chiark / gitweb /
[PATCH] remove udev_dbus.h from Makefile
[elogind.git] / namedev.c
index 9a556cb83d7ff8e19383d375f4927dbdfb9f7009..b9d8a3db2c2dec9fc9e8c7b2157b77e0e16b6173 100644 (file)
--- a/namedev.c
+++ b/namedev.c
@@ -21,9 +21,6 @@
  *
  */
 
-/* define this to enable parsing debugging */
-/* #define DEBUG_PARSER */
-
 #include <stddef.h>
 #include <stdlib.h>
 #include <string.h>
 #include <ctype.h>
 #include <unistd.h>
 #include <errno.h>
+#include <time.h>
 #include <sys/wait.h>
+#include <sys/stat.h>
 
+#include "libsysfs/sysfs/libsysfs.h"
 #include "list.h"
 #include "udev.h"
+#include "udev_lib.h"
 #include "udev_version.h"
+#include "logging.h"
 #include "namedev.h"
-#include "libsysfs/libsysfs.h"
-
-#define TYPE_LABEL     "LABEL"
-#define TYPE_NUMBER    "NUMBER"
-#define TYPE_TOPOLOGY  "TOPOLOGY"
-#define TYPE_REPLACE   "REPLACE"
-#define TYPE_CALLOUT   "CALLOUT"
-
-static LIST_HEAD(config_device_list);
+#include "klibc_fixups.h"
 
-static void dump_dev(struct config_device *dev)
-{
-       switch (dev->type) {
-       case KERNEL_NAME:
-               dbg_parse("KERNEL name ='%s'"
-                       " owner = '%s', group = '%s', mode = '%#o'",
-                       dev->name, 
-                       dev->owner, dev->group, dev->mode);
-               break;
-       case LABEL:
-               dbg_parse("LABEL name = '%s', bus = '%s', sysfs_file = '%s', sysfs_value = '%s'"
-                       " owner = '%s', group = '%s', mode = '%#o'",
-                       dev->name, dev->bus, dev->sysfs_file, dev->sysfs_value,
-                       dev->owner, dev->group, dev->mode);
-               break;
-       case NUMBER:
-               dbg_parse("NUMBER name = '%s', bus = '%s', id = '%s'"
-                       " owner = '%s', group = '%s', mode = '%#o'",
-                       dev->name, dev->bus, dev->id,
-                       dev->owner, dev->group, dev->mode);
-               break;
-       case TOPOLOGY:
-               dbg_parse("TOPOLOGY name = '%s', bus = '%s', place = '%s'"
-                       " owner = '%s', group = '%s', mode = '%#o'",
-                       dev->name, dev->bus, dev->place,
-                       dev->owner, dev->group, dev->mode);
-               break;
-       case REPLACE:
-               dbg_parse("REPLACE name = %s, kernel_name = %s"
-                       " owner = '%s', group = '%s', mode = '%#o'",
-                       dev->name, dev->kernel_name,
-                       dev->owner, dev->group, dev->mode);
-               break;
-       case CALLOUT:
-               dbg_parse("CALLOUT name = '%s', program ='%s', bus = '%s', id = '%s'"
-                       " owner = '%s', group = '%s', mode = '%#o'",
-                       dev->name, dev->exec_program, dev->bus, dev->id,
-                       dev->owner, dev->group, dev->mode);
-               break;
-       default:
-               dbg_parse("Unknown type of device!");
-       }
-}
+static struct sysfs_attribute *find_sysfs_attribute(struct sysfs_class_device *class_dev, struct sysfs_device *sysfs_device, char *attr);
 
-#define copy_var(a, b, var)            \
-       if (b->var)                     \
-               a->var = b->var;
+LIST_HEAD(config_device_list);
+LIST_HEAD(perm_device_list);
 
-#define copy_string(a, b, var)         \
-       if (strlen(b->var))             \
-               strcpy(a->var, b->var);
 
-static int add_dev(struct config_device *new_dev)
+/* compare string with pattern (supports * ? [0-9] [!A-Z]) */
+static int strcmp_pattern(const char *p, const char *s)
 {
-       struct list_head *tmp;
-       struct config_device *tmp_dev;
-
-       /* update the values if we already have the device */
-       list_for_each(tmp, &config_device_list) {
-               struct config_device *dev = list_entry(tmp, struct config_device, node);
-               int len = strlen(new_dev->name);
-               if (new_dev->name[len-1] == '*') {
-                       len--;
-                       if (strncmp(dev->name, new_dev->name, len))
-                               continue;
-               } else {
-                       if (strcmp(dev->name, new_dev->name))
-                               continue;
+       if (s[0] == '\0') {
+               while (p[0] == '*')
+                       p++;
+               return (p[0] != '\0');
+       }
+       switch (p[0]) {
+       case '[':
+               {
+                       int not = 0;
+                       p++;
+                       if (p[0] == '!') {
+                               not = 1;
+                               p++;
+                       }
+                       while ((p[0] != '\0') && (p[0] != ']')) {
+                               int match = 0;
+                               if (p[1] == '-') {
+                                       if ((s[0] >= p[0]) && (s[0] <= p[2]))
+                                               match = 1;
+                                       p += 3;
+                               } else {
+                                       match = (p[0] == s[0]);
+                                       p++;
+                               }
+                               if (match ^ not) {
+                                       while ((p[0] != '\0') && (p[0] != ']'))
+                                               p++;
+                                       if (p[0] == ']')
+                                               return strcmp_pattern(p+1, s+1);
+                               }
+                       }
                }
-               /* the same, copy the new info into this structure */
-               copy_var(dev, new_dev, type);
-               copy_var(dev, new_dev, mode);
-               copy_string(dev, new_dev, bus);
-               copy_string(dev, new_dev, sysfs_file);
-               copy_string(dev, new_dev, sysfs_value);
-               copy_string(dev, new_dev, id);
-               copy_string(dev, new_dev, place);
-               copy_string(dev, new_dev, kernel_name);
-               copy_string(dev, new_dev, owner);
-               copy_string(dev, new_dev, group);
+               break;
+       case '*':
+               if (strcmp_pattern(p, s+1))
+                       return strcmp_pattern(p+1, s);
                return 0;
+       case '\0':
+               if (s[0] == '\0') {
+                       return 0;
+               }
+               break;
+       default:
+               if ((p[0] == s[0]) || (p[0] == '?'))
+                       return strcmp_pattern(p+1, s+1);
+               break;
        }
-
-       /* not found, lets create a new structure, and add it to the list */
-       tmp_dev = malloc(sizeof(*tmp_dev));
-       if (!tmp_dev)
-               return -ENOMEM;
-       memcpy(tmp_dev, new_dev, sizeof(*tmp_dev));
-       list_add(&tmp_dev->node, &config_device_list);
-       //dump_dev(tmp_dev);
-       return 0;
+       return 1;
 }
 
-static void dump_dev_list(void)
+static struct perm_device *find_perm(char *name)
 {
-       struct list_head *tmp;
+       struct perm_device *perm;
 
