diff options
| -rw-r--r-- | source3/rpc_server/srv_spoolss_util.c | 177 | ||||
| -rw-r--r-- | source3/rpc_server/srv_spoolss_util.h | 18 |
2 files changed, 195 insertions, 0 deletions
diff --git a/source3/rpc_server/srv_spoolss_util.c b/source3/rpc_server/srv_spoolss_util.c index 2f13cf49f8..d4c4f91ceb 100644 --- a/source3/rpc_server/srv_spoolss_util.c +++ b/source3/rpc_server/srv_spoolss_util.c @@ -483,6 +483,107 @@ static WERROR winreg_printer_enumkeys(TALLOC_CTX *mem_ctx, return result; } +/** + * @internal + * + * @brief A function to delete a key and its subkeys recurively. + * + * @param[in] mem_ctx The memory context to use. + * + * @param[in] pipe_handle The pipe handle for the rpc connection. + * + * @param[in] hive_handle A opened hive handle to the key. + * + * @param[in] access_mask The access mask to access the key. + * + * @param[in] key The key to delete + * + * @return WERR_OK on success, the corresponding DOS error + * code if something gone wrong. + */ +static WERROR winreg_printer_delete_subkeys(TALLOC_CTX *mem_ctx, + struct rpc_pipe_client *pipe_handle, + struct policy_handle *hive_handle, + uint32_t access_mask, + const char *key) +{ + const char **subkeys = NULL; + uint32_t num_subkeys = 0; + struct policy_handle key_hnd; + struct winreg_String wkey; + WERROR result = WERR_OK; + NTSTATUS status; + uint32_t i; + + ZERO_STRUCT(key_hnd); + wkey.name = key; + + DEBUG(2, ("winreg_printer_delete_subkeys: delete key %s\n", key)); + /* open the key */ + status = rpccli_winreg_OpenKey(pipe_handle, + mem_ctx, + hive_handle, + wkey, + 0, + access_mask, + &key_hnd, + &result); + if (!NT_STATUS_IS_OK(status)) { + DEBUG(0, ("winreg_printer_delete_subkeys: Could not open key %s: %s\n", + wkey.name, nt_errstr(status))); + if (!W_ERROR_IS_OK(result)) { + return result; + } + return ntstatus_to_werror(status); + } + + result = winreg_printer_enumkeys(mem_ctx, + pipe_handle, + &key_hnd, + &num_subkeys, + &subkeys); + if (!W_ERROR_IS_OK(result)) { + goto done; + } + + for (i = 0; i < num_subkeys; i++) { + /* create key + subkey */ + char *subkey = talloc_asprintf(mem_ctx, "%s\\%s", key, subkeys[i]); + if (subkey == NULL) { + goto done; + } + + DEBUG(2, ("winreg_printer_delete_subkeys: delete subkey %s\n", subkey)); + result = winreg_printer_delete_subkeys(mem_ctx, + pipe_handle, + hive_handle, + access_mask, + subkey); + if (!W_ERROR_IS_OK(result)) { + goto done; + } + } + + if (is_valid_policy_hnd(&key_hnd)) { + rpccli_winreg_CloseKey(pipe_handle, mem_ctx, &key_hnd, NULL); + } + + wkey.name = key; + + status = rpccli_winreg_DeleteKey(pipe_handle, + mem_ctx, + hive_handle, + wkey, + &result); + +done: + if (is_valid_policy_hnd(&key_hnd)) { + rpccli_winreg_CloseKey(pipe_handle, mem_ctx, &key_hnd, NULL); + } + + return result; +} + /******************************************************************** Public winreg function for spoolss ********************************************************************/ @@ -888,3 +989,79 @@ done: TALLOC_FREE(tmp_ctx); return result; } + +/* Delete a key with subkeys of a given printer. */ +WERROR winreg_delete_printer_key(struct pipes_struct *p, + const char *printer, + const char *key) +{ + uint32_t access_mask = SEC_FLAG_MAXIMUM_ALLOWED; + struct rpc_pipe_client *winreg_pipe = NULL; + struct policy_handle hive_hnd, key_hnd; + char *keyname; + WERROR result; + TALLOC_CTX *tmp_ctx; + + tmp_ctx = talloc_new(p->mem_ctx); + if (tmp_ctx == NULL) { + return WERR_NOMEM; + } + + result = winreg_printer_openkey(tmp_ctx, + p->server_info, + &winreg_pipe, + printer, + key, + false, + access_mask, + &hive_hnd, + &key_hnd); + if (!W_ERROR_IS_OK(result)) { + /* key doesn't exist */ + if (W_ERROR_EQUAL(result, WERR_BADFILE)) { + result = WERR_OK; + goto done; + } + + DEBUG(0, ("winreg_delete_printer_key: Could not open key %s: %s\n", + key, win_errstr(result))); + goto done; + } + + if (is_valid_policy_hnd(&key_hnd)) { + rpccli_winreg_CloseKey(winreg_pipe, tmp_ctx, &key_hnd, NULL); + } + + keyname = talloc_asprintf(tmp_ctx, + "SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Print\\Printers\\%s\\%s", + printer, + key); + if (keyname == NULL) { + result = WERR_NOMEM; + goto done; + } + + result = winreg_printer_delete_subkeys(tmp_ctx, + winreg_pipe, + &hive_hnd, + access_mask, + keyname); + if (!W_ERROR_IS_OK(result)) { + DEBUG(0, ("winreg_delete_printer_key: Could not delete key %s: %s\n", + key, win_errstr(result))); + goto done; + } + +done: + if (winreg_pipe != NULL) { + if (is_valid_policy_hnd(&key_hnd)) { + rpccli_winreg_CloseKey(winreg_pipe, tmp_ctx, &key_hnd, NULL); + } + if (is_valid_policy_hnd(&hive_hnd)) { + rpccli_winreg_CloseKey(winreg_pipe, tmp_ctx, &hive_hnd, NULL); + } + } + + TALLOC_FREE(tmp_ctx); + return result; +} diff --git a/source3/rpc_server/srv_spoolss_util.h b/source3/rpc_server/srv_spoolss_util.h index 21e3d3581b..0ef57bca3d 100644 --- a/source3/rpc_server/srv_spoolss_util.h +++ b/source3/rpc_server/srv_spoolss_util.h @@ -152,4 +152,22 @@ WERROR winreg_enum_printer_key(struct pipes_struct *p, uint32_t *pnum_subkeys, const char ***psubkeys); +/** + * @internal + * + * @brief Delete a key with subkeys of a given printer. + * + * @param[in] p The pipes structure to be able to open a new pipe. + * + * @param[in] printer The printer name. + * + * @param[in] key The key of the printer to delete. + * + * @return On success WERR_OK, a corresponding DOS error is + * something went wrong. + */ +WERROR winreg_delete_printer_key(struct pipes_struct *p, + const char *printer, + const char *key); + #endif /* _SRV_SPOOLSS_UITL_H */ |