*/
#include "includes.h"
-#include "../librpc/gen_ndr/srv_spoolss.h"
-#include "librpc/gen_ndr/ndr_named_pipe_auth.h"
-#include "../libcli/named_pipe_auth/npa_tstream.h"
+#include "fake_file.h"
+#include "rpc_dce.h"
+#include "ntdomain.h"
+#include "rpc_server/rpc_ncacn_np.h"
+#include "rpc_server/srv_pipe_hnd.h"
+#include "rpc_server/srv_pipe.h"
+#include "rpc_server/rpc_server.h"
+#include "rpc_server/rpc_config.h"
+#include "../lib/tsocket/tsocket.h"
+#include "../lib/util/tevent_ntstatus.h"
+#include "librpc/ndr/ndr_table.h"
#undef DBGC_CLASS
#define DBGC_CLASS DBGC_RPC_SRV
-/****************************************************************************
- Initialise an outgoing packet.
-****************************************************************************/
-
-static bool pipe_init_outgoing_data(pipes_struct *p)
-{
- output_data *o_data = &p->out_data;
-
- /* Reset the offset counters. */
- o_data->data_sent_length = 0;
- o_data->current_pdu_sent = 0;
-
- prs_mem_free(&o_data->frag);
-
- /* Free any memory in the current return data buffer. */
- prs_mem_free(&o_data->rdata);
-
- /*
- * Initialize the outgoing RPC data buffer.
- * we will use this as the raw data area for replying to rpc requests.
- */
- if(!prs_init(&o_data->rdata, 128, p->mem_ctx, MARSHALL)) {
- DEBUG(0,("pipe_init_outgoing_data: malloc fail.\n"));
- return False;
- }
-
- return True;
-}
-
-/****************************************************************************
- Sets the fault state on incoming packets.
-****************************************************************************/
-
-static void set_incoming_fault(pipes_struct *p)
-{
- prs_mem_free(&p->in_data.data);
- p->in_data.pdu_needed_len = 0;
- p->in_data.pdu.length = 0;
- p->fault_state = True;
- DEBUG(10, ("set_incoming_fault: Setting fault state on pipe %s\n",
- get_pipe_name_from_syntax(talloc_tos(), &p->syntax)));
-}
-
-/****************************************************************************
- Ensures we have at least RPC_HEADER_LEN amount of data in the incoming buffer.
-****************************************************************************/
-
-static ssize_t fill_rpc_header(pipes_struct *p, char *data, size_t data_to_copy)
-{
- size_t len_needed_to_complete_hdr =
- MIN(data_to_copy, RPC_HEADER_LEN - p->in_data.pdu.length);
-
- DEBUG(10, ("fill_rpc_header: data_to_copy = %u, "
- "len_needed_to_complete_hdr = %u, "
- "receive_len = %u\n",
- (unsigned int)data_to_copy,
- (unsigned int)len_needed_to_complete_hdr,
- (unsigned int)p->in_data.pdu.length ));
-
- if (p->in_data.pdu.data == NULL) {
- p->in_data.pdu.data = talloc_array(p, uint8_t, RPC_HEADER_LEN);
- }
- if (p->in_data.pdu.data == NULL) {
- DEBUG(0, ("talloc failed\n"));
- return -1;
- }
-
- memcpy((char *)&p->in_data.pdu.data[p->in_data.pdu.length],
- data, len_needed_to_complete_hdr);
- p->in_data.pdu.length += len_needed_to_complete_hdr;
-
- return (ssize_t)len_needed_to_complete_hdr;
-}
-
-static bool get_pdu_size(pipes_struct *p)
-{
- uint16_t frag_len;
- /* the fill_rpc_header() call insures we copy only
- * RPC_HEADER_LEN bytes. If this doesn't match then
- * somethign is very wrong and we can only abort */
- if (p->in_data.pdu.length != RPC_HEADER_LEN) {
- DEBUG(0, ("Unexpected RPC Header size! "
- "got %d, expected %d)\n",
- (int)p->in_data.pdu.length,
- RPC_HEADER_LEN));
- set_incoming_fault(p);
- return false;
- }
-
- frag_len = dcerpc_get_frag_length(&p->in_data.pdu);
-
- /* verify it is a reasonable value */
- if ((frag_len < RPC_HEADER_LEN) ||
- (frag_len > RPC_MAX_PDU_FRAG_LEN)) {
- DEBUG(0, ("Unexpected RPC Fragment size! (%d)\n",
- frag_len));
- set_incoming_fault(p);
- return false;
- }
-
- p->in_data.pdu_needed_len = frag_len - RPC_HEADER_LEN;
-
- /* allocate the space needed to fill the pdu */
- p->in_data.pdu.data = talloc_realloc(p, p->in_data.pdu.data,
- uint8_t, frag_len);
- if (p->in_data.pdu.data == NULL) {
- DEBUG(0, ("talloc_realloc failed\n"));
- set_incoming_fault(p);
- return false;
- }
-
- return true;
-}
-
-/****************************************************************************
- Unmarshalls a new PDU header. Assumes the raw header data is in current pdu.
-****************************************************************************/
-
-static bool unmarshall_rpc_header(pipes_struct *p)
-{
- /*
- * Unmarshall the header to determine the needed length.
- */
-
- prs_struct rpc_in;
-
- prs_init_empty( &rpc_in, p->mem_ctx, UNMARSHALL);
- prs_set_endian_data( &rpc_in, p->endian);
-
- prs_give_memory( &rpc_in, (char *)&p->in_data.pdu.data[0],
- p->in_data.pdu.length, False);
-
- /*
- * Unmarshall the header.
