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//==========================================================================
//
// tests/dhcp_test2.c
//
// Test of repeatedly releasing and reacquiring DHCP leases
//
//==========================================================================
// ####BSDALTCOPYRIGHTBEGIN####
// -------------------------------------------
// Portions of this software may have been derived from FreeBSD, OpenBSD,
// or other sources, and if so are covered by the appropriate copyright
// and license included herein.
// -------------------------------------------
// ####BSDALTCOPYRIGHTEND####
//==========================================================================
//#####DESCRIPTIONBEGIN####
//
// Author(s): hmt, tomislav.sostaric@ascom.ch
// Contributors:
// Date: 2002-03-11
// Purpose: Test repeated up-down cycles of interfaces with DHCP.
// Description:
//
//
//####DESCRIPTIONEND####
//
//==========================================================================
/*
* A test program for bringing out the DHCP memory leak bug
* This file is in the public domain and may be used for any purpose
*/
/* INCLUDES */
#include <network.h>
#include <pkgconf/system.h>
#include <pkgconf/net.h>
#include <cyg/infra/testcase.h>
#ifdef CYGPKG_NET_DHCP
#ifdef CYGBLD_DEVS_ETH_DEVICE_H // Get the device config if it exists
#include CYGBLD_DEVS_ETH_DEVICE_H // May provide CYGTST_DEVS_ETH_TEST_NET_REALTIME
#endif
#include <stdio.h> /* printf */
#include <string.h> /* strlen */
#include <cyg/kernel/kapi.h> /* All the kernel specific stuff */
#include <cyg/io/io.h> /* I/O functions */
#include <cyg/hal/hal_arch.h> /* CYGNUM_HAL_STACK_SIZE_TYPICAL */
#include <network.h>
#include <dhcp.h>
// ------------------------------------------------------------------------
#define FALSE 0
#define TRUE 1
#define TICKS_PER_SEC 100
#define nLOOPS 1000000
#define LOOPS 10
// ------------------------------------------------------------------------
#define NINTERFACES (2)
struct bootp bootp_data[ NINTERFACES ];
cyg_uint8 state[ NINTERFACES ];
struct dhcp_lease lease[ NINTERFACES ];
int up[ NINTERFACES ], oldup[ NINTERFACES ];
char *eth[ NINTERFACES ] = { "eth0", "eth1" };
int counter = 0;
void
tdhcp_init( int which )
{
printf("%s: Initializing device to use DHCP.\n", eth[which] );
bzero( &bootp_data[which], sizeof( *bootp_data ) );
state[which] = 0;
bzero( &lease[which], sizeof( *lease ) );
up[which] = oldup[which] = FALSE;
}
void
tdhcp_do_one( int which )
{
oldup[which] = up[which];
up[which] = do_dhcp( eth[which], &bootp_data[which], &state[which], &lease[which] );
}
void
tdhcp_updown_one( int which )
{
/* DHCP wants interface to go up or down, do it. */
if (up[which] != oldup[which]) {
if (up[which]) {
char tbuf[256];
int result;
result = init_net( eth[which], &bootp_data[which]);
if (!result) {
printf("%s: Initialization (DHCP) failed.\n", eth[which] );
return;
}
if (lease[which].expiry == (cyg_tick_count_t)-1) {
strcpy(tbuf, "infinite");
} else {
cyg_tick_count_t now;
unsigned int exp;
now = cyg_current_time();
exp = ((lease[which].expiry > now) ? lease[which].expiry - now : 0) / TICKS_PER_SEC;
sprintf(tbuf, "%ud %uh %um %us", exp / 86400,
(exp / 3600) % 24, (exp / 60) % 60, exp % 60);
}
printf("%s: Configured by DHCP, IP address %s, "
"lease expiry: %s.\n", eth[which],
inet_ntoa(bootp_data[which].bp_yiaddr), tbuf);
printf("%s: Interface ready\n", eth[which] );
} else {
printf("%s: Deconfigured by DHCP.\n", eth[which] );
cyg_thread_delay(10);
do_dhcp_down_net( eth[which], &bootp_data[which], &state[which], &lease[which]);
state[which] = DHCPSTATE_INIT;
}
}
}
void
tdhcp_release_one( int which )
{
/* If DHCP failed (most probably because there was no DHCP server around),
* sleep a bit, then try again. Otherwise, just wait until DHCP needs our
* attention.
*/
if (state[which] == DHCPSTATE_FAILED) {
printf("%s: DHCP failed, will retry later.\n", eth[which] );
cyg_thread_delay(10);
printf("%s: Retrying DHCP.\n", eth[which] );
}
cyg_thread_delay(10);
printf("%s: Releasing DHCP lease.\n", eth[which] );
do_dhcp_release( eth[which], &bootp_data[which], &state[which], &lease[which]);
cyg_thread_delay(10);
up[which] = FALSE;
state[which] = DHCPSTATE_INIT;
}
static void
dhcp_if_fn(cyg_addrword_t data)
{
CYG_TEST_INIT();
#ifdef CYGHWR_NET_DRIVER_ETH0
tdhcp_init( 0 );
#endif // CYGHWR_NET_DRIVER_ETH0
#ifdef CYGHWR_NET_DRIVER_ETH1
tdhcp_init( 1 );
#endif // CYGHWR_NET_DRIVER_ETH1
while ( ++counter < LOOPS ) {
diag_printf( "--------- counter %d ---------\n", counter );
#ifdef CYGHWR_NET_DRIVER_ETH0
tdhcp_do_one( 0 );
#endif // CYGHWR_NET_DRIVER_ETH0
#ifdef CYGHWR_NET_DRIVER_ETH1
tdhcp_do_one( 1 );
#endif // CYGHWR_NET_DRIVER_ETH1
#ifdef CYGHWR_NET_DRIVER_ETH0
tdhcp_updown_one( 0 );
#endif // CYGHWR_NET_DRIVER_ETH0
#ifdef CYGHWR_NET_DRIVER_ETH1
tdhcp_updown_one( 1 );
#endif // CYGHWR_NET_DRIVER_ETH1
#ifdef CYGHWR_NET_DRIVER_ETH0
tdhcp_release_one( 0 );
#endif // CYGHWR_NET_DRIVER_ETH0
#ifdef CYGHWR_NET_DRIVER_ETH1
tdhcp_release_one( 1 );
#endif // CYGHWR_NET_DRIVER_ETH1
}
CYG_TEST_PASS_EXIT( "All done" );
}
// ------------------------------------------------------------------------
#define NTHREADS 1
#define STACKSIZE ( CYGNUM_HAL_STACK_SIZE_TYPICAL + 4096 )
static cyg_handle_t thread[NTHREADS];
static cyg_thread thread_obj[NTHREADS];
static char stack[NTHREADS][STACKSIZE];
void cyg_user_start(void)
{
// Use the DHCP thread prio as provided even though we're not using the thread itself;
// This priroty should be right (lower than net thread prio) by default.
cyg_thread_create(CYGPKG_NET_DHCP_THREAD_PRIORITY, dhcp_if_fn, (cyg_addrword_t) 0, "dhcp",
(void *)stack[0], STACKSIZE, &thread[0], &thread_obj[0]);
cyg_thread_resume(thread[0]);
}
// ------------------------------------------------------------------------
#else // CYGPKG_NET_DHCP
void cyg_user_start(void)
{
CYG_TEST_INIT();
CYG_TEST_NA( "DHCP is not enabled" );
CYG_TEST_EXIT( "DHCP is not enabled" );
}
#endif // CYGPKG_NET_DHCP
// ------------------------------------------------------------------------
// EOF dhcp_test2.c
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