sock.c File Reference

#include <linux/capability.h>
#include <linux/errno.h>
#include <linux/types.h>
#include <linux/socket.h>
#include <linux/in.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <linux/sched.h>
#include <linux/timer.h>
#include <linux/string.h>
#include <linux/sockios.h>
#include <linux/net.h>
#include <linux/mm.h>
#include <linux/slab.h>
#include <linux/interrupt.h>
#include <linux/poll.h>
#include <linux/tcp.h>
#include <linux/init.h>
#include <linux/highmem.h>
#include <linux/user_namespace.h>
#include <linux/static_key.h>
#include <linux/memcontrol.h>
#include <linux/prefetch.h>
#include <asm/uaccess.h>
#include <linux/netdevice.h>
#include <net/protocol.h>
#include <linux/skbuff.h>
#include <net/net_namespace.h>
#include <net/request_sock.h>
#include <net/sock.h>
#include <linux/net_tstamp.h>
#include <net/xfrm.h>
#include <linux/ipsec.h>
#include <net/cls_cgroup.h>
#include <net/netprio_cgroup.h>
#include <linux/filter.h>
#include <trace/events/sock.h>

Go to the source code of this file.

Macros
#define	pr_fmt(fmt)   KBUILD_MODNAME ": " fmt
#define	_SK_MEM_PACKETS   256
#define	_SK_MEM_OVERHEAD   SKB_TRUESIZE(256)
#define	SK_WMEM_MAX   (_SK_MEM_OVERHEAD * _SK_MEM_PACKETS)
#define	SK_RMEM_MAX   (_SK_MEM_OVERHEAD * _SK_MEM_PACKETS)
#define	SK_FLAGS_TIMESTAMP   ((1UL << SOCK_TIMESTAMP) | (1UL << SOCK_TIMESTAMPING_RX_SOFTWARE))
#define	SKB_FRAG_PAGE_ORDER   get_order(32768)

