freebsd-dev/crypto/heimdal/kadmin/load.c
2000-02-24 11:28:20 +00:00

486 lines
11 KiB
C

/*
* Copyright (c) 1997 - 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 "kadmin_locl.h"
#include <kadm5/private.h>
RCSID("$Id: load.c,v 1.36 2000/02/16 16:05:28 assar Exp $");
struct entry {
char *principal;
char *key;
char *max_life;
char *max_renew;
char *created;
char *modified;
char *valid_start;
char *valid_end;
char *pw_end;
char *flags;
char *etypes;
};
static char *
skip_next(char *p)
{
while(*p && !isspace((unsigned char)*p))
p++;
*p++ = 0;
while(*p && isspace((unsigned char)*p))
p++;
return p;
}
/*
* Parse the time in `s', returning:
* -1 if error parsing
* 0 if none present
* 1 if parsed ok
*/
static int
parse_time_string(time_t *t, const char *s)
{
int year, month, date, hour, minute, second;
struct tm tm;
if(strcmp(s, "-") == 0)
return 0;
if(sscanf(s, "%04d%02d%02d%02d%02d%02d",
&year, &month, &date, &hour, &minute, &second) != 6)
return -1;
tm.tm_year = year - 1900;
tm.tm_mon = month - 1;
tm.tm_mday = date;
tm.tm_hour = hour;
tm.tm_min = minute;
tm.tm_sec = second;
tm.tm_isdst = 0;
*t = timegm(&tm);
return 1;
}
/*
* parse time, allocating space in *t if it's there
*/
static int
parse_time_string_alloc (time_t **t, const char *s)
{
time_t tmp;
int ret;
*t = NULL;
ret = parse_time_string (&tmp, s);
if (ret == 1) {
*t = malloc (sizeof (**t));
if (*t == NULL)
krb5_errx (context, 1, "malloc: out of memory");
**t = tmp;
}
return ret;
}
/*
* see parse_time_string for calling convention
*/
static int
parse_integer(unsigned *u, const char *s)
{
if(strcmp(s, "-") == 0)
return 0;
if (sscanf(s, "%u", u) != 1)
return -1;
return 1;
}
static int
parse_integer_alloc (int **u, const char *s)
{
unsigned tmp;
int ret;
*u = NULL;
ret = parse_integer (&tmp, s);
if (ret == 1) {
*u = malloc (sizeof (**u));
if (*u == NULL)
krb5_errx (context, 1, "malloc: out of memory");
**u = tmp;
}
return ret;
}
/*
* Parse dumped keys in `str' and store them in `ent'
* return -1 if parsing failed
*/
static int
parse_keys(hdb_entry *ent, char *str)
{
krb5_error_code ret;
int tmp;
char *p;
int i;
p = strsep(&str, ":");
if (sscanf(p, "%d", &tmp) != 1)
return 1;
ent->kvno = tmp;
p = strsep(&str, ":");
while(p){
Key *key;
key = realloc(ent->keys.val,
(ent->keys.len + 1) * sizeof(*ent->keys.val));
if(key == NULL)
krb5_errx (context, 1, "realloc: out of memory");
ent->keys.val = key;
key = ent->keys.val + ent->keys.len;
ent->keys.len++;
memset(key, 0, sizeof(*key));
if(sscanf(p, "%d", &tmp) == 1) {
key->mkvno = malloc(sizeof(*key->mkvno));
*key->mkvno = tmp;
} else
key->mkvno = NULL;
p = strsep(&str, ":");
if (sscanf(p, "%d", &tmp) != 1)
return 1;
key->key.keytype = tmp;
p = strsep(&str, ":");
ret = krb5_data_alloc(&key->key.keyvalue, (strlen(p) - 1) / 2 + 1);
if (ret)
krb5_err (context, 1, ret, "krb5_data_alloc");
for(i = 0; i < strlen(p); i += 2) {
if(sscanf(p + i, "%02x", &tmp) != 1)
return 1;
((u_char*)key->key.keyvalue.data)[i / 2] = tmp;
}
p = strsep(&str, ":");
if(strcmp(p, "-") != 0){
unsigned type;
size_t p_len;
if(sscanf(p, "%u/", &type) != 1)
return 1;
p = strchr(p, '/');
if(p == NULL)
return 1;
p++;
p_len = strlen(p);
key->salt = malloc(sizeof(*key->salt));
if (key->salt == NULL)
krb5_errx (context, 1, "malloc: out of memory");
key->salt->type = type;
if (p_len) {
if(*p == '\"') {
ret = krb5_data_copy(&key->salt->salt, p + 1, p_len - 2);
if (ret)
krb5_err (context, 1, ret, "krb5_data_copy");
} else {
ret = krb5_data_alloc(&key->salt->salt,
(p_len - 1) / 2 + 1);
if (ret)
krb5_err (context, 1, ret, "krb5_data_alloc");
for(i = 0; i < p_len; i += 2){
if (sscanf(p + i, "%02x", &tmp) != 1)
return 1;
((u_char*)key->salt->salt.data)[i / 2] = tmp;
}
}
} else
krb5_data_zero (&key->salt->salt);
}
p = strsep(&str, ":");
}
return 0;
}
/*
* see parse_time_string for calling convention
*/
static int
parse_event(Event *ev, char *s)
{
krb5_error_code ret;
char *p;
if(strcmp(s, "-") == 0)
return 0;
memset(ev, 0, sizeof(*ev));
p = strsep(&s, ":");
if(parse_time_string(&ev->time, p) != 1)
return -1;
p = strsep(&s, ":");
ret = krb5_parse_name(context, p, &ev->principal);
if (ret)
return -1;
return 1;
}
static int
