*/
/* define this to enable parsing debugging */
-#define DEBUG_PARSER
+#define DEBUG_PARSER
#include <stddef.h>
#include <stdlib.h>
return retval;
}
-static int get_attr(struct sysfs_class_device *class_dev, struct udevice *udev)
+static int do_callout(struct sysfs_class_device *class_dev, struct udevice *udev)
{
+ struct config_device *dev;
struct list_head *tmp;
- int retval = 0;
- int found;
+ char value[ID_SIZE];
- udev->mode = 0;
- if (class_dev->sysdevice) {
- dbg_parse("class_dev->sysdevice->path = '%s'", class_dev->sysdevice->path);
- dbg_parse("class_dev->sysdevice->bus_id = '%s'", class_dev->sysdevice->bus_id);
- } else {
- dbg_parse("class_dev->name = '%s'", class_dev->name);
+ 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)))
+ continue;
+ if (strncmp(value, dev->id, sizeof(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);
+ return 0;
}
+ return -ENODEV;
+}
+
+static int do_label(struct sysfs_class_device *class_dev, struct udevice *udev, struct sysfs_device *sysfs_device)
+{
+ struct sysfs_attribute *tmpattr = NULL;
+ struct config_device *dev;
+ struct list_head *tmp;
+ char *temp = NULL;
+
list_for_each(tmp, &config_device_list) {
- struct config_device *dev = list_entry(tmp, struct config_device, node);
- switch (dev->type) {
- case LABEL:
- {
- struct sysfs_attribute *tmpattr = NULL;
- struct sysfs_class_device *class_dev_parent = NULL;
- char *temp = NULL;
-
- 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);
+ 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);
+ /* 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;
+
+ /* 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;
+ }
- /* look in the class device directory if present */
- if (class_dev->sysdevice) {
- tmpattr = sysfs_get_device_attr(class_dev->sysdevice, dev->sysfs_file);
- if (tmpattr)
- goto label_found;
- }
+ continue;
- /* 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...");
- strcpy(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);
- continue;
- }
- dbg_parse("class_dev_parent->name = %s", class_dev_parent->name);
+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;
- /* try to find the attribute in the class device directory */
- tmpattr = sysfs_get_classdev_attr(class_dev_parent, dev->sysfs_file);
- if (tmpattr)
- goto label_found;
-
- /* look in the class device directory if present */
- if (class_dev_parent->sysdevice) {
- tmpattr = sysfs_get_device_attr(class_dev_parent->sysdevice, dev->sysfs_file);
- if (tmpattr)
- goto label_found;
- }
-
- }
- }
- if (class_dev_parent)
- sysfs_close_class_device(class_dev_parent);
+ 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);
- continue;
+ return 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) {
- if (class_dev_parent)
- sysfs_close_class_device(class_dev_parent);
- continue;
- }
+static int do_number(struct sysfs_class_device *class_dev, struct udevice *udev, struct sysfs_device *sysfs_device)
+{
+ struct config_device *dev;
+ struct list_head *tmp;
+ char path[SYSFS_PATH_MAX];
+ int found;
+ char *temp = NULL;
- strcpy(udev->name, dev->name);
- if (isdigit(class_dev->path[strlen(class_dev->path)-1])) {
- temp = &class_dev->path[strlen(class_dev->path)-1];
- strcat(udev->name, temp);
- }
- 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);
- if (class_dev_parent)
- sysfs_close_class_device(class_dev_parent);
- goto done;
- break;
- }
- case NUMBER:
- {
- char path[SYSFS_PATH_MAX];
- char *temp;
+ /* we have to have a sysfs device for NUMBER to work */
+ if (!sysfs_device)
+ return -ENODEV;
- found = 0;
- if (!class_dev->sysdevice)
- continue;
- strcpy(path, class_dev->sysdevice->path);
+ list_for_each(tmp, &config_device_list) {
+ dev = list_entry(tmp, struct config_device, node);
+ if (dev->type != NUMBER)
+ continue;
+
+ found = 0;
