chiark / gitweb /
[PATCH] pattern match for label method
[elogind.git] / namedev.c
index 6444dd0feb957377cf3bd762a09a46c637da5a59..1faa253c1e9b8685da16c5413d585b202383c8b0 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 "udev_version.h"
 #include "namedev.h"
 #include "libsysfs/libsysfs.h"
+#include "klibc_fixups.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);
+LIST_HEAD(config_device_list);
+LIST_HEAD(perm_device_list);
 
-static void dump_dev(struct config_device *dev)
+/* compare string with pattern (supports * ? [0-9] [!A-Z]) */
+static int strcmp_pattern(const char *p, const char *s)
 {
-       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);
+       if (*s == '\0') {
+               while (*p == '*')
+                       p++;
+               return (*p != '\0');
+       }
+       switch (*p) {
+       case '[':
+               {
+                       int not = 0;
+                       p++;
+                       if (*p == '!') {
+                               not = 1;
+                               p++;
+                       }
+                       while (*p && (*p != ']')) {
+                               int match = 0;
+                               if (p[1] == '-') {
+                                       if ((*s >= *p) && (*s <= p[2]))
+                                               match = 1;
+                                       p += 3;
+                               } else {
+                                       match = (*p == *s);
+                                       p++;
+                               }
+                               if (match ^ not) {
+                                       while (*p && (*p != ']'))
+                                               p++;
+                                       return strcmp_pattern(p+1, s+1);
+                               }
+                       }
+               }
                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);
+       case '*':
+               if (strcmp_pattern(p, s+1))
+                       return strcmp_pattern(p+1, s);
+               return 0;
+       case '\0':
+               if (*s == '\0') {
+                       return 0;
+               }
                break;
        default:
-               dbg_parse("Unknown type of device!");
+               if ((*p == *s) || (*p == '?'))
+                       return strcmp_pattern(p+1, s+1);
+               break;
        }
+       return 1;
 }
 
 #define copy_var(a, b, var)            \
@@ -100,366 +101,156 @@ static void dump_dev(struct config_device *dev)
        if (strlen(b->var))             \
                strcpy(a->var, b->var);
 
-static int add_dev(struct config_device *new_dev)
+int add_config_dev(struct config_device *new_dev)
 {
        struct list_head *tmp;
        struct config_device *tmp_dev;
 
-       /* loop through the whole list of devices to see if we already have
-        * this one... */
+       /* 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);
-               if (strcmp(dev->name, new_dev->name) == 0) {
-                       /* 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);
-                       return 0;
-               }
+               if (strcmp_pattern(new_dev->name, dev->name))
+                       continue;
+               if (strncmp(dev->bus, new_dev->bus, sizeof(dev->name)))
+                       continue;
+               copy_var(dev, new_dev, type);
+               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, exec_program);
+               return 0;
        }
 
-       /* not found, lets create a new structure, and add it to the list */
+       /* not found, add new structure to the device 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);
+       list_add_tail(&tmp_dev->node, &config_device_list);
+       //dump_config_dev(tmp_dev);
        return 0;
 }
 
-static void dump_dev_list(void)
+int add_perm_dev(struct perm_device *new_dev)
 {
        struct list_head *tmp;
+       struct perm_device *tmp_dev;
 
