Annotation of libaitrpc/src/srv.c, revision 1.17.4.8
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 $
1.17.4.8! misho 6: * $Id: srv.c,v 1.17.4.7 2013/08/21 13:02:33 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:
1.14 misho 15: Copyright 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
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:
1.13 misho 49: /* SOCK_STREAM */
50: static void *acceptClients(sched_task_t *);
51: static void *closeClient(sched_task_t *);
52: static void *rxPacket(sched_task_t *);
53: static void *txPacket(sched_task_t *);
54:
55: /* SOCK_DGRAM */
56: static void *freeClient(sched_task_t *);
57: static void *rxUDPPacket(sched_task_t *);
58: static void *txUDPPacket(sched_task_t *);
59:
60: /* SOCK_RAW */
61:
62: static sched_task_func_t cbProto[SOCK_RAW + 1][4] = {
63: { acceptClients, closeClient, rxPacket, txPacket }, /* SOCK_STREAM */
64: { acceptClients, closeClient, rxPacket, txPacket }, /* SOCK_STREAM */
65: { rxUDPPacket, freeClient, rxUDPPacket, txUDPPacket }, /* SOCK_DGRAM */
66: { NULL, NULL, NULL, NULL } /* SOCK_RAW */
67: };
68:
69:
1.17.4.8! misho 70: ait_val_t *
! 71: rpc_getBufVar(rpc_cli_t * __restrict c)
! 72: {
! 73: return array(c->cli_buf, RPC_ISNEXTBUF(c), ait_val_t*);
! 74: }
! 75:
! 76: u_char *
! 77: rpc_getBuffer(rpc_cli_t * __restrict c)
1.17.4.3 misho 78: {
79: u_char *b = NULL;
80:
81: assert(c);
82:
83: if (RPC_ISNEXTBUF(c))
84: b = AIT_GET_BUF(array(c->cli_buf, 1, ait_val_t*));
85: else
86: b = AIT_GET_BUF(array(c->cli_buf, 0, ait_val_t*)) +
87: sizeof(struct tagRPCCall);
88:
89: return b;
90: }
91:
1.17.4.8! misho 92: struct tagRPCCall *
! 93: rpc_getHeader(rpc_cli_t * __restrict c)
1.17.4.3 misho 94: {
95: assert(c);
96:
97: return (struct tagRPCCall*) AIT_GET_BUF(array(c->cli_buf, 0, ait_val_t*));
98: }
99:
1.16 misho 100: void
1.13 misho 101: rpc_freeCli(rpc_cli_t * __restrict c)
1.10 misho 102: {
103: rpc_srv_t *s = c->cli_parent;
104:
1.13 misho 105: schedCancelby(s->srv_root, taskMAX, CRITERIA_ARG, c, NULL);
1.10 misho 106:
1.17.4.1 misho 107: /* free buffer(s) */
108: ait_freeVars(&c->cli_buf);
1.10 misho 109:
1.14 misho 110: array_Del(s->srv_clients, c->cli_id, 0);
1.10 misho 111: if (c)
1.14 misho 112: e_free(c);
1.13 misho 113: }
114:
115:
116: static inline int
1.14 misho 117: _check4freeslot(rpc_srv_t * __restrict srv, sockaddr_t * __restrict sa)
1.13 misho 118: {
119: rpc_cli_t *c = NULL;
120: register int i;
121:
122: /* check free slots for connect */
1.14 misho 123: for (i = 0; i < array_Size(srv->srv_clients) &&
124: (c = array(srv->srv_clients, i, rpc_cli_t*)); i++)
1.13 misho 125: /* check for duplicates */
1.14 misho 126: if (sa && !e_addrcmp(&c->cli_sa, sa, 42))
1.13 misho 127: break;
1.14 misho 128: if (i >= array_Size(srv->srv_clients))
1.13 misho 129: return -1; /* no more free slots! */
130:
131: return i;
132: }
133:
134: static rpc_cli_t *
1.14 misho 135: _allocClient(rpc_srv_t * __restrict srv, sockaddr_t * __restrict sa)
1.13 misho 136: {
137: rpc_cli_t *c = NULL;
138: int n;
139:
140: n = _check4freeslot(srv, sa);
141: if (n == -1)
142: return NULL;
143: else
1.14 misho 144: c = array(srv->srv_clients, n, rpc_cli_t*);
1.13 misho 145:
146: if (!c) {
1.14 misho 147: c = e_malloc(sizeof(rpc_cli_t));
1.13 misho 148: if (!c) {
149: LOGERR;
150: srv->srv_kill = 1;
151: return NULL;
152: } else {
153: memset(c, 0, sizeof(rpc_cli_t));
1.14 misho 154: array_Set(srv->srv_clients, n, c);
1.13 misho 155: c->cli_id = n;
156: c->cli_parent = srv;
157: }
158:
1.17.4.2 misho 159: /* init buffer(s) */
1.17.4.5 misho 160: c->cli_buf = ait_allocVars(2);
1.17.4.1 misho 161: if (!c->cli_buf) {
162: rpc_SetErr(elwix_GetErrno(), "%s", elwix_GetError());
163: array_Del(srv->srv_clients, n, 42);
164: return NULL;
165: } else
166: AIT_SET_BUFSIZ(array(c->cli_buf, 0, ait_val_t*), 0, srv->srv_netbuf);
1.13 misho 167: }
168:
169: return c;
170: }
171:
172:
173: static void *
174: freeClient(sched_task_t *task)
175: {
176: rpc_freeCli(TASK_ARG(task));
177:
178: return NULL;
179: }
180:
181: static void *
182: closeClient(sched_task_t *task)
183: {
184: int sock = ((rpc_cli_t*) TASK_ARG(task))->cli_sock;
185:
186: rpc_freeCli(TASK_ARG(task));
187:
188: /* close client socket */
189: shutdown(sock, SHUT_RDWR);
190: close(sock);
1.10 misho 191: return NULL;
192: }
1.7 misho 193:
194: static void *
195: txPacket(sched_task_t *task)
196: {
197: rpc_cli_t *c = TASK_ARG(task);
198: rpc_srv_t *s = c->cli_parent;
199: rpc_func_t *f = NULL;
1.17.4.4 misho 200: u_char *buf;
1.17.4.5 misho 201: struct tagRPCCall *rpc = (struct tagRPCCall*) TASK_DATA(task);
1.7 misho 202: int ret, wlen = sizeof(struct tagRPCCall);
1.17.4.4 misho 203: int len = sizeof(struct tagRPCCall) + ntohl(rpc->call_len);
1.10 misho 204:
1.17.4.4 misho 205: buf = e_malloc(len);
206: if (!buf) {
207: rpc_SetErr(elwix_GetErrno(), "%s", elwix_GetError());
