/usr/src/openafs-1.6.1/include/afs/salvsync.h is in openafs-modules-dkms 1.6.1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* Copyright 2006-2010, Sine Nomine Associates and others.
* All Rights Reserved.
*
* This software has been released under the terms of the IBM Public
* License. For details, see the LICENSE file in the top-level source
* directory or online at http://www.openafs.org/dl/license10.html
*/
/*
* demand attach fs
* salvage server interface
*/
#ifndef _AFS_VOL_SALVSYNC_H
#define _AFS_VOL_SALVSYNC_H 1
#define SALSRV_EXIT_VOLGROUP_LINK 10
#ifdef AFS_DEMAND_ATTACH_FS
#include "daemon_com.h"
#include "voldefs.h"
#define SALVSYNC_PROTO_VERSION_V1 1
#define SALVSYNC_PROTO_VERSION_V2 2
#define SALVSYNC_PROTO_VERSION_V3 3
#define SALVSYNC_PROTO_VERSION SALVSYNC_PROTO_VERSION_V3
/**
* SALVSYNC protocol command codes.
*/
typedef enum {
SALVSYNC_OP_NOP = SYNC_COM_CODE_DECL(0), /**< just return stats */
SALVSYNC_OP_SALVAGE = SYNC_COM_CODE_DECL(1), /**< schedule a salvage */
SALVSYNC_OP_CANCEL = SYNC_COM_CODE_DECL(2), /**< cancel a salvage */
SALVSYNC_OP_RAISEPRIO = SYNC_COM_CODE_DECL(3), /**< raise salvage priority */
SALVSYNC_OP_QUERY = SYNC_COM_CODE_DECL(4), /**< query status of a salvage */
SALVSYNC_OP_CANCELALL = SYNC_COM_CODE_DECL(5), /**< cancel all pending salvages */
SALVSYNC_OP_LINK = SYNC_COM_CODE_DECL(6), /**< link a clone to its parent */
SALVSYNC_OP_MAX_ID /* must be at end of enum */
} SALVSYNC_op_code_t;
#define SALVSYNC_NOP SALVSYNC_OP_NOP
#define SALVSYNC_SALVAGE SALVSYNC_OP_SALVAGE
#define SALVSYNC_CANCEL SALVSYNC_OP_CANCEL
#define SALVSYNC_RAISEPRIO SALVSYNC_OP_RAISEPRIO
#define SALVSYNC_QUERY SALVSYNC_OP_QUERY
#define SALVSYNC_CANCELALL SALVSYNC_OP_CANCELALL
#define SALVSYNC_LINK SALVSYNC_OP_LINK
/**
* SALVSYNC protocol reason codes.
*/
typedef enum {
SALVSYNC_REASON_WHATEVER = SYNC_REASON_CODE_DECL(0), /**< XXX */
SALVSYNC_REASON_ERROR = SYNC_REASON_CODE_DECL(1), /**< volume is in error state */
SALVSYNC_REASON_OPERATOR = SYNC_REASON_CODE_DECL(2), /**< operator forced salvage */
SALVSYNC_REASON_SHUTDOWN = SYNC_REASON_CODE_DECL(3), /**< cancel due to shutdown */
SALVSYNC_REASON_NEEDED = SYNC_REASON_CODE_DECL(4), /**< needsSalvaged flag set */
SALVSYNC_REASON_MAX_ID /* must be at end of enum */
} SALVSYNC_reason_code_t;
#define SALVSYNC_WHATEVER SALVSYNC_REASON_WHATEVER
#define SALVSYNC_ERROR SALVSYNC_REASON_ERROR
#define SALVSYNC_OPERATOR SALVSYNC_REASON_OPERATOR
#define SALVSYNC_SHUTDOWN SALVSYNC_REASON_SHUTDOWN
#define SALVSYNC_NEEDED SALVSYNC_REASON_NEEDED
/* SALVSYNC response codes */
/* SALVSYNC flags */
#define SALVSYNC_FLAG_VOL_STATS_VALID SYNC_FLAG_CODE_DECL(0) /* volume stats in response are valid */
/**
* SALVSYNC command state.
*/
typedef enum {
SALVSYNC_STATE_UNKNOWN = 0, /**< unknown state */
SALVSYNC_STATE_QUEUED = 1, /**< salvage request is queued */
SALVSYNC_STATE_SALVAGING = 2, /**< salvage is happening now */
SALVSYNC_STATE_ERROR = 3, /**< salvage ended in an error */
SALVSYNC_STATE_DONE = 4 /**< last salvage ended successfully */
} SALVSYNC_command_state_t;
/**
* on-wire salvsync protocol payload.
*/
typedef struct SALVSYNC_command_hdr {
afs_uint32 hdr_version; /**< salvsync protocol header version */
afs_uint32 prio; /**< salvage priority */
afs_uint32 volume; /**< volume on which to operate */
afs_uint32 parent; /**< parent volume (for vol group linking command) */
char partName[16]; /**< partition name, e.g. /vicepa */
afs_uint32 reserved[6];
} SALVSYNC_command_hdr;
typedef struct SALVSYNC_response_hdr {
afs_int32 state;
afs_int32 prio;
afs_int32 sq_len;
afs_int32 pq_len;
afs_uint32 reserved[4];
} SALVSYNC_response_hdr;
typedef struct SALVSYNC_command {
SYNC_command_hdr * hdr;
SALVSYNC_command_hdr * sop;
SYNC_command * com;
} SALVSYNC_command;
typedef struct SALVSYNC_response {
SYNC_response_hdr * hdr;
SALVSYNC_response_hdr * sop;
SYNC_response * res;
} SALVSYNC_response;
typedef struct SALVSYNC_command_info {
SYNC_command_hdr com;
SALVSYNC_command_hdr sop;
} SALVSYNC_command_info;
typedef enum {
SALVSYNC_VOLGROUP_PARENT,
SALVSYNC_VOLGROUP_CLONE
} SalvageQueueNodeType_t;
struct SalvageQueueNode {
struct rx_queue q;
struct rx_queue hash_chain;
SalvageQueueNodeType_t type;
union {
struct SalvageQueueNode * parent;
struct SalvageQueueNode * children[VOLMAXTYPES];
} volgroup;
SALVSYNC_command_state_t state;
struct SALVSYNC_command_info command;
afs_int32 partition_id;
int pid;
};
#define SALVSYNC_IN_PORT 2041
#define SALVSYNC_UN_PATH "salvsync.sock"
#define SALVSYNC_ENDPOINT_DECL SYNC_ENDPOINT_DECL(SALVSYNC_IN_PORT, SALVSYNC_UN_PATH)
/* Prototypes from salvsync.c */
/* online salvager client interfaces */
extern int SALVSYNC_clientFinis(void);
extern int SALVSYNC_clientInit(void);
extern int SALVSYNC_clientReconnect(void);
extern afs_int32 SALVSYNC_askSalv(SYNC_command * com, SYNC_response * res);
extern afs_int32 SALVSYNC_SalvageVolume(VolumeId volume, char *partName, int com, int reason,
afs_uint32 prio, SYNC_response * res);
extern afs_int32 SALVSYNC_LinkVolume(VolumeId parent, VolumeId clone,
char * partName, SYNC_response * res_in);
/* salvage server interfaces */
extern void SALVSYNC_salvInit(void);
extern struct SalvageQueueNode * SALVSYNC_getWork(void);
extern void SALVSYNC_doneWorkByPid(int pid, int result);
#endif /* AFS_DEMAND_ATTACH_FS */
#endif /* _AFS_VOL_SALVSYNC_H */
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