/usr/include/glusterfs/rpc/rpc-transport.h is in glusterfs-common 3.13.2-1build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 | /*
Copyright (c) 2008-2012 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 __RPC_TRANSPORT_H__
#define __RPC_TRANSPORT_H__
#include <inttypes.h>
#ifdef GF_SOLARIS_HOST_OS
#include <rpc/auth.h>
#else
#include <rpc/rpc.h>
#endif
#include <rpc/rpc_msg.h>
#ifndef MAX_IOVEC
#define MAX_IOVEC 16
#endif
#ifndef AI_ADDRCONFIG
#define AI_ADDRCONFIG 0
#endif /* AI_ADDRCONFIG */
/* Given the 4-byte fragment header, returns non-zero if this fragment
* is the last fragment for the RPC record being assembled.
* RPC Record marking standard defines a 32 bit value as the fragment
* header with the MSB signifying whether the fragment is the last
* fragment for the record being assembled.
*/
#define RPC_LASTFRAG(fraghdr) ((uint32_t)(fraghdr & 0x80000000U))
/* Given the 4-byte fragment header, extracts the bits that contain
* the fragment size.
*/
#define RPC_FRAGSIZE(fraghdr) ((uint32_t)(fraghdr & 0x7fffffffU))
#define RPC_FRAGHDR_SIZE 4
#define RPC_MSGTYPE_SIZE 8
/* size of the msg from the start of call-body till and including credlen */
#define RPC_CALL_BODY_SIZE 24
#define RPC_REPLY_STATUS_SIZE 4
#define RPC_AUTH_FLAVOUR_N_LENGTH_SIZE 8
#define RPC_ACCEPT_STATUS_LEN 4
struct rpc_transport_ops;
typedef struct rpc_transport rpc_transport_t;
#include "dict.h"
#include "compat.h"
#include "rpcsvc-common.h"
struct peer_info {
struct sockaddr_storage sockaddr;
socklen_t sockaddr_len;
char identifier[UNIX_PATH_MAX];
// OP-VERSION of clients
uint32_t max_op_version;
uint32_t min_op_version;
//Volume mounted by client
char volname[NAME_MAX];
};
typedef struct peer_info peer_info_t;
typedef enum msg_type msg_type_t;
typedef enum {
RPC_TRANSPORT_ACCEPT, /* New client has been accepted */
RPC_TRANSPORT_DISCONNECT, /* Connection is disconnected */
RPC_TRANSPORT_CLEANUP, /* connection is about to be freed */
/*RPC_TRANSPORT_READ,*/ /* An event used to enable rpcsvc to instruct
* transport the number of bytes to read.
* This helps in reading large msgs, wherein
* the rpc actors might decide to place the
* actor's payload in new iobufs separate
* from the rpc header, proghdr and
* authentication information. glusterfs/nfs
* read and write actors are few examples
* that might beniefit from this. While
* reading a single msg, this event may be
* delivered more than once.
*/
RPC_TRANSPORT_MAP_XID_REQUEST, /* receiver of this event should send
* the prognum and procnum corresponding
* to xid.
*/
RPC_TRANSPORT_MSG_RECEIVED, /* Complete rpc msg has been read */
RPC_TRANSPORT_CONNECT, /* client is connected to server */
RPC_TRANSPORT_MSG_SENT,
} rpc_transport_event_t;
struct rpc_transport_msg {
struct iovec *rpchdr;
int rpchdrcount;
struct iovec *proghdr;
int proghdrcount;
struct iovec *progpayload;
int progpayloadcount;
struct iobref *iobref;
};
typedef struct rpc_transport_msg rpc_transport_msg_t;
struct rpc_transport_rsp {
struct iovec *rsphdr;
int rsphdr_count;
struct iovec *rsp_payload;
int rsp_payload_count;
struct iobref *rsp_iobref;
};
typedef struct rpc_transport_rsp rpc_transport_rsp_t;
struct rpc_transport_req {
rpc_transport_msg_t msg;
rpc_transport_rsp_t rsp;
struct rpc_req *rpc_req;
};
typedef struct rpc_transport_req rpc_transport_req_t;
struct rpc_transport_reply {
rpc_transport_msg_t msg;
void *private;
};
typedef struct rpc_transport_reply rpc_transport_reply_t;
struct rpc_transport_data {
char is_request;
union {
rpc_transport_req_t req;
rpc_transport_reply_t reply;
} data;
};
typedef struct rpc_transport_data rpc_transport_data_t;
/* FIXME: prognum, procnum and progver are already present in
* rpc_request, hence these should be removed from request_info
*/
struct rpc_request_info {
uint32_t xid;
int prognum;
int progver;
int procnum;
void *rpc_req; /* struct rpc_req */
rpc_transport_rsp_t rsp;
};
typedef struct rpc_request_info rpc_request_info_t;
struct rpc_transport_pollin {
struct iovec vector[MAX_IOVEC];
int count;
char vectored;
void *private;
struct iobref *iobref;
char is_reply;
};
typedef struct rpc_transport_pollin rpc_transport_pollin_t;
typedef int (*rpc_transport_notify_t) (rpc_transport_t *, void *mydata,
rpc_transport_event_t, void *data, ...);
struct rpc_transport {
struct rpc_transport_ops *ops;
rpc_transport_t *listener; /* listener transport to which
* request for creation of this
* transport came from. valid only
* on server process.
