568 lines
12 KiB
C
568 lines
12 KiB
C
/*
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* Copyright (c) 1997-2005 Kungliga Tekniska Högskolan
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* (Royal Institute of Technology, Stockholm, Sweden).
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include "kadmin_locl.h"
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#include "kadmin-commands.h"
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#include <kadm5/private.h>
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struct entry {
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char *principal;
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char *key;
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char *max_life;
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char *max_renew;
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char *created;
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char *modified;
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char *valid_start;
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char *valid_end;
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char *pw_end;
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char *flags;
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char *generation;
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char *extensions;
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};
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static char *
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skip_next(char *p)
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{
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while(*p && !isspace((unsigned char)*p))
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p++;
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*p++ = 0;
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while(*p && isspace((unsigned char)*p))
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p++;
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return p;
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}
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/*
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* Parse the time in `s', returning:
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* -1 if error parsing
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* 0 if none present
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* 1 if parsed ok
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*/
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static int
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parse_time_string(time_t *t, const char *s)
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{
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int year, month, date, hour, minute, second;
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struct tm tm;
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if(strcmp(s, "-") == 0)
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return 0;
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if(sscanf(s, "%04d%02d%02d%02d%02d%02d",
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&year, &month, &date, &hour, &minute, &second) != 6)
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return -1;
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tm.tm_year = year - 1900;
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tm.tm_mon = month - 1;
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tm.tm_mday = date;
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tm.tm_hour = hour;
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tm.tm_min = minute;
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tm.tm_sec = second;
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tm.tm_isdst = 0;
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*t = timegm(&tm);
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return 1;
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}
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/*
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* parse time, allocating space in *t if it's there
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*/
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static int
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parse_time_string_alloc (time_t **t, const char *s)
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{
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time_t tmp;
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int ret;
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*t = NULL;
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ret = parse_time_string (&tmp, s);
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if (ret == 1) {
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*t = malloc (sizeof (**t));
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if (*t == NULL)
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krb5_errx (context, 1, "malloc: out of memory");
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**t = tmp;
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}
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return ret;
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}
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/*
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* see parse_time_string for calling convention
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*/
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static int
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parse_integer(unsigned int *u, const char *s)
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{
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if(strcmp(s, "-") == 0)
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return 0;
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if (sscanf(s, "%u", u) != 1)
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return -1;
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return 1;
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}
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static int
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parse_integer_alloc (unsigned int **u, const char *s)
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{
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unsigned int tmp;
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int ret;
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*u = NULL;
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ret = parse_integer (&tmp, s);
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if (ret == 1) {
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*u = malloc (sizeof (**u));
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if (*u == NULL)
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krb5_errx (context, 1, "malloc: out of memory");
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**u = tmp;
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}
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return ret;
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}
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/*
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* Parse dumped keys in `str' and store them in `ent'
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* return -1 if parsing failed
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*/
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static int
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parse_keys(hdb_entry *ent, char *str)
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{
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krb5_error_code ret;
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int tmp;
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char *p;
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size_t i;
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p = strsep(&str, ":");
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if (sscanf(p, "%d", &tmp) != 1)
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return 1;
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ent->kvno = tmp;
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p = strsep(&str, ":");
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while(p){
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Key *key;
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key = realloc(ent->keys.val,
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(ent->keys.len + 1) * sizeof(*ent->keys.val));
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if(key == NULL)
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krb5_errx (context, 1, "realloc: out of memory");
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ent->keys.val = key;
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key = ent->keys.val + ent->keys.len;
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ent->keys.len++;
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memset(key, 0, sizeof(*key));
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if(sscanf(p, "%d", &tmp) == 1) {
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key->mkvno = malloc(sizeof(*key->mkvno));
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*key->mkvno = tmp;
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} else
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key->mkvno = NULL;
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p = strsep(&str, ":");
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if (sscanf(p, "%d", &tmp) != 1)
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return 1;
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key->key.keytype = tmp;
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p = strsep(&str, ":");
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ret = krb5_data_alloc(&key->key.keyvalue, (strlen(p) - 1) / 2 + 1);
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if (ret)
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krb5_err (context, 1, ret, "krb5_data_alloc");
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for(i = 0; i < strlen(p); i += 2) {
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if(sscanf(p + i, "%02x", &tmp) != 1)
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return 1;
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((u_char*)key->key.keyvalue.data)[i / 2] = tmp;
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}
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p = strsep(&str, ":");
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if(strcmp(p, "-") != 0){
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unsigned type;
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size_t p_len;
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if(sscanf(p, "%u/", &type) != 1)
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return 1;
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p = strchr(p, '/');
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if(p == NULL)
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return 1;
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p++;
