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-rw-r--r--src/shared/bus-unit-util.c1302
1 files changed, 0 insertions, 1302 deletions
diff --git a/src/shared/bus-unit-util.c b/src/shared/bus-unit-util.c
deleted file mode 100644
index 68ec4b4e6..000000000
--- a/src/shared/bus-unit-util.c
+++ /dev/null
@@ -1,1302 +0,0 @@
-/***
- This file is part of elogind.
-
- Copyright 2016 Lennart Poettering
-
- elogind is free software; you can redistribute it and/or modify it
- under the terms of the GNU Lesser General Public License as published by
- the Free Software Foundation; either version 2.1 of the License, or
- (at your option) any later version.
-
- elogind is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public License
- along with elogind; If not, see <http://www.gnu.org/licenses/>.
-***/
-
-#include "alloc-util.h"
-#include "bus-internal.h"
-#include "bus-unit-util.h"
-#include "bus-util.h"
-#include "cgroup-util.h"
-#include "env-util.h"
-#include "escape.h"
-#include "hashmap.h"
-#include "list.h"
-#include "locale-util.h"
-#include "parse-util.h"
-#include "path-util.h"
-#include "process-util.h"
-#include "rlimit-util.h"
-#include "signal-util.h"
-#include "string-util.h"
-#include "syslog-util.h"
-#include "terminal-util.h"
-#include "utf8.h"
-#include "util.h"
-
-int bus_parse_unit_info(sd_bus_message *message, UnitInfo *u) {
- assert(message);
- assert(u);
-
- u->machine = NULL;
-
- return sd_bus_message_read(
- message,
- "(ssssssouso)",
- &u->id,
- &u->description,
- &u->load_state,
- &u->active_state,
- &u->sub_state,
- &u->following,
- &u->unit_path,
- &u->job_id,
- &u->job_type,
- &u->job_path);
-}
-
-int bus_append_unit_property_assignment(sd_bus_message *m, const char *assignment) {
- const char *eq, *field;
- int r, rl;
-
- assert(m);
- assert(assignment);
-
- eq = strchr(assignment, '=');
- if (!eq) {
- log_error("Not an assignment: %s", assignment);
- return -EINVAL;
- }
-
- r = sd_bus_message_open_container(m, SD_BUS_TYPE_STRUCT, "sv");
- if (r < 0)
- return bus_log_create_error(r);
-
- field = strndupa(assignment, eq - assignment);
- eq++;
-
- if (streq(field, "CPUQuota")) {
-
- if (isempty(eq))
- r = sd_bus_message_append(m, "sv", "CPUQuotaPerSecUSec", "t", USEC_INFINITY);
- else if (endswith(eq, "%")) {
- double percent;
-
- if (sscanf(eq, "%lf%%", &percent) != 1 || percent <= 0) {
- log_error("CPU quota '%s' invalid.", eq);
- return -EINVAL;
- }
-
- r = sd_bus_message_append(m, "sv", "CPUQuotaPerSecUSec", "t", (usec_t) percent * USEC_PER_SEC / 100);
- } else {
- log_error("CPU quota needs to be in percent.");
- return -EINVAL;
- }
-
- goto finish;
-
- } else if (streq(field, "EnvironmentFile")) {
-
- r = sd_bus_message_append(m, "sv", "EnvironmentFiles", "a(sb)", 1,
- eq[0] == '-' ? eq + 1 : eq,
- eq[0] == '-');
- goto finish;
-
- } else if (STR_IN_SET(field, "AccuracySec", "RandomizedDelaySec", "RuntimeMaxSec")) {
- char *n;
- usec_t t;
- size_t l;
- r = parse_sec(eq, &t);
- if (r < 0)
- return log_error_errno(r, "Failed to parse %s= parameter: %s", field, eq);
-
- l = strlen(field);
- n = newa(char, l + 2);
- if (!n)
- return log_oom();
-
- /* Change suffix Sec → USec */
- strcpy(mempcpy(n, field, l - 3), "USec");
- r = sd_bus_message_append(m, "sv", n, "t", t);
- goto finish;
- }
-
- r = sd_bus_message_append_basic(m, SD_BUS_TYPE_STRING, field);
- if (r < 0)
- return bus_log_create_error(r);
-
- rl = rlimit_from_string(field);
- if (rl >= 0) {
- const char *sn;
- struct rlimit l;
-
- r = rlimit_parse(rl, eq, &l);
- if (r < 0)
- return log_error_errno(r, "Failed to parse resource limit: %s", eq);
-
- r = sd_bus_message_append(m, "v", "t", l.rlim_max);
- if (r < 0)
- return bus_log_create_error(r);
-
