diff options
Diffstat (limited to 'src')
-rw-r--r-- | src/network/networkd-link.c | 179 |
1 files changed, 46 insertions, 133 deletions
diff --git a/src/network/networkd-link.c b/src/network/networkd-link.c index 87bdd85644..d633399890 100644 --- a/src/network/networkd-link.c +++ b/src/network/networkd-link.c @@ -36,9 +36,6 @@ #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); - static int link_new(Manager *manager, sd_rtnl_message *message, Link **ret) { _cleanup_link_unref_ Link *link = NULL; uint16_t type; @@ -205,9 +202,7 @@ static int link_stop_clients(Link *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)); @@ -215,9 +210,7 @@ static int link_stop_clients(Link *link) { } } - 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)); @@ -225,9 +218,7 @@ static int link_stop_clients(Link *link) { } } - if (link->network->dhcp_server) { - assert(link->dhcp_server); - + 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", strerror(-r)); @@ -235,8 +226,7 @@ static int link_stop_clients(Link *link) { } } - 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); @@ -439,6 +429,20 @@ static int link_set_dhcp_routes(Link *link) { return 0; } +static bool ipv4ll_is_bound(sd_ipv4ll *ll) { + int r; + struct in_addr addr; + + if (!ll) + return false; + + r = sd_ipv4ll_get_address(ll, &addr); + if (r < 0) + return false; + + return true; +} + static int link_enter_set_routes(Link *link) { Route *rt; int r; @@ -449,8 +453,9 @@ static int link_enter_set_routes(Link *link) { link->state = LINK_STATE_SETTING_ROUTES; - if (!link->network->static_routes && !link->dhcp_lease && - (!link->ipv4ll || ipv4ll_is_bound(link->ipv4ll) == false)) + if (!link->network->static_routes && + !link->dhcp_lease && + !ipv4ll_is_bound(link->ipv4ll)) return link_enter_configured(link); log_debug_link(link, "setting routes"); @@ -467,31 +472,29 @@ static int link_enter_set_routes(Link *link) { link->route_messages ++; } - if (link->ipv4ll && !link->dhcp_lease) { + if (ipv4ll_is_bound(link->ipv4ll)) { _cleanup_route_free_ Route *route = NULL; - if (r != -ENOENT) { - r = route_new_dynamic(&route, RTPROT_STATIC); - 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_new_dynamic(&route, RTPROT_STATIC); + if (r < 0) { + log_error_link(link, "Could not allocate route: %s", + strerror(-r)); + return r; + } - 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; - } + route->family = AF_INET; + route->scope = RT_SCOPE_LINK; + route->metrics = IPV4LL_ROUTE_METRIC; - link->route_messages ++; + 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) { @@ -662,8 +665,9 @@ static int link_enter_set_addresses(Link *link) { link->state = LINK_STATE_SETTING_ADDRESSES; - if (!link->network->static_addresses && !link->dhcp_lease && - (!link->ipv4ll || ipv4ll_is_bound(link->ipv4ll) == false)) + if (!link->network->static_addresses && + !link->dhcp_lease && + !ipv4ll_is_bound(link->ipv4ll)) return link_enter_set_routes(link); log_debug_link(link, "setting addresses"); @@ -680,7 +684,7 @@ static int link_enter_set_addresses(Link *link) { link->addr_messages ++; } - if (link->ipv4ll && !link->dhcp_lease) { + if (link->ipv4ll) { _cleanup_address_free_ Address *ll_addr = NULL; struct in_addr addr; @@ -778,29 +782,6 @@ static int link_enter_set_addresses(Link *link) { return 0; } -static int address_update_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; - - 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); - - return 1; -} - static int address_drop_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata) { _cleanup_link_unref_ Link *link = userdata; int r; @@ -1197,17 +1178,6 @@ static void dhcp_handler(sd_dhcp_client *client, int event, void *userdata) { } } - 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); @@ -1222,16 +1192,6 @@ static void dhcp_handler(sd_dhcp_client *client, int event, void *userdata) { 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) @@ -1244,40 +1204,6 @@ static void dhcp_handler(sd_dhcp_client *client, int event, void *userdata) { 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; - - log_debug_link(link, "IPv4 link-local %s %u.%u.%u.%u", - deprecate ? "deprecate" : "approve", - ADDRESS_FMT_VAL(addr)); - - r = address_new_dynamic(&address); - if (r < 0) { - log_error_link(link, "Could not allocate address: %s", strerror(-r)); - 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; @@ -1322,18 +1248,6 @@ static int ipv4ll_address_lost(Link *link) { 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; @@ -1726,8 +1640,6 @@ static int link_joined(Link *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) { @@ -1763,7 +1675,8 @@ static int netdev_join_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata NULL); link_enter_failed(link); return 1; - } + } else + log_debug_link(link, "joined netdev"); if (link->enslaving <= 0) link_joined(link); @@ -1923,7 +1836,7 @@ static int link_configure(Link *link) { return r; if (link->network->dhcp_mtu) { - r = sd_dhcp_client_set_request_option(link->dhcp_client, 26); + r = sd_dhcp_client_set_request_option(link->dhcp_client, DHCP_OPTION_INTERFACE_MTU); if (r < 0) return r; } |