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Drivers and servers are simply known as services.

Browse Source 
/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.
This commit is contained in:
Cristiano Giuffrida 2009-12-17 01:53:26 +00:00
parent b4d6d9db26
commit e090013056
21 changed files with 237 additions and 373 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
commands/scripts/readclock.sh
View File

@ -2,4 +2,4 @@
if [ $# -gt 0 ]
then ARGS="-args $@"
fi
/bin/service up /sbin/readclock.drv -config /etc/drivers.conf -script /etc/rs.single $ARGS
/bin/service up /sbin/readclock.drv -config /etc/system.conf -script /etc/rs.single $ARGS

2
commands/swifi/run_swifi
View File

@ -46,7 +46,7 @@ one_round()
# Start our own driver.
service down $LABEL
sleep 10 # Allow driver to die
service up $EXE -script `pwd`/rs.restart_imm -config /etc/drivers.conf -period 3HZ
service up $EXE -script `pwd`/rs.restart_imm -config /etc/system.conf -period 3HZ
i=0
i=4000

2
commands/swifi/run_t1
View File

@ -103,7 +103,7 @@ esac
# Start our own driver.
service down $LABEL
sleep 2 # Allow driver to die
service up $EXE -script `pwd`/rs.restart_imm -config /etc/drivers.conf -period 3HZ $DEV
service up $EXE -script `pwd`/rs.restart_imm -config /etc/system.conf -period 3HZ $DEV
i=0
while [ $i -lt "$count" ]

2
commands/swifi/run_t2
View File

@ -123,7 +123,7 @@ esac
# Start our own driver.
service down $LABEL
sleep 10 # Allow driver to die
service up $EXE -script `pwd`/rs.restart_imm -config /etc/drivers.conf -period 3HZ
service up $EXE -script `pwd`/rs.restart_imm -config /etc/system.conf -period 3HZ
i=0
while [ $i -lt "$count" ]

4
docs/UPDATING
View File

@ -1,4 +1,6 @@
20091212:
/etc/drivers.conf has been renamed to /etc/system.conf.
user "service" has been added to password file /etc/passwd.
20060818:
You need flex in your $PATH, which has become part of the base
system. This needs bigger binaries.

4
drivers/memory/ramdisk/Makefile
View File

@ -2,7 +2,7 @@
PROGRAMS=at_wini bios_wini cdprobe dev2name floppy loadramdisk newroot \
pci sh service sysenv mfs
EXTRA=drivers.conf passwd
EXTRA=system.conf passwd
MAKEDEV=/usr/bin/MAKEDEV
@ -97,7 +97,7 @@ mfs: ../../../servers/mfs/mfs
../../../servers/mfs/mfs:
cd ../../../servers/mfs && make
drivers.conf: ../../../etc/drivers.conf
system.conf: ../../../etc/system.conf
install -s ../../../etc/$@ $@
passwd: ../../../etc/passwd

2
drivers/memory/ramdisk/proto
View File

@ -21,7 +21,7 @@ d--755 0 0
@DEV@
$
etc d--755 0 0
drivers.conf ---644 0 0 drivers.conf
system.conf ---644 0 0 system.conf
mtab ---644 0 0 mtab
passwd ---644 0 0 passwd
rc ---755 0 0 rc

8
drivers/memory/ramdisk/rc
View File

@ -5,15 +5,15 @@ exec >/dev/log
exec 2>/dev/log
exec </dev/null
/bin/service up /bin/pci -config /etc/drivers.conf
/bin/service -c up /bin/floppy -config /etc/drivers.conf -dev /dev/fd0
/bin/service up /bin/pci -config /etc/system.conf
/bin/service -c up /bin/floppy -config /etc/system.conf -dev /dev/fd0
if [ X`/bin/sysenv bios_wini` = Xyes ]
then
echo Using bios_wini.
/bin/service -c up /bin/bios_wini -dev /dev/c0d0
else
/bin/service -c up /bin/at_wini -dev /dev/c0d0 -config /etc/drivers.conf -label at_wini_0
/bin/service -c up /bin/at_wini -dev /dev/c1d0 -config /etc/drivers.conf -label at_wini_1 -args ata_instance=1
/bin/service -c up /bin/at_wini -dev /dev/c0d0 -config /etc/system.conf -label at_wini_0
/bin/service -c up /bin/at_wini -dev /dev/c1d0 -config /etc/system.conf -label at_wini_1 -args ata_instance=1
fi
rootdev=`sysenv rootdev` || echo 'No rootdev?'

2
drivers/orinoco/INSTALL.txt
View File

@ -10,7 +10,7 @@ This script will patch, compile and install 2 code files in Minix:
/usr/src/commands/dhcpd/devices.c
(see the docs directory for more information)
Furthermore, the script will patch 1 configuration file:
/etc/drivers.conf
/etc/system.conf
(adding an entry for 'orinoco')
and 1 script file:
/usr/etc/rc

2
etc/Makefile
View File

@ -4,7 +4,7 @@ USRETC=/usr/etc/
FILES1=fstab group hostname.file inet.conf motd.install mtab passwd profile \
protocols rc services termcap ttytab utmp rc.cd binary_sizes \
binary_sizes.big binary_sizes.xxl rc.rescue syslog.conf \
rc.daemons.dist rs.inet rs.single make.conf drivers.conf
rc.daemons.dist rs.inet rs.single make.conf system.conf
FILES2=shadow
FILES3=daily dhcptags.conf rc

1
etc/passwd
View File

@ -8,6 +8,7 @@ ast:*:8:3:Andrew S. Tanenbaum:/home/ast:
www:*:9:9:World Wide Web:/usr/www:
driver:*:10:10:Device Drivers:/:
server:*:11:11:OS Servers:/:
service:*:12:12:System Services:/:
sshd:*:22:22:sshd:/:
smtpd:*:25:25:smtpd:/:
games:*:9998:98::/:

