--- /dev/null
+/*
+ Unix SMB/CIFS implementation.
+
+ Copyright (C) Andrew Tridgell 2005
+
+ 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 2 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, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+/*
+ a composite API for making a full SMB connection
+*/
+
+#include "includes.h"
+#include "libcli/raw/libcliraw.h"
+#include "libcli/composite/composite.h"
+
+/* the stages of this call */
+enum connect_stage {CONNECT_SOCKET,
+ CONNECT_SESSION_REQUEST,
+ CONNECT_NEGPROT,
+ CONNECT_SESSION_SETUP,
+ CONNECT_TCON};
+
+struct connect_state {
+ struct smbcli_socket *sock;
+ struct smbcli_transport *transport;
+ struct smbcli_session *session;
+};
+
+
+static void request_handler(struct smbcli_request *);
+static void composite_handler(struct smbcli_composite *);
+
+/*
+ setup a negprot send
+*/
+static NTSTATUS connect_send_negprot(struct smbcli_composite *c,
+ struct smb_composite_connect *io)
+{
+ struct connect_state *state = c->private;
+ struct smbcli_request *req;
+
+ req = smb_raw_negotiate_send(state->transport, lp_maxprotocol());
+ NT_STATUS_HAVE_NO_MEMORY(req);
+
+ req->async.fn = request_handler;
+ req->async.private = c;
+ c->stage = CONNECT_NEGPROT;
+ c->req = req;
+
+ return NT_STATUS_OK;
+}
+
+
+/*
+ a tree connect request has competed
+*/
+static NTSTATUS connect_tcon(struct smbcli_composite *c,
+ struct smb_composite_connect *io)
+{
+ struct smbcli_request *req = c->req;
+ union smb_tcon *io_tcon = c->req_parms;
+ NTSTATUS status;
+
+ status = smb_tree_connect_recv(req, c, io_tcon);
+ NT_STATUS_NOT_OK_RETURN(status);
+
+ io->out.tree->tid = io_tcon->tconx.out.tid;
+ if (io_tcon->tconx.out.dev_type) {
+ io->out.tree->device = talloc_strdup(io->out.tree,
+ io_tcon->tconx.out.dev_type);
+ }
+ if (io_tcon->tconx.out.fs_type) {
+ io->out.tree->fs_type = talloc_strdup(io->out.tree,
+ io_tcon->tconx.out.fs_type);
+ }
+
+ /* all done! */
+ c->state = SMBCLI_REQUEST_DONE;
+ if (c->async.fn) {
+ c->async.fn(c);
+ }
+
+ return NT_STATUS_OK;
+}
+
+
+/*
+ a session setup request has competed
+*/
+static NTSTATUS connect_session_setup(struct smbcli_composite *c,
+ struct smb_composite_connect *io)
+{
+ struct connect_state *state = c->private;
+ struct smbcli_request *req = c->req;
+ union smb_sesssetup *io_setup = c->req_parms;
+ union smb_tcon *io_tcon;
+ NTSTATUS status;
+
+ status = smb_raw_session_setup_recv(req, c, io_setup);
+ NT_STATUS_NOT_OK_RETURN(status);
+
+ state->session->vuid = io_setup->nt1.out.vuid;
+
+ /* setup for a tconx */
+ io->out.tree = smbcli_tree_init(state->session);
+ NT_STATUS_HAVE_NO_MEMORY(io->out.tree);
+
+ io_tcon = talloc(c, union smb_tcon);
+ NT_STATUS_HAVE_NO_MEMORY(io_tcon);
+
+ /* connect to a share using a tree connect */
+ io_tcon->generic.level = RAW_TCON_TCONX;
+ io_tcon->tconx.in.flags = 0;
+ io_tcon->tconx.in.password = data_blob(NULL, 0);
+
+ io_tcon->tconx.in.path = talloc_asprintf(io_tcon,
+ "\\\\%s\\%s",
+ io->in.called_name,
+ io->in.service);
+ NT_STATUS_HAVE_NO_MEMORY(io_tcon->tconx.in.path);
+ if (!io->in.service_type) {
+ io_tcon->tconx.in.device = "?????";
+ } else {
+ io_tcon->tconx.in.device = io->in.service_type;
+ }
+
+ req = smb_tree_connect_send(io->out.tree, io_tcon);
+ NT_STATUS_HAVE_NO_MEMORY(req);
+
+ req->async.fn = request_handler;
+ req->async.private = c;
+ c->req_parms = io_tcon;
+ c->req = req;
+ c->stage = CONNECT_TCON;
+
+ return NT_STATUS_OK;
+}
+
+/*