- * This also sets the endian flag in rpc_in.
- */
-
- if(!smb_io_rpc_hdr("", &p->hdr, &rpc_in, 0)) {
- DEBUG(0, ("unmarshall_rpc_header: "
- "failed to unmarshall RPC_HDR.\n"));
- set_incoming_fault(p);
- prs_mem_free(&rpc_in);
- return false;
- }
-
- /*
- * Validate the RPC header.
- */
-
- if(p->hdr.major != 5 && p->hdr.minor != 0) {
- DEBUG(0, ("unmarshall_rpc_header: "
- "invalid major/minor numbers in RPC_HDR.\n"));
- set_incoming_fault(p);
- prs_mem_free(&rpc_in);
- return false;
- }
-
- /*
- * If there's not data in the incoming buffer this should be the
- * start of a new RPC.
- */
-
- if(prs_offset(&p->in_data.data) == 0) {
-
- /*
- * AS/U doesn't set FIRST flag in a BIND packet it seems.
- */
-
- if ((p->hdr.pkt_type == DCERPC_PKT_REQUEST) &&
- !(p->hdr.flags & DCERPC_PFC_FLAG_FIRST)) {
- /*
- * Ensure that the FIRST flag is set.
- * If not then we have a stream missmatch.
- */
-
- DEBUG(0, ("unmarshall_rpc_header: "
- "FIRST flag not set in first PDU !\n"));
- set_incoming_fault(p);
- prs_mem_free(&rpc_in);
- return false;
- }
-
- /*
- * If this is the first PDU then set the endianness
- * flag in the pipe. We will need this when parsing all
- * data in this RPC.
- */
-
- p->endian = rpc_in.bigendian_data;
-
- DEBUG(5, ("unmarshall_rpc_header: using %sendian RPC\n",
- p->endian == RPC_LITTLE_ENDIAN ? "little-" : "big-" ));
-
- } else {
-
- /*
- * If this is *NOT* the first PDU then check the endianness
- * flag in the pipe is the same as that in the PDU.
- */
-
- if (p->endian != rpc_in.bigendian_data) {
- DEBUG(0, ("unmarshall_rpc_header: FIRST endianness "
- "flag (%d) different in next PDU !\n",
- (int)p->endian));
- set_incoming_fault(p);
- prs_mem_free(&rpc_in);
- return false;
- }
- }
-
- DEBUG(10, ("unmarshall_rpc_header: type = %u, flags = %u\n",
- (unsigned int)p->hdr.pkt_type, (unsigned int)p->hdr.flags));
- return true;
-}
-
-/****************************************************************************
- Call this to free any talloc'ed memory. Do this after processing
- a complete incoming and outgoing request (multiple incoming/outgoing
- PDU's).
-****************************************************************************/
-
-static void free_pipe_context(pipes_struct *p)
-{
- prs_mem_free(&p->out_data.frag);
- prs_mem_free(&p->out_data.rdata);
- prs_mem_free(&p->in_data.data);
-
- DEBUG(3, ("free_pipe_context: "
- "destroying talloc pool of size %lu\n",
- (unsigned long)talloc_total_size(p->mem_ctx)));
- talloc_free_children(p->mem_ctx);
- /*
- * Re-initialize to set back to marshalling and set the
- * offset back to the start of the buffer.
- */
- if(!prs_init(&p->in_data.data, 128, p->mem_ctx, MARSHALL)) {
- DEBUG(0, ("free_pipe_context: "
- "rps_init failed!\n"));
- p->fault_state = True;
- }
-}
-
-/****************************************************************************
- Processes a request pdu. This will do auth processing if needed, and
- appends the data into the complete stream if the LAST flag is not set.
-****************************************************************************/
-
-static bool process_request_pdu(pipes_struct *p, prs_struct *rpc_in_p)
-{
- uint32 ss_padding_len = 0;
- size_t data_len = p->hdr.frag_len
- - RPC_HEADER_LEN
- - RPC_HDR_REQ_LEN
- - (p->hdr.auth_len ? RPC_HDR_AUTH_LEN : 0)
- - p->hdr.auth_len;
-
- if(!p->pipe_bound) {
- DEBUG(0,("process_request_pdu: rpc request with no bind.\n"));
- set_incoming_fault(p);
- return False;
- }
-
- /*
- * Check if we need to do authentication processing.
- * This is only done on requests, not binds.
- */
-
- /*
- * Read the RPC request header.
- */
-
- if(!smb_io_rpc_hdr_req("req", &p->hdr_req, rpc_in_p, 0)) {
- DEBUG(0,("process_request_pdu: failed to unmarshall RPC_HDR_REQ.\n"));
- set_incoming_fault(p);
- return False;
- }
-
- switch(p->auth.auth_type) {
- case PIPE_AUTH_TYPE_NONE:
- break;
-
- case PIPE_AUTH_TYPE_SPNEGO_NTLMSSP:
- case PIPE_AUTH_TYPE_NTLMSSP:
- {
- NTSTATUS status;
- if (!api_pipe_ntlmssp_auth_process(p, rpc_in_p,
- &ss_padding_len,
- &status)) {
- DEBUG(0, ("process_request_pdu: "
- "failed to do auth processing.\n"));
- DEBUG(0, ("process_request_pdu: error is %s\n",
- nt_errstr(status)));
- set_incoming_fault(p);
- return False;
- }
- break;
- }
-
- case PIPE_AUTH_TYPE_SCHANNEL:
- if (!api_pipe_schannel_process(p, rpc_in_p,
- &ss_padding_len)) {
- DEBUG(3, ("process_request_pdu: "
- "failed to do schannel processing.\n"));
- set_incoming_fault(p);
- return False;
- }
- break;
-
- default:
- DEBUG(0, ("process_request_pdu: "
- "unknown auth type %u set.\n",
- (unsigned int)p->auth.auth_type));
- set_incoming_fault(p);
- return False;
- }
-
- /* Now we've done the sign/seal we can remove any padding data. */
- if (data_len > ss_padding_len) {
- data_len -= ss_padding_len;
- }
-
- /*
- * Check the data length doesn't go over the 15Mb limit.
