#971 split socket core logic and main files

Extract socket core and main from ogAdmServer file.

9 files changed, 536 insertions, 473 deletions

diff --git a/Makefile.am b/Makefile.am
index 4f19eff..24c0473 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -3,7 +3,9 @@ sbin_PROGRAMS = ogserver
 AM_CFLAGS  =  ${LIBDBI_CFLAGS} ${LIBJANSSON_CFLAGS} ${LIBEVENT_CFLAGS} -g -Wall
 
 ogserver_SOURCES= sources/ogAdmServer.c	\
+		  sources/core.c	\
 		  sources/dbi.c		\
+		  sources/main.c	\
 		  sources/schedule.c	\
 		  sources/utils.c	\
 		  sources/rest.c	\
diff --git a/sources/core.c b/sources/core.c
new file mode 100644
index 0000000..f7c25f5
--- /dev/null
+++ b/sources/core.c
@@ -0,0 +1,433 @@
+/*
+ * Copyright (C) 2020 Soleta Networks <info@soleta.eu>
+ *
+ * This program is free software: you can redistribute it and/or modify it under
+ * the terms of the GNU Affero General Public License as published by the
+ * Free Software Foundation, version 3.
+ */
+
+#include "ogAdmServer.h"
+#include "dbi.h"
+#include "utils.h"
+#include "list.h"
+#include "rest.h"
+#include "client.h"
+#include "json.h"
+#include "schedule.h"
+#include <syslog.h>
+#include <sys/ioctl.h>
+#include <ifaddrs.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <jansson.h>
+#include <time.h>
+
+static void og_client_release(struct ev_loop *loop, struct og_client *cli)
+{
+	if (cli->keepalive_idx >= 0) {
+		syslog(LOG_DEBUG, "closing keepalive connection for %s:%hu in slot %d\n",
+		       inet_ntoa(cli->addr.sin_addr),
+		       ntohs(cli->addr.sin_port), cli->keepalive_idx);
+		tbsockets[cli->keepalive_idx].cli = NULL;
+	}
+
+	list_del(&cli->list);
+	ev_io_stop(loop, &cli->io);
+	close(cli->io.fd);
+	free(cli);
+}
+
+static void og_client_keepalive(struct ev_loop *loop, struct og_client *cli)
+{
+	struct og_client *old_cli;
+
+	old_cli = tbsockets[cli->keepalive_idx].cli;
+	if (old_cli && old_cli != cli) {
+		syslog(LOG_DEBUG, "closing old keepalive connection for %s:%hu\n",
+		       inet_ntoa(old_cli->addr.sin_addr),
+		       ntohs(old_cli->addr.sin_port));
+
+		og_client_release(loop, old_cli);
+	}
+	tbsockets[cli->keepalive_idx].cli = cli;
+}
+
+static void og_client_reset_state(struct og_client *cli)
+{
+	cli->state = OG_CLIENT_RECEIVING_HEADER;
+	cli->buf_len = 0;
+}
+
+static int og_client_payload_too_large(struct og_client *cli)
+{
+	char buf[] = "HTTP/1.1 413 Payload Too Large\r\n"
+		     "Content-Length: 0\r\n\r\n";
+
+	send(og_client_socket(cli), buf, strlen(buf), 0);
+
+	return -1;
+}
+
+static int og_client_state_recv_hdr_rest(struct og_client *cli)
+{
+	char *ptr;
+
+	ptr = strstr(cli->buf, "\r\n\r\n");
+	if (!ptr)
+		return 0;
+
+	cli->msg_len = ptr - cli->buf + 4;
+
+	ptr = strstr(cli->buf, "Content-Length: ");
+	if (ptr) {
+		sscanf(ptr, "Content-Length: %i[^\r\n]", &cli->content_length);
+		if (cli->content_length < 0)
+			return -1;
+		cli->msg_len += cli->content_length;
+	}
+
+	ptr = strstr(cli->buf, "Authorization: ");
+	if (ptr)
+		sscanf(ptr, "Authorization: %63[^\r\n]", cli->auth_token);
+
+	return 1;
+}
+
+static int og_client_recv(struct og_client *cli, int events)
+{
+	struct ev_io *io = &cli->io;
+	int ret;
+
+	if (events & EV_ERROR) {
+		syslog(LOG_ERR, "unexpected error event from client %s:%hu\n",
+			       inet_ntoa(cli->addr.sin_addr),
+			       ntohs(cli->addr.sin_port));
+		return 0;
+	}
+
+	ret = recv(io->fd, cli->buf + cli->buf_len,
+		   sizeof(cli->buf) - cli->buf_len, 0);
+	if (ret <= 0) {
+		if (ret < 0) {
+			syslog(LOG_ERR, "error reading from client %s:%hu (%s)\n",
+			       inet_ntoa(cli->addr.sin_addr), ntohs(cli->addr.sin_port),
