udp.h File Reference

#include <linux/list.h>
#include <linux/bug.h>
#include <net/inet_sock.h>
#include <net/sock.h>
#include <net/snmp.h>
#include <net/ip.h>
#include <linux/ipv6.h>
#include <linux/seq_file.h>
#include <linux/poll.h>

Go to the source code of this file.

Data Structures
struct	udp_skb_cb
struct	udp_hslot
struct	udp_table
struct	udp_seq_afinfo
struct	udp_iter_state

Macros
#define	UDP_SKB_CB(__skb)   ((struct udp_skb_cb *)((__skb)->cb))
#define	UDP_CSUM_NOXMIT   1
#define	UDP_CSUM_NORCV   2
#define	UDP_CSUM_DEFAULT   0
#define	UDP_INC_STATS_USER(net, field, is_udplite)
#define	UDP_INC_STATS_BH(net, field, is_udplite)
#define	UDP6_INC_STATS_BH(net, field, is_udplite)
#define	UDP6_INC_STATS_USER(net, field, __lite)
#define	UDPX_INC_STATS_BH(sk, field)   UDP_INC_STATS_BH(sock_net(sk), field, 0)

Functions
struct udp_hslot	__attribute__ ((aligned(2 *sizeof(long))))
void	udp_table_init (struct udp_table *, const char *)
void	udp_lib_unhash (struct sock *sk)
void	udp_lib_rehash (struct sock *sk, u16 new_hash)
int	udp_lib_get_port (struct sock *sk, unsigned short snum, int(*)(const struct sock *, const struct sock *), unsigned int hash2_nulladdr)
int	udp_get_port (struct sock *sk, unsigned short snum, int(*saddr_cmp)(const struct sock *, const struct sock *))
void	udp_err (struct sk_buff *, u32)
int	udp_sendmsg (struct kiocb *iocb, struct sock *sk, struct msghdr *msg, size_t len)
void	udp_flush_pending_frames (struct sock *sk)
int	udp_rcv (struct sk_buff *skb)
int	udp_ioctl (struct sock *sk, int cmd, unsigned long arg)
int	udp_disconnect (struct sock *sk, int flags)
unsigned int	udp_poll (struct file *file, struct socket *sock, poll_table *wait)
int	udp_lib_getsockopt (struct sock *sk, int level, int optname, char __user *optval, int __user *optlen)
int	udp_lib_setsockopt (struct sock *sk, int level, int optname, char __user *optval, unsigned int optlen, int(*push_pending_frames)(struct sock *))
struct sock *	udp4_lib_lookup (struct net *net, __be32 saddr, __be16 sport, __be32 daddr, __be16 dport, int dif)
struct sock *	__udp4_lib_lookup (struct net *net, __be32 saddr, __be16 sport, __be32 daddr, __be16 dport, int dif, struct udp_table *tbl)
struct sock *	udp6_lib_lookup (struct net *net, const struct in6_addr *saddr, __be16 sport, const struct in6_addr *daddr, __be16 dport, int dif)
struct sock *	__udp6_lib_lookup (struct net *net, const struct in6_addr *saddr, __be16 sport, const struct in6_addr *daddr, __be16 dport, int dif, struct udp_table *tbl)
int	udp_seq_open (struct inode *inode, struct file *file)
void	udp_init (void)
int	udp4_ufo_send_check (struct sk_buff *skb)
struct sk_buff *	udp4_ufo_fragment (struct sk_buff *skb, netdev_features_t features)
void	udp_encap_enable (void)

Variables
struct hlist_nulls_head	head
int	count
spinlock_t	lock
struct udp_table	__attribute__
struct udp_table	udp_table
struct proto	udp_prot
atomic_long_t	udp_memory_allocated
long	sysctl_udp_mem [3]
int	sysctl_udp_rmem_min
int	sysctl_udp_wmem_min

Macro Definition Documentation

#define UDP6_INC_STATS_BH	(		net,
			field,
			is_udplite
	)

Value:

do { \
    if (is_udplite) SNMP_INC_STATS_BH((net)->mib.udplite_stats_in6, field);\
    else        SNMP_INC_STATS_BH((net)->mib.udp_stats_in6, field);  \
} while(0)

Definition at line 218 of file udp.h.

#define UDP6_INC_STATS_USER	(		net,
			field,
			__lite
	)

Value:

do { \
    if (__lite) SNMP_INC_STATS_USER((net)->mib.udplite_stats_in6, field);  \
    else        SNMP_INC_STATS_USER((net)->mib.udp_stats_in6, field);      \
} while(0)

Definition at line 222 of file udp.h.

#define UDP_CSUM_DEFAULT   0

Definition at line 105 of file udp.h.

#define UDP_CSUM_NORCV   2

Definition at line 102 of file udp.h.

#define UDP_CSUM_NOXMIT   1

Definition at line 99 of file udp.h.

