Annotation of src/usr.bin/ssh/radix.c, Revision 1.16.2.4
1.1 deraadt 1: /*
1.13 deraadt 2: * Copyright (c) 1999 Dug Song. All rights reserved.
1.16.2.2 jason 3: * Copyright (c) 2002 Markus Friedl. All rights reserved.
1.8 markus 4: *
1.13 deraadt 5: * Redistribution and use in source and binary forms, with or without
6: * modification, are permitted provided that the following conditions
7: * are met:
8: * 1. Redistributions of source code must retain the above copyright
9: * notice, this list of conditions and the following disclaimer.
10: * 2. Redistributions in binary form must reproduce the above copyright
11: * notice, this list of conditions and the following disclaimer in the
12: * documentation and/or other materials provided with the distribution.
13: *
14: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
15: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
16: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
17: * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
18: * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
19: * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
20: * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
21: * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
23: * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
1.5 deraadt 24: */
1.4 markus 25:
1.1 deraadt 26: #include "includes.h"
1.9 markus 27: #include "uuencode.h"
1.1 deraadt 28:
1.16.2.4! miod 29: RCSID("$OpenBSD: radix.c,v 1.16.2.3 2002/04/23 14:17:47 jason Exp $");
1.12 djm 30:
1.1 deraadt 31: #ifdef AFS
32: #include <krb.h>
1.16 itojun 33:
34: #include <radix.h>
1.16.2.2 jason 35: #include "bufaux.h"
1.1 deraadt 36:
1.16.2.2 jason 37: int
38: creds_to_radix(CREDENTIALS *creds, u_char *buf, size_t buflen)
39: {
40: Buffer b;
41: int ret;
1.1 deraadt 42:
1.16.2.2 jason 43: buffer_init(&b);
1.1 deraadt 44:
1.16.2.2 jason 45: buffer_put_char(&b, 1); /* version */
1.1 deraadt 46:
1.16.2.2 jason 47: buffer_append(&b, creds->service, strlen(creds->service));
48: buffer_put_char(&b, '\0');
49: buffer_append(&b, creds->instance, strlen(creds->instance));
50: buffer_put_char(&b, '\0');
51: buffer_append(&b, creds->realm, strlen(creds->realm));
52: buffer_put_char(&b, '\0');
53: buffer_append(&b, creds->pname, strlen(creds->pname));
54: buffer_put_char(&b, '\0');
55: buffer_append(&b, creds->pinst, strlen(creds->pinst));
56: buffer_put_char(&b, '\0');
1.1 deraadt 57:
1.4 markus 58: /* Null string to repeat the realm. */
1.16.2.2 jason 59: buffer_put_char(&b, '\0');
1.1 deraadt 60:
1.16.2.2 jason 61: buffer_put_int(&b, creds->issue_date);
62: buffer_put_int(&b, krb_life_to_time(creds->issue_date,
63: creds->lifetime));
64: buffer_append(&b, creds->session, sizeof(creds->session));
65: buffer_put_short(&b, creds->kvno);
66:
67: /* 32 bit size + data */
1.16.2.3 jason 68: buffer_put_string(&b, creds->ticket_st.dat, creds->ticket_st.length);
1.16.2.2 jason 69:
70: ret = uuencode(buffer_ptr(&b), buffer_len(&b), (char *)buf, buflen);
71:
72: buffer_free(&b);
73: return ret;
74: }
75:
76: #define GETSTRING(b, t, tlen) \
77: do { \
78: int i, found = 0; \
79: for (i = 0; i < tlen; i++) { \
80: if (buffer_len(b) == 0) \
81: goto done; \
82: t[i] = buffer_get_char(b); \
83: if (t[i] == '\0') { \
84: found = 1; \
85: break; \
86: } \
87: } \
88: if (!found) \
89: goto done; \
90: } while(0)
1.1 deraadt 91:
1.8 markus 92: int
1.4 markus 93: radix_to_creds(const char *buf, CREDENTIALS *creds)
1.1 deraadt 94: {
1.16.2.2 jason 95: Buffer b;
96: char c, version, *space, *p;
97: u_int endTime;
98: int len, blen, ret;
1.1 deraadt 99:
1.16.2.2 jason 100: ret = 0;
101: blen = strlen(buf);
1.4 markus 102:
1.16.2.2 jason 103: /* sanity check for size */
104: if (blen > 8192)
1.4 markus 105: return 0;
106:
1.16.2.2 jason 107: buffer_init(&b);
108: space = buffer_append_space(&b, blen);
1.4 markus 109:
110: /* check version and length! */
1.16.2.2 jason 111: len = uudecode(buf, space, blen);
1.4 markus 112: if (len < 1)
1.16.2.2 jason 113: goto done;
1.4 markus 114:
1.16.2.2 jason 115: version = buffer_get_char(&b);
1.4 markus 116:
1.16.2.2 jason 117: GETSTRING(&b, creds->service, sizeof creds->service);
118: GETSTRING(&b, creds->instance, sizeof creds->instance);
119: GETSTRING(&b, creds->realm, sizeof creds->realm);
120: GETSTRING(&b, creds->pname, sizeof creds->pname);
121: GETSTRING(&b, creds->pinst, sizeof creds->pinst);
1.4 markus 122:
1.16.2.2 jason 123: if (buffer_len(&b) == 0)
124: goto done;
1.4 markus 125:
1.16.2.2 jason 126: /* Ignore possibly different realm. */
127: while (buffer_len(&b) > 0 && (c = buffer_get_char(&b)) != '\0')
128: ;
129:
130: if (buffer_len(&b) == 0)
131: goto done;
1.4 markus 132:
1.16.2.2 jason 133: creds->issue_date = buffer_get_int(&b);
1.4 markus 134:
1.16.2.2 jason 135: endTime = buffer_get_int(&b);
136: creds->lifetime = krb_time_to_life(creds->issue_date, endTime);
137:
138: len = buffer_len(&b);
139: if (len < sizeof(creds->session))
140: goto done;
141: memcpy(&creds->session, buffer_ptr(&b), sizeof(creds->session));
142: buffer_consume(&b, sizeof(creds->session));
143:
144: creds->kvno = buffer_get_short(&b);
145:
146: p = buffer_get_string(&b, &len);
147: if (len < 0 || len > sizeof(creds->ticket_st.dat))
148: goto done;
149: memcpy(&creds->ticket_st.dat, p, len);
150: creds->ticket_st.length = len;
1.16.2.4! miod 151:
1.16.2.2 jason 152: ret = 1;
153: done:
154: buffer_free(&b);
155: return ret;
1.1 deraadt 156: }
157: #endif /* AFS */
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