/* * Copyright (c) 2000 Kungliga Tekniska Högskolan * (Royal Institute of Technology, Stockholm, Sweden). * 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. * * 3. Neither the name of the Institute nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE 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 INSTITUTE 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 "hprop.h" extern krb5_error_code _hdb_mdb_value2entry(krb5_context context, krb5_data *data, krb5_kvno target_kvno, hdb_entry *entry); extern int _hdb_mit_dump2mitdb_entry(krb5_context context, char *line, krb5_storage *sp); /* can have any number of princ stanzas. format is as follows (only \n indicates newlines) princ\t%d\t (%d is KRB5_KDB_V1_BASE_LENGTH, always 38) %d\t (strlen of principal e.g. shadow/foo@ANDREW.CMU.EDU) %d\t (number of tl_data) %d\t (number of key data, e.g. how many keys for this user) %d\t (extra data length) %s\t (principal name) %d\t (attributes) %d\t (max lifetime, seconds) %d\t (max renewable life, seconds) %d\t (expiration, seconds since epoch or 2145830400 for never) %d\t (password expiration, seconds, 0 for never) %d\t (last successful auth, seconds since epoch) %d\t (last failed auth, per above) %d\t (failed auth count) foreach tl_data 0 to number of tl_data - 1 as above %d\t%d\t (data type, data length) foreach tl_data 0 to length-1 %02x (tl data contents[element n]) except if tl_data length is 0 %d (always -1) \t foreach key 0 to number of keys - 1 as above %d\t%d\t (key data version, kvno) foreach version 0 to key data version - 1 (a key or a salt) %d\t%d\t(data type for this key, data length for this key) foreach key data length 0 to length-1 %02x (key data contents[element n]) except if key_data length is 0 %d (always -1) \t foreach extra data length 0 to length - 1 %02x (extra data part) unless no extra data %d (always -1) ;\n */ static char * nexttoken(char **p) { char *q; do { q = strsep(p, " \t"); } while(q && *q == '\0'); return q; } #include <kadm5/admin.h> static int my_fgetln(FILE *f, char **buf, size_t *sz, size_t *len) { char *p, *n; if (!*buf) { *buf = malloc(*sz ? *sz : 2048); if (!*buf) return ENOMEM; if (!*sz) *sz = 2048; } *len = 0; while ((p = fgets(&(*buf)[*len], *sz, f))) { if (strcspn(*buf, "\r\n") || feof(f)) { *len = strlen(*buf); return 0; } *len += strlen(&(*buf)[*len]); /* *len should be == *sz */ n = realloc(*buf, *sz + (*sz >> 1)); if (!n) { free(*buf); *buf = NULL; *sz = 0; *len = 0; return ENOMEM; } *buf = n; *sz += *sz >> 1; } return 0; /* *len == 0 || no EOL -> EOF */ } int mit_prop_dump(void *arg, const char *file) { krb5_error_code ret; size_t line_bufsz = 0; size_t line_len = 0; char *line = NULL; int lineno = 0; FILE *f; struct hdb_entry_ex ent; struct prop_data *pd = arg; krb5_storage *sp = NULL; krb5_data kdb_ent; memset(&ent, 0, sizeof (ent)); f = fopen(file, "r"); if (f == NULL) return errno; ret = ENOMEM; sp = krb5_storage_emem(); if (!sp) goto out; while ((ret = my_fgetln(f, &line, &line_bufsz, &line_len)) == 0) { char *p = line; char *q; lineno++; if(strncmp(line, "kdb5_util", strlen("kdb5_util")) == 0) { int major; q = nexttoken(&p); if (strcmp(q, "kdb5_util")) errx(1, "line %d: unknown version", lineno); q = nexttoken(&p); /* load_dump */ if (strcmp(q, "load_dump")) errx(1, "line %d: unknown version", lineno); q = nexttoken(&p); /* load_dump */ if (strcmp(q, "version")) errx(1, "line %d: unknown version", lineno); q = nexttoken(&p); /* x.0 */ if (sscanf(q, "%d", &major) != 1) errx(1, "line %d: unknown version", lineno); if (major != 4 && major != 5 && major != 6) errx(1, "unknown dump file format, got %d, expected 4-6", major); continue; } else if(strncmp(p, "policy", strlen("policy")) == 0) { warnx("line: %d: ignoring policy (not supported)", lineno); continue; } else if(strncmp(p, "princ", strlen("princ")) != 0) { warnx("line %d: not a principal", lineno); continue; } krb5_storage_truncate(sp, 0); ret = _hdb_mit_dump2mitdb_entry(pd->context, line, sp); if (ret) break; ret = krb5_storage_to_data(sp, &kdb_ent); if (ret) break; ret = _hdb_mdb_value2entry(pd->context, &kdb_ent, 0, &ent.entry); krb5_data_free(&kdb_ent); if (ret) break; ret = v5_prop(pd->context, NULL, &ent, arg); hdb_free_entry(pd->context, &ent); if (ret) break; } out: fclose(f); free(line); if (sp) krb5_storage_free(sp); if (ret && ret == ENOMEM) errx(1, "out of memory"); if (ret) errx(1, "line %d: problem parsing dump line", lineno); return ret; }
