#include "netlink-util.h"
#include "network-internal.h"
#include "networkd-address-label.h"
+#include "networkd-address.h"
#include "networkd-can.h"
#include "networkd-dhcp-server.h"
#include "networkd-dhcp4.h"
#include "networkd-neighbor.h"
#include "networkd-nexthop.h"
#include "networkd-sriov.h"
+#include "networkd-sysctl.h"
#include "networkd-radv.h"
#include "networkd-routing-policy-rule.h"
#include "networkd-wifi.h"
#include "util.h"
#include "vrf.h"
-uint32_t link_get_vrf_table(Link *link) {
- return link->network->vrf ? VRF(link->network->vrf)->table : RT_TABLE_MAIN;
-}
-
-uint32_t link_get_dhcp_route_table(Link *link) {
- /* When the interface is part of an VRF use the VRFs routing table, unless
- * another table is explicitly specified. */
- if (link->network->dhcp_route_table_set)
- return link->network->dhcp_route_table;
- return link_get_vrf_table(link);
-}
-
-uint32_t link_get_ipv6_accept_ra_route_table(Link *link) {
- if (link->network->ipv6_accept_ra_route_table_set)
- return link->network->ipv6_accept_ra_route_table;
- return link_get_vrf_table(link);
-}
-
-DUID* link_get_duid(Link *link) {
- if (link->network->duid.type != _DUID_TYPE_INVALID)
- return &link->network->duid;
- else
- return &link->manager->duid;
-}
-
-static bool link_dhcp6_enabled(Link *link) {
- assert(link);
-
- if (!socket_ipv6_is_supported())
- return false;
-
- if (link->flags & IFF_LOOPBACK)
- return false;
-
- if (!link->network)
- return false;
-
- if (link->network->bond)
- return false;
-
- if (link->iftype == ARPHRD_CAN)
- return false;
-
- return link->network->dhcp & ADDRESS_FAMILY_IPV6;
-}
-
-static bool link_dhcp4_enabled(Link *link) {
- assert(link);
-
- if (link->flags & IFF_LOOPBACK)
- return false;
-
- if (!link->network)
- return false;
-
- if (link->network->bond)
- return false;
-
- if (link->iftype == ARPHRD_CAN)
- return false;
-
- return link->network->dhcp & ADDRESS_FAMILY_IPV4;
-}
-
-static bool link_dhcp4_server_enabled(Link *link) {
- assert(link);
-
- if (link->flags & IFF_LOOPBACK)
- return false;
-
- if (!link->network)
- return false;
-
- if (link->network->bond)
- return false;
-
- if (link->iftype == ARPHRD_CAN)
- return false;
-
- return link->network->dhcp_server;
-}
-
bool link_ipv4ll_enabled(Link *link, AddressFamily mask) {
assert(link);
assert((mask & ~(ADDRESS_FAMILY_IPV4 | ADDRESS_FAMILY_FALLBACK_IPV4)) == 0);
return link->network->link_local & ADDRESS_FAMILY_IPV6;
}
-static bool link_ipv6_enabled(Link *link) {
+bool link_ipv6_enabled(Link *link) {
assert(link);
if (!socket_ipv6_is_supported())
return false;
}
-static bool link_radv_enabled(Link *link) {
- assert(link);
-
- if (!link_ipv6ll_enabled(link))
- return false;
-
- return link->network->router_prefix_delegation != RADV_PREFIX_DELEGATION_NONE;
-}
-
-static bool link_ipv4_forward_enabled(Link *link) {
- assert(link);
-
- if (link->flags & IFF_LOOPBACK)
- return false;
-
- if (!link->network)
- return false;
-
- if (link->network->ip_forward == _ADDRESS_FAMILY_INVALID)
- return false;
-
- return link->network->ip_forward & ADDRESS_FAMILY_IPV4;
-}
-
-static bool link_ipv6_forward_enabled(Link *link) {
- assert(link);
-
- if (!socket_ipv6_is_supported())
- return false;
-
- if (link->flags & IFF_LOOPBACK)
- return false;
-
- if (!link->network)
- return false;
-
- if (link->network->ip_forward == _ADDRESS_FAMILY_INVALID)
- return false;
-
- return link->network->ip_forward & ADDRESS_FAMILY_IPV6;
-}
-
-static bool link_proxy_arp_enabled(Link *link) {
- assert(link);
-
- if (link->flags & IFF_LOOPBACK)
- return false;
-
- if (!link->network)
- return false;
-
- if (link->network->proxy_arp < 0)
- return false;
-
- return true;
-}
-
-static bool link_ipv6_accept_ra_enabled(Link *link) {
- assert(link);
-
- if (!socket_ipv6_is_supported())
- return false;
-
- if (link->flags & IFF_LOOPBACK)
- return false;
-
- if (!link->network)
- return false;
-
- if (!link_ipv6ll_enabled(link))
- return false;
-
- /* If unset use system default (enabled if local forwarding is disabled.
- * disabled if local forwarding is enabled).
- * If set, ignore or enforce RA independent of local forwarding state.