182
etc/drivers.conf → etc/system.conf
View File

@ -1,4 +1,4 @@
driver floppy
service floppy
{
irq 6;
io 3f0:8
@ -16,46 +16,48 @@ driver floppy
SAFECOPYFROM # 31
SAFECOPYTO # 32
PROFBUF # 38
SYSCTL
SYSCTL # 44
;
};
driver dp8390
service dp8390
{
system
IRQCTL # 19
DEVIO # 21
SDEVIO # 22
SETALARM # 24
TIMES # 25
GETINFO # 26
SAFECOPYFROM # 31
SAFECOPYTO # 32
SETGRANT # 34
PROFBUF # 38
SYSCTL
SYSCTL # 44
;
pci device 10ec/8029;
uid 0;
};
driver dpeth
service dpeth
{
system
IRQCTL # 19
DEVIO # 21
SDEVIO # 22
SETALARM # 24
TIMES # 25
GETINFO # 26
SAFECOPYFROM # 31
SAFECOPYTO # 32
SETGRANT # 34
PROFBUF # 38
SYSCTL
SYSCTL # 44
;
uid 0;
};
driver lance
service lance
{
system
UMAP # 14
@ -68,13 +70,13 @@ driver lance
SAFECOPYTO # 32
SETGRANT # 34
PROFBUF # 38
SYSCTL
SYSCTL # 44
;
pci device 1022/2000;
uid 0;
};
driver rtl8139
service rtl8139
{
system
UMAP # 14
@ -87,9 +89,9 @@ driver rtl8139
SAFECOPYFROM # 31
SAFECOPYTO # 32
SETGRANT # 34
MAPDMA # 41
PROFBUF # 38
SYSCTL
MAPDMA # 41
SYSCTL # 44
;
pci device 10ec/8139;
pci device 02ac/1012;
@ -114,7 +116,7 @@ driver rtl8139
;
};
driver fxp
service fxp
{
system
UMAP # 14
@ -128,7 +130,7 @@ driver fxp
SAFECOPYTO # 32
SETGRANT # 34
PROFBUF # 38
SYSCTL
SYSCTL # 44
;
pci device 8086/103d;
pci device 8086/1064;
@ -140,19 +142,20 @@ driver fxp
;
};
driver dumpcore
service dumpcore
{
system
TRACE # 5
VIRCOPY # 15
TIMES # 25
GETINFO # 26
SETGRANT # 34
PROFBUF # 38
SYSCTL
SYSCTL # 44
;
};
driver inet
service inet
{
system
SETALARM # 24
@ -163,50 +166,51 @@ driver inet
VSAFECOPY # 33
SETGRANT # 34
PROFBUF # 38
SYSCTL
SYSCTL # 44
;
uid 0;
};
driver random
service random
{
system
UMAP # 14
SETALARM # 24
TIMES # 25
GETINFO # 26
SAFECOPYFROM # 31
SAFECOPYTO # 32
SETGRANT # 34
PROFBUF # 38
SYSCTL
SYSCTL # 44
;
};
driver readclock.drv
service readclock.drv
{
io 70:2;
system
DEVIO # 21
TIMES # 25
GETINFO # 26
SAFECOPYFROM # 31
SAFECOPYTO # 32
SAFECOPYFROM # 32
SETGRANT # 34
READBIOS # 35
PROFBUF # 38
SYSCTL
SYSCTL # 44
;
uid 0;
};
driver is
service is
{
system
TIMES # 25
GETINFO # 26
SETGRANT # 34
PROFBUF # 38
SYSCTL
SYSCTL # 44
;
vm
CTL
@ -214,7 +218,7 @@ driver is
uid 0;
};
driver pci
service pci
{
io cf8:8 # PCI bus controller
4d0:2 # PIIX
@ -222,17 +226,18 @@ driver pci
system
PRIVCTL # 4
DEVIO # 21
TIMES # 25
GETINFO # 26
SAFECOPYFROM # 31
SAFECOPYTO # 32
SETGRANT # 34
PROFBUF # 38
SYSCTL
SYSCTL # 44
;
uid 0;
};
driver at_wini
service at_wini
{
io 1f0:8 # Controller 0
3f6 # Also controller 0
@ -257,7 +262,7 @@ driver at_wini
SETGRANT # 34
READBIOS # 35
PROFBUF # 38
SYSCTL
SYSCTL # 44
;
pci class
1/1 # Mass storage / IDE
@ -265,10 +270,11 @@ driver at_wini
;
};
driver bios_wini
service bios_wini
{
system
UMAP # 14
INT86 # 20
SETALARM # 24
TIMES # 25
GETINFO # 26
@ -277,41 +283,40 @@ driver bios_wini
SETGRANT # 34
READBIOS # 35
PROFBUF # 38
SYSCTL
INT86
SYSCTL # 44
;
};
driver mfs
service mfs
{
system
TIMES # 25
GETINFO # 26
SAFECOPYFROM # 31
SAFECOPYTO # 32
GETINFO
SETGRANT # 34
PROFBUF # 38
SYSCTL
SYSCTL # 44
;
uid 0;
};
driver isofs
service isofs
{
system
TIMES # 25
SAFECOPYFROM # 31
SAFECOPYTO # 32
GETINFO
SETGRANT # 34
UMAP # 14
TIMES # 25
GETINFO # 26
SAFECOPYFROM # 31
SAFECOPYTO # 32
SETGRANT # 34
PROFBUF # 38
SYSCTL
SYSCTL # 44
;
uid 0;
};
driver printer
service printer
{
io 378:4 # LPT1
278:4 # LPT2
@ -320,27 +325,26 @@ driver printer
7 # PRINTER_IRQ
;
system
KILL # 6
SETGRANT # 34
UMAP # 14
VIRCOPY # 15
IRQCTL # 19
DEVIO # 21
VDEVIO # 23
GETINFO # 26
SAFECOPYFROM # 31
SAFECOPYTO # 32
KILL # 6
UMAP # 14
VIRCOPY # 15
IRQCTL # 19
DEVIO # 21
VDEVIO # 23
TIMES # 25
GETINFO # 26
SAFECOPYFROM # 31
SAFECOPYTO # 32
SETGRANT # 34
PROFBUF # 38
SYSCTL
SYSCTL # 44
;
};
driver orinoco
service orinoco
{
system
PRIVCTL # 4
DEVIO # 21
GETINFO # 26
UMAP # 14
IRQCTL # 19
DEVIO # 21
@ -348,41 +352,43 @@ driver orinoco
SETALARM # 24
TIMES # 25
GETINFO # 26
VM_MAP # 30
SAFECOPYFROM # 31
SAFECOPYTO # 32
SETGRANT # 34
VM_MAP # 30
PROFBUF # 38
SYSCTL
SYSCTL # 44
;
pci device 1260/3873;
pci device 1186/1300;
uid 0;
};
driver es1370
service es1370
{
system
SAFECOPYFROM
SAFECOPYTO
UMAP
GETINFO
SETGRANT
UMAP # 14
IRQCTL # 19
DEVIO # 21
TIMES # 25
GETINFO # 26
SAFECOPYFROM # 31
SAFECOPYTO # 32
SETGRANT # 34
PROFBUF # 38
SYSCTL
SYSCTL # 44
;
pci device 1274/5000;
};
driver es1371
service es1371
{
system
SAFECOPYFROM
SAFECOPYTO
UMAP
SETGRANT
TIMES # 25
GETINFO
IRQCTL # 19
DEVIO # 21
@ -392,30 +398,33 @@ driver es1371
pci device 1274/1371;
};
driver amddev
service amddev
{
pci device 1022/1103;
system
UMAP # 14
TIMES # 25
GETINFO # 26
SETGRANT # 34
GETINFO
REGDEV # 40
PROFBUF # 38
SYSCTL
REGDEV # 40
SYSCTL # 44
;
uid 0;
};
driver ipc
service ipc
{
system
UMAP
PROFBUF
SAFECOPYFROM
SAFECOPYTO
VIRCOPY
SETGRANT
SYSCTL
UMAP # 14
VIRCOPY # 15
TIMES # 25
GETINFO # 26
SAFECOPYFROM # 31
SAFECOPYTO # 32
SETGRANT # 34
PROFBUF # 38
SYSCTL # 44
;
uid 0;
ipc
@ -437,11 +446,10 @@ driver ipc
;
};
driver osscore
service osscore
{
system
PRIVCTL # 4
DEVIO # 21
UMAP # 14
IRQCTL # 19
DEVIO # 21
@ -453,7 +461,7 @@ driver osscore
SAFECOPYTO # 32
SETGRANT # 34
PROFBUF # 38
SYSCTL
SYSCTL # 44
;
pci class
4/1 # Multimedia / Audio device
@ -465,7 +473,7 @@ driver osscore
uid 0;
};
driver rtl8169
service rtl8169
{
system
UMAP # 14
@ -478,9 +486,9 @@ driver rtl8169
SAFECOPYFROM # 31
SAFECOPYTO # 32
SETGRANT # 34
MAPDMA # 41
PROFBUF # 38
SYSCTL
MAPDMA # 41
SYSCTL # 44
;
pci device 10ec/8129;
pci device 10ec/8167;
@ -496,7 +504,7 @@ driver rtl8169
;
};
driver filter
service filter
{
system
SETALARM # 24
@ -518,7 +526,7 @@ driver filter
;
};
driver e1000
service e1000
{
system
UMAP # 14
@ -530,7 +538,7 @@ driver e1000
SAFECOPYFROM # 31
SAFECOPYTO # 32
SETGRANT # 34
SYSCTL
SYSCTL # 44
;
pci device 8086/100e;
pci device 8086/107c;

