X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Fmanager.c;h=be47766a734d39de237265f3b9a1181ce179ebe1;hp=9e4bd51d5c28607ced180019dcb485e15ba52fbf;hb=1c0f62e37b0e775df7cb6121bc6ae64d1d885d3b;hpb=44d91056924e1e64699892f71121b40c46489e57 diff --git a/src/manager.c b/src/manager.c index 9e4bd51d5..be47766a7 100644 --- a/src/manager.c +++ b/src/manager.c @@ -41,6 +41,8 @@ #include #endif +#include + #include "manager.h" #include "hashmap.h" #include "macro.h" @@ -58,7 +60,8 @@ #include "special.h" #include "bus-errors.h" #include "exit-status.h" -#include "sd-daemon.h" +#include "virt.h" +#include "watchdog.h" /* As soon as 16 units are in our GC queue, make sure to run a gc sweep */ #define GC_QUEUE_ENTRIES_MAX 16 @@ -76,7 +79,8 @@ static int manager_setup_notify(Manager *m) { struct sockaddr_un un; } sa; struct epoll_event ev; - int one = 1; + int one = 1, r; + mode_t u; assert(m); @@ -99,7 +103,11 @@ static int manager_setup_notify(Manager *m) { if (sa.un.sun_path[0] == '@') sa.un.sun_path[0] = 0; - if (bind(m->notify_watch.fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + 1 + strlen(sa.un.sun_path+1)) < 0) { + u = umask(0111); + r = bind(m->notify_watch.fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + 1 + strlen(sa.un.sun_path+1)); + umask(u); + + if (r < 0) { log_error("bind() failed: %m"); return -errno; } @@ -188,6 +196,7 @@ static int manager_setup_signals(Manager *m) { SIGRTMIN+21, /* systemd: disable status messages */ SIGRTMIN+22, /* systemd: set log level to LOG_DEBUG */ SIGRTMIN+23, /* systemd: set log level to LOG_INFO */ + SIGRTMIN+26, /* systemd: set log target to journal-or-kmsg */ SIGRTMIN+27, /* systemd: set log target to console */ SIGRTMIN+28, /* systemd: set log target to kmsg */ SIGRTMIN+29, /* systemd: set log target to syslog-or-kmsg */ @@ -225,7 +234,7 @@ int manager_new(ManagerRunningAs running_as, Manager **_m) { dual_timestamp_get(&m->startup_timestamp); m->running_as = running_as; - m->name_data_slot = m->subscribed_data_slot = -1; + m->name_data_slot = m->conn_data_slot = m->subscribed_data_slot = -1; m->exit_code = _MANAGER_EXIT_CODE_INVALID; m->pin_cgroupfs_fd = -1; @@ -239,8 +248,11 @@ int manager_new(ManagerRunningAs running_as, Manager **_m) { if (!(m->environment = strv_copy(environ))) goto fail; - if (!(m->default_controllers = strv_new("cpu", NULL))) - goto fail; + if (running_as == MANAGER_SYSTEM) { + m->default_controllers = strv_new("cpu", NULL); + if (!m->default_controllers) + goto fail; + } if (!(m->units = hashmap_new(string_hash_func, string_compare_func))) goto fail; @@ -280,7 +292,10 @@ int manager_new(ManagerRunningAs running_as, Manager **_m) { goto fail; #ifdef HAVE_AUDIT - if ((m->audit_fd = audit_open()) < 0) + if ((m->audit_fd = audit_open()) < 0 && + /* If the kernel lacks netlink or audit support, + * don't worry about it. */ + errno != EAFNOSUPPORT && errno != EPROTONOSUPPORT) log_error("Failed to connect to audit log: %m"); #endif @@ -295,15 +310,15 @@ fail: } static unsigned manager_dispatch_cleanup_queue(Manager *m) { - Meta *meta; + Unit *u; unsigned n = 0; assert(m); - while ((meta = m->cleanup_queue)) { - assert(meta->in_cleanup_queue); + while ((u = m->cleanup_queue)) { + assert(u->in_cleanup_queue); - unit_free((Unit*) meta); + unit_free(u); n++; } @@ -325,28 +340,28 @@ static void unit_gc_sweep(Unit *u, unsigned gc_marker) { assert(u); - if (u->meta.gc_marker == gc_marker + GC_OFFSET_GOOD || - u->meta.gc_marker == gc_marker + GC_OFFSET_BAD || - u->meta.gc_marker == gc_marker + GC_OFFSET_IN_PATH) + if (u->gc_marker == gc_marker + GC_OFFSET_GOOD || + u->gc_marker == gc_marker + GC_OFFSET_BAD || + u->gc_marker == gc_marker + GC_OFFSET_IN_PATH) return; - if (u->meta.in_cleanup_queue) + if (u->in_cleanup_queue) goto bad; if (unit_check_gc(u)) goto good; - u->meta.gc_marker = gc_marker + GC_OFFSET_IN_PATH; + u->gc_marker = gc_marker + GC_OFFSET_IN_PATH; is_bad = true; - SET_FOREACH(other, u->meta.dependencies[UNIT_REFERENCED_BY], i) { + SET_FOREACH(other, u->dependencies[UNIT_REFERENCED_BY], i) { unit_gc_sweep(other, gc_marker); - if (other->meta.gc_marker == gc_marker + GC_OFFSET_GOOD) + if (other->gc_marker == gc_marker + GC_OFFSET_GOOD) goto good; - if (other->meta.gc_marker != gc_marker + GC_OFFSET_BAD) + if (other->gc_marker != gc_marker + GC_OFFSET_BAD) is_bad = false; } @@ -355,23 +370,23 @@ static void unit_gc_sweep(Unit *u, unsigned gc_marker) { /* We were unable to find anything out about this entry, so * let's investigate it later */ - u->meta.gc_marker = gc_marker + GC_OFFSET_UNSURE; + u->gc_marker = gc_marker + GC_OFFSET_UNSURE; unit_add_to_gc_queue(u); return; bad: /* We definitely know