/**
* Copyright (C) 2012-2014 Steven Barth <steven@midlink.org>
+ * Copyright (C) 2017 Hans Dedecker <dedeckeh@gmail.com>
*
* 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 "odhcp6c.h"
#include "ra.h"
-
static bool nocarrier = false;
static int sock = -1, rtnl = -1;
.lladdr = {ND_OPT_SOURCE_LINKADDR, 1, {0}},
};
-
static void ra_send_rs(int signal __attribute__((unused)));
int ra_init(const char *ifname, const struct in6_addr *ifid, unsigned int options)
return 0;
}
-
static void ra_send_rs(int signal __attribute__((unused)))
{
const struct sockaddr_in6 dest = {AF_INET6, 0, 0, ALL_IPV6_ROUTERS, if_index};
alarm(4);
}
-
static int16_t pref_to_priority(uint8_t flags)
{
flags = (flags >> 3) & 0x03;
+
return (flags == 0x0) ? 512 : (flags == 0x1) ? 384 :
(flags == 0x3) ? 640 : -1;
}
-
bool ra_link_up(void)
{
static bool firstcall = true;
struct ifinfomsg msg;
uint8_t pad[4000];
} resp;
-
bool ret = false;
ssize_t read;
do {
read = recv(rtnl, &resp, sizeof(resp), MSG_DONTWAIT);
+
if (read < 0 || !NLMSG_OK(&resp.hdr, (size_t)read) ||
resp.hdr.nlmsg_type != RTM_NEWLINK ||
resp.msg.ifi_index != if_index)
int ra_conf_hoplimit(int newvalue)
{
static int value = 0;
+
if (newvalue > 0)
value = newvalue;
+
return value;
}
int ra_conf_mtu(int newvalue)
{
static int value = 0;
+
if (newvalue >= 1280 && newvalue <= 65535)
value = newvalue;
+
return value;
}
int ra_conf_reachable(int newvalue)
{
static int value = 0;
+
if (newvalue > 0 && newvalue <= 3600000)
value = newvalue;
+
return value;
}
int ra_conf_retransmit(int newvalue)
{
static int value = 0;
+
if (newvalue > 0 && newvalue <= 60000)
value = newvalue;
+
return value;
}
entry->priority = pref_to_priority(adv->nd_ra_flags_reserved);
if (entry->priority < 0)
entry->priority = pref_to_priority(0);
+
entry->valid = router_valid;
entry->preferred = entry->valid;
changed |= odhcp6c_update_entry(STATE_RA_ROUTE, entry, 0, true);
if (ra_options & RA_RDNSS_DEFAULT_LIFETIME) {
int states[2] = {STATE_RA_DNS, STATE_RA_SEARCH};
+
for (size_t i = 0; i < 2; ++i) {
size_t ra_dns_len;
uint8_t *start = odhcp6c_get_state(states[i], &ra_dns_len);
+
for (struct odhcp6c_entry *c = (struct odhcp6c_entry*)start;
(uint8_t*)c < &start[ra_dns_len] &&
(uint8_t*)odhcp6c_next_entry(c) <= &start[ra_dns_len];
- c = odhcp6c_next_entry(c))
+ c = odhcp6c_next_entry(c)) {
if (IN6_ARE_ADDR_EQUAL(&c->router, &from.sin6_addr) &&
c->valid > router_valid)
c->valid = router_valid;
+ }
}
}
}