diff options
Diffstat (limited to 'source4/ntvfs/posix/pvfs_fileinfo.c')
| -rw-r--r-- | source4/ntvfs/posix/pvfs_fileinfo.c | 158 |
1 files changed, 158 insertions, 0 deletions
diff --git a/source4/ntvfs/posix/pvfs_fileinfo.c b/source4/ntvfs/posix/pvfs_fileinfo.c new file mode 100644 index 0000000..977ea4f --- /dev/null +++ b/source4/ntvfs/posix/pvfs_fileinfo.c @@ -0,0 +1,158 @@ +/* + Unix SMB/CIFS implementation. + + POSIX NTVFS backend - + + Copyright (C) Andrew Tridgell 2004 + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program 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 General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include "includes.h" +#include "vfs_posix.h" +#include "lib/util/time.h" + +/**************************************************************************** + Change a unix mode to a dos mode. +****************************************************************************/ +static uint32_t dos_mode_from_stat(struct pvfs_state *pvfs, struct stat *st) +{ + int result = 0; + + if ((st->st_mode & S_IWUSR) == 0) + result |= FILE_ATTRIBUTE_READONLY; + + if ((pvfs->flags & PVFS_FLAG_MAP_ARCHIVE) && ((st->st_mode & S_IXUSR) != 0)) + result |= FILE_ATTRIBUTE_ARCHIVE; + + if ((pvfs->flags & PVFS_FLAG_MAP_SYSTEM) && ((st->st_mode & S_IXGRP) != 0)) + result |= FILE_ATTRIBUTE_SYSTEM; + + if ((pvfs->flags & PVFS_FLAG_MAP_HIDDEN) && ((st->st_mode & S_IXOTH) != 0)) + result |= FILE_ATTRIBUTE_HIDDEN; + + if (S_ISDIR(st->st_mode)) + result = FILE_ATTRIBUTE_DIRECTORY | (result & FILE_ATTRIBUTE_READONLY); + + return result; +} + + + +/* + fill in the dos file attributes for a file +*/ +NTSTATUS pvfs_fill_dos_info(struct pvfs_state *pvfs, struct pvfs_filename *name, + unsigned int flags, int fd) +{ + NTSTATUS status; + DATA_BLOB lkey; + NTTIME write_time; + + /* make directories appear as size 0 with 1 link */ + if (S_ISDIR(name->st.st_mode)) { + name->st.st_size = 0; + name->st.st_nlink = 1; + } else if (name->stream_id == 0) { + name->stream_name = NULL; + } + + /* for now just use the simple samba mapping */ + unix_to_nt_time(&name->dos.create_time, name->st.st_ctime); + unix_to_nt_time(&name->dos.access_time, name->st.st_atime); + unix_to_nt_time(&name->dos.write_time, name->st.st_mtime); + unix_to_nt_time(&name->dos.change_time, name->st.st_ctime); + name->dos.create_time += get_ctimensec(&name->st) / 100; + name->dos.access_time += get_atimensec(&name->st) / 100; + name->dos.write_time += get_mtimensec(&name->st) / 100; + name->dos.change_time += get_ctimensec(&name->st) / 100; + name->dos.attrib = dos_mode_from_stat(pvfs, &name->st); + name->dos.alloc_size = pvfs_round_alloc_size(pvfs, name->st.st_size); + name->dos.nlink = name->st.st_nlink; + name->dos.ea_size = 4; /* TODO: Fill this in without hitting the stream bad in pvfs_doseas_load() */ + if (pvfs->ntvfs->ctx->protocol >= PROTOCOL_SMB2_02) { + /* SMB2 represents a null EA with zero bytes */ + name->dos.ea_size = 0; + } + + name->dos.file_id = (((uint64_t)name->st.st_dev)<<32) | name->st.st_ino; + name->dos.flags = 0; + + status = pvfs_dosattrib_load(pvfs, name, fd); + NT_STATUS_NOT_OK_RETURN(status); + + if (flags & PVFS_RESOLVE_NO_OPENDB) { + return NT_STATUS_OK; + } + + status = pvfs_locking_key(name, name, &lkey); + NT_STATUS_NOT_OK_RETURN(status); + + status = odb_get_file_infos(pvfs->odb_context, &lkey, + NULL, &write_time); + data_blob_free(&lkey); + if (!NT_STATUS_IS_OK(status)) { + DEBUG(1,("WARNING: odb_get_file_infos: %s\n", nt_errstr(status))); + return status; + } + + if (!null_time(write_time)) { + name->dos.write_time = write_time; + } + + return NT_STATUS_OK; +} + + +/* + return a set of unix file permissions for a new file or directory +*/ +mode_t pvfs_fileperms(struct pvfs_state *pvfs, uint32_t attrib) +{ + mode_t mode = (S_IRUSR | S_IRGRP | S_IROTH | S_IWUSR | S_IWGRP | S_IWOTH); + + if (!(pvfs->flags & PVFS_FLAG_XATTR_ENABLE) && + (attrib & FILE_ATTRIBUTE_READONLY)) { + mode &= ~(S_IWUSR | S_IWGRP | S_IWOTH); + } + + if (!(pvfs->flags & PVFS_FLAG_XATTR_ENABLE)) { + if ((attrib & FILE_ATTRIBUTE_ARCHIVE) && + (pvfs->flags & PVFS_FLAG_MAP_ARCHIVE)) { + mode |= S_IXUSR; + } + if ((attrib & FILE_ATTRIBUTE_SYSTEM) && + (pvfs->flags & PVFS_FLAG_MAP_SYSTEM)) { + mode |= S_IXGRP; + } + if ((attrib & FILE_ATTRIBUTE_HIDDEN) && + (pvfs->flags & PVFS_FLAG_MAP_HIDDEN)) { + mode |= S_IXOTH; + } + } + + if (attrib & FILE_ATTRIBUTE_DIRECTORY) { + mode |= (S_IFDIR | S_IWUSR); + mode |= (S_IXUSR | S_IXGRP | S_IXOTH); + mode &= pvfs->options.dir_mask; + mode |= pvfs->options.force_dir_mode; + } else { + mode &= pvfs->options.create_mask; + mode |= pvfs->options.force_create_mode; + } + + return mode; +} + + |