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-rw-r--r--NetworkDiscovery/networkmanager.cpp676
1 files changed, 0 insertions, 676 deletions
diff --git a/NetworkDiscovery/networkmanager.cpp b/NetworkDiscovery/networkmanager.cpp
deleted file mode 100644
index 6f8ae7e..0000000
--- a/NetworkDiscovery/networkmanager.cpp
+++ /dev/null
@@ -1,676 +0,0 @@
-/*
- * networkmanager.cpp
- *
- * Created on: Sep 5, 2011
- * Author: niklas
- */
-
-#include "networkmanager.h"
-
-NetworkManager::NetworkManager() {
- // TODO Auto-generated constructor stub
- _tag = "[nd:NetworkManager]";
-}
-
-
-
-NetworkManager::~NetworkManager() {
- // TODO Auto-generated destructor stub
-}
-
-
-
-/**
- * This method adds /replaces the default route.
- * This method adds /replaces the default route.
- * To keep it modular, it is possible
- * to specify an ip address family.
- *
- * @param ifName
- * the interface name
- *
- * @param gateway
- * the gateway address (e.g: 192.168.0.254)
- * @param mss
- * the mss.
- * @param af
- * specify the family type of the ip address.
- * possible values are: AF_INET for an IPv4 address
- * AF_INET6 for an IPv6 address
- *
-
- * @return
- * return -1 if an error happened.
- * return 0 if everything was ok.
- */
-int NetworkManager::replaceDefaultRoute(QString ifname, QString gateway,
- int mss, int af) {
- struct nl_cache *cache;
- struct nl_handle* rtsock;
- struct nl_addr * gw;
- struct rtnl_route * route;
- int retval, iface_idx;
-
- QByteArray ba_ifn = ifname.toAscii();
- char * ifn = ba_ifn.data();
-
- QByteArray ba_gw = gateway.toAscii();
- char * gwaddr = ba_gw.data();
-
- qDebug() << _tag << "---doRoute() gwaddr" << gwaddr;
-
- if (!(gw = nl_addr_parse(gwaddr, af))) {
- qDebug() << _tag << "Invalid gateway address given:" << gwaddr;
- return -1;
- }
-
- rtsock = nl_handle_alloc();
- nl_connect(rtsock, NETLINK_ROUTE);
-
- if ((cache = rtnl_link_alloc_cache(rtsock)) == NULL) {
- qDebug() << _tag << "error with link cache alloc \n";
- }
-
- iface_idx = rtnl_link_name2i(cache, ifn);
-
- route = rtnl_route_alloc();
- rtnl_route_set_scope(route, RT_SCOPE_UNIVERSE);
- rtnl_route_set_gateway(route, gw);
- rtnl_route_set_oif(route, iface_idx);
-
- if (mss > 0) {
- rtnl_route_set_metric(route, RTAX_ADVMSS, mss);
- }
-
- retval = rtnl_route_add(rtsock, route, NLM_F_REPLACE);
- qDebug() << _tag << "return value:" << retval << ":" << strerror(-retval);
-
- rtnl_route_put(route);
- nl_addr_put(gw);
- nl_handle_destroy(rtsock);
-
- return retval;
-}
-
-
-
-/**/
-int NetworkManager::ip6_addRoute(const char *iface,
- const struct in6_addr *ip6_dest, int ip6_prefix,
- const struct in6_addr *ip6_gateway, int metric, int mss) {
- struct nl_cache *cache;
- struct nl_handle *nlh;
- struct rtnl_route *route;
- struct nl_addr *dest_addr;
- struct nl_addr *gw_addr = NULL;
- int err, iface_idx;
-
- nlh = nl_handle_alloc();
- nl_connect(nlh, NETLINK_ROUTE);
-
- if ((cache = rtnl_link_alloc_cache(nlh)) == NULL) {
- //qDebug() << _tag << "error with link cache alloc \n";
- printf("error with link cache alloc \n");
- }
-
- iface_idx = rtnl_link_name2i(cache, iface);
-
- route = rtnl_route_alloc();
-
- /* Destination */
- dest_addr = nl_addr_build(AF_INET6, (struct in6_addr *) ip6_dest,
- sizeof(*ip6_dest));
- nl_addr_set_prefixlen(dest_addr, (int) ip6_prefix);
-
- rtnl_route_set_dst(route, dest_addr);
- nl_addr_put(dest_addr);
-
- /* Gateway */
- if (ip6_gateway && !IN6_IS_ADDR_UNSPECIFIED (ip6_gateway)) {
