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 #include "resolve-util.h"
  26
  27 typedef struct Network Network;
  28
  29 #include "networkd-address.h"
  30 #include "networkd-fdb.h"
  31 #include "networkd-netdev.h"
  32 #include "networkd-route.h"
  33 #include "networkd-util.h"
  34 #include "networkd.h"
  35
  36 #define DHCP_ROUTE_METRIC 1024
  37 #define IPV4LL_ROUTE_METRIC 2048
  38
  39 typedef enum DCHPClientIdentifier {
  40         DHCP_CLIENT_ID_MAC,
  41         DHCP_CLIENT_ID_DUID,
  42         _DHCP_CLIENT_ID_MAX,
  43         _DHCP_CLIENT_ID_INVALID = -1,
  44 } DCHPClientIdentifier;
  45
  46 typedef enum IPv6PrivacyExtensions {
  47         /* The values map to the kernel's /proc/sys/net/ipv6/conf/xxx/use_tempaddr values */
  48         IPV6_PRIVACY_EXTENSIONS_NO,
  49         IPV6_PRIVACY_EXTENSIONS_PREFER_PUBLIC,
  50         IPV6_PRIVACY_EXTENSIONS_YES, /* aka prefer-temporary */
  51         _IPV6_PRIVACY_EXTENSIONS_MAX,
  52         _IPV6_PRIVACY_EXTENSIONS_INVALID = -1,
  53 } IPv6PrivacyExtensions;
  54
  55 struct Network {
  56         Manager *manager;
  57
  58         char *filename;
  59         char *name;
  60
  61         struct ether_addr *match_mac;
  62         char **match_path;
  63         char **match_driver;
  64         char **match_type;
  65         char **match_name;
  66
  67         Condition *match_host;
  68         Condition *match_virt;
  69         Condition *match_kernel;
  70         Condition *match_arch;
  71
  72         char *description;
  73
  74         NetDev *bridge;
  75         NetDev *bond;
  76         Hashmap *stacked_netdevs;
  77
  78         /* DHCP Client Support */
  79         AddressFamilyBoolean dhcp;
  80         DCHPClientIdentifier dhcp_client_identifier;
  81         char *dhcp_vendor_class_identifier;
  82         char *hostname;
  83         bool dhcp_dns;
  84         bool dhcp_ntp;
  85         bool dhcp_mtu;
  86         bool dhcp_hostname;
  87         bool dhcp_domains;
  88         bool dhcp_sendhost;
  89         bool dhcp_broadcast;
  90         bool dhcp_critical;
  91         bool dhcp_routes;
  92         bool dhcp_timezone;
  93         unsigned dhcp_route_metric;
  94
  95         /* DHCP Server Support */
  96         bool dhcp_server;
  97         bool dhcp_server_emit_dns;
  98         struct in_addr *dhcp_server_dns;
  99         unsigned n_dhcp_server_dns;
 100         bool dhcp_server_emit_ntp;
 101         struct in_addr *dhcp_server_ntp;
 102         unsigned n_dhcp_server_ntp;
 103         bool dhcp_server_emit_timezone;
 104         char *dhcp_server_timezone;
 105         usec_t dhcp_server_default_lease_time_usec, dhcp_server_max_lease_time_usec;
 106         uint32_t dhcp_server_pool_offset;
 107         uint32_t dhcp_server_pool_size;
 108
 109         /* IPV4LL Support */
 110         AddressFamilyBoolean link_local;
 111         bool ipv4ll_route;
 112
 113         /* Bridge Support */
 114         bool use_bpdu;
 115         bool hairpin;
 116         bool fast_leave;
 117         bool allow_port_to_be_root;
 118         bool unicast_flood;
 119         unsigned cost;
 120
 121         AddressFamilyBoolean ip_forward;
 122         bool ip_masquerade;
 123
 124         int ipv6_accept_ra;
 125         int ipv6_dad_transmits;
 126         int ipv6_hop_limit;
 127
 128         union in_addr_union ipv6_token;
 129         IPv6PrivacyExtensions ipv6_privacy_extensions;
 130
 131         struct ether_addr *mac;
 132         unsigned mtu;
 133
 134         bool lldp;
 135
 136         LIST_HEAD(Address, static_addresses);
 137         LIST_HEAD(Route, static_routes);
 138         LIST_HEAD(FdbEntry, static_fdb_entries);
 139
 140         Hashmap *addresses_by_section;
 141         Hashmap *routes_by_section;
 142         Hashmap *fdb_entries_by_section;
 143
 144         bool wildcard_domain;
 145         char **domains, **dns, **ntp, **bind_carrier;
 146
 147         ResolveSupport llmnr;
 148         ResolveSupport mdns;
 149         DnssecMode dnssec_mode;
 150         Set *dnssec_negative_trust_anchors;
 151
 152         LIST_FIELDS(Network, networks);
 153 };
 154
 155 void network_free(Network *network);
 156
 157 DEFINE_TRIVIAL_CLEANUP_FUNC(Network*, network_free);
 158 #define _cleanup_network_free_ _cleanup_(network_freep)
 159
 160 int network_load(Manager *manager);
 161
 162 int network_get_by_name(Manager *manager, const char *name, Network **ret);
 163 int network_get(Manager *manager, struct udev_device *device, const char *ifname, const struct ether_addr *mac, Network **ret);
 164 int network_apply(Manager *manager, Network *network, Link *link);
 165
 166 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);
 167 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);
 168 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);
 169 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);
 170 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);
 171 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);
 172 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);
 173 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);
 174 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);
 175 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);
 176 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);
 177 int config_parse_dnssec_negative_trust_anchors(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);
 178
 179 /* Legacy IPv4LL support */
 180 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);
 181
 182 const struct ConfigPerfItem* network_network_gperf_lookup(const char *key, unsigned length);
 183
 184 extern const sd_bus_vtable network_vtable[];
 185
 186 int network_node_enumerator(sd_bus *bus, const char *path, void *userdata, char ***nodes, sd_bus_error *error);
 187 int network_object_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error);
 188
 189 const char* ipv6_privacy_extensions_to_string(IPv6PrivacyExtensions i) _const_;
 190 IPv6PrivacyExtensions ipv6_privacy_extensions_from_string(const char *s) _pure_;