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version 1.16.8.1, 2013/08/21 22:34:18
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version 1.21.2.1, 2014/01/28 14:04:57
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Line 12 terms:
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Line 12 terms:
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| All of the documentation and software included in the ELWIX and AITNET |
All of the documentation and software included in the ELWIX and AITNET |
| Releases is copyrighted by ELWIX - Sofia/Bulgaria <info@elwix.org> |
Releases is copyrighted by ELWIX - Sofia/Bulgaria <info@elwix.org> |
| |
|
| Copyright 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 | Copyright 2004 - 2014 |
| by Michael Pounov <misho@elwix.org>. All rights reserved. |
by Michael Pounov <misho@elwix.org>. All rights reserved. |
| |
|
| Redistribution and use in source and binary forms, with or without |
Redistribution and use in source and binary forms, with or without |
|
Line 172 rpc_cli_openClient(u_char InstID, int netBuf, const ch
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Line 172 rpc_cli_openClient(u_char InstID, int netBuf, const ch
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| else |
else |
| netBuf = E_ALIGN(netBuf, 2); /* align netBuf length */ |
netBuf = E_ALIGN(netBuf, 2); /* align netBuf length */ |
| |
|
| #ifdef HAVE_SRANDOMDEV |
|
| srandomdev(); |
|
| #else |
|
| time_t tim; |
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| |
|
| srandom((time(&tim) ^ getpid())); |
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| #endif |
|
| |
|
| cli = e_malloc(sizeof(rpc_cli_t)); |
cli = e_malloc(sizeof(rpc_cli_t)); |
| if (!cli) { |
if (!cli) { |
| LOGERR; |
LOGERR; |
|
Line 236 err:
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Line 228 err:
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| } |
} |
| |
|
| /* |
/* |
| |
* rpc_cli_reconnectClient() - Reconnecting client to RPC server |
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* |
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* @cli = RPC Client session |
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* return: -1 error or 0 ok |
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*/ |
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int |
| |
rpc_cli_reconnectClient(rpc_cli_t * __restrict cli) |
| |
{ |
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int netBuf; |
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|
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if (!cli) |
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return -1; |
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else |
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netBuf = AIT_LEN(&cli->cli_buf); |
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|
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close(cli->cli_sock); |
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|
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cli->cli_sock = socket(cli->cli_sa.sa.sa_family, cli->cli_id, 0); |
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if (cli->cli_sock == -1) { |
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LOGERR; |
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return -1; |
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} |
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if (setsockopt(cli->cli_sock, SOL_SOCKET, SO_SNDBUF, |
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&netBuf, sizeof netBuf) == -1) { |
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LOGERR; |
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close(cli->cli_sock); |
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return -1; |
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} |
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if (setsockopt(cli->cli_sock, SOL_SOCKET, SO_RCVBUF, |
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&netBuf, sizeof netBuf) == -1) { |
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LOGERR; |
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close(cli->cli_sock); |
