+/*
+ * udevdb.c
+ *
+ * Userspace devfs
+ *
+ * Copyright (C) 2003 Greg Kroah-Hartman <greg@kroah.com>
+ * Copyright (C) 2003 IBM Corp.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
/*
* udev database library
*/
#include "namedev.h"
#include "udevdb.h"
#include "tdb/tdb.h"
+#include "libsysfs/libsysfs.h"
static TDB_CONTEXT *udevdb;
-/**
- * busdb_record - bus and id are keys to look up name of device
- */
-struct busdb_record {
- char name[NAME_SIZE];
-};
-
-/**
- * classdb_record - class name and class device name used as keys to find
- * device name.
- */
-struct classdb_record {
- char name[NAME_SIZE];
+struct sysfsdb_record {
+ char name[PATH_SIZE];
};
/**
* namedb_record - device name is key, remaining udevice info stored here.
*/
struct namedb_record {
- char sysfs_path[PATH_SIZE];
+ char sysfs_dev_path[PATH_SIZE];
char class_dev_name[NAME_SIZE];
char class_name[NAME_SIZE];
- char bus[BUS_SIZE];
char id[ID_SIZE];
- char driver[NAME_SIZE];
char type;
int major;
int minor;
- int mode;
+ mode_t mode;
};
/**
return 0;
}
-/**
- * busdb_fetch
- */
-static struct busdb_record *busdb_fetch(const char *bus, const char *id)
+static struct sysfsdb_record *sysfsdb_fetch(const char *path)
{
TDB_DATA key, data;
- char keystr[BUS_SIZE+ID_SIZE+2];
- struct busdb_record *rec = NULL;
+ char keystr[PATH_SIZE+2];
+ struct sysfsdb_record *rec = NULL;
- if (bus == NULL || id == NULL)
- return NULL;
- if (strlen(bus) >= BUS_SIZE || strlen(id) >= ID_SIZE)
+ if (strlen(path) >= PATH_SIZE)
return NULL;
- memset(keystr, 0, (BUS_SIZE+ID_SIZE+2));
- strcpy(keystr, bus);
- strcat(keystr, UDEVDB_DEL);
- strcat(keystr, id);
-
- key.dptr = (void *)keystr;
- key.dsize = strlen(keystr) + 1;
-
- data = tdb_fetch(udevdb, key);
- if (data.dptr == NULL || data.dsize == 0)
- return NULL;
-
- rec = (struct busdb_record *)malloc(sizeof(struct busdb_record));
- if (rec == NULL) {
- free(data.dptr);
- return NULL;
- }
-
- memcpy(rec, data.dptr, sizeof(struct busdb_record));
- free(data.dptr);
-
- return rec;
-}
-
-/**
- * classdb_fetch
- */
-static struct classdb_record *classdb_fetch(const char *cls,
- const char *cls_dev)
-{
- TDB_DATA key, data;
- char keystr[NAME_SIZE+NAME_SIZE+2];
- struct classdb_record *rec = NULL;
-
- if (cls == NULL || cls_dev == NULL)
- return NULL;
- if (strlen(cls) >= NAME_SIZE || strlen(cls_dev) >= NAME_SIZE)
- return NULL;
+ memset(keystr, 0, sizeof(keystr));
+ strcpy(keystr, path);
- memset(keystr, 0, (NAME_SIZE+NAME_SIZE+2));
- strcpy(keystr, cls);
- strcat(keystr, UDEVDB_DEL);
- strcat(keystr, cls_dev);
+ dbg("keystr = %s", keystr);
key.dptr = (void *)keystr;
key.dsize = strlen(keystr) + 1;
data = tdb_fetch(udevdb, key);
- if (data.dptr == NULL || data.dsize == 0)
+ if (data.dptr == NULL || data.dsize == 0) {
+ dbg("tdb_fetch did not work :(");
return NULL;
+ }
- rec = (struct classdb_record *)malloc(sizeof(struct classdb_record));
+ rec = (struct sysfsdb_record *)malloc(sizeof(struct sysfsdb_record));
if (rec == NULL) {
free(data.dptr);
return NULL;
}
- memcpy(rec, data.dptr, sizeof(struct classdb_record));