-       list_for_each(tmp, &config_device_list) {
-               struct config_device *dev = list_entry(tmp, struct config_device, node);
-               dump_dev(dev);
-       }
-}
-
-static int get_value(const char *left, char **orig_string, char **ret_string)
-{
-       char *temp;
-       char *string = *orig_string;
-
-       /* eat any whitespace */
-       while (isspace(*string))
-               ++string;
-
-       /* split based on '=' */
-       temp = strsep(&string, "=");
-       if (strcasecmp(temp, left) == 0) {
-               /* got it, now strip off the '"' */
-               while (isspace(*string))
-                       ++string;
-               if (*string == '"')
-                       ++string;
-               temp = strsep(&string, "\"");
-               *ret_string = temp;
-               *orig_string = string;
+       /* update the values if we already have the device */
+       list_for_each(tmp, &perm_device_list) {
+               struct perm_device *dev = list_entry(tmp, struct perm_device, node);
+               if (strcmp_pattern(new_dev->name, dev->name))
+                       continue;
+               copy_var(dev, new_dev, mode);
+               copy_string(dev, new_dev, owner);
+               copy_string(dev, new_dev, group);
                return 0;
        }
-       return -ENODEV;
-}
-       
-static int get_pair(char **orig_string, char **left, char **right)
-{
-       char *temp;
-       char *string = *orig_string;
-
-       /* eat any whitespace */
-       while (isspace(*string))
-               ++string;
-
-       /* split based on '=' */
-       temp = strsep(&string, "=");
-       *left = temp;
-
-       /* take the right side and strip off the '"' */
-       while (isspace(*string))
-               ++string;
-       if (*string == '"')
-               ++string;
-       temp = strsep(&string, "\"");
-       *right = temp;
-       *orig_string = string;
-       
+
+       /* not found, add new structure to the perm list */
+       tmp_dev = malloc(sizeof(*tmp_dev));
+       if (!tmp_dev)
+               return -ENOMEM;
+       memcpy(tmp_dev, new_dev, sizeof(*tmp_dev));
+       list_add_tail(&tmp_dev->node, &perm_device_list);
+       //dump_perm_dev(tmp_dev);
        return 0;
 }
 
-static int namedev_init_config(void)
+static struct perm_device *find_perm(char *name)
 {
-       char line[255];
-       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;
-       }
-
-       /* 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;
+       struct list_head *tmp;
+       struct perm_device *perm = NULL;
 
-               /* see if this is a comment */
-               if (*temp == COMMENT_CHARACTER)
+       list_for_each(tmp, &perm_device_list) {
+               perm = list_entry(tmp, struct perm_device, node);
+               if (strcmp_pattern(perm->name, name))
                        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)
-                               continue;
-                       strcpy(dev.bus, temp3);
-
-                       /* file="value" */
-                       temp2 = strsep(&temp, ",");
-                       retval = get_pair(&temp, &temp2, &temp3);
-                       if (retval)
-                               continue;
-                       strcpy(dev.sysfs_file, temp2);
-                       strcpy(dev.sysfs_value, temp3);
-
-                       /* NAME="new_name" */
-                       temp2 = strsep(&temp, ",");
-                       retval = get_value("NAME", &temp, &temp3);
-                       if (retval)
-                               continue;
-                       strcpy(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);
-               }
-
-               if (strcasecmp(temp2, TYPE_NUMBER) == 0) {
-                       /* number type */
-                       dev.type = NUMBER;
-
-                       /* BUS="bus" */
-                       retval = get_value("BUS", &temp, &temp3);
-                       if (retval)
-                               continue;
-                       strcpy(dev.bus, temp3);
-
-                       /* ID="id" */
-                       temp2 = strsep(&temp, ",");
-                       retval = get_value("id", &temp, &temp3);
-                       if (retval)
-                               continue;
-                       strcpy(dev.id, temp3);
-
-                       /* NAME="new_name" */
-                       temp2 = strsep(&temp, ",");
-                       retval = get_value("NAME", &temp, &temp3);
-                       if (retval)
-                               continue;
-                       strcpy(dev.name, temp3);
-
-                       dbg_parse("NUMBER name = '%s', bus = '%s', id = '%s'",
-                                       dev.name, dev.bus, dev.id);
-               }
-
-               if (strcasecmp(temp2, TYPE_TOPOLOGY) == 0) {
-                       /* number type */
-                       dev.type = TOPOLOGY;
-
-                       /* BUS="bus" */
-                       retval = get_value("BUS", &temp, &temp3);
-                       if (retval)
-                               continue;
-                       strcpy(dev.bus, temp3);
-
-                       /* PLACE="place" */
-                       temp2 = strsep(&temp, ",");
-                       retval = get_value("place", &temp, &temp3);
-                       if (retval)
-                               continue;
-                       strcpy(dev.place, temp3);
-
-                       /* NAME="new_name" */
-                       temp2 = strsep(&temp, ",");
-                       retval = get_value("NAME", &temp, &temp3);
-                       if (retval)
-                               continue;
-                       strcpy(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)
-                               continue;
-                       strcpy(dev.kernel_name, temp3);
-
-                       /* NAME="new_name" */
-                       temp2 = strsep(&temp, ",");
-                       retval = get_value("NAME", &temp, &temp3);
-                       if (retval)
-                               continue;
-                       strcpy(dev.name, temp3);
-                       dbg_parse("REPLACE name = %s, kernel_name = %s",
-                                       dev.name, dev.kernel_name);
-               }
-               if (strcasecmp(temp2, TYPE_CALLOUT) == 0) {
-                       /* number type */
-                       dev.type = CALLOUT;
-
-                       /* PROGRAM="executable" */
-                       retval = get_value("PROGRAM", &temp, &temp3);
-                       if (retval)
-                               continue;
-                       strcpy(dev.exec_program, temp3);
-
-                       /* BUS="bus" */
-                       temp2 = strsep(&temp, ",");
-                       retval = get_value("BUS", &temp, &temp3);
-                       if (retval)
-                               continue;
-                       strcpy(dev.bus, temp3);
-
-                       /* ID="id" */
-                       temp2 = strsep(&temp, ",");
-                       retval = get_value("ID", &temp, &temp3);
-                       if (retval)
-                               continue;
-                       strcpy(dev.id, temp3);
-
-                       /* NAME="new_name" */
-                       temp2 = strsep(&temp, ",");
-                       retval = get_value("NAME", &temp, &temp3);
-                       if (retval)
-                               continue;
-                       strcpy(dev.name, temp3);
-                       dbg_parse("CALLOUT name = %s, program = %s",
-                                       dev.name, dev.exec_program);
-               }
-
-               retval = add_dev(&dev);
-               if (retval) {
-                       dbg("add_dev returned with error %d", retval);
-                       goto exit;
-               }
+               return perm;
        }
+       return NULL;
+}
 
