4d5bfd0429
The netlink component's libnl wrapper code returned the next hop in the route table to allow the calling code to differentiate between same and different networks, which is a fine comparison for IPv4, but is pretty expensive for IPv6 (coming soon to a netlink component near you). Rather than provide extra information (the address of the next hop), just provide whether there is a gateway or not, which is all the netlink component actually needs. Signed-off-by: Brian Barrett <bbarrett@amazon.com>
83 строки
2.7 KiB
C
83 строки
2.7 KiB
C
/*
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* Copyright (c) 2014, Cisco Systems, Inc. All rights reserved.
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* Copyright (c) 2017 Amazon.com, Inc. or its affiliates.
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* All Rights reserved.
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*
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* Portions of this software copied from libfabric
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* (https://github.com/ofiwg/libfabric)
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*
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* LICENSE_BEGIN
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*
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* BSD license:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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* LICENSE_END
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*/
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#ifndef LIBNL3_UTILS_H
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#define LIBNL3_UTILS_H
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#include <linux/netlink.h>
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#include <linux/rtnetlink.h>
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#include <netlink/netlink.h>
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#include <netlink/route/rtnl.h>
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#include <netlink/route/route.h>
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typedef struct nl_sock NL_HANDLE;
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#define NLMSG_SIZE(size) nlmsg_size(size)
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#define NL_GETERROR(err) nl_geterror(err)
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#define NL_HANDLE_ALLOC nl_socket_alloc
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#define NL_HANDLE_FREE nl_socket_free
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#define NL_DISABLE_SEQ_CHECK nl_socket_disable_seq_check
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#define INC_CB_MSGCNT(arg)
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/* err will be returned as -NLE_AGAIN */
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/* if the socket times out */
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#define NL_RECVMSGS(nlh, cb_arg, rc, err, out) \
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do { \
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err = nl_recvmsgs_default(nlh); \
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if (err < 0) { \
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opal_output(0, "Failed to receive netlink reply message, error %s\n", \
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NL_GETERROR(err)); \
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if (err == -NLE_AGAIN) \
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err = rc; \
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goto out; \
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} \
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} while (0)
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struct opal_reachable_netlink_rt_cb_arg {
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int oif;
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int found;
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int has_gateway;
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int replied;
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struct opal_reachable_netlink_sk *unlsk;
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};
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#endif /* LIBNL3_UTILS_H */
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