mirror of
https://github.com/systemd/systemd.git
synced 2024-11-07 01:27:11 +03:00
2760 lines
87 KiB
C
2760 lines
87 KiB
C
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
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/***
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This file is part of systemd.
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Copyright 2010 Lennart Poettering
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Copyright 2012 Holger Hans Peter Freyther
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include <linux/oom.h>
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#include <assert.h>
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#include <errno.h>
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#include <string.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <sched.h>
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#include <sys/prctl.h>
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#include <sys/mount.h>
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#include <linux/fs.h>
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#include <sys/stat.h>
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#include <sys/time.h>
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#include <sys/resource.h>
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#include <systemd/sd-messages.h>
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#include "unit.h"
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#include "strv.h"
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#include "conf-parser.h"
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#include "load-fragment.h"
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#include "log.h"
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#include "ioprio.h"
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#include "securebits.h"
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#include "missing.h"
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#include "unit-name.h"
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#include "unit-printf.h"
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#include "dbus-common.h"
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#include "utf8.h"
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#include "path-util.h"
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#include "syscall-list.h"
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#include "env-util.h"
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#include "cgroup.h"
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#ifndef HAVE_SYSV_COMPAT
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int config_parse_warn_compat(const char *unit,
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const char *filename,
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unsigned line,
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const char *section,
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const char *lvalue,
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int ltype,
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const char *rvalue,
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void *data,
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void *userdata) {
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log_syntax(unit, LOG_DEBUG, filename, line, EINVAL,
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"Support for option %s= has been disabled at compile time and is ignored",
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lvalue);
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return 0;
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}
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#endif
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int config_parse_unit_deps(const char* unit,
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const char *filename,
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unsigned line,
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const char *section,
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const char *lvalue,
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int ltype,
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const char *rvalue,
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void *data,
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void *userdata) {
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UnitDependency d = ltype;
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Unit *u = userdata;
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char *w;
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size_t l;
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char *state;
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assert(filename);
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assert(lvalue);
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assert(rvalue);
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FOREACH_WORD_QUOTED(w, l, rvalue, state) {
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_cleanup_free_ char *t = NULL, *k = NULL;
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int r;
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t = strndup(w, l);
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if (!t)
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return log_oom();
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r = unit_name_printf(u, t, &k);
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if (r < 0) {
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log_syntax(unit, LOG_ERR, filename, line, -r,
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"Failed to resolve specifiers, ignoring: %s", strerror(-r));
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continue;
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}
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r = unit_add_dependency_by_name(u, d, k, NULL, true);
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if (r < 0)
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log_syntax(unit, LOG_ERR, filename, line, -r,
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"Failed to add dependency on %s, ignoring: %s", k, strerror(-r));
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}
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return 0;
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}
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int config_parse_unit_string_printf(const char *unit,
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const char *filename,
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unsigned line,
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const char *section,
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const char *lvalue,
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int ltype,
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const char *rvalue,
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void *data,
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void *userdata) {
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Unit *u = userdata;
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_cleanup_free_ char *k = NULL;
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int r;
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assert(filename);
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assert(lvalue);
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assert(rvalue);
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assert(u);
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r = unit_full_printf(u, rvalue, &k);
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if (r < 0)
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log_syntax(unit, LOG_ERR, filename, line, -r,
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"Failed to resolve unit specifiers on %s, ignoring: %s", rvalue, strerror(-r));
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return config_parse_string(unit, filename, line, section, lvalue, ltype,
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k ? k : rvalue, data, userdata);
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}
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int config_parse_unit_strv_printf(const char *unit,
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const char *filename,
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unsigned line,
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const char *section,
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const char *lvalue,
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int ltype,
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const char *rvalue,
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void *data,
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void *userdata) {
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Unit *u = userdata;
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_cleanup_free_ char *k = NULL;
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int r;
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assert(filename);
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assert(lvalue);
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assert(rvalue);
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assert(u);
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r = unit_full_printf(u, rvalue, &k);
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if (r < 0)
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log_syntax(unit, LOG_ERR, filename, line, -r,
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"Failed to resolve unit specifiers on %s, ignoring: %s", rvalue, strerror(-r));
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return config_parse_strv(unit, filename, line, section, lvalue, ltype,
