libvirt/qemud/internal.h
2007-05-18 18:36:24 +00:00

372 lines
8.3 KiB
C

/*
* internal.h: daemon data structure definitions
*
* Copyright (C) 2006, 2007 Red Hat, Inc.
* Copyright (C) 2006 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 QEMUD_INTERNAL_H__
#define QEMUD_INTERNAL_H__
#include <sys/socket.h>
#include <netinet/in.h>
#include "protocol.h"
#include "bridge.h"
#include "iptables.h"
#ifdef __GNUC__
#ifdef HAVE_ANSIDECL_H
#include <ansidecl.h>
#endif
#ifndef ATTRIBUTE_UNUSED
#define ATTRIBUTE_UNUSED __attribute__((__unused__))
#endif
#ifndef ATTRIBUTE_FORMAT
#define ATTRIBUTE_FORMAT(args...) __attribute__((__format__ (args)))
#endif
#else
#define ATTRIBUTE_UNUSED
#define ATTRIBUTE_FORMAT(...)
#endif
#define UUID_LEN 16
typedef enum {
QEMUD_ERR,
QEMUD_WARN,
QEMUD_INFO,
#ifdef ENABLE_DEBUG
QEMUD_DEBUG
#endif
} qemudLogPriority;
typedef enum {
QEMUD_DIR_CONFIG = 0,
QEMUD_DIR_AUTOSTART,
QEMUD_DIR_NETWORK_CONFIG,
QEMUD_DIR_NETWORK_AUTOSTART,
QEMUD_N_CONFIG_DIRS
} qemudConfigDirType;
/* Different types of QEMU acceleration possible */
enum qemud_vm_virt_type {
QEMUD_VIRT_QEMU,
QEMUD_VIRT_KQEMU,
QEMUD_VIRT_KVM,
};
/* Two types of disk backends */
enum qemud_vm_disk_type {
QEMUD_DISK_BLOCK,
QEMUD_DISK_FILE
};
/* Three types of disk frontend */
enum qemud_vm_disk_device {
QEMUD_DISK_DISK,
QEMUD_DISK_CDROM,
QEMUD_DISK_FLOPPY,
};
/* Stores the virtual disk configuration */
struct qemud_vm_disk_def {
int type;
int device;
char src[PATH_MAX];
char dst[NAME_MAX];
int readonly;
struct qemud_vm_disk_def *next;
};
#define QEMUD_MAC_ADDRESS_LEN 6
#define QEMUD_OS_TYPE_MAX_LEN 10
#define QEMUD_OS_ARCH_MAX_LEN 10
#define QEMUD_OS_MACHINE_MAX_LEN 10
/* 5 different types of networking config */
enum qemud_vm_net_type {
QEMUD_NET_USER,
QEMUD_NET_ETHERNET,
QEMUD_NET_SERVER,
QEMUD_NET_CLIENT,
QEMUD_NET_MCAST,
QEMUD_NET_NETWORK,
QEMUD_NET_BRIDGE,
};
/* Stores the virtual network interface configuration */
struct qemud_vm_net_def {
int type;
unsigned char mac[QEMUD_MAC_ADDRESS_LEN];
union {
struct {
char ifname[BR_IFNAME_MAXLEN];
char script[PATH_MAX];
} ethernet;
struct {
char address[BR_INET_ADDR_MAXLEN];
int port;
} socket; /* any of NET_CLIENT or NET_SERVER or NET_MCAST */
struct {
char name[QEMUD_MAX_NAME_LEN];
char ifname[BR_IFNAME_MAXLEN];
} network;
struct {
char brname[BR_IFNAME_MAXLEN];
char ifname[BR_IFNAME_MAXLEN];
} bridge;
} dst;
struct qemud_vm_net_def *next;
};
#define QEMUD_MAX_BOOT_DEVS 4
/* 3 possible boot devices */
enum qemud_vm_boot_order {
QEMUD_BOOT_FLOPPY,
QEMUD_BOOT_CDROM,
QEMUD_BOOT_DISK,
QEMUD_BOOT_NET,
};
/* 3 possible graphics console modes */
enum qemud_vm_grapics_type {
QEMUD_GRAPHICS_NONE,
QEMUD_GRAPHICS_SDL,
QEMUD_GRAPHICS_VNC,
};
/* Internal flags to keep track of qemu command line capabilities */
enum qemud_cmd_flags {
QEMUD_CMD_FLAG_KQEMU = 1,
QEMUD_CMD_FLAG_VNC_COLON = 2,
QEMUD_CMD_FLAG_NO_REBOOT = 4,
};
enum qemud_vm_features {
QEMUD_FEATURE_ACPI = 1,
};
/* Operating system configuration data & machine / arch */
struct qemud_vm_os_def {
char type[QEMUD_OS_TYPE_MAX_LEN];
char arch[QEMUD_OS_ARCH_MAX_LEN];
char machine[QEMUD_OS_MACHINE_MAX_LEN];
int nBootDevs;
int bootDevs[QEMUD_MAX_BOOT_DEVS];
char kernel[PATH_MAX];
char initrd[PATH_MAX];
char cmdline[PATH_MAX];
char binary[PATH_MAX];
};
/* Guest VM main configuration */
struct qemud_vm_def {
int virtType;
unsigned char uuid[QEMUD_UUID_RAW_LEN];
char name[QEMUD_MAX_NAME_LEN];
int memory;
int maxmem;
