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rpccall.c
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rpccall.c
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#include "rpccall.h"
#include "rpcpack.h"
#include <stddef.h>
#include <stdio.h>
#include "rpctypes.h"
#include "tqueque/tqueque.h"
#include <string.h>
#include "lb_endian.h"
#include <stdint.h>
#include <stdlib.h>
#include <assert.h>
int is_rpctypes_equal(enum rpctypes* serv, size_t servlen, enum rpctypes* client, uint8_t clientlen){
if(!serv && !client) return 1;
struct tqueque* check_que = tqueque_create();
assert(check_que);
size_t newservlen = 0;
for(size_t i = 0; i < servlen;i++){
if(serv[i] != INTERFUNC && serv[i] != PSTORAGE && serv[i] != UNIQSTR){
assert(tqueque_push(check_que,&serv[i],sizeof(enum rpctypes),NULL) == 0);
if(serv[i] == SIZEDBUF) i++;
newservlen++;
}
}
if((serv && !client) || (!serv && client)) {
if(clientlen == 0 && newservlen == 0){
tqueque_free(check_que);
return 1;
}
tqueque_free(check_que);
return 0;
}
if(newservlen != clientlen) {tqueque_free(check_que);return 0;}
enum rpctypes* newserv = calloc(newservlen,sizeof(enum rpctypes));
assert(newserv);
for(size_t i = 0; i < newservlen; i++){
newserv[i] = *(enum rpctypes*)tqueque_pop(check_que,NULL,NULL);
}
int ret = 1;
for(size_t i = 0; i < clientlen; i++)
if(newserv[i] != client[i]) {ret = 0;break;}
tqueque_free(check_que);
free(newserv);
return ret;
}
uint64_t rpctypes_get_buflen(struct rpctype* rpctypes,uint8_t rpctypes_len){
size_t len = sizeof(uint64_t) + sizeof(uint8_t) + 1;
if(rpctypes == NULL) return len;
for(uint8_t i = 0; i <rpctypes_len; i++){
len += type_buflen(&rpctypes[i]);
}
return len;
}
int rpctypes_to_buf(struct rpctype* rpctypes,uint8_t rpctypes_amm, char* out){
assert(out);
char* wr = out + sizeof(uint8_t) + sizeof(uint64_t);
uint64_t len = 0;
for(uint8_t i = 0; i < rpctypes_amm; i++){
int tmp = type_to_arr(wr,&rpctypes[i]);
wr += tmp;
len += tmp;
}
*out = rpctypes_amm;
out++;
len = cpu_to_be64(len);
memcpy(out,&len,sizeof(uint64_t));
return 0;
}
struct rpctype* buf_to_rpctypes(char* in,uint8_t* rpctypes_amm,uint64_t checklen){
if(checklen <= (sizeof(uint64_t) + sizeof(uint8_t))) return NULL;
assert(in);
uint8_t amm = *in;
in++;
if(amm == 0) return NULL;
uint64_t len = 0;
memcpy(&len,in,sizeof(uint64_t));
len = be64_to_cpu(len);
if(len >= checklen) return NULL;
in += sizeof(uint64_t);
struct rpctype* types = malloc(amm * sizeof(*types));
assert(types);
*rpctypes_amm = amm;
for(uint8_t i = 0; i < amm; i++){
arr_to_type(in,&types[i]);
in += type_buflen(&types[i]);
}
return types;
}
enum rpctypes* rpctypes_get_types(struct rpctype* rpctypes,uint8_t rpctypes_amm){
if(rpctypes == NULL) return NULL;
enum rpctypes* erpctypes = malloc(rpctypes_amm * sizeof(enum rpctypes));
for(uint8_t i = 0; i < rpctypes_amm; i++){
erpctypes[i] = rpctypes[i].type;
}
return erpctypes;
}
void rpctypes_free(struct rpctype* rpctypes, uint8_t rpctypes_amm){
if(rpctypes == NULL) return;
for(uint8_t i = 0; i <rpctypes_amm; i++) free(rpctypes[i].data);
free(rpctypes);
}
char* rpccall_to_buf(struct rpccall* rpccall, uint64_t* buflen){
assert(rpccall);
assert(rpccall->fn_name);
assert(buflen);
uint64_t argsbuflen = rpctypes_get_buflen(rpccall->args,rpccall->args_amm);
