#include <linux/if.h>
#include <unistd.h>
-#include "networkd.h"
-#include "networkd-netdev.h"
-#include "libudev-private.h"
-#include "udev-util.h"
#include "util.h"
#include "virt.h"
+#include "fileio.h"
#include "bus-util.h"
+#include "udev-util.h"
+#include "libudev-private.h"
#include "network-internal.h"
+#include "networkd-link.h"
+#include "networkd-netdev.h"
#include "conf-parser.h"
-
-#include "network-util.h"
#include "dhcp-lease-internal.h"
-static int ipv4ll_address_update(Link *link, bool deprecate);
-static bool ipv4ll_is_bound(sd_ipv4ll *ll);
+bool link_dhcp6_enabled(Link *link) {
+ if (link->flags & IFF_LOOPBACK)
+ return false;
+
+ if (!link->network)
+ return false;
+
+ return IN_SET(link->network->dhcp, ADDRESS_FAMILY_IPV6, ADDRESS_FAMILY_YES);
+}
+
+bool link_dhcp4_enabled(Link *link) {
+ if (link->flags & IFF_LOOPBACK)
+ return false;
+
+ if (!link->network)
+ return false;
+
+ return IN_SET(link->network->dhcp, ADDRESS_FAMILY_IPV4, ADDRESS_FAMILY_YES);
+}
+
+bool link_dhcp4_server_enabled(Link *link) {
+ if (link->flags & IFF_LOOPBACK)
+ return false;
+
+ if (!link->network)
+ return false;
+
+ return link->network->dhcp_server;
+}
+
+bool link_ipv4ll_enabled(Link *link) {
+ if (link->flags & IFF_LOOPBACK)
+ return false;
+
+ if (!link->network)
+ return false;
+
+ return IN_SET(link->network->link_local, ADDRESS_FAMILY_IPV4, ADDRESS_FAMILY_YES);
+}
+
+bool link_ipv6ll_enabled(Link *link) {
+ if (link->flags & IFF_LOOPBACK)
+ return false;
+
+ if (!link->network)
+ return false;
+
+ return IN_SET(link->network->link_local, ADDRESS_FAMILY_IPV6, ADDRESS_FAMILY_YES);
+}
+
+bool link_lldp_enabled(Link *link) {
+ if (link->flags & IFF_LOOPBACK)
+ return false;
+
+ if (!link->network)
+ return false;
+
+ if (link->network->bridge)
+ return false;
+
+ return link->network->lldp;
+}
+
+static bool link_ipv4_forward_enabled(Link *link) {
+ if (link->flags & IFF_LOOPBACK)
+ return false;
+
+ if (!link->network)
+ return false;
+
+ return IN_SET(link->network->ip_forward, ADDRESS_FAMILY_IPV4, ADDRESS_FAMILY_YES);
+}
+
+static bool link_ipv6_forward_enabled(Link *link) {
+ if (link->flags & IFF_LOOPBACK)
+ return false;
+
+ if (!link->network)
+ return false;
+
+ return IN_SET(link->network->ip_forward, ADDRESS_FAMILY_IPV6, ADDRESS_FAMILY_YES);
+}
+
+#define FLAG_STRING(string, flag, old, new) \
+ (((old ^ new) & flag) \
+ ? ((old & flag) ? (" -" string) : (" +" string)) \
+ : "")
+
+static int link_update_flags(Link *link, sd_rtnl_message *m) {
+ unsigned flags, unknown_flags_added, unknown_flags_removed, unknown_flags;
+ uint8_t operstate;
+ int r;
+
+ assert(link);
+
+ r = sd_rtnl_message_link_get_flags(m, &flags);
+ if (r < 0) {
+ log_link_warning(link, "Could not get link flags");
+ return r;
+ }
+
+ r = sd_rtnl_message_read_u8(m, IFLA_OPERSTATE, &operstate);
+ if (r < 0)
+ /* if we got a message without operstate, take it to mean
+ the state was unchanged */
+ operstate = link->kernel_operstate;
+
+ if ((link->flags == flags) && (link->kernel_operstate == operstate))
+ return 0;
+
+ if (link->flags != flags) {
+ log_link_debug(link, "flags change:%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s",
+ FLAG_STRING("LOOPBACK", IFF_LOOPBACK, link->flags, flags),
+ FLAG_STRING("MASTER", IFF_MASTER, link->flags, flags),
+ FLAG_STRING("SLAVE", IFF_SLAVE, link->flags, flags),
+ FLAG_STRING("UP", IFF_UP, link->flags, flags),
+ FLAG_STRING("DORMANT", IFF_DORMANT, link->flags, flags),
+ FLAG_STRING("LOWER_UP", IFF_LOWER_UP, link->flags, flags),
+ FLAG_STRING("RUNNING", IFF_RUNNING, link->flags, flags),
+ FLAG_STRING("MULTICAST", IFF_MULTICAST, link->flags, flags),
+ FLAG_STRING("BROADCAST", IFF_BROADCAST, link->flags, flags),
+ FLAG_STRING("POINTOPOINT", IFF_POINTOPOINT, link->flags, flags),
+ FLAG_STRING("PROMISC", IFF_PROMISC, link->flags, flags),
+ FLAG_STRING("ALLMULTI", IFF_ALLMULTI, link->flags, flags),
+ FLAG_STRING("PORTSEL", IFF_PORTSEL, link->flags, flags),
+ FLAG_STRING("AUTOMEDIA", IFF_AUTOMEDIA, link->flags, flags),
+ FLAG_STRING("DYNAMIC", IFF_DYNAMIC, link->flags, flags),
+ FLAG_STRING("NOARP", IFF_NOARP, link->flags, flags),
+ FLAG_STRING("NOTRAILERS", IFF_NOTRAILERS, link->flags, flags),
+ FLAG_STRING("DEBUG", IFF_DEBUG, link->flags, flags),
+ FLAG_STRING("ECHO", IFF_ECHO, link->flags, flags));
+
+ unknown_flags = ~(IFF_LOOPBACK | IFF_MASTER | IFF_SLAVE | IFF_UP |
+ IFF_DORMANT | IFF_LOWER_UP | IFF_RUNNING |
+ IFF_MULTICAST | IFF_BROADCAST | IFF_POINTOPOINT |
+ IFF_PROMISC | IFF_ALLMULTI | IFF_PORTSEL |
+ IFF_AUTOMEDIA | IFF_DYNAMIC | IFF_NOARP |
+ IFF_NOTRAILERS | IFF_DEBUG | IFF_ECHO);
+ unknown_flags_added = ((link->flags ^ flags) & flags & unknown_flags);
+ unknown_flags_removed = ((link->flags ^ flags) & link->flags & unknown_flags);
+
+ /* link flags are currently at most 18 bits, let's align to
+ * printing 20 */
+ if (unknown_flags_added)
+ log_link_debug(link,
+ "unknown link flags gained: %#.5x (ignoring)",
+ unknown_flags_added);
+
+ if (unknown_flags_removed)
+ log_link_debug(link,
+ "unknown link flags lost: %#.5x (ignoring)",
+ unknown_flags_removed);
+ }
+
+ link->flags = flags;
+ link->kernel_operstate = operstate;
+
+ link_save(link);
+
+ return 0;
+}
static int link_new(Manager *manager, sd_rtnl_message *message, Link **ret) {
_cleanup_link_unref_ Link *link = NULL;
int r, ifindex;
assert(manager);
- assert(manager->links);
assert(message);
assert(ret);
link->n_ref = 1;
link->manager = manager;
- link->state = LINK_STATE_INITIALIZING;
+ link->state = LINK_STATE_PENDING;
link->ifindex = ifindex;
link->ifname = strdup(ifname);
if (!link->ifname)
r = sd_rtnl_message_read_ether_addr(message, IFLA_ADDRESS, &link->mac);
if (r < 0)
- log_debug_link(link, "MAC address not found for new device, continuing without");
+ log_link_debug(link, "MAC address not found for new device, continuing without");
+
+ r = asprintf(&link->state_file, "/run/systemd/netif/links/%d",
+ link->ifindex);
+ if (r < 0)
+ return -ENOMEM;
- r = asprintf(&link->state_file, "/run/systemd/netif/links/%"PRIu64,
+ r = asprintf(&link->lease_file, "/run/systemd/netif/leases/%d",
link->ifindex);
if (r < 0)
return -ENOMEM;
- r = asprintf(&link->lease_file, "/run/systemd/netif/leases/%"PRIu64,
+ r = asprintf(&link->lldp_file, "/run/systemd/netif/lldp/%d",
link->ifindex);
if (r < 0)
return -ENOMEM;
- r = hashmap_put(manager->links, &link->ifindex, link);
+
+ r = hashmap_ensure_allocated(&manager->links, NULL);
+ if (r < 0)
+ return r;
+
+ r = hashmap_put(manager->links, INT_TO_PTR(link->ifindex), link);
+ if (r < 0)
+ return r;
+
+ r = link_update_flags(link, message);
if (r < 0)
return r;
address_free(address);
}
+ sd_dhcp_server_unref(link->dhcp_server);
sd_dhcp_client_unref(link->dhcp_client);
sd_dhcp_lease_unref(link->dhcp_lease);
- unlink(link->lease_file);
free(link->lease_file);
+ sd_lldp_free(link->lldp);
+
+ free(link->lldp_file);
+
sd_ipv4ll_unref(link->ipv4ll);
sd_dhcp6_client_unref(link->dhcp6_client);
sd_icmp6_nd_unref(link->icmp6_router_discovery);
if (link->manager)
- hashmap_remove(link->manager->links, &link->ifindex);
+ hashmap_remove(link->manager->links, INT_TO_PTR(link->ifindex));
free(link->ifname);
- unlink(link->state_file);
free(link->state_file);
udev_device_unref(link->udev_device);
int link_get(Manager *m, int ifindex, Link **ret) {
Link *link;
- uint64_t ifindex_64;
assert(m);
- assert(m->links);
assert(ifindex);
assert(ret);
- ifindex_64 = ifindex;
- link = hashmap_get(m->links, &ifindex_64);
+ link = hashmap_get(m->links, INT_TO_PTR(ifindex));
if (!link)
return -ENODEV;
return 0;
}
+static void link_set_state(Link *link, LinkState state) {
+ assert(link);
+
+ if (link->state == state)
+ return;
+
+ link->state = state;
+
+ link_send_changed(link, "AdministrativeState", NULL);
+
+ return;
+}
+
void link_drop(Link *link) {
if (!link || link->state == LINK_STATE_LINGER)
return;
- link->state = LINK_STATE_LINGER;
+ link_set_state(link, LINK_STATE_LINGER);
- log_debug_link(link, "link removed");
+ log_link_debug(link, "link removed");
link_unref(link);
static void link_enter_unmanaged(Link *link) {
assert(link);
- log_debug_link(link, "unmanaged");
+ log_link_debug(link, "unmanaged");
- link->state = LINK_STATE_UNMANAGED;
+ link_set_state(link, LINK_STATE_UNMANAGED);
link_save(link);
}
if (!link->network)
return 0;
- if (IN_SET(link->network->dhcp, DHCP_SUPPORT_BOTH, DHCP_SUPPORT_V6)) {
- assert(link->dhcp_client);
-
+ if (link->dhcp_client) {
k = sd_dhcp_client_stop(link->dhcp_client);
if (k < 0) {
- log_warning_link(link, "Could not stop DHCPv4 client: %s", strerror(-r));
+ log_link_warning(link, "Could not stop DHCPv4 client: %s",
+ strerror(-r));
r = k;
}
}
- if (link->network->ipv4ll) {
- assert(link->ipv4ll);
-
+ if (link->ipv4ll) {
k = sd_ipv4ll_stop(link->ipv4ll);
if (k < 0) {
- log_warning_link(link, "Could not stop IPv4 link-local: %s", strerror(-r));
- r = k;
- }
- }
-
- 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));
+ log_link_warning(link, "Could not stop IPv4 link-local: %s",
+ strerror(-r));
r = k;
}
}
- if (IN_SET(link->network->dhcp, DHCP_SUPPORT_BOTH, DHCP_SUPPORT_V6)) {
- assert(link->icmp6_router_discovery);
+ if(link->icmp6_router_discovery) {
if (link->dhcp6_client) {
k = sd_dhcp6_client_stop(link->dhcp6_client);
if (k < 0) {
- log_warning_link(link, "Could not stop DHCPv6 client: %s", strerror(-r));
+ log_link_warning(link, "Could not stop DHCPv6 client: %s",
+ strerror(-r));
r = k;
}
}
k = sd_icmp6_nd_stop(link->icmp6_router_discovery);
if (k < 0) {
- log_warning_link(link, "Could not stop ICMPv6 router discovery: %s", strerror(-r));
+ log_link_warning(link,
+ "Could not stop ICMPv6 router discovery: %s",
+ strerror(-r));
+ r = k;
+ }
+ }
+
+ if (link->lldp) {
+
+ k = sd_lldp_stop(link->lldp);
+ if (k < 0) {
+ log_link_warning(link, "Could not stop LLDP : %s",
+ strerror(-r));
r = k;
}
}
return r;
}
-static void link_enter_failed(Link *link) {
+void link_enter_failed(Link *link) {
assert(link);
if (IN_SET(link->state, LINK_STATE_FAILED, LINK_STATE_LINGER))
return;
- log_warning_link(link, "failed");
+ log_link_warning(link, "failed");
- link->state = LINK_STATE_FAILED;
+ link_set_state(link, LINK_STATE_FAILED);
link_stop_clients(link);
assert(link);
assert(link->network);
