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 "sd-bus.h"
  23 #include "udev.h"
  24
  25 #include "condition.h"
  26 #include "dhcp-identifier.h"
  27 #include "hashmap.h"
  28 #include "resolve-util.h"
  29
  30 #include "networkd-address.h"
  31 #include "networkd-fdb.h"
  32 #include "networkd-lldp-tx.h"
  33 #include "networkd-netdev.h"
  34 #include "networkd-route.h"
  35 #include "networkd-util.h"
  36
  37 #define DHCP_ROUTE_METRIC 1024
  38 #define IPV4LL_ROUTE_METRIC 2048
  39
  40 typedef enum DCHPClientIdentifier {
  41         DHCP_CLIENT_ID_MAC,
  42         DHCP_CLIENT_ID_DUID,
  43         _DHCP_CLIENT_ID_MAX,
  44         _DHCP_CLIENT_ID_INVALID = -1,
  45 } DCHPClientIdentifier;
  46
  47 typedef enum IPv6PrivacyExtensions {
  48         /* The values map to the kernel's /proc/sys/net/ipv6/conf/xxx/use_tempaddr values */
  49         IPV6_PRIVACY_EXTENSIONS_NO,
  50         IPV6_PRIVACY_EXTENSIONS_PREFER_PUBLIC,
  51         IPV6_PRIVACY_EXTENSIONS_YES, /* aka prefer-temporary */
  52         _IPV6_PRIVACY_EXTENSIONS_MAX,
  53         _IPV6_PRIVACY_EXTENSIONS_INVALID = -1,
  54 } IPv6PrivacyExtensions;
  55
  56 typedef enum DHCPUseDomains {
  57         DHCP_USE_DOMAINS_NO,
  58         DHCP_USE_DOMAINS_YES,
  59         DHCP_USE_DOMAINS_ROUTE,
  60         _DHCP_USE_DOMAINS_MAX,
  61         _DHCP_USE_DOMAINS_INVALID = -1,
  62 } DHCPUseDomains;
  63
  64 typedef enum LLDPMode {
  65         LLDP_MODE_NO = 0,
  66         LLDP_MODE_YES = 1,
  67         LLDP_MODE_ROUTERS_ONLY = 2,
  68         _LLDP_MODE_MAX,
  69         _LLDP_MODE_INVALID = -1,
  70 } LLDPMode;
  71
  72 typedef struct DUID {
  73         /* Value of Type in [DHCP] section */
  74         DUIDType type;
  75
  76         uint8_t raw_data_len;
  77         uint8_t raw_data[MAX_DUID_LEN];
  78 } DUID;
  79
  80 typedef struct Manager Manager;
  81
  82 struct Network {
  83         Manager *manager;
  84
  85         char *filename;
  86         char *name;
  87
  88         struct ether_addr *match_mac;
  89         char **match_path;
  90         char **match_driver;
  91         char **match_type;
  92         char **match_name;
  93
  94         Condition *match_host;
  95         Condition *match_virt;
  96         Condition *match_kernel;
  97         Condition *match_arch;
  98
  99         char *description;
 100
 101         NetDev *bridge;
 102         NetDev *bond;
 103         Hashmap *stacked_netdevs;
 104
 105         /* DHCP Client Support */
 106         AddressFamilyBoolean dhcp;
 107         DCHPClientIdentifier dhcp_client_identifier;
 108         char *dhcp_vendor_class_identifier;
 109         char *dhcp_hostname;
 110         bool dhcp_use_dns;
 111         bool dhcp_use_ntp;
 112         bool dhcp_use_mtu;
 113         bool dhcp_use_hostname;
 114         DHCPUseDomains dhcp_use_domains;
 115         bool dhcp_send_hostname;
 116         bool dhcp_broadcast;
 117         bool dhcp_critical;
 118         bool dhcp_use_routes;
 119         bool dhcp_use_timezone;
 120         unsigned dhcp_route_metric;
 121
 122         /* DHCP Server Support */
 123         bool dhcp_server;
 124         bool dhcp_server_emit_dns;
 125         struct in_addr *dhcp_server_dns;
 126         unsigned n_dhcp_server_dns;
 127         bool dhcp_server_emit_ntp;
 128         struct in_addr *dhcp_server_ntp;
 129         unsigned n_dhcp_server_ntp;
 130         bool dhcp_server_emit_timezone;
 131         char *dhcp_server_timezone;
 132         usec_t dhcp_server_default_lease_time_usec, dhcp_server_max_lease_time_usec;
 133         uint32_t dhcp_server_pool_offset;
 134         uint32_t dhcp_server_pool_size;
 135
 136         /* IPV4LL Support */
 137         AddressFamilyBoolean link_local;
