X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Fnetwork%2Fnetworkd.h;h=0ba9ee58809f5a65c3ae2be35a14fb0e9dc00abc;hp=bfa01a94f0745492813a4d821ef4cbb5e5816f94;hb=0372cb2bd2342fa5c5585c666f79159a8341f4a6;hpb=2ad8416dd057e7e3185169609ca3006e7649f576 diff --git a/src/network/networkd.h b/src/network/networkd.h index bfa01a94f..0ba9ee588 100644 --- a/src/network/networkd.h +++ b/src/network/networkd.h @@ -22,56 +22,126 @@ #pragma once #include -#include #include "sd-event.h" #include "sd-rtnl.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 "rtnl-util.h" #include "hashmap.h" #include "list.h" +#include "set.h" +#include "condition-util.h" +#include "socket-util.h" -typedef struct Bridge Bridge; +#define CACHE_INFO_INFINITY_LIFE_TIME 0xFFFFFFFFU +#define VXLAN_VID_MAX (1u << 24) - 1 +#define DHCP_STATIC_ROUTE_METRIC 1024 + +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 bridge_join_callback bridge_join_callback; +typedef struct netdev_enslave_callback netdev_enslave_callback; -struct bridge_join_callback { +struct netdev_enslave_callback { sd_rtnl_message_handler_t callback; Link *link; - LIST_FIELDS(bridge_join_callback, callbacks); + LIST_FIELDS(netdev_enslave_callback, callbacks); }; -typedef enum BridgeState { - BRIDGE_STATE_FAILED, - BRIDGE_STATE_CREATING, - BRIDGE_STATE_CREATED, - BRIDGE_STATE_READY, - _BRIDGE_STATE_MAX, - _BRIDGE_STATE_INVALID = -1, -} BridgeState; - -struct Bridge { +typedef enum MacVlanMode { + NETDEV_MACVLAN_MODE_PRIVATE = MACVLAN_MODE_PRIVATE, + NETDEV_MACVLAN_MODE_VEPA = MACVLAN_MODE_VEPA, + NETDEV_MACVLAN_MODE_BRIDGE = MACVLAN_MODE_BRIDGE, + NETDEV_MACVLAN_MODE_PASSTHRU = MACVLAN_MODE_PASSTHRU, + _NETDEV_MACVLAN_MODE_MAX, + _NETDEV_MACVLAN_MODE_INVALID = -1 +} MacVlanMode; + +typedef enum NetDevKind { + NETDEV_KIND_BRIDGE, + NETDEV_KIND_BOND, + NETDEV_KIND_VLAN, + NETDEV_KIND_MACVLAN, + NETDEV_KIND_VXLAN, + NETDEV_KIND_IPIP, + NETDEV_KIND_GRE, + NETDEV_KIND_SIT, + NETDEV_KIND_VETH, + NETDEV_KIND_VTI, + NETDEV_KIND_DUMMY, + _NETDEV_KIND_MAX, + _NETDEV_KIND_INVALID = -1 +} NetDevKind; + +typedef enum NetDevState { + NETDEV_STATE_FAILED, + NETDEV_STATE_CREATING, + NETDEV_STATE_READY, + NETDEV_STATE_LINGER, + _NETDEV_STATE_MAX, + _NETDEV_STATE_INVALID = -1, +} NetDevState; + +struct NetDev { Manager *manager; - char *filename; + int n_ref; - char *description; - char *name; + char *filename; - Link *link; - BridgeState state; + Condition *match_host; + Condition *match_virt; + Condition *match_kernel; + Condition *match_arch; - LIST_HEAD(bridge_join_callback, callbacks); + char *description; + char *ifname; + char *ifname_peer; + size_t mtu; + struct ether_addr *mac; + struct ether_addr *mac_peer; + NetDevKind kind; + + uint64_t vlanid; + uint64_t vxlanid; + int32_t macvlan_mode; + + int ifindex; + NetDevState state; + + bool tunnel_pmtudisc; + bool learning; + unsigned ttl; + unsigned tos; + struct in_addr local; + struct in_addr remote; + struct in_addr group; + + LIST_HEAD(netdev_enslave_callback, callbacks); }; +typedef enum DHCPSupport { + DHCP_SUPPORT_NONE, + DHCP_SUPPORT_BOTH, + DHCP_SUPPORT_V4, + DHCP_SUPPORT_V6, + _DHCP_SUPPORT_MAX, + _DHCP_SUPPORT_INVALID = -1, +} DHCPSupport; + struct Network { Manager *manager; @@ -82,10 +152,30 @@ struct Network { char *match_driver; char *match_type; char *match_name; + Condition *match_host; + Condition *match_virt; + Condition *match_kernel; + Condition *match_arch; char *description; - Bridge *bridge; - bool dhcp; + NetDev *bridge; + NetDev *bond; + NetDev *tunnel; + Hashmap *vlans; + Hashmap *macvlans; + Hashmap *vxlans; + DHCPSupport dhcp; + bool dhcp_dns; + bool dhcp_ntp; + bool dhcp_mtu; + bool dhcp_hostname; + bool dhcp_domainname; + bool dhcp_sendhost; + bool dhcp_critical; + bool dhcp_routes; + bool ipv4ll; + + bool dhcp_server; LIST_HEAD(Address, static_addresses); LIST_HEAD(Route, static_routes); @@ -93,6 +183,9 @@ struct Network { Hashmap *addresses_by_section; Hashmap *routes_by_section; + LIST_HEAD(Address, dns); + LIST_HEAD(Address, ntp); + LIST_FIELDS(Network, networks); }; @@ -102,16 +195,15 @@ struct Address { unsigned char family; unsigned char prefixlen; + unsigned char scope; char *label; - struct in_addr netmask; + struct in_addr broadcast; + struct ifa_cacheinfo cinfo; - union { - struct in_addr in; - struct in6_addr in6; - } in_addr; + union in_addr_union in_addr; - LIST_FIELDS(Address, static_addresses); + LIST_FIELDS(Address, addresses); }; struct Route { @@ -119,64 +211,105 @@ struct Route { uint64_t section; unsigned char family; - unsigned char dst_family; unsigned char dst_prefixlen; + unsigned char scope; + uint32_t metrics; - union { - struct in_addr in; - struct in6_addr in6; - } in_addr; + union in_addr_union in_addr; + union in_addr_union dst_addr; - union { - struct in_addr in; - struct in6_addr in6; - } dst_addr; - - LIST_FIELDS(Route, static_routes); + LIST_FIELDS(Route, routes); }; typedef enum LinkState { - LINK_STATE_JOINING_BRIDGE, + LINK_STATE_INITIALIZING, + LINK_STATE_ENSLAVING, LINK_STATE_SETTING_ADDRESSES, LINK_STATE_SETTING_ROUTES, LINK_STATE_CONFIGURED, + LINK_STATE_UNMANAGED, LINK_STATE_FAILED, + LINK_STATE_LINGER, _LINK_STATE_MAX, _LINK_STATE_INVALID = -1 } LinkState; +typedef enum LinkOperationalState { + LINK_OPERSTATE_UNKNOWN, + LINK_OPERSTATE_DORMANT, + LINK_OPERSTATE_CARRIER, + LINK_OPERSTATE_DEGRADED, + LINK_OPERSTATE_ROUTABLE, + _LINK_OPERSTATE_MAX, + _LINK_OPERSTATE_INVALID = -1 +} LinkOperationalState; + struct Link { Manager *manager; + int n_ref; + uint64_t ifindex; char *ifname; + char *state_file; struct ether_addr mac; + struct udev_device *udev_device; unsigned flags; + uint8_t kernel_operstate; Network *network; - Route *dhcp_route; - Address *dhcp_address; - LinkState state; + LinkOperationalState operstate; unsigned addr_messages; unsigned route_messages; + unsigned enslaving; + + LIST_HEAD(Address, addresses); - sd_dhcp_client *dhcp; + sd_dhcp_client *dhcp_client; + sd_dhcp_lease *dhcp_lease; + char *lease_file; + uint16_t original_mtu; + sd_ipv4ll *ipv4ll; + + LIST_HEAD(Address, pool_addresses); + + sd_dhcp_server *dhcp_server; + + sd_icmp6_nd *icmp6_router_discovery; + sd_dhcp6_client *dhcp6_client; +}; + +struct AddressPool { + Manager *manager; + + unsigned family; + unsigned prefixlen; + + union in_addr_union in_addr; + + LIST_FIELDS(AddressPool, address_pools); }; struct Manager { sd_rtnl *rtnl; sd_event *event; + sd_bus *bus; struct udev *udev; struct udev_monitor *udev_monitor; sd_event_source *udev_event_source; + sd_event_source *sigterm_event_source; + sd_event_source *sigint_event_source; + + char *state_file; Hashmap *links; - Hashmap *bridges; + Hashmap *netdevs; LIST_HEAD(Network, networks); + LIST_HEAD(AddressPool, address_pools); usec_t network_dirs_ts_usec; }; @@ -191,26 +324,54 @@ void manager_free(Manager *m); int manager_load_config(Manager *m); bool manager_should_reload(Manager *m); -int manager_udev_enumerate_links(Manager *m); -int manager_udev_listen(Manager *m); +int manager_rtnl_enumerate_links(Manager *m); int manager_rtnl_listen(Manager *m); +int manager_udev_listen(Manager *m); +int manager_bus_listen(Manager *m); + +int manager_save(Manager *m); + +int manager_address_pool_acquire(Manager *m, unsigned family, unsigned prefixlen, union in_addr_union *found); DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_free); #define _cleanup_manager_free_ _cleanup_(manager_freep) -/* Bridge */ +/* NetDev */ + +#define VLANID_MAX 4094 -int bridge_load(Manager *manager); +int netdev_load(Manager *manager); +void netdev_drop(NetDev *netdev); -void bridge_free(Bridge *bridge); +NetDev *netdev_unref(NetDev *netdev); +NetDev *netdev_ref(NetDev *netdev); -DEFINE_TRIVIAL_CLEANUP_FUNC(Bridge*, bridge_free); -#define _cleanup_bridge_free_ _cleanup_(bridge_freep) +DEFINE_TRIVIAL_CLEANUP_FUNC(NetDev*, netdev_unref); +#define _cleanup_netdev_unref_ _cleanup_(netdev_unrefp) -int bridge_get(Manager *manager, const char *name, Bridge **ret); -int bridge_set_link(Manager *m, Link *link); -int bridge_join(Bridge *bridge, Link *link, sd_rtnl_message_handler_t cb); +int netdev_get(Manager *manager, const char *name, NetDev **ret); +int netdev_set_ifindex(NetDev *netdev, sd_rtnl_message *newlink); +int netdev_enslave(NetDev *netdev, Link *link, sd_rtnl_message_handler_t cb); +int netdev_create_tunnel(NetDev *netdev, Link *link, sd_rtnl_message_handler_t callback); +int netdev_create_veth(NetDev *netdev, sd_rtnl_message_handler_t callback); +int netdev_create_vxlan(NetDev *netdev, Link *link, sd_rtnl_message_handler_t callback); +int netdev_create_vlan(NetDev *netdev, Link *link, sd_rtnl_message_handler_t callback); +int netdev_create_macvlan(NetDev *netdev, Link *link, sd_rtnl_message_handler_t callback); +int netdev_create_dummy(NetDev *netdev, sd_rtnl_message_handler_t callback); + +const char *netdev_kind_to_string(NetDevKind d) _const_; +NetDevKind netdev_kind_from_string(const char *d) _pure_; + +const char *macvlan_mode_to_string(MacVlanMode d) _const_; +MacVlanMode macvlan_mode_from_string(const char *d) _pure_; + +int config_parse_netdev_kind(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_macvlan_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); + +/* gperf */ +const struct ConfigPerfItem* network_netdev_gperf_lookup(const char *key, unsigned length); /* Network */ @@ -221,22 +382,47 @@ void network_free(Network *network); DEFINE_TRIVIAL_CLEANUP_FUNC(Network*, network_free); #define _cleanup_network_free_ _cleanup_(network_freep) -int network_get(Manager *manager, struct udev_device *device, 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_bridge(const char *unit, const char *filename, unsigned line, +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); -/* gperf */ +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); -const struct ConfigPerfItem* network_gperf_lookup(const char *key, unsigned length); +/* 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); void route_free(Route *route); int route_configure(Route *route, Link *link, sd_rtnl_message_handler_t callback); +int route_drop(Route *route, Link *link, sd_rtnl_message_handler_t callback); + DEFINE_TRIVIAL_CLEANUP_FUNC(Route*, route_free); #define _cleanup_route_free_ _cleanup_(route_freep) @@ -254,27 +440,97 @@ 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_rtnl_message_handler_t callback); +int address_update(Address *address, Link *link, sd_rtnl_message_handler_t callback); int address_drop(Address *address, Link *link, sd_rtnl_message_handler_t callback); +bool address_equal(Address *a1, Address *a2); DEFINE_TRIVIAL_CLEANUP_FUNC(Address*, address_free); #define _cleanup_address_free_ _cleanup_(address_freep) +int