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k ? k : rvalue, data, userdata);
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}
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int config_parse_unit_path_printf(const char *unit,
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const char *filename,
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unsigned line,
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const char *section,
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const char *lvalue,
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int ltype,
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const char *rvalue,
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void *data,
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void *userdata) {
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Unit *u = userdata;
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_cleanup_free_ char *k = NULL;
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int r;
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assert(filename);
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assert(lvalue);
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assert(rvalue);
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assert(u);
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r = unit_full_printf(u, rvalue, &k);
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if (r < 0)
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log_syntax(unit, LOG_ERR, filename, line, -r,
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"Failed to resolve unit specifiers on %s, ignoring: %s", rvalue, strerror(-r));
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return config_parse_path(unit, filename, line, section, lvalue, ltype,
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k ? k : rvalue, data, userdata);
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}
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int config_parse_socket_listen(const char *unit,
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const char *filename,
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unsigned line,
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const char *section,
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const char *lvalue,
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int ltype,
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const char *rvalue,
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void *data,
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void *userdata) {
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SocketPort *p, *tail;
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Socket *s;
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int r;
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assert(filename);
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assert(lvalue);
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assert(rvalue);
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assert(data);
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s = SOCKET(data);
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if (isempty(rvalue)) {
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/* An empty assignment removes all ports */
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socket_free_ports(s);
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return 0;
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}
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p = new0(SocketPort, 1);
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if (!p)
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return log_oom();
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if (ltype != SOCKET_SOCKET) {
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p->type = ltype;
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r = unit_full_printf(UNIT(s), rvalue, &p->path);
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if (r < 0) {
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p->path = strdup(rvalue);
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if (!p->path) {
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free(p);
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return log_oom();
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} else
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log_syntax(unit, LOG_ERR, filename, line, -r,
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"Failed to resolve unit specifiers on %s, ignoring: %s", rvalue, strerror(-r));
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}
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path_kill_slashes(p->path);
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} else if (streq(lvalue, "ListenNetlink")) {
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_cleanup_free_ char *k = NULL;
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p->type = SOCKET_SOCKET;
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r = unit_full_printf(UNIT(s), rvalue, &k);
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if (r < 0)
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log_syntax(unit, LOG_ERR, filename, line, -r,
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"Failed to resolve unit specifiers on %s, ignoring: %s", rvalue, strerror(-r));
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r = socket_address_parse_netlink(&p->address, k ? k : rvalue);
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if (r < 0) {
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log_syntax(unit, LOG_ERR, filename, line, -r,
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"Failed to parse address value, ignoring: %s", rvalue);
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free(p);
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return 0;
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}
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} else {
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_cleanup_free_ char *k = NULL;
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p->type = SOCKET_SOCKET;
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r = unit_full_printf(UNIT(s), rvalue, &k);
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if (r < 0)
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log_syntax(unit, LOG_ERR, filename, line, -r,
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"Failed to resolve unit specifiers on %s, ignoring: %s", rvalue, strerror(-r));
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r = socket_address_parse(&p->address, k ? k : rvalue);
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if (r < 0) {
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log_syntax(unit, LOG_ERR, filename, line, -r,
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"Failed to parse address value, ignoring: %s", rvalue);
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free(p);
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return 0;
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}
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if (streq(lvalue, "ListenStream"))
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p->address.type = SOCK_STREAM;
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else if (streq(lvalue, "ListenDatagram"))
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p->address.type = SOCK_DGRAM;
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else {
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assert(streq(lvalue, "ListenSequentialPacket"));
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p->address.type = SOCK_SEQPACKET;
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}
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if (socket_address_family(&p->address) != AF_LOCAL && p->address.type == SOCK_SEQPACKET) {
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log_syntax(unit, LOG_ERR, filename, line, ENOTSUP,
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"Address family not supported, ignoring: %s", rvalue);
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free(p);
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return 0;
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}
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}
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p->fd = -1;
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if (s->ports) {
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LIST_FIND_TAIL(SocketPort, port, s->ports, tail);
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LIST_INSERT_AFTER(SocketPort, port, s->ports, tail, p);
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} else
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LIST_PREPEND(SocketPort, port, s->ports, p);
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return 0;
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}
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int config_parse_socket_bind(const char *unit,
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const char *filename,
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unsigned line,
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const char *section,
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const char *lvalue,
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int ltype,
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const char *rvalue,
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void *data,
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void *userdata) {
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Socket *s;
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SocketAddressBindIPv6Only b;
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assert(filename);
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assert(lvalue);
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assert(rvalue);
