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libnfs.c
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/*
nfs library for dbench
Copyright (C) 2008 by Ronnie Sahlberg ([email protected])
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#define _FILE_OFFSET_BITS 64
#include "mount.h"
#include "nfs.h"
#include "libnfs.h"
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <netdb.h>
#include <sys/socket.h>
#define discard_const(ptr) ((void *)((intptr_t)(ptr)))
typedef struct _data_t {
const char *dptr;
int dsize;
} data_t;
typedef struct _tree_t {
data_t key;
data_t fh;
off_t file_size;
struct _tree_t *parent;
struct _tree_t *left;
struct _tree_t *right;
} tree_t;
struct nfsio {
int s;
CLIENT *clnt;
unsigned long xid;
int xid_stride;
tree_t *fhandles;
};
static void set_new_xid(struct nfsio *nfsio)
{
unsigned long xid = nfsio->xid;
clnt_control(nfsio->clnt, CLSET_XID, (char *)&xid);
nfsio->xid += nfsio->xid_stride;
}
static void free_node(tree_t *t)
{
free(discard_const(t->key.dptr));
free(discard_const(t->fh.dptr));
free(t);
}
static tree_t *find_fhandle(tree_t *tree, const char *key)
{
int i;
if (tree == NULL) {
return NULL;
}
i = strcmp(key, tree->key.dptr);
if (i == 0) {
return tree;
}
if (i < 0) {
return find_fhandle(tree->left, key);
}
return find_fhandle(tree->right, key);
}
static data_t *recursive_lookup_fhandle(struct nfsio *nfsio, const char *name)
{
tree_t *t;
char *strp;
char *tmpname;
nfsstat3 ret;
while (name[0] == '.') name++;
if (name[0] == 0) {
return NULL;
}
tmpname = strdup(name);
strp = rindex(tmpname, '/');
if (strp == NULL) {
free(tmpname);
return NULL;
}
*strp = 0;
recursive_lookup_fhandle(nfsio, tmpname);
free(tmpname);
t = find_fhandle(nfsio->fhandles, name);
if (t != NULL) {
return &t->fh;
}
ret = nfsio_lookup(nfsio, name, NULL);
if (ret != 0) {
return NULL;
}
t = find_fhandle(nfsio->fhandles, name);
if (t != NULL) {
return &t->fh;
}
return ;
}
static data_t *lookup_fhandle(struct nfsio *nfsio, const char *name, off_t *off)
{
tree_t *t;
while (name[0] == '.') name++;
if (name[0] == 0) {
name = "/";
}
t = find_fhandle(nfsio->fhandles, name);
if (t == NULL) {
return recursive_lookup_fhandle(nfsio, name);
}
if (off) {
*off = t->file_size;
}
return &t->fh;
}
static void delete_fhandle(struct nfsio *nfsio, const char *name)
{
tree_t *t;
while (name[0] == '.') name++;
t = find_fhandle(nfsio->fhandles, name);
if (t == NULL) {
return;
}
/* we have a left child */
if (t->left) {
tree_t *tmp_tree;
for(tmp_tree=t->left;tmp_tree->right;tmp_tree=tmp_tree->right)
;
tmp_tree->right = t->right;
if (t->right) {
t->right->parent = tmp_tree;
}
if (t->parent == NULL) {
nfsio->fhandles = tmp_tree;
tmp_tree->parent = NULL;
free_node(t);
return;
}
if (t->parent->left == t) {
t->parent->left = t->left;
if (t->left) {
t->left->parent = t->parent;
}
free_node(t);
return;
}
t->parent->right = t->left;
if (t->left) {
t->left->parent = t->parent;
}
free_node(t);
return;
}
/* we only have a right child */
if (t->right) {
tree_t *tmp_tree;
for(tmp_tree=t->right;tmp_tree->left;tmp_tree=tmp_tree->left)
;
tmp_tree->left = t->left;
if (t->left) {
t->left->parent = tmp_tree;
}
if (t->parent == NULL) {
nfsio->fhandles = tmp_tree;
tmp_tree->parent = NULL;
free_node(t);
return;
}
if (t->parent->left == t) {
t->parent->left = t->right;
if (t->right) {
t->right->parent = t->parent;
}
free_node(t);
return;
}
t->parent->right = t->right;
if (t->right) {
t->right->parent = t->parent;
}