- */
- if (link->network->ipv6_accept_ra < 0)
- /* default to accept RA if ip_forward is disabled and ignore RA if ip_forward is enabled */
- return !link_ipv6_forward_enabled(link);
- else if (link->network->ipv6_accept_ra > 0)
- /* accept RA even if ip_forward is enabled */
- return true;
- else
- /* ignore RA */
- return false;
-}
-
-static IPv6PrivacyExtensions link_ipv6_privacy_extensions(Link *link) {
- assert(link);
-
- if (!socket_ipv6_is_supported())
- return _IPV6_PRIVACY_EXTENSIONS_INVALID;
-
- if (link->flags & IFF_LOOPBACK)
- return _IPV6_PRIVACY_EXTENSIONS_INVALID;
-
- if (!link->network)
- return _IPV6_PRIVACY_EXTENSIONS_INVALID;
-
- return link->network->ipv6_privacy_extensions;
-}
-
-static int link_update_ipv6_sysctl(Link *link) {
- bool enabled;
- int r;
-
- if (link->flags & IFF_LOOPBACK)
- return 0;
-
- enabled = link_ipv6_enabled(link);
- if (enabled) {
- r = sysctl_write_ip_property_boolean(AF_INET6, link->ifname, "disable_ipv6", false);
- if (r < 0)
- return log_link_warning_errno(link, r, "Cannot enable IPv6: %m");
-
- log_link_info(link, "IPv6 successfully enabled");
- }
-
- return 0;
-}
-
static bool link_is_enslaved(Link *link) {
if (link->flags & IFF_SLAVE)
/* Even if the link is not managed by networkd, honor IFF_SLAVE flag. */
link->dhcp6_lease = sd_dhcp6_lease_unref(link->dhcp6_lease);
link->ndisc = sd_ndisc_unref(link->ndisc);
link->radv = sd_radv_unref(link->radv);
+ link->dhcp_acd = sd_ipv4acd_unref(link->dhcp_acd);
}
static Link *link_free(Link *link) {
- Address *address;
-
assert(link);
link_ntp_settings_clear(link);
link->addresses = set_free(link->addresses);
link->addresses_foreign = set_free(link->addresses_foreign);
+ link->pool_addresses = set_free(link->pool_addresses);
link->static_addresses = set_free(link->static_addresses);
link->dhcp6_addresses = set_free(link->dhcp6_addresses);
link->dhcp6_addresses_old = set_free(link->dhcp6_addresses_old);
link->dhcp6_pd_addresses_old = set_free(link->dhcp6_pd_addresses_old);
link->ndisc_addresses = set_free(link->ndisc_addresses);
- while ((address = link->pool_addresses)) {
- LIST_REMOVE(addresses, link->pool_addresses, address);
- address_free(address);
- }
-
link_lldp_emit_stop(link);
link_free_engines(link);
free(link->lease_file);
link_dirty(link);
}
-int link_stop_clients(Link *link, bool may_keep_dhcp) {
+int link_stop_engines(Link *link, bool may_keep_dhcp) {
int r = 0, k;
- Address *ad;
assert(link);
assert(link->manager);
(link->manager->restarting ||
FLAGS_SET(link->network->keep_configuration, KEEP_CONFIGURATION_DHCP_ON_STOP));
- if (link->dhcp_client && !keep_dhcp) {
+ if (!keep_dhcp) {
k = sd_dhcp_client_stop(link->dhcp_client);
if (k < 0)
r = log_link_warning_errno(link, k, "Could not stop DHCPv4 client: %m");
}
- if (link->ipv4ll) {
- k = sd_ipv4ll_stop(link->ipv4ll);
- if (k < 0)
- r = log_link_warning_errno(link, k, "Could not stop IPv4 link-local: %m");
- }
+ k = sd_ipv4acd_stop(link->dhcp_acd);
+ if (k < 0)
+ r = log_link_warning_errno(link, k, "Could not stop IPv4 ACD client for DHCPv4: %m");
- if (link->network)
- LIST_FOREACH(addresses, ad, link->network->static_addresses)
- if (ad->acd && sd_ipv4acd_is_running(ad->acd) == 0) {
- k = sd_ipv4acd_stop(ad->acd);
- if (k < 0)
- r = log_link_warning_errno(link, k, "Could not stop IPv4 ACD client: %m");
- }
+ k = sd_dhcp_server_stop(link->dhcp_server);
+ if (k < 0)
+ r = log_link_warning_errno(link, k, "Could not stop DHCPv4 server: %m");
- if (link->dhcp6_client) {
- k = sd_dhcp6_client_stop(link->dhcp6_client);
- if (k < 0)
- r = log_link_warning_errno(link, k, "Could not stop DHCPv6 client: %m");
- }
+ k = sd_ipv4ll_stop(link->ipv4ll);
+ if (k < 0)
+ r = log_link_warning_errno(link, k, "Could not stop IPv4 link-local: %m");
- if (link_dhcp6_pd_is_enabled(link)) {
- k = dhcp6_pd_remove(link);
- if (k < 0)
- r = log_link_warning_errno(link, k, "Could not remove DHCPv6 PD addresses and routes: %m");
- }
+ k = ipv4_dad_stop(link);
+ if (k < 0)
+ r = log_link_warning_errno(link, k, "Could not stop IPv4 ACD client: %m");
- if (link->ndisc) {
- k = sd_ndisc_stop(link->ndisc);
- if (k < 0)
- r = log_link_warning_errno(link, k, "Could not stop IPv6 Router Discovery: %m");
