add TEST=="<file>" key

[elogind.git] / udev_rules.c

diff --git a/udev_rules.c b/udev_rules.c
index e61c9a69b062c02fa2fe083911cc964ba8789d3e..5ded26d049d3c89202d08afec5a10fd8f1b9a041 100644 (file)
--- a/udev_rules.c
+++ b/udev_rules.c
@@ -641,6 +641,29 @@ static int match_rule(struct udevice *udev, struct udev_rule *rule)
                }
        }
 
+       if (rule->test.operation != KEY_OP_UNSET) {
+               char filename[PATH_SIZE];
+               struct stat statbuf;
+               int match;
+
+               strlcpy(filename, key_val(rule, &rule->test), sizeof(filename));
+               udev_rules_apply_format(udev, filename, sizeof(filename));
+
+               match = (stat(filename, &statbuf) == 0);
+               info("'%s' %s", filename, match ? "exists" : "does not exist");
+               if (match && rule->test_mode_mask > 0) {
+                       match = ((statbuf.st_mode & rule->test_mode_mask) > 0);
+                       info("'%s' has mode=%#o and %s %#o", filename, statbuf.st_mode,
+                            match ? "matches" : "does not match",
+                            rule->test_mode_mask);
+               }
+               if (match && rule->test.operation == KEY_OP_NOMATCH)
+                       goto nomatch;
+               if (!match && rule->test.operation == KEY_OP_MATCH)
+                       goto nomatch;
+               dbg("TEST key is true");
+       }
+
        if (rule->wait_for_sysfs.operation != KEY_OP_UNSET) {
                int found;
 
@@ -1037,7 +1060,8 @@ int udev_rules_get_run(struct udev_rules *rules, struct udevice *udev)
 
                dbg("process rule");
                if (rule->name.operation != KEY_OP_UNSET || rule->symlink.operation != KEY_OP_UNSET ||
-                   rule->mode_operation != KEY_OP_UNSET || rule->owner.operation != KEY_OP_UNSET || rule->group.operation != KEY_OP_UNSET) {
+                   rule->mode_operation != KEY_OP_UNSET || rule->owner.operation != KEY_OP_UNSET ||
+                   rule->group.operation != KEY_OP_UNSET) {
                        dbg("skip rule that names a device");
                        continue;
                }
@@ -1050,7 +1074,8 @@ int udev_rules_get_run(struct udev_rules *rules, struct udevice *udev)
                        }
 
                        if (!udev->run_final && rule->run.operation != KEY_OP_UNSET) {
-                               if (rule->run.operation == KEY_OP_ASSIGN || rule->run.operation == KEY_OP_ASSIGN_FINAL) {
+                               if (rule->run.operation == KEY_OP_ASSIGN ||
+                                   rule->run.operation == KEY_OP_ASSIGN_FINAL) {
                                        info("reset run list");
                                        name_list_cleanup(&udev->run_list);
                                }