-       list_for_each(tmp, &config_device_list) {
-               struct config_device *dev = list_entry(tmp, struct config_device, node);
-               dump_dev(dev);
+       list_for_each_entry(perm, &perm_device_list, node) {
+               if (strcmp_pattern(perm->name, name))
+                       continue;
+               return perm;
        }
+       return NULL;
 }
-       
-static int get_pair(char **orig_string, char **left, char **right)
-{
-       char *temp;
-       char *string = *orig_string;
 
-       if (!string)
-               return -ENODEV;
+static mode_t get_default_mode(void)
+{
+       mode_t mode = 0600;     /* default to owner rw only */
 
-       /* eat any whitespace */
-       while (isspace(*string))
-               ++string;
+       if (strlen(default_mode_str) != 0)
+               mode = strtol(default_mode_str, NULL, 8);
 
-       /* split based on '=' */
-       temp = strsep(&string, "=");
-       *left = temp;
-       if (!string)
-               return -ENODEV;
+       return mode;
+}
 
-       /* take the right side and strip off the '"' */
-       while (isspace(*string))
-               ++string;
-       if (*string == '"')
-               ++string;
-       else
-               return -ENODEV;
+static char *get_default_owner(void)
+{
+       if (strlen(default_owner_str) == 0)
+               strfieldcpy(default_owner_str, "root");
 
-       temp = strsep(&string, "\"");
-       if (!string || *temp == '\0')
-               return -ENODEV;
-       *right = temp;
-       *orig_string = string;
-       
-       return 0;
+       return default_owner_str;
 }
 
-static int get_value(const char *left, char **orig_string, char **ret_string)
+static char *get_default_group(void)
 {
-       int retval;
-       char *left_string;
+       if (strlen(default_group_str) == 0)
+               strfieldcpy(default_group_str, "root");
 
-       retval = get_pair(orig_string, &left_string, ret_string);
-       if (retval)
-               return retval;
-       if (strcasecmp(left_string, left) != 0)
-               return -ENODEV;
-       return 0;
+       return default_group_str;
 }
 
-static int namedev_init_config(void)
+/* extract possible {attr} and move str behind it */
+static char *get_format_attribute(char **str)
 {
-       char line[255];
-       int lineno;
-       char *temp;
-       char *temp2;
-       char *temp3;
-       FILE *fd;
-       int retval = 0;
-       struct config_device dev;
-
-       dbg("opening %s to read as config", udev_config_filename);
-       fd = fopen(udev_config_filename, "r");
-       if (fd == NULL) {
-               dbg("Can't open %s", udev_config_filename);
-               return -ENODEV;
+       char *pos;
+       char *attr = NULL;
+
+       if (*str[0] == '{') {
+               pos = strchr(*str, '}');
+               if (pos == NULL) {
+                       dbg("missing closing brace for format");
+                       return NULL;
+               }
+               pos[0] = '\0';
+               attr = *str+1;
+               *str = pos+1;
+               dbg("attribute='%s', str='%s'", attr, *str);
        }
+       return attr;
+}
 
-       /* loop through the whole file */
-       lineno = 0;
-       while (1) {
-               /* get a line */
-               temp = fgets(line, sizeof(line), fd);
-               if (temp == NULL)
-                       goto exit;
-               lineno++;
-
-               dbg_parse("read %s", temp);
-
-               /* eat the whitespace at the beginning of the line */
-               while (isspace(*temp))
-                       ++temp;
-
-               /* no more line? */
-               if (*temp == 0x00)
-                       continue;
-
-               /* see if this is a comment */
-               if (*temp == COMMENT_CHARACTER)
-                       continue;
-
-               memset(&dev, 0x00, sizeof(struct config_device));
-
-               /* parse the line */
-               temp2 = strsep(&temp, ",");
-               if (strcasecmp(temp2, TYPE_LABEL) == 0) {
-                       /* label type */
-                       dev.type = LABEL;
-
-                       /* BUS="bus" */
-                       retval = get_value("BUS", &temp, &temp3);
-                       if (retval)
-                               break;
-                       strfieldcpy(dev.bus, temp3);
-
-                       /* file="value" */
-                       temp2 = strsep(&temp, ",");
-                       retval = get_pair(&temp, &temp2, &temp3);
-                       if (retval)
-                               break;
-                       strfieldcpy(dev.sysfs_file, temp2);
-                       strfieldcpy(dev.sysfs_value, temp3);
-
-                       /* NAME="new_name" */
-                       temp2 = strsep(&temp, ",");
-                       retval = get_value("NAME", &temp, &temp3);
-                       if (retval)
-                               break;
-                       strfieldcpy(dev.name, temp3);
-
-                       dbg_parse("LABEL name = '%s', bus = '%s', "
-                               "sysfs_file = '%s', sysfs_value = '%s'", 
-                               dev.name, dev.bus, dev.sysfs_file, 
-                               dev.sysfs_value);
+/* extract possible format length and move str behind it*/
+static int get_format_len(char **str)
+{
+       int num;
+       char *tail;
+
+       if (isdigit(*str[0])) {
+               num = (int) strtoul(*str, &tail, 10);
+               if (num > 0) {
+                       *str = tail;
+                       dbg("format length=%i", num);
+                       return num;
+               } else {
+                       dbg("format parsing error '%s'", *str);
                }
+       }
+       return -1;
+}
 
-               if (strcasecmp(temp2, TYPE_NUMBER) == 0) {
-                       /* number type */
-                       dev.type = NUMBER;
-
-                       /* BUS="bus" */
-                       retval = get_value("BUS", &temp, &temp3);
-                       if (retval)
-                               break;
-                       strfieldcpy(dev.bus, temp3);
-
-                       /* ID="id" */
-                       temp2 = strsep(&temp, ",");
-                       retval = get_value("id", &temp, &temp3);
-                       if (retval)
-                               break;
-                       strfieldcpy(dev.id, temp3);
+static void apply_format(struct udevice *udev, char *string, size_t maxsize,
+                        struct sysfs_class_device *class_dev,
+                        struct sysfs_device *sysfs_device)
+{
+       char temp[NAME_SIZE];
+       char temp2[NAME_SIZE];
+       char *tail;
+       char *pos;
+       char *attr;
+       int len;
+       int i;
+       char c;
+       char *spos;
+       char *rest;
+       int slen;
+       struct sysfs_attribute *tmpattr;
 
-                       /* NAME="new_name" */
-                       temp2 = strsep(&temp, ",");
-                       retval = get_value("NAME", &temp, &temp3);
-                       if (retval)
-                               break;
-                       strfieldcpy(dev.name, temp3);
+       pos = string;
 
-                       dbg_parse("NUMBER name = '%s', bus = '%s', id = '%s'",
-                                       dev.name, dev.bus, dev.id);
+       while (1) {
+               pos = strchr(string, '%');
+               if (pos != NULL) {
+                       pos[0] = '\0';
+                       tail = pos+1;
+                       len = get_format_len(&tail);
+                       c = tail[0];
+                       strfieldcpy(temp, tail+1);
+                       tail = temp;
+               } else {
+                       break;
                }
+               dbg("format=%c, string='%s', tail='%s'",c , string, tail);
 
