ReactOS 0.4.16-dev-112-g52265ae
Classes | Macros | Typedefs | Functions | Variables
svc_dg.c File Reference
#include <wintirpc.h>
#include <reentrant.h>
#include <sys/types.h>
#include <rpc/rpc.h>
#include <rpc/svc_dg.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "rpc_com.h"
Include dependency graph for svc_dg.c:

Go to the source code of this file.

Classes

struct  cache_node
 
struct  cl_cache
 

Macros

#define su_data(xprt)   ((struct svc_dg_data *)(xprt->xp_p2))
 
#define rpc_buffer(xprt)   ((xprt)->xp_p1)
 
#define MAX(a, b)   (((a) > (b)) ? (a) : (b))
 
#define SPARSENESS   4 /* 75% sparse */
 
#define ALLOC(type, size)    (type *) mem_alloc((sizeof (type) * (size)))
 
#define MEMZERO(addr, type, size)    (void) memset((void *) (addr), 0, sizeof (type) * (int) (size))
 
#define FREE(addr, type, size)    mem_free((addr), (sizeof (type) * (size)))
 
#define CACHE_LOC(transp, xid)
 

Typedefs

typedef struct cache_node * cache_ptr
 

Functions

static void svc_dg_ops (SVCXPRT *)
 
static enum xprt_stat svc_dg_stat (SVCXPRT *)
 
static bool_t svc_dg_recv (SVCXPRT *, struct rpc_msg *)
 
static bool_t svc_dg_reply (SVCXPRT *, struct rpc_msg *)
 
static bool_t svc_dg_getargs (SVCXPRT *, xdrproc_t, void *)
 
static bool_t svc_dg_freeargs (SVCXPRT *, xdrproc_t, void *)
 
static void svc_dg_destroy (SVCXPRT *)
 
static bool_t svc_dg_control (SVCXPRT *, const u_int, void *)
 
static int cache_get (SVCXPRT *, struct rpc_msg *, char **, size_t *)
 
static void cache_set (SVCXPRT *, size_t)
 
int svc_dg_enablecache (SVCXPRT *, u_int)
 
SVCXPRT * svc_dg_create (int fd, u_int sendsize, u_int recvsize)
 

Variables

static const char svc_dg_str [] = "svc_dg_create: %s"
 
static const char svc_dg_err1 [] = "could not get transport information"
 
static const char svc_dg_err2 [] = " transport does not support data transfer"
 
static const char __no_mem_str [] = "out of memory"
 
mutex_t dupreq_lock
 
static const char cache_enable_str [] = "svc_enablecache: %s %s"
 
static const char alloc_err [] = "could not allocate cache "
 
static const char enable_err [] = "cache already enabled"
 
static const char cache_set_str [] = "cache_set: %s"
 
static const char cache_set_err1 [] = "victim not found"
 
static const char cache_set_err2 [] = "victim alloc failed"
 
static const char cache_set_err3 [] = "could not allocate new rpc buffer"
 

Macro Definition Documentation

◆ ALLOC

#define ALLOC (   type,
  size 
)     (type *) mem_alloc((sizeof (type) * (size)))

Definition at line 321 of file svc_dg.c.

◆ CACHE_LOC

#define CACHE_LOC (   transp,
  xid 
)
Value:
(xid % (SPARSENESS * ((struct cl_cache *) \
su_data(transp)->su_cache)->uc_size))
xid
LONGLONG xid
Definition: nfs41_driver.c:106
cl_cache
Definition: svc_dg.c:357
cl_cache::uc_size
u_int uc_size
Definition: svc_dg.c:358
su_data
#define su_data(xprt)
Definition: svc_dg.c:61
SPARSENESS
#define SPARSENESS
Definition: svc_dg.c:319

Definition at line 371 of file svc_dg.c.

◆ FREE

#define FREE (   addr,
  type,
  size 
)     mem_free((addr), (sizeof (type) * (size)))

Definition at line 327 of file svc_dg.c.

◆ MAX

#define MAX (   a,
  b 
)    (((a) > (b)) ? (a) : (b))

Definition at line 65 of file svc_dg.c.

