diff options
Diffstat (limited to 'src/utils/kjournalprint')
| -rw-r--r-- | src/utils/kjournalprint/main.c | 430 |
1 files changed, 430 insertions, 0 deletions
diff --git a/src/utils/kjournalprint/main.c b/src/utils/kjournalprint/main.c new file mode 100644 index 0000000..a1dc3d7 --- /dev/null +++ b/src/utils/kjournalprint/main.c @@ -0,0 +1,430 @@ +/* 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 <getopt.h> +#include <stdlib.h> +#include <sys/stat.h> + +#include "libknot/libknot.h" +#include "knot/journal/journal_basic.h" +#include "knot/journal/journal_metadata.h" +#include "knot/journal/journal_read.h" +#include "knot/journal/serialization.h" +#include "knot/zone/zone-dump.h" +#include "utils/common/params.h" +#include "contrib/dynarray.h" +#include "contrib/strtonum.h" +#include "contrib/string.h" + +#define PROGRAM_NAME "kjournalprint" + +static void print_help(void) +{ + printf("Usage: %s [parameters] <journal_dir> <zone_name>\n" + "\n" + "Parameters:\n" + " -l, --limit <num> Read only <num> newest changes.\n" + " -s, --serial <soa> Start with specific SOA serial.\n" + " -n, --no-color Get output without terminal coloring.\n" + " -z, --zone-list Instead of reading jurnal, display the list\n" + " of zones in the DB (<zone_name> not needed).\n" + " -c, --check Additional journal semantic checks.\n" + " -d, --debug Debug mode output.\n" + " -h, --help Print the program help.\n" + " -V, --version Print the program version.\n", + PROGRAM_NAME); +} + +typedef struct { + bool debug; + bool color; + bool check; + int limit; + int counter; + uint32_t serial; + bool from_serial; + size_t changes; +} print_params_t; + +static void print_changeset(const changeset_t *chs, print_params_t *params) +{ + static size_t count = 1; + const char *YLW = "\x1B[93m"; + printf("%s", params->color ? YLW : ""); + + if (chs->soa_from == NULL) { + printf(";; Zone-in-journal, serial: %u, changeset: %zu\n", + knot_soa_serial(chs->soa_to->rrs.rdata), + count++); + } else { + printf(";; Changes between zone versions: %u -> %u, changeset: %zu\n", + knot_soa_serial(chs->soa_from->rrs.rdata), + knot_soa_serial(chs->soa_to->rrs.rdata), + count++); + } + changeset_print(chs, stdout, params->color); +} + +dynarray_declare(rrtype, uint16_t, DYNARRAY_VISIBILITY_STATIC, 100) +dynarray_define(rrtype, uint16_t, DYNARRAY_VISIBILITY_STATIC) + +typedef struct { + rrtype_dynarray_t *arr; + size_t *counter; +} rrtypelist_ctx_t; + +static void rrtypelist_add(rrtype_dynarray_t *arr, uint16_t add_type) +{ + bool already_present = false; + dynarray_foreach(rrtype, uint16_t, i, *arr) { + if (*i == add_type) { + already_present = true; + break; + } + } + if (!already_present) { + rrtype_dynarray_add(arr, &add_type); + } +} + +static int rrtypelist_callback(zone_node_t *node, void *data) +{ + rrtypelist_ctx_t *ctx = data; + for (int i = 0; i < node->rrset_count; i++) { + knot_rrset_t rrset = node_rrset_at(node, i); + rrtypelist_add(ctx->arr, rrset.type); + *ctx->counter += rrset.rrs.count; + } + return KNOT_EOK; +} + +static void print_changeset_debugmode(const changeset_t *chs) +{ + // detect all types + rrtype_dynarray_t types = { 0 }; + size_t count_minus = 1, count_plus = 1; // 1 for SOA which is always present but not iterated + rrtypelist_ctx_t ctx_minus = { &types, &count_minus }, ctx_plus = { &types, &count_plus }; + (void)zone_contents_apply(chs->remove, rrtypelist_callback, &ctx_minus); + (void)zone_contents_nsec3_apply(chs->remove, rrtypelist_callback, &ctx_minus); + (void)zone_contents_apply(chs->add, rrtypelist_callback, &ctx_plus); + (void)zone_contents_nsec3_apply(chs->add, rrtypelist_callback, &ctx_plus); + + if (chs->soa_from == NULL) { + printf("Zone-in-journal %u +++: %zu\t size: %zu\t", knot_soa_serial(chs->soa_to->rrs.rdata), + count_plus, changeset_serialized_size(chs)); + } else { + printf("%u -> %u ---: %zu\t +++: %zu\t size: %zu\t", knot_soa_serial(chs->soa_from->rrs.rdata), + knot_soa_serial(chs->soa_to->rrs.rdata), count_minus, count_plus, changeset_serialized_size(chs)); + } + + char temp[100]; + dynarray_foreach(rrtype, uint16_t, i, types) { + (void)knot_rrtype_to_string(*i, temp, sizeof(temp)); + printf(" %s", temp); + } + printf("\n"); +} + +static int count_changeset_cb(bool special, const changeset_t *ch, void *ctx) +{ + UNUSED(special); + + print_params_t *params = ctx; + if (ch != NULL) { + params->counter++; + } + return KNOT_EOK; +} + +static int print_changeset_cb(bool special, const changeset_t *ch, void *ctx) +{ + print_params_t *params = ctx; + if (ch != NULL && params->counter++ >= params->limit) { + if (params->debug) { + print_changeset_debugmode(ch); + params->changes++; + } else { + print_changeset(ch, params); + } + if (special && params->debug) { + printf("---------------------------------------------\n"); + } + } + return KNOT_EOK; +} + +int print_journal(char *path, knot_dname_t *name, print_params_t *params) +{ + knot_lmdb_db_t jdb = { 0 }; + zone_journal_t j = { &jdb, name }; + bool exists; + uint64_t occupied, occupied_all; + + knot_lmdb_init(&jdb, path, 0, journal_env_flags(JOURNAL_MODE_ROBUST, true), NULL); + if (!knot_lmdb_exists(&jdb)) { + knot_lmdb_deinit(&jdb); + return KNOT_EFILE; + } + + int ret = knot_lmdb_open(&jdb); + if (ret != KNOT_EOK) { + knot_lmdb_deinit(&jdb); + return ret; + } + + ret = journal_info(j, &exists, NULL, NULL, NULL, NULL, NULL, &occupied, &occupied_all); + if (ret != KNOT_EOK || !exists) { + fprintf(stderr, "This zone does not exist in DB %s\n", path); + knot_lmdb_deinit(&jdb); + return ret == KNOT_EOK ? KNOT_ENOENT : ret; + } + + if (params->check) { + ret = journal_sem_check(j); + if (ret > 0) { + fprintf(stderr, "Journal semantic check error: %d\n", ret); + } else if (ret != KNOT_EOK) { + fprintf(stderr, "Journal semantic check failed (%s).\n", knot_strerror(ret)); + } + } + + if (params->limit >= 0 && ret == KNOT_EOK) { + if (params->from_serial) { + ret = journal_walk_from(j, params->serial, count_changeset_cb, params); + } else { + ret = journal_walk(j, count_changeset_cb, params); + } + } + if (ret == KNOT_EOK) { + if (params->limit < 0 || params->counter <= params->limit) { + params->limit = 0; + } else { + params->limit = params->counter - params->limit; + } + params->counter = 0; + if (params->from_serial) { + ret = journal_walk_from(j, params->serial, print_changeset_cb, params); + } else { + ret = journal_walk(j, print_changeset_cb, params); + } + } + + if (params->debug && ret == KNOT_EOK) { + printf("Total number of changesets: %zu\n", params->changes); + printf("Occupied this zone (approx): %"PRIu64" KiB\n", occupied / 1024); + printf("Occupied all zones together: %"PRIu64" KiB\n", occupied_all / 1024); + } + + knot_lmdb_deinit(&jdb); + return ret; +} + +static int add_zone_to_list(const knot_dname_t *zone, void *list) +{ + knot_dname_t *copy = knot_dname_copy(zone, NULL); + if (copy == NULL) { + return KNOT_ENOMEM; + } + return ptrlist_add(list, copy, NULL) == NULL ? KNOT_ENOMEM : KNOT_EOK; +} + +static int list_zone(const knot_dname_t *zone, bool detailed, knot_lmdb_db_t *jdb, uint64_t *occupied_all) +{ + knot_dname_txt_storage_t zone_str; + if (knot_dname_to_str(zone_str, zone, sizeof(zone_str)) == NULL) { + return KNOT_EINVAL; + } + + if (detailed) { + zone_journal_t j = { jdb, zone }; + bool exists; + uint64_t occupied; + + int ret = journal_info(j, &exists, NULL, NULL, NULL, NULL, NULL, &occupied, occupied_all); + if (ret != KNOT_EOK) { + return