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assert(data);
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s = SOCKET(data);
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b = socket_address_bind_ipv6_only_from_string(rvalue);
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if (b < 0) {
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int r;
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r = parse_boolean(rvalue);
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if (r < 0) {
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log_syntax(unit, LOG_ERR, filename, line, EINVAL,
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"Failed to parse bind IPv6 only value, ignoring: %s", rvalue);
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return 0;
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}
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s->bind_ipv6_only = r ? SOCKET_ADDRESS_IPV6_ONLY : SOCKET_ADDRESS_BOTH;
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} else
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s->bind_ipv6_only = b;
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return 0;
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}
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int config_parse_exec_nice(const char *unit,
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const char *filename,
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unsigned line,
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const char *section,
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const char *lvalue,
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int ltype,
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const char *rvalue,
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void *data,
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void *userdata) {
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ExecContext *c = data;
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int priority, r;
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assert(filename);
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assert(lvalue);
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assert(rvalue);
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assert(data);
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r = safe_atoi(rvalue, &priority);
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if (r < 0) {
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log_syntax(unit, LOG_ERR, filename, line, -r,
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"Failed to parse nice priority, ignoring: %s. ", rvalue);
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return 0;
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}
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if (priority < PRIO_MIN || priority >= PRIO_MAX) {
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log_syntax(unit, LOG_ERR, filename, line, ERANGE,
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"Nice priority out of range, ignoring: %s", rvalue);
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return 0;
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}
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c->nice = priority;
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c->nice_set = true;
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return 0;
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}
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int config_parse_exec_oom_score_adjust(const char* unit,
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const char *filename,
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unsigned line,
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const char *section,
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const char *lvalue,
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int ltype,
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const char *rvalue,
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void *data,
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void *userdata) {
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ExecContext *c = data;
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int oa, r;
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assert(filename);
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assert(lvalue);
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assert(rvalue);
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assert(data);
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r = safe_atoi(rvalue, &oa);
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if (r < 0) {
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log_syntax(unit, LOG_ERR, filename, line, -r,
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"Failed to parse the OOM score adjust value, ignoring: %s", rvalue);
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return 0;
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}
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if (oa < OOM_SCORE_ADJ_MIN || oa > OOM_SCORE_ADJ_MAX) {
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log_syntax(unit, LOG_ERR, filename, line, ERANGE,
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"OOM score adjust value out of range, ignoring: %s", rvalue);
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return 0;
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}
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c->oom_score_adjust = oa;
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c->oom_score_adjust_set = true;
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return 0;
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}
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int config_parse_exec(const char *unit,
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const char *filename,
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unsigned line,
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const char *section,
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const char *lvalue,
|
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int ltype,
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|
const char *rvalue,
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void *data,
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void *userdata) {
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ExecCommand **e = data, *nce;
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char *path, **n;
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|
unsigned k;
|
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int r;
|
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|
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assert(filename);
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|
assert(lvalue);
|
|
assert(rvalue);
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assert(e);
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|
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e += ltype;
|
|
|
|
if (isempty(rvalue)) {
|
|
/* An empty assignment resets the list */
|
|
exec_command_free_list(*e);
|
|
*e = NULL;
|
|
return 0;
|
|
}
|
|
|
|
/* We accept an absolute path as first argument, or
|
|
* alternatively an absolute prefixed with @ to allow
|
|
* overriding of argv[0]. */
|
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for (;;) {
|
|
int i;
|
|
char *w;
|
|
size_t l;
|
|
char *state;
|
|
bool honour_argv0 = false, ignore = false;
|
|
|
|
path = NULL;
|
|
nce = NULL;
|
|
n = NULL;
|
|
|
|
rvalue += strspn(rvalue, WHITESPACE);
|
|
|
|
if (rvalue[0] == 0)
|
|
break;
|
|
|
|
for (i = 0; i < 2; i++) {
|
|
if (rvalue[0] == '-' && !ignore) {
|
|
ignore = true;
|
|
rvalue ++;
|
|
}
|
|
|
|
if (rvalue[0] == '@' && !honour_argv0) {
|
|
honour_argv0 = true;
|
|
rvalue ++;
|
|
}
|
|
}
|
|
|
|
if (*rvalue != '/') {
|
|
log_syntax(unit, LOG_ERR, filename, line, EINVAL,
|
|
"Executable path is not absolute, ignoring: %s", rvalue);
|
|
return 0;
|
|
}
|
|
|
|
k = 0;
|
|
FOREACH_WORD_QUOTED(w, l, rvalue, state) {
|
|
if (strneq(w, ";", MAX(l, 1U)))
|
|
break;
|
|
|
|
k++;
|
|
}
|
|
|
|
n = new(char*, k + !honour_argv0);
|
|
if (!n)
|
|
return log_oom();
|
|
|
|
k = 0;
|
|
FOREACH_WORD_QUOTED(w, l, rvalue, state) {
|
|
if (strneq(w, ";", MAX(l, 1U)))
|
|
break;
|
|
else if (strneq(w, "\\;", MAX(l, 1U)))
|
|
w ++;
|
|
|
|
if (honour_argv0 && w == rvalue) {
|
|
assert(!path);
|
|
|
|
path = strndup(w, l);
|
|
if (!path) {
|
|
r = log_oom();
|
|
goto fail;
|
|
}
|
|
|
|
if (!utf8_is_valid(path)) {
|
|
log_syntax(unit, LOG_ERR, filename, line, EINVAL,
|
|
"Path is not UTF-8 clean, ignoring assignment: %s",
|
|
rvalue);
|
|
r = 0;
|
|
goto fail;
|
|
}
|
|
|
|
} else {
|
|
char *c;
|
|
|
|
c = n[k++] = cunescape_length(w, l);
|
|
if (!c) {
|
|
r = log_oom();
|
|
goto fail;
|
|
}
|
|
|
|
if (!utf8_is_valid(c)) {
|
|
log_syntax(unit, LOG_ERR, filename, line, EINVAL,
|
|
"Path is not UTF-8 clean, ignoring assignment: %s",
|
|
rvalue);
|
|
r = 0;
|
|
goto fail;
|
|
}
|
|
}
|
|
}
|
|
|
|
n[k] = NULL;
|
|
|
|
if (!n[0]) {
|
|
log_syntax(unit, LOG_ERR, filename, line, EINVAL,
|
|
"Invalid command line, ignoring: %s", rvalue);
|
|
r = 0;
|
|
goto fail;
|
|
}
|
|
|
|
if (!path) {
|
|
path = strdup(n[0]);
|
|
if (!path) {
|
|
r = log_oom();
|
|
goto fail;
|
|
}
|
|
}
|
|
|
|
assert(path_is_absolute(path));
|
|
|
|
nce = new0(ExecCommand, 1);
|
|
if (!nce) {
|
|
r = log_oom();
|
|
goto fail;
|
|
}
|
|
|
|
nce->argv = n;
|
|
nce->path = path;
|
|
nce->ignore = ignore;
|
|
|
|
path_kill_slashes(nce->path);
|
|
|
|
exec_command_append_list(e, nce);
|
|
|
|
rvalue = state;
|
|
}
|
|
|
|
return 0;
|
|
|
|
fail:
|
|
n[k] = NULL;
|
|
strv_free(n);
|
|
free(path);
|
|
free(nce);
|
|
|
|
return r;
|
|
}
|
|
|
|
DEFINE_CONFIG_PARSE_ENUM(config_parse_service_type, service_type, ServiceType, "Failed to parse service type");
|
