src/core/busname.c

	busname.c revision 4f10118016f9b2fd7e1d26c9ef7d91eb33fba694
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering/***
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering  This file is part of systemd.
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering  Copyright 2013 Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering  systemd is free software; you can redistribute it and/or modify it
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering  under the terms of the GNU Lesser General Public License as published by
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering  the Free Software Foundation; either version 2.1 of the License, or
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering  (at your option) any later version.
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering  systemd is distributed in the hope that it will be useful, but
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering  WITHOUT ANY WARRANTY; without even the implied warranty of
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering  Lesser General Public License for more details.
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering  You should have received a copy of the GNU Lesser General Public License
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering  along with systemd; If not, see <http://www.gnu.org/licenses/>.
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering***/
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
07630cea1f3a845c09309f197ac7c4f11edd3b62Lennart Poettering#include "special.h"
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering#include "bus-kernel.h"
07630cea1f3a845c09309f197ac7c4f11edd3b62Lennart Poettering#include "bus-internal.h"
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering#include "bus-util.h"
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering#include "service.h"
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering#include "dbus-busname.h"
07630cea1f3a845c09309f197ac7c4f11edd3b62Lennart Poettering#include "busname.h"
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poetteringstatic const UnitActiveState state_translation_table[_BUSNAME_STATE_MAX] = {
07630cea1f3a845c09309f197ac7c4f11edd3b62Lennart Poettering        [BUSNAME_DEAD] = UNIT_INACTIVE,
07630cea1f3a845c09309f197ac7c4f11edd3b62Lennart Poettering        [BUSNAME_REGISTERED] = UNIT_ACTIVE,
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        [BUSNAME_LISTENING] = UNIT_ACTIVE,
3ffd4af22052963e7a29431721ee204e634bea75Lennart Poettering        [BUSNAME_RUNNING] = UNIT_ACTIVE,
07630cea1f3a845c09309f197ac7c4f11edd3b62Lennart Poettering        [BUSNAME_FAILED] = UNIT_FAILED
07630cea1f3a845c09309f197ac7c4f11edd3b62Lennart Poettering};
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
9bf3b53533cdc9b95c921b71da755401f223f765Lennart Poetteringstatic int busname_dispatch_io(sd_event_source *source, int fd, uint32_t revents, void *userdata);
07630cea1f3a845c09309f197ac7c4f11edd3b62Lennart Poettering
07630cea1f3a845c09309f197ac7c4f11edd3b62Lennart Poetteringstatic void busname_init(Unit *u) {
07630cea1f3a845c09309f197ac7c4f11edd3b62Lennart Poettering        BusName *n = BUSNAME(u);
07630cea1f3a845c09309f197ac7c4f11edd3b62Lennart Poettering
07630cea1f3a845c09309f197ac7c4f11edd3b62Lennart Poettering        assert(u);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        assert(u->load_state == UNIT_STUB);
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        n->starter_fd = -1;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        n->accept_fd = true;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        n->activating = true;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering}
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poetteringstatic void busname_done(Unit *u) {
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        BusName *n = BUSNAME(u);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        assert(u);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        free(n->name);
83f6936a018b08880670838756e0f4e9ea98b4a7Lennart Poettering        n->name = NULL;
83f6936a018b08880670838756e0f4e9ea98b4a7Lennart Poettering
83f6936a018b08880670838756e0f4e9ea98b4a7Lennart Poettering        unit_ref_unset(&n->service);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        n->event_source = sd_event_source_unref(n->event_source);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        n->starter_fd = safe_close(n->starter_fd);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering}
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
83f6936a018b08880670838756e0f4e9ea98b4a7Lennart Poetteringstatic int busname_add_default_default_dependencies(BusName *n) {
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        int r;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
b826ab586c9e0a9c0d438a75c28cf3a8ab485929Tom Gundersen        assert(n);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        r = unit_add_dependency_by_name(UNIT(n), UNIT_BEFORE, SPECIAL_BUSNAMES_TARGET, NULL, true);
b826ab586c9e0a9c0d438a75c28cf3a8ab485929Tom Gundersen        if (r < 0)
b826ab586c9e0a9c0d438a75c28cf3a8ab485929Tom Gundersen                return r;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        if (UNIT(n)->manager->running_as == SYSTEMD_SYSTEM) {
d5099efc47d4e6ac60816b5381a5f607ab03f06eMichal Schmidt                r = unit_add_two_dependencies_by_name(UNIT(n), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_SYSINIT_TARGET, NULL, true);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                if (r < 0)
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                        return r;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        }
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        return unit_add_two_dependencies_by_name(UNIT(n), UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering}