- /* The the first statically configured address if there is any */
+ /* The first statically configured address if there is any */
LIST_FOREACH(addresses, address, link->network->static_addresses) {
if (address->family != AF_INET)
continue;
- if (in_addr_null(address->family, &address->in_addr))
+ if (in_addr_is_null(address->family, &address->in_addr))
continue;
return address;
}
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 &&
- !sd_dhcp_server_is_running(link->dhcp_server)) {
- struct in_addr pool_start;
- Address *address;
-
- address = link_find_dhcp_server_address(link);
- if (!address) {
- log_warning_link(link, "Failed to find suitable address for DHCPv4 server instance.");
- link_enter_failed(link);
- return 0;
- }
-
- log_debug_link(link, "offering DHCPv4 leases");
-
- 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;
+ log_link_info(link, "link configured");
- /* TODO:
- r = sd_dhcp_server_set_router(link->dhcp_server,
- &main_address->in_addr.in);
- if (r < 0)
- return r;
+ link_set_state(link, LINK_STATE_CONFIGURED);
- r = sd_dhcp_server_set_prefixlen(link->dhcp_server,
- main_address->prefixlen);
- if (r < 0)
- return r;
- */
+ link_save(link);
- r = sd_dhcp_server_start(link->dhcp_server);
- if (r < 0) {
- log_warning_link(link, "could not start DHCPv4 server "
- "instance: %s", strerror(-r));
+ return 0;
+}
- link_enter_failed(link);
+void link_client_handler(Link *link) {
+ assert(link);
+ assert(link->network);
- return 0;
- }
- }
+ if (!link->static_configured)
+ return;
- log_info_link(link, "link configured");
+ if (link_ipv4ll_enabled(link))
+ if (!link->ipv4ll_address ||
+ !link->ipv4ll_route)
+ return;
- link->state = LINK_STATE_CONFIGURED;
+ if (link_dhcp4_enabled(link) && !link->dhcp4_configured)
+ return;
- link_save(link);
+ if (link->state != LINK_STATE_CONFIGURED)
+ link_enter_configured(link);
- return 0;
+ return;
}
static int route_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata) {
_cleanup_link_unref_ Link *link = userdata;
int r;
- assert(link->route_messages > 0);
+ assert(link->link_messages > 0);
assert(IN_SET(link->state, LINK_STATE_SETTING_ADDRESSES,
LINK_STATE_SETTING_ROUTES, LINK_STATE_FAILED,
LINK_STATE_LINGER));
- link->route_messages --;
+ link->link_messages --;
- if (IN_SET(LINK_STATE_FAILED, LINK_STATE_LINGER))
+ if (IN_SET(link->state, LINK_STATE_FAILED, LINK_STATE_LINGER))
return 1;
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",
- IFNAMSIZ,
- link->ifname, strerror(-r),
- "ERRNO=%d", -r,
- NULL);
+ log_link_warning_errno(link, -r, "%-*s: could not set route: %m", IFNAMSIZ, link->ifname);
- /* we might have received an old reply after moving back to SETTING_ADDRESSES,
- * ignore it */
- if (link->route_messages == 0 && link->state == LINK_STATE_SETTING_ROUTES) {
- log_debug_link(link, "routes set");
- link_enter_configured(link);
+ if (link->link_messages == 0) {
+ log_link_debug(link, "routes set");
+ link->static_configured = true;
+ link_client_handler(link);
}
return 1;
}
-static int link_set_dhcp_routes(Link *link) {
- struct sd_dhcp_route *static_routes;
- int r, n, i;
+static int link_enter_set_routes(Link *link) {
+ Route *rt;
+ int r;
assert(link);
+ assert(link->network);
+ assert(link->state == LINK_STATE_SETTING_ADDRESSES);
- n = sd_dhcp_lease_get_routes(link->dhcp_lease, &static_routes);
- if (n < 0) {
- if (n != -ENOENT)
- log_warning_link(link, "DHCP error: could not get routes: %s", strerror(-n));
- return n;
- }
-
- for (i = 0; i < n; i++) {
- _cleanup_route_free_ Route *route = NULL;
-
- r = route_new_dynamic(&route);
- if (r < 0) {
- log_error_link(link, "Could not allocate route: %s",
- strerror(-r));
- return r;
- }
-
- route->family = AF_INET;
- route->in_addr.in = static_routes[i].gw_addr;
- route->dst_addr.in = static_routes[i].dst_addr;
- route->dst_prefixlen = static_routes[i].dst_prefixlen;
- route->metrics = DHCP_ROUTE_METRIC;
+ link_set_state(link, LINK_STATE_SETTING_ROUTES);
- r = route_configure(route, link, &route_handler);
+ LIST_FOREACH(routes, rt, link->network->static_routes) {
+ r = route_configure(rt, link, &route_handler);
if (r < 0) {
- log_warning_link(link,
- "could not set host route: %s", strerror(-r));
+ log_link_warning(link,
+ "could not set routes: %s",
+ strerror(-r));
+ link_enter_failed(link);
return r;
}
- link->route_messages ++;
+ link->link_messages ++;
}
+ if (link->link_messages == 0) {
+ link->static_configured = true;
+ link_client_handler(link);
+ } else
+ log_link_debug(link, "setting routes");
+
return 0;
}
-static int link_enter_set_routes(Link *link) {
- Route *rt;
- int r;
-
- assert(link);
- assert(link->network);
- assert(link->state == LINK_STATE_SETTING_ADDRESSES);
-
- link->state = LINK_STATE_SETTING_ROUTES;
-
- if (!link->network->static_routes && !link->dhcp_lease &&
- (!link->ipv4ll || ipv4ll_is_bound(link->ipv4ll) == false))
- return link_enter_configured(link);
-
- log_debug_link(link, "setting routes");
-
- LIST_FOREACH(routes, rt, link->network->static_routes) {
- r = route_configure(rt, link, &route_handler);
- if (r < 0) {
- log_warning_link(link,
- "could not set routes: %s", strerror(-r));
- link_enter_failed(link);
- return r;
- }
-
- link->route_messages ++;
- }
-
- if (link->ipv4ll && !link->dhcp_lease) {
- _cleanup_route_free_ Route *route = NULL;
- struct in_addr addr;
-
- r = sd_ipv4ll_get_address(link->ipv4ll, &addr);
- if (r < 0 && r != -ENOENT) {
- log_warning_link(link, "IPV4LL error: no address: %s",
- strerror(-r));
- return r;
- }
-
- if (r != -ENOENT) {
- r = route_new_dynamic(&route);
- if (r < 0) {
- log_error_link(link, "Could not allocate route: %s",
- strerror(-r));
- return r;
- }
-
- route->family = AF_INET;
- route->scope = RT_SCOPE_LINK;
- route->metrics = IPV4LL_ROUTE_METRIC;
-
- r = route_configure(route, link, &route_handler);
- if (r < 0) {
- log_warning_link(link,
- "could not set routes: %s", strerror(-r));
- link_enter_failed(link);
- return r;
- }
-
- link->route_messages ++;
- }
- }
-
- if (link->dhcp_lease) {
- _cleanup_route_free_ Route *route = NULL;
- _cleanup_route_free_ Route *route_gw = NULL;
- struct in_addr gateway;
-
- r = sd_dhcp_lease_get_router(link->dhcp_lease, &gateway);
- if (r < 0 && r != -ENOENT) {
- log_warning_link(link, "DHCP error: could not get gateway: %s",
- strerror(-r));
- return r;
- }
-
- if (r >= 0) {
- r = route_new_dynamic(&route);
- if (r < 0) {
- log_error_link(link, "Could not allocate route: %s",
- strerror(-r));
- return r;
- }
-
- r = route_new_dynamic(&route_gw);
- if (r < 0) {
- log_error_link(link, "Could not allocate route: %s",
- strerror(-r));
- return r;
- }
-
- /* The dhcp netmask may mask out the gateway. Add an explicit
- * route for the gw host so that we can route no matter the
- * netmask or existing kernel route tables. */
- route_gw->family = AF_INET;
- route_gw->dst_addr.in = gateway;
- route_gw->dst_prefixlen = 32;
- route_gw->scope = RT_SCOPE_LINK;
- route_gw->metrics = DHCP_ROUTE_METRIC;
-
- r = route_configure(route_gw, link, &route_handler);
- if (r < 0) {
- log_warning_link(link,
- "could not set host route: %s", strerror(-r));
- return r;
- }
-
- link->route_messages ++;
-
- route->family = AF_INET;
- route->in_addr.in = gateway;
- route->metrics = DHCP_ROUTE_METRIC;
-
- r = route_configure(route, link, &route_handler);
- if (r < 0) {
- log_warning_link(link,
- "could not set routes: %s", strerror(-r));
- link_enter_failed(link);
- return r;
- }
-
- link->route_messages ++;
- }
-
- if (link->network->dhcp_routes)
- link_set_dhcp_routes(link);
- }
-
- if (link->route_messages == 0) {
- link_enter_configured(link);
- }
-
- return 0;
-}
-
-static int route_drop_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata) {
- _cleanup_link_unref_ Link *link = userdata;
+int link_route_drop_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata) {
+ _cleanup_link_unref_ Link *link = userdata;
int r;
assert(m);
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",
- IFNAMSIZ,
- link->ifname, strerror(-r),
- "ERRNO=%d", -r,
- NULL);
-
- return 1;
-}
-
-static int link_get_address_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata) {
- _cleanup_link_unref_ Link *link = userdata;
- int r;
-
- assert(rtnl);
- assert(m);
- assert(link);
- assert(link->manager);
-
- for (; m; m = sd_rtnl_message_next(m)) {
- r = sd_rtnl_message_get_errno(m);
- if (r < 0) {
- log_debug_link(link, "getting address failed: %s", strerror(-r));
- continue;
- }
-
- r = link_rtnl_process_address(rtnl, m, link->manager);
- if (r < 0)
- log_warning_link(link, "could not process address: %s", strerror(-r));
- }
+ log_link_warning_errno(link, -r, "%-*s: could not drop route: %m", IFNAMSIZ, link->ifname);
return 1;
}
assert(m);
assert(link);
assert(link->ifname);
- assert(link->addr_messages > 0);
+ assert(link->link_messages > 0);
assert(IN_SET(link->state, LINK_STATE_SETTING_ADDRESSES,
LINK_STATE_FAILED, LINK_STATE_LINGER));
- link->addr_messages --;
+ link->link_messages --;
if (IN_SET(link->state, LINK_STATE_FAILED, LINK_STATE_LINGER))
return 1;
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",
- IFNAMSIZ,
- link->ifname, strerror(-r),
- "ERRNO=%d", -r,
- NULL);
- else if (r >= 0) {
- /* calling handler directly so take a ref */
- link_ref(link);
- link_get_address_handler(rtnl, m, link);
- }
+ log_link_warning_errno(link, -r, "%-*s: could not set address: %m", IFNAMSIZ, link->ifname);
+ else if (r >= 0)
+ link_rtnl_process_address(rtnl, m, link->manager);
- if (link->addr_messages == 0) {
- log_debug_link(link, "addresses set");
+ if (link->link_messages == 0) {
+ log_link_debug(link, "addresses set");
link_enter_set_routes(link);
}
static int link_enter_set_addresses(Link *link) {
Address *ad;
int r;
- uint32_t lifetime = CACHE_INFO_INFINITY_LIFE_TIME;
assert(link);
assert(link->network);
assert(link->state != _LINK_STATE_INVALID);
- link->state = LINK_STATE_SETTING_ADDRESSES;
-
- if (!link->network->static_addresses && !link->dhcp_lease &&
- (!link->ipv4ll || ipv4ll_is_bound(link->ipv4ll) == false))
- return link_enter_set_routes(link);
-
- log_debug_link(link, "setting addresses");
+ link_set_state(link, LINK_STATE_SETTING_ADDRESSES);
LIST_FOREACH(addresses, ad, link->network->static_addresses) {
r = address_configure(ad, link, &address_handler);
