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/*
Copyright (c) 2010-2013 Red Hat, Inc. <http://www.redhat.com>
This file is part of GlusterFS.
This file is licensed to you under your choice of the GNU Lesser
General Public License, version 3 or any later version (LGPLv3 or
later), or the GNU General Public License, version 2 (GPLv2), in all
cases as published by the Free Software Foundation.
*/
#ifndef _SERVER_H
#define _SERVER_H
#include <pthread.h>
#include <glusterfs/fd.h>
#include "rpcsvc.h"
#include <glusterfs/fd.h>
#include "protocol-common.h"
#include "server-mem-types.h"
#include "glusterfs3.h"
#include <glusterfs/timer.h>
#include <glusterfs/client_t.h>
#include <glusterfs/gidcache.h>
#include <glusterfs/defaults.h>
#include "authenticate.h"
#define DEFAULT_BLOCK_SIZE 4194304 /* 4MB */
#define DEFAULT_VOLUME_FILE_PATH CONFDIR "/glusterfs.vol"
#define GF_MAX_SOCKET_WINDOW_SIZE (1 * GF_UNIT_MB)
#define GF_MIN_SOCKET_WINDOW_SIZE (0)
#define CPD_REQ_FIELD(v, f) ((v)->compound_req_u.compound_##f##_req)
#define CPD_RSP_FIELD(v, f) ((v)->compound_rsp_u.compound_##f##_rsp)
#define SERVER_COMMON_RSP_CLEANUP(rsp, fop, i) \
do { \
compound_rsp *this_rsp = NULL; \
this_rsp = &rsp->compound_rsp_array.compound_rsp_array_val[i]; \
gf_common_rsp *_this_rsp = &CPD_RSP_FIELD(this_rsp, fop); \
\
GF_FREE(_this_rsp->xdata.xdata_val); \
} while (0)
#define SERVER_FOP_RSP_CLEANUP(rsp, fop, i) \
do { \
compound_rsp *this_rsp = NULL; \
this_rsp = &rsp->compound_rsp_array.compound_rsp_array_val[i]; \
gfs3_##fop##_rsp *_this_rsp = &CPD_RSP_FIELD(this_rsp, fop); \
\
GF_FREE(_this_rsp->xdata.xdata_val); \
} while (0)
#define SERVER_COMPOUND_FOP_CLEANUP(curr_req, fop) \
do { \
gfs3_##fop##_req *_req = &CPD_REQ_FIELD(curr_req, fop); \
\
free(_req->xdata.xdata_val); \
} while (0)
#define CPD4_REQ_FIELD(v, f) ((v)->compound_req_v2_u.compound_##f##_req)
#define CPD4_RSP_FIELD(v, f) ((v)->compound_rsp_v2_u.compound_##f##_rsp)
#define SERVER4_COMMON_RSP_CLEANUP(rsp, fop, i) \
do { \
compound_rsp_v2 *this_rsp = NULL; \
this_rsp = &rsp->compound_rsp_array.compound_rsp_array_val[i]; \
gfx_common_rsp *_this_rsp = &CPD4_RSP_FIELD(this_rsp, fop); \
\
GF_FREE(_this_rsp->xdata.pairs.pairs_val); \
} while (0)
#define SERVER4_FOP_RSP_CLEANUP(rsp, fop, i, rsp_type) \
do { \
compound_rsp_v2 *this_rsp = NULL; \
this_rsp = &rsp->compound_rsp_array.compound_rsp_array_val[i]; \
gfx_##rsp_type##_rsp *_this_rsp = &CPD4_RSP_FIELD(this_rsp, fop); \
\
GF_FREE(_this_rsp->xdata.pairs.pairs_val); \
} while (0)
typedef enum {
INTERNAL_LOCKS = 1,
POSIX_LOCKS = 2,
} server_lock_flags_t;
typedef struct _server_state server_state_t;
int
server_null(rpcsvc_request_t *req);
struct _volfile_ctx {
struct _volfile_ctx *next;
char *key;
uint32_t checksum;
};
struct _child_status {
struct list_head status_list;
char *name;
gf_boolean_t child_up;
};
struct server_conf {
rpcsvc_t *rpc;
struct rpcsvc_config rpc_conf;
int inode_lru_limit;
gf_boolean_t verify_volfile;
gf_boolean_t trace;
char *conf_dir;
struct _volfile_ctx *volfile;
dict_t *auth_modules;
pthread_mutex_t mutex;
struct list_head xprt_list;
