The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]

FreeBSD/Linux Kernel Cross Reference
sys/fs/lockd/xdr.c

Version: -  FREEBSD  -  FREEBSD-13-STABLE  -  FREEBSD-13-0  -  FREEBSD-12-STABLE  -  FREEBSD-12-0  -  FREEBSD-11-STABLE  -  FREEBSD-11-0  -  FREEBSD-10-STABLE  -  FREEBSD-10-0  -  FREEBSD-9-STABLE  -  FREEBSD-9-0  -  FREEBSD-8-STABLE  -  FREEBSD-8-0  -  FREEBSD-7-STABLE  -  FREEBSD-7-0  -  FREEBSD-6-STABLE  -  FREEBSD-6-0  -  FREEBSD-5-STABLE  -  FREEBSD-5-0  -  FREEBSD-4-STABLE  -  FREEBSD-3-STABLE  -  FREEBSD22  -  l41  -  OPENBSD  -  linux-2.6  -  MK84  -  PLAN9  -  xnu-8792 
SearchContext: -  none  -  3  -  10 

    1 /*
    2  * linux/fs/lockd/xdr.c
    3  *
    4  * XDR support for lockd and the lock client.
    5  *
    6  * Copyright (C) 1995, 1996 Olaf Kirch <okir@monad.swb.de>
    7  */
    8 
    9 #include <linux/config.h>
   10 #include <linux/types.h>
   11 #include <linux/sched.h>
   12 #include <linux/utsname.h>
   13 #include <linux/nfs.h>
   14 
   15 #include <linux/sunrpc/xdr.h>
   16 #include <linux/sunrpc/clnt.h>
   17 #include <linux/sunrpc/svc.h>
   18 #include <linux/sunrpc/stats.h>
   19 #include <linux/lockd/lockd.h>
   20 #include <linux/lockd/sm_inter.h>
   21 
   22 #define NLMDBG_FACILITY         NLMDBG_XDR
   23 
   24 
   25 static inline loff_t
   26 s32_to_loff_t(__s32 offset)
   27 {
   28         return (loff_t)offset;
   29 }
   30 
   31 static inline __s32
   32 loff_t_to_s32(loff_t offset)
   33 {
   34         __s32 res;
   35         if (offset >= NLM_OFFSET_MAX)
   36                 res = NLM_OFFSET_MAX;
   37         else if (offset <= -NLM_OFFSET_MAX)
   38                 res = -NLM_OFFSET_MAX;
   39         else
   40                 res = offset;
   41         return res;
   42 }
   43 
   44 /*
   45  * XDR functions for basic NLM types
   46  */
   47 static inline u32 *nlm_decode_cookie(u32 *p, struct nlm_cookie *c)
   48 {
   49         unsigned int    len;
   50 
   51         len = ntohl(*p++);
   52         
   53         if(len==0)
   54         {
   55                 c->len=4;
   56                 memset(c->data, 0, 4);  /* hockeypux brain damage */
   57         }
   58         else if(len<=8)
   59         {
   60                 c->len=len;
   61                 memcpy(c->data, p, len);
   62                 p+=(len+3)>>2;
   63         }
   64         else 
   65         {
   66                 printk(KERN_NOTICE
   67                         "lockd: bad cookie size %d (only cookies under 8 bytes are supported.)\n", len);
   68                 return NULL;
   69         }
   70         return p;
   71 }
   72 
   73 static inline u32 *
   74 nlm_encode_cookie(u32 *p, struct nlm_cookie *c)
   75 {
   76         *p++ = htonl(c->len);
   77         memcpy(p, c->data, c->len);
   78         p+=(c->len+3)>>2;
   79         return p;
   80 }
   81 
   82 static inline u32 *
   83 nlm_decode_fh(u32 *p, struct nfs_fh *f)
   84 {
   85         unsigned int    len;
   86 
   87         if ((len = ntohl(*p++)) != NFS2_FHSIZE) {
   88                 printk(KERN_NOTICE
   89                         "lockd: bad fhandle size %x (should be %d)\n",
   90                         len, NFS2_FHSIZE);
   91                 return NULL;
   92         }
   93         f->size = NFS2_FHSIZE;
   94         memset(f->data, 0, sizeof(f->data));
   95         memcpy(f->data, p, NFS2_FHSIZE);
   96         return p + XDR_QUADLEN(NFS2_FHSIZE);
   97 }
   98 
   99 static inline u32 *
  100 nlm_encode_fh(u32 *p, struct nfs_fh *f)
  101 {
  102         *p++ = htonl(NFS2_FHSIZE);
  103         memcpy(p, f->data, NFS2_FHSIZE);
  104         return p + XDR_QUADLEN(NFS2_FHSIZE);
  105 }
  106 
  107 /*
  108  * Encode and decode owner handle
  109  */
  110 static inline u32 *