-               if (strcasecmp(temp2, TYPE_TOPOLOGY) == 0) {
-                       /* number type */
-                       dev.type = TOPOLOGY;
+               attr = get_format_attribute(&tail);
 
-                       /* BUS="bus" */
-                       retval = get_value("BUS", &temp, &temp3);
-                       if (retval)
+               switch (c) {
+               case 'b':
+                       if (strlen(udev->bus_id) == 0)
                                break;
-                       strfieldcpy(dev.bus, temp3);
-
-                       /* PLACE="place" */
-                       temp2 = strsep(&temp, ",");
-                       retval = get_value("place", &temp, &temp3);
-                       if (retval)
+                       strfieldcatmax(string, udev->bus_id, maxsize);
+                       dbg("substitute bus_id '%s'", udev->bus_id);
+                       break;
+               case 'k':
+                       if (strlen(udev->kernel_name) == 0)
                                break;
-                       strfieldcpy(dev.place, temp3);
-
-                       /* NAME="new_name" */
-                       temp2 = strsep(&temp, ",");
-                       retval = get_value("NAME", &temp, &temp3);
-                       if (retval)
+                       strfieldcatmax(string, udev->kernel_name, maxsize);
+                       dbg("substitute kernel name '%s'", udev->kernel_name);
+                       break;
+               case 'n':
+                       if (strlen(udev->kernel_number) == 0)
                                break;
-                       strfieldcpy(dev.name, temp3);
-
-                       dbg_parse("TOPOLOGY name = '%s', bus = '%s', place = '%s'",
-                                       dev.name, dev.bus, dev.place);
-               }
-
-               if (strcasecmp(temp2, TYPE_REPLACE) == 0) {
-                       /* number type */
-                       dev.type = REPLACE;
-
-                       /* KERNEL="kernel_name" */
-                       retval = get_value("KERNEL", &temp, &temp3);
-                       if (retval)
+                       strfieldcatmax(string, udev->kernel_number, maxsize);
+                       dbg("substitute kernel number '%s'", udev->kernel_number);
                                break;
-                       strfieldcpy(dev.kernel_name, temp3);
-
-                       /* NAME="new_name" */
-                       temp2 = strsep(&temp, ",");
-                       retval = get_value("NAME", &temp, &temp3);
-                       if (retval)
+               case 'm':
+                       strintcatmax(string, udev->minor, maxsize);
+                       dbg("substitute minor number '%u'", udev->minor);
+                       break;
+               case 'M':
+                       strintcatmax(string, udev->major, maxsize);
+                       dbg("substitute major number '%u'", udev->major);
+                       break;
+               case 'c':
+                       if (strlen(udev->program_result) == 0)
                                break;
-                       strfieldcpy(dev.name, temp3);
-                       dbg_parse("REPLACE name = %s, kernel_name = %s",
-                                       dev.name, dev.kernel_name);
+                       /* get part part of the result string */
+                       i = 0;
+                       if (attr != NULL)
+                               i = strtoul(attr, &rest, 10);
+                       if (i > 0) {
+                               foreach_strpart(udev->program_result, " \n\r", spos, slen) {
+                                       i--;
+                                       if (i == 0)
+                                               break;
+                               }
+                               if (i > 0) {
+                                       dbg("requested part of result string not found");
+                                       break;
+                               }
+                               if (rest[0] == '+')
+                                       strfieldcpy(temp2, spos);
+                               else
+                                       strfieldcpymax(temp2, spos, slen+1);
+                               strfieldcatmax(string, temp2, maxsize);
+                               dbg("substitute part of result string '%s'", temp2);
+                       } else {
+                               strfieldcatmax(string, udev->program_result, maxsize);
+                               dbg("substitute result string '%s'", udev->program_result);
+                       }
+                       break;
+               case 's':
+                       if (attr != NULL) {
+                               tmpattr = find_sysfs_attribute(class_dev, sysfs_device, attr);
+                               if (tmpattr == NULL) {
+                                       dbg("sysfa attribute '%s' not found", attr);
+                                       break;
+                               }
+                               strfieldcatmax(string, tmpattr->value, maxsize);
+                               dbg("substitute sysfs value '%s'", tmpattr->value);
+                       } else {
+                               dbg("missing attribute");
+                       }
+                       break;
+               case '%':
+                       strfieldcatmax(string, "%", maxsize);
+                       break;
+               default:
+                       dbg("unknown substitution type '%%%c'", c);
+                       break;
                }
-               if (strcasecmp(temp2, TYPE_CALLOUT) == 0) {
-                       /* number type */
-                       dev.type = CALLOUT;
+               /* truncate to specified length */
+               if (len > 0)
+                       pos[len] = '\0';
 
-                       /* PROGRAM="executable" */
-                       retval = get_value("PROGRAM", &temp, &temp3);
-                       if (retval)
-                               break;
-                       strfieldcpy(dev.exec_program, temp3);
+               strfieldcatmax(string, tail, maxsize);
+       }
+}
 
-                       /* BUS="bus" */
-                       temp2 = strsep(&temp, ",");
-                       retval = get_value("BUS", &temp, &temp3);
-                       if (retval)
-                               break;
-                       strfieldcpy(dev.bus, temp3);
+/* 
+ * Note, we can have multiple files for different busses in here due
+ * to the mess that USB has for its device tree...
+ */
+static struct bus_file {
+       char *bus;
+       char *file;
+} bus_files[] = {
+       { .bus = "scsi",        .file = "vendor" },
+       { .bus = "usb",         .file = "idVendor" },
+       { .bus = "usb",         .file = "iInterface" },
+       { .bus = "usb-serial",  .file = "detach_state" },
+       { .bus = "ide",         .file = "detach_state" },
+       { .bus = "pci",         .file = "vendor" },
+       {}
+};
+
+#define SECONDS_TO_WAIT_FOR_FILE       10
+static void wait_for_device_to_initialize(struct sysfs_device *sysfs_device)
+{
+       /* sleep until we see the file for this specific bus type show up this
+        * is needed because we can easily out-run the kernel in looking for
+        * these files before the paticular subsystem has created them in the
+        * sysfs tree properly.
+        *
+        * And people thought that the /sbin/hotplug event system was going to
+        * be slow, poo on you for arguing that before even testing it...
+        */
+       struct bus_file *b = &bus_files[0];
+       struct sysfs_attribute *tmpattr;
+       int found = 0;
+       int loop = SECONDS_TO_WAIT_FOR_FILE;
 