pthread_t barrier_th;
gf_boolean_t server_manage_gids; /* resolve gids on brick */
gid_cache_t gid_cache;
int32_t gid_cache_timeout;
int event_threads; /* # of event threads
* configured */
gf_boolean_t parent_up;
gf_boolean_t dync_auth; /* if set authenticate dynamically,
* in case if volume set options
* (say *.allow | *.reject) are
* tweeked */
struct _child_status *child_status;
gf_lock_t itable_lock;
gf_boolean_t strict_auth_enabled;
};
typedef struct server_conf server_conf_t;
typedef enum {
RESOLVE_MUST = 1,
RESOLVE_NOT,
RESOLVE_MAY,
RESOLVE_DONTCARE,
RESOLVE_EXACT
} server_resolve_type_t;
struct resolve_comp {
char *basename;
inode_t *inode;
};
typedef struct {
server_resolve_type_t type;
int64_t fd_no;
u_char gfid[16];
u_char pargfid[16];
char *path;
char *bname;
int op_ret;
int op_errno;
loc_t resolve_loc;
} server_resolve_t;
typedef int (*server_resume_fn_t)(call_frame_t *frame, xlator_t *bound_xl);
int
resolve_and_resume(call_frame_t *frame, server_resume_fn_t fn);
struct _server_state {
rpc_transport_t *xprt;
inode_table_t *itable;
server_resume_fn_t resume_fn;
loc_t loc;
loc_t loc2;
server_resolve_t resolve;
server_resolve_t resolve2;
/* used within resolve_and_resume */
loc_t *loc_now;
server_resolve_t *resolve_now;
struct iatt stbuf;
int valid;
fd_t *fd;
dict_t *params;
int32_t flags;
int wbflags;
struct iovec payload_vector[MAX_IOVEC];
int payload_count;
struct iobuf *iobuf;
struct iobref *iobref;
size_t size;
off_t offset;
mode_t mode;
dev_t dev;
size_t nr_count;
int cmd;
int type;
char *name;
int name_len;
int mask;
char is_revalidate;
dict_t *dict;
struct gf_flock flock;
const char *volume;
dir_entry_t *entry;
gf_seek_what_t what;
dict_t *xdata;
mode_t umask;
struct gf_lease lease;
lock_migration_info_t locklist;
/* required for compound fops */
gfs3_compound_req req;
/* TODO: having xdr definition here
is not a good idea, but not taking
up the functionality right now */
gfx_compound_req req_v2;
/* last length till which iovec for compound
* writes was processed */
int write_length;
struct iovec rsp_vector[MAX_IOVEC];
int rsp_count;
struct iobuf *rsp_iobuf;
struct iobref *rsp_iobref;
compound_args_t *args;
/* subdir mount */
client_t *client;
};
extern struct rpcsvc_program gluster_handshake_prog;
extern struct rpcsvc_program glusterfs3_3_fop_prog;
extern struct rpcsvc_program glusterfs4_0_fop_prog;
typedef struct _server_ctx {
gf_lock_t fdtable_lock;
fdtable_t *fdtable;
} server_ctx_t;
typedef struct server_cleanup_xprt_arg {
xlator_t *this;
char *victim_name;
} server_cleanup_xprt_arg_t;
int
server_submit_reply(call_frame_t *frame, rpcsvc_request_t *req, void *arg,
struct iovec *payload, int payloadcount,
struct iobref *iobref, xdrproc_t xdrproc);
int
gf_server_check_setxattr_cmd(call_frame_t *frame, dict_t *dict);
int
gf_server_check_getxattr_cmd(call_frame_t *frame, const char *name);
void
forget_inode_if_no_dentry(inode_t *inode);
void *
server_graph_janitor_threads(void *);
server_ctx_t *
server_ctx_get(client_t *client, xlator_t *xlator);
#endif /* !_SERVER_H */
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