◆ MEMZERO

#define MEMZERO (   addr,
  type,
  size 
)     (void) memset((void *) (addr), 0, sizeof (type) * (int) (size))

Definition at line 324 of file svc_dg.c.

◆ rpc_buffer

#define rpc_buffer (   xprt)    ((xprt)->xp_p1)

Definition at line 62 of file svc_dg.c.

◆ SPARSENESS

#define SPARSENESS   4 /* 75% sparse */

Definition at line 319 of file svc_dg.c.

◆ su_data

#define su_data (   xprt)    ((struct svc_dg_data *)(xprt->xp_p2))

Definition at line 61 of file svc_dg.c.

Typedef Documentation

◆ cache_ptr

typedef struct cache_node* cache_ptr

Definition at line 333 of file svc_dg.c.

Function Documentation

◆ cache_get()

static int cache_get ( SVCXPRT *  xprt,
struct rpc_msg *  msg,
char **  replyp,
size_t *  replylenp 
)
static

Definition at line 533 of file svc_dg.c.

538{
539 u_int loc;
540 cache_ptr ent;
541 struct svc_dg_data *su = su_data(xprt);
542 struct cl_cache *uc = (struct cl_cache *) su->su_cache;
543#ifdef RPC_CACHE_DEBUG
544 struct netconfig *nconf;
545 char *uaddr;
546#endif
547
548 mutex_lock(&dupreq_lock);
549 loc = CACHE_LOC(xprt, su->su_xid);
550 for (ent = uc->uc_entries[loc]; ent != NULL; ent = ent->cache_next) {
551 if (ent->cache_xid == su->su_xid &&
552 ent->cache_proc == msg->rm_call.cb_proc &&
553 ent->cache_vers == msg->rm_call.cb_vers &&
554 ent->cache_prog == msg->rm_call.cb_prog &&
555 ent->cache_addr.len == xprt->xp_rtaddr.len &&
556 (memcmp(ent->cache_addr.buf, xprt->xp_rtaddr.buf,
557 xprt->xp_rtaddr.len) == 0)) {
558#ifdef RPC_CACHE_DEBUG
559 if (nconf = getnetconfigent(xprt->xp_netid)) {
560 uaddr = taddr2uaddr(nconf, &xprt->xp_rtaddr);
561 freenetconfigent(nconf);
562 printf(
563 "cache entry found for xid=%x prog=%d vers=%d proc=%d for rmtaddr=%s\n",
564 su->su_xid, msg->rm_call.cb_prog,
565 msg->rm_call.cb_vers,
566 msg->rm_call.cb_proc, uaddr);
567 free(uaddr);
568 }
569#endif
570 *replyp = ent->cache_reply;
571 *replylenp = ent->cache_replylen;
572 mutex_unlock(&dupreq_lock);
573 return (1);
574 }
575 }
576 /*
577 * Failed to find entry
578 * Remember a few things so we can do a set later
579 */
580 uc->uc_proc = msg->rm_call.cb_proc;
581 uc->uc_vers = msg->rm_call.cb_vers;
582 uc->uc_prog = msg->rm_call.cb_prog;
583 mutex_unlock(&dupreq_lock);
584 return (0);
585}
memcmp
int memcmp(void *Buffer1, void *Buffer2, ACPI_SIZE Count)
Definition: utclib.c:112
msg
#define msg(x)
Definition: auth_time.c:54
free
#define free
Definition: debug_ros.c:5
u_int
UINT32 u_int
Definition: types.h:82
NULL
#define NULL
Definition: types.h:112
printf
#define printf
Definition: freeldr.h:97
freenetconfigent
void freenetconfigent(struct netconfig *netconfigp)
Definition: getnetconfig.c:530
getnetconfigent
struct netconfig * getnetconfigent(char *netid) const
Definition: getnetconfig.c:432
mutex_lock
#define mutex_lock(m)
Definition: reentrant.h:128
mutex_unlock
#define mutex_unlock(m)
Definition: reentrant.h:129
taddr2uaddr
char * taddr2uaddr(const struct netconfig *nconf, const struct netbuf *nbuf)
Definition: rpc_generic.c:609
__rpc_svcxprt::xp_rtaddr
struct netbuf xp_rtaddr
Definition: svc.h:120
__rpc_svcxprt::xp_netid
char * xp_netid
Definition: svc.h:118
cache_node
Definition: svc_dg.c:334
cache_node::cache_reply
char * cache_reply
Definition: svc_dg.c:346
cache_node::cache_vers
rpcvers_t cache_vers
Definition: svc_dg.c:340
cache_node::cache_addr
struct netbuf cache_addr
Definition: svc_dg.c:342
cache_node::cache_replylen
size_t cache_replylen
Definition: svc_dg.c:347
cache_node::cache_xid
u_int32_t cache_xid
Definition: svc_dg.c:338
cache_node::cache_prog
rpcprog_t cache_prog
Definition: svc_dg.c:341
cache_node::cache_proc
rpcproc_t cache_proc
Definition: svc_dg.c:339
cache_node::cache_next
cache_ptr cache_next
Definition: svc_dg.c:351
cl_cache::uc_prog
rpcprog_t uc_prog
Definition: svc_dg.c:362
cl_cache::uc_proc
rpcproc_t uc_proc
Definition: svc_dg.c:364
cl_cache::uc_vers
rpcvers_t uc_vers
Definition: svc_dg.c:363
cl_cache::uc_entries
cache_ptr * uc_entries
Definition: svc_dg.c:359
svc_dg_data
Definition: svc_dg.h:41
svc_dg_data::su_cache
void * su_cache
Definition: svc_dg.h:47
svc_dg_data::su_xid
u_int32_t su_xid
Definition: svc_dg.h:44
dupreq_lock
mutex_t dupreq_lock
Definition: mt_misc.c:59
CACHE_LOC
#define CACHE_LOC(transp, xid)
Definition: svc_dg.c:371

