*/
#include "includes.h"
+#include "system/filesys.h"
+#include <tevent.h>
+#include "lib/tsocket/tsocket.h"
+#include "libcli/smb/smb_constants.h"
+#include "libcli/smb/smbXcli_base.h"
+#include "libcli/smb/tstream_smbXcli_np.h"
#include "libcli/raw/libcliraw.h"
-#include "libcli/composite/composite.h"
+#include "libcli/smb2/smb2.h"
#include "librpc/rpc/dcerpc.h"
#include "librpc/rpc/dcerpc_proto.h"
-#include "librpc/rpc/rpc_common.h"
-#include "../libcli/smb/smbXcli_base.h"
+#include "libcli/composite/composite.h"
/* transport private information used by SMB pipe transport */
struct smb_private {
- uint16_t fnum;
- struct smbcli_tree *tree;
DATA_BLOB session_key;
- const char *server_name;
- bool dead;
-};
-
-
-/*
- tell the dcerpc layer that the transport is dead
-*/
-static void pipe_dead(struct dcecli_connection *c, NTSTATUS status)
-{
- struct smb_private *smb = (struct smb_private *)c->transport.private_data;
-
- if (smb->dead) {
- return;
- }
-
- smb->dead = true;
-
- if (NT_STATUS_EQUAL(NT_STATUS_UNSUCCESSFUL, status)) {
- status = NT_STATUS_UNEXPECTED_NETWORK_ERROR;
- }
-
- if (NT_STATUS_EQUAL(NT_STATUS_OK, status)) {
- status = NT_STATUS_END_OF_FILE;
- }
-
- if (c->transport.recv_data) {
- c->transport.recv_data(c, NULL, status);
- }
-}
-
-
-/*
- this holds the state of an in-flight call
-*/
-struct smb_read_state {
- struct dcecli_connection *c;
- struct smbcli_request *req;
- size_t received;
- DATA_BLOB data;
- union smb_read *io;
-};
-
-/*
- called when a read request has completed
-*/
-static void smb_read_callback(struct smbcli_request *req)
-{
- struct dcecli_connection *c;
- struct smb_private *smb;
- struct smb_read_state *state;
- union smb_read *io;
- uint16_t frag_length;
- NTSTATUS status;
-
- state = talloc_get_type(req->async.private_data, struct smb_read_state);
- smb = talloc_get_type(state->c->transport.private_data, struct smb_private);
- io = state->io;
- c = state->c;
-
- status = smb_raw_read_recv(state->req, io);
- if (NT_STATUS_IS_ERR(status)) {
- talloc_free(state);
- pipe_dead(c, status);
- return;
- }
-
- state->received += io->readx.out.nread;
-
- if (state->received < 16) {
- DEBUG(0,("dcerpc_smb: short packet (length %d) in read callback!\n",
- (int)state->received));
- talloc_free(state);
- pipe_dead(c, NT_STATUS_INFO_LENGTH_MISMATCH);
- return;
- }
-
- frag_length = dcerpc_get_frag_length(&state->data);
-
- if (frag_length <= state->received) {
- DATA_BLOB data = state->data;
- data.length = state->received;
- talloc_steal(state->c, data.data);
- talloc_free(state);
- c->transport.recv_data(c, &data, NT_STATUS_OK);
- return;
- }
-
- /* initiate another read request, as we only got part of a fragment */
- state->data.data = talloc_realloc(state, state->data.data, uint8_t, frag_length);
-
- io->readx.in.mincnt = MIN(state->c->srv_max_xmit_frag,
- frag_length - state->received);
- io->readx.in.maxcnt = io->readx.in.mincnt;
- io->readx.out.data = state->data.data + state->received;
-
- state->req = smb_raw_read_send(smb->tree, io);
- if (state->req == NULL) {
- talloc_free(state);
- pipe_dead(c, NT_STATUS_NO_MEMORY);
- return;
- }
-
- state->req->async.fn = smb_read_callback;
- state->req->async.private_data = state;
-}
-
-/*
- trigger a read request from the server, possibly with some initial
- data in the read buffer
-*/
-static NTSTATUS send_read_request_continue(struct dcecli_connection *c, DATA_BLOB *blob)
-{
- struct smb_private *smb = (struct smb_private *)c->transport.private_data;
- union smb_read *io;
- struct smb_read_state *state;
- struct smbcli_request *req;
-
- state = talloc(smb, struct smb_read_state);
- if (state == NULL) {
- return NT_STATUS_NO_MEMORY;
- }
-
- state->c = c;
- if (blob == NULL) {
- state->received = 0;
- state->data = data_blob_talloc(state, NULL, 0x2000);
- } else {
- uint32_t frag_length = blob->length>=16?
- dcerpc_get_frag_length(blob):0x2000;
- state->received = blob->length;
- state->data = data_blob_talloc(state, NULL, frag_length);
- if (!state->data.data) {
- talloc_free(state);
- return NT_STATUS_NO_MEMORY;
- }
- memcpy(state->data.data, blob->data, blob->length);
- }
-
- state->io = talloc(state, union smb_read);
-
- io = state->io;
- io->generic.level = RAW_READ_READX;
- io->readx.in.file.fnum = smb->fnum;
- io->readx.in.mincnt = state->data.length - state->received;
- io->readx.in.maxcnt = io->readx.in.mincnt;
- io->readx.in.offset = 0;
- io->readx.in.remaining = 0;
- io->readx.in.read_for_execute = false;
- io->readx.out.data = state->data.data + state->received;
- req = smb_raw_read_send(smb->tree, io);
- if (req == NULL) {
- return NT_STATUS_NO_MEMORY;
- }
-
- req->async.fn = smb_read_callback;
- req->async.private_data = state;
-
- state->req = req;
-
- return NT_STATUS_OK;
-}
-
-
-/*
- trigger a read request from the server
-*/
-static NTSTATUS send_read_request(struct dcecli_connection *c)
-{
- struct smb_private *smb = (struct smb_private *)c->transport.private_data;
-
- if (smb->dead) {
- return NT_STATUS_CONNECTION_DISCONNECTED;
- }
-
- return send_read_request_continue(c, NULL);
-}
-
-/*
- this holds the state of an in-flight trans call
-*/
-struct smb_trans_state {
- struct dcecli_connection *c;
- struct smbcli_request *req;
- struct smb_trans2 *trans;
};
-/*
- called when a trans request has completed
-*/
-static void smb_trans_callback(struct smbcli_request *req)
-{
- struct smb_trans_state *state = (struct smb_trans_state *)req->async.private_data;
- struct dcecli_connection *c = state->c;
- NTSTATUS status;
-
- status = smb_raw_trans_recv(req, state, state->trans);
-
- if (NT_STATUS_IS_ERR(status)) {
- pipe_dead(c, status);
- return;
- }
-
- if (!NT_STATUS_EQUAL(status, STATUS_BUFFER_OVERFLOW)) {
- DATA_BLOB data = state->trans->out.data;
- talloc_steal(c, data.data);
- talloc_free(state);
- c->transport.recv_data(c, &data, NT_STATUS_OK);
- return;
- }
-
- /* there is more to receive - setup a readx */
- send_read_request_continue(c, &state->trans->out.data);
- talloc_free(state);
-}
-
-/*
- send a SMBtrans style request
-*/
-static NTSTATUS smb_send_trans_request(struct dcecli_connection *c, DATA_BLOB *blob)
-{
- struct smb_private *smb = (struct smb_private *)c->transport.private_data;
- struct smb_trans2 *trans;
- uint16_t setup[2];
- struct smb_trans_state *state;
- uint16_t max_data;
-
- state = talloc(c, struct smb_trans_state);
- if (state == NULL) {
- return NT_STATUS_NO_MEMORY;
- }
-
- state->c = c;
- state->trans = talloc(state, struct smb_trans2);
- trans = state->trans;
-
- trans->in.data = *blob;
- trans->in.params = data_blob(NULL, 0);
-
- setup[0] = TRANSACT_DCERPCCMD;
- setup[1] = smb->fnum;
-
- if (c->srv_max_xmit_frag > 0) {
- max_data = MIN(UINT16_MAX, c->srv_max_xmit_frag);
- } else {
- max_data = UINT16_MAX;
- }
-
- trans->in.max_param = 0;
- trans->in.max_data = max_data;
- trans->in.max_setup = 0;
- trans->in.setup_count = 2;
- trans->in.flags = 0;
- trans->in.timeout = 0;
- trans->in.setup = setup;
- trans->in.trans_name = "\\PIPE\\";
-
- state->req = smb_raw_trans_send(smb->tree, trans);
- if (state->req == NULL) {
- talloc_free(state);
- return NT_STATUS_NO_MEMORY;
- }
-
- state->req->async.fn = smb_trans_callback;
- state->req->async.private_data = state;
-
- talloc_steal(state, state->req);
-
- return NT_STATUS_OK;
-}
-
-/*
- called when a write request has completed
-*/
-static void smb_write_callback(struct smbcli_request *req)
-{
- struct dcecli_connection *c = (struct dcecli_connection *)req->async.private_data;
- union smb_write io;
- NTSTATUS status;
-
- ZERO_STRUCT(io);
- io.generic.level = RAW_WRITE_WRITEX;
-
- status = smb_raw_write_recv(req, &io);
- if (!NT_STATUS_IS_OK(status)) {
- DEBUG(0,("dcerpc_smb: write callback error: %s\n",
- nt_errstr(status)));
- pipe_dead(c, status);
- }
-}
-
-/*
- send a packet to the server
-*/
-static NTSTATUS smb_send_request(struct dcecli_connection *c, DATA_BLOB *blob,
- bool trigger_read)
-{
- struct smb_private *smb = (struct smb_private *)c->transport.private_data;
- union smb_write io;
- struct smbcli_request *req;
-
- if (!smb || smb->dead) {
- return NT_STATUS_CONNECTION_DISCONNECTED;
- }
-
- if (trigger_read) {
- return smb_send_trans_request(c, blob);
- }
-
- io.generic.level = RAW_WRITE_WRITEX;
- io.writex.in.file.fnum = smb->fnum;
- io.writex.in.offset = 0;
- io.writex.in.wmode = PIPE_START_MESSAGE;
- io.writex.in.remaining = blob->length;
- io.writex.in.count = blob->length;
- io.writex.in.data = blob->data;
-
- /* we must not timeout at the smb level for rpc requests, as otherwise
- signing/sealing can be messed up */
- smb->tree->session->transport->options.request_timeout = 0;
-
- req = smb_raw_write_send(smb->tree, &io);
- if (req == NULL) {
- return NT_STATUS_NO_MEMORY;
- }
-
- req->async.fn = smb_write_callback;
- req->async.private_data = c;
-
- return NT_STATUS_OK;
-}
-
-
-static void free_request(struct smbcli_request *req)
-{
- talloc_free(req);
-}
-
-/*
- shutdown SMB pipe connection
-*/
-static NTSTATUS smb_shutdown_pipe(struct dcecli_connection *c, NTSTATUS status)
-{
- struct smb_private *smb = (struct smb_private *)c->transport.private_data;
- union smb_close io;
- struct smbcli_request *req;
-
- /* maybe we're still starting up */
- if (!smb) return status;
-
- io.close.level = RAW_CLOSE_CLOSE;
- io.close.in.file.fnum = smb->fnum;
- io.close.in.write_time = 0;
- req = smb_raw_close_send(smb->tree, &io);
- if (req != NULL) {
- /* we don't care if this fails, so just free it if it succeeds */
- req->async.fn = free_request;
- }
-
- talloc_free(smb);
- c->transport.private_data = NULL;
-
- return status;
-}
-
-/*
- return SMB server name (called name)
-*/
-static const char *smb_peer_name(struct dcecli_connection *c)
-{
- struct smb_private *smb = (struct smb_private *)c->transport.private_data;
- if (smb == NULL) return "";
- return smb->server_name;
-}
-
-/*
- return remote name we make the actual connection (good for kerberos)
-*/
-static const char *smb_target_hostname(struct dcecli_connection *c)
-{
- struct smb_private *smb = talloc_get_type(c->transport.private_data, struct smb_private);
- if (smb == NULL) return "";
- return smbXcli_conn_remote_name(smb->tree->session->transport->conn);
-}
-
/*
fetch the user session key
*/
static NTSTATUS smb_session_key(struct dcecli_connection *c, DATA_BLOB *session_key)
{
- struct smb_private *smb = (struct smb_private *)c->transport.private_data;
+ struct smb_private *smb = talloc_get_type_abort(
+ c->transport.private_data, struct smb_private);
if (smb == NULL) return NT_STATUS_CONNECTION_DISCONNECTED;
return NT_STATUS_OK;
}
-struct pipe_open_smb_state {
- union smb_open *open;
+struct dcerpc_pipe_open_smb_state {
struct dcecli_connection *c;
- struct smbcli_tree *tree;
struct composite_context *ctx;
+
+ const char *fname;
+
+ struct smb_private *smb;
};
-static void pipe_open_recv(struct smbcli_request *req);
+static void dcerpc_pipe_open_smb_done(struct tevent_req *subreq);
