htons(DHCPV6_OPT_SIP_SERVER_A),
htons(DHCPV6_OPT_AFTR_NAME),
htons(DHCPV6_OPT_PD_EXCLUDE),
+#ifdef EXT_PREFIX_CLASS
htons(DHCPV6_OPT_PREFIX_CLASS),
+#endif
};
odhcp6c_add_state(STATE_ORO, oro, sizeof(oro));
{
int random;
odhcp6c_random(&random, sizeof(random));
- return (time * (random % 1000)) / 10000;
+ return (time * ((int64_t)random % 1000LL)) / 10000LL;
}
int dhcpv6_request(enum dhcpv6_msg type)
{
uint8_t buf[1536];
- uint32_t timeout = UINT32_MAX;
+ uint64_t timeout = UINT32_MAX;
struct dhcpv6_retx *retx = &dhcpv6_retx[type];
if (retx->delay) {
if (timeout == 0)
return -1;
- syslog(LOG_NOTICE, "Sending %s (timeout %us)", retx->name, timeout);
+ syslog(LOG_NOTICE, "Sending %s (timeout %us)", retx->name, (unsigned)timeout);
uint64_t start = odhcp6c_get_milli_time(), round_start = start, elapsed;
// Collect all advertised servers
-static int dhcpv6_handle_advert(_unused enum dhcpv6_msg orig,
+static int dhcpv6_handle_advert(enum dhcpv6_msg orig,
const void *opt, const void *end)
{
uint16_t olen, otype;
uint8_t *odata;
- struct dhcpv6_server_cand cand = {false, false, 0, 0, {0}};
+ struct dhcpv6_server_cand cand = {false, false, 0, 0, {0}, NULL, NULL, 0, 0};
dhcpv6_for_each_option(opt, end, otype, olen, odata) {
+ if (orig == DHCPV6_MSG_SOLICIT &&
+ (otype == DHCPV6_OPT_IA_PD || otype == DHCPV6_OPT_IA_NA) &&
+ olen > sizeof(struct dhcpv6_ia_hdr)) {
+ struct dhcpv6_ia_hdr *ia_hdr = (void*)(&odata[-4]);
+ dhcpv6_parse_ia(&ia_hdr[1], odata + olen);
+ }
+
if (otype == DHCPV6_OPT_SERVERID && olen <= 130) {
memcpy(cand.duid, odata, olen);
cand.duid_len = olen;
}
}
- if (cand.duid_len > 0)
+ if (cand.duid_len > 0) {
+ cand.ia_na = odhcp6c_move_state(STATE_IA_NA, &cand.ia_na_len);
+ cand.ia_pd = odhcp6c_move_state(STATE_IA_PD, &cand.ia_pd_len);
odhcp6c_add_state(STATE_SERVER_CAND, &cand, sizeof(cand));
+ }
+
+ if (orig == DHCPV6_MSG_SOLICIT) {
+ odhcp6c_clear_state(STATE_IA_NA);
+ odhcp6c_clear_state(STATE_IA_PD);
+ }
return -1;
}
odhcp6c_add_state(STATE_SERVER_ID, hdr, sizeof(hdr));
odhcp6c_add_state(STATE_SERVER_ID, c->duid, c->duid_len);
accept_reconfig = c->wants_reconfigure;
+ odhcp6c_add_state(STATE_IA_NA, c->ia_na, c->ia_na_len);
+ odhcp6c_add_state(STATE_IA_PD, c->ia_pd, c->ia_pd_len);
}
+ for (size_t i = 0; i < cand_len / sizeof(*c); ++i) {
+ free(cand[i].ia_na);
+ free(cand[i].ia_pd);
+ }
odhcp6c_clear_state(STATE_SERVER_CAND);
if (!c)
t1 = t2 = t3 = UINT32_MAX;
}
+ if (orig == DHCPV6_MSG_REQUEST) {
+ // Delete NA and PD we have in the state from the Advert
+ odhcp6c_clear_state(STATE_IA_NA);
+ odhcp6c_clear_state(STATE_IA_PD);
+ }
+
if (opt) {
odhcp6c_clear_state(STATE_DNS);
odhcp6c_clear_state(STATE_SEARCH);
}
}
+ if (t1 == UINT32_MAX)
+ t1 = 300;
+
+ if (t2 == UINT32_MAX)
+ t2 = 600;
+
+ if (t3 == UINT32_MAX)
+ t3 = 3600;
+
return true;
}
// Update address IA
dhcpv6_for_each_option(opt, end, otype, olen, odata) {
- struct odhcp6c_entry entry = {IN6ADDR_ANY_INIT,
- 0, 0, IN6ADDR_ANY_INIT, 0, 0, 0};
+ struct odhcp6c_entry entry = {IN6ADDR_ANY_INIT, 0, 0,
+ IN6ADDR_ANY_INIT, 0, 0, 0};
if (otype == DHCPV6_OPT_IA_PREFIX) {
struct dhcpv6_ia_prefix *prefix = (void*)&odata[-4];
uint16_t stype, slen;
uint8_t *sdata;
+#ifdef EXT_PREFIX_CLASS
// Find prefix class, if any
dhcpv6_for_each_option(&prefix[1], odata + olen,
- stype, slen, sdata)
- if (stype == DHCPV6_OPT_PREFIX_CLASS && slen == 2)
- entry.prefix_class = ntohs(*((uint16_t*)sdata));
+ stype, slen, sdata)
+ if (stype == DHCPV6_OPT_PREFIX_CLASS && slen == 2)
+ entry.class = sdata[0] << 8 | sdata[1];
+#endif
// Parse PD-exclude
bool ok = true;
entry.length = 128;
entry.target = addr->addr;
+#ifdef EXT_PREFIX_CLASS
+ uint16_t stype, slen;
+ uint8_t *sdata;
+ // Find prefix class, if any
+ dhcpv6_for_each_option(&addr[1], odata + olen,
+ stype, slen, sdata)
+ if (stype == DHCPV6_OPT_PREFIX_CLASS && slen == 2)
+ entry.class = sdata[0] << 8 | sdata[1];
+#endif
+
odhcp6c_update_entry(STATE_IA_NA, &entry);
}
-
if (entry.valid > 0 && timeout > entry.valid)
timeout = entry.valid;
}