chiark / gitweb /
[PATCH] udev - drop all methods :)
[elogind.git] / namedev.c
index 30c276ae1c91308de08964b02e7eff04dd30ae40..41fefc4bc8644ab0dd0c300b067941f4d85e04a8 100644 (file)
--- a/namedev.c
+++ b/namedev.c
@@ -102,48 +102,13 @@ static int strcmp_pattern(const char *p, const char *s)
        if (strlen(b->var))             \
                strcpy(a->var, b->var);
 
-int add_config_dev(struct config_device *new_dev)
-{
-       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);
-               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);
-               copy_string(dev, new_dev, symlink);
-               return 0;
-       }
-
-       /* 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_tail(&tmp_dev->node, &config_device_list);
-       //dump_config_dev(tmp_dev);
-       return 0;
-}
-
 int add_perm_dev(struct perm_device *new_dev)
 {
-       struct list_head *tmp;
+       struct perm_device *dev;
        struct perm_device *tmp_dev;
 
        /* 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);
+       list_for_each_entry(dev, &perm_device_list, node) {
                if (strcmp_pattern(new_dev->name, dev->name))
                        continue;
                copy_var(dev, new_dev, mode);
@@ -164,11 +129,9 @@ int add_perm_dev(struct perm_device *new_dev)
 
 static struct perm_device *find_perm(char *name)
 {
-       struct list_head *tmp;
-       struct perm_device *perm = NULL;
+       struct perm_device *perm;
 
-       list_for_each(tmp, &perm_device_list) {
-               perm = list_entry(tmp, struct perm_device, node);
+       list_for_each_entry(perm, &perm_device_list, node) {
                if (strcmp_pattern(perm->name, name))
                        continue;
                return perm;
@@ -186,17 +149,6 @@ static mode_t get_default_mode(struct sysfs_class_device *class_dev)
        return mode;
 }
 
-static void build_kernel_number(struct sysfs_class_device *class_dev, struct udevice *udev)
-{
-       char *dig;
-
-       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);
-}
-
 static void apply_format(struct udevice *udev, unsigned char *string)
 {
        char name[NAME_SIZE];
@@ -230,6 +182,12 @@ static void apply_format(struct udevice *udev, unsigned char *string)
                                strcat(pos, udev->bus_id);
                                dbg("substitute bus_id '%s'", udev->bus_id);
                                break;
+                       case 'k':
+                               if (strlen(udev->kernel_name) == 0)
+                                       break;
+                               strcat(pos, udev->kernel_name);
+                               dbg("substitute kernel name '%s'", udev->kernel_name);
+                               break;
                        case 'n':
                                if (strlen(udev->kernel_number) == 0)
                                        break;
@@ -239,11 +197,12 @@ static void apply_format(struct udevice *udev, unsigned char *string)
                        case 'D':
                                if (strlen(udev->kernel_number) == 0) {
                                        strcat(pos, "disc");
+                                       dbg("substitute devfs disc");
                                        break;
                                }
                                strcat(pos, "part");
                                strcat(pos, udev->kernel_number);
-                               dbg("substitute kernel number '%s'", udev->kernel_number);
+                               dbg("substitute devfs part '%s'", udev->kernel_number);
                                break;
                        case 'm':
                                sprintf(pos, "%u", udev->minor);
@@ -254,25 +213,27 @@ static void apply_format(struct udevice *udev, unsigned char *string)
                                dbg("substitute major number '%u'", udev->major);
                                break;
                        case 'c':
-                               if (strlen(udev->callout_value) == 0)
+                               if (strlen(udev->program_result) == 0)
                                        break;
                                if (num) {
                                        /* get part of return string */
-                                       strncpy(temp, udev->callout_value, sizeof(temp));
+                                       strncpy(temp, udev->program_result, sizeof(temp));
                                        pos2 = temp;
                                        while (num) {
                                                num--;
                                                pos3 = strsep(&pos2, " ");
                                                if (pos3 == NULL) {
-                                                       dbg("requested part of callout string not found");
+                                                       dbg("requested part of result string not found");
                                                        break;
                                                }
                                        }
-                                       strcat(pos, pos3);
-                                       dbg("substitute partial callout output '%s'", pos3);
+                                       if (pos3) {
+                                               strcat(pos, pos3);
+                                               dbg("substitute part of result string '%s'", pos3);
+                                       }
                                } else {
-                                       strcat(pos, udev->callout_value);
-                                       dbg("substitute callout output '%s'", udev->callout_value);
+                                       strcat(pos, udev->program_result);
+                                       dbg("substitute result string '%s'", udev->program_result);
                                }
                                break;
                        default:
@@ -291,6 +252,8 @@ static struct bus_file {
 } bus_files[] = {
        { .bus = "scsi",        .file = "vendor" },
        { .bus = "usb",         .file = "idVendor" },
+       { .bus = "ide",         .file = "detach_state" },
+       { .bus = "pci",         .file = "vendor" },
        {}
 };
 
