int jsonrpc_notification(struct sip_msg* _m, char* _method, char* _params)
{
str method;
str params;
if (fixup_get_svalue(_m, (gparam_p)_method, &method) != 0) {
LM_ERR("cannot get method value\n");
return -1;
}
if (fixup_get_svalue(_m, (gparam_p)_params, ¶ms) != 0) {
LM_ERR("cannot get params value\n");
return -1;
}
struct jsonrpc_pipe_cmd *cmd;
if (!(cmd = (struct jsonrpc_pipe_cmd *) shm_malloc(sizeof(struct jsonrpc_pipe_cmd))))
return memory_error();
memset(cmd, 0, sizeof(struct jsonrpc_pipe_cmd));
cmd->method = shm_strdup(&method);
cmd->params = shm_strdup(¶ms);
cmd->notify_only = 1;
if (write(cmd_pipe, &cmd, sizeof(cmd)) != sizeof(cmd)) {
LM_ERR("failed to write to io pipe: %s\n", strerror(errno));
return -1;
}
return 1;
}
static int xmpp_send_pipe_cmd(enum xmpp_pipe_cmd_type type, str *from, str *to,
str *body, str *id)
{
struct xmpp_pipe_cmd *cmd;
/* todo: make shm allocation for one big chunk to include all fields */
cmd = (struct xmpp_pipe_cmd *) shm_malloc(sizeof(struct xmpp_pipe_cmd));
memset(cmd, 0, sizeof(struct xmpp_pipe_cmd));
cmd->type = type;
cmd->from = shm_strdup(from);
cmd->to = shm_strdup(to);
cmd->body = shm_strdup(body);
cmd->id = shm_strdup(id);
if (write(pipe_fds[1], &cmd, sizeof(cmd)) != sizeof(cmd)) {
LM_ERR("failed to write to command pipe: %s\n", strerror(errno));
xmpp_free_pipe_cmd(cmd);
return -1;
}
return 0;
}
static int xmpp_send_pipe_cmd(enum xmpp_pipe_cmd_type type, str *from, str *to,
str *body, str *id)
{
struct xmpp_pipe_cmd *cmd;
/* todo: make shm allocation for one big chunk to include all fields */
cmd = (struct xmpp_pipe_cmd *) shm_malloc(sizeof(struct xmpp_pipe_cmd));
memset(cmd, 0, sizeof(struct xmpp_pipe_cmd));
cmd->type = type;
cmd->from = shm_strdup(from);
cmd->to = shm_strdup(to);
cmd->body = shm_strdup(body);
cmd->id = shm_strdup(id);
if(pid == *xmpp_pid) /* if attempting to send from the xmpp extra process */
{
LM_DBG("I am the XMPP extra process\n");
if(backend_mode == XMPP_COMP) {
struct xmpp_private_data priv;
priv.fd = curr_fd;
priv.running = 1;
xmpp_component_net_send(cmd, &priv);
}
else {
xmpp_server_net_send(cmd);
}
}
else
{
if (write(pipe_fds[1], &cmd, sizeof(cmd)) != sizeof(cmd)) {
LM_ERR("failed to write to command pipe: %s\n", strerror(errno));
xmpp_free_pipe_cmd(cmd);
return -1;
}
}
return 0;
}
int jsonrpc_request(struct sip_msg* _m, char* _method, char* _params, char* _cb_route, char* _err_route, char* _cb_pv)
{
str method;
str params;
str cb_route;
str err_route;
if (fixup_get_svalue(_m, (gparam_p)_method, &method) != 0) {
LM_ERR("cannot get method value\n");
return -1;
}
if (fixup_get_svalue(_m, (gparam_p)_params, ¶ms) != 0) {
LM_ERR("cannot get params value\n");
