version 1.13.4.3, 2013/01/17 17:01:51
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version 1.20.4.1, 2013/12/15 16:09:54
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Line 148 rpc_cli_closeBLOBClient(rpc_cli_t ** __restrict cli)
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Line 148 rpc_cli_closeBLOBClient(rpc_cli_t ** __restrict cli)
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/* |
/* |
* rpc_cli_openClient() - Connect to RPC Server |
* rpc_cli_openClient() - Connect to RPC Server |
* |
* |
* @ProgID = ProgramID for RPC session request | * @InstID = InstID for RPC session request |
* @ProcID = ProcessID for RPC session request | |
* @netBuf = Network buffer length (min:512 bytes), if =0 == BUFSIZ (also meaning max RPC packet) |
* @netBuf = Network buffer length (min:512 bytes), if =0 == BUFSIZ (also meaning max RPC packet) |
* @csHost = Host name or IP address for bind server |
* @csHost = Host name or IP address for bind server |
* @Port = Port for bind server, if Port == 0 default port is selected |
* @Port = Port for bind server, if Port == 0 default port is selected |
Line 157 rpc_cli_closeBLOBClient(rpc_cli_t ** __restrict cli)
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Line 156 rpc_cli_closeBLOBClient(rpc_cli_t ** __restrict cli)
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* return: NULL == error or !=NULL connection to RPC server established |
* return: NULL == error or !=NULL connection to RPC server established |
*/ |
*/ |
rpc_cli_t * |
rpc_cli_t * |
rpc_cli_openClient(u_int ProgID, u_char ProcID, int netBuf, const char *csHost, | rpc_cli_openClient(u_char InstID, int netBuf, const char *csHost, u_short Port, int proto) |
u_short Port, int proto) | |
{ |
{ |
rpc_cli_t *cli = NULL; |
rpc_cli_t *cli = NULL; |
sockaddr_t sa = E_SOCKADDR_INIT; |
sockaddr_t sa = E_SOCKADDR_INIT; |
Line 174 rpc_cli_openClient(u_int ProgID, u_char ProcID, int ne
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Line 172 rpc_cli_openClient(u_int ProgID, u_char ProcID, int ne
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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 197 rpc_cli_openClient(u_int ProgID, u_char ProcID, int ne
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Line 187 rpc_cli_openClient(u_int ProgID, u_char ProcID, int ne
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return NULL; |
return NULL; |
} else { |
} else { |
((rpc_sess_t*) cli->cli_parent)->sess_version = RPC_VERSION; |
((rpc_sess_t*) cli->cli_parent)->sess_version = RPC_VERSION; |
((rpc_sess_t*) cli->cli_parent)->sess_program = ProgID; | ((rpc_sess_t*) cli->cli_parent)->sess_instance = InstID; |
((rpc_sess_t*) cli->cli_parent)->sess_process = ProcID; | |
} |
} |
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cli->cli_id = proto; |
cli->cli_id = proto; |
Line 263 rpc_cli_closeClient(rpc_cli_t ** __restrict cli)
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Line 252 rpc_cli_closeClient(rpc_cli_t ** __restrict cli)
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*cli = NULL; |
*cli = NULL; |
} |
} |
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/* |
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* rpc_pkt_Send() - Send RPC packet |
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* |
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* @sock = Socket |
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* @type = Type of socket |
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* @sa = Server address |
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* @pkt = RPC packet |
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* @len = Length of packet |
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* return: -1 error, 0 EOF or >0 sended bytes |
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*/ |
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int |
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rpc_pkt_Send(int sock, int type, sockaddr_t * __restrict sa, ait_val_t * __restrict pkt, int len) |
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{ |
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u_char *buf; |
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if (!pkt) { |