- r = sd_bus_message_close_container(m);
- if (r < 0)
- return bus_log_create_error(r);
-
- r = sd_bus_message_open_container(m, SD_BUS_TYPE_STRUCT, "sv");
- if (r < 0)
- return bus_log_create_error(r);
-
- sn = strjoina(field, "Soft");
- r = sd_bus_message_append(m, "sv", sn, "t", l.rlim_cur);
-
- } else if (STR_IN_SET(field,
- "CPUAccounting", "MemoryAccounting", "IOAccounting", "BlockIOAccounting", "TasksAccounting",
- "SendSIGHUP", "SendSIGKILL", "WakeSystem", "DefaultDependencies",
- "IgnoreSIGPIPE", "TTYVHangup", "TTYReset", "RemainAfterExit",
- "PrivateTmp", "PrivateDevices", "PrivateNetwork", "NoNewPrivileges",
- "SyslogLevelPrefix", "Delegate", "RemainAfterElapse")) {
-
- r = parse_boolean(eq);
- if (r < 0)
- return log_error_errno(r, "Failed to parse boolean assignment %s.", assignment);
-
- r = sd_bus_message_append(m, "v", "b", r);
-
- } else if (streq(field, "MemoryLimit")) {
- uint64_t bytes;
-
- if (isempty(eq) || streq(eq, "infinity"))
- bytes = (uint64_t) -1;
- else {
- r = parse_size(eq, 1024, &bytes);
- if (r < 0) {
- log_error("Failed to parse bytes specification %s", assignment);
- return -EINVAL;
- }
- }
-
- r = sd_bus_message_append(m, "v", "t", bytes);
-
- } else if (streq(field, "TasksMax")) {
- uint64_t n;
-
- if (isempty(eq) || streq(eq, "infinity"))
- n = (uint64_t) -1;
- else {
- r = safe_atou64(eq, &n);
- if (r < 0) {
- log_error("Failed to parse maximum tasks specification %s", assignment);
- return -EINVAL;
- }
- }
-
- r = sd_bus_message_append(m, "v", "t", n);
-
- } else if (STR_IN_SET(field, "CPUShares", "StartupCPUShares")) {
- uint64_t u;
-
- r = cg_cpu_shares_parse(eq, &u);
- if (r < 0) {
- log_error("Failed to parse %s value %s.", field, eq);
- return -EINVAL;
- }
-
- r = sd_bus_message_append(m, "v", "t", u);
-
- } else if (STR_IN_SET(field, "IOWeight", "StartupIOWeight")) {
- uint64_t u;
-
- r = cg_weight_parse(eq, &u);
- if (r < 0) {
- log_error("Failed to parse %s value %s.", field, eq);
- return -EINVAL;
- }
-
- r = sd_bus_message_append(m, "v", "t", u);
-
- } else if (STR_IN_SET(field, "BlockIOWeight", "StartupBlockIOWeight")) {
- uint64_t u;
-
- r = cg_cpu_shares_parse(eq, &u);
- if (r < 0) {
- log_error("Failed to parse %s value %s.", field, eq);
- return -EINVAL;
- }
-
- r = sd_bus_message_append(m, "v", "t", u);
-
- } else if (STR_IN_SET(field,
- "User", "Group", "DevicePolicy", "KillMode",
- "UtmpIdentifier", "UtmpMode", "PAMName", "TTYPath",
- "StandardInput", "StandardOutput", "StandardError",
- "Description", "Slice", "Type", "WorkingDirectory",
- "RootDirectory", "SyslogIdentifier", "ProtectSystem",
- "ProtectHome"))
- r = sd_bus_message_append(m, "v", "s", eq);
-
- else if (streq(field, "SyslogLevel")) {
- int level;
-
- level = log_level_from_string(eq);
- if (level < 0) {
- log_error("Failed to parse %s value %s.", field, eq);
- return -EINVAL;
- }
-
- r = sd_bus_message_append(m, "v", "i", level);
-
- } else if (streq(field, "SyslogFacility")) {
- int facility;
-
- facility = log_facility_unshifted_from_string(eq);
- if (facility < 0) {
- log_error("Failed to parse %s value %s.", field, eq);
- return -EINVAL;
- }
-
- r = sd_bus_message_append(m, "v", "i", facility);
-
- } else if (streq(field, "DeviceAllow")) {
-
- if (isempty(eq))
- r = sd_bus_message_append(m, "v", "a(ss)", 0);
- else {
- const char *path, *rwm, *e;
-
- e = strchr(eq, ' ');
- if (e) {
- path = strndupa(eq, e - eq);
- rwm = e+1;
- } else {
- path = eq;
- rwm = "";
- }
-
- if (!path_startswith(path, "/dev")) {
- log_error("%s is not a device file in /dev.", path);
- return -EINVAL;
- }
-
- r = sd_bus_message_append(m, "v", "a(ss)", 1, path, rwm);
- }
-
- } else if (cgroup_io_limit_type_from_string(field) >= 0 || STR_IN_SET(field, "BlockIOReadBandwidth", "BlockIOWriteBandwidth")) {
-
- if (isempty(eq))
- r = sd_bus_message_append(m, "v", "a(st)", 0);
- else {
- const char *path, *bandwidth, *e;
- uint64_t bytes;
-
- e = strchr(eq, ' ');
- if (e) {
- path = strndupa(eq, e - eq);
- bandwidth = e+1;
- } else {
- log_error("Failed to parse %s value %s.", field, eq);
- return -EINVAL;
- }
-
- if (!path_startswith(path, "/dev")) {
- log_error("%s is not a device file in /dev.", path);
- return -EINVAL;
- }
-
- if (streq(bandwidth, "max")) {
- bytes = CGROUP_LIMIT_MAX;
- } else {
- r = parse_size(bandwidth, 1000, &bytes);
- if (r < 0) {
- log_error("Failed to parse byte value %s.", bandwidth);
- return -EINVAL;
- }
- }
-
- r = sd_bus_message_append(m, "v", "a(st)", 1, path, bytes);
- }
-
- } else if (STR_IN_SET(field, "IODeviceWeight", "BlockIODeviceWeight")) {
-
- if (isempty(eq))
- r = sd_bus_message_append(m, "v", "a(st)", 0);
- else {
- const char *path, *weight, *e;
- uint64_t u;
-
- e = strchr(eq, ' ');
- if (e) {
- path = strndupa(eq, e - eq);
- weight = e+1;
- } else {
- log_error("Failed to parse %s value %s.", field, eq);
- return -EINVAL;
- }
-
- if (!path_startswith(path, "/dev")) {
- log_error("%s is not a device file in /dev.", path);
- return -EINVAL;
- }
-
- r = safe_atou64(weight, &u);
- if (r < 0) {
- log_error("Failed to parse %s value %s.", field, weight);
- return -EINVAL;
- }
- r = sd_bus_message_append(m, "v", "a(st)", path, u);
- }
-
- } else if (streq(field, "Nice")) {
- int32_t i;
-
- r = safe_atoi32(eq, &i);
- if (r < 0) {
- log_error("Failed to parse %s value %s.", field, eq);
- return -EINVAL;
- }
-
- r = sd_bus_message_append(m, "v", "i", i);
-
- } else if (STR_IN_SET(field, "Environment", "PassEnvironment")) {
- const char *p;
-
- r = sd_bus_message_open_container(m, 'v', "as");
- if (r < 0)
- return bus_log_create_error(r);
-
- r = sd_bus_message_open_container(m, 'a', "s");
- if (r < 0)
- return bus_log_create_error(r);
-
- p = eq;
-
- for (;;) {
- _cleanup_free_ char *word = NULL;
-
- r = extract_first_word(&p, &word, NULL, EXTRACT_QUOTES|EXTRACT_CUNESCAPE);
- if (r < 0) {
- log_error("Failed to parse Environment value %s", eq);
- return -EINVAL;
- }
- if (r == 0)
- break;
-
- if (streq(field, "Environment")) {
- if (!env_assignment_is_valid(word)) {
- log_error("Invalid environment assignment: %s", word);
- return -EINVAL;
- }
- } else { /* PassEnvironment */
- if (!env_name_is_valid(word)) {
- log_error("Invalid environment variable name: %s", word);
- return -EINVAL;
- }
- }
-
- r = sd_bus_message_append_basic(m, 's', word);
- if (r < 0)
- return bus_log_create_error(r);
- }
-
- r = sd_bus_message_close_container(m);
- if (r < 0)
- return bus_log_create_error(r);
-
- r = sd_bus_message_close_container(m);
-
- } else if (streq(field, "KillSignal")) {
- int sig;
-
- sig = signal_from_string_try_harder(eq);
- if (sig < 0) {
- log_error("Failed to parse %s value %s.", field, eq);
- return -EINVAL;
- }
-
- r = sd_bus_message_append(m, "v", "i", sig);
-
- } else if (streq(field, "TimerSlackNSec")) {
- nsec_t n;
-
- r = parse_nsec(eq, &n);
- if (r < 0) {
- log_error("Failed to parse %s value %s", field, eq);
- return -EINVAL;
- }
-
- r = sd_bus_message_append(m, "v", "t", n);
- } else if (streq(field, "OOMScoreAdjust")) {
- int oa;
-
- r = safe_atoi(eq, &oa);
- if (r < 0) {
- log_error("Failed to parse %s value %s", field, eq);
- return -EINVAL;
- }
-
- if (!oom_score_adjust_is_valid(oa)) {
- log_error("OOM score adjust value out of range");
- return -EINVAL;
- }
-
- r = sd_bus_message_append(m, "v", "i", oa);
- } else if (STR_IN_SET(field, "ReadWriteDirectories", "ReadOnlyDirectories", "InaccessibleDirectories")) {
