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authorSimo Sorce <ssorce@redhat.com>2010-06-06 16:33:28 -0400
committerSimo Sorce <ssorce@redhat.com>2010-06-07 17:25:48 -0400
commit22e9015e975096acf075240cc7d33f12c7c77395 (patch)
tree9dcb28b303acb3bde2c7034d57d0baa8368207b3 /source3/rpc_server/srv_lsa_hnd.c
parentf7e2e8370bfa91ad8dbd9de4f69bf1cfe0947573 (diff)
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s3:rpc handles are used by all pipes, use better name
Diffstat (limited to 'source3/rpc_server/srv_lsa_hnd.c')
-rw-r--r--source3/rpc_server/srv_lsa_hnd.c400
1 files changed, 0 insertions, 400 deletions
diff --git a/source3/rpc_server/srv_lsa_hnd.c b/source3/rpc_server/srv_lsa_hnd.c
deleted file mode 100644
index 7cc1b43611..0000000000
--- a/source3/rpc_server/srv_lsa_hnd.c
+++ /dev/null
@@ -1,400 +0,0 @@
-/*
- * Unix SMB/CIFS implementation.
- * RPC Pipe client / server routines
- * Copyright (C) Andrew Tridgell 1992-1997,
- * Copyright (C) Luke Kenneth Casson Leighton 1996-1997,
- * Copyright (C) Jeremy Allison 2001.
- *
- * 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 3 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, see <http://www.gnu.org/licenses/>.
- */
-
-#include "includes.h"
-#include "../librpc/gen_ndr/ndr_lsa.h"
-#include "../librpc/gen_ndr/ndr_samr.h"
-
-#undef DBGC_CLASS
-#define DBGC_CLASS DBGC_RPC_SRV
-
-/*
- * Handle database - stored per pipe.
- */
-
-struct policy {
- struct policy *next, *prev;
-
- struct policy_handle pol_hnd;
-
- uint32_t access_granted;
-
- void *data_ptr;
-};
-
-struct handle_list {
- struct policy *Policy; /* List of policies. */
- size_t count; /* Current number of handles. */
- size_t pipe_ref_count; /* Number of pipe handles referring to this list. */
-};
-
-/* This is the max handles across all instances of a pipe name. */
-#ifndef MAX_OPEN_POLS
-#define MAX_OPEN_POLS 2048
-#endif
-
-/****************************************************************************
- Hack as handles need to be persisant over lsa pipe closes so long as a samr
- pipe is open. JRA.
-****************************************************************************/
-
-static bool is_samr_lsa_pipe(const struct ndr_syntax_id *syntax)
-{
- return (ndr_syntax_id_equal(syntax, &ndr_table_samr.syntax_id)
- || ndr_syntax_id_equal(syntax, &ndr_table_lsarpc.syntax_id));
-}
-
-size_t num_pipe_handles(struct handle_list *list)
-{
- if (list == NULL) {
- return 0;
- }
- return list->count;
-}
-
-/****************************************************************************
- Initialise a policy handle list on a pipe. Handle list is shared between all
- pipes of the same name.
-****************************************************************************/
-
-bool init_pipe_handle_list(pipes_struct *p, const struct ndr_syntax_id *syntax)
-{
- pipes_struct *plist;
- struct handle_list *hl;
-
- for (plist = get_first_internal_pipe();
- plist;
- plist = get_next_internal_pipe(plist)) {
- if (ndr_syntax_id_equal(syntax, &plist->syntax)) {
- break;
- }
- if (is_samr_lsa_pipe(&plist->syntax)
- && is_samr_lsa_pipe(syntax)) {
- /*
- * samr and lsa share a handle space (same process
- * under Windows?)
- */
- break;
- }
- }
-
- if (plist != NULL) {
- hl = plist->pipe_handles;
- if (hl == NULL) {
- return false;
- }
- } else {
- /*
- * First open, we have to create the handle list
- */
- hl = SMB_MALLOC_P(struct handle_list);
- if (hl == NULL) {
- return false;
- }
- ZERO_STRUCTP(hl);
-
- DEBUG(10,("init_pipe_handle_list: created handle list for "
- "pipe %s\n",
- get_pipe_name_from_syntax(talloc_tos(), syntax)));
- }
-
- /*
- * One more pipe is using this list.
- */
-
- hl->pipe_ref_count++;
-
- /*
- * Point this pipe at this list.
- */
-
- p->pipe_handles = hl;
-
- DEBUG(10,("init_pipe_handle_list: pipe_handles ref count = %lu for "
- "pipe %s\n", (unsigned long)p->pipe_handles->pipe_ref_count,
- get_pipe_name_from_syntax(talloc_tos(), syntax)));
-
- return True;
-}
-
-/****************************************************************************
- find first available policy slot. creates a policy handle for you.
-
- If "data_ptr" is given, this must be a talloc'ed object, create_policy_hnd
- talloc_moves this into the handle. If the policy_hnd is closed,
- data_ptr is TALLOC_FREE()'ed
-****************************************************************************/
-
-static struct policy *create_policy_hnd_internal(pipes_struct *p,
- struct policy_handle *hnd,
- void *data_ptr)
-{
- static uint32 pol_hnd_low = 0;
- static uint32 pol_hnd_high = 0;
- time_t t = time(NULL);
-
- struct policy *pol;
-
- if (p->pipe_handles->count > MAX_OPEN_POLS) {
- DEBUG(0,("create_policy_hnd: ERROR: too many handles (%d) on this pipe.\n",
- (int)p->pipe_handles->count));
- return NULL;
- }
-
- pol = TALLOC_ZERO_P(NULL, struct policy);
- if (!pol) {
- DEBUG(0,("create_policy_hnd: ERROR: out of memory!\n"));
- return NULL;
- }
-
- if (data_ptr != NULL) {
- pol->data_ptr = talloc_move(pol, &data_ptr);
- }
-
- pol_hnd_low++;
- if (pol_hnd_low == 0)
- (pol_hnd_high)++;
-
- SIVAL(&pol->pol_hnd.handle_type, 0 , 0); /* first bit must be null */
- SIVAL(&pol->pol_hnd.uuid.time_low, 0 , pol_hnd_low ); /* second bit is incrementing */
- SSVAL(&pol->pol_hnd.uuid.time_mid, 0 , pol_hnd_high); /* second bit is incrementing */
- SSVAL(&pol->pol_hnd.uuid.time_hi_and_version, 0 , (pol_hnd_high>>16)); /* second bit is incrementing */
-
- /* split the current time into two 16 bit values */
-
- SSVAL(pol->pol_hnd.uuid.clock_seq, 0, (t>>16)); /* something random */
- SSVAL(pol->pol_hnd.uuid.node, 0, t); /* something random */
-
- SIVAL(pol->pol_hnd.uuid.node, 2, sys_getpid()); /* something more random */
-
- DLIST_ADD(p->pipe_handles->Policy, pol);
- p->pipe_handles->count++;
-
- *hnd = pol->pol_hnd;
-
- DEBUG(4,("Opened policy hnd[%d] ", (int)p->pipe_handles->count));
- dump_data(4, (uint8 *)hnd, sizeof(*hnd));
-
- return pol;
-}
-
-bool create_policy_hnd(pipes_struct *p, struct policy_handle *hnd,
- void *data_ptr)
-{
- return create_policy_hnd_internal(p, hnd, data_ptr) != NULL;
-}
-
-/****************************************************************************
- find policy by handle - internal version.
-****************************************************************************/
-
-static struct policy *find_policy_by_hnd_internal(pipes_struct *p,
- const struct policy_handle *hnd,
- void **data_p)
-{
- struct policy *pol;
- size_t i;
-
- if (data_p)
- *data_p = NULL;
-
- for (i = 0, pol=p->pipe_handles->Policy;pol;pol=pol->next, i++) {
- if (memcmp(&pol->pol_hnd, hnd, sizeof(*hnd)) == 0) {
- DEBUG(4,("Found policy hnd[%d] ", (int)i));
- dump_data(4, (uint8 *)hnd, sizeof(*hnd));
- if (data_p)
- *data_p = pol->data_ptr;
- return pol;
- }
- }
-
- DEBUG(4,("Policy not found: "));
- dump_data(4, (uint8 *)hnd, sizeof(*hnd));
-
- p->bad_handle_fault_state = True;
-
- return NULL;
-}
-
-/****************************************************************************
- find policy by handle
-****************************************************************************/
-
-bool find_policy_by_hnd(pipes_struct *p, const struct policy_handle *hnd,
- void **data_p)
-{
- return find_policy_by_hnd_internal(p, hnd, data_p) == NULL ? False : True;
-}
-
-/****************************************************************************
- Close a policy.
-****************************************************************************/
-
-bool close_policy_hnd(pipes_struct *p, struct policy_handle *hnd)
-{
- struct policy *pol = find_policy_by_hnd_internal(p, hnd, NULL);
-
- if (!pol) {
- DEBUG(3,("Error closing policy\n"));
- return False;
- }
-
- DEBUG(3,("Closed policy\n"));
-
- p->pipe_handles->count--;
-
- DLIST_REMOVE(p->pipe_handles->Policy, pol);
-
- TALLOC_FREE(pol);
-
- return True;
-}
-
-/****************************************************************************
- Close a pipe - free the handle list if it was the last pipe reference.
