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| 1 | 13 | up20180614 | /* Privilege-related definitions. */
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| 2 | |||
| 3 | #ifndef _MINIX_PRIV_H
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| 4 | #define _MINIX_PRIV_H
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| 5 | |||
| 6 | #include <minix/com.h> |
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| 7 | #include <minix/config.h> |
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| 8 | |||
| 9 | /* Static privilege id definitions. */
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| 10 | #define NR_STATIC_PRIV_IDS NR_BOOT_PROCS
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| 11 | #define is_static_priv_id(id) (id >= 0 && id < NR_STATIC_PRIV_IDS) |
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| 12 | #define static_priv_id(n) (NR_TASKS + (n))
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| 13 | |||
| 14 | /* Unprivileged user processes all share the privilege structure of the
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| 15 | * user processesess.
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| 16 | * This id must be fixed because it is used to check send mask entries.
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| 17 | */
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| 18 | #define USER_PRIV_ID static_priv_id(ROOT_USR_PROC_NR)
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| 19 | /* Specifies a null privilege id.
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| 20 | */
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| 21 | #define NULL_PRIV_ID (-1) |
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| 22 | |||
| 23 | /* Allowed targets. */
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| 24 | #define NO_M (-1) /* no targets allowed */ |
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| 25 | #define ALL_M (-2) /* all targets allowed */ |
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| 26 | |||
| 27 | /* Allowed calls. */
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| 28 | #define NO_C (-1) /* no calls allowed */ |
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| 29 | #define ALL_C (-2) /* all calls allowed */ |
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| 30 | #define NULL_C (-3) /* null call entry */ |
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| 31 | |||
| 32 | /*
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| 33 | * Default privilege settings used in the system
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| 34 | */
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| 35 | /* privilege flags */
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| 36 | #define IDL_F (SYS_PROC | BILLABLE) /* idle task is not preemptible as we |
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| 37 | * don't want it to interfere with the
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| 38 | * timer tick interrupt handler code.
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| 39 | * Unlike other processes idle task is
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| 40 | * handled in a special way and is
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| 41 | * preempted always if timer tick occurs
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| 42 | * and there is another runnable process
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| 43 | */
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| 44 | #define TSK_F (SYS_PROC) /* other kernel tasks */ |
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| 45 | #define SRV_F (SYS_PROC | PREEMPTIBLE) /* system services */ |
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| 46 | #define DSRV_F (SRV_F | DYN_PRIV_ID) /* dynamic system services */ |
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| 47 | #define RSYS_F (SRV_F | ROOT_SYS_PROC) /* root sys proc */ |
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| 48 | #define VM_F (SYS_PROC | VM_SYS_PROC) /* vm */ |
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| 49 | #define USR_F (BILLABLE | PREEMPTIBLE) /* user processes */ |
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| 50 | #define IMM_F (ROOT_SYS_PROC | VM_SYS_PROC | PREEMPTIBLE) /* immutable */ |
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| 51 | |||
| 52 | /* init flags */
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| 53 | #define TSK_I 0 /* all kernel tasks */ |
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| 54 | #define SRV_I 0 /* system services */ |
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| 55 | #define DSRV_I 0 /* dynamic system services */ |
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| 56 | #define USR_I 0 /* user processes */ |
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| 57 | |||
| 58 | /* allowed traps */
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| 59 | #define CSK_T (1 << RECEIVE) /* clock and system */ |
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| 60 | #define TSK_T 0 /* other kernel tasks */ |
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| 61 | #define SRV_T (~0) /* system services */ |
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| 62 | #define DSRV_T (~0) /* dynamic system services */ |
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| 63 | #define USR_T (1 << SENDREC) /* user processes */ |
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| 64 | |||
| 65 | /* allowed targets */
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| 66 | #define TSK_M NO_M /* all kernel tasks */ |
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| 67 | #define SRV_M ALL_M /* system services */ |
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| 68 | #define DSRV_M ALL_M /* dynamic system services */ |
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| 69 | #define USR_M ALL_M /* user processes */ |
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| 70 | |||
| 71 | /* allowed kernel calls */
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| 72 | #define TSK_KC NO_C /* all kernel tasks */ |
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| 73 | #define SRV_KC ALL_C /* dynamic system services */ |
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| 74 | #define DSRV_KC ALL_C /* default sys proc */ |
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| 75 | #define USR_KC NO_C /* user processes */ |
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| 76 | |||
| 77 | /* allowed vm calls */
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| 78 | #define SRV_VC ALL_C /* dynamic system services */ |
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| 79 | #define DSRV_VC ALL_C /* default sys proc */ |
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| 80 | #define USR_VC ALL_C /* user processes */ |
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| 81 | |||
| 82 | /* signal manager */
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| 83 | #define SRV_SM ROOT_SYS_PROC_NR /* system services */ |
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| 84 | #define DSRV_SM ROOT_SYS_PROC_NR /* dynamic system services */ |
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| 85 | #define USR_SM PM_PROC_NR /* user processes */ |
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| 86 | |||
| 87 | /* scheduler */
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| 88 | #define SRV_SCH KERNEL /* system services */ |
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| 89 | #define DSRV_SCH SCHED_PROC_NR /* dynamic system services */ |
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| 90 | #define USR_SCH NONE /* user processes */ |
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| 91 | |||
| 92 | /* scheduling priority queue. */
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| 93 | #define SRV_Q USER_Q /* system services */ |
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| 94 | #define DSRV_Q USER_Q /* dynamic system services */ |
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| 95 | #define USR_Q USER_Q /* user processes */ |
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| 96 | |||
| 97 | /* scheduling quantum. */
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| 98 | #define SRV_QT USER_QUANTUM /* system services */ |
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| 99 | #define DSRV_QT USER_QUANTUM /* dynamic system services */ |
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| 100 | #define USR_QT USER_QUANTUM /* user processes */ |
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| 101 | |||
| 102 | /* default CPU */
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| 103 | #define DSRV_CPU USER_DEFAULT_CPU
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| 104 | |||
| 105 | #endif /* _MINIX_PRIV_H */ |