12
include/minix/com.h
View File

@ -64,7 +64,7 @@
#define PM_PROC_NR 0 /* process manager */
#define FS_PROC_NR 1 /* file system */
#define VFS_PROC_NR FS_PROC_NR /* FS has been renamed to VFS. */
#define RS_PROC_NR 2 /* memory driver (RAM disk, null, etc.) */
#define RS_PROC_NR 2 /* reincarnation server */
#define MEM_PROC_NR 3 /* memory driver (RAM disk, null, etc.) */
#define LOG_PROC_NR 4 /* log device driver */
#define TTY_PROC_NR 5 /* terminal (TTY) driver */
@ -675,14 +675,8 @@
#define RS_DOWN (RS_RQ_BASE + 1) /* stop system service */
#define RS_REFRESH (RS_RQ_BASE + 2) /* refresh system service */
#define RS_RESTART (RS_RQ_BASE + 3) /* restart system service */
#define RS_SHUTDOWN (RS_RQ_BASE + 5) /* alert about shutdown */
#define RS_UP_COPY (RS_RQ_BASE + 6) /* start system service and
* keep the binary in memory
*/
#define RS_START (RS_RQ_BASE + 7) /* start a driver/service
* arguments are passed in
* a struct rs_start
*/
#define RS_SHUTDOWN (RS_RQ_BASE + 4) /* alert about shutdown */
#define RS_LOOKUP (RS_RQ_BASE + 8) /* lookup server name */
# define RS_CMD_ADDR m1_p1 /* command string */

2
include/minix/paths.h
View File

@ -18,6 +18,6 @@
#define _PATH_BSHELL "/bin/sh"
#define _PATH_SERVICE "/bin/service"
#define _PATH_DRIVERS_CONF "/etc/drivers.conf"
#define _PATH_SYSTEM_CONF "/etc/system.conf"
#endif

4
lib/other/_mount.c
View File

@ -97,14 +97,14 @@ int mountflags;
}
if(strlen(_PATH_SERVICE)+strlen(path)+strlen(label)+
strlen(_PATH_DRIVERS_CONF)+strlen(args)+50 >= sizeof(cmd)) {
strlen(_PATH_SYSTEM_CONF)+strlen(args)+50 >= sizeof(cmd)) {
errno = E2BIG;
return -1;
}
sprintf(cmd, _PATH_SERVICE " %sup %s -label '%s' -config " _PATH_DRIVERS_CONF
sprintf(cmd, _PATH_SERVICE " %sup %s -label '%s' -config " _PATH_SYSTEM_CONF
" -args '%s%s' -printep yes",
reuse ? "-r ": "", path, label, args[0] ? "-o " : "", args);

