1: /*************************************************************************
2: * (C) 2010 AITNET ltd - Sofia/Bulgaria - <misho@aitbg.com>
3: * by Michael Pounov <misho@openbsd-bg.org>
4: *
5: * $Author: misho $
6: * $Id: pq.c,v 1.1.2.5 2012/09/19 12:23:12 misho Exp $
7: *
8: **************************************************************************
9: The ELWIX and AITNET software is distributed under the following
10: terms:
11:
12: All of the documentation and software included in the ELWIX and AITNET
13: Releases is copyrighted by ELWIX - Sofia/Bulgaria <info@elwix.org>
14:
15: Copyright 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
16: by Michael Pounov <misho@elwix.org>. All rights reserved.
17:
18: Redistribution and use in source and binary forms, with or without
19: modification, are permitted provided that the following conditions
20: are met:
21: 1. Redistributions of source code must retain the above copyright
22: notice, this list of conditions and the following disclaimer.
23: 2. Redistributions in binary form must reproduce the above copyright
24: notice, this list of conditions and the following disclaimer in the
25: documentation and/or other materials provided with the distribution.
26: 3. All advertising materials mentioning features or use of this software
27: must display the following acknowledgement:
28: This product includes software developed by Michael Pounov <misho@elwix.org>
29: ELWIX - Embedded LightWeight unIX and its contributors.
30: 4. Neither the name of AITNET nor the names of its contributors
31: may be used to endorse or promote products derived from this software
32: without specific prior written permission.
33:
34: THIS SOFTWARE IS PROVIDED BY AITNET AND CONTRIBUTORS ``AS IS'' AND
35: ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
36: IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
37: ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
38: FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
39: DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
40: OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
41: HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
42: LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
43: OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
44: SUCH DAMAGE.
45: */
46: #include "global.h"
47:
48:
49: static inline struct tagUser *
50: _selectPasswd(pwd_root_t * __restrict pwd, u_int uid, const char *csName)
51: {
52: struct tagUser fu;
53:
54: if (!pwd)
55: return NULL;
56: else
57: memset(&fu, 0, sizeof fu);
58:
59: if (csName) {
60: io_setlikeVar(&fu.usr_name, string, strlen(csName) + 1, csName);
61: return RB_FIND(tagPWD, pwd, &fu);
62: }
63:
64: return (struct tagUser*) cfg_findPasswdBy(pwd, PWD_CRIT_UID, uid);
65: }
66:
67: /* --------------------------------------------------------------- */
68:
69: /*
70: * cfg_findPasswdBy() - Find user by criteria position in list
71: *
72: * @pwd = Password root
73: * @criteria = Search criteria [PWD_CRIT_NAME|PWD_CRIT_UID|PWD_CRIT_GID]
74: * @arg1 = Username | UID | GID
75: * return: NULL not found item or error and !=NULL found item
76: */
77: const struct tagUser *
78: cfg_findPasswdBy(pwd_root_t * __restrict pwd, int criteria, ...)
79: {
80: struct tagUser *u;
81: va_list lst;
82: ait_val_t v;
83:
84: if (!pwd)
85: return NULL;
86:
87: va_start(lst, criteria);
88: switch (criteria) {
89: case PWD_CRIT_NAME:
90: AIT_SET_STR(&v, va_arg(lst, char*));
91: break;
92: case PWD_CRIT_UID:
93: case PWD_CRIT_GID:
94: AIT_SET_U32(&v, va_arg(lst, u_int));
95: break;
96: default:
97: return NULL;
98: }
99: va_end(lst);
100:
101: SLIST_FOREACH(u, pwd, usr_next)
102: switch (criteria) {
103: case PWD_CRIT_NAME:
104: if (!io_cmpVar(&u->usr_name, &v)) {
105: AIT_FREE_VAL(&v);
106: return u;
107: }
108: break;
109: case PWD_CRIT_UID:
110: if (AIT_GET_LIKE(&u->usr_uid, u_int) == AIT_GET_U32(&v)) {
111: AIT_FREE_VAL(&v);
112: return u;
113: }
114: break;
115: case PWD_CRIT_GID:
116: if (AIT_GET_LIKE(&u->usr_gid, u_int) == AIT_GET_U32(&v)) {
117: AIT_FREE_VAL(&v);
118: return u;
119: }
120: break;
121: }
122:
123: AIT_FREE_VAL(&v);
124: return NULL;
125: }
126:
127: /*
128: * cfg_unsetPasswd() - Unset item from passwords and free resources
129: *
130: * @pwd = Password root
131: * @criteria = Search criteria [PWD_CRIT_NAME|PWD_CRIT_UID]
132: * @arg1 = Username | UID
133: * return: 0 item not found, -1 error or 1 removed item
134: */
135: int
136: cfg_unsetPasswd(pwd_root_t * __restrict pwd, int criteria, ...)