Functions
	EXPORT_SYMBOL (memcg_socket_limit_enabled)
	EXPORT_SYMBOL (sysctl_wmem_max)
	EXPORT_SYMBOL (sysctl_rmem_max)
	EXPORT_SYMBOL (sysctl_optmem_max)
	EXPORT_SYMBOL_GPL (memalloc_socks)
void	sk_set_memalloc (struct sock *sk)
	EXPORT_SYMBOL_GPL (sk_set_memalloc)
void	sk_clear_memalloc (struct sock *sk)
	EXPORT_SYMBOL_GPL (sk_clear_memalloc)
int	__sk_backlog_rcv (struct sock *sk, struct sk_buff *skb)
	EXPORT_SYMBOL (__sk_backlog_rcv)
int	sock_queue_rcv_skb (struct sock *sk, struct sk_buff *skb)
	EXPORT_SYMBOL (sock_queue_rcv_skb)
int	sk_receive_skb (struct sock *sk, struct sk_buff *skb, const int nested)
	EXPORT_SYMBOL (sk_receive_skb)
void	sk_reset_txq (struct sock *sk)
	EXPORT_SYMBOL (sk_reset_txq)
struct dst_entry *	__sk_dst_check (struct sock *sk, u32 cookie)
	EXPORT_SYMBOL (__sk_dst_check)
struct dst_entry *	sk_dst_check (struct sock *sk, u32 cookie)
	EXPORT_SYMBOL (sk_dst_check)
int	sock_setsockopt (struct socket *sock, int level, int optname, char __user *optval, unsigned int optlen)
	EXPORT_SYMBOL (sock_setsockopt)
void	cred_to_ucred (struct pid *pid, const struct cred *cred, struct ucred *ucred)
	EXPORT_SYMBOL_GPL (cred_to_ucred)
int	sock_getsockopt (struct socket *sock, int level, int optname, char __user *optval, int __user *optlen)
void	sk_prot_clear_portaddr_nulls (struct sock *sk, int size)
	EXPORT_SYMBOL (sk_prot_clear_portaddr_nulls)
struct sock *	sk_alloc (struct net *net, int family, gfp_t priority, struct proto *prot)
	EXPORT_SYMBOL (sk_alloc)
void	sk_free (struct sock *sk)
	EXPORT_SYMBOL (sk_free)
void	sk_release_kernel (struct sock *sk)
	EXPORT_SYMBOL (sk_release_kernel)
struct sock *	sk_clone_lock (const struct sock *sk, const gfp_t priority)
	EXPORT_SYMBOL_GPL (sk_clone_lock)
void	sk_setup_caps (struct sock *sk, struct dst_entry *dst)
	EXPORT_SYMBOL_GPL (sk_setup_caps)
void	sock_wfree (struct sk_buff *skb)
	EXPORT_SYMBOL (sock_wfree)
void	sock_rfree (struct sk_buff *skb)
	EXPORT_SYMBOL (sock_rfree)
void	sock_edemux (struct sk_buff *skb)
	EXPORT_SYMBOL (sock_edemux)
kuid_t	sock_i_uid (struct sock *sk)
	EXPORT_SYMBOL (sock_i_uid)
unsigned long	sock_i_ino (struct sock *sk)
	EXPORT_SYMBOL (sock_i_ino)
struct sk_buff *	sock_wmalloc (struct sock *sk, unsigned long size, int force, gfp_t priority)
	EXPORT_SYMBOL (sock_wmalloc)
struct sk_buff *	sock_rmalloc (struct sock *sk, unsigned long size, int force, gfp_t priority)
void *	sock_kmalloc (struct sock *sk, int size, gfp_t priority)
	EXPORT_SYMBOL (sock_kmalloc)
void	sock_kfree_s (struct sock *sk, void *mem, int size)
	EXPORT_SYMBOL (sock_kfree_s)
struct sk_buff *	sock_alloc_send_pskb (struct sock *sk, unsigned long header_len, unsigned long data_len, int noblock, int *errcode)
	EXPORT_SYMBOL (sock_alloc_send_pskb)
struct sk_buff *	sock_alloc_send_skb (struct sock *sk, unsigned long size, int noblock, int *errcode)
	EXPORT_SYMBOL (sock_alloc_send_skb)
bool	sk_page_frag_refill (struct sock *sk, struct page_frag *pfrag)
	EXPORT_SYMBOL (sk_page_frag_refill)
int	sk_wait_data (struct sock *sk, long *timeo)
	EXPORT_SYMBOL (sk_wait_data)
int	__sk_mem_schedule (struct sock *sk, int size, int kind)
	EXPORT_SYMBOL (__sk_mem_schedule)
void	__sk_mem_reclaim (struct sock *sk)
	EXPORT_SYMBOL (__sk_mem_reclaim)
int	sock_no_bind (struct socket *sock, struct sockaddr *saddr, int len)