- * increased after observing a bug in the Windows NT 4.0 SP6a
- * spoolsv.exe when the response to a GETPRINTERDRIVER2 RPC
- * will not fit in the initial buffer of size 0x1068 --jerry 22/01/2002
- */
-
- if(prs_offset(&p->in_data.data) + data_len > MAX_RPC_DATA_SIZE) {
- DEBUG(0, ("process_request_pdu: "
- "rpc data buffer too large (%u) + (%u)\n",
- (unsigned int)prs_data_size(&p->in_data.data),
- (unsigned int)data_len ));
- set_incoming_fault(p);
- return False;
- }
-
- /*
- * Append the data portion into the buffer and return.
- */
-
- if (!prs_append_some_prs_data(&p->in_data.data, rpc_in_p,
- prs_offset(rpc_in_p), data_len)) {
- DEBUG(0, ("process_request_pdu: Unable to append data size %u "
- "to parse buffer of size %u.\n",
- (unsigned int)data_len,
- (unsigned int)prs_data_size(&p->in_data.data)));
- set_incoming_fault(p);
- return False;
- }
-
- if(p->hdr.flags & DCERPC_PFC_FLAG_LAST) {
- bool ret = False;
- /*
- * Ok - we finally have a complete RPC stream.
- * Call the rpc command to process it.
- */
-
- /*
- * Ensure the internal prs buffer size is *exactly* the same
- * size as the current offset.
- */
-
- if (!prs_set_buffer_size(&p->in_data.data,
- prs_offset(&p->in_data.data))) {
- DEBUG(0, ("process_request_pdu: "
- "Call to prs_set_buffer_size failed!\n"));
- set_incoming_fault(p);
- return False;
- }
-
- /*
- * Set the parse offset to the start of the data and set the
- * prs_struct to UNMARSHALL.
- */
-
- prs_set_offset(&p->in_data.data, 0);
- prs_switch_type(&p->in_data.data, UNMARSHALL);
-
- /*
- * Process the complete data stream here.
- */
-
- if(pipe_init_outgoing_data(p)) {
- ret = api_pipe_request(p);
- }
-
- return ret;
- }
-
- return True;
-}
-
-/****************************************************************************
- Processes a finished PDU stored in p->in_data.pdu.
-****************************************************************************/
-
-static void process_complete_pdu(pipes_struct *p)
-{
- prs_struct rpc_in;
- size_t data_len = p->in_data.pdu.length - RPC_HEADER_LEN;
- char *data_p = (char *)&p->in_data.pdu.data[RPC_HEADER_LEN];
- bool reply = False;
- bool hdr_ok;
-
- if(p->fault_state) {
- DEBUG(10,("process_complete_pdu: pipe %s in fault state.\n",
- get_pipe_name_from_syntax(talloc_tos(), &p->syntax)));
- set_incoming_fault(p);
- setup_fault_pdu(p, NT_STATUS(DCERPC_FAULT_OP_RNG_ERROR));
- return;
- }
-
- /* parse the header now */
- hdr_ok = unmarshall_rpc_header(p);
- if (!hdr_ok) {
- setup_fault_pdu(p, NT_STATUS(DCERPC_FAULT_OP_RNG_ERROR));
- return;
- }
-
- prs_init_empty( &rpc_in, p->mem_ctx, UNMARSHALL);
-
- /*
- * Ensure we're using the corrent endianness for both the
- * RPC header flags and the raw data we will be reading from.
- */
-
- prs_set_endian_data( &rpc_in, p->endian);
- prs_set_endian_data( &p->in_data.data, p->endian);
-
- prs_give_memory( &rpc_in, data_p, (uint32)data_len, False);
-
- DEBUG(10,("process_complete_pdu: processing packet type %u\n",
- (unsigned int)p->hdr.pkt_type ));
-
- switch (p->hdr.pkt_type) {
- case DCERPC_PKT_REQUEST:
- reply = process_request_pdu(p, &rpc_in);
- break;
-
- case DCERPC_PKT_PING: /* CL request - ignore... */
- DEBUG(0, ("process_complete_pdu: Error. "
- "Connectionless packet type %u received on "
- "pipe %s.\n", (unsigned int)p->hdr.pkt_type,
- get_pipe_name_from_syntax(talloc_tos(),
- &p->syntax)));
- break;
-
- case DCERPC_PKT_RESPONSE: /* No responses here. */
- DEBUG(0, ("process_complete_pdu: Error. "
- "DCERPC_PKT_RESPONSE received from client "
- "on pipe %s.\n",
- get_pipe_name_from_syntax(talloc_tos(),
- &p->syntax)));
- break;
-
- case DCERPC_PKT_FAULT:
- case DCERPC_PKT_WORKING:
- /* CL request - reply to a ping when a call in process. */
- case DCERPC_PKT_NOCALL:
- /* CL - server reply to a ping call. */
- case DCERPC_PKT_REJECT:
- case DCERPC_PKT_ACK:
- case DCERPC_PKT_CL_CANCEL:
- case DCERPC_PKT_FACK:
- case DCERPC_PKT_CANCEL_ACK:
- DEBUG(0, ("process_complete_pdu: Error. "
- "Connectionless packet type %u received on "
- "pipe %s.\n", (unsigned int)p->hdr.pkt_type,
- get_pipe_name_from_syntax(talloc_tos(),
- &p->syntax)));
- break;
-
- case DCERPC_PKT_BIND:
- /*
- * We assume that a pipe bind is only in one pdu.