-struct composite_context *dcerpc_pipe_open_smb_send(struct dcerpc_pipe *p,
- struct smbcli_tree *tree,
- const char *pipe_name)
+struct composite_context *dcerpc_pipe_open_smb_send(struct dcecli_connection *c,
+ struct smbXcli_conn *conn,
+ struct smbXcli_session *session,
+ struct smbXcli_tcon *tcon,
+ uint32_t timeout_msec,
+ const char *pipe_name)
{
struct composite_context *ctx;
- struct pipe_open_smb_state *state;
- struct smbcli_request *req;
- struct dcecli_connection *c = p->conn;
-
- /* if we don't have a binding on this pipe yet, then create one */
- if (p->binding == NULL) {
- NTSTATUS status;
- const char *r = smbXcli_conn_remote_name(tree->session->transport->conn);
- char *s;
- SMB_ASSERT(r != NULL);
- s = talloc_asprintf(p, "ncacn_np:%s", r);
- if (s == NULL) return NULL;
- status = dcerpc_parse_binding(p, s, &p->binding);
- talloc_free(s);
- if (!NT_STATUS_IS_OK(status)) {
- return NULL;
- }
- }
+ struct dcerpc_pipe_open_smb_state *state;
+ uint16_t pid = 0;
+ struct tevent_req *subreq;
ctx = composite_create(c, c->event_ctx);
if (ctx == NULL) return NULL;
- state = talloc(ctx, struct pipe_open_smb_state);
+ state = talloc(ctx, struct dcerpc_pipe_open_smb_state);
if (composite_nomem(state, ctx)) return ctx;
ctx->private_data = state;
state->c = c;
- state->tree = tree;
state->ctx = ctx;
- state->open = talloc(state, union smb_open);
- if (composite_nomem(state->open, ctx)) return ctx;
-
- state->open->ntcreatex.level = RAW_OPEN_NTCREATEX;
- state->open->ntcreatex.in.flags = 0;
- state->open->ntcreatex.in.root_fid.fnum = 0;
- state->open->ntcreatex.in.access_mask =
- SEC_STD_READ_CONTROL |
- SEC_FILE_WRITE_ATTRIBUTE |
- SEC_FILE_WRITE_EA |
- SEC_FILE_READ_DATA |
- SEC_FILE_WRITE_DATA;
- state->open->ntcreatex.in.file_attr = 0;
- state->open->ntcreatex.in.alloc_size = 0;
- state->open->ntcreatex.in.share_access =
- NTCREATEX_SHARE_ACCESS_READ |
- NTCREATEX_SHARE_ACCESS_WRITE;
- state->open->ntcreatex.in.open_disposition = NTCREATEX_DISP_OPEN;
- state->open->ntcreatex.in.create_options = 0;
- state->open->ntcreatex.in.impersonation =
- NTCREATEX_IMPERSONATION_IMPERSONATION;
- state->open->ntcreatex.in.security_flags = 0;
-
if ((strncasecmp(pipe_name, "/pipe/", 6) == 0) ||
(strncasecmp(pipe_name, "\\pipe\\", 6) == 0)) {
pipe_name += 6;
}
- state->open->ntcreatex.in.fname =
- (pipe_name[0] == '\\') ?
- talloc_strdup(state->open, pipe_name) :
- talloc_asprintf(state->open, "\\%s", pipe_name);
- if (composite_nomem(state->open->ntcreatex.in.fname, ctx)) return ctx;
+ if ((strncasecmp(pipe_name, "/", 1) == 0) ||
+ (strncasecmp(pipe_name, "\\", 1) == 0)) {
+ pipe_name += 1;
+ }
+ state->fname = talloc_strdup(state, pipe_name);
+ if (composite_nomem(state->fname, ctx)) return ctx;
+
+ state->smb = talloc_zero(state, struct smb_private);
+ if (composite_nomem(state->smb, ctx)) return ctx;
+
+ state->c->server_name = strupper_talloc(state->c,
+ smbXcli_conn_remote_name(conn));
+ if (composite_nomem(state->c->server_name, ctx)) return ctx;
+
+ ctx->status = smbXcli_session_application_key(session,
+ state->smb,
+ &state->smb->session_key);
+ if (NT_STATUS_EQUAL(ctx->status, NT_STATUS_NO_USER_SESSION_KEY)) {
+ state->smb->session_key = data_blob_null;
+ ctx->status = NT_STATUS_OK;
+ }
+ if (!composite_is_ok(ctx)) return ctx;
+
+ subreq = tstream_smbXcli_np_open_send(state, c->event_ctx,
+ conn, session, tcon, pid,
+ timeout_msec, state->fname);
+ if (composite_nomem(subreq, ctx)) return ctx;
+ tevent_req_set_callback(subreq, dcerpc_pipe_open_smb_done, state);
- req = smb_raw_open_send(tree, state->open);
