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authorAndrew Tridgell <tridge@samba.org>1998-08-17 04:54:06 +0000
committerAndrew Tridgell <tridge@samba.org>1998-08-17 04:54:06 +0000
commit4a68715c2518a2d3c2eb4282b503c1ef7857b9d0 (patch)
tree306ba6ea719e0d07bd8216706e8c8e9afa2e0c09 /source3/rpc_server
parent8978aae69699ccab76fdf95037948b1cc7e7c286 (diff)
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converted the policy code to use a linked list and bitmap. This saves
us a bit of memory. (This used to be commit 27da84b90df1f32e0d07acad04c72065b2005470)
Diffstat (limited to 'source3/rpc_server')
-rw-r--r--source3/rpc_server/srv_lsa_hnd.c283
1 files changed, 144 insertions, 139 deletions
diff --git a/source3/rpc_server/srv_lsa_hnd.c b/source3/rpc_server/srv_lsa_hnd.c
index 91844ee8a2..2fc2c73ea3 100644
--- a/source3/rpc_server/srv_lsa_hnd.c
+++ b/source3/rpc_server/srv_lsa_hnd.c
@@ -28,7 +28,7 @@
extern int DEBUGLEVEL;
#ifndef MAX_OPEN_POLS
-#define MAX_OPEN_POLS 50
+#define MAX_OPEN_POLS 64
#endif
struct reg_info
@@ -45,23 +45,21 @@ struct samr_info
uint32 status; /* some sort of flag. best to record it. comes from opnum 0x39 */
};
-static struct
+static struct policy
{
- BOOL open;
- POLICY_HND pol_hnd;
+ struct policy *next, *prev;
+ int pnum;
+ BOOL open;
+ POLICY_HND pol_hnd;
- union
- {
- struct samr_info samr;
- struct reg_info reg;
+ union {
+ struct samr_info samr;
+ struct reg_info reg;
+ } dev;
+} *Policy;
- } dev;
+static struct bitmap *bmap;
-} Policy[MAX_OPEN_POLS];
-
-
-#define VALID_POL(pnum) (((pnum) >= 0) && ((pnum) < MAX_OPEN_POLS))
-#define OPEN_POL(pnum) (VALID_POL(pnum) && Policy[pnum].open)
/****************************************************************************
create a unique policy handle
@@ -89,13 +87,10 @@ void create_pol_hnd(POLICY_HND *hnd)
****************************************************************************/
void init_lsa_policy_hnd(void)
{
- int i;
- for (i = 0; i < MAX_OPEN_POLS; i++)
- {
- Policy[i].open = False;
+ bmap = bitmap_allocate(MAX_OPEN_POLS);
+ if (!bmap) {
+ exit_server("out of memory in init_lsa_policy_hnd\n");
}
-
- return;
}
/****************************************************************************
@@ -104,55 +99,75 @@ void init_lsa_policy_hnd(void)
BOOL open_lsa_policy_hnd(POLICY_HND *hnd)
{
int i;
+ struct policy *p;
- for (i = 0; i < MAX_OPEN_POLS; i++)
- {
- if (!Policy[i].open)
- {
- Policy[i].open = True;
-
- create_pol_hnd(hnd);
- memcpy(&(Policy[i].pol_hnd), hnd, sizeof(*hnd));
+ i = bitmap_find(bmap, 1);
- DEBUG(4,("Opened policy hnd[%x] ", i));
- dump_data(4, (char *)hnd->data, sizeof(hnd->data));
+ if (i == -1) {
+ DEBUG(0,("ERROR: out of Policy Handles!\n"));
+ return False;
+ }
- return True;
- }
+ p = (struct policy *)malloc(sizeof(*p));
+ if (!p) {
+ DEBUG(0,("ERROR: out of memory!\n"));
+ return False;
}
- /* i love obscure error messages. */
-#if TERRY_PRATCHET_INTERESTING_TIMES
- DEBUG(1,("+++ OUT OF CHEESE ERROR +++ REDO FROM START ... @?!*@@\n"));
-#else
- DEBUG(1,("ERROR - open_lsa_policy_hnd: out of Policy Handles!\n"));
-#endif
+ memset(p, 0, sizeof(*p));
- return False;
+ p->open = True;
+ p->pnum = i;
+
+ create_pol_hnd(hnd);
+ memcpy(&p->pol_hnd, hnd, sizeof(*hnd));
+
+ bitmap_set(bmap, i);
+
+ /* hook into the front of the list */
+ if (!Policy) {
+ Policy = p;
+ } else {
+ Policy->prev = p;
+ p->next = Policy;
+ Policy = p;
+ }
+
+ DEBUG(4,("Opened policy hnd[%x] ", i));
+ dump_data(4, (char *)hnd->data, sizeof(hnd->data));
+
+ return True;
}
/****************************************************************************
- find policy index by handle
+ find policy by handle
