
- break;
- case Q_GETFMT:
- __try
- {
- uint32_t *retval = (uint32_t *) addr;
-
- /* Always fake the latest format. */
- *retval = QFMT_VFS_V1;
- }
- __except (EFAULT)
- {
- ret = -1;
- break;
- }
- __endtry
- status = STATUS_SUCCESS;
- break;
- case Q_GETINFO:
- __try
- {
- struct dqinfo *dqi = (struct dqinfo *) addr;
-
- dqi->dqi_bgrace = dqi->dqi_igrace = UINT64_MAX;
- dqi->dqi_flags = 0;
- dqi->dqi_valid = IIF_BGRACE | IIF_IGRACE;
- }
- __except (EFAULT)
- {
- ret = -1;
- break;
- }
- __endtry
- status = STATUS_SUCCESS;
- break;
- case Q_SETINFO:
- /* No settings possible, just report success. */
- status = STATUS_SUCCESS;
- break;
- case Q_GETQUOTA:
- /* Windows feature: Default limits. Get or set them with id == -1. */
- if (id == -1)
- {
- status = NtQueryVolumeInformationFile (fh, &io, &ffci, sizeof ffci,
- FileFsControlInformation);
- if (!NT_SUCCESS (status))
- break;
- __try
- {
- struct dqblk *dq = (struct dqblk *) addr;
-
- dq->dqb_bhardlimit = (uint64_t) ffci.DefaultQuotaLimit.QuadPart;
- if (dq->dqb_bhardlimit != UINT64_MAX)
- dq->dqb_bhardlimit /= BLOCK_SIZE;
- dq->dqb_bsoftlimit =
- (uint64_t) ffci.DefaultQuotaThreshold.QuadPart;
- if (dq->dqb_bsoftlimit != UINT64_MAX)
- dq->dqb_bsoftlimit /= BLOCK_SIZE;
- dq->dqb_curspace = 0;
- dq->dqb_ihardlimit = UINT64_MAX;
- dq->dqb_isoftlimit = UINT64_MAX;
- dq->dqb_curinodes = 0;
- dq->dqb_btime = UINT64_MAX;
- dq->dqb_itime = UINT64_MAX;
- dq->dqb_valid = QIF_BLIMITS;
- }
- __except (EFAULT)
- {
- ret = -1;
- break;
- }
- __endtry
- }
- else
- {
- PFILE_GET_QUOTA_INFORMATION pgqi = (PFILE_GET_QUOTA_INFORMATION)
- alloca (PGQI_SIZE);
- PFILE_QUOTA_INFORMATION pfqi = (PFILE_QUOTA_INFORMATION)
- alloca (PFQI_SIZE);
-
- pgqi->NextEntryOffset = 0;
- pgqi->SidLength = RtlLengthSid (sid);
- RtlCopySid (RtlLengthSid (sid), &pgqi->Sid, sid);
- status = NtQueryQuotaInformationFile (fh, &io, pfqi, PFQI_SIZE,
- TRUE, pgqi, PGQI_SIZE,
- NULL, TRUE);
- if (!NT_SUCCESS (status))
- break;
- __try
- {
- struct dqblk *dq = (struct dqblk *) addr;
-
- dq->dqb_bhardlimit = (uint64_t) pfqi->QuotaLimit.QuadPart;
- if (dq->dqb_bhardlimit != UINT64_MAX)
- dq->dqb_bhardlimit /= BLOCK_SIZE;
- dq->dqb_bsoftlimit = (uint64_t) pfqi->QuotaThreshold.QuadPart;
- if (dq->dqb_bsoftlimit != UINT64_MAX)
- dq->dqb_bsoftlimit /= BLOCK_SIZE;
- dq->dqb_curspace = (uint64_t) pfqi->QuotaUsed.QuadPart;
- if (dq->dqb_curspace != UINT64_MAX)
- dq->dqb_curspace /= BLOCK_SIZE;
- dq->dqb_ihardlimit = UINT64_MAX;
- dq->dqb_isoftlimit = UINT64_MAX;
- dq->dqb_curinodes = 0;
- dq->dqb_btime = UINT64_MAX;
- dq->dqb_itime = UINT64_MAX;
- dq->dqb_valid = QIF_BLIMITS | QIF_SPACE;
- }
- __except (EFAULT)
- {
- ret = -1;
- break;
- }
- __endtry
- }
- break;
- case Q_SETQUOTA:
- /* Windows feature: Default limits. Get or set them with id == -1. */
- if (id == -1)
- {
- status = NtQueryVolumeInformationFile (fh, &io, &ffci, sizeof ffci,
- FileFsControlInformation);
- if (!NT_SUCCESS (status))
- break;
- __try
- {
- struct dqblk *dq = (struct dqblk *) addr;
-
- if (!(dq->dqb_valid & QIF_BLIMITS))
- break;
- ffci.DefaultQuotaLimit.QuadPart = dq->dqb_bhardlimit;
- if (ffci.DefaultQuotaLimit.QuadPart != -1)
- ffci.DefaultQuotaLimit.QuadPart *= BLOCK_SIZE;
- ffci.DefaultQuotaThreshold.QuadPart = dq->dqb_bsoftlimit;
- if (ffci.DefaultQuotaThreshold.QuadPart != -1)
- ffci.DefaultQuotaThreshold.QuadPart *= BLOCK_SIZE;
- }
- __except (EFAULT)
- {
- ret = -1;
- break;
- }
- __endtry
- status = NtSetVolumeInformationFile (fh, &io, &ffci, sizeof ffci,
- FileFsControlInformation);
- }
- else
- {
- PFILE_GET_QUOTA_INFORMATION pgqi = (PFILE_GET_QUOTA_INFORMATION)
- alloca (PGQI_SIZE);
- PFILE_QUOTA_INFORMATION pfqi = (PFILE_QUOTA_INFORMATION)
- alloca (PFQI_SIZE);
-
- pgqi->NextEntryOffset = 0;
- pgqi->SidLength = RtlLengthSid (sid);
- RtlCopySid (RtlLengthSid (sid), &pgqi->Sid, sid);
- status = NtQueryQuotaInformationFile (fh, &io, pfqi, PFQI_SIZE,
- TRUE, pgqi, PGQI_SIZE,
- NULL, TRUE);
- if (!NT_SUCCESS (status))
- break;
- __try
- {
- struct dqblk *dq = (struct dqblk *) addr;
-
- if (!(dq->dqb_valid & QIF_BLIMITS))
- break;
- pfqi->QuotaLimit.QuadPart = dq->dqb_bhardlimit;
- if (pfqi->QuotaLimit.QuadPart != -1)
- pfqi->QuotaLimit.QuadPart *= BLOCK_SIZE;
- pfqi->QuotaThreshold.QuadPart = dq->dqb_bsoftlimit;
- if (pfqi->QuotaThreshold.QuadPart != -1)
- pfqi->QuotaThreshold.QuadPart *= BLOCK_SIZE;
- }
- __except (EFAULT)
- {
- ret = -1;
- break;
- }
- __endtry
- status = NtSetQuotaInformationFile (fh, &io, pfqi, PFQI_SIZE);
- }
- break;
- }
- if (!NT_SUCCESS (status))
- {
- __seterrno_from_nt_status (status);
- ret = -1;
- }
- return ret;
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-26 17:26:18 +0300