*/
#include "includes.h"
+#include "libcli/raw/libcliraw.h"
+#include "libcli/composite/composite.h"
/* transport private information used by SMB pipe transport */
struct smb_private {
uint16_t fnum;
struct smbcli_tree *tree;
+ const char *server_name;
};
/*
tell the dcerpc layer that the transport is dead
*/
-static void pipe_dead(struct dcerpc_pipe *p, NTSTATUS status)
+static void pipe_dead(struct dcerpc_connection *c, NTSTATUS status)
{
- p->transport.recv_data(p, NULL, status);
+ c->transport.recv_data(c, NULL, status);
}
this holds the state of an in-flight call
*/
struct smb_read_state {
- struct dcerpc_pipe *p;
+ struct dcerpc_connection *c;
struct smbcli_request *req;
size_t received;
DATA_BLOB data;
uint16_t frag_length;
NTSTATUS status;
- state = req->async.private;
- smb = state->p->transport.private;
+ state = talloc_get_type(req->async.private, struct smb_read_state);
+ smb = talloc_get_type(state->c->transport.private, struct smb_private);
io = state->io;
status = smb_raw_read_recv(state->req, io);
if (NT_STATUS_IS_ERR(status)) {
- pipe_dead(state->p, status);
+ pipe_dead(state->c, status);
talloc_free(state);
return;
}
if (state->received < 16) {
DEBUG(0,("dcerpc_smb: short packet (length %d) in read callback!\n",
- state->received));
- pipe_dead(state->p, NT_STATUS_INFO_LENGTH_MISMATCH);
+ (int)state->received));
+ pipe_dead(state->c, NT_STATUS_INFO_LENGTH_MISMATCH);
talloc_free(state);
return;
}
frag_length = dcerpc_get_frag_length(&state->data);
if (frag_length <= state->received) {
- state->data.length = state->received;
- state->p->transport.recv_data(state->p, &state->data, NT_STATUS_OK);
+ DATA_BLOB data = state->data;
+ struct dcerpc_connection *c = state->c;
+ 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->data.data, frag_length);
+ state->data.data = talloc_realloc(state, state->data.data, uint8_t, frag_length);
- io->readx.in.mincnt = MIN(state->p->srv_max_xmit_frag,
+ 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) {
- pipe_dead(state->p, NT_STATUS_NO_MEMORY);
+ pipe_dead(state->c, NT_STATUS_NO_MEMORY);
talloc_free(state);
return;
}
trigger a read request from the server, possibly with some initial
data in the read buffer
*/
-static NTSTATUS send_read_request_continue(struct dcerpc_pipe *p, DATA_BLOB *blob)
+static NTSTATUS send_read_request_continue(struct dcerpc_connection *c, DATA_BLOB *blob)
{
- struct smb_private *smb = p->transport.private;
+ struct smb_private *smb = c->transport.private;
union smb_read *io;
struct smb_read_state *state;
struct smbcli_request *req;
- state = talloc_p(smb, struct smb_read_state);
+ state = talloc(smb, struct smb_read_state);
if (state == NULL) {
return NT_STATUS_NO_MEMORY;
}
- state->p = p;
+ state->c = c;
if (blob == NULL) {
state->received = 0;
state->data = data_blob_talloc(state, NULL, 0x2000);
memcpy(state->data.data, blob->data, blob->length);
}
- state->io = talloc_p(state, union smb_read);
+ state->io = talloc(state, union smb_read);
io = state->io;
io->generic.level = RAW_READ_READX;
/*
trigger a read request from the server
*/
-static NTSTATUS send_read_request(struct dcerpc_pipe *p)
+static NTSTATUS send_read_request(struct dcerpc_connection *c)
{
- return send_read_request_continue(p, NULL);
+ return send_read_request_continue(c, NULL);
}
/*
this holds the state of an in-flight trans call
*/
struct smb_trans_state {
- struct dcerpc_pipe *p;
+ struct dcerpc_connection *c;