return -1;
}
if (fixup_get_svalue(_m, (gparam_p)_cb_route, &cb_route) != 0) {
LM_ERR("cannot get cb_route value\n");
return -1;
}
if (fixup_get_svalue(_m, (gparam_p)_err_route, &err_route) != 0) {
LM_ERR("cannot get err_route value\n");
return -1;
}
tm_cell_t *t = 0;
t = tmb.t_gett();
if (t==NULL || t==T_UNDEFINED)
{
if(tmb.t_newtran(_m)<0)
{
LM_ERR("cannot create the transaction\n");
return -1;
}
t = tmb.t_gett();
if (t==NULL || t==T_UNDEFINED)
{
LM_ERR("cannot look up the transaction\n");
return -1;
}
}
unsigned int hash_index;
unsigned int label;
if (tmb.t_suspend(_m, &hash_index, &label) < 0) {
LM_ERR("t_suspend() failed\n");
return -1;
}
struct jsonrpc_pipe_cmd *cmd;
if (!(cmd = (struct jsonrpc_pipe_cmd *) shm_malloc(sizeof(struct jsonrpc_pipe_cmd))))
return memory_error();
memset(cmd, 0, sizeof(struct jsonrpc_pipe_cmd));
pv_spec_t *cb_pv = (pv_spec_t*)shm_malloc(sizeof(pv_spec_t));
if (!cb_pv)
return memory_error();
cb_pv = memcpy(cb_pv, (pv_spec_t *)_cb_pv, sizeof(pv_spec_t));
cmd->method = shm_strdup(&method);
cmd->params = shm_strdup(¶ms);
cmd->cb_route = shm_strdup(&cb_route);
cmd->err_route = shm_strdup(&err_route);
cmd->cb_pv = cb_pv;
cmd->msg = _m;
cmd->t_hash = hash_index;
cmd->t_label = label;
if (write(cmd_pipe, &cmd, sizeof(cmd)) != sizeof(cmd)) {
LM_ERR("failed to write to io pipe: %s\n", strerror(errno));
return -1;
}
return 0;
}
int cmd_erlang_info(struct sip_msg* msg, char *cn, char *rp, char *ar) {
#define AVP_PRINTBUF_SIZE 1024
static char printbuf[AVP_PRINTBUF_SIZE];
int printbuf_len, bytessent;
ei_x_buff argbuf;
struct nodes_list* node;
struct erlang_cmd *erl_cmd;
erlang_pid erl_pid;
str conname, regproc;
int retcode = -1;
if(msg==NULL) {
LM_ERR("cmd_erlang_info: received null msg\n");
return -1;
}
if(fixup_get_svalue(msg, (gparam_p)cn, &conname)<0) {
LM_ERR("cmd_erlang_info: cannot get the connection name\n");
return -1;
}
for(node=nodes_lst;node;node=node->next) {
LM_DBG("cmd_erlang_info: matching %s with %.*s\n",node->name,conname.len,conname.s);
if(strcmp(node->name, conname.s)==0) break;
}
if(node==0){
LM_ERR("cmd_erlang_info: no such connection %.*s\n",conname.len,conname.s);
return -1;
}
if(fixup_get_svalue(msg, (gparam_p)rp, ®proc)<0) {
LM_ERR("cmd_erlang_info: cannot get the regproc name\n");
return -1;
}
printbuf_len = AVP_PRINTBUF_SIZE-1;
if(pv_printf(msg, (pv_elem_p)ar, printbuf, &printbuf_len)<0 || printbuf_len<=0)
{
LM_ERR("cmd_erlang_info: cannot expand erlang message body\n");
return -1;
}
erl_cmd=shm_malloc(sizeof(struct erlang_cmd));
if(!erl_cmd) {
LM_ERR("no shm");
return -1;
}
memset(erl_cmd,0,sizeof(struct erlang_cmd));
erl_cmd->erlbuf=shm_malloc(AVP_PRINTBUF_SIZE);
if (!erl_cmd->erlbuf) {