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poetteringstatic int busname_add_extras(BusName *n) {
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        Unit *u = UNIT(n);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        int r;
18cd5fe99f70a55a2d6f2303d6ee0624942695b1Zbigniew Jędrzejewski-Szmek
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        assert(n);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d5099efc47d4e6ac60816b5381a5f607ab03f06eMichal Schmidt        if (!n->name) {
d5099efc47d4e6ac60816b5381a5f607ab03f06eMichal Schmidt                n->name = unit_name_to_prefix(u->id);
d5099efc47d4e6ac60816b5381a5f607ab03f06eMichal Schmidt                if (!n->name)
d5099efc47d4e6ac60816b5381a5f607ab03f06eMichal Schmidt                        return -ENOMEM;
d5099efc47d4e6ac60816b5381a5f607ab03f06eMichal Schmidt        }
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        if (!u->description) {
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                r = unit_set_description(u, n->name);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                if (r < 0)
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                        return r;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        }
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        if (n->activating) {
e3b9d9c8027a7c4c55cf1614e0fe9423fad69e8fZbigniew Jędrzejewski-Szmek                if (!UNIT_DEREF(n->service)) {
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                        Unit *x;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                        r = unit_load_related_unit(u, ".service", &x);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                        if (r < 0)
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                                return r;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                        unit_ref_set(&n->service, x);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                }
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                r = unit_add_two_dependencies(u, UNIT_BEFORE, UNIT_TRIGGERS, UNIT_DEREF(n->service), true);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                if (r < 0)
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                        return r;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        }
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        if (u->default_dependencies) {
c7332b0844e28d9b70c3c763b929f105c1056fe8Zbigniew Jędrzejewski-Szmek                r = busname_add_default_default_dependencies(n);
c7332b0844e28d9b70c3c763b929f105c1056fe8Zbigniew Jędrzejewski-Szmek                if (r < 0)
c7332b0844e28d9b70c3c763b929f105c1056fe8Zbigniew Jędrzejewski-Szmek                        return r;
c7332b0844e28d9b70c3c763b929f105c1056fe8Zbigniew Jędrzejewski-Szmek        }
83f6936a018b08880670838756e0f4e9ea98b4a7Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        return 0;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering}
e3b9d9c8027a7c4c55cf1614e0fe9423fad69e8fZbigniew Jędrzejewski-Szmek
18cd5fe99f70a55a2d6f2303d6ee0624942695b1Zbigniew Jędrzejewski-Szmekstatic int busname_verify(BusName *n) {
18cd5fe99f70a55a2d6f2303d6ee0624942695b1Zbigniew Jędrzejewski-Szmek        char *e;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
e3b9d9c8027a7c4c55cf1614e0fe9423fad69e8fZbigniew Jędrzejewski-Szmek        assert(n);
e3b9d9c8027a7c4c55cf1614e0fe9423fad69e8fZbigniew Jędrzejewski-Szmek
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        if (UNIT(n)->load_state != UNIT_LOADED)
e3b9d9c8027a7c4c55cf1614e0fe9423fad69e8fZbigniew Jędrzejewski-Szmek                return 0;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        if (!service_name_is_valid(n->name)) {
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                log_error_unit(UNIT(n)->id, "%s's Name= setting is not a valid service name Refusing.", UNIT(n)->id);
c7332b0844e28d9b70c3c763b929f105c1056fe8Zbigniew Jędrzejewski-Szmek                return -EINVAL;
c7332b0844e28d9b70c3c763b929f105c1056fe8Zbigniew Jędrzejewski-Szmek        }
c7332b0844e28d9b70c3c763b929f105c1056fe8Zbigniew Jędrzejewski-Szmek
c7332b0844e28d9b70c3c763b929f105c1056fe8Zbigniew Jędrzejewski-Szmek        e = strappenda(n->name, ".busname");
c7332b0844e28d9b70c3c763b929f105c1056fe8Zbigniew Jędrzejewski-Szmek        if (!unit_has_name(UNIT(n), e)) {
c7332b0844e28d9b70c3c763b929f105c1056fe8Zbigniew Jędrzejewski-Szmek                log_error_unit(UNIT(n)->id, "%s's Name= setting doesn't match unit name. Refusing.", UNIT(n)->id);
c7332b0844e28d9b70c3c763b929f105c1056fe8Zbigniew Jędrzejewski-Szmek                return -EINVAL;
c7332b0844e28d9b70c3c763b929f105c1056fe8Zbigniew Jędrzejewski-Szmek        }
4b8268f843b0da1cfe1995d93a0b1f95faccc454Zbigniew Jędrzejewski-Szmek
c7332b0844e28d9b70c3c763b929f105c1056fe8Zbigniew Jędrzejewski-Szmek        return 0;
c7332b0844e28d9b70c3c763b929f105c1056fe8Zbigniew Jędrzejewski-Szmek}
4b8268f843b0da1cfe1995d93a0b1f95faccc454Zbigniew Jędrzejewski-Szmek
c7332b0844e28d9b70c3c763b929f105c1056fe8Zbigniew Jędrzejewski-Szmekstatic int busname_load(Unit *u) {
c7332b0844e28d9b70c3c763b929f105c1056fe8Zbigniew Jędrzejewski-Szmek        BusName *n = BUSNAME(u);
c7332b0844e28d9b70c3c763b929f105c1056fe8Zbigniew Jędrzejewski-Szmek        int r;
c7332b0844e28d9b70c3c763b929f105c1056fe8Zbigniew Jędrzejewski-Szmek
c7332b0844e28d9b70c3c763b929f105c1056fe8Zbigniew Jędrzejewski-Szmek        assert(u);
c7332b0844e28d9b70c3c763b929f105c1056fe8Zbigniew Jędrzejewski-Szmek        assert(u->load_state == UNIT_STUB);
c7332b0844e28d9b70c3c763b929f105c1056fe8Zbigniew Jędrzejewski-Szmek
c7332b0844e28d9b70c3c763b929f105c1056fe8Zbigniew Jędrzejewski-Szmek        r = unit_load_fragment_and_dropin(u);
c7332b0844e28d9b70c3c763b929f105c1056fe8Zbigniew Jędrzejewski-Szmek        if (r < 0)
c7332b0844e28d9b70c3c763b929f105c1056fe8Zbigniew Jędrzejewski-Szmek                return r;
baf167ee0a2953f98e4e7d4c35752ef737832674Zbigniew Jędrzejewski-Szmek
baf167ee0a2953f98e4e7d4c35752ef737832674Zbigniew Jędrzejewski-Szmek        if (u->load_state == UNIT_LOADED) {
baf167ee0a2953f98e4e7d4c35752ef737832674Zbigniew Jędrzejewski-Szmek                /* This is a new unit? Then let's add in some extras */
baf167ee0a2953f98e4e7d4c35752ef737832674Zbigniew Jędrzejewski-Szmek                r = busname_add_extras(n);
baf167ee0a2953f98e4e7d4c35752ef737832674Zbigniew Jędrzejewski-Szmek                if (r < 0)
baf167ee0a2953f98e4e7d4c35752ef737832674Zbigniew Jędrzejewski-Szmek                        return r;
baf167ee0a2953f98e4e7d4c35752ef737832674Zbigniew Jędrzejewski-Szmek        }
baf167ee0a2953f98e4e7d4c35752ef737832674Zbigniew Jędrzejewski-Szmek
baf167ee0a2953f98e4e7d4c35752ef737832674Zbigniew Jędrzejewski-Szmek        return busname_verify(n);
baf167ee0a2953f98e4e7d4c35752ef737832674Zbigniew Jędrzejewski-Szmek}
baf167ee0a2953f98e4e7d4c35752ef737832674Zbigniew Jędrzejewski-Szmek
baf167ee0a2953f98e4e7d4c35752ef737832674Zbigniew Jędrzejewski-Szmekstatic void busname_dump(Unit *u, FILE *f, const char *prefix) {
baf167ee0a2953f98e4e7d4c35752ef737832674Zbigniew Jędrzejewski-Szmek        BusName *n = BUSNAME(u);
baf167ee0a2953f98e4e7d4c35752ef737832674Zbigniew Jędrzejewski-Szmek
baf167ee0a2953f98e4e7d4c35752ef737832674Zbigniew Jędrzejewski-Szmek        assert(n);
baf167ee0a2953f98e4e7d4c35752ef737832674Zbigniew Jędrzejewski-Szmek        assert(f);
baf167ee0a2953f98e4e7d4c35752ef737832674Zbigniew Jędrzejewski-Szmek
baf167ee0a2953f98e4e7d4c35752ef737832674Zbigniew Jędrzejewski-Szmek        fprintf(f,
baf167ee0a2953f98e4e7d4c35752ef737832674Zbigniew Jędrzejewski-Szmek                "%sBus Name State: %s\n"
baf167ee0a2953f98e4e7d4c35752ef737832674Zbigniew Jędrzejewski-Szmek                "%sResult: %s\n"
baf167ee0a2953f98e4e7d4c35752ef737832674Zbigniew Jędrzejewski-Szmek                "%sName: %s\n"
baf167ee0a2953f98e4e7d4c35752ef737832674Zbigniew Jędrzejewski-Szmek                "%sActivating: %s\n"
baf167ee0a2953f98e4e7d4c35752ef737832674Zbigniew Jędrzejewski-Szmek                "%sAccept FD: %s\n",
baf167ee0a2953f98e4e7d4c35752ef737832674Zbigniew Jędrzejewski-Szmek                prefix, busname_state_to_string(n->state),
baf167ee0a2953f98e4e7d4c35752ef737832674Zbigniew Jędrzejewski-Szmek                prefix, busname_result_to_string(n->result),
baf167ee0a2953f98e4e7d4c35752ef737832674Zbigniew Jędrzejewski-Szmek                prefix, n->name,
baf167ee0a2953f98e4e7d4c35752ef737832674Zbigniew Jędrzejewski-Szmek                prefix, yes_no(n->activating),
baf167ee0a2953f98e4e7d4c35752ef737832674Zbigniew Jędrzejewski-Szmek                prefix, yes_no(n->accept_fd));
baf167ee0a2953f98e4e7d4c35752ef737832674Zbigniew Jędrzejewski-Szmek}
baf167ee0a2953f98e4e7d4c35752ef737832674Zbigniew Jędrzejewski-Szmek
baf167ee0a2953f98e4e7d4c35752ef737832674Zbigniew Jędrzejewski-Szmekstatic void busname_unwatch_fd(BusName *n) {
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek        int r;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        assert(n);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        if (n->event_source) {
c7332b0844e28d9b70c3c763b929f105c1056fe8Zbigniew Jędrzejewski-Szmek                r = sd_event_source_set_enabled(n->event_source, SD_EVENT_OFF);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                if (r < 0)
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                        log_debug_unit(UNIT(n)->id, "Failed to disable event source.");
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        }
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering}
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poetteringstatic void busname_close_fd(BusName *n) {
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        assert(n);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
4a62c710b62a5a3c7a8a278b810b9d5b5a0c8f4fMichal Schmidt        busname_unwatch_fd(n);
4a62c710b62a5a3c7a8a278b810b9d5b5a0c8f4fMichal Schmidt
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        if (n->starter_fd <= 0)
c7332b0844e28d9b70c3c763b929f105c1056fe8Zbigniew Jędrzejewski-Szmek                return;
c7332b0844e28d9b70c3c763b929f105c1056fe8Zbigniew Jędrzejewski-Szmek
56f64d95763a799ba4475daf44d8e9f72a1bd474Michal Schmidt        n->starter_fd = safe_close(n->starter_fd);
c7332b0844e28d9b70c3c763b929f105c1056fe8Zbigniew Jędrzejewski-Szmek}
c7332b0844e28d9b70c3c763b929f105c1056fe8Zbigniew Jędrzejewski-Szmek
c7332b0844e28d9b70c3c763b929f105c1056fe8Zbigniew Jędrzejewski-Szmekstatic int busname_watch_fd(BusName *n) {
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        int r;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        assert(n);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        if (n->starter_fd < 0)
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                return 0;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        if (n->event_source)
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                r = sd_event_source_set_enabled(n->event_source, SD_EVENT_ON);
56f64d95763a799ba4475daf44d8e9f72a1bd474Michal Schmidt        else
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                r = sd_event_add_io(UNIT(n)->manager->event, &n->event_source, n->starter_fd, EPOLLIN, busname_dispatch_io, n);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        if (r < 0) {
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                log_warning_unit(UNIT(n)->id, "Failed to watch starter fd: %s", strerror(-r));
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                busname_unwatch_fd(n);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                return r;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        }