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return -1; |
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} |
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if (cli->cli_id == SOCK_STREAM) |
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if (connect(cli->cli_sock, &cli->cli_sa.sa, cli->cli_sa.sa.sa_len) == -1) { |
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LOGERR; |
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close(cli->cli_sock); |
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return -1; |
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} |
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|
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fcntl(cli->cli_sock, F_SETFL, fcntl(cli->cli_sock, F_GETFL) | O_NONBLOCK); |
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return 0; |
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} |
| |
|
| |
/* |
| * rpc_cli_closeClient() - Close connection to RPC server and free resources |
* rpc_cli_closeClient() - Close connection to RPC server and free resources |
| * |
* |
| * @cli = RPC Client session |
* @cli = RPC Client session |
|
Line 268 rpc_cli_closeClient(rpc_cli_t ** __restrict cli)
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Line 306 rpc_cli_closeClient(rpc_cli_t ** __restrict cli)
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| * @sa = Server address |
* @sa = Server address |
| * @pkt = RPC packet |
* @pkt = RPC packet |
| * @len = Length of packet |
* @len = Length of packet |
| * return: -1 error or !=-1 sended bytes | * return: -1 error, 0 EOF or >0 sended bytes |
| */ |
*/ |
| int |
int |
| rpc_pkt_Send(int sock, int type, sockaddr_t * __restrict sa, ait_val_t * __restrict pkt, int len) |
rpc_pkt_Send(int sock, int type, sockaddr_t * __restrict sa, ait_val_t * __restrict pkt, int len) |
| { |
{ |
| struct pollfd pfd; |
|
| int ret; |
|
| u_char *buf; |
u_char *buf; |
| |
|
| if (!pkt) { |
if (!pkt) { |
|
Line 283 rpc_pkt_Send(int sock, int type, sockaddr_t * __restri
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Line 319 rpc_pkt_Send(int sock, int type, sockaddr_t * __restri
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| } else |
} else |
| buf = AIT_GET_BUF(pkt); |
buf = AIT_GET_BUF(pkt); |
| |
|
| pfd.fd = sock; | return rpc_Write(sock, type, MSG_NOSIGNAL, sa, buf, len); |
| pfd.events = POLLOUT; | |
| if ((ret = poll(&pfd, 1, DEF_RPC_TIMEOUT * 1000)) < 1 || | |
| pfd.revents & (POLLERR | POLLHUP | POLLNVAL)) { | |
| if (ret) | |
| LOGERR; | |
| else | |
| rpc_SetErr(ETIMEDOUT, "Timeout, can't send to RPC server"); | |
| return -1; | |
| } | |
| do { | |
| if (type == SOCK_STREAM) | |
| ret = send(sock, buf, len, MSG_NOSIGNAL); | |
| else if (sa) | |
| ret = sendto(sock, buf, len, MSG_NOSIGNAL, &sa->sa, sa->sa.sa_len); | |
| else { | |
| rpc_SetErr(EINVAL, "Invalid argument(s)!"); | |
| return -1; | |
| } | |
| if (ret == -1) { | |
| if (errno == EAGAIN) | |
| continue; | |
| LOGERR; | |
| return -1; | |
| } else if (ret != len) { | |
| rpc_SetErr(EPROCUNAVAIL, "RPC request, should be send %d bytes, " | |
| "really sended %d bytes", len, ret); | |
| return -1; | |
| } | |
| } while (0); | |
| |
| return ret; | |
| } |
} |
| |
|
| /* |
/* |
|
Line 324 rpc_pkt_Send(int sock, int type, sockaddr_t * __restri
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Line 329 rpc_pkt_Send(int sock, int type, sockaddr_t * __restri
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| * @type = Type of socket |
* @type = Type of socket |
| * @sa = Server address |
* @sa = Server address |
| * @pkt = RPC packet |
* @pkt = RPC packet |
| * return: -1 error or !=-1 sended bytes | * return: -1 error, 0 EOF or >0 received bytes |
| */ |
*/ |
| int |
int |
| rpc_pkt_Receive(int sock, int type, sockaddr_t * __restrict sa, ait_val_t * __restrict pkt) |
rpc_pkt_Receive(int sock, int type, sockaddr_t * __restrict sa, ait_val_t * __restrict pkt) |
| { |
{ |
| struct pollfd pfd; | int ret, estlen = 0, blen = sizeof(struct tagRPCCall); |
| int ret, len = 0; | |
| u_char *buf; |
u_char *buf; |
| sockaddr_t sa2; | struct tagRPCCall *rpc; |
| socklen_t salen; | |
| |
