#include "dhcp-lease-internal.h"
+static bool link_dhcp6_enabled(Link *link) {
+ if (link->flags & IFF_LOOPBACK)
+ return false;
+
+ if (!link->network)
+ return false;
+
+ return IN_SET(link->network->dhcp, DHCP_SUPPORT_V6, DHCP_SUPPORT_BOTH);
+}
+
+static bool link_dhcp4_enabled(Link *link) {
+ if (link->flags & IFF_LOOPBACK)
+ return false;
+
+ if (!link->network)
+ return false;
+
+ return IN_SET(link->network->dhcp, DHCP_SUPPORT_V4, DHCP_SUPPORT_BOTH);
+}
+
+static bool link_dhcp4_server_enabled(Link *link) {
+ if (link->flags & IFF_LOOPBACK)
+ return false;
+
+ if (!link->network)
+ return false;
+
+ return link->network->dhcp_server;
+}
+
+static bool link_ipv4ll_enabled(Link *link) {
+ if (link->flags & IFF_LOOPBACK)
+ return false;
+
+ if (!link->network)
+ return false;
+
+ return link->network->ipv4ll;
+}
+
+#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;
uint16_t type;
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 = hashmap_ensure_allocated(&manager->links, NULL, NULL);
+ r = hashmap_ensure_allocated(&manager->links, NULL);
if (r < 0)
return r;
if (r < 0)
return r;
+ r = link_update_flags(link, message);
+ if (r < 0)
+ return r;
+
*ret = link;
link = NULL;
link->state = 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;
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",
+ log_link_warning(link, "Could not stop DHCPv4 client: %s",
strerror(-r));
r = k;
}
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->dhcp_server) {
- k = sd_dhcp_server_stop(link->dhcp_server);
- if (k < 0) {
- log_warning_link(link, "Could not stop DHCPv4 server: %s",
+ log_link_warning(link, "Could not stop IPv4 link-local: %s",
strerror(-r));
r = k;
}
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",
+ 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,
+ log_link_warning(link,
"Could not stop ICMPv6 router discovery: %s",
strerror(-r));
r = k;
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;
assert(link->network);
assert(link->state == LINK_STATE_SETTING_ROUTES);
- if (link->network->dhcp_server &&
+ 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_warning_link(link,
+ log_link_warning(link,
"Failed to find suitable address for DHCPv4 server instance.");
link_enter_failed(link);
return 0;
}
- log_debug_link(link, "offering DHCPv4 leases");
+ log_link_debug(link, "offering DHCPv4 leases");
r = sd_dhcp_server_set_address(link->dhcp_server,
&address->in_addr.in,
r = sd_dhcp_server_start(link->dhcp_server);
if (r < 0) {
- log_warning_link(link, "could not start DHCPv4 server "
+ log_link_warning(link, "could not start DHCPv4 server "
"instance: %s", strerror(-r));
link_enter_failed(link);
}
}
- log_info_link(link, "link configured");
+ log_link_info(link, "link configured");
link->state = LINK_STATE_CONFIGURED;
if (!link->static_configured)
return;
- if (link->network->ipv4ll)
+ if (link_ipv4ll_enabled(link))
if (!link->ipv4ll_address ||
!link->ipv4ll_route)
return;
- if (IN_SET(link->network->dhcp, DHCP_SUPPORT_BOTH, DHCP_SUPPORT_V4))
- if (!link->dhcp4_configured)
+ if (link_dhcp4_enabled(link) && !link->dhcp4_configured)
return;
if (link->state != LINK_STATE_CONFIGURED)
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);
if (link->link_messages == 0) {
- log_debug_link(link, "routes set");
+ log_link_debug(link, "routes set");
link->static_configured = true;
link_client_handler(link);
}
LIST_FOREACH(routes, rt, link->network->static_routes) {
r = route_configure(rt, link, &route_handler);
if (r < 0) {
- log_warning_link(link,
+ log_link_warning(link,
"could not set routes: %s",
strerror(-r));
link_enter_failed(link);
link->static_configured = true;
link_client_handler(link);
} else
- log_debug_link(link, "setting routes");