10
servers/rs/const.h
View File

@ -6,7 +6,7 @@
/* Space reserved for program and arguments. */
#define MAX_COMMAND_LEN 512 /* maximum argument string length */
#define MAX_LABEL_LEN 16 /* Unique name of (this instance of)
* the driver
* the service
*/
#define MAX_SCRIPT_LEN 256 /* maximum restart script name length */
#define MAX_NR_ARGS 4 /* maximum number of arguments */
@ -21,11 +21,11 @@
#define RS_IN_USE 0x001 /* set when process slot is in use */
#define RS_EXITING 0x004 /* set when exit is expected */
#define RS_REFRESHING 0x008 /* set when refresh must be done */
#define RS_NOPINGREPLY 0x010 /* driver failed to reply to a ping request */
#define RS_KILLED 0x020 /* driver is killed */
#define RS_CRASHED 0x040 /* driver crashed */
#define RS_NOPINGREPLY 0x010 /* service failed to reply to a ping request */
#define RS_KILLED 0x020 /* service is killed */
#define RS_CRASHED 0x040 /* service crashed */
#define RS_LATEREPLY 0x080 /* no reply sent to RS_DOWN caller yet */
#define RS_SIGNALED 0x100 /* driver crashed */
#define RS_SIGNALED 0x100 /* service crashed */
/* Sys flag values. */
#define SF_CORE_PROC 0x001 /* set for core system processes

73
servers/rs/main.c
View File

@ -86,7 +86,7 @@ PUBLIC int main(void)
if (is_notify(m.m_type)) {
switch (who_p) {
case CLOCK:
do_period(&m); /* check drivers status */
do_period(&m); /* check services status */
continue;
case PM_PROC_NR:
sig_handler();
@ -116,9 +116,7 @@ PUBLIC int main(void)
/* Handler functions are responsible for permission checking. */
switch(call_nr) {
case RS_UP: result = do_up(&m, FALSE, 0); break;
case RS_UP_COPY: result = do_up(&m, TRUE, 0); break;
case RS_START: result = do_start(&m); break;
case RS_UP: result = do_up(&m); break;
case RS_DOWN: result = do_down(&m); break;
case RS_REFRESH: result = do_refresh(&m); break;
case RS_RESTART: result = do_restart(&m); break;
@ -455,6 +453,32 @@ PRIVATE void init_server(void)
rp->r_dev_nr = boot_image_dev->dev_nr; /* major device number */
rp->r_dev_style = boot_image_dev->dev_style; /* device style */
rp->r_period = boot_image_dev->period; /* heartbeat period */
/* Get label. */
strcpy(rp->r_label, ip->proc_name);
/* Get command settings. */
rp->r_cmd[0]= '\0';
rp->r_argv[0] = rp->r_cmd;
rp->r_argv[1] = NULL;
rp->r_argc = 1;
rp->r_script[0]= '\0';
/* Get some settings from the boot image table. */
rp->r_nice = ip->priority;
rp->r_proc_nr_e = ip->endpoint;
/* Set some defaults. */
rp->r_uid = 0; /* root */
rp->r_check_tm = 0; /* not checked yet */
getuptime(&rp->r_alive_tm); /* currently alive */
rp->r_stop_tm = 0; /* not exiting yet */
rp->r_restarts = 0; /* no restarts so far */
rp->r_set_resources = 0; /* don't set resources */
/* Mark as in use. */
rp->r_flags = RS_IN_USE;
rproc_ptr[_ENDPOINT_P(rp->r_proc_nr_e)]= rp;
}
/* - Step 2: allow every system service in the boot image to run.
@ -477,9 +501,9 @@ PRIVATE void init_server(void)
}
}
/* - Step 3: all the system services in the boot image are now running. Use
* the boot image table from the kernel and PM process table to complete
* the initialization of the system process table.
/* - Step 3: all the system services in the boot image are now running.
* Complete the initialization of the system process table in collaboration
* with other system processes.
*/
if ((s = getsysinfo(PM_PROC_NR, SI_PROC_TAB, mproc)) != OK) {
panic("RS", "unable to get copy of PM process table", s);
@ -492,25 +516,9 @@ PRIVATE void init_server(void)
continue;
}
/* Lookup the corresponding entry in the boot image table. */
boot_image_info_lookup(boot_image_priv->endpoint, image,
&ip, NULL, NULL, NULL);
/* Lookup the corresponding slot in the system process table. */
rp = &rproc[boot_image_priv - boot_image_priv_table];
/* Get label. */
strcpy(rp->r_label, ip->proc_name);
/* Get command settings. */
rp->r_cmd[0]= '\0';
rp->r_argv[0] = rp->r_cmd;
rp->r_argv[1] = NULL;
rp->r_argc = 1;
rp->r_script[0]= '\0';
/* Get settings from the boot image table. */
rp->r_nice = ip->priority;
rp->r_proc_nr_e = ip->endpoint;
/* Get pid from PM process table. */
rp->r_pid = NO_PID;
for (j = 0; j < NR_PROCS; j++) {
@ -523,19 +531,10 @@ PRIVATE void init_server(void)
panic("RS", "unable to get pid", NO_NUM);
}
/* Set some defaults. */
rp->r_uid = 0; /* root */
rp->r_check_tm = 0; /* not checked yet */
getuptime(&rp->r_alive_tm); /* currently alive */
rp->r_stop_tm = 0; /* not exiting yet */
rp->r_restarts = 0; /* no restarts so far */
rp->r_set_resources = 0; /* no resources */
/* Mark as in use. */
rp->r_flags = RS_IN_USE;
rproc_ptr[_ENDPOINT_P(rp->r_proc_nr_e)]= rp;
/* Publish the new system service. */
/* Publish the new system service.
* XXX FIXME. Possible race condition. We should publish labels before
* allowing other processes to run.
*/
s = publish_service(rp);
if (s != OK) {
panic("RS", "unable to publish boot system service", s);