Referenced by svc_dg_recv().

◆ cache_set()

static void cache_set ( SVCXPRT *  xprt,
size_t  replylen 
)
static

Definition at line 443 of file svc_dg.c.

446{
447 cache_ptr victim;
448 cache_ptr *vicp;
449 struct svc_dg_data *su = su_data(xprt);
450 struct cl_cache *uc = (struct cl_cache *) su->su_cache;
451 u_int loc;
452 char *newbuf;
453#ifdef RPC_CACHE_DEBUG
454 struct netconfig *nconf;
455 char *uaddr;
456#endif
457
458 mutex_lock(&dupreq_lock);
459 /*
460 * Find space for the new entry, either by
461 * reusing an old entry, or by mallocing a new one
462 */
463 victim = uc->uc_fifo[uc->uc_nextvictim];
464 if (victim != NULL) {
465 loc = CACHE_LOC(xprt, victim->cache_xid);
466 for (vicp = &uc->uc_entries[loc];
467 *vicp != NULL && *vicp != victim;
468 vicp = &(*vicp)->cache_next)
469 ;
470 if (*vicp == NULL) {
471 // XXX warnx(cache_set_str, cache_set_err1);
472 mutex_unlock(&dupreq_lock);
473 return;
474 }
475 *vicp = victim->cache_next; /* remove from cache */
476 newbuf = victim->cache_reply;
477 } else {
478 victim = ALLOC(struct cache_node, 1);
479 if (victim == NULL) {
480 // XXX warnx(cache_set_str, cache_set_err2);
481 mutex_unlock(&dupreq_lock);
482 return;
483 }
484 newbuf = mem_alloc(su->su_iosz);
485 if (newbuf == NULL) {
486 // XXX warnx(cache_set_str, cache_set_err3);
487 FREE(victim, struct cache_node, 1);
488 mutex_unlock(&dupreq_lock);
489 return;
490 }
491 }
492
493 /*
494 * Store it away
495 */
496#ifdef RPC_CACHE_DEBUG
497 if (nconf = getnetconfigent(xprt->xp_netid)) {
498 uaddr = taddr2uaddr(nconf, &xprt->xp_rtaddr);
499 freenetconfigent(nconf);
500 printf(
501 "cache set for xid= %x prog=%d vers=%d proc=%d for rmtaddr=%s\n",
502 su->su_xid, uc->uc_prog, uc->uc_vers,
503 uc->uc_proc, uaddr);
504 free(uaddr);
505 }
506#endif
507 victim->cache_replylen = replylen;
508 victim->cache_reply = rpc_buffer(xprt);
509 rpc_buffer(xprt) = newbuf;
510 xdrmem_create(&(su->su_xdrs), rpc_buffer(xprt),
511 su->su_iosz, XDR_ENCODE);
512 victim->cache_xid = su->su_xid;
513 victim->cache_proc = uc->uc_proc;
514 victim->cache_vers = uc->uc_vers;
515 victim->cache_prog = uc->uc_prog;
516 victim->cache_addr = xprt->xp_rtaddr;
517 victim->cache_addr.buf = ALLOC(char, xprt->xp_rtaddr.len);
518 (void) memcpy(victim->cache_addr.buf, xprt->xp_rtaddr.buf,
519 (size_t)xprt->xp_rtaddr.len);
520 loc = CACHE_LOC(xprt, victim->cache_xid);
521 victim->cache_next = uc->uc_entries[loc];
522 uc->uc_entries[loc] = victim;
523 uc->uc_fifo[uc->uc_nextvictim++] = victim;
524 uc->uc_nextvictim %= uc->uc_size;
525 mutex_unlock(&dupreq_lock);
526}
mem_alloc
#define mem_alloc(bsize)
Definition: types.h:123
memcpy
#define memcpy(s1, s2, n)
Definition: mkisofs.h:878
cl_cache::uc_fifo
cache_ptr * uc_fifo
Definition: svc_dg.c:360
cl_cache::uc_nextvictim
u_int uc_nextvictim
Definition: svc_dg.c:361
svc_dg_data::su_xdrs
XDR su_xdrs
Definition: svc_dg.h:45
svc_dg_data::su_iosz
size_t su_iosz
Definition: svc_dg.h:43
rpc_buffer
#define rpc_buffer(xprt)
Definition: svc_dg.c:62
FREE
#define FREE(addr, type, size)
Definition: svc_dg.c:327
ALLOC
#define ALLOC(type, size)
Definition: svc_dg.c:321
XDR_ENCODE
@ XDR_ENCODE
Definition: xdr.h:85
xdrmem_create
void xdrmem_create(XDR *xdrs, char *addr, u_int size, enum xdr_op op)
Definition: xdr_mem.c:94

