/*===========================================================================*
* get_work *
*===========================================================================*/
static void get_work(
message *m_ptr /* message buffer */
)
{
int status = sef_receive_status(ANY, m_ptr, &ipc_status); /* blocks until message arrives */
if (OK != status)
panic("failed to receive message!: %d", status);
who_e = m_ptr->m_source; /* message arrived! set sender */
callnr = m_ptr->m_type; /* set function call number */
}
/*===========================================================================*
* chardriver_task *
*===========================================================================*/
void chardriver_task(struct chardriver *cdp, int driver_type)
{
/* Main program of any device driver task. */
int r, ipc_status;
message mess;
running = TRUE;
/* Here is the main loop of the disk task. It waits for a message, carries
* it out, and sends a reply.
*/
while (running) {
if ((r = sef_receive_status(ANY, &mess, &ipc_status)) != OK)
panic("driver_receive failed: %d", r);
chardriver_process(cdp, driver_type, &mess, ipc_status);
}
}
int main(__unused int argc, __unused char ** argv)
{
sef_local_startup();
for(;;) {
int err, ipc_status;
message m;
netif_poll_lo();
mq_process();
if ((err = sef_receive_status(ANY, &m, &ipc_status)) != OK) {
printf("LWIP : sef_receive_status errr %d\n", err);
continue;
}
if (m.m_source == VFS_PROC_NR)
socket_request(&m, ipc_status);
else if (is_ipc_notify(ipc_status)) {
switch (m.m_source) {
case CLOCK:
expire_timers(m.m_notify.timestamp);
break;
case DS_PROC_NR:
ds_event();
break;
case PM_PROC_NR:
panic("LWIP : unhandled event from PM");
break;
default:
printf("LWIP : unexpected notify from %d\n",
m.m_source);
continue;
}
} else
/* all other request can be from drivers only */
driver_request(&m);
}
return 0;
}
int
main(int argc, char *argv[])
{
int r, i;
struct tm t;
endpoint_t user, caller;
message m;
int ipc_status, reply_status;
env_setargs(argc, argv);
r = i2cdriver_env_parse(&bus, &addresses[0], valid_addrs);
if (r < 0) {
log_warn(&log, "Expecting -args 'bus=X address=0xYY'\n");
log_warn(&log, "Example -args 'bus=1 address=0x48'\n");
return EXIT_FAILURE;
} else if (r > 0) {
log_warn(&log,
"Invalid slave address for device, expecting 0x48\n");
return EXIT_FAILURE;
}
sef_local_startup();
while (TRUE) {
/* Receive Message */
r = sef_receive_status(ANY, &m, &ipc_status);
if (r != OK) {
log_warn(&log, "sef_receive_status() failed\n");
continue;
}
if (is_ipc_notify(ipc_status)) {
if (m.m_source == DS_PROC_NR) {
for (i = 0; i < NADDRESSES; i++) {
/* changed state, update endpoint */
i2cdriver_handle_bus_update
(&bus_endpoint, bus, addresses[i]);
}
}
/* Do not reply to notifications. */
continue;
}
caller = m.m_source;
log_debug(&log, "Got message 0x%x from 0x%x\n", m.m_type,
caller);
switch (m.m_type) {
case RTCDEV_GET_TIME_G:
/* Any user can read the time */
reply_status = rtc_get_time(&t, m.RTCDEV_FLAGS);
if (reply_status != OK) {
break;
}
/* write results back to calling process */
reply_status =
store_t(caller, (cp_grant_id_t) m.RTCDEV_GRANT,
&t);
break;
case RTCDEV_SET_TIME_G:
/* Only super user is allowed to set the time */
if (getnuid(caller) == SUPER_USER) {
/* read time from calling process */
reply_status =
fetch_t(caller,
(cp_grant_id_t) m.RTCDEV_GRANT, &t);
if (reply_status != OK) {
break;
}
reply_status =
rtc_set_time(&t, m.RTCDEV_FLAGS);
} else {
reply_status = EPERM;
}
break;
case RTCDEV_PWR_OFF:
reply_status = ENOSYS;
break;
default:
/* Unrecognized call */
reply_status = EINVAL;
break;
}
/* Send Reply */
m.m_type = RTCDEV_REPLY;
