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Diffstat (limited to 'fs/cifs/smb2inode.c')
-rw-r--r--fs/cifs/smb2inode.c449
1 files changed, 0 insertions, 449 deletions
diff --git a/fs/cifs/smb2inode.c b/fs/cifs/smb2inode.c
deleted file mode 100644
index f14533da3a93..000000000000
--- a/fs/cifs/smb2inode.c
+++ /dev/null
@@ -1,449 +0,0 @@
-/*
- * fs/cifs/smb2inode.c
- *
- * Copyright (C) International Business Machines Corp., 2002, 2011
- * Etersoft, 2012
- * Author(s): Pavel Shilovsky (pshilovsky@samba.org),
- * Steve French (sfrench@us.ibm.com)
- *
- * 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
- */
-#include <linux/fs.h>
-#include <linux/stat.h>
-#include <linux/slab.h>
-#include <linux/pagemap.h>
-#include <asm/div64.h>
-#include "cifsfs.h"
-#include "cifspdu.h"
-#include "cifsglob.h"
-#include "cifsproto.h"
-#include "cifs_debug.h"
-#include "cifs_fs_sb.h"
-#include "cifs_unicode.h"
-#include "fscache.h"
-#include "smb2glob.h"
-#include "smb2pdu.h"
-#include "smb2proto.h"
-
-static int
-smb2_compound_op(const unsigned int xid, struct cifs_tcon *tcon,
- struct cifs_sb_info *cifs_sb, const char *full_path,
- __u32 desired_access, __u32 create_disposition,
- __u32 create_options, void *ptr, int command)
-{
- int rc;
- __le16 *utf16_path = NULL;
- __u8 oplock = SMB2_OPLOCK_LEVEL_NONE;
- struct cifs_open_parms oparms;
- struct cifs_fid fid;
- struct cifs_ses *ses = tcon->ses;
- int num_rqst = 0;
- struct smb_rqst rqst[3];
- int resp_buftype[3];
- struct kvec rsp_iov[3];
- struct kvec open_iov[SMB2_CREATE_IOV_SIZE];
- struct kvec qi_iov[1];
- struct kvec si_iov[SMB2_SET_INFO_IOV_SIZE];
- struct kvec close_iov[1];
- struct smb2_query_info_rsp *qi_rsp = NULL;
- int flags = 0;
- __u8 delete_pending[8] = {1, 0, 0, 0, 0, 0, 0, 0};
- unsigned int size[2];
- void *data[2];
- struct smb2_file_rename_info rename_info;
- struct smb2_file_link_info link_info;
- int len;
-
- if (smb3_encryption_required(tcon))
- flags |= CIFS_TRANSFORM_REQ;
-
- memset(rqst, 0, sizeof(rqst));
- resp_buftype[0] = resp_buftype[1] = resp_buftype[2] = CIFS_NO_BUFFER;
- memset(rsp_iov, 0, sizeof(rsp_iov));
-
- /* Open */
- utf16_path = cifs_convert_path_to_utf16(full_path, cifs_sb);
- if (!utf16_path)
- return -ENOMEM;
-
- oparms.tcon = tcon;
- oparms.desired_access = desired_access;
- oparms.disposition = create_disposition;
- oparms.create_options = create_options;
- if (backup_cred(cifs_sb))
- oparms.create_options |= CREATE_OPEN_BACKUP_INTENT;
- oparms.fid = &fid;
- oparms.reconnect = false;
-
- memset(&open_iov, 0, sizeof(open_iov));
- rqst[num_rqst].rq_iov = open_iov;
- rqst[num_rqst].rq_nvec = SMB2_CREATE_IOV_SIZE;
- rc = SMB2_open_init(tcon, &rqst[num_rqst], &oplock, &oparms,
- utf16_path);
- kfree(utf16_path);
- if (rc)
- goto finished;
-
- smb2_set_next_command(tcon, &rqst[num_rqst++]);
-
- /* Operation */
- switch (command) {
- case SMB2_OP_QUERY_INFO:
- memset(&qi_iov, 0, sizeof(qi_iov));
- rqst[num_rqst].rq_iov = qi_iov;
- rqst[num_rqst].rq_nvec = 1;
-
- rc = SMB2_query_info_init(tcon, &rqst[num_rqst], COMPOUND_FID,
- COMPOUND_FID, FILE_ALL_INFORMATION,
- SMB2_O_INFO_FILE, 0,
- sizeof(struct smb2_file_all_info) +
- PATH_MAX * 2, 0, NULL);
- smb2_set_next_command(tcon, &rqst[num_rqst]);
- smb2_set_related(&rqst[num_rqst++]);
- break;
- case SMB2_OP_DELETE:
- break;
- case SMB2_OP_MKDIR:
- /*
- * Directories are created through parameters in the
- * SMB2_open() call.
