#include "util.h"
#include "virt.h"
#include "fileio.h"
+#include "socket-util.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 "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;
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;
- }
+ if (r < 0)
+ return log_link_warning_errno(link, r, "Could not get link flags: %m");
r = sd_rtnl_message_read_u8(m, IFLA_OPERSTATE, &operstate);
if (r < 0)
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",
+ 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),
* printing 20 */
if (unknown_flags_added)
log_link_debug(link,
- "unknown link flags gained: %#.5x (ignoring)",
+ "Unknown link flags gained: %#.5x (ignoring)",
unknown_flags_added);
if (unknown_flags_removed)
log_link_debug(link,
- "unknown link flags lost: %#.5x (ignoring)",
+ "Unknown link flags lost: %#.5x (ignoring)",
unknown_flags_removed);
}
link->n_ref = 1;
link->manager = manager;
link->state = LINK_STATE_PENDING;
+ link->rtnl_extended_attrs = true;
link->ifindex = ifindex;
link->ifname = strdup(ifname);
if (!link->ifname)
static void link_free(Link *link) {
Address *address;
+ Iterator i;
+ Link *carrier;
if (!link)
return;
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);
+ HASHMAP_FOREACH (carrier, link->bound_to_links, i)
+ hashmap_remove(link->bound_to_links, INT_TO_PTR(carrier->ifindex));
+ hashmap_free(link->bound_to_links);
+
+ HASHMAP_FOREACH (carrier, link->bound_by_links, i)
+ hashmap_remove(link->bound_by_links, INT_TO_PTR(carrier->ifindex));
+ hashmap_free(link->bound_by_links);
+
free(link);
}
return;
}
-void link_drop(Link *link) {
- if (!link || link->state == LINK_STATE_LINGER)
- return;
-
- link_set_state(link, LINK_STATE_LINGER);
-
- log_link_debug(link, "link removed");
-
- link_unref(link);
-
- return;
-}
-
static void link_enter_unmanaged(Link *link) {
assert(link);
- log_link_debug(link, "unmanaged");
+ log_link_debug(link, "Unmanaged");
link_set_state(link, LINK_STATE_UNMANAGED);
if (link->dhcp_client) {
k = sd_dhcp_client_stop(link->dhcp_client);
- if (k < 0) {
- log_link_warning(link, "Could not stop DHCPv4 client: %s",
- strerror(-r));
- r = k;
- }
+ if (k < 0)
+ r = log_link_warning_errno(link, r, "Could not stop DHCPv4 client: %m");
}
if (link->ipv4ll) {
k = sd_ipv4ll_stop(link->ipv4ll);
- if (k < 0) {
- log_link_warning(link, "Could not stop IPv4 link-local: %s",
- strerror(-r));
- r = k;
- }
+ if (k < 0)
+ r = log_link_warning_errno(link, r, "Could not stop IPv4 link-local: %m");
}
if(link->icmp6_router_discovery) {
-
if (link->dhcp6_client) {
k = sd_dhcp6_client_stop(link->dhcp6_client);
- if (k < 0) {
- log_link_warning(link, "Could not stop DHCPv6 client: %s",
- strerror(-r));
- r = k;
- }
+ if (k < 0)
+ r = log_link_warning_errno(link, r, "Could not stop DHCPv6 client: %m");
}
k = sd_icmp6_nd_stop(link->icmp6_router_discovery);
- if (k < 0) {
- log_link_warning(link,
- "Could not stop ICMPv6 router discovery: %s",
- strerror(-r));
- r = k;
- }
+ if (k < 0)
+ r = log_link_warning_errno(link, r, "Could not stop ICMPv6 router discovery: %m");
}
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;
- }
+ if (k < 0)
+ r = log_link_warning_errno(link, r, "Could not stop LLDP: %m");
}
return r;
if (IN_SET(link->state, LINK_STATE_FAILED, LINK_STATE_LINGER))
return;
- log_link_warning(link, "failed");
+ log_link_warning(link, "Failed");
link_set_state(link, LINK_STATE_FAILED);
assert(link->network);
assert(link->state == LINK_STATE_SETTING_ROUTES);
- log_link_info(link, "link configured");
+ log_link_info(link, "Configured");
link_set_state(link, LINK_STATE_CONFIGURED);
r = sd_rtnl_message_get_errno(m);
if (r < 0 && r != -EEXIST)
- log_link_warning_errno(link, -r, "%-*s: could not set route: %m", IFNAMSIZ, link->ifname);
+ log_link_warning_errno(link, r, "%-*s: could not set route: %m", IFNAMSIZ, link->ifname);
if (link->link_messages == 0) {
