#include "bus-util.h"
#include "dhcp-identifier.h"
#include "dhcp-lease-internal.h"
+#include "env-file.h"
#include "fd-util.h"
#include "fileio.h"
+#include "missing_network.h"
#include "netlink-util.h"
#include "network-internal.h"
#include "networkd-ipv6-proxy-ndp.h"
#include "networkd-lldp-tx.h"
#include "networkd-manager.h"
#include "networkd-ndisc.h"
+#include "networkd-neighbor.h"
#include "networkd-radv.h"
#include "networkd-routing-policy-rule.h"
#include "set.h"
#include "stdio-util.h"
#include "string-table.h"
#include "strv.h"
+#include "tmpfile-util.h"
#include "util.h"
#include "virt.h"
p = strjoina("/proc/sys/net/ipv6/conf/", link->ifname, "/disable_ipv6");
- r = write_string_file(p, one_zero(disabled), WRITE_STRING_FILE_VERIFY_ON_FAILURE);
+ r = write_string_file(p, one_zero(disabled), WRITE_STRING_FILE_VERIFY_ON_FAILURE | WRITE_STRING_FILE_DISABLE_BUFFER);
if (r < 0)
log_link_warning_errno(link, r, "Cannot %s IPv6 for interface %s: %m",
enable_disable(!disabled), link->ifname);
if (r < 0)
return r;
- link = new0(Link, 1);
+ link = new(Link, 1);
if (!link)
return -ENOMEM;
- link->n_ref = 1;
- link->manager = manager;
- link->state = LINK_STATE_PENDING;
- link->rtnl_extended_attrs = true;
- link->ifindex = ifindex;
- link->iftype = iftype;
+ *link = (Link) {
+ .n_ref = 1,
+ .manager = manager,
+ .state = LINK_STATE_PENDING,
+ .rtnl_extended_attrs = true,
+ .ifindex = ifindex,
+ .iftype = iftype,
+ };
+
link->ifname = strdup(ifname);
if (!link->ifname)
return -ENOMEM;
return 0;
}
+static void link_detach_from_manager(Link *link) {
+ if (!link || !link->manager)
+ return;
+
+ hashmap_remove(link->manager->links, INT_TO_PTR(link->ifindex));
+ set_remove(link->manager->links_requesting_uuid, link);
+ link_clean(link);
+
+ link->manager = NULL;
+}
+
static Link *link_free(Link *link) {
Address *address;
Link *carrier;
sd_ndisc_unref(link->ndisc);
sd_radv_unref(link->radv);
- if (link->manager) {
- hashmap_remove(link->manager->links, INT_TO_PTR(link->ifindex));
- set_remove(link->manager->links_requesting_uuid, link);
- link_clean(link);
- }
+ link_detach_from_manager(link);
free(link->ifname);
DEFINE_TRIVIAL_REF_UNREF_FUNC(Link, link, link_free);
-void link_netlink_destroy_callback(void *userdata) {
- Link *link = userdata;
-
- assert(userdata);
-
- link_unref(link);
-}
-
int link_get(Manager *m, int ifindex, Link **ret) {
Link *link;
assert(link);
assert(link->network);
- if (link->state != LINK_STATE_SETTING_ROUTES)
+ if (link->state != LINK_STATE_CONFIGURING)
return;
log_link_info(link, "Configured");
link_dirty(link);
}
-void link_check_ready(Link *link) {
- Address *a;
- Iterator i;
-
- assert(link);
-
- if (IN_SET(link->state, LINK_STATE_FAILED, LINK_STATE_LINGER))
- return;
-
- if (!link->network)
- return;
-
- if (!link->static_routes_configured)
- return;
-
- if (!link->routing_policy_rules_configured)
- return;
-
- if (link_ipv4ll_enabled(link))
- if (!link->ipv4ll_address ||
- !link->ipv4ll_route)
- return;
-
- if (!link->network->bridge) {
-
- if (link_ipv6ll_enabled(link))
- if (in_addr_is_null(AF_INET6, (const union in_addr_union*) &link->ipv6ll_address) > 0)
- return;
-
- if ((link_dhcp4_enabled(link) && !link_dhcp6_enabled(link) &&
- !link->dhcp4_configured) ||
- (link_dhcp6_enabled(link) && !link_dhcp4_enabled(link) &&
- !link->dhcp6_configured) ||
