vitalif
/
libnfs
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity
libnfs/lib/nfs_v4.c

5227 lines
156 KiB
C
Raw Blame History

/* -*- mode:c; tab-width:8; c-basic-offset:8; indent-tabs-mode:nil; -*- */
/*
Copyright (C) 2017 by Ronnie Sahlberg <ronniesahlberg@gmail.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
/*
* High level api to nfsv4 filesystems
*/
#ifndef _GNU_SOURCE
#define _GNU_SOURCE
#endif
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#ifdef AROS
#include "aros_compat.h"
#endif
#ifdef PS2_EE
#include "ps2_compat.h"
#endif
#ifdef PS3_PPU
#include "ps3_compat.h"
#endif
#ifdef WIN32
#include <win32/win32_compat.h>
#endif
#ifdef HAVE_INTTYPES_H
#include <inttypes.h>
#else
#define PRIu64 "llu"
#endif
#ifdef HAVE_UTIME_H
#include <utime.h>
#endif
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#ifdef HAVE_SYS_VFS_H
#include <sys/vfs.h>
#endif
#ifdef HAVE_SYS_STATVFS_H
#include <sys/statvfs.h>
#endif
#if defined(__ANDROID__) && !defined(HAVE_SYS_STATVFS_H)
#define statvfs statfs
#endif
#ifdef HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif
#ifdef HAVE_STRINGS_H
#include <strings.h>
#endif
#ifdef MAJOR_IN_MKDEV
#include <sys/mkdev.h>
#endif
#ifdef HAVE_SYS_SYSMACROS_H
#include <sys/sysmacros.h>
#endif
#ifdef HAVE_GETPWNAM
#include <pwd.h>
#endif
#include <ctype.h>
#include <stdio.h>
#include <stdarg.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include <errno.h>
#include <time.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include "libnfs-zdr.h"
#include "slist.h"
#include "libnfs.h"
#include "libnfs-raw.h"
#include "libnfs-raw-nfs4.h"
#include "libnfs-private.h"
#ifndef discard_const
#define discard_const(ptr) ((void *)((intptr_t)(ptr)))
#endif
struct nfs4_cb_data;
typedef int (*op_filler)(struct nfs4_cb_data *data, nfs_argop4 *op);
struct lookup_link_data {
unsigned int idx;
};
typedef void (*blob_free)(void *);
struct nfs4_blob {
int len;
void *val;
blob_free free;
};
/* Function and arguments to append the requested operations we want
* for the resolved path.
*/
struct lookup_filler {
op_filler func;
int max_op;
int flags;
void *data; /* Freed by nfs4_cb_data destructor */
struct nfs4_blob blob0;
struct nfs4_blob blob1;
struct nfs4_blob blob2;
struct nfs4_blob blob3;
};
struct rw_data {
uint64_t offset;
int update_pos;
};
struct nfs4_cb_data {
struct nfs_context *nfs;
/* Do not follow symlinks for the final component on a lookup.
* I.e. stat vs lstat
*/
#define LOOKUP_FLAG_NO_FOLLOW 0x0001
#define LOOKUP_FLAG_IS_STATVFS64 0x0002
#define MUTEX_HELD 0x0004
int flags;
/* Internal callback for open-with-continuation use */
rpc_cb open_cb;
/* Application callback and data */
nfs_cb cb;
void *private_data;
/* Used to track lock_owner during open() */
uint32_t lock_owner;
/* internal callback */
rpc_cb continue_cb;
char *path; /* path to lookup */
struct lookup_filler filler;
/* Data we need when resolving a symlink in the path */
struct lookup_link_data link;
/* Data we need for updating offset in read/write */
struct rw_data rw_data;
};
static uint32_t standard_attributes[2] = {
(1 << FATTR4_TYPE |
1 << FATTR4_SIZE |
1 << FATTR4_FILEID),
(1 << (FATTR4_MODE - 32) |
1 << (FATTR4_NUMLINKS - 32) |
1 << (FATTR4_OWNER - 32) |
1 << (FATTR4_OWNER_GROUP - 32) |
1 << (FATTR4_SPACE_USED - 32) |
1 << (FATTR4_TIME_ACCESS - 32) |
1 << (FATTR4_TIME_METADATA - 32) |
1 << (FATTR4_TIME_MODIFY - 32))
};
static uint32_t statvfs_attributes[2] = {
(1 << FATTR4_FSID |
1 << FATTR4_FILES_AVAIL |
1 << FATTR4_FILES_FREE |
1 << FATTR4_FILES_TOTAL |
1 << FATTR4_MAXNAME),
(1 << (FATTR4_SPACE_AVAIL - 32) |
1 << (FATTR4_SPACE_FREE - 32) |
1 << (FATTR4_SPACE_TOTAL - 32))
};
static uint32_t getacl_attributes[1] = {
(1 << FATTR4_ACL )
};
static int
nfs4_open_async_internal(struct nfs_context *nfs, struct nfs4_cb_data *data,
int flags, int mode);
/* Caller will free the returned path. */
static char *
nfs4_resolve_path(struct nfs_context *nfs, const char *path)
{
char *new_path = NULL;
/* Absolute paths we just use as is.
* Relateive paths have cwd prepended to them and then become
* absolute paths too.
*/
if (path[0] == '/') {
new_path = strdup(path);
} else {
new_path = malloc(strlen(path) + strlen(nfs->nfsi->cwd) + 2);
if (new_path != NULL) {
sprintf(new_path, "%s/%s", nfs->nfsi->cwd, path);
}
}
if (new_path == NULL) {
nfs_set_error(nfs, "Out of memory: failed to "
"allocate path string");
return NULL;
}
if (nfs_normalize_path(nfs, new_path)) {
nfs_set_error(nfs, "Failed to normalize real path. %s",
nfs_get_error(nfs));
free(new_path);
return NULL;
}
return new_path;
}
static void
free_nfs4_cb_data(struct nfs4_cb_data *data)
{
free(data->path);
free(data->filler.data);
if (data->filler.blob0.val && data->filler.blob0.free) {
data->filler.blob0.free(data->filler.blob0.val);
}
if (data->filler.blob1.val && data->filler.blob1.free) {
data->filler.blob1.free(data->filler.blob1.val);
}
if (data->filler.blob2.val && data->filler.blob2.free) {
data->filler.blob2.free(data->filler.blob2.val);
}
if (data->filler.blob3.val && data->filler.blob3.free) {
data->filler.blob3.free(data->filler.blob3.val);
}
free(data);
}
static struct nfs4_cb_data *
init_cb_data_full_path(struct nfs_context *nfs, const char *path)
{
struct nfs4_cb_data *data;
data = malloc(sizeof(*data));
if (data == NULL) {
nfs_set_error(nfs, "Out of memory. Failed to allocate "
"cb data");
return NULL;
}
memset(data, 0, sizeof(*data));
data->nfs = nfs;
data->path = nfs4_resolve_path(nfs, path);
if (data->path == NULL) {
free_nfs4_cb_data(data);
return NULL;
}
return data;
}
static void
data_split_path(struct nfs4_cb_data *data)
{
char *path;
path = strrchr(data->path, '/');
if (path == data->path) {
char *ptr;
for (ptr = data->path; *ptr; ptr++) {
*ptr = *(ptr + 1);
}
/* No path to lookup */
data->filler.data = data->path;
data->path = strdup("/");
} else {
*path++ = 0;
data->filler.data = strdup(path);
}
}
static struct nfs4_cb_data *
init_cb_data_split_path(struct nfs_context *nfs, const char *orig_path)
{
struct nfs4_cb_data *data;
data = init_cb_data_full_path(nfs, orig_path);
if (data == NULL) {
return NULL;
}
data_split_path(data);
return data;
}
static int
check_nfs4_error(struct nfs_context *nfs, int status,
struct nfs4_cb_data *data, void *command_data,
char *op_name)
{
COMPOUND4res *res = command_data;
if (status == RPC_STATUS_ERROR) {
data->cb(-EFAULT, nfs, res, data->private_data);
free_nfs4_cb_data(data);
return 1;
}
if (status == RPC_STATUS_CANCEL) {
data->cb(-EINTR, nfs, "Command was cancelled",
data->private_data);
free_nfs4_cb_data(data);
return 1;
}
if (status == RPC_STATUS_TIMEOUT) {
data->cb(-EINTR, nfs, "Command timed out",
data->private_data);
free_nfs4_cb_data(data);
return 1;
}
if (res && res->status != NFS4_OK) {
nfs_set_error(nfs, "NFS4: %s (path %s) failed with "
"%s(%d)", op_name,
data->path,
nfsstat4_to_str(res->status),
nfsstat4_to_errno(res->status));
data->cb(nfsstat3_to_errno(res->status), nfs,
nfs_get_error(nfs), data->private_data);
free_nfs4_cb_data(data);
return 1;
}
return 0;
}
static int
nfs4_find_op(struct nfs_context *nfs, struct nfs4_cb_data *data,
COMPOUND4res *res, int op, const char *op_name)
{
int i;
for (i = 0; i < (int)res->resarray.resarray_len; i++) {
if (res->resarray.resarray_val[i].resop == op) {
break;
}
}
if (i == res->resarray.resarray_len) {
nfs_set_error(nfs, "No %s result.", op_name);
data->cb(-EINVAL, nfs, nfs_get_error(nfs), data->private_data);
free_nfs4_cb_data(data);
return -1;
}
return i;
}
static uint64_t
nfs_hton64(uint64_t val)
{
int i;
uint64_t res;
unsigned char *ptr = (void *)&res;
for (i = 0; i < 8; i++) {
ptr[7 - i] = val & 0xff;
val >>= 8;
}
return res;
}
static uint64_t
nfs_ntoh64(uint64_t val)
{
int i;
uint64_t res;
unsigned char *ptr = (void *)&res;
for (i = 0; i < 8; i++) {
ptr[7 - i] = val & 0xff;
val >>= 8;
}
return res;
}
static uint64_t
nfs_pntoh64(const uint32_t *buf)
{
uint64_t val;
val = ntohl(*(uint32_t *)(void *)buf);
buf++;
val <<= 32;
val |= ntohl(*(uint32_t *)(void *)buf);
return val;
}
static int
nfs_get_ugid(struct nfs_context *nfs, const char *buf, int slen, int is_user)
{
int ugid = 0;
const char *name = buf;
while (slen) {
if (isdigit(*buf)) {
ugid *= 10;
ugid += *buf - '0';
} else {
#ifdef HAVE_GETPWNAM
struct passwd *pwd = getpwnam(name);
if (pwd) {
if (is_user) {
return pwd->pw_uid;
} else {
return pwd->pw_gid;
}
}
#else
(void) name; // Let the compiler know that this variable is intentionally unused, build would fail with -Werror=unused-variable otherwise
#endif
return 65534;
}
buf++;
slen--;
}
return ugid;
}
#define CHECK_GETATTR_BUF_SPACE(len, size) \
if (len < size) { \
nfs_set_error(nfs, "Not enough data in fattr4"); \
return -1; \
}
static int
nfs_parse_attributes(struct nfs_context *nfs, struct nfs4_cb_data *data,
struct nfs_stat_64 *st, const char *buf, int len)
{
int type, slen, pad;
/* Type */
CHECK_GETATTR_BUF_SPACE(len, 4);
type = ntohl(*(uint32_t *)(void *)buf);
buf += 4;
len -= 4;
/* Size */
CHECK_GETATTR_BUF_SPACE(len, 8);
st->nfs_size = nfs_pntoh64((uint32_t *)(void *)buf);
buf += 8;
len -= 8;
/* Inode */
CHECK_GETATTR_BUF_SPACE(len, 8);
st->nfs_ino = nfs_pntoh64((uint32_t *)(void *)buf);
buf += 8;
len -= 8;
/* Mode */
CHECK_GETATTR_BUF_SPACE(len, 4);
st->nfs_mode = ntohl(*(uint32_t *)(void *)buf);
buf += 4;
len -= 4;
switch (type) {
case NF4REG:
st->nfs_mode |= S_IFREG;
break;
case NF4DIR:
st->nfs_mode |= S_IFDIR;
break;
case NF4BLK:
st->nfs_mode |= S_IFBLK;
break;
case NF4CHR:
st->nfs_mode |= S_IFCHR;
break;
case NF4LNK:
st->nfs_mode |= S_IFLNK;
break;
case NF4SOCK:
st->nfs_mode |= S_IFSOCK;
break;
case NF4FIFO:
st->nfs_mode |= S_IFIFO;
break;
default:
break;
}
/* Num Links */
CHECK_GETATTR_BUF_SPACE(len, 4);
st->nfs_nlink = ntohl(*(uint32_t *)(void *)buf);
buf += 4;
len -= 4;
/* Owner */
CHECK_GETATTR_BUF_SPACE(len, 4);
slen = ntohl(*(uint32_t *)(void *)buf);
buf += 4;
len -= 4;
pad = (4 - (slen & 0x03)) & 0x03;
CHECK_GETATTR_BUF_SPACE(len, slen);
st->nfs_uid = nfs_get_ugid(nfs, buf, slen, 1);
buf += slen;
CHECK_GETATTR_BUF_SPACE(len, pad);
buf += pad;
len -= pad;
/* Group */
CHECK_GETATTR_BUF_SPACE(len, 4);
slen = ntohl(*(uint32_t *)(void *)buf);
buf += 4;
len -= 4;
pad = (4 - (slen & 0x03)) & 0x03;
CHECK_GETATTR_BUF_SPACE(len, slen);
st->nfs_gid = nfs_get_ugid(nfs, buf, slen, 0);
buf += slen;
CHECK_GETATTR_BUF_SPACE(len, pad);
buf += pad;
len -= pad;
/* Space Used */
CHECK_GETATTR_BUF_SPACE(len, 8);
st->nfs_used = nfs_pntoh64((uint32_t *)(void *)buf);
buf += 8;
len -= 8;
/* ATime */
CHECK_GETATTR_BUF_SPACE(len, 12);
st->nfs_atime = nfs_pntoh64((uint32_t *)(void *)buf);
buf += 8;
len -= 8;
st->nfs_atime_nsec = ntohl(*(uint32_t *)(void *)buf);
buf += 4;
len -= 4;
/* CTime */
CHECK_GETATTR_BUF_SPACE(len, 12);
st->nfs_ctime = nfs_pntoh64((uint32_t *)(void *)buf);
buf += 8;
len -= 8;
st->nfs_ctime_nsec = ntohl(*(uint32_t *)(void *)buf);
buf += 4;
len -= 4;
/* MTime */
CHECK_GETATTR_BUF_SPACE(len, 12);
st->nfs_mtime = nfs_pntoh64((uint32_t *)(void *)buf);
buf += 8;
len -= 8;
st->nfs_mtime_nsec = ntohl(*(uint32_t *)(void *)buf);
buf += 4;
len -= 4;
st->nfs_blksize = NFS_BLKSIZE;
st->nfs_blocks = (st->nfs_used + NFS_BLKSIZE -1) / NFS_BLKSIZE;
return 0;
}
static int
nfs4_num_path_components(struct nfs_context *nfs, const char *path)
{
int i;
for (i = 0; (path = strchr(path, '/')); path++, i++)
;
return i;
}
static int
nfs4_op_create(struct nfs_context *nfs, nfs_argop4 *op, const char *name,
nfs_ftype4 type, struct nfs4_blob *attrmask,
struct nfs4_blob *attr_vals, const char *linkdata, int dev)
{
CREATE4args *cargs;
op[0].argop = OP_CREATE;
cargs = &op[0].nfs_argop4_u.opcreate;
memset(cargs, 0, sizeof(*cargs));
cargs->objtype.type = type;
cargs->objname.utf8string_len = strlen(name);
cargs->objname.utf8string_val = discard_const(name);
if (attrmask) {
cargs->createattrs.attrmask.bitmap4_len = attrmask->len;
cargs->createattrs.attrmask.bitmap4_val = attrmask->val;
}
if (attr_vals) {
cargs->createattrs.attr_vals.attrlist4_len = attr_vals->len;
cargs->createattrs.attr_vals.attrlist4_val = attr_vals->val;
}
if (linkdata) {
cargs->objtype.createtype4_u.linkdata.utf8string_len =
strlen(linkdata);
cargs->objtype.createtype4_u.linkdata.utf8string_val =
discard_const(linkdata);
}
switch (type) {
case NF4CHR:
cargs->objtype.type = NF4CHR;
cargs->objtype.createtype4_u.devdata.specdata1 = major(dev);
cargs->objtype.createtype4_u.devdata.specdata2 = minor(dev);
break;
case NF4BLK:
cargs->objtype.type = NF4BLK;
cargs->objtype.createtype4_u.devdata.specdata1 = major(dev);
cargs->objtype.createtype4_u.devdata.specdata2 = minor(dev);
break;
default:
;
}
return 1;
}
static int
nfs4_op_commit(struct nfs_context *nfs, nfs_argop4 *op)
{
COMMIT4args *coargs;
op[0].argop = OP_COMMIT;
coargs = &op[0].nfs_argop4_u.opcommit;
coargs->offset = 0;
coargs->count = 0;
return 1;
}
static int
nfs4_op_release_lockowner(struct nfs_context *nfs, nfs_argop4 *op, struct nfsfh *fh)
{
RELEASE_LOCKOWNER4args *rlargs;
op->argop = OP_RELEASE_LOCKOWNER;
rlargs = &op->nfs_argop4_u.oprelease_lockowner;
rlargs->lock_owner.clientid = nfs->nfsi->clientid;
rlargs->lock_owner.owner.owner_len = 4;
rlargs->lock_owner.owner.owner_val = (char *)&fh->lock_owner;
return 1;
}
static int
nfs4_op_close(struct nfs_context *nfs, nfs_argop4 *op, struct nfsfh *fh)
{
CLOSE4args *clargs;
int i = 0;
if (fh->is_dirty) {
i += nfs4_op_commit(nfs, &op[i]);
}
op[i].argop = OP_CLOSE;
clargs = &op[i++].nfs_argop4_u.opclose;
clargs->seqid = fh->open_seqid;
clargs->open_stateid.seqid = fh->stateid.seqid;
memcpy(clargs->open_stateid.other, fh->stateid.other, 12);
#ifdef HAVE_MULTITHREADING
i += nfs4_op_release_lockowner(nfs, &op[i], fh);
#endif
return i;
}
static int
nfs4_op_access(struct nfs_context *nfs, nfs_argop4 *op, uint32_t access_mask)
{
ACCESS4args *aargs;
op[0].argop = OP_ACCESS;
aargs = &op[0].nfs_argop4_u.opaccess;
memset(aargs, 0, sizeof(*aargs));
aargs->access = access_mask;
return 1;
}
static int
nfs4_op_setclientid(struct nfs_context *nfs, nfs_argop4 *op, verifier4 verifier,
const char *client_name)
{
SETCLIENTID4args *scidargs;
op[0].argop = OP_SETCLIENTID;
scidargs = &op[0].nfs_argop4_u.opsetclientid;
memcpy(scidargs->client.verifier, verifier, sizeof(verifier4));
scidargs->client.id.id_len = strlen(client_name);
scidargs->client.id.id_val = discard_const(client_name);
/* TODO: Decide what we should do here. As long as we only
* expose a single FD to the application we will not be able to
* do NFSv4 callbacks easily.
* Just give it garbage for now until we figure out how we should
* solve this. Until then we will just have to avoid doing things
* that require a callback.