- log_link_debug(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_link_warning(link,
- "could not set routes: %s",
- strerror(-r));
+ log_link_warning_errno(link, r, "Could not set routes: %m");
link_enter_failed(link);
return r;
}
link->static_configured = true;
link_client_handler(link);
} else
- log_link_debug(link, "setting routes");
+ log_link_debug(link, "Setting routes");
return 0;
}
r = sd_rtnl_message_get_errno(m);
if (r < 0 && r != -ESRCH)
- log_link_warning_errno(link, -r, "%-*s: could not drop route: %m", IFNAMSIZ, link->ifname);
+ log_link_warning_errno(link, r, "%-*s: could not drop route: %m", IFNAMSIZ, link->ifname);
return 1;
}
r = sd_rtnl_message_get_errno(m);
if (r < 0 && r != -EEXIST)
- log_link_warning_errno(link, -r, "%-*s: could not set address: %m", IFNAMSIZ, link->ifname);
+ 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->link_messages == 0) {
- log_link_debug(link, "addresses set");
+ log_link_debug(link, "Addresses set");
link_enter_set_routes(link);
}
address = link_find_dhcp_server_address(link);
if (!address) {
- log_link_warning(link,
- "Failed to find suitable address for DHCPv4 server instance.");
+ log_link_warning(link, "Failed to find suitable address for DHCPv4 server instance.");
link_enter_failed(link);
return 0;
}
r = sd_dhcp_server_start(link->dhcp_server);
if (r < 0) {
- log_link_warning(link, "could not start DHCPv4 server "
- "instance: %s", strerror(-r));
+ log_link_warning_errno(link, r, "Could not start DHCPv4 server instance: %m");
link_enter_failed(link);
return 0;
}
- log_link_debug(link, "offering DHCPv4 leases");
+ log_link_debug(link, "Offering DHCPv4 leases");
}
- if (link->link_messages == 0) {
+ if (link->link_messages == 0)
link_enter_set_routes(link);
- } else
- log_link_debug(link, "setting addresses");
+ else
+ log_link_debug(link, "Setting addresses");
return 0;
}
r = sd_rtnl_message_get_errno(m);
if (r < 0 && r != -EADDRNOTAVAIL)
- log_link_warning_errno(link, -r, "%-*s: could not drop address: %m", IFNAMSIZ, link->ifname);
+ log_link_warning_errno(link, r, "%-*s: could not drop address: %m", IFNAMSIZ, link->ifname);
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));
+ log_link_error_errno(link, r, "Failed to add MAC entry to static MAC table: %m");
break;
}
}
_cleanup_link_unref_ Link *link = userdata;
int r;
- log_link_debug(link, "set link");
+ 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);
+ log_link_error_errno(link, r, "Could not join netdev: %m");
link_enter_failed(link);
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_message *m, void *userdata, sd_bus_error *ret_error) {
_cleanup_link_unref_ Link *link = userdata;
int r;
+ assert(m);
assert(link);
if (IN_SET(link->state, LINK_STATE_FAILED, LINK_STATE_LINGER))
r = sd_bus_message_get_errno(m);
if (r > 0)
- log_link_warning(link, "Could not set hostname: %s",
- strerror(r));
+ log_link_warning_errno(link, r, "Could not set hostname: %m");
return 1;
}
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.");
+ 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_link_error(link, "Could not set transient hostname: %s",
- strerror(-r));
- return r;
- }
+ if (r < 0)
+ return log_link_error_errno(link, r, "Could not set transient hostname: %m");
link_ref(link);
r = sd_rtnl_message_get_errno(m);
if (r < 0)
- log_link_warning_errno(link, -r, "%-*s: could not set MTU: %m", IFNAMSIZ, link->ifname);
+ 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_link_debug(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_link_error(link, "Could not allocate RTM_SETLINK message");
- return r;
- }
+ r = sd_rtnl_message_new_link(link->manager->rtnl, &req, RTM_SETLINK, link->ifindex);
+ if (r < 0)
+ return log_link_error_errno(link, r, "Could not allocate RTM_SETLINK message: %m");
r = sd_rtnl_message_append_u32(req, IFLA_MTU, mtu);
- if (r < 0) {
- log_link_error(link, "Could not append MTU: %s", strerror(-r));