1.17.4.5 misho 208: /* close connection */
209: schedEvent(TASK_ROOT(task), cbProto[s->srv_proto][CB_CLOSECLIENT],
210: TASK_ARG(task), 0, NULL, 0);
1.17.4.4 misho 211: return NULL;
212: } else {
213: /* copy RPC header */
1.17.4.5 misho 214: memcpy(buf, rpc, wlen);
1.17.4.4 misho 215: rpc = (struct tagRPCCall*) buf;
216: }
1.7 misho 217:
218: if (rpc->call_argc) {
1.10 misho 219: f = rpc_srv_getCall(s, ntohs(rpc->call_tag));
1.7 misho 220: if (!f) {
1.10 misho 221: rpc_SetErr(EPROGUNAVAIL, "Function not found at RPC server");
1.17.4.4 misho 222:
1.7 misho 223: rpc->call_argc ^= rpc->call_argc;
224: rpc->call_rep.ret = RPC_ERROR(-1);
225: rpc->call_rep.eno = RPC_ERROR(rpc_Errno);
226: } else {
1.14 misho 227: rpc->call_argc = htons(array_Size(RPC_RETVARS(c)));
1.7 misho 228: /* Go Encapsulate variables */
1.17.4.4 misho 229: ret = ait_vars2buffer(buf + wlen, len - wlen, RPC_RETVARS(c));
1.10 misho 230: /* Free return values */
1.14 misho 231: ait_freeVars(&c->cli_vars);
1.7 misho 232: if (ret == -1) {
233: rpc_SetErr(EBADRPC, "Prepare RPC packet failed");
1.17.4.4 misho 234:
1.7 misho 235: rpc->call_argc ^= rpc->call_argc;
236: rpc->call_rep.ret = RPC_ERROR(-1);
237: rpc->call_rep.eno = RPC_ERROR(rpc_Errno);
238: } else
239: wlen += ret;
240: }
241: }
242:
1.17.4.4 misho 243: rpc->call_len = htonl(wlen);
1.7 misho 244:
245: /* send reply */
1.10 misho 246: ret = send(TASK_FD(task), buf, wlen, MSG_NOSIGNAL);
247: if (ret == -1 || ret != wlen) {
248: /* close connection */
1.13 misho 249: schedEvent(TASK_ROOT(task), cbProto[s->srv_proto][CB_CLOSECLIENT],
250: TASK_ARG(task), 0, NULL, 0);
1.10 misho 251: }
1.7 misho 252:
1.17.4.5 misho 253: e_free(buf);
1.7 misho 254: return NULL;
255: }
256:
257: static void *
258: execCall(sched_task_t *task)
259: {
260: rpc_cli_t *c = TASK_ARG(task);
261: rpc_srv_t *s = c->cli_parent;
262: rpc_func_t *f = NULL;
263: array_t *arr = NULL;
1.17.4.8! misho 264: u_char *buf = rpc_getBuffer(c);
! 265: struct tagRPCCall *rpc = rpc_getHeader(c);
1.7 misho 266: int argc = ntohs(rpc->call_argc);
267:
268: /* Go decapsulate variables ... */
1.8 misho 269: if (argc) {
1.17.4.3 misho 270: arr = ait_buffer2vars(buf, ntohl(rpc->call_len), argc, 42);
1.7 misho 271: if (!arr) {
1.14 misho 272: rpc_SetErr(ERPCMISMATCH, "#%d - %s", elwix_GetErrno(), elwix_GetError());
1.17.4.3 misho 273:
1.7 misho 274: rpc->call_argc ^= rpc->call_argc;
275: rpc->call_rep.ret = RPC_ERROR(-1);
276: rpc->call_rep.eno = RPC_ERROR(rpc_Errno);
277: return NULL;
278: }
1.10 misho 279: } else
280: arr = NULL;
1.7 misho 281:
1.10 misho 282: if (!(f = rpc_srv_getCall(s, ntohs(rpc->call_tag)))) {
1.7 misho 283: rpc_SetErr(EPROGUNAVAIL, "Function not found at RPC server");
1.17.4.3 misho 284:
1.7 misho 285: rpc->call_argc ^= rpc->call_argc;
286: rpc->call_rep.ret = RPC_ERROR(-1);
287: rpc->call_rep.eno = RPC_ERROR(rpc_Errno);
288: } else {
1.8 misho 289: /* if client doesn't want reply */
1.10 misho 290: argc = RPC_CHK_NOREPLY(rpc);
291: rpc->call_rep.ret = RPC_ERROR(rpc_srv_execCall(c, rpc, f->func_name, arr));
1.7 misho 292: if (rpc->call_rep.ret == htonl(-1)) {
293: rpc->call_rep.eno = RPC_ERROR(errno);
294: rpc->call_argc ^= rpc->call_argc;
295: } else {
296: rpc->call_rep.eno ^= rpc->call_rep.eno;
1.8 misho 297: if (argc) {
298: /* without reply */
1.14 misho 299: ait_freeVars(&c->cli_vars);
1.8 misho 300: rpc->call_argc ^= rpc->call_argc;
1.10 misho 301: } else {
302: /* reply */
1.14 misho 303: rpc->call_argc = htons(array_Size(RPC_RETVARS(c)));
1.10 misho 304: }
1.7 misho 305: }
306: }
307:
1.14 misho 308: array_Destroy(&arr);
1.7 misho 309: return NULL;
310: }
311:
312: static void *
313: rxPacket(sched_task_t *task)
314: {
315: rpc_cli_t *c = TASK_ARG(task);
316: rpc_srv_t *s = c->cli_parent;
1.10 misho 317: int len, rlen, noreply;
1.17.4.3 misho 318: ait_val_t *bufz = array(c->cli_buf, 0, ait_val_t*);
319: u_char *buf = (u_char*) AIT_GET_BUF(bufz);
320: struct tagRPCCall *rpc = (struct tagRPCCall*) buf;
1.7 misho 321:
1.17.4.3 misho 322: memset(buf, 0, AIT_LEN(bufz));
323: /* 1st buffer is last */
324: RPC_CLR_NEXTBUF(c);
325:
326: /* read rpc header */
327: rlen = recv(TASK_FD(task), rpc, MIN(sizeof(struct tagRPCCall), AIT_LEN(bufz)), 0);
1.17.4.5 misho 328: if (rlen < sizeof(struct tagRPCCall) ||
1.17.4.3 misho 329: ntohl(rpc->call_len) < sizeof(struct tagRPCCall)) {
330: /* close connection */
331: schedEvent(TASK_ROOT(task), cbProto[s->srv_proto][CB_CLOSECLIENT],
332: TASK_ARG(task), 0, NULL, 0);
333: return NULL;
1.10 misho 334: } else {
1.17.4.3 misho 335: buf += sizeof(struct tagRPCCall);
336: len = ntohl(rpc->call_len);
1.9 misho 337: }
1.7 misho 338:
1.17.4.3 misho 339: if (len > (AIT_LEN(bufz) - sizeof(struct tagRPCCall))) {
340: /* add extra buffer */
341: if (!(bufz = ait_getVars(&c->cli_buf, 1))) {
342: /* close connection */
343: schedEvent(TASK_ROOT(task), cbProto[s->srv_proto][CB_CLOSECLIENT],
