#include "conf-parser.h"
#include "dhcp-lease-internal.h"
-static bool link_dhcp6_enabled(Link *link) {
+bool link_dhcp6_enabled(Link *link) {
if (link->flags & IFF_LOOPBACK)
return false;
return IN_SET(link->network->dhcp, ADDRESS_FAMILY_IPV6, ADDRESS_FAMILY_YES);
}
-static bool link_dhcp4_enabled(Link *link) {
+bool link_dhcp4_enabled(Link *link) {
if (link->flags & IFF_LOOPBACK)
return false;
return IN_SET(link->network->dhcp, ADDRESS_FAMILY_IPV4, ADDRESS_FAMILY_YES);
}
-static bool link_dhcp4_server_enabled(Link *link) {
+bool link_dhcp4_server_enabled(Link *link) {
if (link->flags & IFF_LOOPBACK)
return false;
return link->network->dhcp_server;
}
-static bool link_ipv4ll_enabled(Link *link) {
+bool link_ipv4ll_enabled(Link *link) {
if (link->flags & IFF_LOOPBACK)
return false;
if (!link->network)
return false;
- return link->network->ipv4ll;
+ return IN_SET(link->network->link_local, ADDRESS_FAMILY_IPV4, ADDRESS_FAMILY_YES);
}
-static bool link_lldp_enabled(Link *link) {
+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;
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);
- unlink(link->lldp_file);
free(link->lldp_file);
sd_ipv4ll_unref(link->ipv4ll);
free(link->ifname);
- unlink(link->state_file);
free(link->state_file);
udev_device_unref(link->udev_device);
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_link_debug(link, "link removed");
log_link_debug(link, "unmanaged");
- link->state = LINK_STATE_UNMANAGED;
+ link_set_state(link, LINK_STATE_UNMANAGED);
link_save(link);
}
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)
}
static int link_enter_configured(Link *link) {
- int r;
-
assert(link);
assert(link->network);
assert(link->state == LINK_STATE_SETTING_ROUTES);
- if (link_dhcp4_server_enabled(link) &&
- !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_link_warning(link,
- "Failed to find suitable address for DHCPv4 server instance.");
- link_enter_failed(link);
- return 0;
- }
-
- log_link_debug(link, "offering DHCPv4 leases");
-
- r = sd_dhcp_server_set_address(link->dhcp_server,
- &address->in_addr.in,
- address->prefixlen);
- 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;
-
- /* 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;
- */
-
- r = sd_dhcp_server_start(link->dhcp_server);
- if (r < 0) {
- log_link_warning(link, "could not start DHCPv4 server "
- "instance: %s", strerror(-r));
-
- link_enter_failed(link);
-
- return 0;
- }
- }
-
log_link_info(link, "link configured");
- link->state = LINK_STATE_CONFIGURED;
+ link_set_state(link, LINK_STATE_CONFIGURED);
link_save(link);
assert(link->network);
assert(link->state == LINK_STATE_SETTING_ADDRESSES);
- link->state = LINK_STATE_SETTING_ROUTES;
+ link_set_state(link, LINK_STATE_SETTING_ROUTES);
LIST_FOREACH(routes, rt, link->network->static_routes) {
r = route_configure(rt, link, &route_handler);
assert(link->network);
assert(link->state != _LINK_STATE_INVALID);
- link->state = LINK_STATE_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);
link->link_messages ++;
}
+ /* 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;
+
+ 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;
+ }
+
+ r = sd_dhcp_server_set_address(link->dhcp_server,
+ &address->in_addr.in,
+ address->prefixlen);
+ 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;
+
+ /* 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;
+ */
+
+ r = sd_dhcp_server_start(link->dhcp_server);
+ if (r < 0) {
+ log_link_warning(link, "could not start DHCPv4 server "
+ "instance: %s", strerror(-r));
+
+ link_enter_failed(link);
+
+ return 0;
+ }
+
+ log_link_debug(link, "offering DHCPv4 leases");
+ }
+
if (link->link_messages == 0) {
link_enter_set_routes(link);
} else
return 1;
}
-static int link_set_bridge_fdb(const Link *const link) {
+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->manager->rtnl, fdb_entry, link->ifindex);
+ 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;
static int link_up(Link *link) {
_cleanup_rtnl_message_unref_ sd_rtnl_message *req = NULL;
+ uint8_t ipv6ll_mode;
int r;
assert(link);
}
}
+ 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;
+ }
+
+ r = sd_rtnl_message_open_container(req, AF_INET6);
+ if (r < 0) {
+ log_link_error(link, "Could not open AF_INET6 container: %s", strerror(-r));
+ return r;
+ }
+
+ 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;
+ }
+
+ 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) {
+ log_link_error(link, "Could not append IFLA_INET6_TOKEN: %s", strerror(-r));
+ return r;
+ }
+ }
+
+ r = sd_rtnl_message_close_container(req);
+ if (r < 0) {
+ log_link_error(link, "Could not close AF_INET6 container: %s", strerror(-r));
+ return r;
+ }
+
+ r = sd_rtnl_message_close_container(req);
+ if (r < 0) {
+ 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);
if (r < 0) {
assert(link->network);
assert(link->state == LINK_STATE_PENDING);
- link->state = LINK_STATE_ENSLAVING;
+ link_set_state(link, LINK_STATE_ENSLAVING);
link_save(link);
b = link_ipv4_forward_enabled(link);
- p = strappenda("/proc/sys/net/ipv4/conf/", link->ifname, "/forwarding");
+ 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);
const char *p = NULL;
int r;
- p = strappenda("/proc/sys/net/ipv6/conf/", link->ifname, "/forwarding");
+ 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");
return r;
if (link->flags & IFF_LOOPBACK) {
- if (network->ipv4ll)
- log_link_debug(link, "ignoring IPv4LL for loopback link");
+ 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");
} else {
r = link_get(m, ifindex, &link);
if (r < 0 || !link) {
- log_warning("rtnl: received address for nonexistent link (%d), ignoring", ifindex);
+ /* 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;
}
}
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;
if (link->state == LINK_STATE_LINGER) {
link_ref(link);
log_link_info(link, "link readded");
- link->state = LINK_STATE_ENSLAVING;
+ link_set_state(link, LINK_STATE_ENSLAVING);
}
r = sd_rtnl_message_read_string(m, IFLA_IFNAME, &ifname);
if (carrier_gained) {
log_link_info(link, "gained carrier");
- if (link->network) {
- r = link_acquire_conf(link);
- if (r < 0) {
- link_enter_failed(link);
- return r;
- }
- }
+ r = link_carrier_gained(link);
+ if (r < 0)
+ return r;
} else if (carrier_lost) {
log_link_info(link, "lost carrier");
- r = link_stop_clients(link);
- if (r < 0) {
- link_enter_failed(link);
+ r = link_carrier_lost(link);
+ if (r < 0)
return r;
- }
+
}
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;
+ operstate = LINK_OPERSTATE_DORMANT;
else if (link_has_carrier(link)) {
Address *address;
uint8_t scope = RT_SCOPE_NOWHERE;
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;
+ operstate = LINK_OPERSTATE_CARRIER;
} else if (link->flags & IFF_UP)
- link->operstate = LINK_OPERSTATE_NO_CARRIER;
+ operstate = LINK_OPERSTATE_NO_CARRIER;
else
- link->operstate = LINK_OPERSTATE_OFF;
+ operstate = LINK_OPERSTATE_OFF;
+
+ if (link->operstate != operstate) {
+ link->operstate = operstate;
+ link_send_changed(link, "OperationalState", NULL);
+ }
}
int link_save(Link *link) {
~ianmdlvl / elogind.git / blobdiff