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/* SPDX-License-Identifier: LGPL-2.1+ */
#include <stdlib.h>
#include "analyze-condition.h"
#include "condition.h"
#include "conf-parser.h"
#include "load-fragment.h"
#include "service.h"
typedef struct condition_definition {
const char *name;
ConfigParserCallback parser;
ConditionType type;
} condition_definition;
static const condition_definition condition_definitions[] = {
{ "ConditionPathExists", config_parse_unit_condition_path, CONDITION_PATH_EXISTS },
{ "ConditionPathExistsGlob", config_parse_unit_condition_path, CONDITION_PATH_EXISTS_GLOB },
{ "ConditionPathIsDirectory", config_parse_unit_condition_path, CONDITION_PATH_IS_DIRECTORY },
{ "ConditionPathIsSymbolicLink", config_parse_unit_condition_path, CONDITION_PATH_IS_SYMBOLIC_LINK },
{ "ConditionPathIsMountPoint", config_parse_unit_condition_path, CONDITION_PATH_IS_MOUNT_POINT },
{ "ConditionPathIsReadWrite", config_parse_unit_condition_path, CONDITION_PATH_IS_READ_WRITE },
{ "ConditionPathIsEncrypted", config_parse_unit_condition_path, CONDITION_PATH_IS_ENCRYPTED },
{ "ConditionDirectoryNotEmpty", config_parse_unit_condition_path, CONDITION_DIRECTORY_NOT_EMPTY },
{ "ConditionFileNotEmpty", config_parse_unit_condition_path, CONDITION_FILE_NOT_EMPTY },
{ "ConditionFileIsExecutable", config_parse_unit_condition_path, CONDITION_FILE_IS_EXECUTABLE },
{ "ConditionNeedsUpdate", config_parse_unit_condition_path, CONDITION_NEEDS_UPDATE },
{ "ConditionFirstBoot", config_parse_unit_condition_string, CONDITION_FIRST_BOOT },
{ "ConditionKernelCommandLine", config_parse_unit_condition_string, CONDITION_KERNEL_COMMAND_LINE },
{ "ConditionKernelVersion", config_parse_unit_condition_string, CONDITION_KERNEL_VERSION },
{ "ConditionArchitecture", config_parse_unit_condition_string, CONDITION_ARCHITECTURE },
{ "ConditionVirtualization", config_parse_unit_condition_string, CONDITION_VIRTUALIZATION },
{ "ConditionSecurity", config_parse_unit_condition_string, CONDITION_SECURITY },
{ "ConditionCapability", config_parse_unit_condition_string, CONDITION_CAPABILITY },
{ "ConditionHost", config_parse_unit_condition_string, CONDITION_HOST },
{ "ConditionACPower", config_parse_unit_condition_string, CONDITION_AC_POWER },
{ "ConditionUser", config_parse_unit_condition_string, CONDITION_USER },
{ "ConditionGroup", config_parse_unit_condition_string, CONDITION_GROUP },
{ "ConditionControlGroupController", config_parse_unit_condition_string, CONDITION_CONTROL_GROUP_CONTROLLER },
{ "AssertPathExists", config_parse_unit_condition_path, CONDITION_PATH_EXISTS },
{ "AssertPathExistsGlob", config_parse_unit_condition_path, CONDITION_PATH_EXISTS_GLOB },
{ "AssertPathIsDirectory", config_parse_unit_condition_path, CONDITION_PATH_IS_DIRECTORY },
{ "AssertPathIsSymbolicLink", config_parse_unit_condition_path, CONDITION_PATH_IS_SYMBOLIC_LINK },
{ "AssertPathIsMountPoint", config_parse_unit_condition_path, CONDITION_PATH_IS_MOUNT_POINT },
{ "AssertPathIsReadWrite", config_parse_unit_condition_path, CONDITION_PATH_IS_READ_WRITE },
{ "AssertPathIsEncrypted", config_parse_unit_condition_path, CONDITION_PATH_IS_ENCRYPTED },
{ "AssertDirectoryNotEmpty", config_parse_unit_condition_path, CONDITION_DIRECTORY_NOT_EMPTY },
{ "AssertFileNotEmpty", config_parse_unit_condition_path, CONDITION_FILE_NOT_EMPTY },
{ "AssertFileIsExecutable", config_parse_unit_condition_path, CONDITION_FILE_IS_EXECUTABLE },