*/
void *private;
struct _client *xl_private;
void *xl; /* Used for THIS */
void *mydata;
pthread_mutex_t lock;
int32_t refcount;
int32_t outstanding_rpc_count;
glusterfs_ctx_t *ctx;
dict_t *options;
char *name;
void *dnscache;
void *drc_client;
data_t *buf;
int32_t (*init) (rpc_transport_t *this);
void (*fini) (rpc_transport_t *this);
int (*reconfigure) (rpc_transport_t *this, dict_t *options);
rpc_transport_notify_t notify;
void *notify_data;
peer_info_t peerinfo;
peer_info_t myinfo;
uint64_t total_bytes_read;
uint64_t total_bytes_write;
uint32_t xid; /* RPC/XID used for callbacks */
struct list_head list;
int bind_insecure;
void *dl_handle; /* handle of dlopen() */
char *ssl_name;
dict_t *clnt_options; /* store options received from
* client */
/* connect_failed: saves the connect() syscall status as socket_t
* member holding connect() status can't be accessed by higher gfapi
* layer or in client management notification handler functions
*/
gf_boolean_t connect_failed;
};
struct rpc_transport_ops {
/* no need of receive op, msg will be delivered through an event
* notification
*/
int32_t (*submit_request) (rpc_transport_t *this,
rpc_transport_req_t *req);
int32_t (*submit_reply) (rpc_transport_t *this,
rpc_transport_reply_t *reply);
int32_t (*connect) (rpc_transport_t *this, int port);
int32_t (*listen) (rpc_transport_t *this);
int32_t (*disconnect) (rpc_transport_t *this, gf_boolean_t wait);
int32_t (*get_peername) (rpc_transport_t *this, char *hostname,
int hostlen);
int32_t (*get_peeraddr) (rpc_transport_t *this, char *peeraddr,
int addrlen, struct sockaddr_storage *sa,
socklen_t sasize);
int32_t (*get_myname) (rpc_transport_t *this, char *hostname,
int hostlen);
int32_t (*get_myaddr) (rpc_transport_t *this, char *peeraddr,
int addrlen, struct sockaddr_storage *sa,
socklen_t sasize);
int32_t (*throttle) (rpc_transport_t *this, gf_boolean_t onoff);
};
int32_t
rpc_transport_count (const char *transport_type);
int32_t
rpc_transport_listen (rpc_transport_t *this);
int32_t
rpc_transport_connect (rpc_transport_t *this, int port);
int32_t
rpc_transport_disconnect (rpc_transport_t *this, gf_boolean_t wait);
int32_t
rpc_transport_destroy (rpc_transport_t *this);
int32_t
rpc_transport_notify (rpc_transport_t *this, rpc_transport_event_t event,
void *data, ...);
int32_t
rpc_transport_submit_request (rpc_transport_t *this, rpc_transport_req_t *req);
int32_t
rpc_transport_submit_reply (rpc_transport_t *this,
rpc_transport_reply_t *reply);
rpc_transport_t *
rpc_transport_load (glusterfs_ctx_t *ctx, dict_t *options, char *name);
rpc_transport_t *
rpc_transport_ref (rpc_transport_t *trans);
int32_t
rpc_transport_unref (rpc_transport_t *trans);
int
rpc_transport_register_notify (rpc_transport_t *trans, rpc_transport_notify_t,
void *mydata);
int32_t
rpc_transport_get_peername (rpc_transport_t *this, char *hostname, int hostlen);
int32_t
rpc_transport_get_peeraddr (rpc_transport_t *this, char *peeraddr, int addrlen,
struct sockaddr_storage *sa, size_t salen);
int32_t
rpc_transport_get_myname (rpc_transport_t *this, char *hostname, int hostlen);
int32_t
rpc_transport_get_myaddr (rpc_transport_t *this, char *peeraddr, int addrlen,
struct sockaddr_storage *sa, size_t salen);
int
rpc_transport_throttle (rpc_transport_t *this, gf_boolean_t onoff);
rpc_transport_pollin_t *
rpc_transport_pollin_alloc (rpc_transport_t *this, struct iovec *vector,
int count, struct iobuf *hdr_iobuf,
struct iobref *iobref, void *private);
void
rpc_transport_pollin_destroy (rpc_transport_pollin_t *pollin);
int
rpc_transport_keepalive_options_set (dict_t *options, int32_t interval,
int32_t time, int32_t timeout);
int
rpc_transport_unix_options_build (dict_t **options, char *filepath,
int frame_timeout);
int
rpc_transport_inet_options_build (dict_t **options, const char *hostname, int port);
#endif /* __RPC_TRANSPORT_H__ */
|