#define UDP_INC_STATS_BH	(		net,
			field,
			is_udplite
	)

Value:

do { \
    if (is_udplite) SNMP_INC_STATS_BH((net)->mib.udplite_statistics, field);         \
    else        SNMP_INC_STATS_BH((net)->mib.udp_statistics, field);    }  while(0)

Definition at line 214 of file udp.h.

#define UDP_INC_STATS_USER	(		net,
			field,
			is_udplite
	)

Value:

do { \
    if (is_udplite) SNMP_INC_STATS_USER((net)->mib.udplite_statistics, field);       \
    else        SNMP_INC_STATS_USER((net)->mib.udp_statistics, field);  }  while(0)

Definition at line 211 of file udp.h.

#define UDP_SKB_CB

(

__skb

)

((struct udp_skb_cb *)((__skb)->cb))

Definition at line 52 of file udp.h.

#define UDPX_INC_STATS_BH	(		sk,
			field
	)		UDP_INC_STATS_BH(sock_net(sk), field, 0)

Definition at line 236 of file udp.h.

Function Documentation

struct udp_hslot __attribute__

(

(aligned(2 *sizeof(long)))

)

struct sock* __udp4_lib_lookup ( struct net *  net, __be32  saddr, __be16  sport, __be32  daddr, __be16  dport, int  dif, struct udp_table *  tbl  )

read

Definition at line 451 of file udp.c.

struct sock* __udp6_lib_lookup ( struct net *  net, const struct in6_addr *  saddr, __be16  sport, const struct in6_addr *  daddr, __be16  dport, int  dif, struct udp_table *  tbl  )

read

Definition at line 242 of file udp.c.

struct sock* udp4_lib_lookup ( struct net *  net, __be32  saddr, __be16  sport, __be32  daddr, __be16  dport, int  dif  )

read

Definition at line 535 of file udp.c.

struct sk_buff* udp4_ufo_fragment ( struct sk_buff *  skb, netdev_features_t  features  )

read

Definition at line 2266 of file udp.c.

int udp4_ufo_send_check

(

struct sk_buff *

skb

)

Definition at line 2247 of file udp.c.

struct sock* udp6_lib_lookup ( struct net *  net, const struct in6_addr *  saddr, __be16  sport, const struct in6_addr *  daddr, __be16  dport, int  dif  )

read

Definition at line 325 of file udp.c.

int udp_disconnect	(	struct sock *	sk,
		int	flags
	)

Definition at line 1277 of file udp.c.

void udp_encap_enable

(

void

)

Definition at line 1396 of file udp.c.

void udp_err	(	struct sk_buff *	,
		u32
	)

Definition at line 654 of file udp.c.

void udp_flush_pending_frames

(

struct sock *

sk

)

Definition at line 662 of file udp.c.

int udp_get_port	(	struct sock *	sk,
		unsigned short	snum,
		int(*)(const struct sock *, const struct sock *)	saddr_cmp
	)

void udp_init

(

void

)

Definition at line 2232 of file udp.c.

int udp_ioctl	(	struct sock *	sk,
		int	cmd,
		unsigned long	arg
	)

Definition at line 1132 of file udp.c.

int udp_lib_get_port	(	struct sock *	sk,
		unsigned short	snum,
		int(*)(const struct sock *, const struct sock *)	,
		unsigned int	hash2_nulladdr
	)

int udp_lib_getsockopt	(	struct sock *	sk,
		int	level,
		int	optname,
		char __user *	optval,
		int __user *	optlen
	)

Definition at line 1851 of file udp.c.

void udp_lib_rehash	(	struct sock *	sk,
		u16	new_hash
	)

Definition at line 1330 of file udp.c.

int udp_lib_setsockopt	(	struct sock *	sk,
		int	level,
		int	optname,
		char __user *	optval,
		unsigned int	optlen,
		int(*)(struct sock *)	push_pending_frames
	)

Definition at line 1748 of file udp.c.

void udp_lib_unhash

(

struct sock *

sk

)

Definition at line 1301 of file udp.c.

unsigned int udp_poll	(	struct file *	file,
		struct socket *	sock,
		poll_table *	wait
	)

Definition at line 1926 of file udp.c.

int udp_rcv

(

struct sk_buff *

skb

)

Definition at line 1733 of file udp.c.

int udp_sendmsg	(	struct kiocb *	iocb,
		struct sock *	sk,
		struct msghdr *	msg,
		size_t	len
	)

Definition at line 797 of file udp.c.

int udp_seq_open	(	struct inode *	inode,
		struct file *	file
	)

void udp_table_init	(	struct udp_table *	,
		const char *
	)

Definition at line 2205 of file udp.c.

Variable Documentation

struct udp_table __attribute__

int count

Definition at line 67 of file udp.h.

struct hlist_nulls_head head

Definition at line 66 of file udp.h.

spinlock_t lock

Definition at line 68 of file udp.h.

long sysctl_udp_mem

Definition at line 117 of file udp.c.

int sysctl_udp_rmem_min

int sysctl_udp_wmem_min

atomic_long_t udp_memory_allocated

Definition at line 126 of file udp.c.

struct proto udp_prot

Definition at line 1941 of file udp.c.

struct udp_table udp_table