+ log_link_debug(link, "setting routes");
return 0;
}
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);
+ log_link_warning_errno(link, -r, "%-*s: could not drop route: %m", IFNAMSIZ, link->ifname);
return 1;
}
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",
+ log_link_debug(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",
+ log_link_warning(link, "could not process address: %s",
strerror(-r));
}
r = sd_rtnl_message_get_errno(m);
if (r < 0 && r != -EEXIST)
- log_struct_link(LOG_WARNING, link,
- "MESSAGE=%-*s: could not set address: %s",
- IFNAMSIZ,
- link->ifname, strerror(-r),
- "ERRNO=%d", -r,
- NULL);
+ log_link_warning_errno(link, -r, "%-*s: could not set address: %m", IFNAMSIZ, link->ifname);
else if (r >= 0) {
/* calling handler directly so take a ref */
link_ref(link);
}
if (link->link_messages == 0) {
- log_debug_link(link, "addresses set");
+ log_link_debug(link, "addresses set");
link_enter_set_routes(link);
}
LIST_FOREACH(addresses, ad, link->network->static_addresses) {
r = address_configure(ad, link, &address_handler);
if (r < 0) {
- log_warning_link(link,
+ log_link_warning(link,
"could not set addresses: %s",
strerror(-r));
link_enter_failed(link);
if (link->link_messages == 0) {
link_enter_set_routes(link);
} else
- log_debug_link(link, "setting addresses");
+ log_link_debug(link, "setting addresses");
return 0;
}
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",
+ log_link_warning_errno(link, -r, "%-*s: could not drop address: %m", IFNAMSIZ, link->ifname);
+
+ return 1;
+}
+
+static int link_set_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata) {
+ _cleanup_link_unref_ Link *link = userdata;
+ int r;
+
+ log_link_debug(link, "set link");
+
+ r = sd_rtnl_message_get_errno(m);
+ 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,
return 1;
r = sd_bus_message_get_errno(m);
- if (r < 0)
- r = -r;
if (r > 0)
- log_warning_link(link, "Could not set hostname: %s",
+ log_link_warning(link, "Could not set hostname: %s",
strerror(r));
return 1;
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,
+ log_link_info(link,
"Not connected to system bus, ignoring transient hostname.");
return 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",
+ 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;
}
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);
if (r < 0) {
- log_error_link(link,
+ log_link_error(link,
"Could not send rtnetlink message: %s",
strerror(-r));
return r;
return 0;
}
+static int link_set_bridge(Link *link) {
+ _cleanup_rtnl_message_unref_ sd_rtnl_message *req = NULL;
+ int r;
+
+ assert(link);
+ assert(link->network);
+
+ if(link->network->cost == 0)
+ return 0;
+
+ 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 = 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;
+ }
+
+ 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;
+ }
+
+ 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;
+ }
+ }
+
+ 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_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_ref(link);
+
+ return r;
+}
+
static void dhcp6_handler(sd_dhcp6_client *client, int event, void *userdata) {
Link *link = userdata;
case DHCP6_EVENT_RESEND_EXPIRE:
case DHCP6_EVENT_RETRANS_MAX:
case DHCP6_EVENT_IP_ACQUIRE:
- log_debug_link(link, "DHCPv6 event %d", event);
+ log_link_debug(link, "DHCPv6 event %d", event);
break;
default:
if (event < 0)
- log_warning_link(link, "DHCPv6 error: %s",
+ log_link_warning(link, "DHCPv6 error: %s",
strerror(-event));
else
- log_warning_link(link, "DHCPv6 unknown event: %d",
+ log_link_warning(link, "DHCPv6 unknown event: %d",
event);
return;
}
default:
if (event < 0)
- log_warning_link(link, "ICMPv6 error: %s",
+ log_link_warning(link, "ICMPv6 error: %s",