	EXPORT_SYMBOL (sock_no_bind)
int	sock_no_connect (struct socket *sock, struct sockaddr *saddr, int len, int flags)
	EXPORT_SYMBOL (sock_no_connect)
int	sock_no_socketpair (struct socket *sock1, struct socket *sock2)
	EXPORT_SYMBOL (sock_no_socketpair)
int	sock_no_accept (struct socket *sock, struct socket *newsock, int flags)
	EXPORT_SYMBOL (sock_no_accept)
int	sock_no_getname (struct socket *sock, struct sockaddr *saddr, int *len, int peer)
	EXPORT_SYMBOL (sock_no_getname)
unsigned int	sock_no_poll (struct file *file, struct socket *sock, poll_table *pt)
	EXPORT_SYMBOL (sock_no_poll)
int	sock_no_ioctl (struct socket *sock, unsigned int cmd, unsigned long arg)
	EXPORT_SYMBOL (sock_no_ioctl)
int	sock_no_listen (struct socket *sock, int backlog)
	EXPORT_SYMBOL (sock_no_listen)
int	sock_no_shutdown (struct socket *sock, int how)
	EXPORT_SYMBOL (sock_no_shutdown)
int	sock_no_setsockopt (struct socket *sock, int level, int optname, char __user *optval, unsigned int optlen)
	EXPORT_SYMBOL (sock_no_setsockopt)
int	sock_no_getsockopt (struct socket *sock, int level, int optname, char __user *optval, int __user *optlen)
	EXPORT_SYMBOL (sock_no_getsockopt)
int	sock_no_sendmsg (struct kiocb *iocb, struct socket *sock, struct msghdr *m, size_t len)
	EXPORT_SYMBOL (sock_no_sendmsg)
int	sock_no_recvmsg (struct kiocb *iocb, struct socket *sock, struct msghdr *m, size_t len, int flags)
	EXPORT_SYMBOL (sock_no_recvmsg)
int	sock_no_mmap (struct file *file, struct socket *sock, struct vm_area_struct *vma)
	EXPORT_SYMBOL (sock_no_mmap)
ssize_t	sock_no_sendpage (struct socket *sock, struct page *page, int offset, size_t size, int flags)
	EXPORT_SYMBOL (sock_no_sendpage)
void	sk_send_sigurg (struct sock *sk)
	EXPORT_SYMBOL (sk_send_sigurg)
void	sk_reset_timer (struct sock *sk, struct timer_list *timer, unsigned long expires)
	EXPORT_SYMBOL (sk_reset_timer)
void	sk_stop_timer (struct sock *sk, struct timer_list *timer)
	EXPORT_SYMBOL (sk_stop_timer)
void	sock_init_data (struct socket *sock, struct sock *sk)
	EXPORT_SYMBOL (sock_init_data)
void	lock_sock_nested (struct sock *sk, int subclass)
	EXPORT_SYMBOL (lock_sock_nested)
void	release_sock (struct sock *sk)
	EXPORT_SYMBOL (release_sock)
bool	lock_sock_fast (struct sock *sk)
	EXPORT_SYMBOL (lock_sock_fast)
int	sock_get_timestamp (struct sock *sk, struct timeval __user *userstamp)
	EXPORT_SYMBOL (sock_get_timestamp)
int	sock_get_timestampns (struct sock *sk, struct timespec __user *userstamp)
	EXPORT_SYMBOL (sock_get_timestampns)
void	sock_enable_timestamp (struct sock *sk, int flag)
int	sock_common_getsockopt (struct socket *sock, int level, int optname, char __user *optval, int __user *optlen)
	EXPORT_SYMBOL (sock_common_getsockopt)
int	sock_common_recvmsg (struct kiocb *iocb, struct socket *sock, struct msghdr *msg, size_t size, int flags)
	EXPORT_SYMBOL (sock_common_recvmsg)
int	sock_common_setsockopt (struct socket *sock, int level, int optname, char __user *optval, unsigned int optlen)
	EXPORT_SYMBOL (sock_common_setsockopt)
void	sk_common_release (struct sock *sk)
	EXPORT_SYMBOL (sk_common_release)
int	proto_register (struct proto *prot, int alloc_slab)
	EXPORT_SYMBOL (proto_register)
void	proto_unregister (struct proto *prot)
	EXPORT_SYMBOL (proto_unregister)

Variables
struct static_key	memcg_socket_limit_enabled
__u32 sysctl_wmem_max	__read_mostly = SK_WMEM_MAX
struct static_key	memalloc_socks = STATIC_KEY_INIT_FALSE

Macro Definition Documentation

#define _SK_MEM_OVERHEAD   SKB_TRUESIZE(256)

Definition at line 258 of file sock.c.

#define _SK_MEM_PACKETS   256

Definition at line 257 of file sock.c.

#define pr_fmt

(

fmt

)

KBUILD_MODNAME ": " fmt

Definition at line 92 of file sock.c.

#define SK_FLAGS_TIMESTAMP   ((1UL << SOCK_TIMESTAMP) | (1UL << SOCK_TIMESTAMPING_RX_SOFTWARE))

Definition at line 371 of file sock.c.

#define SK_RMEM_MAX   (_SK_MEM_OVERHEAD * _SK_MEM_PACKETS)

Definition at line 260 of file sock.c.

#define SK_WMEM_MAX   (_SK_MEM_OVERHEAD * _SK_MEM_PACKETS)

Definition at line 259 of file sock.c.

#define SKB_FRAG_PAGE_ORDER   get_order(32768)

Definition at line 1729 of file sock.c.

Function Documentation

int __sk_backlog_rcv	(	struct sock *	sk,
		struct sk_buff *	skb
	)

Definition at line 313 of file sock.c.

struct dst_entry* __sk_dst_check ( struct sock *  sk, u32  cookie  )

read

Definition at line 479 of file sock.c.

void __sk_mem_reclaim

(

struct sock *

sk

)

__sk_reclaim - reclaim memory_allocated : socket

Definition at line 1940 of file sock.c.

int __sk_mem_schedule	(	struct sock *	sk,
		int	size,
		int	kind
	)

__sk_mem_schedule - increase sk_forward_alloc and memory_allocated : socket : memory size to allocate : allocation type

If kind is SK_MEM_SEND, it means wmem allocation. Otherwise it means rmem allocation. This function assumes that protocols which have memory_pressure use sk_wmem_queued as write buffer accounting.

Definition at line 1858 of file sock.c.

void cred_to_ucred	(	struct pid *	pid,
		const struct cred *	cred,
		struct ucred *	ucred
	)

Definition at line 853 of file sock.c.

EXPORT_SYMBOL

(

memcg_socket_limit_enabled

)

EXPORT_SYMBOL

(

sysctl_wmem_max

)

EXPORT_SYMBOL

(

sysctl_rmem_max

)

EXPORT_SYMBOL

(

sysctl_optmem_max

)

EXPORT_SYMBOL

(

__sk_backlog_rcv

)

EXPORT_SYMBOL

(

sock_queue_rcv_skb

)

EXPORT_SYMBOL

(

sk_receive_skb

)

EXPORT_SYMBOL

(

sk_reset_txq

)

EXPORT_SYMBOL

(

__sk_dst_check

)

EXPORT_SYMBOL

(

sk_dst_check

)

EXPORT_SYMBOL

(

sock_setsockopt

)

EXPORT_SYMBOL

(

sk_prot_clear_portaddr_nulls

)

EXPORT_SYMBOL

(

sk_alloc

)

EXPORT_SYMBOL

(

sk_free

)

EXPORT_SYMBOL

(

sk_release_kernel

)

EXPORT_SYMBOL

(

sock_wfree

)

EXPORT_SYMBOL

(

sock_rfree

)

EXPORT_SYMBOL

(

sock_edemux

)

EXPORT_SYMBOL

(

sock_i_uid

)

EXPORT_SYMBOL

(

sock_i_ino

)

EXPORT_SYMBOL

(

sock_wmalloc

)

EXPORT_SYMBOL

(

sock_kmalloc

)

EXPORT_SYMBOL

(

sock_kfree_s

)

EXPORT_SYMBOL

(

sock_alloc_send_pskb

)

EXPORT_SYMBOL

(

sock_alloc_send_skb

)

EXPORT_SYMBOL

(

sk_page_frag_refill

)

EXPORT_SYMBOL

(

sk_wait_data

)

EXPORT_SYMBOL

(

__sk_mem_schedule

)

EXPORT_SYMBOL

(

__sk_mem_reclaim

)

EXPORT_SYMBOL

(

sock_no_bind

)

EXPORT_SYMBOL

(

sock_no_connect

)

EXPORT_SYMBOL

(

sock_no_socketpair

)

EXPORT_SYMBOL

(

sock_no_accept

)

EXPORT_SYMBOL

(

sock_no_getname

)

EXPORT_SYMBOL

(

sock_no_poll

)

EXPORT_SYMBOL

(

sock_no_ioctl

)

