/
explain.c
2159 lines (1816 loc) · 49.6 KB
/
explain.c
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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2009 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
* Copyright (c) 2015, Joyent, Inc. All rights reserved.
*/
/*
* Service state explanation. For select services, display a description, the
* state, and possibly why the service is in that state, what's causing it to
* be in that state, and what other services it is keeping offline (impact).
*
* Explaining states other than offline is easy. For maintenance and
* degraded, we just use the auxiliary state. For offline, we must determine
* which dependencies are unsatisfied and recurse. If a causal service is not
* offline, then a svcptr to it is added to the offline service's causes list.
* If a causal service is offline, then we recurse to determine its causes and
* merge them into the causes list of the service in question (see
* add_causes()). Note that by adding a self-pointing svcptr to the causes
* lists of services which are not offline or are offline for unknown reasons,
* we can always merge the unsatisfied dependency's causes into the
* dependent's list.
*
* Computing an impact list is more involved because the dependencies in the
* repository are unidirectional; it requires determining the causes of all
* offline services. For each unsatisfied dependency of an offline service,
* a svcptr to the dependent is added to the dependency's impact_dependents
* list (see add_causes()). determine_impact() uses the lists to build an
* impact list. The direct dependency is used so that a path from the
* affected service to the causal service can be constructed (see
* print_dependency_reasons()).
*
* Because we always need at least impact counts, we always run
* determine_causes() on all services.
*
* If no arguments are given, we must select the services which are causing
* other services to be offline. We do so by adding services which are not
* running for any reason other than another service to the g_causes list in
* determine_causes().
*
* Since all services must be examined, and their states may be consulted
* a lot, it is important that we only read volatile data (like states) from
* the repository once. add_instance() reads data for an instance from the
* repository into an inst_t and puts it into the "services" cache, which is
* organized as a hash table of svc_t's, each of which has a list of inst_t's.
*/
#include "svcs.h"
#include <sys/stat.h>
#include <sys/wait.h>
#include <assert.h>
#include <errno.h>
#include <libintl.h>
#include <libuutil.h>
#include <libscf.h>
#include <libscf_priv.h>
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#define DC_DISABLED "SMF-8000-05"
#define DC_TEMPDISABLED "SMF-8000-1S"
#define DC_RSTRINVALID "SMF-8000-2A"
#define DC_RSTRABSENT "SMF-8000-3P"
#define DC_UNINIT "SMF-8000-4D"
#define DC_RSTRDEAD "SMF-8000-5H"
#define DC_ADMINMAINT "SMF-8000-63"
#define DC_SVCREQMAINT "SMF-8000-R4"
#define DC_REPTFAIL "SMF-8000-7Y"
#define DC_METHFAIL "SMF-8000-8Q"
#define DC_NONE "SMF-8000-9C"
#define DC_UNKNOWN "SMF-8000-AR"
#define DC_STARTING "SMF-8000-C4"
#define DC_ADMINDEGR "SMF-8000-DX"
#define DC_DEPABSENT "SMF-8000-E2"
#define DC_DEPRUNNING "SMF-8000-FJ"
#define DC_DEPOTHER "SMF-8000-GE"
#define DC_DEPCYCLE "SMF-8000-HP"
#define DC_INVALIDDEP "SMF-8000-JA"
#define DC_STARTFAIL "SMF-8000-KS"
#define DC_TOOQUICKLY "SMF-8000-L5"
#define DC_INVALIDSTATE "SMF-8000-N3"
#define DC_TRANSITION "SMF-8000-PH"
#define DEFAULT_MAN_PATH "/usr/share/man"
#define AUX_STATE_INVALID "invalid_aux_state"
#define uu_list_append(lst, e) uu_list_insert_before(lst, NULL, e)
#define bad_error(func, err) \
uu_panic("%s:%d: %s() failed with unknown error %d.\n", \
