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-rw-r--r--source3/lib/sysquotas_nfs.c303
1 files changed, 303 insertions, 0 deletions
diff --git a/source3/lib/sysquotas_nfs.c b/source3/lib/sysquotas_nfs.c
new file mode 100644
index 0000000..14dcb02
--- /dev/null
+++ b/source3/lib/sysquotas_nfs.c
@@ -0,0 +1,303 @@
+/*
+ Unix SMB/CIFS implementation.
+ System QUOTA function wrappers for NFS
+ Copyright (C) Michael Adam 2010
+
+ 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 3 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, see <http://www.gnu.org/licenses/>.
+*/
+
+
+#include "includes.h"
+
+#undef DBGC_CLASS
+#define DBGC_CLASS DBGC_QUOTA
+
+#ifndef HAVE_SYS_QUOTAS
+#ifdef HAVE_NFS_QUOTAS
+#undef HAVE_NFS_QUOTAS
+#endif
+#endif
+
+#ifdef HAVE_NFS_QUOTAS
+
+/*
+ * nfs quota support
+ * This is based on the FreeBSD / SUNOS5 section of quotas.c
+ */
+
+/* <rpc/xdr.h> uses TRUE and FALSE */
+#ifdef TRUE
+#undef TRUE
+#endif
+
+#ifdef FALSE
+#undef FALSE
+#endif
+
+#include <rpc/rpc.h>
+#include <rpc/types.h>
+#include <rpc/xdr.h>
+#include <rpcsvc/rquota.h>
+#ifdef HAVE_RPC_NETTYPE_H
+#include <rpc/nettype.h>
+#endif
+
+#ifndef RQ_PATHLEN
+#define RQ_PATHLEN 1024
+#endif
+
+#ifdef HAVE_GETQUOTA_RSLT_GETQUOTA_RSLT_U
+#define GQR_RQUOTA getquota_rslt_u.gqr_rquota
+#define GQR_STATUS status
+#else
+#define GQR_RQUOTA gqr_rquota
+#define GQR_STATUS gqr_status
+#endif
+
+static int my_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 my_xdr_getquota_rslt(XDR *xdrsp, struct getquota_rslt *gqr)
+{
+ int quotastat;
+
+ if (!xdr_int(xdrsp, &quotastat)) {
+ DEBUG(6,("nfs_quotas: Status bad or zero\n"));
+ return 0;
+ }
+ gqr->GQR_STATUS = quotastat;
+
+ if (!xdr_int(xdrsp, &gqr->GQR_RQUOTA.rq_bsize)) {
+ DEBUG(6,("nfs_quotas: Block size bad or zero\n"));
+ return 0;
+ }
+ if (!xdr_bool(xdrsp, &gqr->GQR_RQUOTA.rq_active)) {
+ DEBUG(6,("nfs_quotas: Active bad or zero\n"));
+ return 0;
+ }
+ if (!xdr_int(xdrsp, (int *)&gqr->GQR_RQUOTA.rq_bhardlimit)) {
+ DEBUG(6,("nfs_quotas: Hardlimit bad or zero\n"));
+ return 0;
+ }
+ if (!xdr_int(xdrsp, (int *)&gqr->GQR_RQUOTA.rq_bsoftlimit)) {
+ DEBUG(6,("nfs_quotas: Softlimit bad or zero\n"));
+ return 0;
+ }
+ if (!xdr_int(xdrsp, (int *)&gqr->GQR_RQUOTA.rq_curblocks)) {
+ DEBUG(6,("nfs_quotas: Currentblocks bad or zero\n"));
+ return 0;
+ }
+ return (1);
+}
+
+
+int sys_get_nfs_quota(const char *path, const char *bdev,
+ enum SMB_QUOTA_TYPE qtype,
+ unid_t id, SMB_DISK_QUOTA *dp)
+{
+ CLIENT *clnt = NULL;
+ struct getquota_rslt gq_rslt;
+ struct getquota_args gq_args;
+ const char *mnttype;
+ char *cutstr, *host, *testpath;
+ int len;
+ static struct timeval timeout = {2,0};
+ enum clnt_stat clnt_stat;
+
+ int ret = -1;
+ uint32_t qflags = 0;
+
+ if (!path || !bdev || !dp) {
+ smb_panic("sys_get_nfs_quota: called with NULL pointer");
+ }
+
+ DEBUG(10, ("sys_get_nfs_quota: path[%s] bdev[%s] qtype[%d]\n",
+ path, bdev, qtype));
+
+ ZERO_STRUCT(*dp);
+
+ dp->qtype = qtype;
+
+ if (qtype != SMB_USER_QUOTA_TYPE) {
+ DEBUG(3, ("sys_get_nfs_quota: got unsupported quota type '%d', "
+ "only supported type is '%d' (SMB_USER_QUOTA_TYPE)\n",
+ qtype, SMB_USER_QUOTA_TYPE));
+ errno = ENOSYS;
+ return -1;
+ }
+
+ mnttype = bdev;
+ len = strcspn(mnttype, ":");
+ cutstr = (char *) SMB_MALLOC(len+1);
+ if (cutstr == NULL) {
+ errno = ENOMEM;
+ return -1;
+ }
+
+ memset(cutstr, '\0', len+1);
+ host = strncat(cutstr, mnttype, sizeof(char) * len);
+ testpath = strchr_m(mnttype, ':');
+ if (testpath == NULL) {
+ errno = EINVAL;