that this one is not useful anymore, so * let's mark it for deletion */ - u->meta.gc_marker = gc_marker + GC_OFFSET_BAD; + u->gc_marker = gc_marker + GC_OFFSET_BAD; unit_add_to_cleanup_queue(u); return; good: - u->meta.gc_marker = gc_marker + GC_OFFSET_GOOD; + u->gc_marker = gc_marker + GC_OFFSET_GOOD; } static unsigned manager_dispatch_gc_queue(Manager *m) { - Meta *meta; + Unit *u; unsigned n = 0; unsigned gc_marker; @@ -390,21 +405,21 @@ static unsigned manager_dispatch_gc_queue(Manager *m) { gc_marker = m->gc_marker; - while ((meta = m->gc_queue)) { - assert(meta->in_gc_queue); + while ((u = m->gc_queue)) { + assert(u->in_gc_queue); - unit_gc_sweep((Unit*) meta, gc_marker); + unit_gc_sweep(u, gc_marker); - LIST_REMOVE(Meta, gc_queue, m->gc_queue, meta); - meta->in_gc_queue = false; + LIST_REMOVE(Unit, gc_queue, m->gc_queue, u); + u->in_gc_queue = false; n++; - if (meta->gc_marker == gc_marker + GC_OFFSET_BAD || - meta->gc_marker == gc_marker + GC_OFFSET_UNSURE) { - log_debug("Collecting %s", meta->id); - meta->gc_marker = gc_marker + GC_OFFSET_BAD; - unit_add_to_cleanup_queue((Unit*) meta); + if (u->gc_marker == gc_marker + GC_OFFSET_BAD || + u->gc_marker == gc_marker + GC_OFFSET_UNSURE) { + log_debug("Collecting %s", u->id); + u->gc_marker = gc_marker + GC_OFFSET_BAD; + unit_add_to_cleanup_queue(u); } } @@ -519,7 +534,7 @@ int manager_coldplug(Manager *m) { HASHMAP_FOREACH_KEY(u, k, m->units, i) { /* ignore aliases */ - if (u->meta.id != k) + if (u->id != k) continue; if ((q = unit_coldplug(u)) < 0) @@ -812,8 +827,8 @@ static int delete_one_unmergeable_job(Manager *m, Job *j) { * another unit in which case we * rather remove the start. */ - log_debug("Looking at job %s/%s conflicted_by=%s", j->unit->meta.id, job_type_to_string(j->type), yes_no(j->type == JOB_STOP && job_is_conflicted_by(j))); - log_debug("Looking at job %s/%s conflicted_by=%s", k->unit->meta.id, job_type_to_string(k->type), yes_no(k->type == JOB_STOP && job_is_conflicted_by(k))); + log_debug("Looking at job %s/%s conflicted_by=%s", j->unit->id, job_type_to_string(j->type), yes_no(j->type == JOB_STOP && job_is_conflicted_by(j))); + log_debug("Looking at job %s/%s conflicted_by=%s", k->unit->id, job_type_to_string(k->type), yes_no(k->type == JOB_STOP && job_is_conflicted_by(k))); if (j->type == JOB_STOP) { @@ -839,7 +854,7 @@ static int delete_one_unmergeable_job(Manager *m, Job *j) { return -ENOEXEC; /* Ok, we can drop one, so let's do so. */ - log_debug("Fixing conflicting jobs by deleting job %s/%s", d->unit->meta.id, job_type_to_string(d->type)); + log_debug("Fixing conflicting jobs by deleting job %s/%s", d->unit->id, job_type_to_string(d->type)); transaction_delete_job(m, d, true); return 0; } @@ -877,7 +892,7 @@ static int transaction_merge_jobs(Manager *m, DBusError *e) { /* We couldn't merge anything. Failure */ dbus_set_error(e, BUS_ERROR_TRANSACTION_JOBS_CONFLICTING, "Transaction contains conflicting jobs '%s' and '%s' for %s. Probably contradicting requirement dependencies configured.", - job_type_to_string(t), job_type_to_string(k->type), k->unit->meta.id); + job_type_to_string(t), job_type_to_string(k->type), k->unit->id); return r; } } @@ -892,8 +907,8 @@ static int transaction_merge_jobs(Manager *m, DBusError *e) { assert_se(job_type_merge(&t, k->type) == 0); /* If an active job is mergeable, merge it too */ - if (j->unit->meta.job) - job_type_merge(&t, j->unit->meta.job->type); /* Might fail. Which is OK */ + if (j->unit->job) + job_type_merge(&t, j->unit->job->type); /* Might fail. Which is OK */ while ((k = j->transaction_next)) { if (j->installed) { @@ -903,8 +918,8 @@ static int transaction_merge_jobs(Manager *m, DBusError *e) { transaction_merge_and_delete_job(m, j, k, t); } - if (j->unit->meta.job && !j->installed) - transaction_merge_and_delete_job(m, j, j->unit->meta.job, t); + if (j->unit->job && !j->installed) + transaction_merge_and_delete_job(m, j, j->unit->job, t); assert(!j->transaction_next); assert(!j->transaction_prev); @@ -935,7 +950,7 @@ static void transaction_drop_redundant(Manager *m) { if (!job_is_anchor(k) && (k->installed || job_type_is_redundant(k->type, unit_active_state(k->unit))) && - (!k->unit->meta.job || !job_type_is_conflicting(k->type, k->unit->meta.job->type))) + (!k->unit->job || !job_type_is_conflicting(k->type, k->unit->job->type))) continue; changes_something = true; @@ -945,7 +960,7 @@ static void transaction_drop_redundant(Manager *m) { if (changes_something) continue; - /* log_debug("Found redundant job %s/%s, dropping.", j->unit->meta.id, job_type_to_string(j->type)); */ + /* log_debug("Found redundant job %s/%s, dropping.", j->unit->id, job_type_to_string(j->type)); */ transaction_delete_job(m, j, false); again = true; break; @@ -996,12 +1011,12 @@ static int transaction_verify_order_one(Manager *m, Job *j, Job *from, unsigned * job to remove. We use the marker to find our way * back, since smart how we are we stored our way back * in there. */ - log_warning("Found ordering cycle on %s/%s", j->unit->meta.id, job_type_to_string(j->type)); + log_warning("Found ordering cycle on %s/%s", j->unit->id, job_type_to_string(j->type)); delete = NULL; for (k = from; k; k = ((k->generation == generation && k->marker != k) ? k->marker : NULL)) { - log_info("Walked on cycle path to %s/%s", k->unit->meta.id, job_type_to_string(k->type)); + log_info("Walked on cycle path to %s/%s", k->unit->id, job_type_to_string(k->type)); if (!delete && !k->installed && @@ -1019,7 +1034,7 @@ static int transaction_verify_order_one(Manager *m, Job *j, Job *from, unsigned if (delete) { - log_warning("Breaking ordering cycle by deleting job %s/%s", delete->unit->meta.id, job_type_to_string(delete->type)); + log_warning("Breaking ordering cycle by deleting job %s/%s", delete->unit->id, job_type_to_string(delete->type)); transaction_delete_unit(m, delete->unit); return -EAGAIN; } @@ -1039,7 +1054,7 @@ static int transaction_verify_order_one(Manager *m, Job *j, Job *from, unsigned /* We assume that the the dependencies are bidirectional, and * hence can ignore UNIT_AFTER */ - SET_FOREACH(u, j->unit->meta.dependencies[UNIT_BEFORE], i) { + SET_FOREACH(u, j->unit->dependencies[UNIT_BEFORE], i) { Job *o; /* Is there a job for this unit? */ @@ -1048,7 +1063,7 @@ static int transaction_verify_order_one(Manager *m, Job *j, Job *from, unsigned /* Ok, there is no job for this in the * transaction, but maybe there is already one * running? */ - if (!(o = u->meta.job)) + if (!(o = u->job)) continue; if ((r = transaction_verify_order_one(m, o, j, generation, e)) < 0) @@ -1099,13 +1114,13 @@ static void transaction_collect_garbage(Manager *m) { HASHMAP_FOREACH(j, m->transaction_jobs, i) { if (j->object_list) { /* log_debug("Keeping job %s/%s because of %s/%s", */ - /* j->unit->meta.id, job_type_to_string(j->type), */ - /* j->object_list->subject ? j->object_list->subject->unit->meta.id : "root", */ + /* j->unit->id, job_type_to_string(j->type), */ + /* j->object_list->subject ? j->object_list->subject->unit->id : "root", */ /* j->object_list->subject ? job_type_to_string(j->object_list->subject->type) : "root"); */ continue; } - /* log_debug("Garbage collecting job %s/%s", j->unit->meta.id, job_type_to_string(j->type)); */ + /* log_debug("Garbage collecting job %s/%s", j->unit->id, job_type_to_string(j->type)); */ transaction_delete_job(m, j, true); again = true; break; @@ -1129,9 +1144,9 @@ static int transaction_is_destructive(Manager *m, DBusError *e) { assert(!j->transaction_prev); assert(!j->transaction_next); - if (j->unit->meta.job && - j->unit->meta.job != j && - !job_type_is_superset(j->type, j->unit->meta.job->type)) { + if (j->unit->job && + j->unit->job != j && + !job_type_is_superset(j->type, j->unit->job->type)) { dbus_set_error(e, BUS_ERROR_TRANSACTION_IS_DESTRUCTIVE, "Transaction is destructive."); return -EEXIST; @@ -1170,20 +1185,20 @@ static void transaction_minimize_impact(Manager *m) { j->type == JOB_STOP && UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(j->unit)); changes_existing_job = - j->unit->meta.job && - job_type_is_conflicting(j->type, j->unit->meta.job->type); + j->unit->job && + job_type_is_conflicting(j->type, j->unit->job->type); if (!stops_running_service && !changes_existing_job) continue; if (stops_running_service) - log_debug("%s/%s would stop a running service.", j->unit->meta.id, job_type_to_string(j->type)); + log_debug("%s/%s would stop a running service.", j->unit->id, job_type_to_string(j->type)); if (changes_existing_job) - log_debug("%s/%s would change existing job.", j->unit->meta.id, job_type_to_string(j->type)); + log_debug("%s/%s would change existing job.", j->unit->id, job_type_to_string(j->type)); /* Ok, let's get rid of this */ - log_debug("Deleting %s/%s to minimize impact.", j->unit->meta.id, job_type_to_string(j->type)); + log_debug("Deleting %s/%s to minimize impact.", j->unit->id, job_type_to_string(j->type)); transaction_delete_job(m, j, true); again = true; @@ -1208,13 +1223,18 @@ static int transaction_apply(Manager *m, JobMode mode) { /* When isolating first kill all installed jobs which * aren't part of the new transaction */ + rescan: HASHMAP_FOREACH(j, m->jobs, i) { assert(j->installed); if (hashmap_get(m->transaction_jobs, j->unit)) continue; - job_finish_and_invalidate(j, JOB_CANCELED); + /* 