LM_ERR("no shm memory\n\n");
goto error;
}
if(lock_init(&(erl_cmd->lock))==NULL) {
LM_ERR("cannot init the lock\n");
goto error;
}
erl_cmd->reg_name=shm_strdup(®proc);
if (!erl_cmd->reg_name) {
LM_ERR("no shm memory\n\n");
goto error;
}
LM_DBG("cmd_erlang_info: %.*s %.*s %.*s\n",conname.len,conname.s,
regproc.len,regproc.s, printbuf_len,printbuf);
erl_cmd->cmd=ERLANG_INFO;
erl_cmd->node=node;
argbuf.buff=erl_cmd->erlbuf;
argbuf.buffsz=AVP_PRINTBUF_SIZE-1;
argbuf.index=0;
ei_x_encode_version(&argbuf);
//User passed term will be sedond element of tuple, first is our erlang pid
ei_x_encode_tuple_header(&argbuf, 2);
// we are hacking erlang pid so we can have worker system pid here
memcpy(&erl_pid,ei_self(&(node->ec)),sizeof(erlang_pid));
erl_pid.num=getpid();
ei_x_encode_pid(&argbuf, &erl_pid);
//so much for pid, now encode term
if(ei_x_format_wo_ver(&argbuf, printbuf)!=0) {
LM_ERR("cannot fromat erlang binary from arg string\n");
goto error;
}
// ei_x_encode_atom(&argbuf,"user");
erl_cmd->erlbuf_len=argbuf.index;
lock_get(&(erl_cmd->lock));
bytessent=write(pipe_fds[1], &erl_cmd, sizeof(erl_cmd));
LM_DBG("cmd_erlang_info: locked, sent %d %d %s %d %p %p, waiting for release\n",bytessent,
erl_cmd->cmd,erl_cmd->reg_name,erl_cmd->erlbuf_len,erl_cmd->erlbuf, erl_cmd);
lock_get(&(erl_cmd->lock));
LM_DBG("after lock\n");
if (erl_cmd->retcode <0) {
retcode=erl_cmd->retcode;
LM_DBG("cmd_erlang_info: failed %d\n",retcode);
goto error;
}
retcode=1;
error:
if(erl_cmd) {
if(erl_cmd->erlbuf) shm_free(erl_cmd->erlbuf);
if(erl_cmd->reg_name) shm_free(erl_cmd->reg_name);
shm_free(erl_cmd);
}
return retcode;
}
int cmd_erlang_rex(struct sip_msg* msg, char *cn , char *mo, char *fu, char *ar, char *_ret_pv) {
#define AVP_PRINTBUF_SIZE 1024
static char printbuf[AVP_PRINTBUF_SIZE];
int printbuf_len, bytessent;
ei_x_buff argbuf;
struct nodes_list* node;
struct erlang_cmd *erl_cmd;
erlang_pid erl_pid;
str conname, regproc;
str mod, fun;
int retcode = -1;
if(msg==NULL) {
LM_ERR("cmd_erlang_rex: received null msg\n");
return -1;
}
if(fixup_get_svalue(msg, (gparam_p)cn, &conname)<0) {
LM_ERR("cmd_erlang_rex: cannot get the connection name\n");
return -1;
}
for(node=nodes_lst;node;node=node->next) {
LM_DBG("matching %s with %.*s\n",node->name,conname.len,conname.s);
if(strcmp(node->name, conname.s)==0) break;
}
if(node==0){
LM_ERR("cmd_erlang_rex: no such connection %.*s\n",conname.len,conname.s);
return -1;
}
if(fixup_get_svalue(msg, (gparam_p)mo, &mod)<0) {
LM_ERR("cmd_erlang_rex: cannot get the mod name\n");
return -1;
}
if(fixup_get_svalue(msg, (gparam_p)fu, &fun)<0) {
LM_ERR("cmd_erlang_rex: cannot get the fun name\n");
return -1;
}
