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-rw-r--r--source/smbd/quotas.c1098
1 files changed, 1098 insertions, 0 deletions
diff --git a/source/smbd/quotas.c b/source/smbd/quotas.c
new file mode 100644
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--- /dev/null
+++ b/source/smbd/quotas.c
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+/*
+ Unix SMB/Netbios implementation.
+ Version 1.9.
+ support for quotas
+ Copyright (C) Andrew Tridgell 1992-1998
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+
+/*
+ * This is one of the most system dependent parts of Samba, and its
+ * done a litle differently. Each system has its own way of doing
+ * things :-(
+ */
+
+#include "includes.h"
+
+#if defined(VXFS_QUOTA)
+
+/*
+ * In addition to their native filesystems, some systems have Veritas VxFS.
+ * Declare here, define at end: reduces likely "include" interaction problems.
+ * David Lee <T.D.Lee@durham.ac.uk>
+ */
+BOOL disk_quotas_vxfs(const pstring name, char *path, SMB_BIG_UINT *bsize, SMB_BIG_UINT *dfree, SMB_BIG_UINT *dsize);
+
+#endif /* VXFS_QUOTA */
+
+#ifdef LINUX
+
+#include <sys/types.h>
+#include <asm/types.h>
+
+/*
+ * This shouldn't be neccessary - it should be /usr/include/sys/quota.h
+ * Unfortunately, RH7.1 ships with a different quota system using struct mem_dqblk
+ * rather than the struct dqblk defined in /usr/include/sys/quota.h.
+ * This means we must include linux/quota.h to have a hope of working on
+ * RH7.1 systems. And it also means this breaks if the kernel is upgraded
+ * to a Linus 2.4.x (where x > the minor number shipped with RH7.1) until
+ * Linus synchronises with the AC patches. Sometimes I *hate* Linux :-). JRA.
+ */
+
+#include <linux/quota.h>
+#ifdef HAVE_LINUX_XQM_H
+#include <linux/xqm.h>
+#endif
+
+#include <mntent.h>
+#include <linux/unistd.h>
+
+
+#define LINUX_QUOTAS_2
+
+typedef struct _LINUX_SMB_DISK_QUOTA {
+ SMB_BIG_UINT bsize;
+ SMB_BIG_UINT hardlimit; /* In bsize units. */
+ SMB_BIG_UINT softlimit; /* In bsize units. */
+ SMB_BIG_UINT curblocks; /* In bsize units. */
+ SMB_BIG_UINT ihardlimit; /* inode hard limit. */
+ SMB_BIG_UINT isoftlimit; /* inode soft limit. */
+ SMB_BIG_UINT curinodes; /* Current used inodes. */
+} LINUX_SMB_DISK_QUOTA;
+
+/****************************************************************************
+ Abstract out the XFS Quota Manager quota get call.
+****************************************************************************/
+
+static int get_smb_linux_xfs_quota(char *path, uid_t euser_id, LINUX_SMB_DISK_QUOTA *dp)
+{
+ int ret = -1;
+#ifdef HAVE_LINUX_XQM_H
+ struct fs_disk_quota D;
+ ZERO_STRUCT(D);
+
+ if ((ret = quotactl(QCMD(Q_XGETQUOTA,USRQUOTA), path, euser_id, (caddr_t)&D)))
+ return ret;
+
+ dp->bsize = (SMB_BIG_UINT)512;
+ dp->softlimit = (SMB_BIG_UINT)D.d_blk_softlimit;
+ dp->hardlimit = (SMB_BIG_UINT)D.d_blk_hardlimit;
+ dp->ihardlimit = (SMB_BIG_UINT)D.d_ino_hardlimit;
+ dp->isoftlimit = (SMB_BIG_UINT)D.d_ino_softlimit;
+ dp->curinodes = (SMB_BIG_UINT)D.d_icount;
+ dp->curblocks = (SMB_BIG_UINT)D.d_bcount;
+#endif
+ return ret;
+}
+
+/****************************************************************************
+ Abstract out the old and new Linux quota get calls.
