#include <linux/unistd.h>
#include <linux/slab.h>
+#include <linux/sunrpc/clnt.h>
#include <linux/sunrpc/svc.h>
#include <linux/nfsd/nfsd.h>
#include <linux/nfsd/cache.h>
#define NFSDDBG_FACILITY NFSDDBG_PROC
-static int
+static __be32
nfsd_proc_null(struct svc_rqst *rqstp, void *argp, void *resp)
{
return nfs_ok;
}
-static int
-nfsd_return_attrs(int err, struct nfsd_attrstat *resp)
+static __be32
+nfsd_return_attrs(__be32 err, struct nfsd_attrstat *resp)
{
if (err) return err;
- return nfserrno(vfs_getattr(resp->fh.fh_export->ex_mnt,
+ return nfserrno(vfs_getattr(resp->fh.fh_export->ex_path.mnt,
resp->fh.fh_dentry,
&resp->stat));
}
-static int
-nfsd_return_dirop(int err, struct nfsd_diropres *resp)
+static __be32
+nfsd_return_dirop(__be32 err, struct nfsd_diropres *resp)
{
if (err) return err;
- return nfserrno(vfs_getattr(resp->fh.fh_export->ex_mnt,
+ return nfserrno(vfs_getattr(resp->fh.fh_export->ex_path.mnt,
resp->fh.fh_dentry,
&resp->stat));
}
* Get a file's attributes
* N.B. After this call resp->fh needs an fh_put
*/
-static int
+static __be32
nfsd_proc_getattr(struct svc_rqst *rqstp, struct nfsd_fhandle *argp,
struct nfsd_attrstat *resp)
{
- int nfserr;
+ __be32 nfserr;
dprintk("nfsd: GETATTR %s\n", SVCFH_fmt(&argp->fh));
fh_copy(&resp->fh, &argp->fh);
- nfserr = fh_verify(rqstp, &resp->fh, 0, MAY_NOP);
+ nfserr = fh_verify(rqstp, &resp->fh, 0,
+ NFSD_MAY_NOP | NFSD_MAY_BYPASS_GSS_ON_ROOT);
return nfsd_return_attrs(nfserr, resp);
}
* Set a file's attributes
* N.B. After this call resp->fh needs an fh_put
*/
-static int
+static __be32
nfsd_proc_setattr(struct svc_rqst *rqstp, struct nfsd_sattrargs *argp,
struct nfsd_attrstat *resp)
{
- int nfserr;
+ __be32 nfserr;
dprintk("nfsd: SETATTR %s, valid=%x, size=%ld\n",
SVCFH_fmt(&argp->fh),
argp->attrs.ia_valid, (long) argp->attrs.ia_size);
* doesn't exist yet.
* N.B. After this call resp->fh needs an fh_put
*/
-static int
+static __be32
nfsd_proc_lookup(struct svc_rqst *rqstp, struct nfsd_diropargs *argp,
struct nfsd_diropres *resp)
{
- int nfserr;
+ __be32 nfserr;
dprintk("nfsd: LOOKUP %s %.*s\n",
SVCFH_fmt(&argp->fh), argp->len, argp->name);
/*
* Read a symlink.
*/
-static int
+static __be32
nfsd_proc_readlink(struct svc_rqst *rqstp, struct nfsd_readlinkargs *argp,
struct nfsd_readlinkres *resp)
{
- int nfserr;
+ __be32 nfserr;
dprintk("nfsd: READLINK %s\n", SVCFH_fmt(&argp->fh));
* Read a portion of a file.
* N.B. After this call resp->fh needs an fh_put
*/
-static int
+static __be32
nfsd_proc_read(struct svc_rqst *rqstp, struct nfsd_readargs *argp,
struct nfsd_readres *resp)
{
- int nfserr;
+ __be32 nfserr;
dprintk("nfsd: READ %s %d bytes at %d\n",
SVCFH_fmt(&argp->fh),
* status, 17 words for fattr, and 1 word for the byte count.
*/
- if (NFSSVC_MAXBLKSIZE < argp->count) {
+ if (NFSSVC_MAXBLKSIZE_V2 < argp->count) {
+ char buf[RPC_MAX_ADDRBUFLEN];
printk(KERN_NOTICE
- "oversized read request from %u.%u.%u.%u:%d (%d bytes)\n",
- NIPQUAD(rqstp->rq_addr.sin_addr.s_addr),
- ntohs(rqstp->rq_addr.sin_port),
+ "oversized read request from %s (%d bytes)\n",
+ svc_print_addr(rqstp, buf, sizeof(buf)),
argp->count);
- argp->count = NFSSVC_MAXBLKSIZE;
+ argp->count = NFSSVC_MAXBLKSIZE_V2;
}
- svc_reserve(rqstp, (19<<2) + argp->count + 4);
+ svc_reserve_auth(rqstp, (19<<2) + argp->count + 4);
resp->count = argp->count;
nfserr = nfsd_read(rqstp, fh_copy(&resp->fh, &argp->fh), NULL,
argp->offset,
- argp->vec, argp->vlen,
+ rqstp->rq_vec, argp->vlen,
&resp->count);
if (nfserr) return nfserr;
- return nfserrno(vfs_getattr(resp->fh.fh_export->ex_mnt,
+ return nfserrno(vfs_getattr(resp->fh.fh_export->ex_path.mnt,
resp->fh.fh_dentry,
&resp->stat));
}
* Write data to a file
* N.B. After this call resp->fh needs an fh_put
*/
-static int
+static __be32
nfsd_proc_write(struct svc_rqst *rqstp, struct nfsd_writeargs *argp,
struct nfsd_attrstat *resp)
{
- int nfserr;
+ __be32 nfserr;
int stable = 1;
+ unsigned long cnt = argp->len;
dprintk("nfsd: WRITE %s %d bytes at %d\n",
SVCFH_fmt(&argp->fh),
nfserr = nfsd_write(rqstp, fh_copy(&resp->fh, &argp->fh), NULL,
argp->offset,
- argp->vec, argp->vlen,
- argp->len,
+ rqstp->rq_vec, argp->vlen,
+ &cnt,
&stable);
return nfsd_return_attrs(nfserr, resp);
}
* and the actual create() call in compliance with VFS protocols.
* N.B. After this call _both_ argp->fh and resp->fh need an fh_put
*/
-static int
+static __be32
nfsd_proc_create(struct svc_rqst *rqstp, struct nfsd_createargs *argp,
struct nfsd_diropres *resp)
{
struct iattr *attr = &argp->attrs;
struct inode *inode;
struct dentry *dchild;
- int nfserr, type, mode;
+ int type, mode;
+ __be32 nfserr;
dev_t rdev = 0, wanted = new_decode_dev(attr->ia_size);
dprintk("nfsd: CREATE %s %.*s\n",
SVCFH_fmt(dirfhp), argp->len, argp->name);
/* First verify the parent file handle */
- nfserr = fh_verify(rqstp, dirfhp, S_IFDIR, MAY_EXEC);
+ nfserr = fh_verify(rqstp, dirfhp, S_IFDIR, NFSD_MAY_EXEC);
if (nfserr)
goto done; /* must fh_put dirfhp even on error */
- /* Check for MAY_WRITE in nfsd_create if necessary */
+ /* Check for NFSD_MAY_WRITE in nfsd_create if necessary */
nfserr = nfserr_acces;
if (!argp->len)
nfserr = nfserr_exist;
if (isdotent(argp->name, argp->len))
goto done;
- fh_lock(dirfhp);
+ fh_lock_nested(dirfhp, I_MUTEX_PARENT);
dchild = lookup_one_len(argp->name, dirfhp->fh_dentry, argp->len);
if (IS_ERR(dchild)) {
nfserr = nfserrno(PTR_ERR(dchild));
* echo thing > device-special-file-or-pipe