* ( Clients (i.e. Linux) ignore this anyway and just call back to
* the originating address and program anyway. )
*/
scidargs->callback.cb_program = 0; /* NFS4_CALLBACK */
scidargs->callback.cb_location.r_netid = "tcp";
scidargs->callback.cb_location.r_addr = "0.0.0.0.0.0";
scidargs->callback_ident = 0x00000001;
return 1;
}
static int
nfs4_op_open_confirm(struct nfs_context *nfs, nfs_argop4 *op, struct nfsfh *fh)
{
OPEN_CONFIRM4args *ocargs;
op[0].argop = OP_OPEN_CONFIRM;
ocargs = &op[0].nfs_argop4_u.opopen_confirm;
ocargs->open_stateid.seqid = fh->stateid.seqid;
memcpy(&ocargs->open_stateid.other, fh->stateid.other, 12);
ocargs->seqid = fh->open_seqid;
return 1;
}
static int
nfs4_op_truncate(struct nfs_context *nfs, nfs_argop4 *op, struct nfsfh *fh,
void *sabuf)
{
SETATTR4args *saargs;
static uint32_t mask[2] = {1 << (FATTR4_SIZE),
1 << (FATTR4_TIME_MODIFY_SET - 32)};
op[0].argop = OP_SETATTR;
saargs = &op[0].nfs_argop4_u.opsetattr;
saargs->stateid.seqid = fh->stateid.seqid;
memcpy(saargs->stateid.other, fh->stateid.other, 12);
saargs->obj_attributes.attrmask.bitmap4_len = 2;
saargs->obj_attributes.attrmask.bitmap4_val = mask;
saargs->obj_attributes.attr_vals.attrlist4_len = 12;
saargs->obj_attributes.attr_vals.attrlist4_val = sabuf;
return 1;
}
static int
nfs4_op_chmod(struct nfs_context *nfs, nfs_argop4 *op, struct nfsfh *fh,
void *sabuf)
{
SETATTR4args *saargs;
static uint32_t mask[2] = {0,
1 << (FATTR4_MODE - 32)};
op[0].argop = OP_SETATTR;
saargs = &op[0].nfs_argop4_u.opsetattr;
if (fh) {
saargs->stateid.seqid = fh->stateid.seqid;
memcpy(saargs->stateid.other, fh->stateid.other, 12);
}
saargs->obj_attributes.attrmask.bitmap4_len = 2;
saargs->obj_attributes.attrmask.bitmap4_val = mask;
saargs->obj_attributes.attr_vals.attrlist4_len = 4;
saargs->obj_attributes.attr_vals.attrlist4_val = sabuf;
return 1;
}
static int
nfs4_op_chown(struct nfs_context *nfs, nfs_argop4 *op, struct nfsfh *fh,
void *sabuf, int len)
{
SETATTR4args *saargs;
static uint32_t mask[2] = {0,
1 << (FATTR4_OWNER - 32) |
1 << (FATTR4_OWNER_GROUP - 32)};
op[0].argop = OP_SETATTR;
saargs = &op[0].nfs_argop4_u.opsetattr;
if (fh) {
saargs->stateid.seqid = fh->stateid.seqid;
memcpy(saargs->stateid.other, fh->stateid.other, 12);
}
saargs->obj_attributes.attrmask.bitmap4_len = 2;
saargs->obj_attributes.attrmask.bitmap4_val = mask;
saargs->obj_attributes.attr_vals.attrlist4_len = len;
saargs->obj_attributes.attr_vals.attrlist4_val = sabuf;
return 1;
}
static int
nfs4_op_utimes(struct nfs_context *nfs, nfs_argop4 *op, struct nfsfh *fh,
void *sabuf, int len)
{
SETATTR4args *saargs;
static uint32_t mask[2] = {0,
1 << (FATTR4_TIME_ACCESS_SET - 32) |
1 << (FATTR4_TIME_MODIFY_SET - 32)};
op[0].argop = OP_SETATTR;
saargs = &op[0].nfs_argop4_u.opsetattr;
if (fh) {
saargs->stateid.seqid = fh->stateid.seqid;
memcpy(saargs->stateid.other, fh->stateid.other, 12);
}
saargs->obj_attributes.attrmask.bitmap4_len = 2;
saargs->obj_attributes.attrmask.bitmap4_val = mask;
saargs->obj_attributes.attr_vals.attrlist4_len = len;
saargs->obj_attributes.attr_vals.attrlist4_val = sabuf;
return 1;
}
static int
nfs4_op_readdir(struct nfs_context *nfs, nfs_argop4 *op, uint64_t cookie)
{
READDIR4args *rdargs;
op[0].argop = OP_READDIR;
rdargs = &op[0].nfs_argop4_u.opreaddir;
memset(rdargs, 0, sizeof(*rdargs));
rdargs->cookie = cookie;
rdargs->dircount = 8192;
rdargs->maxcount = 8192;
rdargs->attr_request.bitmap4_len = 2;
rdargs->attr_request.bitmap4_val = standard_attributes;
return 1;
}
static int
nfs4_op_rename(struct nfs_context *nfs, nfs_argop4 *op, const char *oldname,
const char *newname)
{
RENAME4args *rargs;
op[0].argop = OP_RENAME;
rargs = &op[0].nfs_argop4_u.oprename;
memset(rargs, 0, sizeof(*rargs));
rargs->oldname.utf8string_len = strlen(oldname);
rargs->oldname.utf8string_val = discard_const(oldname);
rargs->newname.utf8string_len = strlen(newname);
rargs->newname.utf8string_val = discard_const(newname);
return 1;
}
static int
nfs4_op_read(struct nfs_context *nfs, nfs_argop4 *op, struct nfsfh *fh,
uint64_t offset, size_t count)
{
READ4args *rargs;
op[0].argop = OP_READ;
rargs = &op[0].nfs_argop4_u.opread;
rargs->stateid.seqid = fh->stateid.seqid;
memcpy(rargs->stateid.other, fh->stateid.other, 12);
rargs->offset = offset;
rargs->count = count;
return 1;
}
static int
nfs4_op_write(struct nfs_context *nfs, nfs_argop4 *op, struct nfsfh *fh,
uint64_t offset, size_t count, const char *buf)
{
WRITE4args *wargs;
op[0].argop = OP_WRITE;
wargs = &op[0].nfs_argop4_u.opwrite;
wargs->stateid.seqid = fh->stateid.seqid;
memcpy(wargs->stateid.other, fh->stateid.other, 12);
wargs->offset = offset;
if (fh->is_sync) {
wargs->stable = DATA_SYNC4;
} else {
wargs->stable = UNSTABLE4;
fh->is_dirty = 1;
}
wargs->data.data_len = count;
wargs->data.data_val = discard_const(buf);
return 1;
}
static int
nfs4_op_getfh(struct nfs_context *nfs, nfs_argop4 *op)
{
op[0].argop = OP_GETFH;
return 1;
}
static int
nfs4_op_savefh(struct nfs_context *nfs, nfs_argop4 *op)
{
op[0].argop = OP_SAVEFH;
return 1;
}
static int
nfs4_op_link(struct nfs_context *nfs, nfs_argop4 *op, const char *newname)
{
LINK4args *largs;
op[0].argop = OP_LINK;
largs = &op[0].nfs_argop4_u.oplink;
memset(largs, 0, sizeof(*largs));
largs->newname.utf8string_len = strlen(newname);
largs->newname.utf8string_val = discard_const(newname);
return 1;
}
static int
nfs4_op_putfh(struct nfs_context *nfs, nfs_argop4 *op, struct nfsfh *nfsfh)
{
PUTFH4args *pfargs;
op[0].argop = OP_PUTFH;
pfargs = &op[0].nfs_argop4_u.opputfh;
pfargs->object.nfs_fh4_len = nfsfh->fh.len;
pfargs->object.nfs_fh4_val = nfsfh->fh.val;
return 1;
}
static int
nfs4_op_lock(struct nfs_context *nfs, nfs_argop4 *op, struct nfsfh *fh,
nfs_opnum4 cmd, nfs_lock_type4 locktype,
int reclaim, uint64_t offset, length4 length)
{
LOCK4args *largs;
op[0].argop = cmd;
largs = &op[0].nfs_argop4_u.oplock;
largs->locktype = locktype;
largs->reclaim = reclaim;
largs->offset = offset;
largs->length = length;
if (nfs->nfsi->has_lock_owner) {
largs->locker.new_lock_owner = 0;
largs->locker.locker4_u.lock_owner.lock_stateid.seqid =
fh->lock_stateid.seqid;
memcpy(largs->locker.locker4_u.lock_owner.lock_stateid.other,
fh->lock_stateid.other, 12);
largs->locker.locker4_u.lock_owner.lock_seqid =
fh->lock_seqid;
} else {
largs->locker.new_lock_owner = 1;
largs->locker.locker4_u.open_owner.open_seqid =
fh->open_seqid;
largs->locker.locker4_u.open_owner.open_stateid.seqid =
fh->stateid.seqid;
memcpy(largs->locker.locker4_u.open_owner.open_stateid.other,
fh->stateid.other, 12);
largs->locker.locker4_u.open_owner.lock_owner.clientid =
nfs->nfsi->clientid;
largs->locker.locker4_u.open_owner.lock_owner.owner.owner_len =
strlen(nfs->nfsi->client_name);
largs->locker.locker4_u.open_owner.lock_owner.owner.owner_val =
nfs->nfsi->client_name;
largs->locker.locker4_u.open_owner.lock_seqid =
fh->lock_seqid;
}
fh->lock_seqid++;
return 1;
}
static int
nfs4_op_locku(struct nfs_context *nfs, nfs_argop4 *op, struct nfsfh *fh,
nfs_lock_type4 locktype, uint64_t offset, length4 length)
{
LOCKU4args *luargs;
op[0].argop = OP_LOCKU;
luargs = &op[0].nfs_argop4_u.oplocku;
luargs->locktype = locktype;
luargs->offset = offset;
luargs->length = length;
luargs->seqid = fh->lock_seqid;
luargs->lock_stateid.seqid = fh->lock_stateid.seqid;
memcpy(luargs->lock_stateid.other, fh->lock_stateid.other, 12);
fh->lock_seqid++;
return 1;
}
static int
nfs4_op_lockt(struct nfs_context *nfs, nfs_argop4 *op, struct nfsfh *fh,
nfs_lock_type4 locktype, uint64_t offset, length4 length)
{
LOCKT4args *ltargs;
op[0].argop = OP_LOCKT;
ltargs = &op[0].nfs_argop4_u.oplockt;
ltargs->locktype = locktype;
ltargs->offset = offset;
ltargs->length = length;
ltargs->owner.clientid = nfs->nfsi->clientid;
ltargs->owner.owner.owner_len = strlen(nfs->nfsi->client_name);
ltargs->owner.owner.owner_val = nfs->nfsi->client_name;
return 1;
}
static int
nfs4_op_lookup(struct nfs_context *nfs, nfs_argop4 *op, const char *path)
{
LOOKUP4args *largs;
op[0].argop = OP_LOOKUP;
largs = &op[0].nfs_argop4_u.oplookup;
largs->objname.utf8string_len = strlen(path);
largs->objname.utf8string_val = discard_const(path);
return 1;
}
static int
nfs4_op_setclientid_confirm(struct nfs_context *nfs, struct nfs_argop4 *op,
uint64_t clientid, verifier4 verifier)
{
SETCLIENTID_CONFIRM4args *scidcargs;
op[0].argop = OP_SETCLIENTID_CONFIRM;
scidcargs = &op[0].nfs_argop4_u.opsetclientid_confirm;
scidcargs->clientid = clientid;
memcpy(scidcargs->setclientid_confirm, verifier, NFS4_VERIFIER_SIZE);
return 1;
}
static int
nfs4_op_putrootfh(struct nfs_context *nfs, nfs_argop4 *op)
{
op[0].argop = OP_PUTROOTFH;
return 1;
}
static int
nfs4_op_readlink(struct nfs_context *nfs, nfs_argop4 *op)
{
op[0].argop = OP_READLINK;
return 1;
}
static int
nfs4_op_remove(struct nfs_context *nfs, nfs_argop4 *op, const char *name)
{
REMOVE4args *rmargs;
op[0].argop = OP_REMOVE;
rmargs = &op[0].nfs_argop4_u.opremove;
memset(rmargs, 0, sizeof(*rmargs));
rmargs->target.utf8string_len = strlen(name);
rmargs->target.utf8string_val = discard_const(name);
return 1;
}
static int
nfs4_op_getattr(struct nfs_context *nfs, nfs_argop4 *op,
uint32_t *attributes, int count)
{
GETATTR4args *gaargs;
op[0].argop = OP_GETATTR;
gaargs = &op[0].nfs_argop4_u.opgetattr;
memset(gaargs, 0, sizeof(*gaargs));
gaargs->attr_request.bitmap4_val = attributes;
gaargs->attr_request.bitmap4_len = count;
return 1;
}
/*
* Allocate op and populate the path components.
* Will mutate path.
*
* Returns:
* -1 : On error.
* <idx> : On success. Idx represents the next free index in op.
* Caller must free op.
*/
static int
nfs4_allocate_op(struct nfs_context *nfs, nfs_argop4 **op,
char *path, int num_extra)
{
char *ptr;
int i, count;
*op = NULL;
count = nfs4_num_path_components(nfs, path);
*op = malloc(sizeof(**op) * (2 + 2 * count + num_extra));
if (*op == NULL) {
nfs_set_error(nfs, "Failed to allocate op array");
return -1;
}
i = 0;
if (nfs->nfsi->rootfh.len) {
struct nfsfh fh;
fh.fh.len = nfs->nfsi->rootfh.len;
fh.fh.val = nfs->nfsi->rootfh.val;
i += nfs4_op_putfh(nfs, &(*op)[i], &fh);
} else {
i += nfs4_op_putrootfh(nfs, &(*op)[i]);
}
ptr = &path[1];
while (ptr && *ptr != 0) {
char *tmp;
tmp = strchr(ptr, '/');
if (tmp) {
*tmp = 0;
tmp = tmp + 1;
}
i += nfs4_op_lookup(nfs, &(*op)[i], ptr);
ptr = tmp;
}
i += nfs4_op_getattr(nfs, &(*op)[i], standard_attributes, 2);
return i;
}
static int
nfs4_lookup_path_async(struct nfs_context *nfs,
struct nfs4_cb_data *data,
rpc_cb cb);
static void
nfs4_lookup_path_2_cb(struct rpc_context *rpc, int status, void *command_data,
void *private_data)
{
struct nfs4_cb_data *data = private_data;
struct nfs_context *nfs = data->nfs;
COMPOUND4res *res = command_data;
READLINK4res *rlres = NULL;
char *path, *tmp, *end;
int i;
assert(rpc->magic == RPC_CONTEXT_MAGIC);
if (check_nfs4_error(nfs, status, data, res, "READLINK")) {
return;
}
path = strdup(data->path);
if (path == NULL) {
nfs_set_error(nfs, "Out of memory duplicating path.");
data->cb(-ENOMEM, nfs, nfs_get_error(nfs),
data->private_data);
free_nfs4_cb_data(data);
return;
}
tmp = &path[0];
while (data->link.idx-- > 1) {
tmp = strchr(tmp + 1, '/');
}
*tmp++ = 0;
end = strchr(tmp, '/');
if (end == NULL) {
/* Symlink was the last component. */
end = "";
} else {
*end++ = 0;
}
if ((i = nfs4_find_op(nfs, data, res, OP_READLINK, "READLINK")) < 0) {
free(path);
return;
}
rlres = &res->resarray.resarray_val[i].nfs_resop4_u.opreadlink;
tmp = malloc(strlen(data->path) + 3 + rlres->READLINK4res_u.resok4.link.utf8string_len);
if (tmp == NULL) {
nfs_set_error(nfs, "Out of memory duplicating path.");
data->cb(-ENOMEM, nfs, nfs_get_error(nfs),
data->private_data);
free_nfs4_cb_data(data);
free(path);
return;
}
sprintf(tmp, "%s/%.*s/%s",
path, rlres->READLINK4res_u.resok4.link.utf8string_len,
rlres->READLINK4res_u.resok4.link.utf8string_val, end);
free(path);
free(data->path);
data->path = tmp;
if (nfs4_lookup_path_async(nfs, data, data->continue_cb) < 0) {
data->cb(-ENOMEM, nfs, res, data->private_data);
free_nfs4_cb_data(data);
return;
}
}
static int
nfs4_open_readlink(struct rpc_context *rpc, COMPOUND4res *res,
struct nfs4_cb_data *data);
static void
nfs4_lookup_path_1_cb(struct rpc_context *rpc, int status, void *command_data,
void *private_data)
{
struct nfs4_cb_data *data = private_data;
struct nfs_context *nfs = data->nfs;
COMPOUND4args args;
nfs_argop4 *op;
COMPOUND4res *res = command_data;
int i;
int resolve_link = 0;
char *path, *tmp;
assert(rpc->magic == RPC_CONTEXT_MAGIC);
if (status == RPC_STATUS_ERROR) {
data->cb(-EFAULT, nfs, res, data->private_data);
free_nfs4_cb_data(data);
return;
}
if (status == RPC_STATUS_CANCEL) {
data->cb(-EINTR, nfs, "Command was cancelled",
data->private_data);
free_nfs4_cb_data(data);
return;
}
if (status == RPC_STATUS_TIMEOUT) {
data->cb(-EINTR, nfs, "Command timed out",
data->private_data);
free_nfs4_cb_data(data);
return;
}
if (res->status != NFS4_OK &&
res->status != NFS4ERR_SYMLINK) {
nfs_set_error(nfs, "NFS4: (path %s) failed with "
"%s(%d)",
data->path,
nfsstat4_to_str(res->status),
nfsstat4_to_errno(res->status));
data->cb(nfsstat3_to_errno(res->status), nfs,
nfs_get_error(nfs), data->private_data);
free_nfs4_cb_data(data);
return;
}
for (i = 0; i < (int)res->resarray.resarray_len; i++) {
if (res->resarray.resarray_val[i].resop == OP_GETATTR) {
GETATTR4resok *garesok;
struct nfs_stat_64 st;
garesok = &res->resarray.resarray_val[i].nfs_resop4_u.opgetattr.GETATTR4res_u.resok4;
memset(&st, 0, sizeof(st));
if (nfs_parse_attributes(nfs, data, &st,
garesok->obj_attributes.attr_vals.attrlist4_val,
garesok->obj_attributes.attr_vals.attrlist4_len) < 0) {
data->cb(-EINVAL, nfs, nfs_get_error(nfs), data->private_data);
free_nfs4_cb_data(data);
return;
}
if ((st.nfs_mode & S_IFMT) == S_IFLNK) {
/* The final component of the path was a
* symlink so we may need to resolve it.
*/
resolve_link = 1;
}
}
}
/* Open/create is special since the final component for the file
* object is sent as part of the OP_OPEN command. So even if the
* directory path is all good and resolved, we still need to check
* the attributes for the final component and resolve it if it too
* is a symlink.
*/
if (!resolve_link) {
if (nfs4_open_readlink(rpc, res, data) < 0) {
/* It was a symlink and we have started trying to
* resolve it. Nothing more to do here.
*/
return;
}
}
if (data->flags & LOOKUP_FLAG_NO_FOLLOW) {
/* Do not resolve the final component of the path
* if it is a symlink.
