/* $OpenBSD: output.c,v 1.26 2022/04/20 15:29:24 tb Exp $ */ /* * Copyright (c) 2019 Theo de Raadt * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ /*- * Copyright (C) 2009 Gabor Kovesdan * Copyright (C) 2012 Oleg Moskalenko * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include #include #include #include #include #include #include #include #include #include #include "extern.h" int outformats; static char output_tmpname[PATH_MAX]; static char output_name[PATH_MAX]; static const struct outputs { int format; char *name; int (*fn)(FILE *, struct vrp_tree *, struct brk_tree *, struct stats *); } outputs[] = { { FORMAT_OPENBGPD, "openbgpd", output_bgpd }, { FORMAT_BIRD, "bird1v4", output_bird1v4 }, { FORMAT_BIRD, "bird1v6", output_bird1v6 }, { FORMAT_BIRD, "bird", output_bird2 }, { FORMAT_CSV, "csv", output_csv }, { FORMAT_JSON, "json", output_json }, { 0, NULL } }; static FILE *output_createtmp(char *); static void output_cleantmp(void); static int output_finish(FILE *); static void sig_handler(int); static void set_signal_handler(void); int outputfiles(struct vrp_tree *v, struct brk_tree *b, struct stats *st) { int i, rc = 0; atexit(output_cleantmp); set_signal_handler(); for (i = 0; outputs[i].name; i++) { FILE *fout; if (!(outformats & outputs[i].format)) continue; fout = output_createtmp(outputs[i].name); if (fout == NULL) { warn("cannot create %s", outputs[i].name); rc = 1; continue; } if ((*outputs[i].fn)(fout, v, b, st) != 0) { warn("output for %s format failed", outputs[i].name); fclose(fout); output_cleantmp(); rc = 1; continue; } if (output_finish(fout) != 0) { warn("finish for %s format failed", outputs[i].name); output_cleantmp(); rc = 1; continue; } } return rc; } static FILE * output_createtmp(char *name) { FILE *f; int fd, r; if (strlcpy(output_name, name, sizeof output_name) >= sizeof output_name) err(1, "path too long"); r = snprintf(output_tmpname, sizeof output_tmpname, "%s.XXXXXXXXXXX", output_name); if (r < 0 || r > (int)sizeof(output_tmpname)) err(1, "path too long"); fd = mkostemp(output_tmpname, O_CLOEXEC); if (fd == -1) err(1, "mkostemp: %s", output_tmpname); (void) fchmod(fd, 0644); f = fdopen(fd, "w"); if (f == NULL) err(1, "fdopen"); return f; } static int output_finish(FILE *out) { if (fclose(out) != 0) return -1; if (rename(output_tmpname, output_name) == -1) return -1; output_tmpname[0] = '\0'; return 0; } static void output_cleantmp(void) { if (*output_tmpname) unlink(output_tmpname); output_tmpname[0] = '\0'; } /* * Signal handler that clears the temporary files. */ static void sig_handler(int sig) { output_cleantmp(); _exit(2); } /* * Set signal handler on panic signals. */ static void set_signal_handler(void) { struct sigaction sa; int i, signals[] = {SIGTERM, SIGHUP, SIGINT, SIGUSR1, SIGUSR2, SIGPIPE, SIGXCPU, SIGXFSZ, 0}; memset(&sa, 0, sizeof(sa)); sigfillset(&sa.sa_mask); sa.sa_flags = SA_RESTART; sa.sa_handler = sig_handler; for (i = 0; signals[i] != 0; i++) { if (sigaction(signals[i], &sa, NULL) == -1) { warn("sigaction(%s)", strsignal(signals[i])); continue; } } } int outputheader(FILE *out, struct stats *st) { char hn[NI_MAXHOST], tbuf[80]; struct tm *tp; time_t t; int i; time(&t); tp = gmtime(&t); strftime(tbuf, sizeof tbuf, "%a %b %e %H:%M:%S UTC %Y", tp); gethostname(hn, sizeof hn); if (fprintf(out, "# Generated on host %s at %s\n" "# Processing time %lld seconds (%llds user, %llds system)\n" "# Route Origin Authorizations: %zu (%zu failed parse, %zu invalid)\n" "# BGPsec Router Certificates: %zu\n" "# Certificates: %zu (%zu invalid)\n", hn, tbuf, (long long)st->elapsed_time.tv_sec, (long long)st->user_time.tv_sec, (long long)st->system_time.tv_sec, st->roas, st->roas_fail, st->roas_invalid, st->brks, st->certs, st->certs_fail) < 0) return -1; if (fprintf(out, "# Trust Anchor Locators: %zu (%zu invalid) [", st->tals, talsz - st->tals) < 0) return -1; for (i = 0; i < talsz; i++) if (fprintf(out, " %s", tals[i]) < 0) return -1; if (fprintf(out, " ]\n" "# Manifests: %zu (%zu failed parse, %zu stale)\n" "# Certificate revocation lists: %zu\n" "# Ghostbuster records: %zu\n" "# Repositories: %zu\n" "# VRP Entries: %zu (%zu unique)\n", st->mfts, st->mfts_fail, st->mfts_stale, st->crls, st->gbrs, st->repos, st->vrps, st->uniqs) < 0) return -1; return 0; }