11da177e4SLinus Torvalds /* 21da177e4SLinus Torvalds * NET An implementation of the SOCKET network access protocol. 31da177e4SLinus Torvalds * This is the master header file for the Linux NET layer, 41da177e4SLinus Torvalds * or, in plain English: the networking handling part of the 51da177e4SLinus Torvalds * kernel. 61da177e4SLinus Torvalds * 71da177e4SLinus Torvalds * Version: @(#)net.h 1.0.3 05/25/93 81da177e4SLinus Torvalds * 91da177e4SLinus Torvalds * Authors: Orest Zborowski, <obz@Kodak.COM> 1002c30a84SJesper Juhl * Ross Biro 111da177e4SLinus Torvalds * Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG> 121da177e4SLinus Torvalds * 131da177e4SLinus Torvalds * This program is free software; you can redistribute it and/or 141da177e4SLinus Torvalds * modify it under the terms of the GNU General Public License 151da177e4SLinus Torvalds * as published by the Free Software Foundation; either version 161da177e4SLinus Torvalds * 2 of the License, or (at your option) any later version. 171da177e4SLinus Torvalds */ 181da177e4SLinus Torvalds #ifndef _LINUX_NET_H 191da177e4SLinus Torvalds #define _LINUX_NET_H 201da177e4SLinus Torvalds 21eacf17bdSDavid Woodhouse #include <linux/stringify.h> 22cb4db4c2SDavid Woodhouse #include <linux/random.h> 235770a3fbSDavid Woodhouse #include <linux/wait.h> 245770a3fbSDavid Woodhouse #include <linux/fcntl.h> /* For O_CLOEXEC and O_NONBLOCK */ 2543815482SEric Dumazet #include <linux/rcupdate.h> 2646234253SHannes Frederic Sowa #include <linux/once.h> 270294b625STom Herbert #include <linux/fs.h> 2846234253SHannes Frederic Sowa 29607ca46eSDavid Howells #include <uapi/linux/net.h> 305770a3fbSDavid Woodhouse 315770a3fbSDavid Woodhouse struct poll_table_struct; 325770a3fbSDavid Woodhouse struct pipe_inode_info; 335770a3fbSDavid Woodhouse struct inode; 3456b31d1cSAl Viro struct file; 355770a3fbSDavid Woodhouse struct net; 361da177e4SLinus Torvalds 37ceb5d58bSEric Dumazet /* Historically, SOCKWQ_ASYNC_NOSPACE & SOCKWQ_ASYNC_WAITDATA were located 38ceb5d58bSEric Dumazet * in sock->flags, but moved into sk->sk_wq->flags to be RCU protected. 39b3dc8f77STonghao Zhang * Eventually all flags will be in sk->sk_wq->flags. 40ceb5d58bSEric Dumazet */ 419cd3e072SEric Dumazet #define SOCKWQ_ASYNC_NOSPACE 0 429cd3e072SEric Dumazet #define SOCKWQ_ASYNC_WAITDATA 1 431da177e4SLinus Torvalds #define SOCK_NOSPACE 2 441da177e4SLinus Torvalds #define SOCK_PASSCRED 3 45877ce7c1SCatherine Zhang #define SOCK_PASSSEC 4 461da177e4SLinus Torvalds 471da177e4SLinus Torvalds #ifndef ARCH_HAS_SOCKET_TYPES 484dc3b16bSPavel Pisa /** 494dc3b16bSPavel Pisa * enum sock_type - Socket types 504dc3b16bSPavel Pisa * @SOCK_STREAM: stream (connection) socket 514dc3b16bSPavel Pisa * @SOCK_DGRAM: datagram (conn.less) socket 524dc3b16bSPavel Pisa * @SOCK_RAW: raw socket 534dc3b16bSPavel Pisa * @SOCK_RDM: reliably-delivered message 544dc3b16bSPavel Pisa * @SOCK_SEQPACKET: sequential packet socket 558f2709b5SRandy Dunlap * @SOCK_DCCP: Datagram Congestion Control Protocol socket 564dc3b16bSPavel Pisa * @SOCK_PACKET: linux specific way of getting packets at the dev level. 574dc3b16bSPavel Pisa * For writing rarp and other similar things on the user level. 