free_node(t);
return;
}
/* we are a leaf node */
if (t->parent == NULL) {
nfsio->fhandles = NULL;
} else {
if (t->parent->left == t) {
t->parent->left = NULL;
} else {
t->parent->right = NULL;
}
}
free_node(t);
return;
}
static void insert_fhandle(struct nfsio *nfsio, const char *name, const char *fhandle, int length, off_t off)
{
tree_t *tmp_t;
tree_t *t;
int i;
while (name[0] == '.') name++;
t = malloc(sizeof(tree_t));
if (t == NULL) {
fprintf(stderr, "MALLOC failed to allocate tree_t in insert_fhandle\n");
exit(10);
}
t->key.dptr = strdup(name);
if (t->key.dptr == NULL) {
fprintf(stderr, "STRDUP failed to allocate key in insert_fhandle\n");
exit(10);
}
t->key.dsize = strlen(name);
t->fh.dptr = malloc(length);
if (t->key.dptr == NULL) {
fprintf(stderr, "MALLOC failed to allocate fhandle in insert_fhandle\n");
exit(10);
}
memcpy(discard_const(t->fh.dptr), fhandle, length);
t->fh.dsize = length;
t->file_size = off;
t->left = NULL;
t->right = NULL;
t->parent = NULL;
if (nfsio->fhandles == NULL) {
nfsio->fhandles = t;
return;
}
tmp_t = nfsio->fhandles;
again:
i = strcmp(t->key.dptr, tmp_t->key.dptr);
if (i == 0) {
free(discard_const(tmp_t->fh.dptr));
tmp_t->fh.dsize = t->fh.dsize;
tmp_t->fh.dptr = t->fh.dptr;
free(discard_const(t->key.dptr));
free(t);
return;
}
if (i < 0) {
if (tmp_t->left == NULL) {
tmp_t->left = t;
t->parent = tmp_t;
return;
}
tmp_t = tmp_t->left;
goto again;
}
if (tmp_t->right == NULL) {
tmp_t->right = t;
t->parent = tmp_t;
return;
}
tmp_t = tmp_t->right;
goto again;
}
struct nfs_errors {
const char *err;
int idx;
};
static const struct nfs_errors nfs_errors[] = {
{"NFS3_OK", 0},
{"NFS3ERR_PERM", 1},
{"NFS3ERR_NOENT", 2},
{"NFS3ERR_IO", 5},
{"NFS3ERR_NXIO", 6},
{"NFS3ERR_ACCES", 13},
{"NFS3ERR_EXIST", 17},
{"NFS3ERR_XDEV", 18},
{"NFS3ERR_NODEV", 19},
{"NFS3ERR_NOTDIR", 20},
{"NFS3ERR_ISDIR", 21},
{"NFS3ERR_INVAL", 22},
{"NFS3ERR_FBIG", 27},
{"NFS3ERR_NOSPC", 28},
{"NFS3ERR_ROFS", 30},
{"NFS3ERR_MLINK", 31},
{"NFS3ERR_NAMETOOLONG", 63},
{"NFS3ERR_NOTEMPTY", 66},
{"NFS3ERR_DQUOT", 69},
{"NFS3ERR_STALE", 70},
{"NFS3ERR_REMOTE", 71},
{"NFS3ERR_BADHANDLE", 10001},
{"NFS3ERR_NOT_SYNC", 10002},
{"NFS3ERR_BAD_COOKIE", 10003},
{"NFS3ERR_NOTSUPP", 10004},
{"NFS3ERR_TOOSMALL", 10005},
{"NFS3ERR_SERVERFAULT", 10006},
{"NFS3ERR_BADTYPE", 10007},
{"NFS3ERR_JUKEBOX", 10008},
};
const char *nfs_error(int error)
{
unsigned int i;
for(i=0;i<sizeof(nfs_errors)/sizeof(struct nfs_errors);i++) {
if (error == nfs_errors[i].idx) {
return nfs_errors[i].err;
}
}
return "Unknown NFS error";
}
void nfsio_disconnect(struct nfsio *nfsio)
{
if (nfsio->clnt != NULL) {
clnt_destroy(nfsio->clnt);
nfsio->clnt = NULL;
}
if (nfsio->s != -1) {
close(nfsio->s);
}
// qqq free the tree*/
free(nfsio);
}
struct nfsio *nfsio_connect(const char *server, const char *export, const char *protocol, int initial_xid, int xid_stride)
{
dirpath mountdir=discard_const(export);
struct nfsio *nfsio;
mountres3 *mountres;
fhandle3 *fh;
struct sockaddr_in sin;
struct addrinfo *res;
struct addrinfo hints;
int ret;
nfsio = malloc(sizeof(struct nfsio));
if (nfsio == NULL) {
fprintf(stderr, "Failed to malloc nfsio\n");
return NULL;
}
bzero(nfsio, sizeof(struct nfsio));
nfsio->s = -1;
nfsio->xid = initial_xid;
nfsio->xid_stride = xid_stride;
/*
* set up the MOUNT client. If we are running as root, we get
* a port <1024 by default. If we are not root, we can not
* bind to these ports, so the server must be in "insecure"
* mode.