@@ -335,7 +298,7 @@ exit:
        return; /* here to prevent compiler warning... */
 }
 
-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;
@@ -348,7 +311,7 @@ static int exec_callout(struct config_device *dev, char *value, int len)
        char *args[CALLOUT_MAXARG];
        int i;
 
-       dbg("callout to '%s'", dev->exec_program);
+       dbg("executing '%s'", path);
        retval = pipe(fds);
        if (retval != 0) {
                dbg("pipe failed");
@@ -364,9 +327,9 @@ static int exec_callout(struct config_device *dev, char *value, int len)
                /* child */
                close(STDOUT_FILENO);
                dup(fds[1]);    /* dup write side of pipe to STDOUT */
-               if (strchr(dev->exec_program, ' ')) {
-                       /* callout with arguments */
-                       pos = dev->exec_program;
+               if (strchr(path, ' ')) {
+                       /* exec with arguments */
+                       pos = path;
                        for (i=0; i < CALLOUT_MAXARG-1; i++) {
                                args[i] = strsep(&pos, " ");
                                if (args[i] == NULL)
@@ -378,7 +341,7 @@ static int exec_callout(struct config_device *dev, char *value, int len)
                        }
                        retval = execve(args[0], args, main_envp);
                } else {
-                       retval = execve(dev->exec_program, main_argv, main_envp);
+                       retval = execve(path, main_argv, main_envp);
                }
                if (retval != 0) {
                        dbg("child execve failed");
@@ -395,11 +358,11 @@ 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", len);
+                               dbg("result len %d too short", len);
                                retval = -1;
                        }
                        if (value_set) {
-                               dbg("callout value already set");
+                               dbg("result value already set");
                                retval = -1;
                        } else {
                                value_set = 1;
@@ -407,7 +370,7 @@ static int exec_callout(struct config_device *dev, char *value, int len)
                                pos = value + strlen(value)-1;
                                if (pos[0] == '\n')
                                pos[0] = '\0';
-                               dbg("callout returned '%s'", value);
+                               dbg("result is '%s'", value);
                        }
                }
                close(fds[0]);
@@ -417,103 +380,70 @@ static int exec_callout(struct config_device *dev, char *value, int len)
                        retval = -1;
                }
 
-#ifndef __KLIBC__
                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, struct sysfs_device *sysfs_device)
-{
-       struct config_device *dev;
-       struct list_head *tmp;
-
-       list_for_each(tmp, &config_device_list) {
-               dev = list_entry(tmp, struct config_device, node);
-               if (dev->type != CALLOUT)
-                       continue;
-
-               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 (strcmp_pattern(dev->id, udev->callout_value) != 0)
-                       continue;
-               strfieldcpy(udev->name, dev->name);
-               strfieldcpy(udev->symlink, dev->symlink);
-               dbg("callout returned matching value '%s', '%s' becomes '%s'",
-                   dev->id, class_dev->name, udev->name);
-               return 0;
-       }
-       return -ENODEV;
-}
-
-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;
        char *c;
 
-       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;
 
-               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'", pair->file);
+       /* try to find the attribute in the class device directory */
+       tmpattr = sysfs_get_classdev_attr(class_dev, pair->file);
+       if (tmpattr)
+               goto label_found;
 
-               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);
+       /* look in the class device directory if present */
+       if (sysfs_device) {
+               tmpattr = sysfs_get_device_attr(sysfs_device, pair->file);
                if (tmpattr)
                        goto label_found;
-
-               /* 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;
-               }
-
-               continue;
+       }
+       return -ENODEV;
 
 label_found:
-               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;
+       c = tmpattr->value + strlen(tmpattr->value)-1;
+       if (*c == '\n')
+               *c = 0x00;
+       dbg("compare attribute '%s' value '%s' with '%s'",
+                 pair->file, tmpattr->value, pair->value);
+       if (strcmp_pattern(pair->value, tmpattr->value) != 0)
+               return -ENODEV;
 