****************************************************************************/
-int find_lsa_policy_by_hnd(POLICY_HND *hnd)
+static struct policy *find_lsa_policy(POLICY_HND *hnd)
{
- int i;
+ struct policy *p;
- for (i = 0; i < MAX_OPEN_POLS; i++)
- {
- if (memcmp(&(Policy[i].pol_hnd), hnd, sizeof(*hnd)) == 0)
- {
- DEBUG(4,("Found policy hnd[%x] ", i));
+ for (p=Policy;p;p=p->next) {
+ if (memcmp(&p->pol_hnd, hnd, sizeof(*hnd)) == 0) {
+ DEBUG(4,("Found policy hnd[%x] ", p->pnum));
dump_data(4, (char *)hnd->data, sizeof(hnd->data));
-
- return i;
+ return p;
}
}
DEBUG(4,("Policy not found: "));
dump_data(4, (char *)hnd->data, sizeof(hnd->data));
- return -1;
+ return NULL;
+}
+
+/****************************************************************************
+ find policy index by handle
+****************************************************************************/
+int find_lsa_policy_by_hnd(POLICY_HND *hnd)
+{
+ struct policy *p = find_lsa_policy(hnd);
+
+ return p?p->pnum:-1;
}
/****************************************************************************
@@ -160,45 +175,39 @@ int find_lsa_policy_by_hnd(POLICY_HND *hnd)
****************************************************************************/
BOOL set_lsa_policy_samr_rid(POLICY_HND *hnd, uint32 rid)
{
- int pnum = find_lsa_policy_by_hnd(hnd);
+ struct policy *p = find_lsa_policy(hnd);
- if (OPEN_POL(pnum))
- {
- DEBUG(3,("%s Setting policy device rid=%x pnum=%x\n",
- timestring(), rid, pnum));
+ if (p && p->open) {
+ DEBUG(3,("Setting policy device rid=%x pnum=%x\n",
+ rid, p->pnum));
- Policy[pnum].dev.samr.rid = rid;
+ p->dev.samr.rid = rid;
return True;
}
- else
- {
- DEBUG(3,("%s Error setting policy rid=%x (pnum=%x)\n",
- timestring(), rid, pnum));
- return False;
- }
+
+ DEBUG(3,("Error setting policy rid=%x\n",rid));
+ return False;
}
+
/****************************************************************************
set samr pol status. absolutely no idea what this is.
****************************************************************************/
BOOL set_lsa_policy_samr_pol_status(POLICY_HND *hnd, uint32 pol_status)
{
- int pnum = find_lsa_policy_by_hnd(hnd);
+ struct policy *p = find_lsa_policy(hnd);
- if (OPEN_POL(pnum))
- {
- DEBUG(3,("%s Setting policy status=%x pnum=%x\n",
- timestring(), pol_status, pnum));
+ if (p && p->open) {
+ DEBUG(3,("Setting policy status=%x pnum=%x\n",
+ pol_status, p->pnum));
- Policy[pnum].dev.samr.status = pol_status;
+ p->dev.samr.status = pol_status;
return True;
- }
- else
- {
- DEBUG(3,("%s Error setting policy status=%x (pnum=%x)\n",
- timestring(), pol_status, pnum));
- return False;
- }
+ }
+
+ DEBUG(3,("Error setting policy status=%x\n",
+ pol_status));
+ return False;
}
/****************************************************************************
@@ -206,23 +215,20 @@ BOOL set_lsa_policy_samr_pol_status(POLICY_HND *hnd, uint32 pol_status)
****************************************************************************/
BOOL set_lsa_policy_samr_sid(POLICY_HND *hnd, DOM_SID *sid)
{
- pstring sidstr;
- int pnum = find_lsa_policy_by_hnd(hnd);
-
- if (OPEN_POL(pnum))
- {
- DEBUG(3,("%s Setting policy sid=%s pnum=%x\n",
- timestring(), sid_to_string(sidstr, sid), pnum));
-
- memcpy(&(Policy[pnum].dev.samr.sid), sid, sizeof(*sid));
- return True;
- }
- else
- {
- DEBUG(3,("%s Error setting policy sid=%s (pnum=%x)\n",
- timestring(), sid_to_string(sidstr, sid), pnum));
- return False;
- }
+ pstring sidstr;
+ struct policy *p = find_lsa_policy(hnd);
+
+ if (p && p->open) {
+ DEBUG(3,("Setting policy sid=%s pnum=%x\n",
+ sid_to_string(sidstr, sid), p->pnum));
+