*/
memset (&hints, 0, sizeof (hints));
hints.ai_family = PF_UNSPEC;
hints.ai_socktype = SOCK_STREAM;
hints.ai_flags |= AI_CANONNAME;
ret = getaddrinfo (server, NULL, &hints, &res);
if (ret != 0) {
fprintf(stderr, "Failed to get address info ... getaddrinfo: %s\n",
gai_strerror(ret));
return NULL;
}
memset(&sin, 0, sizeof(sin));
sin.sin_port = 0;
sin.sin_family = PF_INET;
sin.sin_addr = ((struct sockaddr_in *) res->ai_addr)->sin_addr;
freeaddrinfo(res);
if (!strcmp(protocol, "tcp")) {
nfsio->s = RPC_ANYSOCK;
nfsio->clnt = clnttcp_create(&sin, MOUNT_PROGRAM, MOUNT_V3, &nfsio->s, 32768, 32768);
} else {
struct timeval wait;
wait.tv_sec = 5;
wait.tv_usec = 0;
nfsio->s = RPC_ANYSOCK;
nfsio->clnt = clntudp_create(&sin, MOUNT_PROGRAM, MOUNT_V3, wait, &nfsio->s);
}
if (nfsio->clnt == NULL) {
printf("ERROR: failed to connect to MOUNT daemon on %s\n", server);
nfsio_disconnect(nfsio);
return NULL;
}
nfsio->clnt->cl_auth = authunix_create_default();
mountres=mountproc3_mnt_3(&mountdir, nfsio->clnt);
if (mountres == NULL) {
printf("ERROR: failed to call the MNT procedure\n");
nfsio_disconnect(nfsio);
return NULL;
}
if (mountres->fhs_status != MNT3_OK) {
printf("ERROR: Server returned error %d when trying to MNT\n",mountres->fhs_status);
nfsio_disconnect(nfsio);
return NULL;
}
fh = &mountres->mountres3_u.mountinfo.fhandle;
insert_fhandle(nfsio, "/",
fh->fhandle3_val,
fh->fhandle3_len,
0);
/* we dont need the mount client any more */
clnt_destroy(nfsio->clnt);
nfsio->clnt = NULL;
close(nfsio->s);
nfsio->s = -1;
/*
* set up the NFS client. If we are running as root, we get
* a port <1024 by default. If we are not root, we can not
* bind to these ports, so the server must be in "insecure"
* mode.