struct smbcli_request *req;
struct smb_trans2 *trans;
};
static void smb_trans_callback(struct smbcli_request *req)
{
struct smb_trans_state *state = req->async.private;
- struct dcerpc_pipe *p = state->p;
+ struct dcerpc_connection *c = state->c;
NTSTATUS status;
status = smb_raw_trans_recv(req, state, state->trans);
if (NT_STATUS_IS_ERR(status)) {
- pipe_dead(p, status);
+ pipe_dead(c, status);
return;
}
if (!NT_STATUS_EQUAL(status, STATUS_BUFFER_OVERFLOW)) {
- p->transport.recv_data(p, &state->trans->out.data, NT_STATUS_OK);
+ 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(p, &state->trans->out.data);
+ send_read_request_continue(c, &state->trans->out.data);
talloc_free(state);
}
/*
send a SMBtrans style request
*/
-static NTSTATUS smb_send_trans_request(struct dcerpc_pipe *p, DATA_BLOB *blob)
+static NTSTATUS smb_send_trans_request(struct dcerpc_connection *c, DATA_BLOB *blob)
{
- struct smb_private *smb = p->transport.private;
+ struct smb_private *smb = c->transport.private;
struct smb_trans2 *trans;
- uint16 setup[2];
+ uint16_t setup[2];
struct smb_trans_state *state;
- state = talloc_p(smb, struct smb_trans_state);
+ state = talloc(smb, struct smb_trans_state);
if (state == NULL) {
return NT_STATUS_NO_MEMORY;
}
- state->p = p;
- state->trans = talloc_p(state, struct smb_trans2);
+ state->c = c;
+ state->trans = talloc(state, struct smb_trans2);
trans = state->trans;
trans->in.data = *blob;
setup[1] = smb->fnum;
trans->in.max_param = 0;
- trans->in.max_data = 0x8000;
+ trans->in.max_data = smb_raw_max_trans_data(smb->tree, 0);
trans->in.max_setup = 0;
trans->in.setup_count = 2;
trans->in.flags = 0;
state->req->async.fn = smb_trans_callback;
state->req->async.private = state;
+ talloc_steal(state, state->req);
+
return NT_STATUS_OK;
}
*/
static void smb_write_callback(struct smbcli_request *req)
{
- struct dcerpc_pipe *p = req->async.private;
+ struct dcerpc_connection *c = req->async.private;
if (!NT_STATUS_IS_OK(req->status)) {
DEBUG(0,("dcerpc_smb: write callback error\n"));
- pipe_dead(p, req->status);
+ pipe_dead(c, req->status);
}
smbcli_request_destroy(req);
/*
send a packet to the server
*/
-static NTSTATUS smb_send_request(struct dcerpc_pipe *p, DATA_BLOB *blob, BOOL trigger_read)
+static NTSTATUS smb_send_request(struct dcerpc_connection *c, DATA_BLOB *blob, BOOL trigger_read)
{
- struct smb_private *smb = p->transport.private;
+ struct smb_private *smb = c->transport.private;
union smb_write io;
struct smbcli_request *req;
if (trigger_read) {
- return smb_send_trans_request(p, blob);
+ return smb_send_trans_request(c, blob);
}
io.generic.level = RAW_WRITE_WRITEX;
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 = p;
+ req->async.private = c;
if (trigger_read) {
- send_read_request(p);
+ send_read_request(c);
}
return NT_STATUS_OK;
}
-/*
- return the event context for the pipe, so the caller can wait
- for events asynchronously
-*/
-static struct event_context *smb_event_context(struct dcerpc_pipe *p)
-{
- struct smb_private *smb = p->transport.private;
-
- return smb->tree->session->transport->event.ctx;
-}
-
-
/*
shutdown SMB pipe connection
*/
-static NTSTATUS smb_shutdown_pipe(struct dcerpc_pipe *p)
+static NTSTATUS smb_shutdown_pipe(struct dcerpc_connection *c)
{
- struct smb_private *smb = p->transport.private;
- union smb_close c;
+ struct smb_private *smb = c->transport.private;
+ union smb_close io;
+ struct smbcli_request *req;
/* maybe we're still starting up */
