vserver 1.9.5.x5
[linux-2.6.git] / drivers / char / ipmi / ipmi_msghandler.c
index 83ae6f5..fe02300 100644 (file)
 #include <linux/init.h>
 #include <linux/proc_fs.h>
 
-#define IPMI_MSGHANDLER_VERSION "v32"
+#define PFX "IPMI message handler: "
+#define IPMI_MSGHANDLER_VERSION "v33"
 
-struct ipmi_recv_msg *ipmi_alloc_recv_msg(void);
+static struct ipmi_recv_msg *ipmi_alloc_recv_msg(void);
 static int ipmi_init_msghandler(void);
 
 static int initialized = 0;
@@ -293,44 +294,6 @@ struct ipmi_smi
        unsigned int events;
 };
 
-int
-ipmi_register_all_cmd_rcvr(ipmi_user_t user)
-{
-       unsigned long flags;
-       int           rv = -EBUSY;
-
-       write_lock_irqsave(&(user->intf->users_lock), flags);
-       write_lock(&(user->intf->cmd_rcvr_lock));
-       if ((user->intf->all_cmd_rcvr == NULL)
-           && (list_empty(&(user->intf->cmd_rcvrs))))
-       {
-               user->intf->all_cmd_rcvr = user;
-               rv = 0;
-       }
-       write_unlock(&(user->intf->cmd_rcvr_lock));
-       write_unlock_irqrestore(&(user->intf->users_lock), flags);
-       return rv;
-}
-
-int
-ipmi_unregister_all_cmd_rcvr(ipmi_user_t user)
-{
-       unsigned long flags;
-       int           rv = -EINVAL;
-
-       write_lock_irqsave(&(user->intf->users_lock), flags);
-       write_lock(&(user->intf->cmd_rcvr_lock));
-       if (user->intf->all_cmd_rcvr == user)
-       {
-               user->intf->all_cmd_rcvr = NULL;
-               rv = 0;
-       }
-       write_unlock(&(user->intf->cmd_rcvr_lock));
-       write_unlock_irqrestore(&(user->intf->users_lock), flags);
-       return rv;
-}
-
-
 #define MAX_IPMI_INTERFACES 4
 static ipmi_smi_t ipmi_interfaces[MAX_IPMI_INTERFACES];
 
@@ -341,7 +304,7 @@ static DECLARE_RWSEM(interfaces_sem);
 
 /* Directly protects the ipmi_interfaces data structure.  This is
    claimed in the timer interrupt. */
-static spinlock_t interfaces_lock = SPIN_LOCK_UNLOCKED;
+static DEFINE_SPINLOCK(interfaces_lock);
 
 /* List of watchers that want to know when smi's are added and
    deleted. */
@@ -388,7 +351,7 @@ call_smi_watchers(int i)
        up_read(&smi_watchers_sem);
 }
 
-int
+static int
 ipmi_addr_equal(struct ipmi_addr *addr1, struct ipmi_addr *addr2)
 {
        if (addr1->addr_type != addr2->addr_type)
@@ -480,6 +443,9 @@ unsigned int ipmi_addr_length(int addr_type)
                return sizeof(struct ipmi_ipmb_addr);
        }
 
+       if (addr_type == IPMI_LAN_ADDR_TYPE)
+               return sizeof(struct ipmi_lan_addr);
+
        return 0;
 }
 
@@ -895,6 +861,12 @@ int ipmi_unregister_for_cmd(ipmi_user_t   user,
        return rv;
 }
 
+void ipmi_user_set_run_to_completion(ipmi_user_t user, int val)
+{
+       user->intf->handlers->set_run_to_completion(user->intf->send_info,
+                                                   val);
+}
+
 static unsigned char
 ipmb_checksum(unsigned char *data, int size)
 {
@@ -1353,26 +1325,6 @@ static inline int i_ipmi_request(ipmi_user_t          user,
        return rv;
 }
 
-int ipmi_request(ipmi_user_t      user,
-                struct ipmi_addr *addr,
-                long             msgid,
-                struct kernel_ipmi_msg  *msg,
-                void             *user_msg_data,
-                int              priority)
-{
-       return i_ipmi_request(user,
-                             user->intf,
-                             addr,
-                             msgid,
-                             msg,
-                             user_msg_data,
-                             NULL, NULL,
-                             priority,
-                             user->intf->my_address,
-                             user->intf->my_lun,
-                             -1, 0);
-}
-
 int ipmi_request_settime(ipmi_user_t      user,
                         struct ipmi_addr *addr,
                         long             msgid,
@@ -1419,28 +1371,6 @@ int ipmi_request_supply_msgs(ipmi_user_t          user,
                              -1, 0);
 }
 