-               strfieldcpy(udev->name, dev->name);
-               strfieldcpy(udev->symlink, dev->symlink);
-               dbg("found matching attribute '%s', '%s' becomes '%s' ",
-                   dev->sysfs_file, class_dev->name, udev->name);
+       dbg("found matching attribute '%s' with value '%s'",
+           pair->file, pair->value);
+       return 0;
+}
 
-               return 0;
+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;
+
+       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;
@@ -522,112 +452,56 @@ static int do_number(struct sysfs_class_device *class_dev, struct udevice *udev,
        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;
-
-               dbg("dev->bus='%s' sysfs_device->bus='%s'", dev->bus, sysfs_device->bus);
-               if (strcasecmp(dev->bus, sysfs_device->bus) != 0)
-                       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->id, temp, path);
+       if (strstr(temp, dev->id) != NULL) {
+               found = 1;
+       } else {
+               *temp = 0x00;
                temp = strrchr(path, '/');
                dbg("search '%s' in '%s', path='%s'", dev->id, temp, path);
-               if (strstr(temp, dev->id) != NULL) {
+               if (strstr(temp, dev->id) != NULL)
                        found = 1;
-               } else {
-                       *temp = 0x00;
-                       temp = strrchr(path, '/');
-                       dbg("search '%s' in '%s', path='%s'", dev->id, temp, path);
-                       if (strstr(temp, dev->id) != NULL)
-                               found = 1;
-               }
-               if (!found)
-                       continue;
-               strfieldcpy(udev->name, dev->name);
-               strfieldcpy(udev->symlink, dev->symlink);
-               dbg("found matching id '%s', '%s' becomes '%s'",
-                   dev->id, class_dev->name, udev->name);
-               return 0;
        }
-       return -ENODEV;
+       if (!found) {
+               dbg("id doesn't match");
+               return -ENODEV;
+       }
+
+       return 0;
 }
 
-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 NUMBER 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;
-
-               dbg("dev->bus='%s' sysfs_device->bus='%s'", dev->bus, sysfs_device->bus);
-               if (strcasecmp(dev->bus, sysfs_device->bus) != 0)
-                       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("search '%s' in '%s', path='%s'", dev->place, temp, path);
-               if (strstr(temp, dev->place) != NULL) {
+               if (strstr(temp, dev->place) != NULL)
                        found = 1;
-               } else {
-                       *temp = 0x00;
-                       temp = strrchr(path, '/');
-                       dbg("search '%s' in '%s', path='%s'", dev->place, temp, path);
-                       if (strstr(temp, dev->place) != NULL)
-                               found = 1;
-               }
-               if (!found)
-                       continue;
-
-               strfieldcpy(udev->name, dev->name);
-               strfieldcpy(udev->symlink, dev->symlink);
-               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, struct sysfs_device *sysfs_device)
-{
-       struct config_device *dev;
-       struct list_head *tmp;
-
-       list_for_each(tmp, &config_device_list) {
-               dev = list_entry(tmp, struct config_device, node);
-               if (dev->type != REPLACE)
-                       continue;
-
-               dbg("compare name '%s' with '%s'", dev->kernel_name, class_dev->name);
-               if (strcmp_pattern(dev->kernel_name, class_dev->name) != 0)
-                       continue;
-
-               strfieldcpy(udev->name, dev->name);
-               strfieldcpy(udev->symlink, dev->symlink);
-               dbg("found name, '%s' becomes '%s'", dev->kernel_name, udev->name);
-               
-               return 0;
+       if (!found) {
+               dbg("place doesn't match");
+               return -ENODEV;
        }
-       return -ENODEV;
-}
 
