summaryrefslogtreecommitdiffstats
path: root/src/lib/kadm5/srv/svr_policy.c
blob: 24398c1f4e10f6c0589be3fc0157d506e3bf7bcf (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
/*
 * Copyright 1993 OpenVision Technologies, Inc., All Rights Reserved
 *
 * $Header$
 */

#if !defined(lint) && !defined(__CODECENTER__)
static char *rcsid = "$Header$";
#endif

#include	<sys/types.h>
#include	<kadm5/admin.h>
#include	"server_internal.h"
#include	<stdlib.h>

#define MAX_PW_HISTORY	10
#define MIN_PW_HISTORY	1
#define	MIN_PW_CLASSES	1
#define MAX_PW_CLASSES	5
#define	MIN_PW_LENGTH	1

/*
 * Function: kadm5_create_policy
 * 
 * Purpose: Create Policies in the policy DB.
 *
 * Arguments:
 *	entry	(input) The policy entry to be written out to the DB.
 *	mask	(input)	Specifies which fields in entry are to ge written out
 *			and which get default values.
 *	<return value> 0 if successful otherwise an error code is returned.
 *
 * Requires:
 *	Entry must be a valid principal entry, and mask have a valid value.
 * 
 * Effects:
 *	Verifies that mask does not specify that the refcount should
 *	be set as part of the creation, and calls
 *	kadm5_create_policy_internal.  If the refcount *is*
 *	specified, returns KADM5_BAD_MASK.
 */

kadm5_ret_t
kadm5_create_policy(void *server_handle,
			 kadm5_policy_ent_t entry, long mask)
{
    CHECK_HANDLE(server_handle);

    krb5_db_clr_error();

    if (mask & KADM5_REF_COUNT)
	return KADM5_BAD_MASK;
    else
	return kadm5_create_policy_internal(server_handle, entry, mask);
}

/*
 * Function: kadm5_create_policy_internal
 * 
 * Purpose: Create Policies in the policy DB.
 *
 * Arguments:
 *	entry	(input) The policy entry to be written out to the DB.
 *	mask	(input)	Specifies which fields in entry are to ge written out
 *			and which get default values.
 *	<return value> 0 if successful otherwise an error code is returned.
 *
 * Requires:
 *	Entry must be a valid principal entry, and mask have a valid value.
 * 
 * Effects:
 *	Writes the data to the database, and does a database sync if
 *	successful.
 *
 */

kadm5_ret_t
kadm5_create_policy_internal(void *server_handle,
				  kadm5_policy_ent_t entry, long mask)
{
    kadm5_server_handle_t handle = server_handle;
    osa_policy_ent_rec	pent;
    int			ret;
    char		*p;

    CHECK_HANDLE(server_handle);

    if ((entry == (kadm5_policy_ent_t) NULL) || (entry->policy == NULL))
	return EINVAL;
    if(strlen(entry->policy) == 0)
	return KADM5_BAD_POLICY;
    if (!(mask & KADM5_POLICY))
	return KADM5_BAD_MASK;
	
    pent.name = entry->policy;
    p = entry->policy;
    while(*p != '\0') {
	if(*p < ' ' || *p > '~')
	    return KADM5_BAD_POLICY;
	else
	    p++;
    }
    if (!(mask & KADM5_PW_MAX_LIFE))
	pent.pw_max_life = 0;
    else
	pent.pw_max_life = entry->pw_max_life;
    if (!(mask & KADM5_PW_MIN_LIFE))
	pent.pw_min_life = 0;
    else {
	if((mask & KADM5_PW_MAX_LIFE)) {
	    if(entry->pw_min_life > entry->pw_max_life && entry->pw_max_life != 0)
		return KADM5_BAD_MIN_PASS_LIFE;
	}
	pent.pw_min_life = entry->pw_min_life;
    }
    if (!(mask & KADM5_PW_MIN_LENGTH))
	pent.pw_min_length = MIN_PW_LENGTH;
    else {
	if(entry->pw_min_length < MIN_PW_LENGTH)
	    return KADM5_BAD_LENGTH;
	pent.pw_min_length = entry->pw_min_length;
    }
    if (!(mask & KADM5_PW_MIN_CLASSES))
	pent.pw_min_classes = MIN_PW_CLASSES;
    else {
	if(entry->pw_min_classes > MAX_PW_CLASSES || entry->pw_min_classes < MIN_PW_CLASSES)
	    return KADM5_BAD_CLASS;
	pent.pw_min_classes = entry->pw_min_classes;
    }
    if (!(mask & KADM5_PW_HISTORY_NUM))
	pent.pw_history_num = MIN_PW_HISTORY;
    else {
	if(entry->pw_history_num < MIN_PW_HISTORY ||
	   entry->pw_history_num > MAX_PW_HISTORY)
	    return KADM5_BAD_HISTORY;
	else
	    pent.pw_history_num = entry->pw_history_num;
    }
    if (!(mask & KADM5_REF_COUNT))
	pent.policy_refcnt = 0;
    else
	pent.policy_refcnt = entry->policy_refcnt;
    if ((ret = krb5_db_create_policy(handle->context, &pent)))
	return ret;
    else
	return KADM5_OK;
}
	  
kadm5_ret_t
kadm5_delete_policy(void *server_handle, kadm5_policy_t name)
{
    kadm5_server_handle_t handle = server_handle;
    osa_policy_ent_t		entry;
    int				ret;
    int                         cnt=1;

