src/network/networkd-network.h

   1 #pragma once
   2
   3 /***
   4   This file is part of systemd.
   5
   6   Copyright 2013 Tom Gundersen <teg@jklm.no>
   7
   8   systemd is free software; you can redistribute it and/or modify it
   9   under the terms of the GNU Lesser General Public License as published by
  10   the Free Software Foundation; either version 2.1 of the License, or
  11   (at your option) any later version.
  12
  13   systemd is distributed in the hope that it will be useful, but
  14   WITHOUT ANY WARRANTY; without even the implied warranty of
  15   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  16   Lesser General Public License for more details.
  17
  18   You should have received a copy of the GNU Lesser General Public License
  19   along with systemd; If not, see <http://www.gnu.org/licenses/>.
  20 ***/
  21
  22 #include "condition.h"
  23 #include "resolve-util.h"
  24
  25 typedef struct Network Network;
  26
  27 #include "networkd-address.h"
  28 #include "networkd-fdb.h"
  29 #include "networkd-netdev.h"
  30 #include "networkd-route.h"
  31 #include "networkd-util.h"
  32 #include "networkd.h"
  33
  34 #define DHCP_ROUTE_METRIC 1024
  35 #define IPV4LL_ROUTE_METRIC 2048
  36
  37 typedef enum DCHPClientIdentifier {
  38         DHCP_CLIENT_ID_MAC,
  39         DHCP_CLIENT_ID_DUID,
  40         _DHCP_CLIENT_ID_MAX,
  41         _DHCP_CLIENT_ID_INVALID = -1,
  42 } DCHPClientIdentifier;
  43
  44 typedef enum IPv6PrivacyExtensions {
  45         /* The values map to the kernel's /proc/sys/net/ipv6/conf/xxx/use_tempaddr values */
  46         IPV6_PRIVACY_EXTENSIONS_NO,
  47         IPV6_PRIVACY_EXTENSIONS_PREFER_PUBLIC,
  48         IPV6_PRIVACY_EXTENSIONS_YES, /* aka prefer-temporary */
  49         _IPV6_PRIVACY_EXTENSIONS_MAX,
  50         _IPV6_PRIVACY_EXTENSIONS_INVALID = -1,
  51 } IPv6PrivacyExtensions;
  52
  53 typedef enum DHCPUseDomains {
  54         DHCP_USE_DOMAINS_NO,
  55         DHCP_USE_DOMAINS_YES,
  56         DHCP_USE_DOMAINS_ROUTE,
  57         _DHCP_USE_DOMAINS_MAX,
  58         _DHCP_USE_DOMAINS_INVALID = -1,
  59 } DHCPUseDomains;
  60
  61 typedef enum LLDPMode {
  62         LLDP_MODE_NO = 0,
  63         LLDP_MODE_YES = 1,
  64         LLDP_MODE_ROUTERS_ONLY = 2,
  65         _LLDP_MODE_MAX,
  66         _LLDP_MODE_INVALID = -1,
  67 } LLDPMode;
  68
  69 struct Network {
  70         Manager *manager;
  71
  72         char *filename;
  73         char *name;
  74
  75         struct ether_addr *match_mac;
  76         char **match_path;
  77         char **match_driver;
  78         char **match_type;
  79         char **match_name;
  80
  81         Condition *match_host;
  82         Condition *match_virt;
  83         Condition *match_kernel;
  84         Condition *match_arch;
  85
  86         char *description;
  87
  88         NetDev *bridge;
  89         NetDev *bond;
  90         Hashmap *stacked_netdevs;
  91
  92         /* DHCP Client Support */
  93         AddressFamilyBoolean dhcp;
  94         DCHPClientIdentifier dhcp_client_identifier;
  95         char *dhcp_vendor_class_identifier;
  96         char *dhcp_hostname;
  97         bool dhcp_use_dns;
  98         bool dhcp_use_ntp;
  99         bool dhcp_use_mtu;
 100         bool dhcp_use_hostname;
 101         DHCPUseDomains dhcp_use_domains;
 102         bool dhcp_send_hostname;
 103         bool dhcp_broadcast;
 104         bool dhcp_critical;
 105         bool dhcp_use_routes;
 106         bool dhcp_use_timezone;
 107         unsigned dhcp_route_metric;
 108
 109         /* DHCP Server Support */
 110         bool dhcp_server;
 111         bool dhcp_server_emit_dns;
 112         struct in_addr *dhcp_server_dns;
 113         unsigned n_dhcp_server_dns;
 114         bool dhcp_server_emit_ntp;
 115         struct in_addr *dhcp_server_ntp;
 116         unsigned n_dhcp_server_ntp;
 117         bool dhcp_server_emit_timezone;