-                       /* ID="id" */
-                       temp2 = strsep(&temp, ",");
-                       retval = get_value("ID", &temp, &temp3);
-                       if (retval)
+       while (1) {
+               if (b->bus == NULL) {
+                       if (!found)
                                break;
-                       strfieldcpy(dev.id, temp3);
-
-                       /* NAME="new_name" */
-                       temp2 = strsep(&temp, ",");
-                       retval = get_value("NAME", &temp, &temp3);
-                       if (retval)
+                       /* sleep to give the kernel a chance to create the file */
+                       sleep(1);
+                       --loop;
+                       if (loop == 0)
                                break;
-                       strfieldcpy(dev.name, temp3);
-                       dbg_parse("CALLOUT name = %s, program = %s",
-                                       dev.name, dev.exec_program);
+                       b = &bus_files[0];
                }
-
-               retval = add_dev(&dev);
-               if (retval) {
-                       dbg("add_dev returned with error %d", retval);
-                       goto exit;
+               if (strcmp(sysfs_device->bus, b->bus) == 0) {
+                       found = 1;
+                       dbg("looking for file '%s' on bus '%s'", b->file, b->bus);
+                       tmpattr = sysfs_get_device_attr(sysfs_device, b->file);
+                       if (tmpattr) {
+                               /* found it! */
+                               goto exit;
+                       }
+                       dbg("can't find '%s' file", b->file);
                }
+               ++b;
        }
-       dbg_parse("%s:%d:%Zd: error parsing ``%s''", udev_config_filename,
-                 lineno, temp - line, temp);
+       if (!found)
+               dbg("did not find bus type '%s' on list of bus_id_files, "
+                   "contact greg@kroah.com", sysfs_device->bus);
 exit:
-       fclose(fd);
-       return retval;
-}      
-
+       return; /* here to prevent compiler warning... */
+}
 
-static int namedev_init_permissions(void)
+static void fix_kernel_name(struct udevice *udev)
 {
-       char line[255];
-       char *temp;
-       char *temp2;
-       FILE *fd;
-       int retval = 0;
-       struct config_device dev;
-
-       dbg("opening %s to read as permissions config", udev_config_permission_filename);
-       fd = fopen(udev_config_permission_filename, "r");
-       if (fd == NULL) {
-               dbg("Can't open %s", udev_config_permission_filename);
-               return -ENODEV;
-       }
-
-       /* loop through the whole file */
-       while (1) {
-               /* get a line */
-               temp = fgets(line, sizeof(line), fd);
-               if (temp == NULL)
-                       break;
-
-               dbg_parse("read %s", temp);
-
-               /* eat the whitespace at the beginning of the line */
-               while (isspace(*temp))
-                       ++temp;
-
-               /* no more line? */
-               if (*temp == 0x00)
-                       continue;
-
-               /* see if this is a comment */
-               if (*temp == COMMENT_CHARACTER)
-                       continue;
-
-               memset(&dev, 0x00, sizeof(dev));
-
-               /* parse the line */
-               temp2 = strsep(&temp, ":");
-               strncpy(dev.name, temp2, sizeof(dev.name));
-
-               temp2 = strsep(&temp, ":");
-               strncpy(dev.owner, temp2, sizeof(dev.owner));
-
-               temp2 = strsep(&temp, ":");
-               strncpy(dev.group, temp2, sizeof(dev.owner));
-
-               dev.mode = strtol(temp, NULL, 8);
-
-               dbg_parse("name = %s, owner = %s, group = %s, mode = %#o",
-                               dev.name, dev.owner, dev.group,
-                               dev.mode);
-               retval = add_dev(&dev);
-               if (retval) {
-                       dbg("add_dev returned with error %d", retval);
-                       goto exit;
-               }
+       char *temp = udev->kernel_name;
+
+       while (*temp != 0x00) {
+               /* Some block devices have a ! in their name, 
+                * we need to change that to / */
+               if (*temp == '!')
+                       *temp = '/';
+               ++temp;
        }
-
-exit:
-       fclose(fd);
-       return retval;
-}      
-
-static mode_t get_default_mode(struct sysfs_class_device *class_dev)
-{
-       /* just default everyone to rw for the world! */
-       return 0666;
 }
 
-
-static int exec_callout(struct config_device *dev, char *value, int len)
+static int execute_program(char *path, char *value, int len)
 {
        int retval;
-       int res;
+       int count;
        int status;
        int fds[2];
        pid_t pid;
-       int value_set = 0;
-       char buffer[256];
+       char *pos;
+       char arg[PROGRAM_SIZE];
+       char *argv[sizeof(arg) / 2];
+       int i;
+
+       i = 0;
+       if (strchr(path, ' ')) {
+               strfieldcpy(arg, path);
+               pos = arg;
+               while (pos != NULL) {
+                       if (pos[0] == '\'') {
+                               /* don't separate if in apostrophes */
+                               pos++;
+                               argv[i] = strsep(&pos, "\'");
+                               while (pos[0] == ' ')
+                                       pos++;
+               } else {
+                               argv[i] = strsep(&pos, " ");
+                       }
+                       dbg("arg[%i] '%s'", i, argv[i]);
+                       i++;
+               }
+       }
+       argv[i] =  NULL;
 
-       dbg("callout to %s\n", dev->exec_program);
        retval = pipe(fds);
        if (retval != 0) {
                dbg("pipe failed");
                return -1;
        }
-       pid = fork();
-       if (pid == -1) {
-               dbg("fork failed");
-               return -1;
-       }
 
-       if (pid == 0) {
-               /*
-                * child 
-                */
+       pid = fork();
+       switch(pid) {
+       case 0:
+               /* child */
                close(STDOUT_FILENO);
-               dup(fds[1]);    /* dup write side of pipe to STDOUT */
-               retval = execve(dev->exec_program, main_argv, main_envp);
-               if (retval != 0) {
-                       dbg("child execve failed");
-                       exit(1);
+
+               /* dup write side of pipe to STDOUT */
+               dup(fds[1]);
+               if (argv[0] !=  NULL) {
+                       dbg("execute '%s' with given arguments", argv[0]);
+                       retval = execv(argv[0], argv);
+               } else {
+                       dbg("execute '%s' with main argument", path);
+                       retval = execv(path, main_argv);
                }
-               return -1; /* avoid compiler warning */
-       } else {
-               /*
-                * Parent reads from fds[0].
-                */
+
+               info(FIELD_PROGRAM " execution of '%s' failed", path);
+               exit(1);
+       case -1:
+               dbg("fork failed");
+               return -1;
+       default:
+               /* parent reads from fds[0] */
                close(fds[1]);
                retval = 0;
+               i = 0;
                while (1) {
-                       res = read(fds[0], buffer, sizeof(buffer) - 1);
-                       if (res <= 0)
+                       count = read(fds[0], value + i, len - i-1);
+                       if (count <= 0)
                                break;
-                       buffer[res] = '\0';
-                       if (res > len) {
-                               dbg("callout len %d too short\n", len);
-                               retval = -1;
-                       }
-                       if (value_set) {
-                               dbg("callout value already set");
+
+                       i += count;
+                       if (i >= len-1) {
+                               dbg("result len %d too short", len);
                                retval = -1;
-                       } else {
-                               value_set = 1;
-                               strncpy(value, buffer, len);
+                               break;
                        }
                }
-               close(fds[0]);
-               res = wait(&status);
-               if (res < 0) {
-                       dbg("wait failed result %d", res);
+
+               if (count < 0) {
+                       dbg("read failed with '%s'", strerror(errno));
                        retval = -1;
                }
 
