[CIFS] move cifs acl code to new file and fix build break

Signed-off-by: Steve French <sfrench@us.ibm.com>

5 files changed, 137 insertions, 109 deletions

diff --git a/fs/cifs/Makefile b/fs/cifs/Makefile
index 6ecd9d6ba3f..ff6ba8d823f 100644
--- a/fs/cifs/Makefile
+++ b/fs/cifs/Makefile
@@ -3,4 +3,4 @@
 #
 obj-$(CONFIG_CIFS) += cifs.o
 
-cifs-objs := cifsfs.o cifssmb.o cifs_debug.o connect.o dir.o file.o inode.o link.o misc.o netmisc.o smbdes.o smbencrypt.o transport.o asn1.o md4.o md5.o cifs_unicode.o nterr.o xattr.o cifsencrypt.o fcntl.o readdir.o ioctl.o sess.o export.o
+cifs-objs := cifsfs.o cifssmb.o cifs_debug.o connect.o dir.o file.o inode.o link.o misc.o netmisc.o smbdes.o smbencrypt.o transport.o asn1.o md4.o md5.o cifs_unicode.o nterr.o xattr.o cifsencrypt.o fcntl.o readdir.o ioctl.o sess.o export.o cifsacl.o
diff --git a/fs/cifs/cifsacl.c b/fs/cifs/cifsacl.c
new file mode 100644
index 00000000000..11ac13336ec
--- /dev/null
+++ b/fs/cifs/cifsacl.c
@@ -0,0 +1,134 @@
+/*
+ *   fs/cifs/cifsacl.c
+ *
+ *   Copyright (C) International Business Machines  Corp., 2007
+ *   Author(s): Steve French (sfrench@us.ibm.com)
+ *
+ *   Contains the routines for mapping CIFS/NTFS ACLs
+ *
+ *   This library is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU Lesser General Public License as published
+ *   by the Free Software Foundation; either version 2.1 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This library 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 Lesser General Public License for more details.
+ *
+ *   You should have received a copy of the GNU Lesser General Public License
+ *   along with this library; if not, write to the Free Software
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+/* security id for everyone */
+static const struct cifs_sid sid_everyone =
+		{1, 1, {0, 0, 0, 0, 0, 0}, {0, 0, 0, 0}};
+/* group users */
+static const struct cifs_sid sid_user =
+		{1, 2 , {0, 0, 0, 0, 0, 5}, {32, 545, 0, 0}};
+
+static int parse_sid(struct cifs_sid *psid, char *end_of_acl)
+{
+	/* BB need to add parm so we can store the SID BB */
+
+	/* validate that we do not go past end of acl */
+	if (end_of_acl < (char *)psid + sizeof(struct cifs_sid)) {
+		cERROR(1, ("ACL to small to parse SID"));
+		return -EINVAL;
+	}
+#ifdef CONFIG_CIFS_DEBUG2
+	cFYI(1, ("revision %d num_auth %d First subauth 0x%x",
+		psid->revision, psid->num_auth, psid->sub_auth[0]));
+
+	/* BB add length check to make sure that we do not have huge num auths
+	      and therefore go off the end */
+	cFYI(1, ("RID 0x%x", le32_to_cpu(psid->sub_auth[psid->num_auth])));
+#endif
+	return 0;
+}
+
+/* Convert CIFS ACL to POSIX form */
+int parse_sec_desc(struct cifs_ntsd *pntsd, int acl_len)
+{
+	int i;
+	int num_aces = 0;
+	int acl_size;
+	struct cifs_sid *owner_sid_ptr, *group_sid_ptr;
+	struct cifs_acl *dacl_ptr; /* no need for SACL ptr */
+	struct cifs_ntace **ppntace;
+	struct cifs_ace **ppace;
+	char *acl_base;
+	char *end_of_acl = ((char *)pntsd) + acl_len;
+
+	owner_sid_ptr = (struct cifs_sid *)((char *)pntsd +
+				cpu_to_le32(pntsd->osidoffset));
+	group_sid_ptr = (struct cifs_sid *)((char *)pntsd +
