9877 Want t_koptmgmt in kTLI

Reviewed by: Evan Layton <evan.layton@nexenta.com>
Reviewed by: Matt Barden <matt.barden@nexenta.com>
Reviewed by: Garrett D'Amore <garrett@damore.org>
Approved by: Dan McDonald <danmcd@joyent.com>

4 files changed, 161 insertions, 5 deletions

diff --git a/usr/src/uts/common/Makefile.files b/usr/src/uts/common/Makefile.files
index 64322a8715..370d03121b 100644
--- a/usr/src/uts/common/Makefile.files
+++ b/usr/src/uts/common/Makefile.files
@@ -817,7 +817,7 @@ SCSI_VHCI_F_TPGS_OBJS +=	tpgs.o
 
 SCSI_VHCI_F_ASYM_SUN_OBJS +=	asym_sun.o
 
-SCSI_VHCI_F_SYM_HDS_OBJS += 	sym_hds.o
+SCSI_VHCI_F_SYM_HDS_OBJS +=	sym_hds.o
 
 SCSI_VHCI_F_TAPE_OBJS +=	tape.o
 
@@ -1091,7 +1091,7 @@ NFS_OBJS +=	nfs_client.o	nfs_common.o	nfs_dump.o \
 		nfs_xdr.o	nfs_sys.o	nfs_strerror.o \
 		nfs3_vfsops.o	nfs3_vnops.o	nfs3_xdr.o \
 		nfs_acl_vnops.o	nfs_acl_xdr.o	nfs4_vfsops.o \
-		nfs4_vnops.o	nfs4_xdr.o 	nfs4_idmap.o \
+		nfs4_vnops.o	nfs4_xdr.o	nfs4_idmap.o \
 		nfs4_shadow.o	nfs4_subr.o \
 		nfs4_attr.o	nfs4_rnode.o	nfs4_client.o \
 		nfs4_acache.o	nfs4_common.o	nfs4_client_state.o \
@@ -1259,7 +1259,7 @@ UDFS_OBJS +=	udf_alloc.o	udf_bmap.o	udf_dir.o	\
 		udf_inode.o	udf_subr.o	udf_vfsops.o	\
 		udf_vnops.o
 
-UFS_OBJS +=	ufs_alloc.o	ufs_bmap.o	ufs_dir.o 	ufs_xattr.o \
+UFS_OBJS +=	ufs_alloc.o	ufs_bmap.o	ufs_dir.o	ufs_xattr.o \
 		ufs_inode.o	ufs_subr.o	ufs_tables.o	ufs_vfsops.o \
 		ufs_vnops.o	quota.o		quotacalls.o	quota_ufs.o \
 		ufs_filio.o	ufs_lockfs.o	ufs_thread.o	ufs_trans.o \
@@ -1494,8 +1494,8 @@ KLMOPS_OBJS +=	klmops.o
 
 TLIMOD_OBJS +=	tlimod.o	t_kalloc.o	t_kbind.o	t_kclose.o \
 		t_kconnect.o	t_kfree.o	t_kgtstate.o	t_kopen.o \
-		t_krcvudat.o	t_ksndudat.o	t_kspoll.o	t_kunbind.o \
-		t_kutil.o
+		t_koptmgmt.o	t_krcvudat.o	t_ksndudat.o	t_kspoll.o \
+		t_kunbind.o	t_kutil.o
 