*/
resolve_link = 0;
}
/* Everything is good so we can just pass it on to the next
* phase.
*/
if (res->status == NFS4_OK && !resolve_link) {
data->continue_cb(rpc, NFS4_OK, res, data);
return;
}
/* Find the lookup that failed and the associated fh */
data->link.idx = 0;
for (i = 0; i < (int)res->resarray.resarray_len; i++) {
if (res->resarray.resarray_val[i].resop == OP_LOOKUP) {
if (res->resarray.resarray_val[i].nfs_resop4_u.oplookup.status == NFS4ERR_SYMLINK) {
break;
}
data->link.idx++;
}
}
if (!resolve_link && i == res->resarray.resarray_len) {
nfs_set_error(nfs, "Symlink not found during lookup.");
data->cb(-EFAULT, nfs, nfs_get_error(nfs), data->private_data);
free_nfs4_cb_data(data);
return;
}
/* Build a new path that strips of everything after the symlink. */
path = strdup(data->path);
if (path == NULL) {
nfs_set_error(nfs, "Out of memory. Failed to duplicate "
"path.");
data->cb(-ENOMEM, nfs, nfs_get_error(nfs),
data->private_data);
free_nfs4_cb_data(data);
return;
}
/* The symlink is not the last component, so find the '/' before
* the symlink and zero it out.
*/
if (!resolve_link) {
tmp = path;
for (i = 0; i < (int)data->link.idx; i++) {
tmp = strchr(tmp + 1, '/');
}
*tmp = 0;
}
/* We need to resolve the symlink */
if ((i = nfs4_allocate_op(nfs, &op, path, 1)) < 0) {
data->cb(-ENOMEM, nfs, nfs_get_error(nfs), data->private_data);
free_nfs4_cb_data(data);
free(path);
return;
}
/* Append a READLINK command */
i += nfs4_op_readlink(nfs, &op[i]);
memset(&args, 0, sizeof(args));
args.argarray.argarray_len = i;
args.argarray.argarray_val = op;
if (rpc_nfs4_compound_async(nfs->rpc, nfs4_lookup_path_2_cb, &args,
data) != 0) {
nfs_set_error(nfs, "Failed to queue READLINK command. %s",
nfs_get_error(nfs));
data->cb(-ENOMEM, nfs, nfs_get_error(nfs), data->private_data);
free_nfs4_cb_data(data);
free(path);
return;
}
free(path);
}
static int
nfs4_lookup_path_async(struct nfs_context *nfs,
struct nfs4_cb_data *data,
rpc_cb cb)
{
COMPOUND4args args;
nfs_argop4 *op;
char *path;
int i, num_op;
path = nfs4_resolve_path(nfs, data->path);
if (path == NULL) {
return -1;
}
free(data->path);
data->path = path;
path = strdup(path);
if (path == NULL) {
return -1;
}
if ((i = nfs4_allocate_op(nfs, &op, path, data->filler.max_op)) < 0) {
free(path);
return -1;
}
num_op = data->filler.func(data, &op[i]);
data->continue_cb = cb;
memset(&args, 0, sizeof(args));
args.argarray.argarray_len = i + num_op;
args.argarray.argarray_val = op;
if (rpc_nfs4_compound_async(nfs->rpc, nfs4_lookup_path_1_cb, &args,
data) != 0) {
nfs_set_error(nfs, "Failed to queue LOOKUP command. %s",
nfs_get_error(nfs));
free(path);
free(op);
return -1;
}
free(path);
free(op);
return 0;
}
static int
nfs4_populate_getfh(struct nfs4_cb_data *data, nfs_argop4 *op)
{
return nfs4_op_getfh(data->nfs, op);
}
static int
nfs4_populate_getattr(struct nfs4_cb_data *data, nfs_argop4 *op)
{
return nfs4_op_getfh(data->nfs, op);
}
static int
nfs4_populate_access(struct nfs4_cb_data *data, nfs_argop4 *op)
{
uint32_t mode;
memcpy(&mode, data->filler.blob3.val, sizeof(uint32_t));
return nfs4_op_access(data->nfs, op, mode);
}
static void
nfs4_mount_4_cb(struct rpc_context *rpc, int status, void *command_data,
void *private_data)
{
struct nfs4_cb_data *data = private_data;
struct nfs_context *nfs = data->nfs;
COMPOUND4res *res = command_data;
GETFH4resok *gfhresok;
int i;
assert(rpc->magic == RPC_CONTEXT_MAGIC);
if (check_nfs4_error(nfs, status, data, res, "GETFH")) {
return;
}
if ((i = nfs4_find_op(nfs, data, res, OP_GETFH, "GETFH")) < 0) {
return;
}
gfhresok = &res->resarray.resarray_val[i].nfs_resop4_u.opgetfh.GETFH4res_u.resok4;
nfs->nfsi->rootfh.len = gfhresok->object.nfs_fh4_len;
nfs->nfsi->rootfh.val = malloc(nfs->nfsi->rootfh.len);
if (nfs->nfsi->rootfh.val == NULL) {
nfs_set_error(nfs, "%s: %s", __FUNCTION__, nfs_get_error(nfs));
data->cb(-ENOMEM, nfs, nfs_get_error(nfs), data->private_data);
free_nfs4_cb_data(data);
return;
}
memcpy(nfs->nfsi->rootfh.val,
gfhresok->object.nfs_fh4_val,
nfs->nfsi->rootfh.len);
data->cb(0, nfs, NULL, data->private_data);
free_nfs4_cb_data(data);
}
static void
nfs4_mount_3_cb(struct rpc_context *rpc, int status, void *command_data,
void *private_data)
{
struct nfs4_cb_data *data = private_data;
struct nfs_context *nfs = data->nfs;
COMPOUND4res *res = command_data;
assert(rpc->magic == RPC_CONTEXT_MAGIC);
if (check_nfs4_error(nfs, status, data, res, "SETCLIENTID_CONFIRM")) {
return;
}
data->filler.func = nfs4_populate_getfh;
data->filler.max_op = 1;
data->filler.data = malloc(2 * sizeof(uint32_t));
if (data->filler.data == NULL) {
nfs_set_error(nfs, "Out of memory. Failed to allocate "
"data structure.");
data->cb(-ENOMEM, nfs, res, data->private_data);
free_nfs4_cb_data(data);
return;
}
memset(data->filler.data, 0, 2 * sizeof(uint32_t));
if (nfs4_lookup_path_async(nfs, data, nfs4_mount_4_cb) < 0) {
data->cb(-ENOMEM, nfs, res, data->private_data);
free_nfs4_cb_data(data);
return;
}
}
static void
nfs4_mount_2_cb(struct rpc_context *rpc, int status, void *command_data,
void *private_data)
{
struct nfs4_cb_data *data = private_data;
struct nfs_context *nfs = data->nfs;
COMPOUND4res *res = command_data;
COMPOUND4args args;
nfs_argop4 op[1];
SETCLIENTID4resok *scidresok;
int i;
assert(rpc->magic == RPC_CONTEXT_MAGIC);
if (check_nfs4_error(nfs, status, data, res, "SETCLIENTID")) {
return;
}
scidresok = &res->resarray.resarray_val[0].nfs_resop4_u.opsetclientid.SETCLIENTID4res_u.resok4;
nfs->nfsi->clientid = scidresok->clientid;
memcpy(nfs->nfsi->setclientid_confirm,
scidresok->setclientid_confirm,
NFS4_VERIFIER_SIZE);
memset(op, 0, sizeof(op));
i = nfs4_op_setclientid_confirm(nfs, &op[0], nfs->nfsi->clientid,
nfs->nfsi->setclientid_confirm);
memset(&args, 0, sizeof(args));
args.argarray.argarray_len = i;
args.argarray.argarray_val = op;
if (rpc_nfs4_compound_async(rpc, nfs4_mount_3_cb, &args,
private_data) != 0) {
nfs_set_error(nfs, "Failed to queue SETCLIENTID_CONFIRM. %s",
nfs_get_error(nfs));
data->cb(-ENOMEM, nfs, nfs_get_error(nfs), data->private_data);
free_nfs4_cb_data(data);
return;
}
}
static void
nfs4_mount_1_cb(struct rpc_context *rpc, int status, void *command_data,
void *private_data)
{
struct nfs4_cb_data *data = private_data;
struct nfs_context *nfs = data->nfs;
COMPOUND4args args;
nfs_argop4 op[1];
int i;
assert(rpc->magic == RPC_CONTEXT_MAGIC);
if (check_nfs4_error(nfs, status, data, NULL, "CONNECT")) {
return;
}
memset(op, 0, sizeof(op));
i = nfs4_op_setclientid(nfs, &op[0], nfs->nfsi->verifier, nfs->nfsi->client_name);
memset(&args, 0, sizeof(args));
args.argarray.argarray_len = i;
args.argarray.argarray_val = op;
if (rpc_nfs4_compound_async(rpc, nfs4_mount_2_cb, &args, data) != 0) {
nfs_set_error(nfs, "Failed to queue SETCLIENTID. %s",
nfs_get_error(nfs));
data->cb(-ENOMEM, nfs, nfs_get_error(nfs), data->private_data);
free_nfs4_cb_data(data);
return;
}
}
int
nfs4_mount_async(struct nfs_context *nfs, const char *server,
const char *export, nfs_cb cb, void *private_data)
{
struct nfs4_cb_data *data;
char *new_server, *new_export;
int port;
new_server = strdup(server);
free(nfs->nfsi->server);
nfs->nfsi->server = new_server;
new_export = strdup(export);
if (nfs_normalize_path(nfs, new_export)) {
nfs_set_error(nfs, "Bad export path. %s",
nfs_get_error(nfs));
free(new_export);
return -1;
}
free(nfs->nfsi->export);
nfs->nfsi->export = new_export;
data = malloc(sizeof(*data));
if (data == NULL) {
nfs_set_error(nfs, "Out of memory. Failed to allocate "
"memory for nfs mount data");
return -1;
}
memset(data, 0, sizeof(*data));
data->nfs = nfs;
data->cb = cb;
data->private_data = private_data;
data->path = strdup(new_export);
port = nfs->nfsi->nfsport ? nfs->nfsi->nfsport : 2049;
if (rpc_connect_port_async(nfs->rpc, server, port,
NFS4_PROGRAM, NFS_V4,
nfs4_mount_1_cb, data) != 0) {
nfs_set_error(nfs, "Failed to start connection. %s",
nfs_get_error(nfs));
free_nfs4_cb_data(data);
return -1;
}
return 0;
}
static void
nfs4_chdir_1_cb(struct rpc_context *rpc, int status, void *command_data,
void *private_data)
{
struct nfs4_cb_data *data = private_data;
struct nfs_context *nfs = data->nfs;
COMPOUND4res *res = command_data;
assert(rpc->magic == RPC_CONTEXT_MAGIC);
if (check_nfs4_error(nfs, status, data, res, "CHDIR")) {
return;
}
/* Ok, all good. Lets steal the path string. */
nfs_mt_mutex_lock(&nfs->rpc->rpc_mutex);
free(nfs->nfsi->cwd);
nfs->nfsi->cwd = data->path;
nfs_mt_mutex_unlock(&nfs->rpc->rpc_mutex);
data->path = NULL;
data->cb(0, nfs, NULL, data->private_data);
free_nfs4_cb_data(data);
}
int nfs4_chdir_async(struct nfs_context *nfs, const char *path,
nfs_cb cb, void *private_data)
{
struct nfs4_cb_data *data;
data = init_cb_data_full_path(nfs, path);
if (data == NULL) {
return -1;
}
data->cb = cb;
data->private_data = private_data;
data->filler.func = nfs4_populate_getattr;
data->filler.max_op = 1;
data->filler.data = malloc(2 * sizeof(uint32_t));
if (data->filler.data == NULL) {
nfs_set_error(nfs, "Out of memory. Failed to allocate "
"data structure.");
data->cb(-ENOMEM, nfs, nfs_get_error(nfs), data->private_data);
free_nfs4_cb_data(data);
return -1;
}
memset(data->filler.data, 0, 2 * sizeof(uint32_t));
if (nfs4_lookup_path_async(nfs, data, nfs4_chdir_1_cb) < 0) {
free_nfs4_cb_data(data);
return -1;
}
return 0;
}
static void
nfs4_xstat64_cb(struct rpc_context *rpc, int status, void *command_data,
void *private_data)
{
struct nfs4_cb_data *data = private_data;
struct nfs_context *nfs = data->nfs;
COMPOUND4res *res = command_data;
GETATTR4resok *garesok;
struct nfs_stat_64 st;
int i;
assert(rpc->magic == RPC_CONTEXT_MAGIC);
if (check_nfs4_error(nfs, status, data, res, "STAT64")) {
return;
}
if ((i = nfs4_find_op(nfs, data, res, OP_GETATTR, "GETATTR")) < 0) {
return;
}
garesok = &res->resarray.resarray_val[i].nfs_resop4_u.opgetattr.GETATTR4res_u.resok4;
memset(&st, 0, sizeof(st));
if (nfs_parse_attributes(nfs, data, &st,
garesok->obj_attributes.attr_vals.attrlist4_val,
garesok->obj_attributes.attr_vals.attrlist4_len) < 0) {
data->cb(-EINVAL, nfs, nfs_get_error(nfs), data->private_data);
free_nfs4_cb_data(data);
}
data->cb(0, nfs, &st, data->private_data);
free_nfs4_cb_data(data);
}
int
nfs4_stat64_async(struct nfs_context *nfs, const char *path,
int no_follow, nfs_cb cb, void *private_data)
{
struct nfs4_cb_data *data;
data = init_cb_data_full_path(nfs, path);
if (data == NULL) {
return -1;
}
if (no_follow) {
data->flags |= LOOKUP_FLAG_NO_FOLLOW;
}
data->cb = cb;
data->private_data = private_data;
data->filler.func = nfs4_populate_getattr;
data->filler.max_op = 1;
data->filler.data = malloc(2 * sizeof(uint32_t));
if (data->filler.data == NULL) {
nfs_set_error(nfs, "Out of memory. Failed to allocate "
"data structure.");
data->cb(-ENOMEM, nfs, nfs_get_error(nfs), data->private_data);
free_nfs4_cb_data(data);
return -1;
}
memset(data->filler.data, 0, 2 * sizeof(uint32_t));
if (nfs4_lookup_path_async(nfs, data, nfs4_xstat64_cb) < 0) {
free_nfs4_cb_data(data);
return -1;
}
return 0;
}
/* Takes object name as filler.data
* blob0 as the fattr4 attribute mask
* blob1 as the fattr4 attribute list
*/
static int
nfs4_populate_mkdir(struct nfs4_cb_data *data, nfs_argop4 *op)
{
struct nfs_context *nfs = data->nfs;
return nfs4_op_create(nfs, op, data->filler.data, NF4DIR,
&data->filler.blob0, &data->filler.blob1,
NULL, 0);
}
static void
nfs4_mkdir_cb(struct rpc_context *rpc, int status, void *command_data,
void *private_data)
{
struct nfs4_cb_data *data = private_data;
struct nfs_context *nfs = data->nfs;
COMPOUND4res *res = command_data;
assert(rpc->magic == RPC_CONTEXT_MAGIC);
if (check_nfs4_error(nfs, status, data, res, "MKDIR")) {
return;
}
data->cb(0, nfs, NULL, data->private_data);
free_nfs4_cb_data(data);
}
int
nfs4_mkdir2_async(struct nfs_context *nfs, const char *path, int mode,
nfs_cb cb, void *private_data)
{
struct nfs4_cb_data *data;
uint32_t *u32ptr;
data = init_cb_data_split_path(nfs, path);
if (data == NULL) {
return -1;
}
data->cb = cb;
data->private_data = private_data;
data->filler.func = nfs4_populate_mkdir;
data->filler.max_op = 1;
/* attribute mask */
u32ptr = malloc(2 * sizeof(uint32_t));
if (u32ptr == NULL) {
nfs_set_error(nfs, "Out of memory allocating bitmap");
free_nfs4_cb_data(data);
return -1;
}
u32ptr[0] = 0;
u32ptr[1] = 1 << (FATTR4_MODE - 32);
data->filler.blob0.len = 2;
data->filler.blob0.val = u32ptr;
data->filler.blob0.free = free;
/* attribute values */
u32ptr = malloc(1 * sizeof(uint32_t));
if (u32ptr == NULL) {
nfs_set_error(nfs, "Out of memory allocating attributes");
free_nfs4_cb_data(data);
return -1;
}
u32ptr[0] = htonl(mode);
data->filler.blob1.len = 4;
data->filler.blob1.val = u32ptr;
data->filler.blob1.free = free;
if (nfs4_lookup_path_async(nfs, data, nfs4_mkdir_cb) < 0) {
free_nfs4_cb_data(data);
return -1;
}
return 0;
}
/* Takes object name as filler.data
*/
static int
nfs4_populate_remove(struct nfs4_cb_data *data, nfs_argop4 *op)
{
struct nfs_context *nfs = data->nfs;
return nfs4_op_remove(nfs, op, data->filler.data);
}
static void
nfs4_remove_cb(struct rpc_context *rpc, int status, void *command_data,
void *private_data)
{
struct nfs4_cb_data *data = private_data;
struct nfs_context *nfs = data->nfs;
COMPOUND4res *res = command_data;
assert(rpc->magic == RPC_CONTEXT_MAGIC);
if (check_nfs4_error(nfs, status, data, res, "REMOVE")) {
return;
}
data->cb(0, nfs, NULL, data->private_data);
free_nfs4_cb_data(data);
}
static int
nfs4_remove_async(struct nfs_context *nfs, const char *path,
nfs_cb cb, void *private_data)
{
struct nfs4_cb_data *data;
data = init_cb_data_split_path(nfs, path);
if (data == NULL) {
return -1;
}
data->cb = cb;
data->private_data = private_data;
data->filler.func = nfs4_populate_remove;
data->filler.max_op = 1;
if (nfs4_lookup_path_async(nfs, data, nfs4_remove_cb) < 0) {
free_nfs4_cb_data(data);
return -1;
}
return 0;
}
int
nfs4_rmdir_async(struct nfs_context *nfs, const char *path,
nfs_cb cb, void *private_data)
{
return nfs4_remove_async(nfs, path, cb, private_data);
}
static void
nfs_increment_seqid(struct nfsfh *nfsfh, uint32_t status)
{
/* RFC3530 8.1.5 */
switch (status) {
case NFS4ERR_STALE_CLIENTID:
case NFS4ERR_STALE_STATEID:
case NFS4ERR_BAD_STATEID:
case NFS4ERR_BAD_SEQID:
case NFS4ERR_BADZDR:
case NFS4ERR_RESOURCE:
case NFS4ERR_NOFILEHANDLE:
break;
default:
nfsfh->open_seqid++;
}
}
static void
