Source: ../../fea/ifconfig_set.hh
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// -*- c-basic-offset: 4; tab-width: 8; indent-tabs-mode: t -*-
// Copyright (c) 2001-2007 International Computer Science Institute
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software")
// to deal in the Software without restriction, subject to the conditions
// listed in the XORP LICENSE file. These conditions include: you must
// preserve this copyright notice, and you cannot mention the copyright
// holders in advertising related to the Software without their permission.
// The Software is provided WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED. This
// notice is a summary of the XORP LICENSE file; the license in that file is
// legally binding.
// $XORP: xorp/fea/ifconfig_set.hh,v 1.44 2007/02/16 22:45:43 pavlin Exp $
#ifndef __FEA_IFCONFIG_SET_HH__
#define __FEA_IFCONFIG_SET_HH__
#include "iftree.hh"
#include <map>
class IfConfig;
class RunCommand;
class IfConfigSet {
public:
IfConfigSet(IfConfig& ifc);
virtual ~IfConfigSet();
IfConfig& ifc() { return _ifc; }
virtual void register_ifc_primary();
virtual void register_ifc_secondary();
virtual void set_primary() { _is_primary = true; }
virtual void set_secondary() { _is_primary = false; }
virtual bool is_primary() const { return _is_primary; }
virtual bool is_secondary() const { return !_is_primary; }
virtual bool is_running() const { return _is_running; }
/**
* Start operation.
*
* @param error_msg the error message (if error).
* @return XORP_OK on success, otherwise XORP_ERROR.
*/
virtual int start(string& error_msg) = 0;
/**
* Stop operation.
*
* @param error_msg the error message (if error).
* @return XORP_OK on success, otherwise XORP_ERROR.
*/
virtual int stop(string& error_msg) = 0;
/**
* Push the network interface configuration into the underlying system.
*
* Note that on return some of the interface tree configuration state
* may be modified.
*
* @param config the interface tree configuration to push.
* @return true on success, otherwise false.
*/
virtual bool push_config(IfTree& config);
/**
* Determine if the interface's underlying provider implements discard
* semantics natively, or if they are emulated through other means.
*
* @param i the interface item to inspect.
* @return true if discard semantics are emulated.
*/
virtual bool is_discard_emulated(const IfTreeInterface& i) const = 0;
protected:
/**
* Start the configuration.
*
* @param error_msg the error message (if error).
* @return XORP_OK on success, otherwise XORP_ERROR.
*/
virtual int config_begin(string& error_msg) = 0;
/**
* Complete the configuration.
*
* @param error_msg the error message (if error).
* @return XORP_OK on success, otherwise XORP_ERROR.
*/
virtual int config_end(string& error_msg) = 0;
/**
* Add an interface.
*
* @param ifname the interface name.
* @param if_index the interface index.
* @param error_msg the error message (if error).
* @return XORP_OK on success, otherwise XORP_ERROR.
*/
virtual int add_interface(const string& ifname,
uint32_t if_index,
string& error_msg) = 0;
/**
* Add a vif.
*
* @param ifname the interface name.
* @param vifname the vif name.
* @param if_index the interface index.
* @param error_msg the error message (if error).
* @return XORP_OK on success, otherwise XORP_ERROR.
*/
virtual int add_vif(const string& ifname,
const string& vifname,
uint32_t if_index,
string& error_msg) = 0;
/**
* Configure an interface.
*
* @param ifname the interface name.
* @param if_index the interface index.
* @param flags the flags to set on the interface.
* @param is_up if true, the interface is UP, otherwise is DOWN.
* @param is_deleted if true, the interface is deleted.
* @param error_msg the error message (if error).
* @return XORP_OK on success, otherwise XORP_ERROR.
*/
virtual int config_interface(const string& ifname,
uint32_t if_index,
uint32_t flags,
bool is_up,
bool is_deleted,
string& error_msg) = 0;
/**
* Configure a vif.
*
* @param ifname the interface name.
* @param vifname the vif name.
* @param if_index the interface index.
* @param flags the flags to set on the vif.
* @param is_up if true, the vif is UP, otherwise is DOWN.
* @param is_deleted if true, the vif is deleted.
* @param broadcast if true, the vif is broadcast capable.
* @param loopback if true, the vif corresponds to the loopback interface.
* @param point_to_point if true, the vif is a point-to-point interface.
* @param multicast if true, the vif is multicast capable.
* @param error_msg the error message (if error).
