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Diffstat (limited to 'drivers/staging/irda/net/irias_object.c')
-rw-r--r--drivers/staging/irda/net/irias_object.c555
1 files changed, 0 insertions, 555 deletions
diff --git a/drivers/staging/irda/net/irias_object.c b/drivers/staging/irda/net/irias_object.c
deleted file mode 100644
index 53b86d0e1630..000000000000
--- a/drivers/staging/irda/net/irias_object.c
+++ /dev/null
@@ -1,555 +0,0 @@
-/*********************************************************************
- *
- * Filename: irias_object.c
- * Version: 0.3
- * Description: IAS object database and functions
- * Status: Experimental.
- * Author: Dag Brattli <dagb@cs.uit.no>
- * Created at: Thu Oct 1 22:50:04 1998
- * Modified at: Wed Dec 15 11:23:16 1999
- * Modified by: Dag Brattli <dagb@cs.uit.no>
- *
- * Copyright (c) 1998-1999 Dag Brattli, All Rights Reserved.
- *
- * 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; either version 2 of
- * the License, or (at your option) any later version.
- *
- * Neither Dag Brattli nor University of Tromsø admit liability nor
- * provide warranty for any of this software. This material is
- * provided "AS-IS" and at no charge.
- *
- ********************************************************************/
-
-#include <linux/slab.h>
-#include <linux/string.h>
-#include <linux/socket.h>
-#include <linux/module.h>
-
-#include <net/irda/irda.h>
-#include <net/irda/irias_object.h>
-
-hashbin_t *irias_objects;
-
-/*
- * Used when a missing value needs to be returned
- */
-struct ias_value irias_missing = { IAS_MISSING, 0, 0, 0, {0}};
-
-
-/*
- * Function ias_new_object (name, id)
- *
- * Create a new IAS object
- *
- */
-struct ias_object *irias_new_object( char *name, int id)
-{
- struct ias_object *obj;
-
- obj = kzalloc(sizeof(struct ias_object), GFP_ATOMIC);
- if (obj == NULL) {
- net_warn_ratelimited("%s(), Unable to allocate object!\n",
- __func__);
- return NULL;
- }
-
- obj->magic = IAS_OBJECT_MAGIC;
- obj->name = kstrndup(name, IAS_MAX_CLASSNAME, GFP_ATOMIC);
- if (!obj->name) {
- net_warn_ratelimited("%s(), Unable to allocate name!\n",
- __func__);
- kfree(obj);
- return NULL;
- }
- obj->id = id;
-
- /* Locking notes : the attrib spinlock has lower precendence
- * than the objects spinlock. Never grap the objects spinlock
- * while holding any attrib spinlock (risk of deadlock). Jean II */
- obj->attribs = hashbin_new(HB_LOCK);
-
- if (obj->attribs == NULL) {
- net_warn_ratelimited("%s(), Unable to allocate attribs!\n",
- __func__);
- kfree(obj->name);
- kfree(obj);
- return NULL;
- }
-
- return obj;
-}
-EXPORT_SYMBOL(irias_new_object);
-
-/*
- * Function irias_delete_attrib (attrib)
- *
- * Delete given attribute and deallocate all its memory
- *
- */
-static void __irias_delete_attrib(struct ias_attrib *attrib)
-{
- IRDA_ASSERT(attrib != NULL, return;);
- IRDA_ASSERT(attrib->magic == IAS_ATTRIB_MAGIC, return;);
-
- kfree(attrib->name);
-
- irias_delete_value(attrib->value);
- attrib->magic = ~IAS_ATTRIB_MAGIC;
-
- kfree(attrib);
-}
-
-void __irias_delete_object(struct ias_object *obj)
-{
- IRDA_ASSERT(obj != NULL, return;);
- IRDA_ASSERT(obj->magic == IAS_OBJECT_MAGIC, return;);
-
- kfree(obj->name);
-
- hashbin_delete(obj->attribs, (FREE_FUNC) __irias_delete_attrib);
-
- obj->magic = ~IAS_OBJECT_MAGIC;
-
- kfree(obj);
-}
-
-/*
- * Function irias_delete_object (obj)
- *
- * Remove object from hashbin and deallocate all attributes associated with
- * with this object and the object itself
- *
- */
-int irias_delete_object(struct ias_object *obj)
-{
- struct ias_object *node;
-
- IRDA_ASSERT(obj != NULL, return -1;);
- IRDA_ASSERT(obj->magic == IAS_OBJECT_MAGIC, return -1;);
-
- /* Remove from list */
- node = hashbin_remove_this(irias_objects, (irda_queue_t *) obj);
- if (!node)
- pr_debug("%s(), object already removed!\n",
- __func__);
-
- /* Destroy */
- __irias_delete_object(obj);
-
- return 0;
-}
-EXPORT_SYMBOL(irias_delete_object);
-
-/*
- * Function irias_delete_attrib (obj)
- *
- * Remove attribute from hashbin and, if it was the last attribute of
- * the object, remove the object as well.