nfs4_open_setattr_cb(struct rpc_context *rpc, int status, void *command_data,
void *private_data)
{
struct nfs4_cb_data *data = private_data;
struct nfs_context *nfs = data->nfs;
COMPOUND4res *res = command_data;
struct nfsfh *fh;
assert(rpc->magic == RPC_CONTEXT_MAGIC);
if (check_nfs4_error(nfs, status, data, res, "SETATTR")) {
return;
}
fh = data->filler.blob0.val;
data->filler.blob0.val = NULL;
data->cb(0, nfs, fh, data->private_data);
free_nfs4_cb_data(data);
}
static void
nfs4_open_truncate_cb(struct rpc_context *rpc, int status, void *command_data,
void *private_data)
{
struct nfs4_cb_data *data = private_data;
struct nfs_context *nfs = data->nfs;
struct nfsfh *fh = data->filler.blob0.val;
COMPOUND4res *res = command_data;
COMPOUND4args args;
nfs_argop4 op[2];
int i;
if (check_nfs4_error(nfs, status, data, res, "OPEN")) {
return;
}
i = nfs4_op_putfh(nfs, op, fh);
i += nfs4_op_truncate(nfs, &op[i], fh, data->filler.blob3.val);
memset(&args, 0, sizeof(args));
args.argarray.argarray_len = i;
args.argarray.argarray_val = op;
if (rpc_nfs4_compound_async(nfs->rpc, nfs4_open_setattr_cb, &args,
data) != 0) {
data->cb(-ENOMEM, nfs, nfs_get_error(nfs), data->private_data);
free_nfs4_cb_data(data);
return;
}
}
static void
nfs4_open_chmod_cb(struct rpc_context *rpc, int status, void *command_data,
void *private_data)
{
struct nfs4_cb_data *data = private_data;
struct nfs_context *nfs = data->nfs;
struct nfsfh *fh = data->filler.blob0.val;
COMPOUND4res *res = command_data;
COMPOUND4args args;
nfs_argop4 op[2];
int i;
if (check_nfs4_error(nfs, status, data, res, "OPEN")) {
return;
}
i = nfs4_op_putfh(nfs, op, fh);
i += nfs4_op_chmod(nfs, &op[i], fh, data->filler.blob3.val);
memset(&args, 0, sizeof(args));
args.argarray.argarray_len = i;
args.argarray.argarray_val = op;
if (rpc_nfs4_compound_async(nfs->rpc, nfs4_open_setattr_cb, &args,
data) != 0) {
data->cb(-ENOMEM, nfs, nfs_get_error(nfs), data->private_data);
free_nfs4_cb_data(data);
return;
}
}
static void
nfs4_open_confirm_cb(struct rpc_context *rpc, int status, void *command_data,
void *private_data)
{
struct nfs4_cb_data *data = private_data;
struct nfs_context *nfs = data->nfs;
COMPOUND4res *res = command_data;
OPEN_CONFIRM4resok *ocresok;
int i;
struct nfsfh *fh = data->filler.blob0.val;
assert(rpc->magic == RPC_CONTEXT_MAGIC);
if (res) {
nfs_increment_seqid(fh, res->status);
}
if (check_nfs4_error(nfs, status, data, res, "OPEN_CONFIRM")) {
return;
}
if ((i = nfs4_find_op(nfs, data, res, OP_OPEN_CONFIRM,
"OPEN_CONFIRM")) < 0) {
return;
}
ocresok = &res->resarray.resarray_val[i].nfs_resop4_u.opopen_confirm.OPEN_CONFIRM4res_u.resok4;
fh = data->filler.blob0.val;
fh->stateid.seqid = ocresok->open_stateid.seqid;
memcpy(fh->stateid.other, ocresok->open_stateid.other, 12);
if (data->open_cb) {
data->open_cb(rpc, status, command_data, private_data);
return;
}
data->filler.blob0.val = NULL;
data->cb(0, nfs, fh, data->private_data);
free_nfs4_cb_data(data);
}
static void
nfs4_open_cb(struct rpc_context *rpc, int status, void *command_data,
void *private_data)
{
struct nfs4_cb_data *data = private_data;
struct nfs_context *nfs = data->nfs;
COMPOUND4res *res = command_data;
ACCESS4resok *aresok;
OPEN4resok *oresok;
GETFH4resok *gresok;
int i;
struct nfsfh *fh;
assert(rpc->magic == RPC_CONTEXT_MAGIC);
if (check_nfs4_error(nfs, status, data, res, "OPEN")) {
return;
}
/* Parse Access and check that we have the access that we need */
if ((i = nfs4_find_op(nfs, data, res, OP_ACCESS, "ACCESS")) < 0) {
return;
}
aresok = &res->resarray.resarray_val[i].nfs_resop4_u.opaccess.ACCESS4res_u.resok4;
if (aresok->supported != aresok->access) {
nfs_set_error(nfs, "Insufficient ACCESS. Wanted %08x but "
"got %08x.", aresok->access, aresok->supported);
data->cb(-EINVAL, nfs, nfs_get_error(nfs), data->private_data);
free_nfs4_cb_data(data);
return;
}
/* Parse GetFH */
if ((i = nfs4_find_op(nfs, data, res, OP_GETFH, "GETFH")) < 0) {
return;
}
gresok = &res->resarray.resarray_val[i].nfs_resop4_u.opgetfh.GETFH4res_u.resok4;
fh = malloc(sizeof(*fh));
if (fh == NULL) {
nfs_set_error(nfs, "Out of memory. Failed to allocate "
"nfsfh");
data->cb(-ENOMEM, nfs, nfs_get_error(nfs), data->private_data);
free_nfs4_cb_data(data);
return;
}
memset(fh, 0 , sizeof(*fh));
data->filler.blob0.val = fh;
data->filler.blob0.free = (blob_free)nfs_free_nfsfh;
fh->fh.len = gresok->object.nfs_fh4_len;
fh->fh.val = malloc(fh->fh.len);
if (fh->fh.val == NULL) {
nfs_set_error(nfs, "Out of memory. Failed to allocate "
"nfsfh");
data->cb(-ENOMEM, nfs, nfs_get_error(nfs), data->private_data);
free_nfs4_cb_data(data);
return;
}
memcpy(fh->fh.val, gresok->object.nfs_fh4_val, fh->fh.len);
fh->open_seqid = 1;
fh->lock_owner = data->lock_owner;
if (data->filler.flags & O_SYNC) {
fh->is_sync = 1;
}
if (data->filler.flags & O_APPEND) {
fh->is_append = 1;
}
/* Parse Open */
if ((i = nfs4_find_op(nfs, data, res, OP_OPEN, "OPEN")) < 0) {
return;
}
oresok = &res->resarray.resarray_val[i].nfs_resop4_u.opopen.OPEN4res_u.resok4;
fh->stateid.seqid = oresok->stateid.seqid;
memcpy(fh->stateid.other, oresok->stateid.other, 12);
if (oresok->rflags & OPEN4_RESULT_CONFIRM) {
COMPOUND4args args;
nfs_argop4 op[2];
memset(op, 0, sizeof(op));
i = nfs4_op_putfh(nfs, &op[0], fh);
i += nfs4_op_open_confirm(nfs, &op[i], fh);
memset(&args, 0, sizeof(args));
args.argarray.argarray_len = i;
args.argarray.argarray_val = op;
if (rpc_nfs4_compound_async(rpc, nfs4_open_confirm_cb, &args,
private_data) != 0) {
data->cb(-ENOMEM, nfs, nfs_get_error(nfs),
data->private_data);
free_nfs4_cb_data(data);
return;
}
return;
}
if (data->open_cb) {
data->open_cb(rpc, status, command_data, private_data);
return;
}
data->filler.blob0.val = NULL;
data->cb(0, nfs, fh, data->private_data);
free_nfs4_cb_data(data);
}
static void
nfs4_init_random_verifier(char *verifier)
{
static uint64_t seed = 0, v;
int i;
if (seed == 0) {
seed = ~rpc_current_time() << 32 | getpid();
} else {
seed *= 1337;
}
v = seed;
for (i = 0; i < NFS4_VERIFIER_SIZE; i++) {
verifier[i] = v & 0xff;
v >>= 8;
}
}
/* filler.flags are the open flags
* filler.data is the object name
*/
static int
nfs4_populate_open(struct nfs4_cb_data *data, nfs_argop4 *op)
{
struct nfs_context *nfs = data->nfs;
OPEN4args *oargs;
uint32_t access_mask = 0;
verifier4 verifier;
int i;
if (data->filler.flags & O_WRONLY) {
access_mask |= ACCESS4_MODIFY;
}
if (data->filler.flags & O_RDWR) {
access_mask |= ACCESS4_READ|ACCESS4_MODIFY;
}
if (!(data->filler.flags & O_WRONLY)) {
access_mask |= ACCESS4_READ;
}
/* Access */
i = nfs4_op_access(nfs, &op[0], access_mask);
/* Open */
op[i].argop = OP_OPEN;
oargs = &op[i++].nfs_argop4_u.opopen;
memset(oargs, 0, sizeof(*oargs));
if (access_mask & ACCESS4_READ) {
oargs->share_access |= OPEN4_SHARE_ACCESS_READ;
}
if (access_mask & ACCESS4_MODIFY) {
oargs->share_access |= OPEN4_SHARE_ACCESS_WRITE;
}
oargs->share_deny = OPEN4_SHARE_DENY_NONE;
oargs->owner.clientid = nfs->nfsi->clientid;
oargs->owner.owner.owner_len = 4;
oargs->owner.owner.owner_val = (char *)&data->lock_owner;
oargs->seqid = 0;
if (data->filler.flags & O_CREAT) {
createhow4 *ch;
fattr4 *fa;
ch = &oargs->openhow.openflag4_u.how;
fa = &ch->createhow4_u.createattrs;
oargs->openhow.opentype = OPEN4_CREATE;
if (data->filler.flags|O_EXCL) {
ch->mode = EXCLUSIVE4;
nfs4_init_random_verifier(&verifier[0]);
memcpy(ch->createhow4_u.createverf, verifier,
sizeof(verifier4));
} else {
ch->mode = UNCHECKED4;
fa->attrmask.bitmap4_len = data->filler.blob1.len;
fa->attrmask.bitmap4_val = data->filler.blob1.val;
fa->attr_vals.attrlist4_len = data->filler.blob2.len;
fa->attr_vals.attrlist4_val = data->filler.blob2.val;
}
} else {
oargs->openhow.opentype = OPEN4_NOCREATE;
}
oargs->claim.claim = CLAIM_NULL;
oargs->claim.open_claim4_u.file.utf8string_len =
strlen(data->filler.data);
oargs->claim.open_claim4_u.file.utf8string_val =
data->filler.data;
/* GetFH */
i += nfs4_op_getfh(nfs, &op[i]);
return i;
}
static void
nfs4_open_readlink_cb(struct rpc_context *rpc, int status, void *command_data,
void *private_data)
{
struct nfs4_cb_data *data = private_data;
struct nfs_context *nfs = data->nfs;
COMPOUND4res *res = command_data;
READLINK4resok *rlresok;
int i;
char *path;
assert(rpc->magic == RPC_CONTEXT_MAGIC);
if (check_nfs4_error(nfs, status, data, res, "READLINK")) {
return;
}
if ((i = nfs4_find_op(nfs, data, res, OP_READLINK, "READLINK")) < 0) {
return;
}
rlresok = &res->resarray.resarray_val[i].nfs_resop4_u.opreadlink.READLINK4res_u.resok4;
path = malloc(2 + strlen(data->path) +
rlresok->link.utf8string_len);
if (path == NULL) {
nfs_set_error(nfs, "Out of memory. Failed to allocate "
"path");
data->cb(-ENOMEM, nfs, nfs_get_error(nfs),
data->private_data);
free_nfs4_cb_data(data);
return;
}
sprintf(path, "%s/%.*s", data->path,
rlresok->link.utf8string_len, rlresok->link.utf8string_val);
free(data->path);
data->path = NULL;
free(data->filler.data);
data->filler.data = NULL;
data->path = nfs4_resolve_path(nfs, path);
free(path);
if (data->path == NULL) {
data->cb(-EINVAL, nfs, nfs_get_error(nfs),
data->private_data);
free_nfs4_cb_data(data);
return;
}
data_split_path(data);
#ifdef HAVE_MULTITHREADING
nfs_mt_mutex_lock(&data->nfs->nfsi->nfs4_open_mutex);
data->lock_owner = nfs->nfsi->open_counter++;
nfs_mt_mutex_unlock(&data->nfs->nfsi->nfs4_open_mutex);
#else
data->lock_owner = nfs->nfsi->open_counter++;
#endif
data->filler.func = nfs4_populate_open;
data->filler.max_op = 3;
if (nfs4_lookup_path_async(nfs, data, nfs4_open_cb) < 0) {
data->cb(-ENOMEM, nfs, res, data->private_data);
free_nfs4_cb_data(data);
return;
}
}
static int
nfs4_populate_lookup_readlink(struct nfs4_cb_data *data, nfs_argop4 *op)
{
struct nfs_context *nfs = data->nfs;
int i;
i = nfs4_op_lookup(nfs, &op[0], data->filler.data);
i += nfs4_op_readlink(nfs, &op[i]);
return i;
}
/* If the final component in the open was a symlink we need to resolve it and
* re-try the nfs4_open_async()
*/
static int
nfs4_open_readlink(struct rpc_context *rpc, COMPOUND4res *res,
struct nfs4_cb_data *data)
{
struct nfs_context *nfs = data->nfs;
int i;
for (i = 0; i < (int)res->resarray.resarray_len; i++) {
OPEN4res *ores;
if (res->resarray.resarray_val[i].resop != OP_OPEN) {
continue;
}
ores = &res->resarray.resarray_val[i].nfs_resop4_u.opopen;
if (ores->status != NFS4ERR_SYMLINK) {
continue;
}
if (data->filler.flags & O_NOFOLLOW) {
nfs_set_error(nfs, "Symlink encountered during "
"open(O_NOFOLLOW)");
data->cb(-ELOOP, nfs, nfs_get_error(nfs),
data->private_data);
return -1;
}
/* The object we need to do readlink on is already stored in
* data->filler.data so *populate* can just grab it from there.
*/
data->filler.func = nfs4_populate_lookup_readlink;
data->filler.max_op = 2;
if (nfs4_lookup_path_async(nfs, data,
nfs4_open_readlink_cb) < 0) {
data->cb(-ENOMEM, nfs, nfs_get_error(nfs),
data->private_data);
free_nfs4_cb_data(data);
return -1;
}
return -1;
}
return 0;
}
/*
* data.blob0 is used for nfsfh
* data.blob1 is used for the attribute mask in case on O_CREAT
* data.blob2 is the attribute value in case of O_CREAT
*/
static int
nfs4_open_async_internal(struct nfs_context *nfs, struct nfs4_cb_data *data,
int flags, int mode)
{
if (flags & O_APPEND && !(flags & (O_RDWR|O_WRONLY))) {
flags &= ~O_APPEND;
}
if (flags & O_CREAT) {
uint32_t *d;
/* Attribute mask */
d = malloc(2 * sizeof(uint32_t));
if (d == NULL) {
nfs_set_error(nfs, "Out of memory");
free_nfs4_cb_data(data);
return -1;
}
d[0] = 0;
d[1] = 1 << (FATTR4_MODE - 32);
data->filler.blob1.val = d;
data->filler.blob1.len = 2;
data->filler.blob1.free = free;
/* Attribute value */
d = malloc(sizeof(uint32_t));
if (d == NULL) {
nfs_set_error(nfs, "Out of memory");
free_nfs4_cb_data(data);
return -1;
}
*d = htonl(mode);
data->filler.blob2.val = d;
data->filler.blob2.len = 4;
data->filler.blob2.free = free;
}
#ifdef HAVE_MULTITHREADING
nfs_mt_mutex_lock(&data->nfs->nfsi->nfs4_open_mutex);
#endif
data->lock_owner = nfs->nfsi->open_counter++;
#ifdef HAVE_MULTITHREADING
nfs_mt_mutex_unlock(&data->nfs->nfsi->nfs4_open_mutex);
#endif
data->filler.func = nfs4_populate_open;
data->filler.max_op = 3;
data->filler.flags = flags;
if (nfs4_lookup_path_async(nfs, data, nfs4_open_cb) < 0) {
free_nfs4_cb_data(data);
return -1;
}
return 0;
}
int
nfs4_open_async(struct nfs_context *nfs, const char *path, int flags,
int mode, nfs_cb cb, void *private_data)
{
struct nfs4_cb_data *data;
uint32_t m;
int ret;
data = init_cb_data_split_path(nfs, path);
if (data == NULL) {
return -1;
}
data->cb = cb;
data->private_data = private_data;
/* O_TRUNC is only valid for O_RDWR or O_WRONLY */
if (flags & O_TRUNC && !(flags & (O_RDWR|O_WRONLY))) {
flags &= ~O_TRUNC;
}
/* Successful O_EXCL means the file is 0 size already. */
if (flags & O_EXCL) {
flags &= ~O_TRUNC;
}
if (flags & O_TRUNC) {
data->open_cb = nfs4_open_truncate_cb;
data->filler.blob3.val = malloc(12);
if (data->filler.blob3.val == NULL) {
nfs_set_error(nfs, "Out of memory");
free_nfs4_cb_data(data);
return -1;
}
data->filler.blob3.free = free;
memset(data->filler.blob3.val, 0, 12);
}
if (flags & O_EXCL) {
data->open_cb = nfs4_open_chmod_cb;
data->filler.blob3.val = malloc(4);
if (data->filler.blob3.val == NULL) {
nfs_set_error(nfs, "Out of memory");
free_nfs4_cb_data(data);
return -1;
}
data->filler.blob3.free = free;
m = htonl(mode);
memcpy(data->filler.blob3.val, &m, sizeof(uint32_t));
}
ret = nfs4_open_async_internal(nfs, data, flags, mode);
return ret;
}
int
nfs4_fstat64_async(struct nfs_context *nfs, struct nfsfh *nfsfh, nfs_cb cb,
void *private_data)
{
COMPOUND4args args;
nfs_argop4 op[2];
struct nfs4_cb_data *data;
int i;
data = malloc(sizeof(*data));
if (data == NULL) {
nfs_set_error(nfs, "Out of memory. Failed to allocate "
"cb data");
return -1;
}
memset(data, 0, sizeof(*data));
data->nfs = nfs;
data->cb = cb;
data->private_data = private_data;
i = nfs4_op_putfh(nfs, &op[0], nfsfh);
i += nfs4_op_getattr(nfs, &op[i], standard_attributes, 2);
memset(&args, 0, sizeof(args));
args.argarray.argarray_len = i;
args.argarray.argarray_val = op;
if (rpc_nfs4_compound_async(nfs->rpc, nfs4_xstat64_cb, &args,
data) != 0) {
free_nfs4_cb_data(data);
return -1;
}
return 0;
}
static void
nfs4_getacl_cb(struct rpc_context *rpc, int status, void *command_data,
void *private_data)
{
struct nfs4_cb_data *data = private_data;
struct nfs_context *nfs = data->nfs;
COMPOUND4res *res = command_data;
GETATTR4resok *garesok;