-****************************************************************************/
-
-void close_policy_by_pipe(pipes_struct *p)
-{
- p->pipe_handles->pipe_ref_count--;
-
- if (p->pipe_handles->pipe_ref_count == 0) {
- /*
- * Last pipe open on this list - free the list.
- */
- while (p->pipe_handles->Policy)
- close_policy_hnd(p, &p->pipe_handles->Policy->pol_hnd);
-
- p->pipe_handles->Policy = NULL;
- p->pipe_handles->count = 0;
-
- SAFE_FREE(p->pipe_handles);
- DEBUG(10,("close_policy_by_pipe: deleted handle list for "
- "pipe %s\n",
- get_pipe_name_from_syntax(talloc_tos(), &p->syntax)));
- }
-}
-
-/*******************************************************************
-Shall we allow access to this rpc? Currently this function
-implements the 'restrict anonymous' setting by denying access to
-anonymous users if the restrict anonymous level is > 0. Further work
-will be checking a security descriptor to determine whether a user
-token has enough access to access the pipe.
-********************************************************************/
-
-bool pipe_access_check(pipes_struct *p)
-{
- /* Don't let anonymous users access this RPC if restrict
- anonymous > 0 */
-
- if (lp_restrict_anonymous() > 0) {
-
- /* schannel, so we must be ok */
- if (p->pipe_bound && (p->auth.auth_type == PIPE_AUTH_TYPE_SCHANNEL)) {
- return True;
- }
-
- if (p->server_info->guest) {
- return False;
- }
- }
-
- return True;
-}
-
-void *_policy_handle_create(struct pipes_struct *p, struct policy_handle *hnd,
- uint32_t access_granted, size_t data_size,
- const char *type, NTSTATUS *pstatus)
-{
- struct policy *pol;
- void *data;
-
- if (p->pipe_handles->count > MAX_OPEN_POLS) {
- DEBUG(0, ("policy_handle_create: ERROR: too many handles (%d) "
- "on pipe %s.\n", (int)p->pipe_handles->count,
- get_pipe_name_from_syntax(talloc_tos(), &p->syntax)));
- *pstatus = NT_STATUS_INSUFFICIENT_RESOURCES;
- return NULL;
- }
-
- data = talloc_size(talloc_tos(), data_size);
- if (data == NULL) {
- *pstatus = NT_STATUS_NO_MEMORY;
- return NULL;
- }
- talloc_set_name_const(data, type);
-
- pol = create_policy_hnd_internal(p, hnd, data);
- if (pol == NULL) {
- TALLOC_FREE(data);
- *pstatus = NT_STATUS_NO_MEMORY;
- return NULL;
- }
- pol->access_granted = access_granted;
- *pstatus = NT_STATUS_OK;
- return data;
-}
-
-void *_policy_handle_find(struct pipes_struct *p,
- const struct policy_handle *hnd,
- uint32_t access_required,
- uint32_t *paccess_granted,
- const char *name, const char *location,
- NTSTATUS *pstatus)
-{
- struct policy *pol;
- void *data;
-
- pol = find_policy_by_hnd_internal(p, hnd, &data);
- if (pol == NULL) {
- *pstatus = NT_STATUS_INVALID_HANDLE;
- return NULL;
- }
- if (strcmp(name, talloc_get_name(data)) != 0) {
- DEBUG(10, ("expected %s, got %s\n", name,
- talloc_get_name(data)));
- *pstatus = NT_STATUS_INVALID_HANDLE;
- return NULL;
- }
- if ((access_required & pol->access_granted) != access_required) {
- if (geteuid() == sec_initial_uid()) {
- DEBUG(4, ("%s: ACCESS should be DENIED (granted: "
- "%#010x; required: %#010x)\n", location,
- pol->access_granted, access_required));
- DEBUGADD(4,("but overwritten by euid == 0\n"));
- goto okay;
- }
- DEBUG(2,("%s: ACCESS DENIED (granted: %#010x; required: "
- "%#010x)\n", location, pol->access_granted,
- access_required));
- *pstatus = NT_STATUS_ACCESS_DENIED;
- return NULL;
- }
-
- okay:
- DEBUG(10, ("found handle of type %s\n", talloc_get_name(data)));
- if (paccess_granted != NULL) {
- *paccess_granted = pol->access_granted;
- }
- *pstatus = NT_STATUS_OK;
- return data;
-}