|
DEFINE_CONFIG_PARSE_ENUM(config_parse_service_restart, service_restart, ServiceRestart, "Failed to parse service restart specifier");
|
|
|
|
int config_parse_socket_bindtodevice(const char* unit,
|
|
const char *filename,
|
|
unsigned line,
|
|
const char *section,
|
|
const char *lvalue,
|
|
int ltype,
|
|
const char *rvalue,
|
|
void *data,
|
|
void *userdata) {
|
|
|
|
Socket *s = data;
|
|
char *n;
|
|
|
|
assert(filename);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
assert(data);
|
|
|
|
if (rvalue[0] && !streq(rvalue, "*")) {
|
|
n = strdup(rvalue);
|
|
if (!n)
|
|
return log_oom();
|
|
} else
|
|
n = NULL;
|
|
|
|
free(s->bind_to_device);
|
|
s->bind_to_device = n;
|
|
|
|
return 0;
|
|
}
|
|
|
|
DEFINE_CONFIG_PARSE_ENUM(config_parse_output, exec_output, ExecOutput, "Failed to parse output specifier");
|
|
DEFINE_CONFIG_PARSE_ENUM(config_parse_input, exec_input, ExecInput, "Failed to parse input specifier");
|
|
|
|
int config_parse_exec_io_class(const char *unit,
|
|
const char *filename,
|
|
unsigned line,
|
|
const char *section,
|
|
const char *lvalue,
|
|
int ltype,
|
|
const char *rvalue,
|
|
void *data,
|
|
void *userdata) {
|
|
|
|
ExecContext *c = data;
|
|
int x;
|
|
|
|
assert(filename);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
assert(data);
|
|
|
|
x = ioprio_class_from_string(rvalue);
|
|
if (x < 0) {
|
|
log_syntax(unit, LOG_ERR, filename, line, EINVAL,
|
|
"Failed to parse IO scheduling class, ignoring: %s", rvalue);
|
|
return 0;
|
|
}
|
|
|
|
c->ioprio = IOPRIO_PRIO_VALUE(x, IOPRIO_PRIO_DATA(c->ioprio));
|
|
c->ioprio_set = true;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_exec_io_priority(const char *unit,
|
|
const char *filename,
|
|
unsigned line,
|
|
const char *section,
|
|
const char *lvalue,
|
|
int ltype,
|
|
const char *rvalue,
|
|
void *data,
|
|
void *userdata) {
|
|
|
|
ExecContext *c = data;
|
|
int i, r;
|
|
|
|
assert(filename);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
assert(data);
|
|
|
|
r = safe_atoi(rvalue, &i);
|
|
if (r < 0 || i < 0 || i >= IOPRIO_BE_NR) {
|
|
log_syntax(unit, LOG_ERR, filename, line, -r,
|
|
"Failed to parse IO priority, ignoring: %s", rvalue);
|
|
return 0;
|
|
}
|
|
|
|
c->ioprio = IOPRIO_PRIO_VALUE(IOPRIO_PRIO_CLASS(c->ioprio), i);
|
|
c->ioprio_set = true;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_exec_cpu_sched_policy(const char *unit,
|
|
const char *filename,
|
|
unsigned line,
|
|
const char *section,
|
|
const char *lvalue,
|
|
int ltype,
|
|
const char *rvalue,
|
|
void *data,
|
|
void *userdata) {
|
|
|
|
|
|
ExecContext *c = data;
|
|
int x;
|
|
|
|
assert(filename);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
assert(data);
|
|
|
|
x = sched_policy_from_string(rvalue);
|
|
if (x < 0) {
|
|
log_syntax(unit, LOG_ERR, filename, line, -x,
|
|
"Failed to parse CPU scheduling policy, ignoring: %s", rvalue);
|
|
return 0;
|
|
}
|
|
|
|
c->cpu_sched_policy = x;
|
|
/* Moving to or from real-time policy? We need to adjust the priority */
|
|
c->cpu_sched_priority = CLAMP(c->cpu_sched_priority, sched_get_priority_min(x), sched_get_priority_max(x));
|
|
c->cpu_sched_set = true;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_exec_cpu_sched_prio(const char *unit,
|
|
const char *filename,
|
|
unsigned line,
|
|
const char *section,
|
|
const char *lvalue,
|
|
int ltype,
|
|
const char *rvalue,
|
|
void *data,
|
|
void *userdata) {
|
|
|
|
ExecContext *c = data;
|
|
int i, min, max, r;
|
|
|
|
assert(filename);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
assert(data);
|
|
|
|
r = safe_atoi(rvalue, &i);
|
|
if (r < 0) {
|
|
log_syntax(unit, LOG_ERR, filename, line, -r,
|
|
"Failed to parse CPU scheduling policy, ignoring: %s", rvalue);
|
|
return 0;
|
|
}
|
|
|
|
/* On Linux RR/FIFO range from 1 to 99 and OTHER/BATCH may only be 0 */
|
|
min = sched_get_priority_min(c->cpu_sched_policy);
|
|
max = sched_get_priority_max(c->cpu_sched_policy);
|
|
|
|
if (i < min || i > max) {
|
|
log_syntax(unit, LOG_ERR, filename, line, ERANGE,
|
|
"CPU scheduling priority is out of range, ignoring: %s", rvalue);
|
|
return 0;
|
|
}
|
|
|
|
c->cpu_sched_priority = i;
|
|
c->cpu_sched_set = true;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_exec_cpu_affinity(const char *unit,
|
|
const char *filename,
|
|
unsigned line,
|
|
const char *section,
|
|
const char *lvalue,
|
|
int ltype,
|
|
const char *rvalue,
|
|
void *data,
|
|
void *userdata) {
|
|
|
|
ExecContext *c = data;
|
|
char *w;
|
|
size_t l;
|
|
char *state;
|
|
|
|
assert(filename);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
assert(data);
|
|
|
|
if (isempty(rvalue)) {
|
|
/* An empty assignment resets the CPU list */
|
|
if (c->cpuset)
|
|
CPU_FREE(c->cpuset);
|
|
c->cpuset = NULL;
|
|
return 0;
|
|
}
|
|
|
|
FOREACH_WORD_QUOTED(w, l, rvalue, state) {
|
|
_cleanup_free_ char *t = NULL;
|
|
int r;
|
|
unsigned cpu;
|
|
|
|
t = strndup(w, l);
|
|
if (!t)
|
|
return log_oom();
|
|
|
|
r = safe_atou(t, &cpu);
|
|
|
|
if (!c->cpuset) {
|
|
c->cpuset = cpu_set_malloc(&c->cpuset_ncpus);
|
|
if (!c->cpuset)
|
|
return log_oom();
|
|
}
|
|
|
|
if (r < 0 || cpu >= c->cpuset_ncpus) {
|
|
log_syntax(unit, LOG_ERR, filename, line, ERANGE,
|
|
"Failed to parse CPU affinity '%s', ignoring: %s", t, rvalue);
|
|
return 0;
|
|
}
|
|
|
|
CPU_SET_S(cpu, CPU_ALLOC_SIZE(c->cpuset_ncpus), c->cpuset);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_exec_capabilities(const char *unit,
|
|
const char *filename,
|
|
unsigned line,
|
|
const char *section,
|
|
const char *lvalue,
|
|
int ltype,
|
|
const char *rvalue,
|
|
void *data,
|
|
void *userdata) {
|
|
|
|
ExecContext *c = data;
|
|
cap_t cap;
|
|
|
|
assert(filename);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
assert(data);
|
|
|
|
cap = cap_from_text(rvalue);
|
|
if (!cap) {
|
|
log_syntax(unit, LOG_ERR, filename, line, errno,
|
|
"Failed to parse capabilities, ignoring: %s", rvalue);
|
|
return 0;
|
|
}
|
|
|
|
if (c->capabilities)
|
|
cap_free(c->capabilities);
|
|
c->capabilities = cap;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_exec_secure_bits(const char *unit,
|
|
const char *filename,
|
|
unsigned line,
|
|
const char *section,
|
|
const char *lvalue,
|
|
int ltype,
|
|
const char *rvalue,
|
|
void *data,
|
|
void *userdata) {
|
|
|
|
ExecContext *c = data;
|
|
char *w;
|
|
size_t l;
|
|
char *state;
|
|
|
|
assert(filename);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
assert(data);
|
|
|
|
if (isempty(rvalue)) {
|
|
/* An empty assignment resets the field */
|
|
c->secure_bits = 0;
|
|
return 0;
|
|
}
|
|
|
|
FOREACH_WORD_QUOTED(w, l, rvalue, state) {
|
|
if (first_word(w, "keep-caps"))
|
|
c->secure_bits |= 1<<SECURE_KEEP_CAPS;
|
|
else if (first_word(w, "keep-caps-locked"))
|
|
c->secure_bits |= 1<<SECURE_KEEP_CAPS_LOCKED;
|
|
else if (first_word(w, "no-setuid-fixup"))
|
|
c->secure_bits |= 1<<SECURE_NO_SETUID_FIXUP;
|
|
else if (first_word(w, "no-setuid-fixup-locked"))
|
|
c->secure_bits |= 1<<SECURE_NO_SETUID_FIXUP_LOCKED;
|
|
else if (first_word(w, "noroot"))
|
|
c->secure_bits |= 1<<SECURE_NOROOT;
|
|
else if (first_word(w, "noroot-locked"))
|
|
c->secure_bits |= 1<<SECURE_NOROOT_LOCKED;
|
|
else {
|
|
log_syntax(unit, LOG_ERR, filename, line, EINVAL,
|
|
"Failed to parse secure bits, ignoring: %s", rvalue);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_bounding_set(const char *unit,
|
|
const char *filename,
|
|
unsigned line,
|
|
const char *section,
|
|
const char *lvalue,
|
|
int ltype,
|
|
const char *rvalue,
|
|
void *data,
|
|
void *userdata) {
|
|
|
|
uint64_t *capability_bounding_set_drop = data;
|
|
char *w;
|
|
size_t l;
|
|
char *state;
|
|
bool invert = false;
|
|
uint64_t sum = 0;
|
|
|
|
assert(filename);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
assert(data);
|
|
|
|
if (rvalue[0] == '~') {
|
|
invert = true;
|
|
rvalue++;
|
|
}
|
|
|
|
/* Note that we store this inverted internally, since the
|
|
* kernel wants it like this. But we actually expose it
|
|
* non-inverted everywhere to have a fully normalized
|
|
* interface. */
|
|
|
|
FOREACH_WORD_QUOTED(w, l, rvalue, state) {
|
|
_cleanup_free_ char *t = NULL;
|
|
int r;
|
|
cap_value_t cap;
|
|
|
|
t = strndup(w, l);
|
|
if (!t)
|
|
return log_oom();
|
|
|
|
r = cap_from_name(t, &cap);
|
|
if (r < 0) {
|
|
log_syntax(unit, LOG_ERR, filename, line, errno,
|
|
"Failed to parse capability in bounding set, ignoring: %s", t);
|
|
continue;
|
|
}
|
|
|
|
sum |= ((uint64_t) 1ULL) << (uint64_t) cap;
|
|
}
|
|
|
|
if (invert)
|
|
*capability_bounding_set_drop |= sum;
|
|
else
|
|
*capability_bounding_set_drop |= ~sum;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_limit(const char *unit,
|
|
const char *filename,
|
|
unsigned line,
|
|
const char *section,
|
|
const char *lvalue,
|
|
int ltype,
|
|
const char *rvalue,
|
|
void *data,
|
|
void *userdata) {
|
|
|
|
struct rlimit **rl = data;
|
|
unsigned long long u;
|
|
|
|
assert(filename);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
assert(data);
|
|
|
|
rl += ltype;
|
|
|
|
if (streq(rvalue, "infinity"))
|
|
u = (unsigned long long) RLIM_INFINITY;
|
|
else {
|
|
int r;
|
|
|
|
r = safe_atollu(rvalue, &u);
|
|
if (r < 0) {
|
|
log_syntax(unit, LOG_ERR, filename, line, -r,
|
|
"Failed to parse resource value, ignoring: %s", rvalue);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
if (!*rl) {
|
|
*rl = new(struct rlimit, 1);
|
|
if (!*rl)
|
|
return log_oom();
|
|
}
|
|
|
|
(*rl)->rlim_cur = (*rl)->rlim_max = (rlim_t) u;
|
|
return 0;
|
|
}
|
|
|
|
#ifdef HAVE_SYSV_COMPAT
|
|
int config_parse_sysv_priority(const char *unit,
|
|
const char *filename,
|
|
unsigned line,
|
|
const char *section,
|
|
const char *lvalue,
|
|
int ltype,
|
|
const char *rvalue,
|
|
void *data,
|
|
void *userdata) {
|
|
|
|
int *priority = data;
|
|
int i, r;
|
|
|
|
assert(filename);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
assert(data);
|
|
|
|
r = safe_atoi(rvalue, &i);
|
|
if (r < 0 || i < 0) {
|
|