EXPORT_SYMBOL

(

sock_no_listen

)

EXPORT_SYMBOL

(

sock_no_shutdown

)

EXPORT_SYMBOL

(

sock_no_setsockopt

)

EXPORT_SYMBOL

(

sock_no_getsockopt

)

EXPORT_SYMBOL

(

sock_no_sendmsg

)

EXPORT_SYMBOL

(

sock_no_recvmsg

)

EXPORT_SYMBOL

(

sock_no_mmap

)

EXPORT_SYMBOL

(

sock_no_sendpage

)

EXPORT_SYMBOL

(

sk_send_sigurg

)

EXPORT_SYMBOL

(

sk_reset_timer

)

EXPORT_SYMBOL

(

sk_stop_timer

)

EXPORT_SYMBOL

(

sock_init_data

)

EXPORT_SYMBOL

(

lock_sock_nested

)

EXPORT_SYMBOL

(

release_sock

)

EXPORT_SYMBOL

(

lock_sock_fast

)

EXPORT_SYMBOL

(

sock_get_timestamp

)

EXPORT_SYMBOL

(

sock_get_timestampns

)

EXPORT_SYMBOL

(

sock_common_getsockopt

)

EXPORT_SYMBOL

(

sock_common_recvmsg

)

EXPORT_SYMBOL

(

sock_common_setsockopt

)

EXPORT_SYMBOL

(

sk_common_release

)

EXPORT_SYMBOL

(

proto_register

)

EXPORT_SYMBOL

(

proto_unregister

)

EXPORT_SYMBOL_GPL

(

memalloc_socks

)

EXPORT_SYMBOL_GPL

(

sk_set_memalloc

)

EXPORT_SYMBOL_GPL

(

sk_clear_memalloc

)

EXPORT_SYMBOL_GPL

(

cred_to_ucred

)

EXPORT_SYMBOL_GPL

(

sk_clone_lock

)

EXPORT_SYMBOL_GPL

(

sk_setup_caps

)

bool lock_sock_fast

(

struct sock *

sk

)

lock_sock_fast - fast version of lock_sock : socket

This version should be used for very small section, where process wont block return false if fast path is taken sk_lock.slock locked, owned = 0, BH disabled return true if slow path is taken sk_lock.slock unlocked, owned = 1, BH enabled

Definition at line 2266 of file sock.c.

void lock_sock_nested	(	struct sock *	sk,
		int	subclass
	)

Definition at line 2219 of file sock.c.

int proto_register	(	struct proto *	prot,
		int	alloc_slab
	)

Definition at line 2551 of file sock.c.

void proto_unregister

(

struct proto *

prot

)

Definition at line 2622 of file sock.c.

void release_sock

(

struct sock *

sk

)

Definition at line 2235 of file sock.c.

struct sock* sk_alloc ( struct net *  net, int  family, gfp_t  priority, struct proto *  prot  )

read

sk_alloc - All socket objects are allocated here : the applicable net namespace : protocol family : for allocation (GFP_KERNEL, GFP_ATOMIC, etc) : struct proto associated with this new sock instance

Definition at line 1249 of file sock.c.

void sk_clear_memalloc

(

struct sock *

sk

)

Definition at line 293 of file sock.c.

struct sock* sk_clone_lock ( const struct sock *  sk, const gfp_t  priority  )

read

sk_clone_lock - clone a socket, and lock its clone : the socket to clone : for allocation (GFP_KERNEL, GFP_ATOMIC, etc)

Caller must unlock socket even in error path (bh_unlock_sock(newsk))

Definition at line 1346 of file sock.c.

void sk_common_release

(

struct sock *

sk

)

Definition at line 2408 of file sock.c.

struct dst_entry* sk_dst_check ( struct sock *  sk, u32  cookie  )

read

Definition at line 494 of file sock.c.

void sk_free

(

struct sock *

sk

)

Definition at line 1301 of file sock.c.

bool sk_page_frag_refill	(	struct sock *	sk,
		struct page_frag *	pfrag
	)

