aboutsummaryrefslogtreecommitdiffstats
path: root/include/linux/net.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/linux/net.h')
-rw-r--r--include/linux/net.h117
1 files changed, 71 insertions, 46 deletions
diff --git a/include/linux/net.h b/include/linux/net.h
index 4f27575ce1d6..4bcee94cef93 100644
--- a/include/linux/net.h
+++ b/include/linux/net.h
@@ -24,6 +24,7 @@
24#include <linux/fcntl.h> /* For O_CLOEXEC and O_NONBLOCK */ 24#include <linux/fcntl.h> /* For O_CLOEXEC and O_NONBLOCK */
25#include <linux/kmemcheck.h> 25#include <linux/kmemcheck.h>
26#include <linux/rcupdate.h> 26#include <linux/rcupdate.h>
27#include <linux/jump_label.h>
27#include <uapi/linux/net.h> 28#include <uapi/linux/net.h>
28 29
29struct poll_table_struct; 30struct poll_table_struct;
@@ -163,6 +164,14 @@ struct proto_ops {
163#endif 164#endif
164 int (*sendmsg) (struct kiocb *iocb, struct socket *sock, 165 int (*sendmsg) (struct kiocb *iocb, struct socket *sock,
165 struct msghdr *m, size_t total_len); 166 struct msghdr *m, size_t total_len);
167 /* Notes for implementing recvmsg:
168 * ===============================
169 * msg->msg_namelen should get updated by the recvmsg handlers
170 * iff msg_name != NULL. It is by default 0 to prevent
171 * returning uninitialized memory to user space. The recvfrom
172 * handlers can assume that msg.msg_name is either NULL or has
173 * a minimum size of sizeof(struct sockaddr_storage).
174 */
166 int (*recvmsg) (struct kiocb *iocb, struct socket *sock, 175 int (*recvmsg) (struct kiocb *iocb, struct socket *sock,
167 struct msghdr *m, size_t total_len, 176 struct msghdr *m, size_t total_len,
168 int flags); 177 int flags);
@@ -195,27 +204,23 @@ enum {
195 SOCK_WAKE_URG, 204 SOCK_WAKE_URG,
196}; 205};
197 206
198extern int sock_wake_async(struct socket *sk, int how, int band); 207int sock_wake_async(struct socket *sk, int how, int band);
199extern int sock_register(const struct net_proto_family *fam); 208int sock_register(const struct net_proto_family *fam);
200extern void sock_unregister(int family); 209void sock_unregister(int family);
201extern int __sock_create(struct net *net, int family, int type, int proto, 210int __sock_create(struct net *net, int family, int type, int proto,
202 struct socket **res, int kern); 211 struct socket **res, int kern);
203extern int sock_create(int family, int type, int proto, 212int sock_create(int family, int type, int proto, struct socket **res);
204 struct socket **res); 213int sock_create_kern(int family, int type, int proto, struct socket **res);
205extern int sock_create_kern(int family, int type, int proto, 214int sock_create_lite(int family, int type, int proto, struct socket **res);
206 struct socket **res); 215void sock_release(struct socket *sock);
207extern int sock_create_lite(int family, int type, int proto, 216int sock_sendmsg(struct socket *sock, struct msghdr *msg, size_t len);
208 struct socket **res); 217int sock_recvmsg(struct socket *sock, struct msghdr *msg, size_t size,
209extern void sock_release(struct socket *sock); 218 int flags);
210extern int sock_sendmsg(struct socket *sock, struct msghdr *msg, 219struct file *sock_alloc_file(struct socket *sock, int flags, const char *dname);
211 size_t len); 220struct socket *sockfd_lookup(int fd, int *err);
212extern int sock_recvmsg(struct socket *sock, struct msghdr *msg, 221struct socket *sock_from_file(struct file *file, int *err);
213 size_t size, int flags);
214extern struct file *sock_alloc_file(struct socket *sock, int flags, const char *dname);
215extern struct socket *sockfd_lookup(int fd, int *err);
216extern struct socket *sock_from_file(struct file *file, int *err);
217#define sockfd_put(sock) fput(sock->file) 222#define sockfd_put(sock) fput(sock->file)
218extern int net_ratelimit(void); 223int net_ratelimit(void);
