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Dynamic configuration in system.conf for boot system services.

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This commit is contained in:
Cristiano Giuffrida
2010-07-13 21:11:44 +00:00
parent f6e558f5d4
commit f8a8ea0a79
20 changed files with 938 additions and 629 deletions
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55
kernel/priv.h
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@@ -60,11 +60,6 @@ struct priv {
/* Guard word for task stacks. */
#define STACK_GUARD ((reg_t) (sizeof(reg_t) == 2 ? 0xBEEF : 0xDEADBEEF))
/* Static privilege id definitions. */
#define NR_STATIC_PRIV_IDS NR_BOOT_PROCS
#define is_static_priv_id(id) (id >= 0 && id < NR_STATIC_PRIV_IDS)
#define static_priv_id(n) (NR_TASKS + (n))
/* Magic system structure table addresses. */
#define BEG_PRIV_ADDR (&priv[0])
#define END_PRIV_ADDR (&priv[NR_SYS_PROCS])
@@ -82,10 +77,6 @@ struct priv {
#define may_send_to(rp, nr) (get_sys_bit(priv(rp)->s_ipc_to, nr_to_id(nr)))
/* Privilege management shorthands. */
#define spi_to(n) (1 << (static_priv_id(n)))
#define unset_usr_to(m) ((m) & ~(1 << USER_PRIV_ID))
/* The system structures table and pointers to individual table slots. The
* pointers allow faster access because now a process entry can be found by
* indexing the psys_addr array, while accessing an element i requires a
@@ -94,15 +85,6 @@ struct priv {
EXTERN struct priv priv[NR_SYS_PROCS]; /* system properties table */
EXTERN struct priv *ppriv_addr[NR_SYS_PROCS]; /* direct slot pointers */
/* Unprivileged user processes all share the privilege structure of the
* root user process.
* This id must be fixed because it is used to check send mask entries.
*/
#define USER_PRIV_ID static_priv_id(ROOT_USR_PROC_NR)
/* Specifies a null privilege id.
*/
#define NULL_PRIV_ID (-1)
/* Make sure the system can boot. The following sanity check verifies that
* the system privileges table is large enough for the number of processes
* in the boot image.
@@ -111,41 +93,4 @@ EXTERN struct priv *ppriv_addr[NR_SYS_PROCS]; /* direct slot pointers */
#error NR_SYS_PROCS must be larger than NR_BOOT_PROCS
#endif
/*
* Privileges masks used by the kernel.
*/
#define IDL_F (SYS_PROC | BILLABLE) /* idle task is not preemptible as we
* don't want it to interfere with the
* timer tick interrupt handler code.
* Unlike other processes idle task is
* handled in a special way and is
* preempted always if timer tick occurs
* and there is another runnable process
*/
#define TSK_F (SYS_PROC) /* other kernel tasks */
#define RSYS_F (SYS_PROC | PREEMPTIBLE | ROOT_SYS_PROC) /* root sys proc */
#define DEF_SYS_F (RSYS_F | DYN_PRIV_ID) /* default sys proc */
/* allowed traps */
#define CSK_T (1 << RECEIVE) /* clock and system */
#define TSK_T 0 /* other kernel tasks */
#define RSYS_T (~0) /* root system proc */
#define DEF_SYS_T RSYS_T /* default sys proc */
/* allowed targets */
#define TSK_M 0 /* all kernel tasks */
#define RSYS_M (~0) /* root system proc */
#define DEF_SYS_M unset_usr_to(RSYS_M) /* default sys proc */
/* allowed kernel calls */
#define NO_C 0 /* no calls allowed */
#define ALL_C 1 /* all calls allowed */
#define TSK_KC NO_C /* all kernel tasks */
#define RSYS_KC ALL_C /* root system proc */
#define DEF_SYS_KC RSYS_KC /* default sys proc */
/* signal manager */
#define RSYS_SM SELF /* root system proc */
#define DEF_SYS_SM ROOT_SYS_PROC_NR /* default sys proc */
#endif /* PRIV_H */