- */
- break;
- case SMB2_OP_RMDIR:
- memset(&si_iov, 0, sizeof(si_iov));
- rqst[num_rqst].rq_iov = si_iov;
- rqst[num_rqst].rq_nvec = 1;
-
- size[0] = 1; /* sizeof __u8 See MS-FSCC section 2.4.11 */
- data[0] = &delete_pending[0];
-
- rc = SMB2_set_info_init(tcon, &rqst[num_rqst], COMPOUND_FID,
- COMPOUND_FID, current->tgid,
- FILE_DISPOSITION_INFORMATION,
- SMB2_O_INFO_FILE, 0, data, size);
- smb2_set_next_command(tcon, &rqst[num_rqst]);
- smb2_set_related(&rqst[num_rqst++]);
- break;
- case SMB2_OP_SET_EOF:
- memset(&si_iov, 0, sizeof(si_iov));
- rqst[num_rqst].rq_iov = si_iov;
- rqst[num_rqst].rq_nvec = 1;
-
- size[0] = 8; /* sizeof __le64 */
- data[0] = ptr;
-
- rc = SMB2_set_info_init(tcon, &rqst[num_rqst], COMPOUND_FID,
- COMPOUND_FID, current->tgid,
- FILE_END_OF_FILE_INFORMATION,
- SMB2_O_INFO_FILE, 0, data, size);
- smb2_set_next_command(tcon, &rqst[num_rqst]);
- smb2_set_related(&rqst[num_rqst++]);
- break;
- case SMB2_OP_SET_INFO:
- memset(&si_iov, 0, sizeof(si_iov));
- rqst[num_rqst].rq_iov = si_iov;
- rqst[num_rqst].rq_nvec = 1;
-
-
- size[0] = sizeof(FILE_BASIC_INFO);
- data[0] = ptr;
-
- rc = SMB2_set_info_init(tcon, &rqst[num_rqst], COMPOUND_FID,
- COMPOUND_FID, current->tgid,
- FILE_BASIC_INFORMATION,
- SMB2_O_INFO_FILE, 0, data, size);
- smb2_set_next_command(tcon, &rqst[num_rqst]);
- smb2_set_related(&rqst[num_rqst++]);
- break;
- case SMB2_OP_RENAME:
- memset(&si_iov, 0, sizeof(si_iov));
- rqst[num_rqst].rq_iov = si_iov;
- rqst[num_rqst].rq_nvec = 2;
-
- len = (2 * UniStrnlen((wchar_t *)ptr, PATH_MAX));
-
- rename_info.ReplaceIfExists = 1;
- rename_info.RootDirectory = 0;
- rename_info.FileNameLength = cpu_to_le32(len);
-
- size[0] = sizeof(struct smb2_file_rename_info);
- data[0] = &rename_info;
-
- size[1] = len + 2 /* null */;
- data[1] = (__le16 *)ptr;
-
- rc = SMB2_set_info_init(tcon, &rqst[num_rqst], COMPOUND_FID,
- COMPOUND_FID, current->tgid,
- FILE_RENAME_INFORMATION,
- SMB2_O_INFO_FILE, 0, data, size);
- smb2_set_next_command(tcon, &rqst[num_rqst]);
- smb2_set_related(&rqst[num_rqst++]);
- break;
- case SMB2_OP_HARDLINK:
- memset(&si_iov, 0, sizeof(si_iov));
- rqst[num_rqst].rq_iov = si_iov;
- rqst[num_rqst].rq_nvec = 2;
-
- len = (2 * UniStrnlen((wchar_t *)ptr, PATH_MAX));
-
- link_info.ReplaceIfExists = 0;
- link_info.RootDirectory = 0;
- link_info.FileNameLength = cpu_to_le32(len);
-
- size[0] = sizeof(struct smb2_file_link_info);
- data[0] = &link_info;
-
- size[1] = len + 2 /* null */;
- data[1] = (__le16 *)ptr;
-
- rc = SMB2_set_info_init(tcon, &rqst[num_rqst], COMPOUND_FID,
- COMPOUND_FID, current->tgid,
- FILE_LINK_INFORMATION,
- SMB2_O_INFO_FILE, 0, data, size);
- smb2_set_next_command(tcon, &rqst[num_rqst]);
- smb2_set_related(&rqst[num_rqst++]);
- break;
- default:
- cifs_dbg(VFS, "Invalid command\n");
- rc = -EINVAL;
- }
- if (rc)
- goto finished;
-
- /* Close */
- memset(&close_iov, 0, sizeof(close_iov));
- rqst[num_rqst].rq_iov = close_iov;
- rqst[num_rqst].rq_nvec = 1;
- rc = SMB2_close_init(tcon, &rqst[num_rqst], COMPOUND_FID,
