Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) // SPDX-License-Identifier: GPL-2.0+
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3)  * ipmi_devintf.c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5)  * Linux device interface for the IPMI message handler.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7)  * Author: MontaVista Software, Inc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8)  *         Corey Minyard <minyard@mvista.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9)  *         source@mvista.com
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11)  * Copyright 2002 MontaVista Software Inc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) #include <linux/moduleparam.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) #include <linux/errno.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) #include <linux/poll.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) #include <linux/sched.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) #include <linux/spinlock.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) #include <linux/ipmi.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) #include <linux/mutex.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) #include <linux/device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) #include <linux/compat.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) struct ipmi_file_private
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) 	struct ipmi_user     *user;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) 	spinlock_t           recv_msg_lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) 	struct list_head     recv_msgs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) 	struct fasync_struct *fasync_queue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) 	wait_queue_head_t    wait;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) 	struct mutex	     recv_mutex;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) 	int                  default_retries;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) 	unsigned int         default_retry_time_ms;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) static void file_receive_handler(struct ipmi_recv_msg *msg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) 				 void                 *handler_data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) 	struct ipmi_file_private *priv = handler_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) 	int                      was_empty;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) 	unsigned long            flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) 	spin_lock_irqsave(&priv->recv_msg_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) 	was_empty = list_empty(&priv->recv_msgs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) 	list_add_tail(&msg->link, &priv->recv_msgs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) 	spin_unlock_irqrestore(&priv->recv_msg_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) 	if (was_empty) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 		wake_up_interruptible(&priv->wait);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) 		kill_fasync(&priv->fasync_queue, SIGIO, POLL_IN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) static __poll_t ipmi_poll(struct file *file, poll_table *wait)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) 	struct ipmi_file_private *priv = file->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) 	__poll_t             mask = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 	unsigned long            flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) 	poll_wait(file, &priv->wait, wait);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) 	spin_lock_irqsave(&priv->recv_msg_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) 	if (!list_empty(&priv->recv_msgs))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 		mask |= (EPOLLIN | EPOLLRDNORM);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) 	spin_unlock_irqrestore(&priv->recv_msg_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) 	return mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) static int ipmi_fasync(int fd, struct file *file, int on)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) 	struct ipmi_file_private *priv = file->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) 	return fasync_helper(fd, file, on, &priv->fasync_queue);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) static const struct ipmi_user_hndl ipmi_hndlrs =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) 	.ipmi_recv_hndl	= file_receive_handler,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) static int ipmi_open(struct inode *inode, struct file *file)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) 	int                      if_num = iminor(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 	int                      rv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 	struct ipmi_file_private *priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 	priv = kmalloc(sizeof(*priv), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 	if (!priv)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 		return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 	rv = ipmi_create_user(if_num,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) 			      &ipmi_hndlrs,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 			      priv,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 			      &priv->user);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 	if (rv) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 		kfree(priv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 		goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 	file->private_data = priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 	spin_lock_init(&priv->recv_msg_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 	INIT_LIST_HEAD(&priv->recv_msgs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 	init_waitqueue_head(&priv->wait);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 	priv->fasync_queue = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 	mutex_init(&priv->recv_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 	/* Use the low-level defaults. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 	priv->default_retries = -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 	priv->default_retry_time_ms = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 	return rv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) static int ipmi_release(struct inode *inode, struct file *file)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 	struct ipmi_file_private *priv = file->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 	int                      rv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 	struct ipmi_recv_msg *msg, *next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 	rv = ipmi_destroy_user(priv->user);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 	if (rv)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 		return rv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 	list_for_each_entry_safe(msg, next, &priv->recv_msgs, link)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 		ipmi_free_recv_msg(msg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 	kfree(priv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) static int handle_send_req(struct ipmi_user *user,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 			   struct ipmi_req *req,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 			   int             retries,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) 			   unsigned int    retry_time_ms)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 	int              rv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 	struct ipmi_addr addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 	struct kernel_ipmi_msg msg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 	if (req->addr_len > sizeof(struct ipmi_addr))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 	if (copy_from_user(&addr, req->addr, req->addr_len))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 		return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 	msg.netfn = req->msg.netfn;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 	msg.cmd = req->msg.cmd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 	msg.data_len = req->msg.data_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 	msg.data = kmalloc(IPMI_MAX_MSG_LENGTH, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 	if (!msg.data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 		return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 	/* From here out we cannot return, we must jump to "out" for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 	   error exits to free msgdata. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 	rv = ipmi_validate_addr(&addr, req->addr_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 	if (rv)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 		goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 	if (req->msg.data != NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 		if (req->msg.data_len > IPMI_MAX_MSG_LENGTH) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 			rv = -EMSGSIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 			goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 		if (copy_from_user(msg.data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 				   req->msg.data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 				   req->msg.data_len)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 			rv = -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) 			goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 	} else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 		msg.data_len = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 	rv = ipmi_request_settime(user,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 				  &addr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) 				  req->msgid,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 				  &msg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) 				  NULL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 				  0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) 				  retries,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 				  retry_time_ms);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193)  out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 	kfree(msg.data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 	return rv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) static int handle_recv(struct ipmi_file_private *priv,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 			bool trunc, struct ipmi_recv *rsp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 			int (*copyout)(struct ipmi_recv *, void __user *),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 			void __user *to)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 	int              addr_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 	struct list_head *entry;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) 	struct ipmi_recv_msg  *msg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 	unsigned long    flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 	int rv = 0, rv2 = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 	/* We claim a mutex because we don't want two
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 	   users getting something from the queue at a time.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) 	   Since we have to release the spinlock before we can
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 	   copy the data to the user, it's possible another
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) 	   user will grab something from the queue, too.  Then
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) 	   the messages might get out of order if something
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 	   fails and the message gets put back onto the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 	   queue.  This mutex prevents that problem. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 	mutex_lock(&priv->recv_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 	/* Grab the message off the list. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 	spin_lock_irqsave(&priv->recv_msg_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 	if (list_empty(&(priv->recv_msgs))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 		spin_unlock_irqrestore(&priv->recv_msg_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) 		rv = -EAGAIN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) 		goto recv_err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) 	entry = priv->recv_msgs.next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) 	msg = list_entry(entry, struct ipmi_recv_msg, link);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) 	list_del(entry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) 	spin_unlock_irqrestore(&priv->recv_msg_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) 	addr_len = ipmi_addr_length(msg->addr.addr_type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) 	if (rsp->addr_len < addr_len) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) 		rv = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) 		goto recv_putback_on_err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) 	if (copy_to_user(rsp->addr, &msg->addr, addr_len)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) 		rv = -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) 		goto recv_putback_on_err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) 	rsp->addr_len = addr_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) 	rsp->recv_type = msg->recv_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) 	rsp->msgid = msg->msgid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) 	rsp->msg.netfn = msg->msg.netfn;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) 	rsp->msg.cmd = msg->msg.cmd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) 	if (msg->msg.data_len > 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) 		if (rsp->msg.data_len < msg->msg.data_len) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) 			rv2 = -EMSGSIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) 			if (trunc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) 				msg->msg.data_len = rsp->msg.data_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) 			else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) 				goto recv_putback_on_err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) 		if (copy_to_user(rsp->msg.data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) 				 msg->msg.data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) 				 msg->msg.data_len)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) 			rv = -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) 			goto recv_putback_on_err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) 		rsp->msg.data_len = msg->msg.data_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) 	} else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) 		rsp->msg.data_len = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) 	rv = copyout(rsp, to);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) 	if (rv)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) 		goto recv_putback_on_err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) 	mutex_unlock(&priv->recv_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) 	ipmi_free_recv_msg(msg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) 	return rv2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) recv_putback_on_err:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) 	/* If we got an error, put the message back onto