-exit:
-       fclose(fd);
-       return retval;
-}      
-
-
-static int namedev_init_permissions(void)
+static mode_t get_default_mode(struct sysfs_class_device *class_dev)
 {
-       char line[255];
-       char *temp;
-       char *temp2;
-       FILE *fd;
-       int retval = 0;
-       struct config_device dev;
+       mode_t mode = 0600;     /* default to owner rw only */
 
-       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;
+       if (strlen(default_mode_str) != 0) {
+               mode = strtol(default_mode_str, NULL, 8);
        }
+       return mode;
+}
 
-       /* 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));
+static void build_kernel_number(struct sysfs_class_device *class_dev, struct udevice *udev)
+{
+       char *dig;
+
+       /* FIXME, figure out how to handle stuff like sdaj which will not work right now. */
+       dig = class_dev->name + strlen(class_dev->name);
+       while (isdigit(*(dig-1)))
+               dig--;
+       strfieldcpy(udev->kernel_number, dig);
+       dbg("kernel_number='%s'", udev->kernel_number);
+}
 
-               temp2 = strsep(&temp, ":");
-               strncpy(dev.group, temp2, sizeof(dev.owner));
+static void apply_format(struct udevice *udev, unsigned char *string)
+{
+       char name[NAME_SIZE];
+       char *pos;
 
-               dev.mode = strtol(temp, NULL, 8);
+       while (1) {
+               pos = strchr(string, '%');
 
-               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;
-               }
+               if (pos) {
+                       strfieldcpy(name, pos+2);
+                       *pos = 0x00;
+                       switch (pos[1]) {
+                       case 'b':
+                               if (strlen(udev->bus_id) == 0)
+                                       break;
+                               strcat(pos, udev->bus_id);
+                               dbg("substitute bus_id '%s'", udev->bus_id);
+                               break;
+                       case 'n':
+                               if (strlen(udev->kernel_number) == 0)
+                                       break;
+                               strcat(pos, udev->kernel_number);
+                               dbg("substitute kernel number '%s'", udev->kernel_number);
+                               break;
+                       case 'D':
+                               if (strlen(udev->kernel_number) == 0) {
+                                       strcat(pos, "disk");
+                                       break;
+                               }
+                               strcat(pos, "part");
+                               strcat(pos, udev->kernel_number);
+                               dbg("substitute kernel number '%s'", udev->kernel_number);
+                               break;
+                       case 'm':
+                               sprintf(pos, "%u", udev->minor);
+                               dbg("substitute minor number '%u'", udev->minor);
+                               break;
+                       case 'M':
+                               sprintf(pos, "%u", udev->major);
+                               dbg("substitute major number '%u'", udev->major);
+                               break;
+                       case 'c':
+                               if (strlen(udev->callout_value) == 0)
+                                       break;
+                               strcat(pos, udev->callout_value);
+                               dbg("substitute callout output '%s'", udev->callout_value);
+                               break;
+                       default:
+                               dbg("unknown substitution type '%%%c'", pos[1]);
+                               break;
+                       }
+                       strcat(string, name);
+               } else
+                       break;
        }
-
-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;
 }
 