- (link_dhcp4_enabled(link) && link_dhcp6_enabled(link) &&
- !link->dhcp4_configured && !link->dhcp6_configured))
- return;
-
- if (link_ipv6_accept_ra_enabled(link) && !link->ndisc_configured)
- return;
- }
-
- SET_FOREACH(a, link->addresses, i)
- if (!address_is_ready(a))
- return;
-
- if (link->state != LINK_STATE_CONFIGURED)
- link_enter_configured(link);
-
- return;
-}
-
-static int link_set_routing_policy_rule(Link *link) {
+static int link_request_set_routing_policy_rule(Link *link) {
RoutingPolicyRule *rule, *rrule = NULL;
int r;
assert(link);
assert(link->network);
+ link_set_state(link, LINK_STATE_CONFIGURING);
+ link->routing_policy_rules_configured = false;
+
LIST_FOREACH(rules, rule, link->network->rules) {
r = routing_policy_rule_get(link->manager, rule->family, &rule->from, rule->from_prefixlen, &rule->to,
- rule->to_prefixlen, rule->tos, rule->fwmark, rule->table, rule->iif, rule->oif, &rrule);
- if (r == 1) {
+ rule->to_prefixlen, rule->tos, rule->fwmark, rule->table, rule->iif, rule->oif,
+ rule->protocol, &rule->sport, &rule->dport, &rrule);
+ if (r == 0) {
(void) routing_policy_rule_make_local(link->manager, rrule);
continue;
}
- r = routing_policy_rule_configure(rule, link, link_routing_policy_rule_handler, false);
+ r = routing_policy_rule_configure(rule, link, NULL, false);
if (r < 0) {
log_link_warning_errno(link, r, "Could not set routing policy rules: %m");
link_enter_failed(link);
return 0;
}
-static int route_handler(sd_netlink *rtnl, sd_netlink_message *m, void *userdata) {
- Link *link = userdata;
+static int route_handler(sd_netlink *rtnl, sd_netlink_message *m, Link *link) {
int r;
assert(link);
assert(link->route_messages > 0);
- assert(IN_SET(link->state, LINK_STATE_SETTING_ADDRESSES,
- LINK_STATE_SETTING_ROUTES, LINK_STATE_FAILED,
- LINK_STATE_LINGER));
+ assert(IN_SET(link->state, LINK_STATE_CONFIGURING,
+ LINK_STATE_FAILED, LINK_STATE_LINGER));
link->route_messages--;
return 1;
}
-static int link_enter_set_routes(Link *link) {
+static int link_request_set_routes(Link *link) {
+ enum {
+ PHASE_NON_GATEWAY, /* First phase: Routes without a gateway */
+ PHASE_GATEWAY, /* Second phase: Routes with a gateway */
+ _PHASE_MAX
+ } phase;
Route *rt;
int r;
assert(link);
assert(link->network);
- assert(link->state == LINK_STATE_SETTING_ADDRESSES);
+ assert(link->addresses_configured);
+ assert(link->address_messages == 0);
+ assert(link->state != _LINK_STATE_INVALID);
- (void) link_set_routing_policy_rule(link);
+ link_set_state(link, LINK_STATE_CONFIGURING);
+ link->static_routes_configured = false;
- link_set_state(link, LINK_STATE_SETTING_ROUTES);
+ r = link_request_set_routing_policy_rule(link);
+ if (r < 0)
+ return r;
- LIST_FOREACH(routes, rt, link->network->static_routes) {
- r = route_configure(rt, link, route_handler);
- if (r < 0) {
- log_link_warning_errno(link, r, "Could not set routes: %m");
- link_enter_failed(link);
- return r;
- }
+ /* First add the routes that enable us to talk to gateways, then add in the others that need a gateway. */
+ for (phase = 0; phase < _PHASE_MAX; phase++)
+ LIST_FOREACH(routes, rt, link->network->static_routes) {
- link->route_messages++;
- }
+ if (in_addr_is_null(rt->family, &rt->gw) != (phase == PHASE_NON_GATEWAY))
+ continue;
+
+ r = route_configure(rt, link, route_handler);
+ if (r < 0) {
+ log_link_warning_errno(link, r, "Could not set routes: %m");
