2 Unix SMB/Netbios implementation.
3 VFS module to get and set posix acls
4 Copyright (C) Jim McDonough <jmcd@us.ibm.com> 2006
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.
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.
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.
23 SMB_ACL_T
aixacl_to_smbacl(struct acl
*file_acl
)
25 struct acl_entry
*acl_entry
;
28 struct smb_acl_t
*result
= SMB_MALLOC_P(struct smb_acl_t
);
29 struct smb_acl_entry
*ace
;
37 /* Point to the first acl entry in the acl */
38 acl_entry
= file_acl
->acl_ext
;
42 DEBUG(10,("acl_entry is %d\n",acl_entry
));
43 DEBUG(10,("acl_last(file_acl) id %d\n",acl_last(file_acl
)));
45 /* Check if the extended acl bit is on. *
46 * If it isn't, do not show the *
47 * contents of the acl since AIX intends *
48 * the extended info to remain unused */
50 if(file_acl
->acl_mode
& S_IXACL
){
51 /* while we are not pointing to the very end */
52 while(acl_entry
< acl_last(file_acl
)) {
53 /* before we malloc anything, make sure this is */
54 /* a valid acl entry and one that we want to map */
55 idp
= id_nxt(acl_entry
->ace_id
);
56 if((acl_entry
->ace_type
== ACC_SPECIFY
||
57 (acl_entry
->ace_type
== ACC_PERMIT
)) && (idp
!= id_last(acl_entry
))) {
58 acl_entry
= acl_nxt(acl_entry
);
62 idp
= acl_entry
->ace_id
;
63 DEBUG(10,("idp->id_data is %d\n",idp
->id_data
[0]));
65 result
= SMB_REALLOC(result
, sizeof(struct smb_acl_t
) +
66 (sizeof(struct smb_acl_entry
) *
69 DEBUG(0, ("SMB_REALLOC failed\n"));
75 DEBUG(10,("idp->id_type is %d\n",idp
->id_type
));
76 ace
= &result
->acl
[result
->count
];
78 ace
->a_type
= idp
->id_type
;
82 ace
->uid
= idp
->id_data
[0];
83 DEBUG(10,("case ACEID_USER ace->uid is %d\n",ace
->uid
));
84 ace
->a_type
= SMB_ACL_USER
;
89 ace
->gid
= idp
->id_data
[0];
90 DEBUG(10,("case ACEID_GROUP ace->gid is %d\n",ace
->gid
));
91 ace
->a_type
= SMB_ACL_GROUP
;
97 /* The access in the acl entries must be left shifted by *
98 * three bites, because they will ultimately be compared *
99 * to S_IRUSR, S_IWUSR, and S_IXUSR. */
101 switch(acl_entry
->ace_type
){
104 ace
->a_perm
= acl_entry
->ace_access
;
106 DEBUG(10,("ace->a_perm is %d\n",ace
->a_perm
));
109 /* Since there is no way to return a DENY acl entry *
110 * change to PERMIT and then shift. */
111 DEBUG(10,("acl_entry->ace_access is %d\n",acl_entry
->ace_access
));
112 ace
->a_perm
= ~acl_entry
->ace_access
& 7;
113 DEBUG(10,("ace->a_perm is %d\n",ace
->a_perm
));
117 DEBUG(0, ("unknown ace->type\n"));
123 ace
->a_perm
|= (ace
->a_perm
& S_IRUSR
) ? SMB_ACL_READ
: 0;
124 ace
->a_perm
|= (ace
->a_perm
& S_IWUSR
) ? SMB_ACL_WRITE
: 0;
125 ace
->a_perm
|= (ace
->a_perm
& S_IXUSR
) ? SMB_ACL_EXECUTE
: 0;
126 DEBUG(10,("ace->a_perm is %d\n",ace
->a_perm
));
128 DEBUG(10,("acl_entry = %d\n",acl_entry
));
129 DEBUG(10,("The ace_type is %d\n",acl_entry
->ace_type
));
131 acl_entry
= acl_nxt(acl_entry
);
133 } /* end of if enabled */
135 /* Since owner, group, other acl entries are not *
136 * part of the acl entries in an acl, they must *
137 * be dummied up to become part of the list. */
139 for( i
= 1; i
< 4; i
++) {
140 DEBUG(10,("i is %d\n",i
));
142 result
= SMB_REALLOC(result
, sizeof(struct smb_acl_t
) +
143 (sizeof(struct smb_acl_entry
) *
145 if (result
== NULL
) {
146 DEBUG(0, ("SMB_REALLOC failed\n"));
148 DEBUG(0,("Error in AIX sys_acl_get_file is %d\n",errno
