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// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
#include <netdb.h>
#include "include/types.h"
#include "include/random.h"
#include "Messenger.h"
#include "msg/simple/SimpleMessenger.h"
#include "msg/async/AsyncMessenger.h"
#ifdef HAVE_XIO
#include "msg/xio/XioMessenger.h"
#endif
Messenger *Messenger::create_client_messenger(CephContext *cct, string lname)
{
std::string public_msgr_type = cct->_conf->ms_public_type.empty() ? cct->_conf.get_val<std::string>("ms_type") : cct->_conf->ms_public_type;
auto nonce = ceph::util::generate_random_number<uint64_t>();
return Messenger::create(cct, public_msgr_type, entity_name_t::CLIENT(),
std::move(lname), nonce, 0);
}
Messenger *Messenger::create(CephContext *cct, const string &type,
entity_name_t name, string lname,
uint64_t nonce, uint64_t cflags)
{
int r = -1;
if (type == "random") {
r = ceph::util::generate_random_number(0, 1);
}
if (r == 0 || type == "simple")
return new SimpleMessenger(cct, name, std::move(lname), nonce);
else if (r == 1 || type.find("async") != std::string::npos)
return new AsyncMessenger(cct, name, type, std::move(lname), nonce);
#ifdef HAVE_XIO
else if ((type == "xio") &&
cct->check_experimental_feature_enabled("ms-type-xio"))
return new XioMessenger(cct, name, std::move(lname), nonce, cflags);
#endif
lderr(cct) << "unrecognized ms_type '" << type << "'" << dendl;
return nullptr;
}
/**
* Get the default crc flags for this messenger.
* but not yet dispatched.
*/
static int get_default_crc_flags(const ConfigProxy&);
Messenger::Messenger(CephContext *cct_, entity_name_t w)
: trace_endpoint("0.0.0.0", 0, "Messenger"),
my_name(w),
default_send_priority(CEPH_MSG_PRIO_DEFAULT),
started(false),
magic(0),
socket_priority(-1),
cct(cct_),
crcflags(get_default_crc_flags(cct->_conf)),
auth_registry(cct)
{
auth_registry.refresh_config();
}
void Messenger::set_endpoint_addr(const entity_addr_t& a,
const entity_name_t &name)
{
size_t hostlen;
if (a.get_family() == AF_INET)
hostlen = sizeof(struct sockaddr_in);
else if (a.get_family() == AF_INET6)
hostlen = sizeof(struct sockaddr_in6);
else
hostlen = 0;
if (hostlen) {
char buf[NI_MAXHOST] = { 0 };
getnameinfo(a.get_sockaddr(), hostlen, buf, sizeof(buf),
NULL, 0, NI_NUMERICHOST);
trace_endpoint.copy_ip(buf);
}
trace_endpoint.set_port(a.get_port());
}
/**
* Get the default crc flags for this messenger.
* but not yet dispatched.
*
* Pre-calculate desired software CRC settings. CRC computation may
* be disabled by default for some transports (e.g., those with strong
* hardware checksum support).
*/
int get_default_crc_flags(const ConfigProxy& conf)
{
int r = 0;
if (conf->ms_crc_data)
r |= MSG_CRC_DATA;
if (conf->ms_crc_header)
r |= MSG_CRC_HEADER;
return r;
}
int Messenger::bindv(const entity_addrvec_t& addrs)
{
return bind(addrs.legacy_addr());
}
bool Messenger::ms_deliver_verify_authorizer(
Connection *con,
int peer_type,
int protocol,
bufferlist& authorizer,
bufferlist& authorizer_reply,
bool& isvalid,
CryptoKey& session_key,
std::string *connection_secret,
std::unique_ptr<AuthAuthorizerChallenge> *challenge)
{
if (authorizer.length() == 0) {
for (auto dis : dispatchers) {
if (!dis->require_authorizer) {
//ldout(cct,10) << __func__ << " tolerating missing authorizer" << dendl;
isvalid = true;
return true;
}
}
}
AuthAuthorizeHandler *ah = auth_registry.get_handler(peer_type, protocol);
if (get_mytype() == CEPH_ENTITY_TYPE_MON &&
peer_type != CEPH_ENTITY_TYPE_MON) {
// the monitor doesn't do authenticators for msgr1.
isvalid = true;
return true;
}
if (!ah) {
lderr(cct) << __func__ << " no AuthAuthorizeHandler found for protocol "
<< protocol << dendl;
isvalid = false;
return false;
}
for (auto dis : dispatchers) {
KeyStore *ks = dis->ms_get_auth1_authorizer_keystore();
if (ks) {
isvalid = ah->verify_authorizer(
cct,
ks,
authorizer,
0,
&authorizer_reply,
&con->peer_name,
&con->peer_global_id,
&con->peer_caps_info,
&session_key,
connection_secret,
challenge);
if (isvalid) {
return dis->ms_handle_authentication(con)>=0;
}
return true;
}
}
return false;
}
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