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        return 0;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering}
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poetteringstatic int busname_open_fd(BusName *n) {
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        assert(n);
d3b6d0c21ea5a0d15ec6dbd8b8d179138b7463bcZbigniew Jędrzejewski-Szmek
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        if (n->starter_fd >= 0)
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                return 0;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        n->starter_fd = bus_kernel_create_starter(
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                        UNIT(n)->manager->running_as == SYSTEMD_SYSTEM ? "system" : "user",
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                        n->name, n->activating, n->accept_fd, n->policy);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
18cd5fe99f70a55a2d6f2303d6ee0624942695b1Zbigniew Jędrzejewski-Szmek        if (n->starter_fd < 0) {
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                log_warning_unit(UNIT(n)->id, "Failed to create starter fd: %s", strerror(-n->starter_fd));
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                return n->starter_fd;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        }
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        return 0;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering}
18cd5fe99f70a55a2d6f2303d6ee0624942695b1Zbigniew Jędrzejewski-Szmek
18cd5fe99f70a55a2d6f2303d6ee0624942695b1Zbigniew Jędrzejewski-Szmekstatic void busname_set_state(BusName *n, BusNameState state) {
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        BusNameState old_state;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        assert(n);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        old_state = n->state;
c7332b0844e28d9b70c3c763b929f105c1056fe8Zbigniew Jędrzejewski-Szmek        n->state = state;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        if (state != BUSNAME_LISTENING)
c7332b0844e28d9b70c3c763b929f105c1056fe8Zbigniew Jędrzejewski-Szmek                busname_unwatch_fd(n);
97b11eedff9d2e17101ad453caf9e48b73246719David Herrmann
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        if (!IN_SET(state, BUSNAME_LISTENING, BUSNAME_REGISTERED, BUSNAME_RUNNING))
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                busname_close_fd(n);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        if (state != old_state)
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                log_debug_unit(UNIT(n)->id, "%s changed %s -> %s",
baf167ee0a2953f98e4e7d4c35752ef737832674Zbigniew Jędrzejewski-Szmek                               UNIT(n)->id, busname_state_to_string(old_state), busname_state_to_string(state));
baf167ee0a2953f98e4e7d4c35752ef737832674Zbigniew Jędrzejewski-Szmek
baf167ee0a2953f98e4e7d4c35752ef737832674Zbigniew Jędrzejewski-Szmek        unit_notify(UNIT(n), state_translation_table[old_state], state_translation_table[state], true);
c7332b0844e28d9b70c3c763b929f105c1056fe8Zbigniew Jędrzejewski-Szmek}
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poetteringstatic int busname_coldplug(Unit *u) {
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        BusName *n = BUSNAME(u);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        int r;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        assert(n);
18cd5fe99f70a55a2d6f2303d6ee0624942695b1Zbigniew Jędrzejewski-Szmek        assert(n->state == BUSNAME_DEAD);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        if (n->deserialized_state == n->state)
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                return 0;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        if (IN_SET(n->deserialized_state, BUSNAME_LISTENING, BUSNAME_REGISTERED, BUSNAME_RUNNING)) {
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                r = busname_open_fd(n);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                if (r < 0)
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                        return r;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        }
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        if (n->deserialized_state == BUSNAME_LISTENING) {
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                r = busname_watch_fd(n);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                if (r < 0)
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                        return r;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        }
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        busname_set_state(n, n->deserialized_state);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        return 0;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering}
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poetteringstatic void busname_enter_dead(BusName *n, BusNameResult f) {
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        assert(n);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        if (f != BUSNAME_SUCCESS)
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                n->result = f;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        busname_set_state(n, n->result != BUSNAME_SUCCESS ? BUSNAME_FAILED : BUSNAME_DEAD);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering}
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poetteringstatic void busname_enter_listening(BusName *n) {
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        int r;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        assert(n);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        r = busname_open_fd(n);
