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-rw-r--r--udev.c21
-rw-r--r--udevdb.c177
-rw-r--r--udevdb.h10
3 files changed, 63 insertions, 145 deletions
diff --git a/udev.c b/udev.c
index 74572625..6e7ac251 100644
--- a/udev.c
+++ b/udev.c
@@ -31,6 +31,7 @@
#include "udev.h"
#include "udev_version.h"
#include "namedev.h"
+#include "udevdb.h"
#include "libsysfs/libsysfs.h"
@@ -91,17 +92,27 @@ int main(int argc, char *argv[])
goto exit;
}
+ /* initialize udev database */
+ retval = udevdb_init(UDEVDB_DEFAULT);
+ if (retval != 0) {
+ dbg("Unable to initialize database.");
+ goto exit;
+ }
+
/* initialize the naming deamon */
namedev_init();
if (strcmp(action, "add") == 0)
- return udev_add_device(device, argv[1]);
+ retval = udev_add_device(device, argv[1]);
- if (strcmp(action, "remove") == 0)
- return udev_remove_device(device, argv[1]);
+ else if (strcmp(action, "remove") == 0)
+ retval = udev_remove_device(device, argv[1]);
- dbg("Unknown action: %s", action);
- retval = -EINVAL;
+ else {
+ dbg("Unknown action: %s", action);
+ retval = -EINVAL;
+ }
+ udevdb_exit();
exit:
return retval;
diff --git a/udevdb.c b/udevdb.c
index b976fd50..c2e90be3 100644
--- a/udevdb.c
+++ b/udevdb.c
@@ -12,9 +12,7 @@
#include "udevdb.h"
#include "tdb/tdb.h"
-static TDB_CONTEXT *busdb;
-static TDB_CONTEXT *classdb;
-static TDB_CONTEXT *namedb;
+static TDB_CONTEXT *udevdb;
/**
* busdb_record - bus and id are keys to look up name of device
@@ -48,67 +46,25 @@ struct namedb_record {
};
/**
- * busdb_close: close busdb database
+ * udevdb_close: close udev database
*/
-static void busdb_close(void)
+static void udevdb_close(void)
{
- if (busdb != NULL) {
- tdb_close(busdb);
- busdb = NULL;
+ if (udevdb != NULL) {
+ tdb_close(udevdb);
+ udevdb = NULL;
}
}
/**
- * classdb_close: close classdb database
+ * udevdb_open: opens udev's database
+ * @method: database can either be in memory - UDEVDB_INTERNAL - or
+ * written to a file with UDEVDB_DEFAULT.
*/
-static void classdb_close(void)
+static int udevdb_open(int method)
{
- if (classdb != NULL) {
- tdb_close(classdb);
- classdb = NULL;
- }
-}
-
-/**
- * namedb_close: close name database
- */
-static void namedb_close(void)
-{
- if (namedb != NULL) {
- tdb_close(namedb);
- namedb = NULL;
- }
-}
-
-/**
- * busdb_open: open busdb's database
- */
-static int busdb_open(void)
-{
- busdb = tdb_open(BUS_DB, 0, 0, O_RDWR | O_CREAT, 0644);
- if (busdb == NULL)
- return -1;
- return 0;
-}
-
-/**
- * classdb_open: open classdb's database
- */
-static int classdb_open(void)
-{
- classdb = tdb_open(CLASS_DB, 0, 0, O_RDWR | O_CREAT, 0644);
- if (classdb == NULL)
- return -1;
- return 0;
-}
-
-/**
- * namedb_open: open name database
- */
-static int namedb_open(void)
-{
- namedb = tdb_open(NAME_DB, 0, 0, O_RDWR | O_CREAT, 0644);
- if (namedb == NULL)
+ udevdb = tdb_open(UDEVDB, 0, method, O_RDWR | O_CREAT, 0644);
+ if (udevdb == NULL)
return -1;
return 0;
}
@@ -127,9 +83,6 @@ static struct busdb_record *busdb_fetch(const char *bus, const char *id)
if (strlen(bus) >= BUS_SIZE || strlen(id) >= ID_SIZE)
return NULL;
- if ((busdb_open()) != 0)