+ strcpy(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 path = '%s'", path);
dbg_parse("NUMBER temp = '%s' id = '%s'", temp, dev->id);
- if (strstr(temp, dev->id) != NULL) {
+ if (strstr(temp, dev->id) != NULL)
found = 1;
- } else {
- *temp = 0x00;
- temp = strrchr(path, '/');
- dbg_parse("NUMBERY temp = '%s' id = '%s'", temp, dev->id);
- if (strstr(temp, dev->id) != NULL)
- found = 1;
- }
- if (!found)
- continue;
+ }
+ 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);
+ return 0;
+ }
+ return -ENODEV;
+}
- 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);
- goto done;
- break;
- }
- case TOPOLOGY:
- {
- char path[SYSFS_PATH_MAX];
- char *temp;
- if (!class_dev->sysdevice)
- continue;
- found = 0;
- strcpy(path, class_dev->sysdevice->path);
+static int do_topology(struct sysfs_class_device *class_dev, struct udevice *udev, 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 */
+ 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;
+ strcpy(path, sysfs_device->path);
+ 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) {
+ 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) {
+ if (strstr(temp, dev->place) != NULL)
found = 1;
- } else {
- *temp = 0x00;
+ }
+ 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);
+
+ return 0;
+ }
+ return -ENODEV;
+}
+
+static int do_replace(struct sysfs_class_device *class_dev, struct udevice *udev)
+{
+ 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_parse("REPLACE: replace name '%s' with '%s'",
+ dev->kernel_name, dev->name);
+ if (strcmp(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);
+
+ return 0;
+ }
+ return -ENODEV;
+}
+
+static int get_attr(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;
+
+ 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...");
+ strcpy(path, class_dev->path);
temp = strrchr(path, '/');
- dbg_parse("TOPOLOGY temp = '%s' place = '%s'", temp, dev->place);
- if (strstr(temp, dev->place) != NULL)
- found = 1;
+ *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;
+ }
}
- if (!found)
- continue;
+ }
+ }
+
+ 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);
+ }
- 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);
- goto done;
- break;
- }
- case CALLOUT:
- {
- char value[ID_SIZE];
+ /* rules are looked at in priority order */
+ retval = do_callout(class_dev, udev);
+ if (retval == 0)
+ goto done;
- if (exec_callout(dev, value, sizeof(value)))
- continue;
- if (strncmp(value, dev->id, sizeof(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);
- goto done;
- break;
- }
- case REPLACE:
- if (strcmp(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);
+ retval = do_label(class_dev, udev, sysfs_device);
+ if (retval == 0)
+ goto done;
+
+ retval = do_number(class_dev, udev, sysfs_device);
+ if (retval == 0)
+ goto done;
+
+ retval = do_topology(class_dev, udev, sysfs_device);
+ if (retval == 0)
+ goto done;
+
+ retval = do_replace(class_dev, udev);
+ if (retval == 0)
+ goto done;
+
+ strcpy(udev->name, class_dev->name);
+
+done:
+ /* 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 '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;
}
- dbg_parse("'%s' becomes '%s' - owner = %s, group = %s, mode = %#o",
- dev->kernel_name, udev->name,
- dev->owner, dev->group, dev->mode);
- goto done;
- break;
- case KERNEL_NAME:
- break;
- default:
- dbg_parse("Unknown type of device '%d'", dev->type);
+ strcat(udev->name, name);
+ } else
break;
- }
}
- strcpy(udev->name, class_dev->name);
-done:
/* mode was never set above */
if (!udev->mode) {
udev->mode = get_default_mode(class_dev);
udev->owner[0] = 0x00;
udev->group[0] = 0x00;
}
- return retval;
+
+ if (class_dev_parent)
+ sysfs_close_class_device(class_dev_parent);
+
+ return 0;
}
int namedev_name_device(struct sysfs_class_device *class_dev, struct udevice *dev)
~ianmdlvl / elogind.git / blobdiff