c7332b0844e28d9b70c3c763b929f105c1056fe8Zbigniew Jędrzejewski-Szmek        if (r < 0) {
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                log_warning_unit(UNIT(n)->id, "%s failed to %s: %s", UNIT(n)->id,
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                                 n->activating ? "listen on bus name" : "register policy for name",
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                                 strerror(-r));
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                goto fail;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        }
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        if (n->activating) {
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek                r = busname_watch_fd(n);
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek                if (r < 0) {
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek                        log_warning_unit(UNIT(n)->id, "%s failed to watch names: %s", UNIT(n)->id, strerror(-r));
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek                        goto fail;
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek                }
7fd1b19bc9e9f5574f2877936b8ac267c7706947Harald Hoyer
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek                busname_set_state(n, BUSNAME_LISTENING);
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek        } else
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek                busname_set_state(n, BUSNAME_REGISTERED);
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek        return;
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmekfail:
eb56eb9b40950f1edcffdb7313f8de4f8572a6d5Michal Schmidt        busname_enter_dead(n, BUSNAME_FAILURE_RESOURCES);
eb56eb9b40950f1edcffdb7313f8de4f8572a6d5Michal Schmidt}
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmekstatic void busname_enter_running(BusName *n) {
eb56eb9b40950f1edcffdb7313f8de4f8572a6d5Michal Schmidt        _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
eb56eb9b40950f1edcffdb7313f8de4f8572a6d5Michal Schmidt        bool pending = false;
eb56eb9b40950f1edcffdb7313f8de4f8572a6d5Michal Schmidt        Unit *other;
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek        Iterator i;
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek        int r;
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek        assert(n);
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek        if (!n->activating)
80343dc19a9bcd703275ad2ad88f43e5310559d6Zbigniew Jędrzejewski-Szmek                return;
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek        /* We don't take conenctions anymore if we are supposed to
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek         * shut down anyway */
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek        if (unit_stop_pending(UNIT(n))) {
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek                log_debug_unit(UNIT(n)->id, "Suppressing activation request on %s since unit stop is scheduled.", UNIT(n)->id);
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek                /* Flush all queued activation reqeuest by closing and reopening the connection */
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek                bus_kernel_drop_one(n->starter_fd);
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek                busname_enter_listening(n);
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek                return;
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek        }
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek        /* If there's already a start pending don't bother to do
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek         * anything */
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek        SET_FOREACH(other, UNIT(n)->dependencies[UNIT_TRIGGERS], i)
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek                if (unit_active_or_pending(other)) {
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek                        pending = true;
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek                        break;
dacd6cee76a08331b8c8616c5f30f70ee49aa2f9Lennart Poettering                }
dacd6cee76a08331b8c8616c5f30f70ee49aa2f9Lennart Poettering
dacd6cee76a08331b8c8616c5f30f70ee49aa2f9Lennart Poettering        if (!pending) {
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek                r = manager_add_job(UNIT(n)->manager, JOB_START, UNIT_DEREF(n->service), JOB_REPLACE, true, &error, NULL);
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek                if (r < 0)
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek                        goto fail;
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek        }
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek        busname_set_state(n, BUSNAME_RUNNING);
dacd6cee76a08331b8c8616c5f30f70ee49aa2f9Lennart Poettering        return;
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmekfail:
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek        log_warning_unit(UNIT(n)->id, "%s failed to queue service startup job: %s", UNIT(n)->id, bus_error_message(&error, r));
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek        busname_enter_dead(n, BUSNAME_FAILURE_RESOURCES);
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek}
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek
dacd6cee76a08331b8c8616c5f30f70ee49aa2f9Lennart Poetteringstatic int busname_start(Unit *u) {
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek        BusName *n = BUSNAME(u);
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek        assert(n);
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        if (n->activating && UNIT_ISSET(n->service)) {
