static void
services_changed(GVariant *params)
{
connman_service_t *prev = NULL, *cs;
GVariant *del = g_variant_get_child_value(params, 1);
for(int i = 0, n = g_variant_n_children(del); i < n; i++) {
GVariant *v = g_variant_get_child_value(del, i);
if(g_variant_type_equal(g_variant_get_type(v),
G_VARIANT_TYPE_OBJECT_PATH)) {
const char *name = g_variant_get_string(v, NULL);
TRACE(TRACE_DEBUG, "CONNMAN", "Deleted network %s", name);
if((cs = connman_service_find(name)) != NULL)
connman_service_destroy(cs);
}
}
GVariant *add = g_variant_get_child_value(params, 0);
for(int i = 0, n = g_variant_n_children(add); i < n; i++) {
GVariant *v = g_variant_get_child_value(add, i);
const char *id =
g_variant_get_string(g_variant_get_child_value(v, 0), NULL);
cs = update_service(g_variant_get_child_value(v, 1), id, prev);
if(cs != NULL)
prev = cs;
}
}
static gboolean
on_delayed_unit_new_timeout (gpointer user_data)
{
DelayedUnitNewData *data = user_data;
update_service (data->services, data->object_path);
g_hash_table_remove (data->services->delayed_unit_news, data->object_path);
return FALSE;
}
void MessageQueueService::handle_CimServicePause(CimServicePause *req)
{
// set the paused bit and update
_capabilities |= module_capabilities::paused;
update_service(_capabilities, _mask);
_make_response(req, async_results::CIM_PAUSED);
// now tell the meta dispatcher we are stopped
}
void MessageQueueService::handle_CimServiceResume(CimServiceResume *req)
{
// clear the paused bit and update
_capabilities &= (~(module_capabilities::paused));
update_service(_capabilities, _mask);
_make_response(req, async_results::OK);
// now tell the meta dispatcher we are stopped
}
void MessageQueueService::handle_CimServiceStop(CimServiceStop *req)
{
#ifdef MESSAGEQUEUESERVICE_DEBUG
PEGASUS_STD(cout) << getQueueName() << "received STOP" << PEGASUS_STD(endl);
#endif
// set the stopeed bit and update
_capabilities |= module_capabilities::stopped;
_make_response(req, async_results::CIM_STOPPED);
// now tell the meta dispatcher we are stopped
update_service(_capabilities, _mask);
}
/******************************************************************************
* *
* Function: process_check *
* *
* Purpose: check if service is avaiable and update database *
* *
* Parameters: service - service info *
* *
* Return value: *
* *
* Author: Eugene Grigorjev *
* *
* Comments: *
* *
******************************************************************************/
static void process_check(DB_DRULE *rule, DB_DCHECK *check, char *ip)
{
int port,
first,
last;
char *curr_range = NULL,
*next_range = NULL,
*last_port = NULL;
assert(rule);
assert(check);
assert(ip);
zabbix_log(LOG_LEVEL_DEBUG, "In process_check(ip:%s, ports:%s, type:%d)",
ip,
check->ports,
check->type);
for ( curr_range = check->ports; curr_range; curr_range = next_range )
{ /* split by ',' */
if ( (next_range = strchr(curr_range, ',')) )
{
*next_range = '\0';
}
if ( (last_port = strchr(curr_range, '-')) )
{ /* split by '-' */
*last_port = '\0';
first = atoi(curr_range);
last = atoi(last_port);
*last_port = '-';
}
else
{
first = last = atoi(curr_range);
}
if ( next_range )
{
*next_range = ',';
next_range++;
}
for ( port = first; port <= last; port++)
{
check->status = discover_service(check,ip,port);
update_service(rule, check, ip, port);
}
}
zabbix_log(LOG_LEVEL_DEBUG, "End process_check()");
}
void MessageQueueService::handle_CimServiceStart(CimServiceStart *req)
{
#ifdef MESSAGEQUEUESERVICE_DEBUG
PEGASUS_STD(cout) << getQueueName() << "received START" << PEGASUS_STD(endl);
#endif
// clear the stoped bit and update
_capabilities &= (~(module_capabilities::stopped));
