X-Git-Url: https://git.piment-noir.org/?a=blobdiff_plain;f=lib%2Flibnfs.c;h=6e7cd214a3fefa3d47244048c1fc0db2c19cc674;hb=e59193c9f9ee42265eabd92a8b20e81c6eac2776;hp=c1b4962caffa1efb3e7fdf8b68d3502f7c87b493;hpb=fb69c64c020b7469771b183d2add600cd2108583;p=deb_libnfs.git

diff --git a/lib/libnfs.c b/lib/libnfs.c
index c1b4962..6e7cd21 100644
--- a/lib/libnfs.c
+++ b/lib/libnfs.c
@@ -17,26 +17,58 @@
 /*
  * High level api to nfs filesystems
  */
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#ifdef AROS
+#include "aros_compat.h"
+#endif
+
 #ifdef WIN32
 #include "win32_compat.h"
-#define DllExport
-#else
-#include <strings.h>
-#include <sys/statvfs.h>
+#endif
+
+#ifdef HAVE_UTIME_H
 #include <utime.h>
-#include <unistd.h>
-#endif/*WIN32*/
+#endif
+
+#ifdef ANDROID
+#define statvfs statfs
+#endif
 
 #define _GNU_SOURCE
 
+#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
+
+#ifdef HAVE_NETINET_IN_H
+#include <netinet/in.h>
+#endif
+
+#ifdef HAVE_STRINGS_H
+#include <strings.h>
+#endif
+
 #include <stdio.h>
 #include <stdarg.h>
 #include <stdlib.h>
 #include <string.h>
+#include <assert.h>
 #include <errno.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
+#include "libnfs-zdr.h"
 #include "libnfs.h"
 #include "libnfs-raw.h"
 #include "libnfs-raw-mount.h"
@@ -51,7 +83,7 @@ struct nfsdir {
 struct nfsfh {
        struct nfs_fh3 fh;
        int is_sync;
-       off_t offset;
+       uint64_t offset;
 };
 
 struct nfs_context {
@@ -59,8 +91,9 @@ struct nfs_context {
        char *server;
        char *export;
        struct nfs_fh3 rootfh;
-       size_t readmax;
-       size_t writemax;
+       uint64_t readmax;
+       uint64_t writemax;
+       char *cwd;
 };
 
 void nfs_free_nfsdir(struct nfsdir *nfsdir)
@@ -98,19 +131,18 @@ struct nfs_cb_data {
        int error;
        int cancel;
        int num_calls;
-       off_t start_offset, max_offset;
+       uint64_t start_offset, max_offset;
        char *buffer;
 };
 
 struct nfs_mcb_data {
        struct nfs_cb_data *data;
-       off_t offset;
-       size_t count;
+       uint64_t offset;
+       uint64_t count;
 };
 
 static int nfs_lookup_path_async_internal(struct nfs_context *nfs, struct nfs_cb_data *data, struct nfs_fh3 *fh);
 
-
 void nfs_set_auth(struct nfs_context *nfs, struct AUTH *auth)
 {
 	rpc_set_auth(nfs->rpc, auth);
@@ -141,6 +173,159 @@ char *nfs_get_error(struct nfs_context *nfs)
 	return rpc_get_error(nfs->rpc);
 };
 
+static int nfs_set_context_args(struct nfs_context *nfs, char *arg, char *val)
+{
+	if (!strncmp(arg, "tcp-syncnt", 10)) {
+		rpc_set_tcp_syncnt(nfs_get_rpc_context(nfs), atoi(val));
+	} else if (!strncmp(arg, "uid", 3)) {
+		rpc_set_uid(nfs_get_rpc_context(nfs), atoi(val));
+	} else if (!strncmp(arg, "gid", 3)) {
+		rpc_set_gid(nfs_get_rpc_context(nfs), atoi(val));
+	}
+	return 0;
+}
+
+static struct nfs_url *nfs_parse_url(struct nfs_context *nfs, const char *url, int dir, int incomplete)
+{
+	struct nfs_url *urls;
+	char *strp, *flagsp, *strp2;
+
+	if (strncmp(url, "nfs://", 6)) {
+		rpc_set_error(nfs->rpc, "Invalid URL specified");
+		return NULL;
+	}
+
+	urls = malloc(sizeof(struct nfs_url));
+	if (urls == NULL) {
+		rpc_set_error(nfs->rpc, "Out of memory");
+		return NULL;
+	}
+
+	memset(urls, 0x00, sizeof(struct nfs_url));
+	urls->server = strdup(url + 6);
+	if (urls->server == NULL) {
+		nfs_destroy_url(urls);
+		rpc_set_error(nfs->rpc, "Out of memory");
+		return NULL;
+	}
+
+	if (urls->server[0] == '/' || urls->server[0] == '\0' ||
+		urls->server[0] == '?') {
+		if (incomplete) {
+			flagsp = strchr(urls->server, '?');
+			goto flags;
+		}
+		nfs_destroy_url(urls);
+		rpc_set_error(nfs->rpc, "Invalid server string");
+		return NULL;
+	}
+
+	strp = strchr(urls->server, '/');
+	if (strp == NULL) {
+		if (incomplete) {
+			flagsp = strchr(urls->server, '?');
+			goto flags;
+		}
+		nfs_destroy_url(urls);
+		rpc_set_error(nfs->rpc, "Incomplete or invalid URL specified.");
+		return NULL;
+	}
+
+	urls->path = strdup(strp);
+	if (urls->path == NULL) {
+		nfs_destroy_url(urls);
+		rpc_set_error(nfs->rpc, "Out of memory");
+		return NULL;
+	}
+	*strp = 0;
+
+	if (dir) {
+		flagsp = strchr(urls->path, '?');
+		goto flags;
+	}
+
+	strp = strrchr(urls->path, '/');
+	if (strp == NULL) {
+		if (incomplete) {
+			flagsp = strchr(urls->path, '?');
+			goto flags;
+		}
+		nfs_destroy_url(urls);
+		rpc_set_error(nfs->rpc, "Incomplete or invalid URL specified.");
+		return NULL;
+	}
+	urls->file = strdup(strp);
+	if (urls->path == NULL) {
+		nfs_destroy_url(urls);
+		rpc_set_error(nfs->rpc, "Out of memory");
+		return NULL;
+	}
+	*strp = 0;
+	flagsp = strchr(urls->file, '?');
+
+flags:
+	if (flagsp) {
+		*flagsp = 0;
+	}
+
+	if (urls->file && !strlen(urls->file)) {
+		free(urls->file);
+		urls->file = NULL;
+		if (!incomplete) {
+			nfs_destroy_url(urls);
+			rpc_set_error(nfs->rpc, "Incomplete or invalid URL specified.");
+			return NULL;
+		}
+	}
+
+	while (flagsp != NULL && *(flagsp+1) != 0) {
+		strp = flagsp + 1;
+		flagsp = strchr(strp, '&');
+		if (flagsp) {
+			*flagsp = 0;
+		}
+		strp2 = strchr(strp, '=');
+		if (strp2) {
+			*strp2 = 0;
+			strp2++;
+			nfs_set_context_args(nfs, strp, strp2);
+		}
+	}
+
+	if (urls->server && strlen(urls->server) <= 1) {
+		free(urls->server);
+		urls->server = NULL;
+	}
+
+	return urls;
+}
+
+struct nfs_url *nfs_parse_url_full(struct nfs_context *nfs, const char *url)
+{
+	return nfs_parse_url(nfs, url, 0, 0);
+}
+
+struct nfs_url *nfs_parse_url_dir(struct nfs_context *nfs, const char *url)
+{
+	return nfs_parse_url(nfs, url, 1, 0);
+}
+
+struct nfs_url *nfs_parse_url_incomplete(struct nfs_context *nfs, const char *url)
+{
+	return nfs_parse_url(nfs, url, 0, 1);
+}
+
+
+void nfs_destroy_url(struct nfs_url *url)
+{
+	if (url) {
+		free(url->server);
+		free(url->path);
+		free(url->file);
+	}
+	free(url);
+}
+
 struct nfs_context *nfs_init_context(void)
 {
 	struct nfs_context *nfs;
@@ -149,17 +334,15 @@ struct nfs_context *nfs_init_context(void)
 	if (nfs == NULL) {
 		return NULL;
 	}
+	memset(nfs, 0, sizeof(struct nfs_context));
+
 	nfs->rpc = rpc_init_context();
 	if (nfs->rpc == NULL) {
 		free(nfs);
 		return NULL;
 	}
 
-	nfs->server = NULL;
-	nfs->export = NULL;
-
-	nfs->rootfh.data.data_len = 0;
-	nfs->rootfh.data.data_val = NULL;
+	nfs->cwd = strdup("/");
 
 	return nfs;
 }
@@ -179,6 +362,11 @@ void nfs_destroy_context(struct nfs_context *nfs)
 		nfs->export = NULL;
 	}
 
+	if (nfs->cwd) {
+		free(nfs->cwd);
+		nfs->cwd = NULL;
+	}
+
 	if (nfs->rootfh.data.data_val != NULL) {
 		free(nfs->rootfh.data.data_val);
 		nfs->rootfh.data.data_val = NULL;
@@ -187,6 +375,155 @@ void nfs_destroy_context(struct nfs_context *nfs)
 	free(nfs);
 }
 
+struct rpc_cb_data {
+       char *server;
+       uint32_t program;
+       uint32_t version;
+
+       rpc_cb cb;
+       void *private_data;
+};
+
+void free_rpc_cb_data(struct rpc_cb_data *data)
+{
+	free(data->server);
+	data->server = NULL;
+	free(data);
+}
+
+static void rpc_connect_program_4_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
+{
+	struct rpc_cb_data *data = private_data;
+
+	assert(rpc->magic == RPC_CONTEXT_MAGIC);
+
+	/* Dont want any more callbacks even if the socket is closed */
+	rpc->connect_cb = NULL;
+
+	if (status == RPC_STATUS_ERROR) {
+		data->cb(rpc, status, command_data, data->private_data);
+		free_rpc_cb_data(data);
+		return;
+	}
+	if (status == RPC_STATUS_CANCEL) {
+		data->cb(rpc, status, "Command was cancelled", data->private_data);
+		free_rpc_cb_data(data);
+		return;
+	}
+
+	data->cb(rpc, status, NULL, data->private_data);
+	free_rpc_cb_data(data);
+}
+
+static void rpc_connect_program_3_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
+{
+	struct rpc_cb_data *data = private_data;
+	uint32_t rpc_port;
+
+	assert(rpc->magic == RPC_CONTEXT_MAGIC);
+
+	if (status == RPC_STATUS_ERROR) {
+		data->cb(rpc, status, command_data, data->private_data);
+		free_rpc_cb_data(data);
+		return;
+	}
+	if (status == RPC_STATUS_CANCEL) {
+		data->cb(rpc, status, "Command was cancelled", data->private_data);
+		free_rpc_cb_data(data);
+		return;
+	}
+
+	rpc_port = *(uint32_t *)command_data;
+	if (rpc_port == 0) {
+		rpc_set_error(rpc, "RPC error. Program is not available on %s", data->server);
+		data->cb(rpc, RPC_STATUS_ERROR, rpc_get_error(rpc), data->private_data);
+		free_rpc_cb_data(data);
+		return;
+	}
+
+	rpc_disconnect(rpc, "normal disconnect");
+	if (rpc_connect_async(rpc, data->server, rpc_port, rpc_connect_program_4_cb, data) != 0) {
+		data->cb(rpc, status, command_data, data->private_data);
+		free_rpc_cb_data(data);
+		return;
+	}
+}
+
+static void rpc_connect_program_2_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
+{
+	struct rpc_cb_data *data = private_data;
+
+	assert(rpc->magic == RPC_CONTEXT_MAGIC);
+
+	if (status == RPC_STATUS_ERROR) {
+		data->cb(rpc, status, command_data, data->private_data);
+		free_rpc_cb_data(data);
+		return;
+	}
+	if (status == RPC_STATUS_CANCEL) {
+		data->cb(rpc, status, "Command was cancelled", data->private_data);
+		free_rpc_cb_data(data);
+		return;
+	}
+
+	if (rpc_pmap_getport_async(rpc, data->program, data->version, IPPROTO_TCP, rpc_connect_program_3_cb, private_data) != 0) {
+		data->cb(rpc, status, command_data, data->private_data);
+		free_rpc_cb_data(data);
+		return;
+	}
+}
+
+static void rpc_connect_program_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
+{
+	struct rpc_cb_data *data = private_data;
+
+	assert(rpc->magic == RPC_CONTEXT_MAGIC);
+
+	/* Dont want any more callbacks even if the socket is closed */
+	rpc->connect_cb = NULL;
+
+	if (status == RPC_STATUS_ERROR) {
+		data->cb(rpc, status, command_data, data->private_data);
+		free_rpc_cb_data(data);
+		return;
+	}
+	if (status == RPC_STATUS_CANCEL) {
+		data->cb(rpc, status, "Command was cancelled", data->private_data);
+		free_rpc_cb_data(data);
+		return;
+	}
+
+	if (rpc_pmap_null_async(rpc, rpc_connect_program_2_cb, data) != 0) {
+		data->cb(rpc, status, command_data, data->private_data);
+		free_rpc_cb_data(data);
+		return;
+	}
+}
+
+int rpc_connect_program_async(struct rpc_context *rpc, char *server, int program, int version, rpc_cb cb, void *private_data)
+{
+	struct rpc_cb_data *data;
+
+	data = malloc(sizeof(struct rpc_cb_data));
+	if (data == NULL) {
+		return -1;
+	}
+	memset(data, 0, sizeof(struct rpc_cb_data));
+	data->server       = strdup(server);
+	data->program      = program;
+	data->version      = version;
+
+	data->cb           = cb;
+	data->private_data = private_data;
+
+	if (rpc_connect_async(rpc, server, 111, rpc_connect_program_1_cb, data) != 0) {
+		rpc_set_error(rpc, "Failed to start connection");
+		free_rpc_cb_data(data);
+		return -1;
+	}
+	return 0;
+}
+
 void free_nfs_cb_data(struct nfs_cb_data *data)
 {
 	if (data->saved_path != NULL) {
@@ -216,11 +553,13 @@ void free_nfs_cb_data(struct nfs_cb_data *data)
 
