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> |
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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. |
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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 */ |
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#ifdef HAVE_SRANDOMDEV |
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srandomdev(); |
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#else |
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time_t tim; |
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srandom((time(&tim) ^ getpid())); |
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#endif |
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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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} |
} |
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/* |
/* |
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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 |
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rpc_cli_reconnectClient(rpc_cli_t * __restrict cli) |
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{ |
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int netBuf; |
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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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close(cli->cli_sock); |
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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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fcntl(cli->cli_sock, F_SETFL, fcntl(cli->cli_sock, F_GETFL) | O_NONBLOCK); |
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return 0; |
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} |
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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; |
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int ret; |
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u_char *buf; |
u_char *buf; |
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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); |
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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); | |
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return ret; | |
} |
} |
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/* |
/* |
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; | |
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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); |
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rpc = (struct tagRPCCall*) buf; |
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} |
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/* reply from RPC server */ |
/* reply from RPC server */ |
pfd.fd = sock; |
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pfd.events = POLLIN | POLLPRI; |
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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; |
} |
} |
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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; |
} |
} |
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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; | |
} | |
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/* 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; |
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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); | |
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/* calc estimated length */ |
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estlen = ait_resideVars(vars) + len; |
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if (estlen > AIT_LEN(pkt)) |
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AIT_RE_BUF(pkt, estlen); |
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buf = AIT_GET_BUF(pkt); |
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/* 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)); |
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/* 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); |
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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
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} |
} |
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/* total packet length */ |
/* total packet length */ |
rpc->call_len = htons(len); | rpc->call_len = htonl(len); |
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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
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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; |
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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; |
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if (!wlen) /* closed rpc connection */ |
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return 1; |
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if (noreply) /* we not want reply */ |
if (noreply) /* we not want reply */ |
return 0; |
return 0; |
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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; |
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if (!wlen) /* closed rpc connection */ |
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return 1; |
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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; |