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: builtin.c,v 1.22 2015/07/02 22:28:15 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 - 2015
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: /* builtin RPC server functions */
50:
51: static int
52: rpcServerClients(RPC_CALL_STDARGS)
53: {
54: rpc_srv_t *srv;
55: rpc_cli_t *c;
56: register int i;
57: int len;
58: const char *str = NULL;
59: char *val;
60: ait_val_t v;
61:
62: RPC_CALLBACK_CHECK_INPUT(cli);
63: srv = RPC_SRV_SERVER(cli);
64:
65: len = array_Size(srv->srv_clients) * STRSIZ;
66: if (!(val = e_malloc(len))) {
67: LOGERR;
68: return -1;
69: } else
70: memset(val, 0, len);
71:
72: for (i = 0; i < array_Size(srv->srv_clients); i++) {
73: c = array(srv->srv_clients, i, rpc_cli_t*);
74: if (!c)
75: continue;
76:
77: str = e_n2addr(&c->cli_sa, &v);
78: if (str)
79: strlcat(val, (char*) str, len);
80: else
81: strlcat(val, "0.0.0.0", len);
82: strlcat(val, " ", len);
83: AIT_FREE_VAL(&v);
84: }
85:
86: /* return values */
87: AIT_SET_STR(ait_getVars(&RPC_RETVARS(cli), 0), val);
88: e_free(val);
89: return 0;
90: }
91:
92: static int
93: rpcServerCalls(RPC_CALL_STDARGS)
94: {
95: rpc_srv_t *srv;
96: rpc_func_t *f;
97: register int i = 0;
98: int len;
99: char *val, str[MAXPATHLEN];
100:
101: RPC_CALLBACK_CHECK_INPUT(cli);
102: srv = RPC_SRV_SERVER(cli);
103:
104: SLIST_FOREACH(f, &srv->srv_funcs, func_next)
105: i++;
106: len = i * STRSIZ;
107:
108: if (!(val = e_malloc(len))) {
109: LOGERR;
110: return -1;
111: } else
112: memset(val, 0, len);
113:
114: SLIST_FOREACH(f, &srv->srv_funcs, func_next)
115: if (AIT_ADDR(&f->func_name)) {
116: memset(str, 0, sizeof str);
117: snprintf(str, sizeof str, "/%hu/0x%p; ", AIT_KEY(&f->func_name),
118: AIT_ADDR(&f->func_name));
119: strlcat(val, str, len);
120: }
121:
122: /* return variables */
123: AIT_SET_STR(ait_getVars(&RPC_RETVARS(cli), 0), val);
124: e_free(val);
125: return 0;
126: }
127:
128: static int
129: rpcServerSessions(RPC_CALL_STDARGS)
130: {
131: rpc_srv_t *srv;
132:
133: RPC_CALLBACK_CHECK_INPUT(cli);
134: srv = RPC_SRV_SERVER(cli);
135:
136: AIT_SET_I32(ait_getVars(&RPC_RETVARS(cli), 2), array_Size(srv->srv_clients));
137: AIT_SET_U8(ait_getVars(&RPC_RETVARS(cli), 0), srv->srv_session.sess_version);
138: AIT_SET_U8(ait_getVars(&RPC_RETVARS(cli), 1), srv->srv_session.sess_instance);
139:
140: return 0;
141: }
142:
143: static int
144: rpcServerShutdown(RPC_CALL_STDARGS)
145: {
146: rpc_srv_t *srv;
147:
148: RPC_CALLBACK_CHECK_INPUT(cli);
149: srv = RPC_SRV_SERVER(cli);
150:
151: srv->srv_kill = 1;
152: if (srv->srv_blob.tid)
153: pthread_kill(srv->srv_blob.tid, SIGFBLOB);
154: return 0;
155: }
156:
157: static int
158: rpcServerPing(RPC_CALL_STDARGS)
159: {
160: if (ntohl((u_long) rpc->call_req.flags) == RPC_REPLY)
161: AIT_SET_U16(ait_getVars(&RPC_RETVARS(cli), 0), random() % USHRT_MAX);
162: return 0;
163: }
164:
165: /* ---------------------------------------------------- */
166:
167: static int
168: rpcBLOBServerShutdown(RPC_CALL_STDARGS)
169: {
170: rpc_srv_t *srv;
171:
172: RPC_CALLBACK_CHECK_INPUT(cli);
173: srv = RPC_SRV_SERVER(cli);
174:
175: rpc_freeBLOBCli(cli);
176:
177: srv->srv_blob.kill = 1;
178: return 0;
179: }
180:
181: static int
182: rpcBLOBServerVars(RPC_CALL_STDARGS)
183: {
184: rpc_srv_t *srv;
185: rpc_blob_t *b;
186: register int i = 0;
187: char *val, str[64];
188: int len;
189:
190: RPC_CALLBACK_CHECK_INPUT(cli);
191: srv = RPC_SRV_SERVER(cli);
192:
193: if (srv->srv_blob.kill) {