if (!smb) return NT_STATUS_OK;
- c.close.level = RAW_CLOSE_CLOSE;
- c.close.in.fnum = smb->fnum;
- c.close.in.write_time = 0;
- smb_raw_close(smb->tree, &c);
- smbcli_tree_close(smb->tree);
+ io.close.level = RAW_CLOSE_CLOSE;
+ io.close.in.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 = (void (*)(struct smbcli_request *))talloc_free;
+ }
+
+ talloc_free(smb);
return NT_STATUS_OK;
}
/*
return SMB server name
*/
-static const char *smb_peer_name(struct dcerpc_pipe *p)
+static const char *smb_peer_name(struct dcerpc_connection *c)
{
- struct smb_private *smb = p->transport.private;
- return smb->tree->session->transport->called.name;
+ struct smb_private *smb = c->transport.private;
+ return smb->server_name;
}
-/*
- open a rpc connection to a named pipe
+/*
+ fetch the user session key
*/
-NTSTATUS dcerpc_pipe_open_smb(struct dcerpc_pipe **p,
- struct smbcli_tree *tree,
- const char *pipe_name)
+static NTSTATUS smb_session_key(struct dcerpc_connection *c, DATA_BLOB *session_key)
{
- struct smb_private *smb;
- NTSTATUS status;
- char *name = NULL;
- union smb_open io;
- TALLOC_CTX *mem_ctx;
+ struct smb_private *smb = c->transport.private;
- asprintf(&name, "\\%s", pipe_name);
- if (!name) {
- return NT_STATUS_NO_MEMORY;
+ if (smb->tree->session->user_session_key.data) {
+ *session_key = smb->tree->session->user_session_key;
+ return NT_STATUS_OK;
}
+ return NT_STATUS_NO_USER_SESSION_KEY;
+}
- io.ntcreatex.level = RAW_OPEN_NTCREATEX;
- io.ntcreatex.in.flags = 0;
- io.ntcreatex.in.root_fid = 0;
- io.ntcreatex.in.access_mask =
- STD_RIGHT_READ_CONTROL_ACCESS |
- SA_RIGHT_FILE_WRITE_ATTRIBUTES |
- SA_RIGHT_FILE_WRITE_EA |
- GENERIC_RIGHTS_FILE_READ |
- GENERIC_RIGHTS_FILE_WRITE;
- io.ntcreatex.in.file_attr = 0;
- io.ntcreatex.in.alloc_size = 0;
- io.ntcreatex.in.share_access =
+struct pipe_open_smb_state {
+ union smb_open *open;
+ struct dcerpc_connection *c;
+ struct smbcli_request *req;
+ struct smbcli_tree *tree;
+ struct composite_context *ctx;
+};
+
+static void pipe_open_recv(struct smbcli_request *req);
+
+struct composite_context *dcerpc_pipe_open_smb_send(struct dcerpc_connection *c,
+ struct smbcli_tree *tree,
+ const char *pipe_name)
+{
+ struct composite_context *ctx;
+ struct pipe_open_smb_state *state;
+
+ ctx = talloc_zero(NULL, struct composite_context);
+ if (ctx == NULL) goto failed;
+ ctx->state = COMPOSITE_STATE_IN_PROGRESS;
+ ctx->event_ctx = talloc_reference(c, c->event_ctx);
+
+ state = talloc(ctx, struct pipe_open_smb_state);
+ if (state == NULL) goto failed;
+
+ state->c = c;
+ state->tree = tree;
+ state->ctx = ctx;
+
+ state->open = talloc(state, union smb_open);
+ if (state->open == NULL) goto failed;
+
+ state->open->ntcreatex.level = RAW_OPEN_NTCREATEX;
+ state->open->ntcreatex.in.flags = 0;
+ state->open->ntcreatex.in.root_fid = 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;
- io.ntcreatex.in.open_disposition = NTCREATEX_DISP_OPEN;
- io.ntcreatex.in.create_options = 0;
- io.ntcreatex.in.impersonation = NTCREATEX_IMPERSONATION_IMPERSONATION;
- io.ntcreatex.in.security_flags = 0;
- io.ntcreatex.in.fname = name;
-
- mem_ctx = talloc_init("torture_rpc_connection");
- if (!mem_ctx) {
- free(name);
- return NT_STATUS_NO_MEMORY;
+ 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;
}
- status = smb_raw_open(tree, mem_ctx, &io);
- free(name);
- talloc_free(mem_ctx);
+ state->open->ntcreatex.in.fname =
+ (pipe_name[0] == '\\') ?