- const char *p;
-
- r = sd_bus_message_open_container(m, 'v', "as");
- if (r < 0)
- return bus_log_create_error(r);
-
- r = sd_bus_message_open_container(m, 'a', "s");
- if (r < 0)
- return bus_log_create_error(r);
-
- p = eq;
-
- for (;;) {
- _cleanup_free_ char *word = NULL;
- int offset;
-
- r = extract_first_word(&p, &word, NULL, EXTRACT_QUOTES);
- if (r < 0) {
- log_error("Failed to parse %s value %s", field, eq);
- return -EINVAL;
- }
- if (r == 0)
- break;
-
- if (!utf8_is_valid(word)) {
- log_error("Failed to parse %s value %s", field, eq);
- return -EINVAL;
- }
-
- offset = word[0] == '-';
- if (!path_is_absolute(word + offset)) {
- log_error("Failed to parse %s value %s", field, eq);
- return -EINVAL;
- }
-
- path_kill_slashes(word + offset);
-
- r = sd_bus_message_append_basic(m, 's', word);
- if (r < 0)
- return bus_log_create_error(r);
- }
-
- r = sd_bus_message_close_container(m);
- if (r < 0)
- return bus_log_create_error(r);
-
- r = sd_bus_message_close_container(m);
-
- } else if (streq(field, "RuntimeDirectory")) {
- const char *p;
-
- r = sd_bus_message_open_container(m, 'v', "as");
- if (r < 0)
- return bus_log_create_error(r);
-
- r = sd_bus_message_open_container(m, 'a', "s");
- if (r < 0)
- return bus_log_create_error(r);
-
- p = eq;
-
- for (;;) {
- _cleanup_free_ char *word = NULL;
-
- r = extract_first_word(&p, &word, NULL, EXTRACT_QUOTES);
- if (r < 0)
- return log_error_errno(r, "Failed to parse %s value %s", field, eq);
-
- if (r == 0)
- break;
-
- r = sd_bus_message_append_basic(m, 's', word);
- if (r < 0)
- return bus_log_create_error(r);
- }
-
- r = sd_bus_message_close_container(m);
- if (r < 0)
- return bus_log_create_error(r);
-
- r = sd_bus_message_close_container(m);
-
- } else {
- log_error("Unknown assignment %s.", assignment);
- return -EINVAL;
- }
-
-finish:
- if (r < 0)
- return bus_log_create_error(r);
-
- r = sd_bus_message_close_container(m);
- if (r < 0)
- return bus_log_create_error(r);
-
- return 0;
-}
-
-typedef struct BusWaitForJobs {
- sd_bus *bus;
- Set *jobs;
-
- char *name;
- char *result;
-
- sd_bus_slot *slot_job_removed;
- sd_bus_slot *slot_disconnected;
-} BusWaitForJobs;
-
-static int match_disconnected(sd_bus_message *m, void *userdata, sd_bus_error *error) {
- assert(m);
-
- log_error("Warning! D-Bus connection terminated.");
- sd_bus_close(sd_bus_message_get_bus(m));
-
- return 0;
-}
-
-static int match_job_removed(sd_bus_message *m, void *userdata, sd_bus_error *error) {
- const char *path, *unit, *result;
- BusWaitForJobs *d = userdata;
- uint32_t id;
- char *found;
- int r;
-
- assert(m);
- assert(d);
-
- r = sd_bus_message_read(m, "uoss", &id, &path, &unit, &result);
- if (r < 0) {
- bus_log_parse_error(r);
- return 0;
- }
-
- found = set_remove(d->jobs, (char*) path);
- if (!found)
- return 0;
-
- free(found);
-
- if (!isempty(result))
- d->result = strdup(result);
-
- if (!isempty(unit))
- d->name = strdup(unit);
-
- return 0;
-}
-
-void bus_wait_for_jobs_free(BusWaitForJobs *d) {
- if (!d)
- return;
-
- set_free_free(d->jobs);
-
- sd_bus_slot_unref(d->slot_disconnected);
- sd_bus_slot_unref(d->slot_job_removed);
-
- sd_bus_unref(d->bus);
-
- free(d->name);
- free(d->result);
-
- free(d);
-}
-
-int bus_wait_for_jobs_new(sd_bus *bus, BusWaitForJobs **ret) {
- _cleanup_(bus_wait_for_jobs_freep) BusWaitForJobs *d = NULL;
- int r;
-
- assert(bus);
- assert(ret);
-
- d = new0(BusWaitForJobs, 1);
- if (!d)
- return -ENOMEM;
-
- d->bus = sd_bus_ref(bus);
-
- /* When we are a bus client we match by sender. Direct
- * connections OTOH have no initialized sender field, and
- * hence we ignore the sender then */
- r = sd_bus_add_match(
- bus,
- &d->slot_job_removed,
- bus->bus_client ?