* @return XORP_OK on success, otherwise XORP_ERROR.
*/
virtual int config_vif(const string& ifname,
const string& vifname,
uint32_t if_index,
uint32_t flags,
bool is_up,
bool is_deleted,
bool broadcast,
bool loopback,
bool point_to_point,
bool multicast,
string& error_msg) = 0;
/**
* Set the MAC address of an interface.
*
* @param ifname the interface name.
* @param if_index the interface index.
* @param ether_addr the Ethernet MAC address to set.
* @param error_msg the error message (if error).
* @return XORP_OK on success, otherwise XORP_ERROR.
*/
virtual int set_interface_mac_address(const string& ifname,
uint32_t if_index,
const struct ether_addr& ether_addr,
string& error_msg) = 0;
/**
* Set the MTU of an interface.
*
* @param ifname the interface name.
* @param if_index the interface index.
* @param mtu the MTU to set.
* @param error_msg the error message (if error).
* @return XORP_OK on success, otherwise XORP_ERROR.
*/
virtual int set_interface_mtu(const string& ifname,
uint32_t if_index,
uint32_t mtu,
string& error_msg) = 0;
/**
* Add an address to a vif.
*
* @param ifname the interface name.
* @param vifname the vif name.
* @param if_index the interface index.
* @param is_broadcast true if @ref dst_or_bcast is a broadcast address.
* @param is_p2p true if dst_or_bcast is a destination/peer address.
* @param addr the address to add.
* @param dst_or_bcast the broadcast or the destination/peer address.
* @param prefix_len the prefix length of the subnet mask.
* @param error_msg the error message (if error).
* @return XORP_OK on success, otherwise XORP_ERROR.
*/
virtual int add_vif_address(const string& ifname,
const string& vifname,
uint32_t if_index,
bool is_broadcast,
bool is_p2p,
const IPvX& addr,
const IPvX& dst_or_bcast,
uint32_t prefix_len,
string& error_msg) = 0;
/**
* Delete an address from a vif.
*
* @param ifname the interface name.
* @param vifname the vif name.
* @param if_index the interface index.
* @param addr the address to delete.
* @param prefix_len the prefix length of the subnet mask.
* @param error_msg the error message (if error).
* @return XORP_OK on success, otherwise XORP_ERROR.
*/
virtual int delete_vif_address(const string& ifname,
const string& vifname,
uint32_t if_index,
const IPvX& addr,
uint32_t prefix_len,
string& error_msg) = 0;
protected:
// Misc other state
bool _is_running;
private:
void push_iftree_begin();
void push_iftree_end();
void push_interface_begin(const IfTreeInterface& i);
void push_interface_end(IfTreeInterface& i);
void push_vif_begin(const IfTreeInterface& i, const IfTreeVif& v);
void push_vif_end(const IfTreeInterface& i, const IfTreeVif& v);
void push_vif_address(const IfTreeInterface& i, const IfTreeVif& v,
const IfTreeAddr4& a);
void push_vif_address(const IfTreeInterface& i, const IfTreeVif& v,
const IfTreeAddr6& a);
IfConfig& _ifc;
bool _is_primary; // True -> primary, false -> secondary method
};
class IfConfigSetDummy : public IfConfigSet {
public:
IfConfigSetDummy(IfConfig& ifc);
virtual ~IfConfigSetDummy();
/**
* Start operation.
*
* @param error_msg the error message (if error).
* @return XORP_OK on success, otherwise XORP_ERROR.
*/
virtual int start(string& error_msg);
/**
* Stop operation.
*
* @param error_msg the error message (if error).
* @return XORP_OK on success, otherwise XORP_ERROR.
*/
virtual int stop(string& error_msg);
/**
* Push the network interface configuration into the underlying system.
*
* Note that on return some of the interface tree configuration state
* may be modified.
*
* @param config the interface tree configuration to push.
* @return true on success, otherwise false.
*/
virtual bool push_config(IfTree& config);
/**
* Determine if the interface's underlying provider implements discard
* semantics natively, or if they are emulated through other means.
*
* @param i the interface item to inspect.
* @return true if discard semantics are emulated.