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                Service *service;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
e3b9d9c8027a7c4c55cf1614e0fe9423fad69e8fZbigniew Jędrzejewski-Szmek                service = SERVICE(UNIT_DEREF(n->service));
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                if (UNIT(service)->load_state != UNIT_LOADED) {
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                        log_error_unit(u->id, "Bus service %s not loaded, refusing.", UNIT(service)->id);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                        return -ENOENT;
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek                }
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        }
d5099efc47d4e6ac60816b5381a5f607ab03f06eMichal Schmidt
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        assert(IN_SET(n->state, BUSNAME_DEAD, BUSNAME_FAILED));
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek        n->result = BUSNAME_SUCCESS;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        busname_enter_listening(n);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        return 0;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering}
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek
d4205751d4643c272059a3728045929dd0e5e800Lennart Poetteringstatic int busname_stop(Unit *u) {
da927ba997d68401563b927f92e6e40e021a8e5cMichal Schmidt        BusName *n = BUSNAME(u);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        assert(n);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        assert(IN_SET(n->state, BUSNAME_REGISTERED, BUSNAME_LISTENING, BUSNAME_RUNNING));
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
e3b9d9c8027a7c4c55cf1614e0fe9423fad69e8fZbigniew Jędrzejewski-Szmek        busname_enter_dead(n, BUSNAME_SUCCESS);
e3b9d9c8027a7c4c55cf1614e0fe9423fad69e8fZbigniew Jędrzejewski-Szmek        return 0;
e3b9d9c8027a7c4c55cf1614e0fe9423fad69e8fZbigniew Jędrzejewski-Szmek}
e53fc357a9bb9d0a5362ccc4246d598cb0febd5eLennart Poettering
e3b9d9c8027a7c4c55cf1614e0fe9423fad69e8fZbigniew Jędrzejewski-Szmekstatic int busname_serialize(Unit *u, FILE *f, FDSet *fds) {
e3b9d9c8027a7c4c55cf1614e0fe9423fad69e8fZbigniew Jędrzejewski-Szmek        BusName *n = BUSNAME(u);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        assert(n);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        assert(f);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        assert(fds);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
80343dc19a9bcd703275ad2ad88f43e5310559d6Zbigniew Jędrzejewski-Szmek        unit_serialize_item(u, f, "state", busname_state_to_string(n->state));
80343dc19a9bcd703275ad2ad88f43e5310559d6Zbigniew Jędrzejewski-Szmek        unit_serialize_item(u, f, "result", busname_result_to_string(n->result));
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        if (n->starter_fd >= 0) {
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                int copy;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                copy = fdset_put_dup(fds, n->starter_fd);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                if (copy < 0)
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                        return copy;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                unit_serialize_item_format(u, f, "starter-fd", "%i", copy);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        }
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
18cd5fe99f70a55a2d6f2303d6ee0624942695b1Zbigniew Jędrzejewski-Szmek        return 0;
18cd5fe99f70a55a2d6f2303d6ee0624942695b1Zbigniew Jędrzejewski-Szmek}
18cd5fe99f70a55a2d6f2303d6ee0624942695b1Zbigniew Jędrzejewski-Szmek
d4205751d4643c272059a3728045929dd0e5e800Lennart Poetteringstatic int busname_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) {
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        BusName *n = BUSNAME(u);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        assert(n);
7ff7394d9e4e9189c30fd018235e6b1728c6f2d0Zbigniew Jędrzejewski-Szmek        assert(key);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        assert(value);
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek        if (streq(key, "state")) {
da927ba997d68401563b927f92e6e40e021a8e5cMichal Schmidt                BusNameState state;
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek                state = busname_state_from_string(value);
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek                if (state < 0)
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                        log_debug_unit(u->id, "Failed to parse state value %s", value);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                else
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                        n->deserialized_state = state;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        } else if (streq(key, "result")) {
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek                BusNameResult f;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                f = busname_result_from_string(value);
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek                if (f < 0)
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                        log_debug_unit(u->id, "Failed to parse result value %s", value);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                else if (f != BUSNAME_SUCCESS)
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                        n->result = f;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        } else if (streq(key, "starter-fd")) {
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                int fd;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                        log_debug_unit(u->id, "Failed to parse starter fd value %s", value);