Referenced by svc_dg_reply().

◆ svc_dg_control()

static bool_t svc_dg_control ( SVCXPRT *  xprt,
const u_int  rq,
void *  in 
)
static

Definition at line 275 of file svc_dg.c.

279{
280 return (FALSE);
281}
FALSE
#define FALSE
Definition: types.h:117

Referenced by svc_dg_ops().

◆ svc_dg_create()

SVCXPRT * svc_dg_create ( int  fd,
u_int  sendsize,
u_int  recvsize 
)

Definition at line 95 of file svc_dg.c.

99{
100 SVCXPRT *xprt;
101 struct svc_dg_data *su = NULL;
102 struct __rpc_sockinfo si;
103 struct sockaddr_storage ss;
104 socklen_t slen;
105
106 if (!__rpc_fd2sockinfo(fd, &si)) {
107 // XXX warnx(svc_dg_str, svc_dg_err1);
108 return (NULL);
109 }
110 /*
111 * Find the receive and the send size
112 */
113 sendsize = __rpc_get_t_size(si.si_af, si.si_proto, (int)sendsize);
114 recvsize = __rpc_get_t_size(si.si_af, si.si_proto, (int)recvsize);
115 if ((sendsize == 0) || (recvsize == 0)) {
116 // XXX warnx(svc_dg_str, svc_dg_err2);
117 return (NULL);
118 }
119
120 xprt = mem_alloc(sizeof (SVCXPRT));
121 if (xprt == NULL)
122 goto freedata;
123 memset(xprt, 0, sizeof (SVCXPRT));
124
125 su = mem_alloc(sizeof (*su));
126 if (su == NULL)
127 goto freedata;
128 su->su_iosz = ((MAX(sendsize, recvsize) + 3) / 4) * 4;
129 if ((rpc_buffer(xprt) = mem_alloc(su->su_iosz)) == NULL)
130 goto freedata;
131 xdrmem_create(&(su->su_xdrs), rpc_buffer(xprt), su->su_iosz,
132 XDR_DECODE);
133 su->su_cache = NULL;
134 xprt->xp_fd = fd;
135 xprt->xp_p2 = su;
136 xprt->xp_verf.oa_base = su->su_verfbody;
137 svc_dg_ops(xprt);
138 xprt->xp_rtaddr.maxlen = sizeof (struct sockaddr_storage);
139
140 slen = sizeof ss;
141 if (getsockname(fd, (struct sockaddr *)(void *)&ss, &slen) == SOCKET_ERROR)
142 goto freedata;
143 __rpc_set_netbuf(&xprt->xp_ltaddr, &ss, slen);
144
145 xprt_register(xprt);
146 return (xprt);
147freedata:
148 // XXX (void) warnx(svc_dg_str, __no_mem_str);
149 if (xprt) {
150 if (su)
151 (void) mem_free(su, sizeof (*su));
152 (void) mem_free(xprt, sizeof (SVCXPRT));
153 }
154 return (NULL);
155}
mem_free
#define mem_free(ptr, bsize)
Definition: types.h:124
ss
#define ss
Definition: i386-dis.c:441
socklen_t
int socklen_t
Definition: tcp.c:35
__rpc_get_t_size
u_int __rpc_get_t_size(int af, int proto, int size)
