UbixOS V2 2.0

access.c
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1 /*-
2 * Copyright (c) 2002-2018 The UbixOS Project.
3 * All rights reserved.
4 *
5 * This was developed by Christopher W. Olsen for the UbixOS Project.
6 *
7 * Redistribution and use in source and binary forms, with or without modification, are permitted
8 * provided that the following conditions are met:
9 *
10 * 1) Redistributions of source code must retain the above copyright notice, this list of
11 * conditions, the following disclaimer and the list of authors.
12 * 2) Redistributions in binary form must reproduce the above copyright notice, this list of
13 * conditions, the following disclaimer and the list of authors in the documentation and/or
14 * other materials provided with the distribution.
15 * 3) Neither the name of the UbixOS Project nor the names of its contributors may be used to
16 * endorse or promote products derived from this software without specific prior written
17 * permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED
20 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
21 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
22 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
23 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
24 * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
25 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
26 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29 #include <ubixos/access.h>
30
31 /************************************************************************
32
33 Function: sys_setUID();
34
35 Description: This will set the UID of the task
36
37 Notes:
38
39 2016/01/17 - This is very basic and will set any UID if you're 0
40 need to change later.
41
42
43 ************************************************************************/
44 int sys_setUID(struct thread *td, struct sys_setUID_args *args) {
45 if (_current->uid == 0x0) {
46 _current->uid = args->uid;
47 return (0);
48 }
49 return (-1);
50 }
51
52 int sys_getUID(struct thread *td, void *uap) {
53 return (_current->uid);
54 }
55
56 int sys_getEUID(struct thread *td, void *uap) {
57 return (_current->uid);
58 }
59
60 int sys_getGID(struct thread *td, void *uap) {
61 return (_current->gid);
62 }
63
64 int sys_setGID(struct thread *td, struct sys_setGID_args *uap) {
65
66 if (_current->gid == 0x0) {
67
68 _current->gid = uap->gid;
69
70 return (0);
71
72 }
73
74 return (-1);
75 }
76
77 int in_group_p(gid_t grp) {
78 int i;
79
80 if (grp == _current->egid)
81 return 1;
82
83 for (i = 0; i < NR_GROUPS; i++) {
84 if (_current->groups[i] == NO_GROUP)
85 break;
86 if (_current->groups[i] == grp)
87 return 1;
88 }
89 return 0;
90 }
NR_GROUPS
#define NR_GROUPS
Definition: sched.h:44
NO_GROUP
#define NO_GROUP
Definition: sched.h:43
gid_t
__gid_t gid_t
Definition: types.h:123
sys_setUID_args::uid
int uid
Definition: sysproto_posix.h:144
thread
Definition: thread.h:40
sys_setUID_args
Definition: sysproto_posix.h:142
sys_setGID_args
Definition: sysproto_posix.h:148
sys_getGID
int sys_getGID(struct thread *td, void *uap)
Definition: access.c:59
sys_setGID
int sys_setGID(struct thread *td, struct sys_setGID_args *uap)
Definition: access.c:63
sys_getEUID
int sys_getEUID(struct thread *td, void *uap)
Definition: access.c:55
sys_setGID_args::gid
int gid
Definition: sysproto_posix.h:150
taskStruct::egid
uint16_t egid
Definition: sched.h:75
_current
kTask_t * _current
Definition: sched.c:50
taskStruct::uid
uint32_t uid
Definition: sched.h:73
taskStruct::groups
uint16_t groups[32]
Definition: sched.h:85
access.h
sys_getUID
int sys_getUID(struct thread *td, void *uap)
Definition: access.c:51
sys_setUID
int sys_setUID(struct thread *td, struct sys_setUID_args *args)
Definition: access.c:43
in_group_p
int in_group_p(gid_t grp)
Definition: access.c:76
taskStruct::gid
uint32_t gid
Definition: sched.h:73