581da177e4SLinus Torvalds * 591da177e4SLinus Torvalds * When adding some new socket type please 601da177e4SLinus Torvalds * grep ARCH_HAS_SOCKET_TYPE include/asm-* /socket.h, at least MIPS 611da177e4SLinus Torvalds * overrides this enum for binary compat reasons. 621da177e4SLinus Torvalds */ 631da177e4SLinus Torvalds enum sock_type { 641da177e4SLinus Torvalds SOCK_STREAM = 1, 651da177e4SLinus Torvalds SOCK_DGRAM = 2, 661da177e4SLinus Torvalds SOCK_RAW = 3, 671da177e4SLinus Torvalds SOCK_RDM = 4, 681da177e4SLinus Torvalds SOCK_SEQPACKET = 5, 697c657876SArnaldo Carvalho de Melo SOCK_DCCP = 6, 701da177e4SLinus Torvalds SOCK_PACKET = 10, 711da177e4SLinus Torvalds }; 721da177e4SLinus Torvalds 731da177e4SLinus Torvalds #define SOCK_MAX (SOCK_PACKET + 1) 74a677a039SUlrich Drepper /* Mask which covers at least up to SOCK_MASK-1. The 75a677a039SUlrich Drepper * remaining bits are used as flags. */ 76a677a039SUlrich Drepper #define SOCK_TYPE_MASK 0xf 77a677a039SUlrich Drepper 78de11defeSUlrich Drepper /* Flags for socket, socketpair, accept4 */ 79a677a039SUlrich Drepper #define SOCK_CLOEXEC O_CLOEXEC 80c019bbc6SUlrich Drepper #ifndef SOCK_NONBLOCK 81c019bbc6SUlrich Drepper #define SOCK_NONBLOCK O_NONBLOCK 82c019bbc6SUlrich Drepper #endif 831da177e4SLinus Torvalds 841da177e4SLinus Torvalds #endif /* ARCH_HAS_SOCKET_TYPES */ 851da177e4SLinus Torvalds 86*8a3c245cSPedro Tammela /** 87*8a3c245cSPedro Tammela * enum sock_shutdown_cmd - Shutdown types 88*8a3c245cSPedro Tammela * @SHUT_RD: shutdown receptions 89*8a3c245cSPedro Tammela * @SHUT_WR: shutdown transmissions 90*8a3c245cSPedro Tammela * @SHUT_RDWR: shutdown receptions/transmissions 91*8a3c245cSPedro Tammela */ 9291cf45f0STrond Myklebust enum sock_shutdown_cmd { 930e9649c1SJean Sacren SHUT_RD, 940e9649c1SJean Sacren SHUT_WR, 950e9649c1SJean Sacren SHUT_RDWR, 9691cf45f0STrond Myklebust }; 9791cf45f0STrond Myklebust 9843815482SEric Dumazet struct socket_wq { 99eaefd110SEric Dumazet /* Note: wait MUST be first field of socket_wq */ 10043815482SEric Dumazet wait_queue_head_t wait; 10143815482SEric Dumazet struct fasync_struct *fasync_list; 102ceb5d58bSEric Dumazet unsigned long flags; /* %SOCKWQ_ASYNC_NOSPACE, etc */ 10343815482SEric Dumazet struct rcu_head rcu; 10443815482SEric Dumazet } ____cacheline_aligned_in_smp; 10543815482SEric Dumazet 1061da177e4SLinus Torvalds /** 1071da177e4SLinus Torvalds * struct socket - general BSD socket 1084dc3b16bSPavel Pisa * @state: socket state (%SS_CONNECTED, etc) 1092c693610SRichard Kennedy * @type: socket type (%SOCK_STREAM, etc) 1109cd3e072SEric Dumazet * @flags: socket flags (%SOCK_NOSPACE, etc) 1114dc3b16bSPavel Pisa * @ops: protocol specific socket operations 1124dc3b16bSPavel Pisa * @file: File back pointer for gc 1134dc3b16bSPavel Pisa * @sk: internal networking protocol agnostic socket representation 114e2aec372SRandy Dunlap * @wq: wait queue for several uses 1151da177e4SLinus Torvalds */ 1161da177e4SLinus Torvalds struct socket { 1171da177e4SLinus Torvalds socket_state state; 11829a020d3SEric Dumazet 1192c693610SRichard Kennedy short type; 12029a020d3SEric Dumazet 1211da177e4SLinus Torvalds unsigned long flags; 12243815482SEric Dumazet 123e6476c21SChristoph Hellwig struct socket_wq *wq; 1248bdd663aSEric Dumazet 1251da177e4SLinus Torvalds struct file *file; 