--- /dev/null
+/*
+ Copyright (C) by Ronnie Sahlberg <ronniesahlberg@gmail.com> 2010
+
+ 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/>.
+*/
+/*
+ * High level api to nfs filesystems
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <strings.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/statvfs.h>
+#include <utime.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include "libnfs.h"
+#include "libnfs-raw.h"
+#include "libnfs-raw-mount.h"
+#include "libnfs-raw-nfs.h"
+
+struct nfsfh {
+ struct nfs_fh3 fh;
+ int is_sync;
+ off_t offset;
+};
+
+struct nfsdir {
+ struct nfsdirent *entries;
+ struct nfsdirent *current;
+};
+
+void nfs_free_nfsdir(struct nfsdir *nfsdir)
+{
+ while (nfsdir->entries) {
+ struct nfsdirent *dirent = nfsdir->entries->next;
+ if (nfsdir->entries->name != NULL) {
+ free(nfsdir->entries->name);
+ }
+ free(nfsdir->entries);
+ nfsdir->entries = dirent;
+ }
+ free(nfsdir);
+}
+
+struct nfs_context {
+ struct rpc_context *rpc;
+ char *server;
+ char *export;
+ struct nfs_fh3 rootfh;
+ int acl_support;
+};
+
+struct nfs_cb_data;
+typedef int (*continue_func)(struct nfs_context *nfs, struct nfs_cb_data *data);
+
+struct nfs_cb_data {
+ struct nfs_context *nfs;
+ struct nfsfh *nfsfh;
+ char *saved_path, *path;
+
+ nfs_cb cb;
+ void *private_data;
+
+ continue_func continue_cb;
+ void *continue_data;
+ void (*free_continue_data)(void *);
+ int continue_int;
+
+ struct nfs_fh3 fh;
+};
+
+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)
+{
+ return rpc_set_auth(nfs->rpc, auth);
+}
+
+int nfs_get_fd(struct nfs_context *nfs)
+{
+ return rpc_get_fd(nfs->rpc);
+}
+
+int nfs_which_events(struct nfs_context *nfs)
+{
+ return rpc_which_events(nfs->rpc);
+}
+
+int nfs_service(struct nfs_context *nfs, int revents)
+{
+ return rpc_service(nfs->rpc, revents);
+}
+
+char *nfs_get_error(struct nfs_context *nfs)
+{
+ return rpc_get_error(nfs->rpc);
+};
+
+struct nfs_context *nfs_init_context(void)
+{
+ struct nfs_context *nfs;
+
+ nfs = malloc(sizeof(struct nfs_context));
+ if (nfs == NULL) {
+ printf("Failed to allocate nfs context\n");
+ return NULL;
+ }
+ nfs->rpc = rpc_init_context();
+ if (nfs->rpc == NULL) {
+ printf("Failed to allocate rpc sub-context\n");
+ free(nfs);
+ return NULL;
+ }
+
+ return nfs;
+}
+
+void nfs_destroy_context(struct nfs_context *nfs)
+{
+ rpc_destroy_context(nfs->rpc);
+ nfs->rpc = NULL;
+
+ if (nfs->server) {
+ free(nfs->server);
+ nfs->server = NULL;
+ }
+
+ if (nfs->export) {
+ free(nfs->export);
+ nfs->export = NULL;
+ }
+
+ if (nfs->rootfh.data.data_val != NULL) {
+ free(nfs->rootfh.data.data_val);
+ nfs->rootfh.data.data_val = NULL;
+ }
+
+ free(nfs);
+}
+
+void free_nfs_cb_data(struct nfs_cb_data *data)
+{
+ if (data->saved_path != NULL) {
+ free(data->saved_path);
+ data->saved_path = NULL;
+ }
+
+ if (data->continue_data != NULL) {
+ data->free_continue_data(data->continue_data);
+ data->continue_data = NULL;
+ }
+
+ if (data->fh.data.data_val != NULL) {
+ free(data->fh.data.data_val);
+ data->fh.data.data_val = NULL;
+ }
+
+ free(data);
+}
+
+
+
+
+
+static void nfs_mount_10_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
+{
+ struct nfs_cb_data *data = private_data;
+ struct nfs_context *nfs = data->nfs;
+
+ 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;
+ }
+
+ data->cb(0, nfs, NULL, data->private_data);
+ free_nfs_cb_data(data);
+}
+
+static void nfs_mount_9_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;
+
+ nfs->acl_support = 1;
+ if (status == RPC_STATUS_ERROR) {
+ nfs->acl_support = 0;
+ }
+ if (status == RPC_STATUS_CANCEL) {
+ data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
+ free_nfs_cb_data(data);
+ return;
+ }
+
+ if (rpc_nfs_getattr_async(rpc, nfs_mount_10_cb, &nfs->rootfh, data) != 0) {
+ data->cb(-ENOMEM, nfs, command_data, data->private_data);
+ free_nfs_cb_data(data);
+ return;
+ }
+}
+
+static void nfs_mount_8_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;
+
+ 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;
+ }
+
+ if (rpc_nfsacl_null_async(rpc, nfs_mount_9_cb, data) != 0) {
+ data->cb(-ENOMEM, nfs, command_data, data->private_data);
+ free_nfs_cb_data(data);
+ return;
+ }
+}
+
+static void nfs_mount_7_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;
+
+ 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;
+ }
+
+ if (rpc_nfs_null_async(rpc, nfs_mount_8_cb, data) != 0) {
+ data->cb(-ENOMEM, nfs, command_data, data->private_data);
+ free_nfs_cb_data(data);
+ return;
+ }
+}
+
+
+static void nfs_mount_6_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;
+ mountres3 *res;
+
+ 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->fhs_status != MNT3_OK) {
+ rpc_set_error(rpc, "RPC error: Mount failed with error %s(%d) %s(%d)", mountstat3_to_str(res->fhs_status), res->fhs_status, strerror(-mountstat3_to_errno(res->fhs_status)), -mountstat3_to_errno(res->fhs_status));
+ data->cb(mountstat3_to_errno(res->fhs_status), nfs, rpc_get_error(rpc), data->private_data);
+ free_nfs_cb_data(data);
+ return;
+ }
+
+ nfs->rootfh.data.data_len = res->mountres3_u.mountinfo.fhandle.fhandle3_len;
+ nfs->rootfh.data.data_val = malloc(nfs->rootfh.data.data_len);
+ if (nfs->rootfh.data.data_val == NULL) {
+ rpc_set_error(rpc, "Out of memory. Could not allocate memory to store root filehandle");
+ data->cb(-ENOMEM, nfs, rpc_get_error(rpc), data->private_data);
+ free_nfs_cb_data(data);
+ return;
+ }
+ memcpy(nfs->rootfh.data.data_val, res->mountres3_u.mountinfo.fhandle.fhandle3_val, nfs->rootfh.data.data_len);
+
+ rpc_disconnect(rpc, "normal disconnect");
+ if (rpc_connect_async(rpc, nfs->server, 2049, 1, nfs_mount_7_cb, data) != 0) {
+ data->cb(-ENOMEM, nfs, command_data, data->private_data);
+ free_nfs_cb_data(data);
+ return;
+ }
+}
+
+
+static void nfs_mount_5_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;
+
+ 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;
+ }
+
+ if (rpc_mount_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;
+ }
+}
+
+static void nfs_mount_4_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;
+
+ 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;
+ }
+
+ if (rpc_mount_null_async(rpc, nfs_mount_5_cb, data) != 0) {
+ data->cb(-ENOMEM, nfs, command_data, data->private_data);
+ free_nfs_cb_data(data);
+ return;
+ }
+}
+
+static void nfs_mount_3_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;
+ uint32_t mount_port;
+
+ 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;
+ }
+
+ mount_port = *(uint32_t *)command_data;
+ if (mount_port == 0) {
