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Diffstat (limited to 'source4/rpc_server/srv_pipe_hnd.c')
-rw-r--r--source4/rpc_server/srv_pipe_hnd.c1156
1 files changed, 0 insertions, 1156 deletions
diff --git a/source4/rpc_server/srv_pipe_hnd.c b/source4/rpc_server/srv_pipe_hnd.c
deleted file mode 100644
index 602a7ed0ab..0000000000
--- a/source4/rpc_server/srv_pipe_hnd.c
+++ /dev/null
@@ -1,1156 +0,0 @@
-/*
- * Unix SMB/CIFS implementation.
- * RPC Pipe client / server routines
- * Copyright (C) Andrew Tridgell 1992-1998,
- * Copyright (C) Luke Kenneth Casson Leighton 1996-1998,
- * Copyright (C) Jeremy Allison 1999.
- *
- * 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.
- */
-
-#include "includes.h"
-
-#undef DBGC_CLASS
-#define DBGC_CLASS DBGC_RPC_SRV
-
-#define PIPE "\\PIPE\\"
-#define PIPELEN strlen(PIPE)
-
-static smb_np_struct *chain_p;
-static int pipes_open;
-
-/*
- * Sometimes I can't decide if I hate Windows printer driver
- * writers more than I hate the Windows spooler service driver
- * writers. This gets around a combination of bugs in the spooler
- * and the HP 8500 PCL driver that causes a spooler spin. JRA.
- *
- * bumped up from 20 -> 64 after viewing traffic from WordPerfect
- * 2002 running on NT 4.- SP6
- * bumped up from 64 -> 256 after viewing traffic from con2prt
- * for lots of printers on a WinNT 4.x SP6 box.
- */
-
-#ifndef MAX_OPEN_SPOOLSS_PIPES
-#define MAX_OPEN_SPOOLSS_PIPES 256
-#endif
-static int current_spoolss_pipes_open;
-
-static smb_np_struct *Pipes;
-static pipes_struct *InternalPipes;
-static struct bitmap *bmap;
-
-/* TODO
- * the following prototypes are declared here to avoid
- * code being moved about too much for a patch to be
- * disrupted / less obvious.
- *
- * these functions, and associated functions that they
- * call, should be moved behind a .so module-loading
- * system _anyway_. so that's the next step...
- */
-
-static ssize_t read_from_internal_pipe(void *np_conn, char *data, size_t n,
- BOOL *is_data_outstanding);
-static ssize_t write_to_internal_pipe(void *np_conn, char *data, size_t n);
-static BOOL close_internal_rpc_pipe_hnd(void *np_conn);
-static void *make_internal_rpc_pipe_p(char *pipe_name,
- struct tcon_context *conn, uint16 vuid);
-
-/****************************************************************************
- Pipe iterator functions.
-****************************************************************************/
-
-smb_np_struct *get_first_pipe(void)
-{
- return Pipes;
-}
-
-smb_np_struct *get_next_pipe(smb_np_struct *p)
-{
- return p->next;
-}
-
-/****************************************************************************
- Internal Pipe iterator functions.
-****************************************************************************/
-
-pipes_struct *get_first_internal_pipe(void)
-{
- return InternalPipes;
-}
-
-pipes_struct *get_next_internal_pipe(pipes_struct *p)
-{
- return p->next;
-}
-
-/* this must be larger than the sum of the open files and directories */
-static int pipe_handle_offset;
-
-/****************************************************************************
- Set the pipe_handle_offset. Called from smbd/files.c
-****************************************************************************/
-
-void set_pipe_handle_offset(int max_open_files)
-{
- if(max_open_files < 0x7000)
- pipe_handle_offset = 0x7000;
- else
- pipe_handle_offset = max_open_files + 10; /* For safety. :-) */
-}
-
-/****************************************************************************
- Reset pipe chain handle number.
-****************************************************************************/
-
-void reset_chain_p(void)
-{
- chain_p = NULL;
-}
-
-/****************************************************************************
- Initialise pipe handle states.
-****************************************************************************/
-
-void init_rpc_pipe_hnd(void)
-{
- bmap = bitmap_allocate(MAX_OPEN_PIPES);
- if (!bmap)
- exit_server("out of memory in init_rpc_pipe_hnd");
-}
-
-/****************************************************************************
- 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_len = 0;
- o_data->current_pdu_sent = 0;
-
- memset(o_data->current_pdu, '\0', sizeof(o_data->current_pdu));
-
- /* 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, MAX_PDU_FRAG_LEN, p->mem_ctx, MARSHALL)) {
- DEBUG(0,("pipe_init_outgoing_data: malloc fail.\n"));
- return False;
- }
-
- return True;
-}
-
-/****************************************************************************
- Find first available pipe slot.
