| /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
| |
| /*** |
| This file is part of systemd. |
| |
| Copyright 2010 Lennart Poettering |
| |
| systemd is free software; you can redistribute it and/or modify it |
| under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2 of the License, or |
| (at your option) any later version. |
| |
| systemd 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 |
| General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with systemd; If not, see <http://www.gnu.org/licenses/>. |
| ***/ |
| |
| #include <errno.h> |
| #include <dbus/dbus.h> |
| #include <sys/prctl.h> |
| |
| #include "dbus-execute.h" |
| #include "missing.h" |
| #include "ioprio.h" |
| #include "strv.h" |
| |
| DEFINE_BUS_PROPERTY_APPEND_ENUM(bus_execute_append_kill_mode, kill_mode, KillMode); |
| |
| DEFINE_BUS_PROPERTY_APPEND_ENUM(bus_execute_append_input, exec_input, ExecInput); |
| DEFINE_BUS_PROPERTY_APPEND_ENUM(bus_execute_append_output, exec_output, ExecOutput); |
| |
| int bus_execute_append_oom_score_adjust(Manager *m, DBusMessageIter *i, const char *property, void *data) { |
| ExecContext *c = data; |
| int32_t n; |
| |
| assert(m); |
| assert(i); |
| assert(property); |
| assert(c); |
| |
| if (c->oom_score_adjust_set) |
| n = c->oom_score_adjust; |
| else { |
| char *t; |
| |
| n = 0; |
| if (read_one_line_file("/proc/self/oom_score_adj", &t) >= 0) { |
| safe_atoi(t, &n); |
| free(t); |
| } else if (read_one_line_file("/proc/self/oom_adj", &t) >= 0) { |
| safe_atoi(t, &n); |
| free(t); |
| |
| if (n == OOM_ADJUST_MAX) |
| n = OOM_SCORE_ADJ_MAX; |
| else |
| n = (n * OOM_SCORE_ADJ_MAX) / -OOM_DISABLE; |
| } |
| } |
| |
| if (!dbus_message_iter_append_basic(i, DBUS_TYPE_INT32, &n)) |
| return -ENOMEM; |
| |
| return 0; |
| } |
| |
| int bus_execute_append_nice(Manager *m, DBusMessageIter *i, const char *property, void *data) { |
| ExecContext *c = data; |
| int32_t n; |
| |
| assert(m); |
| assert(i); |
| assert(property); |
| assert(c); |
| |
| if (c->nice_set) |
| n = c->nice; |
| else |
| n = getpriority(PRIO_PROCESS, 0); |
| |
| if (!dbus_message_iter_append_basic(i, DBUS_TYPE_INT32, &n)) |
| return -ENOMEM; |
| |
| return 0; |
| } |
| |
| int bus_execute_append_ioprio(Manager *m, DBusMessageIter *i, const char *property, void *data) { |
| ExecContext *c = data; |
| int32_t n; |
| |
| assert(m); |
| assert(i); |
| assert(property); |
| assert(c); |
| |
| if (c->ioprio_set) |
| n = c->ioprio; |
| else |
| n = ioprio_get(IOPRIO_WHO_PROCESS, 0); |
| |
| if (!dbus_message_iter_append_basic(i, DBUS_TYPE_INT32, &n)) |
| return -ENOMEM; |
| |
| return 0; |
| } |
| |
| int bus_execute_append_cpu_sched_policy(Manager *m, DBusMessageIter *i, const char *property, void *data) { |
| ExecContext *c = data; |
| int32_t n; |
| |
| assert(m); |
| assert(i); |
| assert(property); |
| assert(c); |
| |
| if (c->cpu_sched_set) |
| n = c->cpu_sched_policy; |
| else |
| n = sched_getscheduler(0); |
| |
| if (!dbus_message_iter_append_basic(i, DBUS_TYPE_INT32, &n)) |
| return -ENOMEM; |
| |
| return 0; |
| } |
| |
| int bus_execute_append_cpu_sched_priority(Manager *m, DBusMessageIter *i, const char *property, void *data) { |
| ExecContext *c = data; |
| int32_t n; |
| |
| assert(m); |
| assert(i); |
| assert(property); |
| assert(c); |
| |
| if (c->cpu_sched_set) |
| n = c->cpu_sched_priority; |
| else { |
| struct sched_param p; |
| n = 0; |
| |
| zero(p); |
| if (sched_getparam(0, &p) >= 0) |
| n = p.sched_priority; |
| } |
| |
| if (!dbus_message_iter_append_basic(i, DBUS_TYPE_INT32, &n)) |
| return -ENOMEM; |
| |
| return 0; |
| } |
| |
| int bus_execute_append_affinity(Manager *m, DBusMessageIter *i, const char *property, void *data) { |
| ExecContext *c = data; |
| dbus_bool_t b; |
| DBusMessageIter sub; |
| |
| assert(m); |
| assert(i); |
| assert(property); |
| assert(c); |
