示例#1
0
static void test_prefixes_cb(sd_icmp6_nd *nd, int event, void *userdata) {
        sd_event *e = userdata;
        struct {
                struct in6_addr addr;
                uint8_t prefixlen;
                bool success;
        } addrs[] = {
                { { { { 0x20, 0x01, 0x0d, 0xb8, 0xde, 0xad, 0xbe, 0xef,
                        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } } },
                  63, true },
                { { { { 0x20, 0x01, 0x0d, 0xb8, 0xde, 0xad, 0x0d, 0xad,
                        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } } },
                  64, false },
                { { { { 0x20, 0x01, 0x0d, 0xb8, 0x0b, 0x16, 0xd0, 0x0d,
                        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } } },
                  60, true },
                { { { { 0x20, 0x01, 0x0d, 0xb8, 0x00, 0x9d, 0xab, 0xcd,
                        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } } },
                  64, true },
                { { { { 0x20, 0x01, 0x0d, 0xb8, 0xde, 0xad, 0xbe, 0xed,
                        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 } } },
                  63, false },
        };
        uint8_t prefixlen;
        unsigned int i;

        for (i = 0; i < ELEMENTSOF(addrs); i++) {
                printf("  %s prefix %02x%02x:%02x%02x:%02x%02x:%02x%02x",
                        __FUNCTION__,
                        addrs[i].addr.s6_addr[0], addrs[i].addr.s6_addr[1],
                        addrs[i].addr.s6_addr[2], addrs[i].addr.s6_addr[3],
                        addrs[i].addr.s6_addr[4], addrs[i].addr.s6_addr[5],
                        addrs[i].addr.s6_addr[6], addrs[i].addr.s6_addr[7]);

                if (addrs[i].success) {
                        assert_se(sd_icmp6_ra_get_prefixlen(nd, &addrs[i].addr,
                                                                &prefixlen) >= 0);
                        assert_se(addrs[i].prefixlen == prefixlen);
                        printf("/%d onlink\n", prefixlen);
                } else {
                        assert_se(sd_icmp6_ra_get_prefixlen(nd, &addrs[i].addr,
                                                                &prefixlen) == -EADDRNOTAVAIL);
                        printf("/128 offlink\n");
                }
        }

        send_ra_function = send_ra_short_prefix;
        assert_se(sd_icmp6_nd_set_callback(nd, test_short_prefix_cb, e) >= 0);
        assert_se(sd_icmp6_nd_stop(nd) >= 0);
        assert_se(sd_icmp6_router_solicitation_start(nd) >= 0);
}
示例#2
0
static int dhcp6_lease_address_acquired(sd_dhcp6_client *client, Link *link) {
        int r;
        sd_dhcp6_lease *lease;
        struct in6_addr ip6_addr;
        uint32_t lifetime_preferred, lifetime_valid;
        uint8_t prefixlen;

        r = sd_dhcp6_client_get_lease(client, &lease);
        if (r < 0)
                return r;

        sd_dhcp6_lease_reset_address_iter(lease);

        while (sd_dhcp6_lease_get_address(lease, &ip6_addr,
                                                &lifetime_preferred,
                                                &lifetime_valid) >= 0) {

                r = sd_icmp6_ra_get_prefixlen(link->icmp6_router_discovery,
                                        &ip6_addr, &prefixlen);
                if (r < 0 && r != -EADDRNOTAVAIL) {
                        log_link_warning_errno(link, r, "Could not get prefix information: %m");
                        return r;
                }

                if (r == -EADDRNOTAVAIL)
                        prefixlen = 128;

                r = dhcp6_address_change(link, &ip6_addr, prefixlen,
                                        lifetime_preferred, lifetime_valid);
                if (r < 0)
                        return r;
        }

        return 0;
}