1261da177e4SLinus Torvalds struct sock *sk; 1278bdd663aSEric Dumazet const struct proto_ops *ops; 1281da177e4SLinus Torvalds }; 1291da177e4SLinus Torvalds 1301da177e4SLinus Torvalds struct vm_area_struct; 1311da177e4SLinus Torvalds struct page; 1321da177e4SLinus Torvalds struct sockaddr; 1331da177e4SLinus Torvalds struct msghdr; 1341da177e4SLinus Torvalds struct module; 1350294b625STom Herbert struct sk_buff; 1360294b625STom Herbert typedef int (*sk_read_actor_t)(read_descriptor_t *, struct sk_buff *, 1370294b625STom Herbert unsigned int, size_t); 1381da177e4SLinus Torvalds 1391da177e4SLinus Torvalds struct proto_ops { 1401da177e4SLinus Torvalds int family; 1411da177e4SLinus Torvalds struct module *owner; 1421da177e4SLinus Torvalds int (*release) (struct socket *sock); 1431da177e4SLinus Torvalds int (*bind) (struct socket *sock, 1441da177e4SLinus Torvalds struct sockaddr *myaddr, 1451da177e4SLinus Torvalds int sockaddr_len); 1461da177e4SLinus Torvalds int (*connect) (struct socket *sock, 1471da177e4SLinus Torvalds struct sockaddr *vaddr, 1481da177e4SLinus Torvalds int sockaddr_len, int flags); 1491da177e4SLinus Torvalds int (*socketpair)(struct socket *sock1, 1501da177e4SLinus Torvalds struct socket *sock2); 1511da177e4SLinus Torvalds int (*accept) (struct socket *sock, 152cdfbabfbSDavid Howells struct socket *newsock, int flags, bool kern); 1531da177e4SLinus Torvalds int (*getname) (struct socket *sock, 1541da177e4SLinus Torvalds struct sockaddr *addr, 1559b2c45d4SDenys Vlasenko int peer); 156a3f8683bSAl Viro __poll_t (*poll) (struct file *file, struct socket *sock, 1571da177e4SLinus Torvalds struct poll_table_struct *wait); 1581da177e4SLinus Torvalds int (*ioctl) (struct socket *sock, unsigned int cmd, 1591da177e4SLinus Torvalds unsigned long arg); 1601621e094SAlexey Dobriyan #ifdef CONFIG_COMPAT 16189bbfc95SShaun Pereira int (*compat_ioctl) (struct socket *sock, unsigned int cmd, 16289bbfc95SShaun Pereira unsigned long arg); 1631621e094SAlexey Dobriyan #endif 1641da177e4SLinus Torvalds int (*listen) (struct socket *sock, int len); 1651da177e4SLinus Torvalds int (*shutdown) (struct socket *sock, int flags); 1661da177e4SLinus Torvalds int (*setsockopt)(struct socket *sock, int level, 167b7058842SDavid S. Miller int optname, char __user *optval, unsigned int optlen); 1681da177e4SLinus Torvalds int (*getsockopt)(struct socket *sock, int level, 1691da177e4SLinus Torvalds int optname, char __user *optval, int __user *optlen); 1701621e094SAlexey Dobriyan #ifdef CONFIG_COMPAT 1713fdadf7dSDmitry Mishin int (*compat_setsockopt)(struct socket *sock, int level, 172b7058842SDavid S. Miller int optname, char __user *optval, unsigned int optlen); 1733fdadf7dSDmitry Mishin int (*compat_getsockopt)(struct socket *sock, int level, 1743fdadf7dSDmitry Mishin int optname, char __user *optval, int __user *optlen); 1751621e094SAlexey Dobriyan #endif 1761b784140SYing Xue int (*sendmsg) (struct socket *sock, struct msghdr *m, 1771b784140SYing Xue size_t total_len); 178f3d33426SHannes Frederic Sowa /* Notes for implementing recvmsg: 179f3d33426SHannes Frederic Sowa * =============================== 180f3d33426SHannes Frederic Sowa * msg->msg_namelen should get updated by the recvmsg handlers 181f3d33426SHannes Frederic Sowa * iff msg_name != NULL. It is by default 0 to prevent 182f3d33426SHannes Frederic Sowa * returning uninitialized memory to user space. The recvfrom 183f3d33426SHannes Frederic Sowa * handlers can assume that msg.msg_name is either NULL or has 184f3d33426SHannes Frederic Sowa * a minimum size of sizeof(struct sockaddr_storage). 