if (r < 0) {
- log_warning_link(link,
- "could not set addresses: %s", strerror(-r));
+ log_link_warning_errno(link, r, "Could not set addresses: %m");
link_enter_failed(link);
return r;
}
- link->addr_messages ++;
+ link->link_messages ++;
}
- if (link->ipv4ll && !link->dhcp_lease) {
- _cleanup_address_free_ Address *ll_addr = NULL;
- struct in_addr addr;
-
- r = sd_ipv4ll_get_address(link->ipv4ll, &addr);
- if (r < 0 && r != -ENOENT) {
- log_warning_link(link, "IPV4LL error: no address: %s",
- strerror(-r));
- return r;
- }
-
- if (r != -ENOENT) {
- r = address_new_dynamic(&ll_addr);
- if (r < 0) {
- log_error_link(link, "Could not allocate address: %s", strerror(-r));
- return r;
- }
-
- ll_addr->family = AF_INET;
- ll_addr->in_addr.in = addr;
- ll_addr->prefixlen = 16;
- ll_addr->broadcast.s_addr = ll_addr->in_addr.in.s_addr | htonl(0xfffffffflu >> ll_addr->prefixlen);
- ll_addr->scope = RT_SCOPE_LINK;
-
- r = address_configure(ll_addr, link, &address_handler);
- if (r < 0) {
- log_warning_link(link,
- "could not set addresses: %s", strerror(-r));
- link_enter_failed(link);
- return r;
- }
+ /* now that we can figure out a default address for the dhcp server,
+ start it */
+ if (link_dhcp4_server_enabled(link)) {
+ struct in_addr pool_start;
+ Address *address;
- link->addr_messages ++;
+ address = link_find_dhcp_server_address(link);
+ if (!address) {
+ log_link_warning(link,
+ "Failed to find suitable address for DHCPv4 server instance.");
+ link_enter_failed(link);
+ return 0;
}
- }
-
- if (link->dhcp_lease) {
- _cleanup_address_free_ Address *address = NULL;
- struct in_addr addr;
- struct in_addr netmask;
- unsigned prefixlen;
- r = sd_dhcp_lease_get_address(link->dhcp_lease, &addr);
- if (r < 0) {
- log_warning_link(link, "DHCP error: no address: %s",
- strerror(-r));
+ r = sd_dhcp_server_set_address(link->dhcp_server,
+ &address->in_addr.in,
+ address->prefixlen);
+ if (r < 0)
return r;
- }
-
- if (!link->network->dhcp_critical) {
- r = sd_dhcp_lease_get_lifetime(link->dhcp_lease,
- &lifetime);
- if (r < 0) {
- log_warning_link(link, "DHCP error: no lifetime: %s",
- strerror(-r));
- return r;
- }
- }
- r = sd_dhcp_lease_get_netmask(link->dhcp_lease, &netmask);
- if (r < 0) {
- log_warning_link(link, "DHCP error: no netmask: %s",
- strerror(-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;
- }
-
- prefixlen = net_netmask_to_prefixlen(&netmask);
- r = address_new_dynamic(&address);
- if (r < 0) {
- log_error_link(link, "Could not allocate address: %s",
- strerror(-r));
+ /* TODO:
+ r = sd_dhcp_server_set_router(link->dhcp_server,
+ &main_address->in_addr.in);
+ if (r < 0)
return r;
- }
- address->family = AF_INET;
- address->in_addr.in = addr;
- address->cinfo.ifa_prefered = lifetime;
- address->cinfo.ifa_valid = lifetime;
- address->prefixlen = prefixlen;
- address->broadcast.s_addr = addr.s_addr | ~netmask.s_addr;
+ r = sd_dhcp_server_set_prefixlen(link->dhcp_server,
+ main_address->prefixlen);
+ if (r < 0)
+ return r;
+ */
- /* use update rather than configure so that we will update the lifetime
- of an existing address if it has already been configured */
- r = address_update(address, link, &address_handler);
+ r = sd_dhcp_server_start(link->dhcp_server);
if (r < 0) {
- log_warning_link(link,
- "could not set addresses: %s", strerror(-r));
+ log_link_warning(link, "could not start DHCPv4 server "
+ "instance: %s", strerror(-r));
+
link_enter_failed(link);
- return r;
+
+ return 0;
}
- link->addr_messages ++;
+ log_link_debug(link, "offering DHCPv4 leases");
}
+ if (link->link_messages == 0) {
+ link_enter_set_routes(link);
+ } else
+ log_link_debug(link, "setting addresses");
+
return 0;
}
-static int address_update_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata) {
+int link_address_drop_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata) {
_cleanup_link_unref_ Link *link = userdata;
int r;
return 1;
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",
- IFNAMSIZ,
- link->ifname, strerror(-r),
- "ERRNO=%d", -r,
- NULL);
+ if (r < 0 && r != -EADDRNOTAVAIL)
+ log_link_warning_errno(link, -r, "%-*s: could not drop address: %m", IFNAMSIZ, link->ifname);
return 1;
}
-static int address_drop_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata) {
+static int link_set_bridge_fdb(Link *const link) {
+ FdbEntry *fdb_entry;
+ int r = 0;
+
+ LIST_FOREACH(static_fdb_entries, fdb_entry, link->network->static_fdb_entries) {
+ r = fdb_entry_configure(link, fdb_entry);
+ if(r < 0) {
+ log_link_error(link, "Failed to add MAC entry to static MAC table: %s", strerror(-r));
+ break;
+ }
+ }
+
+ return r;
+}
+
+static int link_set_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata) {
_cleanup_link_unref_ 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;
+ log_link_debug(link, "set link");
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",
+ if (r < 0 && r != -EEXIST) {
+ log_link_struct(link, LOG_ERR,
+ "MESSAGE=%-*s: could not join netdev: %s",
IFNAMSIZ,
link->ifname, strerror(-r),
"ERRNO=%d", -r,
NULL);
+ link_enter_failed(link);
+ return 1;
+ }
- return 1;
+ return 0;
}
-static int set_hostname_handler(sd_bus *bus, sd_bus_message *m, void *userdata, sd_bus_error *ret_error) {
+static int set_hostname_handler(sd_bus *bus, sd_bus_message *m, void *userdata,
+ sd_bus_error *ret_error) {
_cleanup_link_unref_ Link *link = userdata;
int r;
return 1;
r = sd_bus_message_get_errno(m);
- if (r < 0)
- log_warning_link(link, "Could not set hostname: %s", strerror(-r));
+ if (r > 0)
+ log_link_warning(link, "Could not set hostname: %s",
+ strerror(r));
return 1;
}
-static int link_set_hostname(Link *link, const char *hostname) {
+int link_set_hostname(Link *link, const char *hostname) {
_cleanup_bus_message_unref_ sd_bus_message *m = NULL;
int r = 0;
assert(link->manager);
assert(hostname);
- log_debug_link(link, "Setting transient hostname: '%s'", hostname);
+ log_link_debug(link, "Setting transient hostname: '%s'", hostname);
- if (!link->manager->bus) { /* TODO: replace by assert when we can rely on kdbus */
- log_info_link(link, "Not connected to system bus, ignoring transient hostname.");
+ if (!link->manager->bus) {
+ /* TODO: replace by assert when we can rely on kdbus */
+ log_link_info(link,
+ "Not connected to system bus, ignoring transient hostname.");
return 0;
}
if (r < 0)
return r;
- r = sd_bus_call_async(link->manager->bus, NULL, m, set_hostname_handler, link, 0);
+ r = sd_bus_call_async(link->manager->bus, NULL, m, set_hostname_handler,
+ link, 0);
if (r < 0) {
- log_error_link(link, "Could not set transient hostname: %s", strerror(-r));
+ log_link_error(link, "Could not set transient hostname: %s",
+ strerror(-r));
return r;
}
r = sd_rtnl_message_get_errno(m);
if (r < 0)
- log_struct_link(LOG_WARNING, link,
- "MESSAGE=%-*s: could not set MTU: %s",
- IFNAMSIZ, link->ifname, strerror(-r),
- "ERRNO=%d", -r,
- NULL);
+ log_link_warning_errno(link, -r, "%-*s: could not set MTU: %m", IFNAMSIZ, link->ifname);
return 1;
}
-static int link_set_mtu(Link *link, uint32_t mtu) {
+int link_set_mtu(Link *link, uint32_t mtu) {
_cleanup_rtnl_message_unref_ sd_rtnl_message *req = NULL;
int r;
assert(link->manager);
assert(link->manager->rtnl);
- log_debug_link(link, "setting MTU: %" PRIu32, mtu);
+ log_link_debug(link, "setting MTU: %" PRIu32, mtu);
r = sd_rtnl_message_new_link(link->manager->rtnl, &req,
RTM_SETLINK, link->ifindex);
if (r < 0) {
- log_error_link(link, "Could not allocate RTM_SETLINK message");
+ log_link_error(link, "Could not allocate RTM_SETLINK message");
return r;
}
r = sd_rtnl_message_append_u32(req, IFLA_MTU, mtu);
if (r < 0) {
- log_error_link(link, "Could not append MTU: %s", strerror(-r));
+ log_link_error(link, "Could not append MTU: %s", strerror(-r));
return r;
}
- r = sd_rtnl_call_async(link->manager->rtnl, req, set_mtu_handler, link, 0, NULL);
+ r = sd_rtnl_call_async(link->manager->rtnl, req, set_mtu_handler, link,
+ 0, NULL);
if (r < 0) {
- log_error_link(link,
- "Could not send rtnetlink message: %s", strerror(-r));
+ log_link_error(link,
+ "Could not send rtnetlink message: %s",
+ strerror(-r));
return r;
}
return 0;
}
-static int dhcp_lease_lost(Link *link) {
- _cleanup_address_free_ Address *address = NULL;
- struct in_addr addr;
- struct in_addr netmask;
- struct in_addr gateway;
- unsigned prefixlen;
+static int link_set_bridge(Link *link) {
+ _cleanup_rtnl_message_unref_ sd_rtnl_message *req = NULL;
int r;
assert(link);
- assert(link->dhcp_lease);
-
- log_warning_link(link, "DHCP lease lost");
-
- if (link->network->dhcp_routes) {
- struct sd_dhcp_route *routes;
- int n, i;
-
- n = sd_dhcp_lease_get_routes(link->dhcp_lease, &routes);
- if (n >= 0) {
- for (i = 0; i < n; i++) {
- _cleanup_route_free_ Route *route = NULL;
+ assert(link->network);
- r = route_new_dynamic(&route);
- if (r >= 0) {
- route->family = AF_INET;
- route->in_addr.in = routes[i].gw_addr;
- route->dst_addr.in = routes[i].dst_addr;
- route->dst_prefixlen = routes[i].dst_prefixlen;
+ if(link->network->cost == 0)
+ return 0;
- route_drop(route, link, &route_drop_handler);
- }
- }
- }
+ r = sd_rtnl_message_new_link(link->manager->rtnl, &req,
+ RTM_SETLINK, link->ifindex);
+ if (r < 0) {
+ log_link_error(link, "Could not allocate RTM_SETLINK message");
+ return r;
}
- r = address_new_dynamic(&address);
- if (r >= 0) {
- r = sd_dhcp_lease_get_router(link->dhcp_lease, &gateway);
- if (r >= 0) {
- _cleanup_route_free_ Route *route_gw = NULL;
- _cleanup_route_free_ Route *route = NULL;
-
- r = route_new_dynamic(&route_gw);
- if (r >= 0) {
- route_gw->family = AF_INET;
- route_gw->dst_addr.in = gateway;
- route_gw->dst_prefixlen = 32;
- route_gw->scope = RT_SCOPE_LINK;
-
- route_drop(route_gw, link, &route_drop_handler);
- }
-
- r = route_new_dynamic(&route);
- if (r >= 0) {
- route->family = AF_INET;
- route->in_addr.in = gateway;
-
- route_drop(route, link, &route_drop_handler);
- }
- }
-
- sd_dhcp_lease_get_address(link->dhcp_lease, &addr);
- sd_dhcp_lease_get_netmask(link->dhcp_lease, &netmask);
- prefixlen = net_netmask_to_prefixlen(&netmask);
-
- address->family = AF_INET;
- address->in_addr.in = addr;
- address->prefixlen = prefixlen;
-
- address_drop(address, link, &address_drop_handler);
