summaryrefslogtreecommitdiff
path: root/ANDROID_3.4.5/fs/lockd/xdr.c
diff options
context:
space:
mode:
Diffstat (limited to 'ANDROID_3.4.5/fs/lockd/xdr.c')
-rw-r--r--ANDROID_3.4.5/fs/lockd/xdr.c343
1 files changed, 0 insertions, 343 deletions
diff --git a/ANDROID_3.4.5/fs/lockd/xdr.c b/ANDROID_3.4.5/fs/lockd/xdr.c
deleted file mode 100644
index 964666c6..00000000
--- a/ANDROID_3.4.5/fs/lockd/xdr.c
+++ /dev/null
@@ -1,343 +0,0 @@
-/*
- * linux/fs/lockd/xdr.c
- *
- * XDR support for lockd and the lock client.
- *
- * Copyright (C) 1995, 1996 Olaf Kirch <okir@monad.swb.de>
- */
-
-#include <linux/types.h>
-#include <linux/sched.h>
-#include <linux/nfs.h>
-
-#include <linux/sunrpc/xdr.h>
-#include <linux/sunrpc/clnt.h>
-#include <linux/sunrpc/svc.h>
-#include <linux/sunrpc/stats.h>
-#include <linux/lockd/lockd.h>
-
-#define NLMDBG_FACILITY NLMDBG_XDR
-
-
-static inline loff_t
-s32_to_loff_t(__s32 offset)
-{
- return (loff_t)offset;
-}
-
-static inline __s32
-loff_t_to_s32(loff_t offset)
-{
- __s32 res;
- if (offset >= NLM_OFFSET_MAX)
- res = NLM_OFFSET_MAX;
- else if (offset <= -NLM_OFFSET_MAX)
- res = -NLM_OFFSET_MAX;
- else
- res = offset;
- return res;
-}
-
-/*
- * XDR functions for basic NLM types
- */
-static __be32 *nlm_decode_cookie(__be32 *p, struct nlm_cookie *c)
-{
- unsigned int len;
-
- len = ntohl(*p++);
-
- if(len==0)
- {
- c->len=4;
- memset(c->data, 0, 4); /* hockeypux brain damage */
- }
- else if(len<=NLM_MAXCOOKIELEN)
- {
- c->len=len;
- memcpy(c->data, p, len);
- p+=XDR_QUADLEN(len);
- }
- else
- {
- dprintk("lockd: bad cookie size %d (only cookies under "
- "%d bytes are supported.)\n",
- len, NLM_MAXCOOKIELEN);
- return NULL;
- }
- return p;
-}
-
-static inline __be32 *
-nlm_encode_cookie(__be32 *p, struct nlm_cookie *c)
-{
- *p++ = htonl(c->len);
- memcpy(p, c->data, c->len);
- p+=XDR_QUADLEN(c->len);
- return p;
-}
-
-static __be32 *
-nlm_decode_fh(__be32 *p, struct nfs_fh *f)
-{
- unsigned int len;
-
- if ((len = ntohl(*p++)) != NFS2_FHSIZE) {
- dprintk("lockd: bad fhandle size %d (should be %d)\n",
- len, NFS2_FHSIZE);
- return NULL;
- }
- f->size = NFS2_FHSIZE;
- memset(f->data, 0, sizeof(f->data));
- memcpy(f->data, p, NFS2_FHSIZE);
- return p + XDR_QUADLEN(NFS2_FHSIZE);
-}
-
-static inline __be32 *
-nlm_encode_fh(__be32 *p, struct nfs_fh *f)
-{
- *p++ = htonl(NFS2_FHSIZE);
- memcpy(p, f->data, NFS2_FHSIZE);
- return p + XDR_QUADLEN(NFS2_FHSIZE);
-}
-
-/*
- * Encode and decode owner handle
- */
-static inline __be32 *
-nlm_decode_oh(__be32 *p, struct xdr_netobj *oh)
-{
- return xdr_decode_netobj(p, oh);
-}
-
-static inline __be32 *
-nlm_encode_oh(__be32 *p, struct xdr_netobj *oh)
-{
- return xdr_encode_netobj(p, oh);
-}
-
-static __be32 *
-nlm_decode_lock(__be32 *p, struct nlm_lock *lock)
-{
- struct file_lock *fl = &lock->fl;
- s32 start, len, end;
-
- if (!(p = xdr_decode_string_inplace(p, &lock->caller,
- &lock->len,
- NLM_MAXSTRLEN))
- || !(p = nlm_decode_fh(p, &lock->fh))
- || !(p = nlm_decode_oh(p, &lock->oh)))
- return NULL;
- lock->svid = ntohl(*p++);
-
- locks_init_lock(fl);
- fl->fl_owner = current->files;
- fl->fl_pid = (pid_t)lock->svid;
- fl->fl_flags = FL_POSIX;
- fl->fl_type = F_RDLCK; /* as good as anything else */
- start = ntohl(*p++);
- len = ntohl(*p++);
- end = start + len - 1;
-
- fl->fl_start = s32_to_loff_t(start);
-
- if (len == 0 || end < 0)
- fl->fl_end = OFFSET_MAX;
- else
- fl->fl_end = s32_to_loff_t(end);
- return p;
-}
-
-/*
- * Encode result of a TEST/TEST_MSG call
- */
-static __be32 *
-nlm_encode_testres(__be32 *p, struct nlm_res *resp)
-{
- s32 start, len;
-
- if (!(p = nlm_encode_cookie(p, &resp->cookie)))
- return NULL;
- *p++ = resp->status;
-
- if (resp->status == nlm_lck_denied) {
- struct file_lock *fl = &resp->lock.fl;
-
- *p++ = (fl->fl_type == F_RDLCK)? xdr_zero : xdr_one;
- *p++ = htonl(resp->lock.svid);
-
- /* Encode owner handle. */
- if (!(p = xdr_encode_netobj(p, &resp->lock.oh)))
- return NULL;
-
- start = loff_t_to_s32(fl->fl_start);
- if (fl->fl_end == OFFSET_MAX)
- len = 0;
- else
- len = loff_t_to_s32(fl->fl_end - fl->fl_start + 1);
-
- *p++ = htonl(start);
- *p++ = htonl(len);
- }
-
- return p;
-}
-
-
-/*
- * First, the server side XDR functions
- */
-int
-nlmsvc_decode_testargs(struct svc_rqst *rqstp, __be32 *p, nlm_args *argp)
-{
- u32 exclusive;
-
- if (!(p = nlm_decode_cookie(p, &argp->cookie)))
- return 0;
-
- exclusive = ntohl(*p++);
- if (!(p = nlm_decode_lock(p, &argp->lock)))
- return 0;
- if (exclusive)
- argp->lock.fl.fl_type = F_WRLCK;
-
- return xdr_argsize_check(rqstp, p);
-}
-
-int
-nlmsvc_encode_testres(struct svc_rqst *rqstp, __be32 *p, struct nlm_res *resp)
-{
- if (!(p = nlm_encode_testres(p, resp)))
- return 0;
- return xdr_ressize_check(rqstp, p);
-}
-
-int
-nlmsvc_decode_lockargs(struct svc_rqst *rqstp, __be32 *p, nlm_args *argp)
-{
- u32 exclusive;
-
- if (!(p = nlm_decode_cookie(p, &argp->cookie)))
- return 0;
- argp->block = ntohl(*p++);
- exclusive = ntohl(*p++);
- if (!(p = nlm_decode_lock(p, &argp->lock)))
- return 0;
- if (exclusive)
- argp->lock.fl.fl_type = F_WRLCK;
- argp->reclaim = ntohl(*p++);
- argp->state = ntohl(*p++);
- argp->monitor = 1; /* monitor client by default */
-
- return xdr_argsize_check(rqstp, p);
-}
-
-int
-nlmsvc_decode_cancargs(struct svc_rqst *rqstp, __be32 *p, nlm_args *argp)
-{
- u32 exclusive;
-
- if (!(p = nlm_decode_cookie(p, &argp->cookie)))
- return 0;
- argp->block = ntohl(*p++);
- exclusive = ntohl(*p++);
- if (!(p = nlm_decode_lock(p, &argp->lock)))
- return 0;
- if (exclusive)
- argp->lock.fl.fl_type = F_WRLCK;
- return xdr_argsize_check(rqstp, p);
-}
-
-int
-nlmsvc_decode_unlockargs(struct svc_rqst *rqstp, __be32 *p, nlm_args *argp)
-{
- if (!(p = nlm_decode_cookie(p, &argp->cookie))
- || !(p = nlm_decode_lock(p, &argp->lock)))
- return 0;
- argp->lock.fl.fl_type = F_UNLCK;
- return xdr_argsize_check(rqstp, p);
-}
-
-int
-nlmsvc_decode_shareargs(struct svc_rqst *rqstp, __be32 *p, nlm_args *argp)
-{
- struct nlm_lock *lock = &argp->lock;
-
- memset(lock, 0, sizeof(*lock));
- locks_init_lock(&lock->fl);
- lock->svid = ~(u32) 0;
- lock->fl.fl_pid = (pid_t)lock->svid;
-
- if (!(p = nlm_decode_cookie(p, &argp->cookie))
- || !(p = xdr_decode_string_inplace(p, &lock->caller,
- &lock->len, NLM_MAXSTRLEN))
- || !(p = nlm_decode_fh(p, &lock->fh))
- || !(p = nlm_decode_oh(p, &lock->oh)))
- return 0;
- argp->fsm_mode = ntohl(*p++);
- argp->fsm_access = ntohl(*p++);
- return xdr_argsize_check(rqstp, p);
-}
-
-int
-nlmsvc_encode_shareres(struct svc_rqst *rqstp, __be32 *p, struct nlm_res *resp)
-{
- if (!(p = nlm_encode_cookie(p, &resp->cookie)))
- return 0;
- *p++ = resp->status;
- *p++ = xdr_zero; /* sequence argument */
- return xdr_ressize_check(rqstp, p);
-}
-
-int
-nlmsvc_encode_res(struct svc_rqst *rqstp, __be32 *p, struct nlm_res *resp)
-{
- if (!(p = nlm_encode_cookie(p, &resp->cookie)))
- return 0;
- *p++ = resp->status;
- return xdr_ressize_check(rqstp, p);
-}
-
-int
-nlmsvc_decode_notify(struct svc_rqst *rqstp, __be32 *p, struct nlm_args *argp)
-{
- struct nlm_lock *lock = &argp->lock;
-
- if (!(p = xdr_decode_string_inplace(p, &lock->caller,
- &lock->len, NLM_MAXSTRLEN)))
- return 0;
- argp->state = ntohl(*p++);
- return xdr_argsize_check(rqstp, p);
-}
-
-int
-nlmsvc_decode_reboot(struct svc_rqst *rqstp, __be32 *p, struct nlm_reboot *argp)
-{
- if (!(p = xdr_decode_string_inplace(p, &argp->mon, &argp->len, SM_MAXSTRLEN)))
- return 0;
- argp->state = ntohl(*p++);
- memcpy(&argp->priv.data, p, sizeof(argp->priv.data));
- p += XDR_QUADLEN(SM_PRIV_SIZE);
- return xdr_argsize_check(rqstp, p);
-}
-
-int
-nlmsvc_decode_res(struct svc_rqst *rqstp, __be32 *p, struct nlm_res *resp)
-{
- if (!(p = nlm_decode_cookie(p, &resp->cookie)))
- return 0;
- resp->status = *p++;
- return xdr_argsize_check(rqstp, p);
-}
-
-int
-nlmsvc_decode_void(struct svc_rqst *rqstp, __be32 *p, void *dummy)
-{
- return xdr_argsize_check(rqstp, p);
-}
-
-int
-nlmsvc_encode_void(struct svc_rqst *rqstp, __be32 *p, void *dummy)
-{
- return xdr_ressize_check(rqstp, p);
-}
generated by cgit (git 2.34.1) at 2024-12-20 13:56:18 +0000