));
152 ace
= &result
->acl
[result
->count
];
156 DEBUG(10,("ace->uid = %d\n",ace
->uid
));
160 ace
->a_perm
= file_acl
->g_access
<< 6;
161 ace
->a_type
= SMB_ACL_GROUP_OBJ
;
165 ace
->a_perm
= file_acl
->o_access
<< 6;
166 ace
->a_type
= SMB_ACL_OTHER
;
170 ace
->a_perm
= file_acl
->u_access
<< 6;
171 ace
->a_type
= SMB_ACL_USER_OBJ
;
178 ace
->a_perm
|= ((ace
->a_perm
& S_IRUSR
) ? SMB_ACL_READ
: 0);
179 ace
->a_perm
|= ((ace
->a_perm
& S_IWUSR
) ? SMB_ACL_WRITE
: 0);
180 ace
->a_perm
|= ((ace
->a_perm
& S_IXUSR
) ? SMB_ACL_EXECUTE
: 0);
182 memcpy(&result
->acl
[result
->count
],ace
,sizeof(struct smb_acl_entry
));
184 DEBUG(10,("ace->a_perm = %d\n",ace
->a_perm
));
185 DEBUG(10,("ace->a_type = %d\n",ace
->a_type
));
194 static ushort
aixacl_smb_to_aixperm(SMB_ACL_PERM_T a_perm
)
196 ushort ret
= (ushort
)0;
197 if (a_perm
& SMB_ACL_READ
)
199 if (a_perm
& SMB_ACL_WRITE
)
201 if (a_perm
& SMB_ACL_EXECUTE
)
206 struct acl
*aixacl_smb_to_aixacl(SMB_ACL_TYPE_T acltype
, SMB_ACL_T theacl
)
208 struct smb_acl_entry
*smb_entry
= NULL
;
209 struct acl
*file_acl
= NULL
;
210 struct acl
*file_acl_temp
= NULL
;
211 struct acl_entry
*acl_entry
= NULL
;
212 struct ace_id
*ace_id
= NULL
;
218 DEBUG(10,("Entering aixacl_smb_to_aixacl\n"));
219 /* AIX has no default ACL */
220 if(acltype
== SMB_ACL_TYPE_DEFAULT
)
224 file_acl
= (struct acl
*)SMB_MALLOC(BUFSIZ
);
225 if(file_acl
== NULL
) {
227 DEBUG(0,("Error in aixacl_smb_to_aixacl is %d\n",errno
));
231 memset(file_acl
,0,BUFSIZ
);
233 file_acl
->acl_len
= ACL_SIZ
;
234 file_acl
->acl_mode
= S_IXACL
;
236 for(i
=0; i
<theacl
->count
; i
++ ) {
237 smb_entry
= &(theacl
->acl
[i
]);
238 id_type
= smb_entry
->a_type
;
239 DEBUG(10,("The id_type is %d\n",id_type
));
242 case SMB_ACL_USER_OBJ
:
243 file_acl
->u_access
= aixacl_smb_to_aixperm(smb_entry
->a_perm
);
245 case SMB_ACL_GROUP_OBJ
:
246 file_acl
->g_access
= aixacl_smb_to_aixperm(smb_entry
->a_perm
);
249 file_acl
->o_access
= aixacl_smb_to_aixperm(smb_entry
->a_perm
);
254 break; /* process this */
256 break; /* process this */
257 default: /* abnormal case */
258 DEBUG(10,("The id_type is unknown !\n"));
262 if((file_acl
->acl_len
+ sizeof(struct acl_entry
)) > acl_length
) {
263 acl_length
+= sizeof(struct acl_entry
);
264 file_acl_temp
= (struct acl
*)SMB_MALLOC(acl_length
);
265 if(file_acl_temp
== NULL
) {
268 DEBUG(0,("Error in aixacl_smb_to_aixacl is %d\n",errno
));
272 memcpy(file_acl_temp
,file_acl
,file_acl
->acl_len
);
274 file_acl
= file_acl_temp
;
277 acl_entry
= (struct acl_entry
*)((char *)file_acl
+ file_acl
->acl_len
);
278 file_acl
->acl_len
+= sizeof(struct acl_entry
);
279 acl_entry
->ace_len
= sizeof(struct acl_entry
); /* contains 1 ace_id */
280 acl_entry
->ace_access
= aixacl_smb_to_aixperm(smb_entry
->a_perm
);
282 /* In order to use this, we'll need to wait until we can get denies */
283 /* if(!acl_entry->ace_access && acl_entry->ace_type == ACC_PERMIT)
284 acl_entry->ace_type = ACC_SPECIFY; */
286 acl_entry
->ace_type
= ACC_SPECIFY
;
288 ace_id
= acl_entry
->ace_id
;
290 ace_id
->id_type
= (smb_entry
->a_type
==SMB_ACL_GROUP
) ? ACEID_GROUP
: ACEID_USER
;
291 DEBUG(10,("The id type is %d\n",ace_id
->id_type
));
292 ace_id
->id_len
= sizeof(struct ace_id
); /* contains 1 id_data */
293 ace_id
->id_data
[0] = (smb_entry
->a_type
==SMB_ACL_GROUP
) ? smb_entry
->gid
: smb_entry
->uid
;