From ac5a488ef252ed673cb067843e411f8cc43f7ab9 Mon Sep 17 00:00:00 2001 From: Sridhar Samudrala Date: Mon, 7 Aug 2006 20:57:31 -0700 Subject: [NET]: Round out in-kernel sockets API This patch implements wrapper functions that provide a convenient way to access the sockets API for in-kernel users like sunrpc, cifs & ocfs2 etc and any future users. Signed-off-by: Sridhar Samudrala Acked-by: James Morris Signed-off-by: David S. Miller --- net/socket.c | 113 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 113 insertions(+) (limited to 'net/socket.c') diff --git a/net/socket.c b/net/socket.c index 6756e57e1ff..2eaebf934a1 100644 --- a/net/socket.c +++ b/net/socket.c @@ -2170,6 +2170,109 @@ static long compat_sock_ioctl(struct file *file, unsigned cmd, } #endif +int kernel_bind(struct socket *sock, struct sockaddr *addr, int addrlen) +{ + return sock->ops->bind(sock, addr, addrlen); +} + +int kernel_listen(struct socket *sock, int backlog) +{ + return sock->ops->listen(sock, backlog); +} + +int kernel_accept(struct socket *sock, struct socket **newsock, int flags) +{ + struct sock *sk = sock->sk; + int err; + + err = sock_create_lite(sk->sk_family, sk->sk_type, sk->sk_protocol, + newsock); + if (err < 0) + goto done; + + err = sock->ops->accept(sock, *newsock, flags); + if (err < 0) { + sock_release(*newsock); + goto done; + } + + (*newsock)->ops = sock->ops; + +done: + return err; +} + +int kernel_connect(struct socket *sock, struct sockaddr *addr, int addrlen, + int flags) +{ + return sock->ops->connect(sock, addr, addrlen, flags); +} + +int kernel_getsockname(struct socket *sock, struct sockaddr *addr, + int *addrlen) +{ + return sock->ops->getname(sock, addr, addrlen, 0); +} + +int kernel_getpeername(struct socket *sock, struct sockaddr *addr, + int *addrlen) +{ + return sock->ops->getname(sock, addr, addrlen, 1); +} + +int kernel_getsockopt(struct socket *sock, int level, int optname, + char *optval, int *optlen) +{ + mm_segment_t oldfs = get_fs(); + int err; + + set_fs(KERNEL_DS); + if (level == SOL_SOCKET) + err = sock_getsockopt(sock, level, optname, optval, optlen); + else + err = sock->ops->getsockopt(sock, level, optname, optval, + optlen); + set_fs(oldfs); + return err; +} + +int kernel_setsockopt(struct socket *sock, int level, int optname, + char *optval, int optlen) +{ + mm_segment_t oldfs = get_fs(); + int err; + + set_fs(KERNEL_DS); + if (level == SOL_SOCKET) + err = sock_setsockopt(sock, level, optname, optval, optlen); + else + err = sock->ops->setsockopt(sock, level, optname, optval, + optlen); + set_fs(oldfs); + return err; +} + +int kernel_sendpage(struct socket *sock, struct page *page, int offset, + size_t size, int flags) +{ + if (sock->ops->sendpage) + return sock->ops->sendpage(sock, page, offset, size, flags); + + return sock_no_sendpage(sock, page, offset, size, flags); +} + +int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg) +{ + mm_segment_t oldfs = get_fs(); + int err; + + set_fs(KERNEL_DS); + err = sock->ops->ioctl(sock, cmd, arg); + set_fs(oldfs); + + return err; +} + /* ABI emulation layers need these two */ EXPORT_SYMBOL(move_addr_to_kernel); EXPORT_SYMBOL(move_addr_to_user); @@ -2186,3 +2289,13 @@ EXPORT_SYMBOL(sock_wake_async); EXPORT_SYMBOL(sockfd_lookup); EXPORT_SYMBOL(kernel_sendmsg); EXPORT_SYMBOL(kernel_recvmsg); +EXPORT_SYMBOL(kernel_bind); +EXPORT_SYMBOL(kernel_listen); +EXPORT_SYMBOL(kernel_accept); +EXPORT_SYMBOL(kernel_connect); +EXPORT_SYMBOL(kernel_getsockname); +EXPORT_SYMBOL(kernel_getpeername); +EXPORT_SYMBOL(kernel_getsockopt); +EXPORT_SYMBOL(kernel_setsockopt); +EXPORT_SYMBOL(kernel_sendpage); +EXPORT_SYMBOL(kernel_sock_ioctl); -- cgit v1.2.3-18-g5258