m.RTCDEV_STATUS = reply_status;
log_debug(&log, "Sending Reply");
r = sendnb(caller, &m);
if (r != OK) {
log_warn(&log, "sendnb() failed\n");
continue;
}
}
rtc_exit();
return 0;
}
/*===========================================================================*
* main *
*===========================================================================*/
PUBLIC int main(void)
{
/* Main routine of the scheduler. */
message m_in; /* the incoming message itself is kept here. */
int call_nr; /* system call number */
int who_e; /* caller's endpoint */
int result; /* result to system call */
int rv;
/* SEF local startup. */
sef_local_startup();
/* Initialize scheduling timers, used for running balance_queues */
init_scheduling();
/* my Hello code*/
printf("\n%s\n", " =========================================================");
printf("%s\n", " Hello, Minix is now using a lottery scheduler.");
printf("%s\n\n", " =========================================================");
/* This is SCHED's main loop - get work and do it, forever and forever. */
while (TRUE) {
int ipc_status;
/* Wait for the next message and extract useful information from it. */
if (sef_receive_status(ANY, &m_in, &ipc_status) != OK)
panic("SCHED sef_receive error");
who_e = m_in.m_source; /* who sent the message */
call_nr = m_in.m_type; /* system call number */
/* Check for system notifications first. Special cases. */
if (is_ipc_notify(ipc_status)) {
switch(who_e) {
case CLOCK:
expire_timers(m_in.NOTIFY_TIMESTAMP);
continue; /* don't reply */
default :
result = ENOSYS;
}
goto sendreply;
}
switch(call_nr) {
case SCHEDULING_INHERIT:
case SCHEDULING_START:
result = do_start_scheduling(&m_in);
break;
case SCHEDULING_STOP:
result = do_stop_scheduling(&m_in);
break;
case SCHEDULING_SET_NICE:
result = do_nice(&m_in);
break;
case SCHEDULING_NO_QUANTUM:
/* This message was sent from the kernel, don't reply */
if (IPC_STATUS_FLAGS_TEST(ipc_status,
IPC_FLG_MSG_FROM_KERNEL)) {
if ((rv = do_noquantum(&m_in)) != (OK)) {
printf("SCHED: Warning, do_noquantum "
"failed with %d\n", rv);
}
continue; /* Don't reply */
}
else {
printf("SCHED: process %d faked "
"SCHEDULING_NO_QUANTUM message!\n",
who_e);
result = EPERM;
}
break;
default:
result = no_sys(who_e, call_nr);
}
sendreply:
/* Send reply. */
if (result != SUSPEND) {
m_in.m_type = result; /* build reply message */
reply(who_e, &m_in); /* send it away */
}
}
return(OK);
}
/*===========================================================================*
* main *
*===========================================================================*/
int main()
{
/* Main routine of the process manager. */
int result;
/* SEF local startup. */
sef_local_startup();
// Initialization of the semarray (of pointers) to NULL
register struct mproc *rmp;
// rmp is the pointer to the struct of the process table
for (rmp = &mproc[0]; rmp < &mproc[NR_PROCS]; rmp++)
{
for(int i=0; i<12; i++) // for all 12 semaphores
{
rmp->semarray[i]=NULL;
}
}
// end of Initialization
/* This is PM's main loop- get work and do it, forever and forever. */
while (TRUE) {
int ipc_status;
/* Wait for the next message and extract useful information from it. */
if (sef_receive_status(ANY, &m_in, &ipc_status) != OK)
panic("PM sef_receive_status error");
who_e = m_in.m_source; /* who sent the message */
if(pm_isokendpt(who_e, &who_p) != OK)
panic("PM got message from invalid endpoint: %d", who_e);
call_nr = m_in.m_type; /* system call number */
/* Process slot of caller. Misuse PM's own process slot if the kernel is
* calling. This can happen in case of synchronous alarms (CLOCK) or or
* event like pending kernel signals (SYSTEM).