-static void do_kernelname(struct sysfs_class_device *class_dev, struct udevice *udev)
-{
-       /* heh, this is pretty simple... */
-       strfieldcpy(udev->name, class_dev->name);
+       return 0;
 }
 
 static struct sysfs_device *get_sysfs_device(struct sysfs_class_device *class_dev)
@@ -635,70 +509,50 @@ static struct sysfs_device *get_sysfs_device(struct sysfs_class_device *class_de
        struct sysfs_device *sysfs_device;
        struct sysfs_class_device *class_dev_parent;
        int loop;
-       int retval;
        char filename[SYSFS_PATH_MAX + 6];
-
-       /* FIXME!!! */
-       /* This is needed here as we can easily out-race the placement of the
-        * device symlink by the kernel.  The call to sleep(1); will be removed
-        * once libsysfs can be queried for sysfs_get_classdev_device()
-        * multiple times and have it return the proper information when the
-        * class device really shows up.  For now, we live with the time
-        * delay...
+       int retval;
+       char *temp;
+       int partition = 0;
+
+       /* 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...
         */
-//     sleep(1);
-       loop = 10;
+       strcpy(filename, class_dev->path);
+       dbg("filename = %s", filename);
+       if (strcmp(class_dev->classname, SYSFS_BLOCK_NAME) == 0) {
+               if (isdigit(class_dev->path[strlen(class_dev->path)-1])) {
+                       temp = strrchr(filename, '/');
+                       if (temp) {
+                               char *temp2 = strrchr(filename, '/');
+                               partition = 1;
+                               *temp = 0x00;
+                               dbg("temp2 = %s", temp2);
+                               if (temp2 && (strcmp(temp2, "/block") == 0)) {
+                                       /* oops, we have no parent block device, so go back to original directory */
+                                       strcpy(filename, class_dev->path);
+                                       partition = 0;
+                               }
+                       }
+               }
+       }
+       strcat(filename, "/device");
+
+       loop = 2;
        while (loop--) {
                struct stat buf;
-
-               strcpy(filename, class_dev->path);
-               strcat(filename, "/device");
                dbg("looking for '%s'", filename);
                retval = stat(filename, &buf);
                if (!retval)
                        break;
-#if 0
-               /* 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 (strcmp(class_dev->classname, SYSFS_BLOCK_NAME) == 0) {
-                       if (isdigit(class_dev->path[strlen(class_dev->path)-1])) {
-                               char *temp = strrchr(filename, '/');
-                               if (temp) {
-                                       *temp = 0x00;
-                                       temp = strrchr(filename, '/');
-                                       if (temp) {
-                                               *temp = 0x00;
-                                               strcat(filename, "/device");
-                                               dbg("looking for '%s'", filename);
-                                               retval = stat(filename, &buf);
-                                               if (!retval)
-                                                       break;
-                                       }
-                               }
-                       }
-               }
-#endif
-//                             class_dev_parent = sysfs_get_classdev_parent(class_dev);
-//                             if (class_dev_parent == NULL) {
-//                                     dbg("sysfs_get_classdev_parent for class device '%s' failed", class_dev->name);
-//                             } else {
-//                                     strcpy(filename, class_dev_parent->path);
-//                                     strcat(filename, "/device");
-//                                     dbg("looking for '%s'", filename);
-//                                     retval = stat(filename, &buf);
-//                                     if (!retval)
-//                                             break;
-//                             }
-//                     }
-//             }
                /* sleep to give the kernel a chance to create the device file */
                sleep(1);
        }
-//     retval = -ENODEV;
-
-//     sleep(1);
 
        loop = 1;       /* FIXME put a real value in here for when everything is fixed... */
        while (loop--) {
@@ -708,30 +562,30 @@ static struct sysfs_device *get_sysfs_device(struct sysfs_class_device *class_de
                if (sysfs_device != NULL)
                        goto exit;
 
