network_conf.h

/*
 * network_conf.h: network XML handling
 *
 * Copyright (C) 2006-2008 Red Hat, Inc.
 * Copyright (C) 2006-2008 Daniel P. Berrange
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
 *
 * Author: Daniel P. Berrange <berrange@redhat.com>
 */

#ifndef __NETWORK_CONF_H__
#define __NETWORK_CONF_H__

#include <libxml/parser.h>
#include <libxml/tree.h>
#include <libxml/xpath.h>

#include "internal.h"
#include "threads.h"

/* 2 possible types of forwarding */
enum virNetworkForwardType {
    VIR_NETWORK_FORWARD_NONE   = 0,
    VIR_NETWORK_FORWARD_NAT,
    VIR_NETWORK_FORWARD_ROUTE,

    VIR_NETWORK_FORWARD_LAST,
};

typedef struct _virNetworkDHCPRangeDef virNetworkDHCPRangeDef;
typedef virNetworkDHCPRangeDef *virNetworkDHCPRangeDefPtr;
struct _virNetworkDHCPRangeDef {
    char *start;
    char *end;
};

typedef struct _virNetworkDHCPHostDef virNetworkDHCPHostDef;
typedef virNetworkDHCPHostDef *virNetworkDHCPHostDefPtr;
struct _virNetworkDHCPHostDef {
    char *mac;
    char *name;
    char *ip;
};

typedef struct _virNetworkDef virNetworkDef;
typedef virNetworkDef *virNetworkDefPtr;
struct _virNetworkDef {
    unsigned char uuid[VIR_UUID_BUFLEN];
    char *name;

    char *bridge;       /* Name of bridge device */
    char *domain;
    unsigned long delay;   /* Bridge forward delay (ms) */
    int stp : 1; /* Spanning tree protocol */

    int forwardType;    /* One of virNetworkForwardType constants */
    char *forwardDev;   /* Destination device for forwarding */

    char *ipAddress;    /* Bridge IP address */
    char *netmask;
    char *network;

    unsigned int nranges;        /* Zero or more dhcp ranges */
    virNetworkDHCPRangeDefPtr ranges;

    unsigned int nhosts;         /* Zero or more dhcp hosts */
    virNetworkDHCPHostDefPtr hosts;

    char *tftproot;
    char *bootfile;
    char *bootserver;
};

typedef struct _virNetworkObj virNetworkObj;
typedef virNetworkObj *virNetworkObjPtr;
struct _virNetworkObj {
    virMutex lock;

    pid_t dnsmasqPid;
    unsigned int active : 1;
    unsigned int autostart : 1;
    unsigned int persistent : 1;

    virNetworkDefPtr def; /* The current definition */
    virNetworkDefPtr newDef; /* New definition to activate at shutdown */
};

typedef struct _virNetworkObjList virNetworkObjList;
typedef virNetworkObjList *virNetworkObjListPtr;
struct _virNetworkObjList {
    unsigned int count;
    virNetworkObjPtr *objs;
};

static inline int
virNetworkIsActive(const virNetworkObjPtr net)
{
    return net->active;
}

#define networkReportError(conn, dom, net, code, fmt...)                \
    virReportErrorHelper(conn, VIR_FROM_QEMU, code, __FILE__,         \
                           __FUNCTION__, __LINE__, fmt)


virNetworkObjPtr virNetworkFindByUUID(const virNetworkObjListPtr nets,
                                      const unsigned char *uuid);
virNetworkObjPtr virNetworkFindByName(const virNetworkObjListPtr nets,
                                      const char *name);


void virNetworkDefFree(virNetworkDefPtr def);
void virNetworkObjFree(virNetworkObjPtr net);
void virNetworkObjListFree(virNetworkObjListPtr vms);

virNetworkObjPtr virNetworkAssignDef(virConnectPtr conn,
                                     virNetworkObjListPtr nets,
                                     const virNetworkDefPtr def);
void virNetworkRemoveInactive(virNetworkObjListPtr nets,
                              const virNetworkObjPtr net);

virNetworkDefPtr virNetworkDefParseString(virConnectPtr conn,
                                          const char *xmlStr);
virNetworkDefPtr virNetworkDefParseFile(virConnectPtr conn,
                                        const char *filename);
virNetworkDefPtr virNetworkDefParseNode(virConnectPtr conn,
                                        xmlDocPtr xml,
                                        xmlNodePtr root);

char *virNetworkDefFormat(virConnectPtr conn,
                          const virNetworkDefPtr def);


int virNetworkSaveXML(virConnectPtr conn,
                      const char *configDir,
                      virNetworkDefPtr def,
                      const char *xml);

int virNetworkSaveConfig(virConnectPtr conn,
                         const char *configDir,
                         virNetworkDefPtr def);

virNetworkObjPtr virNetworkLoadConfig(virConnectPtr conn,
                                      virNetworkObjListPtr nets,
                                      const char *configDir,
                                      const char *autostartDir,
                                      const char *file);

int virNetworkLoadAllConfigs(virConnectPtr conn,
                             virNetworkObjListPtr nets,
                             const char *configDir,
                             const char *autostartDir);

int virNetworkDeleteConfig(virConnectPtr conn,
                           const char *configDir,
                           const char *autostartDir,
                           virNetworkObjPtr net);

char *virNetworkConfigFile(virConnectPtr conn,
                           const char *dir,
                           const char *name);

int virNetworkBridgeInUse(const virNetworkObjListPtr nets,
                          const char *bridge,
                          const char *skipname);

char *virNetworkAllocateBridge(virConnectPtr conn,
                               const virNetworkObjListPtr nets,
                               const char *template);

int virNetworkSetBridgeName(virConnectPtr conn,
                            const virNetworkObjListPtr nets,
                            virNetworkDefPtr def,
                            int check_collision);

void virNetworkObjLock(virNetworkObjPtr obj);
void virNetworkObjUnlock(virNetworkObjPtr obj);

#endif /* __NETWORK_CONF_H__ */