X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=udev_rules_parse.c;h=be0757374e216f2e2822e75c955c83a49a7b138f;hp=0021ec40be481eb14572978cde8a1b4492caba1a;hb=fa5c98ab9c9fa86e7078011c6c95597b74be2103;hpb=613ffbeb15e0507581e5037850c1ea5d56cd0928

diff --git a/udev_rules_parse.c b/udev_rules_parse.c
index 0021ec40b..be0757374 100644
--- a/udev_rules_parse.c
+++ b/udev_rules_parse.c
@@ -1,12 +1,9 @@
 /*
  * udev_rules_parse.c
  *
- * Userspace devfs
- *
  * Copyright (C) 2003,2004 Greg Kroah-Hartman <greg@kroah.com>
  * Copyright (C) 2003-2005 Kay Sievers <kay.sievers@vrfy.org>
  *
- *
  *	This program is free software; you can redistribute it and/or modify it
  *	under the terms of the GNU General Public License as published by the
  *	Free Software Foundation version 2 of the License.
@@ -52,8 +49,10 @@ struct udev_rule *udev_rules_iter_next(struct udev_rules *rules)
 		return NULL;
 
 	dbg("current=%zi", rules->current);
-	if (rules->current >= rules->bufsize)
+	if (rules->current >= rules->bufsize) {
+		dbg("no more rules");
 		return NULL;
+	}
 
 	/* get next rule */
 	rule = (struct udev_rule *) (rules->buf + rules->current);
@@ -62,6 +61,28 @@ struct udev_rule *udev_rules_iter_next(struct udev_rules *rules)
 	return rule;
 }
 
+struct udev_rule *udev_rules_iter_label(struct udev_rules *rules, const char *label)
+{
+	static struct udev_rule *rule;
+
+next:
+	dbg("current=%zi", rules->current);
+	if (rules->current >= rules->bufsize) {
+		dbg("no more rules");
+		return NULL;
+	}
+	rule = (struct udev_rule *) (rules->buf + rules->current);
+
+	if (strcmp(&rule->buf[rule->label.val_off], label) != 0) {
+		dbg("moving forward, looking for label '%s'", label);
+		rules->current += sizeof(struct udev_rule) + rule->bufsize;
+		goto next;
+	}
+
+	dbg("found label '%s'", label);
+	return rule;
+}
+
 static int get_key(char **line, char **key, enum key_operation *operation, char **value)
 {
 	char *linepos;
@@ -217,6 +238,7 @@ static int add_to_rules(struct udev_rules *rules, char *line)
 	int valid;
 	char *linepos;
 	char *attr;
+	size_t padding;
 	int retval;
 
 	/* get all the keys */
@@ -237,6 +259,18 @@ static int add_to_rules(struct udev_rules *rules, char *line)
 		if (retval)
 			break;
 
+		if (strcasecmp(key, "LABEL") == 0) {
+			add_rule_key(rule, &rule->label, operation, value);
+			valid = 1;
+			continue;
+		}
+
+		if (strcasecmp(key, "GOTO") == 0) {
+			add_rule_key(rule, &rule->goto_label, operation, value);
+			valid = 1;
+			continue;
+		}
+
 		if (strcasecmp(key, "KERNEL") == 0) {
 			add_rule_key(rule, &rule->kernel_name, operation, value);
 			valid = 1;
@@ -311,9 +345,13 @@ static int add_to_rules(struct udev_rules *rules, char *line)
 			attr = get_key_attribute(key + sizeof("IMPORT")-1);
 			if (attr && strstr(attr, "program")) {
 				dbg("IMPORT will be executed");
-				rule->import_exec = 1;
+				rule->import_type  = IMPORT_PROGRAM;
 			} else if (attr && strstr(attr, "file")) {
 				dbg("IMPORT will be included as file");
+				rule->import_type  = IMPORT_FILE;
+			} else if (attr && strstr(attr, "parent")) {
+				dbg("IMPORT will include the parent values");
+				rule->import_type = IMPORT_PARENT;
 			} else {
 				/* figure it out if it is executable */
 				char file[PATH_SIZE];
@@ -326,8 +364,11 @@ static int add_to_rules(struct udev_rules *rules, char *line)
 					pos[0] = '\0';
 				dbg("IMPORT auto mode for '%s'", file);
 				if (!lstat(file, &stats) && (stats.st_mode & S_IXUSR)) {
-						dbg("IMPORT is executable, will be executed");
-						rule->import_exec = 1;
+					dbg("IMPORT is executable, will be executed (autotype)");
+					rule->import_type  = IMPORT_PROGRAM;
+				} else {
+					dbg("IMPORT is not executable, will be included as file (autotype)");
+					rule->import_type  = IMPORT_FILE;
 				}
 			}
 			add_rule_key(rule, &rule->import, operation, value);
@@ -409,7 +450,7 @@ static int add_to_rules(struct udev_rules *rules, char *line)
 					gid_t gid = lookup_group(value);
 					dbg("replacing groupname='%s' by id=%i", value, gid);
 					sprintf(group, "%li", gid);
-					add_rule_key(rule, &rule->owner, operation, group);
+					add_rule_key(rule, &rule->group, operation, group);
 					continue;
 				}
 			}
@@ -463,11 +504,17 @@ static int add_to_rules(struct udev_rules *rules, char *line)
 
 	/* grow buffer and add rule */
 	rule_size = sizeof(struct udev_rule) + rule->bufsize;
+	padding = (sizeof(size_t) - rule_size % sizeof(size_t)) % sizeof(size_t);
+	dbg("add %zi padding bytes", padding);
+	rule_size += padding;
+	rule->bufsize += padding;
+
 	rules->buf = realloc(rules->buf, rules->bufsize + rule_size);
 	if (!rules->buf) {
 		err("realloc failed");
 		goto exit;
 	}
+	dbg("adding rule to offset %zi", rules->bufsize);
 	memcpy(rules->buf + rules->bufsize, rule, rule_size);
 	rules->bufsize += rule_size;
 exit:
@@ -548,6 +595,7 @@ static int rules_map(struct udev_rules *rules, const char *filename)
 		rules->buf = NULL;
 		return -1;
 	}
+	rules->mapped = 1;
 
 	return 0;
 }