+****************************************************************************/
+
+static int get_smb_linux_vfs_quota(char *path, uid_t euser_id, LINUX_SMB_DISK_QUOTA *dp)
+{
+ int ret;
+#ifdef LINUX_QUOTAS_1
+ struct dqblk D;
+ ZERO_STRUCT(D);
+ dp->bsize = (SMB_BIG_UINT)1024;
+#else /* LINUX_QUOTAS_2 */
+ struct mem_dqblk D;
+ ZERO_STRUCT(D);
+#ifndef QUOTABLOCK_SIZE
+#define QUOTABLOCK_SIZE 1024
+#endif
+ dp->bsize = (SMB_BIG_UINT)QUOTABLOCK_SIZE;
+#endif
+
+ if ((ret = quotactl(QCMD(Q_GETQUOTA,USRQUOTA), path, euser_id, (caddr_t)&D)))
+ return -1;
+
+ dp->softlimit = (SMB_BIG_UINT)D.dqb_bsoftlimit;
+ dp->hardlimit = (SMB_BIG_UINT)D.dqb_bhardlimit;
+ dp->ihardlimit = (SMB_BIG_UINT)D.dqb_ihardlimit;
+ dp->isoftlimit = (SMB_BIG_UINT)D.dqb_isoftlimit;
+ dp->curinodes = (SMB_BIG_UINT)D.dqb_curinodes;
+
+#ifdef LINUX_QUOTAS_1
+ dp->curblocks = (SMB_BIG_UINT)D.dqb_curblocks;
+#else /* LINUX_QUOTAS_2 */
+ dp->curblocks = ((SMB_BIG_UINT)D.dqb_curspace)/ dp->bsize;
+#endif
+
+ return 0;
+}
+
+/****************************************************************************
+try to get the disk space from disk quotas (LINUX version)
+****************************************************************************/
+
+BOOL disk_quotas(const char *path, SMB_BIG_UINT *bsize, SMB_BIG_UINT *dfree, SMB_BIG_UINT *dsize)
+{
+ int r;
+ SMB_STRUCT_STAT S;
+ FILE *fp;
+ LINUX_SMB_DISK_QUOTA D;
+ struct mntent *mnt;
+ SMB_DEV_T devno;
+ int found;
+ uid_t euser_id;
+
+ euser_id = geteuid();
+
+ /* find the block device file */
+
+ if ( sys_stat(path, &S) == -1 )
+ return(False) ;
+
+ devno = S.st_dev ;
+
+ fp = setmntent(MOUNTED,"r");
+ found = False ;
+
+ while ((mnt = getmntent(fp))) {
+ if ( sys_stat(mnt->mnt_dir,&S) == -1 )
+ continue ;
+
+ if (S.st_dev == devno) {
+ found = True ;
+ break;
+ }
+ }
+
+ endmntent(fp) ;
+
+ if (!found)
+ return(False);
+
+ save_re_uid();
+ set_effective_uid(0);
+ if (strcmp(mnt->mnt_type, "xfs") == 0)
+ r=get_smb_linux_xfs_quota(mnt->mnt_fsname, euser_id, &D);
+ else
+ r=get_smb_linux_vfs_quota(mnt->mnt_fsname, euser_id, &D);
+ restore_re_uid();
+
+ /* Use softlimit to determine disk space, except when it has been exceeded */
+ *bsize = D.bsize;
+ if (r == -1) {
+ if (errno == EDQUOT) {
+ *dfree =0;
+ *dsize =D.curblocks;
+ return (True);
+ } else {
+ return(False);
+ }
+ }
+
+ /* Use softlimit to determine disk space, except when it has been exceeded */
+ if (
+ (D.softlimit && D.curblocks >= D.softlimit) ||
+ (D.hardlimit && D.curblocks >= D.hardlimit) ||
+ (D.isoftlimit && D.curinodes >= D.isoftlimit) ||
+ (D.ihardlimit && D.curinodes>=D.ihardlimit)
+ ) {
+ *dfree = 0;
+ *dsize = D.curblocks;
+ } else if (D.softlimit==0 && D.hardlimit==0) {
+ return(False);
+ } else {
+ if (D.softlimit == 0)
+ D.softlimit = D.hardlimit;
+ *dfree = D.softlimit - D.curblocks;
+ *dsize = D.softlimit;
+ }
+
+ return (True);
+}
+
+#elif defined(CRAY)
+
+#include <sys/quota.h>
+#include <mntent.h>
+
+/****************************************************************************
+try to get the disk space from disk quotas (CRAY VERSION)
+****************************************************************************/
+
+BOOL disk_quotas(const char *path, SMB_BIG_UINT *bsize, SMB_BIG_UINT *dfree, SMB_BIG_UINT *dsize)
+{
+ struct mntent *mnt;
+ FILE *fd;
+ SMB_STRUCT_STAT sbuf;
+ SMB_DEV_T devno ;
+ static SMB_DEV_T devno_cached = 0 ;
+ static pstring name;
+ struct q_request request ;
+ struct qf_header header ;
+ static int quota_default = 0 ;
+ int found ;
+
+ if ( sys_stat(path,&sbuf) == -1 )
+ return(False) ;
+
+ devno = sbuf.st_dev ;
+
+ if ( devno != devno_cached ) {
+
+ devno_cached = devno ;
+
+ if ((fd = setmntent(KMTAB)) == NULL)
+ return(False) ;
+
+ found = False ;
+
+ while ((mnt = getmntent(fd)) != NULL) {
+
+ if ( sys_stat(mnt->mnt_dir,&sbuf) == -1 )
+ continue ;
+
+ if (sbuf.st_dev == devno) {
+
+ found = True ;
+ break ;
+
+ }
+
+ }
+
+ pstrcpy(name,mnt->mnt_dir) ;
+ endmntent(fd) ;
+
+ if ( ! found )
+ return(False) ;
+ }
+
+ request.qf_magic = QF_MAGIC ;
+ request.qf_entry.id = geteuid() ;
+
+ if (quotactl(name, Q_GETQUOTA, &request) == -1)
+ return(False) ;
+
+ if ( ! request.user )
+ return(False) ;
+
+ if ( request.qf_entry.user_q.f_quota == QFV_DEFAULT ) {
+
+ if ( ! quota_default ) {
+
+ if ( quotactl(name, Q_GETHEADER, &header) == -1 )
+ return(False) ;
+ else
+ quota_default = header.user_h.def_fq ;
+ }
+
+ *dfree = quota_default ;
+
+ }else if ( request.qf_entry.user_q.f_quota == QFV_PREVENT ) {
+
+ *dfree = 0 ;
+
+ }else{
+
+ *dfree = request.qf_entry.user_q.f_quota ;
+
+ }
+
+ *dsize = request.qf_entry.user_q.f_use ;
+
+ if ( *dfree < *dsize )
+ *dfree = 0 ;
+ else
+ *dfree -= *dsize ;
+
+ *bsize = 4096 ; /* Cray blocksize */
+
+ return(True) ;
+
+}
+
+
+#elif defined(SUNOS5) || defined(SUNOS4)
+
+#include <fcntl.h>
+#include <sys/param.h>
+#if defined(SUNOS5)
+#include <sys/fs/ufs_quota.h>
+#include <sys/mnttab.h>
+#include <sys/mntent.h>
+#else /* defined(SUNOS4) */
+#include <ufs/quota.h>
+#include <mntent.h>
+#endif
+
+#if defined(SUNOS5)
+
+/****************************************************************************
+ Allows querying of remote hosts for quotas on NFS mounted shares.