 138         bool ipv4ll_route;
 139
 140         /* Bridge Support */
 141         bool use_bpdu;
 142         bool hairpin;
 143         bool fast_leave;
 144         bool allow_port_to_be_root;
 145         bool unicast_flood;
 146         unsigned cost;
 147
 148         AddressFamilyBoolean ip_forward;
 149         bool ip_masquerade;
 150
 151         int ipv6_accept_ra;
 152         int ipv6_dad_transmits;
 153         int ipv6_hop_limit;
 154         int proxy_arp;
 155
 156         union in_addr_union ipv6_token;
 157         IPv6PrivacyExtensions ipv6_privacy_extensions;
 158
 159         struct ether_addr *mac;
 160         unsigned mtu;
 161         uint32_t iaid;
 162         DUID duid;
 163
 164         LLDPMode lldp_mode; /* LLDP reception */
 165         LLDPEmit lldp_emit; /* LLDP transmission */
 166
 167         LIST_HEAD(Address, static_addresses);
 168         LIST_HEAD(Route, static_routes);
 169         LIST_HEAD(FdbEntry, static_fdb_entries);
 170
 171         Hashmap *addresses_by_section;
 172         Hashmap *routes_by_section;
 173         Hashmap *fdb_entries_by_section;
 174
 175         char **search_domains, **route_domains, **dns, **ntp, **bind_carrier;
 176
 177         ResolveSupport llmnr;
 178         ResolveSupport mdns;
 179         DnssecMode dnssec_mode;
 180         Set *dnssec_negative_trust_anchors;
 181
 182         LIST_FIELDS(Network, networks);
 183 };
 184
 185 void network_free(Network *network);
 186
 187 DEFINE_TRIVIAL_CLEANUP_FUNC(Network*, network_free);
 188 #define _cleanup_network_free_ _cleanup_(network_freep)
 189
 190 int network_load(Manager *manager);
 191
 192 int network_get_by_name(Manager *manager, const char *name, Network **ret);
 193 int network_get(Manager *manager, struct udev_device *device, const char *ifname, const struct ether_addr *mac, Network **ret);
 194 int network_apply(Manager *manager, Network *network, Link *link);
 195
 196 bool network_has_static_ipv6_addresses(Network *network);
 197
 198 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);
 199 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);
 200 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);
 201 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);
 202 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);
 203 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);
 204 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);
 205 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);
 206 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);
 207 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);
 208 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);
 209 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);
 210 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);
 211 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);
 212
 213 /* Legacy IPv4LL support */
 214 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);
 215
 216 const struct ConfigPerfItem* network_network_gperf_lookup(const char *key, unsigned length);
 217
 218 extern const sd_bus_vtable network_vtable[];
 219
 220 int network_node_enumerator(sd_bus *bus, const char *path, void *userdata, char ***nodes, sd_bus_error *error);
 221 int network_object_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error);
 222
 223 const char* ipv6_privacy_extensions_to_string(IPv6PrivacyExtensions i) _const_;
 224 IPv6PrivacyExtensions ipv6_privacy_extensions_from_string(const char *s) _pure_;
 225
 226 const char* dhcp_use_domains_to_string(DHCPUseDomains p) _const_;
 227 DHCPUseDomains dhcp_use_domains_from_string(const char *s) _pure_;
 228
 229 const char* lldp_mode_to_string(LLDPMode m) _const_;
 230 LLDPMode lldp_mode_from_string(const char *s) _pure_;