Cleanup size_t return values in callers of convert_string_allocate
[metze/samba/wip.git] / source3 / passdb / pdb_ldap.c
index b6f8c2d92e6304abc29973104a5c5b7e0ea89ff0..9ce659e818899d029d5ef69db58b3bdb36dd45de 100644 (file)
@@ -349,6 +349,7 @@ int ldapsam_search_suffix_by_name(struct ldapsam_privates *ldap_state,
        filter = talloc_asprintf(talloc_tos(), "(&%s%s)", "(uid=%u)",
                get_objclass_filter(ldap_state->schema_ver));
        if (!filter) {
+               SAFE_FREE(escape_user);
                return LDAP_NO_MEMORY;
        }
        /*
@@ -358,10 +359,10 @@ int ldapsam_search_suffix_by_name(struct ldapsam_privates *ldap_state,
 
        filter = talloc_all_string_sub(talloc_tos(),
                                filter, "%u", escape_user);
+       SAFE_FREE(escape_user);
        if (!filter) {
                return LDAP_NO_MEMORY;
        }
-       SAFE_FREE(escape_user);
 
        ret = smbldap_search_suffix(ldap_state->smbldap_state,
                        filter, attr, result);
@@ -407,7 +408,7 @@ static int ldapsam_search_suffix_by_sid (struct ldapsam_privates *ldap_state,
        filter = talloc_asprintf(talloc_tos(), "(&(%s=%s)%s)",
                get_userattr_key2string(ldap_state->schema_ver,
                        LDAP_ATTR_USER_SID),
-               sid_to_string(sid_string, sid),
+               sid_to_fstring(sid_string, sid),
                get_objclass_filter(ldap_state->schema_ver));
        if (!filter) {
                return LDAP_NO_MEMORY;
@@ -1152,7 +1153,7 @@ static bool init_ldap_from_sam (struct ldapsam_privates *ldap_state,
                        case SCHEMAVER_SAMBASAMACCOUNT:
                                smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
                                        get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_USER_SID), 
-                                       sid_to_string(sid_string, user_sid));
+                                       sid_to_fstring(sid_string, user_sid));
                                break;
 
                        default:
@@ -1190,7 +1191,7 @@ static bool init_ldap_from_sam (struct ldapsam_privates *ldap_state,
                        case SCHEMAVER_SAMBASAMACCOUNT:
                                smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
                                        get_userattr_key2string(ldap_state->schema_ver, 
-                                       LDAP_ATTR_PRIMARY_GROUP_SID), sid_to_string(sid_string, group_sid));
+                                       LDAP_ATTR_PRIMARY_GROUP_SID), sid_to_fstring(sid_string, group_sid));
                                break;
 
                        default:
@@ -1453,79 +1454,6 @@ static bool init_ldap_from_sam (struct ldapsam_privates *ldap_state,
        return True;
 }
 
-/**********************************************************************
- Connect to LDAP server for password enumeration.
-*********************************************************************/
-
-static NTSTATUS ldapsam_setsampwent(struct pdb_methods *my_methods, bool update, uint32 acb_mask)
-{
-       struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
-       int rc;
-       char *filter = NULL;
-       const char *suffix;
-       const char **attr_list;
-       bool machine_mask = False, user_mask = False;
-       NTSTATUS status = NT_STATUS_OK;
-       TALLOC_CTX *ctx = talloc_init("ldapsam_setsampwent");
-
-       if (!ctx) {
-               return NT_STATUS_NO_MEMORY;
-       }
-       filter = talloc_asprintf(ctx, "(&%s%s)", "(uid=%u)",
-               get_objclass_filter(ldap_state->schema_ver));
-       if (!filter) {
-               status = NT_STATUS_NO_MEMORY;
-               goto out;
-       }
-
-       filter = talloc_all_string_sub(ctx, filter, "%u", "*");
-       if (!filter) {
-               status = NT_STATUS_NO_MEMORY;
-               goto out;
-       }
-
-       machine_mask    = ((acb_mask != 0) && (acb_mask & (ACB_WSTRUST|ACB_SVRTRUST|ACB_DOMTRUST)));
-       user_mask       = ((acb_mask != 0) && (acb_mask & ACB_NORMAL));
-
-       if (machine_mask) {
-               suffix = lp_ldap_machine_suffix();
-       } else if (user_mask) {
-               suffix = lp_ldap_user_suffix();
-       } else {
-               suffix = lp_ldap_suffix();
-       }
-
-       DEBUG(10,("ldapsam_setsampwent: LDAP Query for acb_mask 0x%x will use suffix %s\n", 
-               acb_mask, suffix));
-
-       attr_list = get_userattr_list(NULL, ldap_state->schema_ver);
-       rc = smbldap_search(ldap_state->smbldap_state, suffix, LDAP_SCOPE_SUBTREE, filter, 
-                           attr_list, 0, &ldap_state->result);
-       TALLOC_FREE( attr_list );
-
-       if (rc != LDAP_SUCCESS) {
-               DEBUG(0, ("ldapsam_setsampwent: LDAP search failed: %s\n", ldap_err2string(rc)));
-               DEBUG(3, ("ldapsam_setsampwent: Query was: %s, %s\n", suffix, filter));
-               ldap_msgfree(ldap_state->result);
-               ldap_state->result = NULL;
-               status = NT_STATUS_UNSUCCESSFUL;
-               goto out;
-       }
-
-       DEBUG(2, ("ldapsam_setsampwent: %d entries in the base %s\n",
-               ldap_count_entries(ldap_state->smbldap_state->ldap_struct,
-               ldap_state->result), suffix));
-
-       ldap_state->entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct,
-                                ldap_state->result);
-       ldap_state->index = 0;
-
-  out:
-
-       TALLOC_FREE(ctx);
-       return status;
-}
-
 /**********************************************************************
  End enumeration of the LDAP password list.
 *********************************************************************/
@@ -1539,32 +1467,6 @@ static void ldapsam_endsampwent(struct pdb_methods *my_methods)
        }
 }
 
-/**********************************************************************
-Get the next entry in the LDAP password database.
-*********************************************************************/
-
-static NTSTATUS ldapsam_getsampwent(struct pdb_methods *my_methods,
-                                   struct samu *user)
-{
-       NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
-       struct ldapsam_privates *ldap_state =
-               (struct ldapsam_privates *)my_methods->private_data;
-       bool bret = False;
-
-       while (!bret) {
-               if (!ldap_state->entry)
-                       return ret;
-               
-               ldap_state->index++;
-               bret = init_sam_from_ldap(ldap_state, user, ldap_state->entry);
-               
-               ldap_state->entry = ldap_next_entry(priv2ld(ldap_state),
-                                                   ldap_state->entry); 
-       }
-
-       return NT_STATUS_OK;
-}
-
 static void append_attr(TALLOC_CTX *mem_ctx, const char ***attr_list,
                        const char *new_attr)
 {
@@ -1797,6 +1699,7 @@ static NTSTATUS ldapsam_modify_entry(struct pdb_methods *my_methods,
                struct berval *retdata = NULL;
                char *utf8_password;
                char *utf8_dn;
+               size_t converted_size;
 
                if (!ldap_state->is_nds_ldap) {
 
@@ -1808,11 +1711,14 @@ static NTSTATUS ldapsam_modify_entry(struct pdb_methods *my_methods,
                        }
                }
 
-               if (push_utf8_allocate(&utf8_password, pdb_get_plaintext_passwd(newpwd)) == (size_t)-1) {
+               if (!push_utf8_allocate(&utf8_password,
+                                       pdb_get_plaintext_passwd(newpwd),
+                                       &converted_size))
+               {
                        return NT_STATUS_NO_MEMORY;
                }
 
-               if (push_utf8_allocate(&utf8_dn, dn) == (size_t)-1) {
+               if (!push_utf8_allocate(&utf8_dn, dn, &converted_size)) {
                        SAFE_FREE(utf8_password);
                        return NT_STATUS_NO_MEMORY;
                }
@@ -1824,10 +1730,16 @@ static NTSTATUS ldapsam_modify_entry(struct pdb_methods *my_methods,
                        return NT_STATUS_UNSUCCESSFUL;
                }
 
-               ber_printf (ber, "{");
-               ber_printf (ber, "ts", LDAP_TAG_EXOP_MODIFY_PASSWD_ID, utf8_dn);
-               ber_printf (ber, "ts", LDAP_TAG_EXOP_MODIFY_PASSWD_NEW, utf8_password);
-               ber_printf (ber, "n}");
+               if ((ber_printf (ber, "{") < 0) ||
+                   (ber_printf (ber, "ts", LDAP_TAG_EXOP_MODIFY_PASSWD_ID, utf8_dn) < 0) ||
+                   (ber_printf (ber, "ts", LDAP_TAG_EXOP_MODIFY_PASSWD_NEW, utf8_password) < 0) ||
+                   (ber_printf (ber, "n}") < 0)) {
+                       DEBUG(0,("ldapsam_modify_entry: ber_printf returns a value <0\n"));
+                       ber_free(ber,1);
+                       SAFE_FREE(utf8_dn);
+                       SAFE_FREE(utf8_password);
+                       return NT_STATUS_UNSUCCESSFUL;
+               }
 
                if ((rc = ber_flatten (ber, &bv))<0) {
                        DEBUG(0,("ldapsam_modify_entry: ber_flatten returns a value <0\n"));
@@ -1867,6 +1779,10 @@ static NTSTATUS ldapsam_modify_entry(struct pdb_methods *my_methods,
                                pdb_get_username(newpwd), ldap_err2string(rc), ld_error?ld_error:"unknown"));
                        SAFE_FREE(ld_error);
                        ber_bvfree(bv);
+#if defined(LDAP_CONSTRAINT_VIOLATION)
+                       if (rc == LDAP_CONSTRAINT_VIOLATION)
+                               return NT_STATUS_PASSWORD_RESTRICTION;
+#endif
                        return NT_STATUS_UNSUCCESSFUL;
                } else {
                        DEBUG(3,("ldapsam_modify_entry: LDAP Password changed for user %s\n",pdb_get_username(newpwd)));
@@ -2007,8 +1923,9 @@ static NTSTATUS ldapsam_update_sam_account(struct pdb_methods *my_methods, struc
                        ldap_mods_free(mods,True);
                return NT_STATUS_UNSUCCESSFUL;
        }
-       
-       if (mods == NULL) {
+
+       if ((lp_ldap_passwd_sync() != LDAP_PASSWD_SYNC_ONLY)
+           && (mods == NULL)) {
                DEBUG(4,("ldapsam_update_sam_account: mods is empty: nothing to update for user: %s\n",
                         pdb_get_username(newpwd)));
                SAFE_FREE(dn);
@@ -2016,7 +1933,11 @@ static NTSTATUS ldapsam_update_sam_account(struct pdb_methods *my_methods, struc
        }
        
        ret = ldapsam_modify_entry(my_methods,newpwd,dn,mods,LDAP_MOD_REPLACE, element_is_changed);
-       ldap_mods_free(mods,True);
+
+       if (mods != NULL) {
+               ldap_mods_free(mods,True);
+       }
+
        SAFE_FREE(dn);
 
        /*
@@ -2068,7 +1989,7 @@ static NTSTATUS ldapsam_rename_sam_account(struct pdb_methods *my_methods,
 
        /* rename the posix user */
        rename_script = SMB_STRDUP(lp_renameuser_script());
-       if (rename_script) {
+       if (rename_script == NULL) {
                return NT_STATUS_NO_MEMORY;
        }
 
@@ -2577,11 +2498,12 @@ static NTSTATUS ldapsam_getgrsid(struct pdb_methods *methods, GROUP_MAP *map,
 {
        char *filter = NULL;
        NTSTATUS status;
+       fstring tmp;
 
        if (asprintf(&filter, "(&(objectClass=%s)(%s=%s))",
                LDAP_OBJ_GROUPMAP,
                get_attr_key2string(groupmap_attr_list, LDAP_ATTR_GROUP_SID),
-               sid_string_static(&sid)) < 0) {
+               sid_to_fstring(tmp, &sid)) < 0) {
                return NT_STATUS_NO_MEMORY;
        }
 
@@ -2777,7 +2699,7 @@ static NTSTATUS ldapsam_enum_group_members(struct pdb_methods *methods,
                        goto done;
                }
 
-               rc = smbldap_search(conn, lp_ldap_user_suffix(),
+               rc = smbldap_search(conn, lp_ldap_suffix(),
                                    LDAP_SCOPE_SUBTREE, filter, sid_attrs, 0,
                                    &result);
 
@@ -2833,7 +2755,7 @@ static NTSTATUS ldapsam_enum_group_members(struct pdb_methods *methods,
                                 LDAP_OBJ_SAMBASAMACCOUNT,
                                 gidstr);
 
-       rc = smbldap_search(conn, lp_ldap_user_suffix(),
+       rc = smbldap_search(conn, lp_ldap_suffix(),
                            LDAP_SCOPE_SUBTREE, filter, sid_attrs, 0,
                            &result);
 
@@ -2917,7 +2839,7 @@ static NTSTATUS ldapsam_enum_group_memberships(struct pdb_methods *methods,
                goto done;
        }
 
-       rc = smbldap_search(conn, lp_ldap_user_suffix(),
+       rc = smbldap_search(conn, lp_ldap_suffix(),
                            LDAP_SCOPE_SUBTREE, filter, attrs, 0, &result);
 
        if (rc != LDAP_SUCCESS)
@@ -2980,8 +2902,9 @@ static NTSTATUS ldapsam_enum_group_memberships(struct pdb_methods *methods,
 
        /* This sid will be replaced later */
 
-       if (!add_sid_to_array_unique(mem_ctx, &global_sid_NULL, pp_sids, &num_sids)) {
-               ret = NT_STATUS_NO_MEMORY;
+       ret = add_sid_to_array_unique(mem_ctx, &global_sid_NULL, pp_sids,
+                                     &num_sids);
+       if (!NT_STATUS_IS_OK(ret)) {
                goto done;
        }
 
@@ -3020,9 +2943,9 @@ static NTSTATUS ldapsam_enum_group_memberships(struct pdb_methods *methods,
                                ret = NT_STATUS_NO_MEMORY;
                                goto done;
                        }
-                       if (!add_sid_to_array_unique(mem_ctx, &sid, pp_sids,
-                                               &num_sids)) {
-                               ret = NT_STATUS_NO_MEMORY;
+                       ret = add_sid_to_array_unique(mem_ctx, &sid, pp_sids,
+                                                     &num_sids);
+                       if (!NT_STATUS_IS_OK(ret)) {
                                goto done;
                        }
                }
@@ -3545,6 +3468,7 @@ static NTSTATUS ldapsam_modify_aliasmem(struct pdb_methods *methods,
        LDAPMod **mods = NULL;
        int rc;
        enum lsa_SidType type = SID_NAME_USE_NONE;
+       fstring tmp;
 
        char *filter = NULL;
 
@@ -3564,7 +3488,7 @@ static NTSTATUS ldapsam_modify_aliasmem(struct pdb_methods *methods,
 
        if (asprintf(&filter,
                     "(&(objectClass=%s)(sambaSid=%s)(sambaGroupType=%d))",
-                    LDAP_OBJ_GROUPMAP, sid_string_static(alias),
+                    LDAP_OBJ_GROUPMAP, sid_to_fstring(tmp, alias),
                     type) < 0) {
                return NT_STATUS_NO_MEMORY;
        }
@@ -3612,7 +3536,7 @@ static NTSTATUS ldapsam_modify_aliasmem(struct pdb_methods *methods,
        smbldap_set_mod(&mods, modop,
                        get_attr_key2string(groupmap_attr_list,
                                            LDAP_ATTR_SID_LIST),
-                       sid_string_static(member));
+                       sid_to_fstring(tmp, member));
 
        rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
 
@@ -3665,6 +3589,7 @@ static NTSTATUS ldapsam_enum_aliasmem(struct pdb_methods *methods,
        char *filter = NULL;
        size_t num_members = 0;
        enum lsa_SidType type = SID_NAME_USE_NONE;
+       fstring tmp;
 
        *pp_members = NULL;
        *p_num_members = 0;
@@ -3685,7 +3610,7 @@ static NTSTATUS ldapsam_enum_aliasmem(struct pdb_methods *methods,
 
        if (asprintf(&filter,
                     "(&(objectClass=%s)(sambaSid=%s)(sambaGroupType=%d))",
-                    LDAP_OBJ_GROUPMAP, sid_string_static(alias),
+                    LDAP_OBJ_GROUPMAP, sid_to_fstring(tmp, alias),
                     type) < 0) {
                return NT_STATUS_NO_MEMORY;
        }
@@ -3738,14 +3663,17 @@ static NTSTATUS ldapsam_enum_aliasmem(struct pdb_methods *methods,
 
        for (i=0; i<count; i++) {
                DOM_SID member;
+               NTSTATUS status;
 
                if (!string_to_sid(&member, values[i]))
                        continue;
 
-               if (!add_sid_to_array(NULL, &member, pp_members, &num_members)) {
+               status = add_sid_to_array(NULL, &member, pp_members,
+                                         &num_members);
+               if (!NT_STATUS_IS_OK(status)) {
                        ldap_value_free(values);
                        ldap_msgfree(result);
-                       return NT_STATUS_NO_MEMORY;
+                       return status;
                }
        }
 
@@ -4480,6 +4408,7 @@ static bool ldapuser2displayentry(struct ldap_search_state *state,
                                  struct samr_displayentry *result)
 {
        char **vals;
+       size_t converted_size;
        DOM_SID sid;
        uint32 acct_flags;
 
@@ -4505,27 +4434,40 @@ static bool ldapuser2displayentry(struct ldap_search_state *state,
                DEBUG(5, ("\"uid\" not found\n"));
                return False;
        }
-       pull_utf8_talloc(mem_ctx,
-                        CONST_DISCARD(char **, &result->account_name),
-                        vals[0]);
+       if (!pull_utf8_talloc(mem_ctx,
+                             CONST_DISCARD(char **, &result->account_name),
+                             vals[0], &converted_size))
+       {
+               DEBUG(0,("ldapuser2displayentry: pull_utf8_talloc failed: %s",
+                        strerror(errno)));
+       }
+
        ldap_value_free(vals);
 
        vals = ldap_get_values(ld, entry, "displayName");
        if ((vals == NULL) || (vals[0] == NULL))
                DEBUG(8, ("\"displayName\" not found\n"));
-       else
-               pull_utf8_talloc(mem_ctx,
-                                CONST_DISCARD(char **, &result->fullname),
-                                vals[0]);
+       else if (!pull_utf8_talloc(mem_ctx,
+                                  CONST_DISCARD(char **, &result->fullname),
+                                  vals[0], &converted_size))
+       {
+               DEBUG(0,("ldapuser2displayentry: pull_utf8_talloc failed: %s",
+                        strerror(errno)));
+       }
+
        ldap_value_free(vals);
 
        vals = ldap_get_values(ld, entry, "description");
        if ((vals == NULL) || (vals[0] == NULL))
                DEBUG(8, ("\"description\" not found\n"));
-       else
-               pull_utf8_talloc(mem_ctx,
-                                CONST_DISCARD(char **, &result->description),
-                                vals[0]);
+       else if (!pull_utf8_talloc(mem_ctx,
+                                  CONST_DISCARD(char **, &result->description),
+                                  vals[0], &converted_size))
+       {
+               DEBUG(0,("ldapuser2displayentry: pull_utf8_talloc failed: %s",
+                        strerror(errno)));
+       }
+
        ldap_value_free(vals);
 
        if ((result->account_name == NULL) ||
@@ -4612,6 +4554,7 @@ static bool ldapgroup2displayentry(struct ldap_search_state *state,
                                   struct samr_displayentry *result)
 {
        char **vals;
+       size_t converted_size;
        DOM_SID sid;
        uint16 group_type;
 
@@ -4651,14 +4594,22 @@ static bool ldapgroup2displayentry(struct ldap_search_state *state,
                        DEBUG(5, ("\"cn\" not found\n"));
                        return False;
                }
-               pull_utf8_talloc(mem_ctx,
-                                CONST_DISCARD(char **, &result->account_name),
-                                vals[0]);
+               if (!pull_utf8_talloc(mem_ctx,
+                                     CONST_DISCARD(char **,
+                                                   &result->account_name),
+                                     vals[0], &converted_size))
+               {
+                       DEBUG(0,("ldapgroup2displayentry: pull_utf8_talloc "
+                                 "failed: %s", strerror(errno)));
+               }
        }
-       else {
-               pull_utf8_talloc(mem_ctx,
-                                CONST_DISCARD(char **, &result->account_name),
-                                vals[0]);
+       else if (!pull_utf8_talloc(mem_ctx,
+                                  CONST_DISCARD(char **,
+                                                &result->account_name),
+                                  vals[0], &converted_size))
+       {
+               DEBUG(0,("ldapgroup2displayentry: pull_utf8_talloc failed: %s",
+                         strerror(errno)));
        }
 
        ldap_value_free(vals);
@@ -4666,10 +4617,13 @@ static bool ldapgroup2displayentry(struct ldap_search_state *state,
        vals = ldap_get_values(ld, entry, "description");
        if ((vals == NULL) || (vals[0] == NULL))
                DEBUG(8, ("\"description\" not found\n"));
-       else
-               pull_utf8_talloc(mem_ctx,
-                                CONST_DISCARD(char **, &result->description),
-                                vals[0]);
+       else if (!pull_utf8_talloc(mem_ctx,
+                                  CONST_DISCARD(char **, &result->description),
+                                  vals[0], &converted_size))
+       {
+               DEBUG(0,("ldapgroup2displayentry: pull_utf8_talloc failed: %s",
+                         strerror(errno)));
+       }
        ldap_value_free(vals);
 
        if ((result->account_name == NULL) ||
@@ -4724,6 +4678,7 @@ static bool ldapsam_search_grouptype(struct pdb_methods *methods,
        struct ldapsam_privates *ldap_state =
                (struct ldapsam_privates *)methods->private_data;
        struct ldap_search_state *state;
+       fstring tmp;
 
        state = TALLOC_P(search->mem_ctx, struct ldap_search_state);
        if (state == NULL) {
@@ -4739,7 +4694,7 @@ static bool ldapsam_search_grouptype(struct pdb_methods *methods,
        state->filter = talloc_asprintf(search->mem_ctx,
                                        "(&(objectclass=sambaGroupMapping)"
                                        "(sambaGroupType=%d)(sambaSID=%s*))", 
-                                       type, sid_string_static(sid));
+                                       type, sid_to_fstring(tmp, sid));
        state->attrs = talloc_attrs(search->mem_ctx, "cn", "sambaSid",
                                    "displayName", "description",
                                    "sambaGroupType", NULL);
@@ -6168,9 +6123,6 @@ static NTSTATUS pdb_init_ldapsam_common(struct pdb_methods **pdb_method, const c
 
        (*pdb_method)->name = "ldapsam";
 
-       (*pdb_method)->setsampwent = ldapsam_setsampwent;
-       (*pdb_method)->endsampwent = ldapsam_endsampwent;
-       (*pdb_method)->getsampwent = ldapsam_getsampwent;
        (*pdb_method)->getsampwnam = ldapsam_getsampwnam;
        (*pdb_method)->getsampwsid = ldapsam_getsampwsid;
        (*pdb_method)->add_sam_account = ldapsam_add_sam_account;
@@ -6354,7 +6306,7 @@ NTSTATUS pdb_init_ldapsam(struct pdb_methods **pdb_method, const char *location)
                    entry,
                    get_userattr_key2string(ldap_state->schema_ver,
                                            LDAP_ATTR_USER_SID),
-                   NULL);
+                   talloc_tos());
 
        if (domain_sid_string) {
                bool found_sid;
@@ -6390,7 +6342,7 @@ NTSTATUS pdb_init_ldapsam(struct pdb_methods **pdb_method, const char *location)
                    entry,
                    get_attr_key2string( dominfo_attr_list,
                                         LDAP_ATTR_ALGORITHMIC_RID_BASE ),
-                   NULL);
+                   talloc_tos());
        if (alg_rid_base_string) {
                alg_rid_base = (uint32)atol(alg_rid_base_string);
                if (alg_rid_base != algorithmic_rid_base()) {