e090013056
/etc CHANGES: - /etc/drivers.conf has been renamed to /etc/system.conf. Every entry in the file is now marked as "service" rather than driver. - user "service" has been added to password file /etc/passwd. - docs/UPDATING updated accordingly, as well as every other mention to the old drivers.conf in the system. RS CHANGES: - No more distinction between servers and drivers. - RS_START has been renamed to RS_UP and the old legacy RS_UP and RS_UP_COPY dropped. - RS asks PCI to set / remove ACL entries only for services whose ACL properties have been set. This change eliminates unnecessary warnings. - Temporarily minimize the risk of potential races at boot time or when starting a new service. Upcoming changes will eliminate races completely. - General cleanup.
84 lines
4 KiB
C
84 lines
4 KiB
C
/* Global constants used in RS.
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*/
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#ifndef RS_CONST_H
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#define RS_CONST_H
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/* Space reserved for program and arguments. */
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#define MAX_COMMAND_LEN 512 /* maximum argument string length */
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#define MAX_LABEL_LEN 16 /* Unique name of (this instance of)
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* the service
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*/
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#define MAX_SCRIPT_LEN 256 /* maximum restart script name length */
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#define MAX_NR_ARGS 4 /* maximum number of arguments */
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#define MAX_RESCUE_DIR_LEN 64 /* maximum rescue dir length */
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#define MAX_IPC_LIST 256 /* Max size of list for IPC target
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* process names
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*/
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#define MAX_VM_LIST 256
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/* Flag values. */
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#define RS_IN_USE 0x001 /* set when process slot is in use */
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#define RS_EXITING 0x004 /* set when exit is expected */
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#define RS_REFRESHING 0x008 /* set when refresh must be done */
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#define RS_NOPINGREPLY 0x010 /* service failed to reply to a ping request */
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#define RS_KILLED 0x020 /* service is killed */
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#define RS_CRASHED 0x040 /* service crashed */
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#define RS_LATEREPLY 0x080 /* no reply sent to RS_DOWN caller yet */
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#define RS_SIGNALED 0x100 /* service crashed */
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/* Sys flag values. */
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#define SF_CORE_PROC 0x001 /* set for core system processes
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* XXX FIXME: This should trigger a system
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* panic when a CORE_PROC service cannot
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* be restarted. We need better error-handling
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* in RS to change this.
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*/
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#define SF_NEED_COPY 0x004 /* set when process needs copy to restart */
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#define SF_USE_COPY 0x008 /* set when process has a copy in memory */
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/* Constants determining RS period and binary exponential backoff. */
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#define RS_DELTA_T 60 /* check every T ticks */
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#define BACKOFF_BITS (sizeof(long)*8) /* bits in backoff field */
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#define MAX_BACKOFF 30 /* max backoff in RS_DELTA_T */
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/* Magic process table addresses. */
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#define BEG_RPROC_ADDR (&rproc[0])
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#define END_RPROC_ADDR (&rproc[NR_SYS_PROCS])
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#define NIL_RPROC ((struct mproc *) 0)
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/* Definitions for boot info tables. */
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#define NULL_BOOT_NR NR_BOOT_PROCS /* marks a null boot entry */
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#define DEFAULT_BOOT_NR NR_BOOT_PROCS /* marks the default boot entry */
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#define SYS_ALL_C (NR_SYS_CALLS+0) /* specifies all calls */
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#define SYS_NULL_C (NR_SYS_CALLS+1) /* marks a null call entry */
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/* Define privilege flags for the various process types. */
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#define SRV_F (SYS_PROC | PREEMPTIBLE) /* system services */
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#define DSRV_F (SRV_F | DYN_PRIV_ID | CHECK_IO_PORT | CHECK_IRQ)
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/* dynamic system services */
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#define VM_F (SYS_PROC) /* vm */
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#define RUSR_F (BILLABLE | PREEMPTIBLE) /* root user proc */
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/* Define system call traps for the various process types. These call masks
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* determine what system call traps a process is allowed to make.
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*/
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#define SRV_T (~0) /* system services */
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#define DSRV_T SRV_T /* dynamic system services */
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#define RUSR_T (1 << SENDREC) /* root user proc */
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/* Send masks determine to whom processes can send messages or notifications. */
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#define SRV_M (~0) /* system services */
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#define RUSR_M \
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( spi_to(PM_PROC_NR) | spi_to(FS_PROC_NR) | spi_to(RS_PROC_NR) \
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| spi_to(VM_PROC_NR) ) /* root user proc */
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/* Define sys flags for the various process types. */
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#define SRV_SF (SF_CORE_PROC | SF_NEED_COPY) /* system services */
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#define SRVC_SF (SRV_SF | SF_USE_COPY) /* system services with a copy */
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#define DSRV_SF (0) /* dynamic system services */
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#endif /* RS_CONST_H */
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