- gw_addr = nl_addr_build(AF_INET6, (struct in6_addr *) ip6_gateway,
- sizeof(*ip6_gateway));
- if (gw_addr) {
- rtnl_route_set_gateway(route, gw_addr);
- rtnl_route_set_scope(route, RT_SCOPE_UNIVERSE);
- } else {
- rtnl_route_put(route);
- return -1;
- }
- }
-
- /* Metric */
- if (metric)
- rtnl_route_set_prio(route, metric);
-
- /* Add the route */
- err = rtnl_route_add(nlh, route, 0);
- if (err == -ESRCH && ip6_gateway) {
- /* Gateway might be over a bridge; try adding a route to gateway first */
- struct rtnl_route *route2;
-
- route2 = create_route(iface_idx, mss);
- if (route2) {
- /* Add route to gateway over bridge */
- rtnl_route_set_dst(route2, gw_addr);
- err = rtnl_route_add(nlh, route2, 0);
- if (!err) {
- /* Try adding the route again */
- err = rtnl_route_add(nlh, route, 0);
- if (err)
- rtnl_route_del(nlh, route2, 0);
- }
- rtnl_route_put(route2);
- }
- }
-
- if (gw_addr)
- nl_addr_put(gw_addr);
-
- if (err) {
- //nm_warning ("Failed to set IPv6 route on '%s': %s", iface, nl_geterror ());
- rtnl_route_put(route);
- route = NULL;
- }
-
- return 0;
-}
-
-
-
-struct rtnl_route * NetworkManager::create_route (int iface_idx, int mss)
-{
- struct rtnl_route *route;
-
- route = rtnl_route_alloc ();
- if (route) {
- rtnl_route_set_oif (route, iface_idx);
-
- if (mss && rtnl_route_set_metric (route, RTAX_ADVMSS, mss) < 0) {
- //nm_warning ("Could not set mss");
- }
- } else
- //nm_warning ("Could not allocate route");
-
- return route;
-}
-
-
-
-/**
- * The method brings an interface up.
- *
- * @param ifname
- * the name of the interface
- *
- * @return
- * 0 -> success
- * -1 -> error
- */
-int NetworkManager::bringInterfaceUP(QString ifname) {
- return bringInterfaceUpDown(ifname, true);
-}
-
-
-
-/**
- * The method brings an interface down.
- *
- * @param ifname
- * the name of the interface
- *
- * @return
- * 0 -> success
- * -1 -> error
- */
-int NetworkManager::bringInterfaceDown(QString ifname) {
- return bringInterfaceUpDown(ifname, false);
-}
-
-
-
-/**
- * This method brings an interface up or down.
- *
- * @param ifname
- * is a string which contains the interface name which is going down or up.
- *
- * @param up
- * is a bool. true means. we bring the interface up.
- * false meand. we bring the interface down.
- * @return
- * 0 if everything is ok
- * else an error
- */
-int NetworkManager::bringInterfaceUpDown(QString ifname, bool up) {
- struct nl_cache *cache;
- struct nl_handle* rtsock;
- struct rtnl_link* request = NULL;
- struct rtnl_link* old = NULL;
- int retval;
-
- QByteArray ba_ifn = ifname.toAscii();
- char * ifn = ba_ifn.data();
-
- if (!(request = rtnl_link_alloc())) {
- qDebug() << _tag << "error. couldn't allocate a rtnl link";
- return -1;
- }
-
- rtsock = nl_handle_alloc();
- nl_connect(rtsock, NETLINK_ROUTE);
-
- if (up) {
- rtnl_link_set_flags(request, IFF_UP);
- } else {
- rtnl_link_unset_flags(request, IFF_UP);
- }
-
- if ((cache = rtnl_link_alloc_cache(rtsock)) == NULL) {
- qDebug() << _tag << "error with link cache alloc ";
- }
-
- old = rtnl_link_get_by_name(cache, ifn);
- if (old) {
- qDebug() << _tag << "change link";
- retval = rtnl_link_change(rtsock, old, request, 0);
- } else {
- qDebug() << _tag << "change failed";
- retval = -1;
- qDebug() << _tag << "return value:" << retval << ":" << strerror(-retval);
- }
-
- rtnl_link_put(old);
- rtnl_link_put(request);
- nl_handle_destroy(rtsock);
-
- return retval;
-}
-
-
-
-/**
- * This method is used when the manual configuration is needed.
