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systemd/src/test/test-install-root.c

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install: follow unit file symlinks in /usr, but not /etc when looking for [Install] data Some distributions use alias unit files via symlinks in /usr to cover for legacy service names. With this change we'll allow "systemctl enable" on such aliases. Previously, our rule was that symlinks are user configuration that "systemctl enable" + "systemctl disable" creates and removes, while unit files is where the instructions to do so are store. As a result of the rule we'd never read install information through symlinks, since that would mix enablement state with installation instructions. Now, the new rule is that only symlinks inside of /etc are configuration. Unit files, and symlinks in /usr are now valid for installation instructions. This patch is quite a rework of the whole install logic, and makes the following addional changes: - Adds a complete test "test-instal-root" that tests the install logic pretty comprehensively. - Never uses canonicalize_file_name(), because that's incompatible with operation relative to a specific root directory. - unit_file_get_state() is reworked to return a proper error, and returns the state in a call-by-ref parameter. This cleans up confusion between the enum type and errno-like errors. - The new logic puts a limit on how long to follow unit file symlinks: it will do so only for 64 steps at max. - The InstallContext object's fields are renamed to will_process and has_processed (will_install and has_installed) since they are also used for deinstallation and all kinds of other operations. - The root directory is always verified before use. - install.c is reordered to place the exported functions together. - Stricter rules are followed when traversing symlinks: the unit suffix must say identical, and it's not allowed to link between regular units and templated units. - Various modernizations - The "invalid" unit file state has been renamed to "bad", in order to avoid confusion between UNIT_FILE_INVALID and _UNIT_FILE_STATE_INVALID. Given that the state should normally not be seen and is not documented this should not be a problematic change. The new name is now documented however. Fixes #1375, #1718, #1706
2015-10-08 23:31:56 +03:00
/***
This file is part of systemd.
Copyright 2011 Lennart Poettering
systemd is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
systemd is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
#include "alloc-util.h"
#include "fileio.h"
#include "install.h"
#include "mkdir.h"
#include "rm-rf.h"
#include "string-util.h"
static void test_basic_mask_and_enable(const char *root) {
const char *p;
UnitFileState state;
UnitFileChange *changes = NULL;
unsigned n_changes = 0;
test: bump up log level for install root test
2016-04-06 18:49:27 +03:00
log_set_max_level(LOG_DEBUG);
install: follow unit file symlinks in /usr, but not /etc when looking for [Install] data Some distributions use alias unit files via symlinks in /usr to cover for legacy service names. With this change we'll allow "systemctl enable" on such aliases. Previously, our rule was that symlinks are user configuration that "systemctl enable" + "systemctl disable" creates and removes, while unit files is where the instructions to do so are store. As a result of the rule we'd never read install information through symlinks, since that would mix enablement state with installation instructions. Now, the new rule is that only symlinks inside of /etc are configuration. Unit files, and symlinks in /usr are now valid for installation instructions. This patch is quite a rework of the whole install logic, and makes the following addional changes: - Adds a complete test "test-instal-root" that tests the install logic pretty comprehensively. - Never uses canonicalize_file_name(), because that's incompatible with operation relative to a specific root directory. - unit_file_get_state() is reworked to return a proper error, and returns the state in a call-by-ref parameter. This cleans up confusion between the enum type and errno-like errors. - The new logic puts a limit on how long to follow unit file symlinks: it will do so only for 64 steps at max. - The InstallContext object's fields are renamed to will_process and has_processed (will_install and has_installed) since they are also used for deinstallation and all kinds of other operations. - The root directory is always verified before use. - install.c is reordered to place the exported functions together. - Stricter rules are followed when traversing symlinks: the unit suffix must say identical, and it's not allowed to link between regular units and templated units. - Various modernizations - The "invalid" unit file state has been renamed to "bad", in order to avoid confusion between UNIT_FILE_INVALID and _UNIT_FILE_STATE_INVALID. Given that the state should normally not be seen and is not documented this should not be a problematic change. The new name is now documented however. Fixes #1375, #1718, #1706