219 224
220#define net_ratelimited_function(function, ...) \ 225#define net_ratelimited_function(function, ...) \
221do { \ 226do { \
@@ -243,32 +248,52 @@ do { \
243#define net_random() prandom_u32() 248#define net_random() prandom_u32()
244#define net_srandom(seed) prandom_seed((__force u32)(seed)) 249#define net_srandom(seed) prandom_seed((__force u32)(seed))
245 250
246extern int kernel_sendmsg(struct socket *sock, struct msghdr *msg, 251bool __net_get_random_once(void *buf, int nbytes, bool *done,
247 struct kvec *vec, size_t num, size_t len); 252 struct static_key *done_key);
248extern int kernel_recvmsg(struct socket *sock, struct msghdr *msg, 253
249 struct kvec *vec, size_t num, 254#ifdef HAVE_JUMP_LABEL
250 size_t len, int flags); 255#define ___NET_RANDOM_STATIC_KEY_INIT ((struct static_key) \
251 256 { .enabled = ATOMIC_INIT(0), .entries = (void *)1 })
252extern int kernel_bind(struct socket *sock, struct sockaddr *addr, 257#else /* !HAVE_JUMP_LABEL */
253 int addrlen); 258#define ___NET_RANDOM_STATIC_KEY_INIT STATIC_KEY_INIT_FALSE
254extern int kernel_listen(struct socket *sock, int backlog); 259#endif /* HAVE_JUMP_LABEL */
255extern int kernel_accept(struct socket *sock, struct socket **newsock, 260
256 int flags); 261#define net_get_random_once(buf, nbytes) \
257extern int kernel_connect(struct socket *sock, struct sockaddr *addr, 262 ({ \
258 int addrlen, int flags); 263 bool ___ret = false; \
259extern int kernel_getsockname(struct socket *sock, struct sockaddr *addr, 264 static bool ___done = false; \
260 int *addrlen); 265 static struct static_key ___done_key = \
261extern int kernel_getpeername(struct socket *sock, struct sockaddr *addr, 266 ___NET_RANDOM_STATIC_KEY_INIT; \
262 int *addrlen); 267 if (!static_key_true(&___done_key)) \
263extern int kernel_getsockopt(struct socket *sock, int level, int optname, 268 ___ret = __net_get_random_once(buf, \
264 char *optval, int *optlen); 269 nbytes, \
265extern int kernel_setsockopt(struct socket *sock, int level, int optname, 270 &___done, \
266 char *optval, unsigned int optlen); 271 &___done_key); \
267extern int kernel_sendpage(struct socket *sock, struct page *page, int offset, 272 ___ret; \
268 size_t size, int flags); 273 })
269extern int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg); 274
270extern int kernel_sock_shutdown(struct socket *sock, 275int kernel_sendmsg(struct socket *sock, struct msghdr *msg, struct kvec *vec,
271 enum sock_shutdown_cmd how); 276 size_t num, size_t len);
277int kernel_recvmsg(struct socket *sock, struct msghdr *msg, struct kvec *vec,
278 size_t num, size_t len, int flags);
279
280int kernel_bind(struct socket *sock, struct sockaddr *addr, int addrlen);
281int kernel_listen(struct socket *sock, int backlog);
282int kernel_accept(struct socket *sock, struct socket **newsock, int flags);
283int kernel_connect(struct socket *sock, struct sockaddr *addr, int addrlen,
284 int flags);
285int kernel_getsockname(struct socket *sock, struct sockaddr *addr,
286 int *addrlen);
287int kernel_getpeername(struct socket *sock, struct sockaddr *addr,
288 int *addrlen);
289int kernel_getsockopt(struct socket *sock, int level, int optname, char *optval,
290 int *optlen);
291int kernel_setsockopt(struct socket *sock, int level, int optname, char *optval,
292 unsigned int optlen);
293int kernel_sendpage(struct socket *sock, struct page *page, int offset,
294 size_t size, int flags);
295int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg);
296int kernel_sock_shutdown(struct socket *sock, enum sock_shutdown_cmd how);
272 297
273#define MODULE_ALIAS_NETPROTO(proto) \ 298#define MODULE_ALIAS_NETPROTO(proto) \
274 MODULE_ALIAS("net-pf-" __stringify(proto)) 299 MODULE_ALIAS("net-pf-" __stringify(proto))
generated by cgit v1.2.2 (git 2.25.0) at 2026-01-23 10:27:12 -0500