 
 
-static void nfs_mount_10_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
+static void nfs_mount_10_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
 {
 	struct nfs_cb_data *data = private_data;
 	struct nfs_context *nfs = data->nfs;
 
+	assert(rpc->magic == RPC_CONTEXT_MAGIC);
+
 	if (status == RPC_STATUS_ERROR) {
 		data->cb(-EFAULT, nfs, command_data, data->private_data);
 		free_nfs_cb_data(data);
@@ -241,6 +580,9 @@ static void nfs_mount_9_cb(struct rpc_context *rpc, int status, void *command_da
 	struct nfs_cb_data *data = private_data;
 	struct nfs_context *nfs = data->nfs;
 	FSINFO3res *res = command_data;
+	struct GETATTR3args args;
+
+	assert(rpc->magic == RPC_CONTEXT_MAGIC);
 
 	if (status == RPC_STATUS_ERROR) {
 		data->cb(-EFAULT, nfs, command_data, data->private_data);
@@ -256,7 +598,10 @@ static void nfs_mount_9_cb(struct rpc_context *rpc, int status, void *command_da
 	nfs->readmax = res->FSINFO3res_u.resok.rtmax;
 	nfs->writemax = res->FSINFO3res_u.resok.wtmax;
 
-	if (rpc_nfs_getattr_async(rpc, nfs_mount_10_cb, &nfs->rootfh, data) != 0) {
+	memset(&args, 0, sizeof(GETATTR3args));
+	args.object = nfs->rootfh;
+
+	if (rpc_nfs3_getattr_async(rpc, nfs_mount_10_cb, &args, data) != 0) {
 		data->cb(-ENOMEM, nfs, command_data, data->private_data);
 		free_nfs_cb_data(data);
 		return;
@@ -267,6 +612,9 @@ static void nfs_mount_8_cb(struct rpc_context *rpc, int status, void *command_da
 {
 	struct nfs_cb_data *data = private_data;
 	struct nfs_context *nfs = data->nfs;
+	struct FSINFO3args args;
+
+	assert(rpc->magic == RPC_CONTEXT_MAGIC);
 
 	if (status == RPC_STATUS_ERROR) {
 		data->cb(-EFAULT, nfs, command_data, data->private_data);
@@ -279,7 +627,8 @@ static void nfs_mount_8_cb(struct rpc_context *rpc, int status, void *command_da
 		return;
 	}
 
-	if (rpc_nfs_fsinfo_async(rpc, nfs_mount_9_cb, &nfs->rootfh, data) != 0) {
+	args.fsroot = nfs->rootfh;
+	if (rpc_nfs3_fsinfo_async(rpc, nfs_mount_9_cb, &args, data) != 0) {
 		data->cb(-ENOMEM, nfs, command_data, data->private_data);
 		free_nfs_cb_data(data);
 		return;
@@ -292,6 +641,11 @@ static void nfs_mount_7_cb(struct rpc_context *rpc, int status, void *command_da
 	struct nfs_cb_data *data = private_data;
 	struct nfs_context *nfs = data->nfs;
 
+	assert(rpc->magic == RPC_CONTEXT_MAGIC);
+
+	/* Dont want any more callbacks even if the socket is closed */
+	rpc->connect_cb = NULL;
+
 	if (status == RPC_STATUS_ERROR) {
 		data->cb(-EFAULT, nfs, command_data, data->private_data);
 		free_nfs_cb_data(data);
@@ -303,7 +657,7 @@ static void nfs_mount_7_cb(struct rpc_context *rpc, int status, void *command_da
 		return;
 	}
 
-	if (rpc_nfs_null_async(rpc, nfs_mount_8_cb, data) != 0) {
+	if (rpc_nfs3_null_async(rpc, nfs_mount_8_cb, data) != 0) {
 		data->cb(-ENOMEM, nfs, command_data, data->private_data);
 		free_nfs_cb_data(data);
 		return;
@@ -317,6 +671,8 @@ static void nfs_mount_6_cb(struct rpc_context *rpc, int status, void *command_da
 	struct nfs_context *nfs = data->nfs;
 	mountres3 *res;
 
+	assert(rpc->magic == RPC_CONTEXT_MAGIC);
+
 	if (status == RPC_STATUS_ERROR) {
 		data->cb(-EFAULT, nfs, command_data, data->private_data);
 		free_nfs_cb_data(data);
@@ -352,6 +708,8 @@ static void nfs_mount_6_cb(struct rpc_context *rpc, int status, void *command_da
 		free_nfs_cb_data(data);
 		return;
 	}
+	/* NFS TCP connections we want to autoreconnect after sessions are torn down (due to inactivity or error) */
+	rpc_set_autoreconnect(rpc);
 }
 
 
@@ -360,6 +718,8 @@ static void nfs_mount_5_cb(struct rpc_context *rpc, int status, void *command_da
 	struct nfs_cb_data *data = private_data;
 	struct nfs_context *nfs = data->nfs;
 
+	assert(rpc->magic == RPC_CONTEXT_MAGIC);
+
 	if (status == RPC_STATUS_ERROR) {
 		data->cb(-EFAULT, nfs, command_data, data->private_data);
 		free_nfs_cb_data(data);
@@ -371,7 +731,7 @@ static void nfs_mount_5_cb(struct rpc_context *rpc, int status, void *command_da
 		return;
 	}
 
-	if (rpc_mount_mnt_async(rpc, nfs_mount_6_cb, nfs->export, data) != 0) {
+	if (rpc_mount3_mnt_async(rpc, nfs_mount_6_cb, nfs->export, data) != 0) {
 		data->cb(-ENOMEM, nfs, command_data, data->private_data);
 		free_nfs_cb_data(data);
 		return;
@@ -383,6 +743,11 @@ static void nfs_mount_4_cb(struct rpc_context *rpc, int status, void *command_da
 	struct nfs_cb_data *data = private_data;
 	struct nfs_context *nfs = data->nfs;
 
+	assert(rpc->magic == RPC_CONTEXT_MAGIC);
+
+	/* Dont want any more callbacks even if the socket is closed */
+	rpc->connect_cb = NULL;
+
 	if (status == RPC_STATUS_ERROR) {
 		data->cb(-EFAULT, nfs, command_data, data->private_data);
 		free_nfs_cb_data(data);
@@ -394,7 +759,7 @@ static void nfs_mount_4_cb(struct rpc_context *rpc, int status, void *command_da
 		return;
 	}
 
-	if (rpc_mount_null_async(rpc, nfs_mount_5_cb, data) != 0) {
+	if (rpc_mount3_null_async(rpc, nfs_mount_5_cb, data) != 0) {
 		data->cb(-ENOMEM, nfs, command_data, data->private_data);
 		free_nfs_cb_data(data);
 		return;
@@ -407,7 +772,9 @@ static void nfs_mount_3_cb(struct rpc_context *rpc, int status, void *command_da
 	struct nfs_context *nfs = data->nfs;
 	uint32_t mount_port;
 
-	if (status == RPC_STATUS_ERROR) {	
+	assert(rpc->magic == RPC_CONTEXT_MAGIC);
+
+	if (status == RPC_STATUS_ERROR) {
 		data->cb(-EFAULT, nfs, command_data, data->private_data);
 		free_nfs_cb_data(data);
 		return;
@@ -440,6 +807,8 @@ static void nfs_mount_2_cb(struct rpc_context *rpc, int status, void *command_da
 	struct nfs_cb_data *data = private_data;
 	struct nfs_context *nfs = data->nfs;
 
+	assert(rpc->magic == RPC_CONTEXT_MAGIC);
+
 	if (status == RPC_STATUS_ERROR) {
 		data->cb(-EFAULT, nfs, command_data, data->private_data);
 		free_nfs_cb_data(data);
@@ -451,7 +820,7 @@ static void nfs_mount_2_cb(struct rpc_context *rpc, int status, void *command_da
 		return;
 	}
 
-	if (rpc_pmap_getport_async(rpc, MOUNT_PROGRAM, MOUNT_V3, nfs_mount_3_cb, private_data) != 0) {
+	if (rpc_pmap_getport_async(rpc, MOUNT_PROGRAM, MOUNT_V3, IPPROTO_TCP, nfs_mount_3_cb, private_data) != 0) {
 		data->cb(-ENOMEM, nfs, command_data, data->private_data);
 		free_nfs_cb_data(data);
 		return;
@@ -463,6 +832,11 @@ static void nfs_mount_1_cb(struct rpc_context *rpc, int status, void *command_da
 	struct nfs_cb_data *data = private_data;
 	struct nfs_context *nfs = data->nfs;
 
+	assert(rpc->magic == RPC_CONTEXT_MAGIC);
+
+	/* Dont want any more callbacks even if the socket is closed */
+	rpc->connect_cb = NULL;
+
 	if (status == RPC_STATUS_ERROR) {
 		data->cb(-EFAULT, nfs, command_data, data->private_data);
 		free_nfs_cb_data(data);
@@ -499,12 +873,10 @@ int nfs_mount_async(struct nfs_context *nfs, const char *server, const char *exp
 	new_export = strdup(export);
 	if (nfs->server != NULL) {
 		free(nfs->server);
-		nfs->server = NULL;
 	}
 	nfs->server        = new_server;
 	if (nfs->export != NULL) {
 		free(nfs->export);
-		nfs->export = NULL;
 	}
 	nfs->export        = new_export;
 	data->nfs          = nfs;
@@ -526,12 +898,14 @@ int nfs_mount_async(struct nfs_context *nfs, const char *server, const char *exp
  * Functions to first look up a path, component by component, and then finally call a specific function once
  * the filehandle for the final component is found.
  */
-static void nfs_lookup_path_1_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
+static void nfs_lookup_path_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
 {
 	struct nfs_cb_data *data = private_data;
 	struct nfs_context *nfs = data->nfs;
 	LOOKUP3res *res;
 
+	assert(rpc->magic == RPC_CONTEXT_MAGIC);
+
 	if (status == RPC_STATUS_ERROR) {
 		data->cb(-EFAULT, nfs, command_data, data->private_data);
 		free_nfs_cb_data(data);
@@ -561,17 +935,24 @@ static void nfs_lookup_path_1_cb(struct rpc_context *rpc _U_, int status, void *
 
 static int nfs_lookup_path_async_internal(struct nfs_context *nfs, struct nfs_cb_data *data, struct nfs_fh3 *fh)
 {
-	char *path, *str;
+	char *path, *slash;
+	LOOKUP3args args;
 
 	while (*data->path == '/') {
 	      data->path++;
 	}
 
 	path = data->path;
-	str = strchr(path, '/');
-	if (str != NULL) {
-		*str = 0;
-		data->path = str+1;
+	slash = strchr(path, '/');
+	if (slash != NULL) {
+		/* Clear slash so that path is a zero terminated string for
+		 * the current path component. Set it back to '/' again later
+		 * when we are finished referencing this component so that
+		 * data->saved_path will still point to the full
+		 * normalized path.
+		 */
+		*slash = 0;
+		data->path = slash+1;
 	} else {
 		while (*data->path != 0) {
 		      data->path++;
@@ -588,31 +969,144 @@ static int nfs_lookup_path_async_internal(struct nfs_context *nfs, struct nfs_cb
 			return -1;
 		}
 		memcpy(data->fh.data.data_val, fh->data.data_val, data->fh.data.data_len);
+		if (slash != NULL) {
+			*slash = '/';
+		}
 		data->continue_cb(nfs, data);
 		return 0;
 	}
 
-	if (rpc_nfs_lookup_async(nfs->rpc, nfs_lookup_path_1_cb, fh, path, data) != 0) {
+
+	memset(&args, 0, sizeof(LOOKUP3args));
+	args.what.dir = *fh;
+	args.what.name = path;
+
+	if (rpc_nfs3_lookup_async(nfs->rpc, nfs_lookup_path_1_cb, &args, data) != 0) {
 		rpc_set_error(nfs->rpc, "RPC error: Failed to send lookup call for %s", data->path);
 		data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
 		free_nfs_cb_data(data);
 		return -1;
 	}
+	if (slash != NULL) {
+		*slash = '/';
+	}
 	return 0;
 }
 
-static int nfs_lookuppath_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data, continue_func continue_cb, void *continue_data, void (*free_continue_data)(void *), int continue_int)
+static int nfs_normalize_path(struct nfs_context *nfs, char *path)
 {
-	struct nfs_cb_data *data;
+	char *str;
+	int len;
+
+	/* // -> / */
+	while ((str = strstr(path, "//"))) {
+		while(*str) {
+			*str = *(str + 1);
+			str++;
+		}
+	}
+
+	/* /./ -> / */
+	while ((str = strstr(path, "/./"))) {
+		while(*(str + 1)) {
+			*str = *(str + 2);
+			str++;
+		}
+	}
 
+	/* ^/../ -> error */
+	if (!strncmp(path, "/../", 4)) {
+		rpc_set_error(nfs->rpc,
+			"Absolute path starts with '/../' "
+			"during normalization");
+		return -1;
+	}
+
+	/* ^[^/] -> error */
 	if (path[0] != '/') {
-		rpc_set_error(nfs->rpc, "Pathname is not absulute %s", path);
+		rpc_set_error(nfs->rpc,
+			"Absolute path does not start with '/'");
 		return -1;
 	}
 
