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0fac350c54
Just like it was done for accept(2) in cfb1e92912, use same approach
for two simplier syscalls that return socket addresses. Although,
these two syscalls aren't performance critical, this change generalizes
some code between 3 syscalls trimming code size.
Following example of accept(2), provide VNET-aware and INVARIANT-checking
wrappers sopeeraddr() and sosockaddr() around protosw methods.
Reviewed by: tuexen
Differential Revision: https://reviews.freebsd.org/D42694
88 lines
2.6 KiB
C
88 lines
2.6 KiB
C
/*-
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* Copyright (c) 2010 Isilon Systems, Inc.
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* Copyright (c) 2010 iX Systems, Inc.
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* Copyright (c) 2010 Panasas, Inc.
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* Copyright (c) 2013, 2014 Mellanox Technologies, Ltd.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice unmodified, this list of conditions, and the following
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* disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _LINUXKPI_LINUX_NET_H_
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#define _LINUXKPI_LINUX_NET_H_
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#include <sys/types.h>
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#include <sys/malloc.h>
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#include <sys/proc.h>
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#include <sys/protosw.h>
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#include <sys/socket.h>
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#include <sys/socketvar.h>
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#include <sys/errno.h>
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static inline int
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sock_create_kern(int family, int type, int proto, struct socket **res)
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{
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return -socreate(family, res, type, proto, curthread->td_ucred,
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curthread);
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}
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static inline int
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sock_getname(struct socket *so, struct sockaddr *sa, int *sockaddr_len,
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int peer)
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{
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int error;
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/*
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* XXXGL: we can't use sopeeraddr()/sosockaddr() here since with
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* INVARIANTS they would check if supplied sockaddr has enough
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* length. Such notion doesn't even exist in Linux KPI.
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*/
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if (peer) {
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if ((so->so_state & (SS_ISCONNECTED|SS_ISCONFIRMING)) == 0)
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return (-ENOTCONN);
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error = so->so_proto->pr_peeraddr(so, sa);
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} else
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error = so->so_proto->pr_sockaddr(so, sa);
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if (error)
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return (-error);
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*sockaddr_len = sa->sa_len;
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return (0);
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}
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static inline void
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sock_release(struct socket *so)
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{
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soclose(so);
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}
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int linuxkpi_net_ratelimit(void);
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static inline int
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net_ratelimit(void)
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{
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return (linuxkpi_net_ratelimit());
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}
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#endif /* _LINUXKPI_LINUX_NET_H_ */
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