- }
+ k = sd_dhcp6_client_stop(link->dhcp6_client);
+ if (k < 0)
+ r = log_link_warning_errno(link, k, "Could not stop DHCPv6 client: %m");
- if (link->radv) {
- k = sd_radv_stop(link->radv);
- if (k < 0)
- r = log_link_warning_errno(link, k, "Could not stop IPv6 Router Advertisement: %m");
- }
+ k = dhcp6_pd_remove(link);
+ if (k < 0)
+ r = log_link_warning_errno(link, k, "Could not remove DHCPv6 PD addresses and routes: %m");
+
+ k = sd_ndisc_stop(link->ndisc);
+ if (k < 0)
+ r = log_link_warning_errno(link, k, "Could not stop IPv6 Router Discovery: %m");
+
+ k = sd_radv_stop(link->radv);
+ if (k < 0)
+ r = log_link_warning_errno(link, k, "Could not stop IPv6 Router Advertisement: %m");
link_lldp_emit_stop(link);
return r;
link_set_state(link, LINK_STATE_FAILED);
- link_stop_clients(link, false);
+ (void) link_stop_engines(link, false);
link_dirty(link);
}
return r;
/* now that we can figure out a default address for the dhcp server, start it */
- if (link_dhcp4_server_enabled(link) && (link->flags & IFF_UP)) {
- r = dhcp4_server_configure(link);
- if (r < 0)
- return r;
- log_link_debug(link, "Offering DHCPv4 leases");
- }
-
- return 0;
-}
-
-static int link_set_bridge_vlan(Link *link) {
- int r;
-
- r = br_vlan_configure(link, link->network->pvid, link->network->br_vid_bitmap, link->network->br_untagged_bitmap);
+ r = dhcp4_server_configure(link);
if (r < 0)
- log_link_error_errno(link, r, "Failed to assign VLANs to bridge port: %m");
-
- return r;
-}
-
-static int link_set_proxy_arp(Link *link) {
- int r;
-
- if (!link_proxy_arp_enabled(link))
- return 0;
-
- r = sysctl_write_ip_property_boolean(AF_INET, link->ifname, "proxy_arp", link->network->proxy_arp > 0);
- if (r < 0)
- log_link_warning_errno(link, r, "Cannot configure proxy ARP for interface: %m");
+ return r;
return 0;
}
assert(link);
- if (link_ipv6_accept_ra_enabled(link)) {
- assert(link->ndisc);
-
+ if (link->ndisc) {
log_link_debug(link, "Discovering IPv6 routers");
r = sd_ndisc_start(link->ndisc);
return log_link_warning_errno(link, r, "Could not start IPv6 Router Discovery: %m");
}
- if (link_radv_enabled(link)) {
+ if (link->radv) {
assert(link->radv);
assert(in_addr_is_link_local(AF_INET6, (const union in_addr_union*)&link->ipv6ll_address) > 0);
return log_link_warning_errno(link, r, "Could not acquire IPv4 link-local address: %m");
}
- if (link_dhcp4_enabled(link)) {
- assert(link->dhcp_client);
-
+ if (link->dhcp_client) {
log_link_debug(link, "Acquiring DHCPv4 lease");
r = sd_dhcp_client_start(link->dhcp_client);
return r;
}
- if (link_lldp_emit_enabled(link)) {
- r = link_lldp_emit_start(link);
- if (r < 0)
- return log_link_warning_errno(link, r, "Failed to start LLDP transmission: %m");
- }
+ r = link_lldp_emit_start(link);
+ if (r < 0)
+ return log_link_warning_errno(link, r, "Failed to start LLDP transmission: %m");
return 0;
}
log_link_error_errno(link, r, "Failed to add to bond master's slave list: %m");
}
- if (link->network->use_br_vlan &&
- (link->network->bridge || streq_ptr("bridge", link->kind))) {
- r = link_set_bridge_vlan(link);
- if (r < 0)
- log_link_error_errno(link, r, "Could not set bridge vlan: %m");
- }
+ r = link_set_bridge_vlan(link);
+ if (r < 0)
+ log_link_error_errno(link, r, "Could not set bridge vlan: %m");
/* Skip setting up addresses until it gets carrier,
or it would try to set addresses twice,
return 0;
link_set_state(link, LINK_STATE_CONFIGURING);
+
+ r = link_acquire_conf(link);
+ if (r < 0)
+ return r;
+
return link_set_static_configs(link);
}
return 0;
}
-static int link_set_ipv4_forward(Link *link) {
+static int link_drop_foreign_config(Link *link) {
int r;
- if (!link_ipv4_forward_enabled(link))
- return 0;
-
- /* We propagate the forwarding flag from one interface to the
- * global setting one way. This means: as long as at least one
- * interface was configured at any time that had IP forwarding
- * enabled the setting will stay on for good. We do this
- * primarily to keep IPv4 and IPv6 packet forwarding behaviour
- * somewhat in sync (see below). */
+ r = link_drop_foreign_addresses(link);
+ if (r < 0)
+ return r;
- r = sysctl_write_ip_property(AF_INET, NULL, "ip_forward", "1");