+	/* /string/../ -> / */
+	while ((str = strstr(path, "/../"))) {
+		char *tmp;
+
+		if (!strncmp(path, "/../", 4)) {
+			rpc_set_error(nfs->rpc,
+				"Absolute path starts with '/../' "
+				"during normalization");
+			return -1;
+		}
+
+		tmp = str - 1;
+		while (*tmp != '/') {
+			tmp--;
+		}
+		str += 3;
+		while((*(tmp++) = *(str++)) != '\0')
+			;
+	}
+
+	/* /$ -> \0 */
+	len = strlen(path);
+	if (len >= 1) {
+		if (path[len - 1] == '/') {
+			path[len - 1] = '\0';
+			len--;
+		}
+	}
+	if (path[0] == '\0') {
+		rpc_set_error(nfs->rpc,
+			"Absolute path became '' "
+			"during normalization");
+		return -1;
+	}
+
+	/* /.$ -> \0 */
+	if (len >= 2) {
+		if (!strcmp(&path[len - 2], "/.")) {
+			path[len - 2] = '\0';
+			len -= 2;
+		}
+	}
+
+	/* ^/..$ -> error */
+	if (!strcmp(path, "/..")) {
+		rpc_set_error(nfs->rpc,
+			"Absolute path is '/..' "
+			"during normalization");
+		return -1;
+	}
+
+	/* /string/..$ -> / */
+	if (len >= 3) {
+		if (!strcmp(&path[len - 3], "/..")) {
+			char *tmp = &path[len - 3];
+			while (*--tmp != '/')
+				;
+			*tmp = '\0';
+		}
+	}
+
+	return 0;
+}
+
+static int nfs_lookuppath_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data, continue_func continue_cb, void *continue_data, void (*free_continue_data)(void *), int continue_int)
+{
+	struct nfs_cb_data *data;
+
+	if (path[0] == '\0') {
+		path = ".";
+	}
+
 	data = malloc(sizeof(struct nfs_cb_data));
 	if (data == NULL) {
-		rpc_set_error(nfs->rpc, "out of memory: failed to allocate nfs_cb_data structure");
+		rpc_set_error(nfs->rpc, "out of memory: failed to allocate "
+			"nfs_cb_data structure");
+		if (free_continue_data)
+			free_continue_data(continue_data);
 		return -1;
 	}
 	memset(data, 0, sizeof(struct nfs_cb_data));
@@ -623,12 +1117,29 @@ static int nfs_lookuppath_async(struct nfs_context *nfs, const char *path, nfs_c
 	data->free_continue_data = free_continue_data;
 	data->continue_int       = continue_int;
 	data->private_data       = private_data;
-	data->saved_path         = strdup(path);
+	if (path[0] == '/') {
+		data->saved_path = strdup(path);
+	} else {
+		data->saved_path = malloc(strlen(path) + strlen(nfs->cwd) + 2);
+		if (data->saved_path == NULL) {
+			rpc_set_error(nfs->rpc, "out of memory: failed to "
+				"malloc path string");
+			free_nfs_cb_data(data);
+			return -1;
+		}
+		sprintf(data->saved_path, "%s/%s", nfs->cwd, path);
+	}
+
 	if (data->saved_path == NULL) {
 		rpc_set_error(nfs->rpc, "out of memory: failed to copy path string");
 		free_nfs_cb_data(data);
 		return -1;
 	}
+	if (nfs_normalize_path(nfs, data->saved_path) != 0) {
+		free_nfs_cb_data(data);
+		return -1;
+	}
+
 	data->path = data->saved_path;
 
 	if (nfs_lookup_path_async_internal(nfs, data, &nfs->rootfh) != 0) {
@@ -645,12 +1156,18 @@ static int nfs_lookuppath_async(struct nfs_context *nfs, const char *path, nfs_c
 /*
  * Async stat()
  */
-static void nfs_stat_1_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
+static void nfs_stat_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
 {
 	GETATTR3res *res;
 	struct nfs_cb_data *data = private_data;
 	struct nfs_context *nfs = data->nfs;
+#ifdef WIN32
+  struct __stat64 st;
+#else
 	struct stat st;
+#endif
+
+	assert(rpc->magic == RPC_CONTEXT_MAGIC);
 
 	if (status == RPC_STATUS_ERROR) {
 		data->cb(-EFAULT, nfs, command_data, data->private_data);
@@ -677,6 +1194,9 @@ static void nfs_stat_1_cb(struct rpc_context *rpc _U_, int status, void *command
 	if (res->GETATTR3res_u.resok.obj_attributes.type == NF3DIR) {
 		st.st_mode |= S_IFDIR ;
 	}
+	if (res->GETATTR3res_u.resok.obj_attributes.type == NF3REG) {
+		st.st_mode |= S_IFREG ;
+	}
         st.st_nlink   = res->GETATTR3res_u.resok.obj_attributes.nlink;
         st.st_uid     = res->GETATTR3res_u.resok.obj_attributes.uid;
         st.st_gid     = res->GETATTR3res_u.resok.obj_attributes.gid;
@@ -685,7 +1205,7 @@ static void nfs_stat_1_cb(struct rpc_context *rpc _U_, int status, void *command
 #ifndef WIN32
         st.st_blksize = 4096;
         st.st_blocks  = res->GETATTR3res_u.resok.obj_attributes.size / 4096;
-#endif//WIN32        
+#endif//WIN32
         st.st_atime   = res->GETATTR3res_u.resok.obj_attributes.atime.seconds;
         st.st_mtime   = res->GETATTR3res_u.resok.obj_attributes.mtime.seconds;
         st.st_ctime   = res->GETATTR3res_u.resok.obj_attributes.ctime.seconds;
@@ -696,7 +1216,12 @@ static void nfs_stat_1_cb(struct rpc_context *rpc _U_, int status, void *command
 
 static int nfs_stat_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
 {
-	if (rpc_nfs_getattr_async(nfs->rpc, nfs_stat_1_cb, &data->fh, data) != 0) {
+	struct GETATTR3args args;
+
+	memset(&args, 0, sizeof(GETATTR3args));
+	args.object = data->fh;
+
+	if (rpc_nfs3_getattr_async(nfs->rpc, nfs_stat_1_cb, &args, data) != 0) {
 		rpc_set_error(nfs->rpc, "RPC error: Failed to send STAT GETATTR call for %s", data->path);
 		data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
 		free_nfs_cb_data(data);
@@ -717,12 +1242,59 @@ int nfs_stat_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *p
 
 
 
-
-
 /*
  * Async open()
  */
-static void nfs_open_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
+static void nfs_open_trunc_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
+{
+	struct nfs_cb_data *data = private_data;
+	struct nfs_context *nfs = data->nfs;
+	struct nfsfh *nfsfh;
+	SETATTR3res *res;
+
+	assert(rpc->magic == RPC_CONTEXT_MAGIC);
+
+	if (status == RPC_STATUS_ERROR) {
+		data->cb(-EFAULT, nfs, command_data, data->private_data);
+		free_nfs_cb_data(data);
+		return;
+	}
+	if (status == RPC_STATUS_CANCEL) {
+		data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
+		free_nfs_cb_data(data);
+		return;
+	}
+
+	res = command_data;
+	if (res->status != NFS3_OK) {
+		rpc_set_error(nfs->rpc, "NFS: Setattr failed with %s(%d)", nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
+		data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
+		free_nfs_cb_data(data);
+		return;
+	}
+
+	nfsfh = malloc(sizeof(struct nfsfh));
+	if (nfsfh == NULL) {
+		rpc_set_error(nfs->rpc, "NFS: Failed to allocate nfsfh structure");
+		data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
+		free_nfs_cb_data(data);
+		return;
+	}
+	memset(nfsfh, 0, sizeof(struct nfsfh));
+
+	if (data->continue_int & O_SYNC) {
+		nfsfh->is_sync = 1;
+	}
+
+	/* steal the filehandle */
+	nfsfh->fh = data->fh;
+	data->fh.data.data_val = NULL;
+
+	data->cb(0, nfs, nfsfh, data->private_data);
+	free_nfs_cb_data(data);
+}
+
+static void nfs_open_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
 {
 	ACCESS3res *res;
 	struct nfs_cb_data *data = private_data;
@@ -730,6 +1302,8 @@ static void nfs_open_cb(struct rpc_context *rpc _U_, int status, void *command_d
 	struct nfsfh *nfsfh;
 	unsigned int nfsmode = 0;
 
+	assert(rpc->magic == RPC_CONTEXT_MAGIC);
+
 	if (status == RPC_STATUS_ERROR) {
 		data->cb(-EFAULT, nfs, command_data, data->private_data);
 		free_nfs_cb_data(data);
@@ -773,6 +1347,28 @@ static void nfs_open_cb(struct rpc_context *rpc _U_, int status, void *command_d
 		return;
 	}
 
+	/* Try to truncate it if we were requested to */
+	if ((data->continue_int & O_TRUNC) &&
+	    (data->continue_int & (O_RDWR|O_WRONLY))) {
+		SETATTR3args args;
+
+		memset(&args, 0, sizeof(SETATTR3args));
+		args.object = data->fh;
+		args.new_attributes.size.set_it = 1;
+		args.new_attributes.size.set_size3_u.size = 0;
+
+		if (rpc_nfs3_setattr_async(nfs->rpc, nfs_open_trunc_cb, &args,
+				data) != 0) {
+			rpc_set_error(nfs->rpc, "RPC error: Failed to send "
+				"SETATTR call for %s", data->path);
+			data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc),
+				data->private_data);
+			free_nfs_cb_data(data);
+			return;
+		}
+		return;
+	}
+
 	nfsfh = malloc(sizeof(struct nfsfh));
 	if (nfsfh == NULL) {
 		rpc_set_error(nfs->rpc, "NFS: Failed to allocate nfsfh structure");
@@ -787,8 +1383,7 @@ static void nfs_open_cb(struct rpc_context *rpc _U_, int status, void *command_d
 	}
 
 	/* steal the filehandle */
-	nfsfh->fh.data.data_len = data->fh.data.data_len;
-	nfsfh->fh.data.data_val = data->fh.data.data_val;
+	nfsfh->fh = data->fh;
 	data->fh.data.data_val = NULL;
 
 	data->cb(0, nfs, nfsfh, data->private_data);
@@ -798,6 +1393,7 @@ static void nfs_open_cb(struct rpc_context *rpc _U_, int status, void *command_d
 static int nfs_open_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
 {
 	int nfsmode = 0;
+	ACCESS3args args;
 
 	if (data->continue_int & O_WRONLY) {
 		nfsmode |= ACCESS3_MODIFY;
@@ -809,18 +1405,24 @@ static int nfs_open_continue_internal(struct nfs_context *nfs, struct nfs_cb_dat
 		nfsmode |= ACCESS3_READ;
 	}
 
-	if (rpc_nfs_access_async(nfs->rpc, nfs_open_cb, &data->fh, nfsmode, data) != 0) {
-		rpc_set_error(nfs->rpc, "RPC error: Failed to send OPEN ACCESS call for %s", data->path);
-		data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
+	memset(&args, 0, sizeof(ACCESS3args));
+	args.object = data->fh;
+	args.access = nfsmode;
+
+	if (rpc_nfs3_access_async(nfs->rpc, nfs_open_cb, &args, data) != 0) {
+		rpc_set_error(nfs->rpc, "RPC error: Failed to send OPEN ACCESS "
+				"call for %s", data->path);
+		data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc),
+				data->private_data);
 		free_nfs_cb_data(data);
 		return -1;
 	}
 	return 0;
 }
 
-int nfs_open_async(struct nfs_context *nfs, const char *path, int mode, nfs_cb cb, void *private_data)
+int nfs_open_async(struct nfs_context *nfs, const char *path, int flags, nfs_cb cb, void *private_data)
 {
-	if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_open_continue_internal, NULL, NULL, mode) != 0) {
+	if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_open_continue_internal, NULL, NULL, flags) != 0) {
 		rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
 		return -1;
 	}
@@ -829,18 +1431,44 @@ int nfs_open_async(struct nfs_context *nfs, const char *path, int mode, nfs_cb c
 }
 
 
+/*
+ * Async chdir()
+ */
+static int nfs_chdir_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
+{
+	/* steal saved_path */
+	free(nfs->cwd);
+	nfs->cwd = data->saved_path;
+	data->saved_path = NULL;
 
+	data->cb(0, nfs, NULL, data->private_data);
+	free_nfs_cb_data(data);
+
+	return 0;
+}
+
+int nfs_chdir_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
+{
+	if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_chdir_continue_internal, NULL, NULL, 0) != 0) {
+		rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
+		return -1;
+	}
+
+	return 0;
+}
 
 
 /*
  * Async pread()
  */
-static void nfs_pread_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
+static void nfs_pread_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
 {
 	struct nfs_cb_data *data = private_data;
 	struct nfs_context *nfs = data->nfs;
 	READ3res *res;
 
+	assert(rpc->magic == RPC_CONTEXT_MAGIC);
+
 	if (status == RPC_STATUS_ERROR) {
 		data->cb(-EFAULT, nfs, command_data, data->private_data);
 		free_nfs_cb_data(data);
@@ -865,13 +1493,15 @@ static void nfs_pread_cb(struct rpc_context *rpc _U_, int status, void *command_
 	free_nfs_cb_data(data);
 }
 
-static void nfs_pread_mcb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
+static void nfs_pread_mcb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
 {
 	struct nfs_mcb_data *mdata = private_data;
 	struct nfs_cb_data *data = mdata->data;
 	struct nfs_context *nfs = data->nfs;
 	READ3res *res;
 