'j' itself is safe to remove, but if other jobs + are invalidated recursively, our iterator may become + invalid and we need to start over. */ + if (job_finish_and_invalidate(j, JOB_CANCELED) > 0) + goto rescan; } } @@ -1232,14 +1252,14 @@ static int transaction_apply(Manager *m, JobMode mode) { while ((j = hashmap_steal_first(m->transaction_jobs))) { if (j->installed) { - /* log_debug("Skipping already installed job %s/%s as %u", j->unit->meta.id, job_type_to_string(j->type), (unsigned) j->id); */ + /* log_debug("Skipping already installed job %s/%s as %u", j->unit->id, job_type_to_string(j->type), (unsigned) j->id); */ continue; } - if (j->unit->meta.job) - job_free(j->unit->meta.job); + if (j->unit->job) + job_free(j->unit->job); - j->unit->meta.job = j; + j->unit->job = j; j->installed = true; m->n_installed_jobs ++; @@ -1253,7 +1273,7 @@ static int transaction_apply(Manager *m, JobMode mode) { job_add_to_dbus_queue(j); job_start_timer(j); - log_debug("Installed new job %s/%s as %u", j->unit->meta.id, job_type_to_string(j->type), (unsigned) j->id); + log_debug("Installed new job %s/%s as %u", j->unit->id, job_type_to_string(j->type), (unsigned) j->id); } /* As last step, kill all remaining job dependencies. */ @@ -1383,8 +1403,8 @@ static Job* transaction_add_one_job(Manager *m, JobType type, Unit *unit, bool o } } - if (unit->meta.job && unit->meta.job->type == type) - j = unit->meta.job; + if (unit->job && unit->job->type == type) + j = unit->job; else if (!(j = job_new(m, type, unit))) return NULL; @@ -1403,7 +1423,7 @@ static Job* transaction_add_one_job(Manager *m, JobType type, Unit *unit, bool o if (is_new) *is_new = true; - /* log_debug("Added job %s/%s to transaction.", unit->meta.id, job_type_to_string(type)); */ + /* log_debug("Added job %s/%s to transaction.", unit->id, job_type_to_string(type)); */ return j; } @@ -1434,8 +1454,8 @@ void manager_transaction_unlink_job(Manager *m, Job *j, bool delete_dependencies if (other && delete_dependencies) { log_debug("Deleting job %s/%s as dependency of job %s/%s", - other->unit->meta.id, job_type_to_string(other->type), - j->unit->meta.id, job_type_to_string(j->type)); + other->unit->id, job_type_to_string(other->type), + j->unit->id, job_type_to_string(j->type)); transaction_delete_job(m, other, delete_dependencies); } } @@ -1464,34 +1484,34 @@ static int transaction_add_job_and_dependencies( assert(unit); /* log_debug("Pulling in %s/%s from %s/%s", */ - /* unit->meta.id, job_type_to_string(type), */ - /* by ? by->unit->meta.id : "NA", */ + /* unit->id, job_type_to_string(type), */ + /* by ? by->unit->id : "NA", */ /* by ? job_type_to_string(by->type) : "NA"); */ - if (unit->meta.load_state != UNIT_LOADED && - unit->meta.load_state != UNIT_ERROR && - unit->meta.load_state != UNIT_MASKED) { - dbus_set_error(e, BUS_ERROR_LOAD_FAILED, "Unit %s is not loaded properly.", unit->meta.id); + if (unit->load_state != UNIT_LOADED && + unit->load_state != UNIT_ERROR && + unit->load_state != UNIT_MASKED) { + dbus_set_error(e, BUS_ERROR_LOAD_FAILED, "Unit %s is not loaded properly.", unit->id); return -EINVAL; } - if (type != JOB_STOP && unit->meta.load_state == UNIT_ERROR) { + if (type != JOB_STOP && unit->load_state == UNIT_ERROR) { dbus_set_error(e, BUS_ERROR_LOAD_FAILED, "Unit %s failed to load: %s. " "See system logs and 'systemctl status %s' for details.", - unit->meta.id, - strerror(-unit->meta.load_error), - unit->meta.id); + unit->id, + strerror(-unit->load_error), + unit->id); return -EINVAL; } - if (type != JOB_STOP && unit->meta.load_state == UNIT_MASKED) { - dbus_set_error(e, BUS_ERROR_MASKED, "Unit %s is masked.", unit->meta.id); + if (type != JOB_STOP && unit->load_state == UNIT_MASKED) { + dbus_set_error(e, BUS_ERROR_MASKED, "Unit %s is masked.", unit->id); return -EINVAL; } if (!unit_job_is_applicable(unit, type)) { - dbus_set_error(e, BUS_ERROR_JOB_TYPE_NOT_APPLICABLE, "Job type %s is not applicable for unit %s.", job_type_to_string(type), unit->meta.id); + dbus_set_error(e, BUS_ERROR_JOB_TYPE_NOT_APPLICABLE, "Job type %s is not applicable for unit %s.", job_type_to_string(type), unit->id); return -EBADR; } @@ -1513,7 +1533,7 @@ static int transaction_add_job_and_dependencies( if (unit_following_set(ret->unit, &following) > 0) { SET_FOREACH(dep, following, i) if ((r = transaction_add_job_and_dependencies(m, type, dep, ret, false, override, false, false, ignore_order, e, NULL)) < 0) { - log_warning("Cannot add dependency job for unit %s, ignoring: %s", dep->meta.id, bus_error(e, r)); + log_warning("Cannot add dependency job for unit %s, ignoring: %s", dep->id, bus_error(e, r)); if (e) dbus_error_free(e); @@ -1524,7 +1544,7 @@ static int transaction_add_job_and_dependencies( /* Finally, recursively add in all dependencies. */ if (type == JOB_START || type == JOB_RELOAD_OR_START) { - SET_FOREACH(dep, ret->unit->meta.dependencies[UNIT_REQUIRES], i) + SET_FOREACH(dep, ret->unit->dependencies[UNIT_REQUIRES], i) if ((r = transaction_add_job_and_dependencies(m, JOB_START, dep, ret, true, override, false, false, ignore_order, e, NULL)) < 0) { if (r != -EBADR) goto fail; @@ -1533,7 +1553,7 @@ static int transaction_add_job_and_dependencies( dbus_error_free(e); } - SET_FOREACH(dep, ret->unit->meta.dependencies[UNIT_BIND_TO], i) + SET_FOREACH(dep, ret->unit->dependencies[UNIT_BIND_TO], i) if ((r = transaction_add_job_and_dependencies(m, JOB_START, dep, ret, true, override, false, false, ignore_order, e, NULL)) < 0) { if (r != -EBADR) @@ -1543,23 +1563,23 @@ static int transaction_add_job_and_dependencies( dbus_error_free(e); } - SET_FOREACH(dep, ret->unit->meta.dependencies[UNIT_REQUIRES_OVERRIDABLE], i) + SET_FOREACH(dep, ret->unit->dependencies[UNIT_REQUIRES_OVERRIDABLE], i) if ((r = transaction_add_job_and_dependencies(m, JOB_START, dep, ret, !override, override, false, false, ignore_order, e, NULL)) < 0) { - log_warning("Cannot add dependency job for unit %s, ignoring: %s", dep->meta.id, bus_error(e, r)); + log_warning("Cannot add dependency job for unit %s, ignoring: %s", dep->id, bus_error(e, r)); if (e) dbus_error_free(e); } - SET_FOREACH(dep, ret->unit->meta.dependencies[UNIT_WANTS], i) + SET_FOREACH(dep, ret->unit->dependencies[UNIT_WANTS], i) if ((r = transaction_add_job_and_dependencies(m, JOB_START, dep, ret, false, false, false, false, ignore_order, e, NULL)) < 0) { - log_warning("Cannot add dependency job for unit %s, ignoring: %s", dep->meta.id, bus_error(e, r)); + log_warning("Cannot add dependency job for unit %s, ignoring: %s", dep->id, bus_error(e, r)); if (e) dbus_error_free(e); } - SET_FOREACH(dep, ret->unit->meta.dependencies[UNIT_REQUISITE], i) + SET_FOREACH(dep, ret->unit->dependencies[UNIT_REQUISITE], i) if ((r = transaction_add_job_and_dependencies(m, JOB_VERIFY_ACTIVE, dep, ret, true, override, false, false, ignore_order, e, NULL)) < 0) { if (r != -EBADR) @@ -1569,15 +1589,15 @@ static int transaction_add_job_and_dependencies( dbus_error_free(e); } - SET_FOREACH(dep, ret->unit->meta.dependencies[UNIT_REQUISITE_OVERRIDABLE], i) + SET_FOREACH(dep, ret->unit->dependencies[UNIT_REQUISITE_OVERRIDABLE], i) if ((r = transaction_add_job_and_dependencies(m, JOB_VERIFY_ACTIVE, dep, ret, !override, override, false, false, ignore_order, e, NULL)) < 0) { - log_warning("Cannot add dependency job for unit %s, ignoring: %s", dep->meta.id, bus_error(e, r)); + log_warning("Cannot add dependency job for unit %s, ignoring: %s", dep->id, bus_error(e, r)); if (e) dbus_error_free(e); } - SET_FOREACH(dep, ret->unit->meta.dependencies[UNIT_CONFLICTS], i) + SET_FOREACH(dep, ret->unit->dependencies[UNIT_CONFLICTS], i) if ((r = transaction_add_job_and_dependencies(m, JOB_STOP, dep, ret, true, override, true, false, ignore_order, e, NULL)) < 0) { if (r != -EBADR) @@ -1587,17 +1607,19 @@ static int transaction_add_job_and_dependencies( dbus_error_free(e); } - SET_FOREACH(dep, ret->unit->meta.dependencies[UNIT_CONFLICTED_BY], i) + SET_FOREACH(dep, ret->unit->dependencies[UNIT_CONFLICTED_BY], i) if ((r = transaction_add_job_and_dependencies(m, JOB_STOP, dep, ret, false, override, false, false, ignore_order, e, NULL)) < 0) { - log_warning("Cannot add dependency job for unit %s, ignoring: %s", dep->meta.id, bus_error(e, r)); + log_warning("Cannot add dependency job for unit %s, ignoring: %s", dep->id, bus_error(e, r)); if (e) dbus_error_free(e); } - } else if (type == JOB_STOP || type == JOB_RESTART || type == JOB_TRY_RESTART) { + } + + if (type == JOB_STOP || type == JOB_RESTART || type == JOB_TRY_RESTART) { - SET_FOREACH(dep, ret->unit->meta.dependencies[UNIT_REQUIRED_BY], i) + SET_FOREACH(dep, ret->unit->dependencies[UNIT_REQUIRED_BY], i) if ((r = transaction_add_job_and_dependencies(m, type, dep, ret, true, override, false, false, ignore_order, e, NULL)) < 0) { if (r != -EBADR) @@ -1607,7 +1629,7 @@ static int transaction_add_job_and_dependencies( dbus_error_free(e); } - SET_FOREACH(dep, ret->unit->meta.dependencies[UNIT_BOUND_BY], i) + SET_FOREACH(dep, ret->unit->dependencies[UNIT_BOUND_BY], i) if ((r = transaction_add_job_and_dependencies(m, type, dep, ret, true, override, false, false, ignore_order, e, NULL)) < 0) { if (r != -EBADR) @@ -1618,6 +1640,20 @@ static int transaction_add_job_and_dependencies( } } + if (type == JOB_RELOAD || type == JOB_RELOAD_OR_START) { + + SET_FOREACH(dep, ret->unit->dependencies[UNIT_PROPAGATE_RELOAD_TO], i) { + r = transaction_add_job_and_dependencies(m, JOB_RELOAD, dep, ret, false, override, false, false, ignore_order, e, NULL); + + if (r < 0) { + log_warning("Cannot add dependency reload job for unit %s, ignoring: %s", dep->id, bus_error(e, r)); + + if (e) + dbus_error_free(e); + } + } + } + /* JOB_VERIFY_STARTED, JOB_RELOAD require no dependency handling */ } @@ -1641,14 +1677,14 @@ static int transaction_add_isolate_jobs(Manager *m) { HASHMAP_FOREACH_KEY(u, k, m->units, i) { /* ignore aliases */ - if (u->meta.id != k) + if (u->id != k) continue; - if (u->meta.ignore_on_isolate) + if (u->ignore_on_isolate) continue; /* No need to stop inactive jobs */ - if (UNIT_IS_INACTIVE_OR_FAILED(unit_active_state(u)) && !u->meta.job) + if (UNIT_IS_INACTIVE_OR_FAILED(unit_active_state(u)) && !u->job) continue; /* Is there already something listed for this? */ @@ -1656,7 +1692,7 @@ static int transaction_add_isolate_jobs(Manager *m) { continue; if ((r = transaction_add_job_and_dependencies(m, JOB_STOP, u, NULL, true, false, false, false, false, NULL, NULL)) < 0) - log_warning("Cannot add isolate job for unit %s, ignoring: %s", u->meta.id, strerror(-r)); + log_warning("Cannot add isolate job for unit %s, ignoring: %s", u->id, strerror(-r)); } return 0; @@ -1676,12 +1712,12 @@ int manager_add_job(Manager *m, JobType type, Unit *unit, JobMode mode, bool ove return -EINVAL; } - if (mode == JOB_ISOLATE && !unit->meta.allow_isolate) { + if (mode == JOB_ISOLATE && !unit->allow_isolate) { dbus_set_error(e, BUS_ERROR_NO_ISOLATION, "Operation refused, unit may not be isolated."); return -EPERM; } - log_debug("Trying to enqueue job %s/%s/%s", unit->meta.id, job_type_to_string(type), job_mode_to_string(mode)); + log_debug("Trying to enqueue job %s/%s/%s", unit->id, job_type_to_string(type), job_mode_to_string(mode)); if ((r = transaction_add_job_and_dependencies(m, type, unit, NULL, true, override, false, mode == JOB_IGNORE_DEPENDENCIES || mode == JOB_IGNORE_REQUIREMENTS, @@ -1699,7 +1735,7 @@ int manager_add_job(Manager *m, JobType type, Unit *unit, JobMode mode, bool ove if ((r = transaction_activate(m, mode, e)) < 0) return r; - log_debug("Enqueued job %s/%s as %u", unit->meta.id, job_type_to_string(type), (unsigned) ret->id); + log_debug("Enqueued job %s/%s as %u", unit->id, job_type_to_string(type), (unsigned) ret->id); if (_ret) *_ret = ret; @@ -1736,7 +1772,7 @@ Unit *manager_get_unit(Manager *m, const char *name) { } unsigned manager_dispatch_load_queue(Manager *m) { - Meta *meta; + Unit *u; unsigned n = 0; assert(m); @@ -1750,10 +1786,10 @@ unsigned manager_dispatch_load_queue(Manager *m) { /* Dispatches the load queue. Takes a unit from the queue and * tries to load its data until the queue is empty */ - while ((meta = m->load_queue)) { - assert(meta->in_load_queue); + while ((u = m->load_queue)) { + assert(u->in_load_queue); - unit_load((Unit*) meta); + unit_load(u); n++; } @@ -1763,6 +1799,7 @@ unsigned manager_dispatch_load_queue(Manager *m) { int manager_load_unit_prepare(Manager *m, const char *name, const char *path, DBusError *e, Unit **_ret) { Unit *ret; + UnitType t; int r; assert(m); @@ -1779,24 +1816,30 @@ int manager_load_unit_prepare(Manager *m, const char *name, const char *path, DB if (!name) name = file_name_from_path(path); - if (!unit_name_is_valid(name, false)) { + t = unit_name_to_type(name); + + if (t == _UNIT_TYPE_INVALID || !unit_name_is_valid_no_type(name, false)) { dbus_set_error(e, BUS_ERROR_INVALID_NAME, "Unit name %s is not valid.", name); return -EINVAL; } - if ((ret = manager_get_unit(m, name))) { + ret = manager_get_unit(m, name); + if (ret) { *_ret = ret; return 1; } - if (!(ret = unit_new(m))) + ret = unit_new(m, unit_vtable[t]->object_size); + if (!ret) return -ENOMEM; - if (path) - if (!(ret->meta.fragment_path = strdup(path))) { + if (path) { + ret->fragment_path = strdup(path); + if (!ret->fragment_path) { unit_free(ret); return -ENOMEM; } + } if ((r = unit_add_name(ret, name)) < 0) { unit_free(ret); @@ -1852,7 +1895,7 @@ void manager_dump_units(Manager *s, FILE *f, const char *prefix) { assert(f); HASHMAP_FOREACH_KEY(u, t, s->units, i) - if (u->meta.id == t) + if (u->id == t) unit_dump(u, f, prefix); } @@ -1890,7 +1933,7 @@ unsigned manager_dispatch_run_queue(Manager *m) { unsigned manager_dispatch_dbus_queue(Manager *m) { Job *j; - Meta *meta; + Unit *u; unsigned n = 0; assert(m); @@ -1900,10 +1943,10 @@ unsigned manager_dispatch_dbus_queue(Manager *m) { m->dispatching_dbus_queue = true; - while ((meta = m->dbus_unit_queue)) { - assert(meta->in_dbus_queue); + while ((u = m->dbus_unit_queue)) { + assert(u->in_dbus_queue); - bus_unit_send_change_signal((Unit*) meta); + bus_unit_send_change_signal(u); n++; } @@ -1977,7 +2020,7 @@ static int manager_process_notify_fd(Manager *m) { if (!