| /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
| |
| /*** |
| This file is part of systemd. |
| |
| Copyright 2013 Tom Gundersen <teg@jklm.no> |
| |
| systemd is free software; you can redistribute it and/or modify it |
| under the terms of the GNU Lesser General Public License as published by |
| the Free Software Foundation; either version 2.1 of the License, or |
| (at your option) any later version. |
| |
| systemd is distributed in the hope that it will be useful, but |
| WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public License |
| along with systemd; If not, see <http://www.gnu.org/licenses/>. |
| ***/ |
| |
| #pragma once |
| |
| #include <arpa/inet.h> |
| |
| #include "sd-event.h" |
| #include "sd-netlink.h" |
| #include "sd-bus.h" |
| #include "sd-dhcp-client.h" |
| #include "sd-dhcp-server.h" |
| #include "sd-ipv4ll.h" |
| #include "sd-icmp6-nd.h" |
| #include "sd-dhcp6-client.h" |
| #include "udev.h" |
| #include "sd-lldp.h" |
| |
| #include "netlink-util.h" |
| #include "hashmap.h" |
| #include "list.h" |
| #include "set.h" |
| #include "condition.h" |
| #include "in-addr-util.h" |
| |
| #define CACHE_INFO_INFINITY_LIFE_TIME 0xFFFFFFFFU |
| #define DHCP_ROUTE_METRIC 1024 |
| #define IPV4LL_ROUTE_METRIC 2048 |
| |
| typedef struct NetDev NetDev; |
| typedef struct Network Network; |
| typedef struct Link Link; |
| typedef struct Address Address; |
| typedef struct Route Route; |
| typedef struct Manager Manager; |
| typedef struct AddressPool AddressPool; |
| typedef struct FdbEntry FdbEntry; |
| |
| typedef enum AddressFamilyBoolean { |
| /* This is a bitmask, though it usually doesn't feel that way! */ |
| ADDRESS_FAMILY_NO = 0, |
| ADDRESS_FAMILY_IPV4 = 1, |
| ADDRESS_FAMILY_IPV6 = 2, |
| ADDRESS_FAMILY_YES = 3, |
| _ADDRESS_FAMILY_BOOLEAN_MAX, |
| _ADDRESS_FAMILY_BOOLEAN_INVALID = -1, |
| } AddressFamilyBoolean; |
| |
| typedef enum LLMNRSupport { |
| LLMNR_SUPPORT_NO, |
| LLMNR_SUPPORT_YES, |
| LLMNR_SUPPORT_RESOLVE, |
| _LLMNR_SUPPORT_MAX, |
| _LLMNR_SUPPORT_INVALID = -1, |
| } LLMNRSupport; |
| |
| typedef enum LinkOperationalState { |
| LINK_OPERSTATE_OFF, |
| LINK_OPERSTATE_NO_CARRIER, |
| LINK_OPERSTATE_DORMANT, |
| LINK_OPERSTATE_CARRIER, |
| LINK_OPERSTATE_DEGRADED, |
| LINK_OPERSTATE_ROUTABLE, |
| _LINK_OPERSTATE_MAX, |
| _LINK_OPERSTATE_INVALID = -1 |
| } LinkOperationalState; |
| |
| typedef enum DCHPClientIdentifier { |
| DHCP_CLIENT_ID_MAC, |
| DHCP_CLIENT_ID_DUID, |
| _DHCP_CLIENT_ID_MAX, |
| _DHCP_CLIENT_ID_INVALID = -1, |
| } DCHPClientIdentifier; |
| |
| typedef enum IPv6PrivacyExtensions { |
| /* The values map to the kernel's /proc/sys/net/ipv6/conf/xxx/use_tempaddr values */ |
| IPV6_PRIVACY_EXTENSIONS_NO, |
| IPV6_PRIVACY_EXTENSIONS_PREFER_PUBLIC, |
| IPV6_PRIVACY_EXTENSIONS_YES, /* aka prefer-temporary */ |
| _IPV6_PRIVACY_EXTENSIONS_MAX, |
| _IPV6_PRIVACY_EXTENSIONS_INVALID = -1, |
| } IPv6PrivacyExtensions; |
| |
| struct FdbEntry { |
| Network *network; |
| unsigned section; |
| |
| struct ether_addr *mac_addr; |
| uint16_t vlan_id; |
| |
| LIST_FIELDS(FdbEntry, static_fdb_entries); |
| }; |
| |
| struct Network { |
| Manager *manager; |
| |
| char *filename; |
| char *name; |
| |
| struct ether_addr *match_mac; |
| char **match_path; |
| char **match_driver; |
| char **match_type; |
| char **match_name; |
| |
| Condition *match_host; |
| Condition *match_virt; |
| Condition *match_kernel; |
| Condition *match_arch; |
| |
| char *description; |
| NetDev *bridge; |
| NetDev *bond; |
| Hashmap *stacked_netdevs; |
| AddressFamilyBoolean dhcp; |
| DCHPClientIdentifier dhcp_client_identifier; |
| char *dhcp_vendor_class_identifier; |
| bool dhcp_dns; |
| bool dhcp_ntp; |
| bool dhcp_mtu; |
| bool dhcp_hostname; |
| bool dhcp_domains; |
| bool dhcp_sendhost; |
| bool dhcp_broadcast; |
| bool dhcp_critical; |
| bool dhcp_routes; |
| unsigned dhcp_route_metric; |
| AddressFamilyBoolean link_local; |
| bool ipv4ll_route; |
| union in_addr_union ipv6_token; |
| |
| bool dhcp_server; |
| |
| unsigned cost; |
| |
| AddressFamilyBoolean ip_forward; |
| bool ip_masquerade; |
| |
| IPv6PrivacyExtensions ipv6_privacy_extensions; |
| |
| struct ether_addr *mac; |
| unsigned mtu; |
| |
| bool lldp; |