 118         char *dhcp_server_timezone;
 119         usec_t dhcp_server_default_lease_time_usec, dhcp_server_max_lease_time_usec;
 120         uint32_t dhcp_server_pool_offset;
 121         uint32_t dhcp_server_pool_size;
 122
 123         /* IPV4LL Support */
 124         AddressFamilyBoolean link_local;
 125         bool ipv4ll_route;
 126
 127         /* Bridge Support */
 128         bool use_bpdu;
 129         bool hairpin;
 130         bool fast_leave;
 131         bool allow_port_to_be_root;
 132         bool unicast_flood;
 133         unsigned cost;
 134
 135         AddressFamilyBoolean ip_forward;
 136         bool ip_masquerade;
 137
 138         int ipv6_accept_ra;
 139         int ipv6_dad_transmits;
 140         int ipv6_hop_limit;
 141
 142         union in_addr_union ipv6_token;
 143         IPv6PrivacyExtensions ipv6_privacy_extensions;
 144
 145         struct ether_addr *mac;
 146         unsigned mtu;
 147
 148         LLDPMode lldp_mode; /* LLDP reception */
 149         bool lldp_emit;     /* LLDP transmission */
 150
 151         LIST_HEAD(Address, static_addresses);
 152         LIST_HEAD(Route, static_routes);
 153         LIST_HEAD(FdbEntry, static_fdb_entries);
 154
 155         Hashmap *addresses_by_section;
 156         Hashmap *routes_by_section;
 157         Hashmap *fdb_entries_by_section;
 158
 159         char **search_domains, **route_domains, **dns, **ntp, **bind_carrier;
 160
 161         ResolveSupport llmnr;
 162         ResolveSupport mdns;
 163         DnssecMode dnssec_mode;
 164         Set *dnssec_negative_trust_anchors;
 165
 166         LIST_FIELDS(Network, networks);
 167 };
 168
 169 void network_free(Network *network);
 170
 171 DEFINE_TRIVIAL_CLEANUP_FUNC(Network*, network_free);
 172 #define _cleanup_network_free_ _cleanup_(network_freep)
 173
 174 int network_load(Manager *manager);
 175
 176 int network_get_by_name(Manager *manager, const char *name, Network **ret);
 177 int network_get(Manager *manager, struct udev_device *device, const char *ifname, const struct ether_addr *mac, Network **ret);
 178 int network_apply(Manager *manager, Network *network, Link *link);
 179
 180 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);
 181 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);
 182 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);
 183 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);
 184 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);
 185 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);
 186 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);
 187 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);
 188 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);
 189 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);
 190 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);
 191 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);
 192 int config_parse_dhcp_use_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);
 193 int config_parse_lldp_mode(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);
 194
 195 /* Legacy IPv4LL support */
 196 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);
 197
 198 const struct ConfigPerfItem* network_network_gperf_lookup(const char *key, unsigned length);
 199
 200 extern const sd_bus_vtable network_vtable[];
 201
 202 int network_node_enumerator(sd_bus *bus, const char *path, void *userdata, char ***nodes, sd_bus_error *error);
 203 int network_object_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error);
 204
 205 const char* ipv6_privacy_extensions_to_string(IPv6PrivacyExtensions i) _const_;
 206 IPv6PrivacyExtensions ipv6_privacy_extensions_from_string(const char *s) _pure_;
 207
 208 const char* dhcp_use_domains_to_string(DHCPUseDomains p) _const_;
 209 DHCPUseDomains dhcp_use_domains_from_string(const char *s) _pure_;
 210
 211 const char* lldp_mode_to_string(LLDPMode m) _const_;
 212 LLDPMode lldp_mode_from_string(const char *s) _pure_;