+ memcpy(&p->dev.samr.sid, sid, sizeof(*sid));
+ return True;
+ }
+
+ DEBUG(3,("Error setting policy sid=%s\n",
+ sid_to_string(sidstr, sid)));
+ return False;
}
/****************************************************************************
@@ -230,22 +236,18 @@ BOOL set_lsa_policy_samr_sid(POLICY_HND *hnd, DOM_SID *sid)
****************************************************************************/
uint32 get_lsa_policy_samr_rid(POLICY_HND *hnd)
{
- int pnum = find_lsa_policy_by_hnd(hnd);
+ struct policy *p = find_lsa_policy(hnd);
- if (OPEN_POL(pnum))
- {
- uint32 rid = Policy[pnum].dev.samr.rid;
- DEBUG(3,("%s Getting policy device rid=%x pnum=%x\n",
- timestring(), rid, pnum));
+ if (p && p->open) {
+ uint32 rid = p->dev.samr.rid;
+ DEBUG(3,("Getting policy device rid=%x pnum=%x\n",
+ rid, p->pnum));
return rid;
}
- else
- {
- DEBUG(3,("%s Error getting policy (pnum=%x)\n",
- timestring(), pnum));
- return 0xffffffff;
- }
+
+ DEBUG(3,("Error getting policy\n"));
+ return 0xffffffff;
}
/****************************************************************************
@@ -253,46 +255,38 @@ uint32 get_lsa_policy_samr_rid(POLICY_HND *hnd)
****************************************************************************/
BOOL set_lsa_policy_reg_name(POLICY_HND *hnd, fstring name)
{
- int pnum = find_lsa_policy_by_hnd(hnd);
+ struct policy *p = find_lsa_policy(hnd);
- if (OPEN_POL(pnum))
- {
- DEBUG(3,("%s Setting policy pnum=%x name=%s\n",
- timestring(), pnum, name));
+ if (p && p->open) {
+ DEBUG(3,("Setting policy pnum=%x name=%s\n",
+ p->pnum, name));
- fstrcpy(Policy[pnum].dev.reg.name, name);
+ fstrcpy(p->dev.reg.name, name);
return True;
}
- else
- {
- DEBUG(3,("%s Error setting policy (pnum=%x) name=%s\n",
- timestring(), pnum, name));
- return False;
- }
+
+ DEBUG(3,("Error setting policy name=%s\n", name));
+ return False;
}
/****************************************************************************
get reg name
****************************************************************************/
-BOOL get_lsa_policy_reg_name(POLICY_HND *hnd, fstring name)
+BOOL get_lsa_policy_reg_name(POLICY_HND *hnd, char *name)
{
- int pnum = find_lsa_policy_by_hnd(hnd);
+ struct policy *p = find_lsa_policy(hnd);
- if (OPEN_POL(pnum))
- {
- fstrcpy(name, Policy[pnum].dev.reg.name);
+ if (p && p->open) {
+ fstrcpy(name, p->dev.reg.name);
- DEBUG(3,("%s Getting policy pnum=%x name=%s\n",
- timestring(), pnum, name));
+ DEBUG(3,("Getting policy pnum=%x name=%s\n",
+ p->pnum, name));
return True;
}
- else
- {
- DEBUG(3,("%s Error getting policy (pnum=%x)\n",
- timestring(), pnum));
- return False;
- }
+
+ DEBUG(3,("Error getting policy\n"));
+ return False;
}
/****************************************************************************
@@ -300,18 +294,29 @@ BOOL get_lsa_policy_reg_name(POLICY_HND *hnd, fstring name)
****************************************************************************/
BOOL close_lsa_policy_hnd(POLICY_HND *hnd)
{
- int pnum = find_lsa_policy_by_hnd(hnd);
+ struct policy *p = find_lsa_policy(hnd);
- if (OPEN_POL(pnum))
- {
- DEBUG(3,("%s Closed policy name pnum=%x\n", timestring(), pnum));
- Policy[pnum].open = False;
- return True;
- }
- else
- {
- DEBUG(3,("%s Error closing policy pnum=%x\n", timestring(), pnum));
+ if (!p) {
+ DEBUG(3,("Error closing policy\n"));
return False;
}
+
+ DEBUG(3,("Closed policy name pnum=%x\n", p->pnum));
+
+ if (p == Policy) {
+ Policy = p->next;
+ if (Policy) Policy->prev = NULL;
+ } else {
+ p->prev->next = p->next;
+ if (p->next) p->next->prev = p->prev;
+ }
+
+ bitmap_clear(bmap, p->pnum);
+
+ memset(p, 0, sizeof(*p));
+
+ free(p);
+
+ return True;
}