strerror(-event));
else
- log_warning_link(link, "ICMPv6 unknown event: %d",
+ log_link_warning(link, "ICMPv6 unknown event: %d",
event);
return;
return;
}
- r = sd_dhcp6_client_set_mac(link->dhcp6_client, &link->mac);
+ r = sd_dhcp6_client_set_mac(link->dhcp6_client,
+ (const uint8_t *) &link->mac,
+ sizeof (link->mac), ARPHRD_ETHER);
if (r < 0) {
link->dhcp6_client = sd_dhcp6_client_unref(link->dhcp6_client);
return;
assert(link->manager);
assert(link->manager->event);
- if (link->network->ipv4ll) {
+ if (link_ipv4ll_enabled(link)) {
assert(link->ipv4ll);
- log_debug_link(link, "acquiring IPv4 link-local address");
+ log_link_debug(link, "acquiring IPv4 link-local address");
r = sd_ipv4ll_start(link->ipv4ll);
if (r < 0) {
- log_warning_link(link, "could not acquire IPv4 "
+ log_link_warning(link, "could not acquire IPv4 "
"link-local address");
return r;
}
}
- if (IN_SET(link->network->dhcp, DHCP_SUPPORT_BOTH, DHCP_SUPPORT_V4)) {
+ if (link_dhcp4_enabled(link)) {
assert(link->dhcp_client);
- log_debug_link(link, "acquiring DHCPv4 lease");
+ log_link_debug(link, "acquiring DHCPv4 lease");
r = sd_dhcp_client_start(link->dhcp_client);
if (r < 0) {
- log_warning_link(link, "could not acquire DHCPv4 "
+ log_link_warning(link, "could not acquire DHCPv4 "
"lease");
return r;
}
}
- if (IN_SET(link->network->dhcp, DHCP_SUPPORT_BOTH, DHCP_SUPPORT_V6)) {
+ if (link_dhcp6_enabled(link)) {
assert(link->icmp6_router_discovery);
- log_debug_link(link, "discovering IPv6 routers");
+ log_link_debug(link, "discovering IPv6 routers");
r = sd_icmp6_router_solicitation_start(link->icmp6_router_discovery);
if (r < 0) {
- log_warning_link(link,
+ log_link_warning(link,
"could not start IPv6 router discovery");
return r;
}
return 0;
}
-bool link_has_carrier(unsigned flags, uint8_t operstate) {
+bool link_has_carrier(Link *link) {
/* see Documentation/networking/operstates.txt in the kernel sources */
- if (operstate == IF_OPER_UP)
+ if (link->kernel_operstate == IF_OPER_UP)
return true;
- if (operstate == IF_OPER_UNKNOWN)
+ if (link->kernel_operstate == IF_OPER_UNKNOWN)
/* operstate may not be implemented, so fall back to flags */
- if ((flags & IFF_LOWER_UP) && !(flags & IFF_DORMANT))
+ if ((link->flags & IFF_LOWER_UP) && !(link->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);
- if (r < 0) {
- log_warning_link(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_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);
- }
-
- 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 (r < 0) {
- link_enter_failed(link);
- 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;
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);
+ log_link_warning_errno(link, -r, "%-*s: could not bring up interface: %m", IFNAMSIZ, link->ifname);
}
return 1;
int r;
assert(link);
+ assert(link->network);
assert(link->manager);
assert(link->manager->rtnl);
- log_debug_link(link, "bringing link up");
+ log_link_debug(link, "bringing link up");
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_link_set_flags(req, IFF_UP, IFF_UP);
if (r < 0) {
- log_error_link(link, "Could not set link flags: %s",
+ log_link_error(link, "Could not set link flags: %s",
strerror(-r));
return r;
}
+ if (link->network->mac) {
+ r = sd_rtnl_message_append_ether_addr(req, IFLA_ADDRESS, link->network->mac);
+ if (r < 0) {
+ log_link_error(link, "Could not set MAC address: %s", strerror(-r));
+ return r;
+ }
+ }
+
+ if (link->network->mtu) {
+ r = sd_rtnl_message_append_u32(req, IFLA_MTU, link->network->mtu);
+ if (r < 0) {
+ log_link_error(link, "Could not set MTU: %s", strerror(-r));
+ return r;
+ }
+ }
+
r = sd_rtnl_call_async(link->manager->rtnl, req, link_up_handler, link,
0, NULL);
