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