__FILE__, __LINE__, func, err);
typedef struct {
const char *svcname;
const char *instname;
/* restarter pg properties */
char state[MAX_SCF_STATE_STRING_SZ];
char next_state[MAX_SCF_STATE_STRING_SZ];
struct timeval stime;
const char *aux_state;
const char *aux_fmri;
int64_t start_method_waitstatus;
uint8_t enabled;
int temporary;
const char *restarter;
uu_list_t *dependencies; /* list of dependency_group's */
int active; /* In use? (cycle detection) */
int restarter_bad;
const char *summary;
uu_list_t *baddeps; /* list of dependency's */
uu_list_t *causes; /* list of svcptrs */
uu_list_t *impact_dependents; /* list of svcptrs */
uu_list_t *impact; /* list of svcptrs */
uu_list_node_t node;
} inst_t;
typedef struct service {
const char *svcname;
uu_list_t *instances;
struct service *next;
} svc_t;
struct svcptr {
inst_t *svcp;
inst_t *next_hop;
uu_list_node_t node;
};
struct dependency_group {
enum { DGG_REQALL, DGG_REQANY, DGG_OPTALL, DGG_EXCALL } grouping;
const char *type;
uu_list_t *entities; /* List of struct dependency's */
uu_list_node_t node;
};
struct dependency {
const char *fmri;
uu_list_node_t node;
};
/* Hash table of service names -> svc_t's */
#define SVC_HASH_NBUCKETS 256
#define SVC_HASH_MASK (SVC_HASH_NBUCKETS - 1)
static svc_t **services;
static uu_list_pool_t *insts, *svcptrs, *depgroups, *deps;
static uu_list_t *g_causes; /* list of svcptrs */
static scf_scope_t *g_local_scope;
static scf_service_t *g_svc;
static scf_instance_t *g_inst;
static scf_snapshot_t *g_snap;
static scf_propertygroup_t *g_pg;
static scf_property_t *g_prop;
static scf_value_t *g_val;
static scf_iter_t *g_iter, *g_viter;
static char *g_fmri, *g_value;
static size_t g_fmri_sz, g_value_sz;
static const char *g_msgbase = "http://illumos.org/msg/";
static char *emsg_nomem;
static char *emsg_invalid_dep;
extern scf_handle_t *h;
extern char *g_zonename;
/* ARGSUSED */
static int
svcptr_compare(struct svcptr *a, struct svcptr *b, void *data)
{
return (b->svcp - a->svcp);
}
static uint32_t
hash_name(const char *name)
{
uint32_t h = 0, g;
const char *p;
for (p = name; *p != '\0'; ++p) {
h = (h << 4) + *p;
if ((g = (h & 0xf0000000)) != 0) {
h ^= (g >> 24);
h ^= g;
}
}
return (h);
}
static void
x_init(void)
{
emsg_nomem = gettext("Out of memory.\n");
emsg_invalid_dep =
gettext("svc:/%s:%s has invalid dependency \"%s\".\n");
services = calloc(SVC_HASH_NBUCKETS, sizeof (*services));
if (services == NULL)
uu_die(emsg_nomem);
insts = uu_list_pool_create("insts", sizeof (inst_t),
offsetof(inst_t, node), NULL, UU_LIST_POOL_DEBUG);
svcptrs = uu_list_pool_create("svcptrs", sizeof (struct svcptr),
offsetof(struct svcptr, node), (uu_compare_fn_t *)svcptr_compare,
UU_LIST_POOL_DEBUG);
depgroups = uu_list_pool_create("depgroups",
sizeof (struct dependency_group),
offsetof(struct dependency_group, node), NULL, UU_LIST_POOL_DEBUG);
deps = uu_list_pool_create("deps", sizeof (struct dependency),
offsetof(struct dependency, node), NULL, UU_LIST_POOL_DEBUG);
g_causes = uu_list_create(svcptrs, NULL, UU_LIST_DEBUG);
if (insts == NULL || svcptrs == NULL || depgroups == NULL ||
deps == NULL || g_causes == NULL)
uu_die(emsg_nomem);
if ((g_local_scope = scf_scope_create(h)) == NULL ||
(g_svc = scf_service_create(h)) == NULL ||
(g_inst = scf_instance_create(h)) == NULL ||
(g_snap = scf_snapshot_create(h)) == NULL ||
(g_pg = scf_pg_create(h)) == NULL ||
(g_prop = scf_property_create(h)) == NULL ||
(g_val = scf_value_create(h)) == NULL ||
(g_iter = scf_iter_create(h)) == NULL ||
(g_viter = scf_iter_create(h)) == NULL)
scfdie();
if (scf_handle_get_scope(h, SCF_SCOPE_LOCAL, g_local_scope) != 0)
scfdie();
g_fmri_sz = max_scf_fmri_length + 1;
g_fmri = safe_malloc(g_fmri_sz);
g_value_sz = max_scf_value_length + 1;
g_value = safe_malloc(g_value_sz);
}
/*
* Repository loading routines.