 
@@ -472,8 +263,11 @@ static int exec_callout(struct config_device *dev, char *value, int len)
        pid_t pid;
        int value_set = 0;
        char buffer[256];
+       char *arg;
+       char *args[CALLOUT_MAXARG];
+       int i;
 
-       dbg("callout to %s\n", dev->exec_program);
+       dbg("callout to '%s'", dev->exec_program);
        retval = pipe(fds);
        if (retval != 0) {
                dbg("pipe failed");
@@ -486,21 +280,32 @@ static int exec_callout(struct config_device *dev, char *value, int len)
        }
 
        if (pid == 0) {
-               /*
-                * child 
-                */
+               /* child */
                close(STDOUT_FILENO);
                dup(fds[1]);    /* dup write side of pipe to STDOUT */
-               retval = execve(dev->exec_program, main_argv, main_envp);
+               if (strchr(dev->exec_program, ' ')) {
+                       /* callout with arguments */
+                       arg = dev->exec_program;
+                       for (i=0; i < CALLOUT_MAXARG-1; i++) {
+                               args[i] = strsep(&arg, " ");
+                               if (args[i] == NULL)
+                                       break;
+                       }
+                       if (args[i]) {
+                               dbg("too many args - %d", i);
+                               args[i] = NULL;
+                       }
+                       retval = execve(args[0], args, main_envp);
+               } else {
+                       retval = execve(dev->exec_program, main_argv, main_envp);
+               }
                if (retval != 0) {
                        dbg("child execve failed");
                        exit(1);
                }
                return -1; /* avoid compiler warning */
        } else {
-               /*
-                * Parent reads from fds[0].
-                */
+               /* parent reads from fds[0] */
                close(fds[1]);
                retval = 0;
                while (1) {
@@ -509,7 +314,7 @@ static int exec_callout(struct config_device *dev, char *value, int len)
                                break;
                        buffer[res] = '\0';
                        if (res > len) {
-                               dbg("callout len %d too short\n", len);
+                               dbg("callout len %d too short", len);
                                retval = -1;
                        }
                        if (value_set) {
@@ -520,6 +325,7 @@ static int exec_callout(struct config_device *dev, char *value, int len)
                                strncpy(value, buffer, len);
                        }
                }
+               dbg("callout returned '%s'", value);
                close(fds[0]);
                res = wait(&status);
                if (res < 0) {
@@ -537,30 +343,31 @@ static int exec_callout(struct config_device *dev, char *value, int len)
        return retval;
 }
 
-static int do_callout(struct sysfs_class_device *class_dev, struct udevice *udev)
+static int do_callout(struct sysfs_class_device *class_dev, struct udevice *udev, struct sysfs_device *sysfs_device)
 {
        struct config_device *dev;
        struct list_head *tmp;
-       char value[ID_SIZE];
 
        list_for_each(tmp, &config_device_list) {
                dev = list_entry(tmp, struct config_device, node);
                if (dev->type != CALLOUT)
                        continue;
 