+ Supports normal NFS and AMD mounts.
+ Alan Romeril <a.romeril@ic.ac.uk> July 2K.
+****************************************************************************/
+
+#include <rpc/rpc.h>
+#include <rpc/types.h>
+#include <rpcsvc/rquota.h>
+#include <rpc/nettype.h>
+#include <rpc/xdr.h>
+
+static int quotastat;
+
+static int xdr_getquota_args(XDR *xdrsp, struct getquota_args *args)
+{
+ if (!xdr_string(xdrsp, &args->gqa_pathp, RQ_PATHLEN ))
+ return(0);
+ if (!xdr_int(xdrsp, &args->gqa_uid))
+ return(0);
+ return (1);
+}
+
+static int xdr_getquota_rslt(XDR *xdrsp, struct getquota_rslt *gqr)
+{
+ if (!xdr_int(xdrsp, &quotastat)) {
+ DEBUG(6,("nfs_quotas: Status bad or zero\n"));
+ return 0;
+ }
+ if (!xdr_int(xdrsp, &gqr->getquota_rslt_u.gqr_rquota.rq_bsize)) {
+ DEBUG(6,("nfs_quotas: Block size bad or zero\n"));
+ return 0;
+ }
+ if (!xdr_bool(xdrsp, &gqr->getquota_rslt_u.gqr_rquota.rq_active)) {
+ DEBUG(6,("nfs_quotas: Active bad or zero\n"));
+ return 0;
+ }
+ if (!xdr_int(xdrsp, &gqr->getquota_rslt_u.gqr_rquota.rq_bhardlimit)) {
+ DEBUG(6,("nfs_quotas: Hardlimit bad or zero\n"));
+ return 0;
+ }
+ if (!xdr_int(xdrsp, &gqr->getquota_rslt_u.gqr_rquota.rq_bsoftlimit)) {
+ DEBUG(6,("nfs_quotas: Softlimit bad or zero\n"));
+ return 0;
+ }
+ if (!xdr_int(xdrsp, &gqr->getquota_rslt_u.gqr_rquota.rq_curblocks)) {
+ DEBUG(6,("nfs_quotas: Currentblocks bad or zero\n"));
+ return 0;
+ }
+ return (1);
+}
+
+/* Restricted to SUNOS5 for the moment, I haven`t access to others to test. */
+static BOOL nfs_quotas(char *nfspath, uid_t euser_id, SMB_BIG_UINT *bsize, SMB_BIG_UINT *dfree, SMB_BIG_UINT *dsize)
+{
+ uid_t uid = euser_id;
+ struct dqblk D;
+ char *mnttype = nfspath;
+ CLIENT *clnt;
+ struct getquota_rslt gqr;
+ struct getquota_args args;
+ char *cutstr, *pathname, *host, *testpath;
+ int len;
+ static struct timeval timeout = {2,0};
+ enum clnt_stat clnt_stat;
+ BOOL ret = True;
+
+ *bsize = *dfree = *dsize = (SMB_BIG_UINT)0;
+
+ len=strcspn(mnttype, ":");
+ pathname=strstr(mnttype, ":");
+ cutstr = (char *) malloc(sizeof(char) * len );
+ if (!cutstr)
+ return False;
+
+ host = strncat(cutstr,mnttype, sizeof(char) * len );
+ DEBUG(5,("nfs_quotas: looking for mount on \"%s\"\n", cutstr));
+ DEBUG(5,("nfs_quotas: of path \"%s\"\n", mnttype));
+ testpath=strchr_m(mnttype, ':');
+ args.gqa_pathp = testpath+1;
+ args.gqa_uid = uid;
+
+ DEBUG(5,("nfs_quotas: Asking for host \"%s\" rpcprog \"%i\" rpcvers \"%i\" network \"%s\"\n", host, RQUOTAPROG, RQUOTAVERS, "udp"));
+
+ if ((clnt = clnt_create(host, RQUOTAPROG, RQUOTAVERS, "udp")) == NULL) {
+ ret = False;
+ goto out;
+ }
+
+ clnt->cl_auth = authunix_create_default();
+ DEBUG(9,("nfs_quotas: auth_success\n"));
+
+ clnt_stat=clnt_call(clnt, RQUOTAPROC_GETQUOTA, xdr_getquota_args, (caddr_t)&args, xdr_getquota_rslt, (caddr_t)&gqr, timeout);
+
+ if (clnt_stat != RPC_SUCCESS) {
+ DEBUG(9,("nfs_quotas: clnt_call fail\n"));
+ ret = False;
+ goto out;
+ }
+
+ /*
+ * quotastat returns 0 if the rpc call fails, 1 if quotas exist, 2 if there is
+ * no quota set, and 3 if no permission to get the quota. If 0 or 3 return
+ * something sensible.