*/
/*
* Returns
* 0 - success
* ECANCELED - inst was deleted
* EINVAL - inst is invalid
*/
static int
load_dependencies(inst_t *svcp, scf_instance_t *inst)
{
scf_snapshot_t *snap;
struct dependency_group *dg;
struct dependency *d;
int r;
assert(svcp->dependencies == NULL);
svcp->dependencies = uu_list_create(depgroups, svcp, UU_LIST_DEBUG);
if (svcp->dependencies == NULL)
uu_die(emsg_nomem);
if (scf_instance_get_snapshot(inst, "running", g_snap) == 0) {
snap = g_snap;
} else {
if (scf_error() != SCF_ERROR_NOT_FOUND)
scfdie();
snap = NULL;
}
if (scf_iter_instance_pgs_typed_composed(g_iter, inst, snap,
SCF_GROUP_DEPENDENCY) != 0) {
if (scf_error() != SCF_ERROR_DELETED)
scfdie();
return (ECANCELED);
}
for (;;) {
r = scf_iter_next_pg(g_iter, g_pg);
if (r == 0)
break;
if (r != 1) {
if (scf_error() != SCF_ERROR_DELETED)
scfdie();
return (ECANCELED);
}
dg = safe_malloc(sizeof (*dg));
(void) memset(dg, 0, sizeof (*dg));
dg->entities = uu_list_create(deps, dg, UU_LIST_DEBUG);
if (dg->entities == NULL)
uu_die(emsg_nomem);
if (pg_get_single_val(g_pg, SCF_PROPERTY_GROUPING,
SCF_TYPE_ASTRING, g_value, g_value_sz, 0) != 0)
return (EINVAL);
if (strcmp(g_value, "require_all") == 0)
dg->grouping = DGG_REQALL;
else if (strcmp(g_value, "require_any") == 0)
dg->grouping = DGG_REQANY;
else if (strcmp(g_value, "optional_all") == 0)
dg->grouping = DGG_OPTALL;
else if (strcmp(g_value, "exclude_all") == 0)
dg->grouping = DGG_EXCALL;
else {
(void) fprintf(stderr, gettext("svc:/%s:%s has "
"dependency with unknown type \"%s\".\n"),
svcp->svcname, svcp->instname, g_value);
return (EINVAL);
}
if (pg_get_single_val(g_pg, SCF_PROPERTY_TYPE, SCF_TYPE_ASTRING,
g_value, g_value_sz, 0) != 0)
return (EINVAL);
dg->type = safe_strdup(g_value);
if (scf_pg_get_property(g_pg, SCF_PROPERTY_ENTITIES, g_prop) !=
0) {
switch (scf_error()) {
case SCF_ERROR_NOT_FOUND:
(void) fprintf(stderr, gettext("svc:/%s:%s has "
"dependency without an entities "
"property.\n"), svcp->svcname,
svcp->instname);
return (EINVAL);
case SCF_ERROR_DELETED:
return (ECANCELED);
default:
scfdie();
}
}
if (scf_iter_property_values(g_viter, g_prop) != 0) {
if (scf_error() != SCF_ERROR_DELETED)
scfdie();
return (ECANCELED);
}
for (;;) {
r = scf_iter_next_value(g_viter, g_val);
if (r == 0)
break;
if (r != 1) {
if (scf_error() != SCF_ERROR_DELETED)
scfdie();
return (ECANCELED);
}
d = safe_malloc(sizeof (*d));
d->fmri = safe_malloc(max_scf_fmri_length + 1);
if (scf_value_get_astring(g_val, (char *)d->fmri,
max_scf_fmri_length + 1) < 0)
scfdie();