+				cpu_to_le32(pntsd->gsidoffset));
+	dacl_ptr = (struct cifs_acl *)((char *)pntsd +
+				cpu_to_le32(pntsd->dacloffset));
+#ifdef CONFIG_CIFS_DEBUG2
+	cFYI(1, ("revision %d type 0x%x ooffset 0x%x goffset 0x%x "
+		 "sacloffset 0x%x dacloffset 0x%x",
+		 pntsd->revision, pntsd->type,
+		 pntsd->osidoffset, pntsd->gsidoffset, pntsd->sacloffset,
+		 pntsd->dacloffset));
+#endif
+	rc = parse_sid(owner_sid_ptr, end_of_acl);
+	if (rc)
+		return rc;
+
+	rc = parse_sid(group_sid_ptr, end_of_acl);
+	if (rc)
+		return rc;
+
+/*	cifscred->uid = owner_sid_ptr->rid;
+	cifscred->gid = group_sid_ptr->rid;
+	memcpy((void *)(&(cifscred->osid)), (void *)owner_sid_ptr,
+			sizeof (struct cifs_sid));
+	memcpy((void *)(&(cifscred->gsid)), (void *)group_sid_ptr,
+			sizeof (struct cifs_sid)); */
+
+	num_aces = cpu_to_le32(dacl_ptr->num_aces);
+	cFYI(1, ("num aces %d", num_aces));
+	if (num_aces  > 0) {
+		ppntace = kmalloc(num_aces * sizeof(struct cifs_ntace *),
+				GFP_KERNEL);
+		ppace = kmalloc(num_aces * sizeof(struct cifs_ace *),
+				GFP_KERNEL);
+
+/*		cifscred->cecount = dacl_ptr->num_aces;
+		cifscred->ntaces = kmalloc(num_aces *
+				sizeof(struct cifs_ntace *), GFP_KERNEL);
+		cifscred->aces = kmalloc(num_aces *
+				sizeof(struct cifs_ace *), GFP_KERNEL);*/
+
+		acl_base = (char *)dacl_ptr;
+		acl_size = sizeof(struct cifs_acl);
+
+		for (i = 0; i < num_aces; ++i) {
+			ppntace[i] = (struct cifs_ntace *)
+						(acl_base + acl_size);
+			ppace[i] = (struct cifs_ace *)
+					((char *)ppntace[i] +
+					sizeof(struct cifs_ntace));
+
+/*			memcpy((void *)(&(cifscred->ntaces[i])),
+				(void *)ntace_ptrptr[i],
+				sizeof(struct cifs_ntace));
+			memcpy((void *)(&(cifscred->aces[i])),
+				(void *)ace_ptrptr[i],
+				sizeof(struct cifs_ace)); */
+
+			acl_base = (char *)ppntace[i];
+			acl_size = cpu_to_le32(ppntace[i]->size);
+#ifdef CONFIG_CIFS_DEBUG2
+			cFYI(1, ("ACE revision:%d", ppace[i]->revision));
+#endif
+		}
+		kfree(ppace);
+		kfree(ppntace);
+	}
+
+	return (0);
+}
diff --git a/fs/cifs/cifsacl.h b/fs/cifs/cifsacl.h
index 97d03dc8169..b975ae11303 100644
--- a/fs/cifs/cifsacl.h
+++ b/fs/cifs/cifsacl.h
@@ -1,7 +1,7 @@
 /*
  *   fs/cifs/cifsacl.h
  *
- *   Copyright (c) International Business Machines  Corp., 2005
+ *   Copyright (c) International Business Machines  Corp., 2007
  *   Author(s): Steve French (sfrench@us.ibm.com)
  *
  *   This library is free software; you can redistribute it and/or modify
diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h
index 4ffae9d9291..7dbb79b8dd5 100644
--- a/fs/cifs/cifsproto.h
+++ b/fs/cifs/cifsproto.h
@@ -310,6 +310,7 @@ extern void setup_ntlmv2_rsp(struct cifsSesInfo *, char *,
 #ifdef CONFIG_CIFS_WEAK_PW_HASH
 extern void calc_lanman_hash(struct cifsSesInfo *ses, char *lnm_session_key);
 #endif /* CIFS_WEAK_PW_HASH */
+extern int parse_sec_desc(struct cifs_ntsd *pntsd, int acl_len);
 extern int CIFSSMBCopy(int xid,
 			struct cifsTconInfo *source_tcon,
 			const char *fromName,
diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
index 46c2bb45512..cc05a26ab07 100644
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -3040,113 +3040,6 @@ GetExtAttrOut:
 