- "type='signal',"
- "sender='org.freedesktop.elogind1',"
- "interface='org.freedesktop.elogind1.Manager',"
- "member='JobRemoved',"
- "path='/org/freedesktop/elogind1'" :
- "type='signal',"
- "interface='org.freedesktop.elogind1.Manager',"
- "member='JobRemoved',"
- "path='/org/freedesktop/elogind1'",
- match_job_removed, d);
- if (r < 0)
- return r;
-
- r = sd_bus_add_match(
- bus,
- &d->slot_disconnected,
- "type='signal',"
- "sender='org.freedesktop.DBus.Local',"
- "interface='org.freedesktop.DBus.Local',"
- "member='Disconnected'",
- match_disconnected, d);
- if (r < 0)
- return r;
-
- *ret = d;
- d = NULL;
-
- return 0;
-}
-
-static int bus_process_wait(sd_bus *bus) {
- int r;
-
- for (;;) {
- r = sd_bus_process(bus, NULL);
- if (r < 0)
- return r;
- if (r > 0)
- return 0;
-
- r = sd_bus_wait(bus, (uint64_t) -1);
- if (r < 0)
- return r;
- }
-}
-
-static int bus_job_get_service_result(BusWaitForJobs *d, char **result) {
- _cleanup_free_ char *dbus_path = NULL;
-
- assert(d);
- assert(d->name);
- assert(result);
-
- dbus_path = unit_dbus_path_from_name(d->name);
- if (!dbus_path)
- return -ENOMEM;
-
- return sd_bus_get_property_string(d->bus,
- "org.freedesktop.elogind1",
- dbus_path,
- "org.freedesktop.elogind1.Service",
- "Result",
- NULL,
- result);
-}
-
-static const struct {
- const char *result, *explanation;
-} explanations [] = {
- { "resources", "a configured resource limit was exceeded" },
- { "timeout", "a timeout was exceeded" },
- { "exit-code", "the control process exited with error code" },
- { "signal", "a fatal signal was delivered to the control process" },
- { "core-dump", "a fatal signal was delivered causing the control process to dump core" },
- { "watchdog", "the service failed to send watchdog ping" },
- { "start-limit", "start of the service was attempted too often" }
-};
-
-static void log_job_error_with_service_result(const char* service, const char *result, const char* const* extra_args) {
- _cleanup_free_ char *service_shell_quoted = NULL;
- const char *systemctl = "systemctl", *journalctl = "journalctl";
-
- assert(service);
-
- service_shell_quoted = shell_maybe_quote(service);
-
- if (extra_args && extra_args[1]) {
- _cleanup_free_ char *t;
-
- t = strv_join((char**) extra_args, " ");
- systemctl = strjoina("systemctl ", t ? : "<args>");
- journalctl = strjoina("journalctl ", t ? : "<args>");
- }
-
- if (!isempty(result)) {
- unsigned i;
-
- for (i = 0; i < ELEMENTSOF(explanations); ++i)
- if (streq(result, explanations[i].result))
- break;
-
- if (i < ELEMENTSOF(explanations)) {
- log_error("Job for %s failed because %s.\n"
- "See \"%s status %s\" and \"%s -xe\" for details.\n",
- service,
- explanations[i].explanation,
- systemctl,
- service_shell_quoted ?: "<service>",
- journalctl);
- goto finish;
- }
- }
-
- log_error("Job for %s failed.\n"
- "See \"%s status %s\" and \"%s -xe\" for details.\n",
- service,
- systemctl,
- service_shell_quoted ?: "<service>",
- journalctl);
-
-finish:
- /* For some results maybe additional explanation is required */
- if (streq_ptr(result, "start-limit"))
- log_info("To force a start use \"%1$s reset-failed %2$s\"\n"
- "followed by \"%1$s start %2$s\" again.",
- systemctl,
- service_shell_quoted ?: "<service>");
-}
-
-static int check_wait_response(BusWaitForJobs *d, bool quiet, const char* const* extra_args) {
- int r = 0;
-
- assert(d->result);
-
- if (!quiet) {
- if (streq(d->result, "canceled"))
- log_error("Job for %s canceled.", strna(d->name));
- else if (streq(d->result, "timeout"))
- log_error("Job for %s timed out.", strna(d->name));
- else if (streq(d->result, "dependency"))
- log_error("A dependency job for %s failed. See 'journalctl -xe' for details.", strna(d->name));