- return r;
- }
+ if (r < 0)
+ return log_link_error_errno(link, r, "Could not append MTU: %m");
- r = sd_rtnl_call_async(link->manager->rtnl, req, set_mtu_handler, link,
- 0, NULL);
- if (r < 0) {
- log_link_error(link,
- "Could not send rtnetlink message: %s",
- strerror(-r));
- return r;
- }
+ r = sd_rtnl_call_async(link->manager->rtnl, req, set_mtu_handler, link, 0, NULL);
+ if (r < 0)
+ return log_link_error_errno(link, r, "Could not send rtnetlink message: %m");
link_ref(link);
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_new_link(link->manager->rtnl, &req, RTM_SETLINK, link->ifindex);
+ if (r < 0)
+ return log_link_error_errno(link, r, "Could not allocate RTM_SETLINK message: %m");
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 (r < 0)
+ return log_link_error_errno(link, r, "Could not set message family: %m");
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 (r < 0)
+ return log_link_error_errno(link, r, "Could not append IFLA_PROTINFO attribute: %m");
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 (r < 0)
+ return log_link_error_errno(link, r, "Could not append IFLA_BRPORT_COST attribute: %m");
}
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;
- }
+ if (r < 0)
+ return log_link_error_errno(link, r, "Could not append IFLA_LINKINFO attribute: %m");
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;
- }
+ if (r < 0)
+ return log_link_error_errno(link, r, "Could not send rtnetlink message: %m");
link_ref(link);
r = sd_lldp_save(link->lldp, link->lldp_file);
if (r < 0)
- log_link_warning(link, "could not save LLDP");
+ log_link_warning_errno(link, r, "Could not save LLDP: %m");
}
if (link_ipv4ll_enabled(link)) {
assert(link->ipv4ll);
- log_link_debug(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_link_warning(link, "could not acquire IPv4 "
- "link-local address");
- return r;
- }
+ if (r < 0)
+ return log_link_warning_errno(link, r, "Could not acquire IPv4 link-local address: %m");
}
if (link_dhcp4_enabled(link)) {
assert(link->dhcp_client);
- log_link_debug(link, "acquiring DHCPv4 lease");
+ log_link_debug(link, "Acquiring DHCPv4 lease");
r = sd_dhcp_client_start(link->dhcp_client);
- if (r < 0) {
- log_link_warning(link, "could not acquire DHCPv4 "
- "lease");
- return r;
- }
+ if (r < 0)
+ return log_link_warning_errno(link, r, "Could not acquire DHCPv4 lease: %m");
}
if (link_dhcp6_enabled(link)) {
assert(link->icmp6_router_discovery);
- log_link_debug(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_link_warning(link,
- "could not start IPv6 router discovery");
- return r;
- }
+ if (r < 0)
+ return log_link_warning_errno(link, r, "Could not start IPv6 router discovery: %m");
}
if (link_lldp_enabled(link)) {
log_link_debug(link, "Starting LLDP");
r = sd_lldp_start(link->lldp);
- if (r < 0) {
- log_link_warning(link, "could not start LLDP ");
- return r;
- }
+ if (r < 0)
+ return log_link_warning_errno(link, r, "Could not start LLDP: %m");
}
return 0;
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_link_warning_errno(link, -r, "%-*s: could not bring up interface: %m", IFNAMSIZ, link->ifname);
- }
+ 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);
return 1;
}
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->manager);
assert(link->manager->rtnl);
- log_link_debug(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)
+ return log_link_error_errno(link, r, "Could not allocate RTM_SETLINK message: %m");
+
+ r = sd_rtnl_message_link_set_flags(req, IFF_UP, IFF_UP);
+ if (r < 0)
+ return log_link_error_errno(link, r, "Could not set link flags: %m");
+
+ if (link->network->mac) {
+ r = sd_rtnl_message_append_ether_addr(req, IFLA_ADDRESS, link->network->mac);
+ if (r < 0)
+ return log_link_error_errno(link, r, "Could not set MAC address: %m");
+ }
+
+ if (link->network->mtu) {
+ r = sd_rtnl_message_append_u32(req, IFLA_MTU, link->network->mtu);
