Annotation of libaitrpc/src/srv.c, revision 1.9.2.16
1.1 misho 1: /*************************************************************************
2: * (C) 2010 AITNET ltd - Sofia/Bulgaria - <misho@aitbg.com>
3: * by Michael Pounov <misho@openbsd-bg.org>
4: *
5: * $Author: misho $
1.9.2.16! misho 6: * $Id: srv.c,v 1.9.2.15 2012/05/16 12:24:31 misho Exp $
1.1 misho 7: *
1.2 misho 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:
1.7 misho 15: Copyright 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
1.2 misho 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: */
1.1 misho 46: #include "global.h"
47:
48:
1.9.2.4 misho 49: static void *
50: closeClient(sched_task_t *task)
51: {
52: rpc_cli_t *c = TASK_ARG(task);
53: rpc_srv_t *s = c->cli_parent;
54:
1.9.2.6 misho 55: schedCancelby(s->srv_root, taskMAX, CRITERIA_ARG, TASK_ARG(task), NULL);
1.9.2.4 misho 56:
57: /* close client socket */
58: if (TASK_VAL(task))
59: shutdown(c->cli_sock, SHUT_RDWR);
60: close(c->cli_sock);
61:
62: /* free buffer */
63: AIT_FREE_VAL(&c->cli_buf);
64:
65: io_arrayDel(s->srv_clients, c->cli_id, 42);
66: return NULL;
67: }
1.7 misho 68:
69: static void *
70: txPacket(sched_task_t *task)
71: {
72: rpc_cli_t *c = TASK_ARG(task);
73: rpc_srv_t *s = c->cli_parent;
74: rpc_func_t *f = NULL;
1.9.2.4 misho 75: u_char buf[USHRT_MAX] = { 0 };
1.7 misho 76: struct tagRPCCall *rpc = (struct tagRPCCall*) buf;
77: int ret, wlen = sizeof(struct tagRPCCall);
78:
1.9.2.4 misho 79: /* copy RPC header */
80: memcpy(buf, TASK_DATA(task), wlen);
81:
1.7 misho 82: if (rpc->call_argc) {
1.9.2.6 misho 83: f = rpc_srv_getCall(s, ntohs(rpc->call_tag));
1.7 misho 84: if (!f) {
85: rpc->call_argc ^= rpc->call_argc;
86: rpc->call_rep.ret = RPC_ERROR(-1);
87: rpc->call_rep.eno = RPC_ERROR(rpc_Errno);
88: } else {
1.9.2.7 misho 89: rpc->call_argc = htons(io_arraySize(f->func_vars));
1.7 misho 90: /* Go Encapsulate variables */
1.9.2.7 misho 91: ret = io_vars2buffer(buf + wlen, sizeof buf - wlen, f->func_vars);
1.9.2.4 misho 92: /* Free return values */
1.7 misho 93: io_clrVars(f->func_vars);
94: if (ret == -1) {
95: rpc_SetErr(EBADRPC, "Prepare RPC packet failed");
96: rpc->call_argc ^= rpc->call_argc;
97: rpc->call_rep.ret = RPC_ERROR(-1);
98: rpc->call_rep.eno = RPC_ERROR(rpc_Errno);
99: } else
100: wlen += ret;
101: }
102: }
103:
1.8 misho 104: rpc->call_len = htons(wlen);
105:
1.7 misho 106: /* calculate CRC */
107: rpc->call_crc ^= rpc->call_crc;
1.8 misho 108: rpc->call_crc = htons(crcFletcher16((u_short*) buf, wlen / 2));
1.7 misho 109:
110: /* send reply */
1.9.2.4 misho 111: ret = send(TASK_FD(task), buf, wlen, MSG_NOSIGNAL);
112: if (ret == -1 || ret != wlen) {
113: /* close connection */
114: schedEvent(TASK_ROOT(task), closeClient, c, 42, NULL, 0);
115: }
1.7 misho 116:
117: return NULL;
118: }
119:
120: static void *
121: execCall(sched_task_t *task)
122: {
123: rpc_cli_t *c = TASK_ARG(task);
124: rpc_srv_t *s = c->cli_parent;
125: rpc_func_t *f = NULL;
126: array_t *arr = NULL;
1.9.2.4 misho 127: u_char *buf = AIT_GET_BUF(&c->cli_buf) + TASK_VAL(task);
1.7 misho 128: struct tagRPCCall *rpc = (struct tagRPCCall*) buf;
129: int argc = ntohs(rpc->call_argc);
130:
131: /* Go decapsulate variables ... */
1.8 misho 132: if (argc) {
1.7 misho 133: arr = io_buffer2vars(buf + sizeof(struct tagRPCCall),
1.9.2.4 misho 134: AIT_LEN(&c->cli_buf) - TASK_VAL(task) - sizeof(struct tagRPCCall),
1.8 misho 135: argc, 1);
1.7 misho 136: if (!arr) {
137: rpc_SetErr(ERPCMISMATCH, "#%d - %s", io_GetErrno(), io_GetError());
138: rpc->call_argc ^= rpc->call_argc;
139: rpc->call_rep.ret = RPC_ERROR(-1);