+ rpc_set_error(rpc, "RPC error. Mount program is not available on %s", nfs->server);
+ data->cb(-ENOENT, nfs, command_data, data->private_data);
+ free_nfs_cb_data(data);
+ return;
+ }
+
+ rpc_disconnect(rpc, "normal disconnect");
+ if (rpc_connect_async(rpc, nfs->server, mount_port, 1, nfs_mount_4_cb, data) != 0) {
+ data->cb(-ENOMEM, nfs, command_data, data->private_data);
+ free_nfs_cb_data(data);
+ return;
+ }
+}
+
+
+static void nfs_mount_2_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;
+
+ 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;
+ }
+
+ if (rpc_pmap_getport_async(rpc, MOUNT_PROGRAM, MOUNT_V3, nfs_mount_3_cb, private_data) != 0) {
+ data->cb(-ENOMEM, nfs, command_data, data->private_data);
+ free_nfs_cb_data(data);
+ return;
+ }
+}
+
+static void nfs_mount_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;
+
+ 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;
+ }
+
+ if (rpc_pmap_null_async(rpc, nfs_mount_2_cb, data) != 0) {
+ data->cb(-ENOMEM, nfs, command_data, data->private_data);
+ free_nfs_cb_data(data);
+ return;
+ }
+}
+
+/*
+ * Async call for mounting an nfs share and geting the root filehandle
+ */
+int nfs_mount_async(struct nfs_context *nfs, const char *server, const char *export, nfs_cb cb, void *private_data)
+{
+ struct nfs_cb_data *data;
+
+ data = malloc(sizeof(struct nfs_cb_data));
+ if (data == NULL) {
+ rpc_set_error(nfs->rpc, "out of memory");
+ printf("failed to allocate memory for nfs mount data\n");
+ return -1;
+ }
+ bzero(data, sizeof(struct nfs_cb_data));
+ nfs->server = strdup(server);
+ nfs->export = strdup(export);
+ data->nfs = nfs;
+ data->cb = cb;
+ data->private_data = private_data;
+
+ if (rpc_connect_async(nfs->rpc, server, 111, 0, nfs_mount_1_cb, data) != 0) {
+ printf("Failed to start connection\n");
+ free_nfs_cb_data(data);
+ return -4;
+ }
+
+ return 0;
+}
+
+
+
+/*
+ * 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)
+{
+ struct nfs_cb_data *data = private_data;
+ struct nfs_context *nfs = data->nfs;
+ LOOKUP3res *res;
+
+ 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: Lookup of %s failed with %s(%d)", data->saved_path, 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 (nfs_lookup_path_async_internal(nfs, data, &res->LOOKUP3res_u.resok.object) != 0) {
+ rpc_set_error(nfs->rpc, "Failed to create lookup pdu");
+ data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
+ free_nfs_cb_data(data);
+ return;
+ }
+}
+
+static int nfs_lookup_path_async_internal(struct nfs_context *nfs, struct nfs_cb_data *data, struct nfs_fh3 *fh)
+{
+ char *path, *str;
+
+ while (*data->path == '/') {
+ data->path++;
+ }
+
+ path = data->path;
+ str = index(path, '/');
+ if (str != NULL) {
+ *str = 0;
+ data->path = str+1;
+ } else {
+ while (*data->path != 0) {
+ data->path++;
+ }
+ }
+
+ if (*path == 0) {
+ data->fh.data.data_len = fh->data.data_len;
+ data->fh.data.data_val = malloc(data->fh.data.data_len);
+ if (data->fh.data.data_val == NULL) {
+ rpc_set_error(nfs->rpc, "Out of memory: Failed to allocate fh for %s", data->path);
+ data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
+ free_nfs_cb_data(data);
+ return -1;
+ }
+ memcpy(data->fh.data.data_val, fh->data.data_val, data->fh.data.data_len);
+ data->continue_cb(nfs, data);
+ return 0;
+ }
+
+ if (rpc_nfs_lookup_async(nfs->rpc, nfs_lookup_path_1_cb, fh, path, 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;
+ }
+ 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] != '/') {
+ rpc_set_error(nfs->rpc, "Pathname is not absulute %s", path);
+ return -1;
+ }
+
+ 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");
+ printf("failed to allocate memory for nfs cb data\n");
+ free_nfs_cb_data(data);
+ return -2;
+ }
+ bzero(data, sizeof(struct nfs_cb_data));
+ data->nfs = nfs;
+ data->cb = cb;
+ data->continue_cb = continue_cb;
+ data->continue_data = continue_data;
+ data->free_continue_data = free_continue_data;
+ data->continue_int = continue_int;
+ data->private_data = private_data;
+ data->saved_path = strdup(path);
+ if (data->saved_path == NULL) {
+ rpc_set_error(nfs->rpc, "out of memory: failed to copy path string");
+ printf("failed to allocate memory for path string\n");
+ free_nfs_cb_data(data);
+ return -2;
+ }
+ data->path = data->saved_path;
+
+ if (nfs_lookup_path_async_internal(nfs, data, &nfs->rootfh) != 0) {
+ printf("failed to lookup path\n");
+ /* return 0 here since the callback will be invoked if there is a failure */
+ return 0;
+ }
+ return 0;
+}
+
+
+
+
+
+/*
+ * Async stat()
+ */
+static void nfs_stat_1_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
+{
+ GETATTR3res *res;
+ struct nfs_cb_data *data = private_data;
+ struct nfs_context *nfs = data->nfs;
+ struct stat st;
+
+ 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: GETATTR of %s failed with %s(%d)", data->saved_path, 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;
+ }
+
+ st.st_dev = -1;
+ st.st_ino = res->GETATTR3res_u.resok.obj_attributes.fileid;
+ st.st_mode = res->GETATTR3res_u.resok.obj_attributes.mode;
+ 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;
+ st.st_rdev = 0;
+ st.st_size = res->GETATTR3res_u.resok.obj_attributes.size;
+ st.st_blksize = 4096;
+ st.st_blocks = res->GETATTR3res_u.resok.obj_attributes.size / 4096;
+ 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;
+
+ data->cb(0, nfs, &st, data->private_data);
+ free_nfs_cb_data(data);
+}
+
+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) {
+ 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);
+ return -1;
+ }
+ return 0;
+}
+
+int nfs_stat_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
+{
+ if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_stat_continue_internal, NULL, NULL, 0) != 0) {
+ printf("Out of memory: failed to start parsing the path components\n");
+ return -1;
+ }
+
+ return 0;
+}
+
+
+
+
+
+/*
+ * Async open()
+ */
+static void nfs_open_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
+{
+ ACCESS3res *res;
+ struct nfs_cb_data *data = private_data;
+ struct nfs_context *nfs = data->nfs;
+ struct nfsfh *nfsfh;
+ unsigned int nfsmode = 0;
+
+ 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: ACCESS of %s failed with %s(%d)", data->saved_path, 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 (data->continue_int & O_WRONLY) {
+ nfsmode |= ACCESS3_MODIFY;
+ }
+ if (data->continue_int & O_RDWR) {
+ nfsmode |= ACCESS3_READ|ACCESS3_MODIFY;
+ }
+ if (!(data->continue_int & (O_WRONLY|O_RDWR))) {
+ nfsmode |= ACCESS3_READ;
+ }
+
+