344: TASK_ARG(task), 0, NULL, 0);
1.8 misho 345: return NULL;
1.17.4.3 misho 346: } else {
1.17.4.5 misho 347: AIT_FREE_VAL(bufz);
1.17.4.3 misho 348: AIT_SET_BUFSIZ(bufz, 0, len);
349: buf = AIT_GET_BUF(bufz);
1.10 misho 350: }
1.17.4.3 misho 351: /* buffer isnt last */
352: RPC_SET_NEXTBUF(c);
353: }
1.8 misho 354:
1.17.4.3 misho 355: /* read payload */
356: rlen = recv(TASK_FD(task), buf, len, 0);
357: if (rlen < len) {
358: /* close connection */
359: schedEvent(TASK_ROOT(task), cbProto[s->srv_proto][CB_CLOSECLIENT],
360: TASK_ARG(task), 0, NULL, 0);
361: return NULL;
362: }
1.7 misho 363:
1.17.4.3 misho 364: noreply = RPC_CHK_NOREPLY(rpc);
1.7 misho 365:
1.17.4.3 misho 366: /* check RPC packet session info */
367: if (rpc_chkPktSession(&rpc->call_session, &s->srv_session)) {
368: rpc_SetErr(ERPCMISMATCH, "Get invalid RPC session");
1.7 misho 369:
1.17.4.3 misho 370: rpc->call_argc ^= rpc->call_argc;
371: rpc->call_rep.ret = RPC_ERROR(-1);
372: rpc->call_rep.eno = RPC_ERROR(errno);
373: } else {
374: /* execute RPC call */
375: schedEvent(TASK_ROOT(task), execCall, TASK_ARG(task), noreply, rpc, len);
376: }
1.7 misho 377:
1.17.4.3 misho 378: /* send RPC reply */
379: if (!noreply)
380: schedWrite(TASK_ROOT(task), cbProto[s->srv_proto][CB_TXPACKET],
381: TASK_ARG(task), TASK_FD(task), rpc, len);
1.7 misho 382:
383: /* lets get next packet */
1.17.4.3 misho 384: schedReadSelf(task);
1.7 misho 385: return NULL;
386: }
387:
1.1 misho 388: static void *
1.10 misho 389: acceptClients(sched_task_t *task)
1.1 misho 390: {
1.10 misho 391: rpc_srv_t *srv = TASK_ARG(task);
392: rpc_cli_t *c = NULL;
1.14 misho 393: socklen_t salen = sizeof(sockaddr_t);
1.7 misho 394:
1.13 misho 395: c = _allocClient(srv, NULL);
396: if (!c)
1.10 misho 397: goto end;
398:
399: /* accept client */
400: c->cli_sock = accept(TASK_FD(task), &c->cli_sa.sa, &salen);
401: if (c->cli_sock == -1) {
402: LOGERR;
1.17.4.2 misho 403: ait_freeVars(&c->cli_buf);
1.14 misho 404: array_Del(srv->srv_clients, c->cli_id, 42);
1.10 misho 405: goto end;
1.1 misho 406: } else
1.10 misho 407: fcntl(c->cli_sock, F_SETFL, fcntl(c->cli_sock, F_GETFL) | O_NONBLOCK);
1.1 misho 408:
1.13 misho 409: schedRead(TASK_ROOT(task), cbProto[srv->srv_proto][CB_RXPACKET], c,
410: c->cli_sock, NULL, 0);
1.10 misho 411: end:
412: schedReadSelf(task);
413: return NULL;
414: }
1.5 misho 415:
1.7 misho 416:
1.10 misho 417: static void *
1.13 misho 418: txUDPPacket(sched_task_t *task)
1.10 misho 419: {
420: rpc_cli_t *c = TASK_ARG(task);
421: rpc_srv_t *s = c->cli_parent;
1.13 misho 422: rpc_func_t *f = NULL;
1.17.4.5 misho 423: u_char *buf;
424: struct tagRPCCall *rpc = (struct tagRPCCall*) TASK_DATA(task);
1.13 misho 425: int ret, wlen = sizeof(struct tagRPCCall);
1.17.4.5 misho 426: int len = sizeof(struct tagRPCCall) + ntohl(rpc->call_len);
1.13 misho 427: struct timespec ts = { DEF_RPC_TIMEOUT, 0 };
428:
429: schedCancelby(TASK_ROOT(task), taskTIMER, CRITERIA_DATA, TASK_ARG(task), NULL);
430: schedTimer(TASK_ROOT(task), cbProto[s->srv_proto][CB_CLOSECLIENT],
431: TASK_ARG(task), ts, TASK_ARG(task), 0);
432:
1.17.4.5 misho 433: buf = e_malloc(len);
434: if (!buf) {
435: rpc_SetErr(elwix_GetErrno(), "%s", elwix_GetError());
436: /* close connection */
437: schedEvent(TASK_ROOT(task), cbProto[s->srv_proto][CB_CLOSECLIENT],
438: TASK_ARG(task), 0, NULL, 0);
439: return NULL;
440: } else {
441: /* copy RPC header */
442: memcpy(buf, rpc, wlen);
443: rpc = (struct tagRPCCall*) buf;
444: }
1.13 misho 445:
446: if (rpc->call_argc) {
447: f = rpc_srv_getCall(s, ntohs(rpc->call_tag));
448: if (!f) {
449: rpc_SetErr(EPROGUNAVAIL, "Function not found at RPC server");
1.17.4.5 misho 450:
1.13 misho 451: rpc->call_argc ^= rpc->call_argc;
452: rpc->call_rep.ret = RPC_ERROR(-1);
453: rpc->call_rep.eno = RPC_ERROR(rpc_Errno);
454: } else {
1.14 misho 455: rpc->call_argc = htons(array_Size(RPC_RETVARS(c)));
1.13 misho 456: /* Go Encapsulate variables */
1.17.4.5 misho 457: ret = ait_vars2buffer(buf + wlen, len - wlen, RPC_RETVARS(c));
1.13 misho 458: /* Free return values */
1.14 misho 459: ait_freeVars(&c->cli_vars);
1.13 misho 460: if (ret == -1) {
461: rpc_SetErr(EBADRPC, "Prepare RPC packet failed");
1.17.4.5 misho 462:
1.13 misho 463: rpc->call_argc ^= rpc->call_argc;
464: rpc->call_rep.ret = RPC_ERROR(-1);
465: rpc->call_rep.eno = RPC_ERROR(rpc_Errno);
466: } else
467: wlen += ret;
468: }
469: }
1.7 misho 470:
1.17.4.5 misho 471: rpc->call_len = htonl(wlen);
1.7 misho 472:
1.13 misho 473: /* calculate CRC */
474: rpc->call_crc ^= rpc->call_crc;
475: rpc->call_crc = htons(crcFletcher16((u_short*) buf, wlen / 2));
476:
477: /* send reply */
478: ret = sendto(TASK_FD(task), buf, wlen, MSG_NOSIGNAL,
479: &c->cli_sa.sa, c->cli_sa.sa.sa_len);
480: if (ret == -1 || ret != wlen) {
481: /* close connection */
482: schedEvent(TASK_ROOT(task), cbProto[s->srv_proto][CB_CLOSECLIENT],
483: TASK_ARG(task), 0, NULL, 0);