*/
virtual bool is_discard_emulated(const IfTreeInterface& i) const;
private:
virtual int config_begin(string& error_msg);
virtual int config_end(string& error_msg);
virtual int add_interface(const string& ifname,
uint32_t if_index,
string& error_msg);
virtual int add_vif(const string& ifname,
const string& vifname,
uint32_t if_index,
string& error_msg);
virtual int config_interface(const string& ifname,
uint32_t if_index,
uint32_t flags,
bool is_up,
bool is_deleted,
string& error_msg);
virtual int config_vif(const string& ifname,
const string& vifname,
uint32_t if_index,
uint32_t flags,
bool is_up,
bool is_deleted,
bool broadcast,
bool loopback,
bool point_to_point,
bool multicast,
string& error_msg);
virtual int set_interface_mac_address(const string& ifname,
uint32_t if_index,
const struct ether_addr& ether_addr,
string& error_msg);
virtual int set_interface_mtu(const string& ifname,
uint32_t if_index,
uint32_t mtu,
string& error_msg);
virtual int add_vif_address(const string& ifname,
const string& vifname,
uint32_t if_index,
bool is_broadcast,
bool is_p2p,
const IPvX& addr,
const IPvX& dst_or_bcast,
uint32_t prefix_len,
string& error_msg);
virtual int delete_vif_address(const string& ifname,
const string& vifname,
uint32_t if_index,
const IPvX& addr,
uint32_t prefix_len,
string& error_msg);
};
class IfConfigSetIoctl : public IfConfigSet {
public:
IfConfigSetIoctl(IfConfig& ifc);
virtual ~IfConfigSetIoctl();
/**
* Start operation.
*
* @param error_msg the error message (if error).
* @return XORP_OK on success, otherwise XORP_ERROR.
*/
virtual int start(string& error_msg);
/**
* Stop operation.
*
* @param error_msg the error message (if error).
* @return XORP_OK on success, otherwise XORP_ERROR.
*/
virtual int stop(string& error_msg);
/**
* Determine if the interface's underlying provider implements discard
* semantics natively, or if they are emulated through other means.
*
* @param i the interface item to inspect.
* @return true if discard semantics are emulated.
*/
virtual bool is_discard_emulated(const IfTreeInterface& i) const;
private:
virtual int config_begin(string& error_msg);
virtual int config_end(string& error_msg);
virtual int add_interface(const string& ifname,
uint32_t if_index,
string& error_msg);
virtual int add_vif(const string& ifname,
const string& vifname,
uint32_t if_index,
string& error_msg);
virtual int config_interface(const string& ifname,
uint32_t if_index,
uint32_t flags,
bool is_up,
bool is_deleted,
string& error_msg);
virtual int config_vif(const string& ifname,
const string& vifname,
uint32_t if_index,
uint32_t flags,
bool is_up,
bool is_deleted,
bool broadcast,
bool loopback,
bool point_to_point,
bool multicast,
string& error_msg);
virtual int set_interface_mac_address(const string& ifname,
uint32_t if_index,
const struct ether_addr& ether_addr,
string& error_msg);
virtual int set_interface_mtu(const string& ifname,
uint32_t if_index,
uint32_t mtu,
string& error_msg);
virtual int add_vif_address(const string& ifname,
const string& vifname,
uint32_t if_index,
bool is_broadcast,
bool is_p2p,
const IPvX& addr,
const IPvX& dst_or_bcast,
uint32_t prefix_len,
string& error_msg);
virtual int delete_vif_address(const string& ifname,
const string& vifname,
uint32_t if_index,
const IPvX& addr,
uint32_t prefix_len,
string& error_msg);
virtual int add_vif_address4(const string& ifname,
const string& vifname,
uint32_t if_index,
bool is_broadcast,
bool is_p2p,
const IPvX& addr,
const IPvX& dst_or_bcast,
uint32_t prefix_len,
string& error_msg);
virtual int add_vif_address6(const string& ifname,
const string& vifname,
uint32_t if_index,
bool is_p2p,
const IPvX& addr,
const IPvX& dst,
uint32_t prefix_len,
string& error_msg);
int _s4;
int _s6;
};
class IfConfigSetNetlink : public IfConfigSet,
public NetlinkSocket {
public:
IfConfigSetNetlink(IfConfig& ifc);
virtual ~IfConfigSetNetlink();
/**
* Start operation.
*
* @param error_msg the error message (if error).
* @return XORP_OK on success, otherwise XORP_ERROR.
*/
virtual int start(string& error_msg);
/**
* Stop operation.
*
* @param error_msg the error message (if error).
* @return XORP_OK on success, otherwise XORP_ERROR.
*/
virtual int stop(string& error_msg);
/**
* Determine if the interface's underlying provider implements discard
* semantics natively, or if they are emulated through other means.