*/
mp = &mproc[who_p < 0 ? PM_PROC_NR : who_p];
if(who_p >= 0 && mp->mp_endpoint != who_e) {
panic("PM endpoint number out of sync with source: %d",
mp->mp_endpoint);
}
/* Drop delayed calls from exiting processes. */
if (mp->mp_flags & EXITING)
continue;
/* Check for system notifications first. Special cases. */
if (is_ipc_notify(ipc_status)) {
if (who_p == CLOCK) {
expire_timers(m_in.NOTIFY_TIMESTAMP);
}
/* done, send reply and continue */
sendreply();
continue;
}
switch(call_nr)
{
case PM_SETUID_REPLY:
case PM_SETGID_REPLY:
case PM_SETSID_REPLY:
case PM_EXEC_REPLY:
case PM_EXIT_REPLY:
case PM_CORE_REPLY:
case PM_FORK_REPLY:
case PM_SRV_FORK_REPLY:
case PM_UNPAUSE_REPLY:
case PM_REBOOT_REPLY:
case PM_SETGROUPS_REPLY:
if (who_e == VFS_PROC_NR)
{
handle_vfs_reply();
result= SUSPEND; /* don't reply */
}
else
result= ENOSYS;
break;
case COMMON_GETSYSINFO:
result = do_getsysinfo();
break;
default:
/* Else, if the system call number is valid, perform the
* call.
*/
if ((unsigned) call_nr >= NCALLS) {
result = ENOSYS;
} else {
#if ENABLE_SYSCALL_STATS
calls_stats[call_nr]++;
#endif
result = (*call_vec[call_nr])();
}
break;
}
/* Send reply. */
if (result != SUSPEND) setreply(who_p, result);
sendreply();
}
return(OK);
}
/*===========================================================================*
* main *
*===========================================================================*/
int main(void)
{
message msg;
int result, who_e, rcv_sts;
int caller_slot;
/* Initialize system so that all processes are runnable */
init_vm();
/* Register init callbacks. */
sef_setcb_init_restart(sef_cb_init_fail);
sef_setcb_signal_handler(sef_cb_signal_handler);
/* Let SEF perform startup. */
sef_startup();
SANITYCHECK(SCL_TOP);
/* This is VM's main loop. */
while (TRUE) {
int r, c;
u32_t type, param;
SANITYCHECK(SCL_TOP);
if(missing_spares > 0) {
alloc_cycle(); /* mem alloc code wants to be called */
}
if ((r=sef_receive_status(ANY, &msg, &rcv_sts)) != OK)
panic("sef_receive_status() error: %d", r);
if (is_ipc_notify(rcv_sts)) {
/* Unexpected notify(). */
printf("VM: ignoring notify() from %d\n", msg.m_source);
continue;
}
who_e = msg.m_source;
if(vm_isokendpt(who_e, &caller_slot) != OK)
panic("invalid caller %d", who_e);
type = param = msg.m_type;
type &= 0x0000FFFF;
param >>= 16;
c = CALLNUMBER(type);
result = ENOSYS; /* Out of range or restricted calls return this. */
if(msg.m_type == RS_INIT && msg.m_source == RS_PROC_NR) {
result = do_rs_init(&msg);
} else if (msg.m_type == VM_PAGEFAULT) {
if (!IPC_STATUS_FLAGS_TEST(rcv_sts, IPC_FLG_MSG_FROM_KERNEL)) {
printf("VM: process %d faked VM_PAGEFAULT "
"message!\n", msg.m_source);
}
do_pagefaults(&msg);
/*
* do not reply to this call, the caller is unblocked by
* a sys_vmctl() call in do_pagefaults if success. VM panics
* otherwise
*/
continue;
} else if(c < 0 || !vm_calls[c].vmc_func) {
/* out of range or missing callnr */
} else {
if (acl_check(&vmproc[caller_slot], c) != OK) {
printf("VM: unauthorized %s by %d\n",
vm_calls[c].vmc_name, who_e);
} else {
SANITYCHECK(SCL_FUNCTIONS);
result = vm_calls[c].vmc_func(&msg);
SANITYCHECK(SCL_FUNCTIONS);
}
}
/* Send reply message, unless the return code is SUSPEND,
* which is a pseudo-result suppressing the reply message.