- COMPOUND_FID);
- smb2_set_related(&rqst[num_rqst++]);
- if (rc)
- goto finished;
-
- rc = compound_send_recv(xid, ses, flags, num_rqst, rqst,
- resp_buftype, rsp_iov);
-
- finished:
- SMB2_open_free(&rqst[0]);
- switch (command) {
- case SMB2_OP_QUERY_INFO:
- if (rc == 0) {
- qi_rsp = (struct smb2_query_info_rsp *)
- rsp_iov[1].iov_base;
- rc = smb2_validate_and_copy_iov(
- le16_to_cpu(qi_rsp->OutputBufferOffset),
- le32_to_cpu(qi_rsp->OutputBufferLength),
- &rsp_iov[1], sizeof(struct smb2_file_all_info),
- ptr);
- }
- if (rqst[1].rq_iov)
- SMB2_query_info_free(&rqst[1]);
- if (rqst[2].rq_iov)
- SMB2_close_free(&rqst[2]);
- break;
- case SMB2_OP_DELETE:
- case SMB2_OP_MKDIR:
- if (rqst[1].rq_iov)
- SMB2_close_free(&rqst[1]);
- break;
- case SMB2_OP_HARDLINK:
- case SMB2_OP_RENAME:
- case SMB2_OP_RMDIR:
- case SMB2_OP_SET_EOF:
- case SMB2_OP_SET_INFO:
- if (rqst[1].rq_iov)
- SMB2_set_info_free(&rqst[1]);
- if (rqst[2].rq_iov)
- SMB2_close_free(&rqst[2]);
- break;
- }
- free_rsp_buf(resp_buftype[0], rsp_iov[0].iov_base);
- free_rsp_buf(resp_buftype[1], rsp_iov[1].iov_base);
- free_rsp_buf(resp_buftype[2], rsp_iov[2].iov_base);
- return rc;
-}
-
-void
-move_smb2_info_to_cifs(FILE_ALL_INFO *dst, struct smb2_file_all_info *src)
-{
- memcpy(dst, src, (size_t)(&src->CurrentByteOffset) - (size_t)src);
- dst->CurrentByteOffset = src->CurrentByteOffset;
- dst->Mode = src->Mode;
- dst->AlignmentRequirement = src->AlignmentRequirement;
- dst->IndexNumber1 = 0; /* we don't use it */
-}
-
-int
-smb2_query_path_info(const unsigned int xid, struct cifs_tcon *tcon,
- struct cifs_sb_info *cifs_sb, const char *full_path,
- FILE_ALL_INFO *data, bool *adjust_tz, bool *symlink)
-{
- int rc;
- struct smb2_file_all_info *smb2_data;
- __u32 create_options = 0;
-
- *adjust_tz = false;
- *symlink = false;
-
- smb2_data = kzalloc(sizeof(struct smb2_file_all_info) + PATH_MAX * 2,
- GFP_KERNEL);
- if (smb2_data == NULL)
- return -ENOMEM;
- if (backup_cred(cifs_sb))
- create_options |= CREATE_OPEN_BACKUP_INTENT;
-
- rc = smb2_compound_op(xid, tcon, cifs_sb, full_path,
- FILE_READ_ATTRIBUTES, FILE_OPEN, create_options,
- smb2_data, SMB2_OP_QUERY_INFO);
- if (rc == -EOPNOTSUPP) {
- *symlink = true;
- create_options |= OPEN_REPARSE_POINT;
-
- /* Failed on a symbolic link - query a reparse point info */
- rc = smb2_compound_op(xid, tcon, cifs_sb, full_path,
- FILE_READ_ATTRIBUTES, FILE_OPEN,
- create_options, smb2_data,
- SMB2_OP_QUERY_INFO);
- }
- if (rc)
- goto out;
-
- move_smb2_info_to_cifs(data, smb2_data);
-out:
- kfree(smb2_data);
- return rc;
-}
-
-int
-smb2_mkdir(const unsigned int xid, struct cifs_tcon *tcon, const char *name,
- struct cifs_sb_info *cifs_sb)
-{
- return smb2_compound_op(xid, tcon, cifs_sb, name,
- FILE_WRITE_ATTRIBUTES, FILE_CREATE,
- CREATE_NOT_FILE, NULL, SMB2_OP_MKDIR);
-}
-
-void
-smb2_mkdir_setinfo(struct inode *inode, const char *name,
- struct cifs_sb_info *cifs_sb, struct cifs_tcon *tcon,
- const unsigned int xid)
-{
- FILE_BASIC_INFO data;