-#ifndef __KLIBC__
+               if (i > 0 && value[i] == '\n')
+                       i--;
+               value[i] = '\0';
+               dbg("result is '%s'", value);
+
+               close(fds[0]);
+               wait(&status);
+
                if (!WIFEXITED(status) || (WEXITSTATUS(status) != 0)) {
-                       dbg("callout program status 0x%x", status);
+                       dbg("exec program status 0x%x", status);
                        retval = -1;
                }
-#endif
        }
        return retval;
 }
 
-static int do_callout(struct sysfs_class_device *class_dev, struct udevice *udev)
+static struct sysfs_attribute *find_sysfs_attribute(struct sysfs_class_device *class_dev, struct sysfs_device *sysfs_device, char *attr)
 {
-       struct config_device *dev;
-       struct list_head *tmp;
-       char value[ID_SIZE];
+       struct sysfs_attribute *tmpattr = NULL;
+       char *c;
 
-       list_for_each(tmp, &config_device_list) {
-               dev = list_entry(tmp, struct config_device, node);
-               if (dev->type != CALLOUT)
-                       continue;
+       dbg("look for device attribute '%s'", attr);
+       /* try to find the attribute in the class device directory */
+       tmpattr = sysfs_get_classdev_attr(class_dev, attr);
+       if (tmpattr)
+               goto attr_found;
 
-               if (exec_callout(dev, value, sizeof(value)))
-                       continue;
-               if (strncmp(value, dev->id, sizeof(value)) != 0)
-                       continue;
-               strfieldcpy(udev->name, dev->name);
-               if (dev->mode != 0) {
-                       udev->mode = dev->mode;
-                       strfieldcpy(udev->owner, dev->owner);
-                       strfieldcpy(udev->group, dev->group);
-               }
-               dbg_parse("device callout '%s' becomes '%s' - owner = %s, group = %s, mode = %#o",
-                       dev->id, udev->name, 
-                       dev->owner, dev->group, dev->mode);
-               return 0;
+       /* look in the class device directory if present */
+       if (sysfs_device) {
+               tmpattr = sysfs_get_device_attr(sysfs_device, attr);
+               if (tmpattr)
+                       goto attr_found;
        }
-       return -ENODEV;
+
+       return NULL;
+
+attr_found:
+       c = strchr(tmpattr->value, '\n');
+       if (c != NULL)
+               c[0] = '\0';
+
+       dbg("found attribute '%s'", tmpattr->path);
+       return tmpattr;
 }
 
-static int do_label(struct sysfs_class_device *class_dev, struct udevice *udev, struct sysfs_device *sysfs_device)
+static int compare_sysfs_attribute(struct sysfs_class_device *class_dev, struct sysfs_device *sysfs_device, struct sysfs_pair *pair)
 {
-       struct sysfs_attribute *tmpattr = NULL;
-       struct config_device *dev;
-       struct list_head *tmp;
+       struct sysfs_attribute *tmpattr;
+       int i;
+       int len;
 
-       list_for_each(tmp, &config_device_list) {
-               dev = list_entry(tmp, struct config_device, node);
-               if (dev->type != LABEL)
-                       continue;
+       if ((pair == NULL) || (pair->file[0] == '\0') || (pair->value == '\0'))
+               return -ENODEV;
 
-               dbg_parse("LABEL: match file '%s' with value '%s'",
-                               dev->sysfs_file, dev->sysfs_value);
-               /* try to find the attribute in the class device directory */
-               tmpattr = sysfs_get_classdev_attr(class_dev, dev->sysfs_file);
-               if (tmpattr)
-                       goto label_found;
+       tmpattr = find_sysfs_attribute(class_dev, sysfs_device, pair->file);
+       if (tmpattr == NULL)
+               return -ENODEV;
 
-               /* look in the class device directory if present */
-               if (sysfs_device) {
-                       tmpattr = sysfs_get_device_attr(sysfs_device, dev->sysfs_file);
-                       if (tmpattr)
-                               goto label_found;
+       /* strip trailing whitespace of value, if not asked to match for it */
+       if (! isspace(pair->value[strlen(pair->value)-1])) {
+               i = len = strlen(tmpattr->value);
+               while (i > 0 &&  isspace(tmpattr->value[i-1]))
+                       i--;
+               if (i < len) {
+                       tmpattr->value[i] = '\0';
+                       dbg("remove %i trailing whitespace chars from '%s'",
+                           len - i, tmpattr->value);
                }
+       }
 
-               continue;
+       dbg("compare attribute '%s' value '%s' with '%s'",
+                 pair->file, tmpattr->value, pair->value);
+       if (strcmp_pattern(pair->value, tmpattr->value) != 0)
+               return -ENODEV;
 
-label_found:
-               tmpattr->value[strlen(tmpattr->value)-1] = 0x00;
-               dbg_parse("file '%s' found with value '%s' compare with '%s'", dev->sysfs_file, tmpattr->value, dev->sysfs_value);
-               if (strcmp(dev->sysfs_value, tmpattr->value) != 0)
-                       continue;
+       dbg("found matching attribute '%s' with value '%s'",
+           pair->file, pair->value);
+       return 0;
+}
 
-               strfieldcpy(udev->name, dev->name);
-               if (dev->mode != 0) {
-                       udev->mode = dev->mode;
-                       strfieldcpy(udev->owner, dev->owner);
-                       strfieldcpy(udev->group, dev->group);
-               }
-               dbg_parse("file '%s' with value '%s' becomes '%s' - owner = %s, group = %s, mode = %#o",
-                       dev->sysfs_file, dev->sysfs_value, udev->name, 
-                       dev->owner, dev->group, dev->mode);
+static int match_sysfs_pairs(struct config_device *dev, struct sysfs_class_device *class_dev, struct sysfs_device *sysfs_device)
+{
+       struct sysfs_pair *pair;
+       int i;
 
-               return 0;
+       for (i = 0; i < MAX_SYSFS_PAIRS; ++i) {
+               pair = &dev->sysfs_pair[i];
+               if ((pair->file[0] == '\0') || (pair->value[0] == '\0'))
+                       break;
+               if (compare_sysfs_attribute(class_dev, sysfs_device, pair) != 0) {
+                       dbg("sysfs attribute doesn't match");
+                       return -ENODEV;
+               }
        }
-       return -ENODEV;
+
+       return 0;
 }
 
-static int do_number(struct sysfs_class_device *class_dev, struct udevice *udev, struct sysfs_device *sysfs_device)
+static int match_id(struct config_device *dev, struct sysfs_class_device *class_dev, struct sysfs_device *sysfs_device)
 {
-       struct config_device *dev;
-       struct list_head *tmp;
        char path[SYSFS_PATH_MAX];
-       int found;
        char *temp = NULL;
 
-       /* we have to have a sysfs device for NUMBER to work */
+       /* we have to have a sysfs device for ID to work */
        if (!sysfs_device)
                return -ENODEV;
 