+ r = link_drop_foreign_neighbors(link);
if (r < 0)
- log_link_warning_errno(link, r, "Cannot turn on IPv4 packet forwarding, ignoring: %m");
+ return r;
- return 0;
+ return link_drop_foreign_routes(link);
}
-static int link_set_ipv6_forward(Link *link) {
+static int link_drop_config(Link *link) {
int r;
- if (!link_ipv6_forward_enabled(link))
- return 0;
+ r = link_drop_addresses(link);
+ if (r < 0)
+ return r;
- /* On Linux, the IPv6 stack does not know a per-interface
- * packet forwarding setting: either packet forwarding is on
- * for all, or off for all. We hence don't bother with a
- * per-interface setting, but simply propagate the interface
- * flag, if it is set, to the global flag, one-way. Note that
- * while IPv4 would allow a per-interface flag, we expose the
- * same behaviour there and also propagate the setting from
- * one to all, to keep things simple (see above). */
+ r = link_drop_neighbors(link);
+ if (r < 0)
+ return r;
- r = sysctl_write_ip_property(AF_INET6, "all", "forwarding", "1");
+ r = link_drop_routes(link);
if (r < 0)
- log_link_warning_errno(link, r, "Cannot configure IPv6 packet forwarding, ignoring: %m");
+ return r;
+
+ ndisc_flush(link);
return 0;
}
-static int link_set_ipv6_privacy_extensions(Link *link) {
- IPv6PrivacyExtensions s;
+int link_configure(Link *link) {
int r;
- s = link_ipv6_privacy_extensions(link);
- if (s < 0)
- return 0;
+ assert(link);
+ assert(link->network);
+ assert(link->state == LINK_STATE_INITIALIZED);
- r = sysctl_write_ip_property_int(AF_INET6, link->ifname, "use_tempaddr", (int) link->network->ipv6_privacy_extensions);
+ r = link_configure_traffic_control(link);
if (r < 0)
- log_link_warning_errno(link, r, "Cannot configure IPv6 privacy extension for interface: %m");
+ return r;
- return 0;
-}
+ r = link_configure_sr_iov(link);
+ if (r < 0)
+ return r;
-static int link_set_ipv6_accept_ra(Link *link) {
- int r;
+ if (link->iftype == ARPHRD_CAN)
+ return link_configure_can(link);
- /* Make this a NOP if IPv6 is not available */
- if (!socket_ipv6_is_supported())
- return 0;
+ r = link_set_sysctl(link);
+ if (r < 0)
+ return r;
- if (link->flags & IFF_LOOPBACK)
- return 0;
+ r = link_set_ipv6_proxy_ndp_addresses(link);
+ if (r < 0)
+ return r;
- if (!link->network)
- return 0;
+ r = link_set_flags(link);
+ if (r < 0)
+ return r;
- r = sysctl_write_ip_property(AF_INET6, link->ifname, "accept_ra", "0");
+ r = link_set_group(link);
if (r < 0)
- log_link_warning_errno(link, r, "Cannot disable kernel IPv6 accept_ra for interface: %m");
+ return r;
- return 0;
-}
+ r = ipv4ll_configure(link);
+ if (r < 0)
+ return r;
-static int link_set_ipv6_dad_transmits(Link *link) {
- int r;
-
- /* Make this a NOP if IPv6 is not available */
- if (!socket_ipv6_is_supported())
- return 0;
-
- if (link->flags & IFF_LOOPBACK)
- return 0;
-
- if (!link->network)
- return 0;
-
- if (link->network->ipv6_dad_transmits < 0)
- return 0;
-
- r = sysctl_write_ip_property_int(AF_INET6, link->ifname, "dad_transmits", link->network->ipv6_dad_transmits);
- if (r < 0)
- log_link_warning_errno(link, r, "Cannot set IPv6 dad transmits for interface: %m");
-
- return 0;
-}
-
-static int link_set_ipv6_hop_limit(Link *link) {
- int r;
-
- /* Make this a NOP if IPv6 is not available */
- if (!socket_ipv6_is_supported())
- return 0;
-
- if (link->flags & IFF_LOOPBACK)
- return 0;
-
- if (!link->network)
- return 0;
-
- if (link->network->ipv6_hop_limit < 0)
- return 0;
-
- r = sysctl_write_ip_property_int(AF_INET6, link->ifname, "hop_limit", link->network->ipv6_hop_limit);
- if (r < 0)
- log_link_warning_errno(link, r, "Cannot set IPv6 hop limit for interface: %m");
-
- return 0;
-}
-
-static int link_set_ipv6_mtu(Link *link) {
- int r;
-
- /* Make this a NOP if IPv6 is not available */
- if (!socket_ipv6_is_supported())
- return 0;
-
- if (link->flags & IFF_LOOPBACK)
- return 0;
-
- if (link->network->ipv6_mtu == 0)
- return 0;
-
- /* IPv6 protocol requires a minimum MTU of IPV6_MTU_MIN(1280) bytes
- * on the interface. Bump up IPv6 MTU bytes to IPV6_MTU_MIN. */
- if (link->network->ipv6_mtu < IPV6_MIN_MTU) {
- log_link_notice(link, "Bumping IPv6 MTU to "STRINGIFY(IPV6_MIN_MTU)" byte minimum required");