+ link_enter_failed(link);
+ return r;
+ }
+
+ link->route_messages++;
+ }
if (link->route_messages == 0) {
link->static_routes_configured = true;
return 0;
}
-int link_route_remove_handler(sd_netlink *rtnl, sd_netlink_message *m, void *userdata) {
- Link *link = userdata;
- int r;
+void link_check_ready(Link *link) {
+ Address *a;
+ Iterator i;
- assert(m);
assert(link);
- assert(link->ifname);
if (IN_SET(link->state, LINK_STATE_FAILED, LINK_STATE_LINGER))
- return 1;
+ return;
- r = sd_netlink_message_get_errno(m);
- if (r < 0 && r != -ESRCH)
- log_link_warning_errno(link, r, "Could not drop route: %m");
+ if (!link->network)
+ return;
- return 1;
+ if (!link->addresses_configured)
+ return;
+
+ if (!link->neighbors_configured)
+ return;
+
+ if (!link->static_routes_configured)
+ return;
+
+ if (!link->routing_policy_rules_configured)
+ return;
+
+ if (link_ipv4ll_enabled(link))
+ if (!link->ipv4ll_address ||
+ !link->ipv4ll_route)
+ return;
+
+ if (!link->network->bridge) {
+
+ if (link_ipv6ll_enabled(link))
+ if (in_addr_is_null(AF_INET6, (const union in_addr_union*) &link->ipv6ll_address) > 0)
+ return;
+
+ if ((link_dhcp4_enabled(link) && !link_dhcp6_enabled(link) &&
+ !link->dhcp4_configured) ||
+ (link_dhcp6_enabled(link) && !link_dhcp4_enabled(link) &&
+ !link->dhcp6_configured) ||
+ (link_dhcp4_enabled(link) && link_dhcp6_enabled(link) &&
+ !link->dhcp4_configured && !link->dhcp6_configured))
+ return;
+
+ if (link_ipv6_accept_ra_enabled(link) && !link->ndisc_configured)
+ return;
+ }
+
+ SET_FOREACH(a, link->addresses, i)
+ if (!address_is_ready(a))
+ return;
+
+ if (link->state != LINK_STATE_CONFIGURED)
+ link_enter_configured(link);
+
+ return;
}
-static int address_handler(sd_netlink *rtnl, sd_netlink_message *m, void *userdata) {
- Link *link = userdata;
+static int link_request_set_neighbors(Link *link) {
+ Neighbor *neighbor;
int r;
- assert(rtnl);
- assert(m);
assert(link);
- assert(link->ifname);
- assert(link->address_messages > 0);
- assert(IN_SET(link->state, LINK_STATE_SETTING_ADDRESSES,
- LINK_STATE_FAILED, LINK_STATE_LINGER));
-
- link->address_messages--;
-
- if (IN_SET(link->state, LINK_STATE_FAILED, LINK_STATE_LINGER))
- return 1;
+ assert(link->network);
+ assert(link->state != _LINK_STATE_INVALID);
- r = sd_netlink_message_get_errno(m);
- if (r < 0 && r != -EEXIST)
- log_link_warning_errno(link, r, "could not set address: %m");
- else if (r >= 0)
- manager_rtnl_process_address(rtnl, m, link->manager);
+ link_set_state(link, LINK_STATE_CONFIGURING);
+ link->neighbors_configured = false;
- if (link->address_messages == 0) {
- log_link_debug(link, "Addresses set");
- link_enter_set_routes(link);
+ LIST_FOREACH(neighbors, neighbor, link->network->neighbors) {
+ r = neighbor_configure(neighbor, link, NULL);
+ if (r < 0) {
+ log_link_warning_errno(link, r, "Could not set neighbor: %m");
+ link_enter_failed(link);
+ return r;
+ }
}
- return 1;
+ if (link->neighbor_messages == 0) {
+ link->neighbors_configured = true;
+ link_check_ready(link);
+ } else
+ log_link_debug(link, "Setting neighbors");
+
+ return 0;
}
-static int address_label_handler(sd_netlink *rtnl, sd_netlink_message *m, void *userdata) {
- Link *link = userdata;
+static int address_handler(sd_netlink *rtnl, sd_netlink_message *m, Link *link) {
int r;
assert(rtnl);
assert(m);
assert(link);
assert(link->ifname);