*/
memset (&hints, 0, sizeof (hints));
hints.ai_family = PF_UNSPEC;
hints.ai_socktype = SOCK_STREAM;
hints.ai_flags |= AI_CANONNAME;
ret = getaddrinfo (server, NULL, &hints, &res);
if (ret != 0) {
fprintf(stderr, "Failed to get address info ... getaddrinfo: %s\n",
gai_strerror(ret));
return NULL;
}
memset(&sin, 0, sizeof(sin));
sin.sin_port = 0;
sin.sin_family = PF_INET;
sin.sin_addr = ((struct sockaddr_in *) res->ai_addr)->sin_addr;
freeaddrinfo(res);
if (!strcmp(protocol, "tcp")) {
nfsio->s = RPC_ANYSOCK;
nfsio->clnt = clnttcp_create(&sin, NFS_PROGRAM, NFS_V3, &nfsio->s, 327680, 327680);
} else {
struct timeval wait;
wait.tv_sec = 5;
wait.tv_usec = 0;
nfsio->s = RPC_ANYSOCK;
nfsio->clnt = clntudp_create(&sin, NFS_PROGRAM, NFS_V3, wait, &nfsio->s);
}
if (nfsio->clnt == NULL) {
fprintf(stderr, "Failed to initialize nfs client structure\n");
nfsio_disconnect(nfsio);
return NULL;
}
nfsio->clnt->cl_auth = authunix_create_default();
return nfsio;
}
nfsstat3 nfsio_getattr(struct nfsio *nfsio, const char *name, fattr3 *attributes)
{
struct GETATTR3args GETATTR3args;
struct GETATTR3res *GETATTR3res;
data_t *fh;
fh = lookup_fhandle(nfsio, name, NULL);
if (fh == NULL) {
fprintf(stderr, "failed to fetch handle in nfsio_getattr\n");
return NFS3ERR_SERVERFAULT;
}
GETATTR3args.object.data.data_len = fh->dsize;
GETATTR3args.object.data.data_val = discard_const(fh->dptr);
set_new_xid(nfsio);
GETATTR3res = nfsproc3_getattr_3(&GETATTR3args, nfsio->clnt);
if (GETATTR3res == NULL) {
fprintf(stderr, "nfsproc3_getattr_3 failed in getattr\n");
return NFS3ERR_SERVERFAULT;
}
if (GETATTR3res->status != NFS3_OK) {
fprintf(stderr, "nfsproc3_getattr_3 failed in getattr. status:%d\n", GETATTR3res->status);
return GETATTR3res->status;
}
if (attributes) {
memcpy(attributes, &GETATTR3res->GETATTR3res_u.resok.obj_attributes, sizeof(fattr3));
}
return NFS3_OK;
}
nfsstat3 nfsio_lookup(struct nfsio *nfsio, const char *name, fattr3 *attributes)
{
struct LOOKUP3args LOOKUP3args;
struct LOOKUP3res *LOOKUP3res;
char *tmp_name = NULL;
int ret = NFS3_OK;
data_t *fh;
char *ptr;
tmp_name = strdup(name);
if (tmp_name == NULL) {
fprintf(stderr, "failed to strdup name in nfsio_lookup\n");
ret = NFS3ERR_SERVERFAULT;
goto finished;
}
ptr = rindex(tmp_name, '/');
if (ptr == NULL) {
fprintf(stderr, "name did not contain '/' in nfsio_lookup\n");
ret = NFS3ERR_SERVERFAULT;
goto finished;
}
*ptr = 0;
ptr++;
fh = lookup_fhandle(nfsio, tmp_name, NULL);
if (fh == NULL) {
fprintf(stderr, "failed to fetch parent handle for '%s' in nfsio_lookup\n", tmp_name);
ret = NFS3ERR_SERVERFAULT;
goto finished;
}
LOOKUP3args.what.dir.data.data_len = fh->dsize;
LOOKUP3args.what.dir.data.data_val = discard_const(fh->dptr);
LOOKUP3args.what.name = ptr;
set_new_xid(nfsio);
LOOKUP3res = nfsproc3_lookup_3(&LOOKUP3args, nfsio->clnt);
if (LOOKUP3res == NULL) {
fprintf(stderr, "nfsproc3_lookup_3 failed in lookup\n");
ret = NFS3ERR_SERVERFAULT;
goto finished;
}
if (LOOKUP3res->status != NFS3_OK) {
ret = LOOKUP3res->status;