config_parse_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); + 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); /* Link */ -int link_new(Manager *manager, struct udev_device *device, Link **ret); -void link_free(Link *link); -int link_add(Manager *manager, struct udev_device *device, Link **ret); -int link_configure(Link *link); +Link *link_unref(Link *link); +Link *link_ref(Link *link); +int link_get(Manager *m, int ifindex, Link **ret); +int link_add(Manager *manager, sd_rtnl_message *message, Link **ret); +void link_drop(Link *link); int link_update(Link *link, sd_rtnl_message *message); +int link_rtnl_process_address(sd_rtnl *rtnl, sd_rtnl_message *message, void *userdata); + +int link_initialized(Link *link, struct udev_device *device); + +int link_save(Link *link); + +bool link_has_carrier(unsigned flags, uint8_t operstate); + +const char* link_state_to_string(LinkState s) _const_; +LinkState link_state_from_string(const char *s) _pure_; + +const char* link_operstate_to_string(LinkOperationalState s) _const_; +LinkOperationalState link_operstate_from_string(const char *s) _pure_; + +DEFINE_TRIVIAL_CLEANUP_FUNC(Link*, link_unref); +#define _cleanup_link_unref_ _cleanup_(link_unrefp) + +/* DHCP support */ + +const char* dhcp_support_to_string(DHCPSupport i) _const_; +DHCPSupport dhcp_support_from_string(const char *s) _pure_; + +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); + +/* Address Pool */ + +int address_pool_new(Manager *m, AddressPool **ret, unsigned family, const union in_addr_union *u, unsigned prefixlen); +int address_pool_new_from_string(Manager *m, AddressPool **ret, unsigned 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); + +/* Macros which append INTERFACE= to the message */ + +#define log_full_link(level, link, fmt, ...) log_meta_object(level, __FILE__, __LINE__, __func__, "INTERFACE=", link->ifname, "%-*s: " fmt, IFNAMSIZ, link->ifname, ##__VA_ARGS__) +#define log_debug_link(link, ...) log_full_link(LOG_DEBUG, link, ##__VA_ARGS__) +#define log_info_link(link, ...) log_full_link(LOG_INFO, link, ##__VA_ARGS__) +#define log_notice_link(link, ...) log_full_link(LOG_NOTICE, link, ##__VA_ARGS__) +#define log_warning_link(link, ...) log_full_link(LOG_WARNING, link, ##__VA_ARGS__) +#define log_error_link(link, ...) log_full_link(LOG_ERR, link, ##__VA_ARGS__) + +#define log_struct_link(level, link, ...) log_struct(level, "INTERFACE=%s", link->ifname, __VA_ARGS__) + +/* More macros which append INTERFACE= to the message */ + +#define log_full_netdev(level, netdev, fmt, ...) log_meta_object(level, __FILE__, __LINE__, __func__, "INTERFACE=", netdev->ifname, "%-*s: " fmt, IFNAMSIZ, netdev->ifname, ##__VA_ARGS__) +#define log_debug_netdev(netdev, ...) log_full_netdev(LOG_DEBUG, netdev, ##__VA_ARGS__) +#define log_info_netdev(netdev, ...) log_full_netdev(LOG_INFO, netdev, ##__VA_ARGS__) +#define log_notice_netdev(netdev, ...) log_full_netdev(LOG_NOTICE, netdev, ##__VA_ARGS__) +#define log_warning_netdev(netdev, ...) log_full_netdev(LOG_WARNING, netdev,## __VA_ARGS__) +#define log_error_netdev(netdev, ...) log_full_netdev(LOG_ERR, netdev, ##__VA_ARGS__) + +#define log_struct_netdev(level, netdev, ...) log_struct(level, "INTERFACE=%s", netdev->ifname, __VA_ARGS__) -DEFINE_TRIVIAL_CLEANUP_FUNC(Link*, link_free); -#define _cleanup_link_free_ _cleanup_(link_freep) +#define NETDEV(netdev) "INTERFACE=%s", netdev->ifname +#define ADDRESS_FMT_VAL(address) \ + (address).s_addr & 0xFF, \ + ((address).s_addr >> 8) & 0xFF, \ + ((address).s_addr >> 16) & 0xFF, \ + (address).s_addr >> 24