+ if (r < 0)
+ return log_link_error_errno(link, r, "Could not set MTU: %m");
+ }
+
+ r = sd_rtnl_message_open_container(req, IFLA_AF_SPEC);
+ if (r < 0)
+ return log_link_error_errno(link, r, "Could not open IFLA_AF_SPEC container: %m");
+
+ if (socket_ipv6_is_supported()) {
+ /* if the kernel lacks ipv6 support setting IFF_UP fails if any ipv6 options are passed */
+ r = sd_rtnl_message_open_container(req, AF_INET6);
+ if (r < 0)
+ return log_link_error_errno(link, r, "Could not open AF_INET6 container: %m");
+
+ 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)
+ return log_link_error_errno(link, r, "Could not append IFLA_INET6_ADDR_GEN_MODE: %m");
+
+ 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)
+ return log_link_error_errno(link, r, "Could not append IFLA_INET6_TOKEN: %m");
+ }
+
+ r = sd_rtnl_message_close_container(req);
+ if (r < 0)
+ return log_link_error_errno(link, r, "Could not close AF_INET6 container: %m");
+ }
+
+ r = sd_rtnl_message_close_container(req);
+ if (r < 0)
+ return log_link_error_errno(link, r, "Could not close IFLA_AF_SPEC container: %m");
+
+ r = sd_rtnl_call_async(link->manager->rtnl, req, link_up_handler, link, 0, NULL);
+ if (r < 0)
+ return log_link_error_errno(link, r, "Could not send rtnetlink message: %m");
+
+ link_ref(link);
+
+ return 0;
+}
+
+static int link_down_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)
+ log_link_warning_errno(link, r, "%-*s: could not bring down interface: %m", IFNAMSIZ, link->ifname);
+
+ return 1;
+}
+
+static int link_down(Link *link) {
+ _cleanup_rtnl_message_unref_ sd_rtnl_message *req = NULL;
+ int r;
+
+ assert(link);
+ assert(link->manager);
+ assert(link->manager->rtnl);
+
+ log_link_debug(link, "Bringing link down");
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;
+ if (r < 0)
+ return log_link_error_errno(link, r, "Could not allocate RTM_SETLINK message: %m");
+
+ r = sd_rtnl_message_link_set_flags(req, 0, IFF_UP);
+ if (r < 0)
+ return log_link_error_errno(link, r, "Could not set link flags: %m");
+
+ r = sd_rtnl_call_async(link->manager->rtnl, req, link_down_handler, link, 0, NULL);
+ if (r < 0)
+ return log_link_error_errno(link, r, "Could not send rtnetlink message: %m");
+
+ link_ref(link);
+
+ return 0;
+}
+
+static int link_handle_bound_to_list(Link *link) {
+ Link *l;
+ Iterator i;
+ int r;
+ bool required_up = false;
+ bool link_is_up = false;
+
+ assert(link);
+
+ if (hashmap_isempty(link->bound_to_links))
+ return 0;
+
+ if (link->flags & IFF_UP)
+ link_is_up = true;
+
+ HASHMAP_FOREACH (l, link->bound_to_links, i)
+ if (link_has_carrier(l)) {
+ required_up = true;
+ break;
+ }
+
+ if (!required_up && link_is_up) {
+ r = link_down(link);
+ if (r < 0)
+ return r;
+ } else if (required_up && !link_is_up) {
+ r = link_up(link);
+ if (r < 0)
+ return r;
}
- r = sd_rtnl_message_link_set_flags(req, IFF_UP, IFF_UP);
- if (r < 0) {
- log_link_error(link, "Could not set link flags: %s",
- strerror(-r));
+ return 0;
+}
+
+static int link_handle_bound_by_list(Link *link) {
+ Iterator i;
+ Link *l;
+ int r;
+
+ assert(link);
+
+ if (hashmap_isempty(link->bound_by_links))
+ return 0;
+
+ HASHMAP_FOREACH (l, link->bound_by_links, i) {
+ r = link_handle_bound_to_list(l);
+ if (r < 0)
+ return r;
+ }
+
+ return 0;
+}
+
+static int link_put_carrier(Link *link, Link *carrier, Hashmap **h) {
+ int r;
+
+ assert(link);
+ assert(carrier);
+
+ if (link == carrier)
+ return 0;
+
+ if (hashmap_get(*h, INT_TO_PTR(carrier->ifindex)))
+ return 0;
+
+ r = hashmap_ensure_allocated(h, NULL);
+ if (r < 0)
+ return r;
+
+ r = hashmap_put(*h, INT_TO_PTR(carrier->ifindex), carrier);
+ if (r < 0)
return r;
+
+ return 0;
+}
+
+static int link_new_bound_by_list(Link *link) {
+ Manager *m;
+ Link *carrier;
+ Iterator i;
+ int r;
+ bool list_updated = false;
+
+ assert(link);
+ assert(link->manager);
+
+ m = link->manager;