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rpc_SetErr(EINVAL, "Invalid argument(s)!"); |
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return -1; |
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} else |
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buf = AIT_GET_BUF(pkt); |
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return rpc_Write(sock, type, MSG_NOSIGNAL, sa, buf, len); |
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} |
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/* |
/* |
* rpc_cli_execCall() - Execute RPC call | * rpc_pkt_Receive() - Receive RPC packet |
* |
* |
* @cli = RPC Client session | * @sock = Socket |
* @noreply = We not want RPC reply | * @type = Type of socket |
| * @sa = Server address |
| * @pkt = RPC packet |
| * return: -1 error, 0 EOF or >0 received bytes |
| */ |
| int |
| rpc_pkt_Receive(int sock, int type, sockaddr_t * __restrict sa, ait_val_t * __restrict pkt) |
| { |
| int ret, estlen = 0, blen = sizeof(struct tagRPCCall); |
| u_char *buf; |
| struct tagRPCCall *rpc; |
| |
| if (!pkt) { |
| rpc_SetErr(EINVAL, "Invalid argument(s)!"); |
| return -1; |
| } else { |
| buf = AIT_GET_BUF(pkt); |
| rpc = (struct tagRPCCall*) buf; |
| } |
| |
| /* reply from RPC server */ |
| do { |
| if (type == SOCK_STREAM) |
| ret = rpc_Read(sock, type, !estlen ? MSG_PEEK : 0, NULL, buf, blen); |
| else |
| ret = rpc_Read(sock, type, !estlen ? MSG_PEEK : 0, sa, buf, blen); |
| if (ret < 1) |
| return ret; |
| |
| /* check for response from known address */ |
| if (!estlen) { |
| /* 1st read for RPC header */ |
| if (ret < sizeof(struct tagRPCCall)) { |
| rpc_SetErr(ERPCMISMATCH, "Short RPC packet %d bytes", ret); |
| 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; |
| } |
| |
| /* compiler optimize loop if while(0) and stop working 'continue' on some platforms */ |
| break; |
| } while (42); |
| |
| if (ret < sizeof(struct tagRPCCall) || estlen != ret) { |
| rpc_SetErr(ERPCMISMATCH, "RPC packet mismatch estimate %d bytes, but received %d\n", |
| estlen, ret); |
| return -1; |
| } |
| |
| return ret; |
| } |
| |
| /* |
| * rpc_pkt_Request() - Build RPC Request packet |
| * |
| * @pkt = Packet buffer |
| * @sess = RPC session info |
* @tag = Function tag for execution |
* @tag = Function tag for execution |
* @in_vars = IN RPC call array of rpc values, may be NULL | * @vars = 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() | * @noreply = We not want RPC reply |
* return: -1 error or != -1 ok result | * @nocrc = Without CRC calculation |
| * return: -1 error or != -1 prepared bytes into packet |
*/ |
*/ |
int |
int |
rpc_cli_execCall(rpc_cli_t *cli, int noreply, u_short tag, | rpc_pkt_Request(ait_val_t * __restrict pkt, rpc_sess_t * __restrict sess, u_short tag, |
array_t * __restrict in_vars, array_t ** __restrict out_vars) | array_t * __restrict vars, int noreply, int nocrc) |
{ |
{ |
struct tagRPCCall *rpc; |
struct tagRPCCall *rpc; |
int ret = 0, wlen = sizeof(struct tagRPCCall); | int ret = 0, estlen, len = sizeof(struct tagRPCCall); |
uint16_t crc; | |
u_char *buf; |
u_char *buf; |
struct pollfd pfd; |
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sockaddr_t sa; |
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socklen_t salen; |
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if (!cli) { | if (!pkt || !sess) { |
rpc_SetErr(EINVAL, "Can`t execute call because parameter is null or invalid!"); | rpc_SetErr(EINVAL, "Invalid argument(s)!"); |
return -1; |
return -1; |
} else | } |
buf = AIT_GET_BUF(&cli->cli_buf); | |
if (out_vars) | |
*out_vars = NULL; | |
|
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memset(&sa, 0, sizeof sa); | /* calc estimated length */ |
| estlen = ait_resideVars(vars) + len; |
| if (estlen > AIT_LEN(pkt)) |
| AIT_RE_BUF(pkt, estlen); |
| 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, cli->cli_parent); | rpc_addPktSession(&rpc->call_session, sess); |
rpc->call_argc = htons(array_Size(in_vars)); | |
rpc->call_tag = htons(tag); |
rpc->call_tag = htons(tag); |
rpc->call_seq = htons(random() % USHRT_MAX); | if (!vars) |
| rpc->call_argc = 0; |
| else |
| 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(in_vars)) { | if (array_Size(vars)) { |