+ */
+
+ switch ( quotastat ) {
+ case 0:
+ DEBUG(9,("nfs_quotas: Remote Quotas Failed! Error \"%i\" \n", quotastat ));
+ ret = False;
+ goto out;
+
+ case 1:
+ DEBUG(9,("nfs_quotas: Good quota data\n"));
+ D.dqb_bsoftlimit = gqr.getquota_rslt_u.gqr_rquota.rq_bsoftlimit;
+ D.dqb_bhardlimit = gqr.getquota_rslt_u.gqr_rquota.rq_bhardlimit;
+ D.dqb_curblocks = gqr.getquota_rslt_u.gqr_rquota.rq_curblocks;
+ break;
+
+ case 2:
+ case 3:
+ D.dqb_bsoftlimit = 1;
+ D.dqb_curblocks = 1;
+ DEBUG(9,("nfs_quotas: Remote Quotas returned \"%i\" \n", quotastat ));
+ break;
+
+ default:
+ DEBUG(9,("nfs_quotas: Remote Quotas Questionable! Error \"%i\" \n", quotastat ));
+ break;
+ }
+
+ DEBUG(10,("nfs_quotas: Let`s look at D a bit closer... status \"%i\" bsize \"%i\" active? \"%i\" bhard \"%i\" bsoft \"%i\" curb \"%i\" \n",
+ quotastat,
+ gqr.getquota_rslt_u.gqr_rquota.rq_bsize,
+ gqr.getquota_rslt_u.gqr_rquota.rq_active,
+ gqr.getquota_rslt_u.gqr_rquota.rq_bhardlimit,
+ gqr.getquota_rslt_u.gqr_rquota.rq_bsoftlimit,
+ gqr.getquota_rslt_u.gqr_rquota.rq_curblocks));
+
+ *bsize = gqr.getquota_rslt_u.gqr_rquota.rq_bsize;
+ *dsize = D.dqb_bsoftlimit;
+
+ if (D.dqb_curblocks == D.dqb_curblocks == 1)
+ *bsize = 512;
+
+ if (D.dqb_curblocks > D.dqb_bsoftlimit) {
+ *dfree = 0;
+ *dsize = D.dqb_curblocks;
+ } else
+ *dfree = D.dqb_bsoftlimit - D.dqb_curblocks;
+
+ out:
+
+ if (clnt) {
+ if (clnt->cl_auth)
+ auth_destroy(clnt->cl_auth);
+ clnt_destroy(clnt);
+ }
+
+ DEBUG(5,("nfs_quotas: For path \"%s\" returning bsize %.0f, dfree %.0f, dsize %.0f\n",args.gqa_pathp,(double)*bsize,(double)*dfree,(double)*dsize));
+
+ SAFE_FREE(cutstr);
+ DEBUG(10,("nfs_quotas: End of nfs_quotas\n" ));
+ return ret;
+}
+#endif
+
+/****************************************************************************
+try to get the disk space from disk quotas (SunOS & Solaris2 version)
+Quota code by Peter Urbanec (amiga@cse.unsw.edu.au).