goto finished;
}
insert_fhandle(nfsio, name,
LOOKUP3res->LOOKUP3res_u.resok.object.data.data_val,
LOOKUP3res->LOOKUP3res_u.resok.object.data.data_len,
LOOKUP3res->LOOKUP3res_u.resok.obj_attributes.post_op_attr_u.attributes.size);
free(LOOKUP3res->LOOKUP3res_u.resok.object.data.data_val);
if (attributes) {
memcpy(attributes, &LOOKUP3res->LOOKUP3res_u.resok.obj_attributes.post_op_attr_u.attributes, sizeof(fattr3));
}
finished:
if (tmp_name) {
free(tmp_name);
}
return ret;
}
nfsstat3 nfsio_access(struct nfsio *nfsio, const char *name, uint32 desired, uint32 *access)
{
struct ACCESS3args ACCESS3args;
struct ACCESS3res *ACCESS3res;
data_t *fh;
fh = lookup_fhandle(nfsio, name, NULL);
if (fh == NULL) {
fprintf(stderr, "failed to fetch handle in nfsio_access\n");
return NFS3ERR_SERVERFAULT;
}
ACCESS3args.object.data.data_val = discard_const(fh->dptr);
ACCESS3args.object.data.data_len = fh->dsize;
ACCESS3args.access = desired;
set_new_xid(nfsio);
ACCESS3res = nfsproc3_access_3(&ACCESS3args, nfsio->clnt);
if (ACCESS3res == NULL) {
fprintf(stderr, "nfsproc3_access_3 failed in access\n");
return NFS3ERR_SERVERFAULT;
}
if (ACCESS3res->status != NFS3_OK) {
fprintf(stderr, "nfsproc3_access_3 failed. status:%d\n",
ACCESS3res->status);
return ACCESS3res->status;
}
if (access) {
*access = ACCESS3res->ACCESS3res_u.resok.access;
}
return NFS3_OK;
}
nfsstat3 nfsio_create(struct nfsio *nfsio, const char *name)
{
struct CREATE3args CREATE3args;
struct CREATE3res *CREATE3res;
char *tmp_name = NULL;
data_t *fh;
char *ptr;
int ret = NFS3_OK;
tmp_name = strdup(name);
if (tmp_name == NULL) {
fprintf(stderr, "failed to strdup name in nfsio_create\n");
ret = NFS3ERR_SERVERFAULT;
goto finished;
}
ptr = rindex(tmp_name, '/');
if (ptr == NULL) {
fprintf(stderr, "name did not contain '/' in nfsio_create\n");
ret = NFS3ERR_SERVERFAULT;
goto finished;
}
*ptr = 0;
ptr++;
fh = lookup_fhandle(nfsio, tmp_name, NULL);
if (fh == NULL) {
fprintf(stderr, "failed to fetch parent handle in nfsio_create\n");
ret = NFS3ERR_SERVERFAULT;
goto finished;
}
CREATE3args.where.dir.data.data_len = fh->dsize;
CREATE3args.where.dir.data.data_val = discard_const(fh->dptr);
CREATE3args.where.name = ptr;
CREATE3args.how.mode = UNCHECKED;
CREATE3args.how.createhow3_u.obj_attributes.mode.set_it = TRUE;
CREATE3args.how.createhow3_u.obj_attributes.mode.set_mode3_u.mode = 0777;
CREATE3args.how.createhow3_u.obj_attributes.uid.set_it = TRUE;
CREATE3args.how.createhow3_u.obj_attributes.uid.set_uid3_u.uid = 0;
CREATE3args.how.createhow3_u.obj_attributes.gid.set_it = TRUE;
CREATE3args.how.createhow3_u.obj_attributes.gid.set_gid3_u.gid = 0;
CREATE3args.how.createhow3_u.obj_attributes.size.set_it = FALSE;
CREATE3args.how.createhow3_u.obj_attributes.atime.set_it = FALSE;
CREATE3args.how.createhow3_u.obj_attributes.mtime.set_it = FALSE;
set_new_xid(nfsio);
CREATE3res = nfsproc3_create_3(&CREATE3args, nfsio->clnt);
if (CREATE3res == NULL) {
fprintf(stderr, "nfsproc3_create_3 failed in nfsio_create\n");