/* marshaling variables */ |
/* marshaling variables */ |
ret = ait_vars2buffer(buf + wlen, AIT_LEN(&cli->cli_buf) - wlen, in_vars); | ret = ait_vars2buffer(buf + len, AIT_LEN(pkt) - len, vars); |
if (ret == -1) { |
if (ret == -1) { |
rpc_SetErr(EBADRPC, "Failed to prepare RPC packet values"); |
rpc_SetErr(EBADRPC, "Failed to prepare RPC packet values"); |
return -1; |
return -1; |
} else |
} else |
wlen += ret; | len += ret; |
} |
} |
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/* total packet length */ |
/* total packet length */ |
rpc->call_len = htons(wlen); | rpc->call_len = htonl(len); |
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/* calculate CRC */ | if (!nocrc) { |
rpc->call_crc ^= rpc->call_crc; | /* calculate CRC */ |
rpc->call_crc = htons(crcFletcher16((u_short*) buf, wlen / 2)); | rpc->call_crc ^= rpc->call_crc; |
| rpc->call_crc = htons(crcFletcher16((u_short*) buf, len / 2)); |
pfd.fd = cli->cli_sock; | |
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 { |
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if (cli->cli_id == SOCK_STREAM) |
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ret = send(cli->cli_sock, buf, wlen, MSG_NOSIGNAL); |
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else |
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ret = sendto(cli->cli_sock, buf, wlen, MSG_NOSIGNAL, |
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&cli->cli_sa.sa, cli->cli_sa.sa.sa_len); |
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if (ret == -1) { |
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if (errno == EAGAIN) |
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continue; |
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LOGERR; |
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return -1; |
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} else if (ret != wlen) { |
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rpc_SetErr(EPROCUNAVAIL, "RPC request, should be send %d bytes, " |
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"really sended %d bytes", wlen, ret); |
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return -1; |
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} |
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} while (0); |
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if (noreply) /* we not want reply */ | return len; |
return 0; | } |
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wlen = 0; | /* |
/* reply from RPC server */ | * rpc_pkt_Replay() - Decode RPC Replay packet |
pfd.events = POLLIN | POLLPRI; | * |
do { | * @pkt = Packet buffer |
if ((ret = poll(&pfd, 1, DEF_RPC_TIMEOUT * 1000)) < 1 || | * @sess = RPC session info |
pfd.revents & (POLLERR | POLLHUP | POLLNVAL)) { | * @tag = Function tag |
if (ret) { | * @vars = Function argument array of values, may be NULL |
LOGERR; | * @nocrc = Without CRC calculation |
} else { | * return: -1 error or != -1 return value from function |
if (wlen++ < 7) | */ |
continue; | int |
else | rpc_pkt_Replay(ait_val_t * __restrict pkt, rpc_sess_t * __restrict sess, u_short tag, |
rpc_SetErr(ETIMEDOUT, "Timeout, no answer from RPC server"); | array_t ** __restrict vars, int nocrc) |
} | { |
| struct tagRPCCall *rpc; |
| int len; |
| u_char *buf; |
| uint16_t crc; |
|
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return -1; | if (!pkt || !sess) { |
} | rpc_SetErr(EINVAL, "Invalid argument(s)!"); |
| return -1; |
| } else |
| buf = AIT_GET_BUF(pkt); |
|
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memset(buf, 0, AIT_LEN(&cli->cli_buf)); | rpc = (struct tagRPCCall*) buf; |
if (cli->cli_id == SOCK_STREAM) | if (!nocrc) { |
ret = recv(cli->cli_sock, buf, AIT_LEN(&cli->cli_buf), 0); | /* calculate CRC */ |
else { | crc = ntohs(rpc->call_crc); |
salen = sa.ss.ss_len = sizeof(sockaddr_t); | rpc->call_crc ^= rpc->call_crc; |
ret = recvfrom(cli->cli_sock, buf, AIT_LEN(&cli->cli_buf), 0, | if (crc != crcFletcher16((u_short*) buf, ntohl(rpc->call_len) / 2)) { |
&sa.sa, &salen); | rpc_SetErr(ERPCMISMATCH, "Bad CRC RPC packet"); |
} | |
if (ret < 1) { | |
if (ret) { | |
if (errno == EAGAIN) | |
continue; | |
else | |
LOGERR; | |
} | |
return -1; |
return -1; |
} |
} |