- else if (streq(d->result, "invalid"))
- log_error("%s is not active, cannot reload.", strna(d->name));
- else if (streq(d->result, "assert"))
- log_error("Assertion failed on job for %s.", strna(d->name));
- else if (streq(d->result, "unsupported"))
- log_error("Operation on or unit type of %s not supported on this system.", strna(d->name));
- else if (!streq(d->result, "done") && !streq(d->result, "skipped")) {
- if (d->name) {
- int q;
- _cleanup_free_ char *result = NULL;
-
- q = bus_job_get_service_result(d, &result);
- if (q < 0)
- log_debug_errno(q, "Failed to get Result property of service %s: %m", d->name);
-
- log_job_error_with_service_result(d->name, result, extra_args);
- } else
- log_error("Job failed. See \"journalctl -xe\" for details.");
- }
- }
-
- if (streq(d->result, "canceled"))
- r = -ECANCELED;
- else if (streq(d->result, "timeout"))
- r = -ETIME;
- else if (streq(d->result, "dependency"))
- r = -EIO;
- else if (streq(d->result, "invalid"))
- r = -ENOEXEC;
- else if (streq(d->result, "assert"))
- r = -EPROTO;
- else if (streq(d->result, "unsupported"))
- r = -EOPNOTSUPP;
- else if (!streq(d->result, "done") && !streq(d->result, "skipped"))
- r = -EIO;
-
- return r;
-}
-
-int bus_wait_for_jobs(BusWaitForJobs *d, bool quiet, const char* const* extra_args) {
- int r = 0;
-
- assert(d);
-
- while (!set_isempty(d->jobs)) {
- int q;
-
- q = bus_process_wait(d->bus);
- if (q < 0)
- return log_error_errno(q, "Failed to wait for response: %m");
-
- if (d->result) {
- q = check_wait_response(d, quiet, extra_args);
- /* Return the first error as it is most likely to be
- * meaningful. */
- if (q < 0 && r == 0)
- r = q;
-
- log_debug_errno(q, "Got result %s/%m for job %s", strna(d->result), strna(d->name));
- }
-
- d->name = mfree(d->name);
- d->result = mfree(d->result);
- }
-
- return r;
-}
-
-int bus_wait_for_jobs_add(BusWaitForJobs *d, const char *path) {
- int r;
-
- assert(d);
-
- r = set_ensure_allocated(&d->jobs, &string_hash_ops);
- if (r < 0)
- return r;
-
- return set_put_strdup(d->jobs, path);
-}
-
-int bus_wait_for_jobs_one(BusWaitForJobs *d, const char *path, bool quiet) {
- int r;
-
- r = bus_wait_for_jobs_add(d, path);
- if (r < 0)
- return log_oom();
-
- return bus_wait_for_jobs(d, quiet, NULL);
-}
-
-int bus_deserialize_and_dump_unit_file_changes(sd_bus_message *m, bool quiet, UnitFileChange **changes, unsigned *n_changes) {
- const char *type, *path, *source;
- int r;
-
- r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(sss)");
- if (r < 0)
- return bus_log_parse_error(r);
-
- while ((r = sd_bus_message_read(m, "(sss)", &type, &path, &source)) > 0) {
- /* We expect only "success" changes to be sent over the bus.
- Hence, reject anything negative. */
- UnitFileChangeType ch = unit_file_change_type_from_string(type);
-
- if (ch < 0) {
- log_notice("Manager reported unknown change type \"%s\" for path \"%s\", ignoring.", type, path);
- continue;
- }
-
- r = unit_file_changes_add(changes, n_changes, ch, path, source);
- if (r < 0)
- return r;
- }
- if (r < 0)
- return bus_log_parse_error(r);
-
- r = sd_bus_message_exit_container(m);
- if (r < 0)
- return bus_log_parse_error(r);
-
- unit_file_dump_changes(0, NULL, *changes, *n_changes, false);
- return 0;
-}
-
-struct CGroupInfo {
- char *cgroup_path;
- bool is_const; /* If false, cgroup_path should be free()'d */
-
- Hashmap *pids; /* PID → process name */
- bool done;
-
- struct CGroupInfo *parent;
- LIST_FIELDS(struct CGroupInfo, siblings);
- LIST_HEAD(struct CGroupInfo, children);
- size_t n_children;
-};
-
-static bool IS_ROOT(const char *p) {
- return isempty(p) || streq(p, "/");
-}
-
-static int add_cgroup(Hashmap *cgroups, const char *path, bool is_const, struct CGroupInfo **ret) {
