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/*
* Copyright 2012 Red Hat, Inc.
*
* This copyrighted material is made available to anyone wishing to use,
* modify, copy, or redistribute it subject to the terms and conditions
* of the GNU General Public License v2 or (at your option) any later version.
*/
#ifndef _FENCE_CONFIG_H_
#define _FENCE_CONFIG_H_
#define FENCE_CONFIG_DEVS_MAX 4 /* max devs per node */
#define FENCE_CONFIG_NAME_MAX 256 /* including terminating \0 */
#define FENCE_CONFIG_ARGS_MAX 4096 /* including terminating \0 */
struct fence_device {
char name[FENCE_CONFIG_NAME_MAX];
char agent[FENCE_CONFIG_NAME_MAX];
char args[FENCE_CONFIG_ARGS_MAX];
int unfence;
};
struct fence_connect {
char name[FENCE_CONFIG_NAME_MAX];
char args[FENCE_CONFIG_ARGS_MAX];
};
/* describes fence config for one node */
struct fence_config {
struct fence_device *dev[FENCE_CONFIG_DEVS_MAX];
struct fence_connect *con[FENCE_CONFIG_DEVS_MAX];
unsigned int nodeid;
int pos;
};
/*
* Returns -ENOENT if path does not exist or there is no
* config for nodeid in the file.
*
* Returns -EXYZ if there's a problem with the config.
*
* Returns 0 if a config was found with no problems.
*/
int fence_config_init(struct fence_config *fc, unsigned int nodeid, char *path);
void fence_config_free(struct fence_config *fc);
/*
* Iterate through fence_config, sets pos to indicate next to try.
* Based on two rules:
*
* - next_parallel is the next device with the same base name
* as the current device (base name is name preceding ":")
*
* - next_priority is the next device without the same base name
* as the current device
*/
int fence_config_next_parallel(struct fence_config *fc);
int fence_config_next_priority(struct fence_config *fc);
/*
* Combine dev->args and con->args, replacing ' ' with '\n'.
* Also add "node=nodeid" if "node=" does not already exist.
*/
int fence_config_agent_args(struct fence_config *fc, char *extra, char *args);
#endif
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