_make_response(req, async_results::OK);
// now tell the meta dispatcher we are stopped
update_service(_capabilities, _mask);
}
static void
on_systemd_properties_changed (GDBusConnection *connection,
const gchar *sender_name,
const gchar *object_path,
const gchar *interface_name,
const gchar *signal_name,
GVariant *parameters,
gpointer user_data)
{
Services *services = user_data;
const gchar *prop_interface;
g_variant_get (parameters, "(&sa{sv}as)", &prop_interface, NULL, NULL);
if (strcmp (prop_interface, "org.freedesktop.systemd1.Unit") == 0)
update_service (services, object_path);
}
static void manager_property_changed(DBusGProxy *proxy, const char *property,
GValue *value, gpointer user_data)
{
if (property == NULL || value == NULL)
return;
if (g_str_equal(property, "Services") == TRUE) {
gchar *path = NULL;
dbus_g_type_collection_value_iterate(value,
iterate_list, &path);
update_service(proxy, path);
g_free(path);
}
}
/*===========================================================================*
* sef_cb_init_restart *
*===========================================================================*/
static int sef_cb_init_restart(int type, sef_init_info_t *info)
{
/* Restart the reincarnation server. */
int r;
struct rproc *old_rs_rp, *new_rs_rp;
assert(info->endpoint == RS_PROC_NR);
/* Perform default state transfer first. */
r = SEF_CB_INIT_RESTART_STATEFUL(type, info);
if(r != OK) {
printf("SEF_CB_INIT_RESTART_STATEFUL failed: %d\n", r);
return r;
}
/* New RS takes over. */
old_rs_rp = rproc_ptr[_ENDPOINT_P(RS_PROC_NR)];
new_rs_rp = rproc_ptr[_ENDPOINT_P(info->old_endpoint)];
if(rs_verbose)
printf("RS: %s is the new RS after restart\n", srv_to_string(new_rs_rp));
/* If an update was in progress, end it. */
if(SRV_IS_UPDATING(old_rs_rp)) {
end_update(ERESTART, RS_REPLY);
}
/* Update the service into the replica. */
r = update_service(&old_rs_rp, &new_rs_rp, RS_DONTSWAP, 0);
if(r != OK) {
printf("update_service failed: %d\n", r);
return r;
}
/* Initialize the new RS instance. */
r = init_service(new_rs_rp, SEF_INIT_RESTART, 0);
if(r != OK) {
printf("init_service failed: %d\n", r);
return r;
}
/* Reschedule a synchronous alarm for the next period. */
if (OK != (r=sys_setalarm(RS_DELTA_T, 0)))
panic("couldn't set alarm: %d", r);
return OK;
}
/*===========================================================================*
* sef_cb_init_lu *
*===========================================================================*/
static int sef_cb_init_lu(int type, sef_init_info_t *info)
{
/* Start a new version of the reincarnation server. */
int r;
struct rproc *old_rs_rp, *new_rs_rp;
assert(info->endpoint == RS_PROC_NR);
/* Perform default state transfer first. */
sef_setcb_init_restart(SEF_CB_INIT_RESTART_STATEFUL);
r = SEF_CB_INIT_LU_DEFAULT(type, info);
if(r != OK) {
printf("SEF_CB_INIT_LU_DEFAULT failed: %d\n", r);
return r;
}
/* New RS takes over. */
old_rs_rp = rproc_ptr[_ENDPOINT_P(RS_PROC_NR)];
new_rs_rp = rproc_ptr[_ENDPOINT_P(info->old_endpoint)];
if(rs_verbose)
printf("RS: %s is the new RS after live update\n",
srv_to_string(new_rs_rp));
/* Update the service into the replica. */
r = update_service(&old_rs_rp, &new_rs_rp, RS_DONTSWAP, 0);
if(r != OK) {
printf("update_service failed: %d\n", r);
return r;
}
/* Check if everything is as expected. */
assert(RUPDATE_IS_UPDATING());
assert(RUPDATE_IS_INITIALIZING());
assert(rupdate.num_rpupds > 0);
assert(rupdate.num_init_ready_pending > 0);
return OK;
}
static void
connman_getservices(GDBusProxy *connman)
{
GError *err = NULL;
GVariant *v = g_dbus_proxy_call_sync(connman, "GetServices", NULL,
G_DBUS_CALL_FLAGS_NONE, -1, NULL, &err);
