scoutos / prex-0.9.0 / usr / server / exec / exec.h @ 03e9c04a
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1 | 03e9c04a | Brad Neuman | /*
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2 | * Copyright (c) 2005-2007, Kohsuke Ohtani
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3 | * All rights reserved.
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4 | *
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5 | * Redistribution and use in source and binary forms, with or without
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6 | * modification, are permitted provided that the following conditions
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7 | * are met:
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8 | * 1. Redistributions of source code must retain the above copyright
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9 | * notice, this list of conditions and the following disclaimer.
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10 | * 2. Redistributions in binary form must reproduce the above copyright
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11 | * notice, this list of conditions and the following disclaimer in the
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12 | * documentation and/or other materials provided with the distribution.
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13 | * 3. Neither the name of the author nor the names of any co-contributors
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14 | * may be used to endorse or promote products derived from this software
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15 | * without specific prior written permission.
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16 | *
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17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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18 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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19 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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20 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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21 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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22 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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23 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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24 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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25 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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26 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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27 | * SUCH DAMAGE.
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28 | */
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29 | |||
30 | #ifndef _EXEC_H
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31 | #define _EXEC_H
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32 | |||
33 | #include <sys/cdefs.h> |
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34 | #include <sys/prex.h> |
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35 | #include <sys/elf.h> |
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36 | #include <sys/param.h> |
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37 | #include <sys/stat.h> |
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38 | #include <ipc/exec.h> |
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39 | |||
40 | #include <unistd.h> |
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41 | #include <assert.h> |
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42 | |||
43 | /* #define DEBUG_EXEC 1 */
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44 | |||
45 | #ifdef DEBUG_EXEC
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46 | #define DPRINTF(a) dprintf a
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47 | #define ASSERT(e) dassert(e)
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48 | #else
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49 | #define DPRINTF(a)
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50 | #define ASSERT(e)
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51 | #endif
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52 | |||
53 | #define HEADER_SIZE 512 |
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54 | |||
55 | /*
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56 | * Exec descriptor
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57 | */
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58 | struct exec {
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59 | char *path; /* path name */ |
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60 | void *header; /* buffer for header */ |
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61 | char *xarg1; /* extra arguments */ |
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62 | char *xarg2; /* extra arguments */ |
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63 | task_t task; /* task id */
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64 | vaddr_t entry; /* entry address */
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65 | }; |
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66 | |||
67 | /*
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68 | * Definition for exec loader
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69 | */
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70 | struct exec_loader {
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71 | const char *el_name; /* name of loader */ |
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72 | void (*el_init)(void); /* initialize routine */ |
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73 | int (*el_probe)(struct exec *); /* probe routine */ |
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74 | int (*el_load)(struct exec *); /* load routine */ |
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75 | }; |
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76 | |||
77 | /*
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78 | * Probe result
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79 | */
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80 | #define PROBE_ERROR 0 |
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81 | #define PROBE_MATCH 1 |
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82 | #define PROBE_INDIRECT 2 |
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83 | |||
84 | |||
85 | /*
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86 | * Capability mapping
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87 | */
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88 | struct cap_map {
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89 | char *c_path; /* application name */ |
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90 | cap_t c_capset; /* capability set */
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91 | }; |
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92 | |||
93 | /*
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94 | * Global variables
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95 | */
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96 | extern struct exec_loader loader_table[]; |
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97 | extern const struct cap_map cap_table[]; |
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98 | extern const int nloader; |
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99 | |||
100 | __BEGIN_DECLS |
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101 | void bind_cap(char *, task_t); |
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102 | int exec_bindcap(struct bind_msg *); |
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103 | int exec_execve(struct exec_msg *); |
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104 | __END_DECLS |
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105 | |||
106 | #endif /* !_EXEC_H */ |