- struct cifsInodeInfo *cifs_i;
- u32 dosattrs;
- int tmprc;
-
- memset(&data, 0, sizeof(data));
- cifs_i = CIFS_I(inode);
- dosattrs = cifs_i->cifsAttrs | ATTR_READONLY;
- data.Attributes = cpu_to_le32(dosattrs);
- tmprc = smb2_compound_op(xid, tcon, cifs_sb, name,
- FILE_WRITE_ATTRIBUTES, FILE_CREATE,
- CREATE_NOT_FILE, &data, SMB2_OP_SET_INFO);
- if (tmprc == 0)
- cifs_i->cifsAttrs = dosattrs;
-}
-
-int
-smb2_rmdir(const unsigned int xid, struct cifs_tcon *tcon, const char *name,
- struct cifs_sb_info *cifs_sb)
-{
- return smb2_compound_op(xid, tcon, cifs_sb, name, DELETE, FILE_OPEN,
- CREATE_NOT_FILE,
- NULL, SMB2_OP_RMDIR);
-}
-
-int
-smb2_unlink(const unsigned int xid, struct cifs_tcon *tcon, const char *name,
- struct cifs_sb_info *cifs_sb)
-{
- return smb2_compound_op(xid, tcon, cifs_sb, name, DELETE, FILE_OPEN,
- CREATE_DELETE_ON_CLOSE | OPEN_REPARSE_POINT,
- NULL, SMB2_OP_DELETE);
-}
-
-static int
-smb2_set_path_attr(const unsigned int xid, struct cifs_tcon *tcon,
- const char *from_name, const char *to_name,
- struct cifs_sb_info *cifs_sb, __u32 access, int command)
-{
- __le16 *smb2_to_name = NULL;
- int rc;
-
- smb2_to_name = cifs_convert_path_to_utf16(to_name, cifs_sb);
- if (smb2_to_name == NULL) {
- rc = -ENOMEM;
- goto smb2_rename_path;
- }
- rc = smb2_compound_op(xid, tcon, cifs_sb, from_name, access,
- FILE_OPEN, 0, smb2_to_name, command);
-smb2_rename_path:
- kfree(smb2_to_name);
- return rc;
-}
-
-int
-smb2_rename_path(const unsigned int xid, struct cifs_tcon *tcon,
- const char *from_name, const char *to_name,
- struct cifs_sb_info *cifs_sb)
-{
- return smb2_set_path_attr(xid, tcon, from_name, to_name, cifs_sb,
- DELETE, SMB2_OP_RENAME);
-}
-
-int
-smb2_create_hardlink(const unsigned int xid, struct cifs_tcon *tcon,
- const char *from_name, const char *to_name,
- struct cifs_sb_info *cifs_sb)
-{
- return smb2_set_path_attr(xid, tcon, from_name, to_name, cifs_sb,
- FILE_READ_ATTRIBUTES, SMB2_OP_HARDLINK);
-}
-
-int
-smb2_set_path_size(const unsigned int xid, struct cifs_tcon *tcon,
- const char *full_path, __u64 size,
- struct cifs_sb_info *cifs_sb, bool set_alloc)
-{
- __le64 eof = cpu_to_le64(size);
-
- return smb2_compound_op(xid, tcon, cifs_sb, full_path,
- FILE_WRITE_DATA, FILE_OPEN, 0, &eof,
- SMB2_OP_SET_EOF);
-}
-
-int
-smb2_set_file_info(struct inode *inode, const char *full_path,
- FILE_BASIC_INFO *buf, const unsigned int xid)
-{
- struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
- struct tcon_link *tlink;
- int rc;
-
- if ((buf->CreationTime == 0) && (buf->LastAccessTime == 0) &&
- (buf->LastWriteTime == 0) && (buf->ChangeTime == 0) &&
- (buf->Attributes == 0))
- return 0; /* would be a no op, no sense sending this */
-
- tlink = cifs_sb_tlink(cifs_sb);
- if (IS_ERR(tlink))
- return PTR_ERR(tlink);
-
- rc = smb2_compound_op(xid, tlink_tcon(tlink), cifs_sb, full_path,
- FILE_WRITE_ATTRIBUTES, FILE_OPEN, 0, buf,
- SMB2_OP_SET_INFO);
- cifs_put_tlink(tlink);
- return rc;
-}
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