if(v == NULL) {
TRACE(TRACE_ERROR, "CONNMAN", "Unable to GetServices -- %s",
err->message);
g_error_free(err);
return;
}
GVariant *list = g_variant_get_child_value(v, 0);
connman_service_t *prev = NULL, *cs;
if(list != NULL) {
prop_destroy_childs(service_nodes);
int num_services = g_variant_n_children(list);
for(int i = 0; i < num_services; i++) {
GVariant *svc = g_variant_get_child_value(list, i);
const char *path =
g_variant_get_string(g_variant_get_child_value(svc, 0), NULL);
cs = update_service(g_variant_get_child_value(svc, 1), path, prev);
if(cs != NULL)
prev = cs;
}
}
g_variant_unref(v);
}
/*===========================================================================*
* sef_cb_init_fresh *
*===========================================================================*/
PRIVATE int sef_cb_init_fresh(int type, sef_init_info_t *info)
{
/* Initialize the reincarnation server. */
struct boot_image *ip;
int s,i;
int nr_image_srvs, nr_image_priv_srvs, nr_uncaught_init_srvs;
struct rproc *rp;
struct rproc *replica_rp;
struct rprocpub *rpub;
struct boot_image image[NR_BOOT_PROCS];
struct boot_image_priv *boot_image_priv;
struct boot_image_sys *boot_image_sys;
struct boot_image_dev *boot_image_dev;
int pid, replica_pid;
endpoint_t replica_endpoint;
int ipc_to;
int *calls;
int all_c[] = { ALL_C, NULL_C };
int no_c[] = { NULL_C };
/* See if we run in verbose mode. */
env_parse("rs_verbose", "d", 0, &rs_verbose, 0, 1);
if ((s = sys_getinfo(GET_HZ, &system_hz, sizeof(system_hz), 0, 0)) != OK)
panic("Cannot get system timer frequency\n");
/* Initialize the global init descriptor. */
rinit.rproctab_gid = cpf_grant_direct(ANY, (vir_bytes) rprocpub,
sizeof(rprocpub), CPF_READ);
if(!GRANT_VALID(rinit.rproctab_gid)) {
panic("unable to create rprocpub table grant: %d", rinit.rproctab_gid);
}
/* Initialize some global variables. */
rupdate.flags = 0;
shutting_down = FALSE;
/* Get a copy of the boot image table. */
if ((s = sys_getimage(image)) != OK) {
panic("unable to get copy of boot image table: %d", s);
}
/* Determine the number of system services in the boot image table. */
nr_image_srvs = 0;
for(i=0;i<NR_BOOT_PROCS;i++) {
ip = &image[i];
/* System services only. */
if(iskerneln(_ENDPOINT_P(ip->endpoint))) {
continue;
}
nr_image_srvs++;
}
/* Determine the number of entries in the boot image priv table and make sure
* it matches the number of system services in the boot image table.
*/
nr_image_priv_srvs = 0;
for (i=0; boot_image_priv_table[i].endpoint != NULL_BOOT_NR; i++) {
boot_image_priv = &boot_image_priv_table[i];
/* System services only. */
if(iskerneln(_ENDPOINT_P(boot_image_priv->endpoint))) {
continue;
}
nr_image_priv_srvs++;
}
if(nr_image_srvs != nr_image_priv_srvs) {
panic("boot image table and boot image priv table mismatch");
}
/* Reset the system process table. */
for (rp=BEG_RPROC_ADDR; rp<END_RPROC_ADDR; rp++) {
rp->r_flags = 0;
rp->r_pub = &rprocpub[rp - rproc];
rp->r_pub->in_use = FALSE;
}
/* Initialize the system process table in 4 steps, each of them following
* the appearance of system services in the boot image priv table.
* - Step 1: set priviliges, sys properties, and dev properties (if any)
* for every system service.
*/
for (i=0; boot_image_priv_table[i].endpoint != NULL_BOOT_NR; i++) {
boot_image_priv = &boot_image_priv_table[i];
/* System services only. */
if(iskerneln(_ENDPOINT_P(boot_image_priv->endpoint))) {
continue;
}
/* Lookup the corresponding entries in other tables. */
boot_image_info_lookup(boot_image_priv->endpoint, image,
&ip, NULL, &boot_image_sys, &boot_image_dev);
rp = &rproc[boot_image_priv - boot_image_priv_table];
rpub = rp->r_pub;
/*
* Set privileges.
