#include "odhcpd.h"
#include "dhcpv6.h"
+static const char *excluded_class = "HOMENET";
+
static void relay_client_request(struct sockaddr_in6 *source,
const void *data, size_t len, struct interface *iface);
static void handle_nested_message(uint8_t *data, size_t len,
- uint8_t **opts, uint8_t **end, struct iovec iov[6])
+ uint8_t **opts, uint8_t **end, struct iovec iov[9])
{
struct dhcpv6_relay_header *hdr = (struct dhcpv6_relay_header*)data;
if (iov[0].iov_base == NULL) {
uint8_t *odata;
dhcpv6_for_each_option(hdr->options, data + len, otype, olen, odata) {
if (otype == DHCPV6_OPT_RELAY_MSG) {
- iov[7].iov_base = odata + olen;
- iov[7].iov_len = (((uint8_t*)iov[0].iov_base) + iov[0].iov_len)
+ iov[8].iov_base = odata + olen;
+ iov[8].iov_len = (((uint8_t*)iov[0].iov_base) + iov[0].iov_len)
- (odata + olen);
handle_nested_message(odata, olen, opts, end, iov);
return;
uint16_t duid_type;
uint16_t hardware_type;
uint8_t mac[6];
+ uint16_t solmaxrt_type;
+ uint16_t solmaxrt_length;
+ uint32_t solmaxrt_value;
uint16_t clientid_type;
uint16_t clientid_length;
uint8_t clientid_buf[130];
.serverid_length = htons(10),
.duid_type = htons(3),
.hardware_type = htons(1),
+ .solmaxrt_type = htons(DHCPV6_OPT_SOL_MAX_RT),
+ .solmaxrt_length = htons(4),
+ .solmaxrt_value = htonl(60),
.clientid_type = htons(DHCPV6_OPT_CLIENTID),
.clientid_buf = {0}
};
} search = {htons(DHCPV6_OPT_DNS_DOMAIN), htons(search_len)};
+ struct dhcpv6_cer_id cerid = {
+#ifdef EXT_CER_ID
+ .type = htons(EXT_CER_ID),
+#endif
+ .len = htons(36),
+ .addr = iface->dhcpv6_pd_cer,
+ };
+
uint8_t pdbuf[512];
struct iovec iov[] = {{NULL, 0},
{&search, (search_len) ? sizeof(search) : 0},
{search_domain, search_len},
{pdbuf, 0},
+ {&cerid, 0},
{NULL, 0}};
uint8_t *opts = (uint8_t*)&hdr[1], *opts_end = (uint8_t*)data + len;
if (olen != ntohs(dest.serverid_length) ||
memcmp(odata, &dest.duid_type, olen))
return; // Not for us
+ } else if (otype == DHCPV6_OPT_USER_CLASS) {
+ uint8_t *c = odata, *cend = &odata[olen];
+ for (; &c[2] <= cend && &c[2 + (c[0] << 8) + c[1]] <= cend; c = &c[2 + (c[0] << 8) + c[1]]) {
+ size_t elen = strlen(excluded_class);
+ if (((((size_t)c[0]) << 8) | c[1]) == elen && !memcmp(&c[2], excluded_class, elen))
+ return; // Ignore from homenet
+ }
+ } else if (otype == DHCPV6_OPT_IA_PD) {
+#ifdef EXT_CER_ID
+ iov[7].iov_len = sizeof(cerid);
+
+ if (IN6_IS_ADDR_UNSPECIFIED(&cerid.addr)) {
+ struct odhcpd_ipaddr addrs[32];
+ ssize_t len = odhcpd_get_interface_addresses(0, addrs,
+ sizeof(addrs) / sizeof(*addrs));
+
+ for (ssize_t i = 0; i < len; ++i)
+ if (IN6_IS_ADDR_UNSPECIFIED(&cerid.addr)
+ || memcmp(&addrs[i].addr, &cerid.addr, sizeof(cerid.addr)) < 0)
+ cerid.addr = addrs[i].addr;
+ }
+#endif
}
}
if (opts[-4] != DHCPV6_MSG_INFORMATION_REQUEST) {
- iov[6].iov_len = dhcpv6_handle_ia(pdbuf, sizeof(pdbuf), iface, addr, &opts[-4], opts_end);
- if (iov[6].iov_len == 0 && opts[-4] == DHCPV6_MSG_REBIND)
+ ssize_t ialen = dhcpv6_handle_ia(pdbuf, sizeof(pdbuf), iface, addr, &opts[-4], opts_end);
+ iov[6].iov_len = ialen;
+ if (ialen < 0 || (ialen == 0 && opts[-4] == DHCPV6_MSG_REBIND))
return;
}
if (iov[0].iov_len > 0) // Update length
update_nested_message(data, len, iov[1].iov_len + iov[2].iov_len +
iov[3].iov_len + iov[4].iov_len + iov[5].iov_len +
- iov[6].iov_len - (4 + opts_end - opts));
+ iov[6].iov_len + iov[7].iov_len - (4 + opts_end - opts));
odhcpd_send(iface->dhcpv6_event.uloop.fd, addr, iov, ARRAY_SIZE(iov), iface);
}