- *
- */
-int irias_delete_attrib(struct ias_object *obj, struct ias_attrib *attrib,
- int cleanobject)
-{
- struct ias_attrib *node;
-
- IRDA_ASSERT(obj != NULL, return -1;);
- IRDA_ASSERT(obj->magic == IAS_OBJECT_MAGIC, return -1;);
- IRDA_ASSERT(attrib != NULL, return -1;);
-
- /* Remove attribute from object */
- node = hashbin_remove_this(obj->attribs, (irda_queue_t *) attrib);
- if (!node)
- return 0; /* Already removed or non-existent */
-
- /* Deallocate attribute */
- __irias_delete_attrib(node);
-
- /* Check if object has still some attributes, destroy it if none.
- * At first glance, this look dangerous, as the kernel reference
- * various IAS objects. However, we only use this function on
- * user attributes, not kernel attributes, so there is no risk
- * of deleting a kernel object this way. Jean II */
- node = (struct ias_attrib *) hashbin_get_first(obj->attribs);
- if (cleanobject && !node)
- irias_delete_object(obj);
-
- return 0;
-}
-
-/*
- * Function irias_insert_object (obj)
- *
- * Insert an object into the LM-IAS database
- *
- */
-void irias_insert_object(struct ias_object *obj)
-{
- IRDA_ASSERT(obj != NULL, return;);
- IRDA_ASSERT(obj->magic == IAS_OBJECT_MAGIC, return;);
-
- hashbin_insert(irias_objects, (irda_queue_t *) obj, 0, obj->name);
-}
-EXPORT_SYMBOL(irias_insert_object);
-
-/*
- * Function irias_find_object (name)
- *
- * Find object with given name
- *
- */
-struct ias_object *irias_find_object(char *name)
-{
- IRDA_ASSERT(name != NULL, return NULL;);
-
- /* Unsafe (locking), object might change */
- return hashbin_lock_find(irias_objects, 0, name);
-}
-EXPORT_SYMBOL(irias_find_object);
-
-/*
- * Function irias_find_attrib (obj, name)
- *
- * Find named attribute in object
- *
- */
-struct ias_attrib *irias_find_attrib(struct ias_object *obj, char *name)
-{
- struct ias_attrib *attrib;
-
- IRDA_ASSERT(obj != NULL, return NULL;);
- IRDA_ASSERT(obj->magic == IAS_OBJECT_MAGIC, return NULL;);
- IRDA_ASSERT(name != NULL, return NULL;);
-
- attrib = hashbin_lock_find(obj->attribs, 0, name);
- if (attrib == NULL)
- return NULL;
-
- /* Unsafe (locking), attrib might change */
- return attrib;
-}
-
-/*
- * Function irias_add_attribute (obj, attrib)
- *
- * Add attribute to object
- *
- */
-static void irias_add_attrib(struct ias_object *obj, struct ias_attrib *attrib,
- int owner)
-{
- IRDA_ASSERT(obj != NULL, return;);
- IRDA_ASSERT(obj->magic == IAS_OBJECT_MAGIC, return;);
-
- IRDA_ASSERT(attrib != NULL, return;);
- IRDA_ASSERT(attrib->magic == IAS_ATTRIB_MAGIC, return;);
-
- /* Set if attrib is owned by kernel or user space */
- attrib->value->owner = owner;
-
- hashbin_insert(obj->attribs, (irda_queue_t *) attrib, 0, attrib->name);
-}
-
-/*
- * Function irias_object_change_attribute (obj_name, attrib_name, new_value)
- *
- * Change the value of an objects attribute.