+
+ HASHMAP_FOREACH (carrier, m->links, i) {
+ if (!carrier->network)
+ continue;
+
+ if (strv_isempty(carrier->network->bind_carrier))
+ continue;
+
+ if (strv_fnmatch(carrier->network->bind_carrier, link->ifname, 0)) {
+ r = link_put_carrier(link, carrier, &link->bound_by_links);
+ if (r < 0)
+ return r;
+
+ list_updated = true;
+ }
}
- 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));
+ if (list_updated)
+ link_save(link);
+
+ HASHMAP_FOREACH (carrier, link->bound_by_links, i) {
+ r = link_put_carrier(carrier, link, &carrier->bound_to_links);
+ if (r < 0)
return r;
+
+ link_save(carrier);
+ }
+
+ return 0;
+}
+
+static int link_new_bound_to_list(Link *link) {
+ Manager *m;
+ Link *carrier;
+ Iterator i;
+ int r;
+ bool list_updated = false;
+
+ assert(link);
+ assert(link->manager);
+
+ if (!link->network)
+ return 0;
+
+ if (strv_isempty(link->network->bind_carrier))
+ return 0;
+
+ m = link->manager;
+
+ HASHMAP_FOREACH (carrier, m->links, i) {
+ if (strv_fnmatch(link->network->bind_carrier, carrier->ifname, 0)) {
+ r = link_put_carrier(link, carrier, &link->bound_to_links);
+ if (r < 0)
+ return r;
+
+ list_updated = true;
}
}
- 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));
+ if (list_updated)
+ link_save(link);
+
+ HASHMAP_FOREACH (carrier, link->bound_to_links, i) {
+ r = link_put_carrier(carrier, link, &carrier->bound_by_links);
+ if (r < 0)
return r;
- }
+
+ link_save(carrier);
}
- r = sd_rtnl_call_async(link->manager->rtnl, req, link_up_handler, link,
- 0, NULL);
- if (r < 0) {
- log_link_error(link,
- "Could not send rtnetlink message: %s",
- strerror(-r));
+ return 0;
+}
+
+static int link_new_carrier_maps(Link *link) {
+ int r;
+
+ r = link_new_bound_by_list(link);
+ if (r < 0)
return r;
- }
- link_ref(link);
+ r = link_handle_bound_by_list(link);
+ if (r < 0)
+ return r;
+
+ r = link_new_bound_to_list(link);
+ if (r < 0)
+ return r;
+
+ r = link_handle_bound_to_list(link);
+ if (r < 0)
+ return r;
return 0;
}
+static void link_free_bound_to_list(Link *link) {
+ Link *bound_to;
+ Iterator i;
+
+ HASHMAP_FOREACH (bound_to, link->bound_to_links, i) {
+ hashmap_remove(link->bound_to_links, INT_TO_PTR(bound_to->ifindex));
+
+ if (hashmap_remove(bound_to->bound_by_links, INT_TO_PTR(link->ifindex)))
+ link_save(bound_to);
+ }
+
+ return;
+}
+
+static void link_free_bound_by_list(Link *link) {
+ Link *bound_by;
+ Iterator i;
+
+ HASHMAP_FOREACH (bound_by, link->bound_by_links, i) {
+ hashmap_remove(link->bound_by_links, INT_TO_PTR(bound_by->ifindex));
+
+ if (hashmap_remove(bound_by->bound_to_links, INT_TO_PTR(link->ifindex))) {
+ link_save(bound_by);
+ link_handle_bound_to_list(bound_by);
+ }
+ }
+
+ return;
+}
+
+static void link_free_carrier_maps(Link *link) {
+ bool list_updated = false;
+
+ assert(link);
+
+ if (!hashmap_isempty(link->bound_to_links)) {
+ link_free_bound_to_list(link);
+ list_updated = true;
+ }
+
+ if (!hashmap_isempty(link->bound_by_links)) {
+ link_free_bound_by_list(link);
+ list_updated = true;
+ }
+
+ if (list_updated)
+ link_save(link);
+
+ return;
+}
+
+void link_drop(Link *link) {
+ if (!link || link->state == LINK_STATE_LINGER)
+ return;
+
+ link_set_state(link, LINK_STATE_LINGER);
+
+ link_free_carrier_maps(link);
+
+ log_link_debug(link, "Link removed");
+
+ link_unref(link);
+
+ return;
+}
+
static int link_joined(Link *link) {
int r;
assert(link);
assert(link->network);
- if (!(link->flags & IFF_UP)) {
+ if (!hashmap_isempty(link->bound_to_links)) {
+ r = link_handle_bound_to_list(link);
+ if (r < 0)
+ return r;
+ } else if (!(link->flags & IFF_UP)) {
r = link_up(link);
if (r < 0) {
link_enter_failed(link);
if(link->network->bridge) {
r = link_set_bridge(link);
- if (r < 0) {
- log_link_error(link,
- "Could not set bridge message: %s",
- strerror(-r));
- }
+ if (r < 0)
+ log_link_error_errno(link, r, "Could not set bridge message: %m");
}
