version 1.1, 2010/06/23 11:34:48
|
version 1.2, 2011/05/02 23:12:08
|
Line 0
|
Line 1
|
|
/************************************************************************* |
|
* (C) 2010 AITNET ltd - Sofia/Bulgaria - <misho@aitbg.com> |
|
* by Michael Pounov <misho@openbsd-bg.org> |
|
* |
|
* $Author$ |
|
* $Id$ |
|
* |
|
************************************************************************** |
|
The ELWIX and AITNET software is distributed under the following |
|
terms: |
|
|
|
All of the documentation and software included in the ELWIX and AITNET |
|
Releases is copyrighted by ELWIX - Sofia/Bulgaria <info@elwix.org> |
|
|
|
Copyright 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 |
|
by Michael Pounov <misho@elwix.org>. All rights reserved. |
|
|
|
Redistribution and use in source and binary forms, with or without |
|
modification, are permitted provided that the following conditions |
|
are met: |
|
1. Redistributions of source code must retain the above copyright |
|
notice, this list of conditions and the following disclaimer. |
|
2. Redistributions in binary form must reproduce the above copyright |
|
notice, this list of conditions and the following disclaimer in the |
|
documentation and/or other materials provided with the distribution. |
|
3. All advertising materials mentioning features or use of this software |
|
must display the following acknowledgement: |
|
This product includes software developed by Michael Pounov <misho@elwix.org> |
|
ELWIX - Embedded LightWeight unIX and its contributors. |
|
4. Neither the name of AITNET nor the names of its contributors |
|
may be used to endorse or promote products derived from this software |
|
without specific prior written permission. |
|
|
|
THIS SOFTWARE IS PROVIDED BY AITNET AND CONTRIBUTORS ``AS IS'' AND |
|
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
|
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
|
ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
|
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
|
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
|
OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
|
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
|
LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
|
OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
|
SUCH DAMAGE. |
|
*/ |
|
#include "global.h" |
|
|
|
|
|
/* |
|
* rpc_srv_retValsCall() Declare return variables for RPC call and zeroed values |
|
(for safe handling return values, use this!) |
|
* @call = RPC function call |
|
* @return_vals = Number of return variables |
|
* return: NULL error, !=NULL array with return values for RPC call with return_vals items |
|
*/ |
|
inline rpc_val_t * |
|
rpc_srv_retValsCall(rpc_func_t * __restrict call, int return_vals) |
|
{ |
|
rpc_val_t *v = NULL; |
|
|
|
if (rpc_srv_declValsCall(call, return_vals) == -1) |
|
return NULL; |
|
else |
|
rpc_srv_zeroValsCall(call); |
|
if (rpc_srv_getValsCall(call, &v) == -1) |
|
return NULL; |
|
|
|
return v; |
|
} |
|
|
|
/* |
|
* rpc_srv_freeValsCall() Free return variables for RPC call |
|
* @call = RPC function call |
|
* return: none |
|
*/ |
|
inline void |
|
rpc_srv_freeValsCall(rpc_func_t * __restrict call) |
|
{ |
|
rpc_srv_declValsCall(call, 0); |
|
} |
|
|
|
/* |
|
* rpc_srv_declValsCall() Declare return variables for RPC call, |
|
if already allocated memory for RPC call return values |
|
function reallocate used space with return_vals count elements |