- struct CGroupInfo *parent = NULL, *cg;
- int r;
-
- assert(cgroups);
- assert(ret);
-
- if (IS_ROOT(path))
- path = "/";
-
- cg = hashmap_get(cgroups, path);
- if (cg) {
- *ret = cg;
- return 0;
- }
-
- if (!IS_ROOT(path)) {
- const char *e, *pp;
-
- e = strrchr(path, '/');
- if (!e)
- return -EINVAL;
-
- pp = strndupa(path, e - path);
- if (!pp)
- return -ENOMEM;
-
- r = add_cgroup(cgroups, pp, false, &parent);
- if (r < 0)
- return r;
- }
-
- cg = new0(struct CGroupInfo, 1);
- if (!cg)
- return -ENOMEM;
-
- if (is_const)
- cg->cgroup_path = (char*) path;
- else {
- cg->cgroup_path = strdup(path);
- if (!cg->cgroup_path) {
- free(cg);
- return -ENOMEM;
- }
- }
-
- cg->is_const = is_const;
- cg->parent = parent;
-
- r = hashmap_put(cgroups, cg->cgroup_path, cg);
- if (r < 0) {
- if (!is_const)
- free(cg->cgroup_path);
- free(cg);
- return r;
- }
-
- if (parent) {
- LIST_PREPEND(siblings, parent->children, cg);
- parent->n_children++;
- }
-
- *ret = cg;
- return 1;
-}
-
-static int add_process(
- Hashmap *cgroups,
- const char *path,
- pid_t pid,
- const char *name) {
-
- struct CGroupInfo *cg;
- int r;
-
- assert(cgroups);
- assert(name);
- assert(pid > 0);
-
- r = add_cgroup(cgroups, path, true, &cg);
- if (r < 0)
- return r;
-
- r = hashmap_ensure_allocated(&cg->pids, &trivial_hash_ops);
- if (r < 0)
- return r;
-
- return hashmap_put(cg->pids, PID_TO_PTR(pid), (void*) name);
-}
-
-static void remove_cgroup(Hashmap *cgroups, struct CGroupInfo *cg) {
- assert(cgroups);
- assert(cg);
-
- while (cg->children)
- remove_cgroup(cgroups, cg->children);
-
- hashmap_remove(cgroups, cg->cgroup_path);
-
- if (!cg->is_const)
- free(cg->cgroup_path);
-
- hashmap_free(cg->pids);
-
- if (cg->parent)
- LIST_REMOVE(siblings, cg->parent->children, cg);
-
- free(cg);
-}
-
-static int cgroup_info_compare_func(const void *a, const void *b) {
- const struct CGroupInfo *x = *(const struct CGroupInfo* const*) a, *y = *(const struct CGroupInfo* const*) b;
-
- assert(x);
- assert(y);
-
- return strcmp(x->cgroup_path, y->cgroup_path);
-}
-
-static int dump_processes(
- Hashmap *cgroups,
- const char *cgroup_path,
- const char *prefix,
- unsigned n_columns,
- OutputFlags flags) {
-
- struct CGroupInfo *cg;
- int r;
-
- assert(prefix);
-
- if (IS_ROOT(cgroup_path))
- cgroup_path = "/";
-
- cg = hashmap_get(cgroups, cgroup_path);
- if (!cg)
- return 0;
-
- if (!hashmap_isempty(cg->pids)) {
- const char *name;
- size_t n = 0, i;
- pid_t *pids;
- void *pidp;
- Iterator j;
- int width;
-
- /* Order processes by their PID */
- pids = newa(pid_t, hashmap_size(cg->pids));
-
- HASHMAP_FOREACH_KEY(name, pidp, cg->pids, j)
- pids[n++] = PTR_TO_PID(pidp);
-
- assert(n == hashmap_size(cg->pids));
- qsort_safe(pids, n, sizeof(pid_t), pid_compare_func);
-
- width = DECIMAL_STR_WIDTH(pids[n-1]);
-
- for (i = 0; i < n; i++) {
- _cleanup_free_ char *e = NULL;
- const char *special;
- bool more;
-
- name = hashmap_get(cg->pids, PID_TO_PTR(pids[i]));
- assert(name);
-
- if (n_columns != 0) {
- unsigned k;
-
- k = MAX(LESS_BY(n_columns, 2U + width + 1U), 20U);
-
- e = ellipsize(name, k, 100);
- if (e)
- name = e;
- }
-
- more = i+1 < n || cg->children;
- special = special_glyph(more ? TREE_BRANCH : TREE_RIGHT);
-
- fprintf(stdout, "%s%s%*"PID_PRI" %s\n",
- prefix,
- special,
- width, pids[i],
- name);
- }
- }
-
- if (cg->children) {
- struct CGroupInfo **children, *child;
- size_t n = 0, i;
-
- /* Order subcgroups by their name */
- children = newa(struct CGroupInfo*, cg->n_children);
- LIST_FOREACH(siblings, child, cg->children)
- children[n++] = child;
- assert(n == cg->n_children);
- qsort_safe(children, n, sizeof(struct CGroupInfo*), cgroup_info_compare_func);
-