if (r < 0) {
- log_error_link(link,
+ 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);
if (!(link->flags & IFF_UP)) {
}
}
+ 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);
}
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_debug_link(link, "joined netdev");
+ log_link_debug(link, "joined netdev");
if (link->enslaving <= 0)
link_joined(link);
return link_joined(link);
if (link->network->bond) {
- log_struct_link(LOG_DEBUG, link,
+ log_link_struct(link, LOG_DEBUG,
"MESSAGE=%-*s: enslaving by '%s'",
IFNAMSIZ,
link->ifname, link->network->bond->ifname,
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->bond->ifname,
}
if (link->network->bridge) {
- log_struct_link(LOG_DEBUG, link,
+ log_link_struct(link, LOG_DEBUG,
"MESSAGE=%-*s: enslaving by '%s'",
IFNAMSIZ,
link->ifname, link->network->bridge->ifname,
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, link->network->bridge->ifname,
}
HASHMAP_FOREACH(netdev, link->network->stacked_netdevs, i) {
- log_struct_link(LOG_DEBUG, link,
+ log_link_struct(link, LOG_DEBUG,
"MESSAGE=%-*s: enslaving by '%s'",
IFNAMSIZ,
link->ifname, netdev->ifname, NETDEVIF(netdev),
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, netdev->ifname,
assert(link->network);
assert(link->state == LINK_STATE_PENDING);
- if (link->network->ipv4ll) {
+ if (link_ipv4ll_enabled(link)) {
r = ipv4ll_configure(link);
if (r < 0)
return r;
}
- if (IN_SET(link->network->dhcp, DHCP_SUPPORT_BOTH, DHCP_SUPPORT_V4)) {
+ if (link_dhcp4_enabled(link)) {
r = dhcp4_configure(link);
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)) {
+ if (link_dhcp6_enabled(link)) {
r = sd_icmp6_nd_new(&link->icmp6_router_discovery);
if (r < 0)
return r;
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;
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);
} else if (r < 0)
return r;
+ if (link->flags & IFF_LOOPBACK) {
+ if (network->ipv4ll)
+ log_link_debug(link, "ignoring IPv4LL for loopback link");
+
+ if (network->dhcp != DHCP_SUPPORT_NONE)
+ 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;
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);
} else {
r = link_get(m, ifindex, &link);
if (r < 0 || !link) {
- log_warning("rtnl: received address for a nonexistent link, ignoring");
+ log_warning("rtnl: received address for a 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,
+ 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,
+ 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,
+ 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;
+ }
+
switch (address->family) {
case AF_INET:
r = sd_rtnl_message_read_in_addr(message, IFA_LOCAL,
&address->in_addr.in);
if (r < 0) {
- log_warning_link(link,
+ log_link_warning(link,
"rtnl: received address without valid address, ignoring");
return 0;
}
r = sd_rtnl_message_read_in6_addr(message, IFA_ADDRESS,
&address->in_addr.in6);
if (r < 0) {
- log_warning_link(link,
+ 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;
}
switch (type) {
case RTM_NEWADDR:
if (!address_dropped)
- log_debug_link(link, "added address: %s/%u (valid for %s)",
- buf, address->prefixlen,
- strna(valid_str));
+ log_link_debug(link, "added address: %s/%u (valid for %s)",
+ buf, address->prefixlen, valid_str);
else
- log_debug_link(link, "updated address: %s/%u (valid for %s)",
- buf, address->prefixlen,
- strna(valid_str));
+ log_link_debug(link, "updated address: %s/%u (valid for %s)",
+ buf, address->prefixlen, valid_str);
LIST_PREPEND(addresses, link->addresses, address);
address = NULL;
break;
case RTM_DELADDR:
if (address_dropped) {
- log_debug_link(link, "removed address: %s/%u (valid for %s)",
- buf, address->prefixlen,
- strna(valid_str));
+ log_link_debug(link, "removed address: %s/%u (valid for %s)",