212
servers/rs/manager.c
View File

@ -128,120 +128,14 @@ size_t dst_len;
dst_label[len] = 0;
if (rs_verbose)
printf("RS: do_start: using label (custom) '%s'\n", dst_label);
printf("RS: copy_label: using label (custom) '%s'\n", dst_label);
return OK;
}
/*===========================================================================*
* do_up *
* do_up *
*===========================================================================*/
PUBLIC int do_up(m_ptr, do_copy, flags)
message *m_ptr; /* request message pointer */
int do_copy; /* keep copy in memory */
int flags; /* extra flags, if any */
{
/* A request was made to start a new system service. Dismember the request
* message and gather all information needed to start the service. Starting
* is done by a helper routine.
*/
register struct rproc *rp; /* system process table */
int slot_nr; /* local table entry */
int arg_count; /* number of arguments */
char *cmd_ptr; /* parse command string */
char *label; /* unique name of command */
enum dev_style dev_style; /* device style */
int s; /* status variable */
int len; /* length of string */
int r;
endpoint_t ep; /* new endpoint no. */
/* This call requires special privileges. */
if (!caller_is_root(m_ptr->m_source)) return(EPERM);
/* See if there is a free entry in the table with system processes. */
for (slot_nr = 0; slot_nr < NR_SYS_PROCS; slot_nr++) {
rp = &rproc[slot_nr]; /* get pointer to slot */
if (! rp->r_flags & RS_IN_USE) /* check if available */
break;
}
/* Obtain command name and parameters. This is a space-separated string
* that looks like "/sbin/service arg1 arg2 ...". Arguments are optional.
*/
if (m_ptr->RS_CMD_LEN > MAX_COMMAND_LEN) return(E2BIG);
if (OK!=(s=sys_datacopy(m_ptr->m_source, (vir_bytes) m_ptr->RS_CMD_ADDR,
SELF, (vir_bytes) rp->r_cmd, m_ptr->RS_CMD_LEN))) return(s);
rp->r_cmd[m_ptr->RS_CMD_LEN] = '\0'; /* ensure it is terminated */
if (rp->r_cmd[0] != '/') return(EINVAL); /* insist on absolute path */
rp->r_script[0]= '\0';
/* Build argument vector to be passed to execute call. The format of the
* arguments vector is: path, arguments, NULL.
*/
arg_count = 0; /* initialize arg count */
rp->r_argv[arg_count++] = rp->r_cmd; /* start with path */
cmd_ptr = rp->r_cmd; /* do some parsing */
while(*cmd_ptr != '\0') { /* stop at end of string */
if (*cmd_ptr == ' ') { /* next argument */
*cmd_ptr = '\0'; /* terminate previous */
while (*++cmd_ptr == ' ') ; /* skip spaces */
if (*cmd_ptr == '\0') break; /* no arg following */
if (arg_count>MAX_NR_ARGS+1) break; /* arg vector full */
rp->r_argv[arg_count++] = cmd_ptr; /* add to arg vector */
}
cmd_ptr ++; /* continue parsing */
}
rp->r_argv[arg_count] = NULL; /* end with NULL pointer */
rp->r_argc = arg_count;
/* Default label for the driver */
label= strrchr(rp->r_argv[0], '/');
if (label)
label++;
else
label= rp->r_argv[0];
len= strlen(label);
if (len > MAX_LABEL_LEN-1)
len= MAX_LABEL_LEN-1; /* truncate name */
memcpy(rp->r_label, label, len);
rp->r_label[len]= '\0';
if(rs_verbose) printf("RS: do_up: using label '%s'\n", rp->r_label);
rp->r_uid= 0;
rp->r_nice= 0;
rp->r_sys_flags = DSRV_SF;
rp->r_exec= NULL;
if (do_copy)
{
s= read_exec(rp);
if (s != OK)
return s;
rp->r_sys_flags |= SF_USE_COPY;
}
/* Initialize some fields. */
rp->r_period = m_ptr->RS_PERIOD;
rp->r_dev_nr = m_ptr->RS_DEV_MAJOR;
rp->r_dev_style = STYLE_DEV;
rp->r_restarts = -1; /* will be incremented */
rp->r_set_resources= 0; /* old style */
/* All information was gathered. Now try to start the system service. */
r = start_service(rp, flags, &ep);
m_ptr->RS_ENDPOINT = ep;
return r;
}
/*===========================================================================*
* do_start *
*===========================================================================*/
PUBLIC int do_start(m_ptr)
PUBLIC int do_up(m_ptr)
message *m_ptr; /* request message pointer */
{
/* A request was made to start a new system service.
@ -271,7 +165,7 @@ message *m_ptr; /* request message pointer */
}
if (slot_nr >= NR_SYS_PROCS)
{
printf("rs`do_start: driver table full\n");
printf("RS: do_up: system process table full\n");
return ENOMEM;
}
@ -310,15 +204,15 @@ message *m_ptr; /* request message pointer */
rp->r_argc = arg_count;
if(rs_start.rss_label.l_len > 0) {
/* RS_START caller has supplied a custom label for this driver. */
/* RS_UP caller has supplied a custom label for this service. */
int s = copy_label(m_ptr->m_source, &rs_start.rss_label,
rp->r_label, sizeof(rp->r_label));
if(s != OK)
return s;
if(rs_verbose)
printf("RS: do_start: using label (custom) '%s'\n", rp->r_label);
printf("RS: do_up: using label (custom) '%s'\n", rp->r_label);
} else {
/* Default label for the driver. */
/* Default label for the service. */
label= strrchr(rp->r_argv[0], '/');
if (label)
label++;
@ -330,7 +224,7 @@ message *m_ptr; /* request message pointer */
memcpy(rp->r_label, label, len);
rp->r_label[len]= '\0';
if(rs_verbose)
printf("RS: do_start: using label (from binary %s) '%s'\n",
printf("RS: do_up: using label (from binary %s) '%s'\n",
rp->r_argv[0], rp->r_label);
}
@ -338,7 +232,7 @@ message *m_ptr; /* request message pointer */
int i, s;
if (rs_start.rss_nr_control > RSS_NR_CONTROL)
{
printf("RS: do_start: too many control labels\n");
printf("RS: do_up: too many control labels\n");
return EINVAL;
}
for (i=0; i<rs_start.rss_nr_control; i++) {
@ -350,7 +244,7 @@ message *m_ptr; /* request message pointer */
rp->r_nr_control = rs_start.rss_nr_control;
if (rs_verbose) {
printf("RS: do_start: control labels:");
printf("RS: do_up: control labels:");
for (i=0; i<rp->r_nr_control; i++)
printf(" %s", rp->r_control[i]);
printf("\n");
@ -443,7 +337,7 @@ message *m_ptr; /* request message pointer */
/* Copy granted resources */
if (rs_start.rss_nr_irq > NR_IRQ)
{
printf("RS: do_start: too many IRQs requested\n");
printf("RS: do_up: too many IRQs requested\n");
return EINVAL;
}
rp->r_priv.s_nr_irq= rs_start.rss_nr_irq;
@ -451,12 +345,12 @@ message *m_ptr; /* request message pointer */
{
rp->r_priv.s_irq_tab[i]= rs_start.rss_irq[i];
if(rs_verbose)
