/*
* 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>
/* XXX: Principal names with '\n' cannot be dumped or loaded */
static int
my_fgetln(FILE *f, char **bufp, size_t *szp, size_t *lenp)
{
size_t len;
size_t sz = *szp;
char *buf = *bufp;
char *n;
if (!buf) {
buf = malloc(sz ? sz : 8192);
if (!buf)
return ENOMEM;
if (!sz)
sz = 8192;
}
len = 0;
while (fgets(&buf[len], sz-len, f) != NULL) {
len += strlen(&buf[len]);
if (buf[len-1] == '\n')
break;
if (feof(f))
break;
if (sz > SIZE_MAX/2 ||
(n = realloc(buf, sz += 1 + (sz >> 1))) == NULL) {
free(buf);
*bufp = NULL;
*szp = 0;
*lenp = 0;
return ENOMEM;
}
buf = n;
}
*bufp = buf;
*szp = sz;
*lenp = len;
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;
hdb_entry 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 &&
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") != 0)
errx(1, "line %d: unknown version", lineno);
q = nexttoken(&p); /* load_dump */
if (strcmp(q, "load_dump") != 0)
errx(1, "line %d: unknown version", lineno);
q = nexttoken(&p); /* load_dump */
if (strcmp(q, "version") != 0)
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) {
if (ret > 0)
warn("line: %d: failed to parse; ignoring", lineno);
else
warnx("line: %d: failed to parse; ignoring", lineno);
continue;
}
ret = krb5_storage_to_data(sp, &kdb_ent);
if (ret) break;
ret = _hdb_mdb_value2entry(pd->context, &kdb_ent, 0, &ent);
krb5_data_free(&kdb_ent);
if (ret) {
warnx("line: %d: failed to store; ignoring", lineno);
continue;
}
ret = v5_prop(pd->context, NULL, &ent, arg);
hdb_free_entry(pd->context, NULL, &ent); /* XXX */
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;
}