- link->network->ipv6_mtu = IPV6_MIN_MTU;
- }
-
- r = sysctl_write_ip_property_uint32(AF_INET6, link->ifname, "mtu", link->network->ipv6_mtu);
- if (r < 0) {
- if (link->mtu < link->network->ipv6_mtu)
- log_link_warning(link, "Cannot set IPv6 MTU %"PRIu32" higher than device MTU %"PRIu32,
- link->network->ipv6_mtu, link->mtu);
- else
- log_link_warning_errno(link, r, "Cannot set IPv6 MTU for interface: %m");
- }
-
- link->ipv6_mtu_set = true;
-
- return 0;
-}
-
-static int link_set_ipv4_accept_local(Link *link) {
- int r;
-
- if (link->flags & IFF_LOOPBACK)
- return 0;
-
- if (link->network->ipv4_accept_local < 0)
- return 0;
-
- r = sysctl_write_ip_property_boolean(AF_INET, link->ifname, "accept_local", link->network->ipv4_accept_local);
- if (r < 0)
- log_link_warning_errno(link, r, "Cannot set IPv4 accept_local flag for interface: %m");
-
- return 0;
-}
-
-static int link_enumerate_ipv6_tentative_addresses(Link *link) {
- _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL, *reply = NULL;
- sd_netlink_message *addr;
- int r;
-
- assert(link);
- assert(link->manager);
- assert(link->manager->rtnl);
-
- r = sd_rtnl_message_new_addr(link->manager->rtnl, &req, RTM_GETADDR, 0, AF_INET6);
+ r = dhcp4_configure(link);
if (r < 0)
return r;
- r = sd_netlink_call(link->manager->rtnl, req, 0, &reply);
+ r = dhcp6_configure(link);
if (r < 0)
return r;
- for (addr = reply; addr; addr = sd_netlink_message_next(addr)) {
- unsigned char flags;
- int ifindex;
-
- r = sd_rtnl_message_addr_get_ifindex(addr, &ifindex);
- if (r < 0) {
- log_link_warning_errno(link, r, "rtnl: invalid ifindex, ignoring: %m");
- continue;
- } else if (link->ifindex != ifindex)
- continue;
-
- r = sd_rtnl_message_addr_get_flags(addr, &flags);
- if (r < 0) {
- log_link_warning_errno(link, r, "rtnl: received address message with invalid flags, ignoring: %m");
- continue;
- } else if (!(flags & IFA_F_TENTATIVE))
- continue;
-
- log_link_debug(link, "Found tentative ipv6 link-local address");
- (void) manager_rtnl_process_address(link->manager->rtnl, addr, link->manager);
- }
-
- return 0;
-}
-
-static int link_drop_foreign_config(Link *link) {
- int r;
-
- /* The kernel doesn't notify us about tentative addresses;
- * so if ipv6ll is disabled, we need to enumerate them now so we can drop them below */
- if (!link_ipv6ll_enabled(link)) {
- r = link_enumerate_ipv6_tentative_addresses(link);
- if (r < 0)
- return r;
- }
-
- r = link_drop_foreign_addresses(link);
+ r = ndisc_configure(link);
if (r < 0)
return r;
- r = link_drop_foreign_neighbors(link);
- if (r < 0)
- return r;
-
- return link_drop_foreign_routes(link);
-}
-
-static int link_drop_config(Link *link) {
- int r;
-
- r = link_drop_addresses(link);
- if (r < 0)
- return r;
-
- r = link_drop_neighbors(link);
- if (r < 0)
- return r;
-
- r = link_drop_routes(link);
- if (r < 0)
- return r;
-
- ndisc_flush(link);
-
- return 0;
-}
-
-static int link_configure_traffic_control(Link *link) {
- TrafficControl *tc;
- int r;
-
- link->tc_configured = false;
- link->tc_messages = 0;
-
- ORDERED_HASHMAP_FOREACH(tc, link->network->tc_by_section) {
- r = traffic_control_configure(link, tc);
- if (r < 0)
- return r;
- }
-
- if (link->tc_messages == 0)
- link->tc_configured = true;
- else
- log_link_debug(link, "Configuring traffic control");
-
- return 0;
-}
-
-static int link_configure_sr_iov(Link *link) {
- SRIOV *sr_iov;
- int r;
-
- link->sr_iov_configured = false;
- link->sr_iov_messages = 0;
-
- ORDERED_HASHMAP_FOREACH(sr_iov, link->network->sr_iov_by_section) {
- r = sr_iov_configure(link, sr_iov);
- if (r < 0)
- return r;
- }
-
- if (link->sr_iov_messages == 0)
- link->sr_iov_configured = true;
- else
- log_link_debug(link, "Configuring SR-IOV");
-
- return 0;
-}
-
-static int link_configure(Link *link) {
- int r;
-
- assert(link);
- assert(link->network);
- assert(link->state == LINK_STATE_INITIALIZED);
-
- r = link_configure_traffic_control(link);
- if (r < 0)
- return r;
-
- r = link_configure_sr_iov(link);
- if (r < 0)
- return r;
-
- if (link->iftype == ARPHRD_CAN)
- return link_configure_can(link);
-
- /* If IPv6 configured that is static IPv6 address and IPv6LL autoconfiguration is enabled