printf("RS: do_start: IRQ %d\n", rp->r_priv.s_irq_tab[i]);
printf("RS: do_up: IRQ %d\n", rp->r_priv.s_irq_tab[i]);
}
if (rs_start.rss_nr_io > NR_IO_RANGE)
{
printf("RS: do_start: too many I/O ranges requested\n");
printf("RS: do_up: too many I/O ranges requested\n");
return EINVAL;
}
rp->r_priv.s_nr_io_range= rs_start.rss_nr_io;
@ -466,14 +360,14 @@ message *m_ptr; /* request message pointer */
rp->r_priv.s_io_tab[i].ior_limit=
rs_start.rss_io[i].base+rs_start.rss_io[i].len-1;
if(rs_verbose)
printf("RS: do_start: I/O [%x..%x]\n",
printf("RS: do_up: I/O [%x..%x]\n",
rp->r_priv.s_io_tab[i].ior_base,
rp->r_priv.s_io_tab[i].ior_limit);
}
if (rs_start.rss_nr_pci_id > RSS_NR_PCI_ID)
{
printf("RS: do_start: too many PCI device IDs\n");
printf("RS: do_up: too many PCI device IDs\n");
return EINVAL;
}
rp->r_nr_pci_id= rs_start.rss_nr_pci_id;
@ -482,12 +376,12 @@ message *m_ptr; /* request message pointer */
rp->r_pci_id[i].vid= rs_start.rss_pci_id[i].vid;
rp->r_pci_id[i].did= rs_start.rss_pci_id[i].did;
if(rs_verbose)
printf("RS: do_start: PCI %04x/%04x\n",
printf("RS: do_up: PCI %04x/%04x\n",
rp->r_pci_id[i].vid, rp->r_pci_id[i].did);
}
if (rs_start.rss_nr_pci_class > RSS_NR_PCI_CLASS)
{
printf("RS: do_start: too many PCI class IDs\n");
printf("RS: do_up: too many PCI class IDs\n");
return EINVAL;
}
rp->r_nr_pci_class= rs_start.rss_nr_pci_class;
@ -496,7 +390,7 @@ message *m_ptr; /* request message pointer */
rp->r_pci_class[i].class= rs_start.rss_pci_class[i].class;
rp->r_pci_class[i].mask= rs_start.rss_pci_class[i].mask;
if(rs_verbose)
printf("RS: do_start: PCI class %06x mask %06x\n",
printf("RS: do_up: PCI class %06x mask %06x\n",
rp->r_pci_class[i].class, rp->r_pci_class[i].mask);
}
@ -510,7 +404,7 @@ message *m_ptr; /* request message pointer */
else
{
printf(
"RS: do_start: internal inconsistency: bad size of r_call_mask\n");
"RS: do_up: internal inconsistency: bad size of r_call_mask\n");
memset(rp->r_call_mask, '\0', sizeof(rp->r_call_mask));
}
@ -519,9 +413,8 @@ message *m_ptr; /* request message pointer */
rp->r_dev_nr = rs_start.rss_major;
rp->r_dev_style = STYLE_DEV;
rp->r_restarts = -1; /* will be incremented */
rp->r_set_resources= 1; /* new style, enforce
* I/O resources
*/
rp->r_set_resources= 1; /* set resources */
if (sizeof(rp->r_vm) == sizeof(rs_start.rss_vm) &&
sizeof(rp->r_vm[0]) == sizeof(rs_start.rss_vm[0]))
{
@ -529,7 +422,7 @@ message *m_ptr; /* request message pointer */
}
else
{
printf("RS: do_start: internal inconsistency: bad size of r_vm\n");
printf("RS: do_up: internal inconsistency: bad size of r_vm\n");
memset(rp->r_vm, '\0', sizeof(rp->r_vm));
}
@ -767,7 +660,10 @@ PUBLIC void do_exit(message *m_ptr)
rproc_ptr[proc] = NULL; /* invalidate */
rp->r_pid= -1;
pci_del_acl(rp->r_proc_nr_e); /* Ignore errors */
/* If PCI properties are set, inform the PCI driver. */
if(rp->r_nr_pci_id || rp->r_nr_pci_class) {
pci_del_acl(rp->r_proc_nr_e);
}
if ((rp->r_flags & RS_EXITING) || shutting_down) {
/* No reply sent to RS_DOWN yet. */
@ -883,7 +779,7 @@ message *m_ptr;
else if (rp->r_period > 0) {
/* Check if an answer to a status request is still pending. If
* the driver didn't respond within time, kill it to simulate
* the service didn't respond within time, kill it to simulate
* a crash. The failure will be detected and the service will
* be restarted automatically.
*/
@ -935,7 +831,6 @@ endpoint_t *endpoint;
pid_t child_pid; /* child's process id */
char *file_only;
int s, use_copy, slot_nr;
struct priv *privp;
bitchunk_t *vm_mask;
message m;
char * null_env = NULL;
@ -1035,36 +930,25 @@ endpoint_t *endpoint;
}
}
privp= NULL;
vm_mask = NULL;
/* Set resources when asked to. */
if (rp->r_set_resources)
{
/* Initialize privilege structure. */
init_privs(rp, &rp->r_priv);
privp= &rp->r_priv;
/* Inform the PCI server about the driver */
init_pci(rp, child_proc_nr_e);
/* Tell VM about allowed calls. */
vm_mask = &rp->r_vm[0];
if ((s = vm_set_priv(child_proc_nr_e, vm_mask)) < 0) {
report("RS", "vm_set_priv call failed", s);
kill(child_pid, SIGKILL);
rp->r_flags |= RS_EXITING;
return (s);
}
}
/* Tell VM about allowed calls, before actually letting the process run. */
if ((s = vm_set_priv(child_proc_nr_e, vm_mask)) < 0) {
report("RS", "vm_set_priv call failed", s);
kill(child_pid, SIGKILL);
rp->r_flags |= RS_EXITING;
return (s);
}
/* Set the privilege structure for the child process.
* That will also cause the child process to start running.
* This call should succeed: we tested number in use above.
*/
if ((s = set_privs(child_proc_nr_e, privp, SYS_PRIV_SET_SYS)) != OK) {
report("RS","set_privs failed", s);
kill(child_pid, SIGKILL); /* kill driver */
rp->r_flags |= RS_EXITING; /* expect exit */
return(s); /* return error */
/* If PCI properties are set, inform the PCI driver about the new service. */
if(rp->r_nr_pci_id || rp->r_nr_pci_class) {
init_pci(rp, child_proc_nr_e);
}
/* The purpose of non-blocking forks is to avoid involving VFS in the forking
@ -1089,14 +973,20 @@ endpoint_t *endpoint;
if ((s=mapdriver5(rp->r_label, strlen(rp->r_label),
rp->r_dev_nr, rp->r_dev_style, !!use_copy /* force */)) < 0) {
report("RS", "couldn't map driver (continuing)", errno);
#if 0
kill(child_pid, SIGKILL); /* kill driver */
rp->r_flags |= RS_EXITING; /* expect exit */
return(s); /* return error */
#endif
}
}
/* Set the privilege structure for the child process.
* That will also cause the child process to start running.
* This call should succeed: we tested number in use above.
*/
if ((s = set_privs(child_proc_nr_e, &rp->r_priv, SYS_PRIV_SET_SYS)) != OK) {
report("RS","set_privs failed", s);
kill(child_pid, SIGKILL); /* kill the service */
rp->r_flags |= RS_EXITING; /* expect exit */
return(s); /* return error */
}
if(rs_verbose)
printf("RS: started '%s', major %d, pid %d, endpoint %d, proc %d\n",
rp->r_cmd, rp->r_dev_nr, child_pid,
@ -1555,7 +1445,7 @@ PRIVATE void init_pci(rp, endpoint)
struct rproc *rp;
int endpoint;
{
/* Tell the PCI driver about the new driver */
/* Inform the PCI driver about the new service. */
size_t len;
int i, r;
struct rs_pci rs_pci;

