+++ /dev/null
-// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
-// vim: ts=8 sw=2 smarttab
-/*
- * Ceph - scalable distributed file system
- *
- * Copyright (C) 2004-2012 Inktank
- *
- * This is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License version 2.1, as published by the Free Software
- * Foundation. See file COPYING.
- *
- */
-
-#include "common/pick_address.h"
-#include "include/ipaddr.h"
-#include "include/str_list.h"
-#include "common/debug.h"
-#include "common/errno.h"
-
-#include <netdb.h>
-
-#define dout_subsys ceph_subsys_
-
-const struct sockaddr *find_ip_in_subnet_list(
- CephContext *cct,
- const struct ifaddrs *ifa,
- const std::string &networks,
- const std::string &interfaces)
-{
- std::list<string> nets;
- get_str_list(networks, nets);
- std::list<string> ifs;
- get_str_list(interfaces, ifs);
-
- // filter interfaces by name
- const struct ifaddrs *filtered = 0;
- if (ifs.empty()) {
- filtered = ifa;
- } else {
- if (nets.empty()) {
- lderr(cct) << "interface names specified but not network names" << dendl;
- exit(1);
- }
- const struct ifaddrs *t = ifa;
- struct ifaddrs *head = 0;
- while (t != NULL) {
- bool match = false;
- for (auto& i : ifs) {
- if (strcmp(i.c_str(), t->ifa_name) == 0) {
- match = true;
- break;
- }
- }
- if (match) {
- struct ifaddrs *n = new ifaddrs;
- memcpy(n, t, sizeof(*t));
- n->ifa_next = head;
- head = n;
- }
- t = t->ifa_next;
- }
- if (head == NULL) {
- lderr(cct) << "no interfaces matching " << ifs << dendl;
- exit(1);
- }
- filtered = head;
- }
-
- struct sockaddr *r = NULL;
- for (std::list<string>::iterator s = nets.begin(); s != nets.end(); ++s) {
- struct sockaddr_storage net;
- unsigned int prefix_len;
-
- if (!parse_network(s->c_str(), &net, &prefix_len)) {
- lderr(cct) << "unable to parse network: " << *s << dendl;
- exit(1);
- }
-
- const struct ifaddrs *found = find_ip_in_subnet(
- filtered,
- (struct sockaddr *) &net, prefix_len);
- if (found) {
- r = found->ifa_addr;
- break;
- }
- }
-
- if (filtered != ifa) {
- while (filtered) {
- struct ifaddrs *t = filtered->ifa_next;
- delete filtered;
- filtered = t;
- }
- }
-
- return r;
-}
-
-// observe this change
-struct Observer : public md_config_obs_t {
- const char *keys[2];
- explicit Observer(const char *c) {
- keys[0] = c;
- keys[1] = NULL;
- }
-
- const char** get_tracked_conf_keys() const override {
- return (const char **)keys;
- }
- void handle_conf_change(const struct md_config_t *conf,
- const std::set <std::string> &changed) override {
- // do nothing.
- }
-};
-
-static void fill_in_one_address(CephContext *cct,
- const struct ifaddrs *ifa,
- const string networks,
- const string interfaces,
- const char *conf_var)
-{
- const struct sockaddr *found = find_ip_in_subnet_list(cct, ifa, networks,
- interfaces);
- if (!found) {
- lderr(cct) << "unable to find any IP address in networks '" << networks
- << "' interfaces '" << interfaces << "'" << dendl;
- exit(1);
- }
-
- char buf[INET6_ADDRSTRLEN];
- int err;
-
- err = getnameinfo(found,
- (found->sa_family == AF_INET)
- ? sizeof(struct sockaddr_in)
- : sizeof(struct sockaddr_in6),
-
- buf, sizeof(buf),
- NULL, 0,
- NI_NUMERICHOST);
- if (err != 0) {
- lderr(cct) << "unable to convert chosen address to string: " << gai_strerror(err) << dendl;
- exit(1);
- }
-
- Observer obs(conf_var);
-
- cct->_conf->add_observer(&obs);
-
- cct->_conf->set_val_or_die(conf_var, buf);
- cct->_conf->apply_changes(NULL);
-
- cct->_conf->remove_observer(&obs);
-}
-
-void pick_addresses(CephContext *cct, int needs)
-{
- struct ifaddrs *ifa;
- int r = getifaddrs(&ifa);
- if (r<0) {
- string err = cpp_strerror(errno);
- lderr(cct) << "unable to fetch interfaces and addresses: " << err << dendl;
- exit(1);
- }
-
- if ((needs & CEPH_PICK_ADDRESS_PUBLIC)
- && cct->_conf->public_addr.is_blank_ip()
- && !cct->_conf->public_network.empty()) {
- fill_in_one_address(cct, ifa, cct->_conf->public_network,
- cct->_conf->get_val<string>("public_network_interface"),
- "public_addr");
- }
-
- if ((needs & CEPH_PICK_ADDRESS_CLUSTER)
- && cct->_conf->cluster_addr.is_blank_ip()) {
- if (!cct->_conf->cluster_network.empty()) {
- fill_in_one_address(
- cct, ifa, cct->_conf->cluster_network,
- cct->_conf->get_val<string>("cluster_network_interface"),
- "cluster_addr");
- } else {
- if (!cct->_conf->public_network.empty()) {
- lderr(cct) << "Public network was set, but cluster network was not set " << dendl;
- lderr(cct) << " Using public network also for cluster network" << dendl;
- fill_in_one_address(
- cct, ifa, cct->_conf->public_network,
- cct->_conf->get_val<string>("public_network_interface"),
- "cluster_addr");
- }
- }
- }
-
- freeifaddrs(ifa);
-}
-
-
-std::string pick_iface(CephContext *cct, const struct sockaddr_storage &network)
-{
- struct ifaddrs *ifa;
- int r = getifaddrs(&ifa);
- if (r < 0) {
- string err = cpp_strerror(errno);
- lderr(cct) << "unable to fetch interfaces and addresses: " << err << dendl;
- return {};
- }
-
- unsigned int prefix_len = 0;
- const struct ifaddrs *found = find_ip_in_subnet(ifa,
- (const struct sockaddr *) &network, prefix_len);
-
- std::string result;
- if (found) {
- result = found->ifa_name;
- }
-
- freeifaddrs(ifa);
-
- return result;
-}
-
-
-bool have_local_addr(CephContext *cct, const list<entity_addr_t>& ls, entity_addr_t *match)
-{
- struct ifaddrs *ifa;
- int r = getifaddrs(&ifa);
- if (r < 0) {
- lderr(cct) << "unable to fetch interfaces and addresses: " << cpp_strerror(errno) << dendl;
- exit(1);
- }
-
- bool found = false;
- for (struct ifaddrs *addrs = ifa; addrs != NULL; addrs = addrs->ifa_next) {
- if (addrs->ifa_addr) {
- entity_addr_t a;
- a.set_sockaddr(addrs->ifa_addr);
- for (list<entity_addr_t>::const_iterator p = ls.begin(); p != ls.end(); ++p) {
- if (a.is_same_host(*p)) {
- *match = *p;
- found = true;
- goto out;
- }
- }
- }
- }
-
- out:
- freeifaddrs(ifa);
- return found;
-}
Code Review / stor4nfv.git / blobdiff