  111 nlm_decode_oh(u32 *p, struct xdr_netobj *oh)
  112 {
  113         return xdr_decode_netobj(p, oh);
  114 }
  115 
  116 static inline u32 *
  117 nlm_encode_oh(u32 *p, struct xdr_netobj *oh)
  118 {
  119         return xdr_encode_netobj(p, oh);
  120 }
  121 
  122 static inline u32 *
  123 nlm_decode_lock(u32 *p, struct nlm_lock *lock)
  124 {
  125         struct file_lock        *fl = &lock->fl;
  126         s32                     start, len, end;
  127 
  128         if (!(p = xdr_decode_string_inplace(p, &lock->caller,
  129                                             &lock->len,
  130                                             NLM_MAXSTRLEN))
  131          || !(p = nlm_decode_fh(p, &lock->fh))
  132          || !(p = nlm_decode_oh(p, &lock->oh)))
  133                 return NULL;
  134 
  135         locks_init_lock(fl);
  136         fl->fl_owner = current->files;
  137         fl->fl_pid   = ntohl(*p++);
  138         fl->fl_flags = FL_POSIX;
  139         fl->fl_type  = F_RDLCK;         /* as good as anything else */
  140         start = ntohl(*p++);
  141         len = ntohl(*p++);
  142         end = start + len - 1;
  143 
  144         fl->fl_start = s32_to_loff_t(start);
  145 
  146         if (len == 0 || end < 0)
  147                 fl->fl_end = OFFSET_MAX;
  148         else
  149                 fl->fl_end = s32_to_loff_t(end);
  150         return p;
  151 }
  152 
  153 /*
  154  * Encode a lock as part of an NLM call
  155  */
  156 static u32 *
  157 nlm_encode_lock(u32 *p, struct nlm_lock *lock)
  158 {
  159         struct file_lock        *fl = &lock->fl;
  160         __s32                   start, len;
  161 
  162         if (!(p = xdr_encode_string(p, lock->caller))
  163          || !(p = nlm_encode_fh(p, &lock->fh))
  164          || !(p = nlm_encode_oh(p, &lock->oh)))
  165                 return NULL;
  166 
  167         if (fl->fl_start > NLM_OFFSET_MAX
  168          || (fl->fl_end > NLM_OFFSET_MAX && fl->fl_end != OFFSET_MAX))
  169                 return NULL;
  170 
  171         start = loff_t_to_s32(fl->fl_start);
  172         if (fl->fl_end == OFFSET_MAX)
  173                 len = 0;
  174         else
  175                 len = loff_t_to_s32(fl->fl_end - fl->fl_start + 1);
  176 
  177         *p++ = htonl(fl->fl_pid);
  178         *p++ = htonl(start);
  179         *p++ = htonl(len);
  180 
  181         return p;
  182 }
  183 
  184 /*
  185  * Encode result of a TEST/TEST_MSG call
  186  */
  187 static u32 *
  188 nlm_encode_testres(u32 *p, struct nlm_res *resp)
  189 {
  190         s32             start, len;
  191 
  192         if (!(p = nlm_encode_cookie(p, &resp->cookie)))
  193                 return 0;
  194         *p++ = resp->status;
  195 
  196         if (resp->status == nlm_lck_denied) {
  197                 struct file_lock        *fl = &resp->lock.fl;
  198 
  199                 *p++ = (fl->fl_type == F_RDLCK)? xdr_zero : xdr_one;
  200                 *p++ = htonl(fl->fl_pid);
  201 
  202                 /* Encode owner handle. */
  203                 if (!(p = xdr_encode_netobj(p, &resp->lock.oh)))
  204                         return 0;
  205 
  206                 start = loff_t_to_s32(fl->fl_start);
  207                 if (fl->fl_end == OFFSET_MAX)
  208                         len = 0;
  209                 else
  210                         len = loff_t_to_s32(fl->fl_end - fl->fl_start + 1);
  211 
  212                 *p++ = htonl(start);
  213                 *p++ = htonl(len);
  214         }
  215 
  216         return p;
  217 }
  218 
  219 /*
  220  * Check buffer bounds after decoding arguments
  221  */
  222 static inline int
  223 xdr_argsize_check(struct svc_rqst *rqstp, u32 *p)
  224 {
  225         struct svc_buf  *buf = &rqstp->rq_argbuf;
  226 