log_syntax(unit, LOG_ERR, filename, line, -r,
|
|
"Failed to parse SysV start priority, ignoring: %s", rvalue);
|
|
return 0;
|
|
}
|
|
|
|
*priority = (int) i;
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
int config_parse_fsck_passno(const char *unit,
|
|
const char *filename,
|
|
unsigned line,
|
|
const char *section,
|
|
const char *lvalue,
|
|
int ltype,
|
|
const char *rvalue,
|
|
void *data,
|
|
void *userdata) {
|
|
|
|
int *passno = data;
|
|
int i, r;
|
|
|
|
assert(filename);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
assert(data);
|
|
|
|
r = safe_atoi(rvalue, &i);
|
|
if (r || i < 0) {
|
|
log_syntax(unit, LOG_ERR, filename, line, -r,
|
|
"Failed to parse fsck pass number, ignoring: %s", rvalue);
|
|
return 0;
|
|
}
|
|
|
|
*passno = (int) i;
|
|
return 0;
|
|
}
|
|
|
|
DEFINE_CONFIG_PARSE_ENUM(config_parse_kill_mode, kill_mode, KillMode, "Failed to parse kill mode");
|
|
|
|
int config_parse_kill_signal(const char *unit,
|
|
const char *filename,
|
|
unsigned line,
|
|
const char *section,
|
|
const char *lvalue,
|
|
int ltype,
|
|
const char *rvalue,
|
|
void *data,
|
|
void *userdata) {
|
|
|
|
int *sig = data;
|
|
int r;
|
|
|
|
assert(filename);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
assert(sig);
|
|
|
|
r = signal_from_string_try_harder(rvalue);
|
|
if (r <= 0) {
|
|
log_syntax(unit, LOG_ERR, filename, line, -r,
|
|
"Failed to parse kill signal, ignoring: %s", rvalue);
|
|
return 0;
|
|
}
|
|
|
|
*sig = r;
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_exec_mount_flags(const char *unit,
|
|
const char *filename,
|
|
unsigned line,
|
|
const char *section,
|
|
const char *lvalue,
|
|
int ltype,
|
|
const char *rvalue,
|
|
void *data,
|
|
void *userdata) {
|
|
|
|
ExecContext *c = data;
|
|
char *w;
|
|
size_t l;
|
|
char *state;
|
|
unsigned long flags = 0;
|
|
|
|
assert(filename);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
assert(data);
|
|
|
|
FOREACH_WORD_SEPARATOR(w, l, rvalue, ", ", state) {
|
|
_cleanup_free_ char *t;
|
|
|
|
t = strndup(w, l);
|
|
if (!t)
|
|
return log_oom();
|
|
|
|
if (streq(t, "shared"))
|
|
flags |= MS_SHARED;
|
|
else if (streq(t, "slave"))
|
|
flags |= MS_SLAVE;
|
|
else if (streq(w, "private"))
|
|
flags |= MS_PRIVATE;
|
|
else {
|
|
log_syntax(unit, LOG_ERR, filename, line, EINVAL,
|
|
"Failed to parse mount flag %s, ignoring: %s",
|
|
t, rvalue);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
c->mount_flags = flags;
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_timer(const char *unit,
|
|
const char *filename,
|
|
unsigned line,
|
|
const char *section,
|
|
const char *lvalue,
|
|
int ltype,
|
|
const char *rvalue,
|
|
void *data,
|
|
void *userdata) {
|
|
|
|
Timer *t = data;
|
|
usec_t u = 0;
|
|
TimerValue *v;
|
|
TimerBase b;
|
|
CalendarSpec *c = NULL;
|
|
clockid_t id;
|
|
|
|
assert(filename);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
assert(data);
|
|
|
|
if (isempty(rvalue)) {
|
|
/* Empty assignment resets list */
|
|
timer_free_values(t);
|
|
return 0;
|
|
}
|
|
|
|
b = timer_base_from_string(lvalue);
|
|
if (b < 0) {
|
|
log_syntax(unit, LOG_ERR, filename, line, -b,
|
|
"Failed to parse timer base, ignoring: %s", lvalue);
|
|
return 0;
|
|
}
|
|
|
|
if (b == TIMER_CALENDAR) {
|
|
if (calendar_spec_from_string(rvalue, &c) < 0) {
|
|
log_syntax(unit, LOG_ERR, filename, line, EINVAL,
|
|
"Failed to parse calendar specification, ignoring: %s",
|
|
rvalue);
|
|
return 0;
|
|
}
|
|
|
|
id = CLOCK_REALTIME;
|
|
} else {
|
|
if (parse_sec(rvalue, &u) < 0) {
|
|
log_syntax(unit, LOG_ERR, filename, line, EINVAL,
|
|
"Failed to parse timer value, ignoring: %s",
|
|
rvalue);
|
|
return 0;
|
|
}
|
|
|
|
id = CLOCK_MONOTONIC;
|
|
}
|
|
|
|
v = new0(TimerValue, 1);
|
|
if (!v)
|
|
return log_oom();
|
|
|
|
v->base = b;
|
|
v->clock_id = id;
|
|
v->value = u;
|
|
v->calendar_spec = c;
|
|
|
|
LIST_PREPEND(TimerValue, value, t->values, v);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_trigger_unit(
|
|
const char *unit,
|
|
const char *filename,
|
|
unsigned line,
|
|
const char *section,
|
|
const char *lvalue,
|
|
int ltype,
|
|
const char *rvalue,
|
|
void *data,
|
|
void *userdata) {
|
|
|
|
_cleanup_free_ char *p = NULL;
|
|
Unit *u = data;
|
|
UnitType type;
|
|
int r;
|
|
|
|
assert(filename);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
assert(data);
|
|
|
|
if (!set_isempty(u->dependencies[UNIT_TRIGGERS])) {
|
|
log_syntax(unit, LOG_ERR, filename, line, EINVAL,
|
|
"Multiple units to trigger specified, ignoring: %s", rvalue);
|
|
return 0;
|
|
}
|
|
|
|
r = unit_name_printf(u, rvalue, &p);
|
|
if (r < 0)
|
|
log_syntax(unit, LOG_ERR, filename, line, -r,
|
|
"Failed to resolve specifiers, ignoring: %s", strerror(-r));
|
|
|
|
type = unit_name_to_type(p ?: rvalue);
|
|
if (type < 0) {
|
|
log_syntax(unit, LOG_ERR, filename, line, EINVAL,
|
|
"Unit type not valid, ignoring: %s", rvalue);
|
|
return 0;
|
|
}
|
|
|
|
if (type == u->type) {
|
|
log_syntax(unit, LOG_ERR, filename, line, EINVAL,
|
|
"Trigger cannot be of same type, ignoring: %s", rvalue);
|
|
return 0;
|
|
}
|
|
|
|
r = unit_add_two_dependencies_by_name(u, UNIT_BEFORE, UNIT_TRIGGERS, p ?: rvalue, NULL, true);
|
|
if (r < 0) {
|
|
log_syntax(unit, LOG_ERR, filename, line, -r,
|
|
"Failed to add trigger on %s, ignoring: %s", p ?: rvalue, strerror(-r));
|
|
return 0;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_path_spec(const char *unit,
|
|
const char *filename,
|
|
unsigned line,
|
|
const char *section,
|
|
const char *lvalue,
|
|
int ltype,
|
|
const char *rvalue,
|
|
void *data,
|
|
void *userdata) {
|
|
|
|
Path *p = data;
|
|
PathSpec *s;
|
|
PathType b;
|
|
_cleanup_free_ char *k = NULL;
|
|
int r;
|
|
|
|
assert(filename);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
assert(data);
|
|
|
|
if (isempty(rvalue)) {
|
|
/* Empty assignment clears list */
|
|
path_free_specs(p);
|
|
return 0;
|
|
}
|
|
|
|
b = path_type_from_string(lvalue);
|
|
if (b < 0) {
|
|
log_syntax(unit, LOG_ERR, filename, line, EINVAL,
|
|
"Failed to parse path type, ignoring: %s", lvalue);
|
|
return 0;
|
|
}
|
|
|
|
r = unit_full_printf(UNIT(p), rvalue, &k);
|
|
if (r < 0) {
|
|
k = strdup(rvalue);
|
|
if (!k)
|
|
return log_oom();
|
|
else
|
|
log_syntax(unit, LOG_ERR, filename, line, -r,
|
|
"Failed to resolve unit specifiers on %s. Ignoring.",
|
|
rvalue);
|
|
}
|
|
|
|
if (!path_is_absolute(k)) {
|
|
log_syntax(unit, LOG_ERR, filename, line, EINVAL,
|
|
"Path is not absolute, ignoring: %s", k);
|
|
return 0;
|
|
}
|
|
|
|
s = new0(PathSpec, 1);
|
|
if (!s)
|
|
return log_oom();
|
|
|
|
s->path = path_kill_slashes(k);
|
|
k = NULL;
|
|
s->type = b;
|
|
s->inotify_fd = -1;
|
|
|
|
LIST_PREPEND(PathSpec, spec, p->specs, s);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_socket_service(const char *unit,
|
|
const char *filename,
|
|
unsigned line,
|
|
const char *section,
|
|
const char *lvalue,
|
|
int ltype,
|
|
const char *rvalue,
|
|
void *data,
|
|
void *userdata) {
|
|
|
|
Socket *s = data;
|
|
int r;
|
|
DBusError error;
|
|
Unit *x;
|
|
_cleanup_free_ char *p = NULL;
|
|
|
|
assert(filename);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
assert(data);
|
|
|
|
dbus_error_init(&error);
|
|
|
|
r = unit_name_printf(UNIT(s), rvalue, &p);
|
|
if (r < 0)
|
|
log_syntax(unit, LOG_ERR, filename, line, -r,
|
|
"Failed to resolve specifiers, ignoring: %s", rvalue);
|
|
|
|
if (!endswith(p ?: rvalue, ".service")) {
|
|
log_syntax(unit, LOG_ERR, filename, line, EINVAL,
|
|
"Unit must be of type service, ignoring: %s", rvalue);
|
|
return 0;
|
|
}
|
|
|
|
r = manager_load_unit(UNIT(s)->manager, p ?: rvalue, NULL, &error, &x);
|
|
if (r < 0) {
|
|
log_syntax(unit, LOG_ERR, filename, line, r,
|
|
"Failed to load unit %s, ignoring: %s",
|
|
rvalue, bus_error(&error, r));
|
|
dbus_error_free(&error);
|
|
return 0;
|
|
}
|
|
|
|
unit_ref_set(&s->service, x);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_service_sockets(const char *unit,
|
|
const char *filename,
|
|
unsigned line,
|
|
const char *section,
|
|
const char *lvalue,
|
|
int ltype,
|
|
const char *rvalue,
|
|
void *data,
|
|
void *userdata) {
|
|
|
|
Service *s = data;
|
|
int r;
|
|
char *state, *w;
|
|
size_t l;
|
|
|
|
assert(filename);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
assert(data);
|
|
|
|
FOREACH_WORD_QUOTED(w, l, rvalue, state) {
|
|
_cleanup_free_ char *t = NULL, *k = NULL;
|
|
|
|
t = strndup(w, l);
|
|
if (!t)
|
|
return log_oom();
|
|
|
|
r = unit_name_printf(UNIT(s), t, &k);
|
|
if (r < 0)
|
|
log_syntax(unit, LOG_ERR, filename, line, -r,
|
|
"Failed to resolve specifiers, ignoring: %s", strerror(-r));
|
|
|
|
if (!endswith(k ?: t, ".socket")) {
|
|
log_syntax(unit, LOG_ERR, filename, line, EINVAL,
|
|
"Unit must be of type socket, ignoring: %s", k ?: t);
|
|
continue;
|
|
}
|
|
|
|
r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_WANTS, UNIT_AFTER, k ?: t, NULL, true);
|
|
if (r < 0)
|
|
log_syntax(unit, LOG_ERR, filename, line, -r,
|
|
"Failed to add dependency on %s, ignoring: %s",
|
|
k ?: t, strerror(-r));
|
|
|
|
r = unit_add_dependency_by_name(UNIT(s), UNIT_TRIGGERED_BY, k ?: t, NULL, true);
|
|
if (r < 0)
|
|
return r;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_service_timeout(const char *unit,
|
|
const char *filename,
|
|
unsigned line,
|
|
const char *section,
|
|
const char *lvalue,
|
|
int ltype,
|
|
const char *rvalue,
|
|
void *data,
|
|
void *userdata) {
|
|
|
|
Service *s = userdata;
|
|
int r;
|
|
|
|
assert(filename);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
assert(s);
|
|
|
|
r = config_parse_sec(unit, filename, line, section, lvalue, ltype,
|
|
rvalue, data, userdata);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
if (streq(lvalue, "TimeoutSec")) {
|
|
s->start_timeout_defined = true;
|
|
s->timeout_stop_usec = s->timeout_start_usec;
|
|
} else if (streq(lvalue, "TimeoutStartSec"))
|
|
s->start_timeout_defined = true;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_unit_env_file(const char *unit,