- *
- * This method is used when the manual configuration is needed.
- * First we bring up the interface. Than we configure the interface with
- * our manual entered configuration dates.
- * After that we replace the old default route with the new and
- * write a resolv.conf.
- *
- * @param ifname
- * name of the interface which we are about to configure.
- *
- * @param ipAddress
- * the new IP-Address.
- *
- * @param netmask
- * the netmask of the IP-Address.
- *
- * @param broadcast
- * the broadcast address.
- * @param gateway
- * the gateway address.
- * @param metric
- * do not exactly know why we need this. in most cases this should be 0.
- * @param af
- * the address type. Either AF_INET for IPv4 or AF_INET6 for IPv6.
- * @param pathToResolvConf
- * the path to the resolf.conf file. in most cases "/etc/".
- * @param nameServer
- * the name server addresses.
- */
-int NetworkManager::ip4_setManualConfiguration(QString ifname, QString ipAddress, QString netmask,
- QString broadcast, QString gateway, int metric, int af, QString pathToResolvConf, QList<QString> nameServer) {
-
- //bring the interface up
- bringInterfaceUP(ifname);
- //set configuration
- ip4_configureInterface(ifname, ipAddress, broadcast, netmask,af);
- //set default route
- replaceDefaultRoute(ifname, gateway, metric, af);
- //write resolv.conf
- writeResolvConf(pathToResolvConf, ifname, nameServer);
- return 0;
-}
-
-
-
-int NetworkManager::ip4_configureInterface(QString ifname, QString ipAddress,
- QString broadcast, QString netmask, int af) {
-
- struct nl_cache *cache;
- struct nl_handle* rtsock;
- struct nl_addr * local;
- struct rtnl_addr * addr = NULL;
- int retval = 0;
- int iface_idx, err, prefixLength;
-
- QByteArray ba_ifn = ifname.trimmed().toAscii();
- char * ifn = ba_ifn.data();
-
- QByteArray ba_ip = ipAddress.trimmed().toAscii();
- char * ipaddr = ba_ip.data();
-
- QByteArray ba_bc = broadcast.trimmed().toAscii();
- char * bcaddr = ba_bc.data();
-
- rtsock = nl_handle_alloc();
- nl_connect(rtsock, NETLINK_ROUTE);
-
- if ((cache = rtnl_link_alloc_cache(rtsock)) == NULL) {
- qDebug() << _tag << "error with link cache alloc";
- return -1;
- }
-
- iface_idx = rtnl_link_name2i(cache, ifn);
-
- if (!(addr = rtnl_addr_alloc())) {
- qDebug() << _tag << "error with addr alloc";
- return -1;
- }
-
- local = nl_addr_parse(ipaddr, af);
- err = rtnl_addr_set_local(addr, local);
- nl_addr_put(local);
- if (err != 0) {
- qDebug() << _tag << "error with set local addr";
- }
-
- prefixLength = ip4_netmaskToPrefix(ipAddress,netmask);
- qDebug() << _tag << "prefix length:" << prefixLength;
- rtnl_addr_set_prefixlen(addr, prefixLength);
-
- local = nl_addr_parse(bcaddr, af);
- err = rtnl_addr_set_broadcast(addr, local);
- nl_addr_put(local);
- if (err != 0) {
- qDebug() << _tag << "error with set broadcast addr";
- }
-
- rtnl_addr_set_ifindex(addr, iface_idx);
-
-
- retval = sync_address(ifn, iface_idx, af, addr);
- if(retval < 0) {
- qDebug() << _tag << "error in sync_address";
- }
- rtnl_addr_put(addr);
-
- return retval;
-}
-
-
-
-/**
- * This Method returns the length of the IP-Address netmask prefix.
- *
- * @param ipAddr
- * the IP-address
- *
- * @param netmask
- * the netmask of the IP-address.
