src/network/networkd-network.h

   1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
   2
   3 #pragma once
   4
   5 /***
   6   This file is part of systemd.
   7
   8   Copyright 2013 Tom Gundersen <teg@jklm.no>
   9
  10   systemd is free software; you can redistribute it and/or modify it
  11   under the terms of the GNU Lesser General Public License as published by
  12   the Free Software Foundation; either version 2.1 of the License, or
  13   (at your option) any later version.
  14
  15   systemd is distributed in the hope that it will be useful, but
  16   WITHOUT ANY WARRANTY; without even the implied warranty of
  17   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  18   Lesser General Public License for more details.
  19
  20   You should have received a copy of the GNU Lesser General Public License
  21   along with systemd; If not, see <http://www.gnu.org/licenses/>.
  22 ***/
  23
  24 #include "condition.h"
  25
  26 typedef struct Network Network;
  27
  28 #include "networkd-address.h"
  29 #include "networkd-fdb.h"
  30 #include "networkd-netdev.h"
  31 #include "networkd-route.h"
  32 #include "networkd-util.h"
  33 #include "networkd.h"
  34
  35 #define DHCP_ROUTE_METRIC 1024
  36 #define IPV4LL_ROUTE_METRIC 2048
  37
  38 typedef enum DCHPClientIdentifier {
  39         DHCP_CLIENT_ID_MAC,
  40         DHCP_CLIENT_ID_DUID,
  41         _DHCP_CLIENT_ID_MAX,
  42         _DHCP_CLIENT_ID_INVALID = -1,
  43 } DCHPClientIdentifier;
  44
  45 typedef enum IPv6PrivacyExtensions {
  46         /* The values map to the kernel's /proc/sys/net/ipv6/conf/xxx/use_tempaddr values */
  47         IPV6_PRIVACY_EXTENSIONS_NO,
  48         IPV6_PRIVACY_EXTENSIONS_PREFER_PUBLIC,
  49         IPV6_PRIVACY_EXTENSIONS_YES, /* aka prefer-temporary */
  50         _IPV6_PRIVACY_EXTENSIONS_MAX,
  51         _IPV6_PRIVACY_EXTENSIONS_INVALID = -1,
  52 } IPv6PrivacyExtensions;
  53
  54 struct Network {
  55         Manager *manager;
  56
  57         char *filename;
  58         char *name;
  59
  60         struct ether_addr *match_mac;
  61         char **match_path;
  62         char **match_driver;
  63         char **match_type;
  64         char **match_name;
  65
  66         Condition *match_host;
  67         Condition *match_virt;
  68         Condition *match_kernel;
  69         Condition *match_arch;
  70
  71         char *description;
  72
  73         NetDev *bridge;
  74         NetDev *bond;
  75         Hashmap *stacked_netdevs;
  76
  77         /* DHCP Client Support */
  78         AddressFamilyBoolean dhcp;
  79         DCHPClientIdentifier dhcp_client_identifier;
  80         char *dhcp_vendor_class_identifier;
  81         char *hostname;
  82         bool dhcp_dns;
  83         bool dhcp_ntp;
  84         bool dhcp_mtu;
  85         bool dhcp_hostname;
  86         bool dhcp_domains;
  87         bool dhcp_sendhost;
  88         bool dhcp_broadcast;
  89         bool dhcp_critical;
  90         bool dhcp_routes;
  91         bool dhcp_timezone;
  92         unsigned dhcp_route_metric;
  93
  94         /* DHCP Server Support */
  95         bool dhcp_server;
  96         bool dhcp_server_emit_dns;
  97         struct in_addr *dhcp_server_dns;
  98         unsigned n_dhcp_server_dns;
  99         bool dhcp_server_emit_ntp;
 100         struct in_addr *dhcp_server_ntp;
 101         unsigned n_dhcp_server_ntp;
 102         bool dhcp_server_emit_timezone;
 103         char *dhcp_server_timezone;
 104         usec_t dhcp_server_default_lease_time_usec, dhcp_server_max_lease_time_usec;
 105         uint32_t dhcp_server_pool_offset;
 106         uint32_t dhcp_server_pool_size;
 107
 108         /* IPV4LL Support */
 109         AddressFamilyBoolean link_local;
 110         bool ipv4ll_route;
 111
 112         /* Bridge Support */
 113         bool use_bpdu;
 114         bool hairpin;
 115         bool fast_leave;
 116         bool allow_port_to_be_root;
 117         bool unicast_flood;
 118         unsigned cost;
 119
 120         AddressFamilyBoolean ip_forward;
 121         bool ip_masquerade;
 122
 123         int ipv6_accept_ra;
 124         int ipv6_dad_transmits;
 125         int ipv6_hop_limit;
 126
 127         union in_addr_union ipv6_token;
 128         IPv6PrivacyExtensions ipv6_privacy_extensions;
 129
 130         struct ether_addr *mac;
 131         unsigned mtu;
 132
 133         bool lldp;
 134
 135         LIST_HEAD(Address, static_addresses);
 136         LIST_HEAD(Route, static_routes);
 137         LIST_HEAD(FdbEntry, static_fdb_entries);
 138
 139         Hashmap *addresses_by_section;
 140         Hashmap *routes_by_section;
 141         Hashmap *fdb_entries_by_section;
 142
 143         bool wildcard_domain;
 144         char **domains, **dns, **ntp, **bind_carrier;
 145
 146         ResolveSupport llmnr;
 147
 148         LIST_FIELDS(Network, networks);
 149 };
 150
 151 void network_free(Network *network);
 152
 153 DEFINE_TRIVIAL_CLEANUP_FUNC(Network*, network_free);
 154 #define _cleanup_network_free_ _cleanup_(network_freep)
 155
 156 int network_load(Manager *manager);
 157
 158 int network_get_by_name(Manager *manager, const char *name, Network **ret);
 159 int network_get(Manager *manager, struct udev_device *device, const char *ifname, const struct ether_addr *mac, Network **ret);
 160 int network_apply(Manager *manager, Network *network, Link *link);
 161
 162 int config_parse_netdev(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
 163 int config_parse_domains(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
 164 int config_parse_tunnel(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
 165 int config_parse_dhcp(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
 166 int config_parse_dhcp_client_identifier(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
 167 int config_parse_ipv6token(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
 168 int config_parse_ipv6_privacy_extensions(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
 169 int config_parse_hostname(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
 170 int config_parse_timezone(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
 171 int config_parse_dhcp_server_dns(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
 172 int config_parse_dhcp_server_ntp(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
 173
 174 /* Legacy IPv4LL support */
 175 int config_parse_ipv4ll(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
 176
 177 const struct ConfigPerfItem* network_network_gperf_lookup(const char *key, unsigned length);
 178
 179 extern const sd_bus_vtable network_vtable[];
 180
 181 int network_node_enumerator(sd_bus *bus, const char *path, void *userdata, char ***nodes, sd_bus_error *error);
 182 int network_object_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error);
 183
 184 const char* ipv6_privacy_extensions_to_string(IPv6PrivacyExtensions i) _const_;
 185 IPv6PrivacyExtensions ipv6_privacy_extensions_from_string(const char *s) _pure_;