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https://github.com/samba-team/samba.git
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306783d6f5
Not currently used - no logic changes inside. This will make it possible to pass down a long-lived talloc context from the loading function for modules to use instead of having them internally all use talloc_autofree_context() which is a hidden global. Updated all known module interface numbers, and added a WHATSNEW. Signed-off-by: Jeremy Allison <jra@samba.org> Signed-off-by: Ralph Böhme <slow@samba.org> Autobuild-User(master): Jeremy Allison <jra@samba.org> Autobuild-Date(master): Sat Apr 22 01:17:00 CEST 2017 on sn-devel-144
1260 lines
31 KiB
C
1260 lines
31 KiB
C
/*
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Unix SMB/CIFS implementation.
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CIFS-on-CIFS NTVFS filesystem backend
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Copyright (C) Andrew Tridgell 2003
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Copyright (C) James J Myers 2003 <myersjj@samba.org>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/*
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this implements a CIFS->CIFS NTVFS filesystem backend.
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*/
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#include "includes.h"
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#include "libcli/raw/libcliraw.h"
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#include "libcli/raw/raw_proto.h"
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#include "libcli/smb_composite/smb_composite.h"
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#include "auth/auth.h"
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#include "auth/credentials/credentials.h"
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#include "ntvfs/ntvfs.h"
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#include "../lib/util/dlinklist.h"
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#include "param/param.h"
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#include "libcli/resolve/resolve.h"
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#include "../libcli/smb/smbXcli_base.h"
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struct cvfs_file {
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struct cvfs_file *prev, *next;
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uint16_t fnum;
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struct ntvfs_handle *h;
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};
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/* this is stored in ntvfs_private */
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struct cvfs_private {
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struct smbcli_tree *tree;
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struct smbcli_transport *transport;
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struct ntvfs_module_context *ntvfs;
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struct async_info *pending;
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struct cvfs_file *files;
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bool map_generic;
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bool map_trans2;
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};
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/* a structure used to pass information to an async handler */
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struct async_info {
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struct async_info *next, *prev;
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struct cvfs_private *cvfs;
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struct ntvfs_request *req;
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struct smbcli_request *c_req;
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struct cvfs_file *f;
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void *parms;
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};
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NTSTATUS ntvfs_cifs_init(TALLOC_CTX *);
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#define CHECK_UPSTREAM_OPEN do { \
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if (!smbXcli_conn_is_connected(p->transport->conn)) { \
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req->async_states->state|=NTVFS_ASYNC_STATE_CLOSE; \
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return NT_STATUS_CONNECTION_DISCONNECTED; \
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} \
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} while(0)
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#define SETUP_PID do { \
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p->tree->session->pid = req->smbpid; \
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CHECK_UPSTREAM_OPEN; \
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} while(0)
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#define SETUP_FILE_HERE(f) do { \
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f = ntvfs_handle_get_backend_data(io->generic.in.file.ntvfs, ntvfs); \
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if (!f) return NT_STATUS_INVALID_HANDLE; \
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io->generic.in.file.fnum = f->fnum; \
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} while (0)
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#define SETUP_FILE do { \
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struct cvfs_file *f; \
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SETUP_FILE_HERE(f); \
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} while (0)
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#define SETUP_PID_AND_FILE do { \
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SETUP_PID; \
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SETUP_FILE; \
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} while (0)
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#define CIFS_SERVER "cifs:server"
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#define CIFS_USER "cifs:user"
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#define CIFS_PASSWORD "cifs:password"
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#define CIFS_DOMAIN "cifs:domain"
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#define CIFS_SHARE "cifs:share"
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#define CIFS_USE_MACHINE_ACCT "cifs:use-machine-account"
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#define CIFS_USE_S4U2PROXY "cifs:use-s4u2proxy"
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#define CIFS_MAP_GENERIC "cifs:map-generic"
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#define CIFS_MAP_TRANS2 "cifs:map-trans2"
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#define CIFS_USE_MACHINE_ACCT_DEFAULT false
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#define CIFS_USE_S4U2PROXY_DEFAULT false
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#define CIFS_MAP_GENERIC_DEFAULT false
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#define CIFS_MAP_TRANS2_DEFAULT true
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/*
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a handler for oplock break events from the server - these need to be passed
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along to the client
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*/
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static bool oplock_handler(struct smbcli_transport *transport, uint16_t tid, uint16_t fnum, uint8_t level, void *p_private)
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{
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struct cvfs_private *p = p_private;
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NTSTATUS status;
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struct ntvfs_handle *h = NULL;
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struct cvfs_file *f;
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for (f=p->files; f; f=f->next) {
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if (f->fnum != fnum) continue;
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h = f->h;
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break;
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}
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if (!h) {
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DEBUG(5,("vfs_cifs: ignoring oplock break level %d for fnum %d\n", level, fnum));
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return true;
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}
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DEBUG(5,("vfs_cifs: sending oplock break level %d for fnum %d\n", level, fnum));
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status = ntvfs_send_oplock_break(p->ntvfs, h, level);
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if (!NT_STATUS_IS_OK(status)) return false;
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return true;
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}
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/*
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connect to a share - used when a tree_connect operation comes in.
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*/
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static NTSTATUS cvfs_connect(struct ntvfs_module_context *ntvfs,
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struct ntvfs_request *req,
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union smb_tcon *tcon)
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{
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NTSTATUS status;
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struct cvfs_private *p;
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const char *host, *user, *pass, *domain, *remote_share;
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struct smb_composite_connect io;
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struct composite_context *creq;
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struct share_config *scfg = ntvfs->ctx->config;
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struct cli_credentials *credentials;
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bool machine_account;
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bool s4u2proxy;
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const char* sharename;
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TALLOC_CTX *tmp_ctx;
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tmp_ctx = talloc_new(req);
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if (tmp_ctx == NULL) {
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return NT_STATUS_NO_MEMORY;
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}
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switch (tcon->generic.level) {
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case RAW_TCON_TCON:
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sharename = tcon->tcon.in.service;
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break;
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case RAW_TCON_TCONX:
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sharename = tcon->tconx.in.path;
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break;
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case RAW_TCON_SMB2:
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sharename = tcon->smb2.in.path;
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break;
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default:
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status = NT_STATUS_INVALID_LEVEL;
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goto out;
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}
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if (strncmp(sharename, "\\\\", 2) == 0) {
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char *str = strchr(sharename+2, '\\');
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if (str) {
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sharename = str + 1;
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}
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}
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/* Here we need to determine which server to connect to.
