if (!link->ifname)
return -ENOMEM;
- r = asprintf(&link->state_file, "/run/systemd/network/links/%"PRIu64,
+ r = sd_rtnl_message_read_ether_addr(message, IFLA_ADDRESS, &link->mac);
+ if (r < 0)
+ return r;
+
+ r = asprintf(&link->state_file, "/run/systemd/netif/links/%"PRIu64,
link->ifindex);
if (r < 0)
return -ENOMEM;
- r = asprintf(&link->lease_file, "/run/systemd/network/leases/%"PRIu64,
+ r = asprintf(&link->lease_file, "/run/systemd/netif/leases/%"PRIu64,
link->ifindex);
if (r < 0)
return -ENOMEM;
}
static void link_free(Link *link) {
+ Address *address;
+
if (!link)
return;
assert(link->manager);
+ while ((address = link->addresses)) {
+ LIST_REMOVE(addresses, link->addresses, address);
+ address_free(address);
+ }
+
+ while ((address = link->pool_addresses)) {
+ LIST_REMOVE(addresses, link->pool_addresses, address);
+ address_free(address);
+ }
+
sd_dhcp_client_unref(link->dhcp_client);
sd_dhcp_lease_unref(link->dhcp_lease);
return;
}
-static int link_enter_configured(Link *link) {
- assert(link);
- assert(link->state == LINK_STATE_SETTING_ROUTES);
-
- log_info_link(link, "link configured");
-
- link->state = LINK_STATE_CONFIGURED;
-
- link_save(link);
-
- return 0;
-}
-
static void link_enter_unmanaged(Link *link) {
assert(link);
}
}
+ if (link->network->dhcp_server) {
+ assert(link->dhcp_server);
+
+ k = sd_dhcp_server_stop(link->dhcp_server);
+ if (k < 0) {
+ log_warning_link(link, "Could not stop DHCPv4 server: %s", strerror(-r));
+ r = k;
+ }
+ }
+
return r;
}
link_save(link);
}
+static int link_enter_configured(Link *link) {
+ int r;
+
+ assert(link);
+ assert(link->network);
+ assert(link->state == LINK_STATE_SETTING_ROUTES);
+
+
+ if (link->network->dhcp_server) {
+ log_debug_link(link, "offering DHCPv4 leases");
+
+ r = sd_dhcp_server_start(link->dhcp_server);
+ if (r < 0) {
+ log_warning_link(link, "could not start DHCPv4 server "
+ "instance: %s", strerror(-r));
+
+ link_enter_failed(link);
+
+ return 0;
+ }
+ }
+
+ log_info_link(link, "link configured");
+
+ link->state = LINK_STATE_CONFIGURED;
+
+ link_save(link);
+
+ return 0;
+}
+
static int route_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata) {
Link *link = userdata;
int r;
r = sd_rtnl_message_get_errno(m);
if (r < 0 && r != -EEXIST)
log_struct_link(LOG_WARNING, link,
- "MESSAGE=%*s: could not set route: %s",
+ "MESSAGE=%-*s: could not set route: %s",
IFNAMSIZ,
link->ifname, strerror(-r),
"ERRNO=%d", -r,
log_debug_link(link, "setting routes");
- LIST_FOREACH(static_routes, rt, link->network->static_routes) {
+ LIST_FOREACH(routes, rt, link->network->static_routes) {
r = route_configure(rt, link, &route_handler);
if (r < 0) {
log_warning_link(link,
r = sd_rtnl_message_get_errno(m);
if (r < 0 && r != -ESRCH)
log_struct_link(LOG_WARNING, link,
- "MESSAGE=%*s: could not drop route: %s",
+ "MESSAGE=%-*s: could not drop route: %s",
IFNAMSIZ,
link->ifname, strerror(-r),
"ERRNO=%d", -r,
r = sd_rtnl_message_get_errno(m);
if (r < 0 && r != -EEXIST)
