src/shared/path-lookup.c

	path-lookup.c revision 7ad94c716d6403233d04c4d37cb14df958c9b65d
a660c63c551b88136ac6176855b5907cc533e848Kay Sievers/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
a660c63c551b88136ac6176855b5907cc533e848Kay Sievers
a660c63c551b88136ac6176855b5907cc533e848Kay Sievers/***
a660c63c551b88136ac6176855b5907cc533e848Kay Sievers  This file is part of systemd.
a660c63c551b88136ac6176855b5907cc533e848Kay Sievers
a660c63c551b88136ac6176855b5907cc533e848Kay Sievers  Copyright 2010 Lennart Poettering
a660c63c551b88136ac6176855b5907cc533e848Kay Sievers
a660c63c551b88136ac6176855b5907cc533e848Kay Sievers  systemd is free software; you can redistribute it and/or modify it
a660c63c551b88136ac6176855b5907cc533e848Kay Sievers  under the terms of the GNU Lesser General Public License as published by
a660c63c551b88136ac6176855b5907cc533e848Kay Sievers  the Free Software Foundation; either version 2.1 of the License, or
a660c63c551b88136ac6176855b5907cc533e848Kay Sievers  (at your option) any later version.
a660c63c551b88136ac6176855b5907cc533e848Kay Sievers
a660c63c551b88136ac6176855b5907cc533e848Kay Sievers  systemd is distributed in the hope that it will be useful, but
a660c63c551b88136ac6176855b5907cc533e848Kay Sievers  WITHOUT ANY WARRANTY; without even the implied warranty of
a660c63c551b88136ac6176855b5907cc533e848Kay Sievers  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
a660c63c551b88136ac6176855b5907cc533e848Kay Sievers  Lesser General Public License for more details.
a660c63c551b88136ac6176855b5907cc533e848Kay Sievers
a660c63c551b88136ac6176855b5907cc533e848Kay Sievers  You should have received a copy of the GNU Lesser General Public License
a660c63c551b88136ac6176855b5907cc533e848Kay Sievers  along with systemd; If not, see <http://www.gnu.org/licenses/>.
d23965a64eb5c2c97b839dc2e3e79fc1613994f1Kay Sievers***/
ad37f393fa97f4274cc3bf97a0d8c388a429037eKay Sievers
472780d8b1ec3f3f4ff78eb21a013136e5aa1cfeKay Sievers#include <assert.h>
472780d8b1ec3f3f4ff78eb21a013136e5aa1cfeKay Sievers#include <stdlib.h>
472780d8b1ec3f3f4ff78eb21a013136e5aa1cfeKay Sievers#include <stdio.h>
472780d8b1ec3f3f4ff78eb21a013136e5aa1cfeKay Sievers#include <string.h>
472780d8b1ec3f3f4ff78eb21a013136e5aa1cfeKay Sievers#include <unistd.h>
ad37f393fa97f4274cc3bf97a0d8c388a429037eKay Sievers#include <errno.h>
0035597a30d120f70df2dd7da3d6128fb8ba6051Kay Sievers
0035597a30d120f70df2dd7da3d6128fb8ba6051Kay Sievers#include "util.h"
0035597a30d120f70df2dd7da3d6128fb8ba6051Kay Sievers#include "mkdir.h"
d23965a64eb5c2c97b839dc2e3e79fc1613994f1Kay Sievers#include "strv.h"
ad37f393fa97f4274cc3bf97a0d8c388a429037eKay Sievers#include "path-util.h"
1328f66ad16b5afeb5684858c27e121a46c1959eKay Sievers#include "path-lookup.h"
1328f66ad16b5afeb5684858c27e121a46c1959eKay Sievers
1328f66ad16b5afeb5684858c27e121a46c1959eKay Sieversstatic const char* const systemd_running_as_table[_SYSTEMD_RUNNING_AS_MAX] = {
1328f66ad16b5afeb5684858c27e121a46c1959eKay Sievers        [SYSTEMD_SYSTEM] = "system",
1328f66ad16b5afeb5684858c27e121a46c1959eKay Sievers        [SYSTEMD_USER] = "user"
1328f66ad16b5afeb5684858c27e121a46c1959eKay Sievers};
472780d8b1ec3f3f4ff78eb21a013136e5aa1cfeKay Sievers
ad37f393fa97f4274cc3bf97a0d8c388a429037eKay SieversDEFINE_STRING_TABLE_LOOKUP(systemd_running_as, SystemdRunningAs);
472780d8b1ec3f3f4ff78eb21a013136e5aa1cfeKay Sievers
d23965a64eb5c2c97b839dc2e3e79fc1613994f1Kay Sieversint user_config_home(char **config_home) {
0d6ce9236f61cb991d7e8f2359d818e41ead0cf5Kay Sievers        const char *e;
0d6ce9236f61cb991d7e8f2359d818e41ead0cf5Kay Sievers
0d6ce9236f61cb991d7e8f2359d818e41ead0cf5Kay Sievers        e = getenv("XDG_CONFIG_HOME");
0d6ce9236f61cb991d7e8f2359d818e41ead0cf5Kay Sievers        if (e) {
ad37f393fa97f4274cc3bf97a0d8c388a429037eKay Sievers                if (asprintf(config_home, "%s/systemd/user", e) < 0)
decd634e801bee2c554edb35383cc9d43417a850Kay Sievers                        return -ENOMEM;
0035597a30d120f70df2dd7da3d6128fb8ba6051Kay Sievers