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) 	   the head of the queue. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) 	spin_lock_irqsave(&priv->recv_msg_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) 	list_add(entry, &priv->recv_msgs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) 	spin_unlock_irqrestore(&priv->recv_msg_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) recv_err:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) 	mutex_unlock(&priv->recv_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) 	return rv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) static int copyout_recv(struct ipmi_recv *rsp, void __user *to)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) 	return copy_to_user(to, rsp, sizeof(struct ipmi_recv)) ? -EFAULT : 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) static long ipmi_ioctl(struct file   *file,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) 		       unsigned int  cmd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) 		       unsigned long data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) 	int                      rv = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) 	struct ipmi_file_private *priv = file->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) 	void __user *arg = (void __user *)data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) 	switch (cmd) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) 	{
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) 	case IPMICTL_SEND_COMMAND:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) 	{
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) 		struct ipmi_req req;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) 		int retries;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) 		unsigned int retry_time_ms;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) 		if (copy_from_user(&req, arg, sizeof(req))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) 			rv = -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) 		mutex_lock(&priv->recv_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) 		retries = priv->default_retries;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) 		retry_time_ms = priv->default_retry_time_ms;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) 		mutex_unlock(&priv->recv_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) 		rv = handle_send_req(priv->user, &req, retries, retry_time_ms);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) 	case IPMICTL_SEND_COMMAND_SETTIME:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) 	{
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) 		struct ipmi_req_settime req;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) 		if (copy_from_user(&req, arg, sizeof(req))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) 			rv = -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) 		rv = handle_send_req(priv->user,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) 				     &req.req,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) 				     req.retries,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) 				     req.retry_time_ms);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) 	case IPMICTL_RECEIVE_MSG:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) 	case IPMICTL_RECEIVE_MSG_TRUNC:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) 	{
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) 		struct ipmi_recv      rsp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) 		if (copy_from_user(&rsp, arg, sizeof(rsp)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) 			rv = -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) 		else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) 			rv = handle_recv(priv, cmd == IPMICTL_RECEIVE_MSG_TRUNC,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) 					 &rsp, copyout_recv, arg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) 	case IPMICTL_REGISTER_FOR_CMD:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) 	{
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) 		struct ipmi_cmdspec val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) 		if (copy_from_user(&val, arg, sizeof(val))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) 			rv = -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) 		rv = ipmi_register_for_cmd(priv->user, val.netfn, val.cmd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) 					   IPMI_CHAN_ALL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) 	case IPMICTL_UNREGISTER_FOR_CMD:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) 	{
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) 		struct ipmi_cmdspec   val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) 		if (copy_from_user(&val, arg, sizeof(val))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) 			rv = -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) 		rv = ipmi_unregister_for_cmd(priv->user, val.netfn, val.cmd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) 					     IPMI_CHAN_ALL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) 	case IPMICTL_REGISTER_FOR_CMD_CHANS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) 	{
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) 		struct ipmi_cmdspec_chans val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) 		if (copy_from_user(&val, arg, sizeof(val))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) 			rv = -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) 		rv = ipmi_register_for_cmd(priv->user, val.netfn, val.cmd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) 					   val.chans);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) 	case IPMICTL_UNREGISTER_FOR_CMD_CHANS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) 	{
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) 		struct ipmi_cmdspec_chans val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) 		if (copy_from_user(&val, arg, sizeof(val))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) 			rv = -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) 		rv = ipmi_unregister_for_cmd(priv->user, val.netfn, val.cmd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) 					     val.chans);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) 	case IPMICTL_SET_GETS_EVENTS_CMD:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) 	{
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) 		int val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) 		if (copy_from_user(&val, arg, sizeof(val))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) 			rv = -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) 		rv = ipmi_set_gets_events(priv->user, val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) 	/* The next four are legacy, not per-channel. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) 	case IPMICTL_SET_MY_ADDRESS_CMD:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) 	{
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) 		unsigned int val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) 		if (copy_from_user(&val, arg, sizeof(val))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) 			rv = -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) 		rv = ipmi_set_my_address(priv->user, 0, val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) 	case IPMICTL_GET_MY_ADDRESS_CMD:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) 	{
