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Diffstat (limited to 'src/network/networkd-link.h')
| -rw-r--r-- | src/network/networkd-link.h | 208 |
1 files changed, 208 insertions, 0 deletions
diff --git a/src/network/networkd-link.h b/src/network/networkd-link.h new file mode 100644 index 0000000000..30f01faf2a --- /dev/null +++ b/src/network/networkd-link.h @@ -0,0 +1,208 @@ +#pragma once + +/*** + 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/>. +***/ + +#include <endian.h> + +#include <systemd/sd-dhcp-client.h> +#include <systemd/sd-dhcp-server.h> +#include <systemd/sd-dhcp6-client.h> +#include <systemd/sd-ipv4ll.h> +#include <systemd/sd-lldp.h> +#include <systemd/sd-ndisc.h> + +typedef struct Link Link; + +typedef enum LinkState { + LINK_STATE_PENDING, + 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_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; + +#include "networkd-address.h" +#include "networkd-network.h" +#include "networkd.h" + +struct Link { + Manager *manager; + + int n_ref; + + int ifindex; + char *ifname; + char *state_file; + struct ether_addr mac; + struct in6_addr ipv6ll_address; + uint32_t mtu; + struct udev_device *udev_device; + + unsigned flags; + uint8_t kernel_operstate; + + Network *network; + + LinkState state; + LinkOperationalState operstate; + + unsigned link_messages; + unsigned enslaving; + + Set *addresses; + Set *addresses_foreign; + Set *routes; + Set *routes_foreign; + + sd_dhcp_client *dhcp_client; + sd_dhcp_lease *dhcp_lease; + char *lease_file; + uint16_t original_mtu; + unsigned dhcp4_messages; + bool dhcp4_configured; + bool dhcp6_configured; + unsigned ndisc_messages; + bool ndisc_configured; + + sd_ipv4ll *ipv4ll; + bool ipv4ll_address:1; + bool ipv4ll_route:1; + + bool static_configured; + + LIST_HEAD(Address, pool_addresses); + + sd_dhcp_server *dhcp_server; + + sd_ndisc *ndisc_router_discovery; + sd_dhcp6_client *dhcp6_client; + bool rtnl_extended_attrs; + + sd_lldp *lldp; + char *lldp_file; + + Hashmap *bound_by_links; + Hashmap *bound_to_links; +}; + +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_netlink_message *message, Link **ret); +void link_drop(Link *link); + +int link_address_remove_handler(sd_netlink *rtnl, sd_netlink_message *m, void *userdata); +int link_route_remove_handler(sd_netlink *rtnl, sd_netlink_message *m, void *userdata); + +void link_enter_failed(Link *link); +int link_initialized(Link *link, struct udev_device *device); + +void link_check_ready(Link *link); + +void link_update_operstate(Link *link); +int link_update(Link *link, sd_netlink_message *message); + +void link_dirty(Link *link); +void link_clean(Link *link); +int link_save(Link *link); + +int link_carrier_reset(Link *link); +bool link_has_carrier(Link *link); + +int link_ipv6ll_gained(Link *link, const struct in6_addr *address); + +int link_set_mtu(Link *link, uint32_t mtu); +int link_set_hostname(Link *link, const char *hostname); +int link_set_timezone(Link *link, const char *timezone); + +int ipv4ll_configure(Link *link); +int dhcp4_configure(Link *link); +int dhcp6_configure(Link *link); +int dhcp6_request_address(Link *link); +int ndisc_configure(Link *link); + +bool link_lldp_enabled(Link *link); +bool link_ipv4ll_enabled(Link *link); +bool link_ipv6ll_enabled(Link *link); +bool link_dhcp4_server_enabled(Link *link); +bool link_dhcp4_enabled(Link *link); +bool link_dhcp6_enabled(Link *link); +bool link_ipv6_accept_ra_enabled(Link *link); + +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_; + +extern const sd_bus_vtable link_vtable[]; + +int link_node_enumerator(sd_bus *bus, const char *path, void *userdata, char ***nodes, sd_bus_error *error); +int link_object_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error); +int link_send_changed(Link *link, const char *property, ...) _sentinel_; + +DEFINE_TRIVIAL_CLEANUP_FUNC(Link*, link_unref); +#define _cleanup_link_unref_ _cleanup_(link_unrefp) + +/* Macros which append INTERFACE= to the message */ + +#define log_link_full(link, level, error, ...) \ + ({ \ + Link *_l = (link); \ + _l ? log_object_internal(level, error, __FILE__, __LINE__, __func__, "INTERFACE=", _l->ifname, ##__VA_ARGS__) : \ + log_internal(level, error, __FILE__, __LINE__, __func__, ##__VA_ARGS__); \ + }) \ + +#define log_link_debug(link, ...) log_link_full(link, LOG_DEBUG, 0, ##__VA_ARGS__) +#define log_link_info(link, ...) log_link_full(link, LOG_INFO, 0, ##__VA_ARGS__) +#define log_link_notice(link, ...) log_link_full(link, LOG_NOTICE, 0, ##__VA_ARGS__) +#define log_link_warning(link, ...) log_link_full(link, LOG_WARNING, 0, ##__VA_ARGS__) +#define log_link_error(link, ...) log_link_full(link, LOG_ERR, 0, ##__VA_ARGS__) + +#define log_link_debug_errno(link, error, ...) log_link_full(link, LOG_DEBUG, error, ##__VA_ARGS__) +#define log_link_info_errno(link, error, ...) log_link_full(link, LOG_INFO, error, ##__VA_ARGS__) +#define log_link_notice_errno(link, error, ...) log_link_full(link, LOG_NOTICE, error, ##__VA_ARGS__) +#define log_link_warning_errno(link, error, ...) log_link_full(link, LOG_WARNING, error, ##__VA_ARGS__) +#define log_link_error_errno(link, error, ...) log_link_full(link, LOG_ERR, error, ##__VA_ARGS__) + +#define LOG_LINK_MESSAGE(link, fmt, ...) "MESSAGE=%s: " fmt, (link)->ifname, ##__VA_ARGS__ +#define LOG_LINK_INTERFACE(link) "INTERFACE=%s", (link)->ifname + +#define ADDRESS_FMT_VAL(address) \ + be32toh((address).s_addr) >> 24, \ + (be32toh((address).s_addr) >> 16) & 0xFFu, \ + (be32toh((address).s_addr) >> 8) & 0xFFu, \ + be32toh((address).s_addr) & 0xFFu |