-               if (exec_callout(dev, value, sizeof(value)))
+               if (sysfs_device) {
+                       dbg("dev->bus='%s' sysfs_device->bus='%s'", dev->bus, sysfs_device->bus);
+                       if (strcasecmp(dev->bus, sysfs_device->bus) != 0)
+                               continue;
+               }
+
+               /* substitute anything that needs to be in the program name */
+               apply_format(udev, dev->exec_program);
+               if (exec_callout(dev, udev->callout_value, NAME_SIZE))
                        continue;
-               if (strncmp(value, dev->id, sizeof(value)) != 0)
+               if (strcmp_pattern(dev->id, udev->callout_value) != 0)
                        continue;
-               strcpy(udev->name, dev->name);
-               if (dev->mode != 0) {
-                       udev->mode = dev->mode;
-                       strcpy(udev->owner, dev->owner);
-                       strcpy(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);
+               strfieldcpy(udev->name, dev->name);
+               dbg("callout returned matching value '%s', '%s' becomes '%s'",
+                   dev->id, class_dev->name, udev->name);
                return 0;
        }
        return -ENODEV;
@@ -571,15 +378,20 @@ static int do_label(struct sysfs_class_device *class_dev, struct udevice *udev,
        struct sysfs_attribute *tmpattr = NULL;
        struct config_device *dev;
        struct list_head *tmp;
-       char *temp = NULL;
+       char *c;
 
        list_for_each(tmp, &config_device_list) {
                dev = list_entry(tmp, struct config_device, node);
                if (dev->type != LABEL)
                        continue;
 
-               dbg_parse("LABEL: match file '%s' with value '%s'",
-                               dev->sysfs_file, dev->sysfs_value);
+               if (sysfs_device) {
+                       dbg("dev->bus='%s' sysfs_device->bus='%s'", dev->bus, sysfs_device->bus);
+                       if (strcasecmp(dev->bus, sysfs_device->bus) != 0)
+                               continue;
+               }
+
+               dbg("look for device attribute '%s'", dev->sysfs_file);
                /* try to find the attribute in the class device directory */
                tmpattr = sysfs_get_classdev_attr(class_dev, dev->sysfs_file);
                if (tmpattr)
@@ -595,20 +407,17 @@ static int do_label(struct sysfs_class_device *class_dev, struct udevice *udev,
                continue;
 
 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)
+               c = tmpattr->value + strlen(tmpattr->value)-1;
+               if (*c == '\n')
+                       *c = 0x00;
+               dbg("compare attribute '%s' value '%s' with '%s'",
+                         dev->sysfs_file, tmpattr->value, dev->sysfs_value);
+               if (strcmp_pattern(dev->sysfs_value, tmpattr->value) != 0)
                        continue;
 
-               strcpy(udev->name, dev->name);
-               if (dev->mode != 0) {
-                       udev->mode = dev->mode;
-                       strcpy(udev->owner, dev->owner);
-                       strcpy(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);
+               strfieldcpy(udev->name, dev->name);
+               dbg("found matching attribute '%s', '%s' becomes '%s' ",
+                   dev->sysfs_file, class_dev->name, udev->name);
 
                return 0;
        }
@@ -632,37 +441,33 @@ static int do_number(struct sysfs_class_device *class_dev, struct udevice *udev,
                if (dev->type != NUMBER)
                        continue;
 
+               dbg("dev->bus='%s' sysfs_device->bus='%s'", dev->bus, sysfs_device->bus);
+               if (strcasecmp(dev->bus, sysfs_device->bus) != 0)
+                       continue;
+
                found = 0;
-               strcpy(path, sysfs_device->path);
+               strfieldcpy(path, sysfs_device->path);
                temp = strrchr(path, '/');
-               dbg_parse("NUMBER path = '%s'", path);
-               dbg_parse("NUMBER temp = '%s' id = '%s'", temp, dev->id);
+               dbg("search '%s' in '%s', path='%s'", dev->id, temp, path);
                if (strstr(temp, dev->id) != NULL) {
                        found = 1;
                } else {
                        *temp = 0x00;
                        temp = strrchr(path, '/');
-                       dbg_parse("NUMBER temp = '%s' id = '%s'", temp, dev->id);
+                       dbg("search '%s' in '%s', path='%s'", dev->id, temp, path);
                        if (strstr(temp, dev->id) != NULL)
                                found = 1;
                }
                if (!found)
                        continue;
-               strcpy(udev->name, dev->name);
-               if (dev->mode != 0) {
-                       udev->mode = dev->mode;
-                       strcpy(udev->owner, dev->owner);
-                       strcpy(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(udev->name, dev->name);
+               dbg("found matching id '%s', '%s' becomes '%s'",
+                   dev->id, class_dev->name, udev->name);
                return 0;
        }
        return -ENODEV;
 }
 