2015-10-08 23:31:56 +03:00
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "a.service", NULL) == -ENOENT);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "b.service", NULL) == -ENOENT);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "c.service", NULL) == -ENOENT);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "d.service", NULL) == -ENOENT);
p = strjoina(root, "/usr/lib/systemd/system/a.service");
assert_se(write_string_file(p,
"[Install]\n"
"WantedBy=multi-user.target\n", WRITE_STRING_FILE_CREATE) >= 0);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "a.service", NULL) >= 0);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "a.service", &state) >= 0 && state == UNIT_FILE_DISABLED);
p = strjoina(root, "/usr/lib/systemd/system/b.service");
assert_se(symlink("a.service", p) >= 0);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "b.service", NULL) >= 0);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "b.service", &state) >= 0 && state == UNIT_FILE_DISABLED);
p = strjoina(root, "/usr/lib/systemd/system/c.service");
assert_se(symlink("/usr/lib/systemd/system/a.service", p) >= 0);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "c.service", NULL) >= 0);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "c.service", &state) >= 0 && state == UNIT_FILE_DISABLED);
p = strjoina(root, "/usr/lib/systemd/system/d.service");
assert_se(symlink("c.service", p) >= 0);
/* This one is interesting, as d follows a relative, then an absolute symlink */
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "d.service", NULL) >= 0);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "d.service", &state) >= 0 && state == UNIT_FILE_DISABLED);
assert_se(unit_file_mask(UNIT_FILE_SYSTEM, false, root, STRV_MAKE("a.service"), false, &changes, &n_changes) >= 0);
assert_se(n_changes == 1);
assert_se(changes[0].type == UNIT_FILE_SYMLINK);
assert_se(streq(changes[0].source, "/dev/null"));
p = strjoina(root, SYSTEM_CONFIG_UNIT_PATH"/a.service");
assert_se(streq(changes[0].path, p));
unit_file_changes_free(changes, n_changes);
changes = NULL; n_changes = 0;
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "a.service", &state) >= 0 && state == UNIT_FILE_MASKED);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "b.service", &state) >= 0 && state == UNIT_FILE_MASKED);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "c.service", &state) >= 0 && state == UNIT_FILE_MASKED);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "d.service", &state) >= 0 && state == UNIT_FILE_MASKED);
/* Enabling a masked unit should fail! */
assert_se(unit_file_enable(UNIT_FILE_SYSTEM, false, root, STRV_MAKE("a.service"), false, &changes, &n_changes) == -ESHUTDOWN);
unit_file_changes_free(changes, n_changes);
changes = NULL; n_changes = 0;
assert_se(unit_file_unmask(UNIT_FILE_SYSTEM, false, root, STRV_MAKE("a.service"), &changes, &n_changes) >= 0);
assert_se(n_changes == 1);
assert_se(changes[0].type == UNIT_FILE_UNLINK);
p = strjoina(root, SYSTEM_CONFIG_UNIT_PATH"/a.service");
assert_se(streq(changes[0].path, p));
unit_file_changes_free(changes, n_changes);
changes = NULL; n_changes = 0;
assert_se(unit_file_enable(UNIT_FILE_SYSTEM, false, root, STRV_MAKE("a.service"), false, &changes, &n_changes) == 1);
assert_se(n_changes == 1);
assert_se(changes[0].type == UNIT_FILE_SYMLINK);
assert_se(streq(changes[0].source, "/usr/lib/systemd/system/a.service"));
p = strjoina(root, SYSTEM_CONFIG_UNIT_PATH"/multi-user.target.wants/a.service");
assert_se(streq(changes[0].path, p));
unit_file_changes_free(changes, n_changes);
changes = NULL; n_changes = 0;
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "a.service", &state) >= 0 && state == UNIT_FILE_ENABLED);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "b.service", &state) >= 0 && state == UNIT_FILE_ENABLED);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "c.service", &state) >= 0 && state == UNIT_FILE_ENABLED);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "d.service", &state) >= 0 && state == UNIT_FILE_ENABLED);