- * for this interface, then enable IPv6 */
- (void) link_update_ipv6_sysctl(link);
-
- r = link_set_proxy_arp(link);
- if (r < 0)
- return r;
-
- r = link_set_ipv6_proxy_ndp_addresses(link);
+ r = radv_configure(link);
if (r < 0)
return r;
- r = link_set_ipv4_forward(link);
+ r = link_lldp_rx_configure(link);
if (r < 0)
return r;
- r = link_set_ipv6_forward(link);
- if (r < 0)
- return r;
-
- r = link_set_ipv6_privacy_extensions(link);
- if (r < 0)
- return r;
-
- r = link_set_ipv6_accept_ra(link);
- if (r < 0)
- return r;
-
- r = link_set_ipv6_dad_transmits(link);
- if (r < 0)
- return r;
-
- r = link_set_ipv6_hop_limit(link);
- if (r < 0)
- return r;
-
- r = link_set_ipv4_accept_local(link);
- if (r < 0)
- return r;
-
- r = link_set_flags(link);
- if (r < 0)
- return r;
-
- r = link_set_group(link);
- if (r < 0)
- return r;
-
- if (link_ipv4ll_enabled(link, ADDRESS_FAMILY_IPV4 | ADDRESS_FAMILY_FALLBACK_IPV4)) {
- r = ipv4ll_configure(link);
- if (r < 0)
- return r;
- }
-
- if (link_dhcp4_enabled(link)) {
- r = dhcp4_set_promote_secondaries(link);
- if (r < 0)
- return r;
-
- r = dhcp4_configure(link);
- if (r < 0)
- return r;
- }
-
- if (link_dhcp4_server_enabled(link)) {
- r = sd_dhcp_server_new(&link->dhcp_server, link->ifindex);
- if (r < 0)
- return r;
-
- r = sd_dhcp_server_attach_event(link->dhcp_server, NULL, 0);
- if (r < 0)
- return r;
- }
-
- if (link_dhcp6_enabled(link) ||
- link_ipv6_accept_ra_enabled(link)) {
- r = dhcp6_configure(link);
- if (r < 0)
- return r;
- }
-
- if (link_ipv6_accept_ra_enabled(link)) {
- r = ndisc_configure(link);
- if (r < 0)
- return r;
- }
-
- if (link_radv_enabled(link)) {
- r = radv_configure(link);
- if (r < 0)
- return r;
- }
-
- if (link_lldp_rx_enabled(link)) {
- r = link_lldp_rx_configure(link);
- if (r < 0)
- return r;
- }
-
r = link_configure_mtu(link);
if (r < 0)
return r;
if (r < 0)
return r;
- r = link_configure_ipv4_dad(link);
- if (r < 0)
- return r;
-
return link_configure_continue(link);
}
* we must set this here, after we've set device mtu */
r = link_set_ipv6_mtu(link);
if (r < 0)
- return r;
-
- if (link_has_carrier(link) || link->network->configure_without_carrier) {
- r = link_acquire_conf(link);
- if (r < 0)
- return r;
- }
+ log_link_warning_errno(link, r, "Cannot set IPv6 MTU for interface, ignoring: %m");
return link_enter_join_netdev(link);
}
-static int duid_set_uuid(DUID *duid, sd_id128_t uuid) {
- assert(duid);
-
- if (duid->raw_data_len > 0)
- return 0;
-
- if (duid->type != DUID_TYPE_UUID)
- return -EINVAL;
-
- memcpy(&duid->raw_data, &uuid, sizeof(sd_id128_t));
- duid->raw_data_len = sizeof(sd_id128_t);
-
- return 1;
-}
-
-int get_product_uuid_handler(sd_bus_message *m, void *userdata, sd_bus_error *ret_error) {
- Manager *manager = userdata;
- const sd_bus_error *e;
- const void *a;
- size_t sz;
- DUID *duid;
- Link *link;
- int r;
-
- assert(m);
- assert(manager);
-
- e = sd_bus_message_get_error(m);
- if (e) {
- log_error_errno(sd_bus_error_get_errno(e),
- "Could not get product UUID. Falling back to use machine-app-specific ID as DUID-UUID: %s",
- e->message);
- goto configure;
- }
-
- r = sd_bus_message_read_array(m, 'y', &a, &sz);
- if (r < 0)
- goto configure;
-
- if (sz != sizeof(sd_id128_t)) {
- log_error("Invalid product UUID. Falling back to use machine-app-specific ID as DUID-UUID.");
- goto configure;
- }
-
- memcpy(&manager->product_uuid, a, sz);
- while ((duid = set_steal_first(manager->duids_requesting_uuid)))
- (void) duid_set_uuid(duid, manager->product_uuid);
-
- manager->duids_requesting_uuid = set_free(manager->duids_requesting_uuid);
-
-configure:
- while ((link = set_steal_first(manager->links_requesting_uuid))) {
- link_unref(link);
-
- r = link_configure(link);
- if (r < 0)
- link_enter_failed(link);
- }
-
- manager->links_requesting_uuid = set_free(manager->links_requesting_uuid);
-
- /* To avoid calling GetProductUUID() bus method so frequently, set the flag below
- * even if the method fails. */
- manager->has_product_uuid = true;
-
- return 1;
-}
-
-static bool link_requires_uuid(Link *link) {
- const DUID *duid;
-
- assert(link);
- assert(link->manager);
- assert(link->network);
-
- duid = link_get_duid(link);