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if (cli->cli_id == SOCK_DGRAM) { |
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/* check for response from known address */ |
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if (e_addrcmp(&cli->cli_sa, &sa, 42)) { |
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rpc_SetErr(ERPCMISMATCH, "Received RPC response from unknown address"); |
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continue; |
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} |
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} |
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} while (0); |
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if (ret < sizeof(struct tagRPCCall)) { |
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rpc_SetErr(ERPCMISMATCH, "Short RPC packet %d bytes", ret); |
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return -1; |
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} |
} |
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/* calculate CRC */ |
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crc = ntohs(rpc->call_crc); |
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rpc->call_crc ^= rpc->call_crc; |
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if (crc != crcFletcher16((u_short*) buf, ntohs(rpc->call_len) / 2)) { |
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rpc_SetErr(ERPCMISMATCH, "Bad CRC RPC packet"); |
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return -1; |
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} |
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/* check RPC packet session info */ |
/* check RPC packet session info */ |
if (rpc_chkPktSession(&rpc->call_session, cli->cli_parent)) { | if (rpc_chkPktSession(&rpc->call_session, sess)) { |
rpc_SetErr(ERPCMISMATCH, "Get invalid RPC session"); |
rpc_SetErr(ERPCMISMATCH, "Get invalid RPC session"); |
return -1; |
return -1; |
} else | } |
wlen = sizeof(struct tagRPCCall); | |
if (ntohs(rpc->call_tag) != tag) { |
if (ntohs(rpc->call_tag) != tag) { |
rpc_SetErr(ERPCMISMATCH, "Get wrong RPC reply"); |
rpc_SetErr(ERPCMISMATCH, "Get wrong RPC reply"); |
return -1; |
return -1; |
Line 427 rpc_cli_execCall(rpc_cli_t *cli, int noreply, u_short
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Line 455 rpc_cli_execCall(rpc_cli_t *cli, int noreply, u_short
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strerror(ntohl(rpc->call_rep.eno))); |
strerror(ntohl(rpc->call_rep.eno))); |
return -1; |
return -1; |
} |
} |
if (ntohs(rpc->call_argc) * sizeof(ait_val_t) > AIT_LEN(&cli->cli_buf) - wlen) { | len = ntohs(rpc->call_argc) * sizeof(ait_val_t); |
rpc_SetErr(EMSGSIZE, "Reply RPC packet is too long ..."); | if (len > AIT_LEN(pkt) - sizeof(struct tagRPCCall)) { |
| rpc_SetErr(EMSGSIZE, "Reply RPC packet not enough buffer space ..."); |
return -1; |
return -1; |
} |
} |
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if (len > ntohl(rpc->call_len) - sizeof(struct tagRPCCall)) { |
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rpc_SetErr(EMSGSIZE, "Reply RPC packet is too short ..."); |
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return -1; |
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} |
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/* RPC is OK! Go de-marshaling variables ... */ |
/* RPC is OK! Go de-marshaling variables ... */ |
if (out_vars && ntohs(rpc->call_argc)) { | if (vars && ntohs(rpc->call_argc)) { |
#ifdef CLI_RES_ZCOPY |
#ifdef CLI_RES_ZCOPY |
*out_vars = ait_buffer2vars(buf + wlen, AIT_LEN(&cli->cli_buf) - wlen, | *vars = ait_buffer2vars(buf + sizeof(struct tagRPCCall), len, |
ntohs(rpc->call_argc), 42); |
ntohs(rpc->call_argc), 42); |
#else |
#else |
*out_vars = ait_buffer2vars(buf + wlen, AIT_LEN(&cli->cli_buf) - wlen, | *vars = ait_buffer2vars(buf + sizeof(struct tagRPCCall), len, |
ntohs(rpc->call_argc), 0); |
ntohs(rpc->call_argc), 0); |
#endif |
#endif |
if (!*out_vars) { | if (!*vars) { |
rpc_SetErr(elwix_GetErrno(), "%s", elwix_GetError()); |
rpc_SetErr(elwix_GetErrno(), "%s", elwix_GetError()); |
return -1; |
return -1; |
} |
} |
} |
} |
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ret = ntohl(rpc->call_rep.ret); | return ntohl(rpc->call_rep.ret); |