|
|
const char *filename,
|
|
unsigned line,
|
|
const char *section,
|
|
const char *lvalue,
|
|
int ltype,
|
|
const char *rvalue,
|
|
void *data,
|
|
void *userdata) {
|
|
|
|
char ***env = data;
|
|
Unit *u = userdata;
|
|
_cleanup_free_ char *n = NULL;
|
|
const char *s;
|
|
int r;
|
|
|
|
assert(filename);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
assert(data);
|
|
|
|
if (isempty(rvalue)) {
|
|
/* Empty assignment frees the list */
|
|
strv_free(*env);
|
|
*env = NULL;
|
|
return 0;
|
|
}
|
|
|
|
r = unit_full_printf(u, rvalue, &n);
|
|
if (r < 0)
|
|
log_syntax(unit, LOG_ERR, filename, line, r,
|
|
"Failed to resolve specifiers, ignoring: %s", rvalue);
|
|
|
|
s = n ?: rvalue;
|
|
if (!path_is_absolute(s[0] == '-' ? s + 1 : s)) {
|
|
log_syntax(unit, LOG_ERR, filename, line, EINVAL,
|
|
"Path '%s' is not absolute, ignoring.", s);
|
|
return 0;
|
|
}
|
|
|
|
r = strv_extend(env, s);
|
|
if (r < 0)
|
|
return log_oom();
|
|
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_environ(const char *unit,
|
|
const char *filename,
|
|
unsigned line,
|
|
const char *section,
|
|
const char *lvalue,
|
|
int ltype,
|
|
const char *rvalue,
|
|
void *data,
|
|
void *userdata) {
|
|
|
|
Unit *u = userdata;
|
|
char*** env = data, *w, *state;
|
|
size_t l;
|
|
_cleanup_free_ char *k = NULL;
|
|
int r;
|
|
|
|
assert(filename);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
assert(data);
|
|
|
|
if (isempty(rvalue)) {
|
|
/* Empty assignment resets the list */
|
|
strv_free(*env);
|
|
*env = NULL;
|
|
return 0;
|
|
}
|
|
|
|
if (u) {
|
|
r = unit_full_printf(u, rvalue, &k);
|
|
if (r < 0)
|
|
log_syntax(unit, LOG_ERR, filename, line, -r,
|
|
"Failed to resolve specifiers, ignoring: %s", rvalue);
|
|
}
|
|
|
|
if (!k)
|
|
k = strdup(rvalue);
|
|
if (!k)
|
|
return log_oom();
|
|
|
|
FOREACH_WORD_QUOTED(w, l, k, state) {
|
|
_cleanup_free_ char *n;
|
|
char **x;
|
|
|
|
n = cunescape_length(w, l);
|
|
if (!n)
|
|
return log_oom();
|
|
|
|
if (!env_assignment_is_valid(n)) {
|
|
log_syntax(unit, LOG_ERR, filename, line, EINVAL,
|
|
"Invalid environment assignment, ignoring: %s", rvalue);
|
|
continue;
|
|
}
|
|
|
|
x = strv_env_set(*env, n);
|
|
if (!x)
|
|
return log_oom();
|
|
|
|
strv_free(*env);
|
|
*env = x;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_ip_tos(const char *unit,
|
|
const char *filename,
|
|
unsigned line,
|
|
const char *section,
|
|
const char *lvalue,
|
|
int ltype,
|
|
const char *rvalue,
|
|
void *data,
|
|
void *userdata) {
|
|
|
|
int *ip_tos = data, x;
|
|
|
|
assert(filename);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
assert(data);
|
|
|
|
x = ip_tos_from_string(rvalue);
|
|
if (x < 0) {
|
|
log_syntax(unit, LOG_ERR, filename, line, EINVAL,
|
|
"Failed to parse IP TOS value, ignoring: %s", rvalue);
|
|
return 0;
|
|
}
|
|
|
|
*ip_tos = x;
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_unit_condition_path(const char *unit,
|
|
const char *filename,
|
|
unsigned line,
|
|
const char *section,
|
|
const char *lvalue,
|
|
int ltype,
|
|
const char *rvalue,
|
|
void *data,
|
|
void *userdata) {
|
|
|
|
ConditionType cond = ltype;
|
|
Unit *u = data;
|
|
bool trigger, negate;
|
|
Condition *c;
|
|
_cleanup_free_ char *p = NULL;
|
|
int r;
|
|
|
|
assert(filename);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
assert(data);
|
|
|
|
if (isempty(rvalue)) {
|
|
/* Empty assignment resets the list */
|
|
condition_free_list(u->conditions);
|
|
u->conditions = NULL;
|
|
return 0;
|
|
}
|
|
|
|
trigger = rvalue[0] == '|';
|
|
if (trigger)
|
|
rvalue++;
|
|
|
|
negate = rvalue[0] == '!';
|
|
if (negate)
|
|
rvalue++;
|
|
|
|
r = unit_full_printf(u, rvalue, &p);
|
|
if (r < 0)
|
|
log_syntax(unit, LOG_ERR, filename, line, -r,
|
|
"Failed to resolve specifiers, ignoring: %s", rvalue);
|
|
if (!p) {
|
|
p = strdup(rvalue);
|
|
if (!p)
|
|
return log_oom();
|
|
}
|
|
|
|
if (!path_is_absolute(p)) {
|
|
log_syntax(unit, LOG_ERR, filename, line, EINVAL,
|
|
"Path in condition not absolute, ignoring: %s", p);
|
|
return 0;
|
|
}
|
|
|
|
c = condition_new(cond, p, trigger, negate);
|
|
if (!c)
|
|
return log_oom();
|
|
|
|
LIST_PREPEND(Condition, conditions, u->conditions, c);
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_unit_condition_string(const char *unit,
|
|
const char *filename,
|
|
unsigned line,
|
|
const char *section,
|
|
const char *lvalue,
|
|
int ltype,
|
|
const char *rvalue,
|
|
void *data,
|
|
void *userdata) {
|
|
|
|
ConditionType cond = ltype;
|
|
Unit *u = data;
|
|
bool trigger, negate;
|
|
Condition *c;
|
|
_cleanup_free_ char *s = NULL;
|
|
int r;
|
|
|
|
assert(filename);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
assert(data);
|
|
|
|
if (isempty(rvalue)) {
|
|
/* Empty assignment resets the list */
|
|
condition_free_list(u->conditions);
|
|
u->conditions = NULL;
|
|
return 0;
|
|
}
|
|
|
|
trigger = rvalue[0] == '|';
|
|
if (trigger)
|
|
rvalue++;
|
|
|
|
negate = rvalue[0] == '!';
|
|
if (negate)
|
|
rvalue++;
|
|
|
|
r = unit_full_printf(u, rvalue, &s);
|
|
if (r < 0)
|
|
log_syntax(unit, LOG_ERR, filename, line, -r,
|
|
"Failed to resolve specifiers, ignoring: %s", rvalue);
|
|
if (!s) {
|
|
s = strdup(rvalue);
|
|
if (!s)
|
|
return log_oom();
|
|
}
|
|
|
|
c = condition_new(cond, s, trigger, negate);
|
|
if (!c)
|
|
return log_oom();
|
|
|
|
LIST_PREPEND(Condition, conditions, u->conditions, c);
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_unit_condition_null(const char *unit,
|
|
const char *filename,
|
|
unsigned line,
|
|
const char *section,
|
|
const char *lvalue,
|
|
int ltype,
|
|
const char *rvalue,
|
|
void *data,
|
|
void *userdata) {
|
|
|
|
Unit *u = data;
|
|
Condition *c;
|
|
bool trigger, negate;
|
|
int b;
|
|
|
|
assert(filename);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
assert(data);
|
|
|
|
if (isempty(rvalue)) {
|
|
/* Empty assignment resets the list */
|
|
condition_free_list(u->conditions);
|
|
u->conditions = NULL;
|
|
return 0;
|
|
}
|
|
|
|
trigger = rvalue[0] == '|';
|
|
if (trigger)
|
|
rvalue++;
|
|
|
|
negate = rvalue[0] == '!';
|
|
if (negate)
|
|
rvalue++;
|
|
|
|
b = parse_boolean(rvalue);
|
|
if (b < 0) {
|
|
log_syntax(unit, LOG_ERR, filename, line, -b,
|
|
"Failed to parse boolean value in condition, ignoring: %s",
|
|
rvalue);
|
|
return 0;
|
|
}
|
|
|
|
if (!b)
|
|
negate = !negate;
|
|
|
|
c = condition_new(CONDITION_NULL, NULL, trigger, negate);
|
|
if (!c)
|
|
return log_oom();
|
|
|
|
LIST_PREPEND(Condition, conditions, u->conditions, c);
|
|
return 0;
|
|
}
|
|
|
|
DEFINE_CONFIG_PARSE_ENUM(config_parse_notify_access, notify_access, NotifyAccess, "Failed to parse notify access specifier");
|
|
DEFINE_CONFIG_PARSE_ENUM(config_parse_start_limit_action, start_limit_action, StartLimitAction, "Failed to parse start limit action specifier");
|
|
|
|
int config_parse_unit_requires_mounts_for(
|
|
const char *unit,
|
|
const char *filename,
|
|
unsigned line,
|
|
const char *section,
|
|
const char *lvalue,
|
|
int ltype,
|
|
const char *rvalue,
|
|
void *data,
|
|
void *userdata) {
|
|
|
|
Unit *u = userdata;
|
|
char *state;
|
|
size_t l;
|
|
char *w;
|
|
|
|
assert(filename);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
assert(data);
|
|
|
|
FOREACH_WORD_QUOTED(w, l, rvalue, state) {
|
|
int r;
|
|
_cleanup_free_ char *n;
|
|
|
|
n = strndup(w, l);
|
|
if (!n)
|
|
return log_oom();
|
|
|
|
if (!utf8_is_valid(n)) {
|
|
log_syntax(unit, LOG_ERR, filename, line, EINVAL,
|
|
"Path is not UTF-8 clean, ignoring assignment: %s", rvalue);
|
|
continue;
|
|
}
|
|
|
|
r = unit_require_mounts_for(u, n);
|
|
if (r < 0) {
|
|
log_syntax(unit, LOG_ERR, filename, line, r,
|
|
"Failed to add required mount for, ignoring: %s", rvalue);
|
|
continue;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_documentation(const char *unit,
|
|
const char *filename,
|
|
unsigned line,
|
|
const char *section,
|
|
const char *lvalue,
|
|
int ltype,
|
|
const char *rvalue,
|
|
void *data,
|
|
void *userdata) {
|
|
|
|
Unit *u = userdata;
|
|
int r;
|
|
char **a, **b;
|
|
|
|
assert(filename);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
assert(u);
|
|
|
|
if (isempty(rvalue)) {
|
|
/* Empty assignment resets the list */
|
|
strv_free(u->documentation);
|
|
u->documentation = NULL;
|
|
return 0;
|
|
}
|
|
|
|
r = config_parse_unit_strv_printf(unit, filename, line, section, lvalue, ltype,
|
|
rvalue, data, userdata);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
for (a = b = u->documentation; a && *a; a++) {
|
|
|
|
if (is_valid_documentation_url(*a))
|
|
*(b++) = *a;
|
|
else {
|
|
log_syntax(unit, LOG_ERR, filename, line, EINVAL,
|
|
"Invalid URL, ignoring: %s", *a);
|
|
free(*a);
|
|
}
|
|
}
|
|
*b = NULL;
|
|
|
|
return r;
|
|
}
|
|
|
|
static void syscall_set(uint32_t *p, int nr) {
|
|
nr = SYSCALL_TO_INDEX(nr);
|
|
p[nr >> 4] |= 1 << (nr & 31);
|
|
}
|
|
|
|
static void syscall_unset(uint32_t *p, int nr) {
|
|
nr = SYSCALL_TO_INDEX(nr);
|
|
p[nr >> 4] &= ~(1 << (nr & 31));
|
|
}
|
|
|
|
int config_parse_syscall_filter(const char *unit,
|
|
const char *filename,
|
|
unsigned line,
|
|
const char *section,
|
|
const char *lvalue,
|
|
int ltype,
|
|
const char *rvalue,
|
|
void *data,
|
|
void *userdata) {
|
|
|
|
ExecContext *c = data;
|
|
Unit *u = userdata;
|
|
bool invert = false;
|
|
char *w;
|
|
size_t l;
|
|
char *state;
|
|
|
|
assert(filename);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
assert(u);
|
|
|
|
if (isempty(rvalue)) {
|
|
/* Empty assignment resets the list */
|
|
free(c->syscall_filter);
|
|
c->syscall_filter = NULL;
|
|
return 0;
|
|
}
|
|
|
|
if (rvalue[0] == '~') {
|
|
invert = true;
|
|
rvalue++;
|
|
}
|
|
|
|
if (!c->syscall_filter) {
|
|
size_t n;
|
|
|
|
n = (syscall_max() + 31) >> 4;
|
|
c->syscall_filter = new(uint32_t, n);
|
|
if (!c->syscall_filter)
|
|
return log_oom();
|
|
|
|
memset(c->syscall_filter, invert ? 0xFF : 0, n * sizeof(uint32_t));
|
|
|
|
/* Add these by default */
|
|
syscall_set(c->syscall_filter, __NR_execve);
