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authorVolker Lendecke <vlendec@samba.org>2007-02-26 22:44:24 +0000
committerGerald (Jerry) Carter <jerry@samba.org>2007-10-10 12:18:12 -0500
commiteccb9b7962a71541651bd63bff1ff85c80e70b77 (patch)
tree855cc7463868722fd2df5ed82fd8d94f101008d4
parentbdc612a09861af69eb711fd4704bf5641b3209aa (diff)
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r21549: Only create DISP_INFO structs for domain handles, the others don't need
them. It just does not make sense to do a querydispinfo on an alias handle... This fixes a memleak: Every samr_connect*() call leaked a DISP_INFO for the (NULL) sid. More cleanup pending: Essentially, we only need the DISP_INFO cache for the get_global_sam_sid() domain. BUILTIN is fixed and small enough, and there are no other domains around where enumerations could happen. This also removes the explicit builtin_domain flags. I don't think this is worth it. If this makes a significant difference, then we have a *VERY* tuned RPC layer... Jeremy, please check this. If it's ok, we might want to merge it across. Volker (This used to be commit 0aceda68a825788895759e79de55b080ad3f971d)
-rw-r--r--source3/rpc_server/srv_samr_nt.c82
1 files changed, 47 insertions, 35 deletions
diff --git a/source3/rpc_server/srv_samr_nt.c b/source3/rpc_server/srv_samr_nt.c
index d35d97f2a0..f59ab61509 100644
--- a/source3/rpc_server/srv_samr_nt.c
+++ b/source3/rpc_server/srv_samr_nt.c
@@ -49,7 +49,6 @@ typedef struct disp_info {
struct disp_info *next, *prev;
TALLOC_CTX *mem_ctx;
DOM_SID sid; /* identify which domain this is. */
- BOOL builtin_domain; /* Quick flag to check if this is the builtin domain. */
struct pdb_search *users; /* querydispinfo 1 and 4 */
struct pdb_search *machines; /* querydispinfo 2 */
struct pdb_search *groups; /* querydispinfo 3 and 5, enumgroups */
@@ -70,7 +69,6 @@ static DISP_INFO *disp_info_list;
struct samr_info {
/* for use by the \PIPE\samr policy */
DOM_SID sid;
- BOOL builtin_domain; /* Quick flag to check if this is the builtin domain. */
uint32 status; /* some sort of flag. best to record it. comes from opnum 0x39 */
uint32 acc_granted;
DISP_INFO *disp_info;
@@ -254,22 +252,11 @@ static NTSTATUS access_check_samr_function(uint32 acc_granted, uint32 acc_requir
Fetch or create a dispinfo struct.
********************************************************************/
-static DISP_INFO *get_samr_dispinfo_by_sid(DOM_SID *psid, const char *sid_str)
+static DISP_INFO *get_samr_dispinfo_by_sid(DOM_SID *psid)
{
TALLOC_CTX *mem_ctx;
DISP_INFO *dpi;
- /* There are two cases to consider here:
- 1) The SID is a domain SID and we look for an equality match, or
- 2) This is an account SID and so we return the DISP_INFO* for our
- domain */
-
- if ( psid && sid_check_is_in_our_domain( psid ) ) {
- DEBUG(10,("get_samr_dispinfo_by_sid: Replacing %s with our domain SID\n",
- sid_str));
- psid = get_global_sam_sid();
- }
-
for (dpi = disp_info_list; dpi; dpi = dpi->next) {
if (sid_equal(psid, &dpi->sid)) {
return dpi;
@@ -280,19 +267,18 @@ static DISP_INFO *get_samr_dispinfo_by_sid(DOM_SID *psid, const char *sid_str)
can get a list out of smbd using smbcontrol. There will
be one of these per SID we're authorative for. JRA. */
- mem_ctx = talloc_init("DISP_INFO for domain sid %s", sid_str);
+ mem_ctx = talloc_init("DISP_INFO for domain sid %s",
+ sid_string_static(psid));
- if ((dpi = TALLOC_ZERO_P(mem_ctx, DISP_INFO)) == NULL)
+ if ((dpi = TALLOC_ZERO_P(mem_ctx, DISP_INFO)) == NULL) {
+ DEBUG(0, ("talloc failed\n"));
+ TALLOC_FREE(mem_ctx);
return NULL;
+ }
dpi->mem_ctx = mem_ctx;
- if (psid) {
- sid_copy( &dpi->sid, psid);
- dpi->builtin_domain = sid_check_is_builtin(psid);
- } else {
- dpi->builtin_domain = False;
- }
+ sid_copy( &dpi->sid, psid);
DLIST_ADD(disp_info_list, dpi);
@@ -323,20 +309,11 @@ static struct samr_info *get_samr_info_by_sid(DOM_SID *psid)
DEBUG(10,("get_samr_info_by_sid: created new info for sid %s\n", sid_str));
if (psid) {
sid_copy( &info->sid, psid);
- info->builtin_domain = sid_check_is_builtin(psid);
} else {