-
 static int do_topology(struct sysfs_class_device *class_dev, struct udevice *udev, struct sysfs_device *sysfs_device)
 {
        struct config_device *dev;
@@ -680,39 +485,35 @@ static int do_topology(struct sysfs_class_device *class_dev, struct udevice *ude
                if (dev->type != TOPOLOGY)
                        continue;
 
+               dbg("dev->bus='%s' sysfs_device->bus='%s'", dev->bus, sysfs_device->bus);
+               if (strcasecmp(dev->bus, sysfs_device->bus) != 0)
+                       continue;
+
                found = 0;
-               strcpy(path, sysfs_device->path);
+               strfieldcpy(path, sysfs_device->path);
                temp = strrchr(path, '/');
-               dbg_parse("TOPOLOGY path = '%s'", path);
-               dbg_parse("TOPOLOGY temp = '%s' place = '%s'", temp, dev->place);
+               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);
+                       dbg("search '%s' in '%s', path='%s'", dev->place, temp, path);
                        if (strstr(temp, dev->place) != NULL)
                                found = 1;
                }
                if (!found)
                        continue;
 
-               strcpy(udev->name, dev->name);
-               if (dev->mode != 0) {
-                       udev->mode = dev->mode;
-                       strcpy(udev->owner, dev->owner);
-                       strcpy(udev->group, dev->group);
-               }
-               dbg_parse("device at '%s' becomes '%s' - owner = %s, group = %s, mode = %#o",
-                       dev->place, udev->name, 
-                       dev->owner, dev->group, dev->mode);
-               
+               strfieldcpy(udev->name, dev->name);
+               dbg("found matching place '%s', '%s' becomes '%s'",
+                   dev->place, class_dev->name, udev->name);
                return 0;
        }
        return -ENODEV;
 }
 
-static int do_replace(struct sysfs_class_device *class_dev, struct udevice *udev)
+static int do_replace(struct sysfs_class_device *class_dev, struct udevice *udev, struct sysfs_device *sysfs_device)
 {
        struct config_device *dev;
        struct list_head *tmp;
@@ -722,32 +523,31 @@ static int do_replace(struct sysfs_class_device *class_dev, struct udevice *udev
                if (dev->type != REPLACE)
                        continue;
 
-               dbg_parse("REPLACE: replace name '%s' with '%s'",
-                         dev->kernel_name, dev->name);
-               if (strcmp(dev->kernel_name, class_dev->name) != 0)
+               dbg("compare name '%s' with '%s'", dev->kernel_name, class_dev->name);
+               if (strcmp_pattern(dev->kernel_name, class_dev->name) != 0)
                        continue;
 
-               strcpy(udev->name, dev->name);
-               if (dev->mode != 0) {
-                       udev->mode = dev->mode;
-                       strcpy(udev->owner, dev->owner);
-                       strcpy(udev->group, dev->group);
-               }
-               dbg_parse("'%s' becomes '%s' - owner = %s, group = %s, mode = %#o",
-                       dev->kernel_name, udev->name, 
-                       dev->owner, dev->group, dev->mode);
+               strfieldcpy(udev->name, dev->name);
+               dbg("found name, '%s' becomes '%s'", dev->kernel_name, udev->name);
                
                return 0;
        }
        return -ENODEV;
 }
 
-static int get_attr(struct sysfs_class_device *class_dev, struct udevice *udev)
+static void do_kernelname(struct sysfs_class_device *class_dev, struct udevice *udev)
+{
+       /* heh, this is pretty simple... */
+       strfieldcpy(udev->name, class_dev->name);
+}
+
+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 perm_device *perm;
 
        udev->mode = 0;
 
