From 8daa83a594a2e98f39d764422bfbdbc62c9efd44 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 19 Apr 2024 19:20:00 +0200 Subject: Adding upstream version 2:4.20.0+dfsg. Signed-off-by: Daniel Baumann --- third_party/heimdal/kadmin/cpw.c | 232 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 232 insertions(+) create mode 100644 third_party/heimdal/kadmin/cpw.c (limited to 'third_party/heimdal/kadmin/cpw.c') diff --git a/third_party/heimdal/kadmin/cpw.c b/third_party/heimdal/kadmin/cpw.c new file mode 100644 index 0000000..1397317 --- /dev/null +++ b/third_party/heimdal/kadmin/cpw.c @@ -0,0 +1,232 @@ +/* + * Copyright (c) 1997 - 2004 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 "kadmin-commands.h" + +struct cpw_entry_data { + int keepold; + int random_key; + int random_password; + char *password; + krb5_key_data *key_data; + void *kadm_handle; +}; + +static int +set_random_key(void *dup_kadm_handle, krb5_principal principal, int keepold) +{ + krb5_error_code ret; + int i; + krb5_keyblock *keys; + int num_keys; + + ret = kadm5_randkey_principal_3(dup_kadm_handle, principal, keepold, 0, + NULL, &keys, &num_keys); + if(ret) + return ret; + for(i = 0; i < num_keys; i++) + krb5_free_keyblock_contents(context, &keys[i]); + free(keys); + return 0; +} + +static int +set_random_password(void *dup_kadm_handle, + krb5_principal principal, + int keepold) +{ + krb5_error_code ret; + char pw[128]; + char *princ_name; + + ret = krb5_unparse_name(context, principal, &princ_name); + if (ret) + return ret; + + random_password(pw, sizeof(pw)); + ret = kadm5_chpass_principal_3(dup_kadm_handle, principal, keepold, 0, + NULL, pw); + if (ret == 0) + printf ("%s's password set to \"%s\"\n", princ_name, pw); + free(princ_name); + memset_s(pw, sizeof(pw), 0, sizeof(pw)); + return ret; +} + +static int +set_password(void *dup_kadm_handle, + krb5_principal principal, + char *password, + int keepold) +{ + krb5_error_code ret = 0; + char pwbuf[128]; + int aret; + + if(password == NULL) { + char *princ_name; + char *prompt; + + ret = krb5_unparse_name(context, principal, &princ_name); + if (ret) + return ret; + aret = asprintf(&prompt, "%s's Password: ", princ_name); + free (princ_name); + if (aret == -1) + return ENOMEM; + ret = UI_UTIL_read_pw_string(pwbuf, sizeof(pwbuf), prompt, + UI_UTIL_FLAG_VERIFY | + UI_UTIL_FLAG_VERIFY_SILENT); + free (prompt); + if(ret){ + return KRB5_LIBOS_BADPWDMATCH; + } + password = pwbuf; + } + if(ret == 0) + ret = kadm5_chpass_principal_3(dup_kadm_handle, principal, keepold, 0, + NULL, password); + memset_s(pwbuf, sizeof(pwbuf), 0, sizeof(pwbuf)); + return ret; +} + +static int +set_key_data(void *dup_kadm_handle, + krb5_principal principal, + krb5_key_data *key_data, + int keepold) +{ + krb5_error_code ret; + + ret = kadm5_chpass_principal_with_key_3(dup_kadm_handle, principal, keepold, + 3, key_data); + return ret; +} + +static int +do_cpw_entry(krb5_principal principal, void *data) +{ + struct cpw_entry_data *e = data; + + if (e->random_key) + return set_random_key(e->kadm_handle, principal, e->keepold); + else if (e->random_password) + return set_random_password(e->kadm_handle, principal, e->keepold); + else if (e->key_data) + return set_key_data(e->kadm_handle, principal, e->key_data, e->keepold); + else + return set_password(e->kadm_handle, principal, e->password, e->keepold); +} + +int +cpw_entry(struct passwd_options *opt, int argc, char **argv) +{ + krb5_error_code ret = 0; + int i; + struct cpw_entry_data data; + int num; + int16_t n_key_data = 0; + krb5_key_data key_data[3]; + + memset(key_data, 0, sizeof(key_data)); + data.kadm_handle = NULL; + ret = kadm5_dup_context(kadm_handle, &data.kadm_handle); + if (ret) + krb5_err(context, 1, ret, "Could not duplicate kadmin connection"); + data.random_key = opt->random_key_flag; + data.random_password = opt->random_password_flag; + data.password = opt->password_string; + data.key_data = NULL; + + /* + * --keepold is the the default, and it should mean "prune all old keys not + * needed to decrypt extant tickets". + */ + num = 0; + data.keepold = 1; + if (opt->keepold_flag) { + data.keepold = 1; + num++; + } + if (opt->keepallold_flag) { + data.keepold = 2; + num++; + } + if (opt->pruneall_flag) { + data.keepold = 0; + num++; + } + if (num > 1) { + fprintf(stderr, "use only one of --keepold, --keepallold, and --pruneall\n"); + return 1; + } + + num = 0; + if (data.random_key) + ++num; + if (data.random_password) + ++num; + if (data.password) + ++num; + if (opt->key_string) + ++num; + + if (num > 1) { + fprintf (stderr, "give only one of " + "--random-key, --random-password, --password, --key\n"); + return 1; + } + + if (opt->key_string) { + const char *error; + + if (parse_des_key (opt->key_string, key_data, &error)) { + fprintf (stderr, "failed parsing key \"%s\": %s\n", + opt->key_string, error); + return 1; + } + n_key_data = sizeof(key_data)/sizeof(key_data[0]); + data.key_data = key_data; + } + + for(i = 0; i < argc; i++) + ret = foreach_principal(argv[i], do_cpw_entry, "cpw", &data); + + kadm5_destroy(data.kadm_handle); + + if (opt->key_string) + kadm5_free_key_data(kadm_handle, &n_key_data, key_data); + + return ret != 0; +} -- cgit v1.2.3