+	assert(rpc->magic == RPC_CONTEXT_MAGIC);
+
 	data->num_calls--;
 
 	if (status == RPC_STATUS_ERROR) {
@@ -925,7 +1555,7 @@ static void nfs_pread_mcb(struct rpc_context *rpc _U_, int status, void *command
 	free(mdata);
 }
 
-int nfs_pread_async(struct nfs_context *nfs, struct nfsfh *nfsfh, off_t offset, size_t count, nfs_cb cb, void *private_data)
+int nfs_pread_async(struct nfs_context *nfs, struct nfsfh *nfsfh, uint64_t offset, uint64_t count, nfs_cb cb, void *private_data)
 {
 	struct nfs_cb_data *data;
 
@@ -943,7 +1573,14 @@ int nfs_pread_async(struct nfs_context *nfs, struct nfsfh *nfsfh, off_t offset,
 	nfsfh->offset = offset;
 
 	if (count <= nfs_get_readmax(nfs)) {
-		if (rpc_nfs_read_async(nfs->rpc, nfs_pread_cb, &nfsfh->fh, offset, count, data) != 0) {
+		READ3args args;
+
+		memset(&args, 0, sizeof(READ3args));
+		args.file = nfsfh->fh;
+		args.offset = offset;
+		args.count = count;
+
+		if (rpc_nfs3_read_async(nfs->rpc, nfs_pread_cb, &args, data) != 0) {
 			rpc_set_error(nfs->rpc, "RPC error: Failed to send READ call for %s", data->path);
 			data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
 			free_nfs_cb_data(data);
@@ -954,7 +1591,7 @@ int nfs_pread_async(struct nfs_context *nfs, struct nfsfh *nfsfh, off_t offset,
 
 	/* trying to read more than maximum server read size, we has to chop it up into smaller
 	 * reads and collect into a reassembly buffer.
-	 * we send all reads in parallell so that performance is still good.
+	 * we send all reads in parallel so that performance is still good.
 	 */
 	data->max_offset = offset;
 	data->start_offset = offset;
@@ -968,8 +1605,9 @@ int nfs_pread_async(struct nfs_context *nfs, struct nfsfh *nfsfh, off_t offset,
 	}
 
 	while (count > 0) {
-		size_t readcount = count;
+		uint64_t readcount = count;
 		struct nfs_mcb_data *mdata;
+		READ3args args;
 
 		if (readcount > nfs_get_readmax(nfs)) {
 			readcount = nfs_get_readmax(nfs);
@@ -984,7 +1622,13 @@ int nfs_pread_async(struct nfs_context *nfs, struct nfsfh *nfsfh, off_t offset,
 		mdata->data   = data;
 		mdata->offset = offset;
 		mdata->count  = readcount;
-		if (rpc_nfs_read_async(nfs->rpc, nfs_pread_mcb, &nfsfh->fh, offset, readcount, mdata) != 0) {
+
+		memset(&args, 0, sizeof(READ3args));
+		args.file = nfsfh->fh;
+		args.offset = offset;
+		args.count = readcount;
+
+		if (rpc_nfs3_read_async(nfs->rpc, nfs_pread_mcb, &args, mdata) != 0) {
 			rpc_set_error(nfs->rpc, "RPC error: Failed to send READ call for %s", data->path);
 			data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
 			free(mdata);
@@ -1002,7 +1646,7 @@ int nfs_pread_async(struct nfs_context *nfs, struct nfsfh *nfsfh, off_t offset,
 /*
  * Async read()
  */
-int nfs_read_async(struct nfs_context *nfs, struct nfsfh *nfsfh, size_t count, nfs_cb cb, void *private_data)
+int nfs_read_async(struct nfs_context *nfs, struct nfsfh *nfsfh, uint64_t count, nfs_cb cb, void *private_data)
 {
 	return nfs_pread_async(nfs, nfsfh, nfsfh->offset, count, cb, private_data);
 }
@@ -1012,12 +1656,14 @@ int nfs_read_async(struct nfs_context *nfs, struct nfsfh *nfsfh, size_t count, n
 /*
  * Async pwrite()
  */
-static void nfs_pwrite_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
+static void nfs_pwrite_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
 {
 	struct nfs_cb_data *data = private_data;
 	struct nfs_context *nfs = data->nfs;
 	WRITE3res *res;
 
+	assert(rpc->magic == RPC_CONTEXT_MAGIC);
+
 	if (status == RPC_STATUS_ERROR) {
 		data->cb(-EFAULT, nfs, command_data, data->private_data);
 		free_nfs_cb_data(data);
@@ -1042,13 +1688,15 @@ static void nfs_pwrite_cb(struct rpc_context *rpc _U_, int status, void *command
 	free_nfs_cb_data(data);
 }
 
-static void nfs_pwrite_mcb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
+static void nfs_pwrite_mcb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
 {
 	struct nfs_mcb_data *mdata = private_data;
 	struct nfs_cb_data *data = mdata->data;
 	struct nfs_context *nfs = data->nfs;
 	WRITE3res *res;
 
+	assert(rpc->magic == RPC_CONTEXT_MAGIC);
+
 	data->num_calls--;
 
 	if (status == RPC_STATUS_ERROR) {
@@ -1101,7 +1749,7 @@ static void nfs_pwrite_mcb(struct rpc_context *rpc _U_, int status, void *comman
 }
 
 
-int nfs_pwrite_async(struct nfs_context *nfs, struct nfsfh *nfsfh, off_t offset, size_t count, char *buf, nfs_cb cb, void *private_data)
+int nfs_pwrite_async(struct nfs_context *nfs, struct nfsfh *nfsfh, uint64_t offset, uint64_t count, char *buf, nfs_cb cb, void *private_data)
 {
 	struct nfs_cb_data *data;
 
@@ -1119,7 +1767,17 @@ int nfs_pwrite_async(struct nfs_context *nfs, struct nfsfh *nfsfh, off_t offset,
 	nfsfh->offset = offset;
 
 	if (count <= nfs_get_writemax(nfs)) {
-		if (rpc_nfs_write_async(nfs->rpc, nfs_pwrite_cb, &nfsfh->fh, buf, offset, count, nfsfh->is_sync?FILE_SYNC:UNSTABLE, data) != 0) {
+		WRITE3args args;
+
+		memset(&args, 0, sizeof(WRITE3args));
+		args.file = nfsfh->fh;
+		args.offset = offset;
+		args.count  = count;
+		args.stable = nfsfh->is_sync?FILE_SYNC:UNSTABLE;
+		args.data.data_len = count;
+		args.data.data_val = buf;
+
+		if (rpc_nfs3_write_async(nfs->rpc, nfs_pwrite_cb, &args, data) != 0) {
 			rpc_set_error(nfs->rpc, "RPC error: Failed to send WRITE call for %s", data->path);
 			data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
 			free_nfs_cb_data(data);
@@ -1130,14 +1788,15 @@ int nfs_pwrite_async(struct nfs_context *nfs, struct nfsfh *nfsfh, off_t offset,
 
 	/* trying to write more than maximum server write size, we has to chop it up into smaller
 	 * chunks.
-	 * we send all writes in parallell so that performance is still good.
+	 * we send all writes in parallel so that performance is still good.
 	 */
 	data->max_offset = offset;
 	data->start_offset = offset;
 
 	while (count > 0) {
-		size_t writecount = count;
+		uint64_t writecount = count;
 		struct nfs_mcb_data *mdata;
+		WRITE3args args;
 
 		if (writecount > nfs_get_writemax(nfs)) {
 			writecount = nfs_get_writemax(nfs);
@@ -1153,7 +1812,15 @@ int nfs_pwrite_async(struct nfs_context *nfs, struct nfsfh *nfsfh, off_t offset,
 		mdata->offset = offset;
 		mdata->count  = writecount;
 
-		if (rpc_nfs_write_async(nfs->rpc, nfs_pwrite_mcb, &nfsfh->fh, &buf[offset - data->start_offset], offset, writecount, nfsfh->is_sync?FILE_SYNC:UNSTABLE, mdata) != 0) {
+		memset(&args, 0, sizeof(WRITE3args));
+		args.file = nfsfh->fh;
+		args.offset = offset;
+		args.count  = writecount;
+		args.stable = nfsfh->is_sync?FILE_SYNC:UNSTABLE;
+		args.data.data_len = writecount;
+		args.data.data_val = &buf[offset - data->start_offset];
+
+		if (rpc_nfs3_write_async(nfs->rpc, nfs_pwrite_mcb, &args, mdata) != 0) {
 			rpc_set_error(nfs->rpc, "RPC error: Failed to send WRITE call for %s", data->path);
 			data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
 			free(mdata);
@@ -1171,7 +1838,7 @@ int nfs_pwrite_async(struct nfs_context *nfs, struct nfsfh *nfsfh, off_t offset,
 /*
  * Async write()
  */
-int nfs_write_async(struct nfs_context *nfs, struct nfsfh *nfsfh, size_t count, char *buf, nfs_cb cb, void *private_data)
+int nfs_write_async(struct nfs_context *nfs, struct nfsfh *nfsfh, uint64_t count, char *buf, nfs_cb cb, void *private_data)
 {
 	return nfs_pwrite_async(nfs, nfsfh, nfsfh->offset, count, buf, cb, private_data);
 }
@@ -1182,7 +1849,7 @@ int nfs_write_async(struct nfs_context *nfs, struct nfsfh *nfsfh, size_t count,
 /*
  * close
  */
- 
+
 int nfs_close_async(struct nfs_context *nfs, struct nfsfh *nfsfh, nfs_cb cb, void *private_data)
 {
 	if (nfsfh->fh.data.data_val != NULL){
@@ -1205,6 +1872,7 @@ int nfs_close_async(struct nfs_context *nfs, struct nfsfh *nfsfh, nfs_cb cb, voi
 int nfs_fstat_async(struct nfs_context *nfs, struct nfsfh *nfsfh, nfs_cb cb, void *private_data)
 {
 	struct nfs_cb_data *data;
+	struct GETATTR3args args;
 
 	data = malloc(sizeof(struct nfs_cb_data));
 	if (data == NULL) {
@@ -1216,7 +1884,10 @@ int nfs_fstat_async(struct nfs_context *nfs, struct nfsfh *nfsfh, nfs_cb cb, voi
 	data->cb           = cb;
 	data->private_data = private_data;
 
-	if (rpc_nfs_getattr_async(nfs->rpc, nfs_stat_1_cb, &nfsfh->fh, data) != 0) {
+	memset(&args, 0, sizeof(GETATTR3args));
+	args.object = nfsfh->fh;
+
+	if (rpc_nfs3_getattr_async(nfs->rpc, nfs_stat_1_cb, &args, data) != 0) {
 		rpc_set_error(nfs->rpc, "RPC error: Failed to send STAT GETATTR call for %s", data->path);
 		data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
 		free_nfs_cb_data(data);
@@ -1230,12 +1901,14 @@ int nfs_fstat_async(struct nfs_context *nfs, struct nfsfh *nfsfh, nfs_cb cb, voi
 /*
  * Async fsync()
  */
-static void nfs_fsync_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
+static void nfs_fsync_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
 {
 	struct nfs_cb_data *data = private_data;
 	struct nfs_context *nfs = data->nfs;
 	COMMIT3res *res;
 
+	assert(rpc->magic == RPC_CONTEXT_MAGIC);
+
 	if (status == RPC_STATUS_ERROR) {
 		data->cb(-EFAULT, nfs, command_data, data->private_data);
 		free_nfs_cb_data(data);
@@ -1262,6 +1935,7 @@ static void nfs_fsync_cb(struct rpc_context *rpc _U_, int status, void *command_
 int nfs_fsync_async(struct nfs_context *nfs, struct nfsfh *nfsfh, nfs_cb cb, void *private_data)
 {
 	struct nfs_cb_data *data;
+	struct COMMIT3args args;
 
 	data = malloc(sizeof(struct nfs_cb_data));
 	if (data == NULL) {
@@ -1273,7 +1947,10 @@ int nfs_fsync_async(struct nfs_context *nfs, struct nfsfh *nfsfh, nfs_cb cb, voi
 	data->cb           = cb;
 	data->private_data = private_data;
 
-	if (rpc_nfs_commit_async(nfs->rpc, nfs_fsync_cb, &nfsfh->fh, data) != 0) {
+	args.file = nfsfh->fh;
+	args.offset = 0;
+	args.count = 0;
+	if (rpc_nfs3_commit_async(nfs->rpc, nfs_fsync_cb, &args, data) != 0) {
 		rpc_set_error(nfs->rpc, "RPC error: Failed to send COMMIT call for %s", data->path);
 		data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
 		free_nfs_cb_data(data);
@@ -1288,12 +1965,14 @@ int nfs_fsync_async(struct nfs_context *nfs, struct nfsfh *nfsfh, nfs_cb cb, voi
 /*
  * Async ftruncate()
  */
-static void nfs_ftruncate_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
+static void nfs_ftruncate_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
 {
 	struct nfs_cb_data *data = private_data;
 	struct nfs_context *nfs = data->nfs;
 	SETATTR3res *res;
 
+	assert(rpc->magic == RPC_CONTEXT_MAGIC);
+
 	if (status == RPC_STATUS_ERROR) {
 		data->cb(-EFAULT, nfs, command_data, data->private_data);
 		free_nfs_cb_data(data);
@@ -1317,7 +1996,7 @@ static void nfs_ftruncate_cb(struct rpc_context *rpc _U_, int status, void *comm
 	free_nfs_cb_data(data);
 }
 
