+ size_t len = 13 + strlen(name);
+ char *buf = realloc(NULL, len);
+ snprintf(buf, len, "%s=%d", name, value);
+ putenv(buf);
+}
+
+
+static void s46_to_env_portparams(const uint8_t *data, size_t len, FILE *fp)
+{
+ uint8_t *odata;
+ uint16_t otype, olen;
+ dhcpv6_for_each_option(data, &data[len], otype, olen, odata) {
+ if (otype == DHCPV6_OPT_S46_PORTPARAMS &&
+ olen == sizeof(struct dhcpv6_s46_portparams)) {
+ struct dhcpv6_s46_portparams *params = (void*)odata;
+ fprintf(fp, "offset=%d,psidlen=%d,psid=%d,",
+ params->offset, params->psid_len, ntohs(params->psid));
+ }
+ }
+}
+
+
+static void s46_to_env(enum odhcp6c_state state, const uint8_t *data, size_t len)
+{
+ const char *name = (state == STATE_S46_MAPE) ? "MAPE" :
+ (state == STATE_S46_MAPT) ? "MAPT" : "LW4O6";
+
+ if (len == 0)
+ return;
+
+ char *str;
+ size_t strsize;
+
+ FILE *fp = open_memstream(&str, &strsize);
+ fputs(name, fp);
+ fputc('=', fp);
+
+ const char *type = (state == STATE_S46_MAPE) ? "map-e" :
+ (state == STATE_S46_MAPT) ? "map-t" : "lw4o6";
+
+ uint8_t *odata;
+ uint16_t otype, olen;
+ dhcpv6_for_each_option(data, &data[len], otype, olen, odata) {
+ struct dhcpv6_s46_rule *rule = (struct dhcpv6_s46_rule*)odata;
+ struct dhcpv6_s46_v4v6bind *bind = (struct dhcpv6_s46_v4v6bind*)odata;
+
+ if (state != STATE_S46_LW && otype == DHCPV6_OPT_S46_RULE &&
+ olen >= sizeof(struct dhcpv6_s46_rule)) {
+ char buf4[INET_ADDRSTRLEN];
+ char buf6[INET6_ADDRSTRLEN];
+ struct in6_addr in6 = IN6ADDR_ANY_INIT;
+
+ size_t prefix6len = rule->prefix6_len;
+ prefix6len = (prefix6len % 8 == 0) ? prefix6len / 8 : prefix6len / 8 + 1;
+
+ if (olen < sizeof(struct dhcpv6_s46_rule) + prefix6len)
+ continue;
+
+ memcpy(&in6, rule->ipv6_prefix, prefix6len);
+
+ inet_ntop(AF_INET, &rule->ipv4_prefix, buf4, sizeof(buf4));
+ inet_ntop(AF_INET6, &in6, buf6, sizeof(buf6));
+
+ if (rule->flags & 1)
+ fputs("fmr,", fp);
+
+ fprintf(fp, "type=%s,ealen=%d,prefix4len=%d,prefix6len=%d,ipv4prefix=%s,ipv6prefix=%s,",
+ type, rule->ea_len, rule->prefix4_len, rule->prefix6_len, buf4, buf6);
+
+ s46_to_env_portparams(&rule->ipv6_prefix[prefix6len],
+ olen - sizeof(*rule) - prefix6len, fp);
+
+ dhcpv6_for_each_option(data, &data[len], otype, olen, odata) {
+ if (state != STATE_S46_MAPT && otype == DHCPV6_OPT_S46_BR &&
+ olen == sizeof(struct in6_addr)) {
+ inet_ntop(AF_INET6, odata, buf6, sizeof(buf6));
+ fprintf(fp, "br=%s,", buf6);
+ } else if (state == STATE_S46_MAPT && otype == DHCPV6_OPT_S46_DMR &&
+ olen >= sizeof(struct dhcpv6_s46_dmr)) {
+ struct dhcpv6_s46_dmr *dmr = (struct dhcpv6_s46_dmr*)odata;
+ memset(&in6, 0, sizeof(in6));
+ size_t prefix6len = dmr->dmr_prefix6_len;
+ prefix6len = (prefix6len % 8 == 0) ? prefix6len / 8 : prefix6len / 8 + 1;
+
+ if (olen < sizeof(struct dhcpv6_s46_dmr) + prefix6len)
+ continue;
+
+ memcpy(&in6, dmr->dmr_ipv6_prefix, prefix6len);
+ inet_ntop(AF_INET6, &in6, buf6, sizeof(buf6));
+ fprintf(fp, "dmr=%s/%d,", buf6, dmr->dmr_prefix6_len);
+ }
+ }
+
+ fputc(' ', fp);
+ } else if (state == STATE_S46_LW && otype == DHCPV6_OPT_S46_V4V6BIND &&
+ olen >= sizeof(struct dhcpv6_s46_v4v6bind)) {
+ char buf4[INET_ADDRSTRLEN];
+ char buf6[INET6_ADDRSTRLEN];
+ struct in6_addr in6 = IN6ADDR_ANY_INIT;
+
+ size_t prefix6len = bind->bindprefix6_len;