|
|
syscall_set(c->syscall_filter, __NR_rt_sigreturn);
|
|
#ifdef __NR_sigreturn
|
|
syscall_set(c->syscall_filter, __NR_sigreturn);
|
|
#endif
|
|
syscall_set(c->syscall_filter, __NR_exit_group);
|
|
syscall_set(c->syscall_filter, __NR_exit);
|
|
}
|
|
|
|
FOREACH_WORD_QUOTED(w, l, rvalue, state) {
|
|
int id;
|
|
_cleanup_free_ char *t = NULL;
|
|
|
|
t = strndup(w, l);
|
|
if (!t)
|
|
return log_oom();
|
|
|
|
id = syscall_from_name(t);
|
|
if (id < 0) {
|
|
log_syntax(unit, LOG_ERR, filename, line, EINVAL,
|
|
"Failed to parse syscall, ignoring: %s", t);
|
|
continue;
|
|
}
|
|
|
|
if (invert)
|
|
syscall_unset(c->syscall_filter, id);
|
|
else
|
|
syscall_set(c->syscall_filter, id);
|
|
}
|
|
|
|
c->no_new_privileges = true;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_unit_slice(
|
|
const char *unit,
|
|
const char *filename,
|
|
unsigned line,
|
|
const char *section,
|
|
const char *lvalue,
|
|
int ltype,
|
|
const char *rvalue,
|
|
void *data,
|
|
void *userdata) {
|
|
|
|
_cleanup_free_ char *k = NULL;
|
|
Unit *u = userdata, *slice;
|
|
int r;
|
|
|
|
assert(filename);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
assert(u);
|
|
|
|
r = unit_name_printf(u, rvalue, &k);
|
|
if (r < 0)
|
|
log_syntax(unit, LOG_ERR, filename, line, -r,
|
|
"Failed to resolve unit specifiers on %s. Ignoring.", rvalue);
|
|
if (!k) {
|
|
k = strdup(rvalue);
|
|
if (!k)
|
|
return log_oom();
|
|
}
|
|
|
|
r = manager_load_unit(u->manager, k, NULL, NULL, &slice);
|
|
if (r < 0) {
|
|
log_syntax(unit, LOG_ERR, filename, line, -r,
|
|
"Failed to load slice unit %s. Ignoring.", k);
|
|
return 0;
|
|
}
|
|
|
|
if (slice->type != UNIT_SLICE) {
|
|
log_syntax(unit, LOG_ERR, filename, line, EINVAL,
|
|
"Slice unit %s is not a slice. Ignoring.", k);
|
|
return 0;
|
|
}
|
|
|
|
unit_ref_set(&u->slice, slice);
|
|
return 0;
|
|
}
|
|
|
|
DEFINE_CONFIG_PARSE_ENUM(config_parse_device_policy, cgroup_device_policy, CGroupDevicePolicy, "Failed to parse device policy");
|
|
|
|
int config_parse_cpu_shares(
|
|
const char *unit,
|
|
const char *filename,
|
|
unsigned line,
|
|
const char *section,
|
|
const char *lvalue,
|
|
int ltype,
|
|
const char *rvalue,
|
|
void *data,
|
|
void *userdata) {
|
|
|
|
CGroupContext *c = data;
|
|
unsigned long lu;
|
|
int r;
|
|
|
|
assert(filename);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
|
|
if (isempty(rvalue)) {
|
|
c->cpu_shares = 1024;
|
|
return 0;
|
|
}
|
|
|
|
r = safe_atolu(rvalue, &lu);
|
|
if (r < 0 || lu <= 0) {
|
|
log_syntax(unit, LOG_ERR, filename, line, EINVAL,
|
|
"CPU shares '%s' invalid. Ignoring.", rvalue);
|
|
return 0;
|
|
}
|
|
|
|
c->cpu_shares = lu;
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_memory_limit(
|
|
const char *unit,
|
|
const char *filename,
|
|
unsigned line,
|
|
const char *section,
|
|
const char *lvalue,
|
|
int ltype,
|
|
const char *rvalue,
|
|
void *data,
|
|
void *userdata) {
|
|
|
|
CGroupContext *c = data;
|
|
off_t bytes;
|
|
int r;
|
|
|
|
if (isempty(rvalue)) {
|
|
c->memory_limit = (uint64_t) -1;
|
|
return 0;
|
|
}
|
|
|
|
assert_cc(sizeof(uint64_t) == sizeof(off_t));
|
|
|
|
r = parse_bytes(rvalue, &bytes);
|
|
if (r < 0) {
|
|
log_syntax(unit, LOG_ERR, filename, line, EINVAL,
|
|
"Memory limit '%s' invalid. Ignoring.", rvalue);
|
|
return 0;
|
|
}
|
|
|
|
c->memory_limit = (uint64_t) bytes;
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_device_allow(
|
|
const char *unit,
|
|
const char *filename,
|
|
unsigned line,
|
|
const char *section,
|
|
const char *lvalue,
|
|
int ltype,
|
|
const char *rvalue,
|
|
void *data,
|
|
void *userdata) {
|
|
|
|
_cleanup_free_ char *path = NULL;
|
|
CGroupContext *c = data;
|
|
CGroupDeviceAllow *a;
|
|
const char *m;
|
|
size_t n;
|
|
|
|
if (isempty(rvalue)) {
|
|
while (c->device_allow)
|
|
cgroup_context_free_device_allow(c, c->device_allow);
|
|
|
|
return 0;
|
|
}
|
|
|
|
n = strcspn(rvalue, WHITESPACE);
|
|
path = strndup(rvalue, n);
|
|
if (!path)
|
|
return log_oom();
|
|
|
|
if (!path_startswith(path, "/dev")) {
|
|
log_syntax(unit, LOG_ERR, filename, line, EINVAL,
|
|
"Invalid device node path '%s'. Ignoring.", path);
|
|
return 0;
|
|
}
|
|
|
|
m = rvalue + n + strspn(rvalue + n, WHITESPACE);
|
|
if (isempty(m))
|
|
m = "rwm";
|
|
|
|
if (!in_charset(m, "rwm")) {
|
|
log_syntax(unit, LOG_ERR, filename, line, EINVAL,
|
|
"Invalid device rights '%s'. Ignoring.", m);
|
|
return 0;
|
|
}
|
|
|
|
a = new0(CGroupDeviceAllow, 1);
|
|
if (!a)
|
|
return log_oom();
|
|
|
|
a->path = path;
|
|
path = NULL;
|
|
a->r = !!strchr(m, 'r');
|
|
a->w = !!strchr(m, 'w');
|
|
a->m = !!strchr(m, 'm');
|
|
|
|
LIST_PREPEND(CGroupDeviceAllow, device_allow, c->device_allow, a);
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_blockio_weight(
|
|
const char *unit,
|
|
const char *filename,
|
|
unsigned line,
|
|
const char *section,
|
|
const char *lvalue,
|
|
int ltype,
|
|
const char *rvalue,
|
|
void *data,
|
|
void *userdata) {
|
|
|
|
CGroupContext *c = data;
|
|
unsigned long lu;
|
|
int r;
|
|
|
|
assert(filename);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
|
|
if (isempty(rvalue)) {
|
|
c->blockio_weight = 1000;
|
|
return 0;
|
|
}
|
|
|
|
r = safe_atolu(rvalue, &lu);
|
|
if (r < 0 || lu < 10 || lu > 1000) {
|
|
log_syntax(unit, LOG_ERR, filename, line, EINVAL,
|
|
"Block IO weight '%s' invalid. Ignoring.", rvalue);
|
|
return 0;
|
|
}
|
|
|
|
c->blockio_weight = lu;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_blockio_device_weight(
|
|
const char *unit,
|
|
const char *filename,
|
|
unsigned line,
|
|
const char *section,
|
|
const char *lvalue,
|
|
int ltype,
|
|
const char *rvalue,
|
|
void *data,
|
|
void *userdata) {
|
|
|
|
_cleanup_free_ char *path = NULL;
|
|
CGroupBlockIODeviceWeight *w;
|
|
CGroupContext *c = data;
|
|
unsigned long lu;
|
|
const char *weight;
|
|
size_t n;
|
|
int r;
|
|
|
|
assert(filename);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
|
|
if (isempty(rvalue)) {
|
|
while (c->blockio_device_weights)
|
|
cgroup_context_free_blockio_device_weight(c, c->blockio_device_weights);
|
|
|
|
return 0;
|
|
}
|
|
|
|
n = strcspn(rvalue, WHITESPACE);
|
|
weight = rvalue + n;
|
|
if (!*weight) {
|
|
log_syntax(unit, LOG_ERR, filename, line, EINVAL,
|
|
"Expected block device and device weight. Ignoring.");
|
|
return 0;
|
|
}
|
|
|
|
path = strndup(rvalue, n);
|
|
if (!path)
|
|
return log_oom();
|
|
|
|
if (!path_startswith(path, "/dev")) {
|
|
log_syntax(unit, LOG_ERR, filename, line, EINVAL,
|
|
"Invalid device node path '%s'. Ignoring.", path);
|
|
return 0;
|
|
}
|
|
|
|
weight += strspn(weight, WHITESPACE);
|
|
r = safe_atolu(weight, &lu);
|
|
if (r < 0 || lu < 10 || lu > 1000) {
|
|
log_syntax(unit, LOG_ERR, filename, line, EINVAL,
|
|
"Block IO weight '%s' invalid. Ignoring.", rvalue);
|
|
return 0;
|
|
}
|
|
|
|
|
|
w = new0(CGroupBlockIODeviceWeight, 1);
|
|
if (!w)
|
|
return log_oom();
|
|
|
|
w->path = path;
|
|
path = NULL;
|
|
|
|
w->weight = lu;
|
|
|
|
LIST_PREPEND(CGroupBlockIODeviceWeight, device_weights, c->blockio_device_weights, w);
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_blockio_bandwidth(
|
|
const char *unit,
|
|
const char *filename,
|
|
unsigned line,
|
|
const char *section,
|
|
const char *lvalue,
|
|
int ltype,
|
|
const char *rvalue,
|
|
void *data,
|
|
void *userdata) {
|
|
|
|
_cleanup_free_ char *path = NULL;
|
|
CGroupBlockIODeviceBandwidth *b;
|
|
CGroupContext *c = data;
|
|
const char *bandwidth;
|
|
off_t bytes;
|
|
bool read;
|
|
size_t n;
|
|
int r;
|
|
|
|
assert(filename);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
|
|
read = streq("BlockIOReadBandwidth", lvalue);
|
|
|
|
if (isempty(rvalue)) {
|
|
CGroupBlockIODeviceBandwidth *next;
|
|
|
|
LIST_FOREACH_SAFE (device_bandwidths, b, next, c->blockio_device_bandwidths)
|
|
if (b->read == read)
|
|
cgroup_context_free_blockio_device_bandwidth(c, b);
|
|
|
|
return 0;
|
|
}
|
|
|
|
n = strcspn(rvalue, WHITESPACE);
|
|
bandwidth = rvalue + n;
|
|
bandwidth += strspn(bandwidth, WHITESPACE);
|
|
|
|
if (!*bandwidth) {
|
|
log_syntax(unit, LOG_ERR, filename, line, EINVAL,
|
|
"Expected space separated pair of device node and bandwidth. Ignoring.");
|
|
return 0;
|
|
}
|
|
|
|
path = strndup(rvalue, n);
|
|
if (!path)
|
|
return log_oom();
|
|
|
|
if (!path_startswith(path, "/dev")) {
|
|
log_syntax(unit, LOG_ERR, filename, line, EINVAL,
|
|
"Invalid device node path '%s'. Ignoring.", path);
|
|
return 0;
|
|
}
|
|
|
|
r = parse_bytes(bandwidth, &bytes);
|
|
if (r < 0 || bytes <= 0) {
|
|
log_syntax(unit, LOG_ERR, filename, line, EINVAL,
|
|
"Block IO Bandwidth '%s' invalid. Ignoring.", rvalue);
|
|
return 0;
|
|
}
|
|
|
|
b = new0(CGroupBlockIODeviceBandwidth, 1);
|
|
if (!b)
|
|
return log_oom();
|
|
|
|
b->path = path;
|
|
path = NULL;
|
|
b->bandwidth = (uint64_t) bytes;
|
|
b->read = read;
|
|
|
|
LIST_PREPEND(CGroupBlockIODeviceBandwidth, device_bandwidths, c->blockio_device_bandwidths, b);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#define FOLLOW_MAX 8
|
|
|
|
static int open_follow(char **filename, FILE **_f, Set *names, char **_final) {
|
|
unsigned c = 0;
|
|
int fd, r;
|
|
FILE *f;
|
|
char *id = NULL;
|
|
|
|
assert(filename);
|
|
assert(*filename);
|
|
assert(_f);
|
|
assert(names);
|
|
|
|
/* This will update the filename pointer if the loaded file is
|
|
* reached by a symlink. The old string will be freed. */
|
|
|
|
for (;;) {
|
|
char *target, *name;
|
|
|
|
if (c++ >= FOLLOW_MAX)
|
|
return -ELOOP;
|
|
|
|
path_kill_slashes(*filename);
|
|
|
|
/* Add the file name we are currently looking at to
|
|
* the names of this unit, but only if it is a valid
|
|
* unit name. */
|
|
name = path_get_file_name(*filename);
|
|
|
|
if (unit_name_is_valid(name, true)) {
|
|
|
|
id = set_get(names, name);
|
|
if (!id) {
|
|
id = strdup(name);
|
|
if (!id)
|
|
return -ENOMEM;
|
|
|
|
r = set_consume(names, id);
|
|
if (r < 0)
|
|
return r;
|
|
}
|
|
}
|
|
|
|
/* Try to open the file name, but don't if its a symlink */