f610d6de38119b372b377ec41b2a6089872d3294Kay Sievers                return 1;
f610d6de38119b372b377ec41b2a6089872d3294Kay Sievers        } else {
ad37f393fa97f4274cc3bf97a0d8c388a429037eKay Sievers                const char *home;
f610d6de38119b372b377ec41b2a6089872d3294Kay Sievers
f610d6de38119b372b377ec41b2a6089872d3294Kay Sievers                home = getenv("HOME");
f610d6de38119b372b377ec41b2a6089872d3294Kay Sievers                if (home) {
de892aea1c486b59e04884268b612081d1660514Kay Sievers                        if (asprintf(config_home, "%s/.config/systemd/user", home) < 0)
f610d6de38119b372b377ec41b2a6089872d3294Kay Sievers                                return -ENOMEM;
decd634e801bee2c554edb35383cc9d43417a850Kay Sievers
decd634e801bee2c554edb35383cc9d43417a850Kay Sievers                        return 1;
decd634e801bee2c554edb35383cc9d43417a850Kay Sievers                }
decd634e801bee2c554edb35383cc9d43417a850Kay Sievers        }
decd634e801bee2c554edb35383cc9d43417a850Kay Sievers
decd634e801bee2c554edb35383cc9d43417a850Kay Sievers        return 0;
decd634e801bee2c554edb35383cc9d43417a850Kay Sievers}
decd634e801bee2c554edb35383cc9d43417a850Kay Sievers
f610d6de38119b372b377ec41b2a6089872d3294Kay Sieversstatic char** user_dirs(
f610d6de38119b372b377ec41b2a6089872d3294Kay Sievers                const char *generator,
f610d6de38119b372b377ec41b2a6089872d3294Kay Sievers                const char *generator_early,
f610d6de38119b372b377ec41b2a6089872d3294Kay Sievers                const char *generator_late) {
f610d6de38119b372b377ec41b2a6089872d3294Kay Sievers
f610d6de38119b372b377ec41b2a6089872d3294Kay Sievers        const char * const config_unit_paths[] = {
f610d6de38119b372b377ec41b2a6089872d3294Kay Sievers                USER_CONFIG_UNIT_PATH,
f610d6de38119b372b377ec41b2a6089872d3294Kay Sievers                "/etc/systemd/user",
f610d6de38119b372b377ec41b2a6089872d3294Kay Sievers                "/run/systemd/user",
f610d6de38119b372b377ec41b2a6089872d3294Kay Sievers                NULL
f610d6de38119b372b377ec41b2a6089872d3294Kay Sievers        };
f610d6de38119b372b377ec41b2a6089872d3294Kay Sievers
f610d6de38119b372b377ec41b2a6089872d3294Kay Sievers        const char * const data_unit_paths[] = {
f610d6de38119b372b377ec41b2a6089872d3294Kay Sievers                "/usr/local/lib/systemd/user",
d23965a64eb5c2c97b839dc2e3e79fc1613994f1Kay Sievers                "/usr/local/share/systemd/user",
d23965a64eb5c2c97b839dc2e3e79fc1613994f1Kay Sievers                USER_DATA_UNIT_PATH,
a660c63c551b88136ac6176855b5907cc533e848Kay Sievers                "/usr/lib/systemd/user",
a660c63c551b88136ac6176855b5907cc533e848Kay Sievers                "/usr/share/systemd/user",
a660c63c551b88136ac6176855b5907cc533e848Kay Sievers                NULL
a660c63c551b88136ac6176855b5907cc533e848Kay Sievers        };
a660c63c551b88136ac6176855b5907cc533e848Kay Sievers
a660c63c551b88136ac6176855b5907cc533e848Kay Sievers        const char *home, *e;
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers        char *config_home = NULL, *data_home = NULL;
de892aea1c486b59e04884268b612081d1660514Kay Sievers        char **config_dirs = NULL, **data_dirs = NULL;
a660c63c551b88136ac6176855b5907cc533e848Kay Sievers        char **r = NULL, **t;
a660c63c551b88136ac6176855b5907cc533e848Kay Sievers
a660c63c551b88136ac6176855b5907cc533e848Kay Sievers        /* Implement the mechanisms defined in
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers         *
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers         * http://standards.freedesktop.org/basedir-spec/basedir-spec-0.6.html
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers         *
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers         * We look in both the config and the data dirs because we
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers         * want to encourage that distributors ship their unit files
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers         * as data, and allow overriding as configuration.