185f3d33426SHannes Frederic Sowa */ 1861b784140SYing Xue int (*recvmsg) (struct socket *sock, struct msghdr *m, 1871b784140SYing Xue size_t total_len, int flags); 1881da177e4SLinus Torvalds int (*mmap) (struct file *file, struct socket *sock, 1891da177e4SLinus Torvalds struct vm_area_struct * vma); 1901da177e4SLinus Torvalds ssize_t (*sendpage) (struct socket *sock, struct page *page, 1911da177e4SLinus Torvalds int offset, size_t size, int flags); 1929c55e01cSJens Axboe ssize_t (*splice_read)(struct socket *sock, loff_t *ppos, 1939c55e01cSJens Axboe struct pipe_inode_info *pipe, size_t len, unsigned int flags); 19412663bfcSSasha Levin int (*set_peek_off)(struct sock *sk, int val); 1951576d986SJason Wang int (*peek_len)(struct socket *sock); 196306b13ebSTom Herbert 197306b13ebSTom Herbert /* The following functions are called internally by kernel with 198306b13ebSTom Herbert * sock lock already held. 199306b13ebSTom Herbert */ 2000294b625STom Herbert int (*read_sock)(struct sock *sk, read_descriptor_t *desc, 2010294b625STom Herbert sk_read_actor_t recv_actor); 202306b13ebSTom Herbert int (*sendpage_locked)(struct sock *sk, struct page *page, 203306b13ebSTom Herbert int offset, size_t size, int flags); 204306b13ebSTom Herbert int (*sendmsg_locked)(struct sock *sk, struct msghdr *msg, 205306b13ebSTom Herbert size_t size); 206d1361840SEric Dumazet int (*set_rcvlowat)(struct sock *sk, int val); 2071da177e4SLinus Torvalds }; 2081da177e4SLinus Torvalds 20938bfd8f5SCyrill Gorcunov #define DECLARE_SOCKADDR(type, dst, src) \ 21038bfd8f5SCyrill Gorcunov type dst = ({ __sockaddr_check_size(sizeof(*dst)); (type) src; }) 21138bfd8f5SCyrill Gorcunov 2121da177e4SLinus Torvalds struct net_proto_family { 2131da177e4SLinus Torvalds int family; 2143f378b68SEric Paris int (*create)(struct net *net, struct socket *sock, 2153f378b68SEric Paris int protocol, int kern); 2161da177e4SLinus Torvalds struct module *owner; 2171da177e4SLinus Torvalds }; 2181da177e4SLinus Torvalds 2191da177e4SLinus Torvalds struct iovec; 2201da177e4SLinus Torvalds struct kvec; 2211da177e4SLinus Torvalds 2228d8ad9d7SPavel Emelyanov enum { 2238d8ad9d7SPavel Emelyanov SOCK_WAKE_IO, 2248d8ad9d7SPavel Emelyanov SOCK_WAKE_WAITD, 2258d8ad9d7SPavel Emelyanov SOCK_WAKE_SPACE, 2268d8ad9d7SPavel Emelyanov SOCK_WAKE_URG, 2278d8ad9d7SPavel Emelyanov }; 2288d8ad9d7SPavel Emelyanov 229ceb5d58bSEric Dumazet int sock_wake_async(struct socket_wq *sk_wq, int how, int band); 2307965bd4dSJoe Perches int sock_register(const struct net_proto_family *fam); 2317965bd4dSJoe Perches void sock_unregister(int family); 232bf2ae2e4SXin Long bool sock_is_registered(int family); 2337965bd4dSJoe Perches int __sock_create(struct net *net, int family, int type, int proto, 234721db93aSPavel Emelyanov struct socket **res, int kern); 2357965bd4dSJoe Perches int sock_create(int family, int type, int proto, struct socket **res); 236eeb1bd5cSEric