- */
- if(pipe_init_outgoing_data(p)) {
- reply = api_pipe_bind_req(p, &rpc_in);
- }
- break;
-
- case DCERPC_PKT_BIND_ACK:
- case DCERPC_PKT_BIND_NAK:
- DEBUG(0, ("process_complete_pdu: Error. "
- "DCERPC_PKT_BINDACK/DCERPC_PKT_BINDNACK "
- "packet type %u received on pipe %s.\n",
- (unsigned int)p->hdr.pkt_type,
- get_pipe_name_from_syntax(talloc_tos(),
- &p->syntax)));
- break;
-
-
- case DCERPC_PKT_ALTER:
- /*
- * We assume that a pipe bind is only in one pdu.
- */
- if(pipe_init_outgoing_data(p)) {
- reply = api_pipe_alter_context(p, &rpc_in);
- }
- break;
-
- case DCERPC_PKT_ALTER_RESP:
- DEBUG(0, ("process_complete_pdu: Error. "
- "DCERPC_PKT_ALTER_RESP on pipe %s: "
- "Should only be server -> client.\n",
- get_pipe_name_from_syntax(talloc_tos(),
- &p->syntax)));
- break;
-
- case DCERPC_PKT_AUTH3:
- /*
- * The third packet in an NTLMSSP auth exchange.
- */
- if(pipe_init_outgoing_data(p)) {
- reply = api_pipe_bind_auth3(p, &rpc_in);
- }
- break;
-
- case DCERPC_PKT_SHUTDOWN:
- DEBUG(0, ("process_complete_pdu: Error. "
- "DCERPC_PKT_SHUTDOWN on pipe %s: "
- "Should only be server -> client.\n",
- get_pipe_name_from_syntax(talloc_tos(),
- &p->syntax)));
- break;
-
- case DCERPC_PKT_CO_CANCEL:
- /* For now just free all client data and continue
- * processing. */
- DEBUG(3,("process_complete_pdu: DCERPC_PKT_CO_CANCEL."
- " Abandoning rpc call.\n"));
- /* As we never do asynchronous RPC serving, we can
- * never cancel a call (as far as I know).
- * If we ever did we'd have to send a cancel_ack reply.
- * For now, just free all client data and continue
- * processing. */
- reply = True;
- break;
-#if 0
- /* Enable this if we're doing async rpc. */
- /* We must check the outstanding callid matches. */
- if(pipe_init_outgoing_data(p)) {
- /* Send a cancel_ack PDU reply. */
- /* We should probably check the auth-verifier here. */
- reply = setup_cancel_ack_reply(p, &rpc_in);
- }
- break;
-#endif
-
- case DCERPC_PKT_ORPHANED:
- /* We should probably check the auth-verifier here.
- * For now just free all client data and continue
- * processing. */
- DEBUG(3, ("process_complete_pdu: DCERPC_PKT_ORPHANED."
- " Abandoning rpc call.\n"));
- reply = True;
- break;
-
- default:
- DEBUG(0, ("process_complete_pdu: "
- "Unknown rpc type = %u received.\n",
- (unsigned int)p->hdr.pkt_type));
- break;
- }
-
- /* Reset to little endian.
- * Probably don't need this but it won't hurt. */
- prs_set_endian_data( &p->in_data.data, RPC_LITTLE_ENDIAN);
-
- if (!reply) {
- DEBUG(3,("process_complete_pdu: DCE/RPC fault sent on "
- "pipe %s\n", get_pipe_name_from_syntax(talloc_tos(),
- &p->syntax)));
- set_incoming_fault(p);
- setup_fault_pdu(p, NT_STATUS(DCERPC_FAULT_OP_RNG_ERROR));
- prs_mem_free(&rpc_in);
- } else {
- /*
- * Reset the lengths. We're ready for a new pdu.
- */
- TALLOC_FREE(p->in_data.pdu.data);
- p->in_data.pdu_needed_len = 0;
- p->in_data.pdu.length = 0;
- }
-
- prs_mem_free(&rpc_in);
-}
-
-/****************************************************************************
- Accepts incoming data on an rpc pipe. Processes the data in pdu sized units.
-****************************************************************************/
-
-static ssize_t process_incoming_data(pipes_struct *p, char *data, size_t n)
-{
- size_t data_to_copy = MIN(n, RPC_MAX_PDU_FRAG_LEN
- - p->in_data.pdu.length);
-
- DEBUG(10, ("process_incoming_data: Start: pdu.length = %u, "
- "pdu_needed_len = %u, incoming data = %u\n",
- (unsigned int)p->in_data.pdu.length,
- (unsigned int)p->in_data.pdu_needed_len,
- (unsigned int)n ));
-
- if(data_to_copy == 0) {
- /*
- * This is an error - data is being received and there is no
- * space in the PDU. Free the received data and go into the
- * fault state.
- */
- DEBUG(0, ("process_incoming_data: "
- "No space in incoming pdu buffer. "
- "Current size = %u incoming data size = %u\n",
- (unsigned int)p->in_data.pdu.length,
- (unsigned int)n));
- set_incoming_fault(p);
- return -1;
- }
-
- /*
- * If we have no data already, wait until we get at least
- * a RPC_HEADER_LEN * number of bytes before we can do anything.