-****************************************************************************/
-
-smb_np_struct *open_rpc_pipe_p(char *pipe_name,
- struct tcon_context *conn, uint16 vuid)
-{
- int i;
- smb_np_struct *p, *p_it;
- static int next_pipe;
- BOOL is_spoolss_pipe = False;
-
- DEBUG(4,("Open pipe requested %s (pipes_open=%d)\n",
- pipe_name, pipes_open));
-
- if (strstr(pipe_name, "spoolss"))
- is_spoolss_pipe = True;
-
- if (is_spoolss_pipe && current_spoolss_pipes_open >= MAX_OPEN_SPOOLSS_PIPES) {
- DEBUG(10,("open_rpc_pipe_p: spooler bug workaround. Denying open on pipe %s\n",
- pipe_name ));
- return NULL;
- }
-
- /* not repeating pipe numbers makes it easier to track things in
- log files and prevents client bugs where pipe numbers are reused
- over connection restarts */
- if (next_pipe == 0)
- next_pipe = (sys_getpid() ^ time(NULL)) % MAX_OPEN_PIPES;
-
- i = bitmap_find(bmap, next_pipe);
-
- if (i == -1) {
- DEBUG(0,("ERROR! Out of pipe structures\n"));
- return NULL;
- }
-
- next_pipe = (i+1) % MAX_OPEN_PIPES;
-
- for (p = Pipes; p; p = p->next)
- DEBUG(5,("open_rpc_pipe_p: name %s pnum=%x\n", p->name, p->pnum));
-
- p = (smb_np_struct *)malloc(sizeof(*p));
-
- if (!p) {
- DEBUG(0,("ERROR! no memory for pipes_struct!\n"));
- return NULL;
- }
-
- ZERO_STRUCTP(p);
-
- /* add a dso mechanism instead of this, here */
-
- p->namedpipe_create = make_internal_rpc_pipe_p;
- p->namedpipe_read = read_from_internal_pipe;
- p->namedpipe_write = write_to_internal_pipe;
- p->namedpipe_close = close_internal_rpc_pipe_hnd;
-
- p->np_state = p->namedpipe_create(pipe_name, conn, vuid);
-
- if (p->np_state == NULL) {
- DEBUG(0,("open_rpc_pipe_p: make_internal_rpc_pipe_p failed.\n"));
- SAFE_FREE(p);
- return NULL;
- }
-
- DLIST_ADD(Pipes, p);
-
- /*
- * Initialize the incoming RPC data buffer with one PDU worth of memory.
- * We cheat here and say we're marshalling, as we intend to add incoming
- * data directly into the prs_struct and we want it to auto grow. We will
- * change the type to UNMARSALLING before processing the stream.
- */
-
- bitmap_set(bmap, i);
- i += pipe_handle_offset;
-
- pipes_open++;
-
- p->pnum = i;
-
- p->open = True;
- p->device_state = 0;
- p->priority = 0;
- p->conn = conn;
- p->vuid = vuid;
-
- p->max_trans_reply = 0;
-
- fstrcpy(p->name, pipe_name);
-
- DEBUG(4,("Opened pipe %s with handle %x (pipes_open=%d)\n",
- pipe_name, i, pipes_open));
-
- chain_p = p;
-
- /* Iterate over p_it as a temp variable, to display all open pipes */
- for (p_it = Pipes; p_it; p_it = p_it->next)
- DEBUG(5,("open pipes: name %s pnum=%x\n", p_it->name, p_it->pnum));
-
- return chain_p;
-}
-
-/****************************************************************************
- Make an internal namedpipes structure
-****************************************************************************/
-
-static void *make_internal_rpc_pipe_p(char *pipe_name,
- struct tcon_context *conn, uint16 vuid)
-{
- pipes_struct *p;
- user_struct *vuser = get_valid_user_struct(vuid);
-
- DEBUG(4,("Create pipe requested %s\n", pipe_name));
-
- if (!vuser && vuid != UID_FIELD_INVALID) {
- DEBUG(0,("ERROR! vuid %d did not map to a valid vuser struct!\n", vuid));
- return NULL;
- }
-
- p = (pipes_struct *)malloc(sizeof(*p));
-
- if (!p)
- {
- DEBUG(0,("ERROR! no memory for pipes_struct!\n"));
- return NULL;
- }
-
- ZERO_STRUCTP(p);
-
- if ((p->mem_ctx = talloc_init("pipe %s %p", pipe_name, p)) == NULL) {
- DEBUG(0,("open_rpc_pipe_p: talloc_init failed.\n"));
- SAFE_FREE(p);
- return NULL;
- }
-
- if (!init_pipe_handle_list(p, pipe_name)) {
- DEBUG(0,("open_rpc_pipe_p: init_pipe_handles failed.\n"));
- talloc_destroy(p->mem_ctx);
- SAFE_FREE(p);
- return NULL;
- }
-
- /*
- * Initialize the incoming RPC data buffer with one PDU worth of memory.
