From 3f896a2abd76972eafe636cac4110608b6d3ff2f Mon Sep 17 00:00:00 2001
From: Kay Sievers <kay.sievers@vrfy.org>
Date: Thu, 22 Apr 2010 18:33:24 +0200
Subject: [PATCH] all to match against a given TAG==

---
 udev/udev-rules.c | 24 +++++++++++++++++++++++-
 udev/udev.xml     |  7 +++++++
 2 files changed, 30 insertions(+), 1 deletion(-)

diff --git a/udev/udev-rules.c b/udev/udev-rules.c
index b5016d0b..59657239 100644
--- a/udev/udev-rules.c
+++ b/udev/udev-rules.c
@@ -125,6 +125,7 @@ enum token_type {
 	TK_M_DEVLINK,			/* val */
 	TK_M_NAME,			/* val */
 	TK_M_ENV,			/* val, attr */
+	TK_M_TAG,			/* val */
 	TK_M_SUBSYSTEM,			/* val */
 	TK_M_DRIVER,			/* val */
 	TK_M_WAITFOR,			/* val */
@@ -254,6 +255,7 @@ static const char *token_str(enum token_type type)
 		[TK_M_DEVLINK] =		"M DEVLINK",
 		[TK_M_NAME] =			"M NAME",
 		[TK_M_ENV] =			"M ENV",
+		[TK_M_TAG] =			"M TAG",
 		[TK_M_SUBSYSTEM] =		"M SUBSYSTEM",
 		[TK_M_DRIVER] =			"M DRIVER",
 		[TK_M_WAITFOR] =		"M WAITFOR",
@@ -356,6 +358,7 @@ static void dump_token(struct udev_rules *rules, struct token *token)
 		dbg(rules->udev, "%s %s '%s' '%s'(%s)\n",
 		    token_str(type), operation_str(op), attr, value, string_glob_str(glob));
 		break;
+	case TK_M_TAG:
 	case TK_A_TAG:
 		dbg(rules->udev, "%s %s '%s'\n", token_str(type), operation_str(op), value);
 		break;
@@ -1008,6 +1011,7 @@ static int rule_add_key(struct rule_tmp *rule_tmp, enum token_type type,
 	case TK_A_MODE:
 	case TK_A_NAME:
 	case TK_A_GOTO:
+	case TK_M_TAG:
 	case TK_A_TAG:
 		token->key.value_off = add_string(rule_tmp->rules, value);
 		break;
@@ -1357,7 +1361,10 @@ static int add_rule(struct udev_rules *rules, char *line,
 		}
 
 		if (strcmp(key, "TAG") == 0) {
-			rule_add_key(&rule_tmp, TK_A_TAG, op, value, NULL);
+			if (op < OP_MATCH_MAX)
+				rule_add_key(&rule_tmp, TK_M_TAG, op, value, NULL);
+			else
+				rule_add_key(&rule_tmp, TK_A_TAG, op, value, NULL);
 			continue;
 		}
 
@@ -2104,6 +2111,21 @@ int udev_rules_apply_to_event(struct udev_rules *rules, struct udev_event *event
 					goto nomatch;
 				break;
 			}
+		case TK_M_TAG:
+			{
+				struct udev_list_entry *list_entry;
+				bool match = false;
+
+				udev_list_entry_foreach(list_entry, udev_device_get_tags_list_entry(event->dev)) {
+					if (strcmp(&rules->buf[cur->key.value_off], udev_list_entry_get_name(list_entry)) == 0) {
+						match = true;
+						break;
+					}
+				}
+				if (!match && (cur->key.op != OP_NOMATCH))
+					goto nomatch;
+				break;
+			}
 		case TK_M_SUBSYSTEM:
 			if (match_key(rules, cur, udev_device_get_subsystem(event->dev)) != 0)
 				goto nomatch;
diff --git a/udev/udev.xml b/udev/udev.xml
index 842fd5d5..d2277c93 100644
--- a/udev/udev.xml
+++ b/udev/udev.xml
@@ -237,6 +237,13 @@
               </listitem>
             </varlistentry>
 
+            <varlistentry>
+              <term><option>TAG</option></term>
+              <listitem>
+                <para>Match against a device tag.</para>
+              </listitem>
+            </varlistentry>
+
             <varlistentry>
               <term><option>TEST{<replaceable>octal mode mask</replaceable>}</option></term>
               <listitem>
-- 
2.39.5