uu_list_node_init(d, &d->node, deps);
(void) uu_list_append(dg->entities, d);
}
uu_list_node_init(dg, &dg->node, depgroups);
r = uu_list_append(svcp->dependencies, dg);
assert(r == 0);
}
return (0);
}
static void
add_instance(const char *svcname, const char *instname, scf_instance_t *inst)
{
inst_t *instp;
svc_t *svcp;
int have_enabled = 0;
uint8_t i;
uint32_t h;
int r;
h = hash_name(svcname) & SVC_HASH_MASK;
for (svcp = services[h]; svcp != NULL; svcp = svcp->next) {
if (strcmp(svcp->svcname, svcname) == 0)
break;
}
if (svcp == NULL) {
svcp = safe_malloc(sizeof (*svcp));
svcp->svcname = safe_strdup(svcname);
svcp->instances = uu_list_create(insts, svcp, UU_LIST_DEBUG);
if (svcp->instances == NULL)
uu_die(emsg_nomem);
svcp->next = services[h];
services[h] = svcp;
}
instp = safe_malloc(sizeof (*instp));
(void) memset(instp, 0, sizeof (*instp));
instp->svcname = svcp->svcname;
instp->instname = safe_strdup(instname);
instp->impact_dependents =
uu_list_create(svcptrs, instp, UU_LIST_DEBUG);
if (instp->impact_dependents == NULL)
uu_die(emsg_nomem);
if (scf_instance_get_pg(inst, SCF_PG_RESTARTER, g_pg) != 0) {
switch (scf_error()) {
case SCF_ERROR_DELETED:
return;
case SCF_ERROR_NOT_FOUND:
(void) fprintf(stderr, gettext("svc:/%s:%s has no "
"\"%s\" property group; ignoring.\n"),
instp->svcname, instp->instname, SCF_PG_RESTARTER);
return;
default:
scfdie();
}
}
if (pg_get_single_val(g_pg, SCF_PROPERTY_STATE, SCF_TYPE_ASTRING,
(void *)instp->state, sizeof (instp->state), 0) != 0)
return;
if (pg_get_single_val(g_pg, SCF_PROPERTY_NEXT_STATE, SCF_TYPE_ASTRING,
(void *)instp->next_state, sizeof (instp->next_state), 0) != 0)
return;
if (pg_get_single_val(g_pg, SCF_PROPERTY_STATE_TIMESTAMP,
SCF_TYPE_TIME, &instp->stime, 0, 0) != 0)
return;
/* restarter may not set aux_state, allow to continue in that case */
if (pg_get_single_val(g_pg, SCF_PROPERTY_AUX_STATE, SCF_TYPE_ASTRING,
g_fmri, g_fmri_sz, 0) == 0)
instp->aux_state = safe_strdup(g_fmri);
else
instp->aux_state = safe_strdup(AUX_STATE_INVALID);
(void) pg_get_single_val(g_pg, SCF_PROPERTY_START_METHOD_WAITSTATUS,
SCF_TYPE_INTEGER, &instp->start_method_waitstatus, 0, 0);
/* Get the optional auxiliary_fmri */
if (pg_get_single_val(g_pg, SCF_PROPERTY_AUX_FMRI, SCF_TYPE_ASTRING,
g_fmri, g_fmri_sz, 0) == 0)
instp->aux_fmri = safe_strdup(g_fmri);
if (scf_instance_get_pg(inst, SCF_PG_GENERAL_OVR, g_pg) == 0) {
if (pg_get_single_val(g_pg, SCF_PROPERTY_ENABLED,
SCF_TYPE_BOOLEAN, &instp->enabled, 0, 0) == 0)
have_enabled = 1;
} else {
switch (scf_error()) {
