honor SELinux labels, when creating and writing config files

[elogind.git] / src / core / condition.c

diff --git a/src/core/condition.c b/src/core/condition.c
index 5dad5248bbac8bbcb2068493e8d6b4263d16725d..30199c10e3bbbeedab5ec05d05db37cdd21b4e2b 100644 (file)
--- a/src/core/condition.c
+++ b/src/core/condition.c
@@ -24,14 +24,19 @@
 #include <string.h>
 #include <unistd.h>
 #include <sys/capability.h>
+#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"
 
 Condition* condition_new(ConditionType type, const char *parameter, bool trigger, bool negate) {
         Condition *c;
@@ -192,6 +197,41 @@ static bool test_capability(const char *parameter) {
         return !!(capabilities & (1ULL << value));
 }
 
+static bool test_host(const char *parameter) {
+        sd_id128_t x, y;
+        char *h;
+        int r;
+        bool b;
+
+        if (sd_id128_from_string(parameter, &x) >= 0) {
+
+                r = sd_id128_get_machine(&y);
+                if (r < 0)
+                        return false;
+
+                return sd_id128_equal(x, y);
+        }
+
+        h = gethostname_malloc();
+        if (!h)
+                return false;
+
+        b = fnmatch(parameter, h, FNM_CASEFOLD) == 0;
+        free(h);
+
+        return b;
+}
+
+static bool test_ac_power(const char *parameter) {
+        int r;
+
+        r = parse_boolean(parameter);
+        if (r < 0)
+                return true;
+
+        return (on_ac_power() != 0) == !!r;
+}
+
 bool condition_test(Condition *c) {
         assert(c);
 
@@ -222,6 +262,9 @@ bool condition_test(Condition *c) {
         case CONDITION_PATH_IS_MOUNT_POINT:
                 return (path_is_mount_point(c->parameter, true) > 0) == !c->negate;
 
+        case CONDITION_PATH_IS_READ_WRITE:
+                return (path_is_read_only_fs(c->parameter) > 0) == c->negate;
+
         case CONDITION_DIRECTORY_NOT_EMPTY: {
                 int k;
 
@@ -229,6 +272,15 @@ bool condition_test(Condition *c) {
                 return !(k == -ENOENT || k > 0) == !c->negate;
         }
 
+        case CONDITION_FILE_NOT_EMPTY: {
+                struct stat st;
+
+                if (stat(c->parameter, &st) < 0)
+                        return c->negate;
+
+                return (S_ISREG(st.st_mode) && st.st_size > 0) == !c->negate;
+        }
+
         case CONDITION_FILE_IS_EXECUTABLE: {
                 struct stat st;
 
@@ -250,6 +302,12 @@ bool condition_test(Condition *c) {
         case CONDITION_CAPABILITY:
                 return test_capability(c->parameter) == !c->negate;
 
+        case CONDITION_HOST:
+                return test_host(c->parameter) == !c->negate;
+
+        case CONDITION_AC_POWER:
+                return test_ac_power(c->parameter) == !c->negate;
+
         case CONDITION_NULL:
                 return !c->negate;
 
@@ -313,10 +371,14 @@ static const char* const condition_type_table[_CONDITION_TYPE_MAX] = {
         [CONDITION_PATH_IS_DIRECTORY] = "ConditionPathIsDirectory",
         [CONDITION_PATH_IS_SYMBOLIC_LINK] = "ConditionPathIsSymbolicLink",
         [CONDITION_PATH_IS_MOUNT_POINT] = "ConditionPathIsMountPoint",
+        [CONDITION_PATH_IS_READ_WRITE] = "ConditionPathIsReadWrite",
         [CONDITION_DIRECTORY_NOT_EMPTY] = "ConditionDirectoryNotEmpty",
+        [CONDITION_FILE_NOT_EMPTY] = "ConditionFileNotEmpty",
         [CONDITION_KERNEL_COMMAND_LINE] = "ConditionKernelCommandLine",
         [CONDITION_VIRTUALIZATION] = "ConditionVirtualization",
         [CONDITION_SECURITY] = "ConditionSecurity",
+        [CONDITION_HOST] = "ConditionHost",
+        [CONDITION_AC_POWER] = "ConditionACPower",
         [CONDITION_NULL] = "ConditionNull"
 };