- if (duid->type != DUID_TYPE_UUID || duid->raw_data_len != 0)
- return false;
-
- if (link_dhcp4_enabled(link) && IN_SET(link->network->dhcp_client_identifier, DHCP_CLIENT_ID_DUID, DHCP_CLIENT_ID_DUID_ONLY))
- return true;
-
- if (link_dhcp6_enabled(link) || link_ipv6_accept_ra_enabled(link))
- return true;
-
- return false;
-}
-
-static int link_configure_duid(Link *link) {
- Manager *m;
- DUID *duid;
- int r;
-
- assert(link);
- assert(link->manager);
- assert(link->network);
-
- m = link->manager;
- duid = link_get_duid(link);
-
- if (!link_requires_uuid(link))
- return 1;
-
- if (m->has_product_uuid) {
- (void) duid_set_uuid(duid, m->product_uuid);
- return 1;
- }
-
- if (!m->links_requesting_uuid) {
- r = manager_request_product_uuid(m, link);
- if (r < 0) {
- if (r == -ENOMEM)
- return r;
-
- log_link_warning_errno(link, r,
- "Failed to get product UUID. Falling back to use machine-app-specific ID as DUID-UUID: %m");
- return 1;
- }
- } else {
- r = set_put(m->links_requesting_uuid, link);
- if (r < 0)
- return log_oom();
- if (r > 0)
- link_ref(link);
-
- r = set_put(m->duids_requesting_uuid, duid);
- if (r < 0)
- return log_oom();
- }
-
- return 0;
-}
-
static int link_reconfigure_internal(Link *link, sd_netlink_message *m, bool force) {
Network *network;
int r;
log_link_info(link, "Re-configuring with %s", network->filename);
/* Dropping old .network file */
- r = link_stop_clients(link, false);
+ r = link_stop_engines(link, false);
if (r < 0)
return r;
- if (link_dhcp4_server_enabled(link))
- (void) sd_dhcp_server_stop(link->dhcp_server);
-
r = link_drop_config(link);
if (r < 0)
return r;
*routes = NULL,
*dhcp4_address = NULL,
*ipv4ll_address = NULL;
- union in_addr_union address;
int r;
assert(link);
if (r < 0)
log_link_warning_errno(link, r, "Failed to load routes from %s, ignoring: %m", link->state_file);
- if (dhcp4_address) {
- r = in_addr_from_string(AF_INET, dhcp4_address, &address);
- if (r < 0) {
- log_link_debug_errno(link, r, "Failed to parse DHCPv4 address %s: %m", dhcp4_address);
- goto dhcp4_address_fail;
- }
-
- r = sd_dhcp_client_new(&link->dhcp_client, link->network ? link->network->dhcp_anonymize : 0);
- if (r < 0)
- return log_link_error_errno(link, r, "Failed to create DHCPv4 client: %m");
-
- r = sd_dhcp_client_attach_event(link->dhcp_client, NULL, 0);
- if (r < 0)
- return log_link_error_errno(link, r, "Failed to attach DHCPv4 event: %m");
-
- r = sd_dhcp_client_set_request_address(link->dhcp_client, &address.in);
- if (r < 0)
- return log_link_error_errno(link, r, "Failed to set initial DHCPv4 address %s: %m", dhcp4_address);
- }
-
-dhcp4_address_fail:
-
- if (ipv4ll_address) {
- r = in_addr_from_string(AF_INET, ipv4ll_address, &address);
- if (r < 0) {
- log_link_debug_errno(link, r, "Failed to parse IPv4LL address %s: %m", ipv4ll_address);
- goto ipv4ll_address_fail;
- }
-
- r = sd_ipv4ll_new(&link->ipv4ll);
- if (r < 0)
- return log_link_error_errno(link, r, "Failed to create IPv4LL client: %m");
-
- r = sd_ipv4ll_attach_event(link->ipv4ll, NULL, 0);
- if (r < 0)
- return log_link_error_errno(link, r, "Failed to attach IPv4LL event: %m");
-
- r = sd_ipv4ll_set_address(link->ipv4ll, &address.in);
- if (r < 0)
- return log_link_error_errno(link, r, "Failed to set initial IPv4LL address %s: %m", ipv4ll_address);
- }
+ r = link_deserialize_dhcp4(link, dhcp4_address);
+ if (r < 0)
+ log_link_warning_errno(link, r, "Failed to load DHCPv4 address from %s, ignoring: %m", link->state_file);
-ipv4ll_address_fail:
+ r = link_deserialize_ipv4ll(link, ipv4ll_address);
+ if (r < 0)
+ log_link_warning_errno(link, r, "Failed to load IPv4LL address from %s, ignoring: %m", link->state_file);
return 0;
}
if (link->setting_mtu)
return 0;
- r = link_stop_clients(link, false);
+ r = link_stop_engines(link, false);
if (r < 0) {
link_enter_failed(link);
return r;
}
- if (link_dhcp4_server_enabled(link))
- (void) sd_dhcp_server_stop(link->dhcp_server);
-
r = link_drop_config(link);
if (r < 0)
return r;
mac.ether_addr_octet[4],
mac.ether_addr_octet[5]);
- if (link->ipv4ll) {
- bool restart = sd_ipv4ll_is_running(link->ipv4ll) > 0;
-
- if (restart) {
- r = sd_ipv4ll_stop(link->ipv4ll);
- if (r < 0)
