/**
- * Copyright (C) 2012 Steven Barth <steven@midlink.org>
+ * Copyright (C) 2012-2013 Steven Barth <steven@midlink.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License v2 as published by
#include <stdlib.h>
#include <string.h>
#include <syslog.h>
+#include <signal.h>
#include <unistd.h>
#include <arpa/inet.h>
#include <netinet/in.h>
static char *argv[4] = {NULL, NULL, NULL, NULL};
+static volatile char *delayed_call = NULL;
int script_init(const char *path, const char *ifname)
}
}
+enum entry_type {
+ ENTRY_ADDRESS,
+ ENTRY_HOST,
+ ENTRY_ROUTE,
+ ENTRY_PREFIX
+};
-static void entry_to_env(const char *name, const void *data, size_t len, bool host, bool route)
+static void entry_to_env(const char *name, const void *data, size_t len, enum entry_type type)
{
size_t buf_len = strlen(name);
const struct odhcp6c_entry *e = data;
for (size_t i = 0; i < len / sizeof(*e); ++i) {
inet_ntop(AF_INET6, &e[i].target, &buf[buf_len], INET6_ADDRSTRLEN);
buf_len += strlen(&buf[buf_len]);
- if (!host) {
+ if (type != ENTRY_HOST) {
buf_len += snprintf(&buf[buf_len], 6, "/%hhu", e[i].length);
- if (route) {
+ if (type == ENTRY_ROUTE) {
buf[buf_len++] = ',';
if (!IN6_IS_ADDR_UNSPECIFIED(&e[i].router)) {
inet_ntop(AF_INET6, &e[i].router, &buf[buf_len], INET6_ADDRSTRLEN);
buf_len += strlen(&buf[buf_len]);
}
buf_len += snprintf(&buf[buf_len], 24, ",%u", e[i].valid);
+ buf_len += snprintf(&buf[buf_len], 12, ",%u", e[i].priority);
} else {
buf_len += snprintf(&buf[buf_len], 24, ",%u,%u", e[i].preferred, e[i].valid);
}
- if (e[i].priority)
- buf_len += snprintf(&buf[buf_len], 12, ",%u", e[i].priority);
+
+ if (type == ENTRY_PREFIX && e[i].priority) {
+ // priority and router are abused for prefix exclusion
+ buf_len += snprintf(&buf[buf_len], 12, ",excluded=");
+ inet_ntop(AF_INET6, &e[i].router, &buf[buf_len], INET6_ADDRSTRLEN);
+ buf_len += strlen(&buf[buf_len]);
+ buf_len += snprintf(&buf[buf_len], 24, "/%u", e[i].priority);
+ }
}
buf[buf_len++] = ' ';
}
}
+static void script_call_delayed(int signal __attribute__((unused)))
+{
+ if (delayed_call)
+ script_call((char*)delayed_call);
+}
+
+
+void script_delay_call(const char *status, int timeout)
+{
+ if (!delayed_call) {
+ delayed_call = strdup(status);
+ signal(SIGALRM, script_call_delayed);
+ alarm(timeout);
+ }
+}
+
+
void script_call(const char *status)
{
- syslog(LOG_WARNING, "State for %s changed to %s", argv[1], status);
size_t dns_len, search_len, custom_len, sntp_ip_len, sntp_dns_len;
- size_t sip_ip_len, sip_fqdn_len;
+ size_t sip_ip_len, sip_fqdn_len, aftr_name_len;
+
+ odhcp6c_expire();
+ if (delayed_call)
+ alarm(0);
struct in6_addr *dns = odhcp6c_get_state(STATE_DNS, &dns_len);
uint8_t *search = odhcp6c_get_state(STATE_SEARCH, &search_len);
uint8_t *sntp_dns = odhcp6c_get_state(STATE_SNTP_FQDN, &sntp_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);
size_t prefix_len, address_len, ra_pref_len, ra_route_len, ra_dns_len;
uint8_t *prefix = odhcp6c_get_state(STATE_IA_PD, &prefix_len);
fqdn_to_env("DOMAINS", search, search_len);
fqdn_to_env("SNTP_FQDN", sntp_dns, sntp_dns_len);
fqdn_to_env("SIP_DOMAIN", sip_fqdn, sip_fqdn_len);
+ fqdn_to_env("AFTR", aftr_name, aftr_name_len);
bin_to_env(custom, custom_len);
- entry_to_env("PREFIXES", prefix, prefix_len, false, false);
- entry_to_env("ADDRESSES", address, address_len, false, false);
- entry_to_env("RA_ADDRESSES", ra_pref, ra_pref_len, false, false);
- entry_to_env("RA_ROUTES", ra_route, ra_route_len, false, true);
- entry_to_env("RA_DNS", ra_dns, ra_dns_len, true, false);
+ entry_to_env("PREFIXES", prefix, prefix_len, ENTRY_PREFIX);
+ entry_to_env("ADDRESSES", address, address_len, ENTRY_ADDRESS);
+ entry_to_env("RA_ADDRESSES", ra_pref, ra_pref_len, ENTRY_ADDRESS);
+ entry_to_env("RA_ROUTES", ra_route, ra_route_len, ENTRY_ROUTE);
+ entry_to_env("RA_DNS", ra_dns, ra_dns_len, ENTRY_HOST);
argv[2] = (char*)status;
execv(argv[0], argv);