#include <sys/statvfs.h>
#include <fnmatch.h>
-#ifdef HAVE_SELINUX
-#include <selinux/selinux.h>
-#endif
-
#include <systemd/sd-id128.h>
#include "util.h"
#include "condition.h"
#include "virt.h"
#include "path-util.h"
#include "fileio.h"
+#include "unit.h"
+#include "smack-util.h"
+#include "apparmor-util.h"
+#include "ima-util.h"
+#include "selinux-util.h"
Condition* condition_new(ConditionType type, const char *parameter, bool trigger, bool negate) {
Condition *c;
condition_free(c);
}
-static bool test_kernel_command_line(const char *parameter) {
+static bool condition_test_kernel_command_line(Condition *c) {
char *line, *w, *state, *word = NULL;
bool equal;
int r;
size_t l, pl;
bool found = false;
- assert(parameter);
-
- if (detect_container(NULL) > 0)
- return false;
+ assert(c);
+ assert(c->parameter);
+ assert(c->type == CONDITION_KERNEL_COMMAND_LINE);
- r = read_one_line_file("/proc/cmdline", &line);
- if (r < 0) {
+ r = proc_cmdline(&line);
+ if (r < 0)
log_warning("Failed to read /proc/cmdline, ignoring: %s", strerror(-r));
- return false;
- }
+ if (r <= 0)
+ return c->negate;
- equal = !!strchr(parameter, '=');
- pl = strlen(parameter);
+ equal = !!strchr(c->parameter, '=');
+ pl = strlen(c->parameter);
FOREACH_WORD_QUOTED(w, l, line, state) {
break;
if (equal) {
- if (streq(word, parameter)) {
+ if (streq(word, c->parameter)) {
found = true;
break;
}
} else {
- if (startswith(word, parameter) && (word[pl] == '=' || word[pl] == 0)) {
+ if (startswith(word, c->parameter) && (word[pl] == '=' || word[pl] == 0)) {
found = true;
break;
}
free(word);
free(line);
- return found;
+ return found == !c->negate;
}
-static bool test_virtualization(const char *parameter) {
+static bool condition_test_virtualization(Condition *c) {
int b;
Virtualization v;
const char *id;
- assert(parameter);
+ assert(c);
+ assert(c->parameter);
+ assert(c->type == CONDITION_VIRTUALIZATION);
v = detect_virtualization(&id);
if (v < 0) {
log_warning("Failed to detect virtualization, ignoring: %s", strerror(-v));
- return false;
+ return c->negate;
}
/* First, compare with yes/no */
- b = parse_boolean(parameter);
+ b = parse_boolean(c->parameter);
if (v > 0 && b > 0)
- return true;
+ return !c->negate;
if (v == 0 && b == 0)
- return true;
+ return !c->negate;
/* Then, compare categorization */
- if (v == VIRTUALIZATION_VM && streq(parameter, "vm"))
- return true;
+ if (v == VIRTUALIZATION_VM && streq(c->parameter, "vm"))
+ return !c->negate;
- if (v == VIRTUALIZATION_CONTAINER && streq(parameter, "container"))
- return true;
+ if (v == VIRTUALIZATION_CONTAINER && streq(c->parameter, "container"))
+ return !c->negate;
/* Finally compare id */
- return v > 0 && streq(parameter, id);
+ return (v > 0 && streq(c->parameter, id)) == !c->negate;
}
-static bool test_security(const char *parameter) {
-#ifdef HAVE_SELINUX
- if (streq(parameter, "selinux"))
- return is_selinux_enabled() > 0;
-#endif
- if (streq(parameter, "apparmor"))
- return access("/sys/kernel/security/apparmor/", F_OK) == 0;
- if (streq(parameter, "smack"))
- return access("/sys/fs/smackfs", F_OK) == 0;
- return false;
+static bool condition_test_security(Condition *c) {
+ assert(c);
+ assert(c->parameter);
+ assert(c->type == CONDITION_SECURITY);
+
+ if (streq(c->parameter, "selinux"))
+ return use_selinux() == !c->negate;
+ if (streq(c->parameter, "apparmor"))
+ return use_apparmor() == !c->negate;
+ if (streq(c->parameter, "ima"))
+ return use_ima() == !c->negate;
+ if (streq(c->parameter, "smack"))
+ return use_smack() == !c->negate;
+ return c->negate;
}
-static bool test_capability(const char *parameter) {
+static bool condition_test_capability(Condition *c) {
cap_value_t value;
FILE *f;
char line[LINE_MAX];
unsigned long long capabilities = (unsigned long long) -1;
+ assert(c);
+ assert(c->parameter);