    CHECK_HANDLE(server_handle);

    krb5_db_clr_error();

    if(name == (kadm5_policy_t) NULL)
	return EINVAL;
    if(strlen(name) == 0)
	return KADM5_BAD_POLICY;
    if((ret = krb5_db_get_policy(handle->context, name, &entry,&cnt)))
	return ret;
    if( cnt != 1 )
	return KADM5_UNK_POLICY;

    if(entry->policy_refcnt != 0) {
	krb5_db_free_policy(handle->context, entry);
	return KADM5_POLICY_REF;
    }
    krb5_db_free_policy(handle->context, entry);
    if ((ret = krb5_db_delete_policy(handle->context, name)))
	return ret;
    else
	return KADM5_OK;
}

kadm5_ret_t
kadm5_modify_policy(void *server_handle,
			 kadm5_policy_ent_t entry, long mask)
{
    CHECK_HANDLE(server_handle);

    krb5_db_clr_error();

    if (mask & KADM5_REF_COUNT)
	return KADM5_BAD_MASK;
    else
	return kadm5_modify_policy_internal(server_handle, entry, mask);
}

kadm5_ret_t
kadm5_modify_policy_internal(void *server_handle,
				  kadm5_policy_ent_t entry, long mask)
{
    kadm5_server_handle_t handle = server_handle;
    osa_policy_ent_t	p;
    int			ret;
    int                 cnt=1;

    CHECK_HANDLE(server_handle);

    if((entry == (kadm5_policy_ent_t) NULL) || (entry->policy == NULL))
	return EINVAL;
    if(strlen(entry->policy) == 0)
	return KADM5_BAD_POLICY;
    if((mask & KADM5_POLICY))
	return KADM5_BAD_MASK;
		
    ret = krb5_db_get_policy(handle->context, entry->policy, &p, &cnt);
    if( ret && (cnt==0) )
	return KADM5_UNK_POLICY;

    if ((mask & KADM5_PW_MAX_LIFE))
	p->pw_max_life = entry->pw_max_life;
    if ((mask & KADM5_PW_MIN_LIFE)) {
	if(entry->pw_min_life > p->pw_max_life && p->pw_max_life != 0)	{
	     krb5_db_free_policy(handle->context, p);
	     return KADM5_BAD_MIN_PASS_LIFE;
	}
	p->pw_min_life = entry->pw_min_life;
    }
    if ((mask & KADM5_PW_MIN_LENGTH)) {
	if(entry->pw_min_length < MIN_PW_LENGTH) {
	      krb5_db_free_policy(handle->context, p);
	      return KADM5_BAD_LENGTH;
	 }
	p->pw_min_length = entry->pw_min_length;
    }
    if ((mask & KADM5_PW_MIN_CLASSES)) {
	if(entry->pw_min_classes > MAX_PW_CLASSES ||
	   entry->pw_min_classes < MIN_PW_CLASSES) {
	     krb5_db_free_policy(handle->context, p);
	     return KADM5_BAD_CLASS;
	}
	p->pw_min_classes = entry->pw_min_classes;
    }
    if ((mask & KADM5_PW_HISTORY_NUM)) {
	if(entry->pw_history_num < MIN_PW_HISTORY ||
	   entry->pw_history_num > MAX_PW_HISTORY) {
	     krb5_db_free_policy(handle->context, p);
	     return KADM5_BAD_HISTORY;
	}
	p->pw_history_num = entry->pw_history_num;
    }
    if ((mask & KADM5_REF_COUNT))
	p->policy_refcnt = entry->policy_refcnt;
    ret = krb5_db_put_policy(handle->context, p);
    krb5_db_free_policy(handle->context, p);
    return ret;
}

kadm5_ret_t
kadm5_get_policy(void *server_handle, kadm5_policy_t name,
		 kadm5_policy_ent_t entry) 
{
    osa_policy_ent_t		t;
    kadm5_policy_ent_rec	entry_local, **entry_orig, *new;
    int				ret;
    kadm5_server_handle_t handle = server_handle;
    int                         cnt=1;

    CHECK_HANDLE(server_handle);

    krb5_db_clr_error();

    /*
     * In version 1, entry is a pointer to a kadm5_policy_ent_t that
     * should be filled with allocated memory.
     */
    if (handle->api_version == KADM5_API_VERSION_1) {
	 entry_orig = (kadm5_policy_ent_rec **) entry;
	 *entry_orig = NULL;
	 entry = &entry_local;
    }
    
    if (name == (kadm5_policy_t) NULL)
	return EINVAL;
    if(strlen(name) == 0)
	return KADM5_BAD_POLICY;
    if((ret = krb5_db_get_policy(handle->context, name, &t, &cnt)))
	return ret;

    if( cnt != 1 )
	return KADM5_UNK_POLICY;

    if ((entry->policy = (char *) malloc(strlen(t->name) + 1)) == NULL) {
	 krb5_db_free_policy(handle->context, t);
	 return ENOMEM;
    }
    strcpy(entry->policy, t->name);
    entry->pw_min_life = t->pw_min_life;
    entry->pw_max_life = t->pw_max_life;
    entry->pw_min_length = t->pw_min_length;
    entry->pw_min_classes = t->pw_min_classes;
    entry->pw_history_num = t->pw_history_num;
    entry->policy_refcnt = t->policy_refcnt;
    krb5_db_free_policy(handle->context, t);

    if (handle->api_version == KADM5_API_VERSION_1) {
	 new = (kadm5_policy_ent_t) malloc(sizeof(kadm5_policy_ent_rec));
	 if (new == NULL) {
	      free(entry->policy);
	      krb5_db_free_policy(handle->context, t);
	      return ENOMEM;
	 }
	 *new = *entry;
	 *entry_orig = new;
    }
    
    return KADM5_OK;
}