|
| if (!pkt) { |
if (!pkt) { |
| rpc_SetErr(EINVAL, "Invalid argument(s)!"); |
rpc_SetErr(EINVAL, "Invalid argument(s)!"); |
| return -1; |
return -1; |
| } else | } else { |
| buf = AIT_GET_BUF(pkt); |
buf = AIT_GET_BUF(pkt); |
| |
rpc = (struct tagRPCCall*) buf; |
| |
} |
| |
|
| /* reply from RPC server */ |
/* reply from RPC server */ |
| pfd.fd = sock; |
|
| pfd.events = POLLIN | POLLPRI; |
|
| do { |
do { |
| if ((ret = poll(&pfd, 1, DEF_RPC_TIMEOUT * 1000)) < 1 || | if (type == SOCK_STREAM) |
| pfd.revents & (POLLERR | POLLHUP | POLLNVAL)) { | ret = rpc_Read(sock, type, !estlen ? MSG_PEEK : 0, NULL, buf, blen); |
| if (ret) { | else |
| LOGERR; | ret = rpc_Read(sock, type, !estlen ? MSG_PEEK : 0, sa, buf, blen); |
| } else { | if (ret < 1) |
| if (len++ < 7) | return ret; |
| continue; | |
| else | /* check for response from known address */ |
| rpc_SetErr(ETIMEDOUT, | if (!estlen) { |
| "Timeout, no answer from RPC server"); | /* 1st read for RPC header */ |
| | if (ret < sizeof(struct tagRPCCall)) { |
| | rpc_SetErr(ERPCMISMATCH, "Short RPC packet %d bytes", ret); |
| | return -1; |
| } |
} |
| |
|
| return -1; | /* calc estimated length */ |
| | estlen = ntohl(rpc->call_len); |
| | if (estlen > AIT_LEN(pkt)) |
| | AIT_RE_BUF(pkt, estlen); |
| | buf = AIT_GET_BUF(pkt); |
| | rpc = (struct tagRPCCall*) buf; |
| | blen = estlen; |
| | continue; |
| } |
} |
| |
|
| memset(buf, 0, AIT_LEN(pkt)); | /* compiler optimize loop if while(0) and stop working 'continue' on some platforms */ |
| if (type == SOCK_STREAM) | break; |
| ret = recv(sock, buf, AIT_LEN(pkt), 0); | } while (42); |
| else { | |
| memset(&sa2, 0, sizeof sa2); | |
| salen = sa2.ss.ss_len = sizeof(sockaddr_t); | |
| ret = recvfrom(sock, buf, AIT_LEN(pkt), 0, &sa2.sa, &salen); | |
| } | |
| if (ret < 1) { | |
| if (ret) { | |
| if (errno == EAGAIN) | |
| continue; | |
| else | |
| LOGERR; | |
| } | |
| return -1; | |
| } | |
| |
|
| /* check for response from known address */ | if (ret < sizeof(struct tagRPCCall) || estlen != ret) { |
| if (type == SOCK_DGRAM) | rpc_SetErr(ERPCMISMATCH, "RPC packet mismatch estimate %d bytes, but received %d\n", |
| if (e_addrcmp(sa, &sa2, 42)) { | estlen, ret); |
| rpc_SetErr(ERPCMISMATCH, | |
| "Received RPC response from unknown address"); | |
| continue; | |
| } | |
| } while (0); | |
| if (ret < sizeof(struct tagRPCCall)) { | |
| rpc_SetErr(ERPCMISMATCH, "Short RPC packet %d bytes", ret); | |
| return -1; |
return -1; |
| } |
} |
| |
|
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Line 410 rpc_pkt_Request(ait_val_t * __restrict pkt, rpc_sess_t
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Line 402 rpc_pkt_Request(ait_val_t * __restrict pkt, rpc_sess_t
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| array_t * __restrict vars, int noreply, int nocrc) |
array_t * __restrict vars, int noreply, int nocrc) |
| { |
{ |
| struct tagRPCCall *rpc; |
struct tagRPCCall *rpc; |
| int ret = 0, len = sizeof(struct tagRPCCall); | int ret = 0, estlen, len = sizeof(struct tagRPCCall); |
| u_char *buf; |
u_char *buf; |
| |
|
| if (!pkt || !sess) { |
if (!pkt || !sess) { |
| rpc_SetErr(EINVAL, "Invalid argument(s)!"); |
rpc_SetErr(EINVAL, "Invalid argument(s)!"); |
| return -1; |
return -1; |
| } else | } |
| buf = AIT_GET_BUF(pkt); | |
| |
|
| |
/* calc estimated length */ |
| |
estlen = ait_resideVars(vars) + len; |
| |
if (estlen > AIT_LEN(pkt)) |
| |
AIT_RE_BUF(pkt, estlen); |
| |
buf = AIT_GET_BUF(pkt); |
| |
|
| /* prepare RPC call */ |
/* prepare RPC call */ |
| rpc = (struct tagRPCCall*) buf; |
rpc = (struct tagRPCCall*) buf; |
| rpc_addPktSession(&rpc->call_session, sess); |
rpc_addPktSession(&rpc->call_session, sess); |
|
Line 429 rpc_pkt_Request(ait_val_t * __restrict pkt, rpc_sess_t
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Line 426 rpc_pkt_Request(ait_val_t * __restrict pkt, rpc_sess_t
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| rpc->call_argc = htons(array_Size(vars)); |
rpc->call_argc = htons(array_Size(vars)); |
| |
|
| /* set reply */ |
/* set reply */ |
| rpc->call_req.flags = noreply ? RPC_NOREPLY : RPC_REPLY; | rpc->call_req.flags = (uint64_t) htonl(noreply ? RPC_NOREPLY : RPC_REPLY); |
