static int dhcp4_update_address(Link *link,
struct in_addr *address,
struct in_addr *netmask,
uint32_t lifetime) {
_cleanup_address_free_ Address *addr = NULL;
unsigned prefixlen;
int r;
assert(address);
assert(netmask);
assert(lifetime);
prefixlen = in_addr_netmask_to_prefixlen(netmask);
r = address_new_dynamic(&addr);
if (r < 0)
return r;
addr->family = AF_INET;
addr->in_addr.in.s_addr = address->s_addr;
addr->cinfo.ifa_prefered = lifetime;
addr->cinfo.ifa_valid = lifetime;
addr->prefixlen = prefixlen;
addr->broadcast.s_addr = address->s_addr | ~netmask->s_addr;
/* use update rather than configure so that we will update the
* lifetime of an existing address if it has already been configured */
r = address_update(addr, link, &dhcp4_address_handler);
if (r < 0)
return r;
return 0;
}
static int dhcp6_address_update(Link *link, struct in6_addr *ip6_addr,
uint8_t prefixlen, uint32_t lifetime_preferred,
uint32_t lifetime_valid) {
int r;
_cleanup_address_free_ Address *addr = NULL;
r = address_new_dynamic(&addr);
if (r < 0)
return r;
addr->family = AF_INET6;
memcpy(&addr->in_addr.in6, ip6_addr, sizeof(*ip6_addr));
addr->flags = IFA_F_NOPREFIXROUTE;
addr->prefixlen = prefixlen;
addr->cinfo.ifa_prefered = lifetime_preferred;
addr->cinfo.ifa_valid = lifetime_valid;
log_link_struct(link, LOG_INFO, "MESSAGE=%-*s: DHCPv6 address "SD_ICMP6_ADDRESS_FORMAT_STR"/%d timeout preferred %d valid %d",
IFNAMSIZ,
link->ifname, SD_ICMP6_ADDRESS_FORMAT_VAL(addr->in_addr.in6),
addr->prefixlen, lifetime_preferred, lifetime_valid,
NULL);
r = address_update(addr, link, dhcp6_address_handler);
if (r < 0)
log_link_warning(link, "Could not assign DHCPv6 address: %s",
strerror(-r));
return r;
}