-int nfs_ftruncate_async(struct nfs_context *nfs, struct nfsfh *nfsfh, off_t length, nfs_cb cb, void *private_data)
+int nfs_ftruncate_async(struct nfs_context *nfs, struct nfsfh *nfsfh, uint64_t length, nfs_cb cb, void *private_data)
 {
 	struct nfs_cb_data *data;
 	SETATTR3args args;
@@ -1333,12 +2012,11 @@ int nfs_ftruncate_async(struct nfs_context *nfs, struct nfsfh *nfsfh, off_t leng
 	data->private_data = private_data;
 
 	memset(&args, 0, sizeof(SETATTR3args));
-	args.object.data.data_len = nfsfh->fh.data.data_len;
-	args.object.data.data_val = nfsfh->fh.data.data_val;
+	args.object = nfsfh->fh;
 	args.new_attributes.size.set_it = 1;
 	args.new_attributes.size.set_size3_u.size = length;
 
-	if (rpc_nfs_setattr_async(nfs->rpc, nfs_ftruncate_cb, &args, data) != 0) {
+	if (rpc_nfs3_setattr_async(nfs->rpc, nfs_ftruncate_cb, &args, data) != 0) {
 		rpc_set_error(nfs->rpc, "RPC error: Failed to send SETATTR call for %s", data->path);
 		data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
 		free_nfs_cb_data(data);
@@ -1353,11 +2031,10 @@ int nfs_ftruncate_async(struct nfs_context *nfs, struct nfsfh *nfsfh, off_t leng
  */
 static int nfs_truncate_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
 {
-	off_t offset = data->continue_int;
+	uint64_t offset = data->continue_int;
 	struct nfsfh nfsfh;
 
-	nfsfh.fh.data.data_val = data->fh.data.data_val;
-	nfsfh.fh.data.data_len = data->fh.data.data_len;
+	nfsfh.fh = data->fh;
 
 	if (nfs_ftruncate_async(nfs, &nfsfh, offset, data->cb, data->private_data) != 0) {
 		rpc_set_error(nfs->rpc, "RPC error: Failed to send SETATTR call for %s", data->path);
@@ -1369,9 +2046,9 @@ static int nfs_truncate_continue_internal(struct nfs_context *nfs, struct nfs_cb
 	return 0;
 }
 
-int nfs_truncate_async(struct nfs_context *nfs, const char *path, off_t length, nfs_cb cb, void *private_data)
+int nfs_truncate_async(struct nfs_context *nfs, const char *path, uint64_t length, nfs_cb cb, void *private_data)
 {
-	off_t offset;
+	uint64_t offset;
 
 	offset = length;
 
@@ -1389,13 +2066,15 @@ int nfs_truncate_async(struct nfs_context *nfs, const char *path, off_t length,
 /*
  * Async mkdir()
  */
-static void nfs_mkdir_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
+static void nfs_mkdir_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
 {
 	MKDIR3res *res;
 	struct nfs_cb_data *data = private_data;
 	struct nfs_context *nfs = data->nfs;
 	char *str = data->continue_data;
-	
+
+	assert(rpc->magic == RPC_CONTEXT_MAGIC);
+
 	str = &str[strlen(str) + 1];
 
 	if (status == RPC_STATUS_ERROR) {
@@ -1424,10 +2103,17 @@ static void nfs_mkdir_cb(struct rpc_context *rpc _U_, int status, void *command_
 static int nfs_mkdir_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
 {
 	char *str = data->continue_data;
-	
+	MKDIR3args args;
+
 	str = &str[strlen(str) + 1];
 
-	if (rpc_nfs_mkdir_async(nfs->rpc, nfs_mkdir_cb, &data->fh, str, data) != 0) {
+	memset(&args, 0, sizeof(MKDIR3args));
+	args.where.dir = data->fh;
+	args.where.name = str;
+	args.attributes.mode.set_it = 1;
+	args.attributes.mode.set_mode3_u.mode = 0755;
+
+	if (rpc_nfs3_mkdir_async(nfs->rpc, nfs_mkdir_cb, &args, data) != 0) {
 		rpc_set_error(nfs->rpc, "RPC error: Failed to send MKDIR call for %s", data->path);
 		data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
 		free_nfs_cb_data(data);
@@ -1470,13 +2156,15 @@ int nfs_mkdir_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *
 /*
  * Async rmdir()
  */
-static void nfs_rmdir_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
+static void nfs_rmdir_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
 {
 	RMDIR3res *res;
 	struct nfs_cb_data *data = private_data;
 	struct nfs_context *nfs = data->nfs;
 	char *str = data->continue_data;
-	
+
+	assert(rpc->magic == RPC_CONTEXT_MAGIC);
+
 	str = &str[strlen(str) + 1];
 
 	if (status == RPC_STATUS_ERROR) {
@@ -1505,10 +2193,13 @@ static void nfs_rmdir_cb(struct rpc_context *rpc _U_, int status, void *command_
 static int nfs_rmdir_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
 {
 	char *str = data->continue_data;
-	
+	RMDIR3args args;
+
 	str = &str[strlen(str) + 1];
 
-	if (rpc_nfs_rmdir_async(nfs->rpc, nfs_rmdir_cb, &data->fh, str, data) != 0) {
+	args.object.dir = data->fh;
+	args.object.name = str;
+	if (rpc_nfs3_rmdir_async(nfs->rpc, nfs_rmdir_cb, &args, data) != 0) {
 		rpc_set_error(nfs->rpc, "RPC error: Failed to send RMDIR call for %s", data->path);
 		data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
 		free_nfs_cb_data(data);
@@ -1550,7 +2241,7 @@ int nfs_rmdir_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *
 /*
  * Async creat()
  */
-static void nfs_create_2_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
+static void nfs_create_2_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
 {
 	LOOKUP3res *res;
 	struct nfs_cb_data *data = private_data;
@@ -1558,6 +2249,8 @@ static void nfs_create_2_cb(struct rpc_context *rpc _U_, int status, void *comma
 	struct nfsfh *nfsfh;
 	char *str = data->continue_data;
 
+	assert(rpc->magic == RPC_CONTEXT_MAGIC);
+
 	if (status == RPC_STATUS_ERROR) {
 		data->cb(-EFAULT, nfs, command_data, data->private_data);
 		free_nfs_cb_data(data);
@@ -1587,10 +2280,10 @@ static void nfs_create_2_cb(struct rpc_context *rpc _U_, int status, void *comma
 	}
 	memset(nfsfh, 0, sizeof(struct nfsfh));
 
-	/* steal the filehandle */
-	nfsfh->fh.data.data_len = data->fh.data.data_len;
-	nfsfh->fh.data.data_val = data->fh.data.data_val;
-	data->fh.data.data_val = NULL;
+	/* copy the filehandle */
+	nfsfh->fh.data.data_len = res->LOOKUP3res_u.resok.object.data.data_len;
+	nfsfh->fh.data.data_val = malloc(nfsfh->fh.data.data_len);
+	memcpy(nfsfh->fh.data.data_val, res->LOOKUP3res_u.resok.object.data.data_val, nfsfh->fh.data.data_len);
 
 	data->cb(0, nfs, nfsfh, data->private_data);
 	free_nfs_cb_data(data);
@@ -1598,12 +2291,15 @@ static void nfs_create_2_cb(struct rpc_context *rpc _U_, int status, void *comma
 
 
 
-static void nfs_creat_1_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
+static void nfs_creat_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
 {
 	CREATE3res *res;
 	struct nfs_cb_data *data = private_data;
 	struct nfs_context *nfs = data->nfs;
 	char *str = data->continue_data;
+	LOOKUP3args args;
+
+	assert(rpc->magic == RPC_CONTEXT_MAGIC);
 
 	if (status == RPC_STATUS_ERROR) {
 		data->cb(-EFAULT, nfs, command_data, data->private_data);
@@ -1621,11 +2317,15 @@ static void nfs_creat_1_cb(struct rpc_context *rpc _U_, int status, void *comman
 	if (res->status != NFS3_OK) {
 		rpc_set_error(nfs->rpc, "NFS: CREATE of %s/%s failed with %s(%d)", data->saved_path, str, nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
 		data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
-
+		free_nfs_cb_data(data);
 		return;
 	}
 
-	if (rpc_nfs_lookup_async(nfs->rpc, nfs_create_2_cb, &data->fh, str, data) != 0) {
+	memset(&args, 0, sizeof(LOOKUP3args));
+	args.what.dir = data->fh;
+	args.what.name = str;
+
+	if (rpc_nfs3_lookup_async(nfs->rpc, nfs_create_2_cb, &args, data) != 0) {
 		rpc_set_error(nfs->rpc, "RPC error: Failed to send lookup call for %s/%s", data->saved_path, str);
 		data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
 		free_nfs_cb_data(data);
@@ -1637,10 +2337,18 @@ static void nfs_creat_1_cb(struct rpc_context *rpc _U_, int status, void *comman
 static int nfs_creat_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
 {
 	char *str = data->continue_data;
-	
+	CREATE3args args;
+
 	str = &str[strlen(str) + 1];
 
-	if (rpc_nfs_create_async(nfs->rpc, nfs_creat_1_cb, &data->fh, str, data->continue_int, data) != 0) {
+	memset(&args, 0, sizeof(CREATE3args));
+	args.where.dir = data->fh;
+	args.where.name = str;
+	args.how.mode = UNCHECKED;
+	args.how.createhow3_u.obj_attributes.mode.set_it = 1;
+	args.how.createhow3_u.obj_attributes.mode.set_mode3_u.mode = data->continue_int;
+
+	if (rpc_nfs3_create_async(nfs->rpc, nfs_creat_1_cb, &args, data) != 0) {
 		rpc_set_error(nfs->rpc, "RPC error: Failed to send CREATE call for %s/%s", data->path, str);
 		data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
 		free_nfs_cb_data(data);
@@ -1667,7 +2375,7 @@ int nfs_creat_async(struct nfs_context *nfs, const char *path, int mode, nfs_cb
 	}
 	*ptr = 0;
 
-	/* new_path now points to the parent directory,  and beyond the nul terminateor is the new directory to create */
+	/* new_path now points to the parent directory,  and beyond the nul terminator is the new directory to create */
 	if (nfs_lookuppath_async(nfs, new_path, cb, private_data, nfs_creat_continue_internal, new_path, free, mode) != 0) {
 		rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
 		return -1;
@@ -1682,13 +2390,15 @@ int nfs_creat_async(struct nfs_context *nfs, const char *path, int mode, nfs_cb
 /*
  * Async unlink()
  */
-static void nfs_unlink_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
+static void nfs_unlink_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
 {
 	REMOVE3res *res;
 	struct nfs_cb_data *data = private_data;
 	struct nfs_context *nfs = data->nfs;
 	char *str = data->continue_data;
-	
+
+	assert(rpc->magic == RPC_CONTEXT_MAGIC);
+
 	str = &str[strlen(str) + 1];
 
 	if (status == RPC_STATUS_ERROR) {
@@ -1717,10 +2427,13 @@ static void nfs_unlink_cb(struct rpc_context *rpc _U_, int status, void *command
 static int nfs_unlink_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
 {
 	char *str = data->continue_data;
-	
+	struct REMOVE3args args;
+
 	str = &str[strlen(str) + 1];
 
-	if (rpc_nfs_remove_async(nfs->rpc, nfs_unlink_cb, &data->fh, str, data) != 0) {
+	args.object.dir = data->fh;
+	args.object.name = str;
+	if (rpc_nfs3_remove_async(nfs->rpc, nfs_unlink_cb, &args, data) != 0) {
 		rpc_set_error(nfs->rpc, "RPC error: Failed to send REMOVE call for %s", data->path);
 		data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
 		free_nfs_cb_data(data);
@@ -1757,6 +2470,145 @@ int nfs_unlink_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void
 }
 