-int ipmi_request_with_source(ipmi_user_t      user,
-                            struct ipmi_addr *addr,
-                            long             msgid,
-                            struct kernel_ipmi_msg  *msg,
-                            void             *user_msg_data,
-                            int              priority,
-                            unsigned char    source_address,
-                            unsigned char    source_lun)
-{
-       return i_ipmi_request(user,
-                             user->intf,
-                             addr,
-                             msgid,
-                             msg,
-                             user_msg_data,
-                             NULL, NULL,
-                             priority,
-                             source_address,
-                             source_lun,
-                             -1, 0);
-}
-
 static int ipmb_file_read_proc(char *page, char **start, off_t off,
                               int count, int *eof, void *data)
 {
@@ -1686,8 +1616,8 @@ channel_handler(ipmi_smi_t intf, struct ipmi_smi_msg *msg)
                        intf->curr_channel = IPMI_MAX_CHANNELS;
                        wake_up(&intf->waitq);
 
-                       printk(KERN_WARNING "ipmi_msghandler: Error sending"
-                              "channel information: %d\n",
+                       printk(KERN_WARNING PFX
+                              "Error sending channel information: %d\n",
                               rv);
                }
        }
@@ -1695,14 +1625,6 @@ channel_handler(ipmi_smi_t intf, struct ipmi_smi_msg *msg)
        return;
 }
 
-void ipmi_poll_interface(ipmi_user_t user)
-{
-       ipmi_smi_t intf = user->intf;
-
-       if (intf->handlers->poll)
-               intf->handlers->poll(intf->send_info);
-}
-
 int ipmi_register_smi(struct ipmi_smi_handlers *handlers,
                      void                     *send_info,
                      unsigned char            version_major,
@@ -2351,7 +2273,7 @@ static int handle_read_event_rsp(ipmi_smi_t          intf,
        } else {
                /* There's too many things in the queue, discard this
                   message. */
-               printk(KERN_WARNING "ipmi: Event queue full, discarding an"
+               printk(KERN_WARNING PFX "Event queue full, discarding an"
                       " incoming event\n");
        }
 
@@ -2382,12 +2304,17 @@ static int handle_bmc_rsp(ipmi_smi_t          intf,
 
        if (!found) {
                /* Special handling for NULL users. */
-               if (!recv_msg->user && intf->null_user_handler)
+               if (!recv_msg->user && intf->null_user_handler){
                        intf->null_user_handler(intf, msg);
-               /* The user for the message went away, so give up. */
-               spin_lock_irqsave(&intf->counter_lock, flags);
-               intf->unhandled_local_responses++;
-               spin_unlock_irqrestore(&intf->counter_lock, flags);
+                       spin_lock_irqsave(&intf->counter_lock, flags);
+                       intf->handled_local_responses++;
+                       spin_unlock_irqrestore(&intf->counter_lock, flags);
+               }else{
+                       /* The user for the message went away, so give up. */
+                       spin_lock_irqsave(&intf->counter_lock, flags);
+                       intf->unhandled_local_responses++;
+                       spin_unlock_irqrestore(&intf->counter_lock, flags);
+               }
                ipmi_free_recv_msg(recv_msg);
        } else {
                struct ipmi_system_interface_addr *smi_addr;
@@ -2433,10 +2360,34 @@ static int handle_new_recv_msg(ipmi_smi_t          intf,
 #endif
        if (msg->rsp_size < 2) {
                /* Message is too small to be correct. */
-               requeue = 0;
-       } else if ((msg->rsp[0] == ((IPMI_NETFN_APP_REQUEST|1) << 2))
-                  && (msg->rsp[1] == IPMI_SEND_MSG_CMD)
-                  && (msg->user_data != NULL))
+               printk(KERN_WARNING PFX "BMC returned to small a message"
+                      " for netfn %x cmd %x, got %d bytes\n",
+                      (msg->data[0] >> 2) | 1, msg->data[1], msg->rsp_size);
+
+               /* Generate an error response for the message. */
+               msg->rsp[0] = msg->data[0] | (1 << 2);
+               msg->rsp[1] = msg->data[1];
+               msg->rsp[2] = IPMI_ERR_UNSPECIFIED;
+               msg->rsp_size = 3;
+       } else if (((msg->rsp[0] >> 2) != ((msg->data[0] >> 2) | 1))/* Netfn */
+                  || (msg->rsp[1] != msg->data[1]))              /* Command */
+       {
+               /* The response is not even marginally correct. */
+               printk(KERN_WARNING PFX "BMC returned incorrect response,"
+                      " expected netfn %x cmd %x, got netfn %x cmd %x\n",
+                      (msg->data[0] >> 2) | 1, msg->data[1],
+                      msg->rsp[0] >> 2, msg->rsp[1]);
+
+               /* Generate an error response for the message. */
+               msg->rsp[0] = msg->data[0] | (1 << 2);
+               msg->rsp[1] = msg->data[1];
+               msg->rsp[2] = IPMI_ERR_UNSPECIFIED;
+               msg->rsp_size = 3;
+       }
+
+       if ((msg->rsp[0] == ((IPMI_NETFN_APP_REQUEST|1) << 2))
+           && (msg->rsp[1] == IPMI_SEND_MSG_CMD)
+           && (msg->user_data != NULL))
        {
                /* It's a response to a response we sent.  For this we
                   deliver a send message response to the user. */
@@ -2502,7 +2453,9 @@ static int handle_new_recv_msg(ipmi_smi_t          intf,
                        requeue = 0;
                }
 
