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| Rev 1308 | Rev 1653 | ||
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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 libc |
|
| - | 30 | * @{ |
|
| - | 31 | */ |
|
| 29 | /** |
32 | /** |
| 30 | * @file cap.c |
33 | * @file cap.c |
| 31 | * @brief Functions to grant/revoke capabilities to/from a task. |
34 | * @brief Functions to grant/revoke capabilities to/from a task. |
| 32 | */ |
35 | */ |
| 33 | 36 | ||
| 34 | #include <cap.h> |
37 | #include <cap.h> |
| 35 | #include <task.h> |
38 | #include <task.h> |
| 36 | #include <libc.h> |
39 | #include <libc.h> |
| 37 | #include <kernel/syscall/sysarg64.h> |
40 | #include <kernel/syscall/sysarg64.h> |
| 38 | 41 | ||
| 39 | /** Grant capabilities to a task. |
42 | /** Grant capabilities to a task. |
| 40 | * |
43 | * |
| 41 | * @param id Destination task ID. |
44 | * @param id Destination task ID. |
| 42 | * @param caps Capabilities to grant. |
45 | * @param caps Capabilities to grant. |
| 43 | * |
46 | * |
| 44 | * @return Zero on success or a value from @ref errno.h on failure. |
47 | * @return Zero on success or a value from @ref errno.h on failure. |
| 45 | */ |
48 | */ |
| 46 | int cap_grant(task_id_t id, unsigned int caps) |
49 | int cap_grant(task_id_t id, unsigned int caps) |
| 47 | { |
50 | { |
| 48 | sysarg64_t arg; |
51 | sysarg64_t arg; |
| 49 | 52 | ||
| 50 | arg.value = (unsigned long long) id; |
53 | arg.value = (unsigned long long) id; |
| 51 | 54 | ||
| 52 | __SYSCALL2(SYS_CAP_GRANT, (sysarg_t) &arg, (sysarg_t) caps); |
55 | __SYSCALL2(SYS_CAP_GRANT, (sysarg_t) &arg, (sysarg_t) caps); |
| 53 | } |
56 | } |
| 54 | 57 | ||
| 55 | /** Revoke capabilities from a task. |
58 | /** Revoke capabilities from a task. |
| 56 | * |
59 | * |
| 57 | * @param id Destination task ID. |
60 | * @param id Destination task ID. |
| 58 | * @param caps Capabilities to revoke. |
61 | * @param caps Capabilities to revoke. |
| 59 | * |
62 | * |
| 60 | * @return Zero on success or a value from @ref errno.h on failure. |
63 | * @return Zero on success or a value from @ref errno.h on failure. |
| 61 | */ |
64 | */ |
| 62 | int cap_revoke(task_id_t id, unsigned int caps) |
65 | int cap_revoke(task_id_t id, unsigned int caps) |
| 63 | { |
66 | { |
| 64 | sysarg64_t arg; |
67 | sysarg64_t arg; |
| 65 | 68 | ||
| 66 | arg.value = (unsigned long long) id; |
69 | arg.value = (unsigned long long) id; |
| 67 | 70 | ||
| 68 | __SYSCALL2(SYS_CAP_REVOKE, (sysarg_t) &arg, (sysarg_t) caps); |
71 | __SYSCALL2(SYS_CAP_REVOKE, (sysarg_t) &arg, (sysarg_t) caps); |
| 69 | } |
72 | } |
| - | 73 | ||
| - | 74 | ||
| - | 75 | /** @} |
|
| - | 76 | */ |
|
| - | 77 | ||
| - | 78 | ||
| 70 | 79 | ||