/* * 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 #include #include #include #include #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_open_op_close(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 *data, int command) { int rc, tmprc = 0; __le16 *utf16_path; __u8 oplock = SMB2_OPLOCK_LEVEL_NONE; struct cifs_open_parms oparms; struct cifs_fid fid; 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; oparms.fid = &fid; oparms.reconnect = false; rc = SMB2_open(xid, &oparms, utf16_path, &oplock, NULL, NULL); if (rc) { kfree(utf16_path); return rc; } switch (command) { case SMB2_OP_DELETE: break; case SMB2_OP_QUERY_INFO: tmprc = SMB2_query_info(xid, tcon, fid.persistent_fid, fid.volatile_fid, (struct smb2_file_all_info *)data); break; case SMB2_OP_MKDIR: /* * Directories are created through parameters in the * SMB2_open() call. */ break; case SMB2_OP_RMDIR: tmprc = SMB2_rmdir(xid, tcon, fid.persistent_fid, fid.volatile_fid); break; case SMB2_OP_RENAME: tmprc = SMB2_rename(xid, tcon, fid.persistent_fid, fid.volatile_fid, (__le16 *)data); break; case SMB2_OP_HARDLINK: tmprc = SMB2_set_hardlink(xid, tcon, fid.persistent_fid, fid.volatile_fid, (__le16 *)data); break; case SMB2_OP_SET_EOF: tmprc = SMB2_set_eof(xid, tcon, fid.persistent_fid, fid.volatile_fid, current->tgid, (__le64 *)data, false); break; case SMB2_OP_SET_INFO: tmprc = SMB2_set_info(xid, tcon, fid.persistent_fid, fid.volatile_fid, (FILE_BASIC_INFO *)data); break; default: cifs_dbg(VFS, "Invalid command\n"); break; } rc = SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid); if (tmprc) rc = tmprc; kfree(utf16_path); 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; *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; rc = smb2_open_op_close(xid, tcon, cifs_sb, full_path, FILE_READ_ATTRIBUTES, FILE_OPEN, 0, smb2_data, SMB2_OP_QUERY_INFO); if (rc == -EOPNOTSUPP) { *symlink = true; /* Failed on a symbolic link - query a reparse point info */ rc = smb2_open_op_close(xid, tcon, cifs_sb, full_path, FILE_READ_ATTRIBUTES, FILE_OPEN, OPEN_REPARSE_POINT, 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_open_op_close(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_open_op_close(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_open_op_close(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_open_op_close(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_open_op_close(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_open_op_close(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) && (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_open_op_close(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; } ivate-remove&id=2b5078937355c0d662ecef54b7d4d04f48da4fa9'>logplain -rw-r--r--block-range.h1607logplain -rw-r--r--bpf-loader.c40787logplain -rw-r--r--bpf-loader.h6215logplain -rw-r--r--bpf-prologue.c11226logplain -rw-r--r--bpf-prologue.h847logplain -rw-r--r--build-id.c19054logplain -rw-r--r--build-id.h1859logplain d---------c++184logplain -rw-r--r--cache.h733logplain -rw-r--r--call-path.c2893logplain -rw-r--r--call-path.h2203logplain -rw-r--r--callchain.c29332logplain -rw-r--r--callchain.h7881logplain -rw-r--r--cgroup.c3195logplain -rw-r--r--cgroup.h359logplain -rw-r--r--cloexec.c1950logplain -rw-r--r--cloexec.h251logplain -rw-r--r--color.c4787logplain -rw-r--r--color.h1647logplain -rw-r--r--comm.c2239logplain -rw-r--r--comm.h561logplain -rw-r--r--config.c16262logplain -rw-r--r--config.h2113logplain -rw-r--r--counts.c1026logplain -rw-r--r--counts.h790logplain -rw-r--r--cpumap.c12627logplain -rw-r--r--cpumap.h1954logplain -rw-r--r--cs-etm.h2061logplain -rw-r--r--ctype.c2018logplain -rw-r--r--data-convert-bt.c36671logplain -rw-r--r--data-convert-bt.h302logplain -rw-r--r--data-convert.h141logplain -rw-r--r--data.c3459logplain -rw-r--r--data.h1369logplain -rw-r--r--db-export.c11434logplain -rw-r--r--db-export.h3816logplain -rw-r--r--debug.c4417logplain -rw-r--r--debug.h2023logplain -rw-r--r--demangle-java.c4219logplain -rw-r--r--demangle-java.h249logplain -rw-r--r--demangle-rust.c6602logplain -rw-r--r--demangle-rust.h170logplain -rw-r--r--drv_configs.c1834logplain -rw-r--r--drv_configs.h844logplain -rw-r--r--dso.c31994logplain -rw-r--r--dso.h10399logplain -rw-r--r--dwarf-aux.c33828logplain -rw-r--r--dwarf-aux.h5101logplain -rw-r--r--dwarf-regs.c1816logplain -rw-r--r--env.c1884logplain -rw-r--r--env.h1268logplain -rw-r--r--event.c36670logplain -rw-r--r--event.h15997logplain -rw-r--r--evlist.c47104logplain -rw-r--r--evlist.h12584logplain -rw-r--r--evsel.c63917logplain -rw-r--r--evsel.h13041logplain -rw-r--r--evsel_fprintf.c5831logplain -rw-r--r--find-vdso-map.c581logplain -rw-r--r--genelf.c11653logplain -rw-r--r--genelf.h1814logplain -rw-r--r--genelf_debug.c14374logplain -rwxr-xr-xgenerate-cmdlist.sh1141logplain -rw-r--r--group.h122logplain -rw-r--r--header.c73410logplain -rw-r--r--header.h4365logplain -rw-r--r--help-unknown-cmd.c3221logplain