+			       strerror(errno));
+		} else {
+			syslog(LOG_DEBUG, "closed connection by %s:%hu\n",
+			       inet_ntoa(cli->addr.sin_addr), ntohs(cli->addr.sin_port));
+		}
+		return ret;
+	}
+
+	return ret;
+}
+
+static void og_client_read_cb(struct ev_loop *loop, struct ev_io *io, int events)
+{
+	struct og_client *cli;
+	int ret;
+
+	cli = container_of(io, struct og_client, io);
+
+	ret = og_client_recv(cli, events);
+	if (ret <= 0)
+		goto close;
+
+	if (cli->keepalive_idx >= 0)
+		return;
+
+	ev_timer_again(loop, &cli->timer);
+
+	cli->buf_len += ret;
+	if (cli->buf_len >= sizeof(cli->buf)) {
+		syslog(LOG_ERR, "client request from %s:%hu is too long\n",
+		       inet_ntoa(cli->addr.sin_addr), ntohs(cli->addr.sin_port));
+		og_client_payload_too_large(cli);
+		goto close;
+	}
+
+	switch (cli->state) {
+	case OG_CLIENT_RECEIVING_HEADER:
+		ret = og_client_state_recv_hdr_rest(cli);
+		if (ret < 0)
+			goto close;
+		if (!ret)
+			return;
+
+		cli->state = OG_CLIENT_RECEIVING_PAYLOAD;
+		/* Fall through. */
+	case OG_CLIENT_RECEIVING_PAYLOAD:
+		/* Still not enough data to process request. */
+		if (cli->buf_len < cli->msg_len)
+			return;
+
+		cli->state = OG_CLIENT_PROCESSING_REQUEST;
+		/* fall through. */
+	case OG_CLIENT_PROCESSING_REQUEST:
+		ret = og_client_state_process_payload_rest(cli);
+		if (ret < 0) {
+			syslog(LOG_ERR, "Failed to process HTTP request from %s:%hu\n",
+			       inet_ntoa(cli->addr.sin_addr),
+			       ntohs(cli->addr.sin_port));
+		}
+		if (ret < 0)
+			goto close;
+
+		if (cli->keepalive_idx < 0) {
+			syslog(LOG_DEBUG, "server closing connection to %s:%hu\n",
+			       inet_ntoa(cli->addr.sin_addr), ntohs(cli->addr.sin_port));
+			goto close;
+		} else {
+			syslog(LOG_DEBUG, "leaving client %s:%hu in keepalive mode\n",
+			       inet_ntoa(cli->addr.sin_addr),
+			       ntohs(cli->addr.sin_port));
+			og_client_keepalive(loop, cli);
+			og_client_reset_state(cli);
+		}
+		break;
+	default:
+		syslog(LOG_ERR, "unknown state, critical internal error\n");
+		goto close;
+	}
+	return;
+close:
+	ev_timer_stop(loop, &cli->timer);
+	og_client_release(loop, cli);
+}
+
+enum og_agent_state {
+	OG_AGENT_RECEIVING_HEADER	= 0,
+	OG_AGENT_RECEIVING_PAYLOAD,
+	OG_AGENT_PROCESSING_RESPONSE,
+};
+
+static int og_agent_state_recv_hdr_rest(struct og_client *cli)
+{
+	char *ptr;
+
+	ptr = strstr(cli->buf, "\r\n\r\n");
+	if (!ptr)
+		return 0;
+
+	cli->msg_len = ptr - cli->buf + 4;
+
+	ptr = strstr(cli->buf, "Content-Length: ");
+	if (ptr) {
+		sscanf(ptr, "Content-Length: %i[^\r\n]", &cli->content_length);
+		if (cli->content_length < 0)
+			return -1;
+		cli->msg_len += cli->content_length;
+	}
+
+	return 1;
+}
+
+static void og_agent_reset_state(struct og_client *cli)
+{
+	cli->state = OG_AGENT_RECEIVING_HEADER;
+	cli->buf_len = 0;
+	cli->content_length = 0;
+	memset(cli->buf, 0, sizeof(cli->buf));
+}
+
+static void og_agent_deliver_pending_cmd(struct og_client *cli)
+{
+	const struct og_cmd *cmd;
+
+	cmd = og_cmd_find(inet_ntoa(cli->addr.sin_addr));
+	if (!cmd)
+		return;
+
+	og_send_request(cmd->method, cmd->type, &cmd->params, cmd->json);
+	cli->last_cmd_id = cmd->id;
+
+	og_cmd_free(cmd);
+}
+
+static void og_agent_read_cb(struct ev_loop *loop, struct ev_io *io, int events)
+{
+	struct og_client *cli;
+	int ret;
+
+	cli = container_of(io, struct og_client, io);
+
+	ret = og_client_recv(cli, events);
+	if (ret <= 0)
+		goto close;
+
+	ev_timer_again(loop, &cli->timer);
+
+	cli->buf_len += ret;
+	if (cli->buf_len >= sizeof(cli->buf)) {
+		syslog(LOG_ERR, "client request from %s:%hu is too long\n",