 #endif /* CONFIG_POSIX */
 
-
-/* security id for everyone */
-static const struct cifs_sid sid_everyone =
-		{1, 1, {0, 0, 0, 0, 0, 0}, {0, 0, 0, 0}};
-/* group users */
-static const struct cifs_sid sid_user =
-		{1, 2 , {0, 0, 0, 0, 0, 5}, {32, 545, 0, 0}};
-
-static void parse_sid(struct cifs_sid * psid, char * end_of_acl)
-{
-	/* BB need to add parm so we can store the SID BB */
-
-	/* validate that we do not go past end of acl */
-	if (end_of_acl < (char *)psid + sizeof(struct cifs_sid)) {
-		cERROR(1, ("ACL to small to parse SID"));
-		return;
-	}
-#ifdef CONFIG_CIFS_DEBUG2
-	cFYI(1, ("revision %d num_auth %d First subauth 0x%x",
-		psid->revision, psid->num_auth, psid->sub_auth[0]));
-
-	/* BB add length check to make sure that we do not have huge num auths
-	      and therefore go off the end */
-	cFYI(1, ("RID 0x%x", le32_to_cpu(psid->sub_auth[psid->num_auth])));
-#endif
-	return;
-}
-
-/* Convert CIFS ACL to POSIX form */
-static int parse_sec_desc(struct cifs_ntsd *pntsd, int acl_len)
-{
-	int i;
-	int num_aces = 0;
-	int acl_size;
-	struct cifs_sid *owner_sid_ptr, *group_sid_ptr;
-	struct cifs_acl *dacl_ptr; /* no need for SACL ptr */
-	struct cifs_ntace **ppntace;
-	struct cifs_ace **ppace;
-	char *acl_base;
-	char *end_of_acl = ((char *)pntsd) + acl_len;
-
-	owner_sid_ptr = (struct cifs_sid *)((char *)pntsd +
-				cpu_to_le32(pntsd->osidoffset));
-	group_sid_ptr = (struct cifs_sid *)((char *)pntsd +
-				cpu_to_le32(pntsd->gsidoffset));
-	dacl_ptr = (struct cifs_acl *)((char *)pntsd +
-				cpu_to_le32(pntsd->dacloffset));
-#ifdef CONFIG_CIFS_DEBUG2
-	cFYI(1,("revision %d type 0x%x ooffset 0x%x goffset 0x%x "
-		"sacloffset 0x%x dacloffset 0x%x", pntsd->revision, pntsd->type,
-		pntsd->osidoffset, pntsd->gsidoffset, pntsd->sacloffset,
-		pntsd->dacloffset));
-#endif
-	parse_sid(owner_sid_ptr, end_of_acl);
-	parse_sid(group_sid_ptr, end_of_acl);
-
-/*	cifscred->uid = owner_sid_ptr->rid;
-	cifscred->gid = group_sid_ptr->rid;
-	memcpy((void *)(&(cifscred->osid)), (void *)owner_sid_ptr,
-			sizeof (struct cifs_sid));
-	memcpy((void *)(&(cifscred->gsid)), (void *)group_sid_ptr,
-			sizeof (struct cifs_sid)); */
-
-	num_aces = cpu_to_le32(dacl_ptr->num_aces);
-	cFYI(1, ("num aces %d", num_aces));
-	if (num_aces  > 0) {
-		ppntace = kmalloc(num_aces * sizeof(struct cifs_ntace *),
-				GFP_KERNEL);
-		ppace = kmalloc(num_aces * sizeof(struct cifs_ace *),
-				GFP_KERNEL);
-
-/*		cifscred->cecount = dacl_ptr->num_aces;
-		cifscred->ntaces = kmalloc(num_aces *
-				sizeof(struct cifs_ntace *), GFP_KERNEL);
-		cifscred->aces = kmalloc(num_aces *
-				sizeof(struct cifs_ace *), GFP_KERNEL);*/
-
-		acl_base = (char *)dacl_ptr;
-		acl_size = sizeof(struct cifs_acl);
-
-		for (i = 0; i < num_aces; ++i) {
-			ppntace[i] = (struct cifs_ntace *)
-						(acl_base + acl_size);
-			ppace[i] = (struct cifs_ace *)
-					((char *)ppntace[i] +
-					sizeof(struct cifs_ntace));
-
-/*			memcpy((void *)(&(cifscred->ntaces[i])),
-				(void *)ntace_ptrptr[i],
-				sizeof(struct cifs_ntace));
-			memcpy((void *)(&(cifscred->aces[i])),
-				(void *)ace_ptrptr[i],
-				sizeof(struct cifs_ace)); */
-
-			acl_base = (char *)ppntace[i];
-			acl_size = cpu_to_le32(ppntace[i]->size);
-#ifdef CONFIG_CIFS_DEBUG2
-			cFYI(1, ("ACE revision:%d", ppace[i]->revision));
-		}
-#endif
-		kfree(ppace);
-		kfree(ppntace);
-	}
-
-	return (0);
-}
-
 /* Get Security Descriptor (by handle) from remote server for a file or dir */
 int
 CIFSSMBGetCIFSACL(const int xid, struct cifsTconInfo *tcon, __u16 fid,