/* Enabling it again should succeed but be a NOP */
assert_se(unit_file_enable(UNIT_FILE_SYSTEM, false, root, STRV_MAKE("a.service"), false, &changes, &n_changes) == 1);
assert_se(n_changes == 0);
unit_file_changes_free(changes, n_changes);
changes = NULL; n_changes = 0;
assert_se(unit_file_disable(UNIT_FILE_SYSTEM, false, root, STRV_MAKE("a.service"), &changes, &n_changes) >= 0);
assert_se(n_changes == 1);
assert_se(changes[0].type == UNIT_FILE_UNLINK);
p = strjoina(root, SYSTEM_CONFIG_UNIT_PATH"/multi-user.target.wants/a.service");
assert_se(streq(changes[0].path, p));
unit_file_changes_free(changes, n_changes);
changes = NULL; n_changes = 0;
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "a.service", &state) >= 0 && state == UNIT_FILE_DISABLED);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "b.service", &state) >= 0 && state == UNIT_FILE_DISABLED);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "c.service", &state) >= 0 && state == UNIT_FILE_DISABLED);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "d.service", &state) >= 0 && state == UNIT_FILE_DISABLED);
/* Disabling a disabled unit must suceed but be a NOP */
assert_se(unit_file_disable(UNIT_FILE_SYSTEM, false, root, STRV_MAKE("a.service"), &changes, &n_changes) >= 0);
assert_se(n_changes == 0);
unit_file_changes_free(changes, n_changes);
changes = NULL; n_changes = 0;
/* Let's enable this indirectly via a symlink */
assert_se(unit_file_enable(UNIT_FILE_SYSTEM, false, root, STRV_MAKE("d.service"), false, &changes, &n_changes) >= 0);
assert_se(n_changes == 1);
assert_se(changes[0].type == UNIT_FILE_SYMLINK);
assert_se(streq(changes[0].source, "/usr/lib/systemd/system/a.service"));
p = strjoina(root, SYSTEM_CONFIG_UNIT_PATH"/multi-user.target.wants/a.service");
assert_se(streq(changes[0].path, p));
unit_file_changes_free(changes, n_changes);
changes = NULL; n_changes = 0;
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "a.service", &state) >= 0 && state == UNIT_FILE_ENABLED);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "b.service", &state) >= 0 && state == UNIT_FILE_ENABLED);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "c.service", &state) >= 0 && state == UNIT_FILE_ENABLED);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "d.service", &state) >= 0 && state == UNIT_FILE_ENABLED);
/* Let's try to reenable */
assert_se(unit_file_reenable(UNIT_FILE_SYSTEM, false, root, STRV_MAKE("b.service"), false, &changes, &n_changes) >= 0);
assert_se(n_changes == 2);
assert_se(changes[0].type == UNIT_FILE_UNLINK);
p = strjoina(root, SYSTEM_CONFIG_UNIT_PATH"/multi-user.target.wants/a.service");
assert_se(streq(changes[0].path, p));
assert_se(changes[1].type == UNIT_FILE_SYMLINK);
assert_se(streq(changes[1].source, "/usr/lib/systemd/system/a.service"));
assert_se(streq(changes[1].path, p));
unit_file_changes_free(changes, n_changes);
changes = NULL; n_changes = 0;
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "a.service", &state) >= 0 && state == UNIT_FILE_ENABLED);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "b.service", &state) >= 0 && state == UNIT_FILE_ENABLED);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "c.service", &state) >= 0 && state == UNIT_FILE_ENABLED);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "d.service", &state) >= 0 && state == UNIT_FILE_ENABLED);
}
static void test_linked_units(const char *root) {
const char *p, *q;
UnitFileState state;
UnitFileChange *changes = NULL;
unsigned n_changes = 0, i;
/*
* We'll test three cases here:
*
* a) a unit file in /opt, that we use "systemctl link" and
* "systemctl enable" on to make it available to the system
*
* b) a unit file in /opt, that is statically linked into
* /usr/lib/systemd/system, that "enable" should work on
* correctly.
*
* c) a unit file in /opt, that is linked into
* /etc/systemd/system, and where "enable" should result in
* -ELOOP, since using information from /etc to generate
* information in /etc should not be allowed.
*/
p = strjoina(root, "/opt/linked.service");
assert_se(write_string_file(p,
"[Install]\n"
"WantedBy=multi-user.target\n", WRITE_STRING_FILE_CREATE) >= 0);
p = strjoina(root, "/opt/linked2.service");
assert_se(write_string_file(p,
"[Install]\n"
"WantedBy=multi-user.target\n", WRITE_STRING_FILE_CREATE) >= 0);
p = strjoina(root, "/opt/linked3.service");
assert_se(write_string_file(p,
"[Install]\n"
"WantedBy=multi-user.target\n", WRITE_STRING_FILE_CREATE) >= 0);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "linked.service", NULL) == -ENOENT);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "linked2.service", NULL) == -ENOENT);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "linked3.service", NULL) == -ENOENT);