- assert(link->address_label_messages > 0);
+ assert(link->address_messages > 0);
+ assert(IN_SET(link->state, LINK_STATE_CONFIGURING,
+ LINK_STATE_FAILED, LINK_STATE_LINGER));
- link->address_label_messages--;
+ link->address_messages--;
if (IN_SET(link->state, LINK_STATE_FAILED, LINK_STATE_LINGER))
return 1;
r = sd_netlink_message_get_errno(m);
if (r < 0 && r != -EEXIST)
- log_link_warning_errno(link, r, "could not set address label: %m");
+ log_link_warning_errno(link, r, "could not set address: %m");
else if (r >= 0)
manager_rtnl_process_address(rtnl, m, link->manager);
- if (link->address_label_messages == 0)
- log_link_debug(link, "Addresses label set");
+ if (link->address_messages == 0) {
+ log_link_debug(link, "Addresses set");
+ link->addresses_configured = true;
+ link_request_set_routes(link);
+ }
return 1;
}
return 0;
}
-static int link_enter_set_addresses(Link *link) {
+static int link_request_set_addresses(Link *link) {
AddressLabel *label;
Address *ad;
int r;
assert(link->network);
assert(link->state != _LINK_STATE_INVALID);
+ link_set_state(link, LINK_STATE_CONFIGURING);
+
+ /* Reset all *_configured flags we are configuring. */
+ link->addresses_configured = false;
+ link->neighbors_configured = false;
+ link->static_routes_configured = false;
+ link->routing_policy_rules_configured = false;
+
r = link_set_bridge_fdb(link);
if (r < 0)
return r;
- link_set_state(link, LINK_STATE_SETTING_ADDRESSES);
+ r = link_request_set_neighbors(link);
+ if (r < 0)
+ return r;
LIST_FOREACH(addresses, ad, link->network->static_addresses) {
r = address_configure(ad, link, address_handler, false);
}
LIST_FOREACH(labels, label, link->network->address_labels) {
- r = address_label_configure(label, link, address_label_handler, false);
+ r = address_label_configure(label, link, NULL, false);
if (r < 0) {
log_link_warning_errno(link, r, "Could not set address label: %m");
link_enter_failed(link);
return r;
}
}
+ if (!sd_dhcp_server_is_running(link->dhcp_server)) {
+ r = sd_dhcp_server_start(link->dhcp_server);
+ if (r < 0) {
+ log_link_warning_errno(link, r, "Could not start DHCPv4 server instance: %m");
- r = sd_dhcp_server_start(link->dhcp_server);
- if (r < 0) {
- log_link_warning_errno(link, r, "Could not start DHCPv4 server instance: %m");
-
- link_enter_failed(link);
+ link_enter_failed(link);
- return 0;
+ return 0;
+ }
}
log_link_debug(link, "Offering DHCPv4 leases");
}
- if (link->address_messages == 0)
- link_enter_set_routes(link);
- else
+ if (link->address_messages == 0) {
+ link->addresses_configured = true;
+ link_request_set_routes(link);
+ } else
log_link_debug(link, "Setting addresses");
return 0;
}
-int link_address_remove_handler(sd_netlink *rtnl, sd_netlink_message *m, void *userdata) {
- Link *link = userdata;
- int r;
-
- assert(m);
- assert(link);
- assert(link->ifname);
-
- if (IN_SET(link->state, LINK_STATE_FAILED, LINK_STATE_LINGER))
- return 1;
-
- r = sd_netlink_message_get_errno(m);
- if (r < 0 && r != -EADDRNOTAVAIL)
- log_link_warning_errno(link, r, "Could not drop address: %m");
-
- return 1;
-}
-
static int link_set_bridge_vlan(Link *link) {
int r = 0;
p = strjoina("/proc/sys/net/ipv4/conf/", link->ifname, "/proxy_arp");
- r = write_string_file(p, one_zero(link->network->proxy_arp), WRITE_STRING_FILE_VERIFY_ON_FAILURE);
