void mld_router::shutdown() {
const mrd::interface_list &intflist = g_mrd->intflist();
for (mrd::interface_list::const_iterator i = intflist.begin();
i != intflist.end(); ++i) {
mld_interface *mldintf =
(mld_interface *)i->second->node_owned_by(this);
if (mldintf) {
mldintf->shutdown();
delete mldintf;
}
}
g_mrd->icmp().register_handler(MLD_LISTENER_REPORT, 0);
g_mrd->icmp().register_handler(MLD_LISTENER_REDUCTION, 0);
g_mrd->icmp().register_handler(MLD_LISTENER_QUERY, 0);
g_mrd->icmp().register_handler(MLDv2_LISTENER_REPORT, 0);
g_mrd->icmp().register_handler(MLDv2_LISTENER_REPORT_OLD, 0);
in6_addr all_routers;
in6_addr mld_all_routers;
all_routers = inet6_addr("ff02::2").address();
mld_all_routers = inet6_addr("ff02::16").address();
g_mrd->icmp().require_mgroup(all_routers, false);
g_mrd->icmp().require_mgroup(mld_all_routers, false);
router::shutdown();
}
bool mld_router::check_startup() {
if (!m_stats.setup("MLD Statistics"))
return false;
m_stats.disable_counter(ReportCount, TX);
m_stats.disable_counter(ReductionCount, TX);
m_stats.disable_counter(ReportV2Count, TX);
if (!router::check_startup())
return false;
import_methods(mld_router_methods);
g_mrd->icmp().register_handler(MLD_LISTENER_REPORT, this);
g_mrd->icmp().register_handler(MLD_LISTENER_REDUCTION, this);
g_mrd->icmp().register_handler(MLD_LISTENER_QUERY, this);
g_mrd->icmp().register_handler(MLDv2_LISTENER_REPORT, this);
g_mrd->icmp().register_handler(MLDv2_LISTENER_REPORT_OLD, this);
in6_addr all_routers;
in6_addr mld_all_routers;
all_routers = inet6_addr("ff02::2").address();
mld_all_routers = inet6_addr("ff02::16").address();
g_mrd->icmp().require_mgroup(all_routers, true);
g_mrd->icmp().require_mgroup(mld_all_routers, true);
return true;
}
/* inet_pton substitute implementation
* Uses inet_addr to convert an IP address in dotted decimal notation into
* unsigned long and copies the result to dst.
* Only supports AF_INET. Follows standard error return conventions of
* inet_pton.
*/
int
inet_pton (int af, const char *src, void *dst)
{
u_long result;
if (af == AF_INET) {
result = inet_addr(src);
if (result == -1)
return 0;
else {
memcpy (dst, &result, 4);
return 1;
}
}
#ifdef NT
#ifdef HAVE_IPV6
else if (af == AF_INET6) {
struct in6_addr Address;
return (inet6_addr(src, &Address));
}
#endif /* HAVE_IPV6 */
#endif /* NT */
#ifndef NT
else {
errno = EAFNOSUPPORT;
return -1;
}
#endif /* NT */
}
bool pim_groupconf_node::fill_defaults() {
instantiate_property_a("rp", inet6_addr::any());
instantiate_property_a("accept_rp", inet6_addr(in6addr_any, 0));
instantiate_property_b("rp_adv", false);
instantiate_property("rp-rejected-source-policy", new propval_enum(rp_rej_entries));
instantiate_property_b("rp-embedded-auto-source-acl", false);
#if 0
m_properties["use_spt"] = always_use;
m_properties["rp_acl"] = rpa_any;
m_properties["rp_acls"] = std::vector<inet6_addr>();
std::vector<std::string> rp_pref;
rp_pref.push_back("embedded");
rp_pref.push_back("rp_set");
rp_pref.push_back("static");
m_properties["rp_pref"] = rp_pref;
#endif
return m_properties.size() == 4;
}
void pim_interface::elect_subnet_dr() {
bool mayuseprio = true;
for (neighbours_def::const_iterator i = neighbours.begin(); mayuseprio && i != neighbours.end(); ++i)
mayuseprio = (*i)->has_dr_priority();
pim_neighbour *bestneigh = 0;
// elect DR between known neighbours
if (!neighbours.empty()) {
bestneigh = *neighbours.begin();
neighbours_def::const_iterator i = neighbours.begin();
i++;
for (; i != neighbours.end(); i++) {
if (!mayuseprio || (bestneigh->dr_priority() == (*i)->dr_priority())) {
if (bestneigh->localaddr() < (*i)->localaddr()) {
bestneigh = *i;
}
} else if (bestneigh->dr_priority() < (*i)->dr_priority()) {
bestneigh = *i;
}
}
}
// match the elected neighbour against us
if (bestneigh) {
uint32_t my_dr_prio = conf()->dr_priority();
if (!mayuseprio || (my_dr_prio == bestneigh->dr_priority())) {