log_struct_link(LOG_WARNING, link,
- "MESSAGE=%*s: could not set address: %s",
+ "MESSAGE=%-*s: could not set address: %s",
IFNAMSIZ,
link->ifname, strerror(-r),
"ERRNO=%d", -r,
log_debug_link(link, "setting addresses");
- LIST_FOREACH(static_addresses, ad, link->network->static_addresses) {
+ LIST_FOREACH(addresses, ad, link->network->static_addresses) {
r = address_configure(ad, link, &address_handler);
if (r < 0) {
log_warning_link(link,
r = sd_rtnl_message_get_errno(m);
if (r < 0 && r != -ENOENT)
log_struct_link(LOG_WARNING, link,
- "MESSAGE=%*s: could not update address: %s",
+ "MESSAGE=%-*s: could not update address: %s",
IFNAMSIZ,
link->ifname, strerror(-r),
"ERRNO=%d", -r,
r = sd_rtnl_message_get_errno(m);
if (r < 0 && r != -EADDRNOTAVAIL)
log_struct_link(LOG_WARNING, link,
- "MESSAGE=%*s: could not drop address: %s",
+ "MESSAGE=%-*s: could not drop address: %s",
IFNAMSIZ,
link->ifname, strerror(-r),
"ERRNO=%d", -r,
r = sd_rtnl_message_get_errno(m);
if (r < 0)
log_struct_link(LOG_WARNING, link,
- "MESSAGE=%s: could not set MTU: %s",
- link->ifname, strerror(-r),
+ "MESSAGE=%-*s: could not set MTU: %s",
+ IFNAMSIZ, link->ifname, strerror(-r),
"ERRNO=%d", -r,
NULL);
struct in_addr netmask;
struct in_addr gateway;
unsigned prefixlen;
- struct in_addr *nameservers;
- size_t nameservers_size;
int r;
assert(client);
if (r >= 0)
log_struct_link(LOG_INFO, link,
- "MESSAGE=%*s: DHCPv4 address %u.%u.%u.%u/%u via %u.%u.%u.%u",
+ "MESSAGE=%-*s: DHCPv4 address %u.%u.%u.%u/%u via %u.%u.%u.%u",
IFNAMSIZ,
link->ifname,
ADDRESS_FMT_VAL(address),
NULL);
else
log_struct_link(LOG_INFO, link,
- "MESSAGE=%*s: DHCPv4 address %u.%u.%u.%u/%u",
+ "MESSAGE=%-*s: DHCPv4 address %u.%u.%u.%u/%u",
IFNAMSIZ,
link->ifname,
ADDRESS_FMT_VAL(address),
link->dhcp_lease = lease;
- if (link->network->dhcp_dns) {
- r = sd_dhcp_lease_get_dns(lease, &nameservers, &nameservers_size);
- if (r >= 0) {
- r = manager_update_resolv_conf(link->manager);
- if (r < 0)
- log_error_link(link, "Failed to update resolv.conf");
- }
- }
-
if (link->network->dhcp_mtu) {
uint16_t mtu;
return r;
log_struct_link(LOG_INFO, link,
- "MESSAGE=%*s: IPv4 link-local address %u.%u.%u.%u",
+ "MESSAGE=%-*s: IPv4 link-local address %u.%u.%u.%u",
IFNAMSIZ,
link->ifname,
ADDRESS_FMT_VAL(address),
if (r < 0)
/* if we got a message without operstate, take it to mean
the state was unchanged */
- operstate = link->operstate;
+ operstate = link->kernel_operstate;
- if ((link->flags == flags) && (link->operstate == operstate))
+ if ((link->flags == flags) && (link->kernel_operstate == operstate))
return 0;
if (link->flags != flags) {
unknown_flags_removed);
}
- carrier_gained = !link_has_carrier(link->flags, link->operstate) &&
+ carrier_gained = !link_has_carrier(link->flags, link->kernel_operstate) &&
link_has_carrier(flags, operstate);
- carrier_lost = link_has_carrier(link->flags, link->operstate) &&
+ carrier_lost = link_has_carrier(link->flags, link->kernel_operstate) &&