| |
|
| if (array_Size(vars)) { |
if (array_Size(vars)) { |
| /* marshaling variables */ |
/* marshaling variables */ |
|
Line 442 rpc_pkt_Request(ait_val_t * __restrict pkt, rpc_sess_t
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Line 439 rpc_pkt_Request(ait_val_t * __restrict pkt, rpc_sess_t
|
| } |
} |
| |
|
| /* total packet length */ |
/* total packet length */ |
| rpc->call_len = htons(len); | rpc->call_len = htonl(len); |
| |
|
| if (!nocrc) { |
if (!nocrc) { |
| /* calculate CRC */ |
/* calculate CRC */ |
|
Line 483 rpc_pkt_Replay(ait_val_t * __restrict pkt, rpc_sess_t
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Line 480 rpc_pkt_Replay(ait_val_t * __restrict pkt, rpc_sess_t
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| /* calculate CRC */ |
/* calculate CRC */ |
| crc = ntohs(rpc->call_crc); |
crc = ntohs(rpc->call_crc); |
| rpc->call_crc ^= rpc->call_crc; |
rpc->call_crc ^= rpc->call_crc; |
| if (crc != crcFletcher16((u_short*) buf, ntohs(rpc->call_len) / 2)) { | if (crc != crcFletcher16((u_short*) buf, ntohl(rpc->call_len) / 2)) { |
| rpc_SetErr(ERPCMISMATCH, "Bad CRC RPC packet"); |
rpc_SetErr(ERPCMISMATCH, "Bad CRC RPC packet"); |
| return -1; |
return -1; |
| } |
} |
|
Line 509 rpc_pkt_Replay(ait_val_t * __restrict pkt, rpc_sess_t
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Line 506 rpc_pkt_Replay(ait_val_t * __restrict pkt, rpc_sess_t
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| rpc_SetErr(EMSGSIZE, "Reply RPC packet not enough buffer space ..."); |
rpc_SetErr(EMSGSIZE, "Reply RPC packet not enough buffer space ..."); |
| return -1; |
return -1; |
| } |
} |
| if (len > ntohs(rpc->call_len) - sizeof(struct tagRPCCall)) { | if (len > ntohl(rpc->call_len) - sizeof(struct tagRPCCall)) { |
| rpc_SetErr(EMSGSIZE, "Reply RPC packet is too short ..."); |
rpc_SetErr(EMSGSIZE, "Reply RPC packet is too short ..."); |
| return -1; |
return -1; |
| } |
} |
|
Line 540 rpc_pkt_Replay(ait_val_t * __restrict pkt, rpc_sess_t
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Line 537 rpc_pkt_Replay(ait_val_t * __restrict pkt, rpc_sess_t
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| * @tag = Function tag for execution |
* @tag = Function tag for execution |
| * @in_vars = IN function argument array of values, may be NULL |
* @in_vars = IN function argument array of values, may be NULL |
| * @out_vars = OUT returned array of rpc values, if !=NULL must be free after use with ait_freeVars() |
* @out_vars = OUT returned array of rpc values, if !=NULL must be free after use with ait_freeVars() |
| * return: -1 error or != -1 ok result | * return: -1 error, 0 ok result or 1 closed rpc connection |
| */ |
*/ |
| int |
int |
| rpc_cli_execCall(rpc_cli_t *cli, int noreply, u_short tag, |
rpc_cli_execCall(rpc_cli_t *cli, int noreply, u_short tag, |
|
Line 563 rpc_cli_execCall(rpc_cli_t *cli, int noreply, u_short
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Line 560 rpc_cli_execCall(rpc_cli_t *cli, int noreply, u_short
|
| if ((wlen = rpc_pkt_Request(&cli->cli_buf, cli->cli_parent, tag, in_vars, noreply, type)) == -1) |
if ((wlen = rpc_pkt_Request(&cli->cli_buf, cli->cli_parent, tag, in_vars, noreply, type)) == -1) |
| return -1; |
return -1; |
| |
|
| if (rpc_pkt_Send(cli->cli_sock, cli->cli_id, &cli->cli_sa, &cli->cli_buf, wlen) == -1) | if ((wlen = rpc_pkt_Send(cli->cli_sock, cli->cli_id, &cli->cli_sa, &cli->cli_buf, wlen)) == -1) |
| return -1; |
return -1; |
| |
if (!wlen) /* closed rpc connection */ |
| |
return 1; |
| |
|
| if (noreply) /* we not want reply */ |
if (noreply) /* we not want reply */ |
| return 0; |
return 0; |
| |
|
| if (rpc_pkt_Receive(cli->cli_sock, cli->cli_id, &cli->cli_sa, &cli->cli_buf) == -1) | if ((wlen = rpc_pkt_Receive(cli->cli_sock, cli->cli_id, &cli->cli_sa, &cli->cli_buf)) == -1) |
| return -1; |
return -1; |
| |
if (!wlen) /* closed rpc connection */ |
| |
return 1; |
| |
|
| if ((wlen = rpc_pkt_Replay(&cli->cli_buf, cli->cli_parent, tag, out_vars, type)) == -1) |
if ((wlen = rpc_pkt_Replay(&cli->cli_buf, cli->cli_parent, tag, out_vars, type)) == -1) |
| return -1; |
return -1; |