+ r = sd_rtnl_message_link_set_family(req, PF_BRIDGE);
+ if (r < 0) {
+ log_link_error(link,
+ "Could not set message family %s", strerror(-r));
+ return r;
}
- if (link->network->dhcp_mtu) {
- uint16_t mtu;
+ r = sd_rtnl_message_open_container(req, IFLA_PROTINFO);
+ if (r < 0) {
+ log_link_error(link,
+ "Could not append IFLA_PROTINFO attribute: %s",
+ strerror(-r));
+ return r;
+ }
- r = sd_dhcp_lease_get_mtu(link->dhcp_lease, &mtu);
- if (r >= 0 && link->original_mtu != mtu) {
- r = link_set_mtu(link, link->original_mtu);
- if (r < 0) {
- log_warning_link(link, "DHCP error: could not reset MTU");
- link_enter_failed(link);
- return r;
- }
+ if(link->network->cost != 0) {
+ r = sd_rtnl_message_append_u32(req, IFLA_BRPORT_COST, link->network->cost);
+ if (r < 0) {
+ log_link_error(link,
+ "Could not append IFLA_BRPORT_COST attribute: %s",
+ strerror(-r));
+ return r;
}
}
- if (link->network->dhcp_hostname) {
- const char *hostname = NULL;
+ r = sd_rtnl_message_close_container(req);
+ if (r < 0) {
+ log_link_error(link,
+ "Could not append IFLA_LINKINFO attribute: %s",
+ strerror(-r));
+ return r;
+ }
- r = sd_dhcp_lease_get_hostname(link->dhcp_lease, &hostname);
- if (r >= 0 && hostname) {
- r = link_set_hostname(link, "");
- if (r < 0)
- log_error_link(link, "Failed to reset transient hostname");
- }
+ r = sd_rtnl_call_async(link->manager->rtnl, req, link_set_handler, link, 0, NULL);
+ if (r < 0) {
+ log_link_error(link,
+ "Could not send rtnetlink message: %s",
+ strerror(-r));
+ return r;
}
- link->dhcp_lease = sd_dhcp_lease_unref(link->dhcp_lease);
+ link_ref(link);
- return 0;
+ return r;
}
-static int dhcp_lease_renew(sd_dhcp_client *client, Link *link) {
- sd_dhcp_lease *lease;
+static void lldp_handler(sd_lldp *lldp, int event, void *userdata) {
+ Link *link = userdata;
int r;
- r = sd_dhcp_client_get_lease(client, &lease);
- if (r < 0) {
- log_warning_link(link, "DHCP error: no lease %s",
- strerror(-r));
- return r;
- }
+ assert(link);
+ assert(link->network);
+ assert(link->manager);
- sd_dhcp_lease_unref(link->dhcp_lease);
- link->dhcp_lease = lease;
+ if (event != UPDATE_INFO)
+ return;
- link_enter_set_addresses(link);
+ r = sd_lldp_save(link->lldp, link->lldp_file);
+ if (r < 0)
+ log_link_warning(link, "could not save LLDP");
- return 0;
}
-static int dhcp_lease_acquired(sd_dhcp_client *client, Link *link) {
- sd_dhcp_lease *lease;
- struct in_addr address;
- struct in_addr netmask;
- struct in_addr gateway;
- unsigned prefixlen;
+static int link_acquire_conf(Link *link) {
int r;
- assert(client);
assert(link);
+ assert(link->network);
+ assert(link->manager);
+ assert(link->manager->event);
- r = sd_dhcp_client_get_lease(client, &lease);
- if (r < 0) {
- log_warning_link(link, "DHCP error: no lease: %s",
- strerror(-r));
- return r;
- }
-
- r = sd_dhcp_lease_get_address(lease, &address);
- if (r < 0) {
- log_warning_link(link, "DHCP error: no address: %s",
- strerror(-r));
- return r;
- }
-
- r = sd_dhcp_lease_get_netmask(lease, &netmask);
- if (r < 0) {
- log_warning_link(link, "DHCP error: no netmask: %s",
- strerror(-r));
- return r;
- }
-
- prefixlen = net_netmask_to_prefixlen(&netmask);
-
- r = sd_dhcp_lease_get_router(lease, &gateway);
- if (r < 0 && r != -ENOENT) {
- log_warning_link(link, "DHCP error: could not get gateway: %s",
- strerror(-r));
- return r;
- }
-
- if (r >= 0)
- log_struct_link(LOG_INFO, link,
- "MESSAGE=%-*s: DHCPv4 address %u.%u.%u.%u/%u via %u.%u.%u.%u",
- IFNAMSIZ,
- link->ifname,
- ADDRESS_FMT_VAL(address),
- prefixlen,
- ADDRESS_FMT_VAL(gateway),
- "ADDRESS=%u.%u.%u.%u",
- ADDRESS_FMT_VAL(address),
- "PREFIXLEN=%u",
- prefixlen,
- "GATEWAY=%u.%u.%u.%u",
- ADDRESS_FMT_VAL(gateway),
- NULL);
- else
- log_struct_link(LOG_INFO, link,
- "MESSAGE=%-*s: DHCPv4 address %u.%u.%u.%u/%u",
- IFNAMSIZ,
- link->ifname,
- ADDRESS_FMT_VAL(address),
- prefixlen,
- "ADDRESS=%u.%u.%u.%u",
- ADDRESS_FMT_VAL(address),
- "PREFIXLEN=%u",
- prefixlen,
- NULL);
-
- link->dhcp_lease = lease;
-
- if (link->network->dhcp_mtu) {
- uint16_t mtu;
-
- r = sd_dhcp_lease_get_mtu(lease, &mtu);
- if (r >= 0) {
- r = link_set_mtu(link, mtu);
- if (r < 0)
- log_error_link(link, "Failed to set MTU "
- "to %" PRIu16, mtu);
- }
- }
+ if (link_ipv4ll_enabled(link)) {
+ assert(link->ipv4ll);
- if (link->network->dhcp_hostname) {
- const char *hostname;
+ log_link_debug(link, "acquiring IPv4 link-local address");
- r = sd_dhcp_lease_get_hostname(lease, &hostname);
- if (r >= 0) {
- r = link_set_hostname(link, hostname);
- if (r < 0)
- log_error_link(link, "Failed to set transient hostname "
- "to '%s'", hostname);
+ r = sd_ipv4ll_start(link->ipv4ll);
+ if (r < 0) {
+ log_link_warning(link, "could not acquire IPv4 "
+ "link-local address");
+ return r;
}
}
- link_enter_set_addresses(link);
-
- return 0;
-}
-
-static void dhcp_handler(sd_dhcp_client *client, int event, void *userdata) {
- Link *link = userdata;
- int r = 0;
-
- assert(link);
- assert(link->network);
- assert(link->manager);
-
- if (IN_SET(link->state, LINK_STATE_FAILED, LINK_STATE_LINGER))
- return;
-
- switch (event) {
- case DHCP_EVENT_NO_LEASE:
- log_debug_link(link, "IP address in use.");
- break;
- case DHCP_EVENT_EXPIRED:
- case DHCP_EVENT_STOP:
- case DHCP_EVENT_IP_CHANGE:
- if (link->network->dhcp_critical) {
- log_error_link(link, "DHCPv4 connection considered system critical, "
- "ignoring request to reconfigure it.");
- return;
- }
-
- if (link->dhcp_lease) {
- r = dhcp_lease_lost(link);
- if (r < 0) {
- link_enter_failed(link);
- return;
- }
- }
-
- if (event == DHCP_EVENT_IP_CHANGE) {
- r = dhcp_lease_acquired(client, link);
- if (r < 0) {
- link_enter_failed(link);
- return;
- }
- }
-
- if (event == DHCP_EVENT_EXPIRED && link->network->ipv4ll) {
- if (!sd_ipv4ll_is_running(link->ipv4ll))
- r = sd_ipv4ll_start(link->ipv4ll);
- else if (ipv4ll_is_bound(link->ipv4ll))
- r = ipv4ll_address_update(link, false);
- if (r < 0) {
- link_enter_failed(link);
- return;
- }
- }
-
- break;
- case DHCP_EVENT_RENEW:
- r = dhcp_lease_renew(client, link);
- if (r < 0) {
- link_enter_failed(link);
- return;
- }
- break;
- case DHCP_EVENT_IP_ACQUIRE:
- r = dhcp_lease_acquired(client, link);
- if (r < 0) {
- link_enter_failed(link);
- return;
- }
- if (link->ipv4ll) {
- if (ipv4ll_is_bound(link->ipv4ll))
- r = ipv4ll_address_update(link, true);
- else
- r = sd_ipv4ll_stop(link->ipv4ll);
- if (r < 0) {
- link_enter_failed(link);
- return;
- }
- }
- break;
- default:
- if (event < 0)
- log_warning_link(link, "DHCP error: client failed: %s", strerror(-event));
- else
- log_warning_link(link, "DHCP unknown event: %d", event);
- break;
- }
-
- return;
-}
-
-static int ipv4ll_address_update(Link *link, bool deprecate) {
- int r;
- struct in_addr addr;
-
- assert(link);
-
- r = sd_ipv4ll_get_address(link->ipv4ll, &addr);
- if (r >= 0) {
- _cleanup_address_free_ Address *address = NULL;
+ if (link_dhcp4_enabled(link)) {
+ assert(link->dhcp_client);
- log_debug_link(link, "IPv4 link-local %s %u.%u.%u.%u",
- deprecate ? "deprecate" : "approve",
- ADDRESS_FMT_VAL(addr));
+ log_link_debug(link, "acquiring DHCPv4 lease");
- r = address_new_dynamic(&address);
+ r = sd_dhcp_client_start(link->dhcp_client);
if (r < 0) {
- log_error_link(link, "Could not allocate address: %s", strerror(-r));
+ log_link_warning(link, "could not acquire DHCPv4 "
+ "lease");
return r;
}
-
- address->family = AF_INET;
- address->in_addr.in = addr;
- address->prefixlen = 16;
- address->scope = RT_SCOPE_LINK;
- address->cinfo.ifa_prefered = deprecate ? 0 : CACHE_INFO_INFINITY_LIFE_TIME;
- address->broadcast.s_addr = address->in_addr.in.s_addr | htonl(0xfffffffflu >> address->prefixlen);
-
- address_update(address, link, &address_update_handler);
}
- return 0;
-
-}
-
-static int ipv4ll_address_lost(Link *link) {
- int r;
- struct in_addr addr;
-
- assert(link);
-
- r = sd_ipv4ll_get_address(link->ipv4ll, &addr);
- if (r >= 0) {
- _cleanup_address_free_ Address *address = NULL;
- _cleanup_route_free_ Route *route = NULL;
+ if (link_dhcp6_enabled(link)) {
+ assert(link->icmp6_router_discovery);
- log_debug_link(link, "IPv4 link-local release %u.%u.%u.%u",
- ADDRESS_FMT_VAL(addr));
+ log_link_debug(link, "discovering IPv6 routers");
- r = address_new_dynamic(&address);
+ r = sd_icmp6_router_solicitation_start(link->icmp6_router_discovery);
if (r < 0) {
- log_error_link(link, "Could not allocate address: %s", strerror(-r));
+ log_link_warning(link,
+ "could not start IPv6 router discovery");
return r;
}
+ }
- address->family = AF_INET;
- address->in_addr.in = addr;
- address->prefixlen = 16;
- address->scope = RT_SCOPE_LINK;
+ if (link_lldp_enabled(link)) {
+ assert(link->lldp);
- address_drop(address, link, &address_drop_handler);
+ log_link_debug(link, "Starting LLDP");
- r = route_new_dynamic(&route);
+ r = sd_lldp_start(link->lldp);
if (r < 0) {
- log_error_link(link, "Could not allocate route: %s",
- strerror(-r));
+ log_link_warning(link, "could not start LLDP ");
return r;
}
-
- route->family = AF_INET;
- route->scope = RT_SCOPE_LINK;
- route->metrics = 99;
-
- route_drop(route, link, &route_drop_handler);
}
return 0;
}
-static bool ipv4ll_is_bound(sd_ipv4ll *ll) {
- int r;
- struct in_addr addr;
-
- assert(ll);
-
- r = sd_ipv4ll_get_address(ll, &addr);
- if (r < 0)
- return false;
- return true;
-}
-
-static int ipv4ll_address_claimed(sd_ipv4ll *ll, Link *link) {
- struct in_addr address;
- int r;
-
- assert(ll);
- assert(link);
-
- r = sd_ipv4ll_get_address(ll, &address);
- if (r < 0)
- return r;
+bool link_has_carrier(Link *link) {
+ /* see Documentation/networking/operstates.txt in the kernel sources */
- log_struct_link(LOG_INFO, link,
- "MESSAGE=%-*s: IPv4 link-local address %u.%u.%u.%u",
- IFNAMSIZ,
- link->ifname,
- ADDRESS_FMT_VAL(address),
- NULL);
+ if (link->kernel_operstate == IF_OPER_UP)
+ return true;
- link_enter_set_addresses(link);
+ if (link->kernel_operstate == IF_OPER_UNKNOWN)
+ /* operstate may not be implemented, so fall back to flags */
+ if ((link->flags & IFF_LOWER_UP) && !(link->flags & IFF_DORMANT))
+ return true;
- return 0;
+ return false;
}
-static void ipv4ll_handler(sd_ipv4ll *ll, int event, void *userdata){
- Link *link = userdata;
+static int link_up_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata) {