- * We cheat here and say we're marshalling, as we intend to add incoming
- * data directly into the prs_struct and we want it to auto grow. We will
- * change the type to UNMARSALLING before processing the stream.
- */
-
- if(!prs_init(&p->in_data.data, MAX_PDU_FRAG_LEN, p->mem_ctx, MARSHALL)) {
- DEBUG(0,("open_rpc_pipe_p: malloc fail for in_data struct.\n"));
- return NULL;
- }
-
- DLIST_ADD(InternalPipes, p);
-
- p->conn = conn;
-
- /* Ensure the connection isn't idled whilst this pipe is open. */
- p->conn->num_files_open++;
-
- p->vuid = vuid;
-
- p->ntlmssp_chal_flags = 0;
- p->ntlmssp_auth_validated = False;
- p->ntlmssp_auth_requested = False;
-
- p->pipe_bound = False;
- p->fault_state = False;
- p->endian = RPC_LITTLE_ENDIAN;
-
- ZERO_STRUCT(p->pipe_user);
-
- p->pipe_user.uid = (uid_t)-1;
- p->pipe_user.gid = (gid_t)-1;
-
- /* Store the session key and NT_TOKEN */
- if (vuser) {
- memcpy(p->session_key, vuser->session_key, sizeof(p->session_key));
- p->pipe_user.nt_user_token = dup_nt_token(vuser->nt_user_token);
- }
-
- /*
- * Initialize the incoming RPC struct.
- */
-
- p->in_data.pdu_needed_len = 0;
- p->in_data.pdu_received_len = 0;
-
- /*
- * Initialize the outgoing RPC struct.
- */
-
- p->out_data.current_pdu_len = 0;
- p->out_data.current_pdu_sent = 0;
- p->out_data.data_sent_length = 0;
-
- /*
- * Initialize the outgoing RPC data buffer with no memory.
- */
- prs_init(&p->out_data.rdata, 0, p->mem_ctx, MARSHALL);
-
- fstrcpy(p->name, pipe_name);
-
- DEBUG(4,("Created internal pipe %s (pipes_open=%d)\n",
- pipe_name, pipes_open));
-
- return (void*)p;
-}
-
-/****************************************************************************
- 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_received_len = 0;
- p->fault_state = True;
- DEBUG(10,("set_incoming_fault: Setting fault state on pipe %s : vuid = 0x%x\n",
- p->name, p->vuid ));
-}
-
-/****************************************************************************
- 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_received_len);
-
- 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_received_len ));
-
- memcpy((char *)&p->in_data.current_in_pdu[p->in_data.pdu_received_len], data, len_needed_to_complete_hdr);
- p->in_data.pdu_received_len += len_needed_to_complete_hdr;
-
- return (ssize_t)len_needed_to_complete_hdr;
-}
-
-/****************************************************************************
- Unmarshalls a new PDU header. Assumes the raw header data is in current_in_pdu.
-****************************************************************************/
-
-static ssize_t unmarshall_rpc_header(pipes_struct *p)
-{
- /*
- * Unmarshall the header to determine the needed length.
- */
-
- prs_struct rpc_in;
-
- if(p->in_data.pdu_received_len != RPC_HEADER_LEN) {
- DEBUG(0,("unmarshall_rpc_header: assert on rpc header length failed.\n"));
- set_incoming_fault(p);
- return -1;
- }
-
- prs_init( &rpc_in, 0, p->mem_ctx, UNMARSHALL);
- prs_set_endian_data( &rpc_in, p->endian);
-
- prs_give_memory( &rpc_in, (char *)&p->in_data.current_in_pdu[0],
- p->in_data.pdu_received_len, False);
-
- /*
- * Unmarshall the header as this will tell us how much
- * data we need to read to get the complete pdu.