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek                else {
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                        safe_close(n->starter_fd);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                        n->starter_fd = fdset_remove(fds, fd);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                }
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        } else
03e334a1c7dc8c20c38902aa039440763acc9b17Lennart Poettering                log_debug_unit(u->id, "Unknown serialization key '%s'", key);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        return 0;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering}
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
03e334a1c7dc8c20c38902aa039440763acc9b17Lennart Poettering_pure_ static UnitActiveState busname_active_state(Unit *u) {
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        assert(u);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        return state_translation_table[BUSNAME(u)->state];
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering}
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
03e334a1c7dc8c20c38902aa039440763acc9b17Lennart Poettering_pure_ static const char *busname_sub_state_to_string(Unit *u) {
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        assert(u);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        return busname_state_to_string(BUSNAME(u)->state);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering}
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
83f6936a018b08880670838756e0f4e9ea98b4a7Lennart Poetteringstatic int busname_dispatch_io(sd_event_source *source, int fd, uint32_t revents, void *userdata) {
83f6936a018b08880670838756e0f4e9ea98b4a7Lennart Poettering        BusName *n = userdata;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
83f6936a018b08880670838756e0f4e9ea98b4a7Lennart Poettering        assert(n);
83f6936a018b08880670838756e0f4e9ea98b4a7Lennart Poettering        assert(fd >= 0);
03e334a1c7dc8c20c38902aa039440763acc9b17Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        if (n->state != BUSNAME_LISTENING)
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                return 0;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        log_debug_unit(UNIT(n)->id, "Activation request on %s", UNIT(n)->id);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        if (revents != EPOLLIN) {
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                log_error_unit(UNIT(n)->id, "%s: Got unexpected poll event (0x%x) on starter fd.",
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                               UNIT(n)->id, revents);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                goto fail;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        }
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        busname_enter_running(n);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        return 0;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poetteringfail:
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        busname_enter_dead(n, BUSNAME_FAILURE_RESOURCES);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        return 0;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering}
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poetteringstatic void busname_reset_failed(Unit *u) {
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        BusName *n = BUSNAME(u);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        assert(n);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
83f6936a018b08880670838756e0f4e9ea98b4a7Lennart Poettering        if (n->state == BUSNAME_FAILED)
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                busname_set_state(n, BUSNAME_DEAD);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        n->result = BUSNAME_SUCCESS;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering}
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poetteringstatic void busname_trigger_notify(Unit *u, Unit *other) {
83f6936a018b08880670838756e0f4e9ea98b4a7Lennart Poettering        BusName *n = BUSNAME(u);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        Service *s;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        assert(n);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        assert(other);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        if (!IN_SET(n->state, BUSNAME_RUNNING, BUSNAME_LISTENING))
83f6936a018b08880670838756e0f4e9ea98b4a7Lennart Poettering                return;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        if (other->load_state != UNIT_LOADED || other->type != UNIT_SERVICE)
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                return;
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        s = SERVICE(other);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
83f6936a018b08880670838756e0f4e9ea98b4a7Lennart Poettering        if (s->state == SERVICE_FAILED && s->result == SERVICE_FAILURE_START_LIMIT)
83f6936a018b08880670838756e0f4e9ea98b4a7Lennart Poettering                busname_enter_dead(n, BUSNAME_FAILURE_SERVICE_FAILED_PERMANENT);
83f6936a018b08880670838756e0f4e9ea98b4a7Lennart Poettering        else if (IN_SET(s->state,
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                        SERVICE_DEAD, SERVICE_FAILED,
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                        SERVICE_STOP, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL,
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek                        SERVICE_STOP_POST, SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL,
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                        SERVICE_AUTO_RESTART))
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                busname_enter_listening(n);