printbuf_len = AVP_PRINTBUF_SIZE-1;
if(pv_printf(msg, (pv_elem_p)ar, printbuf, &printbuf_len)<0 || printbuf_len<=0)
{
LM_ERR("erlang_cmd_rex: cannot expand args expression.\n");
return -1;
}
erl_cmd=shm_malloc(sizeof(struct erlang_cmd));
if(!erl_cmd) {
LM_ERR("no shm");
return -1;
}
memset(erl_cmd,0,sizeof(struct erlang_cmd));
erl_cmd->erlbuf=shm_malloc(AVP_PRINTBUF_SIZE);
if (!erl_cmd->erlbuf) {
LM_ERR("no shm memory\n\n");
goto error;
}
erl_cmd->ret_pv = (pv_spec_t*)shm_malloc(sizeof(pv_spec_t));
if (!erl_cmd->ret_pv) {
LM_ERR("no shm memory\n\n");
goto error;
}
memcpy(erl_cmd->ret_pv, (pv_spec_t *)_ret_pv, sizeof(pv_spec_t));
if(lock_init(&(erl_cmd->lock))==NULL) {
LM_ERR("cannot init the lock\n");
goto error;
}
regproc.s="rex";
regproc.len=3;
erl_cmd->reg_name=shm_strdup(®proc);
if (!erl_cmd->reg_name) {
LM_ERR("no shm memory\n\n");
goto error;
}
LM_DBG("cmd_erlang_rex: %.*s rex %.*s\n",conname.len,conname.s,
printbuf_len,printbuf);
erl_cmd->cmd=ERLANG_REX;
erl_cmd->node=node;
argbuf.buff=erl_cmd->erlbuf;
argbuf.buffsz=AVP_PRINTBUF_SIZE-1;
argbuf.index=0;
ei_x_encode_version(&argbuf);
//User passed term will be second element of tuple, first is our (hacked) erlang pid
ei_x_encode_tuple_header(&argbuf, 2);
// we are hacking erlang pid so we can have worker system pid here
memcpy(&erl_pid,ei_self(&(node->ec)),sizeof(erlang_pid));
erl_pid.num=getpid();
ei_x_encode_pid(&argbuf, &erl_pid);
erl_cmd->num=erl_pid.num;
erl_cmd->serial=erl_pid.serial;
//so much for pid, now encode rex call tuple {call, mod, fun, arg, user}
ei_x_encode_tuple_header(&argbuf, 5);
ei_x_encode_atom(&argbuf,"call");
ei_x_encode_atom_len(&argbuf, mod.s, mod.len);
ei_x_encode_atom_len(&argbuf, fun.s, fun.len);
if(ei_x_format_wo_ver(&argbuf, printbuf)!=0) {
LM_ERR("cannot fromat erlang binary from arg string\n");
goto error;
}
ei_x_encode_atom(&argbuf,"user");
erl_cmd->erlbuf_len=argbuf.index;
lock_get(&(erl_cmd->lock));
bytessent=write(pipe_fds[1], &erl_cmd, sizeof(erl_cmd));
LM_DBG("cmd_erlang_call: locked, sent %d %d %s %d %p %p, waiting for release\n",bytessent,
erl_cmd->cmd,erl_cmd->reg_name,erl_cmd->erlbuf_len,erl_cmd->erlbuf, erl_cmd);
lock_get(&(erl_cmd->lock));
LM_DBG("after lock\n");
if (erl_cmd->retcode <0) {
retcode=erl_cmd->retcode;
LM_DBG("cmd_erlang_call: failed %d\n",retcode);
goto error;
}
//reuse
argbuf.buff=erl_cmd->erlbuf;
argbuf.buffsz=erl_cmd->erlbuf_len;
argbuf.index=erl_cmd->decode_index;
fill_retpv(erl_cmd->ret_pv,&argbuf,&(argbuf.index));
retcode=1;
error:
if(erl_cmd) {
if(erl_cmd->ret_pv) shm_free(erl_cmd->ret_pv);
if(erl_cmd->erlbuf) shm_free(erl_cmd->erlbuf);
if(erl_cmd->reg_name) shm_free(erl_cmd->reg_name);
shm_free(erl_cmd);
}
return retcode;
}