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers         */
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers        if (user_config_home(&config_home) < 0)
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                goto fail;
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers        home = getenv("HOME");
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers        e = getenv("XDG_CONFIG_DIRS");
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers        if (e) {
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                config_dirs = strv_split(e, ":");
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                if (!config_dirs)
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                        goto fail;
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers        }
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers        /* We don't treat /etc/xdg/systemd here as the spec
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers         * suggests because we assume that that is a link to
0035597a30d120f70df2dd7da3d6128fb8ba6051Kay Sievers         * /etc/systemd/ anyway. */
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers
d23965a64eb5c2c97b839dc2e3e79fc1613994f1Kay Sievers        e = getenv("XDG_DATA_HOME");
0035597a30d120f70df2dd7da3d6128fb8ba6051Kay Sievers        if (e) {
a660c63c551b88136ac6176855b5907cc533e848Kay Sievers                if (asprintf(&data_home, "%s/systemd/user", e) < 0)
0035597a30d120f70df2dd7da3d6128fb8ba6051Kay Sievers                        goto fail;
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers
01d183ddae6fb3445c4519cf1d90c6575f17292eKay Sievers        } else if (home) {
01d183ddae6fb3445c4519cf1d90c6575f17292eKay Sievers                if (asprintf(&data_home, "%s/.local/share/systemd/user", home) < 0)
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                        goto fail;
0035597a30d120f70df2dd7da3d6128fb8ba6051Kay Sievers
0035597a30d120f70df2dd7da3d6128fb8ba6051Kay Sievers                /* There is really no need for two unit dirs in $HOME,
0035597a30d120f70df2dd7da3d6128fb8ba6051Kay Sievers                 * except to be fully compliant with the XDG spec. We
0035597a30d120f70df2dd7da3d6128fb8ba6051Kay Sievers                 * now try to link the two dirs, so that we can
0035597a30d120f70df2dd7da3d6128fb8ba6051Kay Sievers                 * minimize disk seeks a little. Further down we'll
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                 * then filter out this link, if it is actually is
d23965a64eb5c2c97b839dc2e3e79fc1613994f1Kay Sievers                 * one. */
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers
0035597a30d120f70df2dd7da3d6128fb8ba6051Kay Sievers                mkdir_parents_label(data_home, 0777);
0035597a30d120f70df2dd7da3d6128fb8ba6051Kay Sievers                (void) symlink("../../../.config/systemd/user", data_home);
d23965a64eb5c2c97b839dc2e3e79fc1613994f1Kay Sievers        }
137661d87525a3c339afd2804e577532d58d3fbcKay Sievers
1328f66ad16b5afeb5684858c27e121a46c1959eKay Sievers        e = getenv("XDG_DATA_DIRS");
de892aea1c486b59e04884268b612081d1660514Kay Sievers        if (e)
de892aea1c486b59e04884268b612081d1660514Kay Sievers                data_dirs = strv_split(e, ":");
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers        else
1328f66ad16b5afeb5684858c27e121a46c1959eKay Sievers                data_dirs = strv_new("/usr/local/share",
de892aea1c486b59e04884268b612081d1660514Kay Sievers                                     "/usr/share",
de892aea1c486b59e04884268b612081d1660514Kay Sievers                                     NULL);
de892aea1c486b59e04884268b612081d1660514Kay Sievers        if (!data_dirs)
de892aea1c486b59e04884268b612081d1660514Kay Sievers                goto fail;
de892aea1c486b59e04884268b612081d1660514Kay Sievers
de892aea1c486b59e04884268b612081d1660514Kay Sievers        /* Now merge everything we found. */
de892aea1c486b59e04884268b612081d1660514Kay Sievers        if (generator_early) {
de892aea1c486b59e04884268b612081d1660514Kay Sievers                t = strv_append(r, generator_early);
de892aea1c486b59e04884268b612081d1660514Kay Sievers                if (!t)
1328f66ad16b5afeb5684858c27e121a46c1959eKay Sievers                        goto fail;
1328f66ad16b5afeb5684858c27e121a46c1959eKay Sievers                strv_free(r);
de892aea1c486b59e04884268b612081d1660514Kay Sievers                r = t;