int vcpus;
int noReboot;
struct qemud_vm_os_def os;
int features;
int graphicsType;
int vncPort;
int vncActivePort;
int ndisks;
struct qemud_vm_disk_def *disks;
int nnets;
struct qemud_vm_net_def *nets;
};
/* Guest VM runtime state */
struct qemud_vm {
int stdout;
int stderr;
int monitor;
int logfile;
int pid;
int id;
int state;
int *tapfds;
int ntapfds;
char configFile[PATH_MAX];
char autostartLink[PATH_MAX];
struct qemud_vm_def *def; /* The current definition */
struct qemud_vm_def *newDef; /* New definition to activate at shutdown */
unsigned int autostart : 1;
struct qemud_vm *next;
};
/* Store start and end addresses of a dhcp range */
struct qemud_dhcp_range_def {
char start[BR_INET_ADDR_MAXLEN];
char end[BR_INET_ADDR_MAXLEN];
struct qemud_dhcp_range_def *next;
};
/* Virtual Network main configuration */
struct qemud_network_def {
unsigned char uuid[QEMUD_UUID_RAW_LEN];
char name[QEMUD_MAX_NAME_LEN];
char bridge[BR_IFNAME_MAXLEN];
int disableSTP;
int forwardDelay;
int forward;
char forwardDev[BR_IFNAME_MAXLEN];
char ipAddress[BR_INET_ADDR_MAXLEN];
char netmask[BR_INET_ADDR_MAXLEN];
char network[BR_INET_ADDR_MAXLEN+BR_INET_ADDR_MAXLEN+1];
int nranges;
struct qemud_dhcp_range_def *ranges;
};
/* Virtual Network runtime state */
struct qemud_network {
char configFile[PATH_MAX];
char autostartLink[PATH_MAX];
struct qemud_network_def *def; /* The current definition */
struct qemud_network_def *newDef; /* New definition to activate at shutdown */
char bridge[BR_IFNAME_MAXLEN];
int dnsmasqPid;
unsigned int active : 1;
unsigned int autostart : 1;
struct qemud_network *next;
};
/* Stores the per-client connection state */
struct qemud_client {
int fd;
int readonly;
struct qemud_packet incoming;
unsigned int incomingReceived;
struct qemud_packet outgoing;
unsigned int outgoingSent;
int tx;
struct qemud_client *next;
};
struct qemud_socket {
int fd;
int readonly;
struct qemud_socket *next;
};
/* Main server state */
struct qemud_server {
int nsockets;
struct qemud_socket *sockets;
int qemuVersion;
int qemuCmdFlags; /* values from enum qemud_cmd_flags */
int nclients;
struct qemud_client *clients;
int sigread;
int nvmfds;
int nactivevms;
int ninactivevms;
struct qemud_vm *vms;
int nextvmid;
int nactivenetworks;
int ninactivenetworks;
struct qemud_network *networks;
brControl *brctl;
iptablesContext *iptables;
char configDirs[QEMUD_N_CONFIG_DIRS][PATH_MAX];
char *configDir;
char *autostartDir;
char *networkConfigDir;
char *networkAutostartDir;
char logDir[PATH_MAX];
char errorMessage[QEMUD_MAX_ERROR_LEN];
int errorCode;
unsigned int shutdown : 1;
};
int qemudStartVMDaemon(struct qemud_server *server,
struct qemud_vm *vm);
int qemudShutdownVMDaemon(struct qemud_server *server,
struct qemud_vm *vm);
int qemudStartNetworkDaemon(struct qemud_server *server,
struct qemud_network *network);
int qemudShutdownNetworkDaemon(struct qemud_server *server,
struct qemud_network *network);
void qemudLog(int priority, const char *fmt, ...)
ATTRIBUTE_FORMAT(printf,2,3);
#ifdef ENABLE_DEBUG
#define qemudDebug(...) qemudLog(QEMUD_DEBUG, __VA_ARGS__)
#else
#define qemudDebug(fmt, ...) do {} while(0)
#endif
static inline int
qemudIsActiveVM(struct qemud_vm *vm)
{
return vm->id != -1;
}
static inline int
qemudIsActiveNetwork(struct qemud_network *network)
{
return network->active;
}
#endif
/*
* Local variables:
* indent-tabs-mode: nil
* c-indent-level: 4
* c-basic-offset: 4
* tab-width: 4
* End:
*/