+ r = write_string_file(p, one_zero(link->network->proxy_arp), WRITE_STRING_FILE_VERIFY_ON_FAILURE | WRITE_STRING_FILE_DISABLE_BUFFER);
if (r < 0)
log_link_warning_errno(link, r, "Cannot configure proxy ARP for interface: %m");
return 0;
}
-static int link_set_handler(sd_netlink *rtnl, sd_netlink_message *m, void *userdata) {
- Link *link = userdata;
+static int link_set_handler(sd_netlink *rtnl, sd_netlink_message *m, Link *link) {
int r;
assert(link);
static int link_configure_after_setting_mtu(Link *link);
-static int set_mtu_handler(sd_netlink *rtnl, sd_netlink_message *m, void *userdata) {
- Link *link = userdata;
+static int set_mtu_handler(sd_netlink *rtnl, sd_netlink_message *m, Link *link) {
int r;
assert(m);
if (r < 0)
return log_link_error_errno(link, r, "Could not append MTU: %m");
- r = sd_netlink_call_async(link->manager->rtnl, NULL, req, set_mtu_handler,
- link_netlink_destroy_callback, link, 0, __func__);
+ r = netlink_call_async(link->manager->rtnl, NULL, req, set_mtu_handler,
+ link_netlink_destroy_callback, link);
if (r < 0)
return log_link_error_errno(link, r, "Could not send rtnetlink message: %m");
return 0;
}
-static int set_flags_handler(sd_netlink *rtnl, sd_netlink_message *m, void *userdata) {
- Link *link = userdata;
+static int set_flags_handler(sd_netlink *rtnl, sd_netlink_message *m, Link *link) {
int r;
assert(m);
if (r < 0)
return log_link_error_errno(link, r, "Could not set link flags: %m");
- r = sd_netlink_call_async(link->manager->rtnl, NULL, req, set_flags_handler,
- link_netlink_destroy_callback, link, 0, __func__);
+ r = netlink_call_async(link->manager->rtnl, NULL, req, set_flags_handler,
+ link_netlink_destroy_callback, link);
if (r < 0)
return log_link_error_errno(link, r, "Could not send rtnetlink message: %m");
r = sd_netlink_message_append_u8(req, IFLA_BRPORT_UNICAST_FLOOD, link->network->unicast_flood);
if (r < 0)
return log_link_error_errno(link, r, "Could not append IFLA_BRPORT_UNICAST_FLOOD attribute: %m");
+ }
+ if (link->network->multicast_to_unicast >= 0) {
+ r = sd_netlink_message_append_u8(req, IFLA_BRPORT_MCAST_TO_UCAST, link->network->multicast_to_unicast);
+ if (r < 0)
+ return log_link_error_errno(link, r, "Could not append IFLA_BRPORT_MCAST_TO_UCAST attribute: %m");
}
if (link->network->cost != 0) {
if (r < 0)
return log_link_error_errno(link, r, "Could not append IFLA_BRPORT_COST attribute: %m");
}
+
if (link->network->priority != LINK_BRIDGE_PORT_PRIORITY_INVALID) {
r = sd_netlink_message_append_u16(req, IFLA_BRPORT_PRIORITY, link->network->priority);
if (r < 0)
if (r < 0)
return log_link_error_errno(link, r, "Could not append IFLA_LINKINFO attribute: %m");
- r = sd_netlink_call_async(link->manager->rtnl, NULL, req, link_set_handler,
- link_netlink_destroy_callback, link, 0, __func__);
+ r = netlink_call_async(link->manager->rtnl, NULL, req, link_set_handler,
+ link_netlink_destroy_callback, link);
if (r < 0)
return log_link_error_errno(link, r, "Could not send rtnetlink message: %m");
if (r < 0)
return log_link_error_errno(link, r, "Could not append IFLA_INFO_DATA attribute: %m");
- r = sd_netlink_call_async(link->manager->rtnl, NULL, req, set_flags_handler,
- link_netlink_destroy_callback, link, 0, __func__);
+ r = netlink_call_async(link->manager->rtnl, NULL, req, set_flags_handler,
+ link_netlink_destroy_callback, link);
if (r < 0)
return log_link_error_errno(link, r, "Could not send rtnetlink message: %m");