484: }
485:
1.17.4.5 misho 486: e_free(buf);
1.13 misho 487: return NULL;
488: }
489:
490: static void *
491: rxUDPPacket(sched_task_t *task)
492: {
493: rpc_srv_t *srv = TASK_ARG(task);
494: rpc_cli_t *c = NULL;
495: int len, rlen, noreply;
1.17.4.5 misho 496: ait_val_t *bufz;
497: u_char *buf = NULL;
498: struct tagRPCCall rpcbuf, *rpc;
499: sockaddr_t sa[2];
1.14 misho 500: socklen_t salen;
1.13 misho 501: struct timespec ts = { DEF_RPC_TIMEOUT, 0 };
502:
1.17.4.5 misho 503: memset(&rpcbuf, 0, sizeof rpcbuf);
504:
1.13 misho 505: /* receive connect packet */
1.17.4.5 misho 506: salen = sa[0].ss.ss_len = sizeof(sockaddr_t);
507: rlen = recvfrom(TASK_FD(task), &rpcbuf, sizeof rpcbuf, 0, &sa[0].sa, &salen);
508: if (rlen < sizeof(struct tagRPCCall) || ntohl(rpcbuf.call_len) < sizeof(struct tagRPCCall))
509: goto end;
510: else
511: len = ntohl(rpcbuf.call_len);
512:
513: buf = e_malloc(len);
514: if (!buf)
1.13 misho 515: goto end;
1.17.4.5 misho 516: else
517: memset(buf, 0, len);
1.13 misho 518:
1.17.4.5 misho 519: /* read payload */
520: salen = sa[1].ss.ss_len = sizeof(sockaddr_t);
521: rlen = recvfrom(TASK_FD(task), buf, len, 0, &sa[1].sa, &salen);
522: if (rlen < len || memcmp(&sa[0], &sa[1], sizeof sa[0]))
523: goto end;
524:
525: c = _allocClient(srv, sa);
1.13 misho 526: if (!c)
527: goto end;
528: else {
1.17.4.5 misho 529: /* add extra buffer */
530: if (!(bufz = ait_getVars(&c->cli_buf, 1)))
531: goto end;
532: else {
533: AIT_FREE_VAL(bufz);
534: AIT_SET_BUFSIZ(bufz, 0, len);
535: /* buffer isnt last */
536: RPC_SET_NEXTBUF(c);
537: }
538:
1.17.4.8! misho 539: rpc = rpc_getHeader(c);
1.17.4.5 misho 540: memcpy(rpc, &rpcbuf, sizeof(struct tagRPCCall));
1.17.4.8! misho 541: memcpy(rpc_getBuffer(c), buf, len);
1.17.4.5 misho 542:
1.13 misho 543: c->cli_sock = TASK_FD(task);
1.17.4.5 misho 544: memcpy(&c->cli_sa, sa, sizeof c->cli_sa);
1.13 misho 545: /* armed timer for close stateless connection */
546: schedCancelby(TASK_ROOT(task), taskTIMER, CRITERIA_DATA, c, NULL);
547: schedTimer(TASK_ROOT(task), cbProto[srv->srv_proto][CB_CLOSECLIENT],
548: c, ts, c, 0);
549: }
550:
1.17.4.5 misho 551: /* check integrity of packet */
552: if (ntohs(rpc->call_crc) != crcFletcher16((u_short*) buf, len / 2)) {
553: rpc_SetErr(ERPCMISMATCH, "Bad CRC RPC packet");
554: goto end;
555: }
1.13 misho 556:
1.17.4.5 misho 557: noreply = RPC_CHK_NOREPLY(rpc);
1.13 misho 558:
1.17.4.5 misho 559: /* check RPC packet session info */
560: if (rpc_chkPktSession(&rpc->call_session, &srv->srv_session)) {
561: rpc_SetErr(ERPCMISMATCH, "Get invalid RPC session");
1.13 misho 562:
1.17.4.5 misho 563: rpc->call_argc ^= rpc->call_argc;
564: rpc->call_rep.ret = RPC_ERROR(-1);
565: rpc->call_rep.eno = RPC_ERROR(errno);
566: } else {
567: /* execute RPC call */
568: schedEvent(TASK_ROOT(task), execCall, c, noreply, rpc, len);
569: }
1.13 misho 570:
1.17.4.5 misho 571: /* send RPC reply */
572: if (!noreply)
573: schedWrite(TASK_ROOT(task), cbProto[srv->srv_proto][CB_TXPACKET],
574: c, TASK_FD(task), rpc, len);
1.13 misho 575: end:
1.17.4.5 misho 576: if (buf)
577: e_free(buf);
1.13 misho 578: schedReadSelf(task);
579: return NULL;
580: }
581:
582: /* ------------------------------------------------------ */
583:
1.16 misho 584: void
1.13 misho 585: rpc_freeBLOBCli(rpc_cli_t * __restrict c)
586: {
587: rpc_srv_t *s = c->cli_parent;
588:
589: schedCancelby(s->srv_blob.root, taskMAX, CRITERIA_ARG, c, NULL);
1.10 misho 590:
1.17.4.2 misho 591: /* free buffer(s) */
592: ait_freeVars(&c->cli_buf);
1.10 misho 593:
1.14 misho 594: array_Del(s->srv_blob.clients, c->cli_id, 0);
1.10 misho 595: if (c)
1.14 misho 596: e_free(c);
1.13 misho 597: }
598:
599:
600: static void *
601: closeBLOBClient(sched_task_t *task)
602: {
603: int sock = ((rpc_cli_t*) TASK_ARG(task))->cli_sock;
604:
605: rpc_freeBLOBCli(TASK_ARG(task));
606:
607: /* close client socket */
608: shutdown(sock, SHUT_RDWR);
609: close(sock);
1.7 misho 610: return NULL;
611: }
612:
613: static void *
614: txBLOB(sched_task_t *task)
615: {
1.10 misho 616: rpc_cli_t *c = TASK_ARG(task);
1.17.4.6 misho 617: u_char *buf = AIT_GET_BUF(array(c->cli_buf, 0, ait_val_t*));
1.7 misho 618: int wlen = sizeof(struct tagBLOBHdr);
619:
620: /* send reply */
1.10 misho 621: wlen = send(TASK_FD(task), buf, wlen, MSG_NOSIGNAL);
622: if (wlen == -1 || wlen != sizeof(struct tagBLOBHdr)) {
623: /* close blob connection */
624: schedEvent(TASK_ROOT(task), closeBLOBClient, c, 42, NULL, 0);
625: }
1.7 misho 626:
627: return NULL;
628: }
1.4 misho 629:
1.7 misho 630: static void *
631: rxBLOB(sched_task_t *task)
632: {
633: rpc_cli_t *c = TASK_ARG(task);
634: rpc_srv_t *s = c->cli_parent;
635: rpc_blob_t *b;
1.10 misho 636: struct tagBLOBHdr blob;
1.7 misho 637: int rlen;
638:
1.10 misho 639: memset(&blob, 0, sizeof blob);
640: rlen = recv(TASK_FD(task), &blob, sizeof blob, 0);
641: if (rlen < 1) {