+ buf, address->prefixlen, valid_str);
link_save(link);
} else
- log_warning_link(link,
+ log_link_warning(link,
"removing non-existent address: %s/%u (valid for %s)",
- buf, address->prefixlen,
- strna(valid_str));
+ buf, address->prefixlen, valid_str);
break;
default:
link = *ret;
- log_debug_link(link, "link %d added", link->ifindex);
+ log_link_debug(link, "link %d added", link->ifindex);
r = sd_rtnl_message_new_addr(m->rtnl, &req, RTM_GETADDR, link->ifindex,
0);
sprintf(ifindex_str, "n%d", link->ifindex);
device = udev_device_new_from_device_id(m->udev, ifindex_str);
if (!device) {
- log_warning_link(link,
+ 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, "link pending udev initialization...");
+ log_link_debug(link, "link pending udev initialization...");
return 0;
}
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");
+ log_link_info(link, "link readded");
link->state = 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);
link->mtu = mtu;
if (!link->original_mtu) {
link->original_mtu = mtu;
- log_debug_link(link, "saved original MTU: %"
+ log_link_debug(link, "saved original MTU: %"
PRIu32, link->original_mtu);
}
r = sd_dhcp_client_set_mtu(link->dhcp_client,
link->mtu);
if (r < 0) {
- log_warning_link(link,
+ log_link_warning(link,
"Could not update MTU in DHCP client: %s",
strerror(-r));
return r;
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,
+ 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);
+ (const uint8_t *) &link->mac,
+ sizeof (link->mac),
+ ARPHRD_ETHER);
if (r < 0) {
- log_warning_link(link,
+ 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,
+ 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);
+
+ r = link_update_flags(link, m);
+ if (r < 0)
+ return r;
+
+ carrier_gained = !had_carrier && link_has_carrier(link);
+ carrier_lost = had_carrier && !link_has_carrier(link);
+
+ 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;
+ }
+ }
+ } else if (carrier_lost) {
+ log_link_info(link, "lost carrier");
+
+ r = link_stop_clients(link);
+ if (r < 0) {
+ link_enter_failed(link);
+ return r;
+ }
+ }
+
+ return 0;
}
static void link_update_operstate(Link *link) {
if (link->kernel_operstate == IF_OPER_DORMANT)
link->operstate = LINK_OPERSTATE_DORMANT;
- else if (link_has_carrier(link->flags, link->kernel_operstate)) {
+ 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;
}
admin_state, oper_state);
if (link->network) {
- char **address;
- char **domain;
+ 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) {
r = sd_dhcp_lease_get_dns(link->dhcp_lease, &addresses);
if (r > 0) {
+ if (space)
+ fputc(' ', f);
serialize_in_addrs(f, addresses, r);
- if (link->network->dns)
- fputs(" ", f);
}
}
- STRV_FOREACH(address, link->network->dns)
- fprintf(f, "%s%s", *address,
- (address + 1 ? " " : ""));
-
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) {
r = sd_dhcp_lease_get_ntp(link->dhcp_lease, &addresses);
if (r > 0) {
+ if (space)
+ fputc(' ', f);
serialize_in_addrs(f, addresses, r);
- if (link->network->ntp)
- fputs(" ", f);
}
}
- STRV_FOREACH(address, link->network->ntp)
- fprintf(f, "%s%s", *address,
- (address + 1 ? " " : ""));
-
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) {
r = sd_dhcp_lease_get_domainname(link->dhcp_lease, &domainname);
if (r >= 0) {
+ if (space)
+ fputc(' ', f);
fputs(domainname, f);
- if (link->network->domains)
- fputs(" ", f);
}
}
- STRV_FOREACH(domain, link->network->domains)
- fprintf(f, "%s%s", *domain,
- (domain + 1 ? " " : ""));
-
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 fail;
return 0;
fail:
- log_error_link(link, "Failed to save link data to %s: %s", link->state_file, strerror(-r));
+ 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;