+		       inet_ntoa(cli->addr.sin_addr), ntohs(cli->addr.sin_port));
+		goto close;
+	}
+
+	switch (cli->state) {
+	case OG_AGENT_RECEIVING_HEADER:
+		ret = og_agent_state_recv_hdr_rest(cli);
+		if (ret < 0)
+			goto close;
+		if (!ret)
+			return;
+
+		cli->state = OG_AGENT_RECEIVING_PAYLOAD;
+		/* Fall through. */
+	case OG_AGENT_RECEIVING_PAYLOAD:
+		/* Still not enough data to process request. */
+		if (cli->buf_len < cli->msg_len)
+			return;
+
+		cli->state = OG_AGENT_PROCESSING_RESPONSE;
+		/* fall through. */
+	case OG_AGENT_PROCESSING_RESPONSE:
+		ret = og_agent_state_process_response(cli);
+		if (ret < 0) {
+			syslog(LOG_ERR, "Failed to process HTTP request from %s:%hu\n",
+			       inet_ntoa(cli->addr.sin_addr),
+			       ntohs(cli->addr.sin_port));
+			goto close;
+		} else if (ret == 0) {
+			og_agent_deliver_pending_cmd(cli);
+		}
+
+		syslog(LOG_DEBUG, "leaving client %s:%hu in keepalive mode\n",
+		       inet_ntoa(cli->addr.sin_addr),
+		       ntohs(cli->addr.sin_port));
+		og_agent_reset_state(cli);
+		break;
+	default:
+		syslog(LOG_ERR, "unknown state, critical internal error\n");
+		goto close;
+	}
+	return;
+close:
+	ev_timer_stop(loop, &cli->timer);
+	og_client_release(loop, cli);
+}
+
+static void og_client_timer_cb(struct ev_loop *loop, ev_timer *timer, int events)
+{
+	struct og_client *cli;
+
+	cli = container_of(timer, struct og_client, timer);
+	if (cli->keepalive_idx >= 0) {
+		ev_timer_again(loop, &cli->timer);
+		return;
+	}
+	syslog(LOG_ERR, "timeout request for client %s:%hu\n",
+	       inet_ntoa(cli->addr.sin_addr), ntohs(cli->addr.sin_port));
+
+	og_client_release(loop, cli);
+}
+
+static void og_agent_send_refresh(struct og_client *cli)
+{
+	struct og_msg_params params;
+	int err;
+
+	params.ips_array[0] = inet_ntoa(cli->addr.sin_addr);
+	params.ips_array_len = 1;
+
+	err = og_send_request(OG_METHOD_GET, OG_CMD_REFRESH, &params, NULL);
+	if (err < 0) {
+		syslog(LOG_ERR, "Can't send refresh to: %s\n",
+		       params.ips_array[0]);
+	} else {
+		syslog(LOG_INFO, "Sent refresh to: %s\n",
+		       params.ips_array[0]);
+	}
+}
+
+/* Shut down connection if there is no complete message after 10 seconds. */
+#define OG_CLIENT_TIMEOUT       10
+
+/* Agent client operation might take longer, shut down after 30 seconds. */
+#define OG_AGENT_CLIENT_TIMEOUT 30
+
+int socket_rest, socket_agent_rest;
+
+void og_server_accept_cb(struct ev_loop *loop, struct ev_io *io, int events)
+{
+	struct sockaddr_in client_addr;
+	socklen_t addrlen = sizeof(client_addr);
+	struct og_client *cli;
+	int client_sd;
+
+	if (events & EV_ERROR)
+		return;
+
+	client_sd = accept(io->fd, (struct sockaddr *)&client_addr, &addrlen);
+	if (client_sd < 0) {
+		syslog(LOG_ERR, "cannot accept client connection\n");
+		return;
+	}
+
+	cli = (struct og_client *)calloc(1, sizeof(struct og_client));
+	if (!cli) {
+		close(client_sd);
+		return;
+	}
+	memcpy(&cli->addr, &client_addr, sizeof(client_addr));
+	if (io->fd == socket_agent_rest)
+		cli->keepalive_idx = 0;
+	else
+		cli->keepalive_idx = -1;
+
+	if (io->fd == socket_rest)
+		cli->rest = true;
+	else if (io->fd == socket_agent_rest)
+		cli->agent = true;
+
+	syslog(LOG_DEBUG, "connection from client %s:%hu\n",
+	       inet_ntoa(cli->addr.sin_addr), ntohs(cli->addr.sin_port));
+
+	if (io->fd == socket_agent_rest)
+		ev_io_init(&cli->io, og_agent_read_cb, client_sd, EV_READ);
+	else
+		ev_io_init(&cli->io, og_client_read_cb, client_sd, EV_READ);
+
+	ev_io_start(loop, &cli->io);
+	if (io->fd == socket_agent_rest) {
+		ev_timer_init(&cli->timer, og_client_timer_cb,
+			      OG_AGENT_CLIENT_TIMEOUT, 0.);