642: /* close blob connection */
643: schedEvent(TASK_ROOT(task), closeBLOBClient, c, 42, NULL, 0);
1.7 misho 644: return NULL;
645: }
1.5 misho 646:
1.10 misho 647: /* check BLOB packet */
648: if (rlen < sizeof(struct tagBLOBHdr)) {
649: rpc_SetErr(ERPCMISMATCH, "Short BLOB packet");
1.6 misho 650:
1.10 misho 651: schedReadSelf(task);
1.7 misho 652: return NULL;
653: }
1.1 misho 654:
1.7 misho 655: /* check RPC packet session info */
1.15 misho 656: if (rpc_chkPktSession(&blob.hdr_session, &s->srv_session)) {
1.7 misho 657: rpc_SetErr(ERPCMISMATCH, "Get invalid RPC session");
1.10 misho 658: blob.hdr_cmd = error;
1.7 misho 659: goto end;
660: }
661:
662: /* Go to proceed packet ... */
1.10 misho 663: switch (blob.hdr_cmd) {
1.7 misho 664: case get:
1.10 misho 665: if (!(b = rpc_srv_getBLOB(s, ntohl(blob.hdr_var)))) {
666: rpc_SetErr(EINVAL, "Var=%x not found", ntohl(blob.hdr_var));
667: blob.hdr_cmd = no;
668: blob.hdr_ret = RPC_ERROR(-1);
1.7 misho 669: break;
670: } else
1.10 misho 671: blob.hdr_len = htonl(b->blob_len);
1.5 misho 672:
1.7 misho 673: if (rpc_srv_blobMap(s, b) != -1) {
674: /* deliver BLOB variable to client */
1.10 misho 675: blob.hdr_ret = htonl(rpc_srv_sendBLOB(c, b));
1.7 misho 676: rpc_srv_blobUnmap(b);
677: } else {
1.10 misho 678: blob.hdr_cmd = error;
679: blob.hdr_ret = RPC_ERROR(-1);
1.7 misho 680: }
681: break;
682: case set:
1.17 misho 683: if ((b = rpc_srv_registerBLOB(s, ntohl(blob.hdr_len),
684: ntohl(blob.hdr_ret)))) {
1.7 misho 685: /* set new BLOB variable for reply :) */
1.10 misho 686: blob.hdr_var = htonl(b->blob_var);
1.7 misho 687:
688: /* receive BLOB from client */
1.10 misho 689: blob.hdr_ret = htonl(rpc_srv_recvBLOB(c, b));
1.7 misho 690: rpc_srv_blobUnmap(b);
1.5 misho 691: } else {
1.10 misho 692: blob.hdr_cmd = error;
693: blob.hdr_ret = RPC_ERROR(-1);
1.7 misho 694: }
695: break;
696: case unset:
1.11 misho 697: if (rpc_srv_unregisterBLOB(s, ntohl(blob.hdr_var)) == -1) {
1.10 misho 698: blob.hdr_cmd = error;
699: blob.hdr_ret = RPC_ERROR(-1);
1.1 misho 700: }
701: break;
1.7 misho 702: default:
1.10 misho 703: rpc_SetErr(EPROCUNAVAIL, "Unsupported BLOB command %d", blob.hdr_cmd);
704: blob.hdr_cmd = error;
705: blob.hdr_ret = RPC_ERROR(-1);
1.7 misho 706: }
1.1 misho 707:
1.7 misho 708: end:
1.17.4.6 misho 709: memcpy(AIT_ADDR(array(c->cli_buf, 0, ait_val_t*)), &blob, sizeof blob);
1.10 misho 710: schedWrite(TASK_ROOT(task), txBLOB, TASK_ARG(task), TASK_FD(task), NULL, 0);
711: schedReadSelf(task);
1.7 misho 712: return NULL;
1.2 misho 713: }
714:
715: static void *
1.17 misho 716: flushBLOB(sched_task_t *task)
717: {
718: rpc_srv_t *srv = TASK_ARG(task);
719: rpc_blob_t *b, *tmp;
720:
721: TAILQ_FOREACH_SAFE(b, &srv->srv_blob.blobs, blob_node, tmp) {
722: TAILQ_REMOVE(&srv->srv_blob.blobs, b, blob_node);
723:
724: rpc_srv_blobFree(srv, b);
725: e_free(b);
726: }
727:
728: schedSignalSelf(task);
729: return NULL;
730: }
731:
732: static void *
1.10 misho 733: acceptBLOBClients(sched_task_t *task)
1.2 misho 734: {
1.10 misho 735: rpc_srv_t *srv = TASK_ARG(task);
736: rpc_cli_t *c = NULL;
737: register int i;
1.14 misho 738: socklen_t salen = sizeof(sockaddr_t);
1.12 misho 739: #ifdef TCP_NOPUSH
740: int n = 1;
741: #endif
1.7 misho 742:
1.10 misho 743: /* check free slots for connect */
1.14 misho 744: for (i = 0; i < array_Size(srv->srv_blob.clients) &&
745: (c = array(srv->srv_blob.clients, i, rpc_cli_t*)); i++);
1.10 misho 746: if (c) /* no more free slots! */
747: goto end;
1.14 misho 748: c = e_malloc(sizeof(rpc_cli_t));
1.10 misho 749: if (!c) {
1.7 misho 750: LOGERR;
1.10 misho 751: srv->srv_kill = srv->srv_blob.kill = 1;
1.7 misho 752: return NULL;
753: } else {
1.10 misho 754: memset(c, 0, sizeof(rpc_cli_t));
1.14 misho 755: array_Set(srv->srv_blob.clients, i, c);
1.10 misho 756: c->cli_id = i;
757: c->cli_parent = srv;
1.7 misho 758: }
1.4 misho 759:
1.17.4.2 misho 760: /* init buffer(s) */
761: c->cli_buf = ait_allocVars(1);
762: if (!c->cli_buf) {
763: rpc_SetErr(elwix_GetErrno(), "%s", elwix_GetError());
764: array_Del(srv->srv_blob.clients, i, 42);
765: goto end;
766: } else
767: AIT_SET_BUFSIZ(array(c->cli_buf, 0, ait_val_t*), 0, srv->srv_netbuf);
1.2 misho 768:
1.10 misho 769: /* accept client */
770: c->cli_sock = accept(TASK_FD(task), &c->cli_sa.sa, &salen);
771: if (c->cli_sock == -1) {
772: LOGERR;
1.17.4.2 misho 773: ait_freeVars(&c->cli_buf);
1.14 misho 774: array_Del(srv->srv_blob.clients, i, 42);
1.10 misho 775: goto end;
1.12 misho 776: } else {
777: #ifdef TCP_NOPUSH
778: setsockopt(c->cli_sock, IPPROTO_TCP, TCP_NOPUSH, &n, sizeof n);
779: #endif
1.10 misho 780: fcntl(c->cli_sock, F_SETFL, fcntl(c->cli_sock, F_GETFL) | O_NONBLOCK);
1.12 misho 781: }
1.2 misho 782:
1.10 misho 783: schedRead(TASK_ROOT(task), rxBLOB, c, c->cli_sock, NULL, 0);
784: end:
785: schedReadSelf(task);
1.7 misho 786: return NULL;
1.1 misho 787: }
788:
1.10 misho 789: /* ------------------------------------------------------ */
1.1 misho 790:
791: /*
1.7 misho 792: * rpc_srv_initBLOBServer() - Init & create BLOB Server
793: *
1.4 misho 794: * @srv = RPC server instance
1.2 misho 795: * @Port = Port for bind server, if Port == 0 default port is selected
796: * @diskDir = Disk place for BLOB file objects
797: * return: -1 == error or 0 bind and created BLOB server instance
798: */
799: int
800: rpc_srv_initBLOBServer(rpc_srv_t * __restrict srv, u_short Port, const char *diskDir)
801: {
802: int n = 1;
803:
1.10 misho 804: if (!srv || srv->srv_kill) {
1.7 misho 805: rpc_SetErr(EINVAL, "Invalid parameters can`t init BLOB server");
1.2 misho 806: return -1;
807: }
808:
809: memset(&srv->srv_blob, 0, sizeof srv->srv_blob);
810: if (access(diskDir, R_OK | W_OK) == -1) {
811: LOGERR;
812: return -1;
813: } else
1.7 misho 814: AIT_SET_STR(&srv->srv_blob.dir, diskDir);
1.2 misho 815:
1.10 misho 816: /* init blob list */
817: TAILQ_INIT(&srv->srv_blob.blobs);
818:
1.2 misho 819: srv->srv_blob.server.cli_parent = srv;
1.4 misho 820:
1.14 misho 821: memcpy(&srv->srv_blob.server.cli_sa, &srv->srv_server.cli_sa, sizeof(sockaddr_t));
1.10 misho 822: switch (srv->srv_blob.server.cli_sa.sa.sa_family) {
1.4 misho 823: case AF_INET:
1.10 misho 824: srv->srv_blob.server.cli_sa.sin.sin_port =
825: htons(Port ? Port : ntohs(srv->srv_blob.server.cli_sa.sin.sin_port) + 1);
1.4 misho 826: break;
827: case AF_INET6:
1.10 misho 828: srv->srv_blob.server.cli_sa.sin6.sin6_port =
829: htons(Port ? Port : ntohs(srv->srv_blob.server.cli_sa.sin6.sin6_port) + 1);
1.4 misho 830: break;
831: case AF_LOCAL:
1.10 misho 832: strlcat(srv->srv_blob.server.cli_sa.sun.sun_path, ".blob",
833: sizeof srv->srv_blob.server.cli_sa.sun.sun_path);
1.4 misho 834: break;
835: default:
1.7 misho 836: AIT_FREE_VAL(&srv->srv_blob.dir);
1.4 misho 837: return -1;
1.2 misho 838: }
839:
1.4 misho 840: /* create BLOB server socket */
1.6 misho 841: srv->srv_blob.server.cli_sock = socket(srv->srv_server.cli_sa.sa.sa_family, SOCK_STREAM, 0);
1.2 misho 842: if (srv->srv_blob.server.cli_sock == -1) {
843: LOGERR;
1.7 misho 844: AIT_FREE_VAL(&srv->srv_blob.dir);
1.2 misho 845: return -1;
846: }
847: if (setsockopt(srv->srv_blob.server.cli_sock, SOL_SOCKET, SO_REUSEADDR, &n, sizeof n) == -1) {
848: LOGERR;
849: close(srv->srv_blob.server.cli_sock);
1.7 misho 850: AIT_FREE_VAL(&srv->srv_blob.dir);
1.2 misho 851: return -1;
852: }
1.5 misho 853: n = srv->srv_netbuf;
854: if (setsockopt(srv->srv_blob.server.cli_sock, SOL_SOCKET, SO_SNDBUF, &n, sizeof n) == -1) {
855: LOGERR;
856: close(srv->srv_blob.server.cli_sock);
1.7 misho 857: AIT_FREE_VAL(&srv->srv_blob.dir);
1.5 misho 858: return -1;
859: }
860: if (setsockopt(srv->srv_blob.server.cli_sock, SOL_SOCKET, SO_RCVBUF, &n, sizeof n) == -1) {
861: LOGERR;
862: close(srv->srv_blob.server.cli_sock);
1.7 misho 863: AIT_FREE_VAL(&srv->srv_blob.dir);
1.5 misho 864: return -1;
865: }
1.6 misho 866: if (bind(srv->srv_blob.server.cli_sock, &srv->srv_blob.server.cli_sa.sa,
867: srv->srv_blob.server.cli_sa.sa.sa_len) == -1) {
1.2 misho 868: LOGERR;
869: close(srv->srv_blob.server.cli_sock);
1.7 misho 870: AIT_FREE_VAL(&srv->srv_blob.dir);
1.2 misho 871: return -1;
1.13 misho 872: } else
873: fcntl(srv->srv_blob.server.cli_sock, F_SETFL,
874: fcntl(srv->srv_blob.server.cli_sock, F_GETFL) | O_NONBLOCK);
875:
1.2 misho 876:
1.10 misho 877: /* allocate pool for concurent blob clients */
1.14 misho 878: srv->srv_blob.clients = array_Init(array_Size(srv->srv_clients));
1.2 misho 879: if (!srv->srv_blob.clients) {
1.14 misho 880: rpc_SetErr(elwix_GetErrno(), "%s", elwix_GetError());
1.2 misho 881: close(srv->srv_blob.server.cli_sock);
1.7 misho 882: AIT_FREE_VAL(&srv->srv_blob.dir);
1.2 misho 883: return -1;
1.10 misho 884: }
1.2 misho 885:
1.10 misho 886: /* init blob scheduler */
887: srv->srv_blob.root = schedBegin();
888: if (!srv->srv_blob.root) {
889: rpc_SetErr(sched_GetErrno(), "%s", sched_GetError());
1.14 misho 890: array_Destroy(&srv->srv_blob.clients);
1.10 misho 891: close(srv->srv_blob.server.cli_sock);
892: AIT_FREE_VAL(&srv->srv_blob.dir);
893: return -1;
894: }
1.2 misho 895:
896: return 0;
897: }
898:
899: /*
1.7 misho 900: * rpc_srv_endBLOBServer() - Destroy BLOB server, close all opened sockets and free resources
901: *
1.2 misho 902: * @srv = RPC Server instance
903: * return: none
904: */
1.16 misho 905: void
1.2 misho 906: rpc_srv_endBLOBServer(rpc_srv_t * __restrict srv)
907: {
1.10 misho 908: if (!srv)
1.2 misho 909: return;
910:
1.10 misho 911: srv->srv_blob.kill = 1;
1.17 misho 912:
913: schedEnd(&srv->srv_blob.root);
1.2 misho 914: }
915:
916: /*
1.10 misho 917: * rpc_srv_loopBLOBServer() - Execute Main BLOB server loop and wait for clients requests
1.7 misho 918: *
1.2 misho 919: * @srv = RPC Server instance
920: * return: -1 error or 0 ok, infinite loop ...