Definition: rpc_generic.c:139
__rpc_fd2sockinfo
int __rpc_fd2sockinfo(SOCKET fd, struct __rpc_sockinfo *sip)
Definition: rpc_generic.c:481
fd
static int fd
Definition: io.c:51
memset
#define memset(x, y, z)
Definition: compat.h:39
getsockname
INT WSAAPI getsockname(IN SOCKET s, OUT LPSOCKADDR name, IN OUT INT FAR *namelen)
Definition: sockctrl.c:213
__rpc_set_netbuf
struct netbuf * __rpc_set_netbuf(struct netbuf *, const void *, size_t)
Definition: rpc_generic.c:951
__rpc_sockinfo
Definition: types.h:164
__rpc_svcxprt
Definition: svc.h:90
__rpc_svcxprt::xp_p2
void * xp_p2
Definition: svc.h:124
__rpc_svcxprt::xp_fd
SOCKET xp_fd
Definition: svc.h:91
__rpc_svcxprt::xp_verf
struct opaque_auth xp_verf
Definition: svc.h:121
__rpc_svcxprt::xp_ltaddr
struct netbuf xp_ltaddr
Definition: svc.h:119
sockaddr_storage
Definition: ws2def.h:399
svc_dg_data::su_verfbody
char su_verfbody[MAX_AUTH_BYTES]
Definition: svc_dg.h:46
xprt_register
void xprt_register(SVCXPRT *xprt)
Definition: svc.c:97
svc_dg_ops
static void svc_dg_ops(SVCXPRT *)
Definition: svc_dg.c:284
MAX
#define MAX(a, b)
Definition: svc_dg.c:65
SOCKET_ERROR
#define SOCKET_ERROR
Definition: winsock.h:333
XDR_DECODE
@ XDR_DECODE
Definition: xdr.h:86

Referenced by svc_tli_create().

◆ svc_dg_destroy()

static void svc_dg_destroy ( SVCXPRT *  xprt)
static

Definition at line 253 of file svc_dg.c.

255{
256 struct svc_dg_data *su = su_data(xprt);
257
258 xprt_unregister(xprt);
259 if (xprt->xp_fd != -1)
260 (void)closesocket(xprt->xp_fd);
261 XDR_DESTROY(&(su->su_xdrs));
262 (void) mem_free(rpc_buffer(xprt), su->su_iosz);
263 (void) mem_free(su, sizeof (*su));
264 if (xprt->xp_rtaddr.buf)
265 (void) mem_free(xprt->xp_rtaddr.buf, xprt->xp_rtaddr.maxlen);
266 if (xprt->xp_ltaddr.buf)
267 (void) mem_free(xprt->xp_ltaddr.buf, xprt->xp_ltaddr.maxlen);
268 if (xprt->xp_tp)
269 (void) free(xprt->xp_tp);
270 (void) mem_free(xprt, sizeof (SVCXPRT));
271}
closesocket
#define closesocket
Definition: ncftp.h:477
__rpc_svcxprt::xp_tp
char * xp_tp
Definition: svc.h:117
xprt_unregister
void xprt_unregister(SVCXPRT *xprt)
Definition: svc.c:128
XDR_DESTROY
#define XDR_DESTROY(xdrs)
Definition: xdr.h:214

Referenced by svc_dg_ops().

