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+/**
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+ * Copyright 2015 (C) Orange
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+ * <[email protected]>
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+ *
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+ * This file is part of Kamailio, a free SIP server.
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+ *
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+ * This file is free software; you can redistribute it and/or modify
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+ * it under the terms of the GNU General Public License as published by
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+ * the Free Software Foundation; either version 2 of the License, or
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+ * (at your option) any later version
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+ *
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+ *
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+ * This file is distributed in the hope that it will be useful,
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+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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+ * GNU General Public License for more details.
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+ *
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+ * You should have received a copy of the GNU General Public License
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+ * along with this program; if not, write to the Free Software
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+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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+ *
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+ */
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+
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+
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+#include <stdio.h>
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+#include <unistd.h>
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+#include <stdlib.h>
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+#include <string.h>
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+
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+#include "../../globals.h"
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+#include "../../sr_module.h"
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+#include "../../tcp_options.h"
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+#include "../../dprint.h"
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+#include "../../mod_fix.h"
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+
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+#include "tcpops.h"
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+
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+MODULE_VERSION
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+
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+static int mod_init(void);
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+static int child_init(int);
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+static void mod_destroy(void);
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+static int w_tcp_keepalive_enable4(sip_msg_t* msg, char* con, char* idle, char *cnt, char *intvl);
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+static int w_tcp_keepalive_enable3(sip_msg_t* msg, char* idle, char *cnt, char *intvl);
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+static int w_tcp_keepalive_disable1(sip_msg_t* msg, char* con);
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+static int w_tcp_keepalive_disable0(sip_msg_t* msg);
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+
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+static int fixup_tcp_keepalive_numpv(void** param, int param_no);
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+
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+
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+static cmd_export_t cmds[]={
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+ {"tcp_keepalive_enable", (cmd_function)w_tcp_keepalive_enable4, 4, fixup_tcp_keepalive_numpv,
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+ 0, ANY_ROUTE},
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+ {"tcp_keepalive_enable", (cmd_function)w_tcp_keepalive_enable3, 3, fixup_tcp_keepalive_numpv,
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+ 0, REQUEST_ROUTE|ONREPLY_ROUTE},
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+ {"tcp_keepalive_disable", (cmd_function)w_tcp_keepalive_disable1, 1, fixup_tcp_keepalive_numpv,
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+ 0, ANY_ROUTE},
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+ {"tcp_keepalive_disable", (cmd_function)w_tcp_keepalive_disable0, 0, 0,
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+ 0, REQUEST_ROUTE|ONREPLY_ROUTE},
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+ {0, 0, 0, 0, 0, 0}
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+};
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+
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+
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+
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+struct module_exports exports = {
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+ "tcpops",
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+ DEFAULT_DLFLAGS, /* dlopen flags */
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+ cmds, /* exported functions to config */
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+ 0, /* exported parameters to config */
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+ 0, /* exported statistics */
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+ 0, /* exported MI functions */
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+ 0, /* exported pseudo-variables */
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+ 0, /* extra processes */
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+ mod_init, /* module initialization function */
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+ 0, /* response function */
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+ mod_destroy, /* destroy function */
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+ child_init /* per child init function */
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+};
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+
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+
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+
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+/**
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+ * init module function
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+ */
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+static int mod_init(void)
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+{
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+ LM_DBG("TCP keepalive module loaded.\n");
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+
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+ return 0;
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+}
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+
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+/**
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+ * @brief Initialize async module children
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+ */
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+static int child_init(int rank)
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+{
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+
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+ return 0;
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+}
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+/**
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+ * destroy module function
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+ */
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+static void mod_destroy(void)
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+{
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+ LM_DBG("TCP keepalive module unloaded.\n");
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+}
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+
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+#define _IVALUE_ERROR(NAME) LM_ERR("invalid parameter '" #NAME "' (must be a number)\n")
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+#define _IVALUE(NAME)\
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+int i_##NAME ;\
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+if(fixup_get_ivalue(msg, (gparam_t*)NAME, &( i_##NAME))!=0)\
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+{ \
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+ _IVALUE_ERROR(NAME);\
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+ return -1;\
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+}
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+
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+
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+/**
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+ *
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+ */
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+static int w_tcp_keepalive_enable4(sip_msg_t* msg, char* con, char* idle, char *cnt, char *intvl)
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+{
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+ int fd;
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+ int closefd = 0;
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+
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+ _IVALUE (con)
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+
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+ if (msg != NULL && msg->rcv.proto_reserved1 == i_con) {
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+ if (!get_current_fd(msg->rcv.proto_reserved1, &fd)) {
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+ return -1;
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+ }
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+ } else {
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+ if (!acquire_fd_from_tcpmain(i_con, &fd)) {
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+ return -1;
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+ }
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+ closefd = 1;
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+ }
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+
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+ _IVALUE (idle)
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+ _IVALUE (cnt)
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+ _IVALUE (intvl)
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+
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+ return tcp_keepalive_enable(fd, i_idle, i_cnt, i_intvl, closefd);
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+
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+}
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+
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+static int w_tcp_keepalive_enable3(sip_msg_t* msg, char* idle, char *cnt, char *intvl)
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+{
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+ int fd;
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+
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+ if (msg == NULL) {
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+ return -1;
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+ }
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+
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+ if (!get_current_fd(msg->rcv.proto_reserved1, &fd)) {
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+ return -1;
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+ }
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+
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+ _IVALUE (idle)
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+ _IVALUE (cnt)
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+ _IVALUE (intvl)
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+
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+ return tcp_keepalive_enable(fd, i_idle, i_cnt, i_intvl, 0);
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+}
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+
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+static int w_tcp_keepalive_disable1(sip_msg_t* msg, char* con)
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+{
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+ int fd;
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+ int closefd = 0;
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+
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+ _IVALUE (con)
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+
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+ if (msg != NULL && msg->rcv.proto_reserved1 == i_con) {
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+ if (!get_current_fd(msg->rcv.proto_reserved1, &fd)) {
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+ return -1;
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+ }
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+ } else {
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+ if (!acquire_fd_from_tcpmain(i_con, &fd)) {
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+ return -1;
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+ }
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+ closefd = 1;
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+ }
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+
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+ return tcp_keepalive_disable(fd, closefd);
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+}
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+
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+static int w_tcp_keepalive_disable0(sip_msg_t* msg)
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+{
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+ int fd;
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+
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+ if (msg == NULL)
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+ return -1;
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+
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+ if (!get_current_fd(msg->rcv.proto_reserved1, &fd)) {
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+ return -1;
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+ }
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+
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+ return tcp_keepalive_disable(fd, 0);
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+}
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+
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+/**
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+ *
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+ */
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+static int fixup_tcp_keepalive_numpv(void** param, int param_no)
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+{
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+ return fixup_igp_null(param, 1);
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+}
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+
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+
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Camille Oudot