ret = NFS3ERR_SERVERFAULT;
goto finished;
}
if (CREATE3res->status != NFS3_OK) {
fprintf(stderr, "nfsproc3_create_3 failed in nfsio_create. status:%d\n", CREATE3res->status);
ret = CREATE3res->status;
goto finished;
}
insert_fhandle(nfsio, name,
CREATE3res->CREATE3res_u.resok.obj.post_op_fh3_u.handle.data.data_val,
CREATE3res->CREATE3res_u.resok.obj.post_op_fh3_u.handle.data.data_len,
0 /*qqq*/
);
finished:
if (tmp_name) {
free(tmp_name);
}
return ret;
}
nfsstat3 nfsio_remove(struct nfsio *nfsio, const char *name)
{
struct REMOVE3args REMOVE3args;
struct REMOVE3res *REMOVE3res;
int ret = NFS3_OK;
char *tmp_name = NULL;
data_t *fh;
char *ptr;
tmp_name = strdup(name);
if (tmp_name == NULL) {
fprintf(stderr, "failed to strdup name in nfsio_remove\n");
ret = NFS3ERR_SERVERFAULT;
goto finished;
}
ptr = rindex(tmp_name, '/');
if (ptr == NULL) {
fprintf(stderr, "name did not contain '/' in nfsio_remove\n");
ret = NFS3ERR_SERVERFAULT;
goto finished;
}
*ptr = 0;
ptr++;
fh = lookup_fhandle(nfsio, tmp_name, NULL);
if (fh == NULL) {
fprintf(stderr, "failed to fetch parent handle in nfsio_remove\n");
ret = NFS3ERR_SERVERFAULT;
goto finished;
}
REMOVE3args.object.dir.data.data_len = fh->dsize;
REMOVE3args.object.dir.data.data_val = discard_const(fh->dptr);
REMOVE3args.object.name = ptr;
set_new_xid(nfsio);
REMOVE3res = nfsproc3_remove_3(&REMOVE3args, nfsio->clnt);
if (REMOVE3res == NULL) {
fprintf(stderr, "nfsproc3_remove_3 failed in nfsio_remove\n");
ret = NFS3ERR_SERVERFAULT;
goto finished;
}
if (REMOVE3res->status != NFS3_OK) {
fprintf(stderr, "nfsproc3_remove_3 failed in nfsio_remove. status:%d\n", REMOVE3res->status);
ret = REMOVE3res->status;
goto finished;
}
delete_fhandle(nfsio, name);
finished:
if (tmp_name) {
free(tmp_name);
}
return ret;
}
nfsstat3 nfsio_write(struct nfsio *nfsio, const char *name, char *buf, uint64_t offset, int len, int stable)
{
struct WRITE3args WRITE3args;
struct WRITE3res *WRITE3res;
int ret = NFS3_OK;
data_t *fh;
fh = lookup_fhandle(nfsio, name, NULL);
if (fh == NULL) {
fprintf(stderr, "failed to fetch handle in nfsio_write\n");
ret = NFS3ERR_SERVERFAULT;
goto finished;
}
WRITE3args.file.data.data_len = fh->dsize;
WRITE3args.file.data.data_val = discard_const(fh->dptr);
WRITE3args.offset = offset;
WRITE3args.count = len;
WRITE3args.stable = stable;
WRITE3args.data.data_len = len;
WRITE3args.data.data_val = buf;
set_new_xid(nfsio);
WRITE3res = nfsproc3_write_3(&WRITE3args, nfsio->clnt);
if (WRITE3res == NULL) {
fprintf(stderr, "nfsproc3_write_3 failed in nfsio_write\n");
ret = NFS3ERR_SERVERFAULT;
goto finished;
}
if (WRITE3res->status != NFS3_OK) {
fprintf(stderr, "nfsproc3_write_3 failed in getattr. status:%d\n", WRITE3res->status);
ret = WRITE3res->status;
}
finished:
return ret;
}
nfsstat3 nfsio_read(struct nfsio *nfsio, const char *name, char *buf, uint64_t offset, int len, int *count, int *eof)
{
struct READ3args READ3args;
struct READ3res *READ3res;
int ret = NFS3_OK;
data_t *fh;
off_t size;