+ form an encrypted lanman password from a plaintext password
+ and the server supplied challenge
+*/
+static DATA_BLOB lanman_blob(const char *pass, DATA_BLOB challenge)
+{
+ DATA_BLOB blob = data_blob(NULL, 24);
+ SMBencrypt(pass, challenge.data, blob.data);
+ return blob;
+}
+
+/*
+ form an encrypted NT password from a plaintext password
+ and the server supplied challenge
+*/
+static DATA_BLOB nt_blob(const char *pass, DATA_BLOB challenge)
+{
+ DATA_BLOB blob = data_blob(NULL, 24);
+ SMBNTencrypt(pass, challenge.data, blob.data);
+ return blob;
+}
+
+/*
+ a negprot request has competed
+*/
+static NTSTATUS connect_negprot(struct smbcli_composite *c,
+ struct smb_composite_connect *io)
+{
+ struct connect_state *state = c->private;
+ struct smbcli_request *req = c->req;
+ NTSTATUS status;
+ union smb_sesssetup *io_setup;
+
+ status = smb_raw_negotiate_recv(req);
+ NT_STATUS_NOT_OK_RETURN(status);
+
+ /* next step is a session setup */
+ state->session = smbcli_session_init(state->transport);
+ NT_STATUS_HAVE_NO_MEMORY(state->session);
+
+ /* get rid of the extra reference to the transport */
+ talloc_free(state->transport);
+
+ io_setup = talloc(c, union smb_sesssetup);
+ NT_STATUS_HAVE_NO_MEMORY(io_setup);
+
+ /* prepare a session setup to establish a security context */
+ io_setup->nt1.level = RAW_SESSSETUP_NT1;
+ io_setup->nt1.in.bufsize = state->session->transport->options.max_xmit;
+ io_setup->nt1.in.mpx_max = state->session->transport->options.max_mux;
+ io_setup->nt1.in.vc_num = 1;
+ io_setup->nt1.in.sesskey = state->transport->negotiate.sesskey;
+ io_setup->nt1.in.capabilities = state->transport->negotiate.capabilities;
+ io_setup->nt1.in.domain = io->in.domain;
+ io_setup->nt1.in.user = io->in.user;
+ io_setup->nt1.in.os = "Unix";
+ io_setup->nt1.in.lanman = "Samba";
+
+ if (!io->in.password) {
+ io_setup->nt1.in.password1 = data_blob(NULL, 0);
+ io_setup->nt1.in.password2 = data_blob(NULL, 0);
+ } else if (state->session->transport->negotiate.sec_mode &
+ NEGOTIATE_SECURITY_CHALLENGE_RESPONSE) {
+ io_setup->nt1.in.password1 = lanman_blob(io->in.password,
+ state->transport->negotiate.secblob);
+ io_setup->nt1.in.password2 = nt_blob(io->in.password,
+ state->transport->negotiate.secblob);
+ smb_session_use_nt1_session_keys(state->session, io->in.password, &io_setup->nt1.in.password2);
+
+ } else {
+ io_setup->nt1.in.password1 = data_blob(io->in.password,
+ strlen(io->in.password));
+ io_setup->nt1.in.password2 = data_blob(NULL, 0);
+ }
+
+ req = smb_raw_session_setup_send(state->session, io_setup);
+ NT_STATUS_HAVE_NO_MEMORY(req);
+
+ req->async.fn = request_handler;
+ req->async.private = c;
+ c->req_parms = io_setup;
+ c->req = req;
+ c->stage = CONNECT_SESSION_SETUP;
+
+ return NT_STATUS_OK;
+}
+
+
+/*
+ a session request operation has competed
+*/
+static NTSTATUS connect_session_request(struct smbcli_composite *c,
+ struct smb_composite_connect *io)
+{
+ struct smbcli_request *req = c->req;
+ NTSTATUS status;
+
+ status = smbcli_transport_connect_recv(req);
+ NT_STATUS_NOT_OK_RETURN(status);
+
+ /* next step is a negprot */
+ return connect_send_negprot(c, io);
+}
+
+/*
+ a socket connection operation has competed
+*/
+static NTSTATUS connect_socket(struct smbcli_composite *c,
+ struct smb_composite_connect *io)
+{
+ struct connect_state *state = c->private;
+ NTSTATUS status;
+ struct smbcli_request *req;
+ struct nmb_name calling, called;
+
+ status = smbcli_sock_connect_recv(c->req);