+ memcpy(rec, data.dptr, sizeof(struct sysfsdb_record));
free(data.dptr);
return rec;
return nrec;
}
-/**
- * busdb_store
- */
-static int busdb_store(const struct udevice *dev)
+static int sysfs_store(const char *path, const struct udevice *dev)
{
TDB_DATA key, data;
- char keystr[BUS_SIZE+ID_SIZE+2];
- struct busdb_record rec;
+ char keystr[PATH_SIZE+2];
+ struct sysfsdb_record rec;
int retval = 0;
if (dev == NULL)
- return -1;
+ return -ENODEV;
- memset(keystr, 0, (BUS_SIZE+ID_SIZE+2));
- strcpy(keystr, dev->bus_name);
- strcat(keystr, UDEVDB_DEL);
- strcat(keystr, dev->bus_id);
-
- key.dptr = (void *)keystr;
- key.dsize = strlen(keystr) + 1;
-
- strcpy(rec.name, dev->name);
-
- data.dptr = (void *) &rec;
- data.dsize = sizeof(rec);
-
- retval = tdb_store(udevdb, key, data, TDB_REPLACE);
- return retval;
-}
-
-/**
- * classdb_store
- */
-static int classdb_store(const struct udevice *dev)
-{
- TDB_DATA key, data;
- char keystr[NAME_SIZE+NAME_SIZE+2];
- struct classdb_record rec;
- int retval = 0;
-
- if (dev == NULL)
- return -1;
-
- memset(keystr, 0, (NAME_SIZE+NAME_SIZE+2));
- strcpy(keystr, dev->class_name);
- strcat(keystr, UDEVDB_DEL);
- strcat(keystr, dev->class_dev_name);
+ memset(keystr, 0, sizeof(keystr));
+ strcpy(keystr, path);
key.dptr = (void *)keystr;
key.dsize = strlen(keystr) + 1;
key.dptr = (void *)keystr;
key.dsize = strlen(keystr) + 1;
- strcpy(rec.sysfs_path, dev->sysfs_path);
- strcpy(rec.bus, dev->bus_name);
+ strcpy(rec.sysfs_dev_path, dev->sysfs_dev_path);
strcpy(rec.id, dev->bus_id);
strcpy(rec.class_dev_name, dev->class_dev_name);
strcpy(rec.class_name, dev->class_name);
- strcpy(rec.driver, dev->driver);
rec.type = dev->type;
rec.major = dev->major;
rec.minor = dev->minor;
return retval;
}
-/**
- * busdb_delete
- */
-static int busdb_delete(const char *bus, const char *id)
-{
- TDB_DATA key;
- char keystr[BUS_SIZE+ID_SIZE+2];
- int retval = 0;
-
- if (bus == NULL || id == NULL)
- return -1;
- if (strlen(bus) >= BUS_SIZE || strlen(id) >= ID_SIZE)
- return -1;
-
- memset(keystr, 0, (BUS_SIZE+ID_SIZE+2));
- strcpy(keystr, bus);
- strcat(keystr, UDEVDB_DEL);
- strcat(keystr, id);
-
- key.dptr = (void *)keystr;
- key.dsize = strlen(keystr) + 1;
-
- retval = tdb_delete(udevdb, key);
- return retval;
-}
-
-/**
- * classdb_delete
- */
-static int classdb_delete(const char *cls, const char *cls_dev)
-{
- TDB_DATA key;
- char keystr[NAME_SIZE+NAME_SIZE+2];
- int retval = 0;
-
- if (cls == NULL || cls_dev == NULL)
- return -1;
- if (strlen(cls) >= NAME_SIZE || strlen(cls_dev) >= NAME_SIZE)
- return -1;
-
- memset(keystr, 0, (NAME_SIZE+NAME_SIZE+2));
- strcpy(keystr, cls);
- strcat(keystr, UDEVDB_DEL);
- strcat(keystr, cls_dev);
-
- key.dptr = (void *)keystr;
- key.dsize = strlen(keystr) + 1;
-
- retval = tdb_delete(udevdb, key);
- return retval;
-}
-
/**
* namedb_delete
*/
return retval;
}
+static int sysfs_delete(const char *path)
+{
+ TDB_DATA key;
+ char keystr[PATH_SIZE];
+
+ memset(keystr, 0, sizeof(keystr));
+ strcpy(keystr, path);
+
+ key.dptr = keystr;
