diff options
Diffstat (limited to '')
| -rw-r--r-- | src/utils/knotc/commands.c | 1138 |
1 files changed, 1138 insertions, 0 deletions
diff --git a/src/utils/knotc/commands.c b/src/utils/knotc/commands.c new file mode 100644 index 0000000..f0be025 --- /dev/null +++ b/src/utils/knotc/commands.c @@ -0,0 +1,1138 @@ +/* Copyright (C) 2020 CZ.NIC, z.s.p.o. <knot-dns@labs.nic.cz> + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <https://www.gnu.org/licenses/>. + */ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#include "libknot/libknot.h" +#include "knot/common/log.h" +#include "knot/ctl/commands.h" +#include "knot/conf/conf.h" +#include "knot/conf/confdb.h" +#include "knot/zone/zonefile.h" +#include "knot/zone/zone-load.h" +#include "contrib/macros.h" +#include "contrib/string.h" +#include "contrib/strtonum.h" +#include "contrib/openbsd/strlcat.h" +#include "utils/knotc/commands.h" + +#define CMD_EXIT "exit" + +#define CMD_STATUS "status" +#define CMD_STOP "stop" +#define CMD_RELOAD "reload" +#define CMD_STATS "stats" + +#define CMD_ZONE_CHECK "zone-check" +#define CMD_ZONE_STATUS "zone-status" +#define CMD_ZONE_RELOAD "zone-reload" +#define CMD_ZONE_REFRESH "zone-refresh" +#define CMD_ZONE_RETRANSFER "zone-retransfer" +#define CMD_ZONE_NOTIFY "zone-notify" +#define CMD_ZONE_FLUSH "zone-flush" +#define CMD_ZONE_BACKUP "zone-backup" +#define CMD_ZONE_RESTORE "zone-restore" +#define CMD_ZONE_SIGN "zone-sign" +#define CMD_ZONE_KEY_ROLL "zone-key-rollover" +#define CMD_ZONE_KSK_SBM "zone-ksk-submitted" +#define CMD_ZONE_FREEZE "zone-freeze" +#define CMD_ZONE_THAW "zone-thaw" + +#define CMD_ZONE_READ "zone-read" +#define CMD_ZONE_BEGIN "zone-begin" +#define CMD_ZONE_COMMIT "zone-commit" +#define CMD_ZONE_ABORT "zone-abort" +#define CMD_ZONE_DIFF "zone-diff" +#define CMD_ZONE_GET "zone-get" +#define CMD_ZONE_SET "zone-set" +#define CMD_ZONE_UNSET "zone-unset" +#define CMD_ZONE_PURGE "zone-purge" +#define CMD_ZONE_STATS "zone-stats" + +#define CMD_CONF_INIT "conf-init" +#define CMD_CONF_CHECK "conf-check" +#define CMD_CONF_IMPORT "conf-import" +#define CMD_CONF_EXPORT "conf-export" +#define CMD_CONF_LIST "conf-list" +#define CMD_CONF_READ "conf-read" +#define CMD_CONF_BEGIN "conf-begin" +#define CMD_CONF_COMMIT "conf-commit" +#define CMD_CONF_ABORT "conf-abort" +#define CMD_CONF_DIFF "conf-diff" +#define CMD_CONF_GET "conf-get" +#define CMD_CONF_SET "conf-set" +#define CMD_CONF_UNSET "conf-unset" + +#define CTL_LOG_STR "failed to control" + +#define CTL_SEND(type, data) \ + ret = knot_ctl_send(args->ctl, (type), (data)); \ + if (ret != KNOT_EOK) { \ + log_error(CTL_LOG_STR" (%s)", knot_strerror(ret)); \ + return ret; \ + } + +#define CTL_SEND_DATA CTL_SEND(KNOT_CTL_TYPE_DATA, &data) +#define CTL_SEND_BLOCK CTL_SEND(KNOT_CTL_TYPE_BLOCK, NULL) + +static int check_args(cmd_args_t *args, int min, int max) +{ + if (max == 0 && args->argc > 0) { + log_error("command doesn't take arguments"); + return KNOT_EINVAL; + } else if (min == max && args->argc != min) { + log_error("command requires %i arguments", min); + return KNOT_EINVAL; + } else if (args->argc < min) { + log_error("command requires at least %i arguments", min); + return KNOT_EINVAL; + } else if (max > 0 && args->argc > max) { + log_error("command takes at most %i arguments", max); + return KNOT_EINVAL; + } + + return KNOT_EOK; +} + +static int check_conf_args(cmd_args_t *args) +{ + // Mask relevant flags. + cmd_flag_t flags = args->desc->flags; + flags &= CMD_FOPT_ITEM | CMD_FREQ_ITEM | CMD_FOPT_DATA; + + switch (args->argc) { + case 0: + if (flags == CMD_FNONE || (flags & CMD_FOPT_ITEM)) { + return KNOT_EOK; + } + break; + case 1: + if (flags & (CMD_FOPT_ITEM | CMD_FREQ_ITEM)) { + return KNOT_EOK; + } + break; + default: + if (flags != CMD_FNONE) { + return KNOT_EOK; + } + break; + } + + log_error("invalid number of arguments"); + + return KNOT_EINVAL; +} + +static int get_conf_key(const