  227         return p - buf->base <= buf->buflen;
  228 }
  229 
  230 static inline int
  231 xdr_ressize_check(struct svc_rqst *rqstp, u32 *p)
  232 {
  233         struct svc_buf  *buf = &rqstp->rq_resbuf;
  234 
  235         buf->len = p - buf->base;
  236         return (buf->len <= buf->buflen);
  237 }
  238 
  239 /*
  240  * First, the server side XDR functions
  241  */
  242 int
  243 nlmsvc_decode_testargs(struct svc_rqst *rqstp, u32 *p, nlm_args *argp)
  244 {
  245         u32     exclusive;
  246 
  247         if (!(p = nlm_decode_cookie(p, &argp->cookie)))
  248                 return 0;
  249 
  250         exclusive = ntohl(*p++);
  251         if (!(p = nlm_decode_lock(p, &argp->lock)))
  252                 return 0;
  253         if (exclusive)
  254                 argp->lock.fl.fl_type = F_WRLCK;
  255 
  256         return xdr_argsize_check(rqstp, p);
  257 }
  258 
  259 int
  260 nlmsvc_encode_testres(struct svc_rqst *rqstp, u32 *p, struct nlm_res *resp)
  261 {
  262         if (!(p = nlm_encode_testres(p, resp)))
  263                 return 0;
  264         return xdr_ressize_check(rqstp, p);
  265 }
  266 
  267 int
  268 nlmsvc_decode_lockargs(struct svc_rqst *rqstp, u32 *p, nlm_args *argp)
  269 {
  270         u32     exclusive;
  271 
  272         if (!(p = nlm_decode_cookie(p, &argp->cookie)))
  273                 return 0;
  274         argp->block  = ntohl(*p++);
  275         exclusive    = ntohl(*p++);
  276         if (!(p = nlm_decode_lock(p, &argp->lock)))
  277                 return 0;
  278         if (exclusive)
  279                 argp->lock.fl.fl_type = F_WRLCK;
  280         argp->reclaim = ntohl(*p++);
  281         argp->state   = ntohl(*p++);
  282         argp->monitor = 1;              /* monitor client by default */
  283 
  284         return xdr_argsize_check(rqstp, p);
  285 }
  286 
  287 int
  288 nlmsvc_decode_cancargs(struct svc_rqst *rqstp, u32 *p, nlm_args *argp)
  289 {
  290         u32     exclusive;
  291 
  292         if (!(p = nlm_decode_cookie(p, &argp->cookie)))
  293                 return 0;
  294         argp->block = ntohl(*p++);
  295         exclusive = ntohl(*p++);
  296         if (!(p = nlm_decode_lock(p, &argp->lock)))
  297                 return 0;
  298         if (exclusive)
  299                 argp->lock.fl.fl_type = F_WRLCK;
  300         return xdr_argsize_check(rqstp, p);
  301 }
  302 
  303 int
  304 nlmsvc_decode_unlockargs(struct svc_rqst *rqstp, u32 *p, nlm_args *argp)
  305 {
  306         if (!(p = nlm_decode_cookie(p, &argp->cookie))
  307          || !(p = nlm_decode_lock(p, &argp->lock)))
  308                 return 0;
  309         argp->lock.fl.fl_type = F_UNLCK;
  310         return xdr_argsize_check(rqstp, p);
  311 }
  312 
  313 int
  314 nlmsvc_decode_shareargs(struct svc_rqst *rqstp, u32 *p, nlm_args *argp)
  315 {
  316         struct nlm_lock *lock = &argp->lock;
  317 
  318         memset(lock, 0, sizeof(*lock));
  319         locks_init_lock(&lock->fl);
  320         lock->fl.fl_pid = ~(u32) 0;
  321 
  322         if (!(p = nlm_decode_cookie(p, &argp->cookie))
  323          || !(p = xdr_decode_string_inplace(p, &lock->caller,
  324                                             &lock->len, NLM_MAXSTRLEN))
  325          || !(p = nlm_decode_fh(p, &lock->fh))
  326          || !(p = nlm_decode_oh(p, &lock->oh)))
  327                 return 0;
  328         argp->fsm_mode = ntohl(*p++);
  329         argp->fsm_access = ntohl(*p++);
  330         return xdr_argsize_check(rqstp, p);
  331 }
  332 
  333 int
  334 nlmsvc_encode_shareres(struct svc_rqst *rqstp, u32 *p, struct nlm_res *resp)
  335 {
  336         if (!(p = nlm_encode_cookie(p, &resp->cookie)))
  337                 return 0;
  338         *p++ = resp->status;
  339         *p++ = xdr_zero;                /* sequence argument */
  340         return xdr_ressize_check(rqstp, p);
  341 }
  342 
  343 int
  344 nlmsvc_encode_res(struct svc_rqst *rqstp, u32 *p, struct nlm_res *resp)
  345 {
  346         if (!(p = nlm_encode_cookie(p, &resp->cookie)))
  347                 return 0;
  348         *p++ = resp->status;
  349         return xdr_ressize_check(rqstp, p);
  350 }
  351 
  352 int
  353 nlmsvc_decode_notify(struct svc_rqst *rqstp, u32 *p, struct nlm_args *argp)
  354 {
  355         struct nlm_lock *lock = &argp->lock;
  356 
  357         if (!(p = xdr_decode_string_inplace(p, &lock->caller,
  358                                             &lock->len, NLM_MAXSTRLEN)))
  359                 return 0;
  360         argp->state = ntohl(*p++);
  361         return xdr_argsize_check(rqstp, p);
  362 }
  363 
  364 int
  365 nlmsvc_decode_reboot(struct svc_rqst *rqstp, u32 *p, struct nlm_reboot *argp)
  366 {
  367         if (!(p = xdr_decode_string_inplace(p, &argp->mon, &argp->len, SM_MAXSTRLEN)))
  368                 return 0;
  369         argp->state = ntohl(*p++);
  370         /* Preserve the address in network byte order */
  371         argp->addr = *p++;
  372         return xdr_argsize_check(rqstp, p);
  373 }
  374 
  375 int
  376 nlmsvc_decode_res(struct svc_rqst *rqstp, u32 *p, struct nlm_res *resp)
  377 {
  378         if (!(p = nlm_decode_cookie(p, &resp->cookie)))
  379                 return 0;
  380         resp->status = ntohl(*p++);
  381         return xdr_argsize_check(rqstp, p);
  382 }
  383 
  384 int
  385 nlmsvc_decode_void(struct svc_rqst *rqstp, u32 *p, void *dummy)
  386 {
  387         return xdr_argsize_check(rqstp, p);
  388 }
  389 
  390 int
  391 nlmsvc_encode_void(struct svc_rqst *rqstp, u32 *p, void *dummy)
  392 {
  393         return xdr_ressize_check(rqstp, p);
  394 }
  395 
  396 /*
  397  * Now, the client side XDR functions
  398  */
  399 static int
  400 nlmclt_encode_void(struct rpc_rqst *req, u32 *p, void *ptr)
  401 {
  402         req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
  403         return 0;
  404 }
  405 
  406 static int
  407 nlmclt_decode_void(struct rpc_rqst *req, u32 *p, void *ptr)
  408 {
  409         return 0;
  410 }
  411 
  412 static int
  413 nlmclt_encode_testargs(struct rpc_rqst *req, u32 *p, nlm_args *argp)
  414 {
  415         struct nlm_lock *lock = &argp->lock;
  416 
  417         if (!(p = nlm_encode_cookie(p, &argp->cookie)))
  418                 return -EIO;
  419         *p++ = (lock->fl.fl_type == F_WRLCK)? xdr_one : xdr_zero;
  420         if (!(p = nlm_encode_lock(p, lock)))
  421                 return -EIO;
  422         req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
  423         return 0;
  424 }
  425 
  426 static int
  427 nlmclt_decode_testres(struct rpc_rqst *req, u32 *p, struct nlm_res *resp)
  428 {
  429         if (!(p = nlm_decode_cookie(p, &resp->cookie)))
  430                 return -EIO;
  431         resp->status = ntohl(*p++);
  432         if (resp->status == NLM_LCK_DENIED) {
  433                 struct file_lock        *fl = &resp->lock.fl;
  434                 u32                     excl;
  435                 s32                     start, len, end;
  436 
  437                 memset(&resp->lock, 0, sizeof(resp->lock));
  438                 locks_init_lock(fl);
  439                 excl = ntohl(*p++);
  440                 fl->fl_pid = ntohl(*p++);
  441                 if (!(p = nlm_decode_oh(p, &resp->lock.oh)))
  442                         return -EIO;
  443 
  444                 fl->fl_flags = FL_POSIX;
  445                 fl->fl_type  = excl? F_WRLCK : F_RDLCK;
  446                 start = ntohl(*p++);
  447                 len = ntohl(*p++);
  448                 end = start + len - 1;
  449 
  450                 fl->fl_start = s32_to_loff_t(start);
  451                 if (len == 0 || end < 0)
  452                         fl->fl_end = OFFSET_MAX;
  453                 else
  454                         fl->fl_end = s32_to_loff_t(end);
  455         }
  456         return 0;
  457 }
  458 
  459 
  460 static int
  461 nlmclt_encode_lockargs(struct rpc_rqst *req, u32 *p, nlm_args *argp)
  462 {
  463         struct nlm_lock *lock = &argp->lock;
  464 
  465         if (!(p = nlm_encode_cookie(p, &argp->cookie)))
  466                 return -EIO;
  467         *p++ = argp->block? xdr_one : xdr_zero;
  468         *p++ = (lock->fl.fl_type == F_WRLCK)? xdr_one : xdr_zero;
  469         if (!(p = nlm_encode_lock(p, lock)))
  470                 return -EIO;
  471         *p++ = argp->reclaim? xdr_one : xdr_zero;
  472         *p++ = htonl(argp->state);
  473         req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
  474         return 0;
  475 }
  476 
  477 static int
  478 nlmclt_encode_cancargs(struct rpc_rqst *req, u32 *p, nlm_args *argp)
  479 {
  480         struct nlm_lock *lock = &argp->lock;
  481 
  482         if (!(p = nlm_encode_cookie(p, &argp->cookie)))
  483                 return -EIO;
  484         *p++ = argp->block? xdr_one : xdr_zero;
  485         *p++ = (lock->fl.fl_type == F_WRLCK)? xdr_one : xdr_zero;
  486         if (!(p = nlm_encode_lock(p, lock)))
  487                 return -EIO;
  488         req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
  489         return 0;
  490 }
  491 
  492 static int
  493 nlmclt_encode_unlockargs(struct rpc_rqst *req, u32 *p, nlm_args *argp)
  494 {
  495         struct nlm_lock *lock = &argp->lock;
  496 
  497         if (!(p = nlm_encode_cookie(p, &argp->cookie)))
  498                 return -EIO;
  499         if (!(p = nlm_encode_lock(p, lock)))
  500                 return -EIO;
  501         req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
  502         return 0;
  503 }
  504 
  505 static int
  506 nlmclt_encode_res(struct rpc_rqst *req, u32 *p, struct nlm_res *resp)
  507 {
  508         if (!(p = nlm_encode_cookie(p, &resp->cookie)))
  509                 return -EIO;
  510         *p++ = resp->status;
  511         req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
  512         return 0;
  513 }
  514 
  515 static int
  516 nlmclt_encode_testres(struct rpc_rqst *req, u32 *p, struct nlm_res *resp)
  517 {
  518         if (!(p = nlm_encode_testres(p, resp)))
  519                 return -EIO;
  520         req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
  521         return 0;
  522 }
  523 
  524 static int
  525 nlmclt_decode_res(struct rpc_rqst *req, u32 *p, struct nlm_res *resp)
  526 {
  527         if (!(p = nlm_decode_cookie(p, &resp->cookie)))
  528                 return -EIO;
  529         resp->status = ntohl(*p++);
  530         return 0;
  531 }
  532 
  533 /*
  534  * Buffer requirements for NLM
  535  */
  536 #define NLM_void_sz             0
  537 #define NLM_cookie_sz           3       /* 1 len , 2 data */
  538 #define NLM_caller_sz           1+QUADLEN(sizeof(system_utsname.nodename))
  539 #define NLM_netobj_sz           1+QUADLEN(XDR_MAX_NETOBJ)
  540 /* #define NLM_owner_sz         1+QUADLEN(NLM_MAXOWNER) */
  541 #define NLM_fhandle_sz          1+QUADLEN(NFS2_FHSIZE)
  542 #define NLM_lock_sz             3+NLM_caller_sz+NLM_netobj_sz+NLM_fhandle_sz
  543 #define NLM_holder_sz           4+NLM_netobj_sz
  544 
  545 #define NLM_testargs_sz         NLM_cookie_sz+1+NLM_lock_sz
  546 #define NLM_lockargs_sz         NLM_cookie_sz+4+NLM_lock_sz
  547 #define NLM_cancargs_sz         NLM_cookie_sz+2+NLM_lock_sz
  548 #define NLM_unlockargs_sz       NLM_cookie_sz+NLM_lock_sz
  549 
  550 #define NLM_testres_sz          NLM_cookie_sz+1+NLM_holder_sz
  551 #define NLM_res_sz              NLM_cookie_sz+1
  552 #define NLM_norep_sz            0
  553 
  554 #ifndef MAX
  555 # define MAX(a, b)              (((a) > (b))? (a) : (b))
  556 #endif
  557 
  558 /*
  559  * For NLM, a void procedure really returns nothing
  560  */
  561 #define nlmclt_decode_norep     NULL
  562 
  563 #define PROC(proc, argtype, restype)    \
  564     { .p_procname  = "nlm_" #proc,                                      \
  565       .p_encode    = (kxdrproc_t) nlmclt_encode_##argtype,              \
  566       .p_decode    = (kxdrproc_t) nlmclt_decode_##restype,              \
  567       .p_bufsiz    = MAX(NLM_##argtype##_sz, NLM_##restype##_sz) << 2   \
  568     }
  569 
  570 static struct rpc_procinfo      nlm_procedures[] = {
  571     PROC(null,          void,           void),
  572     PROC(test,          testargs,       testres),
  573     PROC(lock,          lockargs,       res),
  574     PROC(canc,          cancargs,       res),
  575     PROC(unlock,        unlockargs,     res),
  576     PROC(granted,       testargs,       res),
  577     PROC(test_msg,      testargs,       norep),
  578     PROC(lock_msg,      lockargs,       norep),
  579     PROC(canc_msg,      cancargs,       norep),
  580     PROC(unlock_msg,    unlockargs,     norep),
  581     PROC(granted_msg,   testargs,       norep),
  582     PROC(test_res,      testres,        norep),
  583     PROC(lock_res,      res,            norep),
  584     PROC(canc_res,      res,            norep),
  585     PROC(unlock_res,    res,            norep),
  586     PROC(granted_res,   res,            norep),
  587     PROC(undef,         void,           void),
  588     PROC(undef,         void,           void),
  589     PROC(undef,         void,           void),
  590     PROC(undef,         void,           void),
  591 #ifdef NLMCLNT_SUPPORT_SHARES
  592     PROC(share,         shareargs,      shareres),
  593     PROC(unshare,       shareargs,      shareres),
  594     PROC(nm_lock,       lockargs,       res),
  595     PROC(free_all,      notify,         void),
  596 #else
  597     PROC(undef,         void,           void),
  598     PROC(undef,         void,           void),
  599     PROC(undef,         void,           void),
  600     PROC(undef,         void,           void),
  601 #endif
  602 };
  603 
  604 static struct rpc_version       nlm_version1 = {
  605         1, 16, nlm_procedures,
  606 };
  607 
  608 static struct rpc_version       nlm_version3 = {
  609         3, 24, nlm_procedures,
  610 };
  611 
  612 #ifdef  CONFIG_LOCKD_V4
  613 extern struct rpc_version nlm_version4;
  614 #endif
  615 
  616 static struct rpc_version *     nlm_versions[] = {
  617         NULL,
  618         &nlm_version1,
  619         NULL,
  620         &nlm_version3,
  621 #ifdef  CONFIG_LOCKD_V4
  622         &nlm_version4,
  623 #endif
  624 };
  625 
  626 static struct rpc_stat          nlm_stats;
  627 
  628 struct rpc_program              nlm_program = {
  629         "lockd",
  630         NLM_PROGRAM,
  631         sizeof(nlm_versions) / sizeof(nlm_versions[0]),
  632         nlm_versions,
  633         &nlm_stats,
  634 };
  635 
  636 #ifdef LOCKD_DEBUG
  637 char *
  638 nlm_procname(u32 proc)
  639 {
  640         if (proc < sizeof(nlm_procedures)/sizeof(nlm_procedures[0]))
  641                 return nlm_procedures[proc].p_procname;
  642         return "unknown";
  643 }
  644 #endif
  645 

Cache object: 8cb305ad660f31f762a26bc32da63b99


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]


This page is part of the FreeBSD/Linux Linux Kernel Cross-Reference, and was automatically generated using a modified version of the LXR engine.