case SCF_ERROR_NOT_FOUND:
break;
case SCF_ERROR_DELETED:
return;
default:
scfdie();
}
}
if (scf_instance_get_pg_composed(inst, NULL, SCF_PG_GENERAL, g_pg) !=
0) {
switch (scf_error()) {
case SCF_ERROR_DELETED:
case SCF_ERROR_NOT_FOUND:
return;
default:
scfdie();
}
}
if (pg_get_single_val(g_pg, SCF_PROPERTY_ENABLED, SCF_TYPE_BOOLEAN,
&i, 0, 0) != 0)
return;
if (!have_enabled) {
instp->enabled = i;
instp->temporary = 0;
} else {
instp->temporary = (instp->enabled != i);
}
if (pg_get_single_val(g_pg, SCF_PROPERTY_RESTARTER, SCF_TYPE_ASTRING,
g_fmri, g_fmri_sz, 0) == 0)
instp->restarter = safe_strdup(g_fmri);
else
instp->restarter = SCF_SERVICE_STARTD;
if (strcmp(instp->state, SCF_STATE_STRING_OFFLINE) == 0 &&
load_dependencies(instp, inst) != 0)
return;
uu_list_node_init(instp, &instp->node, insts);
r = uu_list_append(svcp->instances, instp);
assert(r == 0);
}
static void
load_services(void)
{
scf_iter_t *siter, *iiter;
int r;
char *svcname, *instname;
if ((siter = scf_iter_create(h)) == NULL ||
(iiter = scf_iter_create(h)) == NULL)
scfdie();
svcname = safe_malloc(max_scf_name_length + 1);
instname = safe_malloc(max_scf_name_length + 1);
if (scf_iter_scope_services(siter, g_local_scope) != 0)
scfdie();
for (;;) {
r = scf_iter_next_service(siter, g_svc);
if (r == 0)
break;
if (r != 1)
scfdie();
if (scf_service_get_name(g_svc, svcname,
max_scf_name_length + 1) < 0) {
if (scf_error() != SCF_ERROR_DELETED)
scfdie();
continue;
}
if (scf_iter_service_instances(iiter, g_svc) != 0) {
if (scf_error() != SCF_ERROR_DELETED)
scfdie();
continue;
}
for (;;) {
r = scf_iter_next_instance(iiter, g_inst);
if (r == 0)
break;
if (r != 1) {
if (scf_error() != SCF_ERROR_DELETED)
scfdie();
break;
}
if (scf_instance_get_name(g_inst, instname,
max_scf_name_length + 1) < 0) {
if (scf_error() != SCF_ERROR_DELETED)
scfdie();
continue;
}
add_instance(svcname, instname, g_inst);
}
}
free(svcname);
free(instname);
scf_iter_destroy(siter);
scf_iter_destroy(iiter);
}
/*
* Dependency analysis routines.
*/
static void
add_svcptr(uu_list_t *lst, inst_t *svcp)
{
struct svcptr *spp;
uu_list_index_t idx;
int r;
spp = safe_malloc(sizeof (*spp));
spp->svcp = svcp;
spp->next_hop = NULL;
if (uu_list_find(lst, spp, NULL, &idx) != NULL) {
free(spp);
return;
}
uu_list_node_init(spp, &spp->node, svcptrs);
r = uu_list_append(lst, spp);
assert(r == 0);
}
static int determine_causes(inst_t *, void *);
/*
* Determine the causes of src and add them to the causes list of dst.
* Returns ELOOP if src is active, and 0 otherwise.