- */
-
- if ((p->in_data.pdu_needed_len == 0) &&
- (p->in_data.pdu.length < RPC_HEADER_LEN)) {
- /*
- * Always return here. If we have more data then the RPC_HEADER
- * will be processed the next time around the loop.
- */
- return fill_rpc_header(p, data, data_to_copy);
- }
-
- /*
- * At this point we know we have at least an RPC_HEADER_LEN amount of
- * data stored in p->in_data.pdu.
- */
-
- /*
- * If pdu_needed_len is zero this is a new pdu.
- * Check how much more data we need, then loop again.
- */
- if (p->in_data.pdu_needed_len == 0) {
-
- bool ok = get_pdu_size(p);
- if (!ok) {
- return -1;
- }
- if (p->in_data.pdu_needed_len > 0) {
- return 0;
- }
-
- /* If rret == 0 and pdu_needed_len == 0 here we have a PDU
- * that consists of an RPC_HEADER only. This is a
- * DCERPC_PKT_SHUTDOWN, DCERPC_PKT_CO_CANCEL or
- * DCERPC_PKT_ORPHANED pdu type.
- * Deal with this in process_complete_pdu(). */
- }
-
- /*
- * Ok - at this point we have a valid RPC_HEADER.
- * Keep reading until we have a full pdu.
- */
-
- data_to_copy = MIN(data_to_copy, p->in_data.pdu_needed_len);
-
- /*
- * Copy as much of the data as we need into the p->in_data.pdu buffer.
- * pdu_needed_len becomes zero when we have a complete pdu.
- */
-
- memcpy((char *)&p->in_data.pdu.data[p->in_data.pdu.length],
- data, data_to_copy);
- p->in_data.pdu.length += data_to_copy;
- p->in_data.pdu_needed_len -= data_to_copy;
-
- /*
- * Do we have a complete PDU ?
- * (return the number of bytes handled in the call)
- */
-
- if(p->in_data.pdu_needed_len == 0) {
- process_complete_pdu(p);
- return data_to_copy;
- }
-
- DEBUG(10, ("process_incoming_data: not a complete PDU yet. "
- "pdu.length = %u, pdu_needed_len = %u\n",
- (unsigned int)p->in_data.pdu.length,
- (unsigned int)p->in_data.pdu_needed_len));
-
- return (ssize_t)data_to_copy;
-}
-
-/****************************************************************************
- Accepts incoming data on an internal rpc pipe.
-****************************************************************************/
-
-static ssize_t write_to_internal_pipe(struct pipes_struct *p, char *data, size_t n)
-{
- size_t data_left = n;
-
- while(data_left) {
- ssize_t data_used;
-
- DEBUG(10, ("write_to_pipe: data_left = %u\n",
- (unsigned int)data_left));
-
- data_used = process_incoming_data(p, data, data_left);
-
- DEBUG(10, ("write_to_pipe: data_used = %d\n",
- (int)data_used));
-
- if(data_used < 0) {
- return -1;
- }
-
- data_left -= data_used;
- data += data_used;
- }
-
- return n;
-}
-
-/****************************************************************************
- Replies to a request to read data from a pipe.
-
- Headers are interspersed with the data at PDU intervals. By the time
- this function is called, the start of the data could possibly have been
- read by an SMBtrans (file_offset != 0).
-
- Calling create_rpc_reply() here is a hack. The data should already
- have been prepared into arrays of headers + data stream sections.
-****************************************************************************/
-
-static ssize_t read_from_internal_pipe(struct pipes_struct *p, char *data,
- size_t n, bool *is_data_outstanding)
-{
- uint32 pdu_remaining = 0;
- ssize_t data_returned = 0;
-
- if (!p) {
- DEBUG(0,("read_from_pipe: pipe not open\n"));
- return -1;
- }
-
- DEBUG(6,(" name: %s len: %u\n",
- get_pipe_name_from_syntax(talloc_tos(), &p->syntax),
- (unsigned int)n));
-
- /*
- * We cannot return more than one PDU length per
- * read request.
- */
-
- /*
- * This condition should result in the connection being closed.
- * Netapp filers seem to set it to 0xffff which results in domain
- * authentications failing. Just ignore it so things work.
- */
-
- if(n > RPC_MAX_PDU_FRAG_LEN) {
- DEBUG(5,("read_from_pipe: too large read (%u) requested on "
- "pipe %s. We can only service %d sized reads.\n",
- (unsigned int)n,
- get_pipe_name_from_syntax(talloc_tos(), &p->syntax),
- RPC_MAX_PDU_FRAG_LEN ));
- n = RPC_MAX_PDU_FRAG_LEN;
- }
-
- /*
- * Determine if there is still data to send in the
- * pipe PDU buffer. Always send this first. Never
- * send more than is left in the current PDU. The
- * client should send a new read request for a new
- * PDU.
- */
-
- pdu_remaining = prs_offset(&p->out_data.frag)
- - p->out_data.current_pdu_sent;
-
- if (pdu_remaining > 0) {
- data_returned = (ssize_t)MIN(n, pdu_remaining);
-
- DEBUG(10,("read_from_pipe: %s: current_pdu_len = %u, "
- "current_pdu_sent = %u returning %d bytes.\n",
- get_pipe_name_from_syntax(talloc_tos(), &p->syntax),
- (unsigned int)prs_offset(&p->out_data.frag),
- (unsigned int)p->out_data.current_pdu_sent,
- (int)data_returned));
-
- memcpy(data,
- prs_data_p(&p->out_data.frag)
- + p->out_data.current_pdu_sent,
- data_returned);
-
- p->out_data.current_pdu_sent += (uint32)data_returned;
- goto out;
- }
-
- /*
- * At this point p->current_pdu_len == p->current_pdu_sent (which
- * may of course be zero if this is the first return fragment.