return link_enter_set_addresses(link);
r = sd_rtnl_message_get_errno(m);
if (r < 0 && r != -EEXIST) {
- log_link_error_errno(link, -r, "%-*s: could not join netdev: %m", IFNAMSIZ, link->ifname);
+ 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");
+ log_link_debug(link, "Joined netdev");
if (link->enslaving <= 0)
link_joined(link);
return link_joined(link);
if (link->network->bond) {
- log_link_struct(link, LOG_DEBUG,
- "MESSAGE=%-*s: enslaving by '%s'",
- IFNAMSIZ,
- link->ifname, link->network->bond->ifname,
- NETDEVIF(link->network->bond),
- NULL);
-
- r = netdev_join(link->network->bond, link, &netdev_join_handler);
+ log_struct(LOG_DEBUG,
+ LOG_LINK_INTERFACE(link),
+ LOG_NETDEV_INTERFACE(link->network->bond),
+ LOG_LINK_MESSAGE(link, "Enslaving by '%s'", link->network->bond->ifname),
+ NULL);
+
+ r = netdev_join(link->network->bond, link, netdev_join_handler);
if (r < 0) {
- log_link_struct(link, LOG_WARNING,
- "MESSAGE=%-*s: could not join netdev '%s': %s",
- IFNAMSIZ,
- link->ifname, link->network->bond->ifname,
- strerror(-r),
- NETDEVIF(link->network->bond),
- NULL);
+ log_struct_errno(LOG_WARNING, r,
+ LOG_LINK_INTERFACE(link),
+ LOG_NETDEV_INTERFACE(link->network->bond),
+ LOG_LINK_MESSAGE(link, "Could not join netdev '%s': %m", link->network->bond->ifname),
+ NULL);
+
link_enter_failed(link);
return r;
}
}
if (link->network->bridge) {
- log_link_struct(link, LOG_DEBUG,
- "MESSAGE=%-*s: enslaving by '%s'",
- IFNAMSIZ,
- link->ifname, link->network->bridge->ifname,
- NETDEVIF(link->network->bridge),
- NULL);
-
- r = netdev_join(link->network->bridge, link,
- &netdev_join_handler);
+ log_struct(LOG_DEBUG,
+ LOG_LINK_INTERFACE(link),
+ LOG_NETDEV_INTERFACE(link->network->bridge),
+ LOG_LINK_MESSAGE(link, "Enslaving by '%s'", link->network->bridge->ifname),
+ NULL);
+
+ r = netdev_join(link->network->bridge, link, netdev_join_handler);
if (r < 0) {
- log_link_struct(link, LOG_WARNING,
- "MESSAGE=%-*s: could not join netdev '%s': %s",
- IFNAMSIZ,
- link->ifname, link->network->bridge->ifname,
- strerror(-r),
- NETDEVIF(link->network->bridge),
- NULL);
+ log_struct_errno(LOG_WARNING, r,
+ LOG_LINK_INTERFACE(link),
+ LOG_NETDEV_INTERFACE(link->network->bridge),
+ LOG_LINK_MESSAGE(link, "Could not join netdev '%s': %m", link->network->bridge->ifname),
+ NULL),
link_enter_failed(link);
return r;
}
}
HASHMAP_FOREACH(netdev, link->network->stacked_netdevs, i) {
- log_link_struct(link, LOG_DEBUG,
- "MESSAGE=%-*s: enslaving by '%s'",
- IFNAMSIZ,
- link->ifname, netdev->ifname, NETDEVIF(netdev),
- NULL);
- r = netdev_join(netdev, link, &netdev_join_handler);
+ log_struct(LOG_DEBUG,
+ LOG_LINK_INTERFACE(link),
+ LOG_NETDEV_INTERFACE(netdev),
+ LOG_LINK_MESSAGE(link, "Enslaving by '%s'", netdev->ifname),
+ NULL);
+
+ r = netdev_join(netdev, link, netdev_join_handler);
if (r < 0) {
- log_link_struct(link, LOG_WARNING,
- "MESSAGE=%-*s: could not join netdev '%s': %s",
- IFNAMSIZ,
- link->ifname, netdev->ifname,
- strerror(-r),
- NETDEVIF(netdev), NULL);
+ log_struct_errno(LOG_WARNING, r,
+ LOG_LINK_INTERFACE(link),
+ LOG_NETDEV_INTERFACE(netdev),
+ LOG_LINK_MESSAGE(link, "Could not join netdev '%s': %m", netdev->ifname),
+ NULL);
link_enter_failed(link);
return r;
}
static int link_set_ipv4_forward(Link *link) {
const char *p = NULL;
- bool b;
int r;
- b = link_ipv4_forward_enabled(link);
+ if (link->network->ip_forward == ADDRESS_FAMILY_KERNEL)
+ return 0;
p = strjoina("/proc/sys/net/ipv4/conf/", link->ifname, "/forwarding");
- r = write_string_file_no_create(p, one_zero(b));
+ r = write_string_file_no_create(p, one_zero(link_ipv4_forward_enabled(link)));
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)
- 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");
- }
- }
-
return 0;
}
const char *p = NULL;
int r;
+ /* Make this a NOP if IPv6 is not available */
+ if (!socket_ipv6_is_supported())
+ return 0;
+