+	} else {
+		ev_timer_init(&cli->timer, og_client_timer_cb,
+			      OG_CLIENT_TIMEOUT, 0.);
+	}
+	ev_timer_start(loop, &cli->timer);
+	og_client_add(cli);
+
+	if (io->fd == socket_agent_rest) {
+		og_agent_send_refresh(cli);
+	}
+}
+
+int og_socket_server_init(const char *port)
+{
+	struct sockaddr_in local;
+	int sd, on = 1;
+
+	sd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
+	if (sd < 0) {
+		syslog(LOG_ERR, "cannot create main socket\n");
+		return -1;
+	}
+	setsockopt(sd, SOL_SOCKET, SO_REUSEPORT, &on, sizeof(int));
+
+	local.sin_addr.s_addr = htonl(INADDR_ANY);
+	local.sin_family = AF_INET;
+	local.sin_port = htons(atoi(port));
+
+	if (bind(sd, (struct sockaddr *) &local, sizeof(local)) < 0) {
+		close(sd);
+		syslog(LOG_ERR, "cannot bind socket\n");
+		return -1;
+	}
+
+	listen(sd, 250);
+
+	return sd;
+}
diff --git a/sources/core.h b/sources/core.h
new file mode 100644
index 0000000..dd5cd58
--- /dev/null
+++ b/sources/core.h
@@ -0,0 +1,10 @@
+#ifndef _OG_CORE_H
+#define _OG_CORE_H
+
+extern int socket_rest, socket_agent_rest;
+extern struct ev_loop *og_loop;
+
+int og_socket_server_init(const char *port);
+void og_server_accept_cb(struct ev_loop *loop, struct ev_io *io, int events);
+
+#endif
diff --git a/sources/dbi.c b/sources/dbi.c
index cc5c5b5..6640f50 100644
--- a/sources/dbi.c
+++ b/sources/dbi.c
@@ -1,3 +1,11 @@
+/*
+ * Copyright (C) 2020 Soleta Networks <info@soleta.eu>
+ *
+ * This program is free software: you can redistribute it and/or modify it under
+ * the terms of the GNU Affero General Public License as published by the
+ * Free Software Foundation, version 3.
+ */
+
 #include "dbi.h"
 
 struct og_dbi *og_dbi_open(struct og_dbi_config *config)
diff --git a/sources/main.c b/sources/main.c
new file mode 100644
index 0000000..31263d6
--- /dev/null
+++ b/sources/main.c
@@ -0,0 +1,69 @@
+/*
+ * Copyright (C) 2020 Soleta Networks <info@soleta.eu>
+ *
+ * This program is free software: you can redistribute it and/or modify it under
+ * the terms of the GNU Affero General Public License as published by the
+ * Free Software Foundation, version 3.
+ */
+
+#include "ogAdmServer.h"
+#include "dbi.h"
+#include "utils.h"
+#include "list.h"
+#include "rest.h"
+#include "client.h"
+#include "json.h"
+#include "schedule.h"
+#include "core.h"
+#include <syslog.h>
+
+int main(int argc, char *argv[])
+{
+	struct ev_io ev_io_server_rest, ev_io_agent_rest;
+	int i;
+
+	og_loop = ev_default_loop(0);
+
+	if (signal(SIGPIPE, SIG_IGN) == SIG_ERR)
+		exit(EXIT_FAILURE);
+
+	openlog("ogAdmServer", LOG_PID, LOG_DAEMON);
+
+	if (!validacionParametros(argc, argv, 1)) // Valida parámetros de ejecución
+		exit(EXIT_FAILURE);
+
+	if (!tomaConfiguracion(szPathFileCfg)) { // Toma parametros de configuracion
+		exit(EXIT_FAILURE);
+	}
+
+	for (i = 0; i < MAXIMOS_CLIENTES; i++) {
+		tbsockets[i].ip[0] = '\0';
+		tbsockets[i].cli = NULL;
+	}
+
+	socket_rest = og_socket_server_init("8888");
+	if (socket_rest < 0)
+		exit(EXIT_FAILURE);
+
+	ev_io_init(&ev_io_server_rest, og_server_accept_cb, socket_rest, EV_READ);
+	ev_io_start(og_loop, &ev_io_server_rest);
+
+	socket_agent_rest = og_socket_server_init("8889");
+	if (socket_agent_rest < 0)
+		exit(EXIT_FAILURE);
+
+	ev_io_init(&ev_io_agent_rest, og_server_accept_cb, socket_agent_rest, EV_READ);
+	ev_io_start(og_loop, &ev_io_agent_rest);
+
+	if (og_dbi_schedule_get() < 0)
+		exit(EXIT_FAILURE);
+
+	og_schedule_next(og_loop);
+
+	syslog(LOG_INFO, "Waiting for connections\n");
+
+	while (1)
+		ev_loop(og_loop, 0);
+
+	exit(EXIT_SUCCESS);
+}
diff --git a/sources/ogAdmLib.h b/sources/ogAdmLib.h
index e5bd09e..fde24eb 100644
--- a/sources/ogAdmLib.h
+++ b/sources/ogAdmLib.h
@@ -115,3 +115,6 @@ char* escaparCadena(char *cadena);
 	typeof( ((type *)0)->member ) *__mptr = (ptr);		\
 	(type *)( (char *)__mptr - offsetof(type,member) );})
 
+#include <stdbool.h>
+
+bool tomaConfiguracion(const char *filecfg);
diff --git a/sources/ogAdmServer.c b/sources/ogAdmServer.c
index bcec346..c9b0b70 100644
--- a/sources/ogAdmServer.c
+++ b/sources/ogAdmServer.c
@@ -48,7 +48,7 @@ struct og_dbi_config dbi_config = {
 //		true: Si el proceso es correcto
 //		false: En caso de ocurrir algún error 
 //________________________________________________________________________________________________________
-static bool tomaConfiguracion(const char *filecfg)
+bool tomaConfiguracion(const char *filecfg)
 {
 	char buf[1024], *line;
 	char *key, *value;
@@ -131,12 +131,6 @@ static bool tomaConfiguracion(const char *filecfg)
 
 #define OG_CMD_MAXLEN		64
 
-/* Shut down connection if there is no complete message after 10 seconds. */
-#define OG_CLIENT_TIMEOUT	10
-
-/* Agent client operation might take longer, shut down after 30 seconds. */
-#define OG_AGENT_CLIENT_TIMEOUT	30
-
 // ________________________________________________________________________________________________________
 // Función: clienteDisponible
 //
@@ -1305,469 +1299,3 @@ bool cuestionPerfilSoftware(struct og_dbi *dbi, char *idc, char *ido,
 
 	return true;
 }
-
-static void og_client_release(struct ev_loop *loop, struct og_client *cli)
-{
-	if (cli->keepalive_idx >= 0) {
-		syslog(LOG_DEBUG, "closing keepalive connection for %s:%hu in slot %d\n",
-		       inet_ntoa(cli->addr.sin_addr),
-		       ntohs(cli->addr.sin_port), cli->keepalive_idx);
-		tbsockets[cli->keepalive_idx].cli = NULL;
-	}
-
-	list_del(&cli->list);
-	ev_io_stop(loop, &cli->io);
-	close(cli->io.fd);
-	free(cli);
-}
-
-static void og_client_keepalive(struct ev_loop *loop, struct og_client *cli)
-{
-	struct og_client *old_cli;
-
-	old_cli = tbsockets[cli->keepalive_idx].cli;
-	if (old_cli && old_cli != cli) {
-		syslog(LOG_DEBUG, "closing old keepalive connection for %s:%hu\n",
-		       inet_ntoa(old_cli->addr.sin_addr),
-		       ntohs(old_cli->addr.sin_port));
-
-		og_client_release(loop, old_cli);
-	}
-	tbsockets[cli->keepalive_idx].cli = cli;
-}
-
-static void og_client_reset_state(struct og_client *cli)
-{
-	cli->state = OG_CLIENT_RECEIVING_HEADER;
-	cli->buf_len = 0;
-}
-
-static int og_client_payload_too_large(struct og_client *cli)
-{
-	char buf[] = "HTTP/1.1 413 Payload Too Large\r\n"
-		     "Content-Length: 0\r\n\r\n";
-
-	send(og_client_socket(cli), buf, strlen(buf), 0);
-
-	return -1;
-}
-
-static int og_client_state_recv_hdr_rest(struct og_client *cli)
-{
-	char *ptr;
-
-	ptr = strstr(cli->buf, "\r\n\r\n");
-	if (!ptr)
-		return 0;
-
-	cli->msg_len = ptr - cli->buf + 4;
-
-	ptr = strstr(cli->buf, "Content-Length: ");
-	if (ptr) {
-		sscanf(ptr, "Content-Length: %i[^\r\n]", &cli->content_length);
-		if (cli->content_length < 0)
-			return -1;
-		cli->msg_len += cli->content_length;
-	}
-
-	ptr = strstr(cli->buf, "Authorization: ");
-	if (ptr)
-		sscanf(ptr, "Authorization: %63[^\r\n]", cli->auth_token);
-
-	return 1;
-}
-
-static int og_client_recv(struct og_client *cli, int events)
-{
-	struct ev_io *io = &cli->io;
-	int ret;
-
-	if (events & EV_ERROR) {
-		syslog(LOG_ERR, "unexpected error event from client %s:%hu\n",
-			       inet_ntoa(cli->addr.sin_addr),
-			       ntohs(cli->addr.sin_port));
-		return 0;
-	}
-
-	ret = recv(io->fd, cli->buf + cli->buf_len,
-		   sizeof(cli->buf) - cli->buf_len, 0);
-	if (ret <= 0) {
-		if (ret < 0) {
-			syslog(LOG_ERR, "error reading from client %s:%hu (%s)\n",
-			       inet_ntoa(cli->addr.sin_addr), ntohs(cli->addr.sin_port),
-			       strerror(errno));
-		} else {
-			syslog(LOG_DEBUG, "closed connection by %s:%hu\n",
-			       inet_ntoa(cli->addr.sin_addr), ntohs(cli->addr.sin_port));
-		}
-		return ret;
-	}
-
-	return ret;
-}
-
-static void og_client_read_cb(struct ev_loop *loop, struct ev_io *io, int events)
-{
-	struct og_client *cli;
-	int ret;
-
-	cli = container_of(io, struct og_client, io);
-
-	ret = og_client_recv(cli, events);
-	if (ret <= 0)
-		goto close;
-
-	if (cli->keepalive_idx >= 0)
-		return;
-
-	ev_timer_again(loop, &cli->timer);
-
-	cli->buf_len += ret;
-	if (cli->buf_len >= sizeof(cli->buf)) {
-		syslog(LOG_ERR, "client request from %s:%hu is too long\n",
-		       inet_ntoa(cli->addr.sin_addr), ntohs(cli->addr.sin_port));
-		og_client_payload_too_large(cli);
-		goto close;
-	}
-
-	switch (cli->state) {
-	case OG_CLIENT_RECEIVING_HEADER:
-		ret = og_client_state_recv_hdr_rest(cli);
-		if (ret < 0)
-			goto close;
-		if (!ret)
-			return;
-
-		cli->state = OG_CLIENT_RECEIVING_PAYLOAD;
-		/* Fall through. */
-	case OG_CLIENT_RECEIVING_PAYLOAD:
-		/* Still not enough data to process request. */
-		if (cli->buf_len < cli->msg_len)
-			return;
-
-		cli->state = OG_CLIENT_PROCESSING_REQUEST;
-		/* fall through. */
-	case OG_CLIENT_PROCESSING_REQUEST:
-		ret = og_client_state_process_payload_rest(cli);
-		if (ret < 0) {
-			syslog(LOG_ERR, "Failed to process HTTP request from %s:%hu\n",
-			       inet_ntoa(cli->addr.sin_addr),
-			       ntohs(cli->addr.sin_port));
-		}
-		if (ret < 0)
-			goto close;
-
-		if (cli->keepalive_idx < 0) {
-			syslog(LOG_DEBUG, "server closing connection to %s:%hu\n",
-			       inet_ntoa(cli->addr.sin_addr), ntohs(cli->addr.sin_port));
-			goto close;
-		} else {
-			syslog(LOG_DEBUG, "leaving client %s:%hu in keepalive mode\n",
-			       inet_ntoa(cli->addr.sin_addr),
-			       ntohs(cli->addr.sin_port));
-			og_client_keepalive(loop, cli);
-			og_client_reset_state(cli);
-		}
-		break;
-	default:
-		syslog(LOG_ERR, "unknown state, critical internal error\n");
-		goto close;
-	}
-	return;
-close:
-	ev_timer_stop(loop, &cli->timer);
-	og_client_release(loop, cli);
-}
-
-enum og_agent_state {
-	OG_AGENT_RECEIVING_HEADER	= 0,
-	OG_AGENT_RECEIVING_PAYLOAD,
-	OG_AGENT_PROCESSING_RESPONSE,
-};
-
-static int og_agent_state_recv_hdr_rest(struct og_client *cli)
-{
-	char *ptr;
-
-	ptr = strstr(cli->buf, "\r\n\r\n");
-	if (!ptr)
-		return 0;
-
-	cli->msg_len = ptr - cli->buf + 4;
-
-	ptr = strstr(cli->buf, "Content-Length: ");
-	if (ptr) {
-		sscanf(ptr, "Content-Length: %i[^\r\n]", &cli->content_length);
-		if (cli->content_length < 0)
-			return -1;
-		cli->msg_len += cli->content_length;
-	}
-
-	return 1;
-}
-
-static void og_agent_reset_state(struct og_client *cli)
-{
-	cli->state = OG_AGENT_RECEIVING_HEADER;
-	cli->buf_len = 0;
-	cli->content_length = 0;
-	memset(cli->buf, 0, sizeof(cli->buf));
-}
-
-static void og_agent_deliver_pending_cmd(struct og_client *cli)
-{
-	const struct og_cmd *cmd;
-
-	cmd = og_cmd_find(inet_ntoa(cli->addr.sin_addr));
-	if (!cmd)
-		return;
-
-	og_send_request(cmd->method, cmd->type, &cmd->params, cmd->json);
-	cli->last_cmd_id = cmd->id;
-
-	og_cmd_free(cmd);
-}
-
-static void og_agent_read_cb(struct ev_loop *loop, struct ev_io *io, int events)
-{
-	struct og_client *cli;
-	int ret;
-
-	cli = container_of(io, struct og_client, io);
-
-	ret = og_client_recv(cli, events);
-	if (ret <= 0)
-		goto close;
-
-	ev_timer_again(loop, &cli->timer);
-