- * @return
- * the length of the IP-Address netmask prefix
- */
-int NetworkManager::ip4_netmaskToPrefix(QString ipAddr, QString netmask) {
- int retval = -1;
- QNetworkAddressEntry nae;
-
- if (netmask == "") {
- qDebug() << _tag << "error: netmask is empty";
- return retval;
- }
- nae.setIp(QHostAddress(ipAddr));
- nae.setNetmask(QHostAddress(netmask.trimmed()));
- retval = nae.prefixLength();
-
- return retval;
-}
-
-
-
-int NetworkManager::ip6_addAddress(struct ip6_addr* ip6Addr, const char *iface) {
- int num_addrs, i, iface_idx;
- struct rtnl_addr* addr = NULL;
- struct nl_cache *cache;
- struct nl_handle* rtsock;
-
- rtsock = nl_handle_alloc();
- nl_connect(rtsock, NETLINK_ROUTE);
-
- if ((cache = rtnl_link_alloc_cache(rtsock)) == NULL) {
- qDebug() << _tag << "error with link cache alloc";
- return -1;
- }
-
- iface_idx = rtnl_link_name2i(cache, iface);
-
- addr = ip6AddrToRtnlAddr(ip6Addr);
- if (!addr) {
- //nm_warning("couldn't create rtnl address!\n");
- return -1;
- }
- rtnl_addr_set_ifindex(addr, iface_idx);
-
- return sync_address(iface, iface_idx, AF_INET6, addr);
-}
-
-
-
-/**/
-struct rtnl_addr* NetworkManager::ip6AddrToRtnlAddr(struct ip6_addr* ip6Addr) {
- struct rtnl_addr *addr;
- bool success = true;
-
- if (!(addr = rtnl_addr_alloc()))
- return NULL;
-
- success = (nlAddrToRtnlAddr(ip6Addr, addr) >= 0);
-
- if (!success) {
- rtnl_addr_put(addr);
- addr = NULL;
- }
-
- return addr;
-}
-
-
-
-/**/
-struct nl_addr* NetworkManager::ip6AddrToNlAddr(const struct ip6_addr *ip6Addr) {
- struct nl_addr * nla = NULL;
-
- if (!(nla = nl_addr_alloc(sizeof(struct in6_addr))))
- return NULL;
- nl_addr_set_family(nla, AF_INET6);
- nl_addr_set_binary_addr(nla, (struct in6_addr *) ip6Addr, sizeof(struct in6_addr));
-
- return nla;
-}
-
-
-
-/**/
-int NetworkManager::nlAddrToRtnlAddr(
- const struct ip6_addr* ip6Addr, struct rtnl_addr* addr) {
- struct nl_addr * local = NULL;
- int err = 0;
-
- local = ip6AddrToNlAddr(ip6Addr);
- err = rtnl_addr_set_local(addr, local);
- nl_addr_put(local);
-
- return -err;
-}
-
-
-
-/**
- * delete all addresses of this interface but not the one we just set
- *
- * @return
- * -1 if something went wrong. else 0
- */
-int NetworkManager::sync_address(const char *iface, int ifindex, int family,
- struct rtnl_addr *addr) {
-
- struct nl_handle *nlh;
- struct nl_cache *addr_cache;
- struct rtnl_addr *filter_addr, *match_addr;
- struct nl_object *match;
- struct nl_addr *nladdr;
- int err;
- char buf[INET6_ADDRSTRLEN + 1];
-
- nlh = nl_handle_alloc();
- nl_connect(nlh, NETLINK_ROUTE);
-
- if (!nlh)
- return -1;
-
- addr_cache = rtnl_addr_alloc_cache(nlh);
-
- if (!addr_cache)
- return -1;
-
- filter_addr = rtnl_addr_alloc();
- if (!filter_addr) {
- nl_cache_free(addr_cache);
- return -1;
- }
- rtnl_addr_set_ifindex(filter_addr, ifindex);
- if (family)
- rtnl_addr_set_family(filter_addr, family);
-
- //nm_log_dbg (log_domain, "(%s): syncing addresses (family %d)", iface, family);
-
- /* Walk through the cache, comparing the addresses already on
- * the interface to the addresses in addrs.