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p_len = strlen(p);
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key->salt = calloc(1, sizeof(*key->salt));
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if (key->salt == NULL)
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krb5_errx (context, 1, "malloc: out of memory");
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key->salt->type = type;
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if (p_len) {
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if(*p == '\"') {
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ret = krb5_data_copy(&key->salt->salt, p + 1, p_len - 2);
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if (ret)
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krb5_err (context, 1, ret, "krb5_data_copy");
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} else {
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ret = krb5_data_alloc(&key->salt->salt,
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(p_len - 1) / 2 + 1);
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if (ret)
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krb5_err (context, 1, ret, "krb5_data_alloc");
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for(i = 0; i < p_len; i += 2){
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if (sscanf(p + i, "%02x", &tmp) != 1)
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return 1;
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((u_char*)key->salt->salt.data)[i / 2] = tmp;
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}
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}
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} else
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krb5_data_zero (&key->salt->salt);
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}
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p = strsep(&str, ":");
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}
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return 0;
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}
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/*
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* see parse_time_string for calling convention
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*/
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static int
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parse_event(Event *ev, char *s)
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{
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krb5_error_code ret;
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char *p;
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if(strcmp(s, "-") == 0)
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return 0;
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memset(ev, 0, sizeof(*ev));
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p = strsep(&s, ":");
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if(parse_time_string(&ev->time, p) != 1)
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return -1;
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p = strsep(&s, ":");
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ret = krb5_parse_name(context, p, &ev->principal);
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if (ret)
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return -1;
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return 1;
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}
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static int
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parse_event_alloc (Event **ev, char *s)
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{
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Event tmp;
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int ret;
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*ev = NULL;
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ret = parse_event (&tmp, s);
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if (ret == 1) {
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*ev = malloc (sizeof (**ev));
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if (*ev == NULL)
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krb5_errx (context, 1, "malloc: out of memory");
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**ev = tmp;
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}
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return ret;
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}
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static int
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parse_hdbflags2int(HDBFlags *f, const char *s)
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{
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int ret;
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unsigned int tmp;
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ret = parse_integer (&tmp, s);
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if (ret == 1)
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*f = int2HDBFlags (tmp);
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return ret;
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}
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static int
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parse_generation(char *str, GENERATION **gen)
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{
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char *p;
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int v;
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if(strcmp(str, "-") == 0 || *str == '\0') {
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*gen = NULL;
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return 0;
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}
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*gen = calloc(1, sizeof(**gen));
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p = strsep(&str, ":");
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if(parse_time_string(&(*gen)->time, p) != 1)
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return -1;
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p = strsep(&str, ":");
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if(sscanf(p, "%d", &v) != 1)
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return -1;
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(*gen)->usec = v;
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p = strsep(&str, ":");
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if(sscanf(p, "%d", &v) != 1)
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return -1;
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(*gen)->gen = v - 1; /* XXX gets bumped in _hdb_store */
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return 0;
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}
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static int
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parse_extensions(char *str, HDB_extensions **e)
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{
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char *p;
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int ret;
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if(strcmp(str, "-") == 0 || *str == '\0') {
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*e = NULL;
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return 0;
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}
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*e = calloc(1, sizeof(**e));
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p = strsep(&str, ":");
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while (p) {
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HDB_extension ext;
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ssize_t len;
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void *d;
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len = strlen(p);
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d = malloc(len);
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len = hex_decode(p, d, len);
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if (len < 0) {
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free(d);
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return -1;
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}
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ret = decode_HDB_extension(d, len, &ext, NULL);
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free(d);
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if (ret)
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return -1;
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d = realloc((*e)->val, ((*e)->len + 1) * sizeof((*e)->val[0]));
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if (d == NULL)
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abort();
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(*e)->val = d;
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(*e)->val[(*e)->len] = ext;
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(*e)->len++;
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p = strsep(&str, ":");
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}
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return 0;
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}
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/*
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* Parse the dump file in `filename' and create the database (merging
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* iff merge)
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*/
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static int
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doit(const char *filename, int mergep)
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{
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krb5_error_code ret;
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FILE *f;
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char s[8192]; /* XXX should fix this properly */
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char *p;
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int line;
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int flags = O_RDWR;
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struct entry e;
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hdb_entry_ex ent;
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HDB *db = _kadm5_s_get_db(kadm_handle);
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f = fopen(filename, "r");
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if(f == NULL){
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krb5_warn(context, errno, "fopen(%s)", filename);
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return 1;
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}
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ret = kadm5_log_truncate (kadm_handle);
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if (ret) {
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fclose (f);