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) 		unsigned int  val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) 		unsigned char rval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) 		rv = ipmi_get_my_address(priv->user, 0, &rval);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) 		if (rv)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) 		val = rval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) 		if (copy_to_user(arg, &val, sizeof(val))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) 			rv = -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) 	case IPMICTL_SET_MY_LUN_CMD:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) 	{
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) 		unsigned int val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) 		if (copy_from_user(&val, arg, sizeof(val))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) 			rv = -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) 		rv = ipmi_set_my_LUN(priv->user, 0, val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) 	case IPMICTL_GET_MY_LUN_CMD:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) 	{
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) 		unsigned int  val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) 		unsigned char rval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) 		rv = ipmi_get_my_LUN(priv->user, 0, &rval);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) 		if (rv)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) 		val = rval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) 		if (copy_to_user(arg, &val, sizeof(val))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) 			rv = -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) 	case IPMICTL_SET_MY_CHANNEL_ADDRESS_CMD:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) 	{
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) 		struct ipmi_channel_lun_address_set val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) 		if (copy_from_user(&val, arg, sizeof(val))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) 			rv = -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) 		return ipmi_set_my_address(priv->user, val.channel, val.value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) 	case IPMICTL_GET_MY_CHANNEL_ADDRESS_CMD:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) 	{
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) 		struct ipmi_channel_lun_address_set val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) 		if (copy_from_user(&val, arg, sizeof(val))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) 			rv = -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) 		rv = ipmi_get_my_address(priv->user, val.channel, &val.value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) 		if (rv)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) 		if (copy_to_user(arg, &val, sizeof(val))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) 			rv = -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) 	case IPMICTL_SET_MY_CHANNEL_LUN_CMD:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) 	{
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) 		struct ipmi_channel_lun_address_set val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) 		if (copy_from_user(&val, arg, sizeof(val))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) 			rv = -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) 		rv = ipmi_set_my_LUN(priv->user, val.channel, val.value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) 	case IPMICTL_GET_MY_CHANNEL_LUN_CMD:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) 	{
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) 		struct ipmi_channel_lun_address_set val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) 		if (copy_from_user(&val, arg, sizeof(val))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534) 			rv = -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538) 		rv = ipmi_get_my_LUN(priv->user, val.channel, &val.value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) 		if (rv)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542) 		if (copy_to_user(arg, &val, sizeof(val))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543) 			rv = -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549) 	case IPMICTL_SET_TIMING_PARMS_CMD:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) 	{
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) 		struct ipmi_timing_parms parms;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553) 		if (copy_from_user(&parms, arg, sizeof(parms))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) 			rv = -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558) 		mutex_lock(&priv->recv_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559) 		priv->default_retries = parms.retries;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560) 		priv->default_retry_time_ms = parms.retry_time_ms;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561) 		mutex_unlock(&priv->recv_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562) 		rv = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566) 	case IPMICTL_GET_TIMING_PARMS_CMD:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) 	{
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568) 		struct ipmi_timing_parms parms;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) 		mutex_lock(&priv->recv_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571) 		parms.retries = priv->default_retries;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572) 		parms.retry_time_ms = priv->default_retry_time_ms;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573) 		mutex_unlock(&priv->recv_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575) 		if (copy_to_user(arg, &parms, sizeof(parms))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576) 			rv = -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580) 		rv = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584) 	case IPMICTL_GET_MAINTENANCE_MODE_CMD:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585) 	{
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586) 		int mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588) 		mode = ipmi_get_maintenance_mode(priv->user);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589) 		if (copy_to_user(arg, &mode, sizeof(mode))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590) 			rv = -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593) 		rv = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 595) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 596) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 597) 	case IPMICTL_SET_MAINTENANCE_MODE_CMD:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 598) 	{
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 599) 		int mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 600) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 601) 		if (copy_from_user(&mode, arg, sizeof(mode))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 602) 			rv = -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 603) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 604) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 605) 		rv = ipmi_set_maintenance_mode(priv->user, mode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 606) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 607) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 608) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 609) 	default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 610) 		rv = -ENOTTY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 611) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 612) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 613)   