 
+/*
+ * Async mknod()
+ */
+struct mknod_cb_data {
+       char *path;
+       int mode;
+       int major;
+       int minor;
+};
+
+static void free_mknod_cb_data(void *ptr)
+{
+	struct mknod_cb_data *data = ptr;
+
+	free(data->path);
+	free(data);
+}
+
+static void nfs_mknod_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
+{
+	MKNOD3res *res;
+	struct nfs_cb_data *data = private_data;
+	struct nfs_context *nfs = data->nfs;
+	char *str = data->continue_data;
+
+	assert(rpc->magic == RPC_CONTEXT_MAGIC);
+
+	str = &str[strlen(str) + 1];
+
+	if (status == RPC_STATUS_ERROR) {
+		data->cb(-EFAULT, nfs, command_data, data->private_data);
+		free_nfs_cb_data(data);
+		return;
+	}
+	if (status == RPC_STATUS_CANCEL) {
+		data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
+		free_nfs_cb_data(data);
+		return;
+	}
+
+	res = command_data;
+	if (res->status != NFS3_OK) {
+		rpc_set_error(nfs->rpc, "NFS: MKNOD of %s/%s failed with %s(%d)", data->saved_path, str, nfsstat3_to_str(res->status), nfsstat3_to_errno(res->status));
+		data->cb(nfsstat3_to_errno(res->status), nfs, rpc_get_error(nfs->rpc), data->private_data);
+		free_nfs_cb_data(data);
+		return;
+	}
+
+	data->cb(0, nfs, NULL, data->private_data);
+	free_nfs_cb_data(data);
+}
+
+static int nfs_mknod_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
+{
+	struct mknod_cb_data *cb_data = data->continue_data;
+	char *str = cb_data->path;
+	MKNOD3args args;
+
+	str = &str[strlen(str) + 1];
+
+	args.where.dir = data->fh;
+	args.where.name = str;
+	switch (cb_data->mode & S_IFMT) {
+	case S_IFCHR:
+		args.what.type = NF3CHR;
+		args.what.mknoddata3_u.chr_device.dev_attributes.mode.set_it = 1;
+		args.what.mknoddata3_u.chr_device.dev_attributes.mode.set_mode3_u.mode = cb_data->mode & (S_IRUSR|S_IWUSR|S_IXUSR|S_IRGRP|S_IWGRP|S_IXGRP|S_IROTH|S_IWOTH|S_IXOTH);
+		args.what.mknoddata3_u.chr_device.spec.specdata1 = cb_data->major;
+		args.what.mknoddata3_u.chr_device.spec.specdata2 = cb_data->minor;
+		break;
+	case S_IFBLK:
+		args.what.type = NF3BLK;
+		args.what.mknoddata3_u.blk_device.dev_attributes.mode.set_it = 1;
+		args.what.mknoddata3_u.blk_device.dev_attributes.mode.set_mode3_u.mode = cb_data->mode & (S_IRUSR|S_IWUSR|S_IXUSR|S_IRGRP|S_IWGRP|S_IXGRP|S_IROTH|S_IWOTH|S_IXOTH);
+		args.what.mknoddata3_u.blk_device.spec.specdata1 = cb_data->major;
+		args.what.mknoddata3_u.blk_device.spec.specdata2 = cb_data->minor;
+	case S_IFSOCK:
+		args.what.type = NF3SOCK;
+		args.what.mknoddata3_u.sock_attributes.mode.set_it = 1;
+		args.what.mknoddata3_u.sock_attributes.mode.set_mode3_u.mode = cb_data->mode & (S_IRUSR|S_IWUSR|S_IXUSR|S_IRGRP|S_IWGRP|S_IXGRP|S_IROTH|S_IWOTH|S_IXOTH);
+		break;
+	case S_IFIFO:
+		args.what.type = NF3FIFO;
+		args.what.mknoddata3_u.pipe_attributes.mode.set_it = 1;
+		args.what.mknoddata3_u.pipe_attributes.mode.set_mode3_u.mode = cb_data->mode & (S_IRUSR|S_IWUSR|S_IXUSR|S_IRGRP|S_IWGRP|S_IXGRP|S_IROTH|S_IWOTH|S_IXOTH);
+		break;
+	default:
+		rpc_set_error(nfs->rpc, "Invalid file type for NFS3/MKNOD call");
+		data->cb(-EINVAL, nfs, rpc_get_error(nfs->rpc), data->private_data);
+		free_nfs_cb_data(data);
+		return -1;
+	}
+
+	if (rpc_nfs3_mknod_async(nfs->rpc, nfs_mknod_cb, &args, data) != 0) {
+		data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
+		free_nfs_cb_data(data);
+		return -1;
+	}
+	return 0;
+}
+
+int nfs_mknod_async(struct nfs_context *nfs, const char *path, int mode, int dev, nfs_cb cb, void *private_data)
+{
+	char *ptr;
+	struct mknod_cb_data *cb_data;
+
+	cb_data = malloc(sizeof(struct mknod_cb_data));
+	if (cb_data == NULL) {
+		rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for cb data");
+		return -1;
+	}
+
+	cb_data->path = strdup(path);
+	if (cb_data->path == NULL) {
+		rpc_set_error(nfs->rpc, "Out of memory, failed to allocate mode buffer for path");
+		free(cb_data);
+		return -1;
+	}
+
+	ptr = strrchr(cb_data->path, '/');
+	if (ptr == NULL) {
+		rpc_set_error(nfs->rpc, "Invalid path %s", path);
+		return -1;
+	}
+	*ptr = 0;
+
+	cb_data->mode = mode;
+	cb_data->major = major(dev);
+	cb_data->minor = minor(dev);
+
+	/* data->path now points to the parent directory,  and beyond the nul terminateor is the new directory to create */
+	if (nfs_lookuppath_async(nfs, cb_data->path, cb, private_data, nfs_mknod_continue_internal, cb_data, free_mknod_cb_data, 0) != 0) {
+		rpc_set_error(nfs->rpc, "Out of memory: failed to start parsing the path components");
+		free_mknod_cb_data(cb_data);
+		return -1;
+	}
+
+	return 0;
+}
 
 /*
  * Async opendir()
@@ -1776,7 +2628,7 @@ struct rdpe_lookup_cb_data {
 };
 
 /* Workaround for servers lacking READDIRPLUS, use READDIR instead and a GETATTR-loop */
-static void nfs_opendir3_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
+static void nfs_opendir3_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
 {
 	LOOKUP3res *res = command_data;
 	struct rdpe_lookup_cb_data *rdpe_lookup_cb_data = private_data;
@@ -1786,6 +2638,8 @@ static void nfs_opendir3_cb(struct rpc_context *rpc _U_, int status, void *comma
 	struct nfs_context *nfs = data->nfs;
 	struct nfsdirent *nfsdirent = rdpe_lookup_cb_data->nfsdirent;
 
+	assert(rpc->magic == RPC_CONTEXT_MAGIC);
+
 	free(rdpe_lookup_cb_data);
 
 	rdpe_cb_data->getattrcount--;
@@ -1813,6 +2667,8 @@ static void nfs_opendir3_cb(struct rpc_context *rpc _U_, int status, void *comma
 			nfsdirent->mtime.tv_usec = attributes->mtime.nseconds/1000;
 			nfsdirent->ctime.tv_sec  = attributes->ctime.seconds;
 			nfsdirent->ctime.tv_usec = attributes->ctime.nseconds/1000;
+			nfsdirent->uid = attributes->uid;
+			nfsdirent->gid = attributes->gid;
 		}
 	}
 
@@ -1830,7 +2686,7 @@ static void nfs_opendir3_cb(struct rpc_context *rpc _U_, int status, void *comma
 	}
 }
 
-static void nfs_opendir2_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
+static void nfs_opendir2_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
 {
 	READDIR3res *res = command_data;
 	struct nfs_cb_data *data = private_data;
@@ -1838,9 +2694,11 @@ static void nfs_opendir2_cb(struct rpc_context *rpc _U_, int status, void *comma
 	struct nfsdir *nfsdir = data->continue_data;
 	struct nfsdirent *nfsdirent;
 	struct entry3 *entry;
-	uint64_t cookie;
+	uint64_t cookie = 0;
 	struct rdpe_cb_data *rdpe_cb_data;
-	
+
+	assert(rpc->magic == RPC_CONTEXT_MAGIC);
+
 	if (status == RPC_STATUS_ERROR) {
 		data->cb(-EFAULT, nfs, command_data, data->private_data);
 		nfs_free_nfsdir(nfsdir);
@@ -1895,7 +2753,14 @@ static void nfs_opendir2_cb(struct rpc_context *rpc _U_, int status, void *comma
 	}
 
 	if (res->READDIR3res_u.resok.reply.eof == 0) {
-	     	if (rpc_nfs_readdir_async(nfs->rpc, nfs_opendir2_cb, &data->fh, cookie, res->READDIR3res_u.resok.cookieverf, 8192, data) != 0) {
+		READDIR3args args;
+
+		args.dir = data->fh;
+		args.cookie = cookie;
+		memcpy(&args.cookieverf, res->READDIR3res_u.resok.cookieverf, sizeof(cookieverf3));
+		args.count = 8192;
+
+	     	if (rpc_nfs3_readdir_async(nfs->rpc, nfs_opendir2_cb, &args, data) != 0) {
 			rpc_set_error(nfs->rpc, "RPC error: Failed to send READDIR call for %s", data->path);
 			data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
 			nfs_free_nfsdir(nfsdir);
@@ -1915,12 +2780,17 @@ static void nfs_opendir2_cb(struct rpc_context *rpc _U_, int status, void *comma
 	rdpe_cb_data->data = data;
 	for (nfsdirent = nfsdir->entries; nfsdirent; nfsdirent = nfsdirent->next) {
 		struct rdpe_lookup_cb_data *rdpe_lookup_cb_data;
+		LOOKUP3args args;
 
 		rdpe_lookup_cb_data = malloc(sizeof(struct rdpe_lookup_cb_data));
 		rdpe_lookup_cb_data->rdpe_cb_data = rdpe_cb_data;
 		rdpe_lookup_cb_data->nfsdirent = nfsdirent;
 
-		if (rpc_nfs_lookup_async(nfs->rpc, nfs_opendir3_cb, &data->fh, nfsdirent->name, rdpe_lookup_cb_data) != 0) {
+		memset(&args, 0, sizeof(LOOKUP3args));
+		args.what.dir = data->fh;
+		args.what.name = nfsdirent->name;
+
+		if (rpc_nfs3_lookup_async(nfs->rpc, nfs_opendir3_cb, &args, rdpe_lookup_cb_data) != 0) {
 			rpc_set_error(nfs->rpc, "RPC error: Failed to send READDIR LOOKUP call");
 
 			/* if we have already commands in flight, we cant just stop, we have to wait for the
@@ -1945,20 +2815,26 @@ static void nfs_opendir2_cb(struct rpc_context *rpc _U_, int status, void *comma
 }
 
 
-static void nfs_opendir_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
+static void nfs_opendir_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
 {
 	READDIRPLUS3res *res = command_data;
 	struct nfs_cb_data *data = private_data;
 	struct nfs_context *nfs = data->nfs;
 	struct nfsdir *nfsdir = data->continue_data;
 	struct entryplus3 *entry;
-	uint64_t cookie;
-	
+	uint64_t cookie = 0;
+
+	assert(rpc->magic == RPC_CONTEXT_MAGIC);
 
 	if (status == RPC_STATUS_ERROR || (status == RPC_STATUS_SUCCESS && res->status == NFS3ERR_NOTSUPP) ){
-		cookieverf3 cv;
+		READDIR3args args;
+
+		args.dir = data->fh;
+		args.cookie = cookie;
+		memset(&args.cookieverf, 0, sizeof(cookieverf3));
+		args.count = 8192;
 
-		if (rpc_nfs_readdir_async(nfs->rpc, nfs_opendir2_cb, &data->fh, 0, (char *)&cv, 8192, data) != 0) {
+		if (rpc_nfs3_readdir_async(nfs->rpc, nfs_opendir2_cb, &args, data) != 0) {
 			rpc_set_error(nfs->rpc, "RPC error: Failed to send READDIR call for %s", data->path);
 			data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
 			nfs_free_nfsdir(nfsdir);
@@ -2002,6 +2878,7 @@ static void nfs_opendir_cb(struct rpc_context *rpc _U_, int status, void *comman
 		nfsdirent->name = strdup(entry->name);
 		if (nfsdirent->name == NULL) {
 			data->cb(-ENOMEM, nfs, "Failed to allocate dirent->name", data->private_data);
+			free(nfsdirent);
 			nfs_free_nfsdir(nfsdir);
 			data->continue_data = NULL;
 			free_nfs_cb_data(data);
@@ -2019,6 +2896,8 @@ static void nfs_opendir_cb(struct rpc_context *rpc _U_, int status, void *comman
 			nfsdirent->mtime.tv_usec = entry->name_attributes.post_op_attr_u.attributes.mtime.nseconds/1000;
 			nfsdirent->ctime.tv_sec  = entry->name_attributes.post_op_attr_u.attributes.ctime.seconds;
 			nfsdirent->ctime.tv_usec = entry->name_attributes.post_op_attr_u.attributes.ctime.nseconds/1000;
+			nfsdirent->uid = entry->name_attributes.post_op_attr_u.attributes.uid;
+			nfsdirent->gid = entry->name_attributes.post_op_attr_u.attributes.gid;
 		}
 
 		nfsdirent->next  = nfsdir->entries;
@@ -2029,7 +2908,15 @@ static void nfs_opendir_cb(struct rpc_context *rpc _U_, int status, void *comman
 	}
 
 	if (res->READDIRPLUS3res_u.resok.reply.eof == 0) {
-	     	if (rpc_nfs_readdirplus_async(nfs->rpc, nfs_opendir_cb, &data->fh, cookie, res->READDIRPLUS3res_u.resok.cookieverf, 8192, data) != 0) {
+		READDIRPLUS3args args;
+
+		args.dir = data->fh;
+		args.cookie = cookie;
+		memcpy(&args.cookieverf, res->READDIRPLUS3res_u.resok.cookieverf, sizeof(cookieverf3));
+		args.dircount = 8192;
+		args.maxcount = 8192;
+
+	     	if (rpc_nfs3_readdirplus_async(nfs->rpc, nfs_opendir_cb, &args, data) != 0) {
 			rpc_set_error(nfs->rpc, "RPC error: Failed to send READDIRPLUS call for %s", data->path);
 			data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
 			nfs_free_nfsdir(nfsdir);
@@ -2050,10 +2937,14 @@ static void nfs_opendir_cb(struct rpc_context *rpc _U_, int status, void *comman
 
 static int nfs_opendir_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
 {
-	cookieverf3 cv;
-
-	memset(cv, 0, sizeof(cookieverf3));
-	if (rpc_nfs_readdirplus_async(nfs->rpc, nfs_opendir_cb, &data->fh, 0, (char *)&cv, 8192, data) != 0) {
+	READDIRPLUS3args args;
+
+	args.dir = data->fh;
+	args.cookie = 0;
+	memset(&args.cookieverf, 0, sizeof(cookieverf3));
+	args.dircount = 8192;
+	args.maxcount = 8192;
+	if (rpc_nfs3_readdirplus_async(nfs->rpc, nfs_opendir_cb, &args, data) != 0) {
 		rpc_set_error(nfs->rpc, "RPC error: Failed to send READDIRPLUS call for %s", data->path);
 		data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
 		free_nfs_cb_data(data);
@@ -2093,15 +2984,24 @@ struct nfsdirent *nfs_readdir(struct nfs_context *nfs _U_, struct nfsdir *nfsdir
 }
 