- return NULL;
-
memset(keystr, 0, (BUS_SIZE+ID_SIZE+2));
strcpy(keystr, bus);
strcat(keystr, UDEVDB_DEL);
@@ -138,8 +91,7 @@ static struct busdb_record *busdb_fetch(const char *bus, const char *id)
key.dptr = (void *)keystr;
key.dsize = strlen(keystr) + 1;
- data = tdb_fetch(busdb, key);
- busdb_close();
+ data = tdb_fetch(udevdb, key);
if (data.dptr == NULL || data.dsize == 0)
return NULL;
@@ -170,9 +122,6 @@ static struct classdb_record *classdb_fetch(const char *cls,
if (strlen(cls) >= NAME_SIZE || strlen(cls_dev) >= NAME_SIZE)
return NULL;
- if ((classdb_open()) != 0)
- return NULL;
-
memset(keystr, 0, (NAME_SIZE+NAME_SIZE+2));
strcpy(keystr, cls);
strcat(keystr, UDEVDB_DEL);
@@ -181,8 +130,7 @@ static struct classdb_record *classdb_fetch(const char *cls,
key.dptr = (void *)keystr;
key.dsize = strlen(keystr) + 1;
- data = tdb_fetch(classdb, key);
- classdb_close();
+ data = tdb_fetch(udevdb, key);
if (data.dptr == NULL || data.dsize == 0)
return NULL;
@@ -212,18 +160,13 @@ static struct namedb_record *namedb_fetch(const char *name)
if (strlen(name) >= NAME_SIZE)
return NULL;
- if ((namedb_open()) != 0)
- return NULL;
-
memset(nm_keystr, 0, NAME_SIZE);
strcpy(nm_keystr, name);
key.dptr = (void *)nm_keystr;
key.dsize = strlen(nm_keystr) + 1;
- data = tdb_fetch(namedb, key);
- namedb_close();
-
+ data = tdb_fetch(udevdb, key);
if (data.dptr == NULL || data.dsize == 0)
return NULL;
@@ -252,9 +195,6 @@ static int busdb_store(const struct udevice *dev)
if (dev == NULL)
return -1;
- if ((retval = busdb_open()) != 0)
- return -1;
-
memset(keystr, 0, (BUS_SIZE+ID_SIZE+2));
strcpy(keystr, dev->bus_name);
strcat(keystr, UDEVDB_DEL);
@@ -268,9 +208,7 @@ static int busdb_store(const struct udevice *dev)
data.dptr = (void *) &rec;
data.dsize = sizeof(rec);
- retval = tdb_store(busdb, key, data, TDB_REPLACE);
-
- busdb_close();
+ retval = tdb_store(udevdb, key, data, TDB_REPLACE);
return retval;
}
@@ -287,9 +225,6 @@ static int classdb_store(const struct udevice *dev)
if (dev == NULL)
return -1;
- if ((retval = classdb_open()) != 0)
- return -1;
-
memset(keystr, 0, (NAME_SIZE+NAME_SIZE+2));
strcpy(keystr, dev->class_name);
strcat(keystr, UDEVDB_DEL);
@@ -303,9 +238,7 @@ static int classdb_store(const struct udevice *dev)
data.dptr = (void *) &rec;
data.dsize = sizeof(rec);
- retval = tdb_store(classdb, key, data, TDB_REPLACE);
-
- classdb_close();
+ retval = tdb_store(udevdb, key, data, TDB_REPLACE);
return retval;
}
@@ -322,9 +255,6 @@ static int namedb_store(const struct udevice *dev)
if (dev == NULL)
return -1;
- if ((retval = namedb_open()) != 0)
- return -1;
-
memset(keystr, 0, NAME_SIZE);
strcpy(keystr, dev->name);
@@ -345,9 +275,7 @@ static int namedb_store(const struct udevice *dev)
data.dptr = (void *) &rec;
data.dsize = sizeof(rec);
- retval = tdb_store(namedb, key, data, TDB_REPLACE);
-
- namedb_close();
+ retval = tdb_store(udevdb, key, data, TDB_REPLACE);
return retval;
}
@@ -365,9 +293,6 @@ static int busdb_delete(const char *bus, const char *id)
if (strlen(bus) >= BUS_SIZE || strlen(id) >= ID_SIZE)
return -1;
- if ((busdb_open()) != 0)
- return -1;
-