140: rpc->call_rep.eno = RPC_ERROR(rpc_Errno);
141: return NULL;
142: }
1.9.2.8 misho 143: } else
144: arr = NULL;
1.7 misho 145:
1.9.2.6 misho 146: if (!(f = rpc_srv_getCall(s, ntohs(rpc->call_tag)))) {
1.7 misho 147: rpc_SetErr(EPROGUNAVAIL, "Function not found at RPC server");
148: rpc->call_argc ^= rpc->call_argc;
149: rpc->call_rep.ret = RPC_ERROR(-1);
150: rpc->call_rep.eno = RPC_ERROR(rpc_Errno);
151: } else {
1.8 misho 152: /* if client doesn't want reply */
153: argc = rpc->call_req.flags & RPC_NOREPLY;
1.7 misho 154: rpc->call_rep.ret = RPC_ERROR(rpc_srv_execCall(f, rpc, arr));
155: if (rpc->call_rep.ret == htonl(-1)) {
156: rpc->call_rep.eno = RPC_ERROR(errno);
157: rpc->call_argc ^= rpc->call_argc;
158: } else {
159: rpc->call_rep.eno ^= rpc->call_rep.eno;
1.8 misho 160: if (argc) {
161: /* without reply */
162: io_clrVars(f->func_vars);
163: rpc->call_argc ^= rpc->call_argc;
1.9.2.8 misho 164: } else {
165: /* reply */
1.9.2.7 misho 166: rpc->call_argc = htons(io_arraySize(f->func_vars));
1.9.2.8 misho 167: }
1.7 misho 168: }
169: }
170:
1.9.2.10 misho 171: io_arrayDestroy(&arr);
1.7 misho 172: return NULL;
173: }
174:
175: static void *
176: rxPacket(sched_task_t *task)
177: {
178: rpc_cli_t *c = TASK_ARG(task);
179: rpc_srv_t *s = c->cli_parent;
1.9.2.4 misho 180: u_char *buf = AIT_GET_BUF(&c->cli_buf);
181: int len, rlen, noreply;
1.8 misho 182: u_short crc, off = 0;
1.7 misho 183: struct tagRPCCall *rpc;
184:
1.9.2.4 misho 185: memset(buf, 0, AIT_LEN(&c->cli_buf));
186: rlen = recv(TASK_FD(task), buf, AIT_LEN(&c->cli_buf), 0);
187: if (rlen < 1) {
188: /* close connection */
1.9.2.14 misho 189: schedEvent(TASK_ROOT(task), closeClient, c, 42, NULL, 0);
1.7 misho 190: return NULL;
1.9 misho 191: }
1.7 misho 192:
1.8 misho 193: do {
1.9.2.4 misho 194: /* check RPC packet */
1.8 misho 195: if (rlen < sizeof(struct tagRPCCall)) {
1.9.2.14 misho 196: rpc_SetErr(ERPCMISMATCH, "Short RPC packet");
1.8 misho 197:
1.9.2.4 misho 198: schedReadSelf(task);
1.8 misho 199: return NULL;
200: } else
201: rpc = (struct tagRPCCall*) (buf + off);
202:
1.9.2.4 misho 203: len = ntohs(rpc->call_len);
204: rlen -= len;
1.8 misho 205:
206: /* check integrity of packet */
207: crc = ntohs(rpc->call_crc);
208: rpc->call_crc ^= rpc->call_crc;
1.9.2.4 misho 209: if (crc != crcFletcher16((u_short*) (buf + off), len / 2)) {
1.8 misho 210: rpc_SetErr(ERPCMISMATCH, "Bad CRC RPC packet");
1.7 misho 211:
1.9.2.4 misho 212: off += len;
1.8 misho 213: if (rlen < 1)
214: break;
215: else
216: continue;
217: }
1.7 misho 218:
1.8 misho 219: noreply = rpc->call_req.flags & RPC_NOREPLY;
1.7 misho 220:
1.8 misho 221: /* check RPC packet session info */
222: if (rpc_chkPktSession(&rpc->call_session, &s->srv_session)) {
223: rpc_SetErr(ERPCMISMATCH, "Get invalid RPC session");
224: rpc->call_argc ^= rpc->call_argc;
225: rpc->call_rep.ret = RPC_ERROR(-1);
226: rpc->call_rep.eno = RPC_ERROR(errno);
227: } else {
228: /* execute RPC call */
1.9.2.4 misho 229: schedEvent(TASK_ROOT(task), execCall, TASK_ARG(task), off, NULL, 0);
1.8 misho 230: }
1.7 misho 231:
1.8 misho 232: /* send RPC reply */
233: if (!noreply)
1.9.2.4 misho 234: schedWrite(TASK_ROOT(task), txPacket, TASK_ARG(task), TASK_FD(task), rpc, len);
1.7 misho 235:
1.9.2.4 misho 236: off += len;
1.8 misho 237: } while (rlen > 0);
1.7 misho 238:
239: /* lets get next packet */
1.9.2.4 misho 240: schedReadSelf(task);
1.7 misho 241: return NULL;
242: }
243:
1.1 misho 244: static void *
1.9.2.4 misho 245: acceptClients(sched_task_t *task)
1.1 misho 246: {
1.9.2.4 misho 247: rpc_srv_t *srv = TASK_ARG(task);
248: rpc_cli_t *c = NULL;
249: register int i;
250: socklen_t salen = sizeof(io_sockaddr_t);
1.1 misho 251:
1.9.2.4 misho 252: /* check free slots for connect */
253: for (i = 0; i < io_arraySize(srv->srv_clients) &&
254: (c = io_array(srv->srv_clients, i, rpc_cli_t*)); i++);
255: if (c) /* no more free slots! */
256: goto end;
257: c = malloc(sizeof(rpc_cli_t));
258: if (!c) {
1.5 misho 259: LOGERR;
1.9.2.13 misho 260: srv->srv_kill = 1;
1.7 misho 261: return NULL;
262: } else {
1.9.2.4 misho 263: memset(c, 0, sizeof(rpc_cli_t));
264: io_arraySet(srv->srv_clients, i, c);
265: c->cli_id = i;
266: c->cli_parent = srv;
1.7 misho 267: }
268:
1.9.2.6 misho 269: /* alloc empty buffer */
270: AIT_SET_BUF2(&c->cli_buf, 0, srv->srv_netbuf);
271:
1.9.2.4 misho 272: /* accept client */
1.9.2.13 misho 273: c->cli_sock = accept(TASK_FD(task), &c->cli_sa.sa, &salen);
1.9.2.4 misho 274: if (c->cli_sock == -1) {
275: LOGERR;
1.9.2.6 misho 276: AIT_FREE_VAL(&c->cli_buf);
1.9.2.4 misho 277: io_arrayDel(srv->srv_clients, i, 42);
278: goto end;
279: } else
280: fcntl(c->cli_sock, F_SETFL, fcntl(c->cli_sock, F_GETFL) | O_NONBLOCK);
1.7 misho 281:
1.9.2.4 misho 282: schedRead(TASK_ROOT(task), rxPacket, c, c->cli_sock, NULL, 0);
283: end:
284: schedReadSelf(task);
1.7 misho 285: return NULL;
286: }
287:
1.9.2.12 misho 288: /* ------------------------------------------------------ */
289:
1.9.2.14 misho 290: static void *
291: closeBLOBClient(sched_task_t *task)
292: {
293: rpc_cli_t *c = TASK_ARG(task);
294: rpc_srv_t *s = c->cli_parent;
295:
296: schedCancelby(s->srv_blob.root, taskMAX, CRITERIA_ARG, TASK_ARG(task), NULL);
297:
298: /* close client socket */
299: if (TASK_VAL(task))
300: shutdown(c->cli_sock, SHUT_RDWR);
301: close(c->cli_sock);
302:
303: /* free buffer */
304: AIT_FREE_VAL(&c->cli_buf);
305:
306: io_arrayDel(s->srv_blob.clients, c->cli_id, 42);
307: return NULL;
308: }
309:
1.7 misho 310: static void *
311: txBLOB(sched_task_t *task)
312: {
1.9.2.14 misho 313: rpc_cli_t *c = TASK_ARG(task);
314: u_char *buf = AIT_GET_BUF(&c->cli_buf);
1.7 misho 315: struct tagBLOBHdr *blob = (struct tagBLOBHdr *) buf;
316: int wlen = sizeof(struct tagBLOBHdr);
317:
318: /* calculate CRC */
319: blob->hdr_crc ^= blob->hdr_crc;
1.8 misho 320: blob->hdr_crc = htons(crcFletcher16((u_short*) buf, wlen / 2));
1.7 misho 321:
322: /* send reply */
1.9.2.14 misho 323: wlen = send(TASK_FD(task), buf, wlen, MSG_NOSIGNAL);
324: if (wlen == -1 || wlen != sizeof(struct tagBLOBHdr)) {
325: /* close blob connection */
326: schedEvent(TASK_ROOT(task), closeBLOBClient, c, 42, NULL, 0);
327: }
1.7 misho 328:
329: return NULL;
330: }
1.4 misho 331:
1.7 misho 332: static void *
333: rxBLOB(sched_task_t *task)
334: {
335: rpc_cli_t *c = TASK_ARG(task);
336: rpc_srv_t *s = c->cli_parent;
337: rpc_blob_t *b;
1.9.2.14 misho 338: u_char *buf = AIT_GET_BUF(&c->cli_buf);
1.7 misho 339: struct tagBLOBHdr *blob = (struct tagBLOBHdr *) buf;
340: int rlen;
341: u_short crc;
1.5 misho 342:
1.9.2.14 misho 343: memset(buf, 0, AIT_LEN(&c->cli_buf));
344: rlen = recv(TASK_FD(task), buf, AIT_LEN(&c->cli_buf), 0);
345: if (rlen < 1) {
346: /* close blob connection */
347: schedEvent(TASK_ROOT(task), closeBLOBClient, c, 42, NULL, 0);
1.7 misho 348: return NULL;
1.9 misho 349: }
1.6 misho 350:
1.9.2.14 misho 351: /* check BLOB packet */
1.7 misho 352: if (rlen < sizeof(struct tagBLOBHdr)) {
1.9.2.14 misho 353: rpc_SetErr(ERPCMISMATCH, "Short BLOB packet");
354:
355: schedReadSelf(task);
1.7 misho 356: return NULL;
357: }
1.1 misho 358:
1.7 misho 359: /* check integrity of packet */
360: crc = ntohs(blob->hdr_crc);