* by doing a CREATE with type==0
*/
- nfserr = nfsd_permission(newfhp->fh_export,
+ nfserr = nfsd_permission(rqstp,
+ newfhp->fh_export,
newfhp->fh_dentry,
- MAY_WRITE|MAY_LOCAL_ACCESS);
+ NFSD_MAY_WRITE|NFSD_MAY_LOCAL_ACCESS);
if (nfserr && nfserr != nfserr_rofs)
goto out_unlock;
}
return nfsd_return_dirop(nfserr, resp);
}
-static int
+static __be32
nfsd_proc_remove(struct svc_rqst *rqstp, struct nfsd_diropargs *argp,
void *resp)
{
- int nfserr;
+ __be32 nfserr;
dprintk("nfsd: REMOVE %s %.*s\n", SVCFH_fmt(&argp->fh),
argp->len, argp->name);
return nfserr;
}
-static int
+static __be32
nfsd_proc_rename(struct svc_rqst *rqstp, struct nfsd_renameargs *argp,
void *resp)
{
- int nfserr;
+ __be32 nfserr;
dprintk("nfsd: RENAME %s %.*s -> \n",
SVCFH_fmt(&argp->ffh), argp->flen, argp->fname);
return nfserr;
}
-static int
+static __be32
nfsd_proc_link(struct svc_rqst *rqstp, struct nfsd_linkargs *argp,
void *resp)
{
- int nfserr;
+ __be32 nfserr;
dprintk("nfsd: LINK %s ->\n",
SVCFH_fmt(&argp->ffh));
return nfserr;
}
-static int
+static __be32
nfsd_proc_symlink(struct svc_rqst *rqstp, struct nfsd_symlinkargs *argp,
void *resp)
{
struct svc_fh newfh;
- int nfserr;
+ __be32 nfserr;
dprintk("nfsd: SYMLINK %s %.*s -> %.*s\n",
SVCFH_fmt(&argp->ffh), argp->flen, argp->fname,
* Make directory. This operation is not idempotent.
* N.B. After this call resp->fh needs an fh_put
*/
-static int
+static __be32
nfsd_proc_mkdir(struct svc_rqst *rqstp, struct nfsd_createargs *argp,
struct nfsd_diropres *resp)
{
- int nfserr;
+ __be32 nfserr;
dprintk("nfsd: MKDIR %s %.*s\n", SVCFH_fmt(&argp->fh), argp->len, argp->name);
/*
* Remove a directory
*/
-static int
+static __be32
nfsd_proc_rmdir(struct svc_rqst *rqstp, struct nfsd_diropargs *argp,
void *resp)
{
- int nfserr;
+ __be32 nfserr;
dprintk("nfsd: RMDIR %s %.*s\n", SVCFH_fmt(&argp->fh), argp->len, argp->name);
/*
* Read a portion of a directory.
*/
-static int
+static __be32
nfsd_proc_readdir(struct svc_rqst *rqstp, struct nfsd_readdirargs *argp,
struct nfsd_readdirres *resp)
{
- int nfserr, count;
+ int count;
+ __be32 nfserr;
loff_t offset;
dprintk("nfsd: READDIR %s %d bytes at %d\n",
/*
* Get file system info
*/
-static int
+static __be32
nfsd_proc_statfs(struct svc_rqst * rqstp, struct nfsd_fhandle *argp,
struct nfsd_statfsres *resp)
{
- int nfserr;
+ __be32 nfserr;
dprintk("nfsd: STATFS %s\n", SVCFH_fmt(&argp->fh));
- nfserr = nfsd_statfs(rqstp, &argp->fh, &resp->stats);
+ nfserr = nfsd_statfs(rqstp, &argp->fh, &resp->stats,
+ NFSD_MAY_BYPASS_GSS_ON_ROOT);
fh_put(&argp->fh);
return nfserr;
}
* NFSv2 Server procedures.
* Only the results of non-idempotent operations are cached.
*/
-#define nfsd_proc_none NULL
-#define nfssvc_release_none NULL
struct nfsd_void { int dummy; };
-#define PROC(name, argt, rest, relt, cache, respsize) \
- { (svc_procfunc) nfsd_proc_##name, \
- (kxdrproc_t) nfssvc_decode_##argt, \
- (kxdrproc_t) nfssvc_encode_##rest, \
- (kxdrproc_t) nfssvc_release_##relt, \
- sizeof(struct nfsd_##argt), \
- sizeof(struct nfsd_##rest), \
- 0, \
- cache, \
- respsize, \
- }
-
#define ST 1 /* status */
#define FH 8 /* filehandle */
#define AT 18 /* attributes */
static struct svc_procedure nfsd_procedures2[18] = {
- PROC(null, void, void, none, RC_NOCACHE, ST),
- PROC(getattr, fhandle, attrstat, fhandle, RC_NOCACHE, ST+AT),
- PROC(setattr, sattrargs, attrstat, fhandle, RC_REPLBUFF, ST+AT),
- PROC(none, void, void, none, RC_NOCACHE, ST),
- PROC(lookup, diropargs, diropres, fhandle, RC_NOCACHE, ST+FH+AT),
- PROC(readlink, readlinkargs, readlinkres, none, RC_NOCACHE, ST+1+NFS_MAXPATHLEN/4),
- PROC(read, readargs, readres, fhandle, RC_NOCACHE, ST+AT+1+NFSSVC_MAXBLKSIZE/4),
- PROC(none, void, void, none, RC_NOCACHE, ST),
- PROC(write, writeargs, attrstat, fhandle, RC_REPLBUFF, ST+AT),
- PROC(create, createargs, diropres, fhandle, RC_REPLBUFF, ST+FH+AT),
- PROC(remove, diropargs, void, none, RC_REPLSTAT, ST),
- PROC(rename, renameargs, void, none, RC_REPLSTAT, ST),
- PROC(link, linkargs, void, none, RC_REPLSTAT, ST),
- PROC(symlink, symlinkargs, void, none, RC_REPLSTAT, ST),
- PROC(mkdir, createargs, diropres, fhandle, RC_REPLBUFF, ST+FH+AT),
- PROC(rmdir, diropargs, void, none, RC_REPLSTAT, ST),
- PROC(readdir, readdirargs, readdirres, none, RC_NOCACHE, 0),
- PROC(statfs, fhandle, statfsres, none, RC_NOCACHE, ST+5),
+ [NFSPROC_NULL] = {
+ .pc_func = (svc_procfunc) nfsd_proc_null,
+ .pc_decode = (kxdrproc_t) nfssvc_decode_void,
+ .pc_encode = (kxdrproc_t) nfssvc_encode_void,
+ .pc_argsize = sizeof(struct nfsd_void),
+ .pc_ressize = sizeof(struct nfsd_void),
+ .pc_cachetype = RC_NOCACHE,
+ .pc_xdrressize = ST,
+ },
+ [NFSPROC_GETATTR] = {
+ .pc_func = (svc_procfunc) nfsd_proc_getattr,
+ .pc_decode = (kxdrproc_t) nfssvc_decode_fhandle,
+ .pc_encode = (kxdrproc_t) nfssvc_encode_attrstat,
+ .pc_release = (kxdrproc_t) nfssvc_release_fhandle,
+ .pc_argsize = sizeof(struct nfsd_fhandle),
+ .pc_ressize = sizeof(struct nfsd_attrstat),
+ .pc_cachetype = RC_NOCACHE,
+ .pc_xdrressize = ST+AT,
+ },
+ [NFSPROC_SETATTR] = {
+ .pc_func = (svc_procfunc) nfsd_proc_setattr,
+ .pc_decode = (kxdrproc_t) nfssvc_decode_sattrargs,
+ .pc_encode = (kxdrproc_t) nfssvc_encode_attrstat,
+ .pc_release = (kxdrproc_t) nfssvc_release_fhandle,
+ .pc_argsize = sizeof(struct nfsd_sattrargs),
+ .pc_ressize = sizeof(struct nfsd_attrstat),
+ .pc_cachetype = RC_REPLBUFF,
+ .pc_xdrressize = ST+AT,
+ },
+ [NFSPROC_ROOT] = {
+ .pc_decode = (kxdrproc_t) nfssvc_decode_void,
+ .pc_encode = (kxdrproc_t) nfssvc_encode_void,
+ .pc_argsize = sizeof(struct nfsd_void),
+ .pc_ressize = sizeof(struct nfsd_void),
+ .pc_cachetype = RC_NOCACHE,
+ .pc_xdrressize = ST,
+ },
+ [NFSPROC_LOOKUP] = {
+ .pc_func = (svc_procfunc) nfsd_proc_lookup,
+ .pc_decode = (kxdrproc_t) nfssvc_decode_diropargs,
+ .pc_encode = (kxdrproc_t) nfssvc_encode_diropres,
+ .pc_release = (kxdrproc_t) nfssvc_release_fhandle,
+ .pc_argsize = sizeof(struct nfsd_diropargs),
+ .pc_ressize = sizeof(struct nfsd_diropres),
+ .pc_cachetype = RC_NOCACHE,
+ .pc_xdrressize = ST+FH+AT,
+ },
+ [NFSPROC_READLINK] = {
+ .pc_func = (svc_procfunc) nfsd_proc_readlink,
+ .pc_decode = (kxdrproc_t) nfssvc_decode_readlinkargs,
+ .pc_encode = (kxdrproc_t) nfssvc_encode_readlinkres,
+ .pc_argsize = sizeof(struct nfsd_readlinkargs),
+ .pc_ressize = sizeof(struct nfsd_readlinkres),
+ .pc_cachetype = RC_NOCACHE,
+ .pc_xdrressize = ST+1+NFS_MAXPATHLEN/4,
+ },
+ [NFSPROC_READ] = {
+ .pc_func = (svc_procfunc) nfsd_proc_read,
+ .pc_decode = (kxdrproc_t) nfssvc_decode_readargs,
+ .pc_encode = (kxdrproc_t) nfssvc_encode_readres,
+ .pc_release = (kxdrproc_t) nfssvc_release_fhandle,
+ .pc_argsize = sizeof(struct nfsd_readargs),
+ .pc_ressize = sizeof(struct nfsd_readres),
+ .pc_cachetype = RC_NOCACHE,
+ .pc_xdrressize = ST+AT+1+NFSSVC_MAXBLKSIZE_V2/4,
+ },
+ [NFSPROC_WRITECACHE] = {
+ .pc_decode = (kxdrproc_t) nfssvc_decode_void,
+ .pc_encode = (kxdrproc_t) nfssvc_encode_void,
+ .pc_argsize = sizeof(struct nfsd_void),
+ .pc_ressize = sizeof(struct nfsd_void),
+ .pc_cachetype = RC_NOCACHE,
+ .pc_xdrressize = ST,
+ },
+ [NFSPROC_WRITE] = {
+ .pc_func = (svc_procfunc) nfsd_proc_write,
+ .pc_decode = (kxdrproc_t) nfssvc_decode_writeargs,
+ .pc_encode = (kxdrproc_t) nfssvc_encode_attrstat,
+ .pc_release = (kxdrproc_t) nfssvc_release_fhandle,
+ .pc_argsize = sizeof(struct nfsd_writeargs),
+ .pc_ressize = sizeof(struct nfsd_attrstat),
+ .pc_cachetype = RC_REPLBUFF,
+ .pc_xdrressize = ST+AT,
+ },
+ [NFSPROC_CREATE] = {
+ .pc_func = (svc_procfunc) nfsd_proc_create,
+ .pc_decode = (kxdrproc_t) nfssvc_decode_createargs,
+ .pc_encode = (kxdrproc_t) nfssvc_encode_diropres,
+ .pc_release = (kxdrproc_t) nfssvc_release_fhandle,
+ .pc_argsize = sizeof(struct nfsd_createargs),
+ .pc_ressize = sizeof(struct nfsd_diropres),
+ .pc_cachetype = RC_REPLBUFF,
+ .pc_xdrressize = ST+FH+AT,
+ },
+ [NFSPROC_REMOVE] = {
+ .pc_func = (svc_procfunc) nfsd_proc_remove,
+ .pc_decode = (kxdrproc_t) nfssvc_decode_diropargs,
+ .pc_encode = (kxdrproc_t) nfssvc_encode_void,
+ .pc_argsize = sizeof(struct nfsd_diropargs),
+ .pc_ressize = sizeof(struct nfsd_void),
+ .pc_cachetype = RC_REPLSTAT,
+ .pc_xdrressize = ST,
+ },
+ [NFSPROC_RENAME] = {
+ .pc_func = (svc_procfunc) nfsd_proc_rename,
+ .pc_decode = (kxdrproc_t) nfssvc_decode_renameargs,