-	cli->buf_len += ret;
-	if (cli->buf_len >= sizeof(cli->buf)) {
-		syslog(LOG_ERR, "client request from %s:%hu is too long\n",
-		       inet_ntoa(cli->addr.sin_addr), ntohs(cli->addr.sin_port));
-		goto close;
-	}
-
-	switch (cli->state) {
-	case OG_AGENT_RECEIVING_HEADER:
-		ret = og_agent_state_recv_hdr_rest(cli);
-		if (ret < 0)
-			goto close;
-		if (!ret)
-			return;
-
-		cli->state = OG_AGENT_RECEIVING_PAYLOAD;
-		/* Fall through. */
-	case OG_AGENT_RECEIVING_PAYLOAD:
-		/* Still not enough data to process request. */
-		if (cli->buf_len < cli->msg_len)
-			return;
-
-		cli->state = OG_AGENT_PROCESSING_RESPONSE;
-		/* fall through. */
-	case OG_AGENT_PROCESSING_RESPONSE:
-		ret = og_agent_state_process_response(cli);
-		if (ret < 0) {
-			syslog(LOG_ERR, "Failed to process HTTP request from %s:%hu\n",
-			       inet_ntoa(cli->addr.sin_addr),
-			       ntohs(cli->addr.sin_port));
-			goto close;
-		} else if (ret == 0) {
-			og_agent_deliver_pending_cmd(cli);
-		}
-
-		syslog(LOG_DEBUG, "leaving client %s:%hu in keepalive mode\n",
-		       inet_ntoa(cli->addr.sin_addr),
-		       ntohs(cli->addr.sin_port));
-		og_agent_reset_state(cli);
-		break;
-	default:
-		syslog(LOG_ERR, "unknown state, critical internal error\n");
-		goto close;
-	}
-	return;
-close:
-	ev_timer_stop(loop, &cli->timer);
-	og_client_release(loop, cli);
-}
-
-static void og_client_timer_cb(struct ev_loop *loop, ev_timer *timer, int events)
-{
-	struct og_client *cli;
-
-	cli = container_of(timer, struct og_client, timer);
-	if (cli->keepalive_idx >= 0) {
-		ev_timer_again(loop, &cli->timer);
-		return;
-	}
-	syslog(LOG_ERR, "timeout request for client %s:%hu\n",
-	       inet_ntoa(cli->addr.sin_addr), ntohs(cli->addr.sin_port));
-
-	og_client_release(loop, cli);
-}
-
-static void og_agent_send_refresh(struct og_client *cli)
-{
-	struct og_msg_params params;
-	int err;
-
-	params.ips_array[0] = inet_ntoa(cli->addr.sin_addr);
-	params.ips_array_len = 1;
-
-	err = og_send_request(OG_METHOD_GET, OG_CMD_REFRESH, &params, NULL);
-	if (err < 0) {
-		syslog(LOG_ERR, "Can't send refresh to: %s\n",
-		       params.ips_array[0]);
-	} else {
-		syslog(LOG_INFO, "Sent refresh to: %s\n",
-		       params.ips_array[0]);
-	}
-}
-
-static int socket_rest, socket_agent_rest;
-
-static void og_server_accept_cb(struct ev_loop *loop, struct ev_io *io,
-				int events)
-{
-	struct sockaddr_in client_addr;
-	socklen_t addrlen = sizeof(client_addr);
-	struct og_client *cli;
-	int client_sd;
-
-	if (events & EV_ERROR)
-		return;
-
-	client_sd = accept(io->fd, (struct sockaddr *)&client_addr, &addrlen);
-	if (client_sd < 0) {
-		syslog(LOG_ERR, "cannot accept client connection\n");
-		return;
-	}
-
-	cli = (struct og_client *)calloc(1, sizeof(struct og_client));
-	if (!cli) {
-		close(client_sd);
-		return;
-	}
-	memcpy(&cli->addr, &client_addr, sizeof(client_addr));
-	if (io->fd == socket_agent_rest)
-		cli->keepalive_idx = 0;
-	else
-		cli->keepalive_idx = -1;
-
-	if (io->fd == socket_rest)
-		cli->rest = true;
-	else if (io->fd == socket_agent_rest)
-		cli->agent = true;
-
-	syslog(LOG_DEBUG, "connection from client %s:%hu\n",
-	       inet_ntoa(cli->addr.sin_addr), ntohs(cli->addr.sin_port));
-
-	if (io->fd == socket_agent_rest)
-		ev_io_init(&cli->io, og_agent_read_cb, client_sd, EV_READ);
-	else
-		ev_io_init(&cli->io, og_client_read_cb, client_sd, EV_READ);
-
-	ev_io_start(loop, &cli->io);
-	if (io->fd == socket_agent_rest) {
-		ev_timer_init(&cli->timer, og_client_timer_cb,
-			      OG_AGENT_CLIENT_TIMEOUT, 0.);
-	} else {
-		ev_timer_init(&cli->timer, og_client_timer_cb,