DEBUG(10,("get_samr_info_by_sid: created new info for NULL sid.\n"));
- info->builtin_domain = False;
}
info->mem_ctx = mem_ctx;
- info->disp_info = get_samr_dispinfo_by_sid(psid, sid_str);
-
- if (!info->disp_info) {
- talloc_destroy(mem_ctx);
- return NULL;
- }
-
return info;
}
@@ -493,7 +470,7 @@ static uint32 count_sam_users(struct disp_info *info, uint32 acct_flags)
{
struct samr_displayentry *entry;
- if (info->builtin_domain) {
+ if (sid_check_is_builtin(&info->sid)) {
/* No users in builtin. */
return 0;
}
@@ -517,7 +494,7 @@ static uint32 count_sam_groups(struct disp_info *info)
{
struct samr_displayentry *entry;
- if (info->builtin_domain) {
+ if (sid_check_is_builtin(&info->sid)) {
/* No groups in builtin. */
return 0;
}
@@ -625,6 +602,11 @@ NTSTATUS _samr_open_domain(pipes_struct *p, SAMR_Q_OPEN_DOMAIN *q_u, SAMR_R_OPEN
return NT_STATUS_NO_MEMORY;
info->acc_granted = acc_granted;
+ if (!(info->disp_info = get_samr_dispinfo_by_sid(&q_u->dom_sid.sid))) {
+ TALLOC_FREE(info->mem_ctx);
+ return NT_STATUS_NO_MEMORY;
+ }
+
/* get a (unique) handle. open a policy on it. */
if (!create_policy_hnd(p, &r_u->domain_pol, free_samr_info, (void *)info))
return NT_STATUS_OBJECT_NAME_NOT_FOUND;
@@ -679,6 +661,11 @@ static BOOL get_lsa_policy_samr_sid( pipes_struct *p, POLICY_HND *pol,
if (!info)
return False;
+ if (!info->disp_info) {
+ /* Not a domain */
+ return False;
+ }
+
*sid = info->sid;
*acc_granted = info->acc_granted;
if (ppdisp_info) {
@@ -911,6 +898,11 @@ NTSTATUS _samr_enum_dom_users(pipes_struct *p, SAMR_Q_ENUM_DOM_USERS *q_u,
if (!find_policy_by_hnd(p, &q_u->pol, (void **)(void *)&info))
return NT_STATUS_INVALID_HANDLE;
+ if (!info->disp_info) {
+ /* not a domain */
+ return NT_STATUS_INVALID_HANDLE;
+ }
+
if (!NT_STATUS_IS_OK(r_u->status = access_check_samr_function(info->acc_granted,
SA_RIGHT_DOMAIN_ENUM_ACCOUNTS,
"_samr_enum_dom_users"))) {
@@ -919,7 +911,7 @@ NTSTATUS _samr_enum_dom_users(pipes_struct *p, SAMR_Q_ENUM_DOM_USERS *q_u,
DEBUG(5,("_samr_enum_dom_users: %d\n", __LINE__));
- if (info->builtin_domain) {
+ if (sid_check_is_builtin(&info->sid)) {
/* No users in builtin. */
init_samr_r_enum_dom_users(r_u, q_u->start_idx, 0);
DEBUG(5,("_samr_enum_dom_users: No users in BUILTIN\n"));
@@ -1044,6 +1036,11 @@ NTSTATUS _samr_enum_dom_groups(pipes_struct *p, SAMR_Q_ENUM_DOM_GROUPS *q_u, SAM
if (!find_policy_by_hnd(p, &q_u->pol, (void **)(void *)&info))
return NT_STATUS_INVALID_HANDLE;
+ if (!info->disp_info) {
+ /* not a domain */
+ return NT_STATUS_INVALID_HANDLE;
+ }
+
r_u->status = access_check_samr_function(info->acc_granted,
SA_RIGHT_DOMAIN_ENUM_ACCOUNTS,
"_samr_enum_dom_groups");
@@ -1052,7 +1049,7 @@ NTSTATUS _samr_enum_dom_groups(pipes_struct *p, SAMR_Q_ENUM_DOM_GROUPS *q_u, SAM
DEBUG(5,("samr_reply_enum_dom_groups: %d\n", __LINE__));
- if (info->builtin_domain) {
+ if (sid_check_is_builtin(&info->sid)) {
/* No groups in builtin. */
init_samr_r_enum_dom_groups(r_u, q_u->start_idx, 0);
DEBUG(5,("_samr_enum_dom_users: No groups in BUILTIN\n"));
@@ -1103,6 +1100,11 @@ NTSTATUS _samr_enum_dom_aliases(pipes_struct *p, SAMR_Q_ENUM_DOM_ALIASES *q_u, S
if (!find_policy_by_hnd(p, &q_u->pol, (void **)(void *)&info))
return NT_STATUS_INVALID_HANDLE;
+ if (!info->disp_info) {
+ /* not a domain */
+ return NT_STATUS_INVALID_HANDLE;
+ }
+
r_u->status = access_check_samr_function(info->acc_granted,
SA_RIGHT_DOMAIN_ENUM_ACCOUNTS,
"_samr_enum_dom_aliases");
@@ -1169,6 +1171,11 @@ NTSTATUS _samr_query_dispinfo(pipes_struct *p, SAMR_Q_QUERY_DISPINFO *q_u,
if (!find_policy_by_hnd(p, &q_u->domain_pol, (void **)(void *)&info))
return NT_STATUS_INVALID_HANDLE;
+ if (!info->disp_info) {
+ /* not a domain */
+ return NT_STATUS_INVALID_HANDLE;
+ }
+
/*
* calculate how many entries we will return.
* based on
@@ -2325,6 +2332,11 @@ NTSTATUS _samr_query_domain_info(pipes_struct *p,
if (!find_policy_by_hnd(p, &q_u->domain_pol, (void **)(void *)&info)) {
return NT_STATUS_INVALID_HANDLE;
}
+
+ if (!info->disp_info) {
+ /* not a domain */
+ return NT_STATUS_INVALID_HANDLE;
+ }
switch (q_u->switch_value) {
case 0x01: