Release 4.15 fs/lockd/xdr.c
// SPDX-License-Identifier: GPL-2.0
/*
* 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>
#include <uapi/linux/nfs2.h>
#define NLMDBG_FACILITY NLMDBG_XDR
static inline loff_t
s32_to_loff_t(__s32 offset)
{
return (loff_t)offset;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Linus Torvalds (pre-git) | 16 | 100.00% | 1 | 100.00% |
| Total | 16 | 100.00% | 1 | 100.00% |
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;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Linus Torvalds (pre-git) | 44 | 100.00% | 1 | 100.00% |
| Total | 44 | 100.00% | 1 | 100.00% |
/*
* 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;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Linus Torvalds (pre-git) | 96 | 89.72% | 2 | 40.00% |
| Ed Schouten | 6 | 5.61% | 1 | 20.00% |
| Chuck Lever | 3 | 2.80% | 1 | 20.00% |
| Al Viro | 2 | 1.87% | 1 | 20.00% |
| Total | 107 | 100.00% | 5 | 100.00% |
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;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Linus Torvalds (pre-git) | 48 | 90.57% | 2 | 50.00% |
| Ed Schouten | 3 | 5.66% | 1 | 25.00% |
| Al Viro | 2 | 3.77% | 1 | 25.00% |
| Total | 53 | 100.00% | 4 | 100.00% |
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);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Linus Torvalds (pre-git) | 70 | 77.78% | 2 | 33.33% |
| Linus Torvalds | 16 | 17.78% | 1 | 16.67% |
| Al Viro | 2 | 2.22% | 1 | 16.67% |
| Chuck Lever | 1 | 1.11% | 1 | 16.67% |
| Ed Schouten | 1 | 1.11% | 1 | 16.67% |
| Total | 90 | 100.00% | 6 | 100.00% |
/*
* Encode and decode owner handle
*/
static inline __be32 *
nlm_decode_oh(__be32 *p, struct xdr_netobj *oh)
{
return xdr_decode_netobj(p, oh);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Linus Torvalds (pre-git) | 23 | 92.00% | 1 | 50.00% |
| Al Viro | 2 | 8.00% | 1 | 50.00% |
| Total | 25 | 100.00% | 2 | 100.00% |
static inline __be32 *
nlm_encode_oh(__be32 *p, struct xdr_netobj *oh)
{
return xdr_encode_netobj(p, oh);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Linus Torvalds (pre-git) | 23 | 92.00% | 1 | 50.00% |
| Al Viro | 2 | 8.00% | 1 | 50.00% |
| Total | 25 | 100.00% | 2 | 100.00% |
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;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Linus Torvalds (pre-git) | 180 | 89.11% | 4 | 57.14% |
| Trond Myklebust | 17 | 8.42% | 1 | 14.29% |
| Linus Torvalds | 3 | 1.49% | 1 | 14.29% |
| Al Viro | 2 | 0.99% | 1 | 14.29% |
| Total | 202 | 100.00% | 7 | 100.00% |
/*
* 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;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Linus Torvalds (pre-git) | 173 | 95.58% | 3 | 50.00% |
| Trond Myklebust | 4 | 2.21% | 1 | 16.67% |
| Mika Kukkonen | 2 | 1.10% | 1 | 16.67% |
| Al Viro | 2 | 1.10% | 1 | 16.67% |
| Total | 181 | 100.00% | 6 | 100.00% |
/*
* First, the server side XDR functions
*/
int
nlmsvc_decode_testargs(struct svc_rqst *rqstp, __be32 *p)
{
struct nlm_args *argp = rqstp->rq_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);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Linus Torvalds (pre-git) | 88 | 90.72% | 1 | 33.33% |
| Christoph Hellwig | 8 | 8.25% | 1 | 33.33% |
| Al Viro | 1 | 1.03% | 1 | 33.33% |
| Total | 97 | 100.00% | 3 | 100.00% |
int
nlmsvc_encode_testres(struct svc_rqst *rqstp, __be32 *p)
{
struct nlm_res *resp = rqstp->rq_resp;
if (!(p = nlm_encode_testres(p, resp)))
return 0;
return xdr_ressize_check(rqstp, p);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Linus Torvalds (pre-git) | 40 | 83.33% | 1 | 33.33% |
| Christoph Hellwig | 7 | 14.58% | 1 | 33.33% |
| Al Viro | 1 | 2.08% | 1 | 33.33% |
| Total | 48 | 100.00% | 3 | 100.00% |
int
nlmsvc_decode_lockargs(struct svc_rqst *rqstp, __be32 *p)
{
struct nlm_args *argp = rqstp->rq_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);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Linus Torvalds (pre-git) | 128 | 93.43% | 1 | 33.33% |
| Christoph Hellwig | 8 | 5.84% | 1 | 33.33% |
| Al Viro | 1 | 0.73% | 1 | 33.33% |
| Total | 137 | 100.00% | 3 | 100.00% |
int
nlmsvc_decode_cancargs(struct svc_rqst *rqstp, __be32 *p)
{
struct nlm_args *argp = rqstp->rq_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);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Linus Torvalds (pre-git) | 99 | 91.67% | 1 | 33.33% |
