PSARC/2007/218 caller_context_t in all VOPs

PSARC/2007/227 VFS Feature Registration and ACL on Create
PSARC/2007/244 ZFS Case-insensitive support
PSARC/2007/315 Extensible Attribute Interfaces
PSARC/2007/394 ls(1) new command line options '-/' and '-%': CIFS system attributes support
PSARC/2007/403 Modified Access Checks for CIFS
PSARC/2007/410 Add system attribute support to chmod(1)
PSARC/2007/432 CIFS system attributes support for cp(1), pack(1), unpack(1), compress(1) and uncompress(1)
PSARC/2007/444 Rescind SETTABLE Attribute
PSARC/2007/459 CIFS system attributes support for cpio(1), pax(1), tar(1)
PSARC/2007/546 Update utilities to match CIFS system attributes changes.
PSARC/2007/560 ZFS sharesmb property
4890717 want append-only files
6417428 Case-insensitive file system name lookup to support CIFS
6417435 DOS attributes and additional timestamps to support for CIFS
6417442 File system quarantined and modified attributes to support an integrated Anti-Virus service
6417453 FS boolean property for rejecting/allowing invalid UTF-8 sequences in file names
6473733 RFE: Need support for open-deny modes
6473755 RFE:  Need ability to reconcile oplock and delegation conflicts
6494624 sharemgr needs to support CIFS shares better
6546705 All vnode operations need to pass caller_context_t
6546706 Need VOP_SETATTR/VOP_GETATTR to support new, optional attributes
6546893 Solaris system attribute support
6550962 ZFS ACL inheritance needs to be enhanced to support Automatic Inheritance
6553589 RFE: VFS Feature Registration facility
6553770 RFE: ZFS support for ACL-on-CREATE (PSARC 2007/227)
6565581 ls(1) should support file system attributes proposed in PSARC/2007/315
6566784 NTFS streams are not copied along with the files.
6576205 cp(1), pack(1) and compress(1) should support file system attributes proposed in PSARC/2007/315
6578875 RFE: kernel interfaces for nbmand need improvement
6578883 RFE: VOP_SHRLOCK needs additional access types
6578885 chmod(1) should support file system attributes proposed in PSARC/2007/315
6578886 RFE: disallow nbmand state to change on remount
6583349 ACL parser needs to support audit/alarm ACE types
6590347 tar(1) should support filesystem attributes proposed in PSARC/2007/315
6597357 *tar* xv@ doesn't show the hidden directory even though it is restored
6597360 *tar* should re-init xattr info if openat() fails during extraction of and extended attribute
6597368 *tar* cannot restore hard linked extended attributes
6597374 *tar* doesn't display "x " when hard linked attributes are restored
6597375 *tar* extended attribute header off by one
6614861 *cpio* incorrectly archives extended system attributes with -@
6614896 *pax* incorrectly archives extended system attributes with -@
6615225 *tar* incorrectly archives extended system attributes with -@
6617183 CIFS Service - PSARC 2006/715

1 files changed, 120 insertions, 0 deletions

diff --git a/usr/src/lib/smbsrv/libsmb/common/smb_ctxbuf.c b/usr/src/lib/smbsrv/libsmb/common/smb_ctxbuf.c
new file mode 100644
index 0000000000..2b51f2b6af
--- /dev/null
+++ b/usr/src/lib/smbsrv/libsmb/common/smb_ctxbuf.c
@@ -0,0 +1,120 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (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 2007 Sun Microsystems, Inc.  All rights reserved.
+ * Use is subject to license terms.
+ */
+
+/*
+ * Buffer manipulation routines. These routines can be used to format
+ * data within a data buffer without worrying about overrunning the
+ * buffer.
+ *
+ * A ctxbuf_t structure is used to track the current location within
+ * the buffer. The ctxbuf_init() must be called first to initialize the
+ * context structure. ctxbuf_printf() can then be called to fill the buffer.
+ * ctxbuf_printf will discard any data that would overrun the buffer and
+ * the buffer will always be null terminated.
+ */
+
+#pragma ident	"%Z%%M%	%I%	%E% SMI"
+
+#include <stdio.h>
+#include <stdarg.h>
+#include <smbsrv/libsmb.h>
+
+/*
+ * smb_ctxbuf_init
+ *
+ * Initialize the buffer context structure.
+ * This must be called before any of the other
+ * buffer routines can be used.
+ *
+ * Returns -1 if invalid parameters, 0 otherwise
+ */
+int
+smb_ctxbuf_init(smb_ctxbuf_t *ctx, unsigned char *buf, size_t buflen)
+{
+	if (ctx == 0 || buf == 0 || buflen == 0)
+		return (-1);
+
+	buf[0] = '\0';
+
+	ctx->basep = buf;
+	ctx->curp = buf;
+	ctx->endp = &buf[buflen];
+
+	return (0);
+}
+
+/*
+ * smb_ctxbuf_len
+ *
+ * Return the amount of data stored in the buffer,
+ * excluding the terminating null character. Similar
+ * to strlen()
+ *
+ * Returns 0 if the ctx is invalid.
+ */
+int
+smb_ctxbuf_len(smb_ctxbuf_t *ctx)
+{
+	if (ctx == 0 || ctx->basep == 0 ||
+	    ctx->curp == 0 || ctx->endp == 0)
+		return (0);
+	else
+		/*LINTED E_PTRDIFF_OVERFLOW*/
+		return (ctx->curp - ctx->basep);
+}
+
+/*
+ * smb_ctxbuf_printf
+ *
+ * Move formatted output (based on fmt string) to the buffer
+ * identified in ctxbuf.  Any output characters beyond the buffer
+ * are discarded and a null character is written at the end of the
+ * characters actually written.
+ *
+ * Returns
+ * Always return the number of bytes actually written (excluding the
+ * terminating null).
+ */
+int
+smb_ctxbuf_printf(smb_ctxbuf_t   *ctx, const char *fmt, ...)
+{
+	int n;
+	va_list args;
+
+	if (ctx == 0 || ctx->basep == 0 ||
+	    ctx->curp == 0 || ctx->endp == 0)
+		return (-1);
+
+	va_start(args, fmt);
+	/*LINTED E_PTRDIFF_OVERFLOW*/
+	n = vsnprintf((char *)ctx->curp, ctx->endp-ctx->curp, fmt, args);
+	ctx->curp += n;
+	va_end(args);
+
+	/*
+	 * return the number of bytes moved into the buffer.
+	 */
+	return (n);
+}