 
+/*
+ * closedir()
+ */
 void nfs_closedir(struct nfs_context *nfs _U_, struct nfsdir *nfsdir)
 {
 	nfs_free_nfsdir(nfsdir);
 }
 
 
-
-
-
+/*
+ * getcwd()
+ */
+void nfs_getcwd(struct nfs_context *nfs, const char **cwd)
+{
+	if (cwd) {
+		*cwd = nfs->cwd;
+	}
+}
 
 
 /*
@@ -2110,17 +3010,19 @@ void nfs_closedir(struct nfs_context *nfs _U_, struct nfsdir *nfsdir)
 struct lseek_cb_data {
        struct nfs_context *nfs;
        struct nfsfh *nfsfh;
-       off_t offset;
+       uint64_t offset;
        nfs_cb cb;
        void *private_data;
 };
 
-static void nfs_lseek_1_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
+static void nfs_lseek_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
 {
 	GETATTR3res *res;
 	struct lseek_cb_data *data = private_data;
 	struct nfs_context *nfs = data->nfs;
 
+	assert(rpc->magic == RPC_CONTEXT_MAGIC);
+
 	if (status == RPC_STATUS_ERROR) {
 		data->cb(-EFAULT, nfs, command_data, data->private_data);
 		free(data);
@@ -2145,9 +3047,10 @@ static void nfs_lseek_1_cb(struct rpc_context *rpc _U_, int status, void *comman
 	free(data);
 }
 
-int nfs_lseek_async(struct nfs_context *nfs, struct nfsfh *nfsfh, off_t offset, int whence, nfs_cb cb, void *private_data)
+int nfs_lseek_async(struct nfs_context *nfs, struct nfsfh *nfsfh, uint64_t offset, int whence, nfs_cb cb, void *private_data)
 {
 	struct lseek_cb_data *data;
+	struct GETATTR3args args;
 
 	if (whence == SEEK_SET) {
 		nfsfh->offset = offset;
@@ -2172,7 +3075,10 @@ int nfs_lseek_async(struct nfs_context *nfs, struct nfsfh *nfsfh, off_t offset,
 	data->cb           = cb;
 	data->private_data = private_data;
 
-	if (rpc_nfs_getattr_async(nfs->rpc, nfs_lseek_1_cb, &nfsfh->fh, data) != 0) {
+	memset(&args, 0, sizeof(GETATTR3args));
+	args.object = nfsfh->fh;
+
+	if (rpc_nfs3_getattr_async(nfs->rpc, nfs_lseek_1_cb, &args, data) != 0) {
 		rpc_set_error(nfs->rpc, "RPC error: Failed to send LSEEK GETATTR call");
 		free(data);
 		return -1;
@@ -2186,13 +3092,15 @@ int nfs_lseek_async(struct nfs_context *nfs, struct nfsfh *nfsfh, off_t offset,
 /*
  * Async statvfs()
  */
-static void nfs_statvfs_1_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
+static void nfs_statvfs_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
 {
 	FSSTAT3res *res;
 	struct nfs_cb_data *data = private_data;
 	struct nfs_context *nfs = data->nfs;
 	struct statvfs svfs;
 
+	assert(rpc->magic == RPC_CONTEXT_MAGIC);
+
 	if (status == RPC_STATUS_ERROR) {
 		data->cb(-EFAULT, nfs, command_data, data->private_data);
 		free_nfs_cb_data(data);
@@ -2219,10 +3127,12 @@ static void nfs_statvfs_1_cb(struct rpc_context *rpc _U_, int status, void *comm
 	svfs.f_bavail  = res->FSSTAT3res_u.resok.abytes/4096;
 	svfs.f_files   = res->FSSTAT3res_u.resok.tfiles;
 	svfs.f_ffree   = res->FSSTAT3res_u.resok.ffiles;
+#if !defined(ANDROID)
 	svfs.f_favail  = res->FSSTAT3res_u.resok.afiles;
 	svfs.f_fsid    = 0;
 	svfs.f_flag    = 0;
 	svfs.f_namemax = 256;
+#endif
 
 	data->cb(0, nfs, &svfs, data->private_data);
 	free_nfs_cb_data(data);
@@ -2230,7 +3140,10 @@ static void nfs_statvfs_1_cb(struct rpc_context *rpc _U_, int status, void *comm
 
 static int nfs_statvfs_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
 {
-	if (rpc_nfs_fsstat_async(nfs->rpc, nfs_statvfs_1_cb, &data->fh, data) != 0) {
+	FSSTAT3args args;
+
+	args.fsroot = data->fh;
+	if (rpc_nfs3_fsstat_async(nfs->rpc, nfs_statvfs_1_cb, &args, data) != 0) {
 		rpc_set_error(nfs->rpc, "RPC error: Failed to send FSSTAT call for %s", data->path);
 		data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
 		free_nfs_cb_data(data);
@@ -2255,12 +3168,14 @@ int nfs_statvfs_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void
 /*
  * Async readlink()
  */
-static void nfs_readlink_1_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
+static void nfs_readlink_1_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
 {
 	READLINK3res *res;
 	struct nfs_cb_data *data = private_data;
 	struct nfs_context *nfs = data->nfs;
 
+	assert(rpc->magic == RPC_CONTEXT_MAGIC);
+
 	if (status == RPC_STATUS_ERROR) {
 		data->cb(-EFAULT, nfs, command_data, data->private_data);
 		free_nfs_cb_data(data);
@@ -2280,14 +3195,18 @@ static void nfs_readlink_1_cb(struct rpc_context *rpc _U_, int status, void *com
 		return;
 	}
 
-	
+
 	data->cb(0, nfs, res->READLINK3res_u.resok.data, data->private_data);
 	free_nfs_cb_data(data);
 }
 
 static int nfs_readlink_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
 {
-	if (rpc_nfs_readlink_async(nfs->rpc, nfs_readlink_1_cb, &data->fh, data) != 0) {
+	READLINK3args args;
+
+	args.symlink = data->fh;
+
+	if (rpc_nfs3_readlink_async(nfs->rpc, nfs_readlink_1_cb, &args, data) != 0) {
 		rpc_set_error(nfs->rpc, "RPC error: Failed to send READLINK call for %s", data->path);
 		data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
 		free_nfs_cb_data(data);
@@ -2312,12 +3231,14 @@ int nfs_readlink_async(struct nfs_context *nfs, const char *path, nfs_cb cb, voi
 /*
  * Async chmod()
  */
-static void nfs_chmod_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
+static void nfs_chmod_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
 {
 	struct nfs_cb_data *data = private_data;
 	struct nfs_context *nfs = data->nfs;
 	SETATTR3res *res;
 
+	assert(rpc->magic == RPC_CONTEXT_MAGIC);
+
 	if (status == RPC_STATUS_ERROR) {
 		data->cb(-EFAULT, nfs, command_data, data->private_data);
 		free_nfs_cb_data(data);
@@ -2346,12 +3267,11 @@ static int nfs_chmod_continue_internal(struct nfs_context *nfs, struct nfs_cb_da
 	SETATTR3args args;
 
 	memset(&args, 0, sizeof(SETATTR3args));
-	args.object.data.data_len = data->fh.data.data_len;
-	args.object.data.data_val = data->fh.data.data_val;
+	args.object = data->fh;
 	args.new_attributes.mode.set_it = 1;
 	args.new_attributes.mode.set_mode3_u.mode = data->continue_int;
 
-	if (rpc_nfs_setattr_async(nfs->rpc, nfs_chmod_cb, &args, data) != 0) {
+	if (rpc_nfs3_setattr_async(nfs->rpc, nfs_chmod_cb, &args, data) != 0) {
 		rpc_set_error(nfs->rpc, "RPC error: Failed to send SETATTR call for %s", data->path);
 		data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
 		free_nfs_cb_data(data);
@@ -2410,12 +3330,14 @@ int nfs_fchmod_async(struct nfs_context *nfs, struct nfsfh *nfsfh, int mode, nfs
 /*
  * Async chown()
  */
-static void nfs_chown_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
+static void nfs_chown_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
 {
 	struct nfs_cb_data *data = private_data;
 	struct nfs_context *nfs = data->nfs;
 	SETATTR3res *res;
 
+	assert(rpc->magic == RPC_CONTEXT_MAGIC);
+
 	if (status == RPC_STATUS_ERROR) {
 		data->cb(-EFAULT, nfs, command_data, data->private_data);
 		free_nfs_cb_data(data);
@@ -2450,8 +3372,7 @@ static int nfs_chown_continue_internal(struct nfs_context *nfs, struct nfs_cb_da
 	struct nfs_chown_data *chown_data = data->continue_data;
 
 	memset(&args, 0, sizeof(SETATTR3args));
-	args.object.data.data_len = data->fh.data.data_len;
-	args.object.data.data_val = data->fh.data.data_val;
+	args.object = data->fh;
 	if (chown_data->uid != (uid_t)-1) {
 		args.new_attributes.uid.set_it = 1;
 		args.new_attributes.uid.set_uid3_u.uid = chown_data->uid;
@@ -2461,7 +3382,7 @@ static int nfs_chown_continue_internal(struct nfs_context *nfs, struct nfs_cb_da
 		args.new_attributes.gid.set_gid3_u.gid = chown_data->gid;
 	}
 
-	if (rpc_nfs_setattr_async(nfs->rpc, nfs_chown_cb, &args, data) != 0) {
+	if (rpc_nfs3_setattr_async(nfs->rpc, nfs_chown_cb, &args, data) != 0) {
 		rpc_set_error(nfs->rpc, "RPC error: Failed to send SETATTR call for %s", data->path);
 		data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
 		free_nfs_cb_data(data);
@@ -2546,12 +3467,14 @@ int nfs_fchown_async(struct nfs_context *nfs, struct nfsfh *nfsfh, int uid, int
 /*
  * Async utimes()
  */
-static void nfs_utimes_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
+static void nfs_utimes_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
 {
 	struct nfs_cb_data *data = private_data;
 	struct nfs_context *nfs = data->nfs;
 	SETATTR3res *res;
 
+	assert(rpc->magic == RPC_CONTEXT_MAGIC);
+
 	if (status == RPC_STATUS_ERROR) {
 		data->cb(-EFAULT, nfs, command_data, data->private_data);
 		free_nfs_cb_data(data);
@@ -2581,8 +3504,7 @@ static int nfs_utimes_continue_internal(struct nfs_context *nfs, struct nfs_cb_d
 	struct timeval *utimes_data = data->continue_data;
 
 	memset(&args, 0, sizeof(SETATTR3args));
-	args.object.data.data_len = data->fh.data.data_len;
-	args.object.data.data_val = data->fh.data.data_val;
+	args.object = data->fh;
 	if (utimes_data != NULL) {
 		args.new_attributes.atime.set_it = SET_TO_CLIENT_TIME;
 		args.new_attributes.atime.set_atime_u.atime.seconds  = utimes_data[0].tv_sec;
@@ -2595,7 +3517,7 @@ static int nfs_utimes_continue_internal(struct nfs_context *nfs, struct nfs_cb_d
 		args.new_attributes.mtime.set_it = SET_TO_SERVER_TIME;
 	}
 
-	if (rpc_nfs_setattr_async(nfs->rpc, nfs_utimes_cb, &args, data) != 0) {
+	if (rpc_nfs3_setattr_async(nfs->rpc, nfs_utimes_cb, &args, data) != 0) {
 		rpc_set_error(nfs->rpc, "RPC error: Failed to send SETATTR call for %s", data->path);
 		data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
 		free_nfs_cb_data(data);
@@ -2656,19 +3578,18 @@ int nfs_utime_async(struct nfs_context *nfs, const char *path, struct utimbuf *t
 }
 
 
-
-
-
 /*
  * Async access()
  */
-static void nfs_access_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
+static void nfs_access_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
 {
 	ACCESS3res *res;
 	struct nfs_cb_data *data = private_data;
 	struct nfs_context *nfs = data->nfs;
 	unsigned int nfsmode = 0;
 
+	assert(rpc->magic == RPC_CONTEXT_MAGIC);
+
 	if (status == RPC_STATUS_ERROR) {
 		data->cb(-EFAULT, nfs, command_data, data->private_data);
 		free_nfs_cb_data(data);
@@ -2718,6 +3639,7 @@ static void nfs_access_cb(struct rpc_context *rpc _U_, int status, void *command
 static int nfs_access_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
 {
 	int nfsmode = 0;
+	ACCESS3args args;
 
 	if (data->continue_int & R_OK) {
 		nfsmode |= ACCESS3_READ;
@@ -2729,7 +3651,11 @@ static int nfs_access_continue_internal(struct nfs_context *nfs, struct nfs_cb_d
 		nfsmode |= ACCESS3_EXECUTE;
 	}
 
-	if (rpc_nfs_access_async(nfs->rpc, nfs_access_cb, &data->fh, nfsmode, data) != 0) {
+	memset(&args, 0, sizeof(ACCESS3args));
+	args.object = data->fh;
+	args.access = nfsmode;
+
+	if (rpc_nfs3_access_async(nfs->rpc, nfs_access_cb, &args, data) != 0) {
 		rpc_set_error(nfs->rpc, "RPC error: Failed to send OPEN ACCESS call for %s", data->path);
 		data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
 		free_nfs_cb_data(data);
@@ -2775,13 +3701,15 @@ static void free_nfs_symlink_data(void *mem)
 	free(data);
 }
 