| Christoph Hellwig | 8 | 7.41% | 1 | 33.33% |
| Al Viro | 1 | 0.93% | 1 | 33.33% |
| Total | 108 | 100.00% | 3 | 100.00% |
int
nlmsvc_decode_unlockargs(struct svc_rqst *rqstp, __be32 *p)
{
struct nlm_args *argp = rqstp->rq_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);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Linus Torvalds (pre-git) | 67 | 88.16% | 1 | 33.33% |
| Christoph Hellwig | 8 | 10.53% | 1 | 33.33% |
| Al Viro | 1 | 1.32% | 1 | 33.33% |
| Total | 76 | 100.00% | 3 | 100.00% |
int
nlmsvc_decode_shareargs(struct svc_rqst *rqstp, __be32 *p)
{
struct nlm_args *argp = rqstp->rq_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);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Linus Torvalds (pre-git) | 153 | 85.47% | 2 | 33.33% |
| Trond Myklebust | 14 | 7.82% | 1 | 16.67% |
| Christoph Hellwig | 8 | 4.47% | 1 | 16.67% |
| Linus Torvalds | 3 | 1.68% | 1 | 16.67% |
| Al Viro | 1 | 0.56% | 1 | 16.67% |
| Total | 179 | 100.00% | 6 | 100.00% |
int
nlmsvc_encode_shareres(struct svc_rqst *rqstp, __be32 *p)
{
struct nlm_res *resp = rqstp->rq_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);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Linus Torvalds (pre-git) | 58 | 87.88% | 2 | 50.00% |
| Christoph Hellwig | 7 | 10.61% | 1 | 25.00% |
| Al Viro | 1 | 1.52% | 1 | 25.00% |
| Total | 66 | 100.00% | 4 | 100.00% |
int
nlmsvc_encode_res(struct svc_rqst *rqstp, __be32 *p)
{
struct nlm_res *resp = rqstp->rq_resp;
if (!(p = nlm_encode_cookie(p, &resp->cookie)))
return 0;
*p++ = resp->status;
return xdr_ressize_check(rqstp, p);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Linus Torvalds (pre-git) | 51 | 86.44% | 2 | 50.00% |
| Christoph Hellwig | 7 | 11.86% | 1 | 25.00% |
| Al Viro | 1 | 1.69% | 1 | 25.00% |
| Total | 59 | 100.00% | 4 | 100.00% |
int
nlmsvc_decode_notify(struct svc_rqst *rqstp, __be32 *p)
{
struct nlm_args *argp = rqstp->rq_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);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Linus Torvalds (pre-git) | 68 | 86.08% | 1 | 25.00% |
| Christoph Hellwig | 7 | 8.86% | 1 | 25.00% |
| Linus Torvalds | 3 | 3.80% | 1 | 25.00% |
| Al Viro | 1 | 1.27% | 1 | 25.00% |
| Total | 79 | 100.00% | 4 | 100.00% |
int
nlmsvc_decode_reboot(struct svc_rqst *rqstp, __be32 *p)
{
struct nlm_reboot *argp = rqstp->rq_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);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Linus Torvalds (pre-git) | 64 | 65.98% | 1 | 20.00% |
| Chuck Lever | 24 | 24.74% | 1 | 20.00% |
| Christoph Hellwig | 7 | 7.22% | 1 | 20.00% |
| Al Viro | 1 | 1.03% | 1 | 20.00% |
| Linus Torvalds | 1 | 1.03% | 1 | 20.00% |
| Total | 97 | 100.00% | 5 | 100.00% |
int
nlmsvc_decode_res(struct svc_rqst *rqstp, __be32 *p)
{
struct nlm_res *resp = rqstp->rq_argp;
if (!(p = nlm_decode_cookie(p, &resp->cookie)))
return 0;
resp->status = *p++;
return xdr_argsize_check(rqstp, p);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Linus Torvalds (pre-git) | 51 | 86.44% | 1 | 33.33% |
| Christoph Hellwig | 7 | 11.86% | 1 | 33.33% |
| Al Viro | 1 | 1.69% | 1 | 33.33% |
| Total | 59 | 100.00% | 3 | 100.00% |
int
nlmsvc_decode_void(struct svc_rqst *rqstp, __be32 *p)
{
return xdr_argsize_check(rqstp, p);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Linus Torvalds (pre-git) | 21 | 95.45% | 1 | 50.00% |
| Al Viro | 1 | 4.55% | 1 | 50.00% |
| Total | 22 | 100.00% | 2 | 100.00% |
int
nlmsvc_encode_void(struct svc_rqst *rqstp, __be32 *p)
{
return xdr_ressize_check(rqstp, p);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Linus Torvalds (pre-git) | 21 | 95.45% | 1 | 50.00% |
| Al Viro | 1 | 4.55% | 1 | 50.00% |
| Total | 22 | 100.00% | 2 | 100.00% |
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Linus Torvalds (pre-git) | 1615 | 88.30% | 5 | 29.41% |
| Christoph Hellwig | 85 | 4.65% | 3 | 17.65% |
| Trond Myklebust | 35 | 1.91% | 1 | 5.88% |
| Chuck Lever | 28 | 1.53% | 2 | 11.76% |
| Al Viro | 27 | 1.48% | 1 | 5.88% |
| Linus Torvalds | 26 | 1.42% | 2 | 11.76% |
| Ed Schouten | 10 | 0.55% | 1 | 5.88% |
| Mika Kukkonen | 2 | 0.11% | 1 | 5.88% |
| Greg Kroah-Hartman | 1 | 0.05% | 1 | 5.88% |
| Total | 1829 | 100.00% | 17 | 100.00% |
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