char *key, knot_ctl_data_t *data) +{ + // Get key0. + const char *key0 = key; + + // Check for id. + char *id = strchr(key, '['); + if (id != NULL) { + // Separate key0 and id. + *id++ = '\0'; + + // Check for id end. + char *id_end = id; + while ((id_end = strchr(id_end, ']')) != NULL) { + // Check for escaped character. + if (*(id_end - 1) != '\\') { + break; + } + id_end++; + } + + // Check for unclosed id. + if (id_end == NULL) { + log_error("(missing bracket after identifier) %s", id); + return KNOT_EINVAL; + } + + // Separate id and key1. + *id_end = '\0'; + + key = id_end + 1; + + // Key1 or nothing must follow. + if (*key != '.' && *key != '\0') { + log_error("(unexpected token) %s", key); + return KNOT_EINVAL; + } + } + + // Check for key1. + char *key1 = strchr(key, '.'); + if (key1 != NULL) { + // Separate key0/id and key1. + *key1++ = '\0'; + + if (*key1 == '\0') { + log_error("(missing item specification)"); + return KNOT_EINVAL; + } + } + + (*data)[KNOT_CTL_IDX_SECTION] = key0; + (*data)[KNOT_CTL_IDX_ITEM] = key1; + (*data)[KNOT_CTL_IDX_ID] = id; + + return KNOT_EOK; +} + +static void format_data(ctl_cmd_t cmd, knot_ctl_type_t data_type, + knot_ctl_data_t *data, bool *empty) +{ + const char *error = (*data)[KNOT_CTL_IDX_ERROR]; + const char *flags = (*data)[KNOT_CTL_IDX_FLAGS]; + const char *key0 = (*data)[KNOT_CTL_IDX_SECTION]; + const char *key1 = (*data)[KNOT_CTL_IDX_ITEM]; + const char *id = (*data)[KNOT_CTL_IDX_ID]; + const char *zone = (*data)[KNOT_CTL_IDX_ZONE]; + const char *owner = (*data)[KNOT_CTL_IDX_OWNER]; + const char *ttl = (*data)[KNOT_CTL_IDX_TTL]; + const char *type = (*data)[KNOT_CTL_IDX_TYPE]; + const char *value = (*data)[KNOT_CTL_IDX_DATA]; + + const char *sign = NULL; + if (ctl_has_flag(flags, CTL_FLAG_ADD)) { + sign = CTL_FLAG_ADD; + } else if (ctl_has_flag(flags, CTL_FLAG_REM)) { + sign = CTL_FLAG_REM; + } + + switch (cmd) { + case CTL_STATUS: + if (error != NULL) { + printf("error: (%s)%s%s", error, + (type != NULL) ? " " : "", + (type != NULL) ? type : ""); + } else if (value != NULL) { + printf("%s", value); + *empty = false; + } + break; + case CTL_STOP: + case CTL_RELOAD: + case CTL_CONF_BEGIN: + case CTL_CONF_ABORT: + // Only error message is expected here. + if (error != NULL) { + printf("error: (%s)", error); + } + break; + case CTL_ZONE_STATUS: + case CTL_ZONE_RELOAD: + case CTL_ZONE_REFRESH: + case CTL_ZONE_RETRANSFER: + case CTL_ZONE_NOTIFY: + case CTL_ZONE_FLUSH: + case CTL_ZONE_BACKUP: + case CTL_ZONE_RESTORE: + case CTL_ZONE_SIGN: + case CTL_ZONE_KEY_ROLL: + case CTL_ZONE_KSK_SBM: + case CTL_ZONE_FREEZE: + case CTL_ZONE_THAW: + case CTL_ZONE_BEGIN: + case CTL_ZONE_COMMIT: + case CTL_ZONE_ABORT: + case CTL_ZONE_PURGE: + if (data_type == KNOT_CTL_TYPE_DATA) { + printf("%s%s%s%s%s%s%s%s", + (!(*empty) ? "\n" : ""), + (error != NULL ? "error: " : ""), + (zone != NULL ? "[" : ""), + (zone != NULL ? zone : ""), + (zone != NULL ? "]" : ""), + (error != NULL ? " (" : ""), + (error != NULL ? error : ""), + (error != NULL ? ")" : "")); + *empty = false; + } + if (cmd == CTL_ZONE_STATUS && type != NULL) { + printf("%s %s: %s", + (data_type != KNOT_CTL_TYPE_DATA ? " |" : ""), + type, value); + } + break; + case CTL_CONF_COMMIT: // Can return a check error context. + case CTL_CONF_LIST: + case CTL_CONF_READ: + case CTL_CONF_DIFF: + case CTL_CONF_GET: + case CTL_CONF_SET: + case CTL_CONF_UNSET: + if (data_type == KNOT_CTL_TYPE_DATA) { + printf("%s%s%s%s%s%s%s%s%s%s%s%s", + (!(*empty) ? "\n" : ""), + (error != NULL ? "error: (" : ""), + (error != NULL ? error : ""), + (error != NULL ? ") " : ""), + (sign != NULL ? sign : ""), + (key0 != NULL ? key0 : ""), + (id != NULL ? "[" : ""), + (id != NULL ? id : ""), + (id != NULL ? "]" : ""), + (key1 != NULL ? "." : ""), + (key1 != NULL ? key1 : ""), + (value != NULL ? " =" : "")); + *empty = false; + } + if (value != NULL) { + printf(" %s", value); + } + break; + case CTL_ZONE_READ: + case CTL_ZONE_DIFF: + case CTL_ZONE_GET: + case CTL_ZONE_SET: + case CTL_ZONE_UNSET: + printf("%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s", + (!(*empty) ? "\n" : ""), + (error != NULL ? "error: (" : ""), + (error != NULL ? error : ""), + (error != NULL ? ") " : ""), + (zone != NULL ? "[" : ""), + (zone != NULL ? zone : ""), + (zone != NULL ? "] " : ""), + (sign != NULL ? sign : ""), + (owner != NULL ? owner : ""), + (ttl != NULL ? " " : ""), + (ttl != NULL ? ttl : ""), + (type != NULL ? " " : ""), + (type != NULL ? type : ""), + (value != NULL ? " " : ""), + (value != NULL ? value : "")); + *empty = false; + break; + case CTL_STATS: + case CTL_ZONE_STATS: + printf("%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s", + (!(*empty) ? "\n" : ""), + (error != NULL ? "error: (" : ""), + (error != NULL ? error : ""), + (error != NULL ? ") " : ""), + (zone != NULL ? "[" : ""), + (zone != NULL ? zone : ""), + (zone != NULL ? "] " : ""), + (key0 != NULL ? key0 : ""), + (key1 != NULL ? "." : ""), + (key1 != NULL ? key1 : ""), + (id != NULL ? "[" : ""), + (id != NULL ? id : ""), + (id != NULL ? "]" : ""), + (value != NULL ? " = " : ""), + (value != NULL ? value : "")); + *empty = false; + break; + default: + assert(0); + } +} + +static void format_block(ctl_cmd_t cmd, bool failed, bool empty) +{ + switch (cmd) { + case CTL_STATUS: + printf("%s\n", (failed || !empty) ? "" : "Running"); + break; + case CTL_STOP: + printf("%s\n", failed ? "" : "Stopped"); + break; + case CTL_RELOAD: + printf("%s\n", failed ? "" : "Reloaded"); + break; + case CTL_CONF_BEGIN: + case CTL_CONF_COMMIT: + case CTL_CONF_ABORT: + case CTL_CONF_SET: + case CTL_CONF_UNSET: + case CTL_ZONE_RELOAD: + case CTL_ZONE_REFRESH: + case CTL_ZONE_RETRANSFER: + case CTL_ZONE_NOTIFY: + case CTL_ZONE_FLUSH: + case CTL_ZONE_BACKUP: + case CTL_ZONE_RESTORE: + case CTL_ZONE_SIGN: + case CTL_ZONE_KEY_ROLL: + case CTL_ZONE_KSK_SBM: + case CTL_ZONE_FREEZE: + case CTL_ZONE_THAW: + case CTL_ZONE_BEGIN: + case CTL_ZONE_COMMIT: + case CTL_ZONE_ABORT: + case CTL_ZONE_SET: + case CTL_ZONE_UNSET: + case CTL_ZONE_PURGE: + printf("%s\n", failed ? "" : "OK"); + break; + case CTL_ZONE_STATUS: + case CTL_ZONE_READ: + case CTL_ZONE_DIFF: + case CTL_ZONE_GET: + case CTL_CONF_LIST: + case CTL_CONF_READ: + case CTL_CONF_DIFF: + case CTL_CONF_GET: + case CTL_ZONE_STATS: + case CTL_STATS: + printf("%s", empty ? "" : "\n"); + break; + default: + assert(0); + } +} + +static int ctl_receive(cmd_args_t *args) +{ + bool failed = false; + bool empty = true; + + while (true) { + knot_ctl_type_t type; + knot_ctl_data_t data; + + int ret = knot_ctl_receive(args->ctl, &type, &data); + if (ret != KNOT_EOK) { + log_error(CTL_LOG_STR" (%s)", knot_strerror(ret)); + return ret; + } + + switch (type) { + case KNOT_CTL_TYPE_END: + log_error(CTL_LOG_STR" (%s)", knot_strerror(KNOT_EMALF)); + return KNOT_EMALF; + case KNOT_CTL_TYPE_BLOCK: + format_block(args->desc->cmd, failed, empty); + return failed ? KNOT_ERROR : KNOT_EOK; + case KNOT_CTL_TYPE_DATA: + case KNOT_CTL_TYPE_EXTRA: + format_data(args->desc->cmd, type, &data, &empty); + break; + default: + assert(0); + return KNOT_EINVAL; + } + + if (data[KNOT_CTL_IDX_ERROR] != NULL) { + failed = true; + } + } + + return KNOT_EOK; +} + +static int cmd_ctl(cmd_args_t *args) +{ + int ret = check_args(args, 0, (args->desc->cmd == CTL_STATUS ? 1 : 0)); + if (ret != KNOT_EOK) { + return ret; + } + + knot_ctl_data_t data = { + [KNOT_CTL_IDX_CMD] = ctl_cmd_to_str(args->desc->cmd), + [KNOT_CTL_IDX_FLAGS] = args->flags, + [KNOT_CTL_IDX_TYPE] = args->argc > 0 ? args->argv[0] : NULL + }; + + CTL_SEND_DATA + CTL_SEND_BLOCK + + return ctl_receive(args); +} + +static int set_stats_items(cmd_args_t *args, knot_ctl_data_t *data) +{ + int min_args, max_args; + switch (args->desc->cmd) { + case CTL_STATS: min_args = 0; max_args = 1; break; + case CTL_ZONE_STATS: min_args = 1; max_args = 2; break; + default: + assert(0); + return KNOT_EINVAL; + } + + // Check the number of arguments. + int ret = check_args(args, min_args, max_args); + if (ret != KNOT_EOK) { + return ret; + } + + int idx = 0; + + // Set ZONE name. + if (args->argc > idx && args->desc->cmd == CTL_ZONE_STATS) { + if (strcmp(args->argv[idx], "--") != 0) { + (*data)[KNOT_CTL_IDX_ZONE] = args->argv[idx]; + } + idx++; + } + + if (args->argc > idx) { + (*data)[KNOT_CTL_IDX_SECTION] = args->argv[idx]; + + char *item = strchr(args->argv[idx], '.'); + if (item != NULL) { + // Separate section and item. + *item++ = '\0'; + (*data)[KNOT_CTL_IDX_ITEM] = item; + } + } + + return KNOT_EOK; +} + +static int cmd_stats_ctl(cmd_args_t *args) +{ + knot_ctl_data_t data = { + [KNOT_CTL_IDX_CMD] = ctl_cmd_to_str(args->desc->cmd), + [KNOT_CTL_IDX_FLAGS] = args->flags, + }; + + int ret = set_stats_items(args, &data); + if (ret != KNOT_EOK) { + return ret; + } + + CTL_SEND_DATA + CTL_SEND_BLOCK + + return ctl_receive(args); +} + +static int zone_exec(cmd_args_t *args, int (*fcn)(const knot_dname_t *, void *), + void *data) +{ + bool failed = false; + + // Process specified zones. + if (args->argc > 0) { + knot_dname_storage_t id; + + for (int i = 0; i < args->argc; i++) { + if (knot_dname_from_str(id, args->argv[i], sizeof(id)) == NULL) { + log_zone_str_error(args->argv[i], "invalid name"); + failed = true; + continue; + } + knot_dname_to_lower(id); + + if (!conf_rawid_exists(conf(), C_ZONE, id, knot_dname_size(id))) { + log_zone_error(id, "%s", knot_strerror(KNOT_ENOZONE)); + failed = true; + continue; + } + + if (fcn(id, data) != KNOT_EOK) { + failed = true; + } + } + // Process all configured zones. + } else { + for (conf_iter_t iter = conf_iter(conf(), C_ZONE); + iter.code == KNOT_EOK; conf_iter_next(conf(), &iter)) { + conf_val_t val = conf_iter_id(conf(), &iter); + const knot_dname_t *id = conf_dname(&val); + + if (fcn(id, data) != KNOT_EOK) { + failed = true; + } + } + } + + return failed ? KNOT_ERROR : KNOT_EOK; +} + +static int zone_check(const knot_dname_t *dname, void *data) +{ + cmd_args_t *args = data; + + zone_contents_t *contents = NULL; + int ret = zone_load_contents(conf(), dname, &contents, args->force); + zone_contents_deep_free(contents); + return ret; +} + +static int cmd_zone_check(cmd_args_t *args) +{ + return zone_exec(args, zone_check, args); +} + +static int cmd_zone_key_roll_ctl(cmd_args_t *args) +{ + int ret = check_args(args, 2, 2); + if (ret != KNOT_EOK) { + return ret; + } + + knot_ctl_data_t data = { + [KNOT_CTL_IDX_CMD] = ctl_cmd_to_str(args->desc->cmd), + [KNOT_CTL_IDX_FLAGS] = args->flags, + [KNOT_CTL_IDX_ZONE] = args->argv[0], + [KNOT_CTL_IDX_TYPE] = args->argv[1], + }; + + CTL_SEND_DATA + CTL_SEND_BLOCK + + return ctl_receive(args); +} + +static int cmd_zone_ctl(cmd_args_t *args) +{ + knot_ctl_data_t data = { + [KNOT_CTL_IDX_CMD] = ctl_cmd_to_str(args->desc->cmd), + [KNOT_CTL_IDX_FLAGS] = args->flags, + }; + + // Check the number of arguments. + int ret = check_args(args, (args->desc->flags & CMD_FREQ_ZONE) ? 1 : 0, -1); + if (ret != KNOT_EOK) { + return ret; + } + + if (args->desc->cmd == CTL_ZONE_PURGE && !args->force) { + log_error("force option required!"); + return KNOT_EDENIED; + } + + // Ignore all zones argument. + if (args->argc == 1 && strcmp(args->argv[0], "--") == 0) { + args->argc = 0; + } + + if (args->argc == 0) { + CTL_SEND_DATA + } + for (int i = 0; i < args->argc; i++) { + data[KNOT_CTL_IDX_ZONE] = args->argv[i]; + + CTL_SEND_DATA + } + + CTL_SEND_BLOCK + + return ctl_receive(args); +} + +#define MAX_FILTERS 7 + +typedef struct { + const char *name; + char id; + bool with_data; // Only ONE filter of each filter_desc_t may have data! +} filter_desc_t; + +const filter_desc_t zone_flush_filters[MAX_FILTERS] = { + { "+outdir", CTL_FILTER_FLUSH_OUTDIR, true }, +}; + +const filter_desc_t zone_backup_filters[MAX_FILTERS] = { + { "+backupdir", CTL_FILTER_FLUSH_OUTDIR, true }, + { "+journal", CTL_FILTER_PURGE_JOURNAL, false }, + { "+nozonefile", CTL_FILTER_PURGE_ZONEFILE, false }, +}; + +const filter_desc_t zone_status_filters[MAX_FILTERS] = { + { "+role", CTL_FILTER_STATUS_ROLE }, + { "+serial", CTL_FILTER_STATUS_SERIAL }, + { "+transaction", CTL_FILTER_STATUS_TRANSACTION }, + { "+freeze", CTL_FILTER_STATUS_FREEZE }, + { "+events", CTL_FILTER_STATUS_EVENTS }, +}; + +const filter_desc_t zone_purge_filters[MAX_FILTERS] = { + { "+expire", CTL_FILTER_PURGE_EXPIRE }, + { "+timers", CTL_FILTER_PURGE_TIMERS }, + { "+zonefile", CTL_FILTER_PURGE_ZONEFILE }, + { "+journal", CTL_FILTER_PURGE_JOURNAL }, + { "+kaspdb", CTL_FILTER_PURGE_KASPDB }, + { "+orphan", CTL_FILTER_PURGE_ORPHAN }, +}; + +const filter_desc_t null_filter = { 0 }; + +static const filter_desc_t *get_filter(ctl_cmd_t cmd, const char *filter_name) +{ + const filter_desc_t *fd = NULL; + switch (cmd) { + case CTL_ZONE_FLUSH: + fd = zone_flush_filters; + break; + case CTL_ZONE_BACKUP: + case CTL_ZONE_RESTORE: + fd = zone_backup_filters; + break; + case CTL_ZONE_STATUS: + fd = zone_status_filters; + break; + case CTL_ZONE_PURGE: + fd = zone_purge_filters; + break; + default: + return &null_filter; + } + for (size_t i = 0; i < MAX_FILTERS && fd[i].name != NULL; i++) { + if (strcmp(fd[i].name, filter_name) == 0) { + return &fd[i]; + } + } + return &null_filter; +} + +static int cmd_zone_filter_ctl(cmd_args_t *args) +{ + knot_ctl_data_t data = { + [KNOT_CTL_IDX_CMD] = ctl_cmd_to_str(args->desc->cmd), + [KNOT_CTL_IDX_FLAGS] = args->flags, + }; + + if (args->desc->cmd == CTL_ZONE_PURGE && !args->force) { + log_error("force option required!"); + return KNOT_EDENIED; + } + + char filter_buff[MAX_FILTERS + 1] = { 0 }; + + // First, process the filters. + for (int i = 0; i < args->argc; i++) { + if (args->argv[i][0] == '+') { + if (data[KNOT_CTL_IDX_FILTER] == NULL) { + data[KNOT_CTL_IDX_FILTER] = filter_buff; + } + char filter_id[2] = { get_filter(args->desc->cmd, args->argv[i])->id, 0 }; + if (filter_id[0] == '\0') { + log_error("unknown filter: %s", args->argv[i]); + return KNOT_EINVAL; + } + if (strchr(filter_buff, filter_id[0]) == NULL) { + assert(strlen(filter_buff) < MAX_FILTERS); + strlcat(filter_buff, filter_id, sizeof(filter_buff)); + } + if (get_filter(args->desc->cmd, args->argv[i])->with_data) { + data[KNOT_CTL_IDX_DATA] = args->argv[++i]; + } + } + } + + // Second, process zones. + int ret; + int sentzones = 0; + bool twodash = false; + for (int i = 0; i < args->argc; i++) { + // Skip filters. + if (args->argv[i][0] == '+') { + if (get_filter(args->desc->cmd, args->argv[i])->with_data) { + i++; + } + continue; + } + + if (strcmp(args->argv[i], "--") != 0) { + data[KNOT_CTL_IDX_ZONE] = args->argv[i]; + CTL_SEND_DATA + sentzones++; + } else { + twodash = true; + } + } + + if ((args->desc->flags & CMD_FREQ_ZONE) && sentzones == 0 && !twodash) { + log_error("zone must be specified (or -- for all zones)"); + return KNOT_EDENIED; + } + + if (sentzones == 0) { + CTL_SEND_DATA + } + CTL_SEND_BLOCK + + return ctl_receive(args); +} + +static int set_rdata(cmd_args_t *args, int pos, char *rdata, size_t rdata_len) +{ + rdata[0] = '\0'; + + for (int i = pos; i < args->argc; i++) { + if (i > pos && strlcat(rdata, " ", rdata_len) >= rdata_len) { + return KNOT_ESPACE; + } + if (strlcat(rdata, args->argv[i], rdata_len) >= rdata_len) { + return KNOT_ESPACE; + } + } + + return KNOT_EOK; +} + +static int set_node_items(cmd_args_t *args, knot_ctl_data_t *data, char *rdata, + size_t rdata_len) +{ + int min_args, max_args; + switch (args->desc->cmd) { + case CTL_ZONE_READ: + case CTL_ZONE_GET: min_args = 1; max_args = 3; break; + case CTL_ZONE_DIFF: min_args = 1; max_args = 1; break; + case CTL_ZONE_SET: min_args = 3; max_args = -1; break; + case CTL_ZONE_UNSET: min_args = 2; max_args = -1; break; + default: + assert(0); + return KNOT_EINVAL; + } + + // Check the number of arguments. + int ret = check_args(args, min_args, max_args); + if (ret != KNOT_EOK) { + return ret; + } + + int idx = 0; + + // Set ZONE name. + assert(args->argc > idx); + if (strcmp(args->argv[idx], "--") != 0) { + (*data)[KNOT_CTL_IDX_ZONE] = args->argv[idx]; + } + idx++; + + // Set OWNER name if specified. + if (args->argc > idx) { + (*data)[KNOT_CTL_IDX_OWNER] = args->argv[idx]; + idx++; + } + + // Set TTL only with an editing operation. + if (args->argc > idx) { + uint32_t num; + uint16_t type; + if (knot_rrtype_from_string(args->argv[idx], &type) != 0 && + str_to_u32(args->argv[idx], &num) == KNOT_EOK) { + switch (args->desc->cmd) { + case CTL_ZONE_SET: + case CTL_ZONE_UNSET: + (*data)[KNOT_CTL_IDX_TTL] = args->argv[idx]; + idx++; + break; + default: + break; + } + } + } + + // Set record TYPE if specified. + if (args->argc > idx) { + (*data)[KNOT_CTL_IDX_TYPE] = args->argv[idx]; + idx++; + } + + // Set record DATA if specified. + if (args->argc > idx) { + ret = set_rdata(args, idx, rdata, rdata_len); + if (ret != KNOT_EOK) { + return ret; + } + (*data)[KNOT_CTL_IDX_DATA] = rdata; + } + + return KNOT_EOK; +} + +static int cmd_zone_node_ctl(cmd_args_t *args) +{ + knot_ctl_data_t data = { + [KNOT_CTL_IDX_CMD] = ctl_cmd_to_str(args->desc->cmd), + [KNOT_CTL_IDX_FLAGS] = args->flags, + }; + + char rdata[65536]; // Maximum item size in libknot control interface. + + int ret = set_node_items(args, &data, rdata, sizeof(rdata)); + if (ret != KNOT_EOK) { + return ret; + } + + CTL_SEND_DATA + CTL_SEND_BLOCK + + return ctl_receive(args); +} + +static int cmd_conf_init(cmd_args_t *args) +{ + int ret = check_args(args, 0, 0); + if (ret != KNOT_EOK) { + return ret; + } + + ret = conf_db_check(conf(), &conf()->read_txn); + if ((ret >= KNOT_EOK || ret == KNOT_CONF_EVERSION)) { + if (ret != KNOT_EOK && !args->force) { + log_error("use force option to overwrite the existing " + "destination and ensure the server is not running!"); + return KNOT_EDENIED; + } + + ret = conf_import(conf(), "", false, false); + } + + if (ret == KNOT_EOK) { + log_info("OK"); + } else { + log_error("init (%s)", knot_strerror(ret)); + } + + return ret; +} + +static int cmd_conf_check(cmd_args_t *args) +{ + int ret = check_args(args, 0, 0); + if (ret != KNOT_EOK) { + return ret; + } + + log_info("Configuration is valid"); + + return 0; +} + +static int cmd_conf_import(cmd_args_t *args) +{ + int ret = check_args(args, 1, 1); + if (ret != KNOT_EOK) { + return ret; + } + + ret = conf_db_check(conf(), &conf()->read_txn); + if ((ret >= KNOT_EOK || ret == KNOT_CONF_EVERSION)) { + if (ret != KNOT_EOK && !args->force) { + log_error("use force option to overwrite the existing " + "destination and ensure the server is not running!"); + return KNOT_EDENIED; + } + + log_debug("importing confdb from file '%s'", args->argv[0]); + + ret = conf_import(conf(), args->argv[0], true, false); + } + + if (ret == KNOT_EOK) { + log_info("OK"); + } else { + log_error("import (%s)", knot_strerror(ret)); + } + + return ret; +} + +static int cmd_conf_export(cmd_args_t *args) +{ + int ret = check_args(args, 0, 1); + if (ret != KNOT_EOK) { + return ret; + } + + // Stdout is the default output file. + const char *file_name = NULL; + if (args->argc > 0) { + file_name = args->argv[0]; + log_debug("exporting confdb into file '%s'", file_name); + } + + ret = conf_export(conf(), file_name, YP_SNONE); + + if (ret == KNOT_EOK) { + if (args->argc > 0) { + log_info("OK"); + } + } else { + log_error("export (%s)", knot_strerror(ret)); + } + + return ret; +} + +static int cmd_conf_ctl(cmd_args_t *args) +{ + // Check the number of arguments. + int ret = check_conf_args(args); + if (ret != KNOT_EOK) { + return ret; + } + + knot_ctl_data_t data = { + [KNOT_CTL_IDX_CMD] = ctl_cmd_to_str(args->desc->cmd), + [KNOT_CTL_IDX_FLAGS] = args->flags, + }; + + // Send the command without parameters. + if (args->argc == 0) { + CTL_SEND_DATA + // Set the first item argument. + } else { + ret = get_conf_key(args->argv[0], &data); + if (ret != KNOT_EOK) { + return ret; + } + + // Send if only one argument or item without values. + if (args->argc == 1 || !(args->desc->flags & CMD_FOPT_DATA)) { + CTL_SEND_DATA + } + } + + // Send the item values or the other items. + for (int i = 1; i < args->argc; i++) { + if (args->desc->flags & CMD_FOPT_DATA) { + data[KNOT_CTL_IDX_DATA] = args->argv[i]; + } else { + ret = get_conf_key(args->argv[i], &data); + if (ret != KNOT_EOK) { + return ret; + } + } + + CTL_SEND_DATA + } + + CTL_SEND_BLOCK + + return ctl_receive(args); +} + +const cmd_desc_t cmd_table[] = { + { CMD_EXIT, NULL, CTL_NONE }, + + { CMD_STATUS, cmd_ctl, CTL_STATUS, CMD_FOPT_DATA}, + { CMD_STOP, cmd_ctl, CTL_STOP }, + { CMD_RELOAD, cmd_ctl, CTL_RELOAD }, + { CMD_STATS, cmd_stats_ctl, CTL_STATS }, + + { CMD_ZONE_CHECK, cmd_zone_check, CTL_NONE, CMD_FOPT_ZONE | CMD_FREAD }, + { CMD_ZONE_STATUS, cmd_zone_filter_ctl, CTL_ZONE_STATUS, CMD_FOPT_ZONE }, + { CMD_ZONE_RELOAD, cmd_zone_ctl, CTL_ZONE_RELOAD, CMD_FOPT_ZONE }, + { CMD_ZONE_REFRESH, cmd_zone_ctl, CTL_ZONE_REFRESH, CMD_FOPT_ZONE }, + { CMD_ZONE_RETRANSFER, cmd_zone_ctl, CTL_ZONE_RETRANSFER, CMD_FOPT_ZONE }, + { CMD_ZONE_NOTIFY, cmd_zone_ctl, CTL_ZONE_NOTIFY, CMD_FOPT_ZONE }, + { CMD_ZONE_FLUSH, cmd_zone_filter_ctl, CTL_ZONE_FLUSH, CMD_FOPT_ZONE }, + { CMD_ZONE_BACKUP, cmd_zone_filter_ctl, CTL_ZONE_BACKUP, CMD_FOPT_ZONE }, + { CMD_ZONE_RESTORE, cmd_zone_filter_ctl, CTL_ZONE_RESTORE, CMD_FOPT_ZONE }, + { CMD_ZONE_SIGN, cmd_zone_ctl, CTL_ZONE_SIGN, CMD_FOPT_ZONE }, + { CMD_ZONE_KEY_ROLL, cmd_zone_key_roll_ctl, CTL_ZONE_KEY_ROLL, CMD_FREQ_ZONE }, + { CMD_ZONE_KSK_SBM, cmd_zone_ctl, CTL_ZONE_KSK_SBM, CMD_FREQ_ZONE | CMD_FOPT_ZONE }, + { CMD_ZONE_FREEZE, cmd_zone_ctl, CTL_ZONE_FREEZE, CMD_FOPT_ZONE }, + { CMD_ZONE_THAW, cmd_zone_ctl, CTL_ZONE_THAW, CMD_FOPT_ZONE }, + + { CMD_ZONE_READ, cmd_zone_node_ctl, CTL_ZONE_READ, CMD_FREQ_ZONE }, + { CMD_ZONE_BEGIN, cmd_zone_ctl, CTL_ZONE_BEGIN, CMD_FREQ_ZONE | CMD_FOPT_ZONE }, + { CMD_ZONE_COMMIT, cmd_zone_ctl, CTL_ZONE_COMMIT, CMD_FREQ_ZONE | CMD_FOPT_ZONE }, + { CMD_ZONE_ABORT, cmd_zone_ctl, CTL_ZONE_ABORT, CMD_FREQ_ZONE | CMD_FOPT_ZONE }, + { CMD_ZONE_DIFF, cmd_zone_node_ctl, CTL_ZONE_DIFF, CMD_FREQ_ZONE }, + { CMD_ZONE_GET, cmd_zone_node_ctl, CTL_ZONE_GET, CMD_FREQ_ZONE }, + { CMD_ZONE_SET, cmd_zone_node_ctl, CTL_ZONE_SET, CMD_FREQ_ZONE }, + { CMD_ZONE_UNSET, cmd_zone_node_ctl, CTL_ZONE_UNSET, CMD_FREQ_ZONE }, + { CMD_ZONE_PURGE, cmd_zone_filter_ctl, CTL_ZONE_PURGE, CMD_FREQ_ZONE }, + { CMD_ZONE_STATS, cmd_stats_ctl, CTL_ZONE_STATS, CMD_FREQ_ZONE }, + + { CMD_CONF_INIT, cmd_conf_init, CTL_NONE, CMD_FWRITE }, + { CMD_CONF_CHECK, cmd_conf_check, CTL_NONE, CMD_FREAD | CMD_FREQ_MOD }, + { CMD_CONF_IMPORT, cmd_conf_import, CTL_NONE, CMD_FWRITE | CMD_FOPT_MOD }, + { CMD_CONF_EXPORT, cmd_conf_export, CTL_NONE, CMD_FREAD | CMD_FOPT_MOD }, + { CMD_CONF_LIST, cmd_conf_ctl, CTL_CONF_LIST, CMD_FOPT_ITEM }, + { CMD_CONF_READ, cmd_conf_ctl, CTL_CONF_READ, CMD_FOPT_ITEM }, + { CMD_CONF_BEGIN, cmd_conf_ctl, CTL_CONF_BEGIN }, + { CMD_CONF_COMMIT, cmd_conf_ctl, CTL_CONF_COMMIT }, + { CMD_CONF_ABORT, cmd_conf_ctl, CTL_CONF_ABORT }, + { CMD_CONF_DIFF, cmd_conf_ctl, CTL_CONF_DIFF, CMD_FOPT_ITEM | CMD_FREQ_TXN }, + { CMD_CONF_GET, cmd_conf_ctl, CTL_CONF_GET, CMD_FOPT_ITEM | CMD_FREQ_TXN }, + { CMD_CONF_SET, cmd_conf_ctl, CTL_CONF_SET, CMD_FREQ_ITEM | CMD_FOPT_DATA | CMD_FREQ_TXN }, + { CMD_CONF_UNSET, cmd_conf_ctl, CTL_CONF_UNSET, CMD_FOPT_ITEM | CMD_FOPT_DATA | CMD_FREQ_TXN }, + { NULL } +}; + +static const cmd_help_t cmd_help_table[] = { + { CMD_EXIT, "", "Exit interactive mode." }, + { "", "", "" }, + { CMD_STATUS, "[<detail>]", "Check if the server is running." }, + { CMD_STOP, "", "Stop the server if running." }, + { CMD_RELOAD, "", "Reload the server configuration and modified zones." }, + { CMD_STATS, "[<module>[.