W. Biederman int sock_create_kern(struct net *net, int family, int type, int proto, struct socket **res); 2377965bd4dSJoe Perches int sock_create_lite(int family, int type, int proto, struct socket **res); 238f4a00aacSTom Herbert struct socket *sock_alloc(void); 2397965bd4dSJoe Perches void sock_release(struct socket *sock); 240d8725c86SAl Viro int sock_sendmsg(struct socket *sock, struct msghdr *msg); 2412da62906SAl Viro int sock_recvmsg(struct socket *sock, struct msghdr *msg, int flags); 2427965bd4dSJoe Perches struct file *sock_alloc_file(struct socket *sock, int flags, const char *dname); 2437965bd4dSJoe Perches struct socket *sockfd_lookup(int fd, int *err); 2447965bd4dSJoe Perches struct socket *sock_from_file(struct file *file, int *err); 2451da177e4SLinus Torvalds #define sockfd_put(sock) fput(sock->file) 2467965bd4dSJoe Perches int net_ratelimit(void); 247aaa248f6SStephen Hemminger 2483a3bfb61SJoe Perches #define net_ratelimited_function(function, ...) \ 2493a3bfb61SJoe Perches do { \ 2503a3bfb61SJoe Perches if (net_ratelimit()) \ 2513a3bfb61SJoe Perches function(__VA_ARGS__); \ 2523a3bfb61SJoe Perches } while (0) 2533a3bfb61SJoe Perches 2543a3bfb61SJoe Perches #define net_emerg_ratelimited(fmt, ...) \ 2553a3bfb61SJoe Perches net_ratelimited_function(pr_emerg, fmt, ##__VA_ARGS__) 2563a3bfb61SJoe Perches #define net_alert_ratelimited(fmt, ...) \ 2573a3bfb61SJoe Perches net_ratelimited_function(pr_alert, fmt, ##__VA_ARGS__) 2583a3bfb61SJoe Perches #define net_crit_ratelimited(fmt, ...) \ 2593a3bfb61SJoe Perches net_ratelimited_function(pr_crit, fmt, ##__VA_ARGS__) 2603a3bfb61SJoe Perches #define net_err_ratelimited(fmt, ...) \ 2613a3bfb61SJoe Perches net_ratelimited_function(pr_err, fmt, ##__VA_ARGS__) 2623a3bfb61SJoe Perches #define net_notice_ratelimited(fmt, ...) \ 2633a3bfb61SJoe Perches net_ratelimited_function(pr_notice, fmt, ##__VA_ARGS__) 2643a3bfb61SJoe Perches #define net_warn_ratelimited(fmt, ...) \ 2653a3bfb61SJoe Perches net_ratelimited_function(pr_warn, fmt, ##__VA_ARGS__) 2663a3bfb61SJoe Perches #define net_info_ratelimited(fmt, ...) \ 2673a3bfb61SJoe Perches net_ratelimited_function(pr_info, fmt, ##__VA_ARGS__) 2682c94b537STim Bingham #if defined(CONFIG_DYNAMIC_DEBUG) 2692c94b537STim Bingham #define net_dbg_ratelimited(fmt, ...) \ 2702c94b537STim Bingham do { \ 2712c94b537STim Bingham DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, fmt); \ 2723f16d181SRasmus Villemoes if (DYNAMIC_DEBUG_BRANCH(descriptor) && \ 2732c94b537STim Bingham net_ratelimit()) \ 274daddef76SJason A. Donenfeld __dynamic_pr_debug(&descriptor, pr_fmt(fmt), \ 275daddef76SJason A. Donenfeld ##__VA_ARGS__); \ 2762c94b537STim Bingham } while (0) 2772c94b537STim Bingham #elif defined(DEBUG) 2783a3bfb61SJoe Perches #define net_dbg_ratelimited(fmt, ...) \ 2793a3bfb61SJoe Perches net_ratelimited_function(pr_debug, fmt, ##__VA_ARGS__) 280d92cff89SJason A. Donenfeld #else 281d92cff89SJason A. Donenfeld #define net_dbg_ratelimited(fmt, ...) \ 282d92cff89SJason A. Donenfeld do { \ 283d92cff89SJason A. Donenfeld if (0) \ 284d92cff89SJason A. Donenfeld no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__); \ 285d92cff89SJason A. Donenfeld } while (0) 286d92cff89SJason A. Donenfeld #endif 