if (bestneigh->localaddr() < inet6_addr(*owner()->linklocal()))
bestneigh = 0;
} else {
if (my_dr_prio > bestneigh->dr_priority())
bestneigh = 0;
}
}
/* We must set elected_dr before calling dr_changed */
pim_neighbour *old = elected_dr;
elected_dr = bestneigh;
if (old != bestneigh) {
if (bestneigh && !old) {
if (should_log(NORMAL))
log().xprintf("No longer the DR, new DR is %{Addr}\n", bestneigh->localaddr());
pim->dr_changed(this, false);
} else if (old && !bestneigh) {
if (should_log(NORMAL))
log().writeline("Im now the DR");
pim->dr_changed(this, true);
} else if (bestneigh) {
if (should_log(NORMAL))
log().xprintf("New DR is %{Addr}\n", bestneigh->localaddr());
}
}
}
ripng_router::ripng_router()
: router("ripng"),
m_sock("ripng sock", this, std::mem_fun(&ripng_router::data_available)),
m_garbcol_timer("ripng garbage collector", this,
std::mem_fun(&ripng_router::garbage_collect), 30000, true) {
m_ripnggrp = inet6_addr("ff02::9").as_sockaddr();
m_ripnggrp.sin6_port = htons(522);
}
void mld_interface::handle_other_querier_present_timeout() {
change_is_querier(conf()->querier());
if (!mif_isquerier)
mif_querier_addr = inet6_addr();
if (should_log(NORMAL)) {
base_stream &os = log().write("The other querier timed out");
if (mif_isquerier)
os.write(", switching to Querier mode.");
os.newl();
}
}
pim_router::pim_router()
: router("pim"), pim_sock("pim", this,
std::mem_fun(&pim_router::data_available)),
m_gc("pim garbage collector", this,
std::mem_fun(&pim_router::handle_garbage_collector), 5000, true)
#ifndef PIM_NO_BSR
, m_bsr(this)
#endif
{
pim_all_routers = inet6_addr("ff02::d").address();
memset(&pim_all_routers_addr, 0, sizeof(pim_all_routers_addr));
pim_all_routers_addr.sin6_family = AF_INET6;
pim_all_routers_addr.sin6_addr = pim_all_routers;
}
void linux_unicast_router::parse_prefix_rec(rtattr *tb[], int plen, int protocol,
lookup_result &reply) const {
reply.dst = inet6_addr(in6addr_any, plen);
reply.dev = -1;
reply.protocol = protocol;
reply.metric = 0xffffffff;
reply.nexthop = in6addr_any;
reply.source = in6addr_any;
if (tb[RTA_DST])
reply.dst.addr = *(in6_addr *)RTA_DATA(tb[RTA_DST]);
if (tb[RTA_OIF])
reply.dev = *(int *)RTA_DATA(tb[RTA_OIF]);
if (tb[RTA_GATEWAY])
memcpy(&reply.nexthop, RTA_DATA(tb[RTA_GATEWAY]), sizeof(in6_addr));
if (tb[RTA_PREFSRC])
memcpy(&reply.source, RTA_DATA(tb[RTA_PREFSRC]), sizeof(in6_addr));
if (tb[RTA_PRIORITY])
reply.metric = *(uint32_t *)RTA_DATA(tb[RTA_PRIORITY]);
}
bool console_module::deny_addr(const std::vector<std::string> &args) {
if (args.empty())
return false;
std::string username = args[0];
inet6_addr mask = inet6_addr(in6addr_any, 0);
if (args.size() > 1) {
if (!mask.set(args[1])) {
return false;
}
}
console_module::allow_local_def::iterator i = acl.begin();
while (i != acl.end()) {
allow_local_def::iterator m = i;
++i;
if (mask.matches(m->first)) {
std::list<auth_desc>::iterator j = m->second.begin();
while (j != m->second.end()) {
std::list<auth_desc>::iterator k = j;
++j;
if (username.empty() || username == "*"
|| username == j->username) {
m->second.erase(k);
}
}
if (m->second.empty()) {
acl.erase(m);
}
}
}
return true;
}
bool console_module::allow_addr(const std::vector<std::string> &args) {
inet6_addr mask = inet6_addr(in6addr_any, 0);
auth_desc desc;
if (!args.empty()) {
desc.username = args[0];
if (args.size() > 1) {
desc.password = args[1];
if (args.size() > 2) {
if (!mask.set(args[2]))
return false;
}
}
} else {
return false;
}
acl[mask].push_back(desc);
return true;
}
void mld_group_interface::update_sources_timer(const address_set &sources,
uint32_t interval) {
if (interval == 0)
interval = mali();
for (address_set::const_iterator i = sources.begin(); i != sources.end(); ++i) {
std::vector<source_timer>::iterator k = g_sources_timers.begin();
for (; k != g_sources_timers.end() && !(k->argument() == *i); ++k);
if (k == g_sources_timers.end()) {
std::string tmp;
tmp = "mld source timer (";