◆ svc_dg_enablecache()

int svc_dg_enablecache ( SVCXPRT *  transp,
u_int  size 
)

Definition at line 386 of file svc_dg.c.

389{
390 struct svc_dg_data *su = su_data(transp);
391 struct cl_cache *uc;
392
393 mutex_lock(&dupreq_lock);
394 if (su->su_cache != NULL) {
395 // XXX (void) warnx(cache_enable_str, enable_err, " ");
396 mutex_unlock(&dupreq_lock);
397 return (0);
398 }
399 uc = ALLOC(struct cl_cache, 1);
400 if (uc == NULL) {
401 // XXX warnx(cache_enable_str, alloc_err, " ");
402 mutex_unlock(&dupreq_lock);
403 return (0);
404 }
405 uc->uc_size = size;
406 uc->uc_nextvictim = 0;
407 uc->uc_entries = ALLOC(cache_ptr, size * SPARSENESS);
408 if (uc->uc_entries == NULL) {
409 // XXX warnx(cache_enable_str, alloc_err, "data");
410 FREE(uc, struct cl_cache, 1);
411 mutex_unlock(&dupreq_lock);
412 return (0);
413 }
414 MEMZERO(uc->uc_entries, cache_ptr, size * SPARSENESS);
415 uc->uc_fifo = ALLOC(cache_ptr, size);
416 if (uc->uc_fifo == NULL) {
417 // XXX warnx(cache_enable_str, alloc_err, "fifo");
418 FREE(uc->uc_entries, cache_ptr, size * SPARSENESS);
419 FREE(uc, struct cl_cache, 1);
420 mutex_unlock(&dupreq_lock);
421 return (0);
422 }
423 MEMZERO(uc->uc_fifo, cache_ptr, size);
424 su->su_cache = (char *)(void *)uc;
425 mutex_unlock(&dupreq_lock);
426 return (1);
427}
size
GLsizeiptr size
Definition: glext.h:5919
MEMZERO
#define MEMZERO(addr, type, size)
Definition: svc_dg.c:324

◆ svc_dg_freeargs()

static bool_t svc_dg_freeargs ( SVCXPRT *  xprt,
xdrproc_t  xdr_args,
void *  args_ptr 
)
static

Definition at line 241 of file svc_dg.c.

245{
246 XDR *xdrs = &(su_data(xprt)->su_xdrs);
247
248 xdrs->x_op = XDR_FREE;
249 return (*xdr_args)(xdrs, args_ptr);
250}
__rpc_xdr
Definition: xdr.h:103
__rpc_xdr::x_op
enum xdr_op x_op
Definition: xdr.h:104
XDR_FREE
@ XDR_FREE
Definition: xdr.h:87

Referenced by svc_dg_ops().

◆ svc_dg_getargs()

static bool_t svc_dg_getargs ( SVCXPRT *  xprt,
xdrproc_t  xdr_args,
void *  args_ptr 
)
static

Definition at line 232 of file svc_dg.c.

236{
237 return (*xdr_args)(&(su_data(xprt)->su_xdrs), args_ptr);
238}

Referenced by svc_dg_ops().

◆ svc_dg_ops()

static void svc_dg_ops ( SVCXPRT *  xprt)
static

Definition at line 284 of file svc_dg.c.