return false;
}
-static int link_up_handler(sd_netlink *rtnl, sd_netlink_message *m, void *userdata) {
- Link *link = userdata;
+static int link_up_handler(sd_netlink *rtnl, sd_netlink_message *m, Link *link) {
int r;
assert(link);
if (r < 0)
return log_link_error_errno(link, r, "Could not close IFLA_AF_SPEC container: %m");
- r = sd_netlink_call_async(link->manager->rtnl, NULL, req, link_up_handler,
- link_netlink_destroy_callback, link, 0, __func__);
+ r = netlink_call_async(link->manager->rtnl, NULL, req, link_up_handler,
+ link_netlink_destroy_callback, link);
if (r < 0)
return log_link_error_errno(link, r, "Could not send rtnetlink message: %m");
if (r < 0)
return log_link_error_errno(link, r, "Could not set link flags: %m");
- r = sd_netlink_call_async(link->manager->rtnl, NULL, req, link_up_handler,
- link_netlink_destroy_callback, link, 0, __func__);
+ r = netlink_call_async(link->manager->rtnl, NULL, req, link_up_handler,
+ link_netlink_destroy_callback, link);
if (r < 0)
return log_link_error_errno(link, r, "Could not send rtnetlink message: %m");
if (r < 0)
return log_link_error_errno(link, r, "Failed to close netlink container: %m");
- r = sd_netlink_call_async(link->manager->rtnl, NULL, m, link_set_handler,
- link_netlink_destroy_callback, link, 0, __func__);
+ r = netlink_call_async(link->manager->rtnl, NULL, m, link_set_handler,
+ link_netlink_destroy_callback, link);
if (r < 0)
return log_link_error_errno(link, r, "Could not send rtnetlink message: %m");
return r;
}
-static int link_down_handler(sd_netlink *rtnl, sd_netlink_message *m, void *userdata) {
- Link *link = userdata;
+static int link_down_handler(sd_netlink *rtnl, sd_netlink_message *m, Link *link) {
int r;
assert(link);
if (r < 0)
return log_link_error_errno(link, r, "Could not set link flags: %m");
- r = sd_netlink_call_async(link->manager->rtnl, NULL, req, link_down_handler,
- link_netlink_destroy_callback, link, 0, __func__);
+ r = netlink_call_async(link->manager->rtnl, NULL, req, link_down_handler,
+ link_netlink_destroy_callback, link);
if (r < 0)
return log_link_error_errno(link, r, "Could not send rtnetlink message: %m");
log_link_debug(link, "Link removed");
(void) unlink(link->state_file);
+
+ link_detach_from_manager(link);
+
link_unref(link);
return;
if (!link_has_carrier(link) && !link->network->configure_without_carrier)
return 0;
- return link_enter_set_addresses(link);
+ return link_request_set_addresses(link);
}
-static int netdev_join_handler(sd_netlink *rtnl, sd_netlink_message *m, void *userdata) {
- Link *link = userdata;
+static int netdev_join_handler(sd_netlink *rtnl, sd_netlink_message *m, Link *link) {
int r;
assert(link);
assert(link->network);
assert(link->state == LINK_STATE_PENDING);
- link_set_state(link, LINK_STATE_ENSLAVING);
+ link_set_state(link, LINK_STATE_CONFIGURING);
link_dirty(link);
* primarily to keep IPv4 and IPv6 packet forwarding behaviour
* somewhat in sync (see below). */
- r = write_string_file("/proc/sys/net/ipv4/ip_forward", "1", WRITE_STRING_FILE_VERIFY_ON_FAILURE);
+ r = write_string_file("/proc/sys/net/ipv4/ip_forward", "1", WRITE_STRING_FILE_VERIFY_ON_FAILURE | WRITE_STRING_FILE_DISABLE_BUFFER);
if (r < 0)
log_link_warning_errno(link, r, "Cannot turn on IPv4 packet forwarding, ignoring: %m");
* same behaviour there and also propagate the setting from