de892aea1c486b59e04884268b612081d1660514Kay Sievers        }
1328f66ad16b5afeb5684858c27e121a46c1959eKay Sievers
de892aea1c486b59e04884268b612081d1660514Kay Sievers        if (config_home) {
de892aea1c486b59e04884268b612081d1660514Kay Sievers                t = strv_append(r, config_home);
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                if (!t)
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                        goto fail;
0035597a30d120f70df2dd7da3d6128fb8ba6051Kay Sievers                strv_free(r);
0035597a30d120f70df2dd7da3d6128fb8ba6051Kay Sievers                r = t;
0035597a30d120f70df2dd7da3d6128fb8ba6051Kay Sievers        }
1328f66ad16b5afeb5684858c27e121a46c1959eKay Sievers
1328f66ad16b5afeb5684858c27e121a46c1959eKay Sievers        if (!strv_isempty(config_dirs)) {
1328f66ad16b5afeb5684858c27e121a46c1959eKay Sievers                t = strv_merge_concat(r, config_dirs, "/systemd/user");
1328f66ad16b5afeb5684858c27e121a46c1959eKay Sievers                if (!t)
0035597a30d120f70df2dd7da3d6128fb8ba6051Kay Sievers                        goto finish;
0035597a30d120f70df2dd7da3d6128fb8ba6051Kay Sievers                strv_free(r);
0035597a30d120f70df2dd7da3d6128fb8ba6051Kay Sievers                r = t;
0035597a30d120f70df2dd7da3d6128fb8ba6051Kay Sievers        }
0035597a30d120f70df2dd7da3d6128fb8ba6051Kay Sievers
0035597a30d120f70df2dd7da3d6128fb8ba6051Kay Sievers        t = strv_merge(r, (char**) config_unit_paths);
0035597a30d120f70df2dd7da3d6128fb8ba6051Kay Sievers        if (!t)
0035597a30d120f70df2dd7da3d6128fb8ba6051Kay Sievers                goto fail;
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers        strv_free(r);
0035597a30d120f70df2dd7da3d6128fb8ba6051Kay Sievers        r = t;
1328f66ad16b5afeb5684858c27e121a46c1959eKay Sievers
1328f66ad16b5afeb5684858c27e121a46c1959eKay Sievers        if (generator) {
1328f66ad16b5afeb5684858c27e121a46c1959eKay Sievers                t = strv_append(r, generator);
1328f66ad16b5afeb5684858c27e121a46c1959eKay Sievers                if (!t)
1328f66ad16b5afeb5684858c27e121a46c1959eKay Sievers                        goto fail;
1328f66ad16b5afeb5684858c27e121a46c1959eKay Sievers                strv_free(r);
1328f66ad16b5afeb5684858c27e121a46c1959eKay Sievers                r = t;
1328f66ad16b5afeb5684858c27e121a46c1959eKay Sievers        }
1328f66ad16b5afeb5684858c27e121a46c1959eKay Sievers
1328f66ad16b5afeb5684858c27e121a46c1959eKay Sievers        if (data_home) {
1328f66ad16b5afeb5684858c27e121a46c1959eKay Sievers                t = strv_append(r, data_home);
1328f66ad16b5afeb5684858c27e121a46c1959eKay Sievers                if (!t)
1328f66ad16b5afeb5684858c27e121a46c1959eKay Sievers                        goto fail;
1328f66ad16b5afeb5684858c27e121a46c1959eKay Sievers                strv_free(r);
1328f66ad16b5afeb5684858c27e121a46c1959eKay Sievers                r = t;
d23965a64eb5c2c97b839dc2e3e79fc1613994f1Kay Sievers        }
0035597a30d120f70df2dd7da3d6128fb8ba6051Kay Sievers
0035597a30d120f70df2dd7da3d6128fb8ba6051Kay Sievers        if (!strv_isempty(data_dirs)) {
0035597a30d120f70df2dd7da3d6128fb8ba6051Kay Sievers                t = strv_merge_concat(r, data_dirs, "/systemd/user");
0035597a30d120f70df2dd7da3d6128fb8ba6051Kay Sievers                if (!t)
0035597a30d120f70df2dd7da3d6128fb8ba6051Kay Sievers                        goto fail;
0035597a30d120f70df2dd7da3d6128fb8ba6051Kay Sievers                strv_free(r);
0035597a30d120f70df2dd7da3d6128fb8ba6051Kay Sievers                r = t;
0035597a30d120f70df2dd7da3d6128fb8ba6051Kay Sievers        }
0035597a30d120f70df2dd7da3d6128fb8ba6051Kay Sievers
0035597a30d120f70df2dd7da3d6128fb8ba6051Kay Sievers        t = strv_merge(r, (char**) data_unit_paths);
0035597a30d120f70df2dd7da3d6128fb8ba6051Kay Sievers        if (!t)
d23965a64eb5c2c97b839dc2e3e79fc1613994f1Kay Sievers                goto fail;
d23965a64eb5c2c97b839dc2e3e79fc1613994f1Kay Sievers        strv_free(r);
0035597a30d120f70df2dd7da3d6128fb8ba6051Kay Sievers        r = t;
0035597a30d120f70df2dd7da3d6128fb8ba6051Kay Sievers
0035597a30d120f70df2dd7da3d6128fb8ba6051Kay Sievers        if (generator_late) {
0035597a30d120f70df2dd7da3d6128fb8ba6051Kay Sievers                t = strv_append(r, generator_late);
0035597a30d120f70df2dd7da3d6128fb8ba6051Kay Sievers                if (!t)
0035597a30d120f70df2dd7da3d6128fb8ba6051Kay Sievers                        goto fail;
0035597a30d120f70df2dd7da3d6128fb8ba6051Kay Sievers                strv_free(r);