- */
-
- DEBUG(10,("read_from_pipe: %s: fault_state = %d : data_sent_length "
- "= %u, prs_offset(&p->out_data.rdata) = %u.\n",
- get_pipe_name_from_syntax(talloc_tos(), &p->syntax),
- (int)p->fault_state,
- (unsigned int)p->out_data.data_sent_length,
- (unsigned int)prs_offset(&p->out_data.rdata) ));
-
- if(p->out_data.data_sent_length >= prs_offset(&p->out_data.rdata)) {
- /*
- * We have sent all possible data, return 0.
- */
- data_returned = 0;
- goto out;
- }
-
- /*
- * We need to create a new PDU from the data left in p->rdata.
- * Create the header/data/footers. This also sets up the fields
- * p->current_pdu_len, p->current_pdu_sent, p->data_sent_length
- * and stores the outgoing PDU in p->current_pdu.
- */
-
- if(!create_next_pdu(p)) {
- DEBUG(0,("read_from_pipe: %s: create_next_pdu failed.\n",
- get_pipe_name_from_syntax(talloc_tos(), &p->syntax)));
- return -1;
- }
-
- data_returned = MIN(n, prs_offset(&p->out_data.frag));
-
- memcpy( data, prs_data_p(&p->out_data.frag), (size_t)data_returned);
- p->out_data.current_pdu_sent += (uint32)data_returned;
-
- out:
- (*is_data_outstanding) = prs_offset(&p->out_data.frag) > n;
-
- if (p->out_data.current_pdu_sent == prs_offset(&p->out_data.frag)) {
- /* We've returned everything in the out_data.frag
- * so we're done with this pdu. Free it and reset
- * current_pdu_sent. */
- p->out_data.current_pdu_sent = 0;
- prs_mem_free(&p->out_data.frag);
-
- if (p->out_data.data_sent_length
- >= prs_offset(&p->out_data.rdata)) {
- /*
- * We're completely finished with both outgoing and
- * incoming data streams. It's safe to free all
- * temporary data from this request.
- */
- free_pipe_context(p);
- }
- }
-
- return data_returned;
-}
-
bool fsp_is_np(struct files_struct *fsp)
{
enum FAKE_FILE_TYPE type;
type = fsp->fake_file_handle->type;
- return ((type == FAKE_FILE_TYPE_NAMED_PIPE)
- || (type == FAKE_FILE_TYPE_NAMED_PIPE_PROXY));
-}
-
-struct np_proxy_state {
- uint16_t file_type;
- uint16_t device_state;
- uint64_t allocation_size;
- struct tstream_context *npipe;
- struct tevent_queue *read_queue;
- struct tevent_queue *write_queue;
-};
-
-static struct np_proxy_state *make_external_rpc_pipe_p(TALLOC_CTX *mem_ctx,
- const char *pipe_name,
- const struct tsocket_address *local_address,
- const struct tsocket_address *remote_address,
- struct auth_serversupplied_info *server_info)
-{
- struct np_proxy_state *result;
- char *socket_np_dir;
- const char *socket_dir;
- struct tevent_context *ev;
- struct tevent_req *subreq;
- struct netr_SamInfo3 *info3;
- NTSTATUS status;
- bool ok;
- int ret;
- int sys_errno;
-
- result = talloc(mem_ctx, struct np_proxy_state);
- if (result == NULL) {
- DEBUG(0, ("talloc failed\n"));
- return NULL;
- }
-
- result->read_queue = tevent_queue_create(result, "np_read");
- if (result->read_queue == NULL) {
- DEBUG(0, ("tevent_queue_create failed\n"));
- goto fail;
- }
-
- result->write_queue = tevent_queue_create(result, "np_write");
- if (result->write_queue == NULL) {
- DEBUG(0, ("tevent_queue_create failed\n"));
- goto fail;
- }
-
- ev = s3_tevent_context_init(talloc_tos());
- if (ev == NULL) {
- DEBUG(0, ("s3_tevent_context_init failed\n"));
- goto fail;
- }
-
- socket_dir = lp_parm_const_string(
- GLOBAL_SECTION_SNUM, "external_rpc_pipe", "socket_dir",
- get_dyn_NCALRPCDIR());
- if (socket_dir == NULL) {
- DEBUG(0, ("externan_rpc_pipe:socket_dir not set\n"));
- goto fail;
- }
- socket_np_dir = talloc_asprintf(talloc_tos(), "%s/np", socket_dir);
- if (socket_np_dir == NULL) {
- DEBUG(0, ("talloc_asprintf failed\n"));
- goto fail;
- }
-
- info3 = talloc_zero(talloc_tos(), struct netr_SamInfo3);
- if (info3 == NULL) {
- DEBUG(0, ("talloc failed\n"));
- goto fail;
- }
-
- status = serverinfo_to_SamInfo3(server_info, NULL, 0, info3);
- if (!NT_STATUS_IS_OK(status)) {
- TALLOC_FREE(info3);
- DEBUG(0, ("serverinfo_to_SamInfo3 failed: %s\n",
- nt_errstr(status)));
- goto fail;
- }
-
- become_root();
- subreq = tstream_npa_connect_send(talloc_tos(), ev,
- socket_np_dir,
- pipe_name,
- remote_address, /* client_addr */
- NULL, /* client_name */
- local_address, /* server_addr */
- NULL, /* server_name */
- info3,
- server_info->user_session_key,
- data_blob_null /* delegated_creds */);