+ if (link->network->ip_forward == ADDRESS_FAMILY_KERNEL)
+ return 0;
+
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)
if (link->state != LINK_STATE_PENDING)
return 1;
- log_link_debug(link, "link state is up-to-date");
+ log_link_debug(link, "Link state is up-to-date");
+
+ r = link_new_bound_by_list(link);
+ if (r < 0)
+ return r;
+
+ r = link_handle_bound_by_list(link);
+ if (r < 0)
+ return r;
r = network_get(link->manager, link->udev_device, link->ifname,
&link->mac, &network);
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");
+ log_link_debug(link, "Ignoring DHCP clients for loopback link");
if (network->dhcp_server)
- log_link_debug(link, "ignoring DHCP server for loopback link");
+ log_link_debug(link, "Ignoring DHCP server for loopback link");
}
r = network_apply(link->manager, network, link);
if (r < 0)
return r;
+ r = link_new_bound_to_list(link);
+ if (r < 0)
+ return r;
+
r = link_configure(link);
if (r < 0)
return r;
Link *link = NULL;
uint16_t type;
_cleanup_address_free_ Address *address = NULL;
+ unsigned char flags;
Address *existing;
char buf[INET6_ADDRSTRLEN], valid_buf[FORMAT_TIMESPAN_MAX];
const char *valid_str = NULL;
r = sd_rtnl_message_get_type(message, &type);
if (r < 0) {
- log_warning("rtnl: could not get message type");
+ log_warning_errno(r, "rtnl: could not get message type: %m");
+ return 0;
+ } else if (type != RTM_NEWADDR && type != RTM_DELADDR) {
+ log_warning("rtnl: received unexpected message type when processing address");
return 0;
}
r = sd_rtnl_message_addr_get_ifindex(message, &ifindex);
if (r < 0) {
- log_warning_errno(r, "rtnl: could not get ifindex: %m");
+ log_warning_errno(r, "rtnl: could not get ifindex from address: %m");
return 0;
} else if (ifindex <= 0) {
log_warning("rtnl: received address message with invalid ifindex: %d", ifindex);
r = sd_rtnl_message_addr_get_family(message, &address->family);
if (r < 0 || !IN_SET(address->family, AF_INET, AF_INET6)) {
- log_link_warning(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_link_warning(link, "rtnl: received address with invalid prefixlen, ignoring");
+ log_link_warning_errno(link, r, "rtnl: received address with invalid prefixlen, ignoring: %m");
return 0;
}
r = sd_rtnl_message_addr_get_scope(message, &address->scope);
if (r < 0) {
- log_link_warning(link, "rtnl: received address with invalid scope, ignoring");
+ log_link_warning_errno(link, r, "rtnl: received address with invalid scope, ignoring: %m");
return 0;
}
- r = sd_rtnl_message_addr_get_flags(message, &address->flags);
+ r = sd_rtnl_message_addr_get_flags(message, &flags);
if (r < 0) {
- log_link_warning(link, "rtnl: received address with invalid flags, ignoring");
+ log_link_warning_errno(link, r, "rtnl: received address with invalid flags, ignoring: %m");
return 0;
}
+ address->flags = flags;
switch (address->family) {
case AF_INET:
r = sd_rtnl_message_read_in_addr(message, IFA_LOCAL, &address->in_addr.in);
if (r < 0) {
- log_link_warning(link, "rtnl: received address without valid address, ignoring");
+ log_link_warning_errno(link, r, "rtnl: received address without valid address, ignoring: %m");
return 0;
}
case AF_INET6:
r = sd_rtnl_message_read_in6_addr(message, IFA_ADDRESS, &address->in_addr.in6);
if (r < 0) {
- log_link_warning(link, "rtnl: received address without valid address, ignoring");
+ log_link_warning_errno(link, r, "rtnl: received address without valid address, ignoring: %m");
return 0;
}
}
if (!inet_ntop(address->family, &address->in_addr, buf, INET6_ADDRSTRLEN)) {
- log_link_warning(link, "could not print address");
+ log_link_warning(link, "Could not print address");
return 0;
}
link = *ret;
- log_link_debug(link, "link %d added", link->ifindex);
+ 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%d", link->ifindex);
device = udev_device_new_from_device_id(m->udev, ifindex_str);
- if (!device) {
- log_link_warning(link,
