[mirror_lxc.git] / src / lxc / confile_utils.h

/* liblxcapi
 *
 * Copyright © 2017 Christian Brauner <christian.brauner@ubuntu.com>.
 * Copyright © 2017 Canonical Ltd.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2, as
 * published by the Free Software Foundation.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

#ifndef __LXC_CONFILE_UTILS_H
#define __LXC_CONFILE_UTILS_H

#include <stdbool.h>

#include "conf.h"
#include "confile_utils.h"

#define strprint(str, inlen, ...)                                       \
	do {                                                            \
		if (str)                                                \
			len = snprintf(str, inlen, ##__VA_ARGS__);      \
		else                                                    \
			len = snprintf((char *){""}, 0, ##__VA_ARGS__); \
		if (len < 0) {                                          \
			SYSERROR("failed to create string");            \
			return -1;                                      \
		};                                                      \
		fulllen += len;                                         \
		if (inlen > 0) {                                        \
			if (str)                                        \
				str += len;                             \
			inlen -= len;                                   \
			if (inlen < 0)                                  \
				inlen = 0;                              \
		}                                                       \
	} while (0);

extern int parse_idmaps(const char *idmap, char *type, unsigned long *nsid,
			unsigned long *hostid, unsigned long *range);

extern bool lxc_config_value_empty(const char *value);
extern struct lxc_netdev *lxc_network_add(struct lxc_list *networks, int idx,
					  bool tail);
extern struct lxc_netdev *
lxc_get_netdev_by_idx(struct lxc_conf *conf, unsigned int idx, bool allocate);
extern void lxc_log_configured_netdevs(const struct lxc_conf *conf);
extern bool lxc_remove_nic_by_idx(struct lxc_conf *conf, unsigned int idx);
extern void lxc_free_networks(struct lxc_list *networks);
extern int lxc_macvlan_mode_to_flag(int *mode, const char *value);
extern char *lxc_macvlan_flag_to_mode(int mode);

extern int set_config_string_item(char **conf_item, const char *value);
extern int set_config_string_item_max(char **conf_item, const char *value,
				      size_t max);
extern int set_config_path_item(char **conf_item, const char *value);
extern int config_ip_prefix(struct in_addr *addr);
extern int network_ifname(char *valuep, const char *value, size_t size);
extern void rand_complete_hwaddr(char *hwaddr);
extern bool lxc_config_net_hwaddr(const char *line);
extern void update_hwaddr(const char *line);
extern bool new_hwaddr(char *hwaddr);
extern int lxc_get_conf_str(char *retv, int inlen, const char *value);
extern int lxc_get_conf_bool(struct lxc_conf *c, char *retv, int inlen, bool v);
extern int lxc_get_conf_int(struct lxc_conf *c, char *retv, int inlen, int v);
extern int lxc_get_conf_size_t(struct lxc_conf *c, char *retv, int inlen, size_t v);
extern int lxc_get_conf_uint64(struct lxc_conf *c, char *retv, int inlen, uint64_t v);
extern bool parse_limit_value(const char **value, rlim_t *res);
extern int lxc_inherit_namespace(const char *lxcname_or_pid,
				 const char *lxcpath, const char *namespace);
extern int sig_parse(const char *signame);

