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1 | /* |
1 | /* |
2 | * Copyright (C) 2006 Jakub Jermar |
2 | * Copyright (C) 2006 Jakub Jermar |
3 | * All rights reserved. |
3 | * All rights reserved. |
4 | * |
4 | * |
5 | * Redistribution and use in source and binary forms, with or without |
5 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted provided that the following conditions |
6 | * modification, are permitted provided that the following conditions |
7 | * are met: |
7 | * are met: |
8 | * |
8 | * |
9 | * - Redistributions of source code must retain the above copyright |
9 | * - Redistributions of source code must retain the above copyright |
10 | * notice, this list of conditions and the following disclaimer. |
10 | * notice, this list of conditions and the following disclaimer. |
11 | * - Redistributions in binary form must reproduce the above copyright |
11 | * - Redistributions in binary form must reproduce the above copyright |
12 | * notice, this list of conditions and the following disclaimer in the |
12 | * notice, this list of conditions and the following disclaimer in the |
13 | * documentation and/or other materials provided with the distribution. |
13 | * documentation and/or other materials provided with the distribution. |
14 | * - The name of the author may not be used to endorse or promote products |
14 | * - The name of the author may not be used to endorse or promote products |
15 | * derived from this software without specific prior written permission. |
15 | * derived from this software without specific prior written permission. |
16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | */ |
27 | */ |
28 | 28 | ||
29 | /** @addtogroup generic |
29 | /** @addtogroup generic |
30 | * @{ |
30 | * @{ |
31 | */ |
31 | */ |
32 | /** @file |
32 | /** @file |
33 | */ |
33 | */ |
34 | 34 | ||
35 | /** |
35 | /** |
36 | * @file |
36 | * @file |
37 | * @brief Capabilities definitions. |
37 | * @brief Capabilities definitions. |
38 | * |
38 | * |
39 | * Capabilities represent virtual rights that entitle their |
39 | * Capabilities represent virtual rights that entitle their |
40 | * holder to perform certain security sensitive tasks. |
40 | * holder to perform certain security sensitive tasks. |
41 | * |
41 | * |
42 | * Each task can have arbitrary combination of the capabilities |
42 | * Each task can have arbitrary combination of the capabilities |
43 | * defined in this file. Therefore, they are required to be powers |
43 | * defined in this file. Therefore, they are required to be powers |
44 | * of two. |
44 | * of two. |
45 | */ |
45 | */ |
46 | 46 | ||
47 | #ifndef __CAP_H__ |
47 | #ifndef __CAP_H__ |
48 | #define __CAP_H__ |
48 | #define __CAP_H__ |
49 | 49 | ||
50 | #include <syscall/sysarg64.h> |
50 | #include <syscall/sysarg64.h> |
51 | #include <arch/types.h> |
51 | #include <arch/types.h> |
52 | #include <typedefs.h> |
52 | #include <typedefs.h> |
53 | 53 | ||
54 | /** |
54 | /** |
55 | * CAP_CAP allows its holder to grant/revoke arbitrary |
55 | * CAP_CAP allows its holder to grant/revoke arbitrary |
56 | * privilege to/from other tasks. |
56 | * privilege to/from other tasks. |
57 | */ |
57 | */ |
58 | #define CAP_CAP (1<<0) |
58 | #define CAP_CAP (1<<0) |
59 | 59 | ||
60 | /** |
60 | /** |
61 | * CAP_MEM_MANAGER allows its holder to map physical memory |
61 | * CAP_MEM_MANAGER allows its holder to map physical memory |
62 | * to other tasks. |
62 | * to other tasks. |
63 | */ |
63 | */ |
64 | #define CAP_MEM_MANAGER (1<<1) |
64 | #define CAP_MEM_MANAGER (1<<1) |
65 | 65 | ||
66 | /** |
66 | /** |
67 | * CAP_IO_MANAGER allows its holder to access I/O space |
67 | * CAP_IO_MANAGER allows its holder to access I/O space |
68 | * to other tasks. |
68 | * to other tasks. |
69 | */ |
69 | */ |
70 | #define CAP_IO_MANAGER (1<<2) |
70 | #define CAP_IO_MANAGER (1<<2) |
71 | 71 | ||
72 | /** |
72 | /** |
73 | * CAP_PREEMPT_CONTROL allows its holder to disable/enable preemption. |
73 | * CAP_PREEMPT_CONTROL allows its holder to disable/enable preemption. |
74 | */ |
74 | */ |
75 | #define CAP_PREEMPT_CONTROL (1<<3) |
75 | #define CAP_PREEMPT_CONTROL (1<<3) |
76 | 76 | ||
77 | /** |
77 | /** |
78 | * CAP_IRQ_REG entitles its holder to register IRQ handlers. |
78 | * CAP_IRQ_REG entitles its holder to register IRQ handlers. |
79 | */ |
79 | */ |
80 | #define CAP_IRQ_REG (1<<4) |
80 | #define CAP_IRQ_REG (1<<4) |
81 | 81 | ||
82 | typedef uint32_t cap_t; |
82 | typedef uint32_t cap_t; |
83 | 83 | ||
84 | extern void cap_set(task_t *t, cap_t caps); |
84 | extern void cap_set(task_t *t, cap_t caps); |
85 | extern cap_t cap_get(task_t *t); |
85 | extern cap_t cap_get(task_t *t); |
86 | 86 | ||
87 | extern unative_t sys_cap_grant(sysarg64_t *uspace_taskid_arg, cap_t caps); |
87 | extern unative_t sys_cap_grant(sysarg64_t *uspace_taskid_arg, cap_t caps); |
88 | extern unative_t sys_cap_revoke(sysarg64_t *uspace_taskid_arg, cap_t caps); |
88 | extern unative_t sys_cap_revoke(sysarg64_t *uspace_taskid_arg, cap_t caps); |
89 | 89 | ||
90 | #endif |
90 | #endif |
91 | 91 | ||
92 | /** @} |
92 | /** @} |
93 | */ |
93 | */ |
94 | - | ||
95 | 94 |