-       list_for_each(tmp, &config_device_list) {
-               dev = list_entry(tmp, struct config_device, node);
-               if (dev->type != NUMBER)
-                       continue;
-
-               found = 0;
-               strfieldcpy(path, sysfs_device->path);
-               temp = strrchr(path, '/');
-               dbg_parse("NUMBER path = '%s'", path);
-               dbg_parse("NUMBER temp = '%s' id = '%s'", temp, dev->id);
-               if (strstr(temp, dev->id) != NULL) {
-                       found = 1;
-               } else {
-                       *temp = 0x00;
-                       temp = strrchr(path, '/');
-                       dbg_parse("NUMBER temp = '%s' id = '%s'", temp, dev->id);
-                       if (strstr(temp, dev->id) != NULL)
-                               found = 1;
-               }
-               if (!found)
-                       continue;
-               strfieldcpy(udev->name, dev->name);
-               if (dev->mode != 0) {
-                       udev->mode = dev->mode;
-                       strfieldcpy(udev->owner, dev->owner);
-                       strfieldcpy(udev->group, dev->group);
-               }
-               dbg_parse("device id '%s' becomes '%s' - owner = %s, group = %s, mode = %#o",
-                       dev->id, udev->name, 
-                       dev->owner, dev->group, dev->mode);
+       strfieldcpy(path, sysfs_device->path);
+       temp = strrchr(path, '/');
+       temp++;
+       dbg("search '%s' in '%s', path='%s'", dev->id, temp, path);
+       if (strcmp_pattern(dev->id, temp) != 0)
+               return -ENODEV;
+       else
                return 0;
-       }
-       return -ENODEV;
 }
 
-
-static int do_topology(struct sysfs_class_device *class_dev, struct udevice *udev, struct sysfs_device *sysfs_device)
+static int match_place(struct config_device *dev, struct sysfs_class_device *class_dev, struct sysfs_device *sysfs_device)
 {
-       struct config_device *dev;
-       struct list_head *tmp;
        char path[SYSFS_PATH_MAX];
        int found;
        char *temp = NULL;
 
-       /* we have to have a sysfs device for TOPOLOGY to work */
+       /* we have to have a sysfs device for PLACE to work */
        if (!sysfs_device)
                return -ENODEV;
 
-       list_for_each(tmp, &config_device_list) {
-               dev = list_entry(tmp, struct config_device, node);
-               if (dev->type != TOPOLOGY)
-                       continue;
-
-               found = 0;
-               strfieldcpy(path, sysfs_device->path);
+       found = 0;
+       strfieldcpy(path, sysfs_device->path);
+       temp = strrchr(path, '/');
+       dbg("search '%s' in '%s', path='%s'", dev->place, temp, path);
+       if (strstr(temp, dev->place) != NULL) {
+               found = 1;
+       } else {
+               *temp = 0x00;
                temp = strrchr(path, '/');
-               dbg_parse("TOPOLOGY path = '%s'", path);
-               dbg_parse("TOPOLOGY temp = '%s' place = '%s'", temp, dev->place);
-               if (strstr(temp, dev->place) != NULL) {
+               dbg("search '%s' in '%s', path='%s'", dev->place, temp, path);
+               if (strstr(temp, dev->place) != NULL)
                        found = 1;
-               } else {
-                       *temp = 0x00;
-                       temp = strrchr(path, '/');
-                       dbg_parse("TOPOLOGY temp = '%s' place = '%s'", temp, dev->place);
-                       if (strstr(temp, dev->place) != NULL)
-                               found = 1;
-               }
-               if (!found)
-                       continue;
+       }
+       if (!found) {
+               dbg("place doesn't match");
+               return -ENODEV;
+       }
 
-               strfieldcpy(udev->name, dev->name);
-               if (dev->mode != 0) {
-                       udev->mode = dev->mode;
-                       strfieldcpy(udev->owner, dev->owner);
-                       strfieldcpy(udev->group, dev->group);
+       return 0;
+}
+
+static struct sysfs_device *get_sysfs_device(struct sysfs_class_device *class_dev)
+{
+       struct sysfs_device *sysfs_device;
+       struct sysfs_class_device *class_dev_parent;
+       struct timespec tspec;
+       int loop;
+
+       /* Figure out where the device symlink is at.  For char devices this will
+        * always be in the class_dev->path.  But for block devices, it's different.
+        * The main block device will have the device symlink in it's path, but
+        * all partitions have the symlink in its parent directory.
+        * But we need to watch out for block devices that do not have parents, yet
+        * look like a partition (fd0, loop0, etc.)  They all do not have a device
+        * symlink yet.  We do sit and spin on waiting for them right now, we should
+        * possibly have a whitelist for these devices here...
+        */
+       class_dev_parent = sysfs_get_classdev_parent(class_dev);
+       if (class_dev_parent) 
+               dbg("Really a partition");
+
+       tspec.tv_sec = 0;
+       tspec.tv_nsec = 10000000;  /* sleep 10 millisec */
+       loop = 10;
+       while (loop--) {
+               if (udev_sleep)
+                       nanosleep(&tspec, NULL);
+               if (class_dev_parent)
+                       sysfs_device = sysfs_get_classdev_device(class_dev_parent);
+               else
+                       sysfs_device = sysfs_get_classdev_device(class_dev);
+
+               if (sysfs_device != NULL)
+                       goto device_found;
+       }
+       dbg("timed out waiting for device symlink, continuing on anyway...");
+       
+device_found:
+        /* We have another issue with just the wait above - the sysfs part of
+        * the kernel may not be quick enough to have created the link to the
+        * device under the "bus" subsystem. Due to this, the sysfs_device->bus
+        * will not contain the actual bus name :(
+        *
+        * Libsysfs now provides a new API sysfs_get_device_bus(), so use it
+        * if needed
+        */
+        if (sysfs_device) {
+               if (sysfs_device->bus[0] != '\0')
+                       goto bus_found;
+
+               loop = 10;
+               tspec.tv_nsec = 10000000;
+               while (loop--) {
+                       if (udev_sleep)
+                               nanosleep(&tspec, NULL);
+                       sysfs_get_device_bus(sysfs_device);
+                       
+                       if (sysfs_device->bus[0] != '\0')
+                               goto bus_found;
                }
-               dbg_parse("device at '%s' becomes '%s' - owner = %s, group = %s, mode = %#o",
-                       dev->place, udev->name, 
-                       dev->owner, dev->group, dev->mode);
-               
-               return 0;
+               dbg("timed out waiting to find the device bus, continuing on anyway");
+               goto exit;
+bus_found:
+               dbg("device %s is registered with bus '%s'",
+                               sysfs_device->name, sysfs_device->bus);
        }
-       return -ENODEV;
+exit:
+       return sysfs_device;
 }
 