-               /* 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 (strcmp(class_dev->classname, SYSFS_BLOCK_NAME) == 0) {
-                       dbg("looking at block device");
-                       if (isdigit(class_dev->path[strlen(class_dev->path)-1])) {
-                               dbg("really is a partition");
-                               class_dev_parent = sysfs_get_classdev_parent(class_dev);
-                               if (class_dev_parent == NULL) {
-                                       dbg("sysfs_get_classdev_parent for class device '%s' failed", class_dev->name);
-                               } else {
-                                       dbg("class_dev_parent->name='%s'", class_dev_parent->name);
-                                       sysfs_device = sysfs_get_classdev_device(class_dev_parent);
-                                       if (sysfs_device != NULL)
-                                               goto exit;
-                               }
+               /* if it's a partition, we need to get the parent device */
+               if (partition) {
+                       /* FIXME  HACK HACK HACK HACK
+                        * for some reason partitions need this extra sleep here, in order
+                        * to wait for the device properly.  Once the libsysfs code is
+                        * fixed properly, this sleep should go away, and we can just loop above.
+                        */
+                       sleep(1);
+                       dbg("really is a partition");
+                       class_dev_parent = sysfs_get_classdev_parent(class_dev);
+                       if (class_dev_parent == NULL) {
+                               dbg("sysfs_get_classdev_parent for class device '%s' failed", class_dev->name);
+                       } else {
+                               dbg("class_dev_parent->name='%s'", class_dev_parent->name);
+                               sysfs_device = sysfs_get_classdev_device(class_dev_parent);
+                               if (sysfs_device != NULL)
+                                       goto exit;
                        }
                }
                /* sleep to give the kernel a chance to create the link */
-               /* sleep(1); */
-
+               /* FIXME remove comment...
+               sleep(1); */
        }
-//     dbg("Timed out waiting for device symlink, continuing on anyway...");
+       dbg("Timed out waiting for device symlink, continuing on anyway...");
 exit:
        return sysfs_device;
 }
@@ -739,9 +593,9 @@ exit:
 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;
+       struct config_device *dev;
        struct perm_device *perm;
+       char *pos;
 
        udev->mode = 0;
 
@@ -757,30 +611,118 @@ int namedev_name_device(struct sysfs_class_device *class_dev, struct udevice *ud
                dbg("class_dev->name = '%s'", class_dev->name);
        }
 
-       build_kernel_number(class_dev, udev);
+       strfieldcpy(udev->kernel_name, class_dev->name);
 
-       /* rules are looked at in priority order */
-       retval = do_callout(class_dev, udev, sysfs_device);
-       if (retval == 0)
-               goto found;
+       /* 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);
 
-       retval = do_label(class_dev, udev, sysfs_device);
-       if (retval == 0)
-               goto found;
+       /* look for a matching rule to apply */
+       list_for_each_entry(dev, &config_device_list, node) {
+               dbg("process rule");
 
-       retval = do_number(class_dev, udev, sysfs_device);
-       if (retval == 0)
-               goto found;
+               /* check for matching bus value */
+               if (dev->bus[0] != '\0') {
+                       if (sysfs_device == NULL) {
+                               dbg("device has no bus");
+                               continue;
+                       }
+                       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");
+                               continue;
+                       } else {
+                               dbg(FIELD_BUS " matches");
+                       }
+               }
 
-       retval = do_topology(class_dev, udev, sysfs_device);
-       if (retval == 0)
-               goto found;
+               /* 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");
+                               continue;
+                       } else {
+                               dbg(FIELD_KERNEL " matches");
+                       }
+               }
+
+               /* 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");
+                               continue;
+                       } else {
+                               dbg(FIELD_ID " matches");
+                       }
+               }
+
+               /* 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");
+                               continue;
+                       } else {
+                               dbg(FIELD_PLACE " matches");
+                       }
+               }
+
+               /* 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");
+                               continue;
+                       } else {
+                               dbg(FIELD_SYSFS " matches");
+                       }
+               }
+
+               /* execute external program */
+               if (dev->program[0] != '\0') {
+                       dbg("check " FIELD_PROGRAM);
+                       apply_format(udev, dev->program);
+                       if (execute_program(dev->program, udev->program_result, NAME_SIZE) != 0) {
+                               dbg(FIELD_PROGRAM " returned nozero");
+                               continue;
+                       } else {
+                               dbg(FIELD_PROGRAM " returned successful");
+                       }
+               }
 
-       retval = do_replace(class_dev, udev, sysfs_device);
-       if (retval == 0)
+               /* 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");
+                               continue;
+                       } else {
+                               dbg(FIELD_RESULT " matches");
+                       }
+               }
+
+               /* check if we are instructed to ignore this device */
+               if (dev->name[0] == '\0') {
+                       dbg("instructed to ignore this device");
+                       return -1;
+               }
+
+               /* Yup, this rule belongs to us! */
+               dbg("found matching rule, '%s' becomes '%s'", dev->kernel, udev->name);
+               strfieldcpy(udev->name, dev->name);
+               strfieldcpy(udev->symlink, dev->symlink);
                goto found;
+       }
 
-       do_kernelname(class_dev, udev);
+       /* no rule was found so we use the kernel name */
+       strfieldcpy(udev->name, class_dev->name);
        goto done;
 
 found: