Author: idra
Date: 2006-12-13 16:39:50 +0000 (Wed, 13 Dec 2006)
New Revision: 20150

WebSVN: 
http://websvn.samba.org/cgi-bin/viewcvs.cgi?view=rev&root=samba&rev=20150

Log:

better memory handling for some functions, make sure we don't
leak memory by using the wrong(long lived)  mem context


Modified:
   branches/SAMBA_3_0/source/nsswitch/idmap_rid.c
   branches/SAMBA_3_0/source/nsswitch/winbindd_async.c
   branches/SAMBA_3_0/source/nsswitch/winbindd_group.c
   branches/SAMBA_3_0/source/nsswitch/winbindd_util.c
   branches/SAMBA_3_0/source/script/tests/selftest.sh


Changeset:
Modified: branches/SAMBA_3_0/source/nsswitch/idmap_rid.c
===================================================================
--- branches/SAMBA_3_0/source/nsswitch/idmap_rid.c      2006-12-13 11:19:51 UTC 
(rev 20149)
+++ branches/SAMBA_3_0/source/nsswitch/idmap_rid.c      2006-12-13 16:39:50 UTC 
(rev 20150)
@@ -81,12 +81,12 @@
        return ret;
 }
 
-static NTSTATUS idmap_rid_id_to_sid(struct idmap_rid_context *ctx, struct 
id_map *map)
+static NTSTATUS idmap_rid_id_to_sid(TALLOC_CTX *memctx, struct 
idmap_rid_context *ctx, struct id_map *map)
 {
        char *domname, *name;
        enum lsa_SidType sid_type;
 
-       if (!ctx || !map) {
+       if (!memctx || !ctx || !map) {
                return NT_STATUS_INVALID_PARAMETER;
        }
 
@@ -99,7 +99,7 @@
 
        sid_compose(map->sid, &ctx->dom_sid, map->xid.id - ctx->low_id + 
ctx->base_rid);
 
-       if (winbindd_lookup_name_by_sid(ctx, map->sid, &domname, &name, 
&sid_type)) {
+       if (winbindd_lookup_name_by_sid(memctx, map->sid, &domname, &name, 
&sid_type)) {
                switch (sid_type) {
                case SID_NAME_USER:
                        if (map->xid.type != ID_TYPE_UID) {
@@ -136,13 +136,13 @@
  Single sid to id lookup function. 
 **********************************/
 
-static NTSTATUS idmap_rid_sid_to_id(struct idmap_rid_context *ctx, struct 
id_map *map)
+static NTSTATUS idmap_rid_sid_to_id(TALLOC_CTX *memctx, struct 
idmap_rid_context *ctx, struct id_map *map)
 {
        char *domname, *name;
        enum lsa_SidType sid_type;
        uint32_t rid;
 
-       if (!ctx || !map) {
+       if (!memctx || !ctx || !map) {
                return NT_STATUS_INVALID_PARAMETER;
        }
 
@@ -150,7 +150,7 @@
        map->xid.id = rid - ctx->base_rid + ctx->low_id;
 
        /* check if this is a valid SID and set the type */
-       if (winbindd_lookup_name_by_sid(ctx, map->sid, &domname, &name, 
&sid_type)) {
+       if (winbindd_lookup_name_by_sid(memctx, map->sid, &domname, &name, 
&sid_type)) {
                switch (sid_type) {
                case SID_NAME_USER:
                        map->xid.type = ID_TYPE_UID;
@@ -188,17 +188,24 @@
 
 static NTSTATUS idmap_rid_unixids_to_sids(struct idmap_domain *dom, struct 
id_map **ids)
 {
-       struct idmap_rid_context *ctx;
+       struct idmap_rid_context *ridctx;
+       TALLOC_CTX *ctx;
        NTSTATUS ret;
        int i;
 
-       ctx = talloc_get_type(dom->private_data, struct idmap_rid_context);
+       ridctx = talloc_get_type(dom->private_data, struct idmap_rid_context);
 
+       ctx = talloc_new(dom);
+       if ( ! ctx) {
+               DEBUG(0, ("Out of memory!\n"));
+               return NT_STATUS_NO_MEMORY;
+       }
+
        for (i = 0; ids[i]; i++) {
                /* make sure it is marked as unmapped before resolveing */
                ids[i]->mapped = False;
 
-               ret = idmap_rid_id_to_sid(ctx, ids[i]);
+               ret = idmap_rid_id_to_sid(ctx, ridctx, ids[i]);
 
                if (( ! NT_STATUS_IS_OK(ret)) &&
                    ( ! NT_STATUS_EQUAL(ret, NT_STATUS_NONE_MAPPED))) {
@@ -207,6 +214,7 @@
                }
        }
 
+       talloc_free(ctx);
        return NT_STATUS_OK;
 }
 
@@ -216,17 +224,24 @@
 
 static NTSTATUS idmap_rid_sids_to_unixids(struct idmap_domain *dom, struct 
id_map **ids)
 {
-       struct idmap_rid_context *ctx;
+       struct idmap_rid_context *ridctx;
+       TALLOC_CTX *ctx;
        NTSTATUS ret;
        int i;
 
-       ctx = talloc_get_type(dom->private_data, struct idmap_rid_context);
+       ridctx = talloc_get_type(dom->private_data, struct idmap_rid_context);
 
+       ctx = talloc_new(dom);
+       if ( ! ctx) {
+               DEBUG(0, ("Out of memory!\n"));
+               return NT_STATUS_NO_MEMORY;
+       }
+
        for (i = 0; ids[i]; i++) {
                /* make sure it is marked as unmapped before resolveing */
                ids[i]->mapped = False;
 
-               ret = idmap_rid_sid_to_id(ctx, ids[i]);
+               ret = idmap_rid_sid_to_id(ctx, ridctx, ids[i]);
 
                if (( ! NT_STATUS_IS_OK(ret)) &&
                    ( ! NT_STATUS_EQUAL(ret, NT_STATUS_NONE_MAPPED))) {
@@ -236,6 +251,7 @@
                }
        }
 
+       talloc_free(ctx);
        return NT_STATUS_OK;
 }
 

Modified: branches/SAMBA_3_0/source/nsswitch/winbindd_async.c
===================================================================
--- branches/SAMBA_3_0/source/nsswitch/winbindd_async.c 2006-12-13 11:19:51 UTC 
(rev 20149)
+++ branches/SAMBA_3_0/source/nsswitch/winbindd_async.c 2006-12-13 16:39:50 UTC 
(rev 20150)
@@ -738,8 +738,8 @@
 {
        enum lsa_SidType type;
        DOM_SID sid;
-       char *name = NULL;
-       char *dom_name = NULL;
+       char *name;
+       char *dom_name;
 
        /* Ensure null termination */
        state->request.data.sid[sizeof(state->request.data.sid)-1]='\0';

Modified: branches/SAMBA_3_0/source/nsswitch/winbindd_group.c
===================================================================
--- branches/SAMBA_3_0/source/nsswitch/winbindd_group.c 2006-12-13 11:19:51 UTC 
(rev 20149)
+++ branches/SAMBA_3_0/source/nsswitch/winbindd_group.c 2006-12-13 16:39:50 UTC 
(rev 20150)
@@ -442,8 +442,8 @@
 {
        struct winbindd_domain *domain;
        enum lsa_SidType name_type;
-       char *dom_name = NULL;
-       char *group_name = NULL;
+       char *dom_name;
+       char *group_name;
        size_t gr_mem_len;
        size_t num_gr_mem;
        char *gr_mem;

Modified: branches/SAMBA_3_0/source/nsswitch/winbindd_util.c
===================================================================
--- branches/SAMBA_3_0/source/nsswitch/winbindd_util.c  2006-12-13 11:19:51 UTC 
(rev 20149)
+++ branches/SAMBA_3_0/source/nsswitch/winbindd_util.c  2006-12-13 16:39:50 UTC 
(rev 20150)
@@ -718,6 +718,9 @@
        NTSTATUS result;
        struct winbindd_domain *domain;
 
+       *dom_name = NULL;
+       *name = NULL;
+
        domain = find_lookup_domain_from_sid(sid);
 
        if (!domain) {
@@ -736,7 +739,6 @@
        }
 
        *type = SID_NAME_UNKNOWN;
-       *name = talloc_strdup(mem_ctx, name_deadbeef);
         
        return False;
 }

Modified: branches/SAMBA_3_0/source/script/tests/selftest.sh
===================================================================
--- branches/SAMBA_3_0/source/script/tests/selftest.sh  2006-12-13 11:19:51 UTC 
(rev 20149)
+++ branches/SAMBA_3_0/source/script/tests/selftest.sh  2006-12-13 16:39:50 UTC 
(rev 20150)
@@ -95,8 +95,6 @@
        log file = $LOGDIR/log.%m
        log level = 0
 
-       passdb backend = tdbsam
-
        name resolve order = bcast
 EOF
 
@@ -108,6 +106,8 @@
        interfaces = $TORTURE_INTERFACES
        panic action = $SCRIPTDIR/gdb_backtrace %d %\$(MAKE_TEST_BINARY)
        include = $COMMONCONFFILE
+
+       passdb backend = tdbsam
 EOF
 
 cat >$SAMBA4CONFFILE<<EOF
@@ -126,6 +126,8 @@
        panic action = $SCRIPTDIR/gdb_backtrace %d %\$(MAKE_TEST_BINARY)
        include = $COMMONCONFFILE
 
+       passdb backend = tdbsam
+
        ; Necessary to add the build farm hacks
        add user script = /bin/false
        add machine script = /bin/false

Reply via email to