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/*
* lxc: linux Container library
*
* (C) Copyright IBM Corp. 2007, 2009
*
* Authors:
* Daniel Lezcano <daniel.lezcano at free.fr>
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef __LXC_COMMANDS_H
#define __LXC_COMMANDS_H
#include "state.h"
#define LXC_CMD_DATA_MAX (MAXPATHLEN*2)
/* https://developer.gnome.org/glib/2.28/glib-Type-Conversion-Macros.html */
#define INT_TO_PTR(n) ((void *) (long) (n))
#define PTR_TO_INT(p) ((int) (long) (p))
typedef enum {
LXC_CMD_CONSOLE,
LXC_CMD_CONSOLE_WINCH,
LXC_CMD_STOP,
LXC_CMD_GET_STATE,
LXC_CMD_GET_INIT_PID,
LXC_CMD_GET_CLONE_FLAGS,
LXC_CMD_GET_CGROUP,
LXC_CMD_GET_CONFIG_ITEM,
LXC_CMD_GET_NAME,
LXC_CMD_GET_LXCPATH,
LXC_CMD_MAX,
} lxc_cmd_t;
struct lxc_cmd_req {
lxc_cmd_t cmd;
int datalen;
const void *data;
};
struct lxc_cmd_rsp {
int ret; /* 0 on success, -errno on failure */
int datalen;
void *data;
};
struct lxc_cmd_rr {
struct lxc_cmd_req req;
struct lxc_cmd_rsp rsp;
};
struct lxc_cmd_console_rsp_data {
int masterfd;
int ttynum;
};
extern int lxc_cmd_console_winch(const char *name, const char *lxcpath);
extern int lxc_cmd_console(const char *name, int *ttynum, int *fd,
const char *lxcpath);
/*
* Get the 'real' cgroup path (as seen in /proc/self/cgroup) for a container
* for a particular subsystem
*/
extern char *lxc_cmd_get_cgroup_path(const char *name, const char *lxcpath,
const char *subsystem);
extern int lxc_cmd_get_clone_flags(const char *name, const char *lxcpath);
extern char *lxc_cmd_get_config_item(const char *name, const char *item, const char *lxcpath);
extern char *lxc_cmd_get_name(const char *hashed_sock);
extern char *lxc_cmd_get_lxcpath(const char *hashed_sock);
extern pid_t lxc_cmd_get_init_pid(const char *name, const char *lxcpath);
extern lxc_state_t lxc_cmd_get_state(const char *name, const char *lxcpath);
extern int lxc_cmd_stop(const char *name, const char *lxcpath);
struct lxc_epoll_descr;
struct lxc_handler;
extern int lxc_cmd_init(const char *name, struct lxc_handler *handler,
const char *lxcpath);
extern int lxc_cmd_mainloop_add(const char *name, struct lxc_epoll_descr *descr,
struct lxc_handler *handler);
extern int lxc_try_cmd(const char *name, const char *lxcpath);
#endif /* __commands_h */
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