p = strjoina(root, "/usr/lib/systemd/system/linked2.service");
assert_se(symlink("/opt/linked2.service", p) >= 0);
p = strjoina(root, SYSTEM_CONFIG_UNIT_PATH"/linked3.service");
assert_se(symlink("/opt/linked3.service", p) >= 0);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "linked.service", &state) == -ENOENT);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "linked2.service", &state) >= 0 && state == UNIT_FILE_DISABLED);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "linked3.service", &state) >= 0 && state == UNIT_FILE_LINKED);
/* First, let's link the unit into the search path */
assert_se(unit_file_link(UNIT_FILE_SYSTEM, false, root, STRV_MAKE("/opt/linked.service"), false, &changes, &n_changes) >= 0);
assert_se(n_changes == 1);
assert_se(changes[0].type == UNIT_FILE_SYMLINK);
assert_se(streq(changes[0].source, "/opt/linked.service"));
p = strjoina(root, SYSTEM_CONFIG_UNIT_PATH"/linked.service");
assert_se(streq(changes[0].path, p));
unit_file_changes_free(changes, n_changes);
changes = NULL; n_changes = 0;
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "linked.service", &state) >= 0 && state == UNIT_FILE_LINKED);
/* Let's unlink it from the search path again */
assert_se(unit_file_disable(UNIT_FILE_SYSTEM, false, root, STRV_MAKE("linked.service"), &changes, &n_changes) >= 0);
assert_se(n_changes == 1);
assert_se(changes[0].type == UNIT_FILE_UNLINK);
p = strjoina(root, SYSTEM_CONFIG_UNIT_PATH"/linked.service");
assert_se(streq(changes[0].path, p));
unit_file_changes_free(changes, n_changes);
changes = NULL; n_changes = 0;
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "linked.service", NULL) == -ENOENT);
/* Now, let's not just link it, but also enable it */
assert_se(unit_file_enable(UNIT_FILE_SYSTEM, false, root, STRV_MAKE("/opt/linked.service"), false, &changes, &n_changes) >= 0);
assert_se(n_changes == 2);
p = strjoina(root, SYSTEM_CONFIG_UNIT_PATH"/multi-user.target.wants/linked.service");
q = strjoina(root, SYSTEM_CONFIG_UNIT_PATH"/linked.service");
for (i = 0 ; i < n_changes; i++) {
assert_se(changes[i].type == UNIT_FILE_SYMLINK);
assert_se(streq(changes[i].source, "/opt/linked.service"));
if (p && streq(changes[i].path, p))
p = NULL;
else if (q && streq(changes[i].path, q))
q = NULL;
else
assert_not_reached("wut?");
}
assert(!p && !q);
unit_file_changes_free(changes, n_changes);
changes = NULL; n_changes = 0;
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "linked.service", &state) >= 0 && state == UNIT_FILE_ENABLED);
/* And let's unlink it again */
assert_se(unit_file_disable(UNIT_FILE_SYSTEM, false, root, STRV_MAKE("linked.service"), &changes, &n_changes) >= 0);
assert_se(n_changes == 2);
p = strjoina(root, SYSTEM_CONFIG_UNIT_PATH"/multi-user.target.wants/linked.service");
q = strjoina(root, SYSTEM_CONFIG_UNIT_PATH"/linked.service");
for (i = 0; i < n_changes; i++) {
assert_se(changes[i].type == UNIT_FILE_UNLINK);
if (p && streq(changes[i].path, p))
p = NULL;
else if (q && streq(changes[i].path, q))
q = NULL;
else
assert_not_reached("wut?");
}
assert(!p && !q);
unit_file_changes_free(changes, n_changes);
changes = NULL; n_changes = 0;
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "linked.service", NULL) == -ENOENT);
assert_se(unit_file_enable(UNIT_FILE_SYSTEM, false, root, STRV_MAKE("linked2.service"), false, &changes, &n_changes) >= 0);
assert_se(n_changes == 2);
p = strjoina(root, SYSTEM_CONFIG_UNIT_PATH"/multi-user.target.wants/linked2.service");
q = strjoina(root, SYSTEM_CONFIG_UNIT_PATH"/linked2.service");
for (i = 0 ; i < n_changes; i++) {
assert_se(changes[i].type == UNIT_FILE_SYMLINK);
assert_se(streq(changes[i].source, "/opt/linked2.service"));
if (p && streq(changes[i].path, p))
p = NULL;
else if (q && streq(changes[i].path, q))
q = NULL;
else
assert_not_reached("wut?");
}
assert(!p && !q);
unit_file_changes_free(changes, n_changes);
changes = NULL; n_changes = 0;
assert_se(unit_file_enable(UNIT_FILE_SYSTEM, false, root, STRV_MAKE("linked3.service"), false, &changes, &n_changes) == -ELOOP);
unit_file_changes_free(changes, n_changes);
changes = NULL; n_changes = 0;
}
static void test_default(const char *root) {
_cleanup_free_ char *def = NULL;
UnitFileChange *changes = NULL;
unsigned n_changes = 0;
const char *p;
p = strjoina(root, "/usr/lib/systemd/system/test-default-real.target");
assert_se(write_string_file(p, "# pretty much empty", WRITE_STRING_FILE_CREATE) >= 0);
