#define ADDRESSES_PER_LINK_MAX 2048U
#define STATIC_ADDRESSES_PER_NETWORK_MAX 1024U
+int generate_ipv6_eui_64_address(Link *link, struct in6_addr *ret) {
+ assert(link);
+ assert(ret);
+
+ /* see RFC4291 section 2.5.1 */
+ ret->s6_addr[8] = link->mac.ether_addr_octet[0];
+ ret->s6_addr[8] ^= 1 << 1;
+ ret->s6_addr[9] = link->mac.ether_addr_octet[1];
+ ret->s6_addr[10] = link->mac.ether_addr_octet[2];
+ ret->s6_addr[11] = 0xff;
+ ret->s6_addr[12] = 0xfe;
+ ret->s6_addr[13] = link->mac.ether_addr_octet[3];
+ ret->s6_addr[14] = link->mac.ether_addr_octet[4];
+ ret->s6_addr[15] = link->mac.ether_addr_octet[5];
+
+ return 0;
+}
+
int address_new(Address **ret) {
_cleanup_(address_freep) Address *address = NULL;
.scope = RT_SCOPE_UNIVERSE,
.cinfo.ifa_prefered = CACHE_INFO_INFINITY_LIFE_TIME,
.cinfo.ifa_valid = CACHE_INFO_INFINITY_LIFE_TIME,
+ .duplicate_address_detection = ADDRESS_FAMILY_IPV6,
+ .prefix_route = true,
};
*ret = TAKE_PTR(address);
hashmap_remove(address->network->addresses_by_section, address->section);
}
- if (address->link) {
+ if (address->link && !address->acd) {
set_remove(address->link->addresses, address);
set_remove(address->link->addresses_foreign, address);
memzero(&address->link->ipv6ll_address, sizeof(struct in6_addr));
}
+ sd_ipv4acd_unref(address->acd);
+
network_config_section_free(address->section);
free(address->label);
free(address);
}
}
-DEFINE_PRIVATE_HASH_OPS(address_hash_ops, Address, address_hash_func, address_compare_func);
+DEFINE_HASH_OPS(address_hash_ops, Address, address_hash_func, address_compare_func);
bool address_equal(Address *a1, Address *a2) {
if (a1 == a2)
/* Consider address tentative until we get the real flags from the kernel */
address->flags = IFA_F_TENTATIVE;
- r = set_ensure_allocated(addresses, &address_hash_ops);
- if (r < 0)
- return r;
-
- r = set_put(*addresses, address);
+ r = set_ensure_put(addresses, &address_hash_ops, address);
if (r < 0)
return r;
if (r == 0)
if (ret)
*ret = address;
-
- address = NULL;
-
+ TAKE_PTR(address);
return 0;
}
return r;
} else if (r == 0) {
/* Take over a foreign address */
- r = set_ensure_allocated(&link->addresses, &address_hash_ops);
- if (r < 0)
- return r;
-
- r = set_put(link->addresses, address);
+ r = set_ensure_put(&link->addresses, &address_hash_ops, address);
if (r < 0)
return r;
r = sd_netlink_message_get_errno(m);
if (r < 0 && r != -EADDRNOTAVAIL)
log_link_message_warning_errno(link, m, r, "Could not drop address");
+ else
+ (void) manager_rtnl_process_address(rtnl, m, link->manager);
return 1;
}
if (address->home_address)
address->flags |= IFA_F_HOMEADDRESS;
- if (address->duplicate_address_detection)
+ if (!FLAGS_SET(address->duplicate_address_detection, ADDRESS_FAMILY_IPV6))
address->flags |= IFA_F_NODAD;
if (address->manage_temporary_address)
address->flags |= IFA_F_MANAGETEMPADDR;
- if (address->prefix_route)
+ if (!address->prefix_route)
address->flags |= IFA_F_NOPREFIXROUTE;
if (address->autojoin)
return log_link_error_errno(link, r, "Could not add address: %m");
}
+ if (address->acd) {
+ assert(address->family == AF_INET);
+ if (DEBUG_LOGGING) {
+ _cleanup_free_ char *pretty = NULL;
+
+ (void) in_addr_to_string(address->family, &address->in_addr, &pretty);
+ log_link_debug(link, "Starting IPv4ACD client. Probing address %s", strna(pretty));
+ }
+
+ r = sd_ipv4acd_start(address->acd, true);
+ if (r < 0)
+ log_link_warning_errno(link, r, "Failed to start IPv4ACD client, ignoring: %m");
+ }
+
return 1;
}
+static void static_address_on_acd(sd_ipv4acd *acd, int event, void *userdata) {
+ _cleanup_free_ char *pretty = NULL;
+ Address *address;
+ Link *link;
+ int r;
+
+ assert(acd);
+ assert(userdata);
+
+ address = (Address *) userdata;
+ link = address->link;
+
+ (void) in_addr_to_string(address->family, &address->in_addr, &pretty);
+ switch (event) {
+ case SD_IPV4ACD_EVENT_STOP:
+ log_link_debug(link, "Stopping ACD client...");
+ return;
+
+ case SD_IPV4ACD_EVENT_BIND:
+ log_link_debug(link, "Successfully claimed address %s", strna(pretty));
+ link_check_ready(link);
+ break;
+
+ case SD_IPV4ACD_EVENT_CONFLICT:
+ log_link_warning(link, "DAD conflict. Dropping address %s", strna(pretty));
+ r = address_remove(address, link, NULL);
+ if (r < 0)
+ log_link_error_errno(link, r, "Failed to drop DAD conflicted address %s", strna(pretty));;
+
+ link_check_ready(link);
+ break;
+
+ default:
+ assert_not_reached("Invalid IPv4ACD event.");
+ }
+
+ sd_ipv4acd_stop(acd);
+
+ return;
+}
+
+int configure_ipv4_duplicate_address_detection(Link *link, Address *address) {
+ int r;
+
+ assert(link);
+ assert(address);
+ assert(address->family == AF_INET);
+ assert(!address->link && address->network);
+
+ address->link = link;
+
+ r = sd_ipv4acd_new(&address->acd);
+ if (r < 0)
+ return r;
+
+ r = sd_ipv4acd_attach_event(address->acd, NULL, 0);
+ if (r < 0)
+ return r;
+
+ r = sd_ipv4acd_set_ifindex(address->acd, link->ifindex);
+ if (r < 0)
+ return r;
+
+ r = sd_ipv4acd_set_mac(address->acd, &link->mac);
+ if (r < 0)
+ return r;
+
+ r = sd_ipv4acd_set_address(address->acd, &address->in_addr.in);
+ if (r < 0)
+ return r;
+
+ r = sd_ipv4acd_set_callback(address->acd, static_address_on_acd, address);
+ if (r < 0)
+ return r;
+
+ return 0;
+}
+
int config_parse_broadcast(
const char *unit,
const char *filename,
void *userdata) {
Network *network = userdata;
_cleanup_(address_free_or_set_invalidp) Address *n = NULL;
- unsigned k;
+ uint32_t k;
int r;
assert(filename);
if (r < 0)
return r;
- /* We accept only "forever", "infinity", or "0". */
- if (STR_IN_SET(rvalue, "forever", "infinity"))
+ /* We accept only "forever", "infinity", empty, or "0". */
+ if (STR_IN_SET(rvalue, "forever", "infinity", ""))
k = CACHE_INFO_INFINITY_LIFE_TIME;
else if (streq(rvalue, "0"))
k = 0;
}
n->cinfo.ifa_prefered = k;
- n = NULL;
+ TAKE_PTR(n);
return 0;
}
r = parse_boolean(rvalue);
if (r < 0) {
log_syntax(unit, LOG_ERR, filename, line, r,
- "Failed to parse address flag, ignoring: %s", rvalue);
+ "Failed to parse %s=, ignoring: %s", lvalue, rvalue);
return 0;
}
if (streq(lvalue, "HomeAddress"))
n->home_address = r;
- else if (streq(lvalue, "DuplicateAddressDetection"))
- n->duplicate_address_detection = r;
else if (streq(lvalue, "ManageTemporaryAddress"))
n->manage_temporary_address = r;
else if (streq(lvalue, "PrefixRoute"))
+ n->prefix_route = !r;
+ else if (streq(lvalue, "AddPrefixRoute"))
n->prefix_route = r;
else if (streq(lvalue, "AutoJoin"))
n->autojoin = r;
}
}
+ n->scope_set = true;
+ n = NULL;
+ return 0;
+}
+
+int config_parse_duplicate_address_detection(
+ const char *unit,
+ const char *filename,
+ unsigned line,
+ const char *section,
+ unsigned section_line,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+ Network *network = userdata;
+ _cleanup_(address_free_or_set_invalidp) Address *n = NULL;
+ AddressFamily a;
+ int r;
+
+ assert(filename);
+ assert(section);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ r = address_new_static(network, filename, section_line, &n);
+ if (r < 0)
+ return r;
+
+ r = parse_boolean(rvalue);
+ if (r >= 0) {
+ log_syntax(unit, LOG_WARNING, filename, line, 0,
+ "For historical reasons, %s=%s means %s=%s. "
+ "Please use 'both', 'ipv4', 'ipv6' or 'none' instead.",
+ lvalue, rvalue, lvalue, r ? "none" : "both");
+ n->duplicate_address_detection = r ? ADDRESS_FAMILY_NO : ADDRESS_FAMILY_YES;
+ n = NULL;
+ return 0;
+ }
+
+ a = duplicate_address_detection_address_family_from_string(rvalue);
+ if (a < 0) {
+ log_syntax(unit, LOG_ERR, filename, line, SYNTHETIC_ERRNO(EINVAL),
+ "Failed to parse %s=, ignoring: %s", lvalue, rvalue);
+ return 0;
+ }
+
+ n->duplicate_address_detection = a;
n = NULL;
return 0;
}
address->section->filename, address->section->line);
}
+ if (!address->scope_set && in_addr_is_localhost(address->family, &address->in_addr) > 0)
+ address->scope = RT_SCOPE_HOST;
+
return 0;
}
projects / thirdparty / systemd.git / blobdiff