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As soon as we bring up the interface, the Linux kernel will set up a link-local address for it, so we can fetch it and start using right away, if we need a link-local address to communicate to the container before we see any traffic coming from it. Signed-off-by: Stefano Brivio <sbrivio@redhat.com> Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
33 lines
1.2 KiB
C
33 lines
1.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later
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* Copyright (c) 2021 Red Hat GmbH
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* Author: Stefano Brivio <sbrivio@redhat.com>
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*/
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#ifndef NETLINK_H
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#define NETLINK_H
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extern int nl_sock;
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extern int nl_sock_ns;
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void nl_sock_init(const struct ctx *c, bool ns);
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unsigned int nl_get_ext_if(int s, sa_family_t af);
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int nl_route_get_def(int s, unsigned int ifi, sa_family_t af, void *gw);
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int nl_route_set_def(int s, unsigned int ifi, sa_family_t af, const void *gw);
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int nl_route_dup(int s_src, unsigned int ifi_src,
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int s_dst, unsigned int ifi_dst, sa_family_t af);
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int nl_addr_get(int s, unsigned int ifi, sa_family_t af,
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void *addr, int *prefix_len, void *addr_l);
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int nl_addr_set(int s, unsigned int ifi, sa_family_t af,
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const void *addr, int prefix_len);
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int nl_addr_get_ll(int s, unsigned int ifi, struct in6_addr *addr);
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int nl_addr_set_ll_nodad(int s, unsigned int ifi);
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int nl_addr_dup(int s_src, unsigned int ifi_src,
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int s_dst, unsigned int ifi_dst, sa_family_t af);
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int nl_link_get_mac(int s, unsigned int ifi, void *mac);
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int nl_link_set_mac(int s, unsigned int ifi, const void *mac);
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int nl_link_set_mtu(int s, unsigned int ifi, int mtu);
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int nl_link_set_flags(int s, unsigned int ifi,
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unsigned int set, unsigned int change);
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#endif /* NETLINK_H */
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