194: AIT_SET_STR(ait_getVars(&RPC_RETVARS(cli), 0), "BLOB Server is killed");
195: return 1;
196: }
197:
198: TAILQ_FOREACH(b, &srv->srv_blob.blobs, blob_node)
199: i++;
200: len = i * sizeof str;
201:
202: if (!len) {
203: AIT_SET_STR(ait_getVars(&RPC_RETVARS(cli), 0), "");
204: return 0;
205: }
206:
207: if (!(val = e_malloc(len))) {
208: LOGERR;
209: return -1;
210: } else
211: memset(val, 0, len);
212:
213: TAILQ_FOREACH(b, &srv->srv_blob.blobs, blob_node) {
214: memset(str, 0, sizeof str);
215: snprintf(str, sizeof str, "0x%0X(%lu)=%p ", b->blob_var, (u_long) b->blob_len, b->blob_data);
216: strlcat(val, str, len);
217: }
218:
219: AIT_SET_STR(ait_getVars(&RPC_RETVARS(cli), 0), val);
220: e_free(val);
221: return 0;
222: }
223:
224: static int
225: rpcBLOBServerClients(RPC_CALL_STDARGS)
226: {
227: rpc_srv_t *srv;
228: rpc_cli_t *c;
229: register int i;
230: int len;
231: const char *str = NULL;
232: char *val;
233: ait_val_t v;
234:
235: RPC_CALLBACK_CHECK_INPUT(cli);
236: srv = RPC_SRV_SERVER(cli);
237:
238: if (srv->srv_blob.kill) {
239: AIT_SET_STR(ait_getVars(&RPC_RETVARS(cli), 0), "BLOB Server is killed");
240: return 1;
241: }
242:
243: len = array_Size(srv->srv_blob.clients) * STRSIZ;
244: if (!(val = e_malloc(len))) {
245: LOGERR;
246: return -1;
247: } else
248: memset(val, 0, len);
249:
250: for (i = 0; i < array_Size(srv->srv_clients); i++) {
251: c = array(srv->srv_blob.clients, i, rpc_cli_t*);
252: if (!c)
253: continue;
254:
255: str = e_n2addr(&c->cli_sa, &v);
256: if (str)
257: strlcat(val, (char*) str, len);
258: else
259: strlcat(val, "0.0.0.0", len);
260: strlcat(val, " ", len);
261: AIT_FREE_VAL(&v);
262: }
263:
264: AIT_SET_STR(ait_getVars(&RPC_RETVARS(cli), 0), val);
265: e_free(val);
266: return 0;
267: }
268:
269: /* ----------------------------------------------------------------- */
270:
271: /*
272: * rpc_register_srvPing() - Register ping service function
273: *
274: * @srv = RPC server instance
275: * return: -1 error or 0 ok
276: */
277: int
278: rpc_register_srvPing(rpc_srv_t * __restrict srv)
279: {
280: if (!srv)
281: return -1;
282:
283: if (rpc_srv_registerCall(srv, CALL_SRVPING, rpcServerPing) < 1)
284: return -1;
285:
286: return 0;
287: }
288:
289: /*
290: * rpc_register_srvServices() - Register internal service functions
291: *
292: * @srv = RPC server instance
293: * return: -1 error or 0 ok
294: */
295: int
296: rpc_register_srvServices(rpc_srv_t * __restrict srv)
297: {
298: if (!srv)
299: return -1;
300:
301: if (rpc_srv_registerCall(srv, CALL_SRVSHUTDOWN, rpcServerShutdown) < 1)
302: return -1;
303: if (rpc_srv_registerCall(srv, CALL_SRVCLIENTS, rpcServerClients) < 1)
304: return -1;
305: if (rpc_srv_registerCall(srv, CALL_SRVSESSIONS, rpcServerSessions) < 1)
306: return -1;
307: if (rpc_srv_registerCall(srv, CALL_SRVCALLS, rpcServerCalls) < 1)
308: return -1;
309:
310: return 0;
311: }
312:
313: /*
314: * rpc_register_blobServices() - Register internal service functions
315: *
316: * @srv = RPC server instance
317: * return: -1 error or 0 ok
318: */
319: int
320: rpc_register_blobServices(rpc_srv_t * __restrict srv)
321: {
322: if (!srv)
323: return -1;
324:
325: if (rpc_srv_registerCall(srv, CALL_BLOBSHUTDOWN, rpcBLOBServerShutdown) < 1)
326: return -1;
327: if (rpc_srv_registerCall(srv, CALL_BLOBCLIENTS, rpcBLOBServerClients) < 1)
328: return -1;
329: if (rpc_srv_registerCall(srv, CALL_BLOBVARS, rpcBLOBServerVars) < 1)
330: return -1;
331:
332: return 0;
333: }
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