/*
- * Unix SMB/Netbios implementation.
- * Version 1.9.
+ * Unix SMB/CIFS implementation.
* RPC Pipe client / server routines
* Copyright (C) Andrew Tridgell 1992-1998,
* Copyright (C) Luke Kenneth Casson Leighton 1996-1998,
* 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)
-extern int DEBUGLEVEL;
-static pipes_struct *chain_p;
+static smb_np_struct *chain_p;
static int pipes_open;
-#ifndef MAX_OPEN_PIPES
-#define MAX_OPEN_PIPES 64
+/*
+ * 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 pipes_struct *Pipes;
+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,
+ connection_struct *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;
/****************************************************************************
Reset pipe chain handle number.
****************************************************************************/
+
void reset_chain_p(void)
{
chain_p = NULL;
{
bmap = bitmap_allocate(MAX_OPEN_PIPES);
if (!bmap)
- exit_server("out of memory in init_rpc_pipe_hnd\n");
+ exit_server("out of memory in init_rpc_pipe_hnd");
}
/****************************************************************************
Initialise an outgoing packet.
****************************************************************************/
-static BOOL pipe_init_outgoing_data(output_data *o_data, uint32 len)
+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;
* 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, len, 4, MARSHALL)) {
+ 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;
}
-/****************************************************************************
- Attempt to find a remote process to communicate RPC's with.
-****************************************************************************/
-
-static void attempt_remote_rpc_connect(pipes_struct *p)
-{
- struct user_creds usr;
- user_struct *vuser = get_valid_user_struct(p->vuid);
-
- p->m = NULL;
-
- if (vuser == NULL) {
- DEBUG(4,("attempt_remote_rpc_connect: invalid vuid %d\n", (int)p->vuid));
- return;
- }
-
- ZERO_STRUCT(usr);
-
- /* set up unix credentials from the smb side, to feed over the pipe */
- make_creds_unix(&usr.uxc, vuser->user.unix_name, vuser->user.smb_name,
- vuser->user.real_name, vuser->guest);
- usr.ptr_uxc = 1;
- make_creds_unix_sec(&usr.uxs, vuser->uid, vuser->gid,
- vuser->n_groups, vuser->groups);
- usr.ptr_uxs = 1;
-
- usr.ptr_ssk = 1;
- DEBUG(10,("user session key not available (yet).\n"));
- DEBUG(10,("password-change operations may fail.\n"));
-
-#if USER_SESSION_KEY_DEFINED_IN_VUSER_STRUCT
- memcpy(usr.usr_sess_key, vuser->usr_sess_key, sizeof(usr.usr_sess_key));
-#else
- memset(usr.usr_sess_key, 0, sizeof(usr.usr_sess_key));
-#endif
-
- /* set up nt credentials from the smb side, to feed over the pipe */
- /* lkclXXXX todo!
- make_creds_nt(&usr.ntc);
- make_creds_nt_sec(&usr.nts);
- */
-
- become_root(False); /* to connect to pipe */
- p->m = msrpc_use_add(p->name, sys_getpid(), &usr, False);
- unbecome_root(False);
-
- if (p->m == NULL)
- DEBUG(10,("attempt_remote_rpc_connect: msrpc redirect failed - using local implementation.\n"));
-}
-
/****************************************************************************
Find first available pipe slot.
****************************************************************************/
-pipes_struct *open_rpc_pipe_p(char *pipe_name,
+smb_np_struct *open_rpc_pipe_p(char *pipe_name,
connection_struct *conn, uint16 vuid)
{
int i;
- pipes_struct *p;
+ 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 */
next_pipe = (i+1) % MAX_OPEN_PIPES;
for (p = Pipes; p; p = p->next)
- DEBUG(5,("open pipes: name %s pnum=%x\n", p->name, p->pnum));
+ DEBUG(5,("open_rpc_pipe_p: name %s pnum=%x\n", p->name, p->pnum));
- p = (pipes_struct *)malloc(sizeof(*p));
+ p = (smb_np_struct *)malloc(sizeof(*p));
- if (!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);
/*
* change the type to UNMARSALLING before processing the stream.
*/
- if(!prs_init(&p->in_data.data, MAX_PDU_FRAG_LEN, 4, MARSHALL)) {
- DEBUG(0,("open_rpc_pipe_p: malloc fail for in_data struct.\n"));
- return NULL;
- }
-
bitmap_set(bmap, i);
i += pipe_handle_offset;
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,
+ connection_struct *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.
/*
* Initialize the outgoing RPC data buffer with no memory.
*/
- prs_init(&p->out_data.rdata, 0, 4, MARSHALL);
-
- p->uid = (uid_t)-1;
- p->gid = (gid_t)-1;
+ prs_init(&p->out_data.rdata, 0, p->mem_ctx, MARSHALL);
fstrcpy(p->name, pipe_name);
-#if 0
-
- Comment out until memory leak fixed. JRA.
-
- /*
- * For Luke - attempt to connect to RPC redirect process.
- */
-
- attempt_remote_rpc_connect(p);
-#endif
-
- DEBUG(4,("Opened pipe %s with handle %x (pipes_open=%d)\n",
- pipe_name, i, pipes_open));
-
- chain_p = p;
-
- /* OVERWRITE p as a temp variable, to display all open pipes */
- for (p = Pipes; p; p = p->next)
- DEBUG(5,("open pipes: name %s pnum=%x\n", p->name, p->pnum));
+ DEBUG(4,("Created internal pipe %s (pipes_open=%d)\n",
+ pipe_name, pipes_open));
- return chain_p;
+ return (void*)p;
}
/****************************************************************************
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 : pnum = 0x%x\n",
- p->name, p->pnum ));
+ DEBUG(10,("set_incoming_fault: Setting fault state on pipe %s : vuid = 0x%x\n",
+ p->name, p->vuid ));
}
/****************************************************************************
return -1;
}
- prs_init( &rpc_in, 0, 4, UNMARSHALL);
+ 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;
}
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 is no data in the incoming buffer and it's a requst pdu then
- * ensure that the FIRST flag is set. If not then we have
- * a stream missmatch.
+ * If there's not data in the incoming buffer this should be the start of a new RPC.
*/
- if((p->hdr.pkt_type == RPC_REQUEST) && (prs_offset(&p->in_data.data) == 0) && !(p->hdr.flags & RPC_FLG_FIRST)) {
- DEBUG(0,("unmarshall_rpc_header: FIRST flag not set in first PDU !\n"));
- set_incoming_fault(p);
- return -1;
+ 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;
+ }
}
/*
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;
}
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 = IS_BITS_SET_ALL(p->ntlmssp_chal_flags, NTLMSSP_NEGOTIATE_SIGN);
+ 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;
* 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));
+ 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;
+ }
+
+ if (p->netsec_auth_validated && !api_pipe_netsec_process(p, rpc_in_p)) {
+ DEBUG(0,("process_request_pdu: failed to do schannel processing.\n"));
set_incoming_fault(p);
- return False;
- }
+ return False;
+ }
/*
- * Check the data length doesn't go over the 1Mb limit.
+ * 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_data_size(&p->in_data.data) + data_len > 1024*1024) {
+ 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);
* Append the data portion into the buffer and return.
*/
- {
- char *data_from = prs_data_p(rpc_in_p) + prs_offset(rpc_in_p);
-
- if(!prs_append_data(&p->in_data.data, data_from, 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(!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) {
* 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.
* Process the complete data stream here.
*/
- if(pipe_init_outgoing_data(&p->out_data, MAX_PDU_FRAG_LEN))
+ 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
DEBUG(10,("process_complete_pdu: pipe %s in fault state.\n",
p->name ));
set_incoming_fault(p);
- setup_fault_pdu(p);
+ setup_fault_pdu(p, NT_STATUS(0x1c010002));
return (ssize_t)data_len;
}
- prs_init( &rpc_in, 0, 4, UNMARSHALL);
+ 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",
/*
* We assume that a pipe bind is only in one pdu.
*/
- if(pipe_init_outgoing_data(&p->out_data, MAX_PDU_FRAG_LEN))
+ 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->out_data, MAX_PDU_FRAG_LEN))
+ if(pipe_init_outgoing_data(p))
reply = api_pipe_bind_auth_resp(p, &rpc_in);
break;
case RPC_REQUEST:
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);
+ 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_received_len = 0;
}
+ prs_mem_free(&rpc_in);
return (ssize_t)data_len;
}
Accepts incoming data on an rpc pipe.
****************************************************************************/
-ssize_t write_to_pipe(pipes_struct *p, char *data, size_t n)
+ssize_t write_to_pipe(smb_np_struct *p, char *data, size_t n)
{
- size_t data_left = n;
-
DEBUG(6,("write_to_pipe: %x", p->pnum));
DEBUG(6,(" name: %s open: %s len: %d\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 ));
- /*
- * Deal with the redirect to the remote RPC daemon.
- */
-
- if(p->m)
- data_used = write(p->m->fd, data, data_left);
- else
- data_used = process_incoming_data(p, data, data_left);
+ data_used = process_incoming_data(p, data, data_left);
DEBUG(10,("write_to_pipe: data_used = %d\n", (int)data_used ));
}
/****************************************************************************
- Gets data from a remote TNG daemon. Gets data from the remote daemon into
- the outgoing prs_struct.
+ Replies to a request to read data from a pipe.
- NB. Note to Luke : This code will be broken until Luke implements a length
- field before reply data...
+ 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 BOOL read_from_remote(pipes_struct *p)
+ssize_t read_from_pipe(smb_np_struct *p, char *data, size_t n,
+ BOOL *is_data_outstanding)
{
- uint32 data_len;
- uint32 data_len_left;
-
- if(prs_offset(&p->out_data.rdata) == 0) {
-
- ssize_t len = 0;
-
- /*
- * Read all the reply data as a stream of pre-created
- * PDU's from the remote deamon into the rdata struct.
- */
-
- /*
- * Create the response data buffer.
