1 | /** |
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2 | * @file |
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3 | * |
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4 | * @ingroup rtems_bsd_rtems |
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5 | * |
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6 | * @brief This object is an minimal rtems implementation of kern_jail.c. |
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7 | */ |
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8 | |
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9 | /* |
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10 | * Copyright (c) 2009, 2010 embedded brains GmbH. All rights reserved. |
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11 | * |
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12 | * embedded brains GmbH |
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13 | * Obere Lagerstr. 30 |
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14 | * 82178 Puchheim |
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15 | * Germany |
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16 | * <rtems@embedded-brains.de> |
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17 | * |
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18 | * Redistribution and use in source and binary forms, with or without |
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19 | * modification, are permitted provided that the following conditions |
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20 | * are met: |
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21 | * 1. Redistributions of source code must retain the above copyright |
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22 | * notice, this list of conditions and the following disclaimer. |
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23 | * 2. Redistributions in binary form must reproduce the above copyright |
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24 | * notice, this list of conditions and the following disclaimer in the |
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25 | * documentation and/or other materials provided with the distribution. |
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26 | * |
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27 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
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28 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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29 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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30 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
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31 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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32 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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33 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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34 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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35 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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36 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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37 | * SUCH DAMAGE. |
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38 | */ |
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39 | |
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40 | #include <machine/rtems-bsd-kernel-space.h> |
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41 | |
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42 | /*#include <sys/types.h> |
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43 | #include <sys/systm.h> |
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44 | #include <sys/malloc.h> |
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45 | #include <sys/jail.h> |
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46 | #include <sys/lock.h> |
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47 | #include <sys/mutex.h>*/ |
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48 | |
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49 | #include <sys/param.h> |
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50 | #include <sys/types.h> |
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51 | #include <sys/kernel.h> |
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52 | #include <sys/systm.h> |
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53 | #include <sys/errno.h> |
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54 | #include <sys/sysproto.h> |
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55 | #include <sys/malloc.h> |
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56 | #include <sys/osd.h> |
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57 | #include <sys/priv.h> |
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58 | #include <sys/proc.h> |
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59 | #include <sys/taskqueue.h> |
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60 | #include <sys/fcntl.h> |
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61 | #include <sys/jail.h> |
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62 | #include <sys/lock.h> |
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63 | #include <sys/mutex.h> |
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64 | #include <sys/sx.h> |
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65 | #include <sys/sysent.h> |
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66 | #include <sys/namei.h> |
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67 | #include <sys/mount.h> |
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68 | #include <sys/queue.h> |
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69 | #include <sys/socket.h> |
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70 | #include <sys/syscallsubr.h> |
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71 | #include <sys/sysctl.h> |
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72 | |
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73 | #define DEFAULT_HOSTUUID "00000000-0000-0000-0000-000000000000" |
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74 | |
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75 | /* Keep struct prison prison0 and some code in kern_jail_set() readable. */ |
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76 | #ifdef INET |
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77 | #ifdef INET6 |
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78 | #define _PR_IP_SADDRSEL PR_IP4_SADDRSEL|PR_IP6_SADDRSEL |
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79 | #else |
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80 | #define _PR_IP_SADDRSEL PR_IP4_SADDRSEL |
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81 | #endif |
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82 | #else /* !INET */ |
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83 | #ifdef INET6 |
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84 | #define _PR_IP_SADDRSEL PR_IP6_SADDRSEL |
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85 | #else |
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86 | #define _PR_IP_SADDRSEL 0 |
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87 | #endif |
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88 | #endif |
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89 | |
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90 | /* prison0 describes what is "real" about the system. */ |
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91 | struct prison prison0 = { |
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92 | .pr_id = 0, |
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93 | .pr_name = "0", |
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94 | .pr_ref = 1, |
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95 | .pr_uref = 1, |
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96 | .pr_path = "/", |
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97 | .pr_securelevel = -1, |
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98 | .pr_childmax = JAIL_MAX, |
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99 | .pr_hostuuid = DEFAULT_HOSTUUID, |
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100 | .pr_children = LIST_HEAD_INITIALIZER(prison0.pr_children), |
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101 | #ifdef VIMAGE |
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102 | .pr_flags = PR_HOST|PR_VNET|_PR_IP_SADDRSEL, |
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103 | #else |
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104 | .pr_flags = PR_HOST|_PR_IP_SADDRSEL, |
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105 | #endif |
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106 | .pr_allow = PR_ALLOW_ALL_STATIC |
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107 | }; |
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108 | MTX_SYSINIT(prison0, &prison0.pr_mtx, "jail mutex", MTX_DEF); |
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