+ prefix6len = (prefix6len % 8 == 0) ? prefix6len / 8 : prefix6len / 8 + 1;
+
+ if (olen < sizeof(struct dhcpv6_s46_v4v6bind) + prefix6len)
+ continue;
+
+ memcpy(&in6, bind->bind_ipv6_prefix, prefix6len);
+
+ inet_ntop(AF_INET, &bind->ipv4_address, buf4, sizeof(buf4));
+ inet_ntop(AF_INET6, &in6, buf6, sizeof(buf6));
+
+ fprintf(fp, "type=%s,prefix4len=32,prefix6len=%d,ipv4prefix=%s,ipv6prefix=%s,",
+ type, bind->bindprefix6_len, buf4, buf6);
+
+ s46_to_env_portparams(&bind->bind_ipv6_prefix[prefix6len],
+ olen - sizeof(*bind) - prefix6len, fp);
+
+ dhcpv6_for_each_option(data, &data[len], otype, olen, odata) {
+ if (otype == DHCPV6_OPT_S46_BR && olen == sizeof(struct in6_addr)) {
+ inet_ntop(AF_INET6, odata, buf6, sizeof(buf6));
+ fprintf(fp, "br=%s,", buf6);
+ }
+ }
+
+ fputc(' ', fp);
+ }
+ }
+
+ fclose(fp);
+ putenv(str);
+}
+
+
+void script_call(const char *status, int delay, bool resume)
+{
+ time_t now = odhcp6c_get_milli_time() / 1000;
+ bool running_script = false;
+
+ if (running) {
+ kill(running, SIGTERM);
+ delay -= now - started;
+ running_script = true;
+ }
+
+ if (resume || !running_script || !action[0])
+ strncpy(action, status, sizeof(action) - 1);
+
+ pid_t pid = fork();
+ if (pid > 0) {
+ running = pid;
+ started = now;
+
+ if (!resume)
+ action[0] = 0;
+ } else if (pid == 0) {
+ size_t dns_len, search_len, custom_len, sntp_ip_len, ntp_ip_len, ntp_dns_len;
+ size_t sip_ip_len, sip_fqdn_len, aftr_name_len, cer_len, addr_len;
+ size_t s46_mapt_len, s46_mape_len, s46_lw_len, passthru_len;
+
+ signal(SIGTERM, SIG_DFL);
+ if (delay > 0) {
+ sleep(delay);
+ odhcp6c_expire();
+ }
+
+ struct in6_addr *addr = odhcp6c_get_state(STATE_SERVER_ADDR, &addr_len);
+ struct in6_addr *dns = odhcp6c_get_state(STATE_DNS, &dns_len);
+ uint8_t *search = odhcp6c_get_state(STATE_SEARCH, &search_len);
+ uint8_t *custom = odhcp6c_get_state(STATE_CUSTOM_OPTS, &custom_len);
+ struct in6_addr *sntp = odhcp6c_get_state(STATE_SNTP_IP, &sntp_ip_len);
+ struct in6_addr *ntp = odhcp6c_get_state(STATE_NTP_IP, &ntp_ip_len);
+ uint8_t *ntp_dns = odhcp6c_get_state(STATE_NTP_FQDN, &ntp_dns_len);
+ struct in6_addr *sip = odhcp6c_get_state(STATE_SIP_IP, &sip_ip_len);
+ uint8_t *sip_fqdn = odhcp6c_get_state(STATE_SIP_FQDN, &sip_fqdn_len);
+ uint8_t *aftr_name = odhcp6c_get_state(STATE_AFTR_NAME, &aftr_name_len);
+ struct in6_addr *cer = odhcp6c_get_state(STATE_CER, &cer_len);
+ uint8_t *s46_mapt = odhcp6c_get_state(STATE_S46_MAPT, &s46_mapt_len);
+ uint8_t *s46_mape = odhcp6c_get_state(STATE_S46_MAPE, &s46_mape_len);
+ uint8_t *s46_lw = odhcp6c_get_state(STATE_S46_LW, &s46_lw_len);
+ uint8_t *passthru = odhcp6c_get_state(STATE_PASSTHRU, &passthru_len);
+
+ size_t prefix_len, address_len, ra_pref_len,
+ ra_route_len, ra_dns_len, ra_search_len;
+ uint8_t *prefix = odhcp6c_get_state(STATE_IA_PD, &prefix_len);
+ uint8_t *address = odhcp6c_get_state(STATE_IA_NA, &address_len);
+ uint8_t *ra_pref = odhcp6c_get_state(STATE_RA_PREFIX, &ra_pref_len);
+ uint8_t *ra_route = odhcp6c_get_state(STATE_RA_ROUTE, &ra_route_len);
+ uint8_t *ra_dns = odhcp6c_get_state(STATE_RA_DNS, &ra_dns_len);
+ uint8_t *ra_search = odhcp6c_get_state(STATE_RA_SEARCH, &ra_search_len);
+
+ ipv6_to_env("SERVER", addr, addr_len / sizeof(*addr));