Definition at line 1731 of file sock.c.

void sk_prot_clear_portaddr_nulls	(	struct sock *	sk,
		int	size
	)

Definition at line 1138 of file sock.c.

int sk_receive_skb	(	struct sock *	sk,
		struct sk_buff *	skb,
		const int	nested
	)

Definition at line 431 of file sock.c.

void sk_release_kernel

(

struct sock *

sk

)

Definition at line 1320 of file sock.c.

void sk_reset_timer	(	struct sock *	sk,
		struct timer_list *	timer,
		unsigned long	expires
	)

Definition at line 2141 of file sock.c.

void sk_reset_txq

(

struct sock *

sk

)

Definition at line 473 of file sock.c.

void sk_send_sigurg

(

struct sock *

sk

)

Definition at line 2133 of file sock.c.

void sk_set_memalloc

(

struct sock *

sk

)

sk_set_memalloc - sets SOCK_MEMALLOC : socket to set it on

Set SOCK_MEMALLOC on a socket for access to emergency reserves. It's the responsibility of the admin to adjust min_free_kbytes to meet the requirements

Definition at line 285 of file sock.c.

void sk_setup_caps	(	struct sock *	sk,
		struct dst_entry *	dst
	)

Definition at line 1442 of file sock.c.

void sk_stop_timer	(	struct sock *	sk,
		struct timer_list *	timer
	)

Definition at line 2149 of file sock.c.

int sk_wait_data	(	struct sock *	sk,
		long *	timeo
	)

sk_wait_data - wait for data to arrive at sk_receive_queue : sock to wait on : for how long

Now socket state including sk->sk_err is changed only under lock, hence we may omit checks after joining wait queue. We check receive queue before schedule() only as optimization; it is very likely that release_sock() added new data.

Definition at line 1834 of file sock.c.

struct sk_buff* sock_alloc_send_pskb ( struct sock *  sk, unsigned long  header_len, unsigned long  data_len, int  noblock, int *  errcode  )

read

Definition at line 1636 of file sock.c.

struct sk_buff* sock_alloc_send_skb ( struct sock *  sk, unsigned long  size, int  noblock, int *  errcode  )

read

Definition at line 1721 of file sock.c.

int sock_common_getsockopt	(	struct socket *	sock,
		int	level,
		int	optname,
		char __user *	optval,
		int __user *	optlen
	)

Definition at line 2344 of file sock.c.

int sock_common_recvmsg	(	struct kiocb *	iocb,
		struct socket *	sock,
		struct msghdr *	msg,
		size_t	size,
		int	flags
	)

Definition at line 2367 of file sock.c.

int sock_common_setsockopt	(	struct socket *	sock,
		int	level,
		int	optname,
		char __user *	optval,
		unsigned int	optlen
	)

Definition at line 2385 of file sock.c.

void sock_edemux

(

struct sk_buff *

skb

)

Definition at line 1505 of file sock.c.

void sock_enable_timestamp	(	struct sock *	sk,
		int	flag
	)

Definition at line 2321 of file sock.c.

int sock_get_timestamp	(	struct sock *	sk,
		struct timeval __user *	userstamp
	)

Definition at line 2289 of file sock.c.

int sock_get_timestampns	(	struct sock *	sk,
		struct timespec __user *	userstamp
	)

Definition at line 2305 of file sock.c.

int sock_getsockopt	(	struct socket *	sock,
		int	level,
		int	optname,
		char __user *	optval,
		int __user *	optlen
	)

Definition at line 867 of file sock.c.

unsigned long sock_i_ino

(

struct sock *

sk

)

Definition at line 1529 of file sock.c.

kuid_t sock_i_uid

(

struct sock *

sk

)

Definition at line 1518 of file sock.c.

void sock_init_data	(	struct socket *	sock,
		struct sock *	sk
	)

Definition at line 2156 of file sock.c.

void sock_kfree_s	(	struct sock *	sk,
		void *	mem,
		int	size
	)