-static void nfs_symlink_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
+static void nfs_symlink_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
 {
 	SYMLINK3res *res;
 	struct nfs_cb_data *data = private_data;
 	struct nfs_context *nfs = data->nfs;
 	struct nfs_symlink_data *symlink_data = data->continue_data;
-	
+
+	assert(rpc->magic == RPC_CONTEXT_MAGIC);
+
 	if (status == RPC_STATUS_ERROR) {
 		data->cb(-EFAULT, nfs, command_data, data->private_data);
 		free_nfs_cb_data(data);
@@ -2808,8 +3736,16 @@ static void nfs_symlink_cb(struct rpc_context *rpc _U_, int status, void *comman
 static int nfs_symlink_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
 {
 	struct nfs_symlink_data *symlink_data = data->continue_data;
+	SYMLINK3args args;
 
-	if (rpc_nfs_symlink_async(nfs->rpc, nfs_symlink_cb, &data->fh, symlink_data->newpathobject, symlink_data->oldpath, data) != 0) {
+	memset(&args, 0, sizeof(SYMLINK3args));
+	args.where.dir = data->fh;
+	args.where.name = symlink_data->newpathobject;
+	args.symlink.symlink_attributes.mode.set_it = 1;
+	args.symlink.symlink_attributes.mode.set_mode3_u.mode = S_IRUSR|S_IWUSR|S_IXUSR|S_IRGRP|S_IWGRP|S_IXGRP|S_IROTH|S_IWOTH|S_IXOTH;
+	args.symlink.symlink_data = symlink_data->oldpath;
+
+	if (rpc_nfs3_symlink_async(nfs->rpc, nfs_symlink_cb, &args, data) != 0) {
 		rpc_set_error(nfs->rpc, "RPC error: Failed to send SYMLINK call for %s", data->path);
 		data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
 		free_nfs_cb_data(data);
@@ -2901,13 +3837,15 @@ static void free_nfs_rename_data(void *mem)
 	free(data);
 }
 
-static void nfs_rename_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
+static void nfs_rename_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
 {
 	RENAME3res *res;
 	struct nfs_cb_data *data = private_data;
 	struct nfs_context *nfs = data->nfs;
 	struct nfs_rename_data *rename_data = data->continue_data;
-	
+
+	assert(rpc->magic == RPC_CONTEXT_MAGIC);
+
 	if (status == RPC_STATUS_ERROR) {
 		data->cb(-EFAULT, nfs, command_data, data->private_data);
 		free_nfs_cb_data(data);
@@ -2934,13 +3872,17 @@ static void nfs_rename_cb(struct rpc_context *rpc _U_, int status, void *command
 static int nfs_rename_continue_2_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
 {
 	struct nfs_rename_data *rename_data = data->continue_data;
+	RENAME3args args;
 
 	/* steal the filehandle */
-	rename_data->newdir.data.data_len = data->fh.data.data_len;
-	rename_data->newdir.data.data_val = data->fh.data.data_val;
+	rename_data->newdir = data->fh;
 	data->fh.data.data_val = NULL;
 
-	if (rpc_nfs_rename_async(nfs->rpc, nfs_rename_cb, &rename_data->olddir, rename_data->oldobject, &rename_data->newdir, rename_data->newobject, data) != 0) {
+	args.from.dir = rename_data->olddir;
+	args.from.name = rename_data->oldobject;
+	args.to.dir = rename_data->newdir;
+	args.to.name = rename_data->newobject;
+	if (rpc_nfs3_rename_async(nfs->rpc, nfs_rename_cb, &args, data) != 0) {
 		rpc_set_error(nfs->rpc, "RPC error: Failed to send RENAME call for %s", data->path);
 		data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
 		free_nfs_cb_data(data);
@@ -2955,8 +3897,7 @@ static int nfs_rename_continue_1_internal(struct nfs_context *nfs, struct nfs_cb
 	struct nfs_rename_data *rename_data = data->continue_data;
 
 	/* steal the filehandle */
-	rename_data->olddir.data.data_len = data->fh.data.data_len;
-	rename_data->olddir.data.data_val = data->fh.data.data_val;
+	rename_data->olddir = data->fh;
 	data->fh.data.data_val = NULL;
 
 	if (nfs_lookuppath_async(nfs, rename_data->newpath, data->cb, data->private_data, nfs_rename_continue_2_internal, rename_data, free_nfs_rename_data, 0) != 0) {
@@ -3057,13 +3998,15 @@ static void free_nfs_link_data(void *mem)
 	free(data);
 }
 
-static void nfs_link_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
+static void nfs_link_cb(struct rpc_context *rpc, int status, void *command_data, void *private_data)
 {
 	LINK3res *res;
 	struct nfs_cb_data *data = private_data;
 	struct nfs_context *nfs = data->nfs;
 	struct nfs_link_data *link_data = data->continue_data;
-	
+
+	assert(rpc->magic == RPC_CONTEXT_MAGIC);
+
 	if (status == RPC_STATUS_ERROR) {
 		data->cb(-EFAULT, nfs, command_data, data->private_data);
 		free_nfs_cb_data(data);
@@ -3090,13 +4033,17 @@ static void nfs_link_cb(struct rpc_context *rpc _U_, int status, void *command_d
 static int nfs_link_continue_2_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
 {
 	struct nfs_link_data *link_data = data->continue_data;
+	LINK3args args;
 
 	/* steal the filehandle */
-	link_data->newdir.data.data_len = data->fh.data.data_len;
-	link_data->newdir.data.data_val = data->fh.data.data_val;
+	link_data->newdir = data->fh;
 	data->fh.data.data_val = NULL;
 
-	if (rpc_nfs_link_async(nfs->rpc, nfs_link_cb, &link_data->oldfh, &link_data->newdir, link_data->newobject, data) != 0) {
+	memset(&args, 0, sizeof(LINK3args));
+	args.file = link_data->oldfh;
+	args.link.dir = link_data->newdir;
+	args.link.name = link_data->newobject;
+	if (rpc_nfs3_link_async(nfs->rpc, nfs_link_cb, &args, data) != 0) {
 		rpc_set_error(nfs->rpc, "RPC error: Failed to send LINK call for %s", data->path);
 		data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
 		free_nfs_cb_data(data);
@@ -3111,8 +4058,7 @@ static int nfs_link_continue_1_internal(struct nfs_context *nfs, struct nfs_cb_d
 	struct nfs_link_data *link_data = data->continue_data;
 
 	/* steal the filehandle */
-	link_data->oldfh.data.data_len = data->fh.data.data_len;
-	link_data->oldfh.data.data_val = data->fh.data.data_val;
+	link_data->oldfh = data->fh;
 	data->fh.data.data_val = NULL;
 
 	if (nfs_lookuppath_async(nfs, link_data->newpath, data->cb, data->private_data, nfs_link_continue_2_internal, link_data, free_nfs_link_data, 0) != 0) {
@@ -3174,7 +4120,7 @@ int nfs_link_async(struct nfs_context *nfs, const char *oldpath, const char *new
 
 
 //qqq replace later with lseek()
-off_t nfs_get_current_offset(struct nfsfh *nfsfh)
+uint64_t nfs_get_current_offset(struct nfsfh *nfsfh)
 {
 	return nfsfh->offset;
 }
@@ -3184,7 +4130,7 @@ off_t nfs_get_current_offset(struct nfsfh *nfsfh)
 /*
  * Get the maximum supported READ3 size by the server
  */
-size_t nfs_get_readmax(struct nfs_context *nfs)
+uint64_t nfs_get_readmax(struct nfs_context *nfs)
 {
 	return nfs->readmax;
 }
@@ -3192,13 +4138,21 @@ size_t nfs_get_readmax(struct nfs_context *nfs)
 /*
  * Get the maximum supported WRITE3 size by the server
  */
-size_t nfs_get_writemax(struct nfs_context *nfs)
+uint64_t nfs_get_writemax(struct nfs_context *nfs)
 {
-	/* Some XDR libraries can not marshall PDUs bigger than this */
-        if (nfs->writemax < 32768) {
-		return nfs->writemax;
-	}
-	return 32768;
+	return nfs->writemax;
+}
+
+void nfs_set_tcp_syncnt(struct nfs_context *nfs, int v) {
+	rpc_set_tcp_syncnt(nfs->rpc, v);
+}
+
+void nfs_set_uid(struct nfs_context *nfs, int uid) {
+	rpc_set_uid(nfs->rpc, uid);
+}
+
+void nfs_set_gid(struct nfs_context *nfs, int gid) {
+	rpc_set_gid(nfs->rpc, gid);
 }
 
 void nfs_set_error(struct nfs_context *nfs, char *error_string, ...)
@@ -3213,7 +4167,7 @@ void nfs_set_error(struct nfs_context *nfs, char *error_string, ...)
 		free(nfs->rpc->error_string);
 	}
 	nfs->rpc->error_string = str;
-    va_end(ap);
+	va_end(ap);
 }
 
 
@@ -3238,7 +4192,9 @@ static void mount_export_5_cb(struct rpc_context *rpc, int status, void *command
 {
 	struct mount_cb_data *data = private_data;
 
-	if (status == RPC_STATUS_ERROR) {	
+	assert(rpc->magic == RPC_CONTEXT_MAGIC);
+
+	if (status == RPC_STATUS_ERROR) {
 		data->cb(rpc, -EFAULT, command_data, data->private_data);
 		free_mount_cb_data(data);
 		return;
@@ -3260,7 +4216,12 @@ static void mount_export_4_cb(struct rpc_context *rpc, int status, void *command
 {
 	struct mount_cb_data *data = private_data;
 
-	if (status == RPC_STATUS_ERROR) {	
+	assert(rpc->magic == RPC_CONTEXT_MAGIC);
+
+	/* Dont want any more callbacks even if the socket is closed */
+	rpc->connect_cb = NULL;
+
+	if (status == RPC_STATUS_ERROR) {
 		data->cb(rpc, -EFAULT, command_data, data->private_data);
 		free_mount_cb_data(data);
 		return;
@@ -3271,7 +4232,7 @@ static void mount_export_4_cb(struct rpc_context *rpc, int status, void *command
 		return;
 	}
 
-	if (rpc_mount_export_async(rpc, mount_export_5_cb, data) != 0) {
+	if (rpc_mount3_export_async(rpc, mount_export_5_cb, data) != 0) {
 		data->cb(rpc, -ENOMEM, command_data, data->private_data);
 		free_mount_cb_data(data);
 		return;
@@ -3283,7 +4244,9 @@ static void mount_export_3_cb(struct rpc_context *rpc, int status, void *command
 	struct mount_cb_data *data = private_data;
 	uint32_t mount_port;
 
-	if (status == RPC_STATUS_ERROR) {	
+	assert(rpc->magic == RPC_CONTEXT_MAGIC);
+
+	if (status == RPC_STATUS_ERROR) {
 		data->cb(rpc, -EFAULT, command_data, data->private_data);
 		free_mount_cb_data(data);
 		return;
@@ -3314,6 +4277,8 @@ static void mount_export_2_cb(struct rpc_context *rpc, int status, void *command
 {
 	struct mount_cb_data *data = private_data;
 
+	assert(rpc->magic == RPC_CONTEXT_MAGIC);
+
 	if (status == RPC_STATUS_ERROR) {
 		data->cb(rpc, -EFAULT, command_data, data->private_data);
 		free_mount_cb_data(data);
@@ -3325,7 +4290,7 @@ static void mount_export_2_cb(struct rpc_context *rpc, int status, void *command
 		return;
 	}
 
-	if (rpc_pmap_getport_async(rpc, MOUNT_PROGRAM, MOUNT_V3, mount_export_3_cb, private_data) != 0) {
+	if (rpc_pmap_getport_async(rpc, MOUNT_PROGRAM, MOUNT_V3, IPPROTO_TCP, mount_export_3_cb, private_data) != 0) {
 		data->cb(rpc, -ENOMEM, command_data, data->private_data);
 		free_mount_cb_data(data);
 		return;
@@ -3336,6 +4301,11 @@ static void mount_export_1_cb(struct rpc_context *rpc, int status, void *command
 {
 	struct mount_cb_data *data = private_data;
 
+	assert(rpc->magic == RPC_CONTEXT_MAGIC);
+
+	/* Dont want any more callbacks even if the socket is closed */
+	rpc->connect_cb = NULL;
+
 	if (status == RPC_STATUS_ERROR) {
 		data->cb(rpc, -EFAULT, command_data, data->private_data);
 		free_mount_cb_data(data);
@@ -3358,6 +4328,8 @@ int mount_getexports_async(struct rpc_context *rpc, const char *server, rpc_cb c
 {
 	struct mount_cb_data *data;
 
+	assert(rpc->magic == RPC_CONTEXT_MAGIC);
+
 	data = malloc(sizeof(struct mount_cb_data));
 	if (data == NULL) {
 		return -1;
@@ -3369,7 +4341,7 @@ int mount_getexports_async(struct rpc_context *rpc, const char *server, rpc_cb c
 	if (data->server == NULL) {
 		free_mount_cb_data(data);
 		return -1;
-	}	
+	}
 	if (rpc_connect_async(rpc, data->server, 111, mount_export_1_cb, data) != 0) {
 		free_mount_cb_data(data);
 		return -1;
@@ -3380,6 +4352,7 @@ int mount_getexports_async(struct rpc_context *rpc, const char *server, rpc_cb c
 
 struct rpc_context *nfs_get_rpc_context(struct nfs_context *nfs)
 {
+	assert(nfs->rpc->magic == RPC_CONTEXT_MAGIC);
 	return nfs->rpc;
 }
 
@@ -3391,3 +4364,10 @@ const char *nfs_get_export(struct nfs_context *nfs) {
 	return nfs->export;
 }
 
+const struct nfs_fh3 *nfs_get_rootfh(struct nfs_context *nfs) {
+      return &nfs->rootfh;
+}
+
+struct nfs_fh3 *nfs_get_fh(struct nfsfh *nfsfh) {
+       return &nfsfh->fh;
+}