Пример #1
0
static bool ipv4ll_address_is_valid(const struct in_addr *address) {
        uint32_t addr;

        assert(address);

        if (!in_addr_is_link_local(AF_INET, (const union in_addr_union *) address))
                return false;

        addr = be32toh(address->s_addr);

        if ((addr & 0x0000FF00) == 0x0000 ||
            (addr & 0x0000FF00) == 0xFF00)
                return false;

        return true;
}
Пример #2
0
int dhcp6_request_address(Link *link, int ir) {
        int r, inf_req;
        bool running;

        assert(link);
        assert(link->dhcp6_client);
        assert(in_addr_is_link_local(AF_INET6, (const union in_addr_union*)&link->ipv6ll_address) > 0);

        r = sd_dhcp6_client_is_running(link->dhcp6_client);
        if (r < 0)
                return r;
        else
                running = !!r;

        if (running) {
                r = sd_dhcp6_client_get_information_request(link->dhcp6_client, &inf_req);
                if (r < 0)
                        return r;

                if (inf_req == ir)
                        return 0;

                r = sd_dhcp6_client_stop(link->dhcp6_client);
                if (r < 0)
                        return r;
        } else {
                r = sd_dhcp6_client_set_local_address(link->dhcp6_client, &link->ipv6ll_address);
                if (r < 0)
                        return r;
        }

        r = sd_dhcp6_client_set_information_request(link->dhcp6_client, ir);
        if (r < 0)
                return r;

        r = sd_dhcp6_client_start(link->dhcp6_client);
        if (r < 0)
                return r;

        return 0;
}
Пример #3
0
static int radv_get_ip6dns(Network *network, struct in6_addr **dns,
                           size_t *n_dns) {
        _cleanup_free_ struct in6_addr *addresses = NULL;
        size_t i, n_addresses = 0, n_allocated = 0;

        assert(network);
        assert(dns);
        assert(n_dns);

        for (i = 0; i < network->n_dns; i++) {
                union in_addr_union *addr;

                if (network->dns[i].family != AF_INET6)
                        continue;

                addr = &network->dns[i].address;

                if (in_addr_is_null(AF_INET6, addr) ||
                    in_addr_is_link_local(AF_INET6, addr) ||
                    in_addr_is_localhost(AF_INET6, addr))
                        continue;

                if (!GREEDY_REALLOC(addresses, n_allocated, n_addresses + 1))
                        return -ENOMEM;

                addresses[n_addresses++] = addr->in6;
        }

        if (addresses) {
                *dns = addresses;
                addresses = NULL;

                *n_dns = n_addresses;
        }

        return n_addresses;
}