<counter>]]", "Show global statistics counter(s)." }, + { "", "", "" }, + { CMD_ZONE_CHECK, "[<zone>...]", "Check if the zone can be loaded. (*)" }, + { CMD_ZONE_RELOAD, "[<zone>...]", "Reload a zone from a disk. (#)" }, + { CMD_ZONE_REFRESH, "[<zone>...]", "Force slave zone refresh. (#)" }, + { CMD_ZONE_NOTIFY, "[<zone>...]", "Send a NOTIFY message to all configured remotes. (#)" }, + { CMD_ZONE_RETRANSFER, "[<zone>...]", "Force slave zone retransfer (no serial check). (#)" }, + { CMD_ZONE_FLUSH, "[<zone>...] [<filter>...]", "Flush zone journal into the zone file. (#)" }, + { CMD_ZONE_BACKUP, "[<zone>...] [<filter>...] +backupdir <dir>", "Backup zone data and metadata. (#)" }, + { CMD_ZONE_RESTORE, "[<zone>...] [<filter>...] +backupdir <dir>", "Restore zone data and metadata. (#)" }, + { CMD_ZONE_SIGN, "[<zone>...]", "Re-sign the automatically signed zone. (#)" }, + { CMD_ZONE_KEY_ROLL, " <zone> ksk|zsk", "Trigger immediate key rollover. (#)" }, + { CMD_ZONE_KSK_SBM, " <zone>...", "When KSK submission, confirm parent's DS presence. (#)" }, + { CMD_ZONE_FREEZE, "[<zone>...]", "Temporarily postpone automatic zone-changing events. (#)" }, + { CMD_ZONE_THAW, "[<zone>...]", "Dismiss zone freeze. (#)" }, + { "", "", "" }, + { CMD_ZONE_READ, "<zone> [<owner> [<type>]]", "Get zone data that are currently being presented." }, + { CMD_ZONE_BEGIN, "<zone>...", "Begin a zone transaction." }, + { CMD_ZONE_COMMIT, "<zone>...", "Commit the zone transaction." }, + { CMD_ZONE_ABORT, "<zone>...", "Abort the zone transaction." }, + { CMD_ZONE_DIFF, "<zone>", "Get zone changes within the transaction." }, + { CMD_ZONE_GET, "<zone> [<owner> [<type>]]", "Get zone data within the transaction." }, + { CMD_ZONE_SET, "<zone> <owner> [<ttl>] <type> <rdata>", "Add zone record within the transaction." }, + { CMD_ZONE_UNSET, "<zone> <owner> [<type> [<rdata>]]", "Remove zone data within the transaction." }, + { CMD_ZONE_PURGE, "<zone>... [<filter>...]", "Purge zone data, zone file, journal, timers, and KASP data. (#)" }, + { CMD_ZONE_STATS, "<zone> [<module>[.<counter>]]", "Show zone statistics counter(s)."}, + { CMD_ZONE_STATUS, "<zone> [<filter>...]", "Show the zone status." }, + { "", "", "" }, + { CMD_CONF_INIT, "", "Initialize the confdb. (*)" }, + { CMD_CONF_CHECK, "", "Check the server configuration. (*)" }, + { CMD_CONF_IMPORT, " <filename>", "Import a config file into the confdb. (*)" }, + { CMD_CONF_EXPORT, "[<filename>]", "Export the confdb into a config file or stdout. (*)" }, + { CMD_CONF_LIST, "[<item>...]", "List the confdb sections or section items." }, + { CMD_CONF_READ, "[<item>...]", "Get the item from the active confdb." }, + { CMD_CONF_BEGIN, "", "Begin a writing confdb transaction." }, + { CMD_CONF_COMMIT, "", "Commit the confdb transaction." }, + { CMD_CONF_ABORT, "", "Rollback the confdb transaction." }, + { CMD_CONF_DIFF, "[<item>...]", "Get the item difference within the transaction." }, + { CMD_CONF_GET, "[<item>...]", "Get the item data within the transaction." }, + { CMD_CONF_SET, " <item> [<data>...]", "Set the item data within the transaction." }, + { CMD_CONF_UNSET, "[<item>] [<data>...]", "Unset the item data within the transaction." }, + { NULL } +}; + +void print_commands(void) +{ + printf("\nActions:\n"); + + for (const cmd_help_t *cmd = cmd_help_table; cmd->name != NULL; cmd++) { + printf(" %-18s %-38s %s\n", cmd->name, cmd->params, cmd->desc); + } + + printf("\n" + "Note:\n" + " Use @ owner to denote the zone name.\n" + " Empty or '--' <zone> parameter means all zones or all zones with a transaction.\n" + " Type <item> parameter in the form of <section>[<identifier>].<name>.\n" + " (*) indicates a local operation which requires a configuration.\n" + " (#) indicates an optionally blocking operation.\n" + " The '-b' and '-f' options can be placed right after the command name.\n"); +} |