+ key.dsize = strlen(keystr) + 1;
+
+ return tdb_delete(udevdb, key);
+}
+
/**
* udevdb_delete_udevice
*/
if (nrec == NULL)
return -1;
- busdb_delete(nrec->bus, nrec->id);
- classdb_delete(nrec->class_name, nrec->class_dev_name);
namedb_delete(name);
free(nrec);
}
/**
- * udevdb_add_udevice: adds udevice to database
+ * udevdb_add_device: adds class device to database
*/
-int udevdb_add_udevice(const struct udevice *dev)
+int udevdb_add_device(const char *device, const struct sysfs_class_device *class_dev, const char *name, char type, int major, int minor, int mode)
{
- if (dev == NULL)
- return -1;
+ struct udevice dbdev;
- if ((busdb_store(dev)) != 0)
- return -1;
- if ((classdb_store(dev)) != 0)
- return -1;
- if ((namedb_store(dev)) != 0)
+ if (class_dev == NULL)
+ return -ENODEV;
+
+ memset(&dbdev, 0, sizeof(dbdev));
+ strncpy(dbdev.name, name, NAME_SIZE);
+ if (class_dev->sysdevice) {
+ strncpy(dbdev.sysfs_dev_path, class_dev->sysdevice->directory->path, PATH_SIZE);
+ strncpy(dbdev.bus_id, class_dev->sysdevice->bus_id, ID_SIZE);
+ }
+ strncpy(dbdev.class_dev_name, class_dev->name, NAME_SIZE);
+// if ((sysfs_get_name_from_path(subsystem, dbdev.class_name, NAME_SIZE)) != 0)
+// strcpy(dbdev.class_name, "unknown");
+ dbdev.type = type;
+ dbdev.major = major;
+ dbdev.minor = minor;
+ dbdev.mode = mode;
+
+ if ((sysfs_store(device, &dbdev)) != 0)
return -1;
+// if ((namedb_store(&dbdev)) != 0)
+// return -1;
return 0;
}
}
strcpy(dev->name, name);
- strcpy(dev->sysfs_path, nrec->sysfs_path);
+ strcpy(dev->sysfs_dev_path, nrec->sysfs_dev_path);
strcpy(dev->class_dev_name, nrec->class_dev_name);
strcpy(dev->class_name, nrec->class_name);
- strcpy(dev->bus_name, nrec->bus);
strcpy(dev->bus_id, nrec->id);
dev->type = nrec->type;
dev->major = nrec->major;
return dev;
}
-/**
- * udevdb_get_device_by_bus
- */
-struct udevice *udevdb_get_udevice_by_bus(const char *bus, const char *id)
+int udevdb_get_dev(const char *path, char *name, size_t name_size)
{
- struct busdb_record *brec = NULL;
- struct udevice *dev = NULL;
+ struct sysfsdb_record *rec = NULL;
- if (bus == NULL || id == NULL)
- return NULL;
+ if ((path == NULL) || (name == NULL) || (name_size < 1))
+ return -EINVAL;
- brec = busdb_fetch(bus, id);
- if (brec == NULL)
- return NULL;
+ rec = sysfsdb_fetch(path);
+ if (rec == NULL)
+ return -ENODEV;
- dev = udevdb_get_udevice(brec->name);
- free(brec);
+ if (strlen(rec->name) >= name_size)
+ return -EINVAL;
- return dev;
+ strncpy(name, rec->name, name_size);
+ return 0;
}
-/**
- * udevdb_get_udevice_by_class
- */
-struct udevice *udevdb_get_udevice_by_class(const char *cls,
- const char *cls_dev)
+int udevdb_delete_dev(const char *path)
{
- struct classdb_record *crec = NULL;
- struct udevice *dev = NULL;
-
- if (cls == NULL || cls_dev == NULL)
- return NULL;
-
- crec = classdb_fetch(cls, cls_dev);
- if (crec == NULL)
- return NULL;
-
- dev = udevdb_get_udevice(crec->name);
- free(crec);
+ if (path == NULL)
+ return -EINVAL;
- return dev;
+ return sysfs_delete(path);
}
/**
~ianmdlvl / elogind.git / blobdiff