ret; + } + assert(exists); + printf("%s \t%"PRIu64" KiB\n", zone_str, occupied / 1024); + } else { + printf("%s\n", zone_str); + } + return KNOT_EOK; +} + +int list_zones(char *path, bool detailed) +{ + knot_lmdb_db_t jdb = { 0 }; + knot_lmdb_init(&jdb, path, 0, journal_env_flags(JOURNAL_MODE_ROBUST, true), NULL); + + list_t zones; + init_list(&zones); + ptrnode_t *zone; + uint64_t occupied_all = 0; + + int ret = journals_walk(&jdb, add_zone_to_list, &zones); + WALK_LIST(zone, zones) { + if (ret != KNOT_EOK) { + break; + } + ret = list_zone(zone->d, detailed, &jdb, &occupied_all); + } + + knot_lmdb_deinit(&jdb); + ptrlist_deep_free(&zones, NULL); + + if (detailed && ret == KNOT_EOK) { + printf("Occupied all zones together: %"PRIu64" KiB\n", occupied_all / 1024); + } + return ret; +} + +int main(int argc, char *argv[]) +{ + bool justlist = false; + + print_params_t params = { + .debug = false, + .color = true, + .check = false, + .limit = -1, + .from_serial = false, + }; + + struct option opts[] = { + { "limit", required_argument, NULL, 'l' }, + { "serial", required_argument, NULL, 's' }, + { "no-color", no_argument, NULL, 'n' }, + { "zone-list", no_argument, NULL, 'z' }, + { "check", no_argument, NULL, 'c' }, + { "debug", no_argument, NULL, 'd' }, + { "help", no_argument, NULL, 'h' }, + { "version", no_argument, NULL, 'V' }, + { NULL } + }; + + int opt = 0; + while ((opt = getopt_long(argc, argv, "l:s:nzcdhV", opts, NULL)) != -1) { + switch (opt) { + case 'l': + if (str_to_int(optarg, ¶ms.limit, 0, INT_MAX) != KNOT_EOK) { + print_help(); + return EXIT_FAILURE; + } + break; + case 's': + if (str_to_u32(optarg, ¶ms.serial) != KNOT_EOK) { + print_help(); + return EXIT_FAILURE; + } + params.from_serial = true; + break; + case 'n': + params.color = false; + break; + case 'z': + justlist = true; + break; + case 'c': + params.check = true; + break; + case 'd': + params.debug = true; + break; + case 'h': + print_help(); + return EXIT_SUCCESS; + case 'V': + print_version(PROGRAM_NAME); + return EXIT_SUCCESS; + default: + print_help(); + return EXIT_FAILURE; + } + } + + char *db = NULL; + knot_dname_t *name = NULL; + + switch (argc - optind) { + case 2: + name = knot_dname_from_str_alloc(argv[optind + 1]); + knot_dname_to_lower(name); + // FALLTHROUGH + case 1: + db = argv[optind]; + break; + default: + print_help(); + return EXIT_FAILURE; + } + + if (db == NULL) { + fprintf(stderr, "Journal DB path not specified\n"); + return EXIT_FAILURE; + } + + if (justlist) { + int ret = list_zones(db, params.debug); + switch (ret) { + case KNOT_ENOENT: + printf("No zones in journal DB\n"); + // FALLTHROUGH + case KNOT_EOK: + return EXIT_SUCCESS; + case KNOT_EFILE: + fprintf(stderr, "The specified journal DB is invalid\n"); + return EXIT_FAILURE; + case KNOT_EMALF: + fprintf(stderr, "The journal DB is broken\n"); + return EXIT_FAILURE; + default: + fprintf(stderr, "Failed to load zone list (%s)\n", knot_strerror(ret)); + return EXIT_FAILURE; + } + } + + if (name == NULL) { + fprintf(stderr, "Zone not specified\n"); + return EXIT_FAILURE; + } + + int ret = print_journal(db, name, ¶ms); + free(name); + + switch (ret) { + case KNOT_ENOENT: + if (params.from_serial) { + printf("The journal is empty or the serial not present\n"); + } else { + printf("The journal is empty\n"); + } + break; + case KNOT_EFILE: + fprintf(stderr, "The specified journal DB is invalid\n"); + return EXIT_FAILURE; + case KNOT_EOUTOFZONE: + fprintf(stderr, "The specified journal DB does not contain the specified zone\n"); + return EXIT_FAILURE; + case KNOT_EOK: + break; + default: + fprintf(stderr, "Failed to load changesets (%s)\n", knot_strerror(ret)); + return EXIT_FAILURE; + } + + return EXIT_SUCCESS; +} |