+ talloc_strdup(state->open, pipe_name) :
+ talloc_asprintf(state->open, "\\%s", pipe_name);
+ if (state->open->ntcreatex.in.fname == NULL) goto failed;
- if (!NT_STATUS_IS_OK(status)) {
- return status;
- }
+ state->req = smb_raw_open_send(tree, state->open);
+ if (state->req == NULL) goto failed;
+
+ state->req->async.fn = pipe_open_recv;
+ state->req->async.private = state;
+
+ return ctx;
+
+ failed:
+ talloc_free(ctx);
+ return NULL;
+}
+
+static void pipe_open_recv(struct smbcli_request *req)
+{
+ struct pipe_open_smb_state *state =
+ talloc_get_type(req->async.private,
+ struct pipe_open_smb_state);
+ struct composite_context *ctx = state->ctx;
+ struct dcerpc_connection *c = state->c;
+ struct smb_private *smb;
+
+ ctx->status = smb_raw_open_recv(req, state, state->open);
+ if (!NT_STATUS_IS_OK(ctx->status)) goto done;
- if (!(*p = dcerpc_pipe_init())) {
- return NT_STATUS_NO_MEMORY;
- }
-
/*
fill in the transport methods
*/
- (*p)->transport.transport = NCACN_NP;
- (*p)->transport.private = NULL;
- (*p)->transport.shutdown_pipe = smb_shutdown_pipe;
- (*p)->transport.peer_name = smb_peer_name;
-
- (*p)->transport.send_request = smb_send_request;
- (*p)->transport.send_read = send_read_request;
- (*p)->transport.event_context = smb_event_context;
- (*p)->transport.recv_data = NULL;
+ c->transport.transport = NCACN_NP;
+ c->transport.private = NULL;
+ c->transport.shutdown_pipe = smb_shutdown_pipe;
+ c->transport.peer_name = smb_peer_name;
+
+ c->transport.send_request = smb_send_request;
+ c->transport.send_read = send_read_request;
+ c->transport.recv_data = NULL;
- smb = talloc((*p), sizeof(*smb));
- if (!smb) {
- dcerpc_pipe_close(*p);
- return NT_STATUS_NO_MEMORY;
+ /* 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 (smb == NULL) {
+ ctx->status = NT_STATUS_NO_MEMORY;
+ goto done;
}
- smb->fnum = io.ntcreatex.out.fnum;
- smb->tree = tree;
+ smb->fnum = state->open->ntcreatex.out.fnum;
+ smb->tree = talloc_reference(smb, state->tree);
+ smb->server_name= strupper_talloc(
+ smb, state->tree->session->transport->called.name);
+ if (smb->server_name == NULL) {
+ ctx->status = NT_STATUS_NO_MEMORY;
+ goto done;
+ }
+ c->transport.private = smb;
- (*p)->transport.private = smb;
- tree->reference_count++;
+ ctx->status = NT_STATUS_OK;
+ ctx->state = COMPOSITE_STATE_DONE;
- return NT_STATUS_OK;
+ done:
+ if (!NT_STATUS_IS_OK(ctx->status)) {
+ ctx->state = COMPOSITE_STATE_ERROR;
+ }
+ if ((ctx->state >= COMPOSITE_STATE_DONE) &&
+ (ctx->async.fn != NULL)) {
+ ctx->async.fn(ctx);
+ }
+}
+
+NTSTATUS dcerpc_pipe_open_smb_recv(struct composite_context *c)
+{
+ NTSTATUS status = composite_wait(c);
+ talloc_free(c);
+ return status;
+}
+
+NTSTATUS dcerpc_pipe_open_smb(struct dcerpc_connection *c,
+ struct smbcli_tree *tree,
+ const char *pipe_name)
+{
+ struct composite_context *ctx = dcerpc_pipe_open_smb_send(c, tree,
+ pipe_name);
+ return dcerpc_pipe_open_smb_recv(ctx);
}
/*
return the SMB tree used for a dcerpc over SMB pipe
*/
-struct smbcli_tree *dcerpc_smb_tree(struct dcerpc_pipe *p)
+struct smbcli_tree *dcerpc_smb_tree(struct dcerpc_connection *c)
{
- struct smb_private *smb = p->transport.private;
+ struct smb_private *smb = c->transport.private;
- if (p->transport.transport != NCACN_NP) {
+ if (c->transport.transport != NCACN_NP) {
return NULL;
}
git.samba.org / abartlet / samba.git / .git / blobdiff