parse_event_alloc (Event **ev, char *s)
{
Event tmp;
int ret;
*ev = NULL;
ret = parse_event (&tmp, s);
if (ret == 1) {
*ev = malloc (sizeof (**ev));
if (*ev == NULL)
krb5_errx (context, 1, "malloc: out of memory");
**ev = tmp;
}
return ret;
}
static int
parse_hdbflags2int(HDBFlags *f, const char *s)
{
int ret;
unsigned tmp;
ret = parse_integer (&tmp, s);
if (ret == 1)
*f = int2HDBFlags (tmp);
return ret;
}
#if 0
static void
parse_etypes(char *str, unsigned **val, unsigned *len)
{
unsigned v;
*val = NULL;
*len = 0;
while(sscanf(str, "%u", &v) == 1) {
*val = realloc(*val, (*len+1) * sizeof(**val));
(*val)[(*len)++] = v;
str = strchr(str, ':');
if(str == NULL)
break;
str++;
}
}
#endif
/*
* Parse the dump file in `filename' and create the database (merging
* iff merge)
*/
static int
doit(const char *filename, int merge)
{
krb5_error_code ret;
FILE *f;
char s[1024];
char *p;
int line;
int flags = O_RDWR;
struct entry e;
hdb_entry ent;
HDB *db = _kadm5_s_get_db(kadm_handle);
f = fopen(filename, "r");
if(f == NULL){
krb5_warn(context, errno, "fopen(%s)", filename);
return 1;
}
if(!merge)
flags |= O_CREAT | O_TRUNC;
ret = db->open(context, db, flags, 0600);
if(ret){
krb5_warn(context, ret, "hdb_open");
fclose(f);
return 1;
}
line = 0;
while(fgets(s, sizeof(s), f)){
line++;
e.principal = s;
for(p = s; *p; p++){
if(*p == '\\')
p++;
else if(isspace((unsigned char)*p)) {
*p = 0;
break;
}
}
p = skip_next(p);
e.key = p;
p = skip_next(p);
e.created = p;
p = skip_next(p);
e.modified = p;
p = skip_next(p);
e.valid_start = p;
p = skip_next(p);
e.valid_end = p;
p = skip_next(p);
e.pw_end = p;
p = skip_next(p);
e.max_life = p;
p = skip_next(p);
e.max_renew = p;
p = skip_next(p);
e.flags = p;
p = skip_next(p);
e.etypes = p;
p = skip_next(p);
memset(&ent, 0, sizeof(ent));
ret = krb5_parse_name(context, e.principal, &ent.principal);
if(ret) {
fprintf(stderr, "%s:%d:%s (%s)\n",
filename,
line,
krb5_get_err_text(context, ret),
e.principal);
continue;
}
if (parse_keys(&ent, e.key)) {
fprintf (stderr, "%s:%d:error parsing keys (%s)\n",
filename, line, e.key);
hdb_free_entry (context, &ent);
continue;
}
if (parse_event(&ent.created_by, e.created) == -1) {
fprintf (stderr, "%s:%d:error parsing created event (%s)\n",
filename, line, e.created);
hdb_free_entry (context, &ent);
continue;
}
if (parse_event_alloc (&ent.modified_by, e.modified) == -1) {
fprintf (stderr, "%s:%d:error parsing event (%s)\n",
filename, line, e.modified);
hdb_free_entry (context, &ent);
continue;
}
if (parse_time_string_alloc (&ent.valid_start, e.valid_start) == -1) {
fprintf (stderr, "%s:%d:error parsing time (%s)\n",
filename, line, e.valid_start);
hdb_free_entry (context, &ent);
continue;
}
if (parse_time_string_alloc (&ent.valid_end, e.valid_end) == -1) {
fprintf (stderr, "%s:%d:error parsing time (%s)\n",
filename, line, e.valid_end);
hdb_free_entry (context, &ent);
continue;
}
if (parse_time_string_alloc (&ent.pw_end, e.pw_end) == -1) {
fprintf (stderr, "%s:%d:error parsing time (%s)\n",
filename, line, e.pw_end);
hdb_free_entry (context, &ent);
continue;
}
if (parse_integer_alloc (&ent.max_life, e.max_life) == -1) {
fprintf (stderr, "%s:%d:error parsing lifetime (%s)\n",
filename, line, e.max_life);
hdb_free_entry (context, &ent);
continue;
}
if (parse_integer_alloc (&ent.max_renew, e.max_renew) == -1) {
fprintf (stderr, "%s:%d:error parsing lifetime (%s)\n",
filename, line, e.max_renew);
hdb_free_entry (context, &ent);
continue;
}
if (parse_hdbflags2int (&ent.flags, e.flags) != 1) {
fprintf (stderr, "%s:%d:error parsing flags (%s)\n",
filename, line, e.flags);
hdb_free_entry (context, &ent);
continue;
}
#if 0
ALLOC(ent.etypes);
parse_etypes(e.etypes, &ent.etypes->val, &ent.etypes->len);
if(ent.etypes->len == 0) {
free(ent.etypes);
ent.etypes = NULL;
}
#endif
db->store(context, db, HDB_F_REPLACE, &ent);
hdb_free_entry (context, &ent);
}
db->close(context, db);
fclose(f);
return 0;
}
int
load(int argc, char **argv)
{
if(argc < 2){
krb5_warnx(context, "Usage: load filename");
return 0;
}
doit(argv[1], 0);
return 0;
}
int
merge(int argc, char **argv)
{
if(argc < 2){
krb5_warnx(context, "Usage: merge filename");
return 0;
}
doit(argv[1], 1);
return 0;
}