p = strjoina(root, "/usr/lib/systemd/system/test-default.target");
assert_se(symlink("test-default-real.target", p) >= 0);
assert_se(unit_file_get_default(UNIT_FILE_SYSTEM, root, &def) == -ENOENT);
assert_se(unit_file_set_default(UNIT_FILE_SYSTEM, root, "idontexist.target", false, &changes, &n_changes) == -ENOENT);
assert_se(n_changes == 0);
unit_file_changes_free(changes, n_changes);
changes = NULL; n_changes = 0;
assert_se(unit_file_get_default(UNIT_FILE_SYSTEM, root, &def) == -ENOENT);
assert_se(unit_file_set_default(UNIT_FILE_SYSTEM, root, "test-default.target", false, &changes, &n_changes) >= 0);
assert_se(n_changes == 1);
assert_se(changes[0].type == UNIT_FILE_SYMLINK);
assert_se(streq(changes[0].source, "/usr/lib/systemd/system/test-default-real.target"));
p = strjoina(root, SYSTEM_CONFIG_UNIT_PATH"/default.target");
assert_se(streq(changes[0].path, p));
unit_file_changes_free(changes, n_changes);
changes = NULL; n_changes = 0;
assert_se(unit_file_get_default(UNIT_FILE_SYSTEM, root, &def) >= 0);
assert_se(streq_ptr(def, "test-default-real.target"));
}
static void test_add_dependency(const char *root) {
UnitFileChange *changes = NULL;
unsigned n_changes = 0;
const char *p;
p = strjoina(root, "/usr/lib/systemd/system/real-add-dependency-test-target.target");
assert_se(write_string_file(p, "# pretty much empty", WRITE_STRING_FILE_CREATE) >= 0);
p = strjoina(root, "/usr/lib/systemd/system/add-dependency-test-target.target");
assert_se(symlink("real-add-dependency-test-target.target", p) >= 0);
p = strjoina(root, "/usr/lib/systemd/system/real-add-dependency-test-service.service");
assert_se(write_string_file(p, "# pretty much empty", WRITE_STRING_FILE_CREATE) >= 0);
p = strjoina(root, "/usr/lib/systemd/system/add-dependency-test-service.service");
assert_se(symlink("real-add-dependency-test-service.service", p) >= 0);
assert_se(unit_file_add_dependency(UNIT_FILE_SYSTEM, false, root, STRV_MAKE("add-dependency-test-service.service"), "add-dependency-test-target.target", UNIT_WANTS, false, &changes, &n_changes) >= 0);
assert_se(n_changes == 1);
assert_se(changes[0].type == UNIT_FILE_SYMLINK);
assert_se(streq(changes[0].source, "/usr/lib/systemd/system/real-add-dependency-test-service.service"));
p = strjoina(root, SYSTEM_CONFIG_UNIT_PATH"/real-add-dependency-test-target.target.wants/real-add-dependency-test-service.service");
assert_se(streq(changes[0].path, p));
unit_file_changes_free(changes, n_changes);
changes = NULL; n_changes = 0;
}
static void test_template_enable(const char *root) {
UnitFileChange *changes = NULL;
unsigned n_changes = 0;
UnitFileState state;
const char *p;
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "template@.service", &state) == -ENOENT);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "template@def.service", &state) == -ENOENT);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "template@foo.service", &state) == -ENOENT);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "template-symlink@foo.service", &state) == -ENOENT);
p = strjoina(root, "/usr/lib/systemd/system/template@.service");
assert_se(write_string_file(p,
"[Install]\n"
"DefaultInstance=def\n"
"WantedBy=multi-user.target\n", WRITE_STRING_FILE_CREATE) >= 0);
p = strjoina(root, "/usr/lib/systemd/system/template-symlink@.service");
assert_se(symlink("template@.service", p) >= 0);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "template@.service", &state) >= 0 && state == UNIT_FILE_DISABLED);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "template@def.service", &state) >= 0 && state == UNIT_FILE_DISABLED);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "template@foo.service", &state) >= 0 && state == UNIT_FILE_DISABLED);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "template-symlink@.service", &state) >= 0 && state == UNIT_FILE_DISABLED);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "template-symlink@def.service", &state) >= 0 && state == UNIT_FILE_DISABLED);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "template-symlink@foo.service", &state) >= 0 && state == UNIT_FILE_DISABLED);
assert_se(unit_file_enable(UNIT_FILE_SYSTEM, false, root, STRV_MAKE("template@.service"), false, &changes, &n_changes) >= 0);
assert_se(n_changes == 1);
assert_se(changes[0].type == UNIT_FILE_SYMLINK);
assert_se(streq(changes[0].source, "/usr/lib/systemd/system/template@.service"));
p = strjoina(root, SYSTEM_CONFIG_UNIT_PATH"/multi-user.target.wants/template@def.service");
assert_se(streq(changes[0].path, p));
unit_file_changes_free(changes, n_changes);
changes = NULL; n_changes = 0;
