Line data Source code
1 : /*
2 : Unix SMB/CIFS implementation.
3 :
4 : POSIX NTVFS backend -
5 :
6 : Copyright (C) Andrew Tridgell 2004
7 :
8 : This program is free software; you can redistribute it and/or modify
9 : it under the terms of the GNU General Public License as published by
10 : the Free Software Foundation; either version 3 of the License, or
11 : (at your option) any later version.
12 :
13 : This program is distributed in the hope that it will be useful,
14 : but WITHOUT ANY WARRANTY; without even the implied warranty of
15 : MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 : GNU General Public License for more details.
17 :
18 : You should have received a copy of the GNU General Public License
19 : along with this program. If not, see <http://www.gnu.org/licenses/>.
20 : */
21 :
22 : #include "includes.h"
23 : #include "vfs_posix.h"
24 : #include "lib/util/time.h"
25 :
26 : /****************************************************************************
27 : Change a unix mode to a dos mode.
28 : ****************************************************************************/
29 805952 : static uint32_t dos_mode_from_stat(struct pvfs_state *pvfs, struct stat *st)
30 : {
31 805952 : int result = 0;
32 :
33 805952 : if ((st->st_mode & S_IWUSR) == 0)
34 0 : result |= FILE_ATTRIBUTE_READONLY;
35 :
36 805952 : if ((pvfs->flags & PVFS_FLAG_MAP_ARCHIVE) && ((st->st_mode & S_IXUSR) != 0))
37 365939 : result |= FILE_ATTRIBUTE_ARCHIVE;
38 :
39 805952 : if ((pvfs->flags & PVFS_FLAG_MAP_SYSTEM) && ((st->st_mode & S_IXGRP) != 0))
40 0 : result |= FILE_ATTRIBUTE_SYSTEM;
41 :
42 805952 : if ((pvfs->flags & PVFS_FLAG_MAP_HIDDEN) && ((st->st_mode & S_IXOTH) != 0))
43 0 : result |= FILE_ATTRIBUTE_HIDDEN;
44 :
45 805952 : if (S_ISDIR(st->st_mode))
46 365862 : result = FILE_ATTRIBUTE_DIRECTORY | (result & FILE_ATTRIBUTE_READONLY);
47 :
48 805952 : return result;
49 : }
50 :
51 :
52 :
53 : /*
54 : fill in the dos file attributes for a file
55 : */
56 805952 : NTSTATUS pvfs_fill_dos_info(struct pvfs_state *pvfs, struct pvfs_filename *name,
57 : unsigned int flags, int fd)
58 : {
59 : NTSTATUS status;
60 : DATA_BLOB lkey;
61 : NTTIME write_time;
62 :
63 : /* make directories appear as size 0 with 1 link */
64 805952 : if (S_ISDIR(name->st.st_mode)) {
65 365862 : name->st.st_size = 0;
66 365862 : name->st.st_nlink = 1;
67 440090 : } else if (name->stream_id == 0) {
68 439581 : name->stream_name = NULL;
69 : }
70 :
71 : /* for now just use the simple samba mapping */
72 805952 : unix_to_nt_time(&name->dos.create_time, name->st.st_ctime);
73 805952 : unix_to_nt_time(&name->dos.access_time, name->st.st_atime);
74 805952 : unix_to_nt_time(&name->dos.write_time, name->st.st_mtime);
75 805952 : unix_to_nt_time(&name->dos.change_time, name->st.st_ctime);
76 805952 : name->dos.create_time += get_ctimensec(&name->st) / 100;
77 805952 : name->dos.access_time += get_atimensec(&name->st) / 100;
78 805952 : name->dos.write_time += get_mtimensec(&name->st) / 100;
79 805952 : name->dos.change_time += get_ctimensec(&name->st) / 100;
80 805952 : name->dos.attrib = dos_mode_from_stat(pvfs, &name->st);
81 805952 : name->dos.alloc_size = pvfs_round_alloc_size(pvfs, name->st.st_size);
82 805952 : name->dos.nlink = name->st.st_nlink;
83 805952 : name->dos.ea_size = 4; /* TODO: Fill this in without hitting the stream bad in pvfs_doseas_load() */
84 805952 : if (pvfs->ntvfs->ctx->protocol >= PROTOCOL_SMB2_02) {
85 : /* SMB2 represents a null EA with zero bytes */
86 476096 : name->dos.ea_size = 0;
87 : }
88 :
89 805952 : name->dos.file_id = (((uint64_t)name->st.st_dev)<<32) | name->st.st_ino;
90 805952 : name->dos.flags = 0;
91 :
92 805952 : status = pvfs_dosattrib_load(pvfs, name, fd);
93 805952 : NT_STATUS_NOT_OK_RETURN(status);
94 :
95 805952 : if (flags & PVFS_RESOLVE_NO_OPENDB) {
96 444516 : return NT_STATUS_OK;
97 : }
98 :
99 361436 : status = pvfs_locking_key(name, name, &lkey);
100 361436 : NT_STATUS_NOT_OK_RETURN(status);
101 :
102 361436 : status = odb_get_file_infos(pvfs->odb_context, &lkey,
103 : NULL, &write_time);
104 361436 : data_blob_free(&lkey);
105 361436 : if (!NT_STATUS_IS_OK(status)) {
106 0 : DEBUG(1,("WARNING: odb_get_file_infos: %s\n", nt_errstr(status)));
107 0 : return status;
108 : }
109 :
110 361436 : if (!null_time(write_time)) {
111 18405 : name->dos.write_time = write_time;
112 : }
113 :
114 361436 : return NT_STATUS_OK;
115 : }
116 :
117 :
118 : /*
119 : return a set of unix file permissions for a new file or directory
120 : */
121 105850 : mode_t pvfs_fileperms(struct pvfs_state *pvfs, uint32_t attrib)
122 : {
123 105850 : mode_t mode = (S_IRUSR | S_IRGRP | S_IROTH | S_IWUSR | S_IWGRP | S_IWOTH);
124 :
125 105850 : if (!(pvfs->flags & PVFS_FLAG_XATTR_ENABLE) &&
126 0 : (attrib & FILE_ATTRIBUTE_READONLY)) {
127 0 : mode &= ~(S_IWUSR | S_IWGRP | S_IWOTH);
128 : }
129 :
130 105850 : if (!(pvfs->flags & PVFS_FLAG_XATTR_ENABLE)) {
131 0 : if ((attrib & FILE_ATTRIBUTE_ARCHIVE) &&
132 0 : (pvfs->flags & PVFS_FLAG_MAP_ARCHIVE)) {
133 0 : mode |= S_IXUSR;
134 : }
135 0 : if ((attrib & FILE_ATTRIBUTE_SYSTEM) &&
136 0 : (pvfs->flags & PVFS_FLAG_MAP_SYSTEM)) {
137 0 : mode |= S_IXGRP;
138 : }
139 0 : if ((attrib & FILE_ATTRIBUTE_HIDDEN) &&
140 0 : (pvfs->flags & PVFS_FLAG_MAP_HIDDEN)) {
141 0 : mode |= S_IXOTH;
142 : }
143 : }
144 :
145 105850 : if (attrib & FILE_ATTRIBUTE_DIRECTORY) {
146 7252 : mode |= (S_IFDIR | S_IWUSR);
147 7252 : mode |= (S_IXUSR | S_IXGRP | S_IXOTH);
148 7252 : mode &= pvfs->options.dir_mask;
149 7252 : mode |= pvfs->options.force_dir_mode;
150 : } else {
151 98598 : mode &= pvfs->options.create_mask;
152 98598 : mode |= pvfs->options.force_create_mode;
153 : }
154 :
155 105850 : return mode;
156 : }
157 :
158 :
|
