diff options
Diffstat (limited to 'src/network/networkd-link.c')
| -rw-r--r-- | src/network/networkd-link.c | 158 |
1 files changed, 158 insertions, 0 deletions
diff --git a/src/network/networkd-link.c b/src/network/networkd-link.c index 5b2dabc0d0..5ab7aa7d19 100644 --- a/src/network/networkd-link.c +++ b/src/network/networkd-link.c @@ -125,6 +125,8 @@ static void link_free(Link *link) { sd_ipv4ll_unref(link->ipv4ll); + sd_dhcp6_client_unref(link->dhcp6_client); + hashmap_remove(link->manager->links, &link->ifindex); free(link->ifname); @@ -233,6 +235,16 @@ static int link_stop_clients(Link *link) { } } + if (link->network->dhcp6) { + assert(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)); + r = k; + } + } + return r; } @@ -1277,6 +1289,104 @@ static void ipv4ll_handler(sd_ipv4ll *ll, int event, void *userdata){ } } +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; + } +} + +static void icmp6_router_handler(sd_icmp6_nd *nd, int event, void *userdata) { + 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; + + 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; + } + + r = sd_dhcp6_client_set_index(link->dhcp6_client, link->ifindex); + if (r < 0) { + link->dhcp6_client = sd_dhcp6_client_unref(link->dhcp6_client); + return; + } + + r = sd_dhcp6_client_set_callback(link->dhcp6_client, dhcp6_handler, + link); + if (r < 0) { + link->dhcp6_client = sd_dhcp6_client_unref(link->dhcp6_client); + return; + } + + 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; @@ -1311,6 +1421,18 @@ static int link_acquire_conf(Link *link) { } } + if (link->network->dhcp6) { + 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; + } + } + return 0; } @@ -1793,6 +1915,32 @@ static int link_configure(Link *link) { return r; } + if (link->network->dhcp6) { + 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 (r < 0) + return r; + + r = sd_icmp6_nd_set_mac(link->icmp6_router_discovery, + &link->mac); + if (r < 0) + return r; + + r = sd_icmp6_nd_set_index(link->icmp6_router_discovery, + link->ifindex); + if (r < 0) + return r; + + r = sd_icmp6_nd_set_callback(link->icmp6_router_discovery, + icmp6_router_handler, link); + if (r < 0) + return r; + } + if (link_has_carrier(link->flags, link->kernel_operstate)) { r = link_acquire_conf(link); if (r < 0) @@ -2134,6 +2282,16 @@ int link_update(Link *link, sd_rtnl_message *m) { return r; } } + + if (link->dhcp6_client) { + r = sd_dhcp6_client_set_mac(link->dhcp6_client, + &link->mac); + if (r < 0) { + log_warning_link(link, "Could not update MAC address in DHCPv6 client: %s", + strerror(-r)); + return r; + } + } } } |