+ _cleanup_link_unref_ Link *link = userdata;
int r;
assert(link);
- assert(link->network);
- assert(link->manager);
if (IN_SET(link->state, LINK_STATE_FAILED, LINK_STATE_LINGER))
- return;
+ return 1;
- switch(event) {
- case IPV4LL_EVENT_STOP:
- case IPV4LL_EVENT_CONFLICT:
- r = ipv4ll_address_lost(link);
- if (r < 0) {
- link_enter_failed(link);
- return;
- }
- break;
- case IPV4LL_EVENT_BIND:
- r = ipv4ll_address_claimed(ll, link);
- if (r < 0) {
- link_enter_failed(link);
- return;
- }
- break;
- default:
- if (event < 0)
- log_warning_link(link, "IPv4 link-local error: %s", strerror(-event));
- else
- log_warning_link(link, "IPv4 link-local unknown event: %d", event);
- break;
+ r = sd_rtnl_message_get_errno(m);
+ if (r < 0) {
+ /* we warn but don't fail the link, as it may
+ be brought up later */
+ log_link_warning_errno(link, -r, "%-*s: could not bring up interface: %m", IFNAMSIZ, link->ifname);
}
-}
-static void dhcp6_handler(sd_dhcp6_client *client, int event, void *userdata) {
- Link *link = userdata;
-
- assert(link);
- assert(link->network);
- assert(link->manager);
-
- if (IN_SET(link->state, LINK_STATE_FAILED, LINK_STATE_LINGER))
- return;
-
- switch(event) {
- case DHCP6_EVENT_STOP:
- case DHCP6_EVENT_RESEND_EXPIRE:
- case DHCP6_EVENT_RETRANS_MAX:
- case DHCP6_EVENT_IP_ACQUIRE:
- log_debug_link(link, "DHCPv6 event %d", event);
-
- break;
-
- default:
- if (event < 0)
- log_warning_link(link, "DHCPv6 error: %s",
- strerror(-event));
- else
- log_warning_link(link, "DHCPv6 unknown event: %d",
- event);
- return;
- }
+ return 1;
}
-static void icmp6_router_handler(sd_icmp6_nd *nd, int event, void *userdata) {
- Link *link = userdata;
+static int link_up(Link *link) {
+ _cleanup_rtnl_message_unref_ sd_rtnl_message *req = NULL;
+ uint8_t ipv6ll_mode;
int r;
assert(link);
assert(link->network);
assert(link->manager);
+ assert(link->manager->rtnl);
- if (IN_SET(link->state, LINK_STATE_FAILED, LINK_STATE_LINGER))
- return;
-
- switch(event) {
- case ICMP6_EVENT_ROUTER_ADVERTISMENT_NONE:
- case ICMP6_EVENT_ROUTER_ADVERTISMENT_OTHER:
- return;
-
- case ICMP6_EVENT_ROUTER_ADVERTISMENT_TIMEOUT:
- case ICMP6_EVENT_ROUTER_ADVERTISMENT_MANAGED:
- break;
-
- default:
- if (event < 0)
- log_warning_link(link, "ICMPv6 error: %s",
- strerror(-event));
- else
- log_warning_link(link, "ICMPv6 unknown event: %d",
- event);
-
- return;
- }
-
- if (link->dhcp6_client)
- return;
-
- r = sd_dhcp6_client_new(&link->dhcp6_client);
- if (r < 0)
- return;
-
- r = sd_dhcp6_client_attach_event(link->dhcp6_client, NULL, 0);
- if (r < 0) {
- link->dhcp6_client = sd_dhcp6_client_unref(link->dhcp6_client);
- return;
- }
-
- r = sd_dhcp6_client_set_mac(link->dhcp6_client, &link->mac);
- if (r < 0) {
- link->dhcp6_client = sd_dhcp6_client_unref(link->dhcp6_client);
- return;
- }
+ log_link_debug(link, "bringing link up");
- r = sd_dhcp6_client_set_index(link->dhcp6_client, link->ifindex);
+ r = sd_rtnl_message_new_link(link->manager->rtnl, &req,
+ RTM_SETLINK, link->ifindex);
if (r < 0) {
- link->dhcp6_client = sd_dhcp6_client_unref(link->dhcp6_client);
- return;
+ log_link_error(link, "Could not allocate RTM_SETLINK message");
+ return r;
}
- r = sd_dhcp6_client_set_callback(link->dhcp6_client, dhcp6_handler,
- link);
+ r = sd_rtnl_message_link_set_flags(req, IFF_UP, IFF_UP);
if (r < 0) {
- link->dhcp6_client = sd_dhcp6_client_unref(link->dhcp6_client);
- return;
+ log_link_error(link, "Could not set link flags: %s",
+ strerror(-r));
+ return r;
}
- r = sd_dhcp6_client_start(link->dhcp6_client);
- if (r < 0)
- link->dhcp6_client = sd_dhcp6_client_unref(link->dhcp6_client);
-}
-
-static int link_acquire_conf(Link *link) {
- int r;
-
- assert(link);
- assert(link->network);
- assert(link->manager);
- assert(link->manager->event);
-
- if (link->network->ipv4ll) {
- assert(link->ipv4ll);
-
- log_debug_link(link, "acquiring IPv4 link-local address");
-
- r = sd_ipv4ll_start(link->ipv4ll);
+ if (link->network->mac) {
+ r = sd_rtnl_message_append_ether_addr(req, IFLA_ADDRESS, link->network->mac);
if (r < 0) {
- log_warning_link(link, "could not acquire IPv4 "
- "link-local address");
+ log_link_error(link, "Could not set MAC address: %s", strerror(-r));
return r;
}
}
- if (IN_SET(link->network->dhcp, DHCP_SUPPORT_BOTH, DHCP_SUPPORT_V4)) {
- assert(link->dhcp_client);
-
- log_debug_link(link, "acquiring DHCPv4 lease");
-
- r = sd_dhcp_client_start(link->dhcp_client);
+ if (link->network->mtu) {
+ r = sd_rtnl_message_append_u32(req, IFLA_MTU, link->network->mtu);
if (r < 0) {
- log_warning_link(link, "could not acquire DHCPv4 "
- "lease");
+ log_link_error(link, "Could not set MTU: %s", strerror(-r));
return r;
}
}
- if (IN_SET(link->network->dhcp, DHCP_SUPPORT_BOTH, DHCP_SUPPORT_V6)) {
- assert(link->icmp6_router_discovery);
-
- log_debug_link(link, "discovering IPv6 routers");
-
- r = sd_icmp6_router_solicitation_start(link->icmp6_router_discovery);
- if (r < 0) {
- log_warning_link(link, "could not start IPv6 router discovery");
- return r;
- }
+ r = sd_rtnl_message_open_container(req, IFLA_AF_SPEC);
+ if (r < 0) {
+ log_link_error(link, "Could not open IFLA_AF_SPEC container: %s", strerror(-r));
+ return r;
}
- return 0;
-}
-
-bool link_has_carrier(unsigned flags, uint8_t operstate) {
- /* see Documentation/networking/operstates.txt in the kernel sources */
-
- if (operstate == IF_OPER_UP)
- return true;
-
- if (operstate == IF_OPER_UNKNOWN)
- /* operstate may not be implemented, so fall back to flags */
- if ((flags & IFF_LOWER_UP) && !(flags & IFF_DORMANT))
- return true;
-
- return false;
-}
-
-#define FLAG_STRING(string, flag, old, new) \
- (((old ^ new) & flag) \
- ? ((old & flag) ? (" -" string) : (" +" string)) \
- : "")
-
-static int link_update_flags(Link *link, sd_rtnl_message *m) {
- unsigned flags, unknown_flags_added, unknown_flags_removed, unknown_flags;
- uint8_t operstate;
- bool carrier_gained = false, carrier_lost = false;
- int r;
-
- assert(link);
-
- r = sd_rtnl_message_link_get_flags(m, &flags);
+ r = sd_rtnl_message_open_container(req, AF_INET6);
if (r < 0) {
- log_warning_link(link, "Could not get link flags");
+ log_link_error(link, "Could not open AF_INET6 container: %s", strerror(-r));
return r;
}
- r = sd_rtnl_message_read_u8(m, IFLA_OPERSTATE, &operstate);
- if (r < 0)
- /* if we got a message without operstate, take it to mean
- the state was unchanged */
- operstate = link->kernel_operstate;
-
- if ((link->flags == flags) && (link->kernel_operstate == operstate))
- return 0;
-
- if (link->flags != flags) {
- log_debug_link(link, "flags change:%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s",
- FLAG_STRING("LOOPBACK", IFF_LOOPBACK, link->flags, flags),
- FLAG_STRING("MASTER", IFF_MASTER, link->flags, flags),
- FLAG_STRING("SLAVE", IFF_SLAVE, link->flags, flags),
- FLAG_STRING("UP", IFF_UP, link->flags, flags),
- FLAG_STRING("DORMANT", IFF_DORMANT, link->flags, flags),
- FLAG_STRING("LOWER_UP", IFF_LOWER_UP, link->flags, flags),
- FLAG_STRING("RUNNING", IFF_RUNNING, link->flags, flags),
- FLAG_STRING("MULTICAST", IFF_MULTICAST, link->flags, flags),
- FLAG_STRING("BROADCAST", IFF_BROADCAST, link->flags, flags),
- FLAG_STRING("POINTOPOINT", IFF_POINTOPOINT, link->flags, flags),
- FLAG_STRING("PROMISC", IFF_PROMISC, link->flags, flags),
- FLAG_STRING("ALLMULTI", IFF_ALLMULTI, link->flags, flags),
- FLAG_STRING("PORTSEL", IFF_PORTSEL, link->flags, flags),
- FLAG_STRING("AUTOMEDIA", IFF_AUTOMEDIA, link->flags, flags),
- FLAG_STRING("DYNAMIC", IFF_DYNAMIC, link->flags, flags),
- FLAG_STRING("NOARP", IFF_NOARP, link->flags, flags),
- FLAG_STRING("NOTRAILERS", IFF_NOTRAILERS, link->flags, flags),
- FLAG_STRING("DEBUG", IFF_DEBUG, link->flags, flags),
- FLAG_STRING("ECHO", IFF_ECHO, link->flags, flags));
-
- unknown_flags = ~(IFF_LOOPBACK | IFF_MASTER | IFF_SLAVE | IFF_UP |
- IFF_DORMANT | IFF_LOWER_UP | IFF_RUNNING |
- IFF_MULTICAST | IFF_BROADCAST | IFF_POINTOPOINT |
- IFF_PROMISC | IFF_ALLMULTI | IFF_PORTSEL |
- IFF_AUTOMEDIA | IFF_DYNAMIC | IFF_NOARP |
- IFF_NOTRAILERS | IFF_DEBUG | IFF_ECHO);
- unknown_flags_added = ((link->flags ^ flags) & flags & unknown_flags);
- unknown_flags_removed = ((link->flags ^ flags) & link->flags & unknown_flags);
-
- /* link flags are currently at most 18 bits, let's align to printing 20 */
- if (unknown_flags_added)
- log_debug_link(link, "unknown link flags gained: %#.5x (ignoring)",
- unknown_flags_added);
-
- if (unknown_flags_removed)
- log_debug_link(link, "unknown link flags lost: %#.5x (ignoring)",
- unknown_flags_removed);
+ ipv6ll_mode = link_ipv6ll_enabled(link) ? IN6_ADDR_GEN_MODE_EUI64 : IN6_ADDR_GEN_MODE_NONE;
+ r = sd_rtnl_message_append_u8(req, IFLA_INET6_ADDR_GEN_MODE, ipv6ll_mode);
+ if (r < 0) {
+ log_link_error(link, "Could not append IFLA_INET6_ADDR_GEN_MODE: %s", strerror(-r));
+ return r;
}
- carrier_gained = !link_has_carrier(link->flags, link->kernel_operstate) &&
- link_has_carrier(flags, operstate);
- carrier_lost = link_has_carrier(link->flags, link->kernel_operstate) &&
- !link_has_carrier(flags, operstate);
-
- link->flags = flags;
- link->kernel_operstate = operstate;
-
- link_save(link);
-
- if (link->state == LINK_STATE_FAILED ||
- link->state == LINK_STATE_UNMANAGED)
- return 0;
-
- if (carrier_gained) {
- log_info_link(link, "gained carrier");
-
- if (link->network) {
- r = link_acquire_conf(link);
- if (r < 0) {
- link_enter_failed(link);
- return r;
- }
- }
- } else if (carrier_lost) {
- log_info_link(link, "lost carrier");
-
- r = link_stop_clients(link);
+ if (!in_addr_is_null(AF_INET6, &link->network->ipv6_token)) {
+ r = sd_rtnl_message_append_in6_addr(req, IFLA_INET6_TOKEN, &link->network->ipv6_token.in6);
if (r < 0) {
- link_enter_failed(link);
+ log_link_error(link, "Could not append IFLA_INET6_TOKEN: %s", strerror(-r));
return r;
}
}
- return 0;
-}
-
-static int link_up_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata) {
- _cleanup_link_unref_ Link *link = userdata;
- int r;
-
- assert(link);
-
- if (IN_SET(link->state, LINK_STATE_FAILED, LINK_STATE_LINGER))
- return 1;
-
- r = sd_rtnl_message_get_errno(m);
- if (r < 0) {
- /* 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",
- IFNAMSIZ,
- link->ifname, strerror(-r),