*/
if(result != SUSPEND) {
msg.m_type = result;
if((r=send(who_e, &msg)) != OK) {
printf("VM: couldn't send %d to %d (err %d)\n",
msg.m_type, who_e, r);
panic("send() error");
}
}
}
return(OK);
}
/*===========================================================================*
* main *
*===========================================================================*/
int main()
{
/* Main routine of the process manager. */
unsigned int call_index;
int ipc_status, result;
/* SEF local startup. */
sef_local_startup();
/* This is PM's main loop- get work and do it, forever and forever. */
while (TRUE) {
/* Wait for the next message. */
if (sef_receive_status(ANY, &m_in, &ipc_status) != OK)
panic("PM sef_receive_status error");
/* Check for system notifications first. Special cases. */
if (is_ipc_notify(ipc_status)) {
if (_ENDPOINT_P(m_in.m_source) == CLOCK)
expire_timers(m_in.m_notify.timestamp);
/* done, continue */
continue;
}
/* Extract useful information from the message. */
who_e = m_in.m_source; /* who sent the message */
if (pm_isokendpt(who_e, &who_p) != OK)
panic("PM got message from invalid endpoint: %d", who_e);
mp = &mproc[who_p]; /* process slot of caller */
call_nr = m_in.m_type; /* system call number */
/* Drop delayed calls from exiting processes. */
if (mp->mp_flags & EXITING)
continue;
if (IS_VFS_PM_RS(call_nr) && who_e == VFS_PROC_NR) {
handle_vfs_reply();
result = SUSPEND; /* don't reply */
} else if (call_nr == PROC_EVENT_REPLY) {
result = do_proc_event_reply();
} else if (IS_PM_CALL(call_nr)) {
/* If the system call number is valid, perform the call. */
call_index = (unsigned int) (call_nr - PM_BASE);
if (call_index < NR_PM_CALLS && call_vec[call_index] != NULL) {
#if ENABLE_SYSCALL_STATS
calls_stats[call_index]++;
#endif
result = (*call_vec[call_index])();
} else
result = ENOSYS;
} else
result = ENOSYS;
/* Send reply. */
if (result != SUSPEND) reply(who_p, result);
}
return(OK);
}
int
main(int argc, char *argv[])
{
int r;
endpoint_t user, caller;
message m;
int ipc_status;
env_setargs(argc, argv);
r = i2cdriver_env_parse(&bus, &address, valid_addrs);
if (r < 0) {
log_warn(&log, "Expecting -args 'bus=X address=0xYY'\n");
log_warn(&log, "Example -args 'bus=1 address=0x24'\n");
return EXIT_FAILURE;
} else if (r > 0) {
log_warn(&log,
"Invalid slave address for device, expecting 0x24\n");
return EXIT_FAILURE;
}
sef_local_startup();
while (TRUE) {
/* Receive Message */
r = sef_receive_status(ANY, &m, &ipc_status);
if (r != OK) {
log_warn(&log, "sef_receive_status() failed\n");
continue;
}
log_trace(&log, "Got a message 0x%x from 0x%x\n", m.m_type,
m.m_source);
if (is_ipc_notify(ipc_status)) {
switch (m.m_source) {
case DS_PROC_NR:
/* bus driver changed state, update endpoint */
i2cdriver_handle_bus_update(&bus_endpoint, bus,
address);
break;
case HARDWARE:
intr_handler();
break;
default:
break;
}
/* Do not reply to notifications. */
continue;
}
caller = m.m_source;
user = m.USER_ENDPT;
/*
* Handle Message
*
* So far this driver only deals with notifications
* so it always replies to non-notifications with EINVAL.
*/
/* Send Reply */
m.m_type = TASK_REPLY;
m.REP_ENDPT = user;
m.REP_STATUS = EINVAL;
r = sendnb(caller, &m);
if (r != OK) {
log_warn(&log, "sendnb() failed\n");
continue;
}
}
return 0;
}
static void dispatcher_thread(void *unused) {
/*
* Gets all messages and dispatches them.
*
* NOTE: this thread runs only when no other ddekit is
* ready. So please take care that youre threads
* leave some time for the others!
*/
message m;
int r;
int i;
int ipc_status;
_ddekit_thread_set_myprio(0);
for( ; ; ) {
/* Trigger a timer interrupt at each loop iteration */
_ddekit_timer_update();
/* Wait for messages */
if ((r = sef_receive_status(ANY, &m, &ipc_status)) != 0) {
ddekit_panic("ddekit", "sef_receive failed", r);
}
_ddekit_timer_interrupt();
_ddekit_thread_wakeup_sleeping();
if (is_notify(m.m_type)) {
switch (_ENDPOINT_P(m.m_source)) {
case HARDWARE:
for (i =0 ; i < 32 ; i++)
{
if(m.NOTIFY_ARG & (1 << i))
{
_ddekit_interrupt_trigger(i);
}
}
break;
case CLOCK:
_ddekit_timer_pending = 0;
break;
default:
ddekit_thread_schedule();
}
} else {
/*
* I don't know how to handle this msg,
* but maybe we have a msg queue which can
* handle this msg.
*/
ddekit_minix_queue_msg(&m, ipc_status);
}
}
}
int
main(int argc, char **argv)
{
int r;
endpoint_t caller;
struct tm t;
message m;
int ipc_status, reply_status;
env_setargs(argc, argv);
sef_local_startup();
while (TRUE) {
/* Receive Message */
r = sef_receive_status(ANY, &m, &ipc_status);
if (r != OK) {
log_warn(&log, "sef_receive_status() failed\n");
continue;
}
if (is_ipc_notify(ipc_status)) {
/* Do not reply to notifications. */
continue;
}
caller = m.m_source;
log_debug(&log, "Got message 0x%x from 0x%x\n", m.m_type,
caller);
switch (m.m_type) {
case RTCDEV_GET_TIME:
/* Any user can read the time */
reply_status = rtc.get_time(&t, m.m_lc_readclock_rtcdev.flags);
if (reply_status != OK) {
break;
}
/* write results back to calling process */
reply_status =
store_t(caller, m.m_lc_readclock_rtcdev.tm, &t);
break;
case RTCDEV_SET_TIME:
/* Only super user is allowed to set the time */
if (getnuid(caller) == SUPER_USER) {
/* read time from calling process */
reply_status =
fetch_t(caller, m.m_lc_readclock_rtcdev.tm,
&t);
if (reply_status != OK) {
break;
}
reply_status =
rtc.set_time(&t, m.m_lc_readclock_rtcdev.flags);
} else {
reply_status = EPERM;
}
break;
case RTCDEV_PWR_OFF:
/* Only PM is allowed to set the power off time */
if (caller == PM_PROC_NR) {
reply_status = rtc.pwr_off();
} else {
reply_status = EPERM;
}
break;
default:
/* Unrecognized call */
reply_status = EINVAL;
break;
}
/* Send Reply */
m.m_type = RTCDEV_REPLY;