Definition at line 1597 of file sock.c.

void* sock_kmalloc	(	struct sock *	sk,
		int	size,
		gfp_t	priority
	)

Definition at line 1576 of file sock.c.

int sock_no_accept	(	struct socket *	sock,
		struct socket *	newsock,
		int	flags
	)

Definition at line 1979 of file sock.c.

int sock_no_bind	(	struct socket *	sock,
		struct sockaddr *	saddr,
		int	len
	)

Definition at line 1960 of file sock.c.

int sock_no_connect	(	struct socket *	sock,
		struct sockaddr *	saddr,
		int	len,
		int	flags
	)

Definition at line 1966 of file sock.c.

int sock_no_getname	(	struct socket *	sock,
		struct sockaddr *	saddr,
		int *	len,
		int	peer
	)

Definition at line 1985 of file sock.c.

int sock_no_getsockopt	(	struct socket *	sock,
		int	level,
		int	optname,
		char __user *	optval,
		int __user *	optlen
	)

Definition at line 2023 of file sock.c.

int sock_no_ioctl	(	struct socket *	sock,
		unsigned int	cmd,
		unsigned long	arg
	)

Definition at line 1998 of file sock.c.

int sock_no_listen	(	struct socket *	sock,
		int	backlog
	)

Definition at line 2004 of file sock.c.

int sock_no_mmap	(	struct file *	file,
		struct socket *	sock,
		struct vm_area_struct *	vma
	)

Definition at line 2044 of file sock.c.

unsigned int sock_no_poll	(	struct file *	file,
		struct socket *	sock,
		poll_table *	pt
	)

Definition at line 1992 of file sock.c.

int sock_no_recvmsg	(	struct kiocb *	iocb,
		struct socket *	sock,
		struct msghdr *	m,
		size_t	len,
		int	flags
	)

Definition at line 2037 of file sock.c.

int sock_no_sendmsg	(	struct kiocb *	iocb,
		struct socket *	sock,
		struct msghdr *	m,
		size_t	len
	)

Definition at line 2030 of file sock.c.

ssize_t sock_no_sendpage	(	struct socket *	sock,
		struct page *	page,
		int	offset,
		size_t	size,
		int	flags
	)

Definition at line 2051 of file sock.c.

int sock_no_setsockopt	(	struct socket *	sock,
		int	level,
		int	optname,
		char __user *	optval,
		unsigned int	optlen
	)

Definition at line 2016 of file sock.c.

int sock_no_shutdown	(	struct socket *	sock,
		int	how
	)

Definition at line 2010 of file sock.c.

int sock_no_socketpair	(	struct socket *	sock1,
		struct socket *	sock2
	)

Definition at line 1973 of file sock.c.

int sock_queue_rcv_skb	(	struct sock *	sk,
		struct sk_buff *	skb
	)

Definition at line 383 of file sock.c.

void sock_rfree

(

struct sk_buff *

skb

)

Definition at line 1495 of file sock.c.

struct sk_buff* sock_rmalloc ( struct sock *  sk, unsigned long  size, int  force, gfp_t  priority  )

read

Definition at line 1560 of file sock.c.

int sock_setsockopt	(	struct socket *	sock,
		int	level,
		int	optname,
		char __user *	optval,
		unsigned int	optlen
	)

Definition at line 578 of file sock.c.

void sock_wfree

(

struct sk_buff *

skb

)

Definition at line 1469 of file sock.c.

struct sk_buff* sock_wmalloc ( struct sock *  sk, unsigned long  size, int  force, gfp_t  priority  )

read

Definition at line 1543 of file sock.c.

Variable Documentation

int sysctl_optmem_max __read_mostly = SK_WMEM_MAX

Definition at line 263 of file sock.c.

struct static_key memalloc_socks = STATIC_KEY_INIT_FALSE

Definition at line 274 of file sock.c.

struct static_key memcg_socket_limit_enabled

Definition at line 189 of file sock.c.