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* For now we use parametric options, type cifs.
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*/
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host = share_string_option(tmp_ctx, scfg, CIFS_SERVER, NULL);
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user = share_string_option(tmp_ctx, scfg, CIFS_USER, NULL);
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pass = share_string_option(tmp_ctx, scfg, CIFS_PASSWORD, NULL);
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domain = share_string_option(tmp_ctx, scfg, CIFS_DOMAIN, NULL);
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remote_share = share_string_option(tmp_ctx, scfg, CIFS_SHARE, NULL);
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if (!remote_share) {
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remote_share = sharename;
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}
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machine_account = share_bool_option(scfg, CIFS_USE_MACHINE_ACCT, CIFS_USE_MACHINE_ACCT_DEFAULT);
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s4u2proxy = share_bool_option(scfg, CIFS_USE_S4U2PROXY, CIFS_USE_S4U2PROXY_DEFAULT);
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p = talloc_zero(ntvfs, struct cvfs_private);
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if (!p) {
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status = NT_STATUS_NO_MEMORY;
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goto out;
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}
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ntvfs->private_data = p;
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if (!host) {
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DEBUG(1,("CIFS backend: You must supply server\n"));
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status = NT_STATUS_INVALID_PARAMETER;
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goto out;
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}
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if (user && pass) {
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DEBUG(5, ("CIFS backend: Using specified password\n"));
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credentials = cli_credentials_init(p);
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if (!credentials) {
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status = NT_STATUS_NO_MEMORY;
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goto out;
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}
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cli_credentials_set_conf(credentials, ntvfs->ctx->lp_ctx);
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cli_credentials_set_username(credentials, user, CRED_SPECIFIED);
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if (domain) {
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cli_credentials_set_domain(credentials, domain, CRED_SPECIFIED);
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}
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cli_credentials_set_password(credentials, pass, CRED_SPECIFIED);
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} else if (machine_account) {
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DEBUG(5, ("CIFS backend: Using machine account\n"));
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credentials = cli_credentials_init(p);
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cli_credentials_set_conf(credentials, ntvfs->ctx->lp_ctx);
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if (domain) {
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cli_credentials_set_domain(credentials, domain, CRED_SPECIFIED);
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}
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status = cli_credentials_set_machine_account(credentials, ntvfs->ctx->lp_ctx);
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if (!NT_STATUS_IS_OK(status)) {
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goto out;
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}
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} else if (req->session_info->credentials) {
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DEBUG(5, ("CIFS backend: Using delegated credentials\n"));
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credentials = req->session_info->credentials;
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} else if (s4u2proxy) {
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struct ccache_container *ccc = NULL;
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const char *err_str = NULL;
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int ret;
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char *impersonate_principal;
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char *self_service;
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char *target_service;
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impersonate_principal = talloc_asprintf(req, "%s@%s",
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req->session_info->info->account_name,
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req->session_info->info->domain_name);
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self_service = talloc_asprintf(req, "cifs/%s",
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lpcfg_netbios_name(ntvfs->ctx->lp_ctx));
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target_service = talloc_asprintf(req, "cifs/%s", host);
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DEBUG(5, ("CIFS backend: Using S4U2Proxy credentials\n"));
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credentials = cli_credentials_init(p);
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cli_credentials_set_conf(credentials, ntvfs->ctx->lp_ctx);
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if (domain) {
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cli_credentials_set_domain(credentials, domain, CRED_SPECIFIED);
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}
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status = cli_credentials_set_machine_account(credentials, ntvfs->ctx->lp_ctx);
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if (!NT_STATUS_IS_OK(status)) {
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goto out;
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}
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cli_credentials_invalidate_ccache(credentials, CRED_SPECIFIED);
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cli_credentials_set_impersonate_principal(credentials,
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impersonate_principal,
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self_service);
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cli_credentials_set_target_service(credentials, target_service);
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ret = cli_credentials_get_ccache(credentials,
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ntvfs->ctx->event_ctx,
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ntvfs->ctx->lp_ctx,
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&ccc,
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&err_str);
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if (ret != 0) {
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status = NT_STATUS_CROSSREALM_DELEGATION_FAILURE;
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DEBUG(1,("S4U2Proxy: cli_credentials_get_ccache() gave: ret[%d] str[%s] - %s\n",
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ret, err_str, nt_errstr(status)));
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goto out;
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}
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} else {
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DEBUG(1,("CIFS backend: NO delegated credentials found: You must supply server, user and password or the client must supply delegated credentials\n"));
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status = NT_STATUS_INTERNAL_ERROR;
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goto out;
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}
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/* connect to the server, using the smbd event context */
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io.in.dest_host = host;
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io.in.dest_ports = lpcfg_smb_ports(ntvfs->ctx->lp_ctx);
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io.in.socket_options = lpcfg_socket_options(ntvfs->ctx->lp_ctx);
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io.in.called_name = host;
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io.in.credentials = credentials;
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io.in.fallback_to_anonymous = false;
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io.in.workgroup = lpcfg_workgroup(ntvfs->ctx->lp_ctx);
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io.in.service = remote_share;
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io.in.service_type = "?????";
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io.in.gensec_settings = lpcfg_gensec_settings(p, ntvfs->ctx->lp_ctx);
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lpcfg_smbcli_options(ntvfs->ctx->lp_ctx, &io.in.options);
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lpcfg_smbcli_session_options(ntvfs->ctx->lp_ctx, &io.in.session_options);
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if (!(ntvfs->ctx->client_caps & NTVFS_CLIENT_CAP_LEVEL_II_OPLOCKS)) {
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io.in.options.use_level2_oplocks = false;
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}
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creq = smb_composite_connect_send(&io, p,
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lpcfg_resolve_context(ntvfs->ctx->lp_ctx),
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ntvfs->ctx->event_ctx);
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status = smb_composite_connect_recv(creq, p);
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if (!NT_STATUS_IS_OK(status)) {
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goto out;
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}
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p->tree = io.out.tree;
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p->transport = p->tree->session->transport;
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SETUP_PID;
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p->ntvfs = ntvfs;
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ntvfs->ctx->fs_type = talloc_strdup(ntvfs->ctx, "NTFS");
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if (ntvfs->ctx->fs_type == NULL) {
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status = NT_STATUS_NO_MEMORY;
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goto out;
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}
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ntvfs->ctx->dev_type = talloc_strdup(ntvfs->ctx, "A:");
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if (ntvfs->ctx->dev_type == NULL) {
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status = NT_STATUS_NO_MEMORY;
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goto out;
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}
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if (tcon->generic.level == RAW_TCON_TCONX) {
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tcon->tconx.out.fs_type = ntvfs->ctx->fs_type;
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tcon->tconx.out.dev_type = ntvfs->ctx->dev_type;
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}
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/* we need to receive oplock break requests from the server */
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smbcli_oplock_handler(p->transport, oplock_handler, p);
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p->map_generic = share_bool_option(scfg, CIFS_MAP_GENERIC, CIFS_MAP_GENERIC_DEFAULT);
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p->map_trans2 = share_bool_option(scfg, CIFS_MAP_TRANS2, CIFS_MAP_TRANS2_DEFAULT);
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status = NT_STATUS_OK;
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out:
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TALLOC_FREE(tmp_ctx);
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return status;
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}
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|
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/*
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disconnect from a share
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*/
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static NTSTATUS cvfs_disconnect(struct ntvfs_module_context *ntvfs)
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{
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struct cvfs_private *p = ntvfs->private_data;
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struct async_info *a, *an;
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/* first cleanup pending requests */
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for (a=p->pending; a; a = an) {
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an = a->next;
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smbcli_request_destroy(a->c_req);
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talloc_free(a);
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}
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talloc_free(p);
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ntvfs->private_data = NULL;
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return NT_STATUS_OK;
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}
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|
|
/*
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destroy an async info structure
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*/
|
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static int async_info_destructor(struct async_info *async)
|
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{
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DLIST_REMOVE(async->cvfs->pending, async);
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return 0;
|
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}
|
|
|
|
/*
|
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a handler for simple async replies
|
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this handler can only be used for functions that don't return any
|
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parameters (those that just return a status code)
|
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*/
|
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static void async_simple(struct smbcli_request *c_req)
|
|
{
|
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struct async_info *async = c_req->async.private_data;
|
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struct ntvfs_request *req = async->req;
|
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req->async_states->status = smbcli_request_simple_recv(c_req);
|
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talloc_free(async);
|
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req->async_states->send_fn(req);
|
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}
|
|
|
|
|
|
/* save some typing for the simple functions */
|
|
#define ASYNC_RECV_TAIL_F(io, async_fn, file) do { \
|
|
if (!c_req) return NT_STATUS_UNSUCCESSFUL; \
|
|
{ \
|
|
struct async_info *async; \
|
|
async = talloc(req, struct async_info); \
|
|
if (!async) return NT_STATUS_NO_MEMORY; \
|
|
async->parms = io; \
|
|
async->req = req; \
|
|
async->f = file; \
|
|
async->cvfs = p; \
|
|
async->c_req = c_req; \
|
|
DLIST_ADD(p->pending, async); \
|
|
c_req->async.private_data = async; \
|
|
talloc_set_destructor(async, async_info_destructor); \
|
|
} \
|
|
c_req->async.fn = async_fn; \
|
|
req->async_states->state |= NTVFS_ASYNC_STATE_ASYNC; \
|
|
return NT_STATUS_OK; \
|
|
} while (0)
|
|
|
|
#define ASYNC_RECV_TAIL(io, async_fn) ASYNC_RECV_TAIL_F(io, async_fn, NULL)
|
|
|
|
#define SIMPLE_ASYNC_TAIL ASYNC_RECV_TAIL(NULL, async_simple)
|
|
|
|
/*
|
|
delete a file - the dirtype specifies the file types to include in the search.
|
|
The name can contain CIFS wildcards, but rarely does (except with OS/2 clients)
|
|
*/
|
|
static NTSTATUS cvfs_unlink(struct ntvfs_module_context *ntvfs,
|
|
struct ntvfs_request *req, union smb_unlink *unl)
|
|
{
|
|
struct cvfs_private *p = ntvfs->private_data;
|
|
struct smbcli_request *c_req;
|
|
|
|
SETUP_PID;
|
|
|
|
/* see if the front end will allow us to perform this
|
|
function asynchronously. */
|
|
if (!(req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
|
|
return smb_raw_unlink(p->tree, unl);
|
|
}
|
|
|
|
c_req = smb_raw_unlink_send(p->tree, unl);
|
|
|
|
SIMPLE_ASYNC_TAIL;
|
|
}
|
|
|
|
/*
|
|
a handler for async ioctl replies
|
|
*/
|
|
static void async_ioctl(struct smbcli_request *c_req)
|
|
{
|
|
struct async_info *async = c_req->async.private_data;
|
|
struct ntvfs_request *req = async->req;
|
|
req->async_states->status = smb_raw_ioctl_recv(c_req, req, async->parms);
|
|
talloc_free(async);
|
|
req->async_states->send_fn(req);
|
|
}
|
|
|
|
/*
|
|
ioctl interface
|
|
*/
|
|
static NTSTATUS cvfs_ioctl(struct ntvfs_module_context *ntvfs,
|
|
struct ntvfs_request *req, union smb_ioctl *io)
|
|
{
|
|
struct cvfs_private *p = ntvfs->private_data;
|
|
struct smbcli_request *c_req;
|
|
|
|
SETUP_PID_AND_FILE;
|
|
|
|
/* see if the front end will allow us to perform this
|
|
function asynchronously. */
|
|
if (!(req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
|
|
return smb_raw_ioctl(p->tree, req, io);
|
|
}
|
|
|
|
c_req = smb_raw_ioctl_send(p->tree, io);
|
|
|
|
ASYNC_RECV_TAIL(io, async_ioctl);
|
|
}
|
|
|
|
/*
|
|
check if a directory exists
|
|
*/
|
|
static NTSTATUS cvfs_chkpath(struct ntvfs_module_context *ntvfs,
|
|
struct ntvfs_request *req, union smb_chkpath *cp)
|
|
{
|
|
struct cvfs_private *p = ntvfs->private_data;
|
|
struct smbcli_request *c_req;
|
|
|
|
SETUP_PID;
|
|
|
|
if (!(req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
|
|
return smb_raw_chkpath(p->tree, cp);
|
|
}
|
|
|
|
c_req = smb_raw_chkpath_send(p->tree, cp);
|
|
|
|
SIMPLE_ASYNC_TAIL;
|
|
}
|
|
|
|
/*
|
|
a handler for async qpathinfo replies
|
|
*/
|
|
static void async_qpathinfo(struct smbcli_request *c_req)
|
|
{
|
|
struct async_info *async = c_req->async.private_data;
|
|
struct ntvfs_request *req = async->req;
|
|
req->async_states->status = smb_raw_pathinfo_recv(c_req, req, async->parms);
|
|
talloc_free(async);
|
|
req->async_states->send_fn(req);
|
|
}
|
|
|
|
/*
|
|
return info on a pathname
|
|
*/
|
|
static NTSTATUS cvfs_qpathinfo(struct ntvfs_module_context *ntvfs,
|
|
struct ntvfs_request *req, union smb_fileinfo *info)
|
|
{
|
|
struct cvfs_private *p = ntvfs->private_data;
|
|
struct smbcli_request *c_req;
|
|
|
|
SETUP_PID;
|
|
|
|
if (!(req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
|
|
return smb_raw_pathinfo(p->tree, req, info);
|
|
}
|
|
|
|
c_req = smb_raw_pathinfo_send(p->tree, info);
|
|
|
|
ASYNC_RECV_TAIL(info, async_qpathinfo);
|
|
}
|
|
|
|
/*
|
|
a handler for async qfileinfo replies
|
|
*/
|
|
static void async_qfileinfo(struct smbcli_request *c_req)
|
|
{
|
|
struct async_info *async = c_req->async.private_data;
|
|
struct ntvfs_request *req = async->req;
|
|
req->async_states->status = smb_raw_fileinfo_recv(c_req, req, async->parms);
|
|
talloc_free(async);
|
|
req->async_states->send_fn(req);
|
|
}
|
|
|
|
/*
|
|
query info on a open file
|
|
*/
|
|
static NTSTATUS cvfs_qfileinfo(struct ntvfs_module_context *ntvfs,
|
|
struct ntvfs_request *req, union smb_fileinfo *io)
|
|
{
|
|
struct cvfs_private *p = ntvfs->private_data;
|
|
struct smbcli_request *c_req;
|
|
|
|
SETUP_PID_AND_FILE;
|
|
|
|
if (!(req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
|
|
return smb_raw_fileinfo(p->tree, req, io);
|
|
}
|
|
|
|
c_req = smb_raw_fileinfo_send(p->tree, io);
|
|
|
|
ASYNC_RECV_TAIL(io, async_qfileinfo);
|
|
}
|
|
|
|
|
|
/*
|
|
set info on a pathname
|
|
*/
|
|
static NTSTATUS cvfs_setpathinfo(struct ntvfs_module_context *ntvfs,
|
|
struct ntvfs_request *req, union smb_setfileinfo *st)
|
|
{
|
|
struct cvfs_private *p = ntvfs->private_data;
|
|
struct smbcli_request *c_req;
|
|
|
|
SETUP_PID;
|
|
|
|
if (!(req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
|
|
return smb_raw_setpathinfo(p->tree, st);
|
|
}
|
|
|
|
c_req = smb_raw_setpathinfo_send(p->tree, st);
|
|
|
|
SIMPLE_ASYNC_TAIL;
|
|
}
|
|
|
|
|
|
/*
|
|
a handler for async open replies
|
|
*/
|
|
static void async_open(struct smbcli_request *c_req)
|
|
{
|
|
struct async_info *async = c_req->async.private_data;
|
|
struct cvfs_private *cvfs = async->cvfs;
|
|
struct ntvfs_request *req = async->req;
|
|
struct cvfs_file *f = async->f;
|
|
union smb_open *io = async->parms;
|
|
union smb_handle *file;
|
|
talloc_free(async);
|
|
req->async_states->status = smb_raw_open_recv(c_req, req, io);
|
|
SMB_OPEN_OUT_FILE(io, file);
|
|
f->fnum = file->fnum;
|
|
file->ntvfs = NULL;
|
|
if (!NT_STATUS_IS_OK(req->async_states->status)) goto failed;
|
|
req->async_states->status = ntvfs_handle_set_backend_data(f->h, cvfs->ntvfs, f);
|
|
if (!NT_STATUS_IS_OK(req->async_states->status)) goto failed;
|
|
file->ntvfs = f->h;
|
|
DLIST_ADD(cvfs->files, f);
|
|
failed:
|
|
req->async_states->send_fn(req);
|
|
}
|
|
|
|
/*
|
|
open a file
|
|
*/
|
|
static NTSTATUS cvfs_open(struct ntvfs_module_context *ntvfs,
|
|
struct ntvfs_request *req, union smb_open *io)
|
|
{
|
|
struct cvfs_private *p = ntvfs->private_data;
|
|
struct smbcli_request *c_req;
|
|
struct ntvfs_handle *h;
|
|
struct cvfs_file *f;
|
|
NTSTATUS status;
|
|
|
|
SETUP_PID;
|
|
|
|
if (io->generic.level != RAW_OPEN_GENERIC &&
|
|
p->map_generic) {
|
|
return ntvfs_map_open(ntvfs, req, io);
|
|
}
|
|
|
|
status = ntvfs_handle_new(ntvfs, req, &h);
|
|
NT_STATUS_NOT_OK_RETURN(status);
|
|
|
|
f = talloc_zero(h, struct cvfs_file);
|
|
NT_STATUS_HAVE_NO_MEMORY(f);
|
|
f->h = h;
|
|
|
|
if (!(req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
|
|
union smb_handle *file;
|
|
|
|
status = smb_raw_open(p->tree, req, io);
|
|
NT_STATUS_NOT_OK_RETURN(status);
|
|
|
|
SMB_OPEN_OUT_FILE(io, file);
|
|
f->fnum = file->fnum;
|
|
file->ntvfs = NULL;
|
|
status = ntvfs_handle_set_backend_data(f->h, p->ntvfs, f);
|
|
NT_STATUS_NOT_OK_RETURN(status);
|
|
file->ntvfs = f->h;
|
|
DLIST_ADD(p->files, f);
|
|
|
|
return NT_STATUS_OK;
|
|
}
|
|
|
|
c_req = smb_raw_open_send(p->tree, io);
|
|
|
|
ASYNC_RECV_TAIL_F(io, async_open, f);
|
|
}
|
|
|
|
/*
|
|
create a directory
|
|
*/
|
|
static NTSTATUS cvfs_mkdir(struct ntvfs_module_context *ntvfs,
|
|
struct ntvfs_request *req, union smb_mkdir *md)
|
|
{
|
|
struct cvfs_private *p = ntvfs->private_data;
|
|
struct smbcli_request *c_req;
|
|
|
|
SETUP_PID;
|
|
|
|
if (!(req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
|
|
return smb_raw_mkdir(p->tree, md);
|
|
}
|
|
|
|
c_req = smb_raw_mkdir_send(p->tree, md);
|
|
|
|
SIMPLE_ASYNC_TAIL;
|
|
}
|
|
|
|
/*
|
|
remove a directory
|
|
*/
|
|
static NTSTATUS cvfs_rmdir(struct ntvfs_module_context *ntvfs,
|
|
struct ntvfs_request *req, struct smb_rmdir *rd)
|
|
{
|
|
struct cvfs_private *p = ntvfs->private_data;
|
|
struct smbcli_request *c_req;
|
|
|
|
SETUP_PID;
|
|
|
|
if (!(req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
|
|
return smb_raw_rmdir(p->tree, rd);
|
|
}
|
|
c_req = smb_raw_rmdir_send(p->tree, rd);
|
|
|
|
SIMPLE_ASYNC_TAIL;
|
|
}
|
|
|
|
/*
|
|
rename a set of files
|
|
*/
|
|
static NTSTATUS cvfs_rename(struct ntvfs_module_context *ntvfs,
|
|
struct ntvfs_request *req, union smb_rename *ren)
|
|
{
|
|
struct cvfs_private *p = ntvfs->private_data;
|
|
struct smbcli_request *c_req;
|
|
|
|
SETUP_PID;
|
|
|
|
if (ren->nttrans.level == RAW_RENAME_NTTRANS) {
|
|
struct cvfs_file *f;
|
|
f = ntvfs_handle_get_backend_data(ren->nttrans.in.file.ntvfs, ntvfs);
|
|
if (!f) return NT_STATUS_INVALID_HANDLE;
|
|
ren->nttrans.in.file.fnum = f->fnum;
|
|
}
|
|
|
|
if (!(req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
|
|
return smb_raw_rename(p->tree, ren);
|
|
}
|
|
|
|
c_req = smb_raw_rename_send(p->tree, ren);
|
|
|
|
SIMPLE_ASYNC_TAIL;
|
|
}
|
|
|
|
/*
|
|
copy a set of files
|
|
*/
|
|
static NTSTATUS cvfs_copy(struct ntvfs_module_context *ntvfs,
|
|
struct ntvfs_request *req, struct smb_copy *cp)
|
|
{
|
|
return NT_STATUS_NOT_SUPPORTED;
|
|
}
|
|
|
|
/*
|
|
a handler for async read replies
|
|
*/
|
|
static void async_read(struct smbcli_request *c_req)
|
|
{
|
|
struct async_info *async = c_req->async.private_data;
|
|
struct ntvfs_request *req = async->req;
|
|
req->async_states->status = smb_raw_read_recv(c_req, async->parms);
|
|
talloc_free(async);
|
|
req->async_states->send_fn(req);
|
|
}
|
|
|
|
/*
|
|
read from a file
|
|
*/
|
|
static NTSTATUS cvfs_read(struct ntvfs_module_context *ntvfs,
|
|
struct ntvfs_request *req, union smb_read *io)
|
|
{
|
|
struct cvfs_private *p = ntvfs->private_data;
|
|
struct smbcli_request *c_req;
|
|
|
|
SETUP_PID;
|
|
|
|
if (io->generic.level != RAW_READ_GENERIC &&
|
|
p->map_generic) {
|
|
return ntvfs_map_read(ntvfs, req, io);
|
|
}
|
|
|
|
SETUP_FILE;
|
|
|
|
if (!(req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
|
|
return smb_raw_read(p->tree, io);
|
|
}
|
|
|
|
c_req = smb_raw_read_send(p->tree, io);
|
|
|
|
ASYNC_RECV_TAIL(io, async_read);
|
|
}
|
|
|
|
/*
|
|
a handler for async write replies
|
|
*/
|
|
static void async_write(struct smbcli_request *c_req)
|
|
{
|
|
struct async_info *async = c_req->async.private_data;
|
|
struct ntvfs_request *req = async->req;
|
|
req->async_states->status = smb_raw_write_recv(c_req, async->parms);
|
|
talloc_free(async);
|
|
req->async_states->send_fn(req);
|
|
}
|
|
|
|
/*
|
|
write to a file
|
|
*/
|
|
static NTSTATUS cvfs_write(struct ntvfs_module_context *ntvfs,
|
|
struct ntvfs_request *req, union smb_write *io)
|
|
{
|
|
struct cvfs_private *p = ntvfs->private_data;
|
|
struct smbcli_request *c_req;
|
|
|
|
SETUP_PID;
|
|
|
|
if (io->generic.level != RAW_WRITE_GENERIC &&
|
|
p->map_generic) {
|
|
return ntvfs_map_write(ntvfs, req, io);
|
|
}
|
|
SETUP_FILE;
|
|
|
|
if (!(req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
|
|
return smb_raw_write(p->tree, io);
|
|
}
|
|
|
|
c_req = smb_raw_write_send(p->tree, io);
|
|
|
|
ASYNC_RECV_TAIL(io, async_write);
|
|
}
|
|
|
|
/*
|
|
a handler for async seek replies
|
|
*/
|
|
static void async_seek(struct smbcli_request *c_req)
|
|
{
|
|
struct async_info *async = c_req->async.private_data;
|
|
struct ntvfs_request *req = async->req;
|
|
req->async_states->status = smb_raw_seek_recv(c_req, async->parms);
|
|
talloc_free(async);
|
|
req->async_states->send_fn(req);
|
|
}
|
|
|
|
/*
|
|
seek in a file
|
|
*/
|
|
static NTSTATUS cvfs_seek(struct ntvfs_module_context *ntvfs,
|
|
struct ntvfs_request *req,
|
|
union smb_seek *io)
|
|
{
|
|
struct cvfs_private *p = ntvfs->private_data;
|
|
struct smbcli_request *c_req;
|
|
|
|
SETUP_PID_AND_FILE;
|
|
|
|
if (!(req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
|
|
return smb_raw_seek(p->tree, io);
|
|
}
|
|
|
|
c_req = smb_raw_seek_send(p->tree, io);
|
|
|
|
ASYNC_RECV_TAIL(io, async_seek);
|
|
}
|
|
|
|
/*
|
|
flush a file
|
|
*/
|
|
static NTSTATUS cvfs_flush(struct ntvfs_module_context *ntvfs,
|
|
struct ntvfs_request *req,
|
|
union smb_flush *io)
|
|
{
|
|
struct cvfs_private *p = ntvfs->private_data;
|
|
struct smbcli_request *c_req;
|
|
|
|
SETUP_PID;
|
|
switch (io->generic.level) {
|
|
case RAW_FLUSH_FLUSH:
|
|
SETUP_FILE;
|
|
break;
|
|
case RAW_FLUSH_ALL:
|
|
io->generic.in.file.fnum = 0xFFFF;
|
|
break;
|
|
case RAW_FLUSH_SMB2:
|
|
return NT_STATUS_INVALID_LEVEL;
|
|
}
|
|
|
|
if (!(req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
|
|
return smb_raw_flush(p->tree, io);
|
|
}
|
|
|
|
c_req = smb_raw_flush_send(p->tree, io);
|
|
|
|
SIMPLE_ASYNC_TAIL;
|
|
}
|
|
|
|
/*
|
|
close a file
|
|
*/
|
|
static NTSTATUS cvfs_close(struct ntvfs_module_context *ntvfs,
|
|
struct ntvfs_request *req, union smb_close *io)
|
|
{
|
|
struct cvfs_private *p = ntvfs->private_data;
|
|
struct smbcli_request *c_req;
|
|
struct cvfs_file *f;
|
|
union smb_close io2;
|
|
|
|
SETUP_PID;
|
|
|
|
if (io->generic.level != RAW_CLOSE_GENERIC &&
|
|
p->map_generic) {
|
|
return ntvfs_map_close(ntvfs, req, io);
|
|
}
|
|
|
|
if (io->generic.level == RAW_CLOSE_GENERIC) {
|
|
ZERO_STRUCT(io2);
|
|
io2.close.level = RAW_CLOSE_CLOSE;
|
|
io2.close.in.file = io->generic.in.file;
|
|
io2.close.in.write_time = io->generic.in.write_time;
|
|
io = &io2;
|
|
}
|
|
|
|
SETUP_FILE_HERE(f);
|
|
/* Note, we aren't free-ing f, or it's h here. Should we?
|
|
even if file-close fails, we'll remove it from the list,
|
|
what else would we do? Maybe we should not remove until
|
|
after the proxied call completes? */
|
|
DLIST_REMOVE(p->files, f);
|
|
|
|
if (!(req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
|
|
return smb_raw_close(p->tree, io);
|
|
}
|
|
|
|
c_req = smb_raw_close_send(p->tree, io);
|
|
|
|
SIMPLE_ASYNC_TAIL;
|
|
}
|
|
|
|
/*
|
|
exit - closing files open by the pid
|
|
*/
|
|
static NTSTATUS cvfs_exit(struct ntvfs_module_context *ntvfs,
|
|
struct ntvfs_request *req)
|
|
{
|
|
struct cvfs_private *p = ntvfs->private_data;
|
|
struct smbcli_request *c_req;
|
|
|
|
SETUP_PID;
|
|
|
|
if (!(req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
|
|
return smb_raw_exit(p->tree->session);
|
|
}
|
|
|
|
c_req = smb_raw_exit_send(p->tree->session);
|
|
|
|
SIMPLE_ASYNC_TAIL;
|
|
}
|
|
|
|
/*
|
|
logoff - closing files open by the user
|
|
*/
|
|
static NTSTATUS cvfs_logoff(struct ntvfs_module_context *ntvfs,
|
|
struct ntvfs_request *req)
|
|
{
|
|
/* we can't do this right in the cifs backend .... */
|
|
return NT_STATUS_OK;
|
|
}
|
|
|
|
/*
|
|
setup for an async call - nothing to do yet
|
|
*/
|
|
static NTSTATUS cvfs_async_setup(struct ntvfs_module_context *ntvfs,
|
|
struct ntvfs_request *req,
|
|
void *private_data)
|
|
{
|
|
return NT_STATUS_OK;
|
|
}
|
|
|
|
/*
|
|
cancel an async call
|
|
*/
|
|
static NTSTATUS cvfs_cancel(struct ntvfs_module_context *ntvfs,
|
|
struct ntvfs_request *req)
|
|
{
|
|
struct cvfs_private *p = ntvfs->private_data;
|
|
struct async_info *a;
|
|
|
|
/* find the matching request */
|
|
for (a=p->pending;a;a=a->next) {
|
|
if (a->req == req) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (a == NULL) {
|
|
return NT_STATUS_INVALID_PARAMETER;
|
|
}
|
|
|
|
return smb_raw_ntcancel(a->c_req);
|
|
}
|
|
|
|
/*
|
|
lock a byte range
|
|
*/
|
|
static NTSTATUS cvfs_lock(struct ntvfs_module_context *ntvfs,
|
|
struct ntvfs_request *req, union smb_lock *io)
|
|
{
|
|
struct cvfs_private *p = ntvfs->private_data;
|
|
struct smbcli_request *c_req;
|
|
|
|
SETUP_PID;
|
|
|
|
if (io->generic.level != RAW_LOCK_GENERIC &&
|
|
p->map_generic) {
|
|
return ntvfs_map_lock(ntvfs, req, io);
|
|
}
|
|
SETUP_FILE;
|
|
|
|
if (!(req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
|
|
return smb_raw_lock(p->tree, io);
|
|
}
|
|
|
|
c_req = smb_raw_lock_send(p->tree, io);
|
|
SIMPLE_ASYNC_TAIL;
|
|
}
|
|
|
|
/*
|
|
set info on a open file
|
|
*/
|
|
static NTSTATUS cvfs_setfileinfo(struct ntvfs_module_context *ntvfs,
|
|
struct ntvfs_request *req,
|
|
union smb_setfileinfo *io)
|
|
{
|
|
struct cvfs_private *p = ntvfs->private_data;
|
|
struct smbcli_request *c_req;
|
|
|
|
SETUP_PID_AND_FILE;
|
|
|
|
if (!(req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
|
|
return smb_raw_setfileinfo(p->tree, io);
|
|
}
|
|
c_req = smb_raw_setfileinfo_send(p->tree, io);
|
|
|
|
SIMPLE_ASYNC_TAIL;
|
|
}
|
|
|
|
|
|
/*
|
|
a handler for async fsinfo replies
|
|
*/
|
|
static void async_fsinfo(struct smbcli_request *c_req)
|
|
{
|
|
struct async_info *async = c_req->async.private_data;
|
|
struct ntvfs_request *req = async->req;
|
|
req->async_states->status = smb_raw_fsinfo_recv(c_req, req, async->parms);
|
|
talloc_free(async);
|
|
req->async_states->send_fn(req);
|
|
}
|
|
|
|
/*
|
|
return filesystem space info
|
|
*/
|
|
static NTSTATUS cvfs_fsinfo(struct ntvfs_module_context *ntvfs,
|
|
struct ntvfs_request *req, union smb_fsinfo *fs)
|
|
{
|
|
struct cvfs_private *p = ntvfs->private_data;
|
|
struct smbcli_request *c_req;
|
|
|
|
SETUP_PID;
|
|
|
|
if (!(req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
|
|
return smb_raw_fsinfo(p->tree, req, fs);
|
|
}
|
|
|
|
c_req = smb_raw_fsinfo_send(p->tree, req, fs);
|
|
|
|
ASYNC_RECV_TAIL(fs, async_fsinfo);
|
|
}
|
|
|
|
/*
|
|
return print queue info
|
|
*/
|
|
static NTSTATUS cvfs_lpq(struct ntvfs_module_context *ntvfs,
|
|
struct ntvfs_request *req, union smb_lpq *lpq)
|
|
{
|
|
return NT_STATUS_NOT_SUPPORTED;
|
|
}
|
|
|
|
/*
|
|
list files in a directory matching a wildcard pattern
|
|
*/
|
|
static NTSTATUS cvfs_search_first(struct ntvfs_module_context *ntvfs,
|
|
struct ntvfs_request *req, union smb_search_first *io,
|
|
void *search_private,
|
|
bool (*callback)(void *, const union smb_search_data *))
|
|
{
|
|
struct cvfs_private *p = ntvfs->private_data;
|
|
|
|
SETUP_PID;
|
|
|
|
return smb_raw_search_first(p->tree, req, io, search_private, callback);
|
|
}
|
|
|
|
/* continue a search */
|
|
static NTSTATUS cvfs_search_next(struct ntvfs_module_context *ntvfs,
|
|
struct ntvfs_request *req, union smb_search_next *io,
|
|
void *search_private,
|
|
bool (*callback)(void *, const union smb_search_data *))
|
|
{
|
|
struct cvfs_private *p = ntvfs->private_data;
|
|
|
|
SETUP_PID;
|
|
|
|