286{
287 static struct xp_ops ops;
288 static struct xp_ops2 ops2;
289 extern mutex_t ops_lock;
290
291/* VARIABLES PROTECTED BY ops_lock: ops */
292
293 mutex_lock(&ops_lock);
294 if (ops.xp_recv == NULL) {
295 ops.xp_recv = svc_dg_recv;
296 ops.xp_stat = svc_dg_stat;
297 ops.xp_getargs = svc_dg_getargs;
298 ops.xp_reply = svc_dg_reply;
299 ops.xp_freeargs = svc_dg_freeargs;
300 ops.xp_destroy = svc_dg_destroy;
301 ops2.xp_control = svc_dg_control;
302 }
303 xprt->xp_ops = &ops;
304 xprt->xp_ops2 = &ops2;
305 mutex_unlock(&ops_lock);
306}
ops_lock
mutex_t ops_lock
Definition: mt_misc.c:71
__rpc_svcxprt::xp_ops2
const struct __rpc_svcxprt::xp_ops2 * xp_ops2
__rpc_svcxprt::xp_ops
const struct __rpc_svcxprt::xp_ops * xp_ops
mutex
Definition: module.h:456
svc_dg_recv
static bool_t svc_dg_recv(SVCXPRT *, struct rpc_msg *)
Definition: svc_dg.c:166
svc_dg_freeargs
static bool_t svc_dg_freeargs(SVCXPRT *, xdrproc_t, void *)
Definition: svc_dg.c:241
svc_dg_control
static bool_t svc_dg_control(SVCXPRT *, const u_int, void *)
Definition: svc_dg.c:275
svc_dg_reply
static bool_t svc_dg_reply(SVCXPRT *, struct rpc_msg *)
Definition: svc_dg.c:206
svc_dg_destroy
static void svc_dg_destroy(SVCXPRT *)
Definition: svc_dg.c:253
svc_dg_getargs
static bool_t svc_dg_getargs(SVCXPRT *, xdrproc_t, void *)
Definition: svc_dg.c:232
svc_dg_stat
static enum xprt_stat svc_dg_stat(SVCXPRT *)
Definition: svc_dg.c:159

Referenced by svc_dg_create().

◆ svc_dg_recv()

static bool_t svc_dg_recv ( SVCXPRT *  xprt,
struct rpc_msg *  msg 
)
static

Definition at line 166 of file svc_dg.c.

169{
170 struct svc_dg_data *su = su_data(xprt);
171 XDR *xdrs = &(su->su_xdrs);
172 char *reply;
173 struct sockaddr_storage ss;
174 socklen_t alen;
175 size_t replylen;
176 ssize_t rlen;
177
178again:
179 alen = sizeof (struct sockaddr_storage);
180 rlen = recvfrom(xprt->xp_fd, rpc_buffer(xprt), su->su_iosz, 0,
181 (struct sockaddr *)(void *)&ss, &alen);
182 if (rlen == -1 && errno == EINTR)
183 goto again;
184 if (rlen == -1 || (rlen < (ssize_t)(4 * sizeof (u_int32_t))))
185 return (FALSE);
186 __rpc_set_netbuf(&xprt->xp_rtaddr, &ss, alen);
187
188 __xprt_set_raddr(xprt, &ss);
189 xdrs->x_op = XDR_DECODE;
190 XDR_SETPOS(xdrs, 0);
191 if (! xdr_callmsg(xdrs, msg)) {
192 return (FALSE);
193 }
194 su->su_xid = msg->rm_xid;
195 if (su->su_cache != NULL) {
196 if (cache_get(xprt, msg, &reply, &replylen)) {
197 (void)sendto(xprt->xp_fd, reply, replylen, 0,
198 (struct sockaddr *)(void *)&ss, alen);
199 return (FALSE);
200 }
201 }
202 return (TRUE);
203}
EINTR
#define EINTR
Definition: acclib.h:80
TRUE
#define TRUE
Definition: types.h:120
recvfrom
INT WSAAPI recvfrom(IN SOCKET s, OUT CHAR FAR *buf, IN INT len, IN INT flags, OUT LPSOCKADDR from, IN OUT INT FAR *fromlen)
Definition: recv.c:87
sendto
INT WSAAPI sendto(IN SOCKET s, IN CONST CHAR FAR *buf, IN INT len, IN INT flags, IN CONST struct sockaddr *to, IN INT tolen)
Definition: send.c:82
u_int32_t
unsigned int u_int32_t
Definition: rosdhcp.h:35
ssize_t
int ssize_t
Definition: rosdhcp.h:48
xdr_callmsg
bool_t xdr_callmsg(XDR *xdrs, struct rpc_msg *cmsg)
Definition: rpc_callmsg.c:50
errno
#define errno
Definition: errno.h:18
__xprt_set_raddr
void __xprt_set_raddr(SVCXPRT *, const struct sockaddr_storage *)
Definition: svc_vc.c:111
cache_get
static int cache_get(SVCXPRT *, struct rpc_msg *, char **, size_t *)
Definition: svc_dg.c:533
XDR_SETPOS
#define XDR_SETPOS(xdrs, pos)
Definition: xdr.h:204

Referenced by svc_dg_ops().