- "ERRNO=%d", -r,
- NULL);
- }
-
- return 1;
-}
-
-static int link_up(Link *link) {
- _cleanup_rtnl_message_unref_ sd_rtnl_message *req = NULL;
- int r;
-
- assert(link);
- assert(link->manager);
- assert(link->manager->rtnl);
-
- log_debug_link(link, "bringing link up");
-
- r = sd_rtnl_message_new_link(link->manager->rtnl, &req,
- RTM_SETLINK, link->ifindex);
+ r = sd_rtnl_message_close_container(req);
if (r < 0) {
- log_error_link(link, "Could not allocate RTM_SETLINK message");
+ log_link_error(link, "Could not close AF_INET6 container: %s", strerror(-r));
return r;
}
- r = sd_rtnl_message_link_set_flags(req, IFF_UP, IFF_UP);
+ r = sd_rtnl_message_close_container(req);
if (r < 0) {
- log_error_link(link, "Could not set link flags: %s", strerror(-r));
+ log_link_error(link, "Could not close IFLA_AF_SPEC container: %s", strerror(-r));
return r;
}
- r = sd_rtnl_call_async(link->manager->rtnl, req, link_up_handler, link, 0, NULL);
+ r = sd_rtnl_call_async(link->manager->rtnl, req, link_up_handler, link,
+ 0, NULL);
if (r < 0) {
- log_error_link(link,
- "Could not send rtnetlink message: %s", strerror(-r));
+ log_link_error(link,
+ "Could not send rtnetlink message: %s",
+ strerror(-r));
return r;
}
int r;
assert(link);
- assert(link->state == LINK_STATE_ENSLAVING);
assert(link->network);
- log_debug_link(link, "joined netdev");
-
if (!(link->flags & IFF_UP)) {
r = link_up(link);
if (r < 0) {
}
}
+ if(link->network->bridge) {
+ r = link_set_bridge(link);
+ if (r < 0) {
+ log_link_error(link,
+ "Could not set bridge message: %s",
+ strerror(-r));
+ }
+ }
+
return link_enter_set_addresses(link);
}
-static int netdev_join_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata) {
+static int netdev_join_handler(sd_rtnl *rtnl, sd_rtnl_message *m,
+ void *userdata) {
_cleanup_link_unref_ Link *link = userdata;
int r;
assert(link);
- assert(IN_SET(link->state, LINK_STATE_ENSLAVING, LINK_STATE_FAILED,
- LINK_STATE_LINGER));
assert(link->network);
link->enslaving --;
r = sd_rtnl_message_get_errno(m);
if (r < 0 && r != -EEXIST) {
- log_struct_link(LOG_ERR, link,
- "MESSAGE=%-*s: could not join netdev: %s",
- IFNAMSIZ,
- link->ifname, strerror(-r),
- "ERRNO=%d", -r,
- NULL);
+ log_link_error_errno(link, -r, "%-*s: could not join netdev: %m", IFNAMSIZ, link->ifname);
link_enter_failed(link);
return 1;
- }
+ } else
+ log_link_debug(link, "joined netdev");
if (link->enslaving <= 0)
link_joined(link);
}
static int link_enter_join_netdev(Link *link) {
- NetDev *vlan, *macvlan, *vxlan;
+ NetDev *netdev;
Iterator i;
int r;
assert(link);
assert(link->network);
- assert(link->state == LINK_STATE_INITIALIZING);
+ assert(link->state == LINK_STATE_PENDING);
- link->state = LINK_STATE_ENSLAVING;
+ link_set_state(link, LINK_STATE_ENSLAVING);
link_save(link);
- if (!link->network->bridge &&
- !link->network->bond &&
- !link->network->tunnel &&
- hashmap_isempty(link->network->vlans) &&
- hashmap_isempty(link->network->macvlans) &&
- hashmap_isempty(link->network->vxlans))
- return link_joined(link);
-
- if (link->network->bond) {
- log_struct_link(LOG_DEBUG, link,
- "MESSAGE=%-*s: enslaving by '%s'",
- IFNAMSIZ,
- link->ifname, link->network->bond->ifname,
- NETDEV(link->network->bond),
- NULL);
-
- r = netdev_join(link->network->bond, link, &netdev_join_handler);
- if (r < 0) {
- log_struct_link(LOG_WARNING, link,
- "MESSAGE=%-*s: could not join netdev '%s': %s",
- IFNAMSIZ,
- link->ifname, link->network->bond->ifname, strerror(-r),
- NETDEV(link->network->bond),
- NULL);
- link_enter_failed(link);
- return r;
- }
-
- link->enslaving ++;
- }
-
- if (link->network->bridge) {
- log_struct_link(LOG_DEBUG, link,
- "MESSAGE=%-*s: enslaving by '%s'",
- IFNAMSIZ,
- link->ifname, link->network->bridge->ifname,
- NETDEV(link->network->bridge),
- NULL);
-
- r = netdev_join(link->network->bridge, link, &netdev_join_handler);
- if (r < 0) {
- log_struct_link(LOG_WARNING, link,
- "MESSAGE=%-*s: could not join netdev '%s': %s",
- IFNAMSIZ,
- link->ifname, link->network->bridge->ifname, strerror(-r),
- NETDEV(link->network->bridge),
- NULL);
- link_enter_failed(link);
- return r;
- }
-
- link->enslaving ++;
- }
-
- if (link->network->tunnel) {
- log_struct_link(LOG_DEBUG, link,
+ if (!link->network->bridge &&
+ !link->network->bond &&
+ hashmap_isempty(link->network->stacked_netdevs))
+ return link_joined(link);
+
+ if (link->network->bond) {
+ log_link_struct(link, LOG_DEBUG,
"MESSAGE=%-*s: enslaving by '%s'",
IFNAMSIZ,
- link->ifname, link->network->tunnel->ifname,
- NETDEV(link->network->tunnel),
+ link->ifname, link->network->bond->ifname,
+ NETDEVIF(link->network->bond),
NULL);
- r = netdev_join(link->network->tunnel, link, &netdev_join_handler);
+ r = netdev_join(link->network->bond, link, &netdev_join_handler);
if (r < 0) {
- log_struct_link(LOG_WARNING, link,
+ log_link_struct(link, LOG_WARNING,
"MESSAGE=%-*s: could not join netdev '%s': %s",
IFNAMSIZ,
- link->ifname, link->network->tunnel->ifname, strerror(-r),
- NETDEV(link->network->tunnel),
+ link->ifname, link->network->bond->ifname,
+ strerror(-r),
+ NETDEVIF(link->network->bond),
NULL);
link_enter_failed(link);
return r;
link->enslaving ++;
}
- HASHMAP_FOREACH(vlan, link->network->vlans, i) {
- log_struct_link(LOG_DEBUG, link,
+ if (link->network->bridge) {
+ log_link_struct(link, LOG_DEBUG,
"MESSAGE=%-*s: enslaving by '%s'",
IFNAMSIZ,
- link->ifname, vlan->ifname, NETDEV(vlan), NULL);
+ link->ifname, link->network->bridge->ifname,
+ NETDEVIF(link->network->bridge),
+ NULL);
- r = netdev_join(vlan, link, &netdev_join_handler);
+ r = netdev_join(link->network->bridge, link,
+ &netdev_join_handler);
if (r < 0) {
- log_struct_link(LOG_WARNING, link,
+ log_link_struct(link, LOG_WARNING,
"MESSAGE=%-*s: could not join netdev '%s': %s",
IFNAMSIZ,
- link->ifname, vlan->ifname, strerror(-r),
- NETDEV(vlan), NULL);
+ link->ifname, link->network->bridge->ifname,
+ strerror(-r),
+ NETDEVIF(link->network->bridge),
+ NULL);
link_enter_failed(link);
return r;
}
link->enslaving ++;
}
- HASHMAP_FOREACH(macvlan, link->network->macvlans, i) {
- log_struct_link(LOG_DEBUG, link,
+ HASHMAP_FOREACH(netdev, link->network->stacked_netdevs, i) {
+ log_link_struct(link, LOG_DEBUG,
"MESSAGE=%-*s: enslaving by '%s'",
IFNAMSIZ,
- link->ifname, macvlan->ifname, NETDEV(macvlan), NULL);
+ link->ifname, netdev->ifname, NETDEVIF(netdev),
+ NULL);
- r = netdev_join(macvlan, link, &netdev_join_handler);
+ r = netdev_join(netdev, link, &netdev_join_handler);
if (r < 0) {
- log_struct_link(LOG_WARNING, link,
+ log_link_struct(link, LOG_WARNING,
"MESSAGE=%-*s: could not join netdev '%s': %s",
IFNAMSIZ,
- link->ifname, macvlan->ifname, strerror(-r),
- NETDEV(macvlan), NULL);
- link_enter_failed(link);
- return r;
- }
-
- 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_join(vxlan, link, &netdev_join_handler);
- if (r < 0) {
- log_struct_link(LOG_WARNING, link,
- "MESSAGE=%*s: could not join netdev '%s': %s",
- IFNAMSIZ,
- link->ifname, vxlan->ifname, strerror(-r),
- NETDEV(vxlan), NULL);
+ link->ifname, netdev->ifname,
+ strerror(-r),
+ NETDEVIF(netdev), NULL);
link_enter_failed(link);
return r;
}
return 0;
}
-static int link_configure(Link *link) {
+static int link_set_ipv4_forward(Link *link) {
+ const char *p = NULL;
+ bool b;
int r;
- assert(link);
- assert(link->state == LINK_STATE_INITIALIZING);
-
- if (link->network->ipv4ll) {
- uint8_t seed[8];
+ b = link_ipv4_forward_enabled(link);
- r = sd_ipv4ll_new(&link->ipv4ll);
+ p = strjoina("/proc/sys/net/ipv4/conf/", link->ifname, "/forwarding");
+ r = write_string_file_no_create(p, one_zero(b));
+ if (r < 0)
+ log_link_warning_errno(link, r, "Cannot configure IPv4 forwarding for interface %s: %m", link->ifname);
+
+ if (b) {
+ _cleanup_free_ char *buf = NULL;
+
+ /* If IP forwarding is turned on for this interface,
+ * then propagate this to the global setting. Given
+ * that turning this on has side-effects on other
+ * fields, we'll try to avoid doing this unless
+ * necessary, hence check the previous value
+ * first. Note that we never turn this option off
+ * again, since all interfaces we manage do not do
+ * forwarding anyway by default, and ownership rules
+ * of this control are so unclear. */
+
+ r = read_one_line_file("/proc/sys/net/ipv4/ip_forward", &buf);
if (r < 0)
- return r;
-
- if (link->udev_device) {
- r = net_get_unique_predictable_data(link->udev_device, seed);
- if (r >= 0) {
- r = sd_ipv4ll_set_address_seed(link->ipv4ll, seed);
- if (r < 0)
- return r;
- }
+ log_link_warning_errno(link, r, "Cannot read /proc/sys/net/ipv4/ip_forward: %m");
+ else if (!streq(buf, "1")) {
+ r = write_string_file_no_create("/proc/sys/net/ipv4/ip_forward", "1");
+ if (r < 0)
+ log_link_warning_errno(link, r, "Cannot write /proc/sys/net/ipv4/ip_forward: %m");
}
+ }
- r = sd_ipv4ll_attach_event(link->ipv4ll, NULL, 0);
- if (r < 0)
- return r;
+ return 0;
+}
- r = sd_ipv4ll_set_mac(link->ipv4ll, &link->mac);
- if (r < 0)
- return r;
+static int link_set_ipv6_forward(Link *link) {
+ const char *p = NULL;
+ int r;
- r = sd_ipv4ll_set_index(link->ipv4ll, link->ifindex);
- if (r < 0)
- return r;
+ p = strjoina("/proc/sys/net/ipv6/conf/", link->ifname, "/forwarding");
+ r = write_string_file_no_create(p, one_zero(link_ipv6_forward_enabled(link)));
+ if (r < 0)
+ log_link_warning_errno(link, r, "Cannot configure IPv6 forwarding for interface: %m");
- r = sd_ipv4ll_set_callback(link->ipv4ll, ipv4ll_handler, link);
- if (r < 0)
- return r;
- }
+ return 0;
+}
- if (IN_SET(link->network->dhcp, DHCP_SUPPORT_BOTH, DHCP_SUPPORT_V4)) {
- r = sd_dhcp_client_new(&link->dhcp_client);
- if (r < 0)
- return r;
+static int link_configure(Link *link) {
+ int r;
- r = sd_dhcp_client_attach_event(link->dhcp_client, NULL, 0);
- if (r < 0)
- return r;
+ assert(link);
+ assert(link->network);
+ assert(link->state == LINK_STATE_PENDING);
- r = sd_dhcp_client_set_mac(link->dhcp_client, &link->mac);
- if (r < 0)
- return r;
+ r = link_set_bridge_fdb(link);
+ if (r < 0)
+ return r;
- r = sd_dhcp_client_set_index(link->dhcp_client, link->ifindex);
- if (r < 0)
- return r;
+ r = link_set_ipv4_forward(link);
+ if (r < 0)
+ return r;
+
+ r = link_set_ipv6_forward(link);
+ if (r < 0)
+ return r;
- r = sd_dhcp_client_set_callback(link->dhcp_client, dhcp_handler, link);