fattr4_acl acl;
ZDR zdr;
int i;
assert(rpc->magic == RPC_CONTEXT_MAGIC);
if (check_nfs4_error(nfs, status, data, res, "GETACL")) {
data->cb(-EIO, nfs, "GETACL failed", data->private_data);
free_nfs4_cb_data(data);
return;
}
if ((i = nfs4_find_op(nfs, data, res, OP_GETATTR, "GETATTR")) < 0) {
data->cb(-EIO, nfs, "GETACL failed", data->private_data);
free_nfs4_cb_data(data);
return;
}
garesok = &res->resarray.resarray_val[i].nfs_resop4_u.opgetattr.GETATTR4res_u.resok4;
memset(&acl, 0, sizeof(acl));
zdrmem_create(&zdr,
garesok->obj_attributes.attr_vals.attrlist4_val,
garesok->obj_attributes.attr_vals.attrlist4_len,
ZDR_DECODE);
if (zdr_fattr4_acl(&zdr, &acl)) {
data->cb(0, nfs, &acl, data->private_data);
} else {
data->cb(-EIO, nfs, "Failed to unmarshall fattr4_acl", data->private_data);
}
zdr_destroy(&zdr);
free_nfs4_cb_data(data);
}
int
nfs4_getacl_async(struct nfs_context *nfs, struct nfsfh *nfsfh, nfs_cb cb,
void *private_data)
{
COMPOUND4args args;
nfs_argop4 op[2];
struct nfs4_cb_data *data;
int i;
data = malloc(sizeof(*data));
if (data == NULL) {
nfs_set_error(nfs, "Out of memory. Failed to allocate "
"cb data");
return -1;
}
memset(data, 0, sizeof(*data));
data->nfs = nfs;
data->cb = cb;
data->private_data = private_data;
i = nfs4_op_putfh(nfs, &op[0], nfsfh);
i += nfs4_op_getattr(nfs, &op[i], getacl_attributes, 1);
memset(&args, 0, sizeof(args));
args.argarray.argarray_len = i;
args.argarray.argarray_val = op;
if (rpc_nfs4_compound_async(nfs->rpc, nfs4_getacl_cb, &args,
data) != 0) {
free_nfs4_cb_data(data);
return -1;
}
return 0;
}
static void
nfs4_close_cb(struct rpc_context *rpc, int status, void *command_data,
void *private_data)
{
struct nfs4_cb_data *data = private_data;
struct nfs_context *nfs = data->nfs;
COMPOUND4res *res = command_data;
struct nfsfh *nfsfh = data->filler.blob0.val;
assert(rpc->magic == RPC_CONTEXT_MAGIC);
if (res) {
nfs_increment_seqid(nfsfh, res->status);
}
if (check_nfs4_error(nfs, status, data, res, "CLOSE")) {
return;
}
data->cb(0, nfs, NULL, data->private_data);
free_nfs4_cb_data(data);
}
int
nfs4_close_async(struct nfs_context *nfs, struct nfsfh *nfsfh, nfs_cb cb,
void *private_data)
{
COMPOUND4args args;
nfs_argop4 op[4];
struct nfs4_cb_data *data;
int i;
data = malloc(sizeof(*data));
if (data == NULL) {
nfs_set_error(nfs, "Out of memory. Failed to allocate "
"cb data");
return -1;
}
memset(data, 0, sizeof(*data));
data->nfs = nfs;
data->cb = cb;
data->private_data = private_data;
memset(op, 0, sizeof(op));
i = nfs4_op_putfh(nfs, &op[0], nfsfh);
i += nfs4_op_close(nfs, &op[i], nfsfh);
data->filler.blob0.val = nfsfh;
data->filler.blob0.free = (blob_free)nfs_free_nfsfh;
memset(&args, 0, sizeof(args));
args.argarray.argarray_len = i;
args.argarray.argarray_val = op;
if (rpc_nfs4_compound_async(nfs->rpc, nfs4_close_cb, &args,
data) != 0) {
data->filler.blob0.val = NULL;
free_nfs4_cb_data(data);
return -1;
}
return 0;
}
static void
nfs4_pread_cb(struct rpc_context *rpc, int status, void *command_data,
void *private_data)
{
struct nfs4_cb_data *data = private_data;
struct nfs_context *nfs = data->nfs;
COMPOUND4res *res = command_data;
READ4resok *rres = NULL;
struct nfsfh *nfsfh;
int i;
assert(rpc->magic == RPC_CONTEXT_MAGIC);
nfsfh = data->filler.blob0.val;
if (check_nfs4_error(nfs, status, data, res, "READ")) {
return;
}
if ((i = nfs4_find_op(nfs, data, res, OP_READ, "READ")) < 0) {
return;
}
rres = &res->resarray.resarray_val[i].nfs_resop4_u.opread.READ4res_u.resok4;
if (data->rw_data.update_pos) {
nfsfh->offset = data->rw_data.offset + rres->data.data_len;
}
data->cb(rres->data.data_len, nfs, rres->data.data_val,
data->private_data);
free_nfs4_cb_data(data);
}
int
nfs4_pread_async_internal(struct nfs_context *nfs, struct nfsfh *nfsfh,
uint64_t offset, size_t count, nfs_cb cb,
void *private_data, int update_pos)
{
COMPOUND4args args;
nfs_argop4 op[2];
struct nfs4_cb_data *data;
int i;
data = malloc(sizeof(*data));
if (data == NULL) {
nfs_set_error(nfs, "Out of memory. Failed to allocate "
"cb data");
return -1;
}
memset(data, 0, sizeof(*data));
data->nfs = nfs;
data->cb = cb;
data->private_data = private_data;
data->filler.blob0.val = nfsfh;
data->filler.blob0.free = NULL;
data->rw_data.offset = offset;
data->rw_data.update_pos = update_pos;
memset(op, 0, sizeof(op));
i = nfs4_op_putfh(nfs, &op[0], nfsfh);
i += nfs4_op_read(nfs, &op[i], nfsfh, offset, count);
memset(&args, 0, sizeof(args));
args.argarray.argarray_len = i;
args.argarray.argarray_val = op;
if (rpc_nfs4_compound_async(nfs->rpc, nfs4_pread_cb, &args,
data) != 0) {
free_nfs4_cb_data(data);
return -1;
}
return 0;
}
static void
nfs4_symlink_cb(struct rpc_context *rpc, int status, void *command_data,
void *private_data)
{
struct nfs4_cb_data *data = private_data;
struct nfs_context *nfs = data->nfs;
COMPOUND4res *res = command_data;
assert(rpc->magic == RPC_CONTEXT_MAGIC);
if (check_nfs4_error(nfs, status, data, res, "SYMLINK")) {
return;
}
data->cb(0, nfs, NULL, data->private_data);
free_nfs4_cb_data(data);
}
/* Takes object name as filler.data
* blob0 as the target
*/
static int
nfs4_populate_symlink(struct nfs4_cb_data *data, nfs_argop4 *op)
{
struct nfs_context *nfs = data->nfs;
return nfs4_op_create(nfs, op, data->filler.data, NF4LNK,
NULL, NULL, data->filler.blob0.val, 0);
return 1;
}
int
nfs4_symlink_async(struct nfs_context *nfs, const char *target,
const char *linkname, nfs_cb cb, void *private_data)
{
struct nfs4_cb_data *data;
data = init_cb_data_split_path(nfs, linkname);
if (data == NULL) {
return -1;
}
data->cb = cb;
data->private_data = private_data;
data->filler.func = nfs4_populate_symlink;
data->filler.max_op = 1;
data->filler.blob0.val = strdup(target);
data->filler.blob0.free = free;
if (nfs4_lookup_path_async(nfs, data, nfs4_symlink_cb) < 0) {
free_nfs4_cb_data(data);
return -1;
}
return 0;
}
static void
nfs4_readlink_cb(struct rpc_context *rpc, int status, void *command_data,
void *private_data)
{
struct nfs4_cb_data *data = private_data;
struct nfs_context *nfs = data->nfs;
COMPOUND4res *res = command_data;
READLINK4resok *rlresok;
char* target;
int i;
assert(rpc->magic == RPC_CONTEXT_MAGIC);
if (check_nfs4_error(nfs, status, data, res, "READLINK")) {
return;
}
if ((i = nfs4_find_op(nfs, data, res, OP_READLINK, "READLINK")) < 0) {
return;
}
rlresok = &res->resarray.resarray_val[i].nfs_resop4_u.opreadlink.READLINK4res_u.resok4;
target = strdup(rlresok->link.utf8string_val);
if (target == NULL) {
data->cb(-ENOMEM, nfs, "Failed to allocate memory",
data->private_data);
free_nfs4_cb_data(data);
return;
}
data->filler.blob0.val = target;
data->filler.blob0.free = free;
data->cb(0, nfs, target, data->private_data);
free_nfs4_cb_data(data);
}
static int
nfs4_populate_readlink(struct nfs4_cb_data *data, nfs_argop4 *op)
{
struct nfs_context *nfs = data->nfs;
int i;
i = nfs4_op_readlink(nfs, &op[0]);
return i;
}
int
nfs4_readlink_async(struct nfs_context *nfs, const char *path, nfs_cb cb,
void *private_data)
{
struct nfs4_cb_data *data;
data = init_cb_data_full_path(nfs, path);
if (data == NULL) {
return -1;
}
data->cb = cb;
data->private_data = private_data;
data->filler.func = nfs4_populate_readlink;
data->filler.max_op = 1;
data->flags |= LOOKUP_FLAG_NO_FOLLOW;
if (nfs4_lookup_path_async(nfs, data, nfs4_readlink_cb) < 0) {
free_nfs4_cb_data(data);
return -1;
}
return 0;
}
static void
nfs4_pwrite_cb(struct rpc_context *rpc, int status, void *command_data,
void *private_data)
{
struct nfs4_cb_data *data = private_data;
struct nfs_context *nfs = data->nfs;
COMPOUND4res *res = command_data;
WRITE4resok *wres = NULL;
struct nfsfh *nfsfh;
int i;
assert(rpc->magic == RPC_CONTEXT_MAGIC);
nfsfh = data->filler.blob0.val;
if (check_nfs4_error(nfs, status, data, res, "WRITE")) {
return;
}
if ((i = nfs4_find_op(nfs, data, res, OP_WRITE, "WRITE")) < 0) {
return;
}
wres = &res->resarray.resarray_val[i].nfs_resop4_u.opwrite.WRITE4res_u.resok4;
if (data->rw_data.update_pos) {
nfsfh->offset = data->rw_data.offset + wres->count;
}
data->cb(wres->count, nfs, NULL, data->private_data);
free_nfs4_cb_data(data);
}
int
nfs4_pwrite_async_internal(struct nfs_context *nfs, struct nfsfh *nfsfh,
uint64_t offset, size_t count, const char *buf,
nfs_cb cb, void *private_data, int update_pos)
{
COMPOUND4args args;
nfs_argop4 op[2];
struct nfs4_cb_data *data;
int i;
data = malloc(sizeof(*data));
if (data == NULL) {
nfs_set_error(nfs, "Out of memory. Failed to allocate "
"cb data");
return -1;
}
memset(data, 0, sizeof(*data));
data->nfs = nfs;
data->cb = cb;
data->private_data = private_data;
data->filler.blob0.val = nfsfh;
data->filler.blob0.free = NULL;
data->rw_data.offset = offset;
data->rw_data.update_pos = update_pos;
memset(op, 0, sizeof(op));
i = nfs4_op_putfh(nfs, &op[0], nfsfh);
i += nfs4_op_write(nfs, &op[i], nfsfh, offset, count, buf);
memset(&args, 0, sizeof(args));
args.argarray.argarray_len = i;
args.argarray.argarray_val = op;
if (rpc_nfs4_compound_async2(nfs->rpc, nfs4_pwrite_cb, &args,
data, count) != 0) {
nfs_set_error(nfs, "PWRITE "
"failed: %s", rpc_get_error(nfs->rpc));
free_nfs4_cb_data(data);
return -EIO;
}
return 0;
}
static void
nfs4_write_append_cb(struct rpc_context *rpc, int status, void *command_data,
void *private_data)
{
struct nfs4_cb_data *data = private_data;
struct nfs_context *nfs = data->nfs;
COMPOUND4res *res = command_data;
GETATTR4resok *garesok = NULL;
struct nfsfh *nfsfh;
int i;
uint64_t offset;
char *buf;
uint32_t count;
struct nfs_stat_64 st;
assert(rpc->magic == RPC_CONTEXT_MAGIC);
nfsfh = data->filler.blob0.val;
buf = data->filler.blob1.val;
count = data->filler.blob1.len;
if (check_nfs4_error(nfs, status, data, res, "GETATTR")) {
return;
}
if ((i = nfs4_find_op(nfs, data, res, OP_GETATTR, "GETATTR")) < 0) {
return;
}
garesok = &res->resarray.resarray_val[i].nfs_resop4_u.opgetattr.GETATTR4res_u.resok4;
if (garesok->obj_attributes.attr_vals.attrlist4_len < 8) {
data->cb(-EINVAL, nfs, nfs_get_error(nfs), data->private_data);
free_nfs4_cb_data(data);
return;
}
memset(&st, 0, sizeof(st));
nfs_parse_attributes(nfs, data, &st,
garesok->obj_attributes.attr_vals.attrlist4_val,
garesok->obj_attributes.attr_vals.attrlist4_len);
offset = st.nfs_size;
if (nfs4_pwrite_async_internal(nfs, nfsfh, offset,
(size_t)count, buf,
data->cb, data->private_data, 1) < 0) {
free_nfs4_cb_data(data);
data->cb(-ENOMEM, nfs, nfs_get_error(nfs), data->private_data);
return;
}
free_nfs4_cb_data(data);
}
int
nfs4_write_async(struct nfs_context *nfs, struct nfsfh *nfsfh, uint64_t count,
const void *buf, nfs_cb cb, void *private_data)
{
if (nfsfh->is_append) {
COMPOUND4args args;
nfs_argop4 op[2];
struct nfs4_cb_data *data;
int i;
data = malloc(sizeof(*data));
if (data == NULL) {
nfs_set_error(nfs, "Out of memory. Failed to allocate "
"cb data");
return -1;
}
memset(data, 0, sizeof(*data));
data->nfs = nfs;
data->cb = cb;
data->private_data = private_data;
data->filler.blob0.val = nfsfh;
data->filler.blob0.free = NULL;
memset(op, 0, sizeof(op));
i = nfs4_op_putfh(nfs, &op[0], nfsfh);
i += nfs4_op_getattr(nfs, &op[i], standard_attributes, 2);
memset(&args, 0, sizeof(args));
args.argarray.argarray_len = i;
args.argarray.argarray_val = op;
data->filler.blob0.val = nfsfh;
data->filler.blob0.free = NULL;
data->filler.blob1.val = discard_const(buf);
data->filler.blob1.len = (int)count;
data->filler.blob1.free = NULL;
if (rpc_nfs4_compound_async2(nfs->rpc, nfs4_write_append_cb,
&args, data, count) != 0) {
nfs_set_error(nfs, "PWRITE "
"failed: %s", rpc_get_error(nfs->rpc));
free_nfs4_cb_data(data);
return -EIO;
}
return 0;
}
return nfs4_pwrite_async_internal(nfs, nfsfh, nfsfh->offset,
(size_t)count, buf,
cb, private_data, 1);
}
int
nfs4_create_async(struct nfs_context *nfs, const char *path, int flags,
int mode, nfs_cb cb, void *private_data)
{
return nfs4_open_async(nfs, path, O_CREAT | flags, mode,
cb, private_data);
}
int
nfs4_unlink_async(struct nfs_context *nfs, const char *path,
nfs_cb cb, void *private_data)
{
return nfs4_remove_async(nfs, path, cb, private_data);
}
static void
nfs4_link_2_cb(struct rpc_context *rpc, int status, void *command_data,
void *private_data)
{
struct nfs4_cb_data *data = private_data;
struct nfs_context *nfs = data->nfs;
COMPOUND4res *res = command_data;
assert(rpc->magic == RPC_CONTEXT_MAGIC);
if (check_nfs4_error(nfs, status, data, res, "LINK")) {
return;
}
data->cb(0, nfs, NULL, data->private_data);
free_nfs4_cb_data(data);
}
static int
nfs4_populate_link(struct nfs4_cb_data *data, nfs_argop4 *op)
{
struct nfs_context *nfs = data->nfs;
struct nfsfh *nfsfh = data->filler.blob0.val;
int i;
i = nfs4_op_savefh(nfs, &op[0]);
i += nfs4_op_putfh(nfs, &op[i], nfsfh);
i += nfs4_op_link(nfs, &op[i], data->filler.data);
return i;
}
static void
nfs4_link_1_cb(struct rpc_context *rpc, int status, void *command_data,
void *private_data)
{
struct nfs4_cb_data *data = private_data;
struct nfs_context *nfs = data->nfs;
COMPOUND4res *res = command_data;
GETFH4resok *gfhresok;
int i;
struct nfsfh *fh;
assert(rpc->magic == RPC_CONTEXT_MAGIC);
if (check_nfs4_error(nfs, status, data, res, "LINK")) {
return;
}
if ((i = nfs4_find_op(nfs, data, res, OP_GETFH, "GETFH")) < 0) {
return;
}
gfhresok = &res->resarray.resarray_val[i].nfs_resop4_u.opgetfh.GETFH4res_u.resok4;
/* oldpath fh */
fh = malloc(sizeof(*fh));
if (fh == NULL) {
nfs_set_error(nfs, "Out of memory. Failed to allocate "
"nfsfh");
data->cb(-ENOMEM, nfs, nfs_get_error(nfs), data->private_data);
free_nfs4_cb_data(data);
return;
}
memset(fh, 0 , sizeof(*fh));
data->filler.blob0.val = fh;
data->filler.blob0.free = (blob_free)nfs_free_nfsfh;
fh->fh.len = gfhresok->object.nfs_fh4_len;
fh->fh.val = malloc(fh->fh.len);
if (fh->fh.val == NULL) {
nfs_set_error(nfs, "Out of memory. Failed to allocate "
"nfsfh");
data->cb(-ENOMEM, nfs, nfs_get_error(nfs), data->private_data);
free_nfs4_cb_data(data);
return;
}
memcpy(fh->fh.val, gfhresok->object.nfs_fh4_val, fh->fh.len);
data->filler.func = nfs4_populate_link;
data->filler.max_op = 3;
free(data->path);
data->path = data->filler.blob1.val;
data->filler.blob1.val = NULL;
data->filler.blob1.free = NULL;
if (nfs4_lookup_path_async(nfs, data, nfs4_link_2_cb) < 0) {
data->cb(-EFAULT, nfs, nfs_get_error(nfs), data->private_data);
free_nfs4_cb_data(data);
return;
}
}
/*
* filler.data is the name of the new object
* blob0 is the filehandle for newpath parent directory.
* blob1 is oldpath.