0035597a30d120f70df2dd7da3d6128fb8ba6051Kay Sievers                r = t;
0035597a30d120f70df2dd7da3d6128fb8ba6051Kay Sievers        }
0035597a30d120f70df2dd7da3d6128fb8ba6051Kay Sievers
0035597a30d120f70df2dd7da3d6128fb8ba6051Kay Sievers        if (!path_strv_make_absolute_cwd(r))
0035597a30d120f70df2dd7da3d6128fb8ba6051Kay Sievers                goto fail;
0035597a30d120f70df2dd7da3d6128fb8ba6051Kay Sievers
0035597a30d120f70df2dd7da3d6128fb8ba6051Kay Sieversfinish:
0035597a30d120f70df2dd7da3d6128fb8ba6051Kay Sievers        free(config_home);
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers        strv_free(config_dirs);
0035597a30d120f70df2dd7da3d6128fb8ba6051Kay Sievers        free(data_home);
0035597a30d120f70df2dd7da3d6128fb8ba6051Kay Sievers        strv_free(data_dirs);
0035597a30d120f70df2dd7da3d6128fb8ba6051Kay Sievers
0035597a30d120f70df2dd7da3d6128fb8ba6051Kay Sievers        return r;
0035597a30d120f70df2dd7da3d6128fb8ba6051Kay Sievers
0035597a30d120f70df2dd7da3d6128fb8ba6051Kay Sieversfail:
0035597a30d120f70df2dd7da3d6128fb8ba6051Kay Sievers        strv_free(r);
0035597a30d120f70df2dd7da3d6128fb8ba6051Kay Sievers        r = NULL;
d23965a64eb5c2c97b839dc2e3e79fc1613994f1Kay Sievers        goto finish;
0035597a30d120f70df2dd7da3d6128fb8ba6051Kay Sievers}
1328f66ad16b5afeb5684858c27e121a46c1959eKay Sievers
1328f66ad16b5afeb5684858c27e121a46c1959eKay Sieversint lookup_paths_init(
1328f66ad16b5afeb5684858c27e121a46c1959eKay Sievers                LookupPaths *p,
1328f66ad16b5afeb5684858c27e121a46c1959eKay Sievers                SystemdRunningAs running_as,
1328f66ad16b5afeb5684858c27e121a46c1959eKay Sievers                bool personal,
1328f66ad16b5afeb5684858c27e121a46c1959eKay Sievers                const char *generator,
1328f66ad16b5afeb5684858c27e121a46c1959eKay Sievers                const char *generator_early,
1328f66ad16b5afeb5684858c27e121a46c1959eKay Sievers                const char *generator_late) {
d23965a64eb5c2c97b839dc2e3e79fc1613994f1Kay Sievers
0035597a30d120f70df2dd7da3d6128fb8ba6051Kay Sievers        const char *e;
0035597a30d120f70df2dd7da3d6128fb8ba6051Kay Sievers
0035597a30d120f70df2dd7da3d6128fb8ba6051Kay Sievers        assert(p);
0035597a30d120f70df2dd7da3d6128fb8ba6051Kay Sievers
0035597a30d120f70df2dd7da3d6128fb8ba6051Kay Sievers        /* First priority is whatever has been passed to us via env
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers         * vars */
5b8180d3f6598a1b2f296645690de41d726fd5abKay Sievers        e = getenv("SYSTEMD_UNIT_PATH");
0035597a30d120f70df2dd7da3d6128fb8ba6051Kay Sievers        if (e) {
5b8180d3f6598a1b2f296645690de41d726fd5abKay Sievers                p->unit_path = path_split_and_make_absolute(e);
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                if (!p->unit_path)
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                        return -ENOMEM;
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers        } else
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                p->unit_path = NULL;
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers        if (strv_isempty(p->unit_path)) {
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                /* Nothing is set, so let's figure something out. */
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                strv_free(p->unit_path);
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                /* For the user units we include share/ in the search
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                 * path in order to comply with the XDG basedir
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                 * spec. For the system stuff we avoid such
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                 * nonsense. OTOH we include /lib in the search path
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                 * for the system stuff but avoid it for user
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                 * stuff. */
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                if (running_as == SYSTEMD_USER) {
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                        if (personal)
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                                p->unit_path = user_dirs(generator, generator_early, generator_late);
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                        else
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                                p->unit_path = strv_new(