- if (subreq == NULL) {
- unbecome_root();
- DEBUG(0, ("tstream_npa_connect_send to %s for pipe %s and "
- "user %s\\%s failed\n",
- socket_np_dir, pipe_name, info3->base.domain.string,
- info3->base.account_name.string));
- goto fail;
- }
- ok = tevent_req_poll(subreq, ev);
- unbecome_root();
- if (!ok) {
- DEBUG(0, ("tevent_req_poll to %s for pipe %s and user %s\\%s "
- "failed for tstream_npa_connect: %s\n",
- socket_np_dir, pipe_name, info3->base.domain.string,
- info3->base.account_name.string,
- strerror(errno)));
- goto fail;
-
- }
- ret = tstream_npa_connect_recv(subreq, &sys_errno,
- result,
- &result->npipe,
- &result->file_type,
- &result->device_state,
- &result->allocation_size);
- TALLOC_FREE(subreq);
- if (ret != 0) {
- DEBUG(0, ("tstream_npa_connect_recv to %s for pipe %s and "
- "user %s\\%s failed: %s\n",
- socket_np_dir, pipe_name, info3->base.domain.string,
- info3->base.account_name.string,
- strerror(sys_errno)));
- goto fail;
- }
-
- return result;
-
- fail:
- TALLOC_FREE(result);
- return NULL;
+ return (type == FAKE_FILE_TYPE_NAMED_PIPE_PROXY);
}
NTSTATUS np_open(TALLOC_CTX *mem_ctx, const char *name,
- const struct tsocket_address *local_address,
- const struct tsocket_address *remote_address,
- struct auth_serversupplied_info *server_info,
+ const struct tsocket_address *remote_client_address,
+ const struct tsocket_address *local_server_address,
+ struct auth_session_info *session_info,
+ struct tevent_context *ev_ctx,
+ struct messaging_context *msg_ctx,
struct fake_file_handle **phandle)
{
+ enum rpc_service_mode_e pipe_mode;
const char **proxy_list;
struct fake_file_handle *handle;
+ struct ndr_syntax_id syntax;
+ struct npa_state *npa = NULL;
+ NTSTATUS status;
+ bool ok;
proxy_list = lp_parm_string_list(-1, "np", "proxy", NULL);
return NT_STATUS_NO_MEMORY;
}
+ /* Check what is the server type for this pipe.
+ Defaults to "embedded" */
+ pipe_mode = rpc_service_mode(name);
+
+ /* Still support the old method for defining external servers */
if ((proxy_list != NULL) && str_list_check_ci(proxy_list, name)) {
- struct np_proxy_state *p;
+ pipe_mode = RPC_SERVICE_MODE_EXTERNAL;
+ }
- p = make_external_rpc_pipe_p(handle, name,
- local_address,
- remote_address,
- server_info);
+ switch (pipe_mode) {
+ case RPC_SERVICE_MODE_EXTERNAL:
+ status = make_external_rpc_pipe(handle,
+ name,
+ remote_client_address,
+ local_server_address,
+ session_info,
+ &npa);
+ if (!NT_STATUS_IS_OK(status)) {
+ talloc_free(handle);
+ return status;
+ }
+ handle->private_data = (void *)npa;
handle->type = FAKE_FILE_TYPE_NAMED_PIPE_PROXY;
- handle->private_data = p;
- } else {
- struct pipes_struct *p;
- struct ndr_syntax_id syntax;
- const char *client_address;
- if (!is_known_pipename(name, &syntax)) {
- TALLOC_FREE(handle);
+ break;
+ case RPC_SERVICE_MODE_EMBEDDED:
+ /* Check if we handle this pipe internally */
+ ok = is_known_pipename(name, &syntax);
+ if (!ok) {
+ DEBUG(2, ("'%s' is not a registered pipe!\n", name));
+ talloc_free(handle);
return NT_STATUS_OBJECT_NAME_NOT_FOUND;
}
- if (tsocket_address_is_inet(remote_address, "ip")) {
- client_address = tsocket_address_inet_addr_string(
- remote_address,
- talloc_tos());
- if (client_address == NULL) {
- TALLOC_FREE(handle);
- return NT_STATUS_NO_MEMORY;
- }
- } else {
- client_address = "";
+ status = make_internal_rpc_pipe_socketpair(
+ handle,
+ ev_ctx,
+ msg_ctx,
+ name,
+ &syntax,
+ remote_client_address,
+ local_server_address,
+ session_info,
+ &npa);
+ if (!NT_STATUS_IS_OK(status)) {
+ talloc_free(handle);
+ return status;
}
- p = make_internal_rpc_pipe_p(handle, &syntax, client_address,
- server_info);
-
- handle->type = FAKE_FILE_TYPE_NAMED_PIPE;
- handle->private_data = p;
- }
+ handle->private_data = (void *)npa;
+ handle->type = FAKE_FILE_TYPE_NAMED_PIPE_PROXY;
- if (handle->private_data == NULL) {
- TALLOC_FREE(handle);
- return NT_STATUS_PIPE_NOT_AVAILABLE;
+ break;
+ case RPC_SERVICE_MODE_DISABLED:
+ talloc_free(handle);
+ return NT_STATUS_OBJECT_NAME_NOT_FOUND;
}
*phandle = handle;
bool np_read_in_progress(struct fake_file_handle *handle)
{
- if (handle->type == FAKE_FILE_TYPE_NAMED_PIPE) {
- return false;
- }
-
if (handle->type == FAKE_FILE_TYPE_NAMED_PIPE_PROXY) {