fh = lookup_fhandle(nfsio, name, &size);
if (fh == NULL) {
fprintf(stderr, "failed to fetch handle in nfsio_read\n");
ret = NFS3ERR_SERVERFAULT;
goto finished;
}
if (offset >= size && size > 0) {
offset = offset % size;
}
if (offset+len >= size) {
offset = 0;
}
READ3args.file.data.data_len = fh->dsize;
READ3args.file.data.data_val = discard_const(fh->dptr);
READ3args.offset = offset;
READ3args.count = len;
set_new_xid(nfsio);
READ3res = nfsproc3_read_3(&READ3args, nfsio->clnt);
if (READ3res == NULL) {
fprintf(stderr, "nfsproc3_read_3 failed in nfsio_read\n");
ret = NFS3ERR_SERVERFAULT;
goto finished;
}
if (READ3res->status != NFS3_OK) {
fprintf(stderr, "nfsproc3_read_3 failed in nfsio_read. status:%d\n", READ3res->status);
ret = READ3res->status;
goto finished;
}
if (count) {
*count = READ3res->READ3res_u.resok.count;
}
if (eof) {
*eof = READ3res->READ3res_u.resok.eof;
}
if (buf) {
memcpy(buf, READ3res->READ3res_u.resok.data.data_val,
READ3res->READ3res_u.resok.count);
}
free(READ3res->READ3res_u.resok.data.data_val);
READ3res->READ3res_u.resok.data.data_val = NULL;
finished:
return ret;
}
nfsstat3 nfsio_commit(struct nfsio *nfsio, const char *name)
{
struct COMMIT3args COMMIT3args;
struct COMMIT3res *COMMIT3res;
int ret = NFS3_OK;
data_t *fh;
fh = lookup_fhandle(nfsio, name, NULL);
if (fh == NULL) {
fprintf(stderr, "failed to fetch handle in nfsio_commit\n");
ret = NFS3ERR_SERVERFAULT;
goto finished;
}
COMMIT3args.file.data.data_len = fh->dsize;
COMMIT3args.file.data.data_val = discard_const(fh->dptr);
COMMIT3args.offset = 0;
COMMIT3args.count = 0;
set_new_xid(nfsio);
COMMIT3res = nfsproc3_commit_3(&COMMIT3args, nfsio->clnt);
if (COMMIT3res == NULL) {
fprintf(stderr, "nfsproc3_commit_3 failed in nfsio_commit\n");
ret = NFS3ERR_SERVERFAULT;
goto finished;
}
if (COMMIT3res->status != NFS3_OK) {
fprintf(stderr, "nfsproc3_commit_3 failed in nfsio_commit. status:%d\n", COMMIT3res->status);
ret = COMMIT3res->status;
goto finished;
}
finished:
return ret;
}
nfsstat3 nfsio_fsinfo(struct nfsio *nfsio)
{
struct FSINFO3args FSINFO3args;
struct FSINFO3res *FSINFO3res;
data_t *fh;
fh = lookup_fhandle(nfsio, "/", NULL);
if (fh == NULL) {
fprintf(stderr, "failed to fetch handle in nfsio_fsinfo\n");
return NFS3ERR_SERVERFAULT;
}
FSINFO3args.fsroot.data.data_len = fh->dsize;
FSINFO3args.fsroot.data.data_val = discard_const(fh->dptr);
set_new_xid(nfsio);
FSINFO3res = nfsproc3_fsinfo_3(&FSINFO3args, nfsio->clnt);
if (FSINFO3res == NULL) {
fprintf(stderr, "nfsproc3_fsinfo_3 failed in nfsio_fsinfo\n");
return NFS3ERR_SERVERFAULT;
}
if (FSINFO3res->status != NFS3_OK) {
fprintf(stderr, "nfsproc3_fsinfo_3 failed in nfsio_fsinfo. status:%d\n", FSINFO3res->status);
return FSINFO3res->status;
}
return NFS3_OK;
}
nfsstat3 nfsio_fsstat(struct nfsio *nfsio)
{
struct FSSTAT3args FSSTAT3args;
struct FSSTAT3res *FSSTAT3res;
data_t *fh;
fh = lookup_fhandle(nfsio, "/", NULL);
if (fh == NULL) {
fprintf(stderr, "failed to fetch handle in nfsio_fsstat\n");
return NFS3ERR_SERVERFAULT;
}