!link_has_carrier(flags, operstate);
link->flags = flags;
- link->operstate = operstate;
+ link->kernel_operstate = operstate;
link_save(link);
/* we warn but don't fail the link, as it may
be brought up later */
log_struct_link(LOG_WARNING, link,
- "MESSAGE=%*s: could not bring up interface: %s",
+ "MESSAGE=%-*s: could not bring up interface: %s",
IFNAMSIZ,
link->ifname, strerror(-r),
"ERRNO=%d", -r,
r = sd_rtnl_message_get_errno(m);
if (r < 0) {
log_struct_link(LOG_ERR, link,
- "MESSAGE=%*s: could not enslave: %s",
+ "MESSAGE=%-*s: could not enslave: %s",
IFNAMSIZ,
link->ifname, strerror(-r),
"ERRNO=%d", -r,
}
static int link_enter_enslave(Link *link) {
- NetDev *vlan, *macvlan;
+ NetDev *vlan, *macvlan, *vxlan;
Iterator i;
int r;
!link->network->bond &&
!link->network->tunnel &&
hashmap_isempty(link->network->vlans) &&
- hashmap_isempty(link->network->macvlans))
+ hashmap_isempty(link->network->macvlans) &&
+ hashmap_isempty(link->network->vxlans))
return link_enslaved(link);
if (link->network->bond) {
log_struct_link(LOG_DEBUG, link,
- "MESSAGE=%*s: enslaving by '%s'",
+ "MESSAGE=%-*s: enslaving by '%s'",
IFNAMSIZ,
link->ifname, link->network->bond->ifname,
NETDEV(link->network->bond),
r = netdev_enslave(link->network->bond, link, &enslave_handler);
if (r < 0) {
log_struct_link(LOG_WARNING, link,
- "MESSAGE=%*s: could not enslave by '%s': %s",
+ "MESSAGE=%-*s: could not enslave by '%s': %s",
IFNAMSIZ,
link->ifname, link->network->bond->ifname, strerror(-r),
NETDEV(link->network->bond),
if (link->network->bridge) {
log_struct_link(LOG_DEBUG, link,
- "MESSAGE=%*s: enslaving by '%s'",
+ "MESSAGE=%-*s: enslaving by '%s'",
IFNAMSIZ,
link->ifname, link->network->bridge->ifname,
NETDEV(link->network->bridge),
r = netdev_enslave(link->network->bridge, link, &enslave_handler);
if (r < 0) {
log_struct_link(LOG_WARNING, link,
- "MESSAGE=%*s: could not enslave by '%s': %s",
+ "MESSAGE=%-*s: could not enslave by '%s': %s",
IFNAMSIZ,
link->ifname, link->network->bridge->ifname, strerror(-r),
NETDEV(link->network->bridge),
if (link->network->tunnel) {
log_struct_link(LOG_DEBUG, link,
- "MESSAGE=%*s: enslaving by '%s'",
+ "MESSAGE=%-*s: enslaving by '%s'",
IFNAMSIZ,
link->ifname, link->network->tunnel->ifname,
NETDEV(link->network->tunnel),
r = netdev_enslave(link->network->tunnel, link, &enslave_handler);
if (r < 0) {
log_struct_link(LOG_WARNING, link,
- "MESSAGE=%*s: could not enslave by '%s': %s",
+ "MESSAGE=%-*s: could not enslave by '%s': %s",
IFNAMSIZ,
link->ifname, link->network->tunnel->ifname, strerror(-r),
NETDEV(link->network->tunnel),
HASHMAP_FOREACH(vlan, link->network->vlans, i) {
log_struct_link(LOG_DEBUG, link,
- "MESSAGE=%*s: enslaving by '%s'",
+ "MESSAGE=%-*s: enslaving by '%s'",
IFNAMSIZ,
link->ifname, vlan->ifname, NETDEV(vlan), NULL);
r = netdev_enslave(vlan, link, &enslave_handler);
if (r < 0) {
log_struct_link(LOG_WARNING, link,
- "MESSAGE=%*s: could not enslave by '%s': %s",
