| /** |
| * @file cmd_data.c |
| * @author Michal Vasko <mvasko@cesnet.cz> |
| * @author Radek Krejci <rkrejci@cesnet.cz> |
| * @brief 'data' command of the libyang's yanglint tool. |
| * |
| * Copyright (c) 2015-2020 CESNET, z.s.p.o. |
| * |
| * This source code is licensed under BSD 3-Clause License (the "License"). |
| * You may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * https://opensource.org/licenses/BSD-3-Clause |
| */ |
| |
| #define _GNU_SOURCE |
| |
| #include "cmd.h" |
| |
| #include <errno.h> |
| #include <getopt.h> |
| #include <stdint.h> |
| #include <stdio.h> |
| #include <string.h> |
| #include <strings.h> |
| |
| #include "libyang.h" |
| |
| #include "common.h" |
| |
| void |
| cmd_data_help(void) |
| { |
| printf("Usage: data [-emn] [-t TYPE]\n" |
| " [-F FORMAT] [-f FORMAT] [-d DEFAULTS] [-o OUTFILE] <data1> ...\n" |
| " data [-n] -t (rpc | notif | reply) [-O FILE]\n" |
| " [-F FORMAT] [-f FORMAT] [-d DEFAULTS] [-o OUTFILE] <data1> ...\n" |
| " data [-en] [-t TYPE] [-F FORMAT] -x XPATH [-o OUTFILE] <data1> ...\n" |
| " Parse, validate and optionally print data instances\n\n" |
| |
| " -t TYPE, --type=TYPE\n" |
| " Specify data tree type in the input data file(s):\n" |
| " data - Complete datastore with status data (default type).\n" |
| " config - Configuration datastore (without status data).\n" |
| " get - Result of the NETCONF <get> operation.\n" |
| " getconfig - Result of the NETCONF <get-config> operation.\n" |
| " edit - Content of the NETCONF <edit-config> operation.\n" |
| " rpc - Content of the NETCONF <rpc> message, defined as YANG's\n" |
| " RPC/Action input statement.\n" |
| " reply - Reply to the RPC/Action. Note that the reply data are\n" |
| " expected inside a container representing the original\n" |
| " RPC/Action. This is necessary to identify appropriate\n" |
| " data definitions in the schema module.\n" |
| " notif - Notification instance (content of the <notification>\n" |
| " element without <eventTime>).\n\n" |
| |
| " -e, --present Validate only with the schema modules whose data actually\n" |
| " exist in the provided input data files. Takes effect only\n" |
| " with the 'data' or 'config' TYPEs. Used to avoid requiring\n" |
| " mandatory nodes from modules which data are not present in the\n" |
| " provided input data files.\n" |
| " -m, --merge Merge input data files into a single tree and validate at\n" |
| " once.The option has effect only for 'data' and 'config' TYPEs.\n" |
| " In case of using -x option, the data are always merged.\n" |
| " -n, --not-strict\n" |
| " Do not require strict data parsing (silently skip unknown data),\n" |
| " has no effect for schemas.\n\n" |
| " -O FILE, --operational=FILE\n" |
| " Provide optional data to extend validation of the 'rpc',\n" |
| " 'reply' or 'notif' TYPEs. The FILE is supposed to contain\n" |
| " the :running configuration datastore and state data\n" |
| " (operational datastore) referenced from the RPC/Notification.\n\n" |
| |
| " -f FORMAT, --format=FORMAT\n" |
| " Print the data in one of the following formats:\n" |
| " xml, json, lyb\n" |
| " Note that the LYB format requires the -o option specified.\n" |
| " -F FORMAT, --in-format=FORMAT\n" |
| " Load the data in one of the following formats:\n" |
| " xml, json, lyb\n" |
| " If input format not specified, it is detected from the file extension.\n" |
| " -d MODE, --default=MODE\n" |
| " Print data with default values, according to the MODE\n" |
| " (to print attributes, ietf-netconf-with-defaults model\n" |
| " must be loaded):\n" |
| " all - Add missing default nodes.\n" |
| " all-tagged - Add missing default nodes and mark all the default\n" |
| " nodes with the attribute.\n" |
| " trim - Remove all nodes with a default value.\n" |
| " implicit-tagged - Add missing nodes and mark them with the attribute.\n" |
| " -o OUTFILE, --output=OUTFILE\n" |
| " Write the output to OUTFILE instead of stdout.\n\n" |
| |
| " -x XPATH, --xpath=XPATH\n" |
| " Evaluate XPATH expression and print the nodes satysfying the.\n" |
| " expression. The output format is specific and the option cannot\n" |
| " be combined with the -f and -d options. Also all the data\n" |
| " inputs are merged into a single data tree where the expression\n" |
| " is evaluated, so the -m option is always set implicitly.\n\n"); |
| |
| } |
| |
| void |
| cmd_data(struct ly_ctx **ctx, const char *cmdline) |
| { |
| int argc = 0; |
| char **argv = NULL; |
| int opt, opt_index; |
| struct option options[] = { |
| {"defaults", required_argument, NULL, 'd'}, |
| {"present", no_argument, NULL, 'e'}, |
| {"format", required_argument, NULL, 'f'}, |
| {"in-format", required_argument, NULL, 'F'}, |
| {"help", no_argument, NULL, 'h'}, |
| {"merge", no_argument, NULL, 'm'}, |
| {"output", required_argument, NULL, 'o'}, |
| {"operational", required_argument, NULL, 'O'}, |
| {"not-strict", no_argument, NULL, 'n'}, |
| {"type", required_argument, NULL, 't'}, |
| {"xpath", required_argument, NULL, 'x'}, |
| {NULL, 0, NULL, 0} |
| }; |
| |
| uint8_t data_merge = 0; |
| uint32_t options_print = 0; |
| uint32_t options_parse = YL_DEFAULT_DATA_PARSE_OPTIONS; |
| uint32_t options_validate = 0; |
| enum lyd_type data_type = 0; |
| uint8_t data_type_set = 0; |
| LYD_FORMAT outformat = LYD_UNKNOWN; |
| LYD_FORMAT informat = LYD_UNKNOWN; |
| struct ly_out *out = NULL; |
| struct cmdline_file *operational = NULL; |
| struct ly_set inputs = {0}; |
| struct ly_set xpaths = {0}; |
| |
| if (parse_cmdline(cmdline, &argc, &argv)) { |
| goto cleanup; |
| } |
| |
| while ((opt = getopt_long(argc, argv, "d:ef:F:hmo:O:r:nt:x:", options, &opt_index)) != -1) { |
| switch (opt) { |
| case 'd': /* --default */ |
| if (!strcasecmp(optarg, "all")) { |
| options_print = (options_print & ~LYD_PRINT_WD_MASK) | LYD_PRINT_WD_ALL; |
| } else if (!strcasecmp(optarg, "all-tagged")) { |
| options_print = (options_print & ~LYD_PRINT_WD_MASK) | LYD_PRINT_WD_ALL_TAG; |
| } else if (!strcasecmp(optarg, "trim")) { |
| options_print = (options_print & ~LYD_PRINT_WD_MASK) | LYD_PRINT_WD_TRIM; |
| } else if (!strcasecmp(optarg, "implicit-tagged")) { |
| options_print = (options_print & ~LYD_PRINT_WD_MASK) | LYD_PRINT_WD_IMPL_TAG; |
| } else { |
| YLMSG_E("Unknown default mode %s\n", optarg); |
| cmd_data_help(); |
| goto cleanup; |
| } |
| break; |
| case 'f': /* --format */ |
| if (!strcasecmp(optarg, "xml")) { |
| outformat = LYD_XML; |
| } else if (!strcasecmp(optarg, "json")) { |
| outformat = LYD_JSON; |
| } else if (!strcasecmp(optarg, "lyb")) { |
| outformat = LYD_LYB; |
| } else { |
| YLMSG_E("Unknown output format %s\n", optarg); |
| cmd_data_help(); |
| goto cleanup; |
| } |
| break; |
| case 'F': /* --in-format */ |
| if (!strcasecmp(optarg, "xml")) { |
| informat = LYD_XML; |
| } else if (!strcasecmp(optarg, "json")) { |
| informat = LYD_JSON; |
| } else if (!strcasecmp(optarg, "lyb")) { |
| informat = LYD_LYB; |
| } else { |
| YLMSG_E("Unknown input format %s\n", optarg); |
| cmd_data_help(); |
| goto cleanup; |
| } |
| break; |
| case 'o': /* --output */ |
| if (out) { |
| YLMSG_E("Only a single output can be specified.\n"); |
| goto cleanup; |
| } else { |
| if (ly_out_new_filepath(optarg, &out)) { |
| YLMSG_E("Unable open output file %s (%s)\n", optarg, strerror(errno)); |
| goto cleanup; |
| } |
| } |
| break; |
| case 'O': { /* --operational */ |
| struct ly_in *in; |
| LYD_FORMAT f; |
| |
| if (operational) { |
| YLMSG_E("The operational datastore (-O) cannot be set multiple times.\n"); |
| goto cleanup; |
| } |
| if (get_input(optarg, NULL, &f, &in)) { |
| goto cleanup; |
| } |
| operational = fill_cmdline_file(NULL, in, optarg, f); |
| break; |
| } /* case 'O' */ |
| |
| case 'e': /* --present */ |
| options_validate |= LYD_VALIDATE_PRESENT; |
| break; |
| case 'm': /* --merge */ |
| data_merge = 1; |
| break; |
| case 'n': /* --not-strict */ |
| options_parse &= ~LYD_PARSE_STRICT; |
| break; |
| case 't': /* --type */ |
| if (data_type_set) { |
| YLMSG_E("The data type (-t) cannot be set multiple times.\n"); |
| goto cleanup; |
| } |
| |
| if (!strcasecmp(optarg, "config")) { |
| options_parse |= LYD_PARSE_NO_STATE; |
| options_validate |= LYD_VALIDATE_NO_STATE; |
| } else if (!strcasecmp(optarg, "get")) { |
| options_parse |= LYD_PARSE_ONLY; |
| } else if (!strcasecmp(optarg, "getconfig") || !strcasecmp(optarg, "get-config")) { |
| options_parse |= LYD_PARSE_ONLY | LYD_PARSE_NO_STATE; |
| } else if (!strcasecmp(optarg, "edit")) { |
| options_parse |= LYD_PARSE_ONLY; |
| } else if (!strcasecmp(optarg, "rpc") || !strcasecmp(optarg, "action")) { |
| data_type = LYD_TYPE_RPC_YANG; |
| } else if (!strcasecmp(optarg, "reply") || !strcasecmp(optarg, "rpcreply")) { |
| data_type = LYD_TYPE_REPLY_YANG; |
| } else if (!strcasecmp(optarg, "notif") || !strcasecmp(optarg, "notification")) { |
| data_type = LYD_TYPE_NOTIF_YANG; |
| } else if (!strcasecmp(optarg, "data")) { |
| /* default option */ |
| } else { |
| YLMSG_E("Unknown data tree type %s.\n", optarg); |
| cmd_data_help(); |
| goto cleanup; |
| } |
| |
| data_type_set = 1; |
| break; |
| |
| case 'x': /* --xpath */ |
| if (ly_set_add(&xpaths, optarg, 0, NULL)) { |
| YLMSG_E("Storing XPath \"%s\" failed.\n", optarg); |
| goto cleanup; |
| } |
| break; |
| |
| case 'h': /* --help */ |
| cmd_data_help(); |
| goto cleanup; |
| default: |
| YLMSG_E("Unknown option.\n"); |
| goto cleanup; |
| } |
| } |
| |
| if (optind == argc) { |
| YLMSG_E("Missing the data file to process.\n"); |
| goto cleanup; |
| } |
| |
| if (data_merge) { |
| if (data_type || (options_parse & LYD_PARSE_ONLY)) { |
| /* switch off the option, incompatible input data type */ |
| data_merge = 0; |
| } else { |
| /* postpone validation after the merge of all the input data */ |
| options_parse |= LYD_PARSE_ONLY; |
| } |
| } else if (xpaths.count) { |
| data_merge = 1; |
| } |
| |
| if (xpaths.count && outformat) { |
| YLMSG_E("The --format option cannot be combined with --xpath option.\n"); |
| cmd_data_help(); |
| goto cleanup; |
| } |
| |
| if (operational && !data_type) { |
| YLMSG_W("Operational datastore takes effect only with RPCs/Actions/Replies/Notifications input data types.\n"); |
| free_cmdline_file(operational); |
| operational = NULL; |
| } |
| |
| /* process input data files provided as standalone command line arguments */ |
| for (int i = 0; i < argc - optind; i++) { |
| struct ly_in *in; |
| |
| if (get_input(argv[optind + i], NULL, &informat, &in)) { |
| goto cleanup; |
| } |
| |
| if (!fill_cmdline_file(&inputs, in, argv[optind + i], informat)) { |
| ly_in_free(in, 1); |
| goto cleanup; |
| } |
| } |
| |
| /* default output stream */ |
| if (!out) { |
| if (ly_out_new_file(stdout, &out)) { |
| YLMSG_E("Unable to set stdout as output.\n"); |
| goto cleanup; |
| } |
| } |
| |
| /* parse, validate and print data */ |
| if (process_data(*ctx, data_type, data_merge, outformat, out, options_parse, options_validate, options_print, |
| operational, NULL, &inputs, &xpaths)) { |
| goto cleanup; |
| } |
| |
| cleanup: |
| ly_out_free(out, NULL, 0); |
| ly_set_erase(&inputs, free_cmdline_file); |
| ly_set_erase(&xpaths, NULL); |
| free_cmdline_file(operational); |
| free_cmdline(argv); |
| } |