+ goto out;
+ }
+ testpath++;
+ gq_args.gqa_pathp = testpath;
+ gq_args.gqa_uid = id.uid;
+
+ DEBUG(10, ("sys_get_nfs_quotas: Asking for quota of path '%s' on "
+ "host '%s', rpcprog '%i', rpcvers '%i', network '%s'\n",
+ host, testpath+1, (int)RQUOTAPROG, (int)RQUOTAVERS, "udp"));
+
+ clnt = clnt_create(host, RQUOTAPROG, RQUOTAVERS, "udp");
+ if (clnt == NULL) {
+ ret = -1;
+ goto out;
+ }
+
+ clnt->cl_auth = authunix_create_default();
+ if (clnt->cl_auth == NULL) {
+ DEBUG(3, ("sys_get_nfs_quotas: authunix_create_default "
+ "failed\n"));
+ ret = -1;
+ goto out;
+ }
+
+ clnt_stat = clnt_call(clnt,
+ RQUOTAPROC_GETQUOTA,
+ (const xdrproc_t) my_xdr_getquota_args,
+ (caddr_t)&gq_args,
+ (const xdrproc_t) my_xdr_getquota_rslt,
+ (caddr_t)&gq_rslt,
+ timeout);
+
+ if (clnt_stat != RPC_SUCCESS) {
+ if (errno == ECONNREFUSED) {
+ /* If we cannot connect with rpc.quotad, it may
+ * simply be because there's no quota on the remote
+ * system
+ */
+ DBG_INFO("clnt_call failed with ECONNREFUSED - "
+ "assuming no quotas on server\n");
+ ret = 0;
+ } else {
+ int save_errno = errno;
+ DBG_NOTICE("clnt_call failed - %s\n", strerror(errno));
+ errno = save_errno;
+ ret = -1;
+ }
+ goto out;
+ }
+
+ DEBUG(10, ("sys_get_nfs_quotas: getquota_rslt:\n"
+ "status : '%i'\n"
+ "bsize : '%i'\n"
+ "active : '%s'\n"
+ "bhardlimit : '%u'\n"
+ "bsoftlimit : '%u'\n"
+ "curblocks : '%u'\n"
+ "fhardlimit : '%u'\n"
+ "fsoftlimit : '%u'\n"
+ "curfiles : '%u'\n"
+ "btimeleft : '%u'\n"
+ "ftimeleft : '%u'\n",
+ gq_rslt.GQR_STATUS,
+ gq_rslt.GQR_RQUOTA.rq_bsize,
+ gq_rslt.GQR_RQUOTA.rq_active?"yes":"no",
+ gq_rslt.GQR_RQUOTA.rq_bhardlimit,
+ gq_rslt.GQR_RQUOTA.rq_bsoftlimit,
+ gq_rslt.GQR_RQUOTA.rq_curblocks,
+ gq_rslt.GQR_RQUOTA.rq_fhardlimit,
+ gq_rslt.GQR_RQUOTA.rq_fsoftlimit,
+ gq_rslt.GQR_RQUOTA.rq_curfiles,
+ gq_rslt.GQR_RQUOTA.rq_btimeleft,
+ gq_rslt.GQR_RQUOTA.rq_ftimeleft));
+
+ /*
+ * gqr.status returns
+ * 1 if quotas exist,
+ * 2 if there is no quota set, and
+ * 3 if no permission to get the quota.
+ */
+
+ switch (gq_rslt.GQR_STATUS) {
+ case 1:
+ DEBUG(10, ("sys_get_nfs_quotas: Good quota data\n"));
+ dp->bsize = (uint64_t)gq_rslt.GQR_RQUOTA.rq_bsize;
+ dp->softlimit = gq_rslt.GQR_RQUOTA.rq_bsoftlimit;
+ dp->hardlimit = gq_rslt.GQR_RQUOTA.rq_bhardlimit;
+ dp->curblocks = gq_rslt.GQR_RQUOTA.rq_curblocks;
+ dp->isoftlimit = gq_rslt.GQR_RQUOTA.rq_fsoftlimit;
+ dp->ihardlimit = gq_rslt.GQR_RQUOTA.rq_fhardlimit;
+ dp->curinodes = gq_rslt.GQR_RQUOTA.rq_curfiles;
+ break;
+
+ case 2:
+ DEBUG(5, ("sys_get_nfs_quotas: No quota set\n"));
+ SMB_QUOTAS_SET_NO_LIMIT(dp);
+ break;
+
+ case 3:
+ DEBUG(3, ("sys_get_nfs_quotas: no permission to get quota\n"));
+ errno = EPERM;
+ ret = -1;
+ goto out;
+
+ default:
+ DEBUG(5, ("sys_get_nfs_quotas: Unknown remote quota status "
+ "code '%i'\n", gq_rslt.GQR_STATUS));
+ ret = -1;
+ goto out;
+ break;
+ }
+
+ dp->qflags = qflags;
+
+ ret = 0;
+
+out:
+ if (clnt) {
+ if (clnt->cl_auth) {
+ auth_destroy(clnt->cl_auth);
+ }
+ clnt_destroy(clnt);
+ }
+
+ SAFE_FREE(cutstr);
+
+ DEBUG(10, ("sys_get_nfs_quotas: finished\n" ));
+ return ret;
+}
+
+int sys_set_nfs_quota(const char *path, const char *bdev,
+ enum SMB_QUOTA_TYPE qtype,
+ unid_t id, SMB_DISK_QUOTA *dp)
+{
+ DEBUG(1, ("sys_set_nfs_quota : not supported\n"));
+ errno = ENOSYS;
+ return -1;
+}
+
+#else /* HAVE_NFS_QUOTAS */
+
+void dummy_sysquotas_nfs(void);
+void dummy_sysquotas_nfs(void) {}
+
+#endif /* HAVE_NFS_QUOTAS */
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