-       } else if (msg->rsp[1] == IPMI_READ_EVENT_MSG_BUFFER_CMD) {
+       } else if ((msg->rsp[0] == ((IPMI_NETFN_APP_REQUEST|1) << 2))
+                  && (msg->rsp[1] == IPMI_READ_EVENT_MSG_BUFFER_CMD))
+       {
                /* It's an asyncronous event. */
                requeue = handle_read_event_rsp(intf, msg);
        } else {
@@ -3093,9 +3046,9 @@ static int panic_event(struct notifier_block *this,
 }
 
 static struct notifier_block panic_block = {
-       panic_event,
-       NULL,
-       200   /* priority: INT_MAX >= x >= 0 */
+       .notifier_call  = panic_event,
+       .next           = NULL,
+       .priority       = 200   /* priority: INT_MAX >= x >= 0 */
 };
 
 static int ipmi_init_msghandler(void)
@@ -3114,7 +3067,7 @@ static int ipmi_init_msghandler(void)
 
        proc_ipmi_root = proc_mkdir("ipmi", NULL);
        if (!proc_ipmi_root) {
-           printk("Unable to create IPMI proc dir");
+           printk(KERN_ERR PFX "Unable to create IPMI proc dir");
            return -ENOMEM;
        }
 
@@ -3166,11 +3119,11 @@ static __exit void cleanup_ipmi(void)
        /* Check for buffer leaks. */
        count = atomic_read(&smi_msg_inuse_count);
        if (count != 0)
-               printk("ipmi_msghandler: SMI message count %d at exit\n",
+               printk(KERN_WARNING PFX "SMI message count %d at exit\n",
                       count);
        count = atomic_read(&recv_msg_inuse_count);
        if (count != 0)
-               printk("ipmi_msghandler: recv message count %d at exit\n",
+               printk(KERN_WARNING PFX "recv message count %d at exit\n",
                       count);
 }
 module_exit(cleanup_ipmi);
@@ -3178,15 +3131,11 @@ module_exit(cleanup_ipmi);
 module_init(ipmi_init_msghandler_mod);
 MODULE_LICENSE("GPL");
 
-EXPORT_SYMBOL(ipmi_alloc_recv_msg);
 EXPORT_SYMBOL(ipmi_create_user);
 EXPORT_SYMBOL(ipmi_destroy_user);
 EXPORT_SYMBOL(ipmi_get_version);
-EXPORT_SYMBOL(ipmi_request);
 EXPORT_SYMBOL(ipmi_request_settime);
 EXPORT_SYMBOL(ipmi_request_supply_msgs);
-EXPORT_SYMBOL(ipmi_request_with_source);
-EXPORT_SYMBOL(ipmi_poll_interface);
 EXPORT_SYMBOL(ipmi_register_smi);
 EXPORT_SYMBOL(ipmi_unregister_smi);
 EXPORT_SYMBOL(ipmi_register_for_cmd);
@@ -3194,12 +3143,9 @@ EXPORT_SYMBOL(ipmi_unregister_for_cmd);
 EXPORT_SYMBOL(ipmi_smi_msg_received);
 EXPORT_SYMBOL(ipmi_smi_watchdog_pretimeout);
 EXPORT_SYMBOL(ipmi_alloc_smi_msg);
-EXPORT_SYMBOL(ipmi_register_all_cmd_rcvr);
-EXPORT_SYMBOL(ipmi_unregister_all_cmd_rcvr);
 EXPORT_SYMBOL(ipmi_addr_length);
 EXPORT_SYMBOL(ipmi_validate_addr);
 EXPORT_SYMBOL(ipmi_set_gets_events);
-EXPORT_SYMBOL(ipmi_addr_equal);
 EXPORT_SYMBOL(ipmi_smi_watcher_register);
 EXPORT_SYMBOL(ipmi_smi_watcher_unregister);
 EXPORT_SYMBOL(ipmi_set_my_address);
@@ -3207,3 +3153,4 @@ EXPORT_SYMBOL(ipmi_get_my_address);
 EXPORT_SYMBOL(ipmi_set_my_LUN);
 EXPORT_SYMBOL(ipmi_get_my_LUN);
 EXPORT_SYMBOL(ipmi_smi_add_proc_entry);
+EXPORT_SYMBOL(ipmi_user_set_run_to_completion);