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "template@.service", &state) >= 0 && state == UNIT_FILE_ENABLED);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "template@def.service", &state) >= 0 && state == UNIT_FILE_ENABLED);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "template@foo.service", &state) >= 0 && state == UNIT_FILE_DISABLED);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "template-symlink@.service", &state) >= 0 && state == UNIT_FILE_ENABLED);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "template-symlink@def.service", &state) >= 0 && state == UNIT_FILE_ENABLED);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "template-symlink@foo.service", &state) >= 0 && state == UNIT_FILE_DISABLED);
assert_se(unit_file_disable(UNIT_FILE_SYSTEM, false, root, STRV_MAKE("template@.service"), &changes, &n_changes) >= 0);
assert_se(n_changes == 1);
assert_se(changes[0].type == UNIT_FILE_UNLINK);
assert_se(streq(changes[0].path, p));
unit_file_changes_free(changes, n_changes);
changes = NULL; n_changes = 0;
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "template@.service", &state) >= 0 && state == UNIT_FILE_DISABLED);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "template@def.service", &state) >= 0 && state == UNIT_FILE_DISABLED);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "template@foo.service", &state) >= 0 && state == UNIT_FILE_DISABLED);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "template-symlink@.service", &state) >= 0 && state == UNIT_FILE_DISABLED);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "template-symlink@def.service", &state) >= 0 && state == UNIT_FILE_DISABLED);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "template-symlink@foo.service", &state) >= 0 && state == UNIT_FILE_DISABLED);
assert_se(unit_file_enable(UNIT_FILE_SYSTEM, false, root, STRV_MAKE("template@foo.service"), false, &changes, &n_changes) >= 0);
assert_se(changes[0].type == UNIT_FILE_SYMLINK);
assert_se(streq(changes[0].source, "/usr/lib/systemd/system/template@.service"));
p = strjoina(root, SYSTEM_CONFIG_UNIT_PATH"/multi-user.target.wants/template@foo.service");
assert_se(streq(changes[0].path, p));
unit_file_changes_free(changes, n_changes);
changes = NULL; n_changes = 0;
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "template@.service", &state) >= 0 && state == UNIT_FILE_ENABLED);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "template@def.service", &state) >= 0 && state == UNIT_FILE_DISABLED);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "template@foo.service", &state) >= 0 && state == UNIT_FILE_ENABLED);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "template-symlink@foo.service", &state) >= 0 && state == UNIT_FILE_ENABLED);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "template-symlink@def.service", &state) >= 0 && state == UNIT_FILE_DISABLED);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "template-symlink@foo.service", &state) >= 0 && state == UNIT_FILE_ENABLED);
assert_se(unit_file_disable(UNIT_FILE_SYSTEM, false, root, STRV_MAKE("template@foo.service"), &changes, &n_changes) >= 0);
assert_se(n_changes == 1);
assert_se(changes[0].type == UNIT_FILE_UNLINK);
assert_se(streq(changes[0].path, p));
unit_file_changes_free(changes, n_changes);
changes = NULL; n_changes = 0;
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "template@.service", &state) >= 0 && state == UNIT_FILE_DISABLED);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "template@def.service", &state) >= 0 && state == UNIT_FILE_DISABLED);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "template@foo.service", &state) >= 0 && state == UNIT_FILE_DISABLED);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "template@quux.service", &state) >= 0 && state == UNIT_FILE_DISABLED);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "template-symlink@.service", &state) >= 0 && state == UNIT_FILE_DISABLED);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "template-symlink@def.service", &state) >= 0 && state == UNIT_FILE_DISABLED);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "template-symlink@foo.service", &state) >= 0 && state == UNIT_FILE_DISABLED);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "template-symlink@quux.service", &state) >= 0 && state == UNIT_FILE_DISABLED);
assert_se(unit_file_enable(UNIT_FILE_SYSTEM, false, root, STRV_MAKE("template-symlink@quux.service"), false, &changes, &n_changes) >= 0);
assert_se(changes[0].type == UNIT_FILE_SYMLINK);