|
* @call = RPC function call |
|
* @return_vals = Number of return variables |
|
* return: -1 error, !=-1 ok |
|
*/ |
|
inline int |
|
rpc_srv_declValsCall(rpc_func_t * __restrict call, int return_vals) |
|
{ |
|
void *ptr; |
|
|
|
if (!call || return_vals < 0) { |
|
rpc_SetErr(EINVAL, "Error:: Invalid parameter can`t declare return variables for RPC call...\n"); |
|
return -1; |
|
} else |
|
call->func_args = return_vals; |
|
|
|
if (!return_vals) { |
|
if (call->func_vals) { |
|
free(call->func_vals); |
|
call->func_vals = NULL; |
|
} |
|
} else { |
|
ptr = realloc(call->func_vals, return_vals * sizeof(rpc_val_t)); |
|
if (!ptr) { |
|
LOGERR; |
|
call->func_args = 0; |
|
return -1; |
|
} else |
|
call->func_vals = ptr; |
|
} |
|
|
|
return return_vals; |
|
} |
|
|
|
/* |
|
* rpc_srv_zeroValsCall() Clean values from return variables of RPC call |
|
* @call = RPC function call |
|
* return: -1 error, !=-1 Returned number of cleaned RPC variables |
|
*/ |
|
inline int |
|
rpc_srv_zeroValsCall(rpc_func_t * __restrict call) |
|
{ |
|
if (!call) { |
|
rpc_SetErr(EINVAL, "Error:: Invalid parameter can`t delete return variables ...\n"); |
|
return -1; |
|
} |
|
|
|
memset(call->func_vals, 0, call->func_args * sizeof(rpc_val_t)); |
|
return call->func_args; |
|
} |
|
|
|
/* |
|
* rpc_srv_copyValsCall() Copy return variables for RPC call to new variable |
|
* @call = RPC function call |
|
* @newvals = New allocated variables array, must be free after use |
|
* return: -1 error, !=-1 Returned number of copied RPC variables |
|
*/ |
|
inline int |
|
rpc_srv_copyValsCall(rpc_func_t * __restrict call, rpc_val_t ** __restrict newvals) |
|
{ |
|
if (!call || !newvals) { |
|
rpc_SetErr(EINVAL, "Error:: Invalid parameter can`t copy return variables to new array\n"); |
|
return -1; |
|
} |
|
|
|
*newvals = calloc(call->func_args, sizeof(rpc_val_t)); |
|
if (!*newvals) { |
|
LOGERR; |
|
return -1; |
|
} else |
|
memcpy(*newvals, call->func_vals, call->func_args * sizeof(rpc_val_t)); |
|
|
|
return call->func_args; |
|
} |
|
|
|
/* |
|
* rpc_srv_getValsCall() Get return variables for RPC call |
|
* @call = RPC function call |
|
* @vals = Returned variables, may be NULL |
|
* return: -1 error, !=-1 Number of returned variables |
|
*/ |
|
inline int |
|
rpc_srv_getValsCall(rpc_func_t * __restrict call, rpc_val_t ** __restrict vals) |
|
{ |
|
if (!call) { |
|
rpc_SetErr(EINVAL, "Error:: Invalid parameter can`t get return variables ...\n"); |
|
return -1; |
|
} |
|
|
|
if (vals) |
|
*vals = call->func_vals; |
|
return call->func_args; |
|
} |
|
|
|
// --------------------------------------------------------- |
|
|
|
/* |
|
* rpc_srv_registerCall() Register call to RPC server |
|
* @srv = RPC Server instance |
|
* @csModule = Module name, if NULL self binary |
|
* @csFunc = Function name |
|
* @args = Number of return function arguments, use for restriction case! |
|
* return: -1 error or 0 register ok |
|
*/ |
|
int |
|
rpc_srv_registerCall(rpc_srv_t * __restrict srv, const char *csModule, const char *csFunc, u_char args) |
|
{ |
|
rpc_func_t *func; |
|
u_char str[MAXPATHLEN + UCHAR_MAX + 1]; |
|
|
|
memset(str, 0, MAXPATHLEN + UCHAR_MAX + 1); |
|
if (!srv || !csFunc) { |
|
rpc_SetErr(EINVAL, "Error:: Invalid parameter can`t register function to RPC server ...\n"); |
|
return -1; |
|
} |
|
if (!(func = malloc(sizeof(rpc_func_t)))) { |
|
LOGERR; |
|
return -1; |
|
} else { |
|
memset(func, 0, sizeof(rpc_func_t)); |