-static int do_replace(struct sysfs_class_device *class_dev, struct udevice *udev)
+static int match_rule(struct config_device *dev, struct sysfs_class_device *class_dev, struct udevice *udev, struct sysfs_device *sysfs_device)
 {
-       struct config_device *dev;
-       struct list_head *tmp;
+       while (1) {
+               /* check for matching bus value */
+               if (dev->bus[0] != '\0') {
+                       if (sysfs_device == NULL) {
+                               dbg("device has no bus");
+                               goto try_parent;
+                       }
+                       dbg("check for " FIELD_BUS " dev->bus='%s' sysfs_device->bus='%s'", dev->bus, sysfs_device->bus);
+                       if (strcmp_pattern(dev->bus, sysfs_device->bus) != 0) {
+                               dbg(FIELD_BUS " is not matching");
+                               goto try_parent;
+                       } else {
+                               dbg(FIELD_BUS " matches");
+                       }
+               }
 
-       list_for_each(tmp, &config_device_list) {
-               dev = list_entry(tmp, struct config_device, node);
-               if (dev->type != REPLACE)
-                       continue;
+               /* check for matching kernel name*/
+               if (dev->kernel[0] != '\0') {
+                       dbg("check for " FIELD_KERNEL " dev->kernel='%s' class_dev->name='%s'", dev->kernel, class_dev->name);
+                       if (strcmp_pattern(dev->kernel, class_dev->name) != 0) {
+                               dbg(FIELD_KERNEL " is not matching");
+                               goto try_parent;
+                       } else {
+                               dbg(FIELD_KERNEL " matches");
+                       }
+               }
 
-               dbg_parse("REPLACE: replace name '%s' with '%s'",
-                         dev->kernel_name, dev->name);
-               if (strcmp(dev->kernel_name, class_dev->name) != 0)
-                       continue;
+               /* check for matching bus id */
+               if (dev->id[0] != '\0') {
+                       dbg("check " FIELD_ID);
+                       if (match_id(dev, class_dev, sysfs_device) != 0) {
+                               dbg(FIELD_ID " is not matching");
+                               goto try_parent;
+                       } else {
+                               dbg(FIELD_ID " matches");
+                       }
+               }
 
-               strfieldcpy(udev->name, dev->name);
-               if (dev->mode != 0) {
-                       udev->mode = dev->mode;
-                       strfieldcpy(udev->owner, dev->owner);
-                       strfieldcpy(udev->group, dev->group);
+               /* check for matching place of device */
+               if (dev->place[0] != '\0') {
+                       dbg("check " FIELD_PLACE);
+                       if (match_place(dev, class_dev, sysfs_device) != 0) {
+                               dbg(FIELD_PLACE " is not matching");
+                               goto try_parent;
+                       } else {
+                               dbg(FIELD_PLACE " matches");
+                       }
                }
-               dbg_parse("'%s' becomes '%s' - owner = %s, group = %s, mode = %#o",
-                       dev->kernel_name, udev->name, 
-                       dev->owner, dev->group, dev->mode);
-               
-               return 0;
-       }
-       return -ENODEV;
-}
 
-static void do_kernelname(struct sysfs_class_device *class_dev, struct udevice *udev)
-{
-       struct config_device *dev;
-       struct list_head *tmp;
-       int len;
+               /* check for matching sysfs pairs */
+               if (dev->sysfs_pair[0].file[0] != '\0') {
+                       dbg("check " FIELD_SYSFS " pairs");
+                       if (match_sysfs_pairs(dev, class_dev, sysfs_device) != 0) {
+                               dbg(FIELD_SYSFS " is not matching");
+                               goto try_parent;
+                       } else {
+                               dbg(FIELD_SYSFS " matches");
+                       }
+               }
 
-       strfieldcpy(udev->name, class_dev->name);
-       list_for_each(tmp, &config_device_list) {
-               dev = list_entry(tmp, struct config_device, node);
-               len = strlen(dev->name);
-               if (dev->name[len-1] == '*') {
-                       len--;
-                       if (strncmp(dev->name, class_dev->name, len))
-                               continue;
-               } else {
-                       if (strcmp(dev->name, class_dev->name))
-                               continue;
+               /* execute external program */
+               if (dev->program[0] != '\0') {
+                       dbg("check " FIELD_PROGRAM);
+                       apply_format(udev, dev->program, sizeof(dev->program),
+                                    class_dev, sysfs_device);
+                       if (execute_program(dev->program, udev->program_result, NAME_SIZE) != 0) {
+                               dbg(FIELD_PROGRAM " returned nonzero");
+                               goto try_parent;
+                       } else {
+                               dbg(FIELD_PROGRAM " returned successful");
+                       }
                }
-               if (dev->mode != 0) {
-                       dbg_parse("found permissions from config for '%s'", class_dev->name);
-                       udev->mode = dev->mode;
-                       strfieldcpy(udev->owner, dev->owner);
-                       strfieldcpy(udev->group, dev->group);
+
+               /* check for matching result of external program */
+               if (dev->result[0] != '\0') {
+                       dbg("check for " FIELD_RESULT
+                           " dev->result='%s', udev->program_result='%s'",
+                           dev->result, udev->program_result);
+                       if (strcmp_pattern(dev->result, udev->program_result) != 0) {
+                               dbg(FIELD_RESULT " is not matching");
+                               goto try_parent;
+                       } else {
+                               dbg(FIELD_RESULT " matches");
+                       }
                }
+
+               /* Yeah, we matched! */
+               return 0;
+
+try_parent:
+               dbg("try parent sysfs device");
+               sysfs_device = sysfs_get_device_parent(sysfs_device);
+               if (sysfs_device == NULL)
+                       return -ENODEV;
+               dbg("sysfs_device->path='%s'", sysfs_device->path);
+               dbg("sysfs_device->bus_id='%s'", sysfs_device->bus_id);
+               dbg("sysfs_device->bus='%s'", sysfs_device->bus);
        }
+
 }
 
-static int get_attr(struct sysfs_class_device *class_dev, struct udevice *udev)
+int namedev_name_device(struct sysfs_class_device *class_dev, struct udevice *udev)
 {
        struct sysfs_device *sysfs_device = NULL;
-       struct sysfs_class_device *class_dev_parent = NULL;
-       int retval = 0;
-       char *temp = NULL;
+       struct config_device *dev;
+       struct perm_device *perm;
+       char *pos;
 
        udev->mode = 0;
 