*/
int
nfs4_link_async(struct nfs_context *nfs, const char *oldpath,
const char *newpath, nfs_cb cb, void *private_data)
{
struct nfs4_cb_data *data;
data = init_cb_data_split_path(nfs, newpath);
if (data == NULL) {
return -1;
}
data->cb = cb;
data->private_data = private_data;
data->filler.func = nfs4_populate_getfh;
data->filler.max_op = 1;
/* oldpath */
data->filler.blob1.val = strdup(oldpath);
if (data->filler.blob1.val == NULL) {
nfs_set_error(nfs, "Out of memory");
free_nfs4_cb_data(data);
return -1;
}
data->filler.blob1.free = free;
if (nfs4_lookup_path_async(nfs, data, nfs4_link_1_cb) < 0) {
free_nfs4_cb_data(data);
return -1;
}
return 0;
}
static void
nfs4_rename_2_cb(struct rpc_context *rpc, int status, void *command_data,
void *private_data)
{
struct nfs4_cb_data *data = private_data;
struct nfs_context *nfs = data->nfs;
COMPOUND4res *res = command_data;
assert(rpc->magic == RPC_CONTEXT_MAGIC);
if (check_nfs4_error(nfs, status, data, res, "RENAME")) {
return;
}
data->cb(0, nfs, NULL, data->private_data);
free_nfs4_cb_data(data);
}
static int
nfs4_populate_rename(struct nfs4_cb_data *data, nfs_argop4 *op)
{
struct nfs_context *nfs = data->nfs;
struct nfsfh *nfsfh = data->filler.blob0.val;
int i;
i = nfs4_op_savefh(nfs, &op[0]);
i += nfs4_op_putfh(nfs, &op[i], nfsfh);
i += nfs4_op_rename(nfs, &op[i], data->filler.data,
data->filler.blob1.val);
return i;
}
static void
nfs4_rename_1_cb(struct rpc_context *rpc, int status, void *command_data,
void *private_data)
{
struct nfs4_cb_data *data = private_data;
struct nfs_context *nfs = data->nfs;
COMPOUND4res *res = command_data;
GETFH4resok *gfhresok;
int i;
struct nfsfh *fh;
assert(rpc->magic == RPC_CONTEXT_MAGIC);
if (check_nfs4_error(nfs, status, data, res, "RENAME")) {
return;
}
if ((i = nfs4_find_op(nfs, data, res, OP_GETFH, "GETFH")) < 0) {
return;
}
gfhresok = &res->resarray.resarray_val[i].nfs_resop4_u.opgetfh.GETFH4res_u.resok4;
/* newpath fh */
fh = malloc(sizeof(*fh));
if (fh == NULL) {
nfs_set_error(nfs, "Out of memory. Failed to allocate "
"nfsfh");
data->cb(-ENOMEM, nfs, nfs_get_error(nfs), data->private_data);
free_nfs4_cb_data(data);
return;
}
memset(fh, 0 , sizeof(*fh));
data->filler.blob0.val = fh;
data->filler.blob0.free = (blob_free)nfs_free_nfsfh;
fh->fh.len = gfhresok->object.nfs_fh4_len;
fh->fh.val = malloc(fh->fh.len);
if (fh->fh.val == NULL) {
nfs_set_error(nfs, "Out of memory. Failed to allocate "
"nfsfh");
data->cb(-ENOMEM, nfs, nfs_get_error(nfs), data->private_data);
free_nfs4_cb_data(data);
return;
}
memcpy(fh->fh.val, gfhresok->object.nfs_fh4_val, fh->fh.len);
data->filler.blob1.val = data->filler.data;
data->filler.blob1.free = free;
data->filler.data = NULL;
/* Update path and data to point to the old path/name */
free(data->path);
data->path = nfs4_resolve_path(nfs, data->filler.blob2.val);
if (data->path == NULL) {
data->cb(-EINVAL, nfs, nfs_get_error(nfs), data->private_data);
free_nfs4_cb_data(data);
return;
}
data_split_path(data);
data->filler.func = nfs4_populate_rename;
data->filler.max_op = 3;
if (nfs4_lookup_path_async(nfs, data, nfs4_rename_2_cb) < 0) {
nfs_set_error(nfs, "Out of memory.");
data->cb(-ENOMEM, nfs, nfs_get_error(nfs), data->private_data);
free_nfs4_cb_data(data);
return;
}
}
/*
* blob0 is the filehandle for newpath parent directory.
* blob1 is the new name
* blob2 is oldpath.
*/
int
nfs4_rename_async(struct nfs_context *nfs, const char *oldpath,
const char *newpath, nfs_cb cb, void *private_data)
{
struct nfs4_cb_data *data;
data = init_cb_data_split_path(nfs, newpath);
if (data == NULL) {
return -1;
}
data->cb = cb;
data->private_data = private_data;
data->filler.func = nfs4_populate_getfh;
data->filler.max_op = 1;
/* oldpath */
data->filler.blob2.val = strdup(oldpath);
if (data->filler.blob2.val == NULL) {
nfs_set_error(nfs, "Out of memory");
free_nfs4_cb_data(data);
return -1;
}
data->filler.blob2.free = free;
if (nfs4_lookup_path_async(nfs, data, nfs4_rename_1_cb) < 0) {
free_nfs4_cb_data(data);
return -1;
}
return 0;
}
static void
nfs4_mknod_cb(struct rpc_context *rpc, int status, void *command_data,
void *private_data)
{
struct nfs4_cb_data *data = private_data;
struct nfs_context *nfs = data->nfs;
COMPOUND4res *res = command_data;
assert(rpc->magic == RPC_CONTEXT_MAGIC);
if (check_nfs4_error(nfs, status, data, res, "MKNOD")) {
return;
}
data->cb(0, nfs, NULL, data->private_data);
free_nfs4_cb_data(data);
}
static int
nfs4_populate_mknod(struct nfs4_cb_data *data, nfs_argop4 *op)
{
struct nfs_context *nfs = data->nfs;
uint32_t mode, *ptr;
int dev;
/* Strip off the file type before we marshall it */
ptr = (void *)data->filler.blob1.val;
mode = *ptr;
*ptr = htonl(mode & ~S_IFMT);
dev = data->filler.blob2.len;
switch (mode & S_IFMT) {
case S_IFBLK:
return nfs4_op_create(nfs, op, data->filler.data, NF4BLK,
&data->filler.blob0, &data->filler.blob1,
NULL, dev);
case S_IFCHR:
return nfs4_op_create(nfs, op, data->filler.data, NF4CHR,
&data->filler.blob0, &data->filler.blob1,
NULL, dev);
}
return 1;
}
/* Takes object name as filler.data
* blob0 as attribute mask
* blob1 as attribute value
* blob2.len as dev
*/
int
nfs4_mknod_async(struct nfs_context *nfs, const char *path, int mode, int dev,
nfs_cb cb, void *private_data)
{
struct nfs4_cb_data *data;
uint32_t *u32ptr;
switch (mode & S_IFMT) {
case S_IFCHR:
case S_IFBLK:
break;
default:
nfs_set_error(nfs, "Invalid file type for "
"MKNOD call");
return -1;
}
data = init_cb_data_split_path(nfs, path);
if (data == NULL) {
return -1;
}
data->cb = cb;
data->private_data = private_data;
data->filler.func = nfs4_populate_mknod;
data->filler.max_op = 1;
/* attribute mask */
u32ptr = malloc(2 * sizeof(uint32_t));
if (u32ptr == NULL) {
nfs_set_error(nfs, "Out of memory allocating bitmap");
return 0;
}
u32ptr[0] = 0;
u32ptr[1] = 1 << (FATTR4_MODE - 32);
data->filler.blob0.len = 2;
data->filler.blob0.val = u32ptr;
data->filler.blob0.free = free;
/* attribute values */
u32ptr = malloc(1 * sizeof(uint32_t));
if (u32ptr == NULL) {
nfs_set_error(nfs, "Out of memory allocating attributes");
free_nfs4_cb_data(data);
return -1;
}
u32ptr[0] = mode;
data->filler.blob1.len = 4;
data->filler.blob1.val = u32ptr;
data->filler.blob1.free = free;
data->filler.blob2.len = dev;
if (nfs4_lookup_path_async(nfs, data, nfs4_mknod_cb) < 0) {
free_nfs4_cb_data(data);
return -1;
}
return 0;
}
static void
nfs4_parse_readdir(struct nfs_context *nfs, struct nfs4_cb_data *data,
READDIR4resok *res);
static void
nfs4_opendir_2_cb(struct rpc_context *rpc, int status, void *command_data,
void *private_data)
{
struct nfs4_cb_data *data = private_data;
struct nfs_context *nfs = data->nfs;
COMPOUND4res *res = command_data;
READDIR4resok *rdresok;
int i;
assert(rpc->magic == RPC_CONTEXT_MAGIC);
if (check_nfs4_error(nfs, status, data, res, "READDIR")) {
return;
}
if ((i = nfs4_find_op(nfs, data, res, OP_READDIR, "READDIR")) < 0) {
return;
}
rdresok = &res->resarray.resarray_val[i].nfs_resop4_u.opreaddir.READDIR4res_u.resok4;
nfs4_parse_readdir(nfs, data, rdresok);
}
static void
nfs4_opendir_continue(struct nfs_context *nfs, struct nfs4_cb_data *data)
{
COMPOUND4args args;
nfs_argop4 op[2];
struct nfsfh *fh = data->filler.blob0.val;
uint64_t cookie;
int i;
memcpy(&cookie, data->filler.blob2.val, sizeof(uint64_t));
memset(op, 0, sizeof(op));
i = nfs4_op_putfh(nfs, &op[0], fh);
i += nfs4_op_readdir(nfs, &op[i], cookie);
memset(&args, 0, sizeof(args));
args.argarray.argarray_len = i;
args.argarray.argarray_val = op;
if (rpc_nfs4_compound_async(nfs->rpc, nfs4_opendir_2_cb, &args,
data) != 0) {
nfs_set_error(nfs, "Failed to queue READDIR command. %s",
nfs_get_error(nfs));
data->cb(-ENOMEM, nfs, nfs_get_error(nfs), data->private_data);
free_nfs4_cb_data(data);
return;
}
}
static void
nfs4_parse_readdir(struct nfs_context *nfs, struct nfs4_cb_data *data,
READDIR4resok *res)
{
struct nfsdir *nfsdir = data->filler.blob1.val;
struct entry4 *e;
e = res->reply.entries;
while (e) {
struct nfsdirent *nfsdirent;
struct nfs_stat_64 st;
memcpy(data->filler.blob2.val, &e->cookie, sizeof(uint64_t));
nfsdirent = malloc(sizeof(struct nfsdirent));
if (nfsdirent == NULL) {
nfs_set_error(nfs, "Out of memory.");
data->cb(-ENOMEM, nfs, nfs_get_error(nfs),
data->private_data);
free_nfs4_cb_data(data);
return;
}
nfsdirent->name = strdup(e->name.utf8string_val);
if (nfsdirent->name == NULL) {
nfs_set_error(nfs, "Out of memory.");
data->cb(-ENOMEM, nfs, nfs_get_error(nfs),
data->private_data);
free_nfs4_cb_data(data);
free(nfsdirent);
return;
}
memset(&st, 0, sizeof(st));
if (nfs_parse_attributes(nfs, data, &st,
e->attrs.attr_vals.attrlist4_val,
e->attrs.attr_vals.attrlist4_len) < 0) {
data->cb(-EINVAL, nfs, nfs_get_error(nfs),
data->private_data);
free_nfs4_cb_data(data);
free(nfsdirent->name);
free(nfsdirent);
return;
}
nfsdirent->inode = st.nfs_ino;
nfsdirent->mode = (uint32_t)st.nfs_mode;
switch (st.nfs_mode & S_IFMT) {
case S_IFREG:
nfsdirent->type = NF4REG;
break;
case S_IFDIR:
nfsdirent->type = NF4DIR;
break;
case S_IFBLK:
nfsdirent->type = NF4BLK;
break;
case S_IFCHR:
nfsdirent->type = NF4CHR;
break;
case S_IFLNK:
nfsdirent->type = NF4LNK;
break;
case S_IFSOCK:
nfsdirent->type = NF4SOCK;
break;
case S_IFIFO:
nfsdirent->type = NF4FIFO;
break;
}
nfsdirent->size = st.nfs_size;
nfsdirent->atime.tv_sec = (long)st.nfs_atime;
nfsdirent->atime.tv_usec = (long)(st.nfs_atime_nsec/1000);
nfsdirent->atime_nsec = (uint32_t)st.nfs_atime_nsec;
nfsdirent->mtime.tv_sec = (long)st.nfs_mtime;
nfsdirent->mtime.tv_usec = (long)(st.nfs_mtime_nsec/1000);
nfsdirent->mtime_nsec = (uint32_t)st.nfs_mtime_nsec;
nfsdirent->ctime.tv_sec = (long)st.nfs_ctime;
nfsdirent->ctime.tv_usec = (long)(st.nfs_ctime_nsec/1000);
nfsdirent->ctime_nsec = (uint32_t)st.nfs_ctime_nsec;
nfsdirent->uid = (uint32_t)st.nfs_uid;
nfsdirent->gid = (uint32_t)st.nfs_gid;
nfsdirent->nlink = (uint32_t)st.nfs_nlink;
nfsdirent->dev = st.nfs_dev;
nfsdirent->rdev = st.nfs_rdev;
nfsdirent->blksize = NFS_BLKSIZE;
nfsdirent->blocks = st.nfs_blocks;
nfsdirent->used = st.nfs_used;
nfsdirent->next = nfsdir->entries;
nfsdir->entries = nfsdirent;
e = e->nextentry;
}
if (res->reply.eof == 0) {
nfs4_opendir_continue(nfs, data);
return;
}
nfsdir->current = nfsdir->entries;
data->filler.blob1.val = NULL;
data->cb(0, nfs, nfsdir, data->private_data);
free_nfs4_cb_data(data);
}
static void
nfs4_opendir_cb(struct rpc_context *rpc, int status, void *command_data,
void *private_data)
{
struct nfs4_cb_data *data = private_data;
struct nfs_context *nfs = data->nfs;
COMPOUND4res *res = command_data;
struct nfsfh *fh;
GETFH4resok *gresok;
READDIR4resok *rdresok;
int i;
assert(rpc->magic == RPC_CONTEXT_MAGIC);
if (check_nfs4_error(nfs, status, data, res, "READDIR")) {
return;
}
/* Parse GetFH */
if ((i = nfs4_find_op(nfs, data, res, OP_GETFH, "GETFH")) < 0) {
return;
}
gresok = &res->resarray.resarray_val[i].nfs_resop4_u.opgetfh.GETFH4res_u.resok4;
fh = malloc(sizeof(*fh));
if (fh == NULL) {
nfs_set_error(nfs, "Out of memory. Failed to allocate "
"nfsfh");
data->cb(-ENOMEM, nfs, nfs_get_error(nfs), data->private_data);
free_nfs4_cb_data(data);
return;
}
memset(fh, 0 , sizeof(*fh));
data->filler.blob0.val = fh;
data->filler.blob0.free = (blob_free)nfs_free_nfsfh;
fh->fh.len = gresok->object.nfs_fh4_len;
fh->fh.val = malloc(fh->fh.len);
if (fh->fh.val == NULL) {
nfs_set_error(nfs, "Out of memory. Failed to allocate "
"nfsfh");
data->cb(-ENOMEM, nfs, nfs_get_error(nfs), data->private_data);
free_nfs4_cb_data(data);
return;
}
memcpy(fh->fh.val, gresok->object.nfs_fh4_val, fh->fh.len);
if ((i = nfs4_find_op(nfs, data, res, OP_READDIR, "READDIR")) < 0) {
return;
}
rdresok = &res->resarray.resarray_val[i].nfs_resop4_u.opreaddir.READDIR4res_u.resok4;
nfs4_parse_readdir(nfs, data, rdresok);
}
static int
nfs4_populate_readdir(struct nfs4_cb_data *data, nfs_argop4 *op)
{
struct nfs_context *nfs = data->nfs;
uint64_t cookie;
int i;
memcpy(&cookie, data->filler.blob2.val, sizeof(uint64_t));
i = nfs4_op_getfh(nfs, &op[0]);
i += nfs4_op_readdir(nfs, &op[i], cookie);
return i;
}
/* blob0 is the directory filehandle
* blob1 is nfsdir
* blob2 is the cookie
*/
int
nfs4_opendir_async(struct nfs_context *nfs, const char *path, nfs_cb cb,
void *private_data)
{
struct nfs4_cb_data *data;
struct nfsdir *nfsdir;
data = init_cb_data_full_path(nfs, path);
if (data == NULL) {
return -1;
}
data->cb = cb;
data->private_data = private_data;
data->filler.func = nfs4_populate_readdir;
data->filler.max_op = 2;
nfsdir = malloc(sizeof(struct nfsdir));
if (nfsdir == NULL) {
free_nfs4_cb_data(data);
nfs_set_error(nfs, "failed to allocate buffer for nfsdir");
return -1;
}
memset(nfsdir, 0, sizeof(struct nfsdir));
data->filler.blob1.val = nfsdir;
data->filler.blob1.free = (blob_free)nfs_free_nfsdir;
data->filler.blob2.val = malloc(sizeof(uint64_t));
if (data->filler.blob2.val == NULL) {
free_nfs4_cb_data(data);
nfs_set_error(nfs, "failed to allocate buffer for cookie");
return -1;
}
memset(data->filler.blob2.val, 0, sizeof(uint64_t));
data->filler.blob2.free = (blob_free)free;
if (nfs4_lookup_path_async(nfs, data, nfs4_opendir_cb) < 0) {
free_nfs4_cb_data(data);
return -1;
}
return 0;
}
static void
nfs4_truncate_close_cb(struct rpc_context *rpc, int status, void *command_data,
void *private_data)
{
struct nfs4_cb_data *data = private_data;
struct nfs_context *nfs = data->nfs;
COMPOUND4res *res = command_data;
struct nfsfh *fh = data->filler.blob0.val;
assert(rpc->magic == RPC_CONTEXT_MAGIC);
if (res) {
nfs_increment_seqid(fh, res->status);
}
if (check_nfs4_error(nfs, status, data, res, "CLOSE")) {
return;
}
data->cb(0, nfs, NULL, data->private_data);
free_nfs4_cb_data(data);
}
static void
nfs4_truncate_open_cb(struct rpc_context *rpc, int status, void *command_data,
void *private_data)
{
struct nfs4_cb_data *data = private_data;
struct nfs_context *nfs = data->nfs;
struct nfsfh *fh = data->filler.blob0.val;
COMPOUND4res *res = command_data;
COMPOUND4args args;
nfs_argop4 op[4];
int i;
if (check_nfs4_error(nfs, status, data, res, "OPEN")) {
return;
}
i = nfs4_op_putfh(nfs, &op[0], fh);
i += nfs4_op_truncate(nfs, &op[i], fh, data->filler.blob3.val);
i += nfs4_op_close(nfs, &op[i], fh);
memset(&args, 0, sizeof(args));
args.argarray.argarray_len = i;
args.argarray.argarray_val = op;
if (rpc_nfs4_compound_async(nfs->rpc, nfs4_truncate_close_cb, &args,
data) != 0) {
/* Not much we can do but leak one fd on the server :( */
data->cb(-ENOMEM, nfs, nfs_get_error(nfs), data->private_data);
free_nfs4_cb_data(data);
return;
}
}
/*
* data.blob3.val is a 12 byte SETATTR buffer for length+update_mtime
*/
int
nfs4_truncate_async(struct nfs_context *nfs, const char *path, uint64_t length,
nfs_cb cb, void *private_data)
{
struct nfs4_cb_data *data;
data = init_cb_data_split_path(nfs, path);
if (data == NULL) {
return -1;
}
data->cb = cb;
data->private_data = private_data;
data->open_cb = nfs4_truncate_open_cb;
data->filler.blob3.val = malloc(12);
if (data->filler.blob3.val == NULL) {
nfs_set_error(nfs, "Out of memory");
free_nfs4_cb_data(data);
return -1;
}
data->filler.blob3.free = free;
memset(data->filler.blob3.val, 0, 12);
length = nfs_hton64(length);
memcpy(data->filler.blob3.val, &length, sizeof(uint64_t));
if (nfs4_open_async_internal(nfs, data, O_WRONLY, 0) < 0) {
return -1;
}
return 0;
}
static void
nfs4_fsync_cb(struct rpc_context *rpc, int status, void *command_data,
void *private_data)
{
struct nfs4_cb_data *data = private_data;
struct nfs_context *nfs = data->nfs;
COMPOUND4res *res = command_data;
assert(rpc->magic == RPC_CONTEXT_MAGIC);
if (check_nfs4_error(nfs, status, data, res, "FSYNC")) {
return;
}
data->cb(0, nfs, NULL, data->private_data);
free_nfs4_cb_data(data);
}
int
nfs4_fsync_async(struct nfs_context *nfs, struct nfsfh *fh, nfs_cb cb,
void *private_data)
{
COMPOUND4args args;
nfs_argop4 op[2];
struct nfs4_cb_data *data;
int i;
data = malloc(sizeof(*data));
if (data == NULL) {
nfs_set_error(nfs, "Out of memory.");
return -1;
}
memset(data, 0, sizeof(*data));
data->nfs = nfs;
data->cb = cb;
data->private_data = private_data;
memset(op, 0, sizeof(op));
i = nfs4_op_putfh(nfs, &op[0], fh);
i += nfs4_op_commit(nfs, &op[i]);
memset(&args, 0, sizeof(args));
args.argarray.argarray_len = i;
args.argarray.argarray_val = op;
if (rpc_nfs4_compound_async(nfs->rpc, nfs4_fsync_cb, &args,
data) != 0) {
data->filler.blob0.val = NULL;
free_nfs4_cb_data(data);
return -1;
}
return 0;
}
int
nfs4_ftruncate_async(struct nfs_context *nfs, struct nfsfh *fh,
uint64_t length, nfs_cb cb, void *private_data)
{
COMPOUND4args args;
nfs_argop4 op[2];
struct nfs4_cb_data *data;
int i;
data = malloc(sizeof(*data));
if (data == NULL) {
nfs_set_error(nfs, "Out of memory.");
return -1;
}
memset(data, 0, sizeof(*data));
data->nfs = nfs;
data->cb = cb;
data->private_data = private_data;
data->filler.blob3.val = malloc(12);
if (data->filler.blob3.val == NULL) {
nfs_set_error(nfs, "Out of memory");
free_nfs4_cb_data(data);
return -1;
}
data->filler.blob3.free = free;
memset(data->filler.blob3.val, 0, 12);
length = nfs_hton64(length);
memcpy(data->filler.blob3.val, &length, sizeof(uint64_t));
memset(op, 0, sizeof(op));
i = nfs4_op_putfh(nfs, &op[0], fh);
i += nfs4_op_truncate(nfs, &op[i], fh, data->filler.blob3.val);
memset(&args, 0, sizeof(args));
args.argarray.argarray_len = i;
args.argarray.argarray_val = op;
if (rpc_nfs4_compound_async(nfs->rpc, nfs4_fsync_cb, &args,
data) != 0) {
data->filler.blob0.val = NULL;
free_nfs4_cb_data(data);
return -1;
}
return 0;
}
static void
nfs4_lseek_cb(struct rpc_context *rpc, int status, void *command_data,
void *private_data)
{
struct nfs4_cb_data *data = private_data;
struct nfs_context *nfs = data->nfs;
COMPOUND4res *res = command_data;
GETATTR4resok *garesok = NULL;
struct nfsfh *fh = data->filler.blob0.val;
struct nfs_stat_64 st;
int64_t offset;
int i;
assert(rpc->magic == RPC_CONTEXT_MAGIC);
memcpy(&offset, data->filler.blob1.val, sizeof(int64_t));
if (check_nfs4_error(nfs, status, data, res, "LSEEK")) {
return;
}
if ((i = nfs4_find_op(nfs, data, res, OP_GETATTR, "GETATTR")) < 0) {
return;
}
garesok = &res->resarray.resarray_val[i].nfs_resop4_u.opgetattr.GETATTR4res_u.resok4;
memset(&st, 0, sizeof(st));
nfs_parse_attributes(nfs, data, &st,
garesok->obj_attributes.attr_vals.attrlist4_val,
garesok->obj_attributes.attr_vals.attrlist4_len);
if (offset < 0 &&
-offset > (int64_t)st.nfs_size) {
nfs_set_error(nfs, "Negative offset for lseek("
"SEET_END)");
data->cb(-EINVAL, nfs, &fh->offset,
data->private_data);
} else {
fh->offset = offset + st.nfs_size;
data->cb(0, nfs, &fh->offset, data->private_data);
}
free_nfs4_cb_data(data);
}
/* blob0.val is nfsfh
* blob1.val is offset
*/
int
nfs4_lseek_async(struct nfs_context *nfs, struct nfsfh *fh, int64_t offset,
int whence, nfs_cb cb, void *private_data)
{
COMPOUND4args args;
nfs_argop4 op[2];
struct nfs4_cb_data *data;
int i;
if (whence == SEEK_SET) {
if (offset < 0) {
nfs_set_error(nfs, "Negative offset for lseek("
"SEET_SET)");
cb(-EINVAL, nfs, &fh->offset, private_data);
} else {
fh->offset = offset;
cb(0, nfs, &fh->offset, private_data);
}
return 0;
}
if (whence == SEEK_CUR) {
if (offset < 0 &&
fh->offset < (uint64_t)(-offset)) {
nfs_set_error(nfs, "Negative offset for lseek("
"SEET_CUR)");
cb(-EINVAL, nfs, &fh->offset, private_data);
} else {
fh->offset += offset;
cb(0, nfs, &fh->offset, private_data);
}
return 0;
}
data = malloc(sizeof(*data));
if (data == NULL) {
nfs_set_error(nfs, "Out of memory.");
return -1;
}
memset(data, 0, sizeof(*data));
data->nfs = nfs;
data->cb = cb;
data->private_data = private_data;
data->filler.blob0.val = fh;
data->filler.blob0.free = NULL;
data->filler.blob1.val = malloc(sizeof(uint64_t));
if (data->filler.blob1.val == NULL) {
nfs_set_error(nfs, "Out of memory.");
free_nfs4_cb_data(data);
return -1;
}
memcpy(data->filler.blob1.val, &offset, sizeof(uint64_t));
i = nfs4_op_putfh(nfs, &op[0], fh);
i += nfs4_op_getattr(nfs, &op[i], standard_attributes, 2);
memset(&args, 0, sizeof(args));
args.argarray.argarray_len = i;
args.argarray.argarray_val = op;
if (rpc_nfs4_compound_async(nfs->rpc, nfs4_lseek_cb, &args,
data) != 0) {
free_nfs4_cb_data(data);
return -1;
}
return 0;
}
static void
nfs4_lockf_cb(struct rpc_context *rpc, int status, void *command_data,
void *private_data)
{
struct nfs4_cb_data *data = private_data;
struct nfs_context *nfs = data->nfs;
COMPOUND4res *res = command_data;
LOCK4resok *lresok = NULL;
LOCKU4res *lures = NULL;
struct nfsfh *fh = data->filler.blob0.val;
enum nfs4_lock_op cmd;
int i;
assert(rpc->magic == RPC_CONTEXT_MAGIC);
cmd = data->filler.blob1.len;
if (check_nfs4_error(nfs, status, data, res, "LOCKF")) {
return;
}
switch (cmd) {
case NFS4_F_LOCK:
case NFS4_F_TLOCK:
if ((i = nfs4_find_op(nfs, data, res, OP_LOCK, "LOCK")) < 0) {
return;
}
lresok = &res->resarray.resarray_val[i].nfs_resop4_u.oplock.LOCK4res_u.resok4;
nfs->nfsi->has_lock_owner = 1;
fh->lock_stateid.seqid = lresok->lock_stateid.seqid;
memcpy(fh->lock_stateid.other, lresok->lock_stateid.other, 12);
break;
case NFS4_F_ULOCK:
if ((i = nfs4_find_op(nfs, data, res, OP_LOCKU, "LOCKU")) < 0) {
return;
}
lures = &res->resarray.resarray_val[i].nfs_resop4_u.oplocku;
fh->lock_stateid.seqid = lures->LOCKU4res_u.lock_stateid.seqid;
memcpy(fh->lock_stateid.other,
lures->LOCKU4res_u.lock_stateid.other, 12);
break;
case NFS4_F_TEST:
break;
}
data->cb(0, nfs, NULL, data->private_data);
free_nfs4_cb_data(data);
}
/* blob0.val is nfsfh
* blob1.len is cmd
*/
int
nfs4_lockf_async(struct nfs_context *nfs, struct nfsfh *fh,
enum nfs4_lock_op cmd, uint64_t count,
nfs_cb cb, void *private_data)
{
COMPOUND4args args;
nfs_argop4 op[2];
struct nfs4_cb_data *data;
int i;
data = malloc(sizeof(*data));
if (data == NULL) {
nfs_set_error(nfs, "Out of memory.");
return -1;
}
memset(data, 0, sizeof(*data));
data->nfs = nfs;
data->cb = cb;
data->private_data = private_data;
data->filler.blob0.val = fh;
data->filler.blob0.free = NULL;
data->filler.blob1.len = cmd;
i = nfs4_op_putfh(nfs, &op[0], fh);
switch (cmd) {
case NFS4_F_LOCK:
i += nfs4_op_lock(nfs, &op[i], fh, OP_LOCK, WRITEW_LT,
0, fh->offset, count);
break;
case NFS4_F_TLOCK:
i += nfs4_op_lock(nfs, &op[i], fh, OP_LOCK, WRITE_LT,
0, fh->offset, count);
break;
case NFS4_F_ULOCK:
i += nfs4_op_locku(nfs, &op[i], fh, WRITE_LT,
fh->offset, count);
break;
case NFS4_F_TEST:
i += nfs4_op_lockt(nfs, &op[i], fh, WRITEW_LT,
fh->offset, count);
break;
}
memset(&args, 0, sizeof(args));
args.argarray.argarray_len = i;
args.argarray.argarray_val = op;
if (rpc_nfs4_compound_async(nfs->rpc, nfs4_lockf_cb, &args,
data) != 0) {
free_nfs4_cb_data(data);
return -1;
}
return 0;
}
static void
nfs4_fcntl_cb(struct rpc_context *rpc, int status, void *command_data,
void *private_data)
{
struct nfs4_cb_data *data = private_data;
struct nfs_context *nfs = data->nfs;
COMPOUND4res *res = command_data;
LOCK4resok *lresok = NULL;
struct nfsfh *fh = data->filler.blob0.val;
enum nfs4_fcntl_op cmd;
struct nfs4_flock *fl;
int i;
assert(rpc->magic == RPC_CONTEXT_MAGIC);
cmd = data->filler.blob1.len;
if (check_nfs4_error(nfs, status, data, res, "FCNTL")) {
return;
}
switch (cmd) {
case NFS4_F_SETLK:
case NFS4_F_SETLKW:
fl = (struct nfs4_flock *)data->filler.blob1.val;
switch (fl->l_type) {
case F_RDLCK:
case F_WRLCK:
if ((i = nfs4_find_op(nfs, data, res, OP_LOCK,
"LOCK")) < 0) {
return;
}
lresok = &res->resarray.resarray_val[i].nfs_resop4_u.oplock.LOCK4res_u.resok4;
nfs->nfsi->has_lock_owner = 1;
fh->lock_stateid.seqid = lresok->lock_stateid.seqid;
memcpy(fh->lock_stateid.other,
lresok->lock_stateid.other, 12);
break;
case F_UNLCK:
if ((i = nfs4_find_op(nfs, data, res, OP_LOCKU,
"UNLOCK")) < 0) {
return;
}
break;
}
break;
}
data->cb(0, nfs, NULL, data->private_data);
free_nfs4_cb_data(data);
}
static int
nfs4_fcntl_async_internal(struct nfs_context *nfs, struct nfsfh *fh,
struct nfs4_cb_data *data)
{
COMPOUND4args args;
nfs_argop4 op[2];
struct nfs4_flock *fl;
enum nfs4_fcntl_op cmd;
int i, lock_type;
cmd = data->filler.blob1.len;
i = nfs4_op_putfh(nfs, &op[0], fh);
switch (cmd) {
case NFS4_F_SETLK:
case NFS4_F_SETLKW:
fl = data->filler.blob1.val;
switch (fl->l_type) {
case F_RDLCK:
lock_type = cmd == NFS4_F_SETLK ? READ_LT : READW_LT;
i += nfs4_op_lock(nfs, &op[i], fh, OP_LOCK, lock_type,
0, fl->l_start, fl->l_len);
break;
case F_WRLCK:
lock_type = cmd == NFS4_F_SETLK ? WRITE_LT : WRITEW_LT;
i += nfs4_op_lock(nfs, &op[i], fh, OP_LOCK, lock_type,
0, fl->l_start, fl->l_len);
break;
case F_UNLCK:
i += nfs4_op_locku(nfs, &op[i], fh, WRITE_LT,
fl->l_start, fl->l_len);
break;
}
break;
}
memset(&args, 0, sizeof(args));
args.argarray.argarray_len = i;
args.argarray.argarray_val = op;
if (rpc_nfs4_compound_async(nfs->rpc, nfs4_fcntl_cb, &args,
data) != 0) {
free_nfs4_cb_data(data);
return -1;
}
return 0;
}
static void
nfs4_fcntl_stat_cb(struct rpc_context *rpc, int status, void *command_data,
void *private_data)
{
struct nfs4_cb_data *data = private_data;
struct nfs_context *nfs = data->nfs;
struct nfsfh *fh = data->filler.blob0.val;
enum nfs4_fcntl_op cmd = data->filler.blob1.len;
COMPOUND4res *res = command_data;
GETATTR4resok *garesok;
struct nfs4_flock *fl;
struct nfs_stat_64 st;
int i;
if (check_nfs4_error(nfs, status, data, res, "STAT64")) {
return;
}
if ((i = nfs4_find_op(nfs, data, res, OP_GETATTR, "GETATTR")) < 0) {
return;
}
garesok = &res->resarray.resarray_val[i].nfs_resop4_u.opgetattr.GETATTR4res_u.resok4;
memset(&st, 0, sizeof(st));
if (nfs_parse_attributes(nfs, data, &st,
garesok->obj_attributes.attr_vals.attrlist4_val,
garesok->obj_attributes.attr_vals.attrlist4_len) < 0) {
data->cb(-EINVAL, nfs, nfs_get_error(nfs), data->private_data);
free_nfs4_cb_data(data);
}
switch (cmd) {
case NFS4_F_SETLK:
case NFS4_F_SETLKW:
fl = data->filler.blob1.val;
fl->l_whence = SEEK_SET;
fl->l_start = st.nfs_size + fl->l_start;
if (nfs4_fcntl_async_internal(nfs, fh, data)) {
data->cb(-ENOMEM, nfs, nfs_get_error(nfs),
data->private_data);
free_nfs4_cb_data(data);
}
}
}
/* blob0.val is nfsfh
* blob1.len is cmd
* blob1.val is arg
*/
int
nfs4_fcntl_async(struct nfs_context *nfs, struct nfsfh *fh,
enum nfs4_fcntl_op cmd, void *arg,
nfs_cb cb, void *private_data)
{
struct nfs4_cb_data *data;
struct nfs4_flock *fl;
COMPOUND4args args;
nfs_argop4 op[2];
int i;
data = malloc(sizeof(*data));
if (data == NULL) {
nfs_set_error(nfs, "Out of memory.");
return -1;
}
memset(data, 0, sizeof(*data));
data->nfs = nfs;
data->cb = cb;
data->private_data = private_data;
data->filler.blob0.val = fh;
data->filler.blob0.free = NULL;
data->filler.blob1.len = cmd;
data->filler.blob1.val = arg;
data->filler.blob1.free = NULL;
switch (cmd) {
case NFS4_F_SETLK:
case NFS4_F_SETLKW:
fl = arg;
switch (fl->l_whence) {
case SEEK_SET:
return nfs4_fcntl_async_internal(nfs, fh, data);
case SEEK_CUR:
fl->l_whence = SEEK_SET;
fl->l_start = fh->offset + fl->l_start;
return nfs4_fcntl_async_internal(nfs, fh, data);
case SEEK_END:
i = nfs4_op_putfh(nfs, &op[0], fh);
i += nfs4_op_getattr(nfs, &op[i], standard_attributes,
2);
memset(&args, 0, sizeof(args));
args.argarray.argarray_len = i;
args.argarray.argarray_val = op;
if (rpc_nfs4_compound_async(nfs->rpc,
nfs4_fcntl_stat_cb,
&args, data) != 0) {
free_nfs4_cb_data(data);
return -1;
}
return 0;
}
nfs_set_error(nfs, "fcntl: unknown fl->whence:%d\n",
fl->l_whence);
free_nfs4_cb_data(data);
return -1;
}
nfs_set_error(nfs, "fcntl: unknown cmd:%d\n", cmd);
free_nfs4_cb_data(data);
return -1;
}
static int
nfs_parse_statvfs(struct nfs_context *nfs, struct nfs4_cb_data *data,
struct statvfs *svfs, const char *buf, int len)
{
uint64_t u64;
uint32_t u32;
svfs->f_bsize = NFS_BLKSIZE;
svfs->f_frsize = NFS_BLKSIZE;
#if !defined(__ANDROID__)
svfs->f_flag = 0;
#endif
/* FSID
* NFSv4 FSID is 2*64 bit but statvfs fsid is just an
* unsigmed long. Mix the 2*64 bits and hope for the best.
*/
CHECK_GETATTR_BUF_SPACE(len, 16);
memcpy(&u64, buf, 8);
svfs->f_fsid = (unsigned long)nfs_ntoh64(u64);
buf += 8;
len -= 8;
memcpy(&u64, buf, 8);
svfs->f_fsid |= (unsigned long)nfs_ntoh64(u64);
buf += 8;
len -= 8;
/* Files Avail */
CHECK_GETATTR_BUF_SPACE(len, 8);
memcpy(&u64, buf, 8);
#if !defined(__ANDROID__)
svfs->f_favail = (fsfilcnt_t)nfs_ntoh64(u64);
#endif
buf += 8;
len -= 8;
/* Files Free */
CHECK_GETATTR_BUF_SPACE(len, 8);
memcpy(&u64, buf, 8);
svfs->f_ffree = (fsfilcnt_t)nfs_ntoh64(u64);
buf += 8;
len -= 8;
/* Files Total */
CHECK_GETATTR_BUF_SPACE(len, 8);
memcpy(&u64, buf, 8);
svfs->f_files = (fsfilcnt_t)nfs_ntoh64(u64);
buf += 8;
len -= 8;
/* Max Name */
CHECK_GETATTR_BUF_SPACE(len, 4);
memcpy(&u32, buf, 4);
#if !defined(__ANDROID__)
svfs->f_namemax = ntohl(u32);
#endif
buf += 4;
len -= 4;
/* Space Avail */
CHECK_GETATTR_BUF_SPACE(len, 8);
memcpy(&u64, buf, 8);
svfs->f_bavail = (fsblkcnt_t)(nfs_ntoh64(u64) / svfs->f_frsize);
buf += 8;
len -= 8;
/* Space Free */
CHECK_GETATTR_BUF_SPACE(len, 8);
memcpy(&u64, buf, 8);
svfs->f_bfree = (fsblkcnt_t)(nfs_ntoh64(u64) / svfs->f_frsize);
buf += 8;
len -= 8;
/* Space Total */
CHECK_GETATTR_BUF_SPACE(len, 8);
memcpy(&u64, buf, 8);
svfs->f_blocks = (fsblkcnt_t)(nfs_ntoh64(u64) / svfs->f_frsize);
buf += 8;
len -= 8;
return 0;
}
static int
nfs_parse_statvfs64(struct nfs_context *nfs, struct nfs4_cb_data *data,
struct nfs_statvfs_64 *svfs64, const char *buf, int len)
{
uint64_t u64;
uint32_t u32;
svfs64->f_bsize = NFS_BLKSIZE;
svfs64->f_frsize = NFS_BLKSIZE;
svfs64->f_flag = 0;
/* FSID
* NFSv4 FSID is 2*64 bit but statvfs fsid is just an
* unsigmed long. Mix the 2*64 bits and hope for the best.