- * 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 -1;
- }
-
- /*
- * 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 -1;
- }
-
- /*
- * 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 == RPC_REQUEST) && !(p->hdr.flags & RPC_FLG_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 -1;
- }
-
- /*
- * 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 -1;
- }
- }
-
- /*
- * Ensure that the pdu length is sane.
- */
-
- if((p->hdr.frag_len < RPC_HEADER_LEN) || (p->hdr.frag_len > MAX_PDU_FRAG_LEN)) {
- DEBUG(0,("unmarshall_rpc_header: assert on frag length failed.\n"));
- set_incoming_fault(p);
- prs_mem_free(&rpc_in);
- return -1;
- }
-
- DEBUG(10,("unmarshall_rpc_header: type = %u, flags = %u\n", (unsigned int)p->hdr.pkt_type,
- (unsigned int)p->hdr.flags ));
-
- /*
- * Adjust for the header we just ate.
- */
- p->in_data.pdu_received_len = 0;
- p->in_data.pdu_needed_len = (uint32)p->hdr.frag_len - RPC_HEADER_LEN;
-
- /*
- * Null the data we just ate.
- */
-
- memset((char *)&p->in_data.current_in_pdu[0], '\0', RPC_HEADER_LEN);
-
- prs_mem_free(&rpc_in);
-
- return 0; /* No extra data processed. */
-}
-
-/****************************************************************************
- Call this to free any talloc'ed memory. Do this before and after processing
- a complete PDU.
-****************************************************************************/
-
-void free_pipe_context(pipes_struct *p)
-{
- if (p->mem_ctx) {
- DEBUG(3,("free_pipe_context: destroying talloc pool of size %u\n", talloc_pool_size(p->mem_ctx) ));
- talloc_destroy_pool(p->mem_ctx);
- } else {
- p->mem_ctx = talloc_init("pipe %s %p", p->name, p);
- if (p->mem_ctx == NULL)
- 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)
-{
- BOOL auth_verify = ((p->ntlmssp_chal_flags & NTLMSSP_NEGOTIATE_SIGN) != 0);
- size_t data_len = p->hdr.frag_len - RPC_HEADER_LEN - RPC_HDR_REQ_LEN -
- (auth_verify ? 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;
- }
-
- if(p->ntlmssp_auth_validated && !api_pipe_auth_process(p, rpc_in_p)) {
- DEBUG(0,("process_request_pdu: failed to do auth processing.\n"));
- set_incoming_fault(p);
- return False;
- }
-
- if (p->ntlmssp_auth_requested && !p->ntlmssp_auth_validated) {
-
- /*
- * Authentication _was_ requested and it already failed.
- */
-
- DEBUG(0,("process_request_pdu: RPC request received on pipe %s where \
-authentication failed. Denying the request.\n", p->name));
- set_incoming_fault(p);
- return False;
- }
-
- /*
- * 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 > 15*1024*1024) {
- 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 & RPC_FLG_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.
- */
-
- free_pipe_context(p);
-
- if(pipe_init_outgoing_data(p))
- ret = api_pipe_request(p);
-
- free_pipe_context(p);
-
- /*
- * We have consumed the whole data stream. Set back to
- * marshalling and set the offset back to the start of
- * the buffer to re-use it (we could also do a prs_mem_free()
- * and then re_init on the next start of PDU. Not sure which
- * is best here.... JRA.
- */
-
- prs_switch_type(&p->in_data.data, MARSHALL);
- prs_set_offset(&p->in_data.data, 0);
- return ret;
- }
-
- return True;
-}
-
-/****************************************************************************
- Processes a finished PDU stored in current_in_pdu. The RPC_HEADER has
- already been parsed and stored in p->hdr.
-****************************************************************************/
-
-static ssize_t process_complete_pdu(pipes_struct *p)
-{
- prs_struct rpc_in;
- size_t data_len = p->in_data.pdu_received_len;
- char *data_p = (char *)&p->in_data.current_in_pdu[0];
- BOOL reply = False;
-
- if(p->fault_state) {
- DEBUG(10,("process_complete_pdu: pipe %s in fault state.\n",
- p->name ));
- set_incoming_fault(p);
- setup_fault_pdu(p, NT_STATUS(0x1c010002));
- return (ssize_t)data_len;
- }
-
- prs_init( &rpc_in, 0, 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 RPC_BIND:
- case RPC_ALTCONT:
- /*
- * 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 RPC_BINDRESP:
- /*
- * We assume that a pipe bind_resp is only in one pdu.