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                                                /* If you modify this you also want to modify
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                                                 * systemduserunitpath= in systemd.pc.in, and
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                                                 * the arrays in user_dirs() above! */
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                                                STRV_IFNOTNULL(generator_early),
0035597a30d120f70df2dd7da3d6128fb8ba6051Kay Sievers                                                USER_CONFIG_UNIT_PATH,
0035597a30d120f70df2dd7da3d6128fb8ba6051Kay Sievers                                                "/etc/systemd/user",
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                                                "/run/systemd/user",
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                                                STRV_IFNOTNULL(generator),
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                                                "/usr/local/lib/systemd/user",
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                                                "/usr/local/share/systemd/user",
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                                                USER_DATA_UNIT_PATH,
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                                                "/usr/lib/systemd/user",
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                                                "/usr/share/systemd/user",
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                                                STRV_IFNOTNULL(generator_late),
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                                                NULL);
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                        if (!p->unit_path)
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                                return -ENOMEM;
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                } else {
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                        p->unit_path = strv_new(
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                                        /* If you modify this you also want to modify
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                                         * systemdsystemunitpath= in systemd.pc.in! */
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                                        STRV_IFNOTNULL(generator_early),
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                                        SYSTEM_CONFIG_UNIT_PATH,
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                                        "/etc/systemd/system",
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                                        "/run/systemd/system",
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                                        STRV_IFNOTNULL(generator),
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                                        "/usr/local/lib/systemd/system",
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                                        SYSTEM_DATA_UNIT_PATH,
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                                        "/usr/lib/systemd/system",
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers#ifdef HAVE_SPLIT_USR
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                                        "/lib/systemd/system",
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers#endif
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                                        STRV_IFNOTNULL(generator_late),
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                                        NULL);
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                        if (!p->unit_path)
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                                return -ENOMEM;
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                }
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers        }
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers        if (!path_strv_canonicalize(p->unit_path))
d23965a64eb5c2c97b839dc2e3e79fc1613994f1Kay Sievers                return -ENOMEM;
d23965a64eb5c2c97b839dc2e3e79fc1613994f1Kay Sievers
d23965a64eb5c2c97b839dc2e3e79fc1613994f1Kay Sievers        strv_uniq(p->unit_path);
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers
d23965a64eb5c2c97b839dc2e3e79fc1613994f1Kay Sievers        if (!strv_isempty(p->unit_path)) {
d23965a64eb5c2c97b839dc2e3e79fc1613994f1Kay Sievers                char _cleanup_free_ *t = strv_join(p->unit_path, "\n\t");
d23965a64eb5c2c97b839dc2e3e79fc1613994f1Kay Sievers                if (!t)
d23965a64eb5c2c97b839dc2e3e79fc1613994f1Kay Sievers                        return -ENOMEM;
d23965a64eb5c2c97b839dc2e3e79fc1613994f1Kay Sievers                log_info("Looking for unit files in (higher priority first):\n\t%s", t);
d23965a64eb5c2c97b839dc2e3e79fc1613994f1Kay Sievers        } else {
d23965a64eb5c2c97b839dc2e3e79fc1613994f1Kay Sievers                log_info("Ignoring unit files.");
d23965a64eb5c2c97b839dc2e3e79fc1613994f1Kay Sievers                strv_free(p->unit_path);
d23965a64eb5c2c97b839dc2e3e79fc1613994f1Kay Sievers                p->unit_path = NULL;
d23965a64eb5c2c97b839dc2e3e79fc1613994f1Kay Sievers        }
d23965a64eb5c2c97b839dc2e3e79fc1613994f1Kay Sievers
d23965a64eb5c2c97b839dc2e3e79fc1613994f1Kay Sievers        if (running_as == SYSTEMD_SYSTEM) {
d23965a64eb5c2c97b839dc2e3e79fc1613994f1Kay Sievers#ifdef HAVE_SYSV_COMPAT
d23965a64eb5c2c97b839dc2e3e79fc1613994f1Kay Sievers                /* /etc/init.d/ compatibility does not matter to users */
d23965a64eb5c2c97b839dc2e3e79fc1613994f1Kay Sievers
d23965a64eb5c2c97b839dc2e3e79fc1613994f1Kay Sievers                e = getenv("SYSTEMD_SYSVINIT_PATH");
d23965a64eb5c2c97b839dc2e3e79fc1613994f1Kay Sievers                if (e) {
d23965a64eb5c2c97b839dc2e3e79fc1613994f1Kay Sievers                        p->sysvinit_path = path_split_and_make_absolute(e);
d23965a64eb5c2c97b839dc2e3e79fc1613994f1Kay Sievers                        if (!p->sysvinit_path)
d23965a64eb5c2c97b839dc2e3e79fc1613994f1Kay Sievers                                return -ENOMEM;
a660c63c551b88136ac6176855b5907cc533e848Kay Sievers                } else
a660c63c551b88136ac6176855b5907cc533e848Kay Sievers                        p->sysvinit_path = NULL;
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                if (strv_isempty(p->sysvinit_path)) {
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                        strv_free(p->sysvinit_path);
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                        p->sysvinit_path = strv_new(
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                                        SYSTEM_SYSVINIT_PATH,     /* /etc/init.d/ */
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                                        NULL);
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                        if (!p->sysvinit_path)
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                                return -ENOMEM;
d23965a64eb5c2c97b839dc2e3e79fc1613994f1Kay Sievers                }
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                e = getenv("SYSTEMD_SYSVRCND_PATH");
971e7fb62548f2c9c4e32684bb13409e6579dc6aKay Sievers                if (e) {
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                        p->sysvrcnd_path = path_split_and_make_absolute(e);
971e7fb62548f2c9c4e32684bb13409e6579dc6aKay Sievers                        if (!p->sysvrcnd_path)
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                                return -ENOMEM;
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                } else
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                        p->sysvrcnd_path = NULL;
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                if (strv_isempty(p->sysvrcnd_path)) {
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                        strv_free(p->sysvrcnd_path);
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                        p->sysvrcnd_path = strv_new(
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                                        SYSTEM_SYSVRCND_PATH,     /* /etc/rcN.d/ */
a660c63c551b88136ac6176855b5907cc533e848Kay Sievers                                        NULL);
a660c63c551b88136ac6176855b5907cc533e848Kay Sievers                        if (!p->sysvrcnd_path)
a660c63c551b88136ac6176855b5907cc533e848Kay Sievers                                return -ENOMEM;