*/
CHECK_GETATTR_BUF_SPACE(len, 16);
memcpy(&u64, buf, 8);
svfs64->f_fsid = nfs_ntoh64(u64);
buf += 8;
len -= 8;
memcpy(&u64, buf, 8);
svfs64->f_fsid |= nfs_ntoh64(u64);
buf += 8;
len -= 8;
/* Files Avail */
CHECK_GETATTR_BUF_SPACE(len, 8);
memcpy(&u64, buf, 8);
svfs64->f_favail = nfs_ntoh64(u64);
buf += 8;
len -= 8;
/* Files Free */
CHECK_GETATTR_BUF_SPACE(len, 8);
memcpy(&u64, buf, 8);
svfs64->f_ffree = nfs_ntoh64(u64);
buf += 8;
len -= 8;
/* Files Total */
CHECK_GETATTR_BUF_SPACE(len, 8);
memcpy(&u64, buf, 8);
svfs64->f_files = nfs_ntoh64(u64);
buf += 8;
len -= 8;
/* Max Name */
CHECK_GETATTR_BUF_SPACE(len, 4);
memcpy(&u32, buf, 4);
svfs64->f_namemax = ntohl(u32);
buf += 4;
len -= 4;
/* Space Avail */
CHECK_GETATTR_BUF_SPACE(len, 8);
memcpy(&u64, buf, 8);
svfs64->f_bavail = nfs_ntoh64(u64) / svfs64->f_frsize;
buf += 8;
len -= 8;
/* Space Free */
CHECK_GETATTR_BUF_SPACE(len, 8);
memcpy(&u64, buf, 8);
svfs64->f_bfree = nfs_ntoh64(u64) / svfs64->f_frsize;
buf += 8;
len -= 8;
/* Space Total */
CHECK_GETATTR_BUF_SPACE(len, 8);
memcpy(&u64, buf, 8);
svfs64->f_blocks = nfs_ntoh64(u64) / svfs64->f_frsize;
buf += 8;
len -= 8;
return 0;
}
static void
nfs4_statvfs_cb(struct rpc_context *rpc, int status, void *command_data,
void *private_data)
{
struct nfs4_cb_data *data = private_data;
struct nfs_context *nfs = data->nfs;
COMPOUND4res *res = command_data;
GETATTR4resok *garesok;
struct statvfs svfs;
struct nfs_statvfs_64 svfs64;
int i;
assert(rpc->magic == RPC_CONTEXT_MAGIC);
if (check_nfs4_error(nfs, status, data, res, "STATVFS")) {
return;
}
memset(&svfs, 0, sizeof(svfs));
memset(&svfs64, 0, sizeof(svfs64));
if ((i = nfs4_find_op(nfs, data, res, OP_GETATTR, "GETATTR")) < 0) {
return;
}
garesok = &res->resarray.resarray_val[i].nfs_resop4_u.opgetattr.GETATTR4res_u.resok4;
if (data->flags & LOOKUP_FLAG_IS_STATVFS64) {
/* statvfs64 */
if (nfs_parse_statvfs64(nfs, data, &svfs64,
garesok->obj_attributes.attr_vals.attrlist4_val,
garesok->obj_attributes.attr_vals.attrlist4_len) < 0) {
data->cb(-EINVAL, nfs, nfs_get_error(nfs), data->private_data);
free_nfs4_cb_data(data);
return;
}
data->cb(0, nfs, &svfs64, data->private_data);
} else {
/* statvfs */
if (nfs_parse_statvfs(nfs, data, &svfs,
garesok->obj_attributes.attr_vals.attrlist4_val,
garesok->obj_attributes.attr_vals.attrlist4_len) < 0) {
data->cb(-EINVAL, nfs, nfs_get_error(nfs), data->private_data);
free_nfs4_cb_data(data);
return;
}
data->cb(0, nfs, &svfs, data->private_data);
}
free_nfs4_cb_data(data);
}
static int
nfs4_statvfs_async_internal(struct nfs_context *nfs, const char *path,
int is_statvfs64,
nfs_cb cb, void *private_data)
{
struct nfs4_cb_data *data;
COMPOUND4args args;
struct nfsfh fh;
nfs_argop4 op[2];
int i;
data = malloc(sizeof(*data));
if (data == NULL) {
nfs_set_error(nfs, "Out of memory.");
return -1;
}
memset(data, 0, sizeof(*data));
data->nfs = nfs;
data->cb = cb;
data->private_data = private_data;
if (is_statvfs64) {
data->flags |= LOOKUP_FLAG_IS_STATVFS64;
}
fh.fh.len = nfs->nfsi->rootfh.len;
fh.fh.val = nfs->nfsi->rootfh.val;
i = nfs4_op_putfh(nfs, &op[0], &fh);
i += nfs4_op_getattr(nfs, &op[i], statvfs_attributes, 2);
memset(&args, 0, sizeof(args));
args.argarray.argarray_len = i;
args.argarray.argarray_val = op;
if (rpc_nfs4_compound_async(nfs->rpc, nfs4_statvfs_cb, &args,
data) != 0) {
free_nfs4_cb_data(data);
return -1;
}
return 0;
}
int
nfs4_statvfs_async(struct nfs_context *nfs, const char *path, nfs_cb cb,
void *private_data)
{
return nfs4_statvfs_async_internal(nfs, path, 0,
cb, private_data);
}
int
nfs4_statvfs64_async(struct nfs_context *nfs, const char *path, nfs_cb cb,
void *private_data)
{
return nfs4_statvfs_async_internal(nfs, path, 1,
cb, private_data);
}
static void
nfs4_chmod_cb(struct rpc_context *rpc, int status, void *command_data,
void *private_data)
{
struct nfs4_cb_data *data = private_data;
struct nfs_context *nfs = data->nfs;
COMPOUND4res *res = command_data;
if (check_nfs4_error(nfs, status, data, res, "CHMOD")) {
return;
}
data->cb(0, nfs, NULL, data->private_data);
free_nfs4_cb_data(data);
}
static int
nfs4_populate_chmod(struct nfs4_cb_data *data, nfs_argop4 *op)
{
return nfs4_op_chmod(data->nfs, op, NULL, data->filler.blob3.val);
}
int
nfs4_chmod_async_internal(struct nfs_context *nfs, const char *path,
int no_follow, int mode, nfs_cb cb,
void *private_data)
{
struct nfs4_cb_data *data;
uint32_t m;
data = init_cb_data_full_path(nfs, path);
if (data == NULL) {
return -1;
}
data->cb = cb;
data->private_data = private_data;
data->filler.func = nfs4_populate_chmod;
data->filler.max_op = 1;
if (no_follow) {
data->flags |= LOOKUP_FLAG_NO_FOLLOW;
}
data->filler.blob3.val = malloc(sizeof(uint32_t));
if (data->filler.blob3.val == NULL) {
nfs_set_error(nfs, "Out of memory");
free_nfs4_cb_data(data);
return -1;
}
data->filler.blob3.free = free;
m = htonl(mode);
memcpy(data->filler.blob3.val, &m, sizeof(uint32_t));
if (nfs4_lookup_path_async(nfs, data, nfs4_chmod_cb) < 0) {
return -1;
}
return 0;
}
int
nfs4_fchmod_async(struct nfs_context *nfs, struct nfsfh *fh, int mode,
nfs_cb cb, void *private_data)
{
COMPOUND4args args;
nfs_argop4 op[2];
struct nfs4_cb_data *data;
uint32_t m;
int i;
data = malloc(sizeof(*data));
if (data == NULL) {
nfs_set_error(nfs, "Out of memory.");
return -1;
}
memset(data, 0, sizeof(*data));
data->nfs = nfs;
data->cb = cb;
data->private_data = private_data;
data->filler.blob3.val = malloc(sizeof(uint32_t));
if (data->filler.blob3.val == NULL) {
nfs_set_error(nfs, "Out of memory");
free_nfs4_cb_data(data);
return -1;
}
data->filler.blob3.free = free;
m = htonl(mode);
memcpy(data->filler.blob3.val, &m, sizeof(uint32_t));
memset(op, 0, sizeof(op));
i = nfs4_op_putfh(nfs, &op[0], fh);
i += nfs4_op_chmod(nfs, &op[i], fh, data->filler.blob3.val);
memset(&args, 0, sizeof(args));
args.argarray.argarray_len = i;
args.argarray.argarray_val = op;
if (rpc_nfs4_compound_async(nfs->rpc, nfs4_fsync_cb, &args,
data) != 0) {
data->filler.blob0.val = NULL;
free_nfs4_cb_data(data);
return -1;
}
return 0;
}
#define CHOWN_BLOB_SIZE 64
static int
nfs4_create_chown_buffer(struct nfs_context *nfs, struct nfs4_cb_data *data,
int uid, int gid)
{
char *str;
int i, l;
uint32_t len;
data->filler.blob3.val = malloc(CHOWN_BLOB_SIZE);
if (data->filler.blob3.val == NULL) {
nfs_set_error(nfs, "Out of memory");
return -1;
}
data->filler.blob3.free = free;
memset(data->filler.blob3.val, 0, CHOWN_BLOB_SIZE);
i = 0;
str = data->filler.blob3.val;
/* UID */
l = snprintf(&str[i + 4], CHOWN_BLOB_SIZE - 4 - i,
"%d", uid);
if (l < 0) {
nfs_set_error(nfs, "snprintf failed");
return -1;
}
len = htonl(l);
/* UID length prefix */
memcpy(&str[i], &len, sizeof(uint32_t));
i += 4 + l;
i = (i + 3) & ~0x03;
/* GID */
l = snprintf(&str[i + 4], CHOWN_BLOB_SIZE - 4 - i,
"%d", gid);
if (l < 0) {
nfs_set_error(nfs, "snprintf failed");
return -1;
}
len = htonl(l);
/* GID length prefix */
memcpy(&str[i], &len, sizeof(uint32_t));
i += 4 + l;
i = (i + 3) & ~0x03;
data->filler.blob3.len = i;
return 0;
}
static void
nfs4_chown_cb(struct rpc_context *rpc, int status, void *command_data,
void *private_data)
{
struct nfs4_cb_data *data = private_data;
struct nfs_context *nfs = data->nfs;
COMPOUND4res *res = command_data;
if (check_nfs4_error(nfs, status, data, res, "OPEN")) {
return;
}
data->cb(0, nfs, NULL, data->private_data);
free_nfs4_cb_data(data);
}
static int
nfs4_populate_chown(struct nfs4_cb_data *data, nfs_argop4 *op)
{
return nfs4_op_chown(data->nfs, op, NULL, data->filler.blob3.val,
data->filler.blob3.len);
}
int
nfs4_chown_async_internal(struct nfs_context *nfs, const char *path,
int no_follow, int uid, int gid,
nfs_cb cb, void *private_data)
{
struct nfs4_cb_data *data;
data = init_cb_data_split_path(nfs, path);
if (data == NULL) {
return -1;
}
data->cb = cb;
data->private_data = private_data;
data->filler.func = nfs4_populate_chown;
data->filler.max_op = 1;
if (no_follow) {
data->flags |= LOOKUP_FLAG_NO_FOLLOW;
}
if (nfs4_create_chown_buffer(nfs, data, uid, gid) < 0) {
free_nfs4_cb_data(data);
return -1;
}
if (nfs4_lookup_path_async(nfs, data, nfs4_chown_cb) < 0) {
return -1;
}
return 0;
}
int
nfs4_fchown_async(struct nfs_context *nfs, struct nfsfh *fh, int uid, int gid,
nfs_cb cb, void *private_data)
{
COMPOUND4args args;
nfs_argop4 op[2];
struct nfs4_cb_data *data;
int i;
data = malloc(sizeof(*data));
if (data == NULL) {
nfs_set_error(nfs, "Out of memory.");
return -1;
}
memset(data, 0, sizeof(*data));
data->nfs = nfs;
data->cb = cb;
data->private_data = private_data;
if (nfs4_create_chown_buffer(nfs, data, uid, gid) < 0) {
free_nfs4_cb_data(data);
return -1;
}
memset(op, 0, sizeof(op));
i = nfs4_op_putfh(nfs, &op[0], fh);
i += nfs4_op_chown(nfs, &op[i], fh, data->filler.blob3.val,
data->filler.blob3.len);
memset(&args, 0, sizeof(args));
args.argarray.argarray_len = i;
args.argarray.argarray_val = op;
if (rpc_nfs4_compound_async(nfs->rpc, nfs4_fsync_cb, &args,
data) != 0) {
data->filler.blob0.val = NULL;
free_nfs4_cb_data(data);
return -1;
}
return 0;
}
static void
nfs4_access_cb(struct rpc_context *rpc, int status, void *command_data,
void *private_data)
{
struct nfs4_cb_data *data = private_data;
struct nfs_context *nfs = data->nfs;
COMPOUND4res *res = command_data;
ACCESS4resok *aresok;
int i;
assert(rpc->magic == RPC_CONTEXT_MAGIC);
if (check_nfs4_error(nfs, status, data, res, "ACCESS")) {
return;
}
if ((i = nfs4_find_op(nfs, data, res, OP_ACCESS, "ACCESS")) < 0) {
return;
}
aresok = &res->resarray.resarray_val[i].nfs_resop4_u.opaccess.ACCESS4res_u.resok4;
/* access2 */
if (data->filler.flags) {
int mode = 0;
if (aresok->access & ACCESS4_READ) {
mode |= R_OK;
}
if (aresok->access & ACCESS4_MODIFY) {
mode |= W_OK;
}
if (aresok->access & ACCESS4_EXECUTE) {
mode |= X_OK;
}
data->cb(mode, nfs, NULL, data->private_data);
free_nfs4_cb_data(data);
return;
}
if (aresok->supported != aresok->access) {
data->cb(-EACCES, nfs, NULL, data->private_data);
free_nfs4_cb_data(data);
return;
}
data->cb(0, nfs, NULL, data->private_data);
free_nfs4_cb_data(data);
}
static int
nfs4_access_internal(struct nfs_context *nfs, const char *path, int mode,
int is_access2, nfs_cb cb, void *private_data)
{
struct nfs4_cb_data *data;
uint32_t m;
data = init_cb_data_full_path(nfs, path);
if (data == NULL) {
return -1;
}
data->cb = cb;
data->private_data = private_data;
data->filler.func = nfs4_populate_access;
data->filler.max_op = 1;
data->filler.flags = is_access2;
data->filler.blob3.val = malloc(sizeof(uint32_t));
if (data->filler.blob3.val == NULL) {
nfs_set_error(nfs, "Out of memory");
return -1;
}
data->filler.blob3.free = free;
m = 0;
if (mode & R_OK) {
m |= ACCESS4_READ;
}
if (mode & W_OK) {
m |= ACCESS4_MODIFY;
}
if (mode & X_OK) {
m |= ACCESS4_EXECUTE;
}
memcpy(data->filler.blob3.val, &m, sizeof(uint32_t));
if (nfs4_lookup_path_async(nfs, data, nfs4_access_cb) < 0) {
free_nfs4_cb_data(data);
return -1;
}
return 0;
}
int
nfs4_access_async(struct nfs_context *nfs, const char *path, int mode,
nfs_cb cb, void *private_data)
{
return nfs4_access_internal(nfs, path, mode, 0,
cb, private_data);
}
int
nfs4_access2_async(struct nfs_context *nfs, const char *path, nfs_cb cb,
void *private_data)
{
return nfs4_access_internal(nfs, path, R_OK|W_OK|X_OK, 1,
cb, private_data);
}
static void
nfs4_utimes_cb(struct rpc_context *rpc, int status, void *command_data,
void *private_data)
{
struct nfs4_cb_data *data = private_data;
struct nfs_context *nfs = data->nfs;
COMPOUND4res *res = command_data;
assert(rpc->magic == RPC_CONTEXT_MAGIC);
if (check_nfs4_error(nfs, status, data, res, "UTIMES")) {
return;
}
data->cb(0, nfs, NULL, data->private_data);
free_nfs4_cb_data(data);
}
static int
nfs4_populate_utimes(struct nfs4_cb_data *data, nfs_argop4 *op)
{
return nfs4_op_utimes(data->nfs, op, NULL, data->filler.blob3.val,
data->filler.blob3.len);
}
int
nfs4_utimes_async_internal(struct nfs_context *nfs, const char *path,
int no_follow, struct timeval *times,
nfs_cb cb, void *private_data)
{
struct nfs4_cb_data *data;
char *buf;
uint32_t u32;
uint64_t u64;
data = init_cb_data_full_path(nfs, path);
if (data == NULL) {
return -1;
}
data->cb = cb;
data->private_data = private_data;
data->filler.func = nfs4_populate_utimes;
data->filler.max_op = 1;
if (no_follow) {
data->flags |= LOOKUP_FLAG_NO_FOLLOW;
}
data->filler.blob3.len = 2 * (4 + 8 + 4);
buf = data->filler.blob3.val = malloc(data->filler.blob3.len);
if (data->filler.blob3.val == NULL) {
nfs_set_error(nfs, "Out of memory");
return -1;
}
memset(buf, 0, data->filler.blob3.len);
data->filler.blob3.free = free;
if (times != NULL) {
/* atime */
u32 = htonl(SET_TO_CLIENT_TIME4);
memcpy(buf, &u32, sizeof(uint32_t));
u64 = nfs_hton64(times[0].tv_sec);
memcpy(buf + 4, &u64, sizeof(uint64_t));
u32 = htonl(times[0].tv_usec * 1000);
memcpy(buf + 12, &u32, sizeof(uint32_t));
buf += 16;
/* mtime */
u32 = htonl(SET_TO_CLIENT_TIME4);
memcpy(buf, &u32, sizeof(uint32_t));
u64 = nfs_hton64(times[1].tv_sec);
memcpy(buf + 4, &u64, sizeof(uint64_t));
u32 = htonl(times[1].tv_usec * 1000);
memcpy(buf + 12, &u32, sizeof(uint32_t));
} else {
/* atime */
u32 = htonl(SET_TO_SERVER_TIME4);
memcpy(buf, &u32, sizeof(uint32_t));
/* mtime */
u32 = htonl(SET_TO_SERVER_TIME4);
memcpy(buf + 4, &u32, sizeof(uint32_t));
data->filler.blob3.len = 8;
}
if (nfs4_lookup_path_async(nfs, data, nfs4_utimes_cb) < 0) {
free_nfs4_cb_data(data);
return -1;
}
return 0;
}
int
nfs4_utime_async(struct nfs_context *nfs, const char *path,
struct utimbuf *times, nfs_cb cb, void *private_data)
{
if (times == NULL) {
return nfs4_utimes_async_internal(nfs, path, 0, NULL,
cb, private_data);
}
struct timeval new_times[2];
new_times[0].tv_sec = times->actime;
new_times[0].tv_usec = 0;
new_times[1].tv_sec = times->modtime;
new_times[1].tv_usec = 0;
return nfs4_utimes_async_internal(nfs, path, 0, new_times,
cb, private_data);
}
Reference in New Issue View Git Blame Copy Permalink