*/
/* Get label. */
strcpy(rpub->label, boot_image_priv->label);
/* Force a static priv id for system services in the boot image. */
rp->r_priv.s_id = static_priv_id(
_ENDPOINT_P(boot_image_priv->endpoint));
/* Initialize privilege bitmaps and signal manager. */
rp->r_priv.s_flags = boot_image_priv->flags; /* priv flags */
rp->r_priv.s_trap_mask= SRV_OR_USR(rp, SRV_T, USR_T); /* traps */
ipc_to = SRV_OR_USR(rp, SRV_M, USR_M); /* targets */
fill_send_mask(&rp->r_priv.s_ipc_to, ipc_to == ALL_M);
rp->r_priv.s_sig_mgr= SRV_OR_USR(rp, SRV_SM, USR_SM); /* sig mgr */
rp->r_priv.s_bak_sig_mgr = NONE; /* backup sig mgr */
/* Initialize kernel call mask bitmap. */
calls = SRV_OR_USR(rp, SRV_KC, USR_KC) == ALL_C ? all_c : no_c;
fill_call_mask(calls, NR_SYS_CALLS,
rp->r_priv.s_k_call_mask, KERNEL_CALL, TRUE);
/* Set the privilege structure. */
if(boot_image_priv->endpoint != RS_PROC_NR) {
if ((s = sys_privctl(ip->endpoint, SYS_PRIV_SET_SYS, &(rp->r_priv)))
!= OK) {
panic("unable to set privilege structure: %d", s);
}
}
/* Synch the privilege structure with the kernel. */
if ((s = sys_getpriv(&(rp->r_priv), ip->endpoint)) != OK) {
panic("unable to synch privilege structure: %d", s);
}
/*
* Set sys properties.
*/
rpub->sys_flags = boot_image_sys->flags; /* sys flags */
/*
* Set dev properties.
*/
rpub->dev_flags = boot_image_dev->flags; /* device flags */
rpub->dev_nr = boot_image_dev->dev_nr; /* major device number */
rpub->dev_style = boot_image_dev->dev_style; /* device style */
rpub->dev_style2 = boot_image_dev->dev_style2; /* device style 2 */
/* Get process name. */
strcpy(rpub->proc_name, ip->proc_name);
/* Build command settings. */
rp->r_cmd[0]= '\0';
rp->r_script[0]= '\0';
build_cmd_dep(rp);
/* Initialize vm call mask bitmap. */
calls = SRV_OR_USR(rp, SRV_VC, USR_VC) == ALL_C ? all_c : no_c;
fill_call_mask(calls, NR_VM_CALLS, rpub->vm_call_mask, VM_RQ_BASE, TRUE);
/* Scheduling parameters. */
rp->r_scheduler = SRV_OR_USR(rp, SRV_SCH, USR_SCH);
rp->r_priority = SRV_OR_USR(rp, SRV_Q, USR_Q);
rp->r_quantum = SRV_OR_USR(rp, SRV_QT, USR_QT);
/* Get some settings from the boot image table. */
rpub->endpoint = ip->endpoint;
/* Set some defaults. */
rp->r_old_rp = NULL; /* no old version yet */
rp->r_new_rp = NULL; /* no new version yet */
rp->r_prev_rp = NULL; /* no prev replica yet */
rp->r_next_rp = NULL; /* no next replica yet */
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_period = 0; /* no period yet */
rp->r_exec = NULL; /* no in-memory copy yet */
rp->r_exec_len = 0;
/* Mark as in use and active. */
rp->r_flags = RS_IN_USE | RS_ACTIVE;
rproc_ptr[_ENDPOINT_P(rpub->endpoint)]= rp;
rpub->in_use = TRUE;
}
/* - Step 2: allow every system service in the boot image to run. */
nr_uncaught_init_srvs = 0;
for (i=0; boot_image_priv_table[i].endpoint != NULL_BOOT_NR; i++) {
boot_image_priv = &boot_image_priv_table[i];
/* System services only. */
if(iskerneln(_ENDPOINT_P(boot_image_priv->endpoint))) {
continue;
}
/* Lookup the corresponding slot in the system process table. */
rp = &rproc[boot_image_priv - boot_image_priv_table];
rpub = rp->r_pub;
/* RS is already running as we speak. */
if(boot_image_priv->endpoint == RS_PROC_NR) {
if ((s = init_service(rp, SEF_INIT_FRESH)) != OK) {
panic("unable to initialize RS: %d", s);
}
continue;
}
/* Allow the service to run. */
if ((s = sched_init_proc(rp)) != OK) {
panic("unable to initialize scheduling: %d", s);
}
if ((s = sys_privctl(rpub->endpoint, SYS_PRIV_ALLOW, NULL)) != OK) {
panic("unable to initialize privileges: %d", s);
}
/* Initialize service. We assume every service will always get
* back to us here at boot time.
