1 /* $NetBSD: list.c,v 1.2 2017/01/28 21:31:44 christos Exp $ */
2
3 /*
4 * Copyright (c) 1997-2004 Kungliga Tekniska Högskolan
5 * (Royal Institute of Technology, Stockholm, Sweden).
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 *
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 *
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * 3. Neither the name of the Institute nor the names of its contributors
20 * may be used to endorse or promote products derived from this software
21 * without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 */
35
36 #include "ktutil_locl.h"
37 #include <krb5/rtbl.h>
38
39 __RCSID("$NetBSD: list.c,v 1.2 2017/01/28 21:31:44 christos Exp $");
40
41 static int
do_list(struct list_options * opt,const char * keytab_str)42 do_list(struct list_options *opt, const char *keytab_str)
43 {
44 krb5_error_code ret;
45 krb5_keytab keytab;
46 krb5_keytab_entry entry;
47 krb5_kt_cursor cursor;
48 rtbl_t table;
49
50 /* XXX specialcase the ANY type */
51 if(strncasecmp(keytab_str, "ANY:", 4) == 0) {
52 int flag = 0;
53 char buf[1024];
54 keytab_str += 4;
55 ret = 0;
56 while (strsep_copy((const char**)&keytab_str, ",",
57 buf, sizeof(buf)) != -1) {
58 if(flag)
59 printf("\n");
60 if(do_list(opt, buf))
61 ret = 1;
62 flag = 1;
63 }
64 return ret;
65 }
66
67 ret = krb5_kt_resolve(context, keytab_str, &keytab);
68 if (ret) {
69 krb5_warn(context, ret, "resolving keytab %s", keytab_str);
70 return ret;
71 }
72
73 ret = krb5_kt_start_seq_get(context, keytab, &cursor);
74 if(ret) {
75 krb5_warn(context, ret, "krb5_kt_start_seq_get %s", keytab_str);
76 krb5_kt_close(context, keytab);
77 return ret;
78 }
79
80 printf ("%s:\n\n", keytab_str);
81
82 table = rtbl_create();
83 rtbl_add_column_by_id(table, 0, "Vno", RTBL_ALIGN_RIGHT);
84 rtbl_add_column_by_id(table, 1, "Type", 0);
85 rtbl_add_column_by_id(table, 2, "Principal", 0);
86 if (opt->timestamp_flag)
87 rtbl_add_column_by_id(table, 3, "Date", 0);
88 if(opt->keys_flag)
89 rtbl_add_column_by_id(table, 4, "Key", 0);
90 rtbl_add_column_by_id(table, 5, "Aliases", 0);
91 rtbl_set_separator(table, " ");
92
93 while(krb5_kt_next_entry(context, keytab, &entry, &cursor) == 0){
94 char buf[1024], *s;
95
96 snprintf(buf, sizeof(buf), "%d", entry.vno);
97 rtbl_add_column_entry_by_id(table, 0, buf);
98
99 ret = krb5_enctype_to_string(context,
100 entry.keyblock.keytype, &s);
101 if (ret != 0) {
102 snprintf(buf, sizeof(buf), "unknown (%d)", entry.keyblock.keytype);
103 rtbl_add_column_entry_by_id(table, 1, buf);
104 } else {
105 rtbl_add_column_entry_by_id(table, 1, s);
106 free(s);
107 }
108
109 krb5_unparse_name_fixed(context, entry.principal, buf, sizeof(buf));
110 rtbl_add_column_entry_by_id(table, 2, buf);
111
112 if (opt->timestamp_flag) {
113 krb5_format_time(context, entry.timestamp, buf,
114 sizeof(buf), FALSE);
115 rtbl_add_column_entry_by_id(table, 3, buf);
116 }
117 if(opt->keys_flag) {
118 size_t i;
119 s = malloc(2 * entry.keyblock.keyvalue.length + 1);
120 if (s == NULL) {
121 krb5_warnx(context, "malloc failed");
122 ret = ENOMEM;
123 goto out;
124 }
125 for(i = 0; i < entry.keyblock.keyvalue.length; i++)
126 snprintf(s + 2 * i, 3, "%02x",
127 ((unsigned char*)entry.keyblock.keyvalue.data)[i]);
128 rtbl_add_column_entry_by_id(table, 4, s);
129 free(s);
130 }
131 if (entry.aliases) {
132 unsigned int i;
133 struct rk_strpool *p = NULL;
134
135 for (i = 0; i< entry.aliases->len; i++) {
136 krb5_unparse_name_fixed(context, entry.principal, buf, sizeof(buf));
137 p = rk_strpoolprintf(p, "%s%s", buf,
138 i + 1 < entry.aliases->len ? ", " : "");
139
140 }
141 rtbl_add_column_entry_by_id(table, 5, (s = rk_strpoolcollect(p)));
142 free(s);
143 }
144
145 krb5_kt_free_entry(context, &entry);
146 }
147 ret = krb5_kt_end_seq_get(context, keytab, &cursor);
148 rtbl_format(table, stdout);
149
150 out:
151 rtbl_destroy(table);
152
153 krb5_kt_close(context, keytab);
154 return ret;
155 }
156
157 int
kt_list(struct list_options * opt,int argc,char ** argv)158 kt_list(struct list_options *opt, int argc, char **argv)
159 {
160 krb5_error_code ret;
161 char kt[1024];
162
163 if(verbose_flag)
164 opt->timestamp_flag = 1;
165
166 if (keytab_string == NULL) {
167 if((ret = krb5_kt_default_name(context, kt, sizeof(kt))) != 0) {
168 krb5_warn(context, ret, "getting default keytab name");
169 return 1;
170 }
171 keytab_string = kt;
172 }
173 return do_list(opt, keytab_string) != 0;
174 }
175