return smb_raw_search_next(p->tree, req, io, search_private, callback);
|
|
}
|
|
|
|
/* close a search */
|
|
static NTSTATUS cvfs_search_close(struct ntvfs_module_context *ntvfs,
|
|
struct ntvfs_request *req, union smb_search_close *io)
|
|
{
|
|
struct cvfs_private *p = ntvfs->private_data;
|
|
|
|
SETUP_PID;
|
|
|
|
return smb_raw_search_close(p->tree, io);
|
|
}
|
|
|
|
/*
|
|
a handler for async trans2 replies
|
|
*/
|
|
static void async_trans2(struct smbcli_request *c_req)
|
|
{
|
|
struct async_info *async = c_req->async.private_data;
|
|
struct ntvfs_request *req = async->req;
|
|
req->async_states->status = smb_raw_trans2_recv(c_req, req, async->parms);
|
|
talloc_free(async);
|
|
req->async_states->send_fn(req);
|
|
}
|
|
|
|
/* raw trans2 */
|
|
static NTSTATUS cvfs_trans2(struct ntvfs_module_context *ntvfs,
|
|
struct ntvfs_request *req,
|
|
struct smb_trans2 *trans2)
|
|
{
|
|
struct cvfs_private *p = ntvfs->private_data;
|
|
struct smbcli_request *c_req;
|
|
|
|
if (p->map_trans2) {
|
|
return NT_STATUS_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
SETUP_PID;
|
|
|
|
if (!(req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
|
|
return smb_raw_trans2(p->tree, req, trans2);
|
|
}
|
|
|
|
c_req = smb_raw_trans2_send(p->tree, trans2);
|
|
|
|
ASYNC_RECV_TAIL(trans2, async_trans2);
|
|
}
|
|
|
|
|
|
/* SMBtrans - not used on file shares */
|
|
static NTSTATUS cvfs_trans(struct ntvfs_module_context *ntvfs,
|
|
struct ntvfs_request *req,
|
|
struct smb_trans2 *trans2)
|
|
{
|
|
return NT_STATUS_ACCESS_DENIED;
|
|
}
|
|
|
|
/*
|
|
a handler for async change notify replies
|
|
*/
|
|
static void async_changenotify(struct smbcli_request *c_req)
|
|
{
|
|
struct async_info *async = c_req->async.private_data;
|
|
struct ntvfs_request *req = async->req;
|
|
req->async_states->status = smb_raw_changenotify_recv(c_req, req, async->parms);
|
|
talloc_free(async);
|
|
req->async_states->send_fn(req);
|
|
}
|
|
|
|
/* change notify request - always async */
|
|
static NTSTATUS cvfs_notify(struct ntvfs_module_context *ntvfs,
|
|
struct ntvfs_request *req,
|
|
union smb_notify *io)
|
|
{
|
|
struct cvfs_private *p = ntvfs->private_data;
|
|
struct smbcli_request *c_req;
|
|
int saved_timeout = p->transport->options.request_timeout;
|
|
struct cvfs_file *f;
|
|
|
|
if (io->nttrans.level != RAW_NOTIFY_NTTRANS) {
|
|
return NT_STATUS_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
SETUP_PID;
|
|
|
|
f = ntvfs_handle_get_backend_data(io->nttrans.in.file.ntvfs, ntvfs);
|
|
if (!f) return NT_STATUS_INVALID_HANDLE;
|
|
io->nttrans.in.file.fnum = f->fnum;
|
|
|
|
/* this request doesn't make sense unless its async */
|
|
if (!(req->async_states->state & NTVFS_ASYNC_STATE_MAY_ASYNC)) {
|
|
return NT_STATUS_INVALID_PARAMETER;
|
|
}
|
|
|
|
/* we must not timeout on notify requests - they wait
|
|
forever */
|
|
p->transport->options.request_timeout = 0;
|
|
|
|
c_req = smb_raw_changenotify_send(p->tree, io);
|
|
|
|
p->transport->options.request_timeout = saved_timeout;
|
|
|
|
ASYNC_RECV_TAIL(io, async_changenotify);
|
|
}
|
|
|
|
/*
|
|
initialise the CIFS->CIFS backend, registering ourselves with the ntvfs subsystem
|
|
*/
|
|
NTSTATUS ntvfs_cifs_init(TALLOC_CTX *ctx)
|
|
{
|
|
NTSTATUS ret;
|
|
struct ntvfs_ops ops;
|
|
NTVFS_CURRENT_CRITICAL_SIZES(vers);
|
|
|
|
ZERO_STRUCT(ops);
|
|
|
|
/* fill in the name and type */
|
|
ops.name = "cifs";
|
|
ops.type = NTVFS_DISK;
|
|
|
|
/* fill in all the operations */
|
|
ops.connect_fn = cvfs_connect;
|
|
ops.disconnect_fn = cvfs_disconnect;
|
|
ops.unlink_fn = cvfs_unlink;
|
|
ops.chkpath_fn = cvfs_chkpath;
|
|
ops.qpathinfo_fn = cvfs_qpathinfo;
|
|
ops.setpathinfo_fn = cvfs_setpathinfo;
|
|
ops.open_fn = cvfs_open;
|
|
ops.mkdir_fn = cvfs_mkdir;
|
|
ops.rmdir_fn = cvfs_rmdir;
|
|
ops.rename_fn = cvfs_rename;
|
|
ops.copy_fn = cvfs_copy;
|
|
ops.ioctl_fn = cvfs_ioctl;
|
|
ops.read_fn = cvfs_read;
|
|
ops.write_fn = cvfs_write;
|
|
ops.seek_fn = cvfs_seek;
|
|
ops.flush_fn = cvfs_flush;
|
|
ops.close_fn = cvfs_close;
|
|
ops.exit_fn = cvfs_exit;
|
|
ops.lock_fn = cvfs_lock;
|
|
ops.setfileinfo_fn = cvfs_setfileinfo;
|
|
ops.qfileinfo_fn = cvfs_qfileinfo;
|
|
ops.fsinfo_fn = cvfs_fsinfo;
|
|
ops.lpq_fn = cvfs_lpq;
|
|
ops.search_first_fn = cvfs_search_first;
|
|
ops.search_next_fn = cvfs_search_next;
|
|
ops.search_close_fn = cvfs_search_close;
|
|
ops.trans_fn = cvfs_trans;
|
|
ops.logoff_fn = cvfs_logoff;
|
|
ops.async_setup_fn = cvfs_async_setup;
|
|
ops.cancel_fn = cvfs_cancel;
|
|
ops.notify_fn = cvfs_notify;
|
|
ops.trans2_fn = cvfs_trans2;
|
|
|
|
/* register ourselves with the NTVFS subsystem. We register
|
|
under the name 'cifs'. */
|
|
ret = ntvfs_register(&ops, &vers);
|
|
|
|
if (!NT_STATUS_IS_OK(ret)) {
|
|
DEBUG(0,("Failed to register CIFS backend!\n"));
|
|
}
|
|
|
|
return ret;
|
|
}
|