+****************************************************************************/
+
+BOOL disk_quotas(const char *path, SMB_BIG_UINT *bsize, SMB_BIG_UINT *dfree, SMB_BIG_UINT *dsize)
+{
+ uid_t euser_id;
+ int ret;
+ struct dqblk D;
+#if defined(SUNOS5)
+ struct quotctl command;
+ int file;
+ static struct mnttab mnt;
+ static pstring name;
+ pstring devopt;
+#else /* SunOS4 */
+ struct mntent *mnt;
+ static pstring name;
+#endif
+ FILE *fd;
+ SMB_STRUCT_STAT sbuf;
+ SMB_DEV_T devno ;
+ static SMB_DEV_T devno_cached = 0 ;
+ static int found ;
+
+ euser_id = geteuid();
+
+ if ( sys_stat(path,&sbuf) == -1 )
+ return(False) ;
+
+ devno = sbuf.st_dev ;
+ DEBUG(5,("disk_quotas: looking for path \"%s\" devno=%x\n", path,(unsigned int)devno));
+ if ( devno != devno_cached ) {
+ devno_cached = devno ;
+#if defined(SUNOS5)
+ if ((fd = sys_fopen(MNTTAB, "r")) == NULL)
+ return(False) ;
+
+ found = False ;
+ slprintf(devopt, sizeof(devopt) - 1, "dev=%x", (unsigned int)devno);
+ while (getmntent(fd, &mnt) == 0) {
+ if( !hasmntopt(&mnt, devopt) )
+ continue;
+
+ DEBUG(5,("disk_quotas: testing \"%s\" %s\n", mnt.mnt_mountp,devopt));
+
+ /* quotas are only on vxfs, UFS or NFS */
+ if ( strcmp( mnt.mnt_fstype, MNTTYPE_UFS ) == 0 ||
+ strcmp( mnt.mnt_fstype, "nfs" ) == 0 ||
+ strcmp( mnt.mnt_fstype, "vxfs" ) == 0 ) {
+ found = True ;
+ break;
+ }
+ }
+
+ pstrcpy(name,mnt.mnt_mountp) ;
+ pstrcat(name,"/quotas") ;
+ fclose(fd) ;
+#else /* SunOS4 */
+ if ((fd = setmntent(MOUNTED, "r")) == NULL)
+ return(False) ;
+
+ found = False ;
+ while ((mnt = getmntent(fd)) != NULL) {
+ if ( sys_stat(mnt->mnt_dir,&sbuf) == -1 )
+ continue ;
+ DEBUG(5,("disk_quotas: testing \"%s\" devno=%x\n", mnt->mnt_dir,(unsigned int)sbuf.st_dev));
+ if (sbuf.st_dev == devno) {
+ found = True ;
+ break;
+ }
+ }
+
+ pstrcpy(name,mnt->mnt_fsname) ;
+ endmntent(fd) ;
+#endif
+ }
+
+ if ( ! found )
+ return(False) ;
+
+ save_re_uid();
+ set_effective_uid(0);
+
+#if defined(SUNOS5)
+ if ( strcmp( mnt.mnt_fstype, "nfs" ) == 0) {
+ BOOL retval;
+ DEBUG(5,("disk_quotas: looking for mountpath (NFS) \"%s\"\n", mnt.mnt_special));
+ retval = nfs_quotas(mnt.mnt_special, euser_id, bsize, dfree, dsize);
+ restore_re_uid();
+ return retval;
+ }
+
+ DEBUG(5,("disk_quotas: looking for quotas file \"%s\"\n", name));
+ if((file=sys_open(name, O_RDONLY,0))<0) {
+ restore_re_uid();
+ return(False);
+ }
+ command.op = Q_GETQUOTA;
+ command.uid = euser_id;
+ command.addr = (caddr_t) &D;
+ ret = ioctl(file, Q_QUOTACTL, &command);
+ close(file);
+#else
+ DEBUG(5,("disk_quotas: trying quotactl on device \"%s\"\n", name));
+ ret = quotactl(Q_GETQUOTA, name, euser_id, &D);
+#endif
+
+ restore_re_uid();
+
+ if (ret < 0) {
+ DEBUG(5,("disk_quotas ioctl (Solaris) failed. Error = %s\n", strerror(errno) ));
+
+#if defined(SUNOS5) && defined(VXFS_QUOTA)
+ /* If normal quotactl() fails, try vxfs private calls */
+ set_effective_uid(euser_id);
+ DEBUG(5,("disk_quotas: mount type \"%s\"\n", mnt.mnt_fstype));
+ if ( 0 == strcmp ( mnt.mnt_fstype, "vxfs" )) {
+ BOOL retval;
+ retval = disk_quotas_vxfs(name, path, bsize, dfree, dsize);
+ return(retval);
+ }
+#else
+ return(False);
+#endif
+ }
+
+ /* If softlimit is zero, set it equal to hardlimit.
+ */
+
+ if (D.dqb_bsoftlimit==0)
+ D.dqb_bsoftlimit = D.dqb_bhardlimit;
+
+ /* Use softlimit to determine disk space. A user exceeding the quota is told
+ * that there's no space left. Writes might actually work for a bit if the
+ * hardlimit is set higher than softlimit. Effectively the disk becomes
+ * made of rubber latex and begins to expand to accommodate the user :-)
+ */
+
+ if (D.dqb_bsoftlimit==0)
+ return(False);
+ *bsize = DEV_BSIZE;
+ *dsize = D.dqb_bsoftlimit;
+
+ if (D.dqb_curblocks > D.dqb_bsoftlimit) {
+ *dfree = 0;
+ *dsize = D.dqb_curblocks;
+ } else
+ *dfree = D.dqb_bsoftlimit - D.dqb_curblocks;
+
+ DEBUG(5,("disk_quotas for path \"%s\" returning bsize %.0f, dfree %.0f, dsize %.0f\n",
+ path,(double)*bsize,(double)*dfree,(double)*dsize));
+
+ return(True);
+}
+
+
+#elif defined(OSF1)
+#include <ufs/quota.h>
+
+/****************************************************************************
+try to get the disk space from disk quotas - OSF1 version
+****************************************************************************/
+
+BOOL disk_quotas(const char *path, SMB_BIG_UINT *bsize, SMB_BIG_UINT *dfree, SMB_BIG_UINT *dsize)
+{
+ int r, save_errno;
+ struct dqblk D;
+ SMB_STRUCT_STAT S;
+ uid_t euser_id;
+
+ /*
+ * This code presumes that OSF1 will only
+ * give out quota info when the real uid
+ * matches the effective uid. JRA.