- */
-
- if(!pipe_init_outgoing_data(&p->out_data, 65536)) {
- DEBUG(0,("read_from_remote: failed to create outgoing buffer.\n"));
- return False;
- }
-
- /* Read from remote here. */
- if((len = read_with_timeout(p->m->fd, prs_data_p(&p->out_data.rdata), 1, 65536, 10000)) < 0) {
- DEBUG(0,("read_from_remote: failed to read from external daemon.\n"));
- prs_mem_free(&p->out_data.rdata);
- return False;
- }
-
- /* Set the length we got. */
- prs_set_offset(&p->out_data.rdata, (uint32)len);
- }
-
- /*
- * The amount we send is the minimum of the available
- * space and the amount left to send.
- */
-
- data_len_left = prs_offset(&p->out_data.rdata) - p->out_data.data_sent_length;
-
- /*
- * Ensure there really is data left to send.
- */
-
- if(!data_len_left) {
- DEBUG(0,("read_from_remote: no data left to send !\n"));
- return False;
+ if (!p || !p->open) {
+ DEBUG(0,("read_from_pipe: pipe not open\n"));
+ return -1;
}
- data_len = MIN(data_len_left, MAX_PDU_FRAG_LEN);
+ DEBUG(6,("read_from_pipe: %x", p->pnum));
- return False; /* Notfinished... */
+ return p->namedpipe_read(p->np_state, data, n, is_data_outstanding);
}
/****************************************************************************
have been prepared into arrays of headers + data stream sections.
****************************************************************************/
-ssize_t read_from_pipe(pipes_struct *p, char *data, size_t n)
+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 || !p->open) {
+ if (!p) {
DEBUG(0,("read_from_pipe: pipe not open\n"));
return -1;
}
- DEBUG(6,("read_from_pipe: %x", p->pnum));
-
DEBUG(6,(" name: %s len: %u\n", p->name, (unsigned int)n));
/*
* 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(0,("read_from_pipe: loo large read (%u) requested on pipe %s. We can \
-only service %d sized reads.\n", (unsigned int)n, p->name, MAX_PDU_FRAG_LEN ));
- return -1;
+ 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 ));
}
/*
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;
- return data_returned;
+ goto out;
}
/*
if(p->out_data.data_sent_length >= prs_offset(&p->out_data.rdata)) {
/*
- * We have sent all possible data. Return 0.
+ * We have sent all possible data, return 0.
*/
- return 0;
+ data_returned = 0;
+ goto out;
}
- if(p->m) {
- /*
- * Remote to the RPC daemon.
- */
- if(!read_from_remote(p)) {
- DEBUG(0,("read_from_pipe: %s: read_from_remote failed.\n", p->name ));
- return -1;
- }
-
- } else {
-
- /*
- * 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.
- */
+ /*
+ * 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;
- }
+ 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(pipes_struct *p, uint16 priority)
+BOOL wait_rpc_pipe_hnd_state(smb_np_struct *p, uint16 priority)
{
if (p == NULL)
return False;
Set device state on a pipe. Exactly what this is for is unknown...
****************************************************************************/
-BOOL set_rpc_pipe_hnd_state(pipes_struct *p, uint16 device_state)
+BOOL set_rpc_pipe_hnd_state(smb_np_struct *p, uint16 device_state)
{
if (p == NULL)
return False;
Close an rpc pipe.
****************************************************************************/
-BOOL close_rpc_pipe_hnd(pipes_struct *p, connection_struct *conn)
+BOOL close_rpc_pipe_hnd(smb_np_struct *p)
{
if (!p) {
DEBUG(0,("Invalid pipe in close_rpc_pipe_hnd\n"));
return False;
}
- prs_mem_free(&p->out_data.rdata);
- prs_mem_free(&p->in_data.data);
+ p->namedpipe_close(p->np_state);
bitmap_clear(bmap, p->pnum - pipe_handle_offset);
pipes_open--;
- if (p->m != NULL) {
- DEBUG(4,("close_rpc_pipe_hnd: closing msrpc redirect: "));
- if (msrpc_use_del(p->m->pipe_name, &p->m->usr, False, NULL))
- DEBUG(4,("OK\n"));
- else
- DEBUG(4,("FAILED\n"));
- }
-
DEBUG(4,("closed pipe name %s pnum=%x (pipes_open=%d)\n",
p->name, p->pnum, pipes_open));
ZERO_STRUCTP(p);
- free(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.
****************************************************************************/
-pipes_struct *get_rpc_pipe_p(char *buf, int where)
+smb_np_struct *get_rpc_pipe_p(char *buf, int where)
{
int pnum = SVAL(buf,where);
Find an rpc pipe given a pipe handle.
****************************************************************************/
-pipes_struct *get_rpc_pipe(int pnum)
+smb_np_struct *get_rpc_pipe(int pnum)
{
- pipes_struct *p;
+ smb_np_struct *p;
DEBUG(4,("search for pipe pnum=%x\n", pnum));
git.samba.org / amitay / samba.git / blobdiff