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passt/netlink.h
Stefano Brivio d6f0220731 netlink, pasta: Fetch link-local address from namespace interface once it's up
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>
2024-08-18 01:29:52 +02:00

33 lines
1.2 KiB
C

/* SPDX-License-Identifier: GPL-2.0-or-later
* Copyright (c) 2021 Red Hat GmbH
* Author: Stefano Brivio <sbrivio@redhat.com>
*/
#ifndef NETLINK_H
#define NETLINK_H
extern int nl_sock;
extern int nl_sock_ns;
void nl_sock_init(const struct ctx *c, bool ns);
unsigned int nl_get_ext_if(int s, sa_family_t af);
int nl_route_get_def(int s, unsigned int ifi, sa_family_t af, void *gw);
int nl_route_set_def(int s, unsigned int ifi, sa_family_t af, const void *gw);
int nl_route_dup(int s_src, unsigned int ifi_src,
int s_dst, unsigned int ifi_dst, sa_family_t af);
int nl_addr_get(int s, unsigned int ifi, sa_family_t af,
void *addr, int *prefix_len, void *addr_l);
int nl_addr_set(int s, unsigned int ifi, sa_family_t af,
const void *addr, int prefix_len);
int nl_addr_get_ll(int s, unsigned int ifi, struct in6_addr *addr);
int nl_addr_set_ll_nodad(int s, unsigned int ifi);
int nl_addr_dup(int s_src, unsigned int ifi_src,
int s_dst, unsigned int ifi_dst, sa_family_t af);
int nl_link_get_mac(int s, unsigned int ifi, void *mac);
int nl_link_set_mac(int s, unsigned int ifi, const void *mac);
int nl_link_set_mtu(int s, unsigned int ifi, int mtu);
int nl_link_set_flags(int s, unsigned int ifi,
unsigned int set, unsigned int change);
#endif /* NETLINK_H */