Commit bcb02034 authored by Steve French's avatar Steve French
Browse files

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



Signed-off-by: default avatarSteve French <sfrench@us.ibm.com>
parent 442aa310

fs/cifs/Makefile

+1 −1
Original line number Diff line number Diff line
@@ -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

fs/cifs/cifsacl.c

0 → 100644
+134 −0
Original line number Diff line number Diff line 
/*

 *   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);

}

fs/cifs/cifsacl.h

+1 −1
Original line number Diff line number Diff line 
/*

 *   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

fs/cifs/cifsproto.h

+1 −0
Original line number Diff line number Diff line
@@ -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,

fs/cifs/cifssmb.c

+0 −107
Original line number Diff line number Diff line
@@ -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,

CRA Git | Maintained and supported by SUSTech CRA and CCSE