+ "MESSAGE=%-*s: could not enslave by '%s': %s",
IFNAMSIZ,
link->ifname, vlan->ifname, strerror(-r),
NETDEV(vlan), NULL);
HASHMAP_FOREACH(macvlan, link->network->macvlans, i) {
log_struct_link(LOG_DEBUG, link,
- "MESSAGE=%*s: enslaving by '%s'",
+ "MESSAGE=%-*s: enslaving by '%s'",
IFNAMSIZ,
link->ifname, macvlan->ifname, NETDEV(macvlan), NULL);
r = netdev_enslave(macvlan, link, &enslave_handler);
if (r < 0) {
log_struct_link(LOG_WARNING, link,
- "MESSAGE=%*s: could not enslave by '%s': %s",
+ "MESSAGE=%-*s: could not enslave by '%s': %s",
IFNAMSIZ,
link->ifname, macvlan->ifname, strerror(-r),
NETDEV(macvlan), NULL);
link->enslaving ++;
}
+ HASHMAP_FOREACH(vxlan, link->network->vxlans, i) {
+ log_struct_link(LOG_DEBUG, link,
+ "MESSAGE=%*s: enslaving by '%s'",
+ IFNAMSIZ,
+ link->ifname, vxlan->ifname, NETDEV(vxlan), NULL);
+
+ r = netdev_enslave(vxlan, link, &enslave_handler);
+ if (r < 0) {
+ log_struct_link(LOG_WARNING, link,
+ "MESSAGE=%*s: could not enslave by '%s': %s",
+ IFNAMSIZ,
+ link->ifname, vxlan->ifname, strerror(-r),
+ NETDEV(vxlan), NULL);
+ link_enter_failed(link);
+ return r;
+ }
+
+ link_ref(link);
+ link->enslaving ++;
+ }
+
return 0;
}
}
}
- if (link_has_carrier(link->flags, link->operstate)) {
+ if (link->network->dhcp_server) {
+ Address *address;
+
+ 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;
+
+ LIST_FOREACH(addresses, address,
+ link->network->static_addresses) {
+ struct in_addr pool_start;
+
+ if (address->family != AF_INET)
+ continue;
+
+ /* currently this is picked essentially at random */
+ r = sd_dhcp_server_set_address(link->dhcp_server,
+ &address->in_addr.in);
+ if (r < 0)
+ return r;
+
+ /* offer 32 addresses starting from the address following the server address */
+ pool_start.s_addr = htobe32(be32toh(address->in_addr.in.s_addr) + 1);
+ r = sd_dhcp_server_set_lease_pool(link->dhcp_server,
+ &pool_start, 32);
+ if (r < 0)
+ return r;
+
+ break;
+ }
+
+ /* TODO:
+ r = sd_dhcp_server_set_router(link->dhcp_server,
+ &main_address->in_addr.in);
+ if (r < 0)
+ return r;
+
+ r = sd_dhcp_server_set_prefixlen(link->dhcp_server,
+ main_address->prefixlen);
+ if (r < 0)
+ return r;
+ */
+ }
+
+ if (link_has_carrier(link->flags, link->kernel_operstate)) {
r = link_acquire_conf(link);
if (r < 0)
return r;
return link_enter_enslave(link);
}
-int link_initialized(Link *link, struct udev_device *device) {
+static int link_initialized_and_synced(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata) {
+ Link *link = userdata;
Network *network;
int r;
if (link->state != LINK_STATE_INITIALIZING)
return 0;
- if (device)
- link->udev_device = udev_device_ref(device);
-
- log_debug_link(link, "link initialized");
+ log_debug_link(link, "link state is up-to-date");
- r = network_get(link->manager, device, link->ifname, &link->mac, &network);
+ r = network_get(link->manager, link->udev_device, link->ifname, &link->mac, &network);
if (r == -ENOENT) {
link_enter_unmanaged(link);
return 0;
return 0;
}