* one to all, to keep things simple (see above). */
- r = write_string_file("/proc/sys/net/ipv6/conf/all/forwarding", "1", WRITE_STRING_FILE_VERIFY_ON_FAILURE);
+ r = write_string_file("/proc/sys/net/ipv6/conf/all/forwarding", "1", WRITE_STRING_FILE_VERIFY_ON_FAILURE | WRITE_STRING_FILE_DISABLE_BUFFER);
if (r < 0)
log_link_warning_errno(link, r, "Cannot configure IPv6 packet forwarding, ignoring: %m");
p = strjoina("/proc/sys/net/ipv6/conf/", link->ifname, "/use_tempaddr");
xsprintf(buf, "%u", (unsigned) link->network->ipv6_privacy_extensions);
- r = write_string_file(p, buf, WRITE_STRING_FILE_VERIFY_ON_FAILURE);
+ r = write_string_file(p, buf, WRITE_STRING_FILE_VERIFY_ON_FAILURE | WRITE_STRING_FILE_DISABLE_BUFFER);
if (r < 0)
log_link_warning_errno(link, r, "Cannot configure IPv6 privacy extension for interface: %m");
p = strjoina("/proc/sys/net/ipv6/conf/", link->ifname, "/accept_ra");
/* We handle router advertisements ourselves, tell the kernel to GTFO */
- r = write_string_file(p, "0", WRITE_STRING_FILE_VERIFY_ON_FAILURE);
+ r = write_string_file(p, "0", WRITE_STRING_FILE_VERIFY_ON_FAILURE | WRITE_STRING_FILE_DISABLE_BUFFER);
if (r < 0)
log_link_warning_errno(link, r, "Cannot disable kernel IPv6 accept_ra for interface: %m");
p = strjoina("/proc/sys/net/ipv6/conf/", link->ifname, "/dad_transmits");
xsprintf(buf, "%i", link->network->ipv6_dad_transmits);
- r = write_string_file(p, buf, WRITE_STRING_FILE_VERIFY_ON_FAILURE);
+ r = write_string_file(p, buf, WRITE_STRING_FILE_VERIFY_ON_FAILURE | WRITE_STRING_FILE_DISABLE_BUFFER);
if (r < 0)
log_link_warning_errno(link, r, "Cannot set IPv6 dad transmits for interface: %m");
p = strjoina("/proc/sys/net/ipv6/conf/", link->ifname, "/hop_limit");
xsprintf(buf, "%i", link->network->ipv6_hop_limit);
- r = write_string_file(p, buf, WRITE_STRING_FILE_VERIFY_ON_FAILURE);
+ r = write_string_file(p, buf, WRITE_STRING_FILE_VERIFY_ON_FAILURE | WRITE_STRING_FILE_DISABLE_BUFFER);
if (r < 0)
log_link_warning_errno(link, r, "Cannot set IPv6 hop limit for interface: %m");
xsprintf(buf, "%" PRIu32, link->network->ipv6_mtu);
- r = write_string_file(p, buf, 0);
+ r = write_string_file(p, buf, WRITE_STRING_FILE_DISABLE_BUFFER);
if (r < 0)
log_link_warning_errno(link, r, "Cannot set IPv6 MTU for interface: %m");
return 0;
}
+static bool link_is_static_address_configured(Link *link, Address *address) {
+ Address *net_address;
+
+ assert(link);
+ assert(address);
+
+ if (!link->network)
+ return false;
+
+ LIST_FOREACH(addresses, net_address, link->network->static_addresses)
+ if (address_equal(net_address, address))
+ return true;
+
+ return false;
+}
+
+static bool link_is_static_route_configured(Link *link, Route *route) {
+ Route *net_route;
+
+ assert(link);
+ assert(route);
+
+ if (!link->network)
+ return false;
+
+ LIST_FOREACH(routes, net_route, link->network->static_routes)
+ if (route_equal(net_route, route))
+ return true;
+
+ return false;
+}
+
static int link_drop_foreign_config(Link *link) {
Address *address;
Route *route;
if (address->family == AF_INET6 && in_addr_is_link_local(AF_INET6, &address->in_addr) == 1)
continue;
- r = address_remove(address, link, link_address_remove_handler);
- if (r < 0)
- return r;
+ if (link_is_static_address_configured(link, address)) {
+ r = address_add(link, address->family, &address->in_addr, address->prefixlen, NULL);
+ if (r < 0)