3
servers/rs/proto.h
View File

@ -11,8 +11,7 @@ _PROTOTYPE( int dev_execve, (int proc_e,
_PROTOTYPE( int main, (void));
/* manager.c */
_PROTOTYPE( int do_up, (message *m, int do_copy, int flags));
_PROTOTYPE( int do_start, (message *m));
_PROTOTYPE( int do_up, (message *m));
_PROTOTYPE( int do_down, (message *m));
_PROTOTYPE( int do_refresh, (message *m));
_PROTOTYPE( int do_restart, (message *m));

79
servers/rs/service.c
View File

@ -35,9 +35,7 @@ PRIVATE char *known_requests[] = {
"down",
"refresh",
"restart",
"-unused",
"shutdown",
"upcopy", /* fill for RS_UP_COPY */
"catch for illegal requests"
};
#define ILLEGAL_REQUEST sizeof(known_requests)/sizeof(char *)
@ -47,7 +45,7 @@ PRIVATE char *known_requests[] = {
#define RUN_CMD "run"
#define RUN_SCRIPT "/etc/rs.single" /* Default script for 'run' */
#define PATH_CONFIG _PATH_DRIVERS_CONF /* Default config file */
#define PATH_CONFIG _PATH_SYSTEM_CONF /* Default config file */
/* Define names for arguments provided to this utility. The first few
* arguments are required and have a known index. Thereafter, some optional
@ -66,7 +64,7 @@ PRIVATE char *known_requests[] = {
#define ARG_DEV "-dev" /* major device number for drivers */
#define ARG_PERIOD "-period" /* heartbeat period in ticks */
#define ARG_SCRIPT "-script" /* name of the script to restart a
* driver
* system service
*/
#define ARG_LABELNAME "-label" /* custom label name */
#define ARG_CONFIG "-config" /* name of the file with the resource
@ -74,7 +72,7 @@ PRIVATE char *known_requests[] = {
*/
#define ARG_PRINTEP "-printep" /* print endpoint number after start */
#define DRIVER_LOGIN "driver" /* Passwd file entry for drivers */
#define SERVICE_LOGIN "service" /* passwd file entry for services */
#define MAX_CLASS_RECURS 100 /* Max nesting level for classes */
@ -192,8 +190,6 @@ PRIVATE int parse_arguments(int argc, char **argv)
}
if (req_nr == RS_UP) {
req_nr= RS_START;
rs_start.rss_flags= RF_IPC_VALID;
if (c_flag)
rs_start.rss_flags |= RF_COPY;
@ -205,14 +201,8 @@ PRIVATE int parse_arguments(int argc, char **argv)
{
/* Set default recovery script for RUN */
req_script = RUN_SCRIPT;
req_nr = RS_START;
}
#if 0
if (req_nr == RS_UP && c_flag)
req_nr= RS_UP_COPY;
#endif
/* Verify argument count. */
if (argc - 1 < optind+ARG_PATH) {
print_usage(argv[ARG_NAME], "action requires a binary to start");
@ -276,15 +266,12 @@ PRIVATE int parse_arguments(int argc, char **argv)
}
else if (strcmp(argv[i], ARG_SCRIPT)==0) {
req_script = argv[i+1];
req_nr = RS_START;
}
else if (strcmp(argv[i], ARG_LABELNAME)==0) {
req_label = argv[i+1];
req_nr = RS_START;
}
else if (strcmp(argv[i], ARG_CONFIG)==0) {
req_config = argv[i+1];
req_nr = RS_START;
}
else if (strcmp(argv[i], ARG_PRINTEP)==0) {
req_printep = 1;
@ -325,7 +312,7 @@ PRIVATE void fatal(char *fmt, ...)
exit(1);
}
#define KW_DRIVER "driver"
#define KW_SERVICE "service"
#define KW_UID "uid"
#define KW_NICE "nice"
#define KW_IRQ "irq"
@ -338,7 +325,7 @@ PRIVATE void fatal(char *fmt, ...)
#define KW_VM "vm"
#define KW_CONTROL "control"
FORWARD void do_driver(config_t *cpe, config_t *config);
FORWARD void do_service(config_t *cpe, config_t *config);
PRIVATE void do_class(config_t *cpe, config_t *config)
{
@ -382,10 +369,10 @@ PRIVATE void do_class(config_t *cpe, config_t *config)
cp1->file, cp1->line);
}
/* At this place we expect the word 'driver' */
if (strcmp(cp1->word, KW_DRIVER) != 0)
/* At this place we expect the word KW_SERVICE */
if (strcmp(cp1->word, KW_SERVICE) != 0)
fatal("do_class: exected word '%S' at %s:%d",
KW_DRIVER, cp1->file, cp1->line);
KW_SERVICE, cp1->file, cp1->line);
cp1= cp1->next;
if ((cp1->flags & CFG_STRING) ||
@ -395,7 +382,7 @@ PRIVATE void do_class(config_t *cpe, config_t *config)
cp1->file, cp1->line);
}
/* At this place we expect the name of the driver */
/* At this place we expect the name of the service */
if (strcmp(cp1->word, cpe->word) == 0)
break;
}
@ -405,7 +392,7 @@ PRIVATE void do_class(config_t *cpe, config_t *config)