+ .pc_encode = (kxdrproc_t) nfssvc_encode_void,
+ .pc_argsize = sizeof(struct nfsd_renameargs),
+ .pc_ressize = sizeof(struct nfsd_void),
+ .pc_cachetype = RC_REPLSTAT,
+ .pc_xdrressize = ST,
+ },
+ [NFSPROC_LINK] = {
+ .pc_func = (svc_procfunc) nfsd_proc_link,
+ .pc_decode = (kxdrproc_t) nfssvc_decode_linkargs,
+ .pc_encode = (kxdrproc_t) nfssvc_encode_void,
+ .pc_argsize = sizeof(struct nfsd_linkargs),
+ .pc_ressize = sizeof(struct nfsd_void),
+ .pc_cachetype = RC_REPLSTAT,
+ .pc_xdrressize = ST,
+ },
+ [NFSPROC_SYMLINK] = {
+ .pc_func = (svc_procfunc) nfsd_proc_symlink,
+ .pc_decode = (kxdrproc_t) nfssvc_decode_symlinkargs,
+ .pc_encode = (kxdrproc_t) nfssvc_encode_void,
+ .pc_argsize = sizeof(struct nfsd_symlinkargs),
+ .pc_ressize = sizeof(struct nfsd_void),
+ .pc_cachetype = RC_REPLSTAT,
+ .pc_xdrressize = ST,
+ },
+ [NFSPROC_MKDIR] = {
+ .pc_func = (svc_procfunc) nfsd_proc_mkdir,
+ .pc_decode = (kxdrproc_t) nfssvc_decode_createargs,
+ .pc_encode = (kxdrproc_t) nfssvc_encode_diropres,
+ .pc_release = (kxdrproc_t) nfssvc_release_fhandle,
+ .pc_argsize = sizeof(struct nfsd_createargs),
+ .pc_ressize = sizeof(struct nfsd_diropres),
+ .pc_cachetype = RC_REPLBUFF,
+ .pc_xdrressize = ST+FH+AT,
+ },
+ [NFSPROC_RMDIR] = {
+ .pc_func = (svc_procfunc) nfsd_proc_rmdir,
+ .pc_decode = (kxdrproc_t) nfssvc_decode_diropargs,
+ .pc_encode = (kxdrproc_t) nfssvc_encode_void,
+ .pc_argsize = sizeof(struct nfsd_diropargs),
+ .pc_ressize = sizeof(struct nfsd_void),
+ .pc_cachetype = RC_REPLSTAT,
+ .pc_xdrressize = ST,
+ },
+ [NFSPROC_READDIR] = {
+ .pc_func = (svc_procfunc) nfsd_proc_readdir,
+ .pc_decode = (kxdrproc_t) nfssvc_decode_readdirargs,
+ .pc_encode = (kxdrproc_t) nfssvc_encode_readdirres,
+ .pc_argsize = sizeof(struct nfsd_readdirargs),
+ .pc_ressize = sizeof(struct nfsd_readdirres),
+ .pc_cachetype = RC_NOCACHE,
+ },
+ [NFSPROC_STATFS] = {
+ .pc_func = (svc_procfunc) nfsd_proc_statfs,
+ .pc_decode = (kxdrproc_t) nfssvc_decode_fhandle,
+ .pc_encode = (kxdrproc_t) nfssvc_encode_statfsres,
+ .pc_argsize = sizeof(struct nfsd_fhandle),
+ .pc_ressize = sizeof(struct nfsd_statfsres),
+ .pc_cachetype = RC_NOCACHE,
+ .pc_xdrressize = ST+5,
+ },
};
/*
* Map errnos to NFS errnos.
*/
-int
+__be32
nfserrno (int errno)
{
static struct {
- int nfserr;
+ __be32 nfserr;
int syserr;
} nfs_errtbl[] = {
{ nfs_ok, 0 },
#endif
{ nfserr_stale, -ESTALE },
{ nfserr_jukebox, -ETIMEDOUT },
+ { nfserr_jukebox, -ERESTARTSYS },
{ nfserr_dropit, -EAGAIN },
{ nfserr_dropit, -ENOMEM },
{ nfserr_badname, -ESRCH },
{ nfserr_io, -ETXTBSY },
{ nfserr_notsupp, -EOPNOTSUPP },
- { -1, -EIO }
+ { nfserr_toosmall, -ETOOSMALL },
};
int i;
- for (i = 0; nfs_errtbl[i].nfserr != -1; i++) {
+ for (i = 0; i < ARRAY_SIZE(nfs_errtbl); i++) {
if (nfs_errtbl[i].syserr == errno)
return nfs_errtbl[i].nfserr;
}