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/*
* lxc: linux Container library
*
* (C) Copyright IBM Corp. 2007, 2008
*
* Authors:
* Daniel Lezcano <dlezcano at fr.ibm.com>
*
* 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
*/
#ifndef _conf_h
#define _conf_h
#include <netinet/in.h>
#include <sys/param.h>
enum {
EMPTY,
VETH,
MACVLAN,
PHYS,
MAXCONFTYPE,
};
/*
* Defines the structure to configure an ipv4 address
* @address : ipv4 address
* @broadcast : ipv4 broadcast address
* @mask : network mask
*/
struct lxc_inetdev {
struct in_addr addr;
struct in_addr bcast;
int prefix;
};
struct lxc_route {
struct in_addr addr;
};
/*
* Defines the structure to configure an ipv6 address
* @flags : set the address up
* @address : ipv6 address
* @broadcast : ipv6 broadcast address
* @mask : network mask
*/
struct lxc_inet6dev {
struct in6_addr addr;
struct in6_addr bcast;
struct in6_addr acast;
int prefix;
};
struct lxc_route6 {
struct in6_addr addr;
};
/*
* Defines a structure to configure a network device
* @ifname : network device name
* @flags : flag of the network device (IFF_UP, ... )
* @ipv4 : a list of ipv4 addresses to be set on the network device
* @ipv6 : a list of ipv6 addresses to be set on the network device
*/
struct lxc_netdev {
int type;
int flags;
int ifindex;
char *ifname;
char *newname;
char *hwaddr;
char *mtu;
struct lxc_list ipv4;
struct lxc_list ipv6;
};
/*
* Defines a generic struct to configure the control group.
* It is up to the programmer to specify the right subsystem.
* @subsystem : the targetted subsystem
* @value : the value to set
*/
struct lxc_cgroup {
char *subsystem;
char *value;
};
/*
* Defines a structure containing a pty information for
* virtualizing a tty
* @name : the path name of the slave pty side
* @master : the file descriptor of the master
* @slave : the file descriptor of the slave
*/
struct lxc_pty_info {
char name[MAXPATHLEN];
int master;
int slave;
int busy;
};
/*
* Defines the number of tty configured and contains the
* instanciated ptys
* @nbtty = number of configured ttys
*/
struct lxc_tty_info {
int nbtty;
struct lxc_pty_info *pty_info;
};
/*
* Defines the global container configuration
* @rootfs : the root directory to run the container
* @mount : the list of mount points
* @network : the network configuration
* @utsname : the container utsname
*/
struct lxc_conf {
char *rootfs;
char *fstab;
int tty;
int pts;
struct utsname *utsname;
struct lxc_list cgroup;
struct lxc_list network;
struct lxc_tty_info tty_info;
char console[MAXPATHLEN];
};
/*
* Initialize the lxc configuration structure
*/
extern int lxc_conf_init(struct lxc_conf *conf);
extern int lxc_create_network(struct lxc_list *networks);
extern int lxc_assign_network(struct lxc_list *networks, pid_t pid);
extern int lxc_create_tty(const char *name, struct lxc_conf *conf);
extern void lxc_delete_tty(struct lxc_tty_info *tty_info);
/*
* Configure the container from inside
*/
struct lxc_handler;
extern int lxc_setup(const char *name, struct lxc_conf *lxc_conf);
extern int conf_has(const char *name, const char *info);
#define conf_has_fstab(__name) conf_has(__name, "fstab")
#define conf_has_rootfs(__name) conf_has(__name, "rootfs")
#define conf_has_utsname(__name) conf_has(__name, "utsname")
#define conf_has_network(__name) conf_has(__name, "network")
#define conf_has_console(__name) conf_has(__name, "console")
#define conf_has_cgroup(__name) conf_has(__name, "cgroup")
#define conf_has_tty(__name) conf_has(__name, "tty")
#define conf_has_pts(__name) conf_has(__name, "pts")
#endif
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