-       /* find the sysfs_device for this class device */
-       /* Wouldn't it really be nice if libsysfs could do this for us? */
-       if (class_dev->sysdevice) {
-               sysfs_device = class_dev->sysdevice;
-       } else {
-               /* bah, let's go backwards up a level to see if the device is there,
-                * as block partitions don't point to the physical device.  Need to fix that
-                * up in the kernel...
-                */
-               if (strstr(class_dev->path, "block")) {
-                       dbg_parse("looking at block device...");
-                       if (isdigit(class_dev->path[strlen(class_dev->path)-1])) {
-                               char path[SYSFS_PATH_MAX];
-
-                               dbg_parse("really is a partition...");
-                               strfieldcpy(path, class_dev->path);
-                               temp = strrchr(path, '/');
-                               *temp = 0x00;
-                               dbg_parse("looking for a class device at '%s'", path);
-                               class_dev_parent = sysfs_open_class_device(path);
-                               if (class_dev_parent == NULL) {
-                                       dbg("sysfs_open_class_device at '%s' failed", path);
-                               } else {
-                                       dbg_parse("class_dev_parent->name = %s", class_dev_parent->name);
-                                       if (class_dev_parent->sysdevice)
-                                               sysfs_device = class_dev_parent->sysdevice;
-                               }
-                       }
-               }
-       }
-               
+       /* find the sysfs_device associated with this class device */
+       sysfs_device = get_sysfs_device(class_dev);
        if (sysfs_device) {
-               dbg_parse("sysfs_device->path = '%s'", sysfs_device->path);
-               dbg_parse("sysfs_device->bus_id = '%s'", sysfs_device->bus_id);
-       } else {
-               dbg_parse("class_dev->name = '%s'", class_dev->name);
+               dbg("sysfs_device->path='%s'", sysfs_device->path);
+               dbg("sysfs_device->bus_id='%s'", sysfs_device->bus_id);
+               dbg("sysfs_device->bus='%s'", sysfs_device->bus);
+               strfieldcpy(udev->bus_id, sysfs_device->bus_id);
+               wait_for_device_to_initialize(sysfs_device);
        }
+       dbg("class_dev->name = '%s'", class_dev->name);
+
+       strfieldcpy(udev->kernel_name, class_dev->name);
+       fix_kernel_name(udev);
+       dbg("udev->kernel_name = '%s'", udev->kernel_name);
+
+       /* get kernel number */
+       pos = class_dev->name + strlen(class_dev->name);
+       while (isdigit(*(pos-1)))
+               pos--;
+       strfieldcpy(udev->kernel_number, pos);
+       dbg("kernel_number='%s'", udev->kernel_number);
+
+       /* look for a matching rule to apply */
+       list_for_each_entry(dev, &config_device_list, node) {
+               dbg("process rule");
+               if (match_rule(dev, class_dev, udev, sysfs_device) == 0) {
+                       if (dev->name[0] == '\0' && dev->symlink[0] == '\0') {
+                               info("configured rule in '%s' at line %i applied, '%s' is ignored",
+                                    dev->config_file, dev->config_line, udev->kernel_name);
+                               return -1;
+                       }
 
-       /* rules are looked at in priority order */
-       retval = do_callout(class_dev, udev);
-       if (retval == 0)
-               goto found;
-
-       retval = do_label(class_dev, udev, sysfs_device);
-       if (retval == 0)
-               goto found;
-
-       retval = do_number(class_dev, udev, sysfs_device);
-       if (retval == 0)
-               goto found;
+                       if (dev->symlink[0] != '\0') {
+                               char temp[NAME_SIZE];
 
-       retval = do_topology(class_dev, udev, sysfs_device);
-       if (retval == 0)
-               goto found;
+                               info("configured rule in '%s' at line %i applied, added symlink '%s'",
+                                    dev->config_file, dev->config_line, dev->symlink);
+                               strfieldcpy(temp, dev->symlink);
+                               apply_format(udev, temp, sizeof(temp), class_dev, sysfs_device);
+                               if (udev->symlink[0] != '\0')
+                                       strfieldcat(udev->symlink, " ");
+                               strfieldcat(udev->symlink, temp);
+                       }
 
-       retval = do_replace(class_dev, udev);
-       if (retval == 0)
-               goto found;
+                       if (dev->name[0] != '\0') {
+                               info("configured rule in '%s' at line %i applied, '%s' becomes '%s'",
+                                    dev->config_file, dev->config_line, udev->kernel_name, dev->name);
+                               strfieldcpy(udev->name, dev->name);
+                               goto found;
+                       }
+               }
+       }
 
-       do_kernelname(class_dev, udev);
+       /* no rule was found so we use the kernel name */
+       strfieldcpy(udev->name, udev->kernel_name);
        goto done;
 
 found:
-       /* substitute placeholder in NAME  */
-       while (1) {
-               char *pos = strchr(udev->name, '%');
-               char *dig;
-               char name[NAME_SIZE];
-               if (pos) {
-                       strfieldcpy(name, pos+2);
-                       *pos = 0x00;
-                       switch (pos[1]) {
-                       case 'b':
-                               if (!sysfs_device)
-                                       break;
-                               strcat(udev->name, sysfs_device->bus_id);
-                               dbg("bus_id appended: %s", 
-                                               sysfs_device->bus_id);
-                               break;
-                       case 'n':
-                               dig = class_dev->name + strlen(class_dev->name);
-                               while (isdigit(*(dig-1)))
-                                       dig--;
-                               strcat(udev->name, dig);
-                               dbg("kernel number appended: %s", dig);
-                               break;
-                       case 'm':
-                               sprintf(pos, "%u", udev->minor);
-                               dbg("minor number appended: %u", udev->minor);
-                               break;
-                       case 'M':
-                               sprintf(pos, "%u", udev->major);
-                               dbg("major number appended: %u", udev->major);
-                               break;
-                       default:
-                               dbg("unknown substitution type: %%%c", pos[1]);
-                               break;
-                       }
-                       strcat(udev->name, name);
-               } else
-                       break;
-       }
+       apply_format(udev, udev->name, sizeof(udev->name), class_dev, sysfs_device);
+       udev->partitions = dev->partitions;
+       strfieldcpy(udev->config_file, dev->config_file);
+       udev->config_line = dev->config_line;
+
+       /* get permissions given in rule */
+       set_empty_perms(udev, dev->mode,
+                             dev->owner,
+                             dev->group);
 
 done:
-       /* mode was never set above */
-       if (!udev->mode) {
-               udev->mode = get_default_mode(class_dev);
-               udev->owner[0] = 0x00;
-               udev->group[0] = 0x00;
+       /* get permissions given in config file or set defaults */
+       perm = find_perm(udev->name);
+       if (perm != NULL) {
+               set_empty_perms(udev, perm->mode,
+                                     perm->owner,
+                                     perm->group);
+       } else {
+               set_empty_perms(udev, get_default_mode(),
+                                     get_default_owner(),
+                                     get_default_group());
        }
 
-       if (class_dev_parent)
-               sysfs_close_class_device(class_dev_parent);
+       dbg("name, '%s' is going to have owner='%s', group='%s', mode = %#o",
+           udev->name, udev->owner, udev->group, udev->mode);
 
-       return 0;
-}
+       /* store time of action */
+       udev->config_time = time(NULL);
 
-int namedev_name_device(struct sysfs_class_device *class_dev, struct udevice *dev)
-{
-       int retval;
-
-       retval = get_attr(class_dev, dev);
-       if (retval)
-               dbg("get_attr failed");
-
-       return retval;
+       return 0;
 }
 
 int namedev_init(void)
 {
        int retval;
-       
-       retval = namedev_init_config();
+
+       retval = namedev_init_rules();
        if (retval)
                return retval;
 
@@ -925,8 +885,7 @@ int namedev_init(void)
        if (retval)
                return retval;
 
-       dump_dev_list();
+       dump_config_dev_list();
+       dump_perm_dev_list();
        return retval;
 }
-
-