- struct np_proxy_state *p = talloc_get_type_abort(
- handle->private_data, struct np_proxy_state);
+ struct npa_state *p =
+ talloc_get_type_abort(handle->private_data,
+ struct npa_state);
size_t read_count;
read_count = tevent_queue_length(p->read_queue);
}
struct np_write_state {
- struct event_context *ev;
- struct np_proxy_state *p;
+ struct tevent_context *ev;
+ struct npa_state *p;
struct iovec iov;
ssize_t nwritten;
};
static void np_write_done(struct tevent_req *subreq);
-struct tevent_req *np_write_send(TALLOC_CTX *mem_ctx, struct event_context *ev,
+struct tevent_req *np_write_send(TALLOC_CTX *mem_ctx, struct tevent_context *ev,
struct fake_file_handle *handle,
const uint8_t *data, size_t len)
{
goto post_status;
}
- if (handle->type == FAKE_FILE_TYPE_NAMED_PIPE) {
- struct pipes_struct *p = talloc_get_type_abort(
- handle->private_data, struct pipes_struct);
-
- state->nwritten = write_to_internal_pipe(p, (char *)data, len);
-
- status = (state->nwritten >= 0)
- ? NT_STATUS_OK : NT_STATUS_UNEXPECTED_IO_ERROR;
- goto post_status;
- }
-
if (handle->type == FAKE_FILE_TYPE_NAMED_PIPE_PROXY) {
- struct np_proxy_state *p = talloc_get_type_abort(
- handle->private_data, struct np_proxy_state);
+ struct npa_state *p = talloc_get_type_abort(
+ handle->private_data, struct npa_state);
struct tevent_req *subreq;
state->ev = ev;
state->p = p;
- state->iov.iov_base = CONST_DISCARD(void *, data);
+ state->iov.iov_base = discard_const_p(void, data);
state->iov.iov_len = len;
subreq = tstream_writev_queue_send(state, ev,
- p->npipe,
+ p->stream,
p->write_queue,
&state->iov, 1);
if (subreq == NULL) {
}
struct np_read_state {
- struct np_proxy_state *p;
+ struct npa_state *p;
struct np_ipc_readv_next_vector_state next_vector;
- size_t nread;
+ ssize_t nread;
bool is_data_outstanding;
};
static void np_read_done(struct tevent_req *subreq);
-struct tevent_req *np_read_send(TALLOC_CTX *mem_ctx, struct event_context *ev,
+struct tevent_req *np_read_send(TALLOC_CTX *mem_ctx, struct tevent_context *ev,
struct fake_file_handle *handle,
uint8_t *data, size_t len)
{
return NULL;
}
- if (handle->type == FAKE_FILE_TYPE_NAMED_PIPE) {
- struct pipes_struct *p = talloc_get_type_abort(
- handle->private_data, struct pipes_struct);
-
- state->nread = read_from_internal_pipe(
- p, (char *)data, len, &state->is_data_outstanding);
-
- status = (state->nread >= 0)
- ? NT_STATUS_OK : NT_STATUS_UNEXPECTED_IO_ERROR;
- goto post_status;
- }
-
if (handle->type == FAKE_FILE_TYPE_NAMED_PIPE_PROXY) {
- struct np_proxy_state *p = talloc_get_type_abort(
- handle->private_data, struct np_proxy_state);
+ struct npa_state *p = talloc_get_type_abort(
+ handle->private_data, struct npa_state);
struct tevent_req *subreq;
np_ipc_readv_next_vector_init(&state->next_vector,
subreq = tstream_readv_pdu_queue_send(state,
ev,
- p->npipe,
+ p->stream,
p->read_queue,
np_ipc_readv_next_vector,
&state->next_vector);
if (subreq == NULL) {
-
+ status = NT_STATUS_NO_MEMORY;
+ goto post_status;
}
tevent_req_set_callback(subreq, np_read_done, req);
return req;
if (tevent_req_is_nterror(req, &status)) {
return status;
}
- *nread = state->nread;
- *is_data_outstanding = state->is_data_outstanding;
- return NT_STATUS_OK;
-}
-
-/**
- * @brief Create a new RPC client context which uses a local dispatch function.
- *
- * @param[in] conn The connection struct that will hold the pipe
- *
- * @param[out] spoolss_pipe A pointer to the connected rpc client pipe.
- *
- * @return NT_STATUS_OK on success, a corresponding NT status if an
- * error occured.
- */
-NTSTATUS rpc_connect_spoolss_pipe(connection_struct *conn,
- struct rpc_pipe_client **spoolss_pipe)
-{
- NTSTATUS status;
- /* TODO: check and handle disconnections */
+ DEBUG(10, ("Received %d bytes. There is %smore data outstanding\n",
+ (int)state->nread, state->is_data_outstanding?"":"no "));
- if (!conn->spoolss_pipe) {
- status = rpc_pipe_open_internal(conn,
- &ndr_table_spoolss.syntax_id,
- conn->server_info,
- &conn->spoolss_pipe);
- if (!NT_STATUS_IS_OK(status)) {
- return status;
- }
- }
-
- *spoolss_pipe = conn->spoolss_pipe;
+ *nread = state->nread;
+ *is_data_outstanding = state->is_data_outstanding;
return NT_STATUS_OK;
}
git.samba.org / vlendec / samba-autobuild / .git / blobdiff