+ if (link_ipv4ll_enabled(link)) {
+ r = ipv4ll_configure(link);
if (r < 0)
return r;
+ }
- r = sd_dhcp_client_set_request_broadcast(link->dhcp_client, link->network->dhcp_broadcast);
+ if (link_dhcp4_enabled(link)) {
+ r = dhcp4_configure(link);
if (r < 0)
return r;
-
- if (link->network->dhcp_mtu) {
- r = sd_dhcp_client_set_request_option(link->dhcp_client, 26);
- if (r < 0)
- return r;
- }
-
- if (link->network->dhcp_routes) {
- r = sd_dhcp_client_set_request_option(link->dhcp_client, DHCP_OPTION_STATIC_ROUTE);
- if (r < 0)
- return r;
- r = sd_dhcp_client_set_request_option(link->dhcp_client, DHCP_OPTION_CLASSLESS_STATIC_ROUTE);
- if (r < 0)
- return r;
- }
-
- if (link->network->dhcp_sendhost) {
- _cleanup_free_ char *hostname = gethostname_malloc();
- if (!hostname)
- return -ENOMEM;
-
- if (!is_localhost(hostname)) {
- r = sd_dhcp_client_set_hostname(link->dhcp_client, hostname);
- if (r < 0)
- return r;
- }
- }
-
- if (link->network->dhcp_vendor_class_identifier) {
- r = sd_dhcp_client_set_vendor_class_identifier(link->dhcp_client,
- link->network->dhcp_vendor_class_identifier);
- if (r < 0)
- return r;
- }
}
- if (link->network->dhcp_server) {
+ if (link_dhcp4_server_enabled(link)) {
r = sd_dhcp_server_new(&link->dhcp_server, link->ifindex);
if (r < 0)
return r;
return r;
}
- if (IN_SET(link->network->dhcp, DHCP_SUPPORT_BOTH, DHCP_SUPPORT_V6)) {
- r = sd_icmp6_nd_new(&link->icmp6_router_discovery);
- if (r < 0)
- return r;
-
- r = sd_icmp6_nd_attach_event(link->icmp6_router_discovery,
- NULL, 0);
+ if (link_dhcp6_enabled(link)) {
+ r = icmp6_configure(link);
if (r < 0)
return r;
+ }
- r = sd_icmp6_nd_set_mac(link->icmp6_router_discovery,
- &link->mac);
+ if (link_lldp_enabled(link)) {
+ r = sd_lldp_new(link->ifindex, link->ifname, &link->mac, &link->lldp);
if (r < 0)
return r;
- r = sd_icmp6_nd_set_index(link->icmp6_router_discovery,
- link->ifindex);
+ r = sd_lldp_attach_event(link->lldp, NULL, 0);
if (r < 0)
return r;
- r = sd_icmp6_nd_set_callback(link->icmp6_router_discovery,
- icmp6_router_handler, link);
+ r = sd_lldp_set_callback(link->lldp,
+ lldp_handler, link);
if (r < 0)
return r;
}
- if (link_has_carrier(link->flags, link->kernel_operstate)) {
+ if (link_has_carrier(link)) {
r = link_acquire_conf(link);
if (r < 0)
return r;
return link_enter_join_netdev(link);
}
-static int link_initialized_and_synced(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata) {
+static int link_initialized_and_synced(sd_rtnl *rtnl, sd_rtnl_message *m,
+ void *userdata) {
_cleanup_link_unref_ Link *link = userdata;
Network *network;
int r;
assert(link->ifname);
assert(link->manager);
- if (link->state != LINK_STATE_INITIALIZING)
+ if (link->state != LINK_STATE_PENDING)
return 1;
- log_debug_link(link, "link state is up-to-date");
+ log_link_debug(link, "link state is up-to-date");
- r = network_get(link->manager, link->udev_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 1;
} else if (r < 0)
return r;
+ if (link->flags & IFF_LOOPBACK) {
+ if (network->link_local != ADDRESS_FAMILY_NO)
+ log_link_debug(link, "ignoring link-local autoconfiguration for loopback link");
+
+ if (network->dhcp != ADDRESS_FAMILY_NO)
+ log_link_debug(link, "ignoring DHCP clients for loopback link");
+
+ if (network->dhcp_server)
+ log_link_debug(link, "ignoring DHCP server for loopback link");
+ }
+
r = network_apply(link->manager, network, link);
if (r < 0)
return r;
assert(link->manager->rtnl);
assert(device);
- if (link->state != LINK_STATE_INITIALIZING)
+ if (link->state != LINK_STATE_PENDING)
return 0;
if (link->udev_device)
return 0;
- log_debug_link(link, "udev initialized link");
+ log_link_debug(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 */
+ /* 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);
+ 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);
+ r = sd_rtnl_call_async(link->manager->rtnl, req,
+ link_initialized_and_synced, link, 0, NULL);
if (r < 0)
return r;
return 0;
}
+static Address* link_get_equal_address(Link *link, Address *needle) {
+ Address *i;
+
+ assert(link);
+ assert(needle);
+
+ LIST_FOREACH(addresses, i, link->addresses)
+ if (address_equal(i, needle))
+ return i;
+
+ return NULL;
+}
+
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;
+ Address *existing;
+ char buf[INET6_ADDRSTRLEN], valid_buf[FORMAT_TIMESPAN_MAX];
+ const char *valid_str = NULL;
int r, ifindex;
assert(rtnl);
assert(message);
assert(m);
+ if (sd_rtnl_message_is_error(message)) {
+ r = sd_rtnl_message_get_errno(message);
+ if (r < 0)
+ log_warning_errno(r, "rtnl: failed to receive address: %m");
+
+ return 0;
+ }
+
r = sd_rtnl_message_get_type(message, &type);
if (r < 0) {
log_warning("rtnl: could not get message type");
}
r = sd_rtnl_message_addr_get_ifindex(message, &ifindex);
- if (r < 0 || ifindex <= 0) {
- log_warning("rtnl: received address message without valid ifindex, ignoring");
+ if (r < 0) {
+ log_warning_errno(r, "rtnl: could not get ifindex: %m");
+ return 0;
+ } else if (ifindex <= 0) {
+ log_warning("rtnl: received address message with invalid ifindex: %d", ifindex);
return 0;
} else {
r = link_get(m, ifindex, &link);
if (r < 0 || !link) {
- log_warning("rtnl: received address for a nonexistent link, ignoring");
+ /* when enumerating we might be out of sync, but we will
+ * get the address again, so just ignore it */
+ if (!m->enumerating)
+ log_warning("rtnl: received address for nonexistent link (%d), ignoring", ifindex);
return 0;
}
}
r = sd_rtnl_message_addr_get_family(message, &address->family);
if (r < 0 || !IN_SET(address->family, AF_INET, AF_INET6)) {
- log_warning_link(link, "rtnl: received address with invalid family, ignoring");
+ log_link_warning(link, "rtnl: received address with invalid family, ignoring");
return 0;
}
r = sd_rtnl_message_addr_get_prefixlen(message, &address->prefixlen);
if (r < 0) {
- log_warning_link(link, "rtnl: received address with invalid prefixlen, ignoring");
+ log_link_warning(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");
+ log_link_warning(link, "rtnl: received address with invalid scope, ignoring");
+ return 0;
+ }
+
+ r = sd_rtnl_message_addr_get_flags(message, &address->flags);
+ if (r < 0) {
+ log_link_warning(link, "rtnl: received address with invalid flags, ignoring");
return 0;
}
case AF_INET:
r = sd_rtnl_message_read_in_addr(message, IFA_LOCAL, &address->in_addr.in);
if (r < 0) {
- log_warning_link(link, "rtnl: received address without valid address, ignoring");
+ log_link_warning(link, "rtnl: received address without valid address, ignoring");
return 0;
}
case AF_INET6:
r = sd_rtnl_message_read_in6_addr(message, IFA_ADDRESS, &address->in_addr.in6);
if (r < 0) {
- log_warning_link(link, "rtnl: received address without valid address, ignoring");
+ log_link_warning(link, "rtnl: received address without valid address, ignoring");
return 0;
}
}
if (!inet_ntop(address->family, &address->in_addr, buf, INET6_ADDRSTRLEN)) {
- log_warning_link(link, "could not print address");
+ log_link_warning(link, "could not print address");
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;
- }
+ r = sd_rtnl_message_read_cache_info(message, IFA_CACHEINFO, &address->cinfo);
+ if (r >= 0) {
+ if (address->cinfo.ifa_valid == CACHE_INFO_INFINITY_LIFE_TIME)
+ valid_str = "ever";
+ else
+ valid_str = format_timespan(valid_buf, FORMAT_TIMESPAN_MAX,
+ address->cinfo.ifa_valid * USEC_PER_SEC,
+ USEC_PER_SEC);
}
+ existing = link_get_equal_address(link, address);
+
switch (type) {
case RTM_NEWADDR:
- if (!address_dropped)
- log_debug_link(link, "added address: %s/%u", buf,
- address->prefixlen);
- else
- log_debug_link(link, "updated address: %s/%u", buf,
- address->prefixlen);
+ if (existing) {
+ log_link_debug(link, "Updating address: %s/%u (valid for %s)", buf, address->prefixlen, valid_str);
+
+
+ existing->scope = address->scope;
+ existing->flags = address->flags;
+ existing->cinfo = address->cinfo;
+
+ } else {
+ log_link_debug(link, "Adding address: %s/%u (valid for %s)", buf, address->prefixlen, valid_str);
+
+ LIST_PREPEND(addresses, link->addresses, address);
+ address_establish(address, link);
- LIST_PREPEND(addresses, link->addresses, address);
- address = NULL;
+ address = NULL;
- link_save(link);
+ link_save(link);
+ }
break;
+
case RTM_DELADDR:
- if (address_dropped) {
- log_debug_link(link, "removed address: %s/%u", buf,
- address->prefixlen);
- link_save(link);
+ if (existing) {
+ log_link_debug(link, "Removing address: %s/%u (valid for %s)", buf, address->prefixlen, valid_str);
+ address_release(existing, link);
+ LIST_REMOVE(addresses, link->addresses, existing);
+ address_free(existing);
} else
- log_warning_link(link, "removing non-existent address: %s/%u",
- buf, address->prefixlen);
+ log_link_warning(link, "Removing non-existent address: %s/%u (valid for %s)", buf, address->prefixlen, valid_str);
break;
default:
int link_add(Manager *m, sd_rtnl_message *message, Link **ret) {
Link *link;
- _cleanup_rtnl_message_unref_ sd_rtnl_message *req = NULL;
_cleanup_udev_device_unref_ struct udev_device *device = NULL;
char ifindex_str[2 + DECIMAL_STR_MAX(int)];
int r;
link = *ret;
- log_debug_link(link, "link %"PRIu64" added", link->ifindex);
-
- r = sd_rtnl_message_new_addr(m->rtnl, &req, RTM_GETADDR, link->ifindex, 0);
- if (r < 0)
- return r;
-
- r = sd_rtnl_call_async(m->rtnl, req, link_get_address_handler, link, 0, NULL);
- if (r < 0)
- return r;
-
- link_ref(link);
+ log_link_debug(link, "link %d added", link->ifindex);
if (detect_container(NULL) <= 0) {
/* not in a container, udev will be around */
- sprintf(ifindex_str, "n%"PRIu64, link->ifindex);
+ sprintf(ifindex_str, "n%d", link->ifindex);
device = udev_device_new_from_device_id(m->udev, ifindex_str);
if (!device) {
- log_warning_link(link, "could not find udev device");
+ log_link_warning(link,
+ "could not find udev device: %m");
return -errno;
}
if (udev_device_get_is_initialized(device) <= 0) {
/* not yet ready */
- log_debug_link(link, "udev initializing link...");
+ log_link_debug(link, "link pending udev initialization...");
return 0;
}
return 0;
}
+static int link_carrier_gained(Link *link) {
+ int r;
+
+ assert(link);
+
+ if (link->network) {
+ r = link_acquire_conf(link);
+ if (r < 0) {