+ */
+ euser_id = geteuid();
+ save_re_uid();
+ if (set_re_uid() != 0) return False;
+
+ r= quotactl(path,QCMD(Q_GETQUOTA, USRQUOTA),euser_id,(char *) &D);
+ if (r) {
+ save_errno = errno;
+ }
+
+ restore_re_uid();
+
+ *bsize = DEV_BSIZE;
+
+ if (r)
+ {
+ if (save_errno == EDQUOT) /* disk quota exceeded */
+ {
+ *dfree = 0;
+ *dsize = D.dqb_curblocks;
+ return (True);
+ }
+ else
+ return (False);
+ }
+
+ /* If softlimit is zero, set it equal to hardlimit.
+ */
+
+ if (D.dqb_bsoftlimit==0)
+ D.dqb_bsoftlimit = D.dqb_bhardlimit;
+
+ /* Use softlimit to determine disk space, except when it has been exceeded */
+
+ if (D.dqb_bsoftlimit==0)
+ return(False);
+
+ if ((D.dqb_curblocks>D.dqb_bsoftlimit)) {
+ *dfree = 0;
+ *dsize = D.dqb_curblocks;
+ } else {
+ *dfree = D.dqb_bsoftlimit - D.dqb_curblocks;
+ *dsize = D.dqb_bsoftlimit;
+ }
+ return (True);
+}
+
+#elif defined (IRIX6)
+/****************************************************************************
+try to get the disk space from disk quotas (IRIX 6.2 version)
+****************************************************************************/
+
+#include <sys/quota.h>
+#include <mntent.h>
+
+BOOL disk_quotas(const char *path, SMB_BIG_UINT *bsize, SMB_BIG_UINT *dfree, SMB_BIG_UINT *dsize)
+{
+ uid_t euser_id;
+ int r;
+ struct dqblk D;
+ struct fs_disk_quota F;
+ SMB_STRUCT_STAT S;
+ FILE *fp;
+ struct mntent *mnt;
+ SMB_DEV_T devno;
+ int found;
+
+ /* find the block device file */
+
+ if ( sys_stat(path, &S) == -1 ) {
+ return(False) ;
+ }
+
+ devno = S.st_dev ;
+
+ fp = setmntent(MOUNTED,"r");
+ found = False ;
+
+ while ((mnt = getmntent(fp))) {
+ if ( sys_stat(mnt->mnt_dir,&S) == -1 )
+ continue ;
+ if (S.st_dev == devno) {
+ found = True ;
+ break ;
+ }
+ }
+ endmntent(fp) ;
+
+ if (!found) {
+ return(False);
+ }
+
+ euser_id=geteuid();
+ save_re_uid();
+ set_effective_uid(0);
+
+ /* Use softlimit to determine disk space, except when it has been exceeded */
+
+ *bsize = 512;
+
+ if ( 0 == strcmp ( mnt->mnt_type, "efs" ))
+ {
+ r=quotactl (Q_GETQUOTA, mnt->mnt_fsname, euser_id, (caddr_t) &D);
+
+ restore_re_uid();
+
+ if (r==-1)
+ return(False);
+
+ /* Use softlimit to determine disk space, except when it has been exceeded */
+ if (
+ (D.dqb_bsoftlimit && D.dqb_curblocks>=D.dqb_bsoftlimit) ||
+ (D.dqb_bhardlimit && D.dqb_curblocks>=D.dqb_bhardlimit) ||
+ (D.dqb_fsoftlimit && D.dqb_curfiles>=D.dqb_fsoftlimit) ||
+ (D.dqb_fhardlimit && D.dqb_curfiles>=D.dqb_fhardlimit)
+ )
+ {
+ *dfree = 0;
+ *dsize = D.dqb_curblocks;
+ }
+ else if (D.dqb_bsoftlimit==0 && D.dqb_bhardlimit==0)
+ {
+ return(False);
+ }
+ else
+ {
+ *dfree = D.dqb_bsoftlimit - D.dqb_curblocks;
+ *dsize = D.dqb_bsoftlimit;
+ }
+
+ }
+ else if ( 0 == strcmp ( mnt->mnt_type, "xfs" ))
+ {
+ r=quotactl (Q_XGETQUOTA, mnt->mnt_fsname, euser_id, (caddr_t) &F);
+
+ restore_re_uid();
+
+ if (r==-1)
+ return(False);
+
+ /* Use softlimit to determine disk space, except when it has been exceeded */
+ if (
+ (F.d_blk_softlimit && F.d_bcount>=F.d_blk_softlimit) ||
+ (F.d_blk_hardlimit && F.d_bcount>=F.d_blk_hardlimit) ||
+ (F.d_ino_softlimit && F.d_icount>=F.d_ino_softlimit) ||
+ (F.d_ino_hardlimit && F.d_icount>=F.d_ino_hardlimit)
+ )
+ {
+ *dfree = 0;
+ *dsize = F.d_bcount;
+ }
+ else if (F.d_blk_softlimit==0 && F.d_blk_hardlimit==0)
+ {
+ return(False);
+ }
+ else
+ {
+ *dfree = (F.d_blk_softlimit - F.d_bcount);
+ *dsize = F.d_blk_softlimit;
+ }
+
+ }
+ else
+ {