361: blob->hdr_crc ^= blob->hdr_crc;
1.8 misho 362: if (crc != crcFletcher16((u_short*) buf, rlen / 2)) {
1.7 misho 363: rpc_SetErr(ERPCMISMATCH, "Bad CRC BLOB packet");
1.9.2.14 misho 364:
365: schedReadSelf(task);
1.7 misho 366: return NULL;
367: }
1.5 misho 368:
1.7 misho 369: /* check RPC packet session info */
370: if ((crc = rpc_chkPktSession(&blob->hdr_session, &s->srv_session))) {
371: rpc_SetErr(ERPCMISMATCH, "Get invalid RPC session");
372: blob->hdr_cmd = error;
373: goto end;
374: }
375:
376: /* Go to proceed packet ... */
377: switch (blob->hdr_cmd) {
378: case get:
379: if (!(b = rpc_srv_getBLOB(s, ntohl(blob->hdr_var)))) {
380: rpc_SetErr(EINVAL, "Var=%x not found", ntohl(blob->hdr_var));
381: blob->hdr_cmd = no;
382: blob->hdr_ret = RPC_ERROR(-1);
383: break;
384: } else
385: blob->hdr_len = htonl(b->blob_len);
1.5 misho 386:
1.7 misho 387: if (rpc_srv_blobMap(s, b) != -1) {
388: /* deliver BLOB variable to client */
389: blob->hdr_ret = htonl(rpc_srv_sendBLOB(c, b));
390: rpc_srv_blobUnmap(b);
391: } else {
392: blob->hdr_cmd = error;
393: blob->hdr_ret = RPC_ERROR(-1);
394: }
395: break;
396: case set:
397: if ((b = rpc_srv_registerBLOB(s, ntohl(blob->hdr_len)))) {
398: /* set new BLOB variable for reply :) */
399: blob->hdr_var = htonl(b->blob_var);
400:
401: /* receive BLOB from client */
402: blob->hdr_ret = htonl(rpc_srv_recvBLOB(c, b));
403: rpc_srv_blobUnmap(b);
1.5 misho 404: } else {
1.7 misho 405: blob->hdr_cmd = error;
406: blob->hdr_ret = RPC_ERROR(-1);
407: }
408: break;
409: case unset:
410: if (rpc_srv_unregisterBLOB(s, blob->hdr_var) == -1) {
411: blob->hdr_cmd = error;
412: blob->hdr_ret = RPC_ERROR(-1);
1.1 misho 413: }
414: break;
1.7 misho 415: default:
416: rpc_SetErr(EPROCUNAVAIL, "Unsupported BLOB command %d", blob->hdr_cmd);
417: blob->hdr_cmd = error;
418: blob->hdr_ret = RPC_ERROR(-1);
419: }
1.1 misho 420:
1.7 misho 421: end:
1.9.2.14 misho 422: schedWrite(TASK_ROOT(task), txBLOB, TASK_ARG(task), TASK_FD(task), NULL, 0);
423: schedReadSelf(task);
1.7 misho 424: return NULL;
1.2 misho 425: }
426:
427: static void *
1.9.2.13 misho 428: acceptBLOBClients(sched_task_t *task)
1.2 misho 429: {
1.9.2.13 misho 430: rpc_srv_t *srv = TASK_ARG(task);
431: rpc_cli_t *c = NULL;
432: register int i;
433: socklen_t salen = sizeof(io_sockaddr_t);
1.2 misho 434:
1.9.2.13 misho 435: /* check free slots for connect */
436: for (i = 0; i < io_arraySize(srv->srv_blob.clients) &&
437: (c = io_array(srv->srv_blob.clients, i, rpc_cli_t*)); i++);
438: if (c) /* no more free slots! */
439: goto end;
440: c = malloc(sizeof(rpc_cli_t));
441: if (!c) {
1.7 misho 442: LOGERR;
1.9.2.13 misho 443: srv->srv_kill = srv->srv_blob.kill = 1;
1.7 misho 444: return NULL;
445: } else {
1.9.2.13 misho 446: memset(c, 0, sizeof(rpc_cli_t));
447: io_arraySet(srv->srv_blob.clients, i, c);
448: c->cli_id = i;
449: c->cli_parent = srv;
1.7 misho 450: }
1.4 misho 451:
1.9.2.13 misho 452: /* alloc empty buffer */
453: AIT_SET_BUF2(&c->cli_buf, 0, srv->srv_netbuf);
1.2 misho 454:
1.9.2.13 misho 455: /* accept client */
456: c->cli_sock = accept(TASK_FD(task), &c->cli_sa.sa, &salen);
457: if (c->cli_sock == -1) {
458: LOGERR;
459: AIT_FREE_VAL(&c->cli_buf);
460: io_arrayDel(srv->srv_blob.clients, i, 42);
461: goto end;
462: } else
463: fcntl(c->cli_sock, F_SETFL, fcntl(c->cli_sock, F_GETFL) | O_NONBLOCK);
1.2 misho 464:
1.9.2.14 misho 465: schedRead(TASK_ROOT(task), rxBLOB, c, c->cli_sock, NULL, 0);
1.9.2.13 misho 466: end:
467: schedReadSelf(task);
1.7 misho 468: return NULL;
1.1 misho 469: }
470:
1.9.2.12 misho 471: /* ------------------------------------------------------ */