a7f7d1bde43fc825c49afea3f946f5b4b3d563e0Harald Hoyer}
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poetteringstatic const char* const busname_state_table[_BUSNAME_STATE_MAX] = {
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        [BUSNAME_DEAD] = "dead",
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        [BUSNAME_REGISTERED] = "registered",
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        [BUSNAME_LISTENING] = "listening",
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        [BUSNAME_RUNNING] = "running",
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek        [BUSNAME_FAILED] = "failed"
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering};
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart PoetteringDEFINE_STRING_TABLE_LOOKUP(busname_state, BusNameState);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poetteringstatic const char* const busname_result_table[_BUSNAME_RESULT_MAX] = {
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        [BUSNAME_SUCCESS] = "success",
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        [BUSNAME_FAILURE_RESOURCES] = "resources",
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        [BUSNAME_FAILURE_SERVICE_FAILED_PERMANENT] = "service-failed-permanent",
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering};
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart PoetteringDEFINE_STRING_TABLE_LOOKUP(busname_result, BusNameResult);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poetteringstatic const char* const busname_policy_access_table[_BUSNAME_POLICY_ACCESS_MAX] = {
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        [BUSNAME_POLICY_ACCESS_SEE] = "see",
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        [BUSNAME_POLICY_ACCESS_TALK] = "talk",
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        [BUSNAME_POLICY_ACCESS_OWN] = "own",
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering};
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart PoetteringDEFINE_STRING_TABLE_LOOKUP(busname_policy_access, BusNamePolicyAccess);
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poetteringconst UnitVTable busname_vtable = {
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        .object_size = sizeof(BusName),
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        .sections =
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                "Unit\0"
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                "BusName\0"
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering                "Install\0",
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        .private_section = "BusName",
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        .init = busname_init,
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        .done = busname_done,
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        .load = busname_load,
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        .coldplug = busname_coldplug,
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        .dump = busname_dump,
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        .start = busname_start,
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        .stop = busname_stop,
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        .serialize = busname_serialize,
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        .deserialize_item = busname_deserialize_item,
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        .active_state = busname_active_state,
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        .sub_state_to_string = busname_sub_state_to_string,
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        .trigger_notify = busname_trigger_notify,
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering        .reset_failed = busname_reset_failed,
54b7254c1fa629937f92fd6fa34bdf127b696a00Zbigniew Jędrzejewski-Szmek
54b7254c1fa629937f92fd6fa34bdf127b696a00Zbigniew Jędrzejewski-Szmek        .bus_interface = "org.freedesktop.systemd1.BusName",
54b7254c1fa629937f92fd6fa34bdf127b696a00Zbigniew Jędrzejewski-Szmek        .bus_vtable = bus_busname_vtable,
54b7254c1fa629937f92fd6fa34bdf127b696a00Zbigniew Jędrzejewski-Szmek
54b7254c1fa629937f92fd6fa34bdf127b696a00Zbigniew Jędrzejewski-Szmek        .status_message_formats = {
54b7254c1fa629937f92fd6fa34bdf127b696a00Zbigniew Jędrzejewski-Szmek                .finished_start_job = {
54b7254c1fa629937f92fd6fa34bdf127b696a00Zbigniew Jędrzejewski-Szmek                        [JOB_DONE]       = "Listening on %s.",
54b7254c1fa629937f92fd6fa34bdf127b696a00Zbigniew Jędrzejewski-Szmek                        [JOB_FAILED]     = "Failed to listen on %s.",
54b7254c1fa629937f92fd6fa34bdf127b696a00Zbigniew Jędrzejewski-Szmek                        [JOB_DEPENDENCY] = "Dependency failed for %s.",
54b7254c1fa629937f92fd6fa34bdf127b696a00Zbigniew Jędrzejewski-Szmek                        [JOB_TIMEOUT]    = "Timed out starting %s.",
54b7254c1fa629937f92fd6fa34bdf127b696a00Zbigniew Jędrzejewski-Szmek                },
54b7254c1fa629937f92fd6fa34bdf127b696a00Zbigniew Jędrzejewski-Szmek                .finished_stop_job = {
54b7254c1fa629937f92fd6fa34bdf127b696a00Zbigniew Jędrzejewski-Szmek                        [JOB_DONE]       = "Closed %s.",
54b7254c1fa629937f92fd6fa34bdf127b696a00Zbigniew Jędrzejewski-Szmek                        [JOB_FAILED]     = "Failed stopping %s.",
54b7254c1fa629937f92fd6fa34bdf127b696a00Zbigniew Jędrzejewski-Szmek                        [JOB_TIMEOUT]    = "Timed out stopping %s.",
54b7254c1fa629937f92fd6fa34bdf127b696a00Zbigniew Jędrzejewski-Szmek                },
844ec79b3c2f246114ea316ebe1f36044bdb688eZbigniew Jędrzejewski-Szmek        },
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering};
d4205751d4643c272059a3728045929dd0e5e800Lennart Poettering