tmp += inet6_addr(*i).as_string();
tmp += ")";
k = g_sources_timers.insert(g_sources_timers.end(),
source_timer(tmp, this,
std::mem_fun(&mld_group_interface::handle_source_timeout), *i));
}
k->start_or_update(interval, false);
}
}
bool do_opt(char *opt, char *arg, sendip_data *pack) {
ripng_header *rippack = (ripng_header *)pack->data;
ripng_entry *ripopt;
char *p, *q;
switch(opt[1]) {
case 'v': /* version */
rippack->version = (u_int8_t)strtoul(arg, (char **)0, 0);
pack->modified |= RIPNG_MOD_VERSION;
break;
case 'c': /* command */
rippack->command = (u_int8_t)strtoul(arg, (char **)0, 0);
pack->modified |= RIPNG_MOD_COMMAND;
break;
case 'r': /* reserved */
rippack->res = htons((u_int16_t)strtoul(arg, (char **)0, 0));
pack->modified |= RIPNG_MOD_RESERVED;
break;
/*
case 'a': / * authenticate * /
if(RIPNG_NUM_ENTRIES(pack) != 0) {
usage_error("Warning: a real RIP-2 packet only has authentication on the first entry.\n");
}
pack->modified |= RIP_IS_AUTH;
pack->data = realloc(pack->data,pack->alloc_len+strlen(arg));
strcpy(pack->data+pack->alloc_len,arg);
pack->alloc_len += strlen(arg);
break;
*/
case 'e': /* rip entry */
RIPNG_ADD_ENTRY(pack);
ripopt = RIPNG_ENTRY(pack);
p=q=arg;
/* TODO: if arg is malformed, this could segfault */
while(*(q++)!='/') /* do nothing */; *(--q)='\0';
ripopt->prefix = (p==q)?in6addr_any:inet6_addr(p);
p=++q; while(*(q++)!='/') /* do nothing */; *(--q)='\0';
ripopt->tag=htons( (p==q)?0:(u_int16_t)strtoul(p, (char **)0,0));
p=++q; while(*(q++)!='/') /* do nothing */; *(--q)='\0';
ripopt->len=(p==q)?(u_int8_t)128:(u_int8_t)strtoul(p, (char **)0,0);
p=++q; while(*(q++)!='\0') /* do nothing */; *(--q)='\0';
ripopt->metric=(p==q)?(u_int8_t)16:(u_int8_t)strtoul(p,(char **)0, 0);
break;
case 'd': /* default request */
if(RIPNG_NUM_ENTRIES(pack) != 0) {
usage_error("Warning: a real RIPng packet does not have any other entries in a default request.\n");
}
rippack->command = (u_int8_t)1;
rippack->version = (u_int8_t)1;
rippack->res = (u_int16_t)0;
pack->modified|=RIPNG_MOD_COMMAND|RIPNG_MOD_VERSION|RIPNG_MOD_RESERVED;
RIPNG_ADD_ENTRY(pack);
ripopt=RIPNG_ENTRY(pack);
ripopt->prefix=in6addr_any;
ripopt->tag=(u_int16_t)0;
ripopt->len=(u_int8_t)0;
ripopt->metric=htons((u_int16_t)16);
break;
}
return TRUE;
}
/* ascii2prefix
*/
prefix_t *
ascii2prefix (int family, char *string)
{
u_long bitlen, maxbitlen = 0;
char *cp;
struct in_addr sin;
#ifdef HAVE_IPV6
struct in6_addr sin6;
#endif /* HAVE_IPV6 */
int result;
char save[MAXLINE];
if (string == NULL)
return (NULL);
/* easy way to handle both families */
if (family == 0) {
family = AF_INET;
#ifdef HAVE_IPV6
if (strchr (string, ':')) family = AF_INET6;
#endif /* HAVE_IPV6 */
}
if (family == AF_INET) {
maxbitlen = 32;
}
#ifdef HAVE_IPV6
else if (family == AF_INET6) {
maxbitlen = 128;
}
#endif /* HAVE_IPV6 */
if ((cp = strchr (string, '/')) != NULL) {
bitlen = atol (cp + 1);
/* *cp = '\0'; */
/* copy the string to save. Avoid destroying the string */
assert (cp - string < MAXLINE);
memcpy (save, string, cp - string);
save[cp - string] = '\0';
string = save;
if (bitlen < 0 || bitlen > maxbitlen)
bitlen = maxbitlen;
}
else {
bitlen = maxbitlen;
}
if (family == AF_INET) {
if ((result = my_inet_pton (AF_INET, string, &sin)) <= 0)
return (NULL);
return (New_Prefix (AF_INET, &sin, bitlen));
}
#ifdef HAVE_IPV6
else if (family == AF_INET6) {
// Get rid of this with next IPv6 upgrade
#if defined(NT) && !defined(HAVE_INET_NTOP)
inet6_addr(string, &sin6);
return (New_Prefix (AF_INET6, &sin6, bitlen));
#else
if ((result = inet_pton (AF_INET6, string, &sin6)) <= 0)
return (NULL);
#endif /* NT */
return (New_Prefix (AF_INET6, &sin6, bitlen));
}
#endif /* HAVE_IPV6 */
else
return (NULL);
}
mld_router::mld_router()
: router("mld"),
m_stats(this, MessageCount, stats_descriptions) {
in6addr_linkscope_allnodes = inet6_addr("ff02::1").address();
}
propval_address(const inet6_addr *a)
: value(a ? *a : inet6_addr()) {}