- n_columns = MAX(LESS_BY(n_columns, 2U), 20U);
-
- for (i = 0; i < n; i++) {
- _cleanup_free_ char *pp = NULL;
- const char *name, *special;
- bool more;
-
- child = children[i];
-
- name = strrchr(child->cgroup_path, '/');
- if (!name)
- return -EINVAL;
- name++;
-
- more = i+1 < n;
- special = special_glyph(more ? TREE_BRANCH : TREE_RIGHT);
-
- fputs(prefix, stdout);
- fputs(special, stdout);
- fputs(name, stdout);
- fputc('\n', stdout);
-
- special = special_glyph(more ? TREE_VERTICAL : TREE_SPACE);
-
- pp = strappend(prefix, special);
- if (!pp)
- return -ENOMEM;
-
- r = dump_processes(cgroups, child->cgroup_path, pp, n_columns, flags);
- if (r < 0)
- return r;
- }
- }
-
- cg->done = true;
- return 0;
-}
-
-static int dump_extra_processes(
- Hashmap *cgroups,
- const char *prefix,
- unsigned n_columns,
- OutputFlags flags) {
-
- _cleanup_free_ pid_t *pids = NULL;
- _cleanup_hashmap_free_ Hashmap *names = NULL;
- struct CGroupInfo *cg;
- size_t n_allocated = 0, n = 0, k;
- Iterator i;
- int width, r;
-
- /* Prints the extra processes, i.e. those that are in cgroups we haven't displayed yet. We show them as
- * combined, sorted, linear list. */
-
- HASHMAP_FOREACH(cg, cgroups, i) {
- const char *name;
- void *pidp;
- Iterator j;
-
- if (cg->done)
- continue;
-
- if (hashmap_isempty(cg->pids))
- continue;
-
- r = hashmap_ensure_allocated(&names, &trivial_hash_ops);
- if (r < 0)
- return r;
-
- if (!GREEDY_REALLOC(pids, n_allocated, n + hashmap_size(cg->pids)))
- return -ENOMEM;
-
- HASHMAP_FOREACH_KEY(name, pidp, cg->pids, j) {
- pids[n++] = PTR_TO_PID(pidp);
-
- r = hashmap_put(names, pidp, (void*) name);
- if (r < 0)
- return r;
- }
- }
-
- if (n == 0)
- return 0;
-
- qsort_safe(pids, n, sizeof(pid_t), pid_compare_func);
- width = DECIMAL_STR_WIDTH(pids[n-1]);
-
- for (k = 0; k < n; k++) {
- _cleanup_free_ char *e = NULL;
- const char *name;
-
- name = hashmap_get(names, PID_TO_PTR(pids[k]));
- assert(name);
-
- if (n_columns != 0) {
- unsigned z;
-
- z = MAX(LESS_BY(n_columns, 2U + width + 1U), 20U);
-
- e = ellipsize(name, z, 100);
- if (e)
- name = e;
- }
-
- fprintf(stdout, "%s%s %*" PID_PRI " %s\n",
- prefix,
- special_glyph(TRIANGULAR_BULLET),
- width, pids[k],
- name);
- }
-
- return 0;
-}
-
-int unit_show_processes(
- sd_bus *bus,
- const char *unit,
- const char *cgroup_path,
- const char *prefix,
- unsigned n_columns,
- OutputFlags flags,
- sd_bus_error *error) {
-
- _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
- Hashmap *cgroups = NULL;
- struct CGroupInfo *cg;
- int r;
-
- assert(bus);
- assert(unit);
-
- if (flags & OUTPUT_FULL_WIDTH)
- n_columns = 0;
- else if (n_columns <= 0)
- n_columns = columns();
-
- prefix = strempty(prefix);
-
- r = sd_bus_call_method(
- bus,
- "org.freedesktop.elogind1",
- "/org/freedesktop/elogind1",
- "org.freedesktop.elogind1.Manager",
- "GetUnitProcesses",
- error,
- &reply,
- "s",
- unit);
- if (r < 0)
- return r;
-
- cgroups = hashmap_new(&string_hash_ops);
- if (!cgroups)
- return -ENOMEM;
-
- r = sd_bus_message_enter_container(reply, 'a', "(sus)");
- if (r < 0)
- goto finish;
-
- for (;;) {
- const char *path = NULL, *name = NULL;
- uint32_t pid;
-
- r = sd_bus_message_read(reply, "(sus)", &path, &pid, &name);
- if (r < 0)
- goto finish;
- if (r == 0)
- break;
-
- r = add_process(cgroups, path, pid, name);
- if (r < 0)
- goto finish;
- }
-
- r = sd_bus_message_exit_container(reply);
- if (r < 0)
- goto finish;
-
- r = dump_processes(cgroups, cgroup_path, prefix, n_columns, flags);
- if (r < 0)
- goto finish;
-
- r = dump_extra_processes(cgroups, prefix, n_columns, flags);
-
-finish:
- while ((cg = hashmap_first(cgroups)))
- remove_cgroup(cgroups, cg);
-
- hashmap_free(cgroups);
-
- return r;
-}