-			      OG_CLIENT_TIMEOUT, 0.);
-	}
-	ev_timer_start(loop, &cli->timer);
-	og_client_add(cli);
-
-	if (io->fd == socket_agent_rest) {
-		og_agent_send_refresh(cli);
-	}
-}
-
-static int og_socket_server_init(const char *port)
-{
-	struct sockaddr_in local;
-	int sd, on = 1;
-
-	sd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
-	if (sd < 0) {
-		syslog(LOG_ERR, "cannot create main socket\n");
-		return -1;
-	}
-	setsockopt(sd, SOL_SOCKET, SO_REUSEPORT, &on, sizeof(int));
-
-	local.sin_addr.s_addr = htonl(INADDR_ANY);
-	local.sin_family = AF_INET;
-	local.sin_port = htons(atoi(port));
-
-	if (bind(sd, (struct sockaddr *) &local, sizeof(local)) < 0) {
-		close(sd);
-		syslog(LOG_ERR, "cannot bind socket\n");
-		return -1;
-	}
-
-	listen(sd, 250);
-
-	return sd;
-}
-
-struct ev_loop *og_loop;
-
-int main(int argc, char *argv[])
-{
-	struct ev_io ev_io_server_rest, ev_io_agent_rest;
-	int i;
-
-	og_loop = ev_default_loop(0);
-
-	if (signal(SIGPIPE, SIG_IGN) == SIG_ERR)
-		exit(EXIT_FAILURE);
-
-	openlog("ogAdmServer", LOG_PID, LOG_DAEMON);
-
-	/*--------------------------------------------------------------------------------------------------------
-	 Validación de parámetros de ejecución y lectura del fichero de configuración del servicio
-	 ---------------------------------------------------------------------------------------------------------*/
-	if (!validacionParametros(argc, argv, 1)) // Valida parámetros de ejecución
-		exit(EXIT_FAILURE);
-
-	if (!tomaConfiguracion(szPathFileCfg)) { // Toma parametros de configuracion
-		exit(EXIT_FAILURE);
-	}
-
-	/*--------------------------------------------------------------------------------------------------------
-	 // Inicializa array de información de los clientes
-	 ---------------------------------------------------------------------------------------------------------*/
-	for (i = 0; i < MAXIMOS_CLIENTES; i++) {
-		tbsockets[i].ip[0] = '\0';
-		tbsockets[i].cli = NULL;
-	}
-	/*--------------------------------------------------------------------------------------------------------
-	 Creación y configuración del socket del servicio
-	 ---------------------------------------------------------------------------------------------------------*/
-
-	socket_rest = og_socket_server_init("8888");
-	if (socket_rest < 0)
-		exit(EXIT_FAILURE);
-
-	ev_io_init(&ev_io_server_rest, og_server_accept_cb, socket_rest, EV_READ);
-	ev_io_start(og_loop, &ev_io_server_rest);
-
-	socket_agent_rest = og_socket_server_init("8889");
-	if (socket_agent_rest < 0)
-		exit(EXIT_FAILURE);
-
-	ev_io_init(&ev_io_agent_rest, og_server_accept_cb, socket_agent_rest, EV_READ);
-	ev_io_start(og_loop, &ev_io_agent_rest);
-
-	if (og_dbi_schedule_get() < 0)
-		exit(EXIT_FAILURE);
-
-	og_schedule_next(og_loop);
-
-	syslog(LOG_INFO, "Waiting for connections\n");
-
-	while (1)
-		ev_loop(og_loop, 0);
-
-	exit(EXIT_SUCCESS);
-}
diff --git a/sources/rest.c b/sources/rest.c
index e9ee00f..35f3e03 100644
--- a/sources/rest.c
+++ b/sources/rest.c
@@ -22,6 +22,8 @@
 #include <jansson.h>
 #include <time.h>
 
+struct ev_loop *og_loop;
+
 static TRAMA *og_msg_alloc(char *data, unsigned int len)
 {
 	TRAMA *ptrTrama;
diff --git a/sources/utils.c b/sources/utils.c
index 4aa76f8..433a0dc 100644
--- a/sources/utils.c
+++ b/sources/utils.c
@@ -1,3 +1,11 @@
+/*
+ * Copyright (C) 2020 Soleta Networks <info@soleta.eu>
+ *
+ * This program is free software: you can redistribute it and/or modify it under
+ * the terms of the GNU Affero General Public License as published by the
+ * Free Software Foundation, version 3.
+ */
+
 #include <ctype.h>
 #include "utils.h"