{ "AssertNeedsUpdate", config_parse_unit_condition_path, CONDITION_NEEDS_UPDATE },
{ "AssertFirstBoot", config_parse_unit_condition_string, CONDITION_FIRST_BOOT },
{ "AssertKernelCommandLine", config_parse_unit_condition_string, CONDITION_KERNEL_COMMAND_LINE },
{ "AssertKernelVersion", config_parse_unit_condition_string, CONDITION_KERNEL_VERSION },
{ "AssertArchitecture", config_parse_unit_condition_string, CONDITION_ARCHITECTURE },
{ "AssertVirtualization", config_parse_unit_condition_string, CONDITION_VIRTUALIZATION },
{ "AssertSecurity", config_parse_unit_condition_string, CONDITION_SECURITY },
{ "AssertCapability", config_parse_unit_condition_string, CONDITION_CAPABILITY },
{ "AssertHost", config_parse_unit_condition_string, CONDITION_HOST },
{ "AssertACPower", config_parse_unit_condition_string, CONDITION_AC_POWER },
{ "AssertUser", config_parse_unit_condition_string, CONDITION_USER },
{ "AssertGroup", config_parse_unit_condition_string, CONDITION_GROUP },
{ "AssertControlGroupController", config_parse_unit_condition_string, CONDITION_CONTROL_GROUP_CONTROLLER },
/* deprecated, but we should still parse them */
{ "ConditionNull", config_parse_unit_condition_null, 0 },
{ "AssertNull", config_parse_unit_condition_null, 0 },
};
static int parse_condition(Unit *u, const char *line) {
const char *p;
Condition **target;
if ((p = startswith(line, "Condition")))
target = &u->conditions;
else if ((p = startswith(line, "Assert")))
target = &u->asserts;
else
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Cannot parse \"%s\".", line);
for (size_t i = 0; i < ELEMENTSOF(condition_definitions); i++) {
const condition_definition *c = &condition_definitions[i];
p = startswith(line, c->name);
if (!p)
continue;
p += strspn(p, WHITESPACE);
if (*p != '=')
continue;
p++;
p += strspn(p, WHITESPACE);
return c->parser(NULL, "(stdin)", 0, NULL, 0, c->name, c->type, p, target, u);
}
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Cannot parse \"%s\".", line);
}
_printf_(7, 8)
static int log_helper(void *userdata, int level, int error, const char *file, int line, const char *func, const char *format, ...) {
Unit *u = userdata;
va_list ap;
int r;
assert(u);
/* "upgrade" debug messages */
level = MIN(LOG_INFO, level);
va_start(ap, format);
r = log_object_internalv(level, error, file, line, func,
NULL,
u->id,
NULL,
NULL,
format, ap);
va_end(ap);
return r;
}
int verify_conditions(char **lines, UnitFileScope scope) {
_cleanup_(manager_freep) Manager *m = NULL;
Unit *u;
char **line;
int r, q = 1;
r = manager_new(scope, MANAGER_TEST_RUN_MINIMAL, &m);
if (r < 0)
return log_error_errno(r, "Failed to initialize manager: %m");
log_debug("Starting manager...");
r = manager_startup(m, NULL, NULL);
if (r < 0)
return r;
r = unit_new_for_name(m, sizeof(Service), "test.service", &u);
if (r < 0)
return log_error_errno(r, "Failed to create test.service: %m");
STRV_FOREACH(line, lines) {
r = parse_condition(u, *line);
if (r < 0)
return r;
}
r = condition_test_list(u->asserts, environ, assert_type_to_string, log_helper, u);
if (u->asserts)
log_notice("Asserts %s.", r > 0 ? "succeeded" : "failed");
q = condition_test_list(u->conditions, environ, condition_type_to_string, log_helper, u);
if (u->conditions)
log_notice("Conditions %s.", q > 0 ? "succeeded" : "failed");
return r > 0 && q > 0 ? 0 : -EIO;
}
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