m.m_readclock_lc_rtcdev.status = reply_status;
log_debug(&log, "Sending Reply");
r = ipc_sendnb(caller, &m);
if (r != OK) {
log_warn(&log, "ipc_sendnb() failed\n");
continue;
}
}
rtc.exit();
return 0;
}
PUBLIC int main(int argc, char *argv[])
{
mq_t *mq;
int ipc_status;
int r;
endpoint_t source;
int m_type;
/* SEF local startup. */
sef_local_startup();
while (TRUE)
{
#ifdef BUF_CONSISTENCY_CHECK
if (inet_buf_debug)
{
static int buf_debug_count= 0;
if (++buf_debug_count >= inet_buf_debug)
{
buf_debug_count= 0;
if (!bf_consistency_check())
break;
}
}
#endif
if (ev_head)
{
ev_process();
continue;
}
if (clck_call_expire)
{
clck_expire_timers();
continue;
}
mq= mq_get();
if (!mq)
ip_panic(("out of messages"));
r= sef_receive_status(ANY, &mq->mq_mess, &ipc_status);
if (r<0)
{
ip_panic(("unable to receive: %d", r));
}
reset_time();
source= mq->mq_mess.m_source;
m_type= mq->mq_mess.m_type;
if (source == VFS_PROC_NR)
{
sr_rec(mq);
}
else if (is_ipc_notify(ipc_status))
{
if (source == CLOCK)
{
clck_tick(&mq->mq_mess);
mq_free(mq);
}
else if (source == PM_PROC_NR)
{
/* signaled */
/* probably SIGTERM */
mq_free(mq);
}
else if (source == DS_PROC_NR)
{
/* DS notifies us of an event. */
ds_event();
mq_free(mq);
}
else
{
printf("inet: got unexpected notify from %d\n",
mq->mq_mess.m_source);
mq_free(mq);
}
}
else if (m_type == DL_CONF_REPLY || m_type == DL_TASK_REPLY ||
m_type == DL_STAT_REPLY)
{
eth_rec(&mq->mq_mess);
mq_free(mq);
}
else
{
printf("inet: got bad message type 0x%x from %d\n",
mq->mq_mess.m_type, mq->mq_mess.m_source);
mq_free(mq);
}
}
ip_panic(("task is not allowed to terminate"));
return 1;
}
/*===========================================================================*
* main *
*===========================================================================*/
PUBLIC int main()
{
/* Main routine of the process manager. */
int result;
/* SEF local startup. */
sef_local_startup();
sched_init(); /* initialize user-space scheduling */
/* This is PM's main loop- get work and do it, forever and forever. */
while (TRUE) {
int ipc_status;
/* Wait for the next message and extract useful information from it. */
if (sef_receive_status(ANY, &m_in, &ipc_status) != OK)
panic("PM sef_receive_status error");
who_e = m_in.m_source; /* who sent the message */
if(pm_isokendpt(who_e, &who_p) != OK)
panic("PM got message from invalid endpoint: %d", who_e);
call_nr = m_in.m_type; /* system call number */
/* Process slot of caller. Misuse PM's own process slot if the kernel is
* calling. This can happen in case of synchronous alarms (CLOCK) or or
* event like pending kernel signals (SYSTEM).