+ if (res->ACCESS3res_u.resok.access != nfsmode) {
+ rpc_set_error(nfs->rpc, "NFS: ACCESS denied. Required access %c%c%c. Allowed access %c%c%c",
+ nfsmode&ACCESS3_READ?'r':'-',
+ nfsmode&ACCESS3_MODIFY?'w':'-',
+ nfsmode&ACCESS3_EXECUTE?'x':'-',
+ res->ACCESS3res_u.resok.access&ACCESS3_READ?'r':'-',
+ res->ACCESS3res_u.resok.access&ACCESS3_MODIFY?'w':'-',
+ res->ACCESS3res_u.resok.access&ACCESS3_EXECUTE?'x':'-');
+ data->cb(-EACCES, 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;
+ }
+ bzero(nfsfh, sizeof(struct nfsfh));
+
+ if (data->continue_int & O_SYNC) {
+ nfsfh->is_sync = 1;
+ }
+
+ /* 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;
+
+ data->cb(0, nfs, nfsfh, data->private_data);
+ free_nfs_cb_data(data);
+}
+
+static int nfs_open_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
+{
+ int nfsmode = 0;
+
+ if (data->continue_int & O_WRONLY) {
+ nfsmode |= ACCESS3_MODIFY;
+ }
+ if (data->continue_int & O_RDWR) {
+ nfsmode |= ACCESS3_READ|ACCESS3_MODIFY;
+ }
+ if (!(data->continue_int & (O_WRONLY|O_RDWR))) {
+ 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);
+ 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)
+{
+ if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_open_continue_internal, NULL, NULL, mode) != 0) {
+ printf("Out of memory: failed to start parsing the path components\n");
+ return -2;
+ }
+
+ return 0;
+}
+
+
+
+
+
+/*
+ * Async pread()
+ */
+static void nfs_pread_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
+{
+ struct nfs_cb_data *data = private_data;
+ struct nfs_context *nfs = data->nfs;
+ READ3res *res;
+
+ 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: Read 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;
+ }
+
+ data->nfsfh->offset += res->READ3res_u.resok.count;
+ data->cb(res->READ3res_u.resok.count, nfs, res->READ3res_u.resok.data.data_val, data->private_data);
+ free_nfs_cb_data(data);
+}
+
+int nfs_pread_async(struct nfs_context *nfs, struct nfsfh *nfsfh, off_t offset, size_t count, nfs_cb cb, void *private_data)
+{
+ struct nfs_cb_data *data;
+
+ 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");
+ printf("failed to allocate memory for nfs cb data\n");
+ free_nfs_cb_data(data);
+ return -1;
+ }
+ bzero(data, sizeof(struct nfs_cb_data));
+ data->nfs = nfs;
+ data->cb = cb;
+ data->private_data = private_data;
+ data->nfsfh = nfsfh;
+
+ nfsfh->offset = offset;
+ if (rpc_nfs_read_async(nfs->rpc, nfs_pread_cb, &nfsfh->fh, offset, count, 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);
+ return -1;
+ }
+ return 0;
+}
+
+/*
+ * Async read()
+ */
+int nfs_read_async(struct nfs_context *nfs, struct nfsfh *nfsfh, size_t count, nfs_cb cb, void *private_data)
+{
+ return nfs_pread_async(nfs, nfsfh, nfsfh->offset, count, cb, private_data);
+}
+
+
+
+/*
+ * Async pwrite()
+ */
+static void nfs_pwrite_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
+{
+ struct nfs_cb_data *data = private_data;
+ struct nfs_context *nfs = data->nfs;
+ WRITE3res *res;
+
+ 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: Write 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;
+ }
+
+ data->nfsfh->offset += res->WRITE3res_u.resok.count;
+ data->cb(res->WRITE3res_u.resok.count, nfs, NULL, data->private_data);
+ free_nfs_cb_data(data);
+}
+
+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)
+{
+ struct nfs_cb_data *data;
+
+ 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");
+ printf("failed to allocate memory for nfs cb data\n");
+ free_nfs_cb_data(data);
+ return -1;
+ }
+ bzero(data, sizeof(struct nfs_cb_data));
+ data->nfs = nfs;
+ data->cb = cb;
+ data->private_data = private_data;
+ data->nfsfh = nfsfh;
+
+ nfsfh->offset = offset;
+ if (rpc_nfs_write_async(nfs->rpc, nfs_pwrite_cb, &nfsfh->fh, buf, offset, count, nfsfh->is_sync?FILE_SYNC:UNSTABLE, 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);
+ return -1;
+ }
+ return 0;
+}
+
+/*
+ * Async write()
+ */
+int nfs_write_async(struct nfs_context *nfs, struct nfsfh *nfsfh, size_t count, char *buf, nfs_cb cb, void *private_data)
+{
+ return nfs_pwrite_async(nfs, nfsfh, nfsfh->offset, count, buf, cb, private_data);
+}
+
+
+
+
+/*
+ * 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){
+ free(nfsfh->fh.data.data_val);
+ nfsfh->fh.data.data_val = NULL;
+ }
+ free(nfsfh);
+
+ cb(0, nfs, NULL, private_data);
+ return 0;
+};
+
+
+
+
+
+/*
+ * Async fstat()
+ */
+int nfs_fstat_async(struct nfs_context *nfs, struct nfsfh *nfsfh, nfs_cb cb, void *private_data)
+{
+ struct nfs_cb_data *data;
+
+ 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");
+ printf("failed to allocate memory for nfs cb data\n");
+ free_nfs_cb_data(data);
+ return -1;
+ }
+ bzero(data, sizeof(struct nfs_cb_data));
+ data->nfs = nfs;
+ data->cb = cb;
+ data->private_data = private_data;
+
+ if (rpc_nfs_getattr_async(nfs->rpc, nfs_stat_1_cb, &nfsfh->fh, 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);
+ return -1;
+ }
+ return 0;
+}
+
+
+
+/*
+ * Async fsync()
+ */
+static void nfs_fsync_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
+{
+ struct nfs_cb_data *data = private_data;
+ struct nfs_context *nfs = data->nfs;
+ COMMIT3res *res;
+
+ 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: Commit 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;
+ }
+
+ data->cb(0, nfs, NULL, data->private_data);
+ free_nfs_cb_data(data);
+}
+
+int nfs_fsync_async(struct nfs_context *nfs, struct nfsfh *nfsfh, nfs_cb cb, void *private_data)
+{
+ struct nfs_cb_data *data;
+
+ 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");
+ printf("failed to allocate memory for nfs cb data\n");
+ free_nfs_cb_data(data);
+ return -1;
+ }
+ bzero(data, sizeof(struct nfs_cb_data));
+ data->nfs = nfs;
+ data->cb = cb;
+ data->private_data = private_data;
+
+ if (rpc_nfs_commit_async(nfs->rpc, nfs_fsync_cb, &nfsfh->fh, 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);
+ return -1;
+ }
+ return 0;
+}
+
+
+
+
+/*
+ * Async ftruncate()
+ */
+static void nfs_ftruncate_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
+{
+ struct nfs_cb_data *data = private_data;
+ struct nfs_context *nfs = data->nfs;
+ SETATTR3res *res;
+
+ 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;
+ }
+
+ data->cb(0, nfs, NULL, data->private_data);
+ 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)
+{
+ struct nfs_cb_data *data;
+ SETATTR3args args;
+
+ 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");
+ printf("failed to allocate memory for nfs cb data\n");
+ free_nfs_cb_data(data);
+ return -1;
+ }
+ bzero(data, sizeof(struct nfs_cb_data));
+ data->nfs = nfs;
+ data->cb = cb;
+ data->private_data = private_data;
+
+ bzero(&args, sizeof(SETATTR3args));
+ args.object.data.data_len = nfsfh->fh.data.data_len;
+ args.object.data.data_val = nfsfh->fh.data.data_val;
+ 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) {
+ 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 -1;
+ }
+ return 0;
+}
+
+
+/*
+ * Async truncate()
+ */
+static int nfs_truncate_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
+{
+ off_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;
+
+ 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);
+ data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
+ free_nfs_cb_data(data);
+ return -1;
+ }
+ free_nfs_cb_data(data);
+ return 0;
+}
+
+int nfs_truncate_async(struct nfs_context *nfs, const char *path, off_t length, nfs_cb cb, void *private_data)
+{
+ off_t offset;
+
+ offset = length;
+
+ if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_truncate_continue_internal, NULL, NULL, offset) != 0) {
+ printf("Out of memory: failed to start parsing the path components\n");
+ return -2;
+ }
+
+ return 0;
+}
+
+
+
+
+/*
+ * Async mkdir()
+ */
+static void nfs_mkdir_cb(struct rpc_context *rpc _U_, 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;
+
+ 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: MKDIR 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_mkdir_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
+{
+ char *str = data->continue_data;
+
+ str = &str[strlen(str) + 1];
+
+ if (rpc_nfs_mkdir_async(nfs->rpc, nfs_mkdir_cb, &data->fh, str, 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);
+ return -1;
+ }
+ return 0;
+}
+
+int nfs_mkdir_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
+{
+ char *new_path;
+ char *ptr;
+
+ new_path = strdup(path);
+ if (new_path == NULL) {
+ printf("Out of memory, failed to allocate mode buffer for path\n");
+ return -1;
+ }
+
+ ptr = rindex(new_path, '/');
+ if (ptr == NULL) {
+ printf("Invalid path %s\n", path);
+ return -2;
+ }
+ *ptr = 0;
+
+ /* new_path now points to the parent directory, and beyond the nul terminateor is the new directory to create */
+ if (nfs_lookuppath_async(nfs, new_path, cb, private_data, nfs_mkdir_continue_internal, new_path, free, 0) != 0) {
+ printf("Out of memory: failed to start parsing the path components\n");
+ return -3;
+ }
+
+ return 0;
+}
+
+
+
+
+
+/*
+ * Async rmdir()
+ */
+static void nfs_rmdir_cb(struct rpc_context *rpc _U_, 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;
+
+ 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: RMDIR 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_rmdir_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
+{
+ char *str = data->continue_data;
+
+ str = &str[strlen(str) + 1];
+
+ if (rpc_nfs_rmdir_async(nfs->rpc, nfs_rmdir_cb, &data->fh, str, 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);
+ return -1;
+ }
+ return 0;
+}
+
+int nfs_rmdir_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
+{
+ char *new_path;
+ char *ptr;
+
+ new_path = strdup(path);
+ if (new_path == NULL) {
+ printf("Out of memory, failed to allocate mode buffer for path\n");
+ return -1;
+ }
+
+ ptr = rindex(new_path, '/');
+ if (ptr == NULL) {
+ printf("Invalid path %s\n", path);
+ return -2;
+ }
+ *ptr = 0;
+
+ /* new_path now points to the parent directory, and beyond the nul terminateor is the new directory to create */
+ if (nfs_lookuppath_async(nfs, new_path, cb, private_data, nfs_rmdir_continue_internal, new_path, free, 0) != 0) {
+ printf("Out of memory: failed to start parsing the path components\n");
+ return -3;
+ }
+
+ return 0;
+}
+
+
+
+
+/*
+ * Async creat()
+ */
+static void nfs_create_2_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
+{
+ LOOKUP3res *res;
+ struct nfs_cb_data *data = private_data;
+ struct nfs_context *nfs = data->nfs;
+ struct nfsfh *nfsfh;
+ char *str = data->continue_data;
+
+ 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;
+ }
+
+ str = &str[strlen(str) + 1];
+ res = command_data;
+ 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);
+
+ 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;
+ }
+ bzero(nfsfh, 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;
+
+ data->cb(0, nfs, nfsfh, data->private_data);
+ free_nfs_cb_data(data);
+}
+
+
+
+static void nfs_creat_1_cb(struct rpc_context *rpc _U_, 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;
+
+ 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;
+ }
+
+ str = &str[strlen(str) + 1];
+ res = command_data;
+ 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);
+
+ return;
+ }
+
+ if (rpc_nfs_lookup_async(nfs->rpc, nfs_create_2_cb, &data->fh, str, 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);
+ return;
+ }
+ return;
+}
+
+static int nfs_creat_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
+{
+ char *str = data->continue_data;
+
+ str = &str[strlen(str) + 1];
+
+ if (rpc_nfs_create_async(nfs->rpc, nfs_creat_1_cb, &data->fh, str, data->continue_int, 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);
+ return -1;
+ }
+ return 0;
+}
+
+int nfs_creat_async(struct nfs_context *nfs, const char *path, int mode, nfs_cb cb, void *private_data)
+{
+ char *new_path;
+ char *ptr;
+
+ new_path = strdup(path);
+ if (new_path == NULL) {
+ printf("Out of memory, failed to allocate mode buffer for path\n");
+ return -1;
+ }
+
+ ptr = rindex(new_path, '/');
+ if (ptr == NULL) {
+ printf("Invalid path %s\n", path);
+ return -2;
+ }
+ *ptr = 0;
+
+ /* new_path now points to the parent directory, and beyond the nul terminateor 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) {
+ printf("Out of memory: failed to start parsing the path components\n");
+ return -3;
+ }
+
+ return 0;
+}
+
+
+
+
+/*
+ * Async unlink()
+ */
+static void nfs_unlink_cb(struct rpc_context *rpc _U_, 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;
+
+ 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: REMOVE 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_unlink_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
+{
+ char *str = data->continue_data;
+
+ str = &str[strlen(str) + 1];
+
+ if (rpc_nfs_remove_async(nfs->rpc, nfs_unlink_cb, &data->fh, str, 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);
+ return -1;
+ }
+ return 0;
+}
+
+int nfs_unlink_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
+{
+ char *new_path;
+ char *ptr;
+
+ new_path = strdup(path);
+ if (new_path == NULL) {
+ printf("Out of memory, failed to allocate mode buffer for path\n");
+ return -1;
+ }
+
+ ptr = rindex(new_path, '/');
+ if (ptr == NULL) {
+ printf("Invalid path %s\n", path);
+ return -2;
+ }
+ *ptr = 0;
+
+ /* new_path now points to the parent directory, and beyond the nul terminateor is the new directory to create */
+ if (nfs_lookuppath_async(nfs, new_path, cb, private_data, nfs_unlink_continue_internal, new_path, free, 0) != 0) {
+ printf("Out of memory: failed to start parsing the path components\n");
+ return -3;
+ }
+
+ return 0;
+}
+
+
+
+
+
+/*
+ * Async opendir()
+ */
+static void nfs_opendir_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
+{
+ READDIR3res *res;
+ struct nfs_cb_data *data = private_data;
+ struct nfs_context *nfs = data->nfs;
+ struct nfsdir *nfsdir = data->continue_data;;
+ struct entry3 *entry;
+ uint64_t cookie;
+
+ if (status == RPC_STATUS_ERROR) {
+ data->cb(-EFAULT, nfs, command_data, data->private_data);
+ nfs_free_nfsdir(nfsdir);
+ data->continue_data = NULL;
+ free_nfs_cb_data(data);
+ return;
+ }
+ if (status == RPC_STATUS_CANCEL) {
+ data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
+ nfs_free_nfsdir(nfsdir);
+ data->continue_data = NULL;
+ free_nfs_cb_data(data);
+ return;
+ }
+
+ res = command_data;
+ if (res->status != NFS3_OK) {
+ rpc_set_error(nfs->rpc, "NFS: READDIR of %s failed with %s(%d)", data->saved_path, 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);
+ nfs_free_nfsdir(nfsdir);
+ data->continue_data = NULL;
+ free_nfs_cb_data(data);
+ return;
+ }
+
+ entry =res->READDIR3res_u.resok.reply.entries;
+ while (entry != NULL) {
+ struct nfsdirent *nfsdirent;
+
+ nfsdirent = malloc(sizeof(struct nfsdirent));
+ if (nfsdirent == NULL) {
+ data->cb(-ENOMEM, nfs, "Failed to allocate dirent", data->private_data);
+ nfs_free_nfsdir(nfsdir);
+ data->continue_data = NULL;
+ free_nfs_cb_data(data);
+ return;
+ }
+ bzero(nfsdirent, sizeof(struct nfsdirent));
+ nfsdirent->name = strdup(entry->name);
+ if (nfsdirent->name == NULL) {
+ data->cb(-ENOMEM, nfs, "Failed to allocate dirent->name", data->private_data);
+ nfs_free_nfsdir(nfsdir);
+ data->continue_data = NULL;
+ free_nfs_cb_data(data);
+ return;
+ }
+ nfsdirent->inode = entry->fileid;
+ nfsdirent->next = nfsdir->entries;
+ nfsdir->entries = nfsdirent;
+
+ cookie = entry->cookie;
+ entry = entry->nextentry;
+ }
+
+ if (res->READDIR3res_u.resok.reply.eof == 0) {
+ if (rpc_nfs_readdir_async(nfs->rpc, nfs_opendir_cb, &data->fh, cookie, res->READDIR3res_u.resok.cookieverf, 20000, 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);
+ data->continue_data = NULL;
+ free_nfs_cb_data(data);
+ return;
+ }
+ return;
+ }
+
+ /* steal the dirhandle */
+ data->continue_data = NULL;
+ nfsdir->current = nfsdir->entries;
+
+ data->cb(0, nfs, nfsdir, data->private_data);
+ free_nfs_cb_data(data);
+}
+
+static int nfs_opendir_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
+{
+ cookieverf3 cv;
+
+ bzero(cv, sizeof(cookieverf3));
+ if (rpc_nfs_readdir_async(nfs->rpc, nfs_opendir_cb, &data->fh, 0, (char *)&cv, 20000, 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);
+ free_nfs_cb_data(data);
+ return -1;
+ }
+ return 0;
+}
+
+int nfs_opendir_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
+{
+ struct nfsdir *nfsdir;
+
+ nfsdir = malloc(sizeof(struct nfsdir));
+ if (nfsdir == NULL) {
+ printf("failed to allocate buffer for nfsdir\n");
+ return -1;
+ }
+ bzero(nfsdir, sizeof(struct nfsdir));
+
+ if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_opendir_continue_internal, nfsdir, free, 0) != 0) {
+ printf("Out of memory: failed to start parsing the path components\n");
+ return -2;
+ }
+
+ return 0;
+}
+
+
+struct nfsdirent *nfs_readdir(struct nfs_context *nfs _U_, struct nfsdir *nfsdir)
+{
+ struct nfsdirent *nfsdirent = nfsdir->current;
+
+ if (nfsdir->current != NULL) {
+ nfsdir->current = nfsdir->current->next;
+ }
+ return nfsdirent;
+}
+
+
+void nfs_closedir(struct nfs_context *nfs _U_, struct nfsdir *nfsdir)
+{
+ nfs_free_nfsdir(nfsdir);
+}
+
+
+
+
+
+
+
+/*
+ * Async lseek()
+ */
+struct lseek_cb_data {
+ struct nfs_context *nfs;
+ struct nfsfh *nfsfh;
+ off_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)
+{
+ GETATTR3res *res;
+ struct lseek_cb_data *data = private_data;
+ struct nfs_context *nfs = data->nfs;
+
+ if (status == RPC_STATUS_ERROR) {
+ data->cb(-EFAULT, nfs, command_data, data->private_data);
+ free(data);
+ return;
+ }
+ if (status == RPC_STATUS_CANCEL) {
+ data->cb(-EINTR, nfs, "Command was cancelled", data->private_data);
+ free(data);
+ return;
+ }
+
+ res = command_data;
+ if (res->status != NFS3_OK) {
+ rpc_set_error(nfs->rpc, "NFS: GETATTR 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(data);
+ return;
+ }
+
+ data->nfsfh->offset = data->offset + res->GETATTR3res_u.resok.obj_attributes.size;
+ data->cb(0, nfs, &data->nfsfh->offset, data->private_data);
+ free(data);
+}
+
+int nfs_lseek_async(struct nfs_context *nfs, struct nfsfh *nfsfh, off_t offset, int whence, nfs_cb cb, void *private_data)
+{
+ struct lseek_cb_data *data;
+
+ if (whence == SEEK_SET) {
+ nfsfh->offset = offset;
+ cb(0, nfs, &nfsfh->offset, private_data);
+ return 0;
+ }
+ if (whence == SEEK_CUR) {
+ nfsfh->offset += offset;
+ cb(0, nfs, &nfsfh->offset, private_data);
+ return 0;
+ }
+
+ data = malloc(sizeof(struct lseek_cb_data));
+ if (data == NULL) {
+ rpc_set_error(nfs->rpc, "Out Of Memory: Failed to malloc lseek cb data");
+ return -1;
+ }
+
+ data->nfs = nfs;
+ data->nfsfh = nfsfh;
+ data->offset = offset;
+ data->cb = cb;
+ data->private_data = private_data;
+
+ if (rpc_nfs_getattr_async(nfs->rpc, nfs_lseek_1_cb, &nfsfh->fh, data) != 0) {
+ rpc_set_error(nfs->rpc, "RPC error: Failed to send LSEEK GETATTR call");
+ free(data);
+ return -2;
+ }
+ return 0;
+}
+
+
+
+
+/*
+ * Async statvfs()
+ */
+static void nfs_statvfs_1_cb(struct rpc_context *rpc _U_, 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;
+
+ 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: FSSTAT of %s failed with %s(%d)", data->saved_path, 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;
+ }
+
+ svfs.f_bsize = 4096;
+ svfs.f_frsize = 4096;
+ svfs.f_blocks = res->FSSTAT3res_u.resok.tbytes/4096;
+ svfs.f_bfree = res->FSSTAT3res_u.resok.fbytes/4096;
+ 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;
+ svfs.f_favail = res->FSSTAT3res_u.resok.afiles;
+ svfs.f_fsid = 0;
+ svfs.f_flag = 0;
+ svfs.f_namemax = 256;
+
+ data->cb(0, nfs, &svfs, data->private_data);
+ free_nfs_cb_data(data);
+}
+
+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) {
+ 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);
+ return -1;
+ }
+ return 0;
+}
+
+int nfs_statvfs_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
+{
+ if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_statvfs_continue_internal, NULL, NULL, 0) != 0) {
+ printf("Out of memory: failed to start parsing the path components\n");
+ return -1;
+ }
+
+ return 0;
+}
+
+
+
+
+/*
+ * Async readlink()
+ */
+static void nfs_readlink_1_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
+{
+ READLINK3res *res;
+ struct nfs_cb_data *data = private_data;
+ struct nfs_context *nfs = data->nfs;
+
+ 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: READLINK of %s failed with %s(%d)", data->saved_path, 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, 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) {
+ 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);
+ return -1;
+ }
+ return 0;
+}
+
+int nfs_readlink_async(struct nfs_context *nfs, const char *path, nfs_cb cb, void *private_data)
+{
+ if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_readlink_continue_internal, NULL, NULL, 0) != 0) {
+ printf("Out of memory: failed to start parsing the path components\n");
+ return -1;
+ }
+
+ return 0;
+}
+
+
+
+
+/*
+ * Async chmod()
+ */
+static void nfs_chmod_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
+{
+ struct nfs_cb_data *data = private_data;
+ struct nfs_context *nfs = data->nfs;
+ SETATTR3res *res;
+
+ 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;
+ }
+
+ data->cb(0, nfs, NULL, data->private_data);
+ free_nfs_cb_data(data);
+}
+
+static int nfs_chmod_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
+{
+ SETATTR3args args;
+
+ bzero(&args, sizeof(SETATTR3args));
+ args.object.data.data_len = data->fh.data.data_len;
+ args.object.data.data_val = data->fh.data.data_val;
+ 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) {
+ 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 -1;
+ }
+ return 0;
+}
+
+
+int nfs_chmod_async(struct nfs_context *nfs, const char *path, int mode, nfs_cb cb, void *private_data)
+{
+ if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_chmod_continue_internal, NULL, NULL, mode) != 0) {
+ printf("Out of memory: failed to start parsing the path components\n");
+ return -1;
+ }
+
+ return 0;
+}
+
+/*
+ * Async fchmod()
+ */
+int nfs_fchmod_async(struct nfs_context *nfs, struct nfsfh *nfsfh, int mode, nfs_cb cb, void *private_data)
+{
+ struct nfs_cb_data *data;
+
+ data = malloc(sizeof(struct nfs_cb_data));
+ if (data == NULL) {
+ rpc_set_error(nfs->rpc, "out of memory");
+ printf("failed to allocate memory for nfs mount data\n");
+ return -1;
+ }
+ bzero(data, sizeof(struct nfs_cb_data));
+ data->nfs = nfs;
+ data->cb = cb;
+ data->private_data = private_data;
+ data->continue_int = mode;
+ data->fh.data.data_len = nfsfh->fh.data.data_len;
+ data->fh.data.data_val = malloc(data->fh.data.data_len);
+ if (data->fh.data.data_val == NULL) {
+ rpc_set_error(nfs->rpc, "Out of memory: Failed to allocate fh");
+ free_nfs_cb_data(data);
+ return -1;
+ }
+ memcpy(data->fh.data.data_val, nfsfh->fh.data.data_val, data->fh.data.data_len);
+
+ if (nfs_chmod_continue_internal(nfs, data) != 0) {
+ free_nfs_cb_data(data);
+ return -1;
+ }
+
+ return 0;
+}
+
+
+
+/*
+ * Async chown()
+ */
+static void nfs_chown_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
+{
+ struct nfs_cb_data *data = private_data;
+ struct nfs_context *nfs = data->nfs;
+ SETATTR3res *res;
+
+ 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;
+ }
+
+ data->cb(0, nfs, NULL, data->private_data);
+ free_nfs_cb_data(data);
+}
+
+struct nfs_chown_data {
+ uid_t uid;
+ gid_t gid;
+};
+
+static int nfs_chown_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
+{
+ SETATTR3args args;
+ struct nfs_chown_data *chown_data = data->continue_data;
+
+ bzero(&args, sizeof(SETATTR3args));
+ args.object.data.data_len = data->fh.data.data_len;
+ args.object.data.data_val = data->fh.data.data_val;
+ 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;
+ }
+ if (chown_data->gid != (gid_t)-1) {
+ args.new_attributes.gid.set_it = 1;
+ args.new_attributes.gid.set_gid3_u.gid = chown_data->gid;
+ }
+
+ if (rpc_nfs_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);
+ return -1;
+ }
+ return 0;
+}
+
+
+int nfs_chown_async(struct nfs_context *nfs, const char *path, int uid, int gid, nfs_cb cb, void *private_data)
+{
+ struct nfs_chown_data *chown_data;
+
+ chown_data = malloc(sizeof(struct nfs_chown_data));
+ if (chown_data == NULL) {
+ printf("Failed to allocate memory for chown data structure\n");
+ return -1;
+ }
+
+ chown_data->uid = uid;
+ chown_data->gid = gid;
+
+ if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_chown_continue_internal, chown_data, free, 0) != 0) {
+ printf("Out of memory: failed to start parsing the path components\n");
+ return -1;
+ }
+
+ return 0;
+}
+
+
+/*
+ * Async fchown()
+ */
+int nfs_fchown_async(struct nfs_context *nfs, struct nfsfh *nfsfh, int uid, int gid, nfs_cb cb, void *private_data)
+{
+ struct nfs_cb_data *data;
+ struct nfs_chown_data *chown_data;
+
+ chown_data = malloc(sizeof(struct nfs_chown_data));
+ if (chown_data == NULL) {
+ printf("Failed to allocate memory for chown data structure\n");
+ return -1;
+ }
+
+ chown_data->uid = uid;
+ chown_data->gid = gid;
+
+
+ data = malloc(sizeof(struct nfs_cb_data));
+ if (data == NULL) {
+ rpc_set_error(nfs->rpc, "out of memory");
+ printf("failed to allocate memory for fchown data\n");
+ return -1;
+ }
+ bzero(data, sizeof(struct nfs_cb_data));
+ data->nfs = nfs;
+ data->cb = cb;
+ data->private_data = private_data;
+ data->continue_data = chown_data;
+ data->fh.data.data_len = nfsfh->fh.data.data_len;
+ data->fh.data.data_val = malloc(data->fh.data.data_len);
+ if (data->fh.data.data_val == NULL) {
+ rpc_set_error(nfs->rpc, "Out of memory: Failed to allocate fh");
+ free_nfs_cb_data(data);
+ return -1;
+ }
+ memcpy(data->fh.data.data_val, nfsfh->fh.data.data_val, data->fh.data.data_len);
+
+
+ if (nfs_chown_continue_internal(nfs, data) != 0) {
+ free_nfs_cb_data(data);
+ return -1;
+ }
+
+ return 0;
+}
+
+
+
+
+
+/*
+ * Async utimes()
+ */
+static void nfs_utimes_cb(struct rpc_context *rpc _U_, int status, void *command_data, void *private_data)
+{
+ struct nfs_cb_data *data = private_data;
+ struct nfs_context *nfs = data->nfs;
+ SETATTR3res *res;
+
+ 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;
+ }
+
+ data->cb(0, nfs, NULL, data->private_data);
+ free_nfs_cb_data(data);
+}
+
+static int nfs_utimes_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
+{
+ SETATTR3args args;
+ struct timeval *utimes_data = data->continue_data;
+
+ bzero(&args, sizeof(SETATTR3args));
+ args.object.data.data_len = data->fh.data.data_len;
+ args.object.data.data_val = data->fh.data.data_val;
+ 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;
+ args.new_attributes.atime.set_atime_u.atime.nseconds = utimes_data[0].tv_usec * 1000;
+ args.new_attributes.mtime.set_it = SET_TO_CLIENT_TIME;
+ args.new_attributes.mtime.set_mtime_u.mtime.seconds = utimes_data[1].tv_sec;
+ args.new_attributes.mtime.set_mtime_u.mtime.nseconds = utimes_data[1].tv_usec * 1000;
+ } else {
+ args.new_attributes.atime.set_it = SET_TO_SERVER_TIME;
+ args.new_attributes.mtime.set_it = SET_TO_SERVER_TIME;
+ }
+
+ if (rpc_nfs_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);
+ return -1;
+ }
+ return 0;
+}
+
+
+int nfs_utimes_async(struct nfs_context *nfs, const char *path, struct timeval *times, nfs_cb cb, void *private_data)
+{
+ struct timeval *new_times = NULL;
+
+ if (times != NULL) {
+ new_times = malloc(sizeof(struct timeval)*2);
+ if (new_times == NULL) {
+ printf("Failed to allocate memory for timeval structure\n");
+ return -1;
+ }
+
+ memcpy(new_times, times, sizeof(struct timeval)*2);
+ }
+
+ if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_utimes_continue_internal, new_times, free, 0) != 0) {
+ printf("Out of memory: failed to start parsing the path components\n");
+ return -1;
+ }
+
+ return 0;
+}
+
+/*
+ * Async utime()
+ */
+int nfs_utime_async(struct nfs_context *nfs, const char *path, struct utimbuf *times, nfs_cb cb, void *private_data)
+{
+ struct timeval *new_times = NULL;
+
+ if (times != NULL) {
+ new_times = malloc(sizeof(struct timeval)*2);
+ if (new_times == NULL) {
+ printf("Failed to allocate memory for timeval structure\n");
+ return -1;
+ }
+
+ new_times[0].tv_sec = times->actime;
+ new_times[0].tv_usec = 0;
+ new_times[1].tv_sec = times->modtime;
+ new_times[1].tv_usec = 0;
+ }
+
+ if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_utimes_continue_internal, new_times, free, 0) != 0) {
+ printf("Out of memory: failed to start parsing the path components\n");
+ return -1;
+ }
+
+ return 0;
+}
+
+
+
+
+
+/*
+ * Async access()
+ */
+static void nfs_access_cb(struct rpc_context *rpc _U_, 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;
+
+ 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: ACCESS of %s failed with %s(%d)", data->saved_path, 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 (data->continue_int & R_OK) {
+ nfsmode |= ACCESS3_READ;
+ }
+ if (data->continue_int & W_OK) {
+ nfsmode |= ACCESS3_MODIFY;
+ }
+ if (data->continue_int & X_OK) {
+ nfsmode |= ACCESS3_EXECUTE;
+ }
+
+ if (res->ACCESS3res_u.resok.access != nfsmode) {
+ rpc_set_error(nfs->rpc, "NFS: ACCESS denied. Required access %c%c%c. Allowed access %c%c%c",
+ nfsmode&ACCESS3_READ?'r':'-',
+ nfsmode&ACCESS3_MODIFY?'w':'-',
+ nfsmode&ACCESS3_EXECUTE?'x':'-',
+ res->ACCESS3res_u.resok.access&ACCESS3_READ?'r':'-',
+ res->ACCESS3res_u.resok.access&ACCESS3_MODIFY?'w':'-',
+ res->ACCESS3res_u.resok.access&ACCESS3_EXECUTE?'x':'-');
+ data->cb(-EACCES, 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_access_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
+{
+ int nfsmode = 0;
+
+ if (data->continue_int & R_OK) {
+ nfsmode |= ACCESS3_READ;
+ }
+ if (data->continue_int & W_OK) {
+ nfsmode |= ACCESS3_MODIFY;
+ }
+ if (data->continue_int & X_OK) {
+ nfsmode |= ACCESS3_EXECUTE;
+ }
+
+ if (rpc_nfs_access_async(nfs->rpc, nfs_access_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);
+ free_nfs_cb_data(data);
+ return -1;
+ }
+ return 0;
+}
+
+int nfs_access_async(struct nfs_context *nfs, const char *path, int mode, nfs_cb cb, void *private_data)
+{
+ if (nfs_lookuppath_async(nfs, path, cb, private_data, nfs_access_continue_internal, NULL, NULL, mode) != 0) {
+ printf("Out of memory: failed to start parsing the path components\n");
+ return -2;
+ }
+
+ return 0;
+}
+
+
+
+/*
+ * Async symlink()
+ */
+struct nfs_symlink_data {
+ char *oldpath;
+ char *newpathparent;
+ char *newpathobject;
+};
+
+static void free_nfs_symlink_data(void *mem)
+{
+ struct nfs_symlink_data *data = mem;
+
+ if (data->oldpath != NULL) {
+ free(data->oldpath);
+ }
+ if (data->newpathparent != NULL) {
+ free(data->newpathparent);
+ }
+ if (data->newpathobject != NULL) {
+ free(data->newpathobject);
+ }
+ free(data);
+}
+
+static void nfs_symlink_cb(struct rpc_context *rpc _U_, 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;
+
+ 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: SYMLINK %s/%s -> %s failed with %s(%d)", symlink_data->newpathparent, symlink_data->newpathobject, symlink_data->oldpath, 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_symlink_continue_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
+{
+ struct nfs_symlink_data *symlink_data = data->continue_data;
+
+ if (rpc_nfs_symlink_async(nfs->rpc, nfs_symlink_cb, &data->fh, symlink_data->newpathobject, symlink_data->oldpath, 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);
+ return -1;
+ }
+ return 0;
+}
+
+int nfs_symlink_async(struct nfs_context *nfs, const char *oldpath, const char *newpath, nfs_cb cb, void *private_data)
+{
+ char *ptr;
+ struct nfs_symlink_data *symlink_data;
+
+ symlink_data = malloc(sizeof(struct nfs_symlink_data));
+ if (symlink_data == NULL) {
+ printf("Out of memory, failed to allocate buffer for symlink data\n");
+ return -1;
+ }
+ bzero(symlink_data, sizeof(struct nfs_symlink_data));
+
+ symlink_data->oldpath = strdup(oldpath);
+ if (symlink_data->oldpath == NULL) {
+ printf("Out of memory, failed to allocate buffer for oldpath\n");
+ free_nfs_symlink_data(symlink_data);
+ return -2;
+ }
+
+ symlink_data->newpathparent = strdup(newpath);
+ if (symlink_data->newpathparent == NULL) {
+ printf("Out of memory, failed to allocate mode buffer for new path\n");
+ free_nfs_symlink_data(symlink_data);
+ return -3;
+ }
+
+ ptr = rindex(symlink_data->newpathparent, '/');
+ if (ptr == NULL) {
+ printf("Invalid path %s\n", oldpath);
+ free_nfs_symlink_data(symlink_data);
+ return -4;
+ }
+ *ptr = 0;
+ ptr++;
+
+ symlink_data->newpathobject = strdup(ptr);
+ if (symlink_data->newpathobject == NULL) {
+ printf("Out of memory, failed to allocate mode buffer for new path\n");
+ free_nfs_symlink_data(symlink_data);
+ return -5;
+ }
+
+ if (nfs_lookuppath_async(nfs, symlink_data->newpathparent, cb, private_data, nfs_symlink_continue_internal, symlink_data, free_nfs_symlink_data, 0) != 0) {