*/
if(boot_image_priv->flags & SYS_PROC) {
if ((s = init_service(rp, SEF_INIT_FRESH)) != OK) {
panic("unable to initialize service: %d", s);
}
if(rpub->sys_flags & SF_SYNCH_BOOT) {
/* Catch init ready message now to synchronize. */
catch_boot_init_ready(rpub->endpoint);
}
else {
/* Catch init ready message later. */
nr_uncaught_init_srvs++;
}
}
}
/* - Step 3: let every system service complete initialization by
* catching all the init ready messages left.
*/
while(nr_uncaught_init_srvs) {
catch_boot_init_ready(ANY);
nr_uncaught_init_srvs--;
}
/* - Step 4: all the system services in the boot image are now running.
* Complete the initialization of the system process table in collaboration
* with other system services.
*/
for (i=0; boot_image_priv_table[i].endpoint != NULL_BOOT_NR; i++) {
boot_image_priv = &boot_image_priv_table[i];
/* System services only. */
if(iskerneln(_ENDPOINT_P(boot_image_priv->endpoint))) {
continue;
}
/* Lookup the corresponding slot in the system process table. */
rp = &rproc[boot_image_priv - boot_image_priv_table];
rpub = rp->r_pub;
/* Get pid from PM. */
rp->r_pid = getnpid(rpub->endpoint);
if(rp->r_pid == -1) {
panic("unable to get pid");
}
}
/* Set alarm to periodically check service status. */
if (OK != (s=sys_setalarm(RS_DELTA_T, 0)))
panic("couldn't set alarm: %d", s);
/* Now create a new RS instance with a private page table and let the current
* instance live update into the replica. Clone RS' own slot first.
*/
rp = rproc_ptr[_ENDPOINT_P(RS_PROC_NR)];
if((s = clone_slot(rp, &replica_rp)) != OK) {
panic("unable to clone current RS instance: %d", s);
}
/* Fork a new RS instance. */
pid = srv_fork();
if(pid == -1) {
panic("unable to fork a new RS instance");
}
replica_pid = pid ? pid : getpid();
replica_endpoint = getnprocnr(replica_pid);
replica_rp->r_pid = replica_pid;
replica_rp->r_pub->endpoint = replica_endpoint;
if(pid == 0) {
/* New RS instance running. */
/* Live update the old instance into the new one. */
s = update_service(&rp, &replica_rp, RS_SWAP);
if(s != OK) {
panic("unable to live update RS: %d", s);
}
cpf_reload();
/* Clean up the old RS instance, the new instance will take over. */
cleanup_service(rp);
/* Map out our own text and data. */
unmap_ok = 1;
_minix_unmapzero();
/* Ask VM to pin memory for the new RS instance. */
if((s = vm_memctl(RS_PROC_NR, VM_RS_MEM_PIN)) != OK) {
panic("unable to pin memory for the new RS instance: %d", s);
}
}
else {
/* Old RS instance running. */
/* Set up privileges for the new instance and let it run. */
s = sys_privctl(replica_endpoint, SYS_PRIV_SET_SYS, &(replica_rp->r_priv));
if(s != OK) {
panic("unable to set privileges for the new RS instance: %d", s);
}
if ((s = sched_init_proc(replica_rp)) != OK) {
panic("unable to initialize RS replica scheduling: %d", s);
}
s = sys_privctl(replica_endpoint, SYS_PRIV_YIELD, NULL);
if(s != OK) {
panic("unable to yield control to the new RS instance: %d", s);
}
NOT_REACHABLE;
}
return(OK);
}