|
|
fd = open(*filename, O_RDONLY|O_CLOEXEC|O_NOCTTY|O_NOFOLLOW);
|
|
if (fd >= 0)
|
|
break;
|
|
|
|
if (errno != ELOOP)
|
|
return -errno;
|
|
|
|
/* Hmm, so this is a symlink. Let's read the name, and follow it manually */
|
|
r = readlink_and_make_absolute(*filename, &target);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
free(*filename);
|
|
*filename = target;
|
|
}
|
|
|
|
f = fdopen(fd, "re");
|
|
if (!f) {
|
|
r = -errno;
|
|
close_nointr_nofail(fd);
|
|
return r;
|
|
}
|
|
|
|
*_f = f;
|
|
*_final = id;
|
|
return 0;
|
|
}
|
|
|
|
static int merge_by_names(Unit **u, Set *names, const char *id) {
|
|
char *k;
|
|
int r;
|
|
|
|
assert(u);
|
|
assert(*u);
|
|
assert(names);
|
|
|
|
/* Let's try to add in all symlink names we found */
|
|
while ((k = set_steal_first(names))) {
|
|
|
|
/* First try to merge in the other name into our
|
|
* unit */
|
|
r = unit_merge_by_name(*u, k);
|
|
if (r < 0) {
|
|
Unit *other;
|
|
|
|
/* Hmm, we couldn't merge the other unit into
|
|
* ours? Then let's try it the other way
|
|
* round */
|
|
|
|
other = manager_get_unit((*u)->manager, k);
|
|
free(k);
|
|
|
|
if (other) {
|
|
r = unit_merge(other, *u);
|
|
if (r >= 0) {
|
|
*u = other;
|
|
return merge_by_names(u, names, NULL);
|
|
}
|
|
}
|
|
|
|
return r;
|
|
}
|
|
|
|
if (id == k)
|
|
unit_choose_id(*u, id);
|
|
|
|
free(k);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int load_from_path(Unit *u, const char *path) {
|
|
int r;
|
|
Set *symlink_names;
|
|
FILE *f = NULL;
|
|
char *filename = NULL, *id = NULL;
|
|
Unit *merged;
|
|
struct stat st;
|
|
|
|
assert(u);
|
|
assert(path);
|
|
|
|
symlink_names = set_new(string_hash_func, string_compare_func);
|
|
if (!symlink_names)
|
|
return -ENOMEM;
|
|
|
|
if (path_is_absolute(path)) {
|
|
|
|
filename = strdup(path);
|
|
if (!filename) {
|
|
r = -ENOMEM;
|
|
goto finish;
|
|
}
|
|
|
|
r = open_follow(&filename, &f, symlink_names, &id);
|
|
if (r < 0) {
|
|
free(filename);
|
|
filename = NULL;
|
|
|
|
if (r != -ENOENT)
|
|
goto finish;
|
|
}
|
|
|
|
} else {
|
|
char **p;
|
|
|
|
STRV_FOREACH(p, u->manager->lookup_paths.unit_path) {
|
|
|
|
/* Instead of opening the path right away, we manually
|
|
* follow all symlinks and add their name to our unit
|
|
* name set while doing so */
|
|
filename = path_make_absolute(path, *p);
|
|
if (!filename) {
|
|
r = -ENOMEM;
|
|
goto finish;
|
|
}
|
|
|
|
if (u->manager->unit_path_cache &&
|
|
!set_get(u->manager->unit_path_cache, filename))
|
|
r = -ENOENT;
|
|
else
|
|
r = open_follow(&filename, &f, symlink_names, &id);
|
|
|
|
if (r < 0) {
|
|
free(filename);
|
|
filename = NULL;
|
|
|
|
if (r != -ENOENT)
|
|
goto finish;
|
|
|
|
/* Empty the symlink names for the next run */
|
|
set_clear_free(symlink_names);
|
|
continue;
|
|
}
|
|
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!filename) {
|
|
/* Hmm, no suitable file found? */
|
|
r = 0;
|
|
goto finish;
|
|
}
|
|
|
|
merged = u;
|
|
r = merge_by_names(&merged, symlink_names, id);
|
|
if (r < 0)
|
|
goto finish;
|
|
|
|
if (merged != u) {
|
|
u->load_state = UNIT_MERGED;
|
|
r = 0;
|
|
goto finish;
|
|
}
|
|
|
|
if (fstat(fileno(f), &st) < 0) {
|
|
r = -errno;
|
|
goto finish;
|
|
}
|
|
|
|
if (null_or_empty(&st))
|
|
u->load_state = UNIT_MASKED;
|
|
else {
|
|
u->load_state = UNIT_LOADED;
|
|
|
|
/* Now, parse the file contents */
|
|
r = config_parse(u->id, filename, f, UNIT_VTABLE(u)->sections,
|
|
config_item_perf_lookup,
|
|
(void*) load_fragment_gperf_lookup, false, true, u);
|
|
if (r < 0)
|
|
goto finish;
|
|
}
|
|
|
|
free(u->fragment_path);
|
|
u->fragment_path = filename;
|
|
filename = NULL;
|
|
|
|
u->fragment_mtime = timespec_load(&st.st_mtim);
|
|
|
|
if (u->source_path) {
|
|
if (stat(u->source_path, &st) >= 0)
|
|
u->source_mtime = timespec_load(&st.st_mtim);
|
|
else
|
|
u->source_mtime = 0;
|
|
}
|
|
|
|
r = 0;
|
|
|
|
finish:
|
|
set_free_free(symlink_names);
|
|
free(filename);
|
|
|
|
if (f)
|
|
fclose(f);
|
|
|
|
return r;
|
|
}
|
|
|
|
int unit_load_fragment(Unit *u) {
|
|
int r;
|
|
Iterator i;
|
|
const char *t;
|
|
|
|
assert(u);
|
|
assert(u->load_state == UNIT_STUB);
|
|
assert(u->id);
|
|
|
|
/* First, try to find the unit under its id. We always look
|
|
* for unit files in the default directories, to make it easy
|
|
* to override things by placing things in /etc/systemd/system */
|
|
r = load_from_path(u, u->id);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
/* Try to find an alias we can load this with */
|
|
if (u->load_state == UNIT_STUB)
|
|
SET_FOREACH(t, u->names, i) {
|
|
|
|
if (t == u->id)
|
|
continue;
|
|
|
|
r = load_from_path(u, t);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
if (u->load_state != UNIT_STUB)
|
|
break;
|
|
}
|
|
|
|
/* And now, try looking for it under the suggested (originally linked) path */
|
|
if (u->load_state == UNIT_STUB && u->fragment_path) {
|
|
|
|
r = load_from_path(u, u->fragment_path);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
if (u->load_state == UNIT_STUB) {
|
|
/* Hmm, this didn't work? Then let's get rid
|
|
* of the fragment path stored for us, so that
|
|
* we don't point to an invalid location. */
|
|
free(u->fragment_path);
|
|
u->fragment_path = NULL;
|
|
}
|
|
}
|
|
|
|
/* Look for a template */
|
|
if (u->load_state == UNIT_STUB && u->instance) {
|
|
char *k;
|
|
|
|
k = unit_name_template(u->id);
|
|
if (!k)
|
|
return -ENOMEM;
|
|
|
|
r = load_from_path(u, k);
|
|
free(k);
|
|
|
|
if (r < 0)
|
|
return r;
|
|
|
|
if (u->load_state == UNIT_STUB)
|
|
SET_FOREACH(t, u->names, i) {
|
|
|
|
if (t == u->id)
|
|
continue;
|
|
|
|
k = unit_name_template(t);
|
|
if (!k)
|
|
return -ENOMEM;
|
|
|
|
r = load_from_path(u, k);
|
|
free(k);
|
|
|
|
if (r < 0)
|
|
return r;
|
|
|
|
if (u->load_state != UNIT_STUB)
|
|
break;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
void unit_dump_config_items(FILE *f) {
|
|
static const struct {
|
|
const ConfigParserCallback callback;
|
|
const char *rvalue;
|
|
} table[] = {
|
|
{ config_parse_int, "INTEGER" },
|
|
{ config_parse_unsigned, "UNSIGNED" },
|
|
{ config_parse_bytes_size, "SIZE" },
|
|
{ config_parse_bool, "BOOLEAN" },
|
|
{ config_parse_string, "STRING" },
|
|
{ config_parse_path, "PATH" },
|
|
{ config_parse_unit_path_printf, "PATH" },
|
|
{ config_parse_strv, "STRING [...]" },
|
|
{ config_parse_exec_nice, "NICE" },
|
|
{ config_parse_exec_oom_score_adjust, "OOMSCOREADJUST" },
|
|
{ config_parse_exec_io_class, "IOCLASS" },
|
|
{ config_parse_exec_io_priority, "IOPRIORITY" },
|
|
{ config_parse_exec_cpu_sched_policy, "CPUSCHEDPOLICY" },
|
|
{ config_parse_exec_cpu_sched_prio, "CPUSCHEDPRIO" },
|
|
{ config_parse_exec_cpu_affinity, "CPUAFFINITY" },
|
|
{ config_parse_mode, "MODE" },
|
|
{ config_parse_unit_env_file, "FILE" },
|
|
{ config_parse_output, "OUTPUT" },
|
|
{ config_parse_input, "INPUT" },
|
|
{ config_parse_facility, "FACILITY" },
|
|
{ config_parse_level, "LEVEL" },
|
|
{ config_parse_exec_capabilities, "CAPABILITIES" },
|
|
{ config_parse_exec_secure_bits, "SECUREBITS" },
|
|
{ config_parse_bounding_set, "BOUNDINGSET" },
|
|
{ config_parse_limit, "LIMIT" },
|
|
{ config_parse_unit_deps, "UNIT [...]" },
|
|
{ config_parse_exec, "PATH [ARGUMENT [...]]" },
|
|
{ config_parse_service_type, "SERVICETYPE" },
|
|
{ config_parse_service_restart, "SERVICERESTART" },
|
|
#ifdef HAVE_SYSV_COMPAT
|
|
{ config_parse_sysv_priority, "SYSVPRIORITY" },
|
|
#else
|
|
{ config_parse_warn_compat, "NOTSUPPORTED" },
|
|
#endif
|
|
{ config_parse_kill_mode, "KILLMODE" },
|
|
{ config_parse_kill_signal, "SIGNAL" },
|
|
{ config_parse_socket_listen, "SOCKET [...]" },
|
|
{ config_parse_socket_bind, "SOCKETBIND" },
|
|
{ config_parse_socket_bindtodevice, "NETWORKINTERFACE" },
|
|
{ config_parse_sec, "SECONDS" },
|
|
{ config_parse_nsec, "NANOSECONDS" },
|
|
{ config_parse_path_strv, "PATH [...]" },
|
|
{ config_parse_unit_requires_mounts_for, "PATH [...]" },
|
|
{ config_parse_exec_mount_flags, "MOUNTFLAG [...]" },
|
|
{ config_parse_unit_string_printf, "STRING" },
|
|
{ config_parse_trigger_unit, "UNIT" },
|
|
{ config_parse_timer, "TIMER" },
|
|
{ config_parse_path_spec, "PATH" },
|
|
{ config_parse_notify_access, "ACCESS" },
|
|
{ config_parse_ip_tos, "TOS" },
|
|
{ config_parse_unit_condition_path, "CONDITION" },
|
|
{ config_parse_unit_condition_string, "CONDITION" },
|
|
{ config_parse_unit_condition_null, "CONDITION" },
|
|
{ config_parse_unit_slice, "SLICE" },
|
|
{ config_parse_documentation, "URL" },
|
|
{ config_parse_service_timeout, "SECONDS" },
|
|
{ config_parse_start_limit_action, "ACTION" },
|
|
{ config_parse_set_status, "STATUS" },
|
|
{ config_parse_service_sockets, "SOCKETS" },
|
|
{ config_parse_fsck_passno, "PASSNO" },
|
|
{ config_parse_environ, "ENVIRON" },
|
|
{ config_parse_syscall_filter, "SYSCALL" },
|
|
{ config_parse_cpu_shares, "SHARES" },
|
|
{ config_parse_memory_limit, "LIMIT" },
|
|
{ config_parse_device_allow, "DEVICE" },
|
|
{ config_parse_device_policy, "POLICY" },
|
|
{ config_parse_blockio_bandwidth, "BANDWIDTH" },
|
|
{ config_parse_blockio_weight, "WEIGHT" },
|
|
{ config_parse_blockio_device_weight, "DEVICEWEIGHT" },
|
|
{ config_parse_long, "LONG" },
|
|
{ config_parse_socket_service, "SERVICE" },
|
|
};
|
|
|
|
const char *prev = NULL;
|
|
const char *i;
|
|
|
|
assert(f);
|
|
|
|
NULSTR_FOREACH(i, load_fragment_gperf_nulstr) {
|
|
const char *rvalue = "OTHER", *lvalue;
|
|
unsigned j;
|
|
size_t prefix_len;
|
|
const char *dot;
|
|
const ConfigPerfItem *p;
|
|
|
|
assert_se(p = load_fragment_gperf_lookup(i, strlen(i)));
|
|
|
|
dot = strchr(i, '.');
|
|
lvalue = dot ? dot + 1 : i;
|
|
prefix_len = dot-i;
|
|
|
|
if (dot)
|
|
if (!prev || !strneq(prev, i, prefix_len+1)) {
|
|
if (prev)
|
|
fputc('\n', f);
|
|
|
|
fprintf(f, "[%.*s]\n", (int) prefix_len, i);
|
|
}
|
|
|
|
for (j = 0; j < ELEMENTSOF(table); j++)
|
|
if (p->parse == table[j].callback) {
|
|
rvalue = table[j].rvalue;
|
|
break;
|
|
}
|
|
|
|
fprintf(f, "%s=%s\n", lvalue, rvalue);
|
|
prev = i;
|
|
}
|
|
}
|