- "could not find udev device: %m");
- return -errno;
- }
+ if (!device)
+ return log_link_warning_errno(link, errno, "Could not find udev device: %m");
if (udev_device_get_is_initialized(device) <= 0) {
/* not yet ready */
}
}
+ r = link_handle_bound_by_list(link);
+ if (r < 0)
+ return r;
+
return 0;
}
return r;
}
+ r = link_handle_bound_by_list(link);
+ if (r < 0)
+ return r;
+
return 0;
}
if (r < 0)
return r;
- log_link_info(link, "reset carrier");
+ log_link_info(link, "Reset carrier");
}
return 0;
if (link->state == LINK_STATE_LINGER) {
link_ref(link);
- log_link_info(link, "link readded");
+ log_link_info(link, "Link readded");
link_set_state(link, LINK_STATE_ENSLAVING);
+
+ r = link_new_carrier_maps(link);
+ if (r < 0)
+ return r;
}
r = sd_rtnl_message_read_string(m, IFLA_IFNAME, &ifname);
if (r >= 0 && !streq(ifname, link->ifname)) {
- log_link_info(link, "renamed to %s", ifname);
+ log_link_info(link, "Renamed to %s", ifname);
+
+ link_free_carrier_maps(link);
free(link->ifname);
link->ifname = strdup(ifname);
if (!link->ifname)
return -ENOMEM;
+
+ r = link_new_carrier_maps(link);
+ if (r < 0)
+ return r;
}
r = sd_rtnl_message_read_u32(m, IFLA_MTU, &mtu);
link->mtu = mtu;
if (!link->original_mtu) {
link->original_mtu = mtu;
- log_link_debug(link, "saved original MTU: %"
- PRIu32, link->original_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));
+ log_link_warning_errno(link, r, "Could not update MTU in DHCP client: %m");
return r;
}
}
if (link->ipv4ll) {
r = sd_ipv4ll_set_mac(link->ipv4ll, &link->mac);
- if (r < 0) {
- log_link_warning(link,
- "Could not update MAC address in IPv4LL client: %s",
- strerror(-r));
- return r;
- }
+ if (r < 0)
+ return log_link_warning_errno(link, r, "Could not update MAC address in IPv4LL client: %m");
}
if (link->dhcp_client) {
(const uint8_t *) &link->mac,
sizeof (link->mac),
ARPHRD_ETHER);
- if (r < 0) {
- log_link_warning(link,
- "Could not update MAC address in DHCP client: %s",
- strerror(-r));
- return r;
- }
+ if (r < 0)
+ return log_link_warning_errno(link, r, "Could not update MAC address in DHCP client: %m");
}
if (link->dhcp6_client) {
(const uint8_t *) &link->mac,
sizeof (link->mac),
ARPHRD_ETHER);
- if (r < 0) {
- log_link_warning(link,
- "Could not update MAC address in DHCPv6 client: %s",
- strerror(-r));
- return r;
- }
+ if (r < 0)
+ return log_link_warning_errno(link, r, "Could not update MAC address in DHCPv6 client: %m");
}
}
}
carrier_lost = had_carrier && !link_has_carrier(link);
if (carrier_gained) {
- log_link_info(link, "gained carrier");
+ log_link_info(link, "Gained carrier");
r = link_carrier_gained(link);
if (r < 0)
return r;
} else if (carrier_lost) {
- log_link_info(link, "lost carrier");
+ log_link_info(link, "Lost carrier");
r = link_carrier_lost(link);
if (r < 0)
r = fopen_temporary(link->state_file, &f, &temp_path);
if (r < 0)
- return r;
+ goto fail;
fchmod(fileno(f), 0644);
llmnr_support_to_string(link->network->llmnr));
}
+ if (!hashmap_isempty(link->bound_to_links)) {
+ Link *carrier;
+ Iterator i;
+ bool space = false;
+
+ fputs("CARRIER_BOUND_TO=", f);
+ HASHMAP_FOREACH(carrier, link->bound_to_links, i) {
+ if (space)
+ fputc(' ', f);
+ fputs(carrier->ifname, f);
+ space = true;
+ }
+
+ fputs("\n", f);
+ }
+
+ if (!hashmap_isempty(link->bound_by_links)) {
+ Link *carrier;
+ Iterator i;
+ bool space = false;
+
+ fputs("CARRIER_BOUND_BY=", f);
+ HASHMAP_FOREACH(carrier, link->bound_by_links, i) {
+ if (space)
+ fputc(' ', f);
+ fputs(carrier->ifname, f);
+ space = true;
+ }
+
+ fputs("\n", f);
+ }
+
if (link->dhcp_lease) {
assert(link->network);
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);
+ log_link_error_errno(link, r, "Failed to save link data to %s: %m", link->state_file);
+ (void) unlink(link->state_file);
+
+ if (temp_path)
+ (void) unlink(temp_path);
+
return r;
}
projects / thirdparty / systemd.git / blobdiff