d23965a64eb5c2c97b839dc2e3e79fc1613994f1Kay Sievers                }
72bc96f07868d532596477604b6fb41633ebd124Kay Sievers
d23965a64eb5c2c97b839dc2e3e79fc1613994f1Kay Sievers                if (!path_strv_canonicalize(p->sysvinit_path))
d23965a64eb5c2c97b839dc2e3e79fc1613994f1Kay Sievers                        return -ENOMEM;
d23965a64eb5c2c97b839dc2e3e79fc1613994f1Kay Sievers
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                if (!path_strv_canonicalize(p->sysvrcnd_path))
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                        return -ENOMEM;
d23965a64eb5c2c97b839dc2e3e79fc1613994f1Kay Sievers
d23965a64eb5c2c97b839dc2e3e79fc1613994f1Kay Sievers                strv_uniq(p->sysvinit_path);
d23965a64eb5c2c97b839dc2e3e79fc1613994f1Kay Sievers                strv_uniq(p->sysvrcnd_path);
d23965a64eb5c2c97b839dc2e3e79fc1613994f1Kay Sievers
d23965a64eb5c2c97b839dc2e3e79fc1613994f1Kay Sievers                if (!strv_isempty(p->sysvinit_path)) {
d23965a64eb5c2c97b839dc2e3e79fc1613994f1Kay Sievers                        char _cleanup_free_ *t = strv_join(p->sysvinit_path, "\n\t");
d23965a64eb5c2c97b839dc2e3e79fc1613994f1Kay Sievers                        if (!t)
d23965a64eb5c2c97b839dc2e3e79fc1613994f1Kay Sievers                                return -ENOMEM;
d23965a64eb5c2c97b839dc2e3e79fc1613994f1Kay Sievers                        log_info("Looking for SysV init scripts in:\n\t%s", t);
72bc96f07868d532596477604b6fb41633ebd124Kay Sievers                } else {
72bc96f07868d532596477604b6fb41633ebd124Kay Sievers                        log_info("Ignoring SysV init scripts.");
72bc96f07868d532596477604b6fb41633ebd124Kay Sievers                        strv_free(p->sysvinit_path);
72bc96f07868d532596477604b6fb41633ebd124Kay Sievers                        p->sysvinit_path = NULL;
72bc96f07868d532596477604b6fb41633ebd124Kay Sievers                }
72bc96f07868d532596477604b6fb41633ebd124Kay Sievers
72bc96f07868d532596477604b6fb41633ebd124Kay Sievers                if (!strv_isempty(p->sysvrcnd_path)) {
72bc96f07868d532596477604b6fb41633ebd124Kay Sievers                        char _cleanup_free_ *t =
72bc96f07868d532596477604b6fb41633ebd124Kay Sievers                                strv_join(p->sysvrcnd_path, "\n\t");
72bc96f07868d532596477604b6fb41633ebd124Kay Sievers                        if (!t)
d23965a64eb5c2c97b839dc2e3e79fc1613994f1Kay Sievers                                return -ENOMEM;
d23965a64eb5c2c97b839dc2e3e79fc1613994f1Kay Sievers
d23965a64eb5c2c97b839dc2e3e79fc1613994f1Kay Sievers                        log_debug("Looking for SysV rcN.d links in:\n\t%s", t);
d23965a64eb5c2c97b839dc2e3e79fc1613994f1Kay Sievers                } else {
d23965a64eb5c2c97b839dc2e3e79fc1613994f1Kay Sievers                        log_debug("Ignoring SysV rcN.d links.");
d23965a64eb5c2c97b839dc2e3e79fc1613994f1Kay Sievers                        strv_free(p->sysvrcnd_path);
d23965a64eb5c2c97b839dc2e3e79fc1613994f1Kay Sievers                        p->sysvrcnd_path = NULL;
d23965a64eb5c2c97b839dc2e3e79fc1613994f1Kay Sievers                }
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers#else
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers                log_info("SysV init scripts and rcN.d links support disabled");
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers#endif
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers        }
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers        return 0;
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers}
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers
0260944060426d54d9ecb40930baad985cbd02a1Kay Sieversvoid lookup_paths_free(LookupPaths *p) {
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers        assert(p);
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers        strv_free(p->unit_path);
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers        p->unit_path = NULL;
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers#ifdef HAVE_SYSV_COMPAT
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers        strv_free(p->sysvinit_path);
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers        strv_free(p->sysvrcnd_path);
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers        p->sysvinit_path = p->sysvrcnd_path = NULL;
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers#endif
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers}
0260944060426d54d9ecb40930baad985cbd02a1Kay Sievers