- return log_link_warning_errno(link, r, "Could not stop IPv4LL client: %m");
- }
-
- r = sd_ipv4ll_set_mac(link->ipv4ll, &link->mac);
- if (r < 0)
- return log_link_warning_errno(link, r, "Could not update MAC address in IPv4LL client: %m");
-
- if (restart) {
- r = sd_ipv4ll_start(link->ipv4ll);
- if (r < 0)
- return log_link_warning_errno(link, r, "Could not restart IPv4LL client: %m");
- }
- }
-
- if (link->dhcp_client) {
- r = sd_dhcp_client_set_mac(link->dhcp_client,
- (const uint8_t *) &link->mac,
- sizeof (link->mac),
- ARPHRD_ETHER);
- if (r < 0)
- return log_link_warning_errno(link, r, "Could not update MAC address in DHCP client: %m");
-
- r = dhcp4_set_client_identifier(link);
- if (r < 0)
- return log_link_warning_errno(link, r, "Could not set DHCP client identifier: %m");
- }
-
- if (link->dhcp6_client) {
- const DUID* duid = link_get_duid(link);
- bool restart = sd_dhcp6_client_is_running(link->dhcp6_client) > 0;
-
- if (restart) {
- r = sd_dhcp6_client_stop(link->dhcp6_client);
- if (r < 0)
- return log_link_warning_errno(link, r, "Could not stop DHCPv6 client: %m");
- }
-
- r = sd_dhcp6_client_set_mac(link->dhcp6_client,
- (const uint8_t *) &link->mac,
- sizeof (link->mac),
- ARPHRD_ETHER);
- if (r < 0)
- return log_link_warning_errno(link, r, "Could not update MAC address in DHCPv6 client: %m");
-
- if (link->network->iaid_set) {
- r = sd_dhcp6_client_set_iaid(link->dhcp6_client, link->network->iaid);
- if (r < 0)
- return log_link_warning_errno(link, r, "Could not update DHCPv6 IAID: %m");
- }
-
- r = sd_dhcp6_client_set_duid(link->dhcp6_client,
- duid->type,
- duid->raw_data_len > 0 ? duid->raw_data : NULL,
- duid->raw_data_len);
- if (r < 0)
- return log_link_warning_errno(link, r, "Could not update DHCPv6 DUID: %m");
-
- if (restart) {
- r = sd_dhcp6_client_start(link->dhcp6_client);
- if (r < 0)
- return log_link_warning_errno(link, r, "Could not restart DHCPv6 client: %m");
- }
- }
-
- if (link->radv) {
- bool restart = sd_radv_is_running(link->radv);
+ r = ipv4ll_update_mac(link);
+ if (r < 0)
+ return log_link_warning_errno(link, r, "Could not update MAC address in IPv4LL client: %m");
- if (restart) {
- r = sd_radv_stop(link->radv);
- if (r < 0)
- return log_link_warning_errno(link, r, "Could not stop Router Advertisement: %m");
- }
+ r = dhcp4_update_mac(link);
+ if (r < 0)
+ return log_link_warning_errno(link, r, "Could not update MAC address in DHCP client: %m");
- r = sd_radv_set_mac(link->radv, &link->mac);
- if (r < 0)
- return log_link_warning_errno(link, r, "Could not update MAC for Router Advertisement: %m");
+ r = dhcp6_update_mac(link);
+ if (r < 0)
+ return log_link_warning_errno(link, r, "Could not update MAC address in DHCPv6 client: %m");
- if (restart) {
- r = sd_radv_start(link->radv);
- if (r < 0)
- return log_link_warning_errno(link, r, "Could not restart Router Advertisement: %m");
- }
- }
+ r = dhcp6_update_mac(link);
+ if (r < 0)
+ return log_link_warning_errno(link, r, "Could not update MAC address for Router Advertisement: %m");
if (link->ndisc) {
r = sd_ndisc_set_mac(link->ndisc, &link->mac);
if (r < 0)
return log_link_warning_errno(link, r, "Could not update MAC for NDisc: %m");
}
+
+ r = ipv4_dad_update_mac(link);
+ if (r < 0)
+ return log_link_warning_errno(link, r, "Could not update MAC address in IPv4 ACD client: %m");
}
old_master = link->master_ifindex;
} else
(void) unlink(link->lease_file);
- if (link->ipv4ll) {
- struct in_addr address;
-
- r = sd_ipv4ll_get_address(link->ipv4ll, &address);
- if (r >= 0) {
- fputs("IPV4LL_ADDRESS=", f);
- serialize_in_addrs(f, &address, 1, false, NULL);
- fputc('\n', f);
- }
- }
-
- if (link->dhcp6_client) {
- _cleanup_free_ char *duid = NULL;
- uint32_t iaid;
-
- r = sd_dhcp6_client_get_iaid(link->dhcp6_client, &iaid);
- if (r >= 0)
- fprintf(f, "DHCP6_CLIENT_IAID=0x%x\n", iaid);
+ r = link_serialize_ipv4ll(link, f);
+ if (r < 0)
+ goto fail;
- r = sd_dhcp6_client_duid_as_string(link->dhcp6_client, &duid);
- if (r >= 0)
- fprintf(f, "DHCP6_CLIENT_DUID=%s\n", duid);
- }
+ r = link_serialize_dhcp6_client(link, f);
+ if (r < 0)
+ goto fail;
r = fflush_and_check(f);
if (r < 0)
projects / thirdparty / systemd.git / blobdiff