"do_class: no entry found for class '%s' at %s:%d",
cpe->word, cpe->file, cpe->line);
}
do_driver(cp1->next, config);
do_service(cp1->next, config);
}
class_recurs--;
@ -887,7 +874,7 @@ PRIVATE void do_control(config_t *cpe)
}
}
PRIVATE void do_driver(config_t *cpe, config_t *config)
PRIVATE void do_service(config_t *cpe, config_t *config)
{
config_t *cp;
@ -896,13 +883,13 @@ PRIVATE void do_driver(config_t *cpe, config_t *config)
*/
if (!(cpe->flags & CFG_SUBLIST))
{
fatal("do_driver: expected list at %s:%d",
fatal("do_service: expected list at %s:%d",
cpe->file, cpe->line);
}
if (cpe->next != NULL)
{
cpe= cpe->next;
fatal("do_driver: expected end of list at %s:%d",
fatal("do_service: expected end of list at %s:%d",
cpe->file, cpe->line);
}
cpe= cpe->list;
@ -912,13 +899,13 @@ PRIVATE void do_driver(config_t *cpe, config_t *config)
{
if (!(cp->flags & CFG_SUBLIST))
{
fatal("do_driver: expected list at %s:%d",
fatal("do_service: expected list at %s:%d",
cp->file, cp->line);
}
cpe= cp->list;
if ((cpe->flags & CFG_STRING) || (cpe->flags & CFG_SUBLIST))
{
fatal("do_driver: expected word at %s:%d",
fatal("do_service: expected word at %s:%d",
cpe->file, cpe->line);
}
@ -987,7 +974,7 @@ PRIVATE void do_config(char *label, char *filename)
exit(1);
}
/* Find an entry for our driver */
/* Find an entry for our service */
for (cp= config; cp; cp= cp->next)
{
if (!(cp->flags & CFG_SUBLIST))
@ -1002,10 +989,10 @@ PRIVATE void do_config(char *label, char *filename)
cpe->file, cpe->line);
}
/* At this place we expect the word 'driver' */
if (strcmp(cpe->word, KW_DRIVER) != 0)
/* At this place we expect the word KW_SERVICE */
if (strcmp(cpe->word, KW_SERVICE) != 0)
fatal("do_config: exected word '%S' at %s:%d",
KW_DRIVER, cpe->file, cpe->line);
KW_SERVICE, cpe->file, cpe->line);
cpe= cpe->next;
if ((cpe->flags & CFG_STRING) || (cpe->flags & CFG_SUBLIST))
@ -1014,20 +1001,20 @@ PRIVATE void do_config(char *label, char *filename)
cpe->file, cpe->line);
}
/* At this place we expect the name of the driver */
/* At this place we expect the name of the service. */
if (strcmp(cpe->word, label) == 0)
break;
}
if (cp == NULL)
{
fprintf(stderr, "service: driver '%s' not found in config\n",
fprintf(stderr, "service: service '%s' not found in config\n",
label);
exit(1);
}
cpe= cpe->next;
do_driver(cpe, config);
do_service(cpe, config);
}
/* Main program.
@ -1060,22 +1047,6 @@ PUBLIC int main(int argc, char **argv)
*/
switch(request) {
case RS_UP:
case RS_UP_COPY:
/* Build space-separated command string to be passed to RS server. */
strcpy(command, req_path);
command[strlen(req_path)] = ' ';
strcpy(command+strlen(req_path)+1, req_args);
/* Build request message and send the request. */
m.RS_CMD_ADDR = command;
m.RS_CMD_LEN = strlen(command);
m.RS_DEV_MAJOR = req_major;
m.RS_PERIOD = req_period;
if (OK != (s=_taskcall(RS_PROC_NR, request, &m)))
failure(-s);
result = m.m_type;
break;
case RS_START:
/* Build space-separated command string to be passed to RS server. */
strcpy(command, req_path);
command[strlen(req_path)] = ' ';
@ -1098,12 +1069,12 @@ PUBLIC int main(int argc, char **argv)
else
rs_start.rss_scriptlen= 0;
pw= getpwnam(DRIVER_LOGIN);
pw= getpwnam(SERVICE_LOGIN);
if (pw == NULL)
fatal("no passwd file entry for '%s'", DRIVER_LOGIN);
fatal("no passwd file entry for '%s'", SERVICE_LOGIN);
rs_start.rss_uid= pw->pw_uid;
/* The name of the driver */
/* The name of the system service. */
(label= strrchr(req_path, '/')) ? label++ : (label= req_path);
if (req_config) {

2
servers/rs/type.h
View File

@ -50,7 +50,7 @@ struct rproc {
char *r_exec; /* Executable image */
size_t r_exec_len; /* Length of image */
char r_label[MAX_LABEL_LEN]; /* unique name of this driver */
char r_label[MAX_LABEL_LEN]; /* unique name of this service */
char r_cmd[MAX_COMMAND_LEN]; /* raw command plus arguments */
char r_script[MAX_SCRIPT_LEN]; /* name of the restart script executable */
char *r_argv[MAX_NR_ARGS+2]; /* parsed arguments vector */