- composite_continue_smb(ctx, req, pipe_open_recv, state);
return ctx;
}
-static void pipe_open_recv(struct smbcli_request *req)
+static void dcerpc_pipe_open_smb_done(struct tevent_req *subreq)
{
- struct pipe_open_smb_state *state = talloc_get_type(req->async.private_data,
- struct pipe_open_smb_state);
+ struct dcerpc_pipe_open_smb_state *state =
+ tevent_req_callback_data(subreq,
+ struct dcerpc_pipe_open_smb_state);
struct composite_context *ctx = state->ctx;
struct dcecli_connection *c = state->c;
- struct smb_private *smb;
-
- ctx->status = smb_raw_open_recv(req, state, state->open);
+
+ ctx->status = tstream_smbXcli_np_open_recv(subreq,
+ state->smb,
+ &state->c->transport.stream);
+ TALLOC_FREE(subreq);
if (!composite_is_ok(ctx)) return;
+ state->c->transport.write_queue =
+ tevent_queue_create(state->c, "dcerpc_smb write queue");
+ if (composite_nomem(state->c->transport.write_queue, ctx)) return;
+
/*
fill in the transport methods
*/
c->transport.transport = NCACN_NP;
c->transport.private_data = NULL;
- c->transport.shutdown_pipe = smb_shutdown_pipe;
- c->transport.peer_name = smb_peer_name;
- c->transport.target_hostname = smb_target_hostname;
- c->transport.send_request = smb_send_request;
- c->transport.send_read = send_read_request;
- c->transport.recv_data = NULL;
-
+ /*
+ * Windows uses 4280 for ncacn_np,
+ * so we also use it, this is what our
+ * tstream_smbXcli_np code relies on.
+ */
+ c->srv_max_xmit_frag = 4280;
+ c->srv_max_recv_frag = 4280;
+
/* Over-ride the default session key with the SMB session key */
c->security_state.session_key = smb_session_key;
- smb = talloc(c, struct smb_private);
- if (composite_nomem(smb, ctx)) return;
-
- smb->fnum = state->open->ntcreatex.out.file.fnum;
- smb->tree = talloc_reference(smb, state->tree);
- smb->server_name= strupper_talloc(smb,
- smbXcli_conn_remote_name(state->tree->session->transport->conn));
- if (composite_nomem(smb->server_name, ctx)) return;
- smb->dead = false;
-
- ctx->status = smbXcli_session_application_key(state->tree->session->smbXcli,
- smb, &smb->session_key);
- if (NT_STATUS_EQUAL(ctx->status, NT_STATUS_NO_USER_SESSION_KEY)) {
- smb->session_key = data_blob_null;
- ctx->status = NT_STATUS_OK;
- }
- if (!composite_is_ok(ctx)) return;
-
- c->transport.private_data = smb;
+ c->transport.private_data = talloc_move(c, &state->smb);
composite_done(ctx);
}
talloc_free(c);
return status;
}
-
-_PUBLIC_ NTSTATUS dcerpc_pipe_open_smb(struct dcerpc_pipe *p,
- struct smbcli_tree *tree,
- const char *pipe_name)
-{
- struct composite_context *ctx = dcerpc_pipe_open_smb_send(p, tree,
- pipe_name);
- return dcerpc_pipe_open_smb_recv(ctx);
-}
-
-/*
- return the SMB tree used for a dcerpc over SMB pipe
-*/
-_PUBLIC_ struct smbcli_tree *dcerpc_smb_tree(struct dcecli_connection *c)
-{
- struct smb_private *smb;
-
- if (c->transport.transport != NCACN_NP) return NULL;
-
- smb = talloc_get_type(c->transport.private_data, struct smb_private);
- if (!smb) return NULL;
-
- return smb->tree;
-}
-
-struct composite_context *dcerpc_secondary_smb_send(struct dcecli_connection *c1,
- struct dcerpc_pipe *p2,
- const char *pipe_name)
-{
- struct smb_private *smb;
-
- if (c1->transport.transport != NCACN_NP) return NULL;
-
- smb = talloc_get_type(c1->transport.private_data, struct smb_private);
- if (!smb) return NULL;
-
- return dcerpc_pipe_open_smb_send(p2, smb->tree, pipe_name);
-}
-
-NTSTATUS dcerpc_secondary_smb_recv(struct composite_context *c)
-{
- return dcerpc_pipe_open_smb_recv(c);
-}
git.samba.org / metze / samba / wip.git / blobdiff