+ printf("Out of memory: failed to start parsing the path components\n");
+ return -6;
+ }
+
+ return 0;
+}
+
+
+
+/*
+ * Async rename()
+ */
+struct nfs_rename_data {
+ char *oldpath;
+ char *oldobject;
+ struct nfs_fh3 olddir;
+ char *newpath;
+ char *newobject;
+ struct nfs_fh3 newdir;
+};
+
+static void free_nfs_rename_data(void *mem)
+{
+ struct nfs_rename_data *data = mem;
+
+ if (data->oldpath != NULL) {
+ free(data->oldpath);
+ }
+ if (data->olddir.data.data_val != NULL) {
+ free(data->olddir.data.data_val);
+ }
+ if (data->newpath != NULL) {
+ free(data->newpath);
+ }
+ if (data->newdir.data.data_val != NULL) {
+ free(data->newdir.data.data_val);
+ }
+ free(data);
+}
+
+static void nfs_rename_cb(struct rpc_context *rpc _U_, 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;
+
+ 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: RENAME %s/%s -> %s/%s failed with %s(%d)", rename_data->oldpath, rename_data->oldobject, rename_data->newpath, rename_data->newobject, 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_rename_continue_2_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
+{
+ struct nfs_rename_data *rename_data = data->continue_data;
+
+ /* 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;
+ 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) {
+ 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);
+ return -1;
+ }
+ return 0;
+}
+
+
+static int nfs_rename_continue_1_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
+{
+ 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;
+ 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) {
+ rpc_set_error(nfs->rpc, "RPC error: Failed to send LOOKUP call for %s", rename_data->newpath);
+ data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
+ free_nfs_cb_data(data);
+ return -1;
+ }
+ data->continue_data = NULL;
+ free_nfs_cb_data(data);
+
+ return 0;
+}
+
+
+int nfs_rename_async(struct nfs_context *nfs, const char *oldpath, const char *newpath, nfs_cb cb, void *private_data)
+{
+ char *ptr;
+ struct nfs_rename_data *rename_data;
+
+ rename_data = malloc(sizeof(struct nfs_rename_data));
+ if (rename_data == NULL) {
+ printf("Out of memory, failed to allocate buffer for rename data\n");
+ return -1;
+ }
+ bzero(rename_data, sizeof(struct nfs_rename_data));
+
+ rename_data->oldpath = strdup(oldpath);
+ if (rename_data->oldpath == NULL) {
+ printf("Out of memory, failed to allocate buffer for oldpath\n");
+ free_nfs_rename_data(rename_data);
+ return -2;
+ }
+ ptr = rindex(rename_data->oldpath, '/');
+ if (ptr == NULL) {
+ printf("Invalid path %s\n", oldpath);
+ free_nfs_rename_data(rename_data);
+ return -3;
+ }
+ *ptr = 0;
+ ptr++;
+ rename_data->oldobject = ptr;
+
+
+ rename_data->newpath = strdup(newpath);
+ if (rename_data->newpath == NULL) {
+ printf("Out of memory, failed to allocate buffer for newpath\n");
+ free_nfs_rename_data(rename_data);
+ return -4;
+ }
+ ptr = rindex(rename_data->newpath, '/');
+ if (ptr == NULL) {
+ printf("Invalid path %s\n", newpath);
+ free_nfs_rename_data(rename_data);
+ return -5;
+ }
+ *ptr = 0;
+ ptr++;
+ rename_data->newobject = ptr;
+
+
+ if (nfs_lookuppath_async(nfs, rename_data->oldpath, cb, private_data, nfs_rename_continue_1_internal, rename_data, free_nfs_rename_data, 0) != 0) {
+ printf("Out of memory: failed to start parsing the path components\n");
+ return -6;
+ }
+
+ return 0;
+}
+
+
+/*
+ * Async link()
+ */
+struct nfs_link_data {
+ char *oldpath;
+ struct nfs_fh3 oldfh;
+ char *newpath;
+ char *newobject;
+ struct nfs_fh3 newdir;
+};
+
+static void free_nfs_link_data(void *mem)
+{
+ struct nfs_link_data *data = mem;
+
+ if (data->oldpath != NULL) {
+ free(data->oldpath);
+ }
+ if (data->oldfh.data.data_val != NULL) {
+ free(data->oldfh.data.data_val);
+ }
+ if (data->newpath != NULL) {
+ free(data->newpath);
+ }
+ if (data->newdir.data.data_val != NULL) {
+ free(data->newdir.data.data_val);
+ }
+ free(data);
+}
+
+static void nfs_link_cb(struct rpc_context *rpc _U_, 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;
+
+ 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: LINK %s -> %s/%s failed with %s(%d)", link_data->oldpath, link_data->newpath, link_data->newobject, 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_link_continue_2_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
+{
+ struct nfs_link_data *link_data = data->continue_data;
+
+ /* 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;
+ 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) {
+ 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);
+ return -1;
+ }
+ return 0;
+}
+
+
+static int nfs_link_continue_1_internal(struct nfs_context *nfs, struct nfs_cb_data *data)
+{
+ 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;
+ 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) {
+ rpc_set_error(nfs->rpc, "RPC error: Failed to send LOOKUP call for %s", link_data->newpath);
+ data->cb(-ENOMEM, nfs, rpc_get_error(nfs->rpc), data->private_data);
+ free_nfs_cb_data(data);
+ return -1;
+ }
+ data->continue_data = NULL;
+ free_nfs_cb_data(data);
+
+ return 0;
+}
+
+
+int nfs_link_async(struct nfs_context *nfs, const char *oldpath, const char *newpath, nfs_cb cb, void *private_data)
+{
+ char *ptr;
+ struct nfs_link_data *link_data;
+
+ link_data = malloc(sizeof(struct nfs_link_data));
+ if (link_data == NULL) {
+ printf("Out of memory, failed to allocate buffer for link data\n");
+ return -1;
+ }
+ bzero(link_data, sizeof(struct nfs_link_data));
+
+ link_data->oldpath = strdup(oldpath);
+ if (link_data->oldpath == NULL) {
+ printf("Out of memory, failed to allocate buffer for oldpath\n");
+ free_nfs_link_data(link_data);
+ return -2;
+ }
+
+ link_data->newpath = strdup(newpath);
+ if (link_data->newpath == NULL) {
+ printf("Out of memory, failed to allocate buffer for newpath\n");
+ free_nfs_link_data(link_data);
+ return -4;
+ }
+ ptr = rindex(link_data->newpath, '/');
+ if (ptr == NULL) {
+ printf("Invalid path %s\n", newpath);
+ free_nfs_link_data(link_data);
+ return -5;
+ }
+ *ptr = 0;
+ ptr++;
+ link_data->newobject = ptr;
+
+
+ if (nfs_lookuppath_async(nfs, link_data->oldpath, cb, private_data, nfs_link_continue_1_internal, link_data, free_nfs_link_data, 0) != 0) {
+ printf("Out of memory: failed to start parsing the path components\n");
+ return -6;
+ }
+
+ return 0;
+}
+
+
+//qqq replace later with lseek()
+off_t nfs_get_current_offset(struct nfsfh *nfsfh)
+{
+ return nfsfh->offset;
+}
+
projects / ccan / blobdiff