+ NT_STATUS_NOT_OK_RETURN(status);
+
+ /* the socket is up - we can initialise the smbcli transport layer */
+ state->transport = smbcli_transport_init(state->sock);
+ NT_STATUS_HAVE_NO_MEMORY(state->transport);
+
+ /* we have a connected socket - next step is a session
+ request, if needed. Port 445 doesn't need it, so it goes
+ straight to the negprot */
+ if (state->sock->port == 445) {
+ return connect_send_negprot(c, io);
+ }
+
+ make_nmb_name(&calling, io->in.calling_name, 0x0);
+ choose_called_name(&called, io->in.called_name, 0x20);
+
+ req = smbcli_transport_connect_send(state->transport, &calling, &called);
+ NT_STATUS_HAVE_NO_MEMORY(req);
+
+ req->async.fn = request_handler;
+ req->async.private = c;
+ c->stage = CONNECT_SESSION_REQUEST;
+ c->req = req;
+
+ return NT_STATUS_OK;
+}
+
+
+
+/*
+ handle and dispatch state transitions
+*/
+static void state_handler(struct smbcli_composite *c)
+{
+ struct smb_composite_connect *io = c->composite_parms;
+
+ switch (c->stage) {
+ case CONNECT_SOCKET:
+ c->status = connect_socket(c, io);
+ break;
+ case CONNECT_SESSION_REQUEST:
+ c->status = connect_session_request(c, io);
+ break;
+ case CONNECT_NEGPROT:
+ c->status = connect_negprot(c, io);
+ break;
+ case CONNECT_SESSION_SETUP:
+ c->status = connect_session_setup(c, io);
+ break;
+ case CONNECT_TCON:
+ c->status = connect_tcon(c, io);
+ break;
+ }
+
+ if (!NT_STATUS_IS_OK(c->status)) {
+ c->state = SMBCLI_REQUEST_ERROR;
+ if (c->async.fn) {
+ c->async.fn(c);
+ }
+ }
+}
+
+
+/*
+ handler for completion of a smbcli_request sub-request
+*/
+static void request_handler(struct smbcli_request *req)
+{
+ struct smbcli_composite *c = req->async.private;
+ return state_handler(c);
+}
+
+/*
+ handler for completion of a smbcli_composite sub-request
+*/
+static void composite_handler(struct smbcli_composite *req)
+{
+ struct smbcli_composite *c = req->async.private;
+ return state_handler(c);
+}
+
+/*
+ a function to establish a smbcli_tree from scratch
+*/
+struct smbcli_composite *smb_composite_connect_send(struct smb_composite_connect *io)
+{
+ struct smbcli_composite *c, *req;
+ struct connect_state *state;
+
+ c = talloc_zero(NULL, struct smbcli_composite);
+ if (c == NULL) goto failed;
+
+ state = talloc(c, struct connect_state);
+ if (state == NULL) goto failed;
+
+ state->sock = smbcli_sock_init(state);
+ if (state->sock == NULL) goto failed;
+
+ c->state = SMBCLI_REQUEST_SEND;
+ c->composite_parms = io;
+ c->stage = CONNECT_SOCKET;
+ c->event_ctx = state->sock->event.ctx;
+ c->private = state;
+
+ req = smbcli_sock_connect_send(state->sock, io->in.dest_host, io->in.port);
+ if (req == NULL) goto failed;
+
+ req->async.private = c;
+ req->async.fn = composite_handler;
+ c->req = req;
+
+ return c;
+failed:
+ talloc_free(c);
+ return NULL;
+}
+
+/*
+ recv half of async composite connect code
+*/
+NTSTATUS smb_composite_connect_recv(struct smbcli_composite *c, TALLOC_CTX *mem_ctx)
+{
+ NTSTATUS status;
+
+ status = smb_composite_wait(c);
+
+ if (NT_STATUS_IS_OK(status)) {
+ struct smb_composite_connect *io = c->composite_parms;
+ talloc_steal(mem_ctx, io->out.tree);
+ }
+
+ talloc_free(c);
+ return status;
+}
+
+/*
+ sync version of smb_composite_connect
+*/
+NTSTATUS smb_composite_connect(struct smb_composite_connect *io, TALLOC_CTX *mem_ctx)
+{
+ struct smbcli_composite *c = smb_composite_connect_send(io);
+ return smb_composite_connect_recv(c, mem_ctx);
+}
git.samba.org / gd / samba-autobuild / .git / commitdiff