*
* @param i the interface item to inspect.
* @return true if discard semantics are emulated.
*/
virtual bool is_discard_emulated(const IfTreeInterface& i) const;
private:
virtual int config_begin(string& error_msg);
virtual int config_end(string& error_msg);
virtual int add_interface(const string& ifname,
uint32_t if_index,
string& error_msg);
virtual int add_vif(const string& ifname,
const string& vifname,
uint32_t if_index,
string& error_msg);
virtual int config_interface(const string& ifname,
uint32_t if_index,
uint32_t flags,
bool is_up,
bool is_deleted,
string& error_msg);
virtual int config_vif(const string& ifname,
const string& vifname,
uint32_t if_index,
uint32_t flags,
bool is_up,
bool is_deleted,
bool broadcast,
bool loopback,
bool point_to_point,
bool multicast,
string& error_msg);
virtual int set_interface_mac_address(const string& ifname,
uint32_t if_index,
const struct ether_addr& ether_addr,
string& error_msg);
virtual int set_interface_mtu(const string& ifname,
uint32_t if_index,
uint32_t mtu,
string& error_msg);
virtual int add_vif_address(const string& ifname,
const string& vifname,
uint32_t if_index,
bool is_broadcast,
bool is_p2p,
const IPvX& addr,
const IPvX& dst_or_bcast,
uint32_t prefix_len,
string& error_msg);
virtual int delete_vif_address(const string& ifname,
const string& vifname,
uint32_t if_index,
const IPvX& addr,
uint32_t prefix_len,
string& error_msg);
NetlinkSocketReader _ns_reader;
};
class IfConfigSetClick : public IfConfigSet,
public ClickSocket {
private:
class ClickConfigGenerator;
public:
IfConfigSetClick(IfConfig& ifc);
virtual ~IfConfigSetClick();
/**
* Start operation.
*
* @param error_msg the error message (if error).
* @return XORP_OK on success, otherwise XORP_ERROR.
*/
virtual int start(string& error_msg);
/**
* Stop operation.
*
* @param error_msg the error message (if error).
* @return XORP_OK on success, otherwise XORP_ERROR.
*/
virtual int stop(string& error_msg);
/**
* Determine if the interface's underlying provider implements discard
* semantics natively, or if they are emulated through other means.
*
* @param i the interface item to inspect.
* @return true if discard semantics are emulated.
*/
virtual bool is_discard_emulated(const IfTreeInterface& i) const;
/**
* Get a reference to the @ref IfTree instance.
*
* @return a reference to the @ref IfTree instance.
*/
const IfTree& iftree() const { return _iftree; }
/**
* Receive a signal the work of a Click configuration generator is done.
*
* @param click_config_generator a pointer to the @ref
* IfConfigSetClick::ClickConfigGenerator instance that has completed
* its work.
* @param success if true, then the generator has successfully finished
* its work, otherwise false.
* @param error_msg the error message (if error).
*/
void click_config_generator_done(
IfConfigSetClick::ClickConfigGenerator* click_config_generator,
bool success,
const string& error_msg);
private:
virtual int config_begin(string& error_msg);
virtual int config_end(string& error_msg);
virtual int add_interface(const string& ifname,
uint32_t if_index,
string& error_msg);
virtual int add_vif(const string& ifname,
const string& vifname,
uint32_t if_index,
string& error_msg);
virtual int config_interface(const string& ifname,
uint32_t if_index,
uint32_t flags,
bool is_up,
bool is_deleted,
string& error_msg);
virtual int config_vif(const string& ifname,
const string& vifname,
uint32_t if_index,
uint32_t flags,
bool is_up,
bool is_deleted,
bool broadcast,
bool loopback,
bool point_to_point,
bool multicast,
string& error_msg);
virtual int set_interface_mac_address(const string& ifname,
uint32_t if_index,
const struct ether_addr& ether_addr,
string& error_msg);
virtual int set_interface_mtu(const string& ifname,
uint32_t if_index,
uint32_t mtu,
string& error_msg);
virtual int add_vif_address(const string& ifname,
const string& vifname,
uint32_t if_index,
bool is_broadcast,
bool is_p2p,
const IPvX& addr,
const IPvX& dst_or_bcast,
uint32_t prefix_len,
string& error_msg);
virtual int delete_vif_address(const string& ifname,
const string& vifname,
uint32_t if_index,
const IPvX& addr,
uint32_t prefix_len,
string& error_msg);
int execute_click_config_generator(string& error_msg);
void terminate_click_config_generator();
int write_generated_config(bool is_kernel_click,
const string& kernel_config,
bool is_user_click,
const string& user_config,
string& error_msg);
string regenerate_xorp_iftree_config() const;
string regenerate_xorp_fea_click_config() const;
/**
* Generate the next-hop to port mapping.