| |
| if (!dbus_message_iter_open_container(i, DBUS_TYPE_ARRAY, "y", &sub)) |
| return -ENOMEM; |
| |
| if (c->cpuset) |
| b = dbus_message_iter_append_fixed_array(&sub, DBUS_TYPE_BYTE, &c->cpuset, CPU_ALLOC_SIZE(c->cpuset_ncpus)); |
| else |
| b = dbus_message_iter_append_fixed_array(&sub, DBUS_TYPE_BYTE, &c->cpuset, 0); |
| |
| if (!b) |
| return -ENOMEM; |
| |
| if (!dbus_message_iter_close_container(i, &sub)) |
| return -ENOMEM; |
| |
| return 0; |
| } |
| |
| int bus_execute_append_timer_slack_nsec(Manager *m, DBusMessageIter *i, const char *property, void *data) { |
| ExecContext *c = data; |
| uint64_t u; |
| |
| assert(m); |
| assert(i); |
| assert(property); |
| assert(c); |
| |
| if (c->timer_slack_nsec_set) |
| u = (uint64_t) c->timer_slack_nsec; |
| else |
| u = (uint64_t) prctl(PR_GET_TIMERSLACK); |
| |
| if (!dbus_message_iter_append_basic(i, DBUS_TYPE_UINT64, &u)) |
| return -ENOMEM; |
| |
| return 0; |
| } |
| |
| int bus_execute_append_capabilities(Manager *m, DBusMessageIter *i, const char *property, void *data) { |
| ExecContext *c = data; |
| char *t = NULL; |
| const char *s; |
| dbus_bool_t b; |
| |
| assert(m); |
| assert(i); |
| assert(property); |
| assert(c); |
| |
| if (c->capabilities) |
| s = t = cap_to_text(c->capabilities, NULL); |
| else |
| s = ""; |
| |
| if (!s) |
| return -ENOMEM; |
| |
| b = dbus_message_iter_append_basic(i, DBUS_TYPE_STRING, &s); |
| |
| if (t) |
| cap_free(t); |
| |
| if (!b) |
| return -ENOMEM; |
| |
| return 0; |
| } |
| |
| int bus_execute_append_rlimits(Manager *m, DBusMessageIter *i, const char *property, void *data) { |
| ExecContext *c = data; |
| int r; |
| uint64_t u; |
| |
| assert(m); |
| assert(i); |
| assert(property); |
| assert(c); |
| |
| assert_se((r = rlimit_from_string(property)) >= 0); |
| |
| if (c->rlimit[r]) |
| u = (uint64_t) c->rlimit[r]->rlim_max; |
| else { |
| struct rlimit rl; |
| |
| zero(rl); |
| getrlimit(r, &rl); |
| |
| u = (uint64_t) rl.rlim_max; |
| } |
| |
| if (!dbus_message_iter_append_basic(i, DBUS_TYPE_UINT64, &u)) |
| return -ENOMEM; |
| |
| return 0; |
| } |
| |
| int bus_execute_append_command(Manager *m, DBusMessageIter *i, const char *property, void *data) { |
| ExecCommand *c = data; |
| DBusMessageIter sub, sub2, sub3; |
| |
| assert(m); |
| assert(i); |
| assert(property); |
| |
| if (!dbus_message_iter_open_container(i, DBUS_TYPE_ARRAY, "(sasbttuii)", &sub)) |
| return -ENOMEM; |
| |
| LIST_FOREACH(command, c, c) { |
| char **l; |
| uint32_t pid; |
| int32_t code, status; |
| |
| if (!c->path) |
| continue; |
| |
| if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2) || |
| !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &c->path) || |
| !dbus_message_iter_open_container(&sub2, DBUS_TYPE_ARRAY, "s", &sub3)) |
| return -ENOMEM; |
| |
| STRV_FOREACH(l, c->argv) |
| if (!dbus_message_iter_append_basic(&sub3, DBUS_TYPE_STRING, l)) |
| return -ENOMEM; |
| |
| pid = (uint32_t) c->exec_status.pid; |
| code = (int32_t) c->exec_status.code; |
| status = (int32_t) c->exec_status.status; |
| |
| if (!dbus_message_iter_close_container(&sub2, &sub3) || |
| !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_BOOLEAN, &c->ignore) || |
| !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_UINT64, &c->exec_status.start_timestamp.realtime) || |
| !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_UINT64, &c->exec_status.exit_timestamp.realtime) || |
| !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_UINT32, &pid) || |
| !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_INT32, &code) || |
| !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_INT32, &status)) |
| return -ENOMEM; |
| |
| if (!dbus_message_iter_close_container(&sub, &sub2)) |
| return -ENOMEM; |
| } |
| |
| if (!dbus_message_iter_close_container(i, &sub)) |
| return -ENOMEM; |
| |
| return 0; |
| } |