#undef DBGC_CLASS
#define DBGC_CLASS DBGC_RPC_SRV
-static smb_np_struct *chain_p;
static int pipes_open;
/*
#endif
static int current_spoolss_pipes_open;
-static smb_np_struct *Pipes;
static pipes_struct *InternalPipes;
static struct bitmap *bmap;
}
}
-/****************************************************************************
- Reset pipe chain handle number.
-****************************************************************************/
-
-void reset_chain_p(void)
-{
- chain_p = NULL;
-}
-
/****************************************************************************
Initialise pipe handle states.
****************************************************************************/
return True;
}
-/****************************************************************************
- Find first available pipe slot.
-****************************************************************************/
-
-smb_np_struct *open_rpc_pipe_p(const char *pipe_name,
- connection_struct *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 = talloc(NULL, smb_np_struct);
- if (!p) {
- DEBUG(0,("ERROR! no memory for smb_np_struct!\n"));
- return NULL;
- }
-
- ZERO_STRUCTP(p);
-
- p->name = talloc_strdup(p, pipe_name);
- if (p->name == NULL) {
- TALLOC_FREE(p);
- DEBUG(0,("ERROR! no memory for pipe name!\n"));
- return NULL;
- }
-
- /* 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->np_state = p->namedpipe_create(NULL, pipe_name,
- conn->client_address,
- conn->server_info, vuid);
-
- if (p->np_state == NULL) {
- DEBUG(0,("open_rpc_pipe_p: make_internal_rpc_pipe_p failed.\n"));
- TALLOC_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;
-
- 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
****************************************************************************/
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, (uint8 *)data, n);
-
- return p->namedpipe_write(p->np_state, data, n);
-}
-
/****************************************************************************
Accepts incoming data on an internal rpc pipe.
****************************************************************************/
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.
-****************************************************************************/
-
ssize_t read_from_internal_pipe(struct pipes_struct *p, char *data, size_t n,
bool *is_data_outstanding)
{
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;
- }
-
- TALLOC_FREE(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);
-
- /* TODO: Remove from pipe open db */
-
- if ( !delete_pipe_opendb( p ) ) {
- DEBUG(3,("close_rpc_pipe_hnd: failed to delete %s "
- "pipe from open db.\n", p->name));
- }
-
- TALLOC_FREE(p);
-
- return True;
-}
-
-/****************************************************************************
- Close all pipes on a connection.
-****************************************************************************/
-
-void pipe_close_conn(connection_struct *conn)
-{
- smb_np_struct *p, *next;
-
- for (p=Pipes;p;p=next) {
- next = p->next;
- if (p->conn == conn) {
- close_rpc_pipe_hnd(p);
- }
- }
-}
-
/****************************************************************************
Close an rpc pipe.
****************************************************************************/
return True;
}
-/****************************************************************************
- Find an rpc pipe given a pipe handle in a buffer and an offset.
-****************************************************************************/
-
-smb_np_struct *get_rpc_pipe_p(uint16 pnum)
-{
- 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;
-}
-
bool fsp_is_np(struct files_struct *fsp)
{
return ((fsp != NULL)
return True;
}
-
-/*********************************************************************
-*********************************************************************/
-
-static TDB_DATA* make_pipe_rec_key( struct pipe_open_rec *prec )
-{
- TDB_DATA *kbuf = NULL;
- fstring key_string;
-
- if ( !prec )
- return NULL;
-
- if ( (kbuf = TALLOC_P(prec, TDB_DATA)) == NULL ) {
- return NULL;
- }
-
- snprintf( key_string, sizeof(key_string), "%s/%d/%d",
- prec->name, procid_to_pid(&prec->pid), prec->pnum );
-
- *kbuf = string_term_tdb_data(talloc_strdup(prec, key_string));
- if (kbuf->dptr == NULL )
- return NULL;
-
- return kbuf;
-}
-
-/*********************************************************************
-*********************************************************************/
-
-static void fill_pipe_open_rec( struct pipe_open_rec *prec, smb_np_struct *p )
-{
- prec->pid = pid_to_procid(sys_getpid());
- prec->pnum = p->pnum;
- prec->uid = geteuid();
- fstrcpy( prec->name, p->name );
-
- return;
-}
-
-/*********************************************************************
-*********************************************************************/
-
-bool store_pipe_opendb( smb_np_struct *p )
-{
- struct db_record *dbrec;
- struct pipe_open_rec *prec;
- TDB_DATA *key;
- TDB_DATA data;
- bool ret = False;
-
- if ( (prec = TALLOC_P( talloc_tos(), struct pipe_open_rec)) == NULL ) {
- DEBUG(0,("store_pipe_opendb: talloc failed!\n"));
- return False;
- }
-
- fill_pipe_open_rec( prec, p );
- if ( (key = make_pipe_rec_key( prec )) == NULL ) {
- goto done;
- }
-
- data.dptr = (uint8 *)prec;
- data.dsize = sizeof(struct pipe_open_rec);
-
- if (!(dbrec = connections_fetch_record(prec, *key))) {
- DEBUG(0, ("connections_fetch_record failed\n"));
- goto done;
- }
-
- ret = NT_STATUS_IS_OK(dbrec->store(dbrec, data, TDB_REPLACE));
-
-done:
- TALLOC_FREE( prec );
- return ret;
-}
-
-/*********************************************************************
-*********************************************************************/
-
-bool delete_pipe_opendb( smb_np_struct *p )
-{
- struct db_record *dbrec;
- struct pipe_open_rec *prec;
- TDB_DATA *key;
- bool ret = False;
-
- if ( (prec = TALLOC_P( talloc_tos(), struct pipe_open_rec)) == NULL ) {
- DEBUG(0,("store_pipe_opendb: talloc failed!\n"));
- return False;
- }
-
- fill_pipe_open_rec( prec, p );
- if ( (key = make_pipe_rec_key( prec )) == NULL ) {
- goto done;
- }
-
- if (!(dbrec = connections_fetch_record(prec, *key))) {
- DEBUG(0, ("connections_fetch_record failed\n"));
- goto done;
- }
-
- ret = NT_STATUS_IS_OK(dbrec->delete_rec(dbrec));
-
-done:
- TALLOC_FREE( prec );
- return ret;
-}
git.samba.org / ira / wip.git / commitdiff