| |
| LIST_HEAD(Address, static_addresses); |
| LIST_HEAD(Route, static_routes); |
| LIST_HEAD(FdbEntry, static_fdb_entries); |
| |
| Hashmap *addresses_by_section; |
| Hashmap *routes_by_section; |
| Hashmap *fdb_entries_by_section; |
| |
| bool wildcard_domain; |
| char **domains, **dns, **ntp, **bind_carrier; |
| |
| LLMNRSupport llmnr; |
| |
| LIST_FIELDS(Network, networks); |
| }; |
| |
| struct Address { |
| Network *network; |
| unsigned section; |
| |
| int family; |
| unsigned char prefixlen; |
| unsigned char scope; |
| uint32_t flags; |
| char *label; |
| |
| struct in_addr broadcast; |
| struct ifa_cacheinfo cinfo; |
| |
| union in_addr_union in_addr; |
| union in_addr_union in_addr_peer; |
| |
| bool ip_masquerade_done; |
| |
| LIST_FIELDS(Address, addresses); |
| }; |
| |
| struct Route { |
| Network *network; |
| unsigned section; |
| |
| int family; |
| unsigned char dst_prefixlen; |
| unsigned char src_prefixlen; |
| unsigned char scope; |
| uint32_t metrics; |
| unsigned char protocol; /* RTPROT_* */ |
| |
| union in_addr_union in_addr; |
| union in_addr_union dst_addr; |
| union in_addr_union src_addr; |
| union in_addr_union prefsrc_addr; |
| |
| LIST_FIELDS(Route, routes); |
| }; |
| |
| struct AddressPool { |
| Manager *manager; |
| |
| int family; |
| unsigned prefixlen; |
| |
| union in_addr_union in_addr; |
| |
| LIST_FIELDS(AddressPool, address_pools); |
| }; |
| |
| struct Manager { |
| sd_netlink *rtnl; |
| sd_event *event; |
| sd_event_source *bus_retry_event_source; |
| sd_bus *bus; |
| sd_bus_slot *prepare_for_sleep_slot; |
| struct udev *udev; |
| struct udev_monitor *udev_monitor; |
| sd_event_source *udev_event_source; |
| |
| bool enumerating; |
| |
| char *state_file; |
| LinkOperationalState operational_state; |
| |
| Hashmap *links; |
| Hashmap *netdevs; |
| Hashmap *networks_by_name; |
| LIST_HEAD(Network, networks); |
| LIST_HEAD(AddressPool, address_pools); |
| |
| usec_t network_dirs_ts_usec; |
| }; |
| |
| extern const char* const network_dirs[]; |
| |
| /* Manager */ |
| |
| extern const sd_bus_vtable manager_vtable[]; |
| |
| int manager_new(Manager **ret); |
| void manager_free(Manager *m); |
| |
| int manager_connect_bus(Manager *m); |
| int manager_run(Manager *m); |
| |
| int manager_load_config(Manager *m); |
| bool manager_should_reload(Manager *m); |
| |
| int manager_rtnl_enumerate_links(Manager *m); |
| int manager_rtnl_enumerate_addresses(Manager *m); |
| |
| int manager_send_changed(Manager *m, const char *property, ...) _sentinel_; |
| int manager_save(Manager *m); |
| |
| int manager_address_pool_acquire(Manager *m, int family, unsigned prefixlen, union in_addr_union *found); |
| |
| DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_free); |
| #define _cleanup_manager_free_ _cleanup_(manager_freep) |
| |
| /* Network */ |
| |
| int network_load(Manager *manager); |
| |
| void network_free(Network *network); |
| |
| DEFINE_TRIVIAL_CLEANUP_FUNC(Network*, network_free); |
| #define _cleanup_network_free_ _cleanup_(network_freep) |
| |
| int network_get_by_name(Manager *manager, const char *name, Network **ret); |
| int network_get(Manager *manager, struct udev_device *device, |
| const char *ifname, const struct ether_addr *mac, |
| Network **ret); |
| int network_apply(Manager *manager, Network *network, Link *link); |
| |
| 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); |
| |
| 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); |
| |
| 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); |
| |
| int config_parse_tunnel_address(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); |
| |
| int config_parse_vxlan_group_address(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); |
| |
| extern const sd_bus_vtable network_vtable[]; |
| |
| int network_node_enumerator(sd_bus *bus, const char *path, void *userdata, char ***nodes, sd_bus_error *error); |
| int network_object_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error); |
| |
| /* gperf */ |
| const struct ConfigPerfItem* network_network_gperf_lookup(const char *key, unsigned length); |
| |
| /* Route */ |
| int route_new_static(Network *network, unsigned section, Route **ret); |