|
strlcpy((char*) func->func_name, csFunc, UCHAR_MAX + 1); |
|
} |
|
if (csModule) { |
|
strlcpy((char*) func->func_file, csModule, MAXPATHLEN); |
|
strlcpy((char*) str, csModule, MAXPATHLEN + UCHAR_MAX + 1); |
|
} |
|
strlcat((char*) str, "__", MAXPATHLEN + UCHAR_MAX + 1); |
|
strlcat((char*) str, csFunc, MAXPATHLEN + UCHAR_MAX + 1); |
|
|
|
func->func_tag = crcFletcher16((u_short*) str, (MAXPATHLEN + UCHAR_MAX + 1) / 2); |
|
func->func_hash = hash_fnv((char*) str, MAXPATHLEN + UCHAR_MAX + 1); |
|
|
|
func->func_parent = srv; |
|
|
|
if (args > 0 && rpc_srv_declValsCall(func, args) == -1) { |
|
free(func); |
|
return -1; |
|
} |
|
|
|
pthread_mutex_lock(&srv->srv_mtx); |
|
func->func_next = srv->srv_funcs; |
|
srv->srv_funcs = func; |
|
pthread_mutex_unlock(&srv->srv_mtx); |
|
return 0; |
|
} |
|
|
|
/* |
|
* rpc_srv_unregisterCall() Unregister call from RPC server |
|
* @srv = RPC Server instance |
|
* @csModule = Module name, if NULL self binary |
|
* @csFunc = Function name |
|
* return: -1 error, 0 not found call, 1 unregister ok |
|
*/ |
|
int |
|
rpc_srv_unregisterCall(rpc_srv_t * __restrict srv, const char *csModule, const char *csFunc) |
|
{ |
|
rpc_func_t func, *f, *curr; |
|
u_char str[MAXPATHLEN + UCHAR_MAX + 1]; |
|
|
|
memset(&func, 0, sizeof(rpc_func_t)); |
|
memset(str, 0, MAXPATHLEN + UCHAR_MAX + 1); |
|
if (!srv || !csFunc) { |
|
rpc_SetErr(EINVAL, "Error:: Invalid parameter can`t unregister function from RPC server ...\n"); |
|
return -1; |
|
} else |
|
strlcpy((char*) func.func_name, csFunc, UCHAR_MAX + 1); |
|
if (csModule) { |
|
strlcpy((char*) func.func_file, csModule, MAXPATHLEN); |
|
strlcpy((char*) str, csModule, MAXPATHLEN + UCHAR_MAX + 1); |
|
} |
|
strlcat((char*) str, "__", MAXPATHLEN + UCHAR_MAX + 1); |
|
strlcat((char*) str, csFunc, MAXPATHLEN + UCHAR_MAX + 1); |
|
|
|
func.func_tag = crcFletcher16((u_short*) str, (MAXPATHLEN + UCHAR_MAX + 1) / 2); |
|
func.func_hash = hash_fnv((char*) str, MAXPATHLEN + UCHAR_MAX + 1); |
|
|
|
f = rpc_srv_getCall(srv, func.func_tag, func.func_hash); |
|
if (!f) // not found element for unregister |
|
return 0; |
|
|
|
pthread_mutex_lock(&srv->srv_mtx); |
|
if (srv->srv_funcs == f) { // if is 1st element |
|
srv->srv_funcs = srv->srv_funcs->func_next; |
|
|
|
if (f->func_args && f->func_vals) |
|
free(f->func_vals); |
|
free(f); |
|
} else { |
|
for (curr = srv->srv_funcs; curr->func_next != f; curr = curr->func_next); |
|
curr->func_next = curr->func_next->func_next; |
|
|
|
if (f->func_args && f->func_vals) |
|
free(f->func_vals); |
|
free(f); |
|
} |
|
pthread_mutex_unlock(&srv->srv_mtx); |
|
|
|
return 1; |
|
} |
|
|
|
/* |
|
* rpc_srv_getCall() Get registered call from RPC server |
|
* @srv = RPC Server instance |
|
* @tag = tag for function |
|
* @hash = hash for function |
|
* return: NULL not found call, !=NULL return call |
|
*/ |
|
inline rpc_func_t * |
|
rpc_srv_getCall(rpc_srv_t * __restrict srv, uint16_t tag, uint32_t hash) |
|
{ |
|
rpc_func_t *f; |
|
|
|
if (!srv) { |
|
rpc_SetErr(EINVAL, "Error:: Invalid parameter can`t get function from RPC server ...\n"); |
|
return NULL; |
|
} |
|
|
|
for (f = srv->srv_funcs; f; f = f->func_next) |
|
if (f->func_tag == tag && f->func_hash == hash) |
|
break; |
|
|
|
return f; |
|
} |
|
|
|
/* |
|
* rpc_srv_getFunc() Get registered call from RPC server by Name |
|
* @srv = RPC Server instance |
|
* @csModule = Module name, if NULL self binary |
|
* @csFunc = Function name |