+ link_enter_failed(link);
+ return r;
+ }
+ }
+
+ return 0;
+}
+
+static int link_carrier_lost(Link *link) {
+ int r;
+
+ assert(link);
+
+ r = link_stop_clients(link);
+ if (r < 0) {
+ link_enter_failed(link);
+ return r;
+ }
+
+ return 0;
+}
+
+int link_carrier_reset(Link *link) {
+ int r;
+
+ assert(link);
+
+ if (link_has_carrier(link)) {
+ r = link_carrier_lost(link);
+ if (r < 0)
+ return r;
+
+ r = link_carrier_gained(link);
+ if (r < 0)
+ return r;
+
+ log_link_info(link, "reset carrier");
+ }
+
+ return 0;
+}
+
+
int link_update(Link *link, sd_rtnl_message *m) {
struct ether_addr mac;
const char *ifname;
+ uint32_t mtu;
+ bool had_carrier, carrier_gained, carrier_lost;
int r;
assert(link);
if (link->state == LINK_STATE_LINGER) {
link_ref(link);
- log_info_link(link, "link readded");
- link->state = LINK_STATE_ENSLAVING;
+ log_link_info(link, "link readded");
+ link_set_state(link, LINK_STATE_ENSLAVING);
}
r = sd_rtnl_message_read_string(m, IFLA_IFNAME, &ifname);
if (r >= 0 && !streq(ifname, link->ifname)) {
- log_info_link(link, "renamed to %s", ifname);
+ log_link_info(link, "renamed to %s", ifname);
free(link->ifname);
link->ifname = strdup(ifname);
return -ENOMEM;
}
- if (!link->original_mtu) {
- r = sd_rtnl_message_read_u16(m, IFLA_MTU, &link->original_mtu);
- if (r >= 0)
- log_debug_link(link, "saved original MTU: %"
- PRIu16, link->original_mtu);
+ r = sd_rtnl_message_read_u32(m, IFLA_MTU, &mtu);
+ if (r >= 0 && mtu > 0) {
+ link->mtu = mtu;
+ if (!link->original_mtu) {
+ link->original_mtu = mtu;
+ log_link_debug(link, "saved original MTU: %"
+ PRIu32, link->original_mtu);
+ }
+
+ if (link->dhcp_client) {
+ r = sd_dhcp_client_set_mtu(link->dhcp_client,
+ link->mtu);
+ if (r < 0) {
+ log_link_warning(link,
+ "Could not update MTU in DHCP client: %s",
+ strerror(-r));
+ return r;
+ }
+ }
}
/* The kernel may broadcast NEWLINK messages without the MAC address
set, simply ignore them. */
r = sd_rtnl_message_read_ether_addr(m, IFLA_ADDRESS, &mac);
if (r >= 0) {
- if (memcmp(link->mac.ether_addr_octet, mac.ether_addr_octet, ETH_ALEN)) {
+ if (memcmp(link->mac.ether_addr_octet, mac.ether_addr_octet,
+ ETH_ALEN)) {
- memcpy(link->mac.ether_addr_octet, mac.ether_addr_octet, ETH_ALEN);
+ memcpy(link->mac.ether_addr_octet, mac.ether_addr_octet,
+ ETH_ALEN);
- log_debug_link(link, "MAC address: "
+ log_link_debug(link, "MAC address: "
"%02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx",
mac.ether_addr_octet[0],
mac.ether_addr_octet[1],
if (link->ipv4ll) {
r = sd_ipv4ll_set_mac(link->ipv4ll, &link->mac);
if (r < 0) {
- log_warning_link(link, "Could not update MAC "
- "address in IPv4LL client: %s",
+ log_link_warning(link,
+ "Could not update MAC address in IPv4LL client: %s",
strerror(-r));
return r;
}
}
if (link->dhcp_client) {
- r = sd_dhcp_client_set_mac(link->dhcp_client, &link->mac);
+ r = sd_dhcp_client_set_mac(link->dhcp_client,
+ (const uint8_t *) &link->mac,
+ sizeof (link->mac),
+ ARPHRD_ETHER);
if (r < 0) {
- log_warning_link(link, "Could not update MAC "
- "address in DHCP client: %s",
+ log_link_warning(link,
+ "Could not update MAC address in DHCP client: %s",
strerror(-r));
return r;
}
if (link->dhcp6_client) {
r = sd_dhcp6_client_set_mac(link->dhcp6_client,
- &link->mac);
+ (const uint8_t *) &link->mac,
+ sizeof (link->mac),
+ ARPHRD_ETHER);
if (r < 0) {
- log_warning_link(link, "Could not update MAC address in DHCPv6 client: %s",
+ log_link_warning(link,
+ "Could not update MAC address in DHCPv6 client: %s",
strerror(-r));
return r;
}
}
}
- return link_update_flags(link, m);
-}
+ had_carrier = link_has_carrier(link);
-static void serialize_addresses(FILE *f, const char *key, Address *address) {
- Address *ad;
+ r = link_update_flags(link, m);
+ if (r < 0)
+ return r;
- assert(f);
- assert(key);
+ carrier_gained = !had_carrier && link_has_carrier(link);
+ carrier_lost = had_carrier && !link_has_carrier(link);
- if (!address)
- return;
+ if (carrier_gained) {
+ log_link_info(link, "gained carrier");
- fprintf(f, "%s=", key);
+ r = link_carrier_gained(link);
+ if (r < 0)
+ return r;
+ } else if (carrier_lost) {
+ log_link_info(link, "lost carrier");
- LIST_FOREACH(addresses, ad, address) {
- char buf[INET6_ADDRSTRLEN];
+ r = link_carrier_lost(link);
+ if (r < 0)
+ return r;
- if (inet_ntop(ad->family, &ad->in_addr, buf, INET6_ADDRSTRLEN))
- fprintf(f, "%s%s", buf, (ad->addresses_next) ? " ": "");
}
- fputs("\n", f);
+ return 0;
}
static void link_update_operstate(Link *link) {
-
+ LinkOperationalState operstate;
assert(link);
if (link->kernel_operstate == IF_OPER_DORMANT)
- link->operstate = LINK_OPERSTATE_DORMANT;
- else if (link_has_carrier(link->flags, link->kernel_operstate)) {
+ operstate = LINK_OPERSTATE_DORMANT;
+ else if (link_has_carrier(link)) {
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->flags & (IFA_F_TENTATIVE | IFA_F_DEPRECATED))
+ continue;
+
if (address->scope < scope)
scope = address->scope;
}
if (scope < RT_SCOPE_SITE)
/* universally accessible addresses found */
- link->operstate = LINK_OPERSTATE_ROUTABLE;
+ operstate = LINK_OPERSTATE_ROUTABLE;
else if (scope < RT_SCOPE_HOST)
/* only link or site local addresses found */
- link->operstate = LINK_OPERSTATE_DEGRADED;
+ operstate = LINK_OPERSTATE_DEGRADED;
else
/* no useful addresses found */
- link->operstate = LINK_OPERSTATE_CARRIER;
- } else
- link->operstate = LINK_OPERSTATE_UNKNOWN;
+ operstate = LINK_OPERSTATE_CARRIER;
+ } else if (link->flags & IFF_UP)
+ operstate = LINK_OPERSTATE_NO_CARRIER;
+ else
+ operstate = LINK_OPERSTATE_OFF;
+
+ if (link->operstate != operstate) {
+ link->operstate = operstate;
+ link_send_changed(link, "OperationalState", NULL);
+ }
}
int link_save(Link *link) {
r = fopen_temporary(link->state_file, &f, &temp_path);
if (r < 0)
- goto finish;
+ return r;
fchmod(fileno(f), 0644);
admin_state, oper_state);
if (link->network) {
- serialize_addresses(f, "DNS", link->network->dns);
- serialize_addresses(f, "NTP", link->network->ntp);
+ char **address, **domain;
+ bool space;
+
+ fprintf(f, "NETWORK_FILE=%s\n", link->network->filename);
+
+ fputs("DNS=", f);
+ space = false;
+ STRV_FOREACH(address, link->network->dns) {
+ if (space)
+ fputc(' ', f);
+ fputs(*address, f);
+ space = true;
+ }
+
+ if (link->network->dhcp_dns &&
+ link->dhcp_lease) {
+ const struct in_addr *addresses;
+
+ r = sd_dhcp_lease_get_dns(link->dhcp_lease, &addresses);
+ if (r > 0) {
+ if (space)
+ fputc(' ', f);
+ serialize_in_addrs(f, addresses, r);
+ }
+ }
+
+ fputs("\n", f);
+
+ fprintf(f, "NTP=");
+ space = false;
+ STRV_FOREACH(address, link->network->ntp) {
+ if (space)
+ fputc(' ', f);
+ fputs(*address, f);
+ space = true;
+ }
+
+ if (link->network->dhcp_ntp &&
+ link->dhcp_lease) {
+ const struct in_addr *addresses;
+
+ r = sd_dhcp_lease_get_ntp(link->dhcp_lease, &addresses);
+ if (r > 0) {
+ if (space)
+ fputc(' ', f);
+ serialize_in_addrs(f, addresses, r);
+ }
+ }
+
+ fputs("\n", f);
+
+ fprintf(f, "DOMAINS=");
+ space = false;
+ STRV_FOREACH(domain, link->network->domains) {
+ if (space)
+ fputc(' ', f);
+ fputs(*domain, f);
+ space = true;
+ }
+
+ if (link->network->dhcp_domains &&
+ link->dhcp_lease) {
+ const char *domainname;
+
+ r = sd_dhcp_lease_get_domainname(link->dhcp_lease, &domainname);
+ if (r >= 0) {
+ if (space)
+ fputc(' ', f);
+ fputs(domainname, f);
+ }
+ }
+
+ fputs("\n", f);
+
+ fprintf(f, "WILDCARD_DOMAIN=%s\n",
+ yes_no(link->network->wildcard_domain));
+
+ fprintf(f, "LLMNR=%s\n",
+ llmnr_support_to_string(link->network->llmnr));
}
if (link->dhcp_lease) {
assert(link->network);
- r = dhcp_lease_save(link->dhcp_lease, link->lease_file);
+ r = sd_dhcp_lease_save(link->dhcp_lease, link->lease_file);
if (r < 0)
- goto finish;
+ goto fail;
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));
+ "DHCP_LEASE=%s\n",
+ link->lease_file);
} else
unlink(link->lease_file);
- fflush(f);
+ if (link->lldp) {
+ assert(link->network);
- if (ferror(f) || rename(temp_path, link->state_file) < 0) {
- r = -errno;
- unlink(link->state_file);
- unlink(temp_path);
- }
+ r = sd_lldp_save(link->lldp, link->lldp_file);
+ if (r < 0)
+ goto fail;
+
+ fprintf(f,
+ "LLDP_FILE=%s\n",
+ link->lldp_file);
+ } else
+ unlink(link->lldp_file);
-finish:
+ r = fflush_and_check(f);
if (r < 0)
- log_error_link(link, "Failed to save link data to %s: %s", link->state_file, strerror(-r));
+ goto fail;
+
+ if (rename(temp_path, link->state_file) < 0) {
+ r = -errno;
+ goto fail;
+ }
+ return 0;
+fail:
+ log_link_error(link, "Failed to save link data to %s: %s", link->state_file, strerror(-r));
+ unlink(link->state_file);
+ unlink(temp_path);
return r;
}
static const char* const link_state_table[_LINK_STATE_MAX] = {
- [LINK_STATE_INITIALIZING] = "initializing",
+ [LINK_STATE_PENDING] = "pending",
[LINK_STATE_ENSLAVING] = "configuring",
[LINK_STATE_SETTING_ADDRESSES] = "configuring",
[LINK_STATE_SETTING_ROUTES] = "configuring",
DEFINE_STRING_TABLE_LOOKUP(link_state, LinkState);
static const char* const link_operstate_table[_LINK_OPERSTATE_MAX] = {
- [LINK_OPERSTATE_UNKNOWN] = "unknown",
+ [LINK_OPERSTATE_OFF] = "off",
+ [LINK_OPERSTATE_NO_CARRIER] = "no-carrier",
[LINK_OPERSTATE_DORMANT] = "dormant",
[LINK_OPERSTATE_CARRIER] = "carrier",
[LINK_OPERSTATE_DEGRADED] = "degraded",
};
DEFINE_STRING_TABLE_LOOKUP(link_operstate, LinkOperationalState);
-
-static const char* const dhcp_support_table[_DHCP_SUPPORT_MAX] = {
- [DHCP_SUPPORT_NONE] = "none",
- [DHCP_SUPPORT_BOTH] = "both",
- [DHCP_SUPPORT_V4] = "v4",
- [DHCP_SUPPORT_V6] = "v6",
-};
-
-DEFINE_STRING_TABLE_LOOKUP(dhcp_support, DHCPSupport);
-
-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) {
-
- DHCPSupport *dhcp = data;
- int k;
-
- assert(filename);
- assert(lvalue);
- assert(rvalue);
- assert(data);
-
- /* Our enum shall be a superset of booleans, hence first try
- * to parse as boolean, and then as enum */
-
- k = parse_boolean(rvalue);
- if (k > 0)
- *dhcp = DHCP_SUPPORT_BOTH;
- else if (k == 0)
- *dhcp = DHCP_SUPPORT_NONE;
- else {
- DHCPSupport s;
-
- s = dhcp_support_from_string(rvalue);
- if (s < 0){
- log_syntax(unit, LOG_ERR, filename, line, -s, "Failed to parse DHCP option, ignoring: %s", rvalue);
- return 0;
- }
-
- *dhcp = s;
- }
-
- return 0;
-}
~ianmdlvl / elogind.git / blobdiff