assert_se(streq(changes[0].source, "/usr/lib/systemd/system/template@.service"));
p = strjoina(root, SYSTEM_CONFIG_UNIT_PATH"/multi-user.target.wants/template@quux.service");
assert_se(streq(changes[0].path, p));
unit_file_changes_free(changes, n_changes);
changes = NULL; n_changes = 0;
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "template@.service", &state) >= 0 && state == UNIT_FILE_ENABLED);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "template@def.service", &state) >= 0 && state == UNIT_FILE_DISABLED);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "template@foo.service", &state) >= 0 && state == UNIT_FILE_DISABLED);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "template@quux.service", &state) >= 0 && state == UNIT_FILE_ENABLED);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "template-symlink@.service", &state) >= 0 && state == UNIT_FILE_ENABLED);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "template-symlink@def.service", &state) >= 0 && state == UNIT_FILE_DISABLED);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "template-symlink@foo.service", &state) >= 0 && state == UNIT_FILE_DISABLED);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "template-symlink@quux.service", &state) >= 0 && state == UNIT_FILE_ENABLED);
}
static void test_indirect(const char *root) {
UnitFileChange *changes = NULL;
unsigned n_changes = 0;
UnitFileState state;
const char *p;
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "indirecta.service", &state) == -ENOENT);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "indirectb.service", &state) == -ENOENT);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "indirectc.service", &state) == -ENOENT);
p = strjoina(root, "/usr/lib/systemd/system/indirecta.service");
assert_se(write_string_file(p,
"[Install]\n"
"Also=indirectb.service\n", WRITE_STRING_FILE_CREATE) >= 0);
p = strjoina(root, "/usr/lib/systemd/system/indirectb.service");
assert_se(write_string_file(p,
"[Install]\n"
"WantedBy=multi-user.target\n", WRITE_STRING_FILE_CREATE) >= 0);
p = strjoina(root, "/usr/lib/systemd/system/indirectc.service");
assert_se(symlink("indirecta.service", p) >= 0);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "indirecta.service", &state) >= 0 && state == UNIT_FILE_INDIRECT);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "indirectb.service", &state) >= 0 && state == UNIT_FILE_DISABLED);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "indirectc.service", &state) >= 0 && state == UNIT_FILE_INDIRECT);
assert_se(unit_file_enable(UNIT_FILE_SYSTEM, false, root, STRV_MAKE("indirectc.service"), false, &changes, &n_changes) >= 0);
assert_se(n_changes == 1);
assert_se(changes[0].type == UNIT_FILE_SYMLINK);
assert_se(streq(changes[0].source, "/usr/lib/systemd/system/indirectb.service"));
p = strjoina(root, SYSTEM_CONFIG_UNIT_PATH"/multi-user.target.wants/indirectb.service");
assert_se(streq(changes[0].path, p));
unit_file_changes_free(changes, n_changes);
changes = NULL; n_changes = 0;
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "indirecta.service", &state) >= 0 && state == UNIT_FILE_INDIRECT);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "indirectb.service", &state) >= 0 && state == UNIT_FILE_ENABLED);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "indirectc.service", &state) >= 0 && state == UNIT_FILE_INDIRECT);
assert_se(unit_file_disable(UNIT_FILE_SYSTEM, false, root, STRV_MAKE("indirectc.service"), &changes, &n_changes) >= 0);
assert_se(n_changes == 1);
assert_se(changes[0].type == UNIT_FILE_UNLINK);
p = strjoina(root, SYSTEM_CONFIG_UNIT_PATH"/multi-user.target.wants/indirectb.service");
assert_se(streq(changes[0].path, p));
unit_file_changes_free(changes, n_changes);
changes = NULL; n_changes = 0;
}
static void test_preset_and_list(const char *root) {
UnitFileChange *changes = NULL;
unsigned n_changes = 0, i;
const char *p, *q;
UnitFileState state;
bool got_yes = false, got_no = false;
Iterator j;
UnitFileList *fl;
Hashmap *h;
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "preset-yes.service", &state) == -ENOENT);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "preset-no.service", &state) == -ENOENT);
p = strjoina(root, "/usr/lib/systemd/system/preset-yes.service");
assert_se(write_string_file(p,
"[Install]\n"
"WantedBy=multi-user.target\n", WRITE_STRING_FILE_CREATE) >= 0);
p = strjoina(root, "/usr/lib/systemd/system/preset-no.service");
assert_se(write_string_file(p,
"[Install]\n"
"WantedBy=multi-user.target\n", WRITE_STRING_FILE_CREATE) >= 0);
p = strjoina(root, "/usr/lib/systemd/system-preset/test.preset");
assert_se(write_string_file(p,
"enable *-yes.*\n"
"disable *\n", WRITE_STRING_FILE_CREATE) >= 0);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "preset-yes.service", &state) >= 0 && state == UNIT_FILE_DISABLED);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "preset-no.service", &state) >= 0 && state == UNIT_FILE_DISABLED);
assert_se(unit_file_preset(UNIT_FILE_SYSTEM, false, root, STRV_MAKE("preset-yes.service"), UNIT_FILE_PRESET_FULL, false, &changes, &n_changes) >= 0);
assert_se(n_changes == 1);
assert_se(changes[0].type == UNIT_FILE_SYMLINK);
assert_se(streq(changes[0].source, "/usr/lib/systemd/system/preset-yes.service"));
p = strjoina(root, SYSTEM_CONFIG_UNIT_PATH"/multi-user.target.wants/preset-yes.service");
assert_se(streq(changes[0].path, p));
unit_file_changes_free(changes, n_changes);
changes = NULL; n_changes = 0;
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "preset-yes.service", &state) >= 0 && state == UNIT_FILE_ENABLED);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "preset-no.service", &state) >= 0 && state == UNIT_FILE_DISABLED);
assert_se(unit_file_disable(UNIT_FILE_SYSTEM, false, root, STRV_MAKE("preset-yes.service"), &changes, &n_changes) >= 0);
assert_se(n_changes == 1);
assert_se(changes[0].type == UNIT_FILE_UNLINK);
p = strjoina(root, SYSTEM_CONFIG_UNIT_PATH"/multi-user.target.wants/preset-yes.service");
assert_se(streq(changes[0].path, p));
unit_file_changes_free(changes, n_changes);
changes = NULL; n_changes = 0;
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "preset-yes.service", &state) >= 0 && state == UNIT_FILE_DISABLED);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "preset-no.service", &state) >= 0 && state == UNIT_FILE_DISABLED);
assert_se(unit_file_preset(UNIT_FILE_SYSTEM, false, root, STRV_MAKE("preset-no.service"), UNIT_FILE_PRESET_FULL, false, &changes, &n_changes) >= 0);
assert_se(n_changes == 0);
unit_file_changes_free(changes, n_changes);
changes = NULL; n_changes = 0;
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "preset-yes.service", &state) >= 0 && state == UNIT_FILE_DISABLED);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "preset-no.service", &state) >= 0 && state == UNIT_FILE_DISABLED);
assert_se(unit_file_preset_all(UNIT_FILE_SYSTEM, false, root, UNIT_FILE_PRESET_FULL, false, &changes, &n_changes) >= 0);
assert_se(n_changes > 0);
p = strjoina(root, SYSTEM_CONFIG_UNIT_PATH"/multi-user.target.wants/preset-yes.service");
for (i = 0; i < n_changes; i++) {
if (changes[i].type == UNIT_FILE_SYMLINK) {
assert_se(streq(changes[i].source, "/usr/lib/systemd/system/preset-yes.service"));
assert_se(streq(changes[i].path, p));
} else
assert_se(changes[i].type == UNIT_FILE_UNLINK);
}
unit_file_changes_free(changes, n_changes);
changes = NULL; n_changes = 0;
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "preset-yes.service", &state) >= 0 && state == UNIT_FILE_ENABLED);
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, "preset-no.service", &state) >= 0 && state == UNIT_FILE_DISABLED);
assert_se(h = hashmap_new(&string_hash_ops));
assert_se(unit_file_get_list(UNIT_FILE_SYSTEM, root, h) >= 0);
p = strjoina(root, "/usr/lib/systemd/system/preset-yes.service");
q = strjoina(root, "/usr/lib/systemd/system/preset-no.service");
HASHMAP_FOREACH(fl, h, j) {
assert_se(unit_file_get_state(UNIT_FILE_SYSTEM, root, basename(fl->path), &state) >= 0);
assert_se(fl->state == state);
if (streq(fl->path, p)) {
got_yes = true;
assert_se(fl->state == UNIT_FILE_ENABLED);
} else if (streq(fl->path, q)) {
got_no = true;
assert_se(fl->state == UNIT_FILE_DISABLED);
} else
assert_se(IN_SET(fl->state, UNIT_FILE_DISABLED, UNIT_FILE_STATIC, UNIT_FILE_INDIRECT));
}
unit_file_list_free(h);
assert_se(got_yes && got_no);
}
int main(int argc, char *argv[]) {
char root[] = "/tmp/rootXXXXXX";
const char *p;
assert_se(mkdtemp(root));
p = strjoina(root, "/usr/lib/systemd/system/");
assert_se(mkdir_p(p, 0755) >= 0);
p = strjoina(root, SYSTEM_CONFIG_UNIT_PATH"/");
assert_se(mkdir_p(p, 0755) >= 0);
p = strjoina(root, "/run/systemd/system/");
assert_se(mkdir_p(p, 0755) >= 0);
p = strjoina(root, "/opt/");
assert_se(mkdir_p(p, 0755) >= 0);
p = strjoina(root, "/usr/lib/systemd/system-preset/");
assert_se(mkdir_p(p, 0755) >= 0);
test_basic_mask_and_enable(root);
test_linked_units(root);
test_default(root);
test_add_dependency(root);
test_template_enable(root);
test_indirect(root);
test_preset_and_list(root);
assert_se(rm_rf(root, REMOVE_ROOT|REMOVE_PHYSICAL) >= 0);
return 0;
}
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