◆ svc_dg_reply()

static bool_t svc_dg_reply ( SVCXPRT *  xprt,
struct rpc_msg *  msg 
)
static

Definition at line 206 of file svc_dg.c.

209{
210 struct svc_dg_data *su = su_data(xprt);
211 XDR *xdrs = &(su->su_xdrs);
212 bool_t stat = FALSE;
213 size_t slen;
214
215 xdrs->x_op = XDR_ENCODE;
216 XDR_SETPOS(xdrs, 0);
217 msg->rm_xid = su->su_xid;
218 if (xdr_replymsg(xdrs, msg)) {
219 slen = XDR_GETPOS(xdrs);
220 if (sendto(xprt->xp_fd, rpc_buffer(xprt), slen, 0,
221 (struct sockaddr *)xprt->xp_rtaddr.buf,
222 (socklen_t)xprt->xp_rtaddr.len) == (ssize_t) slen) {
223 stat = TRUE;
224 if (su->su_cache)
225 cache_set(xprt, slen);
226 }
227 }
228 return (stat);
229}
bool_t
int32_t bool_t
Definition: types.h:101
xdr_replymsg
bool_t xdr_replymsg(XDR *xdrs, struct rpc_msg *rmsg)
Definition: rpc_prot.c:188
stat
Definition: stat.h:55
cache_set
static void cache_set(SVCXPRT *, size_t)
Definition: svc_dg.c:443
XDR_GETPOS
#define XDR_GETPOS(xdrs)
Definition: xdr.h:199

Referenced by svc_dg_ops().

◆ svc_dg_stat()

static enum xprt_stat svc_dg_stat ( SVCXPRT *  xprt)
static

Definition at line 159 of file svc_dg.c.

161{
162 return (XPRT_IDLE);
163}
XPRT_IDLE
@ XPRT_IDLE
Definition: svc.h:84

Referenced by svc_dg_ops().

Variable Documentation

◆ __no_mem_str

const char __no_mem_str[] = "out of memory"
static

Definition at line 92 of file svc_dg.c.

◆ alloc_err

const char alloc_err[] = "could not allocate cache "
static

Definition at line 382 of file svc_dg.c.

◆ cache_enable_str

const char cache_enable_str[] = "svc_enablecache: %s %s"
static

Definition at line 381 of file svc_dg.c.

◆ cache_set_err1

const char cache_set_err1[] = "victim not found"
static

Definition at line 438 of file svc_dg.c.

◆ cache_set_err2

const char cache_set_err2[] = "victim alloc failed"
static

Definition at line 439 of file svc_dg.c.

◆ cache_set_err3

const char cache_set_err3[] = "could not allocate new rpc buffer"
static

Definition at line 440 of file svc_dg.c.

◆ cache_set_str

const char cache_set_str[] = "cache_set: %s"
static

Definition at line 437 of file svc_dg.c.

◆ dupreq_lock

mutex_t dupreq_lock
extern

Definition at line 59 of file mt_misc.c.

Referenced by cache_get(), cache_set(), and svc_dg_enablecache().

◆ enable_err

const char enable_err[] = "cache already enabled"
static

Definition at line 383 of file svc_dg.c.

◆ svc_dg_err1

const char svc_dg_err1[] = "could not get transport information"
static

Definition at line 90 of file svc_dg.c.

◆ svc_dg_err2

const char svc_dg_err2[] = " transport does not support data transfer"
static

Definition at line 91 of file svc_dg.c.

◆ svc_dg_str

const char svc_dg_str[] = "svc_dg_create: %s"
static

Definition at line 89 of file svc_dg.c.