+int link_initialized(Link *link, struct udev_device *device) {
+ _cleanup_rtnl_message_unref_ sd_rtnl_message *req = NULL;
+ int r;
+
+ assert(link);
+ assert(link->manager);
+ assert(link->manager->rtnl);
+ assert(device);
+
+ if (link->state != LINK_STATE_INITIALIZING)
+ return 0;
+
+ log_debug_link(link, "udev initialized link");
+
+ link->udev_device = udev_device_ref(device);
+
+ /* udev has initialized the link, but we don't know if we have yet processed
+ the NEWLINK messages with the latest state. Do a GETLINK, when it returns
+ we know that the pending NEWLINKs have already been processed and that we
+ are up-to-date */
+
+ r = sd_rtnl_message_new_link(link->manager->rtnl, &req, RTM_GETLINK, link->ifindex);
+ if (r < 0)
+ return r;
+
+ r = sd_rtnl_call_async(link->manager->rtnl, req, link_initialized_and_synced, link, 0, NULL);
+ if (r < 0)
+ return r;
+
+ return 0;
+}
+
int link_rtnl_process_address(sd_rtnl *rtnl, sd_rtnl_message *message, void *userdata) {
Manager *m = userdata;
Link *link = NULL;
uint16_t type;
_cleanup_address_free_ Address *address = NULL;
+ Address *ad;
char buf[INET6_ADDRSTRLEN];
+ bool address_dropped = false;
int r, ifindex;
assert(rtnl);
r = sd_rtnl_message_addr_get_prefixlen(message, &address->prefixlen);
if (r < 0) {
- log_warning_link(link, "rtnl: recevied address with invalid prefixlen, ignoring");
+ log_warning_link(link, "rtnl: received address with invalid prefixlen, ignoring");
+ return 0;
+ }
+
+ r = sd_rtnl_message_addr_get_scope(message, &address->scope);
+ if (r < 0) {
+ log_warning_link(link, "rtnl: received address with invalid scope, ignoring");
return 0;
}
return 0;
}
+ LIST_FOREACH(addresses, ad, link->addresses) {
+ if (address_equal(ad, address)) {
+ LIST_REMOVE(addresses, link->addresses, ad);
+
+ address_free(ad);
+
+ address_dropped = true;
+
+ break;
+ }
+ }
+
switch (type) {
case RTM_NEWADDR:
- log_info_link(link, "added address: %s/%u", buf,
- address->prefixlen);
- break;
+ if (!address_dropped)
+ log_debug_link(link, "added address: %s/%u", buf,
+ address->prefixlen);
+
+ LIST_PREPEND(addresses, link->addresses, address);
+ address = NULL;
+ link_save(link);
+
+ break;
case RTM_DELADDR:
- log_info_link(link, "removed address: %s/%u", buf,
- address->prefixlen);
+ if (address_dropped) {
+ log_debug_link(link, "removed address: %s/%u", buf,
+ address->prefixlen);
+
+ link_save(link);
+ }
+
break;
default:
assert_not_reached("Received invalid RTNL message type");
return -errno;
}
- if (udev_device_get_is_initialized(device) <= 0)
+ if (udev_device_get_is_initialized(device) <= 0) {
/* not yet ready */
+ log_debug_link(link, "udev initializing link...");
return 0;
- }
+ }
- r = link_initialized(link, device);
- if (r < 0)
- return r;
+ r = link_initialized(link, device);
+ if (r < 0)
+ return r;
+ } else {
+ r = link_initialized_and_synced(m->rtnl, NULL, link);
+ if (r < 0)
+ return r;
+ }
return 0;
}
return link_update_flags(link, m);
}