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krb5_warn(context, ret, "kadm5_log_truncate");
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return 1;
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}
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if(!mergep)
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flags |= O_CREAT | O_TRUNC;
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ret = db->hdb_open(context, db, flags, 0600);
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if(ret){
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krb5_warn(context, ret, "hdb_open");
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fclose(f);
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return 1;
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}
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line = 0;
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ret = 0;
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while(fgets(s, sizeof(s), f) != NULL) {
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line++;
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p = s;
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while (isspace((unsigned char)*p))
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p++;
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e.principal = p;
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for(p = s; *p; p++){
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if(*p == '\\')
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p++;
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else if(isspace((unsigned char)*p)) {
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*p = 0;
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break;
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}
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}
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p = skip_next(p);
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e.key = p;
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p = skip_next(p);
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e.created = p;
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p = skip_next(p);
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e.modified = p;
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p = skip_next(p);
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e.valid_start = p;
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p = skip_next(p);
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e.valid_end = p;
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p = skip_next(p);
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e.pw_end = p;
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p = skip_next(p);
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e.max_life = p;
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p = skip_next(p);
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e.max_renew = p;
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p = skip_next(p);
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e.flags = p;
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p = skip_next(p);
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e.generation = p;
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p = skip_next(p);
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e.extensions = p;
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skip_next(p);
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memset(&ent, 0, sizeof(ent));
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ret = krb5_parse_name(context, e.principal, &ent.entry.principal);
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if(ret) {
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const char *msg = krb5_get_error_message(context, ret);
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fprintf(stderr, "%s:%d:%s (%s)\n",
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filename, line, msg, e.principal);
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krb5_free_error_message(context, msg);
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continue;
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}
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if (parse_keys(&ent.entry, e.key)) {
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fprintf (stderr, "%s:%d:error parsing keys (%s)\n",
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filename, line, e.key);
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hdb_free_entry (context, &ent);
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continue;
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}
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if (parse_event(&ent.entry.created_by, e.created) == -1) {
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fprintf (stderr, "%s:%d:error parsing created event (%s)\n",
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filename, line, e.created);
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hdb_free_entry (context, &ent);
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continue;
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}
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if (parse_event_alloc (&ent.entry.modified_by, e.modified) == -1) {
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fprintf (stderr, "%s:%d:error parsing event (%s)\n",
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filename, line, e.modified);
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hdb_free_entry (context, &ent);
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continue;
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}
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if (parse_time_string_alloc (&ent.entry.valid_start, e.valid_start) == -1) {
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fprintf (stderr, "%s:%d:error parsing time (%s)\n",
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filename, line, e.valid_start);
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hdb_free_entry (context, &ent);
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continue;
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}
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if (parse_time_string_alloc (&ent.entry.valid_end, e.valid_end) == -1) {
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fprintf (stderr, "%s:%d:error parsing time (%s)\n",
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filename, line, e.valid_end);
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hdb_free_entry (context, &ent);
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continue;
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}
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if (parse_time_string_alloc (&ent.entry.pw_end, e.pw_end) == -1) {
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fprintf (stderr, "%s:%d:error parsing time (%s)\n",
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filename, line, e.pw_end);
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hdb_free_entry (context, &ent);
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continue;
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}
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if (parse_integer_alloc (&ent.entry.max_life, e.max_life) == -1) {
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fprintf (stderr, "%s:%d:error parsing lifetime (%s)\n",
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filename, line, e.max_life);
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hdb_free_entry (context, &ent);
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continue;
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}
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if (parse_integer_alloc (&ent.entry.max_renew, e.max_renew) == -1) {
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fprintf (stderr, "%s:%d:error parsing lifetime (%s)\n",
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filename, line, e.max_renew);
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hdb_free_entry (context, &ent);
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continue;
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}
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if (parse_hdbflags2int (&ent.entry.flags, e.flags) != 1) {
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fprintf (stderr, "%s:%d:error parsing flags (%s)\n",
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filename, line, e.flags);
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hdb_free_entry (context, &ent);
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continue;
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}
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if(parse_generation(e.generation, &ent.entry.generation) == -1) {
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fprintf (stderr, "%s:%d:error parsing generation (%s)\n",
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filename, line, e.generation);
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hdb_free_entry (context, &ent);
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continue;
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}
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if(parse_extensions(e.extensions, &ent.entry.extensions) == -1) {
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fprintf (stderr, "%s:%d:error parsing extension (%s)\n",
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filename, line, e.extensions);
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hdb_free_entry (context, &ent);
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continue;
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}
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ret = db->hdb_store(context, db, HDB_F_REPLACE, &ent);
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hdb_free_entry (context, &ent);
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if (ret) {
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krb5_warn(context, ret, "db_store");
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break;
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}
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}
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db->hdb_close(context, db);
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fclose(f);
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return ret != 0;
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}
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extern int local_flag;
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static int
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loadit(int mergep, const char *name, int argc, char **argv)
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{
|
|
if(!local_flag) {
|
|
krb5_warnx(context, "%s is only available in local (-l) mode", name);
|
|
return 0;
|
|
}
|
|
|
|
return doit(argv[0], mergep);
|
|
}
|
|
|
|
int
|
|
load(void *opt, int argc, char **argv)
|
|
{
|
|
return loadit(0, "load", argc, argv);
|
|
}
|
|
|
|
int
|
|
merge(void *opt, int argc, char **argv)
|
|
{
|
|
return loadit(1, "merge", argc, argv);
|
|
}
|