source: branches/samba-3.0/source/modules/vfs_aixacl.c

Last change on this file was 1, checked in by Paul Smedley, 18 years ago

Initial code import
File size: 5.3 KB
Line 
1/*
2 Unix SMB/Netbios implementation.
3 VFS module to get and set posix acls
4 Copyright (C) Jim McDonough <jmcd@us.ibm.com> 2006
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19*/
20
21#include "includes.h"
22
23extern SMB_ACL_T aixacl_to_smbacl( struct acl *file_acl);
24extern struct acl *aixacl_smb_to_aixacl(SMB_ACL_TYPE_T acltype, SMB_ACL_T theacl);
25
26SMB_ACL_T aixacl_sys_acl_get_file(vfs_handle_struct *handle,
27 const char *path_p,
28 SMB_ACL_TYPE_T type)
29{
30 struct acl *file_acl = (struct acl *)NULL;
31 struct smb_acl_t *result = (struct smb_acl_t *)NULL;
32
33 int rc = 0;
34 uid_t user_id;
35
36 /* AIX has no DEFAULT */
37 if ( type == SMB_ACL_TYPE_DEFAULT )
38 return NULL;
39
40 /* Get the acl using statacl */
41
42 DEBUG(10,("Entering AIX sys_acl_get_file\n"));
43 DEBUG(10,("path_p is %s\n",path_p));
44
45 file_acl = (struct acl *)SMB_MALLOC(BUFSIZ);
46
47 if(file_acl == NULL) {
48 errno=ENOMEM;
49 DEBUG(0,("Error in AIX sys_acl_get_file: %d\n",errno));
50 return(NULL);
51 }
52
53 memset(file_acl,0,BUFSIZ);
54
55 rc = statacl((char *)path_p,0,file_acl,BUFSIZ);
56 if( (rc == -1) && (errno == ENOSPC)) {
57 struct acl *new_acl = SMB_MALLOC(file_acl->acl_len + sizeof(struct acl));
58 if( new_acl == NULL) {
59 SAFE_FREE(file_acl);
60 errno = ENOMEM;
61 return NULL;
62 }
63 file_acl = new_acl;
64 rc = statacl((char *)path_p,0,file_acl,file_acl->acl_len+sizeof(struct acl));
65 if( rc == -1) {
66 DEBUG(0,("statacl returned %d with errno %d\n",rc,errno));
67 SAFE_FREE(file_acl);
68 return(NULL);
69 }
70 }
71
72 DEBUG(10,("Got facl and returned it\n"));
73
74
75 result = aixacl_to_smbacl(file_acl);
76 SAFE_FREE(file_acl);
77 return result;
78
79 /*errno = ENOTSUP;
80 return NULL;*/
81}
82
83SMB_ACL_T aixacl_sys_acl_get_fd(vfs_handle_struct *handle,
84 files_struct *fsp,
85 int fd)
86{
87
88 struct acl *file_acl = (struct acl *)NULL;
89 struct smb_acl_t *result = (struct smb_acl_t *)NULL;
90
91 int rc = 0;
92 uid_t user_id;
93
94 /* Get the acl using fstatacl */
95
96 DEBUG(10,("Entering AIX sys_acl_get_fd\n"));
97 DEBUG(10,("fd is %d\n",fd));
98 file_acl = (struct acl *)SMB_MALLOC(BUFSIZ);
99
100 if(file_acl == NULL) {
101 errno=ENOMEM;
102 DEBUG(0,("Error in AIX sys_acl_get_fd is %d\n",errno));
103 return(NULL);
104 }
105
106 memset(file_acl,0,BUFSIZ);
107
108 rc = fstatacl(fd,0,file_acl,BUFSIZ);
109 if( (rc == -1) && (errno == ENOSPC)) {
110 struct acl *new_acl = SMB_MALLOC(file_acl->acl_len + sizeof(struct acl));
111 if( new_acl == NULL) {
112 SAFE_FREE(file_acl);
113 errno = ENOMEM;
114 return NULL;
115 }
116 file_acl = new_acl;
117 rc = fstatacl(fd,0,file_acl,file_acl->acl_len + sizeof(struct acl));
118 if( rc == -1) {
119 DEBUG(0,("fstatacl returned %d with errno %d\n",rc,errno));
120 SAFE_FREE(file_acl);
121 return(NULL);
122 }
123 }
124
125 DEBUG(10,("Got facl and returned it\n"));
126
127 result = aixacl_to_smbacl(file_acl);
128 SAFE_FREE(file_acl);
129 return result;
130
131 /*errno = ENOTSUP;
132 return NULL;*/
133}
134
135int aixacl_sys_acl_set_file(vfs_handle_struct *handle,
136 const char *name,
137 SMB_ACL_TYPE_T type,
138 SMB_ACL_T theacl)
139{
140 struct acl *file_acl = NULL;
141 uint rc;
142
143 file_acl = aixacl_smb_to_aixacl(type, theacl);
144 if (!file_acl)
145 return -1;
146
147 rc = chacl((char *)name,file_acl,file_acl->acl_len);
148 DEBUG(10,("errno is %d\n",errno));
149 DEBUG(10,("return code is %d\n",rc));
150 SAFE_FREE(file_acl);
151 DEBUG(10,("Exiting the aixacl_sys_acl_set_file\n"));
152
153 return rc;
154}
155
156int aixacl_sys_acl_set_fd(vfs_handle_struct *handle,
157 files_struct *fsp,
158 int fd, SMB_ACL_T theacl)
159{
160 struct acl *file_acl = NULL;
161 uint rc;
162
163 file_acl = aixacl_smb_to_aixacl(SMB_ACL_TYPE_ACCESS, theacl);
164 if (!file_acl)
165 return -1;
166
167 rc = fchacl(fd,file_acl,file_acl->acl_len);
168 DEBUG(10,("errno is %d\n",errno));
169 DEBUG(10,("return code is %d\n",rc));
170 SAFE_FREE(file_acl);
171 DEBUG(10,("Exiting aixacl_sys_acl_set_fd\n"));
172
173 return rc;
174}
175
176int aixacl_sys_acl_delete_def_file(vfs_handle_struct *handle,
177 const char *path)
178{
179 return 0; /* otherwise you can't set acl at upper level */
180}
181
182/* VFS operations structure */
183
184static vfs_op_tuple aixacl_op_tuples[] = {
185 /* Disk operations */
186 {SMB_VFS_OP(aixacl_sys_acl_get_file),
187 SMB_VFS_OP_SYS_ACL_GET_FILE,
188 SMB_VFS_LAYER_TRANSPARENT},
189
190 {SMB_VFS_OP(aixacl_sys_acl_get_fd),
191 SMB_VFS_OP_SYS_ACL_GET_FD,
192 SMB_VFS_LAYER_TRANSPARENT},
193
194 {SMB_VFS_OP(aixacl_sys_acl_set_file),
195 SMB_VFS_OP_SYS_ACL_SET_FILE,
196 SMB_VFS_LAYER_TRANSPARENT},
197
198 {SMB_VFS_OP(aixacl_sys_acl_set_fd),
199 SMB_VFS_OP_SYS_ACL_SET_FD,
200 SMB_VFS_LAYER_TRANSPARENT},
201
202 {SMB_VFS_OP(aixacl_sys_acl_delete_def_file),
203 SMB_VFS_OP_SYS_ACL_DELETE_DEF_FILE,
204 SMB_VFS_LAYER_TRANSPARENT},
205
206 {SMB_VFS_OP(NULL),
207 SMB_VFS_OP_NOOP,
208 SMB_VFS_LAYER_NOOP}
209};
210
211NTSTATUS vfs_aixacl_init(void);
212NTSTATUS vfs_aixacl_init(void)
213{
214 return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "aixacl",
215 aixacl_op_tuples);
216}
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