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Linux Kernel
3.7.1
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All Data Structures Namespaces Files Functions Variables Typedefs Enumerations Enumerator Macros Groups Pages
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Linux Kernel
3.7.1
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#include <linux/device.h>#include <linux/slab.h>#include <net/genetlink.h>#include <linux/netdevice.h>#include <linux/wimax.h>#include <linux/security.h>#include <linux/export.h>#include "wimax-internal.h"#include "debug-levels.h"Go to the source code of this file.
Macros | |
| #define | D_SUBMODULE op_msg |
Functions | |
| struct sk_buff * | wimax_msg_alloc (struct wimax_dev *wimax_dev, const char *pipe_name, const void *msg, size_t size, gfp_t gfp_flags) |
| EXPORT_SYMBOL_GPL (wimax_msg_alloc) | |
| const void * | wimax_msg_data_len (struct sk_buff *msg, size_t *size) |
| EXPORT_SYMBOL_GPL (wimax_msg_data_len) | |
| const void * | wimax_msg_data (struct sk_buff *msg) |
| EXPORT_SYMBOL_GPL (wimax_msg_data) | |
| ssize_t | wimax_msg_len (struct sk_buff *msg) |
| EXPORT_SYMBOL_GPL (wimax_msg_len) | |
| int | wimax_msg_send (struct wimax_dev *wimax_dev, struct sk_buff *skb) |
| EXPORT_SYMBOL_GPL (wimax_msg_send) | |
| int | wimax_msg (struct wimax_dev *wimax_dev, const char *pipe_name, const void *buf, size_t size, gfp_t gfp_flags) |
| EXPORT_SYMBOL_GPL (wimax_msg) | |
Variables | |
| struct genl_ops | wimax_gnl_msg_from_user |
| EXPORT_SYMBOL_GPL | ( | wimax_msg_alloc | ) |
| EXPORT_SYMBOL_GPL | ( | wimax_msg_data_len | ) |
| EXPORT_SYMBOL_GPL | ( | wimax_msg_data | ) |
| EXPORT_SYMBOL_GPL | ( | wimax_msg_len | ) |
| EXPORT_SYMBOL_GPL | ( | wimax_msg_send | ) |
| EXPORT_SYMBOL_GPL | ( | wimax_msg | ) |
| int wimax_msg | ( | struct wimax_dev * | wimax_dev, |
| const char * | pipe_name, | ||
| const void * | buf, | ||
| size_t | size, | ||
| gfp_t | gfp_flags | ||
| ) |
wimax_msg - Send a message to user space
: WiMAX device descriptor (properly referenced) : "named pipe" the message will be sent to : pointer to the message to send. : size of the buffer pointed to by (in bytes). : flags for memory allocation.
Returns: %0 if ok, negative errno code on error.
Description:
Sends a free-form message to user space on the device .
NOTES:
Once the is given to this function, who will own it and will release it when done (unless it returns error).
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read |
wimax_msg_alloc - Create a new skb for sending a message to userspace
: WiMAX device descriptor : "named pipe" the message will be sent to : pointer to the message data to send : size of the message to send (in bytes), including the header. : flags for memory allocation.
Returns: %0 if ok, negative errno code on error
Description:
Allocates an skb that will contain the message to send to user space over the messaging pipe and initializes it, copying the payload.
Once this call is done, you can deliver it with wimax_msg_send().
IMPORTANT:
Don't use skb_push()/skb_pull()/skb_reserve() on the skb, as wimax_msg_send() depends on skb->data being placed at the beginning of the user message.
Unlike other WiMAX stack calls, this call can be used way early, even before wimax_dev_add() is called, as long as the wimax_dev->net_dev pointer is set to point to a proper net_dev. This is so that drivers can use it early in case they need to send stuff around or communicate with user space.
wimax_msg_data - Return a pointer to a message's payload
: Pointer to a message created with wimax_msg_alloc()
wimax_msg_len - Return a message's payload length
: Pointer to a message created with wimax_msg_alloc()
wimax_msg_send - Send a pre-allocated message to user space
: WiMAX device descriptor
: &struct sk_buff returned by wimax_msg_alloc(). Note the ownership of is transferred to this function.
Returns: 0 if ok, < 0 errno code on error
Description:
Sends a free-form message that was preallocated with wimax_msg_alloc() and filled up.
Assumes that once you pass an skb to this function for sending, it owns it and will release it when done (on success).
IMPORTANT:
Don't use skb_push()/skb_pull()/skb_reserve() on the skb, as wimax_msg_send() depends on skb->data being placed at the beginning of the user message.
Unlike other WiMAX stack calls, this call can be used way early, even before wimax_dev_add() is called, as long as the wimax_dev->net_dev pointer is set to point to a proper net_dev. This is so that drivers can use it early in case they need to send stuff around or communicate with user space.
1.8.2