- */
- if(pipe_init_outgoing_data(p))
- reply = api_pipe_bind_auth_resp(p, &rpc_in);
- break;
- case RPC_REQUEST:
- reply = process_request_pdu(p, &rpc_in);
- 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", p->pipe_srv_name));
- set_incoming_fault(p);
- setup_fault_pdu(p, NT_STATUS(0x1c010002));
- prs_mem_free(&rpc_in);
- } else {
- /*
- * Reset the lengths. We're ready for a new pdu.
- */
- p->in_data.pdu_needed_len = 0;
- p->in_data.pdu_received_len = 0;
- }
-
- prs_mem_free(&rpc_in);
- return (ssize_t)data_len;
-}
-
-/****************************************************************************
- 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, MAX_PDU_FRAG_LEN - p->in_data.pdu_received_len);
-
- DEBUG(10,("process_incoming_data: Start: pdu_received_len = %u, pdu_needed_len = %u, incoming data = %u\n",
- (unsigned int)p->in_data.pdu_received_len, (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_received_len, (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_received_len < 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 current_in_pdu.
- */
-
- /*
- * If pdu_needed_len is zero this is a new pdu.
- * Unmarshall the header so we know how much more
- * data we need, then loop again.
- */
-
- if(p->in_data.pdu_needed_len == 0)
- return unmarshall_rpc_header(p);
-
- /*
- * Ok - at this point we have a valid RPC_HEADER in p->hdr.
- * 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 current_in_pdu buffer.
- */
-
- memcpy( (char *)&p->in_data.current_in_pdu[p->in_data.pdu_received_len], data, data_to_copy);
- p->in_data.pdu_received_len += data_to_copy;
-
- /*
- * Do we have a complete PDU ?
- */
-
- if(p->in_data.pdu_received_len == p->in_data.pdu_needed_len)
- return process_complete_pdu(p);
-
- DEBUG(10,("process_incoming_data: not a complete PDU yet. pdu_received_len = %u, pdu_needed_len = %u\n",
- (unsigned int)p->in_data.pdu_received_len, (unsigned int)p->in_data.pdu_needed_len ));
-
- return (ssize_t)data_to_copy;
-
-}
-
-/****************************************************************************
- Accepts incoming data on an rpc pipe.
-****************************************************************************/
-
-ssize_t write_to_pipe(smb_np_struct *p, char *data, size_t n)
-{
- DEBUG(6,("write_to_pipe: %x", p->pnum));
-
- DEBUG(6,(" name: %s open: %s len: %d\n",
- p->name, BOOLSTR(p->open), (int)n));
-
- dump_data(50, data, n);
-
- return p->namedpipe_write(p->np_state, data, n);
-}
-
-/****************************************************************************
- Accepts incoming data on an internal rpc pipe.
-****************************************************************************/
-
-static ssize_t write_to_internal_pipe(void *np_conn, char *data, size_t n)
-{
- pipes_struct *p = (pipes_struct*)np_conn;
- 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.
-****************************************************************************/
-
-ssize_t read_from_pipe(smb_np_struct *p, char *data, size_t n,
- BOOL *is_data_outstanding)
-{
- if (!p || !p->open) {
- DEBUG(0,("read_from_pipe: pipe not open\n"));
- return -1;
- }
-
- DEBUG(6,("read_from_pipe: %x", p->pnum));
-
- return p->namedpipe_read(p->np_state, data, n, is_data_outstanding);
-}
-
-/****************************************************************************
- 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(void *np_conn, char *data, size_t n,
- BOOL *is_data_outstanding)
-{
- pipes_struct *p = (pipes_struct*)np_conn;
- 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", p->name, (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 > 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, p->name, 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.
- */
-
- if((pdu_remaining = p->out_data.current_pdu_len - p->out_data.current_pdu_sent) > 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", p->name, (unsigned int)p->out_data.current_pdu_len,
- (unsigned int)p->out_data.current_pdu_sent, (int)data_returned));
-
- memcpy( data, &p->out_data.current_pdu[p->out_data.current_pdu_sent], (size_t)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",
- p->name, (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", p->name));
- return -1;
- }
-
- data_returned = MIN(n, p->out_data.current_pdu_len);
-
- memcpy( data, p->out_data.current_pdu, (size_t)data_returned);
- p->out_data.current_pdu_sent += (uint32)data_returned;
-
- out:
-
- (*is_data_outstanding) = p->out_data.current_pdu_len > n;
- return data_returned;
-}
-
-/****************************************************************************
- Wait device state on a pipe. Exactly what this is for is unknown...