|
* return: NULL not found call, !=NULL return call |
|
*/ |
|
rpc_func_t * |
|
rpc_srv_getFunc(rpc_srv_t * __restrict srv, const char *csModule, const char *csFunc) |
|
{ |
|
rpc_func_t func; |
|
u_char str[MAXPATHLEN + UCHAR_MAX + 1]; |
|
|
|
memset(&func, 0, sizeof(rpc_func_t)); |
|
memset(str, 0, MAXPATHLEN + UCHAR_MAX + 1); |
|
if (!srv || !csFunc) { |
|
rpc_SetErr(EINVAL, "Error:: Invalid parameter can`t get function from RPC server ...\n"); |
|
return NULL; |
|
} else |
|
strlcpy((char*) func.func_name, csFunc, UCHAR_MAX + 1); |
|
if (csModule) { |
|
strlcpy((char*) func.func_file, csModule, MAXPATHLEN); |
|
strlcpy((char*) str, csModule, MAXPATHLEN + UCHAR_MAX + 1); |
|
} |
|
strlcat((char*) str, "__", MAXPATHLEN + UCHAR_MAX + 1); |
|
strlcat((char*) str, csFunc, MAXPATHLEN + UCHAR_MAX + 1); |
|
|
|
func.func_tag = crcFletcher16((u_short*) str, (MAXPATHLEN + UCHAR_MAX + 1) / 2); |
|
func.func_hash = hash_fnv((char*) str, MAXPATHLEN + UCHAR_MAX + 1); |
|
|
|
return rpc_srv_getCall(srv, func.func_tag, func.func_hash); |
|
} |
|
|
|
// --------------------------------------------------------- |
|
|
|
/* |
|
* rpc_srv_getBLOB() Get registered BLOB |
|
* @srv = RPC Server instance |
|
* @var = hash for variable |
|
* return: NULL not found, !=NULL return blob var |
|
*/ |
|
inline rpc_blob_t * |
|
rpc_srv_getBLOB(rpc_srv_t * __restrict srv, uint32_t var) |
|
{ |
|
rpc_blob_t *b; |
|
|
|
if (!srv) { |
|
rpc_SetErr(EINVAL, "Error:: Invalid parameter can`t get variable from BLOB server ...\n"); |
|
return NULL; |
|
} |
|
|
|
pthread_mutex_lock(&srv->srv_blob.mtx); |
|
for (b = srv->srv_blob.blobs; b; b = b->blob_next) { |
|
if (b->blob_var == var) |
|
break; |
|
} |
|
pthread_mutex_unlock(&srv->srv_blob.mtx); |
|
|
|
return b; |
|
} |
|
|
|
/* |
|
* rpc_srv_registerBLOB() Register new BLOB to server |
|
* @srv = RPC Server instance |
|
* @len = BLOB length |
|
* return: NULL error or new registered BLOB |
|
*/ |
|
rpc_blob_t * |
|
rpc_srv_registerBLOB(rpc_srv_t * __restrict srv, size_t len) |
|
{ |
|
rpc_blob_t *blob = NULL; |
|
|
|
if (!srv || !len) { |
|
rpc_SetErr(EINVAL, "Error:: Invalid parameter can`t register BLOB to server ...\n"); |
|
return blob; |
|
} |
|
|
|
blob = rpc_srv_blobCreate(srv, len); |
|
if (blob) { |
|
pthread_mutex_lock(&srv->srv_blob.mtx); |
|
blob->blob_next = srv->srv_blob.blobs; |
|
srv->srv_blob.blobs = blob; |
|
pthread_mutex_unlock(&srv->srv_blob.mtx); |
|
} |
|
|
|
return blob; |
|
} |
|
|
|
/* |
|
* rpc_srv_unregisterBLOB() Unregister BLOB from server |
|
* @srv = RPC Server instance |
|
* @var = BLOB Variable for unregister |
|
* return: -1 error, 0 not found call, 1 unregister ok |
|
*/ |
|
int |
|
rpc_srv_unregisterBLOB(rpc_srv_t * __restrict srv, uint32_t var) |
|
{ |
|
rpc_blob_t *b, *curr; |
|
|
|
if (!srv) { |
|
rpc_SetErr(EINVAL, "Error:: Invalid parameter can`t unregister BLOB from server ...\n"); |
|
return -1; |
|
} |
|
|
|
b = rpc_srv_getBLOB(srv, var); |
|
if (!b) // not found element for unregister |
|
return 0; |
|
|
|
pthread_mutex_lock(&srv->srv_blob.mtx); |
|
if (srv->srv_blob.blobs == b) { // if is 1st element |
|
srv->srv_blob.blobs = srv->srv_blob.blobs->blob_next; |
|
} else { |
|
for (curr = srv->srv_blob.blobs; curr->blob_next != b; curr = curr->blob_next); |
|
curr->blob_next = curr->blob_next->blob_next; |
|
} |
|
rpc_srv_blobFree(srv, b); |
|
free(b); |
|
pthread_mutex_unlock(&srv->srv_blob.mtx); |
|
|
|
return 1; |
|
} |