- *
- */
-int irias_object_change_attribute(char *obj_name, char *attrib_name,
- struct ias_value *new_value)
-{
- struct ias_object *obj;
- struct ias_attrib *attrib;
- unsigned long flags;
-
- /* Find object */
- obj = hashbin_lock_find(irias_objects, 0, obj_name);
- if (obj == NULL) {
- net_warn_ratelimited("%s: Unable to find object: %s\n",
- __func__, obj_name);
- return -1;
- }
-
- /* Slightly unsafe (obj might get removed under us) */
- spin_lock_irqsave(&obj->attribs->hb_spinlock, flags);
-
- /* Find attribute */
- attrib = hashbin_find(obj->attribs, 0, attrib_name);
- if (attrib == NULL) {
- net_warn_ratelimited("%s: Unable to find attribute: %s\n",
- __func__, attrib_name);
- spin_unlock_irqrestore(&obj->attribs->hb_spinlock, flags);
- return -1;
- }
-
- if ( attrib->value->type != new_value->type) {
- pr_debug("%s(), changing value type not allowed!\n",
- __func__);
- spin_unlock_irqrestore(&obj->attribs->hb_spinlock, flags);
- return -1;
- }
-
- /* Delete old value */
- irias_delete_value(attrib->value);
-
- /* Insert new value */
- attrib->value = new_value;
-
- /* Success */
- spin_unlock_irqrestore(&obj->attribs->hb_spinlock, flags);
- return 0;
-}
-EXPORT_SYMBOL(irias_object_change_attribute);
-
-/*
- * Function irias_object_add_integer_attrib (obj, name, value)
- *
- * Add an integer attribute to an LM-IAS object
- *
- */
-void irias_add_integer_attrib(struct ias_object *obj, char *name, int value,
- int owner)
-{
- struct ias_attrib *attrib;
-
- IRDA_ASSERT(obj != NULL, return;);
- IRDA_ASSERT(obj->magic == IAS_OBJECT_MAGIC, return;);
- IRDA_ASSERT(name != NULL, return;);
-
- attrib = kzalloc(sizeof(struct ias_attrib), GFP_ATOMIC);
- if (attrib == NULL) {
- net_warn_ratelimited("%s: Unable to allocate attribute!\n",
- __func__);
- return;
- }
-
- attrib->magic = IAS_ATTRIB_MAGIC;
- attrib->name = kstrndup(name, IAS_MAX_ATTRIBNAME, GFP_ATOMIC);
-
- /* Insert value */
- attrib->value = irias_new_integer_value(value);
- if (!attrib->name || !attrib->value) {
- net_warn_ratelimited("%s: Unable to allocate attribute!\n",
- __func__);
- if (attrib->value)
- irias_delete_value(attrib->value);
- kfree(attrib->name);
- kfree(attrib);
- return;
- }
-
- irias_add_attrib(obj, attrib, owner);
-}
-EXPORT_SYMBOL(irias_add_integer_attrib);
-
- /*
- * Function irias_add_octseq_attrib (obj, name, octet_seq, len)
- *
- * Add a octet sequence attribute to an LM-IAS object
- *
- */
-
-void irias_add_octseq_attrib(struct ias_object *obj, char *name, __u8 *octets,
- int len, int owner)
-{
- struct ias_attrib *attrib;
-
- IRDA_ASSERT(obj != NULL, return;);
- IRDA_ASSERT(obj->magic == IAS_OBJECT_MAGIC, return;);
-
- IRDA_ASSERT(name != NULL, return;);
- IRDA_ASSERT(octets != NULL, return;);
-
- attrib = kzalloc(sizeof(struct ias_attrib), GFP_ATOMIC);
- if (attrib == NULL) {
- net_warn_ratelimited("%s: Unable to allocate attribute!\n",
- __func__);
- return;
- }
-
- attrib->magic = IAS_ATTRIB_MAGIC;
- attrib->name = kstrndup(name, IAS_MAX_ATTRIBNAME, GFP_ATOMIC);
-
- attrib->value = irias_new_octseq_value( octets, len);
- if (!attrib->name || !attrib->value) {
- net_warn_ratelimited("%s: Unable to allocate attribute!\n",
- __func__);
- if (attrib->value)
- irias_delete_value(attrib->value);
- kfree(attrib->name);
- kfree(attrib);
- return;
- }
-
- irias_add_attrib(obj, attrib, owner);
-}
-EXPORT_SYMBOL(irias_add_octseq_attrib);
-
-/*
- * Function irias_object_add_string_attrib (obj, string)
- *
- * Add a string attribute to an LM-IAS object
- *
- */
-void irias_add_string_attrib(struct ias_object *obj, char *name, char *value,
