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 "dhcp-identifier.h"
  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 typedef enum DHCPUseDomains {
  55         DHCP_USE_DOMAINS_NO,
  56         DHCP_USE_DOMAINS_YES,
  57         DHCP_USE_DOMAINS_ROUTE,
  58         _DHCP_USE_DOMAINS_MAX,
  59         _DHCP_USE_DOMAINS_INVALID = -1,
  60 } DHCPUseDomains;
  61
  62 typedef enum LLDPMode {
  63         LLDP_MODE_NO = 0,
  64         LLDP_MODE_YES = 1,
  65         LLDP_MODE_ROUTERS_ONLY = 2,
  66         _LLDP_MODE_MAX,
  67         _LLDP_MODE_INVALID = -1,
  68 } LLDPMode;
  69
  70 struct Network {
  71         Manager *manager;
  72
  73         char *filename;
  74         char *name;
  75
  76         struct ether_addr *match_mac;
  77         char **match_path;
  78         char **match_driver;
  79         char **match_type;
  80         char **match_name;
  81
  82         Condition *match_host;
  83         Condition *match_virt;
  84         Condition *match_kernel;
  85         Condition *match_arch;
  86
  87         char *description;
  88
  89         NetDev *bridge;
  90         NetDev *bond;
  91         Hashmap *stacked_netdevs;
  92
  93         /* DHCP Client Support */
  94         AddressFamilyBoolean dhcp;
  95         DCHPClientIdentifier dhcp_client_identifier;
  96         char *dhcp_vendor_class_identifier;
  97         char *dhcp_hostname;
  98         bool dhcp_use_dns;
  99         bool dhcp_use_ntp;
 100         bool dhcp_use_mtu;
 101         bool dhcp_use_hostname;
 102         DHCPUseDomains dhcp_use_domains;
 103         bool dhcp_send_hostname;
 104         bool dhcp_broadcast;
 105         bool dhcp_critical;
 106         bool dhcp_use_routes;
 107         bool dhcp_use_timezone;
 108         unsigned dhcp_route_metric;
 109
 110         /* DHCP Server Support */
 111         bool dhcp_server;
 112         bool dhcp_server_emit_dns;
 113         struct in_addr *dhcp_server_dns;
 114         unsigned n_dhcp_server_dns;
 115         bool dhcp_server_emit_ntp;
 116         struct in_addr *dhcp_server_ntp;
 117         unsigned n_dhcp_server_ntp;
 118         bool dhcp_server_emit_timezone;
 119         char *dhcp_server_timezone;
 120         usec_t dhcp_server_default_lease_time_usec, dhcp_server_max_lease_time_usec;
 121         uint32_t dhcp_server_pool_offset;
 122         uint32_t dhcp_server_pool_size;
 123
 124         /* IPV4LL Support */
 125         AddressFamilyBoolean link_local;
 126         bool ipv4ll_route;
 127
 128         /* Bridge Support */
 129         bool use_bpdu;
 130         bool hairpin;
 131         bool fast_leave;
 132         bool allow_port_to_be_root;
 133         bool unicast_flood;
 134         unsigned cost;
 135
 136         AddressFamilyBoolean ip_forward;
 137         bool ip_masquerade;
 138
 139         int ipv6_accept_ra;
 140         int ipv6_dad_transmits;
 141         int ipv6_hop_limit;
 142
 143         union in_addr_union ipv6_token;
 144         IPv6PrivacyExtensions ipv6_privacy_extensions;
 145
 146         struct ether_addr *mac;
 147         unsigned mtu;
 148         uint32_t iaid;
 149         /* Value of Type in [DUID] section */
 150         DUIDType duid_type;
 151         /* DUID type code - RFC 3315 */
 152         uint16_t dhcp_duid_type;
 153         size_t dhcp_duid_len;
 154         uint8_t dhcp_duid[MAX_DUID_LEN];
 155
 156         LLDPMode lldp_mode; /* LLDP reception */
 157         bool lldp_emit;     /* LLDP transmission */
 158
 159         LIST_HEAD(Address, static_addresses);
 160         LIST_HEAD(Route, static_routes);
 161         LIST_HEAD(FdbEntry, static_fdb_entries);
 162
 163         Hashmap *addresses_by_section;
 164         Hashmap *routes_by_section;
 165         Hashmap *fdb_entries_by_section;
 166
 167         char **search_domains, **route_domains, **dns, **ntp, **bind_carrier;
 168
 169         ResolveSupport llmnr;
 170         ResolveSupport mdns;
 171         DnssecMode dnssec_mode;
 172         Set *dnssec_negative_trust_anchors;
 173
 174         LIST_FIELDS(Network, networks);
 175 };
 176
 177 void network_free(Network *network);
 178
 179 DEFINE_TRIVIAL_CLEANUP_FUNC(Network*, network_free);
 180 #define _cleanup_network_free_ _cleanup_(network_freep)
 181
 182 int network_load(Manager *manager);
 183
 184 int network_get_by_name(Manager *manager, const char *name, Network **ret);
 185 int network_get(Manager *manager, struct udev_device *device, const char *ifname, const struct ether_addr *mac, Network **ret);
 186 int network_apply(Manager *manager, Network *network, Link *link);
 187
 188 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);
 189 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);
 190 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);
 191 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);
 192 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);
 193 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);
 194 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);
 195 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);
 196 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);
 197 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);
 198 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);
 199 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);
 200 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);
 201 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);
 202
 203 /* Legacy IPv4LL support */
 204 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);
 205
 206 const struct ConfigPerfItem* network_network_gperf_lookup(const char *key, unsigned length);
 207
 208 extern const sd_bus_vtable network_vtable[];
 209
 210 int network_node_enumerator(sd_bus *bus, const char *path, void *userdata, char ***nodes, sd_bus_error *error);
 211 int network_object_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error);
 212
 213 const char* ipv6_privacy_extensions_to_string(IPv6PrivacyExtensions i) _const_;
 214 IPv6PrivacyExtensions ipv6_privacy_extensions_from_string(const char *s) _pure_;
 215
 216 const char* dhcp_use_domains_to_string(DHCPUseDomains p) _const_;
 217 DHCPUseDomains dhcp_use_domains_from_string(const char *s) _pure_;
 218
 219 const char* lldp_mode_to_string(LLDPMode m) _const_;
 220 LLDPMode lldp_mode_from_string(const char *s) _pure_;