*buflen = (strlen(rpccall->fn_name) + 1) + argsbuflen + sizeof(uint64_t);
char* buf = malloc(*buflen);
assert(buf);
char* write = buf;
uint64_t be64_fulstrlen = cpu_to_be64(strlen(rpccall->fn_name) + 1);
memcpy(write, &be64_fulstrlen, sizeof(uint64_t));
write += sizeof(uint64_t);
memcpy(write,rpccall->fn_name,strlen(rpccall->fn_name) + 1);
write += strlen(rpccall->fn_name) + 1;
if(rpccall->args == NULL) *write = 0; else *write = 1;
write++;
rpctypes_to_buf(rpccall->args,rpccall->args_amm,write);
return buf;
}
int buf_to_rpccall(struct rpccall* rpccall,char* in,uint64_t checklen){
if(in == NULL) return 1;
if(checklen <= sizeof(uint64_t)) return 1;
checklen -= sizeof(uint64_t);
uint64_t be64_fulstrlen = 0;
memcpy(&be64_fulstrlen,in,sizeof(uint64_t));
if(be64_to_cpu(be64_fulstrlen) >= checklen) return 1;
checklen -= be64_to_cpu(be64_fulstrlen);
rpccall->fn_name = malloc(be64_to_cpu(be64_fulstrlen));
assert(rpccall->fn_name);
in += sizeof(uint64_t);
memcpy(rpccall->fn_name,in,be64_to_cpu(be64_fulstrlen));
in += be64_to_cpu(be64_fulstrlen);
if(*in == 1) {
in++;
rpccall->args = buf_to_rpctypes(in,&rpccall->args_amm,checklen);
if(rpccall->args == NULL) return 1;
}
return 0;
}
struct rpctype* rpctypes_clean_nonres_args(struct rpctype* rpctypes, uint8_t rpctypes_len,uint8_t* retargsamm_out){
struct rpctype* resargs = NULL;
uint8_t resargs_len = 0;
for(uint8_t i = 0; i < rpctypes_len; i++){
if(rpctypes[i].flag == 1) resargs_len++;
}
if(resargs_len > 0){
resargs = malloc(resargs_len * sizeof(*resargs));
assert(resargs);
}
*retargsamm_out = resargs_len;
struct tqueque* tque = tqueque_create();
assert(tque);
uint8_t res_i = 0;
for(uint8_t i = 0; i < rpctypes_len; i++){
if(res_i < resargs_len) {
if(rpctypes[i].flag == 1){
resargs[res_i] = rpctypes[i];
res_i++;
}else tqueque_push(tque,&rpctypes[i],1,NULL);
}else tqueque_push(tque,&rpctypes[i],1,NULL);
}
struct rpctype* nonres = NULL;
while((nonres = tqueque_pop(tque,NULL,NULL)) != NULL){
free(nonres->data);
}
tqueque_free(tque);
free(rpctypes);
return resargs;
}
char* rpcret_to_buf(struct rpcret* rpcret, uint64_t* buflen){
assert(rpcret);
assert(buflen);
*buflen = rpctypes_get_buflen(rpcret->resargs,rpcret->resargs_amm) + type_buflen(&rpcret->ret) + sizeof(uint64_t) + 5;
char* buf = calloc(*buflen,sizeof(char));
char* ret = buf;
assert(buf);
uint64_t be64_buflen = cpu_to_be64(*buflen - sizeof(uint64_t));
memcpy(buf,&be64_buflen,sizeof(uint64_t));
buf += sizeof(uint64_t);
if(rpcret->ret.type != VOID){*buf = 1; buf++; buf += type_to_arr(buf,&rpcret->ret);}
buf++;
if(rpcret->resargs){*buf = 1; buf++; rpctypes_to_buf(rpcret->resargs,rpcret->resargs_amm,buf);}
return ret;
}
int buf_to_rpcret(struct rpcret* ret,char* in,uint64_t checklen){
ret->ret.data = NULL; ret->ret.datalen = 0;
ret->ret.flag = 0; ret->ret.type = VOID;
if(checklen <= sizeof(uint64_t)) return 1;
uint64_t len = 0;
memcpy(&len,in,sizeof(uint64_t));
len = be64_to_cpu(len);
if(checklen <= len) return 2;
in += sizeof(uint64_t);
if(*in == 1) {in++;arr_to_type(in,&ret->ret);in += type_buflen(&ret->ret);}
in++;
if(*in == 1) {
in++;
ret->resargs = buf_to_rpctypes(in,&ret->resargs_amm,checklen);
if(ret->resargs == NULL) return 3;
in++;
}
return 0;
}