*
* @return the number of generated ports.
*/
int generate_nexthop_to_port_mapping();
ClickSocketReader _cs_reader;
IfTree _iftree;
class ClickConfigGenerator {
public:
ClickConfigGenerator(IfConfigSetClick& ifc_set_click,
const string& command_name);
~ClickConfigGenerator();
int execute(const string& xorp_config, string& error_msg);
const string& command_name() const { return _command_name; }
const string& command_stdout() const { return _command_stdout; }
private:
void stdout_cb(RunCommand* run_command, const string& output);
void stderr_cb(RunCommand* run_command, const string& output);
void done_cb(RunCommand* run_command, bool success,
const string& error_msg);
IfConfigSetClick& _ifc_set_click;
EventLoop& _eventloop;
string _command_name;
list<string> _command_argument_list;
RunCommand* _run_command;
string _command_stdout;
string _tmp_filename;
};
ClickConfigGenerator* _kernel_click_config_generator;
ClickConfigGenerator* _user_click_config_generator;
bool _has_kernel_click_config;
bool _has_user_click_config;
string _generated_kernel_click_config;
string _generated_user_click_config;
};
class IfConfigSetIPHelper : public IfConfigSet {
public:
IfConfigSetIPHelper(IfConfig& ifc);
virtual ~IfConfigSetIPHelper();
/**
* Start operation.
*
* @param error_msg the error message (if error).
* @return XORP_OK on success, otherwise XORP_ERROR.
*/
virtual int start(string& error_msg);
/**
* Stop operation.
*
* @param error_msg the error message (if error).
* @return XORP_OK on success, otherwise XORP_ERROR.
*/
virtual int stop(string& error_msg);
/**
* Determine if the interface's underlying provider implements discard
* semantics natively, or if they are emulated through other means.
*
* @param i the interface item to inspect.
* @return true if discard semantics are emulated.
*/
virtual bool is_discard_emulated(const IfTreeInterface& i) const;
private:
virtual int config_begin(string& error_msg);
virtual int config_end(string& error_msg);
virtual int add_interface(const string& ifname,
uint32_t if_index,
string& error_msg);
virtual int add_vif(const string& ifname,
const string& vifname,
uint32_t if_index,
string& error_msg);
virtual int config_interface(const string& ifname,
uint32_t if_index,
uint32_t flags,
bool is_up,
bool is_deleted,
string& error_msg);
virtual int config_vif(const string& ifname,
const string& vifname,
uint32_t if_index,
uint32_t flags,
bool is_up,
bool is_deleted,
bool broadcast,
bool loopback,
bool point_to_point,
bool multicast,
string& error_msg);
virtual int set_interface_mac_address(const string& ifname,
uint32_t if_index,
const struct ether_addr& ether_addr,
string& error_msg);
virtual int set_interface_mtu(const string& ifname,
uint32_t if_index,
uint32_t mtu,
string& error_msg);
virtual int add_vif_address(const string& ifname,
const string& vifname,
uint32_t if_index,
bool is_broadcast,
bool is_p2p,
const IPvX& addr,
const IPvX& dst_or_bcast,
uint32_t prefix_len,
string& error_msg);
virtual int delete_vif_address(const string& ifname,
const string& vifname,
uint32_t if_index,
const IPvX& addr,
uint32_t prefix_len,
string& error_msg);
virtual int add_vif_address4(const string& ifname,
const string& vifname,
uint32_t if_index,
bool is_broadcast,
bool is_p2p,
const IPvX& addr,
const IPvX& dst_or_bcast,
uint32_t prefix_len,
string& error_msg);
virtual int add_vif_address6(const string& ifname,
const string& vifname,
uint32_t if_index,
bool is_p2p,
const IPvX& addr,
const IPvX& dst,
uint32_t prefix_len,
string& error_msg);
#ifdef HOST_OS_WINDOWS
private:
map<pair<uint32_t, IPAddr>, ULONG> _nte_map;
#endif
};
#endif // __FEA_IFCONFIG_SET_HH__
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