(tags = strv_split(buf, "\n\r"))) return -ENOMEM; - log_debug("Got notification message for unit %s", u->meta.id); + log_debug("Got notification message for unit %s", u->id); if (UNIT_VTABLE(u)->notify_message) UNIT_VTABLE(u)->notify_message(u, ucred->pid, tags); @@ -2018,7 +2061,7 @@ static int manager_dispatch_sigchld(Manager *m) { if (si.si_code == CLD_EXITED || si.si_code == CLD_KILLED || si.si_code == CLD_DUMPED) { char *name = NULL; - get_process_name(si.si_pid, &name); + get_process_comm(si.si_pid, &name); log_debug("Got SIGCHLD for process %lu (%s)", (unsigned long) si.si_pid, strna(name)); free(name); } @@ -2056,7 +2099,7 @@ static int manager_dispatch_sigchld(Manager *m) { if (!u) continue; - log_debug("Child %lu belongs to %s", (long unsigned) si.si_pid, u->meta.id); + log_debug("Child %lu belongs to %s", (long unsigned) si.si_pid, u->id); hashmap_remove(m->watch_pids, LONG_TO_PTR(si.si_pid)); UNIT_VTABLE(u)->sigchld_event(u, si.si_pid, si.si_code, si.si_status); @@ -2103,14 +2146,14 @@ static int manager_process_signal_fd(Manager *m) { if (sfsi.ssi_pid > 0) { char *p = NULL; - get_process_name(sfsi.ssi_pid, &p); + get_process_comm(sfsi.ssi_pid, &p); log_debug("Received SIG%s from PID %lu (%s).", - strna(signal_to_string(sfsi.ssi_signo)), + signal_to_string(sfsi.ssi_signo), (unsigned long) sfsi.ssi_pid, strna(p)); free(p); } else - log_debug("Received SIG%s.", strna(signal_to_string(sfsi.ssi_signo))); + log_debug("Received SIG%s.", signal_to_string(sfsi.ssi_signo)); switch (sfsi.ssi_signo) { @@ -2228,8 +2271,9 @@ static int manager_process_signal_fd(Manager *m) { if ((int) sfsi.ssi_signo >= SIGRTMIN+0 && (int) sfsi.ssi_signo < SIGRTMIN+(int) ELEMENTSOF(target_table)) { - manager_start_target(m, target_table[sfsi.ssi_signo - SIGRTMIN], - (sfsi.ssi_signo == 1 || sfsi.ssi_signo == 2) ? JOB_ISOLATE : JOB_REPLACE); + int idx = (int) sfsi.ssi_signo - SIGRTMIN; + manager_start_target(m, target_table[idx], + (idx == 1 || idx == 2) ? JOB_ISOLATE : JOB_REPLACE); break; } @@ -2243,12 +2287,12 @@ static int manager_process_signal_fd(Manager *m) { case 20: log_debug("Enabling showing of status."); - m->show_status = true; + manager_set_show_status(m, true); break; case 21: log_debug("Disabling showing of status."); - m->show_status = false; + manager_set_show_status(m, false); break; case 22: @@ -2261,6 +2305,11 @@ static int manager_process_signal_fd(Manager *m) { log_notice("Setting log level to info."); break; + case 26: + log_set_target(LOG_TARGET_JOURNAL_OR_KMSG); + log_notice("Setting log target to journal-or-kmsg."); + break; + case 27: log_set_target(LOG_TARGET_CONSOLE); log_notice("Setting log target to console."); @@ -2277,7 +2326,7 @@ static int manager_process_signal_fd(Manager *m) { break; default: - log_warning("Got unhandled signal <%s>.", strna(signal_to_string(sfsi.ssi_signo))); + log_warning("Got unhandled signal <%s>.", signal_to_string(sfsi.ssi_signo)); } } } @@ -2385,6 +2434,7 @@ static int process_event(Manager *m, struct epoll_event *ev) { int manager_loop(Manager *m) { int r; + int wait_msec = -1; RATELIMIT_DEFINE(rl, 1*USEC_PER_SEC, 50000); @@ -2399,17 +2449,29 @@ int manager_loop(Manager *m) { /* There might still be some zombies hanging around from * before we were exec()'ed. Leat's reap them */ - if ((r = manager_dispatch_sigchld(m)) < 0) + r = manager_dispatch_sigchld(m); + if (r < 0) return r; + /* Sleep for half the watchdog time */ + if (m->runtime_watchdog > 0 && m->running_as == MANAGER_SYSTEM) { + wait_msec = (int) (m->runtime_watchdog / 2 / USEC_PER_MSEC); + if (wait_msec <= 0) + wait_msec = 1; + } + while (m->exit_code == MANAGER_RUNNING) { struct epoll_event event; int n; + if (wait_msec >= 0) + watchdog_ping(); + if (!ratelimit_test(&rl)) { /* Yay, something is going seriously wrong, pause a little */ log_warning("Looping too fast. Throttling execution a little."); sleep(1); + continue; } if (manager_dispatch_load_queue(m) > 0) @@ -2433,17 +2495,20 @@ int manager_loop(Manager *m) { if (swap_dispatch_reload(m) > 0) continue; - if ((n = epoll_wait(m->epoll_fd, &event, 1, -1)) < 0) { + n = epoll_wait(m->epoll_fd, &event, 1, wait_msec); + if (n < 0) { if (errno == EINTR) continue; return -errno; - } + } else if (n == 0) + continue; assert(n == 1); - if ((r = process_event(m, &event)) < 0) + r = process_event(m, &event); + if (r < 0) return r; } @@ -2514,10 +2579,10 @@ void manager_send_unit_audit(Manager *m, Unit *u, int type, bool success) { if (m->running_as != MANAGER_SYSTEM) return; - if (u->meta.type != UNIT_SERVICE) + if (u->type != UNIT_SERVICE) return; - if (!