921: */
922: int
1.10 misho 923: rpc_srv_loopBLOBServer(rpc_srv_t * __restrict srv)
1.2 misho 924: {
1.10 misho 925: rpc_cli_t *c;
1.2 misho 926: register int i;
1.10 misho 927: rpc_blob_t *b, *tmp;
928: struct timespec ts = { RPC_SCHED_POLLING, 0 };
1.2 misho 929:
1.10 misho 930: if (!srv || srv->srv_kill) {
1.7 misho 931: rpc_SetErr(EINVAL, "Invalid parameter can`t start BLOB server");
1.2 misho 932: return -1;
933: }
934:
1.14 misho 935: if (listen(srv->srv_blob.server.cli_sock, array_Size(srv->srv_blob.clients)) == -1) {
1.2 misho 936: LOGERR;
937: return -1;
1.10 misho 938: }
939:
1.17 misho 940: schedSignal(srv->srv_blob.root, flushBLOB, srv, SIGFBLOB, NULL, 0);
1.10 misho 941: if (!schedRead(srv->srv_blob.root, acceptBLOBClients, srv,
942: srv->srv_blob.server.cli_sock, NULL, 0)) {
943: rpc_SetErr(sched_GetErrno(), "%s", sched_GetError());
944: return -1;
945: }
1.2 misho 946:
1.10 misho 947: schedPolling(srv->srv_blob.root, &ts, NULL);
948: /* main rpc loop */
949: schedRun(srv->srv_blob.root, &srv->srv_blob.kill);
1.7 misho 950:
1.17 misho 951: /* detach blobs */
952: TAILQ_FOREACH_SAFE(b, &srv->srv_blob.blobs, blob_node, tmp) {
953: TAILQ_REMOVE(&srv->srv_blob.blobs, b, blob_node);
954:
955: rpc_srv_blobFree(srv, b);
956: e_free(b);
957: }
958:
1.10 misho 959: /* close all clients connections & server socket */
1.14 misho 960: for (i = 0; i < array_Size(srv->srv_blob.clients); i++) {
961: c = array(srv->srv_blob.clients, i, rpc_cli_t*);
1.10 misho 962: if (c) {
963: shutdown(c->cli_sock, SHUT_RDWR);
964: close(c->cli_sock);
965:
966: schedCancelby(srv->srv_blob.root, taskMAX, CRITERIA_ARG, c, NULL);
1.17.4.2 misho 967: ait_freeVars(&c->cli_buf);
1.2 misho 968: }
1.14 misho 969: array_Del(srv->srv_blob.clients, i, 42);
1.10 misho 970: }
1.14 misho 971: array_Destroy(&srv->srv_blob.clients);
1.2 misho 972:
1.10 misho 973: close(srv->srv_blob.server.cli_sock);
1.2 misho 974:
1.10 misho 975: AIT_FREE_VAL(&srv->srv_blob.dir);
1.2 misho 976: return 0;
977: }
978:
979:
980: /*
1.7 misho 981: * rpc_srv_initServer() - Init & create RPC Server
982: *
1.15 misho 983: * @InstID = Instance for authentication & recognition
1.1 misho 984: * @concurentClients = Concurent clients at same time to this server
1.10 misho 985: * @netBuf = Network buffer length (min:512 bytes), if =0 == BUFSIZ (also meaning max RPC packet)
1.4 misho 986: * @csHost = Host name or address for bind server, if NULL any address
1.1 misho 987: * @Port = Port for bind server, if Port == 0 default port is selected
1.13 misho 988: * @proto = Protocol, if == 0 choose SOCK_STREAM
1.1 misho 989: * return: NULL == error or !=NULL bind and created RPC server instance
990: */
991: rpc_srv_t *
1.15 misho 992: rpc_srv_initServer(u_char InstID, int concurentClients, int netBuf,
993: const char *csHost, u_short Port, int proto)
1.1 misho 994: {
1.10 misho 995: int n = 1;
1.1 misho 996: rpc_srv_t *srv = NULL;
1.14 misho 997: sockaddr_t sa = E_SOCKADDR_INIT;
1.1 misho 998:
1.15 misho 999: if (!concurentClients || (proto < 0 || proto > SOCK_DGRAM)) {
1.10 misho 1000: rpc_SetErr(EINVAL, "Invalid parameters can`t init RPC server");
1.1 misho 1001: return NULL;
1002: }
1.14 misho 1003: if (!e_gethostbyname(csHost, Port, &sa))
1.10 misho 1004: return NULL;
1.1 misho 1005: if (!Port)
1006: Port = RPC_DEFPORT;
1.13 misho 1007: if (!proto)
1008: proto = SOCK_STREAM;
1.10 misho 1009: if (netBuf < RPC_MIN_BUFSIZ)
1.5 misho 1010: netBuf = BUFSIZ;
1.7 misho 1011: else
1.14 misho 1012: netBuf = E_ALIGN(netBuf, 2); /* align netBuf length */
1.10 misho 1013:
1014: #ifdef HAVE_SRANDOMDEV
1015: srandomdev();
1016: #else
1017: time_t tim;
1018:
1019: srandom((time(&tim) ^ getpid()));
1020: #endif
1.1 misho 1021:
1.14 misho 1022: srv = e_malloc(sizeof(rpc_srv_t));
1.1 misho 1023: if (!srv) {
1024: LOGERR;
1025: return NULL;
1026: } else
1027: memset(srv, 0, sizeof(rpc_srv_t));
1028:
1.13 misho 1029: srv->srv_proto = proto;
1.5 misho 1030: srv->srv_netbuf = netBuf;
1.1 misho 1031: srv->srv_session.sess_version = RPC_VERSION;
1.15 misho 1032: srv->srv_session.sess_instance = InstID;
1.1 misho 1033:
1034: srv->srv_server.cli_parent = srv;
1.10 misho 1035: memcpy(&srv->srv_server.cli_sa, &sa, sizeof srv->srv_server.cli_sa);
1036:
1.12 misho 1037: /* init functions */
1038: pthread_mutex_init(&srv->srv_funcs.mtx, NULL);
1039: SLIST_INIT(&srv->srv_funcs);
1040: AVL_INIT(&srv->srv_funcs);
1.10 misho 1041:
1042: /* init scheduler */
1043: srv->srv_root = schedBegin();
1044: if (!srv->srv_root) {
1045: rpc_SetErr(sched_GetErrno(), "%s", sched_GetError());
1.12 misho 1046: pthread_mutex_destroy(&srv->srv_funcs.mtx);
1.14 misho 1047: e_free(srv);
1.10 misho 1048: return NULL;
1049: }
1050:
1051: /* init pool for clients */
1.14 misho 1052: srv->srv_clients = array_Init(concurentClients);
1.10 misho 1053: if (!srv->srv_clients) {
1.14 misho 1054: rpc_SetErr(elwix_GetErrno(), "%s", elwix_GetError());
1.10 misho 1055: schedEnd(&srv->srv_root);
1.12 misho 1056: pthread_mutex_destroy(&srv->srv_funcs.mtx);
1.14 misho 1057: e_free(srv);
1.10 misho 1058: return NULL;
1059: }
1.4 misho 1060:
1061: /* create server socket */
1.13 misho 1062: srv->srv_server.cli_sock = socket(srv->srv_server.cli_sa.sa.sa_family, srv->srv_proto, 0);
1.1 misho 1063: if (srv->srv_server.cli_sock == -1) {
1064: LOGERR;
1.14 misho 1065: array_Destroy(&srv->srv_clients);
1.10 misho 1066: schedEnd(&srv->srv_root);
