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_router;
 131         bool dhcp_server_emit_timezone;
 132         char *dhcp_server_timezone;
 133         usec_t dhcp_server_default_lease_time_usec, dhcp_server_max_lease_time_usec;
 134         uint32_t dhcp_server_pool_offset;
 135         uint32_t dhcp_server_pool_size;
 136
 137         /* IPV4LL Support */
 138         AddressFamilyBoolean link_local;
 139         bool ipv4ll_route;
 140
 141         /* Bridge Support */
 142         bool use_bpdu;
 143         bool hairpin;
 144         bool fast_leave;
 145         bool allow_port_to_be_root;
 146         bool unicast_flood;
 147         unsigned cost;
 148
 149         AddressFamilyBoolean ip_forward;
 150         bool ip_masquerade;
 151
 152         int ipv6_accept_ra;
 153         int ipv6_dad_transmits;
 154         int ipv6_hop_limit;
 155         int proxy_arp;
 156
 157         union in_addr_union ipv6_token;
 158         IPv6PrivacyExtensions ipv6_privacy_extensions;
 159
 160         struct ether_addr *mac;
 161         unsigned mtu;
 162         uint32_t iaid;
 163         DUID duid;
 164
 165         LLDPMode lldp_mode; /* LLDP reception */
 166         LLDPEmit lldp_emit; /* LLDP transmission */
 167
 168         LIST_HEAD(Address, static_addresses);
 169         LIST_HEAD(Route, static_routes);
 170         LIST_HEAD(FdbEntry, static_fdb_entries);
 171
 172         Hashmap *addresses_by_section;
 173         Hashmap *routes_by_section;
 174         Hashmap *fdb_entries_by_section;
 175
 176         char **search_domains, **route_domains, **dns, **ntp, **bind_carrier;
 177
 178         ResolveSupport llmnr;
 179         ResolveSupport mdns;
 180         DnssecMode dnssec_mode;
 181         Set *dnssec_negative_trust_anchors;
 182
 183         LIST_FIELDS(Network, networks);
 184 };
 185
 186 void network_free(Network *network);
 187
 188 DEFINE_TRIVIAL_CLEANUP_FUNC(Network*, network_free);
 189 #define _cleanup_network_free_ _cleanup_(network_freep)
 190
 191 int network_load(Manager *manager);
 192
 193 int network_get_by_name(Manager *manager, const char *name, Network **ret);
 194 int network_get(Manager *manager, struct udev_device *device, const char *ifname, const struct ether_addr *mac, Network **ret);
 195 int network_apply(Manager *manager, Network *network, Link *link);
 196
 197 bool network_has_static_ipv6_addresses(Network *network);
 198
 199 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);
 200 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);
 201 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);
 202 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);
 203 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);
 204 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);
 205 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);
 206 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);
 207 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);
 208 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);
 209 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);
 210 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);
 211 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);
 212 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);
 213
 214 /* Legacy IPv4LL support */
 215 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);
 216
 217 const struct ConfigPerfItem* network_network_gperf_lookup(const char *key, unsigned length);
 218
 219 extern const sd_bus_vtable network_vtable[];
 220
 221 int network_node_enumerator(sd_bus *bus, const char *path, void *userdata, char ***nodes, sd_bus_error *error);
 222 int network_object_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error);
 223
 224 const char* ipv6_privacy_extensions_to_string(IPv6PrivacyExtensions i) _const_;
 225 IPv6PrivacyExtensions ipv6_privacy_extensions_from_string(const char *s) _pure_;
 226
 227 const char* dhcp_use_domains_to_string(DHCPUseDomains p) _const_;
 228 DHCPUseDomains dhcp_use_domains_from_string(const char *s) _pure_;
 229
 230 const char* lldp_mode_to_string(LLDPMode m) _const_;
 231 LLDPMode lldp_mode_from_string(const char *s) _pure_;