diff options
| -rw-r--r-- | fs/cifs/cifsglob.h | 6 | ||||
| -rw-r--r-- | fs/cifs/cifsproto.h | 10 | ||||
| -rw-r--r-- | fs/cifs/cifssmb.c | 40 | ||||
| -rw-r--r-- | fs/cifs/inode.c | 106 | ||||
| -rw-r--r-- | fs/cifs/smb1ops.c | 2 |
5 files changed, 89 insertions, 75 deletions
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h index 8595d498ad80..803c21218633 100644 --- a/fs/cifs/cifsglob.h +++ b/fs/cifs/cifsglob.h @@ -252,6 +252,12 @@ struct smb_version_operations { int (*get_srv_inum)(const unsigned int, struct cifs_tcon *, struct cifs_sb_info *, const char *, u64 *uniqueid, FILE_ALL_INFO *); + /* set size by path */ + int (*set_path_size)(const unsigned int, struct cifs_tcon *, + const char *, __u64, struct cifs_sb_info *, bool); + /* set size by file handle */ + int (*set_file_size)(const unsigned int, struct cifs_tcon *, + struct cifsFileInfo *, __u64, bool); /* build a full path to the root of the mount */ char * (*build_path_to_root)(struct smb_vol *, struct cifs_sb_info *, struct cifs_tcon *); diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h index 3c50555c7735..3d99fe9afccc 100644 --- a/fs/cifs/cifsproto.h +++ b/fs/cifs/cifsproto.h @@ -270,13 +270,11 @@ extern int CIFSSMBSetAttrLegacy(unsigned int xid, struct cifs_tcon *tcon, const struct nls_table *nls_codepage); #endif /* possibly unneeded function */ extern int CIFSSMBSetEOF(const unsigned int xid, struct cifs_tcon *tcon, - const char *fileName, __u64 size, - bool setAllocationSizeFlag, - const struct nls_table *nls_codepage, - int remap_special_chars); + const char *file_name, __u64 size, + struct cifs_sb_info *cifs_sb, bool set_allocation); extern int CIFSSMBSetFileSize(const unsigned int xid, struct cifs_tcon *tcon, - __u64 size, __u16 fileHandle, __u32 opener_pid, - bool AllocSizeFlag); + struct cifsFileInfo *cfile, __u64 size, + bool set_allocation); struct cifs_unix_set_info_args { __u64 ctime; diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c index eb3d2cf76e6e..c4f43cf671dc 100644 --- a/fs/cifs/cifssmb.c +++ b/fs/cifs/cifssmb.c @@ -5395,16 +5395,16 @@ QFSPosixRetry: } -/* We can not use write of zero bytes trick to - set file size due to need for large file support. Also note that - this SetPathInfo is preferred to SetFileInfo based method in next - routine which is only needed to work around a sharing violation bug - in Samba which this routine can run into */ - +/* + * We can not use write of zero bytes trick to set file size due to need for + * large file support. Also note that this SetPathInfo is preferred to + * SetFileInfo based method in next routine which is only needed to work around + * a sharing violation bugin Samba which this routine can run into. + */ int CIFSSMBSetEOF(const unsigned int xid, struct cifs_tcon *tcon, - const char *fileName, __u64 size, bool SetAllocation, - const struct nls_table *nls_codepage, int remap) + const char *file_name, __u64 size, struct cifs_sb_info *cifs_sb, + bool set_allocation) { struct smb_com_transaction2_spi_req *pSMB = NULL; struct smb_com_transaction2_spi_rsp *pSMBr = NULL; @@ -5412,6 +5412,8 @@ CIFSSMBSetEOF(const unsigned int xid, struct cifs_tcon *tcon, int name_len; int rc = 0; int bytes_returned = 0; + int remap = cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR; + __u16 params, byte_count, data_count, param_offset, offset; cFYI(1, "In SetEOF"); @@ -5423,14 +5425,14 @@ SetEOFRetry: if (pSMB->hdr.Flags2 & SMBFLG2_UNICODE) { name_len = - cifsConvertToUTF16((__le16 *) pSMB->FileName, fileName, - PATH_MAX, nls_codepage, remap); + cifsConvertToUTF16((__le16 *) pSMB->FileName, file_name, + PATH_MAX, cifs_sb->local_nls, remap); name_len++; /* trailing null */ name_len *= 2; } else { /* BB improve the check for buffer overruns BB */ - name_len = strnlen(fileName, PATH_MAX); + name_len = strnlen(file_name, PATH_MAX); name_len++; /* trailing null */ - strncpy(pSMB->FileName, fileName, name_len); + strncpy(pSMB->FileName, file_name, name_len); } params = 6 + name_len; data_count = sizeof(struct file_end_of_file_info); @@ -5444,7 +5446,7 @@ SetEOFRetry: param_offset = offsetof(struct smb_com_transaction2_spi_req, InformationLevel) - 4; offset = param_offset + params; - if (SetAllocation) { + if (set_allocation) { if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO2); @@ -5491,8 +5493,8 @@ SetEOFRetry: } int -CIFSSMBSetFileSize(const unsigned int xid, struct cifs_tcon *tcon, __u64 size, - __u16 fid, __u32 pid_of_opener, bool SetAllocation) +CIFSSMBSetFileSize(const unsigned int xid, struct cifs_tcon *tcon, + struct cifsFileInfo *cfile, __u64 size, bool set_allocation) { struct smb_com_transaction2_sfi_req *pSMB = NULL; struct file_end_of_file_info *parm_data; @@ -5506,8 +5508,8 @@ CIFSSMBSetFileSize(const unsigned int xid, struct cifs_tcon *tcon, __u64 size, if (rc) return rc; - pSMB->hdr.Pid = cpu_to_le16((__u16)pid_of_opener); - pSMB->hdr.PidHigh = cpu_to_le16((__u16)(pid_of_opener >> 16)); + pSMB->hdr.Pid = cpu_to_le16((__u16)cfile->pid); + pSMB->hdr.PidHigh = cpu_to_le16((__u16)(cfile->pid >> 16)); params = 6; pSMB->MaxSetupCount = 0; @@ -5536,8 +5538,8 @@ CIFSSMBSetFileSize(const unsigned int xid, struct cifs_tcon *tcon, __u64 size, + offset); pSMB->DataOffset = cpu_to_le16(offset); parm_data->FileSize = cpu_to_le64(size); - pSMB->Fid = fid; - if (SetAllocation) { + pSMB->Fid = cfile->fid.netfid; + if (set_allocation) { if (tcon->ses->capabilities & CAP_INFOLEVEL_PASSTHRU) pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_ALLOCATION_INFO2); diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c index 2f3235f08c3f..85e1b0a405a8 100644 --- a/fs/cifs/inode.c +++ b/fs/cifs/inode.c @@ -1883,7 +1883,8 @@ cifs_set_file_size(struct inode *inode, struct iattr *attrs, struct cifsInodeInfo *cifsInode = CIFS_I(inode); struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb); struct tcon_link *tlink = NULL; - struct cifs_tcon *pTcon = NULL; + struct cifs_tcon *tcon = NULL; + struct TCP_Server_Info *server; struct cifs_io_parms io_parms; /* @@ -1897,19 +1898,21 @@ cifs_set_file_size(struct inode *inode, struct iattr *attrs, */ open_file = find_writable_file(cifsInode, true); if (open_file) { - __u16 nfid = open_file->fid.netfid; - __u32 npid = open_file->pid; - pTcon = tlink_tcon(open_file->tlink); - rc = CIFSSMBSetFileSize(xid, pTcon, attrs->ia_size, nfid, - npid, false); + tcon = tlink_tcon(open_file->tlink); + server = tcon->ses->server; + if (server->ops->set_file_size) + rc = server->ops->set_file_size(xid, tcon, open_file, + attrs->ia_size, false); + else + rc = -ENOSYS; cifsFileInfo_put(open_file); cFYI(1, "SetFSize for attrs rc = %d", rc); if ((rc == -EINVAL) || (rc == -EOPNOTSUPP)) { unsigned int bytes_written; - io_parms.netfid = nfid; - io_parms.pid = npid; - io_parms.tcon = pTcon; + io_parms.netfid = open_file->fid.netfid; + io_parms.pid = open_file->pid; + io_parms.tcon = tcon; io_parms.offset = 0; io_parms.length = attrs->ia_size; rc = CIFSSMBWrite(xid, &io_parms, &bytes_written, @@ -1919,52 +1922,55 @@ cifs_set_file_size(struct inode *inode, struct iattr *attrs, } else rc = -EINVAL; - if (rc != 0) { - if (pTcon == NULL) { - tlink = cifs_sb_tlink(cifs_sb); - if (IS_ERR(tlink)) - return PTR_ERR(tlink); - pTcon = tlink_tcon(tlink); - } + if (!rc) + goto set_size_out; - /* Set file size by pathname rather than by handle - either because no valid, writeable file handle for - it was found or because there was an error setting - it by handle */ - rc = CIFSSMBSetEOF(xid, pTcon, full_path, attrs->ia_size, - false, cifs_sb->local_nls, + if (tcon == NULL) { + tlink = cifs_sb_tlink(cifs_sb); + if (IS_ERR(tlink)) + return PTR_ERR(tlink); + tcon = tlink_tcon(tlink); + server = tcon->ses->server; + } + + /* + * Set file size by pathname rather than by handle either because no + * valid, writeable file handle for it was found or because there was + * an error setting it by handle. + */ + if (server->ops->set_path_size) + rc = server->ops->set_path_size(xid, tcon, full_path, + attrs->ia_size, cifs_sb, false); + else + rc = -ENOSYS; + cFYI(1, "SetEOF by path (setattrs) rc = %d", rc); + if ((rc == -EINVAL) || (rc == -EOPNOTSUPP)) { + __u16 netfid; + int oplock = 0; + + rc = SMBLegacyOpen(xid, tcon, full_path, FILE_OPEN, + GENERIC_WRITE, CREATE_NOT_DIR, &netfid, + &oplock, NULL, cifs_sb->local_nls, cifs_sb->mnt_cifs_flags & - CIFS_MOUNT_MAP_SPECIAL_CHR); - cFYI(1, "SetEOF by path (setattrs) rc = %d", rc); - if ((rc == -EINVAL) || (rc == -EOPNOTSUPP)) { - __u16 netfid; - int oplock = 0; - - rc = SMBLegacyOpen(xid, pTcon, full_path, - FILE_OPEN, GENERIC_WRITE, - CREATE_NOT_DIR, &netfid, &oplock, NULL, - cifs_sb->local_nls, - cifs_sb->mnt_cifs_flags & - CIFS_MOUNT_MAP_SPECIAL_CHR); - if (rc == 0) { - unsigned int bytes_written; - - io_parms.netfid = netfid; - io_parms.pid = current->tgid; - io_parms.tcon = pTcon; - io_parms.offset = 0; - io_parms.length = attrs->ia_size; - rc = CIFSSMBWrite(xid, &io_parms, - &bytes_written, - NULL, NULL, 1); - cFYI(1, "wrt seteof rc %d", rc); - CIFSSMBClose(xid, pTcon, netfid); - } + CIFS_MOUNT_MAP_SPECIAL_CHR); + if (rc == 0) { + unsigned int bytes_written; + + io_parms.netfid = netfid; + io_parms.pid = current->tgid; + io_parms.tcon = tcon; + io_parms.offset = 0; + io_parms.length = attrs->ia_size; + rc = CIFSSMBWrite(xid, &io_parms, &bytes_written, NULL, + NULL, 1); + cFYI(1, "wrt seteof rc %d", rc); + CIFSSMBClose(xid, tcon, netfid); } - if (tlink) - cifs_put_tlink(tlink); } + if (tlink) + cifs_put_tlink(tlink); +set_size_out: if (rc == 0) { cifsInode->server_eof = attrs->ia_size; cifs_setsize(inode, attrs->ia_size); diff --git a/fs/cifs/smb1ops.c b/fs/cifs/smb1ops.c index e5d63444f0ff..b73d2750296d 100644 --- a/fs/cifs/smb1ops.c +++ b/fs/cifs/smb1ops.c @@ -793,6 +793,8 @@ struct smb_version_operations smb1_operations = { .query_path_info = cifs_query_path_info, .query_file_info = cifs_query_file_info, .get_srv_inum = cifs_get_srv_inum, + .set_path_size = CIFSSMBSetEOF, + .set_file_size = CIFSSMBSetFileSize, .build_path_to_root = cifs_build_path_to_root, .echo = CIFSSMBEcho, .mkdir = CIFSSMBMkDir, |