*/
static int
add_causes(inst_t *dst, inst_t *src)
{
struct svcptr *spp, *copy;
uu_list_index_t idx;
if (determine_causes(src, (void *)1) != UU_WALK_NEXT) {
/* Dependency cycle. */
(void) fprintf(stderr, " svc:/%s:%s\n", dst->svcname,
dst->instname);
return (ELOOP);
}
add_svcptr(src->impact_dependents, dst);
for (spp = uu_list_first(src->causes);
spp != NULL;
spp = uu_list_next(src->causes, spp)) {
if (uu_list_find(dst->causes, spp, NULL, &idx) != NULL)
continue;
copy = safe_malloc(sizeof (*copy));
copy->svcp = spp->svcp;
copy->next_hop = src;
uu_list_node_init(copy, ©->node, svcptrs);
uu_list_insert(dst->causes, copy, idx);
add_svcptr(g_causes, spp->svcp);
}
return (0);
}
static int
inst_running(inst_t *ip)
{
return (strcmp(ip->state, SCF_STATE_STRING_ONLINE) == 0 ||
strcmp(ip->state, SCF_STATE_STRING_DEGRADED) == 0);
}
static int
inst_running_or_maint(inst_t *ip)
{
return (inst_running(ip) ||
strcmp(ip->state, SCF_STATE_STRING_MAINT) == 0);
}
static svc_t *
get_svc(const char *sn)
{
uint32_t h;
svc_t *svcp;
h = hash_name(sn) & SVC_HASH_MASK;
for (svcp = services[h]; svcp != NULL; svcp = svcp->next) {
if (strcmp(svcp->svcname, sn) == 0)
break;
}
return (svcp);
}
/* ARGSUSED */
static inst_t *
get_inst(svc_t *svcp, const char *in)
{
inst_t *instp;
for (instp = uu_list_first(svcp->instances);
instp != NULL;
instp = uu_list_next(svcp->instances, instp)) {
if (strcmp(instp->instname, in) == 0)
return (instp);
}
return (NULL);
}
static int
get_fmri(const char *fmri, svc_t **spp, inst_t **ipp)
{
const char *sn, *in;
svc_t *sp;
inst_t *ip;
if (strlcpy(g_fmri, fmri, g_fmri_sz) >= g_fmri_sz)
return (EINVAL);
if (scf_parse_svc_fmri(g_fmri, NULL, &sn, &in, NULL, NULL) != 0)
return (EINVAL);
if (sn == NULL)
return (EINVAL);
sp = get_svc(sn);
if (sp == NULL)
return (ENOENT);
if (in != NULL) {
ip = get_inst(sp, in);
if (ip == NULL)
return (ENOENT);
}
if (spp != NULL)
*spp = sp;
if (ipp != NULL)
*ipp = ((in == NULL) ? NULL : ip);
return (0);
}
static int
process_reqall(inst_t *svcp, struct dependency_group *dg)
{
uu_list_walk_t *walk;
struct dependency *d;
int r, svcrunning;
svc_t *sp;
inst_t *ip;
walk = uu_list_walk_start(dg->entities, UU_WALK_ROBUST);
if (walk == NULL)
uu_die(emsg_nomem);
while ((d = uu_list_walk_next(walk)) != NULL) {
r = get_fmri(d->fmri, &sp, &ip);
switch (r) {
case EINVAL:
/* LINTED */
(void) fprintf(stderr, emsg_invalid_dep, svcp->svcname,
svcp->instname, d->fmri);
continue;
case ENOENT:
uu_list_remove(dg->entities, d);
r = uu_list_append(svcp->baddeps, d);
assert(r == 0);
continue;
case 0:
break;
default:
bad_error("get_fmri", r);
}
if (ip != NULL) {
if (inst_running(ip))
continue;
r = add_causes(svcp, ip);
if (r != 0) {
assert(r == ELOOP);
return (r);
}
continue;
}
svcrunning = 0;
for (ip = uu_list_first(sp->instances);
ip != NULL;
ip = uu_list_next(sp->instances, ip)) {
if (inst_running(ip))
svcrunning = 1;
}
if (!svcrunning) {
for (ip = uu_list_first(sp->instances);
ip != NULL;
ip = uu_list_next(sp->instances, ip)) {
r = add_causes(svcp, ip);
if (r != 0) {
assert(r == ELOOP);
uu_list_walk_end(walk);
return (r);
}
}
}
}
uu_list_walk_end(walk);
return (0);
}
static int
process_reqany(inst_t *svcp, struct dependency_group *dg)
{
svc_t *sp;
inst_t *ip;
struct dependency *d;
int r;
uu_list_walk_t *walk;
for (d = uu_list_first(dg->entities);
d != NULL;
d = uu_list_next(dg->entities, d)) {
r = get_fmri(d->fmri, &sp, &ip);
switch (r) {
case 0:
break;
case EINVAL:
/* LINTED */
(void) fprintf(stderr, emsg_invalid_dep, svcp->svcname,
svcp->instname, d->fmri);
continue;
case ENOENT:
continue;
default:
bad_error("eval_svc_dep", r);
}
if (ip != NULL) {
if (inst_running(ip))
return (0);
continue;
}
for (ip = uu_list_first(sp->instances);
ip != NULL;
ip = uu_list_next(sp->instances, ip)) {
if (inst_running(ip))
return (0);
}
}
/*
* The dependency group is not satisfied. Add all unsatisfied members
* to the cause list.