memset(keystr, 0, (BUS_SIZE+ID_SIZE+2));
strcpy(keystr, bus);
strcat(keystr, UDEVDB_DEL);
@@ -376,9 +301,7 @@ static int busdb_delete(const char *bus, const char *id)
key.dptr = (void *)keystr;
key.dsize = strlen(keystr) + 1;
- retval = tdb_delete(busdb, key);
- busdb_close();
-
+ retval = tdb_delete(udevdb, key);
return retval;
}
@@ -396,9 +319,6 @@ static int classdb_delete(const char *cls, const char *cls_dev)
if (strlen(cls) >= NAME_SIZE || strlen(cls_dev) >= NAME_SIZE)
return -1;
- if ((classdb_open()) != 0)
- return -1;
-
memset(keystr, 0, (NAME_SIZE+NAME_SIZE+2));
strcpy(keystr, cls);
strcat(keystr, UDEVDB_DEL);
@@ -407,9 +327,7 @@ static int classdb_delete(const char *cls, const char *cls_dev)
key.dptr = (void *)keystr;
key.dsize = strlen(keystr) + 1;
- retval = tdb_delete(classdb, key);
- classdb_close();
-
+ retval = tdb_delete(udevdb, key);
return retval;
}
@@ -427,47 +345,13 @@ static int namedb_delete(const char *name)
if (strlen(name) >= NAME_SIZE)
return -1;
- if ((namedb_open()) != 0)
- return -1;
-
- memset(keystr, 0, NAME_SIZE);
- strcpy(keystr, name);
-
- key.dptr = (void *)keystr;
- key.dsize = strlen(keystr) + 1;
-
- retval = tdb_delete(namedb, key);
- namedb_close();
-
- return retval;
-}
-
-/**
- * namedb_exists
- */
-static int namedb_exists(const char *name)
-{
- TDB_DATA key;
- char keystr[NAME_SIZE];
- int retval = 0;
-
- if (name == NULL)
- return retval;
- if (strlen(name) >= NAME_SIZE)
- return retval;
-
- if ((namedb_open()) != 0)
- return retval;
-
memset(keystr, 0, NAME_SIZE);
strcpy(keystr, name);
key.dptr = (void *)keystr;
key.dsize = strlen(keystr) + 1;
- retval = tdb_exists(namedb, key);
- namedb_close();
-
+ retval = tdb_delete(udevdb, key);
return retval;
}
@@ -590,3 +474,22 @@ struct udevice *udevdb_get_udevice_by_class(const char *cls,
return dev;
}
+
+/**
+ * udevdb_exit: closes database
+ */
+void udevdb_exit(void)
+{
+ udevdb_close();
+}
+
+/**
+ * udevdb_init: initializes database
+ */
+int udevdb_init(int init_flag)
+{
+ if (init_flag != UDEVDB_DEFAULT && init_flag != UDEVDB_INTERNAL)
+ return -1;
+
+ return udevdb_open(init_flag);
+}
diff --git a/udevdb.h b/udevdb.h
index fed52bc4..a9ba2f93 100644
--- a/udevdb.h
+++ b/udevdb.h
@@ -7,14 +7,16 @@
#include "namedev.h"
#include "udev.h"
-#define BUS_DB "/home/greg/src/udev/busdb.tdb"
-#define CLASS_DB "/home/greg/src/udev/classdb.tdb"
-#define NAME_DB "/home/greg/src/udev/namedb.tdb"
+#define UDEVDB "/home/greg/src/udev/udevdb.tdb"
#define PATH_SIZE 256
#define UDEVDB_DEL "#"
+/* Udevdb initialization flags */
+#define UDEVDB_DEFAULT 0 /* Defaults database to use file */
+#define UDEVDB_INTERNAL 1 /* Don't store db on disk, use in memory */
+
struct udevice {
char name[NAME_SIZE];
char sysfs_path[PATH_SIZE];
@@ -30,6 +32,8 @@ struct udevice {
};
/* Function Prototypes */
+extern void udevdb_exit(void);
+extern int udevdb_init(int init_flag);
extern int udevdb_delete_udevice(const char *name);
extern int udevdb_add_udevice(const struct udevice *dev);
extern struct udevice *udevdb_get_udevice(const char *name);
generated by cgit 1.2.3-korg (git 2.39.0) at 2024-05-21 15:32:49 +0000