+ return log_link_error_errno(link, r, "Failed to add address: %m");
+ } else {
+ r = address_remove(address, link, NULL);
+ if (r < 0)
+ return r;
+ }
}
SET_FOREACH(route, link->routes_foreign, i) {
if (route->protocol == RTPROT_KERNEL)
continue;
- r = route_remove(route, link, link_route_remove_handler);
- if (r < 0)
- return r;
+ if (link_is_static_route_configured(link, route)) {
+ r = route_add(link, route->family, &route->dst, route->dst_prefixlen, route->tos, route->priority, route->table, NULL);
+ if (r < 0)
+ return r;
+ } else {
+ r = route_remove(route, link, NULL);
+ if (r < 0)
+ return r;
+ }
}
return 0;
if (address->family == AF_INET6 && in_addr_is_link_local(AF_INET6, &address->in_addr) == 1)
continue;
- r = address_remove(address, link, link_address_remove_handler);
+ r = address_remove(address, link, NULL);
if (r < 0)
return r;
if (route->protocol == RTPROT_KERNEL)
continue;
- r = route_remove(route, link, link_route_remove_handler);
+ r = route_remove(route, link, NULL);
if (r < 0)
return r;
}
return 1;
}
-static int link_initialized_handler(sd_netlink *rtnl, sd_netlink_message *m, void *userdata) {
- (void) link_initialized_and_synced(userdata);
+static int link_initialized_handler(sd_netlink *rtnl, sd_netlink_message *m, Link *link) {
+ (void) link_initialized_and_synced(link);
return 1;
}
if (r < 0)
return r;
- r = sd_netlink_call_async(link->manager->rtnl, NULL, req, link_initialized_handler,
- link_netlink_destroy_callback, link, 0, __func__);
+ r = netlink_call_async(link->manager->rtnl, NULL, req, link_initialized_handler,
+ link_netlink_destroy_callback, link);
if (r < 0)
return r;
assert(link);
- r = parse_env_file(NULL, link->state_file, NEWLINE,
+ r = parse_env_file(NULL, link->state_file,
"NETWORK_FILE", &network_file,
"ADDRESSES", &addresses,
"ROUTES", &routes,
"DHCP4_ADDRESS", &dhcp4_address,
- "IPV4LL_ADDRESS", &ipv4ll_address,
- NULL);
+ "IPV4LL_ADDRESS", &ipv4ll_address);
if (r < 0 && r != -ENOENT)
return log_link_error_errno(link, r, "Failed to read %s: %m", link->state_file);
return r;
}
- r = link_enter_set_addresses(link);
+ r = link_request_set_addresses(link);
if (r < 0)
return r;
}
if (link->state == LINK_STATE_LINGER) {
log_link_info(link, "Link readded");
- link_set_state(link, LINK_STATE_ENSLAVING);
+ link_set_state(link, LINK_STATE_CONFIGURING);
r = link_new_carrier_maps(link);
if (r < 0)
if (r < 0)
return log_link_warning_errno(link, r, "Could not update MAC address in DHCPv6 client: %m");
- 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");
+ 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,
resolve_support_to_string(link->network->llmnr));
fprintf(f, "MDNS=%s\n",
resolve_support_to_string(link->network->mdns));
+ if (link->network->dns_default_route >= 0)
+ fprintf(f, "DNS_DEFAULT_ROUTE=%s\n", yes_no(link->network->dns_default_route));
if (link->network->dns_over_tls_mode != _DNS_OVER_TLS_MODE_INVALID)
fprintf(f, "DNS_OVER_TLS=%s\n",
static const char* const link_state_table[_LINK_STATE_MAX] = {
[LINK_STATE_PENDING] = "pending",
- [LINK_STATE_ENSLAVING] = "configuring",
- [LINK_STATE_SETTING_ADDRESSES] = "configuring",
- [LINK_STATE_SETTING_ROUTES] = "configuring",
+ [LINK_STATE_CONFIGURING] = "configuring",
[LINK_STATE_CONFIGURED] = "configured",
[LINK_STATE_UNMANAGED] = "unmanaged",
[LINK_STATE_FAILED] = "failed",
projects / thirdparty / systemd.git / blobdiff