1.12 misho 1067: pthread_mutex_destroy(&srv->srv_funcs.mtx);
1.14 misho 1068: e_free(srv);
1.1 misho 1069: return NULL;
1070: }
1071: if (setsockopt(srv->srv_server.cli_sock, SOL_SOCKET, SO_REUSEADDR, &n, sizeof n) == -1) {
1072: LOGERR;
1.10 misho 1073: goto err;
1.1 misho 1074: }
1.5 misho 1075: n = srv->srv_netbuf;
1076: if (setsockopt(srv->srv_server.cli_sock, SOL_SOCKET, SO_SNDBUF, &n, sizeof n) == -1) {
1077: LOGERR;
1.10 misho 1078: goto err;
1.5 misho 1079: }
1080: if (setsockopt(srv->srv_server.cli_sock, SOL_SOCKET, SO_RCVBUF, &n, sizeof n) == -1) {
1081: LOGERR;
1.10 misho 1082: goto err;
1.5 misho 1083: }
1.6 misho 1084: if (bind(srv->srv_server.cli_sock, &srv->srv_server.cli_sa.sa,
1085: srv->srv_server.cli_sa.sa.sa_len) == -1) {
1.1 misho 1086: LOGERR;
1.10 misho 1087: goto err;
1.13 misho 1088: } else
1089: fcntl(srv->srv_server.cli_sock, F_SETFL,
1090: fcntl(srv->srv_server.cli_sock, F_GETFL) | O_NONBLOCK);
1.1 misho 1091:
1.10 misho 1092: rpc_register_srvPing(srv);
1.8 misho 1093:
1.1 misho 1094: return srv;
1.10 misho 1095: err: /* error condition */
1096: close(srv->srv_server.cli_sock);
1.14 misho 1097: array_Destroy(&srv->srv_clients);
1.10 misho 1098: schedEnd(&srv->srv_root);
1.12 misho 1099: pthread_mutex_destroy(&srv->srv_funcs.mtx);
1.14 misho 1100: e_free(srv);
1.10 misho 1101: return NULL;
1.1 misho 1102: }
1103:
1104: /*
1.7 misho 1105: * rpc_srv_endServer() - Destroy RPC server, close all opened sockets and free resources
1106: *
1.6 misho 1107: * @psrv = RPC Server instance
1.1 misho 1108: * return: none
1109: */
1.16 misho 1110: void
1.6 misho 1111: rpc_srv_endServer(rpc_srv_t ** __restrict psrv)
1.1 misho 1112: {
1.10 misho 1113: if (!psrv || !*psrv)
1.1 misho 1114: return;
1115:
1.10 misho 1116: /* if send kill to blob server */
1.17 misho 1117: rpc_srv_endBLOBServer(*psrv);
1.1 misho 1118:
1.10 misho 1119: (*psrv)->srv_kill = 1;
1120: sleep(RPC_SCHED_POLLING);
1.2 misho 1121:
1.17 misho 1122: schedEnd(&(*psrv)->srv_root);
1123:
1.12 misho 1124: pthread_mutex_destroy(&(*psrv)->srv_funcs.mtx);
1.14 misho 1125: e_free(*psrv);
1.6 misho 1126: *psrv = NULL;
1.1 misho 1127: }
1128:
1129: /*
1.7 misho 1130: * rpc_srv_loopServer() - Execute Main server loop and wait for clients requests
1131: *
1.1 misho 1132: * @srv = RPC Server instance
1133: * return: -1 error or 0 ok, infinite loop ...
1134: */
1135: int
1.5 misho 1136: rpc_srv_loopServer(rpc_srv_t * __restrict srv)
1.1 misho 1137: {
1.10 misho 1138: rpc_cli_t *c;
1.1 misho 1139: register int i;
1.12 misho 1140: rpc_func_t *f;
1.10 misho 1141: struct timespec ts = { RPC_SCHED_POLLING, 0 };
1.1 misho 1142:
1143: if (!srv) {
1.10 misho 1144: rpc_SetErr(EINVAL, "Invalid parameter can`t start RPC server");
1.1 misho 1145: return -1;
1146: }
1147:
1.13 misho 1148: if (srv->srv_proto == SOCK_STREAM)
1.14 misho 1149: if (listen(srv->srv_server.cli_sock, array_Size(srv->srv_clients)) == -1) {
1.13 misho 1150: LOGERR;
1151: return -1;
1152: }
1.1 misho 1153:
1.13 misho 1154: if (!schedRead(srv->srv_root, cbProto[srv->srv_proto][CB_ACCEPTCLIENT], srv,
1155: srv->srv_server.cli_sock, NULL, 0)) {
1.10 misho 1156: rpc_SetErr(sched_GetErrno(), "%s", sched_GetError());
1157: return -1;
1158: }
1.7 misho 1159:
1.10 misho 1160: schedPolling(srv->srv_root, &ts, NULL);
1.7 misho 1161: /* main rpc loop */
1.10 misho 1162: schedRun(srv->srv_root, &srv->srv_kill);
1163:
1164: /* close all clients connections & server socket */
1.14 misho 1165: for (i = 0; i < array_Size(srv->srv_clients); i++) {
1166: c = array(srv->srv_clients, i, rpc_cli_t*);
1.10 misho 1167: if (c) {
1168: shutdown(c->cli_sock, SHUT_RDWR);
1169: close(c->cli_sock);
1170:
1171: schedCancelby(srv->srv_root, taskMAX, CRITERIA_ARG, c, NULL);
1.14 misho 1172: ait_freeVars(&RPC_RETVARS(c));
1.17.4.2 misho 1173: ait_freeVars(&c->cli_buf);
1.1 misho 1174: }
1.14 misho 1175: array_Del(srv->srv_clients, i, 42);
1.10 misho 1176: }
1.14 misho 1177: array_Destroy(&srv->srv_clients);
1.2 misho 1178:
1.10 misho 1179: close(srv->srv_server.cli_sock);
1.2 misho 1180:
1.10 misho 1181: /* detach exported calls */
1.12 misho 1182: RPC_FUNCS_LOCK(&srv->srv_funcs);
1183: while ((f = SLIST_FIRST(&srv->srv_funcs))) {
1184: SLIST_REMOVE_HEAD(&srv->srv_funcs, func_next);
1.1 misho 1185:
1.10 misho 1186: AIT_FREE_VAL(&f->func_name);
1.14 misho 1187: e_free(f);
1.1 misho 1188: }
1.12 misho 1189: srv->srv_funcs.avlh_root = NULL;
1190: RPC_FUNCS_UNLOCK(&srv->srv_funcs);
1.1 misho 1191:
1192: return 0;
1193: }
1194:
1195:
1196: /*
1197: * rpc_srv_execCall() Execute registered call from RPC server
1.7 misho 1198: *
1.10 misho 1199: * @cli = RPC client
1.1 misho 1200: * @rpc = IN RPC call structure
1.10 misho 1201: * @funcname = Execute RPC function
1.5 misho 1202: * @args = IN RPC calling arguments from RPC client
1.1 misho 1203: * return: -1 error, !=-1 ok
1204: */
1205: int
1.10 misho 1206: rpc_srv_execCall(rpc_cli_t * __restrict cli, struct tagRPCCall * __restrict rpc,
1207: ait_val_t funcname, array_t * __restrict args)
1.1 misho 1208: {
1209: rpc_callback_t func;
1210:
1.10 misho 1211: if (!cli || !rpc || !AIT_ADDR(&funcname)) {
1.7 misho 1212: rpc_SetErr(EINVAL, "Invalid parameter can`t exec function");
1.1 misho 1213: return -1;
1214: }
1215:
1.10 misho 1216: func = AIT_GET_LIKE(&funcname, rpc_callback_t);
1217: return func(cli, rpc, args);
1.1 misho 1218: }
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