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 614) 	return rv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 615) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 616) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 617) #ifdef CONFIG_COMPAT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 618) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 619)  * The following code contains code for supporting 32-bit compatible
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 620)  * ioctls on 64-bit kernels.  This allows running 32-bit apps on the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 621)  * 64-bit kernel
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 622)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 623) #define COMPAT_IPMICTL_SEND_COMMAND	\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 624) 	_IOR(IPMI_IOC_MAGIC, 13, struct compat_ipmi_req)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 625) #define COMPAT_IPMICTL_SEND_COMMAND_SETTIME	\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 626) 	_IOR(IPMI_IOC_MAGIC, 21, struct compat_ipmi_req_settime)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 627) #define COMPAT_IPMICTL_RECEIVE_MSG	\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 628) 	_IOWR(IPMI_IOC_MAGIC, 12, struct compat_ipmi_recv)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 629) #define COMPAT_IPMICTL_RECEIVE_MSG_TRUNC	\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 630) 	_IOWR(IPMI_IOC_MAGIC, 11, struct compat_ipmi_recv)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 631) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 632) struct compat_ipmi_msg {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 633) 	u8		netfn;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 634) 	u8		cmd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 635) 	u16		data_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 636) 	compat_uptr_t	data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 637) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 638) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 639) struct compat_ipmi_req {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 640) 	compat_uptr_t		addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 641) 	compat_uint_t		addr_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 642) 	compat_long_t		msgid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 643) 	struct compat_ipmi_msg	msg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 644) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 645) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 646) struct compat_ipmi_recv {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 647) 	compat_int_t		recv_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 648) 	compat_uptr_t		addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 649) 	compat_uint_t		addr_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 650) 	compat_long_t		msgid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 651) 	struct compat_ipmi_msg	msg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 652) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 653) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 654) struct compat_ipmi_req_settime {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 655) 	struct compat_ipmi_req	req;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 656) 	compat_int_t		retries;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 657) 	compat_uint_t		retry_time_ms;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 658) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 659) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 660) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 661)  * Define some helper functions for copying IPMI data
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 662)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 663) static void get_compat_ipmi_msg(struct ipmi_msg *p64,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 664) 				struct compat_ipmi_msg *p32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 665) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 666) 	p64->netfn = p32->netfn;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 667) 	p64->cmd = p32->cmd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 668) 	p64->data_len = p32->data_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 669) 	p64->data = compat_ptr(p32->data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 670) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 671) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 672) static void get_compat_ipmi_req(struct ipmi_req *p64,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 673) 				struct compat_ipmi_req *p32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 674) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 675) 	p64->addr = compat_ptr(p32->addr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 676) 	p64->addr_len = p32->addr_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 677) 	p64->msgid = p32->msgid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 678) 	get_compat_ipmi_msg(&p64->msg, &p32->msg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 679) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 680) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 681) static void get_compat_ipmi_req_settime(struct ipmi_req_settime *p64,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 682) 		struct compat_ipmi_req_settime *p32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 683) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 684) 	get_compat_ipmi_req(&p64->req, &p32->req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 685) 	p64->retries = p32->retries;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 686) 	p64->retry_time_ms = p32->retry_time_ms;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 687) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 688) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 689) static void get_compat_ipmi_recv(struct ipmi_recv *p64,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 690) 				 struct compat_ipmi_recv *p32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 691) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 692) 	memset(p64, 0, sizeof(struct ipmi_recv));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 693) 	p64->recv_type = p32->recv_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 694) 	p64->addr = compat_ptr(p32->addr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 695) 	p64->addr_len = p32->addr_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 696) 	p64->msgid = p32->msgid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 697) 	get_compat_ipmi_msg(&p64->msg, &p32->msg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 698) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 699) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 700) static int copyout_recv32(struct ipmi_recv *p64, void __user *to)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 701) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 702) 	struct compat_ipmi_recv v32;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 703) 	memset(&v32, 0, sizeof(struct compat_ipmi_recv));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 704) 	v32.recv_type = p64->recv_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 705) 	v32.addr = ptr_to_compat(p64->addr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 706) 	v32.addr_len = p64->addr_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 707) 	v32.msgid = p64->msgid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 708) 	v32.msg.netfn = p64->msg.netfn;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 709) 	v32.msg.cmd = p64->msg.cmd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 710) 	v32.msg.data_len = p64->msg.data_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 711) 	v32.msg.data = ptr_to_compat(p64->msg.data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 712) 	return copy_to_user(to, &v32, sizeof(v32)) ? -EFAULT : 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 713) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 714) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 715) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 716)  * Handle compatibility ioctls
