passt/netlink.h
David Gibson 8de9805224 netlink: Propagate errors for "set" operations
Currently if anything goes wrong while we're configuring the namespace
network with --config-net, we'll just ignore it and carry on.  This might
lead to a silently unconfigured or misconfigured namespace environment.

For simple "set" operations based on nl_do() we can now detect failures
reported via netlink.  Propagate those errors up to pasta_ns_conf() and
report them usefully.

Link: https://bugs.passt.top/show_bug.cgi?id=60
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
[sbrivio: Minor formatting changes in pasta_ns_conf()]
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
2023-08-04 01:30:22 +02:00

28 lines
1 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);
void 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, void *gw);
void nl_route_dup(int s_src, unsigned int ifi_src,
int s_dst, unsigned int ifi_dst, sa_family_t af);
void 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,
void *addr, int prefix_len);
void nl_addr_dup(int s_src, unsigned int ifi_src,
int s_dst, unsigned int ifi_dst, sa_family_t af);
void nl_link_get_mac(int s, unsigned int ifi, void *mac);
int nl_link_set_mac(int s, unsigned int ifi, void *mac);
int nl_link_up(int s, unsigned int ifi, int mtu);
#endif /* NETLINK_H */