descriptor.h File Reference

#include <fs/vfs.h>
#include <stdbool.h>
#include <stdint.h>
#include <sys/types.h>

Include dependency graph for descriptor.h:

Data Structures
struct	descriptor_t

Functions
int	create_file_descriptor (inode_t inode, uint32_t flags)
int	create_socket_descriptor (inode_t inode, uint32_t domain, uint32_t type, uint32_t protocol)
descriptor_t *	get_descriptor (int id)
void	delete_descriptor (int id)
int	descriptor_udp_lookup (uint16_t port)
bool	is_protocol_supported (uint32_t type, uint32_t protocol)

Function Documentation

create_file_descriptor()

int create_file_descriptor	(	inode_t	inode,
		uint32_t	flags )

Creates a file descriptor.

Parameters

inode	the inode for the file descriptor to create
flags	some descriptor flags

Returns

a descriptor ID or -1 in case of an error

create_socket_descriptor()

int create_socket_descriptor	(	inode_t	inode,
		uint32_t	domain,
		uint32_t	type,
		uint32_t	protocol )

Creates a socket descriptor.

Parameters

inode	the inode for the socket descriptor to create
domain	the domain of the socket
type	the type of the socket
protocol	the protocol of the socket

Returns

a descriptor ID or -1 in case of an error

delete_descriptor()

void delete_descriptor

(

int

id

)

Deletes a descriptor.

Parameters

id	the descriptor ID

descriptor_udp_lookup()

int descriptor_udp_lookup

(

uint16_t

port

)

Returns a socket descriptor for UDP.

Parameters

port	the port bound to the socket to return

Returns

the socket descriptor or -1 when not found

get_descriptor()

descriptor_t * get_descriptor

(

int

id

)

Returns a descriptor.

Parameters

id	the descriptor ID

Returns

a descriptor or NULL

is_protocol_supported()

bool is_protocol_supported	(	uint32_t	type,
		uint32_t	protocol )

Returns whether a socket protocol is supported.

TODO: move this function somewhere else.

Parameters

type	socket type
protocol	socket protocol

Returns

true when the protocol is supported, false otherwise