+static void serialize_addresses(FILE *f, const char *key, Address *address) {
+ Address *ad;
+
+ assert(f);
+ assert(key);
+
+ if (!address)
+ return;
+
+ fprintf(f, "%s=", key);
+
+ LIST_FOREACH(addresses, ad, address) {
+ char buf[INET6_ADDRSTRLEN];
+
+ if (inet_ntop(ad->family, &ad->in_addr, buf, INET6_ADDRSTRLEN))
+ fprintf(f, "%s%s", buf, (ad->addresses_next) ? " ": "");
+ }
+
+ fputs("\n", f);
+}
+
+static void link_update_operstate(Link *link) {
+
+ assert(link);
+
+ if (link->kernel_operstate == IF_OPER_DORMANT)
+ link->operstate = LINK_OPERSTATE_DORMANT;
+ else if (link_has_carrier(link->flags, link->kernel_operstate)) {
+ Address *address;
+ uint8_t scope = RT_SCOPE_NOWHERE;
+
+ /* if we have carrier, check what addresses we have */
+ LIST_FOREACH(addresses, address, link->addresses) {
+ if (address->scope < scope)
+ scope = address->scope;
+ }
+
+ if (scope < RT_SCOPE_SITE)
+ /* universally accessible addresses found */
+ link->operstate = LINK_OPERSTATE_ROUTABLE;
+ else if (scope < RT_SCOPE_HOST)
+ /* only link or site local addresses found */
+ link->operstate = LINK_OPERSTATE_DEGRADED;
+ else
+ /* no useful addresses found */
+ link->operstate = LINK_OPERSTATE_CARRIER;
+ } else
+ link->operstate = LINK_OPERSTATE_UNKNOWN;
+}
+
int link_save(Link *link) {
_cleanup_free_ char *temp_path = NULL;
_cleanup_fclose_ FILE *f = NULL;
- const char *admin_state, *oper_state = "unknown";
+ const char *admin_state, *oper_state;
int r;
assert(link);
assert(link->lease_file);
assert(link->manager);
+ link_update_operstate(link);
+
r = manager_save(link->manager);
if (r < 0)
return r;
admin_state = link_state_to_string(link->state);
assert(admin_state);
- if (link->operstate == IF_OPER_DORMANT)
- oper_state = "dormant";
- else if (link_has_carrier(link->flags, link->operstate))
- oper_state = "carrier";
+ oper_state = link_operstate_to_string(link->operstate);
+ assert(oper_state);
r = fopen_temporary(link->state_file, &f, &temp_path);
if (r < 0)
"FLAGS=%u\n",
admin_state, oper_state, link->flags);
+ if (link->network) {
+ serialize_addresses(f, "DNS", link->network->dns);
+ serialize_addresses(f, "NTP", link->network->ntp);
+ }
+
if (link->dhcp_lease) {
+ assert(link->network);
+
r = dhcp_lease_save(link->dhcp_lease, link->lease_file);
if (r < 0)
goto finish;
- fprintf(f, "DHCP_LEASE=%s\n", link->lease_file);
+ fprintf(f,
+ "DHCP_LEASE=%s\n"
+ "DHCP_USE_DNS=%s\n"
+ "DHCP_USE_NTP=%s\n",
+ link->lease_file,
+ yes_no(link->network->dhcp_dns),
+ yes_no(link->network->dhcp_ntp));
} else
unlink(link->lease_file);
};
DEFINE_STRING_TABLE_LOOKUP(link_state, LinkState);
+
+static const char* const link_operstate_table[_LINK_OPERSTATE_MAX] = {
+ [LINK_OPERSTATE_UNKNOWN] = "unknown",
+ [LINK_OPERSTATE_DORMANT] = "dormant",
+ [LINK_OPERSTATE_CARRIER] = "carrier",
+ [LINK_OPERSTATE_DEGRADED] = "degraded",
+ [LINK_OPERSTATE_ROUTABLE] = "routable",
+};
+
+DEFINE_STRING_TABLE_LOOKUP(link_operstate, LinkOperationalState);
~ianmdlvl / elogind.git / blobdiff