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 717)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 718) static long compat_ipmi_ioctl(struct file *filep, unsigned int cmd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 719) 			      unsigned long arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 720) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 721) 	struct ipmi_file_private *priv = filep->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 722) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 723) 	switch(cmd) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 724) 	case COMPAT_IPMICTL_SEND_COMMAND:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 725) 	{
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 726) 		struct ipmi_req	rp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 727) 		struct compat_ipmi_req r32;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 728) 		int retries;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 729) 		unsigned int retry_time_ms;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 730) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 731) 		if (copy_from_user(&r32, compat_ptr(arg), sizeof(r32)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 732) 			return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 733) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 734) 		get_compat_ipmi_req(&rp, &r32);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 735) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 736) 		mutex_lock(&priv->recv_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 737) 		retries = priv->default_retries;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 738) 		retry_time_ms = priv->default_retry_time_ms;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 739) 		mutex_unlock(&priv->recv_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 740) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 741) 		return handle_send_req(priv->user, &rp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 742) 				       retries, retry_time_ms);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 743) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 744) 	case COMPAT_IPMICTL_SEND_COMMAND_SETTIME:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 745) 	{
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 746) 		struct ipmi_req_settime	sp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 747) 		struct compat_ipmi_req_settime sp32;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 748) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 749) 		if (copy_from_user(&sp32, compat_ptr(arg), sizeof(sp32)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 750) 			return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 751) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 752) 		get_compat_ipmi_req_settime(&sp, &sp32);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 753) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 754) 		return handle_send_req(priv->user, &sp.req,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 755) 				sp.retries, sp.retry_time_ms);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 756) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 757) 	case COMPAT_IPMICTL_RECEIVE_MSG:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 758) 	case COMPAT_IPMICTL_RECEIVE_MSG_TRUNC:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 759) 	{
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 760) 		struct ipmi_recv   recv64;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 761) 		struct compat_ipmi_recv recv32;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 762) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 763) 		if (copy_from_user(&recv32, compat_ptr(arg), sizeof(recv32)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 764) 			return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 765) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 766) 		get_compat_ipmi_recv(&recv64, &recv32);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 767) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 768) 		return handle_recv(priv,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 769) 				 cmd == COMPAT_IPMICTL_RECEIVE_MSG_TRUNC,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 770) 				 &recv64, copyout_recv32, compat_ptr(arg));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 771) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 772) 	default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 773) 		return ipmi_ioctl(filep, cmd, arg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 774) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 775) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 776) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 777) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 778) static const struct file_operations ipmi_fops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 779) 	.owner		= THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 780) 	.unlocked_ioctl	= ipmi_ioctl,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 781) #ifdef CONFIG_COMPAT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 782) 	.compat_ioctl   = compat_ipmi_ioctl,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 783) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 784) 	.open		= ipmi_open,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 785) 	.release	= ipmi_release,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 786) 	.fasync		= ipmi_fasync,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 787) 	.poll		= ipmi_poll,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 788) 	.llseek		= noop_llseek,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 789) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 790) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 791) #define DEVICE_NAME     "ipmidev"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 792) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 793) static int ipmi_major;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 794) module_param(ipmi_major, int, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 795) MODULE_PARM_DESC(ipmi_major, "Sets the major number of the IPMI device.  By"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 796) 		 " default, or if you set it to zero, it will choose the next"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 797) 		 " available device.  Setting it to -1 will disable the"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 798) 		 " interface.  Other values will set the major device number"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 799) 		 " to that value.");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 800) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 801) /* Keep track of the devices that are registered. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 802) struct ipmi_reg_list {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 803) 	dev_t            dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 804) 	struct list_head link;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 805) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 806) static LIST_HEAD(reg_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 807) static DEFINE_MUTEX(reg_list_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 808) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 809) static struct class *ipmi_class;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 810) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 811) static void ipmi_new_smi(int if_num, struct device *device)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 812) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 813) 	dev_t dev = MKDEV(ipmi_major, if_num);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 814) 	struct ipmi_reg_list *entry;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 815) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 816) 	entry = kmalloc(sizeof(*entry), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 817) 	if (!entry) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 818) 		pr_err("ipmi_devintf: Unable to create the ipmi class device link\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 819) 		return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 820) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 821) 	entry->dev = dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 822) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 823) 	mutex_lock(&reg_list_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 824) 	device_create(ipmi_class, device, dev, NULL, "ipmi%d", if_num);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 825) 	list_add(&entry->link, &reg_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 826) 	mutex_unlock(&reg_list_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 827) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 828) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 829) static void ipmi_smi_gone(int if_num)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 830) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 831) 	dev_t dev = MKDEV(ipmi_major, if_num);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 832) 	struct ipmi_reg_list *entry;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 833) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 834) 	mutex_lock(&reg_list_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 835) 	list_for_each_entry(entry, &reg_list, link) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 836) 		if (entry->dev == dev) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 837) 			list_del(&entry->link);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 838) 			kfree(entry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 839) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 840) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 841) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 842) 	device_destroy(ipmi_class, dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 843) 	mutex_unlock(&reg_list_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 844) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 845) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 846) static struct ipmi_smi_watcher smi_watcher =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 847) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 848) 	.owner    = THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 849) 	.new_smi  = ipmi_new_smi,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 850) 	.smi_gone = ipmi_smi_gone,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 851) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 852) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 853) static int __init init_ipmi_devintf(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 854) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 855) 	int rv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 856) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 857) 	if (ipmi_major < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 858) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 859) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 860) 	pr_info("ipmi device interface\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 861) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 862) 	ipmi_class = class_create(THIS_MODULE, "ipmi");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 863) 	if (IS_ERR(ipmi_class)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 864) 		pr_err("ipmi: can't register device class\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 865) 		return PTR_ERR(ipmi_class);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 866) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 867) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 868) 	rv = register_chrdev(ipmi_major, DEVICE_NAME, &ipmi_fops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 869) 	if (rv < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 870) 		class_destroy(ipmi_class);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 871) 		pr_err("ipmi: can't get major %d\n", ipmi_major);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 872) 		return rv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 873) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 874) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 875) 	if (ipmi_major == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 876) 		ipmi_major = rv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 877) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 878) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 879) 	rv = ipmi_smi_watcher_register(&smi_watcher);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 880) 	if (rv) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 881) 		unregister_chrdev(ipmi_major, DEVICE_NAME);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 882) 		class_destroy(ipmi_class);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 883) 		pr_warn("ipmi: can't register smi watcher\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 884) 		return rv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 885) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 886) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 887) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 888) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 889) module_init(init_ipmi_devintf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 890) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 891) static void __exit cleanup_ipmi(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 892) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 893) 	struct ipmi_reg_list *entry, *entry2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 894) 	mutex_lock(&reg_list_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 895) 	list_for_each_entry_safe(entry, entry2, &reg_list, link) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 896) 		list_del(&entry->link);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 897) 		device_destroy(ipmi_class, entry->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 898) 		kfree(entry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 899) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 900) 	mutex_unlock(&reg_list_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 901) 	class_destroy(ipmi_class);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 902) 	ipmi_smi_watcher_unregister(&smi_watcher);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 903) 	unregister_chrdev(ipmi_major, DEVICE_NAME);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 904) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 905) module_exit(cleanup_ipmi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 906) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 907) MODULE_LICENSE("GPL");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 908) MODULE_AUTHOR("Corey Minyard <minyard@mvista.com>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 909) MODULE_DESCRIPTION("Linux device interface for the IPMI message handler.");