r1333: NFS Quota support from Dan Peterson.

(This used to be commit 609828444d9126d8a6e8ff43e4b3c19079a9eb56)

1 files changed, 203 insertions, 1 deletions

diff --git a/source3/smbd/quotas.c b/source3/smbd/quotas.c
index e439c1e571..3c4d4319f6 100644
--- a/source3/smbd/quotas.c
+++ b/source3/smbd/quotas.c
@@ -933,6 +933,176 @@ BOOL disk_quotas(const char *path, SMB_BIG_UINT *bsize, SMB_BIG_UINT *dfree, SMB
 #include <devnm.h>
 #endif
 
+#if defined(__FreeBSD__)
+
+#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 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)
+{
+	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);
+}
+
+/* Works on FreeBSD, too. :-) */
+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(len+1);
+	if (!cutstr)
+		return False;
+
+	memset(cutstr, '\0', len+1);
+	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, (const xdrproc_t) my_xdr_getquota_args, (caddr_t)&args, (const xdrproc_t) my_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));
+
+	if (D.dqb_bsoftlimit == 0)
+		D.dqb_bsoftlimit = D.dqb_bhardlimit;
+	if (D.dqb_bsoftlimit == 0)
+		return False;
+
+	*bsize = gqr.getquota_rslt_u.gqr_rquota.rq_bsize;
+	*dsize = D.dqb_bsoftlimit;
+
+	if (D.dqb_curblocks == D.dqb_curblocks == 1)
+		*bsize = DEV_BSIZE;
+
+	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 - default version
 ****************************************************************************/
@@ -976,10 +1146,42 @@ BOOL disk_quotas(const char *path, SMB_BIG_UINT *bsize, SMB_BIG_UINT *dfree, SMB
   {
     /* FreeBSD patches from Marty Moll <martym@arbor.edu> */
     gid_t egrp_id;
- 
+#if defined(__FreeBSD__)
+    SMB_DEV_T devno;
+    struct statfs *mnts;
+    SMB_STRUCT_STAT st;
+    int mntsize, i;
+    
+    if (sys_stat(path,&st) < 0)
+        return False;
+    devno = st.st_dev;
+
+    mntsize = getmntinfo(&mnts,MNT_NOWAIT);
+    if (mntsize <= 0)
+        return False;
+
+    for (i = 0; i < mntsize; i++) {
+        if (sys_stat(mnts[i].f_mntonname,&st) < 0)
+            return False;
+        if (st.st_dev == devno)
+            break;
+    }
+    if (i == mntsize)
+        return False;
+#endif
+    
     save_re_uid();
     set_effective_uid(0);
 
+#if defined(__FreeBSD__)
+    if (strcmp(mnts[i].f_fstypename,"nfs") == 0) {
+        BOOL retval;
+        retval = nfs_quotas(mnts[i].f_mntfromname,euser_id,bsize,dfree,dsize);
+        restore_re_uid();
+        return retval;
+    }
+#endif
+
     egrp_id = getegid();
     r= quotactl(path,QCMD(Q_GETQUOTA,USRQUOTA),euser_id,(char *) &D);