| int route_new_dynamic(Route **ret, unsigned char rtm_protocol); |
| void route_free(Route *route); |
| int route_configure(Route *route, Link *link, sd_netlink_message_handler_t callback); |
| int route_drop(Route *route, Link *link, sd_netlink_message_handler_t callback); |
| |
| |
| DEFINE_TRIVIAL_CLEANUP_FUNC(Route*, route_free); |
| #define _cleanup_route_free_ _cleanup_(route_freep) |
| |
| int config_parse_gateway(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); |
| |
| int config_parse_destination(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); |
| |
| int config_parse_route_priority(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); |
| |
| int config_parse_route_scope(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); |
| /* Address */ |
| int address_new_static(Network *network, unsigned section, Address **ret); |
| int address_new_dynamic(Address **ret); |
| void address_free(Address *address); |
| int address_configure(Address *address, Link *link, sd_netlink_message_handler_t callback); |
| int address_update(Address *address, Link *link, sd_netlink_message_handler_t callback); |
| int address_drop(Address *address, Link *link, sd_netlink_message_handler_t callback); |
| int address_establish(Address *address, Link *link); |
| int address_release(Address *address, Link *link); |
| bool address_equal(Address *a1, Address *a2); |
| |
| DEFINE_TRIVIAL_CLEANUP_FUNC(Address*, address_free); |
| #define _cleanup_address_free_ _cleanup_(address_freep) |
| |
| int config_parse_address(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); |
| |
| int config_parse_broadcast(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); |
| |
| int config_parse_label(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); |
| |
| /* Forwarding database table. */ |
| int fdb_entry_configure(Link *const link, FdbEntry *const fdb_entry); |
| void fdb_entry_free(FdbEntry *fdb_entry); |
| int fdb_entry_new_static(Network *const network, const unsigned section, FdbEntry **ret); |
| |
| DEFINE_TRIVIAL_CLEANUP_FUNC(FdbEntry*, fdb_entry_free); |
| #define _cleanup_fdbentry_free_ _cleanup_(fdb_entry_freep) |
| |
| int config_parse_fdb_hwaddr(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); |
| |
| int config_parse_fdb_vlan_id(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); |
| |
| /* DHCP support */ |
| |
| 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); |
| 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); |
| |
| /* IPv4LL support (legacy) */ |
| |
| 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); |
| |
| /* IPv6 support */ |
| 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); |
| |
| /* LLMNR support */ |
| |
| const char* llmnr_support_to_string(LLMNRSupport i) _const_; |
| LLMNRSupport llmnr_support_from_string(const char *s) _pure_; |
| |
| int config_parse_llmnr(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); |
| |
| /* Address Pool */ |
| |
| int address_pool_new(Manager *m, AddressPool **ret, int family, const union in_addr_union *u, unsigned prefixlen); |
| int address_pool_new_from_string(Manager *m, AddressPool **ret, int family, const char *p, unsigned prefixlen); |
| void address_pool_free(AddressPool *p); |
| |
| int address_pool_acquire(AddressPool *p, unsigned prefixlen, union in_addr_union *found); |
| |
| const char *address_family_boolean_to_string(AddressFamilyBoolean b) _const_; |
| AddressFamilyBoolean address_family_boolean_from_string(const char *s) _const_; |
| |
| int config_parse_address_family_boolean(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); |
| |
| /* IPForwarding parser */ |
| int config_parse_address_family_boolean_with_kernel(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); |
| |
| /* Operational State */ |
| |
| const char* link_operstate_to_string(LinkOperationalState s) _const_; |
| LinkOperationalState link_operstate_from_string(const char *s) _pure_; |
| |
| /* IPv6 privacy extensions support */ |
| |
| const char* ipv6_privacy_extensions_to_string(IPv6PrivacyExtensions i) _const_; |
| IPv6PrivacyExtensions ipv6_privacy_extensions_from_string(const char *s) _pure_; |
| |
| 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); |