#endif /* __LXC_CONFILE_UTILS_H */
Commit	Line	Data
0b843d35 CB	1	/* liblxcapi
	2	*
	3	* Copyright © 2017 Christian Brauner <christian.brauner@ubuntu.com>.
	4	* Copyright © 2017 Canonical Ltd.
	5	*
	6	* This program is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License version 2, as
	8	* published by the Free Software Foundation.
	9	*
	10	* This program is distributed in the hope that it will be useful,
	11	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	12	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	13	* GNU General Public License for more details.
	14	*
	15	* You should have received a copy of the GNU General Public License along
	16	* with this program; if not, write to the Free Software Foundation, Inc.,
	17	* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
	18	*/
	19
	20	#ifndef __LXC_CONFILE_UTILS_H
	21	#define __LXC_CONFILE_UTILS_H
	22
663e9916 CB	23	#include <stdbool.h>
663e9916 CB	24
ce2f5ae8	25	#include "conf.h"
f9373e40	26	#include "confile_utils.h"
ce2f5ae8	27
9496659c CB	28	#define strprint(str, inlen, ...) \
	29	do { \
	30	if (str) \
	31	len = snprintf(str, inlen, ##__VA_ARGS__); \
	32	else \
	33	len = snprintf((char *){""}, 0, ##__VA_ARGS__); \
	34	if (len < 0) { \
	35	SYSERROR("failed to create string"); \
	36	return -1; \
	37	}; \
	38	fulllen += len; \
	39	if (inlen > 0) { \
	40	if (str) \
	41	str += len; \
	42	inlen -= len; \
	43	if (inlen < 0) \
	44	inlen = 0; \
	45	} \
f9373e40 CB	46	} while (0);
f9373e40 CB	47
0b843d35 CB	48	extern int parse_idmaps(const char idmap, char type, unsigned long *nsid,
	49	unsigned long hostid, unsigned long range);
	50
663e9916	51	extern bool lxc_config_value_empty(const char *value);
c302b476 CB	52	extern struct lxc_netdev lxc_network_add(struct lxc_list networks, int idx,
c302b476 CB	53	bool tail);
0070b1c4 CB	54	extern struct lxc_netdev *
0070b1c4 CB	55	lxc_get_netdev_by_idx(struct lxc_conf *conf, unsigned int idx, bool allocate);
1ed6ba91	56	extern void lxc_log_configured_netdevs(const struct lxc_conf *conf);
519df1c1	57	extern bool lxc_remove_nic_by_idx(struct lxc_conf *conf, unsigned int idx);
c302b476	58	extern void lxc_free_networks(struct lxc_list *networks);
9b0df30f CB	59	extern int lxc_macvlan_mode_to_flag(int mode, const char value);
9b0df30f CB	60	extern char *lxc_macvlan_flag_to_mode(int mode);
663e9916	61
f9373e40 CB	62	extern int set_config_string_item(char *conf_item, const char value);
	63	extern int set_config_string_item_max(char *conf_item, const char value,
	64	size_t max);
	65	extern int set_config_path_item(char *conf_item, const char value);
	66	extern int config_ip_prefix(struct in_addr *addr);
18cd4b54	67	extern int network_ifname(char valuep, const char value, size_t size);
29c98ddd	68	extern void rand_complete_hwaddr(char *hwaddr);
ce4be612	69	extern bool lxc_config_net_hwaddr(const char *line);
f9373e40 CB	70	extern void update_hwaddr(const char *line);
f9373e40 CB	71	extern bool new_hwaddr(char *hwaddr);
953fe44f	72	extern int lxc_get_conf_str(char retv, int inlen, const char value);
6e54330c	73	extern int lxc_get_conf_bool(struct lxc_conf c, char retv, int inlen, bool v);
953fe44f	74	extern int lxc_get_conf_int(struct lxc_conf c, char retv, int inlen, int v);
885766f5	75	extern int lxc_get_conf_size_t(struct lxc_conf c, char retv, int inlen, size_t v);
2ea479c9	76	extern int lxc_get_conf_uint64(struct lxc_conf c, char retv, int inlen, uint64_t v);
71460831	77	extern bool parse_limit_value(const char *value, rlim_t res);
28d9e29e CB	78	extern int lxc_inherit_namespace(const char *lxcname_or_pid,
28d9e29e CB	79	const char lxcpath, const char namespace);
f6e32eb0	80	extern int sig_parse(const char *signame);
2ea479c9	81
0b843d35	82	#endif /* __LXC_CONFILE_UTILS_H */