(p = unit_name_to_prefix_and_instance(u->meta.id))) { + if (!(p = unit_name_to_prefix_and_instance(u->id))) { log_error("Failed to allocate unit name for audit message: %s", strerror(ENOMEM)); return; } @@ -2555,9 +2620,9 @@ void manager_send_unit_plymouth(Manager *m, Unit *u) { if (m->running_as != MANAGER_SYSTEM) return; - if (u->meta.type != UNIT_SERVICE && - u->meta.type != UNIT_MOUNT && - u->meta.type != UNIT_SWAP) + if (u->type != UNIT_SERVICE && + u->type != UNIT_MOUNT && + u->type != UNIT_SWAP) return; /* We set SOCK_NONBLOCK here so that we rather drop the @@ -2583,7 +2648,7 @@ void manager_send_unit_plymouth(Manager *m, Unit *u) { goto finish; } - if (asprintf(&message, "U\002%c%s%n", (int) (strlen(u->meta.id) + 1), u->meta.id, &n) < 0) { + if (asprintf(&message, "U\002%c%s%n", (int) (strlen(u->id) + 1), u->id, &n) < 0) { log_error("Out of memory"); goto finish; } @@ -2703,14 +2768,14 @@ int manager_serialize(Manager *m, FILE *f, FDSet *fds) { fputc('\n', f); HASHMAP_FOREACH_KEY(u, t, m->units, i) { - if (u->meta.id != t) + if (u->id != t) continue; if (!unit_can_serialize(u)) continue; /* Start marker */ - fputs(u->meta.id, f); + fputs(u->id, f); fputc('\n', f); if ((r = unit_serialize(u, f, fds)) < 0) { @@ -2895,12 +2960,13 @@ bool manager_is_booting_or_shutting_down(Manager *m) { assert(m); /* Is the initial job still around? */ - if (manager_get_job(m, 1)) + if (manager_get_job(m, m->default_unit_job_id)) return true; /* Is there a job for the shutdown target? */ - if (((u = manager_get_unit(m, SPECIAL_SHUTDOWN_TARGET)))) - return !!u->meta.job; + u = manager_get_unit(m, SPECIAL_SHUTDOWN_TARGET); + if (u) + return !!u->job; return false; } @@ -2985,6 +3051,7 @@ void manager_run_generators(Manager *m) { DIR *d = NULL; const char *generator_path; const char *argv[3]; + mode_t u; assert(m); @@ -3027,7 +3094,9 @@ void manager_run_generators(Manager *m) { argv[1] = m->generator_unit_path; argv[2] = NULL; + u = umask(0022); execute_directory(generator_path, d, (char**) argv); + umask(u); if (rmdir(m->generator_unit_path) >= 0) { /* Uh? we were able to remove this dir? I guess that @@ -3065,7 +3134,7 @@ void manager_undo_generators(Manager *m) { return; strv_remove(m->lookup_paths.unit_path, m->generator_unit_path); - rm_rf(m->generator_unit_path, false, true); + rm_rf(m->generator_unit_path, false, true, false); free(m->generator_unit_path); m->generator_unit_path = NULL; @@ -3085,7 +3154,7 @@ int manager_set_default_controllers(Manager *m, char **controllers) { return 0; } -void manager_recheck_syslog(Manager *m) { +void manager_recheck_journal(Manager *m) { Unit *u; assert(m); @@ -3093,37 +3162,50 @@ void manager_recheck_syslog(Manager *m) { if (m->running_as != MANAGER_SYSTEM) return; - if ((u = manager_get_unit(m, SPECIAL_SYSLOG_SOCKET))) { - SocketState state; + u = manager_get_unit(m, SPECIAL_JOURNALD_SOCKET); + if (u && SOCKET(u)->state != SOCKET_RUNNING) { + log_close_journal(); + return; + } - state = SOCKET(u)->state; + u = manager_get_unit(m, SPECIAL_JOURNALD_SERVICE); + if (u && SERVICE(u)->state != SERVICE_RUNNING) { + log_close_journal(); + return; + } - if (state != SOCKET_DEAD && - state != SOCKET_FAILED && - state != SOCKET_RUNNING) { + /* Hmm, OK, so the socket is fully up and the service is up + * too, then let's make use of the thing. */ + log_open(); +} - /* Hmm, the socket is not set up, or is still - * listening, let's better not try to use - * it. Note that we have no problem if the - * socket is completely down, since there - * might be a foreign /dev/log socket around - * and we want to make use of that. - */ +void manager_set_show_status(Manager *m, bool b) { + assert(m); - log_close_syslog(); - return; - } - } + if (m->running_as != MANAGER_SYSTEM) + return; - if ((u = manager_get_unit(m, SPECIAL_SYSLOG_TARGET))) - if (TARGET(u)->state != TARGET_ACTIVE) { - log_close_syslog(); - return; - } + m->show_status = b; - /* Hmm, OK, so the socket is either fully up, or fully down, - * and the target is up, then let's make use of the socket */ - log_open(); + if (b) + touch("/run/systemd/show-status"); + else + unlink("/run/systemd/show-status"); +} + +bool manager_get_show_status(Manager *m) { + assert(m); + + if (m->running_as != MANAGER_SYSTEM) + return false; + + if (m->show_status) + return true; + + /* If Plymouth is running make sure we show the status, so + * that there's something nice to see when people press Esc */ + + return plymouth_running(); } static const char* const manager_running_as_table[_MANAGER_RUNNING_AS_MAX] = {