+ restore_re_uid();
+ return(False);
+ }
+
+ return (True);
+
+}
+
+#else
+
+#if defined(__FreeBSD__) || defined(__OpenBSD__)
+#include <ufs/ufs/quota.h>
+#include <machine/param.h>
+#elif AIX
+/* AIX quota patch from Ole Holm Nielsen <ohnielse@fysik.dtu.dk> */
+#include <jfs/quota.h>
+/* AIX 4.X: Rename members of the dqblk structure (ohnielse@fysik.dtu.dk) */
+#define dqb_curfiles dqb_curinodes
+#define dqb_fhardlimit dqb_ihardlimit
+#define dqb_fsoftlimit dqb_isoftlimit
+#else /* !__FreeBSD__ && !AIX && !__OpenBSD__ */
+#include <sys/quota.h>
+#include <devnm.h>
+#endif
+
+/****************************************************************************
+try to get the disk space from disk quotas - default version
+****************************************************************************/
+
+BOOL disk_quotas(const char *path, SMB_BIG_UINT *bsize, SMB_BIG_UINT *dfree, SMB_BIG_UINT *dsize)
+{
+ int r;
+ struct dqblk D;
+ uid_t euser_id;
+#if !defined(__FreeBSD__) && !defined(AIX) && !defined(__OpenBSD__)
+ char dev_disk[256];
+ SMB_STRUCT_STAT S;
+ /* find the block device file */
+ if ((sys_stat(path, &S)<0) ||
+ (devnm(S_IFBLK, S.st_dev, dev_disk, 256, 0)<0)) return (False);
+#endif
+
+ euser_id = geteuid();
+
+#ifdef HPUX
+ /* for HPUX, real uid must be same as euid to execute quotactl for euid */
+ save_re_uid();
+ if (set_re_uid() != 0) return False;
+
+ r=quotactl(Q_GETQUOTA, dev_disk, euser_id, &D);
+
+ restore_re_uid();
+#else
+#if defined(__FreeBSD__) || defined(__OpenBSD__)
+ {
+ /* FreeBSD patches from Marty Moll <martym@arbor.edu> */
+ gid_t egrp_id;
+
+ save_re_uid();
+ set_effective_uid(0);
+
+ egrp_id = getegid();
+ r= quotactl(path,QCMD(Q_GETQUOTA,USRQUOTA),euser_id,(char *) &D);
+
+ /* As FreeBSD has group quotas, if getting the user
+ quota fails, try getting the group instead. */
+ if (r) {
+ r= quotactl(path,QCMD(Q_GETQUOTA,GRPQUOTA),egrp_id,(char *) &D);
+ }
+
+ restore_re_uid();
+ }
+#elif defined(AIX)
+ /* AIX has both USER and GROUP quotas:
+ Get the USER quota (ohnielse@fysik.dtu.dk) */
+ r= quotactl(path,QCMD(Q_GETQUOTA,USRQUOTA),euser_id,(char *) &D);
+#else /* !__FreeBSD__ && !AIX && !__OpenBSD__ */
+ r=quotactl(Q_GETQUOTA, dev_disk, euser_id, &D);
+#endif /* !__FreeBSD__ && !AIX && !__OpenBSD__ */
+#endif /* HPUX */
+
+ /* Use softlimit to determine disk space, except when it has been exceeded */
+#if defined(__FreeBSD__) || defined(__OpenBSD__)
+ *bsize = DEV_BSIZE;
+#else /* !__FreeBSD__ && !__OpenBSD__ */
+ *bsize = 1024;
+#endif /*!__FreeBSD__ && !__OpenBSD__ */
+
+ if (r)
+ {
+ if (errno == EDQUOT)
+ {
+ *dfree =0;
+ *dsize =D.dqb_curblocks;
+ return (True);
+ }
+ else return(False);
+ }
+
+ /* If softlimit is zero, set it equal to hardlimit.
+ */
+
+ if (D.dqb_bsoftlimit==0)
+ D.dqb_bsoftlimit = D.dqb_bhardlimit;
+
+ if (D.dqb_bsoftlimit==0)
+ return(False);
+ /* Use softlimit to determine disk space, except when it has been exceeded */
+ if ((D.dqb_curblocks>D.dqb_bsoftlimit)
+#if !defined(__FreeBSD__) && !defined(__OpenBSD__)
+||((D.dqb_curfiles>D.dqb_fsoftlimit) && (D.dqb_fsoftlimit != 0))
+#endif
+ ) {
+ *dfree = 0;
+ *dsize = D.dqb_curblocks;
+ }
+ else {
+ *dfree = D.dqb_bsoftlimit - D.dqb_curblocks;
+ *dsize = D.dqb_bsoftlimit;
+ }
+ return (True);
+}
+
+#endif
+
+#if defined(VXFS_QUOTA)
+
+/****************************************************************************
+Try to get the disk space from Veritas disk quotas.