*/
walk = uu_list_walk_start(dg->entities, UU_WALK_ROBUST);
if (walk == NULL)
uu_die(emsg_nomem);
while ((d = uu_list_walk_next(walk)) != NULL) {
r = get_fmri(d->fmri, &sp, &ip);
switch (r) {
case 0:
break;
case ENOENT:
uu_list_remove(dg->entities, d);
r = uu_list_append(svcp->baddeps, d);
assert(r == 0);
continue;
case EINVAL:
/* Should have caught above. */
default:
bad_error("eval_svc_dep", r);
}
if (ip != NULL) {
if (inst_running(ip))
continue;
r = add_causes(svcp, ip);
if (r != 0) {
assert(r == ELOOP);
return (r);
}
continue;
}
for (ip = uu_list_first(sp->instances);
ip != NULL;
ip = uu_list_next(sp->instances, ip)) {
if (inst_running(ip))
continue;
r = add_causes(svcp, ip);
if (r != 0) {
assert(r == ELOOP);
return (r);
}
}
}
return (0);
}
static int
process_optall(inst_t *svcp, struct dependency_group *dg)
{
uu_list_walk_t *walk;
struct dependency *d;
int r;
inst_t *ip;
svc_t *sp;
walk = uu_list_walk_start(dg->entities, UU_WALK_ROBUST);
if (walk == NULL)
uu_die(emsg_nomem);
while ((d = uu_list_walk_next(walk)) != NULL) {
r = get_fmri(d->fmri, &sp, &ip);
switch (r) {
case 0:
break;
case EINVAL:
/* LINTED */
(void) fprintf(stderr, emsg_invalid_dep, svcp->svcname,
svcp->instname, d->fmri);
continue;
case ENOENT:
continue;
default:
bad_error("get_fmri", r);
}
if (ip != NULL) {
if ((ip->enabled != 0) && !inst_running_or_maint(ip)) {
r = add_causes(svcp, ip);
if (r != 0) {
assert(r == ELOOP);
uu_list_walk_end(walk);
return (r);
}
}
continue;
}
for (ip = uu_list_first(sp->instances);
ip != NULL;
ip = uu_list_next(sp->instances, ip)) {
if ((ip->enabled != 0) && !inst_running_or_maint(ip)) {
r = add_causes(svcp, ip);
if (r != 0) {
assert(r == ELOOP);
uu_list_walk_end(walk);
return (r);
}
}
}
}
uu_list_walk_end(walk);
return (0);
}
static int
process_excall(inst_t *svcp, struct dependency_group *dg)
{
struct dependency *d;
int r;
svc_t *sp;
inst_t *ip;
for (d = uu_list_first(dg->entities);
d != NULL;
d = uu_list_next(dg->entities, d)) {
r = get_fmri(d->fmri, &sp, &ip);
switch (r) {
case 0:
break;
case EINVAL:
/* LINTED */
(void) fprintf(stderr, emsg_invalid_dep, svcp->svcname,
svcp->instname, d->fmri);
continue;
case ENOENT:
continue;