-****************************************************************************/
-
-BOOL wait_rpc_pipe_hnd_state(smb_np_struct *p, uint16 priority)
-{
- if (p == NULL)
- return False;
-
- if (p->open) {
- DEBUG(3,("wait_rpc_pipe_hnd_state: Setting pipe wait state priority=%x on pipe (name=%s)\n",
- priority, p->name));
-
- p->priority = priority;
-
- return True;
- }
-
- DEBUG(3,("wait_rpc_pipe_hnd_state: Error setting pipe wait state priority=%x (name=%s)\n",
- priority, p->name));
- return False;
-}
-
-
-/****************************************************************************
- Set device state on a pipe. Exactly what this is for is unknown...
-****************************************************************************/
-
-BOOL set_rpc_pipe_hnd_state(smb_np_struct *p, uint16 device_state)
-{
- if (p == NULL)
- return False;
-
- if (p->open) {
- DEBUG(3,("set_rpc_pipe_hnd_state: Setting pipe device state=%x on pipe (name=%s)\n",
- device_state, p->name));
-
- p->device_state = device_state;
-
- return True;
- }
-
- DEBUG(3,("set_rpc_pipe_hnd_state: Error setting pipe device state=%x (name=%s)\n",
- device_state, p->name));
- return False;
-}
-
-
-/****************************************************************************
- Close an rpc pipe.
-****************************************************************************/
-
-BOOL close_rpc_pipe_hnd(smb_np_struct *p)
-{
- if (!p) {
- DEBUG(0,("Invalid pipe in close_rpc_pipe_hnd\n"));
- return False;
- }
-
- p->namedpipe_close(p->np_state);
-
- bitmap_clear(bmap, p->pnum - pipe_handle_offset);
-
- pipes_open--;
-
- DEBUG(4,("closed pipe name %s pnum=%x (pipes_open=%d)\n",
- p->name, p->pnum, pipes_open));
-
- DLIST_REMOVE(Pipes, p);
-
- ZERO_STRUCTP(p);
-
- SAFE_FREE(p);
-
- return True;
-}
-
-/****************************************************************************
- Close an rpc pipe.
-****************************************************************************/
-
-static BOOL close_internal_rpc_pipe_hnd(void *np_conn)
-{
- pipes_struct *p = (pipes_struct *)np_conn;
- if (!p) {
- DEBUG(0,("Invalid pipe in close_internal_rpc_pipe_hnd\n"));
- return False;
- }
-
- prs_mem_free(&p->out_data.rdata);
- prs_mem_free(&p->in_data.data);
-
- if (p->mem_ctx)
- talloc_destroy(p->mem_ctx);
-
- /* Free the handles database. */
- close_policy_by_pipe(p);
-
- delete_nt_token(&p->pipe_user.nt_user_token);
- SAFE_FREE(p->pipe_user.groups);
-
- DLIST_REMOVE(InternalPipes, p);
-
- p->conn->num_files_open--;
-
- ZERO_STRUCTP(p);
-
- SAFE_FREE(p);
-
- return True;
-}
-
-/****************************************************************************
- Find an rpc pipe given a pipe handle in a buffer and an offset.
-****************************************************************************/
-
-smb_np_struct *get_rpc_pipe_p(char *buf, int where)
-{
- int pnum = SVAL(buf,where);
-
- if (chain_p)
- return chain_p;
-
- return get_rpc_pipe(pnum);
-}
-
-/****************************************************************************
- Find an rpc pipe given a pipe handle.
-****************************************************************************/
-
-smb_np_struct *get_rpc_pipe(int pnum)
-{
- smb_np_struct *p;
-
- DEBUG(4,("search for pipe pnum=%x\n", pnum));
-
- for (p=Pipes;p;p=p->next)
- DEBUG(5,("pipe name %s pnum=%x (pipes_open=%d)\n",
- p->name, p->pnum, pipes_open));
-
- for (p=Pipes;p;p=p->next) {
- if (p->pnum == pnum) {
- chain_p = p;
- return p;
- }
- }
-
- return NULL;
-}