*/
mp = &mproc[who_p < 0 ? PM_PROC_NR : who_p];
if(who_p >= 0 && mp->mp_endpoint != who_e) {
panic("PM endpoint number out of sync with source: %d",
mp->mp_endpoint);
}
/* Drop delayed calls from exiting processes. */
if (mp->mp_flags & EXITING)
continue;
/* Check for system notifications first. Special cases. */
if (is_ipc_notify(ipc_status)) {
switch(who_p) {
case CLOCK:
pm_expire_timers(m_in.NOTIFY_TIMESTAMP);
result = SUSPEND; /* don't reply */
break;
default :
result = ENOSYS;
}
/* done, send reply and continue */
if (result != SUSPEND) setreply(who_p, result);
sendreply();
continue;
}
switch(call_nr)
{
case PM_SETUID_REPLY:
case PM_SETGID_REPLY:
case PM_SETSID_REPLY:
case PM_EXEC_REPLY:
case PM_EXIT_REPLY:
case PM_CORE_REPLY:
case PM_FORK_REPLY:
case PM_SRV_FORK_REPLY:
case PM_UNPAUSE_REPLY:
case PM_REBOOT_REPLY:
case PM_SETGROUPS_REPLY:
/*?????????????????????????????????????????????????????????????????????*/
/*?????????????????????????????????????????????????????????????????????*/
/* Chamando a funcao terminator() para todos os processos finalizados. */
if ( call_nr==PM_EXIT_REPLY ) terminator( _ENDPOINT_P(m_in.m1_i1));
/*?????????????????????????????????????????????????????????????????????*/
/*?????????????????????????????????????????????????????????????????????*/
if (who_e == FS_PROC_NR)
{
handle_fs_reply();
result= SUSPEND; /* don't reply */
}
else
result= ENOSYS;
break;
default:
/* Else, if the system call number is valid, perform the
* call.
*/
if ((unsigned) call_nr >= NCALLS) {
result = ENOSYS;
} else {
#if ENABLE_SYSCALL_STATS
calls_stats[call_nr]++;
#endif
result = (*call_vec[call_nr])();
}
break;
}
/* Send reply. */
if (result != SUSPEND) setreply(who_p, result);
sendreply();
}
return(OK);
}
/*===========================================================================*
* main *
*===========================================================================*/
PUBLIC int main(void)
{
message msg;
int result, who_e, rcv_sts;
int caller_slot;
struct vmproc *vmp_caller;
/* SEF local startup. */
sef_local_startup();
SANITYCHECK(SCL_TOP);
/* This is VM's main loop. */
while (TRUE) {
int r, c;
SANITYCHECK(SCL_TOP);
if(missing_spares > 0) {
pt_cycle(); /* pagetable code wants to be called */
}
if ((r=sef_receive_status(ANY, &msg, &rcv_sts)) != OK)
panic("sef_receive_status() error: %d", r);
if (is_ipc_notify(rcv_sts)) {
/* Unexpected notify(). */
printf("VM: ignoring notify() from %d\n", msg.m_source);
continue;
}
who_e = msg.m_source;
if(vm_isokendpt(who_e, &caller_slot) != OK)
panic("invalid caller", who_e);
vmp_caller = &vmproc[caller_slot];
c = CALLNUMBER(msg.m_type);
result = ENOSYS; /* Out of range or restricted calls return this. */
if (msg.m_type == VM_PAGEFAULT) {
if (!IPC_STATUS_FLAGS_TEST(rcv_sts, IPC_FLG_MSG_FROM_KERNEL)) {
printf("VM: process %d faked VM_PAGEFAULT "
"message!\n", msg.m_source);
}
do_pagefaults(&msg);
/*
* do not reply to this call, the caller is unblocked by
* a sys_vmctl() call in do_pagefaults if success. VM panics
* otherwise
*/
continue;
} else if(c < 0 || !vm_calls[c].vmc_func) {
/* out of range or missing callnr */
} else {
if (vm_acl_ok(who_e, c) != OK) {
printf("VM: unauthorized %s by %d\n",
vm_calls[c].vmc_name, who_e);
} else {
SANITYCHECK(SCL_FUNCTIONS);
result = vm_calls[c].vmc_func(&msg);
SANITYCHECK(SCL_FUNCTIONS);
}
}
/* Send reply message, unless the return code is SUSPEND,
* which is a pseudo-result suppressing the reply message.
*/
if(result != SUSPEND) {
msg.m_type = result;
if((r=send(who_e, &msg)) != OK) {
printf("VM: couldn't send %d to %d (err %d)\n",
msg.m_type, who_e, r);
panic("send() error");
}
}
}
return(OK);
}