@@ -761,97 +561,80 @@ static int get_attr(struct sysfs_class_device *class_dev, struct udevice *udev)
                 * up in the kernel...
                 */
                if (strstr(class_dev->path, "block")) {
-                       dbg_parse("looking at block device...");
+                       dbg("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...");
-                               strcpy(path, class_dev->path);
+                               dbg("really is a partition");
+                               strfieldcpy(path, class_dev->path);
                                temp = strrchr(path, '/');
                                *temp = 0x00;
-                               dbg_parse("looking for a class device at '%s'", path);
+                               dbg("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);
+                                       dbg("class_dev_parent->name='%s'", class_dev_parent->name);
                                        if (class_dev_parent->sysdevice)
                                                sysfs_device = class_dev_parent->sysdevice;
                                }
                        }
                }
        }
-               
+
        if (sysfs_device) {
-               dbg_parse("sysfs_device->path = '%s'", sysfs_device->path);
-               dbg_parse("sysfs_device->bus_id = '%s'", sysfs_device->bus_id);
+               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);
        } else {
-               dbg_parse("class_dev->name = '%s'", class_dev->name);
+               dbg("class_dev->name = '%s'", class_dev->name);
        }
 
+       build_kernel_number(class_dev, udev);
+
        /* rules are looked at in priority order */
-       retval = do_callout(class_dev, udev);
+       retval = do_callout(class_dev, udev, sysfs_device);
        if (retval == 0)
-               goto done;
+               goto found;
 
        retval = do_label(class_dev, udev, sysfs_device);
        if (retval == 0)
-               goto done;
+               goto found;
 
        retval = do_number(class_dev, udev, sysfs_device);
        if (retval == 0)
-               goto done;
+               goto found;
 
        retval = do_topology(class_dev, udev, sysfs_device);
        if (retval == 0)
-               goto done;
+               goto found;
 
-       retval = do_replace(class_dev, udev);
+       retval = do_replace(class_dev, udev, sysfs_device);
        if (retval == 0)
-               goto done;
+               goto found;
 
-       strcpy(udev->name, class_dev->name);
+       do_kernelname(class_dev, udev);
+       goto done;
 
-done:
+found:
        /* substitute placeholder in NAME  */
-       while (1) {
-               char *pos = strchr(udev->name, '%');
-               char *dig;
-               char name[NAME_SIZE];
-               if (pos) {
-                       strcpy(name, pos+2);
-                       *pos = 0x00;
-                       switch (pos[1]) {
-                       case 'n':
-                               dig = class_dev->name + strlen(class_dev->name);
-                               while (isdigit(*(dig-1)))
-                                       dig--;
-                               strcat(udev->name, dig);
-                               dbg_parse("kernel number appended: %s", dig);
-                               break;
-                       case 'm':
-                               sprintf(pos, "%u", udev->minor);
-                               dbg_parse("minor number appended: %u", udev->minor);
-                               break;
-                       case 'M':
-                               sprintf(pos, "%u", udev->major);
-                               dbg_parse("major number appended: %u", udev->major);
-                               break;
-                       default:
-                               dbg_parse("unknown substitution type: %%%c", pos[1]);
-                               break;
-                       }
-                       strcat(udev->name, name);
-               } else
-                       break;
-       }
+       apply_format(udev, udev->name);
 
-       /* mode was never set above */
-       if (!udev->mode) {
+done:
+       perm = find_perm(udev->name);
+       if (perm) {
+               udev->mode = perm->mode;
+               strfieldcpy(udev->owner, perm->owner);
+               strfieldcpy(udev->group, perm->group);
+       } else {
+               /* no matching perms found :( */
                udev->mode = get_default_mode(class_dev);
                udev->owner[0] = 0x00;
                udev->group[0] = 0x00;
        }
+       dbg("name, '%s' is going to have owner='%s', group='%s', mode = %#o",
+           udev->name, udev->owner, udev->group, udev->mode);
 
        if (class_dev_parent)
                sysfs_close_class_device(class_dev_parent);
@@ -859,22 +642,11 @@ done:
        return 0;
 }
 
-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;
-}
-
 int namedev_init(void)
 {
        int retval;
-       
-       retval = namedev_init_config();
+
+       retval = namedev_init_rules();
        if (retval)
                return retval;
 
@@ -882,8 +654,7 @@ int namedev_init(void)
        if (retval)
                return retval;
 
-       dump_dev_list();
+       dump_config_dev_list();
+       dump_perm_dev_list();
        return retval;
 }
-
-