2873a3bfb61SJoe Perches 288a48e4292SHannes Frederic Sowa #define net_get_random_once(buf, nbytes) \ 28946234253SHannes Frederic Sowa get_random_once((buf), (nbytes)) 290da9ba564SJason A. Donenfeld #define net_get_random_once_wait(buf, nbytes) \ 291da9ba564SJason A. Donenfeld get_random_once_wait((buf), (nbytes)) 292a48e4292SHannes Frederic Sowa 2937965bd4dSJoe Perches int kernel_sendmsg(struct socket *sock, struct msghdr *msg, struct kvec *vec, 2947965bd4dSJoe Perches size_t num, size_t len); 295306b13ebSTom Herbert int kernel_sendmsg_locked(struct sock *sk, struct msghdr *msg, 296306b13ebSTom Herbert struct kvec *vec, size_t num, size_t len); 2977965bd4dSJoe Perches int kernel_recvmsg(struct socket *sock, struct msghdr *msg, struct kvec *vec, 2987965bd4dSJoe Perches size_t num, size_t len, int flags); 2991da177e4SLinus Torvalds 3007965bd4dSJoe Perches int kernel_bind(struct socket *sock, struct sockaddr *addr, int addrlen); 3017965bd4dSJoe Perches int kernel_listen(struct socket *sock, int backlog); 3027965bd4dSJoe Perches int kernel_accept(struct socket *sock, struct socket **newsock, int flags); 3037965bd4dSJoe Perches int kernel_connect(struct socket *sock, struct sockaddr *addr, int addrlen, 304ac5a488eSSridhar Samudrala int flags); 3059b2c45d4SDenys Vlasenko int kernel_getsockname(struct socket *sock, struct sockaddr *addr); 3069b2c45d4SDenys Vlasenko int kernel_getpeername(struct socket *sock, struct sockaddr *addr); 3077965bd4dSJoe Perches int kernel_getsockopt(struct socket *sock, int level, int optname, char *optval, 3087965bd4dSJoe Perches int *optlen); 3097965bd4dSJoe Perches int kernel_setsockopt(struct socket *sock, int level, int optname, char *optval, 3107965bd4dSJoe Perches unsigned int optlen); 3117965bd4dSJoe Perches int kernel_sendpage(struct socket *sock, struct page *page, int offset, 312ac5a488eSSridhar Samudrala size_t size, int flags); 313306b13ebSTom Herbert int kernel_sendpage_locked(struct sock *sk, struct page *page, int offset, 314306b13ebSTom Herbert size_t size, int flags); 3157965bd4dSJoe Perches int kernel_sock_shutdown(struct socket *sock, enum sock_shutdown_cmd how); 316ac5a488eSSridhar Samudrala 31757240d00SR. Parameswaran /* Routine returns the IP overhead imposed by a (caller-protected) socket. */ 318113c3075SR. Parameswaran u32 kernel_sock_ip_overhead(struct sock *sk); 319113c3075SR. Parameswaran 3201da177e4SLinus Torvalds #define MODULE_ALIAS_NETPROTO(proto) \ 3211da177e4SLinus Torvalds MODULE_ALIAS("net-pf-" __stringify(proto)) 3221da177e4SLinus Torvalds 3234fdb3bb7SHarald Welte #define MODULE_ALIAS_NET_PF_PROTO(pf, proto) \ 3244fdb3bb7SHarald Welte MODULE_ALIAS("net-pf-" __stringify(pf) "-proto-" __stringify(proto)) 3254fdb3bb7SHarald Welte 326305e1e96SJean Delvare #define MODULE_ALIAS_NET_PF_PROTO_TYPE(pf, proto, type) \ 327305e1e96SJean Delvare MODULE_ALIAS("net-pf-" __stringify(pf) "-proto-" __stringify(proto) \ 328305e1e96SJean Delvare "-type-" __stringify(type)) 329305e1e96SJean Delvare 3302033e9bfSNeil Horman #define MODULE_ALIAS_NET_PF_PROTO_NAME(pf, proto, name) \ 3312033e9bfSNeil Horman MODULE_ALIAS("net-pf-" __stringify(pf) "-proto-" __stringify(proto) \ 3322033e9bfSNeil Horman name) 3331da177e4SLinus Torvalds #endif /* _LINUX_NET_H */ 334