 RLMOD_OBJS += rlmod.o
 
diff --git a/usr/src/uts/common/ktli/t_koptmgmt.c b/usr/src/uts/common/ktli/t_koptmgmt.c
new file mode 100644
index 0000000000..e217c4dfcb
--- /dev/null
+++ b/usr/src/uts/common/ktli/t_koptmgmt.c
@@ -0,0 +1,154 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License, Version 1.0 only
+ * (the "License").  You may not use this file except in compliance
+ * with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+
+/*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
+/*	  All Rights Reserved	*/
+
+/*
+ * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
+ * Use is subject to license terms.
+ */
+
+/*
+ * Copyright 2018 Nexenta Systems, Inc.  All rights reserved.
+ */
+
+/*
+ * kTLI variant of t_optmgmt(3NSL)
+ * Returns 0 on success or an errno value.
+ * Similar to libnsl t_optmgmt.c
+ *
+ * Note: This expects the caller's struct t_optmgmt to contain the
+ * XTI version of struct T_opthdr (used with T_OPTMGMT_REQ == 27)
+ * not the old "struct opthdr" (used with T_SVR4_OPTMGMT_REQ == 9)
+ */
+
+#include <sys/param.h>
+#include <sys/types.h>
+#include <sys/proc.h>
+#include <sys/file.h>
+#include <sys/user.h>
+#include <sys/vnode.h>
+#include <sys/errno.h>
+#include <sys/stream.h>
+#include <sys/ioctl.h>
+#include <sys/stropts.h>
+#include <sys/strsubr.h>
+#define	_SUN_TPI_VERSION 2
+#include <sys/tihdr.h>
+#include <sys/timod.h>
+#include <sys/tiuser.h>
+#include <sys/t_kuser.h>
+#include <sys/kmem.h>
+
+int
+t_koptmgmt(TIUSER *tiptr, struct t_optmgmt *req, struct t_optmgmt *ret)
+{
+	struct strioctl		strioc;
+	struct T_optmgmt_req	*opt_req;
+	struct T_optmgmt_ack	*opt_ack;
+	file_t			*fp;
+	vnode_t			*vp;
+	char			*ctlbuf = NULL;
+	char			*opt_data;
+	t_scalar_t		optlen;
+	int			ctlsize;
+	int			retval;
+	int			error;
+
+	fp = tiptr->fp;
+	vp = fp->f_vnode;
+
+	optlen = req->opt.len;
+	if (optlen > 0) {
+		if (req->opt.buf == NULL)
+			return (EINVAL);
+		if (optlen < (t_scalar_t)sizeof (struct T_opthdr)) {
+			/* option buffer should atleast have an t_opthdr */
+			return (EINVAL);
+		}
+		/* sanity limit */
+		if (optlen > 4096) {
+			return (EINVAL);
+		}
+	}
+
+	ctlsize = sizeof (*opt_req) + optlen;
+	ctlbuf = kmem_alloc(ctlsize, KM_SLEEP);
+
+	/* LINTED E_BAD_PTR_CAST_ALIGN */
+	opt_req = (struct T_optmgmt_req *)ctlbuf;
+	opt_req->PRIM_type = T_OPTMGMT_REQ;
+	opt_req->MGMT_flags = req->flags;
+	opt_req->OPT_length = optlen;
+	opt_req->OPT_offset = sizeof (*opt_req);
+	if (optlen > 0) {
+		opt_data = ctlbuf + sizeof (*opt_req);
+		bcopy(req->opt.buf, opt_data, optlen);
+	}
+
+	strioc.ic_cmd = TI_OPTMGMT;
+	strioc.ic_timout = 0;
+	strioc.ic_dp = ctlbuf;
+	strioc.ic_len = ctlsize;
+
+	error = strdoioctl(vp->v_stream, &strioc, FNATIVE, K_TO_K,
+	    fp->f_cred, &retval);
+	if (error)
+		goto errout;
+
+	if (retval) {
+		if ((retval & 0xff) == TSYSERR)
+			error = (retval >> 8) & 0xff;
+		else
+			error = t_tlitosyserr(retval & 0xff);
+		goto errout;
+	}
+
+	if (strioc.ic_len < sizeof (struct T_optmgmt_ack)) {
+		error = EPROTO;
+		goto errout;
+	}
+
+	/* LINTED pointer cast */
+	opt_ack = (struct T_optmgmt_ack *)ctlbuf;
+	if (opt_ack->PRIM_type != T_OPTMGMT_ACK) {
+		error = EPROTO;
+		goto errout;
+	}
+
+	if (ret->opt.maxlen > 0) {
+		if (opt_ack->OPT_length > ret->opt.maxlen) {
+			error = EMSGSIZE;
+			goto errout;
+		}
+		ret->opt.len = opt_ack->OPT_offset;
+		opt_data = ctlbuf + opt_ack->OPT_offset;
+		bcopy(opt_data, ret->opt.buf, ret->opt.len);
+	}
+	ret->flags = opt_ack->MGMT_flags;
+
+errout:
+	if (ctlbuf != NULL)
+		kmem_free(ctlbuf, ctlsize);
+	return (error);
+}
diff --git a/usr/src/uts/intel/ia32/ml/modstubs.s b/usr/src/uts/intel/ia32/ml/modstubs.s
index d38b4e87c9..466aa4f4b5 100644
--- a/usr/src/uts/intel/ia32/ml/modstubs.s
+++ b/usr/src/uts/intel/ia32/ml/modstubs.s
@@ -638,6 +638,7 @@ fcnname/**/_info:							\
 	NO_UNLOAD_STUB(tlimod,	t_kclose,		nomod_zero);
 	NO_UNLOAD_STUB(tlimod,	t_kspoll,		nomod_zero);
 	NO_UNLOAD_STUB(tlimod,	t_kfree,		nomod_zero);
+	NO_UNLOAD_STUB(tlimod,	t_koptmgmt,		nomod_zero);
 	END_MODULE(tlimod);
 #endif
 
diff --git a/usr/src/uts/sparc/ml/modstubs.s b/usr/src/uts/sparc/ml/modstubs.s
index 1641c734da..e3db778fed 100644
--- a/usr/src/uts/sparc/ml/modstubs.s
+++ b/usr/src/uts/sparc/ml/modstubs.s
@@ -527,6 +527,7 @@ stubs_base:
 	NO_UNLOAD_STUB(tlimod, t_kclose,  	nomod_zero);
 	NO_UNLOAD_STUB(tlimod, t_kspoll,  	nomod_zero);
 	NO_UNLOAD_STUB(tlimod, t_kfree,  	nomod_zero);
+	NO_UNLOAD_STUB(tlimod, t_koptmgmt,	nomod_zero);
 	END_MODULE(tlimod);
 #endif