1.1 misho 472:
473: /*
1.7 misho 474: * rpc_srv_initBLOBServer() - Init & create BLOB Server
475: *
1.4 misho 476: * @srv = RPC server instance
1.2 misho 477: * @Port = Port for bind server, if Port == 0 default port is selected
478: * @diskDir = Disk place for BLOB file objects
479: * return: -1 == error or 0 bind and created BLOB server instance
480: */
481: int
482: rpc_srv_initBLOBServer(rpc_srv_t * __restrict srv, u_short Port, const char *diskDir)
483: {
484: int n = 1;
485:
1.9.2.12 misho 486: if (!srv || srv->srv_kill) {
1.7 misho 487: rpc_SetErr(EINVAL, "Invalid parameters can`t init BLOB server");
1.2 misho 488: return -1;
489: }
490:
491: memset(&srv->srv_blob, 0, sizeof srv->srv_blob);
492: if (access(diskDir, R_OK | W_OK) == -1) {
493: LOGERR;
494: return -1;
495: } else
1.7 misho 496: AIT_SET_STR(&srv->srv_blob.dir, diskDir);
1.2 misho 497:
1.9.2.11 misho 498: /* init blob list */
499: TAILQ_INIT(&srv->srv_blob.blobs);
500:
1.2 misho 501: srv->srv_blob.server.cli_parent = srv;
1.4 misho 502:
1.9.2.10 misho 503: memcpy(&srv->srv_blob.server.cli_sa, &srv->srv_server.cli_sa, sizeof(io_sockaddr_t));
1.9.2.15 misho 504: switch (srv->srv_blob.server.cli_sa.sa.sa_family) {
1.4 misho 505: case AF_INET:
1.9.2.15 misho 506: srv->srv_blob.server.cli_sa.sin.sin_port =
507: htons(Port ? Port : ntohs(srv->srv_blob.server.cli_sa.sin.sin_port) + 1);
1.4 misho 508: break;
509: case AF_INET6:
1.9.2.15 misho 510: srv->srv_blob.server.cli_sa.sin6.sin6_port =
511: htons(Port ? Port : ntohs(srv->srv_blob.server.cli_sa.sin6.sin6_port) + 1);
1.4 misho 512: break;
513: case AF_LOCAL:
1.9.2.15 misho 514: strlcat(srv->srv_blob.server.cli_sa.sun.sun_path, ".blob",
515: sizeof srv->srv_blob.server.cli_sa.sun.sun_path);
1.4 misho 516: break;
517: default:
1.7 misho 518: AIT_FREE_VAL(&srv->srv_blob.dir);
1.4 misho 519: return -1;
1.2 misho 520: }
521:
1.4 misho 522: /* create BLOB server socket */
1.6 misho 523: srv->srv_blob.server.cli_sock = socket(srv->srv_server.cli_sa.sa.sa_family, SOCK_STREAM, 0);
1.2 misho 524: if (srv->srv_blob.server.cli_sock == -1) {
525: LOGERR;
1.7 misho 526: AIT_FREE_VAL(&srv->srv_blob.dir);
1.2 misho 527: return -1;
528: }
529: if (setsockopt(srv->srv_blob.server.cli_sock, SOL_SOCKET, SO_REUSEADDR, &n, sizeof n) == -1) {
530: LOGERR;
531: close(srv->srv_blob.server.cli_sock);
1.7 misho 532: AIT_FREE_VAL(&srv->srv_blob.dir);
1.2 misho 533: return -1;
534: }
1.5 misho 535: n = srv->srv_netbuf;
536: if (setsockopt(srv->srv_blob.server.cli_sock, SOL_SOCKET, SO_SNDBUF, &n, sizeof n) == -1) {
537: LOGERR;
538: close(srv->srv_blob.server.cli_sock);
1.7 misho 539: AIT_FREE_VAL(&srv->srv_blob.dir);
1.5 misho 540: return -1;
541: }
542: if (setsockopt(srv->srv_blob.server.cli_sock, SOL_SOCKET, SO_RCVBUF, &n, sizeof n) == -1) {
543: LOGERR;
544: close(srv->srv_blob.server.cli_sock);
1.7 misho 545: AIT_FREE_VAL(&srv->srv_blob.dir);
1.5 misho 546: return -1;
547: }
1.6 misho 548: if (bind(srv->srv_blob.server.cli_sock, &srv->srv_blob.server.cli_sa.sa,
549: srv->srv_blob.server.cli_sa.sa.sa_len) == -1) {
1.2 misho 550: LOGERR;
551: close(srv->srv_blob.server.cli_sock);
1.7 misho 552: AIT_FREE_VAL(&srv->srv_blob.dir);
1.2 misho 553: return -1;
554: }
555:
1.9.2.10 misho 556: /* allocate pool for concurent blob clients */
557: srv->srv_blob.clients = io_arrayInit(io_arraySize(srv->srv_clients));
1.2 misho 558: if (!srv->srv_blob.clients) {
1.9.2.10 misho 559: rpc_SetErr(io_GetErrno(), "%s", io_GetError());
1.2 misho 560: close(srv->srv_blob.server.cli_sock);
1.7 misho 561: AIT_FREE_VAL(&srv->srv_blob.dir);
1.2 misho 562: return -1;
1.9.2.10 misho 563: }
1.2 misho 564:
1.9.2.12 misho 565: /* init blob scheduler */
566: srv->srv_blob.root = schedBegin();
567: if (!srv->srv_blob.root) {
568: rpc_SetErr(sched_GetErrno(), "%s", sched_GetError());
569: io_arrayDestroy(&srv->srv_blob.clients);
570: close(srv->srv_blob.server.cli_sock);
571: AIT_FREE_VAL(&srv->srv_blob.dir);
572: return -1;
573: }
574:
1.2 misho 575: return 0;
576: }
577:
578: /*
1.7 misho 579: * rpc_srv_endBLOBServer() - Destroy BLOB server, close all opened sockets and free resources
580: *
1.2 misho 581: * @srv = RPC Server instance
582: * return: none
583: */
584: void
585: rpc_srv_endBLOBServer(rpc_srv_t * __restrict srv)
586: {
587: rpc_cli_t *c;
588: register int i;
1.9.2.11 misho 589: rpc_blob_t *b, *tmp;
1.2 misho 590:
1.9.2.12 misho 591: if (!srv)
1.2 misho 592: return;
593:
1.4 misho 594: /* close all clients connections & server socket */
1.9.2.11 misho 595: for (i = 0; i < io_arraySize(srv->srv_blob.clients); i++) {
596: c = io_array(srv->srv_blob.clients, i, rpc_cli_t*);
597: if (c) {
1.2 misho 598: shutdown(c->cli_sock, SHUT_RDWR);
1.9.2.11 misho 599: close(c->cli_sock);
1.2 misho 600:
1.9.2.11 misho 601: io_arrayDel(srv->srv_blob.clients, i, 42);
602: }
1.2 misho 603: }
1.9.2.11 misho 604: io_arrayDestroy(&srv->srv_blob.clients);
605:
606: close(srv->srv_blob.server.cli_sock);
1.2 misho 607:
1.4 misho 608: /* detach blobs */
1.9.2.11 misho 609: TAILQ_FOREACH_SAFE(b, &srv->srv_blob.blobs, blob_node, tmp) {
610: TAILQ_REMOVE(&srv->srv_blob.blobs, b, blob_node);
611:
612: rpc_srv_blobFree(srv, b);
613: free(b);
1.2 misho 614: }
615:
1.9.2.12 misho 616: schedEnd(&srv->srv_blob.root);
1.7 misho 617: AIT_FREE_VAL(&srv->srv_blob.dir);
618:
1.9.2.12 misho 619: srv->srv_blob.kill = 1;
1.2 misho 620: }
621:
622: /*
1.9.2.12 misho 623: * rpc_srv_loopBLOBServer() - Execute Main BLOB server loop and wait for clients requests
1.7 misho 624: *
1.2 misho 625: * @srv = RPC Server instance
626: * return: -1 error or 0 ok, infinite loop ...
627: */
628: int
1.9.2.12 misho 629: rpc_srv_loopBLOBServer(rpc_srv_t * __restrict srv)
1.2 misho 630: {
1.9.2.12 misho 631: if (!srv || srv->srv_kill) {
1.7 misho 632: rpc_SetErr(EINVAL, "Invalid parameter can`t start BLOB server");
1.2 misho 633: return -1;
634: }
635:
1.9.2.12 misho 636: fcntl(srv->srv_blob.server.cli_sock, F_SETFL,
637: fcntl(srv->srv_blob.server.cli_sock, F_GETFL) | O_NONBLOCK);
638:
639: if (listen(srv->srv_blob.server.cli_sock, io_arraySize(srv->srv_blob.clients)) == -1) {
1.2 misho 640: LOGERR;
641: return -1;
1.9.2.12 misho 642: }
1.2 misho 643:
1.9.2.12 misho 644: if (!schedRead(srv->srv_blob.root, acceptBLOBClients, srv,
645: srv->srv_blob.server.cli_sock, NULL, 0)) {
646: rpc_SetErr(sched_GetErrno(), "%s", sched_GetError());
647: return -1;
648: }
1.7 misho 649:
1.9.2.12 misho 650: #if 0
1.2 misho 651: for (c = srv->srv_blob.clients, i = 0; i < srv->srv_numcli && c; i++, c++)
1.6 misho 652: if (!c->cli_sa.sa.sa_family)
1.2 misho 653: break;
654: if (i >= srv->srv_numcli) {
1.5 misho 655: #ifdef HAVE_PTHREAD_YIELD
656: pthread_yield();
657: #endif
1.9.2.1 misho 658: usleep(1000000);
1.2 misho 659: continue;
660: }
661:
1.6 misho 662: c->cli_sock = accept(srv->srv_blob.server.cli_sock, &c->cli_sa.sa, &salen);
1.2 misho 663: if (c->cli_sock == -1) {
664: LOGERR;
665: continue;
666: } else
667: c->cli_parent = srv;
668: }
1.9.2.12 misho 669: #endif
1.2 misho 670:
1.9.2.12 misho 671: /* main rpc loop */
672: schedRun(srv->srv_blob.root, &srv->srv_blob.kill);
1.2 misho 673: return 0;
674: }
675:
676:
677: /*
1.7 misho 678: * rpc_srv_initServer() - Init & create RPC Server
679: *
1.1 misho 680: * @regProgID = ProgramID for authentication & recognition
681: * @regProcID = ProcessID for authentication & recognition
682: * @concurentClients = Concurent clients at same time to this server
1.5 misho 683: * @netBuf = Network buffer length, if =0 == BUFSIZ (also meaning max RPC packet)
1.4 misho 684: * @csHost = Host name or address for bind server, if NULL any address
1.1 misho 685: * @Port = Port for bind server, if Port == 0 default port is selected
686: * return: NULL == error or !=NULL bind and created RPC server instance
687: */
688: rpc_srv_t *
1.9.2.6 misho 689: rpc_srv_initServer(u_int regProgID, u_char regProcID, int concurentClients,
1.9.2.4 misho 690: int netBuf, const char *csHost, u_short Port)
1.1 misho 691: {
692: int n = 1;
1.9.2.4 misho 693: rpc_srv_t *srv = NULL;
1.6 misho 694: io_sockaddr_t sa;
1.1 misho 695:
1.9.2.2 misho 696: if (!concurentClients || !regProgID) {
697: rpc_SetErr(EINVAL, "Invalid parameters can`t init RPC server");
1.1 misho 698: return NULL;
699: }
1.9.2.2 misho 700: if (!io_gethostbyname(csHost, Port, &sa))
701: return NULL;
1.1 misho 702: if (!Port)
703: Port = RPC_DEFPORT;
1.5 misho 704: if (!netBuf)
705: netBuf = BUFSIZ;
1.7 misho 706: else
707: netBuf = io_align(netBuf, 1); /* align netBuf length */
1.1 misho 708:
1.9.2.16! misho 709: #ifdef HAVE_SRANDOMDEV
! 710: srandomdev();
! 711: #else
! 712: time_t tim;
! 713:
! 714: srandom((time(&tim) ^ getpid()));
! 715: #endif
! 716:
1.1 misho 717: srv = malloc(sizeof(rpc_srv_t));
718: if (!srv) {
719: LOGERR;
720: return NULL;
721: } else
722: memset(srv, 0, sizeof(rpc_srv_t));
723:
1.5 misho 724: srv->srv_netbuf = netBuf;
1.1 misho 725: srv->srv_session.sess_version = RPC_VERSION;
726: srv->srv_session.sess_program = regProgID;
727: srv->srv_session.sess_process = regProcID;
728:
729: srv->srv_server.cli_parent = srv;
1.9.2.4 misho 730: memcpy(&srv->srv_server.cli_sa, &sa, sizeof srv->srv_server.cli_sa);
731:
732: /* init functions list */
733: TAILQ_INIT(&srv->srv_funcs);
734:
735: /* init scheduler */
736: srv->srv_root = schedBegin();
737: if (!srv->srv_root) {
738: rpc_SetErr(sched_GetErrno(), "%s", sched_GetError());
739: free(srv);
740: return NULL;
741: }
742:
743: /* init pool for clients */
744: srv->srv_clients = io_arrayInit(concurentClients);
745: if (!srv->srv_clients) {
746: rpc_SetErr(io_GetErrno(), "%s", io_GetError());
747: schedEnd(&srv->srv_root);
748: free(srv);
749: return NULL;
750: }
1.4 misho 751:
752: /* create server socket */
1.9.2.2 misho 753: srv->srv_server.cli_sock = socket(srv->srv_server.cli_sa.sa.sa_family, SOCK_STREAM, 0);
1.1 misho 754: if (srv->srv_server.cli_sock == -1) {
755: LOGERR;
1.9.2.4 misho 756: io_arrayDestroy(&srv->srv_clients);
757: schedEnd(&srv->srv_root);
1.1 misho 758: free(srv);
759: return NULL;
760: }
761: if (setsockopt(srv->srv_server.cli_sock, SOL_SOCKET, SO_REUSEADDR, &n, sizeof n) == -1) {
762: LOGERR;
1.9.2.4 misho 763: goto err;
1.1 misho 764: }
1.5 misho 765: n = srv->srv_netbuf;
766: if (setsockopt(srv->srv_server.cli_sock, SOL_SOCKET, SO_SNDBUF, &n, sizeof n) == -1) {
767: LOGERR;
1.9.2.4 misho 768: goto err;
1.5 misho 769: }
770: if (setsockopt(srv->srv_server.cli_sock, SOL_SOCKET, SO_RCVBUF, &n, sizeof n) == -1) {
771: LOGERR;
1.9.2.4 misho 772: goto err;
1.5 misho 773: }
1.6 misho 774: if (bind(srv->srv_server.cli_sock, &srv->srv_server.cli_sa.sa,
775: srv->srv_server.cli_sa.sa.sa_len) == -1) {
1.1 misho 776: LOGERR;
1.9.2.4 misho 777: goto err;
1.1 misho 778: }
779:
780: return srv;
1.9.2.4 misho 781: err: /* error condition */
782: close(srv->srv_server.cli_sock);