+ assert(c->type == CONDITION_CAPABILITY);
+
/* If it's an invalid capability, we don't have it */
- if (cap_from_name(parameter, &value) < 0)
- return false;
+ if (cap_from_name(c->parameter, &value) < 0)
+ return c->negate;
/* If it's a valid capability we default to assume
* that we have it */
f = fopen("/proc/self/status", "re");
if (!f)
- return true;
+ return !c->negate;
while (fgets(line, sizeof(line), f)) {
truncate_nl(line);
fclose(f);
- return !!(capabilities & (1ULL << value));
+ return !!(capabilities & (1ULL << value)) == !c->negate;
}
-static bool test_host(const char *parameter) {
+static bool condition_test_host(Condition *c) {
sd_id128_t x, y;
char *h;
int r;
bool b;
- if (sd_id128_from_string(parameter, &x) >= 0) {
+ assert(c);
+ assert(c->parameter);
+ assert(c->type == CONDITION_HOST);
+
+ if (sd_id128_from_string(c->parameter, &x) >= 0) {
r = sd_id128_get_machine(&y);
if (r < 0)
- return false;
+ return c->negate;
return sd_id128_equal(x, y);
}
h = gethostname_malloc();
if (!h)
- return false;
+ return c->negate;
- b = fnmatch(parameter, h, FNM_CASEFOLD) == 0;
+ b = fnmatch(c->parameter, h, FNM_CASEFOLD) == 0;
free(h);
- return b;
+ return b == !c->negate;
}
-static bool test_ac_power(const char *parameter) {
+static bool condition_test_ac_power(Condition *c) {
int r;
- r = parse_boolean(parameter);
+ assert(c);
+ assert(c->parameter);
+ assert(c->type == CONDITION_AC_POWER);
+
+ r = parse_boolean(c->parameter);
if (r < 0)
- return true;
+ return !c->negate;
- return (on_ac_power() != 0) == !!r;
+ return ((on_ac_power() != 0) == !!r) == !c->negate;
}
-bool condition_test(Condition *c) {
+static bool condition_test(Condition *c) {
assert(c);
switch(c->type) {
}
case CONDITION_KERNEL_COMMAND_LINE:
- return test_kernel_command_line(c->parameter) == !c->negate;
+ return condition_test_kernel_command_line(c);
case CONDITION_VIRTUALIZATION:
- return test_virtualization(c->parameter) == !c->negate;
+ return condition_test_virtualization(c);
case CONDITION_SECURITY:
- return test_security(c->parameter) == !c->negate;
+ return condition_test_security(c);
case CONDITION_CAPABILITY:
- return test_capability(c->parameter) == !c->negate;
+ return condition_test_capability(c);
case CONDITION_HOST:
- return test_host(c->parameter) == !c->negate;
+ return condition_test_host(c);
case CONDITION_AC_POWER:
- return test_ac_power(c->parameter) == !c->negate;
+ return condition_test_ac_power(c);
case CONDITION_NULL:
return !c->negate;
}
}
-bool condition_test_list(Condition *first) {
+bool condition_test_list(const char *unit, Condition *first) {
Condition *c;
int triggered = -1;
bool b;
b = condition_test(c);
+ if (unit)
+ log_debug_unit(unit,
+ "%s=%s%s%s %s for %s.",
+ condition_type_to_string(c->type),
+ c->trigger ? "|" : "",
+ c->negate ? "!" : "",
+ c->parameter,
+ b ? "succeeded" : "failed",
+ unit);
+ c->state = b ? 1 : -1;
if (!c->trigger && !b)
return false;
prefix = "";
fprintf(f,
- "%s\t%s: %s%s%s\n",
+ "%s\t%s: %s%s%s %s\n",
prefix,
condition_type_to_string(c->type),
c->trigger ? "|" : "",
c->negate ? "!" : "",
- c->parameter);
+ c->parameter,
+ c->state < 0 ? "failed" : c->state > 0 ? "succeeded" : "untested");
}
void condition_dump_list(Condition *first, FILE *f, const char *prefix) {
[CONDITION_PATH_IS_READ_WRITE] = "ConditionPathIsReadWrite",
[CONDITION_DIRECTORY_NOT_EMPTY] = "ConditionDirectoryNotEmpty",
[CONDITION_FILE_NOT_EMPTY] = "ConditionFileNotEmpty",
+ [CONDITION_FILE_IS_EXECUTABLE] = "ConditionFileIsExecutable",
[CONDITION_KERNEL_COMMAND_LINE] = "ConditionKernelCommandLine",
[CONDITION_VIRTUALIZATION] = "ConditionVirtualization",
[CONDITION_SECURITY] = "ConditionSecurity",
+ [CONDITION_CAPABILITY] = "ConditionCapability",
[CONDITION_HOST] = "ConditionHost",
[CONDITION_AC_POWER] = "ConditionACPower",
[CONDITION_NULL] = "ConditionNull"