- int owner)
-{
- struct ias_attrib *attrib;
-
- IRDA_ASSERT(obj != NULL, return;);
- IRDA_ASSERT(obj->magic == IAS_OBJECT_MAGIC, return;);
-
- IRDA_ASSERT(name != NULL, return;);
- IRDA_ASSERT(value != NULL, return;);
-
- attrib = kzalloc(sizeof( struct ias_attrib), GFP_ATOMIC);
- if (attrib == NULL) {
- net_warn_ratelimited("%s: Unable to allocate attribute!\n",
- __func__);
- return;
- }
-
- attrib->magic = IAS_ATTRIB_MAGIC;
- attrib->name = kstrndup(name, IAS_MAX_ATTRIBNAME, GFP_ATOMIC);
-
- attrib->value = irias_new_string_value(value);
- if (!attrib->name || !attrib->value) {
- net_warn_ratelimited("%s: Unable to allocate attribute!\n",
- __func__);
- if (attrib->value)
- irias_delete_value(attrib->value);
- kfree(attrib->name);
- kfree(attrib);
- return;
- }
-
- irias_add_attrib(obj, attrib, owner);
-}
-EXPORT_SYMBOL(irias_add_string_attrib);
-
-/*
- * Function irias_new_integer_value (integer)
- *
- * Create new IAS integer value
- *
- */
-struct ias_value *irias_new_integer_value(int integer)
-{
- struct ias_value *value;
-
- value = kzalloc(sizeof(struct ias_value), GFP_ATOMIC);
- if (value == NULL)
- return NULL;
-
- value->type = IAS_INTEGER;
- value->len = 4;
- value->t.integer = integer;
-
- return value;
-}
-EXPORT_SYMBOL(irias_new_integer_value);
-
-/*
- * Function irias_new_string_value (string)
- *
- * Create new IAS string value
- *
- * Per IrLMP 1.1, 4.3.3.2, strings are up to 256 chars - Jean II
- */
-struct ias_value *irias_new_string_value(char *string)
-{
- struct ias_value *value;
-
- value = kzalloc(sizeof(struct ias_value), GFP_ATOMIC);
- if (value == NULL)
- return NULL;
-
- value->type = IAS_STRING;
- value->charset = CS_ASCII;
- value->t.string = kstrndup(string, IAS_MAX_STRING, GFP_ATOMIC);
- if (!value->t.string) {
- net_warn_ratelimited("%s: Unable to kmalloc!\n", __func__);
- kfree(value);
- return NULL;
- }
-
- value->len = strlen(value->t.string);
-
- return value;
-}
-
-/*
- * Function irias_new_octseq_value (octets, len)
- *
- * Create new IAS octet-sequence value
- *
- * Per IrLMP 1.1, 4.3.3.2, octet-sequence are up to 1024 bytes - Jean II
- */
-struct ias_value *irias_new_octseq_value(__u8 *octseq , int len)
-{
- struct ias_value *value;
-
- value = kzalloc(sizeof(struct ias_value), GFP_ATOMIC);
- if (value == NULL)
- return NULL;
-
- value->type = IAS_OCT_SEQ;
- /* Check length */
- if(len > IAS_MAX_OCTET_STRING)
- len = IAS_MAX_OCTET_STRING;
- value->len = len;
-
- value->t.oct_seq = kmemdup(octseq, len, GFP_ATOMIC);
- if (value->t.oct_seq == NULL){
- net_warn_ratelimited("%s: Unable to kmalloc!\n", __func__);
- kfree(value);
- return NULL;
- }
- return value;
-}
-
-struct ias_value *irias_new_missing_value(void)
-{
- struct ias_value *value;
-
- value = kzalloc(sizeof(struct ias_value), GFP_ATOMIC);
- if (value == NULL)
- return NULL;
-
- value->type = IAS_MISSING;
-
- return value;
-}
-
-/*
- * Function irias_delete_value (value)
- *
- * Delete IAS value
- *
- */
-void irias_delete_value(struct ias_value *value)
-{
- IRDA_ASSERT(value != NULL, return;);
-
- switch (value->type) {
- case IAS_INTEGER: /* Fallthrough */
- case IAS_MISSING:
- /* No need to deallocate */
- break;
- case IAS_STRING:
- /* Deallocate string */
- kfree(value->t.string);
- break;
- case IAS_OCT_SEQ:
- /* Deallocate byte stream */
- kfree(value->t.oct_seq);
- break;
- default:
- pr_debug("%s(), Unknown value type!\n", __func__);
- break;
- }
- kfree(value);
-}
-EXPORT_SYMBOL(irias_delete_value);
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