783: io_arrayDestroy(&srv->srv_clients);
784: schedEnd(&srv->srv_root);
785: free(srv);
786: return NULL;
1.1 misho 787: }
788:
789: /*
1.7 misho 790: * rpc_srv_endServer() - Destroy RPC server, close all opened sockets and free resources
791: *
1.6 misho 792: * @psrv = RPC Server instance
1.1 misho 793: * return: none
794: */
795: void
1.6 misho 796: rpc_srv_endServer(rpc_srv_t ** __restrict psrv)
1.1 misho 797: {
798: rpc_cli_t *c;
799: register int i;
1.9.2.4 misho 800: rpc_func_t *f, *tmp;
1.1 misho 801:
1.9.2.16! misho 802: if (!psrv || !*psrv)
1.1 misho 803: return;
804:
1.9.2.12 misho 805: if (!(*psrv)->srv_blob.kill)
806: rpc_srv_endBLOBServer(*psrv);
807:
1.4 misho 808: /* close all clients connections & server socket */
1.9.2.4 misho 809: for (i = 0; i < io_arraySize((*psrv)->srv_clients); i++) {
810: c = io_array((*psrv)->srv_clients, i, rpc_cli_t*);
811: if (c) {
1.1 misho 812: shutdown(c->cli_sock, SHUT_RDWR);
1.2 misho 813: close(c->cli_sock);
1.9.2.6 misho 814:
1.9.2.11 misho 815: io_arrayDel((*psrv)->srv_clients, i, 42);
1.2 misho 816: }
1.1 misho 817: }
1.9.2.4 misho 818: io_arrayDestroy(&(*psrv)->srv_clients);
819:
820: close((*psrv)->srv_server.cli_sock);
1.1 misho 821:
1.4 misho 822: /* detach exported calls */
1.9.2.4 misho 823: TAILQ_FOREACH_SAFE(f, &(*psrv)->srv_funcs, func_node, tmp) {
1.9.2.11 misho 824: TAILQ_REMOVE(&(*psrv)->srv_funcs, f, func_node);
825:
1.6 misho 826: io_freeVars(&f->func_vars);
1.7 misho 827: AIT_FREE_VAL(&f->func_name);
1.2 misho 828: free(f);
829: }
830:
1.9.2.4 misho 831: schedEnd(&(*psrv)->srv_root);
1.6 misho 832: free(*psrv);
833: *psrv = NULL;
1.1 misho 834: }
835:
836: /*
1.7 misho 837: * rpc_srv_loopServer() - Execute Main server loop and wait for clients requests
838: *
1.1 misho 839: * @srv = RPC Server instance
840: * return: -1 error or 0 ok, infinite loop ...
841: */
842: int
1.5 misho 843: rpc_srv_loopServer(rpc_srv_t * __restrict srv)
1.1 misho 844: {
845: if (!srv) {
1.9.2.3 misho 846: rpc_SetErr(EINVAL, "Invalid parameter can`t start RPC server");
1.1 misho 847: return -1;
848: }
849:
1.9.2.6 misho 850: fcntl(srv->srv_server.cli_sock, F_SETFL,
851: fcntl(srv->srv_server.cli_sock, F_GETFL) | O_NONBLOCK);
852:
1.9.2.4 misho 853: if (listen(srv->srv_server.cli_sock, io_arraySize(srv->srv_clients)) == -1) {
1.1 misho 854: LOGERR;
855: return -1;
1.9.2.6 misho 856: }
1.7 misho 857:
1.9.2.4 misho 858: if (!schedRead(srv->srv_root, acceptClients, srv, srv->srv_server.cli_sock, NULL, 0)) {
859: rpc_SetErr(sched_GetErrno(), "%s", sched_GetError());
860: return -1;
1.1 misho 861: }
862:
1.9.2.4 misho 863: /* main rpc loop */
864: schedRun(srv->srv_root, &srv->srv_kill);
1.1 misho 865: return 0;
866: }
867:
868:
869: /*
870: * rpc_srv_execCall() Execute registered call from RPC server
1.7 misho 871: *
1.1 misho 872: * @call = Register RPC call
873: * @rpc = IN RPC call structure
1.5 misho 874: * @args = IN RPC calling arguments from RPC client
1.1 misho 875: * return: -1 error, !=-1 ok
876: */
877: int
1.2 misho 878: rpc_srv_execCall(rpc_func_t * __restrict call, struct tagRPCCall * __restrict rpc,
1.5 misho 879: array_t * __restrict args)
1.1 misho 880: {
881: rpc_callback_t func;
882:
1.9.2.6 misho 883: if (!call || !rpc || !call->func_parent || !AIT_ADDR(&call->func_name)) {
1.7 misho 884: rpc_SetErr(EINVAL, "Invalid parameter can`t exec function");
1.1 misho 885: return -1;
886: }
887:
1.9.2.6 misho 888: func = AIT_GET_LIKE(&call->func_name, rpc_callback_t);
889: return func(call, ntohs(rpc->call_argc), args);
1.1 misho 890: }
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