mirror of https://github.com/PentHertz/srsLTE.git
Starting to add TUN if for SGi interface
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@ -63,9 +63,13 @@ private:
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virtual ~spgw();
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virtual ~spgw();
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static spgw *m_instance;
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static spgw *m_instance;
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srslte::error_t init_sgi_if();
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bool m_running;
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bool m_running;
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srslte::byte_buffer_pool *m_pool;
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srslte::byte_buffer_pool *m_pool;
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int m_sgi_if;
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int m_sgi_sock;
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/*Logs*/
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/*Logs*/
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srslte::log_filter *m_spgw_log;
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srslte::log_filter *m_spgw_log;
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@ -26,6 +26,12 @@
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#include <iostream>
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#include <iostream>
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#include <boost/thread/mutex.hpp>
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#include <boost/thread/mutex.hpp>
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#include <fcntl.h>
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#include <sys/ioctl.h>
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#include <netinet/in.h>
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#include <sys/socket.h>
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#include <linux/if.h>
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#include <linux/if_tun.h>
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#include "spgw/spgw.h"
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#include "spgw/spgw.h"
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namespace srsepc{
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namespace srsepc{
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@ -68,8 +74,11 @@ spgw::cleanup(void)
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int
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int
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spgw::init(spgw_args_t* args, srslte::log_filter *spgw_log)
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spgw::init(spgw_args_t* args, srslte::log_filter *spgw_log)
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{
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{
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//Init log
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m_spgw_log = spgw_log;
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m_spgw_log = spgw_log;
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//Init Si interface
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init_sgi_if();
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m_spgw_log->info("SP-GW Initialized.\n");
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m_spgw_log->info("SP-GW Initialized.\n");
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m_spgw_log->console("SP-GW Initialized.\n");
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m_spgw_log->console("SP-GW Initialized.\n");
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return 0;
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return 0;
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@ -99,4 +108,51 @@ spgw::run_thread()
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return;
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return;
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}
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}
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srslte::error_t
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spgw::init_sgi_if()
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{
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char dev[IFNAMSIZ] = "srs_spgw_sgi";
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struct ifreq ifr;
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// Construct the TUN device
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m_sgi_if = open("/dev/net/tun", O_RDWR);
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m_spgw_log->info("TUN file descriptor = %d\n", m_sgi_if);
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if(m_sgi_if < 0)
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{
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m_spgw_log->debug("Failed to open TUN device: %s\n", strerror(errno));
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return(srslte::ERROR_CANT_START);
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}
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memset(&ifr, 0, sizeof(ifr));
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ifr.ifr_flags = IFF_TUN | IFF_NO_PI;
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strncpy(ifr.ifr_ifrn.ifrn_name, dev, IFNAMSIZ);
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if(ioctl(m_sgi_if, TUNSETIFF, &ifr) < 0)
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{
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m_spgw_log->debug("Failed to set TUN device name: %s\n", strerror(errno));
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close(m_sgi_if);
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return(srslte::ERROR_CANT_START);
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}
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// Bring up the interface
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m_sgi_sock = socket(AF_INET, SOCK_DGRAM, 0);
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if(ioctl(m_sgi_sock, SIOCGIFFLAGS, &ifr) < 0)
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{
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m_spgw_log->debug("Failed to bring up socket: %s\n", strerror(errno));
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close(m_sgi_if);
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return(srslte::ERROR_CANT_START);
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}
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ifr.ifr_flags |= IFF_UP | IFF_RUNNING;
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if(ioctl(m_sgi_sock, SIOCSIFFLAGS, &ifr) < 0)
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{
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m_spgw_log->debug("Failed to set socket flags: %s\n", strerror(errno));
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close(m_sgi_if);
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return(srslte::ERROR_CANT_START);
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}
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//if_up = true;
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return(srslte::ERROR_NONE);
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}
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} //namespace srsepc
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} //namespace srsepc
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