+ David Lee <T.D.Lee@durham.ac.uk> August 1999.
+
+Background assumptions:
+ Potentially under many Operating Systems. Initially Solaris 2.
+
+ My guess is that Veritas is largely, though not entirely,
+ independent of OS. So I have separated it out.
+
+ There may be some details. For example, OS-specific "include" files.
+
+ It is understood that HPUX 10 somehow gets Veritas quotas without
+ any special effort; if so, this routine need not be compiled in.
+ Dirk De Wachter <Dirk.DeWachter@rug.ac.be>
+
+Warning:
+ It is understood that Veritas do not publicly support this ioctl interface.
+ Rather their preference would be for the user (us) to call the native
+ OS and then for the OS itself to call through to the VxFS filesystem.
+ Presumably HPUX 10, see above, does this.
+
+Hints for porting:
+ Add your OS to "IFLIST" below.
+ Get it to compile successfully:
+ Almost certainly "include"s require attention: see SUNOS5.
+ In the main code above, arrange for it to be called: see SUNOS5.
+ Test!
+
+****************************************************************************/
+
+/* "IFLIST"
+ * This "if" is a list of ports:
+ * if defined(OS1) || defined(OS2) || ...
+ */
+#if defined(SUNOS5)
+
+#if defined(SUNOS5)
+#include <sys/fs/vx_solaris.h>
+#endif
+#include <sys/fs/vx_machdep.h>
+#include <sys/fs/vx_layout.h>
+#include <sys/fs/vx_quota.h>
+#include <sys/fs/vx_aioctl.h>
+#include <sys/fs/vx_ioctl.h>
+
+BOOL disk_quotas_vxfs(const pstring name, char *path, SMB_BIG_UINT *bsize, SMB_BIG_UINT *dfree, SMB_BIG_UINT *dsize)
+{
+ uid_t user_id, euser_id;
+ int ret;
+ struct vx_dqblk D;
+ struct vx_quotctl quotabuf;
+ struct vx_genioctl genbuf;
+ pstring qfname;
+ int file;
+
+ /*
+ * "name" may or may not include a trailing "/quotas".
+ * Arranging consistency of calling here in "quotas.c" may not be easy and
+ * it might be easier to examine and adjust it here.
+ * Fortunately, VxFS seems not to mind at present.
+ */
+ pstrcpy(qfname, name) ;
+ /* pstrcat(qfname, "/quotas") ; */ /* possibly examine and adjust "name" */
+
+ euser_id = geteuid();
+ set_effective_uid(0);
+
+ DEBUG(5,("disk_quotas: looking for VxFS quotas file \"%s\"\n", qfname));
+ if((file=sys_open(qfname, O_RDONLY,0))<0) {
+ set_effective_uid(euser_id);
+ return(False);
+ }
+ genbuf.ioc_cmd = VX_QUOTACTL;
+ genbuf.ioc_up = (void *) &quotabuf;
+
+ quotabuf.cmd = VX_GETQUOTA;
+ quotabuf.uid = euser_id;
+ quotabuf.addr = (caddr_t) &D;
+ ret = ioctl(file, VX_ADMIN_IOCTL, &genbuf);
+ close(file);
+
+ set_effective_uid(euser_id);
+
+ if (ret < 0) {
+ DEBUG(5,("disk_quotas ioctl (VxFS) failed. Error = %s\n", strerror(errno) ));
+ return(False);
+ }
+
+ /* If softlimit is zero, set it equal to hardlimit.
+ */
+
+ if (D.dqb_bsoftlimit==0)
+ D.dqb_bsoftlimit = D.dqb_bhardlimit;
+
+ /* Use softlimit to determine disk space. A user exceeding the quota is told
+ * that there's no space left. Writes might actually work for a bit if the
+ * hardlimit is set higher than softlimit. Effectively the disk becomes
+ * made of rubber latex and begins to expand to accommodate the user :-)
+ */
+ DEBUG(5,("disk_quotas for path \"%s\" block c/s/h %ld/%ld/%ld; file c/s/h %ld/%ld/%ld\n",
+ path, D.dqb_curblocks, D.dqb_bsoftlimit, D.dqb_bhardlimit,
+ D.dqb_curfiles, D.dqb_fsoftlimit, D.dqb_fhardlimit));
+
+ if (D.dqb_bsoftlimit==0)
+ return(False);
+ *bsize = DEV_BSIZE;
+ *dsize = D.dqb_bsoftlimit;
+
+ if (D.dqb_curblocks > D.dqb_bsoftlimit) {
+ *dfree = 0;
+ *dsize = D.dqb_curblocks;
+ } else
+ *dfree = D.dqb_bsoftlimit - D.dqb_curblocks;
+
+ DEBUG(5,("disk_quotas for path \"%s\" returning bsize %.0f, dfree %.0f, dsize %.0f\n",
+ path,(double)*bsize,(double)*dfree,(double)*dsize));
+
+ return(True);
+}
+
+#endif /* SUNOS5 || ... */
+
+#endif /* VXFS_QUOTA */
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