- */
- for (match = nl_cache_get_first(addr_cache); match; match
- = nl_cache_get_next(match)) {
- int buf_valid = -1;
- match_addr = (struct rtnl_addr *) match;
-
- /* Skip addresses not on our interface */
- if (!nl_object_match_filter(match, (struct nl_object *) filter_addr))
- continue;
-
- if (addr) {
- if (addr && nl_object_identical(match, (struct nl_object *) addr)) {
- continue;
- }
- }
-
- nladdr = rtnl_addr_get_local(match_addr);
-
- /* Don't delete IPv6 link-local addresses; they don't belong to NM */
- if (rtnl_addr_get_family(match_addr) == AF_INET6) {
- struct in6_addr *tmp;
-
- if (rtnl_addr_get_scope(match_addr) == RT_SCOPE_LINK) {
- //nm_log_dbg (log_domain, "(%s): ignoring IPv6 link-local address", iface);
- continue;
- }
-
- tmp = (in6_addr*) nl_addr_get_binary_addr(nladdr);
- if (inet_ntop(AF_INET6, tmp, buf, sizeof(buf)))
- buf_valid = 0;
- } else if (rtnl_addr_get_family(match_addr) == AF_INET) {
- struct in_addr *tmp;
-
- tmp = (in_addr *) nl_addr_get_binary_addr(nladdr);
- if (inet_ntop(AF_INET, tmp, buf, sizeof(buf)))
- buf_valid = 0;
- }
-
- if (buf_valid == 0) {
- //nm_log_dbg (log_domain, "(%s): removing address '%s/%d'",
- // iface, buf, nl_addr_get_prefixlen (nladdr));
- }
-
- /* Otherwise, match_addr should be removed from the interface. */
- err = rtnl_addr_delete(nlh, match_addr, 0);
- if (err < 0) {
- //nm_log_err (log_domain, "(%s): error %d returned from rtnl_addr_delete(): %s",
- // iface, err, nl_geterror ());
- qDebug() << _tag << "error with delete addr";
- }
- }
-
- rtnl_addr_put(filter_addr);
- nl_cache_free(addr_cache);
-
- /* Now add the remaining new addresses */
- if (!addr)
- return -1;
-
- struct in6_addr *in6tmp;
- struct in_addr *in4tmp;
- int buf_valid = -1;
-
- nladdr = rtnl_addr_get_local(addr);
- if (rtnl_addr_get_family(addr) == AF_INET6) {
- in6tmp = (in6_addr*) nl_addr_get_binary_addr(nladdr);
- if (inet_ntop(AF_INET6, in6tmp, buf, sizeof(buf)))
- buf_valid = 0;
- } else if (rtnl_addr_get_family(addr) == AF_INET) {
- in4tmp = (in_addr*) nl_addr_get_binary_addr(nladdr);
- if (inet_ntop(AF_INET, in4tmp, buf, sizeof(buf)))
- buf_valid = 0;
- }
-
- if (buf_valid == 0) {
- //nm_log_dbg (log_domain, "(%s): adding address '%s/%d'",
- //iface, buf, nl_addr_get_prefixlen (nladdr));
- qDebug() << _tag << "buf valid adding addr";
- }
-
- err = rtnl_addr_add(nlh, addr, 0);
- if (err < 0) {
- //nm_log_err (log_domain,
- // "(%s): error %d returned from rtnl_addr_add():\n%s",
- // iface, err, nl_geterror ());
- qDebug() << _tag << "error with add addr"<< strerror(-err);
- }
-
- rtnl_addr_put(addr);
-
- return err;
-}
-
-
-
-/**
- * This method writes a resolv.conf file.
- *
- * @param path
- * path to the resolv.conf file. (in most cases: /etc/)
- * @param ifname
- * name of the interface
- * @param
- * addresses of the nameserver
- *
- * @return
- * return 0 if success
- * else -1
- */
-int NetworkManager::writeResolvConf(QString path, QString ifname, QList<QString> nameServer){
-
- QFile file(path + "resolv.conf");
- if(!file.open(QIODevice::WriteOnly | QIODevice::Text)) {
- qDebug() << _tag << "error couldn't open file:" << path;
- return -1;
- }
- QTextStream out(&file);
- out << "# Generated by networkdiscovery manual configuration for interface " + ifname +"\n";
- foreach(QString ns, nameServer ) {
- out << "nameserver " + ns +"\n";
- }
-
- file.close();
-
- return 0;
-}
-