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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Copyright (C) 2004 - 2005 Colin Walters <walters@redhat.com>
* Copyright (C) 2004 - 2013 Red Hat, Inc.
* Copyright (C) 2005 - 2008 Novell, Inc.
*/
#ifndef __NETWORKMANAGER_DNS_MANAGER_H__
#define __NETWORKMANAGER_DNS_MANAGER_H__
#include "nm-ip4-config.h"
#include "nm-ip6-config.h"
#include "nm-setting-connection.h"
typedef enum {
NM_DNS_IP_CONFIG_TYPE_REMOVED = -1,
NM_DNS_IP_CONFIG_TYPE_DEFAULT = 0,
NM_DNS_IP_CONFIG_TYPE_BEST_DEVICE,
NM_DNS_IP_CONFIG_TYPE_VPN,
} NMDnsIPConfigType;
enum {
NM_DNS_PRIORITY_DEFAULT_NORMAL = 100,
NM_DNS_PRIORITY_DEFAULT_VPN = 50,
};
/*****************************************************************************/
struct _NMDnsConfigData;
struct _NMDnsManager;
typedef struct {
struct _NMDnsConfigData *data;
NMIPConfig * ip_config;
CList data_lst;
CList ip_config_lst;
NMDnsIPConfigType ip_config_type;
struct {
const char **search;
char ** reverse;
/* Whether "search" explicitly contains a default route "~"
* or "". It is redundant information, but for faster lookup. */
bool has_default_route_explicit : 1;
/* Whether an explicit "~" search domain should be added.
* For systemd-resolved, this configured an explicit wildcard
* search domain, and should be used for profiles with negative
* DNS priority.
*
* If "has_default_route_explicit", this is always TRUE and implied.
*
* With systemd-resolved, if TRUE we will set a "." search domain.
*/
bool has_default_route_exclusive : 1;
/* Whether the device should be used for any domains "~".
*
* If "has_default_route_exclusive", this is always TRUE and implied.
*
* With systemd-resolved, this is the value for SetLinkDefaultRoute(). */
bool has_default_route : 1;
} domains;
} NMDnsConfigIPData;
typedef struct _NMDnsConfigData {
int ifindex;
struct _NMDnsManager *self;
CList data_lst_head;
CList configs_lst;
} NMDnsConfigData;
/*****************************************************************************/
#define NM_TYPE_DNS_MANAGER (nm_dns_manager_get_type())
#define NM_DNS_MANAGER(o) (G_TYPE_CHECK_INSTANCE_CAST((o), NM_TYPE_DNS_MANAGER, NMDnsManager))
#define NM_DNS_MANAGER_CLASS(k) \
(G_TYPE_CHECK_CLASS_CAST((k), NM_TYPE_DNS_MANAGER, NMDnsManagerClass))
#define NM_IS_DNS_MANAGER(o) (G_TYPE_CHECK_INSTANCE_TYPE((o), NM_TYPE_DNS_MANAGER))
#define NM_IS_DNS_MANAGER_CLASS(k) (G_TYPE_CHECK_CLASS_TYPE((k), NM_TYPE_DNS_MANAGER))
#define NM_DNS_MANAGER_GET_CLASS(o) \
(G_TYPE_INSTANCE_GET_CLASS((o), NM_TYPE_DNS_MANAGER, NMDnsManagerClass))
/* properties */
#define NM_DNS_MANAGER_MODE "mode"
#define NM_DNS_MANAGER_RC_MANAGER "rc-manager"
#define NM_DNS_MANAGER_CONFIGURATION "configuration"
/* internal signals */
#define NM_DNS_MANAGER_CONFIG_CHANGED "config-changed"
typedef struct _NMDnsManager NMDnsManager;
typedef struct _NMDnsManagerClass NMDnsManagerClass;
GType nm_dns_manager_get_type(void);
NMDnsManager *nm_dns_manager_get(void);
/* Allow changes to be batched together */
void nm_dns_manager_begin_updates(NMDnsManager *self, const char *func);
void nm_dns_manager_end_updates(NMDnsManager *self, const char *func);
gboolean nm_dns_manager_set_ip_config(NMDnsManager * self,
NMIPConfig * ip_config,
NMDnsIPConfigType ip_config_type);
void nm_dns_manager_set_initial_hostname(NMDnsManager *self, const char *hostname);
void nm_dns_manager_set_hostname(NMDnsManager *self, const char *hostname, gboolean skip_update);
/**
* NMDnsManagerResolvConfManager
* @NM_DNS_MANAGER_RESOLV_CONF_MAN_UNKNOWN: unspecified rc-manager.
* @NM_DNS_MANAGER_RESOLV_CONF_MAN_UNMANAGED: do not touch /etc/resolv.conf
* (but still write the internal copy -- unless it is symlinked by
* /etc/resolv.conf)
* @NM_DNS_MANAGER_RESOLV_CONF_MAN_AUTO: if /etc/resolv.conf is marked
* as an immutable file, use "unmanaged" and don't touch /etc/resolv.conf.
* Otherwise, if "systemd-resolved" is enabled (or detected), configure systemd-resolved via D-Bus
* and don't touch /etc/resolv.conf.
* Otherwise, if "resolvconf" application is found, use it.
* As last resort, fallback to "symlink" which writes to /etc/resolv.conf
* if (and only if) the file is missing or not a symlink.
* @NM_DNS_MANAGER_RESOLV_CONF_MAN_IMMUTABLE: similar to "unmanaged",
* but indicates that resolv.conf cannot be modified.
* @NM_DNS_MANAGER_RESOLV_CONF_MAN_SYMLINK: NM writes /etc/resolv.conf
* if the file is missing or not a symlink. An existing symlink is
* left untouched.
* @NM_DNS_MANAGER_RESOLV_CONF_MAN_FILE: Write to /etc/resolv.conf directly.
* If it is a file, write it as file, otherwise follow symlinks.
* @NM_DNS_MANAGER_RESOLV_CONF_MAN_RESOLVCONF: NM is managing resolv.conf
through resolvconf
* @NM_DNS_MANAGER_RESOLV_CONF_MAN_NETCONFIG: NM is managing resolv.conf
through netconfig
*
* NMDnsManager's management of resolv.conf
*/
typedef enum {
NM_DNS_MANAGER_RESOLV_CONF_MAN_UNKNOWN,
NM_DNS_MANAGER_RESOLV_CONF_MAN_AUTO,
NM_DNS_MANAGER_RESOLV_CONF_MAN_UNMANAGED,
NM_DNS_MANAGER_RESOLV_CONF_MAN_IMMUTABLE,
NM_DNS_MANAGER_RESOLV_CONF_MAN_SYMLINK,
NM_DNS_MANAGER_RESOLV_CONF_MAN_FILE,
NM_DNS_MANAGER_RESOLV_CONF_MAN_RESOLVCONF,
NM_DNS_MANAGER_RESOLV_CONF_MAN_NETCONFIG,
} NMDnsManagerResolvConfManager;
void nm_dns_manager_stop(NMDnsManager *self);
gboolean nm_dns_manager_has_systemd_resolved(NMDnsManager *self);
/*****************************************************************************/
char *nmtst_dns_create_resolv_conf(const char *const *searches,
const char *const *nameservers,
const char *const *options);
#endif /* __NETWORKMANAGER_DNS_MANAGER_H__ */
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