return ret; | |
} |
} |
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/* |
/* |
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* rpc_cli_execCall() - Execute RPC call |
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* |
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* @cli = RPC Client session |
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* @noreply = We not want RPC reply |
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* @tag = Function tag for execution |
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* @in_vars = IN function argument array of values, may be NULL |
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* @out_vars = OUT returned array of rpc values, if !=NULL must be free after use with ait_freeVars() |
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* return: -1 error, 0 ok result or 1 closed rpc connection |
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*/ |
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int |
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rpc_cli_execCall(rpc_cli_t *cli, int noreply, u_short tag, |
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array_t * __restrict in_vars, array_t ** __restrict out_vars) |
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{ |
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int type = 0, wlen; |
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u_char *buf; |
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if (!cli) { |
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rpc_SetErr(EINVAL, "Can`t execute call because parameter is null or invalid!"); |
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return -1; |
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} else { |
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if (cli->cli_id == SOCK_STREAM) |
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type = cli->cli_id; |
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buf = AIT_GET_BUF(&cli->cli_buf); |
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} |
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if (out_vars) |
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*out_vars = NULL; |
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if ((wlen = rpc_pkt_Request(&cli->cli_buf, cli->cli_parent, tag, in_vars, noreply, type)) == -1) |
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return -1; |
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if ((wlen = rpc_pkt_Send(cli->cli_sock, cli->cli_id, &cli->cli_sa, &cli->cli_buf, wlen)) == -1) |
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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 */ |
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return 0; |
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if ((wlen = rpc_pkt_Receive(cli->cli_sock, cli->cli_id, &cli->cli_sa, &cli->cli_buf)) == -1) |
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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) |
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return -1; |
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return 0; |
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} |
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/* |
* rpc_cli_freeCall() - Free resouce allocated by RPC call |
* rpc_cli_freeCall() - Free resouce allocated by RPC call |
* |
* |
* @out_vars = Returned array with variables from RPC call |
* @out_vars = Returned array with variables from RPC call |
* return: none |
* return: none |
*/ |
*/ |
inline void | void |
rpc_cli_freeCall(array_t ** __restrict out_vars) |
rpc_cli_freeCall(array_t ** __restrict out_vars) |
{ |
{ |
#ifdef CLI_RES_ZCOPY |
#ifdef CLI_RES_ZCOPY |
Line 473 rpc_cli_freeCall(array_t ** __restrict out_vars)
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Line 555 rpc_cli_freeCall(array_t ** __restrict out_vars)
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* @cli = connected client |
* @cli = connected client |
* return: -1 error or !=-1 ping seq id |
* return: -1 error or !=-1 ping seq id |
*/ |
*/ |
inline int | int |
rpc_cli_ping(rpc_cli_t *cli) |
rpc_cli_ping(rpc_cli_t *cli) |
{ |
{ |
int ret = 0; |
int ret = 0; |