137: {
138: struct tagUser *u;
139: va_list lst;
140:
141: if (!pwd)
142: return -1;
143:
144: va_start(lst, criteria);
145: switch (criteria) {
146: case PWD_CRIT_NAME:
147: u = _selectPasswd(pwd, 0, va_arg(lst, char*));
148: break;
149: case PWD_CRIT_UID:
150: u = _selectPasswd(pwd, va_arg(lst, u_int), NULL);
151: break;
152: default:
153: va_end(lst);
154: return -1;
155: }
156: va_end(lst);
157: if (!u)
158: return 0;
159:
160: PWD_LOCK(pwd);
161: RB_REMOVE(tagPWD, pwd, u);
162: SLIST_REMOVE(pwd, u, tagUser, usr_next);
163: PWD_UNLOCK(pwd);
164:
165: AIT_FREE_VAL(&u->usr_name);
166: AIT_FREE_VAL(&u->usr_pass);
167: AIT_FREE_VAL(&u->usr_uid);
168: AIT_FREE_VAL(&u->usr_gid);
169: AIT_FREE_VAL(&u->usr_class);
170: AIT_FREE_VAL(&u->usr_change);
171: AIT_FREE_VAL(&u->usr_expire);
172: AIT_FREE_VAL(&u->usr_realm);
173: AIT_FREE_VAL(&u->usr_home);
174: AIT_FREE_VAL(&u->usr_shell);
175: io_free(u);
176: return 1;
177: }
178:
179: /*
180: * cfg_setPasswd() - Set item in password or adding new item if not exists
181: *
182: * @cfg = Password root
183: * @csName = Username
184: * @csPass = Password
185: * @uid = UID
186: * @gid = GID
187: * @Class = Login class
188: * @change = Chage date
189: * @expire = Expire date
190: * @csRealm = Realm
191: * @csHome = Home dir
192: * @csShell = Shell
193: * return: 0 nothing changed, -1 error, 1 found and updated item or 2 added new item
194: */
195: int
196: cfg_setPasswd(pwd_root_t * __restrict pwd, const char *csName, const char *csPass,
197: u_int uid, u_int gid, const char *csClass, u_int change, u_int expire,
198: const char *csRealm, const char *csHome, const char *csShell)
199: {
200: struct tagUser *u;
201:
202: if (!pwd || !csName)
203: return -1;
204:
205: u = _selectPasswd(pwd, 0, csName);
206: if (!u) {
207: /* adding new element */
208: u = io_malloc(sizeof(struct tagUser));
209: if (!u) {
210: cfg_SetErr(io_GetErrno(), "%s", io_GetError());
211: return -1;
212: } else {
213: memset(u, 0, sizeof(struct tagUser));
214:
215: PWD_LOCK(pwd);
216: SLIST_INSERT_HEAD(pwd, u, usr_next);
217: PWD_UNLOCK(pwd);
218: }
219:
220: AIT_SET_STR(&u->usr_name, csName);
221: AIT_SET_STR(&u->usr_pass, csPass);
222: AIT_SET_U32(&u->usr_uid, uid);
223: AIT_SET_U32(&u->usr_gid, gid);
224: AIT_SET_STR(&u->usr_class, csClass);
225: AIT_SET_U32(&u->usr_change, change);
226: AIT_SET_U32(&u->usr_expire, expire);
227: AIT_SET_STR(&u->usr_realm, csRealm);
228: AIT_SET_STR(&u->usr_home, csHome);
229: AIT_SET_STR(&u->usr_shell, csShell);
230:
231: AIT_KEY(&u->usr_name) = crcFletcher16(AIT_GET_LIKE(&u->usr_name, u_short*),
232: io_align(AIT_LEN(&u->usr_name) - 1, 2) / 2);
233:
234: PWD_LOCK(pwd);
235: RB_INSERT(tagPWD, pwd, u);
236: PWD_UNLOCK(pwd);
237: return 2;
238: } else {
239: AIT_FREE_VAL(&u->usr_pass);
240: AIT_FREE_VAL(&u->usr_uid);
241: AIT_FREE_VAL(&u->usr_gid);
242: AIT_FREE_VAL(&u->usr_class);
243: AIT_FREE_VAL(&u->usr_change);
244: AIT_FREE_VAL(&u->usr_expire);
245: AIT_FREE_VAL(&u->usr_realm);
246: AIT_FREE_VAL(&u->usr_home);
247: AIT_FREE_VAL(&u->usr_shell);
248:
249: /* Update element */
250: AIT_SET_STR(&u->usr_pass, csPass);
251: AIT_SET_U32(&u->usr_uid, uid);
252: AIT_SET_U32(&u->usr_gid, gid);
253: AIT_SET_STR(&u->usr_class, csClass);
254: AIT_SET_U32(&u->usr_change, change);
255: AIT_SET_U32(&u->usr_expire, expire);
256: AIT_SET_STR(&u->usr_realm, csRealm);
257: AIT_SET_STR(&u->usr_home, csHome);
258: AIT_SET_STR(&u->usr_shell, csShell);
259: return 1;
260: }
261:
262: /* Nothing happens ... found & values is equal! */
263: return 0;
264: }
265:
266: /*
267: * cfg_getPasswd() - Get item from passwords and return structure from it
268: *
269: * @pwd = Password root
270: * @criteria = Search criteria [PWD_CRIT_NAME|PWD_CRIT_UID]
271: * @arg1 = Username | UID
272: * return: NULL item not found, !=NULL structure found
273: */
274: inline const struct tagUser *
275: cfg_getPasswd(pwd_root_t * __restrict pwd, int criteria, ...)
276: {
277: struct tagUser *u;
278: va_list lst;
279: char *str;
280:
281: if (!pwd)
282: return NULL;
283:
284: va_start(lst, criteria);
285: switch (criteria) {
286: case PWD_CRIT_NAME:
287: str = va_arg(lst, char*);
288: if (!str)
289: u = NULL;
290: else
291: u = _selectPasswd(pwd, 0, str);
292: break;
293: case PWD_CRIT_UID:
294: u = _selectPasswd(pwd, va_arg(lst, u_int), NULL);
295: break;
296: default:
297: u = NULL;
298: break;
299: }
300: va_end(lst);
301:
302: return u;
303: }
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